Magnetic buckle

Abstract

The utility model discloses a magnetic attraction buckle, and relates to the technical field of magnetic attraction buckles, in particular to a magnetic attraction buckle which comprises a bottom piece, a magnetic attraction buckle body and a magnetic attraction buckle body. The locking piece comprises a second clamping hook; a slide way allowing the locking piece to be inserted in the first direction and a locking hole allowing the spring bolt to be inserted in the second direction are formed in the face piece, the first direction is perpendicular to the second direction, and when the spring bolt is inserted in the locking hole, the first clamping hook and the second clamping hook in the slide way can be mutually locked; a second through hole is formed in the surface of the bottom plate, and the projection, in the second direction, of the first clamping hook is located in the second through hole; according to the magnetic buckle, the linear clamping hooks are arranged in the spring bolt and the locking piece correspondingly, so that the problems that in the locking process, the stroke of the locking piece is long, and the insertion resistance change of the spring bolt is not linear are solved, and therefore the use experience is improved.

Description

Technical Field

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

[0002] Baby carrier buckles are a common type of accessory. In our daily lives, they are often used in the connection points of baby carriers and baby hip seats, and are mostly used in the connection parts between the components of the carrier. They play a crucial role in the quick assembly and disassembly of the carrier. There are various types of buckles available, including knob buckles, side buckles, and magnetic buckles.

[0003] However, the magnetic latch tongue part in the existing technology has multiple hook structures, which makes demolding difficult. Therefore, it is necessary to use a left and right mold closing method for production, which makes the mold structure complex, increases production costs and reduces the yield rate.

[0004] In conclusion, how to solve the problems of high production costs and low yield of existing magnetic snap fasteners is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the purpose of this utility model is to provide a magnetic snap fastener, which solves the problems of long travel of the locking component and non-linear change of locking tongue insertion resistance during the locking process by setting linear hooks in the locking tongue and locking component respectively, thereby improving the user experience.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A magnetic clasp, comprising:

[0008] The base component includes a base plate and a locking tongue, wherein the locking tongue is fixed to the base plate and a first latch is provided on the side of the locking tongue;

[0009] Locking element, including a second latch;

[0010] The face piece has a slide for inserting the locking member in a first direction and a locking hole for inserting the locking tongue in a second direction. The first direction is perpendicular to the second direction. When the locking tongue is inserted into the locking hole, the first hook can lock with the second hook in the slide.

[0011] The base plate surface is provided with a second through hole, and the projection of the first hook along the second direction is located in the second through hole.

[0012] Preferably, the first latch is provided on both opposite sides of the locking tongue;

[0013] The locking component includes two sets of pressing components that move relative to each other along the first direction. The pressing components are provided with a second hook for locking with the first hooks on both sides of the locking tongue.

[0014] Preferably, an elastic element is provided between the two sets of pressing elements along the first direction to drive the two sets of pressing elements to move relative to each other;

[0015] Alternatively, an elastic element may be provided between the pressing member and the surface member along the first direction to drive the pressing member and the surface member to move relative to each other;

[0016] The pressing component is slidably installed in the slide rail, and limit blocks are respectively provided at both ends of the slide rail to limit the maximum stroke displacement of the pressing component.

[0017] Preferably, the pressing member has a frame structure, the second hook is disposed on the inner side of one end of the pressing member, and a shoulder is disposed on the outer side of the other end of the pressing member for abutting against the limiting block.

[0018] Preferably, the latch is a square column structure, the first hook is disposed on the side ends of both sides of the latch, and the remaining side of the latch is provided with a slot arranged along the second direction;

[0019] The surface component has a guide post inside. When the lock tongue is inserted into the locking hole, the guide post can be engaged in the slot to restrict the lock tongue from rotating along the axis of the second direction.

[0020] Preferably, the slot is a tapered slot, and the opening on the side of the slot near the end of the latch is larger than the opening on the other side;

[0021] The guide post is a tapered structure adapted to the slot.

