Function expansion interface capable of being opened and closed through magnetic adsorption

Abstract

The utility model relates to a function expansion interface capable of being opened and closed through magnetic attraction. The function expansion interface comprises a magnetic attraction interface mounting bracket assembly, a magnetic attraction function expansion interface and an expandable bracket, wherein the magnetic adsorption function expansion interface comprises a magnetic adsorption interface welding bracket assembly fixed on the magnetic adsorption interface mounting bracket assembly and a magnetic adsorption interface turning cover assembly mounted on the magnetic adsorption interface welding bracket assembly; the magnetic suction connector flip cover assembly comprises a magnetic suction connector flip cover body, a magnet fixing support and a lock pin. A magnet is arranged on the magnet fixing support, and an unlocking gap is reserved between the magnet fixing support and the magnetic attraction connector flip cover body under the action of the magnet fixing support spring. An unlocking magnet is arranged on the expandable support, the unlocking magnet and a magnet on the magnet fixing support are attracted, and the magnet fixing support is driven by magnetic force to be close to the magnetic attraction connector flip cover body to achieve unlocking. The function expansion interface is opened and closed in a magnetic attraction mode, it is ensured that the interface is not easy to open in a non-use state, and misoperation is avoided.

Description

Technical Field

[0001] The utility model belongs to the field of automobiles, and particularly relates to a function expansion interface that can be opened and closed by magnetic adsorption. Background Art

[0002] A variety of brackets are usually provided in existing automobiles to meet the needs of drivers and passengers; for example, mobile phone brackets, PDA brackets, small table brackets, rearview mirror brackets, etc. are installed; however, the fixation of brackets has become a problem in the industry, and there is a lack of a general-purpose multi-functional interface to realize the installation and fixation of different brackets. Summary of the Invention

[0003] In view of the above technical problems and disadvantages, the purpose of the utility model is to provide a function expansion interface that can be opened and closed by magnetic adsorption. The function expansion interface is opened and closed by magnetic attraction, ensuring that it is not easily opened in the non-use state to avoid misoperation.

[0004] To achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A function expansion interface that can be opened and closed by magnetic adsorption includes a magnetic adsorption interface installation bracket assembly, a magnetic adsorption function expansion interface, and an expandable bracket; wherein, a cavity for accommodating the expandable bracket is provided inside the magnetic adsorption interface installation bracket assembly; the magnetic adsorption function expansion interface includes a magnetic adsorption interface welding bracket assembly fixed on the magnetic adsorption interface installation bracket assembly and a magnetic adsorption interface flip cover assembly installed at the open end of the magnetic adsorption interface welding bracket assembly; the magnetic adsorption interface flip cover assembly can be turned inward relative to the magnetic adsorption interface welding bracket assembly, and includes a magnetic adsorption interface flip cover body, a magnet fixing bracket and a lock pin arranged inside the magnetic adsorption interface flip cover body; normally, the magnetic adsorption interface flip cover body is locked under the action of the lock pin; a magnet is provided on the magnet fixing bracket, and normally, an unlocking gap is reserved between the magnet fixing bracket and the magnetic adsorption interface flip cover body under the action of the magnet fixing bracket spring;

[0006] The expandable bracket passes through the magnetic adsorption function expansion interface and is fixed on the magnetic adsorption interface installation bracket assembly. An unlocking magnet is provided on the expandable bracket, and the unlocking magnet adsorbs to the magnet on the magnet fixing bracket, and the magnet fixing bracket is driven by magnetic force to approach the magnetic adsorption interface flip cover body to achieve unlocking.

[0007] As a preference of the present utility model, the magnetic interface mounting bracket assembly includes a magnetic interface mounting bracket, an extension bracket limiting bracket, an extension bracket limiting bracket rotating shaft, and an extension bracket limiting spring; wherein, the magnetic interface mounting bracket is fixed on the seat frame, and a chamber for accommodating the expandable bracket is provided inside, and through holes are provided on both sides of the chamber; the upper and lower ends of the extension bracket limiting bracket are arranged in the limiting grooves on both sides of the magnetic interface mounting bracket, and the extension bracket limiting bracket is installed and fixed on the magnetic interface mounting bracket through the extension bracket limiting bracket rotating shaft and the extension bracket limiting spring, and it can rotate relative to the magnetic interface mounting bracket; a clamping block is provided on the inner side of the extension bracket limiting bracket, and the clamping block passes through the through holes on both sides of the magnetic interface mounting bracket and extends into the chamber for clamping with the locking port on the expandable bracket.

