Distribution valve and intelligent closestool

Abstract

The utility model relates to the technical field of intelligent closestools, in particular to a distribution valve and an intelligent closestool. The dispensing valve includes a housing and a spool assembly. The shell is provided with a water passing cavity, a water inlet and a water outlet, and the water inlet is communicated with the water passing cavity; the shell comprises a sealing face, the sealing face partially defines a water passing cavity, a water outlet hole is formed in the sealing face of the shell, and the water outlet hole is communicated with the water outlet. The valve element assembly comprises a transmission shaft, a valve plate and a first elastic piece, the valve plate is provided with a water through hole, the water through hole communicates with the water through cavity, and the transmission shaft is used for driving the valve plate to rotate relative to the shell so that the water through hole can communicate with or be isolated from the water outlet hole. The transmission shaft comprises a first abutting ring face, the valve element assembly further comprises a sliding ring, and the first elastic piece exerts elastic acting force on the transmission shaft so that the sliding ring can be clamped between the first abutting ring face and the inner wall of the shell. In this way, the sliding ring resists the elastic acting force of the first elastic piece on the transmission shaft, and the problem that the valve element assembly is large in twisting resistance is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent toilet, and in particular to a distribution valve and an intelligent toilet. BACKGROUND

[0002] The intelligent toilet can be said to be a hot topic in the bathroom industry. It replaces toilet paper with water washing, triggering a bathroom revolution. Technology, convenience and hygiene are the trends in the future development of the bathroom. The intelligent toilet cleans through water flow. The size, direction and impact force of the water flow, as well as the temperature of the water flow, can be adjusted.

[0003] Among them, for the electric-free toilet, the valve core of the distribution valve is manually rotated to adjust the waterway and the size of the water flow. The distribution valve includes two ceramic sheets, which are tightly pressed together by a spring. In order to improve water leakage, the spring force is usually large, which causes the valve core of the distribution valve to have large rotation resistance, affecting the user experience. CONTENT OF THE UTILITY MODEL

[0004] Embodiments of the present application aim to provide a distribution valve and an intelligent toilet to at least improve the problem of large rotation resistance of the valve core of the distribution valve.

[0005] In order to solve the above technical problems, the embodiments of the present application adopt the following technical solutions:

[0006] In a first aspect, the embodiments of the present application provide a distribution valve, which includes a housing and a valve core assembly. The housing is provided with a water passage, a water inlet and a water outlet, and the water inlet is in communication with the water passage. The housing includes a sealing surface, the sealing surface partially defines the water passage, and the housing is provided with a water outlet hole at the sealing surface, and the water outlet hole is in communication with the water outlet. The valve core assembly includes a transmission shaft, a valve plate and a first elastic member. The transmission shaft is rotatably arranged in the housing, the valve plate is arranged on the transmission shaft in an axially slidable manner, and the first elastic member is arranged on the transmission shaft and abuts against one side of the valve plate away from the sealing surface, so that the valve plate abuts against the sealing surface. The valve plate is provided with a water passage hole, the water passage hole is in communication with the water passage, and the transmission shaft is used to drive the valve plate to rotate relative to the housing, so that the water passage hole is in communication with or isolated from the water outlet hole. The transmission shaft includes a first abutting annular surface, and the valve core assembly further includes a sliding ring. The first elastic member applies an elastic force to the transmission shaft, so that the sliding ring is clamped between the first abutting surface and the inner wall of the housing.

[0007] In some embodiments, the housing includes a second abutting annular surface arranged opposite to the first abutting annular surface, and the sliding ring is clamped between the first abutting annular surface and the second abutting annular surface.

[0008] In some embodiments, the transmission shaft is provided with a plurality of insertion grooves at one end thereof, which are arranged along the circumference of the transmission shaft. The valve plate is provided with a plurality of insertion ribs on the side thereof away from the sealing surface, which are arranged along the circumference of the transmission shaft, and each of the insertion ribs is inserted into one of the insertion grooves, so that the transmission shaft can drive the valve plate to rotate synchronously, and the valve plate can slide axially relative to the transmission shaft.

[0009] In some embodiments, the housing comprises a first shell and a second shell, which are detachably connected and enclose the water passage. The first shell is provided with a first mounting groove, and the bottom of the first mounting groove is provided with a clearance hole. One end of the transmission shaft is arranged in the first mounting groove, and the other end of the transmission shaft extends out of the housing through the clearance hole. The valve plate is arranged in the first mounting groove.

[0010] In some embodiments, the first shell is provided with a flow passage on the outer wall of the first mounting groove, which extends along the circumference of the transmission shaft. The first shell is provided with a plurality of flow holes, which are arranged along the circumference of the transmission shaft. The flow holes communicate the flow passage with the first mounting groove. The water inlet is arranged on the second shell, and the second shell is provided with a second mounting groove, which communicates with the water inlet. One end of the first mounting groove of the first shell is arranged in the second mounting groove, so as to communicate the water inlet with the flow passage.

[0011] In some embodiments, the housing further comprises a water distribution plate and a sealing plate. The water distribution plate is provided with the sealing surface and the water outlet, and is arranged at least partially in the first mounting groove. The sealing plate is clamped between the second shell and the water distribution plate. The second shell is provided with the water outlet, and the sealing plate is provided with a through hole, which communicates the water outlet with the water outlet.

[0012] In some embodiments, the first shell is provided with a first limiting protrusion on the inner wall of the first mounting groove, and the outer circumferential surface of the water distribution plate is provided with a first limiting groove. The first limiting protrusion is arranged at least partially in the first limiting groove, so as to limit the installation angle of the water distribution plate relative to the first shell around the axis of the transmission shaft.

[0013] In some embodiments, the second shell is provided with a second mounting groove, and the sealing plate is arranged in the second mounting groove. The second shell is provided with a second limiting protrusion on the inner wall of the second mounting groove, and the outer circumferential surface of the sealing plate is provided with a second limiting groove. The second limiting protrusion is arranged at least partially in the second limiting groove, so as to limit the installation angle of the sealing plate relative to the second shell around the axis of the transmission shaft.

[0014] In some embodiments, the distributing valve also includes a knob and a ball assembly, the knob is connected to one end of the transmission shaft extending out of the shell, and a plurality of locking grooves are provided on the side of the knob facing the shell, and the plurality of locking grooves are arranged circumferentially around the transmission shaft. The ball assembly is abutted against the bottom of one of the locking grooves, and the ball assembly is used to abut against the bottom of another locking groove when the knob is rotated.

