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Wrench suitable for different nut diameters

A wrench and nut technology, applied in the field of wrenches, can solve the problems of laborious adjustment operation, long time consumption, unfavorable promotion, etc., and achieve the effects of wide application range, small size and simple structure

Inactive Publication Date: 2017-01-04
QINZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the structure is simple, it has the disadvantages of laborious adjustment and long time-consuming operation during use, which is not conducive to popularization

Method used

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  • Wrench suitable for different nut diameters
  • Wrench suitable for different nut diameters

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Embodiment Construction

[0018] The present invention will be further explained below in conjunction with specific embodiments and drawings, but it is not intended to limit the present invention.

[0019] In this embodiment, the referred to "many" refers to the quantity greater than or equal to 3, which is called "many".

[0020] Such as figure 1 , figure 2 As shown, a wrench adapted to different nut diameters includes a wrench body 1 for gripping and a first clamping mechanism 3 installed at one end of the wrench body 1 . The first clamping mechanism 3 includes a telescopic disc 3-3 for clamping nuts to be disassembled, a power cylinder 3-2 coaxially installed outside the telescopic disc 3-3 and a power cylinder 3 for driving - 2 rotating drive gears 2 . in,

[0021] There is a rotation space 4 between the inner diameter of the power cylinder 3-2 and the outer diameter of the telescopic disk 3-3, and a plurality of transmission rods 3-1 are arranged at intervals in the rotation space 4, and the ...

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PUM

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Abstract

The invention discloses a wrench suitable for different nut diameters. The wrench comprises a wrench body and a first clamping mechanism mounted at one end of the wrench body, the first clamping mechanism comprises a telescopic disc, a transmission gear and a power barrel coaxially mounted outside the telescopic disc, rotating space exists between the inner diameter portion of the power barrel and the outer diameter portion of the telescopic disc, a plurality of transmission rods are arranged in the rotating space at intervals, one end of each transmission rod is hinged to the telescopic disc, and the other end of each transmission rod is hinged to the power barrel. A tooth profile engaged with the transmission gear is arranged at one end of the power barrel, and a rotary shaft on the transmission gear is connected with a driving device. A plurality of movable blades are arranged in the telescopic disc in the circumferential direction, one end of each movable blade is fixedly connected to the inner diameter portion of the telescopic disc, and the other end of each movable blade serves as a clamping end. According to the wrench of the structure, the opening and closing degree of the wrench can be adjusted fast according to different nuts so that the wrench can be suitable for clamping the nuts with different diameters; manual operation is not needed, labor is saved, and the wrench is fast to use, simple in structure and high in practicality.

Description

technical field [0001] The invention relates to a mechanical repair and installation tool, in particular to a wrench suitable for different nut diameters. Background technique [0002] A wrench is a commonly used installation and removal tool. The wrench of the traditional structure is usually made of carbon structural steel or alloy structural steel, which uses the principle of leverage to turn bolts, screws, nuts and other hand tools that are threaded to hold the opening or casing of the bolt or nut. When the wrench is in use, an external force is applied to the handle along the direction of thread rotation, and one end of the clamped nut or bolt can twist the bolt or nut. Wrenches are divided into live wrench and dead wrench. The adjustable wrench is adapted to nuts of different diameters by manually adjusting the opening and closing of the adjustable wrench. It has a wide range of applications and is more popular. [0003] However, the adjustment of the opening and cl...

Claims

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Application Information

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IPC IPC(8): B25B13/12B25B13/16
CPCB25B13/12B25B13/16
Inventor 钟家勤李尚平薛斌周建阳崔传真王跃飞何维
Owner QINZHOU UNIV
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