Magnetic attraction support and magnetic attraction support assembly

Abstract

The magnetic support assembly comprises the magnetic support and a support base, the magnetic support comprises a first end and a second end which are oppositely arranged, the first end is used for being connected with a mobile phone, the second end comprises a rotating column and a magnetic part, and the magnetic part is fixed to the side, opposite to the first end, of the rotating column. The second end further comprises a threaded opening, the threaded opening is formed in the rotating column and extends in the axis direction of the rotating column, the threaded opening is used for being connected with equipment with a threaded rod, a limiting structure is arranged on the edge of the side wall of the rotating column in a protruding mode, the rotating column rotates circumferentially around the axis of the rotating column, and the limiting structure rotates synchronously. The limiting structure is clamped in the external support base, and the magnetic part, the limiting structure and the threaded opening are arranged on the rotating column in a combined mode, so that the magnetic attraction support can be connected with different auxiliary devices, the adaptability of the magnetic attraction support is improved, and the use scene of the magnetic attraction support is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of photographic accessories, in particular to a magnetic bracket and a magnetic bracket assembly. Background Art

[0002] With the improvement of living standards, people will use shooting devices such as mobile phones to shoot videos to record their lives. When users use mobile phones to shoot first-person videos, they usually install the mobile phones on shooting brackets. The shooting brackets are provided with a quick-release structure and magnetic components. By quickly connecting the shooting brackets with a neck-mounted structure or a shoulder strap, shooting is facilitated. However, the existing shooting brackets can only be connected to the compatible neck-mounted structure, resulting in fewer usage scenarios. When users want to install shooting devices such as mobile phones on other auxiliary devices such as tripods, since the existing shooting brackets cannot be connected to tripods, the mobile phones need to be separated from the shooting brackets and reinstalled on another compatible shooting bracket, which affects the user experience. Summary of the Utility Model

[0003] The utility model provides a magnetic bracket and a magnetic bracket assembly to solve the problem that the quick-release structure of the existing bracket can only be connected to one auxiliary shooting device, resulting in low adaptability.

[0004] A magnetic bracket includes:

[0005] A first end for connecting to a mobile phone;

[0006] A second end, which is disposed opposite to the first end. The second end includes a rotating column and a magnetic component. The magnetic component is fixed on a side of the rotating column facing away from the first end. The second end further includes a threaded port, which is opened on the rotating column and extends along the axis of the rotating column. A limiting structure is provided on the side wall of the rotating column. When the rotating column is rotated circumferentially around the axis of the rotating column, the limiting structure rotates synchronously, so that the limiting structure is clamped to an external bracket base.

[0007] In one embodiment, a fixing groove is opened on a side of the rotating column facing away from the first end, and the magnetic component is fixed in the fixing groove.

[0008] In one embodiment, the fixing groove is an annular groove, a threaded post is formed at the center of the fixing groove of the rotating column, the threaded port is opened on the threaded post, and the threaded post passes through the magnetic component.

[0009] In one embodiment, a plurality of limiting structures are provided, and the plurality of limiting structures are spaced apart on a side edge of the rotating column away from the first end. When the rotating column is rotated circumferentially, the plurality of limiting structures are simultaneously clamped to the bracket base.

[0010] A magnetic adsorption bracket assembly includes a bracket base and the above-mentioned magnetic adsorption bracket. The bracket base is in snap-fit connection with the second end. The limiting structure is a first clamping block. The bracket base is provided with a quick-release groove. A second clamping block protrudes from the groove wall of the quick-release groove. A clamping space is formed between the second clamping block and the bottom wall of the quick-release groove. The rotating column is accommodated in the quick-release groove and rotates circumferentially around its axis. The first clamping block rotates circumferentially and slides into the clamping space. The first clamping block abuts and clamps with the second clamping block so that the magnetic adsorption bracket is clamped with the bracket base.

[0011] In one embodiment, a baffle protrudes from the groove wall of the quick-release groove. The baffle is arranged in the clamping space and its two ends are respectively connected to the second clamping block and the bottom wall of the quick-release groove. The baffle is located on the rotation path of the first clamping block.

