Lacing device and article having same

Abstract

The utility model discloses a kind of lacing device and article with the lacing device of accessory connection, the lacing device is used to tighten and loosen for lacing, the lacing device includes base, shell and screw cap, the shell is fixedly arranged on the base, the screw cap is rotatably arranged on the shell, the screw cap includes outer side wall and protruding part, the protruding part extends radially outward from the outer side wall, a through hole is formed on the protruding part, the through hole is configured as a passage for wire to pass through to connect the accessory, the lacing device is decorated by different forms of accessories, so that the overall appearance of the lacing device is more abundant and has interesting, can better meet the aesthetic needs of increasingly diverse and personalized users.

Description

Technical Field

[0001] This utility model relates to the field of everyday items technology, and in particular to a strapping device for connecting accessories and an item having the same. Background Technology

[0002] Currently, the adjustment function of lacing on footwear, bags, clothing, and hats can be achieved by installing lacing devices on these items. As a functional component, lacing devices usually have a rather dull appearance. Although some lacing devices may have patterns or colors added to the surface of the casing, the overall appearance is still relatively monotonous, lacking in depth and variety. This makes it difficult to perfectly match different styles of footwear, bags, or clothing, and also fails to meet the increasingly diverse and personalized aesthetic needs of users. Utility Model Content

[0003] This invention addresses the problem of monotonous appearance of existing lacing devices by providing a lacing device for connecting accessories and an article having a lacing device.

[0004] The present invention provides a strapping device for tightening and loosening straps, comprising: a base, a housing, and a cap. The housing is fixedly disposed on the base, and the cap is rotatably disposed on the housing. The cap includes an outer wall and a protrusion. The protrusion extends radially outward from the outer wall and has a through hole. The through hole is configured as a channel through which a wire can pass for connecting the accessory.

[0005] Optionally, there are multiple protrusions, which are located on the same plane and spaced apart around the outer side wall.

[0006] Optionally, at least a portion of the protrusion is located in the section from the bottom edge of the outer wall to half of the axial height.

[0007] Optionally, the axial thickness of the protrusion is H1, where 1 mm ≤ H1 ≤ 2 mm.

[0008] Optionally, the protrusion defines a first cross-section along a direction perpendicular to the central axis of the screw cap, the first cross-section having a distal edge away from the outer side wall and a first opening defined by intersecting the through hole.

[0009] Optionally, a first point is located on the distal edge, and a second point is located on the periphery of the first aperture. The distance between the first point and the second point is D1, where D1 ≥ 0.8 mm.

[0010] Optionally, the first opening is an axisymmetric figure, the first cross section has a first side and a second side along the first opening, the second side is located between the first side and the outer side wall, the central axis of the screw cap and the axis of the first opening define a first virtual plane, the intersection point of the first virtual plane and the first side is determined as a third point, the intersection point of the first virtual plane and the second side is determined as a fourth point, and the distance between the third point and the fourth point is D2, 0.8 mm≤D2≤2 mm.

[0011] Optionally, the outer wall is integrally formed with the protrusion.

[0012] Optionally, the accessory is fixedly connected to the screw cap by a wire passing through the through hole, wherein the accessory comprises a decorative piece made of one or more materials selected from textiles, slush, silicone, and plastic.

[0013] This utility model provides an article with a lacing device, including a lacing device as described above that is installed on the article.

[0014] The tie-up device provided in this embodiment of the utility model has a protrusion on the outer wall of the screw cap and a through hole in the protrusion, so that accessories can be fixedly connected to the screw cap by thread through the through hole. In particular, it is convenient to fix flexible or elastic decorative materials such as textiles, PVC, silicone or plastic to the screw cap by sewing. By decorating the tie-up device with accessories of different shapes, the overall appearance of the tie-up device is no longer monotonous, but more colorful, and better meets the increasingly diverse and personalized aesthetic needs of users.

