CN215673108U

CN215673108U - Press-riveting nut

Info

Publication number: CN215673108U
Application number: CN202121578407.4U
Authority: CN
Inventors: 潘俊俊; 肖善喜; 徐申志
Original assignee: Obeio Kunshan Automobile Fastener Co ltd
Current assignee: Obeio Kunshan Automobile Fastener Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2022-01-28
Anticipated expiration: 2031-07-12

Abstract

The utility model discloses a pressure riveting nut which is applied to the field of fasteners and comprises a nut body and an annular screw hole platform; the annular screw hole platform is arranged in the center of the upper surface of the nut body; a vertical upward convex ring is arranged on the outer edge of the upper surface of the nut body; the upper surface of the nut body is annularly provided with a plurality of triangular bulges, the triangular bulges are in an isosceles triangle structure, the bottom edges of the triangular bulges are contacted with the convex ring, and the top angles are contacted with the annular screw hole platform; a triangular groove is formed between every two adjacent triangular bulges, and the triangular bulges and the triangular grooves are arranged in opposite directions; the pressure riveting nut can form a multi-mechanical lock in the pressure riveting process to firmly fix the riveting nut in a metal plate, is safe and reliable, and is not easy to fall off.

Description

Press-riveting nut

Technical Field

The utility model relates to the field of connecting pieces, in particular to a press riveting nut.

Background

The press riveting nut is also called a riveting nut, is a self-fastening nut applied to a thin plate or a metal plate, is circular in shape, and is provided with embossing teeth and a guide groove at one end. The principle is that the embossing teeth are pressed into the preset hole positions of the metal plate, generally, the aperture of each preset hole is slightly smaller than the embossing teeth of the press riveting nut, the embossing teeth of the press riveting nut are extruded into the plate through pressure, the periphery of each preset hole is subjected to plastic deformation, and a deformed object is extruded into the guide groove, so that the locking effect is achieved. However, the existing press riveting nut is often difficult to install and is not firm enough. Therefore, there is a need for a new type of clinch nut that is easy to install, safe and reliable.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a press riveting nut which has the advantages of simplicity and convenience in installation, safety and reliability.

The technical purpose of the utility model is realized by the following technical scheme: a press riveting nut comprises a nut body and an annular screw hole platform; the annular screw hole platform is arranged in the center of the upper surface of the nut body; a vertically upward convex ring is arranged on the outer edge of the upper surface of the nut body; a plurality of triangular bulges are annularly distributed on the upper surface of the nut body, the triangular bulges are in an isosceles triangle structure, the bottom edges of the triangular bulges are contacted with the convex ring, and the top angles of the triangular bulges are contacted with the annular screw hole platform; and a triangular groove is formed between the adjacent triangular protrusions, and the triangular protrusions and the triangular grooves are arranged in a reverse direction.

The utility model provides a novel press riveting nut with a convex ring, a triangular bulge and a triangular groove. Meanwhile, the arrangement of the convex ring facilitates the extrusion of the press riveting nut into the plate, and simultaneously provides larger tensile resistance after press riveting forming.

The nut is further provided with a plurality of side edges, the number of the side edges is the same as that of the triangular bulges, the cross section of the nut body is in a polygonal structure due to the plurality of side edges, and the joints of the side edges are round corners.

The utility model is further provided that the inner side of the convex ring close to the side edge is provided with a wall protrusion, and the bottom edge of the triangular protrusion is in contact with the wall protrusion.

Through the technical scheme, the upper surface of the nut body is divided into a plurality of different spaces by the wall protrusions, the inner wall of the convex ring forms a saw-tooth shape, and the tensile resistance after the press riveting forming is further improved.

The utility model is further arranged that the side surface of the annular screw hole platform is inclined outwards.

The utility model is further arranged that the inner wall of the triangular groove close to the annular screw hole platform is provided with an inward inclination angle.

By the technical scheme, the inward inclination angle of the inner wall of the triangular groove can facilitate the flowing of the deformation object in the press riveting process, and the press-in difficulty is reduced; the deformation object is reversely buckled by the outer wall of the inclined annular screw hole platform after being extruded into the upper surface of the nut body, so that the locking effect can be greatly improved.

The utility model is further provided that a through thread channel is arranged in the middle of the annular screw hole platform, and the height of the annular screw hole platform is higher than that of the convex ring.

In conclusion, the utility model has the following beneficial effects: the utility model provides a press-riveting nut, which is safe and reliable, wherein triangular protrusions of the press-riveting nut are extruded into a plate to cause the periphery of a hole to generate plastic deformation by pressing into a metal plate preset hole, and a deformed object is extruded into the upper surface of a nut body and a triangular groove; meanwhile, the convex ring is arranged to facilitate the pressing and riveting of the nut into the plate, and simultaneously, the larger tensile resistance is provided after the pressing and riveting forming, so that the nut is prevented from falling off.

Drawings

Fig. 1 is a perspective view of a clinch nut according to the present embodiment;

FIG. 2 is a front view of a clinch nut of the present embodiment;

fig. 3 is a top view of a clinch nut of the present embodiment.

