CN220324856U - Charging gun mechanical lock device and charging gun - Google Patents

Abstract

The utility model relates to the technical field of charging guns, in particular to a mechanical lock device of a charging gun and the charging gun. The mechanical locking device of the charging gun comprises a mechanical locking mechanism and a micro switch, wherein the mechanical locking mechanism and the micro switch are arranged in a containing cavity of a gun shell, and the mechanical locking mechanism comprises a clamping hook piece and a pressing piece pivoted with the clamping hook piece. The trip piece is including consecutive trip end, touch the pressure portion, connecting portion and stopper, and trip end front end stretches out and holds the chamber, touches the pressure portion top and is equipped with the trip spring with the top cap butt of rifle shell, and micro-gap switch locates and touches pressure portion below. The pressing piece comprises a pivot joint part, a limiting groove and a pressing part which are sequentially connected, the connecting part is clamped at the middle part of the pivot joint part, a fixing pin is arranged between the pivot joint part and the limiting groove in a penetrating mode, the opening of the limiting groove faces downwards, the limiting block is arranged in the limiting groove and is abutted with the lower surface of the limiting groove, and a pressing spring abutted with the gun shell is arranged below the pressing part. The utility model can solve the problems that the existing mechanical lock of the charging gun is easy to cause the deformation of the clamping hook and the damage of the electronic lock when the mechanical lock is subjected to external force.

Description

Charging gun mechanical lock device and charging gun

Technical Field

The utility model relates to the technical field of charging guns, in particular to a mechanical lock device of a charging gun and the charging gun.

Background

With the widespread use of new energy electric vehicles, devices for charging electric vehicles are also rapidly developing. The electric automobile uses the rifle that charges more, and the rifle that charges is gone up and is always established mechanical locking structure for with the rifle locking that charges on charging equipment's socket in the charging process. The mechanical lock of the charging gun plays a dual function role of on-off of the micro switch and locking of the charging gun and the socket in the use process.

At present, the common mechanical lock device in the rifle that charges on the market adopts integral type pothook structure more, and in the locking charging process of rifle that charges, the rifle that charges causes integral type pothook to warp when receiving external force to press easily and causes the condition of damage to spacing electronic lock, has increased the mechanical lock fault rate of rifle that charges. The charging gun adopting the sectional split shaft type clamping hook structure also appears in the market, and the electronic lock cannot be damaged, but the clamping hook structure is complex, and the larger internal installation space of the charging gun product is required to be occupied, so that the volume and the weight of the charging gun are increased, the attractiveness is influenced, and the portability of the user in operation and use is inconvenient to improve.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a mechanical lock device of a charging gun and the charging gun, which can provide a flexible space for the movement of a clamping hook structure and improve the safety and operability of the mechanical lock structure. The utility model can effectively solve the problems that the clamping hook is easy to deform and damage the electronic lock when the existing mechanical lock of the charging gun is pressed by external force.

In order to achieve the technical purpose, the utility model adopts the following technical scheme:

in one technical scheme of the utility model, a mechanical lock device of a charging gun is provided, and the mechanical lock device is arranged in a gun shell of the charging gun and comprises a mechanical locking mechanism and a micro switch, wherein an accommodating cavity with an upward opening is arranged at the top of the gun shell, a top cover is arranged on the upper part of the accommodating cavity, the mechanical locking mechanism and the micro switch are both arranged in the accommodating cavity, and the mechanical locking mechanism comprises a clamping hook piece and a pressing piece pivoted with the clamping hook piece;

the clamping hook piece comprises a clamping hook end, a touch pressing part, a connecting part and a limiting block which are integrally formed and sequentially connected, the front end of the clamping hook end extends out of the accommodating cavity, a clamping hook spring which is abutted with the top cover is arranged above the touch pressing part, and the micro switch is arranged below the touch pressing part;

the pressing piece comprises a pivot joint part, a limit groove and a pressing part which are connected in sequence, the connecting part is clamped at the middle part of the pivot joint part, a fixing pin is arranged between the pivot joint part and the limit groove in a penetrating mode, the opening of the limit groove faces downwards, the limit block is arranged in the limit groove and is abutted to the lower surface of the limit groove, and a pressing spring abutted to the gun shell is arranged below the pressing part.

