Forward and reverse plugging charging interface

Abstract

The invention relates to the field of charging interfaces, and discloses a forward and reverse plugging charging interface, which comprises a casing provided with a plurality of grooves, and an expansion ring is fixedly mounted on the casing; the positioning mechanism is installed on the machine shell and comprises a limiting box, and after the machine shell is connected with an external socket, the limiting box is controlled to be connected with a limiting block in the socket in a matched mode. The adjusting mechanisms are installed in grooves in the left side and the right side of the machine shell and comprise first metal sheets, and the protection mechanism is fixedly connected with the machine shell and shields the expansion ring according to the use condition of the expansion ring. The casing is connected with the socket through the positioning mechanism, and the limiting box is matched and connected with the limiting block in the socket, so that the casing is prevented from falling off randomly; the adjusting mechanism supplements gas for the expansion ring according to the actual size of the socket, the gap between the machine shell and the socket is filled after the expansion ring is inflated, the connection stability is improved, and damage caused by entering of a water source can be effectively prevented.

Description

Technical Field

[0001] The present invention relates to the technical field of charging interfaces, and more specifically, it relates to a charging interface that can be inserted in either direction (front or back). Background Art

[0002] There are various charging interfaces, and common ones include wireless charging and POGO PIN contact charging. Wireless charging has low efficiency and serious heat generation, and it will also increase the thickness of the whole machine; POGO PIN usually contacts through magnetic attraction, close contact and shell buckle methods.

[0003] In the magnetic attraction method, the magnet not only occupies the internal structure space, but the magnetic field will also affect the performance of some sensors (geomagnetic). In addition, if the magnet is too small, the magnetic force is not enough, which will also cause the contact points to loosen and the contact impedance to be large, resulting in poor charging reliability.

[0004] For the close-contact charging interface, when the plug is inserted into the socket, it is mainly fixed by means of friction. This method makes the plugging and unplugging operations extremely inconvenient. Users often need to shake the plug back and forth during the plugging and unplugging process to complete the operation; frequent shaking not only increases the operation difficulty, but also may cause the metal contact parts inside the plug and the socket to wear due to uneven force, thereby affecting the service life and charging performance of the charging interface.

[0005] For the bayonet-type charging interface, although it solves the problem of difficult plugging and unplugging of the close-contact type, enabling the plug and the socket to be connected without close contact; however, there is a gap between the plug and the socket; since the charging interface is mainly used for charging, in the daily use scenarios, the environment around the plug and the socket is complex. Once water stains or other liquids accidentally enter these gaps, it may cause a short circuit, resulting in the plug and the socket being burned out. Therefore, we have designed a charging interface that can be inserted in either direction (front or back). Summary of the Invention

[0006] The present invention provides a charging interface that can be inserted in either direction (front or back), which solves the technical problem in the related art that although the bayonet-type charging interface solves the problem of difficult plugging and unplugging of the close-contact type and enables the plug and the socket to be connected without close contact; but it has serious defects. The gap between the plug and the socket is likely to allow water stains or other liquids to enter in the daily complex use environment, thereby causing a short circuit and resulting in the plug and the socket being burned out, affecting the use safety and service life.

[0007] The present invention provides a positive and negative pluggable charging interface, which includes a casing with a plurality of grooves, an expansion ring fixedly installed on the casing and filling the gap between the casing and the socket after inflation; a positioning mechanism installed inside the grooves on the upper and lower sides of the casing, including a limit box, and after the casing is connected to the external socket, controlling the matching connection between the limit box and the limit block inside the socket; an adjustment mechanism installed inside the grooves on the left and right sides of the casing, including a first metal sheet, and during the connection process between the casing and the external socket, supplementing the matching gas for the expansion ring according to the actual size inside the socket; a protection mechanism fixedly connected to the casing and shielding the expansion ring according to the usage situation of the expansion ring.

[0008] As a further optimized solution of the present invention, the positioning mechanism includes a first wedge block slidably connected to the casing, the first wedge block is fixedly connected to the limit box; a first gas supply component fixedly installed at the bottom of the limit box and fixedly connected to the casing; a pressing component slidably installed on the casing, and a second wedge block is fixedly installed at one end thereof close to the first wedge block.

