Loosening and winding belt sound production assembly and lacing device comprising same

Abstract

The utility model discloses a loose tape sounding assembly and a lacing device comprising the same, the loose tape sounding assembly comprises a housing, a winding reel and a sounding pawl, the winding reel and the housing can be connected in a relative rotation manner, and the sounding pawl and the housing or the winding reel are fixedly connected in a circumferential direction; a sounding pawl is arranged on the winding reel, pawl teeth are arranged on the sounding pawl, a sounding groove is correspondingly formed in the winding reel or the shell, the pawl teeth and the sounding groove are matched to form a sounding structure, and the sounding structure is configured to respond to rotation of the winding reel in the tape winding direction to generate audible sound. And generating audible sound in response to the rotation of the winding reel in the belt loosening direction. Therefore, the relative movement of the sounding pawl and the sounding groove is consistent with the relative movement of the winding reel and the shell, and the structure is simple and stable; and the uncoiled belt sound production assembly can give out sound which can be perceived by a user in response to the winding and the loosening of the tying belt.

Description

Technical Field

[0001] The utility model relates to the field of lacing devices, in particular to a loose-winding belt sounding component and a lacing device comprising the same. Background Art

[0002] At present, laces, ropes or other tensioning members are often used to tighten shoes, clothes or other items. The laces are usually located on shoes, clothes or other items so that the laces can tighten the openings of the shoes, clothes or other items. Although the lace devices in the prior art can meet the functional requirements of winding the laces to tighten shoes, clothes or other items, their functions are relatively simple. When users use them to tighten or loosen the laces, there is usually no sound interaction. Therefore, the user needs to check the tightness of the laces by visual observation, resulting in a poor user experience.

[0003] To this end, those skilled in the art have come up with the idea of ​​adding a sound-generating structure to the existing lacing device to enhance the user experience through sound interaction. For example, the prior art discloses an independent loose belt sound-generating part, which is driven to rotate by a driving structure on the loose winding shaft, and the elastic contact arm on the loose belt sound-generating part engages with the concave-convex structure on the shaft seat to produce sound. The technical solution provided by the prior art has the following disadvantages: first, the loose belt sound-generating part is driven to rotate in one direction by a driving structure, and the structure is relatively complex. The one-way transmission contact of the driving structure is poor and slipping is likely to occur; second, the separately arranged loose belt sound-generating part increases the height of the lacing device, which is not conducive to miniaturization.

[0004] Therefore, it is necessary to provide a loose-rolled belt sound-generating component with a simple structure and good stability to improve the user's sound interaction experience. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent. To this end, one purpose of the utility model is to provide a loose belt sounding assembly and a lacing device comprising the same.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a loose belt sound-generating component, comprising:

[0007] A housing, a winding drum and a sounding pawl, wherein the winding drum and the housing are rotatably connected relative to each other, and the sounding pawl and the housing are circumferentially fixedly connected;

[0008] The sounding pawl is provided with pawl teeth, and the winding drum is correspondingly provided with a sounding groove. The pawl teeth cooperate with the sounding groove to form a sounding structure, and the sounding structure is constructed to produce an audible sound in response to the rotation of the winding drum along the winding direction, and to produce an audible sound in response to the rotation of the winding drum along the loosening direction.

[0009] The "circumferential direction" mentioned in this application refers to the circumferential direction of rotation of the winding drum; the "circumferential fixed connection" mentioned means that the two connecting parts cannot rotate relative to each other, but relative movement between the two in other directions, such as relative movement along the axial direction, is allowed.

[0010] Furthermore, the ratchet teeth and the sounding groove are configured to be meshed with each other, and the meshing direction is axial meshing or radial meshing.

[0011] The axial direction in the "axial engagement" described in the present application refers to the axial direction parallel to the shell and the winding drum, wherein the shell and the winding drum are coaxially arranged or axially parallel; the radial direction in the "radial engagement" described refers to the radial direction of the circle formed by the rotation of the winding drum, which is also the radial direction of the unwinding belt sound-generating component.

[0012] Furthermore, the sounding pawl is provided with a single pawl tooth or a group of pawl teeth; and the winding reel is correspondingly provided with a single sounding groove or a group of sounding grooves.

[0013] "A single sounding groove or a group of sounding grooves is correspondingly arranged on the winding reel" means that in order to cooperate with the single ratchet tooth or the ratchet tooth group on the sounding pawl, a single sounding groove or a group of sounding grooves is correspondingly arranged on the winding reel, but the number of single sounding grooves or the group of sounding grooves is not limited. The number of single sounding grooves or the group of sounding grooves can be only one or more, which can correspond to the number of sounding ratchets or can be a multiple of the number of sounding ratchets; as long as the single sounding groove or the group of sounding grooves can cooperate with the ratchet tooth or the ratchet tooth group on the single sounding pawl, it will be fine.

[0014] Furthermore, the ratchet teeth group includes a plurality of ratchet teeth arranged adjacent to each other, and the sounding groove group includes a plurality of sounding grooves arranged adjacent to each other. Here, "plurality" means more than two.

[0015] Preferably, the unwinding belt sounding assembly comprises one or more sounding pawls.

[0016] More preferably, the one or more click ratchets are evenly spaced apart in the circumferential direction.

[0017] Furthermore, the sounding grooves on the winding drum are arranged at intervals with a single sounding groove or a sounding groove group as groove structure units, and the number of groove structure units is a multiple of the number of the sounding pawls. In this way, each sounding pawl has a corresponding groove structure unit to cooperate with the sound, and after the winding drum rotates a certain angle, each sounding pawl can cooperate with the corresponding groove structure unit to make a sound; and the overall structure is stable, and the sound produced is crisp and audible.

