Fastener and child safety seat

Abstract

The invention discloses a buckle. The buckle comprises a male buckle and a female buckle which can be inserted and matched with each other, the female buckle is connected with a first magnet, the male buckle is connected with a second magnet, the buckle further comprises a first button and a second button, the first button is arranged to operably prevent the second button from being actuated, and the second button is arranged to operably prevent the second button from being actuated. The second button is arranged to be capable of being actuated so that the male buckle and the female buckle can be unlocked. The buckle provided by the invention can be automatically clamped, and is simple to operate and good in safety.

Description

Technical Field

[0001] This application relates to the field of children's safety products, and particularly to a magnetic fastener. Background Art

[0002] Children's safety seats usually fix children in the seats by five-point seat belts. To prevent children's shoulders from slipping out of the shoulder straps of the seat belts, some children's safety seats are provided with chest buckles on the shoulder straps. The male buckle and the female buckle of the chest buckle are respectively fixed on two shoulder straps. After the fasteners of the five-point seat belt are buckled, the male buckle and the female buckle of the chest buckle are buckled together. In this way, children can be fixed in the children's safety seat more safely.

[0003] However, for the existing chest buckles, the operator needs to manually align the male buckle and the female buckle and then forcefully snap them together to fix the male buckle and the female buckle to each other, which is inconvenient to use. Moreover, the existing chest buckles are prone to misoperation or have complex operations during the unlocking operation. In addition, the existing fasteners may have problems of being insecure and unstable during buckling. Similar problems also exist in other fasteners of children's safety seats and other children's carriers (such as baby carriers, strollers, dining chairs, and rocking chairs). Summary of the Invention

[0004] One object of this application is to provide a fastener in which the male buckle and the female buckle can be automatically snapped together when they are aligned with each other.

[0005] One object of this application is to provide a fastener with simple operation and good safety.

[0006] One object of this application is to provide a fastener that is firmly and stably buckled and has low noise and vibration during the buckling process.

[0007] To achieve the above objects, on the one hand, this application provides a fastener, which includes a male buckle and a female buckle that can be inserted and mated with each other. The female buckle is connected with a first magnet, and the male buckle is connected with a second magnet. The fastener further includes a first button and a second button. The first button is arranged to operatively block the actuation of the second button, and the second button is arranged to be actuated to unlock the male buckle and the female buckle.

[0008] In one embodiment, the first magnet and the second magnet attract each other.

[0009] In one embodiment, the first button and the second button are slidably arranged on the female buckle.

[0010] In one embodiment, the first button and the second button are respectively arranged on opposite sides of the female buckle.

[0011] In one embodiment, the fastener further includes a blocking member that operably blocks actuation of the second button.

[0012] In one embodiment, the first button has a first inclined surface, and the blocking member has a second inclined surface that cooperates with the first inclined surface. Movement of the first button in a first direction causes the blocking member to move in a second direction through the cooperation of the first inclined surface and the second inclined surface.

[0013] In one embodiment, the second button has an abutting portion, and the blocking member abuts against the abutting portion to block actuation of the second button.

[0014] In one embodiment, the male fastener is inserted into and cooperates with the female fastener in a third direction.

[0015] In one embodiment, the first direction, the second direction, and the third direction are interleaved with each other.

[0016] In one embodiment, the second button is actuated in a fourth direction opposite to the first direction.

[0017] In one embodiment, a locking portion is provided on the male fastener, and a engaging member is provided on the female fastener. The engaging member engages with the locking portion to lock the male fastener and the female fastener.

[0018] In one embodiment, the second button is actuated to drive the engaging member to disengage from the locking portion.

[0019] In one embodiment, the engaging member moves in the fourth direction away from the locking portion, and the first magnet moves in the fourth direction away from the second magnet to separate the male fastener from the female fastener.

[0020] In one embodiment, the female fastener further includes a sliding seat. The engaging member is disposed on the sliding seat, and the sliding seat is connected to the second button. The second button is actuated to drive the sliding seat and the engaging member to move in the fourth direction, and the engaging member elastically deforms when abutting against the locking portion during movement in the fourth direction.

[0021] In one embodiment, the male fastener further includes a mating portion, and the locking portion is connected to the mating portion.

[0022] In one embodiment, a limiting rib is formed on the mating portion, and a limiting recess is formed on the female fastener. When the male fastener is inserted into and cooperates with the female fastener, the limiting rib cooperates with the limiting recess to define the position of the male fastener relative to the female fastener.

[0023] In one embodiment, the limiting rib includes a first rib portion and a second rib portion, the limiting recess includes a first recess that mates with the first rib portion and a second recess that mates with the second rib portion, the first rib portion extends in a second direction, and the second rib portion extends in a first direction.

[0024] In one embodiment, the mating portion has a surrounding hole and a connecting arm, and the locking portion is located within the surrounding hole and is connected to the mating portion by means of the connecting arm.

[0025] In one embodiment, the locking portion includes an engaging portion. When the male buckle and the female buckle are inserted and mated with each other, the actuating inclined surface on the engaging portion presses the engaging member to deform the engaging member.

[0026] In one embodiment, when the male buckle and the female buckle are latched, the locking portion moves in a third direction to press the engaging member to deform, so that the locking portion is latched with the engaging member. And when the male buckle and the female buckle are unlocked, the engaging member moves in a fourth direction to disengage from the latching of the locking portion and unlock, and the third direction and the fourth direction intersect with each other.

[0027] In one embodiment, the locking portion is formed as a cylinder, and the engaging portion surrounds a part of the outer periphery of the locking portion.

[0028] In one embodiment, the locking portion includes a docking surface, and the docking surface is at least partially surrounded by the engaging portion. When the male buckle and the female buckle are inserted and mated with each other, the docking surface is located between the first magnet and the second magnet.

[0029] In one embodiment, the docking surface forms a depression relative to the engaging portion, or the docking surface is flush with one end of the engaging portion facing the sliding seat.

[0030] In one embodiment, a limiting rib is formed on the mating portion, and a limiting protrusion is formed on the female buckle. When the male buckle and the female buckle are inserted and mated with each other, the limiting rib cooperates with the limiting protrusion to define the position of the male buckle relative to the female buckle.

[0031] In one embodiment, the locking portion houses the second magnet, and the sliding seat houses the first magnet. When the male buckle and the female buckle are inserted and mated with each other, the first magnet faces the second magnet.

[0032] In one embodiment, the first magnet is sealed within the sliding seat by means of a first cover that engages with the sliding seat, and the second magnet is sealed within the locking portion by means of a second cover that engages with the locking portion.

[0033] In one embodiment, the engaging member includes a first engaging piece and a second engaging piece, and the first engaging piece and the second engaging piece are arranged at an interval, so that the distance between the first engaging piece and the second engaging piece is smaller than the outer diameter of the engaging portion.

[0034] In one embodiment, the engaging member is formed by an iron sheet.

[0035] In one embodiment, a first restoring member is disposed between the first button and the second button, and the first restoring member applies a pushing force to push the first button and the second button away from each other.

[0036] In one embodiment, the female buckle includes a female buckle housing, and a second reset member is provided between the blocking member and the female buckle housing, and the second reset member applies a force to the blocking member to move toward a position that blocks the second button.

[0037] In one embodiment, the male buckle includes a first connecting hole, and the female buckle includes a second connecting hole, the first connecting hole and the second connecting hole extend laterally from the male buckle and the female buckle, respectively, and are used to connect a safety belt.

[0038] In one embodiment, the first connecting hole is arranged at the bottom of the male buckle, and the second connecting hole is arranged at the bottom of the female buckle, or the first connecting hole is arranged at the side wall of the male buckle, and the second connecting hole is arranged at the side wall of the female buckle.

[0039] On the other hand, the present application provides a child safety seat, wherein the child safety seat comprises the buckle as described above.

[0040] On the other hand, the present application provides a buckle, which includes a male buckle and a female buckle, the male buckle has a raised locking portion, and the female buckle has: a female buckle shell, having a docking hole for inserting the locking portion; a snap-fitting member, including a first snap-fitting member and a second snap-fitting member, the first snap-fitting member and the second snap-fitting member can be operably locked or unlocked with the locking portion inserted into the docking hole; wherein, the second snap-fitting member is unlocked along a first direction away from the locking portion, and the first snap-fitting member is unlocked by being stretched along a second direction to release the locking portion.

[0041] In one embodiment, the female buckle further comprises: a first button movably disposed on one side of the female buckle housing; a second button movably disposed on the other side of the female buckle housing; a blocking member preventing movement of the second button when the first button is not actuated and allowing movement of the second button when the first button is actuated; and a sliding seat moving synchronously with the second button, wherein the second button is actuated to drive the engaging member to unlock the locking portion through the sliding seat.

[0042] In one embodiment, the first engaging member is fixed on the female buckle housing, and the second engaging member is fixed on the sliding seat.

[0043] In one embodiment, the first engaging member includes a first engaging piece and a second engaging piece, the second engaging member includes a third engaging piece and a fourth engaging piece, the locking portion includes a engaging groove, and the first engaging piece, the second engaging piece, the third engaging piece and the fourth engaging piece are extended into the engaging groove to lock the engaging member and the locking portion.

[0044] In one embodiment, when the second button is actuated, a direction in which the first engaging piece and the second engaging piece are separated from the engaging slot intersects a direction in which the third engaging piece and the fourth engaging piece are separated from the engaging slot.

[0045] In one embodiment, the first engaging piece and the second engaging piece both have a driving block, the sliding seat has a first recess, one side of the first recess forms a driving inclined surface, and the sliding seat actuates the first engaging piece and the second engaging piece through the cooperation of the driving inclined surface and the driving block.

[0046] In one embodiment, at least one of the first locking piece, the second locking piece, the third locking piece, and the fourth locking piece is coated with plastic.

[0047] In one embodiment, the female buckle housing includes a female buckle lower cover and a female buckle upper cover, the female buckle lower cover has a first positioning block and a second positioning block, the first positioning block and the second positioning block are arranged at intervals along a first direction, and a portion of the first engaging member is located between the first positioning block and the second positioning block to be limited by the first positioning block and the second positioning block.

[0048] In one embodiment, the female buckle has a first magnet and the male buckle has a second magnet. When the male buckle and the female buckle are locked with each other, the first magnet and the second magnet are at least partially aligned with each other, and when the male buckle and the female buckle are unlocked from each other, the first magnet moves relative to the second magnet and is offset from each other, and the first magnet and the second magnet attract each other.

[0049] In one embodiment, the first magnet is disposed on the sliding seat.

[0050] In one embodiment, the first button has a pushing portion on one side along the second direction, the first button is actuated along the first direction so that the pushing portion pushes the blocking member to move along the second direction, the first direction intersects with the second direction, and the second button is actuated in a direction opposite to the first direction.

