A magnetic clasp

Abstract

This invention relates to a magnetic snap fastener, comprising a female snap fastener and a female snap fastener. The female snap fastener includes a housing, a top cover, buttons on both sides, a locking assembly, and a locking plate. The locking plate is linked to the locking assembly and contains a first magnet. The female snap fastener has a protruding engaging post with a recessed engaging groove on its side wall. The bottom of the female snap fastener has an installation cavity, and the engaging post contains a second magnet. The engaging post is guided into the installation cavity by magnetic attraction, and the locking assembly engages with the engaging groove for locking. When engaged, only close proximity is required; no calibration is needed. Pressing the button causes the locking assembly to move away from the engaging groove. Simultaneously, the locking assembly causes the locking plate to move upward, increasing the distance between the first and second magnets. Pressing to unlock also reduces the magnetic attraction force, allowing the user to remove the female snap fastener with less force, making it easier and more convenient to use.

Description

Technical Field

[0001] This invention relates to the field of fastener technology, and in particular to a magnetic fastener. Background Technology

[0002] Many components on backpacks, baby carriers, child safety seats, and baby hip seats require webbing and fasteners for secure fastening. These fasteners are used to connect or maintain a specific position and typically need to be quick and easy to release. For example, baby hip seats and baby carriers frequently require connection and release, which is achieved through fasteners. Common fasteners usually include male and female buckles, which facilitate user fixation and unlocking. To further simplify the engagement of male and female buckles, magnetic fasteners have also been invented, using magnetic attraction to guide the male and female buckles into place.

[0003] Existing magnetic snaps have magnets on both the male and female snaps, and they are attracted to each other by the mutual magnetic attraction of the two magnets. However, the attraction between the two magnets may not be strong enough, and they may come loose during use. Therefore, it is necessary to add a locking structure to further increase the connection strength. The locking structure is usually unlocked by a button.

[0004] When a user needs to remove the female buckle, pressing the button releases the locking mechanism, but the two magnets remain in an attracted state, requiring considerable force to remove the female buckle. The existing magnetic buckle is not easy to remove the female buckle and is quite laborious, resulting in a mediocre user experience. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this invention provides a magnetic clasp. To solve the above-mentioned technical problems, this invention provides the following technical solution: A magnetic snap fastener includes a female snap fastener and a female snap fastener that can be fastened to each other. The female snap fastener includes a housing, an upper cover covering the housing, buttons on both sides that can move left and right, a locking component connected to one end of the buttons and that can move back and forth, and a locking plate installed above the locking component that can move up and down. The locking plate is linked to the locking component, and a first magnet is provided inside the locking plate. The male buckle is provided with a protruding engaging post, and the side wall of the engaging post is provided with a concave engaging groove. The bottom of the female buckle is provided with an installation cavity adapted to the engaging post, and a second magnet is provided inside the engaging post. The locking component has a first inclined surface on the side near the button and a second inclined surface on the inside of the button. The first inclined surface and the second inclined surface are adapted to each other. When the button is pressed, the second inclined surface is displaced along the first inclined surface, and the locking component is moved by the inclined surface. The locking plate has extension posts extending from both the front and rear ends. The bottom of the extension posts has a first inclined surface, and the top of the locking assembly has a second inclined surface. The first inclined surface is attached to the second inclined surface, and the locking plate is moved by pushing the inclined surface. The female and male buckles have locked and unlocked states: In the locked state, the locking component partially penetrates into the mounting cavity. The female buckle is magnetically attracted by the first magnet inside and the second magnet inside the locking post, which guides the locking post to open the locking component and fully engage it into the mounting cavity. The locking component springs back and engages into the locking groove to form a lock, restricting the movement of the female buckle and the female buckle. In the unlocked state, pressing the buttons on both sides causes the second inclined surface on the button to move along the first inclined surface. The button moves the locking component away from the engagement groove through the inclined surface. At the same time, the second inclined surface pushes the first inclined surface, causing the locking plate to move upward, increasing the distance between the first magnet and the second magnet to weaken the attraction force. The female buckle can be pulled upward to separate from the female buckle.

[0006] Furthermore, the locking assembly includes a retractable spring, a push block, and a locking tongue connected to one side of the push block. One end of the spring is connected to the end of the button, and the other end is connected to the push block. A first inclined surface is provided on one side of the push block. When the buttons on both sides are pressed, the push block is displaced through the two inclined surfaces. The displacement of the push block elongates the spring, and the push block drives the locking tongue to displace from the engagement groove, releasing the locking of the male and female latches. The push block and the locking tongue are reset by the rebound force of the spring. At the same time as the push block resets, the button is pushed to reset synchronously.

