A water diversion valve

Abstract

The application provides a water distribution valve, and belongs to the technical field of valves. The water distribution valve comprises a body, a shaft body, a first sealing element, a valve cap, a first sealing structure and a first elastic element; the body defines a containing cavity with a liquid inlet along a first direction, and a side wall of the body is provided with at least one liquid outlet communicating with the containing cavity; the shaft body is arranged in the containing cavity along the first direction; the first sealing element is arranged at one end of the shaft body, and the valve cap is arranged at the other end of the shaft body; the first sealing structure is sleeved on the shaft body; the first elastic element is arranged between the first sealing structure and the valve cap; in a first position, the first sealing element covers the liquid inlet; in a second position, the first sealing element is spaced apart from the body. The application reduces the elastic force borne by the shaft body, thereby reducing the water pressure required when liquid flows through the liquid inlet, so as to meet the water distribution of a low-water-pressure area, thereby ensuring that the water distribution valve provided by the application can normally work under low water pressure and meet the needs of users.

Description

Technical Field

[0001] This application relates to the field of valve technology, and in particular to a water distribution valve. Background Technology

[0002] A water diverter valve is a valve used to control the direction of water flow or to distribute water flow. It is widely used in water supply systems, agricultural irrigation, industrial processes, and household appliances.

[0003] Existing water distribution valves require high water pressure during the diversion process, making it difficult to achieve diversion when the water flow rate is low, which affects the user experience. Utility Model Content

[0004] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and provide a water distribution valve.

[0005] This application provides the following technical solution: a water distribution valve, having a first direction, comprising: The body defines a receiving cavity with a liquid inlet along the first direction, and the side wall of the body is provided with at least one liquid outlet communicating with the receiving cavity; A shaft is inserted into the receiving cavity along the first direction; A first seal and a valve cap, wherein the first seal is disposed at one end of the shaft and the valve cap is disposed at the other end of the shaft; A first sealing structure is housed in the receiving cavity, and the first sealing structure is sleeved on the shaft body; A first elastic element is disposed between the first sealing structure and the valve cap; The shaft has a first position and a second position relative to the body; In the first position, the first seal covers the liquid inlet; In the second position, the first seal is spaced apart from the body.

[0006] In some embodiments, the body includes a valve seat and a housing, the valve seat being connected to the housing along the first direction; The housing defines a limiting channel along the first direction, and the valve cap is at least partially housed in the limiting channel along the first direction; The valve seat has a first mounting groove on the side facing the valve cap, and the first sealing structure is connected to the groove wall of the first mounting groove.

[0007] In some embodiments, the first sealing structure includes a second sealing member and a first connecting member. The first connecting member is connected to the groove wall of the first mounting groove. The first connecting member is sleeved on the shaft body. A first limiting groove is provided on the side of the first connecting member away from the shaft body. The second sealing element is sleeved on the shaft and housed in the first limiting groove.

[0008] In some embodiments, the water distribution valve includes a second elastic element; The first mounting groove has a first groove bottom along the first direction, the first groove bottom is provided with a second mounting groove, the second mounting groove has a second groove bottom along the first direction, and the second elastic member is disposed between the second groove bottom and the second sealing member.

[0009] In some embodiments, the water distribution valve includes a second sealing ring; The first connector has a second annular groove on the side away from the shaft, and the second sealing ring is disposed in the second annular groove, with the side of the second sealing ring away from the shaft abutting against the groove wall of the first mounting groove.

[0010] In some embodiments, the second seal has a third annular groove on the side facing the bottom of the second groove, and one end of the second elastic member is received in the third annular groove.

[0011] In some embodiments, the valve cap has a relief groove on the side facing the first seal, and the end of the shaft away from the first seal passes through the relief groove and is connected to the bottom of the relief groove.

[0012] In some embodiments, the sidewall of the shaft is provided with a first annular groove, and the end of the shaft opposite to the valve cap is provided with a limiting part; The first sealing element includes a first sealing ring, a first gasket, a second gasket, and a retaining ring. The retaining ring is sleeved on the shaft and connected to the groove wall of the first annular groove. The first sealing ring is sleeved on the shaft. The first gasket and the second gasket are respectively disposed on opposite sides of the first sealing ring. The side of the first gasket away from the first sealing ring abuts against the retaining ring, and the side of the second gasket away from the first sealing ring abuts against the limiting part.

