A safety locking device for an electric vehicle charging gun

Abstract

The present invention discloses a safety locking device for an electric vehicle charging gun, comprising a charging gun muzzle arranged at one end of the gun body of the electric vehicle charging gun, the charging gun muzzle comprising a collar, a bayonet, a fixed shaft, a booster body and a ramp, the collar is connected to the gun body, the ramp is arranged on the inner side of the collar, the fixed shaft is fixed at the middle position of the collar, the bayonet is arranged around the fixed shaft, and the bayonet is connected to the ramp, and a booster body is arranged between the fixed shaft and the bayonet; when the electric vehicle is charged, the electric control transmission rod of the electric vehicle slides with the ramp and slides into the bayonet under the limit control of the booster body. The present invention can make the dome part of the electric control transmission rod inserted into the bayonet according to the bayonet diameter, so as to improve the efficient locking control ability of the device.

Description

Technical Field

[0001] The invention relates to a safety locking device for a charging gun of an electric vehicle, belonging to the technical field of new energy vehicles. Background Art

[0002] New energy vehicles can also be called electric vehicles. They need to charge the rechargeable batteries from time to time. The charging place is similar to a gas station. Charging piles are set up in the charging place. The electric vehicles are charged by the charging guns on the charging piles. However, the charging process is different from the refueling process. The charging time is often longer, which takes dozens of minutes or even several hours. In order to ensure the charging safety of electric vehicles, a safety locking device needs to be set. The existing safety locking device of the electric vehicle charging gun will have the following disadvantages when used:

[0003] Under normal circumstances, there are three bayonet sockets in the charging gun muzzle that match the electric control transmission rod, and the dome of the electric control transmission rod is made of soft conductive material. It will slide into the bayonet through the guidance of the slope, and the triangular fixing method will lock the charging. However, when the electric control transmission rod slides to the edge of the bayonet on the slope, its dome part will gradually deform into a state of thinner one side and thicker one side according to the inclination angle of the slope, so that the thinner part will first roll up and be detained at the edge of the bayonet, resulting in the subsequent thicker part entering the bayonet. There will be a tendency of retention and accumulation, causing the electric control transmission rod to deflect toward the outside of the bayonet. It will not rebound into the bayonet until it reaches a certain critical point, reducing the bayonet's efficient locking and control ability of the electric control transmission rod. Summary of the invention

[0004] In order to solve the problems existing in the prior art, the present invention proposes a safety locking device for an electric vehicle charging gun. By means of a booster body arranged between the bayonet and the fixed shaft, it ensures that the dome part of the electric control transmission rod is inserted into the bayonet in a gathered and stacked state according to the bayonet diameter, thereby improving the bayonet's efficient locking control capability of the electric control transmission rod.

[0005] In order to solve the above technical problems, the present invention adopts the following technical means:

[0006] The present invention proposes a safety locking device for an electric vehicle charging gun, comprising a charging gun muzzle arranged at one end of a gun body of the electric vehicle charging gun, the charging gun muzzle comprising a collar, a bayonet, a fixed shaft, a booster and a ramp, the collar is connected to the gun body, the ramp is arranged on the inner side of the collar, the fixed shaft is fixed at the middle position of the collar, the bayonet is arranged around the fixed shaft, the bayonet is connected to the ramp, and a booster is arranged between the fixed shaft and the collar;

[0007] When the electric vehicle is charged, the electric control transmission rod of the electric vehicle slides with the slope and slides into the bayonet under the limit control of the power-assisting body.

[0008] Furthermore, the power-assisting body includes an extension spoon, a hanging sleeve, a propulsion pad, a through handle and a correction clamp. The through handle is a V-shaped structure, the tip of the through handle faces the bayonet, the tip of the through handle is connected to the hanging sleeve, one end of the two propulsion pads are respectively connected to the two sides of the hanging sleeve, and the other ends of the two propulsion pads are respectively connected to the correction clamp, the through handle and the two propulsion pads are matched through the gap of the hanging sleeve, and the two ends of the through handle are respectively movably connected to the two extension spoons.

