Fastening device and article having same

Abstract

The present application relates to the technical field of lacing articles, and provides a fastening device and an article having same. The fastening device comprises a rotating assembly and a base assembly. The rotating assembly comprises a rotating member and a sliding seat, the sliding seat is used for being connected to a strap member and is provided with an accommodating cavity, the sliding seat is provided with an opening, a part of the rotating member is arranged in the accommodating cavity, and a gear is arranged on the rotating member. The base assembly comprises a base body, the base body is slidably connected to the sliding seat, the base body is provided with a slideway, slots are formed in the slideway, the gear can be engaged with the slots, and the rotating member rotates to enable the gear to move along the plurality of slots. In the fastening device provided by the present application, the rotating member can be driven to rotate in a first preset rotation direction to drive the gear to move along the plurality of slots, thereby achieving length adjustment of the strap member, facilitating tightness adjustment of the article, and improving product convenience.

Description

Fastening devices and articles having fastening devices

[0001] Cross-reference to related applications

[0002] This application claims priority to Chinese Patent Application No. 2024115774009, filed on November 6, 2024, entitled "Article with a fastening device and fastening device thereof", filed on July 22, 2025, entitled "A fastening device and an article with a fastening device", and filed on September 16, 2025, entitled "A fastening device and an article with a fastening device", the entire contents of which are incorporated herein by reference. Technical Field

[0003] This invention relates to the field of strapping technology, and more particularly to a fastening device and an article having a fastening device. Background Technology

[0004] In related technologies, the length adjustment of webbing on items with fastening devices typically uses D-rings, adjusting cords, or similar methods to control the extension or contraction of the webbing, thereby achieving the webbing length adjustment function. However, this adjustment method is inconvenient to operate, especially for the elderly and children, affecting the user's wearing experience.

[0005] Application content

[0006] In view of this, the purpose of this application is to overcome the shortcomings of the prior art and to provide a fastening device and an article having a fastening device.

[0007] To achieve the above objectives, the technical solution adopted in this application is as follows:

[0008] In a first aspect, embodiments of this application provide a fastening device for articles having a fastening mechanism, used for adjusting the tightness of articles using straps, the fastening device having a first direction and a second direction perpendicular to each other, the fastening device comprising:

[0009] A rotating assembly includes a rotating component and a sliding seat. The sliding seat is used to connect to one end of the strip and is provided with a receiving cavity. Along the first direction, openings communicating with the receiving cavity are respectively opened on opposite sides of the sliding seat. A portion of the rotating component is disposed in the receiving cavity, and at least one gear is provided on the rotating component.

[0010] A base assembly includes a base body and a sliding seat that are slidably connected along a second direction. A guide platform is provided on the side of the base body facing the sliding seat. Two guide platforms are symmetrically arranged on the base body, and a slide rail is formed between the two guide platforms. Along the second direction, the groove wall of the slide rail is provided with multiple slots. The gear can mesh with the slots. Under the action of external force, the rotating member rotates to make the gear move along the multiple slots, so as to realize that the sliding seat moves relative to the base body along the second direction to drive the belt member to move.

[0011] The rotating component or the base component is provided with a strap for connecting the strap.

[0012] The fastening device provided in this application is used to adjust the tightness of articles with strips, that is, to adjust the length of the strip on the article. When it is necessary to adjust the length of the strip on the article, the drive rotating component rotates along a first preset rotation direction to drive the gear to move along multiple slots, so as to realize the movement of the sliding seat relative to the base body, thereby driving the strip to move, and thus realizing the length adjustment of the strip, that is, the tightness adjustment, which facilitates the tightness adjustment of the article and improves the convenience of the product.

[0013] In addition, the fastening device according to this application may also have the following additional technical features:

[0014] In one embodiment of the first aspect, the rotating assembly further includes a first magnetic element disposed on the rotating assembly;

[0015] The base assembly further includes a second magnetic element disposed on the base body. The second magnetic element is magnetically connected to the first magnetic element, so that the rotating assembly is detachably connected to the base assembly and the initial position of the rotating assembly and the base assembly is positioned.

[0016] In one embodiment of the first aspect, the base body is provided with a mounting groove for mounting the second magnetic element, the mounting groove being located on the side of the base body away from the slide.

[0017] In one embodiment of the first aspect, the mounting groove is formed by a recess in the groove on the bottom surface of the base body facing away from the rotating member and towards the rotating member.

[0018] In one embodiment of the first aspect, the base body is provided with a mounting groove for mounting the second magnetic element, the mounting groove being located within the slide rail.

[0019] In one embodiment of the first aspect, the opening of the mounting groove is positioned facing one side of the rotating member.

[0020] In one embodiment of the first aspect, the base body is provided with a protrusion located within the slide rail, and the mounting groove is formed in the protrusion.

[0021] In one embodiment of the first aspect, the height of the protrusion along the first direction is less than the depth of the slide.

[0022] In one embodiment of the first aspect, the mounting groove is formed by the bottom surface of the base body recessing into the slide.

[0023] In one embodiment of the first aspect, the mounting groove is a stepped hole groove, the stepped hole groove including a first hole segment and a second hole segment, the diameter of the first hole segment being larger than the diameter of the second hole segment, and the second magnetic element matching the shape of the stepped hole groove.

[0024] In one embodiment of the first aspect, the stepped groove has a through hole at the bottom of the groove along the first direction.

[0025] In one embodiment of the first aspect, the base body has a recess, which is located within the slide rail or on the side of the base body away from the slide rail. A mounting groove is formed within the recess, and the second magnetic component is mounted within the mounting groove.

[0026] In one embodiment of the first aspect, the opening of the mounting groove is oriented toward the side away from the rotating member.

[0027] In one embodiment of the first aspect, the recess is provided with a protrusion, and the mounting groove is formed in the protrusion.

[0028] In one embodiment of the first aspect, the height of the protrusion along the first direction is less than the depth of the recess.

[0029] In one embodiment of the first aspect, the mounting grooves are provided in a plurality of locations on the base body along the second direction.

[0030] In one embodiment of the first aspect, a limiting portion is provided on the base body, and the limiting portion is provided along the outer wall of the slide rail;

[0031] The sliding seat is provided with a hook portion. When the sliding seat moves relative to the base body, the hook portion can abut against the limiting portion and can move along the second direction. The limiting portion is used to restrict the sliding seat from moving along the first direction.

[0032] In one embodiment of the first aspect, the limiting portion includes a first limiting segment and a second limiting segment, the first limiting segment being disposed along the second direction, the second limiting segment being disposed at the end of the first limiting segment away from the second magnetic element, and the second limiting segment being disposed at an angle to the first limiting segment.

[0033] In one embodiment of the first aspect, the shape of the first limiting segment corresponds to that of the base body, and the first limiting segment is configured as a straight line segment or an arc segment.

[0034] In one embodiment of the first aspect, the second limiting segment is disposed perpendicular to the first limiting segment.

[0035] In one embodiment of the first aspect, along the second direction, the length of the first limiting segment is less than the length of the slide.

[0036] In one embodiment of the first aspect, the end of the first limiting segment away from the second limiting segment is formed with an arc-shaped chamfer.

[0037] In one embodiment of the first aspect, the base body is further provided with a stop portion, the stop portion is disposed at one end of the outer wall of the slide along the second direction, the limiting portion is disposed along the second direction on the outer wall of the slide, and a clearance space is defined between one end of the limiting portion and the stop portion, and the end of the limiting portion away from the stop portion extends along the second direction to the end of the outer wall of the slide.

[0038] In one embodiment of the first aspect, the stop portion is provided with a snap-fit ​​surface on the side facing the limiting portion, and the hook portion can engage with the snap-fit ​​surface at one end of the sliding seat and the strip along the second direction.

[0039] In one embodiment of the first aspect, the fastening device further includes a third direction, which is perpendicular to both the first direction and the second direction;

[0040] Two limiting parts and two stopping parts are provided, and the two limiting parts are arranged on opposite sides of the slide along the third direction;

[0041] Two stops are provided, and the two stops are arranged on opposite sides of the slide along the third direction;

[0042] The number of hook parts matches the number of limiting parts.

[0043] In one embodiment of the first aspect, the slide is constrained by two guide platforms, and the slide and the base body are on the same plane.

[0044] In one embodiment of the first aspect, the slide is defined by a side of the base body extending toward the rotating assembly in a direction toward the rotating assembly.

[0045] In one embodiment of the first aspect, the slide includes a first segment and a second segment, which are sequentially connected along the first direction.

[0046] In one embodiment of the first aspect, notches are formed at both ends of the second segment along the second direction.

[0047] In one embodiment of the first aspect, the plurality of slots form a rack, the rack is disposed along the second direction, and a portion of the rack along the first direction is located on the first segment, and another portion of the rack along the first direction is located on the second segment.

[0048] In one embodiment of the first aspect, the fastening device further includes a third direction (y), which is perpendicular to both the first direction and the second direction. The rack of the first segment is lower than the rack of the second segment in the third direction.

[0049] In one embodiment of the first aspect, the tooth profile of the rack can be configured as spur teeth, helical teeth, double helical teeth, or cylindrical teeth; the tooth profile of the gear in the rotating assembly corresponds to the tooth profile of the rack.

[0050] In one embodiment of the first aspect, the slide includes a first segment having a notch formed at one end along the second direction.

[0051] In one embodiment of the first aspect, a marking portion is provided in the first segment body for marking the adjustment direction of the rotating component; the marking portion is located at the bottom of the first segment body near the notch.

[0052] In one embodiment of the first aspect, the plurality of slots form a rack, and two racks are provided, the two racks being arranged opposite each other along the third direction.

[0053] In one embodiment of the first aspect, along the first direction, the projected area of ​​the slide rail on the base body is smaller than the area of ​​the side of the base body facing the rotating assembly.

[0054] In one embodiment of the first aspect, the gears are provided in multiples, the multiple gears forming a gear set, wherein one of the gears engages with the slot.

[0055] In one embodiment of the first aspect, along the second direction, both opposite groove walls in the slide are arc-shaped groove walls.

[0056] In one embodiment of the first aspect, the side of the base body facing away from the rotating assembly is a plane, the plane being used to adhere to the article, or the plane being used to adhere to the strip.

[0057] In one embodiment of the first aspect, the base body is provided with a connecting hole, and the strip can be inserted through the connecting hole to fix the strip to the base body.

[0058] In one embodiment of the first aspect, the base body is provided with a sewing groove for sewing the base body to the item to be fastened. The sewing groove is formed within the slide rail and does not contact the locking slot.

[0059] In one embodiment of the first aspect, the base body may be connected to the item to be fastened by any one or more of the following methods: bonding, pressing, sewing, screwing, integral molding, etc.

[0060] In one embodiment of the first aspect, a first fixing member and a second fixing member are provided between the rotating assembly and the base assembly for fixing the strip-shaped member. When the rotating assembly is mounted on the base assembly, the first fixing member and the second fixing member are overlapped and pressed between the rotating assembly and the base assembly; the strip-shaped member is pressed between the first fixing member and the second fixing member.

[0061] In one embodiment of the first aspect, a first fixing member is provided between the rotating assembly and the base assembly for fixing the strip. When the rotating assembly is mounted on the base assembly, the strip is connected between the first fixing member and the rotating assembly.

[0062] Alternatively, when the rotating assembly is mounted on the base assembly, the first fixing member is connected between the rotating assembly and the base assembly, and the strip is connected to the first fixing member.

[0063] In one embodiment of the first aspect, the fastening device includes a belt assembly, and the base assembly is mounted on the belt via the belt assembly.

[0064] The rotating component is provided with a first mating part, and the belt component is provided with a second mating part, the second mating part being detachably mounted on the first mating part;

[0065] The second mating part includes a strap, one end of which is connected to the strap, and the other end of which is connected to an article using the strap or at least partially passes through the article using the strap and is connected to the base assembly.

[0066] In one embodiment of the first aspect, the first mating part is provided with a first boss, the belt assembly includes a connecting plate, one end of the connecting plate is provided with a first groove, and the first boss can be engaged in the first groove.

[0067] The strap is located on the end of the connecting plate away from the first groove.

[0068] In one embodiment of the first aspect, the fastening device includes a belt assembly, and the base assembly is mounted on the belt via the belt assembly.

[0069] The base assembly is provided with a first mating part, and the belt assembly is provided with a second mating part, the second mating part being detachably mounted on the first mating part.

[0070] The second mating part includes a strap, one end of which is connected to the strap, and the other end of which is connected to an article using the strap or at least partially passes through the article using the strap and is connected to the rotating assembly.

[0071] In one embodiment of the first aspect, the first mating portion includes a second boss, which is inclined in the second direction toward a direction away from the second mating portion;

[0072] The belt assembly includes a connecting plate, one end of which has a second groove, which corresponds to the second protrusion so that the second protrusion can be engaged in the second groove; the strap is disposed on the edge of the connecting plate away from the second groove.

[0073] In one embodiment of the first aspect, two second bosses are provided, and the two second bosses are disposed on opposite sides of the first mating portion along the third direction; a first magnet is disposed between the two second bosses.

[0074] Two second grooves are provided, and the two second grooves are arranged on opposite sides of the connecting plate along the third direction; a second magnet is provided between the two second grooves, and the first magnet can be magnetically connected to the second magnet.

[0075] In one embodiment of the first aspect, the first mating portion is disposed on the side of the base assembly away from the rotating assembly, and the first mating portion has an insertion groove. The belt assembly includes a connector, and when the connector is inserted into the insertion groove, the connector and the insertion groove can be fixed relative to each other.

[0076] In one embodiment of the first aspect, a limiting groove is formed in the insertion slot at a position away from the opening, the insertion connector includes an elastic rod, and a locking block is provided at the end of the elastic rod; when the insertion connector is inserted into the insertion slot, the locking block is locked into the limiting groove.

[0077] In one embodiment of the first aspect, the first mating portion is disposed on the base assembly on a side away from the rotating assembly, the first mating portion including a third groove, the extension direction of the third groove being perpendicular to the adjustment direction of the rotating assembly, and the depth of the third groove gradually increasing along the extension direction.

