Magnetic attraction support and supporting system

Abstract

The utility model provides a magnetic attraction support and a supporting system, the magnetic attraction support comprises a main body, a magnetic attraction piece and a connecting piece, the magnetic attraction piece is arranged on the main body, so that the main body can be magnetically attracted and fixed on external electronic equipment through the magnetic attraction piece; the connecting piece comprises a first swing arm to an Nth swing arm which are sequentially and rotatably connected end to end, the head end of the first swing arm is rotatably connected to the main body, and a mounting part is arranged on the Nth swing arm and used for being connected with external supporting equipment; the first swing arm to the (N-1) th swing arm are respectively provided with a first accommodating cavity to an (N-1) th accommodating cavity, the Nth swing arm to the second swing arm can respectively rotate relative to the (N-1) th swing arm to the first swing arm so as to be respectively accommodated in the (N-1) th accommodating cavity to the first accommodating cavity or respectively rotate to the outer side of the (N-1) th swing arm to the first swing arm, and N is a positive integer greater than or equal to 2. The magnetic support and the supporting system can solve the technical problems that an existing support is huge in structure and inconvenient to store.

Description

Technical Field

[0001] This utility model relates to the field of electronic device accessories technology, and in particular to a magnetic bracket and support system. Background Technology

[0002] With the development of technology, the frequency of use of electronic devices such as mobile phones, power banks, and photography fill lights is increasing. Users often need to carry these electronic devices with them, which also drives the continuous development of electronic devices towards thinner and lighter designs. When encountering scenarios such as outdoor photography and video shooting that require the addition of support equipment such as gimbals and tripods, the aforementioned support equipment is usually connected to the electronic devices through brackets.

[0003] However, existing brackets mainly fix electronic devices by clamping. In order to clamp and fix electronic devices, their size must be comparable to that of the electronic devices themselves, resulting in a relatively large structure that is inconvenient to store and carry, and cannot meet the user's requirement of carrying them with them. The user experience needs to be improved. Utility Model Content

[0004] The purpose of this invention is to solve the technical problem of the bracket structure being too large and inconvenient to store.

[0005] To solve the above-mentioned technical problems, this utility model provides a magnetic suction bracket, comprising:

[0006] main body;

[0007] A magnetic attachment is provided on the main body so that the main body can be magnetically fixed to an external electronic device by means of the magnetic attachment;

[0008] The connector includes a first to an Nth swing arm that are rotatably connected end to end. The first end of the first swing arm is rotatably connected to the main body. The Nth swing arm is provided with a mounting component for connecting to an external support device. The first to the (N-1)th swing arms are respectively provided with a first to the (N-1)th accommodating cavity. The Nth to the second swing arm can rotate relative to the (N-1)th to the first swing arm to be respectively received into the (N-1)th to the first accommodating cavity, or rotate to the outside of the (N-1)th to the first swing arm, where N is a positive integer greater than or equal to 2.

[0009] In one exemplary embodiment of this disclosure, the main body includes a base portion and a rotating seat, the base portion and the rotating seat are rotatably connected, the head end of the first swing arm is rotatably connected to the rotating seat, and the magnetic suction member is disposed on the base portion.

[0010] In one exemplary embodiment of this disclosure, the rotation axis of the base relative to the rotating seat is perpendicular to the rotation axis of the first swing arm relative to the rotating seat.

[0011] In one exemplary embodiment of this disclosure, the rotation axis of the first swing arm relative to the rotating seat and the rotation axis of the second swing arm relative to the first swing arm are perpendicular.

[0012] In one exemplary embodiment of this disclosure, the rotating seat and the base portion, the rotating seat and the first swing arm, and the (N-1)th swing arm and the Nth swing arm are all rotatably connected by a damping shaft, so that the rotating seat, the first swing arm to the Nth swing arm can all be suspended.

