Protruding sealing type double-drum rivet

Abstract

The utility model relates to a convex sealing type double-drum rivet, which belongs to the technical field of rivets and comprises a rivet core and a rivet shell, the rivet core is arranged in the rivet shell in a penetrating manner, and a rivet head, a groove sealing section, a fracture, a hand riveter combination section and a friction wire are arranged on the rivet core; the diameter of the groove sealing section is smaller than that of other adjacent parts; the nail shell is provided with a brim, and the upper portion of the brim is sleeved with a rubber gasket. A notch is formed in the outer wall of the nail shell. A protrusion is arranged at the bottom of the nail shell brim. According to the convex sealing type double-drum rivet, the rubber gasket is arranged on the rivet shell to seal a gap between the rivet shell and the connecting piece; during riveting, the bulge on the rivet shell is extruded by a hand riveter, so that the bulge is deformed and embedded into the groove sealing section, and a gap between the rivet shell and the rivet core is sealed; after being installed, the sealing device has good waterproof, dustproof and sealing performance, and the situation that the service life of equipment is affected due to poor sealing of a connecting part can be effectively avoided.

Description

Technical Field

[0001] The utility model relates to a raised sealing double-drum rivet, belonging to the technical field of rivets. Background Art

[0002] Double-drum rivets, as the name suggests, form two drum-shaped structures after riveting. Compared to single-drum rivets, their structural design is better suited to wider joint gaps or combinations of materials with different thicknesses. They also provide a stronger connection and better distribute tensile forces, making them suitable for applications requiring high joint strength and reliability. For example, in the aerospace industry, where component connections are made, or in heavy machinery casings, double-drum rivets can withstand significant tensile and shear forces, ensuring joint stability.

[0003] However, in some occasions where high sealing requirements are required, ordinary double-drum rivets cannot meet the sealing requirements such as waterproofing and dustproofing, which may cause dust, moisture, etc. to enter the equipment through the gap between the rivet and the connecting parts or the gap between the rivet core and the rivet shell, thereby affecting the service life of the equipment. Utility Model Content

[0004] In view of the above deficiencies in the existing technology, the technical problem to be solved by the present invention is: to provide a raised sealed double-drum rivet, which has good waterproof, dustproof and sealing properties after installation, and effectively avoids the situation where the service life of the equipment is affected by poor sealing of the connection parts.

[0005] The utility model discloses a raised sealing double-drum rivet, comprising a nail core and a nail shell, wherein the nail core is arranged through the nail shell, and the nail core is provided with a nail head, a groove sealing section, a fracture, a rivet gun coupling section, and a friction wire; the diameter of the groove sealing section is smaller than the diameter of other adjacent parts; the nail shell is provided with a brim, and a rubber gasket is provided on the upper part of the brim for sealing the gap between the nail shell and the connecting piece; the outer wall of the nail shell is provided with a notch to facilitate the formation of multiple expansion bulges during riveting; a protrusion is provided at the bottom of the nail shell brim, and after riveting, the protrusion is embedded in the groove sealing section under the extrusion of the rivet gun to seal the gap between the nail shell and the nail core.

[0006] The technical solution of the utility model is to provide a raised sealing double-drum rivet, in which a rubber gasket is arranged on the nail shell to seal the gap between the nail shell and the connecting piece; during riveting, the protrusion on the nail shell is squeezed by a rivet gun so that it is embedded in the groove sealing section, thereby sealing the gap between the nail shell and the nail core, thereby achieving good waterproof, dustproof and sealing properties.

[0007] Preferably, an assembly section is provided below the nail head, and the assembly section is provided with a plurality of teeth, and the nail core and the nail shell are assembled together through the teeth to prevent the nail core from falling out of the nail shell.

[0008] Preferably, a through stepped hole is provided in the center of the nail shell.

[0009] Furthermore, an avoidance groove is provided on the inner side of the brim of the nail shell, and the avoidance groove provides a movable space for the rubber gasket to avoid burrs on the edge of the rivet hole, so that the rivet can fit tightly with the connecting piece.

[0010] Preferably, the friction wire is located below the rivet gun coupling section to increase friction and better cooperate with the rivet gun to complete the riveting construction.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] The raised sealing double-drum rivet described in the utility model has a rubber gasket arranged on the rivet shell to seal the gap between the rivet shell and the connecting piece; during riveting, the rivet gun is used to squeeze the convexity on the rivet shell, so that it is deformed and embedded into the groove sealing section, thereby sealing the gap between the rivet shell and the rivet core; after installation, the utility model has good waterproof, dustproof and sealing properties, and can effectively avoid the situation where the service life of the equipment is affected by poor sealing of the connection parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the state of the utility model before riveting;

[0014] Figure 2 It is a structural diagram of the nail core;

[0015] Figure 3 It is a schematic diagram of the structure before the nail shell is assembled;

[0016] Figure 4 It is a schematic diagram of the state after riveting of the utility model.

