Magnetic fastener

Abstract

The utility model relates to the technical field of connecting buckles, in particular to a magnetic attraction fastener, which comprises a primary buckle and a secondary buckle which can be mutually attracted and buckled, the primary buckle comprises a shell, an upper cover matched with the shell, a magnetic attraction piece and a key assembly which are arranged in the shell, and a mounting cavity with one end positioned in the shell and the other end protruding out of the bottom of the shell, a movable locking assembly is arranged in the mounting cavity, the locking assembly partially penetrates out of the mounting cavity and is used for locking the sub-buckle, the locking assembly is in linkage with the key assembly, the key assembly pushes the locking assembly to movably release locking with the sub-buckle, and the locking assembly is movably reset through resilience force of the locking assembly; and the locking assembly is always attached to the inner wall of the mounting cavity to move, so that the moving stability is greatly improved, shaking is not likely to happen, and the excellent quality of the product is guaranteed.

Description

Technical Field

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

[0002] Backpacks, baby carriers, child safety seats, and baby hip seats often require fasteners to connect or maintain a certain position, and these fasteners typically need to be quick and easy to release. For example, baby hip seats or baby carriers frequently need to be connected and released during use, which can be achieved through fasteners. Common fasteners usually include male and female buckles, which are connected by magnetic attraction.

[0003] Existing magnetic clasps have magnets on both the male and female clasps, attracting each other through their mutual magnetic force. However, the attraction between the two magnets may be insufficient, causing them to detach during use. Therefore, a locking structure is needed to further increase the connection strength. This locking structure is typically unlocked using a button. The stability of existing locking structures is relatively poor; the locking structure or button may wobble or shift during use, resulting in generally lower product quality. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a magnetic fastener. To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0005] A magnetic fastener includes a female buckle and a female buckle that can be attracted and fastened to each other. The female buckle includes a housing, a top cover that mates with the housing, a magnetic fastener and a button assembly installed inside the housing, and a mounting cavity with one end located inside the housing and the other end protruding from the bottom of the housing. A movable locking component is provided inside the mounting cavity, and the locking component partially protrudes from the mounting cavity to lock the female buckle. The locking component is linked to the button assembly. The locking component is released from locking with the female buckle by pushing the button assembly, and the locking component is reset by its own rebound force.

[0006] Furthermore, the locking assembly includes a first locking member, a second locking member located on both sides, and a center plate at the top. The top of the first locking member and the second locking member are provided with upwardly extending spring pieces that are respectively connected to the two ends of the center plate. The first locking member and the second locking member can move laterally through the spring pieces. A movable cavity is formed between the first locking member and the second locking member, and the first locking member and the second locking member move against the inner wall of the mounting cavity.

[0007] Furthermore, the mounting cavity has through holes on both sides, and the first locking member and the second locking member have locking tongues that extend out of the through holes on their respective sides. The locking tongues engage with the sub-buckles to form a lock, and the locking is achieved by pressing the first locking member and the second locking member on both sides to move the locking tongues inward into the mounting cavity.

[0008] Furthermore, the button assembly includes a first button and a second button located on both sides of the housing, and an elastic element supported between the first button and the second button. Button cavities are formed on both sides of the housing, and the first button and the second button are movably installed in the button cavities, with their outer ends exposed outside the button cavities.

[0009] Furthermore, the inner sides of the first button and the second button are provided with sliders extending into the housing, and the housing is provided with a groove adapted to the sliders. When the first button and the second button are moved, the sliders slide in the grooves; the first button and the second button are provided with protruding blocks on both sides.

[0010] Furthermore, the housing is provided with an assembly groove located on the outer edge of the mounting cavity, and the magnetic suction component is installed in the assembly groove.

[0011] Furthermore, the lower end of the male buckle is provided with an annular mounting groove, and an adsorption component is provided in the mounting groove. When the male buckle and the female buckle are fastened together, the magnetic component and the adsorption component are attracted to each other.

