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Multi-layer sleeve structure

A sleeve and outer cylinder technology, applied in the field of multi-layer sleeve structure, can solve problems such as poor bonding, easy slipping and separation, and achieve the effects of improving market competitiveness, long service life, and preventing collision wear

Inactive Publication Date: 2008-12-31
谢智庆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main technical problem to be solved by the present invention is to overcome the disadvantages of poor bonding between the existing outer cylinder and the inner bushing, and to provide a multi-layer sleeve structure to combine the outer cylinder and the inner bushing. Stable and reliable, avoid direct impact on the working surface during operation, and have a long service life

Method used

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Embodiment Construction

[0029] A kind of multi-layer sleeve structure of the present invention, please refer to Figure 1 to Figure 3 As shown, it is the first embodiment of the multilayer sleeve structure of the present invention. The sleeve 1 mainly includes an outer cylinder 10 and an inner bushing 20. The outer cylinder 10 is made of hard steel, and the inner bushing 20 is Aluminum material with poor hardness.

[0030] The outer cylinder 10 is generally in the shape of a hollow cylinder, and has an accommodating space 11 inside for the inner liner 20 to accommodate. Several flanges 13 are provided on the periphery of the space 11 .

[0031] The inner liner 20 is generally cylindrical, with a convex buffer section 21 on the outer side of the top end, and a pulling port 22 on the inner side of the top end, which can be socketed with a screw. The bottom end of the inner liner 20 forms a set of The connecting groove 23 can be set for the wrench; the outer circumference of the inner bushing 20 is pr...

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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

technical field [0001] The invention relates to a hand tool, in particular to a multi-layered sleeve structure with a stable combination of an outer cylinder and an inner bush, which avoids direct impact on the working surface during operation and has a long service life. Background technique [0002] Existing sleeves such as U.S. Patent No. 6397706, "PROTECTIVE SOCKETS", mainly divide the sleeve into two parts, the outer cylinder and the inner bushing. The outer cylinder is made of high-hardness steel, and the inner bushing It is made of a material with lower hardness than the outer cylinder, and the outer cylinder is sleeved on the outside of the inner bushing, so that only the protruding part of one end of the inner bushing protrudes from one end of the outer cylinder, so that when the sleeve is in use, This protrusion creates protection against direct impact on the work surface. [0003] However, the contact surface of the outer cylinder and the inner bushing of the exi...

Claims

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Application Information

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IPC IPC(8): B25B23/00B25B13/06
Inventor 谢智庆
Owner 谢智庆
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