CN115680077B - Drainage device and bathroom equipment - Google Patents
Drainage device and bathroom equipmentInfo
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- CN115680077B CN115680077B CN202110825213.8A CN202110825213A CN115680077B CN 115680077 B CN115680077 B CN 115680077B CN 202110825213 A CN202110825213 A CN 202110825213A CN 115680077 B CN115680077 B CN 115680077B
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Abstract
本发明涉及一种排水装置及卫浴设备，排水装置包括冲水机构、第一控制阀、溢流阀及第二控制阀。冲水机构具有空间大小可变的驱动腔及空间大小可变的从动腔；驱动腔的空间扩张时，驱动腔通过传动使从动腔受压缩而空间变小，从动腔的空间变化量大于驱动腔的空间变化量。第一控制阀具有使驱动腔的注液流道开通的通流状态及使驱动腔的注液流道关断的断流状态。溢流阀连接在驱动腔与从动腔之间，用于在通流状态时使从动腔与驱动腔隔离以及在断流状态时使从动腔与驱动腔连通。第二控制阀用于根据从动腔内的液位高度而控制从动腔的补液流道的通断。在从动腔完成流体的补充后，排水装置即可进行下一次的排水操作，实现排水装置的循环运行。
This invention relates to a drainage device and bathroom fixtures. The drainage device includes a flushing mechanism, a first control valve, an overflow valve, and a second control valve. The flushing mechanism has a drive chamber and a driven chamber with variable sizes. When the drive chamber expands, it compresses the driven chamber through transmission, reducing its size. The change in size of the driven chamber is greater than the change in size of the drive chamber. The first control valve has a flow-through state that opens the injection channel of the drive chamber and a flow-off state that closes the injection channel. The overflow valve is connected between the drive chamber and the driven chamber, used to isolate the driven chamber from the drive chamber in the flow-through state and to connect the driven chamber to the drive chamber in the flow-off state. The second control valve controls the opening and closing of the replenishment channel of the driven chamber according to the liquid level in the driven chamber. After the driven chamber is replenished with fluid, the drainage device can perform the next drainage operation, realizing the cyclic operation of the drainage device.
Description
Technical Field
The invention relates to the technical field of bathroom equipment, in particular to a drainage device and bathroom equipment.
Background
The intelligent closestool is used as bathroom equipment, and the development trend of the intelligent closestool is that the cover plate is thinner as the mobile phone is, and the intelligent closestool is almost flat, so that the attractiveness is improved, and the indoor space is saved. The ceramic water tank of traditional closestool needs to satisfy the high requirement, just has sufficient potential energy and water volume to let the closestool wash cleanly, but the high of ceramic water tank can lead to intelligent closestool whole occupation great indoor space, makes this kind of mode gradually obsolete.
The ceramic-free water tank toilet structure on the market usually directly uses tap water pressure to flush, and has high requirement on water pressure. However, the old community has unstable water pressure, and when the water pressure is insufficient, the output flow speed of the water source is slower, so that the washing and rinsing can not be guaranteed.
In addition, the ceramic-free water tank closestool ensures water quantity by arranging a booster pump, but the mode causes the closestool to have complex structure, high price and easy damage.
Disclosure of Invention
Based on the above, it is necessary to provide a drainage device and a bathroom facility, which solve the problem that the structure is complicated due to the fact that the water pressure of the bathroom facility is limited by a water source and the flow rate cannot be ensured by adding a booster pump.
A drainage device, comprising:
The device comprises a flushing mechanism, a flushing mechanism and a flushing mechanism, wherein the flushing mechanism is provided with a driving cavity with a variable space size and a driven cavity with a variable space size;
a first control valve having a through-flow state in which the liquid injection passage of the drive chamber is opened and a shut-off state in which the liquid injection passage of the drive chamber is shut off;
An overflow valve connected between the driving chamber and the driven chamber for isolating the driven chamber from the driving chamber in a through-flow state and communicating the driven chamber with the driving chamber in a shut-off state, and
And the second control valve is used for controlling the on-off of the fluid supplementing flow passage of the driven cavity according to the liquid level height in the driven cavity.
According to the drainage device, when the driving cavity expands, the space variation of the driven cavity is larger than that of the driving cavity, so that the fluid quantity discharged from the driven cavity is larger than that of the fluid entering the driving cavity, the discharged water quantity can be lifted in a short time, and the flushing or pollution discharge effect is improved. After the drainage of the driven cavity is finished, the regulating and controlling assembly controls the shut-off of the flow channel between the driving cavity and the fluid supply source, controls the fluid to supplement the driven cavity, and reacts to the driving cavity when the driven cavity expands, and the fluid discharged by the driving cavity is guided to supplement the driven cavity through the regulating and controlling assembly. After the fluid is supplemented to the driven cavity, the drainage device can perform the next drainage operation, and the circulation operation of the drainage device is realized. In addition, the drainage device fully utilizes the water quantity amplification form, so that the body of the bathroom equipment is cleaned by fluid with larger volume in unit time, and the body is better flushed by the larger flow velocity under the same volume. Therefore, the difficult problem that the body of the bathroom equipment is not washed cleanly under low water pressure is solved, or the washing effect is met by using less water, and the energy-saving and environment-friendly concept of the prior art is met. Meanwhile, as no booster pump is additionally added, the complex structure, the rising cost or the lowering stability of the drainage device are avoided. In addition, the control of the first control valve can control the fluid replenishment of the driving cavity, and the overflow valve adjusts the communication or isolation between the driven cavity and the driving cavity according to the state of the first control valve, so that the control of the water draining device can be simplified.
In one embodiment, the overflow valve is provided with a liquid inlet, a liquid outlet and a drainage port, the liquid inlet is connected with the first control valve between the liquid supply source, the liquid outlet is communicated with the driving cavity, the drainage port is communicated with the driven cavity, the liquid outlet is isolated from the drainage port in the through-flow state, and the liquid outlet is communicated with the drainage port in the cut-off state.
In one embodiment, the overflow valve comprises a main valve body and a valve core assembly movably arranged in the main valve body, wherein the main valve body is provided with a main flow channel which is communicated with the liquid inlet and the liquid outlet, the valve core assembly is used for isolating the drain port from the main flow channel in the through flow state, and the valve core assembly is used for releasing the isolation between the drain port and the main flow channel in the cut-off state.
In one embodiment, the valve core assembly is provided with a first state for isolating the leakage port from the main flow channel and a second state for communicating the leakage port with the main flow channel, the overflow valve further comprises a delay assembly, the delay assembly is provided with a regulating cavity with variable size, the regulating cavity is communicated with the main flow channel, the delay assembly acts on the valve core assembly when fluid is injected and expands to a preset degree, the valve core assembly is converted into the second state from the first state, or the delay assembly acts on the first control valve when the regulating cavity is injected and expands to a preset degree, and the first control valve is converted into the cut-off state from the through flow state.
In one embodiment, the flushing mechanism is provided with a compression transmission member for abutting against the inner wall of the driven cavity, and when the driven cavity is contracted until the inner wall of the driven cavity abuts against the compression transmission member, the compression transmission member acts on a main side switching trigger piece of the first control valve to enable the first control valve to be switched from the through-flow state to the cut-off state.
