Fastener

Abstract

The utility model 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] This application relates to a fastener, specifically a magnetic fastener. Background Technology

[0002] Magnetic buckles are devices that use magnetism to assist in connecting and separating fasteners. They are widely used in products such as strollers, child safety seats, and baby carriers. In baby carriers, magnetic buckles allow for quick and easy connection and separation of two components, facilitating the putting on and taking off of the carrier. Users have a particular need for magnetic buckles that are small, lightweight, and simple in structure, while meeting requirements for connection strength and stability. Furthermore, the applicant also desires buckles with good strength and an aesthetically pleasing appearance.

[0003] Therefore, it is necessary to develop a fastener that can solve the above problems. Utility Model Content

[0004] The purpose of this application is to provide a fastener that is small in size and lightweight.

[0005] The purpose of this application is also to provide a fastener that is easy to operate and stable in operation.

[0006] The purpose of this application is also to provide a fastener with high structural strength.

[0007] To achieve the above objectives, in one aspect, a fastener is provided, characterized in that the fastener comprises: a male fastener assembly having a locking portion and a female fastener assembly having a locking hole, wherein the locking portion can be inserted into the locking hole to form a magnetic connection between the male fastener assembly and the female fastener assembly, the female fastener assembly includes a base, a pressing member, and a locking member, the locking member engaging with the locking portion at the locking hole, the pressing member including a pressing portion and a first elastic portion, the pressing portion being pressed along 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 along the first direction do not overlap each other.

[0008] In one embodiment, the pressing member includes two pressing portions symmetrically arranged on both sides of the seat body, and the first elastic portion is located between the two pressing portions and 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 which is integrally formed and includes a second elastic portion located on the side of the locking member and disposed along a second direction.

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

[0013] In one embodiment, the locking member includes an engaging portion, through which the locking member engages or disengages with the locking portion.

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

[0015] In one embodiment, a first connecting end is formed on the seat, and a first notch is provided on the pressing part. The first connecting end slidably engages with the first notch, such that the first connecting end guides the pressing part to move along the first direction.

[0016] In one embodiment, a second connecting end is formed on the seat, and a second notch is provided on the engaging portion. The second connecting end slidably engages with the second notch, such that the second connecting end guides the engaging portion to move in a second direction.

[0017] In one embodiment, the male fastening assembly includes a locking member and a retaining member that engage with each other, the locking member forming a cavity, and the retaining member sealing the cavity to receive a first magnet.

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

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

[0020] In one embodiment, a first limiting portion is formed on the base, the first limiting portion being formed as two strip-shaped protrusions, the two strip-shaped protrusions being parallel to each other and extending along the second direction to limit the movement direction of the locking member.

[0021] In one embodiment, a locking groove is formed on the locking portion, and the engaging 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 by 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.

[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 both sides of the locking hole along the first direction, and the 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, 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, the connecting arm has an extension at one end near the pressing portion connected thereto, the extension extending in a second direction, and the first end of the first elastic portion is connected to the extension.

[0026] In one embodiment, the extension extends in a direction away from the locking hole, and the first elastic portion is connected to the end of the extension away 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 to perform limiting, and the second limiting end cooperates with the pressing part to perform limiting. The first limiting end and the second limiting end respectively limit the pressing part at both ends of its movement 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 to perform limiting; and / or, the second limiting end includes a second limiting surface, and the connecting arm cooperates with the second limiting surface to perform limiting.

[0029] In one embodiment, the pressing member includes a first pressing portion and a second pressing portion located on both sides of the locking hole, as well as a first connecting arm and a second connecting arm. The locking member includes a first engaging portion and a second engaging portion located on both sides of the locking hole. The first connecting arm connects the first pressing portion and the first engaging portion, which are located on both sides of the locking hole. The second connecting arm connects the second pressing portion and the second engaging portion, which are located on both 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 ends of the first pressing portion and / or the second pressing portion have protruding snap-fit ​​ends, and the seat body has a limiting end corresponding to the snap-fit ​​end, the snap-fit ​​end being located inside the limiting end.

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

[0032] In one embodiment, the ends of the two pressing portions are provided with two opposing snap-fit ​​ends, and the first elastic portion is disposed between the two snap-fit ​​ends of the two pressing portions along the first direction.

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

[0034] In one embodiment, a second recess is formed on the first elastic portion, and a second protrusion is formed on the seat body to mate with the second recess, the second recess and the second protrusion extending along a second direction.

[0035] In one embodiment, a second limiting portion is formed on the base, the second limiting portion being formed as two strip-shaped protrusions, the two strip-shaped protrusions being parallel to each other and extending along the first direction to limit the movement direction of the two connecting arms.

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

[0037] In one embodiment, the third limiting portion is formed as two strip-shaped protrusions, 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 part 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 curved portions, and the positioning post is disposed between the two curved portions.

[0042] In one embodiment, the fastener includes a mounting portion separate from the base body, the base body having a first magnet receiving portion, and the mounting portion fastening to the outside of the first magnet receiving portion.

[0043] In one embodiment, a raised rib is formed on the outer side of the first magnet receiving portion.

[0044] In one embodiment, a rib is formed on the outer side of the first magnet receiving portion, and a recess is formed on the inner side of the mounting portion, with the rib slidably disposed within the recess.

[0045] In one embodiment, the fastener includes a mounting portion separate from the seat body, a fourth limiting portion is provided on the outer side of the mounting portion, the locking member includes an engaging portion, the locking member engages or disengages from the locking portion through the engaging portion, and the fourth limiting portion limits the movement of the engaging portion along a third direction, the third direction being perpendicular to the first direction.

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

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

[0048] On the other hand, a fastener is provided, the fastener including a male fastener assembly and a female fastener assembly, the male fastener assembly being partially inserted into the female fastener assembly for being locked by the female fastener assembly, the female fastener assembly including a cover, a seat, a pressing member and a locking member, the cover and the seat being fixed to each other and at least partially surrounding the pressing member and the locking member, the pressing member being linked to the locking member, and the cover and the seat being joined together by ultrasonic welding.

[0049] In one embodiment, the pressing member includes a pressing portion and an elastic portion, the pressing portion moving in a first direction causing the locking member and the male buckle assembly to release in the first direction, the elastic portion providing a spring 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 not overlapping 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 and the cover, and a protruding connecting cylinder is formed on the inner side of the other of the base and the cover, the connecting post being inserted into the connecting cylinder; and / or one of the cover and the base has a resilient finger, and the other of the cover and the base has a snap-fit ​​hole, the resilient finger engaging with the snap-fit ​​hole to engage the cover and the base.

[0051] In one embodiment, the fastener satisfies at least one of the following: the connecting post is ultrasonically welded to the connecting cylinder; the outer peripheral edge of the cover is ultrasonically welded to the outer peripheral edge of the seat; and the elastic finger is ultrasonically welded to the buckle hole.

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

[0053] In one embodiment, the cover and the seat are joined together along a third direction, which is perpendicular to the first and second directions, and the size of the cover in the third direction is smaller than the size of the seat in the third direction.

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

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

[0056] In one embodiment, a plurality of limiting portions are formed on the cover and the seat to guide the movement of the pressing member and the locking member along the first direction and prevent the movement of the pressing member and the locking member along the second direction and the third direction, wherein 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, and the outer peripheral edge of the seat 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 seat form an ultrasonic welding area, the ultrasonic welding area being located on both sides of the female buckle assembly along a second direction. The pressing member includes a pressing part, the pressing part being located on both sides of the female buckle assembly along a first direction.

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

[0059] The elastic part of the fastener in this application is located on the side of the pressing part and is not at the same horizontal position as the pressing direction, which reduces the internal movement space and improves the internal space utilization of the fastener, thereby reducing the size of the fastener and making the fastener easier to install.

