A reversible charging interface

Abstract

The present invention relates to the field of charging interfaces and discloses a forward and reverse plug-in charging interface, comprising a casing with multiple grooves, an expansion ring fixedly mounted on the casing; a positioning mechanism mounted on the casing, comprising a limit box, and controlling the limit box to match and connect with a limit block in the socket after the casing is connected to an external socket; an adjustment mechanism mounted inside the grooves on the left and right sides of the casing, comprising a first metal sheet; a protective mechanism fixedly connected to the casing, and shielding the expansion ring according to the use of the expansion ring; the casing is connected to the socket through the positioning mechanism, and the limit box is matched and connected with the limit block in the socket to prevent the casing from falling off at will; the adjustment mechanism replenishes gas for the expansion ring according to the actual size of the socket, and the expansion ring fills the gap between the casing and the socket after inflation, which not only improves the connection stability but also effectively prevents water from entering and causing damage.

Description

Technical Field

[0001] The present invention relates to the technical field of charging interfaces, and more particularly to a forward-and-reversible charging interface. Background Art

[0002] There are many different charging interfaces, the most common ones are wireless charging and POGO PIN contact charging. Wireless charging is inefficient, generates severe heat, and increases the thickness of the entire device; POGO PIN often makes contact through magnetic attraction, close contact, and shell snap-on.

[0003] Magnetic attraction not only takes up internal structural space, but the magnetic field will also affect the performance of some sensors (geomagnetic field). In addition, if the magnet is too small, insufficient magnetic force will cause loose contacts and high contact impedance, resulting in poor charging reliability.

[0004] Close-contact charging ports rely primarily on friction to secure the plug when inserted into the socket. This makes plugging and unplugging extremely inconvenient, requiring users to jiggle the plug back and forth to complete the process. Frequent jiggle not only increases the difficulty but can also cause uneven force on the metal contact parts between the plug and socket, leading to wear and tear, which in turn affects the lifespan and charging performance of the charging port.

[0005] The bayonet-type charging interface solves the problem of close-contact plugging and unplugging, allowing the plug and 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, the environment around the plug and socket is complex in daily use scenarios. Once water stains or other liquids accidentally enter these gaps, it may cause a short circuit and cause the plug and socket to burn out. Therefore, we designed a reversible charging interface. Summary of the Invention

[0006] The present invention provides a reversible charging interface, which solves the problem of the difficulty of close contact plugging and unplugging in the bayonet-type charging interface in the related art, allowing the plug and the socket to be connected without close contact; but it has a serious defect. The gap between the plug and the socket is easy to allow water stains or other liquids to enter under the complex daily use environment, thereby causing a short circuit, resulting in burning of the plug and the socket, and affecting the safety of use and the life of the technical problem.

[0007] The present invention provides a forward and reverse plug-in charging interface, comprising a casing with a plurality of grooves, an expansion ring fixedly mounted on the casing and filling a gap between the casing and a socket after being inflated; a positioning mechanism mounted inside the grooves on the upper and lower sides of the casing, comprising a limit box, and controlling the limit box to match and connect with a limit block in the socket after the casing is connected to an external socket; an adjustment mechanism mounted inside the grooves on the left and right sides of the casing, comprising a first metal sheet, and replenishing matching gas for the expansion ring according to the actual size of the socket during the connection process between the casing and the external socket; and a protective mechanism fixedly connected to the casing and shielding the expansion ring according to the usage of the expansion ring.

[0008] As a further optimization scheme of the present invention, the positioning mechanism includes a first wedge block slidably connected to the casing, and the first wedge block is fixedly connected to the limit box; a first air supply assembly is fixedly installed on the bottom of the limit box and fixedly connected to the casing; a pressing assembly is slidably installed on the casing, and a second wedge block is fixedly installed on one end of the pressing assembly close to the first wedge block.

