One-way valve applied to automobile suspension system

Abstract

The utility model discloses a one-way valve applied to an automobile suspension system, and belongs to the technical field of automobile parts, the one-way valve comprises a valve body, a valve core, an elastic piece and a ball body, the valve body is of a circular tube structure, two ends of the valve body are respectively a lead-in port and a lead-out port, the valve core is installed in the valve body, and the elastic piece is installed in the valve body. At least three supporting feet are arranged on the outer surface of the valve element and abut against the inner wall face of the valve body, a fluid channel for fluid to pass through is reserved between the outer surface of the valve element and the inner wall face of the valve body, and a ball is installed at the end, close to the valve body guide-in opening, of the valve body through an elastic piece. And the ball body moves to one side of the guide-in opening under the action of the elastic piece to block the guide-in opening. The structural design of the one-way valve is optimized, the fluid flow which can pass through is effectively improved, and the one-way valve is simple and reliable in structure.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile parts, in particular to a one-way valve applied to an automobile suspension system. BACKGROUND

[0002] The one-way valve is a key fluid control element and is widely applied to the hydraulic suspension system. The one-way valve is a set of two parts, and the main function of the one-way valve is to control the motor in the working process (forward rotation or reverse rotation) to ensure the balance of the two-way pressure, so as to realize the precise control of the suspension system and other functions.

[0003] The structure of the traditional one-way valve is mainly a ball valve, a cone valve or a spring type valve core structure, and the flow mainly depends on the opening of the valve core and the pressure difference of the fluid. However, the design has the following disadvantages under actual working conditions: due to the limitation of the valve core structure and the flow channel design, the existing one-way valve allows limited fluid flow in the open state, which is difficult to meet the working requirements of the automobile suspension system under the requirements of rapid response and large flow and the cost control needs. The complex structure of the traditional one-way valve is easy to cause wear or failure of the parts, thereby affecting the sealing performance and the accuracy of the flow control.

[0004] Therefore, it is of practical significance to develop a one-way valve which can effectively improve the fluid flow, optimize the response speed and has a reliable structure, so as to improve the performance of the automobile suspension system. CONTENT OF THE INVENTION

[0005] The technical problem to be solved by the application is to provide a one-way valve applied to an automobile suspension system, optimize the structural design of the one-way valve, effectively improve the fluid flow and have a simple and reliable structure.

[0006] The technical scheme adopted by the application is: a one-way valve applied to an automobile suspension system, comprising a valve body, a valve core, an elastic member and a ball, the valve body is in a circular pipe structure, both ends of the valve body are a guide inlet and a guide outlet respectively, the valve core is installed in the valve body, at least three supporting legs are arranged on the outer surface of the valve core and abut against the inner wall surface of the valve body, a fluid channel is left between the outer surface of the valve core and the inner wall surface of the valve body for fluid to pass through, the ball is installed at one end close to the guide inlet of the valve body through the elastic member, and the ball moves to the side of the guide inlet under the action of the elastic member to block the guide inlet.

[0007] Compared with the prior art, the application has the advantages that a fluid passage is left between the outer surface of the valve core and the inner wall surface of the valve body, and the valve core abuts against the inner wall surface of the valve body through at least three feet. This design enables the fluid to flow in multiple passages between the valve core and the inner wall surface of the valve body instead of a single flow channel in a traditional check valve. This greatly increases the flow area of the fluid, thereby significantly improving the passing capacity of the fluid and better meeting the working requirements of the automobile suspension system under the requirements of rapid response and large flow.

[0008] The check valve has a relatively simple structure and is mainly composed of a valve body, a valve core, an elastic member and a ball. Compared with a traditional complex ball valve, a cone valve or a spring type valve core structure, this design reduces the number and complexity of parts. When the fluid pressure changes, the combination of the ball and the elastic member can quickly respond to achieve the plugging or opening of the guide inlet, thereby improving the response speed of the check valve and better adapting to the changing requirements of the automobile suspension system under different working conditions. In addition, the check valve has a relatively simple structure, fewer parts, a relatively simple machining process and a low production cost. At the same time, the simple structure also makes the check valve more convenient and fast in maintenance and replacement of parts, thereby reducing the maintenance cost and time.

