Snap fastener assembly with multidirectional clamping structure

Abstract

The utility model provides a snap fastener assembly with a multidirectional clamping structure, which comprises a bearing positioning component, an elastic clamping component and an inserting joint component, the elastic clamping component comprises a clamping ring body and a clamping side edge, the clamping side edge of the elastic clamping component of the snap fastener assembly is divided into a plurality of independent side edge single pieces, and the clamping ring body is provided with a plurality of clamping grooves. When a plug-in joint component is inserted, the plug-in joint component is uniformly expanded to form 360-degree annular clamping force, single-point stress concentration is avoided, torsion resistance and pull-off resistance are greatly improved, the receding gap is shrunk along with expansion of the side edge single piece, an elastic deformation space is provided, plastic is prevented from fatigue fracture, stable clamping force is still kept after long-term use, and the service life of the plug-in joint component is prolonged. The guide cambered surface at the joint of the clamping side edge and the clamping ring body enables the insertion joint component to enter smoothly, reduces alignment difficulty and supports single-hand blind operation, and the clamping ring body and the clamping side edge are made of plastics, so that insertion resistance can be reduced, the snap fastener is easier to open and close, and higher connection stability is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a metal fastener, especially a snap fastener assembly with a multidirectional clamping structure. BACKGROUND

[0002] The patent document CN219742014U discloses a metal snap fastener, which forms a positioning step in the positioning disc piece matched with the locking ring, sets the locking ring as a polygonal structure made of plastic, sets the lower end face of the locking ring on the positioning step, sets a group of circumferential abutting faces protruding outward along the radial direction on the outer wall, forms a buffer gap between the locking ring and the positioning ring, when the male part of the snap fastener is inserted into the fastening space, the locking ring is clamped on the outer wall of the male part of the snap fastener, and the male part of the snap fastener is locked. The polygonal locking ring made of plastic has good elasticity, meets the locking requirements of the male part of the snap fastener, and is not prone to producing sound due to mutual collision in the cooperation process with the male part of the snap fastener made of metal. The locking force and the separation force are moderate, which is beneficial to improving the use convenience of the metal snap fastener and improving the locking performance of the metal snap fastener. However, the plastic locking ring set in the snap fastener adopts a polygonal structure, and after being clamped on the outer wall of the male part of the snap fastener, the male part of the snap fastener applies radial pressure to the locking ring, so that the locking ring produces irreversible deformation, and the locking force of the male part of the snap fastener gradually decreases, which affects the fastening reliability of the snap fastener assembly. Therefore, it is necessary to optimize the structure to overcome the above defects. SUMMARY

[0003] The utility model aims at providing a snap fastener assembly with a multidirectional clamping structure to improve the fastening reliability.

[0004] The utility model provides a snap fastener assembly with a multidirectional clamping structure to improve the fastening reliability.

[0005] A snap fastener assembly with a multidirectional clamping structure comprises:

[0006] A bearing positioning component is installed in the clothing fabric through a connecting rivet, and has a bearing space inside;

[0007] An elastic clamping component is installed in the bearing positioning component, and has a clamping space inside;

[0008] A plug-in joint component is installed in the clothing fabric through a connecting rivet, and is matched in shape with the elastic clamping component, which can be inserted into the elastic clamping component and clamped and positioned by the elastic clamping component;

[0009] The elastic clamping component comprises:

[0010] The clamping ring body is shaped to fit the load positioning member, is installed in the load positioning member, and is load-positioned by the load positioning member, and the plug-in engagement member can be inserted from the clamping ring body;

[0011] The clamping side edge is formed on the inner wall of the clamping ring body and is folded outward, extends along the circumference of the clamping ring body, and protrudes downward along the radial direction of the clamping ring body, the plug-in engagement member is shaped to fit the clamping side edge, the plug-in engagement member is clamped and positioned by the clamping side edge, and the clamping side edge is supported by the clamping ring body.

