Magnetic buckle

Abstract

The utility model provides a magnetic suction buckle which comprises a first magnetic suction piece and a second magnetic suction piece, one end of the first magnetic suction piece is provided with a first thread structure and a first magnet, the first thread structure is arranged on the peripheral side of the first magnet, and the other end of the first magnetic suction piece is used for being connected with the outside; a second threaded structure and a second magnet are arranged at one end of the second magnetic attraction piece, the second threaded structure is arranged on the peripheral side of the second magnet, and the other end of the second magnetic attraction piece is used for being connected with the outside; the first surface of the first magnet is exposed out of the first magnetic part, and the second surface of the second magnet is exposed out of the second magnetic part; the first threaded structure is in threaded connection with the second threaded structure, the first surface is attached to the second surface in a contact mode so that the first magnet and the second magnet can be magnetically connected, and the extending direction of the first threaded structure and the extending direction of the second threaded structure are parallel to the magnetic force direction of the first magnet and the magnetic force direction of the second magnet. And through threaded connection, the connection strength and the connection stability can be further improved, and locking is firmer.

Description

Technical Field

[0001] The utility model belongs to the technical field of buckle connection, and in particular relates to a magnetic buckle. Background Art

[0002] Magnetic buckles can realize detachable connection between items. However, magnetic buckles in related technologies usually include a first magnet and a second magnet, and the first magnet and the second magnet directly attract each other to realize the connection between items. When impacted by external force, the first magnet and the second magnet are easy to separate, causing the items to fall off easily, which does not meet actual needs. Utility Model Content

[0003] The technical purpose of the utility model is to provide a magnetic buckle, aiming to solve the technical problem that the first magnet and the second magnet in the magnetic buckle in the related art are easily separated.

[0004] To solve the above technical problems, the utility model is implemented as follows: a magnetic buckle comprises: a first magnetic member and a second magnetic member, wherein a first threaded structure and a first magnet are provided at one end of the first magnetic member, and the first threaded structure is provided on the peripheral side of the first magnet, and the other end of the first magnetic member is used to connect to the outside; a second threaded structure and a second magnet are provided at one end of the second magnetic member, and the second threaded structure is provided on the peripheral side of the second magnet, and the other end of the second magnetic member is used to connect to the outside; a first surface of the first magnet is exposed to the first magnetic member, and a second surface of the second magnet is exposed to the second magnetic member; the first threaded structure is threadedly connected to the second threaded structure, and the first surface contacts and fits against the second surface to magnetically connect the first magnet and the second magnet, and the extension direction of the first threaded structure and the second threaded structure is parallel to the magnetic force direction of the first magnet and the second magnet.

[0005] Furthermore, the first magnetic attraction member includes a first main body portion, the first main body portion is provided with a first groove opening toward the second magnetic attraction member, the first magnet is fixedly assembled in the first groove, and the first surface is exposed in the first groove; the second magnetic attraction member includes a second main body portion, the second main body portion is provided with a second groove opening toward the first magnetic attraction member, the second magnet is fixedly assembled in the second groove, and the second surface is exposed in the second groove; the first main body portion and the second main body portion are connected.

[0006] Furthermore, the first thread structure is provided on the outer peripheral side of the first main body, and the first magnet is flush with the first thread structure in the axial direction; the second thread structure is provided on the inner side wall of the second groove, and the end of the second thread structure close to the second magnet is flush with the second surface of the second magnet in the axial direction.

[0007] Further, the first thread structure includes n first teeth arranged at intervals along the circumferential direction on the first magnetic attraction member, and two adjacent first teeth form a first tooth groove; the second thread structure includes n second teeth arranged at intervals along the circumferential direction on the second magnetic attraction member; the second teeth and the first tooth groove correspond one-to-one, the second teeth can be movably connected to the first tooth groove, and, in the first axial and circumferential directions, the second teeth are clamped to the first tooth groove; and the second teeth can be separated from the first tooth groove along the second circumferential direction, and the first direction and the second direction are opposite directions.

[0008] Furthermore, the first tooth is a first sub-tooth, the first sub-tooth has an angular relationship with the axial direction, and two adjacent first sub-tooths form a first sub-tooth groove; along the axial direction, from one end of the first magnetic attraction component close to the second magnetic attraction component to the direction away from the second magnetic attraction component, the circumferential size of the first sub-tooth groove gradually decreases; the second tooth matches the first sub-tooth groove, and the second tooth abuts against the first sub-tooth groove.