By adopting the technical scheme, the mechanical locking mechanism is arranged to be the clamping hook piece and the pressing piece which are coaxially and sectionally pivoted, the limiting block is arranged in the limiting groove and is abutted against the limiting piece, the clamping hook piece can be guaranteed to be driven to be lifted upwards integrally when the pressing part is pressed down, so that the clamping hook end at the front end of the clamping fastener is opened, the pressing part is loosened after the clamping hook piece is inserted into the charging socket, the clamping hook spring is arranged above the pressing part, the clamping hook end is driven to be folded and clamped with the charging socket under the rebound force of the clamping hook spring, and the pressing part is triggered to start the micro switch below the pressing part, so that the charging gun is locked for charging. In addition, when charging gun locking grafting is on the socket that charges of car, if have exogenic action on charging gun, because of trip spare and press the piece cover and locate the fixed pin and carry out the pivoted connection outward, the trip spare can be independent movable for the press piece, when the trip end opens upwards to lift up, the stopper can rotate downwards and the spacing groove is out of the butt, has increased the independent movable space of trip spare to solve the problem that the deformation of transmission unification trip structure was bent.

In some possible embodiments, two opposite pin shaft supports are disposed in the accommodating cavity, a through hole is formed in each pin shaft support, a pin hole is formed in each connecting portion, a shaft hole is formed in each pivot portion, each pivot portion is disposed in each pin shaft support, each connecting portion is disposed in each pivot portion, the through holes, the shaft holes and the pin holes are coaxially distributed, and are connected through penetrating fixing pins, the fixing pins are used as supporting points between the clamping hook pieces and the pressing pieces, and when the pressing portions of the pressing pieces are pressed downwards, the clamping hook ends on the clamping hook pieces and the pressing portions can be lifted upwards.

In some possible embodiments, the electronic lock further comprises an electronic lock arranged in the accommodating cavity and electrically connected with the micro switch, the lock cylinder assembly on the electronic lock is positioned below the pressing part, and the lower surface of the pressing part is provided with a convex block corresponding to the position of the lock cylinder assembly. When the pressing part is pressed down, the bump triggers the lock core component to rotate to an unlocking position, and triggers the micro switch to realize feedback output of an unlocking signal, so that the charging gun is unlocked and powered off; the trip end is released the pressing part after matching the joint with the socket that charges on the car, and the lug breaks away from lock core subassembly, and electronic lock rotates to the locking position, triggers micro-gap switch and realizes the feedback of locking signal, charges the rifle and locks and charges, prevents to charge the rifle and take off from charging the socket pine.

In some possible embodiments, an unlocking hole is formed in the side face of the gun shell, an unlocking button is installed in the unlocking hole, and the end portion of the unlocking button stretches into the accommodating cavity to correspond to the lock cylinder assembly. When the electronic lock fails and cannot be unlocked normally, the electronic lock can be unlocked and reset manually by manually pressing the unlocking button.

In some possible embodiments, the upper surface of the pressing part is provided with a first spring groove, the lower surface of the top cover is provided with a limit column, the upper end of the trip spring is sleeved outside the limit column, the lower end of the trip spring is arranged in the first spring groove, so that the accuracy of the installation position of the trip spring is improved, the deformation of the trip spring in the compression and rebound processes is avoided, and the stability of the opening and closing movement of the pressing part is ensured.

In some possible embodiments, the lower surface of the pressing part is provided with a second spring groove, the pressing spring is arranged in the second spring groove, and the upper end and the lower end of the pressing spring are respectively abutted against the pressing part and the gun shell, so that the accuracy of the installation position of the pressing spring is improved, the pressing part is prevented from twisting in the compression and rebound process, and the movement stability of the pressing part in the pressing and loosening process is ensured.

In some possible embodiments, a fixing plate is pressed above the micro switch, and the fixing plate is fixedly connected with the gun shell through a bolt, so that the micro switch is fixedly installed in the accommodating cavity.