[0009] In some embodiments of the application, the inner wall surface of the valve body is a cylindrical structure, the valve core is a square rod structure as a whole, and the valve core includes four feet at the corners, which abut against the inner wall surface of the valve body.

[0010] In the application, the valve core in the square rod structure is the preferred structure scheme of the application. That is, the valve body and the valve core have a large flow rate, and the regular shape of the valve core itself can effectively reduce the molding cost. This design minimizes the contact area between the valve core and the inner wall surface of the valve body, thereby increasing the flow rate of the fluid. At the same time, the square rod structure of the valve core is simple and easy to process, and the four feet ensure the stability of the valve core in the valve body.

[0011] In some embodiments of the application, the four corners of the valve core are chamfered along the length direction, and the chamfered surface connects the inner wall surface of the valve body. That is, the feet connect the inner wall surface of the valve body through the chamfered surface. This reasonably increases the contact area of the valve core and the valve body and ensures the stability of the connection between the valve core and the valve body.

[0012] In some embodiments of the present application, the valve core and the valve body are connected in an interference fit. The interference fit can ensure that the connection between the valve core and the valve body is very tight, thereby improving the sealing performance of the one-way valve. This connection method is simple and reliable, does not require additional fixing parts, and reduces the number and complexity of parts.

[0013] In some embodiments of the present application, the valve core is provided with a guide passage along the axis, which penetrates through the two end faces of the valve core. The fluid entering through the inlet port can flow to the outlet port through the guide passage.

[0014] The provision of the guide passage allows the fluid to flow directly to the outlet port through the valve core, thereby improving the flow rate of the fluid. This design simplifies the fluid path, reduces the resistance of the fluid when passing through, and improves the passing efficiency of the fluid.

[0015] In some embodiments of the present application, the guide passage has a stepped tubular structure, which includes an upper segment, a middle segment and a lower segment connected in sequence. The upper segment is arranged close to the outlet port side, the lower segment is arranged close to the inlet port side, the caliber of the upper segment is smaller than that of the middle segment, and the caliber of the middle segment is smaller than that of the lower segment.

[0016] The stepped tubular structure of the guide passage is designed to cooperate with the installation of the internal parts of the one-way valve, and to gradually reduce the flow area when the fluid passes through, thereby improving the flow rate of the fluid.

[0017] In some embodiments of the present application, the outer diameter of the elastic member is greater than the caliber of the upper segment, and the outer diameter of the elastic member is smaller than the caliber of the middle segment. The elastic member is installed at the middle segment. The outer diameter of the elastic member being smaller than the caliber of the middle segment can ensure that the elastic member has enough space to compress and recover in the middle segment, thereby ensuring the rapid response of the ball.

[0018] In some embodiments of the present application, the outer diameter of the ball is greater than the caliber of the middle segment, and the elastic member is a straight spring. One end of the straight spring abuts against the end of the middle segment, and the other end of the straight spring acts on the ball. The straight spring has a simple structure and strong elastic recovery force, which can ensure the rapid response of the ball under the action of the elastic member.

[0019] In some embodiments of the present application, the outer diameter of the ball is smaller than or equal to the lower segment, and the ball is partially embedded in the lower segment. The ball extends out of the lower segment under the action of the elastic member to act on the inlet port.

[0020] The outer diameter of the ball being smaller than or equal to the lower segment can ensure that the ball has enough space to move in the lower segment, thereby ensuring the rapid response of the ball. The ball can completely block the inlet port under the action of the elastic member, thereby improving the sealing performance of the one-way valve.

[0021] In some embodiments of the present application, the end face of the valve core opposite the inlet is a middle convex curved surface, and the end close to the inlet is tapered.

