Fork telescopic rear guard

Abstract

The invention discloses a forked telescopic type rear protective device. The rear protective device comprises a pneumatic cylinder, a support and a rear bumper, wherein the pneumatic cylinder is fixed on a rear wall of a car frame; the lower end of the pneumatic cylinder is connected with a drive rod; the drive rod is driven to move up and down by the pneumatic cylinder; a first slider and a second slider are respectively arranged at the two sides of the lower end of the drive rod; two support arms of the support are pivotally connected with each other through a fixed shaft which is fixed on the rear wall of the car frame; the first slider at the lower end of the drive rod is inlayed in a first chute and can slide in the first chute; the second slider at the lower end of the drive rod is inlayed in a second chute and can slide in the second chute; the lower ends of the two support arms of the support are respectively provided with a third slider and a fourth slider; a third chute and a fourth chute are formed in the rear side of the rear bumper. The rear protective device has the beneficial effects of being simple in structure, convenient to install, low in cost, easy to marketize, and safe and reliable in work; besides, the movement of the pneumatic cylinder is accurate and high in precision.

Description

technical field [0001] The patent of the present invention relates to a vehicle rear protection device, in particular to a fork-shaped telescopic rear protection device. Background technique [0002] At present, the research on the rear protection device of heavy vehicles at home and abroad is mainly based on purely mechanical rear protection devices. Since the rear protection distance of heavy vehicles is relatively high from the ground, when vehicles such as cars or SUVs collide with heavy vehicles, it is easy to cause Vehicles such as cars or SUVs "drilled" into the rear overhang of heavy vehicles, causing great casualties. At present, the heavy vehicles with adjustable rear protection device, although the rear protection device has reduced the ground clearance, but due to the adjustable device, the problem of low strength has occurred. [0003] The use of electromechanical integration technology can not only ensure the safety of the rear vehicle in the event of a collis...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a fork-shaped telescopic rear protection device in order to solve many problems existing in the use of the existing purely mechanical and mechatronic heavy-duty vehicle rear protection devices.

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