[0008] As a preference of the present utility model, the magnetic adsorption function expansion interface is clamped with the magnetic interface mounting bracket assembly; the magnetic interface welding bracket assembly includes a magnetic interface welding bracket, a magnetic interface fixing plate, and a magnetic interface decorative plate; wherein, the magnetic interface welding bracket is connected with the magnetic interface mounting bracket assembly, the magnetic interface fixing plate is fixed at the open end of the magnetic interface welding bracket, an installation opening is provided on the magnetic interface fixing plate, a shaft bracket is provided above the installation opening on the inner side of the magnetic interface fixing plate, the magnetic interface decorative plate is fixed on the inner side of the magnetic interface fixing plate, and an avoidance notch is provided at the position of the magnetic interface decorative plate opposite to the installation opening; the magnetic interface flip cover assembly is arranged at the installation opening of the magnetic interface fixing plate, and a lock groove for cooperating with the lock pin is provided at the bottom of the magnetic interface decorative plate.

[0009] As a preference of the present utility model, the expandable bracket includes a bracket body, linkage lock mechanisms arranged on both sides of the bracket body, probes arranged at the bottom of the bracket body, and a cover assembly; wherein, the linkage lock mechanism includes a linkage rod, a locking button, and an unlocking button; the middle of the linkage rod is installed and fixed on the bracket body through a rotating shaft, a locking button is provided at one end of the linkage rod, and an unlocking button is provided at the other end, locking ports and unlocking ports are provided on the cover assembly at positions opposite to the locking button and the unlocking button, after the clamping block extending into the chamber passes through the locking port and extends into the cover assembly and drives the locking button, the unlocking button passes through the unlocking port and is exposed outside the cover assembly.

[0010] As a further preference of the present utility model, a power supply module is further provided on the magnetic interface mounting bracket, the power supply module is clamped on the magnetic interface mounting bracket in a clamping manner, a probe electrically connected to the power supply module is provided at the bottom of the chamber, and the probe is used for contacting and electrically connecting with the probe at the end of the expandable bracket to supply power to the electrical components inside the expandable bracket.

[0011] As a further preference of the present utility model, TPE pads are provided at both the upper and lower ends of the chamber of the magnetic interface mounting bracket, and the expandable bracket is disposed between the two TPE pads.

[0012] As a preference of the present utility model, the magnetic interface flip cover body is mounted and fixed on the magnetic interface fixing plate through a magnetic interface flip cover rotating shaft and a magnetic interface flip cover spring, and is rotatable relative to the magnetic interface fixing plate; under normal circumstances, the magnetic interface flip cover body is in a closed state under the action of the magnetic interface flip cover spring; a magnetic interface welding plate is provided on the inner side of the magnetic interface flip cover body, and the magnet fixing bracket is mounted and fixed on the magnetic interface welding plate through a magnet fixing bracket rotating shaft and a magnet fixing bracket spring, and is rotatable relative to the magnetic interface welding plate; under normal circumstances, the magnet fixing bracket is in an open state under the action of the magnet fixing bracket spring; a limiting block is provided on one side of the magnetic interface welding plate close to the magnet fixing bracket rotating shaft, and the limiting block is used to limit the maximum opening angle of the magnet fixing bracket to ensure that the magnet fixing bracket is always in contact with the locking pin.

[0013] As a further preference of the present utility model, the locking button and the unlocking button are mounted at both ends of the linkage rod through a rotating shaft, and limiting rods are provided at the bottoms of the locking button and the unlocking button, and the limiting rods are used to limit the range of rotation of the locking button and the unlocking button relative to the linkage rod.

