Combined self-plugging rivet

Abstract

The utility model relates to the field of self-plugging rivets, and discloses a combined type self-plugging rivet which comprises a rivet rod, a second threaded groove is formed in one end of the rivet rod, a second threaded rod is connected to the middle of the second threaded groove in a threaded mode, a connecting rod is fixedly connected to the end of the second threaded rod, and a first threaded groove is formed in the other end of the connecting rod. A first threaded rod is in threaded connection with the middle of the first threaded groove, an expansion head is fixedly connected to the end of the first threaded rod, a riveting barrel is slidably connected to the outer side of the connecting rod, an end cap is fixedly connected to one end of the riveting barrel, and a fastening assembly is fixedly connected to the outer side of the end cap. According to the connector, the first threaded rod, the first threaded groove, the second threaded groove, the second threaded rod and the like are matched with one another, the expansion head, the riveting rod and the connecting rod can be separated, then after the connector is used, only the connecting rod needs to be replaced, and the connector can be used again, so that the use cost of the rivet is reduced, and use is very convenient.

Description

Technical Field

[0001] The utility model relates to the field of blind rivets, in particular to a combined blind rivet. Background Art

[0002] Blind rivets are a type of rivet used for single-sided riveting, but they must be riveted with a special tool, a rivet gun. During riveting, the rivet core is pulled by a special rivet gun to expand the rivet body and play a riveting role. This type of rivet is particularly suitable for riveting occasions where it is inconvenient to use ordinary rivets (which must be riveted from both sides), so it is widely used in construction, automobiles, ships, aircraft, machinery, electrical appliances, furniture and other products.

[0003] After searching, the Chinese patent announcement number: CN220185548U discloses a combined blind rivet, a nail barrel, the bottom of which is fixedly sleeved with a nail cap; a locking mechanism is arranged inside the nail barrel; the locking mechanism includes a positioning sleeve, a threaded sleeve and a locking screw, the positioning sleeve and the threaded sleeve are respectively arranged at the top and the top of the inner wall of the nail barrel, the sliding connection of the locking screw is inside the positioning sleeve, and the top of the locking screw is threadedly connected to the inside of the threaded sleeve. The utility model utilizes the design of the locking mechanism, by fixing a positioning sleeve and a threaded sleeve at the bottom and the top of the inner wall of the nail barrel respectively, and fixing the rivet on two objects through the action of a special tool, and then fixing the positioning sleeve and the threaded sleeve through the locking screw, locking the distance between the positioning sleeve and the threaded sleeve to remain unchanged, thereby avoiding the phenomenon of loosening of the connection between the rivet and the two objects when the objects vibrate.

[0004] Although the above technical solution avoids the situation where the rivet becomes loose when the object vibrates, it is a disposable tool and becomes invalid after one riveting is completed, which leads to a high cost and inconvenience in using the rivet. Therefore, a combined blind rivet is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a combined blind rivet, which aims to improve the problem that the blind rivets in the prior art are disposable and have high use costs.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a combined blind rivet, comprising a rivet rod, one end of the rivet rod is provided with a second thread groove, the middle part of the second thread groove is threadedly connected with a second thread rod, the second end of the thread rod is fixedly connected with a connecting rod, the other end of the connecting rod is provided with a first thread groove, the middle part of the first thread groove is threadedly connected with a first thread rod, the end of the first thread rod is fixedly connected with an expansion head, the outer side of the connecting rod is slidably connected with a rivet barrel, one end of the rivet barrel is fixedly connected with an end cap, and the outer side of the end cap is fixedly connected with a fastening assembly;

[0007] Through the above technical solution, the rivet rod and the connecting rod can be separated by the thread groove two and the threaded rod two, and the connecting rod and the expansion head can be separated by the thread groove one and the threaded rod one. In this way, after the riveting is completed, the rivet rod and the expansion head can be reused to reduce resource waste and reduce the cost of use.

[0008] As a further description of the above technical solution:

[0009] The fastening assembly comprises a washer, the washer is slidably connected to the outside of the rivet barrel, and the washer and the end cap are fixedly connected to a spring sheet on the side facing each other;

[0010] Through the above technical solution, when riveting, the gasket can be fully fitted to the object through the spring sheet, thereby reducing the shaking of the riveted joint caused by the shaking of the object.

[0011] As a further description of the above technical solution:

[0012] The outer periphery of the rivet barrel and the outer side of the washer are fixedly connected with a plurality of groups of evenly distributed protrusions;

[0013] Through the above technical solution, the protrusions can be embedded in the object in a small amount after riveting, thereby improving the riveting effect.

