Valve element assembly, one-way valve and vehicle

Abstract

The utility model discloses a valve element assembly, a one-way valve and a vehicle, and relates to the technical field of one-way valves, the valve element assembly is used for the one-way valve, and the valve element assembly comprises a valve cover, a valve core, a valve core and a valve core, and the valve cover is used for being connected with a valve body of the one-way valve; the valve element comprises a rod body and a piston part arranged at one end of the rod body, and the other end of the rod body is movably arranged in the containing cavity; the elastic piece is arranged between the rod body and the valve cover; the guide groove is formed in the outer side wall of the rod body and extends in the axial direction of the rod body, and the guide groove penetrates through the rod body; the guide piece penetrates into the guide groove, two ends of the guide piece are connected with the valve cover, and the guide piece is matched with the guide groove to limit autorotation of the valve element. According to the one-way valve, the valve element assembly is improved, the valve element is prevented from rotating in the moving process, and therefore noise generated when the one-way valve is opened and closed is lowered, and abrasion of the one-way valve is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of one-way valves, in particular to a valve core component, a one-way valve and a vehicle. Background Art

[0002] The one-way valve is an indispensable component in the fluid control system. Its main principle is to allow fluid to pass under the action of positive pressure difference, and prevent fluid from flowing back when reverse pressure difference occurs. The one-way valve generally includes a valve seat and a valve core. In this structure, the valve core is easily disturbed by the fluid during movement and rotates, which will increase the friction between the valve core and the valve seat, which will not only generate noise pollution, but also accelerate the wear of the one-way valve, shorten the service life of the one-way valve, and affect the user experience and the operation quality of the equipment. Utility Model Content

[0003] The main purpose of the utility model is to provide a valve core component, a one-way valve and a vehicle, aiming to reduce the noise when the one-way valve is opened and closed and reduce the wear of the one-way valve.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a valve core assembly for a one-way valve, the valve core assembly comprising:

[0005] A valve cover, used to be connected to the valve body of the one-way valve, the valve cover having an accommodating cavity;

[0006] The valve core comprises a rod body and a piston portion arranged at one end of the rod body, and the other end of the rod body is movably arranged in the accommodating cavity;

[0007] An elastic member, disposed between the rod body and the valve cover;

[0008] a guide groove, which is provided on the side wall of the rod body and extends along the axial direction of the rod body, and the guide groove penetrates the rod body along the radial direction of the rod body; and

[0009] A guide member is inserted into the guide groove and connected to the valve cover at both ends. The guide member cooperates with the guide groove to limit the rotation of the valve core.

[0010] In one embodiment, the valve cover is provided with a skirt, the skirt is arranged around the opening of the accommodating cavity, the skirt is provided with a mounting hole, and the guide member is plugged into the mounting hole.

[0011] In one embodiment, the guide member is configured as a spring pin.

[0012] In one embodiment, a fixing groove is provided at one end of the rod body, the elastic member is provided in the accommodating cavity, one end of the elastic member is embedded in the fixing groove, and the other end abuts against the bottom of the accommodating cavity.

[0013] In one embodiment, a hollow cavity is provided at the bottom of the fixing groove, and the hollow cavity extends along the axial direction of the rod body and is communicated with the guide groove.

[0014] In one embodiment, the guide groove and the fixing groove are spaced apart in the axial direction of the rod body.

[0015] In one embodiment, the outer peripheral wall of the piston portion is provided with a tapered surface portion, and the tapered surface portion extends obliquely in a direction away from the rod body.

[0016] In one embodiment, the conical surface portion is provided with a first sealing groove, the first sealing groove extends along the circumference of the piston portion, and the first sealing groove is used for assembling a sealing ring.

[0017] In one embodiment, the guide groove is configured as a waist-shaped hole, and the long axis of the waist-shaped hole extends along the axial direction of the rod body.

[0018] In one embodiment, a second sealing groove extending along the circumference of the valve cover is formed on the outer peripheral wall of the valve cover, and the second sealing groove is used for assembling a sealing ring.