[0014] As a further preference of the present utility model, a locking pin limiting assembly groove is provided at a position on the magnetic interface welding plate opposite to the locking groove, a locking pin track is provided on the inner side of the magnetic interface flip cover body, the locking pin is disposed between the magnet fixing bracket and the magnetic interface flip cover body and is mounted in the locking pin track, the upper end of the locking pin is mounted and fixed on the magnetic interface welding plate through a locking pin spring, and the lower end extends into the locking groove at the bottom of the magnetic interface decorative plate through the locking pin limiting assembly groove of the magnetic interface welding plate; a driving block is provided on one side of the locking pin facing the magnet fixing bracket, the bottom surface of the driving block is an inclined surface, a driving notch is provided at a position on the magnet fixing bracket opposite to the driving block, when the magnet fixing bracket rotates towards the magnetic interface flip cover body side, the driving notch pushes the driving block along the inclined surface of the bottom surface of the driving block, so that the locking pin moves upward and disengages from the locking groove to achieve unlocking.

[0015] As a further preference of the present utility model, mounting buckles are provided on both sides of the magnet fixing bracket, and the magnet is mounted and fixed at the mounting buckles of the magnet fixing bracket by a clamping method.

[0016] Advantages and beneficial effects of the present utility model:

[0017] (1) The functional expansion interface provided by the present utility model utilizes the unlocking magnet in the expandable bracket. Through magnetic attraction, the magnet fixes the bracket assembly to flip, thereby pushing the locking pin to move upward in the set track of the magnetic interface flip cover body, unlocking the magnetic interface flip cover assembly. The expandable bracket is fixed and installed by magnetically adsorbing the functional expansion interface into the magnetic interface mounting bracket assembly through magnetic force; the expansion interface is opened and closed by magnetic attraction, ensuring that it is not easily opened in the non-use state and avoiding misoperation.

[0018] (2) The locking magnet of the functional expansion interface provided by the present utility model involves N and S poles. Opposite poles attract and can be opened, while the same poles repel and cannot be opened. This method can ensure the correct installation direction of the expandable bracket and avoid installation errors.

[0019] (3) The present utility model provides more functional expansion requirements for customers. It can be expanded into functions such as a tabletop, a clothes hanger, a mobile phone or PAD bracket, etc. by improving the end structure of the expandable bracket.

[0020] (4) The magnetic interface mounting bracket of the present utility model injects a layer of TPE (thermoplastic elastomer) structure on the inner surface of the bracket through a two-color injection molding process, avoiding the risk of unnecessary abnormal noise generated after the expandable bracket is fixed; in addition, the expandable bracket is clamped on the magnetic interface mounting bracket assembly through the expansion bracket limiting bracket on the magnetic interface mounting bracket assembly, avoiding the detachment of the expandable bracket.

[0021] (5) The present utility model clamps the power supply module on the magnetic interface mounting bracket in a clamping form. The bottom of the chamber is provided with probes electrically connected to the power supply module, facilitating power supply to the electrical components inside the expandable bracket, thereby realizing functions such as wireless charging, and facilitating providing charging functions for mobile phones and PADs when used as a mobile phone or PAD bracket.

[0022] (6) The present utility model sets a linkage lock mechanism on both sides of the expandable bracket according to the seesaw principle. This mechanism can not only ensure the clamping between the expandable bracket and the magnetic interface mounting bracket assembly, but also facilitate unlocking, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic diagram of the overall structure of a functional expansion interface that can be opened and closed by magnetic attraction according to the present utility model;

[0025] Figure 2 Schematic diagram of the overall structure of the magnetic adsorption interface mounting bracket assembly of the present utility model Figure 1 ;

[0026] Figure 3 Schematic diagram of the overall structure of the magnetic adsorption interface mounting bracket assembly of the present utility model Figure 2 ;

[0027] Figure 4 Exploded view of the expansion bracket limit bracket, expansion bracket limit bracket rotating shaft, and expansion bracket limit spring of the present utility model;

[0028] Figure 5 Schematic diagram of the overall structure of the magnetic adsorption function expansion interface of the present utility model;

[0029] Figure 6 Exploded view of the magnetic adsorption function expansion interface of the present utility model;

[0030] Figure 7 Exploded view of the magnetic adsorption interface welding bracket assembly of the present utility model;

