A built-in charger

Abstract

The present application discloses an embedded charger, which relates to the technical field of chargers. The present application includes: a plug-in charger, one side of the plug-in charger is constructed with a cylindrical exposed protrusion, and a plurality of storage slots are provided in a circular array on the end face of the exposed protrusion; a moving block, the number of the moving blocks is multiple and they are respectively located in a plurality of storage slots, and one side of the moving block is installed with an electrical socket; a driving mechanism, including a pressing piece installed on the moving block. In the present application, when the electrical socket is not in use, the moving block is located in the storage slot, which can effectively prevent the electrical socket from being damaged by external dust and external bumps. When one of the electrical sockets needs to be used, the pressing piece can be pressed at this time, and the pressing piece cooperates with the transmission piece to drive one of the moving blocks to be located outside, so that the electrical socket is located outside for charging, and the moving block can be moved to the storage slot after use.

Description

Technical Field

[0001] The present application relates to the technical field of chargers, and in particular to an embedded charger. Background Art

[0002] In contemporary society, with the widespread use of smartphones and other mobile devices, car chargers have become an indispensable accessory in cars. They provide drivers and passengers with a convenient charging solution to ensure the continued use of devices during travel. However, despite the growing importance of car chargers, existing designs are still insufficient in some aspects, especially in terms of protection of the charging port and the overall aesthetics of the device.

[0003] The design of traditional car chargers usually includes an exposed USB port, which is exposed after being plugged into the vehicle's cigarette lighter socket. Although this design is convenient for connecting mobile devices, it brings a series of problems. First, the exposed USB port is prone to accumulate dust and dirt, which not only affects its cleanliness but may also damage the electrical performance. In addition, the exposed circuit interface is easily damaged by external factors. Long-term exposure not only increases the risk of physical damage to the interface, such as scratches and impacts, but also affects charging efficiency and device safety.

[0004] Therefore, the present invention proposes an embedded charger. Summary of the invention

[0005] The purpose of this application is to solve the problems in the above-mentioned background technology, and this application provides an embedded charger.

[0006] In order to achieve the above-mentioned purpose, this application specifically adopts the following technical solutions:

[0007] An embedded charger, comprising:

[0008] A plug-in charger, wherein a cylindrical exposed protrusion is constructed on one side of the plug-in charger, and a plurality of storage slots are provided in a circular array on the end surface of the exposed protrusion;

[0009] A moving block, wherein the moving blocks are in plurality and respectively located in a plurality of storage slots, and an electrical socket is installed on one side of the moving block;

[0010] The driving mechanism includes a pressing member installed on the moving block, and a transmission member acting on the pressing member and the moving block is installed inside the plug-in charger. When the pressing member is pressed, the transmission member drives one of the moving blocks to move from the storage slot to the exposed end face of the protruding block;

[0011] When the moving block moves to the end face of the exposed protrusion, the corresponding electrical socket is located outside the exposed protrusion; when the moving block is located in the storage slot, the side of the moving block equipped with the electrical socket fits the storage slot.

[0012] Furthermore, a movable ring groove is provided on the outer circumference of the movable block, and a plurality of limit slots are provided in a circular array at one end of the movable ring groove facing the plug-in charger, and the pressing member includes an adjusting ring movably and rotatably mounted on the outer circumference of the exposed protrusion, and a limit block for moving in the movable ring groove and the limit slot is constructed on the inner circumference of the adjusting ring, and a pointer is constructed on the outer circumference of the adjusting ring, and an inner ring groove is provided in an annular shape on the inner circumference of the adjusting ring, and a toggle rod is horizontally constructed on the inner circumference of the inner ring groove and opposite to the pointer, and the transmission member acts on the toggle rod, and when the limit block moves into one of the limit slots, the toggle rod is used to drive the transmission member to move one of the movable blocks to the outside of the storage slot.

[0013] Furthermore, slide grooves are provided on opposite sides of the storage groove, a push rod is vertically slidably inserted in the slide groove, one corner of the moving block is rotatably installed between the two push rod ends, a push spring is installed between the push rod and the slide groove, and when the moving block moves into the storage groove, the transmission member limits the position of the moving block.

