Rivet and riveting assembly

Abstract

A rivet comprises a main body, a first riveting part and a second riveting part, and the main body is provided with a hole entering end; the first riveting part is convexly arranged on the peripheral wall of the main body; the second riveting part is convexly arranged on the peripheral wall of the main body; the second riveting part is adjacent to the hole inlet end compared with the first riveting part; the first riveting part has a first outer diameter, the second riveting part has a second outer diameter, and the first outer diameter is larger than the second outer diameter. The utility model further provides a riveting assembly. According to the rivet provided by the invention, a double-rivet structure can be realized with the workpiece, the riveting strength between the rivet and the workpiece is favorably improved, and the problem that the rivet shakes in a mounting hole of the workpiece is solved.

Description

Technical Field

[0001] This application relates to the field of riveting technology, and more particularly to rivets and riveting assemblies. Background Technology

[0002] Terminal devices (such as mobile phones) typically include riveting assemblies to connect at least two components. Existing riveting assemblies have poor connection strength, affecting the drop performance of terminal devices. Utility Model Content

[0003] In view of this, it is necessary to provide a rivet and riveting assembly that can improve the connection strength.

[0004] A rivet includes a body, a first riveting portion, and a second riveting portion. The body has an insertion end. The first riveting portion protrudes from the peripheral wall of the body. The second riveting portion protrudes from the peripheral wall of the body and is disposed adjacent to the insertion end relative to the first riveting portion. The first riveting portion has a first outer diameter, and the second riveting portion has a second outer diameter, wherein the first outer diameter is larger than the second outer diameter.

[0005] In one possible embodiment of this application, the second riveting portion and the first riveting portion are spaced apart, and a first receiving groove is defined between the second riveting portion and the first riveting portion.

[0006] In one possible embodiment of this application, the inlet end has a third outer diameter, and the second outer diameter is larger than the third outer diameter.

[0007] In one possible embodiment of this application, the main body is provided with a second receiving groove, which is located between the inlet end and the second riveting part.

[0008] In one possible embodiment of this application, the second riveting portion has an end wall facing the second receiving groove. The end wall is provided with a guide extrusion structure. The guide extrusion structure is disposed near the outer edge of the end wall and extends toward the side where the second receiving groove is located. The extension dimension of the guide extrusion structure along the extension direction of the main body is smaller than the width dimension of the second receiving groove along the extension direction of the main body, so that the guide extrusion structure fills into the second receiving groove after being extruded.

[0009] In one possible embodiment of this application, the second riveting portion is spirally arranged around the extension direction of the body; and / or, the outer periphery of the first riveting portion is provided with a plurality of anti-slip textures.

[0010] In one possible embodiment of this application, the first riveting portion includes a plurality of protrusions, each of the plurality of protrusions being disposed around the outer periphery of the body, and any two adjacent protrusions being spaced apart.

[0011] In one possible embodiment of this application, the first riveting portion has a first width dimension along the extension direction of the body, and the second riveting portion has a second width dimension along the extension direction of the body, wherein the second width dimension is greater than the first width dimension.

[0012] In one possible embodiment of this application, there is a difference between the first outer diameter and the second outer diameter, and the value of the difference ranges from 0.02 mm to 0.09 mm.

[0013] A riveting assembly includes a rivet and a workpiece; the workpiece has a mounting hole, the rivet is riveted into the mounting hole, and a first riveting portion and a second riveting portion are interference-fitted with the wall of the mounting hole.

[0014] The rivet provided in this application embodiment for riveting with a workpiece includes a first riveting portion and a second riveting portion. Both the first and second riveting portions are used for riveting with the rivet, realizing a double-riveting structure. The double-riveting structure helps to increase the riveting strength between the rivet and the workpiece; furthermore, the second riveting portion can also play a guiding role, which can improve the problem of the rivet shaking in the mounting hole during the riveting process, thereby further improving the connection reliability between the rivet and the workpiece. Attached Figure Description

[0015] Figure 1A A structural schematic diagram of a riveting assembly provided for related technologies.

[0016] Figure 1B for Figure 1A The diagram shows a cross-sectional view of the riveting assembly along the AA direction.

[0017] Figure 1C for Figure 1A The diagram shows a rivet in a riveting assembly swaying within the workpiece.

