CN116571368A - Water flow adjusting device and shower head - Google Patents

Abstract

The invention discloses a water flow adjustment device and a shower head. The shower head includes a holding device, a water outlet device and a water flow adjustment device. assembly; the water distribution assembly has a water inlet channel, a first water outlet channel and a second water outlet channel; the movable end of the pressing assembly is relatively rotatably connected to the water flow adjustment assembly, and the control end of the pressing assembly is located at the outside the water flow adjustment assembly; the water flow adjustment assembly and the water distribution assembly are vertically embedded in the water distribution assembly, and when the water flow adjustment assembly moves relative to the water distribution assembly, the water inlet The channel changes the communication relationship between the first water outlet channel and the second water outlet channel. The invention can reduce the difficulty of switching the water outlet state and improve user experience.

Description

A water flow regulating device and a shower

technical field

The invention relates to the field of sanitary ware, in particular to a water flow regulating device and a shower.

Background technique

In order to realize the adjustment of the water outlet shape of the shower head, the existing shower head generally sets the water outlet hole and multiple water outlet chambers on the water outlet assembly, so that the water outlet hole is connected with different water outlet chambers by rotating the water outlet assembly, and the adjustment of the water outlet shape is realized. . For showers with this type of structure, the water outlet end of the shower body is relatively large in size, and a convex control protrusion needs to be provided on the water outlet end of the shower body, so that the appearance of the shower head is not good enough, and it is difficult to discharge water with one hand. State switching.

Contents of the invention

The technical problem to be solved by the present invention is to provide a water flow regulating device and a shower, which reduces the difficulty of operation when the state of the water outlet changes.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A water flow adjustment device, comprising a water diversion assembly, a water flow adjustment assembly, and a pressing assembly arranged coaxially with the water flow adjustment assembly;

The water distribution assembly has a water inlet channel, a first water outlet channel and a second water outlet channel;

The movable end of the pressing assembly is relatively rotatably connected to the water flow adjustment assembly, and the control end of the pressing assembly is located outside the water flow adjustment assembly;

The water flow adjustment assembly and the water distribution assembly are vertically embedded in the water distribution assembly. When the water flow adjustment assembly moves relative to the water distribution assembly, the water inlet channel changes to the second water distribution assembly. The first water outlet channel communicates with the second water outlet channel.

In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:

A shower, comprising a holding device, a water outlet device and the above-mentioned water flow regulating device;

The water outlet device is installed at the water outlet end of the holding part, and the water flow regulating device is installed in the holding part;

The water outlet device has a first water outlet cavity and a second water outlet cavity;

The first water outlet channel of the water flow regulating device communicates with the first water outlet chamber, and the second water outlet channel of the water flow regulating device communicates with the second water outlet chamber.

The beneficial effect of the present invention is that: through the cooperation of the pressing assembly and the water flow adjusting assembly, the pressing assembly drives the water flow adjusting assembly to move relative to the water diversion assembly, thereby changing the communication relationship between the water inlet channel and different water outlet channels, and realizing the change of the water outlet state. Compared with the water outlet assembly in the existing shower head, the water outlet state adjustment device replaces the water outlet assembly in the traditional shower head that needs to be rotated and adjusted, and uses a pressing method to change the water outlet state, and the water flow adjustment device is installed on the handle. In the holding device, it is more convenient for the user to switch the water outlet state, reduce the difficulty of operation, and improve the user experience.

Description of drawings

Fig. 1 is the local explosion diagram of shower in the present invention;

Fig. 2 is a partial sectional view of the shower in the present invention;

Fig. 3 is an exploded view of the water outlet state regulating device in the present invention;

Figure 4 is an exploded view of the pressing assembly and the valve core in the present invention;

Fig. 5 is the structural representation of spool among the present invention;

Fig. 6 is a schematic structural view of the water outlet state adjusting device in the present invention when the water inlet channel is in communication with the second water outlet channel;

Fig. 7 is a cross-sectional view of the water outlet state adjusting device in the present invention when the water inlet channel and the second water outlet channel are in communication;

Fig. 8 is the second cross-sectional view of the water outlet state adjusting device in the present invention when the water inlet channel is in communication with the second water outlet channel;

Fig. 9 is a schematic structural view of the water outlet state adjusting device in the present invention when the water inlet channel is in communication with the first water outlet channel;

Fig. 10 is a cross-sectional view of the water outlet state adjusting device in the present invention when the water inlet channel communicates with the first water outlet channel;

Fig. 11 is a second cross-sectional view of the water outlet state adjusting device in the present invention when the water inlet channel communicates with the first water outlet channel.

