JPH047051A - Water discharge head - Google Patents

Abstract

PURPOSE:To enhance workability by equipping both a piston member which is provided with a valve plate successively provided to the lower part of a lower communication port and a foamed water discharge part which is provided with an air suction port and a water discharge port. CONSTITUTION:Water is supplied from a water discharge pipe 5 and introduced into a communication chamber 18 from a connection port 18a through a water channel 16 and an annular recess 20. Then this water is introduced into the communication path 41 in the upper wall 21 of a piston member 17 through the upper communication port 22. A water discharge passage 37 is provided to the peripheral part of a body 11, communicated and connected. The water is introduced into an annular passage 61 in the lower part of the body 11 through the passage 39 and discharged from many water discharge holes 60... which are formed into a double annular shape in the peripheral part of a bottom member 53. Water discharge is performed in a shower-shape. Thereby water discharge correspondent to the working conditions is obtained and workability can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a water spouting head capable of producing two types of water spouting by operating one passageway and one switching valve.

(Prior Art) A type of water spouting head for use in the kitchen or for hair washing that can switch between showering and rectification to spout two types of water has been known for some time.

By the way, a device that allows switching between three types of water spouting, such as shower, rectification, and foaming water spouting with less water splashing, has been proposed in the past, but has not been put into practical use.

When switching between these three types of water discharge, even if one system of water discharge is switched to two types of water discharge, another system is required as the third type, and two independent water passages are required.

(Technical Problem to be Solved by the Invention) If a system that switches between three types of water discharge is attempted as described above, there will be two systems of water flow, resulting in a larger water discharge head, and a switching valve for each water flow. There are problems such as the provision of an on-off valve and two systems of water passages, as well as the complexity of the structure.

The present invention has been made to solve the above-mentioned technical problems, and its first purpose is to switch between three types of water discharge in one water passage system, improve workability in kitchen work, etc. Since the three types of water discharge are switched by vertical movement of one switching valve, a water discharge head whose external shape can be made compact in combination with one system of water passages can be obtained.

(Means for solving the technical problems) The means for solving the above technical problems are fitted into the upper half of the main body so as to be movable up and down, and provided above and below a communication chamber that communicates with the water passage. A piston member is provided with upper and lower communication ports that are opened and closed by the vertical movement of the valve, and a valve plate that is connected to the bottom of the lower communication port, and a piston member that is openable and closed by the valve plate at the bottom of the piston member, and that is opened and closed laterally. a foamy water spouting section having a foamy water generation chamber having a small inlet in the upper part, and a foamy water spouting part comprising an intake port and a water spout in the lower part for sucking air into the foamy water generation chamber; It consists of a communication chamber, a water spout passage that communicates with the upper communication port, and a peripheral water spout provided below the water spout passage.

(Operation by the above means) According to the above means, the lower communication port is opened by the upward movement of the switching valve, water is supplied from the side to the foamy water generation chamber, foamy water is discharged together with intake air, and the switching valve is moved downward. Open the lower communication port and supply water to the surrounding water discharge passage to perform shower water discharge from the lower surface around the water discharge head, and move the piston upward while blocking the upper communication port by moving the switching valve upward to move the valve plate. It is raised to open the ceiling of the foam water generation chamber and perform water rectification, etc.

(Embodiment) Next, a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a perspective view of the faucet, Fig. 2 is a plan view of the main parts, Fig. 3 is a longitudinal cross-sectional side view of the water discharge head, and Fig. 4 is a plan view of the foam water generation chamber with the valve plate removed. , FIG. 5 is a bottom view, and FIGS. 6 and 'tS7 are longitudinal sectional side views showing other water discharge states by switching the switching valve.

The water faucet 1 has a lever 2 on its upper part that can be moved up and down, and by moving the lever up and down, the internal water supply valve is operated to shut off water, discharge water, and adjust the amount of water discharged. The lower part is equipped with a handle 4 for operating the internal temperature control device 3, and the middle part is provided with a water discharge pipe 5 called a spout, and the base 6 is fitted into the faucet main body. It can be rotated left and right.

The details of the water spouting head 10 are as shown in Fig. 'fS3. At the middle upper part of the body 11, a mounting part 12 for attaching to the tip of the water spouting pipe 5 is provided protruding from a part of the outer periphery, and a connecting fitting etc. is provided through a screw 12a on the outer periphery. is connected to the tip of the water pipe.

