Rotary fastener and clothes

Abstract

The rotary fastener comprises a bottom buckle, a protruding block is arranged on the bottom buckle, and a clamping groove is formed in the side wall of the protruding block; a lower shell, facing the bottom buckle, of the shell is provided with an elastic piece and a groove hole, the protruding block is inserted into the shell through the groove hole, one side face of the elastic piece faces the interior of the shell, and the other side face of the elastic piece faces the bottom buckle; the elastic piece comprises a clamping arm which is located in the shell and can be clamped with the clamping groove and an elastic arm which is connected with the clamping arm, and the elastic arm is used for providing elastic force for the clamping arm to move towards the clamping groove; the shifting part is rotationally arranged on the shell, an extrusion column extending into the shell is arranged on the shifting part, the extrusion column corresponds to the elastic piece in position, when the extrusion column rotates in the first direction, the extrusion column is used for extruding the clamping arm to be separated from the clamping groove and is used for extruding the elastic piece to move towards the bottom buckle, and the elastic piece abuts against the bottom buckle at least after the clamping arm is separated from the clamping groove. Rapid buckling can be achieved, rapid separation is achieved through rotation, operation is easy and rapid, and the structure is more stable and reliable.

Description

Technical Field

[0001] The present application relates to the technical field of fasteners, and in particular to a rotating fastener and clothing. Background Art

[0002] A strap buckle is a device used to connect and fix straps or other adjustable straps. It is usually used on backpacks, clothing, bags and other items to adjust and fix the length of the straps. The strap buckle can be quickly assembled and removed, which is crucial. There are many types of buckles, including knob buckles, side buckles, and magnetic buckles. Most straps use traditional buckle accessories. Although they have good strength, they are cumbersome to operate and affect the appearance, and the user experience is not good.

[0003] Therefore, in response to the above technical problems, how to provide a fastener that can achieve quick disengagement and is more convenient and labor-saving to use is a technical problem that needs to be solved by those skilled in the art. Summary of the invention

[0004] The purpose of the present application is to provide a rotating fastener, which can be quickly engaged and quickly disengaged by rotation, is simple and quick to operate, and has a more stable and reliable structure.

[0005] To achieve the above objectives, the present application provides a rotating fastener, comprising:

[0006] A bottom buckle, wherein the bottom buckle is provided with a protrusion, and a side wall of the protrusion is provided with a slot;

[0007] A shell, wherein a spring sheet and a slot are provided on the lower shell of the shell facing the bottom buckle, the protrusion is inserted into the shell through the slot, one side of the spring sheet faces the inside of the shell, and the other side faces the bottom buckle;

[0008] An elastic member, comprising a clamping arm located in the housing and capable of clamping with the clamping slot, and an elastic arm connected to the clamping arm, wherein the elastic arm is used to provide elastic force for the clamping arm to move toward the clamping slot;

[0009] The toggle portion is rotatably disposed on the shell, and the toggle portion is provided with a squeezing column extending into the shell, the squeezing column corresponds to the position of the spring sheet, and when the squeezing column rotates along a first direction, the squeezing column is used to squeeze the clamping arm out of the clamping slot, and to squeeze the spring sheet to move toward the bottom buckle, and at least after the clamping arm is out of the clamping slot, the spring sheet abuts against the bottom buckle.

[0010] Preferably, there are two clamping arms, which are symmetrically distributed on both sides of the slot, and the elastic arm is located on both sides of the clamping arm. Both ends of the elastic arm are respectively connected to the two clamping arms to provide elastic force for the two clamping arms to move toward each other.

[0011] Preferably, the clamping arm includes a clamping protrusion engaged with the clamping slot and an inclined wedge block arranged on the clamping protrusion, and the squeezing column includes a first squeezing column cooperating with the inclined wedge block, and when rotating along the first direction, the first squeezing column squeezes the inclined wedge block to make the two clamping arms move in opposite directions.

