Sealing structure of wire inlet hole and explosion-proof lamp

Abstract

The invention relates to a sealing structure of a wire inlet hole, which is used for sealing a clearance between a wire inlet hole (110) and a wire cable (200). The sealing structure of the wire inlet hole comprises a filler (300) and a pressing component, wherein the filler (300) is arranged in the wire inlet hole (110), the middle of the filler (300) is provided with a through hole (310), the wire cable (200) penetrates through the filler (300), and the pressing component is arranged at the open end of the wire inlet hole (110) and presses the filler (300) into the wire inlet hole (110) so as to enable the filler (300) to be deformed; one end of the filler (300) contacts with the pressing component, and the other end of the filler (300) supports against the end face of an internal cavity of the wire inlet hole (110). The invention also relates to an explosion-proof lamp adopting the sealing structure of the wire inlet hole. The invention omits a glue sealing process and the curing time of sealing glue, reduces the assembly man-hour, and has more reliable sealing quality by the fixation and the pressing of the pressing component, and simple and easy replacement, and simple operation because the sealing effect can be regulated by regulating the pressing degree of the pressing component.

Description

technical field [0001] The invention relates to the field of lamp sealing, and more particularly, to a wire inlet hole sealing structure and an explosion-proof lamp adopting the wire inlet hole sealing structure. Background technique [0002] At present, the explosion-proof lamp is a kind of lamp used in a specific gas environment, especially in some flammable gas, dust and other environments. In order to ensure the safety of the application site, the lamps and lanterns are required to have good sealing safety to prevent these flammable gases, dust, etc. from entering the lamps and causing explosion accidents. [0003] The cable entry hole is the channel for cables to enter the lamp. For explosion-proof lamps, it is also one of the channels for the external dangerous gas to enter the lamp. The cable entry hole must be safely and effectively sealed. The commonly used sealing method is to use AB glue to seal the wire inlet, and the sealing length is ≥20mm, such as figure 1 A...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a sealing structure for the inlet hole with a simple structure and easy operation in view of the disadvantages of the above-mentioned glue filling and sealing method of the inlet hole in the prior art, such as complicated operation, long curing time, and unstable sealing.

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