Combined sleeve

Abstract

The invention discloses a combined sleeve, and aims to provide the combined sleeve which can be used for an electric wrench to conveniently disassemble / lock nuts of different types, and can be used for effectively improving the problem that outer side edges of an inner sleeve in the inner side of the combined sleeve deform, thus the combined sleeve cannot be used normally due to the situation thatnormal sliding between sleeves cannot be achieved. The combined sleeve comprises an outer sleeve and a first inner sleeve; a first nut locking hole used for being matched with a nut is formed in thefirst end of the outer sleeve; the cross section of the first nut locking hole is in a regular polygon shape; the outer contour of the cross section of the first inner sleeve is also in a regular polygon shape; the first inner sleeve is inserted into the first nut locking hole and can slide in the axial direction of the first nut locking hole; of all the outer side surfaces of the first inner sleeve, a connecting edge between every two adjacent outer side surfaces is defined as the outer side edge of the inner sleeve; and a side edge deformation reserved containing groove extending in the direction of the outer side edges of the inner sleeve is formed in each outer side edge of the inner sleeve.

Description

technical field [0001] The invention relates to the field of electric wrenches, in particular to a combined sleeve. Background technique [0002] During the operation of the current electric wrench, for different types of nuts, it is necessary to replace the corresponding type of socket, which not only makes the operation inconvenient, but also affects the working efficiency. [0003] For this reason, some inventors have designed combined sleeves, which combine multiple sleeves of different sizes and models, and the sleeves of each different sizes and models are nested together sequentially from the inside to the outside; although such combined sleeves are convenient In order to use it, the work efficiency can be improved; but it has the following disadvantages: [0004] Since there will inevitably be a certain gap between the sleeves in the combined sleeve, in the process of using a sleeve located on the inner side to lock / remove the nut (taking the sleeve located on the i...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a combined sleeve, which can not only facilitate the disassembly / locking of nuts of different types by electric wrenches, but also can effectively improve the deformation caused by the outer edge of the inner sleeve of the inner sleeve in the combined sleeve. , causing the sleeves to fail to slide normally, which affects the problem that the combined sleeve cannot be used normally

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