Automobile charging gun locking device

Abstract

The utility model discloses an automobile charging gun locking device which comprises an installation box body, a locking rod arranged on the installation box body in a linear sliding mode, a driving assembly used for driving the locking rod to move in the axial direction and a mechanical unlocking assembly used for driving the locking rod to retract and unlock. The electric driving structure drives the locking rod to axially move to achieve locking and unlocking between the charging gun and the charging socket, meanwhile, the manual mechanical unlocking structure is arranged, and when the electric driving structure breaks down or needs emergency unlocking, the mechanical unlocking structure can rapidly drive the locking rod to retract and unlock, so that the charging gun and the charging socket are locked and unlocked. The overall stability of the locking device is greatly improved, due to the fact that the driving assembly is of a worm and gear structure, transmission between the worm and the locking sliding block is free of self-locking in the two directions, and therefore the driving stability of the mechanical unlocking assembly to the locking rod is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile charging equipment, in particular to a locking device for an automobile charging gun. Background Art

[0002] With the rapid development of the new energy vehicle industry, the number of charging piles is increasing day by day. Due to the characteristics of large current and high voltage in the charging of new energy vehicles, in order to improve the safety of fast charging of new energy vehicles, it is stipulated that a locking device should be set between the charging gun and the charging socket, so as to prevent the charging gun from being accidentally pulled out during the charging process of the new energy vehicle and causing safety accidents.

[0003] The existing locking devices are relatively complex in driving structure, resulting in poor overall compactness of the locking device. Moreover, most of them adopt electronic driving methods and do not have a mechanical unlocking structure, so the emergency response ability is poor when the electronic driving structure fails. Summary of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a locking device for an automobile charging gun with a simple structure and strong unlocking reliability.

[0005] To achieve the above objectives, the utility model is realized through the following technical solutions.

[0006] The present application provides a locking device for an automobile charging gun, including an installation box body, on which a locking rod is linearly slidably arranged;

[0007] Wherein, a driving component connected to the locking rod and used for driving the axial movement of the locking rod, and a mechanical unlocking component used for driving the retraction and unlocking of the locking rod are further arranged on the installation box body.

[0008] Further defined, in the above-mentioned locking device for an automobile charging gun, the driving component includes a worm rotatably arranged on the installation box body, a locking slider threadedly connected to the worm, and a motor used for driving the rotation of the worm;

[0009] Wherein, the locking rod is fixedly arranged on the locking slider.

[0010] Further defined, in the above-mentioned locking device for an automobile charging gun, the driving component further includes a reduction gear component connected to the power output end of the motor, a driving wheel connected to the power output end of the reduction gear component, and a driven wheel fixedly arranged on the worm and coupled with the driving wheel;

[0011] Wherein, when the driving wheel rotates, it can drive the driven wheel to rotate synchronously.

[0012] Further defined, in the above-mentioned vehicle charging gun locking device, the driving assembly further includes a control board fixedly arranged on the mounting box body and connected to the motor.

[0013] Further defined, in the above-mentioned vehicle charging gun locking device, it further includes an induction assembly for monitoring the telescopic stroke of the locking rod.

[0014] Further defined, in the above-mentioned vehicle charging gun locking device, the induction assembly includes a detection piece fixedly arranged on the locking slider, and at least one coupling piece is arranged on the control board;

[0015] Wherein, the length direction of the coupling piece is parallel to the axial direction of the locking rod, and the metal elastic piece on the detection piece abuts against the coupling piece at the corresponding position.

[0016] Further defined, in the above-mentioned vehicle charging gun locking device, the mechanical unlocking assembly includes an unlocking slider linearly slidably arranged on the mounting box body, and an adapter plate and a traction piece are fixedly arranged on the unlocking slider;

[0017] An elastic reset member is installed between the unlocking slider and the mounting box body, a stroke groove is arranged on the adapter plate, and a resisting block slidably connected to the stroke groove is fixedly arranged on the locking slider;

[0018] Wherein, the length direction of the stroke groove and the sliding direction of the unlocking slider are both parallel to the axial direction of the locking rod. When the locking rod is in the extended locking state, the elastic reset member does not accumulate elastic potential energy, and the resisting block is located at one end of the stroke groove close to the locking rod and does not abut or just abuts against the corresponding side wall of the stroke groove.