[0031] Figure 8 Installation diagram of the magnetic adsorption interface flip cover assembly of the present utility model (magnet fixing bracket not hidden);

[0032] Figure 9 Installation diagram of the magnetic adsorption interface flip cover assembly of the present utility model (magnet fixing bracket hidden);

[0033] Figure 10 Exploded view of the magnetic adsorption interface flip cover body, magnetic adsorption interface welding plate, and magnet fixing bracket of the present utility model;

[0034] Figure 11 Connection diagram of the magnetic adsorption interface flip cover body, magnetic adsorption interface welding plate, and magnet fixing bracket of the present utility model;

[0035] Figure 12 Schematic diagram of the overall structure of the expandable bracket of the present utility model;

[0036] Figure 13 Internal view of the expandable bracket of the present utility model.

[0037] Reference numerals: Magnetic adsorption interface mounting bracket assembly 1, Magnetic adsorption function expansion interface 2, Expandable bracket 3, Power supply module 4, Magnetic adsorption interface mounting bracket 11, Expansion bracket limit bracket 12, Expansion bracket limit bracket rotation shaft 13, Expansion bracket limit spring 14, Probe 15, TPE pad 16, Magnetic adsorption interface welding bracket assembly 21, Magnetic adsorption interface flip cover assembly 22, Bracket body 31, Probe 32, Cover assembly 33, Linkage rod 34, Locking button 35, Unlocking button 36, Limiting rod 37, Limiting groove 11-1, Clamping block 12-1, Magnetic adsorption interface welding bracket 21-1, Magnetic adsorption interface fixing plate 21-2, Magnetic adsorption interface decorative plate 21-3, Magnetic adsorption interface flip cover body 22-1, Magnetic adsorption interface welding plate 22-2, Magnet fixing bracket 22-3, Magnet 22-4, Magnet fixing bracket spring 22-5, Magnet fixing bracket rotation shaft 22-6, Lock pin 22-7, Lock pin spring 22-8, Magnetic adsorption interface flip cover rotation shaft 22-9, Magnetic adsorption interface flip cover spring 22-10, Locking port 33-1, Unlocking port 33-2, Shaft bracket 21-2-1,, Lock groove 21-3-1 Lock pin track 22-1-1, Limiting block 22-2-1, Lock pin limiting assembly groove 22-2-2, Installation bayonet 22-3-1, Driving notch 22-3-2, Driving block 22-7-1. Detailed implementation manners

[0038] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0039] In the description of the present application, it should also be noted that, unless otherwise clearly defined and limited, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components. 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.

[0040] As Figures 1 to 13As shown in the figure, this embodiment provides a function expansion interface that can be opened and closed by magnetic adsorption, including a magnetic adsorption interface mounting bracket assembly 1, a magnetic adsorption function expansion interface 2, and an expandable bracket 3. Among them, a chamber A for accommodating the expandable bracket 3 is provided inside the magnetic adsorption interface mounting bracket assembly 1. The magnetic adsorption function expansion interface 2 includes a magnetic adsorption interface welding bracket assembly 21 fixed on the magnetic adsorption interface mounting bracket assembly 1 and a magnetic adsorption interface flip cover assembly 22 installed at the open end of the magnetic adsorption interface welding bracket assembly 21. The magnetic adsorption interface flip cover assembly 22 can be flipped inward relative to the magnetic adsorption interface welding bracket assembly 21, and includes a magnetic adsorption interface flip cover body 22-1, a magnet fixing bracket 22-3, and a locking pin 22-7 provided on the inner side of the magnetic adsorption interface flip cover body 22-1. Under normal circumstances, the magnetic adsorption interface flip cover body 22-1 is locked under the action of the locking pin 22-7. A magnet 22-4 is provided on the magnet fixing bracket 22-3. Under normal circumstances, a unlocking gap is reserved between the magnet fixing bracket 22-3 and the magnetic adsorption interface flip cover body 22-1 under the action of the magnet fixing bracket spring 22-5.

