Rope winding and unwinding device and items

Abstract

This application discloses a rope winding and unwinding device and article. The device includes a base, a winding wheel, a ratchet disc, and a knob. The winding wheel is disposed in a first receiving cavity of the base and includes a main body, a first base plate, and a second base plate. The main body is rotatably connected to the base, and the first base plate, the second base plate, and the main body together form a winding area for storing rope. A guide portion is provided on the main body in the winding area to form a fixed path for the rope to move. The ratchet disc is connected to the winding wheel. The knob is rotatably connected to the base and is configured to rotate in a first direction to push the ratchet disc, causing the ratchet disc to release from the base, so that the ratchet disc and the winding wheel can rotate relative to the base, thereby allowing the rope to be released from the winding area along the fixed path formed by the guide portion. This design can avoid the phenomenon of rope getting stuck due to mutual compression and bending caused by mutual entanglement during the release process, thus improving the unwinding efficiency.

Description

Technical Field

[0001] This application relates to the field of rope winding and unwinding technology, and in particular to a rope winding and unwinding device and article. Background Technology

[0002] To make some household items suitable for different users, many household items are designed with drawstrings, such as sneakers, hats, sweatshirts, and gloves. The tightness of the item can be adjusted by tying a knot in the drawstring. However, in daily life, the knotted drawstring is sometimes easy to loosen and come undone. For example, shoelaces can easily become dirty or cause tripping. In particular, very young children cannot tie the drawstring themselves, and the elderly are also very inconvenient to bend over to tie the drawstring due to their physical weakness, which can easily lead to danger.

[0003] Therefore, a rope winding and unwinding device has appeared on the market, which is used to wind up and unwind ropes. The rope can be tightened by rotating the knob. However, when releasing the rope, the ropes are tangled together, causing them to be squeezed and bent, which can easily lead to jamming and low unwinding efficiency. Utility Model Content

[0004] This application provides a rope winding and unwinding device and article, which can solve the problem that in related technologies, when releasing ropes, the ropes are tangled together, causing them to be squeezed and bent, which can easily lead to jamming and result in low rope unwinding efficiency.

[0005] In a first aspect, embodiments of this application provide a rope winding and unwinding device; the rope winding and unwinding device includes a base, a winding wheel, a ratchet disc, and a knob. The base has a first receiving cavity, a first threading hole for threading a rope, and a second threading hole. The first threading hole is used to fix one end of the rope, and the second threading hole communicates with the first receiving cavity. The winding wheel is disposed in the first receiving cavity and includes a main body, a first base plate, and a second base plate. The main body is rotatably connected to the base. The first base plate and the second base plate are disposed on the main body and spaced apart along the rotation axis of the winding wheel. The first base plate, the second base plate, and the main body together form a single unit. The base is enclosed to form a winding area for storing rope. The main body of the winding area is provided with a fixing part and a guiding part. The fixing part is used to fix the other end of the rope, and the guiding part is used to form a fixed path for the rope to move. A pawl is located in the first receiving cavity and connected to the winding wheel. A knob is located on the side of the opening of the first receiving cavity of the base. The knob is rotatably connected to the base. The knob is configured to rotate in a first direction to push the pawl, so that the pawl is unlocked to the base, so that the pawl and the winding wheel can rotate relative to the base, thereby allowing the rope to be released from the winding area along the fixed path formed by the guiding part.

[0006] Secondly, embodiments of this application provide an article; the article includes a first part, a second part, a rope, and the aforementioned rope winding and unwinding device, the rope winding and unwinding device being used to tighten or release the rope to tighten or loosen the first part and the second part.

[0007] Based on the rope winding and unwinding device and article according to the embodiments of this application, by designing a guide part on the main body of the winding area, the guide part is used to form a fixed path for the rope to move. The guide part can neatly arrange the rope on the main body of the winding wheel, avoiding the rope from getting tangled or knotted during winding. By designing a guide part on the main body of the winding area, the guide part can guide the rope to move along the formed fixed path, making the rope move more smoothly during release. This can avoid the phenomenon of the rope getting stuck due to mutual compression and bending caused by mutual tangling during release, improve the unwinding efficiency, and reduce device failures caused by rope tangling. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the rope winding and unwinding device in one embodiment of this application;

[0010] Figure 2 This is a schematic diagram of the rope release device in one embodiment of the present application, showing the rope being released from the winding area.

[0011] Figure 3 This is an exploded view of the rope winding and unwinding device in one embodiment of this application from a first perspective.

[0012] Figure 4 This is an exploded structural diagram of a rope winding and unwinding device in one embodiment of this application, viewed from a second perspective.

