Pull rivet and riveting structure
By setting guide grooves and guiding protrusions on the rivet head of the rivet pulling rivet, the problems of unsmooth pulling in the rivet body and easy to fall off the rivet core are solved, a more stable riveting structure is achieved, and the reliability of riveting is enhanced.
Patent Information
- Application Number
- CN202421172505.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-23
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-23
AI Technical Summary
The existing pulling rivets are not pulled smoothly in the rivet body and the rivet core is easy to fall off, resulting in poor stability of the riveting structure during use.
A pull rivet including a rivet body and a rivet core is designed. A guide groove is provided with an inner hole of the rivet body, and a guide protrusion is provided with an outer periphery of the rivet core head. Through the cooperation of the guide protrusion and the guide groove, the smooth movement of the core head in the rivet body is achieved. The riveting force is enhanced by extrusion of the riveting body projection and the hole wall.
The smoothness of the core head pulling in the rivet body is improved, and the possibility of the rivet core being removed is reduced through the coordination of the guide groove and the rivet body protrusion, and the stability and reliability of the rivet structure are enhanced.
Smart Images
Figure CN222351114U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of riveting, in particular to a pull rivet and a riveting structure. Background Art
[0002] A rivet provided by the related art includes a rivet body and a rivet core, wherein the rivet body has an inner hole, the rivet body includes a connecting section and a rivet head, and the rivet core includes a core rod and a core head, wherein the outer diameter of the core head is greater than the inner diameter of the connecting section. During riveting, the core rod is inserted into the inner hole of the rivet body, and then the rivet is installed into the rivet hole on the riveting part. The riveter stretches the end of the core rod away from the core head and squeezes it with the rivet head at the same time. Under the tensile force of the riveter, the rivet core is squeezed with the end of the connecting section away from the rivet head to lock the riveting part with the rivet head, and the connecting section is deformed and expanded to squeeze the hole wall of the riveting part. At the same time, the riveter squeezes the rivet head, so that the core rod breaks, and the riveting is completed.
[0003] However, when the pull rivet is pulled to move the core head in the inner hole of the rivet body, the rivet body deforms and expands and squeezes the hole wall of the rivet locking part, and the rivet body is subjected to complex forces, which makes the rivet core that cooperates with the rivet body subjected to complex forces, resulting in the core head being pulled unsmoothly in the rivet body. Moreover, after the above riveted structure has been used for a period of time, affected by other conditions such as temperature, the stress caused by deformation on the riveted structure gradually decreases, and the force between the core head and the rivet body decreases, causing the rivet core to easily fall out of the rivet body. Utility Model Content
[0004] The technical problem to be solved by the utility model is: in view of the problems of the pull rivet in the related art that the core head cannot be pulled smoothly in the rivet body and the rivet core is easy to fall out of the rivet body, a pull rivet and a riveting structure are provided.
[0005] In order to solve the above technical problems, on the one hand, the embodiment of the utility model provides a rivet, comprising a rivet body and a rivet core, wherein the rivet body has an inner hole, the rivet core comprises a core rod and a core head connected to one end of the core rod, and the width of the core head at the widest part is greater than the diameter of the inner hole of the rivet body;
[0006] A guide protrusion protruding radially outward is provided on the outer peripheral surface of the core head, and a guide groove extending along the axial direction is provided on the side wall of the rivet body, and one axial end of the guide groove passes through the rivet body to form an insertion port;
[0007] The core rod is suitable for being inserted into the inner hole of the rivet body, the core head can be squeezed into the rivet body when the core rod is pulled, and the guide protrusion is suitable for being inserted into the guide groove through the insertion port and abutting against the bottom wall of the guide groove.
[0008] Optionally, the guide protrusion is at least arranged at an end of the core head close to the core rod.
[0009] Optionally, the guide protrusion is in the shape of a long strip extending along the length direction of the core head.
[0010] Optionally, the guide protrusion has two guide surfaces that are relatively distributed along the circumference of the core head, the guide surfaces are perpendicular to the outer wall of the core head, and the guide surfaces are suitable for guiding and cooperating with the side walls of the guide groove.
[0011] Optionally, a plurality of guide grooves are provided, and the plurality of guide grooves are distributed at intervals along the circumference of the rivet body;
[0012] A plurality of guide protrusions are provided, and the plurality of guide protrusions are distributed at intervals along the circumference of the core head, and the guide protrusions correspond to the guide grooves one by one.