[0014] Furthermore, the transmission member includes a positioning block horizontally slidably installed in the exposed protrusion, a positioning groove for inserting the positioning block is provided on the moving block, a reset spring is installed between the positioning block and the inside of the exposed protrusion, a driving block is horizontally slidably installed in the exposed protrusion, an inclined groove is provided on the driving block, a rod body is constructed on the positioning block and is tangent to the inclined groove, a forcing inclined surface is constructed on the side of the driving block away from the positioning block, and the toggle rod is used to contact the forcing inclined surface.

[0015] Furthermore, a power rod is slidably inserted into the bottom end of the storage slot along its length direction, a driving spring is installed between the power rod and the inside of the plug-in charger, and a transmission rod is hinged between the power rod and the moving block.

[0016] Furthermore, one side of the positioning block facing the central axis of the exposed protrusion is located in the storage slot and is an inclined surface, and the inclined surface faces the opening of the storage slot, and the positioning slot is triangular.

[0017] Furthermore, the number of the moving blocks is three, and two toggle sub-rods are installed horizontally and slidingly inside the adjusting ring. The two toggle sub-rods and the toggle rod are distributed in a circular array around the axis of the adjusting ring. The sliding direction of the toggle sub-rod is toward the center of the adjusting ring. An adjusting member for driving the toggle sub-rod to move is installed on the adjusting ring, and the toggle sub-rod is used to force contact with the inclined surface.

[0018] Furthermore, the adjusting member includes an arc plate slidably installed inside the adjusting ring, the arc plate is coaxial with the adjusting ring, a rebound spring is installed between the toggle sub-rod and the adjusting ring, two push blocks with inclined tops are constructed on the arc plate, a side of the toggle sub-rod away from the adjusting ring is an inclined surface for contacting the inclined surface of the push block, and a pressing assembly for driving the arc plate to move is installed on the adjusting ring.

[0019] Furthermore, mounting grooves are provided on the inner and outer circumferential sides of the adjustment ring, the pressing member includes a driving plate slidably installed in the mounting groove, a U-shaped spring plate is installed between the driving plate and the mounting groove, an actuator rod is constructed on the side of the driving plate facing the axis of the adjustment ring, the side of the arc plate away from the opening of the storage slot is an inclined surface, the actuator rod is used to contact the inclined surface of the arc plate, and the pointer and the driving plate are distributed opposite to each other on the adjustment ring.

[0020] Furthermore, a positioning rod with an outer arc surface at one end is horizontally slidably installed on the limit block, three positioning arc holes are opened in the movable ring groove, a connecting spring is installed between the positioning rod and the inside of the limit block, and the three positioning arc holes are all located above the limit slot.

[0021] The beneficial effects of this application are as follows:

[0022] 1. When the electrical socket is not in use, the movable block is located in the storage slot, which can effectively prevent the electrical socket from being damaged by external dust and external bumps. When one of the electrical sockets needs to be used, the pressing piece can be pressed, and the pressing piece cooperates with the transmission piece to drive one of the movable blocks to be located outside, so that the electrical socket is located outside for charging. After use, the movable block can be moved to the storage slot.

[0023] 2. In the present application, when it is necessary to take out the moving block from the storage slot, the first step is to rotate the adjusting ring so that the pointer points to the moving block that needs to be taken out, and then press the adjusting ring to move the limit block in the moving ring groove into the limit card slot. At this time, the toggle lever will move, thereby cooperating with the transmission part to move the corresponding moving block out. The operation is convenient. You only need to take out the corresponding moving block according to the position of the pointer, which makes the operation more convenient and quick.

[0024] 3. When the position of the moving block is limited by the transmission member, the present application can effectively prevent the moving block in the storage slot from being moved out or bumped in the storage slot due to the bumps during driving.

[0025] 4. The present application is conducive to the movement of the moving block with the cooperation of the power rod, transmission rod and driving spring, which is more convenient when used and helps users to place the data cable on the electrical socket without the need to manually stabilize the position of the moving block.

[0026] 5. In the present application, when the moving block is inserted into the corresponding storage slot, because the part of the positioning block located in the storage slot is an inclined surface, when one end of the moving block contacts the inclined surface, the positioning block will be forced to move in the direction away from the adjusting ring until the positioning slot is opposite to the positioning block. The reset spring will push the positioning block into the positioning slot due to its own elastic deformation characteristics. Therefore, when the moving block is inserted into the storage slot, there is no need to manually drive the positioning block to move to achieve the positioning of the moving block, which is more convenient to use.

