A water outlet switching mechanism

Abstract

The present invention discloses a water outlet switching mechanism, which includes a housing, a switching switch, a valve body and a switching rod. An inlet cavity and at least two outlet cavities are formed in the housing. The valve body is correspondingly arranged with the outlet cavity, and a first through hole communicating the corresponding outlet cavity with the inlet cavity is provided on the valve body. The switching rod penetrates through the valve body, and a first sealing member is provided below the first through hole. The switching switch includes a button and a positioning seat, and a swing fulcrum is provided at the center of the bottom of the positioning seat. The button is hinged to the housing, the bottom of the button is in elastic contact with the positioning seat, and a driving part corresponding to the switching rod is formed on the upper part of the button. When any driving part is pressed, the corresponding switching rod and the first sealing member thereon move downward, so that the corresponding outlet cavity is communicated with the inlet cavity, and the positioning seat swings downward around the swing fulcrum in the accommodating cavity to the side away from the pressed driving part. The water outlet mode switching of the present invention is intuitive, easy and convenient, and has good structural stability.

Description

Technical Field

[0001] The present invention relates to the technical field of water outlet switching, and particularly to a water outlet switching mechanism. Background Art

[0002] Currently, shower heads generally have a single-button switching structure, which is simple to operate. However, consumers often press the button too far and miss the desired water outlet mode. This is because consumers often do not know how many times to press the button to select the desired water outlet mode. Pressing too quickly is likely to miss the desired water outlet mode. After missing the desired water outlet mode, it is necessary to press the button enough times in a cycle to select the desired functional water outlet, resulting in a poor user experience.

[0003] To facilitate the switching of water outlet modes, shower heads with multiple buttons have emerged on the market. Consumers can directly select the desired water outlet mode by pressing different buttons. However, in the existing multi-button switching structures, generally, multiple buttons are gathered in one operation area. The button operation feel is relatively tight and prone to jamming. Moreover, since the positions of several buttons are relatively close to each other, it is easy to cause misoperation. There are also some multi-button switching structures that, although set a certain distance between the positions of several buttons, obtaining a better switching feel, but have the problems of numerous parts, difficult assembly, and relatively poor product production stability. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a water outlet switching mechanism, which has an intuitive, easy and convenient water outlet mode switching and good structural stability.

[0005] To solve the above technical problem, the present invention provides a water outlet switching mechanism, including a housing, a switching switch provided on the housing, a valve body provided inside the housing, and a switching rod linked with the switching switch.

[0006] An inlet cavity and at least two outlet cavities are formed in the housing. The valve body is correspondingly arranged with the outlet cavities. A first through hole communicating the corresponding outlet cavity with the inlet cavity is provided on the valve body. The switching rod penetrates through the valve body, and a first sealing member is provided below the first through hole.

[0007] A first elastic reset member abutted against the switching rod is provided in the inlet cavity. When the switching switch is not pressed, the first elastic reset member makes the first sealing member block the first through hole.

[0008] The switching switch includes a button and a positioning seat. An accommodation cavity adapted to the positioning seat is formed on the housing. A swing fulcrum is provided at the center of the bottom of the positioning seat. The middle part of the button is hinged to the housing. The bottom of the button extends into the accommodation cavity and is in elastic contact with the positioning seat. A driving part corresponding to the switching rod is formed on the upper part of the button. When any driving part is pressed, the corresponding switching rod and the first seal on it move downward, so that the corresponding water outlet cavity communicates with the water inlet cavity, and the positioning seat swings downward around the swing fulcrum in the accommodation cavity to the side away from the pressed driving part.

[0009] As an improvement of the above solution, a limiting groove is formed on the top surface of the positioning seat. When the driving part is pressed to the bottom, the bottom of the button is in elastic contact with both the bottom and the wall of the limiting groove at the same time.

[0010] As an improvement of the above solution, the positioning seat is formed with support arms arranged around the swing fulcrum and corresponding to the driving parts one by one. When any driving part is pressed, the support arm on the side away from the pressed driving part abuts against the bottom surface of the accommodation cavity.

[0011] As an improvement of the above solution, the swing fulcrum is a protrusion formed at the center of the bottom of the positioning seat. The protrusion abuts against the bottom surface of the accommodation cavity, and the surface of the protrusion is a spherical surface or a conical surface.