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

[0010] As a further optimization scheme of the present invention, the adjustment mechanism includes a second air supply box fixedly installed on the casing; a second extrusion plate, slidably installed inside the second air supply box, and connected to the second air supply box through a third spring; a second extrusion column, slidably installed on the second air supply box, and fixedly connected to the second extrusion plate; a third connecting pipe, one end of which is connected to the second air supply box and the other end is connected to the first air supply assembly; a fourth connecting pipe, fixedly installed on the fourth connecting pipe, and communicated with the second air supply box located at the second metal sheet.

[0011] As a further optimization scheme of the present invention, the first air supply assembly includes a first air supply box fixedly connected to the limit box; a first spring, one end of which is fixedly connected to the first air supply box and the other end is fixedly connected to the casing; a first pressure plate, slidably installed inside the first air supply box and connected to the first air supply box through a second spring; a first extrusion column, slidably installed on the limit box and fixedly connected to the first pressure plate.

[0012] As a further optimization solution of the present invention, the pressing assembly includes a connecting plate fixedly connected to the second wedge block, and a mounting groove is provided on the connecting plate; a rack fixedly mounted on the connecting plate; and a drive frame fixedly mounted on the rack.

[0013] As a further optimization scheme of the present invention, the protective mechanism includes a base fixedly connected to the casing, and a slide groove is provided on the base; a shielding ring is slidably installed inside the slide groove, and a cleaning layer is provided on 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 assembly is fixedly installed on the base and connected to the shielding ring.

[0014] As a further optimization scheme of the present invention, the pulling assembly includes a fixed box fixedly connected to the base, a screw, which is rotatably installed on the fixed box, and a gear is fixedly installed on the bottom end of the screw, and the gear is engaged with the rack; a threaded plate, which is slidably installed inside the fixed box and is threadedly connected to the screw; 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 optimization solution of the present invention, a connecting groove is provided on the base, and an inserting rod is fixedly mounted on the driving frame, and the inserting rod is plugged into the connecting groove.

[0016] As a further optimization solution of the present invention, a plurality of copper pins are fixedly mounted on the housing, and after the housing and the socket are connected, the copper pins come into contact with contacts in the socket.

[0017] The beneficial effects of the present invention are:

[0018] 1. The reversible charging interface described in the present invention connects the housing and the socket through a positioning mechanism, and the limit box is matched and connected with the limit block inside the socket to prevent the housing from falling off at will; the adjustment mechanism replenishes gas for the expansion ring according to the actual size of the socket. After the expansion ring is inflated, it fills the gap between the housing and the socket, which not only improves the connection stability, but also effectively prevents water from entering and causing damage, thereby ensuring the normal use of the charging interface.

[0019] 2. The present invention discloses a reversible charging interface, wherein the adjustment mechanism can adaptively provide a matching amount of gas to the expansion ring according to the actual size of the socket. When the first metal sheet and the second metal sheet are squeezed by the socket, the second squeezing column is driven to squeeze the gas in the second gas supply box into the expansion ring, so that the expansion ring can be accurately sealed according to different gap conditions, avoiding damage due to overpressure expansion or insufficient expansion affecting the sealing, thereby extending the service life of the expansion ring and improving the sealing effect.

[0020] 3. The protective mechanism of the reversible charging interface described in the present invention can protect and clean the expansion ring; when not inserted, the shielding ring partially blocks the expansion ring under the action of the fourth spring to prevent it from being damaged; after insertion, the driving frame is pulled to return the shielding ring to the slide groove, and its surface cleaning layer can clean impurities on the inner wall of the socket and the surface of the expansion ring to prevent impurities from affecting the sealing effect, thereby ensuring the sealing and connection performance of the charging interface. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 Schematic diagram of the internal structure of the housing of the present invention;

[0023] Figure 3 Schematic diagram of the internal structure of the first gas supply box of the present invention;

[0024] Figure 4 Schematic diagram of the internal structure of the second gas supply box of the present invention;

[0025] Figure 5 This is a schematic diagram of the connection between the third connecting pipe and the fourth connecting pipe of the present invention;

[0026] Figure 6 This is a schematic diagram of the connection between the second connecting pipe and the first connecting pipe of the present invention;

[0027] Figure 7 This is a schematic diagram of the connection between the base and the shielding ring of the present invention;

[0028] Figure 8 yes Figure 7 Enlarged view of point A in the middle;

[0029] Figure 9 yes Figure 7 Enlarged view of point B in the middle;

[0030] Figure 10 It is a schematic diagram of the internal structure of the fixing box of the present invention.

