Metal four-loop fastener

Abstract

The utility model relates to a metal four -in -one buckle, including A, B, C and D, A includes bottom plate, cylinder foot, B includes B piece shell, buckle seat, elastic polygonal ring, second baffle, flower piece, C includes C piece shell, pressure column piece, D includes nail bottom, nail column, compared with prior art, the utility model provides resistance to the C piece after buckling through elastic polygonal ring, so that both can occur fastening buckle. Through the first baffle to buckle seat bottom forms the support, is convenient for buckle seat to carry out the operation such as lettering, also can provide resistance to A piece cylinder foot, effectively avoided that cylinder foot will buckle seat bottom be pricked or pricked out the boss. Through the first accommodating space reserves the space of cylinder foot being blocked back, can be applicable to arbitrary length's cylinder foot, to also can adapt to the A piece with different length cylinder foot.

Description

Technical Field

[0001] This utility model relates to the field of button technology, and in particular to a metal snap fastener. Background Technology

[0002] Snap fasteners are widely used in various types of clothing, such as jackets, jeans, ski jackets, and other garments made of thicker fabrics, as well as shirts, dresses, and other thinner fabrics. They are commonly used to fasten collars, cuffs, and hems, making clothing more secure and aesthetically pleasing while facilitating dressing and undressing. They are also widely used in bags, home furnishings, and medical supplies. However, the following drawbacks have gradually emerged in the use of snap fasteners:

[0003] (1) When the A part of the snap fastener is opened, it is easy to puncture the bottom of the B part's fastening seat, resulting in a low yield rate;

[0004] (2) Align the raised dome on the top of part C of the snap fastener with the groove in the center of part B and apply pressure to insert it. The elastic retaining ring (or claw) inside part B is pushed open by the protrusion of part C, resulting in radial elastic deformation (outward expansion). When the protrusion of part C completely passes the retaining ring of part B, the retaining ring quickly retracts and returns to its original position due to the elasticity of the metal. At this time, the concave neck below the protrusion of part C is tightly locked by the retaining ring of part B, forming a mechanical interlock. However, such a mechanism is prone to problems such as loosening of the fit or failure of the spring due to vibration and friction during long-term use.

[0005] (3) The A-piece of the snap fastener has poor adaptability, and a single specification of fastener cannot be adapted to the A-piece of different lengths of cylinder legs. Utility Model Content

[0006] The purpose of this invention is to overcome the problems existing in the current snap fasteners and to provide a metal snap fastener.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] The technical solution of this utility model is to provide a metal four-piece snap fastener, including part A, part B, part C, and part D. Parts A and B are combined with a first fabric, and parts C and D are combined with a second fabric. Part C also snaps onto part B to connect the first and second fabrics.

[0009] Component A includes a base plate and cylindrical feet disposed on the base plate;

[0010] The B component includes a B component housing, a fastening seat disposed inside the B component housing, an elastic polygonal ring disposed between one side of the fastening seat and the B component housing, a second baffle wall disposed between the other side of the fastening seat and the B component housing, and a flower-shaped component. The elastic polygonal ring is polygonal, and the flower-shaped component includes a first baffle wall disposed between the fastening seat and the second baffle wall and an inverted peak protrusion disposed on the first baffle wall and passing through the second baffle wall.

[0011] The C component includes a C component housing for engaging with the fastening seat, and a pressure column disposed within the C component housing. The pressure column is provided with a fourth accommodating space that extends vertically.

[0012] The D component includes a nail base and a nail post disposed on the nail base for insertion into the fourth accommodating space.

[0013] In some specific embodiments, the fastening seat includes a first fastening groove for fastening with the A piece and a second fastening groove for fastening with the C piece; the first fastening groove includes a second receiving space formed by one side wall edge of the fastening seat and the inner wall of the outer shell and for accommodating the flower piece and the second baffle; the second fastening groove includes a third receiving space formed by the other side wall edge of the fastening seat and the inner wall of the outer shell and for accommodating the elastic polygonal ring.

[0014] After the second baffle wall bends at the outer peripheral end where the inverted peak protrusion passes through, it forms a first accommodating space with the first baffle wall to accommodate the flowering of the tube foot.

[0015] In some specific embodiments, the elastic polygonal ring is hexagonal or octagonal.