[0027] 6. The electrical sockets on the moving blocks in the present application can be Apple mobile phone fast charging sockets, Android mobile phone fast charging sockets and trapezoidal sockets respectively, so as to meet different user needs. When all three moving blocks need to be moved out for use, it is only necessary to use the adjustment member while pressing the adjustment ring to move the toggle sub-rod toward the axis of the adjustment ring, so that when the toggle rod contacts one of the forced inclined surfaces, the other two toggle sub-rods will also contact the other two forced inclined surfaces together, so that the three positioning rods can be driven to move at the same time, and then the limits on the three moving blocks can be released at the same time, so that the three moving blocks can be ejected from the corresponding storage slots at the same time, without the need to repeatedly rotate the adjustment ring, further improving the convenience of use.

[0028] 7. The present application can drive the arc plate to move through the pressing assembly. When the arc plate moves, the push block on the arc plate will move, so that the inclined surface on the push block contacts the inclined surface of the toggle sub-rod, thereby forcing the toggle sub-rod to approach the axial direction of the adjusting ring, so as to extend the toggle sub-rod and ensure that the toggle sub-rod can contact the corresponding forcing inclined surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure when used in this application;

[0030] Figure 2 This application Figure 1 Partial stereoscopic cutaway view;

[0031] Figure 3 This application Figure 1 Another partial three-dimensional cutaway view;

[0032] Figure 4 It is a partial structural display diagram of this application;

[0033] Figure 5 This is an exploded view of the structure of the adjustment ring of the present application;

[0034] Figure 6 This is another exploded view of the structure of the adjustment ring of the present application;

[0035] Figure 7 This is another part of the structural display diagram of this application;

[0036] Figure 8 This application also shows an exploded view of the part;

[0037] Fig. 9 This application Figure 2 A magnified view of the structure at center;

[0038] Fig.10 This application Figure 4 A magnified view of the structure at B in the middle;

[0039] Fig.11 This application Figure 3 A magnified view of the structure at C in the middle;

[0040] Fig.12 This application Figure 6 A magnified view of the structure at D in the middle;

[0041] Fig.13 This application Figure 6 Enlarged view of the structure at E in the middle;

[0042] Figure numerals: 1, plug charger; 2, exposed protrusion; 3, storage slot; 4, moving block; 5, electrical socket; 6, pressing member; 601, moving ring groove; 602, limit card slot; 603, limit block; 604, inner ring groove; 605, toggle rod; 606, pointer; 607, adjustment ring; 7, transmission member; 701, positioning block; 702, positioning slot; 703, reset spring; 704, driving block; 705, inclined slot; 706, rod body; 7 07. Forcing inclined plane; 8. Slide groove; 9. Push rod; 10. Push spring; 11. Power rod; 12. Transmission rod; 13. Adjustment member; 1301. Arc plate; 1302. Push block; 1303. Rebound spring; 14. Pressing assembly; 1401. Mounting groove; 1402. Drive plate; 1403. U-shaped spring; 1404. Actuator rod; 15. Positioning rod; 16. Positioning arc hole; 17. Toggle sub-rod; 18. Connecting spring; 19. Drive spring. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0044] Embodiment 1

[0045] like Figure 1-Figure 13 As shown, an embedded charger proposed in one embodiment of the present application includes:

[0046] A plug-in charger 1 is provided with a cylindrical exposed protrusion 2 on one side of the plug-in charger 1, and a plurality of storage slots 3 are provided in a circular array on the end surface of the exposed protrusion 2; Figure 1 and Figure 4As shown, after the plug-in charger 1 is inserted into the center console of the car, the exposed protrusion 2 is located outside, which is convenient for the subsequent control of the movement of the moving block 4;

[0047] A moving block 4, wherein the moving blocks 4 are multiple and respectively located in the multiple storage slots 3, and an electrical socket 5 is installed on one side of the moving block 4;

[0048] The driving mechanism includes a pressing member 6 installed on the moving block 4. A transmission member 7 acting on the pressing member 6 and the moving block 4 is installed inside the plug-in charger 1. When the pressing member 6 is pressed, the transmission member 7 drives one of the moving blocks 4 to move from the storage slot 3 to the end surface of the exposed protrusion 2;