[0019] The utility model also provides a one-way valve, comprising the valve core assembly mentioned above.

[0020] The utility model also provides a vehicle, comprising the one-way valve mentioned above.

[0021] The technical solution of the utility model is to open a guide groove on the rod body, and set a guide member on the valve cover to penetrate into the guide groove and cooperate with the guide groove to limit the position, so that the valve core can only slide along its own axial direction but cannot rotate, thereby reducing the friction of the valve core during movement, thereby preventing the valve core from generating noise during movement, improving the operating quality of the one-way valve, and also helping to reduce the wear of the internal components of the one-way valve and extend the service life of the one-way valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0023] Figure 1 A schematic diagram of the structure of the valve core assembly provided by the utility model;

[0024] Figure 2 A schematic diagram of the structure of a valve cover in a valve core assembly provided by the utility model;

[0025] Figure 3 The utility model is a schematic diagram of the structure of the valve core in the valve core assembly.

[0026] Description of Figure Numbers:

[0027] 100, valve cover; 110, accommodating cavity; 120, skirt; 130, mounting hole; 140, second sealing groove; 200, valve core; 210, rod body; 211, fixing groove; 212, hollow cavity; 220, piston part; 221, conical part; 222, first sealing groove; 300, elastic member; 400, guide groove; 500, guide member.

[0028] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0032] In the current one-way valve structure, the valve core 200 is prone to rotate under the disturbance of the fluid in the valve seat when moving relative to the valve seat, which will increase the friction of the valve core 200 and cause the generation of abnormal friction noise, affecting the operating quality of the one-way valve and user experience. In addition, the wear of the valve core 200 will also be aggravated, affecting the service life of the one-way valve.

[0033] To this end, the technical solution of the utility model proposes a valve core assembly for a one-way valve, the valve core assembly comprising:

[0034] The valve cover 100 is used to be connected to the valve body of the one-way valve, and the valve cover 100 has a receiving cavity 110;

[0035] The valve core 200 includes a rod body 210 and a piston portion 220 disposed at one end of the rod body 210, and the other end of the rod body 210 is movably disposed in the accommodating chamber 110;

[0036] The elastic member 300 is disposed between the rod body 210 and the valve cover 100;

[0037] A guide groove 400 is provided on the side wall of the rod body 210 and extends along the axial direction of the rod body 210 . The guide groove 400 penetrates the rod body 210 along the radial direction of the rod body 210 ; and

[0038] The guide member 500 is inserted into the guide groove 400 and connected to the valve cover 100 at both ends. The guide member 500 cooperates with the guide groove 400 to limit the rotation of the valve core 200.

[0039] The technical solution of the utility model is to open a guide groove 400 on the rod body 210, and set a guide member 500 on the valve cover 100 to penetrate into the guide groove 400 and cooperate with the guide groove 400 to limit the position, so that the valve core 200 can only slide along its own axial direction but cannot rotate, thereby reducing the friction of the valve core 200 during movement, thereby preventing the valve core 200 from generating noise during movement, improving the operating quality of the one-way valve, and also helping to reduce the wear of the internal components of the one-way valve and extend the service life of the one-way valve.

[0040] In one embodiment of the utility model, the valve core assembly is applied to a one-way valve, which can be specifically applied to an air conditioning system, a water heating system or an air conditioning pipeline of a vehicle. The one-way valve includes a valve body and a valve core assembly arranged on the valve body, wherein the valve body has a flow channel for fluid flow inside, specifically including an inlet channel, an outlet channel and a valve port connecting the inlet channel and the outlet channel, and the valve core assembly includes a valve cover 100 and a valve core 200 movably connected to the valve cover 100, the valve cover 100 is fixed to the valve body, the valve cover 100 and the valve core 200 are connected through an elastic member 300, and the elastic member 300 seals the valve core 200 against the valve port. During operation, the fluid enters the inlet channel and applies positive pressure to the valve core 200 at the valve port and pushes the valve core 200 open, at which time the fluid can flow into the outlet channel through the valve port; and when the fluid pressure is reduced to a level insufficient to counteract the elastic force of the elastic member 300, the valve core 200 will close the valve port under the action of the elastic member 300 to interrupt the flow of the fluid.

