Fastener

Abstract

The invention discloses a buckle which comprises a male buckle assembly with a locking part and a female buckle assembly with a locking hole, the locking part can be inserted into the locking hole to enable the male buckle assembly and the female buckle assembly to form magnetic connection, and the female buckle assembly comprises a seat body, a pressing piece and a locking piece. The locking part is provided with a locking hole, the locking part is clamped with the locking part at the locking hole, the pressing part comprises a pressing part and a first elastic part, the pressing part is pressed in the first direction to push the locking part to be disengaged from the locking part, and the projection of the first elastic part and the projection of the pressing part in the first direction are not overlapped with each other. The buckle body is small in size, light in weight, simple in structure and convenient to install.

Description

Technical Field

[0001] The present application relates to a buckle, and more particularly to a magnetic buckle. Background Art

[0002] A magnetic buckle is a device that uses magnetism to assist in the connection and separation of buckles. Magnetic buckles are widely used in products such as baby strollers, child safety seats, and baby carriers. In baby carrier products, magnetic buckles can quickly and conveniently connect and separate two components, facilitating the donning and doffing of the baby carrier. Under the condition of meeting the connection strength and use stability, the user's demand for a magnetic buckle product with a small size, light weight, and simple structure is particularly obvious. In addition, the applicant also expects the buckle to have good strength and a beautiful appearance.

[0003] Therefore, it is necessary to develop a buckle that can solve the above problems. Summary of the Invention

[0004] An object of the present application is to provide a buckle with a small size and light weight.

[0005] Another object of the present application is to provide a buckle that is convenient to operate and stable in operation.

[0006] Another object of the present application is to provide a buckle with high structural strength.

[0007] To achieve the above object, in one aspect, there is provided a buckle, characterized in that the buckle comprises: a male buckle assembly having a locking portion and a female buckle assembly having a locking hole, the locking portion being insertable into the locking hole so that the male buckle assembly and the female buckle assembly form a magnetic connection, the female buckle assembly comprising a seat body, a pressing member, and a locking member, the locking member being engaged with the locking portion at the locking hole, the pressing member comprising a pressing portion and a first elastic portion, the pressing portion being pressed in a first direction to push the locking member out of engagement with the locking portion, and the projections of the first elastic portion and the pressing portion in the first direction do not overlap each other.

[0008] In one embodiment, the pressing member comprises two pressing portions, the two pressing portions being symmetrically arranged on both sides of the seat body, and the first elastic portion is located between the two pressing portions and is integrally formed with the two pressing portions.

[0009] In one embodiment, the first elastic portion connects the two pressing portions to each other on both sides of the two pressing portions.

[0010] In one embodiment, the first elastic portion tends to move the two pressing portions away from each other.

[0011] In one embodiment, the female buckle assembly includes two locking members, each of the locking members being integrally formed and including a second elastic portion, the second elastic portion being located at a side portion of the locking member and arranged along a second direction.

[0012] In one embodiment, the pressing member includes a pushing end, the locking member includes an abutting end, and the pressing portion pushes the abutting end by means of the pushing end to move the locking member along the second direction and disengage from the locking portion, the second direction intersecting with the first direction.

[0013] In one embodiment, the locking member includes a locking portion, and the locking member engages or disengages with the locking portion through the locking portion.

[0014] In one embodiment, one end of the second elastic portion is connected to the abutting end, the other end of the second elastic portion forms a connection hole, a connection post is formed on the seat body, and the connection hole is sleeved on the connection post.

[0015] In one embodiment, a first connection end is formed on the seat body, a first notch is provided on the pressing portion, and the first connection end slidably engages with the first notch so that the first connection end guides the pressing portion to move along the first direction.

[0016] In one embodiment, a second connection end is formed on the seat body, a second notch is provided on the locking portion, and the second connection end slidably engages with the second notch so that the second connection end guides the locking portion to move along the second direction.

[0017] In one embodiment, the male buckle assembly includes an engaging member and a fixing member that engage with each other, the engaging member forms a concave cavity, and the fixing member seals the concave cavity to accommodate a first magnet.

[0018] In one embodiment, the seat body has a mounting portion for mounting a second magnet, and the first connection end and the second connection end are connected to the mounting portion.

[0019] In one embodiment, both the first connection end and the second connection end are formed as strip-shaped protrusions.

[0020] In one embodiment, a first limiting portion is formed on the seat body, the first limiting portion is formed as two strip-shaped protrusions, the two strip-shaped protrusions are parallel to each other and extend along the second direction to limit the moving direction of the locking member.

[0021] In one embodiment, a locking groove is formed on the locking portion, and the locking portion extends into the locking groove to prevent the locking portion from leaving the locking hole.

[0022] In one embodiment, the pressing member is provided with a connecting arm along the first direction. The pressing member and the locking member are integrally formed and connected through the connecting arm. The pressing member and the locking member are respectively located on two sides of the locking hole along the first direction.

[0023] In one embodiment, the pressing member includes two pressing portions and two connecting arms, and the locking member includes two engaging portions. The two pressing portions and the two engaging portions are symmetrically arranged on two sides of the locking hole along the first direction respectively. Two ends of the first elastic portion are respectively connected to the two pressing portions.

[0024] In one embodiment, a fixed end is formed on the seat body. A first end of the first elastic portion is connected to the connecting arm, and a second end of the first elastic portion is detachably connected to the fixed end.

[0025] In one embodiment, an extension portion is formed at one end of the connecting arm close to the pressing portion connected thereto. The extension portion extends along the second direction, and the first end of the first elastic portion is connected to the extension portion.

[0026] In one embodiment, the extension portion extends in a direction away from the locking hole, and the first elastic portion is connected to an end of the extension portion far from the connecting arm.

[0027] In one embodiment, a limiting end is formed on the seat body. The limiting end includes a first limiting end and a second limiting end. The first limiting end cooperates with the extension portion for limiting, and the second limiting end cooperates with the pressing portion for limiting. The first limiting end and the second limiting end respectively limit at two ends of the pressing portion moving along the first direction.

[0028] In one embodiment, the second limiting end includes a first limiting surface, and the pressing portion cooperates with the first limiting surface for limiting; and / or, the second limiting end includes a second limiting surface, and the connecting arm cooperates with the second limiting surface for limiting.

[0029] In one embodiment, the pressing member includes a first pressing portion and a second pressing portion respectively located on two sides of the locking hole, and a first connecting arm and a second connecting arm. The locking member includes a first engaging portion and a second engaging portion respectively located on two sides of the locking hole. The first connecting arm connects the first pressing portion and the first engaging portion, and the first pressing portion and the first engaging portion are respectively located on two sides of the locking hole. The second connecting arm connects the second pressing portion and the second engaging portion, and the second pressing portion and the second engaging portion are respectively located on two sides of the locking hole. The first elastic portion is located between the first pressing portion and the second engaging portion, and / or the first elastic portion is located between the second pressing portion and the first engaging portion.

[0030] In one embodiment, the end of the first pressing portion and / or the second pressing portion has a protruding clamping end, and a limiting end corresponding to the clamping end is formed on the seat body, and the clamping end is located inside the limiting end.

[0031] In one embodiment, the two connecting arms are respectively located on two sides of the two pressing portions along the second direction, and the second direction intersects with the first direction.

[0032] In one embodiment, opposite clamping ends are provided at the ends of the two pressing portions, and the first elastic portion is arranged along the first direction between the two clamping ends of the two pressing portions.

[0033] In one embodiment, a first notch is formed on each of the two engaging portions, and a first protrusion cooperating with the first notch is formed on the seat body, and the first notch and / or the first protrusion extend along the first direction.

[0034] In one embodiment, a second notch is formed on the first elastic portion, and a second protrusion cooperating with the second notch is formed on the seat body, and the second notch and the second protrusion extend along the second direction.

[0035] In one embodiment, a second limiting portion is formed on the seat body, and the second limiting portion is formed as two strip-shaped protrusions, and the two strip-shaped protrusions are parallel to each other and extend along the first direction to limit the moving direction of the two connecting arms.

[0036] In one embodiment, a second limiting portion is formed on the seat body, and the second limiting portion is formed as two strip-shaped protrusions, and the two strip-shaped protrusions are parallel to each other and extend along the first direction. A third limiting portion is formed on the seat body, and the third limiting portion is formed on a side of the second limiting portion close to the locking hole.

[0037] In one embodiment, the third limiting portion is formed as two strip-shaped protrusions and is parallel to the second limiting portion.

[0038] In one embodiment, the pressing member is provided with a connecting arm along the first direction, and the connecting arm is located between the third limiting portion and the second limiting portion.

[0039] In one embodiment, the length of the third limiting portion is less than the length of the second limiting portion.

[0040] In one embodiment, the first elastic portion is provided with a positioning post, the seat body is provided with a positioning hole, and the positioning post is located in the positioning hole.

[0041] In one embodiment, the first elastic portion includes two bending portions, and the positioning post is arranged between the two bending portions.

[0042] In one embodiment, the buckle includes a mounting portion separated from the seat body, the seat body is provided with a first magnet accommodating portion, and the mounting portion is buckled outside the first magnet accommodating portion.

[0043] In one embodiment, a rib is formed on the outside of the first magnet accommodating portion.

[0044] In one embodiment, a rib is formed on the outside of the first magnet accommodating portion, a recess is formed on the inner side of the mounting portion, and the rib is slidably arranged in the recess.

[0045] In one embodiment, the buckle includes a mounting portion separated from the seat body, a fourth limiting portion is provided on the outside of the mounting portion, the locking member includes a engaging portion, the locking member is engaged or disengaged with the locking portion through the engaging portion, and the fourth limiting portion limits the movement of the engaging portion along the third direction, and the third direction is perpendicular to the first direction.

[0046] In one embodiment, the pressing portion has a third notch, and the fourth limiting portion cooperates with the third notch.

[0047] In one embodiment, a fifth limiting portion is formed on the female buckle assembly, and the fifth limiting portion extends along the third direction to prevent the connecting arm from moving along the third direction.

[0048] On the other hand, a buckle is provided, the buckle includes a male buckle assembly and a female buckle assembly, the male buckle assembly is partially inserted into the female buckle assembly to be locked by the female buckle assembly, the female buckle assembly includes a cover body, a seat body, a pressing member and a locking member, the cover body and the seat body are fixed to each other and at least partially surround the pressing member and the locking member, the pressing member and the locking member are interlocked, and the cover body and the seat body are joined to each other by ultrasonic welding.

[0049] In one embodiment, the pressing member includes a pressing portion and an elastic portion. Movement of the pressing portion in a first direction causes the locking member and the male buckle assembly to be unlocked in the first direction. The elastic portion provides an elastic force that tends to lock the locking member with the male buckle assembly. The projections of the elastic portion and the pressing portion in the first direction do not overlap each other, and / or the pressing member includes two pressing portions, two elastic portions, and two connecting arms. The female buckle assembly includes two locking members. One end of each of the two connecting arms is connected to one of the two pressing portions, and the other end of each of the two connecting arms is connected to one of the two locking members.

[0050] In one embodiment, a protruding connecting post is formed on the inner side of one of the base body and the cover body, and a protruding connecting tube is formed on the inner side of the other of the base body and the cover body. The connecting post is inserted into the connecting tube; and / or one of the cover body and the base body has elastic fingers, and the other of the cover body and the base body has snap holes. The elastic fingers cooperate with the snap holes to engage the cover body with the base body.

[0051] In one embodiment, the buckle satisfies at least one of the following: the connecting post and the connecting tube are ultrasonically welded; the outer peripheral edge of the cover body and the outer peripheral edge of the base body are ultrasonically welded; and the elastic fingers and the snap holes are ultrasonically welded.

[0052] In one embodiment, the base body has two connecting posts, and the cover body has two connecting tubes corresponding to the two connecting posts. The two connecting posts are respectively formed on both sides of the locking member in a second direction, and the second direction is perpendicular to the first direction.

[0053] In one embodiment, the cover body and the base body are combined with each other in a third direction, and the third direction is perpendicular to the first direction and the second direction. The size of the cover body in the third direction is smaller than the size of the base body in the third direction.

[0054] In one embodiment, the elastic portion has two bending portions, and a positioning post is provided between the two bending portions.

[0055] In one embodiment, a protruding connecting post is formed on the inner side of one of the base body and the cover body, and the connecting post is located between the two bending portions.

