Patent ID: 6851829
Filing Date: 2005-02-08
Classification: F21S,F21V

Abstract:
1. A locking device for locking a lamp rod comprising a lamp seat firmly secured to a lateral side of a wire winding box, a connecting structure within the lamp seat and a lamp rod inserted into the lamp seat; wherein a lateral side of the wire winding box has a via hole and a bottom of the wire winding box coupled to the lamp seat has through hole; a portion of the lamp seat coupled to the via hole of the wire winding box has a penetrating hole; a distal end of the lamp seat is locked with an inserting seat; a top of the lamp seat is protruded with a platform and a guide hole is formed on the platform for embedding the connecting structure; the connecting structure is formed by an embedding block in the guide hole of the lamp seat and a spring placed above the embedding block; a press plate locked to the platform of the lamp seat for confining the embedding block and the spring to a top of the lamp seat; an annular edge of the embedding block is installed with a larger stepped edge which exactly resists against a top of the platform so that as a front end of the embedding block is pushed by the spring, it will protrude from the guide hole, but not fall out from the guide hole; and a front end of the lamp rod is exactly inserted into the end portion in the inserting seat of the lamp seat for electric conduction; a top of the lamp rod is installed with a plurality of recesses; each recess has an inclined surface and a vertical surface; thereby, at the time that the lamp rod is inserted, the inclined surface will push the embedding block to compress the spring so as to confined the lamp rod; thereby, a user can assembled the lamp rod by inserting it to the lamp seat easily.