[0012] As an improvement of the above solution, guide ribs are provided on the outer periphery of the protrusion. The guide ribs are located between two adjacent support arms, and the thickness of the guide ribs in the direction perpendicular to the bottom surface of the accommodation cavity does not exceed 2 / 3 of the thickness of the protrusion.

[0013] The bottom surface and the side wall of the guide rib are connected by chamfering or rounding, and the end surface and the bottom surface of the guide rib away from the protrusion are connected by rounding.

[0014] As an improvement of the above solution, the button includes a button body, a bushing seat and a pin. The bushing seat is provided with a hinge shaft that is movably hinged to the housing. The hinge shaft and the pin are arranged crosswise, and the button body is hinged to the bushing seat through the pin.

[0015] As an improvement of the above solution, the button body is provided with a guide cylinder with an open bottom. A third elastic reset member and a positioning pin are arranged in the guide cylinder. One end of the positioning pin abuts against the third elastic reset member, and the other end abuts against the positioning seat.

[0016] As an improvement of the above-mentioned solution, a second through hole connecting the water outlet chamber and the water inlet chamber is provided in the shell, and the valve body includes a valve seat provided in the water outlet chamber, a second elastic return member provided in the valve seat, and a second sealing member supported on the second through hole by the second elastic return member, and the second sealing member is sealed with the inner wall of the valve seat.

[0017] As an improvement of the above solution, a side of the second sealing member away from the second via hole is provided with an inner cavity for accommodating the second elastic reset member, and a cross-sectional area of ​​the inner cavity is larger than a cross-sectional area of ​​the second via hole.

[0018] As an improvement of the above solution, the second sealing member includes a sealing seat, an end face sealing gasket and a wall sealing ring, the wall sealing ring is sleeved on the outer circumference of the sealing seat, and the end face sealing gasket is arranged on the side of the sealing seat opposite to the second via hole.

[0019] As an improvement of the above solution, the first elastic return member is a tower spring, the inner diameter of the tower spring gradually decreases from bottom to top, and the switching rod is provided with a convex ring abutting against the top of the tower spring.

[0020] As an improvement of the above solution, the shell includes a base and an upper cover, the upper cover is sealed to the base, the water inlet chamber, the water outlet chamber and the accommodating chamber are formed on the base, and the button is hinged to the upper cover.

[0021] The implementation of the present invention has the following beneficial effects:

[0022] The present invention provides a water outlet switching mechanism, which is provided with a switching switch and a switching rod linked thereto, the switching rod is provided corresponding to the water outlet cavity, a driving part corresponding to the switching rod is formed on the button of the switching switch, and by pressing any driving part, the switching rod and a first sealing member thereon can be moved downward, and the first sealing member releases the blocking of the first through hole on the valve body, so that the corresponding water outlet cavity is connected with the water inlet cavity;

[0023] Pressing different driving parts on the button can switch water out of different water outlet chambers. The switching of water outlet modes is intuitive, which is convenient for users to choose the desired water outlet mode.

[0024] Only one set of switching switches needs to be assembled. By pressing different driving parts of the button, more than two water outlets can be switched, which simplifies the assembly of parts and facilitates assembly.

[0025] In addition, the button is hinged to the housing, and the bottom of the button is in elastic contact with the positioning seat. The positioning seat can swing with a swing fulcrum in the installation cavity. During the switching process, the driving part of the button is pressed and abuts against the switching rod. The button as a whole hinged to the housing deflects freely, and makes the positioning seat swing downward to the side away from the pressed driving part with the swing fulcrum as the center. The entire switching switch is in a balanced state, and the button will not be distorted or jammed, with good structural stability, high service life, and a very smooth and easy pressing process, making the switching effortless and with a good feel. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic three-dimensional structure diagram of an embodiment of a water outlet switching mechanism of the present invention;

[0027] Figure 2 is Figure 1 the front view of the base of

[0028] Figure 3 is Figure 2 the schematic cross-sectional structure diagram of A-A of

[0029] Figure 4 is Figure 1 the top view of the base of

[0030] Figure 5 is Figure 4 the schematic cross-sectional structure diagram of B-B of

[0031] Figure 6 is Figure 1 the exploded structure diagram of

[0032] Figure 7 is Figure 6 the first schematic three-dimensional diagram of the positioning seat of

[0033] Figure 8 is Figure 1 the top view of

[0034] Figure 9 is Figure 8 the schematic cross-sectional structure diagram of C-C of

[0035] Figure 10 is Figure 9 the enlarged structure diagram of part E of

[0036] Figure 11 is Figure 6 the second schematic three-dimensional structure diagram of the positioning seat of

[0037] Figure 12 is Figure 8 the schematic cross-sectional structure diagram of D-D of

[0038] Figure 13 isFigure 12 Schematic diagram of the enlarged structure of part F. Detailed implementation manners

[0039] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings.

