Magnetic buckle for straps

Abstract

The strap magnetic buckle comprises a cover body and a base, the cover body comprises two pressing pieces, an upper cover and a lower cover, the upper cover and the lower cover can form a containing cavity after being clamped, the cover body is provided with two through holes which are communicated with the containing cavity and extend in the first direction, and the lower cover is provided with guide columns which are located in the through holes and extend in the first direction. The pressing pieces are provided with guide grooves matched with the guide columns so that the two pressing pieces can get close to and get away from each other, the lower cover is provided with a penetrating type round hole, and the upper cover is provided with a first magnet corresponding to the round hole. The base is provided with a protrusion capable of being arranged in the round hole in a penetrating mode, the protrusion is provided with a clamping groove capable of being connected to the pressing piece in a clamped mode and a second magnet capable of being magnetically attracted to the first magnet so as to limit the base to be separated from the cover body, in this way, alignment and manual operation are not needed in the buckling process through magnetic attraction buckling, the pressing piece moves in the fixed direction through the arrangement of the guide column, and the pressing piece can move in the fixed direction. Up-down twisting easily caused by track-free limiting during pressing is avoided, and opening and closing are more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of fixing devices, in particular to a magnetic buckle for a shoulder strap. Background Art

[0002] Strap buckle products are a common type of auxiliary devices. In our daily life, they are usually used in the connection of mother and baby waist stools and straps, and are mostly used in the connection between straps.

[0003] There are many types of buckles available, including knob buckles, side-release buckles, magnetic buckles, etc. Most straps use traditional buckles, which are cumbersome to operate and affect the appearance. The user experience is not good. The side pressing piece of the buckle is small and there is no magnetic structure. It can only be closed and opened manually. There is no track limit in the internal space of the buckle. It is easy to twist up and down when pressed, causing inconvenience in opening and closing.

[0004] Therefore, how to provide a magnetic shoulder buckle to at least partially avoid the above-mentioned disadvantages is a technical problem that technicians in this field currently need to solve. Utility Model Content

[0005] The utility model aims to provide a magnetic buckle for a shoulder strap, which does not require alignment and manual operation during the buckling process and can avoid the up and down twisting that is easy to occur when there is no track limit when pressing, making opening and closing more convenient.

[0006] In order to achieve the above object, the utility model provides a shoulder strap magnetic buckle, comprising:

[0007] The cover body comprises two pressing members, an upper cover and a lower cover which can form an accommodating cavity after being snapped together, the cover body is provided with two through holes which are connected to the accommodating cavity and extend along a first direction, the lower cover is provided with a guide column which is located inside the through hole and extends along the first direction, the pressing members are provided with a guide groove which is adapted to the guide column so that the two pressing members can approach and move away from each other, the lower cover is provided with a through circular hole, and the upper cover is provided with a first magnet corresponding to the circular hole;

[0008] The base is provided with a protrusion which can be inserted into the round hole, and the protrusion is provided with a slot which can be clamped on the pressing piece and a second magnet which can be magnetically attracted to the first magnet, so as to limit the base from being separated from the cover body.

[0009] Preferably, the pressing member also includes a pressing portion located outside the cover body, two pressing stops connected to the pressing portion, two abutting portions respectively connected to the two pressing stops, an elastic member located between the two abutting portions in the first direction and used for the pressing stop to abut against the inner wall of the cover body, and a spring sheet arranged on a pressing stop and capable of being engaged in the slot.

[0010] Preferably, the spring sheet includes a support rod portion and a bending portion, the support rod portion includes a first end connected to the abutting portion and a second end facing away from the abutting portion, the bending portion is connected to the second end and can be bent outward relative to the support rod portion, and the second end is also provided with a column spaced apart from the bending portion for abutting the bending portion bent inward.

[0011] Preferably, the elastic member is a compressed spring, and a clamping column is provided on the abutting portion to limit radial movement of the spring.

[0012] Preferably, the pressing portion, the pressing stopper, the abutting portion, the elastic member and the spring sheet are an integrated structure.