[0007] Furthermore, the left and right sides of the housing are provided with button slots, and the front and rear sides of the housing are provided with assembly slots. The button, spring and push block are assembled in the button slot, and the locking tongue is assembled in the assembly slot. The push block and the locking tongue move back and forth in the button slot and the assembly slot, respectively. A slide rail is provided between the button slot and the assembly slot, and a slide groove is provided between the push block and the locking tongue. When the locking component moves, the slide rail slides back and forth in the slide groove.

[0008] Furthermore, the front and rear ends of the housing are provided with protruding blocks, which are located above the mounting cavity. The latch is provided with a concave groove, which is adapted to the block. The latch partially penetrates into the mounting cavity and the block abuts against the groove.

[0009] Furthermore, the push block is provided with a first inclined surface, and the inner side of the button is provided with a second inclined surface adapted to the first inclined surface. When the button is pressed, the second inclined surface moves along the first inclined surface on the push block, and the push block is moved by the inclined surface.

[0010] Furthermore, a positioning block is set inside the button slot, and a positioning groove adapted to the positioning block is provided at the bottom of the button. When the button is moved, the positioning block moves within the positioning groove.

[0011] Furthermore, the housing has several protruding pillars, and the locking plate has through holes corresponding to the pillars. When the locking plate is assembled, the pillars pass through the through holes, and the locking plate is restricted to only moving up and down by the way the pillars pass through the through holes.

[0012] Furthermore, the locking plate has extension posts extending from both the front and rear ends, with a first inclined surface at the bottom of the extension posts and a second inclined surface on the locking assembly. The first inclined surface is attached to the second inclined surface. When the locking assembly moves back and forth, the second inclined surface pushes the first inclined surface to move, thereby realizing the up and down movement of the locking plate.

[0013] Furthermore, the locking plate is provided with an elastic strip with an arc-shaped profile. The elastic strip contacts the upper cover. When the locking plate moves upward, the elastic strip deforms, and the rebound force of the elastic strip causes the locking plate to move downward and reset.

[0014] Furthermore, one end of the female buckle is provided with a webbing mounting part.

[0015] A magnetic snap fastener and its sub-snap fastener structure include a female snap fastener and a female snap fastener that can be snapped together. The female snap fastener includes a housing, an upper cover covering the housing, buttons on both sides that can move left and right, a locking component located inside the housing that can move back and forth, and a locking plate installed above the locking component that can move up and down. The locking plate is linked to the locking component. A first magnet is provided inside the locking plate. The bottom of the female snap fastener is provided with an installation cavity. The sub-buckle includes a first sub-buckle and a second sub-buckle that can be interlocked on the left and right sides. The first sub-buckle has an extended connecting piece on the side for interlocking, and the second sub-buckle has a connecting groove at the bottom of the side for interlocking that adapts to the connecting piece. A lower magnet is provided at the bottom of the connecting piece, and an upper magnet is provided at the top of the second sub-buckle. When interlocking, the magnetic attraction between the lower magnet and the upper magnet guides the connecting piece into the connecting groove, thereby achieving the interlocking of the first sub-buckle and the second sub-buckle. The first buckle has a protruding locking post that fits into the mounting cavity. The locking post has a concave locking groove on its side wall and a second magnet inside the locking post. The female and female buckles are engaged by the magnetic attraction between the first and second magnets, which guides the locking post to open the locking assembly and fully engage it into the mounting cavity. The locking assembly springs back and engages into the engagement groove to form a lock. By pressing the buttons on both sides, the locking assembly is moved to disengage from the engagement groove. At the same time, the movement of the locking assembly causes the locking plate to move upward for unlocking. The sub-fastener includes an assembled state and a disassembled state: In the assembled state, the first and second sub-buckles are close to each other, the lower magnet at the bottom of the connecting piece and the upper magnet at the top of the second sub-buckle attract each other magnetically to guide the connecting piece into the connecting groove, and the limiting part closes and laterally limits the first and second sub-buckles, forming the upper and lower fastening of the first and second sub-buckles. In the disassembled state, pry the first and second sub-clasps up and down to release the lateral limit of the limiting part, the locking post will disengage from the inner groove, and the connecting piece will also disengage from the connecting groove, allowing the first or second sub-clasp to be removed.

[0016] Furthermore, the limiting part includes several protruding locking blocks on the connecting piece and a locking groove in the connecting groove that adapts to the locking blocks. When the first sub-buckle and the second sub-buckle are fastened together, the locking blocks are embedded in the locking groove.

