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Screw fastener for preventing looseness

A screw and tightening technology, applied in the direction of threaded fasteners, screws, nuts, etc., can solve the problems of inconvenient production, inconvenient practical application, complicated operation, etc., to prevent loosening, easy to install or remove, Easy-to-use effects

Pending Publication Date: 2021-07-20
刘启超
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the series of patented products applied for in the early stage are complicated to operate and not easy to produce, so the actual application is not very convenient.

Method used

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  • Screw fastener for preventing looseness
  • Screw fastener for preventing looseness
  • Screw fastener for preventing looseness

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Such as figure 1 , 2 As shown in , 3, a kind of screw rod holding buckle for preventing slack is made, including a holding button 1, and the holding button 1 is a cylinder with a cylindrical hole 2 in the middle, and the cylindrical hole in the cylinder The side wall of 2 is provided with elastic seam 3, promptly dug a breach on the side of cylinder hole 2 on the cylinder, makes the cylinder hole 2 on the cylinder be the shape of a circle. The inner diameter of the cylindrical hole 2 is slightly smaller than the diameter of the screw rod 4 to be fastened; it is also equipped with a wide and narrow pin 5, and the wide and narrow pin 5 is a bolt, and the narrow diameter 6 of the bolt is less than or equal to the thickness 7 of the elastic seam. The wide diameter 8 of the pin is greater than the thickness 7 of the elastic seam, and the thickness 7 of the elastic seam refers to the distance between the two corresponding surfaces in the elastic seam 3; On both sides, the i...

Embodiment 2

[0041] On the basis of Embodiment 1, a first longitudinal tooth pattern 9 parallel to its central axis is provided on the inner wall of the cylindrical hole 2 of the clasping buckle 1 .

[0042] Alternatively, an internal thread 10 matching the external thread on the screw rod 4 is provided on the inner wall of the cylindrical hole 2 of the clasping buckle 1 .

[0043] Or, on the inner wall of the cylindrical hole 2 of the clasping buckle 1, the internal thread 10 and the second longitudinal tooth pattern are arranged at the same time, that is, the first longitudinal tooth pattern 9 is arranged on the crest position of the internal thread 10, and at the same time the The bottom of the external thread on the screw 4 is provided with a second longitudinal tooth 11 parallel to its central axis, and the second longitudinal tooth 11 and the first longitudinal tooth 9 mesh with each other.

[0044] Or the first longitudinal tooth pattern 9 is arranged at the bottom position of the i...

Embodiment 3

[0046] Such as figure 2 , 3 Shown on the basis of Embodiment 1, an oval hole 12 is dug together in the middle of the two corresponding side walls of the elastic seam 3, and the long diameter of the oval hole 12 is the same as that of the elastic seam 3. Parallel, the short diameter is perpendicular to the elastic seam 3; at the same time, the wide and narrow pin 5 is made into an elliptical structure, the wide diameter 8 is the long diameter of the ellipse, and the narrow diameter 6 is the short diameter of the ellipse.

[0047] The wide and narrow pin 5 is also provided with a handle bar 13 , and the handle bar 13 is perpendicular to the length direction of the wide and narrow pin 5 .

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Abstract

The invention discloses a screw fastener for preventing looseness, and belongs to the technical field of fasteners. A screw sleeve is a cylinder with a cylindrical hole in the middle, an elastic seam parallel to the axis is arranged on the side wall of the cylindrical hole in the cylinder, and the inner diameter of the cylindrical hole is slightly smaller than the diameter of a screw to be fastened; a wide-narrow pin is additionally arranged, the wide-narrow pin is a plug pin, the narrow diameter, namely the thickness, of the plug pin is smaller than or equal to the thickness of the elastic seam, the wide diameter, namely the width, of the plug pin is larger than the thickness of the elastic seam, and the thickness of the elastic seam refers to the distance between the two corresponding surfaces in the elastic seam; and when the wide diameter of the wide-narrow pin abuts against the two sides of the elastic seam, the inner diameter of the cylindrical hole is equal to or larger than the diameter of a screw. The screw fastener has the beneficial effects that the inner diameter of the screw sleeve is slightly smaller than the outer diameter of the screw, and the screw sleeve is provided with the elastic seam, so that the screw sleeve can tightly hold the screw in a natural state, and a bolt fastener is effectively prevented from loosening; and after the plug pin is inserted into the elastic seam, the screw sleeve can be mounted or dismounted, and the operation is very convenient.

Description

technical field [0001] The invention belongs to the technical field of fasteners, in particular to a screw locking buckle for preventing loosening. Background technique [0002] Commonly used fasteners include bolt and nut assemblies, stud nut assemblies, screws, etc., wherein the nut is a polygonal cylinder with a central threaded hole, and an internal thread is provided on the inner ring wall of the central threaded hole, which is connected to the thread on the stud. The external thread is used for fastening and connecting two or more fasteners with through holes. [0003] The fastening of nuts and bolts is generally relatively stable. However, if the fastened parts are in vibration for a long time, there will be a difference in vibration frequency between the connecting parts, which will cause a certain displacement of each connecting part in the connecting structure, resulting in loosening or even falling off of the connection between the nut and the bolt, and then It ...

Claims

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Application Information

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IPC IPC(8): F16B39/12
CPCF16B39/12
Inventor 刘启超
Owner 刘启超
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