An RTU-based automatic power-off protection device for urban lighting leakage current

Abstract

This utility model relates to the field of automatic power-off protection technology for leakage current, and discloses an automatic power-off protection device for urban lighting based on an RTU (Remote Current Detection Unit). The device includes a control box, an RTU module fixedly connected inside the control box, a leakage current detection module fixedly connected inside the control box, and a power-off protection module fixedly connected inside the control box. The power-off protection module has a protection mechanism inside, and the control box has a disassembly mechanism. The protection mechanism includes a torsion spring, and an insulating block is fixedly connected to the left side of the outer wall of the torsion spring. In this utility model, the leakage current detection module monitors urban lighting in real time, achieving rapid response and precise protection against leakage current hazards. Once an excessive leakage current is detected, the protection mechanism in the power-off protection module can instantly cut off the circuit, preventing safety accidents caused by leakage current and greatly improving the safety of urban lighting.

Description

Technical Field

[0001] This utility model relates to the field of automatic power-off protection technology for leakage current, and in particular to an automatic power-off protection device for urban lighting leakage current based on RTU. Background Technology

[0002] When implementing automatic power-off protection for urban lighting leakage current, an RTU-based automatic power-off protection device for urban lighting leakage current is often used. This device utilizes remote terminal unit technology to monitor urban lighting leakage current in real time and automatically cut off the power supply. It can respond quickly when leakage current is detected, effectively preventing electric shock accidents, electrical fires and other safety hazards caused by leakage current, ensuring the safety of people and property, while reducing lighting interruption time caused by faults, improving the reliability and stability of urban lighting, and reducing maintenance costs and safety risks.

[0003] The RTU-based urban lighting leakage automatic power-off protection device mainly monitors current and voltage data in real time. Once leakage is detected, it immediately sends a signal to the control center through the RTU remote terminal unit. After analyzing the data, the control center issues an instruction to quickly disconnect the power supply to the circuit breaker, thereby achieving rapid protection of urban lighting, preventing leakage accidents from escalating, and ensuring public safety.

[0004] In existing technologies, some RTU-based automatic leakage current protection devices for urban lighting rely primarily on manual periodic inspections to detect potential leakage hazards. This approach suffers from slow response times and poor real-time performance. When a leakage fault occurs, manual inspections cannot detect it immediately, leading to prolonged fault persistence and increased safety risks. Some leakage protection devices with automation functions lack sufficient detection accuracy, making it difficult to accurately identify weak leakage currents. In the face of minor leakage situations, they fail to trigger the protection mechanism in a timely manner, resulting in misjudgments and missed detections. Furthermore, traditional devices lack remote monitoring and intelligent control capabilities, making them unsuitable for the wide distribution and dispersed nature of urban lighting equipment. Maintenance personnel cannot remotely monitor leakage situations in real time and perform power-off operations, significantly limiting the intelligent and efficient management of urban lighting. Utility Model Content

[0005] This utility model proposes an automatic power-off protection device for urban lighting leakage current based on RTU, which aims to improve the problem that some existing devices cannot automatically cut off the power to protect against leakage current in urban lighting.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] An RTU-based automatic power-off protection device for urban lighting leakage current includes a control box. An RTU module, a leakage current detection module, and a power-off protection module are fixedly connected inside the control box. The power-off protection module has a protection mechanism inside, and the control box has a disassembly mechanism. The protection mechanism includes a torsion spring. An insulating block is fixedly connected to the left side of the outer wall of the torsion spring. A current trip unit is fixedly connected to the left side of the outer wall of the insulating block. A contact is fixedly connected to the left side of the outer wall of the current trip unit. A coil is fixedly connected to the left side of the outer wall of the contact. A PCB module is fixedly connected to the left side of the outer wall of the coil. A control component is located on the left side of the outer wall of the power-off protection module.

[0008] The above solution involves real-time monitoring of the current signal by the control components of the protection mechanism. When the leakage detection module detects a leakage, the signal is transmitted to the control components, which drive the coil to generate a magnetic field. This magnetic field attracts the contacts, causing the current trip unit to actuate. Under the action of the torsion spring, the circuit is quickly cut off. The insulation block ensures safety. Combined with the RTU module, remote monitoring and control are possible. The disassembly mechanism facilitates maintenance, achieving efficient and safe automatic power-off protection for urban lighting leakage, reducing the risk of safety accidents caused by leakage, and improving the reliability of lighting.