[0019] Further defined, in the above-mentioned vehicle charging gun locking device, the unlocking slider is arranged on the side of the locking slider away from the locking rod;

[0020] The elastic reset member is specifically arranged as a spring member and is located between the end face of the unlocking slider away from the locking slider and the corresponding side wall face of the mounting box body.

[0021] Further defined, in the above-mentioned vehicle charging gun locking device, the traction piece is specifically arranged as a traction rope and the end away from the unlocking slider extends to the outside of the mounting box body.

[0022] Further defined, in the above-mentioned vehicle charging gun locking device, a first sealing member slidably matched with the locking rod is fixedly embedded on the mounting box body;

[0023] And / or a second sealing member slidably matched with the traction piece is fixedly embedded on the mounting box body.

[0024] The present utility model has at least the following beneficial effects:

[0025] 1. The electric drive structure drives the locking rod to move axially to achieve locking and unlocking between the charging gun and the charging socket. At the same time, a manual mechanical unlocking structure is provided. When the electric drive structure fails or emergency unlocking is required, the mechanical unlocking structure can quickly drive the locking rod to retract and unlock, greatly improving the overall stability of the locking device.

[0026] 2. A worm gear structure is adopted between the worm and the locking slider. When the worm rotates, it can drive the locking slider to move. At the same time, when the mechanical unlocking component drives the locking slider to move axially along the worm to achieve manual unlocking, the worm can rotate synchronously under the movement of the locking slider, that is, the transmission between the worm and the locking slider has no self-locking in both directions, thus ensuring the driving stability of the mechanical unlocking component for the locking rod.

[0027] 3. When the locking rod moves axially, the metal elastic piece on the detecting piece abuts against the coupling piece and moves synchronously along the length direction of the coupling piece. The change in the position of the metal elastic piece on the coupling piece can be used to obtain the change in the telescopic stroke of the locking rod. After the control board obtains the change information of the telescopic stroke of the locking rod, it can determine the locking state of the locking rod, thereby controlling the working state of the motor and ensuring the accuracy of the locking and unlocking positions of the locking rod.

[0028] 4. The manual mechanical unlocking of the locking rod is realized through the traction piece. With the cooperation of the stroke groove and the abutting block, the telescopic control of the locking rod by the driving component will not interfere with the position state of the mechanical unlocking component. At the same time, the mechanical unlocking component can automatically reset through the elastic reset piece after unlocking. The locking rod can maintain the unlocked state after the mechanical unlocking component resets, which is convenient for the emergency disconnection between the charging gun and the charging socket, greatly improving the safety during charging.

[0029] 5. The internal cavity of the installation box can be sealed by the first sealing member and the second sealing member, thereby preventing dust from entering. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an exploded view of the structure of the locking device of the vehicle charging gun according to the embodiment of the present application;

[0031] Figure 2 It is a schematic view of the structure of the locking device of the vehicle charging gun according to the embodiment of the present application in the locked state with the "top cover 120" hidden;

[0032] Figure 3 It is an exploded view of the structure of the locking device of the vehicle charging gun according to the embodiment of the present application;

[0033] Figure 4 It is an exploded view of the structure of the locking device of the vehicle charging gun according to the embodiment of the present application;

[0034] Figure 5 This is an enlarged structural schematic diagram of the "metal elastic sheet 351" and "coupling sheet 341" in the vehicle charging gun locking device according to the embodiment of the present application;

[0035] Figure 6 This is an exploded structural schematic diagram of the "base 110" in the vehicle charging gun locking device according to the embodiment of the present application;

[0036] Figure 7 This is a structural schematic diagram of the vehicle charging gun locking device according to the embodiment of the present application in the mechanical unlocking state with the "top cover 120" hidden.

