CN101332592A

CN101332592A - Multi-layer sleeve structure

Info

Publication number: CN101332592A
Application number: CNA2007101279318A
Authority: CN
Inventors: 谢智庆
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-06-26
Filing date: 2007-06-26
Publication date: 2008-12-31

Abstract

The invention discloses a multi-layer sleeve structure which comprises an external sleeve and a neck bush; a port of the neck bush is provided with a buffer segment, the buffer segment coats the port of the external sleeve; an anti-skid device is arranged between the external sleeve and the neck bush; the anti-skid device comprises a plurality of grooves arranged on the external sleeve, and the corresponding flanges arranged on the neck bush; the anti-skid device comprises a plurality of flanges arranged on the external sleeve, and the corresponding grooves arranged on the neck bush; the flanges take the shape of arc, rectangle or triangle, the grooves are the corresponding shapes; the external sleeve is made of steel material and the neck bush is made of aluminum material. The multi-layer sleeve structure causes steady and reliable integration of the external sleeve and the neck bush and avoids directly impacting the working face in operation, so as to prolong the service life.

Description

Multi-layer sleeve structure

Technical field

The present invention relates to a kind of hand-operated tools, relate in particular to a kind of urceolus and combine with neck bush firmly really, when operation, avoid directly clashing into working face, the multi-layer sleeve structure of long service life.

Background technology

No. the 6397706th, existing sleeve such as U.S. Patent number; " PROTECTIVE SOCKETS "; mainly be that sleeve is divided into urceolus and neck bush two parts, its urceolus is to make with the steel of high rigidity, and neck bush is then made for the material low than urceolus hardness; and this urceolus is sheathed on the outside of neck bush; only make the protuberance of neck bush one end stretch urceolus one end, whereby, sleeve in use; this protuberance can form protection, avoids directly clashing into working face.

Yet, the contact-making surface of its urceolus of existing sleeve and neck bush is to be cylindric, be all smooth cambered surface between the two, and none effective impetus, and sleeve is to bear corresponding reaction force when the switching screw tightening, therefore sleeve neck bush part especially, will produce twist distortion to a certain degree, like this then the bonding state between destructible urceolus and the neck bush more, so existing sleeve in use for some time, is easy to generate the shortcoming of urceolus and neck bush slippage, product is shorter service life, as a complete unit, its poor practicability.

Summary of the invention

Technical problem underlying to be solved by this invention is, it is not good to overcome between existing urceolus and the neck bush conjugation, easily shortcoming such as slippage separation, and provide a kind of multi-layer sleeve structure, it is really firm to make urceolus combine with neck bush, avoids directly clashing into working face, long service life when operation.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of multi-layer sleeve structure comprises a urceolus and a neck bush; It is characterized in that the port of this neck bush has breeze way, this breeze way coats the port of urceolus.

Aforesaid multi-layer sleeve structure wherein is provided with shoe between urceolus and the neck bush.

Aforesaid multi-layer sleeve structure, wherein shoe is included in several grooves that urceolus is provided with, and neck bush is provided with corresponding flange.

Aforesaid multi-layer sleeve structure, wherein shoe is included in several flanges that urceolus is provided with, and neck bush is provided with corresponding groove.

Aforesaid multi-layer sleeve structure, its flange are arc, rectangle or triangle, and groove is corresponding figure.

Aforesaid multi-layer sleeve structure, wherein urceolus is a steel matter; Described neck bush is an aluminium material.

From the above, multi-layer sleeve structure of the present invention not only has the effect that prevents the gouging abrasion of sleeve own, and longer service life improves the market competitiveness.Therefore the present invention has novelty, creativeness, practicality.

The invention has the beneficial effects as follows that it is really firm to make urceolus combine with neck bush, when operation, avoid directly clashing into working face, long service life.

Description of drawings

The present invention is further described below in conjunction with drawings and Examples.

Fig. 1 is the perspective exploded view of first embodiment of the invention multi-layer sleeve structure.

Fig. 2 is the sectional view of first embodiment of the invention multi-layer sleeve structure.

Fig. 3 is the cutaway view of GH line segment shown in Figure 2.

Fig. 4 is the perspective exploded view that the present invention is provided with shoe, and this figure demonstrates the flange that urceolus is provided with rectangle, and neck bush is provided with corresponding groove.