[0009] Furthermore, the penetration is movably engaged between the bayonet and the fixed shaft.

[0010] Furthermore, the hanging sleeve includes a joint lock, a diplomatic ring, a circular frame, a limit piece, and an elastic pocket. The diplomatic ring is connected to a fixed axis. The diplomatic ring, the circular frame, and the elastic pocket are all arc-shaped. The three are stacked in the order of circular frame, diplomatic ring, and elastic pocket. The joint lock is connected between the circular frame and the elastic pocket and cooperates with the gap of the propulsion pad. The limit piece is arranged between the circular frame and the diplomatic ring.

[0011] Furthermore, the through handle passes through the gap between the elastic pocket and the round frame, and is slidably matched with the elastic pocket and the round frame, and the propulsion pad is matched with the gap between the elastic pocket and the round frame.

[0012] Furthermore, the limiting component includes a buckle handle, a bullet bag, an active cavity, a connecting sleeve, a traction rod and a transition handle, wherein one end of the buckle handle is connected to the transition handle, and the other end of the buckle handle is connected to the active cavity through a connecting sleeve, the active cavity is connected to the traction rod through the connecting sleeve, the traction rod is movably engaged on the through handle, and the transition handle is slidably fitted on the circular frame through a foreign ring.

[0013] Furthermore, the correction clip includes a hem pressure plate, a pointing arrow, an adjustment control unit, a buckle and a folding push plate, wherein the hem pressure plate is movably connected to the upper side of the pointing arrow, the folding push plate is fixedly connected to the lower side of the pointing arrow, the hem pressure plate and the folding push plate are gap-fitted on the extension spoon and the through handle, the hem pressure plate, the pointing arrow and the folding push plate together form a cavity arched toward the bayonet side, and the side edge of the pointing arrow is gap-fitted with the adjustment control unit through the buckle.

[0014] Furthermore, the adjustment control unit includes a balancing plate, a semi-ring frame, a receiving channel and a progressive block, wherein the progressive block is installed between the balancing plate and the semi-ring frame, the semi-ring frame is connected to the buckle and cooperates with the ramp gap, the semi-ring frame slides with the receiving channel, and the receiving channel is clamped on the propulsion pad.

[0015] The following advantages can be obtained by using the above technical means:

[0016] The present invention proposes a safety locking device for an electric vehicle charging gun. When the electric vehicle is charging, an electric control transmission rod is pushed into the charging gun muzzle of the electric vehicle along a slope. The dome part of the electric control transmission rod is deformed according to the inclination angle of the slope and contacts a power-assisting body of a bayonet attachment. The power-assisting body limits the position of the dome part of the electric control transmission rod and guides the movement direction, so that the dome part of the electric control transmission rod is inserted into the bayonet according to the bayonet diameter in a gathered and stacked state, thereby improving the efficient locking control capability of the device.

[0017] In the device of the present invention, after the dome portion of the electric-controlled transmission rod is deformed, its thinner portion pushes the correction clamp to slide along the upper edge of the extension spoon while deforming toward the hanging sleeve with the help of the propulsion pad. The hanging sleeve controls the through-handle to swing on the fixed axis, so that the correction clamp can receive and clamp the edge of the electric-controlled transmission rod. The hanging sleeve and the correction clamp cooperate with each other on the through-handle, so that the thinner portion of the electric-controlled transmission rod is gathered and accumulated on the through-handle, and finally merges with the thicker portion of the electric-controlled transmission rod and is inserted into the bayonet together. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic structural diagram of a safety locking device for an electric vehicle charging gun of the present invention;

[0019] Figure 2 It is a schematic diagram of the planar structure of the charging muzzle in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the structure of the power-assisting body in an embodiment of the present invention;

[0021] Figure 4 It is a structural schematic diagram of a hanging sleeve in an embodiment of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure of the limiter in the embodiment of the present invention;

[0023] Figure 6 This is a schematic diagram of the structure of the correction clip in an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the structure of the adjustment control in an embodiment of the present invention;

