Hidden mouthwash outlet device

Abstract

The invention provides a water outlet device with hidden mouthwash, and relates to the technical field of sanitary products, the water outlet device comprises a faucet main body and a water outlet piece, the faucet main body is provided with a water inlet channel, a first water outlet channel, a second water outlet channel and a plurality of water outlet channels, the water inlet end of each water outlet channel is controlled by a switching piece to be connected and disconnected with the first water outlet channel, and the water outlet end of each water outlet channel is controlled by a switching piece. The water outlet ends of the water outlet paths are provided with different water outlet nozzles; the water outlet piece is provided with a mouthwash outlet communicated with the second water outlet channel and a pressing part exposed out of the faucet body, and by pressing the pressing part, the water outlet piece telescopically moves in the axial direction of the faucet body under the action of a moving mechanism, so that the mouthwash outlet is exposed out or hidden, and the mouthwash outlet can be opened or closed. And meanwhile, the water outlet channel communicated with the water inlet channel is switched, so that the mouth wash outlet can discharge water while stretching out. The problems that an existing faucet structure with an upper water outlet function is single in function and inconvenient to use by a user are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bathroom products, in particular to a water outlet device with hidden mouthwash. BACKGROUND

[0002] The faucet with upper water outlet function on the market usually exposes the upper water outlet to the faucet body, which not only easily accumulates dirt, but also breeds bacteria, affects the hygiene of water flow, and is not conducive to user mouthwash use. Therefore, more and more faucets set the upper water outlet as hidden, such as a faucet with a hidden water outlet module disclosed in Chinese patent CN215908447U, which designs a hidden water outlet module and a switching assembly in the faucet, controls the water outlet path connected with the water inlet path through the switching assembly, drives the movable rod and the elastic member by water flow, realizes the telescopic displacement of the hidden water outlet assembly relative to the faucet body, and guarantees the hygiene of the water outlet. However, in this type of water outlet structure, only another type of water outlet can be added on the basis of the mouthwash function, and the switching of the two types of water outlet is realized through the switching assembly, so the function is relatively single. In addition, the hidden water outlet module relies on the water flow pressure to extend outward along the faucet body, and when the water flow stops, it is retracted into the faucet body under the elastic force of the elastic member. When the water flow pressure is small, the water outlet cannot be pushed out, and when the water flow pressure is large, the water flow formed by the upper water outlet is too rapid and the impact is too large, which causes water splashing and is not convenient for user mouthwash use. In summary, the existing faucet with upper water outlet has the problems of single function and inconvenience for user use. SUMMARY

[0003] The present application discloses a water outlet device with hidden mouthwash, aiming to improve the problems of single function and inconvenience for user use of the existing faucet with upper water outlet.

[0004] The present application adopts the following scheme: A water outlet device with hidden mouthwash, comprising a faucet body and a water outlet part, wherein the faucet body has a water inlet channel, a first water outlet channel, a second water outlet channel and a plurality of water outlet paths, the water inlet end of each water outlet path is controlled by a switching part to be connected or disconnected with the first water outlet channel, and the water outlet end of each water outlet path is provided with different water outlet nozzles to form different water flow; the water outlet part is provided with a mouthwash outlet communicated with the second water outlet channel and a pressing part exposed to the faucet body, by pressing the pressing part, the water outlet part is moved along the axial direction of the faucet body under the action of the moving mechanism, so as to expose or hide the mouthwash outlet, and at the same time, the water outlet channel connected with the water inlet channel is switched, so that the mouthwash outlet can be watered while being exposed.

[0005] As a further improvement, the moving mechanism comprises a hanging part arranged or formed on the side of the water outlet, and a moving plate arranged on the fixed base, the moving plate is provided with a driving groove, the hanging part is inserted into the driving groove, when the water outlet moves, the hanging part abuts against the side wall of the driving groove to drive the moving plate to reciprocate along the guide rail on the fixed base.

[0006] As a further improvement, the track of the driving groove is closed, the bottom of the track is provided with a plurality of steps with different heights, a stop surface is arranged between two adjacent steps, the hanging part is elastic, abuts against the steps and can be raised or lowered with the steps, so that the hanging part moves unidirectionally on the track of the driving groove.