[0015] In some embodiments, the shell is provided with a water inlet pipe, which is connected to the water inlet. The distributing valve also includes a flow limiting component, which is arranged in the water inlet pipe. The flow limiting component is used to reduce the pressure of the fluid entering the water cavity and reduce the flow rate of the fluid entering the water cavity.

[0016] In some embodiments, the shell is provided with a water outlet pipe, which is connected to the water outlet. The distribution valve also includes an air isolation component, which is connected to the water outlet pipe. The air isolation component is used to connect to an external pipeline so that the fluid in the water outlet pipe flows to the external pipeline and prevents the gas in the external pipeline from flowing into the water outlet pipe.

[0017] In a second aspect, an embodiment of the present application provides a smart toilet, which includes a distribution valve as described in any one of the above items.

[0018] The distribution valve and smart toilet of the embodiment of the present application are provided with a slip ring between the transmission shaft and the shell, and the slip ring resists the elastic force of the first elastic member on the transmission shaft, which is beneficial to improving the problem of large twisting resistance of the valve core assembly of the distribution valve due to the large elastic force of the first elastic member, thereby improving the user experience.

[0019] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0021] Figure 1 is a structural diagram of a distribution valve according to an embodiment of the present application;

[0022] Figure 2 is an exploded view of a dispensing valve according to an embodiment of the present application;

[0023] Figure 3 is another exploded view of the distribution valve of the embodiment of the present application;

[0024] Figure 4 is a partial enlarged view of the sectional view of the distribution valve of the embodiment of the present application;

[0025] Figure 5 is an exploded view of the partial structure of the distribution valve of the embodiment of the present application;

[0026] Figure 6 is another exploded view of the partial structure of the distribution valve of the embodiment of the present application;

[0027] Figure 7 is Figure 2 is a structural schematic view of the second shell in the embodiment of the present application;

[0028] Figure 8 is a perspective view of the water distribution plate and the valve plate cooperation of the embodiment of the present application;

[0029] Figure 9 is a partial enlarged view of the sectional view of the distribution valve of the embodiment of the present application;

[0030] Figure 10 is Figure 2 is an exploded view of the flow limiting assembly in the embodiment of the present application;

[0031] Figure 11 is a partial enlarged view of the sectional view of the distribution valve of the embodiment of the present application.

[0032] The reference signs in the detailed description of the embodiments are as follows:

[0033] 100, distribution valve;

[0034] 1, shell; 1a, water passage cavity;

[0035] 11, first shell; 111, second abutting annular surface; 112, avoiding hole; 113, first mounting groove; 114, flow passage; 115, flow hole; 116, first limiting protrusion; 117, third mounting groove;

[0036] 12, second shell; 121, water inlet; 122, water outlet; 123, second mounting groove; 124, water inlet pipe; 125, water outlet pipe; 126, second limiting protrusion;

[0037] 13, first sealing ring; 14, second sealing ring;

[0038] 15, water distribution plate; 151, sealing surface; 152, water outlet hole; 153, first limiting groove;

[0039] 16, sealing plate; 161, through hole; 162, second limiting groove;

[0040] 2. valve core assembly;

[0041] 21. transmission shaft; 211. first limiting hole; 212. first abutting annular surface; 213. insertion slot;

[0042] 22. valve plate; 221. water passing hole; 222. insertion rib;

[0043] 23. first elastic member; 24. sliding ring;

[0044] 3. knob; 31. locking groove;

[0045] 4. wave bead assembly; 41. bead; 42. second elastic member;

[0046] 5. flow limiting assembly; 51. first flow limiting member; 511. first through hole; 512. clamping hook; 513. mounting column; 52. second flow limiting member; 521. second through hole; 5a. flow limiting cavity; 53. third sealing ring; 54. fourth sealing ring; 55. check piece; 551. first mounting hole; 56. anti-blocking member; 561. second mounting hole;

[0047] 6. air isolation assembly; 61. third shell; 611. fourth mounting slot; 612. connecting port; 613. connecting pipe; 62. movable valve core; 63. fifth sealing ring; 64. fourth shell; 641. exhaust pipe; 65. sixth sealing ring. DETAILED DESCRIPTION

[0048] In order to facilitate the understanding of the present application, the present application will be described in more detail below in conjunction with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element or there can be one or more intervening elements therebetween. When an element is described as "connected to" another element, it can be directly connected to the other element or there can be one or more intervening elements therebetween.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this application; the terms "include" and "have" and any variations thereof used in the specification and claims of this application and the above description of the drawings are intended to cover the inclusion not the exclusion of one or more elements.

[0050] In the description of the embodiments of the present application, the orientations or positional relationships indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like are based on the orientations or positional relationships shown in the drawings, and are merely for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0051] In the description of the embodiments of the present application, the terms "first", "second", and the like are used to limit parts, and are merely for the purpose of distinguishing the corresponding parts, and have no special meaning unless otherwise stated, and therefore cannot be understood as limiting the scope of protection of the present application. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.

[0052] Unless otherwise defined, all technical and scientific terms used in the specification are the same as those commonly understood by those skilled in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments and are not used to limit the present application. The term "and / or" used in the specification includes any and all combinations of one or more related listed items.

[0053] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0054] In a first aspect, referring to Figures 1 to 3 The embodiments of the present application provide a distribution valve 100, which comprises a housing 1 and a valve core assembly 2. The valve core assembly 2 is rotatably arranged in the housing 1, and the valve core assembly 2 is used to rotate relative to the housing 1 to change the water path in the housing 1.

[0055] It should be noted that in the embodiments of the present application, the fluid flowing into the distribution valve 100 is taken as water, and in some other embodiments, the fluid can also be oil, water-oil mixture, cleaning agent, cleaning agent-water mixture, etc., which is not limited here.

