One-way valve

Abstract

The one-way valve comprises a shell and a valve element, the shell comprises a shell side wall formed by extending in the first direction and a containing cavity defined by the shell side wall, a liquid inlet is formed in one end of the shell in the first direction, a liquid outlet is formed in the other end of the shell in the first direction, and the liquid inlet and the liquid outlet are both communicated with the containing cavity. The inner side of the shell side wall is provided with an abutting protrusion protruding towards the interior of the containing cavity in the circumferential direction of the shell side wall, and the valve element is arranged in the containing cavity and can move towards the liquid outlet or the liquid inlet in the first direction so that the valve element can be separated from or abut against the abutting protrusion and be connected with the abutting protrusion in a sealed mode. The one-way valve solves the problem that a one-way valve in the prior art cannot achieve linear flow guiding.

Description

Technical Field

[0001] The utility model relates to the field of automobile manufacturing, in particular to a one-way valve. Background Art

[0002] In the automotive industry, check valves, as key fluid control components, are widely used in various hydraulic and fuel systems to ensure fluid flow control and efficient delivery. However, existing check valve designs are often restricted by specific installation environments and user requirements, resulting in numerous inconveniences and limitations in their application.

[0003] Specifically, most of the one-way valves currently on the market are designed to be installed in user-specified mounting grooves. Although this design meets some customization needs, it also brings challenges in installation flexibility and adaptability. More importantly, the inlet and outlet of these one-way valves are usually set to intersect at a 90-degree angle. This layout may not be ideal in certain specific application scenarios. For example, in the cooling system or fuel supply system of a car engine, if linear circulation of the liquid can be achieved, the flow efficiency of the fluid and the overall performance of the system will be greatly improved. However, the 90-degree angle design of existing one-way valves often causes unnecessary turning and resistance of the fluid when flowing through the valve, which not only increases energy consumption, but may also cause instability in the fluid pressure, affecting the stability and reliability of the entire system. In addition, this 90-degree angle design also limits the application of one-way valves in specific spatial layouts, especially in car engine compartments where space is compact and there are strict requirements on the fluid path.

[0004] Therefore, there is an urgent need for a new one-way valve design that can overcome the above-mentioned defects and realize that the liquid inlet and outlet are located in a straight line, thereby realizing linear flow of liquid, so as to meet the growing fluid control needs in the automotive field and improve the overall performance and reliability of the system. Utility Model Content

[0005] The purpose of the utility model is to provide a one-way valve to solve the problem that the one-way valve in the prior art cannot achieve linear flow guidance.

[0006] In order to achieve the above-mentioned purpose of the utility model, one embodiment of the utility model provides a one-way valve, which includes a shell and a valve core, the shell includes a shell side wall extending along a first direction and a accommodating cavity surrounded by the shell side wall, the shell is provided with a liquid inlet at one end in the first direction and a liquid outlet at the other end, the liquid inlet and the liquid outlet are both connected to the accommodating cavity, the inner side of the shell side wall is provided with an abutment protrusion protruding toward the accommodating cavity along its circumference, the valve core is provided in the accommodating cavity and can move along the first direction toward the liquid outlet or the liquid inlet, so that the valve core and the abutment protrusion are separated or abutted and sealed.

[0007] As a further improvement of an embodiment of the present invention, the one-way valve further includes an elastic member, which is disposed in the accommodating cavity and is at least used to abut the valve core against the abutting protrusion to seal the two.

[0008] As a further improvement of an embodiment of the present invention, the one-way valve includes a mounting member arranged in the accommodating cavity, the mounting member is clamped on the inner side of the shell side wall near the liquid outlet and has a fixed portion protruding toward the liquid inlet, a flow channel is provided on the mounting member along a first direction, the valve core is sleeved on the fixed portion, and in the first direction, the elastic member is connected between the valve core and the fixed portion.

[0009] As a further improvement of an embodiment of the present invention, the valve core has a first end facing the fixed part, a first groove is provided on the first end, a mounting column is provided on the bottom wall of the first groove, the groove side wall of the first groove is sleeved on the fixed part and can slide relative to the fixed part, the elastic part is sleeved on the mounting column and one end of it is connected to the bottom wall of the first groove, and the other end is connected to the fixed part.