[0041] The above is a specific application example of the valve core assembly in the one-way valve. The specific structure of the valve core assembly will be described below. Figure 1The valve cover 100 is provided with a receiving chamber 110 with an opening on one side, and the valve core 200 includes a rod body 210 and a piston portion 220 provided at one end of the rod body 210. The piston portion 220 is a portion for blocking the valve port. The end of the rod body 210 away from the piston portion 220 extends from the opening into the receiving chamber 110 and forms a sliding fit relationship with the receiving chamber 110. The rod body 210 can move relative to the valve cover 100 along its own axial direction, thereby driving the piston portion 220 to open or close the valve port. In addition, the rod body 21 An elastic member 300 is arranged between the rod body 210 and the valve cover 100, and the two ends of the elastic member 300 are respectively connected to the rod body 210 and the valve cover 100, and the elastic member 300 applies an elastic force away from the valve cover 100 to the rod body 210, so as to ensure that the piston part 220 can be closely abutted against the valve port; in addition, in order to limit the rotation of the valve core 200 during movement, the valve core assembly also has a guide groove 400 and a guide member 500 that cooperate with each other, wherein the guide groove 400 is arranged on the side wall of the rod body 210 and along the rod body 210 The guide groove 400 extends axially, and penetrates the rod body 210 in the radial direction of the rod body 210. The guide member 500 is a rod-shaped structure. The guide member 500 penetrates into the guide groove 400, and the two ends of the guide member 500 are arranged outside the guide groove 400. The two ends of the guide member 500 are fixed to the valve cover 100. When the rod body 210 moves, the guide member 500 will slide in the guide groove 400, and the sliding direction of the guide member 500 is the moving direction of the rod body 210. In addition, since the guide member 500 passes through the guide groove 400, the guide member 500 is inserted into the guide groove 400. The guide groove 400 forms a limit between the guide member 500 and the guide groove 400, which can limit the rotation of the rod body 210 around its own axis, thereby preventing the valve core 200 from rotating, preventing abnormal noise and reducing the wear of the one-way valve; in addition, in this embodiment, the guide groove 400 does not penetrate the rod body 210 in the radial direction of the rod body 210, so that the rod body 210 can be limited by the guide member 500 to prevent the rod body 210 from falling off the valve cover 100, thereby improving the reliability of the valve core assembly.

[0042] like Figure 1 and Figure 2In one embodiment of the utility model, the valve cover 100 is provided with a skirt 120, which is arranged around the opening of the accommodating chamber 110, and the skirt 120 is provided with a mounting hole 130, and the guide member 500 is plugged into the mounting hole 130; in this embodiment, the skirt 120 extends around the opening of the accommodating chamber 110 to form an annular structure, and a mounting hole 130 is opened on the side wall of the skirt 120, and the mounting hole 130 corresponds to the position of the guide groove 400, and the mounting hole 130 is respectively arranged on the opposite sides of the rod body 210, and the guide member 500 can be inserted into the mounting hole 130 for fixing, so that the assembly of the guide member 500 and the valve cover 100 is convenient, the assembly difficulty of the valve core assembly is reduced, and the processability is improved; in addition, the guide member 500 and the mounting hole 130 can also be removed from the mounting hole 130, which facilitates the later maintenance and replacement of components of the valve core assembly.

[0043] In one embodiment of the utility model, the guide member 500 is configured as a spring pin. By utilizing the self-locking function of the spring pin, the guide member 500 can be fixed in the mounting hole 130 without other fasteners, which not only helps to simplify the structure of the valve core assembly, but also facilitates the disassembly and assembly of the guide member 500, while also reducing the design cost and processing cost of the valve core assembly.