[0051] In one embodiment, a first stop portion is formed on one side of the pushing portion close to the female buckle housing along the first direction, and the female buckle housing prevents the first button from sliding out of the female buckle housing by abutting against the first stop portion; and / or one side of the second button along the second direction has an abutting portion, and the blocking member prevents the movement of the second button by abutting against the abutting portion. A second stop portion is formed on one side of the abutting portion close to the female buckle housing along the first direction, and the female buckle housing prevents the second button from sliding out of the female buckle housing by abutting against the second stop portion.

[0052] In one embodiment, the male buckle has a mating portion, and when the male buckle and the female buckle are locked to each other, the mating portion overlaps with the female buckle housing.

[0053] In one embodiment, the locking portion is provided on the mating portion, and there is a connecting recess between the locking portion and the mating portion. A connecting flange is provided on the female buckle housing. When the male buckle and the female buckle are locked to each other, the connecting recess cooperates with the connecting flange.

[0054] In one embodiment, the first direction is perpendicular to the second direction.

[0055] On the other hand, the present application provides a buckle, including a male buckle and a female buckle. The male buckle has a protruding locking portion, and the female buckle has: a female buckle housing having a docking hole for inserting the locking portion; a locking member including a second locking member, and the second locking member can operably lock or unlock with the locking portion inserted into the docking hole; wherein, the second locking member unlocks with the locking portion along the first direction and the second direction.

[0056] In one embodiment, the second locking member includes a third locking piece and a fourth locking piece, the locking portion includes a locking groove, and the third locking piece and the fourth locking piece lock the locking member with the locking portion by extending into the locking groove.

[0057] In one embodiment, the female buckle further has a second button, the second button is movably arranged on the female buckle housing, and the second button moves synchronously with the second locking member.

[0058] In one embodiment, the female buckle housing has a driving inclined groove, and a driving convex portion is formed on the second locking member, and the driving convex portion is located in the driving inclined groove.

[0059] In one embodiment, the female buckle housing has two driving inclined slots, each driving inclined slot having an inclined surface. A driving protrusion is formed on each of the third engaging piece and the fourth engaging piece. When the second engaging member moves away from the locking portion along the first direction, the inclined surfaces of the two driving inclined slots respectively drive the driving protrusions of the third engaging piece and the fourth engaging piece, so that the third engaging piece and the fourth engaging piece of the second engaging member are spread apart.

[0060] In one embodiment, the driving inclined slot has a triangular shape, and the driving protrusion is formed as a cylindrical protrusion.

[0061] In one embodiment, the second engaging member further includes a second transverse portion. One side of the third engaging piece and the fourth engaging piece is connected by the second transverse portion, and the driving protrusion is formed on the other side of the third engaging piece and the fourth engaging piece.

[0062] In one embodiment, the second engaging member moves away from the locking portion along the first direction and is spread apart along the second direction to unlock from the locking portion.

[0063] On the other hand, the present application provides a child safety seat, which includes the buckle as described above.

[0064] The buckle of the present application has at least the following beneficial technical effects:

[0065] 1. By fixedly arranging a first magnet on the male buckle and a second magnet on the female buckle, when the male buckle and the female buckle are engaged, as long as the engaging structures of the male buckle and the female buckle are aligned, the male buckle and the female buckle will automatically engage under the action of the two magnets, with simple operation and convenient use.

[0066] 2. The female buckle is also provided with a first button and a second button. Only after pressing the first button first can the second button be pressed, making the buckle safer, preventing accidental unlocking. At the same time, when unlocking, the user can press the first button and the second button with two fingers at the same time, which is convenient for exerting force and convenient to use.

[0067] 3. The female buckle has two engaging members, and these two engaging members engage with the locking portion from different directions, so that the engagement between the male buckle and the female buckle is firmer and more stable.

[0068] 4. The engaging pieces of the engaging member are coated with plastic, so that the contact between the engaging piece and the locking portion remains silent and reduces vibration. At the same time, it can avoid part wear caused by repeated friction between the engaging piece and the locking portion and increase the strength of the engaging piece. Description of the Drawings

[0069] The various objects, features, and advantages of the present invention will become more apparent by considering the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. The drawings are only illustrative diagrams of the present invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar components. Among them:

[0070] Figure 1 is a perspective view of the buckle of an embodiment of the present application;

[0071] Figure 2 is Figure 1 a perspective view of the buckle of the embodiment from another angle;

[0072] Figure 3 is Figure 1 a perspective view of the male buckle of the buckle of the embodiment;

[0073] Figure 4 is Figure 1 a perspective view of the buckle of the embodiment, where the male buckle and the female buckle are separated;

[0074] Figure 5 is Figure 1 a cross-sectional view of the buckle of the embodiment, where part A of the cross-sectional view is enlarged;

[0075] Figure 6 is Figure 1 a cross-sectional view of the buckle of the embodiment, where the male buckle and the female buckle are separated;

[0076] Figure 7 is Figure 1 a perspective view of the upper cover of the female buckle of the buckle of the embodiment;

[0077] Figure 8 is Figure 1 a perspective view of the buckle of the embodiment, where the upper cover of the female buckle is removed and the first button and the second button are not actuated;

[0078] Figure 9 is Figure 1 a perspective view of the buckle of the embodiment, where the upper cover of the female buckle is removed and the first button and the second button have been actuated;

[0079] Figure 10 is Figure 1 a perspective exploded view of the female buckle of the buckle of the embodiment;

[0080] Figure 11 is Figure 1 a perspective view of the female buckle of the buckle of the embodiment, where the lower cover of the female buckle is removed;

[0081] Figure 12 is Figure 1 a bottom cross-sectional view of the buckle of the embodiment, where the first button and the second button are not actuated;

[0082] Figure 13 is Figure 1 A bottom-up sectional view of the buckle of the embodiment, in which the first button and the second button have been actuated;

[0083] Figure 14 A perspective view of the buckle of an embodiment of the present application;

[0084] Figure 15 A perspective view of the engaging member of the buckle of an embodiment of the present application;

[0085] Figure 16 A sectional view of the buckle of an embodiment of the present application, in which part B of the sectional view is enlarged;

[0086] Figure 17 A perspective view of the male buckle of the buckle of an embodiment of the present application;

[0087] Figure 18 is Figure 17 A perspective view of the female buckle of the buckle of the embodiment;

[0088] Figure 19A A perspective view of the buckle of an embodiment of the present application;

[0089] Figure 19B is Figure 19A A side view of the buckle of the embodiment;

[0090] Figure 20 is Figure 19A A perspective view of the buckle of the embodiment from another angle;

[0091] Figure 21A is Figure 19A A plan view of the female buckle of the buckle of the embodiment;

[0092] Figure 21B is Figure 19A A side view of the female buckle of the buckle of the embodiment;

[0093] Figure 22 is Figure 19A A perspective view of the male buckle of the buckle of the embodiment;

[0094] Figure 23 is Figure 19A A sectional view of the buckle of the embodiment and its partial enlarged view;

[0095] Figure 24 is Figure 19A A perspective view of the buckle of the embodiment and its partial enlarged view, in which the first button and the second button are not pressed and some components are removed to show the internal structure;

[0096] Figure 25 isFigure 19A Stereogram of the fastener of the embodiment and its partial enlarged view, where the first button is pressed while the second button is not pressed and some components are removed to show the internal structure;

[0097] Figure 26 is Figure 19B Cross-sectional view taken along line A-A;

[0098] Figure 27 is Figure 19A Stereogram of the lower cover of the female fastener of the embodiment;

[0099] Figure 28 is Figure 19B Cross-sectional view taken along line B-B, where both the first button and the second button are pressed;

[0100] Figure 29 is Figure 19A Stereogram of the engaging member of the fastener of the embodiment;

[0101] Figure 30 is Figure 19A Another stereogram of the engaging member of the fastener of the embodiment;

[0102] Figure 31 is Figure 21B Cross-sectional view taken along line C-C, where neither the first button nor the second button is actuated;

[0103] Figure 32A is Figure 19A Stereogram of the sliding seat of the fastener of the embodiment;

[0104] Figure 32B is Figure 19A Another stereogram of the sliding seat of the fastener of the embodiment;

[0105] Figure 33 is Figure 19A Stereogram of the female fastener of the embodiment, where neither the first button nor the second button is actuated and some components are removed to show the internal structure;

[0106] Figure 34 is Figure 19A Cross-sectional view of the female fastener of the embodiment;

[0107] Figure 35 is Figure 19A Stereogram of the upper cover of the female fastener of the embodiment;

[0108] Figure 36 is Figure 19A Stereogram of the female fastener of the embodiment, where some components are removed to show the internal structure;

[0109] Figure 37Is a perspective view of the female buckle of the fastener of an embodiment of the present application, where some components are removed to show the internal structure;

[0110] Figure 38 Is Figure 37 Perspective view of the lower cover of the female buckle of the fastener of the embodiment;

[0111] Figure 39 Is Figure 37 Cross-sectional view of the female buckle of the fastener of the embodiment; and

[0112] Figure 40 Is Figure 37 Perspective view of the engaging member of the fastener of the embodiment.

[0113] List of reference numerals:

