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A live wrench with variable force direction

A variable, live-mouth technology, applied in the field of live-mouth wrenches, can solve the problem that the wrench can only be used, and achieve the effect of convenient operation and simple structure

Active Publication Date: 2018-11-27
NORTHEASTERN UNIV LIAONING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The general purpose wrench can generally adjust the opening size according to the needs, and the special wrench can only be used for standard nuts

Method used

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  • A live wrench with variable force direction
  • A live wrench with variable force direction
  • A live wrench with variable force direction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 and Figure 4 , this embodiment is suitable for the first working condition. The space parallel to the axis of the nut to be clamped or loosened is narrow and can only accommodate a height slightly higher than that of the main body 1. The auxiliary clamping tool 3 and the auxiliary unloading tool are only located with it In the vertical direction, the variable direction force applying tool 2 also needs to turn through a large angle.

[0024] In the implementation process, firstly, the main body 1 is connected with the auxiliary unloading tool through threads, and the size of the opening is adjusted to be slightly larger than the size of the bolt or nut to be tightened or loosened; then the main body 1 is connected with the auxiliary clamping tool 3 through threads, and the auxiliary The clamping tool 3 or the auxiliary unloading tool also acts as a handle, which is convenient to ensure the required posture of the main body 1 at a long distance during t...

Embodiment 2

[0026] Such as figure 2 and Figure 4 , this embodiment is suitable for the second working condition. The space parallel to the axis of the nut to be clamped or loosened is large, but the space perpendicular to it is narrow. The auxiliary clamping tool 3 and the auxiliary unloading tool are only located in the parallel direction. The variable direction applying force tool 2 does not need to turn over a large angle.

[0027] The difference from Embodiment 1 is that a small spur gear 10 is used to drive the claw drive mechanism 8 .

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Abstract

The invention relates to a swing wrench with a variable force direction. The technical solution is as follows: it includes a main body, a variable direction force application tool, an auxiliary clamping tool and an auxiliary unloading tool. The main body includes a chuck, three claws, a claw driving mechanism, three small bevel gears, three small straight Gear and back cover, the chuck is provided with three slots, the claws are installed in the slots; the back of the claws is provided with an arc-shaped plane thread, and the claw driving mechanism is a hollow circle Disc shape, the front side of the claw driving mechanism is provided with an annular plane thread, the back side of the claw driving mechanism is a circular bevel gear, the inner edge of the claw driving mechanism is a cylindrical spur gear, and the claw The arc-shaped plane thread matches the annular plane thread of the claw driving mechanism, the small bevel gear meshes with the annular bevel gear, and the small spur gear meshes with the cylindrical spur gear; The back cover and the chuck are fixedly installed together.

Description

technical field [0001] The invention belongs to the field of hand hardware tools, and in particular relates to an adjustable pulley with variable force application direction. Background technique [0002] As a frequently used tool in life, manual wrench is usually used to tighten and loosen nuts or bolts. Manual wrenches are divided into universal wrenches and special wrenches according to their functions. General-purpose wrenches can generally adjust the opening size according to needs, and special-purpose wrenches can only be used for standard nuts. The universal wrench is also called an adjustable wrench, that is, the opening size of the wrench can be adjusted. Existing researches on adjusting the size of the opening of the wrench have flourished, but in some cases, there are certain requirements on the direction of force application. For example, in the process of car repair, the commonly used manual or electric wrench sometimes causes a lot of inconvenience, because ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/10B25B13/50B25B23/16
CPCB25B13/105B25B13/50B25B23/16
Inventor 孔祥伟陈鑫申德华
Owner NORTHEASTERN UNIV LIAONING