Valve assembly

Abstract

The utility model relates to the technical field of fluid management, in particular to a valve assembly. The valve assembly comprises a valve element seat and a blocking piece, the valve element seat is provided with a first opening and a second opening which are arranged in the first direction, and the blocking piece blocks the first opening; a connecting structure is arranged between the valve element seat and the plugging piece and comprises a first convex part and a second convex part, the first convex part is arranged on the side wall of the valve element seat, and the first convex part is in interference fit with the side wall, right opposite to the first convex part, of the plugging piece; the second convex part is arranged on the side wall of the plugging piece and is in interference fit with the side wall, right opposite to the second convex part, of the valve element seat; in the first direction, the second protruding part is located between the first protruding part and the second opening, and the second protruding part is in limiting fit with the first protruding part. According to the valve assembly, by optimizing the structure of the valve assembly, a customer can conveniently disassemble and assemble the whole structure of the valve assembly, the disassembly difficulty can be reduced, secondary use can be guaranteed, then the use feeling of the customer can be improved, and the product performance can be guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of fluid management technology, and more specifically, to a valve assembly. Background Technology

[0002] Existing one-way valves use laser welding to connect two structural components to achieve the functions of valve core installation and sealing the valve seat mounting port. However, because the weld strength is far less than the force experienced by the one-way valve in actual use, the two welded components are easily torn apart at the weld point to compensate for the gap in the retaining ring during use. Therefore, due to the separation of the two structural components, it is difficult to remove the bottom component from the valve seat mounting port when the customer disassembles and reassembles the valve. Furthermore, the separation of the two structural components affects the customer's ability to reuse the valve, compromising product performance. Utility Model Content

[0003] This application provides a valve assembly that, through its optimized structure, facilitates easy disassembly and assembly by the customer. This not only reduces the difficulty of disassembly but also ensures secondary use, thereby improving the customer's user experience and guaranteeing product performance.

[0004] To achieve the above objectives, this application provides a valve assembly, including: a valve core seat and a sealing member, wherein the valve core seat has a first opening and a second opening arranged along a first direction, and the sealing member blocks the first opening;

[0005] A connecting structure is provided between the valve core seat and the sealing member. The connecting structure includes a first protrusion and a second protrusion. The first protrusion is disposed on the side wall of the valve core seat, and the first protrusion is press-fitted with the side wall of the sealing member opposite to the first protrusion. The second protrusion is disposed on the side wall of the sealing member, and the second protrusion is press-fitted with the side wall of the valve core seat opposite to the second protrusion. Along the first direction, the second protrusion is located between the first protrusion and the second opening, and the second protrusion is limited to fit the first protrusion.

[0006] In one embodiment of this application, at least a portion of the second protrusion and the first protrusion are disposed opposite each other in the first direction, and the second protrusion and the first protrusion have a first gap greater than or equal to 0 mm in the first direction;

[0007] The valve assembly further includes a retaining ring, which is positioned along the first direction on the side of the plugging member opposite to the valve core seat, for limiting the relative position of the plugging member in the first direction; the retaining ring and the plugging member have a second gap of 0 mm in the first direction; the second gap is less than or equal to the first gap.

[0008] In one embodiment of this application, at least a portion of the second protrusion and the first protrusion are disposed opposite each other in the first direction, and the second protrusion and the first protrusion have a first gap greater than 0 mm in the first direction;

[0009] The valve assembly further includes a retaining ring, which is positioned along the first direction on the side of the plugging member opposite to the valve core seat, for limiting the relative position of the plugging member in the first direction; the retaining ring and the plugging member have a second gap greater than or equal to 0 mm in the first direction; the second gap is less than or equal to the first gap.

[0010] In one embodiment of this application, the sealing member includes a first connecting section extending into the valve core seat;

[0011] The first protrusion is located on the inner sidewall of the valve core seat;

[0012] And / or, the second protrusion is located on the outer wall of the first connecting segment.

[0013] In one embodiment of this application, the sealing member further includes a second connecting segment spaced apart from the first connecting segment, and a portion of the valve core seat is located between the first connecting segment and the second connecting segment.

[0014] In one embodiment of this application, the sealing member further includes a third connecting segment spaced apart from the first connecting segment, and a reinforcing rib is provided between the third connecting segment and the first connecting segment.