[0114] 1 Fastener

[0115] 10 Male buckle

[0116] 11 Male buckle housing

[0117] 111 First connection hole

[0118] 12 Locking portion

[0119] 121 Engaging portion

[0120] 1211 Actuating inclined surface

[0121] 122 Docking surface

[0122] 123 Second magnet receiving portion

[0123] 124 Body portion

[0124] 125 Second cover

[0125] 127 Engaging groove

[0126] 13 Fitting portion

[0127] 131 Limiting rib

[0128] 1311 First rib portion

[0129] 1312 Second rib portion

[0130] 132 Surrounding hole

[0131] 133 Connecting arm

[0132] 14 Reinforcing portion

[0133] 20 Female buckle

[0134] 21 Female buckle housing

[0135] 211 Second connection hole

[0136] 212 Limit recess

[0137] 2121 First recess

[0138] 2122 Second recess

[0139] 213 Docking hole

[0140] 214 Female buckle lower cover

[0141] 2141 Positioning part

[0142] 215 Female buckle upper cover

[0143] 216 Limit protrusion

[0144] 22 First button

[0145] 221 First inclined surface

[0146] 222 First stop part

[0147] 23 Second button

[0148] 231 Contact part

[0149] 24 Blocking part

[0150] 241 Second inclined surface

[0151] 243 Limit hole

[0152] 245 Receiving groove

[0153] 25 Engaging part

[0154] 251 First engaging piece

[0155] 252 Second engaging piece

[0156] 253 Horizontal part

[0157] 254 Limit piece

[0158] 26 Sliding seat

[0159] 261 First magnet receiving part

[0160] 262 Engaging cavity

[0161] 263 First cover

[0162] 2631 Engaging protrusion

[0163] 30 First magnet

[0164] 40 Second magnet

[0165] 50 First reset part

[0166] 60 Second reset part

[0167] 1S buckle

[0168] 10S male buckle

[0169] 11S male buckle housing

[0170] 111S first connection hole

[0171] 12S lock matching part

[0172] 121S actuating inclined plane

[0173] 122S engaging groove

[0174] 123S second magnet accommodating part

[0175] 13S mating part

[0176] 133S connection recess

[0177] 14S second cover

[0178] 20S female buckle

[0179] 21S female buckle housing

[0180] 211S second connection hole

[0181] 213S docking hole

[0182] 214S female buckle lower cover

[0183] 2141S positioning part

[0184] 2142S connection hole

[0185] 2143S first positioning block

[0186] 2144S second positioning block

[0187] 2145S driving slotted groove

[0188] 2146S inclined plane

[0189] 215S female buckle upper cover

[0190] 2151S connection finger

[0191] 2152S limiting rib

[0192] 2153S mounting post

[0193] 2154S reinforcing rib

[0194] 216S connection flange

[0195] 22S first button

[0196] 220S Thrust Section

[0197] 221S First Inclined Plane

[0198] 222S First Stop Section

[0199] 23S Second Button

[0200] 231S Contact Section

[0201] 232S Second Stop Section

[0202] 24S Blocking Part

[0203] 241S Second Inclined Plane

[0204] 243S Positioning Hole

[0205] 2431S Notch

[0206] 245S Receiving Groove

[0207] 25S Engaging Part

[0208] 251S First Engaging Part

[0209] 2511S First Engaging Piece

[0210] 2512S Second Engaging Piece

[0211] 2513S First Horizontal Part

[0212] 2514S Driving Block

[0213] 252S Second Engaging Part

[0214] 2521S Third Engaging Piece

[0215] 2522S Fourth Engaging Piece

[0216] 2523S Second Horizontal Part

[0217] 2524S Driving Block

[0218] 2525S Driving Protrusion

[0219] 2526S Hook Part

[0220] 26S Sliding Seat

[0221] 261S First Magnet Accommodating Part

[0222] 264S First Recess

[0223] 2641S Driving Inclined Plane

[0224] 265S Second Recess

[0225] 266S Protruding Part

[0226] 267S spring positioning part

[0227] 268S hook avoiding groove

[0228] 30S first magnet

[0229] 40S second magnet

[0230] 50S first reset member

[0231] 60S second reset member Detailed implementation manners

[0232] In order to more clearly illustrate the overall concept of the present application, the following will be further described in detail by way of examples in combination with the accompanying drawings of the specification.

[0233] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited by the specific embodiments disclosed below.

[0234] In addition, in the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.

[0235] In the present application, unless otherwise clearly specified and defined, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be directly connected, or indirectly connected through an intermediate medium, and may be the communication inside two components or the interaction relationship between two components. However, indicating a direct connection means that there is no connection relationship constructed through an excessive structure between the two connected main bodies, and only a connection structure is used to connect and form a whole. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0236] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0237] The fastener 1 of this application can be used for children's safety products, such as children's safety seats, children's safety carriers, baby strollers, and so on.

[0238] An embodiment of this application will be introduced below.

[0239] See Figure 1 and Figure 2 , the fastener 1 may include a male fastener 10 and a female fastener 20 that can be inserted and mated with each other. The male fastener 10 and the female fastener 20 can be arranged opposite to each other along the Y direction (when not otherwise specified, the Y direction includes the positive Y direction and the negative Y direction, where the "positive Y direction" refers to the Y direction as shown in Figure 1 , and the "negative Y direction" refers to the direction opposite to the Y direction as shown in Figure 1 , and the same applies to the X direction and the Z direction). The female fastener 20 may include a first button 22 and a second button 23. In this application, the positive X direction may be referred to as the first direction, the positive Y direction may be referred to as the second direction, the positive Z direction may be referred to as the third direction, and the negative X direction may be referred to as the fourth direction, but this application is not limited thereto. The X direction, the Y direction, and the Z direction may be staggered with each other in pairs. Preferably, the X direction, the Y direction, and the Z direction may be perpendicular to each other in pairs.

[0240] The first button 22 and the second button 23 may be respectively located on opposite sides of the fastener 1 along the X direction. The first button 22 can be pressed along the positive X direction. The second button 23 can be pressed along the negative X direction. On both sides of the male fastener 10 along the X direction, first connection holes 111 may be respectively formed. On both sides of the female fastener 20 along the X direction, second connection holes 211 may be respectively formed. That is to say, the first connection holes 111 and the second connection holes 211 may extend laterally from the male fastener 10 and the female fastener 20 respectively. The first connection holes 111 and the second connection holes 211 can be used to connect, for example, the shoulder straps or seat belts (not shown) of a children's safety seat. In this embodiment, the first connection holes 111 may be provided at the bottom of the male fastener 10, and the second connection holes 211 may be provided at the bottom of the female fastener 20.

[0241] In another embodiment, the male buckle 10 may include a first button 22 and a second button 23.

[0242] In another embodiment, the male buckle 10 may be formed with other numbers of first connection holes 111, such as one first connection hole 111, which may be provided at the end of the male buckle 10 along the Y direction.

[0243] In another embodiment, the female buckle 20 may be formed with other numbers of second connection holes 211, such as one second connection hole 211, which may be provided at the end of the female buckle 20 along the Y direction.

[0244] Referring to Figure 3 , the male buckle 10 may have a male buckle housing 11. The male buckle housing 11 may form at least a part of the appearance of the male buckle 10. The male buckle 10 may further include a mating portion 13. The mating portion 13 may protrude from the male buckle housing 11 along the Y direction. The mating portion 13 may be formed in a generally flat plate shape, but the present application is not limited thereto. The male buckle 10 may further include a locking portion 12. The locking portion 12 may be connected to the mating portion 13. A limiting rib 131 may be formed on the mating portion 13. The limiting rib 131 may be formed at the edge of the mating portion 13. The limiting rib 131 may include a first rib portion 1311 and a second rib portion 1312. The first rib portion 1311 may extend along the Y direction. The second rib portion 1312 may extend along the X direction. The first rib portion 1311 and the second rib portion 1312 may be integrally formed and perpendicular to each other. The mating portion 13 may have a surrounding hole 132 and a connecting arm 133. The locking portion 12 may be located within the surrounding hole 132 and connected to the mating portion 13 by means of the connecting arm 133. The surrounding hole 132 may surround most of the outer periphery of the mating portion 13. The surrounding hole 132 may be formed as a whole or formed into multiple independent parts. The mating portion 13 may have one or more connecting arms 133, and the present application does not limit the number of connecting arms 133. A reinforcing portion 14 may be formed at the position where the mating portion 13 is connected to the male buckle housing 11, so as to strengthen the connection between the mating portion 13 and the male buckle housing 11 and prevent the mating portion 13 from being damaged by external forces. Reinforcing portions 14 may be formed on both sides of the position where the mating portion 13 is connected to the male buckle housing 11.

[0245] Referring to Figure 4 , the male buckle 10 and the female buckle 20 may be buckled by approaching each other along the Z direction. In another embodiment, the male buckle 10 and the female buckle 20 may be buckled by approaching each other along the Y direction. The female buckle 20 may include a engaging member 25. The engaging member 25 may be an iron sheet, but the present application is not limited thereto. The engaging member 25 may be engaged with the locking portion 12 to achieve the locking of the male buckle 10 and the female buckle 20. The female buckle 20 may include a limiting recess 212 (refer to Figure 4 and Figure 5)。The limiting recess 212 may be formed on the surface facing the male fastener 10. When the male fastener 10 and the female fastener 20 are inserted and mated, the limiting rib 131 may cooperate with the limiting recess 212 to define the position of the male fastener 10 relative to the female fastener 20. That is to say, the cooperation between the limiting rib 131 and the limiting recess 212 may prevent the male fastener 10 and the female fastener 20 from moving relative to each other in the X direction and the Y direction. The limiting recess 212 may include a first recess 2121 that cooperates with the first rib portion 1311 and a second recess 2122 that cooperates with the second rib portion 1312.

[0246] See Figures 5 to 6 , the locking portion 12 may include an engaging portion 121, a docking surface 122, and a body portion 124. The body portion 124 may be formed in a cylindrical shape, and a second magnet accommodating portion 123 may be formed inside thereof to accommodate the second magnet 40. The lower part (negative Z direction) of the second magnet accommodating portion 123 is open to facilitate placing the second magnet 40 therein. The second magnet 40 may be connected to the male fastener 10 by means of an adhesive, or engaged with the male fastener 10, or connected to the male fastener 10 by means of a positioning member. The engaging portion 121 is formed on the outer periphery of the upper part of the body portion 124. The engaging portion 121 may be formed to surround all or a part of the outer periphery of the body portion 124. The outer periphery of the engaging portion 121 is larger than the outer periphery of the body portion 124, so that the lower surface (facing the negative Z direction) of the engaging portion 121 can block the movement of the engaging member 25 in the positive Z direction, thereby realizing the locking between the male fastener 10 and the female fastener 20. The uppermost end of the engaging portion 121 constitutes the uppermost end of the locking portion 12. An actuating inclined surface 1211 may be formed on the engaging portion 121. In some examples, the engaging portion 121 may be formed in a tapered shape that gradually narrows from bottom to top (in the positive Z direction), and one inclined surface of the tapered shape forms the actuating inclined surface 1211, but it is not limited thereto. The docking surface 122 is formed inside the engaging portion 121 and is recessed relative to the engaging portion 121. The docking surface 122 may be at least partially surrounded by the engaging portion 121. When the male fastener 10 and the female fastener 20 are inserted and mated, the docking surface 122 is located between the first magnet 30 and the second magnet 40. The docking surface 122 may be formed as a flat surface.

[0247] The engaging member 25 may include a first engaging piece 251 and a second engaging piece 252. The first engaging piece 251 and the second engaging piece 252 may be arranged at intervals such that the distance between the first engaging piece 251 and the second engaging piece 252 is less than the outer diameter of the engaging portion 121. When the male fastener 10 and the female fastener 20 are inserted and mated, the actuating inclined surface 1211 may squeeze the first engaging piece 251 and the second engaging piece 252 of the engaging member 25 to deform the engaging member 25, so that the distance between the first engaging piece 251 and the second engaging piece 252 is greater than or equal to the outer diameter of the engaging portion 121, thereby allowing the locking portion 12 to pass through the gap between the first engaging piece 251 and the second engaging piece 252 to achieve locking.