[0012] Preferably, the squeezing column also includes a second squeezing column cooperating with the spring sheet, and the spring sheet is provided with an inclined surface on the side facing the shell. When rotating along the first direction, the second squeezing column interferes with the spring sheet at the inclined surface to squeeze the inclined surface so that the spring sheet moves toward the bottom buckle.

[0013] Preferably, the locking groove is an annular groove arranged on the outer periphery of the protrusion, and the locking protrusion is an arc-shaped structure that cooperates with the annular groove.

[0014] Preferably, the shell body further comprises an upper shell, the upper shell is provided with a latch, the lower shell is provided with a socket matched with the latch, the upper shell and the lower shell are plugged and fixed, and the toggle portion is rotatably arranged on the outer periphery of the upper shell.

[0015] Preferably, a center hole is provided in the middle of the toggle portion, an arc hole corresponding to the latch is provided on the periphery of the center hole, the latch passes through the arc hole and is inserted into the socket, and the toggle portion is rotatably arranged within the arc range of the arc hole to drive the extrusion column to rotate.

[0016] Preferably, a first magnet is provided inside the protrusion, a limiting ring corresponding to the position of the slot hole is provided on the lower shell, a second magnet is provided inside the limiting ring, the limiting ring is inserted into the center hole, a hollow area is provided between the lower shell and the limiting ring, and the clamping arm is plugged into the corresponding clamping slot through the hollow area.

[0017] Preferably, the lower shell is further provided with a clamping arm groove, the clamping arm is slidably disposed in the clamping arm groove, and moves toward or away from the slot hole under the limiting action of the clamping arm groove.

[0018] Preferably, a spring groove is further provided on the lower shell, a return spring is provided in the spring groove, and a return block is provided on the toggle part, which extends into the spring groove and abuts against the end of the return spring. When rotating along the first direction, the return block compresses the return spring, and after the external force of the toggle part disappears, the return spring provides a return elastic force for the toggle part through the return block, so that the extrusion column rotates in a direction opposite to the first direction.

[0019] A kind of clothing comprises the rotating fastener mentioned above.

[0020] Compared with the prior art, the technical solution provided by this application has at least the following beneficial effects:

[0021] The bottom buckle of the present application is plugged into the slot hole of the shell body through the protrusion, and the elastic member and the slot are quickly connected under the cooperation of the clamping arm and the spring arm, thereby realizing quick buckling; the squeezing column is driven to rotate by the rotation of the toggle part, so that the squeezing column can squeeze the clamping arm on the one hand to disengage the clamping arm from the slot, and squeeze the spring sheet to move toward the bottom buckle on the other hand, and after the clamping arm is completely disengaged from the slot, the squeezing column is squeezed by the inclined surface on the spring sheet, thereby changing the movement direction of the spring sheet through the interference between the squeezing column and the inclined surface, so that the spring sheet can abut against the end face of the bottom buckle, and under the continuous rotation of the squeezing column, the spring sheet can further squeeze the bottom buckle, so that the bottom buckle and the protrusion on the bottom buckle are disengaged from the slot, thereby realizing quick disengagement. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present application 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 embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0023] FIG1 is a schematic diagram of a three-dimensional structure of a rotary fastener provided in an embodiment of the present application;

[0024] FIG2 is a schematic diagram of a three-dimensional structure of a rotary fastener provided in an embodiment of the present application from another perspective;

[0025] FIG3 is an exploded view of a rotary fastener provided in an embodiment of the present application;

[0026] FIG4 is a schematic diagram of the structure of the toggle part provided in an embodiment of the present application;

[0027] FIG5 is a schematic diagram of the structure of an elastic member provided in an embodiment of the present application;

[0028] FIG6 is a schematic diagram of the lower shell structure provided in an embodiment of the present application;

[0029] FIG7 is a schematic diagram of the assembly structure of the toggle portion and the lower shell provided in an embodiment of the present application;

[0030] FIG8 is a schematic diagram of the assembly structure of the elastic member and the lower shell provided in an embodiment of the present application;

[0031] FIG9 is a schematic diagram of the internal structure of the rotary fastener provided in an embodiment of the present application when fastened;

[0032] FIG. 10 is a schematic diagram of the internal structure of the rotary fastener provided in an embodiment of the present application after being disengaged.