[0018] Figure 2A This is a schematic diagram of the riveting assembly provided in an embodiment of this application.

[0019] Figure 2B for Figure 2A The diagram shows a cross-sectional view of the riveting assembly along the BB direction.

[0020] Figure 2C for Figure 2A A schematic diagram of the rivet structure in the riveting assembly shown.

[0021] Figure 3A This is a schematic diagram of the structure of a riveting assembly provided in some other embodiments of this application.

[0022] Figure 3B for Figure 3A The diagram shows a cross-sectional view of the riveting assembly along the CC direction.

[0023] Figure 3C for Figure 3A A schematic diagram of the rivet structure in the riveting assembly shown.

[0024] Figure 4A This is a structural schematic diagram of a riveting assembly provided in some embodiments of this application.

[0025] Figure 4B for Figure 4A The diagram shows a cross-sectional view of the riveting assembly along the DD direction.

[0026] Figure 4C for Figure 4A A schematic diagram of the rivet structure in the riveting assembly shown.

[0027] Figure 5A This is a structural schematic diagram of a riveting assembly provided in some embodiments of this application.

[0028] Figure 5B for Figure 5A The diagram shows a cross-sectional view of the riveting assembly along the EE direction.

[0029] Figure 5C for Figure 5A A schematic diagram of the rivet structure in the riveting assembly shown.

[0030] Explanation of main component symbols

[0031] Riveting components 100, 100a, 100b, 100c, 100' workpiece 10、10’ Mounting holes 11、11’ sidewall 12 First side wall 121 Second side wall 122 Second thread 123c bottom wall 13 rivet 20, 20a, 20b, 20c, 20' main body 21、21’ First containment tank 211 Second containment tank 212 Manhole end 213 First riveting part 22 Second riveting part 23 Guided extrusion structure 232b First thread 234c Riveting part 24’ First outer diameter D1 Second outer diameter D2 Third outer diameter D3 Extension direction L

[0032] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this application. Detailed Implementation

[0033] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this application; the described embodiments are merely some, not all, of the embodiments described in this application.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The term "and / or" as used herein includes all and any combination of one or more of the associated listed items.

[0035] In the various embodiments of this application, for ease of description and not limitation, the term "connection" used in the patent application specification and claims is not limited to physical or mechanical connections, whether direct or indirect. Terms such as "upper," "lower," "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0036] Please see Figure 1A , Figure 1B and Figure 1C , Figure 1A A structural schematic diagram of the riveting assembly 100' provided for related technologies. Figure 1B for Figure 1A The cross-sectional schematic diagram of the riveting assembly 100' along the AA direction is shown. Figure 1C for Figure 1A A schematic diagram showing the rivet 20' in the riveting assembly 100' wobbling in the workpiece 10'.

[0037] The riveting assembly 100' includes a workpiece 10' and a rivet 20', which are riveted together. Specifically, the workpiece 10' has a mounting hole 11', and the rivet 20' includes a body 21' and a riveting portion 24'. The riveting portion 24' protrudes from the peripheral wall of the body 21', and the rivet 20' is used to insert into the mounting hole 11'. The riveting portion 24' is used to rivet with the workpiece 10'. The riveting assembly 100' formed by the rivet 20' and the workpiece 10' is a single-rivet structure. When the rivet 20' is inserted into the mounting hole 11', the rivet 20' is prone to wobbling in the mounting hole 11', which can easily lead to misalignment between the rivet 20' and the workpiece 10', reducing the connection reliability between the rivet 20' and the workpiece 10'.

[0038] Please see Figure 2A , Figure 2B and Figure 2C , Figure 2A This is a structural schematic diagram of the riveting assembly 100 provided in an embodiment of this application. Figure 2B for Figure 2A The cross-sectional schematic diagram of the riveting assembly 100 along the BB direction is shown. Figure 2C for Figure 2AA schematic diagram of the rivet 20 in the riveting assembly 100 shown.

[0039] The riveting assembly 100 may include a workpiece 10 and a rivet 20. The workpiece 10 is provided with a mounting hole 11, and the rivet 20 is riveted into the mounting hole 11. The rivet 20 and the workpiece 10 are interference-fitted to fix the rivet 20 and the workpiece 10 to each other.