[0060] The fasteners of this application are ultrasonically welded, which makes the overall appearance of the fasteners beautiful, allows for seamless connection between components, and provides good overall strength. Attached Figure Description

[0061] The various objectives, features, and advantages of this application will become more apparent from the following detailed description of preferred embodiments in conjunction with the accompanying drawings. The drawings are merely illustrative illustrations of this application and are not necessarily drawn to scale. In the drawings, the same reference numerals always denote the same or similar parts. Wherein:

[0062] Figure 1 This is a perspective view of the fastener according to the first embodiment of this application, wherein the male fastener assembly and the female fastener assembly are connected;

[0063] Figure 2 This is a perspective view of the fastener according to the first embodiment of this application, wherein the male fastener assembly and the female fastener assembly are separate;

[0064] Figure 3 This is a perspective view of the fastener according to the first embodiment of this application, wherein the cover is removed to show the internal structure;

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

[0066] Figure 4 The fastener edge of the first embodiment of this application Figure 1 A sectional view of line AA;

[0067] Figure 4A The fastener edge of the first embodiment of this application Figure 1 A cross-sectional view of line AA from another angle;

[0068] Figure 5 This is a perspective view of the fastener according to the first embodiment of this application, wherein the cover is removed to show the internal structure and the pressing part is in a pressed state;

[0069] Figure 6 This is a cross-sectional view of the fastener according to the first embodiment of this application, wherein the cutting method can be referred to Figure 5 The line A1-A1 is in the middle, and the pressing part is in a pressed state;

[0070] Figure 7 This is a perspective view of the female buckle assembly of the fastener according to the first embodiment of this application, wherein some parts are removed to show the obscured structure;

[0071] Figure 8 This is a perspective view of the female buckle assembly of the fastener according to the first embodiment of this application, wherein some parts are removed to show the obscured structure;

[0072] Figure 9 This is an exploded perspective view of the fastener according to the first embodiment of this application;

[0073] Figure 10 This is a perspective view of the fastener according to the second embodiment of this application, wherein the male fastener assembly is connected to the female fastener assembly;

[0074] Figure 11 This is a perspective view of the fastener according to the second embodiment of this application, wherein the male fastener assembly and the female fastener assembly are separate;

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

[0076] Figure 13 The fastener of the second embodiment of this application Figure 10 A sectional view along line A2-A2;

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

[0078] Figure 15 The fastener of the second embodiment of this application Figure 10 A sectional view along line A2-A2, showing the pressing part in a pressed state;

[0079] Figure 16 This is an exploded perspective view of the fastener according to the second embodiment of this application;

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

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

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

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

[0084] Figure 21 This is a perspective view of the fastener according to the fifth embodiment of this application, wherein the male fastener assembly and the female fastener assembly are separate;

[0085] Figure 22 This is an exploded perspective view of the fastener according to the fifth embodiment of this application;

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

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

[0088] Figure 25 This is a perspective view of the pressing and locking parts of the fastener according to the fifth embodiment of this application;

[0089] Figure 26 This is a perspective view of the seat of the fastener according to the fifth embodiment of this application;

[0090] Figure 27 This is a cross-sectional view of the fastener of the sixth embodiment of this application along the first direction, wherein the cutting method can be referred to Figure 24 The line A3-A3 is in the middle, and the pressing part is in an unpressed state;

[0091] Figure 28 This is an exploded perspective view of the fastener according to the sixth embodiment of this application;

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

[0093] Figure 30 This is a perspective view of the pressing and locking parts of the fastener according to the sixth embodiment of this application;

[0094] Figure 31This is a perspective view of the seat of the fastener according to the sixth embodiment of this application;

[0095] Figure 32 This is a perspective view of the cover of the fastener according to the sixth embodiment of this application;

[0096] Figure 33 This is a perspective view of the pressing and locking parts of the fastener according to the sixth embodiment of this application from another angle;

[0097] Figure 34 This is a cross-sectional view of the fastener of the sixth embodiment of this application along the second direction, wherein the cutting method can be referred to Figure 24 Line A4-A4 in the middle;

[0098] Figure 35 This is a perspective view of the fastener according to the seventh embodiment of this application;

[0099] Figure 36 This is another perspective view of the fastener according to the seventh embodiment of this application;

[0100] Figure 37 This is another perspective view of the fastener according to the seventh embodiment of this application.

[0101] Figure 38 This is a side view of the female buckle assembly according to the seventh embodiment of this application;

[0102] Figure 39 This is a front view of the female buckle assembly according to the seventh embodiment of this application;

[0103] Figure 40 This is a perspective view of the seat of the female buckle assembly according to the seventh embodiment of this application;

[0104] Figure 41 This is a perspective view of the pressing member and locking member of the seventh embodiment of this application;

[0105] Figure 42 This is a perspective view of the cover of the female fastener assembly according to the seventh embodiment of this application;

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

[0107] Figure 44 This is a perspective view of the male fastener component of the seventh embodiment of this application;

[0108] Figure 45 This is a perspective view of the fastener according to the eighth embodiment of this application;

[0109] Figure 46 This is another perspective view of the fastener of the eighth embodiment of this application;

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

[0111] Figure 47A This is an exploded perspective view of the fastener according to the eighth embodiment of this application; and

[0112] Figure 47B This is another exploded perspective view of the fastener according to the eighth embodiment of this application.

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

[0114] Figure 49 This is a perspective view of the seat of the female buckle assembly according to the eighth embodiment of this application;

[0115] Figure 50 This is a perspective view of the cover of the female fastener assembly according to the eighth embodiment of this application;

[0116] Figure 51 It is along Figure 45 A cross-sectional view taken from line A5-A5; and

[0117] Figure 52 This is another perspective view of the cover of the female buckle assembly according to the eighth embodiment of this application.

[0118] List of reference numerals in the attached diagram:

[0119] 100 Fasteners

[0120] 1. Male buckle assembly

[0121] 10 Locking components

[0122] 11 Locking Part

[0123] 12 Locking Grooves

[0124] 13 First connecting part

[0125] 14. Cavity

[0126] 15 Fasteners

[0127] 2. Female snap fastener assembly

[0128] 21. Cover

[0129] 211 First Magnet Receiving Section

[0130] 212 ribs

[0131] 213 Ribs

[0132] 214 Fifth limiting part

[0133] 22 base

[0134] 201 Card Slot

[0135] 202 Flexible Fingers

[0136] 221 Opening

[0137] 222 Limit End

[0138] 222a First Limit End

[0139] 222b Second Limit 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 Terminal

[0149] 225a Second protrusion

[0150] 226 Locking Hole

[0151] 227 Connecting Post

[0152] 228 Installation Department

[0153] 2281 Fourth limiting part; 2282 Recessed part

[0154] 229 Fixed end 23 Second connecting part 24 Pressing element

[0155] 241 Pressing part

[0156] 2411 First notch

[0157] 2412 Third notch

[0158] 2413 Elongated groove

[0159] 2414 Stop section

[0160] 242 First elastic part

[0161] 2421 Positioning Terminal

[0162] 2422 Positioning Post

[0163] 2423 Bending section

[0164] 243 Top Push End

[0165] 244 card connector

[0166] 245 Connecting Arm

[0167] 2451 Extension

[0168] 2452 Limiting Inclined Surface

[0169] 246 Fixed end 25 Locking component

[0170] 251 Card Section

[0171] 2511 Second notch

[0172] 252 Connecting End

[0173] 253 Second elastic part

[0174] 2531 Connecting hole

[0175] 3 First Magnet

[0176] 4. Second Magnet

[0177] 100s Fastener

[0178] 1s male buckle component

[0179] 11s Locking Part

[0180] 12s locking slot

[0181] 2s female buckle assembly

[0182] 21s Cover

[0183] 201s First Step

[0184] 202s Second Step

[0185] 203s Third Step

[0186] 204s connecting rib

[0187] 211s First magnet receiving part 212s Protruding rib

[0188] 213s Rib

[0189] 214s Fifth Limiting Section

[0190] 215s Connecting cylinder

[0191] 216s inner mating part

[0192] 217s Edge docking section

[0193] 218s Flexible Fingers

[0194] 219s reinforcing rib

[0195] 22s seat

[0196] 221s First welding surface

[0197] 222s Second welding surface

[0198] 223as First Limiting Section

[0199] 223bs positioning hole

[0200] 223cs Second Limiting Section

[0201] 224as protrusion

[0202] 226s locking hole

[0203] 227s connecting column

[0204] 228s card slot

[0205] 23s Second connecting part

[0206] 24s pressing part

[0207] 241s Pressing Section

[0208] 242s First elastic part

[0209] 2422s positioning column

[0210] 2423s Bend

[0211] 245s connecting arm

[0212] 25s locking mechanism

[0213] 5s with Detailed Implementation

[0214] To more clearly illustrate the overall concept of this application, a detailed explanation will be provided below with reference to the accompanying drawings.

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

[0216] Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and "both sides," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0217] The directions described in the instruction manual, such as "first direction," "second direction," "third direction," "up and down direction," and "left and right direction," are defined to clearly express positional relationships and are used to distinguish different directions, rather than referring to any specific direction.