Label description:

1. Holding device;

2. Outlet device;

21. The first water outlet chamber;

22. The second water outlet cavity;

23. Limit column;

24, the water outlet cover plate; 241, the second water outlet column; 242, the first annular rib; 243, the second annular rib;

25. The first water outlet panel; 251. The annular water retaining groove; 252. The first water outlet column;

26. The second water outlet panel; 261. The water outlet hole;

27, water inlet cover plate; 271, first water inlet tank; 272, second water inlet tank; 273, diversion surface;

3. Water flow regulating device;

31. Water distribution component; 311. Water inlet channel; 312. First water outlet channel; 313. Second water outlet channel; 314. Limit rod;

32. Water flow adjustment component; 321. Resetting part; 322. Valve core; 3221. Limiting protrusion; 3222. Guide slope; 323. Switching part; 3231. Accommodating groove; , the first slot; 3236, the limit groove; 3237, the limit piece; 324, the sealing ring;

33. Press assembly; 331. Rotating member; 3311. First guide part; 3312. Second guide part; 3313. Guide assembly; 332. Press piece; 3321. Guide groove; 3322. Guide block; 3323. Second slot .

Detailed ways

In order to describe the technical content, achieved goals and effects of the present invention in detail, the following descriptions will be made in conjunction with the embodiments and accompanying drawings.

Please refer to Fig. 1-Fig. 11, a water flow adjustment device, including a water diversion assembly, a water flow adjustment assembly and a pressing assembly coaxially arranged with the water flow adjustment assembly;

The water distribution component has a water inlet channel, a first water outlet channel and a second water outlet channel;

The movable end of the pressing component is relatively rotatably connected to the water flow regulating component, and the control end of the pressing component is located outside the water flow regulating component;

The water flow adjustment component and the water diversion component are vertically embedded in the water diversion component. When the water flow adjustment component moves relative to the water diversion component, the communication relationship between the water inlet channel and the first water outlet channel and the second water outlet channel changes.

It can be seen from the above description that the beneficial effects of the present invention are: through the cooperation of the pressing component and the water flow regulating component, the pressing component drives the water flow regulating component to move relative to the water diversion component, thereby changing the communication relationship between the water inlet channel and different water outlet channels, realizing The change of the water outlet state. Compared with the water outlet assembly in the existing shower, the water outlet state adjustment device replaces the water outlet assembly that needs to be rotated and adjusted in the traditional shower. The water outlet state is changed by pressing, and the water flow is adjusted. The device is installed in the holding device, which is more convenient for the user to switch the water outlet state, reduces the difficulty of operation, and improves the user experience.

Further, the water flow regulating assembly includes a reset member, a spool and a switching member coaxially arranged with the spool;

The reset part is embedded in the end of the switching part away from the pressing component and presses against the inner wall of the water diversion component;

The switching element and the valve core are relatively movable embedded in the valve core.

From the above description, it can be known that the pressing component drives the switching part to move relative to the valve core, and during this process the pressing component will rotate relative to the switching part, so that the pressing component can pass through and rotate under the drive of the reset part after pressing the switching part. The method cooperates with the axial movement to realize the reset, so as to facilitate the next pressing.

Further, the end of the valve core away from the reset member has a limiter, the movable end of the pressing assembly is embedded in the end of the valve core away from the reset member, and the movable end of the pressing assembly can be pressed against the limiter in the axial direction.

It can be seen from the above description that the setting of the limiting member is used to generate axial support for the pressing member and the switching member, so that the communication state between the water inlet channel and the first water outlet channel can be maintained.

Further, a limit column for limiting the reset member is arranged in the water diversion assembly;

The reset piece is sleeved on the outside of the limit post.

It can be seen from the above description that the setting of the limit post is used to improve the stability of the reset member, so that the reset post is always arranged coaxially with the pressing component during the deformation process.

Further, the pressing assembly is relatively rotatably sheathed outside the end of the switching member away from the reset member.

