CN121451663A - Toilet bowl - Google Patents

Abstract

A toilet includes: a toilet body, a water tank, a brush head assembly, and an air intake assembly; the brush head assembly is located at the brush head outlet and communicates with the water tank; the water tank has an air inlet, and the air intake assembly is located at the air inlet, having a first state and a second state that can be switched between each other; when the air intake assembly is in the first state, the air intake assembly connects the air inlet to the external atmosphere, so that the internal space of the water tank is connected to the external atmosphere; when the air intake assembly is in the second state, the air intake assembly isolates the air inlet from the external atmosphere, so that water in the water tank can overflow into the toilet bowl through the brush head assembly; and the positions of the end of the air intake assembly away from the water tank, the water outlet of the brush head assembly, and the corresponding positions of the working water level of the water tank are successively lower. This solution can reduce the number of openings on the toilet body; and even if the isolation effect of the air intake assembly is not good when it is in the second state, it can still ensure that water overflows from the brush head assembly into the toilet bowl.

Description

Toilet bowl

Technical Field

The application relates to the technical field of bathroom equipment, in particular to a closestool.

Background

In the related art, a closestool with a water tank is provided with an overflow pipe, an overflow hole is formed in the closestool body, the overflow pipe is communicated with the water tank and the overflow hole, and water overflowed from the water tank overflows into a urinal through the overflow pipe and the overflow hole. However, this solution requires additional openings in the toilet body, which is usually a ceramic structure, which is not easy to open and where the openings are easily soiled and not easy to clean.

Disclosure of Invention

The embodiment of the application provides a closestool, which can reduce the number of holes on a closestool body, simplify the structure of the closestool body and facilitate the cleaning of the closestool body.

The embodiment of the application provides a wall-mounted closestool, which comprises a closestool body, a waterway module and a water tank, wherein a urinal is arranged on the inner wall surface of the urinal, a brush ring spray head assembly and an air inlet assembly are arranged on the inner wall surface of the urinal, the brush ring spray head assembly is arranged at the brush ring spray head assembly and communicated with the water tank, the water tank is provided with an air inlet, the air inlet assembly is arranged at the air inlet and is provided with a first state and a second state which can be mutually switched, when the air inlet assembly is in the first state, the air inlet assembly is communicated with the air inlet and the external atmosphere, so that the inner space of the water tank is communicated with the external atmosphere, when the air inlet assembly is in the second state, the air inlet assembly is separated from the external atmosphere, so that water in the water tank can overflow into the urinal through the brush ring spray head assembly, and the position of the air inlet assembly, which is far away from one end of the water tank, the position of the water outlet of the brush ring spray head assembly and the working water level of the water tank, are sequentially lowered.

According to the toilet provided by the embodiment of the application, the overflow pipe is omitted, and the overflow pipe is utilized to discharge the overflowed water of the water tank into the urinal, so that the overflow hole on the toilet body can be omitted, the number of the holes of the toilet body is reduced, the structure of the toilet body can be simplified, the cleaning of the toilet body is facilitated, and the attractive appearance of the toilet is improved.

When the air inlet assembly is in the first state, the space inside the water tank can be communicated with the external atmospheric environment, on one hand, air in the water tank can be discharged, water can be conveniently fed into the water tank, the water level in the water tank is not limited, on the other hand, the external air can be introduced into the water tank, negative pressure in the water tank can be avoided, and water in the water tank can be conveniently pumped out.

And the position of one end of the air inlet component, which is far away from the water tank, the position of the water outlet port of the brush ring spray head component and the position corresponding to the working water level of the water tank are sequentially lowered. Therefore, even if the partition effect of the air inlet assembly is poor in the second state, water flow can still be guaranteed to overflow from the brush ring spray head assembly to the urinal, and the water cannot overflow to the outside from one end of the air inlet assembly, which is far away from the water tank, so that adverse effects of overflowed water on structures around the air inlet assembly are avoided.

In some embodiments of the application, the air inlet assembly comprises an air inlet pipe connected with the water tank, a movable cavity communicated with the air inlet and an avoidance opening communicated with the movable cavity are arranged in the air inlet pipe, and a movable piece is movably arranged in the movable cavity and can move between a first position and a second position relative to the air inlet pipe, wherein when the air inlet assembly is in a first state, the movable piece is positioned in the first position and opens the avoidance opening to be communicated with the internal space of the water tank and the external atmosphere, and when the air inlet assembly is in a second state, the movable piece is positioned in the second position and closes the avoidance opening to be separated from the internal space of the water tank and the external atmosphere.

In some embodiments of the application, the air intake assembly further comprises a gasket disposed within the air intake tube and provided with the escape opening, wherein when the movable member is in the first position, the movable member is separated from the gasket so that the escape opening is opened, and when the movable member is in the second position, the movable member is in abutting engagement with the gasket so that the escape opening is closed.

In some embodiments of the application, the air inlet is arranged at the top of the water tank, the air inlet pipe extends in the vertical direction, the first position is positioned below the second position, and the movable piece is arranged to float between the first position and the second position relative to the air inlet pipe under the action of gravity and buoyancy.

In some embodiments of the present application, the movable member is a floating ball, an air passing gap is formed between the floating ball and a cavity wall of the movable cavity, and/or the air inlet assembly further includes a support, the support penetrates through the air inlet and is connected with one end of the air inlet pipe, which faces the water tank, in a sealing manner, the support is provided with an air passing channel communicated with the movable cavity and the air inlet, and when the movable member is located at the first position, the movable member is supported on the support.

In some embodiments of the present application, when the movable member is a floating ball and an air passing gap is formed between the floating ball and a cavity wall of the movable cavity, a plurality of guide ribs are arranged on a side wall of the movable cavity at intervals along the circumferential direction of the air inlet pipe, the guide ribs are used for guiding floating of the floating ball, and spaces between adjacent guide ribs form the air passing gap, and/or when the air inlet assembly further comprises a bracket, the bracket comprises a sleeve, a plurality of support ribs connected with an inner side wall of the sleeve and arranged at intervals along the circumferential direction of the sleeve, and support columns connected with the support ribs, the support columns are used for supporting the movable member, and the air passing channel comprises gaps between the adjacent support ribs.