[0218] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two entities connected are not linked by an intermediate structure, but are simply connected to form a whole. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0219] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0220] The buckle 100 of this application can be applied to products such as strollers, child safety seats, and infant carriers. In the following embodiments, the application of the buckle 100 to an infant carrier is only used as an example, but this application is not limited thereto.

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

[0222] See Figure 1 and Figure 2 , the buckle 100 of the present application may include a male buckle component 1 and a female buckle component 2. The male buckle 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 buckle component 1 to the corresponding part of the baby carrier. The male buckle component 1 may also have a locking portion 11. The female buckle 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 buckle component 1 and the female buckle component 2 form a connection. The connection formed by the male buckle component 1 and the female buckle 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 buckle component 1, and an annular locking groove 12 may be formed on the locking portion 11. The female buckle 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 buckle component 2, and the second connecting portion 23 may be connected to a webbing. For example, the female buckle component 2 may be connected to a baby carrier or a safety belt, etc., without limitation. In this embodiment, the second connecting portion 23 may form two through holes (i.e., formed as a "day" character buckle), but not limited thereto. Both sides of the female buckle 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 figure). The pressing portion 241 is used to operate the connection and separation of the male buckle component 1 and the female buckle 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 buckle 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 operatively engage with the locking portion 11 of the male buckle 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 may be integrally formed. Alternatively, the pressing member 24 may be multiple independent parts. The pressing member 24 may include a pressing portion 241 and a first elastic portion 242. The first elastic portion 242 may be disposed 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 is integrally formed with the two pressing portions 241. Alternatively, the first elastic portion 242 and the two pressing portions 241 may be independent of each other. The projections of the first elastic portion 242 and the pressing portion 241 along a first direction do not overlap each other. The first elastic portion 242 may have a curved shape and provide an elastic force to separate the two pressing portions 241 from each other through elastic deformation. The two ends of the first elastic portion 242 may form push ends 243 to push the abutment ends 252 of the locking member 25. A snap-fit ​​end 244 may be formed between the push ends 243 and the pressing portions 241. The outer side of the snap-fit ​​end 244 can abut against the limiting end 222 on the base 22 to prevent the pressing part 241 from being pushed out of the base 22 by the first elastic part 242. The limiting end 222 can cooperate with the snap-fit ​​end 244 to facilitate the quick installation of the pressing member 24 and limit the movement stroke. The number of limiting ends 222 can correspond to the number of snap-fit ​​ends 244. In this embodiment, the pressing part 241 is provided with limiting ends 222 and snap-fit ​​ends 244 on both sides along the second direction. In another embodiment, the pressing part 241 is provided with limiting ends 222 and snap-fit ​​ends 244 on one side along the second direction. It should be noted that the projection of the first elastic part 242 and the pressing part 241 along the first direction means that the first elastic part 242 and the pressing part 241 are projected onto a plane perpendicular to the first direction (that is, the plane where the second direction is located).

[0225] Since the first elastic portion 242 is located on one or both sides of the pressing portion 241 along the second direction, the first elastic portion 242 will not hinder the movement of the pressing portion 241. Thus, the two pressing portions 241 can be set to be closer to each other, thereby reducing the width of the fastener 100 (in this application, the width can refer to the dimension of the pressing portion 241 in the direction of movement).

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

[0227] See Figure 9 The male fastener assembly 1 may include a locking member 10 and a retaining member 15 that cooperate with each other. See also Figure 4 and Figure 4AThe locking member 10 can form a cavity 14 for receiving the second magnet 4. The retaining 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 each other. The first magnet 3 and the second magnet 4 can be configured to attract each other. When the locking part 10 enters the locking hole 226, the male fastening assembly 1 and the female fastening assembly 2 are connected together due to the attraction between the first magnet 3 and the second magnet 4. Alternatively, the first magnet 3 and the second magnet 4 can be configured to repel each other.

[0228] See Figures 3 to 6 The locking member 25 may 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 the locking groove 12 located on the locking portion 11 in the locking hole 226. At this time, the engaging portion 251 abuts against the locking portion 11, preventing the male buckle assembly 1 from disengaging from the female buckle assembly 2. The abutting end 252 is linked to the engaging portion 251, and the abutting end 252 may have an approximately triangular shape, thus forming bevels on both sides. When the pressing portion 241 is actuated inward (e.g. Figure 5 (As shown by the solid arrow in the image), the pushing end 243 and the first elastic part 242 press against the inclined surface of the abutting end 252, thereby causing the engaging parts 251 of the two locking members 25 to move away from the locking hole 226 respectively (as shown by the solid arrow in the image). Figure 5 (As shown by the dashed arrow in the image). When the engaging part 251 leaves the locking groove 12, the attraction between the first magnet 3 and the second magnet 4 can be overcome, causing the male fastening assembly 1 and the female fastening assembly 2 to separate from each other, that is, the male fastening assembly 1 and the female fastening assembly 2 disengage.

[0229] See Figures 7 to 9 The second elastic portion 253 may have a curved shape and provide a spring force to push the engaging portion 251 toward 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 connecting hole 2531. The seat 22 may form a connecting post 227, and the connecting hole 2531 is sleeved on the connecting post 227. It should be noted that the connection can be achieved by providing a connecting post on one end of the second elastic portion 253 and a connecting hole on the other end of the seat 22. Therefore, in another embodiment, the other end of the second elastic portion 253 forms a connecting post, and a connecting hole is formed on the seat 22. The connecting hole 2531 can be sleeved on the connecting post 227. The second elastic portion 253 may be located below the first elastic portion 242. Figure 4 or Figure 4A (below the center), so that the movements of the first elastic part 242 and the second elastic part 253 do not interfere with each other, which can reduce the volume of the fastener 100.

[0230] The base 22 may have a first connecting end 224 and a second connecting end 225. The first connecting 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 connecting 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 connecting end 224 and the second connecting end 225 may be formed in a protruding shape.

[0231] In some embodiments, one end of the second elastic portion 253 may be connected to the center of the abutment end 252 (i.e., aligned with the second connecting end 225 along the second direction), and the abutment end 252 and the second connecting end 225 may be centrally disposed relative to the base 22. The connecting hole 2531 and the connecting post 227 may be aligned with the second connecting end 225 along the second direction. That is, both ends of the second elastic portion 253 along the second direction are aligned in the second direction and are centrally disposed on the base 22. In this way, the second elastic portion 253 can apply an elastic force along the second direction without generating an elastic force pointing in any direction other than the second direction.

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

[0233] A first limiting portion 223 may be formed on the seat 22. The first limiting portion 223 may be formed as two strip-shaped protrusions, which are parallel to each other and extend in a 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 movement direction of the locking member 25. The first limiting portion 223 can guide the locking member 25 to ensure the stability of movement and engagement. The two locking members 25 may be respectively provided on the upper and lower sides of the mounting portion 228, and each locking member 25 is limited by the first limiting portion 223.

[0234] like Figure 3 and Figure 3A As shown, the first elastic portion 242 is formed having two curved portions. (As indicated...) Figure 3 , Figure 3A and Figure 5 As can be seen, when the buckle 100 is in the locked and unlocked states, the junction point between the two curved portions of the first elastic portion 242 moves along the second direction. Optionally, the first elastic portion 242 is formed to have one, three, or four curved portions. The shapes of the first elastic portion 242 listed above are merely examples, and this application does not limit the specific structure of the first elastic portion 242.

[0235] In this application, the first direction may intersect with the second direction. "Intersecting" means that the first direction and the second direction are not parallel to each other, but may be approximately perpendicular or perpendicular to each other.

[0236] The second embodiment of this application will be described below. Parts identical to those in the first embodiment will be omitted in the second embodiment.

[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 can 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. Either 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 along a first direction.

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

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

[0241] An extension 2451 is formed at one end of the connecting arm 245 near the pressing portion 241 connected to it. The extension 2451 extends from the connecting arm 245 in a second direction and toward the direction away from the locking hole 226. A first elastic portion 242 is connected to the connecting arm 245 via the extension 2451, such that the first end of the first elastic portion 242 is connected to the end of the connecting arm 245 near the pressing portion 241. That is, the first end of the first elastic portion 242 is connected to the extension 2451. Specifically, the first elastic portion 242 is connected to the end of the extension 2451 away from the connecting arm 245. Specifically, in this embodiment, there are two extension portions 2451, which are respectively disposed on the two connecting arms 245 on the upper and lower sides and extend in a direction away from each other along the second direction; the fixed end 229 is disposed opposite to the extension portion 2451 along the first direction, that is, the extension portion 2451 is disposed on the end of the connecting arm 245 near the end connected to the pressing portion 241, and the fixed end 229 is disposed on the seat 22 near the side of the connecting arm 245 connected to the locking member 25.