[0013] In some embodiments, the valve seat has a limiting step at one end away from the housing, and the edge of the first sealing ring has a conical surface that can fit with the limiting step.

[0014] In some embodiments, the inner diameter of the limiting step gradually increases from the side closer to the housing to the side away from the housing.

[0015] The embodiments of this application have the following advantages: by setting a first sealing structure in the receiving cavity and connecting the first sealing structure to the inner wall of the body, and simultaneously sleeve the first sealing structure on the shaft, the sealing quality of the first sealing structure in the receiving cavity is improved, avoiding pressure leakage when liquid enters the receiving cavity. This ensures that when external liquid enters the receiving cavity, the elastic force on the shaft is reduced, thereby lowering the water pressure required for the liquid to flow through the inlet, satisfying the diversion of the area with lower water pressure. This ensures that the water diversion valve provided by this application can work normally under low water pressure, meeting the user's needs. Thus, the water diversion valve provided by this application can effectively reduce liquid pressure while ensuring the stability of liquid flow, thereby ensuring the stability of the water diversion valve and meeting the user's needs.

[0016] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This invention provides a schematic diagram of the structure of a water distribution valve from one perspective, based on some embodiments of the present application. Figure 2 It shows Figure 1 Sectional view of section AA; Figure 3 An exploded view of a water distribution valve provided in some embodiments of this application is shown; Figure 4 It shows Figure 3 Cross-sectional view of the middle BB section.

[0019] Explanation of key component symbols: 100-Body; 110-Receiving cavity; 120-Inlet; 130-Outlet; 200-Shaft; 300-First seal; 400-Valve cap; 500-First sealing structure; 600-First elastic element; 140-Valve seat; 150-Housing; 151-Limiting channel; 141-First mounting groove; 510-Second seal; 520-First connector; 521-First limiting groove; 700 - Second elastic element; 142- First groove bottom; 143- Second mounting groove; 144- Second groove bottom; 410- Relief groove; 210- First annular groove; 220- Limiting part; 310- First sealing ring; 320- First gasket; 330- Second gasket; 340- Snap ring; 800- Second sealing ring; 522- Second annular groove; 511- Third annular groove; 145- Limiting step; 311- Conical surface.

[0020] Z - First direction. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] It should be noted that when an element is said to be "fixed" to another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected" to another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly" on another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0023] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0025] 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 in the template description is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figures 1 to 4 As shown, this application provides a water distribution valve with a first direction Z, which is mainly used to reduce the water pressure when liquid flows through the water distribution valve, so as to ensure the stability of the water distribution valve and improve the stability of the water distribution valve.

[0027] The water distribution valve includes a body 100, a shaft 200, a first sealing element 300, a valve cap 400, a first sealing structure 500, and a first elastic element 600.

[0028] The body 100 defines a receiving cavity 110 with a liquid inlet 120 along the first direction Z. The liquid inlet 120 is located at one end of the body 100 along the first direction Z and communicates with the receiving cavity 110. The side wall of the body 100 is provided with at least one drain outlet 130 communicating with the receiving cavity 110. That is, the drain outlet 130 communicates with the liquid inlet 120 through the receiving cavity 110, so that external liquid can enter the receiving cavity 110 through the liquid inlet 120 and be discharged from the drain outlet 130.

[0029] It is understandable that the number of drainage ports 130 can be one, two, or more, depending on the specific circumstances.

[0030] The shaft 200 passes through the receiving cavity 110 along the first direction Z, and the shaft 200 is movably connected to the body 100 along the first direction Z. It is understood that in some embodiments, the shaft 200 and the body 100 are slidably connected along the first direction Z; in other embodiments, the shaft 200 and the body 100 are rotatably connected along the first direction Z.

[0031] It should be noted that in this embodiment, the shaft 200 and the body 100 are slidably connected along the first direction Z to improve the ease of movement between the shaft 200 and the body 100.

[0032] The first sealing element 300 is disposed at one end of the shaft 200. The connection method between the first sealing element 300 and the shaft 200 includes at least one of the following: snap-fit, adhesive, threaded connection, bolted connection, interference fit, tenon and mortise connection or integral molding, which can be specifically set according to the actual situation.

[0033] In addition, the valve cap 400 is located at the other end of the shaft 200. The connection method between the valve cap 400 and the shaft 200 includes at least one of the following: snap-fit, adhesive, threaded connection, bolted connection, interference fit, tenon and mortise connection or integral molding, which can be specifically set according to the actual situation.

