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Shaped wrench

A wrench and special-shaped technology, applied in the field of wrenches, can solve problems such as inconvenient use, affecting work progress, and loose bite, etc., and achieve the effect of large contact area, easy operation, and stable torsion

Active Publication Date: 2018-08-14
李彩琴
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A wrench is one of the common hardware tools, it can easily twist nuts and screws; the traditional wrench includes fixed teeth and movable teeth, and the movable teeth are controlled by adjusting the screw during use, so that the movable teeth are close to or far away from the fixed teeth, and then suitable for Nuts of different sizes; therefore, it takes a certain amount of time to adjust the traditional wrench before use. When it is necessary to twist nuts of different sizes, repeated adjustments are required, which is inconvenient to use; at the same time, the movable teeth of the traditional wrench are easy to loose. In the process of use, there are often loose bites, which affect the work progress; in addition, loose bites can easily cause components to collapse and fly, posing certain safety hazards

Method used

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Effect test

Embodiment

[0019] exist figure 1 , figure 2 In the shown embodiment, the special-shaped wrench includes a fixed frame 1 and an adjustment column 2;

[0020] The fixed frame 1 includes a splint 11 and a slide bar 12, the fixed frame 1 is arranged in a staggered manner connected end to end by the splint 11 and the slide bar 12, and forms a closed ring; the top view of the fixed frame 1 is a regular hexagon Shape; anti-slip stoppers are provided at the ends of the splint 11 and the slide bar 12; the stoppers are not shown in the figure;

[0021] The adjustment column 2 is a cylindrical structure with a closed bottom; the adjustment column 2 is arranged on the axis of the fixed frame 1, and an elastic telescopic tube 3 is arranged on the outer peripheral wall of the adjustment column 2 symmetrically, and the elastic telescopic tube 3 One end is fixed and airtightly connected to the splint 11 or the slide bar 12, and the other end is connected to the adjustment column 2; the elastic telesc...

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Abstract

The invention relates to a special-shaped wrench. The special-shaped wrench comprises a fixing frame and an adjusting column. The fixing frame comprises clamping plates and slide strips and is in a closed ring structure formed by end-to-end staggered connection of the clamping plates and the plates. The adjusting column is arranged at the axis of the fixing frame, elastic retractable tubes are rotationally and symmetrically arranged on the outer peripheral wall of the adjusting column and partition the closed ring structure into locking units equal in size, and torque rods are densely distributed in each locking unit. The inner peripheral wall of the adjusting column is provided with an internal thread, a piston cover matched with the internal thread is arranged in the adjusting column, the adjusting column and the elastic retractable tubes are filled with liquid, and the outer peripheral wall of the adjusting column is coated with a buffering layer. The special-shaped wrench is novel and unique in structure and capable of quickly adapting to nut structures in various sizes, so that operation efficiency can be improved; in addition, the wrench is high in interlocking force and high in use safety.

Description

technical field [0001] The invention relates to a hardware tool, especially a wrench. Background technique [0002] A wrench is one of the common hardware tools, it can easily twist nuts and screws; the traditional wrench includes fixed teeth and movable teeth, and the movable teeth are controlled by adjusting the screw during use, so that the movable teeth are close to or far away from the fixed teeth, and then suitable for Nuts of different sizes; therefore, it takes a certain amount of time to adjust the traditional wrench before use. When it is necessary to twist nuts of different sizes, repeated adjustments are required, which is inconvenient to use; at the same time, the movable teeth of the traditional wrench are easy to loose. In the process of use, there are often loose bites, which affect the work progress; in addition, loose bites can easily cause components to collapse and fly, posing certain safety hazards. Contents of the invention [0003] In view of the ab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/10B25B13/58
CPCB25B13/10B25B13/58
Inventor 马根昌
Owner 李彩琴
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