Valve and water using device using same

Abstract

The utility model discloses a valve piece and discloses a water using device with the valve piece, and the valve piece is characterized in that a water flowing channel is arranged on a valve seat, and a water flowing hole is formed in the water flowing channel; the valve element is installed on the valve seat and can control opening and closing of the water flowing channel. The sealing piece is installed and intercepted at the water through hole, the sealing piece comprises a valve film capable of elastically deforming and a plunger arranged on the valve film, the valve film can drive the plunger to elastically move relative to the water through hole, the valve film tends to move in the direction in which the plunger blocks the water through hole, and a plurality of water passing holes are formed in the valve film; the sealing piece is matched with the valve element for use, the functions of a conventional check valve and a check valve are integrated, a user does not need to additionally install the check valve, and the use cost is reduced; the valve is small in size, small in occupied space, convenient to install and use and capable of effectively solving the problems of water channeling of household water and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of water valves, in particular to a valve component and a water-using device using the valve component. Background Art

[0002] Some water-using equipment, such as water heaters and sanitary ceramics, use angle valves as switches for tap water to supply water to water-using devices. However, if the tap water supply system is cut off, when the water supply is restored, the water retained in the water-using equipment will flow back to the tap water pipe under the action of siphon, causing water to flow to other water-using equipment. For example, the water-using equipment is a toilet. Due to water outage and other reasons, the pressure in the tap water system pipe is insufficient or negative pressure is generated. At this time, if the blue toilet cleaner is placed in the toilet tank used by the upper-level residents, and the water tank inlet valve is not equipped with a siphon reflux device, siphon reflux will occur in the water inlet pipe, and the blue water in the water tank will automatically flow into the water supply pipe. At this time, the lower-level residents happen to turn on the faucet, and blue water will flow out of the tap water pipe, which is the "blue water phenomenon". The reflux of water in the water tank causes the domestic water to be polluted, which in turn causes certain harm to our health. The usual solution is to install a check valve on the water inlet pipe of the toilet. An external check valve is often difficult to install due to insufficient space in the original product design, and it also increases the cost of use. Utility Model Content

[0003] The utility model aims to solve one of the above-mentioned technical problems in the related art at least to a certain extent. To this end, the utility model provides a valve component.

[0004] To achieve the above purpose, the technical solution of the utility model is as follows:

[0005] The utility model also provides a water-using device having the valve component.

[0006] The valve member according to the first embodiment of the utility model comprises:

[0007] A valve seat, wherein the valve seat is provided with a water passage, and the water passage is provided with a water hole;

[0008] A valve core, the valve core is installed on the valve seat, and the valve core can control the opening and closing of the water flow channel;

[0009] A sealing member is installed and intercepted at the water hole, the sealing member comprises a valve membrane capable of elastic deformation and a plug arranged on the valve membrane, the valve membrane can drive the plug to move elastically relative to the water hole, the valve membrane tends to move in the direction of making the plug block the water hole, and a plurality of water holes are opened on the valve membrane.

[0010] The valve component according to the embodiment of the utility model has at least the following beneficial effects: through the use of a sealing component in conjunction with a valve core, the functions of a conventional check valve and a one-way valve are integrated, and the user does not need to install a check valve separately, thereby reducing the cost of use; the valve component is small in size and occupies little space, is easy to install and use, and can effectively solve problems such as water leakage in household water use.

[0011] According to some embodiments of the utility model, the seal also includes a surrounding edge, which defines a hollow cylindrical installation cavity, the plug is coaxial with the installation cavity, the valve membrane is connected between the inner wall of the installation cavity and the outer wall of the plug, the cross-section of the valve membrane along the axial direction of the installation cavity is U-shaped, and the U-shaped opening of the cross-section of the valve membrane faces the water hole.

[0012] According to some embodiments of the utility model, a plurality of notches are provided on the valve membrane, the plurality of notches are distributed along the circumference of the valve membrane, the notches extend along the U-shaped cross-section direction of the valve membrane, and the notches constitute the water holes.

[0013] According to some embodiments of the present utility model, a plurality of first convex ribs are provided on the inner wall of the installation cavity, and the first convex ribs penetrate the notch along the axial direction of the installation cavity.

[0014] According to some embodiments of the present invention, the plurality of water holes are in the form of fine holes and are evenly distributed on the valve membrane.