[0034] In this embodiment, the valve cap 400 and the first seal 300 are detachably connected to the shaft 200 to facilitate replacement, maintenance, assembly or cleaning.

[0035] It should be noted that the first seal 300 is located at the end of the shaft 200 near the inlet 120, and the valve cap 400 is located at the end of the shaft 200 away from the first seal 300, so that the inlet 120 can be sealed or opened by the first seal 300 during the movement of the shaft 200 relative to the body 100 along the first direction Z.

[0036] The first sealing structure 500 is housed in the receiving cavity 110, and the first sealing structure 500 is sealed to the inner wall of the body 100 to ensure the sealing quality between the first sealing structure 500 and the inner wall of the body 100, so as to prevent external liquid from seeping into the first sealing structure 500 and the inner wall of the body 100 and overflowing from the end of the body 100 near the valve cap 400, thereby improving the sealing quality between the first sealing structure 500 and the body 100.

[0037] In this embodiment, the first sealing structure 500 is sleeved on the shaft and is sealed to the side wall of the shaft to prevent external liquid from entering the part connecting the first sealing structure 500 and the shaft and overflowing from the end of the body 100 near the valve cap 400, so as to ensure the sealing quality between the first sealing structure 500 and the shaft, thereby improving the sealing quality of the first sealing structure 500 in the receiving cavity 110, ensuring the stability of the liquid pressure when the liquid enters the receiving cavity 110 through the inlet 120 and is discharged through the outlet 130, thereby ensuring the smoothness and stability of the diversion.

[0038] The first elastic element 600 is sleeved on the shaft 200 to limit the first elastic element 600 through the shaft 200, so as to ensure the stability of the first elastic element 600 in the receiving cavity 110, thereby enabling the first elastic element 600 to contract or elongate along the first direction Z under the action of external force.

[0039] In this embodiment, a first elastic element 600 is disposed between the first sealing structure 500 and the valve cap 400 to provide elastic force between the first sealing structure 500 and the valve cap 400. It is understood that when the first elastic element 600 is in a compressed state, it stores elastic potential energy. Since the first sealing structure 500 is connected to the inner wall of the body 100, i.e., the first sealing structure 500 maintains a stable state relative to the body 100, the valve cap 400, under the elastic force of the first elastic element 600, tends to move away from the first sealing structure 500 along the first direction Z.

[0040] In this embodiment, the shaft 200 has a first position and a second position relative to the body 100.

[0041] When the shaft 200 is in the first position relative to the body 100, the first seal 300 covers the liquid inlet 120. That is, at this time, the liquid inlet 120 is in a sealed state, and the first seal 300 abuts against the end of the body 100 away from the valve cap 400, so as to provide a limiting effect on the first seal 300 through the body 100, so as to ensure the stability of the first seal 300 in moving along the first direction Z.

[0042] When the shaft 200 is in the second position relative to the body 100, the first seal 300 is spaced apart from the body 100. At this time, the inlet 120 is opened so that external liquid can enter the receiving cavity 110 through the inlet 120 and be discharged from the outlet 130.

[0043] By providing a first sealing structure 500 in the receiving cavity 110 and connecting the first sealing structure 500 to the inner wall of the body 100, and simultaneously sleeved on the shaft 200, the sealing quality of the first sealing structure 500 in the receiving cavity 110 is improved. This prevents pressure leakage when liquid enters the receiving cavity 110, ensuring that external liquid entering the receiving cavity 110 can effectively reduce liquid pressure while maintaining the stability of liquid flow, thus ensuring the stability of the water distribution valve. When the shaft 200 is in the second position relative to the body 100, the "Bernoulli effect" allows the first sealing element 300 to maintain a gap with the body 100, thereby ensuring the smoothness and temperature control of liquid distribution.