[0033] In the figure:

[0034] 1- bottom buckle; 11- bump; 12- slot;

[0035] 2-shell; 21-upper shell; 22-lower shell; 221-slot; 222-spring; 223-socket; 224-arm slot; 225-spring slot; 226-limiting ring; 227-hollow area; 228-inclined surface;

[0036] 3-actuating part; 31-arc hole; 32-center hole; 33-second extrusion column; 34-reset block; 35-first extrusion column;

[0037] 4-Joint piece;

[0038] 5-elastic member; 51-elastic arm; 52-clamp arm; 53-oblique wedge block;

[0039] 6-Return spring. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0041] It should be noted that in this embodiment, the directions or positional relationships indicated by "upper", "lower", "front", "back", etc. are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present application. In addition, "first", "second", "third", and "fourth" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0042] In order to enable those skilled in the art to better understand the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0043] Please refer to Figure 1. In this embodiment, a rotating fastener is provided. The rotating fastener generally includes a bottom buckle 1 (sub-buckle) and a mother buckle. The bottom buckle 1 is provided with a protrusion 11, and the mother buckle is provided with a slot 221. The protrusion 11 cooperates with the slot 221 to achieve the engagement and disengagement of the rotating fastener.

[0044] A clamping groove 12 is disposed on the side wall of the protrusion 11 , and an inclined wedge surface is disposed at the end of the protrusion 11 . The inclined wedge surface is similar to the chamfer of a workpiece. For details, the arrangement method may be referred to FIG. 1 .

[0045] The female buckle includes a housing 2 as a main bearing structure, see Figures 1 and 3, the housing 2 includes an upper shell 21 and a lower shell 22, and the upper shell 21 and the lower shell 22 are covered to form an internal hollow female buckle structure. The slot 221 is provided on the housing 2, specifically on the lower shell 22, and the protrusion 11 can be inserted into the housing 2 through the slot 221, see Figure 2.

[0046] A spring sheet 222 is provided on the lower shell 22 of the shell 2 facing the bottom buckle 1 . The spring sheet 222 may also be an elastic metal spring sheet. One side of the spring sheet 222 faces the inside of the shell 2 , and the other side faces the bottom buckle 1 .

[0047] The female buckle also includes an elastic member 5 disposed inside the housing 2, and the elastic member 5 includes an arm 52 engaged with the slot 12 and an elastic arm 51 connected to the arm 52; it should be noted that the precondition for the engagement of the arm 52 with the slot 12 is that the projection 11 extends into the housing 2, and the slot 12 can also extend into the housing 2, so that the elastic force of the elastic arm 51 drives the arm 52 to engage with the slot 12 quickly. At the same time, since the end of the projection 11 is provided with an inclined wedge surface, the elastic force of the elastic arm 51 can be easily overcome by the inclined wedge surface to push the arm 52 open, so that the projection 11 and the slot 12 are assembled in place, and after the slot 12 is assembled in place, the arm 52 can be engaged with the slot 12 quickly under the action of the elastic arm 51. After the arm 52 is engaged with the slot 12, the axial limit of the projection 11 and the housing 2 can be achieved, so that the bottom buckle 1 and the female buckle reach a buckled state.

[0048] The female buckle can be fixedly arranged on the coupling member 4, and the shoulder strap or other connecting strap can be connected to the female buckle through the through hole on the coupling member 4, thereby realizing the quick connection of the shoulder strap.