[0018] Furthermore, the sounding pawl is integrally formed on the shell, or is separately formed and then connected to the shell.

[0019] Furthermore, the sounding pawl is separately formed and circumferentially fixed to the shell in a key connection manner.

[0020] Preferably, the sounding pawl and the housing are circumferentially fixedly connected through the cooperation of the positioning groove and the positioning protrusion.

[0021] Furthermore, when the winding drum is subjected to a rotational force, the sounding pawl and the sounding groove are configured to be unable to prevent the winding drum from rotating relative to the housing. Wherein, "the winding drum is subjected to a rotational force" includes applying a rotational force to the winding drum through a lacing device, applying a rotational force to the winding drum through a force-applying member of a lacing device, etc.; "the rotation of the winding drum relative to the housing" in "the sounding pawl and the sounding groove are configured to be unable to prevent the winding drum from rotating relative to the housing" includes both the rotation of the winding drum relative to the housing in the direction of winding the belt and the rotation of the winding drum relative to the housing in the direction of unwinding the belt.

[0022] Furthermore, the tooth tip of the ratchet tooth is configured into a symmetrical structure or a substantially symmetrical structure, and the sounding groove is adapted to the structure of the ratchet tooth to allow the winding drum to rotate relative to the housing in a winding direction or a loosening direction.

[0023] The "symmetrical structure or substantially symmetrical structure" means that the shape is symmetrical or substantially symmetrical.

[0024] Preferably, the pawl teeth and the sounding groove are engaged in a form-fitting manner.

[0025] Furthermore, the sounding pawl is a single cantilever pawl, one end of the single cantilever pawl is connected to the housing, and the end of the movable end of the single cantilever pawl is provided with the pawl teeth.

[0026] Preferably, the meshing direction of the pawl teeth of the single cantilever pawl and the sounding groove is axial meshing.

[0027] Furthermore, the shell further comprises an annular platform, the annular platform is located at one end of the shell, the single cantilever pawl and the annular platform are an integrally formed structure, and the pawl teeth protrude toward the inside of the shell along the axial direction of the shell.

[0028] Preferably, the meshing direction of the pawl teeth of the single cantilever pawl and the sounding groove is axial meshing.

[0029] Further, the single cantilever pawl is arranged close to the inner ring of the annular platform and extends along the circumference of the annular platform, and one end of the single cantilever pawl is connected to the annular platform.

[0030] Furthermore, in other embodiments of the present application, a hollow area is provided on the middle ring area of ​​the annular platform, and the single cantilever pawl is disposed in the hollow area and one end of the pawl is connected to the annular platform.

[0031] Furthermore, the sounding ratchet is a double-arm elastic ratchet, and the ratchet teeth are located in the middle of the double-arm elastic ratchet.

[0032] Preferably, the meshing direction of the pawl teeth of the double-arm elastic pawl and the sounding groove is radial meshing or axial meshing.

[0033] Furthermore, the unwinding belt sound-generating assembly includes one or more double-arm elastic pawls, and the one or more double-arm elastic pawls are interconnected to form an elastic pawl ring, and the elastic pawl ring is installed in the shell.

[0034] Preferably, the elastic pawl ring is circumferentially fixed in the housing in a keyed manner.

[0035] Furthermore, the elastic ratchet ring and the housing are circumferentially fixedly connected through the cooperation of the positioning groove and the positioning protrusion.

[0036] Preferably, the meshing direction of the ratchet teeth of the elastic ratchet ring and the sounding groove is radial meshing.

[0037] Furthermore, each of the double-arm elastic pawls is evenly distributed on the elastic pawl ring, and each of the sounding grooves or sounding groove groups is evenly distributed on the winding drum.

[0038] Preferably, a positioning groove is provided at the connection between two adjacent double-arm elastic pawls in the elastic pawl ring, and a positioning protrusion is provided at the inner side of the shell at a position corresponding to the positioning groove, and the positioning groove cooperates with the positioning protrusion to install and position the elastic pawl ring.

[0039] The positions of the sounding pawl and the sounding groove in the above-mentioned unwinding belt sounding assembly can be interchanged, so the utility model also provides a unwinding belt sounding assembly, including: a shell, a winding drum and a sounding pawl, the winding drum and the shell are relatively rotatably connected, and the sounding pawl and the winding drum are circumferentially fixedly connected;

[0040] The sounding pawl is provided with pawl teeth, and the shell is correspondingly provided with a sounding groove. The pawl teeth cooperate with the sounding groove to form a sounding structure, and the sounding structure is constructed to produce an audible sound in response to the rotation of the winding drum along the winding direction, and to produce an audible sound in response to the rotation of the winding drum along the loosening direction.

[0041] In the unwinding belt sounding assembly provided in the present application, the sounding pawl is circumferentially fixedly connected to the shell or the winding drum, that is, the sounding pawl and the shell or the sounding pawl and the winding drum will not rotate relative to each other, omitting the driving mechanism of the unidirectional transmission in the prior art, and the structure is simpler and more stable.

[0042] The utility model also provides a lacing device including the above-mentioned unwinding belt sounding assembly, and the lacing device also includes: a non-return component, the non-return component is fixedly arranged on the housing;

[0043] The housing further comprises an annular platform, the anti-return member is arranged on a first end surface of the annular platform; the sounding pawl is integrally formed with the annular platform, or,

[0044] The sounding pawl is circumferentially fixedly connected to the second end surface of the annular platform.

