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Three jaw chuck type shifting wrench

A three-jaw chuck and live port technology, which is applied in the field of live port wrench, can solve the problems of low work efficiency, slow worm positioning, dislocation, etc., and achieves the effect of high adjustment efficiency and good tightening effect.

Inactive Publication Date: 2012-05-02
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the widely used adjustable wrench is composed of three parts: fixed wrench body, movable wrench body, and worm, and this kind of adjustable wrench is easy to be misaligned due to the rotation of the worm, resulting in chamfering of nuts or bolts
In addition, this kind of wrench controls the positioning of the worm slowly, and the work efficiency is low

Method used

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  • Three jaw chuck type shifting wrench
  • Three jaw chuck type shifting wrench
  • Three jaw chuck type shifting wrench

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Example 1 see figure 1 , figure 2 , image 3 , including a live wrench body 1, a handle 2 and a matching wrench 8. The movable mouth puller is a three-jaw chuck; the three-jaw chuck is composed of jaws 4, large bevel gear 5, small bevel gear 6, and chuck body 3; There are gear teeth 9 on the jaws to cooperate with the large bevel gear 5, grooves on the side of the jaws to cooperate with the chuck body 3, and small bevel gears 6 to cooperate with the large bevel gear 5; there are insertion holes 7 on the small bevel gear 6 Cooperate with the wrench 8 to control the rotation of the small bevel gear 6 through the insertion hole 7, the rotation of the small bevel gear 6 can drive the rotation of the large bevel gear 5, and then adjust the claw 4, thereby realizing the adjustment of the opening size of the movable mouth wrench. The teeth of the large bevel gear 5 are in the circular plane of the large bevel gear, and the small bevel gear 6 is vertically matched with the ...

Embodiment 2

[0021] Example 2 see figure 1 , image 3 , Figure 4 , Figure 5 , basically the same as Embodiment 1, the difference is that the teeth of the large bevel gear 5 are on the side cylindrical surface of the large bevel gear, the small bevel gear 6 is matched with the large bevel gear 5 in parallel, and the insertion hole 7 is opened on the circular plane of the chuck body 3 Inside. The insertion hole on the small bevel gear of embodiment 2 is set in the circular plane of the chuck body, which is suitable for occasions where there is not enough adjustment space for the wrench 8 on the side but there is adjustment space on the front side.

[0022] The invention is suitable for use in factories, maintenance departments and households.

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PUM

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Abstract

The invention relates to a shifting wrench, and in particular relates to a three jaw chuck type shifting wrench. The shifting wrench comprises a shifting wrench body, a handle and a matching wrench, wherein the shifting wrench body is a three jaw chuck; the three jaw chuck comprises jaws, a big bevel gear, a small bevel gear and a chuck body; detents of the jaws are formed by two planes forming an angle of 120 degrees; gear teeth are arranged on the jaws and are matched with the big bevel gear; slots are arranged at the sides of the jaws and are matched with the chuck body; the small bevel gear is matched with the big bevel gear; a patchhole is arranged on the small bevel gear; the matching wrench controls rotation of the small bevel gear via the patchhole; and the big bevel gear can be driven to rotate and then the jaws can be adjusted through rotation of the small bevel gear, thus realizing adjustment of the opening size of the shifting wrench. The shifting wrench has the advantages of high adjusting efficiency and good fastening effect. The shifting wrench is suitable to be used in the factories, maintenance departments and families.

Description

Technical field: [0001] The invention relates to an adjustable pulley, in particular to a three-jaw chuck type adjustable pulley. Background technique: [0002] No matter in industry, agriculture, transportation, family life, the live wrench is an indispensable tool, and it has been widely used for many years. [0003] At present, the widely used adjustable wrench consists of three parts: a fixed wrench body, a movable wrench body, and a worm. However, this type of wrench is prone to misalignment due to the rotation of the worm, resulting in chamfering of nuts or bolts. In addition, this type of wrench controls the positioning of the worm screw slowly, and the work efficiency is low. Therefore, be badly in need of a kind of active mouth wrench that a kind of efficient, fastening effect is good to replace it in production life. Invention content: [0004] The purpose of the present invention is to provide an adjustable pulley with high efficiency and good fastening effect...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/14
Inventor 袁金奇
Owner SHANDONG UNIV OF SCI & TECH