[0049] The bottom buckle 1 and the female buckle of the present application also need to be disengaged, that is, the slot 12 of the protrusion 11 is disengaged from the locking arm 52. In some embodiments, the female buckle also includes a toggle portion 3, which is rotatably arranged on the shell 2. The toggle portion 3 is provided with a squeezing column extending into the shell 2, one of which corresponds to the position of the spring piece 222, and the other corresponds to the position of the locking arm 52. The toggle portion 3 is rotated in the first direction to drive the squeezing column to rotate along the first direction, so that the squeezing column can squeeze the locking arm 52 on the one hand, so that the locking arm 52 overcomes the elastic force of the elastic arm 51 and disengages from the slot 12, and on the other hand, it can squeeze the spring piece 222 to move toward the bottom buckle 1, and at least after the locking arm 52 is disengaged from the slot 12, the spring piece 222 abuts against the bottom buckle 1, so that the bottom buckle 1 is squeezed by the spring piece 222 to disengage from the shell 2.

[0050] In summary, the bottom buckle 1 of the present application is plugged into the slot 221 of the shell 2 through the protrusion 11, and under the cooperation of the clamping arm 52 and the elastic arm 51, the elastic member 5 is quickly clamped with the clamping slot 12, thereby realizing quick buckling; the squeezing column is driven to move by the rotation of the toggle part 3, so that the squeezing column can squeeze the clamping arm 52 on the one hand, so that the clamping arm 52 and the clamping slot 12 are disengaged, and on the other hand, the squeezing spring 222 moves toward the bottom buckle 1, and after the clamping arm 52 is completely disengaged from the clamping slot 12, the squeezing column is squeezed by the inclined surface 228 on the spring piece 222, so that the movement direction of the spring piece 222 is changed through the interference between the squeezing column and the inclined surface 228, so that the spring piece 222 can abut against the end face of the bottom buckle 1, and under the continuous rotation of the squeezing column, the spring piece 222 can further squeeze the bottom buckle 1, so that the bottom buckle 1 and the protrusion 11 on the bottom buckle 1 are disengaged from the slot 221, thereby realizing quick disengagement.

[0051] Please refer to Figure 5. The number of the clamping arms 52 of the present application is two, and they are symmetrically distributed on both sides of the slot 221. Similarly, the number of the elastic arms 51 is also two. The two elastic arms 51 are located on both sides of the clamping arm 52, and the two ends of the elastic arm 51 are respectively connected to the two clamping arms 52. The elastic arm 51 is initially in a stretched state, so it can provide elastic force for the two clamping arms 52 to move toward each other, and on the basis that the two elastic arms 51 are symmetrically arranged on both sides of the slot 221, the movement of the two clamping arms 52 toward each other is the movement facing the slot 12.

[0052] The clamping arm 52 includes a clamping protrusion clamped with the clamping slot 12 and an inclined wedge block 53 provided on the clamping protrusion, and the squeezing column includes a first squeezing column 35 matched with the inclined wedge block 53. When the squeezing column rotates along the first direction, the first squeezing column 35 can squeeze the inclined wedge surface of the inclined wedge block 53, so that the two clamping arms 52 move in opposite directions. It can be predicted that since there are two clamping arms 52, the number of the corresponding first squeezing columns 35 should also be two, and the two first squeezing columns 35 squeeze the inclined wedge surfaces of the two inclined wedge blocks 53 respectively, so as to realize the opposite movement of the two clamping arms 52.

[0053] The squeezing column also includes a second squeezing column 33 that cooperates with the spring sheet 222. The spring sheet 222 is provided with an inclined surface 228 on the side facing the shell 2. When the toggle portion 3 rotates along the first direction, the second squeezing column 33 is driven to rotate. The second squeezing column 33 interferes with the inclined surface 228 of the spring sheet 222, thereby continuously squeezing the inclined surface 228, and on the basis of the fixed axial position of the second squeezing column 33, the spring sheet 222 is squeezed to move toward the bottom buckle 1.

