CN214007713U

CN214007713U - Wire-drawing type external locking self-plugging rivet

Info

Publication number: CN214007713U
Application number: CN202022898403.6U
Authority: CN
Inventors: 王宁
Original assignee: Suzhou Wenshuo Precision Industry Co ltd
Current assignee: Suzhou Wenshuo Precision Industry Co ltd
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2021-08-20
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a wire-drawing type external lock blind rivet, which relates to the rivet field, comprising a rivet shell, a rivet core is arranged above the rivet shell, a hollow groove is arranged inside the rivet shell, a thread ring is fixedly arranged on the inner wall of the hollow groove, a plurality of groups of the thread ring are arranged above and below the thread ring, an inner ring of the thread ring is provided with an inner thread which is connected with an outer ring of the rivet core through thread fit, the rivet shell can be inserted into a hole drilled on a wall surface or other positions in advance, when the rivet core is connected in the thread ring inside the rivet shell through thread fit, the rivet core is abutted against a positioning block to stretch out the rivet shell to tightly support the outside of the rivet shell in the hole, the fixation is completed, the fixing is convenient, when the rivet shell is removed, the rivet core is taken down, the positioning block in the rivet shell is reset through the pulling effect of a spring, the rivet shell can be directly moved out from the hole, is convenient and practical.

Description

Wire-drawing type external locking self-plugging rivet

Technical Field

The utility model relates to a rivet field, in particular to wire drawing type external locking self-plugging rivet.

Background

The rivet is a part for connecting the riveted part by self deformation or interference in riveting, and commonly used are an R-shaped rivet, a fan rivet, a pistil-out rivet (pistil-out rivet), a tree-shaped rivet, a semi-circular head, a flat head, a semi-hollow rivet, a solid rivet, a countersunk head rivet, a self-plugging rivet and a hollow rivet, and the riveted part is usually connected by self deformation. Generally, cold riveting is used for riveting less than 8 mm, hot riveting is used for riveting larger than the size, and the wire drawing rivet is also called a cup type rivet and belongs to a structural type self-plugging rivet.

The wire drawing type external locking self-plugging rivet that uses on the existing market is of a great variety, but its dabber expansion head is mostly the integral type structure, and the dabber is embedded into the rivet body after fixed completion and takes out inconveniently, and very trouble when dismantling the rivet body is simultaneously when using, really to the measure of rivet body and rivet dabber locking, fixed fastening nature is relatively poor.

Therefore, it is necessary to provide a self-locking blind rivet of the wire drawing type to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wire drawing type external locking self-plugging rivet to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a wire drawing type external locking blind rivet comprises a rivet shell, a rivet core is arranged above the rivet shell, a hollow groove is arranged in the rivet shell, a thread ring is fixedly arranged on the inner wall of the hollow groove, a plurality of groups of threaded rings are arranged up and down, internal threads which are matched and connected with the outer ring of the rivet core through threads are arranged at the inner ring of the threaded ring, a limiting plate limited above the rivet shell is integrally arranged at the upper end of the rivet core, a plurality of groups of positioning holes are arranged on the surface of the rivet shell, a positioning block is movably arranged in the positioning hole, the upper surface of the positioning block positioned in the hollow groove is provided with an arc surface, when the rivet core is clamped into the rivet shell in the installation process, the end part of the rivet core is abutted against the arc-shaped surface, so that the positioning block extends out of the rivet shell from the positioning hole, and the outer ring of the rivet core is connected to the inner ring of the threaded ring through threaded fit.

Preferably, the positioning holes are arranged at equal intervals up and down, and are symmetrically arranged on two sides of the rivet shell.

Preferably, the locating piece is located the fixed welding of tip lower surface in hollow groove and has the board that resets, be provided with flexible groove on the inner wall in hollow groove, the fixed welding in bottom in flexible groove has the spring of drawing the board that resets, when the locating piece stretches out from the locating hole, the board that resets laminates on the inner wall in hollow groove, and the tip activity laminating of locating piece is in the outer lane department of rivet core.

Preferably, the multiple sets of positioning blocks are arranged at intervals among the multiple sets of threaded rings.

Preferably, one end of the positioning block, which is far away from the hollow groove, is provided with a conical head which is easily inserted into a structure outside the rivet shell.

Preferably, the bottom of the rivet housing is provided with a tip for easy insertion into the exterior structure of the rivet housing.

Preferably, the outer ring of the upper end of the rivet shell is fixedly welded with two groups of upper limiting rings and lower limiting rings which are respectively arranged up and down.