[0017] Furthermore, both the first and second sub-buckles are provided with mounting blocks, and mounting portions are provided between the first and second sub-buckles and the mounting blocks. The mounting blocks are detachably mounted on the lower ends of the first and second sub-buckles through the mounting portions. Webbing mounting portions are provided on the outer edges of the first and second sub-buckles and the mounting blocks, and webbing mounting portions are also provided on the outer ends of the female buckle. Several webbing mounting portions are distributed in a ring.

[0018] Furthermore, the mounting part includes a limiting boss on the mounting block and boss grooves on the first and second sub-buckles that are adapted to the limiting boss. The mounting block is fixed by sliding into the boss groove from one side through the limiting boss. The end of the limiting boss is provided with an arc-shaped block, and the boss groove is provided with an arc-shaped groove. When the limiting boss is completely slid into the boss groove, the arc-shaped block is stuck into the arc-shaped groove.

[0019] Compared with the prior art, the beneficial effects that this invention can achieve are: The female and female buckles of this invention include a locked state and an unlocked state. In the locked state, the locking component partially penetrates the mounting cavity. When the female and female buckles approach each other, the female buckle is magnetically attracted by the first magnet inside and the second magnet inside the locking post, guiding the locking post into the mounting cavity. During the process of the locking post engaging the mounting cavity, it first pushes open the locking component until it is fully engaged in the mounting cavity. Then, the locking component engages into the locking groove due to the elasticity of its own material, forming a lock. The first magnets attract each other, restricting the movement of the female and female buckles through engagement and magnetic attraction. In the unlocked state, manually pressing the buttons on the left and right sides causes the second inclined surface on the button to move along the first inclined surface. The button, through the structure of the inclined surface, drives the locking component to move away from the locking groove, releasing the locked state. At the same time as the locking component moves, the second inclined surface pushes the first inclined surface. The locking component also drives the locking plate to move upward through the structure of the inclined surface. The distance between the first and second magnets installed on the locking plate increases, and the attraction force between the two magnets weakens, allowing the female buckle to be easily pulled upward to separate from the female buckle.

[0020] The button in this design unlocks the device by pressing a beveled structure that moves the locking component. Simultaneously, the beveled structure moves the locking plate. This beveled structure links the button, locking component, and locking plate, resulting in a simple structure and stable movement of each component. By mounting the first magnet on the locking plate, pressing the button to unlock causes the locking component to move the locking plate upwards, increasing the distance between the two magnets and reducing their magnetic attraction. This makes removing the female buckle easier, requiring less force from the user. Magnetic attraction guides the female and male buckles to engage; simply bringing them close together eliminates the need for calibration, enhancing user convenience. Furthermore, the dual protection of magnetic attraction and the locking component ensures a strong and secure engagement between the female and male buckles, preventing them from easily detaching. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention.

[0022] Figure 2 This is a cross-sectional view of the present invention.

[0023] Figure 3 Explosion of Embodiment 1 of the present invention Figure 1 .

[0024] Figure 4 Explosion of Embodiment 1 of the present invention Figure 2 Figure 5 This is a diagram showing the female buckle of the present invention in an open state.

[0025] Figure 6 This is a perspective view of the locking component of the present invention.

[0026] Figure 7 This is an exploded view of Embodiment 2 of the present invention.

[0027] Figure 8 This is a perspective view of the buckle of the present invention.

[0028] Figure 9 This is a cross-sectional view of the buckle of the present invention.

[0029] Figure 10 The snap-on explosion of the present invention Figure 1 .

[0030] Figure 11 The snap-on explosion of the present invention Figure 2 .

[0031] Reference numerals: 1. Female buckle, 2. Female buckle, 3. Housing, 4. Top cover, 5. Button, 6. Locking assembly, 7. Mounting cavity, 8. Locking plate, 9. First magnet, 10. Second magnet, 11. Engaging post, 12. Engaging groove, 13. Spring piece, 14. Push block, 15. Locking tongue, 16. Button groove, 17. Assembly groove, 18. Slide rail, 19. Slide groove, 20. Stop block, 21. Groove body, 22. First inclined surface, 23. Second inclined surface, 24. Positioning block, 25. Positioning groove 26. Column, 27. Through hole, 28. Extension column, 29. First inclined surface, 30. Second inclined surface, 31. Elastic strip, 32. Webbing mounting part, 33. First buckle, 34. Second buckle, 35. Connecting piece, 36. Connecting groove, 37. Lower magnet, 38. Upper magnet, 39. Inner groove, 40. Locking block, 41. Locking groove, 42. Mounting block, 43. Mounting part, 44. Limiting boss, 45. Boss sliding groove, 46. Arc block, 47. Arc groove, 48. Limiting part. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0033] like Figure 1-6 As shown, a magnetic snap fastener includes a female snap 1 and a female snap 2 that can be fastened to each other. The female snap 1 includes a housing 3, an upper cover 4 covering the housing 3, buttons 5 located on both sides that can move left and right, two locking components 6 located inside the housing 3 that can move back and forth, and a locking plate 8 installed above the locking components 6 that can move up and down. The locking plate 8 is linked to the locking components 6. Each button 5 is individually connected to a locking component 6. The button 5 drives the moving component 6 to move for unlocking. The locking plate 8 is provided with a first magnet 9.