[0031] 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 pressure plate; 307. first spring; 308. second spring; 309. first connecting tube; 310. second connecting tube; 311. second wedge block; 312. drive frame; 313. expansion ring; 401. first metal sheet; 402. second air supply box; 403. second extrusion column; 404. third spring; 405. second extrusion plate; 406. third connecting tube; 407. fourth connecting tube; 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. plug rod. DETAILED DESCRIPTION

[0032] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. Furthermore, features described for some examples may be combined in other examples.

[0033] like Figures 1 to 10 As shown, a forward and reverse plug-in charging interface of an embodiment of the present invention includes a housing 2 with multiple grooves; an expansion ring 313 is fixedly installed on the housing 2, and fills the gap between the housing 2 and the socket after being inflated; a positioning mechanism is installed in 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 the external socket, the limit box 301 is controlled to match and connect with the limit block in the socket; the adjustment mechanism is installed in the grooves on the left and right sides of the housing 2, including a first metal sheet 401, and during the process of connecting the housing 2 to the external socket, the matching gas is supplemented for the expansion ring 313 according to the actual size of the socket; the protective mechanism is fixedly connected to the housing 2, and blocks the expansion ring 313 according to the usage of the expansion ring 313.

[0034] It should be noted that the size of the casing 2 is smaller than the size of the socket, which is convenient for inserting into the socket. A plurality of copper pins are fixedly installed on the casing 2, and the copper pins are used to contact the contacts in the socket. When the plug needs to be connected to the socket, the casing 2 can be placed inside the socket first. Then, by controlling the positioning mechanism, the limit box 301 is continuously moved up. Since a limit block matching the limit box 301 is provided inside the socket, and the limit block will first be squeezed and retracted by the casing 2, and the limit block will lose its limit when it moves to the limit box 301. When the limit box 301 moves up to the specified position, it will match and connect with the limit block. In this way, the casing 2 can be well limited inside the socket to prevent the casing 2 from falling off at will, resulting in connection failure.

[0035] When the casing 2 is installed inside the socket, due to the setting of the adjustment mechanism, the adjustment mechanism can limit the installation of the casing 2, which is smaller than the socket, so that it is installed in the center of the socket. As the casing 2 is continuously installed inside the socket, the adjustment mechanism will be driven according to the actual size of the socket, so that the adjustment mechanism supplies relative gas. These gases just match the positioning mechanism and are squeezed into the expansion ring 313 by the limiting block. The expansion ring 313 can effectively fill the gap between the casing 2 and the socket. This not only provides stability for the installation of the casing 2, but also prevents water from entering between the casing 2 and the socket, causing damage to the connection.

[0036] like Figures 1 to 2As shown, the positioning mechanism includes a first wedge block 303 that is slidably connected to the casing 2, and the first wedge block 303 is fixedly connected to the limit box 301; the first air supply assembly is fixedly installed at the bottom of the limit box 301 and is fixedly connected to the casing 2; the pressing assembly is slidably installed on the connecting plate 304, and a second wedge block 311 is fixedly installed on one end of the pressing assembly close to the first wedge block 303.

[0037] When the housing 2 is completely moved into the socket, press the pressing component, which will move the second wedge block 311. The movement of the second wedge block 311 will squeeze the first wedge block 303, causing the first wedge block 303 to move upward continuously. The upward movement of the first wedge block 303 will cause the limit box 301 to move upward, so that the limit box 301 will be plugged into the limit block in the socket, allowing the housing 2 to be installed inside the socket.

[0038] like Figure 1 As shown, multiple 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 the left and right sides of the casing 2. 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.