[0025] In the figure: electric control transmission rod-1, socket-2, charging muzzle-3, charging handle-4, charging button-5, gun body-6, collar-31, bayonet-32, fixed shaft-33, booster-34, ramp-35, extension spoon-341, hanging sleeve-342, propulsion pad-343, through handle-344, correction clip-345, joint lock-2a1, diplomatic ring-2a2, round frame-2a3 , limit piece-2a4, elastic pocket-2a5, buckle handle-a41, bullet bag-a42, movable cavity-a43, connecting sleeve-a44, traction rod-a45, transition handle-a46, hem pressure piece-5b1, pointing arrow-5b2, adjustment control unit-5b3, buckle-5b4, folding push plate-5b5, balance plate-b31, semi-ring frame-b32, receiving channel-b33, progressive block-b34. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below in conjunction with the accompanying drawings:

[0027] Embodiment 1:

[0028] The present invention proposes a safety locking device for an electric vehicle charging gun, such as Figure 1 As shown, it mainly includes an electric control transmission rod 1, a socket 2, a charging muzzle 3, a charging handle 4, a charging button 5, and a gun body 6, wherein the charging muzzle 3 is arranged at one end of the gun body 6, the charging button 5 is arranged at the other end of the gun body 6, the charging handle 4 is arranged on the side of the gun body 6, the socket 2 is provided with a cavity, the electric control transmission rod 1 is fixedly connected in the cavity of the socket 2, and the charging muzzle 3 and the gun body 6 are gap-matched, and the charging muzzle 3, the charging handle 4, the charging button 5 and the gun body 6 are all electrically connected. The charging muzzle 3 is used to connect the electric control transmission rod 1 to charge the electric vehicle, the charging handle 4 facilitates the hand-held electric vehicle charging gun, the charging button 5 is used to control the charging power supply, and the gun body 6 is provided with an electric vehicle charging circuit.

[0029] like Figure 2 As shown, the charging muzzle 3 includes a ring 31, a bayonet 32, a fixed shaft 33, a power-assisting body 34, and a slope 35. The ring 31 is fixedly connected to the gun body 6, the slope 35 is arranged on the inner side of the ring 31, the fixed shaft 33 is welded to the middle position of the ring 31, and a plurality of bayonet 32 ​​are evenly distributed around the fixed shaft 33. The bayonet 32 ​​is embedded in the slope 35 for inserting the electric control transmission rod 1. The power-assisting body 34 is arranged between the bayonet 32 ​​and the fixed shaft 33 for assisting in controlling the insertion of the electric control transmission rod 1.

[0030] The booster body 34 is a symmetrical structure. Figure 3As shown, the power-assisting body 34 includes an extension spoon 341, a hanging sleeve 342, a propulsion pad 343, a through handle 344 and a correction clip 345, wherein the through handle 344 is a main structure of the power-assisting body 34, the through handle 344 is a "V"-shaped structure, and its tip faces the bayonet 32, the hanging sleeve 342 is installed on the tip of the through handle 344, and a propulsion pad 343 is connected to each side of the hanging sleeve 342, and a correction clip 345 is connected to the end of each propulsion pad 343. The extension spoon 341 is slidably fitted in the collar 31 through the through handle 344, and the extension spoon 341 can move along the through handle 344, the hanging sleeve 342 is fixedly connected to the fixed shaft 33, the through handle 344 is gap-fitted with the propulsion pad 343 through the hanging sleeve 342, and the propulsion pad 343 is transitionally fitted on the correction clip 345. The through-hole 344 is movably engaged between the bayonet 32 ​​and the fixed shaft 33, so that the filling force between the bayonet 32 ​​and the fixed shaft 33 is more compact, and the impact resistance and extrusion resistance of the electric control transmission rod 1 when sliding is enhanced.

