A fastener

Abstract

The utility model discloses a fastener, it includes main fastener, the bottom of this main fastener is connected with lower fastener, the inner surface of this main fastener is equipped with lock catch recess, the lock catch recess is equipped with movable lock catch button, the middle part of this lower fastener is equipped with the lock catch boss that projects upward, the middle part of this lock catch recess is equipped with the boss slot through groove corresponding with this lock catch boss, this lock catch boss is through and is equipped in this boss slot through groove, and with this lock catch button form lock -up cooperation and connect, thereby realize the locking connection between this main fastener and this lower fastener. The fastener of the utility model not only has the function of quick assembly and disassembly, still has good positioning, stability and security, can be widely applied to the wearing device such as baby sling that needs high safety standard, improves the overall use convenience and practicality.

Description

Technical Field

[0001] This utility model belongs to the technical field of baby carrier accessories, specifically relating to a buckle for a baby carrier. Background Technology

[0002] Baby carriers are commonly used assistive tools for infant travel or daily care, and their structural design must balance load-bearing capacity, safety, and convenience. Among these, the buckles, as key connecting components, directly affect the carrier's sturdiness and the user's operating experience.

[0003] In existing technologies, most common baby carrier buckles use mechanical snap-fit ​​structures, relying on the interlocking of a tongue and a slot to connect the main and auxiliary buckles. While this type of structure provides some basic locking functionality, it still has shortcomings. The locking structure is not reliable; some buckles rely on a single snap-fit ​​mechanism for fixation, making them prone to loosening due to the baby's movement or pulling, posing a safety hazard. There is a lack of auxiliary positioning mechanisms; most existing buckles do not have clear guide or limiting structures, making it easy for parts to misalign during assembly, affecting the accuracy and efficiency of locking. Unlocking is inconvenient; many buckles require significant pressure or both hands to unlock, making it difficult for caregivers to use with one hand, reducing convenience. Furthermore, structural reinforcement is not considered; most buckles rely solely on physical snap-fit, lacking multiple auxiliary fixing methods such as magnetic attraction, resulting in weak overall stability and anti-interference capabilities.

[0004] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Utility Model Content

[0005] In view of the technical problems mentioned in the background art, the purpose of this utility model is to provide a fastener to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fastener comprising a main fastener, a lower fastener connected to the bottom of the main fastener, a locking groove on the inner surface of the main fastener, a movable locking button within the locking groove, a locking protrusion protruding upward in the middle of the lower fastener, and a protrusion through groove corresponding to the locking protrusion in the middle of the locking groove, the locking protrusion passing through the protrusion through groove and forming a locking engagement with the locking button, thereby achieving a locking connection between the main fastener and the lower fastener.

[0007] Furthermore, the latch button has symmetrical elastic latch springs on both sides, and each end of the latch springs is provided with a connecting latch. The upper outer side of the latch protrusion is recessed with an annular latch recess, and the upper side of the protrusion groove is provided with a latch through-hole for the connecting latch to pass through. Under the elastic action of the latch springs, the two connecting latches enter the protrusion groove through the latch through-hole and are engaged and positioned in the latch recess, thereby realizing the locking connection and fixation between the latch button and the latch protrusion.

[0008] Furthermore, the inner sides of the latch groove are symmetrically provided with limiting protrusions, and the side of the latch spring is provided with a limiting groove corresponding to the limiting protrusion. The size of the limiting groove is larger than the size of the limiting protrusion, and a limiting connection is formed between the limiting protrusion and the limiting groove.

[0009] Furthermore, symmetrical positioning protrusions are provided on both sides of the protruding post through the groove, and symmetrical pressing buttons are provided on both sides of the locking button. A protruding positioning groove is provided between the two pressing buttons, and the positioning protrusion and the protruding positioning groove form an interlocking connection.

[0010] Furthermore, the upper end of the protruding post through the groove is provided with a first magnet mounting groove, in which a first reinforcing magnet is installed. The inside of the locking protruding post is recessed with a second magnet mounting groove, in which a second reinforcing magnet is installed. The first reinforcing magnet and the second reinforcing magnet attract each other to form an auxiliary magnetic connection.

[0011] Furthermore, a fastener cover plate is installed above the locking groove. The inner edge of the locking groove is evenly provided with a number of snap-fit ​​positions, and the inner edge of the fastener cover plate is evenly provided with a number of corresponding connecting snaps. The connecting snaps are arranged one-to-one with the snap-fit ​​positions, and the connecting snaps can be inserted into and locked in the snap-fit ​​positions, thereby allowing the fastener cover plate to be installed above the locking groove.

[0012] The present invention has the following advantages: the bottom of the main fastener is connected to a lower fastener. The inner surface of the main fastener is provided with a locking groove, and a movable locking button is provided in the locking groove. The middle of the lower fastener is provided with an upwardly protruding locking protrusion. The middle of the locking groove is provided with a protrusion groove corresponding to the locking protrusion. The locking protrusion passes through the protrusion groove and forms a locking engagement with the locking button, thereby realizing the locking connection between the main fastener and the lower fastener. The buckle of the present invention not only has the function of quick assembly and disassembly, but also has good positioning, stability and safety. It can be widely used in wearable devices that require high safety standards, such as baby carriers, improving the overall ease of use and practicality. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model.