[0039] 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 in 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 sheet 401 and the second metal sheet 6 will assist the casing 2 in entering. Due to the characteristics of the first metal sheet 401 and the second metal sheet 6 themselves, they will have a squeezing effect on the inside of the socket, which not only allows the casing 2 to be located in the center position and move in stably, but also strengthens the connection between the casing 2 and the socket.

[0040] like Figure 4 and Figure 5 As shown, the adjustment mechanism includes a second air supply box 402 fixedly mounted on the casing 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 through a third spring 404; a second extrusion column 403 is slidably mounted on the second air supply box 402, and is fixedly connected to the second extrusion plate 405; one end of the third connecting pipe 406 is connected to the second air supply box 402, and the other end is connected to the first air supply assembly; the fourth connecting pipe 407 is fixedly mounted on the fourth connecting pipe 407, and is communicated with the second air supply box 402 located at the second metal sheet 6.

[0041] When the first metal sheet 401 and the second metal sheet 6 assist the casing 2 to enter the interior of the socket, since the size of the socket is fixed, the first metal sheet 401 and the second metal sheet 6 will be squeezed as they continue to enter. When the first metal sheet 401 and the second metal sheet 6 are squeezed, the corresponding second squeezing column 403 will also be squeezed, so that the second squeezing plate 405 can squeeze the gas in the second air supply box 402, so that the gas inside it enters the interior of the first air supply assembly through the third connecting pipe 406 and the fourth connecting pipe 407. Finally, the gas is passed into the expansion ring 313, so that the expansion ring 313 fills the gap between the casing 2 and the socket to prevent water from entering and enhance stability.

[0042] The gap between the socket and the casing 2 is not fixed, and the actual sizes of the two may deviate from the standard sizes, and their sizes will also wear out as the use time increases. Therefore, the degree of expansion of the expansion ring 313 should be different, otherwise the expansion ring 313 will be damaged by overpressure expansion, and the expansion is insufficient, which affects the sealing. The degree of extrusion of the first metal sheet 401 and the second metal sheet 6 is not fixed either, and will be squeezed according to the actual size of the socket. In this way, the gas provided to the first air supply component is provided according to the actual size of the socket, and is not fixed. In this way, the gas supplied by the first air supply component will also match the actual size of the socket, so that the expansion ring 313 can be effectively placed in the best state to seal the gap between the socket and the casing 2, which not only protects the expansion ring 313, but also effectively seals. The expansion of the expansion ring 313 can also stably place the casing 2 inside the socket, and combined with the first metal sheet 401 and the casing 2, it can further ensure the stable state of the casing 2 after insertion.

[0043] like Figure 3 As shown, the first air supply assembly includes a first air supply box 302 fixedly connected to the limit box 301; one end of the first spring 307 is fixedly connected to the first air supply box 302, and the other end is fixedly connected to the casing 2; the first pressure plate 306 is slidably installed inside the first air supply box 302, and is connected to the first air supply box 302 through the second spring 308; the first extrusion column 305 is slidably installed on the limit box 301, and is fixedly connected to the first pressure plate 306.

[0044] When the casing 2 enters the socket, the first metal sheet 401 and the casing 2 provide a certain amount of gas to the first air supply box 302 according to the actual size of the socket. When the limit box 301 on the casing 2 is at the limit block in the socket, the limit block will match and plug into the limit box 301, thereby squeezing the first extrusion column 305 on the limit box 301, so that the first extrusion column 305 discharges the gas in the first air supply box 302 into the expansion ring 313, so that the expansion ring 313 will expand, thereby filling the gap between the casing 2 and the socket to achieve a sealing effect.

[0045] like Figure 6 As shown, the first air supply assembly further includes a first connecting pipe 309 fixedly connected to the first air supply box 302 , a plurality of second connecting pipes 310 are fixedly mounted on the first connecting pipe 309 , and the second connecting pipes 310 are communicated with the expansion ring 313 .