[0045] Further, the anti-return component is one of an anti-return pawl, a swing arm elastic component, and a deflectable component, or a combination thereof. The anti-return component and other components form an anti-return mechanism, such as an anti-return pawl and a ratchet wheel forming an anti-return mechanism.

[0046] Furthermore, when the sounding pawl and the sounding groove are axially engaged, a hollow area is provided on the annular platform, the sounding pawl is arranged in the hollow area, and the anti-return member is located above or above the side of the sounding pawl. The axially engaged single cantilever pawl is arranged in the hollow area of ​​the annular platform, which saves space for a separate sounding pawl member. Compared with the radially engaged sounding pawl, the axial height of the lacing device is reduced, which is more conducive to miniaturization.

[0047] Furthermore, the sounding pawl is integrally formed in the hollow area or fixedly arranged in the hollow area.

[0048] Preferably, the sounding pawl is configured to be elastically displaced to a critical position along the axial direction of the shell in the hollow area, and the critical position is flush with or lower than the first end surface of the annular platform.

[0049] Since the highest axial position (critical position) reached by the axially engaged sounding pawl when it undergoes elastic displacement is lower than or flush with the first end face of the annular platform, and the anti-return component is arranged on the first end face, the elastic displacement of the anti-return component will not hinder the elastic deformation of the anti-return component; this ingenious structural design avoids the problem of mutual interference between the sounding pawl and the anti-return component, integrates the sounding functional component and the anti-return functional component into one, simplifies the structural composition of the lacing device, and is also conducive to the stable realization of various functions.

[0050] Preferably, the bottom surface of the axially engaged sounding pawl is flush with the second end surface of the annular platform, and the thickness of the axially engaged sounding pawl is less than the height of the hollow area. That is, the thickness of the axially engaged sounding pawl is less than the thickness of the annular platform.

[0051] Preferably, when the meshing direction of the pawl teeth of the sounding pawl and the sounding groove is radial meshing, the sounding pawl is circumferentially fixedly connected to the second end surface of the annular platform.

[0052] Preferably, the elastic pawl ring is circumferentially fixedly connected to the second end surface of the annular platform of the housing through the cooperation of the positioning groove and the positioning protrusion.

[0053] The anti-return mechanism including the anti-return component is used to control the lacing device so that the winding reel can only rotate in one direction relative to the housing in the belt winding mode.

[0054] Further, the lacing device also includes a rotary cover, a ratchet is disposed inside the rotary cover, and the rotary cover is operably connected to the winding drum;

[0055] The anti-return component is an anti-return pawl, and when the rotary cover is connected to the winding drum, the anti-return pawl is engaged with the ratchet wheel, so that the rotary cover and the winding drum can only rotate relative to the housing in the belt winding direction;

[0056] When the rotary cover is disconnected from the winding drum, the anti-return pawl is disengaged from the ratchet wheel, and the winding drum can rotate freely relative to the housing.

[0057] The utility model has the following beneficial effects:

[0058] 1. The sounding pawl is fixedly connected to the housing or the winding drum in the circumferential direction, and the sounding groove is correspondingly arranged on the winding drum or the housing, so that the relative movement of the sounding pawl and the sounding groove is consistent with the relative movement of the winding drum and the housing. This structure is relatively simple, and there will be no slipping problem that may exist when the sounding pawl is driven in one direction, and the structure is more stable and reliable;

[0059] 2. The sound-generating component of the unwinding belt can emit a sound perceptible to the user in response to the winding and unwinding of the belt;

[0060] 3. The sounding grooves are repeatedly arranged at intervals in units of groove structure, so that after the winding drum rotates through a certain angle, the sounding grooves will engage with the ratchet teeth on the sounding ratchet again to make sounds, thereby avoiding the sounds caused by slight adjustments to the tightness of the laces; compared with setting a circle of sounding grooves, the application scenarios of the winding and loosening belt sounding component provided by the utility model are wider and will not affect the user's normal walking. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] Figure 1 A schematic diagram of the exploded structure of the first embodiment of the unwinding belt sound-generating assembly provided by the utility model at one angle;

[0062] Figure 2 Schematic diagram of the exploded structure at different angles of the first embodiment of the unwinding belt sound-generating assembly provided by the utility model;

[0063] Figure 3 A schematic diagram of the exploded structure of the second embodiment of the unwinding belt sound-generating assembly provided by the utility model at one angle;

[0064] Figure 4 Schematic diagram of the exploded structure at different angles of the second embodiment of the unwinding belt sound-generating assembly provided by the utility model;

[0065] Figure 5 for Figure 3 A top view of the housing in the embodiment of the unwinding belt sound-generating assembly shown;

[0066] Figure 6a for Figure 5 Schematic diagram of the cross-sectional structure at AA in the middle;

[0067] Figure 6b for Figure 6a A partial enlarged view of the middle A;

[0068] Figure 7 A schematic diagram of the exploded structure of the third embodiment of the unwinding belt sound-generating assembly provided by the utility model at one angle;

[0069] Figure 8 Schematic diagram of the exploded structure at different angles of the third embodiment of the unwinding belt sound-generating assembly provided by the utility model;

[0070] Fig. 9 This is a schematic diagram of the structure of the housing and the anti-reverse pawl in the lacing device provided by the utility model;

[0071] Fig.10 for Fig. 9 Schematic diagram of the cross-sectional structure at BB in the middle;

[0072] Fig.11 A schematic diagram of the structure of some components of a lacing device including a loose-rolled belt sound-generating component provided by the utility model;

[0073] Fig.12 for Fig.11 Schematic diagram of the cross-sectional structure at CC in the middle.