[0010] As a further improvement of an embodiment of the present invention, a second groove is provided on one end of the fixing portion facing the bottom wall of the first groove, and the other end of the elastic member is connected to the bottom wall of the second groove.

[0011] As a further improvement of an embodiment of the present invention, the valve core includes a valve core body extending along a first direction, the valve core body facing one end of the fixed portion forms the first end of the valve core, and the valve core has a second end located on the valve core body relative to the first end, and the end face of the second end is set to be an arc-shaped surface protruding toward the liquid inlet.

[0012] As a further improvement of an embodiment of the present invention, the valve core also includes a first sealing member, which is sleeved on the side wall of the valve core body. When the valve core abuts and seals the abutment protrusion, the valve core body abuts the abutment protrusion and the first sealing member abuts against the valve core body and the abutment protrusion respectively to seal the two.

[0013] As a further improvement of an embodiment of the present invention, a clamping groove is provided on the side wall of the valve core body, the clamping groove forms an annular structure along the circumference of the valve core body, and the first sealing member is sleeved in the clamping groove.

[0014] As a further improvement of an embodiment of the present invention, a second sealing member is sleeved on the outer side of the shell side wall near the liquid outlet.

[0015] As a further improvement of an embodiment of the present invention, it also includes an assembly part arranged on the side wall of the shell, the assembly part and the shell are arranged in sequence in the second direction, the second direction is perpendicular to the first direction, the assembly part is extended along the first direction, and a stepped hole is provided through the assembly part along the first direction, the hole wall of the stepped hole has a large diameter section close to the liquid inlet and a small diameter section close to the liquid outlet, and the large diameter section and the small diameter section are connected by a connecting surface.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] The two ends of the housing are provided with a liquid inlet and a liquid outlet respectively in the first direction. The valve core moves in the accommodating cavity along the first direction toward the liquid inlet or toward the liquid outlet to control the closing of the one-way valve or realize linear delivery of liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a one-way valve in one embodiment of the present utility model;

[0019] Figure 2 for Figure 1 Left view of;

[0020] Figure 3 for Figure 2 Cross-section in the MM direction.

[0021] The above description of the drawings includes the following reference numerals:

[0022] 1. Shell;

[0023] 11. Shell side wall;

[0024] 111, abutting protrusion;

[0025] 112. Second sealing member;

[0026] 12. Accommodating cavity;

[0027] 13. Liquid inlet;

[0028] 14. Liquid outlet;

[0029] 2. Valve core;

[0030] 21. Valve core body;

[0031] 211, first end;

[0032] 2111, first groove;

[0033] 2112, installation column;

[0034] 212, second end;

[0035] 213, snap-fit ​​groove;

[0036] 22. First sealing member;

[0037] 3. Elastic parts;

[0038] 4. Mounting parts;

[0039] 41. Fixed part;

[0040] 411, second groove;

[0041] 5. Assembly parts;

[0042] 51. Step hole;

[0043] 511. Large diameter section;

[0044] 512, trail section;

[0045] 513, connection surface;

[0046] A1, first direction;

[0047] A2, the second direction. DETAILED DESCRIPTION

[0048] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0049] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0050] In the present invention, unless otherwise specified, directional words such as "up, down, top, bottom" are usually used with reference to the directions shown in the drawings, or with reference to the components themselves in the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0051] In order to solve the problem that the one-way valve in the prior art cannot achieve linear flow guidance, the utility model provides a new one-way valve.

[0052] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0053] like Figure 1-3As shown, the utility model provides a one-way valve, which includes a shell 1 and a valve core 2. The shell 1 includes a shell side wall 11 extending along a first direction and an accommodating cavity 12 surrounded by the shell side wall 11. The shell 1 is provided with a liquid inlet 13 at one end in the first direction and a liquid outlet 14 at the other end. The liquid inlet 13 and the liquid outlet 14 are both connected to the accommodating cavity 12. The inner side of the shell side wall 11 is provided with an abutment protrusion 111 protruding toward the accommodating cavity 12 along its circumference. The valve core 2 is arranged in the accommodating cavity 12 and can move along the first direction toward the liquid outlet 14 or the liquid inlet 13, so that the valve core 2 and the abutment protrusion 111 are separated or abutted and sealed.