[0009] Furthermore, the first sub-tooth has a first curved surface and a second curved surface arranged opposite to each other along the circumferential direction, the first curved surface has an angular relationship with the axial direction, and, in the same first sub-tooth, along the axial direction, from the end of the first magnetic attraction component away from the second magnetic attraction component to the direction close to the second magnetic attraction component, the second curved surface is inclined in the direction close to the first curved surface; the second tooth has a third curved surface and a fourth curved surface arranged opposite to each other along the circumferential direction; the second tooth is connected to the first sub-tooth groove, and the third curved surface abuts against the first curved surface, and the fourth curved surface abuts against the second curved surface.

[0010] Further, there are x first sub-teeth and y second sub-teeth among the n first teeth, wherein x+y=n, x=1, y>x; the first sub-teeth have a first curved surface and a second curved surface arranged opposite to each other in the circumferential direction, the second sub-teeth have a fifth curved surface and a sixth curved surface arranged opposite to each other in the circumferential direction, the first sub-teeth are located between two second sub-teeth, wherein the second curved surface is adjacent to the fifth curved surface of one of the second sub-teeth to form a first sub-tooth groove, and the first curved surface is adjacent to the sixth curved surface of another second sub-teeth to form a second sub-tooth groove; and a third sub-tooth groove is formed between two adjacent second sub-teeth; the first curved surface, the second curved surface, the fifth curved surface and the sixth curved surface all have an angular relationship with the axial direction; and along the axial direction, from the From one end of the first magnetic attraction member close to the second magnetic attraction member to the direction away from the second magnetic attraction member, the circumferential size of the first sub-tooth groove gradually decreases, and the circumferential size of the second sub-tooth groove is equal; and the third sub-tooth groove has the same size as the second sub-tooth groove; the second tooth has a third curved surface and a fourth curved surface arranged opposite to each other along the circumferential direction; the second tooth is connected to the first sub-tooth groove, and the third curved surface abuts the fifth curved surface, and the fourth curved surface abuts the second curved surface; the second tooth is connected to the second sub-tooth groove, and the third curved surface abuts the first curved surface, and the fourth curved surface partially abuts the sixth curved surface; the second tooth is connected to the third sub-tooth groove, and the third curved surface abuts the fifth curved surface, and the fourth curved surface partially abuts the sixth curved surface.

[0011] Further, there are x first sub-teeth and y second sub-teeth among the n first teeth, wherein x+y=n, x≥2, y≥x; the first sub-teeth have a first curved surface and a second curved surface arranged opposite to each other in the circumferential direction, and the second sub-teeth have a fifth curved surface and a sixth curved surface arranged opposite to each other in the circumferential direction, and when the first sub-teeth is located between two second sub-teeth, the second curved surface and the fifth curved surface of one of the adjacent second sub-teeth form a first sub-tooth groove; the first curved surface and the sixth curved surface of another adjacent second sub-teeth form a second sub-tooth groove; when the second sub-teeth are located between two first sub-teeth, the fifth curved surface and the second curved surface of one of the adjacent first sub-teeth form a first sub-tooth groove; the sixth curved surface and the first curved surface of another adjacent first sub-teeth form a second sub-tooth groove; and a third sub-tooth groove is formed between two adjacent second sub-teeth; a fourth sub-tooth groove is formed between two adjacent first sub-teeth; the first curved surface, the second curved surface, the fifth curved surface and the sixth curved surface are all aligned with the The axial direction has an angular relationship; and, along the axial direction, from the end of the first magnetic attraction member close to the second magnetic attraction member to the direction away from the second magnetic attraction member, the circumferential size of the first sub-tooth groove gradually decreases, and the circumferential size of the second sub-tooth groove is equal; and the third sub-tooth groove is the same size as the second sub-tooth groove; the fourth sub-tooth groove is the same size as the first sub-tooth groove; the second tooth has a third curved surface and a fourth curved surface arranged opposite to each other along the circumferential direction; the second tooth is connected to the first sub-tooth groove, and the third curved surface abuts the fifth curved surface, and the fourth curved surface abuts the second curved surface; the second tooth is connected to the second sub-tooth groove, and the third curved surface abuts the first curved surface, and the fourth curved surface partially abuts the sixth curved surface; the second tooth is connected to the third sub-tooth groove, and the third curved surface abuts the fifth curved surface, and the fourth curved surface partially abuts the sixth curved surface; the second tooth is connected to the fourth sub-tooth groove, and the third curved surface abuts the first curved surface, and the fourth curved surface abuts the second curved surface.

[0012] Furthermore, the first magnetic attraction component includes a first connecting part to connect to the outside, and the second magnetic attraction component includes a second connecting part to connect to the outside, and the first connecting part is provided with a snap ring, a buckle, a hook or an adhesive structure; and / or, the second connecting part is provided with a snap ring, a buckle, a hook or an adhesive structure.