[0015] According to some embodiments of the utility model, a first convex edge is provided on the periphery of the plug column, the first convex edge is connected to the valve membrane, a concave arc surface is provided on one side surface of the first convex edge, the concave arc surface is arranged along the circumference of the plug column, and the concave arc surface faces the water hole.

[0016] According to some embodiments of the utility model, the cross-section of the first convex edge in the axial direction of the plug column includes a first inclined guide surface and an extended edge, the extended edge protrudes radially from the edge of the first inclined guide surface, the valve membrane is connected to the extended edge, and the inner wall of the water hole is provided with a second inclined guide surface adapted to the first inclined guide surface, and the extended edge can overlap on the periphery of the water hole.

[0017] According to some embodiments of the utility model, a plurality of guide ribs are provided on the peripheral wall of one end of the plug column facing the water through hole, and the guide ribs have a third inclined guide surface inclined along the axial direction of the plug column.

[0018] According to some embodiments of the utility model, a support ring extends from the inner wall of the water channel, the water hole is defined on the support ring, a second flange is provided on the outer wall of the surrounding edge, a slot is provided between the second flange and the surrounding edge, one end edge of the valve core is inserted into the slot, the valve core presses the seal onto the support ring, and the second flange is sealingly abutted against the circumferential inner wall of the water channel.

[0019] According to some embodiments of the utility model, the valve core includes a valve body, a valve stem, a movable grinding plate and a static grinding plate, the valve body is provided with a water inlet, a valve cavity and a water outlet which are connected in sequence, the sealing member is installed at the water inlet, the valve stem can be rotatably extended into the valve cavity, the movable grinding plate is located in the valve body and fixed on the valve stem, the static grinding plate is fixed in the valve cavity, the movable grinding plate is provided with a first through hole, the static grinding plate is provided with a second through hole, the movable grinding plate is fitted with the static grinding plate, the first through hole and the second through hole can be relatively staggered or connected, and when the first through hole and the second through hole are connected, the water inlet and the water outlet are connected.

[0020] The water-using device according to the second aspect of the present utility model includes a valve member.

[0021] The water-using device according to the embodiment of the utility model has at least the following beneficial effects: it can effectively solve the problem of water leakage and is easy to install and use.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 It is a partial structural exploded diagram of the valve components;

[0025] Figure 2 is an internal cross-sectional view of the valve component;

[0026] Figure 3 It is a schematic diagram of the structure of the valve core;

[0027] Figure 4 is a schematic diagram of one embodiment of a seal;

[0028] Figure 5 yes Figure 4 Schematic diagram from another perspective;

[0029] Figure 6is a schematic diagram of another embodiment of a sealing member;

[0030] Figure 7 yes Figure 6 A cross-sectional view of one of the usage states;

[0031] Figure 8 yes Figure 6 Schematic diagram of another usage state.

[0032] Figure numerals: valve seat 100; water flow channel 110; support ring 111; water hole 120; second inclined guide surface 121; valve core 200; valve body 210; water inlet 211; valve cavity 212; water outlet 213; valve stem 220; dynamic grinding plate 230; first through hole 231; static grinding plate 240; second through hole 241; sealing member 300; valve membrane 310; plug 320; first convex edge 321; concave arc surface 322; first inclined guide surface 323; extended edge 324; guide rib 325; third inclined guide surface 326; water hole 330; notch 331; surrounding edge 340; installation cavity 341; first convex rib 342; second convex edge 343; slot 350. DETAILED DESCRIPTION

[0033] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0034] The utility model relates to a valve component, comprising a valve seat 100 , a valve core 200 and a sealing component 300 .

