Slow-back type multifunction movable trail guardrail

Abstract

The invention discloses a slow-back type multifunction movable trail guardrail which comprises a movable lower baffle, a cylinder slow-back device and a movable enhanced plate. The slow-back type multifunction movable trail guardrail is good in buffer effect. The slow-back type multifunction movable trail guardrail not only blocks a rear-end vehicle from drilling, but also can effectively absorb collision energy and buffer impact, and protection effect is obvious. When a vehicle travels and encounters road condition such as large bump and a lower slope, an object meets a tail guard rail, and the movable lower baffle can rotate backwards under the effect of external force to avoid rigid collision. When the vehicle smoothly passes through an obstacle, the movable lower baffle slows to reset under the effect of spring tension inside a cylinder and a cylinder double-way one-way valve, and original protection function is recovered again. The movable enhanced plate is arranged on a guide rail groove of a fixed support, and when the movable baffle rotates backwards, a connecting rod drives the movable enhanced plate to rise to avoid colliding with the obstacle. The movable lower baffle can rotate and rise as a pedal to facilitate personnel to get on the vehicle and operate. The slow-back type multifunction movable trail guardrail is simple in structure, easy to manufacture, low in cost, and suitable for popularization and application.

Description

technical field [0001] The invention relates to a tailgate for a vehicle. Background technique [0002] According to relevant national regulations, large vehicles must be equipped with a rear protective device. The height and width of the protective device have specific requirements, so that it can not only prevent rear-end vehicles from entering, but also absorb collision energy and ease the impact. The protective effect reduces the damage caused by accidents such as rear-end collisions. [0003] Most of the existing vehicle rear protection devices adopt an integral fixed structure, and the parts of the rear protection device are fixed by welding. The distance between the rear protection device and the ground is fixed. Due to the limited distance from the ground, the vehicle will When you often encounter obstacles or road conditions such as up and down slopes, the rear protective device of the vehicle may have a hard collision with it when leaving the obstacle, and the rea...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing vehicle rear protection devices adopt an integral fixed structure, and the parts of the rear protection device are fixed by welding. The distance between the rear protection device and the ground is fixed. Due to the limited distance from the ground, the vehicle will Often encountering obstacles or road conditions such as up and down slopes, the rear protective device of the vehicle may have a hard collision with it when leaving the obstacle, and the rear protective device may be damaged, which affects the trafficability and driving safety of the vehicle

[0004] In addition, the existing large vehicles such as semi-trailers have a relatively high body, and generally do not have pedals. When the staff needs to get on the vehicle for work, they often need to climb on the vehicle from the rear wheels, and sometimes need to cross the side rails, which is not humane. change

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