[0040] The riveting assembly 100 can be applied to terminal devices such as mobile phones, tablets, laptops, cameras, drones, and monitors. For example, the workpiece 10 can be the mid-frame of a mobile phone. With the miniaturization of terminal devices, the assembly requirements for small, complex, and precision parts within these devices are becoming increasingly stringent. The riveting assembly 100 provided in this embodiment is used to connect precision parts, ensuring good connection strength when the terminal device is dropped, thus improving the drop performance of the terminal device.

[0041] The rivet 20 may include a body 21, a first riveting portion 22, and a second riveting portion 23. The body 21 is generally columnar and has an inlet end 213. When the rivet 20 is riveted into the mounting hole 11, the inlet end 213 first extends into the mounting hole 11. The first riveting portion 22 protrudes from the peripheral wall of the body 21; the second riveting portion 23 protrudes from the peripheral wall of the body 21 and is positioned adjacent to the inlet end 213 relative to the first riveting portion 22. The first riveting portion 22 has a first outer diameter D1, and the second riveting portion 23 has a second outer diameter D2, where the first outer diameter D1 is larger than the second outer diameter D2. When the rivet 20 is inserted into the mounting hole 11, the second riveting portion 23 enters the mounting hole 11 preferentially compared to the first riveting portion 22. The larger first outer diameter D1 facilitates the smooth insertion of the rivet 20 into the mounting hole 11.

[0042] The workpiece 10 has a sidewall 12 and a bottom wall 13, with the sidewall 12 surrounding the bottom wall 13. The sidewall 12 and the bottom wall 13 together form the mounting hole 11. The sidewall 12 includes a first sidewall 121 and a second sidewall 122, both of which form a portion of the mounting hole 11. The first sidewall 121 is used for riveting with the first riveting part 22, and the second sidewall 122 is used for riveting with the second riveting part 23. The first sidewall 121 has a first inner diameter, and the second sidewall 122 has a second inner diameter. The first inner diameter is greater than or equal to the first inner diameter. In this embodiment, the second inner diameter and the first inner diameter are equal.

[0043] During the riveting process between the rivet 20 and the workpiece 10, the inlet end 213 of the workpiece 10 is first inserted into one end of the mounting hole 11, and the second riveting part 23 abuts against the second side wall 122, with the second riveting part 23 serving as a guide; then, the first riveting part 22 abuts against the first side wall 121; a force is applied to the body 21 located outside the mounting hole 11 along the extending direction L of the body 21, so that the first riveting part 22 and the first side wall 121 are riveted together, and the second riveting part 23 and the second side wall 122 are riveted together, that is, the first riveting part 22 and the first side wall 121 are interference-fitted, and the second riveting part 23 and the second side wall 122 are interference-fitted.

[0044] The first riveting portion 22 and the first sidewall 121, as well as the second riveting portion 23 and the second sidewall 122, together form a double-riveting structure. This double-riveting structure increases the friction between the rivet 20 and the workpiece 10, thereby increasing the reliability of the connection between them. Furthermore, the second riveting portion 23 and the second sidewall 122 also serve as guides, mitigating the wobble of the rivet 20 in the mounting hole 11 during riveting, further enhancing the reliability of the connection between the rivet 20 and the workpiece 10.

[0045] In some embodiments, the first outer diameter D1 and the second outer diameter D2 have a difference, the value of which ranges from 0.02 mm to 0.09 mm. In some specific embodiments, the specific difference can be 0.02 mm, 0.03 mm, 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, or any value within the range formed by any two of the above values.

[0046] The difference between the first outer diameter D1 and the second outer diameter D2 is relatively small. Before the rivet 20 and the workpiece 10 are riveted, when the rivet 20 is placed in the mounting hole 11, it is convenient for the second riveting part 23 and the second side wall 122 to be pre-tightened. At the same time, the first riveting part 22 can be embedded in the first side wall 121 to achieve a double tight fit structure. After applying force to the workpiece 10, the first riveting part 22 and the second riveting part 23 can achieve a double riveting fastening effect with the workpiece 10.