[0054] The locking groove 12 is an annular groove arranged on the outer periphery of the protrusion 11, and the locking protrusion is an arc-shaped structure matched with the annular groove. It should be pointed out that the purpose of the present application is to achieve the purpose of engagement and disengagement by rotation, so the movement mode of the toggle part 3 is rotational movement. When the toggle part 3 rotates along the first direction, the squeeze column will also rotate with the rotation axis of the toggle part 3 as the rotation axis. Therefore, the shape of the spring piece 222 should correspond to the rotation trajectory of the second squeeze column 33, so that the second squeeze column can interfere with the inclined surface 228 at a preset position.

[0055] Please refer to Figure 3, the shell 2 also includes an upper shell 21, and a plurality of pins are provided on the upper shell 21. The corresponding lower shell is provided with a socket 223 that cooperates with the pins. The upper shell 21 and the lower shell 22 are fixed by plugging, and the toggle part 3 is rotatably arranged on the outer periphery of the upper shell 21, so that an internal hollow female buckle structure is formed under the cooperation of the upper shell 21, the lower shell 22 and the toggle part 3.

[0056] Please refer to Figures 4 and 7. A central hole 32 is provided in the middle of the toggle part 3. The outer periphery of the central hole 32 is provided with an arc hole 31 corresponding to the plug pin. The plug pin passes through the arc hole 31 and is inserted into the socket 223. Since the upper shell 21 and the lower shell 22 are relatively fixed, when the toggle part 3 rotates, under the limiting effect of the plug wire and the arc hole 31, the toggle part 3 can only rotate within the arc range of the arc hole 31, thereby driving the squeeze column to rotate. At the same time, the plug pin can also limit the radial position of the toggle part 3 to ensure the rotation stability of the toggle part 3.

[0057] In the housing 2 , the toggle portion 3 and the elastic member 5 are stacked from the upper shell 21 to the lower shell 22 , and the extrusion column and the elastic member 5 are located in the same layer.

[0058] In addition, the toggle portion 3 needs to be driven to rotate by an external force, such as manual rotation, etc., which will not be described in detail here.

[0059] It should be noted that there may be many ways to set the toggle part 3, including but not limited to the above-mentioned setting methods. A space for accommodating the toggle part 3 may also be opened on the top of the upper shell 21, and the toggle part 3 is rotatably arranged in the space in a specific shape. The specific shape facilitates manual rotation, thereby facilitating driving the toggle part 3 to rotate.

[0060] In addition, a first magnet is embedded inside the protrusion 11, and a limiting ring 226 corresponding to the position of the slot 221 is provided in the housing 2, specifically, a limiting ring 226 provided on the lower housing 22. A second magnet is provided inside the limiting ring 226, and the limiting ring 226 can be fixed on the lower housing 22 by a plurality of limiting pins, and the limiting ring 226 and the lower housing 22 are spaced apart to form a hollow area 227 between the limiting ring 226 and the lower housing 22. However, under the segmentation effect of the limiting pins, the hollow area 227 will be segmented into a plurality of areas, and each segmented hollow area 227 can correspond to the clamping arm 52 respectively, thereby providing the clamping arm 52 with a movement space for engaging with the clamping slot 12. When the toggle portion 3 is assembled with the lower housing 22, please refer to FIG. 7, and the limiting ring 226 can be inserted into the center hole 32.

[0061] Please refer to FIG. 6 , the lower shell 22 is further provided with a clamping arm slot 224 , in which the clamping arm 52 is slidably disposed. The slot can limit the movement of the clamping arm 52 to a certain extent, so that the clamping arm 52 moves toward or away from the slot hole 221 under the limiting effect.

[0062] Please refer to Figures 3 and 8. The lower shell 22 is further provided with a spring groove 225, in which a return spring 6 is provided. The toggle portion 3 is provided with a return block 34 extending into the spring groove 225 and abutting against the end of the return spring 6. When rotating in the first direction, the return block 34 compresses the return spring 6, and after the external force of the toggle portion 3 disappears, the reverse thrust of the return spring 6 on the return block 34 causes the extrusion column to rotate and reset in the second direction. The first direction is opposite to the second direction, that is, if the first direction is clockwise rotation, then the second direction is counterclockwise.