[0013] Figure 5 This is a schematic diagram of the winding wheel in one embodiment of the present application from a first-view perspective;

[0014] Figure 6 This is a schematic diagram of the winding wheel in one embodiment of this application from a second perspective;

[0015] Figure 7 This is a schematic diagram of the winding wheel in one embodiment of this application;

[0016] Figure 8This is a partial cross-sectional structural schematic diagram of a rope winding and unwinding device in one embodiment of this application;

[0017] Figure 9 This is a half-sectional schematic diagram of the rope winding and unwinding device after rotating the knob in a first direction according to one embodiment of this application;

[0018] Figure 10 This is a half-sectional schematic diagram of the rope winding and unwinding device after rotating the knob in the second direction in one embodiment of this application;

[0019] Figure 11 This is a schematic diagram of the ratchet disk in one embodiment of this application;

[0020] Figure 12 This is a schematic diagram of the structure of the knob in one embodiment of this application;

[0021] Figure 13 This is a structural diagram of a shoe according to one embodiment of this application;

[0022] Figure 14 This is a structural diagram of a hat, one embodiment of the present application;

[0023] Figure 15 This is a structural schematic diagram of a glove according to one embodiment of this application;

[0024] Figure 16 This is a structural schematic diagram of a medical protective garment according to one embodiment of this application;

[0025] Figure 17 This is a schematic diagram of the structure of a storage device according to one embodiment of this application.

[0026] Reference numerals: 1. Rope winding device; 10. Base; 10a. First receiving cavity; 10b. First threading hole; 10c. Second threading hole; 11. Base plate; 12. First side plate; 13. Racket part; 14. Fixing post; 141. Cylinder; 142. Flange; 20. Winding wheel; 20a. Winding area; 21. Main body; 22. First base plate; 22a. Receiving cavity; 23. Second base plate; 24. Fixing part; 25. Guiding part; 251. Wire groove; 2511. First groove segment; 2512 2513. Second transition groove section; 2514. Second transition groove section; 26. Second driving component; 27. Third driving component; 28. Positioning pin; 30. Pawl disc; 30a. Positioning hole; 31. Pawl arm; 32. Connecting ring; 40. Knob; 40a. Second receiving cavity; 41. Top plate; 42. First driving component; 43. Second side plate; 44. Anti-slip texture; 50. Control component; 60. Limiting component; 2. First part; 3. Second part; M. First direction; N. Second direction. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0028] Please see Figures 1-2 Firstly, this application proposes a rope retraction device 1, which can be used, but is not limited to, in items such as shoes, hats, gloves, helmets, medical protective gear, storage devices, and ski protective gear. With the help of ropes, such items can be tightened and loosened. It is simple and convenient to use, especially for the elderly, children, patients, or in special scenarios.

[0029] like Figures 1-5 As shown, the rope winding and unwinding device 1 includes a base 10, a winding wheel 20, a ratchet disc 30, and a knob 40.

[0030] The base 10 serves as the base of the rope winding and unwinding device 1, and is used to support components such as the winding wheel 20, the ratchet disc 30, and the knob 40. The specific material of the base 10 is not limited here, and the designer can make a reasonable choice according to actual needs. For example, the material of the base 10 can be, but is not limited to, plastic, silicone, alloy, etc.

[0031] The base 10 has a first receiving cavity 10a, a first threading hole 10b for threading a rope, and a second threading hole 10c. The first threading hole 10b is used to fix one end of the rope, and the second threading hole 10c communicates with the first receiving cavity 10a. The base 10 includes a base plate 11 and a first side plate 12 disposed on one side of the base plate 11. The base plate 11 and the first side plate 12 enclose the first receiving cavity 10a. The inner surface of the first side plate 12 is provided with a ratchet portion 13, which is arranged around the inner surface of the first side plate 12. The first threading hole 10b and the second threading hole 10c are disposed on the first side plate 12. Specifically, the first threading hole 10b is used to fix one end of the rope, the middle part of the rope passes through the second threading hole 10c, and the other end of the rope is fixed to the fixing part 24 (described below) of the winding reel 20. The end of the rope fixed to the first threading hole 10b can be knotted or sintered to achieve relative fixation between it and the first side plate 12, thus preventing the rope from detaching from the first threading hole 10b. A cavity is also provided in the area of ​​the first side plate 12 adjacent to the first threading hole 10b to accommodate the knotted or sintered portion of the rope end. Alternatively, the end of the rope fixed to the first threading hole 10b can also be fixed to the first side plate 12 by using a snap-fit ​​or a pin.

[0032] The winding wheel 20 is used to wind and unwind the rope. The winding wheel 20 is located in the first receiving cavity 10a of the base 10. The winding wheel 20 includes a main body 21, a first base plate 22 and a second base plate 23.

[0033] The main body 21 is rotatably connected to the base 10.

[0034] The first substrate 22 and the second substrate 23 are disposed on the main body 21 and are spaced apart along the rotation axis of the winding wheel 20. The first substrate 22, the second substrate 23 and the main body 21 together form a winding area 20a for storing the rope.

[0035] The main body 21 located in the winding area 20a is provided with a fixing part 24 and a guiding part 25. The fixing part 24 is used to fix the other end of the rope, and the guiding part 25 is used to form a fixed path for the rope to move.

[0036] The ratchet disc 30 serves as a locking element of the rope winding device 1, and is used to engage with the ratchet portion 13 of the base 10 to lock onto the base 10, thereby restricting the rotation of the winding wheel 20 relative to the base 10.

[0037] The pawl disc 30 is disposed within the first receiving cavity 10a of the base 10 and connected to the winding reel 20. The pawl disc 30 includes a pawl arm 31 (e.g., ...). Figure 8 As shown, the pawl arm 31 can move along the ratchet portion 13 to control the length of the rope to be taken in and released; when the pawl arm 31 abuts against the ratchet portion 13, the pawl disc 30 and the winding wheel 20 are stationary relative to the base 10; when the pawl arm 31 disengages from the ratchet portion 13, the pawl disc 30 and the winding wheel 20 can rotate relative to the base 10.

