Waterproof step chain with special structure

Abstract

The invention relates to a waterproof step chain with a special structure. According to the technical scheme, the waterproof step chain of the special structure comprises a chain A and a chain B whichare formed by connecting a plurality of chain links in sequence, each chain link comprises an inner chain plate and a sleeve, an outer chain plate and a shaft chain plate are arranged at two sides ofadjacent ends of every two adjacent chain links, the connected ends of the adjacent chain links penetrate through the corresponding inner chain plates, the sleeves, the outer chain plates and the shaft chain plates through retaining ring pins, the other ends penetrate through the corresponding inner chain plates, the sleeves, the outer chain plates and the shaft chain plates through D-shaped pins, felt sealing rings and filler sealing rings are arranged between the inner chain plates and the outer chain plates and between the inner chain plates and the shaft chain plates, and a guide wheel assembly is arranged at one side of each step shaft. The waterproof step chain is advantageous in that a good protection effect is achieved on external dust, water, foreign matters and the like, injected grease can be reserved in gaps between the pins and the sleeves for a long time, the lubricating time between the pins and the sleeves is prolonged, the abrasion between parts when a hinge rotates is reduced, and the service lifetime is prolonged.

Description

technical field [0001] The invention relates to a chain, in particular to a waterproof step chain with a special structure. Background technique [0002] At present, China is a big manufacturer of escalators as well as a big consumer. The annual output of escalators in China has reached the forefront of the world. Famous brands from all over the world have entered China, such as KONE from Finland, OTIS from the United States, SHANGHAI MITSUBISNI from Sino-Japanese joint venture, HITACHI from Japan, and Theo Elevator from China ( XIOLIFT), Schindler in Switzerland, YUNGTAY in Taiwan, TOSHIBA in Japan, FUJITEC in Sino-Japanese joint venture, CANNY in China, etc. Escalators are mainly used in large shopping malls, supermarkets, stations, docks, airports, subways and other places. These public infrastructures are in the development period of our country, with a large market demand and a good prospect. Depending on the place of use, outdoor escalators are also widely used. As ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a waterproof cascade chain with a special structure in view of the defects that the oil filling of the current chain is likely to cause environmental pollution and fire risks, poor protection against external dust, water, foreign matter, etc., and poor lubrication performance between the parts of the chain

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