[0054] It should be noted that the abutment protrusion 111 is an annular structure formed on the inner side of the shell sidewall 11 along the circumference of the shell sidewall 11. As can be understood, when the valve core 2 moves in the first direction toward the liquid outlet 14, the valve core 2 separates from the abutment protrusion 111, thereby connecting the flow channel within the accommodating chamber 12 and opening the one-way valve. When the valve core 2 moves in the first direction toward the liquid inlet 13, the valve core 2 abuts and seals against the abutment protrusion 111, thereby closing the one-way valve.

[0055] Combined with Figure 1 As shown in , the first direction is also the direction indicated by A1 in the figure.

[0056] By the above arrangement, a liquid inlet 13 and a liquid outlet 14 are provided at both ends of the shell 1 in the first direction, and the valve core 2 moves toward the liquid inlet 13 or the liquid outlet 14 in the first direction, thereby controlling the one-way valve to close or transport liquid in a straight direction.

[0057] Then turn Figure 3 As shown, the one-way valve further includes an elastic member 3, which is cleverly placed in the accommodating cavity 12 and mainly serves to press the valve core 2 against the abutting protrusion 111, thereby ensuring that the valve core 2 and the abutting protrusion 111 can be tightly and reliably sealed and connected, effectively preventing liquid leakage.

[0058] Specifically, when no liquid flows into the liquid inlet 13 or the pressure exerted by the flowing liquid on the valve core 2 is less than the elastic pressure exerted by the elastic member 3 on the valve core 2, the elastic member 3 can press the valve core 2 against the abutting protrusion 111, thereby sealing the two.

[0059] It can be understood that when the pressure exerted by the liquid flowing into the liquid inlet 13 on the valve core 2 is greater than the elastic pressure exerted by the elastic member 3 on the valve core 2, the valve core 2 is pushed to disengage from the abutment protrusion 111 and move toward the liquid outlet 14, thereby opening the one-way valve.

[0060] Furthermore, the one-way valve is cleverly designed with a mounting member 4, which is securely attached to the inner side of the housing sidewall 11 and positioned near the liquid outlet 14. The mounting member 4 has a fixing portion 41 that protrudes toward the liquid inlet 13. This design not only enhances the stability of the mounting member 4 within the accommodating cavity 12, but also provides precise positioning and support for the valve core 2.

[0061] Furthermore, a flow channel is provided through the mounting member 4 along the first direction, communicating with the liquid inlet 13 and the liquid outlet 14, ensuring smooth liquid flow. The valve core 2 is carefully sheathed on the fixing portion 41. This design ensures that the valve core 2 remains stable during movement and facilitates precise sealing connection and separation with the abutment protrusion 111.

[0062] The elastic member 3 is cleverly positioned between the valve core 2 and the fixed portion 41. One end of the elastic member 3 is connected to the valve core 2, and the other end is connected to the fixed portion 41. This arrangement not only secures the valve core 2 against the abutment protrusion 111 but also provides the necessary elastic support and cushioning when the valve core 2 moves.

[0063] With this design, when the pressure exerted on the valve core 2 by the liquid flowing into the liquid inlet 13 changes, the elastic member 3 can flexibly adjust the position of the valve core 2, thereby achieving precise control of the one-way valve. At the same time, the design of the mounting member 4 and the flow channel thereon further optimizes the liquid flow path, improving the operating efficiency and performance of the one-way valve.

[0064] Furthermore, the first end 211 of the valve core 2 defines a first groove 2111 in the direction toward the fixing portion 41. Not only does the shape of this first groove 2111 match that of the fixing portion 41, but its sidewalls also fit snugly around the fixing portion 41, achieving a stable connection between the two. Furthermore, a mounting post 2112 is specifically provided on the bottom wall of the first groove 2111, providing a stable support point for the elastic member 3.