[0063] It should be pointed out that the extrusion surface of the second extrusion column 33 and the inclined surface 228 can be a plane, an inclined surface or a curved surface, which will not be described in detail here, and it is sufficient to ensure a smooth transition effect.

[0064] Before the bottom buckle 1 is fastened with the female buckle, first bring the bottom buckle 1 and the female buckle close together, that is, bring the protrusion 11 close to the slot 221. Under the mutual attraction between the first magnet and the second magnet, the protrusion 11 will gradually extend into the slot 221. During the extension process, the inclined wedge surface on the protrusion 11 will first contact the clamping arm 52, and with the effect of the magnetic attraction, the inclined wedge surface will force the two clamping arms 52 to move in opposite directions, so that the protrusion 11 completely enters the shell 2, and the clamping slot 12 corresponds to the clamping convex position. At this time, the elastic force of the elastic arm 51 will be released, so that the clamping arm 52 and the clamping slot 12 are stably clamped, and the bottom buckle 1 and the female buckle are fastened. Please refer to Figure 9, which is a schematic diagram of the internal structure of the rotary fastener provided in the embodiment of the present application when fastened.

[0065] When release is required, please refer to Figure 10, which is a schematic diagram of the internal structure of the rotary fastener provided in an embodiment of the present application after release; when external force is applied to the toggle portion 3 to drive the squeezing column to rotate along the first direction, the first squeezing column 35 squeezes the inclined wedge block 53, forcing the two clamping arms 52 to move backwards and stretching the elastic arm 51 to make the elastic force of the elastic arm 51 greater; and the second squeezing column 33 will gradually abut against the inclined surface 228 of the spring piece 222 during the rotation process, and with the continuous action of the first squeezing column 35 and the second squeezing column 33, the clamping arm 52 is gradually forced to completely disengage from the clamping slot 12, so that the spring piece 222 is gradually pushed out of the shell 2, and then the spring piece 222 pushes the bottom buckle 1 away from the shell 2, completing the release of the bottom buckle 1 from the female buckle.

[0066] After the external force of the toggle part 3 disappears, under the action of the reset spring 6, the toggle part 3 and the squeezing column are driven to rotate along the second direction to achieve reset, and the spring piece 222 will automatically reset under the action of its own elastic force because there is no squeezing of the second squeezing column 33, preparing for the next buckle.

[0067] The present application also provides a kind of clothing, which includes the above-mentioned rotating fastener. The clothing includes clothing, luggage accessories and other fields, and the rotating fastener of the present application can be applied to them.

[0068] 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.

[0069] Specific examples are used herein to illustrate the principles and implementation methods of the present application, and the description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A rotary fastener, characterized in that: include: A bottom buckle (1), wherein the bottom buckle (1) is provided with a protrusion (11), and a side wall of the protrusion (11) is provided with a slot (12); A shell (2), wherein a spring sheet (222) and a slot (221) are provided on a lower shell (22) of the shell (2) facing the bottom buckle (1), the protrusion (11) is inserted into the shell (2) through the slot (221), one side of the spring sheet (222) faces the inside of the shell (2), and the other side faces the bottom buckle (1); An elastic member (5) comprising a clamping arm (52) located in the housing (2) and capable of clamping with the clamping slot (12), and an elastic arm (51) connected to the clamping arm (52), wherein the elastic arm (51) is used to provide an elastic force for the clamping arm (52) to move toward the clamping slot (12); A toggle portion (3) is rotatably disposed on the shell (2), and a squeezing column extending into the shell (2) is disposed on the toggle portion (3), the squeezing column corresponding to the position of the spring sheet (222), and when the squeezing column rotates along a first direction, the squeezing column is used to squeeze the clamping arm (52) out of the clamping slot (12), and to squeeze the spring sheet (222) to move toward the bottom buckle (1), and at least after the clamping arm (52) is out of the clamping slot (12), the spring sheet (222) abuts against the bottom buckle (1).