[0056] For the above-mentioned housing 1, referring to Figures 2 to 4The shell 1 is provided with a water passage 1a, a water inlet 121 and a water outlet 122. The water inlet 121 is in communication with the water passage 1a. The shell 1 comprises a sealing surface 151 which partially defines the water passage 1a. The shell 1 is provided with a water outlet hole 152 at the sealing surface 151. The water outlet hole 152 is in communication with the water outlet 122. Specifically, the water inlet 121 and the water outlet 122 are both in communication with the water passage 1a. The inner wall of the shell 1 comprises the sealing surface 151. The water outlet hole 152 is formed at the sealing surface 151 and is in communication with the water outlet hole 152. Thus, water can flow into the water passage 1a from the water inlet 121 and can flow out of the water passage 1a from the water outlet hole 152 to the water outlet 122.

[0057] In some embodiments, referring to Figures 2 to 4 The shell 1 comprises a first shell 11 and a second shell 12. The first shell 11 and the second shell 12 are detachably connected. The first shell 11 and the second shell 12 surround to form the water passage 1a. Specifically, the second shell 12 is provided with a second mounting groove 123. The first shell 11 seals the opening of the second mounting groove 123, thereby surrounding to form the water passage 1a. Optionally, the first shell 11 and the second shell 12 are detachably connected by screws, facilitating disassembly and assembly of the distribution valve 100. Optionally, the shell 1 comprises a first sealing ring 13. The first sealing ring 13 is clamped between the first shell 11 and the second shell 12 to increase the sealing effect between the first shell 11 and the second shell 12 and enhance the sealing effect of the water passage 1a.

[0058] Referring to Figures 2 to 4 The shell 1 is provided with a water inlet pipe 124 which is in communication with the water inlet 121, facilitating connection of the water inlet 121 with an external pipe. Similarly, the shell 1 is provided with a water outlet pipe 125 which is in communication with the water outlet 122, facilitating connection of the water outlet pipe 125 with an external pipe. In the embodiments of the present application, the water inlet 121 and the water outlet 122 are both arranged on the second shell 12. Therefore, the water inlet pipe 124 and the water outlet pipe 125 are both arranged on the second shell 12. The sealing surface 151 and the water outlet hole 152 are also arranged on the second shell 12. The water inlet 121 and the water outlet hole 152 are both in communication with the second mounting groove 123.

[0059] In some embodiments, the sealing surface 151 and the water outlet hole 152 are arranged on the inner wall of the second shell 12. The water outlet hole 152 is in communication with the water outlet 122 in the second shell 12. In other embodiments, referring to Figures 4 to 6The shell 1 further comprises a water distribution plate 15 provided with a sealing surface 151 and a water outlet hole 152, the water outlet hole 152 of the water distribution plate 15 being in communication with the water outlet 122 of the second shell 12. In the embodiment, the sealing surface 151 is used to cooperate with the valve core assembly 2 to change the water path in the shell 1, and the water distribution plate 15 and the second shell 12 are respectively manufactured, and the water distribution plate 15 and the second shell 12 can be made of different materials, for example, the water distribution plate 15 is made of ceramic material, which is beneficial to improve the sealing effect between the water distribution plate 15 and the valve core assembly 2, and make the sealing surface 151 have better wear resistance. When the sealing surface 151 is seriously worn, the water distribution plate 15 can be replaced without replacing the second shell 12, which is beneficial to reduce the maintenance cost.

[0060] It can be understood that the water outlet hole 152 on the water distribution plate 15 penetrates to the side away from the sealing surface 151, and the water distribution plate 15 abuts against the inner wall of the second shell 12 to communicate the water outlet 122 with the water outlet hole 152. In order to further improve the sealing between the water outlet 122 and the water outlet hole 152, in some embodiments, please refer to Figures 5 to 7 The shell 1 further comprises a sealing plate 16 clamped between the second shell 12 and the water distribution plate 15, and the sealing plate 16 is provided with a through hole 161 in communication with the water outlet 122 and the water outlet hole 152. The sealing plate 16 is elastic, and the water outlet 122 and the water outlet hole 152 are both sealed and communicated with the through hole 161, thereby improving the sealing between the water outlet 122 and the water outlet hole 152. Optionally, the sealing plate 16 is made of rubber material, silica gel material or the like.

[0061] For the above-mentioned valve core assembly 2, please refer to Figures 4 to 6The valve core assembly 2 comprises a transmission shaft 21, a valve plate 22 and a first elastic member 23. The transmission shaft 21 is rotatably arranged in the housing 1. The valve plate 22 is arranged on the transmission shaft 21 in a slidable manner along the axial direction of the transmission shaft 21. The first elastic member 23 is arranged on the transmission shaft 21 and abuts against a side of the valve plate 22 away from the sealing surface 151, so that the valve plate 22 abuts against the sealing surface 151. The valve plate 22 is provided with a water passing hole 221 which is in communication with the water passing cavity la. The transmission shaft 21 is used to drive the valve plate 22 to rotate relative to the housing 1, so as to make the water passing hole 221 communicate with or be isolated from the water outlet hole 152. It can be understood that when the valve plate 22 rotates to any angle relative to the housing 1, the valve plate 22 abuts against the sealing surface 151, and the first elastic member 23 makes the valve plate 22 have a certain pressure with the sealing surface 151, so that when the water passing hole 221 is isolated from the water outlet hole 152, the water outlet hole 152 is sealed by the valve plate 22, so as to prevent the water flow in the water passing cavity la from flowing to the water outlet 122. When the valve plate 22 rotates to make the water passing hole 221 communicate with the water outlet hole 152, the water passing cavity la is in communication with the water outlet hole 152 and the water outlet 122 through the water passing hole 221, and the water flow in the water passing cavity la can flow to the water outlet 122. Optionally, the first elastic member 23 is a straight spring.

[0062] Please refer to Figure 4 and Figure 6 The transmission shaft 21 is provided with a first limiting hole 211, and one end of the first elastic member 23 is arranged in the first limiting hole 211, so as to limit the position of the first elastic member 23 relative to the transmission shaft 21. This facilitates the assembly of the valve core assembly 2 and improves the problem that the first elastic member 23 deviates relative to the transmission shaft 21 and the valve plate 22 during the working process of the valve core assembly 2, so that the first elastic member 23 is stably supported between the transmission shaft 21 and the valve plate 22.

