Circular jacking air cushion

Abstract

The invention discloses a jacking air cushion used for jacking a heavy weight, particularly to a circular jacking air cushion. The circular jacking air cushion comprises a rubber skin sac, wherein an inner reinforcing metal plate is arranged at each of the upper and lower ends inside the rubber skin sac; an inflation valve is arranged on the rubber skin sac; a non-slip mat is arranged at each of the upper and lower ends outside the rubber skin sac; the inner reinforcing metal plates, the rubber skin sac, the non-slip mats and bearing metal plates are hermetically connected into an integrated body through screw plugs; the rubber skin sac is of a layered structure, and is formed through overlaying rubber inner skin, pressureproof fibers and rubber outer skin; and a handle is arranged on the rubber skin sac. According to the jacking air cushion, the bearing metal plates are designed at the top and the bottom of the rubber skin sac, better contact surfaces are provided, the air cushion is more stable during inflation and jacking, when the jacking air cushion is utilized to jack the heavy object, the bearing metal plates can bear higher load, a plurality of air cushions can be overlaid through the bearing metal plates, and the jacking height of the heavy object is increased; and the air cushion is circular, so that the jacking air cushion can bear higher inflation pressure and is not liable to burst.

Description

technical field [0001] The invention relates to a jacking air cushion for lifting heavy objects, in particular to a circular jacking air cushion. Background technique [0002] The working principle of the jacking air cushion is to use the expansion force of the air cushion to lift the weight when it is inflated. The existing jacking air cushions are all square air cushions. Due to the small contact surface area between the square air cushion and the heavy object, the lifting is unstable and the surface of the air cushion is easily damaged; the square air cushion is formed by compression molding, and the inflation pressure it bears is relatively small. , it is easy to cause bursting when overpressure; the square air cushion cannot be superimposed and connected with another air cushion, so the jacking height is limited. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the existing square jacking air cushions, which a...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the shortcomings of the existing square jacking air cushions, which are unstable in jacking, easy to burst, and cannot be stacked, and to invent a circular jacking air cushion equipped with a load-bearing metal plate to improve the performance of the contact surface and improve the jacking stability.

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