2. The rotary fastener according to claim 1, characterized in that: The number of the clamping arms (52) is two, which are symmetrically distributed on both sides of the slot (221); the elastic arm (51) is located on both sides of the clamping arm (52); and the two ends of the elastic arm (51) are respectively connected to the two clamping arms (52) to provide elastic force for the two clamping arms (52) to move towards each other.

3. The rotary fastener according to claim 2, characterized in that: The clamping arm (52) comprises a clamping protrusion clamped with the clamping groove (12) and an inclined wedge block (53) provided on the clamping protrusion, and the squeezing column comprises a first squeezing column (35) cooperating with the inclined wedge block (53), and when rotating along the first direction, the first squeezing column (35) squeezes the inclined wedge block (53) to cause the two clamping arms (52) to move in opposite directions.

4. The rotary fastener according to claim 3, characterized in that: The squeezing column further comprises a second squeezing column (33) cooperating with the spring sheet (222); a side of the spring sheet (222) facing the inside of the shell (2) is provided with an inclined surface (228); when rotating along the first direction, the second squeezing column (33) and the spring sheet (222) interfere with each other at the inclined surface (228) to squeeze the inclined surface (228), so that the spring sheet (222) moves toward the bottom buckle (1).

5. The rotary fastener according to claim 3, characterized in that: The locking groove (12) is an annular groove provided on the outer periphery of the protrusion (11), and the locking protrusion is an arc-shaped structure that cooperates with the annular groove.

6. The rotary fastener according to any one of claims 1 to 5, characterized in that: The housing (2) further comprises an upper shell (21), the upper shell (21) being provided with a latch, the lower shell (22) being provided with a socket (223) cooperating with the latch, the upper shell (21) and the lower shell (22) being plugged and fixed, and the toggle portion (3) being rotatably arranged on the outer periphery of the upper shell (21).

7. The rotary fastener according to claim 6, characterized in that: The toggle portion (3) is provided with a central hole (32) in the middle, and an arc-shaped hole (31) corresponding to the latch is provided on the periphery of the central hole (32); the latch passes through the arc-shaped hole (31) and is inserted into the socket (223); and the toggle portion (3) is rotatably arranged within the arc-shaped range of the arc-shaped hole (31) to drive the extrusion column to rotate.

8. The rotary fastener according to claim 7, characterized in that: A first magnet is provided inside the protrusion (11); a limiting ring (226) corresponding to the position of the slot hole (221) is provided on the lower shell (22); a second magnet is provided inside the limiting ring (226); the limiting ring (226) is inserted into the center hole (32); a hollow area (227) is provided between the lower shell (22) and the limiting ring (226); and the clamping arm (52) is plugged into the clamping slot (12) via the hollow area (227).

9. The rotary fastener according to claim 6, characterized in that: The lower shell (22) is also provided with a clamping arm groove (224), and the clamping arm (52) is slidably arranged in the clamping arm groove (224) and moves toward or away from the slot hole (221) under the limiting action of the clamping arm groove (224).

10. The rotary fastener according to claim 6, characterized in that: The lower shell (22) is further provided with a spring groove (225), in which a return spring (6) is arranged. The toggle portion (3) is provided with a return block (34) which extends into the spring groove (225) and abuts against the end of the return spring (6). When rotating in the first direction, the return block (34) compresses the return spring (6), and after the external force of the toggle portion (3) disappears, the return spring (6) provides a return elastic force for the toggle portion (3) through the return block (34), so that the extrusion column rotates in a direction opposite to the first direction.

11. A kind of clothing, characterized in that: The invention comprises the rotating fastener as described in any one of claims 1 to 10.

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