[0074] Reference numerals:

[0075] Housing 10, annular platform 101, positioning protrusion 1011, buckle 1012, single cantilever pawl 102a, hollow area 102, elastic pawl ring 102b, double-arm elastic pawl 1021, pawl teeth 1021a, 1021b, elastic arm 1021c, positioning groove 1022;

[0076] The winding drum 20, the sounding grooves 201a, 201b, the annular groove 202, the cavity 203, the stopper 2031;

[0077] The anti-return pawl 30.

[0078] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0079] In order to make the technical personnel in the technical field better understand the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described in combination with the drawings in the embodiment of the present invention. Unless otherwise defined, all technical and scientific terms used in this article have the same meaning as those commonly understood by the technical personnel in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0080] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0081] It should be understood that the terms "up", "down", "left", "right", "front", "back", "length", "width", "horizontal", "vertical", "top", "bottom", "inside", "outside", etc. used in the description of the present invention to indicate the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are intended to facilitate the description of the present invention and simplify the description, and should not be understood as a restriction that the referred device or component must have a specific orientation or a specific position relationship.

[0082] In addition, the terms "first" and "second" are only used for distinguishing description purposes, without the connotation of relative importance, and do not indicate or imply the number of technical features. Therefore, the features defined by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly defined.

[0083] Unless otherwise specified, the terms "connection" and "fixation" in this utility model should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral molding; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0084] See also Figure 1 and Figure 2 The embodiment of the utility model provides a sound-generating component for an unwinding belt, comprising: a housing 10, a winding drum 20 and a sound-generating pawl; the winding drum 20 and the housing 10 are relatively rotatably connected, and the sound-generating pawl and the housing 10 are circumferentially fixedly connected. The sound-generating pawl is provided with a pawl tooth 1021a, and a sound-generating groove 201a is provided at a position corresponding to the pawl tooth 1021a of the winding drum 20, and the pawl tooth 1021a and the sound-generating groove 201a form a sound-generating structure, and the pawl tooth 1021a is in elastic contact with the surface of the winding drum 20, and the sound-generating pawl is used for relatively rotating between the winding drum 20 and the housing 10 through the pawl tooth 1021a and the sound-generating groove 201a engage with each other to produce a sound; specifically, when the winding drum rotates in the direction of winding the tape, the ratchet teeth and the sound-emitting groove engage and disengage to produce an audible sound; similarly, when the winding drum rotates in the direction of loosening the tape, the ratchet teeth and the sound-emitting groove also engage and disengage to produce an audible sound, that is, the sound-emitting mechanism is constructed to produce an audible sound in response to the rotation of the winding drum in the direction of winding the tape or in the direction of loosening the tape.

[0085] like Figure 1 and Figure 2As shown in , in one embodiment of the utility model, the sounding pawl is a single cantilever pawl 102a; one end of the single cantilever pawl 102a is fixedly connected to the main body of the housing 10, so the single cantilever pawl 102a and the housing 10 cannot rotate in the circumferential direction and remain relatively stationary; the other end of the single cantilever pawl 102a is a movable end, and the pawl tooth 1021a is located at the end of the movable end of the single cantilever pawl 102a. The housing 10 is provided with a mounting cavity inside, and the winding drum 20 is rotatably mounted in the mounting cavity. After the housing 10 and the winding drum 20 are relatively assembled, the upper surface of the winding drum 20 is in contact with the single cantilever pawl 102a. Since the single cantilever pawl 102a has a certain elasticity, the pawl tooth 1021a can be in elastic contact with the surface of the winding drum 20. During the relative rotation between the winding drum 20 and the housing 10, the winding drum 20 also rotates relative to the single cantilever pawl 102a. When the sounding groove 201a rotates to engage with the pawl tooth 1021a, the pawl tooth 1021a will hit the sounding groove 201a under the action of elastic force to produce a sound. In one embodiment of the utility model, the structural shape of the sounding groove 201a is adapted to the structure and shape of the outer surface of the pawl tooth 1021a to increase the elastic contact area between the pawl tooth 1021a and the sounding groove 201a, thereby producing a stable sound. Since the sounding pawl is directly arranged at the upper end of the inner cavity of the housing 10 and the sounding groove 201a is arranged on the winding drum 20, this structure is relatively simple, and the slipping problem existing in the driving structure of the one-way transmission will not occur, and the structure is stable and reliable.

[0086] like Figure 1 and Figure 2 As shown in , the shell 10 also includes an annular platform 101, and the single cantilever pawl 102a and the annular platform 101 are an integrally formed structure. The annular platform 101 is located at the top of the shell 10. The shell 10 can be integrally formed by various methods such as injection molding and glue pouring to form the annular platform 101 and the single cantilever pawl 102a. In this way, it can be ensured that the connection between the single cantilever pawl 102a and the annular platform 101 is more firm, and the single cantilever pawl 102a is not easily damaged during the elastic up and down movement of the single cantilever pawl 102a. In other preferred embodiments, the single cantilever pawl 102a and the shell can be separately molded and then positioned and installed.

