One-way valve and automobile

Abstract

The invention relates to a one-way valve which comprises a valve body and a valve plate embedded in the valve body. A flow channel is arranged in the valve body, a fluid outlet is formed in the lower portion of the valve body, a fluid inlet is formed in the valve plate, the flow channel is arranged between the fluid inlet and the fluid outlet, and the fluid inlet is communicated with the flow channel. The valve body generates elastic deformation under the action of pressure difference, so that the flow channel communicates with the fluid outlet, and fluid in a high-pressure area sequentially passes through the fluid inlet, the flow channel and the fluid outlet to be guided out to a low-pressure area. The one-way valve structure has the beneficial effects that through the structural design of the valve body and the valve plate, efficient one-way conduction is achieved, reverse flow can be effectively prevented, and the pressure stability in the whole structure is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical engineering, in particular to a one-way valve and a car. Background Art

[0002] Existing one-way valves are generally mechanical structures, such as ball valve one-way valves and cone valve one-way valves. Ball valve one-way valves are mainly composed of valve body, ball valve core and spring. When working, fluid pressure pushes the ball valve core to overcome the spring force to move and realize forward conduction; when in reverse, the spring presses the ball valve core back to the valve seat to prevent fluid reflux. Its advantages are easy manufacturing and low cost; its disadvantages are that the valve core has no guidance and relatively poor sealing, and is generally less used in key pneumatic parts of automobile chassis and suspension; the valve core of the cone valve one-way valve is conical, and cooperates with the valve seat to achieve sealing. It has good sealing and can effectively prevent fluid leakage. It is widely used in automobile chassis and suspension pneumatic systems, but the process requirements are strict; Therefore, there is an urgent need to design a one-way valve that can prevent backflow while ensuring that it is placed inside other valve bodies to reduce occupied space, reduce failure rate, and achieve rapid response. Summary of the invention

[0003] The present invention aims at the technical problems existing in the prior art and provides a one-way valve and a car, which can be integrated into the structures such as the car chassis, suspension pneumatic parts, etc., so as to achieve lightweight and integration while achieving rapid response.

[0004] The technical solution of the present invention to solve the above technical problems is as follows: A first aspect of the present invention provides a one-way valve, comprising a valve body and a valve sheet embedded in the valve body; The valve body is provided with a flow channel, and a fluid outlet is provided at the lower part, the valve plate is provided with a fluid inlet, the flow channel is provided between the fluid inlet and the fluid outlet, and the fluid inlet is communicated with the flow channel; The valve body is elastically deformed under the action of the pressure difference, so that the flow channel is connected to the fluid outlet, so as to guide the fluid in the high-pressure area to the low-pressure area through the fluid inlet, the flow channel and the fluid outlet in sequence. As a further technical solution, the valve body is a structure with an upper opening and an inner groove arranged along its inner circumference, the valve plate is embedded in the inner groove to seal the valve body, and the fluid inlet is exposed at the opening; The flow channel is opened in the valve body and is located at the lower part of the valve plate and is sealed by the valve plate; The valve plate, the flow channel, and the fluid outlet are sequentially arranged on the valve body.

[0005] As a further technical solution, the outer diameter of the inner groove is larger than the outer diameter of the flow channel, and the inner diameter of the flow channel is larger than the outer diameter of the flow channel outlet.

[0006] As a further technical solution, a sealing belt protruding toward the fluid inlet is provided in the flow channel, and the top end surface of the sealing belt abuts against the bottom end surface of the valve plate, so that the valve body is elastically deformed under the action of the pressure difference to separate the valve plate from the sealing belt; The fluid outlet is opened in the sealing zone.

[0007] As a further technical solution, the angle between the outer side wall of the sealing belt and the flow channel is 90-180°.

[0008] As a further technical solution, the sealing belt is a conical column structure and has a common central axis with the fluid outlet.

[0009] As a further technical solution, a shoulder is provided in the fluid outlet in a direction away from the fluid inlet.