Further, the pressing assembly includes a rotating part and a pressing part arranged coaxially;

In the circumferential direction of the rotating member, the rotating member has a first guide portion and a second guide portion arranged in sequence toward one end side wall of the pressing member;

In the axial direction of the rotating member, there is a height difference between the first guide part and the second guide part;

In the circumferential direction of the pressing part, the end of the pressing part facing the rotating part has a V-shaped guide groove. When the pressing part drives the rotating part to move along the axial direction of the rotating part, the rotating part rotates relative to the pressing part and the guide groove is aligned with the first The guide part or the second guide part press against each other.

It can be seen from the above description that the setting of the first guide part, the second guide part and the guide groove is used to limit and guide the rotating part when the relative rotation occurs between the pressing part and the rotating part, so as to improve the stability , and play a role in restricting the rotation direction of the rotating member.

A shower, comprising a holding device, a water outlet device and the above-mentioned water flow regulating device;

The water outlet device is installed at the water outlet end of the handle, and the water flow adjustment device is installed in the handle;

The water outlet device has a first water outlet chamber and a second water outlet chamber;

The first water outlet channel of the water flow regulating device communicates with the first water outlet chamber, and the second water outlet channel of the water flow regulating device communicates with the second water outlet chamber.

It can be seen from the above description that the water outlet device is installed at the end of the water inlet handle, and the water flow adjustment device is installed in the water inlet handle, so that the user can hold the water inlet handle to perform gear shifting operations, which reduces the difficulty of operation, and adopts Switching in the direction of pressing can avoid the inability to switch gears due to slippage of the user's hand during bathing, and the reliability is high.

Further, the water outlet device includes a first water outlet panel, a second water outlet panel and a water inlet cover arranged coaxially;

The water inlet cover plate has a first runner groove and a second runner groove;

The first water outlet panel and the first runner groove form a first water outlet chamber;

The second water outlet panel and the second flow channel groove form a second water outlet chamber.

It can be known from the above description that the arrangement of this structure can reduce the overall volume of the water outlet device, while ensuring the water outlet pressure.

Further, the water outlet assembly also includes a water outlet cover;

The water outlet cover is coaxially arranged with the water inlet cover, and the water outlet cover is clamped with the water inlet cover.

Further, the water inlet cover plate also has a first water inlet groove and a second water inlet groove;

The first water outlet channel communicates with the first water outlet chamber through the first water inlet tank;

The second water outlet channel communicates with the second water outlet chamber through the second water inlet tank;

The end of the first water inlet groove away from the first water outlet channel and the end of the second water inlet groove away from the second water outlet channel have guide surfaces that gradually rise up along the water inlet direction.

It can be seen from the above description that the setting of the diversion surface is used to guide the water flow and reduce the flow resistance of the water flow.

Please refer to Fig. 1-Fig. 11, embodiment one of the present invention is:

A shower head, comprising a holding device 1, a water outlet device 2, and a water flow regulating device 3; It has a first water outlet chamber 21 and a second water outlet chamber 22; the water flow adjustment device 3 includes a water diversion assembly 31, a water flow adjustment assembly 32, and a pressing assembly 33 coaxially arranged with the water flow adjustment assembly 32; the water diversion assembly 31 has a water inlet channel 311 , the first water outlet channel 312 and the second water outlet channel 313; the pressing assembly 33 is in transmission connection with the water flow adjustment assembly 32, and the water flow adjustment assembly 32 and the water diversion assembly 31 are vertically embedded in the water diversion assembly 31. When the water flow adjustment assembly 32 moves relative to the water distribution assembly 31 in the axial direction of the water flow adjustment assembly 32, the water inlet channel 311 communicates with the first water outlet channel 312 or communicates with the second water outlet channel 313; The water outlet chamber 21 is in communication, and the second water outlet channel 313 is in communication with the second water outlet chamber 22 . Among them, the first water outlet chamber 21 is arranged around the second water outlet chamber 22, the purpose is to make the water flowing out through the water inlet channel 311, the first water outlet channel 312 and the first water outlet chamber 21 produce radial splashes, and make the water flow through the water inlet channel successively 311. The water flow out of the second water outlet channel 313 and the second water outlet chamber 22 produces a concentrated spray water column, that is, the water flow out through the first water outlet chamber 21 is smaller than the water flow out through the second water outlet chamber 22 . bigger.