In one embodiment, a main side output cavity and a main side inner guide opening communicated with the main side output cavity are arranged in the first control valve, the first control valve is further provided with a main side spacer for abutting against the main side inner guide opening, a main side input cavity is arranged on one side, facing away from the main side inner guide opening, of the main side spacer, the main side input cavity is used for being communicated with a fluid supply source, a main side balance pipe with one end used for being communicated with the main side output cavity is further arranged in the first control valve, and the main side switching trigger piece is used for controlling on-off of the other end of the main side balance pipe and the main side input cavity.
In one embodiment, the flushing mechanism comprises a secondary side shell and a piston assembly, wherein the piston assembly movably penetrates through the secondary side shell to form the driven cavity in a matched mode, the compression transmission piece is arranged on the secondary side shell, and the piston assembly abuts against the compression transmission piece when penetrating into the secondary side shell.
In one embodiment, the flushing mechanism further comprises a liquid level detection piece penetrating through the driven cavity, the liquid level detection piece is floated and lifted by the liquid level in the driven cavity, and the liquid level detection piece acts on a secondary side switching trigger piece of the second control valve when the liquid level detection piece rises to a preset height, so that the second control valve is switched from an on state to an off state.
In one embodiment, the first control valve and the overflow valve are separately arranged.
A bathroom equipment comprises a drainage device and a body connected with the drainage device, wherein the body is provided with a liquid pool, a drain outlet is formed in the bottom of the liquid pool, and fluid discharged from a driven cavity is output to the liquid pool and/or the drain outlet of the body so as to flush the inner wall of the liquid pool and/or discharge dirt from the drain outlet.
Drawings
Fig. 1 is a schematic view of a bathroom fixture according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of the drainage device in FIG. 1, wherein the first control valve is in a through-flow state;
FIG. 3 is an enlarged view of the drain shown in FIG. 2 at A;
FIG. 4 is an enlarged view of the drain device shown in FIG. 2 at B;
FIG. 5 is an enlarged view of the drain device shown in FIG. 2 at C;
FIG. 6 is a schematic view of the drain shown in FIG. 2 in another state, wherein the first control valve is in a shut-off state;
FIG. 7 is a schematic perspective view of the relief valve of FIG. 6;
FIG. 8 is a partial schematic view of the relief valve shown in FIG. 7;
FIG. 9 is an enlarged view of the relief valve shown in FIG. 8 at D;
fig. 10 is an enlarged view of the relief valve E shown in fig. 8.
Reference numerals:
100. Bathroom equipment; 30, a body; 31, a liquid pool; 311, drain, 32, flush, 34, siphon, 35, reservoir, 70, drain, 40, flush mechanism, 401, drive, 402, slave, 41, master side, 411, master side, 412, master side flexible bellows, 42, slave side, 421, slave side, 422, slave side flexible bellows, 43, piston assembly, 431, driving plate, 432, transition lever, 433, slave plate, 434, pressure relief flow path, 435, pressure relief valve, 436, pressure relief push block, 44, compression transmission element, 45, fluid level detection element, 46, reset drive element, 50, first control valve, 51, master side switch trigger, 52, master side output, 53, master side inner guide, 54, master side diaphragm, 55, master side input, 56, master side, 57, master side balance tube, 20, overflow valve, 21, master side, 211, outer joint, 211a, master side flexible bellows, 211b, flow gate, 212, housing, 212a, 212b, 212, seat, 212, valve, 221, seat, valve, 35, valve, seat, valve, etc. the main side switch, the main side, the driving element, the main side input, the main side, the main, further, the main, further, main, main, the device comprises a throttle leakage-proof pad 242, a throttle cover 80, a second control valve 81, a secondary side switching trigger piece 82, a secondary side output cavity 83, a secondary side inner guide opening 84, a secondary side spacer 85, a secondary side input cavity 86, a secondary side balance pipe 900 and a fluid supply source.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
The following describes the technical scheme provided by the embodiment of the invention with reference to the accompanying drawings.
The present invention provides a sanitary shower apparatus 100.
Referring to fig. 1, the bathroom equipment 100 includes a drainage device 70 and a body 30 connected to the drainage device 70, wherein the body 30 is provided with a liquid pool 31, and a drain outlet 311 is provided at the bottom of the liquid pool 31. In one embodiment, the sanitary fixture 100 is a toilet, it being understood that the sanitary fixture 100 may also be a toilet counter, bathtub, or other device requiring a flush. The body 30 may have a flushing waterway 32 to guide the fluid in the drain 70 to the upper side of the liquid bath 31 so that the fluid can uniformly flush the inner wall of the liquid bath 31 from top to bottom. The main body 30 may further have therein an injection waterway 33 and a siphon tube 34 communicating with the drain 311, the injection waterway 33 guiding the fluid in the drain 70 to the liquid pool 31 and discharging the dirt in the liquid pool 31 through the drain 311 and the siphon tube 34.
More specifically, the flushing waterway 32 discharges the fluid to the inner wall of the upper side of the liquid bath 31 through the liquid outlet 321. The body 30 is provided with a receiving cavity 35, the receiving cavity 35 being for receiving the flushing mechanism 40.
The present invention provides a drainage device 70.
As shown in fig. 2 to 6, the drain device 70 includes a flush mechanism 40, a first control valve 50 connected to the flush mechanism 40, an overflow valve 20 connected to the flush mechanism 40, and a second control valve 80 connected to the flush mechanism 40.
The flush mechanism 40 has a drive chamber 401 of variable spatial size and a driven chamber 402 of variable spatial size. When the space of the driving cavity 401 expands, the driving cavity 401 makes the driven cavity 402 shrink spatially through transmission, and the space variation of the driven cavity 402 is larger than that of the driving cavity 401. The first control valve 50 has a flow-through state in which the liquid injection passage of the drive chamber 401 is opened and a flow-off state in which the liquid injection passage of the drive chamber 401 is closed. The relief valve 20 is connected between the drive chamber 401 and the driven chamber 402 for isolating the driven chamber 402 from the drive chamber 401 in a flow-through state and communicating the driven chamber 402 with the drive chamber 401 in a flow-off state. The second control valve 80 is used for controlling the on-off of the fluid supplementing flow passage of the driven cavity 402 according to the liquid level in the driven cavity 402.
Referring to fig. 2 and 6, specifically, when the driving chamber 401 expands due to the driving force, the driving force is transmitted, so that the driven chamber 402 is compressed less and the fluid stored in the driven chamber 402 is discharged. When the driving chamber 401 is expanded by the driving external force, the expansion space variation amount is smaller than the compression space variation amount of the driven chamber 402. The first control valve 50 and the relief valve 20 are used to control the on-off of the injection flow path between the driving chamber 401 and the fluid supply source 900. The second control valve 80 is used to regulate fluid replenishment of the slave chamber 402. Relief valve 20 is used to direct fluid from drive chamber 401 to supplement driven chamber 402 after compression of driven chamber 402 is completed or discontinued. Specifically, the fluid injection passage is provided between the fluid supply source 900, the first control valve 50, the relief valve 20, and the drive chamber 401.
