Underground automatic recovery device for power line of automobile charging pile

Abstract

The utility model discloses an underground automatic recovery device for a power line of an automobile charging pile. The underground automatic recovery device comprises an underground pre-buried box and a ground charging box, a ground charging box is fixedly installed at the top of the underground pre-buried box, a power line is installed on one side of the ground charging box in an extending mode, sliding rails are arranged on the two sides of the inner wall of the underground pre-buried box, take-up sliding blocks are movably installed in the sliding rails, take-up wheels are movably installed on the lower portions of the inner sides of the take-up sliding blocks, and the power line is arranged below the take-up wheels. A servo motor is installed at the top end of the inner wall of the underground pre-buried box and located above the sliding rail in an embedded mode, and a lead screw is installed at the bottom of the servo motor in a transmission mode. The power line can be driven to be wound and unwound in an up-down lifting mode, the protection effect on the power line can be greatly improved through winding and unwinding, winding damage is prevented, the power line does not need to be wound when the device is recycled, and therefore the power line does not need to generate large deformation, and the use is convenient. Damage of cables in the power line caused by long-term frequent winding can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, and in particular to an underground automatic recovery device for a power line of a car charging pile. Background Art

[0002] Charging pile is a kind of energy replenishment device that provides power for electric vehicles. Its function is similar to the gas pump in the gas station. It can be fixed on the ground or wall, installed in public buildings and residential parking lots, and can charge various types of electric vehicles according to the voltage and current adjustment. The input end of the charging pile is directly connected to the AC power grid, and the output end is equipped with a charging plug for charging electric vehicles. Charging piles generally provide two charging methods: conventional charging and fast charging. People can use a specific charging card to swipe the card on the human-computer interaction interface provided by the charging pile to perform corresponding charging operations and print cost data. The charging pile display can display data such as charging amount, cost, and charging time;

[0003] However, the power cords of current charging piles are generally exposed to the outside, so they are very easy to get tangled and easily corroded and damaged when exposed to the outside for a long time, and have a limited service life. Some charging piles use a winding method to recycle the power cords, but long-term and frequent winding of the power cords can easily cause damage to the internal cables, affecting the service life.

[0004] Therefore, how to provide an automatic underground recovery device for the power cord of a car charging pile is an urgent problem to be solved by those skilled in the art. Utility Model Content

[0005] One purpose of the utility model is to provide an underground automatic recovery device for the power cord of a car charging pile. The utility model can drive the power cord to be retracted and released by lifting and lowering. The retraction and release can greatly improve the protection effect of the power cord and prevent entanglement and damage. In addition, the power cord does not need to be wound during recovery, so the power cord does not need to be greatly deformed, which can avoid damage to the internal cable of the power cord caused by long-term frequent winding.

[0006] According to an embodiment of the utility model, an underground automatic recovery device for a car charging pile power line includes an underground pre-buried box and a ground charging box;

[0007] A ground charging box is fixedly installed on the top of the underground pre-buried box, a power line is installed in one side of the ground charging box, slide rails are arranged on both sides of the inner wall of the underground pre-buried box, a wire-receiving slider is movably installed in the slide rail, a wire-receiving wheel is movably installed on the lower inner side of the wire-receiving slider, and the power line is placed under the wire-receiving wheel;

[0008] A servo motor is embedded and installed at the top of the inner wall of the underground embedded box and above the slide rail. A screw rod is installed at the bottom of the servo motor for transmission. Screw holes are opened on both sides of the wire-receiving slider, and the screw rod passes through the screw holes.

[0009] Furthermore, a line inlet is provided on the side wall of the ground charging box, and the power cord enters the ground charging box and the underground embedded box through the line inlet.

[0010] Furthermore, the other end of the power cord is movably extended out from the other side of the ground charging box, and a charging gun is fixedly installed on the other end of the power cord.

[0011] Furthermore, a groove is provided in the middle of the take-up wheel, and the power cord is placed in the groove.

[0012] Furthermore, a mounting seat is integrally formed around the top of the underground embedded box, and the mounting seat protrudes out of the underground embedded box around its periphery.

[0013] Furthermore, the outer wall thread of the screw rod and the inner wall thread of the screw hole are meshed with each other.

[0014] Furthermore, a socket is provided on the other side of the ground charging box, and the charging gun is inserted into the socket.