[0056] In one embodiment, a plurality of limiting portions are formed on the cover body and the base body to guide the movement of the pressing member and the locking member in the first direction and prevent the movement of the pressing member and the locking member in the second direction and the third direction. The first direction, the second direction, and the third direction are perpendicular to each other.

[0057] In one embodiment, the outer peripheral edge of the cover has a first step, a second step and a third step, the outer peripheral edge of the base has a first welding surface and a second welding surface, the first step and the second step are ultrasonically welded to the second welding surface, and the third step is ultrasonically welded to the first welding surface, and / or the cover and the base form an ultrasonic welding area, the ultrasonic welding area is located on both sides of the female buckle assembly along the second direction, and the pressing member includes a pressing portion, and the pressing portion is located on both sides of the female buckle assembly along the first direction.

[0058] In one embodiment, the first welding surface is perpendicular to the second welding surface.

[0059] The elastic portion of the buckle of the present application is arranged on the side of the pressing portion and is not in the same horizontal position as the pressing direction, reducing the internal moving space, improving the space utilization rate inside the buckle, thereby being able to reduce the volume of the buckle and making the installation of the buckle convenient at the same time.

[0060] The buckle of the present application adopts ultrasonic welding, making the overall appearance of the buckle beautiful, enabling seamless docking between components, and having good overall strength of the buckle. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] By considering the following detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings, various objects, features and advantages of the present invention will become more apparent. The drawings are only exemplary illustrations of the present invention and are not necessarily drawn to scale. In the drawings, the same reference numerals always represent the same or similar components. Among them:

[0062] Figure 1 is a perspective view of the buckle of the first embodiment of the present application, wherein the male buckle assembly is connected to the female buckle assembly;

[0063] Figure 2 is a perspective view of the buckle of the first embodiment of the present application, wherein the male buckle assembly is separated from the female buckle assembly;

[0064] Figure 3 is a perspective view of the buckle of the first embodiment of the present application, wherein the cover is removed to show the internal structure;

[0065] Figure 3A is a plan view of the buckle of the first embodiment of the present application, wherein the cover is removed to show the internal structure;

[0066] Figure 4 is of the buckle of the first embodiment of the present application along Figure 1 sectional view taken along line A-A;

[0067] Figure 4A is of the buckle of the first embodiment of the present application alongFigure 1 A cross-sectional view taken from another angle along line AA;

[0068] Figure 5 is a three-dimensional view of the buckle of the first embodiment of the present application, wherein the cover is removed to show the internal structure and the pressing portion is in a pressed state;

[0069] Figure 6 is a cross-sectional view of the buckle of the first embodiment of the present application, wherein the cutting method can refer to Figure 5 The line A1-A1 in FIG. 1 is a line A1-A1 in FIG. 1 , and the pressing portion is in a pressed state;

[0070] Figure 7 is a three-dimensional view of a female buckle assembly of a buckle of the first embodiment of the present application, wherein some components are removed to show the obscured structure;

[0071] Figure 8 is a three-dimensional view of a female buckle assembly of a buckle of the first embodiment of the present application, wherein some components are removed to show the obscured structure;

[0072] Figure 9 is a three-dimensional exploded view of the buckle of the first embodiment of the present application;

[0073] Figure 10 is a three-dimensional diagram of a buckle according to a second embodiment of the present application, wherein a male buckle component is connected to a female buckle component;

[0074] Figure 11 is a three-dimensional diagram of a buckle according to a second embodiment of the present application, wherein the male buckle component is separated from the female buckle component;

[0075] Figure 12 is a plan view of a buckle according to a second embodiment of the present application, wherein a cover is removed to show the internal structure;

[0076] Figure 13 The second embodiment of the present invention is a buckle along Figure 10 A sectional view taken along line A2-A2;

[0077] Figure 14 is a plan view of a buckle according to a second embodiment of the present application, wherein a cover is removed to show the internal structure and the pressing portion is in a pressed state;

[0078] Figure 15 The second embodiment of the present invention is a buckle along Figure 10 A sectional view taken along line A2-A2 of , wherein the pressing portion is in a pressed state;

[0079] Figure 16 is a three-dimensional exploded view of a buckle according to a second embodiment of the present application;

[0080] Figure 17is a plan view of a buckle according to a third embodiment of the present application, wherein a cover is removed to show the internal structure;

[0081] Figure 18 is a plan view of a female buckle assembly of a buckle according to a third embodiment of the present application, wherein a cover is removed to show the internal structure;

[0082] Figure 19 is a plan view of a buckle according to a fourth embodiment of the present application, wherein a cover is removed to show the internal structure;

[0083] Figure 20 is a plan view of a female buckle assembly of a buckle according to a fourth embodiment of the present application, wherein a cover is removed to show the internal structure;

[0084] Figure 21 is a three-dimensional view of a buckle according to a fifth embodiment of the present application, wherein the male buckle component is separated from the female buckle component;

[0085] Figure 22 is a three-dimensional exploded view of a buckle according to a fifth embodiment of the present application;

[0086] Figure 23 is a plan view of a buckle according to a fifth embodiment of the present application, wherein a cover is removed to show the internal structure;

[0087] Figure 24 is a perspective view of a buckle according to a fifth embodiment of the present application, wherein a cover is removed to show the internal structure;

[0088] Figure 25 is a three-dimensional diagram of a pressing member and a locking member of a buckle according to a fifth embodiment of the present application;

[0089] Figure 26 is a three-dimensional diagram of a seat body of a buckle according to a fifth embodiment of the present application;

[0090] Figure 27 is a cross-sectional view of the buckle of the sixth embodiment of the present application along the first direction, wherein the cutting method can refer to Figure 24 The line A3-A3 in FIG. 1 and the pressing portion is in a non-pressed state;

[0091] Figure 28 is a three-dimensional exploded view of a buckle according to a sixth embodiment of the present application;

[0092] Figure 29 is a plan view of a buckle according to a sixth embodiment of the present application, wherein a cover is removed to show the internal structure;

[0093] Figure 30 is a three-dimensional diagram of a pressing member and a locking member of a buckle according to a sixth embodiment of the present application;

[0094] Figure 31is a three-dimensional diagram of a seat body of a buckle according to a sixth embodiment of the present application;

[0095] Figure 32 is a three-dimensional diagram of a cover body of a buckle according to a sixth embodiment of the present application;

[0096] Figure 33 is a stereoscopic view of a pressing member and a locking member of a buckle according to a sixth embodiment of the present application from another perspective;

[0097] Figure 34 is a cross-sectional view of the buckle of the sixth embodiment of the present application along the second direction, wherein the cutting method can refer to Figure 24 Line A4-A4 in;

[0098] Figure 35 is a three-dimensional diagram of a buckle according to a seventh embodiment of the present application;

[0099] Figure 36 is another three-dimensional view of the buckle of the seventh embodiment of the present application;

[0100] Figure 37 This is another three-dimensional view of the buckle of the seventh embodiment of the present application.

[0101] Figure 38 is a side view of a female buckle assembly of a seventh embodiment of the present application;

[0102] Figure 39 is a front view of a female buckle assembly of a seventh embodiment of the present application;

[0103] Figure 40 is a three-dimensional diagram of a seat body of a female buckle assembly of a seventh embodiment of the present application;

[0104] Figure 41 is a three-dimensional diagram of a pressing member and a locking member of a seventh embodiment of the present application;

[0105] Figure 42 is a three-dimensional view of a cover body of a female buckle assembly according to a seventh embodiment of the present application;

[0106] Figure 43 is a perspective view of a female buckle assembly according to a seventh embodiment of the present application, wherein a cover is removed to show the internal structure;

[0107] Figure 44 is a three-dimensional diagram of a male buckle assembly of a seventh embodiment of the present application;

[0108] Figure 45 is a three-dimensional diagram of a buckle according to an eighth embodiment of the present application;

[0109] Figure 46 is another three-dimensional view of the buckle of the eighth embodiment of the present application;

[0110] Figure 47 is a plan view of the female buckle assembly of the eighth embodiment of the present application, where the cover is removed to show the internal structure;

[0111] Figure 47A is an exploded perspective view of the buckle of the eighth embodiment of the present application; and

[0112] Figure 47B is another exploded perspective view of the buckle of the eighth embodiment of the present application.

[0113] Figure 48 is a perspective view of the female buckle assembly of the eighth embodiment of the present application, where the cover is removed to show the internal structure;

[0114] Figure 49 is a perspective view of the base body of the female buckle assembly of the eighth embodiment of the present application;

[0115] Figure 50 is a perspective view of the cover of the female buckle assembly of the eighth embodiment of the present application;

[0116] Figure 51 is along Figure 45 a sectional view taken along line A5 - A5; and

[0117] Figure 52 is another perspective view of the cover of the female buckle assembly of the eighth embodiment of the present application.

[0118] List of reference numerals:

[0119] 100 Buckle

[0120] 1 Male buckle assembly

[0121] 10 Locking member

[0122] 11 Locking portion

[0123] 12 Locking groove

[0124] 13 First connecting portion

[0125] 14 Concave cavity

[0126] 15 Fixing member

[0127] 2 Female buckle assembly

[0128] 21 Cover

[0129] 211 First magnet receiving portion

[0130] 212 Rib

[0131] 213 Rib portion

[0132] 214 Fifth limiting portion

[0133] 22 housing

[0134] 201 card slot

[0135] 202 elastic finger

[0136] 221 opening

[0137] 222 limiting end

[0138] 222a first limiting end

[0139] 222b second limiting end

[0140] 222b1 first limiting surface

[0141] 222b2 second limiting surface

[0142] 223 first limiting part

[0143] 223a second limiting part

[0144] 223b positioning hole

[0145] 223c third limiting part

[0146] 224 first connection end

[0147] 224a first protrusion

[0148] 225 second connection end

[0149] 225a second protrusion

[0150] 226 locking hole

[0151] 227 connecting post

[0152] 228 mounting part

[0153] 2281 fourth limiting part 2282 recess

[0154] 229 fixed end 23 second connection part 24 pressing part

[0155] 241 pressing portion

[0156] 2411 first notch

[0157] 2412 third notch

[0158] 2413 elongated groove

[0159] 2414 stopping part

[0160] 242 first elastic part

[0161] 2421 Positioning end

[0162] 2422 Positioning post

[0163] 2423 Bending part

[0164] 243 Pushing end

[0165] 244 Clamping end

[0166] 245 Connecting arm

[0167] 2451 Extension part

[0168] 2452 Limiting inclined plane

[0169] 246 Fixed end 25 Locking part

[0170] 251 Engaging part

[0171] 2511 Second notch

[0172] 252 Contact end

[0173] 253 Second elastic part

[0174] 2531 Connecting hole

[0175] 3 First magnet

[0176] 4 Second magnet

[0177] 100s Fastener

[0178] 1s Male fastener assembly

[0179] 11s Locking part

[0180] 12s Engaging groove

[0181] 2s Female fastener assembly

[0182] 21s Cover

[0183] 201s First step

[0184] 202s Second step

[0185] 203s Third step

[0186] 204s Contact rib

[0187] 211s First magnet receiving part 212s Rib

[0188] 213s Rib part

[0189] 214s Fifth limiting part

[0190] 215s Connecting cylinder

[0191] Inner docking part of 216s

[0192] Edge docking part of 217s

[0193] Elastic finger of 218s

[0194] Reinforcing rib of 219s

[0195] Seat body of 22s

[0196] First welding surface of 221s

[0197] Second welding surface of 222s

[0198] First limiting part of 223as

[0199] Positioning hole of 223bs

[0200] Second limiting part of 223cs

[0201] Protrusion of 224as

[0202] Locking hole of 226s

[0203] Connecting column of 227s

[0204] Card slot of 228s

[0205] Second connecting part of 23s

[0206] Pressing part of 24s

[0207] Pressing part of 241s

[0208] First elastic part of 242s

[0209] Positioning column of 2422s

[0210] Bending part of 2423s

[0211] Connecting arm of 245s

[0212] Locking part of 25s

[0213] Band of 5s Specific implementation mode

[0214] For a clearer explanation of the overall concept of this application, the following will be further described in detail by way of examples in combination with the accompanying drawings of the specification.

[0215] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of this application. However, this application can also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited by the specific embodiments disclosed below.