[0037] Reference numerals

[0038] Base - 110, locking perforation - 111, unlocking perforation - 112, wiring perforation - 113, top cover - 120, locking rod - 200, driving assembly - 300, worm - 310, locking slider - 320, abutting block - 321, motor - 330, control board - 340, coupling sheet - 341, detection piece - 350, metal elastic sheet - 351, reduction gear assembly - 360, driven wheel - 370, driving wheel - 380, limiting frame - 390, mechanical unlocking assembly - 400, unlocking slider - 410, connecting plate - 420, travel groove - 421, traction piece - 430, elastic reset piece - 440, first sealing member - 510, second sealing member - 520, third sealing member - 530. Detailed implementation manners

[0039] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0040] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order different from those illustrated or described herein, and the objects distinguished by "first", "second", etc. generally belong to the same category, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the associated objects.

[0041] Next, the vehicle charging gun locking device provided by the embodiments of the present application will be described in detail in conjunction with the accompanying drawings through specific embodiments and their application scenarios.

[0042] As Figures 1 to 7 shown, an embodiment of the present application provides a locking device for an automotive charging gun, including a mounting box body, on which a locking rod 200 for locking the charging gun and the charging socket is linearly slidably arranged.

[0043] Wherein, a driving assembly 300 for driving the axial movement of the locking rod 200 and a mechanical unlocking assembly 400 for driving the retraction and unlocking of the locking rod 200 are further arranged on the mounting box body.

[0044] It can be understood that the driving assembly 300 adopts an electric control structure, while the mechanical unlocking assembly 400 adopts a manual mechanical control structure. When the mechanical unlocking assembly 400 drives the locking rod 200 to unlock, the driving assembly 300 does not interfere with the movement of the locking rod 200.

[0045] In the embodiment of the present application, by adopting the above-mentioned locking device for an automotive charging gun, the locking rod 200 is axially moved by an electric driving structure to achieve the locking and unlocking between the charging gun and the charging socket. Meanwhile, a manual mechanical unlocking structure is provided. When the electric driving structure fails or emergency unlocking is required, the mechanical unlocking structure can quickly drive the locking rod 200 to retract and unlock, greatly improving the overall stability of the locking device.

[0046] In a preferred embodiment, as Figures 1 to 5 shown, the driving assembly 300 includes a worm 310 rotatably arranged on the mounting box body, a locking slider 320 threadedly connected to the worm 310, and a motor 330 for driving the rotation of the worm 310. Wherein, the locking slider 320 is coupled with the mechanical unlocking assembly 400 and fixedly connected to the locking rod 200.

[0047] It can be understood that when the motor 330 drives the worm 310 to rotate, the locking slider 320 can be driven to move axially on the worm 310, thereby driving the locking rod 200 to move synchronously to achieve the locking or unlocking action.

[0048] In the embodiment of the present application, by adopting the above-mentioned locking device for an automotive charging gun, since a worm and worm gear structure is adopted between the worm 310 and the locking slider 320, when the worm 310 rotates, the locking slider 320 can be driven to move. Meanwhile, when the mechanical unlocking assembly 400 drives the locking slider 320 to move axially along the worm 310 to achieve manual unlocking, the worm 310 can rotate synchronously under the movement of the locking slider 320, that is, the transmission between the worm 310 and the locking slider 320 has no self-locking in both directions, thereby ensuring the driving stability of the mechanical unlocking assembly 400 for the locking rod 200.

[0049] It can be understood that, in order to prevent the locking slider 320 from rotating along with the worm 310 when the worm 310 rotates to drive the locking slider 320 to move, a rotation limiting structure for the locking slider 320 is provided inside the installation box. Specifically, it can be set as a slide rail structure for the locking slider 320 on the installation box, or a limiting stop is set in the rotation direction of the locking slider 320, as long as the movement stability of the locking slider 320 can be ensured, and no specific elaboration will be made here.

[0050] In a preferred embodiment, as Figures 1 to 5 shown, a transmission component is provided between the power output end of the motor 330 and the worm 310. The transmission component includes a reduction gear assembly 360 connected to the power output end of the motor 330, a driving wheel 380 connected to the power output end of the reduction gear assembly 360, and a driven wheel 370 fixedly arranged on the worm 310 and meshed with the driving wheel 380.

[0051] It can be understood that the reduction gear assembly 360 is mainly used to adjust the speed ratio and torque ratio between the motor 330 and the worm 310, so as to ensure the stability of the rotation control of the worm 310.

