Hollow rivet for clothing

Abstract

The utility model relates to rivet technical field discloses a hollow rivet for clothing, including first riveting piece and second riveting piece, be provided with self -locking mechanism between first riveting piece and second riveting piece for realizing the locking connection of both in axial, the tail of second riveting piece is provided with self -adaptation deformation mechanism for adapting base material and enhancing the connection stability in the riveting process, the self -locking mechanism includes the connecting axle portion setting on first riveting piece, and at least a portion of connecting axle portion is conical section, second riveting piece has sleeve portion, in the utility model, the conical section on connecting axle portion forms the sliding fit with the conical guide cavity in second riveting piece, and when inserting, the radial extrusion is added to elastic clamping portion, and the axial opening on conical section provides the contraction space for elastic convex ring, makes elastic clamping portion restore automatically and be clamped into the clamping groove after, forms the axial limit.

Description

Technical Field

[0001] This utility model relates to the field of rivet technology, and in particular to a hollow rivet for clothing. Background Technology

[0002] A hollow rivet is a fastener that permanently connects two or more components through mechanical deformation. Its working mechanism involves using externally applied pressure to plastically deform the tail end of the rivet, forming a joint that clamps and secures the connected parts. In the garment manufacturing industry, hollow rivets are widely used for decorative and functional connections in products such as jeans, leather goods, bags, and shoes. They are used to secure components such as pockets, belt loops, and decorative pieces, serving both a connecting function and an aesthetic purpose, making them an indispensable basic fastener in modern garment processing.

[0003] However, in the existing technology, some hollow rivets for clothing are fixed by simple pressing or stamping, which lacks an effective axial locking mechanism. When the clothing is subjected to repeated pulling, bending and other external forces during use, the two parts of the rivet are prone to axial loosening or even separation, resulting in connection failure and affecting the normal use and appearance of the clothing. Therefore, a hollow rivet for clothing is proposed to solve the above problems. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a hollow rivet for clothing, aiming to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A hollow rivet for clothing includes a first rivet and a second rivet. A self-locking mechanism is provided between the first rivet and the second rivet to achieve a locking connection between the two in the axial direction. An adaptive deformation mechanism is provided at the tail of the second rivet to adapt to the substrate and enhance the connection stability during the riveting process. The self-locking mechanism includes a connecting shaft portion disposed on the first riveting member, at least a portion of which is a tapered section; the second riveting member has a sleeve portion, the inner wall of which is provided with a tapered guide cavity that slides with the tapered section; the connecting shaft portion is also provided with at least one elastic snap-fit ​​portion, and the inner wall of the sleeve portion is provided with a corresponding snap-fit ​​groove. As a further description of the above technical solution: When the connecting shaft is inserted into the sleeve, the elastic snap-fit ​​part is compressed as it passes through the tapered guide cavity, and engages with the snap-fit ​​groove after passing through, thereby restricting the axial separation of the first and second rivets. As a further description of the above technical solution: The elastic snap-fit ​​part includes a plurality of elastic protruding rings disposed at the bottom of the tapered section, and the snap-fit ​​groove is an annular snap-fit ​​groove corresponding to the elastic protruding rings; As a further description of the above technical solution: The tapered section has multiple openings along its axial direction, which are used to compress the elastic convex ring and retract it into the openings when the tapered section is inserted into the tapered guide cavity. As a further description of the above technical solution: The bottom side of the first riveting member abuts against the top side of the second riveting member, and the outer wall of the connecting shaft portion without the elastic snap-fit ​​portion slides into contact with the top inner wall of the sleeve portion; As a further description of the above technical solution: The adaptive deformation mechanism includes multiple barbs provided on the outer wall of the tail end of the second rivet, and multiple preset fracture grooves are provided on the tail end of the second rivet along its outer and inner walls to guide the tail end to rotate outward during riveting. As a further description of the above technical solution: The preset fracture groove includes a preset fracture outer groove opened along the circumferential direction of the outer wall of the tail end of the second riveting part and a preset fracture inner groove opened along the circumferential direction of the inner wall of the tail end of the second riveting part, and the preset fracture inner groove and the preset fracture outer groove are correspondingly provided. As a further description of the above technical solution: The inner wall of the tail end of the second rivet is rounded.