[0065] The elastic member 3 is meticulously fitted onto the mounting post 2112, with one end firmly attached to the bottom wall of the first groove 2111 and the other end securely connected to the fixing portion 41. This structural design not only ensures the stable function of the elastic member 3, providing the necessary elastic support and cushioning for the valve core 2, but also enables the valve core 2 to slide flexibly relative to the fixing portion 41, thereby achieving precise control of the one-way valve. The entire design balances mechanical stability with operational flexibility, fully demonstrating the ingenious concept and practical value of this utility model.

[0066] Furthermore, a second groove 411 is specifically defined on one end of the fixing portion 41, facing the bottom wall of the first groove 2111. This design not only enhances the structural strength of the fixing portion 41 but also provides another secure connection point for the elastic member 3. The other end of the elastic member 3 is cleverly secured to the bottom wall of the second groove 411. This connection is both simple and reliable, ensuring that the elastic member 3 can stably transmit force, allowing the valve core 2 to quickly and accurately achieve a sealed connection or separation with the abutting protrusion 111 when needed. The entire design is compact and rational, fully demonstrating the practicality and innovation of this utility model.

[0067] Furthermore, the main body of the valve core 2 is composed of a valve core body 21 extending in the first direction A1. This design ensures that the valve core 2 can stably move in the first direction within the accommodating cavity 12. The end of the valve core body 21 facing the fixed portion 41 is carefully machined to form a first end 211 of the valve core 2. This end closely cooperates with the fixed portion 41 and the elastic member 3, enabling flexible movement of the valve core 2.

[0068] The other end of the valve core 2, namely the second end 212, is positioned on the valve core body 21 relative to the first end 211. The end surface of the second end 212 is specially designed as an arc-shaped surface that protrudes toward the liquid inlet 13. This design not only enhances the valve core 2's ability to guide the incoming liquid but also enables the valve core 2 to more evenly distribute pressure when subjected to liquid pressure, thereby improving the one-way valve's response speed and sealing performance. The design of the entire valve core 2 takes into account both structural stability and functional practicality, fully demonstrating the ingenious conception and exquisite craftsmanship of this utility model.

[0069] Furthermore, the valve core 2 ingeniously includes a first sealing member 22, meticulously fitted onto the sidewall of the valve core body 21. This first sealing member 22 plays a crucial role when the valve core 2 abuts the abutment protrusion 111, forming a sealed connection. The valve core body 21 and the abutment protrusion 111 are in close contact, while the first sealing member 22 abuts against both the valve core body 21 and the abutment protrusion 111, effectively sealing the gap between them.

[0070] This design not only enhances the sealing performance of the one-way valve, but also allows the valve core 2 to maintain a more stable state during movement. The selection and installation of the first sealing member 22 have been strictly considered to ensure that it can achieve the best sealing effect under various working conditions, providing a strong guarantee for the reliable operation of the one-way valve.

[0071] Furthermore, a special engaging groove 213 is formed on the side wall of the valve core body 21. This groove forms a stable annular structure along the circumference of the valve core body 21. The first sealing member 22 is precisely fitted into this engaging groove 213. This design not only ensures the stable installation of the first sealing member 22, but also enhances the sealing effect between it and the valve core body 21.

[0072] Furthermore, a second seal 112 is specifically positioned on the outer side of the housing sidewall 11, near the liquid outlet 14. This design takes into account the sealing requirements between the one-way valve and the connecting pipeline. When the housing sidewall 11 and the connecting pipeline are tightly connected, the second seal 112 plays a crucial role, effectively preventing liquid leakage from the connection, thereby ensuring the sealing and stability of the entire fluid transmission system.

[0073] It should be noted that if Figure 2 As shown in the figure, A2 shows the second direction, and the second direction A2 is perpendicular to the first direction A1.

[0074] Furthermore, the one-way valve design cleverly incorporates an assembly member 5, which is meticulously positioned on the housing sidewall 11 and aligned with the housing 1 in the second direction A2. The assembly member 5 also extends in the first direction, ensuring overall coordination with the housing 1.