[0242] In this embodiment, the extension 2451 ensures that the projections of the pressing part 241 and the first elastic part 242 in the first direction do not overlap, thereby reducing the arrangement space and thus reducing the volume of the fastener 100. The fixed end 229 is disposed opposite to the extension 2451, so that the first elastic part 242 is disposed along the first direction. Its elasticity makes it easier for the locking member 25 to be held in the locked position, thereby enhancing the engagement strength between the engaging part 251 and the male buckle assembly 1, achieving a small volume and high strength for the fastener 100.

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

[0244] In other embodiments, except... Figure 12 In addition to the position shown, the extension 2451 can also be provided at the end of the connecting arm 245 near the end connected to the locking member 25, and the fixed end 229 can be provided on the seat 22 near the side of the connecting arm 245 connected to the pressing part 241. That is, the directions of the extension 2451 and the fixed end 229 can be interchanged, and in this case, the first elastic part 242 can be a tension elastic member.

[0245] In this embodiment, as Figure 12As shown, taking the left-side pressing part 241 as an example, the connecting arm 245 and the first elastic part 242 connected to the pressing part 241 are respectively disposed on one side of the pressing part 241 along the second direction, that is, the connecting arm 245 and the first elastic part 242 are both disposed on the upper side of the left-side pressing part 241, but this is not a limitation. In some other embodiments not shown, the first elastic part 242 and the connecting arm 245 connected to the pressing part 241 may be disposed on opposite sides of the pressing part 241 along the second direction. For example, the connecting arm 245 is disposed 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 may be formed on the seat body 22. Specifically, two first limiting ends 222a and two second limiting ends 222b may be formed on the seat body 22. The first limiting ends 222a and the second limiting ends 222b may be located on the inner side of the two pressing parts 241 along the first direction, respectively.

[0247] The first limiting end 222a can extend inward from the outer edge of the seat 22 along a first direction. The second limiting end 222b can extend inward from the outer edge of the seat 22 along the first direction for a certain distance, and then extend along the second direction towards the locking part 11 for a certain distance. 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 2451. Specifically, the inner side of the first limiting end 222a along the first direction can abut against the outer side of the extension 2451 along the first direction, thereby preventing the first elastic part 242 from pushing the pressing member 24 out of the cover 21 and the seat 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 to perform 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 to perform limiting. See also Figure 12 The second limiting end 222b may have a first limiting surface 222b1 and a second limiting surface 222b2 formed on both sides along the first direction. The first limiting surface 222b1 is disposed on the side near the pressing part 241 along the first direction, and the second limiting surface 222b2 is disposed on the side near the connecting arm 245 along the first direction. Figure 12Taking the left-side pressing member 24 as an example, the pressing part 241 cooperates with the first limiting surface 222b1 to restrict one side of the pressing part 241. Figure 12 The lower side of the middle) moves in the first direction; the limiting inclined surface 2452 on the connecting arm 245 cooperates with the second limiting surface 222b2 to limit the other side of the pressing part 241 ( Figure 12 The upper side of the pressing part 241 (i.e., the side connected to the connecting arm 245 along the second direction) has a travel distance in the first direction. In some embodiments, only the first limiting surface 222b1 may be provided, which abuts against the inner side of the pressing part 241 along the first direction, thereby limiting the maximum distance that the pressing part 241 can be pressed. Optionally, only the second limiting surface 222b2 may be provided, which abuts against the limiting inclined surface 2452 of the connecting arm 245, thereby limiting the maximum distance that the pressing part 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 is sufficient to limit the maximum distance that the pressing part 241 can be pressed. Of course, when the first limiting surface 222b1 and the second limiting surface 222b2 abut against the pressing part 241 and the connecting arm 245 respectively, the force on both sides of the pressing member 24 is balanced, thereby having better operating quality. The second limiting surface 222b2 not only limits the connecting arm 245, but also avoids interference with the connecting arm 245. In 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, without being limited thereto.

[0250] Two first limiting ends 222a may be disposed on the upper left and lower right parts of the fastener 100, and two second limiting ends 222b may be disposed on the lower left and upper right parts of the fastener 100, but this application is not limited thereto. Optionally, two first limiting ends 222a may be disposed on the lower left and upper right parts of the fastener 100, and two second limiting ends 222b may be disposed on the upper left and lower right parts of the fastener 100. Each pressing member 24 may be limited by one first limiting end 222a and one second limiting end 222b, such that both ends of the movement of each pressing member 24 in the first direction are limited, thereby preventing the pressing part 241 from moving excessively in the first direction.

[0251] See Figure 14 and Figure 15 When the pressing part 241 is actuated inward (e.g.) Figure 14 As shown by the solid arrow in the diagram, under the push of the connecting arm 245, the two engaging portions 251 respectively disengage from the locking hole 226 and the locking groove 12 on the locking portion 11, thereby disengaging the male fastener assembly 1 from the female fastener assembly 2. During this process, the first elastic portion 242 is further compressed along the first direction (as shown by the solid arrow in the diagram). Figure 14 (As shown by the dashed arrow in the image). 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, thereby causing the two engaging parts 251 to re-enter the locking hole 226, that is, the pressing member 24 and the locking member 25... Figure 14 The unlock state shown has moved to... Figure 12 The locked state is shown.

[0252] See Figure 12 and Figure 16 A first notch 2411 may be formed on each of the two engaging portions 251. A first protrusion 224a may be formed on the seat 22 to engage with the first notch 2411. The first notch 2411 and the first protrusion 224a extend in a first direction to ensure stability during the movement of the pressing member 24 and the locking member 25.

[0253] The third embodiment of this application will be described below. Parts identical to those in the second embodiment will be omitted in the third embodiment.

[0254] See Figure 17 and Figure 18 In the third embodiment, unlike the second embodiment, the two ends of the first elastic portion 242 are respectively connected to the engaging portion 251 and the pressing portion 241 to apply a pushing force. One engaging portion 251 is connected to one pressing portion 241 via the first elastic portion 242, and the engaging portion 251 is connected to another pressing portion 241 via a connecting arm 245. Thus, the two pressing portions 241, the two connecting arms 245, and the two engaging portions 251 are formed as an integral structure via the first elastic portion 242. Alternatively, the two pressing portions 241, the two connecting arms 245, the two engaging portions 251, and the first elastic portion 242 can be independent components. The end of each pressing portion 241 may have an engaging end 244 protruding upward and / or downward respectively. A limiting end 222 may be formed on the seat body 22. The limiting end 222 may protrude inward from the outer periphery of the seat body 22. The limiting end 222 is located outside the locking end 244 (i.e., the locking end 244 is located inside the limiting end 222), thereby limiting the maximum distance that the pressing part 241 can move outward, and making the pressing part 241 stably stopped.

[0255] In this embodiment, each pressing part 241 has a locking end 244 at both ends along the second direction (i.e., there are a total of 4 locking ends 244), and correspondingly, 4 limiting ends 222 can be formed on the seat body 22.

[0256] In another embodiment, each pressing part 241 has a locking end 244 at one end along the second direction (i.e., a total of 2 locking ends 244), and correspondingly, 2 limiting ends 222 may be formed on the seat 22. The number of locking ends is not limited thereto.

[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. Figure 17 As shown, the pressing part 241 on the left can be referred to as the first pressing part, and the pressing part 241 on the right can be referred to as the second pressing part. The connecting arm 245 on the left can be referred to as the first connecting arm, and the connecting arm 245 on the right can be referred to as the second connecting arm. The engaging part 251 on the left can be referred to as the second engaging part, and the engaging part 251 on the right can be referred to as the first engaging part. The first connecting arm can connect the first pressing part and the first engaging part, and the second connecting arm can connect the second pressing part and the second engaging part. The first elastic part 242 can be located between the first pressing part and the second engaging part, and / or between the second pressing part and the first engaging part.

[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) may be formed on the seat 22 to engage with the first notch 2411. The first notch 2411 and the first protrusion 224a extend in a first direction to ensure stability during the movement of the pressing member 24 and the locking member 25.

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

[0260] In some other embodiments not shown, one end of the first elastic part 242 may be connected to the connecting arm 245, and the other end of the first elastic part 242 may be connected to the body of the pressing part 241, or disposed at the snap-fit ​​end 244.

[0261] The fourth embodiment of this application will be described below. Parts identical to those in the third embodiment will be omitted.

