Lifting rod locking structure of lamps and floodlights using the lifting rod locking structure

Abstract

A lifting rod hasp structure for a lamp is applied to a movable rod and a bottom rod which are detachably connected and comprises a joint fixing base, a threaded fastening piece, a friction ring, a handle, a rotary shaft and a locking shaft. A first narrow groove and a second narrow groove intersecting with the first narrow groove are formed in the joint fixing base and four portions divided through the first narrow groove and the second narrow groove are two locating and clamping portions and two fixing and clamping portions; the threaded fastening piece is fixedly connected with the two fixing and clamping portions; the movable rod is sleeved with the friction ring and a third narrow groove extending in the axial direction of the friction ring is formed in the friction ring; one end of the handle is provided with an eccentric cam and a shaft hole extending in the axial direction of the eccentric cam and a limiting groove located in the middle of the eccentric cam are formed in the eccentric cam; the rotary shaft penetrates through the shaft hole of the eccentric cam; the locking shaft comprises a rod body and a stopping portion arranged at one end of the rod body, the other end of the rod body penetrates through the two locating and clamping portions, and the stopping portion is contained into the limiting groove. According to the lifting rod hasp structure, the height of the movable rod can be adjusted conveniently through the handle. The invention further provides a projection lamp with the lifting rod hasp structure.

Description

【Technical field】 [0001] The present invention relates to a locking structure, in particular to a lifting rod locking structure of a lamp and a floodlight using the lifting rod locking structure. 【Background technique】 [0002] The lifting rod structure of traditional lamps generally has multiple movable rods set together, and there is a joint fixed lock between the two movable rods, that is, one is the movable rod, the other is the bottom rod, and the gap between the movable rod and the bottom rod The joint is fixed by the lock buckle. How this articulation lock is done varies, however most articulation locks are secured with two pairs of screws and nuts. [0003] When adjusting the height of the movable rod, a special tool is needed to turn the screw, such as a handle, a screwdriver, etc. Therefore, it is difficult to unlock the locking structure of the lifting rod of the traditional lamp, which makes it inconvenient to adjust the height of the movable rod. [0004] In a...

AI Technical Summary

Problems solved by technology

This solution is because during the operation process, clamping the handle needs to deform the fixed seat and the movable rod. During this process, because the handle is not limited, after the handle is released, the handle is easy to rotate around the handle screw, and the handle is easy to loosen, which directly affects In the next clamping operation, in this case, to restore the clamping function, the handle must be turned back to the original position to achieve clamping, which has a great impact on the operation

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