Single-strand rivet with waterproof groove

Abstract

The utility model belongs to the technical field of rivets, and relates to a single-strand rivet with a waterproof groove, which comprises a rivet core and a rivet shell, the rivet core is arranged in the rivet shell in a penetrating manner, the waterproof groove is arranged on the rivet core, a sealing bulge matched with the waterproof groove is arranged in the rivet shell, a groove corresponding to the sealing bulge is arranged outside the rivet shell, and a crumple groove is arranged outside the rivet shell. The waterproof grooves are formed in the rivet core close to the rivet head, the rivet shell located at the positions of the waterproof grooves is pressed after the rivet core is sleeved with the rivet shell, the rivet shell is tightly attached to the waterproof grooves in the rivet core, after rivet pulling is conducted, the rivet shell clamped into the waterproof grooves can still be kept in the attached state after deformation, and the waterproof effect is good. Therefore, the sealing effect between the rivet core and the rivet shell is achieved, sealing in the mode that a traditional sealing section extrudes and destroys the rivet shell is avoided, and the overall connection strength of the rivet shell is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of rivets and relates to a single-strand rivet with a waterproof groove. Background Art

[0002] Rivets are nail-shaped objects used to connect two parts with through-holes. During the riveting process, a rivet gun deforms the rivet, securing the two parts together. Using waterproof rivets requires drilling holes in the two parts to be connected before inserting the rivet. This process can easily cause burrs to form on the edges of the parts, preventing the rivet shell from fitting tightly against the surface of the part, resulting in poor sealing and waterproofing. Furthermore, after installation, the rivet's connection to the part is weak, making it prone to loosening or even falling off during prolonged use.

[0003] The existing Chinese utility model patent with announcement number CN221942922U, a waterproof single-drum rivet includes a nail core and a nail shell. The nail core is set through the nail shell. A protrusion is provided near the outer side of the bottom of the nail shell to improve the connection strength; a groove is provided at the edge of the rivet hole at the bottom of the nail shell.

[0004] The existing technology has the following technical defects:

[0005] The above technical solution is that when the rivet core is pulled down by the rivet gun, the sealing section is deformed and embedded in the sealing area of ​​the nail shell, thereby sealing the center of the rivet and squeezing and destroying the nail shell to achieve the sealing effect by plastic deformation. Although the sealing effect is achieved, the stress-bearing part of the nail shell is damaged as a whole, and long-term use will cause it to break, thereby affecting the fixing effect. Utility Model Content

[0006] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a single-strand rivet with a waterproof groove.

[0007] The single-strand rivet with a waterproof groove described in the utility model includes a nail core and a nail shell. The nail core is arranged through the nail shell. The nail core is provided with a waterproof groove. A sealing protrusion adapted to the waterproof groove is provided inside the nail shell. A groove corresponding to the sealing protrusion is provided on the outside of the nail shell. A collapse groove is provided on the outside of the nail shell.

[0008] Working process or working principle:

[0009] When in use, it is passed through the holes of two connected parts, and the rivet gun is used to continuously apply pressure to the nail shell with the nail core, so that a single drum expansion area is formed in the nail shell between the groove corresponding to the sealing protrusion and the collapse groove, and the two parts are gradually clamped and connected.

[0010] The top of the nail core is provided with a nail head, the bottom of the nail core is connected with a rivet gun coupling section through a fracture, and the rivet gun coupling section is provided with a friction wire.

[0011] The diameter of the bottom of the nail head is not less than the diameter of the top of the nail shell, and the diameter of the bottom of the nail head can be greater than or equal to the diameter of the nail shell.

[0012] The waterproof groove is arranged on the nail core close to the bottom of the nail head.

[0013] The diameter of the nail core is smaller than the inner diameter of the nail shell, and there is no structure in the nail core that is larger than the inner diameter of the nail shell, which will not destroy the overall structure of the nail shell and ensure that its strength is not destroyed.

[0014] The bottom of the nail shell is provided with an avoidance groove at the edge of the rivet hole, through which the edge burrs of the part opening can be covered, so that the bottom of the nail shell can be in close contact with the part without burrs or impurities that affect the connection.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] The utility model provides a plurality of waterproof grooves on the nail core near the nail head, and after the nail shell is put on the nail core, the nail shell located at the waterproof groove position is pressed, so that the nail shell and the waterproof groove on the nail core are tightly fitted. After riveting, the nail shell stuck in the waterproof groove can still maintain the fitting state after deformation, thereby achieving a sealing effect between the nail core and the nail shell, avoiding the sealing in the form of squeezing and destroying the nail shell by the traditional sealing section, and ensuring the overall connection strength of the nail shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an assembly diagram of an embodiment of the utility model.

