Today, guanhang mainly takes you to understand the structure and working principle of scissors jack.

The mechanical principle of the scissor jack is the same as that of the ordinary screw jack. It also relies on the screw drive to increase the torque to complete the lifting of heavy objects. The difference is that the screw rod of the scissor jack is horizontal. It rotates and drives to the two ends of the four side support through the screw thread by rotating the handle rod. By compressing the distance between the two top points, the scissor jack completes the structural change, so as to achieve the purpose of lifting.

The structure of the scissor jack is relatively simple, and the lifting tonnage is not very large, but the current operating condition is clear at a glance during operation, and effective adjustment can be made according to temporary emergencies during this process. Therefore, it still has its place in modern life. When you travel, the car is a must-have choice.