[0006] This utility model has the following beneficial effects: 1. In this utility model, the tapered section on the connecting shaft forms a sliding fit with the tapered guide cavity on the inner wall of the second rivet. When inserted, radial compression is applied to the elastic snap-fit ​​part, and the axial opening on the tapered section provides a contraction space for the elastic protruding ring, allowing it to pass smoothly through the narrow diameter area. After passing through, the elastic snap-fit ​​part automatically recovers and snaps into the snap-fit ​​groove, forming an axial limit. This mechanism does not require additional tools and can be locked by axial thrust alone, which improves installation efficiency, ensures the stability of the connection, and effectively prevents accidental detachment during use.

[0007] 2. In this utility model, the preset fracture inner groove and preset fracture outer groove correspondingly provided on the inner and outer walls of the tail end of the second rivet form a stress concentration area, which guides the tail end to deform outward along a predetermined path under riveting pressure. The rounded corner treatment makes the deformation smooth and controllable. Multiple barbs on the outer wall of the tail end penetrate into the substrate fiber as it is turned outward to form a mechanical interlock. This mechanism makes the tail end of the rivet fit tightly against the substrate, greatly increasing the contact area and friction. It can adapt to the differences in substrate thickness and significantly improve the connection strength through the micro-anchoring of the barbs, effectively preventing loosening and falling off due to pulling during use. Attached Figure Description

[0008] Figure 1 This is a perspective view of a hollow rivet for clothing proposed in this utility model; Figure 2 This is a schematic diagram of the structure of a rivet seat for a hollow rivet used in clothing, as proposed in this utility model. Figure 3 This is a schematic diagram of the micro-barb layer of a hollow rivet for clothing proposed in this utility model; Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0009] Legend: 1. First riveting component; 2. Connecting shaft; 3. Tapered section; 4. Tapered guide cavity; 5. Opening; 6. Elastic snap-fit ​​part; 7. Second riveting component; 8. Snap-fit ​​groove; 9. Pre-set fracture inner groove; 10. Pre-set fracture outer groove; 11. Barb. Detailed Implementation

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0011] Reference Figure 1 , Figure 3 and Figure 4 The present invention provides an embodiment of a hollow rivet for clothing, comprising a first rivet 1 and a second rivet 7. A self-locking mechanism is provided between the first rivet 1 and the second rivet 7 to achieve a locking connection between the two in the axial direction. An adaptive deformation mechanism is provided at the tail of the second rivet 7 to adapt to the substrate and enhance the connection stability during the riveting process. The bottom side of the first rivet 1 abuts against the top side of the second rivet 7, and the abutment between the two constitutes the basic support surface after the rivet is installed, ensuring the flatness of the connection. The self-locking mechanism includes a connecting shaft portion 2 disposed on the first riveting member 1. The connecting shaft portion 2 is a key transition structure for realizing the detachable connection between the first riveting member 1 and the second riveting member 7. At least a portion of the connecting shaft portion 2 is a tapered section 3. The design of the tapered section 3 facilitates the insertion of the connecting shaft portion 2 into the second riveting member 7 and provides the necessary structural basis for the subsequent locking action. The second riveting member 7 has a sleeve portion, which provides space for the connecting shaft portion 2 to be accommodated and guided. Its inner wall is provided with a tapered guide cavity 4 that slides with the tapered section 3. The connecting shaft portion 2 is also provided with at least one elastic snap-fit ​​portion 6. The inner wall of the sleeve portion is provided with a snap-fit ​​groove 8. The snap-fit ​​groove 8 provides the locking position for the elastic snap-fit ​​portion 6 and is the other party to the locking engagement. The elastic snap-fit ​​portion 6 includes multiple elastic protruding rings disposed at the bottom of the tapered section 3. The use of multiple elastic protruding rings can disperse the locking force, improve the reliability of the connection, and is easy to implement in manufacturing. The snap-fit ​​groove 8 is an annular snap-fit ​​groove corresponding to the elastic protruding rings. When the connecting shaft 2 is inserted into the sleeve, the elastic snap-fit ​​part 6 is compressed as it passes through the tapered guide cavity 4. This compression process is due to the diameter of the tapered guide cavity 4 gradually decreasing, which forces the elastic convex ring to contract inward and engage with the snap-fit ​​groove 8 after passing through. After passing through, the elastic convex ring loses its restraining force and returns to its original or near-original shape, thereby embedding itself in the snap-fit ​​groove 8, thereby restricting the axial separation of the first riveting part 1 and the second riveting part 7. The tapered section 3 has multiple openings 5 ​​along its axis. The openings 5 ​​are the key structure for the elastic convex ring to pass smoothly through the tapered guide cavity 4. They provide the necessary space for the compression deformation of the elastic convex ring, so that the elastic convex ring is compressed and retracts into the openings 5 ​​when it is inserted into the tapered guide cavity 4 along with the tapered section 3. The presence of the openings 5 ​​makes the compression process smooth and controllable, avoiding damage to the elastic convex ring or the sleeve due to forced compression. The outer wall of the connecting shaft 2 without the elastic snap-fit ​​part 6 slides with the top inner wall of the sleeve.