[0012] In an embodiment of the utility model, the elastic clamping member further comprises:

[0013] The position-avoiding gap is provided with a plurality of parts, each of which is arranged in the clamping side edge and the clamping ring body in sequence along the circumference of the clamping side edge and the clamping ring body, extends to the inside of the clamping ring body after penetrating the clamping side edge, and divides the clamping side edge into a plurality of independent side edge pieces, when the plug-in engagement member is inserted into the clamping ring body, each side edge piece is expanded outward along the radial direction, and each side edge piece is clamped on the outer wall of the plug-in engagement member, at this time, the width of the position-avoiding gap is reduced, and a position-avoiding space is provided for the expansion process of the side edge piece.

[0014] In an embodiment of the utility model, the junction part of the clamping side edge and the clamping ring body is provided with a guide arc surface, which guides the insertion process of the plug-in engagement member.

[0015] In an embodiment of the utility model, the clamping ring body and the clamping side edge are made of plastic.

[0016] In an embodiment of the utility model, the load positioning member comprises:

[0017] The load seat ring is outwardly protruded along the axial direction of the load seat ring, and a positioning recess shaped to fit the connecting rivet is formed on the inner side of the load seat ring, the connecting rivet is engaged with the middle part of the positioning recess after penetrating the load seat ring, the load seat ring is positioned, and the clamping side edge is inserted into the edge of the positioning recess and is load-positioned by the positioning recess;

[0018] The positioning ring is formed on the outer edge of the load seat ring, is curled upward, and is wrapped around the outer wall of the clamping ring body, so that the clamping ring body is load-positioned by the positioning ring.

[0019] In an embodiment of the utility model, the outer wall of the load seat ring is provided with a plurality of anti-skid protrusions, each of which is outwardly protruded along the axial direction of the load seat ring and is arranged in sequence along the circumference thereof, and can abut against the fabric of the clothes to apply frictional resistance to the contact surface of the load seat ring and the fabric of the clothes.

[0020] In one embodiment of the utility model, the plug-in joint assembly comprises:

[0021] The plug-in seat ring is bent outwardly at the inner edge and extends in the axial direction away from the plug-in seat ring, forming a joint outer cylinder, which is shaped to fit the clamping side edge, and can be inserted into the clamping ring body and abut against the inner wall of the clamping side edge, so that the clamping side edge clamps and positions the joint outer cylinder. The joint inner cylinder is bent inwardly at the end and extends in the axial direction towards the plug-in seat ring, forming a joint inner cylinder. The joint outer cylinder is wrapped outside the joint inner cylinder, and the joint inner cylinder structurally reinforces the joint outer cylinder. The end of the joint inner cylinder is folded inwardly to form a limiting ring edge, and the connecting rivet can be inserted into the joint inner cylinder and abut against the limiting ring edge to position the joint inner cylinder, the joint outer cylinder and the plug-in seat ring.

[0022] The utility model has the advantages of:

[0023] The clamping side edge of the elastic clamping member of the snap fastener assembly is divided into multiple independent side edge pieces, which are uniformly expanded when the plug-in joint member is inserted, forming a 360° annular clamping force, avoiding single-point stress concentration, greatly improving the anti-twisting and anti-pulling performance, avoiding the gap being reduced with the expansion of the side edge pieces, providing elastic deformation space, preventing plastic fatigue fracture, ensuring that the stable clamping force is maintained after long-term use, the guiding arc surface at the junction of the clamping side edge and the clamping ring body allows the plug-in joint member to smoothly enter, reducing the alignment difficulty, supporting one-handed blind operation, the clamping ring body and the clamping side edge are made of plastic, which can reduce the insertion resistance, making it easier to open and close the snap fastener, suitable for frequent use scenarios, ensuring high connection stability while considering ease of use, durability and light weight. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a cross-sectional structure diagram of a snap fastener assembly with a multi-directional clamping structure according to the utility model;

[0025] Figure 2 is an exploded view of the snap fastener assembly. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model protection.