[0015] Additional aspects and advantages of embodiments of the present invention will be set forth in the description which follows, and in part will be obvious from the description or may be learned by practice of embodiments of the present invention. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of the lacing device according to an embodiment of the present utility model;

[0018] Figure 2 yes Figure 1 The diagram shows the exploded structure of the tethering device.

[0019] Figure 3 yes Figure 1 A three-dimensional structural schematic diagram of the screw cap with the shown lacing device;

[0020] Figure 4 yes Figure 1 A schematic diagram of the screw cap of the lacing device shown in the front view;

[0021] Figure 5a yes Figure 4 A cross-sectional view of the cap of the lacing device shown along the BB direction;

[0022] Figure 5b Figure 5a A magnified view of a portion of S1 is shown below;

[0023] Figure 6a yes Figure 1 A top view of the screw cap of the lacing device shown;

[0024] Figure 6b yes Figure 6a A magnified view of a portion of point S2 is shown below;

[0025] Figure 7 yes Figure 1 A schematic diagram of the screw cap of the lacing device as viewed from below;

[0026] Figure 8 yes Figure 1 A top view of another embodiment of the screw cap protrusion of the lacing device shown;

[0027] Figure 9 yes Figure 1 A schematic diagram of the screw cap connection attachment for the shown lacing device;

[0028] Figure 10 It was installed on footwear. Figure 1 A schematic diagram showing the rear of the lacing device;

[0029] Explanation of icon numbers:

[0030] 100-Tacking device, 110-Screw cap, 111-Outer wall, 112-Protrusion, 1121-Through hole, 1122-First surface, 1123-Second surface, 1124-Far edge, 11241-First point, 1125-First opening, 11251-Second point, 11252-Third point, 11253-Fourth point, 1126-First side, 1127-Second side, 1128-First cross section, 113-Top surface, 114-First connection, 115-Second connection, 120-Housing, 121-Receiving cavity, 130-Spool, 140-Base, 150-Pawl, 200-Accessory, 300-Item Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein the same or similar reference numerals denote the same or similar parts or parts having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] It should be understood that the terms "upper", "lower", "left", "right", "front", "back", "length", "width", "horizontal", "vertical", "top", "bottom", "inner", and "outer" used in the description of this utility model to indicate the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings. They are intended to facilitate the description of this utility model and simplify the description, and should not be construed as a limitation that the device or component referred to must have a specific orientation or positional relationship.

[0033] Furthermore, the terms "first" and "second" are used solely for distinguishing purposes and do not imply relative importance, nor do they indicate or suggest the number of technical features. Therefore, a feature defined by "first" or "second" may explicitly or implicitly indicate that there is one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly defined.

[0034] Unless otherwise expressly specified, the terms "connection" and "fixation" in this utility model should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrally formed connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The following description, in conjunction with the accompanying drawings and specific embodiments, details a tie device for connecting accessories and an article containing the same, according to an embodiment of the present invention.

[0036] Please see Figures 1 to 3This utility model provides a lacing device 100 for connecting accessories. The lacing device 100 can be used to tighten and loosen the laces of shoes, hats, bags, and other items with laces. The lacing device 100 includes a base 140, a housing 120, and a cap 110. The housing 120 is fixedly mounted on the base 140, and the cap 110 is rotatably mounted on the housing 120. The cap 110 includes an outer wall 111 and a protrusion 112. The protrusion 112 extends radially outward from the outer wall 111, and a through hole 1121 is formed on the protrusion 112, which is configured as a channel for thread to pass through for connecting accessories. Through the through hole 1121, accessories of various shapes, especially decorative parts containing flexible or elastic components made of textiles, PVC, silicone, or plastic, can be easily fixed to the cap 110 by means of sewing or other methods, making the overall appearance of the lacing device 100 more beautiful and richer. Specifically, the lacing device 100 also includes a spool 130 and a pawl 150. The housing 120 has a receiving cavity 121, the spool 130 is placed in the receiving cavity 121, and the pawl 150 is disposed between the housing 120 and the cap 110. The lacing strap of the item can be connected to the spool 130 so that the lacing strap can be tightened and loosened by rotating the spool 130. The base 140 can be fixed to the item by means of adhesive, sewing, etc. The spool 130 is placed inside the receiving cavity 121 of the housing 120, and the housing 120 is snapped onto the base 140 to fix the housing 120 to the base 140. The housing 120 is equivalent to the stator structure of the strapping device 100. After the cap 110 is fastened to the housing 120, the cap 110 can rotate or pull up and down relative to the housing 120. The movement of the cap 110 controls the movement of the spool 130, thereby controlling the tightening and loosening of the strap by operating the cap 110. It should be noted that... Figure 2 The present invention provides only an example structure of the lacing device 100 in this embodiment. In other embodiments, the winding assembly 130, the pawl 150, etc. in the lacing device 100 may be in other structural forms or may be connected to the housing 120, the screw cap 110, etc. in other ways.