[0016] In some specific embodiments, the elastic polygonal ring includes a first elastic portion disposed within the third accommodating space and a second elastic portion protruding inward toward the inner ring direction and used to abut against the C-piece; the diameter of the first elastic portion is the same as the width of the third accommodating space.

[0017] In some specific embodiments, the edges of the inverted peak protrusion are rounded.

[0018] In some specific embodiments, the length of the cylinder foot is greater than or equal to the protrusion length of the inverted peak protrusion.

[0019] In some specific embodiments, the C-part housing includes an upper wide portion for engaging with the fastening seat, and a lower narrow portion connected to the upper wide portion by a ramp, wherein the cross-sections of the upper wide portion and the lower narrow portion are both trapezoidal.

[0020] In some specific embodiments, the minimum diameter of the narrow lower portion of the C-part housing is the same as the opening diameter of the B-part housing near the elastic polygonal ring;

[0021] The minimum diameter of the wide portion of the outer shell of component C is greater than the diagonal length of the elastic polygonal ring.

[0022] In some specific embodiments, the cross-section of the fourth accommodating space is trapezoidal, with the diameter of its inlet opening being smaller than the diameter of the other opening, and the diameter of the inlet opening being the same as the widest diameter of the nail.

[0023] In some specific embodiments, the length of the nail post is greater than the height of the fourth accommodating space.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] (1) This utility model reduces the friction loss of the flowering part by the smooth edge design of the inverted peak protrusion of the flowering part and protects the integrity of the cylinder foot structure; by the design of the first baffle of the flowering part wrapping the bottom of the fastening seat, a physical barrier layer (hard material + full coverage design) is formed, which significantly reduces the risk of puncture and improves the manufacturing yield.

[0026] (2) This utility model designs an elastic polygonal ring and embeds it into the third accommodating space of part B. Its protruding part forms an elastic resistance to part C. The interference design of the narrowest diameter of the upper part of part C and the diagonal length of the elastic ring generates radial clamping force, which enhances the fastening strength and anti-loosening ability.

[0027] (3) The lower end of the second baffle of part B is provided with a first accommodating space, which allows the cylinder leg to be blocked and turned back when it is extended too long; combined with the multi-level limiting of the inverted peak protrusion and the first baffle, the universal flowering of short and long cylinder legs can be realized.

[0028] (4) By designing the first baffle as the support base at the bottom of the B-piece fastening seat, a flat support surface is provided to directly bear the processing operations (such as laser engraving). Attached Figure Description

[0029] Figure 1 This is a structural schematic diagram of the metal snap fastener A part of this utility model.

[0030] Figure 2 This is a schematic diagram of the structure of the metal snap fastener B part of this utility model.

[0031] Figure 3 This is a schematic diagram of another structure of the metal snap fastener B part of this utility model. Figure 4 This is a structural schematic diagram of the C-piece of the metal four-in-one fastener of this utility model.

[0032] Figure 5 This is a structural schematic diagram of the metal snap fastener D part of this utility model.

[0033] Figure 6This is a schematic diagram of the fastening structure of the metal snap fastener A and B of this utility model.

[0034] Figure 7 This is a schematic diagram of the fastening structure of the metal snap fastener C and D of this utility model.

[0035] Figure 8 This is an exploded view of parts A, B, C, and D of the metal snap fastener of this utility model.

[0036] The diagram is labeled as follows:

[0037] 1 is part A, 101 is the base plate, and 102 is the cylinder foot.

[0038] 2 is part B, 201 is the outer shell of part B, 202 is the fastening seat, 203 is the elastic polygonal ring, 2031 is the first elastic part, 2032 is the second elastic part, 204 is the second baffle, 205 is the opening part, 2051 is the first baffle, 2052 is the inverted peak protrusion, 206 is the first accommodating space, 207 is the second accommodating space, and 208 is the third accommodating space.

[0039] 3 is part C, 301 is the outer shell of part C, 3011 is the upper wide section, 3012 is the lower narrow section, 302 is the pressure pillar, and 303 is the fourth accommodating space.

[0040] 4 is part D, 401 is the nail bottom, and 402 is the nail post. Detailed Implementation

[0041] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. This embodiment is based on the technical solution of the present invention and provides detailed implementation methods and specific operating procedures; however, the scope of protection of the present invention is not limited to the following embodiments.

