An oil liquid compensation structure for a shock absorber, a shock absorber assembly, and an air spring assembly

Abstract

The utility model discloses a shock absorber oil compensation structure, shock absorber assembly, air spring assembly, including link loop assembly, link loop assembly includes the upper cover plate and lower cover plate of interference fit, is equipped with the cavity between upper cover plate and lower cover plate, and the one end of lower cover plate is elastically connected with compensation valve piece through compensation spring to upper cover plate, and the one end of upper cover plate is equipped with inner valve line and outer valve line to lower cover plate, and compensation valve piece and inner valve line and outer valve line are all line contact, and upper cover plate top is equipped with the limit ring. In the utility model, through with the inner valve line and outer valve line of compensation valve piece and setting all line contact, can improve the sealing effect, through being equipped with the limit ring in upper cover plate top, can prevent oil leakage when limit ring and electromagnetic valve bottom cooperation.

Claims

1. An oil defi cit compensating structure for a shock absorber comprising a link ring assembly including an upper cover plate and a lower cover plate which are interference fitted, a cavity being provided between the upper cover plate and the lower cover plate, characterized in that, The end of the lower cover plate facing the upper cover plate is elastically connected to a compensating valve plate via a compensating spring. The end of the upper cover plate facing the lower cover plate is provided with an inner valve line and an outer valve line. The compensating valve plate is in line contact with both the inner and outer valve lines. A limiting ring is provided at the top of the upper cover plate.

2. The hydraulic fluid compensating structure for a shock absorber according to claim 1, wherein The lower cover plate has a boss at the end facing the upper cover plate, and the compensating spring and compensating valve plate are located on the outside of the boss.

3. The hydraulic fluid compensating structure for a shock absorber according to claim 1, wherein Both the upper and lower cover plates have oil passages that communicate with the cavity. The upper cover plate also has at least one compensation oil passage that communicates with the cavity, and the oil passage on the lower cover plate communicates with the restoration cavity.

4. The hydraulic fluid compensating structure for a shock absorber according to claim 1, wherein The upper cover plate and the lower cover plate are coaxial and have the same diameter, and their circumferential edges are located in the same vertical plane.

5. The hydraulic fluid compensating structure for a shock absorber according to claim 3, wherein There are multiple compensation oil holes, and the center of the cover plate below the multiple compensation oil holes is distributed in a ring shape at the midpoint.

6. The hydraulic fluid compensating structure for a shock absorber according to claim 1, wherein The bottom of the lower cover plate has an O-ring sealing groove formed.

7. The hydraulic fluid compensating structure for a shock absorber according to claim 2, wherein The boss is a frustum structure with a larger top and a smaller bottom.

8. A shock absorber assembly characterized by, The device includes a hydraulic compensation structure for a shock absorber as described in any one of claims 1-7, a solenoid valve, a solenoid valve seat, and an intermediate cylinder. A connecting ring assembly is snapped into the solenoid valve seat, and the solenoid valve is threaded onto the end of the connecting ring assembly facing away from the solenoid valve seat. The bottom of the solenoid valve has an annular protrusion, the size of which is smaller than that of the limiting ring. One end of the connecting ring assembly passes through the solenoid valve seat and is connected to the intermediate cylinder. The intermediate cylinder has an installation groove that is compatible with the connecting ring assembly.

9. A shock absorber assembly according to claim 8, wherein, The inner wall of the solenoid valve seat is provided with two baffles, and a mounting hole that matches the connecting ring assembly is formed between the two baffles. The lower cover plate is provided with a step that matches the mounting hole.

10. An air spring assembly characterized by, Includes the shock absorber assembly as described in claim 8 or 9.

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