[0013] Compared with the related art, the magnetic buckle in the utility model has the beneficial effect that the first magnetic member and the second magnetic member can not only be detachably assembled through the magnetic connection between the first magnet and the second magnet, but also the first threaded structure of the first magnetic member and the second threaded structure of the second magnetic member are threadedly connected, and the extension direction of the first threaded structure and the second threaded structure is parallel to the magnetic force direction between the first magnet and the second magnet. Therefore, through the threaded connection of the first threaded structure and the second threaded structure, the connection strength and connection stability of the first magnetic member and the second magnetic member can be further improved, so that the locking of the magnetic buckle is more secure. When used for hanging objects, etc., the objects are not easy to fall off. In addition, since the first magnetic member and the second magnetic member are connected by threaded connection and magnetic connection, it also has the effect of low difficulty in assembly and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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 described below are only some embodiments of the utility model. For those skilled in the art, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the structure of the magnetic buckle in the embodiment of the utility model;

[0016] Figure 2 This is an exploded view of the magnetic buckle in the embodiment of the utility model at a first viewing angle;

[0017] Figure 3 is an exploded view of the magnetic buckle in the embodiment of the utility model at a second viewing angle;

[0018] Figure 4 is a schematic structural diagram of the first magnetic attraction component in the embodiment of the utility model at a first viewing angle;

[0019] Figure 5 It is a schematic structural diagram of the first magnetic attraction component in the embodiment of the utility model at a second viewing angle.

[0020] In the accompanying drawings, the various reference numerals represent: 1. first magnetic member; 11. first threaded structure; 111. first sub-tooth; 1111. first curved surface; 1112. second curved surface; 112. second sub-tooth; 1121. fifth curved surface; 1122. sixth curved surface; 12. first groove; 13. first connecting portion; 2. second magnetic member; 21. second threaded structure; 211. second tooth; 2111. third curved surface; 2112. fourth curved surface; 22. second groove; 23. second connecting portion. DETAILED DESCRIPTION

[0021] The embodiments of the utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the utility model, and cannot be understood as limiting the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential", "radial" and the like indicate orientations or positional relationships based on the orientations 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] See also Figure 1-5 The utility model embodiment provides a magnetic buckle, including: a first magnetic component 1 and a second magnetic component 2, one end of the first magnetic component 1 is provided with a first threaded structure 11 and a first magnet, and the first threaded structure 11 is arranged on the periphery of the first magnet, and the other end of the first magnetic component 1 is used to connect to the outside; one end of the second magnetic component 2 is provided with a second threaded structure 21 and a second magnet, and the second threaded structure 21 is arranged on the periphery of the second magnet, and the other end of the second magnetic component 2 is used to connect to the outside; the first surface of the first magnet is exposed to the first magnetic component 1, and the second surface of the second magnet is exposed to the second magnetic component 2; the first threaded structure 11 is threadedly connected to the second threaded structure 21, and the first surface contacts and fits the second surface to magnetically connect the first magnet and the second magnet, and the extension direction of the first threaded structure 11 and the second threaded structure 21 is parallel to the magnetic force direction of the first magnet and the second magnet.

[0025] In the embodiment of the utility model, the first magnetic member 1 and the second magnetic member 2 can not only be detachably assembled through the magnetic connection between the first magnet and the second magnet, but also the first threaded structure 11 of the first magnetic member 1 and the second threaded structure 21 of the second magnetic member 2 are threadedly connected, and the extension direction of the first threaded structure 11 and the second threaded structure 21 is parallel to the magnetic force direction between the first magnet and the second magnet. Therefore, through the threaded connection of the first threaded structure 11 and the second threaded structure 21, the connection strength and connection stability of the first magnetic member 1 and the second magnetic member 2 can be further improved, so that the locking of the magnetic buckle is more secure. When used for hanging objects, etc., the objects are not easy to fall off. In addition, since the first magnetic member 1 and the second magnetic member 2 are connected by threaded connection and magnetic connection, the embodiment of the utility model also has the effect of low difficulty in assembly and disassembly.

[0026] Furthermore, the first magnetic attraction component 1 includes a first main body portion, the first main body portion is provided with a first groove 12 opening toward the second magnetic attraction component 2, the first magnet is fixedly assembled in the first groove 12, and the first surface is exposed in the first groove 12; the second magnetic attraction component 2 includes a second main body portion, the second main body portion is provided with a second groove 22 opening toward the first magnetic attraction component 1, the second magnet is fixedly assembled in the second groove 22, and the second surface is exposed in the second groove 22; the first main body portion and the second main body portion are connected.

[0027] In some specific embodiments, the first magnet extends axially, and the first magnet can be a columnar structure, and the top surface or bottom surface of the first magnet is the first surface, and similarly, the top surface or bottom surface of the second magnet is the second surface. The first groove 12 is connected to the second groove 22, so that the first surface of the first magnet exposed in the first groove 12 and the second surface of the second magnet exposed in the second groove 22 can be in contact and fit, so that the first magnet and the second magnet are magnetically attracted to each other, thereby realizing the magnetic connection between the first magnetic attraction member 1 and the second magnetic attraction member 2.