In this embodiment, the water outlet device 2 includes a coaxially arranged limiting column 23, a water outlet cover 24, a first water outlet panel 25, a second water outlet panel 26, and a water inlet cover 27; the water outlet cover 24 and the water inlet cover The plate 27 is arranged coaxially, and the water outlet cover plate 24 is clamped with the water inlet cover plate 27 to play the role of covering the ugly. The first water outlet panel 25 and the water inlet cover 27 form the first water outlet chamber 21; the second water outlet panel 26 and the water inlet cover 27 form the second water outlet chamber 22; wherein, the second water outlet panel 26 is sleeved on the limit column 23 Outside, the first water outlet panel 25 is sleeved outside the second water outlet panel 26, the first water outlet panel 25 has an annular water retaining groove 251 and a first water outlet column 252 communicating with the first water outlet chamber 21, and the water outlet cover plate 24 has a second outlet The water column 241 and the first annular rib 242 matched with the annular water retaining groove 251 and the second annular rib 243 sleeved outside the limiting column 23, and the surface of the second water outlet panel 26 has a surface that is positive to the second water outlet column 241 For the water outlet hole 261 that communicates with the second water outlet cavity 22, when the water outlet cover plate 24 is simultaneously covered on the first water outlet panel 25 and the second water outlet panel 26 and is sleeved outside the limiting column 23, the first water outlet column 252 is set through the water outlet cover plate 24 , and the water outlet hole 261 communicates with the second water outlet column 241 .

In this embodiment, the water inlet cover plate 27 also has a first water inlet groove 271 and a second water inlet groove 272; the first water outlet channel 312 communicates with the first water outlet chamber 21 through the first water inlet groove 271; the second water outlet channel 313 passes through The second water inlet groove 272 communicates with the second water outlet chamber 22; the first water inlet groove 271 is away from one end of the first water outlet channel 312 and the second water inlet groove 272 is away from the second water outlet channel 313. There is a guide that gradually lifts up along the water inlet direction. Flow surface 273.

In this embodiment, the end of the pressing component 33 away from the water flow regulating component 32 is located outside the holding device 1 , and the length of the pressing component 33 protruding outside the holding device 1 is 0.5 cm to 2 cm. Preferably, the length of the pressing component 33 protruding outside the holding device 1 is 1.3 cm, 1.4 cm, 1.5 cm, 1.6 cm, 1.7 cm or 1.8 cm.

In this embodiment, the water flow regulating assembly 32 includes a reset member 321, a valve core 322, and a switching member 323 arranged coaxially with the valve core 322; The inner walls of the component 31 are pressed against each other. Specifically, the end of the switching member 323 away from the pressing component 33 is provided with a receiving groove 3231 for receiving the reset member 321. Position rod 314, one end of reset member 321 is embedded in the receiving groove 3231, and the other end is sleeved outside the limit rod 314; the switching member 323 and the valve core 322 are relatively movable embedded in the valve core 322, and the switching member 323 is relatively rotatably connected with the pressing assembly 33 . Wherein, the reset member 321 is a compression spring.

In this embodiment, the switching member 323 is respectively provided with water retaining members 3232 in the axial direction; the water retaining members 3232 are against the inner wall of the valve core 322, and the water retaining members 3232 are used to block the water inlet channel 311 and the first water outlet channel 312 or block the water inlet channel 311 and the second water outlet channel 313.

In this embodiment, the switching member 323 has a guide ring 3233 at the end away from the pressing member 332 in the axial direction; on the axis of the switching member 323 , the guiding ring 3233 protrudes gradually along the direction of gradually approaching the pressing assembly 33 .

In this embodiment, the switching member 323 is covered with a seal ring 324 , and the seal ring 324 is interposed between the water retaining member 3232 and the guide portion, and the seal ring 324 is in interference fit with the inner wall of the valve core 322 .