[0013] Optionally, a plurality of rivet body protrusions protruding radially outward are arranged on the outer peripheral surface of the rivet body, and the cross-sectional areas of the rivet body protrusions gradually decrease along the protruding direction thereof.
[0014] Optionally, the longitudinal cross-section of the rivet body protrusion is a trapezoid, and the oblique waist of the trapezoid close to the insertion opening is inclined along the protruding direction of the rivet body protrusion toward a side away from the insertion opening.
[0015] Optionally, the plurality of rivet body protrusions are distributed in multiple rows and columns, the plurality of rivet body protrusions in each row are distributed at intervals along the circumferential direction of the rivet body, and the plurality of rivet body protrusions in each column are distributed at intervals along the axial direction of the rivet body.
[0016] Optionally, in the axial direction of the rivet body, the position of the rivet body protrusion farthest from the insertion port is a first position, and the bottom wall of the guide groove is arranged close to the first position.
[0017] Optionally, a first guiding bevel is provided on the hole wall at the hole opening of the rivet body, a non-zero angle is formed between the first guiding bevel and the axis of the rivet body, and the first guiding bevel is used to guide the core head into the inner hole of the rivet body.
[0018] Optionally, a second guiding bevel suitable for cooperating with the first guiding bevel is provided at one end of the core head close to the core rod, and a non-zero angle is formed between the second guiding bevel and the axis of the core rod.
[0019] When using the pull rivet of the utility model, the core rod is inserted into the inner hole of the rivet body, and the core rod is pulled to pull the core head into the rivet body. During the movement of the core head, the guide protrusion inserted into the guide groove through the insertion port moves in the guide groove until it abuts against the bottom wall of the guide groove, so as to guide the core head by the guide cooperation between the guide protrusion and the guide groove, so that the core head moves along the extension direction of the guide groove during the riveting process, so that the core head can be pulled more smoothly in the rivet body. Moreover, since the guide protrusion abuts against the bottom wall of the guide groove, the bottom wall of the guide groove can stop the core head from moving toward one end of the rivet body, reducing the possibility of the rivet core coming out of the rivet body.
[0020] On the other hand, an embodiment of the utility model provides a riveting structure, including a first part, a second part and the above-mentioned rivet, the first part is provided with a first rivet hole, the second part is provided with a second rivet hole connected to the first rivet hole, and the rivet is riveted in the first rivet hole and the second rivet hole. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 It is a structural schematic diagram of a rivet structure provided by an embodiment of the utility model;
[0022] Figure 2 yes Figure 1 The structural diagram of the rivet in FIG.
[0023] Figure 3 yes Figure 2 A schematic diagram of the structure of the rivet core;
[0024] Figure 4 yes Figure 3 A schematic cross-sectional view of the core head;
[0025] Figure 5 yes Figure 2 Schematic diagram of the structure of the rivet body.
[0026] The reference numerals in the specification are as follows:
[0027] 1. Rivet core; 11. Core head; 12. Core rod; 13. Guide protrusion; 14. Second guide slope; 15. Guide surface; 2. Rivet body; 21. Connecting section; 22. Rivet head; 23. Rivet body protrusion; 24. Guide groove; 25. First guide slope; 26. Insertion port; 27. Inner hole; 28. Bottom wall; 3. First part; 31. First riveting hole; 4. Second part; 41. Second riveting hole. DETAILED DESCRIPTION
[0028] In order to make the technical problems, technical solutions and beneficial effects solved by the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0029] As shown in Figure 1, an embodiment of the utility model provides a riveting structure, which includes a first part 3, a second part 4 and a rivet. The first part 3 is provided with a first rivet hole 31, and the second part 4 is provided with a second rivet hole 41 connected to the first rivet hole 31. The rivet is riveted in the first rivet hole 31 and the second rivet hole 41.
[0030] like Figures 2 to 5 As shown, the rivet comprises a rivet body 2 and a rivet core 1, wherein the rivet body 2 has an inner hole 27, and the rivet core 1 comprises a core rod 12 and a core head 11 connected to one end of the core rod 12, wherein the width of the core head 11 at its widest point is greater than the diameter of the inner hole 27 of the connecting section 21. The width of the core head 11 refers to the radial width of the core head 11.