[0063] It should be noted that the elastic force of the first elastic member 23 on the transmission shaft 21 makes the transmission shaft 21 abut against the inner wall of the housing 1. In order to increase the sealing effect of the valve plate 22 on the water outlet hole 152, the first elastic member 23 usually has a large elasticity, so that the transmission shaft 21 has a large pressure with the inner wall of the housing 1, resulting in a large resistance when the transmission shaft 21 rotates relative to the housing 1, and the valve core assembly 2 is difficult to be screwed. In order to solve this problem, in some embodiments, please refer to Figure 4 and Figure 5The transmission shaft 21 comprises a first abutting annular surface 212, and the valve core assembly 2 further comprises a sliding ring 24. The first elastic member 23 exerts an elastic force on the transmission shaft 21, so that the sliding ring 24 is clamped between the first abutting surface and the inner wall of the housing 1. By supporting the transmission shaft 21 and the inner wall of the housing 1 through the sliding ring 24, the friction between the two is reduced, and the problem of difficult rotation of the valve core assembly 2 is improved. Optionally, the sliding ring 24 is made of PVC (Polyvinyl chloride), which has good wear resistance and low friction coefficient. Optionally, the roughness of the first abutting annular surface 212 is lower than the average roughness of the transmission shaft 21, for example, the first abutting annular surface 212 is polished to be smoother.

[0064] Further, the valve plate 22 is made of ceramic material, which is beneficial to reduce the friction between the valve plate 22 and the sealing surface 151, and has better wear resistance. Optionally, the sealing surface 151 is a flat surface, and the side of the valve plate 22 in contact with the sealing surface 151 is also a flat surface. The valve plate 22 and the sealing surface 151 are in smooth contact, which is beneficial to reduce the friction between the two. Further, the water distribution plate 15 is made of ceramic material, which is beneficial to reduce the friction between the valve plate 22 and the water distribution plate 15, and the water distribution plate 15 has better wear resistance.

[0065] In some embodiments, referring to Figure 3 The housing 1 comprises a second abutting annular surface 111 opposite to the first abutting annular surface 212, and the sliding ring 24 is clamped between the first abutting annular surface 212 and the second abutting annular surface 111. It can be understood that the second abutting surface is matched with the sliding ring 24, which is beneficial to increase the flatness of the contact surface between the housing 1 and the sliding ring 24, thereby reducing the friction between the sliding ring 24 and the housing 1. Optionally, the roughness of the second abutting annular surface 111 is lower than the average roughness of the housing 1, for example, the second abutting annular surface 111 is polished to be smoother. In the embodiments of the present application, the second abutting surface is arranged on the first housing 11.

[0066] For the connection between the valve plate 22 and the transmission shaft 21, in some embodiments, referring to Figure 5 and Figure 6The one end of the transmission shaft 21 towards the sealing surface 151 is provided with a plurality of insertion grooves 213, and the plurality of insertion grooves 213 are arranged along the circumference of the transmission shaft 21. The side of the valve plate 22 away from the sealing surface 151 is provided with a plurality of insertion ribs 222, and the plurality of insertion ribs 222 are arranged along the circumference of the transmission shaft 21. Each insertion rib 222 is correspondingly inserted into one insertion groove 213. In this way, the transmission shaft 21 can drive the valve plate 22 to rotate synchronously, and the insertion rib 222 can slide in the depth direction of the insertion groove 213, that is, the valve plate 22 can slide axially relative to the transmission shaft 21. When assembling the valve plate 22 and the transmission shaft 21, the valve plate 22 is first moved to the position where the central axis coincides with the central axis of the transmission shaft 21, and then the transmission shaft 21 is rotated relative to the valve plate 22, so that each insertion rib 222 is correspondingly inserted into one insertion groove 213. The valve plate 22 and the transmission shaft 21 are convenient to assemble. When disassembling the valve plate 22 and the transmission shaft 21, only the valve plate 22 needs to be moved away from the transmission shaft 21, so the valve plate 22 and the transmission shaft 21 are convenient to disassemble.

[0067] In some embodiments, referring to Figure 5 The number of insertion ribs 222 is one less than the number of insertion grooves 213. Among the plurality of positions on the valve plate 22 corresponding to the insertion grooves 213, the water passage hole 221 is arranged at the position where the insertion rib 222 is not arranged on the valve plate 22. Therefore, the water flow can flow from the insertion groove 213 between the valve plate 22 and the transmission shaft 21 and into the water passage hole 221, which is beneficial to increase the cross-sectional area of the passage between the water passage hole 221 and the first mounting groove 113 and increase the flow rate of the water flow from the first mounting groove 113 into the water passage hole 221.

[0068] It can be understood that one end of the transmission shaft 21 protrudes out of the housing 1. For example, referring to Figures 2 to 4 The first shell 11 is provided with a avoiding hole 112, one end of the transmission shaft 21 is arranged in the water passage cavity 1a, and the other end of the transmission shaft 21 protrudes out of the housing 1 through the avoiding hole 112. In this embodiment, the first shell 11 is provided with the first mounting groove 113, and the first shell 11 is provided with the avoiding hole 112 at the bottom of the first mounting groove 113. One end of the transmission shaft 21 is arranged in the first mounting groove 113, and the valve plate 22 is arranged in the first mounting groove 113. Therefore, when assembling the distribution valve 100, the valve plate 22 can be placed in the first mounting groove 113, which is beneficial to limit the position of the valve plate 22 and facilitate the assembly of the distribution valve 100. The second abutting annular surface 111 is located on the inner wall of the first mounting groove 113. Optionally, the housing 1 comprises a second sealing ring 14, and the second sealing ring 14 is clamped between the first shell 11 and the transmission shaft 21 to increase the sealing effect between the first shell 11 and the transmission shaft 21.

[0069] Since the side of the valve plate 22 away from the sealing surface 151 needs to be communicated with the water passage 1a, and in the embodiment, the valve plate 22 is arranged in the first installation groove 113, and in the above embodiment, the water inlet 121 is arranged in the second shell 12, and the water inlet 121 is communicated with the second installation groove 123. Therefore, the first installation groove 113 is separated from the water inlet 121 by the valve plate 22, and the valve plate 22 is communicated with the water passage 1a through the gap between the valve plate 22 and the inner wall of the first installation groove 113, which causes the passage to be relatively narrow, and the flow rate of the water flowing out of the water outlet 122 is low. To improve this problem, in some embodiments, please refer to Figures 2 to 4 , the first shell 11 is provided with a flow-through groove 114 on the outer wall of the first installation groove 113, and the flow-through groove 114 extends circumferentially along the transmission shaft 21; one end of the first shell 11 provided with the first installation groove 113 is arranged in the second installation groove 123. Therefore, the water inlet 121 is communicated with the flow-through groove 114. Moreover, the first shell 11 is provided with a plurality of flow-through holes 115, and the plurality of flow-through holes 115 are arranged circumferentially along the transmission shaft 21 at intervals, and the flow-through holes 115 communicate the flow-through groove 114 with the first installation groove 113. Therefore, the water inlet 121 is communicated with the first installation groove 113, and the side of the valve plate 22 away from the sealing surface 151, and then the water inlet 121 is communicated with the water passage 221, which increases the cross-sectional area of the passage between the first installation groove 113 and the water passage 1a, and increases the flow rate of the water flowing from the water passage 1a into the first installation groove 113.

