Magnetic snap

Abstract

The utility model relates to a magnetic attraction buckle, including mutually attracted female buckle and male buckle, the female buckle includes base and is used for and the outer cover of base connection, the base is equipped with the cavity for installing locking male buckle in, its characterized in that, the cavity in the base is equipped with button, locking piece and magnetic attraction piece, button linkage locking piece, locking piece partial penetration cavity and the male buckle locking of back, button includes the top rod for and locking piece linkage, locking piece is equipped with the contact surface for and top rod cooperation, the top rod is away from the contact surface in the female buckle and male buckle locking state, the top rod is close to the contact surface in the female buckle and male buckle unlocking state, button is equipped with the push block for pushing male buckle away from the female buckle, push block is along with button activity and with male buckle top surface contact, pushes male buckle to the direction of away from the female buckle.

Description

Technical Field

[0001] This utility model relates to the field of fastener technology, and in particular to magnetic fasteners. 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 the mutual magnetic force. However, the attraction between the two magnets may be insufficient, causing them to detach during use. Furthermore, the male and female clasps may wobble or shift during locking, resulting in unstable locking. Overall, the product quality is generally considered average. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model provides a magnetic snap fastener. To solve the above-mentioned technical problems, this utility model provides the following technical solution: a magnetic snap fastener, comprising a female snap fastener and a female snap fastener that attract each other; the female snap fastener includes a base and an outer cover for connecting to the base; the base has a cavity for installing and locking the female snap fastener; the cavity of the base contains a button, a locking component, and a magnetic component; the button is linked to the locking component; the locking component partially protrudes from the cavity and locks with the female snap fastener on the back.

[0005] The button includes a push rod for linkage with the locking member, and the locking member has a contact surface for engaging with the push rod; when the female and female buckles are locked, the push rod is away from the contact surface, and when the female and female buckles are unlocked, the push rod is closer to the contact surface.

[0006] The button is equipped with a push block for pushing the male buckle away from the female buckle. The push block moves with the button and contacts the top surface of the male buckle, pushing the male buckle away from the female buckle.

[0007] When the button is stationary, the male buckle moves closer to the female buckle, and the female buckle guides the male buckle to lock with the locking component through the magnetic attraction component; when the button is subjected to force and moves inward, the locking component linked to the button retracts inward through the contact between the push rod and the contact surface, and the locking component separates from the male buckle; when the button is active, the push block moves with the button, and the push block contacts the male buckle, changing the position between the male buckle and the female buckle.

[0008] Furthermore, the outer side of the locking member is provided with a surrounding groove that surrounds the inner end of the top rod, and the inner end of the top rod moves away from or touches the inner wall of the surrounding groove as the button moves.

[0009] Furthermore, the contact surface on the locking member includes a first contact surface located on the inner wall of the surrounding groove, and the push block is provided with a second contact surface and a third contact surface distributed along the direction of button movement. In the locked state, the second contact surface and the third contact surface are away from the first contact surface, and in the unlocked state, the second contact surface and the third contact surface are close to the first contact surface.

[0010] Furthermore, the inner wall of the surrounding groove is provided with a sliding groove arranged in the front-to-back direction, and the inner surface of the outer cover is provided with a limiting post. When the outer cover is installed with the base, the limiting post and the sliding groove are adapted to each other.

[0011] Furthermore, the locking component includes two symmetrical locking parts and a spring piece connected in the middle. The locking parts are provided with the surrounding groove on the outside. The push rod of the button moves the two locking parts to move closer to or away from the center through the spring piece. A space for movement is formed between the two locking parts. The cavity is provided with a mounting cavity protruding towards the back of the base. The magnetic suction component is located at the bottom of the mounting cavity, and the movement of the two locking parts is restricted by the inner wall of the mounting cavity.

[0012] Furthermore, the mounting cavity has first through holes on both sides. The locking tongues on the outer sides of the two locking parts pass through the first through holes on their respective sides and then lock onto the buckle to form a lock. Pressing the two locking parts causes the locking tongues to move inward and retract into the mounting cavity to unlock.

[0013] Furthermore, the base has a first protruding ring on its back, the sub-buckle is annular and has a second protruding ring near the female buckle, the inner side of the second protruding ring has an annular barb for locking with the locking member, the top surface of the sub-buckle on the outer side of the second protruding ring is in contact with the push block, the mounting cavity passes through the central hole of the second protruding ring, the inner wall of the central hole is provided with a step away from the female buckle, the chassis with the adsorption member is embedded in the annular structure and in contact with the step; when the female buckle and the sub-buckle are assembled, the second protruding ring is embedded in the first protruding ring.

