Rotary shoe lace buckle

Abstract

The utility model discloses a kind of rotating shoelace buckles, including base, fixed installation on the base of take-up frame, rotation setting in the take-up frame of take-up reel, with the take-up reel form circumferential linkage's rotating cover and be set between rotating cover and take-up frame's clutch rotating disc, the take-up reel, take-up frame and base are respectively provided with two inner holes for shoelace to pass through, middle hole and outer hole, the take-up reel is formed with the winding cavity for accommodating shoelace between take-up frame;The clutch rotating disc is installed on take-up frame upper end, the clutch rotating disc is provided with elastic arm along circumference, the elastic arm is equipped with pawl, the inner circular surface of rotating cover is uniformly distributed with multiple ratchet teeth matched with the pawl, so that rotating cover can only rotate in one direction.The utility model structure is reasonable and reliable, not only easy to disassemble and assemble, and shoelace's holding force is also greater, and structure stability is better.

Description

Technical Field

[0001] This utility model relates to the field of shoelace buckle technology, and more specifically to a rotating shoelace buckle. Background Technology

[0002] Shoelaces are used to adjust the tightness of shoe uppers and ensure foot comfort. Traditionally, shoelaces have been tightened by tying them in a crisscross knot, which is quite tedious. Currently, there are many types of shoelace buckles on the market that make it easier and faster for users to tighten their shoelaces.

[0003] Utility model patent application CN202321660875.5 discloses a rotating shoelace buckle, including a first base, a base box, a shoelace rotating disc, a clutch rotating disc, and a rotating cover. The first base has symmetrically arranged frames for shoelaces to pass through. The base box is fastened to the first base. The shoelace rotating disc is placed between the base box and the first base. One end of the shoelace rotating disc has a protruding ring with a circumferentially arranged toothed groove. The clutch rotating disc has teeth corresponding to the toothed grooves. The clutch rotating disc has a first locking groove and a circular groove, arranged in a circumferential array, with the circular groove located on one side of the first locking groove. The rotating cover has a first locking block and a cylinder corresponding to the first locking groove and circular groove, arranged in a circumferential array, with the cylinder located on one side of the first locking block. The rotating cover drives the shoelace rotating disc to rotate via the clutch rotating disc.

[0004] However, the structure of this shoelace buckle has the following drawbacks: (1) In this shoelace buckle structure, the first locking block and cylinder on the rotating cover cooperate with the first locking groove and circular groove on the clutch rotating disc to achieve the installation of the rotating cover and the clutch rotating disc. However, the rotating cover is small in size and the internal installation space is small and deep. Installing the rotating disc inside the rotating cover makes its disassembly and assembly operations very inconvenient. (2) The thread hole on the first base of the shoelace buckle is open (this is the case in all shoes on the market). That is, the top is open. When tightening the shoelace, the shoelace is easy to get stuck between the first base and the rotating cover, which causes jamming. This not only results in poor stability, but also affects the gripping force on the shoelace. Utility Model Content

[0005] The purpose of this invention is to provide a rotating shoelace buckle. This invention has a reasonable and reliable structure, is easy to assemble and disassemble, has a greater gripping force on shoelaces, and has better structural stability.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rotating shoelace buckle, comprising a base, a take-up frame fixedly mounted on the base, a take-up wheel rotatably disposed within the take-up frame, a rotating cover forming a circumferential linkage with the take-up wheel, and a clutch rotating disc disposed between the rotating cover and the take-up frame. The take-up wheel, the take-up frame, and the base are respectively provided with two inner holes, a middle hole, and an outer hole for shoelaces to pass through. A winding cavity for accommodating shoelaces is formed between the take-up wheel and the take-up frame. The clutch rotating disc is mounted on the upper end of the take-up frame, and an elastic arm is provided circumferentially on the clutch rotating disc. A pawl is provided on the elastic arm. Multiple ratchet teeth cooperating with the pawl are evenly distributed on the inner circular surface of the rotating cover, so that the rotating cover can only rotate in one direction.

[0007] By adopting the above technical solution, the existing method of mounting the clutch rotary disc on the rotating cover is changed. Instead, the clutch rotary disc is mounted on the upper end of the take-up frame. Thus, the take-up reel and take-up frame can be mounted on the base first, then the clutch rotary disc can be mounted on the upper end of the take-up frame, and finally the rotating cover can be fastened. This assembly operation is more convenient, the structure is more reasonable, and production efficiency can be significantly improved.