[0070] In some embodiments, please refer to Figures 4 to 6 , the water distribution plate 15 is at least partially arranged in the first installation groove 113. By arranging the water distribution plate 15 partially in the first installation groove 113, it is beneficial to limit the position of the valve plate 22 relative to the sealing surface 151, facilitate the assembly of the distribution valve 100, and improve the problem that the valve plate 22 is not abutted to the sealing surface 151 during installation, improve the problem that the rotation of the valve plate 22 relative to the water distribution plate 15 causes the valve plate 22 to deviate from the water distribution plate 15, and improve the stability of the operation of the distribution valve 100.

[0071] In some embodiments, please refer to Figures 3 to 5The first limiting protrusion 116 is at least partially arranged in the first limiting groove 153 to limit the installation angle of the water distribution plate 15 relative to the first shell 11 about the axis of the transmission shaft 21. By limiting the installation angle of the water distribution plate 15 relative to the first shell 11, the water distribution plate 15 is facilitated to be installed on the first shell 11, and the problem that the water distribution plate 15 is prone to installation angle error is improved. Moreover, the water distribution plate 15 is prevented from rotating relative to the first shell 11, so that when the valve plate 22 rotates relative to the shell 1, the valve plate 22 rotates relative to the sealing surface 151, and the distribution valve 100 can work normally. The number of the first limiting protrusions 116 can be multiple, and the number of the first limiting grooves 153 can also be multiple to enhance the limiting effect. When the number of the first limiting protrusions 116 is two, and the two first limiting protrusions 116 are symmetrically arranged, the sizes of the two first limiting protrusions 116 are different to improve the problem that the water distribution plate 15 is prone to installation angle error of 180 degrees.

[0072] In some embodiments, referring to Figures 5 to 7 , the sealing plate 16 is arranged in the second installation groove 123, and the second shell 12 is provided with a second limiting protrusion 126 on the inner wall of the second installation groove 123. The outer periphery of the sealing plate 16 is provided with a second limiting groove 162, and the second limiting protrusion 126 is at least partially arranged in the second limiting groove 162 to limit the installation angle of the sealing plate 16 relative to the second shell 12 about the axis of the transmission shaft 21. By limiting the installation angle of the sealing plate 16 relative to the second shell 12, the sealing plate 16 is facilitated to be installed on the second shell 12, and the problem that the second shell 12 is prone to installation angle error is improved. The number of the second limiting protrusions 126 can be multiple, and the number of the second limiting grooves 162 can also be multiple to enhance the limiting effect. When the number of the second limiting protrusions 126 is two, and the two second limiting protrusions 126 are symmetrically arranged, the sizes of the two second limiting protrusions 126 are different to improve the problem that the sealing plate 16 is prone to installation angle error of 180 degrees.

[0073] In some embodiments, referring to Figure 5 , Figure 6 and Figure 8 , the number of the water outlet holes 152 is multiple, and the number of the water outlets 122 is also multiple. By rotating the valve plate 22, the water flow in the water passage 1a can flow to different water outlets 122 when the water passage hole 221 is in communication with different water outlet holes 152, so as to switch the water flow path.

[0074] It can be understood that, as viewed in a direction perpendicular to the valve plate 22, referring to Figure 8When the projection of the water outlet hole 152 overlaps with the water through hole 221, the valve plate 22 rotates relative to the sealing surface 151 to change the overlapping area of ​​the projection of the water outlet hole 152 and the water through hole 221, thereby adjusting the water flow size of the water outlet 122 and playing the role of water flow regulation.

[0075] In some embodiments, see Figure 8 , along the motion trajectory of the water hole 221, Figure 5 In the counterclockwise direction, the width of the water outlet 152 gradually decreases. Observing from the direction perpendicular to the valve plate 22, when the projection of the wider part of the water outlet 152 overlaps with the edge of the water through hole 221, the valve plate 22 is rotated relative to the sealing surface 151, and the water flow at the water outlet 122 changes rapidly; when the projection of the narrower part of the water outlet 152 overlaps with the edge of the water through hole 221, the valve plate 22 is rotated relative to the sealing surface 151, and the water flow at the water outlet 122 changes slowly. That is, Figure 5 For example, when the valve plate 22 is rotated counterclockwise until the water outlet 152 is connected to the water through hole 221, the valve plate 22 is further rotated. Although the water flow at the water outlet 122 is increasing, the rate of increase is gradually reduced, that is, the water flow regulation accuracy is gradually increased. Figure 5 For example, if the valve plate 22 is rotated clockwise until the water outlet 152 is connected to the water through hole 221, and the valve plate 22 is further rotated, the rate of increase of the water flow at the water outlet 122 gradually increases, that is, the water flow regulation accuracy gradually decreases. This method can increase the water flow regulation accuracy when the water flow at the water outlet 122 is within 50%; it can also increase the water flow regulation accuracy when the water flow at the water outlet 122 is above 50%.

[0076] In some embodiments, see Figures 2 to 4 The dispensing valve 100 further includes a knob 3, which is connected to one end of the transmission shaft 21 extending from the housing 1. The knob 3 facilitates manual rotation of the transmission shaft 21.