[0248] See Figure 5 andFigure 10 , the female buckle 20 may include a sliding seat 26. The engaging member 25 may be disposed on the sliding seat 26 and fixedly connected to the sliding seat 26. Specifically, referring to Figure 11 , the engaging member 25 may include a first engaging piece 251, a second engaging piece 252, and a transverse portion 253 connected between the two. At least a part of the transverse portion 253 may be bent relative to the first engaging piece 251 and the second engaging piece 252. The transverse portion 253 may be engaged and fixed with the sliding seat 26 so that the engaging member 25 can slide with the sliding seat 26, but the present application does not limit the connection manner between the engaging member 25 and the sliding seat 26. The engaging member 25 can be deformed or opened when being stressed during the sliding process. Specifically, the transverse portion 253 can be bent and deformed during the sliding process, and the first engaging piece 251 and the second engaging piece 252 can be opened when being stressed during the sliding process. The engaging member 25 may further include a limiting piece 254. The limiting pieces 254 may be respectively formed on the outer sides of the first engaging piece 251 and the second engaging piece 252 to limit the minimum gap between the first engaging piece 251 and the second engaging piece 252. The sliding seat 26 is connected to the second button 23. A first magnet receiving portion 261 and an engaging cavity 262 may be formed on the sliding seat 26. The first magnet receiving portion 261 may receive the first magnet 30. The upper part of the first magnet receiving portion 261 is open to facilitate putting the first magnet 30 therein. The first cover 263 may be used to seal and position the first magnet 30 in the first magnet receiving portion 261. The first cover 263 may be engaged in the first magnet receiving portion 261 of the sliding seat 26. The first cover 263 may be made of plastic. An engaging protrusion 2631 may be formed on the outer periphery of the first cover 263. The engaging protrusion 2631 may be formed as an annular shape surrounding the first cover 263, or may be formed as a plurality of separated parts surrounding the first cover 263. The first cover 263 may be fixedly connected by cooperating the engaging protrusion 2631 with the corresponding recess on the female buckle 20. The engaging cavity 262 may be formed on the outer periphery of the lower part of the first magnet receiving portion 261. The engaging cavity 262 may receive the engaging portion 121 so that the radially inner part of the engaging cavity 262 of the sliding seat 26 may abut against the docking surface 122 of the mating locking portion 12, so that the engaging portion 121 entering the engaging cavity 262 may surround a part of the first magnet 30. The first magnet 30 and the second magnet 40 face each other and attract each other so that the male buckle 10 and the female buckle 20 can be automatically engaged and connected with each other under the attraction between the first magnet 30 and the second magnet 40. In other words, the attraction between the first magnet 30 and the second magnet 40 is large enough to cause the actuating inclined surface 1211 of the mating locking portion 12 to squeeze the engaging member 25 to deform. In another embodiment, the first magnet 30 and the second magnet 40 may repel each other.

[0249] Referring to Figure 5 and Figure 6, the female buckle 20 may include a female buckle housing 21. The female buckle housing 21 may form at least a part of the appearance of the female buckle 20. The female buckle housing 21 may include a female buckle upper cover 215 and a female buckle lower cover 214 (see Figure 10 ). The female buckle upper cover 215 may be fixedly connected to the female buckle lower cover 214 by screws, but the present application is not limited thereto.

[0250] See Figure 10 , the female buckle 20 may further include a blocking member 24. The blocking member 24 can operably block the second button 23 from being actuated. The second button 23 may have an abutting portion 231. When the buckle 1 is in the locked state, the abutting portion 231 of the second button 23 abuts against the blocking member 24 to block the second button 23 from being operated. In some embodiments not shown, the blocking member 24 may also block with the sliding seat 26 to block the second button 23 from being operated. In some embodiments, the first button 22 may have a first inclined surface 221. The blocking member 24 may have a second inclined surface 241. The second inclined surface 241 is used to cooperate with the first inclined surface 221 to cause the blocking member 24 to move in the Y direction. The female buckle lower cover 214 may have a docking hole 213, and the docking hole 213 may allow the locking portion 12 to be inserted therein.

[0251] See Figures 8 to 10 , the first button 22 is arranged to operably block the second button 23 from being actuated. For example, the first button 22 is arranged to prevent the second button 23 from being actuated when not actuated. The second button 23 is arranged to be actuated to unlock the male buckle 10 from the female buckle 20. The first button 22, the second button 23, the blocking member 24 and the sliding seat 26 are all slidably arranged on the female buckle housing 21. The first button 22 and the second button 23 can slide along the X direction. The blocking member 24 can slide along the Y direction.

[0252] When the first button 22 is actuated in the positive X direction, the first inclined surface 221 may abut against the second inclined surface 241 of the blocking member 24, thereby pushing the blocking member 24 to move in the Y direction and disengaging from the abutment against the abutting portion 231, and further releasing the blocking of the second button 23. In some embodiments, specifically, the first inclined surface 221 may be formed on the side of the first button 22 close to the blocking member 24. For example, on one side of the first button 22 in the Y direction. In some embodiments, a first reset member 50 may be arranged between the first button 22 and the second button 23. The first reset member 50 applies a pushing force to the first button 22 and the second button 23 to move away from each other. Specifically, as Figure 8 and Figure 11In the illustrated embodiment, one end of the first reset member 50 can abut against the first button 22, and the other end of the first reset member 50 can abut against the sliding seat 26. Since the second button 23 and the sliding seat 26 slide together, therefore, the first reset member 50 abutting against the sliding seat 26 can also cause the sliding seat to drive the second button 23 to reset. The first reset member 50 can apply a reset force to the first button 22 that tends to return the first button 22 to the unactuated initial state. In some embodiments, the first button 22 can have a first stop portion 222. The first stop portion 222 can be formed on one side of the first button 22, for example, one side of the first button 22 along the Y direction. The first stop portion 222 can abut against the female buckle housing 21 to limit the first button 22, thereby preventing the first button 22 from sliding outside the female buckle housing 21 and separating from the female buckle housing 21.

[0253] In some embodiments, the female buckle lower cover 214 can have a positioning member 2141, and the blocking member 24 can have a limiting hole 243 (see Figures 8 to 10 ). The positioning member 2141 can be inserted into the limiting hole 243 of the blocking member 24 to limit the sliding range of the blocking member 24. In some embodiments, a second reset member 60 can be provided between the blocking member 24 and the female buckle housing 21. The second reset member 60 can apply a force to the blocking member 24 to block the movement of the second button 23 in the position. Specifically, in some embodiments, the blocking member 24 can have a receiving groove 245, and the second reset member 60 can be disposed between the female buckle lower cover 214 and the receiving groove 245. An abutting portion 231 can be formed on the side of the second button 23 close to the blocking member 24, for example, one side of the second button 23 along the Y direction. When the blocking member 24 is not actuated by the first button 22, the blocking member 24 abuts against the abutting portion 231 to prevent the second button 23 from being actuated in the negative X direction. The second reset member 60 applies a reset force to the blocking member 24 to tend to return the blocking member 24 to the initial position where it is not actuated by the first button 22. Optionally, a structure for guiding the sliding of the blocking member 24 can be provided on the female buckle lower cover 214.

[0254] The second button 23 can be actuated to drive the sliding seat 26 and the engaging member 25 to move in the negative X direction. See Figures 11 to 13 , the first engaging piece 251 and the second engaging piece 252 of the engaging member 25 abut against the mating locking portion 12 and elastically deform during the movement. Specifically, the shape of the gap between the first engaging piece 251 and the second engaging piece 252 corresponds to the shape of the body portion 124 of the mating locking portion 12. When the second button 23 drives the sliding seat 26 and the engaging member 25 to move in the negative X direction, the distance between one ends of the first engaging piece 251 and the second engaging piece 252 in the positive X direction is smaller than the diameter of the body portion 124, so that the first engaging piece 251 and the second engaging piece 252 are squeezed by the body portion 124 and opened.

[0255] The operation of the buckle 1 will be described below.

[0256] When the male buckle 10 and the female buckle 20 are buckled with each other, the male buckle 10 and the female buckle 20 are brought closer to each other in the Z direction at the positions shown as follows. The mating locking portion 12 enters the female buckle housing 21 through the docking hole 213. Then, the first magnet 30 and the second magnet 40 attract each other to bring the male buckle 10 and the female buckle 20 closer. At this time, referring to Figure 6 Figure [not provided], the actuating inclined surface 1211 of the engaging portion 121 radially outwardly pushes the first engaging piece 251 and the second engaging piece 252 to elastically deform the engaging member 25. After the engaging portion 121 passes through the engaging member 25, it enters the engaging cavity 262. Then, the first engaging piece 251 and the second engaging piece 252 return to the state where the engaging member 25 is not deformed. The first engaging piece 251 and the second engaging piece 252 that return to the state where the engaging member 25 is not deformed are located below the engaging portion 121, thereby locking the engaging portion 121 in the engaging cavity 262. As Figure 5 shown in Figure [not provided], when the buckle 1 is in the locked state, the blocking member 24 abuts against the abutting portion 231 of the second button 23, so the second button 24 cannot move and the buckle 1 cannot be unlocked. Figure 8

[0257] When unlocking is required, first press the first button 22 in the X direction. The first inclined surface 221 of the first button 22 cooperates with the second inclined surface 241 of the blocking member 24 to push the blocking member 24 in the Y direction, so that it disengages from the abutting portion 231 of the second button 23. Then, push the second button 23 in the negative X direction to unlock the buckle 1. When unlocking the buckle 1, the movement of the second button 23 in the negative X direction drives the sliding seat 26 and the engaging member 25 to move. The main body portion 124 of the mating locking portion 12 pushes against the first engaging piece 251 and the second engaging piece 252 to open the first engaging piece 251 and the second engaging piece 252, and makes the engaging member 25 misaligned with the mating locking portion 12 in the Z direction, and the engaging piece 251 disengages from the engagement with the mating locking portion 12. In this way, the engaging member 25 no longer prevents the engaging portion 121 from moving in the negative Z direction. At this time, the first magnet 30 is also not aligned with the second magnet 40, so that the attractive force between the first magnet 30 and the second magnet 40 is weakened. That is to say, the second magnet 40 can move away from the first magnet 30 along with the sliding seat 26, so that the attractive force between the first magnet 30 and the second magnet 40 is weakened. Finally, the male buckle 10 and the female buckle 20 are separated from each other in the Z direction.

[0258] During locking, the engaging portion 121 of the mating locking portion 12 approaches the engaging member 25 along the positive Z direction, and pushes against the first engaging piece 251 and the second engaging piece 252 to open them to achieve locking. During unlocking, the second button 23 drives the engaging member 25 to move in the negative X direction and away from the mating locking portion 12. It can be understood that during unlocking, the first button 22 and the second button 23 can be pressed simultaneously to achieve unlocking.

[0259] An embodiment of the present application will be further introduced below. The parts that are the same as those in the foregoing embodiment will be omitted to avoid repetition.

[0260] Refer to Figure 14 , in this embodiment, the first connection hole 111 can be provided on the side wall of the male buckle 10, and the second connection hole 211 can be provided on the side wall of the female buckle 20.

[0261] Refer to Figure 16 , the locking part 12 can include an engaging part 121, a docking surface 122 and a body part 124. The body part 124 can be formed in a cylindrical shape, and a second magnet accommodating part 123 can be formed inside it to accommodate the second magnet 40. The lower part (negative Z direction) of the second magnet accommodating part 123 is open to facilitate putting the second magnet 40 into it. The second magnet 40 can be sealed in the locking part 12 by means of a second cover 125 that engages with the locking part 12. The second cover 125 can be made of plastic and is fixedly connected to the male buckle 10 by means of a concave-convex fit.

[0262] A limiting rib 131 can be formed on the mating part 13 of the male buckle 10. A limiting protrusion 216 can be formed on the female buckle 20. When the male buckle 10 and the female buckle 20 are inserted and mated, the limiting rib 131 and the limiting protrusion 216 cooperate to limit the position of the male buckle 10 relative to the female buckle 20. That is to say, the cooperation of the limiting rib 131 and the limiting protrusion 216 can prevent the male buckle 10 and the female buckle 20 from moving relative to each other in the X direction and the Y direction.

