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 manufacture this kind of flameproof cavity, which increases production cost

In addition, the above-mentioned emergency function of the explosion-proof sign lamp requires the lamp to be in a normal state at all times to deal with dangerous situations that may occur at any time. If the lamp cannot activate the emergency function in an emergency, it may cause unnecessary casualties. The detection of lamps at any time has become an essential work, but there is no lamp with the above functions at present

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