[0041] The expandable bracket 3 passes through the magnetic adsorption function expansion interface 2 and is fixed on the magnetic adsorption interface mounting bracket assembly 1. An unlocking magnet (not shown) is provided on the expandable bracket 3, and the unlocking magnet adsorbs to the magnet 22-4 on the magnet fixing bracket 22-3, and the magnet fixing bracket 22-3 is driven by the magnetic force to approach the magnetic adsorption interface flip cover body 22-1 to achieve unlocking.

[0042] Further, as Figures 1 to 4 shown, in this embodiment, the magnetic adsorption interface mounting bracket assembly 1 includes a magnetic adsorption interface mounting bracket 11, an expandable bracket limiting bracket 12, an expandable bracket limiting bracket rotating shaft 13, and an expandable bracket limiting spring 14. Among them, the magnetic adsorption interface mounting bracket 11 is fixed on the seat frame, and a chamber A for accommodating the expandable bracket 3 is provided inside. Through holes (not marked) are provided on both sides of the chamber A. The upper and lower ends of the expandable bracket limiting bracket 12 are arranged in the limiting grooves 11-1 on both sides of the magnetic adsorption interface mounting bracket 11. The expandable bracket limiting bracket 12 is installed and fixed on the magnetic adsorption interface mounting bracket 11 through the expandable bracket limiting bracket rotating shaft 13 and the expandable bracket limiting spring 14, and can rotate outward relative to the magnetic adsorption interface mounting bracket 11. A clamping block 12-1 is provided on the inner side of the expandable bracket limiting bracket 12. The clamping block 12-1 passes through the through holes on both sides of the magnetic adsorption interface mounting bracket 11 and extends into the chamber A to be used for clamping with the locking port on the expandable bracket 3.

[0043] Continue as Figures 1 to 4As shown, in this embodiment, a power supply module 4 is further provided on the magnetic interface mounting bracket 11. The power supply module 4 is clamped on the magnetic interface mounting bracket 11 in a clamping manner. A probe 15 electrically connected to the power supply module 4 is provided at the bottom of the chamber A. The probe 15 is used to contact and electrically connect with the probe at the end of the expandable bracket 3, and is used to supply power to the electrical components inside the expandable bracket 3.

[0044] Furthermore, in this embodiment, TPE pads 16 are provided at both the upper and lower ends of the chamber A of the magnetic interface mounting bracket. The expandable bracket 3 is arranged between the two TPE pads 16. Specifically, the TPE pads 16 are arranged on the inner surface of the magnetic interface mounting bracket by a two-color injection molding process to avoid unnecessary abnormal noise risks after the expandable bracket 3 is fixed.

[0045] Further, as Figures 5 to 11 shown, in this embodiment, the magnetic force adsorption function expansion interface 2 is clamped on the magnetic interface mounting bracket assembly 1 in a clamping manner. The magnetic interface welding bracket assembly 21 includes a magnetic interface welding bracket 21-1, a magnetic interface fixing plate 21-2, and a magnetic interface decorative plate 21-3. Among them, the magnetic interface welding bracket 21-1 is clamped with the magnetic interface mounting bracket assembly 1. The magnetic interface fixing plate 21-2 is fixed at the open end of the magnetic interface welding bracket 21-1. An installation opening (not marked) is provided on the magnetic interface fixing plate 21-2. A shaft bracket 21-2-1 is provided above the installation opening on the inner side of the magnetic interface fixing plate 21-2. The magnetic interface decorative plate 21-3 is fixed on the inner side of the magnetic interface fixing plate 21-2 by welding. An avoidance notch (not marked) is provided at the position of the magnetic interface decorative plate 21-3 opposite to the installation opening. The magnetic interface flip cover assembly 22 is arranged at the installation opening of the magnetic interface fixing plate 21-2. A lock groove 21-3-1 for cooperating with the lock pin is provided at the bottom of the magnetic interface decorative plate 21-3.

