Locking type torque wrench with tips

Abstract

The invention provides a locking type torque wrench with hints. The wrench includes a main rod body, a handle, a plurality of rollers, a rotating ring and a pressing part. There are rollers among the plurality of rollers, and the main rod body is inserted into the handle so as to be able to rotate and stretch relative to the handle, so as to adjust the working torsion of the driving head. Wherein the rotating ring is sheathed on the plurality of rollers on the handle extension tube, and the rotating ring can rotate relative to the extension tube to a locking position and a releasing position. The pressing part has assembly parts which can be respectively positioned on both sides of the extension tube and normally buckles one end of the roller. When the roller is in the rising state, it is pressed to the main body by the pre-force generated by a supporting pressing part. The rod body, and when it meets the limit groove, it is pre-pressed and sinks instantly, so as to form a sense of paragraph when the handle and the main rod body rotate relative to each other.

Description

technical field [0001] The invention relates to a torque wrench, in particular to a locking type torque wrench with hints. Background technique [0002] As shown in China Taiwan Patent No. M515937, it discloses a locking ring structure of a torque wrench. Set a locking ring. The locking ring has an inner locking ring and an outer locking ring. The inner locking ring has an escape groove corresponding to each positioning piece, and the inner locking ring has a limiting groove corresponding to the limiting piece. There are two limiting blocks in the limiting groove. And when the locking ring rotates relative to the main body, the limiting member can be selectively engaged with any limiting block. In addition, several fastening blocks are protrudingly provided on the outer periphery of the inner locking ring, and are mutually fastened by several fastening grooves on the inner periphery of the outer locking ring. Therefore, the user can rotate the locking ring in the loose st...

AI Technical Summary

Problems solved by technology

However, although the above-mentioned scale marks are used as the basis for torque adjustment, when the marked scale is only confirmed visually, the actual torque value may have a significant error from the visually recognized torque value, resulting in confusion when adjusting the torque. The problem of inaccuracy, especially when the aforementioned scale marks become blurred due to wear, the inaccuracy of the user's adjustment torque value is even more serious

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