During operation of the drain 70, fluid may be pre-filled into the driven chamber 402 to fully expand the interior space of the driven chamber 402 while pre-evacuating the drive chamber 401 to allow the drive chamber 401 to be in a contracted state. When the fluid supply source 900 generating the driving external force injects the fluid into the driving chamber 401 in the contracted state under the control of the first control valve 50, the driving chamber 401 is spatially expanded by the filling fluid. The drive chamber 401, when expanded, transfers a driving external force to the driven chamber 402, causing the driven chamber 402 to be compressed, allowing the stored fluid in the driven chamber 402 to be expelled to the body 30 of the sanitary fixture 100. Since the spatial variation of the driven chamber 402 is greater than that of the driving chamber 401 when the driving chamber 401 is expanded, the amount of fluid discharged from the driven chamber 402 is greater than that of fluid entering the driving chamber 401, thereby improving the amount of water discharged in a short time and the flushing or sewage discharging effect. After the drainage of the driven chamber 402 is completed, the first control valve 50 is switched from the flow state to the shut-off state, so that the flow passage between the driving chamber 401 and the fluid supply source 900 is shut off, and the relief valve 20 communicates the driving chamber 401 with the driven chamber 402. The second control valve 80 supplements the driven cavity 402, when the driven cavity 402 expands, the fluid discharged from the driving cavity 401 reacts to the driving cavity 401, and the fluid is guided to supplement the driven cavity 402 through the overflow valve 20, so that the driven cavity 402 supplements the fluid rapidly. After the fluid is replenished from the driven chamber 402, the drain device 70 can perform the next drain operation, the drain operation switches the first control valve 50 from the shut-off state to the through-flow state, and the fluid supply source 900 again injects the fluid into the driving chamber 401, thereby realizing the circulation operation of the drain device 70.
In some embodiments, the fluid supply 900 is the output of a municipal tap water line and the fluid injected into the driving chamber 401 or the driven chamber 402 is tap water. In other embodiments, the fluid supply 900 may be the output of municipal tap water after passing through the pressurizing pump, or the pumping output of the external pump body of the bathroom equipment 100 to the external water storage.
The flush mechanism 40 has a variety of configurations.
In some embodiments, the flush mechanism 40 includes a primary side housing 41, a secondary side housing 42, and a piston assembly 43. The piston assembly 43 is movably disposed through the main side housing 41 such that the main side housing 41 and the piston assembly 43 cooperate to form the drive chamber 401. The piston assembly 43 movably penetrates through the secondary side housing 42, so that the secondary side housing 42 and the piston assembly 43 cooperate to form a driven cavity 402.
In the embodiment shown in fig. 2, the piston assembly 43 includes a driving plate 431, a transition rod 432, and a driven plate 433, which are sequentially connected. The driving plate 431 is movably received in the main side case 41 and cooperates with the main side case 41 to form the driving chamber 401. The driven plate 433 is movably accommodated in the secondary side housing 42 and cooperates with the secondary side housing 42 to form the driven cavity 402. Specifically, the main side case 41 is disposed opposite to the opening of the sub side case 42. When the driving chamber 401 expands, the driving plate 431 is moved out of the main side housing 41, and the driving plate 431 acts on the driven plate 433 through the transition lever 432, so that the driven plate 433 moves in a direction into the sub side housing 42, and the space of the driven chamber 402 is contracted. More specifically, the main side case 41 is provided integrally with the sub side case 42. The main side housing 41 is provided with a main side port 411 communicating with the drive chamber 401, and fluid enters and exits the drive chamber 401 through the main side port 411.
In the embodiment shown in fig. 2, the inner diameter of the secondary side housing 42 is larger than the inner diameter of the primary side housing 41, and the area of the driven plate 433 is larger than the area of the driving plate 431, so that the space variation of the driven chamber 402 is larger than the space variation of the driving chamber 401 during the drainage of the driven chamber 402, and the volume of fluid discharged from the driven chamber 402 is larger than the volume of fluid injected into the driving chamber 401.
In the embodiment shown in fig. 2, the flushing mechanism 40 further includes a main side flexible bellows 412 accommodated in the main side housing 41, both open ends of the main side flexible bellows 412 are connected to the main side housing 41 and the active plate 431, respectively, and a gap is provided between the active plate 431 and an inner wall of the main side housing 41. In the process that the driving plate 431 goes deep into or retreats from the main side case 41, the wall body of the main side flexible bellows 412 is folded or unfolded correspondingly, and the sealing effect of the driving chamber 401 can be ensured and the fluency of the movement of the driving plate 431 in the main side case 41 can be ensured because the main side flexible bellows 412 has the sealing property.
Further, in some embodiments, in order to avoid excessive expansion of the driving chamber 401 due to failure of the transmission of the compression transmission member 44 and damage to the main side flexible bellows 412, the driving plate 431 is formed with a pressure relief flow passage 434 for communicating with the driving chamber 401, and the piston assembly 43 further includes a pressure relief valve element 435 for normally blocking the pressure relief flow passage 434 and a pressure relief push block 436 connected to the main side case 41. In the embodiment shown in fig. 2 and 5, the pressure relief valve core 435 is abutted to the port of the pressure relief flow passage 434 under the action of the elastic component, the pressure relief push block 436 is disposed near the edge of the opening of the main side housing 41, and when the driving plate 431 is about to be separated from the opening of the main side housing 41 during the expansion of the driving cavity 401, the pressure relief push block 436 is abutted to the pressure relief valve core 435, so that the pressure relief valve core 435 is separated from the port of the pressure relief flow passage 434, and the fluid in the driving cavity 401 overflows through the pressure relief flow passage 434, thereby preventing the excessive expansion of the driving cavity 401. In some embodiments not shown in the figures, it is also possible that the partial inner wall of the main side housing 41 is deformed, and the pressure relief valve element 435 leaves the port of the pressure relief flow passage 434 under the abutment of the deformed inner wall of the main side housing 41.
In the embodiment shown in fig. 2, the flushing mechanism 40 further includes a secondary side flexible bellows 422 accommodated in the secondary side housing 42, two open ends of the secondary side flexible bellows 422 are respectively connected to the secondary side housing 42 and the driven plate 433, and a gap is provided between the driven plate 433 and an inner wall of the secondary side housing 42.
In some embodiments, the flush mechanism 40 has a compression transmission 44 for abutting against the inner wall of the driven chamber 402. When the driven chamber 402 is contracted until the inner wall thereof abuts against the compression driver 44, the compression driver 44 acts on the primary side switching trigger 51 of the first control valve 50 to switch the first control valve 50 from the flow-through state to the flow-off state. When the space of the driven cavity 402 is reduced due to compression, at least two opposite inner walls exist in the driven cavity 402, and the distance between the two inner walls is reduced, when the compression driving member 44 is mounted on one inner wall, the opposite inner wall will abut against the compression driving member 44, so that the compression driving member 44 will transmit to the main side switching trigger member 51 of the first control valve 50, and the main side switching trigger member 51 will adjust the internal state of the first control valve 50.