[0031] A guide protrusion 13 protruding radially outward is provided on the outer peripheral surface of the core head 11 , and a guide groove 24 extending along the axial direction is provided on the side wall of the rivet body 2 , and one axial end of the guide groove 24 passes through the rivet body 2 to form an insertion port 26 .
[0032] The core rod 12 is suitable for being installed in the inner hole 27 of the rivet body 2 , the core head 11 can be squeezed into the rivet body 2 when the core rod 12 is pulled, and the guide protrusion 13 is suitable for being inserted into the guide groove 24 through the insertion opening 26 and abutting against the bottom wall 28 of the guide groove 24 .
[0033] When the rivet is used to rivet the first part 3 and the second part 4, as shown in FIG. 1, the core rod 12 is first inserted into the inner hole 27 of the rivet body 2, and the end of the core rod 12 away from the core head 11 passes through the rivet body 2. Then the rivet is installed in the first rivet hole 31 and the second rivet hole 41, and the end of the core rod 12 away from the core head 11 passes through the second rivet hole 41. The riveter pulls the end of the core rod 12 away from the core head 11 and squeezes the second part 4 at the same time to pull the core head 11 into the rivet body 2. The guide protrusion 13 on the core head 11 is inserted into the guide groove 24 through the insertion port 26. The core head 11 entering the rivet body 2 squeezes the rivet body 2, and the rivet body 2 expands radially outward and squeezes the hole wall. The core head 11 is continuously pulled, and the guide protrusion 13 guiding the movement in the guide groove 24 guides the core head 11, so that the core head 11 moves along the extension direction of the guide groove 24 until the guide protrusion 13 abuts against the bottom wall 28 of the guide groove 24. Finally, the riveter squeezes the second part 4, so that the core rod 12 breaks, and the riveting is completed. It should be noted that Figure 1 It is a schematic diagram of the structure before the core rod 12 breaks.
[0034] When the core rod 12 is pulled until the guide protrusion 13 abuts against the bottom wall 28 of the guide groove 24, the core head 11 is pulled into place, and the guide protrusion 13 also plays the role of end limit. At the same time, after the above-mentioned riveting structure is used for a period of time, affected by other conditions such as temperature, the stress caused by deformation on the riveting structure gradually decreases, and the force between the core head 11 and the rivet body 2 decreases. The core head 11 has a tendency to escape from the rivet body 1. Since the guide protrusion 13 abuts against the bottom wall 28 of the guide groove 24, the bottom wall 28 of the guide groove 24 can stop the core head 11 from moving toward one end of the rivet body 2, reducing the possibility of the rivet core 1 escaping from the rivet body 2.
[0035] In the riveting structure of the utility model, the core rod 12 is inserted into the inner hole 27 of the rivet body 2, and the core rod 12 is pulled to pull the core head 11 into the rivet body 2. During the movement of the core head 11, the guide protrusion 13 inserted into the guide groove 24 through the insertion port 26 moves in the guide groove 24 until it abuts against the bottom wall 28 of the guide groove 24, so that the core head 11 is guided by the guide cooperation between the guide protrusion 13 and the guide groove 24, so that the core head 11 moves along the extension direction of the guide groove 24 during the riveting process, so that the core head 11 is pulled more smoothly in the rivet body 2. Moreover, since the guide protrusion 13 abuts against the bottom wall 28 of the guide groove 24, the bottom wall 28 of the guide groove 24 can stop the core head 11 from moving toward one end of the rivet body 2, thereby reducing the possibility of the rivet core 1 coming out of the rivet body 2.
[0036] In one embodiment, if Figure 3 As shown, the guide protrusion 13 is at least arranged at the end of the core head 11 close to the core rod 12, so that the guide protrusion 13 can be synchronously inserted into the guide groove 24 when the core head 11 just enters the inner hole 27 of the rivet body 2, so that the guide protrusion 13 can guide the core head 11 during the whole process of the core head 11 moving in the rivet body 2, which is conducive to smoother whole pulling process of the core head 11 in the rivet body 2.
[0037] In one embodiment, the guide protrusion 13 is in the shape of a long strip extending along the length direction of the core head 11. The long strip guide protrusion 13 has a higher structural strength and can increase the contact area between the guide protrusion 13 and the guide groove 24, thereby improving the stability of the guide matching between the guide protrusion 13 and the guide groove 24.