[0037] Please see Figures 3 to 8 The screw cap 110 includes a circular top surface 113, and an outer side wall 111 surrounds the periphery of the top surface 113, with an opening at the bottom end of the outer side wall 111. There are multiple protrusions 112, which can be two, three, or more, and these protrusions 112 are located on the same plane and spaced apart around the outer side wall 111. In this embodiment, the protrusions 112 are ear-shaped, and all protrusions 112 are symmetrically arranged on the outer side wall 111 around the central axis of the screw cap 110, and all protrusions 112 are located on the same radial plane of the screw cap 110, wherein the central axis of the screw cap 110 is as follows: Figure 3The A1 axis shown is the axial direction of the screw cap 110. It should be noted that the protrusion 112 extends radially outward from the outer wall 111. The protrusion 112 does not need to be completely perpendicular to the A1 axis; it is sufficient that the protrusion 112 protrudes outward from the outer wall 111 as a whole.

[0038] Optionally, adjacent protrusions 112 are connected by a first connecting portion 114, so that the protrusions 112 as a whole form a smooth, wavy shape. A second connecting portion 115 is provided at the connection between the protrusions 112 and the outer wall 111. The second connecting portion 115 is constructed as a smooth slope, so that the protrusions 112 and the outer wall 111 extend smoothly together.

[0039] In this embodiment, by providing multiple protrusions 112, on the one hand, more through holes 1121 are provided as wire passages to connect accessories to the cap 110, allowing the accessories to be more securely fixed to the cap 110. On the other hand, it also facilitates the adaptation of different types of accessories. Some accessories can be securely connected with a few through holes 1121, while others require more through holes 1121 for better fixation. Providing multiple through holes 1121 can better accommodate different types of accessories. Secondly, in this embodiment, all the protrusions 112 are radially coplanar, which makes it easier for machines or humans to align the wires through the through holes 1121 in the subsequent accessory connection process. In addition, the provision of the first connecting part 114 and the second connecting part 115 makes the connection between the protrusions 112 and between the protrusions 112 and the outer wall 111 smoother and more even, and the appearance of the cap 110 is more aesthetically pleasing.

[0040] In some other embodiments, the number of protrusions 112 can be one, and the through holes 1121 provided on the protrusions 112 can be one or more. When there are multiple protrusions 112, the multiple protrusions 112 can also be scattered and not symmetrically arranged along the central axis of the cap 110; or only some of the protrusions 112 can be arranged coplanarly, and the plane formed by the coplanar protrusions 112 may not be perpendicular to the central axis of the cap 110. Adjacent protrusions 112 may not be connected by the first connecting part 114, and the part between them is directly part of the outer wall 111. The connection between the protrusions 112 and the outer wall 111 may not be provided with the second connecting part 114, or it may only be provided partially, for example, only the connection between the protrusion 112 facing the top surface 113 and the outer wall 111 is provided, and the connection on the side away from the top surface 113 is not provided. The protrusions 112 can also be provided in the form of triangles, semicircles or other types of plates or columns, and can also be provided in the form of... Figure 8As shown, the annular protrusion 112 extends outward from the outer side wall 111, and the through hole 1121 is opened in the annular protrusion 112, so there is no need to provide the first connecting part 114. In addition, the outer surface of the top surface 113 of the screw cap 110 can also be provided as a non-circular shape, and the outer side wall 111 can also be provided as an irregular cylindrical structure.