[0013] In one exemplary embodiment of this disclosure, the first to the (N-1)th swing arms are hollow to form the first to the (N-1)th receiving cavities, respectively. The first to the (N-1)th swing arms are respectively provided with the first to the (N-1)th openings on their sides. The first to the (N-1)th openings are respectively connected to the first to the (N-1)th receiving cavities. The second to the Nth swing arms can be rotatably received into the first to the (N-1)th receiving cavities through the first to the (N-1)th openings, respectively.

[0014] In one exemplary embodiment of this disclosure, a first window to a N-1 window are respectively provided on the side of the first to the (N-1)th swing arms. The first window to the (N-1)th window are respectively disposed opposite to the first opening to the (N-1)th opening. The first window to the (N-1)th window is used to push the second to the Nth swing arms from the outside so that they can be turned out through the first opening to the (N-1)th opening respectively.

[0015] In one exemplary embodiment of this disclosure, the mounting component is a threaded hole provided on the end face and / or side face of the Nth swing arm away from the (N-1)th swing arm, and the Nth swing arm is connected to a screw on the support device through the threaded hole.

[0016] In one exemplary embodiment of this disclosure, the two opposite sides of the base portion are provided with receiving grooves, and two magnetic suction members are provided, which are respectively received in the two receiving grooves. The two magnetic suction members are respectively used for magnetically adsorbing electronic devices.

[0017] The magnetic holder also includes a cover plate that covers the receiving groove to shield the magnetic component.

[0018] This utility model also provides a support system, including the aforementioned magnetic bracket, support device, and electronic device, wherein the magnetic component of the magnetic bracket is adsorbed onto the electronic device, and the Nth swing arm of the magnetic bracket is mounted on the support device.

[0019] As can be seen from the above technical solution, the beneficial effects of this utility model are as follows:

[0020] In this application, a magnetic attachment is provided on the main body, allowing it to magnetically attach to the electronic device for easy installation and removal. Simultaneously, when the connector transitions to a retracted state, the Nth swing arm rotates relative to the (N-1)th swing arm and is housed in the (N-1)th receiving cavity. The (N-1)th swing arm then rotates relative to the (N-2)th swing arm and is housed in the (N-2)th receiving cavity, and so on, until the second swing arm rotates relative to the first swing arm and is housed in the first receiving cavity. This ensures that the Nth to the second swing arms are housed as a whole in the first receiving cavity, reducing the connector's size in the retracted state, saving storage space, and meeting the user's requirement for portability. Furthermore, during use, the corresponding receiving cavities can be rotated out sequentially, allowing the connector to unfold into the desired shape and connect to the supporting device, greatly improving the user experience. Attached Figure Description

[0021] Figure 1 These are schematic diagrams of the magnetic support structure in some embodiments.

[0022] Figure 2 These are exploded views of the magnetic support in some embodiments.

[0023] Figure 3 These are cross-sectional views of the magnetic holder in some embodiments.

[0024] Figure 4 This is a schematic diagram of the magnetic bracket in its stowed state in some embodiments.

[0025] Figure 5 These are schematic diagrams of the magnetic support when it is deployed in some embodiments.

[0026] Figure 6 This is a structural schematic diagram of the magnetic bracket when the connector is in the storage position in some embodiments.

[0027] Figure 7 This is a schematic diagram of the rotating seat in the magnetic support in some embodiments.

[0028] Figure 8 These are schematic diagrams of the support system in some embodiments.

[0029] Figure 9 These are exploded views of the support system in some embodiments.

[0030] The annotations in the attached figures are explained as follows:

[0031] Magnetic bracket 1, main body 11, base part 111, rotating seat 112, upper plate 1121, lower plate 1122, side plate 1123, protruding post 1124, connecting part 113, first rotating hole 1131, magnetic suction part 12, connecting part 13, first swing arm 131, first receiving cavity 1311, first window 1312, second rotating hole 1313, second swing arm 132, third rotating hole 1321, damping rotating shaft 14, rotating shaft body 141, gasket 142, mounting part 15, receiving groove 16, cover plate 17, electronic equipment 2, support equipment 3. Detailed Implementation