[0044] It should be noted that when the liquid flows through the area between the first seal 300 and the body 100, the flow velocity increases, the dynamic pressure rises, and the static pressure decreases. According to Pascal's principle, the pressure of the liquid is evenly transmitted in all directions, generating a force opposite to the contraction direction of the first elastic element 600, thereby counteracting the elastic force of the first elastic element 600 and preventing its contraction, thus ensuring the stability of the diversion valve's flow distribution. In other words, the smaller the elastic force of the first elastic element 600, the smaller the elastic force of the first elastic element 600 on the first seal 300. That is, when the shaft 200 is in the second position relative to the body 100, when liquid enters the receiving cavity 110 through the inlet 120 and is discharged from the outlet 130, if the pressure of the liquid is equal to or greater than the elastic force of the first elastic element 600, the pressure generated during the liquid flow can be offset by the elastic force of the first elastic element 600 on the first seal 300, thereby ensuring the stability of the shaft 200 relative to the body 100 in the second position, and thus ensuring the stability of the diversion valve provided in this application for liquid diversion. It can be understood that by reducing the elastic force on the shaft 200, the water pressure required for the liquid to flow through the inlet 120 is reduced to meet the diversion in areas with lower water pressure, thereby ensuring that the diversion valve provided in this application can work normally under low water pressure conditions, thereby improving the applicability of the diversion valve and meeting the needs of users.

[0045] The applicant found that the existing water distribution valve failed at a water pressure of 0.5 bar, while the water distribution valve provided in this application could still work normally at a water pressure of 0.2 bar.

[0046] like Figure 2 and Figure 4 As shown, in some embodiments of this application, the body 100 includes a valve seat 140 and a housing 150. The valve seat 140 and the housing 150 are connected along the first direction Z. The connection method between the valve seat 140 and the housing 150 includes at least one of snap-fit, adhesive, threaded connection, bolted connection, interference fit, tenon and mortise connection or integral molding, which can be specifically set according to the actual situation.

[0047] In this embodiment, the valve seat 140 and the housing 150 are connected by threads to ensure the stability of the connection between the valve seat 140 and the housing 150, while improving the convenience of installation or disassembly and the sealing performance of the connection between the valve seat 140 and the housing 150.

[0048] In some embodiments, the outer wall of the valve seat 140 or the inner wall of the housing 150 is provided with an annular groove, and an elastic sealing ring is provided in the annular groove to further improve the sealing quality between the valve seat 140 and the housing 150.

[0049] The housing 150 defines a limiting channel 151 along the first direction Z. The limiting channel 151 extends through the housing 150 along the first direction Z, meaning that the axis of the limiting channel 151 is parallel to the first direction Z. The valve cap 400 is at least partially housed in the limiting channel 151 along the first direction Z, so as to provide limiting and guiding functions for the valve cap 400 through the inner wall of the limiting channel 151, thereby ensuring the stability and smoothness of the valve cap 400 sliding relative to the housing 150 along the first direction Z.

[0050] It is understandable that the side wall of the valve cap 400 is slidably connected to the inner wall of the housing 150.

[0051] In addition, the valve seat 140 is provided with a first mounting groove 141 on the side facing the valve cap 400. The first mounting groove 141 is connected to the limiting channel 151. The first sealing structure 500 is at least partially housed in the first mounting groove 141 and is connected to the groove wall of the first mounting groove 141 to improve the stability and sealing quality of the connection between the first sealing structure 500 and the groove wall of the first mounting groove 141.

[0052] The connection method between the first sealing structure 500 and the groove wall of the first mounting groove 141 includes one of the following: snap-fit, adhesive, threaded connection, bolt connection, interference fit, tenon and mortise connection or integral molding, which can be specifically set according to the actual situation.

[0053] like Figure 2 and Figure 3 As shown, in some embodiments of this application, the first sealing structure 500 includes a second sealing member 510 and a first connecting member 520. The first connecting member 520 is sealed to the groove wall of the first mounting groove 141. The first connecting member 520 is sleeved on the shaft 200 and sealed to the shaft 200. A first limiting groove 521 is provided on the side of the first connecting member 520 away from the shaft 200, and the opening of the first limiting groove 521 faces the first sealing member 300.

[0054] The second sealing member 510 is sleeved on the shaft 200 and housed in the first limiting groove 521. The side of the second sealing member 510 facing away from the shaft 200 is sealed to the groove wall of the first limiting groove 521, so as to further improve the sealing quality between the second sealing member 510 and the first connecting member 520 and the shaft 200 respectively, and ensure the stability of the pressure when the liquid flows through the receiving cavity 110.

[0055] The second sealing element 510 can be at least one of nitrile rubber ring, fluororubber ring, silicone rubber ring, or ethylene propylene rubber ring.

[0056] like Figure 2As shown, in some embodiments of this application, the water distribution valve includes a second elastic element 700.