[0087] like Figure 1 and Figure 2As shown in , there are multiple single cantilever pawls 102a and sounding grooves 201a, respectively. Each of the single cantilever pawls 102a is evenly distributed in the shell 10, and each of the sounding grooves 201a is evenly distributed on the winding reel 20. When the winding reel 20 and the shell 10 rotate relative to each other, the winding reel 20 and each single cantilever pawl 102a also rotate relative to each other. When the pawl teeth 1021a on each single cantilever pawl 102a are respectively engaged with the sounding groove 201a, each pawl tooth 1021a can simultaneously hit the sounding groove 201a under the action of elastic force to produce a loud sound. In this embodiment, each single cantilever pawl 102a is provided with a pawl tooth 1021a; in other embodiments, each single cantilever pawl 102a can be provided with a pawl tooth group consisting of a plurality of pawl teeth, and the corresponding winding reel is provided with a sounding groove group. Further preferably, as Figure 1 As shown, there are three single cantilever pawls 102a and they are evenly spaced along the circumference, and there are six sounding grooves 201a evenly spaced along the circumference. In other preferred embodiments, the number of sounding grooves 201a can be other multiples of the number of single cantilever pawls, and the multiples can be 1, 2, 3, .... With such an arrangement, multiple sounds can be generated during one circle of relative rotation between the winding drum 20 and the shell 10, and the output sound is a regular clicking sound. The sounding groove 201 at most goes around the annular platform 101 of the shell. However, preferably, the sounding grooves are spaced apart, and the central angles corresponding to adjacent sounding grooves can be any angle between 30° and 120°, such as Figure 1 and 2 As shown in the figure, the central angle of adjacent sounding grooves is 60°. The intervals between the sounding grooves make the winding drum make a sound only after it has rotated a certain angle, thus preventing the user from making a clicking sound due to the fine adjustment of the tightness of the laces during normal walking. If the sounding grooves are arranged around the annular platform, the user will also make a sound during normal walking, which is not suitable for use in places that require quietness, has a poor experience, and has a narrow scope of application.

[0088] See also Figures 1 to 4 In another embodiment of the present invention, the specific positions of the single cantilever pawl 102a and the sounding groove 201a can be adjusted according to design requirements. Figure 1 and Figure 2 As shown in , the sounding groove 201a is located on the upper surface of the winding drum 20 and close to the inner ring; correspondingly, the single cantilever pawl 102a is also located at the inner circumference of the annular platform at the top of the housing 10. Figure 3 and Figure 4As shown in , the sounding groove 201a is located on the upper surface of the winding drum 20 and close to the outer ring; correspondingly, the single cantilever pawl 102a is located at the middle ring position of the annular platform at the top of the shell 10; specifically, as Figure 3 As shown, the annular platform 101 is provided with a hollow area 102 , and the single cantilever pawl 102 a is disposed in the hollow area 102 . Figure 1 and Figure 3 The difference between the illustrated embodiments is that, when the single cantilever pawl 102a is close to the inner ring, the radial inward displacement of the single cantilever pawl 102a toward the shell 20 is not restricted; and when the single cantilever pawl 102a is arranged at the middle ring position of the annular platform, the radial inward and outward displacements of the single cantilever pawl 102a toward the shell 20 are restricted, so that the single cantilever pawl 102a will not undergo excessive elastic displacement due to external force, which is more conducive to the stability of the sound-generating structure.

[0089] in addition, Figures 1 to 4 In the two embodiments shown, the ratchet teeth 1021a and the sound-generating grooves are constructed so as not to hinder the rotation of the winding reel in the shell so that sound can be generated when the winding reel 20 and the shell 10 rotate relative to each other in both forward and reverse directions. Preferably, the tooth tip angle of the ratchet tooth 1021 is a right angle or an obtuse angle, and the tooth wall of the ratchet tooth close to the free end of the ratchet is the first tooth wall T1, and the other tooth wall is T2, wherein the first tooth wall T1 is longer than the second tooth wall T2, and the angle between the first tooth wall T1 and the high line passing through the tooth tip and the tooth top is greater than the angle between the second tooth wall T2 and the high line. Preferably, the angle between the bisector passing through the tooth tip and the high line ranges from 0°≤α≤5°. Specifically, as Figure 5 and Figure 6a , 6bAs shown, in the second embodiment, the angle α between the bisector P passing through the tooth top and the high line H in the tooth tip of the pawl tooth is 3.5°. When the winding drum rotates clockwise, the force applied by the sounding groove to the single cantilever pawl causes the pawl cantilever to be tensioned; when the winding drum rotates counterclockwise, the force applied by the sounding groove to the single cantilever pawl causes it to be compressed. Since the pawl teeth of the single cantilever pawl are only constrained on one side, the compression force applied to the cantilever may cause the pawl teeth and the groove to get stuck during the process of disengagement or re-engagement. Therefore, through the structural setting of the pawl teeth, when the T1 tooth wall is used as the force transmission surface, the inclined surface of the T1 tooth wall is designed to be more gentle and have a long stroke, which is conducive to guiding the pawl teeth to disengage from the sounding groove, so that the winding drum 20 will not generate a large blocking force when rotating clockwise or counterclockwise relative to the housing 10, causing the winding drum 20 to rotate poorly or even unable to rotate. When the winding drum 20 rotates clockwise or counterclockwise relative to the housing 10, the ratchet teeth 1021a can hit the sound-generating groove 201a under the action of elastic force to generate sound. In this way, since the winding drum 20 can generate sound when rotating in both positive and negative directions relative to the housing 10, when used, regardless of whether the winding drum rotates clockwise or counterclockwise, the sound-generating mechanism allows the user of the lacing device to perceive the sound of winding and loosening the lacing, greatly improving the user experience.