The body 11 has a small diameter part 13 in the upper half and a large diameter part 1 in the lower half.
A step-shaped vertical cylinder hole 15 consisting of 4 is provided vertically through the cylinder hole,
A horizontal water passage 16 that is connected to the water discharge pipe passage of the mounting portion 12 opens at the middle of the small diameter portion 13 in the upper half and is connected to the inside of the small diameter portion 13 . A piston member 17 is fitted into the upper semi-small diameter portion 13 forming the cylinder portion of the cylinder hole 15 so as to be vertically slidable.

The piston member 17 has a communication chamber 18 in the upper part, and the communication chamber 18 and the above-mentioned water passage 16 are provided in a part of the piston member peripheral wall 19.
A connection port 18a is formed to connect the connection port 18a, and an annular recess 20 that overlaps the connection port 18a and extends downward in the axial direction is formed on this partial periphery of the peripheral wall 19. Figure 3 shows the piston member 1
7 is at the lower limit position, an upper communication port 22 is formed in the center of the upper wall 21 of the communication chamber 18, and a lower communication port 24 is formed in the lower wall 23, which is concentric with the lower communication port 22. .

Below the lower communication port 24, a disk-shaped valve plate 26 is hung down integrally with the lower wall 23, separated from the lower wall 23 via a hanging annular wall 25, and a flow ratio port 27 is provided in a part of the annular wall 25. is,
An inflow chamber 28 and a lower communication port 24 under the lower wall 23 within the peripheral wall 19
Communicate and connect.

A sliding part 29 with the small diameter part 13 is provided on the upper part of the circumferential wall of the piston member 17, and a sliding part 30 is provided on the lower half of the piston member 17.
0 is long in the axial direction and has the shape of a piston skirt portion, and its lower half extends below the small diameter portion 13 and hangs down to the middle portion in the height direction of the large diameter portion 14, and the lower half of the sliding portion 30 30b is provided with a large diameter stepped portion 31 having a diameter larger than the diameter of the upper inflow chamber 28.

A portion of the upper sliding portion 29 and a portion of the lower half sliding portion 30 are provided with annular rings [29a and 30a, respectively, and sealing materials 32 and 32 are provided to ensure watertightness between them and the small diameter portion 15. It has been intervened.

The upper half of the foam water generating member 33, which is a cylindrical fixed side, is slidably fitted into the large-diameter stepped portion 31 formed on the lower semi-inner diameter portion of the lower semi-sliding portion 3o of the piston member 17. The member 33 has a similar sealing material 32 in an annular groove 33a provided in a part of the upper circumference.
is interposed therebetween to ensure watertightness between the piston member 17 and the large diameter stepped portion 31 of the lower half sliding portion 30.

The peripheral part of the ceiling wall 34 of the foam water generating member 33 is the large-diameter stepped part 3
1, and thereby the piston member 17
The lower limit position of
5 is provided protrudingly, and an outlet 3 is provided in the center of the ceiling wall 34.
6 will be opened.

The inlet 3 as shown in FIG.
7... are provided radially in the tangential direction, for example, three, and abut the valve plate 26 or the upper end of the annular bank wall 35 at the lower limit position of the piston member 17 to close the top of the bank wall 35. A vortex generation chamber 38 is formed by the embankment wall 35, and the ceiling of the generation chamber 38 is constituted by a valve plate 26.

The small diameter portion 1 of the cylinder hole 15 is a part of the peripheral portion of the body 11.
3. A vertical water discharge passage 39 is provided vertically on the outside of the passage 3.
The lower end opening 39a of 9 is the upper end shoulder portion 1 of the lower large diameter portion 14.
It opens in a part of 4a and communicates with the inside of the large diameter part 14. The upper end opening 39b of the water discharge passage 39 opens into a large diameter recess 40 on the upper surface of the body 11, and the cylinder hole 15 opens into the recess 40.
The water discharge passage 39 is connected to a communication passage 41 formed by the upper part of the small diameter portion 13 and the upper communication port 22 .

