Single-drum self-plugging rivet

Abstract

The utility model provides a single-drum self-plugging rivet, which relates to the technical field of rivets and comprises a rivet body and a mandrel, the mandrel is arranged inside the rivet body, a pull block is fixedly mounted at one end of the mandrel, a first connecting component is arranged at one end of the rivet body, a second connecting component is arranged on a shaft body of the mandrel, and the first connecting component is connected with the second connecting component. The rivet body is connected with the mandrel through the first connecting assembly and the second connecting assembly. According to the utility model, after the rivet body passes through the hole by a worker, the mandrel is lifted, so that the pulling block can push the clamping sleeve of the rivet body, the clamping sleeve deforms and is matched with the limiting block of the rivet body so as to be connected into the hole, and when the rivet body is lifted, the clamping block moves to the position of the supporting groove; and then under the pushing effect of reset of the spring, the clamping block can be inserted into the supporting groove, so that the mandrel is supported, the situation that the mandrel is prone to loosening under vibration or dynamic loads is avoided, and therefore the reliability and durability of connection are improved.

Description

Technical Field

[0001] This utility model relates to the field of rivet technology, and more specifically, to a single-drum pull rivet. Background Technology

[0002] A single-drum blind rivet, also known as a single-drum pull rivet, is a special type of blind pull rivet. After riveting, its tail forms a single-sided bulge structure, providing stronger pull-out resistance and vibration resistance, making it suitable for applications requiring high connection strength. For example, a single-drum blind rivet disclosed in publication number "CN215634246U" includes a first rivet sleeve, a second rivet sleeve movably connected to one end of the first rivet sleeve, and a third rivet sleeve movably connected to the end of the second rivet sleeve away from the first rivet sleeve. Each of the first, second, and third rivet sleeves has a top-fixing rubber sleeve inside. A limiting seat is provided at the other end of the first rivet sleeve, and the rivet body is movably connected inside the limiting seat. This invention, through the arrangement of the first, second, and third rivet sleeves, the top-fixing rubber sleeve, the rivet body, the first connecting rod, the second connecting rod, and the third connecting rod, enables rapid adjustment of the rivet.

[0003] However, in the above technical solution, the single-drum blind rivet lacks a support structure between the rivet body and the limiting seat after the core is pulled. The lack of support will cause a small gap between the rivet body and the limiting seat, which is prone to loosening under vibration or dynamic load, reducing the reliability and durability of the connection. Utility Model Content

[0004] The main purpose of this utility model is to provide a single-drum blind rivet, which can effectively solve the problem in the background art where the rivet body lacks a support structure between itself and the limiting seat after the core is pulled. The lack of support will cause a small gap between the rivet body and the limiting seat, which is prone to loosening under vibration or dynamic load, reducing the reliability and durability of the connection.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A single-drum blind rivet includes a rivet body and a mandrel, wherein the mandrel is disposed inside the rivet body and a pull block is fixedly installed at one end of the mandrel;

[0007] The rivet body is provided with a first connecting component at one end, and the mandrel body is provided with a second connecting component. The rivet body and the mandrel are connected through the first connecting component and the second connecting component.

[0008] Preferably, the first connecting component includes a connecting ring, which is fixedly installed at one end of the rivet body, and a support groove is provided on the inner wall of the connecting ring.

[0009] Preferably, the second connecting component includes a plurality of mounting slots, each mounting slot being formed on one side of the spindle shaft, each mounting slot having a sliding sleeve fixedly installed therein, each sliding sleeve having a limiting block fixedly installed therein, each limiting block having a sliding column slidably disposed through one side, and adjacent sliding columns having a locking block fixedly installed at one end.

[0010] Each of the sliding pins has a stop fixedly installed at one end, and each of the sliding sleeves is provided with an elastic element that can be compressed and reset.

[0011] Preferably, the elastic element is a spring.

[0012] Preferably, a positioning ring is fixedly installed inside the support groove.

[0013] Preferably, the inner wall surface of the positioning ring is provided with a groove, and each of the locking blocks is inserted into the groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) After the worker passes the rivet body through the hole, he pulls the mandrel so that the pull block can push the rivet body's sleeve, causing the sleeve to deform and cooperate with the rivet body's limiting block, thus connecting it in the hole. When the rivet body is pulled, the locking block moves to the support groove position. Then, under the pushing action of the spring return, the locking block can be inserted into the support groove, thus supporting the mandrel and preventing the mandrel from loosening under vibration or dynamic load, thereby improving the reliability and durability of the connection. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of a single-drum pull rivet according to the present invention;

[0017] Figure 2 This is a top view schematic diagram of a single-drum pull rivet according to the present invention;

[0018] Figure 3 This utility model relates to a single-drum blind rivet. Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0019] Figure 4 This utility model relates to a single-drum pull rivet. Figure 2 Schematic diagram of the cross-sectional structure at point BB;

[0020] Figure 5 This utility model relates to a single-drum blind rivet. Figure 4 Enlarged schematic diagram of the structure at point A;

[0021] Figure 6 This utility model relates to a single-drum pull rivet. Figure 4 Enlarged schematic diagram of the structure at point B.