[0263] A clamping groove 127 can be formed on the body part 124. The clamping groove 127 surrounds the body part 124 and is used to limit the first clamping piece 251 and the second clamping piece 252. The docking surface 122 is flush with one end of the engaging part 121 facing the sliding seat 26.

[0264] The operation of the buckle 1 will be described below.

[0265] When the male buckle 10 and the female buckle 20 are buckled to each other, the male buckle 10 and the female buckle 20 are moved closer to each other along the Z direction. The locking part 12 enters the female buckle housing 21 through the docking hole 213. The first magnet 30 and the second magnet 40 attract each other to make the male buckle 10 and the female buckle 20 move closer. At this time, the actuating inclined surface 1211 of the engaging part 121 radially pushes the first clamping piece 251 and the second clamping piece 252 outward. After the engaging part 121 passes through the engaging piece 25, it enters the engaging cavity 262. Then, the first clamping piece 251 and the second clamping piece 252 return to the undeformed state of the engaging piece. The restored first clamping piece 251 and second clamping piece 252 are engaged with the clamping groove 127 (as Figure 16As shown in the figure, the engaging portion 121 is thus locked within the engaging cavity 262. When the buckle 1 is in the locked state, the blocking member 24 abuts against the abutting portion 231 of the second button 23, so the second button 23 cannot move and the buckle 1 cannot be unlocked.

[0266] When unlocking is required, first press the first button 22 in the X direction. The first inclined surface 221 of the first button 22 cooperates with the second inclined surface 241 of the blocking member 24 to push the blocking member 24 in the Y direction, so that it disengages from the abutting portion 231 of the second button 23. Then, push the second button 23 in the negative X direction to unlock the buckle 1. When unlocking the buckle 1, the movement of the second button 23 in the negative X direction drives the sliding seat 26 and the engaging member 25 to move. The main body portion 124 of the locking portion 12 pushes against the first engaging piece 251 and the second engaging piece 252 to open the first engaging piece 251 and the second engaging piece 252, and makes the engaging member 25 misaligned with the locking portion 12 in the Z direction. In this way, the engaging member 25 disengages from the engaging groove 127 and no longer prevents the engaging portion 121 from moving in the negative Z direction. At this time, the first magnet 30 is also misaligned with the second magnet 40, so that the attractive force between the first magnet 30 and the second magnet 40 is weakened. Finally, the male buckle 10 and the female buckle 20 are separated from each other in the Z direction.

[0267] Generally speaking, the buckle 1 of the present application may include a male buckle 10 and a female buckle 20. The male buckle 10 and the female buckle 20 can be detachably connected or separated. A first magnet 30 is further provided on the female buckle 20, and a second magnet 40 is provided on the male buckle 10. The two magnets have opposite magnetic poles. When the male buckle 10 and the female buckle 20 are buckled, there is no need for manual buckling. Just align the male buckle 10 and the female buckle 20, and the two will be buckled under the mutual attraction of the magnets. A first button 22, a second button 23 and a blocking member 24 are further provided on the female buckle 20. The second button 23 is used to unlock the buckle 1. Under normal conditions, the blocking member 24 obstructs the movement of the second button 23. Only by first pushing the first button 22 to drive the blocking member 24 to disengage from the abutment of the second button 23 can the buckle 1 be unlocked. It can be understood that when unlocking, the first button 22 and the second button 23 can be pressed simultaneously to achieve unlocking, thereby shortening the time required for unlocking.

[0268] As Figure 17 shown, in some embodiments, the locking portion 12 may also be a boss provided on the mating portion 13. That is to say, there may be no surrounding hole 132 and connecting arm 133 on the mating portion 13. An engaging groove 127 may be formed on the locking portion 12. The mating portion 13 may not have the limiting rib 131. Correspondingly, as Figure 18As shown, a limiting recess 212 can be formed on the female buckle 20, and the limiting recess 212 can surround the outer periphery of the mating portion 13. That is, the limiting recess 212 surrounds the outer periphery of the mating portion 13 in the positive X direction, negative X direction, and Y direction. It can be understood that in this embodiment, the male buckle 10 and the female buckle 20 can be fastened to each other by approaching each other along the Z direction or along the Y direction.

[0269] As Figure 15 shown, in some embodiments, the surface of the engaging member 25 can be coated with plastic to avoid wear of parts caused by repeated friction between the engaging member 25 and the engaging portion 121 during engagement and to increase the strength of the engaging member 25.

[0270] The buckle 1S of an embodiment of the present application can be used for children's safety products, such as children's safety seats, children's safety carriers, baby strollers, and the like.

[0271] Another embodiment of the present application will be described below.

[0272] See Figures 19A to 20 , the buckle 1S can include a male buckle 10S and a female buckle 20S that can be inserted and mated with each other. The male buckle 10S and the female buckle 20S can be arranged opposite to each other along the Y direction. The female buckle 20S can include a first button 22S and a second button 23S. The first button 22S and the second button 23S can be partially exposed to the outside of the female buckle 20S. The first button 22S and the second button 23S can be arranged on both sides of the female buckle 20S along the X direction. The first button 22S and the second button 23S can be opposite to each other. The male buckle 10S can include a first connection hole 111S, and the first connection hole 111S can be used to connect to a belt (not shown). In some embodiments, the first connection hole 111S can be located below the male buckle 10S. The female buckle 20S can include a second connection hole 211S, and the second connection hole 211S can be used to connect to another belt (not shown). In some embodiments, the second connection hole 211S can be located below the female buckle 20S. In some embodiments, the male buckle 10S can have the first connection hole 111S on both sides along the X direction. The female buckle 20S can have the second connection hole 211S on both sides along the X direction.

[0273] See Figure 21A and Figure 21B, the female buckle 20S may have a female buckle housing 21S. The female buckle housing 21S forms the appearance of the female buckle 20S and has a certain accommodation space inside. The first button 22S and the second button 23S can be pressed into the interior of the female buckle housing 21S along the X direction. The bottom of the female buckle housing 21S may have a docking hole 213S leading to the accommodation space of the female buckle housing 21S. The docking hole 213S may allow the locking portion 12S (specifically, along the Z direction) to be inserted therein. The docking hole 213S may be formed as a circle, but the present application is not limited thereto. The female buckle 20S may have a engaging member 25S. The engaging member 25S may be a metal sheet, but the present application is not limited thereto. The engaging member 25S may engage with the locking portion 12S to achieve the locking of the male buckle 10S and the female buckle 20S. That is, the engaging member 25S can operably lock or unlock with the locking portion 12S inserted into the docking hole 213S. In some embodiments, a connecting flange 216S may be provided on the female buckle housing 21S. The connecting flange 216S may be disposed on the lower surface of the female buckle housing 21S (the surface where the docking hole 213S is located) and protrude along the Z direction from the lower surface of the female buckle housing 21S. The connecting flange 216S may surround the docking hole 213S for one circle or a part thereof.

[0274] See Figure 22 , in one embodiment, the male buckle 10S may include a male buckle housing 11S and a mating portion 13S. The mating portion 13S may extend from the male buckle housing 11S along the Y direction. The thickness of the mating portion 13S (the dimension along the Z direction) may be smaller than the thickness of the male buckle housing 11S. The mating portion 13S may be formed in a generally flat plate shape, and the bottom of the mating portion 13S may be flush with the bottom of the male buckle housing 11S, but the present application is not limited thereto. A locking portion 12S may be provided on the mating portion 13S. The locking portion 12S may be connected to the mating portion 13S via a connecting recess 133S. The connecting recess 133S may surround the locking portion 12S for one circle to form an annular shape, but the present application is not limited thereto. When the male buckle 10S and the female buckle 20S are locked to each other, the connecting recess 133S may cooperate with the connecting flange 216S. This can increase the mating strength and stability between the male buckle 10S and the female buckle 20S. The locking portion 12S may be formed as a cylinder, but the present application is not limited thereto.

[0275] An actuating slope 121S may be formed on the outer periphery of the top of the locking portion 12S. A engaging groove 122S may also be formed on the locking portion 12S. The engaging groove 122S may receive the engaging member 25S and thus be locked (this will be described in detail below).

[0276] See Figure 23, the female buckle 20S may have a first magnet 30S, and the male buckle 10S may have a second magnet 40S. The first magnet 30S and the second magnet 40S may attract each other. When the male buckle 10S and the female buckle 20S are buckled together, the first magnet 30S and the second magnet 40S may approach and align with each other along the Z direction. The male buckle 10S and the female buckle 20S may be further close to and locked with each other under the action of the attraction force between the first magnet 30S and the second magnet 40S.

[0277] The interior of the locking portion 12S may have a second magnet receiving portion 123S. The second magnet 40S is disposed within the second magnet receiving portion 123S. In one embodiment, the second magnet receiving portion 123S may be formed as a chamber open at the lower side. The second cover 14S may be removably disposed at the lower side of the second magnet receiving portion 123S. The second cover 14S may be a plastic cover, which is connected to the second magnet receiving portion 123S by a snap fit, thereby positioning the second magnet 40S within the second magnet receiving portion 123S.

[0278] The female buckle 20S may include a sliding seat 26S. The sliding seat 26S may be slidably disposed on the female buckle housing 21S, and the second button 23 may be actuated to drive the sliding seat 26S to slide. Refer to Figure 24 and Figure 25 , in one embodiment, the sliding seat 26S may move synchronously with the second button 23S. The first magnet 30S may be disposed on the sliding seat 26S.

[0279] A first reset member 50S may be disposed between the first button 22S and the second button 23S. The first reset member 50S applies a pushing force to the first button 22S and the second button 23S to move them away from each other. Specifically, refer to Figure 24 and Figure 25 , in one embodiment, a first reset member 50S may be disposed between the first button 22S and the sliding seat 26S. The first reset member 50S applies a pushing force to the first button 22S and the sliding seat 26S to move them away from each other. After unlocking is completed and the male buckle 10S and the female buckle 20S are separated from each other, the first button 22S and the second button 23S are released, and the elastic restoring force of the first reset member 50S pushes the first button 22S or the second button 23S to the unactuated position along the X direction respectively. The first reset member 50S may be a helical spring, but the present application is not limited thereto.

[0280] One side of the first button 22S along the Y direction may have a pushing portion 220S. The pushing portion 220S may be formed as a triangle, but the present application is not limited thereto. The side of the pushing portion 220S along the X direction close to the female buckle housing 21S ( Figure 24 or Figure 25On the upper side of [the relevant part] can form a first stop portion 222S. The first stop portion 222S can abut against the female buckle housing 21S to limit the first button 22S, thereby preventing the first button 22S from sliding outside the female buckle housing 21S and separating from the female buckle housing 21S. In another embodiment, both sides of the first button 22S along the Y direction can have the first stop portion 222S.