[0012] In one embodiment, the bracket base includes a first shell and a second shell that are relatively snapped together. The quick-release groove is arranged on the first shell. The second shell is located on the side of the first shell facing away from the quick-release groove. A positioning button is also arranged between the first shell and the second shell. A sliding channel for the positioning button to slide is formed by enclosing the first shell and the second shell. The positioning button abuts against the first clamping block to limit the circumferential rotation of the rotating column.

[0013] In one embodiment, a limiting block protrudes from the positioning button. An avoidance opening communicating with the sliding channel is formed in the bottom wall of the quick-release groove. The avoidance opening extends along the pressing direction of the positioning button and avoids the limiting block. A limiting groove is formed in the first clamping block. Openings are arranged at opposite ends of the limiting groove along the direction perpendicular to the axis of the rotating column. The limiting block is snapped into the limiting groove and abuts against the groove wall of the limiting groove to limit the circumferential rotation of the rotating column. Press the positioning button, and the limiting block slides out of the limiting groove through the opening along the direction perpendicular to the axis of the rotating column, and the circumferential rotation limit of the rotating column is released.

[0014] In one embodiment, a sliding rail is arranged on the positioning button along the sliding direction. A sliding block is arranged on the inner wall of the sliding channel of the second shell. The sliding block is arranged in the sliding rail. Press the positioning button, and the sliding block slides relative to the positioning button in the sliding rail.

[0015] In one embodiment, the bracket base further includes a hanging ring for hanging on the neck; and / or,

[0016] The first end includes a magnetic suction disc and a connecting rod. The magnetic suction disc is rotatably connected to the connecting rod and is used for magnetically adsorbing and fixing a mobile phone. One end of the connecting rod is used to support the magnetic suction disc, and the other end of the connecting rod is fixedly connected to the second end.

[0017] As can be seen from the above technical solutions, the embodiments of the present utility model have at least the following advantages and positive effects:

[0018] The magnetic adsorption bracket of the embodiment of the present utility model includes a first end and a second end which are oppositely arranged. The first end is used to connect to a mobile phone. The second end includes a rotating column and a magnetic member. The magnetic member is fixed on the side of the rotating column facing away from the first end. The magnetic member is used for magnetically adsorbing and fixing the magnetic adsorption bracket. The second end also includes a threaded opening which is opened on the rotating column and extends along the axial direction of the rotating column. The threaded opening is used to connect to a device with a threaded rod. A limiting structure is convexly arranged on the side wall edge of the rotating column. When the rotating column rotates circumferentially around its axis, the limiting structure rotates synchronously. The limiting structure is clamped in an external bracket base. The magnetic member, the limiting structure and the threaded opening are combined and arranged on the rotating column, so that the magnetic adsorption bracket can be connected to different auxiliary devices, thereby improving the adaptability of the magnetic adsorption bracket to increase the usage scenarios of the magnetic adsorption bracket. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the magnetic adsorption bracket of the first embodiment of the present utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of the magnetic adsorption bracket assembly of the second embodiment of the present utility model;

[0022] Figure 3 For Figure 2 the exploded structure schematic diagram of the magnetic adsorption bracket assembly shown;

[0023] Figure 4 For Figure 3 the exploded structure schematic diagram of the magnetic adsorption bracket assembly from another perspective shown;

[0024] Figure 5 It is a schematic diagram of the overall structure of the magnetic adsorption bracket assembly of the third embodiment of the present utility model.