[0028] Furthermore, a first threaded structure 11 is provided on the outer peripheral side of the first main body, and the first magnet and the first threaded structure 11 are flush in the axial direction; a second threaded structure 21 is provided on the inner wall of the second groove 22, and an end of the second threaded structure 21 close to the second magnet is flush with the second surface of the second magnet in the axial direction.

[0029] In some specific embodiments, the first thread structure 11 extends axially, the first thread structure 11 is arranged on the outer peripheral side of the first main body, the first magnet is arranged on the inner side of the first main body, and the first magnet and the first thread structure 11 are flush along the axial direction, that is, the first thread structure 11 surrounds the outer surface of the first magnet. In the axial direction, the two ends of the first thread structure 11 are respectively aligned with the top surface and the bottom surface of the first magnet. The second groove 22 is a second-order through groove arranged in the axial direction, and the second groove 22 includes two sub-grooves, one of which is used to place the second magnet, and the inner side wall of the other sub-groove is provided with a second thread structure 21. In the axial direction, the second thread structure 21 includes an end close to the second magnet, and the end is aligned with the second surface of the second magnet. In this way, when the first thread structure 11 and the second thread structure 21 are just threadedly connected, the first surface of the first magnet can just contact the second surface of the second magnet, so that the two magnets can attract each other, and the direction of the magnetic force is parallel to the axial direction, so as to realize the threaded connection and magnetic connection of the first magnetic attraction member 1 and the second magnetic attraction member 2. When disassembly is required, the first thread structure 11 and the second thread structure 21 can be unscrewed with the help of external force to unlock the device, which is easy to operate.

[0030] Furthermore, the first threaded structure 11 includes n first teeth arranged at intervals along the circumferential direction on the first magnetic attraction component 1, and two adjacent first teeth form a first tooth groove; the second threaded structure 21 includes n second teeth 211 arranged at intervals along the circumferential direction on the second magnetic attraction component 2; the second teeth 211 correspond to the first tooth grooves one by one, the second teeth 211 can be movably connected to the first tooth grooves, and, in the first axial and circumferential directions, the second teeth 211 are clamped in the first tooth grooves; and the second teeth 211 can be separated from the first tooth groove along the second circumferential direction, and the first direction and the second direction are opposite directions.

[0031] In some specific embodiments, the first thread structure 11 is arranged around the outer circumference of the first main body and extends axially, and is composed of a plurality of first teeth; the second thread structure 21 is arranged around the inner side wall of the second groove 22 and extends axially, and is composed of a plurality of second teeth 211. Therefore, the second teeth 211 are screwed into the first tooth groove to achieve the threaded connection between the first thread structure 11 and the second thread structure 21. During the assembly process, the user aligns the second teeth 211 with the first tooth groove, and then relies on the mutual attraction of the first magnet and the second magnet to achieve the connection. This process does not require a large rotation operation, which simplifies the operation of the threaded connection.

[0032] In addition, illustratively, the second magnetic component 2 is located above the first magnetic component 1, and includes a clockwise direction and a counterclockwise direction in the circumferential direction. The clockwise direction of the second magnetic component 2 is taken as the first direction. When the second tooth 211 is connected to the first tooth groove, the second tooth 211 is engaged in the first tooth groove in the axial direction and the clockwise direction of the second magnetic component 2, so as to achieve a stable connection of the second tooth 211 in the first tooth groove, that is, to further achieve a stable connection between the first magnetic component 1 and the second magnetic component 2. When the two need to be separated, the second magnetic component 2 is rotated counterclockwise so that the second tooth 211 is separated from the first tooth groove along the clockwise direction of the second magnetic component 2. Easy to operate.

[0033] In some embodiments, the first tooth is a first sub-tooth 111, the first sub-tooth 111 has an angular relationship with the axial direction, and two adjacent first sub-tooths 111 form a first sub-tooth groove; along the axial direction, from the end of the first magnetic component 1 close to the second magnetic component 2 to the direction away from the second magnetic component 2, the circumferential size of the first sub-tooth groove gradually decreases; the second tooth 211 matches the first sub-tooth groove, and the second tooth 211 abuts against the first sub-tooth groove.