[0034] The female buckle 2 has a protruding locking post 11, and the side wall of the locking post 11 has a concave locking groove 12. The locking groove 12 is distributed in a ring on the side wall of the locking post 11. The bottom of the female buckle 1 has an installation cavity 7 adapted to the locking post 11. The locking post has a second magnet 10. The female buckle 2 and the female buckle 1 are fastened by the locking post 11 being fastened into the installation cavity 7.

[0035] The locking assembly 6 has a first inclined surface 22 on the side near the button 5, and a second inclined surface 23 on the inner side of the button 5. The first inclined surface 22 and the second inclined surface 23 are adapted to each other. When the button 5 is pressed, the second inclined surface 23 moves along the first inclined surface 22, and the inclined surface pushes the locking assembly 6 to move. The locking plate 8 has extension posts 28 extending from both the front and rear ends. The bottom of the extension post 28 has a first inclined surface 29, and the top of the locking assembly 6 has a second inclined surface 30. The first inclined surface 29 fits on the second inclined surface 30, and the inclined surface pushes the locking plate to move up and down.

[0036] The female buckle 2 and the female buckle 1 have locked and unlocked states: In the locked state, the locking component 6 is partially inserted into the mounting cavity 7. When the female buckle 1 and the female buckle 2 approach each other, the female buckle 1 is magnetically attracted by the first magnet 9 and the second magnet 10 inside the locking post 11, guiding the locking post 11 into the mounting cavity 7. During the process of the locking post 11 being inserted into the mounting cavity 7, it first pushes open the locking component 6 until it is completely inserted into the mounting cavity 7. Then, the locking component 6 is locked into the locking groove 12 by the elastic force of its own material. The first magnet 9 and the second magnet 10 attract each other, restricting the movement of the female buckle 1 and the female buckle 2. Through the buckling and magnetic attraction, the female buckle 2 and the female buckle 1 are doubly limited, increasing the buckling strength and preventing separation during use.

[0037] In the unlocked state, manually press the buttons 5 on both sides. The two buttons 5 move inward, and the second inclined surface 23 moves along the first inclined surface 22, pushing the locking component 6 to move away from the engaging groove 12, thus releasing the locked state. At the same time as the locking component 6 moves, the second inclined surface 30 moves along the first inclined surface 29, pushing the locking plate 8 to move upward. The distance between the first magnet 9 and the second magnet 10 installed on the locking plate 8 increases, and the attraction force of the two magnets weakens, making it easy to pull the female buckle 1 upward to separate it from the female buckle 2.

[0038] This design is easy to use. Pressing to unlock reduces the magnetic attraction force, allowing users to remove the female buckle without much force. Removing the female buckle 1 is easier and more convenient. The magnetic attraction guides the female buckle 1 and the female buckle 2 to engage. They only need to be brought close together to engage without calibration, ensuring user convenience. Furthermore, the magnetic attraction and locking component 6 provide double protection, ensuring a strong engagement between the female buckle 1 and the female buckle 2, making them less likely to fall off easily. Button 5 uses a beveled structure to push the locking component 6 to unlock. Simultaneously, the movement of the locking component 6 pushes the locking plate 8 to move. The beveled structure links button 5, locking component 6, and locking plate 8, resulting in a simple structure and stable movement of each component.

[0039] This design features two locking components 6 located at the upper and lower ends inside the housing 3. Each locking component 6 is connected to a button 5 on one side and moves in opposite directions. Each locking component 6 includes a retractable spring 13, a push block 14, and a latch 15 connected to one side of the push block 14. One end of the spring 13 is connected to the end of the button 5, and the other end is connected to the push block 14. A first inclined surface 22 is located on one side of the push block 14, and a second inclined surface 30 is located on the top of both sides of the latch 15. When the buttons 5 on both sides are pressed, the inclined surfaces push the push block 14 to move, one push block 14 moves upward and the other moves downward. The displacement of the push blocks 14 elongates the spring 13, and the two push blocks 14 cause the latch 15 on their respective sides to move away from the engaging groove 12 to release the lock between the male latch 2 and the female latch 1. After releasing, the push block 14 and the latch 15 reset due to the rebound force of the spring 13. Simultaneously, the push block 14 resets, pushing the button 5 to reset as well.