[0015] In one embodiment of this application, the sealing member has a first groove, the valve assembly further includes a valve core, at least a portion of the valve core is located within the first groove and moves along the inner wall of the first groove, and the third connecting segment forms part of the wall surface of the first groove.

[0016] In one embodiment of this application, the first protrusion has one or more first notches disposed along the first direction; the first protrusions on both sides of the first notch are spaced apart.

[0017] In one embodiment of this application, the second protrusion has one or more second notches disposed along the first direction, and the second protrusions on both sides of the second notch are spaced apart.

[0018] In one embodiment of this application, the valve assembly further includes a valve core and an elastic element. The valve core is placed within the accommodating space formed by the sealing element and the valve core seat. The valve core includes a head and a stem. The valve core seat has a valve port. The head is capable of opening or closing the valve port. One end of the stem is fixedly connected to the head, and the other end of the stem is slidably connected to the sealing element. The elastic element abuts between the valve core and the sealing element, and the elastic element is capable of closing the valve port along its axial direction. The valve core has a second groove, and the sealing element has a first groove. One end of the elastic element abuts against the bottom wall of the first groove, and the other end abuts against the bottom wall of the second groove. The outer side wall of the valve core has a protrusion that moves along the inner circumferential wall of the first groove.

[0019] In one embodiment of this application, a valve seat is further included, the valve seat having a valve chamber, an inlet channel communicating with the second opening, and an outlet channel, the valve chamber connecting the inlet channel and the outlet channel, and the valve chamber having an installation port; at least a portion of the sealing member and at least a portion of the valve core seat are installed in the valve chamber.

[0020] In one embodiment of this application, the valve seat forming the side wall of the valve chamber is provided with a limiting protrusion and a groove, the groove and the limiting protrusion being arranged along a first direction; the end of the valve core seat facing away from the sealing member abuts against the limiting protrusion to limit the position of the valve core seat relative to the valve seat in the first direction; at least a portion of the retaining ring is installed in the groove, the retaining ring being used to limit the position of the sealing member relative to the valve seat in the first direction.

[0021] One embodiment of this application described above has at least the following advantages or beneficial effects:

[0022] It should be noted that the valve core seat and the sealing element in this application employ two interference fits while providing a limiting fit, which enhances the connection between the valve core seat and the sealing element. Specifically, between the corresponding sidewalls at the insertion point of the valve core seat and the sealing element, the first protrusion on the valve core seat is interference-fitted with the sidewall of the sealing element, and the second protrusion on the sealing element is interference-fitted with the sidewall of the valve core seat. Therefore, the valve assembly provided in this application embodiment has multiple safeguards at the connection point between the sealing element and the valve core seat, further enhancing the connection between them.

[0023] Therefore, the valve assembly provided in this application, by optimizing its own structure, makes it easier for customers to disassemble and assemble the entire valve assembly. This not only reduces the difficulty of disassembly but also ensures secondary use, thereby improving the customer's user experience and ensuring product performance. Attached Figure Description

[0024] Figure 1 The diagram shown is a three-dimensional structural schematic of the valve assembly provided in an embodiment of this application;

[0025] Figure 2 What is shown is Figure 1 A schematic diagram of the planar structure of the central valve assembly;

[0026] Figure 3 What is shown is Figure 2 Sectional view at point BB;

[0027] Figure 4 What is shown is Figure 3 Enlarged view of point C in the middle;

[0028] Figure 5 The diagram shown is a three-dimensional structural schematic of the valve core seat in the valve assembly provided in the embodiment of this application;

[0029] Figure 6 What is shown is Figure 5 Enlarged structural diagram at point E;

[0030] Figure 7 The diagram shown is a three-dimensional structural schematic of the sealing element in the valve assembly provided in the embodiment of this application;

[0031] Figure 8 What is shown is Figure 7 Enlarged schematic diagram at point F in the middle.

[0032] The annotations in the attached figures are explained as follows:

[0033] 10. Valve assembly; 11. Valve core seat; 111. First protrusion; 112. First notch; 12. Sealing element; 121. Second protrusion; 122. Second notch; 123. First connecting section; 124. Second connecting section; 125. Third connecting section; 126. Reinforcing rib; 127. First groove; 13. Retaining ring; 14. Valve core; 141. Head; 142. Stem; 1421. Second groove; 15. Elastic element; 16. Valve seat; 161. Limiting protrusion; 162. Groove; 01. Valve chamber; 02. Inlet channel; 03. Outlet channel; 04. Mounting port. Detailed Implementation

[0034] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore their detailed description will be omitted.