[0012] Reference Figure 1 , Figure 2 and Figure 3The adaptive deformation mechanism includes multiple barbs 11 disposed on the outer wall of the tail end of the second riveting member 7. The barbs 11 are important microstructures that enhance the gripping force between the rivet and the connected substrate, and can penetrate into the fiber interior of the substrate to form a mechanical engagement. The tail end of the second riveting member 7 has multiple preset fracture grooves along its outer and inner walls, which are used to guide the tail end to rotate outward during riveting. By guiding the deformation, the tail end can be tightly fitted or even partially embedded in the substrate, greatly increasing the contact area and friction. The preset fracture grooves include preset fractures opened along the circumferential direction of the outer wall of the tail end of the second riveting member 7. The outer groove 10 and the pre-set fracture inner groove 9 opened along the circumferential direction of the inner wall of the tail end of the second riveting member 7 make the deformation of the tail end more controllable. This usually leads to the tail end forming a petal-shaped or scale-shaped outward-turned structure. The pre-set fracture inner groove 9 and the pre-set fracture outer groove 10 are set in correspondence, which ensures the consistency and symmetry of deformation and avoids the reduction of connection strength caused by irregular deformation. The inner wall of the tail end of the second riveting member 7 is rounded. The rounded corner treatment eliminates sharp edges, reduces local stress concentration, makes the deformation process smoother, and is less likely to cause accidental breakage.

[0013] Working principle: During installation, the operator aligns the connecting shaft 2 at the bottom of the first riveting part 1 with the sleeve opening of the second riveting part 7 and applies pressure to insert it. The tapered section 3 on the connecting shaft 2 slides tightly with the tapered guide cavity 4 on the inner wall of the second riveting part 7. As insertion proceeds, the inner wall of the tapered guide cavity 4 exerts a radially inward squeezing force on the elastic locking part 6 located at the bottom of the tapered section 3. At this time, the axial opening 5 pre-opened on the tapered section 3 provides space for the elastic locking part 6 to shrink and deform inward, allowing it to pass smoothly through the narrower part of the tapered guide cavity 4. When the elastic locking part 6 has completely passed through the tapered guide cavity 4, the elastic locking part 6, freed from the squeezing force constraint, recovers its original shape using its own elasticity and fits precisely into the corresponding locking groove 8 on the inner wall of the second riveting part 7. This locking fit effectively restricts the relative axial movement of the first riveting part 1 and the second riveting part 7, thereby achieving a firm and reliable axial locking connection between the two and completing the self-locking process. After the initial axial locking of the first riveting part 1 and the second riveting part 7 is completed, it is necessary to further fix the tail end of the second riveting part 7 to the substrate to be connected, such as fabric. At this time, the matching riveting tool, such as a punch, is used to apply axial pressure to the tail end of the second riveting part 7. This pressure causes the tail end of the second riveting part 7 to undergo plastic deformation. Since the inner and outer walls of the tail end are pre-processed with corresponding preset fracture inner grooves 9 and preset fracture outer grooves 10, these grooves constitute weak areas of stress concentration, guiding the tail end to roll outward or expand along a predetermined path. During the deformation process, the rounded corner treatment of the inner wall of the tail end effectively reduces stress concentration, making the deformation smoother and more controllable, avoiding unnecessary cracking. At the same time, the multiple barbs 11 set on the outer wall of the tail end will penetrate and tightly bite into the substrate as the tail end rolls outward, so that the rivet can adapt well to substrates of different thicknesses and materials, and form a stable anchor point on the substrate, which greatly enhances the overall connection stability and reliability of the rivet.