[0010] As a further technical solution, the opening area of ​​the upper portion of the valve body is smaller than the area of ​​the upper end surface of the valve plate, and there is a gap between the upper end surface of the valve body and the upper end surface of the valve plate.

[0011] A second aspect of the present invention protects an automobile, comprising a one-way valve as described in the first aspect.

[0012] As a further technical solution, the one-way valve is arranged in the pneumatic system or the automobile chassis.

[0013] The beneficial effects of the present invention are: 1. The one-way valve structure of the present invention realizes efficient one-way conductivity through the structural design of the valve body and the valve plate, and can effectively prevent backflow to achieve pressure stability in the overall structure; 2. The structure is small in size, can save space, has a wide range of installation scenarios, and has flexible installation methods; 3. The valve body is made of elastic materials, such as rubber materials, while the valve body is made of hard materials, such as plastics, which can effectively reduce the failure rate during use, and is easy to maintain and replace, with low manufacturing costs and cost savings; 4. The structure of the one-way valve of the present invention is waterproof. Even if there is water vapor in the low-pressure area, it cannot enter the high-pressure area, and the electrical components in the high-pressure area will not be damaged by water vapor; 5. The automobile equipped with the one-way valve realizes lightness and integration, reduces costs, and realizes quick disassembly and assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 , Figure 2They are respectively schematic diagrams of the three-dimensional structure of a one-way valve of the present invention from different viewing angles; Figure 3 It is a schematic diagram of the three-dimensional structure of the valve plate of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the valve body; Figure 5 It is a schematic diagram of the structure of a one-way valve of the present invention after longitudinal section; Figure 6 It is a schematic diagram of the structure of the valve body after longitudinal section.

[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows: Valve body 1, flow channel 11, fluid outlet 12, shaft shoulder 121, opening 13, inner groove 14, sealing band 15; Valve plate 2, fluid inlet 21. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0017] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means two or more, unless otherwise clearly and specifically defined.

[0018] In the description of the present application, the term "for example" is used to mean "used as an example, illustration or description". Any embodiment described as "for example" in the present application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is given to enable any technician in the field to implement and use the present invention. In the following description, details are listed for the purpose of explanation. It should be understood that a person of ordinary skill in the art can recognize that the present invention can be implemented without using these specific details. In other examples, well-known structures and processes will not be elaborated in detail to avoid unnecessary details to obscure the description of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the widest scope consistent with the principles and features disclosed in the present application.

[0019] Example 1 In order to prevent backflow while achieving lightness and integration, this embodiment provides a one-way valve, which can be used in valve products with limited space in automobile chassis and suspension, see Figure 1-Figure 6 The one-way valve specifically includes a valve body 1 and a valve plate 2 embedded in the valve body 1; the valve body 1 is provided with a flow channel 11, and a fluid outlet 12 is provided at the lower part; the valve plate 2 is provided with a fluid inlet 21, the flow channel 11 is arranged between the fluid inlet 21 and the fluid outlet 12, and the fluid inlet 21 is connected to the flow channel 11; for example, the valve body 1 is made of rubber material, and the valve plate 2 is made of plastic material, which reduces the weight. At the same time, it can be prepared by a more economical manufacturing process with low production cost; when the valve body 1 is elastically deformed under the action of pressure difference, the contact surface of the valve plate 2 and the valve body 1 is separated, so that the flow channel 11 is connected to the fluid outlet 12, so that the fluid in the high-pressure area is sequentially guided to the low-pressure area through the fluid inlet 21, the flow channel 11, and the fluid outlet 12.

[0020] The structure is simple and compact. While meeting the functional requirement of preventing backflow, it can be placed inside the valve body (the valve body here refers to other valves to accommodate the one-way valve structure of the present invention), reducing the overall weight of the valve body and saving space. Compared with existing valves, the one-way valve of the present invention is less prone to mechanical failures, such as valve core jamming, spring failure, etc., thereby improving reliability, such as the reliability of automobile chassis and suspension systems, so that automobile manufacturers can improve the performance and reliability of automobile chassis and suspension systems at a relatively low cost.

