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Torque spanner with warning function

A torque wrench and functional technology, applied in the field of wrenches, can solve the problems of expensive wrenches and broken bolt heads, and achieve the effects of simple structure, avoiding excessive spring compression, and convenient use.

Inactive Publication Date: 2019-05-31
LISHUI YIFANJIA MOLD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention solves the problem that the wrench in the prior art often breaks the bolt head due to excessive force during use, and the price of the existing wrench with warning function is relatively expensive

Method used

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  • Torque spanner with warning function
  • Torque spanner with warning function
  • Torque spanner with warning function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment 1: as Figure 6-8 , the patent of the present invention is, for example, that the bolt specification is M10*1.5P, the bolt grade is 8.8, and the minimum breaking torque is set to 66N.m. , when the force is applied to the wrench from right to left, the bolt will give force to the torque ring from left to right, thereby driving the torque ring to rotate from left to right, and the rotation of the torque ring will drive the top block to rotate, so that the top block compresses the spring, When the force on the wrench gradually increases, the more the spring is compressed by the top block pair, the greater the rotational displacement of its torsion ring, and the indicating arrow will continuously move from left to right. Since there is an indicating plate under the indicating arrow, the position of the arrow will move When moving from the indication area of ​​the force application range to the indication area of ​​the force application range, stop exerting force....

Embodiment 2

[0040] Embodiment 2: as Figure 9-11 , the bolt specification is M10*1.5P, the bolt grade is 12.9, and the minimum breaking torque is set to 90N.m; When the force is applied from right to left, the bolt will give the torque circle a force from left to right, which will drive the torque circle to rotate from left to right, and the rotation of the torque circle will drive the top block to rotate, so that the top block will compress the spring. When it gradually increases, the more the spring is compressed by the top block pair, the greater the rotational displacement of its torsion ring, and the indicating arrow will continue to move from left to right. Since there is an indicating plate under the indicating arrow, the position of the arrow moves from the range where the force can be applied. When the indication area moves to the indication area of ​​the non-appliable force range, it is necessary to stop exerting force. If you continue to exert force, the arrow position will mov...

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PUM

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Abstract

The invention discloses a torque spanner with a warning function. The torque spanner comprises a spanner body. The torque spanner is characterized in that a double offset ring spanner head is arrangedat one end of the torque spanner and comprises a mounting hole and an accommodating cavity; a torsion ring is arranged in the mounting hole; a propping block is arranged at the lower part of the torsion ring and arranged on one side of the accommodating cavity; a spring is arranged on the other side of the accommodating cavity; one end of the spring is propped to the propping block; and the otherend of the spring is propped to the inner wall surface of the accommodating cavity. The torque spanner is simple in structure, convenient to use and low in cost and can play a warning function; and astop point is arranged inside, so that the overload of parts which is effectively prevented, and a spring failure caused by excessive compression on the spring is avoided.

Description

technical field [0001] The invention relates to a wrench, in particular to a torque wrench provided with a warning function. Background technique [0002] At present, during the use of the wrench, the bolt head is often broken due to excessive force. Most of the existing wrenches with warning function are electronic warning devices, and the price of this kind of wrench is relatively expensive. [0003] The object of the present invention is to provide a torque wrench with a warning function. [0004] The invention solves the problem that the wrench in the prior art often breaks the bolt head due to excessive force during use, and the price of the existing wrench with warning function is relatively expensive. Contents of the invention [0005] The technical solution of the present invention is: a torque wrench with a warning function, including a wrench body, one end of the wrench is a ring wrench head, and the ring wrench head includes a mounting hole and an accommodating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/56B25B23/142
CPCB25B13/56B25B23/1427
Inventor 华巧波
Owner LISHUI YIFANJIA MOLD TECH CO LTD