Stereoscopic multi-dimensional anti-loosening structure with capability of never loosening

Abstract

The invention discloses a stereoscopic multi-dimensional anti-loosening structure with capability of never loosening. According to the technical scheme, the stereoscopic multi-dimensional anti-loosening structure with capability of never loosening is characterized by comprising a screw, an upper nut and a lower nut are screwed to the screw, and a mounting groove is formed in the end, facing the lower nut, of the upper nut; the lower nut is provided with a clamping piece capable of being inserted into the mounting groove; a gripping structure for achieving tight gripping of the clamping piece and the screw is arranged between the clamping piece and the mounting groove; the gripping structure comprises a deformation groove formed in the side wall of the side, facing the screw, of the clamping piece, a protruding portion arranged on the side wall of the side, away from the screw, of the clamping piece and located at the same position as the deformation groove, and an abutting portion arranged on the side wall of the mounting groove and capable of abutting against the protruding portion, the abutting portion abuts against the protruding portion and enables the clamping piece to deform, and the positions, located on the two sides of the deformation groove, of the clamping piece are tightly gripped with the side wall of the screw. The clamping piece is in close contact with the side wall of the screw at multiple positions, so that the anti-loosening effect of the screw is effectively improved, and the function of no loosening is achieved.

Description

technical field [0001] The invention relates to the field of fasteners, in particular to a three-dimensional, multi-dimensional and never-loosening anti-loosening structure. Background technique [0002] Nuts and bolts or screws are screwed together to form an anti-loosening component. The anti-loosening component is a part that plays a fastening role. A component that must be used in all manufacturing machinery is divided into carbon steel, stainless steel, non-ferrous metal ( Such as copper) and other major types. [0003] Most of the existing anti-loosening fasteners use two kinds of prevention to prevent loosening. One is the Japanese Hard LocK nut that uses a wedge inserted to prevent loosening. However, the design of the wedge boss of the Japanese Hard LocK has the following problems: when locking When tightening, a large torque must be used to lock. Therefore, too much force is often used to cause the concave nut to be stretched by the boss nut until the clamping eff...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing anti-loosening fasteners use two kinds of prevention to prevent loosening. One is the Japanese Hard LocK nut that uses a wedge inserted to prevent loosening. However, the design of the wedge boss of the Japanese Hard LocK has the following problems: when locking When tightening, a large torque must be used to lock. Therefore, too much force is often used to cause the concave nut to be stretched by the boss nut until the clamping effect is lost and the thread slips. Major accidents; the other is to assemble Nord-Lock washers on the bolts, but this prevention makes the bolt fastening process slower and increases the cost

[0004] The existing patent number is: 202021856388.2. The patent name is a three-dimensional, multi-dimensional and never loosening anti-loosening structure, which prevents the bolt from loosening. The clamping piece of the lower nut is in close contact with the screw rod, that is, the clamping piece is far away from the end of the lower nut. The edge position of the upper part realizes close contact with the screw, and achieves a tight bite with the nut on the side wall of the screw, while the rest of the clamping piece is farther away from the end of the lower nut than the clamping piece, and the bite strength is small, thus affecting the overall anti-loosening effect

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