Capsule type elastic pressing rivet fastening assembly and connecting system

Abstract

The utility model provides a capsule type elastic pressing rivet fastening assembly and a connecting system. The capsule type elastic pressing rivet fastening assembly comprises a cap, a supporting frame and an elastic piece. Wherein the first end of the supporting frame is connected with the cap through the elastic piece, and the second end of the supporting frame is used for being connected with a first plate; the supporting frame can move relative to the cap in the axial direction, so that the end face, facing the first plate, of the cap abuts against or is separated from the first plate connected to the second end of the supporting frame. The capsule type elastic pressing rivet fastening assembly is simple in overall structure, small in space limitation and capable of rapidly and accurately achieving locking and unlocking of the two plates, and the locking effect of the two plates can be stably maintained.

Description

Technical Field

[0001] The utility model belongs to the technical field of fasteners, and in particular relates to a capsule-type elastic riveting fastening component and a connection system. Background Art

[0002] Fasteners, also known as standard parts in the market, are a general term for mechanical components used to fasten two or more parts (or components) together into a single unit. They come in a wide variety of types, with varying performance and applications. They are highly standardized, serialized, and universally applicable, making them the most widely used mechanical components and often found in sets. However, with the increasing pace of mechanization, fasteners are not only required to provide a secure fit but also to be user-friendly. In the assembly of computer or server products, such as power modules, PCBA boards, cooling modules, and external storage modules, precise alignment of the mating plate with the mounting plate is crucial, along with the need for quick replacement. This requires time-saving, labor-saving, and easy operation. However, in the current assembly of these products, the fasteners connecting the mounting plate and mating plate often utilize a single, integrated, head-flip riveted structure. This results in numerous components, poor bonding strength, and limited load-bearing capacity. Furthermore, their bulkiness significantly limits space requirements. In actual use, during the process of connecting the matching plate and the mounting plate, due to the low accuracy of the grooves between the matching plate and the mounting plate, locking is difficult and unstable, and the locking function cannot be completed; after locking, the overall fastener composed of various sub-components cannot provide a strong bonding force between the two plates, and the locking between the two plates is prone to failure. Utility Model Content

[0003] In view of the problems existing in the above-mentioned prior art, the main purpose of the present invention is to provide a capsule-type elastic riveting fastening assembly and a connection system. The provided capsule-type elastic riveting fastening assembly has a simple overall structure and small space restrictions. It can quickly and accurately lock and unlock two plates, and the locking effect of the two plates can be stably maintained.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] The utility model provides a capsule-type elastic pressure riveting fastening assembly, which includes a cap, a support frame and an elastic member; wherein,

[0006] The first end of the support frame is connected to the cap through the elastic member, and the second end of the support frame is used to connect to the first plate;

[0007] The support frame can move relative to the cap in the axial direction, so that the end surface of the cap facing the first plate is against / away from the first plate connected to the second end of the support frame.

[0008] As a further description of the above technical solution, a flange portion is provided at the first end of the support frame, and an end surface of the flange portion facing / away from the second end of the support frame is connected to the elastic member.

[0009] As a further description of the above technical solution, the cap is provided with a through hole along its axial direction, the wall surface for forming the through hole includes a first inner circumferential wall and a second inner circumferential wall, and the diameter of the flange portion is larger than the inner diameter of the first inner circumferential wall and smaller than the inner diameter of the second inner circumferential wall;

[0010] The first inner circumferential wall is formed at an end portion of the through-hole close to the second end of the support frame, and the second inner circumferential wall is formed at an end portion of the through-hole away from the second end of the support frame; or, the first inner circumferential wall is formed at an end portion of the through-hole away from the second end of the support frame, and the second inner circumferential wall is formed at an end portion of the through-hole close to the second end of the support frame.

[0011] As a further description of the above technical solution, the wall surface used to form the through hole also includes a first top wall connecting the first inner circumferential wall and the second inner circumferential wall, and the end of the elastic member facing away from the flange portion is connected to the first top wall.