[0281] The hypotenuse of the triangle formed by the pushing portion 220S can form a first inclined surface 221S. The first inclined surface 221S can be inclined relative to the X direction.

[0282] The second button 23S can have an abutting portion 231S. The abutting portion 231S can be formed on one side of the second button 23S along the Y direction. Specifically, in one embodiment, the abutting portion 231S and the first inclined surface 221S can be formed on the same side of the second button 23S and the first button 22S.

[0283] The female buckle 20S can include a blocking member 24S. The blocking member 24S can be disposed within the female buckle housing 21S and can slide a certain distance along the Y direction. The blocking member 24S can have a second inclined surface 241S. The second inclined surface 241S can be formed on the portion of the blocking member 24S close to the first inclined surface 221S, and the second inclined surface 241S is parallel to the first inclined surface 221S. When the first button 22S is not actuated along the X direction, the blocking member 24S abuts against the abutting portion 231S in the X direction to block the movement of the second button 23S in the direction of the first button 22S (i.e., along the X direction). When the first button 22S is actuated along the X direction, the second inclined surface 241S cooperates with the first inclined surface 221S to push the blocking member 24S away from the first button 22S and the second button 23S along the Y direction, so that the blocking member 24S no longer blocks the abutting portion 231S in the X direction. When the blocking member 24S does not block the abutting portion 231S in the X direction, the second button 23S can be actuated toward the first button 22S along the X direction, thereby unlocking the engaging member 25S and the locking portion 12S (which will be described in detail below).

[0284] In one embodiment, since the first magnet 30S is fixedly connected to the sliding seat 26S, when the second button 23S is actuated along the X direction, the first magnet 30S will also move along the X direction.

[0285] One side of the abutting portion 231S along the X direction close to the female buckle housing 21S ( Figure 24 or Figure 25 the lower side in [the relevant part]) can form a second stop portion 232S. The female buckle housing 21S can prevent the second button 23S from sliding outside the female buckle housing 21S by abutting against the second stop portion 232S.

[0286] The female buckle housing 21S may have a female buckle lower cover 214S and a female buckle upper cover 215S. The female buckle lower cover 214S may have a positioning member 2141S. The blocking member 24S may have a limiting hole 243S. The limiting hole 243S has a certain length in the Y direction. The positioning member 2141S may pass through the limiting hole 243S in the Z direction, thereby limiting the sliding distance of the blocking member 24S in the Y direction.

[0287] A second reset member 60S may be disposed between the blocking member 24S and the female buckle housing 21S. The second reset member 60S may apply a force to the blocking member 24S to move towards the first button 22S and the second button 23S. The second reset member 60S may be a helical spring, but the present application is not limited thereto. In one embodiment, the blocking member 24S may have a receiving groove 245S. The receiving groove 245S may be formed at an end of the blocking member 24S away from the first button 22S and the second button 23S. The second reset member 60S may be disposed between the female buckle lower cover 214S and the receiving groove 245S.

[0288] See Figure 26 , the engaging member 25S may include a first engaging member 251S and a second engaging member 252S. The sliding seat 26S may simultaneously drive the first engaging member 251S and the second engaging member 252S to unlock from the locking portion 12S. The first engaging member 251S may be fixed or positioned on the female buckle housing 21S. The second engaging member 252S may be fixed or positioned on the sliding seat 26S, and thus move together with the sliding seat 26S. The second engaging member 252S may move away from the locking portion 12S in the X direction to unlock. The first engaging member 251S may be expanded in the Y direction to release the locking portion 12S to unlock.

[0289] The first engaging member 251S may include a first engaging piece 2511S, a second engaging piece 2512S and a first transverse portion 2513S.

[0290] The second engaging member 252S may include a third engaging piece 2521S, a fourth engaging piece 2522S and a second transverse portion 2523S. In one embodiment, the first engaging member 251S and the second engaging member 252S may have the same structure.

[0291] The first engaging member 251S may be disposed on a side of the first magnet 30S close to the second button 23S. The second engaging member 252S may be disposed on a side of the first magnet 30S close to the first button 22S.

[0292] The first engaging piece 2511S and the second engaging piece 2512S of the first engaging member 251S, and the third engaging piece 2521S and the fourth engaging piece 2522S of the second engaging member 252S jointly surround the lock mating portion 12S, so as to lock with the lock mating portion 12S at four different positions. The first engaging piece 2511S, the second engaging piece 2512S, the third engaging piece 2521S, and the fourth engaging piece 2522S can respectively surround approximately one-quarter of the circumference of the lock mating portion 12S, so as to jointly surround approximately the entire circumference, but the present application is not limited thereto.

[0293] In other embodiments, the first engaging member 251S and / or the second engaging member 252S may have only one engaging piece.

[0294] See Figures 33 to 36 , the female buckle lower cover 214S and the female buckle upper cover 215S are combined with each other to form the female buckle housing 21S. A plurality of connecting holes 2142S may be formed on the female buckle lower cover 214S. A plurality of connecting fingers 2151S may be formed on the female buckle upper cover 215S. The plurality of connecting fingers 2151S and the plurality of connecting holes 2142S are formed at corresponding positions and cooperate with each other to make the female buckle lower cover 214S and the female buckle upper cover 215S snap-fit.

[0295] See Figure 35 , the female buckle upper cover 215S may be provided with a limiting rib 2152S. The limiting rib 2152S is used to cooperate with the first button 22S to limit the moving stroke of the first button 22S, so as to prevent the first button 22S from being pressed excessively. If the first button 22S is pressed excessively, the first button 22S may occupy the moving space of the second button 23S, so that the second button 23S cannot be fully pressed, and further cause the engaging member 25S and the lock mating portion 12S to be unlocked incompletely. Moreover, if the first button 22S is pressed excessively, the pushing portion 220S on the first button 22S may be stuck by the blocking member 24S and cannot be reset. In one embodiment, the female buckle upper cover 215S may further be provided with a mounting post 2153S. The mounting post 2153S can cooperate with the positioning member 2141S to fix the female buckle upper cover 215S and the female buckle lower cover 214S to each other. The mounting post 2153S can extend into the limiting hole 243S and cooperate with the limiting hole 243S to limit the moving stroke of the blocking member 26S. There are reinforcing ribs 2154S on both sides of the mounting post 2153S. The reinforcing ribs 2154S can improve the strength of the mounting post 2153S. The limiting hole 243S may have a notch 2431S that cooperates with the reinforcing ribs 2154S (see Figure 31 , Figure 33 and Figure 36 ).

[0296] See Figure 26 and Figure 27, the female buckle lower cover 214S may have a first positioning block 2143S and a second positioning block 2144S. The first positioning block 2143S and the second positioning block 2144S may be arranged at intervals along the X direction. A part of the first engaging member 251S may be located between the first positioning block 2143S and the second positioning block 2144S to be limited by the first positioning block 2143S and the second positioning block 2144S. Specifically, the first horizontal portion 2513S may be located between the first positioning block 2143S and the second positioning block 2144S. The first positioning block 2143S may be located between the first engaging piece 2511S and the second engaging piece 2512S and contact the first engaging piece 2511S and the second engaging piece 2512S.

[0297] In another embodiment, the first engaging member 251S may be jointly positioned by the sliding seat 26S and the female buckle lower cover 214S. Specifically, the first engaging member 251S is positioned between the sliding seat 26S and the female buckle housing 21S along the Z direction, and at the same time, the first horizontal portion 2513S is blocked by the first positioning block 2143S, thereby restricting the movement of the first engaging member 251S in the X direction. The function of the second positioning block 2144S is to prevent the first engaging member 251S from accidentally moving away from the first positioning block 2143S. Of course, in other embodiments, the first horizontal portion 2513S of the first engaging member 251S may also be directly fixed on the female buckle housing 21S, and the present application is not limited thereto.

[0298] In another embodiment, the second positioning block 2144S may be omitted.

[0299] See Figure 29 and Figure 30 , since the structures of the first engaging member 251S and the second engaging member 252S are the same (the first engaging piece 2511S is the same as the third engaging piece 2521S, and the second engaging piece 2512S is the same as the fourth engaging piece 2522S), only the structure of the first engaging member 251S will be described in detail below. The first engaging member 251S may be formed by bending a metal sheet. For example, the first engaging member 251S may be at least partially formed by a metal sheet (such as an iron sheet). The first engaging piece 2511S and the second engaging piece 2512S are symmetrically formed and located on both sides of the first engaging member 251S. The first engaging piece 2511S and the second engaging piece 2512S are connected by the first horizontal portion 2513S. At least one of the first engaging piece 2511S, the second engaging piece 2512S, the third engaging piece 2521S, and the fourth engaging piece 2522S may be coated with plastic, so that when the first engaging piece 2511S, the second engaging piece 2512S, the third engaging piece 2521S, and / or the fourth engaging piece 2522S contact the engaging groove 122S of the key matching portion 12S, it is quieter and has less vibration.

[0300] On one side of the first engaging member 251S close to the sliding seat 26S, there may be a driving block 2514S. In one embodiment, there may be a driving block 2514S on each of the first engaging piece 2511S and the second engaging piece 2512S.

[0301] Two driving blocks 2514S may be formed at the outer edges of the first engaging piece 2511S and the second engaging piece 2512S, and the outer side of the driving block 2514S is formed in a straight line shape while the inner side of the driving block 2514S is formed in an arc shape, but the present application is not limited thereto.

[0302] On one side of the second engaging member 252S close to the sliding seat 26S, there may be a driving block 2524S. There may be a driving block 2524S on each of the third engaging piece 2521S and the fourth engaging piece 2522S.

[0303] The sliding seat 26S may have a driving inclined surface 2641S. When the sliding seat 26S moves in the X direction, the sliding seat 26S drives the first engaging piece 2511S to move in the Y direction through the driving inclined surface 2641S to unlock from the locking portion 12S. When the sliding seat 26S moves in the X direction, the sliding seat 26S drives the second engaging piece 2512S to move in the Y direction through the driving inclined surface 2641S to unlock from the locking portion 12S.

[0304] See Figure 32A and Figure 32B , the sliding seat 26S may have a first recess 264S, and a driving inclined surface 2641S may be formed inside the first recess 264S. Specifically, the sliding seat 26S has a first recess 264S on each side. See Figure 28 and Figure 31 , the driving blocks 2514S on the first engaging piece 2511S and the second engaging piece 2512S of the first engaging member 251S respectively extend into the two first recesses 264S. The two driving blocks 2514S on the first engaging piece 2511S and the second engaging piece 2512S are respectively located in the two first recesses 264S and abut against the driving inclined surfaces 2641S in the two first recesses 264S.

[0305] The sliding seat 26S may also have a second recess 265S. Specifically, the sliding seat 26S has a first recess 264S and a second recess 265S on each side. The first recess 264S and the second recess 265S may be arranged in the X direction. The first recess 264S and the second recess 265S may have different shapes from each other, but the present application is not limited thereto. The driving blocks 2524S on the third engaging piece 2521S and the fourth engaging piece 2522S of the second engaging member 252S respectively extend into the two second recesses 265S. The driving blocks 2524S on the third engaging piece 2521S and the fourth engaging piece 2522S are respectively located in the two second recesses 265S.