[0007] As a further improvement, the track of the driving groove is heart-shaped and is provided with four steps, each step is connected by a stop surface in sequence, the hanging part slides through two steps each time the pressing part is pressed and released, when the hanging part moves to the proximal end of the track, the mouthwash outlet extends out of the faucet body, when the hanging part moves to the distal end of the track, the mouthwash outlet is hidden in the faucet body.

[0008] As a further improvement, the hanging part is a cantilever formed by extending outward along the side wall of the water outlet and is integrally injection molded with the water outlet.

[0009] As a further improvement, a first elastic member is arranged between the water outlet and the fixed base, the elastic direction of the first elastic member is the same as the extension direction of the mouthwash outlet.

[0010] As a further improvement, the moving direction of the switching part is the same as the moving direction of the water outlet.

[0011] As a further improvement, the switching part is arranged at the water outlet end of the first water outlet, comprising a switching rod arranged axially along the faucet body, a water distribution shaft sleeved on the switching rod, and a button exposed to the faucet body, wherein the button is provided with a driving part, the switching rod is provided with a driven part, by pressing the button, the driving part abuts against the driven part, thereby driving the switching rod to move synchronously with the water distribution shaft, so that the sealing part on the water distribution shaft moves between the first position and the second position, corresponding to switching the water outlet path communicated with the first water outlet.

[0012] As a further improvement, the driving part has two symmetrically arranged driving inclined surfaces, the driven part is arranged in a similar shape with the driving part, when the button is pressed, the driving inclined surfaces abut against the driven inclined surfaces on the driven part to drive the switching rod to move axially along the faucet body.

[0013] As a further improvement, the switching rod is provided with a pressure bearing part, and a second elastic member is arranged at an end away from the pressure bearing part, the water flow pressure direction on the pressure bearing part is opposite to the elastic force direction of the second elastic member, when the sealing part is located at the first position and the second position, the water flow pressure on the pressure bearing part is different, so that when the switching rod moves and resets, the driven part is switched between the left side and the right side of the driving part.

[0014] By adopting the technical scheme, the application can achieve the following technical effects: 1. The application controls the telescopic movement of the water outlet by setting the moving mechanism, and synchronously switches the water outlet of the mouthwash outlet during the movement, without setting a switching valve for switching the water outlet, thereby simplifying the structure, reducing the space occupation, and reducing the cost. When in use, the press part is directly pressed to realize the water outlet of the mouthwash outlet, which is more intuitive and convenient. Meanwhile, a plurality of water outlets connected with the first water outlet are arranged, and the water outlets are controlled to outlet water by the switching member, thereby enriching the water outlet function. In addition, the setting of the moving mechanism can improve the stability of the mouthwash outlet during the telescopic movement, and ensure that the mouthwash outlet can smoothly extend when the water flow pressure is small.

[0015] 2. The hanging part and the water outlet are integrally injection molded, which can avoid the rusting problem caused by the use of metal parts during long-term use, and also reduces the parts and assembly, thereby further reducing the cost.

[0016] 3. The driven part is reset by the water flow pressure and the second elastic member, thereby simplifying the switching structure, further reducing the structure space, and ensuring the stable switching of the water outlets. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the application, and therefore should not be regarded as a limitation to the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0018] Figure 1 is a structural schematic diagram of one embodiment of the application; Figure 2 and Figure 3 are sectional views of the sealing part in the first position from different viewing angles of one embodiment of the application; Figure 4 and Figure 5 are sectional views of the sealing part in the second position from different viewing angles of one embodiment of the application; Figure 6 and Figure 7is a cross-sectional view of the mouthwash outlet of one embodiment of the present application at different viewing angles when the mouthwash outlet is extended; Figure 8 (a) to (d) are cross-sectional views of the hanging portion and the moving plate at different positions of one embodiment of the present application; Figure 9 is a structural schematic diagram of the water outlet of one embodiment of the present application; Figure 10 is a structural schematic diagram of the moving plate of one embodiment of the present application; Figure 11 is a structural schematic diagram of the fixed seat of one embodiment of the present application; Figure 12 is an exploded view of the switching member of one embodiment of the present application; Figure 13 is an exploded view of Figure 1 .

