A telescopic protective cover

Abstract

The invention relates to the technical field of air separation equipment, and provides a telescopic protective cover, comprising a cylindrical leather case (3) with open ends, and an inner liner (2) located in the leather case (3), the inner liner ( 2) It includes elastically bendable spokes (22), a first backing ring (21) and a second backing ring (23). The telescoping protective cover is characterized in that a plurality of spokes (22) are arranged around the centerline of the holster (3) and form a spoke cluster; the first lining ring (21) is supported at a port of the holster (3), and is connected with the One end of the spoke cluster is fixedly connected; the second lining ring (23) is supported at the other port of the leather sheath (3), and is fixedly connected with the other end of the spoke cluster. When the telescopic protective cover is in a contracted state, the spokes (22) support the holster (3) to bulge outwards, and the surface of the holster (3) will not accumulate rain and snow. Therefore, the present invention can reduce the influence of rain and snow on the holster. Increase the service life of the telescoping shield.

Description

technical field [0001] The invention relates to the technical field of air separation equipment, in particular to a telescopic protective cover. Background technique [0002] The air separation plant used for industrial oxygen production provides a low-temperature production environment for air separation. Affected by temperature factors, the various components of the air separation plant may expand and contract to varying degrees, so a telescopic protective cover is used to protect the two adjacent components. When the two components are connected, the expansion and contraction deformation of the telescopic protective cover will be used to compensate for the relative displacement of the two components. [0003] At present, the telescopic protective cover is generally composed of a holster. When the holster is in a contracted state, "dimples" are often formed on the surface of the holster. In the outdoor environment, the rain and snow accumulated in these "dimples" will acce...

AI Technical Summary

Problems solved by technology

[0003] At present, the telescopic protective cover is generally composed of a holster. When the holster is in a contracted state, "dimples" are often formed on the surface of the holster. In the outdoor environment, the rain and snow accumulated in these "dimples" will accelerate the damage of the holster. , reduce the service life of the telescopic protective cover, therefore, how to reduce the influence of rain and snow on the holster and improve the service life of the telescopic protective cover has become a technical problem to be solved urgently by those skilled in the art

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