[0018] Figure 2 This is a structural diagram of a nail core in one embodiment of the present invention.

[0019] Figure 3 This is a structural diagram of a nail shell in an embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of a state after riveting according to an embodiment of the present invention.

[0021] In the figure: 1. Nail head; 2. Waterproof groove; 3. Nail core; 4. Fracture; 5. Rivet gun coupling section; 6. Friction wire; 7. Sealing protrusion; 8. Collapse groove; 9. Avoidance groove; 10. Nail shell. DETAILED DESCRIPTION

[0022] Example 1

[0023] like Figures 1 to 4As shown, the single-strand rivet with a waterproof groove 2 described in the present invention includes a nail core 3 and a nail shell. The nail core 3 is arranged in the nail shell. The nail core 3 is provided with a waterproof groove 2. A sealing protrusion 7 adapted to the waterproof groove 2 is provided in the nail shell. A groove corresponding to the sealing protrusion 7 is provided on the outside of the nail shell, and a collapse groove 8 is provided on the outside of the nail shell; a nail head 1 is provided on the top of the nail core 3, and a rivet gun coupling section 5 is connected to the bottom of the nail core 3 through a fracture 4. A friction wire 6 is provided on the rivet gun coupling section 5; the diameter of the bottom of the nail head 1 is not less than the diameter of the top of the nail shell. The bottom diameter of the nail head 1 can be greater than or equal to the diameter of the nail shell; the waterproof groove 2 is arranged on the nail core 3 close to the bottom of the nail head 1; the diameter of the nail core 3 is smaller than the inner diameter of the nail shell, and there is no structure in the nail core 3 that is larger than the inner diameter of the nail shell, which will not destroy the overall structure of the nail shell and ensure its strength is not destroyed; the bottom of the nail shell is provided with an avoidance groove 9 at the edge of the rivet hole, and the edge burrs of the part opening can be covered by the avoidance groove 9, so that the bottom of the nail shell can be in close contact with the part, and no burrs or impurities will be mixed in to affect the connection.

[0024] Working process or working principle:

[0025] When in use, the nail head 1 is passed through the holes of the two connected parts, and the nail head 1 is continuously applied with pressure to the nail shell through the rivet gun, so that a single drum expansion area is formed in the nail shell between the groove corresponding to the sealing protrusion 7 and the collapse groove 8, and the two parts are gradually clamped and connected. The nail core 3 is continuously pulled until the nail shell can no longer be deformed, so that the force at the fracture 4 increases sharply, and the fracture 4 is disconnected to complete the connection.

[0026] The utility model provides a plurality of waterproof grooves 2 on the nail core 3 near the nail head 1, and after the nail shell is put on the nail core 3, the nail shell located at the position of the waterproof groove 2 is pressed, so that the nail shell and the waterproof groove 2 on the nail core 3 are tightly fitted. After riveting, the nail shell stuck in the waterproof groove 2 can still maintain the fitting state after deformation, thereby achieving a sealing effect between the nail core 3 and the nail shell, avoiding the sealing in the form of squeezing and destroying the nail shell by the traditional sealing section, and ensuring the overall connection strength of the nail shell.

[0027] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up and down, does not constitute a limitation of the present invention and is only for the convenience of description.

Claims

1. A single-strand rivet with a waterproof groove, comprising a rivet core (3) and a rivet shell (10), wherein the rivet core (3) is disposed through the rivet shell (10), and is characterized in that: The nail core (3) is provided with a waterproof groove (2), the nail shell (10) is provided with a sealing protrusion (7) adapted to the waterproof groove (2), the outside of the nail shell (10) is provided with a groove corresponding to the sealing protrusion (7), and the outside of the nail shell (10) is provided with a collapse groove (8).

2. The single-strand rivet with waterproof groove according to claim 1, characterized in that: The top of the nail core (3) is provided with a nail head (1), and the bottom of the nail core (3) is connected to a rivet gun coupling section (5) through a fracture (4), and a friction wire (6) is provided on the rivet gun coupling section (5).

3. The single-strand rivet with waterproof groove according to claim 2, characterized in that: The diameter of the bottom of the nail head (1) is not less than the diameter of the top of the nail shell (10).

4. The single-strand rivet with waterproof groove according to claim 3, characterized in that: The waterproof groove (2) is arranged on the nail core (3) close to the bottom of the nail head (1).

5. The single-strand rivet with waterproof groove according to any one of claims 1 to 4, characterized in that: The diameter of the nail core (3) is smaller than the inner diameter of the nail shell (10).

6. The single-strand rivet with waterproof groove according to claim 5, characterized in that: The bottom of the nail shell (10) is provided with an avoidance groove (9) at the edge of the rivet hole.

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