[0038] The knob 40 serves as the release mechanism of the rope winding and unwinding device 1. The knob 40 is located on the side of the opening of the first receiving cavity 10a of the base 10. The knob 40 is rotatably connected to the base 10 and is suitable for rotating in a preset direction under the action of external force.

[0039] The knob 40 is configured to rotate in a first direction M to push against the pawl disc 30, causing the pawl disc 30 to release from the base 10, so that the pawl disc 30 and the winding reel 20 can rotate relative to the base 10, thereby allowing the rope to be released from the winding area 20a along the fixed path formed by the guide portion 25. The first direction M is one of the aforementioned preset directions (i.e., the preset directions include the first direction M). The knob 40 includes a top plate 41 (e.g., ...). Figure 12 (as shown) and the first drive member 42 (as shown) located on the top plate 41 facing the base 10. Figure 12As shown, during the rotation of knob 40 in the first direction M, the first driving member 42 pushes against the pawl arm 31 and disengages the pawl arm 31 from the ratchet portion 13. At this time, the pawl disc 30 is released from the base 10. The first driving member 42 can also drive the winding wheel 20 to rotate relative to the base 10 (the pawl disc 30 rotates relative to the base 10 along with the winding wheel 20, and the pawl disc 30 and the winding wheel 20 remain relatively stationary), thereby allowing the rope to be released from the winding area 20a along the fixed path formed by the guide portion 25. The first driving member 42 can be a driving block, a driving plate, or a driving rod.

[0040] Based on the rope winding and unwinding device 1 in this application embodiment, by designing a guide part 25 on the main body 21 located in the winding area 20a, the guide part 25 is used to form a fixed path for the rope to move. The guide part 25 can neatly arrange the rope on the main body 21 of the winding wheel 20, avoiding the rope from getting tangled or knotted during the winding process. By designing the guide part 25 on the main body 21 located in the winding area 20a, the guide part 25 can guide the rope to move along the formed fixed path, making the rope move more smoothly during the release process. This can avoid the phenomenon of the rope getting stuck due to mutual compression and bending caused by mutual tangling during the release process, improve the unwinding efficiency, and reduce device failures caused by rope tangling.

[0041] like Figure 6 As shown, when the guide part 25 is a virtual structure formed on the main body 21, the guide part 25 is a groove 251 provided on the main body 21. The groove 251 is used to form a fixed path for the movement of the rope. By designing the groove 251 on the main body 21, the groove 251 can neatly arrange the rope on the main body 21 of the winding wheel 20, avoiding the rope from getting tangled or knotted during the winding process. By designing the groove 251 on the main body 21, the groove 251 can guide the rope to move along the formed fixed path, making the rope move more smoothly during the release process. This can prevent the rope from getting stuck due to mutual compression and bending caused by mutual tangling during the release process, improve the release efficiency, and reduce device failures caused by rope tangling.

[0042] Specifically, the wire groove 251 includes a first groove segment 2511 and a second groove segment 2512 arranged around the rotation axis of the wire reel 20, with the first groove segment 2511 being closer to the fixing part 24 than the second groove segment 2512. The specific design details of the first groove segment 2511 and the second groove segment 2512 may include, but are not limited to, one or more of the following embodiments.

[0043] like Figure 7As shown, in one embodiment, along the extension direction of the groove 251, the length of the first groove segment 2511 is L1, and the length of the second groove segment 2512 is L2, and L1 and L2 satisfy the condition: 0.75≤L1 / L2≤0.875. The specific value of L1 / L2 can be, but is not limited to, 0.75, 0.78, 0.80, 0.82, 0.84, 0.86, or 0.875, etc. By rationally designing the length L1 of the first groove segment 2511 and the length L2 of the second groove segment 2512, and ensuring that the lengths L1 of the first groove segment 2511 and L2 of the second groove segment 2512 satisfy the above-mentioned conditions, it is possible to ensure that the groove 251 has sufficient space for rope arrangement and that the rope release is smooth. When L1 / L2 < 0.75, the length of the first groove segment 2511 is too small, resulting in insufficient fixed length for layered stacking of ropes, easy rope rebound, and easy tangling during rope release, making it impossible to release the rope smoothly. When L1 / L2 > 0.875, the groove 251 cannot provide sufficient winding space for the rope, making the winding area 20a unable to accommodate a rope of sufficient length.

[0044] like Figure 7 As shown, in another embodiment, along the direction parallel to the rotation axis of the winding wheel 20, the width of the first groove segment 2511 is D1, and the width of the second groove segment 2512 is D2, and D1 and D2 satisfy the condition: 0.4≤D1 / D2≤0.5. The specific values ​​of D1 / D2 can be, but are not limited to, 0.4, 0.41, 0.42, 0.43, 0.44, 0.45, 0.46, 0.47, 0.48, 0.49, or 0.5, etc. By rationally designing the width D1 of the first groove segment 2511 and the width D2 of the second groove segment 2512, and ensuring that the widths D1 of the first groove segment 2511 and D2 of the second groove segment 2512 satisfy the above-mentioned conditions, it is possible to ensure that the groove 251 has sufficient space for the arrangement of ropes and to ensure that the ropes are neatly stacked in layers within the groove 251. When D1 / D2 < 0.4, the width of the first groove segment 2511 is too small, making it impossible for the groove 251 to provide sufficient space for the ropes to be stacked in layers. When D1 / D2 > 0.5, it is not conducive to the layered stacking of ropes within the groove 251, which increases the risk of the ropes becoming entangled.