[0038] In one embodiment, the guide protrusion 13 is disposed along the entire length of the core head 11 , and the guide protrusion 13 extends from one end surface of the core head 11 to the other end surface of the core head 11 .
[0039] In one embodiment, if Figure 4As shown, the guide protrusion 13 has two guide surfaces 15 that are relatively distributed along the circumference of the core head 11, and the guide surfaces 15 are perpendicular to the outer wall of the core head 11. The guide surfaces 15 are suitable for guiding and cooperating with the side walls of the guide groove 24. The contact between the guide surface 15 and the side wall of the guide groove 24 is surface contact, so as to further increase the contact surface area and further improve the stability during guiding.
[0040] In one embodiment, if Figure 5 As shown, a plurality of guide grooves 24 are provided, and the plurality of guide grooves 24 are spaced apart along the circumference of the rivet body 2, a plurality of guide protrusions 13 are provided, and the plurality of guide protrusions 13 are spaced apart along the circumference of the core head 11, and the guide protrusions 13 correspond one to one with the guide grooves 24. Compared with only one guide groove 24, the guide surface 15 when using a plurality of guide grooves 24 and a plurality of guide protrusions 13 for guiding is larger in area and more stable.
[0041] Moreover, the plurality of guide grooves 24 can divide the rivet body 2 into a plurality of arc-shaped segments connected at the root in the circumferential direction, so that the rivet body 2 is easier to expand and deform, thereby facilitating the core head 11 to enter the rivet body 2. The guide grooves 24 can also absorb the expansion stress of the rivet body 2 when the rivet body 2 expands radially outward, thereby preventing the rivet body 2 from cracking.
[0042] In one embodiment, three guide grooves 24 are provided, and the three guide grooves 24 are evenly spaced along the circumference of the rivet body 2 . Accordingly, three guide protrusions 13 are provided, and the three guide protrusions 13 are evenly spaced along the circumference of the core head 11 . The guide protrusions 13 can move in the corresponding guide grooves 24 .
[0043] In one embodiment, if Figure 1 and Figure 5 As shown, a plurality of rivet protrusions 23 protruding radially outward are provided on the outer peripheral surface of the rivet body 2, and the cross-sectional area of the rivet protrusions 23 gradually decreases along the protruding direction. When the core head 11 is squeezed into the rivet body 2, the rivet body 2 is deformed and expanded outward, so that the rivet protrusions 23 on the rivet body 2 are pressed into the hole walls of the first rivet hole 31 and the second rivet hole 41, so as to increase the riveting force between the rivet body 2 and the hole walls.
[0044] Since when the installed part is a through hole, the through hole can use a rivet with deformed rivet heads at both ends. The riveting force between the rivet with deformed rivet heads at both ends and the hole wall is large enough. Therefore, the blind hole is more suitable for the rivet of the utility model. The rivet body protrusion 23 pressed into the hole wall can increase the riveting force between the rivet body 2 and the first part 3 and the second part 4, reduce the possibility of the rivet falling out of the installed part, and improve the reliability of riveting.
[0045] Moreover, since the cross-sectional area of the rivet body protrusion 23 gradually decreases along its protruding direction, the head of the rivet body protrusion 23 is small and the root is large, so as to increase the pressure of the head of the rivet body protrusion 23, which is conducive to the rivet body protrusion 23 being pressed into the hole wall of the first rivet hole 31 and the hole wall of the second rivet hole 41.
[0046] In one embodiment, the longitudinal cross-section of the rivet body protrusion 23 is a trapezoid, and the oblique waist of the trapezoid close to the insertion port 26 is inclined along the protruding direction of the rivet body protrusion 23 toward the side away from the insertion port 26, which is beneficial for the rivet body protrusion 23 to be pressed into the hole wall of the first rivet hole 31 and the hole wall of the second rivet hole 41 when the rivet core 1 is pulled.
[0047] In one embodiment, the longitudinal cross-section of the rivet body protrusion 23 is a right-angled trapezoid, and the straight waist of the right-angled trapezoid away from the insertion opening 26 is perpendicular to the outer wall of the rivet body 2 .