[0009] As a further optimized solution of the present invention, a plurality of second metal sheets are fixedly connected to both the top and bottom of the casing, and first metal sheets are fixedly installed on both the left and right sides of the casing. The first metal sheets and the casing guide the casing during the installation of the casing into the socket.

[0010] As a further optimized solution of the present invention, the adjustment mechanism includes a second gas supply box fixedly installed with the casing; a second pressing plate slidably installed inside the second gas supply box and connected to the second gas supply box through a third spring; a second pressing column slidably installed on the second gas supply box and fixedly connected to the second pressing plate; a third connecting pipe, one end of which is connected to the second gas supply box, and the other end is connected to the first gas supply component; a fourth connecting pipe fixedly installed on the fourth connecting pipe and communicating with the second gas supply box located at the second metal sheet.

[0011] As a further optimized solution of the present invention, the first gas supply component includes a first gas supply box fixedly connected to the limit box; a first spring, one end of which is fixedly connected to the first gas supply box, and the other end is fixedly connected to the casing; a first pressing plate slidably installed inside the first gas supply box and connected to the first gas supply box through a second spring; a first pressing column slidably installed on the limit box and fixedly connected to the first pressing plate.

[0012] As a further optimized solution of the present invention, the pressing component includes a connecting plate fixedly connected to the second wedge block, an installation groove is provided on the connecting plate; a rack fixedly installed on the connecting plate; a driving frame fixedly installed on the rack.

[0013] As a further optimized solution of the present invention, the protection mechanism includes a base fixedly connected to the casing, a chute is provided on the base; a shielding ring is slidably installed inside the chute, and cleaning layers are provided on both its surface and inner wall; a fourth spring, one end of which is fixedly connected to the shielding ring, and the other end is fixedly connected to the base; a pulling component is fixedly installed on the base and is connected to the shielding ring.

[0014] As a further optimized solution of the present invention, the pulling component includes a fixed box fixedly connected to the base, a screw rod rotatably installed on the fixed box, a gear is fixedly installed at its bottom end, and the gear meshes with a rack; a threaded plate is slidably installed inside the fixed box and is threadedly connected to the screw rod; a pull rope, one end of which is fixedly connected to the threaded plate, and the other end is fixedly connected to the shielding ring.

[0015] As a further optimized solution of the present invention, a connecting groove is provided on the base, and a plug rod is fixedly installed on the driving frame, and the plug rod is inserted into the connecting groove.

[0016] As a further optimized solution of the present invention, a plurality of copper needles are fixedly installed on the casing, and after the casing is connected to the socket, the copper needles are in contact with the contacts inside the socket.

[0017] The beneficial effects of the present invention are as follows: 1. For the positive and negative pluggable charging interface of the present invention, the casing is connected to the socket through the positioning mechanism, and the limiting box is matched and connected with the limiting block inside the socket, avoiding the random detachment of the casing; the adjusting mechanism fills the expansion ring with gas according to the actual size of the socket. After the expansion ring is inflated, it fills the gap between the casing and the socket, not only improving the connection stability, but also effectively preventing water from entering and causing damage, ensuring the normal use of the charging interface.

[0018] 2. For the positive and negative pluggable charging interface of the present invention, the adjusting mechanism can adaptively provide a matching amount of gas for the expansion ring according to the different actual sizes of the socket; when the first metal sheet and the second metal sheet are squeezed by the socket, the driving second extrusion column squeezes the gas in the second gas supply box and enters the expansion ring, enabling the expansion ring to accurately seal according to different gap conditions, avoiding problems such as overpressure expansion damage or insufficient expansion affecting the sealing, prolonging the service life of the expansion ring, and improving the sealing effect.

[0019] 3. For the positive and negative pluggable charging interface of the present invention, the protection mechanism can protect and clean the expansion ring; when not inserted, the shielding ring partially shields the expansion ring under the action of the fourth spring to prevent it from being damaged; after insertion, pulling the driving frame can make the shielding ring retract into the chute, and the cleaning layer on its surface can clean the impurities on the inner wall of the socket and the surface of the expansion ring, avoiding impurities from affecting the sealing effect and ensuring the sealing performance and connection performance of the charging interface. Description of the Drawings

[0020] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the internal structure of the casing of the present invention; Figure 3 is a schematic diagram of the internal structure of the first air supply box of the present invention; Figure 4 is a schematic diagram of the internal structure of the second air supply box of the present invention; Figure 5 is a connection schematic diagram of the third connecting pipe and the fourth connecting pipe of the present invention; Figure 6 is a connection schematic diagram of the second connecting pipe and the first connecting pipe of the present invention; Figure 7 is a connection schematic diagram of the base and the shielding ring of the present invention; Figure 8 is Figure 7 an enlarged view of part A in Figure 9 is Figure 7 an enlarged view of part B in Figure 10 is a schematic diagram of the internal structure of the fixing box of the present invention.

