An improved female buckle, female buckle assembly, snap buckle

Abstract

The utility model provides a kind of improved female buckle, including female buckle shell, female buckle shell is equipped with male buckle receiving port, male buckle receiving port includes insertion port and is used to the male buckle into the male buckle and is engaged with the engagement port, insertion port and engagement port are communicated;Female buckle shell is integrally formed with elastic sheet in, and the elastic sheet extends from the direction of insertion port to engagement port.Improved female buckle is integrally formed with elastic sheet by optimizing male buckle receiving port and design, with the advantages of convenient buckling, strong anti-unbuckling performance.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, specifically to an improved female buckle, a female buckle assembly, and a four-in-one buckle. Background Technology

[0002] Current snap fasteners mostly adopt an AB-CD grouping structure design, where parts AB constitute the female snap fastener assembly, and parts CD constitute the male snap fastener assembly. These parts feature a raised dot and are secured by a spring clamping mechanism after being inserted into the female snap fastener hole. Part A of the female snap fastener assembly is the top decorative component, usually featuring patterns or designs. Part B is the female snap fastener itself, with a central female snap fastener hole and two internal parallel or ring springs; it combines with part A to form the female snap fastener assembly. Part C of the male snap fastener assembly is the male snap fastener, with a protruding round boss in the center. When pressed, it inserts into the female snap fastener hole, and the spring clamping creates the opening and closing force. Part D is the bottom snap fastener, the bottom fixing component, which works with part C to form the male snap fastener assembly. However, this traditional structure has the following technical problems:

[0003] 1. Insufficient reliability: The male buckle relies on spring clamping. After long-term use, the spring is prone to fatigue failure, resulting in a decrease in clamping force and the male buckle is prone to disengagement, especially in vibration or pulling environments.

[0004] 2. Complex assembly: The spring needs to be precisely installed into the female buckle, which increases production costs and assembly difficulty, and the spring is prone to misalignment or falling off.

[0005] 3. Inconvenient fastening: The male buckle requires considerable force to insert, resulting in a poor user experience.

[0006] In view of this, there is an urgent need for a female buckle that is simple in structure, easy to fasten, has good anti-disengagement performance, and is easy to assemble. This case study has conducted in-depth research on the above issues, and thus this case came into being. Utility Model Content

[0007] The present invention aims to solve the technical problems existing in the current female buckle by providing an improved female buckle, female buckle assembly, and four-in-one buckle. Through the one-piece molded elastic sheet and the optimized male buckle receiving port design, the defects of the traditional female buckle structure are effectively solved.

[0008] This utility model is implemented as follows: an improved female buckle includes a female buckle shell, the female buckle shell having a male buckle receiving port, the male buckle receiving port including an insertion port and a locking port for engaging the male buckle after insertion, the insertion port and the locking port being connected; an elastic sheet is integrally formed inside the female buckle shell, the elastic sheet extending from the insertion port to the locking port.

[0009] Furthermore, the insertion port is a circular insertion port, and the locking port is an elongated locking port, wherein the diameter of the circular insertion port is greater than the width of the elongated locking port.

[0010] Furthermore, the elastic sheet sequentially includes a first elastic segment, a second elastic segment, and a third elastic segment. The first elastic segment extends downward at an angle from the insertion port, the second elastic segment extends upward at an angle from the end of the first elastic segment, and the third elastic segment is set downward at an angle from the end of the second elastic segment.

[0011] Furthermore, the tilt angle of the first elastic segment is 45-75°, the tilt angle of the second elastic segment is 5-20°, and the tilt angle of the third elastic segment is 5-20°.

[0012] Furthermore, it also includes a female buckle bottom, the outer periphery of which extends to form a receiving portion for the female buckle bottom to be inserted, and the female buckle shell and the female buckle bottom are assembled to form a male buckle receiving cavity.

[0013] On the other hand, a female buckle assembly includes a face buckle and an improved female buckle. The face buckle includes a face shell and a multi-claw member. The face shell forms an assembly cavity for assembling the multi-claw member. The multi-claw member includes a bottom connecting piece installed in the assembly cavity and a plurality of claw member units, with the plurality of claw member units spaced around the inner edge of the bottom connecting piece.