[0057] The first mounting groove 141 has a first groove bottom 142 along the first direction Z, the first groove bottom 142 is provided with a second mounting groove 143, the second mounting groove 143 has a second groove bottom 144 along the first direction Z, the second elastic member 700 is disposed between the second groove bottom 144 and the second sealing member 510, and one end of the second elastic member 700 along the first direction Z abuts against the second groove bottom 144, and the other end of the second elastic member 700 abuts against the second sealing member 510 to form an elastic limiting structure.

[0058] In this embodiment, the first mounting groove 141 and the second mounting groove 143 are coaxially connected, and the inner diameter of the first mounting groove 141 is larger than the inner diameter of the second mounting groove 143. An annular support step is defined by the groove wall and the first groove bottom 142 of the first mounting groove 141. The end of the first connector 520 facing the first seal 300 abuts against the annular support step, so as to provide support and limit the first connector 520 through the annular support step, so as to further ensure the stability of the first connector 520 in the first mounting groove 141 and improve the stability of the first connector 520 in the receiving cavity 110.

[0059] It should be noted that during the process of the shaft 200 switching from the first position to the second position relative to the body 100, there is friction between the shaft 200 and the second seal 510, so that the second seal 510 moves towards the first seal 300 under the action of the friction of the shaft. Through the setting of the second elastic member 700, the second elastic member 700 exerts a spring force on the second seal 510 in the first direction Z, away from the first seal 300, so as to ensure the stability of the second seal 510 in the first mounting groove 141, thereby ensuring the stability of the connection between the second seal 510 and the first connecting member 520 and the sealing quality. At the same time, it can also prevent the second elastic element 700 from being compressed during the movement of the shaft 200 along the first direction Z, thereby preventing the second seal 510 from providing thrust to the shaft 200 along the first direction Z under the elastic force of the second elastic element 700. This ensures the uniformity of the force on the shaft 200 relative to the body 100 in the first position, and also ensures the uniformity of the force on the shaft 200 relative to the body 100 in the second position. Furthermore, it can avoid the influence of the elastic force on the shaft 200 by the second elastic element 700. Thus, when the shaft 200 is in the second position relative to the body 100, it can effectively reduce the pressure of the liquid flowing through the water divider valve, thereby improving the utilization rate and application range of the water divider valve, and improving the stability of the water divider valve's flow distribution.

[0060] like Figure 3 and Figure 4 As shown, in some embodiments of this application, the valve cap 400 is provided with a relief groove 410 on the side facing the first sealing member 300, so as to reduce the overall weight of the valve cap 400 by setting the relief groove 410, so as to form a hollow valve cap 400 structure, which can not only reduce the production materials of the valve cap 400, but also reduce the production cost of the valve cap 400.

[0061] It should be noted that in this application, by reducing the weight of the valve cap 400, the elastic force required for the first elastic member 600 to push the valve cap 400 away from the first seal member 300 in the first direction Z is reduced. In other words, the smaller the weight of the valve cap 400, the smaller the pressure of the valve cap 400 on the first elastic member 600 in the first direction Z. Therefore, by reducing the elastic force of the first elastic element 600 itself, it is possible not only to ensure that the first elastic element 600 can move the shaft 200 from the second position to the first position under the action of the elastic force, but also to reduce the elastic force of the first elastic element 600 on the valve cap 400 when the shaft 200 moves from the first position to the second position. This reduces the elastic force of the first elastic element 600 on the shaft 200. Since the pressure of the liquid flowing through the inlet 120 is not less than the elastic force of the first elastic element 600 when the water divider valve is in the second position, the first sealing element 300 and the body 100 can remain relatively stable, thereby improving the stability of the shaft 200 in the second position. This reduces the pressure of the liquid flowing through the inlet 120, ensuring that the shaft 200 can remain stable in the second position at a pressure of 0.2 bar. This further improves the diversion efficiency and convenience of the water divider valve, thereby meeting the user's diversion needs and increasing the utilization rate of the water divider valve.

[0062] In this embodiment, the end of the shaft 200 facing away from the first seal 300 passes through the relief groove 410, and the shaft 200 is connected to the bottom of the relief groove 410. The connection method includes one of snap-fit, bonding, threaded connection, bolt connection, interference fit, tenon and mortise connection or integral molding, which can be specifically set according to the actual situation to ensure the stability of the connection between the shaft 200 and the valve cap 400.