[0034] Specifically, the first threaded structure 11 is composed of a plurality of first sub-teeth 111, and the first sub-teeth 111 are obliquely arranged on the outer peripheral side of the first main body. In the direction from top to bottom, the circumferential size of the first sub-tooth groove gradually shrinks, and the circumferential size of the second teeth 211 gradually expands. The clockwise direction of the second magnetic component 2 is taken as the first direction. When the second teeth 211 are connected to the first sub-tooth groove, under the action of no external force, the second teeth 211 always abut against the groove wall of the first sub-tooth groove in the axial direction and the clockwise direction of the second magnetic component 2, thereby achieving a stable connection between the two. Only when the second magnetic component 2 is rotated counterclockwise can the second teeth 211 gradually move away from the first sub-tooth groove along the direction of the groove wall of the first sub-tooth groove. Since the first sub-tooth 111 has an angular relationship with the axial direction, the second tooth 211 also moves axially from bottom to top during the circumferential movement. Since the first sub-tooth groove gradually shrinks from top to bottom, that is, during the movement of the second tooth 211, the first sub-tooth groove becomes wider and wider relative to the second tooth 211. Finally, the second tooth 211 is no longer axially limited by the first sub-tooth groove, and the second tooth 211 is separated from the first sub-tooth groove.

[0035] Furthermore, the first sub-tooth 111 has a first curved surface 1111 and a second curved surface 1112 which are arranged opposite to each other along the circumferential direction, the first curved surface 1111 has an angular relationship with the axial direction, and, in the same first sub-tooth 111, along the axial direction, from the end of the first magnetic attraction component 1 away from the second magnetic attraction component 2 to the direction close to the second magnetic attraction component 2, the second curved surface 1112 is inclined in the direction close to the first curved surface 1111; the second tooth 211 has a third curved surface 2111 and a fourth curved surface 2112 which are arranged opposite to each other along the circumferential direction; the second tooth 211 is connected to the first sub-tooth groove, and the third curved surface 2111 abuts against the first curved surface 1111, and the fourth curved surface 2112 abuts against the second curved surface 1112.

[0036] In a specific embodiment, the inclination amplitude of the second curved surface 1112 of each first sub-tooth 111 is greater than the inclination amplitude of the first curved surface 1111, so that the first sub-tooth groove gradually shrinks from top to bottom. Each second tooth 211 is arranged in each first sub-tooth groove. When not affected by external force, the first curved surface 1111 and the third curved surface 2111 abut against each other, and the second curved surface 1112 and the fourth curved surface 2112 abut against each other, which has an axial and circumferential limiting effect. Only when the second magnetic attraction component 2 is rotated counterclockwise, the fourth curved surface 2112 will gradually move counterclockwise and upward along the second curved surface 1112 toward the second magnetic attraction component 2, and finally the second tooth 211 is separated from the first sub-tooth groove.

[0037] In some embodiments, there are x first sub-teeth 111 and y second sub-teeth 112 among the n first teeth, wherein x+y=n, x=1, y>x; the first sub-teeth 111 has a first curved surface 1111 and a second curved surface 1112 arranged opposite to each other in the circumferential direction, the second sub-teeth 112 has a fifth curved surface 1121 and a sixth curved surface 1122 arranged opposite to each other in the circumferential direction, the first sub-teeth 111 is located between two second sub-teeth 112, wherein the second curved surface 1112 is adjacent to the fifth curved surface 1121 of one of the second sub-teeth 112 to form a first sub-tooth groove, and the first curved surface 1111 is adjacent to the sixth curved surface 1122 of another second sub-teeth 112 to form a second sub-tooth groove; and a third sub-tooth groove is formed between two adjacent second sub-teeth 112; the first curved surface 1111, the second curved surface 1112, the fifth curved surface 1121 and the sixth curved surface 1122 all have an angle with the axial direction. degree relationship; and, along the axial direction, from the end of the first magnetic attraction member 1 close to the second magnetic attraction member 2 to the direction away from the second magnetic attraction member 2, the circumferential size of the first sub-tooth groove gradually decreases, and the circumferential size of the second sub-tooth groove is equal; and the third sub-tooth groove has the same size as the second sub-tooth groove; the second tooth 211 has a third curved surface 2111 and a fourth curved surface 2112 arranged opposite to each other along the circumferential direction; the second tooth 211 is connected to the first sub-tooth groove, and the third curved surface 2111 abuts against The fifth curved surface 1121 and the fourth curved surface 2112 abut against the second curved surface 1112; the second tooth 211 is connected to the second sub-tooth groove, and the third curved surface 2111 abuts against the first curved surface 1111, and the fourth curved surface 2112 partially abuts against the sixth curved surface 1122; the second tooth 211 is connected to the third sub-tooth groove, and the third curved surface 2111 abuts against the fifth curved surface 1121, and the fourth curved surface 2112 partially abuts against the sixth curved surface 1122.