In some embodiments of the application, the air inlet pipe comprises an air inlet seat and an extension pipe, the air inlet seat is provided with the movable cavity, the air inlet seat is fixedly connected with the water tank through a fastener, the extension pipe is connected with the upper end of the air inlet seat, a part of the extension pipe is inserted into the air inlet seat and is abutted against the sealing gasket, an annular limiting flange is arranged in the air inlet seat, the sealing gasket is provided with an annular limiting groove, and the limiting flange is embedded into the limiting groove.

In some embodiments of the present application, a position of the air inlet pipe away from one end of the water tank, a position of the avoidance opening, and a position corresponding to a working water level of the water tank are sequentially lowered.

In some embodiments of the application, the inner wall surface of the urinal is provided with a whirling flow guide surface and a drain outlet, the whirling flow guide surface is arranged to guide water flow sprayed out from the brush ring water outlet to flow to the drain outlet so as to discharge dirt in the urinal, the waterway module further comprises a water pump, a water inlet port and a water outlet port of the water pump are respectively communicated with the water tank and the brush ring spray head assembly, and the water pump in the water tank is arranged to be sent to the brush ring spray head assembly so as to enable the water to flow through the brush ring water outlet and be sprayed into the urinal.

In some embodiments of the application, the inner wall surface of the urinal comprises a brush ring water guide curved surface, an overflow curved surface and a water seal curved surface which are sequentially connected from top to bottom, the sewage drain is arranged at the bottom of the water seal curved surface, the whirl water guide curved surface comprises the brush ring water guide curved surface, the brush ring water outlet is positioned at the rear side of the brush ring water guide curved surface, the front end of the brush ring water guide curved surface is lower than the brush ring water outlet, the overflow curved surface and the water seal curved surface are in mirror symmetry structures, the symmetry surfaces of the overflow curved surface and the water seal curved surface are coplanar, the symmetry surfaces are vertical surfaces extending along the front-back direction, and the inclination degree of the front part of the water seal curved surface relative to the horizontal plane is larger than that of the front part of the overflow curved surface.

In some embodiments of the application, the toilet bowl body is provided with a brush ring mounting hole communicated with the brush ring water outlet, the brush ring spray head assembly comprises a spray head body, a sealing gasket, a connecting gasket and a nut, the spray head body is inserted into the brush ring mounting hole and communicated with the water pump and the brush ring water outlet, the sealing gasket is positioned in the brush ring mounting hole and sleeved outside the spray head body and can seal a gap between the spray head body and the wall of the brush ring mounting hole, the connecting gasket is positioned outside the brush ring mounting hole and abuts against the toilet bowl body and is clamped between the nut and the toilet bowl body, and the nut is sleeved outside the spray head body and is in threaded connection with the spray head body so that the spray head body is fixed on the toilet bowl body.

Additional features and advantages of the application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application. Other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

The accompanying drawings are included to provide an understanding of the principles of the application, and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain, without limitation, the principles of the application.

FIG. 1 is a schematic view of a partial perspective view of a wall-mounted toilet according to some embodiments of the present application (with a toilet lid device omitted);

FIG. 2 is an exploded view of the wall-mounted toilet of FIG. 1;

FIG. 3 is a schematic view of a partially exploded construction of a wall-mounted toilet according to some embodiments of the present application;

fig. 4 is an exploded view of a waterway module according to some embodiments of the present application;

fig. 5 is a schematic perspective view of a waterway module according to some embodiments of the present application;

FIG. 6 is a schematic view of a partially cut-away configuration of a wall-mounted toilet according to some embodiments of the present application;

fig. 7 is a schematic diagram illustrating an operation principle of a wall-mounted toilet according to some embodiments of the present application;

FIG. 8 is a schematic view of a partially cut-away configuration of a wall-mounted toilet according to some embodiments of the present application;

FIG. 9A is a schematic cross-sectional view of a first state of an air intake assembly according to some embodiments of the present application;

FIG. 9B is a schematic cross-sectional view of a second state of an air intake assembly according to some embodiments of the present application;

FIG. 10 is a schematic view of an exploded view of an air intake assembly according to some embodiments of the present application;

FIG. 11A is a schematic cross-sectional view of a first state of a fluid level sensor provided in some embodiments of the present application;

FIG. 11B is a schematic cross-sectional view of a second state of the fluid level sensor provided by some embodiments of the present application;

FIG. 12 is a schematic illustration of an exploded view of a brush ring spray head assembly according to some embodiments of the present disclosure;

FIG. 13 is a schematic view of a partial top view of a wall-mounted toilet according to some embodiments of the present application, wherein arrows show water flow direction;

FIG. 14 is a schematic view of a partially cut-away construction of a wall-mounted toilet according to some embodiments of the present application, wherein arrows show water flow direction;

Fig. 15 is a schematic front view of a brush ring nozzle according to some embodiments of the present disclosure.

In the drawings, the list of components represented by the various numbers is as follows:

1. A wall hanging bracket;

2. Waterway module, 21, water tank, 210, avoiding space, 211, connecting flange, 212, fastener, 213, water pumping port, 214, air inlet, 215, water inlet, 22, water pump, 23, brush ring spray head assembly, 231, spray head body, 232, sealing gasket, 233, connecting gasket, 234, nut, 235, hanging ear, 236, stop part, 24, water pumping pipe, 241, water pumping port, 201, liquid level sensor, 2011, float, 2012, first connecting lug, 401, water pump fixing plate; 501, an air inlet component 511, a movable piece 512, a sealing gasket 5121, an avoidance opening 5122, a limiting groove 513, an air inlet pipe 5131, an air inlet seat 5132, an extension pipe 5133, a limiting flange 5134, a second connecting lug 514, a movable cavity 5141, a guide rib 5142, an air passing gap 515, a support 5151, a limiting flange 5152, a sleeve 5153, a support rib 5154, a support column 5155, an air passing channel 516, a sealing ring 701, an air inlet component 711, a ball valve 712, an electromagnetic valve water inlet pipe 713, an anti-siphon device 714, an electromagnetic valve 715, a water tank water inlet pipe 716, a flow limiting piece 901 and a brush ring water pipe;

3. The toilet bowl comprises a toilet bowl body, 31, a urinal, 311, a brush ring water outlet, 312, a spin flow guide surface, 312a, the front end of a brush ring water guide curved surface, 312b, the front part of an overflow curved surface, 312c, the front part of a water seal curved surface, 313, a sewage drain, 3121, a brush ring water guide curved surface, 3122, an overflow curved surface, 3123, a water seal curved surface, 32, a sewage drain, 33, a connecting part, 34 brush ring mounting holes and 35 mounting cavities.

