Switching valve for automobile suspension system

Abstract

A switch valve for an automobile suspension system comprises a valve body, a valve element arranged in the valve body and a valve lock rotationally arranged on the valve body and used for driving the valve element. A through channel is formed in the valve body, and the valve body is detachably connected with an external connector. The valve element comprises two ball seals arranged in the valve body channel and a ball head arranged between the two ball seals and matched with the two ball seals. A stepped hole communicated with the channel is formed in the valve body, the valve lock is rotationally arranged in the stepped hole and connected with the ball head, and the stepped hole is connected with the valve lock through a sealing ring. According to the utility model, the valve lock is rotationally arranged on the valve body and is connected with the valve core, so that when the suspension system is maintained and replaced, the valve core can be closed through the valve lock, the disconnection of a pipeline is realized, the waste of a medium in the pipeline is reduced, and the cleanliness of the suspension system is better maintained.

Description

Technical Field

[0001] This utility model belongs to the field of switching valves, and particularly relates to a switching valve for automotive suspension systems. Background Technology

[0002] A fully active suspension system optimizes both vehicle handling and ride comfort by dynamically adjusting the stiffness and damping of the suspension system based on real-time monitoring of the vehicle's driving status. Currently, vehicle suspension systems are designed with shock absorbers and motor pumps connected by pipes, and these pipes are equipped with filling heads for internal media to flow during system operation. However, during maintenance or replacement, the pipes are normally open, leading to leakage and waste of the internal media. Furthermore, refilling is required after maintenance or replacement, impacting subsequent assembly time and the assembly process environment, and compromising cleanliness. Utility Model Content

[0003] The purpose of this utility model is to provide a switching valve for an automotive suspension system to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the specific technical solution of the switching valve for an automotive suspension system according to this utility model is as follows:

[0005] A switching valve for an automotive suspension system includes a valve body, a valve core disposed within the valve body, and a valve lock rotatably mounted on the valve body for driving the valve core. The valve body has a through-channel, and the valve body is detachably connected to an external connector. The valve core includes two ball seals disposed within the valve body channel, and a ball head disposed between the two ball seals and engaging with them. A stepped hole communicating with the channel is located on the valve body, and the valve lock is rotatably disposed in the stepped hole and connected to the ball head. The stepped hole and the valve lock are connected by a sealing ring. The stepped hole includes a first mounting hole, a second mounting hole, and a through hole sequentially formed from the inside to the outside of the valve body channel. The valve lock includes a first retaining ring rotatably disposed within the first mounting hole, a second retaining ring rotatably disposed within the second mounting hole, and a locking rod movably disposed within the through hole. The bottom surface of the first retaining ring has a connecting rod that connects to the ball head. The sealing ring includes a first O-ring disposed between the first retaining ring and the top surface of the first mounting hole, and a second O-ring fitted onto the second retaining ring and engaging with the second mounting hole.

[0006] Furthermore, the valve body is provided with a dustproof assembly that cooperates with the ball seal within the channel. The dustproof assembly includes a spring located at the outer end of the ball seal and a dustproof ring located at the outer end of the spring, with the dustproof ring movably disposed within the channel. A third mounting hole is formed radially on the dustproof ring, and a rotating shaft is rotatably mounted within the third mounting hole. A flap on the rotating shaft is provided that mates with the center hole of the dustproof ring. A mounting groove is formed on the dustproof ring, and the rotating shaft passes through the mounting groove. A rotating spring is fitted onto the rotating shaft portion within the mounting groove, with one end of the rotating spring connected to the mounting groove and the other end connected to the rotating shaft. A connecting plate is provided at the outer end of the ball seal, and a support arm on the connecting plate cooperates with the flap.

[0007] Furthermore, the free end of the outrigger is equipped with rollers that cooperate with the flap.

[0008] Furthermore, the inner wall of the channel near the dustproof component is provided with a thread for connection to an external connector, and grooves with a diameter larger than the inner diameter of the channel are opened at both ends of the valve body, and a third O-ring is provided in the groove.

[0009] Furthermore, the locking lever is hexagonal.

[0010] The switching valve for an automotive suspension system according to this utility model has the following advantages:

[0011] 1. This utility model features a valve lock rotatably mounted on the valve body and connected to the valve core. When the suspension system is being repaired or replaced, the valve core can be closed by the valve lock to disconnect the pipeline, reducing the waste of medium in the pipeline and better maintaining the cleanliness of the suspension system.