[0035] like Figure 1 and Figure 2As shown, the valve seat 100 serves as a supporting member for the valve core 200 and the sealing member 300. A water passage 110 is provided inside the valve seat 100. The valve seat 100 can be set as a three-way pipe structure, and the two ends of the valve seat 100 are connected to form the water passage 110. In this embodiment, the two ends of the valve seat 100 are 110a and 110b, respectively, and the path between the end 110a and the end 110b constitutes the water passage 110. The end 110a serves as the water inlet port of the water passage 110, and the end 110b serves as the water outlet port of the water passage 110. A water hole 120 is provided in the water passage 110, and the water hole 120 is located in one end constituting the water passage 110, and can be close to the end 110a. The valve core 200 extends into the valve seat 100 from the third end of the valve seat 100 and intercepts the path of the water passage 110. The valve core 200 controls the opening and closing of the water passage 110. The structure of the valve core 200 is not limited, for example, a conventional angle valve structure can be used. Figure 3As shown, the valve core 200 includes a valve body 210, a valve stem 220, a movable grinding plate 230 and a static grinding plate 240. The valve body 210 is provided with a water inlet 211, a valve cavity 212 and a water outlet 213 which are connected in sequence. The valve body 210 can be set as a cylindrical structure, one end of the valve body 210 is set as the water inlet 211, and the water outlet 213 is set on the side wall of the valve body 210. The interior of the valve body 210 defines a valve cavity 212. The valve stem 220 extends into the valve cavity 212 from the other end of the valve body 210. The static grinding plate 240 and the movable grinding plate 230 are both located in the valve cavity 212, and the static grinding plate 240 and the movable grinding plate 230 are located on the communication path between the water inlet 211 and the water outlet 213. The static grinding plate 240 and the movable grinding plate 230 can be made of ceramic material. The movable grinding plate 230 is fixed on the end of the valve stem 220. The valve stem 220 can drive the dynamic grinding plate 230 to rotate in the valve cavity 212. The static grinding plate 240 is fixedly installed in the valve cavity 212. A plane of the dynamic grinding plate 230 and a plane of the static grinding plate 240 fit each other. The dynamic grinding plate 230 is provided with a first through hole 231, and the static grinding plate 240 is provided with a second through hole 241. The dynamic grinding plate 230 can rotate relative to the static grinding plate 240. When the dynamic grinding plate 230 rotates until the first through hole 231 and the second through hole 241 are aligned and connected with each other, the water inlet 211 and the water outlet 213 are connected with each other; when the dynamic grinding plate 230 rotates until the first through hole 231 and the second through hole 241 are misaligned with each other, the water inlet 211 and the water outlet 213 are not connected. The valve core 200 is fixed in the valve seat 100 through the valve body 210, and the water inlet 211 of the valve core 200 faces one end of the valve seat 100, and the water outlet 213 faces the other end of the valve seat 100. The water inlet 211 and the water outlet 213 are located in the water passage 110. When the water inlet 211 and the water outlet 213 are in a connected state, the water passage 110 can be connected; when the water inlet 211 and the water outlet 213 are in a disconnected state, the water passage 110 is closed. The sealing member 300 is located in the water passage 110, installed at the water hole 120, and the sealing member 300 intercepts the water hole 120. Figure 2 , Figure 6 , Figure 7 and Figure 8As shown, the outer contour shape of the seal 300 is adapted to the shape of the water flow channel 110. The seal 300 can be fixed at the water hole 120 by means of crimping, clamping, bonding, etc. In this example, the seal 300 is installed at one end of the valve body 210, and the seal 300 is pressed at the water hole 120 by the valve core 200. The seal 300 includes a valve membrane 310 and a plug 320. The seal 300 as a whole can be formed of a material that can be elastically deformed, such as rubber, silicone, etc. The valve membrane 310 can be elastically deformed on the seal 300. The plug 320 is arranged on the valve membrane 310, and the plug 320 can move with the valve membrane 310. The plug 320 is penetrated by the water hole 120, and during the movement, the plug 320 can block the water hole 120, or leave the water hole 120 to open the water hole 120. The elastic deformation of the valve membrane 310 tends to move the plug 320 in the direction of blocking the water hole 120. That is, when the valve membrane 310 is not subjected to external force or the external force is smaller than its elastic deformation force, the valve membrane 310 can drive the plug 320 to move and keep blocking the water hole 120. The valve membrane 310 is provided with a water hole 330.