Detailed Description

The principles and features of the present application are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the application and are not to be construed as limiting the scope of the application.

As shown in fig. 1, an embodiment of the present application provides a toilet including a toilet body 3 and a waterway module 2.

The toilet body 3 is provided with a urinal 31 as shown in fig. 2. The inner wall surface of the urinal 31 is provided with a brush ring water outlet 311 as shown in fig. 13 and 14.

Referring to fig. 2 to 4 together, the waterway module 2 includes a water tank 21, a brush ring nozzle assembly 23, and an air intake assembly 501. The brush ring spray head assembly 23 is arranged at the brush ring water outlet 311 and is communicated with the water tank 21. The water tank 21 is provided with an air inlet 214 (as shown in fig. 4), and an air intake assembly 501 is provided at the air inlet 214 and has a first state and a second state that can be switched to each other.

When the air intake assembly 501 is in the first state (as shown in fig. 9A), the air intake assembly 501 communicates the air intake 214 with the external atmosphere, so that the internal space of the water tank 21 communicates with the external atmosphere. When the air intake assembly 501 is in the second state (as shown in fig. 9B), the air intake assembly 501 blocks the air intake 214 from the outside atmosphere, so that water in the tank 21 can overflow into the bowl 31 through the brush ring spray head assembly 23. As shown in fig. 8, the position a of the air intake assembly 501 at the end far from the water tank 21, the position b of the water outlet port of the brush ring head assembly 23, and the position d corresponding to the operating water level of the water tank 21 are sequentially lowered. The operating water level of the water tank 21 refers to the rated water level of the water tank 21, and is also the highest water level that can be detected by the level sensor 201 for detecting the water tank level. The working water level of the water tank 21 is lower than the highest level of the water tank 21 (in other words, when the water tank 21 is filled to the working water level, the water tank 21 is not filled).

According to the toilet provided by the embodiment of the application, the overflow pipe is omitted, and the water overflowed from the water tank 21 is discharged into the urinal 31 by utilizing the brush ring spray head assembly 23, so that overflow holes on the toilet body 3 can be omitted, the number of holes of the toilet body 3 is reduced, the structure of the toilet body 3 can be simplified, the toilet body 3 is convenient to clean, and the attractive appearance of the toilet is improved.

The air inlet assembly 501 is arranged to enable the space inside the water tank 21 to be communicated with the external atmosphere, so that on one hand, air in the water tank 21 can be discharged, water can be conveniently fed into the water tank 21, the water level in the water tank 21 is not limited, on the other hand, external air can be introduced into the water tank 21, negative pressure in the water tank 21 can be avoided, and water in the water tank 21 can be conveniently pumped out.

The position a of the air intake assembly 501 at the end far from the water tank 21, the position b of the water outlet port of the brush ring head assembly 23, and the position d corresponding to the working water level of the water tank 21 are lowered in order. In this way, even if the blocking effect of the air intake assembly 501 is poor in the second state, water can still flow from the brush ring nozzle assembly 23 to the urinal 31, so that the water cannot overflow from the end of the air intake assembly 501 far from the water tank 21 to the outside, and adverse effects of overflowed water on the structure around the air intake assembly 501 can be avoided.

In some embodiments, as shown in FIGS. 9A, 9B and 10, air intake assembly 501 includes an air intake conduit 513 and a moveable member 511. The air inlet pipe 513 is connected with the water tank 21, and a movable cavity 514 communicated with the air inlet 214 and an avoidance opening 5121 communicated with the movable cavity 514 are arranged in the air inlet pipe 513. The movable member 511 is movably disposed within the movable chamber 514 and is movable between a first position and a second position relative to the air inlet conduit 513.

When the air intake assembly 501 is in the first state, the movable member 511 is located at the first position and opens the escape opening 5121 to communicate the internal space of the water tank 21 with the external atmosphere, as shown in fig. 9A. When the air intake assembly 501 is in the second state, the movable member 511 is located at the second position and closes the escape opening 5121 to isolate the internal space of the water tank 21 from the external atmosphere, as shown in fig. 9B.

The end of the air inlet pipe 513 away from the water tank 21 is the end of the air inlet assembly 501 away from the water tank 21. The air inlet pipe 513 provides a channel for communication between the water tank 21 and the external atmosphere, and the air inlet pipe 513 is an installation carrier of the movable part 511 and can play a limiting role on the movable part 511. The movable member 511 corresponds to an on-off valve, and controls the opening and closing of the escape opening 5121 by switching the position, thereby controlling the on-off of the internal space of the water tank 21 and the external atmosphere.

In some embodiments, as shown in fig. 9A, 9B and 10, the air intake assembly 501 further includes a gasket 512 disposed within the air intake pipe 513 and provided with a relief opening 5121. When the movable member 511 is located at the first position, the movable member 511 is separated from the gasket 512, so that the escape opening 5121 is opened, as shown in fig. 9A. When the movable member 511 is in the second position, the movable member 511 is in abutting engagement with the gasket 512, so that the escape opening 5121 is closed, as shown in fig. 9B.