[0013] Preferably, the upper cover is provided with a first magnet groove for installing the first magnet, and the first magnet groove is provided with first pressure strips on both sides in the first direction for limiting the movement of the bending part along the second direction, and the first magnet groove is provided with second pressure strips on both sides in the third direction for limiting the movement of the elastic part along the second direction, and the first direction, the second direction and the third direction are perpendicular to each other.

[0014] Preferably, the upper cover is also provided with a clamping strip and a clamping claw, the clamping claws are located at both ends of the clamping strip in the first direction, the lower cover is provided with a clamping groove adapted to the clamping strip and a buckle hole adapted to the clamping claw, and the lower cover is also provided with a baffle to limit the movement of the elastic member along the third direction.

[0015] Preferably, the protrusion is provided with a second magnet groove for installing the second magnet, the second magnet groove is connected to the side of the base facing away from the second magnet, and the base is also provided with a sewing groove for fixing itself.

[0016] Preferably, a constriction structure is provided at one end of the protrusion facing away from the base, the first magnet slot is provided with a flaring portion adapted to the constriction structure, and colloid is provided between the first magnet and the first magnet slot and between the second magnet and the second magnet slot.

[0017] Preferably, each corner of the cover and the base is rounded.

[0018] Compared with the above-mentioned background technology, the utility model provides a magnetic shoulder buckle, which includes a cover body and a base. The cover body includes two pressing pieces, an upper cover and a lower cover which can form a accommodating cavity after being snapped together. The cover body is provided with two through holes which are connected to the accommodating cavity and extend along a first direction. The lower cover is provided with a guide column which is located inside the through hole and extends along the first direction. The pressing pieces are provided with guide grooves which are adapted to the guide columns so that the two pressing pieces can approach and move away from each other. The lower cover is provided with a through circular hole, and the upper cover is equipped with a first magnet corresponding to the circular hole. The base is provided with a protrusion which can be inserted into the circular hole, and the protrusion is provided with a slot which can be snapped into the pressing piece and a second magnet which can be magnetically attracted to the first magnet, so as to limit the base from separating from the cover body.

[0019] Specifically, when the protrusion passes through the through-type circular hole to the accommodating cavity formed after the upper cover and the lower cover are snapped together, the second magnet and the first magnet are tightly attracted and combined. This process does not require manual snapping. The slot on the installed protrusion can abut against the pressing piece to prevent the base from separating from the cover body. The pressing piece is provided with a guide groove to adapt to the guide column located inside the through hole set on the lower cover. Through the cooperation of the guide groove and the guide column, the two pressing pieces are able to approach and move away from each other in a first direction, which is used for the installation and disassembly of the cover body and the base. With such a configuration, the snapping process does not require alignment and manual operation through magnetic snapping, and the setting of the guide column allows the pressing piece to move in a fixed direction, avoiding the up and down twisting that is easy to occur when there is no track limit when pressing, making opening and closing more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] FIG1 is a schematic diagram of the structure of a magnetic buckle for a shoulder strap provided by an embodiment of the utility model;

[0022] FIG2 is an exploded view of a magnetic buckle for shoulder straps provided by an embodiment of the present invention;

[0023] FIG3 is a schematic diagram of the structure of the upper cover provided by an embodiment of the utility model;

[0024] FIG4 is a schematic diagram of the structure of a pressing member provided in an embodiment of the utility model;

[0025] Figure 5 is a schematic diagram of the structure of the lower cover provided by the utility model embodiment;

[0026] FIG6 is a schematic structural diagram of a base provided in an embodiment of the utility model;

[0027] FIG7 is a schematic diagram of the structure of the upper cover and the first magnet provided by an embodiment of the utility model;

[0028] FIG8 is a schematic diagram of the structure of the upper cover provided by the embodiment of the utility model after the first magnet is installed;

[0029] FIG9 is a schematic structural diagram of another perspective of the upper cover after the first magnet is installed provided by the embodiment of the utility model;

[0030] Figure 10 is a schematic diagram of the structure of the lower cover after the pressing member is installed according to an embodiment of the utility model;

[0031] FIG11 is a schematic structural diagram of another perspective of the lower cover after the pressing member is installed according to an embodiment of the utility model;