[0008] The present invention is further configured such that the upper end of the take-up frame is provided with a plurality of elastic barbs, and the clutch rotary disc is provided with a plurality of locking holes corresponding to the number of elastic barbs. The elastic barbs pass through the corresponding locking holes and press the clutch rotary disc tightly against the upper end of the take-up frame.

[0009] By adopting the above technical solution, the clutch rotary disc and the take-up frame are assembled by a snap-fit ​​method. The connection structure is simple and reliable, and disassembly and assembly are very convenient.

[0010] The present invention is further provided that the clutch rotary disc is provided with a clearance groove at the position corresponding to the upper end of the card hole for the upper end of the elastic barb to be fully embedded.

[0011] By adopting the above technical solution, the space requirements for the connection structure can be reduced, thereby helping to reduce the overall volume.

[0012] The present invention is further configured such that the outer hole is arranged in a closed structure on the periphery of the base.

[0013] By adopting the above technical solution, the closed-out design of the outer hole, compared with the open structure of the existing technology, can prevent the shoelaces from slipping into the gap between the base and the rotating cover when tightening the shoelaces, thereby making the shoelaces subject to greater clamping force from the winding wheel and better structural stability.

[0014] The present invention is further configured such that the outer circular surface of the take-up frame is provided with a plurality of first elastic blocks, and the inner circular surface of the base is provided with a plurality of slots that cooperate with the first elastic blocks.

[0015] By adopting the above technical solution, the cable take-up frame and the base are assembled using a snap-fit ​​method. The connection structure is simple and reliable, and disassembly and assembly are very convenient.

[0016] The present invention is further configured such that the lower end of the take-up frame is provided with a plurality of positioning grooves, and the base is provided with a plurality of positioning protrusions that fit into the positioning grooves.

[0017] By adopting the above technical solution, the take-up frame can be circumferentially limited, further improving the stability of the connection structure between the take-up frame and the base.

[0018] The present invention is further configured such that an upper support ring and a lower support ring are respectively provided at the upper and lower ends of the take-up reel, the lower support ring abuts against the bottom of the base, the upper end of the take-up frame is provided with an inwardly extending limiting flange, the lower end of the limiting flange abuts against the upper end of the upper support ring, and the inner circular surface of the take-up frame is also provided with a plurality of second elastic blocks that abut against the lower end face of the upper support ring.

[0019] By adopting the above technical solution, the assembly of the take-up frame and the base can be completed simultaneously, and the positioning and installation of the take-up reel can be achieved at the same time, making the assembly operation very convenient.

[0020] The present invention is further configured such that the inner end face of the rotating cover is provided with a plurality of first linkage teeth arranged in a circumferential array, and the upper end of the take-up reel is provided with a plurality of second linkage teeth arranged in a circumferential array that engage with the first linkage teeth.

[0021] By adopting the above technical solution, the circumferential linkage or idling of the rotating cover and the take-up reel can be achieved by whether the first linkage tooth on the rotating cover and the second linkage tooth on the take-up reel are engaged.

[0022] The present invention is further configured such that an annular limiting rib is provided on the inner circular surface of the take-up reel, and at least three elastic claws distributed in a circumferential array are provided on the inner end face of the rotating cover. The outer side of the elastic claws fits against the inner circular surface of the take-up reel, and a limiting recess is provided on the outer side of the elastic claws to fit the annular limiting rib.

[0023] By adopting the above technical solution, when the limiting groove of the elastic claw on the rotating cover engages with the annular limiting rib on the inner surface of the take-up reel, the first linkage tooth on the rotating cover and the second linkage tooth on the take-up reel can stably engage, ensuring circumferential linkage between the rotating cover and the take-up reel. When the rotating cover is pulled upwards, causing the limiting groove of the elastic claw on the rotating cover to disengage from the annular limiting rib on the inner surface of the take-up reel, the first linkage tooth on the rotating cover separates from the second linkage tooth on the take-up reel, allowing the take-up reel to rotate freely, at which point the shoelace can be pulled out. The design of the three elastic claws engaging with the inner side of the take-up reel also makes the structure more stable and reliable, and improves structural flexibility.

[0024] The present invention is further configured such that a plurality of limiting protrusions are provided on the inner circular surface of the rotating cover, and a limiting step is provided on the outer circular surface of the take-up frame at a position above the limiting protrusions, which is used to abut against the limiting protrusions when the rotating cover moves up a certain distance, thereby limiting the upper limit position of the rotating cover.

