Automobile jack safe to use

Abstract

The invention discloses an automobile jack safe to use. The automobile jack safe to use comprises a jack system which is arranged on the bottom face of a base. The jack system comprises an electromagnet, a generator used for providing electric energy for the electromagnet, a permanent magnet and a guide tube, wherein magnetic poles of the permanent magnet are identical with those of the electromagnet, the generator is fixed to the bottom face of the base, one end of the guide tube is connected with the base, the electromagnet is located at the end, connected with the base, in the guide tube, the permanent magnet is inserted and arranged in the guide tube, and a metal supporting part is connected with the end, away from the electromagnet, of the permanent magnet. An LED lamp, an alarming device and a height measuring module are arranged at the end, close to the base, of the guide tube in an embedded mode, the generator supplies power to the LED lamp, the alarming device and the height measuring device, and the height measuring device is connected with the LED lamp and the alarming device through signals. Compared with the prior art, the automobile jack safe to use has the advantages that the jack is convenient to operate, and it can be avoided that an automobile is overturned due to the fact that the jacked height by the jack exceeds a normal value.

Description

technical field [0001] The invention belongs to the field of machinery manufacturing, and relates to a jack, in particular to a car jack for safe use. Background technique [0002] Jack is the simplest lifting equipment that a kind of lifting height is little. Jack is divided into mechanical jack and hydraulic jack two kinds, and principle has nothing in common with each other. In principle, the hydraulic jack is based on the principle of Pascal's principle, that is, the pressure of the liquid is the same everywhere, so that in a balanced system, the pressure exerted on the smaller piston is relatively small, while the pressure on the larger piston is relatively small. The applied pressure is also relatively high, which keeps the liquid still. Therefore, through the transmission of liquid, different pressures on different ends can be obtained, so that a transformation can be achieved. We common to whiskey jack be exactly to have utilized this principle to reach the transm...

AI Technical Summary

Problems solved by technology

[0004] To sum up, the current jacks have their own advantages and disadvantages, but the common feature is that more parts are required and the manufacturing cost is higher.

Moreover, users with insufficient arm strength, especially some women, will have the embarrassing situation that they cannot use the jack

At the same time, users who do not often use the jack do not have a good grasp of the height of the jack, which may cause serious accidents.

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