[0021] According to this simple structure, the fluid has less resistance when passing through the one-way valve of the present invention, and can achieve a quick response. Therefore, the one-way valve of the present invention can be used in a system with a high requirement for response speed.

[0022] In the specific implementation process, see Figure 5 , Figure 6 The valve body 1 is a structure with an upper opening 13 and an inner groove 14 along its inner circumference. The valve plate 2 is embedded in the inner groove 14 to seal the valve body 1, and the fluid inlet 21 is exposed at the opening 13. The flow channel 11 is opened in the valve body 1, located at the lower part of the valve plate 2 and sealed by the valve plate 2. The valve plate 2, the flow channel 11, and the fluid outlet 12 are sequentially arranged in the valve body 1. It can be explained that the direction of the fluid inlet 21 is a high-pressure area, and the direction of the fluid outlet 12 is a low-pressure area. At this time, the high and low pressure areas can refer to the pressure difference caused by pressure, and can also refer to the pressure difference caused by the temperature difference when the heating element works.

[0023] The height of the inner groove 14 matches the height of the valve plate 2 , so that after the valve plate 2 is embedded in the inner groove 14 , the fluid can only move in one direction, that is, from the fluid inlet through the flow channel and out of the fluid outlet.

[0024] Furthermore, the outer diameter of the inner groove 14 is larger than the outer diameter of the flow channel 11, and the inner diameter of the flow channel 11 is larger than the outer diameter of the outlet of the flow channel 11, so that when the valve body 1 sends elastic deformation, the fluid passes through quickly, and when the valve body 1 does not undergo elastic deformation, but the pressure in the low-pressure area becomes the high-pressure area, the sealing of the valve plate 2 can be further strengthened to prevent the fluid from flowing back.

[0025] In the specific implementation process, see Figure 5 , Figure 6 A sealing belt 15 protruding toward the fluid inlet 21 is provided in the flow channel 11, and the top end surface of the sealing belt 15 abuts against the bottom end surface of the valve plate 2, so that the valve body 1 undergoes elastic deformation under the action of the pressure difference to separate the valve plate 2 from the sealing belt 15; the fluid outlet 12 is opened in the sealing belt 15. When the valve body is elastically deformed under the action of pressure difference, the sealing belt 15 is separated from the valve plate 2 due to the deformation. At this time, the fluid in the flow channel 11 flows out through the fluid outlet 12; due to the movement characteristics of the fluid or the pressure difference, during the movement of the fluid at the fluid outlet 12 toward the valve plate 2, a force in the direction of the valve plate 2 is applied to the sealing belt 15, so that the sealing belt 15 and the bottom end surface of the valve plate 2 are pressed tighter and the seal is tighter. Therefore, the flow channel 11 and the fluid outlet 12 will not be connected, thereby realizing the one-way conduction function of the one-way valve. Even if the low-pressure area suddenly changes to a high-pressure area due to external force or unexpected situation, backflow will not occur due to the structural design of the one-way valve. That is, this simple one-way valve structure ensures that the fluid flows smoothly in a specific direction, greatly improving work efficiency. For example, in the braking system of the automobile chassis, it can quickly respond to braking needs and make the brake fluid or compressed air flow in one direction, ensuring that the braking pressure is quickly established, improving the response speed and reliability of the brake; and in the pneumatic part of the suspension system, it ensures that the gas flows in the designed direction, maintains the stability of the suspension, and improves driving comfort and controllability.

