Primary-secondary rivet structure

Abstract

The utility model relates to the technical field of fasteners, in particular to a primary and secondary nail rivet structure, which comprises a hollow primary nail and a solid secondary nail, the secondary nail comprises a connecting rod and a secondary nail cap arranged at one end of the connecting rod, and a chamfer is arranged at one end of the connecting rod far away from the secondary nail cap. The hollow female nail comprises a connecting cylinder and a female nail cap arranged at one end of the connecting cylinder, a first open hole and a second open hole which are coaxially connected are formed in the end, away from the female nail cap, of the connecting cylinder, and the connecting rod is inserted into the first open hole and the second open hole. Due to the double-guide structure, the riveting precision is improved, the problem that riveting points deviate due to inaccurate positioning is solved, the problem that a traditional rivet structure is inaccurate in positioning in automatic equipment is solved, and the riveting firmness and reliability are improved.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to a male-female rivet structure. Background Technology

[0002] In the field of industrial automation, rivets, as core connecting components, directly impact production line efficiency and product quality through their performance and application reliability. However, the current rivet embedding process faces a long-standing challenge that has plagued the industry—the problem of rivet insertion direction misalignment.

[0003] Specifically, when rivets are positioned and embedded in predetermined locations in automated equipment, they often fail to travel precisely in the intended direction, causing the rivet point to deviate. This deviation not only increases the gap between connected components, reducing overall sealing and stability, but also weakens the riveting strength, thereby affecting the overall structural strength of the product and making it difficult to meet the stringent requirements of automated riveting. Utility Model Content

[0004] The technical problem to be solved by this utility model is to solve at least one of the technical problems mentioned above.

[0005] The solution to the technical problem of this utility model is: a male-female rivet structure, which includes a hollow female rivet and a solid male rivet. The male rivet includes a connecting rod and a male rivet cap disposed at one end of the connecting rod. The end of the connecting rod away from the male rivet cap is provided with a first chamfer. The hollow female rivet includes a connecting cylinder and a female rivet cap disposed at one end of the connecting cylinder. The end of the connecting cylinder away from the female rivet cap is provided with a first opening and a second opening coaxially connected. The first opening and the second opening are used for the insertion of the connecting rod.

[0006] The beneficial effects of this utility model are as follows: This unique male-female rivet structure design enables a more robust and reliable connection. First, after the connecting rod of the solid female rivet is inserted into the connecting cylinder of the hollow female rivet, the first chamfer effectively prevents the connecting rod from shifting during insertion, thus ensuring the stability of the connection. Second, the design of the first and second openings in the connecting cylinder of the hollow female rivet allows for more precise positioning of the connecting rod, further enhancing the robustness of the connection. The dual-guide structure improves the riveting accuracy and reduces the problem of riveting point offset caused by inaccurate positioning, solving the problem of inaccurate positioning in traditional rivet structures in automated equipment, and improving the robustness and reliability of the riveting.

[0007] As a further improvement to the above technical solution, the center of the connecting rod and the center of the sub-nail head are located on the same axis.

[0008] As a further improvement to the above technical solution, the consistency of the central axis helps to improve the overall stability and load-bearing capacity. During assembly, installers can more intuitively align each component, reducing the possibility of installation errors.

[0009] As a further improvement to the above technical solution, the center of the connecting cylinder and the center of the female nail head are located on the same axis.

[0010] As a further improvement to the above technical solution, when the central axis of the connecting cylinder and the female nail head are aligned, stress concentration caused by eccentric force can be effectively reduced. When bearing external loads, the pressure can be distributed more evenly, avoiding premature local damage. In addition, due to the alignment of the central axis, the installation process becomes simpler and faster, and workers do not need to make additional adjustments during assembly, thereby improving work efficiency.

[0011] As a further improvement to the above technical solution, the diameter of the first opening is larger than the diameter of the second opening.

[0012] As a further improvement to the above technical solution, in order to ensure the accuracy and quality of the product during the design and manufacturing process, it is usually necessary to use a gauge for inspection. The diameter of the first opening is larger than that of the second opening. This difference in diameter can effectively guide the use of the gauge. When the first opening allows the gauge to pass through, and the second opening prevents the gauge from passing through, the product is considered qualified, making the inspection work more efficient and convenient.

[0013] As a further improvement to the above technical solution, the diameter of the connecting rod is larger than the diameter of the second opening, and the diameter of the connecting rod is smaller than the diameter of the first opening.

