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

Abstract

The invention relates to a function expansion interface capable of being opened and closed through magnetic adsorption. The function expansion interface comprises a magnetic adsorption interface mounting bracket assembly, a magnetic adsorption 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 invention belongs to the field of automobiles, and in particular relates to a function expansion interface that can be opened and closed by magnetic adsorption. Background Art

[0002] Various brackets are usually installed in existing cars to meet the needs of drivers and passengers, such as mobile phone brackets, PDA brackets, small table brackets, rearview mirror brackets, etc. However, the fixation of the brackets has become a difficult problem in the industry, and there is a lack of a universal multi-functional interface to achieve the installation and fixation of different brackets. Summary of the invention

[0003] In view of the above-mentioned technical problems and shortcomings, the object of the present invention is to provide a function expansion interface that can be opened and closed by magnetic adsorption. The function expansion interface opens and closes by magnetic attraction to ensure that it is not easy to open when not in use, thereby avoiding misoperation.

[0004] To achieve the above object, the present invention adopts the following technical solution:

[0005] A functional expansion interface that can be opened and closed by magnetic adsorption, comprising a magnetic interface mounting bracket assembly, a magnetic adsorption functional expansion interface, and an expandable bracket; wherein the interior of the magnetic interface mounting bracket assembly is provided with a chamber for accommodating the expandable bracket; the magnetic adsorption functional expansion interface comprises a magnetic interface welding bracket assembly fixed on the magnetic interface mounting bracket assembly, and a magnetic interface flip cover assembly installed on 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 comprises 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 a magnet fixing bracket spring;

[0006] 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.

[0007] As a preferred embodiment of the present invention, 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 is provided with a chamber for accommodating the expandable bracket 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 through 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.

[0008] As a preferred embodiment of the present invention, 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 the magnetic interface decorative plate is provided with an avoidance notch 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 at the bottom of the magnetic interface decorative plate.

[0009] As a preferred embodiment of the present invention, 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.

[0010] As a further preferred embodiment of the present invention, a power supply module is also provided on the magnetic interface mounting bracket, and the power supply module 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, and 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 devices inside the expandable bracket.

[0011] As a further preferred embodiment of the present invention, TPE pads are provided at the upper and lower ends of the chamber of the magnetic interface mounting bracket, and the expandable bracket is arranged between the two TPE pads.

[0012] As a preferred embodiment of the present invention, 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.

[0013] As a further preferred embodiment of the present invention, the locking button and the unlocking button are installed at both ends of the linkage rod through a rotating shaft, and a limit rod is provided at the bottom of the locking button and the unlocking button, and the limit rod is used to limit the rotation range of the locking button and the unlocking button relative to the linkage rod.

[0014] As a further preferred embodiment of the present invention, a lock pin limiting assembly groove is provided on the magnetic interface welding plate at a position opposite to the lock groove, a lock pin track is provided on the inner side of the magnetic interface flip cover body, 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 fixed to 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, 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, 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.

[0015] As a further preferred embodiment of the present invention, mounting bayonet holes are provided on both sides of the magnet fixing bracket, and the magnet is mounted and fixed at the mounting bayonet holes of the magnet fixing bracket by snapping.

[0016] Advantages and beneficial effects of the present invention:

[0017] (1) The function expansion interface provided by the present invention uses the unlocking magnet in the expandable bracket to flip the magnet fixing bracket assembly through magnetic attraction, thereby pushing the locking pin to move up in the set track of the magnetic interface flip cover body, unlocking the magnetic interface flip cover assembly, and the expandable bracket is inserted into the magnetic interface mounting bracket assembly through magnetic adsorption of the function expansion interface, thereby completing the fixed installation of the expandable bracket; the expansion interface is opened and closed by magnetic attraction, ensuring that it is not easy to open when not in use to avoid misoperation.