[0216] In addition, in the description of the present application, it should be understood that the orientation or positional relationships indicated by terms such as "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "both sides", etc. are based on the orientation or positional relationships 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 on the present application.

[0217] The directions such as "first direction", "second direction", "third direction", "up-down direction", and "left-right direction" described in the specification are defined for clearly expressing positional relationships and are used to distinguish different directions, rather than referring to a specific direction.

[0218] In the present application, unless otherwise clearly specified and defined, terms such as "install", "connect", "join", "fix", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium, and can 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 they are only connected through the connection structure to 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.

[0219] In the present application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be 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 the present 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.

[0220] The fastener 100 of the present application can be applied to products such as baby strollers, child safety seats, and baby carriers. In the following multiple embodiments, only taking the application of the fastener 100 to a baby carrier as an example, but the present application is not limited thereto.

[0221] The first embodiment of the present application will be described below.

[0222] SeeFigure 1 and Figure 2 , the fastener 100 of the present application may include a male fastener component 1 and a female fastener component 2. The male fastener component 1 may have a first connecting portion 13. The first connecting portion 13 may be a groove to facilitate fixing (e.g., sewing) the male fastener component 1 to a corresponding part of the baby carrier. The male fastener component 1 may further have a locking portion 11. The female fastener component 2 may have a locking hole 226 (see Figure 8 ). The locking portion 11 may be inserted into the locking hole 226 so that the male fastener component 1 and the female fastener component 2 form a connection. The connection formed by the male fastener component 1 and the female fastener component 2 may be a magnetic connection (which will be described in detail below). The locking portion 11 may be a cylinder protruding from the male fastener component 1, and an annular locking groove 12 may be formed on the locking portion 11. The female fastener component 2 may include a cover body 21 and a seat body 22 that are combined with each other. The seat body 22 may form the locking hole 226. A second connecting portion 23 may be formed on the lower side of the female fastener component 2, and the second connecting portion 23 may be connected to a webbing. For example, the female fastener component 2 may be connected to a baby carrier or a safety belt, etc., and is not limited thereto. In this embodiment, the second connecting portion 23 may form two through holes (i.e., formed as a "day" shaped buckle), but is not limited thereto. Both sides of the female fastener component 2 may have pressing portions 241. The two pressing portions 241 may be symmetrically arranged on both sides of the seat body 22 along the first direction ( Figure 4 the left-right direction in). The pressing portion 241 is used to operate the connection and separation of the male fastener component 1 and the female fastener component 2. Openings 221 may be formed on both sides of the cover body 21 and the seat body 22 (see Figure 7 ). The pressing portion 241 may pass through the opening 221.

[0223] See Figure 3 and Figure 9 , the female fastener component 2 may further include a pressing member 24 and a locking member 25. The pressing member 24 may actuate the locking member 25 so that the locking member 25 can operably engage with the locking portion 11 of the male fastener component 1. The locking member 25 may engage with the locking portion 11 at the locking hole 226. The pressing portion 241 may be pressed along the first direction to push the locking member 25 out of engagement with the locking portion 11.

[0224] The pressing member 24 can be integrally formed. Alternatively, the pressing member 24 can be multiple parts independent of each other. The pressing member 24 may include a pressing portion 241 and a first elastic portion 242. The first elastic portion 242 can be arranged on the upper and lower sides of the pressing portion 241 and connect the two pressing portions 241 together. The first elastic portion 242 is located between the two pressing portions 241 and integrally formed with the two pressing portions 241. Alternatively, the first elastic portion 242 and the two pressing portions 241 can be independent of each other. The projections of the first elastic portion 242 and the pressing portion 241 along the first direction do not overlap each other. The first elastic portion 242 can have a curved shape and provide an elastic force for separating the two pressing portions 241 through elastic deformation. The two ends of the first elastic portion 242 can form a pushing end 243 to push against the abutting end 252 of the locking member 25. A clamping end 244 can be formed between the pushing end 243 and the pressing portion 241. The outer side of the clamping end 244 can abut against the limiting end 222 on the seat body 22 to prevent the pressing portion 241 from being pushed out of the seat body 22 by the first elastic portion 242. The limiting end 222 can cooperate with the clamping end 244 to facilitate the quick installation of the pressing member 24 and limit the moving stroke at the same time. The number of the limiting ends 222 can correspond to the number of the clamping ends 244. In this embodiment, the limiting ends 222 and the clamping ends 244 are provided on both sides of the pressing portion 241 along the second direction. In another embodiment, the limiting end 222 and the clamping end 244 are provided on one side of the pressing portion 241 along the second direction. It should be noted that the projections of the first elastic portion 242 and the pressing portion 241 along the first direction refer to the projections of the first elastic portion 242 and the pressing portion 241 along the first direction on a plane perpendicular to the first direction (i.e., the plane where the second direction is located).

[0225] Since the first elastic portion 242 is located on one side or both sides of the pressing portion 241 along the second direction, the first elastic portion 242 does not interfere with the movement of the pressing portion 241, so that the two pressing portions 241 can be arranged closer to each other, thereby reducing the width of the buckle 100 (in this application, the width can refer to the dimension in the moving direction of the pressing portion 241).

[0226] See Figures 3 to 4A , the seat body 22 can have a mounting portion 228. The mounting portion 228 can accommodate the first magnet 3. The cover body 21 can cooperate with the seat body 22 to seal the first magnet 3.

[0227] See Figure 9 , the male buckle assembly 1 can include a locking member 10 and a fixing member 15 that cooperate with each other. See Figure 4 and Figure 4A, the locking member 10 can form a cavity 14 for accommodating the second magnet 4. The fixing member 15 can be inserted into the cavity 14 to cooperate with the locking member 10 to seal the first magnet 3. The first magnet 3 and the second magnet 4 can be positioned opposite to each other. The first magnet 3 and the second magnet 4 can be arranged to attract each other. When the locking portion 10 enters the locking hole 226, due to the attraction between the first magnet 3 and the second magnet 4, the male buckle assembly 1 and the female buckle assembly 2 are connected together. Alternatively, the first magnet 3 and the second magnet 4 can be arranged to repel each other.

[0228] See Figures 3 to 6 , the locking member 25 can have an engaging portion 251, an abutting end 252 and a second elastic portion 253. When the male buckle assembly 1 engages with the female buckle assembly 2, the engaging portion 251 enters the locking hole 226 and enters the locking groove 12 on the locking portion 11 located in the locking hole 226. At this time, the engaging portion 251 abuts against the locking portion 11 to prevent the male buckle assembly 1 from disengaging from the female buckle assembly 2. The abutting end 252 is interlocked with the engaging portion 251, and the abutting end 252 can have an approximately triangular shape so as to form inclined surfaces on both sides. When the pressing portion 241 is actuated inwardly (as shown by the solid arrow in Figure 5 ), the pushing end 243 and the first elastic portion 242 press the inclined surfaces of the abutting end 252, so that the engaging portions 251 of the two locking members 25 move away from the locking hole 226 respectively (as shown by the dashed arrow in Figure 5 ). When the engaging portion 251 leaves the locking groove 12, the male buckle assembly 1 and the female buckle assembly 2 can be separated from each other by overcoming the attraction between the first magnet 3 and the second magnet 4, that is, the male buckle assembly 1 disengages from the female buckle assembly 2.

[0229] See Figures 7 to 9 , the second elastic portion 253 can have a bent shape and provide an elastic force for pushing the engaging portion 251 towards the locking hole 226 through elastic deformation. One end of the second elastic portion 253 is connected to the abutting end 252, and the other end of the second elastic portion 253 forms a connection hole 2531. The seat body 22 can form a connection post 227, and the connection hole 2531 is sleeved on the connection post 227. It should be noted that the connection can be achieved by providing a connection post at one of the other end of the second elastic portion 253 and the seat body 22 and a connection hole at the other. Therefore, in another embodiment, the other end of the second elastic portion 253 forms a connection post, and a connection hole is formed on the seat body 22. The connection hole 2531 can be sleeved on the connection post 227. The second elastic portion 253 can be located below the first elastic portion 242 ( Figure 4 or Figure 4A below), so that the movements of the first elastic portion 242 and the second elastic portion 253 do not interfere with each other, which can reduce the volume of the buckle 100.

[0230] The seat body 22 may have a first connection end 224 and a second connection end 225. The first connection end 224 may be formed on the left and right sides (both sides along the first direction) of the mounting portion 228, and the second connection end 225 may be formed on the upper and lower sides (both sides along the second direction) of the mounting portion 228. Both the first connection end 224 and the second connection end 225 may be formed in a convex shape.

[0231] In some embodiments, one end of the second elastic portion 253 may be connected to the central position of the abutting end 252 (i.e., aligned with the second connection end 225 along the second direction), and the abutting end 252 and the second connection end 225 may be disposed centrally with respect to the seat body 22. The connection hole 2531 and the connection post 227 may be aligned with the second connection end 225 along the second direction. That is, the two ends of the second elastic portion 253 along the second direction are aligned in the second direction and are both centrally disposed on the seat body 22. In this way, the second elastic portion 253 can apply an elastic force along the second direction without generating an elastic force in a direction other than the second direction.

[0232] A first notch 2411 may be formed on the pressing portion 241. A second notch 2511 may be formed on the engaging portion 251. The first notch 2411 may be movably engaged with the first connection end 224 to ensure the stability during the movement of the pressing member 24. The second notch 2511 may be movably engaged with the second connection end 225 to limit and guide the engaging portion 251 to ensure the stability of the locking process.

[0233] A first limiting portion 223 may be formed on the seat body 22. The first limiting portion 223 may be formed as two strip-shaped protrusions, which are parallel to each other and extend along the second direction (vertical direction). The locking member 25 may be positioned between the two strip-shaped protrusions, so that the first limiting portion 223 can limit the moving direction of the locking member 25. The first limiting portion 223 may guide the locking member 25 to ensure the stability of the movement and engagement. Two locking members 25 may be respectively disposed on the upper side and the lower side of the mounting portion 228, and each locking member 25 is respectively limited by the first limiting portion 223.

[0234] As Figure 3 and Figure 3A shown, the first elastic portion 242 is formed with two bending portions. As Figure 3 、 Figure 3A and Figure 5 visible, when the buckle 100 is in the locked state and the unlocked state, the intersection point between the two bending portions of the first elastic portion 242 will move along the second direction. Optionally, the first elastic portion 242 is formed with one, three or four bending portions. The shapes of the first elastic portion 242 listed above are only examples, and the present application does not limit the specific structure of the first elastic portion 242.

[0235] In the present application, the first direction may be staggered with the second direction. "Staggered" means that the first direction and the second direction are not parallel to each other, and may be approximately perpendicular or perpendicular to each other.

[0236] The second embodiment of the present application will be described below. Parts that are the same as those in the first embodiment will be omitted.

[0237] See Figure 10 and Figure 11 , in the second embodiment, the second connecting portion 23 may have only one through hole, but is not limited thereto. Alternatively, the second connecting portion 23 may have two through holes.

[0238] See Figure 12 and Figure 13 , in the second embodiment, the pressing member 24 and the locking member 25 are integrally formed. Alternatively, the pressing member 24 and the locking member 25 may be independent of each other and connected together. Specifically, the female buckle assembly 2 may have two pressing members 24 and two locking members 25. Any one of the two pressing members 24 may be integrally formed with one locking member 25. Each pressing member 24 may include a pressing portion 241, a first elastic portion 242, and a connecting arm 245. Each locking member 25 may include an engaging portion 251. The connecting arm 245 extends in the first direction.

[0239] See Figure 12 , the pressing portion 241 on the left side may be referred to as the first pressing portion, the pressing portion 241 on the right side may be referred to as the second pressing portion, the connecting arm 245 on the left side may be referred to as the first connecting arm (the first connecting arm is located above the locking portion 11), the connecting arm 245 on the right side may be referred to as the second connecting arm (the second connecting arm is located below the locking portion 11), the engaging portion 251 on the left side may be referred to as the second engaging portion, and the engaging portion 251 on the right side may be referred to as the first engaging portion. The first connecting arm may connect the first pressing portion and the first engaging portion, and the second connecting arm may connect the second pressing portion and the second engaging portion. When the two pressing portions 241 are pressed, the two engaging portions 251 on the opposite side may be respectively pushed by the two connecting arms 245 to move away from the locking portion 11.

