Turn cap and lacing device comprising same
By using a flexible snap-fit or interference fit between soft decorative parts and rigid inner screw caps, the problems of cumbersome shoelace fastening and limited appearance options in traditional shoelaces are solved, enabling diverse designs and convenient replacement of screw caps, thus improving the user experience.
Patent Information
- Application Number
- CN202520693459.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-11
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-04-11
AI Technical Summary
Traditional shoelace fastening methods are cumbersome and prone to loosening, while rigid material swivel caps offer limited aesthetic options and fail to meet users' aesthetic needs.
The decorative parts made of soft materials are connected to the inner screw cap made of hard materials through a combination of flexible snap-fit, zero-to-zero fit or interference fit. The decorative parts and the inner screw cap can rotate relative to each other or move together, so as to achieve a variety of appearances and convenient replacement.
It offers a variety of styles, a good feel, and easy replacement of the screw cap design to meet users' appreciation needs, while ensuring the implementation of the fastening function.
Smart Images

Figure CN223873391U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to life kind device technical field, especially a kind of cap and the lacing device comprising it. BACKGROUND
[0002] The fixing of shoelace usually adopts the way of shoelace crossing knot, but the way is more tedious, and the shoelace is easy to loosen in walking and movement, causing inconvenience.
[0003] To solve the above problems, the lacing device for adjusting the tightness of shoelace appears in the market. The traditional lacing device usually includes a base, a shell arranged on the base, a winding drum arranged between the base and the shell, and a cap rotatably arranged on the shell. In order to ensure mechanical strength, the cap is usually made of hard material (for example, hard plastic). However, the modeling ability of hard material is often poor, and the appearance selection is low, which cannot meet the growing aesthetic needs of users. There is an urgent need for a cap with multiple modeling options and easy-to-change appearance to meet the user's demand for lacing device. SUMMARY
[0004] Therefore, it is necessary to provide a cap that can solve the above problems. In addition, it is also necessary to provide a lacing device comprising the cap.
[0005] A cap for a lacing device, the cap comprising an inner cap and a decorative piece arranged outside the inner cap, the decorative piece being a soft material piece.
[0006] The connection mode of the decorative piece and the inner cap is one or a combination of elastic clamping, zero-to-zero fitting or interference fitting, and the decorative piece and the inner cap rotate relative to each other or are linked.
[0007] The "combination of multiple" means that at least two connection modes are combined. For example: combination of zero-to-zero fitting and elastic clamping, combination of interference fitting and elastic clamping, etc.
[0008] Elastic clamping is a connection mode that uses the elastic deformation of plastic parts to quickly assemble and disassemble parts. The elastic properties of plastic are used to produce elastic deformation of two parts during assembly, thereby achieving tight connection. Elastic clamping has the advantages of low cost, easy assembly and disassembly, and can be reused after disassembly.
[0009] The relative rotation or linkage of the decoration piece and the inner rotating cap means that the decoration piece and the inner rotating cap can rotate relative to each other, that is, when only a rotating force is applied to the decoration piece, the decoration piece does not necessarily drive the inner rotating cap to rotate synchronously, the inner rotating cap can remain stationary or be occasionally driven, or the rotation rate of the inner rotating cap is different from that of the decoration piece, so the two can rotate relative to each other. The linkage of the decoration piece and the inner rotating cap means that when only a rotating force is applied to the decoration piece, the rotation of the decoration piece drives the inner rotating cap to rotate synchronously, or although the inner rotating cap and the decoration piece do not rotate synchronously at the beginning, after a period of idling or transition, the inner rotating cap can finally rotate synchronously with the decoration piece.
[0010] The inner rotating cap in the present application corresponds to the rotating cap structure in the existing lacing device, and it is generally known by those skilled in the art that the rotation of the inner rotating cap can realize the tightening function in cooperation with other parts of the lacing device. Therefore, whether the decoration piece and the inner rotating cap can be linked in the connection structure or not, the inner rotating cap must be able to rotate to realize the tightening function ultimately.
[0011] In one embodiment, the decoration piece and the inner rotating cap are elastically clamped.
[0012] The inner side of the decoration piece is provided with an elastic clamping ring, and the outer side of the inner rotating cap is provided with a clamping part matched with the elastic clamping ring, and the elastic clamping ring and the clamping part are one of a protrusion and a clamping groove.