The sealing pad 512 can improve the closing reliability of the dodging opening 5121 when the movable member 511 is located at the second position, so as to reduce the risk of the dodging opening 5121 being not tightly closed.

In other embodiments, the air intake assembly 501 may not include the gasket 512, and the avoiding opening 5121 is provided on the air intake pipe 513 (for example, an annular protrusion may be provided on an inner wall surface of the air intake pipe 513 to surround the avoiding opening 5121 in the air intake pipe 513).

In some embodiments, as shown in fig. 4, the air inlet 214 is provided at the top of the water tank 21. The air intake duct 513 extends in the vertical direction, and as shown in fig. 8, the first position is located on the lower side of the second position. A gasket 512 is located at the upper port of the movable chamber 514. This is advantageous in simplifying the structure of the air intake duct 513 and also in shortening the length of the air intake duct 513.

The moveable member 511 is arranged to float relative to the air inlet conduit 513 between a first position and a second position under the influence of gravity and buoyancy. Thus, the movable member 511 can be automatically switched between the first position and the second position according to the water state in the water tank 21 without providing additional driving members, thereby simplifying the structure of the air intake assembly 501 and being beneficial to reducing the cost.

In other embodiments, the air inlet pipe 513 may also be disposed obliquely.

In some embodiments, as shown in fig. 1 and 2, the toilet further includes a wall-mounted bracket 1, where the wall-mounted bracket 1 is fixedly connected to the toilet body 3 and can be fixed to a wall body for supporting and fixing the toilet body 3. Therefore, the toilet is a wall-mounted toilet.

In other embodiments, the toilet may not include the wall-mounted bracket 1, and the toilet may be a floor-type toilet.

In some embodiments, the inner wall surface of the urinal is provided with a swirl diversion surface 312 and a drain 313, wherein the swirl diversion surface 312 is configured to direct the water flow ejected from the brush ring water outlet 311 to the drain 313 to drain the dirt in the urinal 31. The water circuit module 2 is shown in fig. 2 and 4 to include a water tank 21, a water pump 22, and a brush ring spray head assembly 23 disposed at a brush ring water outlet 311. The water inlet of the water pump 22 and the water outlet of the water pump 22 are respectively communicated with the water tank 21 and the brush ring nozzle assembly 23, and are configured to pump water in the water tank 21 to the brush ring nozzle assembly 23 so that the water flows through the brush ring water outlet 311 and is injected into the urinal 31.

Because the water pump 22 can provide stable water pressure, water in the water tank 21 forms high-speed water flow after being ejected from the brush ring water outlet 311, rotates along the circumferential direction of the inner wall surface of the urinal 31 and falls down to the depth of the urinal 31, strong vortex is formed, dirt in the urinal 31 is flushed into the sewage outlet 313 to be discharged, a good cleaning effect is achieved on the inner wall surface of the urinal 31, and the effect of whirling flushing as shown in fig. 13 and 14 is achieved.

In this way, the water tank 21 does not need to be arranged at a higher position, and the water for household use does not need to have higher water inlet pressure, so that zero-pressure flushing (namely, no requirement on the water inlet pressure of the water for household use) is realized, and the popularization and the application of the rotary flushing type closestool are facilitated.

In some embodiments, the toilet body 3 may be made of ceramic or metal material by integral molding, and the type of the water tank 21 may include a wall-in water tank or a non-wall-in water tank. The wall-mounted water tank can be fixed on the wall-mounted bracket 1 during installation, and then the wall-mounted bracket 1 and the water tank 21 are embedded into a wall body. The non-in-wall tank may be hidden within the toilet body 3.

In some embodiments, as shown in fig. 3, the toilet body 3 is further provided with a mounting chamber 35, and the water tank 21 is located in the mounting chamber 35. This makes it possible to fully utilize the space inside the toilet body 3 and simplify the installation and maintenance operations of the water tank 21.

In some embodiments, as shown in fig. 2 and 3, the mounting chamber 35 is located on the underside of the bowl 31 and the tank 21 is disposed around the bowl 31. This is advantageous in improving the space utilization of the toilet body 3 and in downsizing the toilet.

In some embodiments, as shown in fig. 3, the water tank 21 is provided with a relief space 210. The toilet body 3 is provided with a drain pipe 32 communicating with the drain, and as shown in fig. 14, a part of the drain pipe 32 is located in the avoidance space 210. This avoids the need for additional space to accommodate the drain 32, which is advantageous for miniaturization of the toilet.

In some embodiments, as shown in fig. 3, the water tank 21 is provided with a connection flange 211 extending into the avoidance space 210, the toilet body 3 is provided with a connection portion 33, the connection portion 33 is provided at the bottom of the outer side wall of the urinal 31, and the connection flange 211 and the connection portion 33 are fixedly connected by a fastener 212, so that the water tank 21 is fixed to the toilet body 3. The fastener 212 has high connection strength and firm fixation, and is beneficial to improving the connection reliability of the water tank 21 and the toilet body 3. In addition, after the water tank 21 and the closestool body 3 are combined into a whole, the water tank can be fixed on the wall-mounted bracket 1, and the water tank can be mounted and fixed during production and assembly, so that the mounting operation is simplified.

In some embodiments, as shown in fig. 3, the connecting flange 211 is located at the bottom of the water tank 21, so that the structure of the water tank 21 is relatively regular, and the processing and forming are convenient. The connection portion 33 extends in the height direction of the water tank 21 to form a column structure, and is conveniently inserted into the escape space 210 to be connected with the connection flange 211.

In some embodiments, the water tank 21 has a bottom plate, and the connecting flange 211 is a portion of the bottom plate located in the avoidance space 210, so that the bottom of the toilet bowl is smooth and beautiful.

In some embodiments, as shown in fig. 3 and 4, the water tank 21 is provided with a water pumping port 213, the waterway module 2 further includes a water pumping pipe 24, the water pumping pipe 24 is penetrated through the water pumping port 213, a partial pipe section of the water pumping pipe 24 is located in the water tank 21 and extends along a vertical direction, a port of the partial pipe section away from the water pump 22 forms a water pumping port 241 of the water pumping pipe 24, and the water pumping port 241 faces the inner bottom wall of the water tank 21. This facilitates the full extraction of the water in the water tank 21, avoiding the difficulty of extracting and utilizing the water of a low water level.