[0041] Please see Figure 4 At least a portion of the protrusion 112 is located in the section from the bottom edge of the outer wall 111 to half its axial height. Specifically, with the central axis A1 of the screw cap 110 as the axis, the axial height from the bottom edge of the outer wall 111 to the top surface is defined as the axial height H0 of the outer wall 111. The protrusion 112 has a first surface 1122 and a second surface 1123, and the axial distance between the first surface 1122 and the second surface 1123 is defined as the axial thickness H1 of the protrusion 112. In this embodiment, the protrusion 112 is located in the lower half of the outer wall 111, that is, the portion between the bottom edge of the outer wall 111 and the centerline of the outer wall 111, that is, in the section from the bottom edge of the outer wall 111 to the height H0 / 2. The distance by which the second surface 1123 of the protrusion 112 extends above the bottom edge is H2, and the range of H2 is 0.6 mm ≤ H2 ≤ 1.2 mm, where mm is millimeters. By raising the protrusion 112 by a distance H2 relative to the bottom edge of the outer wall 111, additional space is provided when attaching accessories such as plush toys or yarn decorations, reducing contact between the accessory surface and other components such as the housing 120 or base 140. This effectively avoids or reduces the risk of such accessories interfering with the rotation function of the cap 110, ensuring the smoothness of the cap 110's rotation function and guaranteeing the user's feel.

[0042] Protrusion 112 can be as follows Figure 4 As exemplified, the protrusion 112 is entirely located in the lower half of the outer wall 111 and occupies only a portion of the lower half. In other embodiments, the protrusion 112 may also fill the entire lower half of the outer wall 111, or the second surface 1123 may be located in the lower half while the first surface 1122 is located above the centerline of the outer wall 111. In still other embodiments, the protrusion 112 may also be configured such that the first surface 1122 is located in the lower half of the outer wall 111, and the second surface 1123 protrudes below the bottom edge of the outer wall 111, i.e., the bottom surface of the protrusion 112 is lower than the bottom edge of the outer wall 111.

[0043] By providing at least a portion of the protrusion 112 on the lower half of the outer wall 111, it is easier to accommodate a portion of the cap 110 in such accessories when attaching such as plush toys, yarn decorations, or accessories with receiving space. This makes the accessories and the strap device 100 more visually integrated and also makes it easier for the user to grip the accessories and rotate the cap 110.

[0044] Since the protrusion 112 extends radially outward along the outer wall 111, to ensure its robustness and prevent breakage by external forces, the protrusion 112 needs to have a certain thickness. Simultaneously, the overall aesthetic appearance of the cap 110 after the protrusion 112 is installed must be considered, and the protrusion 112 should not be made too thick. In this embodiment, the axial thickness H1 of the protrusion 112 ranges from 1 mm ≤ H1 ≤ 2 mm. The ratio of H1 to the axial height H0 of the outer wall 111, i.e., the ratio of H1:H0, ranges from 1:7 to 2:5. This ensures both the thickness of the protrusion 112 and the aesthetic appearance of the cap 110.