[0014] Furthermore, the base has symmetrical button cavities on both sides, and the buttons are located on the button cavities. The upper and lower ends of the two buttons are connected by an elastic element. The push rod and push block are located inside the buttons and distributed along the front and back direction. The locking element is provided in the area enclosed between the elastic element and the button. The button cavity is provided with a second through hole for the push block to pass through and contact the top surface of the buckle.

[0015] Furthermore, the cavity is provided with several limiting blocks. When the locking member moves, it approaches or moves away from the inner side of some of the limiting blocks. A limiting groove is formed between two adjacent limiting blocks distributed along the upper and lower sides. The top rod moves left and right along the limiting groove.

[0016] Furthermore, the lower end of the base is provided with a mounting position for threading the webbing, and the mounting position is provided with a cover plate that can be flipped open and closed.

[0017] Compared with the prior art, the beneficial effects that this utility model can achieve are:

[0018] The female buckle of this utility model includes a base and an outer cover, as well as a magnetic attractor, a locking component, and a button installed in the cavity of the base. The locking component is linked to the button; pressing the button moves the locking component to release the locking relationship with the female buckle. The locking component resets itself due to the spring force of the button and the locking component itself. The locking component in this design uses a spring-loaded contact to connect the two locking parts. The spring-loaded contact unlocks or locks itself through its physical structure. 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 it. After locking, the locking component resets itself due to its own spring force, making operation convenient and user-friendly.

[0019] The mounting cavity encloses 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. Constrained by the mounting cavity, the stability of the movement is greatly increased, making it less prone to shaking and ensuring the excellent quality of the product.

[0020] The installation of the male and female buckles is also relatively stable. The assembly of the mounting cavity of the female buckle and the center hole of the male buckle forms the first lateral limit, and the assembly of the first protruding ring of the male buckle and the first protruding ring of the female buckle forms the second lateral limit, 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

[0021] Figure 1 It is a front 3D view of the magnetic clasp in the engaged state;

[0022] Figure 2 It is a three-dimensional view of the back of the buckle when the female and female buckles are separated;

[0023] Figure 3 This is a diagram showing the magnetic clasp in disassembled state;

[0024] Figure 4 This is an internal diagram showing the removal of the outer cover from the female buckle;

[0025] Figure 5 This is a diagram showing the buttons and base separated.

[0026] Figure 6 This is a picture of the back of the button;

[0027] Figure 7 This is a diagram showing the disassembled state of the button and locking mechanism;

[0028] Figure 8 This is a picture of the back of the outer cover;

[0029] Figure 9 This is a cross-sectional structural diagram of the magnetic clasp.

[0030] Reference numerals: 1. Female buckle, 2. Female buckle, 3. Base, 4. Outer cover, 5. Button, 6. Magnetic component, 7. Cavity, 8. Locking component, 9. Guide part, 10. Cover plate, 11. Elastic component, 12. Button cavity, 13. Push rod, 14. Push block, 15. Top surface of female buckle, 16. Enclosing groove, 17. First contact surface, 18. Second contact surface, 19. Third contact surface, 20. Slide groove, 21. Limiting post, 22. Locking part, 23. Spring piece, 24. Limiting block, 25. Limiting groove, 26. Mounting position, 27. Cover plate, 28. First convex ring, 29. Second convex ring, 30. Annular barb, 31. Stop block, 32. Mounting cavity, 33. Elastic component, 34. Step, 35. Chassis, 36. Adsorption component, 37. Center hole, 38. Locking tongue, 39. First through hole, 40. Positioning groove, 41. Second through hole. Detailed Implementation

[0031] 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.

[0032] like Figures 1-9 As shown, the magnetic snap fastener includes a female snap 1 and a female snap 2 that can be magnetically attached to each other. The female snap 2 is used to install on backpacks, baby carriers, child seats, etc. The female snap 2 is fixed by magnetic attraction. The female snap 1 includes a base 3 and an outer cover 4 for connecting to the base 3. The base 3 has a cavity 7 for installing and locking the female snap. The outer cover 4 covers the cavity 7. The cavity 7 of the base has a button 5, a locking element 8 and a magnetic element 6. The button 5 is linked to the locking element 8. Pressing the button 5 to move the locking element 8 releases the locking relationship with the female snap 2. The locking element 8 partially protrudes from the cavity 7 and locks with the female snap 2 on the back of the base 3.

[0033] The button 5 includes a push rod 13 for linkage with the locking member 8. The locking member 8 is provided with a contact surface for cooperating with the push rod. When the female buckle 1 and the female buckle 2 are locked, the push rod 13 is away from the contact surface. When the female buckle 1 and the female buckle 2 are unlocked, the push rod 13 is close to the contact surface.

