a telescoping rod

Abstract

The invention discloses a telescopic rod. The telescopic rod mainly comprises a rod body and a locking mechanism, wherein the locking mechanism comprises a locking assembly and a shifting part; the locking assembly comprises a pressure bearing part; at least one involute curved surface is arranged on the peripheral wall of the pressure bearing part; a pressure applying part is movably arranged at the position, corresponding to the involute curved surface, of the peripheral wall of the pressure bearing part; the shifting part can be connected with the pressure applying part in a clamped mode and pushes the pressure applying part to move back and forth along the involute curved surface on the peripheral wall of the pressure bearing part. When an inner pipe and an outer pipe rotate relatively, the inner pipe or the outer pipe will drive the shifting part to push the pressure applying part to move along the involute curved surface, at the moment, the pressure applying part gradually protrudes outwards from the surface of the pressure bearing part and extrudes the inner wall of the outer pipe to achieve the expansion function, so that the relative position of the inner pipe and the outer pipe is locked, and if the locking function between the inner pipe and the outer pipe is needed to be released, it is only needed to rotate the inner pipe or the outer pipe reversely or forwards. Operation is easy and convenient, and the length of the telescopic rod can be adjusted freely.

Description

technical field [0001] The invention relates to photographic equipment, in particular to a telescopic rod for a photographic tripod and a selfie stick. Background technique [0002] At present, the equipment using telescopic devices are as follows: photographic equipment, selfie sticks, camera racks, fishing rods, clothes drying poles, and glass wiper poles. tube, and then lock the inner tube and the outer tube by buckles, latches, etc. These locking methods usually need to open a plurality of holes on the inner tube, and the optional range of the length of the telescopic rod is limited by the number of holes, and the operation is relatively inconvenient. [0003] Chinese invention (CN204061447U) An eccentric tube structure discloses an eccentric tube structure, including at least two eccentric tube bodies with matching diameters, and at the junction of every two tube bodies, one end of the tube body with a relatively smaller diameter is installed slide sheet. The inventi...

AI Technical Summary

Problems solved by technology

But this invention mainly has the following deficiencies: the production process of the eccentric pipe body is complicated, the precision is not easy to control, and the production equipment and products are not versatile.

But this invention mainly has the following disadvantages: although the invention adopts a circular center tube, its locking structure is still relatively complicated

Images