[0032] FIG12 is a schematic diagram of the structure of the cover and the base after installation provided by an embodiment of the utility model;

[0033] FIG13 is a schematic structural diagram of another perspective of the cover and base after installation provided by an embodiment of the utility model;

[0034] FIG14 is a schematic diagram of the structure of the cooperation between the base and the second magnet provided by an embodiment of the utility model;

[0035] Figure 15 is a cross-sectional view of the structure of the cover and the base before buckling provided in the utility model embodiment;

[0036] FIG16 is a cross-sectional view of the structure of the cover and the base after being buckled together according to an embodiment of the utility model;

[0037] FIG17 is a schematic diagram of the structure of the pressing member provided by an embodiment of the utility model in a stable state;

[0038] FIG18 is a schematic diagram of the structure of the pressing member provided by the embodiment of the utility model when it is ejected;

[0039] FIG19 is a schematic structural diagram of the pressing member provided in an embodiment of the present utility model before pressing;

[0040] Figure 20 is a schematic diagram of the structure of the pressing member after pressing the embodiment of the utility model provided;

[0041] Figure 21 is a schematic diagram of the structure of the elastic member when it cooperates with another embodiment of the utility model;

[0042] FIG. 22 is a schematic structural diagram of an elastic member provided in another embodiment of the present invention.

[0043] in:

[0044] 1-pressing member, 11-guide groove, 12-pressing portion, 13-pressing stopper, 14-abutting portion, 141-clamping column, 15-elastic member, 16-spring sheet, 161-support rod portion, 162-bending portion, 163-column;

[0045] 2-upper cover, 21-first magnet slot, 22-first pressure strip, 23-second pressure strip, 24-clip strip, 25-clip claw, 26-expansion portion, 27-ribbon hole;

[0046] 3-lower cover, 31-guide column, 32-round hole, 33-clip groove, 34-buckle hole, 35-baffle;

[0047] 4-base, 41-protrusion, 42-slot, 43-second magnet slot, 44-sewing slot, 45-shrinkage structure;

[0048] 5- first magnet;

[0049] 6- Second magnet. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0051] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0052] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left" and "right" etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation of the present invention.

[0053] The utility model aims to provide a magnetic buckle for a shoulder strap, which does not require alignment and manual operation during the buckling process and can avoid the up and down twisting that is easy to occur when there is no track limit when pressing, making opening and closing more convenient.

[0054] It should be noted that, in this embodiment, the X direction in the accompanying drawings is defined as the first direction, the Y direction is defined as the second direction, and the Z direction is defined as the third direction. The first direction, the second direction and the third direction are perpendicular to each other.

[0055] Please refer to FIG. 1 to FIG. 5 . To achieve the above-mentioned purpose, the utility model provides a shoulder strap magnetic buckle, comprising a cover body and a base 4 .

[0056] The cover body includes two pressing pieces 1, an upper cover 2 and a lower cover 3 which can form an accommodating cavity after being snapped together. The cover body is provided with two through holes which are connected to the accommodating cavity and extend along a first direction, and are used for installing two centrally symmetrical pressing pieces 1. The lower cover 3 is provided with a guide column 31 which is located inside the through hole and extends along the first direction. The pressing pieces 1 are provided with a guide groove 11 which is adapted to the guide column 31. By sliding the guide groove 11 along the guide column 31, the two pressing pieces 1 can be brought closer to and farther away from each other in the first direction.

[0057] Among them, the upper cover 2 is also provided with a webbing hole 27 located outside the accommodating cavity for installing and positioning the webbing, and the lower cover 3 is provided with a through circular hole 32, preferably, the axis of the circular hole 32 extends along the second direction, and the cross-section of the circular hole 32 perpendicular to its own axis is circular, and the upper cover 2 is installed with a first magnet 5 corresponding to the circular hole 32, and the first magnet 5 is located in the accommodating cavity.