The utility model also provides a charging gun, which comprises a hollow gun shell, wherein the top of the gun shell is provided with a containing cavity and a top cover covering an upper opening of the containing cavity, and the containing cavity is internally provided with the mechanical locking device of the charging gun. Through set up rifle mechanical lock device that charges in charging gun, both can guarantee to charge the rifle and can lock the joint and carry out safe charging when the socket joins in marriage with car charges, still provide flexible space for trip end activity through setting up sectional type pivoted mechanical locking mechanism simultaneously, avoid because of external force presses the rifle that charges when charging and lead to the trip to warp to mechanical lock device's security has been improved, extension rifle life charges.

In some possible embodiments, the top cover is provided with a mounting hole, and the top of the pressing part is arranged in the mounting hole, so that the user can press the device manually.

In some possible embodiments, an electronic wire sealing ring communicated with the inner cavity of the gun shell is arranged at the bottom of the accommodating cavity in a penetrating way and used for penetrating and connecting the electronic wires. The electronic wire of micro-gap switch and electronic lock wears to establish through the electron line sealing washer and goes out, and the leakproofness of threading position can be guaranteed to the electron line sealing washer.

The beneficial effects of the utility model are as follows:

according to the mechanical locking device for the charging gun, the traditional integral clamping hook structure and the sectional split shaft type clamping hook structure are changed into the sectional mechanical locking mechanism which is in pivot connection, and the mechanical locking device is arranged in the charging gun, so that the charging gun can be ensured to be locked and clamped for safe charging when being matched with an automobile charging socket, and meanwhile, the problem that the clamping hook piece is deformed and a limiting electronic lock is damaged when the charging gun is pressed by external force in the locking charging process can be better prevented, so that the safety of the charging process of the charging gun is improved, and the service life of the charging gun is prolonged.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the structure of a mechanical lock device of a charging gun in the gun housing of the present utility model;

FIG. 2 is an exploded view of the mechanical lock device of the charging gun of the present utility model;

FIG. 3 is a schematic view of the connection structure of the mechanical locking mechanism of the present utility model;

FIG. 4 is a schematic cross-sectional view of the mechanical lock device of the charging gun of the present utility model inside the gun housing;

FIG. 5 is an enlarged view of a portion of FIG. 4 at "A";

fig. 6 is a schematic perspective view of a charging gun according to the present utility model;

fig. 7 is a schematic perspective view of the charging gun of the present utility model with the top cover removed.

The reference numerals in the figures illustrate: 1. a gun housing; 11. a receiving chamber; 12. a top cover; 121. a limit column; 13. a pin shaft support; 131. a through hole; 14. unlocking the hole; 15. a mounting hole; 2. a mechanical locking mechanism; 21. a hook member; 211. a hook end; 212. a touch-press section; 213. a connection part; 214. a limiting block; 215. a pin hole; 216. a first spring groove; 22. a pressing member; 221. a pivoting part; 222. a limit groove; 223. a pressing part; 224. a shaft hole; 225. a bump; 226. a spring groove II; 23. a fixing pin; 24. a hook spring; 25. pressing the spring; 3. a micro-switch; 4. an electronic lock; 41. a lock cylinder assembly; 5. an unlock button; 6. a fixing plate; 7. and an electron wire sealing ring.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present utility model with specific examples. While the description of the utility model will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation.

In the description of the present embodiment, it should be noted that, directions or positional relationships indicated by terms "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "front", "rear", etc., are directions or positional relationships based on those shown in the drawings, or directions or positional relationships in which the inventive product is conventionally put in use, are merely for convenience in describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element referred to has a specific direction, is configured and operated in a specific direction, and therefore, should not be construed as limiting the present utility model.

In the description of the present embodiment, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present embodiment can be understood in a specific case by those of ordinary skill in the art.