[0012] Furthermore, the latch is provided with a mounting hole that adapts to the outer contour of the mounting cavity, and a raised limiting step is provided on the inner wall of the mounting hole. The locking tongue and the limiting step abut against each other to achieve locking. The upper end of the locking tongue is provided with a guide surface, and the upper end of the limiting step is provided with a guide surface.

[0013] Furthermore, the bottom of the housing is provided with a buckle mounting groove that adapts to the outer contour of the buckle. When the buckle and the female buckle are engaged, the buckle is installed in the buckle mounting groove. The outer wall of the buckle and the inner wall of the buckle mounting groove are mutually fitted inclined surfaces.

[0014] Furthermore, one end of the housing is provided with a mounting part for inserting the webbing, and the mounting part is provided with a cover plate that can be flipped open and closed.

[0015] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0016] The female buckle of this utility model includes a housing, a top cover that mates with the housing, and a magnetic suction component and a button assembly installed inside the housing. It also includes a mounting cavity with one end located inside the housing and the other end protruding from the bottom of the housing. A movable locking component is provided within the mounting cavity. The locking component is linked to the button assembly; pressing the button moves the locking component to release the locking relationship with the female buckle, and the component resets itself through its own spring force. The locking component of this design is V-shaped, unlocking or locking through its own physical structure. Compared to traditional designs that use spring force, this design requires less force to unlock. When assembling the female and male buckles, there is no need to press the buttons on both sides; the magnetic attraction alone is enough to move the locking component to unlock, and the locking component resets itself through its own spring force after the buckle is engaged. This design is convenient and user-friendly.

[0017] The mounting cavity is wrapped around the outer contour of the locking component, and the locking component always moves in close contact with the inner contour of the mounting cavity, allowing it to move laterally only along the set pressing trajectory. When it wants to move longitudinally, it is constrained by the mounting cavity, which greatly increases the stability of the movement, makes it less prone to shaking, and ensures the excellent quality of the product.

[0018] The installation of the male and female buckles is also relatively stable. The assembly of the mounting cavity and the mounting hole is the first lateral limit, and the assembly of the outer contour of the male buckle and the male buckle mounting groove is the second lateral limit. In addition, the outer wall of the male buckle and the inner wall of the male buckle mounting groove are mutually fitting inclined surfaces, with a larger contact area, which greatly increases the stability of the male and female buckles after they are fastened together and makes them less prone to shaking. Attached Figure Description

[0019] Figure 1 The three-dimensional representation of this utility model Figure 1 .

[0020] Figure 2 This is a cross-sectional view of the present invention.

[0021] Figure 3 The three-dimensional representation of this utility model Figure 2 .

[0022] Figure 4 This is a perspective view of the locking component of this utility model.

[0023] Figure 5 The three-dimensional representation of this utility model Figure 3 .

[0024] Figure 6 This is an exploded view of the present invention.

[0025] Reference numerals: 1. Female buckle, 2. Female buckle, 3. Housing, 4. Top cover, 5. Button assembly, 6. Magnetic element, 7. Mounting cavity, 8. Locking assembly, 9. First button, 10. Second button, 11. Elastic element, 12. Button cavity, 13. Slider, 14. Slide groove, 15. Stop block, 16. First locking element, 17. Second locking element, 18. Center plate, 19. Spring piece, 20. Cavity, 21. Through hole, 22. Locking tongue, 23. Guide part, 24. Assembly groove, 25. Mounting groove, 26. Adsorption element, 27. Mounting hole, 28. Limiting step, 29. Base plate, 30. Female buckle mounting groove, 31. Mounting part, 32. Cover plate.