[0035] This application provides a valve assembly. Figure 1 The diagram shown is a three-dimensional structural schematic of the valve assembly provided in an embodiment of this application; Figure 2 What is shown is Figure 1 A schematic diagram of the planar structure of the central valve assembly;

[0036] Figure 3 What is shown is Figure 2 Sectional view at point BB; Figure 4 What is shown is Figure 3 Enlarged view of point C in the middle; Figure 5 The diagram shown is a three-dimensional structural schematic of the valve core seat in the valve assembly provided in the embodiment of this application; Figure 6 What is shown is Figure 5 Enlarged structural diagram at point E; Figure 7 The diagram shown is a three-dimensional structural schematic of the sealing element in the valve assembly provided in the embodiment of this application; Figure 8 What is shown is Figure 7 A magnified view of point F in the middle. Please refer to the diagram. Figures 1 to 8 The schematic diagram shown shows that the valve assembly 10 includes a valve core seat 11 and a sealing member 12. The valve core seat 11 has a first opening and a second opening arranged along a first direction a, and the sealing member 12 blocks the first opening.

[0037] A connecting structure is provided between the valve core seat 11 and the sealing member 12. The connecting structure includes a first protrusion 111 and a second protrusion 121. The first protrusion 111 is disposed on the side wall of the valve core seat 11, and the first protrusion 111 and the sealing member 12 are press-fitted against the side wall of the first protrusion 111. The second protrusion 121 is disposed on the side wall of the sealing member 12, and the second protrusion 121 and the valve core seat 11 are press-fitted against the side wall of the second protrusion 121. Along the first direction a, the second protrusion 121 is located between the first protrusion 111 and the second opening, and the second protrusion 121 and the first protrusion 111 are in a limiting fit.

[0038] It is worth noting that the valve core seat 11 can be sleeved on the outside of the sealing member 12 to block the first opening. Alternatively, the sealing member 12 can be sleeved on the outside of the valve core seat 11 to block the first opening. As an example, the sealing member 12 is partially placed inside the first opening to block it. When assembling the valve assembly 10 provided in this application embodiment, the sealing member 12 can be inserted into the first opening of the valve core seat 11 along the first direction a, so that the valve core seat 11 and the sealing member 12 are interference-fitted.

[0039] It should be noted that, in this embodiment, the valve core seat 11 and the sealing member 12 are able to be limited and fitted at the same time, and two interference fits are used, which can enhance the connection between the valve core seat 11 and the sealing member 12.

[0040] Specifically, such as Figure 3As shown, between the corresponding sidewalls of the valve core seat 11 and the plug 12, the first protrusion 111 on the valve core seat 11 is press-fitted with the sidewall of the plug 12, and the second protrusion 121 on the plug 12 is press-fitted with the sidewall of the valve core seat 11.

[0041] Accordingly, the valve assembly 10 provided in this application embodiment has multiple safeguards at the connection position between the plugging member 12 and the valve core seat 11, which can further increase the strength of the connection between the valve core seat 11 and the plugging member 12.

[0042] Therefore, the valve assembly 10 provided in this application embodiment, by optimizing its own structure, can facilitate customers to disassemble and assemble the valve assembly 10 as a whole, which not only reduces the difficulty of disassembly, but also ensures secondary use, thereby improving the customer's user experience and ensuring product performance.

[0043] like Figure 3 As shown, at least a portion of the second protrusion 121 is disposed opposite to the first protrusion 111 in the first direction a, and the second protrusion 121 is located on the side of the first protrusion 111 near the second opening, so as to limit the second protrusion 121 by the first protrusion 111, thereby improving the structural stability of the valve core seat 11 and the sealing member 12 after being connected by the connecting structure.

[0044] like Figure 4 As shown, the second protrusion 121 and the first protrusion 111 have a first interval d1 in the first direction a. It is worth noting that the value of this first interval d1 can be greater than 0 or equal to 0, and can be set according to the requirements.

[0045] In a specific embodiment, such as Figure 4 As shown, the second protrusion 121 and the first protrusion 111 have a first gap d1 greater than 0 mm in the first direction a; the valve assembly 10 also includes a retaining ring 13, which is placed along the first direction a on the side of the sealing member 12 away from the valve core seat 11, and is used to limit the relative position of the sealing member 12 in the first direction a; the retaining ring 13 and the sealing member 12 have a second gap d2 greater than 0 mm in the first direction a; the second gap d2 is less than or equal to the first gap d1.