[0027] As shown in Figure 1 , Figure 2 The snap fastener assembly with multidirectional clamping structure provided by the utility model comprises a bearing positioning member, an elastic clamping member and an insertion engagement member, the bearing positioning member is installed in the clothing fabric through a connecting rivet, has a bearing space inside, the elastic clamping member is installed in the bearing positioning member, has a clamping space inside, the insertion engagement member is installed in the clothing fabric through a connecting rivet and is shape-fitted with the elastic clamping member, can extend into the elastic clamping member and is clamped and positioned by the elastic clamping member; wherein the elastic clamping member comprises a clamping ring body 110 and a clamping side edge 120, the clamping ring body is shape-fitted with the bearing positioning member, is installed in the bearing positioning member, is bearing-positioned by the bearing positioning member, the insertion engagement member can be inserted from the clamping ring body, the clamping side edge is formed in the inner wall of the clamping ring body and is folded to the outside of the clamping ring body, extends along the circumference of the clamping ring body and protrudes downward along the radial direction of the clamping ring body, the insertion engagement member is shape-fitted with the clamping side edge, is clamped and positioned by the clamping side edge and is supported by the clamping ring body.

[0028] In the embodiment, the elastic clamping member further comprises a position-avoiding gap 130, the position-avoiding gap is provided with a plurality of pieces, each position-avoiding gap is arranged in the clamping side edge and the clamping ring body in sequence along the circumference of the clamping side edge and the clamping ring body, extends to the inside of the clamping ring body after penetrating through the clamping side edge, divides the clamping side edge into a group of mutually independent side edge single pieces, when the insertion engagement member extends into the clamping ring body, drives each side edge single piece to expand outward along the radial direction, so that each side edge single piece is clamped on the outer wall of the insertion engagement member, at this time, the width of the position-avoiding gap is reduced, providing a position-avoiding space for the expansion process of the side edge single piece.

[0029] In the embodiment, the joint part of the clamping side edge and the clamping ring body is provided with a guide arc surface 121, which guides the insertion process of the insertion engagement member.

[0030] In the embodiment, the clamping ring body and the clamping side edge are made of plastic.

[0031] In the embodiment, the bearing positioning member comprises a bearing seat ring 210 and a positioning ring 220, the middle part of the bearing seat ring protrudes outward along the axial direction, and a positioning notch 211 is formed on the inner side and is shaped to match the connecting rivet, the connecting rivet can penetrate the bearing seat ring and be engaged with the middle part of the positioning notch to position the bearing seat ring, the clamping side edge extends into the edge of the positioning notch, and the clamping side edge is positioned and supported by the positioning notch, and the positioning ring is formed on the outer edge of the bearing seat ring, is curled upwards relative to the bearing seat ring, and is wrapped around the outer wall of the clamping ring body, so that the clamping ring body is positioned and supported by the positioning ring.

[0032] In the embodiment, the outer wall of the bearing seat ring is provided with anti-skid protrusions 212, the anti-skid protrusions are arranged in a group, each anti-skid protrusion protrudes outward along the axial direction of the bearing seat ring, and is sequentially arranged along the circumferential direction, and the anti-skid protrusions can abut against the fabric of the clothes to apply frictional resistance to the contact surface between the bearing seat ring and the fabric of the clothes.

[0033] In the embodiment, the plug-in engagement assembly comprises a plug-in seat ring 310, the inner edge of the plug-in seat ring is bent outward and extends along the axial direction away from the plug-in seat ring to form an engagement outer cylinder 320, the engagement outer cylinder is shaped to match the clamping side edge, can be inserted into the clamping ring body and abut against the inner wall of the clamping side edge to be clamped and positioned by the clamping side edge, and the outer wall of the engagement outer cylinder is also provided with a limiting notch shaped to match the clamping side edge, the limiting notch assists in positioning the clamped state between the clamping side edge and the engagement outer cylinder to prevent the engagement outer cylinder from falling off the clamping side edge, the end of the engagement inner cylinder is bent inward and extends along the axial direction towards the plug-in seat ring to form an engagement inner cylinder 330, the engagement outer cylinder is wrapped outside the engagement inner cylinder to structurally reinforce the engagement outer cylinder by the engagement inner cylinder, the end of the engagement inner cylinder is folded inward to form a limiting ring edge 340, and the connecting rivet can be inserted into the engagement inner cylinder and engaged with the limiting ring edge to position the engagement inner cylinder, the engagement outer cylinder and the plug-in seat ring.

