Long-service-life bottom valve seat for automobile shock absorber

Abstract

The utility model relates to the technical field of bottom valve seats for shock absorbers, and discloses a long-service-life bottom valve seat for an automobile shock absorber, which comprises a valve seat, the valve seat comprises a shell and a connecting pipe, a pressure reduction structure is arranged on the valve seat, and a sealing assembly is arranged on the valve seat. The lead screw drives the rack to move through the threaded block so as to control the gear to rotate, the gear drives the pressure reducing plate to rotate through the second rotating shaft, the speed and pressure of oil are finely controlled, the ideal pressure reducing effect is achieved, the speed of high-pressure oil is effectively controlled, and the flow speed and pressure are reduced before the high-pressure oil enters the valve plate. Therefore, direct impact and abrasion to the valve plate are reduced, the service life of the valve plate is prolonged, the maintenance cost is reduced, the pressure reduction plate is adjusted more smoothly, the reverse force caused by oil pressure change to the valve plate is reduced, and the torque requirement during operation is further reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of bottom valve seats for shock absorbers, and in particular to a bottom valve seat for a high-life automotive shock absorber. Background Technology

[0002] The bottom valve seat of an automotive shock absorber is one of the key components of the shock absorber, playing a crucial role in its performance. Its function is to control the flow of damping oil between the working cylinder and the reservoir when the shock absorber is working, generating damping force to suppress vibrations between the vehicle body and the axle or between the wheels and the vehicle body, thereby improving the vehicle's ride smoothness, comfort, safety, steering maneuverability, and passability.

[0003] Existing bottom valve seats may lack a sophisticated pressure-reducing structure, making it impossible to precisely control the speed and pressure of the oil. This may result in the oil still having a high flow rate and pressure when entering the valve plate, causing significant impact and wear on the valve plate, affecting the service life of the valve plate and the performance stability of the shock absorber. To address this, we propose a bottom valve seat for high-life automotive shock absorbers. Utility Model Content

[0004] The purpose of this invention is to provide a bottom valve seat for a high-life automotive shock absorber to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bottom valve seat for a high-life automotive shock absorber, comprising a valve seat, the valve seat including a housing and a connecting pipe, a pressure-reducing structure provided on the valve seat, the pressure-reducing structure including a support frame and a second rotating shaft, the support frame rotatably mounting a lead screw via a fixed seat, a second motor fixedly mounted on the outside of the fixed seat, the motor shaft of the second motor being fixedly connected to one end of the lead screw, the lead screw being fixedly mounted with a rack via a threaded block, the side wall of the support frame being slidably connected to the rack via a limiting block, a gear fixedly mounted on the top end of the second rotating shaft, the gear meshing with the rack, a pressure-reducing plate fixedly mounted on the second rotating shaft, and a sealing assembly provided on the valve seat.

[0006] As a preferred embodiment, the valve seat includes a first rotating shaft, which is rotatably mounted inside the housing. A valve plate is fixedly mounted on the first rotating shaft. A first motor is fixedly mounted on the outer top of the housing. The motor shaft of the first motor is fixedly connected to the top of the first rotating shaft. The connecting pipes are respectively fixedly mounted on both ends of the housing.

[0007] As a preferred embodiment, the support frame is fixedly installed at the top of the connecting pipe, the fixed seats are respectively fixedly installed on both sides of the top of the support frame, the lead screw is rotatably installed between the fixed seats, the threaded block is threadedly installed on the lead screw, the limiting block is fixedly installed on the side wall of the support frame, the rack is slidably installed on the limiting block, and the rack is fixedly connected to the threaded block.

[0008] As a preferred embodiment, the second rotating shaft is rotatably installed inside the connecting pipe, the top end of the second rotating shaft extends through the connecting pipe to the top end of the connecting pipe, the gear is fixedly installed at the top end of the second rotating shaft, and the pressure reducing plate is provided with an oil permeable hole.

[0009] As a preferred embodiment, the sealing assembly includes a waterproof gasket, a sealing cylinder, and a flange. The waterproof gasket is fixedly installed on the inner wall of the connecting pipe, the sealing cylinder is fixedly installed inside the waterproof gasket, and the flange is fixedly installed on the outer wall of the connecting pipe.

[0010] As a preferred embodiment, one end of the waterproof gasket extends to the outside of the connecting pipe, and one end of the sealing cylinder extends to the outside of the connecting pipe, wherein the length of the sealing cylinder is longer than that of the waterproof gasket.

[0011] The technical effects and advantages of this utility model are as follows:

[0012] 1. Through the designed pressure-reducing structure, the lead screw drives the rack to move through the threaded block, thereby controlling the rotation of the gear. The gear drives the pressure-reducing plate to rotate through the second rotating shaft, precisely controlling the speed and pressure of the oil to achieve the ideal pressure reduction effect. The speed of the high-pressure oil is effectively controlled, and the flow rate and pressure have been reduced before entering the valve plate, thereby reducing the direct impact and wear on the valve plate. This helps to extend the service life of the valve plate, reduce maintenance costs, make the adjustment of the pressure-reducing plate smoother, reduce the reverse force caused by oil pressure changes on the valve plate, and further reduce the torque requirements during operation.