[0306] See also Figure 36 The second transverse portion 2523S of the second engaging member 252S can abut against the top (one end along the X direction) of the sliding seat 26S, so that when the sliding seat 26S moves along the X direction, the sliding seat 26S pushes the second engaging member 252S to disengage from the locking portion 12S of the male buckle 10S through the second transverse portion 2523S. Figure 31 When the sliding seat 26S moves along the X direction, the driving inclined surface 2641S drives the first engaging piece 2511S and the second engaging piece 2512S to move toward both sides along the Y direction and unlock with the locking portion 12S.

[0307] See also Figure 32B and Figure 36 , a protrusion 266S may be further provided on the sliding seat 26S. The protrusion 266S may be located between the third engaging piece 2521S and the fourth engaging piece 2522S for limiting. In one embodiment, a spring positioning portion 267S may be further provided on the sliding seat 26S. The spring positioning portion 267S may extend toward the first button 22S along the X direction and be connected to the first reset member 50S.

[0308] In some embodiments not shown, the second engaging member 252S can also be fixed or positioned on the female buckle housing 21S like the first engaging member 251S. In this way, when the sliding seat 26S moves along the X direction, the third engaging piece 2521S can be driven along the Y direction by the inclined surface at the corresponding position on the sliding seat 26S, thereby moving along the Y direction and unlocking the matching lock portion 12S. When the sliding seat 26S moves along the X direction, the fourth engaging piece 2522S can be driven along the Y direction by the inclined surface at the corresponding position on the sliding seat 26S, thereby moving along the Y direction and unlocking the matching lock portion 12S.

[0309] In some embodiments not shown, when the sliding seat 26S moves along the X direction, the second engaging member 252S can be pushed to both sides along the Y direction by the inclined surface on the sliding seat 26S (for example, the inclined surface at the position of the second recess 265S) and unlocked from the locking portion 12S.

[0310] The operation process of the buckle 100S will be described below.

[0311] See also Figure 23 and Figure 26, when the male buckle 10S and the female buckle 20S are buckled with each other, the male buckle 10S and the female buckle 20S are brought closer to each other along the Z direction. The locking portion 12S enters the female buckle housing 21S through the docking hole 213S. The first magnet 30S and the second magnet 40S attract each other to bring the male buckle 10S and the female buckle 20S closer. At this time, the actuating slope 121S of the locking portion 12S can push the first engaging piece 2511S and the second engaging piece 2512S to move radially outward (outward along the plane where the X direction and the Y direction are located). After the actuating slope 121S passes through the engaging member 25S, the first engaging piece 2511S and the second engaging piece 2512S return to the state where they do not move radially outward and extend into the engaging groove 122S, so that the first engaging member 251S and the locking portion 12S are locked with each other. In some embodiments, the first engaging member 251S returns to the undeformed state.

[0312] In addition, the actuating slope 121S of the locking portion 12S can push the third engaging piece 2521S and the fourth engaging piece 2522S to move radially outward (outward along the plane where the X direction and the Y direction are located). After the actuating slope 121S passes through the engaging member 25S, the third engaging piece 2521S and the fourth engaging piece 2522S return to the state where they do not move radially outward and extend into the engaging groove 122S, so that the second engaging member 252S and the locking portion 12S are locked with each other. In some embodiments, the second engaging member 252S returns to the undeformed state.

[0313] As Figure 24 shown, when the buckle 1S is in the locked state, the blocking member 24S abuts against the abutting portion 231S of the second button 23S, so the second button 24S cannot move and the buckle 1S cannot be unlocked.

[0314] See Figure 25 、 Figure 26 、 Figure 28 and Figure 31 , when unlocking is required, first press the first button 22S inward along the X direction. The first slope 221S of the first button 22S cooperates with the second slope 241S of the blocking member 24S to push the blocking member 24S away from the first button 22S along the Y direction, so that the blocking member 24S is disengaged from the abutting portion 231S of the second button 23S. Then, press the second button 23S in the direction opposite to the moving direction of the first button 22S to unlock the buckle 1S.

[0315] When unlocking the buckle 1S, the movement of the second button 23S toward the first button 22 along the X direction drives the first magnet 30S to move. The movement of the first magnet 30S causes the first magnet 30S and the second magnet 40S to move away from each other along the X direction and no longer be aligned with each other (that is, be offset from each other), thereby eliminating or reducing the attractive force between the first magnet 30S and the second magnet 40S.

[0316] When unlocking the locking device 1S, the movement of the second button 23S towards the first button 22 in the X direction drives the movement of the sliding seat 26S. The movement of the sliding seat 26S causes the driving blocks 2514S on the first engaging piece 2511S and the second engaging piece 2512S to move relative to the driving inclined surface 2641S of the sliding seat 26S, and the first engaging piece 2511S and the second engaging piece 2512S are spread apart (opened to both sides) by the driving inclined surface 2641S so as to disengage from the engaging groove 122S.

[0317] When unlocking the locking device 1S, the movement of the second button 23S towards the first button 22 in the X direction drives the movement of the second engaging member 252S. The movement of the second engaging member 252S causes the third engaging piece 2521S and the fourth engaging piece 2522S to disengage from the engaging groove 122S. That is to say, when the second button 23S is actuated, the direction in which the first engaging piece 2511S and the second engaging piece 2512S disengage from the engaging groove 122S intersects with the direction in which the third engaging piece 2521S and the fourth engaging piece 2522S disengage from the engaging groove 122S. In this way, the first engaging piece 2511S, the second engaging piece 2512S, the third engaging piece 2521S and the fourth engaging piece 2522S all disengage from the engaging groove 122S, so that the male buckle 10S and the female buckle 20S are unlocked. Finally, the male buckle 10S and the female buckle 20S are separated from each other in the Z direction.

[0318] After the unlocking is completed and the male buckle 10S and the female buckle 20S are separated from each other, the first button 22S and the second button 23S can be released separately or simultaneously. The first button 22S and the second button 23S are respectively pushed in the X direction to the non-actuated position. The second reset member 60S pushes the blocking member 24S in the Y direction to the position where it is not actuated by the first button 22S, and blocks the movement of the second button 23 in the X direction again. During the process of the second button 23S moving to the non-actuated position, the sliding seat 26S, the second engaging member 252S and the first magnet 30S move to the initial position together with the second button 23S. As the sliding seat 26S moves towards the initial position, the driving inclined surface 2641S on the sliding seat 26S gradually disengages from the abutment with the driving blocks 2514S on the first engaging piece 2511S and the second engaging piece 2512S, so that the first engaging piece 2511S and the second engaging piece 2512S return to the non-spread state under the action of their own elastic restoring force.

[0319] Finally, the first engaging piece 2511S, the second engaging piece 2512S, the third engaging piece 2521S and the fourth engaging piece 2522S extend into the docking hole 213S for engaging with the locking portion 12S of the male buckle 10S. The first magnet 30S is aligned with the docking hole 213S to be aligned with the second magnet 40S and attract each other when the male buckle 10S and the female buckle 20S are inserted and mated.

[0320] A further embodiment of the present application will be described below.

[0321] Referring to Figure 37 and Figure 38 , the female buckle 20S may include a first button 22S and a second button 23S. The first button 22S and the second button 23S may be partially exposed to the outside of the female buckle 20S. The first button 22S and the second button 23S may be disposed on both sides of the female buckle 20S along the X direction. In some embodiments, the first button 22S and the second button 23S may be opposite to each other. The female buckle 20S may have a female buckle housing 21S. The female buckle 20S may have a engaging member 25S. The engaging member 25S may engage with the locking portion 12S (refer to Figure 22 ) to achieve the locking of the male buckle 10S (refer to Figure 22 ) and the female buckle 20S. The engaging member 25S may be a metal sheet, but the present application is not limited thereto.

[0322] In some embodiments, the engaging member 25S may be regarded as an integral structure, that is, compared with the foregoing embodiments, it may be regarded as integrally forming the first engaging member 251S and the second engaging member 252S of the foregoing embodiments.

[0323] The female buckle 20S may include a sliding seat 26S. The sliding seat 26S may be slidably disposed on the female buckle housing 21S, and the second button 23 may be actuated to drive the sliding seat 26S to slide.

[0324] In some embodiments, the sliding seat 26S may move synchronously with the second button 23S. A first reset member 50S may be disposed between the first button 22S and the spring positioning portion 267S of the sliding seat 26S. The first reset member 50S applies a thrust force to the first button 22S and the sliding seat 26S to move them away from each other. The first reset member 50S may be a helical spring, but the present application is not limited thereto. The female buckle housing 21S may have a female buckle lower cover 214S and a female buckle upper cover 215S.

[0325] Referring to Figure 38 and Figure 39 , the female buckle lower cover 214S may have a docking hole 213S. The docking hole 213S may allow the locking portion 12S to be inserted therein. The docking hole 213S may be formed as a circle, but the present application is not limited thereto.

[0326] The female buckle 20S may have an inclined surface 2146S. When the engaging member 25S moves away from the locking portion 12S along the X direction with the sliding seat 26S, the inclined surface 2146S may drive the engaging piece of the engaging member 25S to move away from the docking hole 213S along the Y direction to unlock with the locking portion 12S.

[0327] The female buckle 20S may have a driving chute 2145S. Specifically, the lower cover 214S of the female buckle may have two driving chutes 2145S, and the two driving chutes 2145S are located on both sides of the docking hole 213S. The driving chute 2145S may have an approximately triangular shape. Specifically, it may have a right-angled triangular shape, but the present application is not limited thereto. The distance of the driving chute 2145S from the center of the docking hole 213S along the Y direction gradually increases along the moving direction of the sliding seat 26S (such as Figure 39 upward along the X direction in

[0328] See Figure 40 , the engaging member 25S may only include the second engaging member 252S. In other words, the engaging member 25S is formed by the second engaging member 252S, or the engaging member 25S is equivalent to the second engaging member 252S. The second engaging member 252S may be formed by bending a metal sheet. For example, the second engaging member 252S may be at least partially formed by a metal sheet (such as an iron sheet).

[0329] The second engaging member 252S has an encircling structure, for example. The sides of the third engaging piece 2521S and the fourth engaging piece 2522S close to each other may form an arc shape so as to match the contour of the engaging groove 122S.

[0330] The second engaging member 252S may include a third engaging piece 2521S, a fourth engaging piece 2522S, and a second transverse portion 2523S. The third engaging piece 2521S and the fourth engaging piece 2522S are symmetrically formed and located on both sides of the second engaging member 252S. One side of the third engaging piece 2521S and the fourth engaging piece 2522S is connected by the second transverse portion 2523S. The second transverse portion 2523S of the second engaging member 252S may abut against the top (one end along the X direction) of the sliding seat 26S, so that when the sliding seat 26S moves along the X direction, the sliding seat 26S pushes the second engaging member 252S to move synchronously along the X direction through the second transverse portion 2523S. At least one of the third engaging piece 2521S and the fourth engaging piece 2522S may be coated with plastic, so that when the third engaging piece 2521S and / or the fourth engaging piece 2522S contacts the engaging groove 122S of the locking portion 12S (see Figure 22 ), it is quieter and has less vibration.