[0046] Continue as Figures 5 to 11As shown, in this embodiment, the magnetic interface flip cover body 22-1 is installed and fixed on the magnetic interface fixing plate 21-2 through the magnetic interface flip cover rotating shaft 22-9 and the magnetic interface flip cover spring 22-10, and it can rotate relative to the magnetic interface fixing plate 21-2; under normal circumstances, the magnetic interface flip cover body 22-1 is in a closed state under the action of the magnetic interface flip cover spring 22-10; the inner side of the magnetic interface flip cover body 22-1 is provided with a magnetic interface welding plate 22-2, and the magnet fixing bracket 22-3 is fixed by the magnet fixing bracket rotating shaft 22-6 The magnet fixing bracket spring 22-5 is installed and fixed on the magnetic interface welding plate 22-2, and can rotate relative to the magnetic interface welding plate 22-2; under normal circumstances, the magnet fixing bracket 22-3 is in an open state under the action of the magnet fixing bracket spring 22-5; the magnetic interface welding plate 22-2 is provided with a limit block 22-2-1 on the side close to the magnet fixing bracket rotation axis 22-6, and the limit block 22-2-1 is used to limit the maximum opening angle of the magnet fixing bracket 22-3 to ensure that the magnet fixing bracket 22-3 is always in contact with the locking pin 22-7.

[0047] Furthermore, in this embodiment, mounting snap-fits 22 - 3 - 1 are provided on both sides of the magnet fixing bracket 22 - 3 , and the magnet 22 - 4 is mounted and fixed at the mounting snap-fits 22 - 3 - 1 of the magnet fixing bracket 22 - 3 by snapping.

[0048] Furthermore, in this embodiment, the magnetic interface welding plate 22-2 is welded to the magnetic interface flip cover body 22-1 by welding, and a lock pin limiting assembly groove 22-2-2 is provided on the magnetic interface welding plate 22-2 at a position opposite to the lock groove 21-3-1, and a lock pin track 22-1-1 is provided on the inner side of the magnetic interface flip cover body 22-1, and the lock pin 22-7 is arranged between the magnet fixing bracket 22-3 and the magnetic interface flip cover body 22-1 and installed in the lock pin track 22-1-1, and the upper end of the lock pin 22-7 is fixed to the magnetic interface welding plate 22-2 by a lock pin spring 22-8, and the lower end passes through the lock of the magnetic interface welding plate. The pin limit assembly groove 22-2-2 extends into the lock groove 21-3-1 at the bottom of the magnetic interface decorative plate 21-3; the lock pin 22-7 is provided with a drive block 22-7-1 on the side facing the magnet fixing bracket, and the bottom surface of the drive block 22-7-1 is an inclined surface. The magnet fixing bracket 22-3 is provided with a drive notch 22-3-2 at a position opposite to the drive block 22-7-1. When the magnet fixing bracket 22-3 rotates toward the side of the magnetic interface flip cover body 22-1, the drive notch 22-3-2 pushes the drive block 22-3-2 along the inclined surface of the bottom surface of the drive block 22-3-2, so that the lock pin 22-7 moves upward and disengages from the lock groove 21-3-1 to achieve unlocking.

[0049] Further, if Figure 12, Figure 13 As shown in Figure 13 , in this embodiment, the expandable bracket 3 includes a bracket body 31, linkage lock mechanisms arranged on both sides of the bracket body, a probe 32 arranged at the bottom of the bracket body, and a cover assembly 33. Among them, the linkage lock mechanism adopts the seesaw principle and includes a linkage rod 34, a locking button 35, and an unlocking button 36. The middle of the linkage rod 34 is fixedly installed on the bracket body 31 through a rotating shaft. One end of the linkage rod 34 is provided with a locking button 35, and the other end is provided with an unlocking button 36. The cover assembly 33 is provided with a locking port 33-1 and an unlocking port 33-2 at positions opposite to the locking button 35 and the unlocking button 36. When the expandable bracket 3 is inserted into the magnetic attraction interface and installed in the bracket assembly, the clamping block 12-1 extending into the chamber A passes through the locking port 33-1 and extends into the cover assembly to realize the fixation of the expandable bracket 3. At the same time, the locking button 35 drives (presses) the linkage rod 34, so that the unlocking button 36 passes through the unlocking port and is exposed outside the cover assembly 33. When it is necessary to unlock and remove the expandable bracket 3, press the unlocking button 36. At this time, under the action of the linkage rod 34, the locking button 35 pushes out the clamping block 12-1 and realizes unlocking, so as to facilitate the removal of the expandable bracket 3, and the operation is simple and convenient.