[0046] It should be noted that, in this specific embodiment, by setting the second interval d2 to be less than or equal to the first interval d1, when the fluid flows in reverse, the amount of movement of the sealing member 12 relative to the retaining ring 13 in the first direction a is less than the amount of movement of the sealing member 12 relative to the valve core seat 11 in the first direction a. This can prevent the connection structure between the sealing member 12 and the valve core seat 11 from failing, thereby improving the structural stability of the valve core seat 11 and the sealing member 12 after connection and ensuring the limiting fit effect.

[0047] In another specific embodiment, the second protrusion 121 and the first protrusion 111 have a first gap d1 greater than or equal to 0 mm in the first direction a; the valve assembly 10 also includes a retaining ring 13, which is placed along the first direction a on the side of the sealing member 12 away from the valve core seat 11, for limiting the relative position of the sealing member 12 in the first direction a; the retaining ring 13 and the sealing member 12 have a second gap d2 equal to 0 mm in the first direction a; the second gap d2 is less than or equal to the first gap d1.

[0048] It is worth noting that, assuming no machining or assembly errors, the second distance d2 between the retaining ring 13 and the sealing member 12 in the first direction a will be 0 mm. In this case, there is no room for movement between the sealing member 12 and the retaining ring 13 in the first direction a. Therefore, the sealing member 12 has no possibility of movement relative to the valve core seat 11 in the first direction a, which can effectively ensure the structural stability of the valve core seat 11 and the sealing member 12 after connection and guarantee the limiting fit effect.

[0049] Furthermore, setting the first interval d1 to be greater than 0mm can better ensure that the valve core seat 11 and the sealing component 12 have no possibility of movement in the first direction a, so as to ensure the limiting cooperation effect.

[0050] Please continue to refer to this. Figure 3 As shown in the structure, the valve assembly 10 also includes a valve core 14 and an elastic element 15. The valve core 14 is placed in the accommodating space formed by the sealing element 12 and the valve core seat 11. The valve core 14 includes a head 141 and a stem 142. The valve core seat 11 has a valve port. The head 141 can open or close the valve port. One end of the stem 142 is fixedly connected to the head 141, and the other end of the stem 142 is slidably connected to the sealing element 12. The elastic element 15 is disposed between the valve core 14 and the sealing element 12. The elastic element 15 can cause the valve core 14 to close the valve port along its axial direction. The valve core 14 has a second groove 1421, and the sealing element 12 has a first groove 127. One end of the elastic element 15 abuts against the bottom wall of the first groove 127, and the other end abuts against the bottom wall of the second groove 1421. The outer side wall of the valve core 14 has a protrusion that moves along the inner periphery of the first groove 127.

[0051] like Figure 1 and Figure 2 As shown, the valve assembly 10 provided in this application embodiment also includes a valve seat 16. The valve seat 16 has a valve chamber 01, an inlet channel 02 communicating with a second opening, and an outlet channel 03. The valve chamber 01 connects the inlet channel 02 and the outlet channel 03, and the valve chamber 01 is provided with an installation port 04. At least a portion of the sealing member 12 and at least a portion of the valve core seat 11 are installed in the valve chamber 01.

[0052] When the valve assembly 10 opens the valve port through the valve core 14 to connect the inlet channel 02 and the outlet channel 03, the fluid flows as follows: Figure 3 The direction of the middle arrow is positive. Specifically, the fluid pushes the head 141 of the valve core 14 to open the valve port through the inlet channel 02, causing the valve core 14 to move in direction a1. At this time, the valve core 14 compresses the elastic element 15, the valve port opens, the fluid enters the valve chamber 01 and flows out through the outlet channel 03.

[0053] Understandably, valve assembly 10 can only allow fluid flowing in from the inlet channel 02. When fluid flows in the reverse direction from the outlet channel 03, fluid cannot flow from the valve port to the inlet channel 02.