[0014] Furthermore, the claw unit includes an upright portion connected to the bottom connecting piece and a winding portion that winds outward from the upright portion.

[0015] Furthermore, the number of claw components is 6, and the 6 claw components are equidistantly arranged in a ring around the inner edge of the bottom connecting piece.

[0016] Furthermore, the faceplate includes a circular panel, an annular limiting plate, and a connecting wall connecting the circular panel and the annular limiting plate; the face buckle also includes a gasket, which is assembled between the circular panel and the bottom connecting piece, and the bottom connecting piece is assembled between the gasket and the annular limiting plate.

[0017] On the other hand, a four-piece snap fastener includes a male snap assembly and a female snap assembly. The male snap assembly includes a male snap and a bottom snap, and the snap bead of the male snap has a groove formed on it to engage with the snap fastener.

[0018] The advantages of this utility model are:

[0019] 1. The improved female buckle of Example 1 features an innovative guide design for the insertion port and the locking port, allowing the male buckle to be easily inserted and slid into the locking position. The three-section structure of the elastic sheet increases the locking stability, reduces the difficulty of operation, and improves the user experience. The width W1 of the locking port is smaller than the male buckle diameter D2 but larger than the slot diameter D1. Combined with the continuous resisting force of the elastic sheet, a double anti-disengagement mechanism is formed, effectively preventing accidental opening caused by vibration or pulling. The one-piece molded elastic sheet replaces the traditional spring, reducing the number of parts and lowering manufacturing costs and assembly errors.

[0020] 2. In Example 2, the female buckle assembly provides decoration for the face buckle and ensures functionality for the improved female buckle, meeting both appearance and practical needs. The multi-claw design makes the connection between the face buckle and the improved female buckle more uniform and has high tensile strength, making it suitable for high-frequency use scenarios.

[0021] 3. The four-in-one buckle of Example 3, with its male and female fastener components, can be quickly fastened and stably locked, reducing the difficulty of use; it can be used in various fields such as clothing, bags, and outdoor products. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0023] Figure 1 This is a schematic diagram of the female snap shell structure in Example 1.

[0024] Figure 2 This is a cross-sectional view of the female snap shell in Example 1.

[0025] Figure 3 This is a schematic diagram of the improved female buckle in Example 1.

[0026] Figure 4 This is a cross-sectional view of the improved female buckle in Example 1.

[0027] Figure 5 This is a cross-sectional view along the length of the male buckle receiving opening in the male buckle receiving opening of the male buckle and the improved female buckle in Example 1.

[0028] Figure 6 This is a cross-sectional view along the width direction of the male buckle receiving opening in the context of the male buckle and the improved female buckle being fastened together in Example 1.

[0029] Figure 7 This is a schematic diagram of the assembly structure of the improved female buckle and face buckle in Example 2.

[0030] Figure 8 This is an assembly cross-sectional view of the improved female buckle and face buckle in Example 2.

[0031] Figure 9 This is a schematic diagram of the multi-claw component in Example 2.

[0032] Figure 10 This is a cross-sectional view of the shell in Example 2.

[0033] Figure 11 This is a breakdown diagram of the snap fastener in Example 3.

[0034] Figure 12 This is a cross-sectional view of the male fastener component in Embodiment 3.

[0035] Reference numerals: Female snap fastener assembly 100, improved female snap fastener 101, face snap fastener 102, female snap fastener shell 1, male snap fastener receiving port 2, insertion port 21, snap-fit ​​port 22, elastic piece 3, first elastic segment 31, second elastic segment 32, third elastic segment 33, female snap fastener bottom 4, receiving part 5, male snap fastener receiving cavity 6, face shell 7, assembly cavity 71, circular panel 72, annular limiting plate 73, connecting wall 74, fabric clamping space 75, multi-claw part 8, bottom connecting piece 81, claw part unit 82, upright part 821, winding part 822, gasket 9, four-in-one snap fastener 300, male snap fastener assembly 200, male snap fastener 201, snap bead 2011, slot 2012, bottom snap fastener 202. Detailed Implementation