[0031] When the electric vehicle is charging, the electric control transmission rod 1 slides with the slope 35 and enters the charging muzzle 3 along the slope 5. When the dome portion of the electric control transmission rod 1 is deformed according to the inclination angle of the slope 35, the deformed electric control transmission rod 1 pushes the correction clamp 345 and the extension spoon 341, so that the correction clamp 345 slides along the extension spoon 341 and deforms toward the hanging sleeve 342 with the help of the propulsion pad 343. The extension spoon 341 applies force to the hanging sleeve 342. After the hanging sleeve 342 is subjected to the force, it controls the penetrating handle 344 to swing. On the fixed shaft 33, since the through handle 344 is engaged between the bayonet 32 ​​and the fixed shaft 33, the hanging sleeve 342 and the correction clamp 345 cooperate with each other on the through handle 344, so that the correction clamp 345 can be received and clamped with the edge of the electric control transmission rod 1, ensuring that its dome part is inserted into the bayonet 32 ​​in a gathered and stacked state according to the diameter of the bayonet 32, avoiding the electric control transmission rod from deflecting toward the outside of the bayonet, improving the locking ability of the bayonet on the electric control transmission rod, and improving the efficient locking control ability of the device.

[0032] Embodiment 2:

[0033] On the basis of Example 1, the present invention also discloses the following structure:

[0034] like Figure 4As shown, the hanging sleeve 342 includes a joint lock 2a1, a diplomatic ring 2a2, a circular frame 2a3, a limit piece 2a4, and an elastic pocket 2a5, wherein the joint lock 2a1 is welded between the circular frame 2a3 and the elastic pocket 2a5, and is clearance-matched with the propulsion pad 343, the diplomatic ring 2a2 is located between the circular frame 2a3 and the elastic pocket 2a5 and is fixedly connected to the fixed shaft 33, the diplomatic ring 2a2, the circular frame 2a3 and the elastic pocket 2a5 are all arc-shaped, and the three are stacked in the order of the circular frame 2a3, the diplomatic ring 2a2, and the elastic pocket 2a5, the top of the diplomatic ring 2a2 is higher than the circular frame 2a3 and the elastic pocket 2a5, the circular frame 2a3 is provided with a limit piece 2a4 through the diplomatic ring 2a2, the elastic pocket 2a5 and the circular frame 2a3 are slidingly matched with the through handle 344, and the elastic pocket 2a5 and the circular frame 2a3 are also clearance-matched with the propulsion pad 343, thereby strengthening the connection relationship between the structures.

[0035] The limiting member 2a4 is an "eight" shaped structure, such as Figure 5 As shown, the limiting member 2a4 includes a buckle handle a41, a bomb bag a42, an active cavity a43, a connecting sleeve a44, a traction rod a45, and a transition handle a46, wherein one end of the buckle handle a41 is fixedly connected to the transition handle a46, the other end of the buckle handle a41 is hinged to the active cavity a43 through the connecting sleeve a44, the active cavity a43 is sleeved on the guide rod a45 through the connecting sleeve a44, the traction rod a45 is movably engaged on the through handle 344, and the transition handle a46 is slidably fitted on the circular frame 2a3 through the diplomatic ring 2a2.

[0036] from Figure 3 It can be seen that the correction clip 345 is a structure that arches toward the side of the bayonet 32. Figure 6 As shown, the correction clamp 345 includes a hem pressure piece 5b1, an arrow pointing 5b2, an adjustment control unit 5b3, a buckle 5b4, and a folding push plate 5b5, wherein the arrow pointing 5b2 is arched toward the bayonet 32 ​​side, the hem pressure piece 5b1 is hinged on the upper side of the arrow pointing 5b2, and the folding push plate 5b5 is fixed to the lower side of the arrow pointing 5b2. The hem pressure piece 5b1 and the folding push plate 5b5 are respectively clearance-matched with the extension spoon 341 and the through handle 344. The hem pressure piece 5b1, the arrow pointing 5b2 and the folding push plate 5b5 together constitute a cavity that is arched toward the bayonet 32 ​​side and inclined toward the adjustment control unit 5b3 side, which can be used to support and pull the electric control transmission rod 1, and the side of the arrow pointing 5b2 is clearance-matched with the adjustment control unit 5b3 through the buckle 5b4.