The water pump 22 may be mounted at a position near the water suction port 213 at the bottom of the water tank 21 by a water pump fixing plate 401 shown in fig. 4 and 5.

In some embodiments, as shown in FIG. 6, the spacing h between the pumping port 241 and the inner bottom wall of the tank 21 satisfies 5 mm≤h≤30 mm. Thus, the water pumping port 241 is prevented from being blocked by dirt, water stain and other substances at the bottom of the water tank 21 due to too small h, and the water in the water tank 21 is prevented from being difficult to be pumped out and utilized due to too large h.

Of course, h is not limited to the above range and may be adjusted as necessary.

In some embodiments, the wall-hung toilet further comprises a control device, and the control logic and waterway relationship is shown in fig. 7. As shown in fig. 3 and 4, the waterway module 2 further includes a water intake assembly 701 and a level sensor 201. The inlet assembly 701 includes a solenoid valve 714 and a tank inlet pipe 715. The water tank 21 is provided with a water inlet 215, one end of a water tank water inlet pipe 715 is communicated with the water inlet 215, and the other end of the water tank water inlet pipe 715 is communicated with an electromagnetic valve 714. The liquid level sensor 201 is mounted to the water tank 21 and is configured to detect a liquid level in the water tank 21. The control device is electrically connected to the liquid level sensor 201 and the solenoid valve 714, and is configured to control the opening and closing of the solenoid valve 714 based on the detection result of the liquid level sensor 201. Thus, the automatic control of water inflow of the water tank 21 can be realized, manual control of a user is not needed, and the intelligent degree of a product is improved.

In some embodiments, as shown in fig. 11A, 11B, the liquid level sensor 201 is a float type liquid level sensor. When the water level in the water tank 21 is at a low level (as shown in fig. 11A), the float 2011 falls to a low position by gravity. When the water level in the water tank 21 is at a high level (as shown in fig. 11B), the float 2011 floats up to a high position by the buoyancy.

The liquid level sensor 201 as shown in fig. 11A, 11B may be provided with a plurality of first connection lugs 2012, and each of the first connection lugs 2012 may be provided with a fastener mounting hole through which a fastener is inserted and fixedly connected with the water tank 21, thereby achieving connection fixation of the liquid level sensor 201 with the water tank 21.

In some embodiments, as shown in fig. 4, the water intake assembly 701 further includes at least one of a ball valve 711, a solenoid valve water intake pipe 712, and an anti-siphon device 713.

Wherein, ball valve 711 is arranged to communicate with an external water source (such as municipal tap water), and a flow limiting piece 716 (shown in fig. 4) is arranged in ball valve 711 to limit the water pressure and flow of the municipal waterway.

A solenoid inlet pipe 712 is provided in communication with an inlet of the solenoid valve 714, and the solenoid valve 714 may be connected to the ball valve 711 by the solenoid inlet pipe 712. This facilitates proper placement of the solenoid valve 714 as desired, without being limited by the position of the user's home water inlet valve.

The anti-siphon device 713 is located at an upstream side of the solenoid valve 714 and is connected to the solenoid valve 714 to prevent the water in the water tank 21 from flowing backward through the solenoid valve 714, thereby preventing the water in the water tank 21 from flowing backward to the user's home waterway to pollute the user's home waterway. The anti-siphon device 713 may be, but is not limited to, a vacuum interrupter, check valve, or the like.

In some embodiments, in the standby state, the movable member 511 may stay in the first position under the action of gravity. When the system receives a flushing instruction, the movable piece 511 can stay at the first position under the action of gravity, the water pump 22 operates to pump out water in the water tank 21, and at the moment, external air can enter the water tank 21 through the avoidance opening 5121, the movable cavity 514 and the air inlet 214. When the water tank 21 is filled with water, the water pump 22 is turned off, the movable member 511 can stay at the first position under the action of gravity, and the air in the water tank 21 can be discharged to the external environment through the air inlet 214, the movable cavity 514 and the avoiding opening 5121. When the liquid level sensor 201 fails or the electromagnetic valve 714 fails, and the water in the water tank 21 is full and still continuously flows into the water tank, the water in the water tank 21 can enter the movable cavity through the air inlet 214, so that the movable piece 511 rises to the second position under the action of the buoyancy, the avoiding opening 5121 is closed at the moment, the water in the water tank 21 cannot overflow through the air inlet assembly 501, and the water is finally conveyed to the brush ring spray head assembly 23 through the water suction pipe 24 and the water pump 22 and discharged into the urinal 31.

In some embodiments, as shown in fig. 9B and 10, the air inlet pipe 513 includes an air inlet seat 5131 and an extension pipe 5132, the air inlet seat 5131 is provided with a movable cavity 514, the air inlet seat 5131 is fixedly connected with the water tank 21 through a fastener 212, and the extension pipe 5132 is connected with the upper end of the air inlet seat 5131. The extension pipe 5132 can increase the height of the air inlet pipe 513, which is advantageous for improving the water overflowing preventing effect. The extension tube 5132 is partially inserted into the air inlet seat 5131 and abuts against the gasket 512.

The air inlet seat 5131 may be provided with a plurality of second connection lugs 5134 (as shown in fig. 10), the second connection lugs 5134 are provided with connection holes, and the fastener 212 is inserted into the connection holes and fixedly connected with the water tank 21. The extension tube 5132 and the air inlet seat 5131 may be connected by screw. For example, as shown in fig. 10, an internal thread is provided in the intake housing 5131, an external thread is provided in the extension pipe 5132, and an end portion of the extension pipe 5132 is inserted into the intake housing 5131 and is screwed with the intake housing 5131.