[0078] The belt assembly includes a connecting plate, on which a third protrusion is provided. The third protrusion is correspondingly provided with the third groove so that the third protrusion can be inserted into the third groove.

[0079] In one embodiment of the first aspect, two third grooves are arranged side by side in the first mating part along the second direction, a magnet groove is provided between the two third grooves, a third magnet is provided in the magnet groove, and the extension direction of the magnet groove is the same as the extension direction of the third groove.

[0080] The connecting plate is provided with two third protrusions, and a magnet frame is provided between the two third protrusions. A fourth magnet is provided in the magnet frame. When the third protrusion is engaged in the third groove, the magnet frame is engaged in the magnet groove, and the third magnet is attracted to the fourth magnet.

[0081] In one embodiment of the first aspect, a blocking member is provided on the magnet groove, the blocking member being able to partially block the third groove in the third direction; an inclined groove is formed on the connecting plate near the magnet frame. When the third boss is inserted into the third groove, the blocking member is inserted into the inclined groove.

[0082] In one embodiment of the first aspect, the rotating member further includes:

[0083] Rotating lid;

[0084] The transmission component has the gear on one side facing the base assembly, and the end of the transmission component away from the gear has a plurality of first tooth grooves.

[0085] The main body is disposed on the sliding seat. The main body has a mounting cavity for mounting the transmission component, and the main body has a first opening and a second opening that penetrate through it along the first direction. The first opening and the second opening are respectively connected to the mounting cavity.

[0086] A check valve, comprising a first snap-fit ​​portion and a second snap-fit ​​portion, wherein the check valve is disposed on one of the rotating cover and the main body, and the other is provided with a plurality of second toothed grooves that cooperate with the second snap-fit ​​portion, and the first snap-fit ​​portion engages with the plurality of first toothed grooves.

[0087] Under the action of external force, when the rotating cover rotates along the first preset rotation direction, the first locking part engages with the first tooth groove to drive the transmission member to rotate, and the second locking part disengages from the second tooth groove; when the rotating cover rotates along the second preset rotation direction, the first locking part disengages from the first tooth groove, the second locking part engages with the second tooth groove, and the transmission member rotates freely around its rotation axis.

[0088] In one embodiment of the first aspect, the second latching portion is disposed near the rotating cover relative to the first latching portion, and both the first latching portion and the second latching portion are pawls.

[0089] In one embodiment of the first aspect, the check valve is disposed on the rotating cover, and a groove is formed on the main body facing the rotating cover, and the plurality of second toothed grooves are arranged circumferentially along the inner wall of the groove.

[0090] In one embodiment of the first aspect, the transmission member has a stepped portion formed on the side facing the rotating cover, and an annular groove is formed on the side of the stepped portion near the rotating cover. A plurality of first toothed grooves are arranged along the inner wall of the annular groove, and the shoulder of the stepped portion abuts against the cavity wall of the mounting cavity near the rotating cover.

[0091] In one embodiment of the first aspect, the tooth opening orientation of the first tooth groove is different from that of the second tooth groove.

[0092] In one embodiment of the first aspect, the anti-return element further includes a fixing part, a first elastic arm and a second elastic arm, the fixing part being connected to the rotating cover, the first elastic arm and the second elastic arm being spaced apart circumferentially along the fixing part and offset along the first direction, the first snap-fit ​​part being disposed on the first elastic arm, and the second snap-fit ​​part being disposed on the second elastic arm.

[0093] In one embodiment of the first aspect, the rotating cover is provided with an elastic locking post, and the fixing part has a through hole extending through it along the first direction. The elastic locking post passes through the through hole and is locked onto the fixing part.

[0094] In one embodiment of the first aspect, the rotating cover is further provided with a plurality of first limiting blocks and a plurality of second limiting blocks, the plurality of first limiting blocks being arranged circumferentially along the fixing part and abutting against the fixing part, the fixing part being located between the elastic locking post and the first limiting blocks;

[0095] The first elastic arm is provided with a blocking part, which can abut against the second limiting block, and the second limiting block is located between the blocking part and the second elastic arm.

[0096] In one embodiment of the first aspect, the transmission member has a stepped hole extending through it along the first direction.

[0097] In one embodiment of the first aspect, the gear is at least partially located outside the second opening along the first direction.

[0098] In one embodiment of the first aspect, the rotating member further includes:

[0099] The transmission component has the gear on the side facing the base assembly, and the end of the transmission component away from the gear has an annular tooth groove.

[0100] The main body is disposed on the sliding seat. The main body has a mounting cavity for mounting the transmission component, and the main body has a first opening and a second opening that penetrate through it along the first direction. The first opening and the second opening are respectively connected to the mounting cavity.

[0101] The rotating cover has a linkage part on the side facing the main body;

[0102] A guide member, wherein the guide member is provided with annular teeth on the side facing the transmission member that mesh with the annular tooth groove, and the guide member is connected to the rotating cover;

[0103] A check valve is provided on the main body, and the check valve is provided with an elastic arm, and the elastic arm is provided with a check valve part that cooperates with the linkage part;

[0104] An elastic element abuts between the rotating cover and the sliding seat;

[0105] When the rotating cover is pressed under external force, the check valve engages with the linkage, and the rotating cover can only rotate in the first preset rotation direction. The annular tooth engages with the annular tooth groove to drive the transmission component to rotate. When the rotating cover is pressed again, the check valve engages with the linkage, the annular tooth disengages from the annular tooth groove, and the transmission component can rotate freely around its rotation axis.

[0106] In one embodiment of the first aspect, the rotating member further includes:

[0107] The transmission component has the gear on the side facing the base assembly, and the end of the transmission component away from the gear has an annular tooth groove.

[0108] The main body is disposed on the sliding seat. The main body has a mounting cavity for mounting the transmission component, and the main body has a first opening and a second opening that penetrate through it along the first direction. The first opening and the second opening are respectively connected to the mounting cavity.

[0109] The rotating cover has a linkage part and a cylindrical part with annular teeth on one side facing the main body, the annular teeth being able to engage with the annular tooth groove;

[0110] A check valve is provided on the main body, and the check valve is provided with an elastic arm, and the elastic arm is provided with a check valve part that cooperates with the linkage part;

[0111] When the rotating cover is pressed under external force, the check valve engages with the linkage, and the rotating cover can only rotate in the first preset rotation direction. The annular tooth engages with the annular tooth groove to drive the transmission component to rotate. When the rotating cover is pulled up, the annular tooth disengages from the annular tooth groove, and the transmission component can rotate freely around its rotation axis.

[0112] In one embodiment of the first aspect, the shape of the first magnetic element is one of a circle, rectangle, rhombus, ellipse, triangle, pentagon, hexagon, or irregular shape; the shape of the second magnetic element is one of a circle, rectangle, rhombus, ellipse, triangle, pentagon, hexagon, or irregular shape.

[0113] Secondly, this application also provides an article with a fastening device, comprising:

[0114] The object itself;

[0115] A strip-shaped component, which is connected to the article body;

[0116] And the fastening device described in any one of the embodiments of the first aspect.

[0117] The article with a fastening device provided in the embodiments of this application has the fastening device described in any one of the embodiments of the first aspect. Therefore, the article with the fastening device has all the beneficial effects of the fastening device, which will not be described in detail here.

[0118] In one embodiment of the second aspect, one end of the strip is connected to the article body, the other end of the strip is connected to the sliding seat, and the article body is connected to the base body.

[0119] In one embodiment of the second aspect, the strip includes:

[0120] A first belt body, one end of which is connected to the article body, and the other end of which is connected to the sliding seat;

[0121] The second belt has one end connected to the article body and the other end connected to the base body.

[0122] In one embodiment of the second aspect, the items include shoes, clothing, bags, helmets, belts, bras, hats, gloves, baby products, medical protective gear, and pet supplies.

[0123] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0124] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0125] Figure 1 shows a schematic diagram of the fastening device provided in one embodiment of this application from a perspective.

[0126] Figure 2 shows a schematic diagram of the structure of the fastening device base body according to an embodiment of this application from one perspective.

[0127] Figure 3 shows a schematic diagram of the fastening device base body from another perspective according to an embodiment of this application;

[0128] Figure 4 shows a schematic diagram of the fastening device base body from another perspective according to an embodiment of this application;

[0129] Figure 5 shows a schematic diagram of the fastening device provided in one embodiment of this application from a perspective.

[0130] Figure 6 shows a three-dimensional structural diagram of a fastening device provided in an embodiment of this application from one perspective.

[0131] Figure 7 shows a schematic diagram of the fastening device provided in one embodiment of this application from another perspective.

[0132] Figure 8 shows a schematic diagram of the fastening device provided in another embodiment of this application from one perspective.

[0133] Figure 9 shows a schematic diagram of the fastening device provided in yet another embodiment of this application from a perspective.

[0134] Figure 10 shows a three-dimensional structural schematic diagram of the structure shown in Figure 5;

[0135] Figure 11 shows an exploded structural diagram of a fastening device provided in an embodiment of this application;

[0136] Figure 11a shows an exploded structural diagram of a fastening device provided in another embodiment of this application;

[0137] Figure 11b shows a three-dimensional structural schematic diagram of the rotating cover shown in Figure 11a;

[0138] Figure 11c shows an exploded structural diagram of a fastening device provided in yet another embodiment of this application;

[0139] Figure 11d shows a three-dimensional structural schematic diagram of the rotating cover shown in Figure 11c;

[0140] Figure 12 shows a perspective view of a base assembly provided in one embodiment of this application.

[0141] Figure 13 shows a schematic diagram of the base assembly provided in one embodiment of this application from a perspective.

[0142] Figure 14 shows another perspective structural schematic diagram of the base assembly provided in one embodiment of this application;

[0143] Figure 15 shows another perspective structural schematic diagram of the base assembly provided in one embodiment of this application;

[0144] Figure 16 shows a schematic cross-sectional view of the structure along direction AA in Figure 11;

[0145] Figure 16a shows a schematic diagram of the base assembly provided in another embodiment of this application from one perspective.

[0146] Figure 16b shows a schematic diagram of the base assembly provided in yet another embodiment of this application from one perspective.

[0147] Figure 17 shows a structural schematic diagram of a base assembly provided in another embodiment of this application from one perspective;

[0148] Figure 18 shows a structural schematic diagram of a base assembly provided in another embodiment of this application from one perspective;

[0149] Figure 19 shows a perspective view of the three-dimensional structure of a rotating component provided in an embodiment of this application;

[0150] Figure 20 shows a schematic diagram of the rotating component provided in one embodiment of this application from a perspective.

[0151] Figure 21 shows a schematic cross-sectional view of the structure along the BB direction in Figure 14;

[0152] Figure 22 shows a three-dimensional structural diagram of the rotating component shown in Figure 13 from one perspective;

[0153] Figure 23 shows a schematic diagram of the rotating component shown in Figure 16 from one perspective.

[0154] Figure 24 shows a schematic cross-sectional view of the structure along the CC direction in Figure 17;

[0155] Figure 25 shows a perspective view of the rotating cover provided in one embodiment of this application;

[0156] Figure 26 shows a schematic diagram of the assembly structure of the rotating cover and the check valve according to an embodiment of this application;

[0157] Figure 27 shows a perspective view of the structure of a check valve provided in an embodiment of this application;

[0158] Figure 28 shows a schematic diagram of the assembly structure of the main body, transmission component and check valve provided in one embodiment of this application;

[0159] Figure 29 shows a schematic diagram of the assembly structure of the main body and the transmission component provided in one embodiment of this application;

[0160] Figure 30 shows a perspective view of the three-dimensional structure of a sliding seat provided in an embodiment of this application;

[0161] Figure 30a shows a perspective view of the three-dimensional structure of the sliding seat provided in another embodiment of this application;

[0162] Figure 31 shows a perspective view of the transmission component provided in one embodiment of this application.

[0163] Figure 32 shows a schematic diagram of the transmission component shown in Figure 27 from one perspective;

[0164] Figure 33 shows a schematic cross-sectional view of the structure along the DD direction in Figure 28;

[0165] Figure 34 shows a perspective view of the three-dimensional structure of a main body provided in an embodiment of this application;

[0166] Figure 35 shows a schematic diagram of the main body shown in Figure 30 from one perspective;

[0167] Figure 36 shows a schematic cross-sectional view of the structure along the EE direction in Figure 31;

[0168] Figure 37 shows a schematic diagram of a fastening device with a first fastener and a second fastener provided in an embodiment of this application;

[0169] Figure 38 shows a schematic diagram of a fastening device with a first fastener and a second fastener provided in another embodiment of this application;

[0170] Figure 39 shows a schematic diagram of the fastening device having a first fastener and a second fastener according to another embodiment of this application;

[0171] Figure 40 shows a schematic diagram of a fastening device with a first fastener provided in one embodiment of this application;

[0172] Figure 41 shows a schematic diagram of the structure of a fastening device with a first fastener according to another embodiment of this application;

[0173] Figure 42 shows a schematic diagram of the structure of a fastening device with a belt assembly according to an embodiment of the present application;

[0174] Figure 43 shows a schematic diagram of the structure of a fastening device with a belt assembly according to another embodiment of this application;

[0175] Figure 44 shows a schematic diagram of the structure of a fastening device with a belt assembly according to another embodiment of this application;

[0176] Figure 45 shows a structural schematic diagram from one perspective of a fastening device with a belt assembly provided in another embodiment of this application;

[0177] Figure 46 shows a structural schematic diagram from another perspective of a fastening device with a belt assembly provided in another embodiment of this application;

[0178] Figure 47 shows a structural schematic diagram from one perspective of different gear engagements of a fastening device provided in an embodiment of this application;

[0179] Figures 48 to 57 show a schematic diagram of the fastening device provided in one embodiment of this application applied to a shoe from one perspective.

[0180] Figures 58 and 59 show a schematic diagram of the fastening device provided in one embodiment of the present application applied to a bra.

[0181] Figures 60 to 66 show a schematic diagram of the structure of a fastening device provided in an embodiment of this application applied to a bag;

[0182] Figure 67 shows a schematic diagram of the fastening device provided in one embodiment of this application applied to clothing from one perspective.