The utility model discloses a technological effect and advantage:

1. the utility model relates to a wire-drawing type external lock blind rivet, which comprises a rivet shell, a rivet core is arranged above the rivet shell, a hollow groove is arranged inside the rivet shell, a thread ring is fixedly arranged on the inner wall of the hollow groove, a plurality of groups of thread rings are arranged above and below the thread ring, an inner ring of the thread ring is provided with an inner thread which is connected with an outer ring of the rivet core through thread matching, the rivet shell can be inserted in holes drilled on the wall surface or other positions in advance, when the rivet core is connected in the threaded ring inside the rivet shell in a threaded fit manner, the rivet core props against the positioning block and extends out of the rivet shell to tightly support the outside of the rivet shell in the hole, so that the fixation is completed, the fixation is convenient, when the rivet shell is dismantled, the rivet core is taken down, the positioning block in the rivet shell is reset through the pulling and holding action of the spring, and the rivet shell can be directly moved out of the hole, so that the rivet shell is convenient and practical;

2. the utility model discloses a wire drawing type external lock self-plugging rivet, the fixed welding of the upper end outer lane department of rivet shell has two sets of last spacing rings, the lower spacing ring that sets up from top to bottom respectively, goes up spacing ring and lower spacing ring and has guaranteed that the rivet shell tip has reserved partly and has supplied to stimulate the part that the rivet shell took out the preformed hole, convenient and practical.

Drawings

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

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is an enlarged schematic view of a structure shown in fig. 2 according to the present invention.

In the figure: 1. a rivet housing; 2. a rivet core; 3. an upper limiting ring; 4. a lower limit ring; 5. positioning holes; 6. positioning blocks; 7. an arc-shaped surface; 8. a threaded ring; 9. a reset plate; 10. a spring; 11. a telescopic groove; 12. a conical head; 13. a tip; 14. and a limiting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a wire-drawing type external lock blind rivet as shown in figures 1-3, which comprises a rivet shell 1, a rivet core 2 is arranged above the rivet shell 1, a hollow groove is arranged inside the rivet shell 1, a thread ring 8 is fixedly arranged on the inner wall of the hollow groove, a plurality of groups of thread rings 8 are arranged above and below the thread ring 8, an inner ring of the thread ring 8 is provided with an inner thread which is connected with the outer ring of the rivet core 2 through thread fit, the upper end of the rivet core 2 is integrally provided with a limit plate 14 which is limited above the rivet shell 1, the surface of the rivet shell 1 is provided with a plurality of groups of locating holes 5, a locating block 6 is movably arranged in the locating hole 5, the upper surface of the locating block 6 which is positioned in the hollow groove is provided with an arc surface 7, when the rivet core 2 is clamped into the rivet shell 1, the end part of the rivet core 2 is abutted against the arc surface 7 so that the locating block 6 extends out of the rivet shell 1 from the locating hole 5, and the outer ring of the rivet core 2 is connected with the inner ring of the threaded ring 8 through thread matching.

In the embodiment, the positioning holes 5 are arranged at equal intervals up and down, the positioning holes 5 are symmetrically arranged on two sides of the rivet shell 1, the plurality of groups of positioning holes 5 are symmetrically arranged, and when the positioning blocks 6 extend out of the positioning holes 5, the fixing strength of the rivet shell 1 is improved.

It should be noted that the positioning block 6 is fixedly welded with a reset plate 9 on the lower surface of the end portion of the hollow groove, the inner wall of the hollow groove is provided with a telescopic groove 11, the bottom of the telescopic groove 11 is fixedly welded with a spring 10 for pulling the reset plate 9, when the positioning block 6 extends out of the positioning hole 5, the reset plate 9 is attached to the inner wall of the hollow groove, and the end portion of the positioning block 6 is movably attached to the outer ring of the rivet core 2, when the rivet core 2 is inserted into the rivet shell 1, the rivet core 2 abuts against the positioning block 6 to move out of the positioning hole 5, at this time, the reset plate 9 is attached to the inner wall of the hollow groove, the spring 10 is compressed, and when the rivet core 2 moves out, the reset plate 9 and the positioning block 6 can be reset under the reset action of the spring 10.

Wherein, the multiple sets of locating blocks 6 are arranged among the multiple sets of threaded rings 8 at intervals.

The end of the locating block 6 remote from the hollow channel is provided with a conical head 12 which is easily inserted into a structure outside the rivet housing 1.