[0009] As a further description of the above technical solution:

[0010] The disassembly mechanism includes a positioning plate, a tube body is fixedly connected to the outer wall of the positioning plate, a fixing block is fixedly connected to the inner right side of the tube body, a docking component is provided inside the fixing block, a support plate is connected to the outer wall of the tube body through the docking component, and a connecting rod is fixedly connected to the outer right side of the support plate.

[0011] The above solution allows for the rapid assembly and disassembly of the tube and support plate via the disassembly mechanism. When maintenance is required, the support plate can be easily separated from the tube by operating the disassembly mechanism, thereby exposing the internal module for easy inspection and replacement. The positioning plate and tube provide stable support, and the fixing block ensures the secure installation of the disassembly mechanism. The disassembly mechanism significantly simplifies the maintenance process, shortens repair time, improves maintenance efficiency, reduces labor costs, and ensures the long-term stable operation of the urban lighting leakage protection device.

[0012] As a further description of the above technical solution:

[0013] The control component includes a reset plate, the outer wall of which is fixedly connected to the left side of the outer wall of the power failure protection module, and a follower block is fixedly connected to the left side of the outer wall of the reset plate.

[0014] The above solution involves a reset plate connected to the power failure protection module within the control component, providing stable support for the entire component. When the device experiences a power failure due to leakage, the follower block can be operated to restore the reset plate to its initial state, thereby putting the protection mechanism back into standby mode and enabling rapid device reset. This design allows for rapid restoration of urban lighting power after fault resolution, reducing lighting interruption time, improving the stability and reliability of urban lighting, and offering simple and convenient operation while reducing maintenance difficulty.

[0015] As a further description of the above technical solution:

[0016] The docking assembly includes a groove, the outer wall of which is formed inside the fixing block. A connecting rod is fixedly connected to the right side of the inside of the groove, and the right side of the outer wall of the connecting rod is fixedly connected to the right side of the inside of the support plate.

[0017] The above solution achieves precise docking by aligning the groove in the docking assembly with the connecting rod. During installation, inserting the connecting rod into the groove quickly secures the support plate, ensuring a stable disassembly mechanism. During maintenance, the reverse operation allows for easy removal of the connecting rod, separating the support plate for convenient internal module inspection. This design simplifies the installation and disassembly process, saves time, and ensures a tight and stable connection, preventing any components from loosening during device operation, extending equipment lifespan, and reducing maintenance costs and workload.

[0018] As a further description of the above technical solution:

[0019] The bottom of the second connecting rod is fixedly connected to an electrode lead tube, the bottom of the electrode lead tube is fixedly connected to a connecting end, and the outer wall of the electrode lead tube is fixedly connected to the inner bottom side of the control box.

[0020] The above solution involves connecting the electrode lead tube to the support plate via connecting rod two, with the bottom connection end used for external circuitry. It is securely fixed to the bottom of the control box. This design creates a safe and stable current transmission channel, effectively protecting internal circuitry from external interference and physical damage. Simultaneously, it standardizes the circuit layout, facilitating circuit inspection and troubleshooting. When the disassembly mechanism is in operation, the electrode lead tube can be exposed simultaneously with component disassembly, facilitating inspection and maintenance of the connection end and circuitry. This improves the ease of device maintenance and electrical safety, ensuring the stable operation of urban lighting.

[0021] As a further description of the above technical solution:

[0022] The control box has a door fixedly connected to its outer wall, and a handle is fixedly connected to the left side of the outer wall of the door.

[0023] The above solution allows the control box door to be easily opened and closed via a handle, facilitating quick access to internal modules by maintenance personnel. The handle design is ergonomic, making operation effortless. When closed, the door effectively prevents dust and water damage, protecting delicate components such as the internal RTU module, extending the device's lifespan, and ensuring stable and reliable leakage protection for urban lighting.

[0024] As a further description of the above technical solution:

[0025] The outer wall of the reset plate is rotatably connected to the inside left side of the power failure protection module, and the left side of the outer wall of the follower block is fixedly connected to the right side of the outer wall of the torsion spring.

[0026] The above solution allows the reset plate to rotate flexibly within the power failure protection module. When a leakage current triggers a power failure, the follower block is connected to the torsion spring. By operating the follower block, the reset plate rotates to reset. This design makes the reset process labor-saving and convenient, and can quickly reverse the state of the torsion spring to reactivate the protection mechanism. This not only enables rapid power restoration after fault elimination and reduces the duration of lighting power outages, but also avoids frequent component disassembly, reduces maintenance difficulty, and effectively improves the emergency response and daily operation and maintenance efficiency of urban lighting leakage protection devices.