In this embodiment, the pressing assembly 33 and the water flow adjustment assembly 32 can rotate relatively in the circumferential direction of the water flow adjustment assembly 32 . Specifically, the pressing assembly 33 includes a rotating member 331 and a pressing member 332 arranged coaxially; The first guide part 3311 and the second guide part 3312, the first guide part 3311 and the second guide part 3312 form a guide assembly 3313, and there is a first slot 3235 between adjacent guide assemblies 3313, corresponding to the inner wall of the valve core 322 A limit protrusion 3221 matching the first slot 3235 is provided; in the axial direction of the rotating member 331, there is a height difference between the first guide part 3311 and the second guide part 3312, and the first guide part 3311 A limiting groove 3236 is formed between the second guide part 3312; in the circumferential direction of the pressing member 332, the end of the pressing member 332 facing the rotating member 331 has a V-shaped guide groove 3321, and each guide groove 3321 is correspondingly arranged on one On the guide block 3322, a second slot 3323 is formed between adjacent guide blocks 3322, and the second slot 3323 can be fitted with the stop protrusion 3221, so that the pressing piece 332 is limited in the circumferential direction and can only Move along the axis. One end of the limit protrusion 3221 facing the reset member 321 has a guide slope 3222, which is used to cooperate with the first guide part 3311 or the second guide part 3312, so as to improve the smoothness of the relative rotation between the rotating part 331 and the pressing part 332 Spend.

When it is necessary to switch the communication relationship of the water inlet channel 311, the connection state of the water inlet channel 311 and the first water outlet channel 312 is taken as the initial state. In the groove 3323; the pressing part 332 drives the rotating part 331 to move along the axial direction of the rotating part 331, the rotating part 331 rotates relative to the pressing part 332 and the first guide part 3311 is embedded in the guide groove 3321, the first slot 3235 will be in the pressing part 332 moves axially relative to the stop protrusion 3221, and when the rotating member 331 receives axial pressure and moves to the end of the stroke, the first guide part 3311 will slide along the guide groove 3321 until the stop protrusion 3221 and the second One slot 3235 is separated, and the rotating member 331 continues to rotate until the first slot 3235 and the second slot 3323 are completely misaligned in the circumferential direction and stops rotating; when the pressure is removed, under the action of the reset member 321, the rotating member 331 Reset in the axial direction and keep different in the circumferential direction, so that the limiting protrusion 3221 is inserted into the limiting groove 3236, so that the rotating member 331 is simultaneously limited in the circumferential direction and the axial direction, and then the position of the switching member 323 is maintained. At this time, the communication relationship between the water inlet channel 311 and the second water outlet channel 313 is maintained.

In this embodiment, the end of the spool 322 away from the reset member 321 has a limiter 3237, and the movable end of the pressing assembly 33 is embedded in the end of the spool 322 away from the reset member 321, and the movable end of the pressing assembly 33 can be positioned on the shaft. Press upward against the limit piece 3237, the setting of the limit piece 3237 can make the movable end of the pressing assembly 33 always move in the valve core 322, the movable end of the pressing assembly 33 is the end where the pressing piece 332 is connected to the rotating piece 331 .

The working principle of this embodiment is:

Referring to Fig. 10, taking the connection state of the water inlet channel 311 and the first water outlet channel 312 as the initial state, the pressing member 332 is pressed, at this time, the rotating member 331 rotates relative to the pressing member 332 and the switching member 323, and the rotating member 331 drives The switching part 323 moves toward the side where the limit rod 314 is located, and the switching part 323 blocks the second water outlet channel 313. When the external force is removed, the reset part 321 pushes the switching part 323, the rotating part 331 and the pressing part 332 to move a certain distance in the axial direction. distance, but because the limit protrusion 3221 produces an axial limit on the rotating member 331, the axial position of the rotating member 331 and the switching member 323 is maintained. Referring to Figure 7, at this time, the water flow passes through the water inlet channel 311 in sequence , the second water outlet channel 313 and the first water outlet chamber 21 to form shower water;

Apply pressure to the pressing member 332, and the rotating member 331 rotates. Referring to FIG. When timing is correct, the rotating member 331 stops rotating and is removed with the external force. Under the push of the reset member 321, the rotating member 331, the switching member 323 and the pressing member 332 are reset in the axial direction, and the limiting protrusion 3221 is inserted into the first slot 3235 In this way, the second water outlet channel 313 is blocked. At this time, the water flows sequentially through the water inlet channel 311, the first water outlet channel 312 and the second water outlet chamber 22 to form a water column.

To sum up, the present invention provides a water flow regulating device and a shower, through the cooperation between the pressing part, the rotating part, the switching part and the reset part and the water diversion assembly, the water flow direction is perpendicular to the water inlet direction by pressing. The water outlet state can be switched in the same direction, compared with the prior art, it can be switched with one hand and has strong operability.