[0019] icon: 1 - faucet body; 11 - water inlet channel; 12 - first water outlet channel; 13 - second water outlet channel; 14 - fixed seat; 141 - guide rail; 15 - first water outlet path; 151 - bubbler; 16 - second water outlet path; 161 - shower head; 17 - housing; 18 - water inlet member; 2 - water outlet member; 21 - mouthwash outlet; 22 - pressing portion; 23 - hanging portion; 24 - flow-limiting element; 25 - water inlet pipe; 3 - switching member; 31 - switching rod; 311 - driven portion; 312 - pressure-bearing portion; 313 - second elastic member; 32 - water distribution shaft; 321 - sealing portion; 322 - third elastic member; 33 - button; 331 - driving portion; 4 - moving plate; 41 - driving groove; 411 - step surface; 412 - gear surface; 5 - first elastic member. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work are within the scope of protection of the present application.

[0021] The terms "top", "bottom", "upper", "lower", "left", "right", "front", "back", and similar terms used herein are for illustrative purposes only and are merely intended to facilitate the description of the present disclosure and do not connote or imply any specific order, orientation, or relative importance. The terms "first", "second", and the like, are used merely to distinguish different objects and do not connote or imply any specific order, quantity, or importance. The term "a plurality of" means one or more than one, and the term "a plurality of" means two or more than two, unless otherwise specifically defined. Embodiments

[0022] In combination Figures 1 to 13 The present embodiment provides a water outlet device with hidden mouthwash, comprising a faucet main body 1 and a water outlet element 2, wherein the faucet main body 1 has a water inlet channel 11, a first water outlet channel 12, a second water outlet channel 13 and a plurality of water outlet paths, the water inlet end of each water outlet path is controlled by a switching element 3 to be connected or disconnected with the first water outlet channel 12, and the water outlet end of each water outlet path is provided with different water outlet nozzles to form different water spray patterns; the water outlet element 2 is provided with a mouthwash outlet 21 communicated with the second water outlet channel 13 and a pressing portion 22 exposed to the faucet main body 1, by pressing the pressing portion 22, the water outlet element 2 is moved along the axial direction of the faucet main body 1 under the action of a moving mechanism, so as to expose or hide the mouthwash outlet 21, and at the same time switch the water outlet channel communicated with the water inlet channel 11, so that the mouthwash outlet 21 can be extended while water is flowing out.

[0023] For example, the pressing portion 22 is exposed to the end of the main body, when the mouthwash outlet 21 is hidden in the faucet main body 1, the water inlet channel 11 is communicated with the first water outlet channel 12, and the water outlet nozzle is selected by the switching element 3 to switch the water outlet. By pressing the pressing portion 22 along the axial direction of the faucet main body 1, the water outlet element 2 is moved along the axial direction of the faucet main body 1 under the action of the moving mechanism, at this time the water inlet channel 11 is communicated with the second water outlet channel 13, the mouthwash outlet 21 is exposed and water is flowing out.

[0024] It should be noted that in the present embodiment, the movement mechanism is arranged to control the extension and retraction of the water outlet 2, and the water outlet 21 is switched synchronously during the movement, so that the switching valve for switching the water outlet is not needed, thereby simplifying the structure, reducing the space occupation, and reducing the cost. In use, the pressing portion 22 is directly pressed to realize the water outlet of the mouthwash outlet 21, which is more intuitive and convenient. Meanwhile, a plurality of water outlets connected with the first water channel 12 are arranged, and each water outlet is controlled by the switching member 3 to realize the water outlet function. In addition, the arrangement of the movement mechanism can improve the stability of the mouthwash outlet 21 during the extension and retraction, so that the mouthwash outlet 21 can smoothly extend when the water pressure is small. In addition, the flow limiting element 24 can be arranged in the second water channel 13 to reduce the water flow pressure of the mouthwash outlet 21, so that the water flow is more gentle and comfortable, thereby further facilitating the use of the user.