[0015] The beneficial effects of the utility model are:

[0016] The utility model can drive the screw rod to rotate in the screw holes on both sides of the wire-receiving slider through the servo motor, so as to control the free up and down movement of the wire-receiving slider and the wire-receiving wheel. The up and down movement of the wire-receiving wheel can drive the power cord to be retracted and released. When the wire-receiving wheel rises, the power cord can be pulled out for use, and when the wire-receiving wheel descends, the power cord can be collected into the underground pre-buried box for storage. The risk of the power cord being directly exposed to the outside and thus being damaged by winding can be effectively reduced. In addition, the retracting and releasing structure does not need to frequently wind and reel the power cord, which can prevent the problem of reduced internal cable life caused by frequent winding of the power cord. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of an underground automatic recovery device for a car charging pile power line proposed by the utility model;

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of an underground pre-buried box of an underground automatic recovery device for the power line of a vehicle charging pile proposed by the utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of an underground pre-buried box of an underground automatic recovery device for a power line of a vehicle charging pile proposed by the utility model, viewed from above;

[0021] Figure 4 The utility model provides a schematic structural diagram of a wire-receiving slider and a wire-receiving wheel of an underground automatic recovery device for a power cord of a vehicle charging pile.

[0022] In the figure: 1. Underground pre-buried box; 2. Ground charging box; 3. Charging gun; 4. Wire inlet; 5. Slide rail; 6. Wire take-up slider; 7. Wire take-up wheel; 8. Power cord; 9. Groove; 10. Screw rod; 11. Wire outlet; 12. Servo motor; 13. Socket; 14. Screw hole; 15. Mounting base. DETAILED DESCRIPTION

[0023] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0024] refer to Figure 1-3 , an underground automatic recovery device for a car charging pile power line, comprising an underground pre-buried box 1 and a ground charging box 2;

[0025] A ground charging box 2 is fixedly installed on the top of the underground pre-buried box 1, and a power line 8 is installed on one side of the ground charging box 2. Slide rails 5 are arranged on both sides of the inner wall of the underground pre-buried box 1, and a wire-receiving slider 6 is movably installed in the slide rail 5. A wire-receiving wheel 7 is movably installed on the lower inner side of the wire-receiving slider 6, and the power line 8 is placed under the wire-receiving wheel 7;

[0026] A servo motor 12 is embedded and installed at the top of the inner wall of the underground embedded box 1 and above the slide rail 5. A screw rod 10 is installed at the bottom of the servo motor 12. Screw holes 14 are opened on both sides of the wire-receiving slider 6. The screw rod 10 passes through the screw holes 14; and the outer wall thread of the screw rod 10 is meshed with the inner wall thread of the screw hole 14.

[0027] The side wall of the ground charging box 2 is provided with a line inlet 4, and the power line 8 enters the ground charging box 2 and the underground pre-buried box 1 through the line inlet 4;

[0028] Secondly, a groove 9 is provided in the middle of the take-up wheel 7, and the power cord 8 is placed in the groove 9. The inner wall of the groove 9 is designed as an arc surface, so that the power cord 8 can be well limited in the groove 9 to prevent the power cord 8 from falling off when the take-up wheel 7 moves up and down or rotates;

[0029] In this embodiment, the screw rod 10 can be driven to rotate clockwise or counterclockwise by starting the servo motor 12. When the two sets of servo motors 12 are started at the same time and drive the screw rod 10 to rotate clockwise in the screw hole 14, the wire-taking slider 6 can be driven to move upward in the slide rail 5. At this time, the power cord 8 can be located on the side of the outlet 11 and pulled out for charging. When charging is not needed, the screw rod 10 can be driven counterclockwise by the servo motor 12, and the wire-taking slider 6 and the wire-taking wheel 7 can be driven to move downward. At this time, the wire-taking wheel 7 can pull the power cord 8 downward and store it inside the underground pre-buried box 1, thereby completing the automatic recovery of the power cord 8.

[0030] refer to Figure 1 , Figure 3 and Figure 4 The other end of the power cord 8 is movably extended from the other side of the ground charging box 2, and a charging gun 3 is fixedly installed on the other end of the power cord 8. A socket 13 is provided on the other side of the ground charging box 2, and the charging gun 3 is inserted into the socket 13;

[0031] The top of the underground embedded box 1 is integrally formed with a mounting seat 15, which protrudes from the underground embedded box 1. The mounting seat 15 is placed above the bottom surface during installation and is fixedly connected to the ground. The specific connection method can be bolts or bonding.