[0075] Furthermore, the assembly 5 is provided with a stepped hole 51 extending along the first direction A1, extending through the assembly 5. The wall of this stepped hole 51 is ingeniously designed, comprising a large-diameter section 511 near the liquid inlet 13 and a small-diameter section 512 near the liquid outlet 14. A smooth connecting surface 513 creates a seamless transition between the large-diameter section 511 and the small-diameter section 512. This design not only enhances the structural strength of the assembly 5 but also provides diverse installation options for other components connected to the one-way valve, further improving the stability of the one-way valve during installation.

[0076] In summary, the embodiments of the present invention achieve the following technical effects:

[0077] The housing 1 has a liquid inlet 13 and a liquid outlet 14 at both ends in the first direction. The valve core 2 moves toward the liquid inlet 13 or toward the liquid outlet 14 in the first direction A1 within the accommodating cavity 12 to control the closing of the one-way valve or realize linear liquid delivery.

[0078] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0079] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0080] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0081] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A one-way valve, characterized in that: The invention comprises a shell and a valve core, wherein the shell comprises a shell side wall extending along a first direction and a accommodating cavity surrounded by the shell side wall, a liquid inlet is provided on one end of the shell in the first direction, and a liquid outlet is provided on the other end, the liquid inlet and the liquid outlet are both connected with the accommodating cavity, and an abutting protrusion protruding toward the accommodating cavity is provided on the inner side of the shell side wall along its circumference, the valve core is arranged in the accommodating cavity and can move along the first direction toward the liquid outlet or the liquid inlet, so that the valve core and the abutting protrusion are separated or abutted and sealed.

2. The one-way valve according to claim 1, characterized in that: The one-way valve further comprises an elastic member, which is disposed in the accommodating cavity and is at least used to abut the valve core against the abutting protrusion to achieve a sealing connection between the two.

3. The one-way valve according to claim 2, characterized in that: The one-way valve includes a mounting member arranged in the accommodating cavity, the mounting member is clamped on the inner side of the shell side wall near the liquid outlet and has a fixed portion protruding toward the liquid inlet, a flow channel is provided through the mounting member along a first direction, the valve core is sleeved on the fixed portion, and in the first direction, the elastic member is connected between the valve core and the fixed portion.

4. The one-way valve according to claim 3, characterized in that: The valve core has a first end facing the fixed part, a first groove is provided on the first end, a mounting post is provided on the bottom wall of the first groove, the side walls of the first groove are sleeved on the fixed part and can slide relative to the fixed part, the elastic member is sleeved on the mounting post and one end of the elastic member is connected to the bottom wall of the first groove, and the other end is connected to the fixed part.

5. The one-way valve according to claim 4, characterized in that: A second groove is provided on one end of the fixing portion facing the groove bottom wall of the first groove, and the other end of the elastic member is connected to the groove bottom wall of the second groove.

6. The one-way valve according to claim 5, characterized in that: The valve core includes a valve core body extending along a first direction, and one end of the valve core body toward the fixed portion forms a first end of the valve core. The valve core has a second end located on the valve core body and arranged relative to the first end. The end face of the second end is arranged to be an arc-shaped surface protruding toward the liquid inlet.

7. The one-way valve according to claim 6, characterized in that: The valve core also includes a first sealing member, which is sleeved on the side wall of the valve core body. When the valve core abuts and seals the abutment protrusion, the valve core body abuts the abutment protrusion and the first sealing member abuts the valve core body and the abutment protrusion respectively to seal both.

8. The one-way valve according to claim 7, characterized in that: A clamping groove is provided on the side wall of the valve core body. The clamping groove forms an annular structure along the circumference of the valve core body. The first sealing member is sleeved in the clamping groove.

9. The one-way valve according to claim 1, characterized in that: A second sealing member is sleeved on the outer side of the shell side wall near the liquid outlet.

10. The one-way valve according to claim 1, wherein: It also includes an assembly part arranged on the side wall of the shell, the assembly part and the shell are arranged in sequence in the second direction, the second direction is perpendicular to the first direction, the assembly part is extended along the first direction, and a stepped hole is penetrated through the assembly part along the first direction, the hole wall of the stepped hole has a large diameter section near the liquid inlet and a small diameter section near the liquid outlet, and the large diameter section and the small diameter section are connected by a connecting surface.

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