Water inlet valve and closestool

Abstract

The utility model relates to a water inlet valve and a closestool. The water inlet valve comprises a valve body, a deformation structure, a water inlet part, a water outlet part and an on-off mechanism, and the valve body is provided with an on-off opening; the deformation structure is connected to the valve body, and an air cavity communicating with the on-off opening is defined by the deformation structure and the valve body. The water inlet part is connected with the valve body and is provided with a water inlet communicated with the on-off opening; the water outlet part is connected with the valve body and is provided with a water outlet communicated with the air cavity; the on-off mechanism comprises a moving part and a sealing part, part of the moving part is located between the water inlet part and the valve body, part of the moving part extends into the air cavity through the on-off opening, the moving part is in sliding fit with the valve body, and the sealing part is connected to the moving part and located on the side, opposite to the deformation structure, of the valve body. And the sealing piece is used for blocking the on-off opening. According to the water inlet valve, extrusion borne by the deformation structure in the switching process can be reduced, and the risk that the deformation structure is damaged is reduced.

Description

Technical Field

[0001] This application relates to the technical field of valve elements, particularly to inlet valves and toilets. Background Art

[0002] In a toilet, an inlet valve is usually provided. The inlet valve is connected to an external water source, such as the water supply from a public pipe network. The toilet controls the on-off of the water inlet by controlling the switch of the inlet valve. In a traditional toilet, the inlet valve usually drives a sealing rubber plug through the movement of a valve core column to achieve the conduction of the water inlet waterway. However, in a traditional inlet valve, the pushing action of the valve core column on the sealing rubber plug easily causes damage to the sealing rubber plug, resulting in a decrease in the service life of the inlet valve. Summary of the Invention

[0003] Based on this, it is necessary to provide an inlet valve and a toilet to improve the structural reliability of the inlet valve and extend the service life of the inlet valve.

[0004] An inlet valve, comprising:

[0005] A valve body, provided with a on-off port;

[0006] A deformation structure, connected to the valve body and enclosing with the valve body to form an air cavity communicating with the on-off port;

[0007] An inlet part, connected to the valve body and provided with an inlet port communicating with the on-off port;

[0008] An outlet part, connected to the valve body and provided with an outlet port communicating with the air cavity; and,

[0009] A on-off mechanism, comprising a moving part and a sealing part. The moving part is partially located between the inlet part and the valve body, partially extends through the on-off port into the air cavity. The moving part is slidably matched with the valve body. The sealing part is connected to the moving part and is located on the side of the valve body facing away from the deformation structure. The sealing part blocks the on-off port.

[0010] In the initial state of the above-mentioned water inlet valve, the sealing member blocks the on-off port, and the water inlet valve is in the off state. When a suction force is provided to the water outlet through a pump element such as a water pump, the negative pressure generated in the air chamber will drive the deformation structure to deform and partially move towards the on-off mechanism. The movement of the deformation structure can push the moving member to move relative to the valve body, thereby driving the sealing member to disengage from the on-off port, enabling the water inlet to communicate with the air chamber and the water outlet through the on-off port, thus opening the water inlet valve, and allowing the external water source connected to the water inlet to flow out from the water outlet through the water inlet valve. When the water pump stops providing suction force to the water outlet, the deformation structure returns to its original state, the on-off mechanism resets, and the sealing member blocks the on-off port again, realizing the disconnection of the water inlet valve. Thus, during the switching process between the off and on states of the water inlet valve, it is the deformation of the deformation structure that causes the movement of the on-off mechanism, rather than the on-off mechanism pushing the deformation structure to deform, which is beneficial to reducing the extrusion force on the deformation structure during the switching process and reducing the risk of damage to the deformation structure, thereby being beneficial to the structural reliability and service life of the water inlet valve. At the same time, the sealing member is located on the side of the valve body facing away from the deformation structure and can move away from the valve body to disengage from the on-off port or move closer to the valve body to block the on-off port, which is also beneficial to reducing the risk of damage to the sealing member during movement and improving the structural reliability and service life.