[0044] In order to improve the stability of the valve core 200 during movement, Figure 1 and Figure 3 In one embodiment of the utility model, a fixing groove 211 is provided at one end of the rod body 210 , and the elastic member 300 is disposed in the accommodating cavity 110 , with one end of the elastic member 300 embedded in the fixing groove 211 and the other end abutting against the bottom of the accommodating cavity 110 . Specifically, the elastic member 300 can be arranged in the accommodating chamber 110, so that the structure of the valve core assembly can be more compact and the overall size of the valve core assembly can be further reduced; in addition, the elastic member 300 can be a compression spring, one end of which is abutted against the bottom of the accommodating chamber 110, and the other end is abutted against the end of the rod body 210. When the rod body 210 moves, it can cooperate with the bottom of the compression chamber to compress the elastic member 300; in addition, in order to ensure the stability of the position of the elastic member 300 during compression and thus ensure the stability of the movement of the rod body 210, a fixing groove 211 is also provided at the end of the rod body 210. The size of the fixing groove 211 can be adapted to the size of the elastic member 300. One end of the elastic member 300 can be embedded in the fixing groove 211 and limited by the fixing groove 211, so that the elastic member 300 is not easy to shake during the compression process, and the direction and accuracy of the spring compression are controlled, thereby improving the stability of the rod body 210 during movement and the stability of the piston part 220 when opening and closing the valve port.

[0045] In order to improve the opening performance of the one-way valve, Figure 1 and Figure 3A hollow cavity 212 is provided on the bottom of the fixed groove 211, and the hollow cavity 212 extends toward one side of the piston part 220 and is connected with the guide groove 400. In this way, when the rod body 210 moves, air can enter and exit the accommodating cavity 110 via the fixed groove 211-hollow cavity 212-guide groove 400, so that the air pressure of the accommodating cavity 110 and the outside can be balanced when the valve core 200 moves, and the resistance encountered by the valve core 200 when moving is reduced, thereby improving the smoothness of opening and closing the valve and the opening and closing speed of the valve port of the one-way valve; in this embodiment, the guide groove 400 can not only cooperate with the guide member 500 to prevent the valve core 200 from rotating, but also be used for exhaust, thereby realizing multiple functions while also reducing the structural complexity of the one-way valve.

[0046] In one embodiment of the utility model, the guide groove 400 and the fixed groove 211 are spaced apart in the axial direction of the rod body 210, so that the guide member 500 will not extend into the fixed groove 211 through the guide groove 400, thereby preventing the guide member 500 and the elastic member 300 from interfering with each other and ensuring the operating stability of the one-way valve.

[0047] like Figure 1 In one embodiment of the utility model, the outer peripheral wall of the piston part 220 is provided with a conical surface part 221, and the conical surface part 221 extends obliquely in a direction away from the rod body 210. In this embodiment, a conical surface matching the conical surface part 221 is also provided at the valve port, and the conical surface is in a bell-mouth shape. The conical surface part 221 forms a surface contact with the conical surface, which ensures the sealing effect when the flow is cut off. When opening, the conical surface part 221 moves away from the conical surface along the axial direction of the rod body 210. There is no mutual friction between the two when they are separated, which is conducive to reducing the wear of the valve port and the piston part 220, thereby extending the service life of the one-way valve.

[0048] like Figure 1 and Figure 3 In one embodiment of the utility model, the conical surface portion 221 is provided with a first sealing groove 222, which extends circumferentially along the piston portion 220, and is used to assemble a sealing ring. When the piston portion 220 closes the valve port, the conical surface portion 221 abuts against the conical surface of the valve port, and the sealing ring compresses and fills the gap between the conical surface portion 221 and the valve port to achieve sealing of the valve port. At this time, the conical surface portion 221 and the conical surface of the valve port are also mutually limited, which can prevent the conical surface portion 221 from continuing to enter the valve port and cause the sealing ring to continue to be compressed. In this way, it can be ensured that the deformation of the sealing ring is not too large each time the valve port is opened and closed, thereby alleviating the fatigue damage of the sealing ring caused by overpressure, which is conducive to extending the service life of the one-way valve.