[0049] When the electric plug 5 is in the storage slot 3, the electric plug 5 is in the storage slot 3, and the electric plug 5 is in the storage slot 3. ..., and the electric plug 5 is in the storage slot 3. When the electric plug 5 is in the storage slot 3, the electric plug 5 is in the storage slot 3, and the electric plug 5 is in the storage slot 3, and the electric plug 5 is in the storage slot 3. When the electric plug 5 is in the storage slot 3, the electric plug 5 is in the storage slot 3, and the electric plug 5 is in the storage slot 3, and the electric plug 5 is in the storage slot 3. When the electric plug 5 is in the storage slot 3, the electric plug 5 is in the storage slot 3, and the electric plug 5 is in the storage slot 3, and the electric plug 5 is in the storage slot 3, and the electric plug

[0050] like Figure 1 , Figure 6 and Fig.11As shown, in the first embodiment, a movable ring groove 601 is provided on the outer circumference of the movable block 4, and a plurality of limit slots 602 are provided in a circular array at one end of the movable ring groove 601 facing the plug-in charger 1, and the pressing member 6 includes an adjusting ring 607 movably and rotatably sleeved on the outer circumference of the exposed protrusion 2, and a limit block 603 for moving in the movable ring groove 601 and the limit slot 602 is constructed on the inner circumference of the adjusting ring 607, and a pointer 606 is constructed on the outer circumference of the adjusting ring 607, and an inner ring groove 604 is provided in an annular manner on the inner circumference of the adjusting ring 607, and a toggle rod 605 is horizontally constructed on the inner circumference of the inner ring groove 604 and opposite to the pointer 606, and the transmission member 7 acts on the toggle rod 605. When the limit When the block 603 moves to one of the limit slots 602, the toggle rod 605 is used to drive the transmission member 7 to drive one of the moving blocks 4 to move to the outside of the storage slot 3. That is to say, when the moving block 4 needs to be taken out from the storage slot 3, the adjustment ring 607 is first rotated to make the pointer 606 point to the moving block 4 that needs to be taken out, and then the adjustment ring 607 is pressed to make the limit block 603 located in the moving ring groove 601 move to the limit slot 602. At this time, the toggle rod 605 will move, thereby cooperating with the transmission member 7 to move the corresponding moving block 4 out. The operation is convenient. The corresponding moving block 4 can be taken out according to the position of the pointer 606, and the operation is more convenient and quick.

[0051] Embodiment 2

[0052] like Figure 1 , Figure 7 and Fig.11 As shown, the present embodiment further improves the present application on the basis of the first embodiment, slide grooves 8 are provided on opposite sides of the storage slot 3, a push rod 9 is vertically slidably inserted in the slide groove 8, one corner of the moving block 4 is rotatably installed between the ends of the two push rods 9, a push spring 10 is installed between the push rod 9 and the slide groove 8, when the moving block 4 moves into the storage slot 3, the transmission member 7 limits the position of the moving block 4, that is, when the moving block 4 located outside moves into the corresponding storage slot 3, the transmission member 7 will limit the position of the moving block 4, thereby effectively preventing the moving block 4 located in the storage slot 3 from being moved out or bumped in the storage slot 3 due to the bumps during driving.

[0053] like Figure 2 , 8 and Fig. 9As shown, in the second embodiment, the transmission member 7 includes a positioning block 701 horizontally slidably installed in the exposed protrusion 2, a positioning groove 702 for inserting the positioning block 701 is provided on the moving block 4, a reset spring piece 703 is installed between the positioning block 701 and the inside of the exposed protrusion 2, a driving block 704 is horizontally slidably installed in the exposed protrusion 2, an inclined groove 705 is provided on the driving block 704, a rod body 706 is constructed on the positioning block 701 and is tangential to the inclined groove 705, a forcing inclined surface 707 is constructed on the side of the driving block 704 away from the positioning block 701, and the toggle rod 605 is used to contact the forcing inclined surface 707, that is, when the moving block 4 moves into the storage slot 3, the corresponding positioning block 701 will be inserted into the positioning groove 702, so as to limit the position of the moving block 4, and the reset spring piece 703 can effectively The positioning block 701 is prevented from accidentally sliding out of the positioning groove 702. When the moving block 4 located in the storage groove 3 needs to be moved out, it is only necessary to rotate the adjusting ring 607 so that the toggle rod 605 is located above the corresponding driving block 704, and then press the adjusting ring 607 to drive the toggle rod 605 on the adjusting ring 607 to contact the forcing inclined surface 707. As the toggle rod 605 moves, the forcing inclined surface 707 will force the driving block 704 to move toward the axial direction close to the adjusting ring 607, thereby changing the position of the inclined groove 705. Because the rod body 706 on the positioning block 701 is tangential to the sliding of the inclined groove 705, the movement of the driving block 704 will cause the positioning block 701 to move away from the axial direction of the adjusting ring 607, thereby realizing that the positioning block 701 is separated from the corresponding moving block 4 to release the limit on the moving block 4.