[0022] The middle convex curved surface of the valve core can make the fluid flow more smoothly, reduce the impact of the fluid on the valve core, and thus prolong the service life of the valve core. In addition, the structure of the valve core facilitates installation with the valve body.

[0023] The above embodiments can be combined in any manner in accordance with common sense in the art. BRIEF DESCRIPTION OF DRAWINGS

[0024] The present application will be further described in detail below in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments and thus should not be considered as limiting the scope of the present application. In addition, unless specifically indicated, the drawings only schematically represent the composition or structure of the described objects and can include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0025] Figure 1 Structure of the present application Figure 1 ;

[0026] Figure 2 Structure of the present application Figure 2 ;

[0027] Figure 3 Top view of the present application

[0028] Figure 4 Cross-sectional view of AA section Figure 3

[0029] Cross-sectional view of BB section Figure 5 Figure 3 Internal structure diagram of the present application

[0030] Figure 6 In which, the reference signs are specifically explained as follows: 1, valve body; 2, valve core; 3, elastic member; 4, ball; 5, inlet; 6, outlet; 7, foot; 8, fluid passage; 9, through passage; 10, upper section; 11, middle section; 12, lower section. DETAILED DESCRIPTION

[0031] The present application will be further described in detail below in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments and thus should not be considered as limiting the scope of the present application. In addition, unless specifically indicated, the drawings only schematically represent the composition or structure of the described objects and can include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0032] The present application will be further described in detail below in conjunction with the drawings and preferred embodiments, but those skilled in the art will appreciate that the drawings are only drawn for the purpose of explaining the preferred embodiments and thus should not be considered as limiting the scope of the present application. In addition, unless specifically indicated, the drawings only schematically represent the composition or structure of the described objects and can include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0033] ​To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0034] A one-way valve used in an automotive suspension system, as shown in Embodiment 1 Figures 1 to 5 As shown, the valve includes a valve body 1, a valve core 2, an elastic element 3, and a ball 4. The valve body 1 has a cylindrical tubular structure, with an inlet 5 and an outlet 6 at its two ends. The valve core 2 is installed inside the valve body 1, and its outer surface has at least three supports 7 that abut against the inner wall of the valve body 1. This design not only provides stable support for the valve core 2, keeping it in a fixed position within the valve body 1, but also effectively reduces friction between the valve core 2 and the inner wall of the valve body 1. During long-term use, this structure can reduce wear on components and improve the overall reliability of the check valve.

[0035] A fluid channel 8 is provided between the outer surface of the valve core 2 and the inner wall of the valve body 1 for fluid to pass through. This design allows the fluid to flow in multiple channels between the valve core 2 and the inner wall of the valve body 1, rather than a single flow channel as in a traditional one-way valve. This greatly increases the fluid flow area, thereby significantly improving the fluid throughput and better meeting the operational requirements of automotive suspension systems under conditions of rapid response and high flow rate.

[0036] A ball 4 is mounted on the end of the valve body 1 near the inlet 5 via an elastic element 3. Under the action of the elastic element 3, the ball 4 moves towards the inlet 5 to block it. This one-way valve has a relatively simple structure, mainly composed of the valve body 1, valve core 2, elastic element 3, and ball 4. Compared to the traditional complex structures of ball valves, cone valves, or spring-loaded valve cores 2, this design reduces the number and complexity of components. When fluid pressure changes, the combination of the ball 4 and elastic element 3 can respond quickly, blocking or opening the inlet 5, thereby improving the response speed of the one-way valve and better adapting to the changing needs of the automotive suspension system under different operating conditions. Furthermore, the one-way valve has a relatively simple structure with fewer components, a simpler manufacturing process, and lower production costs. This simple structure also makes maintenance and component replacement more convenient and faster, reducing maintenance costs and time.

[0037] Example 2, as Figures 1 to 6 As shown, the inner wall of the valve body 1 is cylindrical, and the valve core 2 is square rod-shaped. The valve core 2 includes four legs 7 located at the corners, and the four legs 7 abut against the inner wall of the valve body 1.