[0183] Figure 68 shows a schematic diagram of the fastening device provided in one embodiment of this application applied to a hat from one perspective.

[0184] Figure 69 shows a schematic diagram of the fastening device provided in one embodiment of this application applied to a glove from one perspective.

[0185] Figure 70 shows a schematic diagram of the fastening device provided in one embodiment of this application applied to a helmet from one perspective.

[0186] Figure 71 shows a schematic diagram from one perspective of the fastening device provided in another embodiment of this application applied to clothing.

[0187] icon:

[0188] 10-Securing device; 100-Rotating assembly; 101-Rotating component; 102-Sliding seat; 1021-Receiving cavity; 1022-Opening; 1023-Connecting part; 110-Transmission component; 111-Gear; 112-First tooth groove; 113-Stepped part; 1131-Annular groove; 114-Stepped hole; 115-Annular tooth groove; 120-Rotating cover; 121-Elastic locking post; 122-First limiting block; 123-Second limiting block; 124-Linkage part; 125-Cylindrical component; 130-Main body; 131-Mounting cavity; 1311-First opening; 1312-Second opening; 132-Second toothed groove; 133-Groove; 140-Check valve; 141-Fixing part; 1411-Through hole; 142-First elastic arm; 1421-First locking part; 1422-Blocking part; 143-Second elastic arm; 1431-Second locking part; 144-Elastic arm; 1441-Check valve; 150-First magnetic element; 160-Guide element; 170-Annular tooth; 180-Elastic element; 200-Base assembly; 210-Base body; 2101- 211-Connecting hole; 2111-Mounting groove; 2111-First hole section; 2112-Second hole section; 2113-Through hole; 212-Protrusion; 213-Stop; 2131-Allowing space; 214-Guide platform; 215-Threaded hole; 220-Slide rail; 2201-Slot; 221-First section body; 2211-Identification part; 222-Second section body; 2221-Notch; 223-Limiting part; 2231-First limiting section; 2232-Second limiting section; 2233-Curved chamfer; 224-Curved groove wall; 230- Second magnetic component; 240-Sewing groove; 251-First fixing component; 252-Second fixing component; 300-First mating part; 310-First boss; 320-Second boss; 330-Insertion groove; 331-Limiting groove; 340-Third groove; 341-Magnetic groove; 342-Blocking component; 400-Belt assembly; 410-Connecting plate; 411-First groove; 412-Second groove; 414-Third boss; 415-Slanted groove; 420-Belt fastener; 430-Insertion connector; 431-Elastic rod; 432-Snap-fit ​​block;

[0189] 20 - Item; 21 - Item body; 22 - Strip; 22a - First strip body; 22b - Second strip body;

[0190] z - First direction; x - Second direction; y - Third direction. Detailed Implementation

[0191] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0192] In the description of this application, it should be noted that the terms "inner" and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this application and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0193] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0194] As shown in Figures 1 to 7, in order to solve the above-mentioned technical problems, the embodiments of this application provide a fastening device 10, which is used to adjust the tightness of an article 20 using a strap 22. As shown in Figures 37, 47, 48, 68, 69, and 71, the article 20 can be shoes, clothes, bags, helmets, belts, bras, hats, gloves, watches, etc., especially for outdoor sports products, wearable devices, and other open-ended articles 20 that need to be fastened.

[0195] Referring to Figures 4 and 10, the fastening device 10 has a first direction z and a second direction x that are perpendicular to each other. The fastening device 10 includes a rotating assembly 100 and a base assembly 200. For ease of description and explanation, the first direction z is the height direction of the fastening device 10, and the second direction x is the length direction of the fastening device 10.

[0196] Referring to Figures 19 and 30, the rotating assembly 100 includes a rotating member 101 and a sliding seat 102. The sliding seat 102 is used to connect to one end of the strip 22. The sliding seat 102 is provided with a receiving cavity 1021. Along the first direction z, openings 1022 that connect to the receiving cavity 1021 are respectively opened on opposite sides of the sliding seat 102. A portion of the rotating member 101 is disposed in the receiving cavity 1021. At least one gear 111 is provided on the rotating member 101. The gear 111 is located on the side of the rotating member 101 near the base assembly 200.

[0197] Referring to Figures 1 to 8, the base assembly 200 includes a base body 210, which is slidably connected to the sliding seat 102 along the second direction x. A guide platform 214 is provided on the side of the base body 210 facing the sliding seat 102. Two guide platforms 214 are symmetrically arranged on the base body 210, and a slide rail 220 is formed between the two guide platforms 214. Along the second direction x, the groove wall of the slide rail 220 is provided with multiple slots 2201. The gear 111 can mesh with the slots 2201. Under the action of external force, the rotating component 101 is driven to rotate, causing the gear 111 to move along the multiple slots 2201, thereby enabling the sliding seat 102 to move relative to the base body 210 along the second direction x, thus driving the belt component 22 to move. A strapping component 420 is provided on the rotating component 100 or the base assembly 200 for connecting the belt component 22.

[0198] The fastening device 10 provided in the embodiments of this application is applied to adjust the tightness of an article 20 having a strip 22, that is, to adjust the length of the strip 22 on the article 20. When it is necessary to adjust the length of the strip 22 on the article 20, the drive rotating member 101 rotates along a first preset rotation direction to drive the gear 111 to move along multiple slots 2201, so as to realize the movement of the sliding seat 102 relative to the base body 210, thereby driving the strip 22 to move, and thus realizing the length adjustment of the strip 22, that is, the tightness adjustment, which facilitates the tightness adjustment of the article 20 and improves the convenience of the product.

[0199] For example, the first preset rotation direction can be clockwise or counterclockwise. For the sake of convenience in describing the following embodiments, the first preset rotation direction is taken as clockwise.

[0200] As shown in FIG11, in one embodiment, the rotating assembly 100 further includes a first magnetic element 150, which is disposed on the rotating assembly 101.

[0201] The base assembly 200 also includes a second magnetic element 230, which is disposed on the base body 210 and is magnetically connected to the first magnetic element 150, so as to detachably connect the rotating assembly 100 and the base assembly 200 and position the rotating assembly 100 and the base assembly 200 at their initial positions.

[0202] It is worth mentioning that, in this embodiment, as shown in FIG1, the strap 420 is configured as a D-ring buckle, and the D-ring buckle is rotatably mounted on the rotating assembly 100 for connecting the strap 22. In actual use, the D-ring buckle can also be rotatably mounted on the base assembly 200, which can also serve to connect the strap 22, making this embodiment applicable to different occasions.

[0203] Depending on the actual situation, the D-ring buckle can be selected in different sizes and widths to connect straps 22 of different specifications. Alternatively, the specific structure of the strap 420 is not limited to the D-ring buckle; it can be set as any other fastener capable of connecting the strap 22.

[0204] In this embodiment, the fastening device 10 has an open structure. The rotating assembly 100 and the base assembly 200 are detachably connected via the magnetic connection of the first magnetic element 150 and the second magnetic element 230. This allows the strap 22 on the article 20 to be either open or closed. When closed, the tension of the strap 22 can be adjusted by rotating the rotating element 101. Furthermore, in this embodiment, when the rotating assembly 100 and the base assembly 200 need to be closed, the magnetic connection of the first magnetic element 150 and the second magnetic element 230 also enables quick positioning between them, facilitating user operation.

[0205] It should be noted that in other embodiments, the fastening device 10 may also be a closed structure. For example, the rotating assembly 100 cooperates with the base assembly 200 of FIG. 12b to form a closed fastening device 10. After the sliding seat 102 of the rotating assembly 100 is assembled to the limiting part 223, the end of the limiting part 223 is sealed with screws on the right side of FIG. 12b. As shown in FIG. 12, in one embodiment, the base body 210 is provided with a mounting groove 211 for mounting the second magnetic component 230. The mounting groove 211 is located in the slide rail 220. In this embodiment, the mounting groove 211 is provided on the base body 210 to facilitate the installation of the second magnetic component 230. The second magnetic component 230 can be connected to the groove wall of the mounting groove 211 with an interference fit. Of course, the second magnetic component 230 can also be bonded to the mounting groove 211 by an adhesive layer.

[0206] As shown in Figures 2 to 4, in one embodiment, the base body 210 is provided with a mounting groove 211 for mounting the second magnetic component 230. The mounting groove 211 is located on the side of the base body 210 away from the slide rail 220. That is, the second magnetic component 230 is disposed on the back side of the base body 210, and the second magnetic component 230 is completely out of contact with the rotating assembly 100. In this way, during use, the second magnetic component 230 can maintain a magnetic connection with the first magnetic component 150 in the rotating assembly 100, so that the rotating assembly 100 and the base body 210 have magnetic attraction at the initial position of engagement, improving the reliability of the engagement. When the rotating assembly 100 slides on the base body 210, the second magnetic component 230 will not affect the rotating assembly 100.

[0207] Furthermore, by placing the second magnetic component 230 on the back of the base body 210, the magnetic component is completely invisible from the outside after the embodiment is installed on the item 20 to be secured, thus improving the overall aesthetics and texture of the embodiment.

[0208] Please refer to Figures 2 through 4. The mounting groove 211 is formed by the bottom surface of the base body 210, which is recessed into the slide groove 220 from the side away from the rotating component 101 towards the rotating component 101. This simplifies the manufacturing process of the mounting groove 211 and shortens the distance between the second magnetic component 230 and the first magnetic component 150 in the rotating assembly 100 after the second magnetic component 230 is installed in the mounting groove 211. This results in a stronger magnetic force between the first magnetic component 150 and the second magnetic component 230, and a more stable and reliable magnetic fit.

[0209] Referring to Figure 12, in the embodiment of the mounting groove 211 described above, the opening of the mounting groove 211 is, for example, positioned facing the rotating member 101. In this embodiment, the opening of the mounting groove 211 is positioned facing the rotating member 101, which strengthens the magnetic strength when the second magnetic member 230, which is fixed in the mounting groove 211, engages with the first magnetic member 150 on the rotating member 101, thereby improving the magnetic connection strength between the base body 210 and the sliding seat 102.

[0210] Referring again to Figure 12, in the embodiment of the mounting groove 211 described above, a protrusion 212 is provided on the base body 210. The protrusion 212 is located within the slide rail 220, and the mounting groove 211 is formed on the protrusion 212. In this embodiment, the mounting groove 211 is formed on the protrusion 212, so that after the second magnetic component 230 is installed in the mounting groove 211, it is closer to the first magnetic component 150 on the rotating component 101, which facilitates the magnetic connection and positioning of the first magnetic component 150 and the second magnetic component 230.

[0211] Referring to Figure 16, in the embodiment of the protrusion 212 described above, for example, the height of the protrusion 212 along the first direction z is less than the depth of the slide 220. This is to avoid the situation where the protrusion 212 is too high, causing interference between the base body 210 and the slide seat 102 after they are connected by the magnetic component, resulting in difficulty in relative sliding.

[0212] In another embodiment, which differs from the above-described scheme with protrusion 212, for example, the mounting groove 211 is formed by the bottom of the base body 210 recessed into the slide 220.

[0213] As shown in Figures 15 and 17, in another embodiment, the mounting groove 211 is a stepped hole groove, which includes a first hole segment 2111 and a second hole segment 2112. The diameter of the first hole segment 2111 is larger than the diameter of the second hole segment 2112, and the second magnetic element 230 matches the shape of the stepped hole groove. The second magnetic element 230 has a stepped structure to facilitate installation within the stepped hole groove.

[0214] As shown in Figures 14 and 16, in the above-described embodiment of the stepped groove, a through hole 2113 is provided at the bottom of the groove along the first direction z. In this embodiment, the through hole 2113 facilitates the assembly of the second magnetic component 230 into the stepped groove. The through hole 2113 allows the second magnetic component 230 to be easily inserted into the stepped groove from the opening. Furthermore, when the second magnetic component 230 needs to be replaced, a tool can be inserted through the through hole 2113 to push it out.

[0215] As shown in Figures 17 and 18, in one embodiment, a recess is provided on the base body 210, located on the side of the base body 210 away from the slide rail 220. A mounting groove 211 is formed within the recess, and the second magnetic component 230 is installed within the mounting groove 211. Installing the second magnetic component 230 within the recess allows the second magnetic component 230 to be closer to the first magnetic component 150 on the adjustment assembly without the first magnetic component 150 and the second magnetic component 230 contacting each other. This enhances the magnetic attraction between the two and prevents the first magnetic component 150 from interfering with the second magnetic component 230. This ensures a more secure and reliable connection between the adjustment assembly and the base assembly 200. The recess provides a fixed mounting position for the second magnetic component 230, facilitating precise alignment and allowing the first magnetic component 150 and the second magnetic component 230 to accurately align, reducing instability in adsorption caused by positional deviations.

[0216] The recessed design conceals the second magnetic component 230, preventing it from being directly exposed and making the surface of the entire base body 210 appear smoother and simpler, thus enhancing the overall aesthetics of the product. Embedding the magnetic component within the recess also reduces the potential damage or displacement risk caused by external factors such as collisions and friction. Furthermore, it reduces the attraction of metallic substances in the environment to the magnetic component, preventing unnecessary adsorption and making this embodiment more reliable.

[0217] Furthermore, by providing the mounting slot 211, a precisely matched mounting position can be provided for the second magnetic component 230, ensuring that it is firmly fixed in the predetermined position and avoiding displacement problems caused by external impact or long-term use. The design of the mounting slot 211 helps to disperse the impact of vibration on the magnetic component, especially in applications with frequent movement or vibration, such as outdoor sports bags, gloves, hats, or rain jackets, so that the magnetic component can still maintain the reliability of the magnetic connection.

[0218] Furthermore, since the magnetic component is firmly fixed in the mounting slot 211, the weakening of the magnetic field caused by slight offset is reduced, further enhancing the effect of the magnetic connection.

[0219] Please refer to Figures 17 and 18. For example, the opening of the mounting groove 211 is oriented away from the rotating component 101. In other words, the opening of the mounting groove 211 faces downwards. This allows the second magnetic component 230 to be installed into the mounting groove 211 after the main body 130 has been installed, during the assembly and splicing of the base assembly 200. During the installation of other parts of the base assembly 200, the installation of the second magnetic component 230 does not need to be considered, and the installation of other components will not be affected by the pre-installation of the second magnetic component 230, thus simplifying the installation process.

