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Special-shaped wrench with adjustable opening

A special-shaped and wrench technology, applied in the field of special-shaped wrenches, can solve the problems of limited use range and inability to adapt, and achieve the effect of expanding the range of use, increasing the number of applications, and adjusting the size of the opening.

Pending Publication Date: 2019-08-30
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing special-shaped wrenches cannot adapt to nuts of different sizes during use, and their application range is limited

Method used

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  • Special-shaped wrench with adjustable opening
  • Special-shaped wrench with adjustable opening
  • Special-shaped wrench with adjustable opening

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0012] Example: such as Figure 1-Figure 3 As shown, a special-shaped wrench with adjustable opening includes a wrench head 1 and a wrench arm 2. The wrench head 1 is an inverted hook structure, and the lower end is rotatably connected to the end of the wrench arm 2 through a hinged rod 3. The upper end of the wrench arm 2 is There is an arc-shaped sawtooth part on the upper part, and the wrench head 1 at the joint of the hinge rod 3 is provided with a bar-shaped adjustment groove 4. The length direction of the bar-shaped adjustment groove 4 is the same as the length direction of the wrench head 1, and the length direction of the bar-shaped adjustment groove 4 A plurality of arc-shaped card slots 5 equal in diameter to the hinge rod 3 are arranged on the top, and the arc-shaped card slots 5 are symmetrically arranged in the length direction relative to the bar-shaped adjustment groove 4. The spacing is smaller than the width of the strip-shaped adjustment groove 4, and the two...

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Abstract

The invention discloses a special-shaped wrench with an adjustable opening. The wrench comprises a wrench head and a wrench arm, the wrench head is of an inverted hook structure, the lower end is rotatably connected to the end of the wrench arm through a hinge rod, an arc sawtooth part is arranged on the upper end of the wrench arm, a strip adjusting groove is formed in the position, on the connecting position of the hinge rod, of the wrench head, the length direction of the strip adjusting groove is the same in the length direction of the wrench head, multiple arc clamping grooves equal to the diameter of the hinge rod are formed in the length direction of the strip adjusting groove, the arc clamping grooves are symmetrically arranged relative to the length direction of the strip adjusting groove, the hinge rod is provided with two symmetric cutting faces, the interval between the two cutting faces is smaller than the width of the strip adjusting groove, and the two ends of the stripadjusting groove are locked through nuts. Adjustability of the opening of the special-shaped wrench can be achieved, the application site is greatly added, the use range is widened, the equipment costis reduced, more wrenches do not need to be carried, the weight of carrying tools is reduced, time and labor are saved, adjusting is convenient and rapid, connection is reliable and stable, and loosening is avoided.

Description

technical field [0001] The invention relates to a special-shaped wrench with an adjustable opening, which belongs to the technical field of special-shaped wrenches. Background technique [0002] During use, the existing special-shaped wrench cannot adapt to nuts of different sizes, and its application range is limited. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a special-shaped wrench with adjustable opening to solve the problems in the prior art. [0004] The technical solution adopted by the present invention is: a special-shaped wrench with adjustable opening, including a wrench head and a wrench arm. There is an arc-shaped sawtooth part, and a bar-shaped adjustment groove is arranged on the wrench head at the joint of the hinge rod. The length direction of the bar-shaped adjustment groove is the same as the length direction of the wrench head. A plurality of equal arc-shaped card slots, the arc-shaped ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/10
CPCB25B13/10
Inventor 张霖申峻杨超
Owner GUIZHOU POWER GRID CO LTD
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