[0014] As a further improvement to the above technical solution, since the diameter of the connecting rod is larger than the diameter of the second opening, the connecting rod can exert a certain squeezing force on the edge of the second opening when inserted, thereby improving the tightness of the connection and reducing the risk of mechanical failure due to loosening. The diameter of the connecting rod is smaller than the diameter of the first opening, which means that during assembly, the connecting rod will not cause excessive stress concentration on the edge of the first opening, thus avoiding potential material fatigue or damage problems.

[0015] As a further improvement to the above technical solution, a second chamfer is provided at the connection between the connecting rod and the sub-nail head.

[0016] As a further improvement to the above technical solution, the second chamfer enhances the bonding strength between the connecting rod and the rivet head, reducing stress concentration caused by improper assembly or external forces. Furthermore, it increases the friction between the inner walls of the rivet and the mother rivet, improving the stability of the rivet after fixing and further enhancing the reliability of the connection. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of a preferred embodiment of the present invention.

[0019] In the attached diagram: 1-Hollow female nail, 2-Solid male nail, 3-Connecting rod, 4-Male nail cap, 5-First chamfer, 6-Connecting cylinder, 7-Female nail cap, 8-First opening, 9-Second opening, 10-Second chamfer, 11-Groove, 12-Protruding ring. Detailed Implementation

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments have been briefly explained above. Obviously, the described drawings are only a part of the embodiments of this utility model, not all of them. Those skilled in the art can obtain other design schemes and drawings based on these drawings without creative effort.

[0021] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / linkages mentioned herein do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. The various technical features in this utility model can be combined interactively without contradicting each other.

[0022] In the field of industrial automation, rivets, as core connecting components, directly impact production line efficiency and product quality through their performance and application reliability. However, the current rivet embedding process faces a long-standing challenge that has plagued the industry—the problem of rivet insertion direction misalignment.

[0023] Specifically, when rivets are positioned and embedded in predetermined locations in automated equipment, they often fail to travel precisely in the intended direction, causing the rivet point to deviate. This deviation not only increases the gap between connected components, reducing overall sealing and stability, but also weakens the riveting strength, thereby affecting the overall structural strength of the product and making it difficult to meet the stringent requirements of automated riveting.

[0024] Therefore, a type of mother-and-child rivet structure, referring to Figure 1 It includes a hollow female nail 1 and a solid male nail 2. The male nail includes a connecting rod 3 and a male nail cap 4 disposed at one end of the connecting rod 3. The end of the connecting rod 3 away from the male nail cap 4 is provided with a first chamfer 5. The hollow female nail 1 includes a connecting cylinder 6 and a female nail cap 7 disposed at one end of the connecting cylinder 6. The end of the connecting cylinder 6 away from the female nail cap 7 is provided with a first opening 8 and a second opening 9 coaxially connected. The first opening 8 and the second opening 9 are used for the insertion of the connecting rod 3.

[0025] This unique male-female rivet structure design enables a more robust and reliable connection. Firstly, after the connecting rod 3 of the solid female rivet 2 is inserted into the connecting sleeve 6 of the hollow female rivet 1, the first chamfer 5 effectively prevents the connecting rod 3 from shifting during insertion, thus ensuring connection stability. Secondly, the design of the first opening 8 and the second opening 9 in the connecting sleeve 6 of the hollow female rivet 1 allows for more precise positioning of the connecting rod 3, further enhancing the connection's strength. This dual-guide structure improves riveting accuracy and reduces riveting point offset caused by inaccurate positioning, solving the problem of inaccurate positioning in traditional rivet structures in automated equipment, and improving the strength and reliability of the riveting.

[0026] Improper installation or misalignment of components can lead to safety hazards. Therefore, in one embodiment, the center of the connecting rod 3 and the center of the sub-nail head 4 are located on the same axis. This alignment of the central axes helps improve overall stability and load-bearing capacity, and allows installers to more intuitively align each component during assembly, reducing the possibility of installation errors.

[0027] Improper installation or component misalignment can lead to safety hazards. Therefore, in one embodiment, the center of the connecting cylinder 6 and the center of the female nail head 7 are located on the same axis. When the central axes of the connecting cylinder 6 and the female nail head 7 are aligned, stress concentration caused by eccentric force can be effectively reduced, and pressure can be distributed more evenly when bearing external loads, avoiding premature local damage. In addition, due to the alignment of the central axes, the installation process becomes simpler and faster, and workers do not need to make additional adjustments during assembly, thereby improving work efficiency.