[0026] When preventing the fluid from flowing back, it effectively maintains the pressure stability in the system. In some chassis systems that require precise pressure control, such as hydraulic power steering systems, a small and simple one-way valve can ensure that the system can maintain stable pressure under different working conditions, thereby improving the steering accuracy and reliability. For vehicles with pneumatic suspension, the one-way valve can prevent the air pressure fluctuation caused by external pressure changes during driving, maintain the stability of the suspension height, and improve the driving stability and comfort of the vehicle. The working pressure of the one-way valve of the present invention can reach 13 bar, and the operating temperature range is -40°C to +85°C.

[0027] Furthermore, the angle α between the outer wall of the sealing strip 15 and the flow channel 11 is 90-180°, and the specific angle is determined according to the functional requirements of different products combined with force analysis, and is preferably 135°, so as to maximize the force area of ​​the sealing strip 15, thereby making it easier to open (that is, easy to separate from the valve plate 2, so that the flow channel 11 is connected to the fluid outlet 12); when used in a pressure difference scenario caused by a heating element, the quick-opening one-way valve structure can discharge hot air more quickly, thereby reducing the risk of failure of electronic components due to overheating.

[0028] The sealing belt 15 is a conical column structure and has a common central axis with the fluid outlet 12, so that after the flow channel 11 is connected to the fluid outlet 12, the fluid in the flow channel 11 quickly enters the fluid outlet 12, and at the same time, the force in the one-way valve of the present invention is uniform. Therefore, the fluid inlet 21 is provided in a plurality and evenly distributed on the valve plate 2, for example, the valve plate 2 is circular and the flow channel 11 is annular.

[0029] A shoulder 121 is provided in the fluid outlet 12 in a direction away from the fluid inlet 21. It can be seen that the fluid outlet 12 here is a whole contracted structure to increase the gas contact area of ​​its lower end face. When high-pressure airflow passes through, since F=PS (where F is the force, P is the pressure, and S is the force area), the force in the direction of the fluid inlet 21 will be greater, and the sealing belt 15 will press the valve plate 2 tighter. At this time, the anti-backflow effect of the one-way valve is more stable.

[0030] In the specific implementation process, see Figure 1 , Figure 2 , Figure 5 , Figure 6 The area of ​​the opening 13 at the top of the valve body 1 is smaller than the area of ​​the upper end surface of the valve plate 2, and there is a gap between the upper end surface of the valve body 1 and the upper end surface of the valve plate 2, thereby improving fluid guidance, that is, allowing the fluid in the high-pressure area to quickly and accurately enter the upper end area of ​​the valve body 1 where the valve plate 2 is exposed, and enter the flow channel 11 from the fluid inlet 21.

[0031] The one-way valve protected by this embodiment has a simple structure and can adapt to different installation angles and position requirements. Whether it is installed horizontally, vertically or tilted, it can ensure good one-way conduction performance and sealing effect. This provides greater flexibility for the design and layout of the automobile chassis, making it convenient for engineers to install and adjust according to actual needs.

[0032] Example 2 A car is provided, comprising the one-way valve described in Example 1; further, the reverse valve is arranged in a pneumatic system or a chassis of the car.

[0033] Due to the compact structure of the one-way valve of Example 1, it can be quickly installed in an area with limited space on the automobile chassis. For example, in the complex piping layout in the engine compartment, it can achieve one-way control of the fluid without taking up too much space, leaving more installation and layout space for other components. In some small cars or electric cars, chassis space is more valuable, and a small and simple one-way valve can meet the needs of fluid control without affecting the normal operation of other systems, thereby improving the space utilization of the entire vehicle.

[0034] In addition, the one-way valve structure of Example 1 reduces mechanical parts and potential failure points due to its structural characteristics. Compared with the existing complex valves, the one-way valve structure is less likely to have problems such as valve core jamming and seal failure, thereby improving the reliability of the automobile chassis system. Even in harsh working environments, such as high temperature, vibration, and corrosion, the one-way valve of Example 1 can maintain stable performance and reduce vehicle failures and maintenance times caused by valve failures.