[0220] Please refer to Figures 17 and 18. For example, a protrusion 212 is provided on the recess, and a mounting groove 211 is formed in the protrusion 212. Since the base assembly 200 in this embodiment is relatively thin overall, and a recess is provided on the base assembly 200, the depth of the mounting groove 211 for mounting the second magnetic component 230 is limited. If the depth is too large, it may penetrate the base assembly 200, causing component interference or other effects. If the depth is too small, the second magnetic component 230 cannot be firmly fixed, or only a thin magnet can be selected for the second magnetic component 230, which may lead to unreliable magnetic attraction. Protrusion 212 on the recess effectively ensures that the mounting groove 211 has a certain depth, making the installation of the second magnetic component 230 more reliable and allowing for the selection of a second magnetic component 230 of appropriate thickness to ensure reliable magnetic force between the first magnetic component 150 and the second magnetic component 230.

[0221] Please refer to Figures 17 and 18. For example, the height of the protrusion 212 along the first direction z is less than the depth of the recess. The fact that the height of the protrusion 212 is less than the depth of the recess ensures that the lower surface of the base assembly 200 remains flat and prevents the protrusion 212 from affecting the normal installation of the base assembly 200.

[0222] Please refer to Figures 17 and 18. For example, multiple mounting slots 211 are provided on the base body 210 along the second direction x. By providing multiple mounting slots 211, different positions can be selected to install the second magnetic component 230 according to actual needs. This means that users can adjust the position of the magnetic component according to specific usage scenarios or personal preferences to obtain the best adsorption effect and user experience. When the adjustment component moves within the slide 220, the magnetic components at different positions can ensure good magnetic connection throughout the entire adjustment range, avoiding weakening of the adsorption force due to position changes. This also prevents the rotating component 100 from detaching from the base component 200 during use, thus avoiding affecting the normal use of this embodiment.

[0223] Different application scenarios may have different requirements for magnetic connections, such as magnetic strength and adsorption position. The design of multiple mounting slots 211 allows the device to better adapt to various situations, meaning that this embodiment can be applied to different products, improving its versatility and market competitiveness.

[0224] As shown in Figures 12, 19, and 21, in one embodiment, a limiting part 223 is provided on the base body 210, and the limiting part 223 is disposed along the outer wall of the slide rail 220. A hook part 1023 is provided on the sliding seat 102. When the sliding seat 102 moves relative to the base body 210, the hook part 1023 can abut against the limiting part 223 and can move along the second direction x. The limiting part 223 is used to restrict the sliding seat 102 from moving along the first direction z. In this embodiment, the cooperation between the limiting part 223 and the hook part 1023 prevents the sliding seat 102 from wobbling in the first direction z when sliding relative to the base body 210. Simultaneously, the cooperation between the hook part 1023 and the limiting part 223 also acts as a guide for the slide rail, facilitating the sliding of the sliding seat 102 relative to the base body 210.

[0225] As shown in Figures 2 to 4 and Figure 13, in an embodiment of the fastening device 10 having a first magnetic element 150, a second magnetic element 230, and the aforementioned limiting portion 223, the limiting portion 223, exemplarily, includes a first limiting segment 2231 and a second limiting segment 2232. The first limiting segment 2231 is disposed along the second direction x, and the second limiting segment 2232 is disposed at the end of the first limiting segment 2231 away from the second magnetic element 230, and the second limiting segment 2232 is disposed at an angle to the first limiting segment 2231. In this embodiment, the second limiting segment 2232 plays a limiting role when the sliding seat 102 slides in the second direction x, preventing the sliding seat 102 from sliding out of the base body 210.

[0226] Of course, in embodiments where the first magnetic element 150 and the second magnetic element 230 are not provided, the above-mentioned second limiting segment 2232 and the first limiting segment 2231 can also be provided. In this case, the second limiting segment 2232 can be provided at both ends of the first limiting segment 2231 to prevent the sliding seat 102 from sliding out of the base body 210.

[0227] In the above embodiments, for example, the second limiting segment 2232 is arranged perpendicularly to the first limiting segment 2231. Of course, in other embodiments, the second limiting segment 2232 may also be at an angle of 100°, 115°, 120°, etc., to the first limiting segment 2231.

[0228] As shown in Figure 13, in one embodiment of the fastening device 10 having a first magnetic element 150 and a second magnetic element 230, the length of the first limiting segment 2231 along the second direction x is less than the length of the slide 220. This facilitates the disassembly of the sliding seat 102 from the base body 210 along the first direction z, thus achieving an open structure.

[0229] In one embodiment of the fastening device 10 having a first magnetic element 150, a second magnetic element 230, and a limiting portion 223, an arc-shaped chamfer 2233 is formed at the end of the first limiting segment 2231 away from the second limiting segment 2232. The arc-shaped chamfer 2233 facilitates the engagement of the hook portion 1023 of the sliding seat 102 with the limiting portion 223, that is, the hook portion 1023 slides into the bottom of the first limiting segment 2231 along the arc-shaped chamfer 2233 of the first limiting segment 2231.

[0230] As shown in Figures 2 to 4, the shape of the first limiting segment 2231 corresponds to that of the base body 210. The first limiting segment 2231 can be a straight line or an arc. Specifically, the first limiting segment 2231 can be a straight line to ensure stable and reliable movement of the connecting part 1023 when it slides within the first limiting segment 2231. However, in this embodiment, when the fastening device 10 is installed on different items 20, the base body 210 may need to be set with a certain degree of curvature according to actual needs. In this case, the first limiting segment 2231 can change with the shape of the base body 210, also being set with a certain degree of curvature, so that the first limiting segment 2231 always remains parallel to the base body 210, and the connecting part 1023 runs smoothly within the first limiting segment 2231.

[0231] As shown in Figures 12, 13 and 15, in one embodiment of the fastening device 10 having a first magnetic element 150, a second magnetic element 230 and a limiting part 223, a stop part 213 is also provided on the base body 210. The stop part 213 is provided at one end of the outer wall of the slide 220 along the second direction x, and the limiting part 223 is provided on the outer wall of the slide 220 along the second direction x. An avoidance space 2131 is defined between one end of the limiting part 223 and the stop part 213. The end of the limiting part 223 away from the stop part 213 extends along the second direction x to the end of the outer wall of the slide 220.

[0232] In this embodiment, the stop portion 213 facilitates the engagement of the rotating assembly 100 with the base assembly 200. That is, the sliding seat 102 can be magnetically connected and positioned with the base body 210 along the stop portion 213 and the clearance space 2131. Then, when it is necessary to adjust the tension of the strip 22, the rotating component 101 is rotated so that the gear 111 moves along the slot 2201, causing the sliding seat 102 to slide towards the end of the base body 210 away from the stop portion 213. At this time, the first magnetic component 150 and the second magnetic component 230 are separated. That is, the force of rotating the rotating component 101 and the force of gear 111 meshing with the slot 2201 are greater than the force generated by the first magnetic component 150 and the second magnetic component 230 along the second direction x.

[0233] In the embodiment of the stop portion 213 described above, for example, the stop portion 213 has a snap-fit ​​surface on the side facing the limiting portion 223, and the end of the hook portion 1023 near the sliding seat 102 and the strip 22 along the second direction x can engage with the snap-fit ​​surface. In this embodiment, when the sliding seat 102 and the base body 210 need to be fastened together, the hook portion 1023 moves downward along the snap-fit ​​surface to facilitate the fastening of the sliding seat 102 and the base body 210.

[0234] As shown in Figures 12 and 15, in one embodiment of the stop portion 213 and the limiting portion 223, the fastening device 10 further includes a third direction y, which is perpendicular to the first direction z and the second direction x, respectively, and the third direction y is the width direction of the fastening device 10.

[0235] For example, two limiting portions 223 and two stopping portions 213 are provided, with the two limiting portions 223 disposed on opposite sides of the slide rail 220 along a third direction y. Two stopping portions 213 are also provided, disposed on opposite sides of the slide rail 220 along a third direction y. The number of hook portions 1023 matches the number of limiting portions 223, and two hook portions 1023 are also provided.

[0236] As shown in Figures 2 to 4, in one embodiment, the slide 220 is formed by two guide platforms 214, and the slide 220 and the base body 210 are on the same plane. On the one hand, since the slide 220 and the base are on the same plane, during processing, it is only necessary to integrally form the guide platforms 214 and the base body 210, or process the guide platforms 214 at a designated position, to complete the processing of the slide 220, eliminating the need for separate processing of the slide 220 and reducing processing costs. On the other hand, the slide 220 does not need to be recessed, which also makes the cooperation between the slide 220 and the rotating component 100 more stable, preventing height differences from affecting sliding, and also giving the base body 210 a more refined overall appearance.

[0237] As shown in Figure 13, in any of the above embodiments, exemplarily, the slide 220 is defined by the base body 210 extending toward the rotating assembly 100. This structure, whereby the slide 220 forms a boss relative to the base body 210, facilitates the sliding connection between the sliding seat 102 and the outer wall of the slide 220, and also facilitates the engagement of the gear 111 of the rotating member 101 with the slot 2201 within the slide 220.

[0238] As shown in Figures 15 and 16, in the above embodiment, the slide 220 includes a first section 221 and a second section 222. The first section 221 and the second section 222 are sequentially connected along the first direction z. The first section 221 is slidably engaged with the sliding seat 102.

[0239] Referring again to Figures 15 and 16, in one embodiment of the slide 220 including a first section 221 and a second section 222, the second section 222 has notches 2221 formed at both ends along the second direction x. In this embodiment, the notches 2221 serve to prevent air from entering at both ends of the sliding seat 102.

[0240] Referring again to Figures 15 and 16, in one embodiment of the slide 220 including a first section 221 and a second section 222, for example, a plurality of slots 2201 form a rack, the rack is arranged along a second direction x, and a portion of the rack along a first direction z is located on the first section 221, and another portion of the rack along the first direction z is located on the second section 222.

[0241] As shown in Figures 2 to 4, the fastening device 10 further includes a third direction y, which is perpendicular to the first direction z and the second direction x. The rack of the first segment 221 is lower than the rack of the second segment 222 in the third direction y. The position of the first segment 221 is where the rotating component 100 is installed with the base body 210. The lower rack height at the first segment 221 makes it easier for the gear 111 to mesh with the rack when the rotating component 100 is installed on the base body 210, avoiding tooth breakage or difficulty in installing the rotating component 100.

[0242] For example, there are two racks, which are arranged on two opposite sides of the slide 220 along the third direction y.

[0243] Of course, in other embodiments, a rack may also be provided, which may be located on any side of the slide 220 in the third direction y.

[0244] In one embodiment where the slide 220 differs from the one described above, which includes a first section 221 and a second section 222, the fastening device 10 further includes a third direction y, which is perpendicular to the first direction z and the second direction x, respectively; the third direction y is the width direction of the fastening device 10.

[0245] As shown in Figures 9 and 10, multiple slots 2201 form a rack, and two racks are provided, which are arranged opposite each other along the third direction y. It can be understood that in other embodiments, as shown in Figures 3 and 4, only one rack can be provided, which can be located on either side of the slide 220 in the third direction y.

[0246] As shown in Figures 17, 18 and 47, in one embodiment, for example, the tooth profile of the rack can be set as straight teeth, helical teeth, double helical teeth or cylindrical teeth; the tooth profile of the gear 111 in the rotating assembly 100 is set to correspond to the tooth profile of the rack.

[0247] In detail, spur gears (111) and racks have the most mature, simplest, and lowest-cost manufacturing processes, making them suitable for mass production. During meshing, only normal force is applied, with no axial component force, resulting in minimal energy loss. It is easy to ensure tooth profile accuracy, guaranteeing precise adjustment. Suitable for everyday items that are cost-sensitive, require high adjustment precision, but do not demand high levels of noise and extremely smooth operation, such as ordinary backpacks and casual shoes.

[0248] Helical teeth engage and disengage gradually, resulting in a smooth and continuous meshing process that significantly reduces impact and vibration, making adjustments extremely smooth and quiet. Simultaneously, more teeth participate in the meshing, leading to higher overlap and more even load distribution, enabling the adjustment to withstand greater tightening forces. Due to the smooth meshing, the overall dynamic performance of the adjustment process is improved. This makes it suitable for high-end products with extremely high requirements for handling and quiet operation, such as high-end athletic shoes, precision instrument bags, and medical protective gear.

[0249] Double helical gears consist of two sets of helical teeth facing opposite directions, resembling a fishbone. The axial forces generated by the two sets of helical teeth are equal in magnitude and opposite in direction, canceling each other out. Therefore, no additional thrust bearing is needed, simplifying the structure. They also feature high overlap ratio, high load capacity, high stability, and low noise. Furthermore, the elimination of axial force handling allows for a more compact overall design. However, they also present the problem of highly complex manufacturing and high cost. They are suitable for special applications with extreme performance requirements and where cost is not a primary concern.

[0250] As shown in Figure 17, in one embodiment, exemplarily, the slide 220 includes a first segment 221, with a notch 2221 formed at one end of the first segment 221 along the second direction x. The rotating component 100 can be easily and conveniently installed onto the base component 200 from the notch 2221. After the rotating component 100 is installed onto the base component 200 from the notch 2221, during adjustment, after moving to the limit position, it will abut against the end of the slide 220 and cannot move further, thus informing the user that the rotating component 100 has been adjusted to the limit position. Alternatively, after the rotating component 100 is installed onto the base component 200, it can also be moved to the limit position of the slide 220 and adjusted towards the notch 2221. After adjusting to the limit position, the rotating component 100 will disengage from the notch 2221, which also provides direct adjustment feedback to the user.

[0251] As shown in Figure 17, in one embodiment, exemplarily, a marking portion 2211 is provided within the first segment 221 to indicate the adjustment direction of the rotating component 100; the marking portion 2211 is located at the bottom of the first segment 221 near the notch 2221. The marking portion 2211 provides clear directional guidance to the user, helping the user accurately understand how to operate the adjustment component to achieve the desired tightness adjustment. This reduces the possibility of misoperation and ensures that each adjustment is performed as expected. Furthermore, for users using this embodiment for the first time, the marking portion 2211 can greatly reduce the learning cost of understanding and using the device, making operation more intuitive and easier to learn.