[0013] Preferably, the elastic clamping ring can be a whole ring or a combination of clamping ring segments with intervals.
[0014] Further, the inner contour of the elastic clamping ring is not limited to a circular shape, but can also be other shapes such as a hexagonal shape, a pentagonal shape, etc., and can also be configured as a special shape such as an irregular shape. As long as the elastic clamping ring and the clamping part can be clamped and connected.
[0015] In one embodiment, the elastic clamping ring is an annular protrusion arranged on the inner side of the decoration piece and close to the opening end thereof, and the clamping part is an annular clamping groove arranged on the outer side of the inner rotating cap and close to the opening end thereof.
[0016] In one embodiment, the annular clamping groove and the part adjacent thereto on the inner rotating cap form a stepped shape.
[0017] In one embodiment, the decoration piece has an inner cavity, and the inner rotating cap is wholly or partially embedded in the inner cavity of the decoration piece.
[0018] In one embodiment, the maximum outer diameter of the inner rotating cap is greater than or equal to the minimum inner diameter of the inner cavity of the decoration piece, and the maximum outer diameter of the inner rotating cap and the minimum inner diameter of the inner cavity of the decoration piece form an interference fit or a zero-to-zero fit.
[0019] In one embodiment, the decorative piece is in interference fit with the inner screw cap.
[0020] The outer sidewall of the inner screw cap is gradually inwardly tapered from the bottom to the open end, so that when the decorative piece is sleeved outside the inner screw cap, the part of the inner cavity sidewall of the decorative piece close to the bottom is in abutment with the outer sidewall of the inner screw cap, thereby realizing the interference fit of the decorative piece with the inner screw cap.
[0021] In one embodiment, the inner cavity sidewall of the decorative piece is gradually outwardly expanded from the bottom to the open end, so that when the decorative piece is sleeved outside the inner screw cap, the part of the inner cavity sidewall of the decorative piece close to the bottom is in abutment with the part of the outer sidewall of the inner screw cap close to the bottom. On the other hand, since the inner cavity sidewall of the decorative piece is gradually outwardly expanded from the bottom to the open end, the sleeving process of the decorative piece is relatively easy.
[0022] In one embodiment, the decorative piece is a silica gel sleeve, a rubber sleeve or a soft plastic sleeve.
[0023] In one embodiment, the inner screw cap is a hard material piece, including hard plastic, metal, glass, etc.
[0024] In one embodiment, the outer sidewall of the inner screw cap is provided with a first operation part, and the first operation part is composed of a protruding structure and a recessed structure. The first operation part can increase the friction between the inner screw cap and the decorative piece, so that the movement of the decorative piece can more easily cause the synchronous movement of the inner screw cap.
[0025] In one embodiment, the outer sidewall of the decorative piece is provided with a second operation part, and the second operation part is composed of a protruding structure and a recessed structure. The second operation part is provided to facilitate the user to screw the decorative piece.
[0026] The utility model also provides a kind of lacing device, including shell and above-mentioned screw cap, the inner screw cap is rotatably sleeved on the shell.
[0027] When this screw cap is used in lacing device, the decorative piece detachably connected with the inner screw cap is sleeved outside the inner screw cap, and the user reaches the purpose of screwing the inner screw cap by screwing the decorative piece. The style and modeling of the decorative piece are selectively more, improve user operation feeling, and also have the nature of being able to be enjoyed.
[0028] When the decorative piece and the inner screw cap can be linked in structure, the user reaches the purpose of screwing the inner screw cap by screwing the decorative piece, to realize the tightening function of lacing device;Meanwhile, since the material of decorative piece is relatively soft, the screwing feeling is better.
[0029] Specifically, although the decoration piece and the inner rotating cap can be connected by one or more combinations of elastic clamping, zero-to-zero fitting or interference fitting, the decoration piece and the inner rotating cap can be linked or can rotate relative to each other. It is easy to understand that when the decoration piece and the inner rotating cap are linked, the rotation of the decoration piece will drive the rotation of the inner rotating cap, thereby achieving the function of tightening the strap. However, when the decoration piece and the inner rotating cap can rotate relative to each other, the connection between the decoration piece and the inner rotating cap is generally loose, and the decoration piece and the inner rotating cap are easier to disassemble and replace. When there is no need to tighten the operation, the user (such as a child) can take off the decoration piece for enjoyment, and after the enjoyment is over, the decoration piece can be re-fitted on the inner rotating cap. Since the decoration piece is relatively soft in material and has various shapes, such as cartoon images or plant and flower shapes, it has good ornamental and playing feeling, and after the enjoyment is over, it can be re-fitted on the inner rotating cap and is not easy to lose, so that the rotating cap design can meet the multi-directional needs of the user.