[0054] Embodiment 3

[0055] like Figure 7As shown, this embodiment is further improved on the basis of the first and second embodiments. A power rod 11 is inserted into the bottom end of the storage slot 3 along its length direction. A driving spring 19 is installed between the power rod 11 and the inside of the plug-in charger 1. A transmission rod 12 is hinged between the power rod 11 and the moving block 4. After the moving block 4 in the storage slot 3 is separated from the corresponding positioning block 701, the driving spring 19 will extend and reset from the compressed state due to its own elastic deformation characteristics. However, because the moving block 4 is in the storage slot 3 at this time, the moving block 4 can only move toward the opening direction of the storage slot 3 at this time. At this time, the push rod 9 is also moving toward the opening direction of the storage slot 3. When the push rod 9 moves to the maximum limit position under the driving force of the push spring 10, the hinge between the moving block 4 and the push rod 9 is located outside, and the power rod 11 is not at the maximum limit position at this time, so the power rod 11 will continue to move upward. As the power rod 11 moves, the transmission rod 12 will force the moving block 4 to rotate until the side of the moving block 4 away from the electrical socket 5 is attached to the exposed protrusion 2, which is more convenient when used and convenient for users to set the data cable on the electrical socket 5 without manually stabilizing the position of the moving block 4.

[0056] like Figure 1 and Figure 8 As shown, in embodiment three, one side of the positioning block 701 facing the central axis of the exposed protrusion 2 is located in the storage slot 3 and is an inclined surface, and the inclined surface is open toward the storage slot 3, and the positioning slot 702 is triangular, that is, when the moving block 4 is inserted into the corresponding storage slot 3, because the part of the positioning block 701 located in the storage slot 3 is an inclined surface, when one end of the moving block 4 contacts the inclined surface, it will force the positioning block 701 to move away from the adjusting ring 607 until the positioning slot 702 is opposite to the positioning block 701. The reset spring piece 703 will push the positioning block 701 to be inserted into the positioning slot 702 due to its own elastic deformation characteristics, so that when the moving block 4 is inserted into the storage slot 3, there is no need to manually drive the positioning block 701 to move to achieve the positioning of the moving block 4, which is more convenient to use.

[0057] Embodiment 4

[0058] like Figure 1 and Figure 6As shown, this embodiment further improves the present application on the basis of the implementation of the first to third embodiments. The number of moving blocks 4 is three. Two toggle sub-rods 17 are installed for horizontal sliding inside the adjusting ring 607. The two toggle sub-rods 17 and the toggle rod 605 are distributed in a circular array around the axis of the adjusting ring 607. The sliding direction of the toggle sub-rod 17 is toward the center of the adjusting ring 607. The adjusting ring 607 is equipped with an adjusting member 13 for driving the toggle sub-rod 17 to move. The toggle sub-rod 17 is used to force the inclined surface 707 to contact. The electrical sockets 5 on the three moving blocks 4 can be Apple mobile phone fast charging sockets, Android mobile phone fast charging sockets and trapezoidal sockets, respectively, so that In order to meet different user needs, when all three moving blocks 4 need to be moved out for use, it is only necessary to use the adjusting member 13 while pressing the adjusting ring 607 to move the toggle sub-rod 17 toward the axial direction of the adjusting ring 607, so that when the toggle rod 605 contacts one of the forcing inclined surfaces 707, the other two toggle sub-rods 17 will also contact the other two forcing inclined surfaces 707 together, thereby driving the three positioning rods 15 to move at the same time, and then releasing the limit on the three moving blocks 4 at the same time, so that the three moving blocks 4 are ejected from the corresponding storage slots 3 at the same time, without repeatedly rotating the adjusting ring 607, further improving the convenience of use.