[0022] In the diagram: 1. Rivet body; 2. Mandrel; 3. Pull block; 4. First connecting assembly; 401. Connecting ring; 402. Support groove; 5. Second connecting assembly; 501. Mounting groove; 502. Sliding sleeve; 503. Limiting block; 504. Sliding column; 505. Locking block; 506. Stop block; 507. Elastic element; 6. Positioning ring; 7. Groove. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0024] like Figures 1-6 As shown, a single-drum pull rivet includes a rivet body 1 and a spindle 2. The spindle 2 is disposed inside the rivet body 1, and a pull block 3 is fixedly installed at one end of the spindle 2.

[0025] The rivet body 1 is provided with a first connecting component 4 at one end, and the spindle 2 is provided with a second connecting component 5 on its shaft. The rivet body 1 and the spindle 2 are connected through the first connecting component 4 and the second connecting component 5.

[0026] The first connecting component 4 includes a connecting ring 401, which is fixedly installed at one end of the rivet body 1. A support groove 402 is provided on the inner wall of the connecting ring 401.

[0027] The second connecting component 5 includes several mounting slots 501. Each mounting slot 501 is opened on one side of the spindle 2 shaft. Each mounting slot 501 is fixedly installed with a sliding sleeve 502. Each sliding sleeve 502 is fixedly installed with a limiting block 503. Each limiting block 503 has a sliding post 504 slidably arranged through one side. One end of adjacent sliding posts 504 is fixedly installed with a locking block 505.

[0028] Each sliding column 504 has a stop 506 fixedly installed at one end, and each sliding sleeve 502 is provided with an elastic element 507 that can be compressed and reset.

[0029] The elastic element 507 is a spring.

[0030] After the worker passes the rivet body 1 through the hole, the mandrel 2 is pulled up, so that the pull block 3 can push the retaining sleeve of the rivet body 1, causing the retaining sleeve to deform and cooperate with the limiting ring of the rivet body 1, thereby connecting it in the hole. When the rivet body 1 is pulled up, the retaining block 505 moves to the support groove 402 position. Then, under the pushing action of the spring return, the retaining block 505 can be inserted into the support groove 402, thereby supporting the mandrel 2 and preventing the mandrel 2 from loosening under vibration or dynamic load, thus improving the reliability and durability of the connection.

[0031] In another embodiment of this utility model, a positioning ring 6 is fixedly installed inside the support groove 402.

[0032] The inner wall surface of the positioning ring 6 has a groove 7, and each locking block 505 is inserted into the groove 7. The positioning ring 6 is made of rubber material.

[0033] By setting a locking block 505 made of rubber material and a groove 7, the friction between the surface of the locking block 505 and the inside of the groove 7 increases after the locking block 505 enters the groove 7, thereby improving the stability during support.

[0034] The working principle of this single-drum blind rivet:

[0035] In use, after the worker passes the rivet body 1 through the hole, the mandrel 2 is pulled up, so that the pull block 3 can push the retaining sleeve of the rivet body 1, causing the retaining sleeve to deform and cooperate with the limiting ring of the rivet body 1, thereby connecting it in the hole. When the rivet body 1 is pulled up, the retaining block 505 moves to the support groove 402 position. Then, under the pushing action of the spring return, the retaining block 505 can be inserted into the support groove 402, thereby supporting the mandrel 2 and preventing the mandrel 2 from loosening under vibration or dynamic load, thus improving the reliability and durability of the connection.

[0036] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. A single-convex cored rivet comprising a rivet body (1) and a mandrel (2), characterised in that: The mandrel (2) is located inside the rivet body (1), and a pull block (3) is fixedly installed at one end of the mandrel (2); The rivet body (1) is provided with a first connecting component (4) at one end, and the spindle (2) is provided with a second connecting component (5) on its shaft. The rivet body (1) and the spindle (2) are connected through the first connecting component (4) and the second connecting component (5).

2. A single-die cored rivet according to claim 1, wherein: The first connecting component (4) includes a connecting ring (401), which is fixedly installed at one end of the rivet body (1), and a support groove (402) is provided on the inner wall of the connecting ring (401).

3. A single-die cored rivet according to claim 2, wherein: The second connecting component (5) includes a plurality of mounting slots (501), each mounting slot (501) is opened on one side of the spindle (2) shaft, each mounting slot (501) is fixedly installed with a sliding sleeve (502), each sliding sleeve (502) is fixedly installed with a limiting block (503), each limiting block (503) is slidably provided with a sliding column (504) through one side, and a locking block (505) is fixedly installed at one end of adjacent sliding columns (504); Each of the sliding pins (504) has a stop block (506) fixedly installed at one end, and each of the sliding sleeves (502) is provided with an elastic element (507) that can be compressed and reset.

4. A single-drum blind rivet according to claim 3, characterized in that: The elastic element (507) is a spring.

5. A single-drum blind rivet according to claim 4, characterized in that: A positioning ring (6) is fixedly installed inside the support groove (402).

6. A single-drum blind rivet according to claim 5, characterized in that: The inner wall surface of the positioning ring (6) is provided with a groove (7), and each of the locking blocks (505) is inserted into the groove (7).

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