An annular limiting flange 5133 (as shown in fig. 9B) is disposed in the air inlet seat 5131, and an annular limiting groove 5122 (as shown in fig. 10) is disposed in the sealing pad 512, wherein the limiting flange 5133 is embedded in the limiting groove 5122 to prevent the sealing pad 512 from axially moving in the air inlet seat 5131. The portion of the extension tube 5132 inserted into the air inlet seat 5131 can also abut against the sealing pad 512, so that the sealing pad 512 can be effectively prevented from being ejected out of the air inlet tube under the action of the floating ball and the water pressure, and the position stability of the sealing pad 512 can be further improved.

In some embodiments, the water tank 21 may have a generally U-shaped cross-section, as shown in FIG. 3. The liquid level sensor 201 and the air intake assembly 501 may be respectively fixed at both ends of the water tank 21 extending in the U-shape direction, as shown in fig. 5, and the installation space in the toilet body 3 may be reasonably utilized.

In some embodiments, as shown in fig. 10, the movable member 511 is a floating ball, which has a simple structure and can rotate to automatically adjust the position, so that interference and jamming are not easy to occur. An air gap 5142 is formed between the floating ball and the cavity wall of the movable cavity 514, so that the movable cavity 514 is not completely separated by the floating ball, and the avoiding opening 5121 and the air inlet 214 cannot be communicated.

In some embodiments, as shown in fig. 9B and 10, the air intake assembly 501 further includes a support 515, where the support 515 is penetrating the air intake 214 and is connected with the air intake 513 in a sealing manner towards one end of the water tank 21, so that the air intake assembly 501 can be connected with the water tank 21 in a sealing manner, and water in the water tank 21 is prevented from leaking out through a gap between the support 515 and the water tank 21.

As shown in fig. 10, the holder 515 is provided with an air passage 5155 communicating with the movable chamber 514 and the air inlet 214. When the float is in the first position, the float is supported by the bracket 515. Thus, when the floating ball is located at the first position, the air inlet 214, the air passing channel 5155, the air passing gap 5142 and the avoiding opening 5121 can be sequentially communicated, so that effective communication between the inner space of the water tank 21 and the external atmospheric environment is realized.

In some embodiments, a sealing ring 516 is disposed between the support 515 and the air inlet seat 5131, as shown in fig. 9B and 10, the support 515 is provided with a limiting flange 5151, and the limiting flange 5151 is located outside the water tank 21 and is pressed against the sealing ring 516. This can improve the positional stability of the seal 516.

In some embodiments, as shown in fig. 10, the side wall of the movable cavity 514 is provided with a plurality of guide ribs 5141 spaced along the circumferential direction of the air inlet pipe 513, the guide ribs 5141 are used for guiding the floating of the floating ball, and the space between adjacent guide ribs 5141 forms an air gap 5142. Therefore, on one hand, the use reliability of the floating ball can be improved, the floating ball can stay at the first position or the second position stably, the influence on the use reliability of the air inlet assembly 501 caused by the deviation of the position of the floating ball is prevented, and on the other hand, the influence on the use reliability of the air inlet assembly 501 caused by the blocking of the air gap 5142 by the floating ball can be avoided.

In some embodiments, as shown in fig. 9B and 10, the bracket 515 includes a sleeve 5152, a plurality of support ribs 5153 connected to an inner sidewall of the sleeve 5152 and spaced apart along a circumference of the sleeve 5152, and support columns 5154 connected to the plurality of support ribs 5153, the support columns 5154 for supporting the floating balls, and the gas passing passages 5155 include gaps between adjacent support ribs 5153.

Therefore, on one hand, the use reliability of the floating ball can be improved, the floating ball can stay at the first position stably, the influence on the use reliability of the air inlet assembly 501 caused by the deviation of the position of the floating ball is prevented, and on the other hand, the influence on the use reliability of the air inlet assembly 501 caused by the blocking of the air passage 5155 by the floating ball can be avoided.

In some embodiments, the support columns 5154 are provided in a hollow structure. In this way, water in the water tank 21 can also enter the air inlet pipe 513 through the inner space of the support column 5154, so that the water tank 21 and the air inlet pipe 513 are kept in a smooth communication relationship.

In some embodiments, as shown in fig. 8, a position a of the air inlet pipe 513 away from one end of the water tank 21, a position c of the avoidance opening 5121, and a position d corresponding to the operating water level of the water tank 21 are sequentially lowered. Therefore, normally, the movable member 511 is located at the first position, and the escape opening 5121 is in a normally open state, so that the internal space of the water tank 21 is kept in a communicating state with the external atmosphere. Only if the level sensor 201 fails or the solenoid valve 714 fails, resulting in the tank 21 being filled with water and still continuing to feed water, the bypass opening 5121 is closed by the movable member 511.

In some embodiments, the float 2011 is positioned below the liquid level sensor 201 as shown in fig. 11A, and the water tank 21 is at a low liquid level, and the float 2011 of the liquid level sensor 201 is raised to the highest corresponding water level as shown in fig. 11B, and the water tank 21 is at the working water level, i.e., the second position (position d shown in fig. 8) as mentioned in the above embodiments. The working water level of the water tank 21 is lower than the highest level of the water tank 21.

In some embodiments, as shown in fig. 3 and 6, the toilet body 3 is provided with a brush ring mounting hole 34 communicating with a brush ring water outlet 311.

Fig. 12 illustrates the structure of brush ring spray head assembly 23 of some embodiments, including spray head body 231, sealing gasket 232, connecting gasket 233, and nut 234. The nozzle body 231 is inserted into the brush ring mounting hole 34 and is communicated with the water pump 22 and the brush ring water outlet 311. The sealing gasket 232 is located in the brush ring mounting hole 34 and sleeved on the outer side of the spray head body 231, and can seal a gap between the spray head body 231 and the wall of the brush ring mounting hole 34 so as to prevent water leakage at the brush ring mounting hole 34. The connection pad 233 is located outside the brush ring mounting hole 34 and abuts against the toilet body 3, and is sandwiched between the nut 234 and the toilet body 3. The nut 234 is sleeved on the outer side of the spray head body 231 and is in threaded connection with the spray head body 231, so that the spray head body 231 is fixed on the toilet body 3. When the nut 234 is tightened, the gasket 232 is tightened to effect a seal.