[0036] To better understand the technical solution of this utility model, the technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] Example 1

[0038] Please see Figures 1 to 6 As shown, this embodiment provides an improved female buckle 101, including a female buckle shell 1. A male buckle receiving port 2 is provided in the center of the surface of the female buckle shell 1. The male buckle receiving port 2 includes an insertion port 21 and a locking port 22 for engaging the male buckle 201 after insertion. The insertion port 21 and the locking port 22 are connected. The male buckle receiving port 2 allows the male buckle 201 to be smoothly inserted and slid, achieving a guiding function and reducing alignment difficulty. The insertion port 21 facilitates the initial insertion of the male buckle 201, and the locking port 22 is used for final locking of the male buckle 201. The connection between the two ensures the continuous movement of the male buckle 201 from insertion to engagement, avoiding jamming. An elastic sheet 3 is integrally formed inside the female buckle shell 1. Preferably, the elastic sheet 3 is stamped integrally with the female buckle shell 1. Stamping integrally reduces the number of parts in the female buckle, lowers manufacturing costs and assembly errors, and also avoids the problems of fatigue or detachment of traditional springs. The elastic piece 3 extends from the insertion port 21 to the engagement port 22, providing a continuous elastic guiding force to keep the male buckle 201 stable during insertion and sliding engagement, and finally generates an upward resisting force at the engagement port 22. The elastic piece 3 and the engagement port 22 form a double limit on the male buckle 201 to prevent the male buckle 201 from loosening.

[0039] In this embodiment, as shown in the appendix Figure 1As shown, the insertion port 21 is a circular insertion port 21, which matches the shape of the buckle bead 2011 of the male buckle 201, reducing the resistance during insertion and making it easier for the male buckle 201 to be aligned and inserted; the locking port 22 is an elongated locking port 22, which guides the male buckle 201 to slide forward and restricts the lateral (width W1 direction) movement of the male buckle 201; the diameter D1 of the circular insertion port 21 is greater than the width W1 of the elongated locking port 22. Because the width W1 of the elongated locking port 22 is smaller than the diameter of the buckle bead 2011, when fastening, the upper surface of the buckle bead 2011 presses against the lower surface of the locking port 22, so that the male buckle 201 is effectively locked, forming a double anti-disengagement mechanism and enhancing the reliability of fastening.

[0040] In this embodiment, as shown in the appendix Figure 2 As shown, the elastic piece 3 sequentially includes a first elastic segment 31, a second elastic segment 32, and a third elastic segment 33. This three-segment elastic piece 3 design enables segmented control, making the insertion and sliding process of the male buckle 201 smoother. The first elastic segment 31 extends downwards at an angle from the insertion port 21, guiding the male buckle 201 to slide downwards. The second elastic segment 32 extends upwards at an angle from the end of the first elastic segment 31, and the third elastic segment 33 is positioned downwards at an angle from the end of the second elastic segment 32. This creates a protrusion at the connection between the second elastic segment 32 and the third elastic segment 33. After the male buckle 201 enters the third elastic segment 33, the third elastic segment 33 provides an upward resisting force, pressing the male buckle 201 against the engagement port 22, further enhancing the fastening force.

[0041] In this embodiment, the tilt angle J1 of the first elastic segment 31 is 45-75° (defining the surface of the female retaining shell 1 as a plane, the angle between the first elastic segment 31 and the plane is 45-75°, the same below), which optimizes the guiding angle. If the angle is too small, it will increase the insertion resistance; if the angle is too large, it will result in insufficient elasticity. The tilt angle J2 of the second elastic segment 32 is 5-20°, providing a smooth transition. The tilt angle J3 of the third elastic segment 33 is 5-20°, generating a moderate upward resisting force to ensure the clamping force.