[0049] In one embodiment of the present invention, the guide groove 400 is configured as a waist-shaped hole, and the long axis of the waist-shaped hole extends along the axial direction of the rod body 210. The use of the waist-shaped hole not only facilitates the processing of the guide groove 400, but also the rounded corner design of the waist-shaped hole can disperse stress and reduce stress concentration at the edge of the hole, which can ensure the fatigue strength and life of the rod body 210.

[0050] like Figure 1 and Figure 2 In one embodiment of the utility model, the outer peripheral wall of the valve cover 100 is provided with a second sealing groove 140 extending along the circumference of the valve cover 100. The second sealing groove 140 is used to assemble a sealing ring. By arranging a sealing ring in the second sealing groove 140, the sealing performance between the valve cover 100 and the valve body can be improved when the valve cover 100 is assembled to the valve body, thereby ensuring the overall sealing performance of the one-way valve.

[0051] The utility model also proposes a one-way valve, which includes a valve body and a valve core 200 arranged on the valve body, wherein the interior of the valve body has a flow channel for fluid flow, specifically including an inlet channel, an outlet channel and a valve port connecting the inlet channel and the outlet channel, and the valve core assembly is connected to the valve body and is used to open and close the valve port. The specific structure of the valve core assembly refers to the above-mentioned embodiment. Since the one-way valve adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here one by one.

[0052] The utility model also proposes a vehicle, which has an air-conditioning system. A one-way valve is provided on the pipeline of the air-conditioning system to make the pipeline unidirectional. The specific structure of the one-way valve refers to the above-mentioned embodiment. Since the vehicle adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here.

[0053] The above are only exemplary embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A valve core assembly for a one-way valve, characterized in that: The valve core assembly comprises: A valve cover, used to be connected to the valve body of the one-way valve, the valve cover having an accommodating cavity; The valve core comprises a rod body and a piston portion arranged at one end of the rod body, and the other end of the rod body is movably arranged in the accommodating cavity; An elastic member, disposed between the rod body and the valve cover; a guide groove, which is provided on the side wall of the rod body and extends along the axial direction of the rod body, and the guide groove penetrates the rod body along the radial direction of the rod body; and A guide member is inserted into the guide groove and connected to the valve cover at both ends. The guide member cooperates with the guide groove to limit the rotation of the valve core.

2. The valve core assembly according to claim 1, characterized in that: The valve cover is provided with a skirt, the skirt is arranged around the opening of the accommodating cavity, the skirt is provided with a mounting hole, and the guide piece is plugged into the mounting hole.

3. The valve core assembly according to claim 2, characterized in that: The guide member is configured as a spring pin.

4. The valve core assembly according to claim 1, characterized in that: A fixing groove is arranged at one end of the rod body, the elastic member is arranged in the accommodating cavity, one end of the elastic member is embedded in the fixing groove, and the other end abuts against the cavity bottom of the accommodating cavity.

5. The valve core assembly according to claim 4, characterized in that: A hollow cavity is provided at the bottom of the fixing groove, and the hollow cavity extends along the axial direction of the rod body and is communicated with the guide groove.

6. The valve core assembly according to claim 4 or 5, characterized in that: The guide groove and the fixing groove are arranged at intervals in the axial direction of the rod body.

7. The valve core assembly according to claim 1, characterized in that: The outer peripheral wall of the piston part is provided with a conical surface part, and the conical surface part extends obliquely in a direction away from the rod body.

8. The valve core assembly according to claim 7, characterized in that: The conical surface portion is provided with a first sealing groove, the first sealing groove extends along the circumference of the piston portion, and the first sealing groove is used for assembling a sealing ring.

9. The valve core assembly according to claim 1, characterized in that: The guide groove is configured as a waist-shaped hole, and the long axis of the waist-shaped hole extends along the axial direction of the rod body.

10. The valve core assembly according to claim 1, characterized in that: The outer peripheral wall of the valve cover is provided with a second sealing groove extending along the circumference of the valve cover, and the second sealing groove is used for assembling a sealing ring.

11. A one-way valve, characterized in that: A valve core assembly comprising any one of claims 1 to 10.

12. A vehicle, characterized in that: Includes the one-way valve as claimed in claim 11.

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