Large high-temperature-resistant and convenient-to-dismount double-layer sealing box

Abstract

The invention provides a large high-temperature-resistant and convenient-to-dismount double-layer sealing box. The sealing box comprises a top, stepped side parts, horizontal side parts, a bottom anda connecting device; the connecting device comprises a top connector, a stepped side part connector, a bottom connector and a horizontal side part connector; square grooves are formed in the horizontal side part connector and the stepped side part connector; and connecting bolts and connecting nuts penetrate through the square grooves to glidingly connect the horizontal side part connector and thestepped side part connector with the top connector and the bottom connector. The top, the bottom, the stepped side parts and the horizontal side parts of the sealing box can move relatively, so thatwhen the sealing box works in the high-temperature environment or the environment having the relatively large temperature change, the thermal expansion amount can be compensated through relative movement of the top, the bottom, the stepped side parts and the horizontal side parts, the sealing performance of the sealing box is guaranteed; and besides, the top, the bottom, the stepped side parts andthe horizontal side parts are connected through the connectors, the connecting nuts and the connecting bolts, all that is required for mounting and dismounting of the top, the bottom, the stepped side parts and the horizontal side parts is to loosen and tighten the connecting nuts, and machining and transportation are facilitated.

Description

technical field [0001] The invention relates to the field of sealing technology, in particular to a large-scale double-layer sealed box with an external stretching device. Background technique [0002] As the use of airtight boxes becomes more and more extensive, the requirements for airtightness and functional diversity of airtight boxes are becoming more and more stringent. Especially in the application fields such as incubators, safes, and special boxes, in order to achieve better sealing performance, double-layer sealed structure boxes have been proposed. [0003] The function of the double-layer sealed box in the prior art is simple, only has a single sealing performance, and complex devices cannot be arranged inside to control and operate the objects inside the box, especially large-scale devices that will generate large loads, so there is no need to control the inside of the box. The function of controlling and operating objects; when some large double-layer sealed b...

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned problems that it is difficult to arrange large-scale control and operating devices in the double-layer sealed box, it is not convenient for manufacturing and transportation, and the problems of thermal deformation, the present invention provides a large-scale control and operating device that can be arranged inside, which is convenient for manufacturing and transportation, and can also prevent thermal deformation from causing sealing. Sealed box with reduced performance

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