Fig. 5 is the sectional view of second embodiment of the invention multi-layer sleeve structure.

Fig. 6 is the sectional view of third embodiment of the invention multi-layer sleeve structure.

The number in the figure explanation:

1---sleeve 10---urceolus

11---accommodation space 111---open port

112---socket

13---flange 20---neck bush

21---breeze ways 22---are pulled port

23---cover access slot 25 grooves

30---cushion collar

The specific embodiment

A kind of multi-layer sleeve structure of the present invention, see also Fig. 1 to shown in Figure 3, it is multi-layer sleeve structure first embodiment of the present invention, and this sleeve 1 mainly includes a urceolus 10 and a neck bush 20, this urceolus 10 is hard steel matter, and neck bush 20 is the relatively poor aluminium material of hardness.

This urceolus 10 generally is a hollow cylindrical, and its inside has accommodation space 11 and is installed with for neck bush 20, and the top of this accommodation space 11 is an open port 111, and the bottom then has a socket 112; The periphery of this accommodation space 11 is provided with several flanges 13.

It is one cylindric that this neck bush 20 generally is, and its outside, top is the breeze way 21 with evagination, the inboard on top then for pull port 22 can with the screw tightening socket, the bottom of this neck bush 20 is formed with a cover access slot 23 and can supplies spanner sheathed; Neck bush 20 peripheries then are equipped with and urceolus 10 vertical flange 13 corresponding longitudinal flutings 25; This neck bush 20 is located in the accommodation space 11 of urceolus 10, and forms concavo-convex the combination by the flange 13 of shoe with groove 25, as shown in Figure 4, has interaction force, makes urceolus 10 and neck bush 20 combine closely and does not slide;

The present invention is when assembling, make this neck bush 20 have an end of cover access slot 23, be placed in the accommodation space 11 towards urceolus 10

open ports

111,21 of the breeze ways of this neck bush 20 are covered in open port 111 peripheries of urceolus 10, and the state after assembling is finished as shown in Figure 2;

Can also provide axial contact-making surface by breeze way 21 between the urceolus 10 of this sleeve 1 and the neck bush 20, and reach the effect that increases bond strength.

See also shown in Figure 5ly, it is second embodiment of multi-layer sleeve structure of the present invention, and wherein primary clustering is identical with first embodiment, does not repeat them here, and followingly only with regard to different structure it is described.

This urceolus 10 is made with the relatively poor aluminium material of hardness, 20 of this neck bush are made with harder steel matter, and make that this urceolus 10 is sheathed on neck bush 20 pull port 22 outsides, and the open port 111 that makes this urceolus 10 be higher than neck bush 20 pull port 22, the effect of buffering is provided between neck bush 20 and working face.

See also shown in Figure 6ly, it is the 3rd embodiment of multi-layer sleeve structure of the present invention, and wherein primary clustering is identical with first embodiment, does not repeat them here, and followingly only with regard to different structure it is described.

This urceolus 10 and neck bush 20 at open port 111, pull port 22 and be arranged with the relatively poor cushion collar of a hardness 30.

The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.

In sum, the present invention is on structural design, use practicality and cost benefit, it is required to meet industry development fully, and the structure that is disclosed also is to have unprecedented innovation structure, have novelty, creativeness, practicality, the regulation that meets relevant patent of invention important document is so mention application in accordance with the law.

Claims

1 one kinds of multi-layer sleeve structures comprise a urceolus and a neck bush; It is characterized in that the port of this neck bush has breeze way, this breeze way coats the port of urceolus.

2 multi-layer sleeve structures according to claim 1 is characterized in that being provided with shoe between described urceolus and the neck bush.

3 multi-layer sleeve structures according to claim 2 it is characterized in that described shoe is included in several grooves that urceolus is provided with, and neck bush are provided with corresponding flange.

4 multi-layer sleeve structures according to claim 2 it is characterized in that described shoe is included in several flanges that urceolus is provided with, and neck bush are provided with corresponding groove.

5 according to claim 3 or 4 described multi-layer sleeve structures, it is characterized in that described flange is arc, rectangle or triangle, and groove is corresponding figure.

6 multi-layer sleeve structures according to claim 1 is characterized in that described urceolus is a steel matter; Described neck bush is an aluminium material.