[0028] Traditional detection methods may require multiple steps and various tools to complete. Thus, in one embodiment, the aperture diameter of the first opening 8 is larger than that of the second opening 9. During the design and manufacturing process, in order to ensure the accuracy and quality of the product, it is usually necessary to use inspection tools for detection. The aperture size of the first opening 8 is larger than that of the second opening 9. Through this difference in aperture size, the use of inspection tools can be effectively guided. When the inspection tool can pass through the first opening 8 and is blocked by the second opening 9, the product is considered qualified, making the detection work more efficient and convenient.

[0029] In order to ensure the stability of the rivet connection. Thus, in one embodiment, the diameter of the connecting rod 3 is larger than the aperture diameter of the second opening 9, and the diameter of the connecting rod 3 is smaller than the aperture diameter of the first opening 8. Since the diameter of the connecting rod 3 is larger than the aperture diameter of the second opening 9, this enables the connecting rod 3 to produce a certain squeezing effect on the edge of the second opening 9 when inserted, thereby improving the connection tightness and reducing the risk of mechanical failures caused by loosening. The diameter of the connecting rod 3 is smaller than the aperture diameter of the first opening 8, which means that during the assembly process, the connecting rod 3 will not cause excessive stress concentration on the edge of the first opening 8, thus avoiding potential material fatigue or damage problems.

[0030] In order to improve the stability and enhance the connection reliability. Thus, in one embodiment, a second chamfer 10 is provided at the connection between the connecting rod 3 and the sub - nail head 4. The setting of the second chamfer 10 enhances the bonding strength between the connecting rod 3 and the sub - nail head 4, reducing the stress concentration phenomenon caused by improper assembly or external forces. In addition, it increases the friction force between the sub - nail and the inner wall of the mother - nail, improves the stability after the rivet is fixed, and further enhances the connection reliability.

[0031] During the installation process, dust particles may be generated, and these particles may have a certain impact on the installation quality and environment. Thus, in one embodiment, referring to Figure 2 , a groove 11 is provided at the connection between the connecting rod 3 and the sub - nail head 4. The groove 11 surrounds the connecting rod 3 in a circle, and the groove 11 is used for exhausting air and discharging chips. Specifically, the design of the groove 11 can effectively guide the dust particles and metal chips generated during the installation process to be discharged along the groove 11, thus preventing these particles and chips from accumulating at the connection part and affecting the connection tightness and stability. At the same time, the presence of the groove 11 also helps to discharge air during the installation process, reducing the pressure generated by air compression, and further improving the safety and reliability of the installation process.

[0032] The components may undergo accidental displacement or rotation. Thus, in one embodiment, referring to Figure 2A raised ring 12 is provided on the outer wall of the end of the connecting cylinder 6 away from the female nail cap 7. This enhances the guiding effect on the connecting cylinder 6, ensuring accuracy and convenience during installation, and also strengthens the stability and robustness of the entire structure to a certain extent. The raised ring 12 effectively prevents unnecessary displacement or rotation of the connecting cylinder 6 under external force, thus ensuring a tight fit and long-term reliability of the connection. Furthermore, the presence of the raised ring 12 also helps to disperse and bear some stress, further improving the overall performance of the connection structure.

[0033] The preferred embodiments of the present invention have been described in detail above, but the present invention is not limited to the embodiments described. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A type of male-female rivet structure, characterized in that, The device includes a hollow female nail (1) and a solid male nail (2). The male nail includes a connecting rod (3) and a male nail cap (4) disposed at one end of the connecting rod (3). The end of the connecting rod (3) away from the male nail cap (4) is provided with a first chamfer (5). The hollow female nail (1) includes a connecting cylinder (6) and a female nail cap (7) disposed at one end of the connecting cylinder (6). The end of the connecting cylinder (6) away from the female nail cap (7) is provided with a first opening (8) and a second opening (9) coaxially connected. The first opening (8) and the second opening (9) are used for the insertion of the connecting rod (3).

2. The rivet structure according to claim 1, characterized in that, The center of the connecting rod (3) and the center of the sub-nail (4) are located on the same axis.

3. The rivet structure according to claim 1, characterized in that, The center of the connecting cylinder (6) and the center of the female nail cap (7) are located on the same axis.

4. The rivet structure according to claim 1, characterized in that, The diameter of the first opening (8) is larger than the diameter of the second opening (9).

5. The rivet structure according to claim 1, characterized in that, The diameter of the connecting rod (3) is larger than the diameter of the second opening (9), and the diameter of the connecting rod (3) is smaller than the diameter of the first opening (8).

6. The rivet structure according to claim 1, characterized in that, The connection between the connecting rod (3) and the sub-nail cap (4) is provided with a second chamfer (10).

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