[0013] 2. The sealing components, including waterproof gaskets and sealing cylinders, provide waterproofing at the connection between the inlet and outlet pipes. The design of the waterproof gaskets and sealing cylinders provides additional sealing protection at the connection between the inlet and outlet pipes, effectively preventing oil leakage from the connection. The waterproof gaskets act as fillers at the connection. When the sealing components need to be replaced or inspected, maintenance can be completed with simple tools without replacing the entire connector, reducing maintenance costs and workload. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the valve seat of this utility model;

[0016] Figure 3 This is a schematic diagram of the pressure-reducing structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the sealing component of this utility model.

[0018] In the diagram: 1. Valve seat; 11. Housing; 12. First rotating shaft; 13. Valve plate; 14. First motor; 15. Connecting pipe; 2. Pressure reducing structure; 201. Support frame; 202. Fixed seat; 203. Lead screw; 204. Second motor; 205. Threaded block; 206. Limiting block; 207. Rack; 208. Second rotating shaft; 209. Gear; 210. Pressure reducing plate; 211. Oil vent; 3. Sealing assembly; 31. Waterproof gasket; 32. Sealing cylinder; 33. Flange. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Example 1:

[0021] Please see the appendix Figure 1 - Appendix Figure 4 A bottom valve seat for a high-life automotive shock absorber includes a valve seat 1. The valve seat 1 includes a housing 11 and a first rotating shaft 12. The first rotating shaft 12 is rotatably mounted inside the housing 11, and the top end of the first rotating shaft 12 extends through the housing 11 to the top end of the housing 11. A valve plate 13 is fixedly mounted on the first rotating shaft 12. The valve plate 13 is inside the housing 11 and seals the internal cavity of the housing 11. A first motor 14 is fixedly mounted on the top end of the outer side of the housing 11. The motor shaft of the first motor 14 is fixedly connected to the top end of the first rotating shaft 12. Connecting pipes 15 are fixedly mounted on both ends of the housing 11.

[0022] A pressure-reducing structure 2 is provided on the valve seat 1. The pressure-reducing structure 2 includes a support frame 201 and a second rotating shaft 208. The support frame 201 is fixedly installed on the top end of the connecting pipe 15. Fixed seats 202 are fixedly installed on both sides of the top end of the support frame 201. A lead screw 203 is rotatably installed between the fixed seats 202. A second motor 204 is fixedly installed on the outside of the fixed seats 202. The motor shaft of the second motor 204 is fixedly connected to one end of the lead screw 203. A threaded block 205 is threaded onto the lead screw 203. The support frame 201 is located on the side of the valve seat 1. A wall-mounted limiting block 206 is fixedly installed, and a rack 207 is slidably installed on the limiting block 206. The rack 207 is fixedly connected to the threaded block 205. A second rotating shaft 208 is rotatably installed inside the connecting pipe 15. The top end of the second rotating shaft 208 passes through the connecting pipe 15 and extends to the top end of the connecting pipe 15. A gear 209 is fixedly installed on the top end of the second rotating shaft 208. The gear 209 meshes with the rack 207. A pressure reducing plate 210 is fixedly installed on the second rotating shaft 208. An oil permeable hole 211 is provided on the pressure reducing plate 210.

[0023] Specifically, in pressure reducing structure 2, the lead screw 203 drives the threaded block 205, which in turn drives the rack 207 to move, causing the gear 209 to rotate. The gear 209 drives the pressure reducing plate 210 to rotate via the second rotating shaft 208, thereby precisely controlling the oil speed and pressure to achieve the ideal pressure reducing effect. Before the high-pressure oil enters the valve plate 13, the flow rate and pressure are effectively reduced, reducing direct impact and wear, extending service life, reducing maintenance costs, and making the adjustment of the pressure reducing plate 210 smoother, reducing the operating torque requirement.

[0024] Example 2:

[0025] Please see the appendix Figure 1 and attached Figure 4 Furthermore, based on Embodiment 1, a sealing assembly 3 is provided on the valve seat 1. The sealing assembly 3 includes a waterproof gasket 31, a sealing cylinder 32, and a flange 33. The waterproof gasket 31 is fixedly installed on the inner wall of the connecting pipe 15, and one end of the waterproof gasket 31 extends to the outside of the connecting pipe 15. The sealing cylinder 32 is fixedly installed inside the waterproof gasket 31, and one end of the sealing cylinder 32 extends to the outside of the connecting pipe 15. At the same time, the length of the sealing cylinder 32 is longer than that of the waterproof gasket 31. The flange 33 is fixedly installed on the outer wall of the connecting pipe 15.