[0046] When the first extrusion column 305 is pressed, the gas in the first air supply box 302 enters the expansion ring 313 through the first connecting tube 309 and the second connecting tube 310. Since there are multiple second connecting tubes 310 and they are connected to different positions of the expansion ring 313, when the gas enters the first connecting tube 309, it will be diverted to different second connecting tubes 310, so that the gas entering the expansion ring 313 will be transported from different positions, and the airflow will be evenly distributed, so that each area can not only be quickly filled, but also the pressure can be balanced, avoiding the problem of pressure attenuation at the end, so that the expansion ring 313 can be better in contact with the socket at all places, avoiding uneven pressure affecting the sealing effect.

[0047] like Figure 7 and Figure 10 As shown, the pressing assembly includes a connecting plate 304 fixedly connected to the second wedge block 311 , and a mounting slot is provided on the connecting plate 304 ; a rack 506 is fixedly mounted on the connecting plate 304 ; and a driving frame 312 is fixedly mounted on the rack 506 .

[0048] By pulling or pushing the driving frame 312 , the connecting plate 304 can drive the second wedge block 311 to squeeze the first wedge block 303 , and this process will also drive the protective mechanism to act on the gap between the socket and the housing 2 .

[0049] like Figure 7 and Figure 8 and Figure 10 As shown, the protective mechanism includes a base 1 fixedly connected to the casing 2, and a slide groove is provided on the base 1; a shielding ring 501 is slidably installed inside the slide groove, and a cleaning layer is provided on its surface and inner wall; one end of the fourth spring 504 is fixedly connected to the shielding ring 501, and the other end is fixedly connected to the base 1; the pulling assembly is fixedly installed on the base 1 and connected to the shielding ring 501.

[0050] 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 slide groove, and the outer part of the shielding ring 501 will shield the expansion ring 313, thereby protecting the expansion ring 313 when not in use and preventing it from being damaged. When the housing 2 is inserted into the socket, it will push the driving frame 312, so that the driving frame 312 drives the connecting plate 304 and the expansion ring 313 to act on the first wedge block 303, thereby connecting the limit box 301 with the limit block. When the connecting plate 304 moves, it will also pull the component to make the shielding ring 501 return to the inside of the slide groove. A cleaning layer is provided on the shielding ring 501, and the cleaning layer can be bristles, which can compare the inner wall of the socket with the expansion ring 313, and all impurities on the surface are cleaned, thereby preventing impurities from affecting the sealing of the gap between the housing 2 and the socket by the expansion ring 313.

[0051] like Figure 10 As shown, the pulling assembly includes a fixed box 502 fixedly connected to the base 1, a screw 508 rotatably installed on the fixed box 502, a gear 507 fixedly installed at the bottom end, and the gear 507 is engaged with the rack 506; a threaded plate 505 is slidably installed inside the fixed box 502 and is threadedly connected to the screw 508; one end of the pull rope 503 is fixedly connected to the threaded plate 505, and the other end is fixedly connected to the shielding ring 501.

[0052] When the driving frame 312 is pushed, causing the connecting plate 304 and the second wedge block 311 to act on the first wedge block 303, the rack 506 on the connecting plate 304 will act on the gear 507, causing the gear 507 to drive the screw 508 to rotate, so that the screw 508 will drive the threaded plate 505 to move upward, and 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 slide groove and release the expansion ring 313.

[0053] like Figure 7 and Figure 9 As shown, a connecting groove is provided on the base 1 , and an inserting rod 7 is fixedly mounted on the driving frame 312 , and the inserting rod 7 is plugged into the connecting groove.

[0054] When the driving frame 312 is pushed to the designated position, the insertion rod 7 will be plugged into the connection groove to fix the driving frame 312 to prevent it from moving at will and affecting the sealing effect of the expansion ring 313 on the gap between the housing 2 and the socket.

[0055] Working principle: The size of the housing 2 is smaller than the socket, and multiple copper pins are fixed on its surface for contacting the contacts inside the socket; there are second metal sheets 6 on the top and bottom of the housing 2, and first metal sheets 401 on the left and right sides. When inserted, the first metal sheet 401 and the second metal sheet 6 use their own characteristics to squeeze the inside of the socket, assisting the housing 2 to be stably inserted from the center of the socket, and strengthening the connection between the two.