[0014] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A hollow rivet for clothing, comprising a first rivet (1) and a second rivet (7), characterized in that: A self-locking mechanism is provided between the first riveting member (1) and the second riveting member (7) to achieve a locking connection between the two in the axial direction. An adaptive deformation mechanism is provided at the tail of the second riveting member (7) to adapt to the substrate and enhance the connection stability during the riveting process. The self-locking mechanism includes a connecting shaft portion (2) disposed on the first riveting member (1), at least a portion of which is a tapered section (3); the second riveting member (7) has a sleeve portion, the inner wall of which is provided with a tapered guide cavity (4) that slides with the tapered section (3); the connecting shaft portion (2) is also provided with at least one elastic snap-fit ​​portion (6), the inner wall of the sleeve portion is provided with a corresponding snap-fit ​​groove (8).

2. The hollow rivet for clothing according to claim 1, characterized in that: When the connecting shaft (2) is inserted into the sleeve, the elastic snap-fit ​​part (6) is compressed as it passes through the tapered guide cavity (4) and engages with the snap-fit ​​groove (8) after passing through, thereby restricting the axial separation of the first rivet (1) and the second rivet (7).

3. A hollow rivet for clothing according to claim 2, characterized in that: The elastic snap-fit ​​part (6) includes a plurality of elastic protruding rings disposed at the bottom of the tapered section (3), and the snap-fit ​​groove (8) is an annular snap-fit ​​groove corresponding to the elastic protruding rings.

4. A hollow rivet for clothing according to claim 3, characterized in that: The tapered segment (3) has multiple openings (5) in the axial direction, which are used to compress the elastic convex ring and retract it into the openings (5) when the elastic convex ring is inserted into the tapered guide cavity (4) along with the tapered segment (3).

5. A hollow rivet for clothing according to claim 2, characterized in that: The bottom side of the first riveting member (1) abuts against the top side of the second riveting member (7), and the outer wall of the connecting shaft part (2) without the elastic snap-fit ​​part (6) slides with the top inner wall of the sleeve part.

6. A hollow rivet for clothing according to claim 1, characterized in that: The adaptive deformation mechanism includes multiple barbs (11) on the outer wall of the tail end of the second riveting member (7). The tail end of the second riveting member (7) has multiple preset fracture grooves along its outer and inner walls, which are used to guide the tail end to flip outward and deform during riveting.

7. A hollow rivet for clothing according to claim 6, characterized in that: The preset fracture groove includes a preset fracture outer groove (10) opened along the circumferential direction of the outer wall of the tail end of the second riveting member (7) and a preset fracture inner groove (9) opened along the circumferential direction of the inner wall of the tail end of the second riveting member (7), and the preset fracture inner groove (9) and the preset fracture outer groove (10) are provided correspondingly.

8. A hollow rivet for clothing according to claim 6, characterized in that: The inner wall of the tail end of the second rivet (7) is rounded.

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