Device for locking telescoping rod

Abstract

This invention relates to a locking device of an extension rod including a base jacket fixedly holding an expansion outer pipe and locking pressed piece pivoted by the jacket, in which the base jacket includes an internal stop assemble part fixing the outer pipe and an inner tube expansion part making the inner pipe to expand freely, the outer side of the jacket is set with side ears for locking the press piece, slot channels allowing the locked press piece to press on the outer wall of the inner pipe are set at the side wall of the base jacket, the locked press piece is composed of a press body molded at one run and a locking post pressing on the front, the press body includes a locking front arm and a dynamic arm, a press piece pivot hole combined with the pivot hole of the side ears is set on the press body, a spring location device is set at a slightly back position of the dynamic arm and a locking post is pressed on the front of the arm and a location convex part extends into the step hole of the expansion inner pipe.

Description

technical field [0001] The invention belongs to the locking mechanism of the telescopic rod, especially the mechanism based on a base body to lock mutually nested inner and outer tubes or rod bodies in a pressing manner. Background technique [0002] Known technology, such as Chinese patent 00200213.2 discloses a positioning device for an improved telescopic support rod, which includes a group of telescopic support rods composed of inner and outer sleeves, and is characterized in that the two pivot joints are located on the rear side of the elastic handle A safety ejector rod is pierced with relatively large and small holes. The safety ejector rod protrudes below the big head to form a two-step body with a large and small diameter. The end is threaded and a section protrudes from the pivot joint to screw a cap body. The large-diameter step of the safety ejector rod is pushed into the pivot joint plate to withstand the elastic handle with the large-diameter step, and the head...

AI Technical Summary

Problems solved by technology

[0005] In the known technology, there are many locking mechanisms involving telescopic rods. Most of the structures that are locked by pressing based on a body are composed of cumbersome parts, which brings a lot of trouble to the assembly, thereby increasing the man-hour and reducing the assembly efficiency. The industry hopes that a The telescopic rod locking mechanism with a more simplified component composition and a more optimized component structure is developed to achieve the purpose of optimized assembly

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