The brush ring mounting hole 34 may extend in a vertical direction, and the brush ring water outlet 311 may be substantially on a vertical plane, and the brush ring mounting hole 34 may communicate with the brush ring water outlet 311 through a flow passage extending in a substantially horizontal direction.

In some embodiments, as shown in fig. 12 and 15, the outer side wall of the spray head body 231 is provided with a hanging tab 235, and the diameter of the lower end opening of the brush ring mounting hole 34 is smaller than the width W of the hanging tab 235, so that the spray head body 231 can be obliquely inserted into the mounting hole and the spray head body 231 is restricted from being separated from the mounting hole. The hanger 235 may include two symmetrical stoppers 236 (as shown in fig. 12), each stopper 236 has a substantially isosceles triangle shape, and a distance between the distal ends of the two stoppers 236 is a width W of the hanger 235.

Like this, after the upper portion of shower nozzle body 231 inserts the brush circle mounting hole 34 to one side, after the pine behind the hand, receive the restriction of hangers 235, the shower nozzle body 231 can not deviate from brush circle mounting hole 34 voluntarily under the action of gravity, consequently the workman need not to hold shower nozzle body 231, can pull down shower nozzle body 231 screw up nut 234 can, has reduced the installation degree of difficulty of brush circle shower nozzle assembly 23 like this.

The operation principle of the above embodiment is as shown in fig. 7 and 8, in the standby state, the solenoid valve 714 is in the closed state, and the liquid level sensor 201 is at the high liquid level (as in position d in fig. 8), and the water pump 22 is not operated. When the control device receives a flushing instruction, the water pump 22 starts to run, at this moment, the floating ball of the air inlet assembly 501 falls at the bottom of the air inlet pipe 513 due to gravity, at this moment, the floating ball and the sealing gasket 512 have a gap, air enters from the gap, at this moment, water in the water tank 21 is pumped to the brush ring spray head assembly 23 by the water pump 22, the brush ring spray head assembly 23 is connected with the brush ring water outlet 311 of the toilet body 3, the water level of the water tank 21 is continuously reduced, the float of the liquid level sensor 201 is in a low liquid level area under the influence of the water level reduction, the liquid level sensor 201 outputs a signal to the control device, the control device starts the electromagnetic valve 714 to feed water to the water tank 21 after receiving the low liquid level instruction of the water tank 21, when the water level of the water tank 21 is increased, the float of the liquid level sensor 201 floats to be in a high liquid level state, the liquid level sensor 201 outputs a signal to the control device, the control device closes the electromagnetic valve 714 after receiving the high liquid level instruction of the water tank 21, and the water tank 21 stops feeding.

When the liquid level sensor 201 fails or the electromagnetic valve 714 fails, the liquid level sensor 201 is still continuously fed with water under the condition of high liquid level, at this time, the water level in the water tank 21 continuously rises from the working water level position d, and firstly, the water level reaches the air inlet sealing position (i.e. the position c for avoiding the opening 5121), and under the action of water buoyancy, the floating ball floats and props against the sealing gasket 512, so that the avoiding opening 5121 is sealed. The water is continuously fed into the water tank 21, and finally discharged into the urinal 31 through the water suction pipe 24, the water pump 22, the brush ring water delivery pipe 901 and the brush ring spray head assembly 23 by the brush ring water outlet 311.

In some embodiments, as shown in fig. 13 and 14, the inner wall surface of the urinal 31 includes a brush ring water guiding curved surface 3121, an overflow curved surface 3122 and a water sealing curved surface 3123 which are sequentially connected from top to bottom, and the drain 313 is disposed at the bottom of the water sealing curved surface 3123. The brush ring water guide curved surface 3121 may configure a brush ring water channel such that water sprayed from the brush ring water outlet 311 rotates along the circumferential direction of the urinal 31. The flow-through curved surface 3122 may direct the brush grommet water to flow downward. The space in the water seal curved surface 3123 may form a water seal surface meeting standard requirements.

The whirl water guiding surface 312 includes a brush ring water guiding curved surface 3121, the brush ring water outlet 311 is located at the rear side of the brush ring water guiding curved surface 3121, and the front end 312a of the brush ring water guiding curved surface 3121 is lower than the brush ring water outlet 311, so that a part of water flow (shown by arrows in fig. 13 and 14) after the brush ring water flow comes out of the brush ring water outlet 311 can rotate along the inner wall of the urinal 31, and another part of water flow flows into the sewage drain 313 through the front part 312b of the flow curved surface.

The overflow curved surface 3122 and the water seal curved surface 3123 are both mirror symmetry structures, and symmetry planes of the overflow curved surface 3122 and the water seal curved surface 3123 are coplanar, the symmetry planes being vertical planes extending in the front-rear direction. Thus, the structure of the closestool body 3 is regular, and the closestool is convenient for processing and forming.

As shown in fig. 14, the front portion 312c of the water seal curved surface is inclined more than the front portion 312b of the flow passage curved surface is inclined with respect to the horizontal plane. Thus, the connection portion of the upper end of the water-sealed curved surface front portion 312c and the lower end of the over-flow curved surface front portion 312b forms a rearwardly convex structure, and the lower end of the water-sealed curved surface front portion 312c forms a forwardly concave structure. Compared with the scheme that the front part 312b of the overflow curved surface is connected with the front part 312c of the water seal curved surface along the same inclination degree, the scheme is beneficial to increasing the space at the lower side of the front part of the urinal 31, thereby being beneficial to increasing the height of the water tank 21 to increase the volume of the water tank 21, and on the other hand, the water flow of the front part 312b of the overflow curved surface passes through the front part 312c of the water seal curved surface and directly rushes into the sewage outlet 313, so that the water flow entering the sewage outlet 313 has obvious fall and can have better flushing effect.

In the description of the present application, 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 application 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 application.