[0058] Please refer to Figure 6. The base 4 is provided with a protrusion 41 that can be inserted into the circular hole 32. The protrusion 41 is inserted into the circular hole 32 to achieve the outer wall abutment between the base 4 and the lower cover 3. The protrusion 41 is provided with a slot 42 that can be snapped into the pressing member 1 and a second magnet 6 that can be magnetically attracted to the first magnet 5. The first magnet 5 and the second magnet 6 have opposite magnetic poles on the side facing each other to limit the base 4 from separating from the cover.

[0059] Please refer to Figure 14, in which the protrusion 41 is also provided with a second magnet groove 43 for installing the second magnet 6, and the second magnet groove 43 is connected to the side of the base 4 facing away from the second magnet 6 to facilitate the installation of the second magnet 6, and the base 4 is also provided with a sewing groove 44, which is fixedly connected by the sewing groove 44 and a cloth tape to achieve the fixation of the base 4 itself. At the same time, the cloth tape can encapsulate the second magnet groove 43 to prevent the second magnet 6 from detaching from the protrusion 41.

[0060] Please refer to Figures 12, 13, 15 and 16. When the protrusion 41 passes through the through-type circular hole 32 to the accommodating cavity formed by the upper cover 2 and the lower cover 3 after being snapped together, the second magnet 6 and the first magnet 5 are tightly attracted and joined. This process does not require manual snapping. The slot 42 on the installed protrusion 41 can abut against the pressing member 1 to prevent the base 4 from separating from the cover body. The pressing member 1 is provided with a guide groove 11 to adapt to the guide column 31 located inside the through hole provided on the lower cover 3. Through the cooperation of the guide groove 11 and the guide column 31, the two pressing members 1 are approached and moved away from each other in the first direction. The guide column 31 makes the pressing member slide along the track, better limiting the sliding range of the pressing member 1, and is used for the installation and removal of the cover body and the base 4. With such a configuration, the snapping process does not require alignment and manual operation through magnetic snapping, and the setting of the guide column 31 allows the pressing member 1 to move along a fixed direction, avoiding the up and down twisting that is easy to occur when there is no track limit when pressing, making the opening and closing more convenient.

[0061] Please refer to Figures 4, 10 and 11. Preferably, the pressing member 1 also includes a pressing portion 12 located outside the cover body, two pressing stops 13 connected to the pressing portion 12, two abutting portions 14 respectively connected to the two pressing stops 13, an elastic member 15 located between the two abutting portions 14 in the first direction and used for the pressing stop 13 to abut against the inner wall of the cover body, and a spring piece 16 arranged on a pressing stop 13 and capable of being engaged in the slot 42.

[0062] The pressing portion 12 extends to the outside of the cover body, which is convenient for pressing the pressing member 1 along the first direction to change the position of the spring piece 16 in the accommodating cavity, thereby changing the connection relationship between the spring piece 16 and the card slot 42, and realizing the disassembly of the base 4 relative to the cover body. At the same time, the pressing area of ​​the outer wall of the pressing portion 12 is large to increase the comfort when pressing. Preferably, the guide groove 11 is located in the middle of the pressing portion 12, and two pressing stops 13 are arranged at the two ends of the pressing portion 12 in the third direction for the installation of the abutting portion 14 and the spring piece 16, wherein the spring piece 16 is located between the two abutting portions 14 and adjacent to one of the abutting portions 14, and the elastic member 15 in a compressed state is provided between the two abutting portions 14 located in the first direction, so that the pressing stopper 13 abuts against the inner wall of the cover while driving the spring piece 16 and the card slot 42 to engage, and the elastic member 15 arranged at the outermost end of the pressing member 1 is symmetrical with the pressing member 1, so that the structure is more stable and more balanced, and the effect is also more stable when pressing.

[0063] Preferably, the spring piece 16 includes a support rod portion 161 and a bending portion 162, the support rod portion 161 includes a first end connected to the abutting portion 14 and a second end away from the abutting portion 14, the bending portion 162 is connected to the second end and can be bent outward relative to the support rod portion 161, and the second end is also provided with a column 163 spaced apart from the bending portion 162 for abutting the bending portion 162 bent inwardly.

