Safe electric telescopic charging pile

Abstract

The utility model discloses a safe electric telescopic charging pile, which comprises an integral cover plate, an integral base, an electric push rod, a push rod bracket, a contact panel, a charging contact, a spring, a positive and negative electrode front cover plate, a support screw, a positive and negative electrode protective cover, a manual control panel, a manual switch, an extension button, a retraction button and a network cable port, the whole base and the contact panel are provided with an automatic detection structure, the utility model relates to the technical field of charging piles, the front surface of the contact panel is provided with a micro pressure switch, whether an AGV or an electric forklift is accurately butted with a charging contact can be accurately detected, and the detection accuracy is improved. The charging fault or the potential safety hazard caused by the inaccurate position of the vehicle can be avoided, and when the charging contact and the charging disc on the vehicle body are pressed tightly, the micro pressure switch can send out a signal to ensure that the charging process is carried out under a safe condition.

Description

Technical Field

[0001] The utility model relates to the technical field of charging piles, and in particular to a safe electric telescopic charging pile. Background Art

[0002] AGV (Automated Guided Vehicle) is an automated transport device that can autonomously navigate and transport cargo in factories, warehouses, hospitals and other places. AGV is equipped with sensors, computers and control systems, and can identify the environment and avoid obstacles through the autonomous navigation system, thus achieving unmanned driving. AGV is usually powered by batteries, and there are two ways to charge it: manual charging and automatic charging. Manual charging requires connecting the AGV to the charging station and then manually starting the charging process. Automatic charging means that the AGV automatically returns to the charging station when the battery is low and docks with the charging dock to complete the charging. This method can improve the use efficiency of AGV, reduce manual intervention, and improve production efficiency.

[0003] When the AGV automatically returns to the charging station and docks with the charging seat for charging, due to various reasons (such as navigation error, mechanical deviation, environmental interference, etc.), the vehicle and the charging seat are not properly aligned. In this case, the AGV may not be able to effectively contact the charging seat, and thus cannot achieve normal charging. This not only reduces the working efficiency of the AGV, but may also affect the normal operation of the entire logistics or production line. Especially during peak hours or when the task is urgent, docking failure may cause time delays and waste of resources. At the same time, docking errors may also lead to certain safety hazards. The charged part is exposed and the generated electric field may cause electric shock to passers-by. Utility Model Content

[0004] The purpose of the utility model is to provide a safe electric telescopic charging pile to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a safe electric telescopic charging pile, including an integral cover, an integral base, an electric push rod, a push rod bracket, a contact panel, a charging contact, a spring, a positive and negative front cover, a support screw, a positive and negative cover, a manual control panel, a manual switch, an extension button, a retraction button and a network cable port, the integral base is arranged at the outer bottom of the integral cover, a charging port is opened on one side of the integral cover, the electric push rod is arranged at the inner bottom of the integral cover, the push rod bracket is connected to the driving end of the electric push rod, and the contact panel is arranged on the push rod bracket The charging contact is arranged on the contact panel, and the contact panel is connected with the positive and negative front cover plates through a spring, and the positive and negative front cover plates are provided with supporting screws, and the supporting screws are movably passed through the contact panel, and the spring is sleeved on the supporting screws, and the positive and negative front cover plates are connected with positive and negative pole protective covers through screws, and the positive and negative pole protective covers are movably passed through the charging port on one side of the integral cover plate, and a manual control panel is arranged in the integral cover plate, and a manual switch, an extension button, a retraction button and a network cable port are respectively arranged on the manual control panel, and an automatic detection structure is arranged on the integral base and the contact panel.

[0006] Preferably, the automatic detection structure includes a PLC controller and a micro pressure switch, the PLC controller is arranged in the integral base, the micro pressure switch is arranged on the contact panel, and the PLC controller is connected to the micro pressure switch and the electric push rod respectively.

[0007] Preferably, a bearing bracket is provided at the inner bottom of the integral base, a bearing is provided on the bearing bracket, an inner ring of the bearing is connected to a sliding rod, and one end of the sliding rod is connected to the contact panel.