[0036] In actual use, the valve component can be applied to a water-using device, which may be a toilet, a squat toilet, a water heater, etc. One end (i.e., 110a) of the valve seat 100 close to the water hole 120 can be connected to the tap water pipe, and the other end (i.e., 110b) is connected to the water inlet end of the water-using device. In the present embodiment, the water-using device is described using a toilet as an example, and the valve seat 100 is connected to the water tank of the toilet. During use, the valve core 200 is rotated to an open state, that is, the water inlet 211 and the water outlet 213 are connected. When the toilet is flushed with a water tank, the water level in the water tank drops, and a pressure difference occurs between the end of the valve seat 100 connected to the water tank and the end connected to the tap water. The tap water is filled into the water flow channel 110, and the water flow impacts the water hole 120, such as Figure 6 As shown, under the action of water pressure, the plug 320 is pushed away from the water hole 120, and the water hole 120 is opened. After the water flows through the water hole 120, it impacts the valve membrane 310, and the valve membrane 310 undergoes elastic deformation, and the valve membrane 310 drives the plug 320 to remain in the position of opening the water hole 120. Then the water flows through the water hole 330 on the valve membrane 310 and the valve cavity 212 of the valve core 200 in turn, and is transported to the water tank along the water passage 110 for water replenishment. When the water tank is replenished with water, the water inlet end of the water tank is closed, and the tap water fills the water passage 110. As shown in FIG. Figure 2 and Figure 7As shown, at this time, the water pressure on both sides of the seal 300 is balanced, and the valve membrane 310 elastically deforms and resets, driving the plug 320 to move and re-block the water hole 120, waiting to be opened when the water tank is replenished next time. If the water supply is restored after the tap water is cut off, other faucets on the water pipe are opened, and an instantaneous negative pressure will be generated in the water pipe. The direction of the negative pressure is consistent with the direction in which the plug 320 blocks the water hole 120, so the water hole 120 is kept in a closed state, and no negative pressure is generated on the end of the valve seat 100 connected to the water tank, thereby preventing the water in the water tank from flowing back into the tap water pipe along the water channel 110. The valve member can also be installed between the cold and hot water pipes of the water heater, and the above principle can be used to effectively prevent the cold and hot water pipes from leaking water to each other. When the valve core 200 rotates to the closed state, the water channel 110 is directly cut off. The valve component integrates the functions of a conventional check valve and a one-way valve by using a seal 300 in conjunction with a valve core 200. The user does not need to install a check valve separately, thereby reducing the cost of use. The valve component is small in size and occupies little space, is easy to install and use, and can effectively solve problems such as water leakage in household water use.

[0037] In some specific embodiments of the present invention, Figure 4 , Figure 6 and Figure 7 As shown, the sealing member 300 further includes a peripheral edge 340. The outer contour of the peripheral edge 340 is adapted to the water passage 110. For example, the cross section of the water passage 110 is circular, and the outer contour of the peripheral edge 340 is circular. The peripheral edge 340 is in a circular ring shape and defines a mounting cavity 341. The mounting cavity 341 is a hollow cylindrical cavity with openings at both ends. The plug 320 is coaxial with the mounting cavity 341 in space. The valve membrane 310 is connected between the inner wall of the mounting cavity 341 and the outer wall of the plug 320. The valve membrane 310 can extend from the inner wall of the mounting cavity 341, and the valve membrane 310, the plug 320 and the peripheral edge 340 are integrally formed. Among them, as Figure 6 and Figure 7 As shown, the cross-section of the valve membrane 310 along the axial direction of the installation cavity 341 is U-shaped. One end of the installation cavity 341 faces the water hole 120. The valve membrane 310 first extends from the inner wall of the installation cavity 341 toward the end away from the water hole 120, and then bends and changes direction, turning to the end toward the water hole 120 and continues to extend. The U-shaped opening of the cross-section of the valve membrane 310 faces the water hole 120. The U-shaped cross-section of the valve membrane 310 guides and elastically supports the axial movement of the plug 320, and forms an elastic force that drives the plug 320 to move in the direction of blocking the water hole 120. According to this structure, the valve membrane 310 surrounds the plug 320, providing a uniform force on the circumference of the plug 320.

[0038] The water hole 330 on the valve membrane 310 can be in various forms. Figure 4 and Figure 5As shown, a plurality of notches 331 are provided on the valve membrane 310, and the notches 331 are distributed along the circumference of the valve membrane 310, preferably evenly distributed. The notches 331 also extend along the U-shaped cross-section direction of the valve membrane 310. The notch 331 is one of the implementation forms of the water hole 330. Correspondingly, a plurality of first ribs 342 are provided on the side wall of the mounting cavity 341. The positions of the first ribs 342 and the notches 331 correspond one to one, and the first ribs 342 extend along the axial direction of the surrounding edge 340 and pass through the notches 331. The first ribs 342 are used to increase the axial support strength of the surrounding edge 340. Or, as Figure 6 As shown, the water holes 330 are fine pore structures distributed on the valve membrane 310. When water flows through the water holes 330, the water holes 330 can be used to block large-size solid particles in the water, thereby filtering to protect the valve core 200.

