Combined anti-loosening fastener

An anti-loosening and combined technology, applied in the direction of threaded fasteners, locking fasteners, connecting components, etc., can solve the problems of difficulty and trouble in processing wedge-shaped teeth, difficulty in mass production, etc., and achieve assembly process convenient effect

Pending Publication Date: 2021-08-24
蒋建伟 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing fasteners use traditional structures such as bolts, nuts and washers. The fastening principle is that the bolts are inserted into the connectors, and the nuts are tightened and fixed, or springs, washers and other accessories are added to prevent Bolts and nuts are loose, which has the advantages of simple structure, low cost, and good fastening effect under normal circumstances, but it is prone to loosening after long-term use, thus posing safety hazards
In some special environments, such as vibration environments, strong sports environments, equipment with high assembly requirements, and other special environments, the self-locking ability of bolts and threads is not enough to maintain the stability of fasteners
[0003] Chinese patent CN101173693 provides a kind of anti-loosening washer and anti-loosening fastening assembly, and it presses the anti-loosening washer on the object by using bolts, so that the two sides of the anti-...

Method used

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  • Combined anti-loosening fastener

Examples

Experimental program
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Effect test

Embodiment 1

[0027] like Figure 1-3 As shown, the combined anti-loosening fastener includes a bolt 1, a nut 2 and a ratchet 3. The lower end surface of the ratchet 3 is arranged with radial wedge-shaped teeth 4 along a ring. The direction is the same, the bottom end of the nut 2 is fixedly connected with a female cover 5, the female cover 5 can cover the ratchet 3 and the inner top end of the female cover 5 can be pressed on the upper end surface of the ratchet 3, and the side wall of the female cover 5 is provided with multiple One pawl 6 for matching the ratchet 3, one end of the shank of the bolt 1 can pass through the workpiece, the ratchet 3, the female cover 5 and the nut 2 in order to fasten the connected workpiece.

[0028] When the combined anti-loosening fastener provided by the above embodiment is used, such as Figure 4 As shown, first, the bolt 1 can be passed through the workpiece B, the workpiece A, the ratchet 3, the female cover 5 and the nut 2 in sequence, and then the ...

Embodiment 2

[0040] In addition to the methods provided by the above-mentioned embodiments, an embodiment can also be provided, which differs from Embodiment 1 only in the form of the ratchet 6 on the side of the mother cover 5, specifically, as Figure 5 As shown, the direction of one end of the ratchet 6 is opposite to that of the ratchet 6 in Embodiment 1, and there is no need to set a hook-shaped end structure, it only needs to be bent at a certain angle, and this structure can also play the role of locking the ratchet 5. As a result, different mother cover 5 structures can be selected according to requirements during actual use, so that the difficulty of repairing after disassembly will also be different.

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Abstract

The invention discloses a combined anti-loosening fastener, and relates to the technical field of fasteners. The fastener comprises a bolt, a nut and an anti-loosening washer; the upper end surface of the anti-loosening washer is coaxially and fixedly connected with a ratchet wheel, the outer diameter of the ratchet wheel is smaller than that of the anti-loosening washer, radial wedge-shaped teeth are annularly arranged on the lower end surface of the anti-loosening washer, the orientation direction of the side end surfaces of the wedge-shaped teeth is consistent with the unscrewing direction of the nut, the bottom end of the nut is fixedly connected with a female cover, the female cover can cover the ratchet wheel, the bottom end of the female cover can be pressed on the upper end surface of the anti-loosening washer, a plurality of pawls matched with the ratchet wheel are arranged on the side wall of the female cover, and one end of the rod part of the bolt can sequentially penetrate through a workpiece, the anti-loosening washer, the ratchet wheel, the female cover and the nut to be connected with the workpiece in a fastened mode. When being used for fixing an object, the anti-loosening fastener can effectively prevent loosening, and is convenient to assemble and relatively low in machining difficulty.

Description

technical field [0001] The invention relates to the technical field of fasteners, in particular to a combined anti-loosening fastener. Background technique [0002] The existing fasteners use traditional structures such as bolts, nuts and washers. The fastening principle is that the bolts are inserted into the connectors, and the nuts are tightened and fixed, or springs, washers and other accessories are added to prevent Bolts and nuts are loose, which has the advantages of simple structure, low cost, and good fastening effect under normal circumstances, but it is prone to loosening after long-term use, thereby posing potential safety hazards. In some special environments, such as vibration environments, strong sports environments, equipment with high assembly requirements, and other special environments, the self-locking ability of bolts and threads is not enough to maintain the stability of fasteners. [0003] Chinese patent CN101173693 provides a kind of anti-loosening w...

Claims

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Application Information

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IPC IPC(8): F16B39/10F16B39/24F16B39/32
CPCF16B39/10F16B39/24F16B39/32
Inventor 蒋建伟蒋易岑
Owner 蒋建伟
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