[0025] The description of the reference numerals is as follows:

[0026] 1. Magnetic adsorption bracket assembly; 10. Magnetic adsorption bracket; 30. Bracket base;

[0027] 100. First end; 110. Magnetic chuck; 120. Connecting rod; 121. First rod; 122. Second rod; 123. Third rod; 200. Second end; 210. Rotating column; 211. Fixed groove; 212. Threaded column; 220. Magnetic member; 230. Threaded opening; 240. Limiting structure; 241. First clamping block; 2411. Limiting groove; 2412. Opening; 300. Quick-release groove; 310. Second clamping block; 320. Engaging space; 330. Baffle; 340. Avoidance opening; 400. First housing; 410. Buckling groove; 420. Dismantling button; 500. Second housing; 510. Sliding channel; 511. Slide block; 600. Positioning button; 610. Limiting block; 620. Slide rail; 700. Hanging loop. Detailed implementation manners

[0028] Typical implementation manners embodying the features and advantages of the present utility model will be described in detail in the following description. It should be understood that the present utility model can have various changes in different implementation manners, all of which do not depart from the scope of the present utility model, and the descriptions and illustrations therein are essentially for illustrative purposes rather than for limiting the present utility model.

[0029] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the said features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0030] In the description of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "arranged", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0031] First, please refer to Figure 1 and Figure 2, the present utility model provides a magnetic suction bracket 10, which is used to install shooting devices such as mobile phones. The magnetic suction bracket 10 can be connected to external auxiliary devices, such as tripods or wearable brackets, etc., so as to make mobile phone shooting more convenient and stable. The magnetic suction bracket 10 includes a first end 100 and a second end 200. The first end 100 is used to install and fix the mobile phone. The second end 200 is arranged opposite to the first end 100. The second end 200 includes a rotating column 210 and a magnetic member 220. The first end 100 is located at one end of the rotating column 210. The magnetic member 220 is fixed on the side of the rotating column 210 facing away from the first end 100. The magnetic member 220 is used to magnetically fix the magnetic suction bracket 10 to the external auxiliary device. A threaded port 230 is opened on the side of the rotating column 210 facing away from the first end 100 and extends along the axial direction of the rotating column 210. The threaded port 230 is used to connect an external auxiliary device with a threaded rod. A limiting structure 240 is arranged on the side edge of the side wall of the rotating column 210. The rotating column 210 rotates circumferentially around its axis, and the limiting structure 240 rotates circumferentially synchronously, so that the limiting structure 240 is clamped to the external bracket base 30. The magnetic member 220, the limiting structure 240 and the threaded port 230 are combined and arranged on the rotating column 210, so that the magnetic suction bracket 10 can be connected to different auxiliary devices, thereby improving the adaptability and usage scenarios of the magnetic suction bracket 10.

[0032] A fixing groove 211 is opened on the side of the rotating column 210 facing away from the first end 100. The magnetic member 220 is fixed in the fixing groove 211. The depth distance of the fixing groove 211 is the same as the thickness distance of the magnetic member 220. When the magnetic member 220 is placed in the fixing groove 211, the magnetic member 220 is flush with the end face of the rotating column 210. Thus, when the rotating column 210 is connected to the auxiliary device, the magnetic member 220 is magnetically attached to the auxiliary device. It can be understood that the fixing method of the magnetic member 220 fixed in the fixing groove 211 is not limited. This fixing method can be by snap connection with a convex block, or by adhesive bonding, or by buckling with a rotatable lock.

[0033] In this embodiment, the fixing groove 211 is an annular groove, that is, the fixing groove 211 is an annular groove-shaped structure extending circumferentially and communicating with each other at the head and tail. The rotating column 210 forms a threaded column 212 at the center of the fixing groove 211. The extending direction of the axis of the threaded column 212 is the same as the extending direction of the axis of the rotating column 210. The axial length of the threaded column 212 is not greater than the depth of the fixing groove 211. The threaded opening 230 is formed in the threaded column 212 and extends along the axial direction of the threaded column 212. The magnetic member 220 is correspondingly also set as an annular structure. The magnetic member 220 is sleeved around the threaded column 212, so that the periphery of the threaded column 212 is sleeved and abutted, so that when the threaded opening 230 is connected to an auxiliary device with a threaded rod such as a tripod, the threaded column 212 will not shake left and right, improving stability. And the threaded opening 230 is located at the center position of the fixing groove 211, so that the threaded opening 230 is balanced in force in all directions when connecting the tripod. It can be understood that the fixing groove 211 and the magnetic member 220 may not be set as an annular structure, for example, set as a square, etc. The threaded column 212 may not be provided either. For example, the threaded opening 230 is directly formed at other positions of the rotating column 210 except the fixing groove 211.