[0011] In one embodiment, the deformation structure includes a pressing sheet and an elastic diaphragm. The elastic diaphragm is connected to the valve body and encloses the air chamber with the valve body. The pressing sheet is connected to the side of the elastic diaphragm facing the air chamber, and the pressing sheet is opposite to the moving member.

[0012] In one embodiment, the pressing sheet includes a body portion and a limiting portion. The body portion is disposed on the elastic diaphragm, and the limiting portion is connected to the side of the body portion facing away from the elastic diaphragm. The limiting portion surrounds the end of the moving member away from the water inlet portion.

[0013] In one embodiment, the moving member includes a rod portion and an abutting portion. The rod portion passes through the on-off port and is slidably engaged with the valve body. The abutting portion is circumferentially connected to the rod portion. The sealing member is located between the abutting portion and the valve body, and the side of the sealing member facing away from the valve body abuts against the abutting portion.

[0014] In one embodiment, the on-off mechanism further includes an elastic element. The elastic element is located on the side of the abutting portion facing away from the valve body and is sleeved on the rod portion. Two ends of the elastic element respectively abut against the abutting portion and the water inlet portion.

[0015] In one embodiment, the valve body includes a main body portion, a mounting portion, and a switching portion. The main body portion is a hollow structure with an open side. The deformation structure is connected to the main body portion at the open side of the main body portion and encloses the air cavity with the main body portion. The mounting portion and the switching portion are both connected to the side of the main body portion facing away from the deformation structure. The mounting portion surrounds the switching portion, and the switching portion forms the switching port. The moving member passes through the switching portion, and the sealing member is located on the side of the switching portion facing away from the main body portion.

[0016] In one embodiment, the water inlet portion includes a housing and an inner cover that are connected to each other. The housing is partially embedded between the mounting portion and the switching portion. The housing covers the moving member and the switching portion. The water inlet is provided on the housing. The inner cover surrounds the sealing member, and the moving member is slidably engaged with the inner cover. The water outlet portion is connected to the side of the main body portion facing away from the deformation structure.

[0017] In one embodiment, the inner cover surrounds at least a part of the switching portion, and the two opposite sides of the inner cover are spaced apart from the switching portion and the housing.

[0018] In one embodiment, the water inlet valve further includes a quick connector, and the quick connector is connected to the side of the housing facing away from the water outlet portion and communicates with the water inlet.

[0019] A toilet includes the water inlet valve as described in any one of the above embodiments. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of the water inlet valve in some embodiments.

[0021] Figure 2 For Figure 1 It is a schematic structural diagram of the water inlet valve from another angle as shown.

[0022] Figure 3 For Figure 1 It is a schematic cross-sectional diagram of the water inlet valve as shown.

[0023] Figure 4 For Figure 1 It is an exploded schematic diagram of the water inlet valve as shown.

[0024] Figure 5 It is a schematic structural diagram of the valve body and the water outlet portion in some embodiments.

[0025] Figure 6 It is a schematic structural diagram of the water inlet portion and the quick connector in some embodiments.

[0026] Reference Signs:

[0027] 10. Water inlet valve; 11. Valve body; 111. Main body part; 1111. Air cavity; 112. Installation part; 113. On-off part; 1131. On-off port; 12. Water inlet part; 121. Outer shell; 1211. Water inlet; 122. Inner cover; 123. Sealing ring; 124. Rib; 13. Water outlet part; 131. Water outlet; 14. On-off mechanism; 141. Moving part; 1411. Rod part; 1412. Contact part; 142. Sealing member; 143. Elastic element; 15. Deformation structure; 151. Pressing piece; 1511. Body part; 1512. Limiting part; 152. Elastic diaphragm; 16. Quick connector; 17. Cover body. Detailed implementation manners

[0028] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present application.