[0025] In a preferred embodiment, the movement mechanism includes a hanging portion 23 arranged or formed on the side surface of the water outlet 2, and a moving plate 4 arranged on the fixed seat 14, wherein the moving plate 4 is provided with a driving groove 41, and the hanging portion 23 is inserted into the driving groove 41. When the water outlet 2 moves, the hanging portion 23 abuts against the side wall of the driving groove 41 to drive the moving plate 4 to reciprocate along the guide rail 141 on the fixed seat 14. Thus, the movement and reset of the water outlet 2 are realized by one moving plate 4. For example, the track of the driving groove 41 is closed, and a plurality of stepped surfaces 411 with different heights are arranged on the bottom of the track, and a stop surface 412 is arranged between two adjacent stepped surfaces 411. The hanging portion 23 is elastic and abuts against the stepped surface 411 and can be raised or lowered with the stepped surface 411, so that the hanging portion 23 moves unidirectionally on the track of the driving groove 41. That is, the hanging portion 23 moves unidirectionally on the track of the driving groove 41 during the movement and reset of the water outlet 2. The hanging portion 23 moves axially with the water outlet 2, so that the moving plate 4 can reciprocate along the guide rail 141 perpendicular to the axial direction of the faucet body 1.

[0026] Further, the track of the driving groove 41 is heart-shaped and is provided with four stepped surfaces 411, and each stepped surface 411 is connected by a stop surface 412. Each time the pressing portion 22 is pressed and released, the hanging portion 23 slides through two stepped surfaces 411. When the hanging portion 23 moves to the proximal end of the track, the mouthwash outlet 21 extends out of the faucet body 1. When the hanging portion 23 moves to the distal end of the track, the mouthwash outlet 21 is hidden in the faucet body 1. For example, in the (a) position, the hanging portion 23 is at the distal end of the track, and the mouthwash outlet 21 is hidden in the faucet body 1. When the pressing portion 22 is pressed, the hanging portion 23 moves from the (a) position to the (b) position, and after the pressing portion 22 is released, the hanging portion 23 moves from the (b) position to the (c) position, and after the pressing portion 22 is released, the hanging portion 23 moves from the (c) position to the (d) position, and after the pressing portion 22 is released, the hanging portion 23 moves from the (d) position to the (a) position. Figure 8 Figure 8 (a) position, the hanging portion 23 is at the distal end of the track, and the mouthwash outlet 21 is hidden in the faucet body 1. When the pressing portion 22 is pressed, the hanging portion 23 moves from the (a) position to the (b) position. Figure 8 (b) position, the mouthwash outlet 21 extends out of the faucet body 1. When the pressing portion 22 is released, the hanging portion 23 moves from the (b) position to the (c) position. Figure 8 (c) position, the mouthwash outlet 21 is hidden in the faucet body 1. When the pressing portion 22 is released, the hanging portion 23 moves from the (c) position to the (d) position. Figure 8 ​position (c), when the hanging portion 23 is located at the proximal end of the track, and the mouthwash outlet 21 is exposed from the faucet body. Press the pressing portion 22 again, and the hanging portion 23 is moved from the position (c) to the position (d), and the mouthwash outlet 21 is retracted into the faucet body. Figure 8 position (c) to the position (d). Figure 8 position (d), and after the release button 33 is released, the mouthwash outlet 21 is retracted into the faucet body from the position (d) to the position (a). Figure 8 position (d) to the position (a). Figure 8 (a), the reset is achieved.

[0027] Preferably, a first elastic member 5 is arranged between the water outlet 2 and the fixed seat 14, and the elastic direction of the first elastic member 5 is the same as the extending direction of the mouthwash outlet 21. The first elastic member 5 can be a spring, and when the hanging portion 23 is located at the proximal end of the driving groove 41, the water outlet 2 can be extended under the elastic force of the spring, so as to further ensure the extension and retraction movement of the mouthwash outlet 21.

[0028] On the basis of the above embodiment, in an optional embodiment of the present application, the hanging portion 23 is a cantilever formed by extending outward along the side wall of the water outlet 2, and is integrally injection molded with the water outlet 2. The material of the hanging portion 23 is plastic, which can avoid the problem of rust caused by using metal parts during long-term use, and can also reduce the parts and assembly, so as to further reduce the cost.