[0037] like Figure 7As shown, the adjustment control unit 5b3 includes a balancing plate b31, a semi-ring frame b32, a receiving channel b33, and a progressive block b34, wherein the receiving channel b33 is composed of two inclined plates, the central axis of the receiving channel b33 is close to the bayonet 32, and the two side edges of the receiving channel b33 are away from the bayonet 32, the balancing plate b31 is installed on the side of the receiving channel b33 away from the bayonet 32, and the progressive block b34 is connected between the balancing plate b31 and the semi-ring frame b32, the balancing plate b31 and the semi-ring frame b32 are hinged to the progressive block b34 respectively, the semi-ring frame b32 is also slidably matched with the receiving channel b33, the semi-ring frame b32 can slide along the inclined surface of the receiving channel b33, and the receiving channel b33 can be movably engaged on the propulsion pad 343, so that the correction clamp 345 is movably connected to the propulsion pad 343.

[0038] The semi-ring frame b32 is fixedly connected to the buckle 5b4, and is gap-fitted on the slope 35. It is interwoven layer by layer on the through-handle 344 through the limiting piece 2a4 between the diplomatic ring 2a2 and the elastic pocket 2a5, and can serve as the main force for the movable arrestment of the through-handle 344, which is conducive to changing the inclination angle of the through-handle 344 on the fixed axis 33, and further ensuring the stability of the through-handle 344 during movement.

[0039] In the embodiment of the present invention, the patterns on the lower pressure plate 5b1 and the folding push plate 5b5 are consistent with the slope 35. When the dome portion (soft conductive material) of the electric control transmission rod 1 enters the charging muzzle along the slope 5, the lower pressure plate 5b1 and the folding push plate 5b5 can approach each other on the pointing arrow 5b2, providing corresponding guiding capabilities, making it easy to support the dome of the electric control transmission rod 1 for shaping, and effectively controlling the degree of its displacement.

[0040] The working principle of the safety locking device of the present invention is as follows:

