CN217582814U - Anti-loosening rivet stud and rivet nut assembly - Google Patents

Abstract

The utility model discloses a locking rivet double-screw bolt and rivet nut subassembly, including the rivet double-screw bolt, the shaping has the screw thread on it, and the formation has a plurality of anti-rotation grooves on the rivet double-screw bolt is used for riveted tip screw thread, still discloses simultaneously with rivet double-screw bolt spiro union complex rivet nut. The utility model discloses a double-screw bolt and rivet nut subassembly are riveted to locking drawing, through the screw thread cooperation end shaping rotation-proof slot at the rivet double-screw bolt, the rivet double-screw bolt passes through the spiro union portion and is connected the back with the rivet nut, and the axial extrusion produces the deformation of horizontal direction, and the inboard deformation portion of deformation portion can fill in the rotation-proof slot on the rivet double-screw bolt screw thread simultaneously, plays spacing locking effect.

Description

Anti-loosening rivet stud and rivet nut assembly

Technical Field

The utility model relates to a riveting piece technical field especially relates to a locking rivet double-screw bolt and rivet nut assembly.

Background

Rivet nuts have been widely used for riveting metal, non-metal, planar and non-planar structural members. Compared with a common rivet, the other structure body can be freely detached after the rivet nut is riveted, the functions of the rivet and the nut are combined, and the rivet nut is convenient to maintain and update. Therefore, the present invention has been widely used in the fields of electronics, machine manufacturing, shipbuilding, automobiles, and aviation.

To some circumstances that need connect multiunit sheet metal component, the cooperation that needs rivet nut and rivet double-screw bolt is used, generally with rivet double-screw bolt earlier with connect in rivet nut, through the spiro union cooperation of the two and after the tight fit of one of them sheet metal component, again with rivet on the double-screw bolt mounting nut fix another sheet metal component.

Therefore, when the rivet stud and the rivet nut are used, relative displacement between the rivet stud and the rivet nut cannot occur after riveting, but in actual use conditions, the rivet stud is loosened after long-time use due to the problems of vibration and the like.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving one of the technical problems in the related art at least to a certain extent. Therefore, an object of the utility model is to provide a locking rivet double-screw bolt can play the locking effect after cooperating with the rivet nut, prevents that the rivet screw bolt is not hard up.

The technical scheme of the utility model as follows:

the anti-loosening rivet stud comprises a rivet stud, wherein threads are formed on the rivet stud, and a plurality of anti-rotation grooves are formed in the threads at the end part of the rivet stud for riveting.

Furthermore, the anti-rotation grooves are arranged around the threads at equal intervals.

Furthermore, the anti-rotation groove is integrally in a triangular tooth shape.

A rivet nut assembly comprises a rivet nut matched with the rivet stud in a threaded manner.

Furthermore, the deformation part of the rivet nut corresponds to the position of the anti-rotation groove of the rivet stud, so that when rivet is performed, the deformation part is tensioned and then horizontally extruded to deform, and part of the deformation part is embedded into the anti-rotation groove.

Furthermore, the rivet nut is arranged in a penetrating mode.

Further, the rivet nut further comprises a screwing part connected with the rivet stud, the screwing part is communicated with the deformation part, and the end part of the deformation part is formed with a cap body.

Further, the inner diameter of the screwing part is smaller than that of the deformation part.

Furthermore, the periphery of the deformation part is formed with an anti-skid groove.

Furthermore, anti-slip teeth are formed on the cap body.

The utility model provides a beneficial effect: through the shaping rotation-proof slot of the thread mating end of the rivet stud, after the rivet stud is connected with the rivet nut through the screwed part, the axial extrusion produces the deformation of horizontal direction, and the inboard deformation portion of deformation portion can fill in the rotation-proof slot on the rivet stud screw thread simultaneously, plays spacing locking effect.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the anti-loosening rivet stud provided by the utility model;

FIG. 2 is a front view of the rivet stud of FIG. 1;

FIG. 3 is a schematic cross-sectional view taken along the line A in FIG. 2;

FIG. 4 is a schematic view of a structure of a rivet nut and a rivet stud in a matched manner;

FIG. 5 is a schematic front view of the structure of FIG. 4;

FIG. 6 is a cross-sectional structural view of the blind rivet nut;

fig. 7 is a schematic view of the structure during caulking.

