Adjustable wrench self-adaptive to nut size

Abstract

The invention discloses an adjustable wrench self-adaptive to the size of a nut, and relates to the technical field of mechanical tools. The wrench comprises a wrench assembly, a fixing assembly and a supporting frame. The wrench assembly is in sliding fit with the fixing assembly; the wrench assembly comprises a wrench body, a first annular gear rack, a spring connecting piece and a second annular gear rack. The wrench body is fixedly mounted on the inner wall of the first annular gear rack; the first annular gear rack and the second annular gear rack are fixedly connected through a spring connecting piece; the two supporting frames are in sliding fit with a movable assembly. And the movable component is inserted and matched with the fixed component. After the nut is clamped and fixed through the wrench assembly, the wrench assembly is reset, the handle is rotated to drive the rotating gear to rotate, and the wrench assembly is driven to rotate together with the nut, so that the fixing assembly, the handle assembly and the nut move up and down along the supporting frame together, rapid screwing of the nut is achieved, the working efficiency is improved, and meanwhile the labor intensity of workers is reduced. And the operation safety is ensured.

Description

technical field [0001] The invention belongs to the technical field of mechanical tools, in particular to an adjustable wrench with an adaptive nut size. Background technique [0002] A wrench is a commonly used installation and removal tool. It is a hand tool that uses the principle of leverage to twist bolts, screws, nuts, and other openings or casings that are threaded to hold bolts or nuts. The wrench is usually made of carbon or alloy structural steel; the wrench is usually made with an opening or a hole for clamping the bolt or nut at one or both ends of the handle. When using it, an external force is applied to the handle along the thread rotation direction to Twist a bolt or nut [0003] However, for the screwing of nuts on long screw rods and threaded columns, the use of conventional wrenches requires timely adjustment of the screwing direction, which is time-consuming and labor-intensive, especially for special working environments such as high altitude or the bot...

AI Technical Summary

Problems solved by technology

[0003] However, for the screwing of nuts on long screw rods and threaded columns, the use of conventional wrenches requires timely adjustment of the screwing direction, which is time-consuming and labor-intensive, especially for special working environments such as high altitude or the bottom of a lathe. For screwing nuts of different sizes Turning, you need to carry wrenches of various sizes. During use, it is inconvenient to turn the nuts when working at heights, and it is prone to falling objects; it is more inconvenient to turn the nuts at the bottom of the lathe; it affects work efficiency.

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