CN213744383U

CN213744383U - Closed self-plugging rivet

Info

Publication number: CN213744383U
Application number: CN202022731891.1U
Authority: CN
Inventors: 陈超; 李怡柯
Original assignee: Xiamen Jieshunxing Precision Technology Co ltd
Current assignee: Xiamen Jieshunxing Precision Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-07-20
Anticipated expiration: 2030-11-23

Abstract

The utility model discloses an enclosed type self-plugging rivet belongs to rivet technical field, and its technical scheme main points include cap head and nail core, the jack has been seted up to the top central authorities outer wall of cap head, and the nail core pegs graft in the jack inner wall, the fixed cap pipe that is provided with of bottom outer wall of cap head, the fixed backing sheet that is provided with four annular array distributions of bottom outer wall of cap pipe, and the arc mouth inner wall of four backing sheets all welds the flange, four the bottom outer wall of flange all is the cambered surface setting, the bottom welding of nail core has the connecting rod, and the bottom outer wall welding of connecting rod has the arc boss, the bottom outer wall welding of arc boss has the stripper plate, the utility model has the advantages of can carry out the centre gripping to the mounting steadily and fix.

Description

Closed self-plugging rivet

Technical Field

The utility model relates to a rivet, more specifically say that it relates to an enclosed type self-plugging rivet.

Background

Rivets are nail-shaped articles used to connect two parts (or members) with through holes and a cap at one end. In riveting, the riveted parts are connected by self-deformation or interference. The self-plugging rivet is a rivet for single-side riveting, and when riveting, a rivet core is pulled by a special rivet gun to expand a rivet body to achieve a riveting effect. The rivet is particularly suitable for riveting occasions where common rivets (which need to be riveted from two sides) are inconvenient to adopt, so that the rivet is widely applied to products such as buildings, automobiles, ships, airplanes, machines, electrical appliances, furniture and the like.

In the prior art, an enclosed blind rivet generally comprises a cap head and a rivet core, wherein an extrusion plate is arranged at one end of the rivet core, the extrusion plate is arranged inside the cap head, and the cap head is extruded by the extrusion plate after the rivet core is drawn by a rivet gun, so that the cap head is expanded, and then fixation is realized.

However, the single drawing expansion device has a weak clamping effect on the fixing member, so that a new type of blind rivet needs to be designed to solve the above problem.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide an enclosed type self-plugging rivet, its advantage lies in can carrying out the centre gripping steadily to the mounting and fix.

In order to achieve the above purpose, the utility model provides a following technical scheme: the utility model provides an enclosed type self-plugging rivet, includes cap head and nail core, the jack has been seted up to the top central authorities outer wall of cap head, and the nail core pegs graft in the jack inner wall, the fixed cap pipe that is provided with of bottom outer wall of cap head, the fixed backing sheet that is provided with four ring array and distributes of bottom outer wall of cap pipe, and the arc mouth inner wall of four backing sheets all welds has a flange, four the bottom outer wall of flange all is the cambered surface setting, the bottom welding of nail core has the connecting rod, and the bottom outer wall welding of connecting rod has the arc boss, the bottom outer wall welding of arc boss has the stripper plate.

Through adopting above-mentioned technical scheme, after using the riveter to take out the nail core, can drive the stripper plate and rise, treat that the stripper plate removes when between four backing sheets, outwards extrude four protruding boards by the stripper plate for four backing sheets expand and come, realize promptly that the centre gripping to the mounting is fixed, and stability is high. In addition, the arc-shaped boss and the arc-shaped bottom of the convex plate are arranged, so that the ascending smoothness of the extrusion plate can be effectively improved, and the convenience of rivet operation is improved.

The utility model discloses further set up to: the outer wall of the middle part of the circumference of the cap pipe is provided with an annular groove, and the inner wall of the annular groove is fixedly provided with an expansion block.

Through adopting above-mentioned technical scheme, at the in-process that the stripper plate rose, can extrude the inflation piece for the inflation piece expands to the outer wall of annular groove, and then expands fixedly by the rivet groove of inflation piece on to the mounting.

The utility model discloses further set up to: the thickness of the expansion block is two to three times of the thickness of the pipe wall of the cap pipe.

Through adopting above-mentioned technical scheme, can effectual assurance inflation piece from the bulging of annular groove internal expansion.

The utility model discloses further set up to: the outer walls of the bottoms of the expansion blocks are all arc-shaped.