[0042] In this embodiment, as shown in the appendix Figure 3 As shown, the improved female buckle 101 also includes a female buckle base 4. The outer periphery of the female buckle shell 1 extends to form a receiving portion 5 for the female buckle base 4 to be inserted, ensuring that the two are firmly engaged and preventing relative movement or separation. After the female buckle shell 1 and the female buckle base 4 are assembled, they form a male buckle receiving cavity 6, providing a space for the male buckle 201 to move.

[0043] The improved female buckle 101 of this embodiment has the following beneficial technical effects:

[0044] 1. Easy to snap: With the innovative guide design of the insertion port 21 and the snap-fit ​​port 22, the male buckle 201 can be easily inserted and slid into the snap-fit ​​position. The three-section structure of the elastic piece 3 increases the snap-fit ​​stability, reduces the difficulty of operation, and improves the user experience.

[0045] 2. Strong anti-disengagement performance: The width W1 of the locking opening 22 is smaller than the diameter D2 of the male buckle 201 but larger than the diameter D1 of the locking groove 2012. Combined with the continuous resisting force of the elastic piece 3, a double anti-disengagement mechanism is formed, which effectively prevents accidental opening caused by vibration or pulling.

[0046] 3. Simplified and reliable structure: The one-piece molded elastic sheet 3 replaces the traditional spring, reducing the number of parts, manufacturing costs, and assembly errors.

[0047] Example 2

[0048] Please see Figures 7 to 10 As shown, this embodiment provides a female buckle assembly 100, including a face buckle 102 and an improved female buckle 101 of Embodiment 1. The face buckle 102 includes a face shell 7 and a multi-claw member 8. The face shell 7 forms an assembly cavity 71 for assembling the multi-claw member 8. A fabric clamping space 75 is formed between the receiving part 5 and the face shell 7. The face buckle 102 is connected to the improved female buckle 101 through the multi-claw member 8, while ensuring stable assembly performance. The multi-claw member 8 includes a bottom connecting piece 81 installed in the assembly cavity 71 and multiple claw members 82. The bottom connecting piece 81 increases the connection area between the multi-claw member 8 and the face shell 7, improving tensile strength. The multiple claw members 82 are spaced around the inner edge of the bottom connecting piece 81, and the force is distributed through the multiple claw members 82, making the connection between the multi-claw member 8 and the female buckle shell 1 more uniform and firm.

[0049] In this embodiment, the claw unit 82 includes an upright portion 821 connected to the bottom connecting piece 81 and a winding portion 822 that is wound outward from the upright portion 821. The upright portion 821 provides deformability, and when multiple upright portions 821 deform inward simultaneously, it facilitates the insertion of the winding portion 822 into the receiving portion 5. When the upright portion 821 is reset, the winding portion 822 snaps into the receiving portion 5. The winding portion 822 is used to generate a continuous gripping force, enhancing the connection strength between the face buckle 102 and the improved female buckle 101.

[0050] In this embodiment, there are six claw components 82, which are equidistantly arranged in a ring around the inner edge of the bottom connecting piece 81. Too few claw components 82 may result in a weak connection, while too many increase complexity; six claw components 82 ensure symmetrical force distribution and avoid single-point failure. The equidistant arrangement of the six claw components 82 ensures uniform force distribution, improves connection stability, and is suitable for the circular face buckle 102 structure.

[0051] In this embodiment, the faceplate 7 includes a circular panel 72, an annular limiting plate 73, and a connecting wall 74 connecting the circular panel 72 and the annular limiting plate 73; the circular panel 72, the connecting wall 74, and the annular limiting plate 73 form a stable three-dimensional assembly space. The faceplate 102 also includes a gasket 9, which is assembled between the circular panel 72 and the bottom connecting piece 81, and the bottom connecting piece 81 is assembled between the gasket 9 and the annular limiting plate 73. The gasket 9 serves as a buffer and provides wear resistance, providing sufficient accommodating space for the female buckle bottom 4. The annular limiting plate 73 and the gasket 9 provide double fixation, making the assembly between the multi-claw part 8 and the faceplate 7 more stable.