[0014] As a further description of the above technical solution:

[0015] A limiting groove is provided on the outer side of the rivet barrel, and the washer is slidably connected to the outer periphery of the limiting groove;

[0016] Through the above technical solution, after the limiting groove is opened, the washer can be prevented from sliding out from the outside of the rivet barrel, so that the rivet barrel, the end cap and the washer are formed into a whole, which is convenient for subsequent assembly.

[0017] As a further description of the above technical solution:

[0018] The outer periphery of the rivet rod is fixedly connected with a plurality of anti-slip grooves;

[0019] Through the above technical solution, the anti-slip pattern can increase the friction between the rivet rod and the rivet gun to ensure the riveting effect.

[0020] As a further description of the above technical solution:

[0021] The outer circumference of the connecting rod is provided with a fracture groove;

[0022] Through the above technical solution, the connecting rod can be broken at the position of the breaking groove to achieve riveting.

[0023] As a further description of the above technical solution:

[0024] A through slot is provided in the middle of the connecting rod, and the through slot passes through the middle of the fracture slot;

[0025] Through the above technical solution, after the connecting rod breaks, the through groove is divided into two parts, which can facilitate the separation of the connecting rod and the rivet rod as well as the connecting rod and the expansion head.

[0026] As a further description of the above technical solution:

[0027] A groove is formed at one end of the expansion head away from the connecting rod;

[0028] Through the above technical solution, the groove can conveniently clamp the expansion head, thereby realizing the separation of the expansion head and the connecting rod.

[0029] The utility model has the following beneficial effects:

[0030] 1. In the utility model, the expansion head, the rivet rod and the connecting rod can be separated respectively by cooperating with each other through the threaded rod 1, the threaded groove 1, the threaded groove 2, the threaded rod 2, etc., and then after the interface is used, only the connecting rod needs to be replaced to be used again, thereby reducing the use cost of the rivet and being very convenient to use.

[0031] 2. In the utility model, by the mutual cooperation of structures such as convex points, washers, springs, and limit grooves, when riveting an object, the rivet barrel can be deformed and fully contact the object, thereby improving the riveting effect of the object and avoiding the problem of shaking of the riveted joint due to shaking of the object. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A three-dimensional schematic diagram of a combined blind rivet proposed by the utility model;

[0033] Figure 2 This is a schematic diagram of the structure explosion of a combined blind rivet proposed by the utility model;

[0034] Figure 3 The utility model is a schematic diagram of the structure of a spring piece of a combined blind rivet.

[0035] Legend:

[0036] 1. Rivet rod; 2. Connecting rod; 3. Expansion head; 4. Rivet barrel; 5. End cap; 6. Washer; 7. Bump; 8. Limiting groove; 9. Groove; 10. Fracture groove; 11. Through groove; 12. Thread groove one; 13. Threaded rod one; 14. Thread groove two; 15. Threaded rod two; 16. Anti-slip pattern; 17. Shrapnel. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] Reference Figure 1-Figure 3 The utility model provides an embodiment: a combined blind rivet, including a rivet rod 1, a thread groove 14 is provided at one end of the rivet rod 1, a threaded rod 15 is threadedly connected to the middle of the thread groove 14, a connecting rod 2 is fixedly connected to the end of the threaded rod 15, a thread groove 12 is provided at the other end of the connecting rod 2, a threaded rod 13 is threadedly connected to the middle of the thread groove 12, an expansion head 3 is fixedly connected to the end of the threaded rod 13, a rivet barrel 4 is slidably connected to the outer side of the connecting rod 2, and an end cap 5 is fixedly connected to one end of the rivet barrel 4;

[0039] Specifically, after the riveting is completed, the rivet rod 1, the expansion head 3 and the connecting rod 2 can be separated by the thread groove 12, the threaded rod 1 13, the thread groove 2 14 and the threaded rod 2 15, and then the rivet rod 1 and the expansion head 3 are respectively connected to the new connecting rod 2 to assemble a new rivet. After the rivet barrel 4 and the end cap 5 are put on, riveting can be carried out again, which reduces the waste of resources and reduces the cost of use.

[0040] Reference Figure 1 and Figure 3 A fastening assembly is fixedly connected to the outer side of the end cap 5, and the fastening assembly includes a washer 6, which is slidably connected to the outer side of the rivet tube 4, and the washer 6 and the end cap 5 are fixedly connected to the sides facing each other with spring pieces 17. A plurality of groups of evenly distributed protrusions 7 are fixedly connected to the outer periphery of the rivet tube 4 and the outer side of the washer 6. A limiting groove 8 is provided on the outer side of the rivet tube 4, and the washer 6 is slidably connected to the outer periphery of the limiting groove 8.