[0040] The housing 3 has button slots 16 on its left and right sides, and assembly slots 17 on its front and rear sides inside the housing. Button 5, spring 13, and push block 14 are assembled in the button slots 16 to assemble and restrict the movement of button 5 and push block 14. Locking tongue 15 is assembled in the assembly slots 17 to assemble and restrict its movement. Push block 14 and locking tongue 15 move back and forth in the button slots 16 and assembly slots 17 respectively, while button 5 moves left and right in the button slots 16. A slide rail 18 is provided between the button slots 16 and assembly slots 17, and a sliding groove 19 is provided between push block 14 and locking tongue 15. When the locking component 6 moves, the slide rail 18 slides back and forth in the sliding groove 19, further restricting the movement of the locking component 6, allowing only back and forth movement, and preventing the locking component 6 from shifting or misaligning.

[0041] The front and rear ends of the housing 3 are provided with protruding blocks 20, which are located above the mounting cavity 7. The center of the latch 15 is provided with a concave groove 21, which is adapted to the block 20. The latch 15 partially penetrates into the mounting cavity 7 and the block 20 abuts against the groove 21, thus limiting the latch 15 from going too deep into the mounting cavity 7.

[0042] The button slot 16 is equipped with a positioning block 24, and the bottom of the button 5 is provided with a positioning slot 25 adapted to the positioning block 24. When the button 5 is pressed, the positioning block 24 moves in the positioning slot 25, which restricts the button 5 to only move horizontally left and right, and prevents the button 5 from shifting.

[0043] The housing 3 has several protruding columns 26 inside, preferably four columns 26, and the positions of the columns 26 correspond to the four corners of the locking plate 8. The locking plate 8 has through holes 27 corresponding to the columns 26. When the locking plate 8 is assembled, the columns 26 pass through the through holes 27, and the locking plate 8 is restricted to only moving up and down by the way the columns 26 pass through the through holes 27.

[0044] The locking plate 8 is provided with an arc-shaped elastic strip 31, which contacts the upper cover 4. When the two latches 15 move outward, the second inclined surface 30 displaces and gradually pushes the locking plate 8 upward, squeezing the elastic strip 31 to deform it. The first magnet 9 on the locking plate 8 moves away from the second magnet 10, making it easier to remove the female buckle 1. When the two latches 15 move inward and close together, the second inclined surface 30 on the latches 15 displaces. The rebound force generated by the elastic strip 31 itself always exerts a downward force on the locking plate 8. The first inclined surface 29 always adheres to the displacement of the second inclined surface, and the locking plate 8 gradually moves downward to reset.

[0045] The spring sheet 13 and the elastic strip 31 are made of plastic and have a certain degree of resilience.

[0046] One end of the female buckle 1 is provided with a webbing mounting part 32 for threading the webbing. Example

[0047] like Figure 5-11 As shown, a magnetic snap fastener and its sub-snap fastener structure includes a female snap fastener 1 and a female snap fastener 2 that can be snapped together. The female snap fastener 1 includes a housing 3, an upper cover 4 covering the housing 3, buttons 5 located on both sides that can move left and right, a locking component 6 located inside the housing 3 that can move back and forth, and a locking plate 8 installed above the locking component 6 that can move up and down. The locking plate 8 is linked to the locking component 6. A first magnet 9 is provided inside the locking plate 8. The bottom of the female snap fastener 1 is provided with an installation cavity 7.

[0048] The female buckle structure in Embodiment 2 is the same as that in Embodiment 1.

[0049] The sub-buckle 2 includes a first sub-buckle 33 and a second sub-buckle 34 that can be interlocked on the left and right sides. The first sub-buckle 33 has an extended connecting piece 35 on the side used for interlocking. The bottom of the second sub-buckle 34 on the side used for interlocking has a connecting groove 36 adapted to the connecting piece 35. A lower magnet 37 is provided at the bottom of the connecting piece 35, and an upper magnet 38 is provided at the upper end of the second sub-buckle 34. A limiting part 48 is provided between the connecting piece 35 and the connecting groove 36. The first sub-buckle 33 has a protruding locking post 11, which is adapted to the mounting cavity 7. The side wall of the locking post 11 has a concave locking groove 12, which is distributed in a ring on the side wall of the locking post 11. The locking post 11 is partially located on the first sub-buckle 33 and partially on the connecting piece 35. The second sub-buckle 34 has an inner groove 39 at one end for fastening. The inner groove 39 fits the outer contour of the locking post 11. When the first sub-buckle 33 and the second sub-buckle 34 are fastened together, the connecting piece 35 engages with the connecting groove 36, and simultaneously the locking post 11 is embedded in the inner groove 39. A second magnet 10 is provided inside the locking post 11. The second magnet 10 and the first magnet 9 magnetically attract and guide the locking post 11 into the mounting cavity 7.