[0030] It is worth noting that although the decoration piece and the inner rotating cap can rotate relative to each other, it will not affect the realization of the tightening function. Specifically, when it is necessary to realize the tightening function by rotating the inner rotating cap, the user can press the side wall of the decoration piece, continuously apply lateral pressure while applying rotating force, so that the decoration piece extrudes the inner rotating cap, thereby realizing the linkage of the decoration piece and the inner rotating cap. Generally, when the decoration piece and the inner rotating cap are interference fitted, the decoration piece and the inner rotating cap are linkable.
[0031] In addition, the zero-to-zero fitting or interference fitting of the decoration piece and the inner rotating cap can also realize the low-cost replacement of the decoration piece, and the style of the decoration piece can be customized, thereby realizing the low-cost appearance replacement requirement.
[0032] In one embodiment, the decoration piece and the inner rotating cap are connected by a combination of elastic clamping and interference fitting, or by a combination of elastic clamping and zero-to-zero fitting.
[0033] Preferably, in addition to zero-to-zero fitting or interference fitting, elastic clamping is preferably used in combination between the decoration piece and the inner rotating cap. Elastic clamping can make the decoration piece more stably fitted on the inner rotating cap, so as to avoid accidental falling of the decoration piece.
[0034] Preferably, the elastic clamping ring is an annular protrusion arranged on the inner side of the decoration piece close to the opening end thereof, and the clamping part is an annular clamping groove arranged on the inner rotating cap close to the opening end thereof. Such structure cooperation makes the combination of soft and hard between the decoration piece and the inner rotating cap more stable.
[0035] Preferably, the annular groove and the portion of the inner rotating cap adjacent to it form an annular stepped shape. That is, the engaging portion is located at the open end of the inner rotating cap, and the outer wall of the engaging portion is radially recessed inward relative to its adjacent portion, thus presenting a stepped structure. This structural design allows the inner rotating cap to have the groove that mates with the elastic annular protrusion on its outer surface without changing its overall shape or reducing its mechanical strength.
[0036] Of course, in other preferred embodiments, the elastic retaining ring can also be constructed as an annular groove, and the outer wall of the inner rotating cap is provided with an annular protrusion, and the elastic annular groove and the annular protrusion form a snap-fit.
[0037] Because the decorative parts are made of soft materials, the annular protrusions or grooves integrally formed on them have elastic deformation capabilities due to the material itself, and are therefore defined as elastic retaining rings. The retaining parts on the inner cap, due to the relative rigidity of the hard material itself, cooperate with the elastic retaining rings to form an elastic retaining connection. Attached Figure Description
[0038] Figure 1 This is an exploded structural diagram of a spiral cap according to one embodiment.
[0039] Figure 2 For example Figure 1 The top view shown is of the assembled swivel cap.
[0040] Figure 3 For example Figure 2 The cross-sectional view of the swivel cap along the AA direction is shown.
[0041] Figure 4 For example Figure 1 The image shows a bottom view of the inner spiral cap of the spiral cap.
[0042] Figure 5 For example Figure 4 The cross-sectional view of the inward-swivel cap along the BB direction is shown.
[0043] Figure 6 For example Figure 1 Top view of the decorative element of the swivel cap shown.
[0044] Figure 7 For example Figure 6 The decorative element shown is a cross-sectional view along the CC direction.
[0045] Figure 8 This is an exploded structural diagram of the cap according to another embodiment.
[0046] Figure 9 For example Figure 8 The top view shown is of the assembled swivel cap.
