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Power wrench

A wrench and power technology, applied in the field of power wrench, can solve the problems of difficult to control the degree of tightening, low work efficiency, difficult to apply, etc., and achieve the effect of saving manpower and reasonable structure

Inactive Publication Date: 2015-03-18
NANJING CHERVON IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing manual wrench used for fastening screw parts relies on manpower to output torque, the work efficiency is low, and it is difficult to control the degree of tightening, while the existing pneumatic or electric power wrench can only be installed with one specification at the same time. When encountering complex working conditions, users often need to frequently replace the sleeve to find a suitable set hole, and it is difficult to apply in the case of relatively small space
Still do not have a kind of power wrench that can solve the above problems now

Method used

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Embodiment Construction

[0042] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0043] refer to Figure 1 to Figure 10 As shown, the power wrench 100 of the present invention mainly includes: a handle 10, a power device (not shown), a first transmission mechanism 20 (see Figure 5 , Figure 6 shown), the first component 30, the second component 40, and the third component 50.

[0044] Wherein, the handle 10 is the main part of the power wrench 100 , the power device is accommodated in the handle 10 , and the first transmission mechanism 20 is partially accommodated in the handle 10 .

[0045] The power device is mainly used to provide power. As a preferred solution, the power device can be an electric motor or an air motor; the first transmission mechanism 20 is mainly used to realize transmission between the power device and the second component 40 .

[0046] refer to Figures 2 to 7 As shown, the first componen...

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Abstract

The invention discloses a power wrench. The power wrench comprises a handle, a power device, a first transmission mechanism, a first part which is arranged at the end part of the handle, a second part which is arranged in a frame structure formed by the first part, and more than one third part which is installed on the second part and can synchronously and pivotally rotate with the second part; the first part comprises a frame body used for forming the frame structure and a second transmission mechanism which can be driven by the first transmission mechanism to drive the second part to pivotally rotate; the second part comprises a wheel which is constrained by the frame body in a first axis direction and is directly driven by the second transmission mechanism, and more than two arms which are used for installing the third part to enable the third part to always exceed the first part in the first axis direction; the third part and the second part form rotatable connection by taking a second axis as a rotating axis through the arms. The power wrench has the beneficial effects that the labor is saved, the structure is reasonable, and the power wrench can be switched to an applicable sleeve hole without being disassembling when a user needs to fasten threaded parts of different specifications.

Description

technical field [0001] The invention relates to a power tool, in particular to a power wrench. Background technique [0002] Threaded connection is a widely used detachable fixed connection, which has the advantages of simple structure, reliable connection, and convenient assembly and disassembly. However, the existing manual wrench used for fastening screw parts relies on manpower to output torque, the work efficiency is low, and it is difficult to control the degree of tightening, while the existing pneumatic or electric power wrench can only be installed with one specification at the same time. When encountering complex working conditions, users often need to frequently replace the sleeve to find a suitable set hole, and it is difficult to apply it in a relatively small space. Still do not have a kind of power wrench that can solve the above problems now. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the purpose of the presen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B21/00B25B23/00
CPCB25B21/00B25B23/00
Inventor 倪桂功
Owner NANJING CHERVON IND