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Looseness-prevention fastening device and method
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An anti-loosening and nut technology, applied in threaded fasteners, locking fasteners, connecting components, etc., can solve problems such as nut loosening, and achieve the effect of ensuring tension and increasing anti-loosening effect.
Pending Publication Date: 2020-01-17
夏云天
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Problems solved by technology
[0003] The invention provides an anti-loosening fastening device, which solves the problem that nuts are prone to loosening in the prior art, realizes linkage limitation, and thus achieves an anti-loosening fastening effect
Method used
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Embodiment 1
[0037] refer to Figure 1-3 , is a schematic structural diagram of Embodiment 1 of the present invention, an anti-loosening fastening device, including:
[0038] screw 1;
[0039] A first nut 2, the first nut 2 is threadedly connected to the screw rod 1;
[0040] The second nut 3, the second nut 3 is screwed on the screw rod 1, and the second nut 3 is located above the first nut 2;
[0041] A gasket 4, the gasket 4 is sleeved on the screw rod 1, and the gasket 4 is located between the first nut 2 and the second nut 3;
[0042] The first limiting part, the first limiting part is arranged in the gasket 4, and the first limiting part is limited on the screw rod 1;
[0043] The second limiting part, the second limiting part is arranged on the second nut 3 , and the second limiting part is limited on the washer 4 .
[0044] In actual use: first insert the screw 1 into the hole on the object to be fastened, then thread the first nut 2 outside the screw 1 and tighten it, then the...
Embodiment 2
[0046] On the basis of embodiment 1, with reference to figure 2 and image 3 : the first limiting portion includes a limiting piece 5, the screw 1 is provided with a positioning groove 11, one end of the limiting piece 5 is fixed in the inner ring of the gasket 4, and the other end of the limiting piece 5 is located In the positioning groove 11.
[0047] In actual use: the spacer 4 is fixed to the stopper 5, and the stopper 5 is limited by the positioning groove 11 of the screw rod 1, so that the spacer 4 will not rotate, so that after the spacer 4 is connected to the second nut 3, the second nut 3 will not rotate, thus completing the anti-loosening effect.
Embodiment 3
[0049] On the basis of embodiment 2, with reference to figure 2 and image 3 : the spacer 5 has a plurality, the spacer 5 is trapezoidal, the bottom edges of the plurality of spacer 5 are equidistantly fixed in the inner ring of the gasket 4, and the outer circumferential surface of the screw rod 1 is axially A plurality of trapezoidal positioning grooves 11 are formed, and the plurality of limiting pieces 5 are respectively located in the plurality of positioning grooves 11 .
[0050] In actual use: In this embodiment, there are three limiting pieces 5 and positioning grooves 11, and the gasket 4 is defined by a plurality of limiting pieces 5 cooperating with the positioning grooves 11, so that the stability of the gasket 4 is improved.
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Abstract
The invention relates to the field of nut looseness prevention, and specifically relates to a looseness-prevention fastening device and method. The looseness-prevention fastening device comprises a screw, a first nut, a second nut, a gasket, a first limiting part and a second limiting part, wherein the first nut is in threaded connection with the screw; the second nut is in threaded connection with the screw and located above the first nut; the screw is sleeved with the gasket, and the gasket is located between the first nut and the second nut; the first limiting part is arranged in the gasketand limited on the screw; and the second limiting part is arranged on the second nut and limited on the gasket. According to the looseness-prevention fastening device and method, due to the fact thatthe limiting plates are adopted, the problem of gasket rotation is effectively solved, then the gasket cannot rotate, meanwhile, tension is guaranteed, and the looseness-prevention effect is improved; and due to the fact that the limiting screw and a limiting screw are adopted, the first nut and the gasket are positioned, the first nut cannot rotate when being affected by external factors, and therefore the looseness-prevention effect is achieved.
Description
technical field [0001] The invention relates to the field of anti-loosening nuts, in particular to an anti-loosening fastening device and method. Background technique [0002] Nuts are required to be fastened in many positions in railway construction, but the existing anti-loosening nuts are used for a long time, due to external factors, such as vibration and scratches, etc., the nuts will loosen and cannot be fastened. In order to reduce this phenomenon occurs, a nut and a screw with better anti-loosening effect are needed. Contents of the invention [0003] The invention provides an anti-loosening fastening device, which solves the problem that nuts are prone to loosening in the prior art, realizes linkage limitation, and thus achieves an anti-loosening fastening effect. [0004] The technical problem solved by the present invention can adopt following technical scheme to realize: [0005] An anti-loosening fastening device, comprising: [0006] screw; [0007] a fir...
Claims
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Application Information
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