[0048] In one embodiment, the plurality of rivet body protrusions 23 are distributed in multiple rows and columns, the plurality of rivet body protrusions 23 in each row are distributed at intervals along the circumference of the connecting section 21, and the plurality of rivet body protrusions 23 in each column are distributed at intervals along the axial direction of the connecting section 21, so that the rivet body protrusions 23 are distributed more evenly on the outer peripheral surface of the rivet body 2, so that the riveting force between the rivet body protrusions 23 and the hole wall of the mounted part is distributed more evenly, and the appearance of the rivet body 2 is more beautiful.
[0049] In one embodiment, a plurality of guide grooves 24 are provided, and the rivet body protrusions 23 are distributed on both sides of the guide groove 24 in the circumferential direction.
[0050] In one embodiment, in the axial direction of the rivet body 2, the position of the rivet body protrusion 23 farthest from the insertion opening 26 is the first position, and the bottom wall 28 of the guide groove 24 is arranged close to the first position. When the guide protrusion 13 abuts against the bottom wall 28 of the guide groove 24, the core head 11 moves to the end point in the rivet body 2. At this time, the core head 11 is located near the first position, and the part of the rivet body 2 at the first position close to the insertion opening 26 is deformed and expanded outward, so that the rivet body protrusion 23 on the rivet body 2 is almost completely pressed into the hole wall of the first rivet hole 31 and the second rivet hole 41, so as to reasonably arrange the position of the rivet body protrusion 23, so that as many rivet body protrusions 23 as possible are pressed into the hole wall, thereby improving the utilization rate of the rivet body protrusion 23.
[0051] In one embodiment, if Figure 5 As shown, a first guiding bevel 25 is provided on the hole wall at the hole opening of the rivet body 2. The first guiding bevel 25 and the axis of the rivet body 2 have a non-zero angle. The first guiding bevel 25 is used to guide the core head 11 into the rivet body 2 so that the core head 11 enters the rivet body 2 more smoothly.
[0052] In one embodiment, if Figure 3As shown, a second guiding bevel 14 is provided at one end of the core head 11 close to the core rod 12, and a non-zero angle is formed between the second guiding bevel 14 and the axis of the core rod 12. When the core head 11 enters the rivet body 2, the first guiding bevel 25 cooperates with the second guiding bevel 14, so that the core head 11 enters the rivet body 2 more smoothly.
[0053] In one embodiment, the rivet body 2 includes a connecting section 21 and a rivet head 22 connected to one end of the connecting section 21. The connecting section 21 and the rivet head 22 are both cylindrical, the outer diameter of the connecting section 21 is smaller than the outer diameter of the rivet head 22, and the guide groove 24 is provided on the connecting section 21. When the rivet is used, the core rod 12 is inserted into the rivet body 2, and the end of the core rod 12 away from the core head 11 extends from the rivet head 22. The riveter stretches the end of the core rod 12 extending from the rivet head 22 and squeezes the end of the core rod 12 with the rivet head 22 at the same time, so that the connecting section 21 and the rivet head 22 riveted in the first rivet hole 31 and the second rivet hole 41 jointly lock the first part 3 and the second part 4.
[0054] In other embodiments, the guide protrusion 13 may be disposed at the end of the core head 11 away from the core rod 12 , or at a middle position of the core head 11 along the length direction thereof.
[0055] In other embodiments, the guide protrusion 13 may be a bump protruding toward the radial outer side of the core head 11 .
[0056] In other embodiments, the guide protrusion 13 may be in a hemispherical shape, a pyramidal shape, a terrace shape, or other irregular shapes, and the cross-sectional shape of the guide groove 24 is the same as the cross-sectional shape of the guide protrusion 13 .
[0057] In other embodiments, the number of guide slots 24 can be adjusted according to needs, such as one, two, four or more.
[0058] In other embodiments, the rivet body protrusion 23 may be in a pyramidal shape, a hemispherical shape, or other irregular structures.
[0059] In other embodiments, the plurality of rivet body protrusions 23 may be distributed in multiple rows, the plurality of rows of rivet body protrusions 23 are distributed at intervals along the axial direction of the connecting section 21, the plurality of rivet body protrusions 23 in each row are distributed at intervals along the circumferential direction of the connecting section 21, and the plurality of rivet body protrusions 23 in two adjacent rows are distributed in staggered positions. Of course, the plurality of rivet body protrusions 23 may also be distributed irregularly.