[0252] In this embodiment, the marking part 2211 is set as an arrow pointing towards the notch 2221. It can be understood that the marking part 2211 can also be set as any other directional pattern or mark according to actual needs or different usage scenarios.

[0253] The marking unit 2211 also prevents users from performing reverse operations, which in some cases may damage the device or prevent the desired adjustment from being achieved. The marking unit 2211 helps users avoid this situation, ensuring that each adjustment is performed in the correct direction. By reducing incorrect operations, the lifespan of the device can be further extended, and wear and tear or other potential problems caused by improper use can be reduced.

[0254] As shown in Figure 15, in one embodiment where the slide 220 extends from the side of the base body 210 facing the rotating assembly 100 and is defined by this extension, the projected area of ​​the slide 220 on the base body 210 along the first direction z is smaller than the area of ​​the side of the base body 210 facing the rotating assembly 100. In this embodiment, this arrangement allows a portion of the bottom of the sliding seat 102 to abut against the surface of the base body 210 without the slide 220, preventing the bottom of the sliding seat 102 from contacting the article 20 when it moves, thus facilitating the movement of the sliding seat 102 relative to the base body 210.

[0255] In one embodiment, for example, multiple gears 111 are provided, forming a gear set (not shown in the figure), with one gear 111 engaging with a slot 2201. For example, there are two gears 111, with at least one gear 111 engaging with a slot 2201, or both gears 111 engaging with their corresponding slots 2201. Alternatively, there are three gears 111, with at least one gear 111 engaging with a slot 2201. Of course, in other embodiments, one, four, five, or more gears 111 may be provided. When there are multiple gears 111, they are meshed and connected, and the diameter of each gear 111 may be the same or different.

[0256] As shown in Figure 12, in one embodiment, for example, along the second direction x, the two opposite groove walls in the slide 220 are both arc-shaped groove walls 224, and the position of the sliding seat 102 corresponding to the arc-shaped groove wall 224 has an arc-shaped surface that matches it.

[0257] As shown in Figures 11 and 14, in one embodiment, the side of the base body 210 facing away from the rotating assembly 100 is a plane. This plane is used to bond with the article 20, or to bond with the strip 22, or to connect by riveting or hot pressing. Of course, this plane can also be directly bonded to the article 20, or connected by riveting or hot pressing.

[0258] As shown in Figure 16a, in another embodiment, the base body 210 is provided with a connecting hole 2101, through which the strip 22 can pass to fix it to the base body 210. This facilitates the connection between the base body 210 and the strip 22. Of course, the connecting hole 2101 can also be open to facilitate the assembly of the strip 22.

[0259] As shown in Figure 18, in one embodiment, for example, the base body 210 is provided with a sewing groove 240 for sewing the base body 210 to the item 20 to be fastened. The sewing groove 240 is formed within the slide rail 220 and does not contact the slot 2201. Traditional installation methods, such as drilling holes and sewing on the surface or edge of the base assembly 200, will leave obvious seams and needle holes, affecting the product's appearance. The sewing groove 240 is located inside the slide rail 220, and the stitching is completely hidden under the slide rail 220 structure. From the outside and top surface of the base assembly 200, no stitching marks are visible, and the entire device surface is smooth and complete, achieving a "seamless" or "invisible installation" effect. This allows the fastening device 10 to integrate with clothing, bags, etc., resulting in a simple, modern, and high-end appearance, meeting the product requirements for high aesthetics.

[0260] The seam groove 240 is formed on the slide rail 220, which serves as the main load-bearing structure, and the stitching is directly fixed to the strongest part. When the base assembly 200 is under stress, the tension can be evenly transmitted to the stitching through the base assembly 200, avoiding stress concentration at the edges. Compared to sewing on thin edges, this method of sewing in the thick area of ​​the slide rail 220 provides stronger tensile and tear resistance and a more secure installation.

[0261] The sewing groove 240 is used for mounting and fixing, while the slot 2201 is used for functional transmission. The two are completely isolated in space. This ensures that the stitching thread, thread ends, or minor deformations caused by sewing will not enter the area of ​​the slot 2201, thus eliminating the risk of the thread getting caught between the gear 111 and the rack. When the gear 111 of the rotating assembly 100 rolls within the slide 220, its path is completely clean and unobstructed, ensuring absolute smoothness and reliability of the adjustment operation.

[0262] In one embodiment, for example, the base body 210 can be connected to the item 20 to be fastened using one or more methods such as bonding, pressing, sewing, screwing, or integral molding. Depending on actual needs, some items 20 may require greater connection strength due to usage scenarios, installation locations, etc., such as sports shoes and belts. A single connection method may not meet the strength requirements. In this case, the base body 210 can use multiple connection methods in combination to improve the connection strength. For example, as shown in Figures 1 to 4, the base body 210 is provided with threaded holes 215. During connection, the base body 210 can first be bonded or pressed onto the item 20, and then fixed with screws to ensure sufficient connection strength between the base body 210 and the item 20.

[0263] As shown in Figures 37 to 39, in one embodiment, for example, a first fixing member 251 and a second fixing member 252 are provided between the rotating assembly 100 and the base assembly 200 for fixing the strip 22. When the rotating assembly 100 is mounted on the base assembly 200, the first fixing member 251 and the second fixing member 252 are overlapped and pressed between the rotating assembly 100 and the base assembly 200; the strip 22 is pressed between the first fixing member 251 and the second fixing member 252.

[0264] Thus, when assembling this embodiment, there is no need to additionally fix the strip 22. It is only necessary to install the adjustment component and the base component 200 and the various components between them in sequence, and connect the first fixing component 251, the strip 22 and the second fixing component 252 between the adjustment component and the base component 200 in sequence to ensure that the strip 22 is installed stably and reliably.

[0265] It should be noted that the first fixing member 251, the strip member 22, and the second fixing member 252 can be connected to the adjustment component and the base component 200 using different connection methods depending on the specific application scenario. For example, in this embodiment, when used for fabric products such as shoes, clothing, and bags, a sewing connection method can be selected. In this embodiment, when used for non-fabric products such as infant products, medical protective gear, and pet supplies, other suitable connection methods such as crimping can be selected.

[0266] In this embodiment, the specific structure of the first fixing member 251, the second fixing member 252, and the strip member 22 is not limited, as long as the connection requirements of this embodiment can be met.

[0267] As shown in Figures 40 and 41, in one embodiment, exemplary, a first fastener 251 is provided between the rotating assembly 100 and the base assembly 200 for fixing the strip 22.

[0268] When the rotating assembly 100 is mounted on the base assembly 200, the strip 22 is connected between the first fixing member 251 and the rotating assembly 100. When the adjusting assembly is mounted on the base assembly 200, the strip 22 is connected between the first fixing member 251 and the adjusting assembly. As shown in FIG36, this arrangement further simplifies the connection structure of the webbing 120, making this embodiment easier to assemble and improving its practicality.

[0269] Alternatively, when the rotating component 100 is installed on the base component 200, the first fixing member 251 is connected between the rotating component 100 and the base component 200, and the strip 22 is connected to the first fixing member 251. As shown in Figure 37, when the adjusting component is installed on the base component 200, the first fixing member 251 is connected between the adjusting component and the base component 200, and the strip 22 is connected to the first fixing member 251. The first fixing member 251 is provided with an opening 1022. The strip 22 can be connected to the opening 1022 of the first fixing member 251 by any method such as sewing, pressing, or wrapping, which can also make the connection of the strip 22 reliable.

[0270] As shown in Figure 42, in one embodiment, exemplarily, the fastening device 10 includes a belt assembly 400, and a base assembly 200 is mounted on the belt member 22 via the belt assembly 400. A first mating portion 300 is provided on the rotating assembly 100, and a second mating portion is provided on the belt assembly 400, the second mating portion being detachably mounted on the first mating portion 300. The second mating portion includes a strap member 420, one end of the belt member 22 being connected to the strap member 420, and the end of the belt member 22 away from the strap member 420 being connected to an article 20 using the belt member 22 or at least partially passing through the article 20 using the belt member 22 and connected to the base assembly 200.

[0271] Specifically, when the first mating part 300 is provided on the adjustment assembly, one end of the strap 420 is detachably connected to the first mating part 300 through the second mating part, and the end of the strap 420 away from the second mating part can be connected to the base assembly 200 or the item 20 to be fastened through the strap 22.

[0272] When one end of the strip 22 is connected to the base assembly 200, both ends of the strip 22 are connected to the base assembly 200 and the adjustment assembly respectively, forming a closed body between the base assembly 200 and the adjustment assembly. The position of the item 20 to be tightened is also set in the closed body. The tightening degree can be adjusted by changing the relative position of the adjustment assembly and the base assembly 200.

[0273] When one end of the strap 22 is connected to the item 20 to be fastened, the base assembly 200 is positioned on one side of the fastening location, and the end of the strap 22 is connected to the other side of the fastening location. During adjustment, the end of the strap 420 away from the item 20 to be fastened is detachably connected to the adjustment assembly via the second mating part and the first mating part 300. The adjustment assembly is slidably mounted on the base assembly 200. By changing the relative position of the adjustment assembly and the base assembly 200, the distance between the base assembly 200 and the connection point between the strap 420 and the item 20 to be fastened is changed, thereby adjusting the tightness of the item 20 to be fastened.

[0274] Referring to Figure 42, exemplarily, the first mating part 300 is provided with a first boss 310, and the belt assembly 400 includes a connecting plate 410. One end of the connecting plate 410 has a first groove 411, and the first boss 310 can be snapped into the first groove 411. The strap member 420 is disposed on the end of the connecting plate 410 away from the first groove 411. When using this embodiment, the first boss 310 is directly snapped into the first groove 411 on the connecting plate 410 to achieve the connection between the belt assembly 400 and the adjustment component. The connection method is simple and easy to operate. As long as the protrusion and the groove 133 fit well, the connection can remain stable even when the belt member 22 is under tension, and it is not easy to fall off. Compared with connection methods such as planar bonding or magnetic attraction, the fitting structure of the boss and the groove 133 is less likely to slip off when subjected to lateral force.

[0275] As shown in Figures 43 to 46, in one embodiment, exemplarily, the fastening device 10 includes a belt assembly 400, and a base assembly 200 is mounted on the belt member 22 via the belt assembly 400. A first mating portion 300 is provided on the base assembly 200, and a second mating portion is provided on the belt assembly 400, the second mating portion being detachably mounted on the first mating portion 300. The second mating portion includes a strap member 420, one end of the belt member 22 is connected to the strap member 420, and the end of the belt member 22 away from the strap member 420 is connected to an article 20 using the belt member 22 or at least partially passes through the article 20 using the belt member 22 and is connected to the rotating assembly 100.

[0276] Specifically, when the first mating part 300 is disposed on the base assembly 200, one end of the strap 420 is provided with a second mating part, which is detachably mounted on the first mating part 300. The end of the strap 420 away from the second mating part is connected to the adjusting assembly via a strip 22, and the strip 22 wraps around the position on the item 20 to be tightened. In other words, at this time, one end of the strip 22 is connected to the base assembly 200, and the other end is connected to the adjusting assembly to form a closed body, and the item 20 to be tightened is disposed between the closed bodies. When it is necessary to adjust the item 20 to be tightened, the relative position of the adjusting assembly and the base assembly 200 is changed, that is, the length of the strip 22 is changed, thereby changing the degree of tightening of the strip 22 on the item 20 to be tightened; when the length of the strip 22 is in the appropriate position and the item 20 to be tightened is tightened, the adjusting assembly and the base assembly 200 are fixed relative to each other, that is, the adjustment is completed.

[0277] Based on the above, referring to Figure 43, by way of example, the first mating part 300 includes a second boss 320, which is inclined in the second direction x away from the second mating part. The belt assembly 400 includes a connecting plate 410, one end of which is provided with a second groove 412, which is correspondingly provided with a second protrusion so that the second protrusion can be engaged in the second groove 412; the strap member 420 is provided on the edge of the connecting plate 410 away from the second groove 412.

[0278] After the inclined second protrusion 320 engages with the second groove 412, a self-locking effect is created. This means that when the belt 22 is subjected to tension, such as when worn by a user or when the item 20 is subjected to force, the belt assembly 400 will be tightened along the direction of tension. At this time, the inclined protrusion will embed more deeply into the groove 133, enhancing the connection's strength. Compared to a vertically positioned protrusion, the inclined structure better resists axial pull-out forces, preventing the belt assembly 400 from accidentally falling off. The inclined protrusion, in conjunction with the groove 133, can also disperse stress concentration points, preventing excessive localized stress that could lead to material fatigue or breakage.

[0279] Please refer to Figure 43. For example, two second protrusions 320 are provided, positioned along the third direction y on opposite sides of the first mating portion 300; a first magnet is disposed between the two second protrusions 320. Two second grooves 412 are also provided, positioned along the third direction y on opposite sides of the connecting plate 410; a second magnet is disposed between the two second grooves 412, and the first magnet can be magnetically connected to the second magnet.

[0280] The mechanical engagement between the second boss 320 and the second groove 412 provides structural positioning and load-bearing capacity, while the magnetic attraction between the first and second magnets provides additional axial locking force. This dual locking mechanism enhances connection stability and resistance to disengagement. When the strip 22 is subjected to significant tension or vibration, the magnetic attraction effectively prevents accidental disengagement due to vibration or impact.

[0281] For the user, the magnetic attraction provides a noticeable "sense of attraction" during installation, indicating that the device has been correctly installed. Even when the boss is not fully engaged with the edge of the groove 133, the magnetic force can correct the relative position of the belt assembly 400 and the base assembly 200, ensuring a good fit between the boss and the groove 133.