[0040] As Figure 1 shown, an embodiment of a water outlet switching mechanism provided by the present invention includes a housing 1, a switching switch 2 provided on the housing 1, a valve body provided inside the housing 1, and a switching rod 4 linked with the switching switch 2. Combining Figures 2 to 5 , an inlet water chamber a and at least two outlet water chambers b are formed inside the housing 1. Combining Figure 6 , the valve body is correspondingly arranged with the outlet water chamber b. A first through hole 311 communicating the corresponding outlet water chamber b and the inlet water chamber a is provided on the valve body. The switching rod 4 penetrates through the valve body, and a first sealing member 5 is provided below the first through hole 311. A first elastic reset member 6 abutted against the switching rod 4 is provided inside the inlet water chamber a. The first elastic reset member 6 makes the first sealing member 5 block the first through hole 311 when the switching switch 2 is not pressed. The switching switch 2 includes a button 21 and a positioning seat 22. A receiving cavity c adapted to the positioning seat 22 is formed on the housing 1. Combining Figure 7 , a swing fulcrum 221 is provided at the center of the bottom of the positioning seat 22. The middle part of the button 21 is hinged to the housing 1. The bottom of the button 21 extends into the receiving cavity c and is in elastic contact with the positioning seat 22. A driving portion 21A corresponding to the switching rod 4 is formed on the upper part of the button 21. When any driving portion 21A is pressed, the corresponding switching rod 4 and the first sealing member 5 thereon move downward, so that the corresponding outlet water chamber b is communicated with the inlet water chamber a, and the positioning seat 22 swings downward around the swing fulcrum 221 in the receiving cavity c towards the side away from the pressed driving portion 21A.

[0041] In this embodiment, by providing a changeover switch 2 and a linkage changeover lever 4 corresponding thereto, the changeover lever 4 is arranged corresponding to the water outlet cavity b. A driving portion 21A corresponding to the changeover lever 4 is formed on the button 21 of the changeover switch 2. By pressing any one of the driving portions 21A, the changeover lever 4 and the first sealing member 5 thereon can be moved downward, and the first sealing member 5 releases the blockage of the first through hole 311 on the valve body, so that the corresponding water outlet cavity b communicates with the water inlet cavity a; pressing different driving portions 21A on the button 21 can switch the water outlet of different water outlet cavities b. The switching of the water outlet mode is intuitive, which is convenient for the user to select the desired water outlet mode; only one set of changeover switches 2 needs to be assembled. By pressing different driving portions 21A of the button 21, the switching of two or more water outlets can be realized, which simplifies the parts assembly and is convenient for assembly; in addition, the button 21 is hinged to the housing 1, the bottom of the button 21 is elastically in contact with the positioning seat 22, and the positioning seat 22 can swing with the swing fulcrum 221 in the installation cavity. During the switching process, the driving portion 21A of the button 21 is pressed and abuts against the changeover lever 4, and the whole button 21 hinged to the housing 1 deflects freely, and the positioning seat 22 swings downward away from the pressed driving portion 21A with the swing fulcrum 221 as the center. The whole changeover switch 2 is in a balanced state, and the button 21 will not be distorted or stuck, with good structural stability, high service life, and a very smooth and easy pressing process, and a good feel.

[0042] Specifically, the housing 1 includes a base 11 and an upper cover 12. The upper cover 12 is hermetically connected to the base 11. The water inlet cavity a, the water outlet cavity b, and the accommodation cavity c are all formed on the base 11, and the button 21 is hinged to the upper cover 12.

[0043] Combined with Figures 8 to 10 , the button 21 specifically includes a button body 211, a bushing seat 212, and a pin 213. An articulated shaft for movably hinging with the upper cover 12 is provided on the bushing seat 212. The articulated shaft and the pin 213 are arranged crosswise, and the button body 211 is hinged to the bushing seat 212 through the pin 213. The upper cover 12 is provided with a shaft hole 121 for installing the articulated shaft. To facilitate the free deflection of the button body 211, a preset distance is reserved in the shaft hole 121 along the pressing direction, so that the articulated shaft can generate a displacement along the pressing direction in the shaft hole 121.