[0012] As a further description of the above technical solution, the wall surface used to form the through hole further includes a third inner peripheral wall and a second top wall;

[0013] The third inner circumferential wall is located at an end of the first inner circumferential wall axially away from the second inner circumferential wall;

[0014] The second top wall is connected between the first inner circumferential wall and the third inner circumferential wall, and one end of the elastic member facing away from the flange portion is connected to the second top wall.

[0015] As a further description of the above technical solution, the wall surface for forming the through hole further includes a fourth inner circumferential wall, the fourth inner circumferential wall being connected to an end of the second inner circumferential wall axially away from the first inner circumferential wall, and the inner diameter of the fourth inner circumferential wall gradually decreases from the first inner circumferential wall toward the second inner circumferential wall;

[0016] At least a cross-sectional diameter of a portion of the flange portion adjacent to the second inner circumferential wall is larger than an inner diameter of a top end of the fourth inner circumferential wall away from the second inner circumferential wall.

[0017] As a further description of the above technical solution, a retaining spring is provided at the second end of the support frame, and the retaining spring is axially located between the end of the first plate and the end surface of the cap facing the first plate;

[0018] The outer diameter of the clamping spring is larger than the inner diameter of the first inner peripheral wall.

[0019] As a further description of the above technical solution, the connection method between the second end of the support frame and the first plate includes but is not limited to pressure riveting connection, flip riveting connection, welding, buckling, bonding, magnetic connection or threaded locking.

[0020] As a further description of the above technical solution, an external riveting portion is further provided on the outer wall of the cap.

[0021] The utility model also provides a connection system, comprising at least:

[0022] a first plate having a first connection point;

[0023] A second plate, wherein the second plate has a through groove extending through the second plate, wherein the extending direction of the through groove is perpendicular to the through direction thereof; and

[0024] A capsule-type elastic pressure riveting fastening assembly, comprising a cap, a support frame and an elastic member; wherein,

[0025] The first end of the support frame is connected to the cap through the elastic member, and the second end of the support frame is connected to the first connection position of the first plate; the support frame can move relative to the cap along the through direction of the slot;

[0026] The second plate is movable relative to the first plate along the extending direction of the through slot, so that the end surface of the cap facing the first plate and the plate surface of the first plate facing the cap are abutted against or separated from each other as the support frame moves back and forth in the cap along the through direction of the through slot relative to the cap;

[0027] When the end face of the cap facing the first plate is separated from the plate surface of the first plate facing the cap, the end of the groove is located between the first plate and the cap; the portion of the second plate located at the edge of the groove is respectively against the end face of the cap facing the first plate and the plate surface of the first plate facing the cap.

[0028] By means of the above technical solutions, the outstanding effects of the present invention are:

[0029] In the capsule-type elastic riveting fastening assembly provided by the present invention, the first end of the support frame is connected to the cap through an elastic member, which can move axially relative to the cap, and the second end of the support frame is used to connect the first plate. Therefore, after the first plate is connected to the second end of the support frame, a force is applied to cause the support frame to reciprocate axially relative to the cap, and the plate surface of the cap facing the first plate abuts against or separates from the first plate connected to the second end of the support frame. When the plate surface of the cap facing the first plate separates from the first plate connected to the second end of the support frame, the axially formed locking space between the two can be used for another plate or other adapting connector to be clamped therein to be locked relative to the first plate. Due to the provision of the elastic member, it is also ensured that the two end faces of the plate or other adapter connector inserted therein, which are opposite to each other in the axial direction of the support frame, respectively abut against the cap and the first plate, so as to stably maintain the locking function of the plate or other adapter connector and the first plate; when it is necessary to unlock the plate or other adapter connector and the first plate, the plate or other adapter connector can be directly pulled out from the locking space formed by the plate surface facing the first plate and the first plate, and then the first plate is reset toward the end face facing it of the cap synchronously with the elastic member, and finally abuts against the end face of the cap opposite to it, waiting for the next cycle of locking with another plate or other connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of a capsule-type elastic riveting fastening assembly in the first embodiment of the present invention;