[0045] Please combine Figures 4 to 6b Furthermore, the protrusion 112 defines a first cross-section 1128 along a direction perpendicular to the central axis A1 of the cap 110. The first cross-section 1128 has a distal edge 1124 away from the outer wall 111 and a first opening 1125 defined by intersecting with the through hole 1121. The first cross-section 1128 can be any cross-section of the protrusion 112 perpendicular to the central axis A1 of the cap 110, such as... Figure 5a The image shows the screw cap 110 along... Figure 4 The cross-sectional view shown is along the BB direction, which is perpendicular to the central axis A1 of the screw cap 110. Figure 5b The diagram shows a first cross-section 1128 of the protrusion 112 defined along a axis A1 perpendicular to the center of the screw cap 110. A first point 11241 is located on the distal edge 1124 of the first cross-section 1128, and a second point 11251 is located on the periphery of the first opening 1125. The straight-line distance between the first point 11241 and the second point 11251 is D1. The first point 11241 can be any point on the distal edge 1124, and the second point 11251 can be any point on the periphery of the first opening 1125. Figure 5bAs shown in the example, the first point 11241 is located at point P1, and the second point 11251 is located at point P2. The straight-line distance between points P1 and P2 is D1. In practice, after a through hole 1121 is made in the protrusion 112, a certain thickness must be maintained between the inner wall of the through hole 1121 and the outer surface of the protrusion 112. If the thickness is too thin, the protrusion 112 is easily worn through or broken. Preferably, D1 ≥ 0.8 mm (mm is millimeters). When D1 is less than 0.8 mm, the edge of the first opening 1125 is too close to the distal edge 1124, making the protrusion 112 at this position relatively fragile. Since the first cross section 1128 can be any cross section of the protrusion 112 perpendicular to the central axis A1 of the cap 110, the first point 11241 can be any point on the far side 1124, and the second point 11251 can be any point on the periphery of the first opening 1125, and the straight-line distance between the first point 11241 and the second point 11251 is not less than 0.8 mm, it can ensure that there is a certain wall thickness between the inner wall of the through hole 1121 near the outer side of the protrusion 112 and the outer side of the protrusion 112, and under normal circumstances, the weakest position is not less than 0.8 mm.

[0046] Furthermore, the first opening 1125 on the first cross-section 1128 is an axisymmetric figure. The first cross-section 1128 has a first side 1126 and a second side 1127 along the first opening 1125. The second side 1127 is located between the first side 1126 and the outer wall 111. The axis of the first opening 1125 is set as O1. O1 and the central axis of the screw cap 110 can define a first virtual plane. The projection line of the first virtual plane in the axial direction is as follows: Figure 5a and Figure 5b As shown in A2, the intersection point of the first virtual plane and the first side 1126 is determined as the third point 11252, and the intersection point of the first virtual plane and the second side 1127 is determined as the fourth point 11253. The distance between the third point 11252 and the fourth point 11253 is D2, as shown in Figure 2. Figure 5b The straight-line distance between points P3 and P4 shown, D2, is in the range of 0.8 mm ≤ D2 ≤ 2 mm. When D2 is less than 0.8 mm, the radial opening of the first hole 1125 is too small, making it difficult for lines, ropes, etc. to pass through smoothly. When D2 is greater than 2 mm, the opening of the first hole 1125 is too large, and the protrusion 112 also needs to be set with a larger radial area, which reduces the overall aesthetic appeal.

[0047] In this embodiment, the first opening 1125 on the first cross-section 1128 is an oblong shape. If the first point 11241 is exactly the point where the first virtual plane intersects with the far edge 1124, and the second point 11251 is located at the position of the third point 11252, that is, as shown... Figure 5bPoints P1 and P3 are shown. At this point, D1 is the shortest distance, meaning that D1 at this position is the closest distance between the periphery of the first opening 1125 and the far side 1124. The straight-line distance D2 between points P3 and P4 is the radial diameter of the two long sides of the oblong shape.