[0032] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0033] In the description of this application, it should be understood that, in the embodiments shown in the accompanying drawings, the indications of direction or positional relationships (such as up, down, left, right, front, and back) are merely for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. These descriptions are appropriate when these elements are in the positions shown in the accompanying drawings. If the description of the positions of these elements changes, these directional indications also change accordingly.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] See Figure 1 and Figure 2 This embodiment provides a magnetic holder 1, which includes a main body 11, a connector 13, and a magnetic component 12. The main body 11 is the main structure of the magnetic holder 1, and the shape of the main body 11 is not limited to rectangular block, circular block, rectangular ring, or ring shape.

[0036] In some embodiments, the connector 13 includes a first swing arm 131 to an Nth swing arm that are rotatably connected end to end. The first end of the first swing arm 131 is rotatably connected to the main body 11 so that the first swing arm 131 can rotate relative to the main body 11. The Nth swing arm is provided with a mounting component 15, which is used to connect to an external support device 3, such as a gimbal or tripod. Here, N is a positive integer greater than or equal to 2.

[0037] By setting the first to the Nth swing arms, the different swing arms can rotate relative to each other, so that the connector 13 can have multiple shapes, thereby providing multiple installation position options and allowing users to freely set the relative positions of the magnetic bracket 1 and the support device 3.

[0038] The first swing arm 131 to the (N-1)th swing arm are respectively provided with a first receiving cavity 1311 to the (N-1)th receiving cavity. The Nth swing arm to the second swing arm 132 can rotate relative to the (N-1)th swing arm to the first swing arm 131 to be respectively received into the (N-1)th receiving cavity to the first receiving cavity 1311, so that the connector 13 is in a retracted state, or rotate to the outside of the (N-1)th swing arm to the first swing arm 131, so that the connector 13 is in an unfolded state.

[0039] Understandably, when the connector 13 transitions to the retracted state, the Nth swing arm rotates relative to the (N-1)th swing arm and is housed in the (N-1)th receiving cavity. The (N-1)th swing arm then rotates relative to the (N-2)th swing arm and is housed in the (N-2)th receiving cavity, and so on, until the second swing arm 132 rotates relative to the first swing arm 131 and is housed in the first receiving cavity 1311. This allows the Nth to the second swing arm 132 to be housed as a whole in the first receiving cavity 1311, forming a "nested doll structure." This reduces the size of the connector 13 when it is in the retracted state, saving storage space and meeting the user's requirement for portability. Furthermore, during use, the corresponding receiving cavities can be rotated out sequentially, allowing the connector 13 to unfold into the desired shape and connect to the support device 3, greatly improving the user experience.

[0040] In some embodiments, the first swing arm 131 to the (N-1)th swing arm are hollow to form a first receiving cavity 1311 to the (N-1)th receiving cavity, respectively. A first opening to an (N-1)th opening is provided on the side of the first swing arm 131 to the (N-1)th swing arm, respectively. The first opening to the (N-1)th opening communicates with the first receiving cavity 1311 to the (N-1)th receiving cavity, so that when the connector 13 is housed, the second swing arm 132 to the Nth swing arm can be rotatably housed into the first receiving cavity 1311 to the (N-1)th receiving cavity through the first opening to the (N-1)th opening, respectively.

[0041] It should be noted that the size of the first opening should be larger than the size of the second swing arm 132, so that the second swing arm 132 can rotate from the first opening into the first receiving cavity 1311, and so on, the size of the (N-1)th opening should be larger than the size of the Nth swing arm.

[0042] In some embodiments, the first accommodating cavity 1311 may be opened along the length direction of the first swing arm 131 to make full use of the space of the first swing arm 131 to accommodate the second swing arm 132, and so on, the (N-1)th accommodating cavity is opened along the length direction of the (N-1)th swing arm, so that each accommodating cavity is opened along the length direction of the corresponding swing arm, thereby enabling more swing arms to be provided, and allowing the connector 13 to form more shapes when unfolded.