[0038] Specifically, compared with the previous embodiment, in this embodiment, there is only one first sub-tooth 111, and the rest are second sub-tooths 112. A fifth curved surface 1121 in the second sub-tooth 112 is the same as the first curved surface 1111 of the first sub-tooth 111, so that the first curved surface 1111 and the fifth curved surface 1121 are matched with the third curved surface 2111 of the second tooth 211. Another curved surface, the sixth curved surface 1122 of the second sub-tooth 112 is adaptively arranged according to the fifth curved surface 1121, so that the circumferential dimensions of the second sub-tooth grooves along the axial direction are the same, and the circumferential dimensions of the third sub-tooth grooves are the same as those of the second sub-tooth grooves. When no external force is applied, the third curved surface 2111 abuts against the first curved surface 1111 or the fifth curved surface 1121, and the fourth curved surface 2112 abuts against the second curved surface 1112 or partially abuts against the sixth curved surface 1122. Since one of the second teeth 211 can be completely engaged in the first sub-tooth groove, even if the other second teeth 211 and the second sub-tooth groove or the third sub-tooth groove are not completely engaged, the limiting can be achieved. Only when the second magnetic attraction member 2 is rotated counterclockwise, one of the fourth curved surfaces 2112 will gradually move counterclockwise and upward along the second curved surface 1112 toward the second magnetic attraction member 2, and the remaining fourth curved surfaces 2112 will also move synchronously, and finally the second tooth 211 will separate from the first sub-tooth groove.

[0039] It is understandable that during the rotation process, due to the existence of magnetic attraction, a relatively large force is required for the rotation, and this embodiment has only one first sub-tooth groove, so the two can be separated more conveniently.

[0040] In some embodiments, there are x first sub-teeth 111 and y second sub-teeth 112 among the n first teeth, wherein x+y=n, x≥2, y≥x; the first sub-teeth 111 have a first curved surface 1111 and a second curved surface 1112 arranged opposite to each other in the circumferential direction, and the second sub-teeth 112 have a fifth curved surface 1121 and a sixth curved surface 1122 arranged opposite to each other in the circumferential direction, and when the first sub-teeth 111 is located between two second sub-teeth 112, the second curved surface 1112 and the fifth curved surface 1121 of one of the adjacent second sub-teeth 112 form a first sub-tooth groove; the first curved surface 1111 The sixth curved surface 1122 of another adjacent second sub-tooth 112 forms a second sub-tooth groove; when the second sub-tooth 112 is located between two first sub-tooths 111, the fifth curved surface 1121 forms a first sub-tooth groove with the second curved surface 1112 of one of the adjacent first sub-tooths 111; the sixth curved surface 1122 forms a second sub-tooth groove with the first curved surface 1111 of another adjacent first sub-tooth 111; and a third sub-tooth groove is formed between two adjacent second sub-tooths 112; a fourth sub-tooth groove is formed between two adjacent first sub-tooths 111; the first curved surface 1111 and the second curved surface 1111 form a first sub-tooth groove. 2. The fifth curved surface 1121 and the sixth curved surface 1122 are both at an angle to the axial direction; and, along the axial direction, from the end of the first magnetic attraction member 1 close to the second magnetic attraction member 2 to the direction away from the second magnetic attraction member 2, the circumferential size of the first sub-tooth groove gradually decreases, and the circumferential size of the second sub-tooth groove is equal; and the third sub-tooth groove has the same size as the second sub-tooth groove; the fourth sub-tooth groove has the same size as the first sub-tooth groove; the second tooth 211 has a third curved surface 2111 and a fourth curved surface 2112 arranged opposite to each other along the circumferential direction; the second tooth 211 is connected to the first sub-tooth groove, and the third curved surface 2111 abuts against the fifth curved surface 1121 , the fourth curved surface 2112 abuts against the second curved surface 1112; the second tooth 211 is connected to the second sub-tooth groove, and the third curved surface 2111 abuts against the first curved surface 1111, and the fourth curved surface 2112 partially abuts against the sixth curved surface 1122; the second tooth 211 is connected to the third sub-tooth groove, and the third curved surface 2111 abuts against the fifth curved surface 1121, and the fourth curved surface 2112 partially abuts against the sixth curved surface 1122; the second tooth 211 is connected to the fourth sub-tooth groove, and the third curved surface 2111 abuts against the first curved surface 1111, and the fourth curved surface 2112 abuts against the second curved surface 1112.

[0041] Specifically, compared with the aforementioned embodiment, in this embodiment, part is the first sub-tooth 111, and part is the second sub-tooth 112. Similarly, when not affected by external force, the third curved surface 2111 abuts against the first curved surface 1111 or the fifth curved surface 1121, and the fourth curved surface 2112 abuts against the second curved surface 1112 or partially abuts against the sixth curved surface 1122, so that limiting can be achieved. Only when the second magnetic attraction component 2 is rotated counterclockwise, part of the fourth curved surface 2112 will gradually move counterclockwise and upward along the second curved surface 1112 toward the second magnetic attraction component 2, and the rest of the fourth curved surface 2112 also moves synchronously, and finally the second tooth 211 is separated from the first sub-tooth groove.