[0017] In the figure: 1. Nail core; 11. Nail head; 12. Assembly section; 13. Groove sealing section; 14. Fracture; 15. Rivet gun coupling section; 16. Friction wire; 2. Nail shell; 21. Avoidance groove; 22. Protrusion; 23. Rubber gasket; 24. Notch; 3. Connector A; 4. Connector B. DETAILED DESCRIPTION

[0018] The present invention will be further described below with reference to specific embodiments.

[0019] However, the description of the present invention is merely an embodiment of structural and even functional description, and the scope of rights of the present invention is not limited by the embodiments described herein.

[0020] For example, multiple embodiments may have various modifications and various forms, and it should be understood that the scope of rights of the present invention includes equivalents that can implement the technical idea.

[0021] like Figure 1-4 As shown, this embodiment is implemented by the following technical solutions: it includes a nail core 1 and a nail shell 2, the nail core 1 is arranged through the nail shell 2, and the nail core 1 is provided with a nail head 11, a groove sealing section 13, a fracture 14, a rivet gun coupling section 15, and a friction wire 16; the diameter of the groove sealing section 13 is smaller than the diameter of other adjacent parts; the nail shell 2 is provided with a brim, and the upper part of the brim is provided with a rubber gasket 23 for sealing the gap between the nail shell 2 and the connecting piece; the outer wall of the nail shell 2 is provided with a notch 24 to facilitate the formation of multiple expansion bulges during riveting; the bottom of the brim of the nail shell 2 is provided with a protrusion 22, and after riveting, the protrusion 22 is embedded in the groove sealing section 13 under the extrusion of the rivet gun to seal the gap between the nail shell 2 and the nail core 1.

[0022] In this embodiment, an assembly section 12 is provided below the nail head 11. The assembly section 12 is provided with multiple teeth. The nail core 1 and the nail shell 2 are assembled together through the teeth to prevent the nail core 1 from falling out of the nail shell 2. A stepped hole is provided through the center of the nail shell 2. An avoidance groove 21 is provided on the inner side of the brim of the nail shell 2. The avoidance groove 21 provides a movable space for the rubber gasket 23 to avoid burrs on the edge of the rivet hole, so that the rivet can fit tightly with the connecting piece. The friction wire 16 is located below the rivet gun coupling section 15 to increase friction and better cooperate with the rivet gun to complete the riveting construction.

[0023] The method of using the utility model is as follows:

[0024] 1. Place the raised sealed double drum rivet in the mounting holes of connector A3 and connector B4;

[0025] 2. Connect the rivet gun to the rivet gun coupling section 15 on the mandrel, then use the rivet gun to pull the mandrel 1. The mandrel 1 continuously applies pressure to the shell 2, causing the shell 2 to expand at the upper and lower parts near the notch 24, gradually clamping and connecting the connector A3 and the connector B4.

[0026] 3. Continue to pull the nail core 1 until the nail shell 2 can no longer be deformed, the force on the fracture 14 increases sharply, the fracture 14 breaks, and the riveting is completed;

[0027] At this time, the rubber gasket 23 seals the gap between the nail shell 2 and the connecting piece B4 under the extrusion of the two; the protrusion 22 on the nail shell is deformed under the extrusion of the rivet gun and embedded in the groove sealing section 13, sealing the gap between the nail shell 2 and the nail core 1, achieving good waterproof, dustproof and sealing properties.

[0028] Of course, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of the embodiments of the present invention. The present invention is not limited to the above examples. Equivalent changes and improvements made by ordinary technicians in this technical field within the essential scope of the present invention should all fall within the scope of the patent of the present invention.

Claims

1. A raised sealed double drum rivet, characterized in that: The invention comprises a nail core (1) and a nail shell (2), wherein the nail core (1) is arranged through the nail shell (2), and the nail core (1) is provided with a nail head (11), a groove sealing section (13), a fracture (14), a rivet gun coupling section (15), and a friction wire (16); the diameter of the groove sealing section (13) is smaller than the diameter of other adjacent parts; the nail shell (2) is provided with a brim, and the upper part of the brim is provided with a rubber gasket (23) for sealing; the outer wall of the nail shell (2) is provided with a notch (24) for facilitating the formation of multiple expansion bulges, and the bottom of the brim of the nail shell (2) is provided with a protrusion (22).

2. The raised seal double drum rivet according to claim 1, characterized in that: An assembly section (12) is provided below the nail head (11), and the assembly section (12) is provided with a plurality of teeth, and the nail core (1) and the nail shell (2) are assembled together through the teeth.

3. The raised seal double drum rivet according to claim 2, characterized in that: A through stepped hole is provided at the center of the nail shell (2).

4. The raised seal double drum rivet according to claim 3, characterized in that: An avoidance groove (21) is provided on the inner side of the brim of the nail shell (2).

5. The raised seal double drum rivet according to claim 1, characterized in that: The friction wire (16) is located below the rivet gun coupling section (15).

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