[0008] Compared with the prior art, the utility model has the following beneficial effects: the utility model can accurately detect whether the AGV vehicle or electric forklift is accurately docked with the charging contact through the micro-pressure switch set on the front of the contact panel, which helps to avoid charging failures or safety hazards caused by inaccurate vehicle position. When the charging contact is pressed against the charging disk on the vehicle body, the micro-pressure switch will send a signal to ensure that the charging process is carried out under safe conditions. This mechanism avoids problems such as charging interruption or power leakage caused by the charging interface not being tightly connected. The pressure change during the charging process can be detected by the micro-pressure switch and the PLC controller. Once the micro-pressure switch detects that the pressure is lower than the threshold, the PLC controller will control the electric push rod to retract, immediately stop charging and report a fault. This mechanism helps to timely discover and deal with potential safety risks and prevent safety accidents caused by charging failures. If the electric push rod is extended for more than 12 seconds without receiving the compaction signal of the micro-pressure switch, the PLC sensor will report an extension timeout error. This timeout detection function helps to identify and solve mechanical failures of the charging pile or vehicle docking problems, ensuring the smooth progress of the charging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the axonometric structure of the utility model;

[0010] Figure 2 It is a schematic diagram of the axonometric structure of the positive and negative electrode front cover plates of the utility model when disassembled;

[0011] Figure 3 It is a schematic diagram of the exploded axonometric structure of the utility model;

[0012] Figure 4 for Figure 3 A schematic diagram of the enlarged structure of position A;

[0013] Figure 5 It is a schematic diagram of the axonometric structure of the positive and negative electrode front cover plates of the utility model in a retracted state.

[0014] In the figure: 1. Integral cover; 2. Integral base; 3. Electric push rod; 4. Push rod bracket; 5. Contact panel; 6. Charging contact; 7. Spring; 8. Positive and negative front cover; 9. Support screw; 10. Positive and negative cover; 11. Manual control panel; 12. Manual switch; 13. Extend button; 14. Retract button; 15. Network cable port; 16. PLC controller; 17. Micro pressure switch; 18. Bearing bracket; 19. Bearing; 20. Sliding rod. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] See also Figure 1-5 The utility model provides a safe electric telescopic charging pile, including an integral cover plate 1, an integral base 2, an electric push rod 3, a push rod bracket 4, a contact panel 5, a charging contact 6, a spring 7, a positive and negative front cover plate 8, a support screw 9, a positive and negative cover 10, a manual control panel 11, a manual switch 12, an extension button 13, a retraction button 14 and a network cable port 15. The integral base 2 is arranged at the outer bottom of the integral cover plate 1, and the integral base 2 is used to support the integral cover plate 1 to improve stability. A charging port is opened on one side of the integral cover plate 1, and the integral cover plate 1 is used to install charging components. The electric push rod 3 is arranged at the inner bottom of the integral cover plate 1, and the push rod bracket 4 is connected to the driving end of the electric push rod 3. The contact panel 5 is arranged on the push rod bracket 4, and the charging contact 6 is arranged on the contact panel 5. The charging contact 6 is divided into positive and negative contacts. The contact panel 5 is connected by a spring 7 There are positive and negative front cover plates 8, support screws 9 are arranged on the positive and negative front cover plates 8, and the support screws 9 are movably inserted into the contact panel 5, the spring 7 is sleeved on the support screws 9, the positive and negative front cover plates 8 are connected with positive and negative protective covers 10 by screws, the positive and negative protective covers 10 are movably inserted into the charging port on one side of the integral cover plate 1, the positive and negative front cover plates 8 and the positive and negative protective covers 10 form a rectangular sleeve so as to be sleeved on the outside of the contact panel 5, the positive and negative front cover plates 8 are made of steel spray-coated, the positive and negative protective covers 10 are made of flame-retardant ABS material, a manual control panel 11 is arranged in the integral cover plate 1, and a manual switch 12, an extension button 13, a retraction button 14 and a network cable port 15 are respectively arranged on the manual control panel 11, the manual switch 12, the extension button 13, and the retraction button 14 are used to manually control the electric push rod 3, and an automatic detection structure is arranged on the integral base 2 and the contact panel 5.

[0017] Specifically, the automatic detection structure includes a PLC controller 16 and a micro pressure switch 17. The PLC controller 16 is arranged in the integral base 2, and the micro pressure switch 17 is arranged on the contact panel 5. The PLC controller 16 is connected to the micro pressure switch 17 and the electric push rod 3 respectively.