In the embodiment shown in fig. 2, the compression driver 44 is mounted on the secondary side casing 42, and the piston assembly 43 penetrates into the secondary side casing 42 to some extent to abut against the compression driver 44. Specifically, the compression transmission member 44 is disposed through the secondary side housing 42, one end of the compression transmission member 44 faces the driven plate 433, one end of the compression transmission member 44 is biased toward the driven plate 433 under the action of the elastic member, and the other end of the compression transmission member 44 is exposed out of the secondary side housing 42. The driven plate 433 is brought into contact with one end of the compression transmission member 44 when penetrating into the sub-side casing 42 to a predetermined extent, pushing the compression transmission member 44 outward of the sub-side casing 42, and the other end of the compression transmission member 44 acts on the main-side switching trigger 51 of the first control valve 50. In the embodiment shown in fig. 2, the other end of the compression driving member 44 acts on the main side switching valve member through the intermediate driving member. In some embodiments not shown in the figures, the other end of the compression transmission member 44 is directly connected to the main side switching trigger 51 of the first control valve 50.
In some embodiments, the flushing mechanism 40 further includes a liquid level detecting member 45 penetrating the driven chamber 402, and the liquid level detecting member 45 is floated and lifted by the liquid level in the driven chamber 402. When the liquid level detecting member 45 rises to a predetermined height, the secondary side switching trigger 81 of the second control valve 80 is applied to switch the second control valve 80 from the on state to the off state.
In the embodiment shown in fig. 2, the secondary side housing 42 is located at the upper side of the primary side housing 41, and the liquid level detecting member 45 is disposed at the upper portion of the secondary side housing 42, and the density of the liquid level detecting member 45 is lower than that of the fluid. When the liquid level in the driven chamber 402 is high, the portion of the liquid level detecting member 45 located in the driven chamber 402 is immersed in the fluid, and the buoyancy force moves the liquid level detecting member 45 to the outside of the secondary side casing 42 and acts on the secondary side switching trigger member 81 of the second control valve 80, so that the second control valve 80 cuts off the fluid replenishing flow path, and the fluid replenishing into the driven chamber 402 is stopped. When the driven plate 433 moves down to lower the liquid level in the driven cavity 402, the liquid level is lower than the liquid level detecting member 45, and the liquid level detecting member 45 moves down to leave the secondary side switching trigger member 81 of the second control valve 80, so that the second control valve 80 resumes the fluid flow of the fluid replenishing channel, and the fluid supplied from the fluid supply source 900 is injected into the driven cavity 402. Specifically, the secondary side casing 42 is provided with a secondary side port 421, and a fluid-replenishing flow path is formed in this order between the fluid supply source 900, the second control valve 80, and the secondary side port 421.
In some embodiments, the first control valve 50 is provided separately from the relief valve 20 so as to accommodate the accommodation space of the body 30. In the embodiment shown in fig. 2, the relief valve 20 is disposed close to the main side housing 41 or directly connected to the main side housing 41, while the first control valve 50 is installed in a layout according to the remaining space within the body 30.
The first control valve 50 has various structural forms.
In some embodiments, a primary side output chamber 52 and a primary side inner pilot port 53 communicating with the primary side output chamber 52 are provided within the first control valve 50. The first control valve 50 is further provided with a main side diaphragm 54 for abutting against the main side inner guide opening 53. The first control valve 50 is provided with a main side input chamber 55 at a side of the main side septum 54 facing away from the main side inner lead 53, the main side input chamber 55 being for communicating with the fluid supply 900. The first control valve 50 is further provided with a main side balance pipe 57 having one end for communicating with the main side output chamber 52. The main side switching trigger 51 is used to control the on-off of the other end of the main side balance tube 57 to the main side input chamber 55. The primary side outlet chamber 52 is for communication to the relief valve 20.
Specifically, when the main side switching trigger 51 isolates the other end of the main side balance tube 57 from the main side input chamber 55, the fluid supplied from the fluid supply source 900 enters the main side input chamber 55, the pressure of the fluid in the main side input chamber 55 acts on one side of the main side diaphragm 54, and the other side of the main side diaphragm 54 is not subjected to the fluid pressure, and to achieve the force balance, the other side of the main side diaphragm 54 abuts against the edge around the main side inner guide port 53, so that the main side input chamber 55 and the main side output chamber 52 are hermetically isolated by the main side diaphragm 54. Thereby preventing fluid provided by the fluid supply 900 from flowing through the primary side output chamber 52 to the drive chamber 401.
When the main side switching trigger 51 communicates the other end of the main side balance tube 57 with the main side input chamber 55, the fluid in the main side input chamber 55 enters the main side output chamber 52 through the main side balance tube 57, the fluid in the main side output chamber 52 also provides a pressure effect on the side of the main side partition 54 facing the main side inner guide opening 53 after the fluid in the main side output chamber 52 is fully accumulated, the main side partition 54 leaves the main side inner guide opening 53 after the fluid pressure on both sides of the main side partition 54 is balanced, and when the fluid in the main side input chamber 55 enters the main side input chamber 55 through the gap between the main side partition 54 and the main side inner guide opening 53, the gap between the main side partition 54 and the main side inner guide opening 53 is further increased due to the pressure of the fluid, and the fluid flowing in from the main side input chamber 55 enters the main side output chamber 52 through the main side inner guide opening 53. After the main side input chamber 55 and the main side output chamber 52 communicate through the main side inner guide port 53, the pressure of the fluid mainly acts on the relief valve 20 at the rear end.
In the embodiment shown in fig. 3, the main side input chamber 55 communicates with one end of a main side balance tube 57 through a main side guide hole 56. The main side switching trigger 51 approaches the main side guide hole 56 by the elastic member, isolating the main side input chamber 55 from one end of the main side balance tube 57. When the liquid level detecting member 45 acts on the main side switching trigger 51, the main side switching trigger 51 moves away from the main side guide hole 56 and unseals the main side guide hole 56, isolating the main side input chamber 55 from one end of the main side balance tube 57.
By controlling conduction of the main side balance tube 57 by the main side switching trigger 51, the main side diaphragm 54 is separated from the main side inner lead opening 53 by the pressure of the fluid so that both have a large flow-through section through the main side inner lead opening 53 after communication between the main side input chamber 55 and the main side output chamber 52.
Relief valve 20 has a variety of configurations.
In some embodiments, the relief valve 20 is provided with a liquid inlet 211a, a liquid outlet 212a and a liquid outlet 212e, and the first control valve 50 is connected between the liquid inlet 211a and the fluid supply 900. The liquid outlet 212a is connected to the driving chamber 401, and the liquid drain 212e is connected to the driven chamber 402. In the through-flow state, the liquid outlet 212a communicates with the liquid inlet 211a and is isolated from the drain 212 e. In the shut-off state, the liquid outlet 212a communicates with the liquid discharge outlet 212e and is isolated from the liquid inlet 211a to replenish the fluid in the driving chamber 401 to the driven chamber 402 through the liquid discharge outlet 212 e.