[0282] As shown in Figure 44, in one embodiment, exemplarily, the first mating part 300 is disposed on the side of the base assembly 200 away from the rotating assembly 100, and the first mating part 300 has an insertion groove 330. The belt assembly 400 includes a plug 430, which can be relatively fixed to the insertion groove 330 when it is inserted into the insertion groove 330. The connection and disassembly of the plug 430 and the insertion groove 330 are simple and convenient. The insertion structure can better resist lateral shear force and axial tensile force, and compared with simple snap or magnetic connection, it can better prevent the belt assembly 400 from falling off due to external force. The "embedded" connection formed by the plug 430 penetrating into the insertion groove 330 makes the force distribution of the connection part 1023 more uniform and the structural strength higher.

[0283] Especially when used in packaging in this embodiment, the combination of the connector 430 and the connector slot 330 is not only simple and easy to operate, but also makes the overall appearance of this embodiment more suitable for the packaging, making the packaging look more harmonious and improving the aesthetics of this embodiment.

[0284] Please refer to Figure 44. For example, a limiting groove 331 is provided in the insertion slot 330 at a position away from the opening 1022. The insertion connector 430 includes an elastic rod 431, and a locking block 432 is provided at the end of the elastic rod 431. When the insertion connector 430 is inserted into the insertion slot 330, the locking block 432 is locked into the limiting groove 331. In use, pressing the elastic rod 431 causes it to deform, allowing the locking block 432 to extend into the insertion slot 330 and along it until it reaches the limiting groove 331. After the locking block 432 is no longer restricted by the insertion slot 330, the elastic rod 431 returns to its original shape, allowing the locking block 432 to fall into the limiting groove 331. The limiting groove 331 limits the locking block 432, meaning the insertion slot 330 limits the insertion connector 430.

[0285] When it is necessary to remove the connector 430, press the elastic rod 431 to deform it, thereby causing the locking block 432 to disengage from the limiting groove 331, and the connector 430 can then be removed normally from the connector groove 330. In this embodiment, this physical constraint makes the connection more stable and reliable.

[0286] As shown in Figures 45 and 46, in one embodiment, exemplarily, a first mating portion 300 is disposed on the side of the base assembly 200 away from the rotating assembly 100. The first mating portion 300 includes a third groove 340, the extension direction of which is perpendicular to the adjustment direction of the rotating assembly 100, and the depth of the third groove 340 gradually increases along the extension direction. The belt assembly 400 includes a connecting plate 410, on which a third boss 414 is disposed. The third boss 414 is correspondingly disposed with the third groove 340, so that the third boss 414 can be inserted into the third groove 340.

[0287] As the third boss 414 slides into the groove 133, the contact pressure between the boss and the groove 133 increases as the depth of the groove 133 gradually increases, creating a self-locking effect. This structure provides strong pull-out resistance and anti-loosening capability without additional locking devices.

[0288] The force on the adjusting component is usually along the adjusting direction. In this embodiment, the third groove 340 is set perpendicular to the adjusting direction, that is, the third groove 340 is set laterally. This not only makes the space in this embodiment more reasonable, but also ensures that the third groove 340 and the third boss 414 will not disengage due to the force in the adjusting direction during the fit, further ensuring assembly reliability.

[0289] After the boss extends deep into the groove 133, it forms a large contact area and friction, effectively withstanding forces from multiple directions. This makes this embodiment particularly suitable for applications requiring high stability and strong load-bearing capacity, such as sports protective gear, mountaineering equipment, and safety harnesses.

[0290] Furthermore, the gradually deepening groove 133 design allows users to naturally feel the "sliding in" and "positioning" during the insertion process, facilitating quick alignment and installation. It also reduces connection instability issues caused by assembly errors, enhancing the user experience.

[0291] Please refer to Figures 45 and 46. For example, two third grooves 340 are arranged side-by-side along the second direction x in the first mating part 300. A magnet groove 341 is provided between the two third grooves 340, and a third magnet is disposed within the magnet groove 341. The extending direction of the magnet groove 341 is the same as the extending direction of the third grooves 340. Two corresponding third protrusions 414 are provided on the connecting plate 410. A magnet frame is provided between the two third protrusions 414, and a fourth magnet is disposed within the magnet frame. When the third protrusions 414 are engaged in the third grooves 340, the magnet frame is engaged in the magnet grooves 341, and the third magnet is attracted to the fourth magnet.

[0292] When the third protrusion 414 is inserted into the third groove 340, the magnet holder gradually extends into the magnet slot 341. Not only do the third protrusion 414 and the third groove 340 provide a fixing effect, but the magnet holder and the magnet slot 341 also serve as auxiliary connections and fixation mechanisms. This dual locking mechanism enhances the fixing effect; the protrusion and groove 133 provide rigid support and positioning, while the magnetic attraction provides additional axial locking force. Even under external forces such as vibration, impact, or pulling, it effectively prevents accidental detachment.

[0293] The structure of parallel double grooves 133 and double bosses can effectively resist lateral shear force, and the middle magnet groove 341 and magnet frame further enhance the ability to resist torsion and lateral displacement.

[0294] Furthermore, the automatic alignment effect is significant. When approaching the connection position, the magnet guides the magnet holder to automatically align with the magnet slot 341, enhancing the user's sense of "placement" and improving assembly efficiency. Insertion and removal operations can be completed with one hand, without the need for special force or angle adjustments. The operation is intuitive and effortless, making it suitable for applications like clothing, bags, shoes, and helmets that require frequent disassembly and assembly, as described in this embodiment.

[0295] Please refer to Figures 45 and 46. For example, a blocking member 342 is provided on the magnet groove 341, which can partially block the third groove 340 in the third direction y. A sloping groove 415 is provided on the connecting plate 410 near the magnet frame. When the third boss 414 is inserted into the third groove 340, the blocking member 342 is inserted into the sloping groove 415. After the blocking member 342 is inserted into the sloping groove 415, a physical blocking structure is formed, restricting the third boss 414 from sliding out of the third groove 340 axially. Even under extreme vibration or tension, this effectively prevents the belt assembly 400 from falling off due to magnetic failure or loosening of the connection, significantly improving the safety and reliability of the connection.

[0296] After the blocking member 342 is inserted into the inclined groove 415, it not only restricts axial movement, but also increases the constraints in the lateral and rotational directions. The angle design of the inclined groove 415 can optimize the force distribution, so that the connection structure can better resist lateral forces and torques, enhance the structural strength of this embodiment, and is suitable for dynamic load environments.

[0297] As shown in Figures 11, 20 and 21, in any of the above embodiments, the rotating member 101 further includes a rotating cover 120, a transmission member 110, a main body 130 and a check member 140.

[0298] As shown in Figure 22, a gear 111 is provided on the side of the transmission member 110 facing the base assembly 200. There can be one gear 111 or multiple gears 111 to form a gear group that meshes with each other. Multiple first tooth grooves 112 are provided on the end of the transmission member 110 away from the gear 111.

[0299] Referring to Figures 23 and 24, the main body 130 is disposed on the sliding seat 102. The main body 130 can be snapped and fixed to the sliding seat 102, or it can be fixed by bolt connection. The main body 130 has a mounting cavity 131 for mounting the transmission component 110, and the transmission component 110 can rotate within the mounting cavity 131.

[0300] As shown in Figures 34 to 36, the main body 130 has a first opening 1311 and a second opening 1312 that pass through it along the first direction z. The first opening 1311 and the second opening 1312 are respectively connected to the mounting cavity 131. The first opening 1311 is located at the top of the main body 130, and the second opening 1312 is located at the bottom of the main body 130.

[0301] Referring to Figures 27 and 28, the check valve 140 includes a first engaging portion 1421 and a second engaging portion 1431. The check valve 140 is disposed on one of the rotating cover 120 and the main body 130, while the other is provided with a plurality of second toothed grooves 132 that engage with the second engaging portion 1431. The first engaging portion 1421 engages with the plurality of first toothed grooves 112. In this embodiment, the check valve 140 is fixed on the rotating cover 120, and the main body 130 is provided with a plurality of second toothed grooves 132 as an example. Of course, in other embodiments, the check valve 140 may also be disposed on the main body 130, and the rotating cover 120 may be provided with a plurality of second toothed grooves 132.

[0302] When the rotating cover 120 rotates along the first preset rotation direction under the action of external force, the first engaging part 1421 engages with the first toothed groove 112 to drive the transmission member 110 to rotate. The transmission member 110 then drives the gear 111 to rotate, thereby enabling the sliding seat 102 to move relative to the base body 210. At this time, the second engaging part 1431 disengages from the second toothed groove 132. When the rotating cover 120 rotates along the second preset rotation direction, the first engaging part 1421 disengages from the first toothed groove 112, and the second engaging part 1431 engages with the second toothed groove 132. The transmission member 110 rotates freely around its rotation axis. By pulling the belt 22 or the sliding seat 102, the sliding seat 102 can move relative to the base body 210, and the belt 22 can be released.

[0303] It should be noted that the first preset rotation direction is opposite to the second preset rotation direction. In this embodiment, the first preset rotation direction is clockwise and the second preset rotation direction is counterclockwise. Of course, in other embodiments, the first preset rotation direction can be counterclockwise and the second preset rotation direction can be clockwise.

[0304] As shown in Figures 26 and 28, in one embodiment, exemplaryly, the second engaging portion 1431 is disposed near the rotating cover 120 relative to the first engaging portion 1421, so as to engage the second engaging portion 1431 with the second toothed groove 132. Exemplarily, both the first engaging portion 1421 and the second engaging portion 1431 are ratchet pawls.

[0305] As shown in Figures 24 and 26, in one embodiment, for example, a check valve 140 is disposed on a rotating cover 120, and a groove 133 is provided on the side of the main body 130 facing the rotating cover 120. A plurality of second toothed grooves 132 are arranged circumferentially along the inner wall of the groove 133, and the second snap-fit ​​portion 1431 can engage with the second toothed grooves 132.

[0306] As shown in Figures 31 to 33, in one embodiment, for example, the transmission member 110 has a stepped portion 113 formed on the side facing the rotating cover 120. An annular groove 1131 is formed on the side of the stepped portion 113 near the rotating cover 120. A plurality of first toothed grooves 112 are arranged along the inner wall of the annular groove 1131. The shoulder of the stepped portion 113 abuts against the cavity wall of the mounting cavity 131 near the rotating cover 120. This design facilitates the engagement and connection between the first snap-fit ​​portion 1421 and the first toothed grooves 112.

[0307] As shown in Figure 29, in one embodiment, the tooth orientation of the first tooth groove 112 is different from that of the second tooth groove 132. This ensures that when the rotating cover 120 rotates along the first preset rotation direction, the first engaging part 1421 engages with the first tooth groove 112, while the second engaging part 1431 disengages from the second tooth groove 132, thereby enabling the rotation of the transmission member 110. When the rotating cover 120 rotates a preset angle along the second preset rotation direction, the first engaging part 1421 and the first tooth groove 112 change from an engaged state to a disengaged state, so that the transmission member 110 can automatically rotate when the belt 22 is pulled to move the sliding seat 102.

[0308] As shown in Figure 27, in one embodiment, the check valve 140 further includes a fixing part 141, a first elastic arm 142, and a second elastic arm 143. The fixing part 141 is connected to the rotating cover 120. The first elastic arm 142 and the second elastic arm 143 are spaced apart circumferentially along the fixing part 141 and offset along the first direction z. A first locking part 1421 is disposed on the first elastic arm 142, and a second locking part 1431 is disposed on the second elastic arm 143. Thus, since the first elastic arm 142 and the second elastic arm 143 are both offset along the first direction z (the height direction of the fastening device 10), and the first elastic arm 142 and the second elastic arm 143 respectively form elastic deformation spaces with the fixing part 141, when the rotating cover 120 is rotated, the second locking part 1431 is squeezed by the second tooth groove 132, causing the second elastic arm 143 to deform, or the first locking part 1421 is squeezed by the first tooth groove, causing the first elastic arm 142 to deform.

[0309] As shown in Figures 25 and 26, in one embodiment, the rotating cover 120 is provided with an elastic locking post 121, and the fixing part 141 has a through hole 1411 extending through it along the first direction z. The elastic locking post 121 passes through the through hole 1411 and is engaged with the fixing part 141. In this embodiment, the elastic locking post 121 cooperates with the through hole 1411 of the fixing part 141 to fix the check valve 140 on the rotating cover 120, which facilitates assembly and disassembly.

[0310] As shown in Figures 25 and 26, in one embodiment, the rotating cover 120 is further provided with a plurality of first limiting blocks 122 and a plurality of second limiting blocks 123. The plurality of first limiting blocks 122 are arranged circumferentially along the fixing part 141 and abut against the fixing part 141, which is located between the elastic locking post 121 and the first limiting blocks 122. A blocking part 1422 is provided on the first elastic arm 142, which can abut against the second limiting block 123, and the second limiting block 123 is located between the blocking part 1422 and the second elastic arm 143.

[0311] In this embodiment, by setting multiple first limiting blocks 122 and second limiting blocks 123, the rotating cover 120 drives the check member 140 to rotate synchronously when it rotates, while ensuring that the check member 140 and the rotating cover 120 are relatively stationary.

[0312] As shown in Figures 11a and 11b, in another embodiment different from the rotating component 101 described above, the rotating component 101 includes a sliding seat 102, a transmission component 110, a main body 130, a rotating cover 120, a guide component 160, a check component 140, and an elastic component 180. In this embodiment, the rotating component 101 can be operated by repeated pressing.

[0313] A gear 111 is provided on the side of the transmission member 110 facing the base assembly 200, and an annular tooth groove 115 is provided on the end of the transmission member 110 away from the gear 111.

[0314] As shown in Figures 30 and 30a, the main body 130 is disposed on the sliding seat 102. The main body 130 has a mounting cavity 131 for mounting the transmission component 110, and a first opening 1311 and a second opening 1312 are provided on the main body 130 along the first direction z, which are connected to the mounting cavity 131.

[0315] A linkage part 124 is provided on the side of the rotating cover 120 facing the main body 130; a check member 140 is provided on the main body 130, and an elastic arm 144 is provided on the check member 140, and a check part 1441 that cooperates with the linkage part 124 is provided on the elastic arm 144.