[0029] In another embodiment, the moving direction of the switching member 3 is the same as the moving direction of the water outlet 2, so as to make the structure more compact and ensure the size of the faucet body 1 in the width direction.

[0030] On the basis of the above embodiment, in an optional embodiment of the present application, the switching member 3 is arranged at the water outlet end of the first water channel 12, and includes a switching rod 31 arranged along the axial direction of the faucet body 1, a water distribution shaft 32 sleeved on the switching rod 31, and a button 33 exposed to the faucet body 1. The button 33 is provided with a driving portion 331, and the switching rod 31 is provided with a driven portion 311. By pressing the button 33, the driving portion 331 is pressed against the driven portion 311, so as to drive the switching rod 31 to move synchronously with the water distribution shaft 32, and the sealing portion 321 on the water distribution shaft 32 moves between the first position and the second position, so as to correspond to the switching of the water outlet path communicated with the first water channel 12. Exemplarily, the faucet body 1 is provided with two water outlet paths, which are a first water outlet path 15 and a second water outlet path 16. When the sealing portion 321 moves to the first position, the first water outlet path 15 is communicated with the first water channel 12. When the sealing portion 321 moves to the second position, the second water outlet path 16 is communicated with the first water channel 12. The water outlet nozzle arranged at the water outlet end of the first water outlet path 15 is a bubbler 151, and the water outlet nozzle arranged at the water outlet end of the second water outlet path 16 is a shower head 161. The switching of the bubbler water and the shower water is realized by pressing the button 33. However, it is not limited to this, and is not specifically limited.

[0031] In one embodiment, the drive unit 331 has two symmetrically arranged drive ramps, and the driven unit 311 is similarly shaped to the drive unit 331. When the button 33 is pressed, the drive ramps abut against the driven ramps on the driven unit 311, thereby driving the switching lever 31 to move axially along the faucet body 1. For example, the switching lever 31 is provided with a pressure-bearing part 312, and a second elastic member 313 is provided at the end away from the pressure-bearing part 312. The direction of the water flow pressure on the pressure-bearing part 312 is opposite to the direction of the elastic force of the second elastic member 313. When the sealing part 321 is in the first position and the second position, the water flow pressure on the pressure-bearing part 312 is different, so that when the switching lever 31 moves to its reset position, the driven unit 311 switches between the left and right sides of the drive unit 331. (Refer to...) Figure 2 and Figure 3 In the initial state, the sealing part 321 is located in the first position under the action of the third elastic member 322 and seals with the first position. At this time, the pressure-bearing part 312 is not subjected to water flow pressure. The switching lever 31 moves and resets under the elastic force of the second elastic member 313, so that the driven part 311 is located to the left of the driving part 331. Pressing the button 33 causes the driving part 331 to move to the left against the driven part 311. Figure 4 and Figure 5 At this time, the sealing part 321 moves to the second position and abuts against the second position under the action of water pressure to seal. At this time, the water pressure on the pressure-bearing part 312 is greater than the elastic force of the second elastic element 313, thus driving the switching rod 31 to move the driven part 311 to the right side of the driving part 331. If the button 33 is pressed again, the driving part 331 abuts against the driven part 311, driving the switching rod 31 to move to the right to return to the initial state, and so on. In this embodiment, the driven part 311 is reset by the combined action of water pressure and the second elastic element 313, which simplifies the switching structure, further reduces the structural space, and ensures smooth switching of each water outlet. It should be mentioned that after the button 33 is released, the button 33 can be reset by the spring that abuts against the button 33.

[0032] In other embodiments, the faucet body 1 includes a shell 17 and a water inlet 18 and a fixing seat 14 disposed within the shell 17. The water inlet 18 is formed with a water inlet channel 11, a first water outlet channel 12, a second water outlet channel 13 and a second water outlet path 16. The fixing seat 14 is formed with a first water outlet path 15. The fixing seat 14 is fixedly connected to the water inlet 18. The water inlet pipe 25 connected to the water outlet 2 is inserted into the second water outlet channel 13. The hanging part 23 is locked in the drive groove 41 of the moving plate 4. The axial movement of the water outlet 2 is restricted by the drive groove 41. The structure is simple and easy to assemble and disassemble.