[0047] The second riveting portion 23 and the first riveting portion 22 are spaced apart, and a first receiving groove 211 is defined between the second riveting portion 23 and the first riveting portion 22. When the rivet 20 is riveted into the mounting hole 11, the first receiving groove 211 is used to receive the material deformed by the first riveting portion 22 and the first side wall 121, so that the first riveting portion 22 and the first side wall 121 can be riveted smoothly; at the same time, the deformed material can connect with the side wall 12 of the workpiece 10, increasing the friction between the deformed material and the workpiece 10, improving the connection reliability of the rivet 20 and the workpiece 10, and thus improving the connection strength of the riveting assembly 100; the first receiving groove 211 can also be used to collect the debris that falls off when the first riveting portion 22 and the first side wall 121 are riveted.

[0048] The insertion end 213 has a third outer diameter D3, and the second outer diameter D2 is larger than the third outer diameter D3. This is equivalent to the first outer diameter D1, the second outer diameter D2, and the third outer diameter D3 decreasing sequentially, which facilitates the smooth insertion of the rivet 20 into the mounting hole 11. The workpiece 10 also includes a third sidewall 12, located on the side of the second sidewall 122 opposite to the first sidewall 121. When the rivet 20 is inserted into the mounting hole 11, the main body 21 and the third sidewall 12 are spaced apart. In this embodiment, the third outer diameter D3 of the insertion end 213 is 0.94 mm, the inner diameter enclosed by the third sidewall 12 of the workpiece 10 is 0.98 mm, and the distance between the insertion end 213 and the third sidewall 12 is 0.02 mm.

[0049] The main body 21 is provided with a second receiving groove 212, which is located between the inlet end 213 and the second riveting part 23. When the rivet 20 is riveted into the mounting hole 11, the second receiving groove 212 is used to receive the material formed by the compression deformation after the second riveting part 23 and the second side wall 122 are connected, so that the second riveting part 23 and the second side wall 122 can be riveted smoothly; at the same time, the deformed material can connect with the side wall 12 of the workpiece 10, increasing the friction between the deformed material and the workpiece 10, improving the connection reliability of the rivet 20 and the workpiece 10, and thus improving the connection strength of the riveting assembly 100; the second receiving groove 212 can also be used to collect the debris that falls off when the second riveting part 23 and the second side wall 122 are riveted.

[0050] Please see Figure 3A , Figure 3B and Figure 3C , Figure 3A This is a schematic diagram of the structure of the riveting assembly 100a provided in other embodiments of this application. Figure 3B for Figure 3A The cross-sectional schematic diagram of the riveting assembly 100a along the CC direction is shown. Figure 3C for Figure 3A A schematic diagram of the structure of the rivet 20a in the riveting assembly 100a shown.

[0051] One difference from the previous embodiment is that, in this embodiment, the second inner diameter is smaller than the first inner diameter. Compared to the previous embodiment, when the second riveting part 23 enters the first sidewall 121, the friction between the second riveting part 23 and the first sidewall 121 is smaller, which is more conducive to the insertion of the rivet 20a into the mounting hole 11.

[0052] Another difference from the previous embodiment is that, in this embodiment, along the extending direction L of the main body 21, the side wall 12 of the workpiece 10 is spaced apart between the main body 21 and the first receiving groove 211 and the second receiving groove 212. This effectively increases the distance between the second riveting part 23 and the first riveting part 22, further improving the wobbling problem of the rivet 20a in the mounting hole 11, and thus further enhancing the connection reliability between the rivet 20a and the workpiece 10. In this embodiment, the distance between the main body 21 and the side wall 12 of the workpiece 10 between the first receiving groove 211 and the second receiving groove 212 is 0.02 mm. It can be understood that in other embodiments, the distance between the main body 21 and the side wall 12 can also be other dimensions.

[0053] In this embodiment, the third outer diameter D3 of the inlet end 213 is 0.70 mm, the inner diameter of the third sidewall 12 of the workpiece 10 is 0.74 mm, and the distance between the inlet end 213 and the third sidewall 12 is 0.02 mm.

[0054] Please see Figure 4A , Figure 4B and Figure 4C , Figure 4A This is a structural schematic diagram of the riveting assembly 100b provided in some embodiments of this application. Figure 4B for Figure 4A The cross-sectional schematic diagram of the riveting assembly 100b along the DD direction is shown. Figure 4C for Figure 4A A schematic diagram of the structure of the rivet 20b in the riveting assembly 100b shown.

