CN213332002U

CN213332002U - Non-loosening nut

Info

Publication number: CN213332002U
Application number: CN202022427251.1U
Authority: CN
Inventors: 吴天宏
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-06-01
Anticipated expiration: 2030-10-28

Abstract

The utility model discloses an inseparable nut, it is including nut and packing ring the taper hole has been seted up to the internal screw thread lower part of nut be provided with the annular plate on the packing ring, seted up the notch on the annular plate, the nut is put in the annular plate outside of packing ring through its taper hole tight fit cover, the utility model discloses the advantage is: the nut can not be detached from the bolt, so that the locking and anti-loosening functions are good, and the nut is very suitable for use occasions with high requirements on anti-loosening performance.

Description

Non-loosening nut

Technical Field

The utility model relates to a technical field of nut, the more specifically technical field who relates to lock nut that says so.

Background

The anti-loose nut is a nut with anti-loose function, the anti-loose mode adopted by the anti-loose nut in the prior art mainly comprises mechanical anti-loose, rivet-punch anti-loose, friction anti-loose, structure anti-loose and the like, wherein the friction anti-loose mode is the most widely applied anti-loose mode, a positive pressure which is not changed along with external force is generated between a locking nut pair in the mode so as to generate a friction force which can prevent the locking nut pair from rotating relatively, the positive pressure can be completed by axially or simultaneously compressing the locking nut pair in two directions, for example, an anti-slip washer is adopted, the anti-slip effect is improved by arranging anti-slip teeth on the surface of the common anti-slip washer at present, therefore, the anti-loose effect is not very ideal, the locked nut can still be easily disassembled, and the anti-loose nut cannot adapt to the use occasion.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above-mentioned not enough and provide one kind and have fine locking effect, very be applicable to the not nut that can not become flexible of the use occasion that has higher requirement to locking performance.

The utility model discloses a solve above-mentioned technical problem and the technical solution who adopts as follows:

the nut is characterized by comprising a nut and a washer, wherein a taper hole is formed in the lower portion of an internal thread of the nut, an annular plate is arranged on the washer, a notch is formed in the annular plate, and the nut is sleeved outside the annular plate of the washer through the tight fit of the taper hole.

The inner peripheral wall of the nut taper hole is provided with anti-loosening teeth, and the anti-loosening teeth are in contact with the outer peripheral wall of the annular plate.

The cross section of the anti-loosening teeth is wedge-shaped.

The annular plate is conical.

The notches on the annular plate are uniformly distributed along the circumferential direction.

The utility model adopts the beneficial effect that above-mentioned technical solution can reach is: the utility model discloses a nut that can not become flexible is when using, put the packing ring cover on the bolt that needs are connected with the nut earlier, then twist the nut on the bolt, put the annular plate outside at the packing ring until the taper hole cover of nut, continue to twist the nut soon, the taper hole through the nut extrudees the annular plate of packing ring, owing to seted up the notch on the annular plate, make the annular plate receive the shrinkage that can take place after the taper hole extrudees, the material of the annular plate on the packing ring is when choosing, the selection hardness is less than the material of bolt and nut locking tooth hardness, so that hold the bolt tightly after the annular plate shrinkage, the thread of bolt can imbed in the internal perisporium of annular plate, thereby lock bolt and annular plate. When the taper hole extrusion annular slab of nut, in the periphery wall of locking tooth embedding annular slab on the nut taper hole internal perisporium, because the cross section of locking tooth is the wedge, consequently make the nut only can unidirectional rotation to make the nut only can rotate towards the direction of screwing up the nut, make the nut can't follow the bolt and dismantle, played fine locking effect, very be applicable to the use occasion that has higher requirement to locking performance.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a bottom view of the nut of FIG. 1;

FIG. 3 is a top view of the gasket of FIG. 1;

fig. 4 is a schematic view of the present invention in use.

Detailed Description

By figure 1, figure 2 and figure 3 show, the nut that can not become flexible, it is including nut 1 and packing ring 2 taper hole 4 has been seted up to the lower part of 1 internal thread 3 of nut, is provided with locking tooth 5 on the internal perisporium of 1 taper hole 4 of nut, and the cross section of this locking tooth 5 is the wedge be provided with annular plate 6 on the packing ring 2, this annular plate 6 is the toper, has seted up notch 7 on annular plate 6, and notch 7 on annular plate 6 is along circumference equipartition, and nut 1 is put in the annular plate 6 outside of packing ring 2 through its 4 tight fits of taper hole, and locking tooth 5 contacts with the periphery wall of annular plate 6.

By figure 4, the utility model discloses a nut that can not become flexible is when using, put earlier 2 covers of packing ring on the bolt 8 that needs are connected with nut 1, then twist nut 1 soon on bolt 8, put in the 6 outsides of the annular plate of packing ring 2 until 4 covers of taper hole of nut 1, continue to twist nut 1 soon, taper hole 4 through nut 1 extrudees annular plate 6 of packing ring 2, owing to seted up notch 7 on annular plate 6, make annular plate 6 receive and can take place the shrink after the extrusion of taper hole 4, the material of annular plate 6 on the packing ring 2 is when choosing, select the hardness to be less than the material of

bolt

8 and 5 hardnesses of nut 1 locking tooth, so that hold tightly bolt 8 after the contraction of annular plate 6, the thread of bolt 8 can imbed in the internal perisporium of annular plate 6, thereby lock bolt 8 and annular plate 6. When the taper hole 4 extrusion annular plate 6 of nut 1, in the periphery wall of locking tooth 5 embedding annular plate 6 on the internal perisporium of taper hole 4 of nut 1, because the cross section of locking tooth 5 is the wedge, consequently make nut 1 can only unidirectional rotation to make nut 1 can only rotate towards the direction of screwing up nut 1, make nut 1 can't dismantle from bolt 8, played fine locking effect.

Claims

1. The nut that can not become flexible, its characterized in that: the nut is sleeved outside the annular plate of the washer through tight fit of the taper hole.

2. The non-loosening nut as defined in claim 1, wherein: the inner peripheral wall of the nut taper hole is provided with anti-loosening teeth, and the anti-loosening teeth are in contact with the outer peripheral wall of the annular plate.

3. The non-loosening nut as defined in claim 2, wherein: the cross section of the anti-loosening teeth is wedge-shaped.

4. The non-loosening nut as claimed in claim 1, 2 or 3, wherein: the annular plate is conical.

5. The non-loosening nut as claimed in claim 4, wherein: the notches on the annular plate are uniformly distributed along the circumferential direction.