[0077] In some embodiments, see Figure 2 、 Figure 3 and Figure 9The distribution valve 100 further comprises a wave bead assembly 4. The knob 3 is provided with a plurality of locking grooves 31 on the side thereof facing the housing 1. The plurality of locking grooves 31 are arranged circumferentially around the transmission shaft 21. The wave bead assembly 4 is abutted against the bottom of one of the locking grooves 31 and is used to be abutted against the bottom of another locking groove 31 when the knob 3 is rotated. Specifically, the housing 1 is provided with a third mounting groove 117. The wave bead assembly 4 comprises a bead 41 and a second elastic member 42. The second elastic member 42 is arranged in the third mounting groove 117. The bead 41 is partially arranged in the third mounting groove 117. The second elastic member 42 applies a pushing force to the bead 41 to make the bead 41 abut against the locking groove 31, thereby locking the rotation angle of the knob 3 relative to the housing 1. When the knob 3 is rotated by an external force, the inner wall of the locking groove 31 applies a force to the bead 41 towards the second elastic member 42, forcing the bead 41 to move into the third mounting groove 117 until the knob 3 is rotated to another locking groove 31 opposite to the bead 41, and the knob 3 is further rotated. The bead 41 gradually extends out of the third mounting groove 117 and abuts against the other locking groove 31, thereby switching the locking angle of the knob 3 relative to the housing 1. Optionally, the second elastic member 42 is a straight spring. Optionally, the wave bead assembly 4 is a wave bead nut arranged in the third mounting groove 117.

[0078] In other embodiments, the wave bead assembly 4 is an elastic column having elasticity, for example, made of rubber, and arranged in the third mounting groove 117 at one end and abutting against the locking groove 31 at the other end by its elasticity. That is, the elastic column realizes the locking of the rotation angle of the knob 3 relative to the housing 1 by its elasticity and enables the switching of the locking angle of the knob 3 relative to the housing 1.

[0079] In some embodiments, referring to Figure 3 The locking grooves 31 extend radially along the transmission shaft 21 and are distributed radially. Optionally, the locking grooves 31 are semi-cylindrical.

[0080] In some embodiments, referring to Figures 2 to 4 The distribution valve 100 further comprises a flow limiting assembly 5 arranged in the water inlet pipe 124. The flow limiting assembly 5 is used to reduce the pressure of the fluid flowing into the water passage cavity 1a and reduce the flow rate of the fluid flowing into the water passage cavity 1a. Specifically, referring to Figure 4 and Figure 10The flow-limiting assembly 5 comprises a first flow-limiting piece 51 and a second flow-limiting piece 52, both of which are perpendicular to the central axis of the water inlet pipe 124, and the second flow-limiting piece 52 is arranged on the first flow-limiting piece 51, and the first flow-limiting piece 51 and the second flow-limiting piece 52 enclose a flow-limiting cavity 5a. The first flow-limiting piece 51 is provided with a first through hole 511, and the second flow-limiting piece 52 is provided with a second through hole 521. The first through hole 511 and the second through hole 521 are arranged in the axial direction of the water inlet pipe 124, and both of them are in communication with the flow-limiting cavity 5a. Therefore, the water flow entering the water inlet pipe 124 will pass through the first through hole 511, the flow-limiting cavity 5a and the second through hole 521 in sequence, so as to slow down the water flow speed, reduce the water flow pressure entering the water passage cavity 1a and reduce the water flow entering the water passage cavity 1a. Optionally, the flow-limiting assembly 5 further comprises a third sealing ring 53 and a fourth sealing ring 54. The third sealing ring 53 is sleeved on the first flow-limiting piece 51 and clamped between the first flow-limiting piece 51 and the inner wall of the water inlet pipe 124, so as to enhance the sealing effect between the first flow-limiting piece 51 and the inner wall of the water inlet pipe 124. The fourth sealing ring 54 is clamped between the first flow-limiting piece 51 and the second flow-limiting piece 52, so as to enhance the sealing effect between the first flow-limiting piece 51 and the second flow-limiting piece 52. Optionally, the number of the first through hole 511 is multiple, and the multiple first through holes 511 are arranged at intervals around the central axis of the water inlet pipe 124. Optionally, the number of the second through hole 521 is one, and the central axis of the second through hole 521 coincides with the central axis of the water inlet pipe 124.

[0081] In some embodiments, referring to Figure 4 and Figure 10 , when viewed in the direction parallel to the central axis of the water inlet pipe 124, the projection of the fourth sealing ring 54 at least partially coincides with the first through hole 511. In the embodiments of the present application, the second flow-limiting piece 52 is used to face the water, that is, the second flow-limiting piece 52 is first impacted by the water flow. When the water flow pressure of the water inlet pipe 124 is large or the flow speed is fast, the water flow forces the second flow-limiting piece 52 to extrude the fourth sealing ring 54. The fourth sealing ring 54 is deformed under the extrusion of the first flow-limiting piece 51 and the second flow-limiting piece 52, which causes the area of the projection of the fourth sealing ring 54 coinciding with the first through hole 511 to increase, thereby reducing the water flow in the flow-limiting cavity 5a flowing into the water passage cavity 1a through the first through hole 511, that is, the flow-limiting assembly 5 can adjust the water flow entering the water passage cavity 1a according to the pressure and flow speed of the water flow entering the water inlet pipe 124, further reducing the water flow pressure entering the water passage cavity 1a and reducing the water flow entering the water passage cavity 1a.

[0082] In some embodiments, referring to Figure 4 and Figure 10 , the first flow-limiting piece 51 is provided with a clamping hook 512, the clamping hook 512 penetrates through the second through hole 521 and abuts against the side of the second flow-limiting piece 52 away from the first flow-limiting piece 51, so as to detachably install the second flow-limiting piece 52 on the first flow-limiting piece 51.

[0083] In some embodiments, referring to Figure 4 and Figure 10 , the flow-limiting assembly 5 further comprises a check piece 55 movably arranged on the side of the first flow-limiting piece 51 away from the second flow-limiting piece 52, and the projection of the first through hole 511 coincides with the check piece 55 in the direction parallel to the axis of the water inlet pipe 124. That is, the check piece 55 covers the first through hole 511, and when the water flow flows from the first through hole 511 to the water passage 1a, the water flow will push away the check piece 55, and then the water flow is not blocked; when the water flow flows from the water passage 1a to the first through hole 511, the water flow will force the check piece 55 to tightly adhere to the first flow-limiting piece 51 and close the first through hole 511, so that the water flow cannot flow back from the water passage 1a to the first through hole 511. Optionally, the check piece 55 is made of elastic material, such as rubber, silicone, etc., to enhance the sealing effect of the first through hole 511.

