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Adjustable-length bolt

An adjustable bolt technology, applied in the direction of screws, threaded fasteners, connecting components, etc., can solve the problem of difficult control of thread matching and achieve the effect of preventing loosening

Inactive Publication Date: 2018-01-26
NINGBO ZHENHAI YONGDING FASTENER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The length-adjustable bolts disclosed in the above-mentioned patents can determine the number of movable connecting thread segments according to the actual required length of the bolt shank, so that the length of the bolt shank of the bolt can be adjusted, but when connecting different thread segments , the thread matching between different thread segments is difficult to control

Method used

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  • Adjustable-length bolt
  • Adjustable-length bolt

Examples

Experimental program
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Embodiment Construction

[0018] This embodiment discloses a bolt with adjustable length, such as figure 1 As shown, the outer bolt 1 is included, and the threaded rod of the outer bolt 1 is provided with a threaded hole 101 along the length direction, and an inner stud 2 is installed in the threaded hole 101, and a lock is threaded on the inner stud 2. Tight casing3. Through the above technical solution, when the length of the bolt needs to be increased, the inner stud 2 is rotated counterclockwise in the threaded hole 101 of the outer bolt 1, and through the cooperation relationship between the inner stud 2 and the threaded hole 101, the inner stud 2 along the The length direction of the outer bolt 1 is extended outwards. After adjusting to the required length, tighten the locking sleeve 3 on the inner stud 2, and lock the inner stud 2 on the outer bolt 1. When it is necessary to reduce the length of the bolt 1 Rotate the inner stud clockwise, adjust to the required length and tighten the locking sl...

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PUM

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Abstract

The invention provides an adjustable-length bolt which comprises an external bolt body. A threaded hole is formed in a threaded rod of the external bolt body in the length direction. An internal studis mounted in the threaded hole and is in threaded connection with a lock sleeve. When the length of the bolt needs to be increased, the internal stud is rotated anticlockwise in the threaded hole ofthe external bolt body, through the cooperative relation between the internal stud and the threaded hole, the internal stud stretches outwards in the length direction of the external bolt body, the lock sleeve on the internal stud is screwed up when the required length is obtained through adjusting, and the internal stud is locked to the external bolt body; and when the length of the bolt needs tobe decreased, the internal stud is rotated clockwise.

Description

technical field [0001] The invention relates to the field of fasteners, in particular to a length-adjustable bolt. Background technique [0002] A bolt is a cylindrical threaded fastener with a nut. It generally consists of a head and a screw. It needs to be used with a nut to fasten and connect two parts with through holes. This form of connection is called a bolt connection. If the nut is unscrewed from the bolt, the two parts can be separated, so the bolt connection is a detachable connection. At present, bolts are widely used in various mechanical equipment and products, and are frequently used fasteners. However, in real life, the length of the threaded rod of the bolt is mostly fixed. In different usage situations, it is necessary to carry bolts with various lengths of threaded rod. Once you forget to carry the bolt with matching length, you cannot continue the corresponding work. Bring great inconvenience to the operator, can not fully meet the use requirements. ...

Claims

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Application Information

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IPC IPC(8): F16B35/02
Inventor 潘剑波
Owner NINGBO ZHENHAI YONGDING FASTENER