[0316] The guide member 160 has an annular tooth 170 on the side facing the transmission member 110 that meshes with the annular tooth groove 115. The guide member 160 is connected to the rotating cover 120. For example, the guide member 160 can be fixed to the rotating cover 120 by a locking screw. The guide member 160 has a stepped hole, and the rotating cover 120 has a connecting post with a threaded hole 215. The locking screw passes through the stepped hole and is screwed into the threaded hole 215 to fix the guide member 160 to the rotating cover 120.

[0317] The elastic element 180 abuts between the rotating cover 120 and the sliding seat 102, and has elastic potential energy when the elastic element 180 is compressed.

[0318] When the rotating cover 120 is pressed under external force, the check part 1441 engages with the linkage part 124, and the rotating cover 120 can only rotate in the first preset rotation direction. The annular tooth 170 engages with the annular tooth groove 115 to drive the transmission member 110 to rotate. When the rotating cover 120 is pressed again, the check part 1441 engages with the linkage part 124, the annular tooth 170 disengages from the annular tooth groove 115, and the transmission member 110 can rotate freely around its rotation axis. At this time, the belt 22 can be loosened and adjusted in the tightened state.

[0319] As shown in Figures 11c and 11d, in another embodiment different from the rotating component 101 described above, the rotating component 101 includes a sliding seat 102, a transmission component 110, a main body 130, a rotating cover 120, and a check valve 140. In this embodiment, the rotating component 101 can be operated by pulling and pressing.

[0320] A gear 111 is provided on the side of the transmission member 110 facing the base assembly 200, and an annular tooth groove 115 is provided on the end of the transmission member 110 away from the gear 111. A linkage part 124 and a cylindrical member 125 with annular teeth 170 are provided on the side of the rotating cover 120 facing the main body 130. The annular teeth 170 can mesh with the annular tooth groove 115 so that the transmission member 110 can be driven to rotate when the rotating cover 120 rotates.

[0321] As shown in Figures 30 and 30a, the main body 130 is disposed on the sliding seat 102. The main body 130 has a mounting cavity 131 for mounting the transmission component 110, and a first opening 1311 and a second opening 1312 are provided on the main body 130 along the first direction z, which are connected to the mounting cavity 131 respectively.

[0322] A check valve 140 is provided on the main body 130. An elastic arm 144 is provided on the check valve 140, and a check valve 1441 that cooperates with the linkage part 124 is provided on the elastic arm 144.

[0323] When the rotating cover 120 is pressed by an external force, the stop part 1441 engages with the linkage part 124, and the rotating cover 120 can only rotate in the first preset rotation direction. The annular tooth 170 engages with the annular tooth groove 115 to drive the transmission member 110 to rotate. When the rotating cover 120 is pulled up, the annular tooth 170 disengages from the annular tooth groove 115, and the transmission member 110 can rotate freely around its rotation axis. At this time, the belt member 22 can be loosened and adjusted in the tightened state.

[0324] Of course, in other embodiments, the structure of the rotating member 101 can also be used in other ways, such as replacing the structure of the transmission member 110 in this application with the structure of the centerline wheel such as CN118701491A, CN220364187U, CN220364182U, CN206413842U, CN218960176U, CN114735548A, CN106723663A.

[0325] As shown in Figure 33, in one embodiment, the transmission member 110 has a stepped hole 114 extending through it along the first direction z. In this embodiment, the stepped hole 114 facilitates the assembly of the first magnetic member 150, and the diameter of the stepped hole 114 decreases from the direction away from the rotating cover 120. When the first magnetic member 150 is magnetically connected, it can prevent the first magnetic member 150 from detaching from the stepped hole 114 due to the magnetic attraction of the second magnetic member 230.

[0326] As shown in Figures 22 to 24, in one embodiment, the gear 111 is at least partially located outside the second opening 1312 along the first direction z. This facilitates the engagement of the gear 111 with the plurality of slots 2201 (racks).

[0327] As shown in Figure 11, in one embodiment, for example, the first magnetic element 150 is shaped like a circle, rectangle, rhombus, ellipse, triangle, pentagon, hexagon, or irregular shape; the second magnetic element 230 is also shaped like a circle, rectangle, rhombus, ellipse, triangle, pentagon, hexagon, or irregular shape. In this embodiment, the first magnetic element 150 and the second magnetic element 230 are exemplified by a circle. Of course, in other embodiments, the first magnetic element 150 and the second magnetic element 230 can also be any of the shapes described above.

[0328] As shown in Figures 48 to 71, embodiments of this application also provide an article 20 with a fastening device 10, including an article body 21, a strap 22, and the fastening device 10 in any of the above embodiments. The strap 22 is connected to the article body 21 so that the tightness can be adjusted by adjusting the length of the strap 22 through the fastening device 10.

[0329] The article 20 with fastening device 10 provided in the embodiments of this application has the fastening device 10 in any of the above embodiments. Therefore, the article 20 with fastening device 10 has all the beneficial effects of fastening device 10, which will not be described in detail here.

[0330] As shown in Figures 50 to 57 and Figures 62 and 63, in one embodiment, for example, one end of the strip 22 is connected to the article body 21, the other end of the strip 22 is connected to the sliding seat 102, and the article body 21 is connected to the base body 210.

[0331] As shown in Figures 66, 67, 68, and 69, in another embodiment, the strip 22 includes a first strip body 22a and a second strip body 22b. One end of the first strip body 22a is connected to the article body 21, and the other end of the first strip body 22a is connected to the sliding seat 102; one end of the second strip body 22b is connected to the article body 21, and the other end of the second strip body 22b is connected to the base body 210.

[0332] In one embodiment, item 20 includes shoes (see Figures 48 to 57, including toddler shoes, functional shoes, athletic shoes, cotton shoes, leather shoes, sandals, cycling shoes, weightlifting shoes, etc.), clothing (see Figures 67 and 71, including mountaineering clothing, sportswear, military uniforms, underwear, etc.), bags (see Figures 60 to 66, including backpacks, shoulder bags, handbags, running bags, etc.), helmets (see Figure 70), belts, bras, hats (see Figure 68), gloves (see Figure 69), and tourniquets. Of course, item 20 can also be other products that require the fastening device 10 to loosen or tighten, such as wearable devices (watches).

[0333] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0334] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A fastening device, characterized in that, For adjusting the tightness of an article (20) using a strap (22), the fastening device has a first direction (z) and a second direction (x) that are perpendicular to each other, and the fastening device includes: A rotating assembly (100) includes a rotating component (101) and a sliding seat (102). The sliding seat (102) is used to connect to one end of the strip (22) and is provided with a receiving cavity (1021). Along the first direction (z), openings (1022) communicating with the receiving cavity (1021) are respectively opened on opposite sides of the sliding seat (102). A portion of the rotating component (101) is disposed in the receiving cavity (1021). At least one gear (111) is provided on the rotating component (101). A base assembly (200) includes a base body (210) and a sliding seat (102) slidably connected along a second direction (x). A guide platform (214) is provided on the side of the base body (210) facing the sliding seat (102). Two guide platforms (214) are symmetrically arranged on the base body (210), and a slide rail (220) is formed between the two guide platforms (214). The slide (220) is provided with a plurality of slots (2201) along the second direction (x). The gear (111) can mesh with the slots (2201). Under the action of external force, the rotating member (101) rotates to make the gear (111) move along the plurality of slots (2201) so as to realize that the sliding seat (102) moves relative to the base body (210) along the second direction (x) to drive the belt member (22) to move. The rotating assembly (100) or the base assembly (200) is provided with a strap (420) for connecting the strap (22).

2. The fastening device according to claim 1, characterized in that, The rotating assembly (100) further includes a first magnetic element (150), which is disposed on the rotating assembly (101); The base assembly (200) further includes a second magnetic element (230), which is disposed on the base body (210). The second magnetic element (230) is magnetically connected to the first magnetic element (150) so that the rotating assembly (100) is detachably connected to the base assembly (200) and the initial position of the rotating assembly (100) and the base assembly (200) is positioned.

3. The fastening device according to claim 2, characterized in that, The base body (210) is provided with a mounting groove (211) for mounting the second magnetic component (230), and the mounting groove (211) is located on the side of the base body (210) away from the slide (220).

4. The fastening device according to claim 3, characterized in that, The opening of the mounting groove (211) is positioned toward the side away from the rotating component (101).

5. The fastening device according to claim 4, characterized in that, The mounting groove (211) is formed by recessing the side of the base body (210) away from the rotating member (101) towards the rotating member (101).

6. The fastening device according to claim 2, characterized in that, The base body (210) is provided with a recessed portion, which is located in the slide (220) or on the side of the base body (210) away from the slide (220); An installation groove (211) is provided in the recessed portion, and the second magnetic component (230) is installed in the installation groove (211).

7. The fastening device according to claim 6, characterized in that, The recessed portion is provided with a protrusion (212), and the mounting groove (211) is formed in the protrusion (212).

8. The fastening device according to claim 7, characterized in that, The height of the protrusion (212) along the first direction (z) is less than the depth of the recess.

9. The fastening device according to claim 8, characterized in that, The mounting slots (211) are provided in a plurality of places on the base body (210) along the second direction (x).

10. The fastening device according to claim 2, characterized in that, A limiting part (223) is provided on the base body (210), and the limiting part (223) is provided along the outer wall of the slide (220); The sliding seat (102) is provided with a connecting part (1023). When the sliding seat (102) moves relative to the base body (210), the connecting part (1023) can abut against the limiting part (223) and can move along the second direction (x). The limiting part (223) is used to restrict the sliding seat (102) from moving along the first direction (z).

11. The fastening device according to claim 10, characterized in that, The limiting part (223) includes a first limiting segment (2231) and a second limiting segment (2232). The first limiting segment (2231) is disposed along the second direction (x), and the second limiting segment (2232) is disposed at the end of the first limiting segment (2231) away from the second magnetic element (230). The second limiting segment (2232) is disposed at an angle to the first limiting segment (2231).

12. The fastening device according to claim 11, characterized in that, The second limiting segment (2232) is perpendicular to the first limiting segment (2231).

13. The fastening device according to claim 11, characterized in that, The shape of the first limiting segment (2231) corresponds to that of the base body (210), and the first limiting segment (2231) is set as a straight line segment or an arc segment.

14. The fastening device according to claim 11, characterized in that, Along the second direction (x), the length of the first limiting segment (2231) is less than the length of the slide (220).

15. The fastening device according to claim 11, characterized in that, The end of the first limiting segment (2231) away from the second limiting segment (2232) has an arc-shaped chamfer (2233).

16. The fastening device according to claim 15, characterized in that, The base body (210) is also provided with a stop (213), the stop (213) is provided at one end of the outer wall of the slide (220) along the second direction (x), the limiting part (223) is provided on the outer wall of the slide (220) along the second direction (x), and a clearance space (2131) is defined between one end of the limiting part (223) and the stop (213), and the end of the limiting part (223) away from the stop (213) extends along the second direction (x) to the end of the outer wall of the slide (220).

17. The fastening device according to claim 16, characterized in that, The stop part (213) has a snap-fit ​​surface on the side facing the limiting part (223), and the end of the connecting part (1023) near the sliding seat (102) and the strip (22) along the second direction (x) can cooperate with the snap-fit ​​surface.

18. The fastening device according to claim 16, characterized in that, The fastening device further includes a third direction (y), which is perpendicular to the first direction (z) and the second direction (x) respectively; Two of each of the limiting part (223) and the stop part (213) are provided, and the two limiting parts (223) are provided on opposite sides of the slide (220) along the third direction (y); Two stops (213) are provided, and the two stops (213) are provided on opposite sides of the slide (220) along the third direction (y); The number of the connecting parts (1023) matches the number of the limiting parts (223).

19. The fastening device according to claim 1, characterized in that, The slide (220) is formed by two guide platforms (214), and the slide (220) and the base body (210) are on the same plane.

20. The fastening device according to claim 19, characterized in that, The slide (220) includes a first section (221) and a second section (222), which are sequentially connected along the first direction (z).

21. The fastening device according to claim 1, characterized in that, The slide (220) has notches (2221) at both ends along the second direction (x).

22. The fastening device according to claim 20, characterized in that, The plurality of slots (2201) form a rack, the rack being arranged along the second direction (x), and a portion of the rack along the first direction (z) being located on the first segment (221), and another portion of the rack along the first direction (z) being located on the second segment (222).

23. The fastening device according to claim 20, characterized in that, The fastening device further includes a third direction (y), which is perpendicular to the first direction (z) and the second direction (x) respectively; The rack of the first segment (221) is lower than the rack of the second segment (222) in the third direction (y).

24. The fastening device according to claim 22, characterized in that, The tooth profile of the rack can be set as straight teeth, helical teeth, double helical teeth or cylindrical teeth; the tooth profile of the gear (111) in the rotating assembly (100) is set to correspond to the tooth profile of the rack.

25. The fastening device according to claim 19, characterized in that, The slide (220) includes a first section (221), and a notch (2221) is formed at one end of the first section (221) along the second direction (x).

26. The fastening device according to claim 25, characterized in that, The first segment (221) is provided with a marking part (2211) for marking the adjustment direction of the rotating component (100); the marking part (2211) is located at the bottom of the first segment (221) near the notch (2221).

27. The fastening device according to claim 1, characterized in that, The fastening device further includes a third direction (y), which is perpendicular to the first direction (z) and the second direction (x) respectively; The plurality of slots (2201) form a rack, and the rack is provided with one or more racks, which are arranged relative to each other along the third direction (y).

28. The fastening device according to claim 27, characterized in that, Along the first direction (z), the projected area of ​​the slide (220) on the base body (210) is smaller than the area of ​​the side of the base body (210) facing the rotating assembly (100).

29. The fastening device according to claim 1, characterized in that, Multiple gears (111) are provided, and multiple gears (111) constitute a gear (111) group, wherein one of the gears (111) meshes with the slot (2201).

30. The fastening device according to claim 1, characterized in that, Along the second direction (x), the two opposite groove walls in the slide (220) are both arc-shaped groove walls (224).

31. The fastening device according to claim 1, characterized in that, The side of the base body (210) facing away from the rotating assembly (100) is a plane, which is used to bond with the article (20) or to bond with the strip (22).