[0022] Preferably, one end of the guide post is fixedly connected to the open end of the locking hole, and the other end is fixedly provided with a snap-fit ​​seat. The snap-fit ​​seat and the corresponding positions inside the lock tongue are provided with mutually attractive magnet pairs.

[0023] Preferably, at least one of the back sides of the first hook and the second hook is provided with a guide surface to ensure that the back sides of the first hook and the second hook make line contact when they come into contact.

[0024] Preferably, the distance between the locking surface of the first hook and the reference surface of the base plate is equal to the distance between the locking surface of the second hook and the reference surface of the surface piece. When the first hook and the second hook are engaged, the locking surfaces of the first hook and the second hook, as well as the reference surfaces of the base plate and the surface piece, all abut against each other.

[0025] Preferably, the locking back sides of the first hook and the second hook are symmetrical about a central point, and the locking back sides each have a non-zero angle with the locking surface.

[0026] The magnetic clasp provided by this utility model has at least the following advantages compared with the prior art:

[0027] By setting a second through hole in the bottom part and making the projection of the first hook on the bottom plate fall within the second through hole, the bottom part can be produced by demolding from the top and bottom, which helps to simplify the production mold, reduce production costs, and effectively improve production efficiency and yield. Attached Figure Description

[0028] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of the structure of the magnetic clasp provided by this utility model;

[0030] Figure 2 A longitudinal sectional view of the magnetic snap fastener provided by this utility model;

[0031] Figure 3 A cross-sectional view of the magnetic snap provided by this utility model;

[0032] Figure 4 for Figure 3 Sectional view at point AA;

[0033] Figure 5 This is a schematic diagram of the structure of the surface component provided by this utility model;

[0034] Figure 6 This is a schematic diagram of the structure of the base component provided by this utility model;

[0035] Figure 7 A cross-sectional view of the base component provided by this utility model;

[0036] Figure 8 A schematic diagram of the structure of the locking component provided by this utility model;

[0037] Figure 9 This is a schematic diagram of the pressing component provided by this utility model;

[0038] Figure 10 This is a cross-sectional view of the pressing component provided by this utility model.

[0039] In the picture:

[0040] 1. Face piece; 11. Slide rail; 12. Limiting block; 13. First through hole; 14. Locking hole; 15. Guide post;

[0041] 2. Base component; 21. Locking tongue; 22. First latch; 23. Slot; 24. Second through hole; 25. Base plate;

[0042] 3. Locking component; 31. First pressing component; 311. Second hook; 312. Shoulder; 313. Limiting post; 32. Second pressing component; 33. First spring; 34. Second spring. Detailed Implementation

[0043] 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.

[0044] The core of this utility model is to provide a magnetic snap fastener, which solves the problems of long travel of the locking component and non-linear change of locking tongue insertion resistance during the locking process by setting linear hooks in the locking tongue and locking component respectively, thereby improving the user experience.

[0045] Please refer to Figures 1-10 A magnetic clasp, comprising:

[0046] The bottom component 2 includes a bottom plate 25 and a locking tongue 21. The locking tongue 21 is fixed to the bottom plate 25, and a first hook 22 is provided on the side of the locking tongue 21.

[0047] Locking component 3 includes a second latch 311;

[0048] The surface part 1 has a slide 11 for the locking member 3 to be inserted in a first direction and a locking hole 14 for the locking tongue 21 to be inserted in a second direction. The first direction is perpendicular to the second direction. When the locking tongue 21 is inserted into the locking hole 14, the first hook 22 can lock with the second hook 311 in the slide 11.

[0049] The base plate 25 has a second through hole 24 on its surface, and the projection of the first hook 22 along the second direction is located in the second through hole 24.

