A jack is a common tool used to lift heavy objects or increase strength.
Time:
2024-02-03
A jack is a common tool used to lift heavy objects or increase strength. It usually consists of a fixed base, a movable piston and a handle. The base is used to support and stabilize the jack, while the piston moves up and down through the operation of the handle.
The principle of the jack is based on Pascal's law, that is, in a closed liquid container, the pressure applied at any one position will be evenly transmitted to all parts of the container. The liquid in the jack is usually hydraulic oil or hydraulic liquid. When we push the piston with the handle, the liquid is forced to flow from one closed area to another, which generates huge pressure.
The use of the jack is very convenient, just place the base under the object that needs to be lifted, and then operate the handle, the piston will gradually rise, thereby raising the object. The carrying capacity of the jack usually depends on its design and manufacturing quality, and can generally bear a weight of several hundred to several thousand kilograms.
It should be noted that when using the jack, ensure that the center of gravity of the object is stable to avoid accidents. In addition, the piston should be put down in time after the jack is used to avoid damage or leakage caused by excessive pressure. Jack in industry, construction and automobile maintenance and other fields has a wide range of applications, its invention and use greatly facilitate people's work and life.
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