[0031] Figure 2 This is an axial cross-sectional view of the capsule-type elastic riveting fastening assembly in the first embodiment of the present utility model;

[0032] Figure 3 This is a structural diagram of the connection between the capsule-type elastic riveting fastening assembly and the first plate in the first embodiment of the present utility model;

[0033] Figure 4 This is an axial cross-sectional view of the connection between the capsule-type elastic riveting fastening assembly and the first plate in the first embodiment of the present invention;

[0034] Figure 5 This is a structural diagram of the first plate and the second plate of the connection system in the first embodiment of the present utility model when they are in an unlocked state;

[0035] Figure 6 This is a structural diagram of the first plate and the second plate of the connection system in the first embodiment of the present utility model when they are in a locked state;

[0036] Figure 7 This is an axial cross-sectional view of the capsule-type elastic riveting fastening assembly when the first plate and the second plate (not shown in the figure) of the connection system in the first embodiment of the present invention are in a locked state;

[0037] Figure 8 This is an axial cross-sectional view of the connection between the capsule-type elastic riveting fastening assembly and the first plate in the second embodiment of the present invention;

[0038] Figure 9 This is an axial cross-sectional view of a capsule-type elastic riveting fastening assembly in the third embodiment of the present invention;

[0039] Figure 10 This is an axial cross-sectional view of a capsule-type elastic riveting fastening assembly in a fourth embodiment of the present invention;

[0040] Figure 11 This is an axial cross-sectional view of the capsule-type elastic riveting fastening assembly when the first plate and the second plate (not shown in the figure) of the connection system in the fourth embodiment of the present invention are in a locked state;

[0041] Figure 12 This is an axial cross-sectional view of a capsule-type elastic riveting fastening assembly in a fifth embodiment of the present invention;

[0042] Figure 13 This is an axial cross-sectional view of the capsule-type elastic riveting fastening assembly when the first plate and the second plate (not shown in the figure) of the connection system in the fifth embodiment of the present invention are in a locked state;

[0043] Figure 14 This is an axial cross-sectional view of a capsule-type elastic riveting fastening assembly in a sixth embodiment of the present invention;

[0044] Figure 15 This is an axial cross-sectional view of the capsule-type elastic riveting fastening assembly when the first plate and the second plate (not shown in the figure) of the connection system in the sixth embodiment of the present invention are in a locked state;

[0045] Figure 16 This is an axial cross-sectional view of the capsule-type elastic riveting fastening assembly when the first plate and the second plate (not shown in the figure) of the connection system in the seventh embodiment of the present invention are in a locked state.

[0046] Description of Figure Numbers:

[0047] 1. Cap; 2. Support frame; 3. Elastic member; 4. First plate; 5. Flange; 6. Through hole; 7. First inner wall; 8. Second inner wall; 9. First top wall; 10. Third inner wall; 11. Second top wall; 12. Fourth inner wall; 13. Circlip; 14. Riveted portion; 15. Second plate; 16. Slot. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] In the description of the present invention, it should be noted that the terms "upper", "middle", "lower", "inside", "outside", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes the implementation of the present invention based on its overall structure.

[0050] See also Figures 1 to 16 The utility model discloses a capsule-type elastic pressure riveting fastening assembly, which includes a cap 1, a support frame 2 and an elastic member 3; wherein,

[0051] The first end of the support frame 2 is connected to the cap 1 through the elastic member 3, and the second end of the support frame 2 is used to connect to the first plate 4;

[0052] The support frame 2 can move axially relative to the cap 1 , so that the end surface of the cap 1 facing the first plate 4 abuts against / separates from the first plate 4 connected to the second end of the support frame 2 .