[0026] Specifically, in the sealing assembly 3, the waterproof gasket 31 and the sealing cylinder 32 are responsible for waterproofing the connection between the oil inlet pipe and the oil outlet pipe. Their design can provide additional sealing protection at the connection, effectively preventing oil leakage. The waterproof gasket 31 plays a filling role. When the sealing assembly 3 needs to be replaced or inspected, maintenance can be completed with simple tools without replacing the entire connector, reducing maintenance costs and workload.

[0027] Working principle of this utility model: This utility model is a bottom valve seat for a high-life automotive shock absorber. The oil inlet pipe and oil outlet pipe are connected to the connecting pipe 15 via flanges 33. Waterproof gaskets 31 and sealing cylinders 32 seal the joints between the oil inlet pipe, oil outlet pipe, and connecting pipe 15 to prevent oil leakage. Water is introduced into the oil inlet pipe, and the second motor 204 is started. The motor shaft of the second motor 204 drives the lead screw 203 to rotate. The lead screw 203 drives the rack 207 to slide in the limiting block 206 via the threaded block 205. Due to the meshing relationship between the rack 207 and the gear 209, the rack 207 drives the gear 209 to rotate, allowing water to flow through the inlet pipe. The gear 209 drives the second shaft 208 to rotate, which in turn drives the pressure reducing plate 210 to rotate. The angle of rotation of the pressure reducing plate 210 is controlled. When oil impacts the pressure reducing plate 210, the oil speed is reduced. By positioning the pressure reducing plate 210 at different angles, the oil is controlled at different speeds to prevent high-speed oil from directly impacting the valve plate 13 and reduce the wear of the valve plate 13. The first motor 14 is started, and the motor shaft of the first motor 14 drives the first shaft 12 to rotate. The first shaft 12 drives the valve plate 13 to rotate. The rotation of the valve plate 13 connects the internal parts of the outer casing 11, allowing the oil to flow smoothly into the oil outlet pipe.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bottom valve seat for a high-life automotive shock absorber, comprising a valve seat (1), the valve seat (1) comprising a housing (11) and a connecting pipe (15), characterized in that: The valve seat (1) is provided with a pressure reducing structure (2), which includes a support frame (201) and a second rotating shaft (208). The support frame (201) is rotatably mounted with a lead screw (203) via a fixed seat (202). A second motor (204) is fixedly mounted on the outside of the fixed seat (202). The motor shaft of the second motor (204) is fixedly connected to one end of the lead screw (203). The lead screw (203) is fixedly mounted with a rack (207) via a threaded block (205). The side wall of the support frame (201) is slidably connected to the rack (207) via a limiting block (206). A gear (209) is fixedly mounted on the top end of the second rotating shaft (208). The gear (209) meshes with the rack (207). A pressure reducing plate (210) is fixedly mounted on the second rotating shaft (208). A sealing assembly (3) is provided on the valve seat (1).

2. The bottom valve seat for a high-life automotive shock absorber according to claim 1, characterized in that: The valve seat (1) includes a first rotating shaft (12), which is rotatably mounted inside the housing (11). A valve plate (13) is fixedly mounted on the first rotating shaft (12). A first motor (14) is fixedly mounted on the outer top of the housing (11). The motor shaft of the first motor (14) is fixedly connected to the top of the first rotating shaft (12). The connecting pipe (15) is fixedly mounted on both ends of the housing (11).

3. The bottom valve seat for a high-life automotive shock absorber according to claim 1, characterized in that: The support frame (201) is fixedly installed at the top of the connecting pipe (15). The fixed seats (202) are respectively fixedly installed on both sides of the top of the support frame (201). The lead screw (203) is rotatably installed between the fixed seats (202). The threaded block (205) is threadedly installed on the lead screw (203). The limiting block (206) is fixedly installed on the side wall of the support frame (201). The rack (207) is slidably installed on the limiting block (206). The rack (207) is fixedly connected to the threaded block (205).

4. The bottom valve seat for a high-life automotive shock absorber according to claim 1, characterized in that: The second rotating shaft (208) is rotatably installed inside the connecting pipe (15). The top end of the second rotating shaft (208) extends through the connecting pipe (15) to the top end of the connecting pipe (15). The gear (209) is fixedly installed on the top end of the second rotating shaft (208). The pressure reducing plate (210) is provided with an oil permeable hole (211).

5. The bottom valve seat for a high-life automotive shock absorber according to claim 1, characterized in that: The sealing assembly (3) includes a waterproof gasket (31), a sealing cylinder (32), and a flange (33). The waterproof gasket (31) is fixedly installed on the inner wall of the connecting pipe (15), the sealing cylinder (32) is fixedly installed inside the waterproof gasket (31), and the flange (33) is fixedly installed on the outer wall of the connecting pipe (15).

6. The bottom valve seat for a high-life automotive shock absorber according to claim 5, characterized in that: One end of the waterproof gasket (31) extends to the outside of the connecting pipe (15), and one end of the sealing cylinder (32) extends to the outside of the connecting pipe (15). The length of the sealing cylinder (32) is longer than that of the waterproof gasket (31).

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