[0090] Furthermore, Figures 1 to 4 In the embodiment shown, see Figure 5 and Figure 6a , 6b The ratchet teeth 1021a protrude toward the inside of the shell along the axial direction OO and axially mesh with the sounding groove 201a. In the present application, the axial directions of the shell 10 and the winding drum 20 are collinear. In other preferred embodiments, a double-arm elastic ratchet can also be provided in the hollow area 102 of the annular platform 101 of the shell, and the ratchet teeth of the double-arm elastic ratchet can also be provided to protrude toward the inside of the shell along the axial direction OO. The double-arm elastic ratchet can be formed separately and then installed and positioned on the annular platform 101, or it can be formed integrally with the annular platform.

[0091] See also Figure 7 and Figure 8 In another embodiment of the present invention, the sounding pawl is constructed as an elastic pawl ring 102b, and the elastic pawl ring 102b is installed in the housing 10; the elastic pawl ring 102b includes a double-arm elastic pawl 1021, and the pawl teeth 1021b are located in the middle of the inner side of the double-arm elastic pawl 1021. Figure 7 and Figure 8 As shown in Figures 1 to 4 The two embodiments are different, Figures 1 to 4The sounding pawls of the two embodiments both adopt an integrally formed structure, and the single cantilever pawl 102a as the sounding pawl is formed between the annular platform 101 through an integrally formed process. In this embodiment, the structure of the sounding pawl is realized by using a separate component, the elastic pawl ring 102b, wherein the elastic pawl ring 102b may be provided with one or more double-arm elastic pawls 1021. The double-arm elastic pawls 1021 are connected by a connecting portion to form an elastic pawl ring 102b with an annular structure. The elastic pawl ring 102b may be formed by an integrally formed process. The outer diameter of the elastic pawl ring 102b is adapted to the inner diameter of the shell 10, so that the elastic pawl ring 102b can be installed in the shell 10 close to the inner wall of the shell 10. In this way, when the winding drum 20 rotates relative to the housing 10, since the elastic pawl ring 102b is circumferentially fixed to the housing, the elastic pawl ring 102b cannot rotate either, and the winding drum can rotate relative to the elastic pawl ring 102b, and the pawl teeth 1021b on the inner side of the double-arm elastic pawl 1021 can engage with the sound-generating groove 201a on the outer side of the winding drum 20 to produce a sound. When the winding drum rotates, the elastic arms 1021c of the double-arm elastic pawl 1021 are radially offset and deformed inwardly and outwardly, so that the pawl teeth 1021b and the sound-generating groove 201a continuously engage and disengage, thereby producing a sound. Preferably, as Figure 7 As shown, the elastic arm 1021c is constructed in the shape of a serpentine spring. Since the elastic arms 1021c on both sides of the ratchet tooth 1021b are symmetrical structures and the ratchet tooth is preferably a symmetrical structure, no matter whether the winding drum rotates clockwise or counterclockwise, the ratchet tooth 1021b is subject to the dual constraints of the elastic arms on both sides, and is not easy to get stuck during the process of the ratchet tooth-sounding groove engagement and disengagement; and the elastic arm on one side of the ratchet tooth 1021b is subjected to tensioning force, and the elastic arm on the other side is subjected to compression force, and the forces are basically the same, so that the sound emitted by the sounding structure when the winding drum rotates in both directions is basically the same, and the rotation smoothness is also basically the same. In other embodiments, the elastic arms of the double-arm elastic ratchet can also be other structures or shapes, as long as radial offset can be achieved. Furthermore, in this embodiment, the ratchet tooth 1021b and the sounding groove 201a on the outside of the winding drum 20 are radially engaged, that is, the ratchet tooth 1021b protrudes inward along the radial direction RR of the elastic ratchet ring 102b, such as Figure 7 As shown, the radial direction of the elastic pawl ring 102 b is colinear with the radial direction of the housing 10 .

[0092] like Figure 7 and Figure 8As shown, the elastic pawl 1021 and the sounding groove 201b are provided in plurality, and each of the two-arm elastic pawls 1021 is evenly distributed on the elastic pawl ring 102b, and each of the sounding grooves 201b is evenly distributed on the winding drum 20. When the winding drum 20 and the housing 10 rotate relative to each other, the winding drum 20 and the elastic pawl ring 102b rotate relative to each other. When the winding drum rotates to the point where the pawl teeth 1021b on each elastic pawl 1021 are engaged with the corresponding sounding groove 201b, each pawl tooth 1021b can simultaneously hit the sounding groove 201b under the action of the elastic force to produce a louder sound. Among them, the number of the sounding grooves 201b is a multiple of the two-arm elastic pawl 1021, which can be specifically referred to Figures 1 to 4 The number of the two is set in the embodiment shown. In this way, during the relative rotation of the winding drum 20 and the housing 10, multiple sounds can be generated, so that the output sound is a regular clicking sound. In other preferred embodiments, whether it is a single cantilever pawl or a double-arm elastic pawl, one or more pawl teeth can be provided on the pawl, and the pawl teeth on each single cantilever pawl or double-arm elastic pawl constitute a pawl tooth group. Correspondingly, the groove on the winding drum is set as a sounding groove or a sounding groove group, and the pawl teeth cooperate with the sounding groove, and the pawl tooth group cooperates with the sounding groove group. Figures 1 to 8 The single cantilever pawl and the double-arm elastic pawl shown in the illustrated embodiment are both provided with only one pawl tooth, and the winding drum also has a single sounding groove arranged at intervals. In other preferred embodiments, the single cantilever pawl or the double-arm elastic pawl is provided with a pawl tooth group (for example, two pawl teeth constitute a pawl tooth group), and correspondingly, the winding drum is provided with a sounding groove group (two sounding grooves as a group), and the sounding groove group constitutes a groove structural unit, which is repeatedly arranged at intervals on the winding drum, wherein the number of sounding groove groups can be set to a multiple of the number of pawl tooth groups, and the multiple range refers to the setting of the multiple of the number of sounding grooves-pawl teeth above.