[0041] When charging with an electric vehicle charging gun, when the electric control transmission rod 1 in the electric vehicle socket 2 slides on the slope 35 to the edge of the bayonet 32, in order to avoid the problem that the dome portion thereof gradually deforms into a state of being thinner on one side and thicker on the other side according to the inclination angle of the slope 35, and the thinner part is first rolled up and buckled at the edge of the bayonet 32, a booster 34 is provided on the slope 35 of the present invention. When the thinner part of the electric control transmission rod 1 gradually extends into the bayonet 32, since the extension spoon 341 of the power-assisting body 34 extends at the bayonet 32 ​​and is located at the outermost part, the thinner part will first push the extension spoon 341, causing the extension spoon 341 to gradually slide along the ring 31 toward the tip of the through handle 344, thereby providing a guiding force in the same direction for the through handle 344 to swing in the hanging sleeve 342, and at the same time making room for the opening of the correction clamp 345; as the extension spoon 341 is pushed by the electric control transmission rod 1 to open the bayonet 32, the thinner part of the electric control transmission rod 1 contacts the correction clamp 345, and the thinner part of the electric control transmission rod 1 squeezes the correction clamp 345. 45, the hem pressing piece 5b1 close to the ring 31, the hem pressing piece 5b1 opens accordingly, the thinner part of the electric control transmission rod 1 enters the direction arrow 5b2 between the hem pressing piece 5b1 and the folding push plate 5b5, and slides into the correction clamp 345 along the arc structure of the arrow 5b2. At this point, the thinner part of the electric control transmission rod 1 is pressed and held by the hem pressing piece 5b1, supported by the folding push plate 5b5, and transitions to the semi-ring frame b32 in the middle of the correction clamp 345 under the guidance of the arrow 5b2. After the thinner part of the electric control transmission rod 1 contacts the semi-ring frame b32, the semi-ring frame b32 moves from the central axis position of the receiving channel b33 to the receiving channel b34. The side of b33 slides, thereby opening the distance between the two half-ring frames b32 in the middle of the correction clamp 345. The half-ring frame b32 relies on the buckle 5b4 with the help of the progressive block b34, thereby tilting and supporting the balance plate b31 to arch in the direction of the receiving path b33; after the extension spoon 341 slides toward the tip of the through handle 344, it will inevitably press downward on the outermost diplomatic circle 2a2 of the hanging sleeve 342. After the diplomatic circle 2a2 is stressed, it rolls on the fixed shaft 33, thereby relaxing the restrictions on the circular frame 2a3 and the limiter 2a4, and the movable cavity a43 in the limiter 2a4 can be opened to both sides, with the help of the elastic fingers of the cartridge a42 and the traction rod a45. The guide can further push the "V" structure of the penetrating handle 344. At the same time, as the active cavity a43 opens, the connecting sleeve a44 outside the active cavity a43 will support the buckle handle a41, and then control the transition handle a46 to push the rolled diplomatic ring 2a2, so that the diplomatic ring 2a2 extends horizontally on the circular frame 2a3, and the top of the diplomatic ring 2a2 is bent on the elastic pocket 2a5, so that the elastic pocket 2a5 is accumulated on the circular frame 2a3, and the circular frame 2a3 is pushed to extend with the joint lock 2a1 as the fulcrum. The extended circular frame 2a3 is pressed on the propulsion pad 343, so that the propulsion pad 343 moves toward the correction clamp 345 under the action of the extrusion force; Figure 6It can be seen that the correction clamp 345 is a symmetrical structure. Both sides of the correction clamp 345 are provided with a hem pressure piece 5b1 and a folding push plate 5b5. The thinner part of the electric control transmission rod 1 enters the hem pressure piece 5b1 and the folding push plate 5b5 close to the ring 31 and away from the hanging sleeve 342 from the outside of the power-assisting body 34, and the propulsion pad 343 enters the hem pressure piece 5b1 and the folding push plate 5b5 away from the ring 31 and close to the hanging sleeve 342 from the inside of the power-assisting body 34. The propulsion pad 343 can be blocked on the buckle 5b4 in the middle of the correction clamp 345 when it is sliding. The thinner part of the electric control transmission rod 1 is blocked; after the thinner part of the electric control transmission rod 1 is blocked, it gathers along the arched direction of the balance plate b31, increases the thickness on the penetration handle 344, and gradually overlaps with the thicker part of the electric control transmission rod 1, and then the "V" structure of the penetration handle 344 is brought together and closed, and the tip of the "V" structure of the penetration handle 344 is guided to the bayonet 32, and finally the dome part of the electric control transmission rod 1 is completely taken up and pulled into the bayonet 32 ​​to be vertically inserted, thereby ensuring the efficient locking control capability of the device.

