car roof

Abstract

The invention discloses a top cover for a vehicle. The top cover comprises at least one cover plate in rotating matching with corresponding driving arms, wherein each cover plate is respectively provided with a buffer spring and a buffer rope, one end of the buffer rope is fixedly arranged on the cover plate, the other end of the buffer rope goes around a first buffer pulley arranged on the driving arm to be connected with one end of the buffer spring, the other end of the buffer spring is fixedly arranged on the cover plate, and the buffer spring can be lengthened along with the opening of the cover plate. The top cover for the vehicle also comprises a second buffer pulley, the second buffer pulley is fixedly arranged on a vehicle compartment cross beam, the buffer rope is arranged in a way of going around the second buffer pulley for at least one circle, a tensioning device is arranged on a pre-tightening steel cable, and the tensioning device exerts a prestress on a top beam through the pre-tightening steel cable so that the middle part of the top beam is upwards raised. The top cover has the advantages that multiple fulcrums are adopted for simultaneously bearing the weight of the top cover, the swinging of the top cover can be effectively reduced when the top cover is opened, the prestress is exerted on the cross beam of the top cover, and the deformation of the top cover is prevented.

Description

technical field [0001] The invention relates to the technical field of vehicle parts, in particular to a vehicle top cover. Background technique [0002] With the development of the economy, there are more and more road transport vehicles, followed by all kinds of pollution caused by the transport vehicles during driving, especially the trucks that transport the muck without the roof of the compartment due to spilling, dust, dripping, etc. Sewage, etc. cause more serious road surface pollution. On the one hand, the road is full of dust, which affects the health of traffic and pedestrians. What's more, due to the pollution on the road surface, the tires of trucks running at high speed roll over the pollutant particles on the road surface, instantly generating high pressure. When the pressure is applied, it will explode in a short time and fission to produce a large amount of fine dust, which diffuses into the air, floats for a long time and cannot fall back to the ground to p...

AI Technical Summary

Problems solved by technology

However, in order to obtain a high-strength roof, the cover is generally made of metal, and the mass is relatively large. When the cover is unscrewed from the roof and slides down, the pulling force on the driving arm increases sharply, especially when the center of gravity of the cover leaves the car. The lower part of the cover plate falls freely, and the upper part is still fixed on the driving arm. The cover plate will shake violently, seriously affecting the safety of people around.

If the metal cover plate is installed on a transport vehicle with a long carriage, there will be another problem: when the cover plate falls, the stress is concentrated on the upper cover plate beam, especially the middle part of the cover plate beam is the most stressed, and it is difficult to Bear the weight of the cover itself, easy to bend downwards and deform

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