[0034] A plurality of limiting structures 240 are provided. The plurality of limiting structures 240 are arranged at intervals on the side edge of the rotating column 210 away from the first end 100. In this embodiment, two limiting structures 240 are provided. The two limiting structures 240 are arranged at intervals relative to each other along the circumferential direction of the rotating column 210. The two limiting structures 240 can be respectively clamped to the external support base 30, so that the abutting force between the magnetic suction support 10 and the support base 30 is balanced. It can be understood that the limiting structure 240 can also be set to three or four, and the interval distance between adjacent two limiting structures 240 is the same, so as to ensure that when the rotating column 210 rotates, the plurality of limiting structures 240 can be clamped or disengaged from the support base 30 at the same time.

[0035] Reference Figures 2 to 4 , the present utility model also provides a magnetic suction support assembly 1. The magnetic suction support assembly 1 includes the above-mentioned magnetic suction support 10 and the support base 30. The support base 30 is clamped and matched with the second end 200. The support base 30 is provided with a quick-release groove 300. The quick-release groove 300 is matched with the rotating column 210 and is a circular groove. The rotating column 210 is accommodated in the quick-release groove 300 and rotates circumferentially in the quick-release groove 300. In this embodiment, the limiting structure 240 is a convex block structure. Specifically, the limiting structure 240 is a first clamping block 241. The first clamping block 241 protrudes along the side wall of the rotating column 210, and the first clamping block 241 is located at one end of the rotating column 210 facing away from the first end 100. The first clamping block 241 extends in an arc around the axis of the rotating column 210. During the arc extension, the distance from the edge of the first clamping block 241 to the side wall of the rotating column 210 is the same, so that the first clamping block 241 rotates more smoothly in the quick-release groove 300 along the circumferential direction.

[0036] A second clamping block 310 protrudes from the groove wall of the quick-release groove 300. A clamping space 320 is formed at an interval between the second clamping block 310 and the bottom wall of the quick-release groove 300. Under the guidance of the magnetic attraction of the magnetic member 220, the rotating column 210 can conveniently and accurately enter the quick-release groove 300. When the rotating column 210 is inserted into the quick-release groove 300, the rotating column 210 is rotated circumferentially around the axis of the rotating column 210, and the first clamping block 241 rotates synchronously in the circumferential direction. The first clamping block 241 slides into the clamping space 320, and the first clamping block 241 abuts and clamps with the second clamping block 310. The first clamping block 241 is limited in the axial direction of the rotating column 210 in the clamping space 320, so that the magnetic suction bracket 10 and the bracket base 30 are quickly clamped. When it is necessary to separate the magnetic suction bracket 10 and the bracket base 30, the rotating column 210 is rotated in the reverse direction, and the first clamping block 241 rotates synchronously in the reverse direction. The first clamping block 241 slides out of the clamping space 320, and the first clamping block 241 and the second clamping block 310 are separated. At this time, in the axial direction of the rotating column 210, the limit of the first clamping block 241 is released, so that the magnetic suction bracket 10 and the bracket base 30 can be quickly disassembled.

[0037] It should be noted that in other embodiments, the limiting structure 240 can also be a slot structure. For example, the slot is opened on the side surface of the rotating column 210 and extends circumferentially. A notch communicating with the slot is provided at the end of the rotating column 210. Similarly, a second clamping block 310 is provided on the inner wall of the quick-release groove 300. When the rotating column 210 enters the quick-release groove 300, the second clamping block 310 enters the slot through the notch. The rotating column 210 is rotated, and the second clamping block 310 slides circumferentially into the deepest part of the slot, so that the magnetic suction bracket 10 and the bracket base 30 are clamped.