[0015] Figure 3 This is a schematic diagram of the lower fastener structure of this utility model.

[0016] Figure 4 This is a schematic diagram of the fastener cover plate structure of this utility model.

[0017] Reference numerals: Main fastener 10; Lower fastener 20; Locking groove 11; Locking button 30; Locking protrusion 21; Protrusion through groove 12; Locking spring part 31; Connecting lock 32; Locking recess 211; Locking through opening 121; Limiting protrusion 13; Limiting groove 311; Positioning protrusion 122; Press button 33; Protrusion positioning groove 331; First magnet mounting groove 123; First reinforcing magnet 14; Second magnet mounting groove 212; Second reinforcing magnet 22; Fastener cover plate 40; Snap fastener 111; Connecting snap fastener 41. Detailed Implementation

[0018] like Figures 1 to 4 As shown, a fastener includes a main fastener 10, with a lower fastener 20 connected to its bottom. The inner surface of the main fastener 10 has a locking groove 11, within which a movable locking button 30 is located. The lower fastener 20 has an upwardly protruding locking protrusion 21 in its center. The locking groove 11 has a corresponding protrusion slot 12 in its center, through which the locking protrusion 21 passes and engages with the locking button 30, thus achieving a locking connection between the main fastener 10 and the lower fastener 20. During use, when unlocking is required, the user can simultaneously press both sides of the locking button 30, causing it to press inward and disengage from the locking protrusion 21. At this time, the lower fastener 20 can separate from the bottom of the main fastener 10, achieving a quick and safe unlocking operation.

[0019] In practical implementation, the locking button 30 is symmetrically provided with elastic locking springs 31 on both sides, and each end of the locking springs 31 is provided with a connecting lock 32. The upper outer side of the locking protrusion 21 is recessed with an annular locking recess 211. The upper side of the protrusion groove 12 is provided with a locking opening 121 for the connecting lock 32 to pass through. During the fastening process, when the locking protrusion 21 is inserted into the protrusion groove 12 from bottom to top, the two connecting locks 32 enter the protrusion groove 12 through the locking opening 121 under the elastic action of the locking springs 31, and finally engage and be positioned in the locking recess 211, thereby realizing the locking connection and fixation between the locking button 30 and the locking protrusion 21, ensuring the stability of the fastener structure and the safety during use. When unlocking is required, the user can press both sides of the buckle button 30 at the same time to deform the buckle spring 31, causing the connecting buckle 32 to disengage from the buckle recess 211. At this time, the lower buckle 20 can be separated from the bottom of the main buckle 10, realizing a quick and safe unlocking operation. The operation is simple and quick, and can be completed with one hand. It is especially suitable for scenarios with high requirements for convenience and safety, such as baby carriers.

[0020] In practical implementation, the inner sides of the locking groove 11 are symmetrically provided with limiting protrusions 13, and the side of the locking spring 31 is provided with a limiting groove 311 corresponding to the limiting protrusion 13. The size of the limiting groove 311 is larger than the size of the limiting protrusion 13. The limiting protrusion 13 and the limiting groove 311 form a limiting connection structure, ensuring that the locking spring 31 can slide along a predetermined trajectory during its movement or pressing, preventing the locking spring 31 from lateral displacement or swinging. In use, the limiting structure effectively constrains the movement range of the locking spring 31, improves the operational stability and sensitivity of the locking button 30, avoids jamming or operational failure caused by component position deviation, and improves the overall user experience and reliability of the fastener.

[0021] In practical implementation, the two sides of the protruding post through groove 12 are symmetrically provided with positioning protrusions 122 for positioning, and the two sides of the locking button 30 are symmetrically provided with pressing buttons 33. The two pressing buttons 33 are provided with protruding positioning grooves 331 for limiting cooperation. The positioning protrusions 122 and the protruding positioning grooves 331 form a plug-in connection. During use, the positioning protrusions 122 are inserted into the protruding positioning grooves 331 to play a guiding and limiting role, so that the pressing buttons 33 keep the direction consistent when sliding and pressing, avoiding the locking spring part 31 from deviating or jamming during operation, ensuring smooth locking and unlocking actions, and further improving the structural stability and operating feel of the buckle.

[0022] In practical implementation, the upper end of the protruding post through groove 12 is provided with a first magnet mounting groove 123, in which a first reinforcing magnet 14 is installed. The interior of the locking protruding post 21 is recessed with a second magnet mounting groove 212, in which a second reinforcing magnet 22 is installed. The first reinforcing magnet 14 and the second reinforcing magnet 22 are correspondingly arranged. When the locking protruding post 21 is inserted into the protruding post through groove 12, the first reinforcing magnet 14 and the second reinforcing magnet 22 attract each other, forming an auxiliary magnetic connection. During the locking process, in addition to the mechanical engagement between the connecting latch 32 and the latch recess 211, the first reinforcing magnet 14 and the second reinforcing magnet 22 further form a magnetic attraction, effectively enhancing the connection strength between the main fastener 10 and the lower fastener 20, preventing loosening due to external vibration or accidental pulling, and improving the overall stability and safety of the fastener.