[0026] 16. Guide groove, 17. Guide block, 18. Assembly groove, 19. First opening, 20. Second opening, 21. First locking element, 22. Second locking element, 23. Lock tongue, 24. Through hole, 25. Mounting groove, 26. Adsorption element, 27. Mounting hole, 28. Limiting step, 29. Guide surface, 30. Guide surface, 31. Sub-buckle mounting groove, 32. Base plate. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1-6 As shown, a magnetic fastener includes a female buckle 1 and a female buckle 2 that can be magnetically attached to each other. The female buckle 2 is used to install on backpacks, baby carriers, and child seats. The female buckle 2 is fixed by magnetic attraction. The female buckle 1 includes a housing 3, a top cover 4 that mates with the housing 3, a magnetic component 6 and a button assembly 5 installed inside the housing 3, and a mounting cavity 7 with one end located inside the housing 3 and the other end protruding from the bottom of the housing 3. The mounting cavity 7 is provided with a movable locking component 8, which partially protrudes from the mounting cavity 7 to lock the female buckle 2. The locking component 8 is V-shaped and is linked to the button assembly 5. The button assembly 5 presses the locking component 8 from both sides to release the locking relationship with the female buckle 2. The mounting cavity 7 is wrapped around the outer contour of the locking component 8. The locking component 8 always fits the inner contour of the mounting cavity 7, allowing it to move laterally only along the set pressing trajectory. When it wants to move longitudinally, it is constrained by the mounting cavity 7, which greatly increases the stability of the locking component 8 and makes it less prone to shaking, thus ensuring the excellent quality of the product.

[0029] The locking assembly 8 includes a first locking member 16 and a second locking member 17 located on both sides, and a center plate 18 at the top. The center of the top of the first locking member 16 and the second locking member 17 has an upwardly extending spring piece 19 connected to both ends of the center plate 18. The center plate 18 remains stationary, and the first locking member 16 and the second locking member 17 can move laterally via the spring piece 19 to release their lock from the latch 2. The width and thickness of the spring piece 19 are smaller than those of the first locking member 16 and the second locking member 17, so only a slight external force is needed for the first locking member 16 and the second locking member 17 to move laterally.

[0030] The first locking member 16, the second locking member 17, the center plate 18, and the spring piece 19 are integrally formed, avoiding unnecessary assembly and providing greater connection strength.

[0031] A movable cavity 20 is formed between the first locking member 16 and the second locking member 17. When the button assembly 5 is pressed from both sides, the first locking member 16 and the second locking member 17 are pushed to move in the cavity 20 and gradually move closer together. After releasing, the first locking member 16 and the second locking member 17 are reset by the rebound force of the spring piece 19 and re-fit the two ends of the inner wall of the installation cavity 7.

[0032] The mounting cavity 7 has through holes 21 on both sides. The first locking member 16 and the second locking member 17 have locking tongues 22 that pass through the through holes 21 on their respective sides. The locking tongues 22 engage with the sub-buckles 2 to form a lock. The locking is achieved by pressing the first locking member 16 and the second locking member 17 on both sides to move the locking tongues inward and into the mounting cavity 7.

[0033] In normal operation, the locking assembly 8 is locked, with the first locking member 16 and the second locking member 17 respectively attached to both ends of the inner wall of the mounting cavity 7, and the locking tongue 22 protruding through the through hole. When the female buckle 1 and the female buckle need to be engaged, the female buckle 1 is placed above the female buckle 2, and the mounting cavity 7 is to be inserted into the female buckle 2. Under magnetic attraction, the female buckle 2 will push open the locking tongue 22 protruding from both sides of the mounting cavity 7. The first locking member 16 and the second locking member 17 move synchronously with the locking tongue 22. When the female buckle 2 and the female buckle 1 are engaged and attracted, the locking assembly 8 uses its own elastic force to push the locking tongue 22 out of the through hole 21 and engage the female buckle 2, thus forming a lock. The advantage of the locking assembly in this solution is that it unlocks by its own elastic force. When the female buckle 2 and the female buckle 1 are engaged, there is no need to press the button assembly 5 to push the locking tongue 22 into the mounting cavity 7. The magnetic force alone is enough to push the locking tongue 22 into the mounting cavity 7, making the operation convenient for the user.

[0034] The outer side of the latch 22 is provided with an inclined guide 23. The guide 23 is an inclined slope. During the engagement of the male buckle 2 and the female buckle 1, the guide 23 can provide assistance, so that the male buckle 2 can more easily push open the latch 22 along the guide 23 to achieve assembly with the female buckle 1, which facilitates the user's assembly.