[0050] Specifically, the locking button 35 and the unlocking button 36 are installed at both ends of the linkage rod 34 through a rotating shaft, and the bottom of the locking button and the unlocking button is provided with a limiting rod 37, and the limiting rod 37 is used to limit the rotation range of the locking button 35 and the unlocking button 36 relative to the linkage rod 34.

[0051] The above are the specific implementation manners of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A function expansion interface that can be opened and closed by magnetic adsorption, characterized in that: It includes a magnetic interface mounting bracket assembly, a magnetic adsorption function expansion interface, and an expandable bracket; wherein, a chamber for accommodating the expandable bracket is provided inside the magnetic interface mounting bracket assembly; the magnetic adsorption function expansion interface includes a magnetic interface welding bracket assembly fixed on the magnetic interface mounting bracket assembly, and a magnetic interface flip cover assembly installed at the open end of the magnetic interface welding bracket assembly; the magnetic interface flip cover assembly can be flipped inward relative to the magnetic interface welding bracket assembly, and includes a magnetic interface flip cover body and a magnet fixing bracket and a locking pin arranged on the inner side of the magnetic interface flip cover body; under normal circumstances, the magnetic interface flip cover body is locked under the action of the locking pin; a magnet is provided on the magnet fixing bracket, and under normal circumstances, an unlocking gap is reserved between the magnet fixing bracket and the magnetic interface flip cover body under the action of the magnet fixing bracket spring; The expandable bracket is fixed on the magnetic interface mounting bracket assembly through the magnetic adsorption function expansion interface. The expandable bracket is provided with an unlocking magnet. The unlocking magnet is adsorbed by the magnet on the magnet fixing bracket, and the magnet fixing bracket is driven by magnetic force to approach the magnetic interface flip cover body and realize unlocking.

2. The function expansion interface that can be opened and closed by magnetic adsorption according to claim 1, characterized in that: The magnetic interface mounting bracket assembly includes a magnetic interface mounting bracket, an expansion bracket limiting bracket, an expansion bracket limiting bracket rotating shaft, and an expansion bracket limiting spring; wherein, the magnetic interface mounting bracket is fixed on the seat frame, and a chamber for accommodating the expandable bracket is provided inside, and through holes are provided on both sides of the chamber; the upper and lower ends of the expansion bracket limiting bracket are arranged in the limiting grooves on both sides of the magnetic interface mounting bracket, and the expansion bracket limiting bracket is installed and fixed on the magnetic interface mounting bracket by the expansion bracket limiting bracket rotating shaft and the expansion bracket limiting spring, and it can rotate relative to the magnetic interface mounting bracket; a clamping block is provided on the inner side of the expansion bracket limiting bracket, and the clamping block passes through the through holes on both sides of the magnetic interface mounting bracket and extends into the chamber, and is used to realize clamping with the locking port on the expandable bracket.

3. The function expansion interface that can be opened and closed by magnetic adsorption according to claim 1, characterized in that: The magnetic adsorption function expansion interface is snap-connected with the magnetic interface mounting bracket assembly; the magnetic interface welding bracket assembly includes a magnetic interface welding bracket, a magnetic interface fixing plate, and a magnetic interface decorative plate; wherein, the magnetic interface welding bracket is connected to the magnetic interface mounting bracket assembly, the magnetic interface fixing plate is fixed to the open end of the magnetic interface welding bracket, a mounting port is provided on the magnetic interface fixing plate, an axis frame is provided on the inner side of the magnetic interface fixing plate above the mounting port, the magnetic interface decorative plate is fixed to the inner side of the magnetic interface fixing plate, and an avoidance notch is provided on the magnetic interface decorative plate at a position opposite to the mounting port; the magnetic interface flip cover assembly is arranged at the mounting port of the magnetic interface fixing plate, and a lock groove cooperating with a lock pin is provided on the bottom of the magnetic interface decorative plate.