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

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

[0264] The snap-fit ​​end 244 not only serves as a limiting function, but also extends in the second direction away from the pressing part 241, so that the projections of the first elastic part 242 and the pressing part 241 in the first direction do not overlap, thereby reducing the volume of the fastener 100.

[0265] The fifth embodiment of this application will be described below. Parts identical to those in the fourth embodiment will be omitted.

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

[0267] The first elastic portion 242 may be respectively disposed on the upper and lower sides of the two pressing portions 241, and located between the two pressing portions 241. Each pressing portion 241 may have a locking end 244 formed at both its upper and lower ends. The locking end 244 extends away from the pressing portion 241 along a second direction. The first elastic portion 242 extends in a curved manner along a first direction to be elastic. Each end of the first elastic portion 242 is connected to a locking end 244. The first elastic portion 242 can apply an outward pushing force along the first direction to the two pressing portions 241. In this embodiment, the two pressing portions 241, the first elastic portion 242, the two locking ends 244, and the two engaging portions 251 may be integrally formed. In another embodiment, the two pressing portions 241, the first elastic portion 242, the two locking ends 244, and the two engaging portions 251 may be independent components.

[0268] Since the snap-fit ​​end 244 extends away from the pressing part 241 along the second direction, and the first elastic part 242 is disposed between the two snap-fit ​​ends 244 along the first direction, the projections of the first elastic part 242 and the pressing part 241 along the first direction do not overlap with each other, thereby reducing the volume of the fastener 100.

[0269] See Figures 21 to 26 In the fifth embodiment, a first notch 2411 may be formed on each of the two engaging portions 251. A second notch 2511 may be formed on the first elastic portion 242. A first protrusion 224a that mates with the first notch 2411 and a second protrusion 225a that mates with the second notch 2511 may be formed on the seat 22. The directions of the first protrusion 224a and the second protrusion 225a are staggered. The first protrusion 224a extends along a first direction to ensure stability during horizontal movement of the engaging portion 251. The second protrusion 225a extends along a second direction to ensure stability during vertical deformation of the first elastic portion 242. Figure 23 As shown, in the fifth embodiment, the first elastic portion 242 may have two curved portions, but is not limited thereto.

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

[0271] The cover 21 and the base 22 can be engaged and fixed together. Specifically, as shown in the figure... Figure 22 and Figure 26 As shown, a resilient finger 202 may be formed on the cover 21. A slot 201 may be formed on the base 22. The resilient finger 202 can cooperate with the slot 201 to fix the cover 21 and the base 22 to each other.

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

[0273] The above-described structure of the cover 21 and the seat 22 can be applied to other embodiments, but this application does not limit the connection method of the cover 21 and the seat 22.

[0274] The sixth embodiment of this application will be described below. Parts identical to those in the fifth embodiment will be omitted.

[0275] See Figure 28 The fastener 100 may include a male fastener assembly 1 and a female fastener assembly 2 (the overall structure of the female fastener assembly 2 can be found in [reference]). Figure 2 The female fastener assembly 2 may include a cover 21, a seat 22, a mounting portion 228, and a pressing member 24. A second connecting portion 23 for connection with a webbing may be formed on the seat 22. A locking member 25 is integrally formed on the pressing member 24 (see [link]). Figure 29 Alternatively, the locking element 25 and the pressing element 24 can be separate components that can be connected together.

[0276] See Figure 32A first magnet receiving portion 211 may be formed on the cover 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 circumferentially along the first magnet receiving portion 211. The rib 212 may cooperate with the mounting portion 228, so 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 rib 212 may not exceed half the circumference of the first magnet receiving portion 211, but this application is not limited thereto. Two ribs 212 may be symmetrically formed on the first magnet receiving portion 211, but this application is not limited thereto. A rib 213 may also be formed on the outer side of the first magnet receiving portion 211. The rib 213 may extend axially along the first magnet receiving portion 211. The rib 213 may be used to guide the process of the mounting portion 228 fastening onto the first magnet receiving portion 211. Two ribs 213 may be symmetrically formed on the first magnet receiving portion 211, but this application is not limited thereto.

[0277] See also Figure 28 The mounting portion 228 can mate with the cover 21 to accommodate and seal the first magnet 3. The mounting portion 228 can be formed in a generally circular shape. The mounting portion 228 can be formed with a fourth limiting portion 2281 and a recess 2282. The fourth limiting portion 2281 can be formed as an arm extending radially outward from the outer surface of the mounting portion 228. The fourth limiting portion 2281 can extend linearly. The fourth limiting portion 2281 can limit the movement of the engaging portion 251 (described in detail below). The recess 2282 can be formed as a recess extending radially outward from the inner surface of the mounting portion 228. The mounting portion 228 can be formed with two fourth limiting portions 2281 that are opposite to each other, but this application is not limited thereto. The mounting portion 228 can be formed with two recesses 2282 that are opposite to each other, but this application is not limited thereto. When the cover 21 mates with the mounting part 228, each rib 213 can be inserted into the corresponding recess 2282, so that the recess 2282 guides the mounting part 228 to engage with the cover 21. Due to the engagement of the recess 2282 and the rib 213, the extension direction of the fourth limiting part 2281 after the mounting part 228 is installed on the cover 21 can be determined.

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

[0279] See Figure 27 and Figure 28The fourth limiting portion 2281 extends outward from both sides of the mounting portion 228 along a horizontal direction (e.g., the first direction). The fourth limiting portion 2281 can be located above the engaging portion 251 to restrict the movement of the engaging portion 251 in the vertical direction (the third direction), thereby improving the stability of the engagement and locking of the male fastening assembly 1 and the female fastening assembly 2.

[0280] See Figure 29 and Figure 30 The pressing member 24 may 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. Two pressing members 24 may be included, each pressing member 24 being provided with a connecting arm 245, with the two connecting arms 245 located on the upper and lower sides of the two pressing parts 241 respectively (see...). Figure 29 See also Figure 29 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 is connected to the engaging portion 251 on the right side of the locking portion 11 via a connecting arm 245 above the locking portion 11, and the pressing portion 241 on the right side of the locking portion 11 is connected to the engaging portion 251 on the left side of the locking portion 11 via a connecting arm 245 below the locking portion 11. When the two pressing portions 241 are pressed, the two engaging portions 251 on opposite sides can be pushed away from the locking portion 11 by the connecting arm 245 respectively.

[0281] A first elastic portion 242 may be respectively disposed on the upper and lower sides of the two pressing portions 241, and located between the two pressing portions 241. Each pressing portion 241 may have a locking end 244 formed at both its upper and lower ends. The locking end 244 extends away from the pressing portion 241 along a second direction. The first elastic portion 242 extends in a curved manner along a first direction to be elastic. Each end of the first elastic portion 242 is connected to a locking end 244. The first elastic portion 242 may be formed in an "M" shape, that is, the first elastic portion 242 is bent three times from one end to the other (or, forms two curved portions 2423). One of the first elastic portion 242 and the seat 22 may be provided with a positioning post 2422. The other of the first elastic portion 242 and the seat 22 may be provided with a positioning hole 223b. The positioning post 2422 may be located within the positioning hole 223b. See 29 and Figure 30 A positioning post 2422 can be formed at the second bend of the first elastic portion 242, and the base 22 can be provided with a positioning hole 223b. The positioning post 2422 can be located at the middle position along the length of the first elastic portion 242, so that each side of the positioning post 2422 has a bend 2423. The positioning post 2422 can be downward (towards) Figure 27The first elastic portion 242 extends vertically downwards (as shown) beyond its vertical dimension. It should be noted that in other embodiments not shown, the first elastic portion 242 may be bent multiple times (e.g., more than three times) from one end to the other; this application does not limit this. Optionally, a positioning post 2422 or a positioning hole 223b may be formed at the bend of the first elastic portion 242. The number of positioning posts 2422 or positioning holes 223b is not limited; one, two, or more may be provided depending on the number of bends.

[0282] See Figure 31 A locking hole 226 may be formed on the base 22. A second limiting portion 223a may be formed on the base 22. The second limiting portion 223a may be formed as two strip-shaped protrusions. For the specific structure of the second limiting portion 223a, please refer 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 base 22. Each positioning pin 2422 may be inserted into the corresponding positioning hole 223b (see...). Figure 30 and Figure 31 The positioning hole 223b restricts the movement of the positioning post 2422, thereby making the elastic deformation process of the first elastic part 242 more stable. In other words, since the middle part of the first elastic part 242 is fixedly connected to the seat 22, the stability of the elastic support of the pressing parts 241 on both sides in the horizontal direction can be ensured.