[0021] In the figure: 1, base; 2, casing; 301, limit box; 302, first air supply box; 303, first wedge block; 304, connecting plate; 305, first extrusion column; 306, first pressing plate; 307, first spring; 308, second spring; 309, first connecting pipe; 310, second connecting pipe; 311, second wedge block; 312, driving frame; 313, expansion ring; 401, first metal sheet; 402, second air supply box; 403, second extrusion column; 404, third spring; 405, second pressing plate; 406, third connecting pipe; 407, fourth connecting pipe; 501, shielding ring; 502, fixing box; 503, pull rope; 504, fourth spring; 505, threaded plate; 506, rack; 507, gear; 508, screw; 6, second metal sheet; 7, insertion rod. Detailed implementation manners

[0022] Now, the subject matter described herein will be discussed with reference to exemplary embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described in some examples can also be combined in other examples.

[0023] As Figures 1 to 10As shown in the figure, a reversible plug-in charging interface according to an embodiment of the present invention includes a housing 2 provided with a plurality of grooves; an expansion ring 313 is fixedly installed on the housing 2 and fills the gap between the housing 2 and the socket after inflation; a positioning mechanism is installed inside the grooves on the upper and lower sides of the housing 2, which includes a limit box 301, and after the housing 2 is connected to the external socket, the limit box 301 is controlled to be connected to a limit block inside the socket in a matching manner; an adjustment mechanism is installed inside the grooves on the left and right sides of the housing 2, which includes a first metal sheet 401, and during the connection process between the housing 2 and the external socket, according to the actual size inside the socket, matching gas is supplied to the expansion ring 313; a protection mechanism is fixedly connected to the housing 2 and shields the expansion ring 313 according to the usage of the expansion ring 313.

[0024] It should be noted that the size of the housing 2 is smaller than that of the socket, which is convenient for inserting into the socket. A plurality of copper pins are fixedly installed on the housing 2, and the copper pins are used to contact the contacts inside the socket. When it is necessary to connect the plug to the socket, the housing 2 can be first placed inside the socket. Subsequently, by controlling the positioning mechanism, the limit box 301 is continuously moved upward. Since there is a limit block inside the socket that matches the limit box 301, and the limit block will be first squeezed and retracted by the housing 2, and when the limit block moves to the position of the limit box 301, it will lose its limit, and when the limit box 301 moves upward to the specified position, it will be connected to the limit block in a matching manner, so that the housing 2 can be well limited inside the socket and prevent the housing 2 from falling off randomly, resulting in connection failure.

[0025] When the housing 2 is installed inside the socket, due to the setting of the adjustment mechanism, the adjustment mechanism can limit and install the housing 2 with a size smaller than the socket, so that it is installed at the center of the socket. As the housing 2 is continuously installed inside the socket, the adjustment mechanism will also be driven according to the actual size of the socket, so that the adjustment mechanism supplies relative gas, and these gases just match the positioning mechanism and are squeezed into the expansion ring 313 by the limit block. The expansion ring 313 can effectively fill the gap between the housing 2 and the socket, which can not only provide the stability of the installation of the housing 2, but also prevent water from entering between the housing 2 and the socket and causing damage to the connection.

[0026] As Figures 1 to 2 shown, the positioning mechanism includes a first wedge block 303 slidably connected to the housing 2, and the first wedge block 303 is fixedly connected to the limit box 301; a first gas supply assembly is fixedly installed at the bottom of the limit box 301 and is fixedly connected to the housing 2; a pressing assembly is slidably installed on the connecting plate 304, and a second wedge block 311 is fixedly installed at one end thereof close to the first wedge block 303.

