Vehicle portable jack convenient to position and support

Abstract

The invention relates to the technical field of automobile maintenance equipment, and discloses a vehicle portable jack convenient to position and support. The portable jack comprises a supporting seat, a shell is fixedly connected to the surface of the supporting seat, the interior of the shell is movably connected with a screw rod, the surface of the screw rod is sleeved with a spring, the surface of the spring is movably connected with a pressing rod, the interior of the supporting seat is fixedly connected with a negative pressure plate, the interior of the negative pressure plate is slidably connected with a flow pipe, and the surface of the flow pipe is movably connected with a spring rod. According to the portable jack, the spring rod and a stretchable rod are extruded inside the supporting seat, the negative pressure plate is elastic, gas is extruded and blown on the ground in the initial stage of extrusion, and the ground is simply subjected to ash clearing treatment; and whenthe negative pressure plate is in the later stage of extrusion, a bearing rod is about to reach the set height, the negative pressure plate is extruded and deformed, the negative pressure space is formed in the lower portion of the negative pressure plate, and the supporting seat is adsorbed on the ground, so that the effect that the supporting force is more stable along with the increase of thejacking height is achieved.

Description

technical field [0001] The invention relates to the technical field of automobile maintenance equipment, in particular to a portable jack for vehicles which is convenient for positioning and supporting. Background technique [0002] Cars are a common means of transportation for people. Car tires are consumables and will be punctured when encountering sharp objects. Therefore, the jack used to replace tires has become a standard equipment on cars. [0003] A jack is a light and small lifting device that uses a rigid lifting piece as a working device to lift heavy objects within a small stroke of the top bracket or bottom claw. The traditional vehicle jack, in order to reduce its own weight and volume, They are designed to be relatively compact. [0004] Although the traditional vehicle jack equipment can lift the vehicle to a certain height in some unexpected situations, due to its small support area and the lack of corresponding gripping mechanism, it is easy to appear supp...

AI Technical Summary

Problems solved by technology

[0004] Although the traditional vehicle jack equipment can lift the vehicle to a certain height in some unexpected situations, due to its small support area and the lack of corresponding gripping mechanism, it is easy to appear support during the process of jacking up the car. Unstable phenomenon, the lighter ones, the car body shakes, and the heavier ones, the car body falls down and hurts the owner; in addition, the existing car jacks do not have a set height for the vehicle to be lifted when changing tires, causing the owner to rely on himself Judging the distance by experience or with the help of measuring tools will not only reduce the speed of tire replacement, but also indirectly increase the risk of tire replacement personnel. Therefore, a portable jack for vehicles that is easy to position and support has emerged as the times require

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