[0042] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0043] The following detailed description of some embodiments of the present invention is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0044] In the following embodiments, unless otherwise specified, the functional components or structures are conventional components or structures used in the art to achieve the corresponding functions.

[0045] Example 1

[0046] like Figures 1-8As shown, a metal snap fastener includes A1, B2, C3, and D4. A1 and B2 are combined with a first fabric, C3 and D4 are combined with a second fabric, and C3 is also fastened to B2 to connect the first and second fabrics.

[0047] like Figure 1 , 8 As shown, component A1 includes a base plate 101 and cylindrical feet 102 disposed on the base plate 101.

[0048] like Figure 2 , 3 As shown in Figure 8, component B2 includes a component B housing 201, a fastening seat 202 disposed within the component B housing 201, an elastic polygonal ring 203 disposed between one side of the fastening seat 202 and the component B housing 201, a second baffle 204 disposed between the other side of the fastening seat 202 and the component B housing 201, and a blossoming component 205. The elastic polygonal ring 203 is polygonal, and the blossoming component 205 includes a first baffle 2051 disposed between the fastening seat 202 and the second baffle 204, and an inverted peak protrusion 2052 disposed on the first baffle 2051 and passing through the second baffle 204.

[0049] like Figure 4 , 8 As shown, component C3 includes a C-component housing 301 for fastening with the fastening seat 202, and a pressure post 302 disposed within the C-component housing 301. The pressure post 302 has a fourth accommodating space 303 that extends vertically through the component. Figure 5 , 8 As shown, component D 4 includes a nail base 401 and a nail post 402 disposed on the nail base 401 and used for insertion into the fourth accommodating space 303. Figure 7 As shown, when C part 3 and D part 4 are fastened together, the end of the nail post 402 bends and extends within the fourth accommodating space 303.

[0050] This technical solution addresses two issues. First, by providing a polygonal elastic ring 203 between one side of the fastening seat 202 and the outer shell 201 of part B, the elastic ring 203 provides resistance to part C 3 when it is fastened to part B 2, ensuring a tight fastening. Second, the first baffle 2051 located between the fastening seat 202 and the second baffle 204 essentially covers the bottom of the fastening seat 202, providing support and facilitating engraving and other operations. This effectively solves the problem that the second fastening groove of the fastening seat 202 is too deep, making aesthetic finishing difficult without support. It also provides resistance to the cylindrical foot 102 of part A 1, effectively preventing the cylindrical foot 102 from piercing or protruding the bottom of the fastening seat 202.

[0051] Based on the above embodiments, the fastening seat 202 includes a first fastening groove for fastening with the A part 1 and a second fastening groove for fastening with the C part 3. For example, the fastening seat 202 has a recess in the middle. Figure 2 The first engagement groove is located below the engagement seat 202, and the second engagement groove is located above the engagement seat 202.

[0052] The first fastening groove includes a second receiving space 207 formed by the edge of one side wall of the fastening seat 202 and the inner wall of the outer shell 201, for accommodating the flowering member 205 and the second baffle 204. The second baffle 204, after bending at its outer peripheral end where the inverted peak protrusion 2052 passes, forms a first receiving space 206 with the first baffle 2051 for accommodating the flowering member 102. In this embodiment, as... Figure 5 As shown, when the cylindrical leg 102 of part A1 is inserted into the nesting of part B2 and the opening part 205, the cylindrical leg 102 is opened by the inverted peak protrusion 2052, and the cylindrical leg 102 opens towards the edge. When it opens to the bottom of the first baffle 2051, it is blocked by the bottom of the first baffle 2051 and then bends and extends within the first receiving space 206. This effectively prevents the cylindrical leg 102 from piercing the bottom of the fastening seat 202 or piercing the protrusion, thus avoiding defects. The first receiving space 206 is designed to provide space for the cylindrical leg 102 to retract after being blocked, and is suitable for cylindrical legs 102 of any length, thus also accommodating parts A1 with cylindrical legs 102 of different lengths.