[0093] like Figure 7 and Figure 8As shown, the ratchet teeth 1021b and the sounding groove 201b are configured to be compatible with each other in a symmetrical structure, so that the winding drum 20 can rotate relative to the housing 10 in both positive and negative directions. Through the symmetrical structure of the ratchet teeth 1021b and the symmetrical structure of the sounding groove 201b, the winding drum 20 and the housing 10 can rotate clockwise or counterclockwise without generating excessive blocking force to prevent the winding drum 20 from rotating. When the winding drum 20 rotates clockwise or counterclockwise relative to the housing 10, the ratchet teeth 1021b can hit the sounding groove 201b under the action of elastic force to generate sound. In this way, since the winding drum 20 can generate sound when rotating relative to the housing 10 in both positive and negative directions, the lacing device can generate sound for the user to perceive when winding the lacing and loosening the lacing.

[0094] See also Figure 8 A positioning groove 1022 is provided at the connection between two adjacent double-arm elastic pawls 1021 in the elastic pawl ring 102b, and one or more positioning protrusions 1011 are provided on the inner side of the housing 10 opposite to the positioning groove 1022. The positioning groove 1022 cooperates with the positioning protrusion 1011 to install and position the elastic pawl ring 102b to achieve a circumferential fixed connection between the elastic pawl ring 102b and the housing 10. The positioning groove 1022 and the positioning protrusion 1011 can be used to locate the installation position when installing the elastic pawl ring 102b, so that the elastic pawl ring 102b can be installed at a predetermined position on the inner wall of the housing 10 to avoid installation deviation.

[0095] See also Fig. 9 and Fig.10 The utility model also provides an embodiment of a lacing device including the unwinding tape sounding assembly, and the lacing device also includes a non-return component. Preferably, the non-return component is a non-return pawl 30, and the non-return pawl 30 is installed on the outer side of the annular platform at the top of the shell 10, and the non-return pawl 30 cooperates with the ratchet to control the unidirectional rotation of the ratchet. When the ratchet is linked with the winding drum, the unidirectional rotation of the winding drum is further controlled. The working principle of the non-return pawl can be found in patent CN208993976U. The non-return pawl 30 will be radially offset inward in the working state. When the ratchet is disengaged from the winding drum, the sounding pawl-sounding groove will not hinder the rotation of the winding drum relative to the shell, and the winding drum can rotate in both directions. Fig. 9 and Fig.10As shown in , the non-return pawl 30 is installed at a position outside the top of the shell 10, adjacent to the single cantilever pawl 102a and located outside or above the single cantilever pawl 102a. As the winding reel 20 and the shell 10 rotate relative to each other, the single cantilever pawl 102a will elastically move up and down under the action of the sound-generating groove 201a. When the single cantilever pawl 102a moves axially toward the non-return pawl 30, it is possible to collide with the non-return pawl 30, thereby affecting each other. In order to reduce or avoid the mutual influence between the two, a certain space needs to be reserved on the upper surface of the single cantilever pawl 102a and the lower surface of the non-return pawl 30. As shown in Fig.10 As shown in , the reserved space can be formed when the shell 10 adopts an integrated molding process, that is, the upper surface of the single cantilever pawl 102a is at a certain axial distance difference δH from the upper surface of the annular platform of the shell 10. In this way, it can be ensured that the axial up and down movement of the single cantilever pawl 102a will not conflict with the anti-return pawl 30 on the upper surface of the shell 10, and thus will not affect each other; even if the anti-return pawl is radially offset inward while the sounding pawl jumps axially upward, the two can avoid conflict and thus do not interfere with each other. The specific implementation process can be to make the bottom surface of the single cantilever pawl flush with the bottom surface of the annular platform, and the thickness of the single cantilever pawl is set to be thinner, which is smaller than the thickness of the annular platform. In this way, the axial elasticity of the single cantilever pawl can be ensured, and the height difference between the upper surface of the single cantilever pawl 102a and the upper surface of the annular platform 101 can be constructed. The setting of this height difference can be confirmed according to the amplitude of the upward movement of the single cantilever pawl in actual applications. Such a configuration ensures that no matter whether the anti-return pawl is arranged directly above or above the sounding pawl, the deformation and displacement of the anti-return pawl will not be affected by the upward elastic displacement of the sounding pawl, thereby ensuring the normal operation of the lacing device. On the other hand, the axially engaged single cantilever pawl is arranged in the hollow area of ​​the annular platform, so that the structural function is highly integrated and the space utilization rate is high, and the space for separately arranging the sounding pawl is omitted. Compared with the radially engaged sounding pawl, the axial height of the lacing device is reduced, which is more conducive to the miniaturization of the lacing device. Furthermore, the anti-return pawl 30 can set the relative rotation direction of the housing 10 and the winding drum 20 according to actual application requirements. For example, in one embodiment, a clockwise rotation mode can be adopted as the winding direction of the lacing device; and in another embodiment, a counterclockwise rotation mode can be adopted as the winding direction of the lacing device. In other embodiments, the anti-return component can also be the swing arm elastic component in patent CN116509108A, or the deflectable component in patent CN 202420057882.4.

