What are the use methods of electric hydraulic jacks?

1. Rack jack is the most common form of Jack in household cars. Manpower drives the rack to lift weights through lever and gear. This kind of Jack has two shapes, one is herringbone and the other is rhombus. Advantages: light weight, small folded volume, good storage. Disadvantage: The support is not very strong, the weight of the support is limited, generally only used for household cars in the first ton.

 

2. The screw jack supports heavy objects by the self-locking action of threads. Advantages: The Jack has simple structure, reliable life and large load-bearing capacity. Disadvantage: But the weight of this kind of Jack is generally heavy, and the transmission efficiency is relatively low, and the lift is slow. Some spiral jacks are rotated directly with original wrenches.

 

3. Hydraulic jack lifting by hydraulic pressure is time-saving and labor-saving. The principle is to manually press the oil in the oil storage chamber into the cylinder through a one-way valve to lift weights. Advantages: The speed of lifting and descending is very fast, and the maximum load-bearing capacity is generally large, about 3 tons. It can be seen in most garages. Disadvantage: But the size of this kind of Jack is much larger than the above two kinds of jacks, which is inconvenient to carry, so it will not appear in the toolbox of household cars basically, and can only be purchased independently if necessary.

 

4. The inflatable jack is to inflate the air bag by using the exhaust gas of the vehicle. Generally, the maximum support weight of this kind of Jack is about 4 tons, which is suitable for rescue or self-rescue and extrication of off-road vehicles under more difficult conditions. The domestic auto parts mall has a sale price of about 500 yuan. Usually through the exhaust gas of the car to inflate, to achieve the purpose of support.