In the figure:

1-riveting a stud; 11-anti-rotation slots; 2-pulling and riveting the nut; 21-a threaded connection; 22-a deformation; 221-anti-slip grooves; 23-a cap body; 24-anti-slip teeth.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Referring to fig. 1-3, the anti-loosening rivet stud comprises a rivet stud 1, wherein a thread is formed on the rivet stud 1, and a plurality of anti-rotation grooves 11 are formed on the end part thread of the rivet stud 1 for riveting.

As shown in fig. 2, the anti-rotation grooves 11 are arranged around the screw thread at equal intervals; referring to fig. 3, in the present embodiment, the anti-rotation groove 11 is generally shaped like a triangle.

Further referring to fig. 4-6, a rivet nut assembly comprises a rivet nut 2 in threaded fit with the rivet stud 1, and a deformation portion 22 of the rivet nut 2 corresponds to the position of the anti-rotation groove 11 of the rivet stud 1, so that when rivet is performed, the deformation portion 22 is tensioned and then horizontally extruded to deform, and is partially embedded into the anti-rotation groove 11. Meanwhile, the rivet nut is arranged in a penetrating mode.

Specifically, the rivet nut 2 further comprises a screwing part 21 connected with the rivet stud 1, the screwing part 21 is communicated with a deformation part 22, a cap body 23 is formed at the end part of the deformation part 22, and as shown in fig. 6, the inner diameter of the screwing part 21 is smaller than that of the deformation part 22.

In consideration of increasing the acting force of pulling and riveting the nut after riveting and emergency, the periphery of the deformation part 22 is formed with an anti-slip groove 221, and meanwhile, the cap body 23 is formed with an anti-slip tooth 24.

During operation, as shown in fig. 7, the cap body 22 abuts against one end of the sheet metal part, after the rivet stud 1 is connected with the rivet nut 1 through the screwing part 21, the rivet stud 1 is screwed through a rivet gun to axially pull the deformation part 22, so that the deformation in the horizontal direction is generated by axial extrusion, and meanwhile, the deformation part on the inner side of the deformation part 22 can be filled in the anti-rotation groove 11 on the thread of the rivet stud 1 to play a limiting and locking role.

In the present application, the structures and the connection relations that are not described in detail are all the prior art, and the structures and the principles thereof are known in the prior art and are not described herein again.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (10)

1. The utility model provides a locking rivet double-screw bolt, includes the rivet double-screw bolt, and the shaping has the screw thread on it, its characterized in that: the screw thread at the end part of the rivet stud for riveting is provided with a plurality of anti-rotation grooves.

2. The anti-loosening rivet stud according to claim 1, characterized in that: the anti-rotation grooves are arranged around the screw thread at equal intervals.

3. The anti-loosening rivet stud according to claim 1, characterized in that: the anti-rotation groove is integrally in a triangular tooth shape.

4. The utility model provides a rivet nut subassembly which characterized in that: comprising a blind rivet nut for screw-fitting with a blind rivet stud according to any one of claims 1 to 3.

5. The blind rivet nut assembly of claim 4, wherein: the deformation part of the rivet nut corresponds to the position of the anti-rotation groove of the rivet stud, so that when rivet is performed, the deformation part is tensioned and then horizontally extruded to deform, and part of the deformation part is embedded into the anti-rotation groove.

6. The blind rivet nut assembly of claim 5, wherein: the rivet nut is arranged in a penetrating way.

7. The blind rivet nut assembly of claim 6, wherein: the rivet nut further comprises a screwing part connected with the rivet stud, the screwing part is communicated with the deformation part, and the end part of the deformation part is formed with a cap body.

8. The blind rivet nut assembly of claim 7, wherein: the inner diameter of the screwing part is smaller than that of the deformation part.

9. The blind rivet nut assembly of any one of claims 5 through 8, wherein: the periphery of the deformation part is formed with an anti-slip groove.

10. The blind rivet nut assembly of claim 7 or 8, wherein: the cap body is formed with anti-slip teeth.

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