Reference numerals: 1. a nut body; 2. an annular screw hole table; 3. a triangular bulge; 4. a triangular groove; 5. a convex ring; 6. the wall is convex.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b):

referring to fig. 1, a press-riveting nut includes a nut body 1 and an annular screw hole table 2; the annular screw hole platform 2 is arranged in the center of the upper surface of the nut body 1; a vertical and upward convex ring 5 is arranged on the outer edge of the upper surface of the nut body 1; the upper surface of the nut body 1 is annularly provided with 8 triangular bulges 3, the triangular bulges 3 are in an isosceles triangle structure, the bottom edges of the triangular bulges 3 are contacted with a convex ring 5, and the vertex angles are contacted with an annular screw hole platform 2; a triangular groove 4 is formed between every two adjacent triangular protrusions 3, and the triangular protrusions 3 and the triangular grooves 4 are arranged in the opposite direction.

The utility model provides a novel press riveting nut with a convex ring 5, a triangular bulge 3 and a triangular groove 4, wherein the triangular bulge 3 of the press riveting nut is extruded into a plate by pressing into a sheet metal preset hole, so that the periphery of the hole is subjected to plastic deformation, and a deformation object is extruded into the upper surface of a nut body 1 and the triangular groove 4, thereby playing a reliable fixing role. Meanwhile, the arrangement of the convex ring 5 facilitates the pressing and riveting of the nut into the plate, and simultaneously provides larger tensile resistance after the pressing and riveting forming.

The nut body 1 is provided with a plurality of side edges, the number of the side edges is the same as that of the triangular protrusions 3, the cross section of the nut body 1 is in a polygonal structure due to the plurality of side edges, and the joints of the plurality of side edges are fillets; the inner side of the convex ring 5 close to the side edge is provided with a wall protrusion 6, and the bottom edge of the triangular protrusion 3 is contacted with the wall protrusion 6; the wall protrusions 6 divide the upper surface of the nut body 1 into a plurality of different spaces, and the inner wall of the convex ring 5 forms a saw-tooth shape, so that the tensile resistance after press riveting is further improved.

The inner wall of the triangular groove 4 close to the annular screw hole platform 2 is an inward inclination angle, and the inward inclination angle of the inner wall of the triangular groove 4 can facilitate the flowing of a deformation object in the pressure riveting process, so that the pressing difficulty is reduced; the side surface of the annular screw hole platform 2 is an outward inclination angle, and a deformed object is extruded into the upper surface of the nut body 1 and then is reversely buckled by the outer wall of the inclined annular screw hole platform 2, so that the locking effect can be greatly improved.

Wherein, the middle of the annular screw hole platform 2 is provided with a through thread channel, and the height of the annular screw hole platform 2 is higher than that of the convex ring 5.

The operating principle of the pressure riveting nut described in this embodiment is: the riveting nut is pressed into the preset hole of the metal plate, the pressure enables the triangular protrusion 3 of the riveting nut to be extruded into the plate to cause the periphery of the hole to generate plastic deformation, the deformation object is extruded into the upper surface of the nut body 1, and further the deformation object flows into the triangular groove 4 through the inner wall of the triangular groove 4 at an inward inclination angle, the convex ring 5, the wall protrusion 6, the triangular groove 4 and the annular screw hole platform 2 are multiple mechanical locks formed by the side faces at the inclination angle, and the riveting nut is firmly fixed in the metal plate, is safe and reliable and is not easy to fall off.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. A press riveting nut comprises a nut body (1) and an annular screw hole platform (2); the annular screw hole platform (2) is arranged in the center of the upper surface of the nut body (1);

the nut is characterized in that a vertical and upward convex ring (5) is arranged on the outer edge of the upper surface of the nut body (1); a plurality of triangular bulges (3) are annularly distributed on the upper surface of the nut body (1), the triangular bulges (3) are of an isosceles triangle structure, the bottom edges of the triangular bulges (3) are in contact with the convex ring (5), and the vertex angles of the triangular bulges are in contact with the annular screw hole platform (2); adjacent be provided with triangle recess (4) between triangle arch (3), triangle arch (3) with triangle recess (4) are reverse to be set up.

2. The rivet pressing nut as claimed in claim 1, characterized in that the nut body (1) is provided with a plurality of side edges, the number of which is the same as that of the triangular protrusions (3), and the plurality of side edges make the cross section of the nut body (1) in a polygonal structure; the joints of the side edges are rounded.

3. The clinch nut of claim 2, characterised in that the collar (5) is provided with a wall projection (6) adjacent to the inner side of the side, the base of the triangular projection (3) being in contact with the wall projection (6).

4. Clinch nut according to claim 1, characterised in that the sides of the annular screw boss (2) are inclined outwards.

5. A clinch nut according to claim 1, characterised in that the triangular recess (4) is inwardly inclined adjacent to the inner wall of the annular screw boss (2).

6. The clinch nut of claim 1, characterized in that the annular screw hole platform (2) is provided with a threaded passage therethrough in the middle, the annular screw hole platform (2) being higher than the collar (5).