Hinge assembly for preventing surface cover from falling and explosion-proof lamp
The utility model discloses a hinge assembly for preventing a surface cover from falling, which is used for being connected to a lamp body and a surface cover of the explosion-proof lamp. The hinge assembly comprises a rotating shaft, a movable hinge fixed to the surface cover, and a fixed hinge fix...
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Format: | Patent |
Sprache: | chi ; eng |
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