[0044] The button body 211 is provided with a guiding cylinder 21B with an open bottom. The upper cover 12 is provided with a through hole for the guiding cylinder 21B of the button 21 to pass through. The guiding cylinder 21B extends into the accommodation cavity c through the bushing seat 212, and the pin 213 passes through the guiding cylinder 21B and the bushing seat 212. A third elastic reset member 214 and a positioning pin 215 are arranged in the guiding cylinder 21B. One end of the positioning pin 215 abuts against the third elastic reset member 214, and the other end abuts against the positioning seat 22.

[0045] When the driving part 21A is pressed to the bottom, the positioning seat 22 swings to an inclined state with the swing fulcrum 221 at the center of the bottom. Its top surface is an inclined plane, and there is a frictional force opposite to the elastic force of the first elastic reset member 6 between the positioning pin 215 at the bottom of the button 21 and this inclined plane. By roughening the inclined plane or the end surface of the positioning pin 215, this frictional force can be made greater than the elastic force of the first elastic reset member 6. Thus, when the driving part 21A is released, the driving part 21A of the button 21 and the switching rod 4 corresponding to the driving part 21A can also be kept at the current position, that is, the corresponding water outlet cavity b and the water inlet cavity a continue to be in communication.

[0046] Combined with Figure 11 , in this embodiment, a limiting groove 222 is formed on the top surface of the positioning seat 22. When the driving part 21A is pressed to the bottom, the bottom of the button 21 is elastically in contact with the bottom and the wall of the limiting groove 222 at the same time. This can limit the deflection angle of the whole button 21 to a certain extent when the driving part 21A is pressed down. When the pressure applied to the driving part 21A is too large, it can play a protective role to prevent the button 21 from deflecting greatly when the driving part 21A is under external heavy pressure, resulting in the breaking of the switching rod 4 and the failure of the water outlet switching structure.

[0047] The swing fulcrum 221 can be directly formed on the bottom surface of the accommodating cavity c of the base 11, or can be formed at the center of the bottom of the positioning seat 22. For the convenience of the forming and matching of the structure, the swing fulcrum 221 is preferably a protrusion formed at the center of the bottom of the positioning seat 22. The protrusion abuts against the bottom surface of the accommodating cavity c, and the surface of the protrusion is a spherical surface or a conical surface to ensure that the positioning seat 22 can swing freely when stressed at the top.

[0048] The positioning seat 22 is formed with support arms 223 arranged around the swing fulcrum 221 and corresponding to the driving parts 21A one by one. When any driving part 21A is pressed down, the support arm 223 on the side away from the pressed driving part 21A abuts against the bottom surface of the accommodating cavity c. The support arm 223 of the positioning seat 22 swinging downward, the pressed driving part 21A, and the switching rod 4 are located in the opposite direction of the guiding cylinder 21B.

[0049] It should be noted that when none of the driving parts 21A of the button 21 is pressed, the guiding cylinder 21B and the swing fulcrum 221 are located on the same straight line parallel to the switching rod 4.

[0050] A guiding rib 224 is provided on the outer periphery of the protrusion. The guiding rib 224 is located between two adjacent support arms 223. The thickness of the guiding rib 224 in the direction perpendicular to the bottom surface of the receiving cavity c does not exceed 2 / 3 of the thickness of the protrusion. The bottom surface and the side wall of the guiding rib 224 are connected by a chamfer or a fillet. The end surface and the bottom surface of the guiding rib 224 away from the protrusion are connected by a fillet. This guiding rib 224 helps the positioning seat 22 to quickly swing until the support arm 223 abuts against the bottom surface of the receiving cavity c.

[0051] Combined with Figure 12 and Figure 13 , a second through hole 111 communicating the water outlet cavity b and the water inlet cavity a is provided in the base 11. The valve body includes a valve seat 31 provided in the water outlet cavity b, a second elastic reset member 32 provided in the valve seat 31, and a second seal member 33 pressed against the second through hole 111 by the second elastic reset member 32. The second seal member 33 is sealed with the inner wall of the valve seat 31. A third seal member 7 for sealing connection with the upper cover 12 is provided at the top of the valve seat 31.