[0030] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0031] In this application, unless otherwise clearly specified and defined, if terms such as "installed", "connected", "linked", "fixed", etc. appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] In this application, unless otherwise clearly specified and defined, if there is a description such as a first feature being "on" or "under" a second feature, its meaning can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is at a higher horizontal level than the second feature. The first feature being "under", "beneath" and "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is at a lower horizontal level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there can also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If so, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0034] Please refer to Figure 1 、 Figure 2 and Figure 3 , Figure 1 and Figure 2 respectively show schematic structural diagrams of the water inlet valve 10 at different angles in some embodiments of this application. Figure 3The cross-sectional schematic diagram of the water inlet valve 10 in some embodiments is shown. In some embodiments, the water inlet valve 10 includes a valve body 11, a water inlet part 12 and a water outlet part 13 connected to the valve body 11. The water inlet part 12 is provided with a water inlet 1211, the valve body 11 is provided with a connection-disconnection port 1131, and the water outlet part 13 is provided with a water outlet 131. The water inlet 1211 is connected to the water outlet 131 through the connection-disconnection port 1131. The water inlet valve 10 further includes a connection-disconnection mechanism 14 capable of blocking or releasing the connection-disconnection port 1131. When the connection-disconnection mechanism 14 blocks the connection-disconnection port 1131, the connection between the water inlet 1211 and the water outlet 131 is disconnected, and the water inlet valve 10 is in a disconnected state. When the connection-disconnection mechanism 14 releases the connection-disconnection port 1131, the water inlet 1211 and the water outlet 131 are connected through the connection-disconnection port 1131, and the water inlet valve 10 is in an open state.

[0035] The water inlet valve 10 provided in the present application can be used in a toilet, for example, for controlling the water inlet of the toilet water tank. When the water inlet valve 10 is used to control the water inlet of the water tank, the water inlet 1211 of the water inlet valve 10 can be connected to an external water source, such as a public pipe network water source, and the water outlet 131 of the water inlet valve 10 is connected to the water tank. When the water inlet valve 10 is in an open state, the water from the external water source can flow into the water inlet valve 10 from the water inlet 1211, flow through the water inlet valve 10 through the connection-disconnection port 1131, and then flow out of the water inlet valve 10 from the water outlet 131, so as to flow into the water tank. Of course, the application of the water inlet valve 10 is not limited to this. The water inlet valve 10 can also be used to control the water inlet of other components of the toilet, such as the water used for the cleaning water path in the toilet. The water inlet valve 10 can also be used in any other applicable products that need to control the water inlet. In the present application, the application scenario of the water inlet valve 10 is not limited.

[0036] Combined Figure 2 、 Figure 3 and Figure 4 As shown, in some embodiments, the water inlet valve 10 further includes a deformation structure 15. At least part of the deformation structure 15 can undergo elastic deformation. The deformation structure 15 is connected to the valve body 11 and encloses an air cavity 1111 communicating with the connection-disconnection port 1131 with the valve body 11. The water inlet 1211, the connection-disconnection port 1131, the air cavity 1111 and the water outlet 131 are connected in sequence. The connection-disconnection mechanism 14 includes a moving part 141 and a sealing part 142. The moving part 141 is partially located between the water inlet part 12 and the valve body 11, and partially extends into the air cavity 1111 through the connection-disconnection port 1131. The moving part 141 is slidably matched with the valve body 11, for example, it can slide relative to the valve body 11 in a direction close to or away from the deformation structure 15. The sealing part 142 is connected to the moving part 141 and is located on the side of the valve body 11 facing away from the deformation structure 15. The sealing part 142 abuts against the valve body 11 on the side of the valve body 11 facing away from the deformation structure 15 to block the connection-disconnection port 1131.

[0037] It can be understood that when the seal 142 blocks the on-off port 1131, the water inlet valve 10 is in the off state, and the air chamber 1111 in the valve body 11 is only connected to the outside through the water outlet 131. When a suction force is provided to the water outlet 131 by a pump element such as a water pump or an air pump, a negative pressure will be generated in the air chamber 1111. The negative pressure in the air chamber 1111 can drive the deformation structure 15 to deform and partially move towards the on-off mechanism 14. For example, the part that can undergo elastic deformation bulges towards the side where the on-off mechanism 14 is located. When the deformation structure 15 deforms to contact the moving part 141, the deformation of the deformation structure 15 can push the moving part 141 to move relative to the valve body 11 in a direction away from the deformation structure 15, thereby driving the seal 142 away from the valve body 11 and disengaging from the on-off port 1131, so that the water inlet 1211 is connected to the air chamber 1111 and the water outlet 131 through the on-off port 1131, enabling the water inlet valve 10 to open, and allowing the external water source to flow out from the water outlet 131 through the water inlet valve 10. When the water pump stops providing a suction force to the water outlet 131, the deformation structure 15 returns to its original state, that is, the deformation element stops pushing the on-off mechanism 14. The moving part 141 drives the seal 142 to move towards the deformation structure 15 until the seal 142 abuts against the valve body 11 to block the on-off port 1131, the on-off mechanism 14 returns to its original state, and the water inlet valve 10 is turned off. Thus, it can be seen that when the water inlet valve 10 is applied to a toilet, for example, for controlling the water inlet of a toilet tank, a pump element such as a water pump or an air pump needs to be provided at one end of the water outlet 131 to cooperate with the water inlet valve 10, and the water inlet valve 10 is controlled to open by providing a suction force to the water outlet 131.