[0240] A fixed end 229 may be formed on the seat body 22. The first end of the first elastic portion 242 is connected to the connecting arm 245, and the second end (positioning end 2421) of the first elastic portion 242 is fixed to the fixed end 229. The first magnet 3 may be fixedly disposed within the cover body 21.

[0241] One end of the connecting arm 245 close to the pressing part 241 connected thereto is formed with an extension part 2451. The extension part 2451 can extend from the connecting arm 245 along the second direction and towards the direction away from the locking hole 226. The first elastic part 242 is connected to the connecting arm 245 through the extension part 2451, so that the first end of the first elastic part 242 is connected to one end of the connecting arm 245 close to the pressing part 241. That is to say, the first end of the first elastic part 242 is connected to the extension part 2451. Specifically, the first elastic part 242 is connected to one end of the extension part 2451 away from the connecting arm 245. Specifically, in this embodiment, there are two extension parts 2451, which are respectively arranged on the two connecting arms 245 on the upper and lower sides and extend along the second direction towards the direction away from each other; the fixed end 229 and the extension part 2451 are arranged opposite to each other along the first direction, that is, the extension part 2451 is arranged at one end of the connecting arm 245 close to the pressing part 241 connected thereto, and the fixed end 229 is arranged on the seat body 22 close to the side where the connecting arm 245 is connected to the locking part 25.

[0242] In this embodiment, the extension part 2451 makes the projections of the pressing part 241 and the first elastic part 242 in the first direction not overlap, thereby reducing the layout space and further reducing the volume of the buckle 100. The fixed end 229 and the extension part 2451 are arranged opposite to each other, so that the first elastic part 242 is arranged along the first direction, and its elastic action can make the locking part 25 more easily kept in the locking position, so as to enhance the clamping strength between the clamping part 251 and the male buckle assembly 1, and realize the small volume and high strength of the buckle 100.

[0243] Secondly, the extension part 2451 has a limiting function. The extension part 2451 can abut against the seat body 22 so that the pressing part 24 and the locking part 25 are Figure 12 kept stable at the locking position shown.

[0244] In some other embodiments not shown, in addition to Figure 12 the position shown, the extension part 2451 can also be arranged at one end of the connecting arm 245 close to the locking part 25 connected thereto, and the fixed end 229 can be arranged on the seat body 22 close to the side where the connecting arm 245 is connected to the pressing part 241. That is to say, the directions of the extension part 2451 and the fixed end 229 can be interchanged. At this time, the first elastic part 242 can be a tensile elastic part.

[0245] In this embodiment, as Figure 12As shown, taking the pressing part 241 on the left side as an example, the connecting arm 245 and the first elastic part 242 connected to the pressing part 241 are respectively arranged on one side of the pressing part 241 along the second direction, that is, both the connecting arm 245 and the first elastic part 242 are arranged on the upper side of the left pressing part 241, but this is not limited thereto. In some other embodiments not shown, the first elastic part 242 and the connecting arm 245 connected to the pressing part 241 can be respectively arranged on opposite sides of the pressing part 241 along the second direction. For example, the connecting arm 245 is arranged on the upper side of the pressing part 241, and the lower side of the pressing part 241 can be connected to one end of the second elastic part 253 through the extension part 2451, and the other end of the second elastic part 253 is connected to the fixed end 229.

[0246] See Figure 12 and Figure 14 , a first limiting end 222a and a second limiting end 222b can be formed on the seat body 22. Specifically, two first limiting ends 222a and two second limiting ends 222b can be formed on the seat body 22. The first limiting end 222a and the second limiting end 222b can be respectively located on the inner sides of the two pressing parts 241 along the first direction.

[0247] The first limiting end 222a can extend inward from the outer edge of the seat body 22 along the first direction. The second limiting end 222b can extend inward from the outer edge of the seat body 22 along the first direction for a certain distance, and then extend a certain distance along the second direction towards the direction close to the locking part 11. The distance that the second limiting end 222b extends along the first direction can be longer than the distance that the first limiting end 222a extends along the first direction, but this application is not limited thereto.

[0248] The first limiting end 222a can cooperate with the extension part 2451. Specifically, the inner side of the first limiting end 222a along the first direction can abut against the outer side of the extension part 2451 along the first direction, so as to prevent the first elastic part 242 from pushing the pressing part 24 out of the cover body 21 and the seat body 22.

[0249] The second limiting end 222b can cooperate with the pressing part 241 and / or the connecting arm 245. Specifically, the second limiting end 222b includes a first limiting surface 222b1, and the pressing part 241 cooperates with the first limiting surface 222b1 for limiting; and / or, the second limiting end 222b includes a second limiting surface 222b2, and the connecting arm 245 cooperates with the second limiting surface 222b2 for limiting. See Figure 12 , first limiting surface 222b1 and second limiting surface 222b2 can be formed on both sides of the second limiting end 222b along the first direction. The first limiting surface 222b1 is arranged on the side close to the pressing part 241 along the first direction, and the second limiting surface 222b2 is arranged on the side close to the connecting arm 245 along the first direction. Taking Figure 12Taking the pressing member 24 on the left side in [description] as an example, the pressing portion 241 cooperates with the first limiting surface 222b1 to limit the moving stroke of one side of the pressing portion 241 ( Figure 12 the lower side in [description]) in the first direction; the limiting inclined surface 2452 on the connecting arm 245 cooperates with the second limiting surface 222b2 to limit the moving stroke of the other side of the pressing portion 241 ( Figure 12 the upper side in [description], that is, the side connected to the connecting arm 245 along the second direction) in the first direction. In some embodiments, only the first limiting surface 222b1 may be provided, and the first limiting surface 222b1 can abut against the inner side of the pressing portion 241 along the first direction, thereby limiting the maximum distance that the pressing portion 241 can be pressed. Optionally, only the second limiting surface 222b2 may also be provided, and the second limiting surface 222b2 can abut against the limiting inclined surface 2452 of the connecting arm 245, thereby limiting the maximum distance that the pressing portion 241 can be pressed. It can be understood that at least one of the first limiting surface 222b1 and the second limiting surface 222b2 having an abutting effect can limit the maximum distance that the pressing portion 241 can be pressed. Of course, when the first limiting surface 222b1 and the second limiting surface 222b2 respectively abut against the pressing portion 241 and the connecting arm 245, the forces on both sides of the pressing member 24 are balanced, so as to have better operating quality. The second limiting surface 222b2 can not only limit the connecting arm 245; in addition, the second limiting surface 222b2 can also avoid the connecting arm 245, so as to avoid interference with the connecting arm 245. In some other embodiments not shown, the second limiting surface 222b2 can also cooperate with the inclined surface on the engaging portion 251 to achieve limiting, that is, the limiting inclined surface 2452 can be provided on the engaging portion 251, and this is not limited thereto.

[0250] The two first limiting ends 222a can be arranged at the upper left and lower right parts of the buckle 100, and the two second limiting ends 222b can be arranged at the lower left and upper right parts of the buckle 100, but the present application is not limited thereto. Optionally, the two first limiting ends 222a can be arranged at the lower left and upper right parts of the buckle 100, and the two second limiting ends 222b can be arranged at the upper left and lower right parts of the buckle 100. Each pressing member 24 can be limited by a first limiting end 222a and a second limiting end 222b, so that both ends of each pressing member 24 moving in the first direction are limited, thereby preventing the pressing portion 241 from moving excessively in the first direction.

[0251] Referring to Figure 14 and Figure 15 , when the pressing portion 241 is actuated inwardly (as shown by the solid arrow in Figure 14 [description]), under the push of the connecting arm 245, the two engaging portions 251 respectively leave the locking holes 226 and the locking grooves 12 on the locking portion 11, so that the male buckle assembly 1 is disengaged from the female buckle assembly 2. During this process, the first elastic portion 242 is further compressed along the first direction (as shown inFigure 14 as shown by the dashed arrow in). When the pressing part 241 is released, the elastic force of the first elastic part 242 pushes the connecting arm 245 back to its original position, and then makes the two engaging parts 251 enter the locking hole 226 again, that is, the pressing member 24 and the locking member 25 move from Figure 14 the unlocking state shown to Figure 12 the locking state shown.

[0252] See Figure 12 and Figure 16 For, a first notch 2411 may be formed on each of the two engaging parts 251. A first protrusion 224a that cooperates with the first notch 2411 may be formed on the base body 22. The first notch 2411 and the first protrusion 224a extend along the first direction to ensure the stability during the movement of the pressing member 24 and the locking member 25.

[0253] The third embodiment of the present application will be described below. Parts that are the same as those in the second embodiment in the third embodiment will be omitted.

[0254] See Figure 17 and Figure 18 For, in the third embodiment, different from the second embodiment, both ends of the first elastic part 242 are respectively connected to the engaging part 251 and the pressing part 241 to apply a thrust force. One engaging part 251 is connected to one pressing part 241 through the first elastic part 242, and this engaging part 251 is connected to the other pressing part 241 through a connecting arm 245. In this way, the two pressing parts 241, the two connecting arms 245, and the two engaging parts 251 are formed into an integral structure through the first elastic part 242. Alternatively, the two pressing parts 241, the two connecting arms 245, the two engaging parts 251, and the first elastic part 242 may be separate components from each other. The end of each pressing part 241 may have a clamping end 244 that protrudes upward and / or downward respectively. A limiting end 222 may be formed on the base body 22. The limiting end 222 may protrude inward from the outer periphery of the base body 22. The limiting end 222 is located outside the clamping end 244 (that is, the clamping end 244 is located inside the limiting end 222), thereby limiting the maximum distance of the pressing part 241 moving outward and enabling the pressing part 241 to be stably blocked.

[0255] In this embodiment, both ends of each pressing part 241 along the second direction have clamping ends 244 (that is, there are a total of 4 clamping ends 244). Correspondingly, 4 limiting ends 222 may be formed on the base body 22.

[0256] In another embodiment, one end of each pressing part 241 along the second direction has a clamping end 244 (that is, there are a total of 2 clamping ends 244). Correspondingly, 2 limiting ends 222 may be formed on the base body 22. The number of clamping ends is not limited to this.

[0257] Specifically, the pressing member 24 may include two pressing portions 241 and two connecting arms 245 respectively located on both sides of the locking hole 226, and the locking member 25 may include two engaging portions 251 respectively located on both sides of the locking hole 226. As Figure 17 shown, the left pressing portion 241 may be referred to as the first pressing portion, the right pressing portion 241 may be referred to as the second pressing portion, the left connecting arm 245 may be referred to as the first connecting arm, the right connecting arm 245 may be referred to as the second connecting arm, the left engaging portion 251 may be referred to as the second engaging portion, and the right engaging portion 251 may be referred to as the first engaging portion. The first connecting arm may connect the first pressing portion and the first engaging portion, and the second connecting arm may connect the second pressing portion and the second engaging portion. The first elastic portion 242 may be located between the first pressing portion and the second engaging portion, and / or between the second pressing portion and the first engaging portion.

[0258] See Figure 18 , a first notch 2411 may be formed on each of the two engaging portions 251. A first protrusion 224a (not shown) that cooperates with the first notch 2411 may be formed on the base body 22. The first notch 2411 and the first protrusion 224a extend in the first direction to ensure the stability during the movement of the pressing member 24 and the locking member 25.

[0259] Specifically, one end of the first elastic portion 242 may be connected to the engaging portion 251, and the other end of the first elastic portion 242 may be disposed on the body of the pressing portion 241, or disposed on the clamping end 244, so that the projection of the first elastic portion 242 and the pressing portion 241 in the first direction do not overlap, thereby improving the space utilization rate.

[0260] In some other embodiments not shown, one end of the first elastic portion 242 may be connected to the connecting arm 245, and the other end of the first elastic portion 242 may be connected to the body of the pressing portion 241, or disposed on the clamping end 244.

[0261] The fourth embodiment of the present application will be described below. The parts that are the same as those in the third embodiment in the fourth embodiment will be omitted.

