An Allen key that can be used in tight spaces

Abstract

The invention discloses an internal hexagonal wrench applicable to a narrow space. The internal hexagonal wrench is characterized in that a matched outer cover sleeves the outer side of a connecting block at the upper part of a hexagonal socket, wherein at least two radial through holes and a sector hole are formed in the outer cover; a central rotating block in which a radial central hole is formed is mounted in the inner center position of the outer cover in a sleeving manner; a matched handle is mounted in the radial through holes and the sector hole in the outer cover and the radial central hole. According to the internal hexagonal wrench applicable to the narrow space, the handle is inserted into a rotating main body in the radial direction, and the axial height of the internal hexagonal wrench can be compressed, so as to enable the wrench to be applied to the narrow space, and as a result, the use stability of the wrench can be improved; if the handle cannot be rotated in a barrier position, the handle can be simply inwards pushed into the radial through holes and then rotated again, the operation is convenient, and the working efficiency can be obviously improved.

Description

technical field [0001] The invention belongs to the technical field of hexagonal wrench, and in particular relates to a multifunctional hexagonal wrench which can be used for continuous turning in a narrow space. Background technique [0002] In technical fields such as water conservancy and hydropower, a variety of electrical equipment is usually assembled and fixed by hexagon socket head bolts. Due to the small fit clearance of equipment design, hexagon socket head bolts have the concealment feature of being embedded in the frame, and are very commonly used. For example, the pumped-storage power station is a reversible pump-turbine-generator-motor unit, with compact pipeline layout and narrow space. In the parts where some hexagon socket bolts are fastened, during normal maintenance, the normal hexagon wrench cannot work due to size limitations or barely rotates at a small angle. inconvenient. However, at present, most of the existing wrenches for hexagon socket bolts ar...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the hexagon socket bolt currently used in a narrow space does not have a reasonable and feasible wrench, and the existing hexagon wrench needs to be pulled out and inserted repeatedly when adjusting the angle, so as to provide a practical screwdriver that can be used in a narrow space. Continuously rotating Allen wrench

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