[0042] It can be understood that the embodiment of the utility model does not specifically limit the number and arrangement of the first sub-teeth 111 and the second sub-teeth 112, and there can be a variety of combinations, such as the first sub-teeth 111 and the second sub-teeth 112 are arranged alternately, or a first sub-teeth 111 is arranged in the middle of every four second sub-teeth 112, and so on.

[0043] Furthermore, the first magnetic component 1 includes a first connecting part 13 to connect to the outside, and the second magnetic component 2 includes a second connecting part 23 to connect to the outside, and the first connecting part 13 is provided with a snap ring, a buckle, a hook or an adhesive structure; and / or, the second connecting part 23 is provided with a snap ring, a buckle, a hook or an adhesive structure.

[0044] Specifically, one end of the first magnetic member 1 is the first main body and the other end is the first connecting portion 13, and one end of the second magnetic member 2 is the second main body and the other end is the second connecting portion 23. The first connecting portion 13 and the second connecting portion 23 are both used to connect to the outside, and the first connecting portion 13 can be a clasp, a buckle, a hook or an adhesive structure, etc., and the second connecting portion 23 can be a clasp, a buckle, a hook or an adhesive structure, etc. It can be understood that in actual applications, the specific structures of the first connecting portion 13 and the second connecting portion 23 can be set according to actual needs.

[0045] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0046] The above is a description of the technical solution provided by the utility model. For technicians in this field, according to the ideas of the embodiments of the utility model, there will be changes in the specific implementation methods and application scopes. In summary, the content of this specification should not be understood as a limitation on the utility model.

Claims

1. A magnetic buckle, characterized in that: include: a first magnetic attraction member and a second magnetic attraction member, One end of the first magnetic attraction member is provided with a first thread structure and a first magnet, and the first thread structure is provided around the first magnet, and the other end of the first magnetic attraction member is used for connecting to the outside; A second thread structure and a second magnet are disposed at one end of the second magnetic attraction member, and the second thread structure is disposed around the second magnet, and the other end of the second magnetic attraction member is used for connecting to the outside; The first surface of the first magnet is exposed to the first magnetic attraction member, and the second surface of the second magnet is exposed to the second magnetic attraction member; The first thread structure is threadedly connected to the second thread structure, and the first surface contacts and fits the second surface to magnetically connect the first magnet and the second magnet, and the extension direction of the first thread structure and the second thread structure is parallel to the magnetic force direction of the first magnet and the second magnet.

2. The magnetic buckle according to claim 1, characterized in that: The first magnetic attraction member includes a first main body portion, the first main body portion is provided with a first groove opening toward the second magnetic attraction member, the first magnet is fixedly assembled in the first groove, and the first surface is exposed in the first groove; the second magnetic attraction member includes a second main body portion, the second main body portion is provided with a second groove opening toward the first magnetic attraction member, the second magnet is fixedly assembled in the second groove, and the second surface is exposed in the second groove; the first main body portion and the second main body portion are connected.

3. The magnetic buckle according to claim 2, characterized in that: The first thread structure is provided on the outer peripheral side of the first main body, and the first magnet is flush with the first thread structure in the axial direction; the second thread structure is provided on the inner side wall of the second groove, and the end of the second thread structure close to the second magnet is flush with the second surface of the second magnet in the axial direction.

4. The magnetic buckle according to claim 1, characterized in that: The first thread structure includes n first teeth arranged at intervals along the circumferential direction on the first magnetic attraction member, and two adjacent first teeth form a first tooth groove; the second thread structure includes n second teeth arranged at intervals along the circumferential direction on the second magnetic attraction member; the second teeth correspond to the first tooth groove one by one, the second teeth can be movably connected to the first tooth groove, and in the first axial and circumferential directions, the second teeth are clamped to the first tooth groove; Furthermore, the second tooth can be separated from the first tooth groove along a second circumferential direction, and the first direction and the second direction are opposite directions.

5. The magnetic buckle according to claim 4, characterized in that: The first tooth is a first sub-tooth, and the first sub-tooth has an angular relationship with the axial direction. Two adjacent first sub-tooths form a first sub-tooth groove; along the axial direction, from one end of the first magnetic attraction component close to the second magnetic attraction component to the direction away from the second magnetic attraction component, the circumferential size of the first sub-tooth groove gradually decreases; the second tooth matches the first sub-tooth groove, and the second tooth abuts against the first sub-tooth groove.

