Double-column lift with holding and locking type tray

Abstract

The invention relates to a double-column lift with a holding and locking type tray. The double-column lift comprises two vertical columns. Lead screws are arranged in the vertical columns. Sleeves are arranged on the lead screws in a matched mode. Bearing arms are fixed to the inner side faces of the sleeves. Lifting arms are hinged to the two ends of each bearing arm respectively. The other end of each lifting arm is communicated with a rotary shaft. A C-shaped frame with an upward opening is fixed to the upper end of each rotary shaft. S-shaped plates are hinged to the upper portions of the two upwards-tilting sides of each C-shaped frame respectively, and the upper portions are hinged to the middles of the S-shaped plates. The portions, located on the inner sides of the C-shaped frames, of the S-shaped plates are bent downwards, and the portions, located on the outer sides of the C-shaped frames, of the S-shaped plates are bent upwards. The C-shaped frames adapting to the shapes of longerons on the sides of an automobile chassis are adopted as supporting structures, the surrounding degree to an automobile is increased, the situation that the automobile slides laterally on lifting arms can be effectively avoided, lifting safety is greatly improved, the automobile chassis is further protected, and the supporting stability is improved.

Description

technical field [0001] The invention relates to the technical field of lifting equipment, in particular to a double-column lift with a locking tray. 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. The double-column car lift can save a lot of ground space while lifting the car in the air, which is convenient for ground operations. However, on the lifting arm of the double-column car lift, a circular block that can rotate relative to the lifting arm is usually used as a pad that contacts the car. This pad is attached with rubber to increase friction. However, when the car When there is oil or water on the bottom plate of the car, the rubber pad not only cannot increase the friction force, but also increases the possibility of sideslip between the car cha...

AI Technical Summary

Problems solved by technology

However, on the lifting arm of the double-column car lift, a circular block that can rotate relative to the lifting arm is usually used as a pad that contacts the car. This pad is attached with rubber to increase friction. However, when the car When there is oil or water on the bottom plate of the car, the rubber pad not only cannot increase the friction force, but also increases the possibility of sideslip between the car chassis and the rubber due to the lipophilic property of the rubber, which is not conducive to the support of the lift. Safety

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