[0283] See Figure 29 and Figure 31A third limiting portion 223c may also be formed on the seat 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 effect of the third limiting portion 223c and the second limiting portion 223a on the connecting arm 245 makes the movement of the connecting arm 245 more stable and prevents the connecting arm 245 from shaking when it is engaged. The third limiting portion 223c may be formed on the upper and lower sides of the locking hole 226. The length of the third limiting portion 223c along the first direction may be less than the length of the second limiting portion 223a along the first direction, but this application is not limited thereto. The third limiting part 223c can be offset relative to the second limiting part 223a along the first direction to avoid obstructing the connection between the engaging part 251 and the connecting arm 245. The seat 22 and the fifth limiting part 214 together limit the movement of the connecting arm 245 in the vertical direction, and the second limiting part 223a and the third limiting part 223c together limit 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, thereby allowing the engaging part 251 to be released more smoothly when the pressing part 241 is pressed. Other structures of the seat 22 can be found in the fifth embodiment.

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

[0285] See also Figure 30 and Figure 33 The pressing part 241 may have an elongated groove 2413. The elongated groove 2413 may have a third notch 2412. Both the elongated groove 2413 and the third notch 2412 may be formed on the inner side of the pressing part 241 (the side facing the other pressing part 241). The dimension of the elongated groove 2413 along the second direction is larger than the dimension of the third notch 2412 along the second direction. The bottom of the elongated groove 2413 and the third notch 2412 may have a stop 2414. The elongated groove 2413 may cooperate with the engaging part 251, thereby providing clearance space for the release of the engaging part 251. Each fourth limiting part 2281 may be inserted into the corresponding third notch 2412, thereby limiting the stroke of the pressing part 241 along the first direction by the stop 2414. The third notch 2412 may cooperate with the fourth limiting part 2281 to prevent interference with the movement of the pressing member 24.

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

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

[0288] See Figures 35 to 39 The buckle 100s of the seventh embodiment of this application may include a male buckle component 1s and a female buckle component 2s. The male buckle component 1s may be partially inserted into the female buckle component 2s for being locked by the female buckle component 2s. The male buckle component 1s may be connected to a strap 5s. The strap 5s may secure the male buckle component 1s to a corresponding part of an infant carrier, stroller harness, high chair harness, backpack, or other possible items. The male buckle component 1s may also have a protruding locking portion 11s (see...). Figure 44 ).like Figure 44 As shown, an engagement groove 12s can be formed on the locking portion 11s. The engagement groove 12s can surround one circumference of the columnar locking portion 11s, but is not limited thereto. Although Figure 44 The male fastener 1s is shown to be circular; in embodiments not shown, the male fastener 1s may be rectangular or other shapes. The female fastener 2s may have a locking hole 226s (see [reference needed]). Figure 37 The locking part 11s can be inserted into the locking hole 226s along the third direction Z so that the male fastener assembly 1s and the female fastener assembly 2s are connected to each other.

[0289] See Figure 35 , Figure 37 and Figure 41 The female buckle assembly 2s may include a cover 21s, a seat 22s, a second connecting part 23s, a pressing part 24s, and a locking part 25s that are joined together.

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

[0291] The female fastener assembly 2s may have a second connecting portion 23s on one side. 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 side 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 22s along the first direction X, and exposed outside the space enclosed by the cover 21s and the seat 22s. The pressing portions 241s are used to operate the locking and unlocking of the male buckle assembly 1s and the female buckle assembly 2s. Openings may be formed on both sides of the cover 21s and the seat 22s for the pressing portions 241s to pass through.

[0293] The pressing member 24s can be linked with the locking member 25s. The pressing member 24s can actuate the locking member 25s so that the locking member 25s can operatively engage the locking portion 11s of the male buckle assembly 1s. The locking member 25s can engage with the locking portion 11s at the locking hole 226s. The pressing member 241s can be pressed along the first direction X to push the locking member 25s out of engagement with the locking portion 11s along the first direction X. Optionally, the pressing member 24s and the locking member 25s are integrally formed, but this is not a limitation. Optionally, the pressing member 24s and the locking member 25s can be independent components, but can be connected together.

[0294] The pressing member 24s may be integrally formed. Alternatively, the pressing member 24s may be composed of multiple independent components. The two pressing portions 241s of the pressing member 24s are connected to the ends of the two first elastic portions 242s along the second direction Y, respectively, such that the two pressing portions 241s and the two first elastic portions 242s form a ring, but this application is not limited thereto. The projections of the first elastic portions 242s and the pressing portions 241s along the first direction X do not overlap. The first elastic portions 242s may have a curved shape and provide an elastic force to move the two pressing portions 241s away from each other through elastic deformation. Two connecting arms 245s 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 away 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 can be arc-shaped to facilitate locking the cylindrical locking part 11s.

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

[0296] The first elastic portion 242s may have two curved portions 2423s. A positioning post 2422s may be provided between the two curved portions 2423s. Specifically, the first elastic portion 242s may be composed of two curved portions 2423s and a positioning post 2422s. The first elastic portion 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 portion 223as may be formed on the seat body 22s. The first limiting portion 223as may 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 movement direction of the two connecting arms 245s, that is, to make the two connecting arms 245s and the two pressing portions 241s only able to move along the first direction X. The first limiting portion 223as can limit the compressed state of the first elastic portion 242s by abutting against the first elastic portion 242s. A positioning hole 223bs may be formed on the side of the first limiting portion 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 be inserted into the corresponding positioning hole 223bs on the side along the third direction Z (see Figure 40 and Figure 41 The positioning hole 223bs can restrict the movement of the positioning post 2422s, thereby making the elastic deformation process of the first elastic part 242s more stable. In other words, since the middle part of the first elastic part 242s is fixedly connected to the seat 22s, the stability of the elastic support of the pressing parts 241s on both sides 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 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. The two second limiting portions 223cs may be 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 this application is not limited thereto. The second limiting portion 223cs can be offset relative to the first limiting portion 223as along the first direction X to avoid obstructing the connection between the engaging member 25s and the connecting arm 245s. Protrusions 224as can be formed on both sides of the locking hole 226s along the first direction X. The protrusions 224as can be parallel to the second limiting portion 223cs. The protrusions 224as can 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 22s. A protruding connecting cylinder 215s may be formed on the inner side of the cover 21s. In another embodiment, a protruding connecting cylinder 215s may be formed on the inner side of the seat 22s, and a protruding connecting post 227s may be formed on the inner side of the cover 21s. When the seat 22s and the cover 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. Ultrasonic welding may be formed on the connecting post 227s and the connecting cylinder 215s. Optionally, ultrasonic welding may also be formed in the area surrounding the connecting post 227s and the connecting cylinder 215s, for example, in the circumferential edge area where the seat 22s and the cover 21s mate. This application is not limited to the arrangement position described herein.

[0300] Ultrasonic welding allows for a smaller gap between the seat 22s and the cover 21s. Ultrasonic welding ensures that when a torque of 100 Newtons (N) is applied to the fastener 100, there will be no opening larger than 0.5 mm.

[0301] In one embodiment, the base 22s has connecting posts 227s on both sides along the second direction Y. Specifically, the base 22s may have two connecting posts 227s. The cover 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 receiving portion 211s may be formed on the cover 21s. The first magnet receiving portion 211s may be formed in a generally cylindrical shape. A rib 212s may be formed on the outer side of the first magnet receiving portion 211s. The rib 212s may extend circumferentially along the first magnet receiving portion 211s. The first magnet receiving portion 211s can be used to receive a magnet. The length of the rib 212s may not exceed half the circumference of the first magnet receiving portion 211s, but this application is not limited thereto. Two ribs 212s may be symmetrically formed on the first magnet receiving portion 211s, but this application is not limited thereto. Ribs 213s may also be formed on the outer side of the first magnet receiving portion 211s. Ribs 213s may extend axially along the first magnet receiving portion 211s. Two ribs 213s may be symmetrically formed on the first magnet receiving portion 211s, but this application is not limited thereto.

[0303] A fifth limiting portion 214s may be formed on the cover 21s. The fifth limiting portion 214s may extend along a third direction Z to prevent the connecting arm 245s from moving along the third direction Z, thereby making 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 21s. The two fifth limiting portions 214s may be located on both sides of the first magnet receiving portion 211s along the second direction Y. The fifth limiting portion 214s may have an annular shape, and the annulus may have reinforcing ribs 219s, but this application is not limited thereto.