[0034] The button 5 is provided with a push block 14 for pushing the sub-buckle 2 away from the female buckle 1. The push block 14 moves with the button 5 and contacts the top surface 15 of the sub-buckle, pushing the sub-buckle 5 away from the female buckle 1.

[0035] When the button 5 is stationary, the male buckle 2 moves closer to the female buckle 1, and the female buckle 1 guides the male buckle 2 to lock with the locking member 8 through the magnetic attraction member 6; when the button 5 is subjected to force and moves inward, the locking member 8 linked with the button retracts inward through the contact between the push rod and the contact surface, and the locking member separates from the male buckle; during the movement of the button, the push block moves with the button, and the push block contacts the male buckle, changing the position between the male buckle and the female buckle.

[0036] A surrounding groove 16 is provided on the outside of the locking member 8 to surround the inner end of the top rod 13. The inner end of the top rod 13 moves away from or touches the inner wall of the surrounding groove 16 as the button 5 moves.

[0037] The contact surface on the locking member 8 includes a first contact surface 17 located on the inner wall of the surrounding groove 16. The push block 14 is provided with a second contact surface 18 and a third contact surface 19 distributed along the direction of button movement. In the locked state, the second contact surface 18 and the third contact surface 19 are away from the first contact surface 17. In the unlocked state, the second contact surface 18 and the third contact surface 19 are close to the first contact surface 17.

[0038] The inner wall of the surrounding groove 16 is provided with a sliding groove 20 arranged in the front-to-back direction, and the inner surface of the outer cover 4 is provided with a limiting post 21. When the outer cover 4 and the base 3 are installed, the limiting post 21 and the sliding groove 20 are adapted to each other.

[0039] The locking component 8 includes two symmetrical locking parts 22 and a connecting spring 23. Specifically, two parallel V-shaped springs connect the two locking parts 22. The locking parts 22 have surrounding grooves 16 on their outer sides. The push rod 13 of the button 5 moves the two locking parts 22 closer to or further away from the center via the springs, thus unlocking or locking with the buckle 2. A movable space is formed between the two locking parts 22. The cavity 7 has a mounting cavity 32 protruding towards the back of the base 3. The magnetic suction component 6 is located at the bottom of the mounting cavity 32, and the movement of the two locking parts 22 is restricted by the inner wall of the mounting cavity 32. The mounting cavity 32 surrounds the locking component 8, and the locking component 8 always moves within the mounting cavity 32. Constrained by the mounting cavity 7, it can only move along a set pressing trajectory, increasing the stability of the locking component 8, preventing it from shaking, and ensuring product quality.

[0040] The width and thickness of the spring piece 19 are smaller than those of the locking part 22, so only a slight external force is needed for the two locking parts 16 to move together. The locking part 22 and the spring piece 19 are integrally formed, requiring no assembly, making the use and installation of the entire magnetic snap more convenient. A movable space is formed between the two locking parts 22. When the button 5 is pressed, the push rod 13 of the button 5 pushes the two locking parts 16 to gradually move closer together. After releasing the button, the two locking parts 22 are reset by the rebound force of the spring piece 19, and re-fit against the two ends of the inner wall of the mounting cavity 32.

[0041] The mounting cavity 32 has first through holes 39 on both sides. The locking tongues 38 on the outer sides of the two locking parts 22 pass through the first through holes on their respective sides and lock onto the buckle 2 to form a lock. Pressing the two locking parts 22 moves the locking tongues 38 inward and into the mounting cavity 32 to unlock. There are two first through holes 29 on the left and two on the right sides, corresponding to the two locking tongues 38. The symmetrical arrangement provides better stability.

[0042] The base 3 has a first protruding ring 28 on its back. The sub-buckle 2 is annular and has a second protruding ring 29 near the female buckle. The inner side of the second protruding ring 29 has an annular barb 30 for locking with the locking member 8. The top surface 15 of the sub-buckle on the outer side of the second protruding ring 29 is in contact with the push block 14. The mounting cavity passes through the central hole 37 of the second protruding ring. The inner wall of the central hole is provided with a step 34 away from the female buckle. The base with the adsorption member 36 is embedded in the annular structure and contacts the step 34. When the female buckle 1 and the sub-buckle 2 are assembled, the second protruding ring 29 is embedded in the first protruding ring 28. The locking tongue 22 on the locking member inside the female buckle 2 can be locked by hooking the annular hook 30 of the sub-buckle at any position, which solves the problem of being able to lock at a fixed angle or being unable to lock at an angle. The protruding ring design facilitates the quick assembly of the female buckle 1 and the sub-buckle 2 at any angle.