[0059] like Figure 1 , Figure 6 and Fig.13 As shown, in the fourth embodiment, the adjusting member 13 includes an arc plate 1301 slidably mounted inside the adjusting ring 607, the arc plate 1301 is coaxial with the adjusting ring 607, a rebound spring 1303 is installed between the toggle sub-rod 17 and the adjusting ring 607, and two push blocks 1302 with inclined tops are constructed on the arc plate 1301. The side of the toggle sub-rod 17 away from the adjusting ring 607 is an inclined surface for contacting the inclined surface of the push block 1302. The adjusting ring 607 is provided with a push block 1303 for driving the arc plate. The pressing assembly 14 that moves 1301 can drive the arc plate 1301 to move through the pressing assembly 14 when in use. When the arc plate 1301 moves, the push block 1302 on the arc plate 1301 will move, so that the inclined surface on the push block 1302 will contact the inclined surface of the toggle sub-rod 17, thereby forcing the toggle sub-rod 17 to approach the axial direction of the adjustment ring 607, so as to extend the toggle sub-rod 17 and ensure that the toggle sub-rod 17 can contact the corresponding forcing inclined surface 707.

[0060] Embodiment 5

[0061] like Figure 5As shown, this embodiment further improves the present application on the basis of the fourth embodiment, the inner and outer circumferential sides of the adjusting ring 607 are provided with mounting grooves 1401, the pressing member 6 includes a driving plate 1402 slidably mounted in the mounting groove 1401, a U-shaped spring piece 1403 is installed between the driving plate 1402 and the mounting groove 1401, and the driving plate 1402 is configured with an actuator rod 1404 on the side facing the axis of the adjusting ring 607, and the side of the arc plate 1301 away from the opening of the storage slot 3 is an inclined surface, and the actuator rod 1404 is used to move with the arc The inclined surface of the plate 1301 is in contact, and the pointer 606 and the driving plate 1402 are distributed opposite to each other on the adjustment ring 607. That is to say, when the driving plate 1402 is pressed, the actuator rod 1404 on the driving plate 1402 will contact the inclined surface of the arc plate 1301, so that the arc plate 1301 moves upward, and when the driving plate 1402 is released, it will be reset due to the U-shaped spring piece 1403. Therefore, when pressing the adjustment ring 607, the driving plate 1402 can be pressed according to the usage situation, which is convenient to use.

[0062] like Figure 5 , Figure 6 and Fig.10 As shown, in the first embodiment, a positioning rod 15 with an outer arc surface at one end is horizontally slidably installed on the limit block 603, and three positioning arc holes 16 are opened in the movable ring groove 601. A connecting spring 18 is installed between the positioning rod 15 and the inside of the limit block 603. The three positioning arc holes 16 are all located above the limit slot 602. The design of the positioning rod 15 allows the user to rotate the adjustment ring 607. When the positioning rod 15 is opposite to one of the positioning arc holes 16, the connecting spring 18 will cause the positioning rod 15 to be inserted into the positioning arc hole 16 and make a sound, to remind the user that the limit block 603 is now above the limit slot 602, and the limit block 603 can be pressed normally to enter the limit slot 602, which serves as a reminder to prevent the user from rotating the adjustment ring 607 at an incorrect angle and causing the adjustment ring 607 to fail to be pressed normally.