[0047] Figure 10 is a sectional view of the screw cap along direction D-D. Figure 9
[0048] Figure 11 is a structural schematic view of the inner screw cap of the screw cap. Figure 8
[0049] Figure 12 is a top view of the inner screw cap. Figure 11
[0050] Figure 13 is a sectional view of the inner screw cap along direction E-E. Figure 12
[0051] Figure 14 is a structural schematic view of the decoration piece of the screw cap. Figure 8
[0052] Figure 15 is a top view of the decoration piece. Figure 14
[0053] Figure 16 is a sectional view of the decoration piece along direction F-F. Figure 15
[0054] is a partially exploded structural schematic view of the lacing device of an embodiment. Figure 17 BRIEF DESCRIPTION OF DRAWINGS
[0056] Housing 10; Inner screw cap 40, 240; Clamping portion 42; First operating portion 44; Decoration piece 50, 250; Elastic clasp 52; Second operating portion 54; Maximum outer diameter D1; Minimum inner diameter D2.DETAILED DESCRIPTION
[0057] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.
[0058] In the description of the utility model embodiments, it needs to be explained that, the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model embodiments and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model embodiments. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0059] In the description of the utility model embodiments, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the utility model embodiments can be understood according to the specific circumstances.
[0060] In the utility model embodiments, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.
[0061] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiments. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.
[0062] The utility model discloses a screw cap for lacing device in one implementation mode, combining Figures 1 to 7The cap of the present embodiment comprises an inner cap 40 and a decorative piece 50 sleeved outside the inner cap 40, the inner cap 40 is a hard material piece, and the decorative piece 50 is a soft material piece. The specific materials of the decorative piece 50 and the inner cap 40 can be selected according to actual conditions. Preferably, in the present embodiment, the decorative piece 50 is a silica gel sleeve, a rubber sleeve or a soft plastic sleeve, and the inner cap 40 is made of hard plastic, metal, glass or the like. More preferably, the material of the inner cap 40 is hard plastic, and the inner cap 40 is prepared by injection molding.
[0063] The decorative piece 50 and the inner cap 40 are connected by one or more of elastic clamping, zero-to-zero fitting or interference fitting, and the decorative piece 50 and the inner cap 40 rotate relative to each other or are linked.
[0064] Preferably, in the present embodiment, the decorative piece 50 and the inner cap 40 are elastically clamped, so that the decorative piece 50 is stably sleeved on the inner cap 40 to avoid accidental falling of the decorative piece 50.
[0065] In combination with the drawings, the inner side of the decorative piece 50 is provided with an elastic clamping ring 52, and the outer side of the inner cap 40 is provided with a clamping portion 42 matched with the elastic clamping ring 52. The elastic clamping ring 52 and the clamping portion 42 are one of a protrusion and a clamping groove. Preferably, in combination with the drawings, in the present embodiment, the elastic clamping ring 52 is an annular protrusion arranged on the inner side of the decorative piece 50 and close to the opening end thereof, and the clamping portion 42 is an annular clamping groove arranged on the outer side of the inner cap 40 and close to the opening end thereof. Such a structure design makes the combination of soft and hard between the decorative piece 50 and the inner cap 40 more stable. Specifically, in combination with the drawings, in the present embodiment, the annular clamping groove 42 and other parts of the outer wall of the inner cap 40 constitute a stepped structure. Since the inner diameter of the annular protrusion 52 is smaller than the outer diameter of other parts of the inner cap 40 except the annular clamping groove 42, when the decorative piece 50 is sleeved on the inner cap 40, the annular protrusion 52 of the opening end of the decorative piece 50 is first bent to elastically deform, and then buckled into the annular clamping groove 42 of the inner cap 40, at this time the annular protrusion 52 returns to its original state to clamp the inner cap 40. Since the decorative piece 50 is made of soft material and has elastic deformation capacity, the annular protrusion 52 constitutes an elastic clamping ring, thereby forming elastic clamping with the annular clamping groove 42. In other embodiments, the annular protrusion 52 can be a combination of several protruding segments.
