Portable electric vehicle charging pile locking device

By using the transmission gear and rack structure of the portable electric vehicle charging station locking device, combined with the transmission motor and pressure sensor, the charging gun is automatically locked and suspended, solving the problems of charging gun falling and theft, and improving safety and service life.

CN223546166UActive Publication Date: 2025-11-14JINHUA INST OF METROLOGY & QUALITY SCI (NAT MOTOR VEHICLE MECHANICAL PARTS PROD QUALITY SUPERVISION & INSPECTION CENT (ZHEJIANG) JINHUA INST OF STANDARDIZATION
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Patent Information

Application Number
CN202520040721.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2025-11-14
Estimated Expiration
2035-01-08

AI Technical Summary

Technical Problem

Existing electric vehicle charging stations lack locking devices, resulting in unstable charging gun suspension, making them prone to falling and theft, affecting their lifespan and user experience.

Method used

Design a portable electric vehicle charging station locking device that uses a transmission gear and rack structure, combined with a transmission motor and pressure sensor, to achieve automatic locking and suspension of the charging gun, preventing it from falling off and being stolen.

Benefits of technology

It effectively prevents the charging gun from falling off and being stolen when not in use, improving safety and lifespan, and enhancing user experience.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a portable electric automobile charging pile locking device which comprises a charging pile body, a positioning cylinder is fixedly installed in a connecting groove, a supporting ring is fixedly connected to one side of the positioning cylinder, transmission gears are rotatably installed on all sides of the surface of the supporting ring, and a transmission rack is slidably installed on a limiting groove. The transmission rack is in meshed connection with one side of the transmission gear, the other side of the transmission gear is in meshed connection with a transmission gear ring, a charging gun is fixedly installed at the tail end of the charging wire, a locking groove is formed in the tail end of the charging gun, and a limiting rod is fixedly connected to the tail end of the transmission rack. The beneficial effects of the utility model are that the tail end of the charging gun is inserted into the positioning cylinder, the transmission gear drives the transmission rack to move towards the inner wall of the positioning cylinder through the rotation of the transmission gear ring, and then the limiting rod at the tail end of the transmission rack is inserted into the locking groove at the tail end of the charging gun in a matched manner; the portable locking of the charging gun without charging operation is realized, and the charging gun is prevented from falling off.
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Description

Technical Field

[0001] This utility model relates to the field of electric vehicle charging pile technology, and more specifically, to a portable electric vehicle charging pile locking device. Background Technology

[0002] With increasing global focus on environmental protection and energy efficiency, new energy vehicles, as green alternatives to traditional fuel vehicles, play a crucial role in reducing greenhouse gas emissions and dependence on fossil fuels. Against this backdrop, the electric vehicle (EV) market is expanding rapidly, and corresponding infrastructure development, such as EV charging stations, is also experiencing rapid growth. Currently, most EV charging stations are equipped with charging guns to connect the EV to a power source to complete the charging process. When not charging, users typically need to insert the charging gun into a specially designed groove on the side of the charging station for storage. However, since most charging stations are located in public places and are generally unattended, this presents several problems with the storage of existing charging guns.

[0003] Specifically, current charging gun suspension methods mostly rely on simple slot structures for fixation, lacking dedicated locking devices. This design makes the charging gun insecure when suspended, easily falling due to the weight of the charging cable itself or unexpected external impacts. Frequent falls can damage the charging gun's mechanical structure, shortening its lifespan. Furthermore, since most charging stations are unattended, existing suspension methods are ineffective in preventing theft. Criminals could exploit this insecure suspension to easily cut the charging cable and steal the charging gun, causing economic losses for charging station operators and severely impacting the charging experience for electric vehicle users.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a portable electric vehicle charging pile locking device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A portable electric vehicle charging pile locking device includes a charging pile body. Connecting grooves are formed on both sides of the surface of the charging pile body. A positioning cylinder is fixedly installed inside the connecting groove. A support ring is fixedly connected to one side of the positioning cylinder. Transmission gears are rotatably mounted on each side of the surface of the support ring. A limit groove is formed on one side of the transmission gear, and a transmission rack is slidably mounted on the limit groove. The transmission rack meshes with one side of the transmission gear, and a transmission gear ring meshes with the other side of the transmission gear. Charging cables are fixedly connected to both sides of the charging pile body. A charging gun is fixedly installed at the end of the charging cable. A locking groove is formed at the end of the charging gun. A limit rod is fixedly connected to the end of the transmission rack, and the limit rod cooperates with the locking groove.

[0008] Furthermore, in order to provide power for the transmission of the locking device, a drive motor is fixedly installed on one side of the outer surface of the positioning cylinder. The drive shaft of the drive motor rotates through the support ring and is fixedly connected to one of the drive gears on its surface.

[0009] Furthermore, in order to achieve automated control of the locking of the charging gun, a pressure sensor is fixedly installed on one side of the inside of the positioning cylinder, a bearing plate is fixedly installed on one side of the pressure sensor, and a microcontroller is fixedly installed on one side of the surface of the positioning cylinder.