[0055] The difference from the previous embodiment is that, in this embodiment, the second riveting part 23 has an end wall facing the second receiving groove 212. The end wall is provided with a guide extrusion structure 232b. The guide extrusion structure 232b is disposed near the outer edge of the end wall and extends toward the side where the second receiving groove 212 is located. The extension dimension of the guide extrusion structure 232b along the extension direction L of the main body 21 is smaller than the width dimension of the second receiving groove 212 along the extension direction L of the main body 21, so that the guide extrusion structure 232b fills into the second receiving groove 212 after being extruded. The provision of the guide extrusion structure 232b can both serve as a guide, making it easier for the rivet 20b to be inserted into the mounting hole 11, and facilitate the deformation of the guide extrusion structure 232b toward the second receiving groove 212 along the radial direction of the rivet 20b during the riveting process between the second riveting part 23 and the second side wall 122, which helps to reduce the assembly difficulty of the rivet 20b and the workpiece 10.

[0056] In this embodiment, the end wall is provided with two guide extrusion structures 232b, which are symmetrically arranged on both sides of the main body 21. In other embodiments, the number of guide extrusion structures 232b is at least two, and multiple guide extrusion structures 232b are evenly arranged around the main body 21 to facilitate uniform force distribution.

[0057] Please see Figure 5A , Figure 5B and Figure 5C , Figure 5A This is a structural schematic diagram of the riveting assembly 100c provided in some embodiments of this application. Figure 5B for Figure 5A The cross-sectional schematic diagram of the riveting assembly 100c along the EE direction is shown. Figure 5C for Figure 5A A schematic diagram of the rivet 20c in the riveting assembly 100c shown.

[0058] and Figure 2C , Figure 3C and Figure 4CThe main difference in the illustrated embodiment is that, in this embodiment, the second riveting part 23 is spirally arranged around the extension direction L of the main body 21, that is, the surface of the second riveting part 23 has a first thread 234c, and the mounting hole 11 is correspondingly provided with a second thread 123c. The first thread 234c and the second thread 123c can mesh with each other. When the rivet 20c is riveted to the workpiece 10, the first thread 234c of the second riveting part 23 first meshes with the second thread 123c of the workpiece 10, and then a force is applied to the rivet 20c along the extension direction L of the main body 21. The first riveting part 22 is riveted to the first sidewall 121, and the second riveting part 23 is riveted to the second sidewall 122, that is, the first thread 234c and the second thread 123c are riveted, forming a staggered riveting structure along the extension direction L of the main body 21, thereby fixing the second riveting part 23 and the workpiece 10 to each other.

[0059] Along the extension direction L of the main body 21, the length of the first thread 234c is greater than the length of the second thread 123c. When the rivet 20c and the workpiece 10 are engaged, part of the first thread 234c at the inlet end 213 of the main body 21 is exposed to the second thread 123c, which helps to reduce the assembly difficulty of the rivet 20c and the workpiece 10.

[0060] In some embodiments, the outer periphery of the first riveting portion 22 is provided with a plurality of anti-slip textures (not shown in the figure). These anti-slip textures are used to increase the surface roughness of the first riveting portion 22, thereby increasing the friction between the first riveting portion 22 and the workpiece 10, and further increasing the radial stability and pull-out force of the rivet 20c and the workpiece 10. It is understood that the anti-slip textures can be applied to… Figures 2C to 5C The illustrated embodiment.

[0061] In some embodiments, the first riveting portion 22 includes a plurality of protrusions (not shown), each of which is disposed around the outer periphery of the body 21, with any two adjacent protrusions spaced apart. The plurality of protrusions are used to increase the surface roughness of the first riveting portion 22, thereby increasing the friction between the first riveting portion 22 and the workpiece 10, and further increasing the radial stability and pull-out force of the rivet 20c and the workpiece 10. In some embodiments, the protrusion length of the protrusion along the extension direction L perpendicular to the body 21 can be 0.05 mm to 0.10 mm. It is understood that the plurality of protrusions can be applied to... Figures 2C to 5C The illustrated embodiment.