[0012] 2. By setting up a dustproof component, this utility model can protect the end of the valve body exposed to the outside after the external connector is disassembled, preventing external dust from entering the valve body channel and causing contamination of the medium inside the valve body. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a switching valve for an automotive suspension system according to the present invention;

[0014] Figure 2 This is a schematic diagram of the valve core and valve lock of this utility model;

[0015] Figure 3 This is a schematic diagram of the stepped hole and valve lock of this utility model;

[0016] Figure 4 This is a schematic diagram of the dustproof component of this utility model.

[0017] Explanation of markings in the diagram:

[0018] 1. Valve body; 2. Connector; 3. Ball head; 4. Locking rod; 5. Ball seal; 6. First mounting hole; 7. Second mounting hole; 8. First retaining ring; 9. First O-ring; 10. Second retaining ring; 11. Second O-ring; 12. Through hole; 13. Spring; 14. Dustproof ring; 15. Third mounting hole; 16. Rotary shaft; 17. Flip plate; 18. Mounting groove; 19. Rotary spring; 20. Connecting rod; 21. Connecting plate; 22. Support arm; 23. Roller; 24. Groove; 25. Third O-ring. Detailed Implementation

[0019] To better understand the purpose, structure, and function of this utility model, the following description, in conjunction with the accompanying drawings, provides a more detailed account of a switching valve for an automotive suspension system.

[0020] like Figures 1 to 4 As shown, this utility model discloses a switching valve for an automotive suspension system, comprising a valve body 1, a valve core disposed within the valve body 1, and a valve lock rotatably mounted on the valve body 1 for driving the valve core. A through channel is formed within the valve body 1, and the valve body 1 is detachably connected to an external connector 2. The valve core can be rotated via the valve lock, thereby closing the valve core within the channel of the valve body 1, disconnecting the oil circuit. When the oil circuit is disconnected, it facilitates maintenance of the suspension system and replacement of the oil circuit. Simultaneously, it reduces the waste of medium within the pipeline, thus better maintaining the cleanliness of the suspension system.

[0021] Specifically, the valve core includes two ball seals 5 disposed within the valve body 1 channel, a ball head 3 disposed between the two ball seals 5 and cooperating with the two ball seals 5, and a flow hole 12 is opened on each of the two ball seals 5, and a flow hole 12 corresponding to the ball seal 5 is also opened on the ball head 3. Figure 2 and Figure 3As shown, a stepped hole communicating with the channel is opened on the valve body 1, and the valve lock is rotatably installed in the stepped hole and connected to the ball head 3. The stepped hole and the valve lock are connected by a sealing ring to achieve a seal between the stepped hole and the channel. The stepped hole for installing the valve lock includes a first mounting hole 6, a second mounting hole 7, and a through hole 12 opened sequentially from the inside to the outside of the valve body 1 channel. The valve lock includes a first retaining ring 8 rotatably installed in the first mounting hole 6, a second retaining ring 10 rotatably installed in the second mounting hole 7, and a locking rod 4 movable in the through hole 12. A connecting rod 20 connected to the ball head 3 is provided on the bottom surface of the first retaining ring 8. The sealing ring for sealing consists of a first O-ring 9 between the first retaining ring 8 and the top surface of the first mounting hole 6, and a second O-ring 11 fitted on the second retaining ring 10 and mating with the second mounting hole 7. When the suspension system needs maintenance or pipeline replacement, the locking lever 4 is driven to rotate within the through hole 12 via external operation (e.g., manual or electric). This, in turn, drives the second retaining ring 10 and the first retaining ring 8 to rotate within their respective second mounting holes 7 and first mounting holes 6. The rotation of the first retaining ring 8 drives the ball head 3 to rotate between the two ball seals 5 via the connecting rod 20, changing the opening degree of the ball head 3 and the flow holes 12 of the two ball seals 5. When the ball head 3 completely blocks the passage, the suspension system is in a closed state, thus preventing the leakage of the internal medium of the valve body 1. When the ball head 3 rotates back to its initial position, the suspension system returns to a fully open state. It should be noted that the sealing ring consists of a first O-ring 9 between the first retaining ring 8 and the top surface of the first mounting hole 6, and a second O-ring 11 fitted on the second retaining ring 10 and mating with the second mounting hole 7. This provides a double seal within the stepped hole, further improving the sealing performance between the stepped hole and the valve lock, and helping to prevent leakage of the internal medium, thereby improving the reliability and stability of the suspension system.