[0025] By adopting the above technical solution, when the rotating cover is pulled up, causing the limiting groove of the elastic claw on the rotating cover to disengage from the annular limiting rib on the inner circle surface of the take-up reel, the rotating cover is limited by the limiting structure to prevent it from completely loosening and falling off, making the structure more reliable. Attached Figure Description

[0026] Figure 1 This is a perspective view of the entire utility model; Figure 2 This is a cross-sectional view of the entire utility model; Figure 3 This is an exploded view of the entire utility model; Figure 4 This is an assembly drawing of the clutch rotary disc and the take-up frame of this utility model; Figure 5 This is a schematic diagram of the separation structure of the clutch rotary disc and the take-up frame of this utility model; Figure 6 This is a schematic diagram of the cooperation structure between the clutch rotary disc and the rotary cover of this utility model.

[0027] In the diagram: 1. Base; 2. Take-up frame; 3. Take-up reel; 4. Rotating cover; 5. Clutch rotary disc; 6. Inner hole; 7. Middle hole; 8. Outer hole; 9. Winding cavity; 10. Elastic arm; 11. Pawl; 12. Racket tooth; 13. Elastic barb; 14. Locking hole; 15. Relief groove; 16. First elastic locking block; 17. Locking groove; 18. Positioning groove; 19. Positioning protrusion; 20. Upper support ring; 21. Lower support ring; 22. Limiting flange; 23. Second elastic locking block; 24. First linkage tooth; 25. Second linkage tooth; 26. Annular limiting rib; 27. Elastic claw; 28. Limiting recess; 29. ​​Limiting protrusion; 30. Limiting step. Detailed Implementation

[0028] 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.

[0029] Example: As attached Figures 1-6The rotating shoelace buckle shown includes a base 1, a take-up frame 2 fixedly mounted on the base 1, a take-up wheel 3 rotatably disposed within the take-up frame 2, a rotating cover 4 forming a circumferential linkage with the take-up wheel 3, and a clutch rotating disk 5 disposed between the rotating cover 4 and the take-up frame 2. The take-up wheel 3, the take-up frame 2, and the base 1 are respectively provided with two inner holes 6, a middle hole 7, and an outer hole 8 for shoelaces to pass through. A winding cavity 9 for accommodating shoelaces is formed between the take-up wheel 3 and the take-up frame 2. The clutch rotating disk 5 is mounted on the upper end of the take-up frame 2. An elastic arm 10 is provided circumferentially on the clutch rotating disk 5. The elastic arm 10 is provided with a pawl 11. Multiple ratchet teeth 12 that cooperate with the pawl 11 are evenly distributed on the inner circular surface of the rotating cover 4, so that the rotating cover 4 can only rotate in one direction. The existing technology has changed the way the clutch rotary disc 5 is installed on the rotating cover 4. Instead, the clutch rotary disc 5 is installed on the upper end of the take-up frame 2. Thus, the take-up wheel 3 and the take-up frame 2 can be installed on the base 1 first, then the clutch rotary disc 5 can be installed on the upper end of the take-up frame 2, and finally the rotating cover 4 can be fastened. This assembly operation is more convenient, the structure is more reasonable, and production efficiency can be significantly improved.

[0030] As attached Figure 4 and attached Figure 5 As shown, the take-up frame 2 has multiple elastic barbs 13 on its upper end, and the upper edge of each elastic barb 13 is provided with a guide slope. The clutch rotary disc 5 has multiple locking holes 14, the number of which corresponds to the number of elastic barbs 13. The elastic barbs 13 pass through the corresponding locking holes 14 and press the clutch rotary disc 5 against the upper end of the take-up frame 2. The clutch rotary disc 5 and the take-up frame 2 are assembled using a snap-fit ​​method, resulting in a simple and reliable connection structure that is very convenient for assembly and disassembly.

[0031] As attached Figure 4 and attached Figure 5 As shown, the clutch rotary disk 5 has a relief groove 15 at the position corresponding to the upper end of the locking hole 14, for the upper end of the elastic barb 13 to be fully embedded. The step formed between the relief groove 15 and the locking hole 14 is used for the elastic barb 13 to abut. This can reduce the space requirements of the connection structure, thereby helping to reduce the overall volume.