[0038] In the present application, the valve core 2 with square rod structure is the preferred structure scheme of the present application. That is, it can ensure that the valve body 1 and the valve core 2 have a larger flow rate, and the valve core 2 itself adopts a regular shape to effectively reduce the molding cost. This design minimizes the contact area between the valve core 2 and the inner wall of the valve body 1, thereby increasing the flow rate of the fluid. At the same time, the square rod-shaped valve core 2 structure is simple and easy to process, and the four feet 7 ensure the stability of the valve core 2 in the valve body 1.

[0039] The four corners of the valve core 2 are chamfered along the length direction, and the chamfered surface is connected with the inner wall of the valve body 1. That is, the feet 7 are connected with the inner wall of the valve body 1 through the chamfered surface. Reasonably increasing the contact area between the valve core 2 and the valve body 1 ensures the stability of the connection between the two.

[0040] The valve core 2 is connected with the valve body 1 in interference fit. The interference fit can ensure that the connection between the valve core 2 and the valve body 1 is very tight, thereby improving the sealing performance of the one-way valve. This connection method is simple and reliable, and does not require additional fixing parts, thereby reducing the number and complexity of parts.

[0041] The valve core 2 is provided with a guide passage 9 along the axis, and the guide passage 9 penetrates through the two end faces of the valve core 2. The fluid entering through the guide inlet 5 can flow to the guide outlet 6 through the guide passage 9. The arrangement of the guide passage 9 enables the fluid to flow directly to the guide outlet 6 through the valve core 2, thereby improving the flow rate of the fluid. This design simplifies the fluid path, reduces the resistance of the fluid when passing through, and improves the passing efficiency of the fluid.

[0042] The guide passage 9 has a stepped tubular structure, and the guide passage 9 includes an upper section 10, a middle section 11 and a lower section 12 connected in sequence. The upper section 10 is arranged near the guide outlet 6 side, the lower section 12 is arranged near the guide inlet 5 side, the caliber of the upper section 10 is smaller than that of the middle section 11, and the caliber of the middle section 11 is smaller than that of the lower section 12. The stepped tubular structure of the guide passage 9 is used to cooperate with the installation of the internal parts of the one-way valve, and to gradually reduce the flow area of the fluid when passing through, thereby improving the flow rate of the fluid.

[0043] The outer diameter of the elastic member 3 is greater than the caliber of the upper section 10, and the outer diameter of the elastic member 3 is smaller than the caliber of the middle section 11. The elastic member 3 is installed at the middle section 11. The outer diameter of the elastic member 3 being smaller than the caliber of the middle section 11 can ensure that the elastic member 3 has enough space to compress and recover in the middle section 11, thereby ensuring the rapid response of the ball 4.

[0044] The outer diameter of the ball 4 is greater than the caliber of the middle section 11. The elastic member 3 is a straight spring, one end of the elastic member abuts against the end of the middle section 11, and the other end of the elastic member 3 acts on the ball 4. The straight spring has a simple structure and strong elastic recovery force, which can ensure the rapid response of the ball 4 under the action of the elastic member 3.

[0045] The outer diameter of the ball 4 is less than or equal to the lower section 12, the ball 4 is partially embedded in the lower section 12, the ball 4 is extended out of the lower section 12 under the action of the elastic member 3 and acts on the inlet 5. The outer diameter of the ball 4 being less than or equal to the lower section 12 can ensure that the ball 4 has enough space to move in the lower section 12, thereby ensuring the rapid response of the ball 4. The ball 4 can completely block the inlet 5 under the action of the elastic member 3, thereby improving the sealing performance of the one-way valve.