[0038] In the above water inlet valve 10, during the process of switching between the off and on states, it is always the deformation of the deformation structure 15 that causes the on-off mechanism 14 to move, rather than the on-off mechanism 14 pushing the deformation structure 15 to deform. This is beneficial to reducing the extrusion force on the deformation structure 15 during the switching process, reducing the risk of damage to the deformation structure 15, and thus is beneficial to the structural reliability and service life of the water inlet valve 10. At the same time, the seal 142 is located on the side of the valve body 11 opposite to the deformation structure 15, and can move away from the valve body 11 to disengage from the on-off port 1131 or move closer to the valve body 11 to block the on-off port 1131, which is also beneficial to reducing the risk of damage to the seal 142 during the movement process, and improving the structural reliability and service life.

[0039] Reference Figure 3 and Figure 4As shown, in some embodiments, the deformation structure 15 includes a pressing piece 151 and an elastic diaphragm 152. The elastic diaphragm 152 is connected to the valve body 11 and encloses an air cavity 1111 with the valve body 11. The pressing piece 151 is connected to the side of the elastic diaphragm 152 facing the air cavity 1111, and the pressing piece 151 faces the moving part 141. The material of the elastic diaphragm 152 includes but is not limited to any applicable elastic deformation material such as rubber, and the material of the pressing piece 151 includes but is not limited to any applicable rigid materials such as plastics and metals. It can be understood that when a negative pressure is generated in the air cavity 1111, the elastic diaphragm 152 deforms, which can drive the pressing piece 151 to move in the direction close to the moving part 141 until the pressing piece 151 pushes the moving part 141 to drive the seal 142 to disengage from the on-off port 1131. The combination of the pressing piece 151 and the elastic diaphragm 152 can not only achieve elastic deformation, but also more stably apply force to the moving part 141 through the pressing piece 151, driving the moving part 141 to slide relative to the valve body 11, which is beneficial to improving the reliability and performance stability of the operation of the water inlet valve 10. Of course, the deformation structure 15 can also be entirely made of an elastic deformation material, or a combination of various other material elements, as long as it can deform when a negative pressure is generated in the air cavity 1111 to drive the on-off mechanism 14 to move to open the water inlet valve 10.

[0040] In some embodiments, the pressing piece 151 includes a body portion 1511 and a limiting portion 1512. The body portion 1511 is disposed on the side of the elastic diaphragm 152 facing the air cavity 1111 and faces the moving part 141. The limiting portion 1512 is connected to the side of the body portion 1511 facing away from the elastic diaphragm 152, and the limiting portion 1512 surrounds the end of the moving part 141 away from the water inlet portion 12. Thus, the moving part 141 does not need to be connected to the pressing piece 151. For example, in the initial state, the moving part 141 can be spaced apart from the pressing piece 151. Due to the limiting effect of the limiting portion 1512 on the moving part 141, during the movement of the moving part 141 and the pressing piece 151, the moving part 141 is not easily deviated to affect the movement stability. At the same time, the relatively independent design of the moving part 141 and the pressing piece 151 can also reduce the influence of the moving part 141 on the deformation structure 15 such as pulling and squeezing, which is beneficial to improving the service life of the deformation structure 15 and is also beneficial to the separate maintenance of the moving part 141 and the deformation structure 15. Of course, in some other embodiments, the pressing piece 151 may not be provided with the limiting portion 1512, and the moving part 141 is connected to the pressing piece 151, as long as the movement of the pressing piece 151 can drive the moving part 141 to drive the seal 142 to move to achieve the opening and closing of the water inlet valve 10.

