Adjustable crank handle

Abstract

The invention relates to an adjustable crank handle. The adjustable crank handle comprises a handle part and a handle head part, wherein the handle part comprises a sleeve and a handle core which is mounted in the sleeve and is matched with the sleeve in a sliding manner; the shape of the handle core is matched with the shape of a hole formed in sleeve; an adjustable handle is arranged on the handle core; and the sleeve is provided with an adjusting hole which is matched with the adjustable handle and is used for adjusting length of the handle core, and a fixing part for fixing a displacement position of the adjustable handle. According to the adjustable crank handle provided by the invention, the depth and length of the crank handle can be adjusted through the adjustable handle, so that the crank handle can be suitable for almost equipment including a handcart switch, a hand-operated disconnecting link and the like; and a condition that a plurality of crank handles need to be carried in a working process is avoided, and the weight and size of tools needing to be carried can be greatly reduced.

Description

Technical field [0001] The invention relates to a crank, in particular to an adjustable crank. Background technique [0002] Crank handles are mainly used for handcart switches and hand-cranked guillotines in substations, and can also be used in other industries such as machine tools and hand-cranked diesel engines. At present, there is no unified standard for cradle handles in substations. Because different manufacturers and different types of equipment require different cradles, some equipment has different requirements for the depth of the female cradle and the length of the referendum cradle. Carrying multiple cradles at the same time, due to the large size and heavy weight of the cradles, brings a great physical burden to the staff, and the phenomenon of wearing the wrong cradles often occurs, resulting in delays in work progress. Summary of the invention [0003] The purpose of the present invention is to provide an adjustable crank, which is suitable for most handcart swit...

AI Technical Summary

Problems solved by technology

At present, there is no uniform standard for the crank handles in the substation. Because different manufacturers and different types of equipment require inconsistent crank handles, some equipment has different requirements for the depth of the female crank handle and the length requirements for the referendum crank handle. Carrying multiple cranks at the same time, due to the large size and heavy weight of the cranks, brings a lot of physical burden to the staff, and often there is a phenomenon of carrying the wrong cranks, which leads to delays in work progress

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