[0050] The sub-buckle 2 includes an assembled state and a disassembled state: In the assembled state, the first sub-buckle 33 and the second sub-buckle 34 are close to each other, and the lower magnet 37 at the bottom of the connecting piece 34 and the upper magnet 38 at the top of the second sub-buckle 34 magnetically attract each other to guide the connecting piece 35 into the connecting groove 36. At the same time, the locking post 11 is embedded in the inner groove 39, and the limiting part 48 forms a snap and laterally limits the first sub-buckle 33 and the second sub-buckle 34. The first sub-buckle 33 and the second sub-buckle 34 cannot be separated by pulling left and right. The first sub-buckle 33 and the second sub-buckle 34 form an upper and lower snap. In the disassembled state, the first sub-buckle 33 and the second sub-buckle 34 are pried up and down to release the lateral limitation of the limiting part 48. The locking post 11 is disengaged from the inner groove 39, and the connecting piece 35 is also disengaged from the connecting groove 36. The first sub-buckle 33 or the second sub-buckle 34 can be removed.

[0051] The buckle 2 of this invention does not require deliberate calibration. The first buckle 33 and the second buckle 34 can be magnetically attracted and fastened when brought close to each other. The first buckle 33 and the second buckle 34 can be disassembled by moving them up and down. The operation is simple and convenient, and it is easy for users to use.

[0052] The limiting part 48 includes several protruding locking blocks 40 on the connecting piece 35 and a locking groove 41 in the connecting groove 36 that adapts to the locking blocks 40. When the first sub-buckle 33 and the second sub-buckle 44 are fastened together, the locking blocks 40 are embedded in the locking groove 41 for lateral limiting, preventing separation when the first sub-buckle 33 or the second sub-buckle 44 is pulled laterally, so that the first sub-buckle 33 and the second sub-buckle 44 can only be separated vertically.

[0053] Each of the first sub-buckle 33 and the second sub-buckle 34 is provided with a mounting block 42. A mounting portion 43 is provided between the first sub-buckle 33, the second sub-buckle 34 and the mounting block 42. The mounting block 42 is detachably mounted to the lower end of the first sub-buckle 33 and the second sub-buckle 34 through the mounting portion 43. A webbing mounting portion 32 is provided on the outer edge of the first sub-buckle 33, the second sub-buckle 34 and the mounting block 42. A webbing mounting portion 32 is also provided on the outer end of the female buckle 1. A total of five webbing mounting portions 32 are arranged in a ring. The webbing mounting portions 32 are used to install webbing. The five webbings are respectively tied to the webbing mounting portions 32 of the first sub-buckle 33, the second sub-buckle 34, the two mounting blocks 42 and the female buckle. The detachable design of the first sub-buckle 33, the second sub-buckle 34 and the mounting block 42 allows for the removal of any one of the webbings.

[0054] The mounting part 43 includes a limiting boss 44 on the mounting block 42 and boss grooves 45 on the first and second sub-buckles 33 and 34 that are adapted to the limiting boss 44. The mounting block 42 is fixed by sliding into the boss groove 45 from one side through the limiting boss 44. The limiting boss 44 and the boss groove 45 are hook-shaped and mutually adapted. After assembly, they can longitudinally limit the mounting block 42 and prevent it from falling off due to being pried up and down. When the first and second sub-buckles 33 and 34 are assembled, the two mounting blocks 42 abut against each other, restricting the mounting block 42 from sliding out.