[0027] After the casing 2 is completely moved into the socket, press the pressing component. The pressing component will cause the second wedge block 311 to move. The movement of the second wedge block 311 will squeeze the first wedge block 303, causing the first wedge block 303 to continuously move upward. The upward movement of the first wedge block 303 will cause the limit box 301 to move upward. In this way, the limit box 301 will be inserted into the limit block in the socket, and the casing 2 will be installed inside the socket.

[0028] As Figure 1 shown, a plurality of second metal sheets 6 are fixedly connected to the top and bottom of the casing 2. First metal sheets 401 are fixedly installed on both the left and right sides of the casing 2. During the process of installing the casing 2 into the socket, the first metal sheets 401 and the casing 2 guide the casing 2.

[0029] Since the size of the casing 2 is smaller than the size of the socket, in order to ensure that the casing 2 can be inserted into the center of the socket and accurately ensure the connection between the plug and the socket, when the casing 2 enters the socket, the first metal sheets 401 and the second metal sheets 6 will assist the casing 2 to enter. Due to the characteristics of the first metal sheets 401 and the second metal sheets 6 themselves, they will exert a squeezing effect on the inside of the socket. In this way, not only can the casing 2 be located at the center position and move in stably, but also the connection between the casing 2 and the socket can be strengthened.

[0030] As Figure 4 and Figure 5 shown, the adjusting mechanism includes a second air supply box 402 fixedly installed with the casing 2; a second pressing plate 405 is slidably installed inside the second air supply box 402 and is connected to the second air supply box 402 through a third spring 404; a second pressing column 403 is slidably installed on the second air supply box 402 and is fixedly connected to the second pressing plate 405; one end of a third connecting pipe 406 is connected to the second air supply box 402, and the other end is connected to the first air supply component; a fourth connecting pipe 407 is fixedly installed on the fourth connecting pipe 407 and is communicated with the second air supply box 402 located at the second metal sheet 6.

[0031] When the first metal sheets 401 and the second metal sheets 6 assist the casing 2 to enter the socket, since the size of the socket is fixed, the first metal sheets 401 and the second metal sheets 6 will be squeezed as they continuously enter. When the first metal sheets 401 and the second metal sheets 6 are squeezed, their corresponding second pressing columns 403 will also be squeezed. In this way, the second pressing plate 405 can squeeze the gas in the second air supply box 402, and the gas inside it will enter the first air supply component through the third connecting pipe 406 and the fourth connecting pipe 407. Finally, the gas is introduced into the expansion ring 313, so that the gap between the casing 2 and the socket is filled, preventing water from entering and also strengthening the stability.

[0032] The gap between the socket and the housing 2 is not fixed. The actual dimensions of the two may deviate from the standard dimensions, and as the usage time increases, their dimensions will also be worn. Therefore, the degree of expansion of the expansion ring 313 should be different, otherwise, there will be a situation where the expansion ring 313 is damaged due to overpressure expansion, and a situation where the expansion is insufficient and the sealing is affected. Moreover, the degree of extrusion on the first metal sheet 401 and the second metal sheet 6 is not fixed and will be extruded according to the actual dimensions of the socket. Thus, the gas provided to the first gas supply assembly is provided according to the actual dimensions of the socket and is not fixed. Therefore, the gas supplied by the first gas supply assembly will also match the gas corresponding to the actual dimensions of the socket, so as to effectively keep the expansion ring 313 in the best state to seal the gap between the socket and the housing 2, not only protecting the expansion ring 313 but also effectively sealing. The expansion of the expansion ring 313 can also stably place the housing 2 inside the socket. Together with the first metal sheet 401 and the housing 2, it can further ensure the stable state after the housing 2 is inserted.

[0033] As Figure 3 shown, the first gas supply assembly includes a first gas supply box 302 fixedly connected to the limit box 301; one end of the first spring 307 is fixedly connected to the first gas supply box 302, and the other end is fixedly connected to the housing 2; the first pressing plate 306 is slidably installed inside the first gas supply box 302 and is connected to the first gas supply box 302 through the second spring 308; the first pressing column 305 is slidably installed on the limit box 301 and is fixedly connected to the first pressing plate 306.