[0046] The end face of the valve core 2 opposite to the inlet 5 is a middle convex curved surface, and the end close to the inlet 5 is treated with a closing process. The middle convex curved surface of the valve core 2 can make the fluid pass more smoothly, reduce the impact of the fluid on the valve core 2, thereby prolonging the service life of the valve core 2. In addition, the structure of the valve core 2 is convenient for installation with the valve body 1.

[0047] The other contents of the second embodiment are the same as those of the first embodiment.

[0048] The above has carried on the detailed introduction to the present application, the principle and implementation mode of the present application are described in the text by applying specific examples, the above embodiment is only used for helping understanding the present application and core idea. It should be pointed out that, for ordinary skilled person in the art, on the premise of not departing from the principle of the present application, the present application can also be improved and modified in several ways, these improvements and modifications also fall within the protection scope of the present application claims.

Claims

1. A one-way valve applied in an automotive suspension system, characterized in that, The utility model provides a valve, including valve body (1), valve core (2), elastic element (3) and sphere (4), valve body (1) is tubular structure, and the both ends of valve body (1) are guide inlet (5) and guide outlet (6) respectively, valve core (2) is installed in valve body (1), the outer surface of valve core (2) is provided with at least three supporting legs (7) and the inner wall surface of valve body (1) is abutted, and the outer surface of valve core (2) and the inner wall surface of valve body (1) are left fluid passageway (8) for fluid, the one end close to guide inlet (5) of valve body (1) is installed with sphere (4) through elastic element (3), and sphere (4) moves to guide inlet (5) side under the action of elastic element (3) and blocks guide inlet (5).

2. A check valve for use in an automotive suspension system according to claim 1, wherein The inner wall surface of valve body (1) is cylindrical structure, and the valve core (2) is square bar structure, and the valve core (2) includes four supporting legs (7) at the corners, and the four supporting legs (7) are abutted with the inner wall surface of valve body (1).

3. A check valve for use in an automotive suspension system as defined in claim 1, wherein The four corners of valve core (2) are chamfered along the length direction, and the chamfered surface is connected with the inner wall surface of valve body (1).

4. The check valve for use in an automotive suspension system of claim 1, wherein, The valve core (2) is connected with the valve body (1) in interference fit.

5. The check valve for use in an automotive suspension system of claim 1, wherein, The valve core (2) is provided with a through channel (9) along the axis, and the through channel (9) penetrates the two end surfaces of the valve core (2), and the fluid entering from the guide inlet (5) can flow to the guide outlet (6) through the through channel (9).

6. A check valve for use in an automotive suspension system according to claim 5, wherein The through channel (9) is a stepped tubular structure, and the through channel (9) includes an upper section (10), a middle section (11) and a lower section (12) connected in sequence, the upper section (10) is arranged close to the guide outlet (6), the lower section (12) is arranged close to the guide inlet (5), the caliber of the upper section (10) is smaller than that of the middle section (11), and the caliber of the middle section (11) is smaller than that of the lower section (12).

7. A check valve for use in an automotive suspension system according to claim 6, wherein The outer diameter of the elastic element (3) is greater than the caliber of the upper section (10), and the outer diameter of the elastic element (3) is smaller than the caliber of the middle section (11), and the elastic element (3) is installed at the middle section (11).

8. A check valve for use in an automotive suspension system according to claim 7, wherein The outer diameter of the sphere (4) is greater than the caliber of the middle section (11), the elastic element (3) is a straight spring, one end of the elastic element is abutted against the end of the middle section (11), and the other end of the elastic element (3) acts on the sphere (4).

9. A check valve for use in a vehicle suspension system according to claim 6 or 7, wherein The outer diameter of the sphere (4) is smaller than or equal to the lower section (12), and the sphere (4) is partially embedded into the lower section (12), and the sphere (4) is extended out of the lower section (12) to act on the guide inlet (5) under the action of the elastic element (3).

10. The check valve for use in an automotive suspension system of claim 1, wherein, The end surface of the valve core (2) opposite to the guide inlet (5) is a curved surface with a convex middle part, and the one end close to the guide inlet (5) is treated with a closing process.

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