CN214788450U

CN214788450U - Stable pulling rivet structure

Info

Publication number: CN214788450U
Application number: CN202121392869.7U
Authority: CN
Inventors: 杨枚荣; 陈如汉; 吴水强
Original assignee: Huzhou Ruishi Standard Components Manufacturing Co ltd
Current assignee: Zhejiang Ruikeda Technology Co ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-11-19
Anticipated expiration: 2031-06-22

Abstract

The utility model discloses a stable form rivet structure, including rivet stem (1) and sleeve pipe (2), the one end of sleeve pipe (2) is equipped with tube head (3), and the inboard of tube head (3) is equipped with chamfer (4), and the inner of chamfer (4) is equipped with extrusion face (5), sleeve pipe (2) are passed to the one end of rivet stem (1) and are connected with pole head (6) that are located the sleeve pipe (2) outside, are equipped with first tensioning portion (7) and second tensioning portion (8) on the rivet stem (1) of sleeve pipe (2) inboard, and first tensioning portion (7) and second tensioning portion (8) are all including a plurality of tensioning strips that are the annular and distribute, form disconnection portion (9) between first tensioning portion (7) and second tensioning portion (8), are equipped with the opening in triangle-shaped cross-section on disconnection portion (9). The utility model has the characteristics of the stability of rupture is good, the yield is high.

Description

Stable pulling rivet structure

Technical Field

The utility model relates to a rivet, especially a stable form rivet structure.

Background

The pull rivet is a rivet for single-side riveting, when in use, a rivet rod is subjected to core pulling through a rivet gun, so that a rod head of the rivet rod extends into the inner side of a rivet body to cause the rivet body to expand, and further the riveting effect is achieved; meanwhile, after the head completely extends into the interior of the rivet body, the head and the shaft body are separated and broken under the subsequent core pulling action, or the shaft body is broken when the shaft body outside the rivet body is shaken left and right, so that the shaft body of the rivet rod is pulled out and the head is left in the rivet body. However, the breaking effect of the conventional club head and the club body is mainly realized by the grooves at the joint of the club head and the club body, so that the problem that the club head is not completely inserted into the rivet body and is separated from the club body frequently occurs when the rivet is used, or the club head cannot be separated from the club body in time after being completely inserted into the rivet body, and the problem that the rivet body is excessively deformed and damaged or the club head is directly pulled out under the subsequent core pulling effect is caused. Both of the two situations can cause the reduction of riveting stability, but the conventional rivet is generally formed by extrusion of a blank, so that a manufacturer is difficult to ensure the breaking stability of a rivet rod by improving the processing precision. Therefore, the conventional blind rivet has the problems of poor fracture stability and low yield.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a stable form rivet structure. It has the characteristics of good breaking stability and high yield.

The technical scheme of the utility model: the utility model provides a stable form rivet structure, includes rivet stem and sleeve pipe, and sheathed tube one end is equipped with the tube head, and the inboard of tube head is equipped with the chamfer, and the inner of chamfer is equipped with the extrusion face, the one end of rivet stem is passed the sleeve pipe and is connected with the pole head that is located the sleeve pipe outside, is equipped with first tensioning portion and second tensioning portion on the rivet stem of sleeve pipe inboard, and first tensioning portion and second tensioning portion all form the disconnection portion including being a plurality of tensioning strips that the annular distributes between first tensioning portion and the second tensioning portion, are equipped with the opening in triangle-shaped cross-section in the disconnection portion.

In the aforesaid stable form rivet structure, the outer end of tensioning strip is laminated with the sheathed tube hole each other through sharp limit.

In the above stable type rivet structure, the shape of the club head is U-shaped.

In the above-mentioned stable type rivet structure, the tube head has a cylindrical shape.

In the aforesaid stable form rivet structure, the rivet pole is equipped with anti-skidding burr keeping away from pole head one end, and the tip of anti-skidding burr extends to the tensioning strip.

Compared with the prior art, the utility model discloses a first tensioning portion and the cooperation of second tensioning portion can effectively improve the frictional force between rivet rod and the sleeve pipe, through the cooperation of disconnection portion and extrusion face, make the pole head after stretching into completely, the operation personnel can support disconnection portion through the extrusion face, make the effort that the rivet rod produced when rocking can directly act on the sleeve pipe and cause the fracture of opening part, and then effectively improve the rupture effect to the rivet rod; in the breaking process, the rivet rod and the rod head positioned on the inner side of the sleeve cannot directly receive the tension effect, so that the possibility that the second tensioning part is pulled out of the sleeve can be effectively reduced by matching with the second tensioning part, and the breaking stability and the yield of the utility model are further improved; through the definition of the appearance of the pipe head and the arrangement of the anti-skidding convex lines, the use stability of the blind rivet can be further improved, and therefore the stability and the fluency of the blind rivet in use are improved. Therefore, the utility model has the characteristics of the rupture stability is good, the yield is high.