[0034] After the housing 2 enters the socket, when the first metal sheet 401 and the housing 2 provide a certain amount of gas to the first gas supply box 302 according to the actual dimensions of the socket, when the limit box 301 on the housing 2 is at the limit block inside the socket, the limit block will be inserted into and matched with the limit box 301, thereby squeezing the first pressing column 305 on the limit box 301, causing the first pressing column 305 to discharge the gas in the first gas supply box 302 into the expansion ring 313. In this way, the expansion ring 313 will expand, so as to fill the gap between the housing 2 and the socket and achieve a sealing effect.

[0035] As Figure 6 shown, the first gas supply assembly further includes a first connecting pipe 309 fixedly connected to the first gas supply box 302. A plurality of second connecting pipes 310 are fixedly installed on the first connecting pipe 309, and the second connecting pipes 310 are communicated with the expansion ring 313.

[0036] When the first extrusion column 305 is pressed, allowing the gas in the first air supply box 302 to enter the expansion ring 313 through the first connecting pipe 309 and the second connecting pipe 310, since there are multiple second connecting pipes 310 and they are connected to different positions of the expansion ring 313, when the gas enters the first connecting pipe 309, it will be diverted into different second connecting pipes 310. As a result, the gas entering the expansion ring 313 will enter from different positions, with the air flow evenly distributed for transportation. This enables each area to be quickly filled and the pressure to be balanced, avoiding the problem of pressure attenuation at the end, allowing all parts of the expansion ring 313 to better contact the socket, and preventing uneven pressure from affecting the sealing effect.

[0037] As Figure 7 and Figure 10 shown, the pressing assembly includes a connecting plate 304 fixedly connected to the second wedge block 311. An installation groove is formed on the connecting plate 304; a rack 506 is fixedly installed on the connecting plate 304; a driving frame 312 is fixedly installed on the rack 506.

[0038] By pulling or pushing the driving frame 312, the connecting plate 304 can drive the second wedge block 311 to press the first wedge block 303, and this process will also drive the protection mechanism to act on the gap between the socket and the casing 2.

[0039] As Figure 7 and Figure 8 and Figure 10 shown, the protection mechanism includes a base 1 fixedly connected to the casing 2. A sliding groove is formed on the base 1; a shielding ring 501 is slidably installed inside the sliding groove, and cleaning layers are provided on both its surface and inner wall; one end of a fourth spring 504 is fixedly connected to the shielding ring 501, and the other end is fixedly connected to the base 1; a pulling assembly is fixedly installed on the base 1 and is connected to the shielding ring 501.

[0040] When the second wedge block 311 has not yet acted on the first wedge block 303, due to the action of the fourth spring 504, the shielding ring 501 will be partially withdrawn from the sliding groove. The part of the shielding ring 501 located outside will block the expansion ring 313, thereby protecting the expansion ring 313 when it is not in use and preventing it from being damaged. When the casing 2 is properly inserted into the socket, it will push the driving frame 312, causing the driving frame 312 to drive the connecting plate 304 and the expansion ring 313 to act on the first wedge block 303, thus connecting the limit box 301 with the limit block. When the connecting plate 304 moves, it will also cause the shielding ring 501 to return to the inside of the sliding groove through the pulling assembly. The shielding ring 501 is provided with a cleaning layer, which can be bristles, so that all the impurities on the inner wall of the socket and the surface of the expansion ring 313 can be cleaned, thereby preventing impurities from affecting the sealing of the expansion ring 313 at the gap between the casing 2 and the socket.

[0041] AsFigure 10 As shown in the figure, the pulling component includes a fixed box 502 fixedly connected to the base 1. A screw rod 508 is rotatably installed on the fixed box 502, and a gear 507 is fixedly installed at its bottom end. The gear 507 meshes with a rack 506. A threaded plate 505 is slidably installed inside the fixed box 502 and is threadedly connected to the screw rod 508. One end of a pull rope 503 is fixedly connected to the threaded plate 505, and the other end is fixedly connected to a shielding ring 501.

[0042] When the driving frame 312 is pushed, causing the connecting plate 304 and the second wedge-shaped block 311 to act on the first wedge-shaped block 303, the rack 506 on the connecting plate 304 will act on the gear 507, causing the gear 507 to drive the screw rod 508 to rotate. In this way, the screw rod 508 will drive the threaded plate 505 to move upward. The upward movement of the threaded plate 505 will pull the pull rope 503, thereby causing the shielding ring 501 to return to the inside of the chute and releasing the expansion ring 313.

