Same-body different-diameter reverse spiral screw fastening assembly not loose permanently

A screw tightening and reducing technology, applied in the direction of threaded fasteners, screws, nuts, etc., can solve the problems of difficult bolt rod processing technology, loosening and falling off, difficult maintenance and disassembly, etc.

Pending Publication Date: 2019-03-01
王卫国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 vib

Method used

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  • Same-body different-diameter reverse spiral screw fastening assembly not loose permanently
  • Same-body different-diameter reverse spiral screw fastening assembly not loose permanently
  • Same-body different-diameter reverse spiral screw fastening assembly not loose permanently

Examples

Experimental program
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Effect test

Embodiment 1

[0059] Such as figure 1 As shown, a same body and different diameter counter-rotating screw fastening assembly is made, the assembly includes a bolt 1, the bolt 1 includes a bolt head 2 and a screw 3, and a first nut 4 and a second nut 5 are also made; Now the screw 3 is made into two parts, the first rod section 6 and the second rod section 7, which are directly connected; the first rod section 6 is directly connected with the bolt head 2, and the second rod section 7 is directly connected to the first rod section. 6 is directly connected; the diameter of the first rod section 6 is greater than the diameter of the second rod section 7; the outer surfaces of the first rod section 6 and the second rod section 7 are both provided with external threads, the first The direction of the external thread on the rod section 6 is opposite to that on the second rod section 7; in this embodiment, the first rod section 6 is set to a large left-handed externally threaded rod 8, and the second...

Embodiment 2

[0065] Such as Figure 4 As shown, a tooth-lock type homogenous reducing counter-rotating screw fastening assembly is produced. On the basis of Example 1, the outer surface of the first nut 4 is divided into two parts: the outer polygonal prism 18 and the outer tooth cylinder 25, and the outer surface of the second nut is also divided into the outer polygonal prism 18 and Two parts of the outer surface tooth cylinder 25; the outer surface of the outer surface tooth cylinder 25 of the first nut and the outer surface of the outer surface tooth cylinder 25 of the second nut tooth cylinder are provided with an outer vertical tooth pattern 26 with exactly the same shape and specification; In addition, a cylindrical tooth clip 27 is provided, and an inner vertical tooth pattern 28 matching the outer vertical tooth pattern 26 is provided on the inner wall of the cylindrical tooth clip 27. In this way, a tooth-lock type concentric reducing screw fastening assembly is made. In this way...

Embodiment 3

[0071] Such as Figure 5 , 6 As shown in, 7, and 8, a nail-lock type concentric reducing screw fastening assembly is made. On the basis of embodiment 1, a pointed positioning screw 29 is also produced. The positioning screw 29 includes a nut and a stud. The stud is provided with an external thread; the outer end surface of the first nut 4 is provided There is a ring-shaped positioning groove 30 concentric with the nut hole. In this embodiment, the cross-section of the ring-shaped positioning groove 30 is set to a V shape; the second nut 5 is provided with one or more ring-shaped holes around the nut hole The penetrating screw holes 31 are arranged. In this embodiment, two screw holes 31 are provided. The inner wall of the screw holes 31 is provided with internal threads that match the external threads on the stud; thus, the present invention is made Nail lock type same body reducing screw fastening components.

[0072] In addition, the screw hole 31 can also be configured as a t...

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Abstract

The invention discloses a same-body different-diameter reverse spiral screw fastening assembly not loose permanently, and belongs to the technical field of fasteners. The same threaded rod is dividedinto a plurality of rod sections with the diameters sequentially reduced, and outer threads on every two adjacent rod sections are opposite in turning direction. All the rod sections are provided withmatched nuts. In addition, lock clamps different in structure are arranged to clamp the nuts and prevent every two adjacent nuts from doing opposite reverse rotation. The assembly is suitable for thesituation that fastened pieces are provided with through holes, after a same-body different-diameter reverse spiral bolt assembly is made for fastening, under the action of vibration force, due to areverse turning direction structure, the contradictory loosening and tightening rotation tendency can be generated between every two adjacent nuts, and the two nuts cannot generate same-direction rotation displacement. Meanwhile, the lock clamps lock the relative positions when every two adjacent nuts are fastened, and the two nuts cannot generate opposite reverse rotation displacement. Accordingly, the effects that after fastening, loosening does not happen permanently, and detachment is convenient are achieved.

Description

Technical field [0001] The patent of the present invention relates to the technical field of fasteners, in particular to a non-loosening homogenous reducing screw fastening assembly. Background technique [0002] Screw fastening components are a type of mechanical parts used to fasten two or more components connected as a whole. The threaded rod at the core of the screw is a cylinder with threads on the outside. It is divided into three types: bolts (with end cap screws), studs (end cap screws), and screws (end cap pointed screws) according to different shapes and uses. As a mature industry, the screw fastener industry has been standardized for decades. However, the anti-loosening problem 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 tight The huge problem in the firmware industry is also a huge problem in the entire machinery industry. The solution of the anti-loosening pr...

Claims

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Application Information

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IPC IPC(8): F16B35/04F16B33/02
CPCF16B35/041F16B33/02F16B2033/025
Inventor 王卫国
Owner 王卫国
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