[0053] In the above-mentioned setting method, the first end of the support frame 2 is connected to the cap 1 through the elastic member 3, and it can move axially relative to the cap 1, and its second end is used to connect the first plate 4. Therefore, after the first plate 4 is connected to the second end of the support frame 2, a force is applied to make the support frame 2 move back and forth axially relative to the cap 1, and the plate surface of the cap 1 facing the first plate 4 is abutted against or separated from the first plate 4 connected to the second end of the support frame 2. When the plate surface of the cap 1 facing the first plate 4 is separated from the first plate 4 connected to the second end of the support frame 2, the axially formed locking space between the two can be used for another plate or other matching connector to be clamped therein to be connected with the first plate 4. For locking; and due to the setting of the elastic member 3, it is also ensured that the two end faces of the plate or other adapter connector inserted therein, which are opposite to each other in the axial direction of the support frame 2, are respectively against the cap 1 and the first plate 4, so as to stably maintain the locking function of the plate or other adapter connector and the first plate 4; when the plate or other adapter connector needs to be unlocked from the first plate 4, the plate or other adapter connector can be directly pulled out from the locking space formed by the plate surface of the cap 1 facing the first plate 4 and the first plate 4, and then the first plate 4 is reset toward the end face of the cap 1 facing it synchronously with the elastic member 3, and finally against the end face of the cap 1 opposite to it, to wait for the next cycle of locking with another plate or other connector.

[0054] See also Figures 1 to 9 ,as well as Figures 12 to 16 Specifically, in the first to third embodiments, and the fifth to seventh embodiments, the first end of the support frame 2 is the upper end, and the second end thereof is the lower end, so the upper end of the support frame 2 is connected to the cap 1 through the elastic member 3, and the lower end is used to connect to the first plate 4. More specifically, the upper end of the support frame 2 is provided with a flange portion 5, the lower end surface of the flange portion 5 is connected to the upper end of the elastic member 3, and the lower end of the elastic member 3 is connected to the cap 1, so that the support frame 2 and the cap 1 are elastically connected in the vertical direction. In the fourth embodiment, as Figure 10 、 Figure 11 As shown, unlike the above embodiment, the first end of the support frame 2 is the lower end, and the second end is the upper end. Therefore, in this embodiment, the lower end of the support frame 2 is connected to the cap 1 via the elastic member 3, and the upper end is used to connect to the first plate 4. More specifically, in this embodiment, a flange portion 5 is provided at the lower end of the support frame 2, so that the lower end surface of the flange portion 5 is connected to the upper end surface of the elastic member 3, and the lower end surface of the elastic member 3 is connected to the cap 1.

[0055] See also Figure 2 、 Figure 4 ,as well as Figures 7 to 13 Specifically, in the first to fifth embodiments, the cap 1 is provided with a through hole 6 along its axial direction for the support frame 2 to be installed therein, and the wall surface for forming the through hole 6 includes a first inner circumferential wall 7 and a second inner circumferential wall 8, and the diameter of the flange portion 5 is larger than the inner diameter of the first inner circumferential wall 7 and smaller than the inner diameter of the second inner circumferential wall 8; the first inner circumferential wall 7 is formed at the end of the through hole 6 close to the lower end (i.e., the second end) of the support frame 2, and the second inner circumferential wall 8 is formed at the end of the through hole 6 away from the lower end (i.e., the second end) of the support frame 2. Further, the wall surface for forming the through hole 6 also includes a first top wall 9 connecting the first inner circumferential wall 7 and the second inner circumferential wall 8, and the lower end of the elastic member 3 is connected to the first top wall 9, thereby the support frame 2 is elastically connected to the cap 1 in the vertical direction through the lower end surface of its flange portion 5 and the first top wall 9 forming the through hole 6.

