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a tire wrench

A technology of wrenches and tires, applied in the directions of wrenches, screwdrivers, manufacturing tools, etc., can solve the problems of poor control of the matching clearance, affecting the operation effect, inconvenient storage, etc., and achieve the effect of improving the safety and reliability of use

Active Publication Date: 2016-01-27
NANTONG TONGRUN AUTO ACCESSORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Usually, the existing tire wrench power arm is mostly single-section, which is inconvenient to store. Occasionally, it is designed as an extended handle that can be pulled, and the tool is shaking during use due to poor control of the fit gap between the front and rear section power arms. , which directly affects the operation effect

Method used

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Embodiment Construction

[0038] The following will further describe the technology of the present invention in conjunction with the accompanying drawings of the embodiment, which will help the public to understand the technical content and effect of the case, but the description of the embodiment does not constitute a limitation to the technical solution. All transformations that are merely equivalent in form should be regarded as the scope of the technical solution of this case.

[0039]It can be seen from the drawings that the sleeve part, the extension handle and the front handle of the tire wrench form a related rotation pair connection, and the built-in positioning tensioning torsion spring cooperates with each structural element to design a new concept structural part, so that the relative structural elements can be compared. Strict, reliable positioning, so that the mechanical strength, rigidity and the safety and reliability of the wrench tool are guaranteed. In addition, the two sides of the f...

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Abstract

The invention discloses a tyre spanner. According to the tyre spanner, a front-section handle is rotationally connected with a sleeve component and an extension handle by a first rotary pin shaft and a second rotary pin shaft respectively; a first small groove, a second small groove, a third small groove, a fourth small groove, a first top cap cavity and a second top cap cavity are formed in a left-side panel and a right-side panel respectively, and the formed left pin shaft hole and right pin shaft hole are coaxial holes; a left-side slide hole and a right-side slide hole with the same hole central line are formed in the parallel positions of the hole central line matched with the second rotary pin shaft; the spring ring portion of a location tensioning torsional spring is arranged in the groove section cavity of a U-shaped opening below the second rotary pin shaft, and a first slide top cap and a second slide top cap sleeve at each spring leg respectively; the excircle of the second slide top cap and the left-side slide hole form an axial movement rail, and the excircle of the first slide top cap and the right-side slide hole form another axial movement rail. According to the tyre spanner disclosed by the invention, the use safety and reliability of a spanner tool are improved.

Description

technical field [0001] The present invention relates to lifting tool components, in particular to a collapsible tire wrench for maintaining vehicles. Background technique [0002] Among the lifting tools for repairing and maintaining various types of automobiles, a large number of horizontal hydraulic jacks, vertical hydraulic jacks, screw jacks and scissor jacks have appeared. Jacks are widely used because of their light weight and better safety and reliability. This type of scissor jack transmits the lifting power through the threaded pair, and has the excellent feature of mechanically locking the lifted vehicle at any height position, while the power torque required to rotate the screw of the scissor jack requires an operating handle A tire wrench acts as a power arm and applies a suitable torque to achieve this. This operating handle as the power arm is common with the tire wrench for mounting and dismounting the vehicle wheel. Therefore, as far as the tire wrench of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/06B25B13/48
CPCB25B13/48B25B23/16
Inventor 蒋海波韩进盛永明顾晓峰林来顺陈有源
Owner NANTONG TONGRUN AUTO ACCESSORY
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