[0034] In the description of the utility model, it is necessary to explain that when the terms of indicating the orientation or position relationship such as "upper", "lower", "inner", "outer", "left", "right" and the like appear, it should be understood as the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the utility model product when it is usually placed, or the orientation or position relationship commonly understood by the person skilled in the art, and it is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, when the terms of "first", "second" and the like appear, they are only used for distinguishing the description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it is also necessary to explain that unless otherwise explicitly specified and limited, the terms of "mounting", "setting", "connecting" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A snap fastener assembly with multi-directional clamping structure, comprising: a load positioning member installed in a garment fabric by a connecting rivet, having a load space inside; a resilient clamping member installed in the load positioning member, having a clamping space inside; a plug-in engaging member installed in the garment fabric by a connecting rivet, and shaped to fit the resilient clamping member, and extendable into the resilient clamping member; characterized in that the resilient clamping member comprises: a clamping ring body shaped to fit the load positioning member, installed in the load positioning member, and into which the plug-in engaging member is extendable; a clamping side edge formed on the inner wall of the clamping ring body, and folded outwardly from the clamping ring body, extending along the circumference of the clamping ring body, and protruding downwardly along the radial direction of the clamping ring body, and shaped to fit the plug-in engaging member.

2. The snap assembly with a multi-directional clamping structure according to claim 1, wherein The resilient clamping member further comprises: a plurality of position-avoiding gap openings, each of which is formed in the clamping side edge and the clamping ring body, and arranged in sequence along the circumference of the clamping side edge and the clamping ring body, and extending through the clamping side edge to the inside of the clamping ring body, and dividing the clamping side edge into a plurality of independent side edge pieces.

3. The snap fastener assembly with multi-directional clamping structure according to claim 1, characterized in that: a guide arc surface is provided at the joint between the clamping side edge and the clamping ring body, and guides the plug-in engaging member during the insertion process.

4. The snap fastener assembly with multi-directional clamping structure according to claim 1, characterized in that: the clamping ring body and the clamping side edge are made of plastic.

5. The snap assembly having a multi-directional clamping structure according to claim 1, wherein The load positioning member comprises: a load seat ring, the middle part of which protrudes outwardly along the axial direction, and forms a positioning recess on the inner side, shaped to fit the connecting rivet, the connecting rivet is extendable through the load seat ring to engage with the middle part of the positioning recess, and the clamping side edge extends into the edge of the positioning recess; a positioning ring, formed on the outer edge of the load seat ring, and curled upwardly from the load seat ring, and wrapped around the outer wall of the clamping ring body, and positions and supports the clamping ring body by the positioning ring.

6. The snap fastener assembly with multi-directional clamping structure according to claim 5, characterized in that: a plurality of anti-skid protrusions are provided on the outer wall of the load seat ring, each of which protrudes outwardly along the axial direction of the load seat ring, and arranged in sequence along the circumference of the load seat ring.

7. The snap assembly having a multi-directional clamping structure of claim 1, wherein, The plug-in engaging member comprises: a plug-in seat ring, the inner edge of which is bent outwardly, and extends along the axial direction away from the plug-in seat ring, forming an engaging outer cylinder, shaped to fit the clamping side edge, and extendable into the clamping ring body to abut against the inner wall of the clamping side edge, and an engaging inner cylinder, the end of which is bent inwardly, and extends along the axial direction towards the plug-in seat ring, forming an engaging inner cylinder, the engaging outer cylinder is wrapped around the outer side of the engaging inner cylinder, and the end of the engaging inner cylinder is bent inwardly, forming a limiting ring edge, the connecting rivet is extendable into the engaging inner cylinder to engage with the limiting ring edge.

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