[0039] In some specific embodiments of the present invention, Figure 5 As shown, a first convex edge portion 321 is provided around the plug 320. The first convex edge portion 321 is connected to the valve membrane 310. A concave arc surface 322 is provided on one side surface of the first convex edge portion 321. The concave arc surface 322 is arranged along the circumference of the plug 320. The concave arc surface 322 faces the water hole 120. When water flows through the water hole 120, it will impact on the concave arc surface 322. The concave arc surface 322 is used to increase the pressure bearing area, which is conducive to pushing the plug 320 to open the water hole 120 when the water pressure is low.

[0040] Further, such as Figure 5 and Figure 7 As shown, the cross section of the first convex portion 321 in the axial direction of the plug 320 includes a first inclined guide surface 323 and an extension 324. The extension 324 radially protrudes from the edge of the first inclined guide surface 323. The valve membrane 310 is connected to the extension 324. The inner wall of the water hole 120 is provided with a second inclined guide surface 121 adapted to the first inclined guide surface 323. The radial dimension of the first inclined guide surface 323 and the central axis of the plug 320 gradually increases from the water hole 120 to the water hole 330. Figure 2 As shown, the extension 324 can overlap the periphery of the water hole 120. When the plug 320 blocks the water hole 120, the first inclined guide surface 323 and the second inclined guide surface 121 fit together, and the extension 324 will not get stuck in the water hole 120. This prevents the plug 320 from being completely stuck in the water hole 120 due to insufficient pressure or negative pressure in the pipe of the tap water supply system (due to water outage, etc.), so that the plug 320 is adsorbed toward the water supply end, causing the plug 320 to be completely stuck in the water hole 120, causing the water hole 120 to be stuck by the plug 320 when the water supply is restored and unable to work normally.

[0041] In some specific embodiments of the present invention, Figure 5As shown, a plurality of guide ribs 325 are provided on the peripheral wall of one end of the plug 320 facing the water through hole 120. The guide ribs 325 have a third inclined guide surface 326 inclined along the axial direction of the plug 320. The guide ribs 325 can be distributed in a cross shape, a star shape, etc. on the plug 320. The third inclined guide surface 326 is inclined to the central axis of the plug 320 from the valve membrane 310 to the end of the plug 320, and the radial dimension of the third inclined guide surface 326 and the central axis of the plug 320 gradually increases from the water through hole 120 to the water through hole 330. When the plug 320 moves relative to the water through hole 120, the third inclined guide surface 326 guides the plug 320 to prevent the plug 320 from being deflected.

[0042] In some specific embodiments of the present invention, Figure 2 and Figure 7 As shown, a support ring 111 extends from the inner wall of the water passage 110. The support ring 111 may be formed by radially extending from the inner wall of the water passage 110. A water hole 120 is defined on the support ring 111. A second flange 343 is provided on the outer wall of the surrounding edge 340, and the second flange 343 may be an arc-shaped protrusion arranged around the surrounding edge 340. A slot 350 is provided between the second flange 343 and the surrounding edge 340. An edge of one end of the valve core 200 is inserted into the slot 350. At the same time, the surrounding edge 340 extends into the valve cavity 212, and the top end of the surrounding edge 340 abuts against the static grinding plate 240, thereby limiting the static grinding plate 240 and preventing the static grinding plate 240 from falling out of the valve cavity 212. In this embodiment, the end of the valve body 210 is adapted to be inserted into the slot 350. After the valve core 200 is installed, the valve core 200 presses the seal 300 onto the support ring 111 in the radial direction. The second flange 343 abuts against the circumferential inner wall of the water passage 110 in the radial direction of the seal 300. The second flange 343 and the water passage 110 are closely fitted in the radial direction to form a side wall water seal, and there is no need for a sealed fit between the seal 300 and the support ring 111 in the axial direction, that is, the valve core 200 does not need to apply a large pressure on the seal 300 in the axial direction, and the dynamic grinding plate 230 and the static grinding plate 240 inside the valve core 200 will not be subject to a large squeezing effect of the sealing gasket. The operating torque required for the valve core 200 when rotating is basically consistent, and the user's operation process is stable and light. When the plug 320 leaves the water hole 120 , one end of the plug 320 close to the valve core 200 can abut against the static grinding plate 240 , and the static grinding plate 240 limits the stroke of the plug 320 to ensure that the valve membrane 310 can be elastically reset.