[0043] In some embodiments, first windows 1312 to N-1 are respectively provided on the sides of the first swing arms 131 to N-1, and the first windows 1312 to N-1 are respectively arranged opposite to the first opening to the N-1 opening. In this way, when it is necessary to unfold the connector 13, the second swing arms 132 to N-1 can be pushed from the outside through the first windows 1312 to N-1, so that they can be rotated out from the first opening to the N-1 opening respectively. The side where the first windows 1312 to N-1 are located can be directly opposite to the side where the first opening to the N-1 opening are located, or they can be obliquely opposite to them. The side where the first window 1312 is located is adjacent to the side where the first opening is located, and so on, the side where the N-1 window is located is adjacent to the side where the N-1 opening is located. By setting the first window 1312 to the (N-1)th window, it is convenient to rotate the first swing arm 131 to the (N-1)th swing arm out, while also limiting the second swing arm 132 to the Nth swing arm to a certain extent, so that after it rotates into the first accommodating cavity 1311 to the (N-1)th accommodating cavity, it can be stopped and restrained by the side where the first window 1312 to the (N-1)th window is located.

[0044] In some embodiments, the mounting component 15 is a threaded hole provided on the end face and / or side face of the end of the Nth swing arm opposite to the (N-1)th swing arm. By providing the threaded hole, the Nth swing arm can be screwed into the screw provided on the support device 3 to fix the magnetic bracket 1 on the support device 3.

[0045] In some examples, threaded holes can be provided on different sides of the Nth swing arm, allowing the magnetic bracket 1 to connect to the support device 3 in different postures, thus expanding the application range of the magnetic bracket 1. The threaded holes on the Nth swing arm can be 1 / 4-inch imperial threaded holes, which can be connected to other common 1 / 4-inch imperial threads.

[0046] In some embodiments, a stud may be provided on the Nth swing arm so that it can be screwed into a threaded hole on the support device 3 to fix the magnetic device on the support device 3.

[0047] In some embodiments, the main body 11 includes a base portion 111 and a rotating seat 112. The base portion 111 is the main structure of the main body 11, and the base portion 111 and the rotating seat 112 are rotatably connected, allowing the rotating seat 112 to rotate relative to the base portion 111. The first end of the first swing arm 131 is rotatably connected to the rotating seat 112. By providing the rotating seat 112, the connecting member 13 can rotate relative to the base portion 111 in different directions, giving the connecting member 13 a larger range of rotation. This allows the magnetic support 1 to assume various postures to meet the user's needs.

[0048] In some embodiments, a connecting portion 113 may be provided on the outer wall of the base portion 111, and the base portion 111 is rotatably connected to the rotating seat 112 through the connecting portion 113, so that the rotating seat 112 can rotate around the base portion 111.

[0049] In some embodiments, the rotation axis of the base portion 111 relative to the rotating seat 112 is perpendicular to the rotation axis of the first swing arm 131 relative to the rotating seat 112, thereby allowing the first swing arm 131 to rotate 360 ​​degrees along the rotating seat.

[0050] See Figure 7 In some embodiments, the rotating seat 112 can be a semi-enclosed structure, including an upper plate 1121, a lower plate 1122, and a side plate 1123. The side plate 1123 is connected between the upper plate 1121 and the lower plate 1122, which are spaced apart from each other. A connecting part 113 extends between the upper plate 1121 and the lower plate 1122 and is rotatably connected, allowing the rotating seat 112 to rotate 180 degrees around the base. A protruding post 1124 may be provided at the end of the side plate 1123 opposite to the connecting part 113, and the protruding post 1124 is rotatably connected to the head end of the first swing arm 131.

[0051] In some embodiments, the rotating seat 112 and the base 111, the rotating seat 112 and the first swing arm 131, and the (N-1)th swing arm and the Nth swing arm are all rotatably connected by a damping shaft 14, so that the rotating seat 112, the first swing arm 131 to the Nth swing arm can all be suspended and held in any position, and the installation angle of the magnetic bracket 1 on the support device 3 can be adjusted as needed.