[0038] A baffle 330 also protrudes from the groove wall of the quick-release groove 300. The baffle 330 is arranged in the clamping space 320, and both ends of the baffle 330 are respectively connected to the second clamping block 310 and the bottom wall of the quick-release groove 300. The connection manner of the baffle 330 with the second clamping block 310 and the bottom wall of the quick-release groove 300 can be an integral connection. The baffle 330 is located on the rotation path of the first clamping block 241. When the first clamping block 241 slides into the clamping space 320, the baffle 330 blocks the first clamping block 241 from continuing to slide, so as to prevent the first clamping block 241 from sliding out of the other end of the clamping space 320 that has slid into the clamping space 320 due to excessive rotation. The baffle 330 can make the first clamping block 241 more easily positioned in the clamping space 320, making the quick-release connection between the magnetic suction bracket 10 and the bracket base 30 more convenient. It should be noted that in this embodiment, two first clamping blocks 241, second clamping blocks 310 and baffles 330 are provided and are arranged oppositely. It can be understood that only one baffle 330 can also be provided. After one of the first clamping blocks 241 abuts against the baffle 330, the rotation of the other first clamping block 241 is also restricted.

[0039] It can be understood that after the first clamping block 241 slides into the clamping space 320, the reverse direction of the circumferential rotation of the first clamping block 241 is also limited. The limiting method is not limited. It can be a structure with protrusions and grooves respectively arranged on the first clamping block 241 and the second clamping block 310. When the first clamping block 241 slides into the clamping space 320, the protrusion slides into the groove at the same time to realize the positioning of the first clamping block 241 and the second clamping block 310, or the rotational positioning of the first clamping block 241 is realized through a pressable positioning button 600.

[0040] Continue to refer to Figure 3 and Figure 4 , the bracket base 30 includes a first shell 400 and a second shell 500 that are relatively buckled. The quick-release groove 300 is arranged on the first shell 400. A buckling groove 410 is arranged on the side of the first shell 400 facing away from the quick-release groove 300. The second shell 500 is located on the side of the first shell 400 facing away from the quick-release groove 300 and is fixed in the buckling groove 410. The bracket base 30 further includes a positioning button 600. The positioning button 600 is arranged between the first shell 400 and the second shell 500. The first shell 400 and the second shell 500 enclose to form a sliding channel 510. The positioning button 600 passes through the first shell 400 and is accommodated in the sliding channel 510 and slides along the sliding channel 510. One end of the positioning button 600 extends out of the first shell 400, and the other end abuts against the first clamping block 241, so as to limit the circumferential rotation of the rotating column 210.

[0041] In this embodiment, the positioning button 600 is protrudingly provided with a limiting block 610. An avoidance opening 340 is formed in the bottom wall of the quick-release slot 300. The avoidance opening 340 communicates with the quick-release slot 300 and the fastening slot 410. At the same time, the avoidance opening 340 also communicates with the quick-release slot 300 and the sliding channel 510. The avoidance opening 340 avoids the limiting block 610. The limiting block 610 enters the quick-release slot 300 from the sliding channel 510 through the avoidance opening 340. The avoidance opening 340 extends along the pressing direction of the positioning button 600. When the positioning button 600 is pressed, the limiting block 610 slides along the avoidance opening 340. The first clamping block 241 is provided with a limiting groove 2411. Openings 2412 are provided at opposite ends of the limiting groove 2411 along a direction perpendicular to the axis of the rotating column 210. The limiting block 610 is snapped into the limiting groove 2411 along a direction perpendicular to the axis of the rotating column 210 through the openings 2412. The groove wall of the limiting groove 2411 abuts against the limiting block 610. The first clamping block 241 is positioned within the clamping space 320, and the circumferential rotation of the rotating column 210 is limited. The magnetic adsorption bracket 10 and the bracket base 30 are in a clamped connection state. When the positioning button 600 is pressed, the limiting block 610 slides out of the limiting groove 2411 along a direction perpendicular to the axis of the rotating column 210 through the openings 2412. At this time, the limiting block 610 is separated from the groove wall of the limiting groove 2411, and the circumferential rotation limit of the rotating column 210 is released, so that the first clamping block 241 can rotate in the reverse direction to slide out of the clamping space 320, thereby separating the magnetic adsorption bracket 10 from the bracket base 30.