[0064] Please refer to Figures 4, 17 and 18. The spring sheet 16 is provided with a bending portion 162, so that the spring sheet 16 can be bent more easily and flexibly at a fixed position. The connection between the support rod 161 and the bending portion 162 is thinner to form a bending point, so that the bending portion 162 can bend around the bending point to the two sides of the support rod 161, and it is easy to recover after bending. After the spring sheet 16 is hit by the protrusion 41, the spring is compressed, and the pressing member 1 moves toward the accommodating cavity to squeeze the elastic member 15, so that the protrusion 41 needs a greater impact force to pass through the spring sheet 16. Through the above-mentioned thinner bending point, after the protrusion 41 hits the spring sheet 16, the spring sheet 16 can be bent outward, and the protrusion 41 is easier to pass. At the same time, the second end of the support rod 161 is also provided with a column 163 spaced from the bending portion 162. The column 163 can resist the bending portion 162, increase the force points of the spring sheet 16, and make it more stable when pressing the pressing member 1.

[0065] Please refer to FIG. 19 and FIG. 20 . In one embodiment, the elastic member 15 is preferably a compressed spring. The abutment portion 14 is provided with a clamping column 141 for limiting the radial movement of the spring. The elastic force of the spring can satisfy the pressing process of the pressing member 1 .

[0066] Please refer to Figures 21 and 22. In another embodiment, the pressing portion 12, the pressing stopper 13, the abutting portion 14, the elastic member 15 and the spring sheet 16 are preferably an integrated structure and are made by an injection molding process. The structural strength of the pressing member 1 is increased by the integrated structure of the elastic member 15 and the pressing member 1, and the assembly process is simplified, which is conducive to improving the efficiency of mass production.

[0067] Please refer to Figures 7 to 9. In addition, the upper cover 2 is provided with a first magnet groove 21 for installing the first magnet 5. The first magnet groove 21 is provided with first pressure strips 22 on both sides in the first direction for limiting the movement of the bending portion 162 along the second direction (the bending portion 162 is subjected to the impact force of the protrusion 41 due to the mutual attraction between the first magnet 5 and the second magnet 6, and the bending portion 162 is forced to bend only outward through the first pressure strip 22). The first magnet groove 21 is provided with second pressure strips 23 on both sides in the third direction for limiting the movement of the elastic member 15 along the second direction. Preferably, the first pressure strip 22 and the second pressure strip 23 both extend along the first direction, and the first pressure strip 22 is connected to the first magnet groove 21, which can increase the structural strength of the first magnet groove 21.

[0068] In this embodiment, the upper cover 2 is further provided with two clamping strips 24 and four clamping claws 25. The clamping claws 25 are arranged around the upper cover 2, and the clamping claws 25 are located at both ends of the clamping strip 24 in the first direction. The lower cover 3 is provided with a clamping groove 33 adapted to the clamping strip 24, so that the upper cover 2 and the lower cover 3 are aligned. The lower cover 3 is provided with a buckle hole 34 that can be clamped with the clamping claws 25 to achieve clamping and fixing of the upper cover 2 and the lower cover 3. The lower cover 3 is provided with a baffle 35 that can limit the movement of the elastic member 15 along the third direction to improve the stability of the elastic member 15 during use.

[0069] It should be noted that a necking structure 45 is provided at the end of the protrusion 41 facing away from the base 4, and the first magnet slot 21 is provided with a flared portion 26 adapted to the necking structure 45. The stability of the magnetic attraction of the first magnet 5 and the second magnet 6 can be increased by the fitting of the necking structure 45 and the flared portion 26. At the same time, a colloid is provided between the first magnet 5 and the first magnet slot 21 and between the second magnet 6 and the second magnet slot 43 for fixing the first magnet 5 and the second magnet 6.

[0070] In addition, in this embodiment, the corners of the cover body and the base 4 are rounded, the shape is more rounded, more suitable for baby carriers, without edges and corners, and can reduce collision damage. At the same time, the cover body and the base 4 can be disassembled by pressing the pressing piece 1 with one hand, which is a more convenient and quicker way to use.

[0071] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0072] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0073] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the utility model.