[0063] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A built-in charger, characterized in that: include: A plug-in charger (1), wherein a cylindrical exposed protrusion (2) is formed on one side of the plug-in charger (1), and a plurality of storage slots (3) are provided in a circular array on the end surface of the exposed protrusion (2); A moving block (4), wherein the moving blocks (4) are multiple in number and are respectively located in the multiple storage slots (3), and an electrical socket (5) is installed on one side of the moving block (4); The driving mechanism comprises a pressing member (6) mounted on the moving block (4); a transmission member (7) acting on the pressing member (6) and the moving block (4) is mounted inside the plug charger (1); when the pressing member (6) is pressed, the transmission member (7) drives one of the moving blocks (4) to move from the storage slot (3) to the end surface of the exposed protrusion (2); When the moving block (4) moves to the end face of the exposed protrusion (2), the corresponding electrical socket (5) is located outside the exposed protrusion (2); when the moving block (4) is located in the storage slot (3), the side of the moving block (4) on which the electrical socket (5) is installed fits the storage slot (3); The movable block (4) is provided with a movable annular groove (601) on its outer circumference, and a plurality of limit slots (602) are provided in a circular array at one end of the movable annular groove (601) facing the plug-in charger (1). The pressing member (6) comprises an adjusting ring (607) movably and rotatably sleeved on the outer circumference of the exposed protrusion (2), and a limit block (603) is constructed on the inner circumference of the adjusting ring (607) for moving in the movable annular groove (601) and the limit slot (602). The side structure is provided with a pointer (606); the inner circumference of the adjustment ring (607) is provided with an inner ring groove (604) in an annular manner; the inner circumference of the inner ring groove (604) and a horizontal structure with a toggle rod (605) is provided at a position opposite to the pointer (606); the transmission member (7) acts on the toggle rod (605); when the limit block (603) moves into one of the limit slots (602), the toggle rod (605) is used to drive the transmission member (7) to drive one of the moving blocks (4) to move to the outside of the storage slot (3); The storage slot (3) is provided with a slide slot (8) on both opposite sides, a push rod (9) is vertically slidably inserted in the slide slot (8), one corner of the moving block (4) is rotatably mounted between the ends of the two push rods (9), a push spring (10) is installed between the push rod (9) and the slide slot (8), and when the moving block (4) moves into the storage slot (3), the transmission member (7) limits the position of the moving block (4); The transmission member (7) comprises a positioning block (701) horizontally slidably mounted in the exposed protrusion (2); a positioning groove (702) for inserting the positioning block (701) is provided on the moving block (4); a reset spring (703) is installed between the positioning block (701) and the inside of the exposed protrusion (2); a driving block (704) is horizontally slidably mounted in the exposed protrusion (2); an inclined groove (705) is provided on the driving block (704); a rod body (706) is constructed on the positioning block (701) and is tangential to the inclined groove (705); a forcing inclined surface (707) is constructed on a side of the driving block (704) away from the positioning block (701); and the toggle rod (605) is used to contact the forcing inclined surface (707); A power rod (11) is slidably inserted into the bottom end of the storage slot (3) along its length direction, a driving spring (19) is installed between the power rod (11) and the inside of the plug-in charger (1), and a transmission rod (12) is hingedly connected between the power rod (11) and the moving block (4); The side of the positioning block (701) facing the central axis of the exposed protrusion (2) is located in the storage groove (3) and is an inclined surface, and the inclined surface faces the opening of the storage groove (3), and the positioning groove (702) is triangular; The number of the moving blocks (4) is three. Two toggle sub-rods (17) are horizontally slidably mounted inside the adjusting ring (607). The two toggle sub-rods (17) and the toggle rod (605) are arranged in a circular array around the axis of the adjusting ring (607). The sliding direction of the toggle sub-rods (17) is toward the center of the adjusting ring (607). An adjusting member (13) for driving the toggle sub-rods (17) to move is mounted on the adjusting ring (607). The toggle sub-rods (17) are used to contact the forced inclined surface (707). The adjusting member (13) comprises an arc plate (1301) slidably mounted inside the adjusting ring (607); the arc plate (1301) and the adjusting ring (607) are coaxial; a rebound spring (1303) is mounted between the toggle sub-rod (17) and the adjusting ring (607); two push blocks (1302) with inclined tops are constructed on the arc plate (1301); a surface of the toggle sub-rod (17) away from the adjusting ring (607) is an inclined surface for contacting the inclined surface of the push block (1302); and a pressing component (14) for driving the arc plate (1301) to move is mounted on the adjusting ring (607); The adjusting ring (607) is provided with mounting grooves (1401) on the inner and outer circumferential sides, the pressing member (6) comprises a driving plate (1402) slidably mounted in the mounting groove (1401), a U-shaped spring sheet (1403) is mounted between the driving plate (1402) and the mounting groove (1401), an actuating rod (1404) is configured on a side of the driving plate (1402) facing the axis of the adjusting ring (607), a side of the arc plate (1301) away from the opening of the storage groove (3) is an inclined surface, the actuating rod (1404) is used to contact the inclined surface of the arc plate (1301), and the pointing mark (606) and the driving plate (1402) are arranged on the adjusting ring (607) in a manner opposite to each other; A positioning rod (15) having an outer arc surface at one end is horizontally slidably mounted on the limit block (603); three positioning arc holes (16) are provided in the movable ring groove (601); a connecting spring (18) is installed between the positioning rod (15) and the inside of the limit block (603); and the three positioning arc holes (16) are all located above the limit slot (602).

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