[0022] To facilitate the connection between valve body 1 and external connector 2, a detachable connection is adopted between external connector 2 and valve body 1. Specifically, the inner wall of the channel near the dustproof component is provided with a thread for connection with external connector 2, and grooves 24 with a diameter larger than the inner diameter of the channel are opened at both ends of valve body 1. A third O-ring 25 is installed in the groove 24. This allows the external connector 2 and valve body 1 to be detachably connected through a threaded connection. The connector at the other end of valve body 1 also has a component similar to the protrusion on the top surface of the left end of valve body 1. When connecting the connector and valve body 1, the connector can be inserted into the channel of valve body 1, and then a bolt can be inserted into the through hole on the protrusion to connect valve body 1 and connector. Furthermore, the third O-ring 25, as an elastic sealing element, can fit tightly between the groove 24 and external connector 2, effectively preventing fluid leakage. The design of the groove 24 provides sufficient installation space and compression margin for the third O-ring 25, allowing the O-ring to fully exert its sealing function when compressed. This enhances the reliability of the connection between valve body 1 and external connector 2, reducing malfunctions and leaks caused by loose connections or seal failures.

[0023] To facilitate operation of the locking lever 4, it is hexagonal. The hexagonal shape of the locking lever 4 allows it to be perfectly matched with tools such as wrenches and sockets, making it easier and more accurate for operators to turn it, thus effectively improving work efficiency.

[0024] Preferably, a dustproof component that mates with the ball seal 5 is provided on the valve body 1 within the channel. By providing the dustproof component, after the external connector 2 is disassembled, the dustproof component will protect the end of the valve body 1 exposed to the outside, preventing external dust from entering the channel of the valve body 1 and causing contamination of the medium inside the valve body 1. Specifically, the dustproof component includes a spring 13 located at the outer end of the ball seal 5, the spring 13 being arranged along the axial direction of the channel, and a dustproof ring 14 being provided at the outer end of the spring 13, and the dustproof ring 14 being movably disposed within the channel, the diameter of the dustproof ring 14 being adapted to the inner diameter of the channel. The dustproof ring 14 has a third mounting hole 15 along its radial direction, and a rotating shaft 16 is rotatably installed in the third mounting hole 15. The rotating shaft 16 is equipped with a flap 17 that cooperates with the center hole of the dustproof ring 14. The opening and closing of the flap 17 to the center hole of the dustproof ring 14 can be controlled by rotating the flap 17. When the flap 17 is open on the dustproof ring 14, the medium in the valve body 1 can flow through the center hole of the dustproof ring 14. When the flap 17 is closed on the dustproof ring 14, that is, when the external connector 2 is removed from the valve body 1, the dustproof ring 14 and the flap 17 can block external dust and impurities.

[0025] To enable the flap 17 to rotate, a mounting groove 18 is provided on the dustproof ring 14, and a rotating shaft 16 passes through the mounting groove 18. A rotating spring 19 is fitted onto the rotating shaft 16 within the mounting groove 18, with one end of the rotating spring 19 connected to the mounting groove 18 and the other end connected to the rotating shaft 16. Meanwhile, a connecting plate 21 is provided at the outer end of the ball seal 5, and a support arm 22 that cooperates with the flap 17 is provided on the connecting plate 21. When the external connector 2 is installed onto the valve body 1, the head of the external connector 2 will first be inserted into the through hole 12 of the valve body 1. After the head of the connector 2 is inserted into the valve body 1, it will contact the dust seal 14. Then, the connector 2 will be rotated to connect with the internal thread of the valve body 1. As the connector 2 moves into the valve body 1, the dust seal 14 will also move towards the ball head 3 and compress the spring 13. At the same time, the flap 17 will be pushed open by the support arm 22. While the flap 17 is being pushed open by the support arm 22, the flap 17 will drive the rotating shaft 16 to rotate, and the rotating shaft 16 will exert force on the rotating spring 19. After the connector 2 is connected, the ball head 3 can be opened. When connector 2 is removed from valve body 1, the ball head 3 is closed first, and then connector 2 is removed. When connector 2 is removed from valve body 1, the dust seal 14 moves outward with valve body 1 under the action of spring 13, and the rotating spring 19 drives the flap 17 to rotate to the output position through the rotating shaft 16. After connector 2 is removed from valve body 1, the flap 17 closes the center hole of the protective ring, and the outer end face of the protective ring moves to be flush with the outer end face of valve body 1, effectively preventing dust and impurities from entering the channel and protecting the ball seal 5 and valve body 1 from wear and corrosion. Furthermore, the design of the rotating spring 19 allows the flap 17 to automatically reset without external intervention, improving the adaptability and reliability of the switching valve.

