Allogenic different-diameter reverse-screwing bolt fastening assembly capable of never being loose

Abstract

The invention discloses an allogenic different-diameter reverse-screwing bolt fastening assembly, and belongs to the technical field of fastening parts. The fastening assembly comprises two or more than two independent separated bolts; the diameters of screws of the bolts are orderly arranged from large to small and sequentially and progressively decreased, and the lengths of the corresponding screws are sequentially and progressively increased from small to large according to the order; the screwing directions of outer threads formed in the screws of every two adjacent bolts are opposite according to the order; each bolt is provided with a penetrating hole except the smallest bolt; and the fastening assembly is further provided with a locking clamp. The allogenic different-diameter reverse-screwing bolt fastening assembly has the beneficial effects that as long as one bolt is loose, another bolt can be screwed in the same direction, the screwing directions of the large bolt and the small bolt are opposite, one bolt can be always tend to be screwed in the more fastened direction when bolt loosing occurs, the two bolt heads simultaneously generate the loosing and fastening contradictory tendencies, therefore, the bolt heads actually can not generate any same-direction or opposite-direction rotating displacement, and then the long-term fastening purpose is achieved.

Description

technical field [0001] The patent of the present invention relates to the technical field of fasteners, in particular to a non-loosening anti-rotation bolt fastening assembly with different bodies and different diameters. Background technique [0002] Screw fastening components are a type of mechanical parts used to fasten two or more components when they are connected as a whole. The threaded rod at the core of the screw is a cylinder with threads on the outside. According to the shape and use, it can be divided into three types: bolt (screw with end cap), stud (screw without end cap), and screw (pointed screw with end cap). As a mature industry, the screw fastener industry has been standardized for decades. However, the problem of anti-loosening of screw fasteners has not been fundamentally and effectively solved. Solving the problem of anti-loosening in the field of screw fasteners is not only The huge problem of the firmware industry is also a huge problem of the entire...

AI Technical Summary

Problems solved by technology

[0004] The anti-loosening screws commonly used in the industry now basically belong to the above 4 similar products. The first type of mechanical anti-loosening is actually not anti-loosening but to avoid falling off; the second type of riveting anti-loosening bolt rod can only be used once and repaired It is difficult to disassemble, and cutting tools are necessary to destroy the bolts; the third type of friction and anti-loosening products such as Japanese Hadlock eccentric nuts and Spirax wedge lock nuts only increase the loosening resistance, and will also loosen and fall off when the vibration of the component is large enough; Type 4 structure anti-loosening types such as Down lock nuts and bolt rods are extremely difficult to process. In addition, it should be noted that the vibration force can be transmitted between components, and the vibration force will be transmitted from the component to the first nut on the inside and then transmitted. Give the second nut to the outer end. When the vibration force is strong enough, the transmitted vibration force can make the outer end nut loose first, and then the inner nut loosen, and the two nuts will loosen and fall off in turn.

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