Inner hexagonal screw fastener

Abstract

The invention relates to the field of inner hexagonal screw fasteners, in particular to an inner hexagonal screw fastener which comprises a telescopic mechanism, a hollow barrel, a stretching mechanism and a fastening mechanism and is used for fastening inner hexagonal screws. When common traditional inner hexagonal screw fasteners are used, many wrenches need to be carried due to different sizes of the inner hexagonal screw fasteners, in the using process, and due to the fact that too many inner hexagonal screw fasteners are arranged in a bag, it is troublesome to find out one size. According to the improved inner hexagonal screw fastener, a straight gear rotates to drive a telescopic rod to stretch out and draw back, then a wrench is driven to adjust different sizes, after the sizes are adjusted, the tightness degree is adjusted through a first nut on a broken nut, the telescopic rod is then clamped, a rotating handle drives the wrench to adjust the tightness of the inner hexagonal screw fastener, during use, a plurality of inner hexagonal screws with different sizes can be adjusted only with one wrench, and convenience and effectiveness are achieved during use.

Description

technical field [0001] The invention relates to the field of inner hexagonal screw fasteners, in particular to an inner hexagonal screw fastener. Background technique [0002] A wrench is a commonly used installation and disassembly tool. It is a hand tool that uses the principle of leverage to twist the socket or open fastener of a screw or nut. The wrench is usually made of carbon or alloy structural steel, and the wrench is usually at one end of the handle. Or both ends are made with openings or sleeve holes for clamping screws or nuts. When using, an external force is applied to the handle along the direction of thread rotation, and the screws or nuts can be twisted. Generally, the traditional hexagon socket screw fasteners are often used when they are in use. Due to the different sizes, it is very inconvenient to bring a lot of wrenches, and it is a waste of time to find them. One wrench can only adjust one size of hexagon socket screws. When using it, there are too man...

AI Technical Summary

Problems solved by technology

[0002] A wrench is a commonly used installation and disassembly tool. It is a hand tool that uses the principle of leverage to twist the socket or open fastener of a screw or nut. The wrench is usually made of carbon or alloy structural steel, and the wrench is usually at one end of the handle. Or both ends are made with openings or sleeve holes for clamping screws or nuts. When using, an external force is applied to the handle along the direction of thread rotation, and the screws or nuts can be twisted. Generally, the traditional hexagon socket screw fasteners are often used when they are in use. Due to the different sizes, it is very inconvenient to bring a lot of wrenches, and it is a waste of time to find them. One wrench can only adjust one size of hexagon socket screws. When using it, there are too many fasteners of hexagon socket screws in the bag. Finding one size is very troublesome

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