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Torque wrench

A technology of torque wrench and handle, applied in the field of torque wrench, can solve problems such as laborious setting of torque, and achieve the effect of reducing elastic coefficient

Pending Publication Date: 2021-05-14
杭州倍力耐工具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is: the technical problem that the current preset torque wrench is laborious when setting the torque

Method used

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  • Torque wrench
  • Torque wrench
  • Torque wrench

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A torque wrench, see Figure 1 to Figure 5 , including handle 1, working head 4, connecting head 6, hand wheel 2, plug 11, screw rod 12, sleeve 9, pointer 7, spring 10, top ring 13, roller 14, lever 15, pin 8 and power transmission pin 16. Both the working head 4 and the handle 1 are tubular, the rear end of the working head 4 and the front end of the handle 1 are processed with through holes along the horizontal direction, the bottom of the front part of the working head 4 is processed with working holes along the vertical direction, and the front part of the working head 4 The middle part of the connecting head is processed with a straight groove extending in the vertical direction, the two ends of the power transmission pin 16 are snapped into the straight groove, the bottom of the connecting head 6 is processed with a connecting part, the middle part of the connecting head 6 is connected with the working hole in rotation, the top of the connecting head 6 is enlarged,...

Embodiment 2

[0022] A torque wrench, see Figure 6 to Figure 8 , including handle 1, working head 4, connecting head 6, sleeve 9, pointer 7, push ring 21, pressure rod 18, unlock button 19, spring 10, top ring 13, roller 14, lever 15, pin 8 and force transmission The pin 16, the working head 4 and the handle 1 are all tubular, the working head 4 rear end and the handle 1 front end are all processed with through holes along the horizontal direction, the bottom of the working head 4 front is processed with a working hole in the vertical direction, and the front of the working head 4 The middle part of the part is processed with a straight groove extending in the vertical direction, and the two ends of the power transmission pin 16 are snapped into the straight groove. The bottom of the enlarged part at the top of the head 6 is processed with a spherical surface, the spherical surface of the enlarged part at the top of the connecting head 6 abuts against the inner wall of the working head 4, ...

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PUM

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Abstract

The invention relates to the technical field of manual tools, in particular to a torque wrench. The torque wrench comprises a handle, a working head, a connector, a hand wheel, a plug, a screw rod, a sleeve, a pointer, a spring, an ejection ring, a rolling wheel, a lever, a pin and a force transmission pin, through holes are formed in the rear end of the working head and the front end of the handle in a machined mode in the horizontal direction, a working hole is formed in the bottom of the front portion of the working head in a machined mode in the vertical direction, a straight groove extending in the vertical direction is formed in the middle of the front portion of the working head in a machined mode, the two ends of the force transmission pin are clamped into the straight groove, the middle of the connector is rotationally connected with the working hole, a spherical surface is arranged at the bottom of an expansion portion of the top of the connector in a machined mode, a groove connected with the force transmission pin in a clamped mode is formed in the top of the expansion portion of the top of the connector in a machined mode, the middle portion of the lever is rotationally connected with the pin, the front portion of the lever is abutted with the upper portion of the force transmission pin, the rolling wheel is rotationally installed on the front portion of the ejection ring, the rear portion of the lever is abutted with the rolling wheel, and the rear portion of the ejection ring is abutted with the spring. The torque wrench has the substantive effect that setting of the torque can be completed more easily and quickly.

Description

technical field [0001] The invention relates to the technical field of hand tools, in particular to a torque wrench. Background technique [0002] Torque is the product of force and distance. When tightening screws, bolts, nuts and other threaded fasteners, it is necessary to control the applied torque to ensure that the thread is fastened without damaging the thread due to excessive torque, and to ensure that the thread is sufficiently tightened. So use a torque wrench to do it. Preset torque wrench has preset torque value and sound device. When using, first set a required upper limit of the torque value. When the applied torque reaches the set value, the wrench will make a "click" sound or the connection of the wrench will bend a little angle, accompanied by obvious hand vibration. It means that it has been fastened and no further force is required, and it prompts to complete the work. After the force is released, all relevant parts of the wrench can be automatically re...

Claims

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Application Information

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IPC IPC(8): B25B23/14B25B23/142
CPCB25B23/14B25B23/1427
Inventor 曾琦李桂珍
Owner 杭州倍力耐工具有限公司