[0262] See Figure 19 and Figure 20, the pressing member 24 and the locking member 25 are integrally formed. Alternatively, the pressing member 24 and the locking member 25 may be separate components from each other and can be connected together. The pressing member 24 is provided with a connecting arm 245 along a first direction. The pressing portion 241 and the locking member 25 are connected to each other through the connecting arm 245. Among them, there are two pressing members 24, and each pressing member 24 is respectively provided with a connecting arm 245, and the two connecting arms 245 are respectively located on the upper and lower sides of the two pressing portions 241. The locking member 25 may be composed of two engaging portions 251. The pressing portion 241 on the left side of the locking portion 11 and the engaging portion 251 on the right side of the locking portion 11 are connected through the connecting arm 245 above the locking portion 11, and the pressing portion 241 on the right side of the locking portion 11 and the engaging portion 251 on the left side of the locking portion 11 are connected through the connecting arm 245 below the locking portion 11. When the two pressing portions 241 are pressed, the two engaging portions 251 on the opposite side can be respectively pushed by the connecting arm 245 to move away from the locking portion 11. In the fourth embodiment, the connecting arm 245 may be L-shaped.

[0263] In the fourth embodiment, both ends of each of the two pressing portions 241 respectively have protruding clamping ends 244. The first elastic portion 242 is located between the two clamping ends 244 on the same side of the two pressing portions 241 along a second direction, and both ends of the first elastic portion 242 are respectively connected to the two clamping ends 244. The first elastic portion 242 can exert a thrust force on the clamping end 244. A plurality of limiting ends 222 may be formed on the seat body 22, and the clamping end 244 may be located inside the plurality of limiting ends 222. The outer side of the clamping end 244 can abut against the limiting end 222 to prevent the pressing portion 241 from being pushed out of the seat body 22 by the first elastic portion 242. The limiting end 222 can cooperate with the clamping end 244 to facilitate the rapid installation of the pressing member 24 and at the same time limit the moving stroke. In this embodiment, the first elastic portion 242 may have one bend, but is not limited thereto.

[0264] The setting of the clamping end 244 can not only perform a limiting function. The clamping end 244 extends in a direction away from the pressing portion 241 along the second direction, but also enables the first elastic portion 242 and the pressing portion 241 not to overlap in the projection in the first direction, thereby reducing the volume of the buckle 100.

[0265] The following will describe the fifth embodiment of the present application. Parts that are the same as those in the fourth embodiment in the fifth embodiment will be omitted.

[0266] See Figure 23, the pressing member 24 and the locking member 25 are integrally formed. Alternatively, the pressing member 24 and the locking member 25 can be separate components from each other and can be connected together. The pressing member 24 is provided with a connecting arm 245 in a first direction. The pressing portion 241 and the locking member 25 are connected to each other through the connecting arm 245. Among them, there are two pressing members 24, each pressing member 24 is respectively provided with a connecting arm 245, and the two connecting arms 245 are respectively located on the upper and lower sides of the two pressing portions 241. The locking member 25 can be composed of two engaging portions 251. The pressing portion 241 on the left side of the locking portion 11 and the engaging portion 251 on the right side of the locking portion 11 are connected through the connecting arm 245 above the locking portion 11, and the pressing portion 241 on the right side of the locking portion 11 and the engaging portion 251 on the left side of the locking portion 11 are connected through the connecting arm 245 below the locking portion 11. When the two pressing portions 241 are pressed, the two engaging portions 251 on the opposite side can be respectively pushed by the connecting arm 245 to move away from the locking portion 11 in a direction away from the locking portion 11.

[0267] The first elastic portion 242 can be respectively arranged on the upper and lower sides of the two pressing portions 241 and is located between the two pressing portions 241. Clamping ends 244 can be formed at both the upper and lower ends of each pressing portion 241. The clamping end 244 extends away from the pressing portion 241 in a second direction. The first elastic portion 242 extends bendably in the first direction to have elasticity. Both ends of the first elastic portion 242 are respectively connected to a clamping end 244. The first elastic portion 242 can apply an outward thrust to the two pressing portions 241 in the first direction. In this embodiment, the two pressing portions 241, the first elastic portion 242, the two clamping ends 244, and the two engaging portions 251 can be integrally formed. In another embodiment, the two pressing portions 241, the first elastic portion 242, the two clamping ends 244, and the two engaging portions 251 can be separate components from each other.

[0268] Since the clamping end 244 extends away from the pressing portion 241 in the second direction, and the first elastic portion 242 is arranged in the first direction between the two clamping ends 244, the projections of the first elastic portion 242 and the pressing portion 241 in the first direction do not overlap each other, thereby reducing the volume of the buckle 100.

[0269] Refer to Figures 21 to 26 , in the fifth embodiment, a first notch 2411 can be formed on each of the two engaging portions 251. A second notch 2511 can be formed on the first elastic portion 242. A first protrusion 224a that cooperates with the first notch 2411 and a second protrusion 225a that cooperates with the second notch 2511 can be formed on the seat body 22. The directions of the first protrusion 224a and the second protrusion 225a are staggered from each other. The first protrusion 224a extends in the first direction to ensure the smoothness during the horizontal movement of the engaging portion 251. The second protrusion 225a extends in the second direction to ensure the smoothness during the vertical deformation movement of the first elastic portion 242. AsFigure 23 As shown, in the fifth embodiment, the first elastic part 242 may have two bending parts, but is not limited thereto.

[0270] A second limiting part 223a may be formed on the seat body 22. The second limiting part 223a is formed as two strip-shaped protrusions, and the two strip-shaped protrusions are parallel to each other and extend along the first direction to limit the moving direction of the two connecting arms 245, that is, the two connecting arms 245 and the two pressing parts 241 can only move along the first direction. The second limiting part 223a may be connected to the second protrusion 225a. As Figure 26 shown, the second limiting part 223a and the second protrusion 225a may be connected to each other to form a T-shaped arrangement. Refer to Figure 24 , the second limiting part 223a can limit the compressed state of the first elastic part 242 by abutting against the first elastic part 242.

[0271] The cover body 21 and the seat body 22 can be snap-fitted and fixed to each other. Specifically, as Figure 22 and Figure 26 shown, elastic fingers 202 may be formed on the cover body 21. A card slot 201 may be formed on the seat body 22. The elastic fingers 202 can cooperate with the card slot 201 to fix the cover body 21 and the seat body 22 to each other.

[0272] In another embodiment not shown, card slots 201 and elastic fingers 202 may be respectively formed on the seat body 22 and the cover body 21. In this way, the card slot 201 and the elastic fingers 202 on the cover body 21 can cooperate with the elastic fingers 202 and the card slot 201 on the seat body 22 respectively to fix the cover body 21 and the seat body 22 to each other.

[0273] The above structures of the cover body 21 and the seat body 22 can be applied to other embodiments, but the present application does not limit the connection manner of the cover body 21 and the seat body 22.

[0274] The sixth embodiment of the present application will be described below. Parts that are the same as those in the fifth embodiment will be omitted.

[0275] Refer to Figure 28 , the buckle 100 may include a male buckle assembly 1 and a female buckle assembly 2 (for the overall structure of the female buckle assembly 2, refer to Figure 2 ). The female buckle assembly 2 may include a cover body 21, a seat body 22, a mounting part 228, and a pressing member 24. A second connecting part 23 for connecting with a webbing may be formed on the seat body 22. A locking member 25 is integrally formed on the pressing member 24 (refer to Figure 29 ). Alternatively, the locking member 25 and the pressing member 24 may be independent components of each other and may be connected together.

[0276] Refer to Figure 32, a first magnet receiving portion 211 may be formed on the cover body 21. The first magnet receiving portion 211 may be formed in a generally cylindrical shape. A rib 212 may be formed on the outer side of the first magnet receiving portion 211. The rib 212 may extend along the circumferential direction of the first magnet receiving portion 211. The rib 212 may cooperate with the mounting portion 228 such that the mounting portion 228 can be firmly fastened to the outer side of the first magnet receiving portion 211 to jointly form a space for receiving the first magnet 3. The length of the extension of the rib 212 may not exceed half of the circumference of the first magnet receiving portion 211, but the present application is not limited thereto. Two ribs 212 may be symmetrically formed on the first magnet receiving portion 211, but the present application is not limited thereto. A rib portion 213 may also be formed on the outer side of the first magnet receiving portion 211. The rib portion 213 may extend along the axial direction of the first magnet receiving portion 211. The rib portion 213 may be used to guide the process of fastening the mounting portion 228 to the first magnet receiving portion 211. Two rib portions 213 may be symmetrically formed on the first magnet receiving portion 211, but the present application is not limited thereto.

[0277] Continue to refer to Figure 28 , the mounting portion 228 may cooperate with the cover body 21 to accommodate and seal the first magnet 3. The mounting portion 228 may be formed in a substantially circular shape. The mounting portion 228 may be formed with a fourth limiting portion 2281 and a recess 2282. The fourth limiting portion 2281 may be formed as an arm extending radially outward from the outer surface of the mounting portion 228. The fourth limiting portion 2281 may be linearly extended. The fourth limiting portion 2281 may limit the movement of the limiting engaging portion 251 (which will be described in detail below). The recess 2282 may be formed as a depression extending radially outward from the inner surface of the mounting portion 228. The mounting portion 228 may be formed with two fourth limiting portions 2281 opposite to each other, but the present application is not limited thereto. The mounting portion 228 may be formed with two recesses 2282 opposite to each other, but the present application is not limited thereto. When the cover body 21 cooperates with the mounting portion 228, each rib portion 213 may be inserted into the corresponding recess 2282 such that the recess 2282 guides the process of combining the mounting portion 228 with the cover body 21. Due to the cooperation between the recess 2282 and the rib portion 213, the extending direction of the fourth limiting portion 2281 after the mounting portion 228 is mounted to the cover body 21 can be determined.

[0278] Although in this embodiment, the fourth limiting portion 2281 is provided on the mounting portion 228, in another embodiment, the fourth limiting portion 2281 may be provided on the cover body 21.

[0279] Refer to Figure 27 and Figure 28, the fourth limiting part 2281 extends horizontally (e.g., the first direction) outward from both sides of the installation part 228. The fourth limiting part 2281 can be located above the engaging part 251 to limit the movement of the engaging part 251 in the vertical direction (the third direction), thereby enhancing the stability of the snap - locking between the male buckle assembly 1 and the female buckle assembly 2.

[0280] See Figure 29 and Figure 30 , the pressing member 24 can be provided with a connecting arm 245 along the first direction. The pressing part 241 and the locking member 25 are connected to each other through the connecting arm 245. There can be two pressing members 24, and each pressing member 24 is respectively provided with a connecting arm 245. The two connecting arms 245 are respectively located on the upper and lower sides of the two pressing parts 241 (see Figure 29 ). See Figure 29 , the locking member 25 can be composed of two engaging parts 251. The pressing part 241 on the left side of the locking part 11 is connected to the engaging part 251 on the right side of the locking part 11 through the connecting arm 245 above the locking part 11, and the pressing part 241 on the right side of the locking part 11 is connected to the engaging part 251 on the left side of the locking part 11 through the connecting arm 245 below the locking part 11. When the two pressing parts 241 are pressed, the two engaging parts 251 on the opposite sides can be respectively pushed by the connecting arm 245 to move away from the locking part 11.

[0281] The first elastic part 242 can be respectively arranged on the upper and lower sides of the two pressing parts 241 and is located between the two pressing parts 241. Clamping ends 244 can be formed at both the upper and lower ends of each pressing part 241. The clamping end 244 extends away from the pressing part 241 along the second direction. The first elastic part 242 extends bendably along the first direction to have elasticity. Both ends of the first elastic part 242 are respectively connected to a clamping end 244. The first elastic part 242 can be formed in a shape similar to an "M", that is, one end of the first elastic part 242 to the other end undergoes three bends (or two bending parts 2423 are formed). One of the first elastic part 242 and the seat body 22 can be provided with a positioning post 2422. The other of the first elastic part 242 and the seat body 22 can be provided with a positioning hole 223b. The positioning post 2422 can be located within the positioning hole 223b. See 29 and Figure 30 , a positioning post 2422 can be formed at the second bending part of the first elastic part 242, and the seat body 22 can be provided with a positioning hole 223b. The positioning post 2422 can be located at the middle position of the length of the first elastic part 242, such that there is a bending part 2423 on each side of the positioning post 2422. The positioning post 2422 can be downward (towards Figure 27extends downward in the vertical direction shown, so as to exceed the dimension of the first elastic portion 242 in the vertical direction. It should be noted that in other embodiments not shown, one end to the other end of the first elastic portion 242 may be bent multiple times (for example, more than three times), and the present application does not limit this. Optionally, a positioning post 2422 or a positioning hole 223b may be formed at the bending position of the first elastic portion 242. The number of the positioning post 2422 or the positioning hole 223b is not limited, and one, two or more can be set according to the number of bends.