6. The magnetic buckle according to claim 5, characterized in that: The first sub-tooth has a first curved surface and a second curved surface arranged opposite to each other in the circumferential direction, the first curved surface has an angle relationship with the axial direction, and in the same first sub-tooth, along the axial direction, from the end of the first magnetic attraction member away from the second magnetic attraction member to the direction close to the second magnetic attraction member, the second curved surface is inclined in a direction close to the first curved surface; The second tooth has a third curved surface and a fourth curved surface which are arranged opposite to each other in the circumferential direction; the second tooth is connected to the first sub-tooth groove, and the third curved surface abuts against the first curved surface, and the fourth curved surface abuts against the second curved surface.

7. The magnetic buckle according to claim 4, characterized in that: The n first teeth have x first sub-teeth and y second sub-teeth, wherein x+y=n, x=1, y>x; The first sub-tooth has a first curved surface and a second curved surface arranged opposite to each other in the circumferential direction, and the second sub-tooth has a fifth curved surface and a sixth curved surface arranged opposite to each other in the circumferential direction. The first sub-tooth is located between two second sub-tooths, wherein the second curved surface is adjacent to the fifth curved surface of one of the second sub-tooths to form a first sub-tooth groove, and the first curved surface is adjacent to the sixth curved surface of another second sub-tooth to form a second sub-tooth groove; and a third sub-tooth groove is formed between two adjacent second sub-tooths; The first curved surface, the second curved surface, the fifth curved surface and the sixth curved surface all have an angle relationship with the axial direction; and along the axial direction, from the end of the first magnetic attraction member close to the second magnetic attraction member to the direction away from the second magnetic attraction member, the circumferential size of the first sub-tooth groove gradually decreases, and the circumferential size of the second sub-tooth groove is equal; and the third sub-tooth groove has the same size as the second sub-tooth groove; The second tooth has a third curved surface and a fourth curved surface arranged opposite to each other in the circumferential direction; the second tooth is connected to the first sub-tooth groove, and the third curved surface abuts the fifth curved surface, and the fourth curved surface abuts the second curved surface; the second tooth is connected to the second sub-tooth groove, and the third curved surface abuts the first curved surface, and the fourth curved surface partially abuts the sixth curved surface; the second tooth is connected to the third sub-tooth groove, and the third curved surface abuts the fifth curved surface, and the fourth curved surface partially abuts the sixth curved surface.

8. The magnetic buckle according to claim 4, characterized in that: The n first teeth have x first sub-teeth and y second sub-teeth, wherein x+y=n, x≥2, y≥x; The first sub-tooth has a first curved surface and a second curved surface arranged opposite to each other in the circumferential direction, and the second sub-tooth has a fifth curved surface and a sixth curved surface arranged opposite to each other in the circumferential direction. When the first sub-tooth is located between two second sub-tooths, the second curved surface and the fifth curved surface of one of the adjacent second sub-tooths form a first sub-tooth groove; the first curved surface and the sixth curved surface of another adjacent second sub-tooth form a second sub-tooth groove; When the second sub-tooth is located between two first sub-tooths, the fifth curved surface and the second curved surface of one of the adjacent first sub-tooths form a first sub-tooth groove; the sixth curved surface and the first curved surface of another adjacent first sub-tooth form a second sub-tooth groove; Furthermore, a third sub-tooth groove is formed between two adjacent second sub-teeth; a fourth sub-tooth groove is formed between two adjacent first sub-teeth; The first curved surface, the second curved surface, the fifth curved surface and the sixth curved surface all have an angle relationship with the axial direction; and along the axial direction, from the end of the first magnetic attraction member close to the second magnetic attraction member to the direction away from the second magnetic attraction member, the circumferential size of the first sub-tooth groove gradually decreases, and the circumferential size of the second sub-tooth groove is equal; and the third sub-tooth groove has the same size as the second sub-tooth groove; and the fourth sub-tooth groove has the same size as the first sub-tooth groove; The second tooth has a third curved surface and a fourth curved surface arranged opposite to each other in the circumferential direction; the second tooth is connected to the first sub-tooth groove, and the third curved surface abuts the fifth curved surface, and the fourth curved surface abuts the second curved surface; the second tooth is connected to the second sub-tooth groove, and the third curved surface abuts the first curved surface, and the fourth curved surface partially abuts the sixth curved surface; the second tooth is connected to the third sub-tooth groove, and the third curved surface abuts the fifth curved surface, and the fourth curved surface partially abuts the sixth curved surface; the second tooth is connected to the fourth sub-tooth groove, and the third curved surface abuts the first curved surface, and the fourth curved surface abuts the second curved surface.

9. The magnetic buckle according to claim 1, characterized in that: The first magnetic attraction component includes a first connecting part to connect to the outside, and the second magnetic attraction component includes a second connecting part to connect to the outside, and the first connecting part is provided with a snap ring, a buckle, a hook or an adhesive structure; and / or, the second connecting part is provided with a snap ring, a buckle, a hook or an adhesive structure.

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