[0052] It can be understood that the transmission cooperation form between the driving wheel 380 and the driven wheel 370 is not limited to the above one. For example, a belt drive or a chain drive structure can also be set between them, as long as the two-way transmission between them can be realized, and no specific elaboration will be made here.

[0053] In a preferred embodiment, as Figures 1 to 5 shown, a receiving groove for receiving the driving wheel 380 and the driven wheel 370 is provided inside the installation box, and a limiting frame 390 is buckled at the corresponding position of the installation box with respect to the receiving groove.

[0054] Among them, the limiting frame 390 is used to limit the driven wheel 370 and the driving wheel 380, so as to ensure the rotation stability of the driven wheel 370 and the driving wheel 380.

[0055] In a preferred embodiment, as Figures 1 to 5 shown, the driving component 300 further includes a control board 340 fixedly arranged on the installation box and connected to the motor 330.

[0056] It can be understood that the control board 340 is used for the opening and closing control of the motor 330 and the adjustment of power parameters.

[0057] In a preferred embodiment, as Figures 1 to 5 shown, it further includes an induction component for monitoring the telescopic stroke of the locking rod 200.

[0058] The sensing component includes a detecting member 350 fixedly arranged on the locking slider 320. At least one coupling piece 341 is arranged on the control board 340. The length direction of the coupling piece 341 is parallel to the axial direction of the locking rod 200. The metal elastic piece 351 on the detecting member 350 abuts against the coupling piece 341 at the corresponding position.

[0059] In the embodiment of the present application, by adopting the above-mentioned locking device for an electric vehicle charging gun, when the locking rod 200 axially moves, the metal elastic piece 351 on the detecting member 350 abuts against the coupling piece 341 and synchronously moves along the length direction of the coupling piece 341. The change in the telescopic stroke of the locking rod 200 can be obtained through the change in the position of the metal elastic piece 351 on the coupling piece 341. After obtaining the change information of the telescopic stroke of the locking rod 200, the control board 340 can determine the locking state of the locking rod 200, thereby controlling the working state of the motor 330 to ensure the accuracy of the locking and unlocking positions of the locking rod 200.

[0060] It can be understood that the structural form of the sensing component is not limited to the above one. For example, a stroke sensor can be arranged on the locking slider 320, or a rotary encoder can be directly arranged on the motor 330, and the corresponding relationship between the number of rotations of the motor 330 and the position of the locking rod 200 is established. Based on the encoder data, the real-time position of the locking rod 200 is calculated. As long as the position monitoring of the locking rod 200 can be realized, it will not be specifically described here.

[0061] In a preferred embodiment, as Figures 1 to 5 shown, the mechanical unlocking component 400 includes an unlocking slider 410 linearly and slidably arranged on the installation box body. An adapter plate 420 coupled to the locking slider 320 and a traction member 430 for manually driving the unlocking slider 410 to move are fixedly arranged on the unlocking slider 410.

[0062] A stroke groove 421 is arranged on the adapter plate 420. A abutting block 321 slidably connected to the stroke groove 421 is fixedly arranged on the locking slider 320. Among them, the length direction of the stroke groove 421 and the sliding direction of the unlocking slider 410 are both parallel to the axial direction of the locking rod 200. An elastic reset member 440 is also installed between the unlocking slider 410 and the installation box body.

[0063] As Figure 2 shown, when the locking rod 200 is in the extended and locked state, the metal elastic piece 351 on the detecting member 350 abuts against the corresponding position on the coupling piece 341 and is calibrated as the locking state of the locking rod 200. The locking slider 320 is located at one end of the worm 310 close to the locking rod 200. The elastic reset member 440 does not accumulate elastic potential energy. The abutting block 321 is located at one end of the stroke groove 421 close to the locking rod 200 and does not abut or just abuts against the corresponding side wall of the stroke groove 421.

