Tunnel lamp dust-proof device

The utility model relates to a dustproof device for illuminating lamps in tunnels, which is composed of an electric retractor, a crank slide bar mechanism, a restoring spring, a dustproof cover and sealing material, wherein the electric retractor and an illuminating lamp are connected in parallel. W...

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Bibliographic Details
Main Authors JIANLING NIU, WEN'AN LI, XIAOZHOU OUYANG
Format Patent
LanguageEnglish
Published 19.05.1999
Edition6
Subjects
BLASTING
FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF
HEATING
LIGHTING
MECHANICAL ENGINEERING
STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR
WEAPONS
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Summary:The utility model relates to a dustproof device for illuminating lamps in tunnels, which is composed of an electric retractor, a crank slide bar mechanism, a restoring spring, a dustproof cover and sealing material, wherein the electric retractor and an illuminating lamp are connected in parallel. When the illuminating lamp is turned on, the power of the electric retractor is simultaneously switched on and the crank slide bar mechanism is used for pulling the dustproof cover to be opened. When the illuminating lamp is turned off, the power of the electric retractor is simultaneously switched off and the restoring spring is used for pulling and closing the dustproof cover. When the illuminating lamp does not work, the illuminating lamp is free from being polluted by dust and smoke. The utility model has the characteristics of electricity saving, simple structure, good seal and dustproof properties, etc., and is favorable for improving the illuminating effect.
Bibliography:Application Number: CN1997218483U