[0018] (2) The locking magnets of the function expansion interface provided by the present invention involve N and S poles. The attraction of opposite poles can be turned on, but the repulsion of the same poles cannot be turned on. This method can ensure the forward and reverse installation of the expandable bracket and avoid installation errors.

[0019] (3) The present invention provides customers with more functional expansion needs, and can be expanded to functions such as a table top, clothes hanger, mobile phone or PAD holder, etc. by improving the end structure of the expandable bracket.

[0020] (4) The magnetic interface mounting bracket of the present invention uses a two-color injection molding process to inject a layer of TPE (thermoplastic elastomer) structure on the inner surface of the bracket, thereby avoiding the risk of unnecessary abnormal noise after the expandable bracket is fixed; in addition, the expandable bracket is connected to the magnetic interface mounting bracket assembly through the expansion bracket limit bracket on the magnetic interface mounting bracket assembly, thereby avoiding the expandable bracket from falling off.

[0021] (5) The present invention clamps the power supply module on the magnetic interface mounting bracket by means of a snap-on connection. A probe electrically connected to the power supply module is provided at the bottom of the chamber, which is convenient for powering the electrical components inside the expandable bracket, thereby realizing functions such as wireless charging, and providing charging functions for mobile phones and PADs when used as a mobile phone or PAD bracket.

[0022] (6) The present invention sets a linkage lock mechanism on both sides of the expandable bracket according to the seesaw principle. The mechanism can not only ensure the card connection 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 invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 This is a schematic diagram of the overall structure of a function expansion interface that can be opened and closed by magnetic adsorption according to the present invention;

[0025] Figure 2The overall structure of the magnetic interface mounting bracket assembly of the present invention is shown in FIG. Figure 1 ;

[0026] Figure 3 The overall structure of the magnetic interface mounting bracket assembly of the present invention is shown in FIG. Figure 2 ;

[0027] Figure 4 It is an exploded schematic diagram of the expansion bracket limiting bracket, the expansion bracket limiting bracket rotating shaft, and the expansion bracket limiting spring of the present invention;

[0028] Figure 5 This is a schematic diagram of the overall structure of the magnetic adsorption function expansion interface of the present invention;

[0029] Figure 6 This is a schematic diagram of the decomposition of the magnetic adsorption function expansion interface of the present invention;

[0030] Figure 7 It is an exploded schematic diagram of the magnetic interface welding bracket assembly of the present invention;

[0031] Figure 8 This is a schematic diagram of the installation of the magnetic interface flip cover assembly of the present invention (the magnet fixing bracket is not hidden);

[0032] Fig. 9 This is a schematic diagram of the installation of the magnetic interface flip cover assembly of the present invention (with a hidden magnet fixing bracket);

[0033] Fig.10 It is an exploded schematic diagram of the magnetic interface flip cover body, the magnetic interface welding plate, and the magnet fixing bracket of the present invention;

[0034] Fig.11 It is a connection diagram of the magnetic interface flip cover body, the magnetic interface welding plate, and the magnet fixing bracket of the present invention;

[0035] Fig.12 It is a schematic diagram of the overall structure of the expandable bracket of the present invention;

[0036] Fig.13 It is a schematic diagram of the interior of the expandable support of the present invention.

[0037] Figure numerals: magnetic interface mounting bracket assembly 1, magnetic adsorption function expansion interface 2, expandable bracket 3, power supply module 4, magnetic interface mounting bracket 11, expansion bracket limiting bracket 12, expansion bracket limiting bracket rotating shaft 13, expansion bracket limiting spring 14, probe 15, TPE pad 16, magnetic interface welding bracket assembly 21, magnetic 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 interface welding bracket 21-1, magnetic interface fixing plate 21-2, magnetic interface decorative plate 2 1-3, magnetic interface flip cover body 22-1, magnetic interface welding plate 22-2, magnet fixing bracket 22-3, magnet 22-4, magnet fixing bracket spring 22-5, magnet fixing bracket rotating shaft 22-6, locking pin 22-7, locking pin spring 22-8, magnetic interface flip cover rotating shaft 22-9, magnetic interface flip cover spring 22-10, locking port 33-1, unlocking port 33-2, shaft frame 21-2-1, locking slot 21-3-1 locking pin track 22-1-1, limit block 22-2-1, locking pin limit assembly slot 22-2-2, installation bayonet 22-3-1, driving notch 22-3-2, driving block 22-7-1. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0039] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" 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, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