[0064] As Figure 7As shown in the figure, when the locking lever 200 is manually unlocked through the mechanical unlocking assembly 400, a force is manually applied to the traction member 430 on the side away from the locking lever 200, thereby driving the unlocking slider 410 and the connecting plate 420 to move away from the locking lever 200. During this process, the elastic reset member 440 accumulates elastic potential energy. The groove wall on the side of the travel groove 421 close to the locking lever 200 abuts against the abutting block 321 and drives the abutting block 321 and the locking slider 320 to move away from the locking lever 200, thereby driving the locking lever 200 to retract and unlock. During the movement of the locking slider 320, the worm 310 rotates synchronously, and the metal elastic piece 351 on the detection member 350 moves on the coupling piece 341 and records the change in the telescopic stroke of the locking lever 200.

[0065] It can be understood that when the force applied to the traction member 430 is released, the unlocking slider 410 and the connecting plate 420 will reset under the elastic force of the elastic reset member 440. The abutting block 321 slides relative to the travel groove 421 until it just abuts (or does not abut) against the groove wall on the side of the travel groove 421 away from the locking lever 200, that is, the reset of the connecting plate 420 will not change the unlocking position of the locking slider 320, and the locking lever 200 remains in the unlocked state. Subsequently, the locking action of the locking lever 200 can be re-executed through the driving assembly 300.

[0066] In the embodiment of the present application, the above-mentioned automotive charging gun locking device is adopted. The manual mechanical unlocking of the locking lever 200 is realized through the traction member 430. With the cooperation of the travel groove 421 and the abutting block 321, the telescopic control of the locking lever 200 by the driving assembly 300 will not interfere with the position state of the mechanical unlocking assembly 400. At the same time, the mechanical unlocking assembly 400 can automatically reset through the elastic reset member 440 after unlocking, and the locking lever 200 can remain in the unlocked state after the mechanical unlocking assembly 400 resets, which is convenient for the emergency disconnection between the charging gun and the charging socket and greatly improves the safety during charging.

[0067] It can be understood that the cooperation structure between the unlocking slider 410 and the locking slider 320 is not limited to the above one. For example, the connecting plate 420 can be fixedly arranged on the locking slider 320, and at the same time, the abutting block 321 cooperating with the connecting plate 420 can be fixedly arranged on the unlocking slider 410. At this time, the above-mentioned unlocking effect can also be achieved as long as the unlocking coupling between the unlocking slider 410 and the locking slider 320 can be realized, and no specific details will be described here.

[0068] In a preferred embodiment, a slide rail structure cooperating with the unlocking slider 410 is provided on the installation box body, thereby improving the movement stability of the unlocking slider 410.

[0069] In a preferred embodiment, the unlocking slider 410 is arranged on the side of the locking slider 320 away from the locking rod 200, and the elastic resetting member 440 is specifically arranged as a spring member and is arranged between the end face of the unlocking slider 410 away from the locking slider 320 and the corresponding side wall surface of the installation box body.

[0070] In a preferred embodiment, the traction member 430 is specifically arranged as a traction rope and the end away from the unlocking slider 410 extends to the outside of the installation box body.

[0071] It can be understood that the traction member 430 can be arranged as a flexible structure or a rigid structure, as long as the manual traction of the traction member 430 can be realized, and no specific elaboration is made here.

[0072] In a preferred embodiment, the control board 340 is specifically arranged as a PCB board, and one end of the motor 330 away from the power output end is connected to the control board 340.

[0073] In a preferred embodiment, as Figures 1 to 7 shown, the installation box body includes a base 110 and a top cover 120 buckled with the base 110, and a cavity for accommodating the driving assembly 300 and the mechanical unlocking assembly 400 is arranged between the base 110 and the top cover 120.

[0074] Wherein, the locking rod 200 penetrates and is slidably arranged between the outer end face of the base 110 and the inner wall of the cavity, and the traction member 430 penetrates and is slidably arranged between the outer end face of the base 110 on the side away from the locking rod 200 and the inner wall of the corresponding side cavity.

[0075] In a preferred embodiment, as Figure 6 shown, a locking through hole 111 for the movement of the locking rod 200 is penetrated and arranged between the outer end face of the base 110 and the inner wall of the cavity, and a first sealing member 510 is fixedly embedded in the locking through hole 111.

[0076] It can be understood that the first sealing member 510 is slidably connected to the locking rod 200. When the locking rod 200 slides relative to the first sealing member 510, the first sealing member 510 can seal the internal cavity of the base 110 and the top cover 120, so as to prevent dust from entering.

