Hinge assembly and explosion-proof lamp for preventing cover from falling

Abstract

The invention discloses a hinge assembly used for preventing a surface cover from falling. The hinge assembly is used for connecting a lamp of an explosion-proof lamp with the surface cover and comprises a rotary shaft, a movable hinge and a fixed hinge; the movable hinge is fixed onto the surface cover, and the fixed hinge is fixed onto the lamp; two opposite guide grooves are integrally connected with the fixed hinge and are arranged vertically; the movable hinge is provided with a shaft sleeve, the shaft sleeve is arranged between the two guide grooves, and the length of the shaft sleeve is smaller than or equal to the distance of the two guide grooves; and the rotary shaft sequentially penetrates through the guide groove on one side of the shaft sleeve, the shaft sleeve and the guide groove on the other side of the shaft sleeve and is vertically slidably connected with the guide grooves, and the movable hinge is rotationally connected with the rotary shaft. The invention further discloses the explosion-proof lamp with the hinge assembly. The hinge assembly used for preventing the surface cover from falling and the explosion-proof lamp have the advantage of convenience in maintenance.

Description

technical field [0001] The invention relates to the field of lamps and fittings, in particular to a hinge assembly and an explosion-proof lamp for preventing a cover from falling. Background technique [0002] At present, the existing lamp cover is connected to the lamp body through bolts. When the cover is opened, the bolts are placed on the cover and separated from the lamp body together with the cover. Such design bolts are not easy to lose, but the cover needs to be put down separately for installation and maintenance. Especially high-altitude maintenance is very inconvenient. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a hinge assembly and an explosion-proof lamp that are convenient for maintenance and are used to prevent the cover from falling, aiming at defects such as inconvenient maintenance in the prior art. [0004] The technical solution adopted by the present invention to solve the technical pro...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a hinge assembly and an explosion-proof lamp that are convenient for maintenance and are used to prevent the face cover from falling, aiming at the defects of the prior art such as inconvenient maintenance.

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