[0032] As attached Figure 1 As shown, the outer hole 8 is a closed structure located on the periphery of the base 1. Compared with the open structure of the prior art, the closed design of the outer hole 8 can prevent the shoelace from slipping into the gap between the base 1 and the rotating cover 4 when tightening the shoelace, thereby making the shoelace subject to a greater clamping force from the take-up wheel 3 and improving structural stability.

[0033] The take-up frame 2 has multiple first elastic locking blocks 16 on its outer circular surface, and a guide slope is provided at the lower end of each first elastic locking block 16. The base 1 has multiple locking grooves 17 on its inner circular surface that cooperate with the first elastic locking blocks 16. The take-up frame 2 and the base 1 are assembled by a snap-fit ​​method, which is simple and reliable in connection and very convenient to assemble and disassemble.

[0034] As attached Figure 3 As shown, the lower end of the take-up frame 2 is provided with multiple positioning grooves 18, and the base 1 is provided with multiple positioning protrusions 19 that fit into the positioning grooves 18. This design can limit the circumferential movement of the take-up frame 2, further improving the stability of the connection structure between the take-up frame 2 and the base 1.

[0035] As attached Figure 2 As shown, the upper and lower ends of the take-up reel 3 are integrally provided with an upper support ring 20 and a lower support ring 21, respectively. The lower support ring 21 abuts against the bottom of the base 1. The upper end of the take-up frame 2 is provided with an inwardly extending limiting flange 22. The lower end of the limiting flange 22 abuts against the upper end of the upper support ring 20. The inner circular surface of the take-up frame 2 is also provided with a plurality of second elastic locking blocks 23 that abut against the lower end surface of the upper support ring 20. The lower end of the second elastic locking block 23 is a guide slope, and the upper end is a horizontal surface for limiting. After completing the assembly of the take-up frame 2 and the base 1, the positioning and installation of the take-up reel 3 can be achieved simultaneously, making the assembly operation very convenient.

[0036] As attached Figure 3 and attached Figure 6 As shown, the inner end face of the rotating cover 4 has a plurality of first linkage teeth 24 arranged in a circumferential array, and the upper end of the take-up reel 3 has a plurality of second linkage teeth 25 arranged in a circumferential array that engage with the first linkage teeth 24. The first linkage teeth 24 and the second linkage teeth 25 can adopt a helical tooth structure for better engagement. By determining whether the first linkage teeth 24 on the rotating cover 4 engage with the second linkage teeth 25 on the take-up reel 3, the circumferential linkage or free rotation of the rotating cover 4 and the take-up reel 3 can be achieved.

[0037] As attached Figure 2 and attached Figure 6As shown, the inner circular surface of the take-up reel 3 is provided with an annular limiting rib 26, and both the upper and lower ends of the annular limiting rib 26 are rounded. The inner end face of the rotating cover 4 is provided with at least three elastic claws 27 arranged in a circumferential array, that is, a circular sleeve is separated into multiple elastic claws 27 by setting a groove. The outer side of the elastic claw 27 is in contact with the inner circular surface of the take-up reel 3, and the outer side of the elastic claw 27 is provided with a limiting recess 28 that matches the annular limiting rib 26. The cross-sectional shape of the limiting recess 28 is similar to the cross-sectional shape of the annular limiting rib 26. When the limiting groove of the elastic claw 27 on the rotating cover 4 engages with the annular limiting rib 26 on the inner circular surface of the take-up reel 3, the first linkage tooth 24 on the rotating cover 4 and the second linkage tooth 25 on the take-up reel 3 can stably engage, ensuring circumferential linkage between the rotating cover 4 and the take-up reel 3. When the rotating cover 4 is pulled upwards, causing the limiting groove of the elastic claw 27 on the rotating cover 4 to disengage from the annular limiting rib 26 on the inner circular surface of the take-up reel 3, the first linkage tooth 24 on the rotating cover 4 and the second linkage tooth 25 on the take-up reel 3 separate, allowing the take-up reel 3 to rotate freely, at which point the shoelace can be pulled out. The design of the three elastic claws 27 engaging with the inner side of the take-up reel 3 makes the structure more stable and reliable, and improves structural flexibility.