[0282] See Figure 31 , a locking hole 226 may be formed on the seat body 22. A second limiting portion 223a may be formed on the seat body 22. The second limiting portion 223a may be formed as two strip-shaped protrusions. For the specific structure of the second limiting portion 223a, reference may be made to the description of the fifth embodiment. A positioning hole 223b may be formed on the side of the second limiting portion 223a away from the locking hole 226. Two positioning holes 223b may be formed on the seat body 22. Each positioning post 2422 may be inserted into the corresponding positioning hole 223b (see Figure 30 and Figure 31 ). The positioning hole 223b may limit the movement of the positioning post 2422, so as to make the elastic deformation process of the first elastic portion 242 more stable. In other words, since the middle part of the first elastic portion 242 is fixedly connected to the seat body 22, the smoothness of the elastic support of the two pressing portions 241 in the horizontal direction can be ensured.

[0283] See Figure 29 and Figure 31, a third limiting portion 223c may also be formed on the seat body 22. The third limiting portion 223c may be parallel to the second limiting portion 223a. The third limiting portion 223c is located between the second limiting portion 223a and the locking hole 226. The distance between the third limiting portion 223c and the second limiting portion 223a may correspond to the width of the connecting arm 245. When the pressing portion 241 is pressed, the connecting arm 245 moves between the third limiting portion 223c and the second limiting portion 223a. The limiting effects of the third limiting portion 223c and the second limiting portion 223a on the connecting arm 245 make the movement of the connecting arm 245 more stable and prevent the shaking when the connecting arm 245 is engaged. The third limiting portion 223c may be formed on the upper side and the lower side of the locking hole 226. The length of the third limiting portion 223c in the first direction may be less than the length of the second limiting portion 223a in the first direction, but the present application is not limited thereto. The third limiting portion 223c may be disposed offset in the first direction relative to the second limiting portion 223a to avoid interfering with the position where the engaging portion 251 is connected to the connecting arm 245. The seat body 22 and the fifth limiting portion 214 jointly define the movement of the connecting arm 245 in the vertical direction, and the second limiting portion 223a and the third limiting portion 223c jointly define the movement of the connecting arm 245 in the second direction, so that the connecting arm 245 can move more smoothly in the first direction, and further, when the pressing portion 241 is pressed, the engaging portion 251 can be more smoothly pushed to unlock. For other structures of the seat body 22, reference may be made to the fifth embodiment.

[0284] In the present application, the first direction and the second direction are perpendicular to each other and jointly define a horizontal plane (i.e., both the first direction and the second direction belong to the horizontal direction), and the vertical direction (the third direction) is perpendicular to the horizontal plane, but the present application is not limited thereto.

[0285] Continue to refer to Figure 30 and Figure 33 , the pressing portion 241 may have an elongated groove 2413. The elongated groove 2413 may have a third notch 2412. The elongated groove 2413 and the third notch 2412 may both be formed on the inner side of the pressing portion 241 (the side facing the other pressing portion 241). The dimension of the elongated groove 2413 in the second direction is greater than the dimension of the third notch 2412 in the second direction. The bottom of the elongated groove 2413 and the third notch 2412 may have a stop portion 2414. The elongated groove 2413 may cooperate with the engaging portion 251 to provide an avoidance space for the unlocking of the engaging portion 251. Each fourth limiting portion 2281 may be inserted into the corresponding third notch 2412 to limit the stroke of the pressing portion 241 moving in the first direction through the stop portion 2414. The third notch 2412 may cooperate with the fourth limiting portion 2281 to prevent interference with the movement of the pressing member 24.

[0286] Refer to Figure 32 and Figure 34, a fifth limiting portion 214 may be formed on the female buckle assembly 2 (specifically, for example, the cover body 21). The fifth limiting portion 214 may extend in the vertical direction (the third direction) to prevent the connecting arm 245 from moving in the vertical direction, so that the movement of the connecting arm 245 in the horizontal direction (specifically, the first direction) is smoother. Two fifth limiting portions 214 may be symmetrically formed on the cover body 21. The two fifth limiting portions 214 may be respectively located on both sides of the magnet accommodating portion 211. The fifth limiting portion 214 may have an annular shape, and there may be reinforcing ribs inside the annulus, but the present application is not limited thereto.

[0287] The seventh embodiment of the present application will be described below.

[0288] Refer to Figures 35 to 39 , the buckle 100s of the seventh embodiment of the present application may include a male buckle assembly 1s and a female buckle assembly 2s. The male buckle assembly 1s may be partially inserted into the female buckle assembly 2s to be locked by the female buckle assembly 2s. The male buckle assembly 1s may be connected with a belt 5s. The belt 5s may fix the male buckle assembly 1s to the corresponding parts of other possible articles such as baby carriers, restraint straps of baby strollers, restraint straps of dining chairs, backpacks, etc. The male buckle assembly 1s may also have a protruding locking portion 11s (refer to Figure 44 ). As Figure 44 shown, a clamping groove 12s may be formed on the locking portion 11s. The clamping groove 12s may surround one circle of the columnar locking portion 11s, but is not limited thereto. Although Figure 44 shows that the male buckle assembly 1s is formed as a circle, in an embodiment not shown, the male buckle assembly 1s may be formed as a rectangle or other shapes. The female buckle assembly 2s may have a locking hole 226s (refer to Figure 37 ). The locking portion 11s may be inserted into the locking hole 226s along the third direction Z so that the male buckle assembly 1s and the female buckle assembly 2s are connected to each other.

[0289] Refer to Figure 35 , Figure 37 and Figure 41 , the female buckle assembly 2s may include a cover body 21s, a seat body 22s, a second connecting portion 23s, a pressing member 24s and a locking member 25s which are combined with each other.

[0290] The cover body 21s and the seat body 22s may be fixed to each other and at least partially surround the pressing member 24s and the locking member 25s. Specifically, the cover body 21s and the seat body 22s may be combined with each other along the third direction Z. In the present application, the third direction Z may be perpendicular to the first direction X and the second direction Y. The dimension of the cover body 21s in the third direction Z may be smaller than the dimension of the seat body 22s in the third direction Z. The cover body 21s and the seat body 22s may be combined with each other by ultrasonic welding (which will be described in detail below). Ultrasonic welding is a process of combining two or more objects together through high-frequency vibration.

[0291] One side of the female buckle assembly 2s may have a second connecting portion 23s. The second connecting portion 23s may be connected to a webbing (not shown).

[0292] The pressing member 24s may include a pressing portion 241s, a first elastic portion 242s, and a connecting arm 245s. Each of the two sides of the female buckle assembly 2s may have a pressing portion 241s. The two pressing portions 241s may be symmetrically arranged on both sides of the seat body 22s along the first direction X and exposed outside the space surrounded by the cover body 21s and the seat body 22s. The pressing portion 241s is used to operate the locking and unlocking of the male buckle assembly 1s and the female buckle assembly 2s. Openings for the pressing portions 241s to pass through may be formed on both sides of the cover body 21s and the seat body 22s.

[0293] The pressing member 24s may be interlocked with the locking member 25s. The pressing member 24s may actuate the locking member 25s so that the locking member 25s can operably engage with the locking portion 11s of the male buckle assembly 1s. The locking member 25s may engage with the locking portion 11s at the locking hole 226s. The pressing portion 241s may be pressed along the first direction X to push the locking member 25s to disengage from the locking portion 11s along the first direction X. Optionally, the pressing member 24s and the locking member 25s are integrally formed, but not limited thereto. Optionally, the pressing member 24s and the locking member 25s may be independent components and may be connected together.

[0294] The pressing member 24s may be integrally formed. Alternatively, the pressing member 24s may be composed of a plurality of independent components. Both sides of the two pressing portions 241s of the pressing member 24s along the second direction Y are respectively connected to the two ends of the two first elastic portions 242s, so that the two pressing portions 241s and the two first elastic portions 242s form a ring, but the present application is not limited thereto. The projections of the first elastic portion 242s and the pressing portion 241s along the first direction X do not overlap each other. The first elastic portion 242s may have a curved shape and provide an elastic force to push the two pressing portions 241s away from each other through elastic deformation. The two connecting arms 245s respectively extend from one side of the two pressing portions 241s along the first direction X. Each connecting arm 245s is connected to a locking member 25s at the end far from the pressing portion 241s. The two connecting arms 245s extend inside the two first elastic portions 242s. The inner side of the locking member 25s may be arc-shaped to facilitate locking the cylindrical locking portion 11s.

[0295] In other embodiments, the pressing member 24s may include one pressing portion 241s and / or one connecting arm 245s. In other embodiments, the female buckle assembly 2s may include one locking member 25s. In other embodiments, the pressing member 24s may include one first elastic portion 242s.

[0296] The first elastic part 242s may have two bending parts 2423s. There may be a positioning post 2422s between the two bending parts 2423s. Specifically, the first elastic part 242s may be composed of two bending parts 2423s and a positioning post 2422s. The first elastic part 242s may be formed in a shape similar to the letter "M", but is not limited thereto.

[0297] See Figure 40 and Figure 43 , a first limiting part 223as may be formed on the seat body 22s. The first limiting part 223as may be formed as two strip-shaped protrusions. The two strip-shaped protrusions are parallel to each other and extend along the first direction X to limit the moving direction of the two connecting arms 245s, that is, to make the two connecting arms 245s and the two pressing parts 241s can only move along the first direction X. The first limiting part 223as can limit the compressed state of the first elastic part 242s by abutting against the first elastic part 242s. A positioning hole 223bs may be formed on the side of the first limiting part 223as away from the locking hole 226s. Two positioning holes 223bs may be formed on the seat body 22s. Each positioning post 2422s may extend along the third direction Z, and one side along the third direction Z is inserted into the corresponding positioning hole 223bs (see Figure 40 and Figure 41 ). The positioning hole 223bs can limit the movement of the positioning post 2422s, so that the elastic deformation process of the first elastic part 242s is more stable. In other words, since the middle part of the first elastic part 242s is fixedly connected to the seat body 22s, the smoothness of the elastic support of the two pressing parts 241s in the horizontal plane (the plane formed by the first direction X and the second direction Y) can be ensured.

[0298] A second limiting portion 223cs may also be formed on the seat body 22s. The second limiting portion 223cs may be parallel to the first limiting portion 223as. The second limiting portion 223cs may be located at the edge of the locking hole 226s. The distance between the second limiting portion 223cs and the first limiting portion 223as may correspond to the width of the connecting arm 245s. When the pressing portion 241s is pressed, the connecting arm 245s slides between the second limiting portion 223cs and the first limiting portion 223as. The limiting effect of the second limiting portion 223cs and the first limiting portion 223as on the connecting arm 245s makes the movement of the connecting arm 245s more stable. Two second limiting portions 223cs may be respectively formed on both sides of the locking hole 226s along the second direction Y. The length of the second limiting portion 223cs along the first direction X may be less than the length of the first limiting portion 223as along the first direction X, but the present application is not limited thereto. The second limiting portion 223cs may be arranged offset along the first direction X relative to the first limiting portion 223as to avoid interfering with the position where the engaging member 25s is connected to the connecting arm 245s. Protrusions 224as may be respectively formed on both sides of the locking hole 226s along the first direction X. The protrusions 224as may be parallel to the second limiting portion 223cs. The protrusions 224as may cooperate with the locking member 25s to guide the movement of the locking member 25s along the first direction X.

[0299] See Figure 40 and Figure 42 , a protruding connecting post 227s may be formed on the inner side of the seat body 22s. A protruding connecting cylinder 215s may be formed on the inner side of the cover body 21s. In another embodiment, a protruding connecting cylinder 215s may be formed on the inner side of the seat body 22s, while a protruding connecting post 227s may be formed on the inner side of the cover body 21s. When the seat body 22s and the cover body 21s are combined, the connecting post 227s is inserted into the connecting cylinder 215s, and then the connecting post 227s and the connecting cylinder 215s are fixed together by ultrasonic welding. The ultrasonic welding may be formed on the connecting post 227s and the connecting cylinder 215s. Optionally, the ultrasonic welding may also be formed in the surrounding area of the connecting post 227s and the connecting cylinder 215s. For example, it may be formed in the circumferential edge area where the seat body 22s and the cover body 21s cooperate. The present application is not limited to the setting positions described in this case.