[0035] The button assembly 5 includes a first button 9 and a second button 10 located on both sides of the housing 3, and an elastic member 11 supported between the first button 9 and the second button 10. The elastic member 11 is integrally formed with the first button 9 and the second button 10. After the first button 9 and the second button 10 are pressed, they are reset by the rebound force of the elastic member 11.

[0036] The housing 3 has button cavities 12 on both sides. The first button 9 and the second button 10 are installed in the button cavity 12, and their outer ends are exposed outside the button cavity 12 for the user to press. When in motion, the first button 9 and the second button 10 can only move inside the button cavity 12. When pressed to a certain extent, they touch the end of the button cavity 12, which limits the maximum pressing distance of the first button 9 and the second button 10 and prevents damage caused by pressing too deeply.

[0037] The inner sides of the first button 9 and the second button 10 are provided with sliders 13 extending into the housing 3. The housing 3 is provided with a groove 14 that adapts to the slider 13. When the first button 9 and the second button 10 are pressed, the slider 13 is driven to slide in the groove 14, making the pressing smoother and increasing the pressing feel. At the same time, it also has a positioning effect, further increasing the stability of the button movement and making it less prone to deviation or shaking.

[0038] The first button 9 and the second button 10 are provided with baffles 15 on both sides, which are locked in the button cavity 12 to prevent the first button 9 and the second button 10 from falling out.

[0039] Existing fasteners may accidentally detach during daily use due to accidental activation of one side's button. This design, with the aforementioned structure, ensures that when either button is pressed, only the locking tongue 22 on that side moves, failing to completely release the lock between the female and male fasteners 2 and 1. Unlocking is only achieved when both the first button 9 and the second button 10 are pressed simultaneously. This prevents accidental detachment during daily use, ensuring product stability and a positive user experience. When used with a baby carrier, it greatly enhances the baby's safety.

[0040] The housing 3 is provided with an assembly groove 24, which is located on the outer edge of the mounting cavity 7. The magnetic attractor 6 includes a ring-shaped magnet and is installed in the assembly groove 24.

[0041] The lower end of the female buckle 2 is provided with an annular mounting groove 25, which corresponds to the assembly groove 24 inside the housing 3. An adsorption element 26 is provided inside the mounting groove 25, comprising an annular metal part and an annular magnet. When the female buckle 2 and the female buckle 1 are fastened together, the magnetic element 6 and the adsorption element 26 attract each other. The annular design allows for adsorption at various angles, increasing the adsorption area between the magnetic element 6 and the adsorption element 26, thereby enhancing the adsorption force between the female buckle 1 and the female buckle 2. This ensures a good fastening even for younger users or adults who may not be able to operate the buckle properly.

[0042] The female buckle 2 is provided with a mounting hole 27 that fits the outer circular outline of the mounting cavity 7. The inner wall of the mounting hole 27 is provided with a raised limiting step 28. The locking tongue 22 and the limiting step 28 abut against each other to achieve longitudinal locking, so the female buckle 1 cannot be removed upwards. The mounting cavity 7 is embedded in the mounting hole 27 to achieve lateral limiting, so the female buckle 1 cannot swing left or right.

[0043] The bottom of the buckle 2 is provided with a base plate 29 for sealing the mounting groove 25. After the adsorption member 26 is inserted into the mounting groove 25, the base plate 29 is installed by snapping. The base plate 29 also seals the bottom of the mounting hole 27 to prevent the fabric from protruding and embedding into the mounting hole 27 when the buckle 2 is sewn onto the strap, backpack or other items, thus affecting the snapping of the mounting cavity 7.

[0044] The bottom of the housing 3 is provided with a sub-buckle mounting groove 30 that adapts to the outer contour of the sub-buckle 2. When the sub-buckle 2 and the female buckle 1 are engaged, the sub-buckle 2 is installed in the sub-buckle mounting groove 30. The installation of the sub-buckle 2 and the female buckle 1 is relatively stable. The assembly of the mounting cavity 7 and the mounting hole 27 provides the first layer of lateral restraint, and the assembly of the outer contour of the sub-buckle 2 and the sub-buckle mounting groove 30 provides the second layer of lateral restraint. Furthermore, the outer wall of the sub-buckle 2 and the inner wall of the sub-buckle mounting groove 30 are mutually fitting inclined surfaces.