[0063] like Figure 2 and Figure 4 As shown, in some embodiments of this application, the side wall of the shaft 200 is provided with a first annular groove 210, which is close to the liquid inlet 120. The end of the shaft 200 away from the valve cap 400 is provided with a limiting part 220, and there is a gap between the groove wall of the first annular groove 210 and the limiting part 220.

[0064] The first sealing element 300 includes a first sealing ring 310, a first gasket 320, a second gasket 330, and a retaining ring 340. The retaining ring 340 is sleeved on the shaft 200 and connected to the groove wall of the first annular groove 210, that is, the retaining ring 340 is engaged in the first annular groove 210. The first sealing ring 310 is sleeved on the shaft 200 and is located between the retaining ring 340 and the limiting part 220.

[0065] In addition, the first gasket 320 and the second gasket 330 are respectively disposed on opposite sides of the first sealing ring 310, and the first gasket 320 and the second gasket 330 abut against the first sealing ring 310. The side of the first gasket 320 away from the first sealing ring 310 abuts against the retaining ring 340, and the side of the second gasket 330 away from the first sealing ring 310 abuts against the limiting part 220 to form the first sealing member 300, so as to ensure the stability of the connection between the first sealing member 300 and the shaft 200.

[0066] It should be noted that in this embodiment, the first gasket 320 and the second gasket 330 are both hard sheets, so as to limit and fix the first sealing ring 310 through the first gasket 320 and the second gasket 330, so as to ensure the stability of the overall structure of the first sealing ring 310 and the stability of its position on the shaft 200.

[0067] Secondly, the first gasket 320 and the second gasket 330 overlap each other in the first direction Z, and the outer diameter of the first gasket 320 and the second gasket 330 is smaller than the inner diameter of the first sealing ring 310.

[0068] The first sealing ring 310 can be at least one of nitrile rubber ring, fluororubber ring, silicone rubber ring, or ethylene propylene rubber ring.

[0069] It should be noted that when the shaft 200 is in the second position relative to the body 100, the side of the first sealing ring 310 near the liquid inlet 120 abuts against the inner wall of the valve seat 140, and forms a sealing connection structure with the valve seat 140 against the inner wall of the liquid inlet 120, so as to prevent external liquid from entering the receiving cavity 110 through the liquid inlet 120, thereby improving the sealing quality.

[0070] like Figure 2 and Figure 4 As shown, in some embodiments of this application, the water distribution valve includes a second sealing ring 800.

[0071] The first connector 520 has a second annular groove 522 on the side opposite to the shaft 200, and the second sealing ring 800 is disposed in the second annular groove 522, and the side of the second sealing ring 800 opposite to the shaft 200 abuts against the groove wall of the first mounting groove 141.

[0072] It should be noted that the number of the second annular groove 522 can be one, two or more, and can be set according to the actual situation.

[0073] In some embodiments, there are multiple second annular grooves 522, which are arranged at intervals along the first direction Z on the periphery of the first connector 520. The number of second sealing rings 800 is equal to the number of second annular grooves 522, and one second sealing ring 800 is installed in one second annular groove 522. That is, by increasing the number of second sealing rings 800, a multi-layer sealing structure is formed between the first connector 520 and the valve seat 140 to further improve the sealing quality between the first sealing structure 500 and the valve seat 140.

[0074] like Figure 3 and Figure 4 As shown, in some embodiments of this application, the second sealing member 510 is provided with a third annular groove 511 on the side facing the bottom of the second groove, and one end of the second elastic member 700 is received in the third annular groove 511 to provide a limiting effect on the second elastic member 700 through the third annular groove 511, so as to ensure the stability of the second elastic member 700 in the second mounting groove 143.

[0075] It should be noted that the second elastic element 700 is sleeved on the shaft 200 so as to provide limiting and guiding functions for the second elastic element 700 through the shaft 200.

[0076] In this embodiment, the first elastic element 600 and the second elastic element 700 can be a conical spring, a helical spring, or a rubber spring, respectively.

[0077] It should be noted that the second elastic element 700 is a conical spring, and the outer diameter of the second elastic element 700 gradually decreases from the end near the valve cap 400 to the end far from the valve cap 400, so that when the second elastic element 700 is subjected to pressure along the first direction Z, the large coil end of the second elastic element 700 is compressed first, and then gradually transitions to the small coil end, forming a nonlinear elastic force with low initial pressure, so as to improve space utilization.

