Damping type grounding-preventing shock absorber and motor tricycle

Abstract

The invention discloses a damping type grounding-preventing shock absorber and a motor tricycle. The damping type grounding-preventing shock absorber comprises an inner barrel, an outer barrel and a shock absorbing main spring. The shock absorbing main spring sleeves the inner barrel and the outer barrel simultaneously. The damping type grounding-preventing shock absorber also comprises a grounding-preventing damping part mounted at the bottom in the outer barrel bearing down on the inner barrel, and when the inner barrel is sleeved downward on the grounding-preventing damping part, a gap exists between the inner barrel and the grounding-preventing damping part transversely; the inner barrel is sleeved in the outer barrel through a piston, a lubricating hole is formed in a position, abovethe piston, of the inner barrel, a space opposite to the downward piston in the outer barrel is filled with oil, and the space communicates to the inner barrel. The shock absorber adopts the grounding-preventing damping part arranged at the bottom of the outer barrel. In the process that the inner barrel moves downward and is sleeved on the grounding-preventing damping part, hydraulic oil in the outer barrel enters into the inner barrel only through the gap to form an effective compressive damping force to prevent grounding effectively. Meanwhile, the hydraulic oil is pressed to flow above thepiston through the lubricating hole, so that the piston is lubricated favorably and a stress concentration phenomenon of the piston is improved.

Description

technical field [0001] The invention belongs to the technical field of motor vehicles, and relates to a damping type anti-bottoming shock absorber and a three-wheeled motorcycle. Background technique [0002] Shock absorber is a necessary part of a motor vehicle. The structure affects the handling and comfort of the vehicle. Whether the performance is stable or not is directly related to the safety, reliability, comfort and handling of the vehicle. Existing shock absorbers generally include an inner cylinder, an outer cylinder, and a damping spring; the inner cylinder is generally sleeved on the outer cylinder through a piston, and the space opposite the outer cylinder and the piston is filled with hydraulic oil. When the inner cylinder reciprocates, the hydraulic oil Flow is formed in this space and in the inner cylinder, which plays the role of lubrication and limited liquid damping. In fact, because the diameter difference between the inner cylinder and the outer cylinder...

AI Technical Summary

Problems solved by technology

Existing shock absorbers generally include an inner cylinder, an outer cylinder, and a damping spring; the inner cylinder is generally sleeved on the outer cylinder through a piston, and the space opposite the outer cylinder and the piston is filled with hydraulic oil. When the inner cylinder reciprocates, the hydraulic oil Flow is formed in this space and in the inner cylinder, which plays the role of lubrication and limited liquid damping. In fact, because the diameter difference between the inner cylinder and the outer cylinder is not large, the damping effect is also extremely limited, and no effective compression damping force can be formed.

[0003] In the prior art, in order to save the overall cost of the three-wheeled motorcycle, one of the front shock absorbers adopts the aforementioned structure. The shock absorber of this structure has a better effect of restoring damping, but it cannot form effective compression damping. Therefore, in On slightly larger uneven roads, the shock absorber will bottom out, seriously affecting the handling, comfort, safety and reliability of the vehicle

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