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wrench

A wrench and handle technology, applied in the field of wrenches, can solve the problems of difficult tool making, difficult functions, complex structure, etc., and achieve the effects of simple structure, improved work efficiency, and simplified production process

Inactive Publication Date: 2018-11-13
HANGZHOU GREAT STAR TOOLS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, it is not easy to combine ratchet and adjustable functions in one wrench, which leads to a relatively complicated structure, making tool production difficult and costly, and in addition, when the torque is large, the wrench will be damaged

Method used

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Examples

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Embodiment Construction

[0056] Such as figure 1 As shown, a wrench 1 according to an embodiment of the present invention includes: a body 2, a handle 3, a fixed wrench 4, a movable wrench 5 and a push rod 10;

[0057] The size of the handle 3 is designed to be suitable for the user to hold, and the handle 3 may include an injection molding sleeve to improve the comfort of holding.

[0058] The fixed wrench 4 is fixedly connected with the body 2 , and can also be integrally formed with the body 2 . In this embodiment, the fixed wrench 4 is integrally formed with the body 2 .

[0059] The body 2, the fixed wrench 4 and the movable wrench 5 can be made of cast steel or other high-strength materials.

[0060] Such as figure 2 As shown, the fixed wrench 4 includes a wrench surface 41, and the wrench surface 41 contacts the workpiece when the wrench is operated. The workpiece mentioned here can include any device, component or fastener that the wrench 1 can hold. A typical workpiece is Fasteners that u...

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PUM

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Abstract

The invention provides a wrench which comprises a body, a fixed jaw, a movable jaw, a slidable connecting assembly, and a handle which is rotatably connected with the handle. The movable jaw is slidably connected with the body through the slidable connecting assembly. The wrench further comprises a jaw locking mechanism which is rotatably connected with the handle. The jaw locking mechanism is used for restricting movement of the slidable connecting assembly relative to the body in a direction to the fixed jaw or departing from the fixed jaw. According to the wrench provided by the invention, the distance between the jaws can be increased so that the jaws bestrides the vertex of a workpiece and a plurality of times of continuous wrench rotation is realized, thereby improving the working efficiency of the wrench. The wrench has advantages of realizing simple structure, bearing a relatively large torque, simplifying a manufacture process and reducing manufacture cost. The wrench is internally provided with a first elastic component, thereby preventing contact between a first elastic component with greasy dirt and realizing more attractive appearance of the wrench. A worm wheel has a double-thread structure. Not only is time for adjusting the distance between the jaws reduced, but also a torque which can bear by the worm wheel is enlarged.

Description

technical field [0001] The invention relates to a wrench and belongs to the field of hand tools. Background technique [0002] An adjustable wrench generally includes a fixed wrench and an adjustable wrench for clamping the workpiece. The movable wrench can move toward or away from the fixed wrench; by adjusting the distance between the fixed wrench and the movable wrench, the wrench can clamp a series of Workpieces of different sizes can be tightened or loosened by rotating the handle. [0003] When using an ordinary adjustable wrench, the user adjusts the distance between the fixed wrench and the movable wrench, and sets the wrench on the workpiece. In most usage environments, the handle of the wrench can only be rotated at a small angle, so it needs to be carried out several times in a row. Rotate to tighten or loosen the workpiece. Between turns, it is inconvenient to pause, temporarily remove the wrench from the workpiece, and reset it on the workpiece before continui...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B25B13/14B25B13/34B25B23/00
Inventor 王暋
Owner HANGZHOU GREAT STAR TOOLS
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