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Anti-loosing threaded fastener

A threaded fastener, anti-loosening technology, applied in the direction of threaded fasteners, locking fasteners, screws, etc., can solve the problems of difficult installation and disassembly, and achieve simple structure, easy repeated installation and disassembly, and convenient use Effect

Inactive Publication Date: 2012-08-08
许松林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of anti-loosening method is suitable for occasions with large vibration, impact and high speed, especially the occasions where the internal inspection of the machine is not suitable. The anti-loosening method is reliable, but it is not easy to install and disassemble.

Method used

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  • Anti-loosing threaded fastener
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  • Anti-loosing threaded fastener

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as figure 1 As shown, the anti-loosening threaded fastener includes a nut 1, a bolt 2, a washer 3 and a pin 4, the center of the washer 3 is provided with a central hole 31 through which the bolt 2 can pass, and the nut 1 is provided with a protruding ring 5, The central hole 31 of the gasket 3 is a round hole, and the structure of the bolt 2 corresponds to the round hole, so that the bolt 2 and the gasket 3 are locked and connected to each other in the circumferential direction. The protruding ring 5 is provided with a Several convex ring holes 51, several gasket holes 32 are arranged on the gasket 3 along the ring direction, when the nut 1 is in a tightened state on the bolt 2, at least one convex ring hole 51 completely overlaps with the gasket hole 32, and the pin 4 Set in the completely overlapping collar hole 51 and gasket hole 32, as figure 2 As shown, the gasket hole 32 is provided with a protrusion 33, such as image 3 As shown, the pin 4 is provided wi...

Embodiment 2

[0033] Such as Figure 4 As shown, the anti-loosening threaded fastener includes a nut 1, a bolt 2, a gasket 3 and a pin 4, and the center of the gasket 3 is provided with a central hole 31 for the bolt 2 to pass through, as Figure 5 As shown, the nut 1 is provided with a convex ring 5, the gasket 3 is provided with a gasket convex tooth 34 on the contact surface of the workpiece 6, and the bolt convex tooth 21 is provided on the contact surface of the bolt 2 and the workpiece 6. The gasket The protruding teeth 34 and the protruding teeth 21 of the bolts can also be replaced by a protruding tooth plate with protruding teeth on both sides, so as to realize the mutual locking connection between the bolt 2 and the gasket 3 along the ring direction, and the upper edge of the protruding ring 5 Several convex ring holes 51 are arranged in the direction, and several gasket holes 32 are arranged on the gasket 3 along the circumferential direction. When the nut 1 is in a tightened sta...

Embodiment 3

[0036] Such as Figure 7As shown, the anti-loosening threaded fastener includes a nut, a bolt 2, a washer 3 and a pin 4, the center of the washer 3 is provided with a central hole 31 for the bolt 2 to pass through, the bolt 2 is provided with a protruding ring 5, and the washer Between the sheet 3 and the first workpiece 6, a convex tooth sheet 8 with convex teeth on both sides is provided, and the nut and the second workpiece 7 are integrally structured. In this embodiment, the second workpiece 7 is provided with a threaded hole 71. In this way, the nut and the washer 3 are locked and connected to each other in the circumferential direction. The protruding ring 5 is provided with several protruding ring holes 51 in the circumferential direction, and the washer 3 is provided with several spacer holes 32 in the circumferential direction. The bolt 2 When the second workpiece 7 is in a tightened state, at least one collar hole 51 is completely overlapped with the gasket hole 32, ...

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Abstract

The invention relates to an anti-loosing threaded fastener, which comprises a nut, a bolt, a gasket and a pin. A centre hole for the bolt to penetrate through is arranged in the center of the gasket, a bulge loop is arranged on the nut or the bolt, the nut or the bolt without the bulge loop and the gasket are mutually connected along the circumference direction in a locking mode, a plurality of bulge loop holes are arranged on the bulge loop along the circumference direction, a plurality of gasket holes are arranged on the gasket along the circumference direction, when the nut is in a screwing state on the bolt, at least one bulge loop hole is completely overlapped with the gasket hole, the pin is arranged in the bulge loop hole and the gasket hole which are completely overlapped, a protruding portion is arranged in the bulge loop hole or the gasket hole, and a clamping block matched with the protruding portion is arranged on the pin. The anti-loosing threaded fastener is simple in structure, convenient to use, capable of reliably achieving looseness prevention between the nut and the bolt, and easy to repeatedly install and dismantle.

Description

technical field [0001] The invention relates to an anti-loosening threaded fastener. Background technique [0002] The fundamental problem of securing fasteners is to prevent relative rotation of fasteners. There are many specific anti-loosening devices or methods, but in terms of working principle, they can be divided into destroying the thread pair relationship, frictional anti-loosening, mechanical anti-loosening, etc. [0003] The anti-loosening that destroys the thread pair relationship refers to the use of punching, welding, bonding and other methods to make the thread pair lose the characteristics of the kinematic pair and the connection becomes a non-detachable connection. The disadvantage of this method is that the bolt can only be used once, and it is very difficult to install and disassemble, and the thread pair must be destroyed before it can be disassembled. [0004] Friction and anti-loosening is to prevent the loosening of the connection by making a certain ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B39/10F16B39/02F16B39/282
Inventor 许松林
Owner 许松林
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