Torque wrench

A torque wrench, torque technology, applied in the field of torque wrench

Pending Publication Date: 2022-05-13
INFAR IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, during the operation of the above-mentioned torque wrench, in order to prevent the preset torque value from changing due to accidental rotation of the adjustment mechanism, or the user is injured due to slipping when applying force, it is necessary to install an appropriate locking device
In addition, when adjusting the preset torque value, the tripping mechanism must move relative to the hollow rod body, so the friction between the tripping mechanism and the hollow rod body will also affect the user’s ability to adjust the preset torque value

Method used

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Embodiment Construction

[0024] Regarding the technology, means and effects used in the present invention, a preferred embodiment is given and described in detail below with drawings, which are for illustration purposes only, and are not limited by this structure in the patent application.

[0025] Please refer to figure 1 and figure 2 , is an embodiment of the torque wrench of the present invention. The torque wrench of this embodiment includes a hollow rod 10 , a force applying rod 20 , a handle 30 , a torsion elastic member 40 , a clutch group 50 and a locking device 60 . The hollow rod 10 has a first end 11 , a second end 12 opposite to the first end 11 , and a plurality of locking slots 13 disposed on the outer periphery of the second end 12 . Each locking groove 13 can extend along the axial direction of the hollow rod 10 and is formed on the outer peripheral edge of the second end 12 around the axis of the hollow rod 10 . The force applying rod 20 passes through and is pivotally connected to...

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PUM

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Abstract

The invention provides a torque wrench. The torque wrench comprises a hollow rod, a force application rod, a grip, a torsion elastic piece, a clutch set and a locking device. The locking device comprises a locking sleeve, a reset elastic piece, a fastener, a locking hole, a locking piece and a positioning set. The inner wall face of the locking sleeve is provided with a containing groove, an abutting part and a positioning groove. When the locking device is located at the locking position, the locking piece is pushed by the abutting part to be tightly pressed in the locking groove of the hollow rod so as to limit the grip to rotate relative to the hollow rod, and the positioning set abuts against the inner wall face of the locking sleeve. When the locking device is located at the releasing position, the locking piece is separated from the abutting part and can move between the containing groove and the locking groove, so that the grip can rotate relative to the hollow rod, and the positioning set is connected to the positioning groove in a clamped mode. Therefore, the positioning group provides a positioning effect relative to the grip when the locking device is at the release position.

Description

technical field [0001] The invention mainly relates to a torque wrench, especially a torque wrench with a locking device and easy to adjust the preset torque value. Background technique [0002] The structure of the existing torque wrench generally includes a hollow rod, and force applying rods and adjustment handles respectively arranged at opposite ends of the hollow rod. A tripping mechanism and a reset elastic member are arranged between the force applying rod and the adjusting handle in the hollow rod body. The adjusting handle can be pushed against the reset elastic member by means of the rotating action, so as to change the pre-force on the reset elastic member and adjust the preset torque value. The tripping mechanism can generate a tripping action when the torque applied to the force rod is greater than the preset torque value, so as to limit the transfer of torque from the force application rod to the workpiece, and the tripping mechanism knocks on the hollow rod ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B23/14B25B23/00B25B13/48
CPCB25B23/14B25B23/00B25B13/48B25B23/141B25B23/1427B25B23/16
Inventor 陈泰宏
Owner INFAR IND CO LTD
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