[0062] In some embodiments, the first riveting portion 22 has a first width dimension along the extending direction L of the body 21, and the second riveting portion 23 has a second width dimension along the extending direction L of the body 21, wherein the second width dimension is greater than the first width dimension. Increasing the second width dimension of the second riveting portion 23 is equivalent to increasing the interaction area between the second riveting portion 23 and the workpiece 10. On the one hand, this helps to further improve the wobbling problem of the rivet 20c in the mounting hole 11, thereby further improving the connection reliability between the rivet 20c and the workpiece 10; on the other hand, it helps to further increase the friction between the rivet 20c and the workpiece 10, thereby further improving the connection reliability between the rivet 20c and the workpiece 10.

[0063] The inlet end 213 and the bottom wall 13 are spaced apart. The space between the inlet end 213 and the bottom wall 13 can provide a certain installation space for the riveting of the rivet 20c and the workpiece 10, and can also be used to collect the debris that falls off when the rivet 20c and the workpiece 10 are riveted.

[0064] The rivet 20 (or 20a, 20b, 20c) provided in this embodiment for riveting with workpiece 10 includes a first riveting portion 22 and a second riveting portion 23. Both the first riveting portion 22 and the second riveting portion 23 are used for riveting with the rivet 20 (or 20a, 20b, 20c), realizing a double-riveting structure. The double-riveting structure helps to increase the riveting strength between the rivet 20 (or 20a, 20b, 20c) and the workpiece 10; furthermore, the second riveting portion 23 can also serve as a guide, which can improve the problem of the rivet 20 (or 20a, 20b, 20c) shaking in the mounting hole 11 during the riveting process, thereby further improving the connection reliability between the rivet 20 (or 20a, 20b, 20c) and the workpiece 10.

[0065] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the scope of the technical solutions of this application.

Claims

1. A rivet, characterized in that, include: The main body has an inlet end; The first riveting part protrudes from the peripheral wall of the main body; as well as The second riveting part protrudes from the peripheral wall of the main body and is located near the end of the inlet hole compared to the first riveting part. The first riveting part has a first outer diameter, and the second riveting part has a second outer diameter, wherein the first outer diameter is larger than the second outer diameter.

2. The rivet according to claim 1, characterized in that, The second riveting portion and the first riveting portion are spaced apart, and a first receiving groove is defined between the second riveting portion and the first riveting portion.

3. The rivet according to claim 1, characterized in that, The inlet end has a third outer diameter, and the second outer diameter is larger than the third outer diameter.

4. The rivet according to claim 3, characterized in that, The main body is provided with a second receiving groove, which is located between the inlet end and the second riveting part.

5. The rivet according to claim 4, characterized in that, The second riveting part has an end wall facing the second receiving groove. The end wall is provided with a guide extrusion structure. The guide extrusion structure is disposed near the outer edge of the end wall and extends toward the side where the second receiving groove is located. The extension dimension of the guide extrusion structure along the extension direction of the main body is smaller than the width dimension of the second receiving groove along the extension direction of the main body, so that the guide extrusion structure fills into the second receiving groove after being extruded.

6. The rivet according to claim 1, characterized in that, The second riveting portion is spirally arranged around the extension direction of the main body; and / or, The outer periphery of the first riveting part is provided with multiple anti-slip textures.

7. The rivet according to claim 1, characterized in that, The first riveting part includes a plurality of protrusions, each of which is arranged around the outer periphery of the main body, and any two adjacent protrusions are spaced apart.

8. The rivet according to any one of claims 1 to 7, characterized in that, The first riveting portion has a first width dimension along the extension direction of the body, and the second riveting portion has a second width dimension along the extension direction of the body, the second width dimension being greater than the first width dimension.

9. The rivet according to any one of claims 1 to 7, characterized in that, There is a difference between the first outer diameter and the second outer diameter, and the value of the difference ranges from 0.02 mm to 0.09 mm.

10. A riveting assembly, characterized in that, include: The rivet according to any one of claims 1 to 9; as well as The workpiece is provided with mounting holes; The rivet is riveted into the mounting hole, and the first riveting part and the second riveting part are interference-fitted with the wall of the mounting hole.

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