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Single-side bolt

A single-sided bolt and screw technology, which is applied in the field of mechanical parts, can solve problems such as the need to improve the installation convenience and weak anchoring effect, and achieve the effects of simple construction and installation, improved anchoring effect, and simple process

Pending Publication Date: 2019-02-19
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the current single-sided bolts have problems such as weak anchoring effect and ease of installation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0047] A single-sided bolt is characterized by comprising a screw rod 1 , an expansion piece 2 , a control piece 3 and a spring 4 .

[0048] The screw 1 is a rod-shaped structure with threads at one end.

[0049] A through hole I101 is opened on the threaded end surface of the screw 1 .

[0050] The other end surface of the screw 1 is provided with a blind hole I102.

[0051] The blind hole I102 is a rectangular parallelepiped hole, the length of the cross section of the blind hole I102 is X, and the width direction of the cross section of the blind hole I102 is the direction where the slot is located.

[0052] An expansion hole I103 and an expansion hole II104 are opened on the cylindrical surface of the other end of the screw 1 .

[0053] The central axis of the through hole I101, the central axis of the blind hole I102 and the central axis of the screw 1 are located on the same straight line.

[0054] The expansion hole I103 and the expansion hole 104 form a through-hole...

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PUM

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Abstract

The invention discloses a single-side bolt. The single-side bolt is characterized by comprising a screw, an expansion piece, a control piece and springs; a through hole I is formed in the end surfaceof a threaded end of the screw; a blind hole I is formed in the end surface of the other end of the screw; an expansion hole I and an expansion hole II are formed in the column surface of the other end of the screw; an expansion piece I is mounted inside the expansion hole I; a clamping groove I is formed in the center of the bottom surface of the expansion piece I; an expansion piece II is mounted inside the expansion hole II; a clamping groove II is formed in the center of the top surface of the expansion piece II; a plurality of springs are connected between the bottom surface of the expansion piece I and the top surface of the expansion piece II; the control piece comprises a control head and a control rod which are connected; the control rod is located inside the through hole I; the control head adopts the structure with tips arranged at two ends; and the control head controls the state of the expansion piece I and the state of the expansion piece II.

Description

technical field [0001] The invention relates to the field of mechanical parts, in particular to a single-sided bolt. Background technique [0002] Single-sided bolts, also known as blind bolts or single-sided locking bolts, can be installed on one side and tightened on one side. They are very suitable for the connection of steel pipe structures. They have the characteristics of simple and convenient on-site construction and minimal welding volume. guaranteed. [0003] At the same time, single-sided bolts have high shear bearing capacity, tensile bearing capacity and pre-tightening force. Under certain conditions, their mechanical properties can be comparable to traditional high-strength bolts, and they are very suitable for the connection of steel pipe structures. [0004] However, the current single-sided bolts have problems such as weak anchoring effect and ease of installation. Contents of the invention [0005] The purpose of the present invention is to solve the pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B35/00F16B13/06
CPCF16B13/06F16B35/00
Inventor 王卫永杨竞杰
Owner CHONGQING UNIV