[0032] In this embodiment, the vehicle can be charged by inserting the charging gun 3 into the vehicle charging port, and the other end of the power cord 8 is connected to the charging pile. After use, the charging gun 3 can be inserted into the socket 13 for storage. During installation, the underground embedded box 1 is embedded underground, and the mounting base 15 and the ground charging box 2 are placed on the ground.

[0033] Working principle: first, dig a pre-buried pit of corresponding depth on the bottom surface of one side of the charging pile, then the underground pre-buried box 1 can be buried underground, and the mounting seat 15 and the ground charging box 2 are placed on the ground, and then the power cord 8 on the side of the inlet 4 is connected to the output end of the charging pile. When charging is needed, the charging gun 3 can be pulled out from the socket 13 first, and then the servo motor 12 can be started to drive the screw rod 10 to rotate clockwise, thereby driving the take-up slider 6 and the take-up wheel 7 to move upward. At this time, the other end of the power cord 8 can be pulled out from the side of the outlet 11. After pulling it out, the charging gun 3 can be inserted into the vehicle charging port for charging. After charging is completed, the servo motor 12 can be started to drive the screw rod 10 to rotate counterclockwise. At this time, the take-up slider 6 and the take-up wheel 7 can move downward. During this process, the take-up wheel 7 can drive the power cord 8 to move downward so that it is stored in the underground pre-buried box 1. After the take-up wheel 7 moves to the bottom, the charging gun 3 is inserted into the socket 13 to complete the reset.

[0034] It is understandable that the servo motor in the present invention can be driven by an external power cord, and the servo motor can be controlled by programming using a main control system, and its control principle can be realized by existing control technology. The model of the servo motor is not limited to a single type and can be any type currently available on the market that is suitable for the present invention.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic underground recovery device for the power cord of a car charging pile, characterized in that: It comprises an underground pre-buried box (1) and a ground charging box (2); A ground charging box (2) is fixedly installed on the top of the underground pre-buried box (1), a power line (8) is installed on one side of the ground charging box (2), slide rails (5) are arranged on both sides of the inner wall of the underground pre-buried box (1), a wire-receiving slider (6) is movably installed in the slide rail (5), a wire-receiving wheel (7) is movably installed on the inner side and lower side of the wire-receiving slider (6), and the power line (8) is placed below the wire-receiving wheel (7); A servo motor (12) is embedded and installed at the top of the inner wall of the underground pre-buried box (1) and located above the slide rail (5); a screw rod (10) is installed at the bottom of the servo motor (12); screw holes (14) are provided on both sides of the wire-receiving slider (6); and the screw rod (10) passes through the screw holes (14).

2. The underground automatic recovery device for the power cord of a car charging pile according to claim 1 is characterized in that: The side wall of the ground charging box (2) is provided with a line inlet (4), and the power line (8) enters the ground charging box (2) and the underground pre-buried box (1) through the line inlet (4).

3. The underground automatic recovery device for the power cord of a car charging pile according to claim 1 is characterized in that: A wire outlet (11) is provided on one side of the top of the ground charging box (2), and the other end of the power cord (8) is located in the wire outlet (11) and extends out, and a charging gun (3) is fixedly installed on the other end of the power cord (8).

4. The underground automatic recovery device for the power cord of a car charging pile according to claim 1 is characterized in that: A groove (9) is provided in the middle of the take-up wheel (7), and the power cord (8) is placed in the groove (9).

5. The underground automatic recovery device for the power cord of a car charging pile according to claim 1, characterized in that: A mounting seat (15) is integrally formed around the top of the underground pre-buried box (1), and the mounting seat (15) protrudes from the underground pre-buried box (1) around its periphery.

6. The underground automatic recovery device for the power cord of a car charging pile according to claim 1, characterized in that: The outer wall thread of the screw rod (10) and the inner wall thread of the screw hole (14) are meshed with each other.

7. The underground automatic recovery device for the power cord of a car charging pile according to claim 3 is characterized in that: A socket (13) is provided on the other side of the ground charging box (2), and the charging gun (3) is inserted into the socket (13).

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