[0078] like Figures 2 to 4As shown, in some embodiments of this application, the valve seat 140 is provided with a limiting step 145 at one end away from the housing 150, and the edge of the first sealing ring 310 is provided with a conical surface 311. The conical surface 311 can fit with the limiting step 145 so as to limit the first sealing ring 310 along the first direction Z through the limiting step 145, so as to ensure the stability and sealing quality of the connection between the first sealing ring 310 and the limiting step 145.

[0079] like Figure 3 and Figure 4 As shown, in some embodiments of this application, the inner diameter of the limiting step 145 gradually increases from the side close to the housing 150 to the side away from the housing 150. By increasing the contact area between the limiting step 145 and the first sealing ring 310, the sealing quality of the first sealing ring 310 to the liquid inlet 120 is further improved.

[0080] In all examples shown and described herein, any specific values ​​should be interpreted as merely exemplary and not as limitations; therefore, other examples of exemplary embodiments may have different values.

[0081] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0082] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these modifications and improvements all fall within the protection scope of this application.

Claims

1. A water distribution valve, having a first direction, characterized in that, include: The body defines a receiving cavity with a liquid inlet along the first direction, and the side wall of the body is provided with at least one liquid outlet communicating with the receiving cavity; A shaft is inserted into the receiving cavity along the first direction; A first seal and a valve cap, wherein the first seal is disposed at one end of the shaft and the valve cap is disposed at the other end of the shaft; A first sealing structure is housed in the receiving cavity, and the first sealing structure is sleeved on the shaft body; A first elastic element is disposed between the first sealing structure and the valve cap; The shaft has a first position and a second position relative to the body; In the first position, the first seal covers the liquid inlet; In the second position, the first seal is spaced apart from the body.

2. The water distribution valve according to claim 1, characterized in that, The body includes a valve seat and a housing, and the valve seat and the housing are connected along the first direction; The housing defines a limiting channel along the first direction, and the valve cap is at least partially housed in the limiting channel along the first direction; The valve seat has a first mounting groove on the side facing the valve cap, and the first sealing structure is connected to the groove wall of the first mounting groove.

3. The water distribution valve according to claim 2, characterized in that, The first sealing structure includes a second sealing element and a first connecting element. The first connecting element is connected to the groove wall of the first mounting groove. The first connecting element is sleeved on the shaft body. A first limiting groove is provided on the side of the first connecting element away from the shaft body. The second sealing element is sleeved on the shaft and housed in the first limiting groove.

4. The water distribution valve according to claim 3, characterized in that, The water distribution valve includes a second elastic element; The first mounting groove has a first groove bottom along the first direction, the first groove bottom is provided with a second mounting groove, the second mounting groove has a second groove bottom along the first direction, and the second elastic member is disposed between the second groove bottom and the second sealing member.

5. The water distribution valve according to claim 3, characterized in that, The water distribution valve includes a second sealing ring; The first connector has a second annular groove on the side away from the shaft, and the second sealing ring is disposed in the second annular groove, with the side of the second sealing ring away from the shaft abutting against the groove wall of the first mounting groove.

6. The water distribution valve according to claim 4, characterized in that, The second sealing member has a third annular groove on the side facing the bottom of the second groove, and one end of the second elastic member is received in the third annular groove.

7. The water distribution valve according to any one of claims 2 to 6, characterized in that, The valve cap has a relief groove on the side facing the first seal, and the end of the shaft away from the first seal passes through the relief groove and is connected to the bottom of the relief groove.

8. The water distribution valve according to any one of claims 2 to 6, characterized in that, The side wall of the shaft is provided with a first annular groove, and the end of the shaft opposite to the valve cap is provided with a limiting part; The first sealing element includes a first sealing ring, a first gasket, a second gasket, and a retaining ring. The retaining ring is sleeved on the shaft and connected to the groove wall of the first annular groove. The first sealing ring is sleeved on the shaft. The first gasket and the second gasket are respectively disposed on opposite sides of the first sealing ring. The side of the first gasket away from the first sealing ring abuts against the retaining ring, and the side of the second gasket away from the first sealing ring abuts against the limiting part.

9. The water distribution valve according to claim 8, characterized in that, The valve seat has a limiting step at the end opposite to the housing, and the edge of the first sealing ring has a conical surface that can fit with the limiting step.

10. The water distribution valve according to claim 9, characterized in that, The inner diameter of the limiting step gradually increases from the side closer to the housing to the side away from the housing.

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