Self-punching rivet nut

Abstract

The utility model relates to the technical field of nuts, and provides a self-punching rivet nut which comprises a nut body and a rivet tongue arranged on the end face of one side of the nut body, the rivet tongue is annular, and the self-punching rivet nut further comprises a first locking convex pattern and a second locking convex pattern. The first locking convex pattern and the second locking convex pattern are both arranged on the end face of the nut body and located on the periphery of the outer side of the rivet tongue, the first locking convex pattern and the second locking convex pattern are both provided with inclined faces, and the inclination directions of the first locking convex pattern and the second locking convex pattern are opposite. By means of the technical scheme, the problem that in the prior art, the stability is insufficient after a self-punching rivet nut is installed is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to nut technical field, specifically, relate to a self -punching rivet nut. BACKGROUND

[0002] The rivet nut is also called rivet nut, and is a kind of nut applied to sheet or sheet metal, and the shape is circular, and one end is provided with rivet tongue.The principle is that rivet tongue is pressed into the pre-placed hole of sheet metal, generally, the diameter of pre-placed hole is slightly smaller than the embossing tooth of rivet nut, and the rivet tongue of rivet nut is extruded into the plate to make the periphery of pre-placed hole plastic deformation, thereby producing locking effect.But with more meticulous cost control, now sheet metal often does not set pre-placed hole, and rivet nut is directly installed on sheet metal by stamping, but considering that other components need to be installed on the thread on the rivet nut after fixing rivet nut, therefore, the rotation stability of rivet nut after stamping installation needs to be paid special attention, thus a more stable nut structure after rivet nut stamping is required. SUMMARY

[0003] The utility model provides a self -punching rivet nut, solve the problem of insufficient stability after the installation of self -punching rivet nut in the prior art.

[0004] The technical scheme of the utility model is as follows:

[0005] A self -punching rivet nut, the self -punching rivet nut includes nut main part and the rivet tongue of the one side end face of setting, the rivet tongue is annular, the self -punching nut still includes first locking relief and second locking relief, the first locking relief and the second locking relief are all set on the end face of the nut main part and are located the outside periphery of the rivet tongue, the first locking relief and the second locking relief are all provided with inclined surface, and the inclined direction of the first locking relief and the second locking relief is opposite.

[0006] The track of the first locking relief and the second locking relief is annular, and the track radius corresponding to the first locking relief is greater than the track radius corresponding to the second locking relief.

[0007] The first locking relief and the second locking relief are opposite to each other.

[0008] The nut main part is provided with threaded through hole.

[0009] The rivet tongue includes punching part and riveting part, the riveting part is connected with the nut main part, the punching part is arranged at the end of the riveting part, and the outside of the riveting part is provided with an inclination angle.

[0010] The working principle and beneficial effects of the utility model are as follows:

[0011] The utility model discloses a kind of self-punching rivet nuts, nut is by nut main body, rivet, first locking ridge and second locking ridge are composed, wherein the end face of one side of nut main body is provided with rivet, when being installed to sheet metal piece surface, rivet is punched into sheet metal plate, sheet metal plate is deformed, nut main body realizes position fixed, to further improve the stability of nut main body, so that when being screwed into other accessories, nut main body is still firm, on the end face of nut main body at the side of rivet, first locking ridge and second locking ridge are arranged at the outside surrounding of rivet, and first locking ridge and second locking ridge are provided with opposite inclined surface, so that it can be stuck after being pressed into sheet metal material of plastic deformation, further fixed is realized, improve the stability of rivet nut. BRIEF DESCRIPTION OF DRAWINGS

[0012] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0013] Fig. 1 It is structure schematic diagram for one of the utility model embodiments;

[0014] Fig. 2 It is structure schematic diagram for another embodiment of the utility model;

[0015] Fig. 3 It is structure schematic diagram for another embodiment of the utility model;

[0016] In the drawing: 1, nut main body, 2, rivet, 3, first locking ridge, 4, second locking ridge, 5, threaded hole, 6, punch part, 7, riveting part. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor are involved in the scope of the utility model protection.

[0018] As Figs. 1-3 Indicated, a kind of self-punching rivet nut, the self-punching rivet nut includes nut main body 1 and the rivet 2 of setting in the end face of one side of the nut main body 1, the rivet 2 is annular, the self-punching nut further includes first locking ridge 3 and second locking ridge 4, the first locking ridge 3 and the second locking ridge 4 are all set on the end face of the nut main body 1 and located at the outside surrounding of the rivet 2, the first locking ridge 3 and the second locking ridge 4 are all provided with inclined surface, the inclined direction of the first locking ridge 3 and the second locking ridge 4 is opposite.