The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent transformations made by using the description of the present invention and the contents of the accompanying drawings, or directly or indirectly used in related technical fields, are all included in the same principle. Within the scope of patent protection of the present invention.

Claims (10)

1. The water flow regulating device is characterized by comprising a water diversion component, a water flow regulating component and a pressing component which is coaxially arranged with the water flow regulating component;

the water distribution assembly is provided with a water inlet channel, a first water outlet channel and a second water outlet channel;

the movable end of the pressing component is connected with the water flow regulating component in a relatively rotatable manner, and the control end of the pressing component is positioned outside the water flow regulating component;

the water flow adjusting assembly and the water diversion assembly are embedded in the water diversion assembly in a mutually perpendicular mode, and when the water flow adjusting assembly moves relative to the water diversion assembly, the water inlet channel changes the communication relation between the water inlet channel and the first water outlet channel and the water outlet channel.

2. A water flow regulating device as claimed in claim 1, wherein the water flow regulating assembly comprises a reset member, a valve core and a switching member coaxially disposed with the valve core;

the reset piece is embedded at one end of the switching piece far away from the pressing component and is propped against the inner wall of the water diversion component;

the switching piece and the valve core are embedded in the valve core in a relatively movable mode.

3. The water flow regulating device according to claim 2, wherein one end of the valve core, which is far away from the reset piece, is provided with a limiting piece, the movable end of the pressing component is embedded in one end of the valve core, which is far away from the reset piece, and the movable end of the pressing component can be propped against the limiting piece in the axial direction.

4. The water flow regulating device according to claim 2, wherein a limiting column for limiting the resetting piece is arranged in the water diversion component;

the resetting piece is sleeved outside the limiting column.

5. The water flow regulating device as claimed in claim 2, wherein the pressing assembly is rotatably sleeved outside one end of the switching member away from the reset member.

6. A water flow regulating device as claimed in claim 1, wherein said pressing assembly comprises a rotating member and a pressing member coaxially disposed;

the side wall of one end of the rotating piece, which faces the pressing piece, is provided with a first guide part and a second guide part which are sequentially arranged in the circumferential direction of the rotating piece;

a height difference is formed between the first guide part and the second guide part in the axial direction of the rotating member;

and in the circumferential direction of the pressing piece, one end of the pressing piece, which faces the rotating piece, is provided with a V-shaped guide groove, and when the pressing piece drives the rotating piece to move along the axial direction of the rotating piece, the rotating piece rotates relative to the pressing piece and the guide groove is propped against the first guide part or the second guide part.

7. A shower head comprising a holding device, characterized by further comprising a water outlet device and a water flow regulating device according to any one of claims 1-6;

the water outlet device is arranged at the water outlet end of the holding part, and the water flow regulating device is arranged in the holding part;

the water outlet device is internally provided with a first water outlet cavity and a second water outlet cavity;

the first water outlet channel of the water flow regulating device is communicated with the first water outlet cavity, and the second water outlet channel of the water flow regulating device is communicated with the second water outlet cavity.

8. The shower head of claim 7, wherein the water outlet means comprises a first water outlet panel, a second water outlet panel and a water inlet cover plate coaxially arranged;

the water inlet cover plate is provided with a first flow channel groove and a second flow channel groove;

the first water outlet panel and the first runner groove form the first water outlet cavity;

the second water outlet panel and the second runner groove form the second water outlet cavity.

9. The shower head of claim 8, wherein the water outlet assembly further comprises a water outlet cover plate;

the water outlet cover plate is coaxially arranged with the water inlet cover plate, and the water outlet cover plate is connected with the water inlet cover plate in a clamping mode.

10. The shower head of claim 7, wherein said water inlet cover plate further has a first water inlet channel and a second water inlet channel;

the first water outlet channel is communicated with the first water outlet cavity through the first water inlet groove;

the second water outlet channel is communicated with the second water outlet cavity through the second water inlet groove;

the first water inlet groove is far away from one end of the first water outlet channel and one end of the second water inlet groove is far away from the second water outlet channel, and a diversion surface gradually lifted along the water inlet direction is arranged at the first water inlet groove and the second water inlet groove.