[0042] In the description of the present invention, it should be understood that the terms "center", "lateral", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The device of the present invention can solve the problems existing in the existing safety locking device of the electric vehicle charging gun. The device of the present invention utilizes a hanging sleeve and a correction clamp to cooperate with each other on the through handle, so that the dome part of the electric control transmission rod can be inserted into the bayonet according to the bayonet diameter, effectively improving the safety locking effect of the electric vehicle charging gun and improving the efficient locking control capability.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A safety locking device for an electric vehicle charging gun, characterized in that: The charging gun muzzle (3) is provided at one end of a gun body (6) of an electric vehicle charging gun, wherein the charging gun muzzle (3) comprises a collar (31), a bayonet (32), a fixed shaft (33), a booster (34) and a slope (35), wherein the collar (31) is connected to the gun body (6), the slope (35) is provided inside the collar (31), the fixed shaft (33) is fixed at a middle position of the collar (31), the bayonet (32) is provided around the fixed shaft (33), and the bayonet (32) is connected to the slope (35), and a booster (34) is provided between the fixed shaft (33) and the collar (32); When the electric vehicle is charged, the electric control transmission rod (1) of the electric vehicle slides with the slope (35) and slides down into the bayonet (32) under the limit control of the booster body (34); The booster body (34) comprises an extension spoon (341), a hanging sleeve (342), a propulsion pad (343), a through handle (344) and a correction clip (345); the through handle (344) is a V-shaped structure; the tip of the through handle (344) faces the bayonet (32); the tip of the through handle (344) is connected to the hanging sleeve (342); one end of the two propulsion pads (343) are respectively connected to the two sides of the hanging sleeve (342); the other ends of the two propulsion pads (343) are respectively connected to the correction clip (345); the through handle (344) and the two propulsion pads (343) are clearance-matched through the hanging sleeve (342); and the two ends of the through handle (344) are respectively movably connected to the two extension spoons (341); The hanging sleeve (342) comprises a joint lock (2a1), a diplomatic ring (2a2), a circular frame (2a3), a limiting piece (2a4), and an elastic pocket (2a5); the diplomatic ring (2a2) is connected to the fixed shaft (33); the diplomatic ring (2a2), the circular frame (2a3), and the elastic pocket (2a5) are all arc-shaped; the three are arranged in a stacked manner in the order of the circular frame (2a3), the diplomatic ring (2a2), and the elastic pocket (2a5); the joint lock (2a1) is connected between the circular frame (2a3) and the elastic pocket (2a5), and is clearance-matched with the propulsion pad (343); and the limiting piece (2a4) is arranged between the circular frame (2a3) and the diplomatic ring (2a2); The limiting member (2a4) comprises a buckle handle (a41), a cartridge (a42), an active cavity (a43), a connecting sleeve (a44), a traction rod (a45) and a transition handle (a46), wherein one end of the buckle handle (a41) is connected to the transition handle (a46), the other end of the buckle handle (a41) is connected to the active cavity (a43) via the connecting sleeve (a44), the active cavity (a43) is connected to the traction rod (a45) via the connecting sleeve (a44), the traction rod (a45) is movably engaged with the through handle (344), and the transition handle (a46) is slidably engaged with the circular frame (2a3) via a foreign ring (2a2).

2. A safety locking device for an electric vehicle charging gun according to claim 1, characterized in that: The through handle (344) is movably engaged between the bayonet (32) and the fixed shaft (33).

3. A safety locking device for an electric vehicle charging gun according to claim 1, characterized in that: The through handle (344) passes through the gap between the elastic pocket (2a5) and the circular frame (2a3) and is slidably matched with the elastic pocket (2a5) and the circular frame. The propulsion pad (343) is gap-matched with the elastic pocket (2a5) and the circular frame.

4. A safety locking device for an electric vehicle charging gun according to claim 1, characterized in that: The correction clip (345) comprises a lower hem pressure piece (5b1), a pointing arrow (5b2), an adjustment control unit (5b3), a buckle (5b4) and a folding push plate (5b5), wherein the lower hem pressure piece (5b1) is movably connected to the upper side of the pointing arrow (5b2), the folding push plate (5b5) is fixedly connected to the lower side of the pointing arrow (5b2), the lower hem pressure piece (5b1) and the folding push plate (5b5) are gap-fitted on the extension spoon (341) and the through handle (344), the lower hem pressure piece (5b1), the pointing arrow (5b2) and the folding push plate (5b5) together form a cavity that arches toward the side of the bayonet (32), and the side of the pointing arrow (5b2) is gap-fitted with the adjustment control unit (5b3) through the buckle (5b4).

5. A safety locking device for an electric vehicle charging gun according to claim 4, characterized in that: The adjustment control unit (5b3) comprises a balancing plate (b31), a semi-ring frame (b32), a receiving channel (b33) and a progressive block (b34), wherein the progressive block (b34) is installed between the balancing plate (b31) and the semi-ring frame (b32), the semi-ring frame (b32) is connected to the buckle (5b4) and is clearance-matched with the ramp (35), the semi-ring frame (b32) is slidingly matched with the receiving channel (b33), and the receiving channel (b33) is clamped on the propulsion pad (343).

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