[0045] It should be noted that the values ​​of L1, L2, D1, and D2 are not isolated but are ordered, coordinated, and interconnected. Any change in any data will affect the other data, but the ratio must satisfy the conditions 2 / 5≤D1 / D2≤1 / 2 and 3 / 4≤L1 / L2≤7 / 8 to achieve the best effect of smooth exit.

[0046] like Figure 7As shown, in another embodiment, the first groove segment 2511 is an arc-shaped groove segment, and the second groove segment 2512 is a straight groove segment. By designing the first groove segment 2511, which is closer to the fixing part 24, as an arc-shaped groove segment, the arc-shaped groove segment can smoothly transition the direction of the rope and prevent the rope from being scratched during winding and unwinding. By designing the second groove segment 2512, which is farther away from the fixing part 24, as a straight groove segment, the straight groove segment makes it easier to pull the rope into the groove 251 during winding. By designing the combination of arc-shaped and straight groove segments, the direction of the rope in the groove 251 is clearer, which can further improve the neatness of the rope arrangement in the groove 251 and prevent the rope from tangling and knotting.

[0047] More specifically, such as Figure 6 As shown, the wire groove 251 further includes a first transition groove section 2513 and a second transition groove section 2514; the first transition groove section 2513 is located between the fixing part 24 and the first groove section 2511, and the first transition groove section 2513 is connected to the fixing part 24 and the first groove section 2511; the second transition groove section 2514 is located between the first groove section 2511 and the second groove section 2512, and the second transition groove section 2514 is connected to the first groove section 2511 and the second groove section 2512. Specific design details regarding the first transition groove section 2513 and the second transition groove section 2514 may include, but are not limited to, one or more of the following embodiments.

[0048] In one embodiment, the width of the first transition groove section 2513 gradually increases in a direction parallel to the rotation axis of the winding wheel 20, from the side near the fixing part 24 to the side away from the fixing part 24. This guides and limits the rope near the fixing part 24, facilitating the orderly winding and unwinding of the rope.

[0049] In another embodiment, the width of the second transition groove segment 2514 gradually increases along a direction parallel to the rotation axis of the winding wheel 20, from the side closer to the fixing part 24 to the side farther away from the fixing part 24. The first groove segment 2511 and the second groove segment 2512 are connected by the second transition groove segment 2514, which can achieve a smooth transition and reduce the risk of rope bending and breakage.

[0050] When the guide portion 25 is a solid structure provided on the main body 21, the guide portion 25 consists of a plurality of guide protrusions (not shown in the figure) provided on the main body 21, with adjacent guide protrusions spaced apart to form a fixed path for the movement of the rope. The guide protrusions may be detachably and fixedly connected to the main body 21 by at least one of the following methods: screwing, snap-fitting, or plugging; or the guide protrusions may be non-detachably and fixedly connected to the main body 21 by, but not limited to, gluing, riveting, injection molding, or 3D printing. By designing multiple guide protrusions on the main body 21, with the gap between two adjacent guide protrusions used to accommodate the rope, the rope can be neatly arranged on the main body 21 of the winding wheel 20 during the winding process, avoiding the rope from tangling or knotting together. By designing multiple guide protrusions on the main body 21, with the gap between two adjacent guide protrusions to form a fixed path for the rope to move, the rope moves along the formed fixed path, making the rope move more smoothly during the release process. This can avoid the phenomenon of the rope getting stuck due to mutual compression and bending caused by mutual tangling during the release process, improving the unwinding efficiency and reducing device failures caused by rope tangling.

[0051] Furthermore, such as Figure 5 and Figure 6 As shown, the first substrate 22 is closer to the opening of the first receiving cavity 10a than the second substrate 23, and a receiving cavity 22a is provided on the side of the first substrate 22 away from the second substrate 23. The fixing part 24 is a third threading hole provided on the main body 21, which passes through the main body 21 and the first substrate 22. The third threading hole is used to fix the other end of the rope, and the receiving cavity 22a is used to accommodate the knotted or sintered part of the rope end. The knotting or sintering process is used to fix the relative position between the other end of the rope and the first substrate 22 to prevent the rope from coming out of the third threading hole. Of course, the other end of the rope fixed to the third threading hole can also be fixed relative to the first substrate 22 by snap-fit ​​or pin insertion. By designing a third threading hole that passes through the main body 21 and the first substrate 22 of the winding area 20a, it is convenient to place the other end of the rope on the winding wheel 20. At the same time, a receiving cavity 22a is provided on the side of the first substrate 22 away from the second substrate 23 to facilitate the accommodation of the knotted or sintered part of the rope end, thus making full use of the space on the winding wheel 20. In other embodiments, the fixing part 24 may also be a positioning post (not shown in the figure) provided on the main body 21, with the other end of the rope wound around the positioning post.