[0035] When the check valve needs to be maintained or replaced, its simple structure makes the operation easier. Maintenance personnel can quickly locate and remove the faulty check valve without complex tools and professional skills, reducing maintenance costs and time. Since the small and simple check valve usually adopts standardized design and size, it is also easier and faster to replace parts, improving maintenance efficiency and vehicle availability.

[0036] In addition, the one-way valve of the present invention adopts a relatively economical manufacturing process and materials, and the production cost is relatively low, so that automobile manufacturers can equip the automobile chassis system with a reliable one-way control function without significantly increasing costs, thereby improving the competitiveness of the product; at the same time, it is also conducive to large-scale production, and the manufacturing cost can be further reduced by optimizing the production process and improving production efficiency. From the perspective of long-term cost-effectiveness: since the one-way valve of the present invention has high reliability and low maintenance cost, it can save users a lot of maintenance and replacement costs during the service life of the car. At the same time, the stable performance also helps to reduce the vehicle downtime caused by valve failure, improve the efficiency of vehicle use, and bring long-term cost benefits to users.

[0037] It should be noted that in the above embodiments, the description of each embodiment has its own emphasis, and for parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0038] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0039] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A one-way valve, characterized in that: It comprises a valve body (1), and a valve plate (2) embedded in the valve body (1); The valve body (1) is provided with a flow channel (11) in the valve body, and a fluid outlet (12) is provided at the lower part; the valve plate (2) is provided with a fluid inlet (21); the flow channel (11) is provided between the fluid inlet (21) and the fluid outlet (12), and the fluid inlet (21) is communicated with the flow channel (11); The valve body (1) undergoes elastic deformation under the action of the pressure difference, so that the flow channel (11) is connected to the fluid outlet (12), so that the fluid in the high-pressure area is discharged to the low-pressure area through the fluid inlet (21), the flow channel (11), and the fluid outlet (12) in sequence.

2. A one-way valve according to claim 1, characterized in that: The valve body (1) is a structure having an upper opening (13) and an inner groove (14) arranged along its inner circumference; the valve plate (2) is embedded in the inner groove (14) to seal the valve body (1) and to expose the fluid inlet (21) to the opening (13); The flow channel (11) is opened in the valve body (1), is located at the lower part of the valve plate (2), and is sealed by the valve plate (2); The valve plate (2), the flow channel (11), and the fluid outlet (12) are sequentially arranged on the valve body (1).

3. A one-way valve according to claim 2, characterized in that: The outer diameter of the inner groove (14) is greater than the outer diameter of the flow channel (11), and the inner diameter of the flow channel (11) is greater than the outer diameter of an outlet of the flow channel (11).

4. A one-way valve according to claim 2, characterized in that: A sealing belt (15) is provided in the flow channel (11) and protrudes toward the fluid inlet (21), and the top end surface of the sealing belt (15) abuts against the bottom end surface of the valve plate (2), so that the valve body (1) is elastically deformed under the action of the pressure difference to separate the valve plate (2) from the sealing belt (15); The fluid outlet (12) is opened in the sealing band (15).

5. A one-way valve according to claim 4, characterized in that: The included angle α between the outer side wall of the sealing belt (15) and the flow channel (11) is 90-180°.

6. A one-way valve according to claim 5, characterized in that: The sealing belt (15) is a conical column structure and shares a central axis with the fluid outlet (12).

7. A one-way valve according to claim 6, characterized in that: A shaft shoulder (121) is provided in the fluid outlet (12) in a direction away from the fluid inlet (21).

8. A one-way valve according to claim 1, characterized in that: The area of ​​the opening (13) at the top of the valve body (1) is smaller than the area of ​​the upper end surface of the valve plate (2), and there is a gap between the upper end surface of the valve body (1) and the upper end surface of the valve plate (2).

9. A car, characterized in that: It comprises a one-way valve as described in any one of claims 1-8.

10. The automobile according to claim 9, characterized in that: The one-way valve is arranged in the pneumatic system or the automobile chassis.

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