[0041] Specifically, during riveting, the rivet tube 4 will be deformed under the action of the expansion head 3, and while deforming, the end cap 5 and the gasket 6 will be tightened, so that the gasket 6 can fully fit the object. Then, after riveting, the gasket 6 can fully contact the object under the action of the spring sheet 17. Even if the object shakes, the gasket 6 can fully fit the object under the action of the spring sheet 17, thereby avoiding the shaking of the rivet after riveting.

[0042] Reference Figure 1-Figure 2 The outer periphery of the rivet rod 1 is fixedly connected with a plurality of anti-slip grooves 16, the outer periphery of the connecting rod 2 is provided with a fracture groove 10, the middle of the connecting rod 2 is provided with a through groove 11, the through groove 11 passes through the middle of the fracture groove 10, and the end of the expansion head 3 away from the connecting rod 2 is provided with a groove 9;

[0043] Specifically, the anti-slip groove 16 is used to increase the friction between the rivet rod 1 and the rivet gun to ensure the riveting effect. After the riveting is completed, the connecting rod 2 will break at the position of the breaking groove 10. At the same time, the through groove 11 will be divided into two parts. The divided through groove 11 will form an I-shaped groove in both parts of the connecting rod 2. Then, the connecting rod 2 and the expansion head 3, as well as the connecting rod 2 and the rivet rod 1 can be separated through the I-shaped groove to facilitate the reuse of the rivet rod 1 and the expansion head 3. The purpose of providing the groove 9 is to facilitate the clamping of the expansion head 3.

[0044] Working principle: When in use, after connecting the rivet rod 1 with the rivet gun, the rivet barrel 4 is inserted into the middle of the object to be riveted, and the rivet rod 1 is pulled by the rivet gun, so that the expansion head 3 squeezes the rivet barrel 4, causing the rivet barrel 4 to deform, so as to complete the riveting of the object. When the rivet barrel 4 is deformed, the washer 6 can first approach the end cap 5 and squeeze the spring sheet 17, causing the spring sheet 17 to deform. When the rivet barrel 4 is deformed, it can act on the convex point 7 synchronously to better contact with the object, thereby increasing the connection effect of the object. At the same time, the spring sheet 17 can provide a certain elastic force for the washer 6, so that the washer 6 can fully contact with the object, thereby ensuring the stability of the riveting when the object shakes;

[0045] Secondly, after the riveting is completed, the connecting rod 2 will break at the position of the breaking groove 10. At this time, the rivet rod 1 can be separated from the connecting rod 2 through the thread groove 14 and the threaded rod 15. At the same time, the expansion head 3 can be separated from the connecting rod 2 through the thread groove 12 and the threaded rod 13. Then, you only need to connect the expansion head 3 and the rivet rod 1 with the new connecting rod 2 to assemble a complete rivet. After cooperating with the rivet barrel 4, you can carry out the next riveting operation, thereby reducing the use cost of the rivet and making it very convenient to use.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined blind rivet, comprising a rivet rod (1), characterized in that: The rivet rod (1) has a second thread groove (14) at one end, a second thread rod (15) is threadedly connected to the middle of the second thread groove (14), the end of the second thread rod (15) is fixedly connected to a connecting rod (2), the other end of the connecting rod (2) has a first thread groove (12), a first thread rod (13) is threadedly connected to the middle of the first thread groove (12), the end of the first thread rod (13) is fixedly connected to an expansion head (3), a rivet barrel (4) is slidably connected to the outside of the connecting rod (2), one end of the rivet barrel (4) is fixedly connected to an end cap (5), and a fastening assembly is fixedly connected to the outside of the end cap (5).

2. A combined blind rivet according to claim 1, characterized in that: The fastening assembly comprises a washer (6), the washer (6) being slidably connected to the outside of the rivet barrel (4), and a spring sheet (17) being fixedly connected to the opposite sides of the washer (6) and the end cap (5).

3. A combined blind rivet according to claim 2, characterized in that: The outer periphery of the rivet barrel (4) and the outer side of the washer (6) are fixedly connected with a plurality of groups of evenly distributed protrusions (7).

4. A combined blind rivet according to claim 2, characterized in that: A limiting groove (8) is provided on the outer side of the rivet barrel (4), and the washer (6) is slidably connected to the outer periphery of the limiting groove (8).

5. The combined blind rivet according to claim 1, characterized in that: A plurality of anti-slip grooves (16) are fixedly connected to the outer periphery of the rivet rod (1).

6. A combined blind rivet according to claim 1, characterized in that: A fracture groove (10) is provided on the outer circumference of the connecting rod (2).

7. A combined blind rivet according to claim 6, characterized in that: A through slot (11) is provided in the middle of the connecting rod (2), and the through slot (11) passes through the middle of the fracture slot (10).

8. The combined blind rivet according to claim 1, characterized in that: A groove (9) is formed at one end of the expansion head (3) away from the connecting rod (2).

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