Your car is equipped with a kind of jack?

Common lorry jack There are two main types, one is rack jacks, one is a screw jack. These two types of jack common characteristic is small, it does not take place, suitable for placement in the boot.

A rack jack

This jack is the most common vehicle tools. Rack jacks three parts rack gear, rotation of the bodies, it relies on rotation of the rack rotating mechanism, hold the jack support portion, thereby lifting the vehicle. Its volume is not large, better storage. Its shortcomings are obvious: not support the weight too much. Rack jacks, there are two structures, namely, herringbone structure and diamond structure.

1, herringbone structure

This structure rack jacks lower load ratio, and therefore a small car which is primarily provided. This herringbone Jack looked shaky for use in small cars but also people who do not quite trust ......

2, diamond-shaped structure

Currently rack jacks most family cars are equipped with such a structure, the support structure is more than a human-shaped jack solid and reliable. Small cars to SUV, the car is equipped with diamond-shaped rack jacks structures are the same, but are different materials and sizes.

Second, the screw jack

Screw jack is relying on its own self-locking thread structure to support the vehicle, which support the weight much greater than the rack jacks. However, this jack lifting efficiency is relatively slow, but down fast, you need to pay attention to safety when used.