[0056] In the sixth and seventh embodiments, unlike the above embodiments, the wall surface used to form the through hole 6 also includes a third inner circumferential wall 10 and a second top wall 11; the third inner circumferential wall 10 is axially connected to the lower end of the first inner circumferential wall 7; the second top wall 11 is connected between the first inner circumferential wall 7 and the third inner circumferential wall 10, and the end of the elastic member 3 facing away from the flange portion 5 is connected to the second top wall 11, thereby achieving an elastic connection between the support frame 2 and the cap 1 in the vertical direction through the lower end surface of its flange portion 5 and the second top wall 11 forming the through hole 6. In the sixth embodiment, the inner diameter of the first inner circumferential wall 7 gradually decreases from top to bottom, which also serves to adapt to the shape of the lower side of the flange portion 5 for guidance.

[0057] See also Figure 2 、 Figure 4 、 Figure 7 、 Figure 8 ,as well as Figures 10 to 16Specifically, in the first, second, and fourth to seventh embodiments, the wall surface forming the perforation hole 6 further includes a fourth inner peripheral wall 12, which is connected to the upper end of the second inner peripheral wall 8 and has an inner diameter that gradually decreases from the first inner peripheral wall 7 toward the second inner peripheral wall 8. Furthermore, the top cross-sectional diameter of the flange portion 5 is equal to the inner diameter of the top end of the fourth inner peripheral wall 12, while the cross-sectional diameter of the lower portion is greater than the inner diameter of the top end of the fourth inner peripheral wall 12. Therefore, the support frame 2 can only move vertically to a position where its top surface is flush with the top surface of the cap 1. Thus, the first top wall 9 and the fourth inner peripheral wall 12 forming the perforation hole 6 cooperate to provide upper and lower position limits for the flange portion 5, ensuring that the support frame 2 and the elastic member 3 do not separate from the cap 1. It should be understood that in this case, the upper and lower ends of the elastic member 3 may only contact and connect with the lower end surface of the flange portion 5 and the first top wall 9, respectively. In addition, it should be understood that the fourth inner circumferential wall 12 is formed by pressing the part of the material at the top of the cap 1 inwardly. Before it is pressed and formed, its inner diameter should be slightly larger than the maximum diameter of the flange part 5, so that the elastic member 3 and the support frame 2 are placed in the through-hole 6 from top to bottom, and then the part of the material at the top of the cap 1 is pressed inwardly with the help of a pressing tool to form the fourth inner circumferential wall 12. The radial protrusion formed (that is, the material part located at the outer edge of the fourth inner circumferential wall 12) can be directly used as a stop portion to limit the upper side of the flange part 5 to prevent the support frame 2 from escaping from the upper orifice of the through-hole 6.

[0058] See also Figure 9 Unlike the above-described embodiment, in the third embodiment, the wall surface forming the through-hole 6 does not include the fourth inner circumferential wall 12. Instead, a retaining spring 13 is provided at the second end of the support frame 2. The retaining spring 13 is axially located between the end of the first plate 4 and the end face of the cap 1 facing the first plate 4. The outer diameter of the retaining spring 13 is greater than the inner diameter of the first inner circumferential wall 7. Therefore, when the upper end of the retaining spring 13 abuts against the lower end face of the cap 1, the support frame 2 moves upward to its maximum distance relative to the cap 1. This ensures that the support frame 2, cap 1, and elastic member 3 can be stably combined into a single, integrated component after assembly. It should be understood that in this case, the assembly of the support frame 2, cap 1, and elastic member 3 is still performed by placing the elastic member 3 and support frame 2 into the through-hole 6 of the cap 1, from top to bottom, and then fitting the retaining spring 13 into the pre-set mounting position at the lower end of the support frame 2.

[0059] See also Figures 1 to 7 ,as well as Figure 9Specifically, in the first and third embodiments, the lower end (second end) of the support frame 2 and the first plate 4 can be fixedly connected by riveting. Of course, in other embodiments, the second end of the support frame 2 and the first plate 4 can also be connected in other ways. For example, in the second embodiment, Figure 8 As shown, the second end of the support frame 2 is connected to the first plate 4 by riveting; in the fourth embodiment, as shown in FIG. Figures 10 and 11 As shown, the second end of the support frame 2 and the first plate 4 can be connected by welding, buckling, bonding or magnetic connection; Figures 12 to 16 As shown, in the fifth to seventh embodiments, the second end of the support frame 2 is provided with an external thread of a certain length along its axial direction, so that it can be connected to the first plate 4 in a thread-locking manner.