[0038] As attached Figure 2 and attached Figure 6 As shown, the inner circular surface of the rotating cover 4 is provided with multiple limiting protrusions 29, and the lower end of the limiting protrusions 29 has a guide slope. The outer circular surface of the take-up frame 2 is provided with a limiting step 30 corresponding to the position above the limiting protrusions 29, which is used to abut against the limiting protrusions 29 when the rotating cover 4 moves up a certain distance, thereby limiting the upper limit position of the rotating cover 4. When the rotating cover 4 is pulled up, causing the limiting groove of the elastic claw 27 on the rotating cover 4 to disengage from the annular limiting rib 26 on the inner circular surface of the take-up wheel 3, the limiting structure limits the rotating cover 4, preventing it from completely loosening and falling off, making the structure more reliable.

Claims

1. A rotating shoelace buckle, comprising a base (1), a take-up frame (2) fixedly mounted on the base (1), a take-up wheel (3) rotatably disposed within the take-up frame (2), a rotating cover (4) forming a circumferential linkage with the take-up wheel (3), and a clutch rotating disc (5) disposed between the rotating cover (4) and the take-up frame (2), wherein the take-up wheel (3), the take-up frame (2), and the base (1) are respectively provided with two inner holes (6), a middle hole (7), and an outer hole (8) for shoelaces to pass through, and a winding cavity (9) for accommodating shoelaces is formed between the take-up wheel (3) and the take-up frame (2); characterized in that: The clutch rotary disc (5) is mounted on the upper end of the take-up frame (2). The clutch rotary disc (5) has an elastic arm (10) arranged circumferentially on the upper end. The elastic arm (10) has a pawl (11). The inner circular surface of the rotating cover (4) has a plurality of ratchet teeth (12) that cooperate with the pawl (11), so that the rotating cover (4) can only rotate in one direction. The upper end of the take-up frame (2) has a plurality of elastic barbs (13). The clutch rotary disc (5) has a plurality of locking holes (14) with a number equivalent to the number of elastic barbs (13). The elastic barbs (13) pass through the corresponding locking holes (14) and press the clutch rotary disc (5) against the upper end of the take-up frame (2). The clutch rotary disc (5) has a clearance groove (15) at the position corresponding to the upper end of the locking hole (14) for the upper end of the elastic barb (13) to be fully embedded. The outer hole (8) is arranged in a closed structure on the periphery of the base (1).

2. The rotating shoelace buckle according to claim 1, characterized in that: The outer surface of the take-up frame (2) is provided with a plurality of first elastic blocks (16), and the inner surface of the base (1) is provided with a plurality of slots (17) that cooperate with the first elastic blocks (16).

3. A rotating shoelace buckle according to claim 2, characterized in that: The lower end of the take-up frame (2) is provided with multiple positioning grooves (18), and the base (1) is provided with multiple positioning protrusions (19) that fit into the positioning grooves (18).

4. A rotating shoelace buckle according to claim 1, characterized in that: The take-up reel (3) is provided with an upper support ring (20) and a lower support ring (21) at its upper and lower ends respectively. The lower support ring (21) abuts against the bottom of the base (1). The take-up frame (2) is provided with an inwardly extending limiting flange (22) at its upper end. The lower end of the limiting flange (22) abuts against the upper end of the upper support ring (20). The inner circular surface of the take-up frame (2) is also provided with a plurality of second elastic blocks (23) that abut against the lower end face of the upper support ring (20).

5. A rotating shoelace buckle according to claim 1, characterized in that: The inner end face of the rotating cover (4) has a plurality of first linkage teeth (24) arranged in a circular array, and the upper end of the take-up reel (3) has a plurality of second linkage teeth (25) arranged in a circular array that match the first linkage teeth (24).

6. A rotating shoelace buckle according to claim 5, characterized in that: The inner circular surface of the take-up reel (3) is provided with an annular limiting rib (26), and the inner end face of the rotating cover (4) is provided with at least three elastic claws (27) arranged in a circumferential array. The outer side of the elastic claw (27) is in contact with the inner circular surface of the take-up reel (3), and the outer side of the elastic claw (27) is provided with a limiting recess (28) that matches the annular limiting rib (26).

7. A rotating shoelace buckle according to claim 6, characterized in that: The inner circular surface of the rotating cover (4) is provided with multiple limiting protrusions (29), and the outer circular surface of the take-up frame (2) is provided with a limiting step (30) above the limiting protrusions (29), which is used to abut against the limiting protrusions (29) when the rotating cover (4) moves up a certain distance, thereby limiting the upper limit position of the rotating cover (4).

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