[0042] It can be understood that the limiting groove 2411 may not be provided. For example, when the first clamping block 241 slides into the clamping space 320, one end of the first clamping block 241 in the sliding direction abuts against the baffle 330, the limiting block 610 abuts against the other end of the first clamping block 241, and the limiting block 610 and the baffle 330 clamp the first clamping block 241 between them. The circumferential rotation of the first clamping block 241 is limited. When the positioning button 600 is pressed, the limiting block 610 moves along the pressing direction until it is separated from the edge of the first clamping block 241. At this time, the limit on the side of the first clamping block 241 away from the baffle 330 is released, and the first clamping block 241 can slide out of the clamping space 320 in the opposite direction to the direction of sliding into the clamping space 320.

[0043] A reset member (not shown in the figure) is further provided on one side of the positioning button 600 facing away from the pressing end. The reset member drives the positioning button 600 to return to the initial state. The reset member can be a spring or an elastic cord. One end of the reset member abuts against the bottom wall of the sliding channel 510, and the other end of the reset member abuts against the positioning button 600. In the initial state, the pressing end of the positioning button 600 extends out of the surface of the first housing 400, and the limiting block 610 is snapped into the limiting groove 2411. When the positioning button 600 is pressed, the limiting block 610 is separated from the limiting groove 2411, and the reset member accumulates a force in the direction opposite to the pressing direction. After the external force is removed, the reset member pushes the positioning button 600 to slide in the reverse direction to return to the initial state.

[0044] The positioning button 600 is provided with a slide rail 620 along the sliding direction. The inner wall of the sliding channel 510 is correspondingly provided with a slider 511. The slider 511 is arranged in the slide rail 620. When the positioning button 600 is pressed, the slider 511 slides relative to the positioning button 600 in the slide rail 620, so that the positioning button 600 will not shift. Both the slider 511 and the slide rail 620 are provided in two, so that the positioning button 600 is more stable when sliding. It can be understood that the slide rail 620 can also be arranged on the inner wall of the sliding channel 510, and the slider 511 is arranged on the positioning button 600.

[0045] In one embodiment, referring to Figure 5 , the bracket base 30 further includes a hanging ring 700. The hanging ring 700 is used for hanging on the neck, so that after the magnetic suction bracket 10 is connected to the bracket base 30, the user can hang the mobile phone on the chest for convenient shooting. The hanging ring 700 is detachably connected to the first shell 400. The first shell 400 is provided with a disassembly button 420 for disassembling the hanging ring 700. Press the disassembly button 420, and the hanging ring 700 will be detached from the first shell 400. It can be understood that the hanging ring 700 can also be other wearable devices, such as a shoulder strap, etc.

[0046] In one embodiment, the first end 100 of the magnetic suction bracket 10 includes a magnetic suction disc 110 and a connecting rod 120. The magnetic suction disc 110 is used for magnetically sucking and fixing the mobile phone, and the connecting rod 120 is used for supporting the magnetic suction disc 110. The connecting rod 120 includes a first rod 121, a second rod 122 and a third rod 123. The first rod 121 is rotatably connected to the magnetic suction disc 110. One end of the first rod 121 close to the second rod 122 is rotatably connected to the second rod 122. One end of the second rod 122 close to the third rod 123 is rotatably connected to the third rod 123. The end of the third rod 123 far from the second rod 122 is fixedly connected to the rotating column 210. It should be noted that the rotational connections between the magnetic suction disc 110 and the first rod 121, between the first rod 121 and the second rod 122, and between the second rod 122 and the third rod 123 are all damped rotations, so that the mobile phone can be conveniently positioned at different shooting angles after being installed on the magnetic suction disc 110.