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 to 2, in one embodiment of the present utility model, a mechanical lock device for a charging gun is provided, which is disposed inside a gun case 1 of the charging gun, a containing cavity 11 with an upward opening is disposed at the top of the gun case 1, a top cover 12 is disposed on an upper cover of the containing cavity 11, and the top cover 12 is detachably connected with the gun case 1 through bolts. The charging gun mechanical lock device comprises a mechanical locking mechanism 2 and a micro switch 3, and the mechanical locking mechanism 2 and the micro switch 3 are arranged in the accommodating cavity 11. The mechanical locking mechanism 2 includes a hook member 21 and a pressing member 22 pivotally connected to the hook member. The fixed plate 6 is arranged above the microswitch 3 in a pressing mode, and the fixed plate 6 is fixedly connected with the gun shell 1 through bolts and used for fixedly mounting the microswitch 3 in the accommodating cavity 11.

Referring to fig. 2 to 4, the hook member 21 includes a hook end 211, a contact portion 212, a connecting portion 213 and a stopper 214, which are integrally formed and sequentially connected. The front end of the hook end 211 extends out of the accommodating cavity 11, and a hook spring 24 which is abutted against the top cover 12 is arranged above the touch-pressing part 212, and the hook spring 24 ensures the stability of the lifting movement of the touch-pressing part 212. The micro-switch 3 is arranged below the contact part 212, the clamping hook end 211 is downwards pressed and clamped with the charging socket under the action of the resilience force of the clamping hook spring 24, and meanwhile, the contact part 212 triggers the micro-switch 3 below to be started, so that the charging gun is locked for charging. The pressing member 22 includes a pivot portion 221, a limiting slot 222, and a pressing portion 223, which are sequentially connected, and the connecting portion 213 is clamped in the middle of the pivot portion 221, and a fixing pin 23 is disposed between the two. The limiting groove 222 is opened downwards, and the limiting block 214 is arranged in the limiting groove 222 and is abutted against the lower surface of the limiting groove, so that the whole hook piece 21 is driven to be lifted upwards when the pressing part 223 is pressed downwards, and the hook end 211 at the front end of the hook piece 21 is opened conveniently. The pressing spring 25 abutting against the gun case 1 is arranged below the pressing part 223, so that stability of the pressing stroke process of the pressing part 223 is ensured.

When the electric automobile charges, peg graft the rifle that charges on electric automobile's the socket that charges, operating personnel pushes down the pressing part 223, compress pressing spring 25, stopper 214 butt is in spacing groove 222, connecting portion 213 and pin joint portion 221 rotate around fixed pin 23 together, trip end 211 and touch the upward lifting compression trip spring 24 of pressing part 212, trip end 211 and the socket that charges on the automobile loosen pressing part 223 after matcing, press spring 25 rebound upward, under the resilience force effect of trip spring 24, trip end 211 folds chucking socket that charges downwards, touch pressing part 212 touches downwards and presses start micro-gap switch 3 and charge. When the charging gun is locked and plugged on a charging socket of an automobile, if external force acts on the charging gun, the clamping hook piece 21 and the pressing piece 22 are sleeved outside the fixing pin 23 to be in pivot connection, the clamping hook piece 21 can independently move relative to the pressing piece 22, when the clamping hook end 211 is opened and lifted upwards, the limiting block 214 can downwards rotate and is not abutted to the limiting groove 222, the independent moving space of the clamping hook piece 21 is increased, and accordingly the problem that the integrated clamping hook structure is deformed and bent is solved.

Referring to fig. 2 and 5, the upper surface of the pressing portion 212 is provided with a first spring groove 216 with a circular opening facing upwards, the lower surface of the top cover 12 is provided with a limit post 121, the upper end of the hook spring 24 is sleeved outside the limit post 121, the lower end of the hook spring 24 is arranged in the first spring groove 216, so that the accuracy of the installation position of the hook spring 24 is improved, the deformation of the hook spring in the compression and rebound processes is avoided, and the stability of the opening and closing movement of the pressing portion 212 is ensured. Referring to fig. 3 and 5, the lower surface of the pressing part 223 is provided with a second spring groove 226 with a circular opening facing downwards, the pressing spring 25 is arranged in the second spring groove 226, and the upper and lower ends of the pressing spring 25 are respectively abutted against the pressing part 223 and the gun case 1, so that the accuracy of the installation position of the pressing spring 25 is improved, the pressing spring is prevented from twisting in the compression and rebound processes, and the movement stability of the pressing part 223 in the pressing and loosening processes is ensured.