[0054] In one embodiment, such as Figure 3 As shown, in the valve assembly 10 provided in this embodiment, the valve seat 16 forms a valve chamber 01 with a limiting protrusion 161 and a groove 162 on its side wall. The groove 162 and the limiting protrusion 161 are arranged along a first direction a. The valve core seat 11 in the valve assembly 10 abuts against the limiting protrusion 161 at one end away from the sealing member 12 to limit the position of the valve core seat 11 relative to the valve seat 16 in the first direction a. The valve assembly 10 provided in this embodiment also includes a retaining ring 13, at least a portion of which is installed in the groove 162. The retaining ring 13 is fixed in position relative to the valve seat 16.

[0055] It is understood that in the embodiments of this application, the retaining ring 13 assembled in the groove 162 of the limiting protrusion 161 cooperates to limit the valve core seat 11 and the sealing member 12 along the first direction a.

[0056] When the fluid flows in reverse and the valve port is blocked, the fluid cannot flow out of the valve port, and fluid force is applied to the valve core seat 11 and the sealing element 12. As an example, such as... Figure 3 As shown, the fluid may exert forces on the sealing member 12 and the valve core seat 11 along directions a1 and a2 respectively in the first direction a. Because the valve core seat 16 has a limiting protrusion 161, it cannot move along direction a2. Whether the sealing member 12 will move away from the valve core seat 11 along direction a1 depends on the second gap d2. If the second gap d2 is equal to 0, the sealing member 12 cannot move along direction a1; if the second gap d2 is greater than 0, the sealing member 12 will move along direction a1 until it contacts the retaining ring 13.

[0057] It is worth noting that, by adjusting the size relationship between the second interval d2 and the first interval d1, the amount of movement of the sealing member 12 in the first direction a can be limited, preventing the second protrusion 121 from moving to the side of the first protrusion 111 away from the second opening, so as to ensure the integrity of the valve core seat 11 and the sealing member 12. This can further facilitate the customer to disassemble and assemble the valve assembly 10 as a whole structure. At the same time, it can not only further reduce the difficulty of disassembly, but also better ensure secondary use, thereby improving the customer's user experience and ensuring product performance.

[0058] When setting the first protrusion 111, it is necessary to ensure that the first protrusion 111 corresponds at least partially to the second protrusion 121 in the first direction a. Accordingly, the first protrusion 111 can be disposed around the side wall of the valve core seat 11 to ensure that the first protrusion 111 can be interference-fitted with the sealing member 12 in multiple positions, and to ensure that the first protrusion 111 can limit the second protrusion 121 in the first direction a in multiple positions. It can be understood that the first protrusion 111 forms a similar continuous loop structure at this time.

[0059] Of course, the first protrusion 111 can also form an interrupted ring structure, or the first protrusion 111 can be provided only at a portion of the side wall of the valve core seat 11 in the circumferential direction.

[0060] Similarly, when setting the second protrusion 121, it is necessary to ensure that at least a portion of the first protrusion 111 and the second protrusion 121 correspond in the first direction a. Accordingly, the second protrusion 121 can be arranged around the side wall of the sealing member 12 to ensure that the second protrusion 121 can be interference-fitted with the valve core seat 11 in multiple positions. It is understood that the second protrusion 121 forms a continuous loop structure at this time.

[0061] Of course, the second protrusion 121 can also form an interrupted ring structure, or the second protrusion 121 can be provided only at a portion of the side wall of the sealing member 12 in the circumferential direction.

[0062] It is worth noting that when setting the first protrusion 111 and the second protrusion 121, different configurations of the first protrusion 111 and the second protrusion 121 can be combined according to the requirements, which will not be elaborated further.

[0063] When manufacturing the valve core seat 11 and the sealing element 12, both can be made of plastic to reduce the weight of the valve assembly 10 and to lower its manufacturing cost. As an example, the valve core seat 11 and the sealing element 12 can be manufactured by injection molding.

[0064] Please combine Figure 7 refer to Figure 3 The structure shown includes a sealing member 12 comprising a first connecting section 123 extending into the valve core seat 11; a first protrusion 111 located on the inner sidewall of the valve core seat 11; and / or, a second protrusion 121 located on the outer sidewall of the first connecting section 123.

[0065] Please combine Figure 7 refer to Figure 3As shown in the structure, the sealing member 12 also includes a second connecting section 124 spaced apart from the first connecting section 123. A portion of the valve core seat 11 is located between the first connecting section 123 and the second connecting section 124 to increase the connection position between the two and improve the stability of the connection relationship between the valve core seat 11 and the sealing member 12.