[0041] In some embodiments, the moving member 141 includes a rod portion 1411 and an abutting portion 1412. The rod portion 1411 passes through the on-off port 1131 and is slidably engaged with the valve body 11. Both ends of the rod portion 1411 extend into the air cavity 1111 and the water inlet portion 12 respectively. The abutting portion 1412 is circumferentially connected to the rod portion 1411. The rod portion 1411 may be generally in the shape of a long strip column, and the abutting portion 1412 may be generally in the shape of a ring. The seal 142 is located between the abutting portion 1412 and the valve body 11, and one side of the seal 142 facing away from the valve body 11 abuts against the abutting portion 1412. The abutting portion 1412 can limit the seal 142 on the side of the seal 142 facing away from the valve body 11, preventing the seal 142 from loosening due to the mutual force between the seal 142 and the valve body 11, which is beneficial to improving the structural reliability of the water inlet valve 10.

[0042] In some embodiments, the on-off mechanism 14 further includes an elastic element 143. The elastic element 143 includes but is not limited to any applicable element that can undergo elastic deformation, such as a spring, rubber, etc. The elastic element 143 is located on the side of the abutting portion 1412 facing away from the valve body 11 and is sleeved on the end of the rod portion 1411. Both ends of the elastic element 143 abut against the abutting portion 1412 and the water inlet portion 12 respectively. It can be understood that when the elastic deformation of the deformation structure 15 drives the moving member 141 to move away from the deformation structure 15, the relative movement between the abutting portion 1412 and the water inlet portion 12 will squeeze the elastic element 143, causing the elastic element 143 to undergo elastic deformation. When the deformation structure 15 is restored, the elastic restoring force of the elastic element 143 will push the abutting portion 1412 to drive the entire moving member 141 to move towards the deformation structure 15 until the seal 142 abuts against the valve body 11 to block the on-off port 1131. The setting of the elastic element 143 can drive the seal 142 to block the on-off port 1131 when the water inlet valve 10 needs to be disconnected, avoiding the insufficient sensitivity of the relative movement between the moving member 141 and the valve body 11 from affecting the disconnection control and improving the stability of the performance of the water inlet valve 10. At the same time, the elastic element 143 is sleeved on the end of the rod portion 1411 and the limiting effect of the abutting portion 1412 on the elastic element 143 can also prevent the elastic element 143 from shifting or detaching from the moving member 141, which is beneficial to improving the structural reliability of the water inlet valve 10.

[0043] It should be noted that in some other embodiments, the elastic element 143 can also be omitted. During the use of the water inlet valve 10, the placement orientation of the water inlet valve 10 can be designed such that the rod portion 1411 extends in the vertical direction, and the deformation structure 15 is located at the position vertically downward of the rod portion 1411. When the deformation structure 15 is restored, the on-off mechanism 14 can fall back under the action of gravity until the seal 142 blocks the on-off port 1131, which is also beneficial to realizing the opening and closing control of the water inlet valve 10. Of course, when the water inlet valve 10 is closed, the force applied by the elastic element 143 to the abutting portion 1412 can also improve the sealing degree of the seal 142 to the on-off port 1131 and reduce the risk of water leakage when the water inlet valve 10 is closed.

[0044] The specific structures of the valve body 11, the water inlet portion 12, and the water outlet portion 13 are not limited, as long as the cooperation between the deformation structure 15 and the on-off mechanism 14 can open or close the on-off port 1131. Figure 3 、 Figure 4 and Figure 5 As shown in , in some embodiments, the valve body 11 includes a main body portion 111, a mounting portion 112, and an on-off portion 113. The main body portion 111 is a hollow structure with an open side. The deformation structure 15 is connected to the main body portion 111 at the open side of the main body portion 111 and encloses an air cavity 1111 with the main body portion 111. The mounting portion 112 and the on-off portion 113 are both connected to the side of the main body portion 111 facing away from the deformation structure 15. The mounting portion 112 is arranged around the on-off portion 113. The on-off port 1131 is opened in the on-off portion 113. The moving member 141 passes through the on-off portion 113 and is slidably engaged with the on-off portion 113. The seal 142 is located on the side of the on-off portion 113 facing away from the main body portion 111. Driven by the moving member 141, the seal 142 can move along the axial direction of the on-off portion 113 outside the on-off portion 113 in a direction close to or away from the on-off portion 113 to block or release the on-off port 1131. The interference between the seal 142 and the on-off portion 113 is small, which can reduce the damage of the seal 142 during operation and extend the service life of the water inlet valve 10.