Through adopting above-mentioned technical scheme, at the in-process that the stripper plate rose, the arc form set up the smooth and easy rebound of effectual assurance arc boss, slowly with the laminating of inflation piece, extrude the inflation piece, and then the extruded smooth and easy nature of effectual assurance.

The utility model discloses further set up to: and the peripheral outer wall of the cap pipe is sleeved with a sealing gasket.

Through adopting above-mentioned technical scheme, sealed the pad can seal the rivet groove, improves sealed effect.

The utility model discloses further set up to: the outer wall of the bottom of the cap head is provided with lugs distributed in an annular array, and the lugs are hemispherical.

Through adopting above-mentioned technical scheme, at the in-process of fixing the mounting, can come effectual improvement mounting and the cap head frictional force through the lug, and then improve fixed stability.

The utility model discloses further set up to: the outer wall of the circumference of the nail core is provided with a thread groove.

Through adopting above-mentioned technical scheme, the frictional force of riveter pull centre gripping nail core can be improved in the setting of thread groove, and then the stability of loosing core is improved.

The utility model discloses further set up to: the sizes of the circumferential inner walls of the four supporting pieces, the circumferential inner wall of the cap tube and the inner wall of the jack are the same.

Through adopting above-mentioned technical scheme, guarantee the smooth and easy nature that the connecting rod reciprocated.

To sum up, the utility model has the advantages of it is following:

1. the four supporting pieces are arranged at the bottom of the cap tube, the convex plates are arranged in the four supporting pieces, the arc-shaped boss and the extrusion plate are arranged at the bottom of the connecting rod, the extrusion plate can be driven to ascend after the rivet core is drawn out by using the rivet gun, and when the extrusion plate moves to a position between the four supporting pieces, the four convex plates are extruded outwards by the extrusion plate, so that the four supporting pieces are expanded, namely, the fixing piece is clamped and fixed, and the stability is high;

2. the annular groove is formed in the circumferential outer wall of the cap pipe, the expansion block is arranged on the inner wall of the annular groove, the thickness of the expansion block is two to three times of the thickness of the pipe wall of the cap pipe, the bottom of the expansion block is arranged to be of a cambered surface structure, the expansion block can be extruded in the process that the extrusion plate rises, the expansion block is expanded towards the outer wall of the annular groove, and then the expansion block is used for expanding and fixing the rivet groove in the fixing piece, so that the fixing stability is improved;

3. through being provided with sealed the pad at the circumference outer wall of cap pipe, at the in-process that inflation piece extrusion expanded, seal up the rivet groove by sealed, improve sealed effect, be provided with the lug that annular array distributes through the bottom at the cap head, carry out the in-process fixed to the mounting, can come effectual improvement frictional force by the lug, and then improve fixed stability.

Drawings

FIG. 1 is a perspective view of the structure of the present embodiment;

FIG. 2 is a schematic front view of the pressing plate of the present embodiment;

fig. 3 is a partial sectional structural view of the support sheet of the present embodiment;

FIG. 4 is a partial sectional view schematically showing the structure of the cap tube according to the present embodiment;

fig. 5 is a schematic structural view of the bottom of the cap head of the present embodiment.

Description of reference numerals: 1. a pressing plate; 2. a connecting rod; 3. a support sheet; 4. a cap tube; 5. a bump; 6. a cap head; 7. a nail core; 8. a thread groove; 9. an expansion block; 10. an arc-shaped boss; 11. a convex plate; 12. and a gasket.

Detailed Description

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

A closed self-plugging rivet is disclosed, as shown in figures 1 and 3, and comprises a cap head 6 and a nail core 7, wherein the outer wall of the top center of the cap head 6 is provided with a jack, the nail core 7 is inserted into the inner wall of the jack, the outer wall of the bottom of the cap head 6 is fixedly provided with a cap tube 4, the outer wall of the bottom of the cap tube 4 is fixedly provided with four supporting sheets 3 distributed in an annular array, the inner walls of the arc openings of the four supporting sheets 3 are welded with convex plates 11, the outer walls of the bottoms of the four convex plates 11 are arranged in an arc shape, the bottom of the nail core 7 is welded with a connecting rod 2, the outer wall of the bottom of the connecting rod 2 is welded with an arc-shaped boss 10, the outer wall of the bottom of the arc-shaped boss 10 is welded with an extrusion plate 1, the sizes of the inner walls of the circumference of the four supporting sheets 3 and the inner walls of the jack are the circumference, the four convex plates 11 are pressed outwards by the pressing plate 1, so that the four supporting sheets 3 are expanded, namely, the clamping and fixing of the fixing piece are realized. In addition, the arc-shaped bosses 10 and the arc-shaped bottom of the convex plate 11 can effectively improve the ascending smoothness of the extrusion plate 1, and improve the convenience of rivet operation.