[0052] like Figure 5 and Figure 8As shown, the knob 40 is configured to rotate in the second direction N to push the winding wheel 20, so that the pawl disc 30 and the winding wheel 20 can rotate relative to the base 10, thereby allowing the rope to be stored in the winding area 20a along the fixed path formed by the guide portion 25. Here, the second direction N is opposite to the first direction M, and the second direction N is another of the aforementioned preset directions (that is, the preset directions also include the second direction N). The winding reel 20 also includes a second driving member 26, which is located on the side of the first substrate 22 away from the second substrate 23. When the knob 40 is rotated in the second direction N, the first driving member 42 pushes against the second driving member 26, and the second driving member 26 is forced to rotate the first substrate 22 connected to it, thereby causing the entire winding reel 20 to rotate relative to the base 10 (at this time, the pawl disk 30 will rotate relative to the base 10 along with the winding reel 20, and the pawl arm 31 of the pawl disk 30 will continuously collide with the ratchet portion 13 of the base 10 and make a "tap tap tap" sound), so that the rope can be stored in the winding area 20a along the fixed path formed by the guide portion 25. The second driving member 26 can be a driving block or a driving plate.

[0053] The winding reel 20 also includes a third drive member 27, which is located on the side of the first substrate 22 away from the second substrate 23. The third drive member 27 and the second drive member 26 are arranged around the rotation axis of the winding reel 20. The fixed end of the pawl arm 31 is close to the second drive member 26, and the movable end of the pawl arm 31 is close to the third drive member 27. When the knob 40 is rotated in the first direction M, the first drive member 42 pushes against the pawl arm 31 and disengages the pawl arm 31 from the ratchet portion 13. At this time, the pawl disc 30 is released from the base 10. The first drive member 42 pushes against the third drive member 27 to drive the winding reel 20 to rotate relative to the base 10, so that the rope can be released from the winding area 20a along the fixed path formed by the guide portion 25. The third drive member 27 can be a drive block or a drive plate.

[0054] Furthermore, such as Figures 8-10 As shown, the rope winding and unwinding device 1 also includes a control member 50. The control member 50 is located between the main body 21 and the base 10, and the main body 21 is rotatably connected to the base 10 through the control member 50.

[0055] When the knob 40 is rotated in the first direction M, the control element 50 can move away from the opening of the first receiving cavity 10a along the rotation axis of the winding wheel 20 to limit the rotation distance of the winding wheel 20 and thus control the total length of the released rope. When the knob 40 is rotated in the first direction M, the control element 50 moves between the bottom plate 11 and the top plate 41 in the direction from the top plate 41 toward the bottom plate 11 to limit the rotation distance of the winding wheel 20 and thus control the total length of the released rope.

[0056] When the knob 40 is rotated in the second direction N, the control member 50 can move along the rotation axis of the winding wheel 20 toward the opening of the first receiving cavity 10a to limit the rotation distance of the winding wheel 20 and thus control the total length of the stored rope. When the knob 40 is rotated in the second direction N, the control member 50 moves between the bottom plate 11 and the top plate 41 in the direction from the bottom plate 11 toward the top plate 41 to limit the rotation distance of the winding wheel 20 and thus control the total length of the stored rope.

[0057] Rotating the knob 40 drives the winding wheel 20 to rotate relative to the base 10, thereby storing or releasing the rope in or from the winding area 20a. A ratchet arm 31 and a ratchet tooth 13 are designed to engage with each other, limiting the rotation distance of the winding wheel 20 by the ratchet tooth 13. This allows for precise control of the length of rope stored or released by the winding wheel 20; each rotation of the knob 40 stores or releases a certain length of rope. Continuous rotation of the knob 40 allows for continuous storage or release of rope. Furthermore, a control element 50 is positioned between the winding wheel 20 and the base 10. The total movement distance of the control element 50 is limited by the base plate 11 and the top plate 41, thereby controlling the total rotation distance of the winding wheel 20 relative to the base 10 and ultimately controlling the total length of the rope during storage or release.

[0058] like Figure 3 , Figure 9 and Figure 10As shown, the base 10 also includes a fixing post 14, which is located on the side of the base plate 11 facing the first receiving cavity 10a. The fixing post 14 includes a cylinder 141 and a flange 142. The flange 142 is located on the outer wall of the cylinder 141 and is an elongated protrusion on the outer wall of the cylinder 141. The elongated protrusion extends in a direction parallel to the rotation axis of the winding wheel 20. The control component 50 includes a threaded sleeve. The inner wall of the threaded sleeve is provided with an elongated groove that mates with the elongated protrusion. The outer wall of the threaded sleeve is provided with external threads. The threaded sleeve is fitted onto the fixing post 14, and the elongated protrusion is embedded in the elongated groove. The main body 21 of the winding wheel 20 has a cylindrical structure. The inner wall of the main body 21 is provided with an internal thread that matches the external thread of the threaded sleeve. The main body 21 is fitted onto the threaded sleeve, and the internal thread of the main body 21 is threadedly engaged with the external thread of the threaded sleeve. When the knob 40 drives the winding wheel 20 to rotate relative to the base 10, the winding wheel 20 can drive the threaded sleeve to move relative to the fixing post 14 of the base 10 along the rotation axis of the winding wheel 20. The threaded sleeve and the fixing post 14 are engaged by a long groove and a long protrusion to restrict the rotation of the threaded sleeve relative to the fixing post 14, so that the threaded sleeve can only move relative to the fixing post 14 along the rotation axis of the winding wheel 20. When the threaded sleeve moves relative to the fixing post 14 of the base 10 to abut against the top plate 41 or the bottom plate 11, the top plate 41 or the bottom plate 11... The movement of the threaded sleeve on the rotation axis of the winding wheel 20 is restricted, which in turn restricts the rotation of the winding wheel 20 relative to the base 10, keeping the winding wheel 20 stationary relative to the base 10. At this time, it is impossible to take in or release the rope, thereby achieving accurate control of the total length of the rope that can be taken in or released. By designing the control component 50 as a threaded sleeve, the structure is simple and has high operational stability. The method of controlling the total length of the rope is simple, the production process is also simple, and in particular, it can achieve rapid assembly, effectively reducing production costs and thus improving product competitiveness.