[0018] Specifically, a bearing bracket 18 is provided at the bottom of the integral base 2, a bearing 19 is provided on the bearing bracket 18, the inner ring of the bearing 19 is connected to a slide rod 20, one end of the slide rod 20 is connected to the contact panel 5, and the bearing 19 and the slide rod 20 are used to provide more stable support for the contact panel 5.

[0019] Working principle: In the non-charging state, the positive and negative front cover plates 8 and the positive and negative protective covers 10 are located inside the overall cover plate 1. When charging, the electric push rod 3 will drive the contact panel 5, the positive and negative front cover plates 8 and the positive and negative protective covers 10 to extend out of the charging port of the overall base 2. When the positive and negative front cover plates 8 are squeezed by the charging plate on the vehicle body, due to the elastic effect of the spring 7, the positive and negative front cover plates 8 and the positive and negative protective covers 10 will move backward as a whole. However, due to the supporting effect of the electric push rod 3 on the contact panel 5, the contact panel 5 will not move. At this time, when the positive and negative front cover plates 8 are squeezed by the charging plate on the vehicle body, the positive and negative front cover plates 8 and the positive and negative protective covers 10 will move backward as a whole. When the plate 8 moves backward, the charging contact 6 will naturally extend out of the positive and negative front cover plates 8, and the micro pressure switch 17 will be squeezed. When the micro pressure switch 17 detects that the pressure is normal, it means that the charging contact 6 is normally pressed against the charging plate on the vehicle body. At this time, the micro pressure switch 17 will send a signal to the PLC controller 16, and the PLC controller 16 will send a signal to indicate that the charging is normal, ensuring that the charging process is carried out under safe conditions. If the electric push rod 3 is extended for more than 12 seconds without receiving the compaction signal from the micro pressure switch 17, the PLC sensor will report an extension timeout error.

[0020] Through the PLC's Ethernet, the device can be connected to the host computer by wire, and the WiFi module can be expanded to achieve wireless connection; for abnormal status of the charging equipment, it can be uploaded to the host computer through the PLC's network port, and the equipment can be controlled to run fully automatically; and the charging pile can also charge unmanned electric forklifts, unmanned pallet trucks and other equipment, and remote control of the equipment can be achieved through the PLC's network port, or automatic operation can be achieved through automatic instructions from the host computer.

[0021] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safe electric telescopic charging pile, characterized by: The invention comprises an integral cover plate (1), an integral base (2), an electric push rod (3), a push rod bracket (4), a contact panel (5), a charging contact (6), a spring (7), a positive and negative front cover plate (8), a support screw (9), a positive and negative protective cover (10), a manual control panel (11), a manual switch (12), an extension button (13), a retraction button (14) and a network cable port (15), wherein the integral base (2) is arranged on the outer bottom of the integral cover plate (1), a charging port is provided on one side of the integral cover plate (1), the electric push rod (3) is arranged on the inner bottom of the integral cover plate (1), the push rod bracket (4) is connected to the driving end of the electric push rod (3), the contact panel (5) is arranged on the push rod bracket (4), and the charging contact (6) is arranged on the contact panel (5). ), the contact panel (5) is connected to the positive and negative front cover plates (8) through a spring (7), the positive and negative front cover plates (8) are provided with support screws (9), and the support screws (9) are movably inserted into the contact panel (5), the spring (7) is mounted on the support screws (9), the positive and negative front cover plates (8) are connected to the positive and negative protective covers (10) through screws, the positive and negative protective covers (10) are movably inserted into the charging port on one side of the integral cover plate (1), the integral cover plate (1) is provided with a manual control panel (11), the manual control panel (11) is respectively provided with a manual switch (12), an extension button (13), a retraction button (14) and a network cable port (15), and the integral base (2) and the contact panel (5) are provided with an automatic detection structure.

2. A safe electric telescopic charging pile according to claim 1, characterized in that: The automatic detection structure comprises a PLC controller (16) and a micro-pressure switch (17); the PLC controller (16) is arranged in the integral base (2); the micro-pressure switch (17) is arranged on the contact panel (5); and the PLC controller (16) is connected to the micro-pressure switch (17) and the electric push rod (3) respectively.

3. A safe electric telescopic charging pile according to claim 1, characterized in that: A bearing bracket (18) is provided at the inner bottom of the integral base (2), a bearing (19) is provided on the bearing bracket (18), an inner ring of the bearing (19) is connected to a slide rod (20), and one end of the slide rod (20) is connected to the contact panel (5).

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