[0045] The larger contact area greatly increases the stability of the female buckle 1 and the female buckle 2 after they are fastened together, making them less prone to shaking.

[0046] The sub-buckle 1 includes a ring-shaped sub-buckle, which solves the problem of needing to be fastened at a fixed angle or being unable to be fastened at an angle.

[0047] One end of the housing 3 is provided with an installation part 31 for inserting the webbing. The installation part 31 is provided with a cover plate 32. The cover plate is rotatably connected to the housing 3 by a shaft connection. After the webbing is inserted, the cover plate 32 can be rotated to close, which is used to clamp the webbing and prevent the webbing from loosening.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this 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 this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A magnetic fastener, comprising a female fastener and a female fastener that can be attracted and fastened together, characterized in that, The female buckle includes a housing, a top cover that mates with the housing, a magnetic suction component and a button assembly installed inside the housing, and a mounting cavity with one end located inside the housing and the other end protruding from the bottom of the housing. A movable locking component is provided inside the mounting cavity, and the locking component partially protrudes from the mounting cavity to lock the female buckle. The locking component is linked to the button assembly. The locking component is released from locking with the female buckle by pushing the button assembly. The locking component is reset by its own rebound force.

2. The magnetic fastener according to claim 1, characterized in that, The locking assembly includes a first locking member, a second locking member located on both sides, and a center plate at the top. The top of the first locking member and the second locking member are provided with upwardly extending spring pieces that are respectively connected to the two ends of the center plate. The first locking member and the second locking member can move laterally through the spring pieces. A movable cavity is formed between the first locking member and the second locking member, and the first locking member and the second locking member move against the inner wall of the mounting cavity.

3. A magnetic fastener according to claim 2, characterized in that, The mounting cavity has through holes on both sides. The first locking member and the second locking member have locking tongues that pass through the through holes on their respective sides. The locking tongues engage with the sub-buckles to form a lock. The locking is achieved by pressing the first locking member and the second locking member on both sides to move the locking tongues inward into the mounting cavity.

4. A magnetic fastener according to claim 1, characterized in that, The button assembly includes a first button and a second button located on both sides of the housing, and an elastic element supported between the first button and the second button. Button cavities are formed on both sides of the housing, and the first button and the second button are movably installed in the button cavities, with their outer ends exposed outside the button cavities.

5. A magnetic fastener according to claim 4, characterized in that, The first button and the second button have sliders extending into the housing inside. The housing has grooves that fit the sliders. When the first button and the second button are moved, the sliders slide in the grooves. The first button and the second button have protruding stops on both sides.

6. A magnetic fastener according to claim 1, characterized in that, The housing has an assembly groove located on the outer edge of the mounting cavity, and the magnetic component is installed in the assembly groove.

7. A magnetic fastener according to claim 1, characterized in that, The lower end of the male buckle is provided with an annular mounting groove, and an adsorption component is provided in the mounting groove. When the male buckle and the female buckle are fastened together, the magnetic component and the adsorption component are attracted to each other.

8. A magnetic fastener according to claim 3, characterized in that, The latch is provided with a mounting hole that adapts to the outer contour of the mounting cavity. The inner wall of the mounting hole is provided with a raised limiting step. The latch and the limiting step abut against each other to achieve locking. The upper end of the latch is provided with a guide surface, and the upper end of the limiting step is provided with a guide surface.

9. A magnetic fastener according to claim 1, characterized in that, The bottom of the housing is provided with a buckle mounting groove that is adapted to the outer contour of the buckle. When the buckle and the female buckle are engaged, the buckle is installed in the buckle mounting groove. The outer wall of the buckle and the inner wall of the buckle mounting groove are mutually fitting inclined surfaces.

10. A magnetic fastener according to claim 1, characterized in that, One end of the housing is provided with a mounting part for inserting a webbing, and the mounting part is provided with a cover plate that can be flipped open and closed.

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