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 application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, 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 application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features 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 level higher 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 below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (11)

1. A toilet, comprising:

The closestool body is provided with a urinal, the inner wall surface of the urinal is provided with a brush ring water outlet, and

The water channel module comprises a water tank, a brush ring spray head assembly and an air inlet assembly, wherein the brush ring spray head assembly is arranged at a water outlet of the brush ring and is communicated with the water tank;

When the air inlet assembly is in the second state, the air inlet assembly cuts off the air inlet from the external atmospheric environment, so that water in the water tank can overflow into the urinal through the brush ring spray head assembly, and the position of one end of the air inlet assembly, the position of the water outlet port of the brush ring spray head assembly and the position corresponding to the working water level of the water tank are sequentially lowered.

2. The toilet of claim 1, wherein the air intake assembly comprises:

the air inlet pipe is connected with the water tank and is internally provided with a movable cavity communicated with the air inlet and an avoidance opening communicated with the movable cavity, and

The movable piece is movably arranged in the movable cavity and can move between a first position and a second position relative to the air inlet pipe;

When the air inlet assembly is in the first state, the movable part is located at the first position and opens the avoidance opening to communicate the inner space of the water tank with the external atmospheric environment, and when the air inlet assembly is in the second state, the movable part is located at the second position and closes the avoidance opening to isolate the inner space of the water tank from the external atmospheric environment.

3. The toilet according to claim 2, wherein the air intake assembly further comprises a gasket disposed within the air intake tube and provided with the relief opening;

When the movable piece is positioned at the first position, the movable piece is separated from the sealing gasket, so that the avoidance opening is opened, and when the movable piece is positioned at the second position, the movable piece is in abutting fit with the sealing gasket, so that the avoidance opening is closed.

4. The toilet according to claim 2, wherein the air inlet is provided at the top of the tank, the air inlet pipe extends in a vertical direction, and the first position is located at the lower side of the second position;

The movable member is arranged to float between the first position and the second position relative to the air inlet pipe under the action of gravity and buoyancy.

5. A toilet according to claim 2, wherein the movable member is a float ball having an air gap with a wall of the movable chamber, and/or

The air inlet assembly further comprises a support, the support penetrates through the air inlet and is in sealing connection with one end, facing the water tank, of the air inlet pipe, the support is provided with an air passing channel communicated with the movable cavity and the air inlet, and when the movable piece is located at the first position, the movable piece is supported on the support.

6. The toilet according to claim 5, wherein when the movable member is a floating ball and an air passing gap is formed between the floating ball and a wall of the movable chamber, a plurality of guide ribs are provided on a side wall of the movable chamber at intervals along a circumferential direction of the air inlet pipe, the guide ribs are used for guiding the floating of the floating ball, and a space between adjacent guide ribs forms the air passing gap, and/or

When the air inlet assembly further comprises a support, the support comprises a sleeve, a plurality of supporting ribs connected with the inner side wall of the sleeve and arranged at intervals along the circumferential direction of the sleeve, and supporting columns connected with the supporting ribs, the supporting columns are used for supporting the movable piece, and the air passing channel comprises gaps between the adjacent supporting ribs.

7. The toilet according to claim 3, wherein the air inlet pipe comprises an air inlet seat and an extension pipe, the air inlet seat is provided with the movable cavity, the air inlet seat is fixedly connected with the water tank through a fastener, the extension pipe is connected with the upper end of the air inlet seat, and part of the extension pipe is inserted into the air inlet seat and is abutted against the sealing gasket;

An annular limiting flange is arranged in the air inlet seat, the sealing gasket is provided with an annular limiting groove, and the limiting flange is embedded into the limiting groove.

8. The toilet according to any one of claims 2 to 7, wherein the position of the air inlet pipe away from one end of the water tank, the position of the escape opening, and the position corresponding to the working water level of the water tank are sequentially lowered.

9. The toilet according to any one of claims 1 to 7, wherein the inner wall surface of the bowl is provided with a whirlpool diversion surface and a drain, the whirlpool diversion surface being arranged to direct water flow from the brush ring water outlet to the drain to drain dirt from the bowl;

The waterway module further comprises a water pump, wherein a water inlet port and a water outlet port of the water pump are respectively communicated with the water tank and the brush ring spray head assembly, and the waterway module is arranged to convey the water pump in the water tank to the brush ring spray head assembly, so that water flows through the brush ring water outlet and is injected into the urinal.

10. The toilet according to claim 9, wherein the inner wall surface of the urinal comprises a brush ring water guide curved surface, an overflow curved surface and a water seal curved surface which are sequentially connected from top to bottom, and the sewage outlet is arranged at the bottom of the water seal curved surface;

the rotary flushing guide surface comprises a brush ring water guide curved surface, the brush ring water outlet is positioned at the rear side of the brush ring water guide curved surface, and the front end of the brush ring water guide curved surface is lower than the brush ring water outlet;

The overflow curved surface and the water seal curved surface are both in mirror symmetry structures, the symmetry surfaces of the overflow curved surface and the water seal curved surface are coplanar, and the symmetry surfaces are vertical surfaces extending along the front-back direction;

the inclination degree of the front part of the water seal curved surface relative to the horizontal plane is larger than that of the front part of the overflowing curved surface.

11. The toilet according to any one of claims 1 to 7, wherein the toilet body is provided with a brush ring mounting hole communicating with the brush ring water outlet;

The brush ring spray head assembly comprises a spray head body, a sealing gasket, a connecting gasket and a nut, wherein the spray head body is inserted into the brush ring mounting hole and is communicated with the water tank and the brush ring water outlet, the sealing gasket is positioned in the brush ring mounting hole and sleeved outside the spray head body and can seal a gap between the spray head body and the wall of the brush ring mounting hole, the connecting gasket is positioned outside the brush ring mounting hole and abuts against the toilet body and is clamped between the nut and the toilet body, and the nut is sleeved outside the spray head body and is in threaded connection with the spray head body so that the spray head body is fixed on the toilet body.