[0048] Understandably, when the first cross-section 1128 coincides with the upper surface of the protrusion 112, the first cross-section 1128 is the first surface 1122 of the protrusion 112; when the first cross-section 1128 coincides with the lower surface of the protrusion 112, the first cross-section 1128 is the second surface 1123 of the protrusion 112. Please refer to [link / reference]. Figure 6a and Figure 6b When the first cross-section 1128 is the first surface 1122 of the protrusion 112, the first surface 1122 has a distal edge 1124 away from the outer wall 111, and a first opening 1125 defined by the intersection of the first surface 1122 and the through hole 1121. The first opening 1125 is the upper opening of the through hole 1121. In this embodiment, the upper opening of the through hole 1121 is chamfered at the point extending from the first surface 1122 along the inner wall of the through hole, and the first surface 1122 is also chamfered at the point extending along the outer side of the protrusion 112. The first point 11241 on the distal edge 1124, i.e. Figure 6b Point P5 is shown, and the second point 11251 is located on the periphery of the first opening 1125. Figure 6b Midpoint P6, D1 is the distance between points P5 and P6. O1 and the central axis of the screw cap 110 define the first virtual plane, and the intersection of the first virtual plane and the first side 1126 is determined as the third point 11252, i.e. Figure 6b The midpoint P7 is used to determine the intersection point of the first virtual plane and the second side 1127 as the fourth point 11253, i.e. Figure 6bMidpoint P8, D2 is the distance between points P7 and P8. The shortest distance D1 is the distance between points P5 and P7. Of course, in the special case where the first cross-section 1128 is the first surface 1122 of the protrusion 112, when the upper opening of the through hole 1121 has a chamfer extending from the first surface 1122 along the inner wall of the through hole 1121, or when the first surface 1122 also has a chamfer extending along the outer side of the protrusion 112, the first surface and the chamfer only occupy a small portion of the protrusion, and the range of the shortest distance D1 of the first cross-section 1128 at the first surface 1122 and the chamfer can also be less than 0.8 mm. In fact, as long as the shortest distance D1 on the first cross-section 1128 of most locations of the protrusion 112, i.e., excluding the first surface 1122, the first surface 1123, and the chamfered areas, is greater than or equal to 0.8 mm, the effective wall thickness between the inner wall of the through hole 1121 and the outer side of the protrusion 112 can be guaranteed to be greater than or equal to 0.8 mm, thereby ensuring the firmness of the protrusion 112. It can be understood that when the upper opening of the through hole 1121 does not have a chamfer along the inner wall of the through hole 1121 from the first surface 1122, and also does not have a chamfer along the outer side of the protrusion 112 from the first surface 1122, and when the inner wall of the through hole 1121 is parallel to the A1 axis, D2 and the shortest distance D1 on all first cross-sections 1128 of the protrusion 112 should be consistent.

[0049] In other embodiments, the through hole 1121 formed on the protrusion 112 can also be other regular or irregular structures. The opening 1125 of the through hole 1121 with different structures can also be other shapes, such as circular, elliptical, rectangular or other irregular shapes. At the same time, the straight-line distance D1 between the first point 11241 and the second point 11251, and the straight-line distance D2 between the third point 11252 and the fourth point 11253 can also be set to other ranges, as long as it is ensured that the edge of the through hole 1121 is not excessively thin from the distal edge 1124, and that the through hole 1121 is not excessively narrow.

[0050] The outer wall 111 and the protrusion 112 can be made of semi-rigid or rigid materials such as plastic, metal, or carbon fiber, either separately or simultaneously. They can use the same material for ease of processing, or they can be made of different materials. Furthermore, the outer wall 111 and the protrusion 112 can be integrally molded to form an inseparable, single structure. For example, when both are made of plastic, they can be formed directly in the injection mold using injection molding, avoiding subsequent secondary assembly. When both are made of metal, they can be integrally molded by punching, cutting, or powder metallurgy of the metal sheet. Alternatively, they can be integrally printed using additive manufacturing (3D printing) processes such as fused deposition modeling, photopolymerization, and selective laser melting. Through integral molding, a continuous material transition can be formed between the outer wall 111 and the protrusion 112 without additional fasteners, thus improving the connection strength between them.