In some embodiments, the relief valve 20 includes a main valve body 21 and a spool assembly 22 movably disposed within the main valve body 21. The main valve body 21 is provided with a main flow passage 212b communicating the liquid inlet 211a and the liquid outlet 212 a. In the through-flow condition, the spool assembly 22 serves to isolate the drain port 212e from the main flow passage 212b. In the shut-off state, the valve element assembly 22 releases the isolation between the drain port 212e and the main flow passage 212b, so that after the drainage of the driven cavity 402 is completed, the fluid in the driving cavity 401 is guided into the driven cavity 402 in the water replenishing process of the driven cavity 402, and not only can the fluid in the driving cavity 401 be discharged, but also the water replenishing of the driven cavity 402 can be accelerated.
In the embodiment shown in fig. 8, the spool assembly 22 has a first state in which the drain port 212e is isolated from the main flow passage 212b and a second state in which the drain port 212e is in communication with the main flow passage 212 b. The delay assembly 23 has a variable-sized adjustment chamber 234. The regulated chamber 234 communicates with the main flow passage 212b, and when the regulated chamber 234 expands to a predetermined extent upon fluid injection, the delay assembly 23 acts on the spool assembly 22, causing the spool assembly 22 to transition from the first state to the second state.
The regulating chamber 234 is in an empty state before the main valve body 21 is filled with fluid. When fluid begins to flow into the main valve body 21, the valve element assembly 22 is in the first state, and the pressure of the fluid forces the valve element assembly 22 to act, so that the valve element assembly 22 isolates the drain port 212e from the main flow channel 212 b. In the first state, the fluid in the main flow channel 212b is injected into the adjusting cavity 234 to expand the adjusting cavity 234, and after the adjusting cavity 234 expands to a predetermined extent, the adjusting cavity 234 has a certain volume and generates a force on the valve core assembly 22 when expanding further, so that the valve core assembly 22 is converted from the first state to the second state, and the isolation of the drain port 212e is released, so that the fluid in the main flow channel 212b can be discharged through the drain port 212 e. Since spill valve 20 is configured to act as a delay time between the two states of spill valve 20 from the injection of fluid to the release of relief port 212e by adjusting the expansion time of chamber 234, the need to control the unloading delay of spill valve 20 using electronics is avoided, thereby enabling reliable initiation of the unloading spill of fluid.
Meanwhile, since the overflow valve 20 automatically realizes the delay of opening the drain port 212e, only the control signal is needed to be provided for the first control valve 50 or the second control valve 80 in the bathroom equipment 100, and the state switching of the overflow valve 20 is controlled by the delay of the overflow valve, so that the control flow of the bathroom equipment 100 can be simplified, and the stability of the bathroom equipment 100 can be improved.
The main valve body 21 has various structural forms.
In some embodiments, a relief port 212c is provided in the main valve body 21, and the relief port 212e communicates with the main flow passage 212b through the relief port 212 c. In the first state, the valve element assembly 22 is in sealing contact with the edge of the drain port 212 c.
In some embodiments, the main flow channel 212b includes a liquid inlet 211a, a liquid outlet 212a, and a through-flow bayonet 211b, where the liquid inlet 211a and the liquid outlet 212a are communicated through the through-flow bayonet 211b. The through-flow port 211b is provided so as to face the drain port 212c, and the valve body assembly 22 can abut against the periphery of the through-flow port 211b to block the through-flow port 211b. When fluid flows from the inlet 211a to the outlet 212a, the valve element assembly 22 is pushed toward the drain port 212c by the fluid pressure. The valve element assembly 22 moves along the through-flow side linear path between the through-flow bayonet 211b and the drain bayonet 212c. When fluid is injected from the liquid inlet 211a, the fluid pushes the valve core assembly 22 back to the through-flow bayonet 211b, and meanwhile, the valve core assembly 22 approaches to the drainage bayonet 212c, so that the valve core assembly 22 finally moves to the isolation station to block the drainage bayonet 212c. Specifically, the periphery of the through-flow port 211b forms a flange facing the drain port 212c, and after the end of the initial stage of through-flow, the valve element assembly 22 is pushed reversely to be in sealing contact with the flange around the through-flow port 211b, so that the fluid flowing back from the liquid outlet 212a can be prevented from flowing to the liquid inlet 211a, and the valve element assembly 22 can be reliably pushed to the drain port 212c when the fluid enters from the liquid inlet 211 a.
Further, after the primary side switching trigger 51 is subjected to the compression driver 44, the fluid in the primary side input chamber 55 is allowed to flow into the primary side output chamber 52 through the primary side balance tube 57. Due to the sealing abutment between the valve core assembly 22 and the through-flow bayonet 211b, the fluid in the main-side output cavity 52 cannot directly flow to the liquid outlet 212a or the drain outlet 212e until the main-side output cavity 52 is completely filled with the fluid and the fluid in the main-side output cavity 52 can generate pressure on the main-side spacer 54, the pressure of the fluid can continuously act on the valve core assembly 22, so that the liquid inlet 211a is communicated with the liquid outlet 212 a. By the abutment of the spool assembly 22 against the through-flow bayonet 211b at the initial stage, the reliable release of the main-side spacer 54 from the main-side inner guide port 53 can be ensured.
In some embodiments, a flange is formed around the drain bayonet 212c toward the inlet 211a, and the spool assembly 22 is pushed by fluid pressure in the forward direction of the flow-side linear path to an isolation station within the main valve body 21 during the initial stage of flow. The spool assembly 22 is in sealing abutment with the flange around the drain port 212c at the isolation station to prevent fluid in the main flow passage 212b from flowing through the drain port 212c to the drain port 212e.
In the embodiment shown in fig. 8, a relief cavity 212d is formed in the main valve body 21, a relief port 212e communicates to the relief cavity 212d, and a relief bayonet 212c serves as an opening of the relief cavity 212 d. After the initial stage of the through-flow, the fluid in the main flow channel 212b enters the drain cavity 212d through the drain bayonet 212c, and is discharged from the overflow valve 20 through the drain port 212e through the drain cavity 212 d.
In some embodiments not shown, the drain port 212e may be disposed on one side of the through-flow side linear path, and the thickness of the valve core assembly 22 along the through-flow side linear path may be greater than the diameter of the drain port 212 e. When the drain port 212e moves to a position corresponding to the drain port 212e, the side wall of the valve element assembly 22 closes off the drain port 212e, thereby isolating the drain port 212e from the main flow passage 212 b.
In some embodiments, the main valve body 21 is provided separately so as to mount the spool assembly 22 into the main valve body 21. Specifically, the main valve body 21 includes an outer joint 211 and a main valve housing 212 connected to the outer joint 211. The liquid inlet 211a is formed at the exposed end of the outer joint 211, and the part of the outer joint 211, which is in nested fit with the main valve housing 212, forms a through-flow bayonet 211b. The main flow passage 212b is formed in the outer joint 211 and the main valve housing 212, respectively, the liquid outlet 212a is formed in the exposed end of the main valve housing 212, and the drain bayonet 212c and the drain cavity 212d are formed in the main valve housing 212.
In the embodiment shown in fig. 8, after the spool assembly 22 is accommodated in the main valve housing 212, the main valve housing 212 and the outer joint 211 may be fixed by fixing with screws or the like, thereby accommodating the spool assembly 22 in the main valve body 21. Further, a sealing ring may be provided at a position where the outer joint 211 and the main valve housing 212 are nested in a pair, the sealing ring abutting between the outer joint 211 and the main valve housing 212 to prevent fluid in the main flow passage 212b from leaking from the interface between the outer joint 211 and the main valve housing 212. More specifically, the main valve housing 212 is provided with a boss pipe 212f, and the boss pipe 212f communicates with the main flow passage 212b through a control port 212g of the main valve housing 212.