[0053] like Figure 2 As shown, the second fastening groove includes a third accommodating space 208 formed by the edge of the other side wall of the fastening seat 202 and the inner wall of the outer shell 201, for accommodating the elastic polygonal ring 203. In this embodiment, when part C 3 and part B 2 are fastened together, the second elastic part 2032 can provide resistance to part C 3 after fastening, so that the two can be fastened together securely, and no mechanical damage or friction will be caused by repeated fastening of part B 2 and part C 3.

[0054] Based on the above embodiments, as a more preferred embodiment, such as... Figure 3As shown, the elastic polygonal ring 203 includes a first elastic portion 2031 disposed within the third accommodating space 208 and a second elastic portion 2032 protruding inwards and used to abut against the C-piece 3. The diameter of the first elastic portion 2031 is the same as the width of the third accommodating space 208, thereby fixing the elastic polygonal ring 203 to the B-piece housing 201. The elastic polygonal ring 203 is a uniformly distributed polygon, such as a hexagon or octagon. When the first elastic portion 2031 of the elastic polygonal ring 203 is embedded in the third accommodating space 208, the second elastic portion 2032 protrudes inwards, shortening the opening diameter of the B-piece housing 201. When fastened with the C-piece 3, it can provide resistance to the C-piece 3, causing the two to be tightly fastened together.

[0055] Based on the above implementation method, the inverted peak protrusion 2052 is in the shape of an inverted mountain peak with rounded edges to prevent damage to the tube foot 102 during flowering, enhance the fastening force, and improve the product yield.

[0056] Based on the above embodiments, the length of the cylindrical foot 102 is greater than or equal to the protrusion length of the inverted peak protrusion 2052, satisfying the requirements of A part 1 for various cylindrical foot 102 lengths.

[0057] Based on the above embodiments, the outer shell 301 of component C includes an upper wide portion 3011 for fastening with the fastening seat 202, and a lower narrow portion 3012 connected to the upper wide portion 3011 by a ramp. The cross sections of the upper wide portion 3011 and the lower narrow portion 3012 are both trapezoidal.

[0058] Based on the above embodiments, the minimum diameter of the lower narrow portion 3012 of the C-part housing 301 is the same as the opening diameter of the B-part housing 201 near the elastic polygonal ring 203; the minimum diameter of the upper wide portion 3011 of the C-part housing 301 is greater than the diagonal length of the elastic polygonal ring 203, i.e., an interference fit design, which generates radial clamping force.

[0059] Based on the above implementation method, the length of the nail post 402 is greater than the height of the fourth accommodating space 303. The cross-section of the fourth accommodating space 303 is trapezoidal, and the diameter of its inlet opening is smaller than the diameter of the other opening. The diameter of the inlet opening is the same as the widest diameter of the nail post 402. Thus, when the nail post 402 is pressed into the fourth accommodating space 303, it bends and extends within the fourth accommodating space 303, which also achieves the fastening of part C 3 and part D 4.

[0060] In summary, based on the above implementation method, parts A1, B2, C3, and D4 are made of zinc alloy + 65 copper, which has high ductility and is easy to hammer together. If they were all alloys, they might break and wear.

[0061] like Figure 6 As shown, when part A1 and part B2 are combined, part A1's tube leg 102 passes through the first fabric and wraps around the inverted peak protrusion 2052 of part B2. When pressure is applied, the tube leg 102 extends in all directions. When it encounters the first baffle 2051, it is blocked back. If the tube leg 102 is long, it extends to the first receiving space 206 of the second baffle 204 and is blocked back, continuing to extend within the first receiving space 206.

[0062] like Figure 7 As shown, when C3 and D4 are combined, the nail post 402 of D4 passes through the second fabric and the opening channel of C3 in sequence and enters the fourth accommodating space 303 of C3. The diameter of the channel in the fourth accommodating space 303 is narrower closer to the opening and wider further away from the opening. When pressure is applied, the end of the nail post 402 is blocked by the outer shell 301 of C, thereby bending and extending within the fourth accommodating space 303, thus making C3 and D4 fastened together.

[0063] When parts A1, B2, C3, and D4 are combined, the second fastening groove of part B2 has a third accommodating space 208 for accommodating the elastic polygonal ring 203. At the same time, the diameter of the narrowest part of the lower narrow section of the outer shell 301 of part C is the same as the diameter of the opening of the outer shell 201 of part B near the elastic polygonal ring 203. Based on the elasticity of the elastic polygonal ring 203, the diameter of the narrowest part of the upper wide section of the outer shell 301 of part C is greater than the diagonal length of the elastic polygonal ring 203, i.e., an interference fit design, which generates radial clamping force.