[0059] like Figure 3 , Figure 4 , Figure 9 and Figure 10As shown, the rope winding and unwinding device 1 also includes a limiting member 60, which is connected to the end of the fixing post 14 away from the base plate 11. The limiting member 60 is used to limit the movement stroke of the threaded sleeve relative to the fixing post 14 along the rotation axis of the winding wheel 20 toward the opening of the first receiving cavity 10a. The limiting member 60 can be a limiting pin, in which case the limiting pin is interference-fitted with the inner wall surface of the cylinder 141 to achieve relative fixation between the limiting pin and the cylinder 141. In this embodiment, the limiting member 60 is a limiting screw, in which case the inner wall surface of the cylinder 141 is threaded, and the limiting screw is threadedly connected to the thread to achieve relative fixation between the limiting screw and the cylinder 141. When the knob 40 is rotated in the second direction N, the threaded sleeve moves relative to the fixing post 14 of the base 10 along the rotation axis of the winding wheel 20 toward the opening of the first receiving cavity 10a until the threaded sleeve moves to abut against the limiting member 60. The limiting member 60 restricts the movement of the threaded sleeve on the rotation axis of the winding wheel 20, and in turn restricts the rotation of the winding wheel 20 relative to the base 10, so that the winding wheel 20 remains stationary relative to the base 10. At this time, the rope cannot be stored, and the length of the rope stored in the winding area 20a reaches its maximum. By designing the limiting member 60, the limiting member 60 can prevent the threaded sleeve from directly contacting the top plate 41 of the knob 40, and prevent the knob 40 from being damaged due to excessive force, thus playing a good protective role for the knob 40.

[0060] like Figure 8 and Figure 11 As shown, the ratchet disk 30 is located on the side of the first substrate 22 opposite to the second substrate 23. The ratchet disk 30 also includes a connecting ring 32, which is sleeved on the main body 21. One end of the ratchet arm 31 is fixedly connected to the connecting ring 32, and a positioning hole 30a is provided at the connection position between the ratchet arm 31 and the connecting ring 32. The winding wheel 20 also includes a positioning pin 28, which is located on the side of the first substrate 22 opposite to the second substrate 23 and adjacent to the second driving member 26. The positioning pin 28 is inserted into the positioning hole 30a. In this embodiment, there are three ratchet arms 31, and the three ratchet arms 31 are evenly distributed along the circumference of the connecting ring 32.

[0061] like Figure 12 As shown, the knob 40 also includes a second side plate 43 circumferentially arranged around and connected to the top plate 41, the top plate 41 and the second side plate 43 together forming a second receiving cavity 40a; the first driving member 42 is located within the second receiving cavity 40a. The outer surface of the second side plate 43 is provided with anti-slip texture 44, which helps to increase the friction between the user's hand and the knob 40, making it easier for the user to turn the knob 40. The outer surface of the top plate 41 may also be provided with an indicator arrow to indicate the direction of turning the knob 40 when storing the product's cord.

[0062] In this embodiment, the first direction M is set as counterclockwise and the second direction N is set as clockwise. When the knob 40 is rotated counterclockwise, the first driving member 42 pushes against the pawl arm 31 and disengages the pawl arm 31 from the ratchet tooth 13. At this time, the pawl disc 30 is released from the base 10, and the first driving member 42 pushes against the third driving member 27 to drive the winding wheel 20 to rotate relative to the base 10. This allows the rope to be released from the winding area 20a along the fixed path formed by the guide part 25. At this time, the threaded sleeve moves relative to the fixing post 14 of the base 10 along the rotation axis of the winding wheel 20 away from the opening of the first receiving cavity 10a. Figure 9 As shown, when the threaded sleeve moves to contact the base plate 11, the length of the rope released from the winding area 20a reaches its maximum. When the knob 40 is turned clockwise, the first drive member 42 pushes against the second drive member 26, and the second drive member 26 is forced to rotate the first base plate 22 connected to it, causing the entire winding wheel 20 to rotate relative to the base 10. This allows the rope to be stored in the winding area 20a along the fixed path formed by the guide part 25. At this time, the threaded sleeve moves relative to the fixing post 14 of the base 10 along the rotation axis of the winding wheel 20 toward the opening of the first receiving cavity 10a, as shown. Figure 10 As shown, when the threaded sleeve moves to abut against the limit screw, the length of the rope stored in the winding area 20a reaches its maximum.