4. The function expansion interface that can be opened and closed by magnetic adsorption according to claim 1, characterized in that: The expandable bracket includes a bracket body, a linkage lock mechanism arranged on both sides of the bracket body, a probe arranged at the bottom of the bracket body, and a cover assembly; wherein the linkage lock mechanism includes a linkage rod, a locking button, and an unlocking button; the middle of the linkage rod is fixed to the bracket body through a rotating shaft, one end of the linkage rod is provided with a locking button, and the other end is provided with an unlocking button, and the cover assembly is provided with a locking port and an unlocking port at a position opposite to the locking button and the unlocking button, and after the clamping block extending into the chamber passes through the locking port and extends into the cover assembly and drives the locking button, the unlocking button passes through the unlocking port and leaks out to the outside of the cover assembly.

5. The function expansion interface that can be opened and closed by magnetic adsorption according to claim 2, characterized in that: The magnetic interface mounting bracket is also provided with a power supply module, which is clamped on the magnetic interface mounting bracket by a snap-on form. A probe electrically connected to the power supply module is provided at the bottom of the chamber. The probe is used to contact and electrically connect with the probe at the end of the expandable bracket, so as to power the electrical components inside the expandable bracket.

6. The function expansion interface that can be opened and closed by magnetic adsorption according to claim 2, characterized in that: TPE pads are provided at the upper and lower ends of the magnetic interface mounting bracket chamber, and the expandable bracket is arranged between the two TPE pads.

7. The function expansion interface that can be opened and closed by magnetic adsorption according to claim 3, characterized in that: The magnetic interface flip cover body is installed and fixed on the magnetic interface fixing plate through the magnetic interface flip cover rotating axis and the magnetic interface flip cover spring, and it can rotate relative to the magnetic interface fixing plate; under normal circumstances, the magnetic interface flip cover body is in a closed state under the action of the magnetic interface flip cover spring; a magnetic interface welding plate is provided on the inner side of the magnetic interface flip cover body, and the magnet fixing bracket is installed and fixed on the magnetic interface welding plate through the magnet fixing bracket rotating axis and the magnet fixing bracket spring, and it can rotate relative to the magnetic interface welding plate; under normal circumstances, the magnet fixing bracket is in an open state under the action of the magnet fixing bracket spring; the magnetic interface welding plate is provided with a limit block on the side close to the magnet fixing bracket rotating axis, and the limit block is used to limit the maximum opening angle of the magnet fixing bracket to ensure that the magnet fixing bracket is always in contact with the locking pin.

8. The function expansion interface that can be opened and closed by magnetic adsorption according to claim 4, characterized in that: The locking button and the unlocking button are installed at both ends of the linkage rod through a rotating shaft, and a limiting rod is provided at the bottom of the locking button and the unlocking button, and the limiting rod is used to limit the rotation range of the locking button and the unlocking button relative to the linkage rod.

9. The function expansion interface that can be opened and closed by magnetic adsorption according to claim 7, characterized in that: A lock pin limiting assembly groove is provided on the magnetic interface welding plate at a position opposite to the lock groove, and a lock pin track is provided on the inner side of the magnetic interface flip cover body, and the lock pin is arranged between the magnet fixing bracket and the magnetic interface flip cover body and is installed in the lock pin track, the upper end of the lock pin is installed and fixed on the magnetic interface welding plate through a lock pin spring, and the lower end passes through the lock pin limiting assembly groove of the magnetic interface welding plate and extends into the lock groove at the bottom of the magnetic interface decorative plate; a drive block is provided on the lock pin on the side facing the magnet fixing bracket, and the bottom surface of the drive block is an inclined surface, and a drive notch is provided on the magnet fixing bracket at a position opposite to the drive block, and when the magnet fixing bracket rotates toward the side of the magnetic interface flip cover body, the drive notch pushes the drive block along the inclined surface of the bottom surface of the drive block, so that the lock pin moves upward and disengages from the lock groove, thereby achieving unlocking.

10. The function expansion interface that can be opened and closed by magnetic adsorption according to claim 7, characterized in that: The magnet fixing bracket is provided with mounting bayonet holes on both sides, and the magnet is mounted and fixed at the mounting bayonet holes of the magnet fixing bracket by means of a snap connection.

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