[0052] Specifically, corresponding first rotating holes 1131 can be provided on the connecting part 113 and the rotating seat 112. The connecting part 113 and the rotating seat 112 are rotatably connected by a damping shaft 14 passing through the corresponding first rotating holes 1131. The first rotating holes 1131 on the rotating seat 112 can be opened at the relative positions of the upper plate 1121 and the lower plate 1122, so that the damping shaft 14 passes through the upper plate 1121, the connecting part 113 and the lower plate 1122 in sequence, allowing the rotating seat 112 to rotate along the connecting part 113 and hover.

[0053] The first swing arm 131 and the rotating seat 112 can be provided with corresponding second rotating holes 1313. The first swing arm 131 and the rotating seat 112 are rotatably connected by a damping shaft 14 passing through the corresponding second rotating holes 1313. The second rotating hole 1313 on the rotating seat 112 can be opened on the protrusion 1124, so that the damping shaft 14 passes through the first swing arm 131 and the protrusion 1124 in sequence, allowing the first swing arm 131 to rotate along the protrusion 1124 and hover.

[0054] The first end of the second swing arm 132 and the last end of the first swing arm 131 can be provided with corresponding third rotating holes 1321. The first swing arm 131 and the second swing arm 132 are rotatably connected by a damping shaft 14 passing through the corresponding third rotating holes 1321. The third rotating hole 1321 at the last end of the first swing arm 131 can be formed on the two opposite cavity walls of the first accommodating cavity 1311, so that the first end of the second swing arm 132 extends into the first accommodating cavity 1311 and is connected by the damping shaft 14, allowing the second swing arm 132 to rotate along the first swing arm 131 and hover. Similarly, the method of connecting the Nth swing arm and the (N-1)th swing arm by the damping shaft 14 will not be described in detail here.

[0055] In some embodiments, the damping shaft 14 may include a shaft body 141 and a washer 142. The washer 142 is disposed in a first rotation hole 1131, a second rotation hole 1313, a third rotation hole 1321, etc. The shaft body 141 passes through the washer 142 and is rotatably connected to the corresponding first rotation hole 1131, second rotation hole 1313, and third rotation hole 1321, etc. By adjusting the tightness between the shaft body 141 and the washer 142, a damping effect is generated by the friction between the shaft and the washer 142, thereby enabling the rotating seat 112 and the first swing arm 131 to the Nth swing arm to be suspended after rotation. The shaft body 141 and the first rotation hole 1131, second rotation hole 1313, and third rotation hole 1321 may be connected by screws.

[0056] See Figures 3 to 6In this embodiment, N is 2, so that the connector 13 includes a first swing arm 131 and a second swing arm 132 hinged at both ends. By only setting the first swing arm 131 and the second swing arm 132, the connector 13 can meet the installation angle requirements of most magnetic brackets 1 and support devices 3 when obtaining a large rotation range. The connector 13 itself has a more streamlined structure and stronger load-bearing capacity. Of course, in other embodiments, N can be 3 or 4, etc. For example, when N is 3, the connector 13 can include a first swing arm 131, a second swing arm 132 and a third swing arm. The first end of the first swing arm 131 is rotatably connected to the main body 11, the tail end of the first swing arm 131 and the first end of the second swing arm 132 are rotatably connected, and the tail end of the second swing arm 132 and the first end of the third swing arm are rotatably connected.

[0057] For example, see Figure 4 The second swing arm 132 can be rotated and housed in the first receiving cavity 1311, and the first swing arm 131 can be rotated to be on the same plane as the main body 11. At this time, the connector 13 and the main body 11 are folded together, occupying the least space, and the magnetic bracket 1 can be in the storage state, which is convenient to carry.

[0058] For example, see Figure 5 First, the rotating seat 112 can be rotated 90 degrees around the main body 11, and then the second swing arm 132 can be rotated out from the first accommodating cavity 1311 to be perpendicular to the first swing arm 131. At this time, the connecting piece 13 is in an unfolded state, and the magnetic bracket 1 can be installed and connected to the support device 3 through the second swing arm 132. By adjusting the rotation angle of the rotating seat 112, the first swing arm 131 and the second swing arm 132, different installation angles can be obtained.

