Stepless telescopic mechanism and stepless telescopic screwdriver

A telescopic mechanism, stepless technology, applied in screwdrivers, hand-held tools, wrenches, etc., can solve the problems of poor connection firmness and low precision, and achieve the effect of simple structure

Pending Publication Date: 2018-12-14
XIAMEN NANCH BIT PRECISION TOOLS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention aims to provide a stepless telescopic mechanism to solve the problems of low precision and poor connection firmness of the existing quick-release connection mechanism for screwdrivers

Method used

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  • Stepless telescopic mechanism and stepless telescopic screwdriver
  • Stepless telescopic mechanism and stepless telescopic screwdriver
  • Stepless telescopic mechanism and stepless telescopic screwdriver

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Embodiment Construction

[0036] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

[0037] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0038] combine Figure 1 to Figure 4 As shown, this embodiment provides a stepless telescopic screwdriver with a stepless telescopic mechanism, which includes a screwdriver head 1 and a screwdriver handle 20, and the f...

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PUM

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Abstract

The invention relates to a stepless telescopic mechanism and a stepless telescopic screwdriver. Firstly, a containing cavity is formed in a connecting rod and a connecting handle is arranged in the containing cavity so as to form the telescopic mechanism, the connecting handle is arranged in different depth of the containing cavity, so that the overall length adjustment can be realized; secondly,a self-locking body and a self-locking part are arranged, the self-locking body is arranged between the self-locking part and the connecting handle, an inclined abutting surface is arranged on the self-locking body, so that the single-direction pulling can be realized, and meanwhile, in the direction opposite to the pulling direction, the self-locking body is driven by the friction force of the connecting handle, the self-locking body abuts against the inclined and narrowed abutting surface, the reverse self-locking is realized, so that a single-direction locking action force is provided.

Description

technical field [0001] The invention belongs to the technical field of fastening structures, and in particular relates to a fastening structure of a stepless telescopic mechanism, and also relates to a stepless telescopic screwdriver. Background technique [0002] Screwdrivers are widely used in various industries such as machinery, electric power, electronics, automobiles, glasses, clocks and watches, and household DYI, and there are many types, with different functions, lengths, and sizes. [0003] Functionally, the combined screwdriver that can quickly change the screwdriver head is a more popular variety in the industry and market due to its ease of use. [0004] At present, the screwdriver bits used in various sets of interchangeable screwdriver bits are basically divided into two types, one is hexagonal, and its basic size is 1 / 4 inch across the side, that is, 6.35mm / 5mm / 4mm / 3mm; One is the round rod type, and its specifications and sizes are mainly Ф6 / Ф5 / Ф4 / Ф3, etc.;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B15/02
CPCB25B15/02B25G1/043B25B23/12B25B13/481B25B23/0035B25B23/0042
Inventor 王力南
Owner XIAMEN NANCH BIT PRECISION TOOLS
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