[0055] The limiting boss 44 has an arc-shaped block 46 at its end, and the boss slide groove 45 has an arc-shaped groove 47 that fits the arc-shaped block 46. When the limiting boss 44 is fully slid into the boss slide groove 45, the arc-shaped block 46 is engaged in the arc-shaped groove 47, which serves as a lateral limiting function to prevent the limiting boss 44 from sliding out of the boss slide groove 45. A lateral force needs to be manually applied to the mounting block 42 to disengage the arc-shaped block 46 from the arc-shaped groove 47. Laterally sliding the limiting boss 44 is then used to remove the mounting block 42. The outer contour of the arc-shaped block 46 is arc-shaped, which helps the arc-shaped block 46 to disengage more easily from the arc-shaped groove 47.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A magnetic snap fastener, comprising a female snap (1) and a female snap (2) that can be interlocked, characterized in that, The female buckle (1) includes a housing (3), an upper cover covering the housing (3), buttons (5) that can move left and right on both sides, a locking component (6) connected to one end of the button (5) and movable back and forth, and a locking plate (8) installed above the locking component (6) that can move up and down. The locking plate (8) is linked to the locking component (6), and the locking plate (8) is provided with a first magnet (9). The female buckle (2) is provided with a protruding locking post (1), and the side wall of the locking post (1) is provided with a concave locking groove (12). The bottom of the female buckle (1) is provided with an installation cavity (7) adapted to the locking post (11), and the locking post (11) is provided with a second magnet (10). The locking component (6) has a first inclined surface (22) on the side near the button (5), and a second inclined surface (23) on the inner side of the button (5). The first inclined surface (22) and the second inclined surface (23) are adapted to each other. When the button (5) is pressed, the second inclined surface (23) moves along the first inclined surface (22) and pushes the locking component (6) to move through the inclined surface. The locking plate (8) has extension posts (28) extending from both the front and rear ends. The bottom of the extension post (28) has a first inclined surface (29), and the top of the locking assembly (6) has a second inclined surface (30). The first inclined surface (29) fits onto the second inclined surface (30), and the locking plate (8) is moved by the inclined surface. The female buckle (2) and the female buckle (1) include a locked state and an unlocked state: In the locked state, the locking component (6) is partially inserted into the mounting cavity (7). The female buckle (1) is magnetically attracted by the first magnet (9) inside and the second magnet (10) inside the locking post (11), which guides the locking post (11) to push open the locking component (6) and fully engage it into the mounting cavity (7). The locking component (6) springs back and engages into the locking groove (12) to form a lock, restricting the movement of the female buckle (1) and the female buckle (2). In the unlocked state, press the buttons (5) on both sides. The second inclined surface (23) on the button (5) moves along the first inclined surface (22). The button (5) drives the locking component (6) to move away from the locking groove (12) through the inclined surface. At the same time as the locking component (6) moves, the second inclined surface (30) pushes the first inclined surface (29) to move, which drives the locking plate (8) to move upward, increasing the distance between the first magnet (9) and the second magnet (10) to weaken the adsorption force. The female buckle (1) can be pulled upward to separate from the female buckle (2).

2. The magnetic clasp according to claim 1, characterized in that, The locking assembly (6) includes a retractable spring (13), a push block (14), and a locking tongue 15 connected to one side of the push block (14). One end of the spring (13) is connected to the end of the button (5), and the other end is connected to the push block (14). The first inclined surface (22) is provided on one side of the push block (14). When the buttons (5) on both sides are pressed, the push block (14) is pushed to move through the two inclined surfaces. The displacement of the push block (14) stretches the spring (13). The push block (14) drives the locking tongue (15) to move away from the locking groove (12) and release the locking of the female buckle (2) and the female buckle (1). The push block (14) and the locking tongue (15) are reset by the rebound force of the spring (13). When the push block (14) is reset, it pushes the button (5) to reset simultaneously.

3. A magnetic clasp according to claim 2, characterized in that, The housing (3) has button slots (16) on the left and right sides, and assembly slots (17) on the front and back sides inside the housing (3). Buttons (5), springs (13) and push blocks (14) are assembled in button slots (16), and latches (15) are assembled in assembly slots (17). Push blocks (14) and latches (15) move back and forth in button slots (16) and assembly slots (17) respectively. A slide rail (18) is provided between button slots (16) and assembly slots (17), and a slide groove (19) is provided between push blocks (14) and latches (15). When the locking assembly (6) moves, the slide rail (18) slides back and forth in the slide groove (19).

4. A magnetic clasp according to claim 2, characterized in that, The front and rear ends of the housing (3) are provided with protruding blocks (20), the blocks (20) are located above the mounting cavity (7), the latch (15) is provided with a recessed groove (12), the groove (21) is adapted to the block (20), the latch (15) partially penetrates into the mounting cavity (7) and the block (20) abuts against the groove (21).

5. A magnetic clasp according to claim 3, characterized in that, The button slot (16) is equipped with a positioning block (24), and the bottom of the button (5) is provided with a positioning slot (25) adapted to the positioning block (24). When the button (5) is active, the positioning block (24) moves within the positioning slot (25).

6. A magnetic clasp according to claim 1, characterized in that, The housing (3) has several protruding columns (26) inside, and the locking plate (8) has through holes (27) corresponding to the columns (26). When the locking plate (8) is assembled, the columns (26) pass through the through holes (27), and the locking plate (8) is restricted to only moving up and down by the way the columns (26) pass through the through holes (27).