[0056] After the casing 2 is inserted into the socket, the driving frame 312 is pressed, and the driving frame 312 drives the connecting plate 304. The second wedge block 311 on the connecting plate 304 squeezes the first wedge block 303, so that the first wedge block 303 drives the limit box 301 to move upward; the limit block in the socket is first squeezed and retracted by the casing 2, and when the limit block moves to the limit box 301 and loses its limit, the limit box 301 moves up to the specified position and matches and connects with the limit block, limiting the casing 2 inside the socket to prevent it from falling off.

[0057] During the insertion process of the casing 2, the first metal sheet 401 and the second metal sheet 6 are squeezed by the socket, driving the second squeezing column 403 connected thereto to squeeze the second squeezing plate 405, and the second squeezing 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 casing 2 reaches the limit block in the socket, the limit block squeezes the first squeezing column 305, and the first squeezing column 305 discharges the gas in the first air supply box 302 into the expansion ring 313 through the first connecting pipe 309 and multiple 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, filling the gap between the casing 2 and the socket, playing a sealing role, preventing water from entering, and strengthening the connection stability.

[0058] When the casing 2 is not fully inserted, the fourth spring 504 causes the shielding ring 501 to partially withdraw from the slide groove, and the cleaning layer on the surface and inner wall of the shielding ring 501 can shield and protect the expansion ring 313; after the casing 2 is inserted, 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 508 to rotate, the screw 508 causes the threaded plate 505 to move upward, and the pull rope 503 is pulled to make the shielding ring 501 return to the inside of the slide groove, and 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 specified position, the insertion rod 7 is plugged into the connecting groove on the base 1, and the driving frame 312 is fixed to ensure the sealing effect of the expansion ring 313.

[0059] When the casing 2 needs to be pulled out, the drive 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, making it convenient to remove the casing 2 and to continue to use the subsequent expansion ring 313.

[0060] The above describes an embodiment of the present invention, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms based on the inspiration of this embodiment, all of which are protected by this embodiment.

Claims

1. A reversible charging port, comprising a housing (2) with 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 controls the limit box (301) to match and connect with the limit block in the socket after the housing (2) is connected to the external socket; The regulating mechanism is installed in the grooves on the left and right sides of the housing (2), includes a first metal sheet (401), and replenishes matching gas for the expansion ring (313) according to the actual size of the socket when the housing (2) is connected to the socket outside; A protective mechanism is fixedly connected to the housing (2) and shields the expansion ring (313) according to the use of the expansion ring (313); The protective mechanism comprises a base (1) fixedly connected to the housing (2), and a sliding groove is provided on the base (1); A blocking ring (501) is slidably mounted inside the chute, and a cleaning layer is provided on its surface and inner wall; 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); A pulling assembly is fixedly mounted on the base (1) and connected to the shielding ring (501); The pulling assembly comprises a fixing box (502) fixedly connected to the base (1), A screw (508) is rotatably mounted on the fixed box (502), and a gear (507) is fixedly mounted on the bottom end thereof, wherein 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), one end of which is fixedly connected to the threaded plate (505) and the other end of which is fixedly connected to the shielding ring (501); The positioning mechanism comprises a first wedge-shaped block (303) slidably connected to the housing (2), and the first wedge-shaped block (303) is fixedly connected to the limit box (301); A first air supply assembly is fixedly mounted on the bottom of the limit box (301) and is fixedly connected to the housing (2); A 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); 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).

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

3. The reversible charging port according to claim 2, 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).

4. The reversible charging port according to claim 3, 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 pressure 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 fixedly connected to the first pressing plate (306).

5. The reversible charging port according to claim 4, characterized in that: A connecting groove is provided on the base (1), and an inserting rod (7) is fixedly mounted on the driving frame (312), and the inserting rod (7) is plugged into the connecting groove.

6. The reversible charging port according to claim 1, characterized in that: A plurality of copper pins are fixedly mounted on the housing (2), and the copper pins come into contact with contacts in the socket after the housing (2) is connected to the socket.

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