[0063] Please see Figures 13-17 Secondly, this application proposes an article comprising a first part 2, a second part 3, a rope, and a rope winding / unwinding device 1 for tightening or releasing the rope to tighten or loosen the first part 2 and the second part 3.

[0064] The items may include, but are not limited to, shoes, hats, gloves, medical protective gear, helmets, storage devices, ski protective gear, bags, and clothing.

[0065] For example, such as Figure 13 As shown, when the item is a shoe, the shoe includes a shoe body, shoelaces, and a cord retraction device 1. The shoelaces serve as cords, and the cord retraction device 1 is used to retract or extend the shoelaces. The cord retraction device 1 can be fixed to the shoe body. One side of the shoe body is designated as a first part 2, and the other side as a second part 3. There is a gap between the first part 2 and the second part 3. The shoelaces pass through the first part 2 and the second part 3. The user can tighten the shoelaces by adjusting the cord retraction device 1, thereby tightening the gap between the first part 2 and the second part 3 to complete the shoe-wearing operation. The user can also release the shoelaces by adjusting the cord retraction device 1, thereby releasing the gap between the first part 2 and the second part 3 to complete the shoe-removing operation.

[0066] It is understandable that using the above-mentioned rope winding and unwinding device 1 to wind and unwind shoelaces is simple to operate and reduces the number of components in the overall rope winding and unwinding device 1. This not only reduces assembly costs and improves assembly efficiency, but also makes the overall structure compact, which is conducive to realizing the miniaturization and lightweight design of the rope winding and unwinding device 1. Furthermore, the fewer components can also improve the stability of the overall structure and improve the reliability and service life of the rope winding and unwinding device 1.

[0067] For example, such as Figure 14 As shown, when the item is a hat, the hat includes a hat body, a hat cord, and a cord retraction device 1. The hat cord serves as a cord for tightening or loosening the hat body, and the cord retraction device 1 is used to retract or release the hat cord. The cord retraction device 1 can be fixed to the hat body. The two sides of the hat body are a first part 2 and a second part 3, respectively. The hat cord connects the first part 2 and the second part 3. The user can tighten the hat cord by adjusting the cord retraction device 1, thereby tightening the hat body; the user can also loosen the hat cord by adjusting the cord retraction device 1, thereby loosening the hat body.

[0068] It is understandable that using the above-mentioned cord winding and unwinding device 1 to wind and unwind the hat cord is simple to operate and results in a smaller number of overall components. This not only reduces assembly costs and improves assembly efficiency, but also makes the overall structure compact, which is conducive to realizing the miniaturization and lightweight design of the cord winding and unwinding device 1. Furthermore, the smaller number of components can also improve the stability of the overall structure, and improve the reliability and service life of the cord winding and unwinding device 1.

[0069] For example, such as Figure 15 As shown, when the item is a glove, the glove includes a glove body, glove cords, and cord retraction device 1. The glove cords serve as cords for tightening or loosening the opening of the glove body, and the cord retraction device 1 is used to retract or release the glove cords. The cord retraction device 1 can be fixed to the glove body, which has a first part 2 and a second part 3. The user can tighten the glove cords by adjusting the cord retraction device 1, thereby tightening the opening of the glove body; the user can also loosen the glove cords by adjusting the cord retraction device 1, thereby releasing the opening of the glove body.

[0070] It is understandable that using the above-mentioned rope winding and unwinding device 1 to wind and unwind glove ropes is simple to operate and results in fewer overall components. This not only reduces assembly costs and improves assembly efficiency, but also makes the overall structure compact, which is conducive to achieving miniaturization and lightweight design of the rope winding and unwinding device 1. Furthermore, fewer components can also improve the stability of the overall structure, and improve the reliability and service life of the rope winding and unwinding device 1.

[0071] For example, such as Figure 16As shown, when the item is medical protective gear, the medical protective gear includes a medical protective gear body, a medical protective gear cord, and a cord retraction device 1. The medical protective gear cord serves as a cord for tightening or releasing the opening of the medical protective gear body, and the cord retraction device 1 is used to retract or release the medical protective gear cord. The medical protective gear may include, but is not limited to, arm protectors (such as sleeves), leg protectors (such as knee pads and wrist guards), waist protectors (such as belts), and neck protectors (such as neck warmers). The medical protective gear body has a first part 2 and a second part 3. The user can tighten the medical protective gear cord by adjusting the cord retraction device 1, thereby tightening the opening of the medical protective gear body. The user can also release the medical protective gear cord by adjusting the cord retraction device 1, thereby releasing the opening of the medical protective gear body.

[0072] It is understandable that using the above-mentioned rope winding and unwinding device 1 to wind and unwind medical protective ropes is simple to operate and reduces the number of components in the overall rope winding and unwinding device 1. This not only reduces assembly costs and improves assembly efficiency, but also makes the overall structure compact, which is conducive to realizing the miniaturization and lightweight design of the rope winding and unwinding device 1. Furthermore, the fewer components can also improve the stability of the overall structure and improve the reliability and service life of the rope winding and unwinding device 1.