[0052] An inner cavity d for accommodating the second elastic reset member 32 is provided on one side of the second seal member 33 away from the second through hole 111. The first seal member 5 can prevent the water in the inner cavity d from directly entering the water outlet cavity b. The cross-sectional area of the inner cavity d is preferably larger than the cross-sectional area of the second through hole 111. When the water outlet cavity b and the water inlet cavity a are not communicated, since the cross-sectional area of the inner cavity d is larger than the water pressure on both sides of the second through hole 111, the pressure on the inner cavity d side acting on the second seal member 33 is greater than the pressure on the water inlet cavity a side. This pressure difference can help press the second seal member 33 against the end face of the second through hole 111 and rely on the water pressure difference for sealing, helping to prevent the water in the water inlet cavity a from directly entering the water outlet cavity b through the second through hole 111.

[0053] The second elastic reset member 32 can additionally provide the pressure to press the second seal member 33 against the end face of the second through hole 111, thereby preventing the problem of the sealing failure caused by the instantaneous fluctuation of the water pressure in the water inlet cavity a.

[0054] The second seal member 33 specifically includes a seal seat 331, an end face gasket 332 and a wall surface sealing ring 333. The wall surface sealing ring 333 is sleeved on the outer periphery of the seal seat 331. The end face gasket 332 is arranged on the side of the seal seat 331 opposite to the second through hole 111. The wall surface sealing ring 333 can prevent the water in the inner cavity d from directly entering the water outlet cavity b, and the end face gasket 332 can help prevent the water in the water inlet cavity a from directly entering the water outlet cavity b through the second through hole 111.

[0055] Since the rod diameter of the switching rod 4 is small, to ensure that the first elastic reset member 6 can stably abut between the switching rod 4 and the bottom of the water inlet cavity a, the first elastic reset member 6 in this embodiment is preferably a conical spring, the inner diameter of the conical spring gradually decreases from bottom to top, and a convex ring 41 is provided on the switching rod 4 for abutting against the top of the conical spring.

[0056] In this embodiment, the second seal 33 is matched with the switching rod 4 to achieve the sealing and plugging of the water outlet cavity b and the water inlet cavity a. The rod diameter of the switching rod 4 is small, and the bottom water pressure acting force received is small, so the water outlet switching can be realized with a smaller driving force, and the switching is easy and labor-saving.

[0057] When the water outlet switching mechanism of this embodiment is not conducting between the water outlet cavity b and the water inlet cavity a: Under the action of the conical spring, the first seal 5 on the switching rod 4 plugs the first through hole 311 of the seal seat 331. At this time, a closed area is formed between the water inlet cavity a and the inner cavity d in the seal seat 331. Since the cross-sectional area of the inner cavity d is larger than the cross-sectional area of the second through hole 111, it is inevitable that the end face gasket 332 and the seal seat 331 press against the end face of the second through hole 111 on the base 11, and rely on the water pressure difference for sealing, so that the water path in this state is in a closed state.

[0058] When the water outlet switching mechanism of this embodiment is conducting between the water outlet cavity b and the water inlet cavity a: Under the action of the switching force of the driving part 21A, the switching rod 4 moves downward, so that the first through hole 311 is opened, and the water flow in the inner cavity d flows out from the first through hole 311. Affected by the pressure relief of the above-mentioned closed area, the water inlet pressure of the water inlet cavity a is less than the water flow pressure in the inner cavity d. Under the action of the pressure difference, the end face gasket 332 and the seal seat 331 are pushed open, and the water flow in the water inlet cavity a directly flows into the specific water outlet cavity b through the second through hole 111, forming a water outlet state.

[0059] When the switching force of the driving part 21A is unloaded, there is a frictional force between the positioning pin 215 at the bottom of the button 21 and this inclined surface, and the component force of this frictional force opposite to the elastic force of the first elastic reset member 6 is greater than this elastic force, so that the button 21 and the switching rod 4 corresponding to the driving part 21A are kept at the current position, and the corresponding water outlet cavity b and the water inlet cavity a continue to be in communication.

[0060] The water outlet switching mechanism of this embodiment can be applied to handheld shower heads, head shower heads, and various valve structures.

[0061] The above is the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements are also regarded as the protection scope of the present invention.