The spool assembly 22 has a variety of configurations.
In some embodiments, the spool assembly 22 includes a spool body 221. The valve body 221 is movably disposed in the main flow passage 212b along the through-flow side linear path. Specifically, the through-flow side linear path of the valve body 221 is located between the liquid inlet 211a and the drain port 212 c. The movable path of the valve body 221 is directed to the liquid inlet 211a. More specifically, the through-flow side linear path of the valve body 221 is located between the through-flow bayonet 211b and the drain bayonet 212 c.
In an embodiment not shown, in the initial stage of the through-flow, the face side of the spool body 221 is acted on by the pressure of the injected fluid, so that the spool body 221 is pushed to the isolation station in the forward direction of the through-flow side linear path. When the valve body 221 is in the isolation position, the back side of the valve body 221 is in sealing contact with the edge of the drain port 212c. When the regulating chamber 234 expands to a predetermined extent, the delay assembly 23 transmits the liquid pressure to the back side of the valve body 221, causing the valve body 221 to leave the isolation station and release the separation between the leakage orifice 212e and the main flow passage 212 b. Specifically, the face side of the valve body 221 is disposed opposite to the back side, the face side of the valve body 221 faces the through-flow bayonet 211b, and the back side of the valve body 221 faces the drain bayonet 212c.
In the embodiment shown in fig. 8 and 9, a first leakage preventing pad 222 is connected to the back side of the valve body 221, and a second leakage preventing pad 223 is connected to the surface side of the valve body 221. In the initial stage of the through-flow, the back side of the valve body 221 is brought into contact with the flange around the drain port 212c through the first leakage preventing pad 222, and after the end of the initial stage of the through-flow, the face side of the valve body 221 is brought into contact with the flange around the through-flow port 211b through the second leakage preventing pad 223, and the first leakage preventing pad 222 or the second leakage preventing pad 223 has elasticity and can sufficiently contact with the flange around the drain port 212c or the flange around the through-flow port 211b, thereby improving the leakage preventing performance of the valve body assembly 22.
In the embodiment shown in fig. 8 and 9, to realize the sliding movement of the valve element assembly 22 in the main flow passage 212b, a through-flow guide 221a is connected to the surface side of the valve element body 221, a drain guide 221b is connected to the back side of the valve element body 221, the through-flow guide 221a is slidably received in the outer joint 211, and the drain guide 221b is slidably received in the drain chamber 212 d. The through-flow guide 221a and the drain guide 221b are provided with through-flow holes, respectively. When the valve body 221 is abutted against the flange around the drain port 212c by the first leakage preventing pad 222, the part of the through-flow guide 221a is still accommodated in the main flow passage 212b between the liquid inlet 211a and the through-flow port 211b, and the fluid injected from the liquid inlet 211a flows into the liquid outlet 212a through the through-flow hole in the through-flow guide 221 a. After the valve body 221 leaves the isolation station, the drain guide 221b remains partially accommodated in the drain cavity 212d, and the fluid in the main flow channel 212b enters the drain cavity 212d through the through-flow hole on the drain guide 221b, and then flows out of the overflow valve 20 through the drain hole 212 e.
The delay assembly 23 has various structural forms.
In some embodiments, the delay assembly 23 includes a housing 231 coupled to the main valve body 21, a piston member 232 movably coupled to the housing 231, and a transmission member 233 coupled to the piston member 232, the piston member 232 sealingly engaging the housing 231 to form a regulated chamber 234. When the adjustment chamber 234 expands with replenishment of fluid, the piston member 232 moves along a control-side linear path. When the adjusting cavity 234 expands to a predetermined extent, the piston member 232 can drive the transmission member 233 to approach and push the valve core assembly 22, so as to transmit the liquid pressure to the valve core assembly 22, and make the valve core body 221 leave the isolation station, and the through-flow initial stage is ended.
In the embodiment shown in fig. 8 and 10, the delay assembly 23 further includes a sealing flexible member 236 for forming an inner wall of the adjusting chamber 234, the sealing flexible member 236 is tapered to have a large end and a small end, the large end of the sealing flexible member 236 is sealed to the housing 231, and the small end of the sealing flexible member 236 is sealed to the piston member 232. Specifically, when fluid is not injected into the adjustment chamber 234, the space of the adjustment chamber 234 is contracted so that the piston member 232 abuts against the housing 231 for forming the inner wall of the adjustment chamber 234. When the main flow passage 212b gradually injects fluid into the regulating chamber 234, the space of the regulating chamber 234 expands while the piston member 232 moves away from the inner wall of the housing 231 for forming the regulating chamber 234, and when the expansion is regulated to a predetermined degree, the pressure of the fluid is transmitted to the valve body 221 through the transmission member 233.
More specifically, as shown in fig. 8 and 10, the area of the piston member 232 for receiving the fluid pressure in the adjustment chamber 234 is larger than the area of the spool assembly 22 for receiving the fluid pressure in the main flow passage 212b in the initial stage of the through-flow. Since the regulating chamber 234 communicates with the main flow passage 212b through the delay flow passage 235 at the initial stage of the through-flow, when the regulating chamber 234 expands to a predetermined degree, the valve body 221 blocks the movement of the piston member 232 through the transmission member 233, further expansion of the regulating chamber 234 is restricted, the flow rate through the delay flow passage 235 gradually decreases, but the pressure between the regulating chamber 234 and the main flow passage 212b gradually balances. Because the pressure of the fluid to the valve core 221 or the piston 232 is related to the pressure and the stress area, when the pressure between the joint cavity and the main flow channel 212b is close, the stress area of the piston 232 towards the side of the adjusting cavity 234 is larger than that of the valve core 221, so that the stress of the piston 232 is larger than that of the valve core 221, and when the piston 232 pushes the valve core assembly 22 through the transmission piece 233, the valve core 221 can overcome the pressure of the fluid born by the surface side and leave the isolation station.
In the embodiment shown in fig. 10, the small end of the seal flexible member 236 is provided in a closed configuration and the large end is provided in an open configuration for sealing. The piston member 232 includes a first piston block 232a and a second piston block 232b, and the closed end of the seal flexible member 236 is clamped between the first and second piston blocks 232a and 232b, thereby providing the adjustment chamber 234 with good sealing properties while reducing resistance to movement of the piston member 232. Specifically, the first piston block 232a is located outside the adjusting chamber 234 and connected to the transmission member 233, the second piston block 232b is located inside the adjusting chamber 234, and the first piston block 232a and the second piston block 232b are fixedly connected by screws or other fixing means.
In the embodiment shown in fig. 8 and 10, the housing 231 includes a first sub-housing 231a and a second sub-housing 231b, the first sub-housing 231a is configured to cooperate with the piston member 232 to form the adjustment chamber 234, and the first sub-housing 231a is connected to the main valve housing 212 through the second sub-housing 231 b. Specifically, the second sub-housing 231b is integrally formed with the main valve housing 212 to simplify assembly of the relief valve 20. More specifically, the large end of the sealing flexible member 236 is radially extended with an annular rim clamped between the first and second sub-housings 231a and 231b, thereby facilitating assembly of the sealing flexible member 236 and improving sealability of the adjustment chamber 234.