[0045] As shown in Figure 3 、 Figure 4 and Figure 6As shown, in some embodiments, the water inlet portion 12 includes a housing 121 and an inner cover 122 connected to each other. The housing 121 irradiates the moving member 141 and the on-off portion 113. A part of the housing 121 is embedded between the mounting portion 112 and the on-off portion 113. The outer peripheral surface of the housing 121 and the inner peripheral surface of the mounting portion 112 can be sealingly connected through two spaced sealing rings 123. The water inlet 1211 is provided on the housing 121. The inner cover 122 is disposed around the sealing member 142, the elastic element 143, and the portion of the moving member 141 located outside the on-off portion 113. The abutting portion 1412 is slidably engaged with the inner cover 122. For example, a plurality of circumferentially spaced ribs 124 can be provided on the inner peripheral surface of the abutting portion 1412. The plurality of ribs 124 are disposed around the abutting portion 1412, and the outer peripheral surface of the abutting portion 1412 is slidably engaged with the plurality of ribs 124. In some embodiments, the inner cover 122 also surrounds a part of the on-off portion 113, for example, the part of the on-off portion 113 close to the sealing member 142. The two opposite sides of the inner cover 122 are spaced from the on-off portion 113 and the housing 121.

[0046] It can be understood that when the sealing member 142 disengages from the on-off portion 113 to open the on-off port 1131, the external water source flows through the space between the inner cover 122 and the housing 121 and then through the space between the inner cover 122 and the on-off portion 113 in sequence from the water inlet 1211, and then flows into the on-off portion 113 from the on-off port 1131 and into the air chamber 1111 through the on-off portion 113. Through the reasonable design of the structures of the components of the water inlet valve 10, the water flow path can be reasonably planned. At the same time, the housing 121 and the mounting portion 112 can also provide a protective effect on the components inside the housing 121. The cooperation between the outer periphery of the housing 121 and the inner peripheral surface of the mounting portion 112 is also beneficial to improving the sealing performance between the water inlet portion 12 and the valve body 11. Moreover, the inner cover 122 can also provide an effective limiting and protective effect on the on-off mechanism 14. Thus, it is beneficial to improve the performance reliability and structural stability of the water inlet valve 10.

[0047] In some embodiments, the water outlet part 13 is connected to the side of the main body part 111 facing away from the deformation structure 15, and at least partially overlaps with the outer shell 121 in the height direction. Thus, the structural relationship among the water outlet part 13, the valve body 11, and the water inlet part 12 can be reasonably configured, the space utilization efficiency can be improved, the occupied space of the water inlet valve 10 can be compressed, and at the same time, the water inlet part 12 and the water outlet part 13 can be docked with the water source and the water tank on the same side of the valve body 11, which is also beneficial to the spatial layout in the toilet. In some embodiments, the water inlet valve 10 further includes a quick connector 16. The quick connector 16 is connected to the side of the outer shell 121 facing away from the water outlet part 13 and communicates with the water inlet 1211. By integrating the quick connector 16 into the water inlet valve 10, the docking of the water inlet valve 10 with the external water source becomes more convenient and fast. At the same time, the positional relationship among the quick connector 16, the water inlet part 12, and the water outlet part 13 is also designed. While improving the space utilization efficiency and compressing the occupied space, the docking of the quick connector 16 and the water outlet part 13 with external components will not interfere with each other, and the performance stability of the water inlet valve 10 is improved.