Referring to fig. 2 and 7, two opposite pin holders 13 are provided in the accommodating chamber 11, a through hole 131 is provided in the pin holders 13, a pin hole 215 is provided in the connecting portion 213, and a shaft hole 224 is provided in the pivot portion 221. The pin joint part 221 is arranged in the two pin shaft supports 13, the connecting part 213 is arranged in the pin joint part 221, the through holes 131, the shaft holes 224 and the pin holes 215 are coaxially distributed and are connected through penetrating fixing pins 23, the fixing pins 23 are fixedly connected with the pin shaft supports 13, and therefore the fact that the fixing pins 23 are used as supporting points between the clamping hook piece 21 and the pressing piece 22 is guaranteed, and when the pressing part 223 of the pressing piece 22 is pressed downwards, the clamping hook ends 211 and the touch pressing parts 212 on the clamping hook piece 21 can be lifted upwards.

Referring to fig. 1, 4 and 5, an electronic lock 4 electrically connected to the micro switch 3 is provided in the accommodating chamber 11, the electronic lock 4 is a motor electronic lock, a key cylinder assembly 41 on the electronic lock 4 is positioned below a pressing portion 223, and a projection 225 corresponding to the position of the key cylinder assembly 41 is provided on the lower surface of the pressing portion 223. The bump 225 triggers the lock cylinder assembly 41 to rotate to the unlocking position when the pressing part 223 is pressed down, and triggers the micro switch 3 to realize feedback output of unlocking signals, so that the charging gun is unlocked and powered off. After the clamping hook end 211 is matched with a charging socket on an automobile, the pressing part 223 is loosened, the protruding block 225 is separated from the lock core assembly 41, the electronic lock 4 rotates to the locking position, the micro switch 3 is triggered to realize feedback of locking signals, and the charging gun is locked and charged, so that the charging gun is prevented from being released from the charging socket. The side of the gun shell 1 is also provided with an unlocking hole 14, an unlocking button 5 which is telescopic by a spring is arranged in the unlocking hole 14, and the end part of the unlocking button 5 stretches into the accommodating cavity 11 to correspond to the lock core assembly 41 in position. When the electronic lock 4 fails and cannot be unlocked normally, the electronic lock 4 can be unlocked and reset manually by manually pressing the unlocking button 5.

Referring to fig. 6 and 7, there is also provided a charging gun according to another embodiment of the present utility model, including a hollow gun case 1, in which a terminal assembly and a charging cable (not shown) are installed in a hollow inner cavity of the gun case 1. The top of the gun housing 1 is provided with a containing cavity 11 and a top cover 12 covering an opening on the containing cavity 11, and the containing cavity 11 is provided with the charging gun mechanical lock device in the embodiment. The top cover 12 is provided with the mounting hole 15, and the top of the pressing part 223 is arranged in the mounting hole 15, so that the manual pressing operation of a user is facilitated. The bottom of the accommodating cavity 11 is penetrated with an electron wire sealing ring 7 communicated with the inner cavity of the gun shell 1 for penetrating and connecting an electron wire. The electronic wires of the micro switch 3 and the electronic lock 4 are penetrated out through the electronic wire sealing ring 7, and the electronic wire sealing ring 7 can ensure the tightness of the threading part. Through setting up rifle mechanical lock device that charges in charging gun, both can guarantee to charge the rifle and can lock the joint and carry out safe charging when the socket joins in marriage with car charges, still provide flexible space for trip end activity through setting up the mechanical locking mechanism 2 of sectional type pin joint simultaneously, avoid because of external force presses the rifle that charges when charging and lead to the trip to warp to mechanical lock device's security has been improved, extension rifle life charges.

While the utility model has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a further detailed description of the utility model with reference to specific embodiments, and it is not intended to limit the practice of the utility model to those descriptions. Therefore, all technical solutions which are available to the person skilled in the art based on the prior art through logic analysis, reasoning or limited experiments according to the inventive concept are within the scope of protection defined by the claims.