[0043] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0044] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0046] In the description of this specification, the description of reference terms such as "some specific embodiments" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0047] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A valve component, characterized in that: include: A valve seat (100), wherein a water flow channel (110) is provided on the valve seat (100), and a water hole (120) is opened on the water flow channel (110); A valve core (200), the valve core (200) being mounted on the valve seat (100), the valve core (200) being capable of controlling the opening and closing of the water flow channel (110); A sealing member (300) is installed and intercepted at the water through hole (120), the sealing member (300) comprises a valve membrane (310) capable of elastic deformation and a plug column (320) arranged on the valve membrane (310), the valve membrane (310) can drive the plug column (320) to move elastically relative to the water through hole (120), the valve membrane (310) tends to move in a direction in which the plug column (320) blocks the water through hole (120), and a plurality of water through holes (330) are opened on the valve membrane (310).

2. The valve member according to claim 1, characterized in that: The sealing member (300) further comprises a surrounding edge (340), wherein the surrounding edge (340) defines a hollow cylindrical installation cavity (341), the plug column (320) is coaxial with the installation cavity (341), the valve membrane (310) is connected between the inner wall of the installation cavity (341) and the outer wall of the plug column (320), and the cross section of the valve membrane (310) along the axial direction of the installation cavity (341) is U-shaped, and the U-shaped opening of the cross section of the valve membrane (310) faces the water through hole (120).

3. The valve member according to claim 2, characterized in that: The valve membrane (310) is provided with a plurality of notches (331), the plurality of notches (331) are distributed along the circumference of the valve membrane (310), the notches (331) extend along the U-shaped cross-section direction of the valve membrane (310), and the notches (331) constitute the water passage holes (330).

4. The valve member according to claim 3, characterized in that: A plurality of first convex ribs (342) are provided on the inner wall of the installation cavity (341), and the first convex ribs (342) are arranged to penetrate the notch (331) along the axial direction of the installation cavity (341).

5. The valve member according to claim 2, characterized in that: The plurality of water passage holes (330) are in the form of fine holes and are evenly distributed on the valve membrane (310).

6. The valve member according to claim 1 or 2, characterized in that: A first convex edge (321) is provided on the periphery of the plug column (320), the first convex edge (321) is connected to the valve membrane (310), a concave arc surface (322) is provided on one side surface of the first convex edge (321), the concave arc surface (322) is arranged along the circumference of the plug column (320), and the concave arc surface (322) faces the water through hole (120).

7. The valve member according to claim 6, characterized in that: The cross-section of the first convex portion (321) in the axial direction of the plug (320) includes a first inclined guide surface (323) and an extended edge (324), wherein the extended edge (324) radially protrudes from the edge of the first inclined guide surface (323), the valve membrane (310) is connected to the extended edge (324), and the inner wall of the water through hole (120) is provided with a second inclined guide surface (121) adapted to the first inclined guide surface (323), and the extended edge (324) can overlap the periphery of the water through hole (120).

8. The valve member according to claim 6, characterized in that: A plurality of guide ribs (325) are provided on the peripheral wall of one end of the plug column (320) facing the water through hole (120), and the guide ribs (325) have a third inclined guide surface (326) inclined along the axial direction of the plug column (320).

9. The valve member according to claim 2, characterized in that: A support ring (111) extends from the inner wall of the water passage (110), the support ring (111) defines the water hole (120), a second flange (343) is provided on the outer wall of the surrounding edge (340), a slot (350) is provided between the second flange (343) and the surrounding edge (340), one end edge of the valve core (200) is inserted into the slot (350), the valve core (200) presses the sealing member (300) onto the support ring (111), and the second flange (343) seals against the circumferential inner wall of the water passage (110).

10. The valve member according to claim 1 or 9, characterized in that: The valve core (200) comprises a valve body (210), a valve stem (220), a dynamic grinding plate (230) and a static grinding plate (240); the valve body (210) is provided with a water inlet (211), a valve cavity (212) and a water outlet (213) which are connected in sequence; the sealing member (300) is installed at the water inlet (211); the valve stem (220) is rotatably inserted into the valve cavity (212); the dynamic grinding plate (230) is located in the valve body (210) and is fixed on the valve stem (220); The static grinding plate (240) is fixed in the valve cavity (212); the dynamic grinding plate (230) is provided with a first through hole (231); the static grinding plate (240) is provided with a second through hole (241); the dynamic grinding plate (230) and the static grinding plate (240) are arranged in close contact with each other; the first through hole (231) and the second through hole (241) can be relatively misaligned or connected; when the first through hole (231) and the second through hole (241) are connected, the water inlet (211) and the water outlet (213) are connected.

11. A water-using device, characterized in that: A valve member comprising the valve member according to any one of claims 1 to 10.

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