7. A magnetic clasp according to claim 1, characterized in that, The locking plate (8) is provided with an elastic strip (31) with an arc-shaped profile. The elastic strip (31) contacts the upper cover (4). After the locking plate (8) moves upward, the elastic strip deforms and the locking plate (8) moves downward to reset through the rebound force of the elastic strip (31).

8. A magnetic clasp according to claim 1, characterized in that, The female buckle (1) has a webbing mounting part (32) at one end.

9. A magnetic snap fastener and its sub-snap fastener structure, comprising a female snap fastener (1) and a female snap fastener (2) that can be interlocked, characterized in that, The female buckle (1) includes a housing (3), an upper cover (4) covering the housing (3), buttons (5) located on both sides that can move left and right, a locking component (6) located inside the housing (3) and movable back and forth, and a locking plate (8) installed above the locking component (6) that can move up and down. The locking plate (8) is linked to the locking component (6). The locking plate (8) is provided with a first magnet (9). The bottom of the female buckle (1) is provided with an installation cavity (7). The sub-buckle (2) includes a first sub-buckle (33) and a second sub-buckle (34) that can be fastened together on the left and right sides. The first sub-buckle (33) has an extended connecting piece (35) on the side for fastening. The second sub-buckle (34) has a connecting groove (36) adapted to the connecting piece (35) at the bottom of the side for fastening. A lower magnet (37) is provided at the bottom of the connecting piece (36). An upper magnet (38) is provided at the upper end of the second sub-buckle (34). A limiting part (48) is provided between the connecting piece (35) and the connecting groove (36). The first buckle (33) is provided with a protruding locking post (11), the locking post (11) is adapted to the mounting cavity (7), the side wall of the locking post (11) is provided with a concave locking groove (12), and the locking post (11) is provided with a second magnet (10). The female buckle (1) and the female buckle (2) are engaged by the magnetic attraction between the first magnet (9) and the second magnet (10), which guides the locking post (11) to open the locking assembly (6) and fully engage it into the mounting cavity (7). The locking assembly (6) springs back and engages into the engagement groove (12) to form a lock. By pressing the buttons (5) on both sides, the locking assembly (6) is moved to disengage from the engagement groove (12). At the same time, the locking assembly (6) moves and drives the locking plate (8) to move upward for unlocking. The sub-buckle (2) includes an assembled state and a disassembled state: In the assembled state, the first sub-buckle (33) and the second sub-buckle (34) are close to each other, the lower magnet (37) at the bottom of the connecting piece (35) and the upper magnet (38) at the top of the second sub-buckle (34) attract each other magnetically, and the connecting piece (35) is snapped into the connecting groove (36). The limiting part (48) snaps together and laterally limits the first sub-buckle (33) and the second sub-buckle (34), forming the upper and lower snapping of the first sub-buckle (33) and the second sub-buckle (34); In the disassembled state, pry the first sub-buckle (33) and the second sub-buckle (34) up and down to release the lateral limit of the limiting part (48), the locking post (11) disengages from the inner groove (39), and the connecting piece (35) also disengages from the connecting groove (36), so that the first sub-buckle (33) or the second sub-buckle (34) can be removed.

10. The limiting structure of a magnetic clasp according to claim 9, characterized in that, The limiting part (48) includes several protruding locking blocks (40) on the connecting piece (35) and a locking groove (41) in the connecting groove (36) that adapts to the locking blocks (40). When the first sub-buckle (33) and the second sub-buckle (34) are fastened, the locking block (40) is embedded in the locking groove (41).

11. The limiting structure of a magnetic clasp according to claim 9, characterized in that, The first sub-buckle (33) and the second sub-buckle (34) are each provided with a mounting block (42). A mounting part (43) is provided between the first sub-buckle (33), the second sub-buckle (34) and the mounting block (42). The mounting block (42) is detachably mounted on the lower end of the first sub-buckle (33) and the second sub-buckle (34) through the mounting part (43). A webbing mounting part (32) is provided on the outer edge of the first sub-buckle (33), the second sub-buckle (34) and the mounting block (42). A webbing mounting part (32) is also provided on the outer end of the female buckle (1). Several webbing mounting parts (32) are arranged in a ring.

12. The limiting structure of a magnetic clasp according to claim 11, characterized in that, The mounting part (43) includes a limiting boss (44) on the mounting block (42) and boss grooves (45) on the first sub-buckle (33) and the second sub-buckle (34) that are adapted to the limiting boss (44). The mounting block (42) is fixed by sliding into the boss groove (45) from one side through the limiting boss (44). The end of the limiting boss (44) is provided with an arc-shaped block (46), and the boss groove (45) is provided with an arc-shaped groove (47). When the limiting boss (44) is completely slid into the boss groove (45), the arc-shaped block (46) is inserted into the arc-shaped groove (47).

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