Drawings

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

fig. 2 is an enlarged view of a direction a in the folded state of fig. 1.

The labels in the figures are: 1-rivet stem, 2-sleeve, 3-pipe head, 4-chamfer, 5-extrusion surface, 6-rod head, 7-first tensioning part, 8-second tensioning part, 9-breaking part and 10-antiskid convex line.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. The utility model provides a stable form rivet structure, constitutes as shown in figure 1, including rivet stem 1 and sleeve pipe 2, the one end of sleeve pipe 2 is equipped with tube head 3, and the inboard of tube head 3 is equipped with chamfer 4, and the inner of chamfer 4 is equipped with the plane of extrusion 5, the one end of rivet stem 1 is passed sleeve pipe 2 and is connected with the pole head 6 that is located the sleeve pipe 2 outside, is equipped with first tensioning portion 7 and second tensioning portion 8 on the rivet stem 1 of sleeve pipe 2 inboard, and first tensioning portion 7 and second tensioning portion 8 are all including being a plurality of tensioning strips that the annular distributes, form disconnection portion 9 between first tensioning portion 7 and the second tensioning portion 8, are equipped with the opening of triangle-shaped cross-section on the disconnection portion 9.

The outer end of the tensioning strip is attached to the inner hole of the sleeve 2 through a sharp edge.

The shape of the club head 6 is U-shaped.

The pipe head 3 is cylindrical in shape.

The rivet rod 1 is equipped with anti-skidding burr 10 keeping away from head 6 one end, and the tip of anti-skidding burr 10 extends to the tensioning strip.

The utility model discloses a theory of operation: the utility model discloses when using, squeeze into the component downthehole with 1 one end of rivet stem that has sleeve pipe 2 earlier, then loose core to rivet stem 1 and make pole head 6 stretch into in the sleeve pipe 2 to drive the deformation reaming of sleeve pipe 2, thereby realize the riveting effect. When the club head 6 is fully inserted, the upper end surface of the breaking part 9 moves to the upper part of the extrusion surface 5; at the moment, the operator can shake the rivet rod 1 outside the sleeve 2 left and right, so that the end face of the breaking part 9 is abutted against the extrusion face 5 in the shaking process, and downward force is applied to the extrusion face 5 under the subsequent shaking action to break the inner side and the outer side of the rivet rod 1. After the rivet stem 1 is broken, the rivet stem 1 at the upper end of the breaking part 9 is separated from the sleeve 2, and the rivet stem 1 at the lower end of the breaking part 9 is left in the sleeve 2 along with the stem head 6, so that the riveting effect is realized, and the yield is high.

Claims

1. The utility model provides a stable form rivet structure which characterized in that: including rivet stem (1) and sleeve pipe (2), the one end of sleeve pipe (2) is equipped with tube head (3), and the inboard of tube head (3) is equipped with chamfer (4), and the inner of chamfer (4) is equipped with extrusion face (5), sleeve pipe (2) are passed and are connected with pole head (6) that are located the sleeve pipe (2) outside to the one end of rivet stem (1), are equipped with first tensioning portion (7) and second tensioning portion (8) on the rivet stem (1) of sleeve pipe (2) inboard, and first tensioning portion (7) and second tensioning portion (8) are all including a plurality of tensioning strips that are the annular distribution, form between first tensioning portion (7) and second tensioning portion (8) disconnection portion (9), are equipped with the opening of triangle-shaped cross-section on disconnection portion (9).

2. A stabilized blind rivet structure according to claim 1, wherein: the outer end of the tensioning strip is attached to the inner hole of the sleeve (2) through a sharp edge.

3. A stabilized blind rivet structure according to claim 1, wherein: the shape of the club head (6) is U-shaped.

4. A stabilized blind rivet structure according to claim 1, wherein: the pipe head (3) is cylindrical in shape.

5. A stabilized blind rivet structure according to claim 1, wherein: rivet pole (1) is being kept away from pole head (6) one end and is being equipped with anti-skidding burr (10), and the tip of anti-skidding burr (10) extends to the tensioning strip.