The bottom of the rivet housing 1 is provided with a tip 13 that is easily inserted into the outer structure of the rivet housing 1.

The outer ring of the upper end of the rivet shell 1 is fixedly welded with two groups of upper limiting rings 3 and lower limiting rings 4 which are respectively arranged up and down.

The working principle is as follows: comprises a rivet shell 1, a rivet core 2 is arranged above the rivet shell 1, a hollow groove is arranged inside the rivet shell 1, a thread ring 8 is fixedly arranged on the inner wall of the hollow groove, a plurality of groups of thread rings 8 are arranged up and down, an inner ring of the thread ring 8 is provided with an inner thread which is in thread fit connection with an outer ring of the rivet core 2, the rivet shell 1 can be inserted in a wall surface or holes drilled at other positions in advance, when the rivet core 2 is connected in the threaded ring 8 inside the rivet shell 1 through thread matching, the rivet core 2 props against the positioning block 6 and extends out of the rivet shell 1 to support the outside of the rivet shell 1 in the hole, the fixation is completed, the fixation is convenient, when the rivet shell 1 is dismantled, the rivet core 2 is taken down, the positioning block 6 in the rivet shell 1 is reset through the pulling and holding action of the spring 10, and the rivet shell 1 can be directly moved out of the hole, so that the rivet shell is convenient and practical; the fixed welding of the upper end outer lane department of rivet shell 1 has two sets of upper limit ring 3, the lower limit ring 4 that set up from top to bottom respectively, and upper limit ring 3 and lower limit ring 4 have guaranteed that 1 tip of rivet shell reserves partly and has supplied the part that pulling rivet shell 1 took out the preformed hole, convenient and practical.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a wire drawing type external lock blind rivet, includes rivet shell (1), its characterized in that: the rivet is characterized in that a rivet core (2) is arranged above the rivet shell (1), a hollow groove is formed in the rivet shell (1), a threaded ring (8) is fixedly arranged on the inner wall of the hollow groove, multiple groups of threaded rings (8) are arranged up and down, an inner ring of the threaded ring (8) is provided with an inner thread which is connected with an outer ring of the rivet core (2) in a threaded fit manner, a limiting plate (14) limited above the rivet shell (1) is integrally arranged at the upper end of the rivet core (2), multiple groups of positioning holes (5) are formed in the surface of the rivet shell (1), a positioning block (6) is movably arranged in each positioning hole (5), an arc-shaped surface (7) is arranged on the upper surface of the positioning block (6) located in the hollow groove, when the rivet core (2) is clamped into the rivet shell (1), the arc-shaped surface (7) at the end part of the rivet core (2) enables the positioning block (6) to conflict with the positioning block (5) and extend out of the rivet shell (1), and the outer ring of the rivet core (2) is connected with the inner ring of the threaded ring (8) through thread fit.

2. The wire-drawing type external lock blind rivet according to claim 1, characterized in that: the positioning holes (5) are arranged at equal intervals from top to bottom, and the positioning holes (5) are symmetrically arranged on two sides of the rivet shell (1).

3. The wire-drawing type external lock blind rivet according to claim 1, characterized in that: the fixed welding of tip lower surface that locating piece (6) are located hollow groove has reset plate (9), be provided with flexible groove (11) on the inner wall in hollow groove, the fixed welding in bottom in flexible groove (11) has spring (10) of drawing holding reset plate (9), when locating piece (6) stretches out from locating hole (5), reset plate (9) laminating is on the inner wall in hollow groove, and the tip activity laminating of locating piece (6) is in the outer lane department of rivet core (2).

4. The wire-drawing type external lock blind rivet according to claim 1, characterized in that: the multiple groups of positioning blocks (6) are arranged among the multiple groups of threaded rings (8) at intervals.

5. The wire-drawing type external lock blind rivet according to claim 1, characterized in that: and one end of the positioning block (6) far away from the hollow groove is provided with a conical head (12) which is easily inserted into a structure outside the rivet shell (1).

6. The wire-drawing type external lock blind rivet according to claim 1, characterized in that: the bottom of the rivet housing (1) is provided with a tip (13) that is easily inserted into the outer structure of the rivet housing (1).

7. The wire-drawing type external lock blind rivet according to claim 1, characterized in that: the rivet is characterized in that an upper limiting ring (3) and a lower limiting ring (4) which are respectively arranged up and down are fixedly welded at the outer ring of the upper end of the rivet shell (1).