[0073] For example, such as Figure 17 As shown, when the item is a storage device, the storage device includes a storage body, a storage strap, and a cord retraction device 1. The storage strap serves as a cord for tightening or releasing the storage body, and the cord retraction device 1 is used to retract or extend the storage strap. The cord retraction device 1 can be fixed to the storage body, which has a first part 2 and a second part 3 with a gap between them. The storage strap passes through the first part 2 and the second part 3. The user can tighten the storage strap by adjusting the cord retraction device 1, thereby tightening the gap between the first part 2 and the second part 3 to close the opening of the storage body. The user can also release the storage strap by adjusting the cord retraction device 1, thereby releasing the gap between the first part 2 and the second part 3 to open the opening of the storage body. The storage device can be a backpack, but is not limited to backpacks.

[0074] It is understandable that using the above-mentioned rope winding and unwinding device 1 to wind and unwind the storage tape is simple to operate and reduces the number of components in the overall rope winding and unwinding device 1. This not only reduces assembly costs and improves assembly efficiency, but also makes the overall structure compact, which is conducive to realizing the miniaturization and lightweight design of the rope winding and unwinding device 1. Furthermore, the fewer components can also improve the stability of the overall structure and improve the reliability and service life of the rope winding and unwinding device 1.

[0075] In the accompanying drawings of this embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this application, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the accompanying drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0076] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cord winding and unwinding device, characterized by include: The base has a first receiving cavity, a first threading hole for threading a rope, and a second threading hole. The first threading hole is used to fix one end of the rope, and the second threading hole is connected to the first receiving cavity. A winding wheel is disposed in the first receiving cavity. The winding wheel includes a main body, a first base plate, and a second base plate. The main body is rotatably connected to the base. The first base plate and the second base plate are disposed on the main body and spaced apart along the rotation axis of the winding wheel. The first base plate, the second base plate, and the main body together form a winding area for storing rope. The main body located in the winding area is provided with a fixing part and a guiding part. The fixing part is used to fix the other end of the rope, and the guiding part is used to form a fixed path for the rope to move. A ratchet disc is disposed within the first receiving cavity and connected to the winding reel; A knob is located on one side of the opening of the first receiving cavity of the base and is rotatably connected to the base; the knob is configured to rotate in a first direction to push against the pawl disc, so that the pawl disc is released from the base, so that the pawl disc and the winding wheel can rotate relative to the base, thereby allowing the rope to be released from the winding area along the fixed path formed by the guide portion.

2. The rope winding and unwinding device as described in claim 1, characterized in that, The guide part is a groove provided on the main body, and the groove is used to form the fixed path for the rope to move.

3. The cord winding and unwinding device according to claim 2, wherein The groove includes a first groove segment and a second groove segment arranged around the rotation axis of the winding wheel, wherein the first groove segment is closer to the fixing part than the second groove segment; Along the extension direction of the groove, the length of the first groove segment is L1, the length of the second groove segment is L2, and L1 and L2 satisfy the condition: 0.75≤L1 / L2≤0.875; and / or Along a direction parallel to the rotation axis of the winding reel, the width of the first groove segment is D1, the width of the second groove segment is D2, and D1 and D2 satisfy the condition: 0.4 ≤ D1 / D2 ≤ 0.5; and / or The first groove segment is an arc-shaped groove segment, and the second groove segment is a straight groove segment.

4. The rope winding and unwinding device as described in claim 3, characterized in that, The groove also includes a first transition groove section, which is located between the fixing part and the first groove section and is connected to the fixing part and the first groove section. From the side closer to the fixing part to the side farther away from the fixing part, the width of the first transition groove section gradually increases in a direction parallel to the rotation axis of the winding wheel.

5. The rope winding and unwinding device as described in claim 3, characterized in that, The groove also includes a second transition groove section, which is located between the first groove section and the second groove section and connects with the first groove section and the second groove section. From the side closer to the fixed part to the side farther away from the fixed part, the width of the second transition groove section gradually increases in a direction parallel to the rotation axis of the winding wheel.

6. The rope winding and unwinding device as described in claim 1, characterized in that, The first substrate is closer to the opening of the first receiving cavity than the second substrate, and the side of the first substrate away from the second substrate has a receiving cavity; The fixing part is a third threading hole provided on the main body. The third threading hole passes through the main body and the first substrate. The third threading hole is used to fix the other end of the rope, and the storage cavity is used to accommodate the knotted or sintered part of the rope end.

7. The rope winding and unwinding device as described in claim 1, characterized in that, The guide portion consists of a plurality of guide protrusions provided on the main body, with adjacent guide protrusions spaced apart to form a fixed path for the movement of the rope.

8. A cord winding and unwinding device according to any one of claims 1-7, characterized in that Also includes: A control component is disposed between the main body and the base, and the main body is rotatably connected to the base via the control component; When the knob is rotated in the first direction, the control element can move away from the opening of the first receiving cavity along the rotation axis of the winding wheel to limit the rotation distance of the winding wheel and achieve control over the total length of the released rope.

9. An article characterized by, include: Part One; Part Two; rope; as well as The rope winding and unwinding device as described in any one of claims 1-8, wherein the rope winding and unwinding device is used to tighten or release the rope to tighten or loosen the first portion and the second portion.

10. The article of claim 9, wherein, The item is one of the following: shoes, hats, gloves, medical protective gear, helmets, storage devices, ski protective gear, bags, and clothing.

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