[0300] Through ultrasonic welding, a smaller gap may be formed between the seat body 22s and the cover body 21s. The ultrasonic welding may ensure that when a torque of 100 N (Newton) is applied to the buckle 100, there will be no opening greater than 0.5 mm.

[0301] In one embodiment, the seat body 22s has connecting posts 227s on both sides along the second direction Y. Specifically, the seat body 22s may have two connecting posts 227s. The cover body 21s may have two connecting cylinders 215s corresponding to the two connecting posts. The two connecting posts 227s are respectively formed on both sides of the locking member 25s along the second direction Y. Correspondingly, the two connecting cylinders 215s are respectively formed on both sides of the locking member 25s along the second direction Y.

[0302] See Figure 42 , a first magnet accommodating portion 211s may be formed on the cover body 21s. The first magnet accommodating portion 211s may be formed in a generally cylindrical shape. A rib 212s may be formed on the outer side of the first magnet accommodating portion 211s. The rib 212s may extend along the circumferential direction of the first magnet accommodating portion 211s. The first magnet accommodating portion 211s may be used to accommodate a magnet. The length of the extension of the rib 212s may not exceed half of the circumference of the first magnet accommodating portion 211s, but the present application is not limited thereto. Two ribs 212s may be symmetrically formed on the first magnet accommodating portion 211s, but the present application is not limited thereto. A rib portion 213s may also be formed on the outer side of the first magnet accommodating portion 211s. The rib portion 213s may extend along the axial direction of the first magnet accommodating portion 211s. Two rib portions 213s may be symmetrically formed on the first magnet accommodating portion 211s, but the present application is not limited thereto.

[0303] A fifth limiting portion 214s may be formed on the cover body 21s. The fifth limiting portion 214s may extend along the third direction Z to prevent the connecting arm 245s from moving along the third direction Z, so as to make the movement of the connecting arm 245s along the first direction X smoother. Two fifth limiting portions 214s may be symmetrically formed on the cover body 21s. The two fifth limiting portions 214s may be respectively located on both sides of the first magnet accommodating portion 211s along the second direction Y. The fifth limiting portion 214s may have an annular shape, and there may be a reinforcing rib 219s inside the annulus, but the present application is not limited thereto.

[0304] See Figure 42 and Figure 43, one of the cover body 21s and the base body 22s may have elastic fingers (snap arms) 218s, and the other of the cover body 21s and the base body 22s may have a card slot 228s. In this embodiment, the cover body 21s may have elastic fingers 218s, and the base body 22s may have a card slot 228s. In another embodiment, the cover body 21s may have a card slot 228s, and the base body 22s may have elastic fingers 218s. The elastic fingers 218s cooperate with the card slot 228s to engage the cover body 21s with the base body 22s or provide at least a part of the binding force between the cover body 21s and the base body 22s. Optionally, the elastic fingers 218s and the card slot 228s are ultrasonically welded. The cover body 21s may have four elastic fingers 218s, and the base body 22s may correspondingly have four card slots 228s, but the present application is not limited thereto.

[0305] Both ends of the cover body 21s along the second direction Y may respectively have edge docking portions 217s. That is to say, the edge docking portions 217s are formed at the outer peripheral edge of the cover body 21s. The edge docking portions 217s may be formed in a long strip shape extending along the first direction X, but the present application is not limited thereto. Optionally, the edge docking portions 217s and the outer peripheral edge of the base body 22s are ultrasonically welded.

[0306] The position on the cover body 21s corresponding to the positioning posts 2422s may have inner docking portions 216s. That is to say, there is one inner docking portion 216s on each side of the first magnet accommodating portion 211s along the second direction Y. The positions of the docking portions 216s correspond to those of the positioning posts 2422s, and the two are in abutting cooperation, which can make the positioning posts 2422s better cooperate with the first limiting portion 223as to limit the movement of the positioning posts 2422s in the third direction Z and prevent the positioning posts 2422s from detaching from the first limiting portion 223as, and at the same time can enhance the strength of the cover body 21s. Optionally, one side of each positioning post 2422s facing the cover body 21s along the third direction Z may be ultrasonically welded to the inner docking portion 216s, and / or the positioning posts 2422s and the first limiting portion 223as are ultrasonically welded.

[0307] When it is necessary to lock the male buckle assembly 1s with the female buckle assembly 2s, insert the male buckle assembly 1s into the female buckle assembly 2s along the third direction Z, so that the locking portion 11s enters the locking hole 226s. When the locking portion 11s enters the locking hole 226s, the locking portion 11s moves along the third direction Z to push the locking member 25s to move to both sides along the first direction X, thereby allowing the locking portion 11s to further enter the locking hole 226s. Then, the locking member 25s returns to the non-pushed position under the elastic force of the first elastic portion 242s and enters the engaging groove on the locking portion 11s, thereby realizing the locking. That is to say, the first elastic portion 242s can provide an elastic force that makes the locking member 25s tend to be locked with the male buckle assembly 1s.

[0308] When it is necessary to unlock the male buckle assembly 1s from the female buckle assembly 2s, press the two pressing portions 241s simultaneously, so that the locking member 25s moves to both sides along the first direction X and leaves the engaging groove 12s on the locking portion 11s. Then move the male buckle assembly 1s along the third direction Z away from the locking hole 226s, thereby realizing the separation of the male buckle assembly 1s from the female buckle assembly 2s.

[0309] The following will describe the eighth embodiment of the present application.

[0310] See Figures 45 to 47 , the buckle 100s of the eighth embodiment of the present application may include a male buckle assembly 1s and a female buckle assembly 2s. The male buckle assembly 1s can be partially inserted into the female buckle assembly 2s to be locked by the female buckle assembly 2s. The male buckle assembly 1s can be connected with a belt 5s. The belt 5s can fix the male buckle assembly 1s to the corresponding parts of other possible supplies such as baby carriers, restraint straps of baby strollers, restraint straps of dining chairs, backpacks, etc.

[0311] See Figure 45 and Figure 48 , the female buckle assembly 2s may include a cover body 21s, a seat body 22s, a second connecting portion 23s, a pressing member 24s (refer to Figure 41 ) and a locking member 25s.

[0312] See Figures 47 to 47B , the female buckle assembly 2s may have a mounting portion 228s. The mounting portion 228s may include a first magnet receiving portion 211s. The first magnet receiving portion 211s can accommodate the first magnet 3s. The cover body 21s can cooperate with the mounting portion 228s to seal the first magnet 3s.

[0313] The first magnet receiving portion 211s can be centered on the mounting portion 228s. The first magnet receiving portion 211s can be formed as a cylindrical wall, and the inner side of the first magnet receiving portion 211s may have ribs 2285s. The ribs 2285s can be used to fix the first magnet 3s. The inner side of the first magnet receiving portion 211s may have four uniformly distributed ribs 2285s, but the present application is not limited thereto.

[0314] The female buckle assembly 2s may include a pressing member 24s. The pressing member 24s may include a pressing portion 241s, a first elastic portion 242s, and a connecting arm 245s. The first elastic portion 242s may include a positioning post 2422s. The pressing portion 241s is connected to the engaging portion 251s through the connecting arm 245s. For the specific structure of the pressing member 24s, reference can be made to the pressing member 24s in the seventh embodiment.

[0315] On both sides of the mounting part 228s along the first direction X, there may be fourth limiting parts 2281s respectively. The fourth limiting part 2281 may have a "T" - shaped cross - section. That is to say, the fourth limiting part 2281s can be formed as a flat plate with ribs formed on it. The fourth limiting part 2281s can limit the movement of the engaging part 251s in the third direction Z.

[0316] On both sides of the mounting part 228s along the second direction Y, there may be holes 2283s respectively. The holes 2283s can be inserted into the fifth limiting parts 214s on the cover body 21s, so as to position the mounting part 228s relative to the cover body 21s.

[0317] On the side of the mounting part 228s where the hole 2283s are away from the first magnet receiving part 211s, there may be grooves 2284s. The grooves 2284s can avoid the positioning posts 2422s on the first elastic parts 242s of the pressing part 24s.

[0318] See Figure 48 and Figure 49 On the base body 22s, a first limiting part 223as may be formed. The pressing part 24s may include two pressing parts 241s, two first elastic parts 242s and two connecting arms 245s. The first limiting part 223as can be formed as two strip - shaped protrusions. These two strip - shaped protrusions are parallel to each other and extend along the first direction X to limit the moving direction of the two connecting arms 245s, that is, to make the two connecting arms 245s and the two pressing parts 241s can only move along the first direction X. The first limiting part 223as can limit the compressed state of the first elastic part 242s by abutting against the first elastic part 242s.

[0319] On the base body 22s, a second limiting part 223cs may also be formed. The second limiting part 223cs may be parallel to the first limiting part 223as. The female - buckle assembly 2s may have a locking hole 226s. The locking hole 226s may be located at the center of the base body 22s. The second limiting part 223cs may be located at the edge of the locking hole 226s. The distance between the second limiting part 223cs and the first limiting part 223as may correspond to the width of the connecting arm 245s. When the pressing part 241s is pressed, the connecting arm 245s slides between the second limiting part 223cs and the first limiting part 223as. The limiting effect of the second limiting part 223cs and the first limiting part 223as on the connecting arm 245s makes the movement of the connecting arm 245s more stable. Specifically, two second limiting parts 223cs may be formed on the base body 22s. The two second limiting parts 223cs may be respectively formed on both sides of the locking hole 226s along the second direction Y. The second limiting part 223cs may be arranged offset along the first direction X relative to the first limiting part 223as to avoid interfering with the position where the engaging part 25s is connected to the connecting arm 245s.

[0320] On a side of the first limiting portion 223as away from the locking hole 226s, a positioning hole 223bs may be formed. Two positioning holes 223bs may be formed on the seat body 22s. Each first elastic portion 242s may have a positioning post 2422s. Each positioning post 2422s may extend along the third direction Z, and the side closer to the positioning hole 223bs along the third direction Z is inserted into the corresponding positioning hole 223bs. The positioning post 2422s protrudes beyond other parts of the first elastic portion 242s on both sides along the third direction Z. The positioning hole 223bs may limit the movement of the positioning post 2422s, so that the elastic deformation process of the first elastic portion 242s is more stable. In other words, since the middle part of the first elastic portion 242s is fixedly connected to the seat body 22s, the smoothness of the elastic support of the pressing portions 241s on both sides in the horizontal plane (the plane formed by the first direction X and the second direction Y) can be ensured.

[0321] See Figure 49 and Figure 50 , a protruding connecting post 227s may be formed on the inner side of the seat body 22s. A protruding connecting cylinder 215s may be formed on the inner side of the cover body 21s. When the seat body 22s and the cover body 21s are combined, the connecting post 227s is inserted into the connecting cylinder 215s, and then the connecting post 227s and the connecting cylinder 215s may be fixed together by ultrasonic welding. The seat body 22s may have two connecting posts 227s, and the cover body 21s may have two connecting cylinders 215s.

[0322] On both sides of the seat body 22s along the second direction Y, a first welding surface 221s and a second welding surface 222s may be provided. The first welding surface 221s faces the cover body 21s (i.e., faces the third direction Z). The second welding surface 222s faces the inner side of the seat body 22s (i.e., faces the direction in the plane formed by the first direction X and the second direction Y). That is to say, the first welding surface 221s and the second welding surface 222s may be perpendicular to each other, but the present application is not limited thereto. In other embodiments, the first welding surface 221s and the second welding surface 222s may form a certain angle with each other. The first welding surface 221s and the second welding surface 222s may both be in a curved shape along the contour of the outer periphery of the seat body 22s.

[0323] A fifth limiting portion 214s may be formed on the cover body 21s. The fifth limiting portion 214s may extend along the third direction Z to prevent the connecting arm 245s from moving along the third direction Z, so that the movement of the connecting arm 245s along the first direction X is smoother. Two fifth limiting portions 214s may be formed on the cover body 21s. Different from the seventh embodiment, the fifth limiting portion 214s in this embodiment may be formed in a cylindrical shape, and the two fifth limiting portions 214s and the two connecting cylinders 215s may be in a straight line, but the present application is not limited thereto. An abutting rib 204s may be provided between the fifth limiting portion 214s and the connecting cylinder 215s that are close to each other. The side of the positioning post 2422s away from the positioning hole 223bs may abut against the abutting rib 204s along the third direction Z, and the present application is not limited to this.