[0304] See Figure 42 and Figure 43One of the cover 21s and the seat 22s may have resilient fingers (clasp arms) 218s, and the other of the cover 21s and the seat 22s may have a slot 228s. In this embodiment, the cover 21s may have resilient fingers 218s, and the seat 22s may have a slot 228s. In another embodiment, the cover 21s may have a slot 228s, and the seat 22s may have resilient fingers 218s. The resilient fingers 218s cooperate with the slots 228s to engage the cover 21s and the seat 22s or to provide at least a portion of the bonding force between the cover 21s and the seat 22s. Optionally, the resilient fingers 218s and the slots 228s are ultrasonically welded. The cover 21s may have four resilient fingers 218s, and the seat 22s may correspondingly have four slots 228s, but this application is not limited thereto.

[0305] The cover 21s may have edge mating portions 217s at both ends along the second direction Y. That is, the edge mating portions 217s are formed at the outer peripheral edge of the cover 21s. The edge mating portions 217s may be formed into an elongated shape extending along the first direction X, but this application is not limited thereto. Optionally, the edge mating portions 217s are ultrasonically welded to the outer peripheral edge of the base 22s.

[0306] The cover 21s may have an inner mating portion 216s at the position corresponding to the positioning post 2422s. That is, the first magnet receiving portion 211s has an inner mating portion 216s on each side along the second direction Y. The mating portions 216s correspond to the positions of the positioning posts 2422s, and the two abut against each other, which allows the positioning posts 2422s to better cooperate with the first limiting portion 223as, thereby limiting the movement of the positioning posts 2422s in the third direction Z and preventing the positioning posts 2422s from disengaging from the first limiting portion 223as, while also enhancing the strength of the cover 21s. Optionally, the side of each positioning post 2422s facing the cover 21s along the third direction Z may be ultrasonically welded to the inner mating portion 216s, and / or the positioning posts 2422s may be ultrasonically welded to the first limiting portion 223as.

[0307] When it is necessary to lock the male fastener 1s and the female fastener 2s, the male fastener 1s is inserted into the female fastener 2s along the third direction Z, so that the locking part 11s enters the locking hole 226s. When the locking part 11s enters the locking hole 226s, the locking part 11s moves along the third direction Z, pushing the locking member 25s to move to both sides along the first direction X, thereby allowing the locking part 11s to further enter the locking hole 226s. Then, under the elastic force of the first elastic part 242s, the locking member 25s returns to the unpushed position and enters the engagement groove on the locking part 11s, thereby achieving locking. That is, the first elastic part 242s provides an elastic force that tends to lock the locking member 25s with the male fastener 1s.

[0308] When it is necessary to unlock the male buckle assembly 1s and the female buckle assembly 2s, press the two pressing parts 241s simultaneously, causing the locking member 25s to move to both sides along the first direction X and leave the engagement groove 12s on the locking part 11s. Then, the male buckle assembly 1s moves away from the locking hole 226s along the third direction Z, thereby separating the male buckle assembly 1s from the female buckle assembly 2s.

[0309] The eighth embodiment of this application will be described below.

[0310] See Figures 45 to 47 The buckle 100s of the eighth embodiment of this application may include a male buckle component 1s and a female buckle component 2s. The male buckle component 1s may be partially inserted into the female buckle component 2s for being locked by the female buckle component 2s. The male buckle component 1s may be connected to a strap 5s. The strap 5s may secure the male buckle component 1s to a corresponding part of an infant carrier, stroller harness, high chair harness, backpack, or other possible items.

[0311] See Figure 45 and Figure 48 The female fastener assembly 2s may include a cover 21s, a seat 22s, a second connecting part 23s, and a pressing member 24s that are joined together. Figure 41 ) and locking piece 25s.

[0312] See Figures 47 to 47B The female fastener 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 may receive a first magnet 3s. The cover 21s may cooperate with the mounting portion 228s to seal the first magnet 3s.

[0313] The first magnet receiving portion 211s can be centrally located 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 can have protruding ribs 2285s. The protruding ribs 2285s can be used to fix the first magnet 3s. The inner side of the first magnet receiving portion 211s can have four evenly distributed protruding ribs 2285s, but this application is not limited thereto.

[0314] The female fastener assembly 2s may include a pressing member 24s. The pressing member 24s may include a pressing part 241s, a first elastic part 242s, and a connecting arm 245s. The first elastic part 242s may include a positioning post 2422s. The pressing part 241s is connected to the engaging part 251s via the connecting arm 245s. For the specific structure of the pressing member 24s, please refer to the pressing member 24s in the seventh embodiment.

[0315] The mounting portion 228s may have a fourth limiting portion 2281s on each of its two sides along the first direction X. The fourth limiting portion 2281s may have a "T" shaped cross-section. That is, the fourth limiting portion 2281s may be formed as a flat plate with a rib formed on its surface. The fourth limiting portion 2281s may restrict the movement of the engaging portion 251s in the third direction Z.

[0316] The mounting portion 228s may have holes 2283s on both sides along the second direction Y. The holes 2283s allow the fifth limiting portion 214s on the cover 21s to be inserted into, thereby positioning the mounting portion 228s relative to the cover 21s.

[0317] The mounting portion 228s may have a groove 2284s on the side of the hole 2283s away from the first magnet receiving portion 211s. The groove 2284s can avoid the positioning post 2422s on the first elastic portion 242s of the pressing member 24s.

[0318] See Figure 48 and Figure 49 A first limiting portion 223as may be formed on the seat 22s. The pressing member 24s may include two pressing portions 241s, two first elastic portions 242s, and two connecting arms 245s. The first limiting portion 223as may be formed as two strip-shaped protrusions. These two strip-shaped protrusions are parallel to each other and extend along a first direction X to limit the movement direction of the two connecting arms 245s, that is, to allow the two connecting arms 245s and the two pressing portions 241s to move only along the first direction X. The first limiting portion 223as can limit the compressed state of the first elastic portion 242s by abutting against it.

[0319] A second limiting portion 223cs may also be formed on the seat 22s. The second limiting portion 223cs may be parallel to the first limiting portion 223as. The female buckle assembly 2s may have a locking hole 226s. The locking hole 226s may be located at the center of the seat 22s. 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. Specifically, two second limiting portions 223cs may be formed on the seat 22s. Two second limiting portions 223cs may be formed on both sides of the locking hole 226s along the second direction Y. The second limiting portions 223cs may be offset relative to the first limiting portion 223as along the first direction X to avoid obstructing the connection between the engaging member 25s and the connecting arm 245s.

[0320] A positioning hole 223bs can be formed on the side of the first limiting part 223as away from the locking hole 226s. Two positioning holes 223bs can be formed on the seat body 22s. Each first elastic part 242s can have a positioning post 2422s. Each positioning post 2422s can extend along the third direction Z and is inserted into the corresponding positioning hole 223bs on the side of the third direction Z that is close to the positioning hole 223bs. The positioning post 2422s extends beyond the other parts of the first elastic part 242s on both sides along the third direction Z. The positioning hole 223bs can restrict the movement of the positioning post 2422s, thereby making the elastic deformation process of the first elastic part 242s more stable. In other words, since the middle part of the first elastic part 242s is fixedly connected to the seat body 22s, the stability of the elastic support of the pressing parts 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 22s. A protruding connecting cylinder 215s may be formed on the inner side of the cover 21s. When the seat 22s and the cover 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 can be fixed together by ultrasonic welding. The seat 22s may have two connecting posts 227s, and the cover 21s may have two connecting cylinders 215s.

[0322] The seat 22s may have a first welding surface 221s and a second welding surface 222s on both sides along the second direction Y. The first welding surface 221s faces the cover 21s (i.e., faces the third direction Z). The second welding surface 222s faces the inner side of the seat 22s (i.e., faces the direction within the plane formed by the first direction X and the second direction Y). That is, the first welding surface 221s and the second welding surface 222s may be perpendicular to each other, but this application is not limited thereto. In other embodiments, the first welding surface 221s and the second welding surface 222s may be at an angle to each other. The first welding surface 221s and the second welding surface 222s may both be curved shapes along the contour of the outer peripheral edge of the seat 22s.

[0323] A fifth limiting portion 214s may be formed on the cover 21s. The fifth limiting portion 214s may extend along a third direction Z to prevent the connecting arm 245s from moving along the third direction Z, thereby making the movement of the connecting arm 245s along the first direction X smoother. Two fifth limiting portions 214s may be formed on the cover 21s. Unlike 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 this application is not limited thereto. There may be an abutting rib 204s between the fifth limiting portions 214s and the connecting cylinders 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, but this application is not limited thereto.

