Multifunctional self-puncturing connecting rivet

Abstract

The utility model discloses a multifunctional self-puncturing connecting rivet, which is characterized in that a self-puncturing connecting riveting part used for being riveted with a plate in a self-locking manner is integrally formed on one side of a flange plate, and a connecting part used for being connected with a part in a matching manner is integrally formed on the other side of the flange plate, so that the rivet can be connected with the part while being riveted and fixed with the plate; a plurality of connecting pieces do not need to be arranged on the plate, so that the damage to the plate structure and the mounting cost are reduced, and the functionality of the rivet is improved; meanwhile, the rivet and the plate are made of the same material, and the strength of the rivet is higher than that of the plate, so that physical and mechanical characteristics such as thermal expansion coefficient, elastic modulus and yield strength between the rivet and the plate are similar, stress concentration caused by material difference is reduced, and the risk of cracks is reduced; therefore, the integrity, the stability and the reliability of connection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of self-piercing rivets, and particularly relates to a multifunctional self-piercing connecting rivet capable of realizing riveting and installation. Background Art

[0002] Currently, the existing self-piercing rivet 1' is mainly composed of alloy steel. As Figure 1 shown, a riveting part 12' is only provided on one side of the flange 11'. It is mainly used for connecting multi-layer panels of the same material or different materials. When the self-piercing rivet connects multi-layer plates, the flange 11' abuts against the upper plate, the riveting part 12' pierces through the upper plate, and deforms on the lower plate to form an internal self-locking structure, which cooperates with the flange 11' to ensure the stable connection of the multi-layer plates.

[0003] However, when using the existing self-piercing rivet to connect multi-layer plates, the riveting part has different elongation rate requirements for plates of different materials. When the elongation rate requirements cannot be met, internal cracks will be formed during the riveting process, resulting in ineffective connection. At the same time, the functions of the existing self-piercing rivets are relatively single, only applicable to the connection of high mechanical strength positions, not applicable to the single-layer connection between the same materials, and can only be used for riveting plates. When other parts need to be installed on the plates, additional installation parts need to be provided on the plates, which causes damage to the plate structure and increases the number and cost of setting the installation parts.

[0004] Therefore, how to effectively improve the functionality of the self-piercing rivet, enable the self-piercing rivet to simultaneously realize riveting and installation, reduce the damage of multiple installation parts to the plate structure, and reduce the connection and installation costs of the plates has become an urgent problem to be solved in this field. Summary of the Utility Model

[0005] Aiming at the defects of the prior art, the purpose of the utility model is to provide a multifunctional self-piercing connecting rivet that can simultaneously realize riveting and installation.

[0006] To achieve the above purpose, the multifunctional self-piercing connecting rivet provided by the utility model is used to cooperate with a plate and a part to be installed on the plate. The rivet includes a flange and a self-piercing connecting riveting part integrally formed on one side of the flange.

[0007] A connecting part is integrally formed on the other side of the flange.

[0008] Furthermore, the connecting part protrudes from the other side surface of the flange.

[0009] Furthermore, the connecting part is adapted to the part and configured to be fixedly connected or detachably connected to the part.

[0010] Further, the connecting part is composed of single or multiple stepped parts.

[0011] Further, the connecting part is composed of a threaded post.

[0012] Further, a connecting groove is provided on the connecting part.

[0013] Further, the cross-section of the flange is configured to be circular or polygonal.

[0014] The multifunctional self-piercing connecting rivet provided by the present utility model integrally forms a self-piercing connecting riveting part on one side of the flange for self-locking riveting with a plate, and integrally forms a connecting part on the other side for mating connection with a part, so that while the rivet is riveted and fixed to the plate, the connection with the part can be realized, without the need to arrange multiple connecting pieces on the plate, reducing the damage to the plate structure and the installation cost, and improving the functionality of the rivet. Description of the Drawings

[0015] The present utility model will be further described below in conjunction with the drawings and specific embodiments.