[0023] In practical implementation, a fastener cover plate 40 is installed above the locking groove 11 to close and protect the locking structure. The inner edge of the locking groove 11 is evenly provided with several snap-fit ​​positions 111, and the inner edge of the fastener cover plate 40 is evenly provided with several corresponding connecting snaps 41. These connecting snaps 41 and snap-fit ​​positions 111 are arranged in a one-to-one correspondence. During assembly, the connecting snaps 41 can be inserted and locked into the snap-fit ​​positions 111, thereby securing the fastener cover plate 40 firmly above the locking groove 11, forming a reliable fixed connection structure. This structure not only ensures the protection and safety of the internal locking structure of the fastener but also facilitates later maintenance or replacement, exhibiting good assembly reliability and practicality.

[0024] In summary, the bottom of the main fastener 10 is connected to a lower fastener 20. The inner surface of the main fastener 10 is provided with a locking groove 11, and a movable locking button 30 is provided in the locking groove 11. The middle of the lower fastener 20 is provided with an upwardly protruding locking protrusion 21. The middle of the locking groove 11 is provided with a protrusion through groove 12 corresponding to the locking protrusion 21. The locking protrusion 21 passes through the protrusion through groove 12 and forms a locking engagement with the locking button 30, thereby realizing the locking connection between the main fastener 10 and the lower fastener 20. The buckle of this utility model not only has the function of quick assembly and disassembly, but also has good positioning, stability and safety. It can be widely used in wearable devices that require high safety standards, such as baby carriers, improving the overall ease of use and practicality.

Claims

1. A fastener, characterized in that, It includes a main fastener (10), the bottom of which is connected to a lower fastener (20). The inner surface of the main fastener (10) is provided with a locking groove (11), and a movable locking button (30) is provided in the locking groove (11). The middle part of the lower fastener (20) is provided with an upwardly protruding locking protrusion (21). The middle part of the locking groove (11) is provided with a protrusion through groove (12) corresponding to the locking protrusion (21). The locking protrusion (21) passes through the protrusion through groove (12) and forms a locking engagement with the locking button (30), thereby realizing the locking connection between the main fastener (10) and the lower fastener (20).

2. The fastener according to claim 1, characterized in that, The locking button (30) has elastic locking springs (31) symmetrically arranged on both sides. Each end of the locking springs (31) is provided with a connecting lock (32). The upper outer side of the locking protrusion (21) is recessed with an annular locking recess (211). The upper side of the protrusion groove (12) is provided with a locking opening (121) for the connecting lock (32) to pass through. Under the elastic action of the locking springs (31), the two connecting locks (32) enter the protrusion groove (12) through the locking opening (121) respectively and are locked and positioned in the locking recess (211), thereby realizing the locking connection and fixation between the locking button (30) and the locking protrusion (21).

3. The fastener according to claim 2, characterized in that, The inner sides of the locking groove (11) are symmetrically provided with limiting protrusions (13), and the side of the locking spring (31) is provided with a limiting groove (311) corresponding to the limiting protrusion (13). The size of the limiting groove (311) is larger than the size of the limiting protrusion (13), and a limiting connection is formed between the limiting protrusion (13) and the limiting groove (311).

4. The fastener according to claim 3, characterized in that, The two sides of the protruding groove (12) are symmetrically provided with positioning protrusions (122), and the two sides of the locking button (30) are symmetrically provided with pressing buttons (33). The two pressing buttons (33) are provided with protruding positioning grooves (331) opposite to each other. The positioning protrusions (122) and the protruding positioning grooves (331) form a plug-in connection.

5. The fastener according to claim 4, characterized in that, The upper end of the protruding post through groove (12) is provided with a first magnet mounting groove (123), in which a first reinforcing magnet (14) is installed. The inside of the locking protruding post (21) is recessed with a second magnet mounting groove (212), in which a second reinforcing magnet (22) is installed. The first reinforcing magnet (14) and the second reinforcing magnet (22) attract each other to form an auxiliary magnetic connection.

6. The fastener according to claim 1, characterized in that, A fastener cover plate (40) is installed above the locking groove (11). The inner edge of the locking groove (11) is evenly provided with a number of snap-fit ​​positions (111). The inner edge of the fastener cover plate (40) is evenly provided with a number of corresponding connecting snaps (41). The connecting snaps (41) and the snap-fit ​​positions (111) are arranged in a one-to-one correspondence. The connecting snaps (41) can be inserted into and locked in the snap-fit ​​positions (111), so that the fastener cover plate (40) is installed above the locking groove (11).

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