[0050] like Figure 6 ,and Figure 7As shown, the projection of the first hook 22 along the second direction is within the cross section of the second through hole. Therefore, when producing the bottom part 2, it is possible to demold from top to bottom. That is, the lower mold is provided with a core that penetrates the second through hole 24, and the upper mold only needs to ensure the shape of the first hook 22. The overall structure of the upper and lower molds is relatively simple, the production cost is reduced, and the method of demolding from top to bottom can effectively improve production efficiency and yield.

[0051] In some embodiments, the latch 21 is provided with first hooks 22 on both opposite sides;

[0052] The locking member 3 includes two sets of pressing members that move relative to each other in a first direction. The pressing members are provided with a second hook 311 for locking with the first hook 22 on both sides of the locking tongue 21.

[0053] like Figure 2 As shown, the two sides of the locking tongue 21 are provided with first hooks 22, which cooperate with the two sets of second hooks 311 in the locking member 3 to lock, so that the locking tongue 21 has two different force points, thereby avoiding uneven force caused by the single point of force on the locking tongue 21, and thus preventing the locking tongue 21 from disengaging from the locking member 3 during the locking process.

[0054] In some embodiments, an elastic element is provided between the two sets of pressing elements along a first direction to drive the two sets of pressing elements to move relative to each other;

[0055] Alternatively, an elastic element may be provided between the pressing element and the surface element 1 along the first direction to drive the pressing element and the surface element 1 to move relative to each other;

[0056] The pressing component is slidably installed in the slide rail 11, and limit stops 12 are provided at both ends of the slide rail 11 to limit the maximum stroke displacement of the pressing component.

[0057] like Figure 1 , Figure 2 and Figure 8 As shown, the locking member 3 includes a first pressing member 31 and a second pressing member 32, both of which are slidably installed in the slide rail 11. A first spring 33 is provided between the inner frame end of the first pressing member 31 and the outer frame end of the second pressing member 32, and a second spring 34 is provided between the outer frame end of the first pressing member 31 and the inner frame end of the second pressing member 32. At the same time, limit posts 313 are provided at both ends of the first spring 33 and the second spring 34 corresponding to the surfaces of the first pressing member 31 and the second pressing member 32 for limiting the installation of the springs.

[0058] At the same time, such as Figure 5 As shown, in addition to the slide rail 11, the surface part 1 also has a first through hole 13 in the slide rail 11 for the spring to pass through, which facilitates the arrangement of the first pressing member 31 and the second pressing member 32, making the arrangement of the locking member 3 in the surface part 1 more compact, so as to reduce the overall size of the magnetic buckle.

[0059] When the first pressing member 31 and the second pressing member 32 press against each other, the first spring 33 and the second spring 34 are compressed and stored simultaneously. When the compression is released, the first spring 33 and the second spring 34 simultaneously drive the first pressing member 31 and the second pressing member 32 to reset.

[0060] In some embodiments, a first spring 33 is provided between the first pressing member 31 and the surface member 1, and a second spring 34 is provided between the second pressing member 32 and the surface member 1. That is, the first pressing member 31 and the second pressing member 32 are subjected to force relatively independently, and they do not affect each other when pressed.

[0061] In some embodiments, the pressing member has a frame structure, the second hook 311 is provided on the inner side of one end of the pressing member, and the other end of the pressing member is provided with a shoulder 312 for abutting against the limiting block 12.

[0062] like Figure 5 and Figure 9 As shown, in order to facilitate the pressing of the pressing component, one end of the pressing component is exposed outside the surface component 1. The pressing component at the outer end is provided with a shoulder 312, which abuts against the limiting block 12 on the inner wall of the surface component 1 to prevent the pressing component from completely separating from the surface component 1.

[0063] In some embodiments, the latch 21 is a square column structure, the first hook 22 is provided at the side ends of both sides of the latch 21, and the remaining side of the latch 21 is provided with a slot 23 arranged in the second direction.

[0064] The face piece 1 has a guide post 15 inside. When the locking tongue 21 is inserted into the locking hole 14, the guide post 15 can be engaged in the slot 23 to restrict the locking tongue 21 from rotating along the axis of the second direction.