[0066] When the elastic clamping is only between the inner cap 40 and the decoration 50, the connection between the two is relatively loose, and the inner cap 40 often cannot be linked with the decoration 50. At this time, it also does not affect the realization of the tightening function. Specifically, when the tightening function needs to be realized by rotating the cap, the user can press the side wall of the decoration 50, and continuously apply the lateral pressure while applying the rotating force, so that the decoration 50 extrudes the inner cap 40, thereby realizing the linkage between the two. That is, the user rotates and extrudes the decoration 50 to realize the purpose of driving the inner cap 40 to rotate. In this embodiment, the decoration 50 is configured in the shape of a flower, which may be more popular among the female group, especially girls; the decoration 50 can also be configured in other styles to meet the aesthetic needs of other groups or more groups. Since the decoration 50 connected by only elastic clamping is relatively easy to disassemble and replace, the user (such as a child) can take off the decoration 50 for play when there is no need to tighten, and then reassemble it on the inner cap 40 after the play is over. Since the decoration 50 is relatively soft in material, the hand feeling during the rotation operation is better than that of hard materials when it drives the inner cap 40 to rotate. On the other hand, the soft decoration 50 is more convenient to shape different shapes, not limited to the flower shape shown in the drawings, other shapes such as cartoon shapes, animal and plant shapes, building shapes, etc. can be used as long as they have ornamental shapes. The decoration 50 with various shapes has ornamental properties and better playing feeling, and can be reassembled on the inner cap after the play is over, and is not easy to lose, so that the cap design can meet the multi-directional needs of the user.
[0067] More preferably, the decoration 50 and the inner cap 40 are configured as zero-to-zero or interference fit, especially when the decoration 50 and the inner cap 40 are interference fit, the decoration 50 and the inner cap 40 often can realize linkage.
[0068] In combination with the drawings, the outer side wall of the inner cap 40 is provided with a first operation part 44, and the first operation part 44 is composed of protruding and recessed structures. The first operation part 44 increases the friction between the inner cap 40 and the decoration 50, and the user can avoid the relative rotation between the decoration 50 and the inner cap 40 when operating the decoration 50 to drive the inner cap 40 to rotate, so as to increase the linkage between the two. Even if the decoration 50 is removed, the first operation part 44 is also convenient for the user to operate the inner cap 40 to realize the tightening function.
[0069] In combination with the drawings, Figure 1 The outer side wall of the decoration 50 is also provided with a second operation part 54, and the second operation part 54 is composed of protruding and recessed structures. The second operation part 54 increases the friction of the outer side of the decoration 50, which is convenient for the user to rotate the decoration 50.
[0070] In combination withFigures 8 to 16 The present invention also discloses another embodiment of the swivel cap, including an inner swivel cap 240 and a decorative piece 250 fitted onto the inner swivel cap 240.
[0071] The decorative element 250 and the inner screw cap 240 are either interference-fitted or zero-to-zero fit, allowing the decorative element 250 to be more stably fitted onto the inner screw cap 240, thus preventing accidental detachment. The interference fit ensures a tighter connection between the two components. In this embodiment, the decorative element 250 has an inner cavity, and the inner screw cap 240 is embedded within this cavity. The maximum outer diameter D1 of the inner screw cap 240 is greater than or equal to the minimum inner diameter D2 of the cavity of the decorative element 250. The maximum outer diameter D1 of the inner screw cap 240 and the minimum inner diameter D2 of the decorative element 250 form an interference fit or zero-to-zero fit. In this embodiment, D1 is greater than D2, therefore the inner screw cap 240 and the decorative element 250 are interference-fitted. In other embodiments, D1 can also be equal to D2, in which case the inner cap 240 and the decorative element 250 form a zero-to-zero fit; and in other embodiments, the inner cap 240 can also be partially embedded in the inner cavity of the decorative element 250.
[0072] Preferred, combined with appendix Figure 13 The outer wall of the inner cap 240 extends from the bottom towards the opening end (according to...) Figure 13 The orientation shown is from top to bottom, gradually contracting inwards, so that when the decorative piece 250 is fitted over the inner cap 240, the portion of the inner sidewall of the decorative piece 250 near the bottom abuts against the outer sidewall of the inner cap 240, thereby achieving an interference fit between the decorative piece 250 and the inner cap 240. More preferably, in conjunction with the attached... Figure 16 The inner cavity sidewall of decorative piece 250 extends from the bottom towards the opening end (according to...) Figure 16 The orientation shown is from top to bottom, gradually expanding outwards, so that when the decorative piece 250 is fitted over the inner cap 240, the portion of the inner cavity sidewall of the decorative piece 250 near the bottom abuts against the portion of the outer sidewall of the inner cap 240 near the bottom. This structural arrangement makes the soft and hard connection between the decorative piece 250 and the inner cap 240 more stable, and the fitting operation of the decorative piece 250 is more convenient. In other embodiments, the outer sidewall of the inner cap and the inner cavity sidewall of the decorative piece are not limited to a uniform transition structure; any interference fit structure is acceptable.