[0052] The female buckle assembly 100 in this embodiment has the following beneficial technical effects: the face buckle 102 provides decoration, and the improved female buckle 101 ensures functionality, meeting the requirements of appearance and practicality; the multi-claw part 8 design makes the connection between the face buckle 102 and the improved female buckle 101 more uniform and has high tensile strength, which is suitable for high-frequency use scenarios.

[0053] Example 3

[0054] Please see Figures 11 to 12 As shown, this embodiment provides a four-in-one fastener 300, including a male fastener assembly 200 and a female fastener assembly 100 as described in Embodiment 2. The male fastener assembly 200 includes a male fastener 201 and a bottom fastener 202. The fastener bead 2011 of the male fastener 201 has a groove 2012 that mates with the locking opening 22. The groove 2012 is recessed in the circumferential direction of the outer wall of the fastener bead 2011. The male fastener assembly 200 and the female fastener assembly 100 cooperate to realize a complete four-in-one fastener 300 system. The groove 2012 of the male fastener 201 and the locking opening 22 of the female fastener are mechanically interlocked. The elastic piece 3 and the locking opening 22 provide double restraint for the male fastener 201, preventing the male fastener 201 from falling out and ensuring a firm fastening.

[0055] The four-hook buckle 300 of this embodiment has the following beneficial technical effects: the male buckle component 200 and the female buckle component 100 can be quickly fastened and stably locked, reducing the difficulty of use; it can be used in a variety of fields such as clothing, bags, and outdoor products.

[0056] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. An improved female buckle, comprising a female buckle shell, characterized in that: The female buckle shell has a male buckle receiving port, which includes an insertion port and a locking port for engaging the male buckle after it is inserted. The insertion port and the locking port are connected. An elastic sheet is integrally formed inside the female buckle shell, and the elastic sheet extends from the insertion port to the locking port.

2. The improved female buckle as described in claim 1, characterized in that: The insertion port is a circular insertion port, and the locking port is a long strip locking port. The diameter of the circular insertion port is greater than the width of the long strip locking port.

3. The improved female buckle as described in claim 2, characterized in that: The elastic sheet includes a first elastic segment, a second elastic segment, and a third elastic segment in sequence. The first elastic segment extends downward at an angle from the insertion port, the second elastic segment extends upward at an angle from the end of the first elastic segment, and the third elastic segment is set downward at an angle from the end of the second elastic segment.

4. The improved female buckle as described in claim 3, characterized in that: The first elastic segment has an inclination angle of 45-75°, the second elastic segment has an inclination angle of 5-20°, and the third elastic segment has an inclination angle of 5-20°.

5. The improved female buckle as described in claim 4, characterized in that: It also includes a female buckle bottom, the outer periphery of which extends to form a receiving part for the female buckle bottom to be inserted, and the female buckle shell and the female buckle bottom are assembled to form a male buckle receiving cavity.

6. A female snap fastener assembly, characterized in that: The invention includes a face buckle and an improved female buckle as described in any one of claims 1-5. The face buckle includes a face shell and a multi-claw member. The face shell forms an assembly cavity for assembling the multi-claw member. The multi-claw member includes a bottom connecting piece installed in the assembly cavity and a plurality of claw member units, with the plurality of claw member units spaced around the inner edge of the bottom connecting piece.

7. The female buckle assembly as described in claim 6, characterized in that: The claw unit includes an upright portion that connects to the bottom connecting piece and a winding portion that winds outward from the upright portion.

8. The female buckle assembly as described in claim 7, characterized in that: The number of claw components is 6, and the 6 claw components are equidistantly arranged in a ring around the inner edge of the bottom connecting piece.

9. The female buckle assembly as described in claim 7, characterized in that: The faceplate includes a circular panel, an annular limiting plate, and a connecting wall connecting the circular panel and the annular limiting plate; The faceplate also includes a gasket, which is fitted between the circular faceplate and the bottom connecting piece, and the bottom connecting piece is fitted between the gasket and the annular limiting plate.

10. A four-piece snap fastener, comprising a male snap assembly and a female snap assembly as described in any one of claims 7-9, characterized in that: The male buckle assembly includes a male buckle and a bottom buckle, and the buckle bead of the male buckle has a groove that mates with the snap fastener.

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