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Quick screwing sleeve of double-end stud

A double-ended stud, fast technology, applied in screwdrivers, wrenches, wrenches, etc., can solve the problems of complex structure, high manufacturing cost, time-consuming, etc., and achieve the effect of improving work efficiency, compact structure, and stable performance

Inactive Publication Date: 2013-10-02
YANTAI MOON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Requires the use of hand tools, which is time-consuming and labor-intensive
However, the existing double-ended stud tightening tools generally have a relatively complicated structure, which not only has high manufacturing costs, but also has poor stability in use.

Method used

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  • Quick screwing sleeve of double-end stud
  • Quick screwing sleeve of double-end stud
  • Quick screwing sleeve of double-end stud

Examples

Experimental program
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Effect test

Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0018] see figure 1 , figure 2 , the present invention includes an inner sleeve 2 as a collet, an outer sleeve 3 that is set outside the inner sleeve 2 and serves as a locking sleeve,

[0019] The outer thread of the front end of the jacket 3 is connected with a nut 1 , and the outer thread of the rear end of the jacket 3 is connected with a connecting sleeve 5 . The nut 1 and the connecting sleeve 5 play a role in axially positioning the inner sleeve 2 and the outer sleeve 3, and the connecting sleeve 5 also plays a role in transmitting power. When in use, the wrench is connected with the connecting sleeve 5, and the outer end of the stud is inserted into the inner sleeve 2. The contact surfaces between the inner sleeve 2 and the outer sleeve 3 are four Archimedes spirals evenly distributed in the radial section. That is to say, the kinematic pair-hi...

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PUM

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Abstract

The invention provides a quick screwing sleeve of a double-end stud. The quick screwing sleeve comprises an inner sleeve body (2) serving as an elastic chuck, and an outer sleeve body (3) sleeved outside the inner sleeve body (2) and serving as a locking sleeve. The outer side of the front end of the outer sleeve body (3) is in threaded connection with a nut (1), the outer side of the rear end of the outer sleeve body (3) is in threaded connection with a connection sleeve (5), and four Achimedean spirals are uniformly distributed in the radial section of the surface where the inner sleeve body (2) is contacted with the outer sleeve body (3). The quick screwing sleeve can be installed on a pneumatic (electric) wrench, the wrench is rotated, the double-end stud to be screwed can be screwed, then the double-end stud is driven to be screwed into a screw hole in a machine body, the stud is automatically locked when encountering resistance, and the larger the resistance is, the larger the locking force is, and the locking force in increased along with the resistance until the stud is screwed in the screw hole in the machine body. Then the wrench is reversely rotated, the stud can be released, reverse friction torque does not exist, and the stud can be easily screwed out.

Description

[0001] technical field [0002] The invention relates to a mechanical tool for quick tightening, in particular to a double-ended stud quick tightening sleeve. Background technique [0003] For a long time, the double-ended studs have been tightened on the machine, generally by double nuts. Requires the use of hand tools, which is time-consuming and labor-intensive. However, the existing double-ended stud tightening tools generally have a relatively complicated structure, which not only has high manufacturing costs, but also has poor stability in use. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a double-ended stud fastening sleeve, which can automatically lock the stud during the tightening process, and the greater the resistance, the greater the locking force, and the reversed sleeve will immediately release the screw. Column, no reverse frictional moment, can exit briskly. In order to improve the efficie...

Claims

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Application Information

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IPC IPC(8): B25B23/00B25B23/10B25B21/00
Inventor 李顺民赵小娟张维华孙永福李素琴
Owner YANTAI MOON