[0010] Furthermore, in order to protect the end of the charging gun after locking, a protective ring is fixedly installed on one side of the support ring, and one side of the protective ring is fixedly connected to the transmission gear ring.

[0011] Furthermore, in order to facilitate the quick insertion of the charging gun end into the positioning cylinder for alignment and locking, a positioning rod is fixedly connected to one side of the charging gun end. Positioning grooves are opened on the inner walls of both the positioning cylinder and the protective ring, and the positioning rod cooperates with the positioning grooves.

[0012] Furthermore, to facilitate the hanging of the charging cable, metal hooks are fixedly installed on both sides of the surface of the charging pile body.

[0013] Furthermore, in order to enable the charging pile body to move and be supported, omnidirectional wheels are installed on the bottom of the charging pile body.

[0014] The beneficial effects of this utility model are as follows: After the end of the charging gun is inserted into the positioning cylinder, the transmission motor drives one of the transmission gears on the support ring to rotate, which in turn drives the transmission gear ring and the other multiple transmission gears on the surface of the support ring to rotate synchronously. This causes one side of the transmission gear to drive each transmission rack to move towards the inner wall of the positioning cylinder, so that the limiting rod at the end of the transmission rack can be inserted into the locking groove at the end of the charging gun. This achieves portable locking and suspension of the charging gun when it is not in use, effectively preventing the charging gun from falling off, avoiding the risk of drop damage and theft, and significantly improving the safety and service life of the charging gun when it is not in use. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the surface structure of a portable electric vehicle charging pile locking device according to an embodiment of the present utility model;

[0017] Figure 2 This is a side view of the charging pile body in a portable electric vehicle charging pile locking device according to an embodiment of the present utility model;

[0018] Figure 3 This is a detailed view of the surface structure of the positioning cylinder and charging gun in a portable electric vehicle charging pile locking device according to an embodiment of the present utility model;

[0019] Figure 4 This is a schematic diagram of the surface structure of the support ring in a portable electric vehicle charging pile locking device according to an embodiment of the present utility model;

[0020] Figure 5 This is an internal cross-sectional view of the positioning cylinder in a portable electric vehicle charging pile locking device according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. Charging pile body; 2. Connecting groove; 3. Positioning cylinder; 4. Support ring; 5. Transmission gear; 6. Limiting groove; 7. Transmission rack; 8. Transmission gear ring; 9. Charging cable; 10. Charging gun; 11. Locking groove; 12. Limiting rod; 13. Transmission motor; 14. Pressure sensor; 15. Bearing plate; 16. Microcontroller; 17. Protective ring; 18. Positioning rod; 19. Positioning groove; 20. Metal hook; 21. Universal wheel. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] According to an embodiment of the present invention, a portable electric vehicle charging station locking device is provided.

[0025] Example 1:

[0026] like Figures 1-4 As shown, a portable electric vehicle charging pile locking device according to an embodiment of the present invention includes a charging pile body 1. A pair of connecting grooves 2 are formed on both sides of the surface of the charging pile body 1. A positioning cylinder 3 is fixedly installed inside each connecting groove 2. A support ring 4 is fixedly connected to one side of the positioning cylinder 3. Six transmission gears 5 are rotatably mounted on each side of the surface of the support ring 4. A limit groove 6 is formed on one side of each transmission gear 5. A transmission rack 7 is slidably mounted on the limit groove 6. The transmission rack 7 meshes with one side of the transmission gear 5, and a transmission gear ring 8 meshes with the other side of the transmission gear 5. Charging cables 9 are fixedly connected to both sides of the pile body 1. A charging gun 10 is fixedly installed at the end of the charging cable 9. A locking groove 11 is opened at the end of the charging gun 10. The number of locking grooves 11 is the same as the number of transmission racks 7. A limit rod 12 is fixedly connected to the end of the transmission rack 7. The limit rod 12 cooperates with the locking groove 11. Through the meshing and rotation of the transmission gear 5 and the transmission gear ring 8, each transmission gear 5 drives each transmission rack 7 to move towards the inner wall of the positioning cylinder 3. Then, the transmission rack 7 drives each limit rod 12 to cooperate and be installed in the locking groove 11 at the end of the charging gun 10, so as to realize the fixed locking of the charging gun 10.