[0065] like Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, the latch 21 adopts a square column structure and has a slot 23 on its side. After the latch 21 is inserted into the locking hole 14, the guide post 15 in the face piece 1 can be inserted into the slot 23, thereby restricting the rotation of the latch 21. That is, after the latch 21 is inserted into the locking hole 14, the latch 21 can no longer rotate relative to the face piece 1, thus ensuring the relative stability of the two parts of the magnetic snap fastener.

[0066] In some embodiments, the slot 23 is a tapered slot, and the opening of the slot 23 on the side near the end of the latch 21 is larger than the opening on the other side;

[0067] The guide post 15 is a tapered structure that is adapted to the slot 23.

[0068] like Figure 6As shown, the slot 23 on the side of the latch 21 is a straight slot. When the latch 21 is inserted into the locking hole 14, the guide post 15 is directly inserted into the slot 23.

[0069] In some embodiments, the slot 23 is a tapered slot with a large opening, and the guide post 15 matches its structure, that is, the insertion end is smaller. Therefore, when the locking tongue 21 is inserted into the locking hole 14, the guide post 15 with the smaller end size is inserted into the slot 23 with the larger opening size, so its blind insertion success rate is higher.

[0070] In some embodiments, one end of the guide post 15 is fixedly connected to the open end of the locking hole 14, and the other end is fixedly provided with a snap-fit ​​seat. The snap-fit ​​seat and the corresponding positions inside the locking tongue 21 are provided with mutually attractive magnet pairs.

[0071] like Figure 2 and Figure 3 As shown, a magnetic pair is provided inside the latch seat and at the end of the latch 21, which can attract the end of the latch 21 to actively approach the opening of the locking hole 14 and guide the latch 21 to be quickly inserted into the locking hole 14.

[0072] In some embodiments, at least one of the back surfaces of the first hook 22 and the second hook 311 is provided with a guide surface for making line contact when the back surfaces of the first hook 22 and the second hook 311 come into contact.

[0073] like Figure 2 As shown, when only one of the back surfaces of the first hook 22 and the second hook 311 is a guide surface that is inclined or curved, the two hooks 22 and the second hook 311 are in line contact when their back surfaces are in contact. When both of their back surfaces are guide surfaces, the two hooks are in line contact when their back surfaces are in line contact, which helps to reduce the frictional resistance when they are in contact.

[0074] In some embodiments, the distance between the locking surface of the first hook 22 and the reference surface of the base plate 25 is equal to the distance between the locking surface of the second hook 311 and the reference surface of the face piece 1. When the first hook 22 and the second hook 311 are engaged, the locking surfaces of the first hook 22 and the second hook 311, the base plate 25 and the reference surface of the face piece 1 all abut against each other.

[0075] like Figure 2 As shown, by limiting the distance between the locking surface of the first hook 22 and the reference surface of the base plate 25, and the distance between the second hook 311 and the reference surface of the face piece 1, the locking tongue 21 can be stably locked by the locking member 3 after being inserted into the locking hole 14, and the reference surfaces of the base plate 25 and the face piece 1 are tightly connected, thus avoiding the problem of the locking tongue 21 shaking or being not locked securely in the locking hole 14.

[0076] In some embodiments, the locking back sides of the first hook 22 and the second hook 311 are symmetrical about a point, and both locking back sides have a non-zero angle with the locking surface.

[0077] like Figure 2 As shown, the locking back surfaces of the first hook 22 and the second hook 311 are inclined surfaces with equal slopes. When they come into contact, as the insertion amount of the latch 21 increases, the overlapping area of ​​the two locking back surfaces increases linearly, that is, the insertion resistance of the latch 21 also increases linearly, which helps to improve the user experience.