[0047] Although the present invention has been described with reference to several exemplary embodiments, it should be understood that the terms used are descriptive and exemplary, rather than restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above-described embodiments are not limited to any of the foregoing details, but should be broadly construed within the spirit and scope defined by the appended claims. Therefore, all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A magnetic suction bracket, characterized in that, Comprising: A first end for connecting to a mobile phone; A second end, which is disposed opposite to the first end. The second end includes a rotating column and a magnetic member. The magnetic member is fixed to a side of the rotating column facing away from the first end. The second end further includes a threaded opening, which is opened on the rotating column and extends along the axis of the rotating column. A limiting structure is provided on the side wall of the rotating column. When the rotating column is rotated circumferentially around its axis, the limiting structure rotates synchronously, so that the limiting structure is clamped to an external bracket base.

2. The magnetic suction bracket according to claim 1, wherein A fixing groove is opened on a side of the rotating column facing away from the first end, and the magnetic member is fixed in the fixing groove.

3. The magnetic suction bracket according to claim 2, wherein The fixing groove is an annular groove. A threaded column is formed at the center of the fixing groove of the rotating column. The threaded opening is opened on the threaded column, and the threaded column passes through the magnetic member.

4. The magnetic suction bracket according to claim 1, wherein A plurality of the limiting structures are provided. The plurality of limiting structures are spaced apart from each other on a side edge of the rotating column away from the first end. When the rotating column is rotated circumferentially, the plurality of limiting structures are simultaneously clamped to the bracket base.

5. A magnetic suction bracket assembly, characterized in that, Comprising a bracket base and the magnetic suction bracket according to any one of claims 1 to 4. The bracket base is in clamping cooperation with the second end. The limiting structure is a first clamping block. The bracket base is provided with a quick-release groove. A second clamping block protrudes from a groove wall of the quick-release groove. A clamping space is formed by a space between the second clamping block and a bottom wall of the quick-release groove. The rotating column is accommodated in the quick-release groove and rotates circumferentially around its axis. The first clamping block rotates circumferentially and slides into the clamping space, and the first clamping block abuts and clamps with the second clamping block, so that the magnetic suction bracket is clamped to the bracket base.

6. The magnetic adsorption bracket assembly according to claim 5, wherein, A baffle protrudes from the groove wall of the quick-release groove. The baffle is disposed in the clamping space and is respectively connected to the second clamping block and the bottom wall of the quick-release groove at both ends. The baffle is located on a rotation path of the first clamping block.

7. The magnetic adsorption bracket assembly according to claim 5, wherein The bracket base includes a first shell and a second shell that are relatively buckled. The quick-release groove is provided in the first shell. The second shell is located on a side of the first shell facing away from the quick-release groove. A positioning button is further provided between the first shell and the second shell. A sliding channel for the positioning button to slide is formed by enclosing the first shell and the second shell. The positioning button abuts against the first clamping block, and the circumferential rotation of the rotating column is limited.

8. The magnetic adsorption bracket assembly according to claim 7, wherein The positioning button protrudes with a limiting block. An avoidance opening communicating with the sliding channel is opened on the bottom wall of the quick-release groove. The avoidance opening extends along a pressing direction of the positioning button and avoids the limiting block. A limiting groove is opened in the first clamping block. Openings are provided at opposite ends of the limiting groove along a direction perpendicular to the axis of the rotating column. The limiting block is snapped into the limiting groove and abuts against a groove wall of the limiting groove, and the circumferential rotation of the rotating column is limited. When the positioning button is pressed, the limiting block slides out of the limiting groove through the opening along a direction perpendicular to the axis of the rotating column, and the circumferential rotation limit of the rotating column is released.

9. The magnetic adsorption bracket assembly according to claim 7, wherein, The positioning button is provided with a sliding rail along the sliding direction, and the second shell is provided with a slider on the inner wall of the sliding channel. The slider is arranged in the sliding rail. When the positioning button is pressed, the slider slides relative to the positioning button in the sliding rail.

10. The magnetic adsorption bracket assembly according to claim 5, wherein, The bracket base further includes a hanging ring for hanging on the neck; and / or, The first end includes a magnetic suction cup and a connecting rod. The magnetic suction cup is rotatably connected to the connecting rod and is used for magnetically attracting and fixing the mobile phone. One end of the connecting rod is used for supporting the magnetic suction cup, and the other end of the connecting rod is fixedly connected to the second end.

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