A lid 42 is screwed onto the body 11, and the lid 42 has an inverted cup shape and is screwed onto a screw 40a formed on the outer periphery of the peripheral wall 40b of the recess 40 by a screw 42a formed on the inner diameter of the outer periphery. A guide boss portion 43 of the pallot 46 is located in the center of the lid body 42.
A screw hole 44 is provided in the screw hole 44, into which the upper half threaded portion 47 of the hull rod 46 is screwed. 22, and a switching valve 48 is fixed to the lower end thereof, and the switching valve 48 faces into the communication chamber 18.

A neck 46b is provided at the top of the pulp rod 46, and a sealing material 45 is interposed around this to ensure watertightness.
An operating knob 49 is fixed to the upper end of the cover plate 4.
A display board 50 is provided on the upper surface of 2 to display water spouting switching by rotating the knob 49. And the boss portion 43 on the lower surface of the lid plate 42
A coil spring 51 is installed between the circumference and the earthen wall 21 of the piston member 17.
The upper part of the coil spring 51 is locked around the stepped part 43a of the boss part 43, and the lower part is attached to the inner wall 2 of the upper sliding part 29 that stands up from the upper wall 21.
It is locked at 9b.

A small-diameter stepped portion is formed on the outer periphery of the lower end of the body 11, and the screw 52
, and the outer circumferential raised wall portion 5 of the cup-shaped bottom member 53 is formed on this.
Screw the screw 54 formed on the inner circumference of 3a. A through hole 55 is provided in the center of the bottom member 53, and the ventilation port 55 is constituted by a ventilation pipe 56 set up on the bottom member 53, and the upper end of the ventilation pipe 56 is concentric with the outlet 36 and is located below A guide flange 57 is provided protruding from the middle upper part of the ventilation pipe 56 facing the vent pipe 56 .

On the other hand, the center part 53b of the bottom member 53 including the vent 55 is made thick, and the inner diameter part of the lower end of the cylindrical main body 33b of the foam water generating member 33 is screwed onto the outer periphery of the annular stepped part 53c formed on the upper part of the center part 53b. The member 33 is fixed to the bottom member 53 side. For example, four comparatively large-diameter water spouts 58 are provided in the central portion 53b of the bottom member 53 in a radial direction around the vent 55 so as to face the inside of the foam water generating member 33. Mizuguchi 58
A cross-shaped rectifying plate 59 was interposed therein. The large diameter portion 14 and the foamy water generating member 33 are connected to the outer peripheral wall portion 53a of the bottom member 53.
A small-diameter water spouting hole 60 is provided at the bottom of the annular passage 61 defined between the outer periphery of the main body 33b, and the water spouting hole 60 is formed as shown in FIG. They are provided in two stages, and many are provided radially.

Next, the three types of water discharge switching will be explained in detail.

In FIG. 3, the switching valve 48 is at the lower limit position, and the valve 48 closes the lower communication port 24, while the upper communication port 22 is open. The water supplied from the water discharge pipe 5 flows into the communication chamber 18 from the connection port 18a via the water passage 16 and the annular recess 20, and since the lower communication port 24 is closed, it flows into the piston member 17 via the upper communication port 22. The water flows into the communication passage 41 of the upper wall 21 of. Since the water discharging passage 39 provided around the body 11 is connected to the communication passage 41, water flows into the annular passage 61 at the lower part of the body 11 through the passage 39, and the water flows into the bottom member 53.
A large number of water discharge holes 6 arranged in a double ring shape around the periphery of the
The water is discharged from 0... and produces a shower-like water discharge.

FIG. 6 shows a state in which the switching valve 48 is at the upper limit position by rotating the knob 49, and the valve 48 closes the upper communication port 22 and opens the lower communication port 24. The supplied water flows from the communication port 24 onto the valve plate 26 and from the outlet 27 into the inflow chamber 28, which is then blocked from above by the valve plate 26 to form a vortex generation chamber 38.
The water flows into the interior through the inlet ports 37. Inlet port 37・
. . are formed in the tangential direction and flow in from three locations, forming a vortex in the chamber 38 and flowing out from the outlet 36 in an umbrella shape. On the other hand, since the center of the vortex becomes a negative pressure, the intake port 5
5, air is sucked in, the air is mixed and stirred, and foamy water is produced. The water spout 58 in the center of the bottom member 53 passes through the cylindrical main body 33b of the foam water generating member 33.
It is discharged from. This results in foamy water.