[0066] An O-ring for sealing can be provided between the second connecting section 124 and the valve seat 16, which will not be described in detail here.

[0067] Please combine Figure 7 refer to Figure 3 The structure shown includes a third connecting segment 125 spaced apart from the first connecting segment 123. This third connecting segment 125 is located on the side of the first connecting segment 123 facing away from the second connecting segment 124, thus reducing the inner diameter of the sealing member 12. A reinforcing rib 126 is provided between the third connecting segment 125 and the first connecting segment 123 to enhance the strength of both segments.

[0068] Please combine Figure 7 refer to Figure 3 The structure shown has a first groove 127, in which at least a portion of the valve core 14 is located and moves along the inner wall of the first groove 127, and a third connecting section 125 forms part of the wall of the first groove 127. This third connecting section 125 is used to form the first groove 127 to guide the movement of the valve core 14.

[0069] like Figure 5 and Figure 6 As shown, in one embodiment, the first protrusion 111 has one or more first notches 112 arranged along a first direction, and the first protrusions 111 on both sides of the first notches 112 are spaced apart. It should be noted that the first notches 112 facilitate the deformation of the valve core seat 11, so as to demold and assemble, which can reduce manufacturing costs, reduce assembly difficulty, and improve assembly efficiency.

[0070] Understandably, the number of the first notches 112 can be set according to requirements. In a specific case, there are two first notches 112, and the two first notches 112 are set opposite each other to distribute the deformation force evenly, further reduce the difficulty of material deformation, and optimize demolding and assembly.

[0071] like Figure 7 and Figure 8As shown, in one embodiment, the second protrusion 121 has one or more second notches 122 disposed along the first direction, and the second protrusions 121 on both sides of the second notch 122 are spaced apart. It should be noted that the second notch 122 facilitates the deformation of the sealing member 12, so as to facilitate demolding and assembly, which can reduce manufacturing costs, reduce assembly difficulty, and improve assembly efficiency.

[0072] It is understood that the number of the second notch 122 can be set according to requirements. In a specific embodiment, there are two second notches 122, and the two second notches 122 are arranged opposite each other to distribute the deformation force evenly, further reduce the difficulty of material deformation, and optimize demolding and assembly.

[0073] Please continue to refer to this. Figure 2 In one embodiment of the structure shown, the retaining ring 13 has an interruption in the circumferential direction so that the retaining ring 13 can be assembled into the groove 162 of the valve body seat, reducing the assembly difficulty.

[0074] Finally, it should be noted that the various embodiments / implementations provided by this utility model can be combined with each other without creating contradictions, and will not be described in detail here.

[0075] In the embodiments of the utility model, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "install," "connect," "join," and "fix" should be interpreted broadly. For example, "connect" can be a fixed connection, a detachable connection, or an integral connection; "join" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the utility model according to the specific circumstances.

[0076] In the description of the utility model embodiments, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the utility model embodiments and simplifying the description, and do not indicate or imply that the device or unit referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model embodiments.

[0077] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0078] The above are merely preferred embodiments of the utility model and are not intended to limit the utility model. For those skilled in the art, various modifications and variations can be made to the utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the utility model should be included within the protection scope of the utility model.

Claims

1. A valve assembly, characterized in that, include: A valve core seat (11) and a sealing member (12) are provided, wherein the valve core seat (11) is provided with a first opening and a second opening arranged along a first direction, and the sealing member (12) blocks the first opening; A connection structure is provided between the valve core seat (11) and the sealing member (12). The connection structure includes a first protrusion (111) and a second protrusion (121). The first protrusion (111) is disposed on the side wall of the valve core seat (11), and the first protrusion (111) and the sealing member (12) are in an interference fit with the side wall of the first protrusion (111). The second protrusion (121) is disposed on the side wall of the sealing member (12), and the second protrusion (121) and the valve core seat (11) are in an interference fit with the side wall of the second protrusion (121). Along the first direction, the second protrusion (121) is located between the first protrusion (111) and the second opening, and the second protrusion (121) and the first protrusion (111) are in a limiting fit.

2. The valve assembly according to claim 1, characterized in that, The second protrusion (121) and at least a portion of the first protrusion (111) are disposed opposite each other in the first direction, and the second protrusion (121) and the first protrusion (111) have a first gap greater than or equal to 0 mm in the first direction; The valve assembly further includes a retaining ring (13), which is positioned along the first direction on the side of the plugging member (12) away from the valve core seat (11) to limit the relative position of the plugging member (12) in the first direction; the retaining ring (13) and the plugging member (12) have a second gap of 0 mm in the first direction; the second gap is less than or equal to the first gap.