[0033] The above are merely preferred embodiments of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions that fall within the scope of the present invention are within the scope of protection of the present invention.

Claims

1. A water dispensing device with a concealed mouthwash dispenser, characterized in that, include: The faucet body has an inlet channel, a first outlet channel, a second outlet channel, and multiple outlet paths. The inlet end of each outlet path is controlled to switch on and off with the first outlet channel via a switching component. The outlet end of each outlet path is equipped with different spouts to form different water sprays. The water outlet is provided with a mouthwash outlet communicating with the second water outlet channel and a pressing part exposed in the faucet body. By pressing the pressing part, the water outlet is moved along the axial direction of the faucet body under the action of the moving mechanism, thereby exposing or hiding the mouthwash outlet. At the same time, the water outlet channel communicating with the water inlet channel is switched so that water can be discharged when the mouthwash outlet is extended.

2. The water dispensing device with concealed mouthwash according to claim 1, characterized in that, The moving mechanism includes a hanging part mounted or formed on the side of the water outlet component, and a moving plate disposed on a fixed base. The moving plate is provided with a drive groove, and the hanging part is inserted into the drive groove. When the water outlet component moves, the hanging part abuts against the side wall of the drive groove to drive the moving plate to reciprocate along the guide rail on the fixed base.

3. The water dispensing device with concealed mouthwash according to claim 2, characterized in that, The drive groove has a closed trajectory, and its bottom is provided with multiple stepped surfaces of different heights along the trajectory. A stop surface is provided between two adjacent stepped surfaces. The hanging part is elastic, abuts against the stepped surface, and can rise or fall with the stepped surface, so that the hanging part can move unidirectionally on the trajectory of the drive groove.

4. The water dispensing device with concealed mouthwash according to claim 3, characterized in that, The drive groove has a heart-shaped trajectory and four stepped surfaces. Each stepped surface is connected in sequence by a stop surface. Each time the pressing part is pressed and released, the hanging part slides over two stepped surfaces. When the hanging part moves to the near end of the trajectory, the mouthwash outlet extends out of the faucet body. When the hanging part moves to the far end of the trajectory, the mouthwash outlet is hidden inside the faucet body.

5. The water dispensing device with concealed mouthwash according to any one of claims 2-4, characterized in that, The hanging part is a cantilever extending outward along the side wall of the water outlet component, and is integrally injection molded with the water outlet component.

6. The water dispensing device with concealed mouthwash according to claim 2, characterized in that, A first elastic element is provided between the water outlet and the fixed base, and the elastic direction of the first elastic element is the same as the extension direction of the mouthwash outlet.

7. The water dispensing device with concealed mouthwash according to claim 1, characterized in that, The switching component moves in the same direction as the water outlet component.

8. The water dispensing device with concealed mouthwash according to claim 1 or 7, characterized in that, The switching component is installed at the water outlet end of the first water outlet channel and includes a switching rod arranged along the axial direction of the faucet body, a water distribution shaft sleeved on the switching rod, and a button exposed on the faucet body. The button is provided with a driving part, and the switching rod is provided with a driven part. By pressing the button, the driving part presses against the driven part, thereby driving the switching rod to move synchronously with the water distribution shaft, so that the sealing part on the water distribution shaft moves between a first position and a second position, correspondingly switching the water outlet path connected to the first water outlet channel.

9. The water dispensing device with concealed mouthwash according to claim 8, characterized in that, The drive unit has two symmetrically arranged drive ramps, and the driven unit is similarly shaped to the drive unit. When the button is pressed, the drive ramp abuts against the driven ramp on the driven unit to drive the switching lever to move along the axial direction of the faucet body.

10. The water dispensing device with concealed mouthwash according to claim 9, characterized in that, The switching rod is provided with a pressure-bearing part and a second elastic element is provided at the end away from the pressure-bearing part. The direction of the water flow pressure on the pressure-bearing part is opposite to the direction of the elastic force of the second elastic element. When the sealing part is located in the first position and the second position, the water flow pressure on the pressure-bearing part is different, so that when the switching rod moves to reset, the driven part switches between the left and right sides of the driving part.

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