[0016] Figure 1 is a schematic structural diagram of an existing self-piercing rivet;

[0017] Figure 2 is a schematic structural diagram of the connection between the multifunctional self-piercing connecting rivet provided by the present utility model and a plate;

[0018] Figure 3 and Figure 4 is a schematic structural diagram of the multifunctional self-piercing connecting rivet provided by the present utility model;

[0019] Figure 5 and Figure 6 is a schematic structural diagram of the connecting part in the present utility model;

[0020] Reference Signs:

[0021] 1. Rivet; 11. Flange; 12. Self-piercing connecting riveting part; 121. Piercing groove; 13. Connecting part; 131. Single stepped part; 132. Multiple stepped parts; 133. Threaded post;

[0022] 2. Plate; 21. Outer surface; 3. Part. Detailed Embodiments

[0023] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific illustrations.

[0024] See Figure 2 and Figure 3, which shows an example of the multi-functional self-piercing connecting rivet provided by the present utility model.

[0025] As can be seen from the figure, for the multi-functional self-piercing connecting rivet of this example, the rivet 1 is used to cooperate with the plate 2 and the part 3 to be installed on the plate 2.

[0026] The rivet 1 mainly includes a flange 11. On one side of the flange 11, a self-piercing connecting riveting portion 12 is formed, and on the other side, a connecting portion 13 is formed, so that the self-piercing connecting riveting portion 12 of the rivet 1 pierces into the interior of the plate 2 to form a self-locking structure. The flange 11 is embedded in the plate 2 and cooperates with the outer surface 21 of the plate 2, so that the connecting portion 13 is placed on the outer surface 21 of the plate 2 to cooperate with the part 3 for connection. Thus, while the rivet 1 is riveted and self-locked with the plate 2, the part 3 can be installed, without additionally arranging a mounting member on the plate 2, reducing the damage to the structure of the plate 2 and improving the functionality of the rivet 1 at the same time.

[0027] Furthermore, the rivet 1 is configured to be made of the same material as the plate 2, and the strength of the rivet 1 is higher than that of the plate 2, so as to reduce stress concentration caused by material differences, reduce the risk of crack generation, and thus improve the integrity, stability and reliability of the connection.

[0028] Specifically, the rivet 1 is made of the same material as the plate 2. Preferably, both the rivet 1 and the plate 2 are made of aluminum or copper. Since aluminum and copper have relatively large coefficients of thermal expansion, the rivet 1 and the plate 2 will have similar dimensional change rates when the temperature changes, which helps to maintain the stability of the connection, reduce stress concentration and potential fretting or fracture caused by temperature difference, and at the same time enables the rivet 1 to be used for self-locking riveting of a single-layer plate 2 to ensure the stability of the connection.

[0029] Furthermore, the strength of the rivet 1 is configured to be greater than that of the plate 2, so that the rivet 1 can bear larger loads and stresses, improving the connection stability between the rivet 1 and the plate 2. At the same time, in the case of overloading or impact of the rivet 1, the rivet 1 may undergo plastic deformation or fracture prior to the plate 2 to protect the structure of the plate 2 from being damaged.

[0030] In order to enable the rivet 1 to evenly distribute stress during the riveting process, the cross-section of the flange 11 of the rivet 1 is preferably circular, and a piercing groove 121 is formed inside the self-piercing connecting riveting portion 12. When the self-piercing connecting riveting portion 12 pierces into the interior of the plate 2, the plate 2 fills the piercing groove 121. The two sides of the self-piercing connecting riveting portion 12 are deformed and bent to form a self-locking structure with the plate 2. At the same time, the flange 11 is embedded in the plate 2 and cooperates with the outer surface 21 of the plate 2. The flange 11 can evenly disperse the load, reduce stress concentration, and thus improve the reliability and durability of the connection.

[0031] In some embodiments, the cross-section of the flange 11 can also be configured as a polygon or a special shape, so that the flanges 11 can be arranged compactly on the plate 2, enabling the rivet 1 to be applicable to the plate 2 with limited connection space. Meanwhile, the contact area between the flange 11 and the plate 2 is increased to achieve a more reliable connection.