[0060] See also Figures 10 to 16 Specifically, in the fourth to seventh embodiments, an external rivet portion 14 is further provided on the outer wall of the cap 1 to adapt to riveting other adapters.

[0061] See also Figures 3 to 6 Specifically, this embodiment further discloses a connection system, including:

[0062] A first plate 4, wherein the first plate 4 has a first connection position;

[0063] A second plate 15, wherein the second plate 15 has a slot 16 running through the second plate 15 in a vertical direction, and the slot 16 extends from the right to the left for a certain length; and

[0064] The capsule type elastic pressure riveting fastening assembly comprises a cap 1, a support frame 2 and an elastic member 3; wherein,

[0065] The first end of the support frame 2 is connected to the cap 1 via the elastic member 3, and the second end of the support frame 2 is riveted to the first connection position of the first plate 4; the support frame 2 can move relative to the cap 1 in the left-right direction (the through-direction of the slot 16);

[0066] The second plate 15 can move relative to the first plate 4 along the extending direction of the through groove 16, so that the end surface of the cap 1 facing the first plate 4 and the plate surface of the first plate 4 facing the cap 1 are abutted against or separated from each other as the support frame 2 moves back and forth in the cap 1 along the through direction of the through groove 16 relative to the cap 1.

[0067] When the second plate 15 moves from left to right relative to the first plate 4 and forces the cap 1 to lift up toward the end face of the first plate 4 and separate from the plate face of the first plate 4 toward the cap 1, the end of the slot 16 is axially located between the first plate 4 and the cap 1; the portion of the second plate 15 located at the edge of the slot 16 respectively abuts against the end face of the cap 1 toward the first plate 4 and the plate face of the first plate 4 toward the cap 1, and finally, after the left end of the slot 16 abuts against the corresponding outer peripheral wall of the support frame 2, the first plate 4 and the second plate 15 complete the vertical limit locking, and since the support frame 2 is pulled down as a whole, more parts extend out of the cap 1, so the elastic member 3 still limited in the cap 1 will be compressed, and thus, under the action of the elastic potential energy of the elastic member 3, the second plate 15 will be continuously and stably fastened between the first plate 4 and the cap 1. And if Figure 10 as well as Figure 11 As shown, in the fourth embodiment, after the first plate 4 and the second plate 15 complete the vertical limit locking, both are located above the cap 1, and the elastic member 3 always limited in the cap 1 changes from short (natural relaxation state) to long (stretched state). Therefore, at this time, the elastic member 3 also has elastic potential energy due to being stretched, so that the second plate 15 will be continuously and stably fastened between the first plate 4 and the cap 1. Preferably, as Figures 1 to 11 As shown, the end peripheral wall of the cap 1 adjacent to the second end of the support frame 2 can be set as a slope, that is, the outer diameter of the end peripheral wall of the cap 1 adjacent to the second end of the support frame 2 gradually shrinks from the first end of the support frame 2 toward the second end, so that when the second plate 15 is pulled out and moved relative to the first plate 4 along the extension direction of the groove 16, it has a guiding function, and only the second plate 15 needs to be pushed and pulled with one hand, and there is no need to pull the cap 1 separately to make it move relative to the support frame 2 in the axial direction.

[0068] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any changes, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A capsule-type elastic riveting fastening assembly, characterized in that: It includes a cap, a support frame and an elastic member; wherein, The first end of the support frame is connected to the cap through the elastic member, and the second end of the support frame is used to connect to the first plate; The support frame can move relative to the cap along the axial direction, so that the end surface of the cap facing the first plate is against / away from the first plate connected to the second end of the support frame.