[0043] As Figure 7 and Figure 9 shown in the figure, a connecting groove is provided on the base 1, and a plug rod 7 is fixedly installed on the driving frame 312. The plug rod 7 is inserted into the connecting groove.

[0044] After the driving frame 312 is pushed to a specified position, the plug rod 7 will be inserted into the connecting groove to fix the driving frame 312 and prevent it from moving randomly, which may affect the sealing effect of the expansion ring 313 on the gap between the machine shell 2 and the socket.

[0045] Working principle: The size of the machine shell 2 is smaller than that of the socket, and a plurality of copper pins are fixed on its surface for contacting the contacts inside the socket. There are second metal sheets 6 at the top and bottom of the machine shell 2, and first metal sheets 401 on the left and right sides. When inserting, the first metal sheets 401 and the second metal sheets 6 use their own characteristics to squeeze the inside of the socket, assisting the machine shell 2 to stably insert from the center of the socket and strengthening the connection between the two.

[0046] After the machine shell 2 is inserted into the socket, press the driving frame 312. The driving frame 312 drives the connecting plate 304. The second wedge-shaped block 311 on the connecting plate 304 squeezes the first wedge-shaped block 303, causing the first wedge-shaped block 303 to drive the limiting box 301 to move upward. The limiting block inside the socket is first squeezed and retracted by the machine shell 2. When the limiting block moves to the position of the limiting box 301 and loses its limit, the limiting box 301 moves upward to a specified position and is matched and connected with the limiting block, limiting the machine shell 2 inside the socket to prevent it from falling off.

[0047] During the insertion of the housing 2, the first metal sheet 401 and the second metal sheet 6 are squeezed by the socket, driving the second extrusion column 403 connected thereto to squeeze the second extrusion plate 405. The second extrusion plate 405 compresses the gas in the second air supply box 402, and the gas enters the first air supply box 302 through the third connecting pipe 406 and the fourth connecting pipe 407. When the limit box 301 on the housing 2 reaches the limit block in the socket, the limit block squeezes the first extrusion column 305, and the first extrusion column 305 discharges the gas in the first air supply box 302 into the expansion ring 313 through the first connecting pipe 309 and a plurality of second connecting pipes 310. Since there are multiple second connecting pipes 310 and they are connected to different positions of the expansion ring 313, the gas is evenly distributed and transported, so that the expansion ring 313 is quickly filled and the pressure is balanced everywhere, filling the gap between the housing 2 and the socket, playing a sealing role, preventing water from entering, and strengthening the connection stability.

[0048] Before the housing 2 is fully inserted, the fourth spring 504 causes the shielding ring 501 to partially withdraw from the sliding groove. The surface and inner wall cleaning layer of the shielding ring 501 can shield and protect the expansion ring 313. After the housing 2 is inserted properly, the driving frame 312 is pushed. The connecting plate 304 moves, the rack 506 drives the gear 507 to rotate, the gear 507 drives the screw rod 508 to rotate, the screw rod 508 moves the threaded plate 505 upward, pulls the pull rope 503, and makes the shielding ring 501 return to the inside of the sliding groove. The cleaning layer cleans the impurities on the inner wall of the socket and the surface of the expansion ring 313 to avoid affecting the sealing. Finally, the driving frame 312 is pushed to the designated position, and the insertion rod 7 is inserted into the connecting groove on the base 1 to fix the driving frame 312 and ensure the sealing effect of the expansion ring 313.

[0049] When the housing 2 needs to be pulled out, the driving frame 312 is pulled to separate the limit box 301 from the limit block. In this way, the gas in the expansion ring 313 will return to the first air supply assembly and the adjustment mechanism, which is convenient for removing the housing 2 and also convenient for the subsequent continued use of the expansion ring 313.

[0050] The above describes the embodiments of the present invention, but these embodiments are not limited to the above specific implementation manners. The above specific implementation manners are only illustrative and not restrictive. Under the inspiration of this embodiment, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of this embodiment.