[0048] Reference Figure 4 As shown, in some embodiments, the main body part 111, the installation part 112, and the on-off part 113 of the valve body 11 are integrally formed, the valve body 11 and the water outlet part 13 are integrally formed, and the quick connector 16 and the water inlet part 12 are integrally formed. Thus, the assembly precision among the components of the water inlet valve 10 can be improved, and the structural reliability can be enhanced. At the same time, the quick connector 16 and the water inlet part 12 can also be disassembled and assembled as a whole from the valve body 11, which is beneficial to the disassembly, assembly, and maintenance of the on-off mechanism 14 between the water inlet part 12 and the valve body 11, and the convenience of use is improved.

[0049] In some embodiments, the water inlet valve 10 further includes a cover body 17. The cover body 17 covers the open side of the main body part 111 and is connected to the main body part 111. The cover body 17 does not cover the deformation structure 15. Setting the cover body 17 can provide a protective effect on the deformation structure 15, and further improve the performance stability and structural reliability of the water inlet valve 10.

[0050] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0051] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several deformations and improvements can be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A water inlet valve, characterized in that: include: The valve body is provided with a through-break port; A deformation structure connected to the valve body and surrounding the valve body to form an air cavity communicating with the on-off port; A water inlet portion, connected to the valve body and provided with a water inlet connected to the on-off port; A water outlet portion, connected to the valve body and provided with a water outlet communicating with the air cavity; as well as, The on-off mechanism includes a moving part and a sealing part. The moving part is partially located between the water inlet and the valve body, and partially extends into the air cavity through the on-off port. The moving part is slidably matched with the valve body. The sealing part is connected to the moving part and is located on the side of the valve body facing away from the deformation structure. The sealing part blocks the on-off port.

2. The water inlet valve according to claim 1, characterized in that: The deformation structure includes a pressing plate and an elastic diaphragm. The elastic diaphragm is connected to the valve body and is surrounded by the valve body to form the air cavity. The pressing plate is connected to a side of the elastic diaphragm facing the air cavity, and the pressing plate is opposite to the moving part.

3. The water inlet valve according to claim 2, characterized in that: The pressing sheet includes a main body and a limiting part. The main body is arranged on the elastic diaphragm. The limiting part is connected to a side of the main body facing away from the elastic diaphragm. The limiting part surrounds the end of the moving part away from the water inlet part.

4. The water inlet valve according to claim 1, characterized in that: The moving part includes a rod and an abutment part. The rod passes through the on-off port and slidably cooperates with the valve body. The abutment part is circumferentially connected to the rod. The sealing part is located between the abutment part and the valve body. The side of the sealing part facing away from the valve body abuts against the abutment part.

5. The water inlet valve according to claim 4, characterized in that: The on-off mechanism further comprises an elastic element, which is located on a side of the abutting portion facing away from the valve body and sleeved on the rod portion, and two ends of the elastic element abut against the abutting portion and the water inlet portion respectively.

6. The water inlet valve according to claim 1, characterized in that: The valve body includes a main body, a mounting portion and a switching portion. The main body is a hollow structure with an opening on one side. The deformation structure is connected to the main body at the opening of the main body and is surrounded by the main body to form the air cavity. The mounting portion and the switching portion are both connected to the side of the main body facing away from the deformation structure. The mounting portion is arranged around the switching portion, and the switching portion forms the switching opening. The moving part passes through the switching portion, and the sealing member is located on the side of the switching portion facing away from the main body.

7. The water inlet valve according to claim 6, characterized in that: The water inlet part includes an outer shell and an inner cover that are connected to each other. The outer shell is partially embedded between the mounting part and the on-off part. The outer shell covers the moving part and the on-off part. The water inlet is arranged on the outer shell. The inner cover is arranged around the sealing part. The moving part is slidably matched with the inner cover. The water outlet part is connected to the side of the main body that is away from the deformation structure.

8. The water inlet valve according to claim 7, characterized in that: The inner cover is disposed around at least a portion of the switching portion, and two opposite sides of the inner cover are spaced apart from the switching portion and the outer shell.

9. The water inlet valve according to claim 7, characterized in that: The water inlet valve also includes a quick connector, which is connected to a side of the housing facing away from the water outlet and is connected to the water inlet.

10. A toilet, characterized in that: It comprises a water inlet valve as described in any one of claims 1 to 9.

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