Further, as shown in fig. 2 and 4, an annular groove is formed in the outer wall of the middle of the circumference of the cap tube 4, an expansion block 9 is fixedly arranged on the inner wall of the annular groove, the thickness of the expansion block 9 is two to three times of the thickness of the tube wall of the cap tube 4, the outer wall of the bottom of the expansion block 9 is arc-shaped, the thickness of the expansion block 9 is two to three times of the thickness of the tube wall of the cap tube 4, the bottom of the expansion block 9 is arranged to be of an arc-shaped structure, the expansion block 9 can be extruded in the ascending process of the extrusion plate 1, the expansion block 9 expands towards the outer wall of the annular groove, the rivet groove on the fixing piece is expanded and fixed through the expansion block 9, and the fixing stability is improved.

It is worth mentioning that, as shown in fig. 5, the circumferential outer wall of the cap tube 4 is sleeved with the sealing gasket 12, the outer wall of the bottom of the cap head 6 is provided with the convex blocks 5 distributed in an annular array manner, the convex blocks 5 are hemispherical, the circumferential outer wall of the nail core 7 is provided with the thread groove 8, the circumferential inner walls of the four supporting sheets 3, the circumferential inner walls of the cap tube 4 and the inner walls of the jacks are arranged in the same size, and in the fixing process of the fixing piece, the friction force can be effectively improved through the convex blocks 5, so that the fixing stability is improved.

The utility model discloses a working process and beneficial effect as follows: during the use, the user at first needs to set up the rivet groove on the surface of mounting, then pass nail core 7 from the bottom in rivet groove, then use the riveter to twitch nail core 7, and then drive stripper plate 1 and rise, when stripper plate 1 removes to between four backing sheets 3, outwards extrude four flange 11 by stripper plate 1, make four backing sheets 3 expand and come, it is fixed to carry out the centre gripping by four backing sheets 3 and cap 6 to the mounting, the arc setting of arc boss 10 and flange 11 bottom can effectual improvement stripper plate 1 smooth and easy nature that rises, the convenience of rivet operation has been improved, in the in-process that stripper plate 1 rises, can extrude inflation piece 9, make inflation piece 9 expand to the outer wall of annular groove, and then expand fixedly by inflation piece 9 to the rivet groove on the mounting, and then fixed stability has been improved.

The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides an enclosed type self-plugging rivet, includes cap (6) and spike core (7), the jack has been seted up to the top central authorities outer wall of cap (6), and peg graft in jack inner wall, its characterized in that in spike core (7): the fixed cap pipe (4) that is provided with of bottom outer wall of cap head (6), the fixed backing sheet (3) that are provided with four annular array distributions of bottom outer wall of cap pipe (4), and the arc mouth inner wall of four backing sheets (3) all welds flange (11), four the bottom outer wall of flange (11) all is the cambered surface setting, the bottom welding of nail core (7) has connecting rod (2), and the bottom outer wall welding of connecting rod (2) has arc boss (10), the bottom outer wall welding of arc boss (10) has stripper plate (1).

2. An blind rivet according to claim 1, characterized in that: an annular groove is formed in the outer wall of the middle of the circumference of the cap pipe (4), and an expansion block (9) is fixedly arranged on the inner wall of the annular groove.

3. An blind rivet according to claim 2, characterized in that: the thickness of the expansion block (9) is two to three times of the pipe wall thickness of the cap pipe (4).

4. An enclosed blind rivet according to claim 3, characterized in that: the outer walls of the bottoms of the expansion blocks (9) are all arc-shaped.

5. An blind rivet according to claim 1, characterized in that: and a sealing gasket (12) is sleeved on the circumferential outer wall of the cap pipe (4).

6. An blind rivet according to claim 1, characterized in that: the outer wall of the bottom of the cap head (6) is provided with lugs (5) distributed in an annular array, and the lugs (5) are hemispherical.

7. An blind rivet according to claim 1, characterized in that: the outer wall of the circumference of the nail core (7) is provided with a thread groove (8).

8. A blind rivet according to any one of claims 1 to 7, characterized in that: the sizes of the circumferential inner walls of the four supporting pieces (3), the circumferential inner walls of the cap tubes (4) and the inner walls of the jacks are the same.