[0331] Another difference between this embodiment and the foregoing embodiments is that a driving convex portion 2525S may be formed on the engaging member 25S. When pressing the second button 23S to drive the engaging member 25S to move along the X direction, the driving convex portion 2525S moves along the inclined surface 2146S, and thus is pushed outward by the two inclined surfaces 2146S.

[0332] In some embodiments, the third engaging piece 2521S and the fourth engaging piece may be respectively formed with driving protrusions 2525S. When the second engaging member 252S moves away from the locking portion 12S along the X direction with the sliding seat 26S, the two inclined surfaces 2146S respectively drive the driving protrusions 2525S of the third engaging piece 2521S and the fourth engaging piece 2522S to move away from each other along the Y direction, so that the third engaging piece 2521S and the fourth engaging piece 2522S of the second engaging member 252S are spread apart. That is to say, the second engaging member 252S is unlocked from the locking portion 12S along the X direction and the Y direction.

[0333] In some embodiments, the driving protrusions 2525S are arranged at the lower end of the second engaging member 252S (the end closer to the second button 23S along the X direction). Specifically, the two driving protrusions 2525S may be arranged on the other side of the second engaging member 252S (the third engaging piece 2521S and the fourth engaging piece 2522S) away from the second transverse portion 2523S.

[0334] Specifically, the two driving protrusions 2525S may be respectively formed at a corner of the third engaging piece 2521S and the fourth engaging piece 2522S. The driving protrusion 2525S may be formed as a cylindrical protrusion, but the present application is not limited thereto.

[0335] The driving protrusions 2525S on the third engaging piece 2521S and the fourth engaging piece 2522S are respectively located in the two driving inclined grooves 2145S of the female buckle lower cover 214S. When the second button 23S is pressed to drive the sliding seat 26S to move along the X direction, the distance between the driving protrusions 2525S on the third engaging piece 2521S and the fourth engaging piece 2522S gradually increases, so that the engaging member 25S is spread apart to both sides along the Y direction.

[0336] On the side of the third engaging piece 2521S and the fourth engaging piece 2522S away from the second transverse portion 2523S, hook portions 2526S may be respectively provided. The hook portions 2526S may extend and bend from the third engaging piece 2521S or the fourth engaging piece 2522S to form a shape similar to the letter "L". The sliding seat 26S may be provided with two hook portion avoidance grooves 268S. The two hook portions 2526S may be respectively located in the hook portion avoidance grooves 268S to prevent the sliding seat 26S from blocking the movement of the third engaging piece 2521S and the fourth engaging piece 2522S. The hook portions 2526S can be used for mold positioning. In some embodiments not shown, the hook portions 2526S may be omitted.

[0337] See Figure 37 and Figure 39, the second engaging member 252S can be driven to unlock the matching lock portion 12S. The second engaging member 252S is disposed on the sliding seat 26S. The third engaging piece 2521S and the fourth engaging piece 2522S of the second engaging member 252S can surround the matching lock portion 12S, thereby locking with the matching lock portion 12S.

[0338] In some embodiments, the female snap 20S has only one engaging member (the second engaging member 252S), which surrounds the maximum diameter portion of the matching locking portion 12S of the male snap 10S. If the second engaging member 252S moves in the X direction to disengage the matching locking portion 12S, the lower end of the second engaging member 252S must pass over the maximum diameter portion. If the lower end of the second engaging member 252S (the end close to the second button 23S along the X direction) cannot be opened, it is difficult for the second engaging member 252S to move out of the matching locking portion 12S. Therefore, some embodiments can ensure that the male snap 10S and the female snap 20S are stably and reliably locked to each other using only one engaging member. During the unlocking process, when the second engaging member 252S can move along the X direction with the sliding seat 26S, the third engaging piece 2521S and the fourth engaging piece 2522S are stretched open by driving the two driving inclined grooves 2145S provided on the female buckle lower cover 214S, thereby realizing the rapid and reliable unlocking of the male buckle 10S and the female buckle 20S.

[0339] The operation process of the buckle 100S in some embodiments will be described below.

[0340] See also Figure 37 and Figure 39 When the male snap 10S and the female snap 20S are fastened to each other, the male snap 10S and the female snap 20S are brought close to each other in the Z direction (refer to Figure 21A , Figure 21B and Figure 22 The locking portion 12S enters the female buckle housing 21S through the docking hole 213S. The first magnet 30S and the second magnet 40S attract each other to bring the male buckle 10S and the female buckle 20S closer (refer to Figure 23 ). At this time, the actuating inclined surface 121S of the matching locking portion 12S pushes the third engaging piece 2521S and the fourth engaging piece 2522S radially outward to move. After the actuating inclined surface 121S passes the engaging member 25S, the third engaging piece 2521S and the fourth engaging piece 2522S return to a state where they are not moved radially outward and extend into the engaging groove 122S, so that the engaging member 25S and the matching locking portion 12S are locked with each other. In some embodiments, the second engaging member 252S returns to a state where it is not deformed.

[0341] When unlocking is required, first press the first button 22S inward along the X direction. The first inclined surface 221S of the first button 22S cooperates with the second inclined surface 241S of the blocking member 24S to push the blocking member 24S away from the first button 22S along the Y direction, so that the blocking member 24S disengages from the abutting portion 231S of the second button 23S (refer to Figure 24 and Figure 25 ). Then, press the second button 23S in the direction opposite to the moving direction of the first button 22S. When the second button 23S moves along the X direction, the second button 23S pushes the sliding seat 26S, and the sliding seat 26S moves along the X direction together with the second button 23S. The movement of the sliding seat 26S further causes the second engaging member 252S to move away from the locking portion 12S along the X direction by pushing the second horizontal portion 2523S. The movement of the second engaging member 252S causes the third engaging piece 2521S and the fourth engaging piece 2522S to move away from the engaging groove 122S along the X direction. At the same time, the two driving convex portions 2525S move along the inclined surfaces 2146S of the two driving inclined grooves 2145S, so as to be pushed outward by the two inclined surfaces 2146S, causing the third engaging piece 2521S and the fourth engaging piece 2522S to be spread apart along the Y direction and away from the engaging groove 122S. That is to say, when the second button 23S is actuated, the third engaging piece 2521S and the fourth engaging piece 2522S move away from the engaging groove 122S both along the X direction and along the Y direction. Finally, the male buckle 10S and the female buckle 20S are separated from each other along the Z direction.

[0342] During the unlocking operation, the first button 22S and the second button 23S can be pressed simultaneously to unlock, so that the time required for the unlocking operation can be reduced and it is convenient for the user to operate.

[0343] Figure 37 For other contents of the embodiment, reference can be made to the relevant descriptions of the foregoing embodiments.

[0344] In this application, the X direction, the Y direction, and the Z direction can be staggered in pairs. Preferably, the X direction (the first direction), the Y direction (the second direction), and the Z direction (the third direction) can be perpendicular to each other in pairs.

[0345] Those skilled in the art will readily conceive of other embodiments of the present application after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present application, which follow the general principles of this disclosure and include common general knowledge or conventional technical means in the technical field not disclosed in this application. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present application are pointed out by the claims of the present application.

[0346] Although the present application has been described by way of example with reference to typical embodiments, the terms used are illustrative and exemplary rather than restrictive. Since the present application can be embodied in many forms without departing from the spirit and essence of the present application, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be construed in the broadest sense within the scope defined by the claims, and thus all changes falling within the scope of the claims or their equivalents should be covered by the claims.

Claims

1. A fastener, comprising a male fastener and a female fastener that can be inserted and mated with each other. The female fastener is connected with a first magnet, and the male fastener is connected with a second magnet. The fastener further includes a first button and a second button. The first button is arranged to operatively block the actuation of the second button, and the second button is arranged to be actuated to unlock the male fastener and the female fastener.

2. The buckle according to claim 1, wherein, The first button and the second button are slidably arranged on the female fastener.

3. The buckle according to claim 1, wherein, The fastener further includes a blocking member that can operatively block the actuation of the second button. The movement of the first button in the first direction causes the blocking member to move in the second direction.

4. The buckle according to claim 3, wherein, The first button has a first inclined surface, and the blocking member has a second inclined surface that cooperates with the first inclined surface. The movement of the first button in the first direction causes the blocking member to move in the second direction through the cooperation of the first inclined surface and the second inclined surface.

5. The buckle according to claim 3, wherein, The male fastener is inserted and mated with the female fastener in the third direction.

6. The buckle according to claim 5, wherein, The second button is actuated in a fourth direction opposite to the first direction.

7. The buckle according to claim 6, wherein, A locking portion is provided on the male fastener, and a engaging member is provided on the female fastener. The engaging member is engaged with the locking portion to achieve the locking of the male fastener and the female fastener. The second button is actuated to drive the engaging member to disengage from the engagement with the locking portion.

8. The buckle according to claim 7, wherein, The engaging member moves in the fourth direction to disengage from the locking portion, and the first magnet moves in the fourth direction away from the second magnet, so that the male fastener and the female fastener are separated.

9. The buckle according to claim 7, wherein, The female fastener further includes a sliding seat. The engaging member is arranged on the sliding seat, and the sliding seat is connected with the second button. The second button is actuated to drive the sliding seat and the engaging member to move in the fourth direction, and the engaging member elastically deforms when abutting against the locking portion during the movement in the fourth direction.

10. The buckle according to claim 7, wherein, The locking portion includes an engaging portion. When the male fastener and the female fastener are inserted and mated, the actuating inclined surface on the engaging portion presses the engaging member to deform the engaging member.

11. The buckle according to claim 7, wherein, When the male fastener and the female fastener are inserted and mated, the locking portion moves in the third direction to press the engaging member to deform, so that the locking portion is engaged with the engaging member. And when the male fastener and the female fastener are unlocked, the engaging member moves in the fourth direction to disengage from the engagement with the locking portion to be unlocked. The third direction and the fourth direction intersect with each other.

12. The buckle according to claim 9, wherein, The locking portion houses the second magnet, and the sliding seat houses the first magnet. When the male fastener and the female fastener are inserted and mated, the first magnet faces the second magnet.

13. The buckle according to claim 10, wherein, The engaging member includes a first engaging piece and a second engaging piece. The first engaging piece and the second engaging piece are arranged at intervals, so that the distance between the first engaging piece and the second engaging piece is less than the outer diameter of the engaging portion.

14. The buckle according to claim 1, wherein, A first reset member is arranged between the first button and the second button. The first reset member applies a thrust force that pushes the first button and the second button away from each other.

15. The buckle according to claim 3, wherein, The female buckle includes a female buckle housing, and a second reset member is disposed between the blocking member and the female buckle housing, and the second reset member applies a force to the blocking member to move it towards a position where the second button is blocked.

16. A child safety seat, wherein, The child safety seat includes a buckle as described in any one of claims 1 to 15.

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