2. The capsule-type elastic riveting fastening assembly according to claim 1 is characterized in that: A flange portion is disposed at the first end of the support frame, and an end surface of the flange portion facing toward / away from the second end of the support frame is connected to the elastic member.

3. The capsule-type elastic riveting fastening assembly according to claim 2 is characterized in that: The cap is provided with a through hole along its axial direction, and the wall surface used to form the through hole includes a first inner peripheral wall and a second inner peripheral wall, and the diameter of the flange portion is larger than the inner diameter of the first inner peripheral wall and smaller than the inner diameter of the second inner peripheral wall; The first inner circumferential wall is formed at an end of the through hole close to the second end of the support frame, and the second inner circumferential wall is formed at an end of the through hole away from the second end of the support frame; or, the first inner circumferential wall is formed at an end of the through hole away from the second end of the support frame, and the second inner circumferential wall is formed at an end of the through hole close to the second end of the support frame.

4. The capsule-type elastic riveting fastening assembly according to claim 3 is characterized in that: The wall surface used to form the through hole also includes a first top wall connecting the first inner peripheral wall and the second inner peripheral wall, and one end of the elastic member facing away from the flange portion is connected to the first top wall.

5. The capsule-type elastic riveting fastening assembly according to claim 3, characterized in that: The wall surface used to form the through hole also includes a third inner peripheral wall and a second top wall; The third inner peripheral wall is located at an end of the first inner peripheral wall axially away from the second inner peripheral wall; The second top wall is connected between the first inner circumferential wall and the third inner circumferential wall, and one end of the elastic member away from the flange portion is connected to the second top wall.

6. The capsule-type elastic riveting fastening assembly according to claim 3, characterized in that: The wall surface for forming the through hole further includes a fourth inner peripheral wall, the fourth inner peripheral wall is connected to an end of the second inner peripheral wall axially away from the first inner peripheral wall, and the inner diameter of the fourth inner peripheral wall gradually decreases from the first inner peripheral wall toward the second inner peripheral wall; At least a cross-sectional diameter of a portion of the flange portion adjacent to the second inner peripheral wall is larger than an inner diameter of a top end of the fourth inner peripheral wall away from the second inner peripheral wall.

7. The capsule-type elastic riveting fastening assembly according to claim 3 is characterized in that: The second end of the support frame is provided with a clamping spring, and the clamping spring is axially located between the end of the first plate and the end surface of the cap facing the first plate; The outer diameter of the clamping spring is greater than the inner diameter of the first inner peripheral wall.

8. The capsule-type elastic riveting fastening assembly according to claim 1, characterized in that: The connection method between the second end of the support frame and the first plate includes but is not limited to pressure riveting connection, flip riveting connection, welding, buckling, bonding, magnetic connection or thread locking.

9. The capsule-type elastic riveting fastening assembly according to claim 1, characterized in that: An external riveting portion is also provided on the outer wall of the cap.

10. A connection system, characterized in that: At least: A first plate having a first connection position; A second plate, wherein the second plate has a through groove penetrating the second plate, and the extending direction of the through groove is spatially perpendicular to the penetrating direction thereof; as well as, A capsule-type elastic pressure riveting fastening assembly, the capsule-type elastic pressure riveting fastening assembly comprises a cap, a support frame and an elastic member; wherein, The first end of the support frame is connected to the cap through the elastic member, and the second end of the support frame is connected to the first connecting position of the first plate; the support frame can move relative to the cap along the through direction of the slot; The second plate can move relative to the first plate along the extending direction of the through slot, so that the end surface of the cap facing the first plate and the plate surface of the first plate facing the cap are abutted against / separated from each other as the support frame moves back and forth in the cap along the through direction of the through slot relative to the cap; When the end face of the cap facing the first plate is separated from the plate surface of the first plate facing the cap, the end of the slot is located between the first plate and the cap; the portion of the second plate located at the edge of the slot is respectively against the end face of the cap facing the first plate and the plate surface of the first plate facing the cap.

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