Vehicle automatic wheel block anti-rolling device

Abstract

The invention relates to the technical field of vehicle anti-rolling devices, and discloses a vehicle automatic wheel block anti-rolling device, which includes a bracket, a wheel block unit, an upper driving piston, a lower driving piston and a hydraulic system; the bracket is fixed on the vehicle chassis; The wheel chock unit includes a lower casing, an upper connecting rod and a lower connecting rod; the two ends of the upper connecting rod and the lower connecting rod are respectively hingedly connected with the lower casing and a bracket to form a hinge four-bar mechanism; the upper driving piston is fixedly installed on the bracket, and the upper driving piston is fixed on the bracket. The piston rod of the driving piston is hingedly connected with the upper connecting rod; the lower driving piston is installed in the lowering casing, and the piston rod of the lower driving piston is arranged vertically downward; the hydraulic system is used to control the upper driving piston and the lower driving piston. The invention can avoid the problem of slipping of special vehicles at the airport, thereby avoiding the occurrence of safety accidents caused by the slipping of vehicles.

Description

technical field [0001] The invention relates to the technical field of anti-rolling devices for vehicles, in particular to an automatic wheel block anti-rolling device for vehicles. Background technique [0002] In the airport, there are often a variety of special vehicles operating on the apron. The common special vehicles include ferry vehicles, passenger ladder vehicles, luggage tractors, refueling vehicles, etc. For airports, the safety of aircraft on the ramp is the first priority. If special vehicles slip during parking operations, it may lead to safety accidents. Therefore, in an environment that requires a variety of special vehicles to operate, in order to prevent vehicles from rolling and avoid safety accidents, airport staff generally use anti-rolling devices to make special vehicles immovable. [0003] At present, the common anti-rolling device, one is fixed, by installing the anti-rolling device at a fixed position on the ground, each parking space is equipped ...

AI Technical Summary

Problems solved by technology

For the iron shoe anti-rolling device, it is generally applied to the special scene of the track at present. It relies on the air pressure to clamp the iron shoe between the wheel and the track. However, if it is used on the special vehicle of the airport, the vehicle may appear The slippery trend increases the pressure of the wheels on the iron shoes, making it difficult to put away the iron shoes

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