[0027] like Figures 1-4As shown, a drive motor 13 is fixedly installed on one side of the outer surface of the positioning cylinder 3. The drive shaft of the drive motor 13 rotates through the support ring 4 and is fixedly connected to one of the drive gears 5 on its surface. The drive motor 13 drives one of the drive gears 5 to rotate, so that the drive gear 5 drives the drive gear ring 8 and the other multiple drive gears 5 on the surface of the support ring 4 to rotate synchronously, thereby realizing that each drive gear 5 drives each drive rack 7 to move towards the inner wall of the positioning cylinder 3. A pressure sensor 14 is fixedly installed on one side of the inside of the positioning cylinder 3. A bearing plate 15 is fixedly installed on one side of the pressure sensor 14. A microcontroller 16 is fixedly installed on one side of the surface of the positioning cylinder 3. The microcontroller 16 is electrically connected to the controller inside the charging pile body 1. When the end of the charging gun 10 is inserted into the positioning cylinder 3 and contacts and squeezes the bearing plate 15, the pressure sensor 14... The pressure signal is detected and transmitted to the microcontroller 16, which then starts the drive motor 13 to automatically lock the charging gun 10. A protective ring 17 is fixedly installed on one side of the surface of the support ring 4. One side of the protective ring 17 is fixedly connected to the drive gear ring 8 to protect the end of the charging gun 10 after locking. A positioning rod 18 is fixedly connected to one side of the end of the charging gun 10. Positioning grooves 19 are opened on the inner walls of the positioning cylinder 3 and the protective ring 17. The positioning rod 18 cooperates with the positioning groove 19 to facilitate the insertion of the end of the charging gun 10 into the positioning cylinder 3 after alignment. Metal hooks 20 are fixedly installed on both sides of the surface of the charging pile body 1 to suspend the charging cable 9 on one side of the charging gun 10. A universal wheel 21 is rotatably installed on the bottom of the charging pile body 1. The universal wheel 21 provides a movable support, which facilitates the movement of the entire charging pile.

[0028] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0029] In summary, with the help of the above-mentioned technical solution of this utility model, in actual use, after the end of the charging gun 10 is inserted into the positioning cylinder 3, the pressure sensor 14 detects the pressure signal and transmits it to the microcontroller 16, causing the microcontroller 16 to start the transmission motor 13. The transmission motor 13 drives one of the transmission gears 5 on the support ring 4 to rotate, causing the transmission gear 5 to drive the transmission gear ring 8 and the other multiple transmission gears 5 on the surface of the support ring 4 to rotate synchronously. This causes one side of the transmission gear 5 to drive each transmission rack 7 to move towards the inner wall of the positioning cylinder 3, so that the limiting rod 12 at the end of the transmission rack 7 is inserted into the locking groove 11 at the end of the charging gun 10, realizing the portable locking and suspension of the charging gun 10 when there is no charging operation, effectively preventing the charging gun 10 from falling off. When the charging pile body 1 receives a signal that charging is required, the microcontroller 16 controls the transmission motor 13 to rotate in the opposite direction, causing the limiting rod 12 originally inserted into the end of the charging gun 10 to retract and slide out, thereby contacting the locking state of the end of the charging gun 10, making it convenient to pull out for charging.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable electric vehicle charging station locking device, characterized in that, The device includes a charging pile body (1), on both sides of the surface of the charging pile body (1) having connecting grooves (2), a positioning cylinder (3) fixedly installed inside the connecting grooves (2), a support ring (4) fixedly connected to one side of the positioning cylinder (3), a transmission gear (5) rotatably installed on each side of the surface of the support ring (4), a limit groove (6) opening on one side of the transmission gear (5), a transmission rack (7) slidably installed on the limit groove (6), the transmission rack (7) meshing with one side of the transmission gear (5), a transmission gear ring (8) meshing with the other side of the transmission gear (5), a charging cable (9) fixedly connected to both sides of the charging pile body (1), a charging gun (10) fixedly installed at the end of the charging cable (9), a locking groove (11) opening at the end of the charging gun (10), a limit rod (12) fixedly connected to the end of the transmission rack (7), and the limit rod (12) cooperating with the locking groove (11).

2. The portable electric vehicle charging station locking device according to claim 1, characterized in that, A drive motor (13) is fixedly installed on one side of the outer surface of the positioning cylinder (3). The drive shaft of the drive motor (13) rotates through the support ring (4) and is fixedly connected to one of the drive gears (5) on its surface.

3. The portable electric vehicle charging station locking device according to claim 1, characterized in that, A pressure sensor (14) is fixedly installed on one side of the inside of the positioning cylinder (3), a bearing plate (15) is fixedly installed on one side of the pressure sensor (14), and a microcontroller (16) is fixedly installed on one side of the surface of the positioning cylinder (3).

4. A portable electric vehicle charging station locking device according to claim 1, characterized in that, A protective ring (17) is fixedly installed on one side of the surface of the support ring (4), and one side of the protective ring (17) is fixedly connected to the transmission gear ring (8).

5. A portable electric vehicle charging station locking device according to claim 4, characterized in that, A positioning rod (18) is fixedly connected to one end of the charging gun (10). The inner walls of the positioning cylinder (3) and the protective ring (17) are both provided with positioning grooves (19). The positioning rod (18) cooperates with the positioning grooves (19).

6. A portable electric vehicle charging station locking device according to claim 1, characterized in that, Metal hooks (20) are fixedly installed on both sides of the surface of the charging pile body (1).

7. A portable electric vehicle charging station locking device according to claim 1, characterized in that, The bottom of the charging pile body (1) is rotatably equipped with casters (21).