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

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

[0042] Further, if Figures 1 to 4 As shown, in this embodiment, the magnetic interface mounting bracket assembly 1 includes a magnetic interface mounting bracket 11, an expansion bracket limiting bracket 12, an expansion bracket limiting bracket rotating shaft 13, and an expansion bracket limiting spring 14; wherein, the magnetic interface mounting bracket 11 is fixed on the seat frame, and is provided with a chamber A for accommodating the expandable bracket 3 inside, and through holes (not marked) are provided on both sides of the chamber A; the upper and lower ends of the expansion bracket limiting bracket 12 are arranged in the limiting grooves 11-1 on both sides of the magnetic interface mounting bracket 11, and the expansion bracket limiting bracket 12 is installed and fixed on the magnetic interface mounting bracket 11 through the expansion bracket limiting bracket rotating shaft 13 and the expansion bracket limiting spring 14, and it can rotate outward relative to the magnetic interface mounting bracket 11; a clamping block 12-1 is provided on the inner side of the expansion bracket limiting bracket 12, and the clamping block 12-1 passes through the through holes on both sides of the magnetic interface mounting bracket 11 and extends into the chamber A, and is used to realize 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 also provided on the magnetic interface mounting bracket 11, and the power supply module 4 is clamped on the magnetic interface mounting bracket 11 by a snap-on form. A probe 15 electrically connected to the power supply module 4 is provided at the bottom of the chamber A, and the probe 15 is used to contact and electrically connect with the probe at the end of the expandable bracket 3, so as to power the electrical components inside the expandable bracket 3.

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

[0045] Further, if Figures 5 to 11 As shown, in this embodiment, the magnetic attraction function expansion interface 2 is clamped on the magnetic interface mounting bracket assembly 1 by a clamping form; 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; wherein, 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 to the open end of the magnetic interface welding bracket 21-1, and the magnetic interface fixing plate 21-2 is provided There is an installation opening (unmarked), and an axle frame 21-2-1 is provided on the inner side of the magnetic interface fixing plate 21-2 above the installation opening. The magnetic interface decorative plate 21-3 is fixed to the inner side of the magnetic interface fixing plate 21-2 by welding, and the magnetic interface decorative plate 21-3 is provided with an avoidance notch (unmarked) at a position 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, and a lock groove 21-3-1 cooperating with a 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 Fig.12, Fig.13 As shown, in this embodiment, the expandable bracket 3 includes a bracket body 31, a linkage lock mechanism arranged on both sides of the bracket body, a probe 32 arranged at the bottom of the bracket body, and a cover assembly 33; wherein the linkage lock mechanism adopts a seesaw principle, including a linkage rod 34, a locking button 35, and an unlocking button 36; the middle of the linkage rod 34 is fixed to 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, and the cover assembly 33 is provided with a locking port 33-1, an unlocking port 33-2, and a locking port 33-3 at a position opposite to the locking button 35 and the unlocking button 36. Locking mouth 33-2, when the expandable bracket 3 is inserted into the magnetic interface mounting bracket assembly, the card block 12-1 extending into the chamber A passes through the locking mouth 33-1 and extends into the cover assembly to fix the expandable bracket 3. At the same time, the locking button 35 drives (presses) the linkage rod 34 to make the unlocking button 36 pass through the unlocking mouth and leak out to the outside of 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 the card block 12-1 out and unlocks it, thereby facilitating the removal of the expandable bracket 3. 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 a limit rod 37 is provided at the bottom of the locking button and the unlocking button. The limit 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 specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on 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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