Claims

1. A reversible charging interface, comprising a housing (2) having a plurality of grooves, characterized in that: An expansion ring (313) is fixedly mounted on the housing (2) and fills the gap between the housing (2) and the socket after being inflated; A positioning mechanism is installed inside the grooves on the upper and lower sides of the housing (2), including a limit box (301), and after the housing (2) is connected to an external socket, the limit box (301) is controlled to match and connect with the limit block in the socket; An adjustment mechanism is installed inside the grooves on the left and right sides of the housing (2), includes a first metal sheet (401), and during the process of connecting the housing (2) to the socket outside, replenishes matching gas for the expansion ring (313) according to the actual size of the socket inside; The protection mechanism is fixedly connected to the housing (2) and shields the expansion ring (313) according to the usage of the expansion ring (313).

2. A reversible charging interface according to claim 1, characterized in that: The positioning mechanism comprises a first wedge block (303) slidably connected to the housing (2), and the first wedge block (303) is fixedly connected to the limit box (301); A first air supply assembly, fixedly mounted on the bottom of the limit box (301) and fixedly connected to the housing (2); The pressing assembly is slidably mounted on the housing (2), and a second wedge block (311) is fixedly mounted on one end of the pressing assembly close to the first wedge block (303).

3. The forward and reverse plug charging interface according to claim 1, characterized in that: A plurality of second metal sheets (6) are fixedly connected to the top and bottom of the casing (2), and first metal sheets (401) are fixedly installed on both the left and right sides of the casing (2), and the first metal sheets (401) and the casing (2) both guide the casing (2) during the process of installing the casing (2) into the socket.

4. The forward and reverse plug charging interface according to claim 3, characterized in that: The regulating mechanism comprises a second air supply box (402) fixedly mounted on the housing (2); A second extrusion plate (405) is slidably mounted inside the second air supply box (402) and is connected to the second air supply box (402) via a third spring (404); A second extrusion column (403) is slidably mounted on the second air supply box (402) and fixedly connected to the second extrusion plate (405); A third connecting pipe (406), one end of which is connected to the second air supply box (402), and the other end of which is connected to the first air supply assembly; The fourth connecting pipe (407) is fixedly mounted on the fourth connecting pipe (407) and is connected to the second air supply box (402) located at the second metal sheet (6).

5. The forward and reverse plug charging interface according to claim 2, characterized in that: The first air supply assembly comprises a first air supply box (302) fixedly connected to the limit box (301); a first spring (307), one end of which is fixedly connected to the first air supply box (302), and the other end of which is fixedly connected to the housing (2); A first pressing plate (306) is slidably mounted inside the first air supply box (302) and is connected to the first air supply box (302) via a second spring (308); The first extrusion column (305) is slidably mounted on the limit box (301) and is fixedly connected to the first pressing plate (306).

6. The forward and reverse plug charging interface according to claim 5, characterized in that: The pressing assembly comprises a connecting plate (304) fixedly connected to the second wedge-shaped block (311), and a mounting groove is provided on the connecting plate (304); A rack (506) fixedly mounted on the connecting plate (304); The driving frame (312) is fixedly mounted on the rack (506).

7. The forward and reverse plug charging interface according to claim 6, characterized in that: The protection mechanism comprises a base (1) fixedly connected to the housing (2), and a slide groove is provided on the base (1); A shielding ring (501) is slidably mounted inside the slide groove, and a cleaning layer is provided on the surface and inner wall of the shielding ring; A fourth spring (504), one end of which is fixedly connected to the shielding ring (501), and the other end of which is fixedly connected to the base (1); The pulling assembly is fixedly mounted on the base (1) and connected to the shielding ring (501).

8. The forward and reverse plug charging interface according to claim 7, characterized in that: The pulling assembly comprises a fixing box (502) fixedly connected to the base (1). A screw rod (508) is rotatably mounted on the fixed box (502), and a gear (507) is fixedly mounted on the bottom end of the screw rod, and the gear (507) is meshed with the rack (506); A threaded plate (505) is slidably mounted inside the fixing box (502) and is threadably connected to the screw rod (508); A pull rope (503) has one end fixedly connected to the threaded plate (505) and the other end fixedly connected to the shielding ring (501).

9. The forward and reverse plug charging interface according to claim 7, characterized in that: The base (1) is provided with a connection groove, and an insertion rod (7) is fixedly mounted on the drive frame (312), and the insertion rod (7) is plugged into the connection groove.

10. The forward and reverse plug charging interface according to claim 1, characterized in that: A plurality of copper pins are fixedly mounted on the housing (2), and the copper pins are in contact with contacts in the socket after the housing (2) is connected to the socket.

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