[0078] In some embodiments, the two locking back surfaces are made of arcuate surfaces with equal and tangent curvature, or the two locking back surfaces are made of arcuate surfaces with non-constant curvature and equal rates of curvature, which can also achieve the above-mentioned purpose.

[0079] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0080] The magnetic clasp provided by this utility model has been described in detail above. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A magnetic clasp, characterized in that, include: The bottom component (2) includes a bottom plate (25) and a locking tongue (21). The locking tongue (21) is fixed to the bottom plate (25), and a first hook (22) is provided on the side of the locking tongue (21). The locking element (3) includes a second latch (311); The face piece (1) is provided with a slide (11) for the locking member (3) to be inserted in a first direction and a locking hole (14) for the locking tongue (21) to be inserted in a second direction. The first direction is perpendicular to the second direction. When the locking tongue (21) is inserted into the locking hole (14), the first hook (22) can lock with the second hook (311) in the slide (11). The base plate (25) has a second through hole (24) on its surface, and the projection of the first hook (22) along the second direction is located in the second through hole (24).

2. The magnetic clasp according to claim 1, characterized in that, The first hook (22) is provided on both opposite sides of the locking tongue (21). The locking member (3) includes two sets of pressing members that move relative to each other along the first direction. The pressing member is provided with a second hook (311) for locking with the first hook (22) on both sides of the locking tongue (21).

3. The magnetic clasp according to claim 2, characterized in that, An elastic element is provided between the two sets of pressing elements along the first direction to drive the two sets of pressing elements to move relative to each other; Alternatively, an elastic element may be provided between the pressing member and the surface member (1) along the first direction to drive the pressing member and the surface member (1) to move relative to each other; The pressing component is slidably installed in the slide (11), and limit blocks (12) are respectively provided at both ends of the slide (11) to limit the maximum stroke displacement of the pressing component.

4. The magnetic clasp according to claim 3, characterized in that, The pressing member has a frame structure. The second hook (311) is located on the inner side of one end of the pressing member, and a shoulder (312) is provided on the outer side of the other end of the pressing member for abutting against the limiting block (12).

5. The magnetic clasp according to claim 2, characterized in that, The latch (21) is a square column structure. The first hook (22) is provided on the side ends of both sides of the latch (21). The remaining side of the latch (21) is provided with a slot (23) arranged along the second direction. The face piece (1) is provided with a guide post (15). When the locking tongue (21) is inserted into the locking hole (14), the guide post (15) can be engaged in the slot (23) to restrict the locking tongue (21) from rotating along the axis of the second direction.

6. The magnetic clasp according to claim 5, characterized in that, The slot (23) is a tapered slot, and the opening of the slot (23) on the side near the end of the latch (21) is larger than the opening on the other side; The guide post (15) is a tapered structure adapted to the slot (23).

7. The magnetic clasp according to claim 5, characterized in that, One end of the guide post (15) is fixedly connected to the opening end of the locking hole (14), and the other end is fixedly provided with a snap-fit ​​seat. The snap-fit ​​seat and the corresponding positions inside the lock tongue (21) are provided with mutually attractive magnet pairs.

8. The magnetic clasp according to any one of claims 1-7, characterized in that, At least one of the back sides of the first hook (22) and the second hook (311) is provided with a guide surface for making line contact when the back sides of the first hook (22) and the second hook (311) are in contact.

9. The magnetic clasp according to claim 8, characterized in that, The distance between the locking surface of the first hook (22) and the reference surface of the base plate (25) is equal to the distance between the locking surface of the second hook (311) and the reference surface of the surface piece (1). When the first hook (22) and the second hook (311) are engaged, the locking surfaces of the first hook (22) and the second hook (311), as well as the reference surfaces of the base plate (25) and the surface piece (1), all abut against each other.

10. The magnetic clasp according to any one of claims 1-7, characterized in that, The locking back sides of the first hook (22) and the second hook (311) are symmetrical about a point, and the locking back sides have a non-zero angle with the locking surface.

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