[0324] See Figure 50 and Figure 52 , on both sides of the cover body 21s along the second direction Y, a first step 201s, a second step 202s, and a third step 203s may be provided. The first step 201s, the second step 202s, and the third step 203s may face the outside of the cover body 21s. The first step 201s, the second step 202s, and the third step 203s may be arranged staggeredly from each other along the third direction Z. The first step 201s, the second step 202s, and the third step 203s may all be in a curved shape along the contour of the outer peripheral edge of the cover body 21s.

[0325] See Figure 51, the first step 201s, the second step 202s, and the third step 203s are fixed to the first welding surface 221s and the second welding surface 222s by ultrasonic welding. The first step 201s and the second step 202s can be ultrasonically welded to the second welding surface 222s, and the third step 203s can be ultrasonically welded to the first welding surface 221s. The ultrasonic welding between the first step 201s, the second step 202s, the third step 203s and the first welding surface 221s and the second welding surface 222s can improve the bonding strength between the cover body 21s and the base body 22s. It can be understood that the first welding surface 221s and the second welding surface 222s are located on both sides of the base body 22s along the second direction Y, and the first step 201s, the second step 202s, and the third step 203s are located on both sides of the cover body 21s along the second direction Y, so that the cover body 21s and the base body 22s are bonded to each other by ultrasonic welding and form an ultrasonic welding area. That is to say, the cover body 21s and the base body 22s form an ultrasonic welding area, which is located on both sides of the female buckle assembly 2s along the second direction Y, and the pressing part 24s is located on both sides of the female buckle assembly 2s along the first direction X. Specifically, the ultrasonic welding area can be located at the outer peripheral edges on both sides of the female buckle assembly 2s along the second direction Y, and spaces are reserved on both sides of the female buckle assembly 2s along the first direction X to arrange the pressing part 24s, making the structure more compact. For other contents of the eighth embodiment, reference can be made to the seventh embodiment, which will not be elaborated here.

[0326] The first limiting part 223as, the second limiting part 223cs, and the fifth limiting part 214s can be collectively referred to as limiting parts.

[0327] The features in the seventh embodiment and the eighth embodiment can be cross-combined under the condition of no conflict. For example, the structures of the first welding surface 221s and the second welding surface 222s, as well as the first step 201s, the second step 202s, and the third step 203s in the eighth embodiment can also be applied to the seventh embodiment. This application does not describe all combination schemes, but the embodiments obtained by cross-combining the features in the seventh embodiment and the eighth embodiment also belong to the content included in the specification of this application.

[0328] 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 known common 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.

[0329] Although the present application has been described by way of examples of 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 scope within the scope defined by the claims. Therefore, all changes falling within the scope of the claims or their equivalents should be covered by the claims.

Claims

1. A buckle, characterized in that: The buckle includes: a male buckle component with a locking part and a female buckle component with a locking hole, the locking part can be inserted into the locking hole so that the male buckle component and the female buckle component form a magnetic connection, the female buckle component includes a seat body, a pressing piece and a locking piece, the locking piece is engaged with the locking part at the locking hole, the pressing piece includes a pressing part and a first elastic part, the pressing part is pressed along a first direction to push the locking piece to disengage from the locking part, and the projections of the first elastic part and the pressing part along the first direction do not overlap with each other.

2. The buckle according to claim 1, characterized in that: The pressing member includes two pressing parts, and the two pressing parts are symmetrically arranged on both sides of the seat body. The first elastic part connects the two pressing parts and is integrally formed with the two pressing parts.

3. The buckle according to claim 1, characterized in that: The pressing member includes a pushing end, and the locking member includes an abutting end. The pressing portion pushes the abutting end with the help of the pushing end to push the locking member to move along a second direction and disengage from the locking portion. The second direction is staggered with the first direction.

4. The buckle according to claim 1, characterized in that: The locking member comprises a clamping portion, and the locking member is engaged with or disengaged from the locking portion through the clamping portion.

5. The buckle according to claim 3, characterized in that: The locking member includes a second elastic portion, which is located on the side of the locking member and is arranged along the second direction; one end of the second elastic portion is connected to the abutting end, the other end of the second elastic portion and one of the seat bodies form a connecting hole, the other end of the second elastic portion and the other of the seat bodies form a connecting column, and the connecting hole is sleeved on the connecting column.

6. The buckle according to claim 4, characterized in that: The buckle meets at least one of the following requirements: A first connecting end is formed on the seat body, a first notch is formed on the pressing portion, and the first connecting end is slidably engaged with the first notch, so that the first connecting end guides the pressing portion to move along the first direction; A second connecting end is formed on the seat body, and a second notch is formed on the engaging portion. The second connecting end is slidably engaged with the second notch, so that the second connecting end guides the engaging portion to move along the second direction; A first limiting portion is formed on the seat body. The first limiting portion is formed as two strip-shaped protrusions. The two strip-shaped protrusions are parallel to each other and extend along the second direction to limit the moving direction of the locking member.

7. The buckle according to claim 1, characterized in that: The locking hole is formed in the seat body.

8. The buckle according to claim 1, characterized in that: A second limiting portion is formed on the seat body, and the second limiting portion is formed as two strip-shaped protrusions, and the two strip-shaped protrusions are parallel to each other and extend along the first direction. A third limiting portion is formed on the seat body, and the third limiting portion is formed on a side of the second limiting portion close to the locking hole. The third limiting portion is formed as two strip-shaped protrusions and is parallel to the second limiting portion.

9. The buckle according to claim 8, characterized in that: The pressing member is provided with a connecting arm along the first direction, and the connecting arm is located between the third limiting portion and the second limiting portion.

10. The buckle according to claim 1, characterized in that: One of the first elastic part and the seat body is provided with a positioning column, and the other of the first elastic part and the seat body is provided with a positioning hole, and the positioning column is located in the positioning hole.

11. The buckle according to claim 10, characterized in that: The first elastic portion includes two bent portions, and the positioning column or the positioning hole is arranged between the two bent portions.

12. The buckle according to claim 1, characterized in that: The buckle includes a mounting portion separated from the base, the base is provided with a first magnet accommodating portion, the mounting portion is buckled on the outer side of the first magnet accommodating portion, or the mounting portion is provided with the first magnet accommodating portion.

13. The buckle according to claim 1, characterized in that: The pressing member is provided with a connecting arm along the first direction, the pressing member and the locking member are connected through the connecting arm, and the pressing member and the locking member are respectively located on both sides of the locking hole along the first direction; wherein the pressing member is pressed along the first direction so that the locking member is released along the first direction.

14. The buckle according to claim 1, characterized in that: The female buckle assembly also includes a cover body, which is fixed to the base and at least partially surrounds the pressing piece and the locking piece. The pressing piece is linked to the locking piece, and the cover body and the base are combined with each other by ultrasonic welding.

15. The buckle according to claim 14, characterized in that: A protruding connection column is formed on the inner side of one of the base body and the cover body, and a protruding connection tube is formed on the inner side of the other of the base body and the cover body, and the connection column is inserted into the connection tube; and / or One of the cover body and the base body has elastic fingers, and the other of the cover body and the base body has a buckle hole, and the elastic fingers cooperate with the buckle hole to make the cover body engage with the base body.

16. The buckle according to claim 15, characterized in that: The buckle satisfies at least one of the following three conditions: the connecting column is ultrasonically welded to the connecting tube; the outer peripheral edge of the cover body is ultrasonically welded to the outer peripheral edge of the seat body; and the elastic finger is ultrasonically welded to the buckle hole.

17. The buckle according to claim 14, characterized in that: The outer peripheral edge of the cover body has a first step, a second step and a third step, the outer peripheral edge of the base body has a first welding surface and a second welding surface, the first step and the second step are ultrasonically welded to the second welding surface, and the third step is ultrasonically welded to the first welding surface, and / or The cover body and the base body form an ultrasonic welding area, and the ultrasonic welding area is located on both sides of the female buckle assembly along the second direction. The pressing member includes a pressing portion, and the pressing portion is located on both sides of the female buckle assembly along the first direction.

18. A buckle, characterized in that: The buckle comprises: a male buckle assembly having a locking portion and a female buckle assembly having a locking hole, wherein the locking portion can be inserted into the locking hole so that the male buckle assembly and the female buckle assembly form a magnetic connection, and the female buckle assembly comprises a seat body, a pressing member and a locking member, wherein the locking member is engaged with the locking portion at the locking hole; The pressing member is provided with a connecting arm along the first direction, the pressing member and the locking member are connected through the connecting arm, and the pressing member and the locking member are respectively located on both sides of the locking hole along the first direction. The pressing member includes two pressing portions and a first elastic portion, and two ends of the first elastic portion are respectively connected to the two pressing portions.

19. The buckle according to claim 18, characterized in that: Two opposite clamping ends are arranged at the ends of the two pressing portions, and the first elastic portion is arranged between the two clamping ends of the two pressing portions along the first direction.

20. The buckle according to claim 18, characterized in that: A first notch is formed on the engaging portion, a first protrusion matching the first notch is formed on the seat body, the first notch and / or the first protrusion extend along the first direction, and / or A second recess is formed on the first elastic portion, a second protrusion matching with the second recess is formed on the seat body, and the second recess and / or the second protrusion extend along a second direction.

21. The buckle according to claim 18, characterized in that: A fifth limiting portion is formed on the female buckle assembly, and the fifth limiting portion extends along the third direction to prevent the connecting arm from moving along the third direction.

22. A buckle, characterized in that: The buckle comprises: a male buckle assembly having a locking portion and a female buckle assembly having a locking hole, wherein the locking portion can be inserted into the locking hole so that the male buckle assembly and the female buckle assembly form a magnetic connection, the female buckle assembly comprises a seat body, a pressing member and a locking member, the locking member is engaged with the locking portion at the locking hole, and the pressing member comprises a pressing portion and a first elastic portion. The pressing member is provided with a connecting arm along the first direction, the pressing member and the locking member are connected through the connecting arm, and the pressing member and the locking member are respectively located on two sides of the locking hole along the first direction; A fixed end is formed on the seat body, a first end of the first elastic portion is connected to the connecting arm, and a second end of the first elastic portion is detachably connected to the fixed end.

23. The buckle according to claim 22, characterized in that: An extension portion is formed at one end of the connecting arm close to the pressing portion connected thereto, the extension portion extends along the second direction, and the first end of the first elastic portion is connected to the extension portion.

24. The buckle according to claim 23, characterized in that: A limiting end is formed on the seat body, and the limiting end includes a first limiting end and a second limiting end. The first limiting end cooperates with the extension part for limiting, and the second limiting end cooperates with the pressing part for limiting. The first limiting end and the second limiting end respectively limit the two ends of the pressing part moving along the first direction.

25. A buckle, characterized in that: The buckle comprises: a male buckle assembly having a locking portion and a female buckle assembly having a locking hole, wherein the locking portion can be inserted into the locking hole so that the male buckle assembly and the female buckle assembly form a magnetic connection, and the female buckle assembly comprises a seat body, a pressing member and a locking member, wherein the locking member is engaged with the locking portion at the locking hole; The pressing member comprises a first pressing portion and a second pressing portion and a first connecting arm and a second connecting arm respectively located at two sides of the locking hole, and the locking member comprises a first clamping portion and a second clamping portion respectively located at two sides of the locking hole; The first connecting arm connects the first pressing portion and the first clamping portion, and the first pressing portion and the first clamping portion are respectively located on both sides of the locking hole; the second connecting arm connects the second pressing portion and the second clamping portion, and the second pressing portion and the second clamping portion are respectively located on both sides of the locking hole; The pressing member further includes a first elastic portion, wherein the first elastic portion is located between the first pressing portion and the second clamping portion, and / or the first elastic portion is located between the second pressing portion and the first clamping portion.

26. The buckle according to claim 25, characterized in that: The end of the first pressing portion and / or the second pressing portion has a protruding clamping end, and a limiting end corresponding to the clamping end is formed on the base body, and the clamping end is located on the inner side of the limiting end.

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