[0032] Thereby, the rivet 1 is firmly riveted and self-locked with the plate 2. When installing the part 3 on the outer surface 21 of the plate 2, usually other mounting parts are additionally provided on the plate 2 to cooperate with the part 3 for connection, which increases the number of mounting parts provided on the plate 2, damages the structure of the plate 2, and increases the installation cost and workload. In order to quickly install the part 3 and reduce the damage to the structure of the plate 2, a connecting portion 13 is provided on the other side of the flange 11. When the self-piercing connection riveting portion 12 pierces into the plate 2 and the flange 11 is embedded in the plate 2 and cooperates with the outer surface 21 of the plate 2, the connecting portion 13 can be placed on the outer surface 21 of the plate 2 to cooperate with the part 3 for connection.

[0033] Furthermore, the connecting portion 13, the flange 11 and the self-piercing connection riveting portion 12 of the rivet 1 are of an integrated structure, so that the connecting portion 13, the flange 11 and the self-piercing connection riveting portion 12 form a structurally stable whole, thereby ensuring that the rivet 1 is not easily cracked during the riveting process and ensuring the stability of the riveting.

[0034] Specifically, the connecting portion 13 is configured to be adapted to the part 3 and can be fixedly connected or detachably connected to the part 3.

[0035] In some embodiments, the connecting portion 13 is composed of a single-step member 131, so that the part 3 can be directly sleeved on the single-step member 131 and is in interference fit with the single-step member 131, thereby fixing the part 3 by the connecting portion 13 and facilitating the disassembly of the part 3, as Figure 3 shown.

[0036] In some embodiments, the connecting portion 13 can also be composed of a multi-step member 132, so that the connecting portion 13 forms a multi-layer protruding member on the flange 11, increasing the contact area between the connecting portion 13 and the part 3, thereby improving the connection stability between the connecting portion 13 and the part 3 and providing a better fixing and positioning effect for the part 3, as Figure 5 shown.

[0037] In some embodiments, the connecting portion 13 can also be composed of a threaded post 133, so that the part 3 can be threadedly engaged with the connecting portion 13 to adjust the installation height of the part 3 and facilitate the disassembly and replacement of the part 3, as Figure 6 shown.

[0038] In some embodiments, a connecting groove is formed on the connecting portion 12, so that the part 3 can be snapped into the connecting groove and is firmly connected to the connecting portion 12 in cooperation.

[0039] Therefore, a self-piercing connection riveting portion 12 for riveting the self-locking sheet 2 is provided on one side of the flange 11, and a connection portion 13 for installing the part 3 is provided on the other side, enabling the rivet 1 to be connected to the sheet 2 and the part 3 to be installed on the sheet 2, improving the functionality of the rivet 1. At the same time, only one mounting member is provided on the sheet 2 to achieve the riveting and mounting functions, eliminating the need for other mounting members, ensuring the structural integrity and installation convenience of the sheet 2.

[0040] The multi-functional self-piercing connection rivet provided by the present invention uses a rivet 1 made of the same material as the sheet 2, reducing stress concentration caused by material differences, avoiding cracks, and improving the connection reliability between the rivet 1 and the sheet 2. At the same time, a self-piercing connection riveting portion 1 and a connection portion 13 are respectively provided on both sides of the flange 11, improving the functionality of the rivet 1, realizing the functions of riveting and installation, and ensuring the structural integrity and installation convenience of the sheet 2.

[0041] The foregoing shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and all these changes and improvements fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-functional self-piercing connecting rivet, which is used to cooperate with a plate and a part to be installed on the plate. The rivet includes a flange and a self-piercing connecting riveting portion integrally formed on one side of the flange. It is characterized in that, A connecting portion is integrally formed on the other side of the flange.

2. The multi-functional self-piercing connecting rivet according to claim 1, characterized in that The connecting portion protrudes on the surface of the other side of the flange.

3. The multi-functional self-piercing connecting rivet according to claim 2, characterized in that, The connecting portion is adapted to the part and configured to be fixedly connected or detachably connected to the part.

4. The multifunctional self-piercing connecting rivet according to claim 3, wherein The connecting portion is composed of a single or multiple stepped members.

5. The multifunctional self-piercing connecting rivet according to claim 3, characterized in that, The connecting portion is composed of a threaded post.

6. The multifunctional self-piercing connecting rivet according to claim 3, wherein A connecting groove is provided on the connecting portion.

7. The multifunctional self-piercing connecting rivet according to claim 1, wherein The cross-section of the flange is configured to be circular or polygonal.

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