Claims

1. An outlet switching mechanism, characterized in that, it includes a housing, a switching switch provided on the housing, a valve body provided inside the housing, and a switching rod linked to the switching switch, an inlet cavity and at least two outlet cavities are formed in the housing, the valve body is correspondingly arranged with the outlet cavity, a first through hole communicating the corresponding outlet cavity and the inlet cavity is provided on the valve body, the switching rod penetrates through the valve body, and a first sealing member is provided below the first through hole; a first elastic reset member abutted against the switching rod is arranged in the inlet cavity, and the first elastic reset member plugs the first through hole with the first sealing member when the switching switch is not pressed; the switching switch includes a button and a positioning seat, a receiving cavity adapted to the positioning seat is formed on the housing, a swing fulcrum is provided at the center of the bottom of the positioning seat, the swing fulcrum is a protrusion formed at the center of the bottom of the positioning seat, and the protrusion abuts against the bottom surface of the receiving cavity; the middle part of the button is hinged to the housing, the bottom of the button extends into the receiving cavity and is in elastic contact with the positioning seat, and a driving part corresponding to the switching rod is formed on the upper part of the button; when any driving part is pressed, the corresponding switching rod and the first sealing member thereon move downward, so that the corresponding outlet cavity communicates with the inlet cavity, and the positioning seat swings downward around the swing fulcrum in the receiving cavity towards the side away from the pressed driving part; the button includes a button body, a guiding cylinder with an open bottom is provided on the button body, a third elastic reset member and a positioning pin are arranged in the guiding cylinder, one end of the positioning pin abuts against the third elastic reset member, and the other end abuts against the positioning seat.

2. The outlet switching mechanism according to claim 1, characterized in that, a limiting groove is formed on the top surface of the positioning seat, and when the driving part is pressed to the bottom, the bottom of the button is simultaneously in elastic contact with the bottom and the wall of the limiting groove.

3. The outlet switching mechanism according to claim 1 or 2, characterized in that, the positioning seat is formed with support arms arranged around the swing fulcrum and corresponding to the driving parts one by one, and when any driving part is pressed, the support arm on the side away from the pressed driving part abuts against the bottom surface of the receiving cavity.

4. The outlet switching mechanism according to claim 1, characterized in that, the surface of the protrusion is a spherical surface or a conical surface.

5. The outlet switching mechanism according to claim 4, characterized in that, guide ribs are arranged on the outer periphery of the protrusion, the guide ribs are located in the middle of two adjacent support arms, and the thickness of the guide ribs in the direction perpendicular to the bottom surface of the receiving cavity does not exceed 2 / 3 of the thickness of the protrusion; the bottom surface and the side wall of the guide rib are connected by chamfering or rounding, and the end surface and the bottom surface of the guide rib away from the protrusion are connected by rounding.

6. The outlet switching mechanism according to claim 1, characterized in that, the button further includes a bushing seat and a pin, the bushing seat is provided with a hinge shaft movably hinged to the housing, the hinge shaft and the pin are arranged crosswise, and the button body is hinged to the bushing seat through the pin.

7. The outlet switching mechanism according to claim 1, characterized in that, A second through hole communicating the water outlet cavity and the water inlet cavity is provided in the housing. The valve body includes a valve seat provided in the water outlet cavity, a second elastic reset member provided in the valve seat, and a second sealing member abutted against the second through hole by the second elastic reset member. The second sealing member is sealed with the inner wall of the valve seat.

8. The water outlet switching mechanism according to claim 7, wherein, a cavity for accommodating the second elastic reset member is provided on a side of the second sealing member away from the second through hole, and a cross-sectional area of the cavity is larger than a cross-sectional area of the second through hole.

9. The water outlet switching mechanism according to claim 7 or 8, wherein, the second sealing member includes a sealing seat, an end face gasket and a wall surface sealing ring. The wall surface sealing ring is sleeved on an outer periphery of the sealing seat, and the end face gasket is arranged on a side of the sealing seat opposite to the second through hole.

10. The water outlet switching mechanism according to claim 1 or 2, wherein, the first elastic reset member is a conical spring, an inner diameter of the conical spring gradually decreases from bottom to top, and a convex ring abutted against a top of the conical spring is provided on the switching rod.

11. The water outlet switching mechanism according to claim 1 or 2, wherein, the housing includes a base and an upper cover. The upper cover is hermetically connected to the base. The water inlet cavity, the water outlet cavity and the accommodating cavity are formed on the base, and the button is hinged to the upper cover.

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