[0051] Please see Figure 9 In this embodiment, the accessory 200 is fixedly connected to the screw cap 110 by a thread passing through the through hole 1121. The accessory 200 connected to the screw cap 110 may include decorative parts made of one or more materials selected from textiles, vinyl, silicone, and plastic. When the accessory 200 includes textile decorative parts made primarily of textiles, such as plush toys, knitted toys, fabric toys, or felt toys, or decorative parts made of relatively flexible materials such as vinyl, silicone, and plastic, such toys or decorative parts are generally easier to fix by sewing. Therefore, the accessory 200 can be fixedly connected to the screw cap 110 by a thread passing through the through hole. It is understood that the accessory 200 can be a decorative component or a non-decorative component. The accessory 200 may be entirely made of textiles, vinyl, silicone, or plastic, or only some parts may be made of textiles, vinyl, silicone, or plastic, as long as it is easy to connect by sewing. In addition to traditional textile threads, the thread used for sewing can also be other linear, rope-like, or strip-like materials such as nylon thread, metal filaments, and elastic thread, to meet different strength or functional requirements, thereby improving the durability of accessory connections. Figure 9The diagram shows the attachment 200 connected to the cap 110 using stitching. A protrusion 112 is provided on the outer wall 111 of the cap 110, and a through hole 1121 is formed on the protrusion 112, facilitating the connection of attachments 200 of different shapes or types to the tying device 100. This decorates the tying device 100, increasing its visual richness and appeal. Furthermore, stitching is a relatively simple operation method for users; they can connect their favorite dolls to the cap 110 themselves using stitching. Users can also disassemble and reconnect different dolls according to their changing preferences, thus better meeting their varied, diverse, and personalized aesthetic needs.

[0052] Please see Figure 10 This embodiment of the invention also provides an article 300 with a lacing device 100. The main body of the lacing device 100 is fixedly installed on the article 300 via a base 140, and the lacing device 100 is used to tighten and loosen the laces of the article 300. In other embodiments, the article 300 may be shoes, clothing, hats, bags, etc., with laces. Figure 10 This is a schematic diagram of footwear with the lacing device 100 installed. The lacing device 100 allows for easy connection of various decorative accessories 200, better matching the style of different items 300 and enhancing their aesthetics and appeal.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A lacing device for attaching accessories, the lacing device being used to tighten and loosen lacing, characterized in that, The tying device includes a base, a housing, and a cap. The housing is fixedly mounted on the base, and the cap is rotatably mounted on the housing. The cap includes an outer wall and a protrusion. The protrusion extends radially outward from the outer wall and has a through hole. The through hole is configured as a channel through which a wire can pass for connecting the accessory.

2. The lacing device according to claim 1, characterized in that, There are multiple protrusions, which are located on the same plane and spaced apart around the outer side wall.

3. The lacing device according to claim 1, characterized in that, At least a portion of the protrusion is located in the section from the bottom edge of the outer wall to half of its axial height.

4. The lacing device according to claim 1, characterized in that, The axial thickness of the protrusion is H1, where 1 mm ≤ H1 ≤ 2 mm.

5. The lacing device according to claim 1, characterized in that, The protrusion defines a first cross-section along a direction perpendicular to the central axis of the screw cap, the first cross-section having a distal edge away from the outer side wall and a first opening defined by intersecting the through hole.

6. The lacing device according to claim 5, characterized in that, The distal edge has a first point, and the periphery of the first opening has a second point. The distance between the first point and the second point is D1, where D1 ≥ 0.8 mm.

7. The lacing device according to claim 5, characterized in that, The first opening is an axisymmetric figure. The first cross section has a first side and a second side along the first opening. The second side is located between the first side and the outer side wall. The central axis of the screw cap and the axis of the first opening define a first virtual plane. The intersection point of the first virtual plane and the first side is determined as a third point. The intersection point of the first virtual plane and the second side is determined as a fourth point. The distance between the third point and the fourth point is D2, where 0.8 mm ≤ D2 ≤ 2 mm.

8. The lacing device according to claim 1, characterized in that, The outer wall is integrally formed with the protrusion.

9. The lacing device according to claim 1, characterized in that, The accessory is fixedly connected to the screw cap by a wire passing through the through hole, wherein the accessory comprises a decorative part made of one or more materials selected from textiles, slush, silicone, and plastic.

10. An article having a lacing device, characterized in that, Includes a lacing device as described in any one of claims 1 to 9, mounted on the article.

Images