CN205025955U - Expansion sleeve - Google Patents

Abstract

The utility model discloses an expansion sleeve, including the cover body, to overlap the body and form by lower plate and punch holder, the lower plate top is equipped with first ring of groove, and the punch holder below is equipped with second circle groove, and the second encloses the groove card and places first ring of inslot in, and the lower plate all is equipped with the hole with the punch holder periphery, the downthehole screw of installing, the hole week edge of punch holder is equipped with one deck rubber circle, and the outside of the cover body is equipped with the overcoat, and just the inboard of the cover body is equipped with the endotheca, and the endotheca outside is designed for the tapering, and the inboard of endotheca is equipped with a plurality of cards. The utility model has the characteristics of a lifting surface area is little, laborsaving, long service life.

Description

Expansion sleeve

Technical field

The utility model relates to a kind of expansion sleeve.

Background technique

Expansion sleeve is a kind of parts for mechanical connection, make to produce between female surface pressure and frictional force and realize by tightening high-strength bolt the coupling gear that load transmits, at present, expansion sleeve on market is varied, different, and due to huge torsion, make expansion sleeve short for working life, serious wear, and lower with axle tightness, unstable when causing work.

Summary of the invention

The purpose of this utility model is to overcome above deficiency, provides a kind of lifting surface area little, laborsaving, the expansion sleeve of long service life.

The purpose of this utility model is achieved through the following technical solutions: a kind of expansion sleeve, comprise body, body is made up of die holder and punch holder, the first ring recess is provided with above die holder, the second ring recess is provided with below punch holder, second ring recess is placed in described first ring recess, die holder and punch holder periphery are equipped with hole, in hole, screw is installed, the hole periphery of punch holder is provided with one deck rubber ring, and the outside of body is provided with overcoat, and the inner side of body is provided with inner sleeve, be taper design outside inner sleeve, and the inner side of described inner sleeve is provided with multiple card.

Further improvement of the utility model is: overcoat and inner sleeve are non-closed, and opening designs.

Further improvement of the utility model is: the centre of inner sleeve is plane, and two ends are taper design.

The utility model compared with prior art has the following advantages: dismantle overall convenient when the design use in hole terminates rear or cleaning, rubber layer can effectively be protected at expansion sleeve effects on surface when regulating, reduce wear, improve working life, shorten the replacement cycle, save user cost, the setting of card makes expansion sleeve operationally strengthen following the tightness of axle, strengthen stability, and the conical surface design of inner sleeve makes long-pending inside hand diminishing, and identical power can produce larger pressure and frictional force, time saving and energy saving, increase work efficiency, save job costs, use efficient and convenient.

accompanying drawing illustrates:

Fig. 1 is schematic diagram of the present utility model;

Fig. 2 is side view of the present utility model;

Fig. 3 is plan view of the present utility model;

Fig. 4 is the utility model inner sleeve schematic diagram;

Number in the figure: 1-body, 2-die holder, 3-punch holder, 4-first ring recess, 5-second ring recess, 6-hole, 7-overcoat, 8-inner sleeve, 9-card.

embodiment:

In order to deepen understanding of the present utility model, below in conjunction with example 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. 1-4 shows a kind of mode of execution of this practical expansion sleeve, a kind of expansion sleeve, comprise body 1, body 1 is made up of die holder 2 and punch holder 3, the first ring recess 4 is provided with above die holder 2, the second ring recess 5 is provided with below punch holder 3, second ring recess 5 is placed in the first ring recess 4, die holder 2 and punch holder 3 periphery are equipped with hole 6, in hole 6, screw is installed, hole 6 periphery of punch holder 3 is provided with one deck rubber ring, the outside of body 1 is provided with overcoat 7, and the inner side of body 1 is provided with inner sleeve 8, it is taper design outside inner sleeve 8, and the inner side of inner sleeve 8 is provided with multiple card 9, overcoat 7 and inner sleeve 8 are non-closed, opening designs, the centre of inner sleeve 8 is plane, two ends are taper design.

Utility model works principle: be placed in the first ring recess 4 by the second ring recess 5, thus die holder 2 is connected with punch holder 3, forms body 1, by being fixed in screw member insertion hole 6, again inner sleeve 7 and overcoat 8 are installed, during dismounting, screw to be back-outed hole 6, axle is contacted with inner sleeve 7, prevents the unstable situation of the smooth generation of surface of contact by card 9.

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 (3)

1. an expansion sleeve, comprise body (1), it is characterized in that: described body (1) is made up of die holder (2) and punch holder (3), described die holder (2) top is provided with the first ring recess (4), described punch holder (3) below is provided with the second ring recess (5), described second ring recess (5) is placed in described first ring recess (4), described die holder (2) and described punch holder (3) periphery are equipped with hole (6), described hole is provided with screw in (6), hole (6) periphery of described punch holder (3) is provided with one deck rubber ring, the outside of described body (1) is provided with overcoat (7), and the inner side of described body (1) is provided with inner sleeve (8), described inner sleeve (8) outside is taper design, and the inner side of described inner sleeve (8) is provided with multiple card (9).

2. expansion sleeve according to claim 1, is characterized in that: described overcoat (7) and described inner sleeve (8) are non-closed, and opening designs.

3. expansion sleeve according to claim 1, is characterized in that: the centre of described inner sleeve (8) is plane, and two ends are taper design.