[0026] like Figure 4 As shown, a roller 23 that rotatably engages with the flap 17 is provided at the free end of the support arm 22. The roller 23 reduces friction and wear on the flap 17, which not only extends the service life of the support arm 22 and the flap 17, but also improves the reliability and durability of the switching valve.

[0027] Working principle: When both ends of the valve body 1 are connected to the external connector 2, the external connector 2 will push the corresponding dustproof ring 14 to move. The flap 17 on the dustproof ring 14 will rotate under the action of the roller 23, releasing the seal on the center hole of the dustproof ring 14. When the switch valve needs to be opened, the locking rod 4 is rotated. The locking rod 4 drives the second retaining ring 10 and the first retaining ring 8 to rotate, which in turn drives the ball head 3 to rotate through the connecting rod 20, so that the flow hole 12 of the ball head 3 and the flow holes 12 of the two ball seals 5 are connected. Similarly, when the switch valve needs to be closed, the locking rod 4 is rotated in the opposite direction. When the connector 2 is removed from the valve body 1, the dustproof ring 14 will move along with the connector 2 as the valve body 1 moves outward. The flap 17 on the dustproof ring 14 will rotate to the initial position under the action of the rotating shaft 16 and the rotating spring 19 to complete the seal on the center hole of the dustproof ring 14.

[0028] It is understood that this utility model has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of this utility model. Furthermore, under the teachings of this utility model, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of this utility model.

Claims

1. A switching valve for an automotive suspension system, characterized in that: Includes a valve body (1), a valve core disposed within the valve body (1), and a valve lock rotatably disposed on the valve body (1) for driving the valve core; The valve body (1) has a through channel, and the valve body (1) is detachably connected to the external connector (2); The valve core includes two ball seals (5) disposed in the passage of the valve body (1), and a ball head (3) disposed between the two ball seals (5) and cooperating with the two ball seals (5); A stepped hole communicating with the channel is opened on the valve body (1), and the valve lock is rotatably located in the stepped hole and connected to the ball head (3). The stepped hole and the valve lock are connected by a sealing ring. The stepped hole includes a first mounting hole (6), a second mounting hole (7) and a through hole (12) sequentially opened from the inside to the outside of the valve body (1) channel. The valve lock includes a first retaining ring (8) rotatably disposed in the first mounting hole (6), a second retaining ring (10) rotatably disposed in the second mounting hole (7), and a locking rod (4) movably disposed in the through hole (12). The bottom surface of the first retaining ring (8) is provided with a connecting rod (20) connected to the ball head (3). The sealing ring includes a first O-ring (9) provided between the first retaining ring (8) and the top surface of the first mounting hole (6) and a second O-ring (11) fitted on the second retaining ring (10) and cooperating with the second mounting hole (7).

2. The switching valve for an automotive suspension system according to claim 1, characterized in that: The valve body (1) is provided with a dustproof component that cooperates with the ball seal (5) in the channel. The dustproof component includes a spring (13) located at the outer end of the ball seal (5) and a dustproof ring (14) located at the outer end of the spring (13). The dustproof ring (14) is movably located in the channel. A third mounting hole (15) is provided radially on the dustproof ring (14), and a rotating shaft (16) is rotatably provided in the third mounting hole (15). A flap (17) that mates with the center hole of the dustproof ring (14) is provided on the rotating shaft (16). A mounting groove (18) is provided on the dustproof ring (14), and the rotating shaft (16) passes through the mounting groove (18). A rotating spring (19) is sleeved on the rotating shaft (16) part in the mounting groove (18). One end of the rotating spring (19) is connected to the mounting groove (18), and the other end is connected to the rotating shaft (16). A connecting plate (21) is provided at the outer end of the ball seal (5), and a support arm (22) is provided on the connecting plate (21) to cooperate with the flap (17).

3. The switching valve for an automotive suspension system according to claim 2, characterized in that: The free end of the support arm (22) is provided with a roller (23) that cooperates with the flap (17).

4. The switching valve for an automotive suspension system according to claim 3, characterized in that: The inner wall of the channel near the dustproof component is provided with a thread for connection to the external connector (2), and grooves (24) with a diameter larger than the inner diameter of the channel are opened at both ends of the valve body (1), and a third O-ring (25) is provided in the groove (24).

5. The on-off valve for use in an automotive suspension system according to claim 4, characterized by ； The locking bar (4) is hexagonal.

Images