[0324] See Figure 50 and Figure 52 The cover 21s may have a first step 201s, a second step 202s, and a third step 203s on both sides along the second direction Y. The first step 201s, the second step 202s, and the third step 203s may face the outer side of the cover 21s. The first step 201s, the second step 202s, and the third step 203s may be staggered from each other along the third direction Z. The first step 201s, the second step 202s, and the third step 203s may all be curved shapes along the contour of the outer peripheral edge of the cover 21s.

[0325] See Figure 51The 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, and the third step 203s and the first welding surface 221s and the second welding surface 222s can improve the bonding strength between the cover 21s and the seat 22s. It can be understood that the first welding surface 221s and the second welding surface 222s are located on both sides of the seat 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 21s along the second direction Y, so that the cover 21s and the seat 22s are bonded to each other by ultrasonic welding and form an ultrasonic welding area. In other words, the cover 21s and the seat 22s form an ultrasonic welding area, which is located on both sides of the female buckle assembly 2s along the second direction Y, while 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 on the outer peripheral edges of both sides of the female buckle assembly 2s along the second direction Y, and space is reserved on both sides of the female buckle assembly 2s along the first direction X to accommodate the pressing part 24s, making the structure more compact. Other aspects of the eighth embodiment can be found in the seventh embodiment, and will not be repeated 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] Features in the seventh and eighth embodiments can be combined in combination without 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 combinations, but embodiments obtained by combining features from the seventh and eighth embodiments are also included in the scope of this application.

[0328] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the claims.

[0329] Although this application has been described with reference to exemplary embodiments, the terminology used is descriptive and exemplary, and not restrictive. Because this application can be embodied in many forms without departing from its spirit and essence, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted in the broadest possible sense within the scope defined by the claims. Therefore, all variations falling within the scope of the claims or their equivalents should be covered by the claims.

Claims

1. A fastener, characterized in that, The fastener includes a male fastener assembly with a locking portion and a female fastener assembly with a locking hole. The locking portion can be inserted into the locking hole to form a magnetic connection between the male fastener assembly and the female fastener assembly. The female fastener assembly includes a base, a pressing member, and a locking member. The locking member engages with the locking portion at the locking hole. The pressing member includes a pressing portion and a first elastic portion. The pressing portion is pressed along a first direction to push the locking member out of engagement with the locking portion. The projections of the first elastic portion and the pressing portion along the first direction do not overlap.

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

3. The fastener according to claim 1, characterized in that, The pressing member includes a pushing end, and the locking member includes an abutting end. The pressing part pushes the abutting end with the pushing end to push the locking member to move along a second direction and disengage from the locking part. The second direction is intersecting with the first direction.

4. The fastener according to claim 1, characterized in that, The locking member includes an engaging portion, which engages with or disengages from the locking portion.

5. The fastener 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 disposed along a second direction; one end of the second elastic portion is connected to the abutment end, the other end of the second elastic portion and one of the bases form a connecting hole, and the other end of the second elastic portion and the other of the bases form a connecting post, with the connecting hole sleeved on the connecting post.

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

7. The fastener according to claim 1, characterized in that, The locking hole is formed in the base.

8. The fastener according to claim 1, characterized in that, A second limiting portion is formed on the base, the second limiting portion being formed as two strip-shaped protrusions, the two strip-shaped protrusions being parallel to each other and extending along the first direction. A third limiting portion is formed on the base body. The third limiting portion is formed on the side of the second limiting portion near the locking hole. The third limiting portion is formed as two strip-shaped protrusions and is parallel to the second limiting portion.

9. The fastener 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 part and the second limiting part.

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

11. The fastener according to claim 10, characterized in that, The first elastic part includes two curved parts, and the positioning post or the positioning hole is disposed between the two curved parts.

12. The fastener according to claim 1, characterized in that, The fastener includes a mounting portion separate from the base body, the base body is provided with a first magnet receiving portion, the mounting portion is fastened to the outside of the first magnet receiving portion, or the mounting portion is provided with a first magnet receiving portion.

13. The fastener according to claim 1, characterized in that, The pressing member is provided with a connecting arm along the first direction, and the pressing member and the locking member are connected through the connecting arm. 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 to release the locking member along the first direction.

14. The fastener according to claim 1, characterized in that, The female buckle assembly also includes a cover body, which is fixed to the seat body and at least partially surrounds the pressing member and the locking member, the pressing member and the locking member being linked, and the cover body and the seat body being joined together by ultrasonic welding.

15. The fastener according to claim 14, characterized in that, A protruding connecting post is formed on the inner side of one of the base and the cover, and a protruding connecting cylinder is formed on the inner side of the other of the base and the cover, and the connecting post is inserted into the connecting cylinder; and / or One of the cover and the seat has a resilient finger, and the other of the cover and the seat has a snap-fit ​​hole, the resilient finger engaging with the snap-fit ​​hole to engage the cover and the seat.

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

17. The fastener according to claim 14, characterized in that, The outer peripheral edge of the cover has a first step, a second step, and a third step, and the outer peripheral edge of the seat 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 seat form an ultrasonic welding area, which is located on both sides of the female buckle assembly along the second direction. The pressing member includes a pressing part, which is located on both sides of the female buckle assembly along the first direction.

18. A fastener, characterized in that, The fastener includes: a male fastener assembly with a locking portion and a female fastener assembly with a locking hole, wherein the locking portion can be inserted into the locking hole to form a magnetic connection between the male fastener assembly and the female fastener assembly, and the female fastener assembly includes a base, a pressing member and a locking member, wherein the locking member engages with the locking portion at the locking hole; The pressing member is provided with a connecting arm along a first direction, and the pressing member and the locking member are connected through the connecting arm. The pressing member and the locking member are respectively located on both sides of the locking hole along the first direction. The pressing component includes two pressing parts and a first elastic part, with both ends of the first elastic part connected to the two pressing parts respectively.

19. The fastener according to claim 18, characterized in that, The ends of the two pressing parts are provided with two opposing snap-fit ​​ends, and the first elastic part is disposed between the two snap-fit ​​ends of the two pressing parts along the first direction.

20. The fastener according to claim 18, characterized in that, The locking member includes an engaging portion, on which a first recess is formed, and on the seat body a first protrusion is formed to mate with the first recess. The first recess and / or the first protrusion extend along the first direction, and / or A second recess is formed on the first elastic portion, and a second protrusion is formed on the seat body to cooperate with the second recess. The second recess and / or the second protrusion extend along a second direction.

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

22. A fastener, characterized in that, The fastener includes a male fastener assembly with a locking portion and a female fastener assembly with a locking hole. The locking portion can be inserted into the locking hole to form a magnetic connection between the male fastener assembly and the female fastener assembly. The female fastener assembly includes a base, a pressing member, and a locking member. The locking member engages with the locking portion at the locking hole. The pressing member includes a pressing portion and a first elastic portion. The pressing member is provided with a connecting arm along the first direction, and the pressing member and the locking member are connected through the connecting arm. The pressing member and the locking member are respectively located on both 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 part is connected to the connecting arm, and a second end of the first elastic part is detachably connected to the fixed end.

23. The fastener according to claim 22, characterized in that, The connecting arm has an extension at one end near the pressing part connected to it, the extension extends in a second direction, and the first end of the first elastic part is connected to the extension.

24. The fastener according to claim 23, characterized in that, 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 to perform limiting, and the second limiting end cooperates with the pressing part to perform limiting. The first limiting end and the second limiting end respectively limit the pressing part at both ends of its movement along the first direction.

25. A fastener, characterized in that, The fastener includes: a male fastener assembly with a locking portion and a female fastener assembly with a locking hole, wherein the locking portion can be inserted into the locking hole to form a magnetic connection between the male fastener assembly and the female fastener assembly, and the female fastener assembly includes a base, a pressing member and a locking member, wherein the locking member engages with the locking portion at the locking hole; The pressing component includes a first pressing part and a second pressing part located on both sides of the locking hole, as well as a first connecting arm and a second connecting arm. The locking component includes a first engaging part and a second engaging part located on both sides of the locking hole. The first connecting arm connects the first pressing part and the first engaging part, which are located on both sides of the locking hole; the second connecting arm connects the second pressing part and the second engaging part, which are located on both sides of the locking hole. The pressing member further includes a first elastic portion, which 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.

26. The fastener according to claim 25, characterized in that, The first pressing part and / or the end of the second pressing part have a protruding snap-fit ​​end, and a limiting end corresponding to the snap-fit ​​end is formed on the seat body, the snap-fit ​​end being located inside the limiting end.

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