Noise reduction structure of telescopic air bag

Abstract

The invention provides a noise reduction structure of a telescopic air bag, the telescopic air bag comprises an opening part, and the rest part is in a hollow closed shape; the top of the telescopic air bag is a top plate, and a plurality of ring bodies with continuous wavy sections are arranged on the ring edge of the top plate towards the opening part; the ring bodies can generate a telescopic effect; at least one protruding part is arranged on the inner edge face of part of the ring body or the inner edge face of all the ring bodies. Noise generated during movement of a bellow tube type telescopic air bag in the prior art is improved. Especially, protruding parts are arranged on the inner edge faces of the telescopic ring body. Therefore, after the inner edge surfaces are condensed, the state that the inner edge surfaces are approximately in vacuum and are completely tightly attached to the suction cup in the prior art is avoided, and abnormal sound generated by drawing of the inner edge surfaces can be eliminated when the inner edge surfaces are inflated and stretched; when the device is applied to a silent environment, a nearly noiseless motion state can be obtained, so that discomfort to hearing of a human body is avoided.

Description

technical field [0001] The noise-reducing structure of the telescopic airbag of the present invention relates to a low-noise telescopic airbag structure, especially the technical field in which the telescopic airbag can eliminate the noise generated by structure drawing in the prior art when stretching. Background technique [0002] The bellows tube telescopic structure is used in many existing equipment in the market, such as figure 1 , the structure of this kind of telescopic airbag 1 is generally hollow and closed, including an opening 11, so as to carry out fluid in and out; its top is a top plate 12, and the ring edge of the top plate 12 faces the opening 11, and is provided with a continuous wave-shaped section. The ring body 13, these ring body 13 utilizes structural characteristic, can produce telescopic effect. Another example is the high-level fine-tuning mechanism of the No. I678991 lifting balance device of the Chinese Taiwan invention, the low-level fine-tuning...

AI Technical Summary

Problems solved by technology

[0003] In order to improve the noise defects caused by the pulling of the ring structure when the aforementioned telescopic airbag is stretched, the main purpose of the present invention is to provide a noise reducti...

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