In an embodiment not shown, the inner cavity of the housing 231 may be columnar, and the edge of the piston member 232 may be kept in sealing contact with the inner wall of the housing 231 when moving relative to the housing 231, so that a variable-size adjusting cavity 234 is formed between the piston member 232 and the inner wall of the housing 231. In other embodiments, the piston member 232 and the housing 231 may be sealingly engaged in other manners.
In the embodiment shown in fig. 8, the transmission member 233 is used to push the back side of the valve body 221, so that the valve body 221 is separated from the drain port 212c. Specifically, the main valve housing 212 is formed with a jack, and the transmission member 233 is rod-shaped and movably penetrates the jack along an axial direction of the jack so as to limit a moving direction of the piston member 232, so that an expansion degree of the adjusting chamber 234 and a moving distance of the piston member 232 along a control side linear path have a linear relationship, and a pushing force on the valve core 221 can be generated when the adjusting chamber 234 expands to a predetermined degree each time. More specifically, the diameter of transfer member 233 is smaller than the inner diameter of relief cavity 212d to avoid blocking fluid within relief cavity 212d from flowing to relief port 212e.
In some embodiments, the delay assembly 23 further includes a first elastic member 238 coupled to the spool assembly 22, the first elastic member 238 being configured to move the spool assembly 22 away from the relief port 212c to reduce a thrust requirement of the transfer member 233 on the spool assembly 22. Specifically, as shown in fig. 9, the first elastic member 238 abuts between the valve core assembly 22 and the main valve body 21, and can apply an elastic force to the valve core assembly 22 from the drain port 212c toward the through port 211b, so that the fluid injected from the fluid inlet 211a can push the valve core body 221 to move before the initial stage of the through flow. More specifically, the first elastic member 238 is a compression spring, and abuts between the back side of the spool body 221 and the inner wall of the drain chamber 212 d.
In some embodiments, the delay assembly 23 further includes a second elastic member 239 connected to the transfer member 233 or the piston member 232, and the second elastic member 239 is configured to move the transfer member 233 or the piston member 232 in the direction of compressing the regulating chamber 234 after the end of the initial stage of the through-flow, so as to discharge the fluid in the regulating chamber 234 to the main flow passage 212b along the delay flow passage 235. In the embodiment shown in fig. 8 and 10, the second elastic member 239 is a compression spring and is accommodated in the second sub-housing 231b, and both ends of the second elastic member 239 are respectively abutted between the main valve housing 212 and the first piston block 232a, so that the adjusting chamber 234 can be compressed by the piston member 232. Specifically, a side of the first piston block 232a facing the second elastic member 239 is provided with an annular groove to receive one end of the second elastic member 239 and position the second elastic member 239.
In some embodiments, the delay assembly 23 further includes a tube 237, one end of the tube 237 being connected to the primary flow passage 212b and the other end being connected to the adjustment chamber 234. In the embodiment shown in fig. 8, one end of the tube 237 is connected to the main valve body 21, specifically, one end of the tube 237 is fitted over the boss 212 f. In an embodiment not shown, the other end of the tube 237 is connected to the housing 231. The tube 237 has a delay flow passage 235 therein, one end of the delay flow passage 235 communicates with the main flow passage 212b, and the other end communicates with the regulating chamber 234.
Optionally, in some embodiments, the pipe 237 is detachably connected to the main valve body 21 and the housing 231, and the cross-sectional area of the delay runner 235 can be changed by replacing the pipe 237 with a different inner diameter, so that the flow rate from the main runner 212b into the adjusting cavity 234 can be controlled in the initial stage of the through-flow, and further the time required for expanding the adjusting cavity 234 to a predetermined extent and the duration of the initial stage of the through-flow can be adjusted to adapt to the control requirement of the bathroom equipment 100.
In some embodiments, the tube 237 is a hose to accommodate the receiving space of the relief valve 20 and to reduce the chance of breakage of the tube 237.
In some embodiments not shown, the delay flow path 235 may be formed in the housing 231 and the main valve body 21 when the housing 231 and the main valve body 21 are integrally formed.
In an embodiment not shown, the action of the transmission member 233 or the piston member 232 pushing the valve core assembly 22 may be removed, so that after the expansion of the regulating chamber 234 to a predetermined extent, the regulating chamber 234 has a certain volume and generates a force on the primary side switching trigger member 51 upon further expansion, so that the first control valve 50 is shifted from the flow state to the flow-blocking state, and the fluid output from the fluid supply source 900 is stopped to be input to the driving chamber 401 through the first control valve 50. In another embodiment, not shown, after the adjusting chamber 234 expands to a predetermined extent, the adjusting chamber 234 may have a certain volume and further expands, and the transmission member 233 or the piston member 232 may simultaneously apply a force to the spool assembly 22 and the master-side switching trigger member 51, so that the spool assembly 22 may be changed from the first state to the second state and the first control valve 50 may be changed from the flow state to the blocking state, and the first control valve 50 may be used to stop the fluid input from the fluid supply source 900 and simultaneously open the flow path from the driving chamber 401 to the driven chamber 402.
In some embodiments, relief valve 20 further includes a throttle assembly 24.
The main flow channel 212b is communicated with the regulating cavity 234 through the throttling assembly 24, and the throttling assembly 24 is used for controlling the flow rate of the fluid flowing from the main flow channel 212b to the regulating cavity 234 in the initial stage of the through flow.
In the embodiment shown in fig. 8, one end of the tube 237 is connected to the main valve body 21, and the other end of the tube 237 is connected to the adjustment chamber 234 via the throttle assembly 24. Specifically, a throttle seat 231c is formed on the outer side of the housing 231, a transition hole 231d is further formed on the housing 231, and the adjusting chamber 234 is communicated with the inner cavity of the throttle seat 231c through the transition hole 231 d. The throttle assembly 24 includes a throttle core 241 accommodated in the throttle seat 231c and a throttle cover 242 detachably connected to the throttle seat 231c, and the throttle core 241 is provided with a throttle hole 243. By replacing the throttle core 241 with a different size throttle orifice 243, the flow rate of fluid flowing from the main flow passage 212b to the regulating chamber 234 can be adjusted. More specifically, the other end of the tube 237 is nested with the throttle cover 242, the throttle cover 242 is screwed with the throttle seat 231c, and the tube 237 is a hose.