[0043] The outer side of the latch 38 is provided with an inclined guide 9. The guide 9 is an inclined slope. During the engagement of the male buckle 2 and the female buckle 1, the male buckle 2 can more easily push open the latch 22 along the guide 9 to achieve assembly with the female buckle 1, which facilitates the user's assembly.

[0044] The adsorption component 36 includes metal parts, magnets, etc. When the male buckle 2 and the female buckle 1 are fastened together, the magnetic adsorption component 6 and the adsorption component 36 are attracted to each other.

[0045] The base 3 has symmetrical button cavities 12 on both sides. The buttons 5 are located on the button cavities 12 with their outer ends exposed outside the button cavities 12 for user pressing. The upper and lower ends of the two buttons 5 are connected by an elastic element 33. The push rod 13 and push block 14 are located inside the buttons 5 and distributed along the front-back direction. The locking element 8 is located in the area enclosed between the elastic element 33 and the buttons 5. The button cavity 12 has a second through hole 41 for the push block 14 to pass through and contact the top surface 15 of the buckle. The elastic element 11 adopts an outwardly arched arc structure. The elastic element 33 is integrally formed with the two buttons 5. After the two pressing parts 9 are pressed, they are reset by the rebound force of the elastic element 11.

[0046] The button cavity 12 has positioning grooves 40 on its upper and lower sides that limit the sliding stroke. The buttons 5 have stops 31 on their upper and lower sides. When the buttons 5 are pressed, the stops 31 slide within the positioning grooves 40. During operation, both buttons 5 can only move within the button cavity 12. When pressed inward to a certain extent, the stops 31 move inward to the inner end of the positioning grooves 40, limiting the maximum inward pressing distance of the two buttons 5 and preventing damage from excessive pressing. When either button 5 is accidentally pressed, only the locking tongue 22 on one side moves, and the locking of the male latch 2 and female latch 1 cannot be completely released. Both buttons 5 must be pressed simultaneously to unlock, preventing accidental disengagement during daily use, ensuring product stability, and providing a good user experience.

[0047] The cavity 7 is provided with several limiting blocks 24. When the locking member 8 moves, it approaches or moves away from the inner side of some of the limiting blocks. A limiting groove 25 is formed between two adjacent limiting blocks distributed vertically. The push rod 13 moves left and right along the limiting groove 25. Pressing the button 5 causes the push rod 13 to move towards the center along the limiting groove 25. The elastic member 33 deforms, causing the two locking parts 22 on the locking member to move towards the center. The first inclined surface gradually comes into contact with the second and third inclined surfaces. The locking tongue on the male buckle disengages from the annular hook, releasing the locking state between the female buckle and the male buckle.

[0048] One end of the base 3 is provided with an installation position 26 for inserting the webbing. A cover plate 27 is provided on the installation position 26. The cover plate is rotatably connected to the base 3 by a shaft connection. After the webbing is inserted, the cover plate 27 can be rotated to close, which is used to clamp the webbing and prevent the webbing from loosening.

[0049] The specific usage of this magnetic clasp is as follows:

[0050] 1) The installation of female buckle 1 and female buckle 2 is as follows:

[0051] Bring the first protruding ring 28 on the back of the female buckle 1 close to the second protruding ring 29 on the front of the female buckle 2. Under the mutual attraction force of the magnetic suction member 6 and the adsorption member 36, the two are attached together. The second protruding ring 29 is embedded in the first protruding ring 28. The inner side of the second protruding ring 29 pushes and opens the locking tongue 38 on the back of the female buckle. The locking tongue 38 is pressed and retracts into the mounting cavity 32 until it connects with the annular barb 30 on the first protruding ring 28. At this time, the locking tongue 38 extends out of the mounting cavity 32 and resets to lock the annular barb 30.

[0052] 2) The unlocking process of female buckle 1 and female buckle 2:

[0053] Press the buttons 5 on the left and right sides of the female buckle 1. The push rod 13 and push block 14 on the button 5 press the locking part 22 and the top surface 15 of the female buckle 8 towards the center. The second contact surface 18 and the third contact surface 19 on the upper push rod 13 gradually press towards the first contact surface 17, pressing the two locking parts 22 towards the center, causing the locking tongue 38 to retract into the mounting cavity 32, and the locking tongue 38 of the female buckle 1 and the annular barb 38 of the female buckle 2 are unlocked. At the same time, the push block 14 on the lower side passes through the second through hole 41 on the mounting cavity 12 and touches the top surface 15 of the female buckle on the back of the base, pushing the female buckle 15 away from the female buckle 1, completing the separation and unlocking of the female buckle 1 and the female buckle 2.