[0084] In some embodiments, referring to Figure 4 and Figure 10 , the flow-limiting assembly 5 further comprises a block-preventing piece 56 arranged on the first flow-limiting piece 51 and located on the side of the check piece 55 away from the first flow-limiting piece 51, the block-preventing piece 56 is used to abut against the edge of the water inlet 121, and a gap is left between the inner wall of the water inlet 121 and the block-preventing piece 56. Specifically, referring to Figure 10 , the block-preventing piece 56 is in a strip shape, and in the direction perpendicular to the axis of the water inlet pipe 124, the thickness of the block-preventing piece 56 is less than the inner diameter of the water inlet 121, so that when the block-preventing piece 56 abuts against the edge of the water inlet 121, the block-preventing piece 56 and the inner wall of the water inlet 121 have a gap allowing water flow to pass through, thereby improving the problem of the flow-limiting assembly 5 blocking the water inlet 121.

[0085] In some embodiments, referring to Figure 4 and Figure 10 , the side of the first flow-limiting piece 51 away from the second flow-limiting piece is provided with a mounting column 513, the check piece 55 is provided with a first mounting hole 551, the block-preventing piece 56 is provided with a second mounting hole 561, and the mounting column 513 passes through the first mounting hole 551 and is inserted into the second mounting hole 561. The block-preventing piece 56 is installed on the first flow-limiting piece 51 through the mounting column 513, and the block-preventing piece 56 prevents the check piece 55 from being separated from the mounting column 513, thereby movably arranging the check piece 55 on the first flow-limiting piece 51, and improving the problem that the check piece 55 cannot close the first through hole 511 due to positional deviation.

[0086] In some embodiments, referring to Figure 2 and Figure 3The distribution valve 100 further comprises an air isolation assembly 6, which is in communication with the water outlet pipe 125 and is used to communicate the external pipeline so that the fluid in the water outlet pipe 125 flows to the external pipeline and prevent the gas in the external pipeline from flowing into the water outlet pipe 125. Specifically, referring to Figure 11 The air isolation assembly 6 comprises a third shell 61 and a movable valve core 62. The third shell 61 is provided with a fourth mounting groove 611, a connecting port 612 and a connecting pipe 613. The water outlet pipe 125 is inserted into one end of the connecting port 612 so as to communicate the water outlet 122 with the connecting port 612. The other end of the connecting port 612 is in communication with the bottom of the fourth mounting groove 611. One end of the connecting pipe 613 is in communication with the side wall of the fourth mounting groove 611. The other end of the connecting pipe 613 is used to connect the external pipeline. The movable valve core 62 is movably arranged in the fourth mounting groove 611. The movable valve core 62 is used to seal the end of the connecting port 612 which is in communication with the fourth mounting groove 611. When the water outlet pipe 125 discharges water flow outwardly, the water flow pushes the movable valve core 62 away so that the water flow can be discharged from the connecting pipe 613. When the water outlet pipe 125 does not discharge water flow outwardly, the movable valve core 62 automatically seals the end of the connecting port 612 which is in communication with the fourth mounting groove 611 so as to prevent the gas in the external pipeline from flowing into the water outlet pipe 125. Optionally, the shell further comprises a fifth sealing ring 63, which is sleeved on the water outlet pipe 125 and is clamped between the water outlet pipe 125 and the inner wall of the connecting port 612 so as to enhance the sealing effect between the water outlet pipe 125 and the third shell 61.

[0087] In some embodiments, the movable valve core 62 can be abutted against the end of the connecting port 612 which is in communication with the fourth mounting groove 611 by gravity so as to seal the connecting port 612. In other embodiments, the air isolation assembly 6 further comprises a third elastic member (not shown), which applies an elastic force to the movable valve core 62 towards the bottom of the fourth mounting groove 611 so as to abut against the end of the connecting port 612 which is in communication with the fourth mounting groove 611 by the elastic force. Optionally, the third elastic member is a straight spring.

[0088] In some embodiments, referring to Figure 11The air isolation assembly 6 further comprises a fourth shell 64 which is detachably arranged in the third shell 61 and covers the top of the fourth mounting groove 611. The fourth shell 64 limits the movable valve core 62 in the fourth mounting groove 611, and the fourth shell 64 can be used to abut one end of the third elastic member and make the other end of the third elastic member abut the movable valve core 62, so that the third elastic member applies an elastic force to the movable valve core 62 towards the bottom of the fourth mounting groove 611. The fourth shell 64 is provided with an exhaust pipe 641 which is in communication with the fourth mounting groove 611, so that the gas in the fourth mounting groove 611 can be discharged from the exhaust pipe 641. When the movable valve core 62 is pushed away by the water flow discharged outwardly by the water outlet pipe 125, the movable valve core 62 abuts the port of the exhaust pipe 641 which is in communication with the fourth mounting groove 611 to seal the exhaust pipe 641, thereby improving the problem that the water flow discharged outwardly by the water outlet pipe 125 flows to the exhaust pipe 641. Optionally, the air isolation assembly 6 further comprises a sixth sealing ring 65 which is clamped between the third shell 61 and the fourth shell 64 to enhance the sealing effect between the third shell 61 and the fourth shell 64 and enhance the sealing effect of the fourth mounting groove 611.

[0089] In a second aspect, the embodiments of the present application provide a smart toilet (not shown) comprising the dispensing valve 100. The smart toilet has the structural features and beneficial effects of the dispensing valve 100, which will not be described here.

[0090] In some embodiments, the smart toilet comprises the dispensing valve 100 and a water spraying assembly which are sequentially communicated. The dispensing valve 100 is in communication with external water supply, and the water spraying assembly is used for spraying water flow to clean the user. The dispensing valve 100 and the external water supply can be further provided with a water tank, that is, the smart toilet can be provided with a water tank to store water, or can not be provided with a water tank. When the smart toilet is provided with a water tank, a water pump needs to be arranged between the water tank and the dispensing valve 100 to pump the water in the water tank to the dispensing valve 100.