[0077] In a preferred embodiment, as Figure 6 shown, an unlocking through hole 112 for the movement of the traction member 430 is penetrated and arranged between the end face of the base 110 on the side away from the locking through hole 111 and the inner wall of the corresponding side cavity, and a second sealing member 520 is fixedly embedded in the unlocking through hole 112.

[0078] It can be understood that the second seal 520 is slidably connected to the traction member 430. When the traction member 430 slides relative to the second seal 520, the second seal 520 can seal the internal cavities of the base 110 and the top cover 120, thereby preventing dust from entering.

[0079] In a preferred embodiment, as Figure 6 shown, a wiring through hole 113 is provided in a penetrating manner between the end face of the base 110 on the side away from the locking through hole 111 and the inner wall of the corresponding side of the cavity. The wiring through hole 113 is located at the corresponding position of the motor 330 and a third seal 530 is fixedly embedded therein.

[0080] It can be understood that the wiring on the motor 330 passes through the third seal 530 and exits the internal cavity of the installation box body. The third seal 530 can further enhance the sealing performance of the internal cavity of the installation box body.

[0081] It should be noted that in this article, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of additional identical elements in the process, method, article or device including that element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0082] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A locking device for a car charging gun, characterized in that: It comprises a mounting box, on which a locking rod is provided for linear sliding movement; The installation box is also provided with a driving component connected to the locking rod and used to drive the locking rod to move axially, and a mechanical unlocking component used to drive the locking rod to retract and unlock; The driving assembly includes a worm rotatably arranged on the mounting box, a locking slider threadedly arranged on the worm, and a motor for driving the worm to rotate, and the locking rod is fixedly arranged on the locking slider; The mechanical unlocking assembly comprises an unlocking slider linearly slidably arranged on the mounting box, and a connecting plate and a traction member are fixedly arranged on the unlocking slider; An elastic reset member is installed between the unlocking slider and the mounting box, a travel groove is provided on the connecting plate, and a stop block slidably connected to the travel groove is fixed on the locking slider; The length direction of the travel groove and the sliding direction of the unlocking slider are both parallel to the axial direction of the locking rod. When the locking rod is in the extended and locked state, the elastic reset member has not accumulated elastic potential energy, and the stop block is located in the travel groove close to one end of the locking rod and does not contact or just contacts the corresponding side groove wall of the travel groove.

2. The locking device for a vehicle charging gun according to claim 1, characterized in that: The driving assembly also includes a reduction gear assembly connected to the power output end of the motor, a driving wheel connected to the power output end of the reduction gear assembly, and a driven wheel fixedly arranged on the worm and coupled to the driving wheel; Wherein, when the driving wheel rotates, it can drive the driven wheel to rotate synchronously.

3. The locking device for a vehicle charging gun according to claim 1, characterized in that: The driving assembly also includes a control board which is fixedly arranged on the mounting box and connected to the motor.

4. The locking device for a vehicle charging gun according to claim 1, characterized in that: Also included is a sensing component for monitoring the extension and retraction stroke of the locking rod.

5. A vehicle charging gun locking device according to claim 3 or 4, characterized in that: The sensing component includes a detection member fixedly arranged on the locking slide block, and at least one coupling sheet is arranged on the control panel; The length direction of the coupling piece is parallel to the axial direction of the locking rod, and the metal spring sheet on the detection member abuts against the coupling piece at the corresponding position.

6. The locking device for a vehicle charging gun according to claim 1, characterized in that: The unlocking slider is arranged on a side of the locking slider away from the locking rod; The elastic reset member is specifically configured as a spring member and is located between an end surface of the unlocking slider away from the locking slider and a corresponding side wall surface of the installation box.

7. The locking device for a vehicle charging gun according to claim 1, characterized in that: The traction member is specifically configured as a traction rope and extends to the outside of the installation box away from one end of the unlocking slider.

8. A vehicle charging gun locking device according to claim 1 or 7, characterized in that: The installation box is fixedly embedded with a first sealing member that is slidably matched with the locking rod; And / or a second sealing member which is slidably matched with the traction member is fixedly embedded in the installation box.

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