CN205025952U

CN205025952U - Expansion sleeve

Info

Publication number: CN205025952U
Application number: CN201520732941.4U
Authority: CN
Inventors: 周兴林; 周小春
Original assignee: Taizhou Yihua Machinery Parts Co Ltd
Current assignee: Taizhou Yihua Machinery Parts Co Ltd
Priority date: 2015-09-22
Filing date: 2015-09-22
Publication date: 2016-02-10
Anticipated expiration: 2025-09-22

Abstract

The utility model relates to an expansion sleeve, including lower terminal surface, be equipped with the up end on the lower terminal surface, lower terminal surface has the endotheca with inside the overlapping of up end to be put in, and is equipped with the breach, all is equipped with 6 big screw holes on lower terminal surface and the up end, is equipped with 3 little screw holes on the up end between 6 big screw holes. The utility model has the advantages of reduce manpower resources, simple process, simple structure, the cost of manufacture is low, and compact structure is easy to assemble, the torsional forces error is little.

Description

A kind of expansion sleeve

Technical field

The utility model relates to a kind of expansion sleeve.

Background technique

The part comparison of expansion sleeve is many, and installing/dismounting is cumbersome, adds artificial and cost.In an assembling process, unless you give your whole attention to it, the torque force error of generation can be larger.

Summary of the invention

The purpose of this utility model is to overcome above deficiency, provide that a kind of structure is simple, fabricating cost is low, compact structure, conveniently to install, a kind of expansion sleeve that torque force error is little.

The purpose of this utility model is achieved through the following technical solutions: a kind of expansion sleeve, comprises lower end surface, and lower end surface is provided with upper-end surface, and lower end surface and upper-end surface internal sleeve have inner sleeve, inside put and are provided with breach.

Further improvement of the utility model is: lower end surface and upper-end surface are equipped with 6 major thread holes, upper-end surface is provided with 3 minor thread holes between 6 major thread holes.

Further improvement of the utility model is: the upper and lower two ends of inner sleeve are equipped with certain taper.

The utility model compared with prior art has the following advantages:

The equal non-notch in lower end surface and upper-end surface, simplicity of design, structure is simple; Lower end surface and upper-end surface internal sleeve have inner sleeve, inside put and be provided with breach, the upper and lower two ends of inner sleeve are equipped with certain taper, by the carrying of inner sleeve buffering realizable force, the intermediate portion of inner sleeve can well be engaged with lower end surface and upper-end surface, realize tightly swollen, without the need to installing outer cutting ferrule again outside upper-end surface again and lower end surface, simplicity of design, rational in infrastructure; Lower end surface and upper-end surface are equipped with 6 major thread holes, upper-end surface is provided with 3 minor thread holes between 6 major thread holes, convenient location, is convenient to installation and removal.

accompanying drawing illustrates:

Fig. 1 is structural representation of the present utility model;

Number in the figure: 1-lower end surface, 2-upper-end surface, 3-inner sleeve, 4-breach, 5-major thread hole, 6-minor thread hole.

embodiment:

In order to deepen understanding of the present utility model, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, and this embodiment, only for explaining the utility model, does not form the restriction to the utility model protection domain.

As Fig. 1 shows a kind of mode of execution of a kind of expansion sleeve of the utility model, a kind of expansion sleeve, comprises lower end surface 1, and lower end surface 1 is provided with upper-end surface 2, lower end surface 1 and upper-end surface 2 all non-notch, simplicity of design, and structure is simple; Lower end surface 1 and upper-end surface 2 internal sleeve have inner sleeve 3, and inner sleeve 3 is provided with breach 4, and inner sleeve about 3 two ends are equipped with certain taper, by the carrying of inner sleeve buffering realizable force, the intermediate portion of inner sleeve 3 can well be engaged with lower end surface and upper-end surface, realize tightly swollen, rational in infrastructure; .Lower end surface 1 and upper-end surface 2 are equipped with 6 major thread holes 5, upper-end surface 2 is provided with 3 minor thread holes 6 between 6 major thread holes, convenient location, is convenient to installation and removal.Inner sleeve about 3 two ends are equipped with certain taper, without the need to installing outer cutting ferrule again outside upper-end surface again and lower end surface, simplicity of design, and minimizing cost.

The foregoing is only and mode of execution of the present utility model is described; be not limited to the utility model; for a person skilled in the art; all within spirit of the present utility model and principle; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims

1. an expansion sleeve, comprise lower end surface (1), it is characterized in that: described lower end surface (1) is provided with upper-end surface (2), described lower end surface (1) and upper-end surface (2) internal sleeve have inner sleeve (3), described inner sleeve (3) is equipped with certain taper in two ends up and down, described inner sleeve (3) is provided with breach (4), described lower end surface (1) and upper-end surface (2) is equipped with 6 major thread holes (5), is provided with 3 minor thread holes (6) between described upper-end surface (2) upper 6 major thread holes.