[0054] 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 snap fastener, comprising a female snap fastener and a female snap fastener that attract each other, the female snap fastener comprising a base and an outer cover for connecting to the base, the base having a cavity for mounting and locking the female snap fastener, characterized in that, The base cavity is equipped with a button, a locking component and a magnetic component. The button is linked to the locking component, and the locking component partially protrudes from the cavity to lock with the buckle on the back. The button includes a push rod for linkage with the locking member, and the locking member has a contact surface for engaging with the push rod; when the female and female buckles are locked, the push rod is away from the contact surface, and when the female and female buckles are unlocked, the push rod is closer to the contact surface. The button is equipped with a push block for pushing the male buckle away from the female buckle. The push block moves with the button and contacts the top surface of the male buckle, pushing the male buckle away from the female buckle. When the button is stationary, the male buckle moves closer to the female buckle, and the female buckle guides the male buckle to lock with the locking component through the magnetic attraction component; when the button is subjected to force and moves inward, the locking component linked to the button retracts inward through the contact between the push rod and the contact surface, and the locking component separates from the male buckle; when the button is active, the push block moves with the button, and the push block contacts the male buckle, changing the position between the male buckle and the female buckle.

2. The magnetic clasp according to claim 1, characterized in that, The locking member has a surrounding groove on the outside that surrounds the inner end of the top rod. The inner end of the top rod moves away from or touches the inner wall of the surrounding groove as the button moves.

3. The magnetic clasp according to claim 2, characterized in that, The contact surface on the locking member includes a first contact surface located on the inner wall of the surrounding groove. The push block is provided with a second contact surface and a third contact surface distributed along the direction of button movement. In the locked state, the second contact surface and the third contact surface are away from the first contact surface. In the unlocked state, the second contact surface and the third contact surface are close to the first contact surface.

4. The magnetic clasp according to claim 2, characterized in that, The inner wall of the surrounding groove is provided with a sliding groove arranged in the front-to-back direction, and the inner surface of the outer cover is provided with a limiting post. When the outer cover is installed with the base, the limiting post and the sliding groove are adapted to each other.

5. The magnetic clasp according to claim 2, characterized in that, The locking component includes two symmetrical locking parts and a spring piece connected in the middle. The locking parts are provided with the surrounding groove on the outside. The push rod of the button moves the two locking parts to move closer to or away from the center through the spring piece. A space for movement is formed between the two locking parts. The cavity is provided with a mounting cavity protruding towards the back of the base. The magnetic suction component is located at the bottom of the mounting cavity, and the movement of the two locking parts is restricted by the inner wall of the mounting cavity.

6. The magnetic clasp according to claim 5, characterized in that, The mounting cavity has first through holes on both sides. The locking tongues on the outer sides of the two locking parts pass through the first through holes on their respective sides and lock onto the buckle to form a lock. Pressing the two locking parts causes the locking tongues to move inward and retract into the mounting cavity to unlock.

7. The magnetic clasp according to claim 5, characterized in that, The base has a first protruding ring on its back. The sub-buckle is annular and has a second protruding ring near the female buckle. The inner side of the second protruding ring has an annular barb for locking with the locking element. The top surface of the sub-buckle on the outer side of the second protruding ring is in contact with the push block. The mounting cavity passes through the central hole of the second protruding ring. The inner wall of the central hole is provided with a step away from the female buckle. The chassis with the adsorption element is embedded in the annular structure and contacts the step. When the female buckle and the sub-buckle are assembled, the second protruding ring is embedded in the first protruding ring.

8. The magnetic clasp according to claim 1, characterized in that, The base has symmetrical button cavities on both sides, and the buttons are located on the button cavities. The upper and lower ends of the two buttons are connected by an elastic element. The push rod and push block are located inside the buttons and distributed in the front-back direction. The locking element is provided in the area enclosed between the elastic element and the button. The button cavity has a second through hole for the push block to pass through and contact the top surface of the buckle.

9. The magnetic clasp according to claim 1, characterized in that, The cavity is provided with several limiting blocks. When the locking member moves, it approaches or moves away from the inner side of some of the limiting blocks. A limiting groove is formed between two adjacent limiting blocks distributed along the upper and lower sides. The top rod moves left and right along the limiting groove.

10. The magnetic clasp according to claim 1, characterized in that, The lower end of the base is provided with a mounting position for threading webbing, and the mounting position is provided with a cover plate that can be flipped open and closed.

Images