[0073] Combination Figure 10 , Figure 13 , Figure 16As shown, the interference fit position of the inner cap 240 and the decoration 250 is close to the bottom of the overall structure of the cap, but in other embodiments, the interference fit can be configured at other positions, and the interference fit contact is not limited to line contact, but can also be surface contact; that is, the outer side wall of the inner cap 240 can have a surface with an outer diameter that is the maximum outer diameter D1, and correspondingly, the inner cavity side wall of the decoration can also have a surface with an inner diameter that is the minimum inner diameter D2. Further, due to the large inner diameter of the open end of the decoration 250 in the present embodiment, although this structure design makes the sleeving operation of the decoration 250 easier, it also causes the decoration 250 to be easily detached under external force, that is, the disassembly and installation are more convenient. In order to overcome the problem of accidental detachment of the decoration 250, in other preferred embodiments, a combination of elastic clamping can be used for assembly connection, and the elastic clamping here can be relatively loose.
[0074] In addition, the elastic clamping, zero-to-zero fit or interference fit between the decoration 50 and the inner cap 40 can also achieve low-cost replacement of the decoration 50, and the style of the decoration 50 is more selective, thereby achieving the demand for low-cost appearance replacement.
[0075] In combination Figure 17 The utility model discloses a strap device of an embodiment, including shell 10 and as Figures 1 to 7 The inner cap 40 is rotatably sleeved on the shell 10. Of course, the cap for the strap device can also be as Figures 8 to 16 The cap shown.
[0076] The cap structure provided by the utility model can be applied to all existing strap devices, and only the decoration that matches the cap size of the existing strap device needs to be customized, and it should be noted that the inner cap in the utility model is equivalent to the cap of the existing strap device. Or slightly improve the external structure of the cap of the existing strap device to make an inner cap that can be elastically clamped with the decoration.
[0077] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.
Claims
1. A cap for a lacing device; characterised in that, The cap comprises an inner cap and a decoration member sleeved outside the inner cap, the decoration member being a soft material member; The connection mode of the decoration member and the inner cap is one or a combination of elastic clamping, zero-to-zero fitting or interference fitting, and the decoration member and the inner cap are relatively rotatable or linked.
2. The spin cap of claim 1, wherein The decoration member and the inner cap are elastically clamped. The inner side of the decoration member is provided with an elastic clamping ring, and the outer side of the inner cap is provided with a clamping part matched with the elastic clamping ring, the elastic clamping ring and the clamping part being one of a protrusion and a clamping groove.
3. The spin cap of claim 2, wherein, The elastic clamping ring is an annular protrusion arranged on the inner side of the decoration member and close to the opening end thereof, and the clamping part is an annular clamping groove arranged on the outer side of the inner cap and close to the opening end thereof.
4. The spin cap of claim 3, wherein, The annular clamping groove and the part adjacent thereto on the inner cap form a stepped shape.
5. The spin cap of claim 1, wherein, The decoration member has an inner cavity, the inner cap is embedded in the inner cavity of the decoration member, the maximum outer diameter of the inner cap is greater than or equal to the minimum inner diameter of the inner cavity of the decoration member, so that the maximum outer diameter of the inner cap and the minimum inner diameter of the inner cavity of the decoration member form an interference fit or a zero-to-zero fit.
6. The spin cap of claim 1, wherein, The decoration member is a silica gel sleeve, a rubber sleeve or a soft plastic sleeve.
7. The spin-on cap of any one of claims 1-6, wherein, The decoration member and the inner cap are connected by a combination of elastic clamping and interference fitting, or by a combination of elastic clamping and zero-to-zero fitting.
8. The spin cap of claim 1, wherein, The outer side wall of the inner cap is provided with a first operation part, and the first operation part comprises a protruding structure and a recessed structure.
9. The spin cap of claim 1, wherein, The outer side wall of the decoration member is provided with a second operation part, and the second operation part comprises a protruding structure and a recessed structure.
10. A lacing device, comprising: The cap comprises a shell and a cap as claimed in any one of claims 1-9, and the inner cap is rotatably sleeved on the shell.