3. The valve assembly according to claim 1, characterized in that, The second protrusion (121) and at least a portion of the first protrusion (111) are disposed opposite each other in the first direction, and the second protrusion (121) and the first protrusion (111) have a first gap greater than 0 mm in the first direction; The valve assembly further includes a retaining ring (13), which is positioned along the first direction on the side of the plugging member (12) away from the valve core seat (11) to limit the relative position of the plugging member (12) in the first direction; the retaining ring (13) and the plugging member (12) have a second gap greater than 0 mm in the first direction; the second gap is less than or equal to the first gap.

4. The valve assembly according to any one of claims 1 to 3, characterized in that, The sealing element (12) includes a first connecting section (123) extending into the valve core seat (11); The first protrusion (111) is located on the inner sidewall of the valve core seat (11); And / or, the second protrusion (121) is located on the outer side wall of the first connecting segment (123).

5. The valve assembly according to claim 4, characterized in that, The sealing component (12) further includes a second connecting section (124) spaced apart from the first connecting section (123), and part of the valve core seat (11) is located between the first connecting section (123) and the second connecting section (124).

6. The valve assembly according to claim 4, characterized in that, The sealing component (12) further includes a third connecting segment (125) spaced apart from the first connecting segment (123), and a reinforcing rib (126) is provided between the third connecting segment (125) and the first connecting segment (123).

7. The valve assembly according to claim 6, characterized in that, The sealing element (12) has a first groove (127), and the valve assembly further includes a valve core (14), at least a portion of which is located within the first groove (127) and moves along the inner wall of the first groove (127), and the third connecting segment (125) forms part of the wall of the first groove (127).

8. The valve assembly according to any one of claims 1-3, characterized in that, The first protrusion (111) has one or more first notches (112) arranged along the first direction; the first protrusions (111) on both sides of the first notch (112) are spaced apart.

9. The valve assembly according to any one of claims 1-3, characterized in that, The second protrusion (121) has one or more second notches (122) arranged along the first direction, and the second protrusions (121) on both sides of the second notch (122) are spaced apart.

10. The valve assembly according to any one of claims 1-3, characterized in that, The valve assembly further includes a valve core (14) and an elastic element (15). The valve core (14) is placed within the accommodating space formed by the sealing element (12) and the valve core seat (11). The valve core (14) includes a head (141) and a stem (142). The valve core seat (11) is provided with a valve port. The head (141) is capable of opening or closing the valve port. One end of the stem (142) is fixedly connected to the head (141), and the other end of the stem (142) is slidably connected to the sealing element (12). The elastic element (15) abuts against the sealing element. Between the valve core (14) and the sealing member (12), the elastic member (15) enables the valve core (14) to close the valve port along its axial direction; the valve core (14) is provided with a second groove (1421), and the sealing member (12) is provided with a first groove (127); one end of the elastic member (15) abuts against the bottom wall of the first groove (127), and the other end abuts against the bottom wall of the second groove (1421); the outer side wall of the valve core (14) is provided with a protrusion, and the protrusion moves along the circumferential inner wall of the first groove (127).

11. The valve assembly according to claim 2 or 3, characterized in that, It also includes a valve seat (16), which has a valve chamber (01), an inlet channel (02) communicating with the second opening, and an outlet channel (03). The valve chamber (01) connects the inlet channel (02) and the outlet channel (03), and the valve chamber (01) is provided with an installation port (04). At least a portion of the sealing member (12) and at least a portion of the valve core seat (11) are installed in the valve chamber (01).

12. The valve assembly according to claim 11, characterized in that, The valve seat (16) forms a side wall of the valve chamber (01) with a limiting protrusion (161) and a groove (162), the groove (162) and the limiting protrusion (161) being arranged along a first direction; the valve core seat (11) abuts against the limiting protrusion (161) at one end away from the sealing member (12) to limit the position of the valve core seat (11) relative to the valve seat (16) in the first direction; at least a portion of the retaining ring (13) is installed in the groove (162), the retaining ring (13) being used to limit the position of the sealing member (12) relative to the valve seat (16) in the first direction.

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