[0096] See also Fig.11 and Fig.12The inner wall of the housing 10 is provided with a buckle 1012, and the winding drum 20 is provided with an annular groove 202 at a position opposite to the buckle 1012. The annular groove 202 is used to accommodate the lace, and the buckle 1012 and the annular groove 202 are mutually engaged to connect the winding drum 20 and the housing 10 to be relatively rotatable. Fig.12 As shown in , an annular groove 202 is provided on the outer side of the winding drum 20, and a buckle 1012 is provided on the inner side of the housing 10 at a position corresponding to the upper flange of the annular groove 202. When the winding drum 20 is installed in the housing 10, the winding drum 20 can be pushed into the housing 10, and the buckle 1012 can be used to rotatably set the winding drum 20 in the housing 10 and limit the axial displacement of the winding drum.

[0097] Furthermore, the lacing device provided in the present application also includes a coil spring, such as Figure 4 As shown, the coil spring can be arranged in a cavity 203 surrounded by the lower end surface of the winding drum. The working principle and setting method of the coil spring can be found in patent CN202410798218.X, wherein in the present application, there is a block 2031 in the retaining wall of the lower end surface of the winding drum, and the free end of the block 2031 is arranged as an inclined surface to facilitate the winding of the coil spring when it is initially placed.

[0098] Among them, the relative rotation between the sounding pawl and the sounding groove can be that the sounding pawl rotates and the sounding groove does not move, or that the sounding pawl does not move and the sounding groove rotates; in the above embodiments, the sounding pawl is circumferentially fixed to the shell, so it cannot rotate, and the sounding groove is arranged on the winding drum and is driven to rotate; in other embodiments, the sounding groove can also be arranged on the shell and remain stationary, and the sounding pawl is circumferentially fixed to the winding drum and is driven to rotate, which can also play the function of the sounding structure.

[0099] The above are only embodiments of the utility model, but they do not limit the patent scope of the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above specific implementations, or replace some of the technical features therein with equivalents. Any equivalent structure made by using the contents of the utility model specification and drawings, directly or indirectly used in other related technical fields, is also within the scope of protection of the utility model patent.

[0100] In the description of this specification, the description with reference to 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. In this specification, the schematic representation 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.

[0101] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A loose belt sounding component, characterized in that: include: A housing, a winding drum and a sounding pawl, wherein the winding drum and the housing are rotatably connected relative to each other, and the sounding pawl and the housing are circumferentially fixedly connected; The sounding pawl is provided with pawl teeth, and the winding drum is correspondingly provided with a sounding groove. The pawl teeth cooperate with the sounding groove to form a sounding structure, and the sounding structure is constructed to produce an audible sound in response to the rotation of the winding drum along the winding direction, and to produce an audible sound in response to the rotation of the winding drum along the loosening direction.

2. The unwinding belt sound-generating assembly according to claim 1, characterized in that: The sounding pawl is provided with a single pawl tooth or a group of pawl teeth; the winding drum is correspondingly provided with a single sounding groove or a group of sounding grooves.

3. The unwinding belt sound-generating assembly according to claim 2, characterized in that: The sounding grooves on the winding drum are repeatedly arranged at intervals with a single sounding groove or a sounding groove group as groove structure units, and the number of the groove structure units is a multiple of the number of the sounding ratchets.

4. The unwinding belt sound-generating assembly according to claim 1, characterized in that: The sounding pawl is integrally formed on the shell, or is separately formed and then connected to the shell.

5. The unwinding belt sound-generating assembly according to claim 1, characterized in that: When the winding reel is subjected to a rotational force, the clicking pawl and the clicking groove are configured to be unable to prevent the winding reel from rotating relative to the housing.

6. The unwinding belt sound-generating assembly according to claim 1, characterized in that: The sounding pawl is a single cantilever pawl, one end of which is connected to the shell, and the end of the movable end of the single cantilever pawl is provided with the pawl teeth, and the pawl teeth and the sounding groove can be meshed with each other, and the meshing direction is axial meshing or radial meshing.

7. The unwinding belt sound-generating assembly according to claim 1, characterized in that: The sounding pawl is a double-arm elastic pawl, both ends of which are connected to the shell, and the pawl teeth are located in the middle of the double-arm elastic pawl. The pawl teeth and the sounding groove can engage with each other, and the engagement direction is axial engagement or radial engagement.

8. The unwinding belt sound-generating assembly according to claim 7, characterized in that: One or more double-arm elastic pawls are provided, and the one or more double-arm elastic pawls are connected to each other to form an elastic pawl ring, and the elastic pawl ring is installed in the shell.

9. A loose-rolled belt sound-generating component, characterized in that: include: A housing, a winding drum and a sounding pawl, wherein the winding drum and the housing are rotatably connected to each other, and the sounding pawl and the winding drum are circumferentially fixedly connected; The sounding pawl is provided with pawl teeth, and the shell is correspondingly provided with a sounding groove. The pawl teeth cooperate with the sounding groove to form a sounding structure, and the sounding structure is constructed to produce an audible sound in response to the rotation of the winding drum along the winding direction, and to produce an audible sound in response to the rotation of the winding drum along the loosening direction.

10. A lacing device comprising the unwinding tape sound-generating assembly according to claim 1, characterized in that: The lacing device further comprises: a non-return member, the non-return member being fixedly disposed on the housing; The housing further comprises an annular platform, the anti-return member is arranged on a first end surface of the annular platform; the sounding pawl is integrally formed with the annular platform, or, The sounding pawl is circumferentially fixedly connected to the second end surface of the annular platform.

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