[0059] In some embodiments, the rotation axis of the first swing arm 131 relative to the rotating seat 112 and the rotation axis of the second swing arm 132 relative to the first swing arm 131 are perpendicular, so that the rotation path of the second swing arm 132 is perpendicular to the rotation path of the first swing arm 131. The second swing arm 132 can have a larger rotation range relative to the base portion 111, and the connecting member 13 can thus have a larger rotation range.

[0060] In some embodiments, the magnetic member 12 is disposed on the main body 11 so that the main body 11 can be magnetically fixed to an external electronic device 2 by the magnetic member 12. The electronic device 2 may include a mobile phone, tablet computer, power bank, camera flash, etc. The magnetic member 12 may be disposed on the base portion 111.

[0061] It is understandable that when the magnetic holder 1 is attached to the electronic device 2, it is usually attached to the back of the electronic device 2 to facilitate frontal use by the user. That is, the magnetic holder 1 is attached to the electronic device 2 via the magnetic component 12. The back of the electronic device 2 has a magnetic assembly for magnetic connection with the magnetic component 12 on the magnetic holder 1. It is also understood that the magnetic component 12 is magnetic and made of a magnetic material, such as a magnet.

[0062] In some embodiments, the magnetic bracket 1 may not be connected to the support device 3. After the magnetic bracket 1 is installed on the back of the electronic device 2 via the magnetic component 12, it is used to place the electronic device 2 on a table or the ground to support the electronic device 2.

[0063] In some embodiments, magnetic elements 12 are provided on both opposite sides of the base portion 111, and the two magnetic elements 12 are used to magnetically attach the electronic device 2. For example, one side of the base portion 111 is attached to the back of a mobile phone via the magnetic element 12, and the other side of the base portion 111 is attached to a photography fill light via the magnetic element 12, thereby allowing the photography fill light to be detachably connected to the mobile phone, facilitating the use of the photography fill light to provide supplementary lighting for taking photos with the mobile phone.

[0064] In some embodiments, to facilitate the installation of the magnetic suction member 12, a receiving groove 16 is provided on each of the two opposite sides of the base portion 111, and the two magnetic suction members 12 are respectively housed in the two receiving grooves 16, so as to avoid the magnetic suction member 12 being exposed on the surface of the base portion 111 and to fix and limit the magnetic suction member 12.

[0065] In some embodiments, the magnetic bracket 1 may further include a cover plate 17, which covers the receiving groove 16 to cover the magnetic component 12, thereby preventing the magnetic component 12 from being exposed, improving the aesthetics of the magnetic bracket 1, and preventing the magnetic component 12 from falling out of the receiving groove 16.

[0066] In some embodiments, the base portion 111 is an annular member, and the receiving groove 16 is an annular groove structure formed on the base portion 111, with the receiving groove 16 and the base portion 111 being coaxially connected. The base portion 111 can be a circular annular member, a rectangular annular member, or other irregularly shaped members.

[0067] In some embodiments, the magnetic member 12 is ring-shaped and can be a magnet, which is adapted to the shape of the receiving groove 16 so that the magnetic member 12 and the receiving groove 16 can be installed together.

[0068] In some embodiments, the magnetic member 12 can also be fixed to the side of the base portion 111 by adhesive or screwing.

[0069] See Figure 8 and Figure 9This embodiment also provides a support system, which includes the aforementioned magnetic bracket 1, support device 3, and electronic device 2. The electronic device 2 can be a mobile phone, power bank, panel light, photographic fill light, or camera, etc.

[0070] In some embodiments, the magnetic element 12 of the magnetic bracket 1 is attached to the electronic device 2, and the Nth swing arm of the magnetic bracket 1 is mounted on the support device 3, thereby connecting the electronic device 2 and the support device 3. The support device 3 may include a gimbal and a tripod, etc. In this embodiment, N is taken as an example for explanation.