[0060] In addition, an embodiment of the present invention provides a rivet, the structure of which is the same as the structure of the rivet in any of the above embodiments, and will not be repeated here.
[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A rivet, characterized in that: The rivet comprises a rivet body (2) and a rivet core (1), wherein the rivet body (2) has an inner hole (27), and the rivet core (1) comprises a core rod (12) and a core head (11) connected to one end of the core rod (12), wherein the width of the core head (11) at its widest point is greater than the diameter of the inner hole (27) of the rivet body (2); A guide protrusion (13) protruding radially outward is provided on the outer peripheral surface of the core head (11); a guide groove (24) extending along the axial direction is provided on the side wall of the rivet body (2); one axial end of the guide groove (24) passes through the rivet body (2) to form an insertion port (26); The core rod (12) is suitable for being inserted into the inner hole (27) of the rivet body (2); the core head (11) can be squeezed into the rivet body (2) when the core rod (12) is pulled; and the guide protrusion (13) is suitable for being inserted into the guide groove (24) through the insertion port (26) and abutting against the bottom wall (28) of the guide groove (24).
2. The pull rivet according to claim 1, characterized in that: The guide protrusion (13) is at least arranged at the end of the core head (11) close to the core rod (12).
3. The pull rivet according to claim 2, characterized in that: The guide protrusion (13) is in the shape of a long strip extending along the length direction of the core head (11).
4. The pull rivet according to claim 1, characterized in that: The guide protrusion (13) has two guide surfaces (15) that are relatively distributed along the circumference of the core head (11), the guide surfaces (15) are perpendicular to the outer wall of the core head (11), and the guide surfaces (15) are suitable for guiding and cooperating with the side walls of the guide groove (24).
5. The pull rivet according to claim 1, characterized in that: A plurality of the guide grooves (24) are provided, and the plurality of the guide grooves (24) are distributed at intervals along the circumference of the rivet body (2); A plurality of the guide protrusions (13) are provided, and the plurality of guide protrusions (13) are distributed at intervals along the circumference of the core head (11), and the guide protrusions (13) correspond one to one with the guide grooves (24).
6. The pull rivet according to any one of claims 1 to 5, characterized in that: A plurality of rivet body protrusions (23) are provided on the outer peripheral surface of the rivet body (2) and protrude radially outward, and the cross-sectional area of the rivet body protrusions (23) gradually decreases along the protruding direction thereof.
7. The pull rivet according to claim 6, characterized in that: The longitudinal cross-section of the rivet body protrusion (23) is a trapezoid, and the oblique waist of the trapezoid close to the insertion opening (26) is inclined along the protruding direction of the rivet body protrusion (23) toward a side away from the insertion opening (26).
8. The pull rivet according to claim 7, characterized in that: The plurality of rivet body protrusions (23) are distributed in a plurality of rows and columns, the plurality of rivet body protrusions (23) in each row are distributed at intervals along the circumference of the rivet body (2), and the plurality of rivet body protrusions (23) in each column are distributed at intervals along the axial direction of the rivet body (2).
9. The pull rivet according to claim 8, characterized in that: In the axial direction of the rivet body (2), the position of the rivet body protrusion (23) farthest from the insertion opening (26) is a first position, and the bottom wall (28) of the guide groove (24) is arranged close to the first position.
10. The pull rivet according to any one of claims 1 to 5, characterized in that: A first guiding bevel (25) is provided on the hole wall at the hole opening of the rivet body (2), and a non-zero angle is formed between the first guiding bevel (25) and the axis of the rivet body (2). The first guiding bevel (25) is used to guide the core head (11) to enter the inner hole (27) of the rivet body (2).
11. The pull rivet according to claim 10, characterized in that: A second guiding bevel (14) adapted to cooperate with the first guiding bevel (25) is provided at one end of the core head (11) close to the core rod (12); a non-zero angle is formed between the second guiding bevel (14) and the axis of the core rod (12).
12. A riveted structure, characterized in that: The invention comprises a first part (3), a second part (4) and a pull rivet according to any one of claims 1 to 11, wherein the first part (3) is provided with a first rivet hole (31), the second part (4) is provided with a second rivet hole (41) connected to the first rivet hole (31), and the pull rivet is riveted in the first rivet hole (31) and the second rivet hole (41).