A three-arm double-column lift

Abstract

The invention relates to a three-supporting-arm type double-column lift. The three-supporting-arm type double-column lift comprises two stand columns. Motors are arranged at the lower ends of the stand columns correspondingly. Lead screws driven by the corresponding motors through bevel gears are arranged in the stand columns correspondingly. A sleeve is arranged on each lead screw in a matched manner. A longitudinally-placed bearing arm is fixed to the inner side face of each sleeve. Lifting arms are installed at the front end and the rear end of each bearing arm correspondingly in a hinged manner. Positioning arms are installed at the centers of the bearing arms in a hinged manner. Every two lifting arms on the same side are controlled through the corresponding positioning arm, the positioning arms are held tightly on a longitudinal beam of a vehicle chassis through structures with C-shaped frames, the supporting safety is ensured, and the vehicle chassis is prevented from easily falling off from the lifting arms. The lifting arms are connected with the positioning arms on the corresponding sides in a thread connection manner, a triangular stable structure is formed, and the angle between the lifting arms and the positioning arms can be rapidly regulated by rotating the double-end internal thread sleeves while stable supporting is provided for automobiles.

Description

technical field [0001] The invention relates to the technical field of gasoline engine equipment, in particular to a three-arm type double-column lift. Background technique [0002] Double-column car lift is a special mechanical lifting equipment commonly used in car repair and maintenance units. Double-column lifters are the main types of lifts and are widely used in the repair and maintenance of small cars such as cars. [0003] The column car lift can save a lot of ground space while lifting the car in the air, which is convenient for ground operations. However, the lifting arms of the double-column car lift are all independent structures. When using it, each lifting arm needs to be adjusted separately, that is, it needs to be adjusted four times, which greatly reduces the work efficiency and is prone to insufficient support. In a stable situation, the four pallets cannot be correctly supported in the correct position of the chassis, which brings hidden dangers to the su...

AI Technical Summary

Problems solved by technology

However, the lifting arms of the double-column car lift are all independent structures. When using it, each lifting arm needs to be adjusted separately, that is, it needs to be adjusted four times, which greatly reduces the work efficiency and is prone to insufficient support. In the stable situation, the four pallets cannot be correctly supported in the correct position of the chassis, which brings hidden dangers to the safety of the support.

[0004] The trays used in the prior art are all made of rubber materials. However, rubber is lipophilic. When there are oil stains or water stains on the chassis, it is easy to cause the tray to slip and affect the stability of the support.

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