[0071] In this embodiment, when the connector 13 in the magnetic bracket 1 is in the unfolded state, the connector 13 can rotate and open relative to the main body 11, so that the first swing arm 131 and the second swing arm 132 are located outside the main body 11. The second swing arm 132 can be connected to the support device 3. At this time, the magnetic bracket 1 can have different postures due to the rotation of the rotating seat 112, the first swing arm 131, and the second swing arm 132 in different directions. The user can choose the appropriate posture to connect with the support device 3 according to their own needs.

[0072] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not 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 embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A magnetic holder, characterized in that, include: main body; A magnetic attachment is provided on the main body so that the main body can be magnetically fixed to an external electronic device by means of the magnetic attachment; The connector includes a first to an Nth swing arm that are rotatably connected end to end. The first end of the first swing arm is rotatably connected to the main body. The Nth swing arm is provided with a mounting component for connecting to an external support device. The first to the (N-1)th swing arms are respectively provided with a first to an (N-1)th accommodating cavity. The Nth to the second swing arm can rotate relative to the (N-1)th to the first swing arm to be respectively received into the (N-1)th to the first accommodating cavity, or rotate to the outside of the (N-1)th to the first swing arm. Wherein, N is a positive integer greater than or equal to 2.

2. The magnetic holder according to claim 1, characterized in that, The main body includes a base and a rotating seat. The base and the rotating seat are rotatably connected. The first end of the first swing arm is rotatably connected to the rotating seat. The magnetic suction element is disposed on the base.

3. The magnetic holder according to claim 2, characterized in that, The rotation axis of the base relative to the rotating seat is perpendicular to the rotation axis of the first swing arm relative to the rotating seat.

4. The magnetic holder according to claim 2, characterized in that, The rotation axis of the first swing arm relative to the rotating seat is perpendicular to the rotation axis of the second swing arm relative to the first swing arm.

5. The magnetic holder according to claim 2, characterized in that, The rotating seat and the base, the rotating seat and the first swing arm, and the (N-1)th swing arm and the Nth swing arm are all rotatably connected by damping shafts, so that the rotating seat, the first swing arm to the Nth swing arm can all be suspended.

6. The magnetic holder according to claim 1, characterized in that, The first to the (N-1)th swing arms are hollow inside to form the first to the (N-1)th receiving cavities, respectively. The first to the (N-1)th swing arms are respectively provided with the first to the (N-1)th openings on their sides. The first to the (N-1)th openings are respectively connected to the first to the (N-1)th receiving cavities. The second to the Nth swing arms can be rotated and received into the first to the (N-1)th receiving cavities through the first to the (N-1)th openings, respectively.

7. The magnetic holder according to claim 6, characterized in that, The first to the (N-1)th swing arms are respectively provided with a first window to a (N-1)th window on their sides. The first to the (N-1)th windows are respectively arranged opposite to the first to the (N-1)th openings. The first to the (N-1)th windows are used to push the second to the Nth swing arms from the outside so that they can turn out through the first to the (N-1)th openings respectively.

8. The magnetic holder according to claim 1, characterized in that, The mounting component is a threaded hole provided on the end face and / or side face of the Nth swing arm away from the (N-1)th swing arm, and the Nth swing arm is connected to the screw on the support device through the threaded hole.

9. The magnetic holder according to claim 2, characterized in that, The base portion has accommodating grooves on both opposite sides, and two magnetic suction components are provided, which are respectively accommodated in the two accommodating grooves. The two magnetic suction components are respectively used for magnetic adsorption of electronic devices. The magnetic holder also includes a cover plate that covers the receiving groove to shield the magnetic component.

10. A support system, characterized in that, The device includes a magnetic bracket, a support device, and an electronic device as described in any one of claims 1 to 9, wherein the magnetic component of the magnetic bracket is adsorbed onto the electronic device, and the Nth swing arm of the magnetic bracket is mounted on the support device.

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