Anti-explosion marker lamp

Abstract

The invention discloses an anti-explosion marker lamp. The anti-explosion marker lamp comprises a lamp body and a light-emitting screen component fixed on one side of the lamp body, wherein a switch box is arranged in the lamp body; a power supply circuit for driving to light the light-emitting screen component is arranged in the switch box; the switch box adopts encapsulating package; a switching part is also arranged in the switch box; the lamp body is provided with a button which can drive the switching part; when the button is pressed, the switching part switches off the power supply circuit; and when the button is released, the switching part switches on the power supply circuit. In the anti-explosion marker lamp, the switch box adopts the encapsulating package and a sealing effect is good, so the interior of the anti-explosion marker lamp meets a safety-increased requirement and a safety-increased structure has the characteristics of easy manufacturing and lower cost compared with an anti-explosion structure with high difficult in the prior art. Simultaneously, the switching part which can perform emergency test on the anti-explosion marker lamp is arranged in the switch boxon the premise of meeting the safety-increased requirement, so as to prevent sparkle generated when testing from fleeing outwards and bring convenience to the test of the anti-explosion marker lamp; therefore, the anti-explosion marker lamp can be used more safely and reliably.

Description

technical field [0001] The present invention relates to a lamp, more specifically, relates to an explosion-proof sign lamp. Background technique [0002] Explosion-proof sign lights are widely used in petroleum exploration, chemical industry, military industry, ships and other dangerous environments or places. They are used for safety exit indication or as a safety evacuation guidance indication in case of power failure emergency. Existing explosion-proof sign lamps are generally internally divided into units for flameproof packaging, and the units are connected through sealed pipes and the outside is double-protected by shell sealing. The shell must meet the requirements of increased safety, that is, it must bear a certain pressure, so the production requirements for the shell are high. At the same time, due to the structure of the light-emitting screen of the explosion-proof sign lamp, it is also difficult to manufacture this kind of flameproof cavity, which increases pro...

AI Technical Summary

Problems solved by technology

Existing explosion-proof sign lamps are generally internally divided into units for flameproof packaging, and the units are connected through sealed pipes and the outside is double-protected by shell sealing. The shell must meet the requirements of increased safety, that is, it must bear a certain pressure, so the production requirements for the shell are high. At the same time, due to the structure of the light-emitting screen of the explosion-proof sign lamp, it is also difficult to manufac

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