[0019] In the embodiment, a self-punching rivet nut is disclosed, which comprises a nut body 1, a rivet 2, a first locking ridge 3 and a second locking ridge 4. The nut body 1 is provided with the rivet 2 on one side of the end face, and the rivet 2 is punched into the sheet metal plate when the rivet nut is installed on the surface of the sheet metal part, so that the sheet metal plate is deformed and the nut body 1 is fixed in position. In order to further improve the stability of the nut body 1, the nut body 1 is still firm when it is screwed into other fittings. The first locking ridge 3 and the second locking ridge 4 are arranged on the end face of the nut body 1 on the side of the rivet 2 and outside the rivet 2, and the first locking ridge 3 and the second locking ridge 4 are provided with opposite inclined surfaces, so that the plastic deformed sheet metal material can be clamped after being pressed in, further fixation is achieved, and the stability of the rivet nut is improved.

[0020] The trajectories of the first locking ridge 3 and the second locking ridge 4 are both annular, and the radius of the trajectory corresponding to the first locking ridge 3 is greater than the radius of the trajectory corresponding to the second locking ridge 4.

[0021] In the embodiment, the arrangement trajectories of the first locking ridge 3 and the second locking ridge 4 on the end face are annular trajectories. The first locking ridge 3 and the second locking ridge 4 can be continuous ridge structures or intermittent ridge structures. For example, the first locking ridge 3 and the second locking ridge 4 can be rectangular inclined structures, arc-shaped inclined structures and flower-shaped inclined ridge structures. The specific structure of the ridge is optional. Even if the ridge structure is intermittent, the arrangement trajectory is annular, and the radius of the annular trajectory corresponding to the first locking ridge 3 is greater than the radius of the annular trajectory corresponding to the second locking ridge 4.

[0022] The first locking ridge 3 and the second locking ridge 4 are oppositely inclined.

[0023] In the embodiment, the first locking ridge 3 and the second locking ridge 4 are oppositely inclined, that is, the first locking ridge 3 on the outside is inclined inward, and the second locking ridge 4 is inclined outward. Therefore, the inclined surfaces of the first locking ridge 3 and the second locking ridge 4 are opposite. After the sheet metal is punched by the rivet 2, part of the plastic deformed sheet metal material is extruded between the first locking ridge 3 and the second locking ridge 4, thereby improving the stability of the nut body 1.

[0024] The nut body 1 is provided with a threaded hole 5.

[0025] In the embodiment, the nut body 1 is provided with a threaded hole 5 in the center, which is convenient for installing other parts.

[0026] The rivet 2 comprises a punching portion 6 and a riveting portion 7. The riveting portion 7 is connected with the nut body 1, the punching portion 6 is arranged at the end of the riveting portion 7, and the outer side of the riveting portion 7 is provided with an inclination angle.

[0027] In the embodiment, the rivet tongue 2 comprises a punching portion 6 and a riveting portion 7, wherein the riveting portion 7 is connected with the end face of the nut body 1, the punching portion 6 is at the end of the riveting portion 7, the riveting portion 7 abuts against the sheet metal, after being punched, the sheet metal is plastically deformed, the punching portion 6 is inserted into the sheet metal, the riveting portion 7 is combined with the deformed sheet metal, and an inclination is arranged on the outer side of the riveting portion 7, the material of the plastic deformation of the sheet metal fills the inclination on the outer side of the riveting portion 7, and the firmness of the installation is improved.

[0028] The above is only a preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A self-piercing rivet nut comprising a nut body (1) and a rivet shank (2) provided on one side end surface of the nut body (1), the rivet shank (2) being ring-shaped, characterized in that, The self-punching rivet nut further comprises a first locking ridge (3) and a second locking ridge (4), both of which are arranged on the end face of the nut body (1) and located outside the periphery of the rivet tongue (2), and both of which are provided with an inclined surface, and the inclined directions of the first locking ridge (3) and the second locking ridge (4) are opposite.

2. The self-piercing rivet nut of claim 1, wherein The tracks where the first locking ridge (3) and the second locking ridge (4) are located are both annular, and the track radius corresponding to the first locking ridge (3) is greater than the track radius corresponding to the second locking ridge (4).

3. The self-piercing rivet nut of claim 2, wherein, The first locking ridge (3) and the second locking ridge (4) are oppositely inclined.

4. The self-piercing rivet nut of claim 1, wherein The nut body (1) is provided with a threaded through hole (5).

5. The self-piercing rivet nut of claim 1, wherein, The rivet tongue (2) comprises a punching part (6) and a riveting part (7), the riveting part (7) is connected with the nut body (1), the punching part (6) is arranged at the end of the riveting part (7), and the outer side of the riveting part (7) is provided with an inclination angle.

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