[0091] The dispensing valve 100 and the smart toilet of the embodiments of the present application are provided with the slip ring 24 between the transmission shaft 21 and the shell 1, and the slip ring 24 resists the elastic force of the first elastic member 23 on the transmission shaft 21, which is beneficial to improve the problem that the large elastic force of the first elastic member 23 causes large twisting resistance of the valve core assembly 2 of the dispensing valve 100, and improve the user experience. The valve plate 22 and the water distribution plate 15 can be made of ceramic material, which is beneficial to reduce the friction between the valve plate 22 and the sealing surface 151. The valve plate 22 is connected with the transmission shaft 21 in a plug-in manner, which is convenient for disassembly and assembly. The valve plate 22 is arranged in the first mounting groove 113, which is beneficial to limit the position of the valve plate 22 and facilitate the assembly of the dispensing valve 100. The water distribution plate 15 is partially arranged in the first mounting groove 113, which is beneficial to limit the position of the valve plate 22 relative to the sealing surface 151 and facilitate the assembly of the dispensing valve 100.

[0092] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; under the idea of the present application, the technical features in the above examples or different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for simplicity; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A dispensing valve, characterized in that: include: The shell is provided with a water cavity, a water inlet and a water outlet, wherein the water inlet is connected to the water cavity; the shell includes a sealing surface, wherein the sealing surface partially defines the water cavity, and the shell is provided with a water outlet on the sealing surface, wherein the water outlet is connected to the water outlet; A valve core assembly includes a transmission shaft, a valve plate, and a first elastic member, wherein the transmission shaft is rotatably disposed on the housing, the valve plate is axially slidably disposed on the transmission shaft along the transmission shaft, the first elastic member is disposed on the transmission shaft, and the first elastic member abuts against a side of the valve plate facing away from the sealing surface so that the valve plate abuts against the sealing surface; the valve plate is provided with a water through hole, the water through hole being in communication with the water through cavity, and the transmission shaft is used to drive the valve plate to rotate relative to the housing so that the water through hole is in communication with or isolated from the water outlet hole; Wherein, the transmission shaft includes a first abutting annular surface, the valve core assembly further includes a slip ring, and the first elastic member applies an elastic force to the transmission shaft so that the slip ring is clamped between the first abutting annular surface and the inner wall of the housing.

2. The dispensing valve according to claim 1, characterized in that The housing includes a second abutting annular surface arranged opposite to the first abutting annular surface, and the slip ring is clamped between the first abutting annular surface and the second abutting annular surface.

3. The dispensing valve according to claim 1, characterized in that A plurality of inserting grooves are provided on one end of the transmission shaft facing the sealing surface, and the plurality of inserting grooves are arranged at intervals along the circumference of the transmission shaft; A plurality of plug-in ribs are provided on the side of the valve plate facing away from the sealing surface. The plurality of plug-in ribs are arranged along the circumference of the transmission shaft. Each of the plug-in ribs is correspondingly inserted into one of the plug-in grooves, so that the transmission shaft can drive the valve plate to rotate synchronously, and the valve plate can slide relative to the transmission shaft along the axial direction of the transmission shaft.

4. The dispensing valve according to claim 1, characterized in that The housing comprises a first shell and a second shell, the first shell and the second shell are detachably connected, and the first shell and the second shell surround and form the water passage cavity; The first shell is provided with a first mounting groove, and the first shell is provided with an avoidance hole at the bottom of the first mounting groove. One end of the transmission shaft is provided in the first mounting groove, and the other end of the transmission shaft extends out of the shell through the avoidance hole. The valve plate is arranged in the first installation groove.

5. The dispensing valve according to claim 4, characterized in that The first shell is provided with a flow groove on the outer side wall of the first mounting groove, and the flow groove extends along the circumference of the transmission shaft; the first shell is provided with a plurality of flow holes, and the plurality of flow holes are arranged at intervals along the circumference of the transmission shaft, and the flow holes connect the flow groove with the first mounting groove; The water inlet is provided in the second shell, and the second shell is provided with a second mounting groove, and the second mounting groove is connected with the water inlet; the first shell is provided with one end of the first mounting groove is provided in the second mounting groove to connect the water inlet with the flow groove.

6. The dispensing valve according to claim 4, characterized in that The shell also includes a water diversion plate and a sealing plate, the water diversion plate is provided with the sealing surface and the water outlet, and the water diversion plate is at least partially provided in the first mounting groove; the sealing plate is clamped between the second shell and the water diversion plate, the second shell is provided with the water outlet, and the sealing plate is provided with a through hole, which connects the water outlet with the water outlet.

7. The dispensing valve according to claim 6, characterized in that The first shell is provided with a first limiting protrusion on the inner wall of the first installation groove, the outer peripheral surface of the water diversion plate is provided with a first limiting groove, and the first limiting protrusion is at least partially provided in the first limiting groove to limit the installation angle of the water diversion plate relative to the first shell around the axis of the transmission shaft; and / or, The second shell is provided with a second mounting groove, the sealing plate is arranged in the second mounting groove, the second shell is provided with a second limiting protrusion on the inner wall of the second mounting groove, the outer peripheral surface of the sealing plate is provided with a second limiting groove, and the second limiting protrusion is at least partially provided in the second limiting groove to limit the installation angle of the sealing plate relative to the second shell around the axis of the transmission shaft.

8. The dispensing valve according to any one of claims 1 to 7, characterized in that: The distributing valve also includes a knob and a ball assembly. The knob is connected to one end of the transmission shaft extending out of the shell. A plurality of locking grooves are provided on the side of the knob facing the shell. The plurality of locking grooves are arranged circumferentially around the transmission shaft. The ball assembly is abutted against the bottom of one of the locking grooves. The ball assembly is used to abut against the bottom of another locking groove when the knob is rotated.

9. The dispensing valve according to any one of claims 1 to 7, characterized in that: The housing is provided with a water inlet pipe, the water inlet pipe is communicated with the water inlet, the distributing valve further comprises a flow limiting component, the flow limiting component is arranged in the water inlet pipe, the flow limiting component is used to reduce the pressure of the fluid entering the water passage cavity and reduce the flow rate of the fluid entering the water passage cavity; and / or, The shell is provided with a water outlet pipe, which is connected to the water outlet. The distribution valve also includes an air isolation component, which is connected to the water outlet pipe. The air isolation component is used to connect to an external pipeline so that the fluid in the water outlet pipe flows to the external pipeline and prevents the gas in the external pipeline from flowing into the water outlet pipe.

10. A smart toilet, characterized in that: Comprising the dispensing valve according to any one of claims 1 to 9.

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