CN220706185U - Self-penetrating press riveting stud - Google Patents

Abstract

The utility model discloses a self-penetrating press-riveting stud in the technical field of press-riveting studs, which comprises a screw and a press-riveting piece arranged at one end of the screw, wherein at least four trapezoidal bumps are arranged on the outer wall of the screw, a boss is arranged between the press-riveting piece and the screw, the boss is in a shape of a circular table, the diameter width of the boss is gradually reduced from top to bottom, at least four reinforcing ribs are arranged at the bottom of the boss, and the reinforcing ribs are arranged between two adjacent trapezoidal bumps.

Description

Self-penetrating press riveting stud

Technical Field

The utility model relates to the technical field of press riveting studs, in particular to a self-penetrating press riveting stud.

Background

The press-riveting nut column is also called a press-riveting stud or nut column, and is a fastener applied to a sheet metal, a thin plate, a machine case and a machine cabinet, one external end of the press-riveting nut column is hexagonal, the other end of the press-riveting nut column is cylindrical, a tool withdrawal groove is formed between the hexagonal edge and the cylindrical middle of the press-riveting nut column, the internal shape of the press-riveting nut column is internal threads, a hexagon head is pressed into a preset hole (the aperture of the preset hole is generally slightly smaller than the external diameter of the cylinder of the press-riveting stud) of the thin plate through a press machine, the periphery of the hole is plastically deformed, and the deformed part is extruded into the tool withdrawal groove of the press-riveting nut column to enable the press-riveting nut column to be riveted on the thin plate, so that an effectively fixed internal thread is formed on the thin plate;

the press riveting stud commonly used in the prior art comprises a nut and a stud, wherein the stud is pressed into one workpiece through a press, then the other workpiece is locked into the stud through a screw, so that the fixed installation of the two workpieces is realized, but when the stud is pressed into one workpiece through the press, the pressed stud and the workpiece are often connected in a loose manner, the stud is easy to shake, the stud is easy to drop from the workpiece, and the use effect is poor.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides a self-threading type press-riveting stud, which can effectively solve the technical problems that when the stud is pressed into one of workpieces by a press, the pressed stud is connected with the workpiece loose and easy to shake.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a rivet double-screw bolt is pressed to self-threading, includes the screw rod and installs the pressure of riveting piece in screw rod one end, the outer wall of screw rod is equipped with four at least trapezoidal lugs, be equipped with the boss between pressure riveting piece and the screw rod, the boss is the round platform form, and the diameter width of boss is from top to bottom diminish gradually, and the bottom of boss is equipped with four at least strengthening ribs, the strengthening rib is located between two adjacent trapezoidal lugs.

Preferably, the outer edge of the boss is provided with a plurality of evenly distributed empty slots, and the empty slots are provided with inclined planes.

Preferably, the trapezoidal protruding blocks and the screw are integrally formed, the trapezoidal protruding blocks are distributed in a circumferential array by taking the center point of the screw as the center of the circle, and the trapezoidal protruding blocks extend along the length direction of the screw.

Preferably, the reinforcing ribs are in a sector shape, the reinforcing ribs are distributed in a circumferential array by taking the center point of the boss as the center of the circle, and the reinforcing ribs and the boss are integrally formed.

Preferably, the press riveting piece, the boss and the screw are of an integral connection structure.

Compared with the prior art, the utility model has the beneficial effects that:

through setting up the boss between riveting piece and screw rod, the diameter width of boss from top to bottom diminishes gradually, and the bottom of boss is equipped with four at least strengthening ribs, is equipped with four at least trapezoidal lugs simultaneously at the outer wall of screw rod, consequently, the press is pressing into the sheet metal component with this riveting double-screw bolt, trapezoidal lug extrusion sheet metal component to, the boss can further extrude the sheet metal component, and can diffuse to the inside of empty slot when sheet metal component extrusion deformation, realize riveting double-screw bolt and sheet metal component's firm connection from this.

Drawings

FIG. 1 is a schematic view of a self-threading press-riveting stud according to the present utility model in a front view;

fig. 2 is a schematic structural view of a self-piercing press-riveting stud according to the present utility model from a bottom view.

Reference numerals in the drawings:

1-rivet pressing piece, 2-empty groove, 3-inclined plane, 4-boss, 5-screw, 6-trapezoid protruding block and 7-reinforcing rib.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-2, the utility model provides a self-penetrating rivet pressing stud, which comprises a screw 5 and a rivet pressing piece 1 arranged at one end of the screw 5, wherein at least four trapezoid protruding blocks 6 are arranged on the outer wall of the screw 5, a boss 4 is arranged between the rivet pressing piece 1 and the screw 5, the rivet pressing piece 1, the boss 4 and the screw 5 are in an integral connection structure, a plurality of evenly distributed empty slots 2 are arranged on the outer edge of the boss 4, the empty slots 2 are provided with inclined planes 3, the boss 4 is in a circular truncated cone shape, the diameter width of the boss 4 is gradually reduced from top to bottom, at least four reinforcing ribs 7 are arranged at the bottom of the boss 4, the reinforcing ribs 7 are arranged between two adjacent trapezoid protruding blocks 6, the reinforcing ribs 7 are in a fan shape, the reinforcing ribs 7 are distributed in a circumferential array with the center point of the boss 4 as the center, the trapezoid protruding blocks 6 are integrally formed with the screw 5, the trapezoid protruding blocks 6 are distributed in the circumferential array with the center point of the screw 5 as the center, and the trapezoid protruding blocks 6 extend along the length direction of the screw 5.

Compared with the traditional technology: through setting up boss 4 between riveting piece 1 and screw rod 5, the diameter width of boss 4 from top to bottom diminishes gradually, and the bottom of boss 4 is equipped with four at least strengthening ribs 7, be equipped with four at least trapezoidal lugs 6 simultaneously at the outer wall of screw rod 5, therefore, the press is pressing into the sheet metal component with this press-riveting double-screw bolt, trapezoidal lug 6 extrusion sheet metal component, and, boss 4 can further extrude the sheet metal component, and can diffuse to the inside of empty slot 2 when sheet metal component extrusion deformation, realize press-riveting double-screw bolt and sheet metal component's firm connection from this.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (5)

1. The utility model provides a rivet double-screw bolt is pressed to self-threading, includes the screw rod and installs the pressure of riveting piece in screw rod one end, its characterized in that, the outer wall of screw rod is equipped with four at least trapezoidal lugs, be equipped with the boss between pressure riveting piece and the screw rod, the boss is round platform form, and the diameter width of boss is from top to bottom diminish gradually, and the bottom of boss is equipped with four at least strengthening ribs, the strengthening rib is located between two adjacent trapezoidal lugs.

2. The self-threading rivet stud according to claim 1, wherein a plurality of evenly distributed empty slots are formed in the outer edge of the boss, and inclined surfaces are arranged in the empty slots.

3. The self-threading press-riveting stud according to claim 1, wherein the trapezoidal protruding blocks are integrally formed with the screw, the trapezoidal protruding blocks are distributed in a circumferential array with a center point of the screw as a center, and the trapezoidal protruding blocks extend along the length direction of the screw.

4. The self-threading rivet stud according to claim 1, wherein the reinforcing ribs are in a fan shape, the reinforcing ribs are distributed in a circumferential array with a center point of the boss as a center, and the reinforcing ribs and the boss are integrally formed.

5. The self-threading blind rivet stud as set forth in claim 1 wherein said blind rivet, boss and screw are integrally connected.