Claims

1. A magnetic buckle for a shoulder strap, characterized in that: include: A cover body, comprising two pressing members (1), an upper cover (2) and a lower cover (3) which can form a receiving cavity after being snapped together, the cover body being provided with two through holes which are connected to the receiving cavity and extend along a first direction, the lower cover (3) being provided with a guide column (31) which is located inside the through hole and extends along the first direction, the pressing members (1) being provided with a guide groove (11) which is adapted to the guide column (31) so that the two pressing members (1) can move closer to or farther from each other, the lower cover (3) being provided with a through-type circular hole (32), and the upper cover (2) being provided with a first magnet (5) corresponding to the circular hole (32); The base (4) is provided with a protrusion (41) capable of being inserted into the circular hole (32), the protrusion (41) being provided with a slot (42) capable of being snapped into the pressing member (1) and a second magnet (6) capable of being magnetically attracted to the first magnet (5), so as to restrict the base (4) from being separated from the cover body.

2. The magnetic buckle for shoulder strap according to claim 1, characterized in that: The pressing member (1) further comprises a pressing portion (12) located outside the cover body, two pressing stops (13) connected to the pressing portion (12), two abutting portions (14) respectively connected to the two pressing stops (13), an elastic member (15) located between the two abutting portions (14) in the first direction and used for the pressing stop (13) to abut against the inner wall of the cover body, and a spring sheet (16) arranged on one of the pressing stops (13) and capable of being engaged with the engaging slot (42).

3. The magnetic buckle for shoulder strap according to claim 2, characterized in that: The spring sheet (16) comprises a support rod portion (161) and a bent portion (162); the support rod portion (161) comprises a first end connected to the abutting portion (14) and a second end facing away from the abutting portion (14); the bent portion (162) is connected to the second end and can be bent outwardly relative to the support rod portion (161); the second end is also provided with a column (163) spaced apart from the bent portion (162) for abutting against the bent portion (162) bent inwardly.

4. The magnetic buckle for shoulder strap according to claim 2, characterized in that: The elastic member (15) is specifically a compressed spring, and a clamping column (141) is provided on the abutment portion (14) to limit radial movement of the spring.

5. The magnetic buckle for shoulder strap according to claim 2, characterized in that: The pressing portion (12), the pressing stopper (13), the abutting portion (14), the elastic member (15) and the spring sheet (16) are an integrated structure.

6. The magnetic buckle for shoulder strap according to claim 3, characterized in that: The upper cover (2) is provided with a first magnet slot (21) for mounting the first magnet (5); the first magnet slot (21) is provided with first pressure strips (22) on both sides in the first direction for limiting the movement of the bending portion (162) along the second direction; the first magnet slot (21) is provided with second pressure strips (23) on both sides in the third direction for limiting the movement of the elastic member (15) along the second direction; the first direction, the second direction and the third direction are perpendicular to each other.

7. The magnetic buckle for shoulder strap according to claim 6, characterized in that: The upper cover (2) is further provided with a clamping strip (24) and a clamping claw (25), wherein the clamping claw (25) is located at two ends of the clamping strip (24) in the first direction, and the lower cover (3) is provided with a clamping groove (33) adapted to the clamping strip (24) and a buckle hole (34) adapted to the clamping claw (25). The lower cover (3) is further provided with a baffle (35) to limit the elastic member (15) from moving along the third direction.

8. The magnetic buckle for shoulder strap according to claim 6, characterized in that: The protrusion (41) is provided with a second magnet groove (43) for mounting the second magnet (6), the second magnet groove (43) being connected to a side of the base (4) facing away from the second magnet (6), and the base (4) is further provided with a sewing groove (44) for fixing itself.

9. The magnetic buckle for shoulder strap according to claim 8, characterized in that: A constricted structure (45) is provided at one end of the protrusion (41) facing away from the base (4); the first magnet slot (21) is provided with an expanded portion (26) adapted to fit the constricted structure (45); and colloid is provided between the first magnet (5) and the first magnet slot (21) and between the second magnet (6) and the second magnet slot (43).

10. The magnetic strap buckle according to any one of claims 1 to 9, characterized in that: Each corner of the cover and the base (4) is rounded.

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