32. The fastening device according to claim 1, characterized in that, The base body (210) is provided with a connecting hole (2101), and the strip (22) can be inserted through the connecting hole (2101) to fix the strip (22) on the base body (210).

33. The fastening device according to claim 1, characterized in that, The base body (210) is provided with a sewing groove (240) for sewing the base body (210) to the item (20) to be fastened; The sewing groove (240) is formed in the slide (220), and the sewing groove (240) does not contact the card slot (2201).

34. The fastening device according to claim 1, characterized in that, The base body (210) can be connected to the item (20) to be fastened by any one or more of the following methods: bonding, pressing, sewing, screwing, integral molding, etc.

35. The fastening device according to claim 1, characterized in that, A first fixing member (251) and a second fixing member (252) are provided between the rotating assembly (100) and the base assembly (200) for fixing the strip (22); When the rotating assembly (100) is mounted on the base assembly (200), the first fixing member (251) and the second fixing member (252) are overlapped and pressed between the rotating assembly (100) and the base assembly (200); the strip (22) is pressed between the first fixing member (251) and the second fixing member (252).

36. The fastening device according to claim 1, characterized in that, A first fastener (251) is provided between the rotating assembly (100) and the base assembly (200) for fixing the strip (22); When the rotating assembly (100) is mounted on the base assembly (200), the strip (22) is connected between the first fixing member (251) and the rotating assembly (100); Alternatively, when the rotating assembly (100) is mounted on the base assembly (200), the first fixing member (251) is connected between the rotating assembly (100) and the base assembly (200), and the strip (22) is connected to the first fixing member (251).

37. The fastening device according to claim 1, characterized in that, The fastening device includes a belt assembly (400), and the base assembly (200) is mounted on the belt (22) via the belt assembly (400); The rotating assembly (100) is provided with a first mating part (300), and the belt assembly (400) is provided with a second mating part, the second mating part being detachably mounted on the first mating part (300); The second mating part includes a strap (420), one end of the strap (22) is connected to the strap (420), and the end of the strap (22) away from the strap (420) is connected to an article (20) using the strap (22) or at least partially passes through the article (20) using the strap (22) and is connected to the base assembly (200).

38. The fastening device according to claim 37, characterized in that, The first mating part (300) is provided with a first boss (310), and the belt assembly (400) includes a connecting plate (410). One end of the connecting plate (410) is provided with a first groove (411), and the first boss (310) can be snapped into the first groove (411). The strap (420) is disposed on the end of the connecting plate (410) away from the first groove (411).

39. The fastening device according to claim 1, characterized in that, The fastening device includes a belt assembly (400), and the base assembly (200) is mounted on the belt (22) via the belt assembly (400); The base assembly (200) is provided with a first mating part (300), and the belt assembly (400) is provided with a second mating part, the second mating part being detachably mounted on the first mating part (300); The second mating part includes a strap (420), one end of the strap (22) is connected to the strap (420), and the end of the strap (22) away from the strap (420) is connected to the article (20) using the strap (22) or at least partially passes through the article (20) using the strap (22) and is connected to the rotating assembly (100).

40. The fastening device according to claim 39, characterized in that, The first mating part (300) includes a second boss (320), which is inclined in the second direction (x) in a direction away from the second mating part; The belt assembly (400) includes a connecting plate (410), one end of which is provided with a second groove (412), the second groove (412) being correspondingly provided with the second protrusion so that the second protrusion can be engaged in the second groove (412); the strap member (420) is provided on the edge of the connecting plate (410) away from the second groove (412).

41. The fastening device according to claim 40, characterized in that, Two second protrusions (320) are provided, and the two second protrusions (320) are provided on opposite sides of the first mating part (300) along the third direction (y); a first magnet is provided between the two second protrusions (320); Two second grooves (412) are also provided, and the two second grooves (412) are provided on opposite sides of the connecting plate (410) along the third direction (y); a second magnet is provided between the two second grooves (412), and the first magnet can be magnetically connected to the second magnet.

42. The fastening device according to claim 39, characterized in that, The first mating part (300) is disposed on the side of the base assembly (200) away from the rotating assembly (100), and the first mating part (300) is provided with a insertion groove (330); The belt assembly (400) includes a connector (430), which can be fixed relative to the connector (330) when it is inserted into the connector slot (330).

43. The fastening device according to claim 42, characterized in that, A limiting groove (331) is provided in the insertion groove (330) at a position away from the opening (1022). The insertion connector (430) includes an elastic rod (431), and a locking block (432) is provided at the end of the elastic rod (431). When the insertion connector (430) is inserted into the insertion groove (330), the locking block (432) is locked into the limiting groove (331).

44. The fastening device according to claim 39, characterized in that, The first mating part (300) is disposed on the base assembly (200) on the side away from the rotating assembly (100). The first mating part (300) includes a third groove (340). The extension direction of the third groove (340) is perpendicular to the adjustment direction of the rotating assembly (100), and the depth of the third groove (340) gradually increases along the extension direction. The belt assembly (400) includes a connecting plate (410) on which a third boss (414) is provided. The third boss (414) is correspondingly provided with the third groove (340) so that the third boss (414) can be inserted into the third groove (340).

45. The fastening device according to claim 44, characterized in that, Two third grooves (340) are arranged side by side on the first mating part (300) along the second direction (x). A magnet groove (341) is provided between the two third grooves (340). A third magnet is provided in the magnet groove (341). The extension direction of the magnet groove (341) is the same as the extension direction of the third groove (340). The connecting plate (410) is provided with two third protrusions (414), and a magnet frame is provided between the two third protrusions (414). A fourth magnet is provided in the magnet frame. When the third protrusion (414) is engaged in the third groove (340), the magnet frame is engaged in the magnet slot (341), and the third magnet is attracted to the fourth magnet.

46. ​​The fastening device according to claim 45, characterized in that, A blocking member (342) is provided on the magnet groove (341), and the blocking member (342) can block part of the third groove (340) in the third direction (y); an inclined groove (415) is provided on the connecting plate (410) near the magnet frame; When the third boss (414) is inserted into the third groove (340), the blocking member (342) is inserted into the inclined groove (415).

47. The fastening device according to any one of claims 1 to 46, characterized in that, The rotating component (101) further includes: Rotating cover (120); The transmission member (110) has the gear (111) on the side facing the base assembly (200), and the end of the transmission member (110) away from the gear (111) has a plurality of first tooth grooves (112); The main body (130) is disposed on the sliding seat (102). The main body (130) has a mounting cavity (131) for mounting the transmission member (110). The main body (130) has a first opening (1311) and a second opening (1312) through it along the first direction (z). The first opening (1311) and the second opening (1312) are respectively connected to the mounting cavity (131). A check valve (140) includes a first snap-fit ​​portion (1421) and a second snap-fit ​​portion (1431). The check valve (140) is disposed on one of the rotating cover (120) and the main body (130), and the other is provided with a plurality of second toothed grooves (132) that cooperate with the second snap-fit ​​portion (1431). The first snap-fit ​​portion (1421) engages with the plurality of first toothed grooves (112). When the rotating cover (120) rotates along the first preset rotation direction under the action of external force, the first locking part (1421) engages with the first tooth groove (112) to drive the transmission member (110) to rotate, and the second locking part (1431) disengages from the second tooth groove (132); when the rotating cover (120) rotates along the second preset rotation direction, the first locking part (1421) disengages from the first tooth groove (112), the second locking part (1431) engages with the second tooth groove (132), and the transmission member (110) rotates freely around its rotation axis.

48. The fastening device according to claim 47, characterized in that, The second latching part (1431) is disposed near the rotating cover (120) relative to the first latching part (1421), and both the first latching part (1421) and the second latching part (1431) are ratchet pawls.

49. The fastening device according to claim 48, characterized in that, The check valve (140) is disposed on the rotating cover (120), and a groove (133) is provided on the side of the main body (130) facing the rotating cover (120), and the plurality of second toothed grooves (132) are arranged circumferentially along the inner groove wall of the groove (133).

50. The fastening device according to claim 49, characterized in that, The transmission member (110) has a stepped portion (113) on the side facing the rotating cover (120). The stepped portion (113) has an annular groove (1131) on the side near the rotating cover (120). A plurality of first toothed grooves (112) are arranged along the inner wall of the annular groove (1131). The shoulder of the stepped portion (113) abuts against the cavity wall of the mounting cavity (131) near the rotating cover (120).

51. The fastening device according to claim 50, characterized in that, The orientation of the tooth opening of the first tooth groove (112) is different from that of the tooth opening of the second tooth groove (132).

52. The fastening device according to claim 49, characterized in that, The check valve (140) further includes a fixing part (141), a first elastic arm (142), and a second elastic arm (143). The fixing part (141) is connected to the rotating cover (120). The first elastic arm (142) and the second elastic arm (143) are spaced apart circumferentially along the fixing part (141) and offset along the first direction (z). The first snap-fit ​​part (1421) is disposed on the first elastic arm (142), and the second snap-fit ​​part (1431) is disposed on the second elastic arm (143).

53. The fastening device according to claim 52, characterized in that, The rotating cover (120) is provided with an elastic locking post (121), and the fixing part (141) is provided with a through hole (1411) along the first direction (z). The elastic locking post (121) passes through the through hole (1411) and is locked onto the fixing part (141).

54. The fastening device according to claim 53, characterized in that, The rotating cover (120) is also provided with a plurality of first limiting blocks (122) and a plurality of second limiting blocks (123). The plurality of first limiting blocks (122) are arranged along the circumference of the fixing part (141) and abut against the fixing part (141). The fixing part (141) is located between the elastic locking post (121) and the first limiting blocks (122). The first elastic arm (142) is provided with a blocking part (1422), which can abut against the second limiting block (123), and the second limiting block (123) is located between the blocking part (1422) and the second elastic arm (143).

55. The fastening device according to claim 47, characterized in that, The transmission component (110) has a stepped hole (114) extending through it along the first direction (z).

56. The fastening device according to claim 47, characterized in that, The gear (111) is at least partially located outside the second opening (1312) along the first direction (z).

57. The fastening device according to any one of claims 1 to 47, characterized in that, The rotating component (101) further includes: The transmission member (110) has the gear (111) provided on the side facing the base assembly (200), and the end of the transmission member (110) away from the gear (111) is provided with an annular tooth groove (115); The main body (130) is disposed on the sliding seat (102). The main body (130) has a mounting cavity (131) for mounting the transmission member (110). The main body (130) has a first opening (1311) and a second opening (1312) through it along the first direction (z). The first opening (1311) and the second opening (1312) are respectively connected to the mounting cavity (131). The rotating cover (120) has a linkage part (124) on the side facing the main body (130); A guide member (160) is provided with an annular tooth (170) that meshes with the annular tooth groove (115) on the side facing the transmission member (110), and the guide member (160) is connected to the rotating cover (120). Check element (140), the check element (140) is disposed on the main body (130), the check element (140) is provided with an elastic arm (144), and the elastic arm (144) is provided with a check part (1441) that cooperates with the linkage part (124); An elastic element (180) abuts between the rotating cover (120) and the sliding seat (102); When the rotating cover (120) is pressed under external force, the check valve (1441) engages with the linkage (124), and the rotating cover (120) can only rotate in the first preset rotation direction. The annular tooth (170) engages with the annular tooth groove (115) to drive the transmission member (110) to rotate. When the rotating cover (120) is pressed again, the check valve (1441) engages with the linkage (124), the annular tooth (170) disengages from the annular tooth groove (115), and the transmission member (110) can rotate freely around its rotation axis.

58. The fastening device according to any one of claims 1 to 47, characterized in that, The rotating component (101) further includes: The transmission member (110) has the gear (111) provided on the side facing the base assembly (200), and the end of the transmission member (110) away from the gear (111) is provided with an annular tooth groove (115); The main body (130) is disposed on the sliding seat (102). The main body (130) has a mounting cavity (131) for mounting the transmission member (110). The main body (130) has a first opening (1311) and a second opening (1312) through it along the first direction (z). The first opening (1311) and the second opening (1312) are respectively connected to the mounting cavity (131). The rotating cover (120) has a linkage part (124) and a cylindrical member (125) with annular teeth (170) on one side facing the main body (130), the annular teeth (170) being able to engage with the annular tooth groove (115); Check element (140), the check element (140) is disposed on the main body (130), the check element (140) is provided with an elastic arm (144), and the elastic arm (144) is provided with a check part (1441) that cooperates with the linkage part (124); Under the action of external force, when the rotating cover (120) is pressed, the stop part (1441) engages with the linkage part (124), and the rotating cover (120) can only rotate in the first preset rotation direction. The annular tooth (170) engages with the annular tooth groove (115) to drive the transmission member (110) to rotate. When the rotating cover (120) is pulled up, the annular tooth (170) disengages from the annular tooth groove (115), and the transmission member (110) can rotate freely around its rotation axis.

59. The fastening device according to claim 2, characterized in that, The first magnetic component (150) is shaped like a circle, rectangle, rhombus, ellipse, triangle, pentagon, hexagon, or irregular shape; the second magnetic component (230) is shaped like a circle, rectangle, rhombus, ellipse, triangle, pentagon, hexagon, or irregular shape.

60. An article (20) having a fastening device, characterized in that, include: Item body(21); A strip (22) is connected to the article body (21); And the fastening device according to any one of claims 1 to 38, wherein the sliding seat (102) of the rotating assembly (100) is connected to one end of the strip (22) away from the article body (21).

61. The article (20) with a fastening device according to claim 60, characterized in that, One end of the strip (22) is connected to the article body (21), the other end of the strip (22) is connected to the sliding seat (102), and the article body (21) is connected to the base body (210).

62. The article (20) with a fastening device according to claim 60, characterized in that, The strip (22) includes: The first belt (22a) has one end connected to the article body (21) and the other end connected to the sliding seat (102). The second belt (22b) has one end connected to the article body (21) and the other end connected to the base body (210).

63. The article (20) with a fastening device according to claim 60, characterized in that, The items (20) include shoes, clothing, bags, helmets, belts, bras, hats, gloves, baby products, medical protective gear, and pet products.

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