Next, the knob 49 is turned so that the switching valve 48 moves further upward. As a result, the piston member 18 moves upward against the spring 51 due to further upward movement of the switching valve 48 that had closed the communication port 22. The piston member 17 slides upward within the small diameter portion 13 of the cylinder hole 15, while the lower half sliding portion 30 slides around the upper half of the cylindrical body 33b of the foam water generating member 33, and Axial sliding is guaranteed. Piston member 1
7, the valve plate 26 also rises together, and the valve plate 26 is separated from the upper end surface of the annular embankment wall 35, and the entire upper surface of the embankment wall 25 is opened, and the water supply is carried out on the embankment wall 25. It also flows from the part that constitutes the inlet 37, flows down and flows into the cylindrical body 33b from the outlet 36, and is discharged not only from the water spout 58 but also from the intake port 55. becomes. This is shown in Figure 7.

In this way, water is spouted from the center of the bottom member 53, and since the diameter of the water spout 58 is large, a rectified water spout suitable for boat fishing is obtained.

As described above, three types of water can be switched by rotating the knob 49.

Note that when the switching valve 48 is moved downward from the state shown in FIG. 6, the piston member 17 is moved downward by the elastic force of the spring 51, and as shown in FIG.
It is held at the lower limit position as shown in FIG. 5, and the other two types of water are spouted.

In addition, although the piston member 17 was explained as one member in this description, it may be two members integrated for manufacturing reasons.

(Effects of the Invention) As is clear from the above, according to the present invention, three types of water such as shower water, foaming water, and general rectified water can be spouted with one water spouting head, and the type of kitchen work or hair washing situation can be changed by switching operation. Water can be spouted according to the working conditions, and work efficiency can be significantly improved.

In addition, the above can be done with one water discharging head, one switching valve, and a system water passage, and the external shape of the water discharging head is compact while switching between three types of water discharging, and although it is a three-type switching water discharging type, it is light and easy to handle. It does not become large and obstruct the work, and since there is only one water passage, the water passage system is simple and compact.The switching valve also has an upward movement method that resists vertical movement and elastic force. Since it only requires movement, a simple mechanism is sufficient, and the overall structure is simple, which has many advantages.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; Fig. 1 is a perspective view of a water faucet, Fig. 'tS2 is a plan view of the same essential parts, Fig. 3 is a longitudinal cross-sectional side view of the water discharge head, and Fig. 4 is a valve. FIG. 5 is a plan view of the foamy water generation chamber shown with the plate removed, FIG. 5 is a bottom view, and FIGS. 6 and 7 are longitudinal sectional side views showing other water discharge states by switching the switching valve. In the drawing, 10 is a water discharge head, 11 is a main body, 16 is a water passage, 17 is a piston member, 18 is a communication chamber, 22.24 is an upper and lower communication port, 26 is a valve plate, 38 is a vortex generation chamber, and 39 is a water discharge 51 is a pressure member, 55 is an intake port, 58 is a foam water spout, and 60 is a peripheral water spout. Patent applicant: Toto Kiki Co., Ltd. Agent: Patent attorney (2) 1) Participant: Patent attorney
Kuni Ohashi Production Patent Attorney Koyama
Called condition

Claims (1)

[Claims] 1. The device is fitted into the upper half of the main body so as to be movable up and down, is provided above and below a communication chamber that communicates with the water passageway, and has upper and lower communication ports that are opened and closed by the up and down movement of the switching valve. , a piston member having a valve plate connected to the lower part of the lower communication port; a foam water generation chamber which is openable and closed by the valve plate at the lower part of the piston member and has an inlet on the side; a foamy water spouting part comprising an intake port and a water spout for sucking air into the foamy water generation chamber;
A water spouting head comprising a water spouting passage provided in a peripheral portion of a main body and communicating with a communication chamber and an upper communication port when the switching valve is opened, and a peripheral water spout provided below the water spouting passage. 2. The piston member is pressed downward so that the valve plate normally closes the ceiling of the foam water generation chamber, and is moved upward against the elastic force of the piston member by the upward movement of the switching valve, and the valve plate is moved upward against the elastic force of the piston member. Claim 1: The ceiling of the foam water generation chamber is opened by moving it upward.
water discharge head.