[0064] The above description of the embodiments is provided to enable those skilled in the art to understand and use the utility model. It will be apparent to those skilled in the art that various modifications can be easily made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present utility model is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present utility model without departing from its scope should be within the protection scope of the present utility model.

Claims

1. A metal snap fastener, characterized in that, Including item A (1), item B (2), item C (3), and item D (4), The A component (1) includes a base plate (101) and cylindrical feet (102) disposed on the base plate (101); The B component (2) includes a B component housing (201), a fastening seat (202) disposed inside the B component housing (201), an elastic polygonal ring (203) disposed between one side of the fastening seat (202) and the B component housing (201), a second baffle (204) disposed between the other side of the fastening seat (202) and the B component housing (201), and a flower-shaped component (205). The elastic polygonal ring (203) is polygonal, and the flower-shaped component (205) includes a first baffle (2051) disposed between the fastening seat (202) and the second baffle (204) and an inverted peak protrusion (2052) disposed on the first baffle (2051) and passing through the second baffle (204). The C-piece (3) includes a C-piece housing (301) for fastening with the fastening seat (202) and a pressure post (302) disposed in the C-piece housing (301). The pressure post (302) is provided with a fourth accommodating space (303) that extends vertically. The D component (4) includes a nail base (401) and a nail post (402) disposed on the nail base (401) and used for insertion into the fourth accommodating space (303).

2. The metal snap fastener according to claim 1, characterized in that, The fastening seat (202) includes a first fastening groove for fastening with the A part (1) and a second fastening groove for fastening with the C part (3); the first fastening groove includes a second receiving space (207) formed by the edge of one side wall of the fastening seat (202) and the inner wall of the outer shell (201) for accommodating the flower part (205) and the second baffle (204); the second fastening groove includes a third receiving space (208) formed by the edge of the other side wall of the fastening seat (202) and the inner wall of the outer shell (201) for accommodating the elastic polygonal ring (203); After the second baffle (204) bends at the outer peripheral end where the inverted peak protrusion (2052) passes through, it forms a first accommodating space (206) with the first baffle (2051) for accommodating the flowering of the tube foot (102).

3. The metal snap fastener according to claim 1, characterized in that, The elastic polygonal ring (203) is hexagonal or octagonal.

4. The metal snap fastener according to claim 2, characterized in that, The elastic polygonal ring (203) includes a first elastic portion (2031) disposed in the third accommodating space (208) and a second elastic portion (2032) protruding in the direction of the inner ring and used to abut against the C piece (3); the diameter of the first elastic portion (2031) is the same as the width of the third accommodating space (208).

5. The metal snap fastener according to claim 2, characterized in that, The edges of the inverted peak protrusion (2052) are rounded.

6. The metal snap fastener according to claim 2, characterized in that, The length of the foot (102) is greater than or equal to the protrusion length of the inverted peak protrusion (2052).

7. The metal snap fastener according to claim 1, characterized in that, The outer shell (301) of component C includes an upper wide portion (3011) for fastening with the fastening seat (202) and a lower narrow portion (3012) connected to the upper wide portion (3011) by a ramp. The cross sections of the upper wide portion (3011) and the lower narrow portion (3012) are both trapezoidal.

8. The metal snap fastener according to claim 7, characterized in that, The minimum diameter of the lower narrow portion (3012) of the C-part housing (301) is the same as the opening diameter of the B-part housing (201) near the elastic polygonal ring (203); The minimum diameter of the upper wide portion (3011) of the C-part outer shell (301) is greater than the diagonal length of the elastic polygonal ring (203).

9. The metal snap fastener according to claim 1, characterized in that, The fourth accommodating space (303) has a trapezoidal cross-section, with the diameter of its inlet opening being smaller than the diameter of the other opening, and the diameter of the inlet opening being the same as the widest diameter of the nail post (402).

10. The metal snap fastener according to claim 1, characterized in that, The length of the nail post (402) is greater than the height of the fourth accommodating space (303).

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