Claims (10)

1. The mechanical lock device of the charging gun is arranged inside a gun shell (1) of the charging gun and is characterized by comprising a mechanical locking mechanism (2) and a micro switch (3), wherein an accommodating cavity (11) with an upward opening is formed in the top of the gun shell (1), a top cover (12) is arranged on the upper part of the accommodating cavity (11), the mechanical locking mechanism (2) and the micro switch (3) are arranged in the accommodating cavity (11), and the mechanical locking mechanism (2) comprises a clamping hook piece (21) and a pressing piece (22) connected with the clamping hook piece in a pivoted mode;

the clamping hook piece (21) comprises a clamping hook end (211), a touch pressing part (212), a connecting part (213) and a limiting block (214) which are integrally formed and sequentially connected, the front end of the clamping hook end (211) extends out of the accommodating cavity (11), a clamping hook spring (24) which is abutted to the top cover (12) is arranged above the touch pressing part (212), and the micro switch (3) is arranged below the touch pressing part (212);

the pressing piece (22) comprises a pivot part (221), a limiting groove (222) and a pressing part (223) which are sequentially connected, the connecting part (213) is clamped at the middle part of the pivot part (221), a fixing pin (23) is arranged between the two parts in a penetrating mode, the opening of the limiting groove (222) faces downwards, the limiting block (214) is arranged in the limiting groove (222) and is abutted against the lower surface of the limiting groove, and a pressing spring (25) abutted against the gun shell (1) is arranged below the pressing part (223).

2. The mechanical lock device for the charging gun according to claim 1, wherein two opposite pin holders (13) are arranged in the accommodating cavity (11), through holes (131) are formed in the pin holders (13), pin holes (215) are formed in the connecting portions (213), shaft holes (224) are formed in the pivoting portions (221), the pivoting portions (221) are formed in the two pin holders (13), the connecting portions (213) are formed in the pivoting portions (221), and the through holes (131), the shaft holes (224) and the pin holes (215) are coaxially distributed and are connected through penetrating fixing pins (23).

3. The mechanical lock device for a charging gun according to claim 1, further comprising an electronic lock (4) arranged in the accommodating cavity (11) and electrically connected with the micro switch (3), wherein the lock cylinder assembly (41) on the electronic lock (4) is positioned below the pressing part (223), and the lower surface of the pressing part (223) is provided with a lug (225) corresponding to the position of the lock cylinder assembly (41).

4. A mechanical lock device for a charging gun according to claim 3, characterized in that an unlocking hole (14) is formed in the side face of the gun housing (1), an unlocking button (5) is installed in the unlocking hole (14), and the end portion of the unlocking button (5) extends into the accommodating cavity (11) to correspond to the lock cylinder assembly (41).

5. The mechanical lock device for the charging gun according to claim 1, wherein the upper surface of the contact portion (212) is provided with a first spring groove (216), the lower surface of the top cover (12) is provided with a limit post (121), the upper end of the hook spring (24) is sleeved outside the limit post (121), and the lower end of the hook spring (24) is arranged in the first spring groove (216).

6. The mechanical lock device for the charging gun according to claim 1, wherein a second spring groove (226) is formed in the lower surface of the pressing portion (223), the pressing spring (25) is arranged in the second spring groove (226), and the upper end and the lower end of the pressing spring (25) are respectively abutted against the pressing portion (223) and the gun case (1).

7. The mechanical lock device of the charging gun according to claim 1, wherein a fixing plate (6) is pressed above the micro switch (3), and the fixing plate (6) is fixedly connected with the gun shell (1) through bolts.

8. A charging gun, characterized by comprising a hollow gun shell (1), wherein the top of the gun shell (1) is provided with a containing cavity (11) and a top cover (12) covering an upper opening of the containing cavity (11), and the containing cavity (11) is internally provided with the mechanical locking device of the charging gun according to any one of claims 1-7.

9. The charging gun according to claim 8, wherein the top cover (12) is provided with a mounting hole (15), and the top of the pressing portion (223) is disposed in the mounting hole (15).

10. A charging gun according to claim 8, characterized in that the bottom of the receiving cavity (11) is provided with an electron wire sealing ring (7) communicated with the inner cavity of the gun shell (1) in a penetrating way for connecting the electron wires.