Patent ID: 11865893
Assignee: SHANGHAI LINGHUO TRADING CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 13:
14. The support device for spring according to claim 11, wherein the second support unit comprises an arc-shaped third contact surface, the connection unit comprises a cover plate capable of covering the third contact surface, and the cover plate comprises an arc-shaped fourth contact surface, the first angle adjustment structure and the second angle adjustment are provided on the third contact surface and the fourth contact surface respectively, with a longitudinal length of the second angle adjustment structure being greater than a longitudinal length of the first angle adjustment structure, one of the first angle adjustment structure and the second angle adjustment structure is provided with a plurality of protrusions, the other one of the first angle adjustment structure and the second angle adjustment structure is provided with a plurality of depressions, the protrusions each is capable of engaging with several different depressions.