Further, the side of the throttling core 241 near the transition hole 231d is connected with a throttling leakage preventing pad 244, and the throttling core 241 is abutted against the housing 231 through the throttling leakage preventing pad 244 so as to prevent the fluid from bypassing the throttling hole 243 and flowing into the transition hole 231d. Further, a gap is provided between the edge of the throttle core 241 or the throttle leakage preventing pad 244 and the inner wall of the throttle seat 231c, and the throttle core 241 has a movable gap in the throttle seat 231c in a direction from the throttle core 241 to the transition hole 231d, so that the fluid flowing from the main flow passage 212b to the regulating chamber 234 pushes the throttle core 241 to be in contact with the housing 231 at the initial stage of the through-flow, and the fluid can only enter the regulating chamber 234 through the throttle hole 243 limited by the throttle leakage preventing pad 244. After the end of the initial stage of the through-flow, the regulating chamber 234 is compressed to discharge the fluid inside to the main flow channel 212b through the delay flow channel 235, and since the inner diameter of the transition hole 231d is larger than the inner diameter of the throttle hole 243, and meanwhile, after the throttle core 241 moves away from the transition hole 231d, the fluid in the throttle seat 231c can bypass the throttle hole 243 along the gap between the throttle core 241 and the inner wall of the throttle seat 231c and the through-flow hole of the throttle core 241 to flow to the hose, so that the flow rate of the regulating chamber 234 when the fluid is discharged can be larger than the flow rate of the regulating chamber 234 in the initial stage of the through-flow, and the emptying of the regulating chamber 234 can be accelerated.
In an embodiment not shown, the throttling assembly 24 further includes a throttling spring coupled to the throttling core 241 for moving the throttling core 241 away from the transition orifice 231d to avoid blocking of fluid flowing out of the transition orifice 231d by the throttling leakage preventing pad 244 after the initial stage of the through-flow is completed.
The second control valve 80 has various structural forms.
In some embodiments, a secondary side output chamber 82 and a secondary side inner guide port 83 communicating with the secondary side output chamber 82 are provided in the second control valve 80. The second control valve 80 is also provided with a secondary-side diaphragm 84 for abutting against the secondary-side inner guide port 83. The second control valve 80 is provided with a secondary side input chamber 85 on a side of the secondary side diaphragm 84 facing away from the secondary side inner guide port 83, the secondary side input chamber 85 being for communication with a fluid supply 900. The second control valve 80 is also provided with a secondary balance tube 86 having one end for communicating with the secondary output chamber 82. The secondary side switching trigger 81 is used for controlling the on-off of the other end of the secondary side balance tube 86 and the secondary side input cavity 85. The secondary side output chamber 82 is configured to communicate with the driven chamber 402. When the secondary side input chamber 85 communicates with the secondary side output chamber 82 through the secondary side inner pilot port 83, the second control valve 80 is in the on state. The second control valve 80 is in an off state when the secondary side input chamber 85 is isolated from the secondary side output chamber 82 by the secondary side diaphragm 84.
The working principle of the embodiment shown in fig. 2 and 6 is as follows:
in the initial state, the fluid in the drive chamber 401 is evacuated, and the active plate 431 is located deep into the main side case 41. While the slave chamber 402 is fully expanded and filled with fluid. The drain port 212e of the relief valve 20 communicates with the main flow. Fluid provided by fluid supply 900 enters primary side input chamber 55 but is blocked from primary side output chamber 52 by primary side septum 54. In addition, since the liquid level in the driven chamber 402 is high, the liquid level detector 45 floats up to act on the secondary side switching trigger 81, and the second control valve 80 is turned off, so that the fluid supply source 900 stops supplying fluid to the driven chamber 402.
The main side switching trigger 51 is operated such that the main side switching trigger 51 leaves the main side guide hole 56, and fluid in the main side input chamber 55 enters the main side output chamber 52 through the main side guide hole 56 and the main side balance tube 57 in order. After filling the main side output chamber 52 with fluid, the main side septum 54 opens from the main side inner lead 53, allowing fluid in the main side input chamber 55 to enter the main side output chamber 52 through the larger area of the main side inner lead 53. The spool assembly 22 of the relief valve 20 is switched to the first state by fluid from the primary side output chamber 52, placing the drive chamber 401 in communication with the fluid supply 900 and isolated from the driven chamber 402. The fluid provided by the fluid supply source 900 is injected into the driving cavity 401, so that the driving plate 431 is moved out of the main side housing 41, meanwhile, the driving plate 431 acts on the driven plate 433 through the transition rod 432, so that the driven plate 433 moves deep into the secondary side housing 42, the space of the driven cavity 402 is contracted, and the fluid reserved in the driven cavity 402 is discharged to the body 30 through the secondary side through hole 421.
When the space in the driven chamber 402 is contracted to a certain extent, the driven plate 433 abuts against the compression driver 44, and the main side switching trigger 51 is restored to the abutting state with the main side guide hole 56 by the compression driver 44. As the pressure of the fluid in the primary side output chamber 52 gradually decreases, the primary side diaphragm 54 returns to abutment with the primary side inner guide port 53 under its shape memory property, and the fluid supply source 900 is blocked from providing continued injection of the fluid into the drive chamber 401, the drive chamber 401 stops expanding due to the loss of the injection of the fluid, and the drainage of the driven chamber 402 ends. After the drainage of the driven chamber 402 is completed, the delay of the relief valve 20 is completed, and the drain port 212e is communicated with the main channel 212 b.
The piston assembly 43 moves toward the main side housing 41 by the reset driving member 46, the driven plate 433 withdraws from the sub-side housing 42, the water level in the driven chamber 402 drops, the liquid level detecting member 45 floats downward to leave the sub-side switching trigger 81 of the second control valve 80, the second control valve 80 is turned on, and the fluid supply source 900 supplies fluid to the driven chamber 402. After the reserve fluid in the slave chamber 402 increases, the gravity of the fluid in the slave chamber 402 compresses the drive chamber 401 via the piston assembly 43, and the fluid in the drive chamber 401 is discharged under pressure through the relief valve 20 to the slave chamber 402. In the embodiment shown in fig. 2, the return driver 46 is a tension spring and is connected between the driven plate 433 and the main side case 41.
When the driven plate 433 moves to the limit in the direction of exiting the secondary side housing 42, the driven chamber 402 cannot be further expanded, and the liquid level in the driven chamber 402 gradually rises until the liquid level detecting member 45 floats up to act on the secondary side switching trigger member 81, so that the second control valve 80 is turned off, and the fluid supply source 900 stops replenishing the fluid in the driven chamber 402.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (6)
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| CN202110825213.8A CN115680077B (en) | 2021-07-21 | 2021-07-21 | Drainage device and bathroom equipment |
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| CN202110825213.8A CN115680077B (en) | 2021-07-21 | 2021-07-21 | Drainage device and bathroom equipment |
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| CN115680077A CN115680077A (en) | 2023-02-03 |
| CN115680077B true CN115680077B (en) | 2025-10-31 |
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| CN215906911U (en) * | 2021-07-21 | 2022-02-25 | 深圳市恒致云科技有限公司 | Drainage device and bathroom equipment |
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| CN109487871A (en) * | 2017-09-12 | 2019-03-19 | 浙江科助达机械科技有限公司 | A kind of water-closet for bowl water tank and design method |
| CN209243848U (en) * | 2018-09-21 | 2019-08-13 | 厦门惠尔洁卫浴科技有限公司 | A flushing system for an intelligent toilet |
| JP7134407B2 (en) * | 2018-09-28 | 2022-09-12 | Toto株式会社 | flush toilet |
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2021
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN215906911U (en) * | 2021-07-21 | 2022-02-25 | 深圳市恒致云科技有限公司 | Drainage device and bathroom equipment |
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