[0027] As a further description of the above technical solution:

[0028] The top of the RTU module is fixedly connected to the bottom of the leakage current detection module via a positioning plate, and the bottom of the RTU module is fixedly connected to the top of the power failure protection module via a positioning plate.

[0029] The above solution involves fixing the RTU module to the leakage current detection module and the power failure protection module at the top and bottom via positioning plates, respectively. This ensures precise docking and stable transmission between the modules. This layout optimizes the internal structure of the device, reduces line interference and signal attenuation, and improves the efficiency of data acquisition and processing. At the same time, the stable connection of the positioning plates enhances the overall shock resistance and ensures the reliable operation of the urban lighting leakage current protection device in complex environments.

[0030] This utility model has the following beneficial effects:

[0031] 1. In this utility model, the leakage current detection module monitors urban lighting in real time, enabling rapid response and precise protection against leakage hazards. Once the leakage current exceeds the standard, the protection mechanism in the power-off protection module can instantly cut off the circuit, avoiding safety accidents caused by leakage and greatly improving the safety of urban lighting. At the same time, the RTU module ensures efficient transmission of leakage data and control commands, facilitating remote monitoring and management, and enhancing operational reliability and maintainability. After the fault is cleared, the device has an automatic reset function, which can quickly restore the circuit to normal operation, reduce manual intervention, improve work efficiency, reduce maintenance costs, and ensure that urban lighting can operate continuously, stably, safely and efficiently.

[0032] 2. In this utility model, the RTU module enables the leakage detection module and the power failure protection module to drive the positioning plate to move. The positioning plate drives the groove to move inside the fixed block through the tube. Under the movement of the groove, the connecting rod one drives the support plate to move outside the connecting rod two, which improves the convenience and flexibility of use, and also significantly enhances the safety and reliability. Attached Figure Description

[0033] Figure 1 This is a control box diagram of an automatic power-off protection device for urban lighting leakage current based on RTU proposed in this utility model;

[0034] Figure 2 This utility model presents an RTU module diagram of an automatic power-off protection device for urban lighting leakage current based on RTU.

[0035] Figure 3 This is a PCB module diagram of an automatic power-off protection device for urban lighting leakage current based on an RTU proposed in this utility model;

[0036] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0037] Figure 5 This is a diagram of the tube body of an automatic power-off protection device for urban lighting leakage current based on an RTU, as proposed in this utility model.

[0038] Legend:

[0039] 1. Control box; 2. RTU module; 3. Leakage detection module; 4. Protection mechanism; 410. Control component; 41001. Reset plate; 41002. Follower block; 411. Torsion spring; 412. Insulating block; 413. Current trip unit; 414. Contact; 415. Coil; 416. PCB module; 5. Power failure protection module; 6. Disassembly mechanism; 610. Positioning plate; 611. Tube body; 612. Fixing block; 613. Connecting component; 61301. Groove; 61302. Connecting rod one; 614. Support plate; 615. Connecting rod two; 7. Electrode lead tube; 8. Connecting end; 9. Box door; 10. Handle. Detailed Implementation

[0040] 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.

[0041] Reference Figures 1 to 2This utility model provides an embodiment of an automatic power-off protection device for urban lighting leakage current based on an RTU (Remotely Detected Unit). The device includes a control box 1, which serves as the outer shell of the entire device, protecting the internal components and providing good protection against dust, moisture, and external physical impacts. An RTU module 2 is fixedly connected inside the control box 1, used for remote monitoring and control. The RTU module communicates with a remote monitoring center, transmitting data detected by the leakage current detection module 3 to the monitoring center and receiving control commands from the monitoring center. The leakage current detection module 3, fixedly connected inside the control box 1, monitors leakage current in urban lighting in real time, accurately detecting even minute leakage currents. When the detected leakage current exceeds a set threshold, the leakage current detection module 3 sends a signal to the RTU module and the power-off device. The power protection module 5 triggers corresponding protection actions. The power-off protection module 5 is fixedly connected inside the control box 1. It quickly cuts off the power supply when leakage occurs to protect urban lighting and personnel safety. The power-off protection module 5 is connected to the leakage detection module 3 and the RTU module. It receives leakage signals and performs power-off operations, which can cut off the circuit in a short time. The power-off protection module 5 is equipped with a protection mechanism 4, which is the core component of the power-off protection module 5. It is mainly composed of a torsion spring 411, an insulating block 412, a current trip unit 413, a contact 414, a coil 415, and a PCB module 416. The control box 1 is equipped with a disassembly mechanism 6, which is used to facilitate the disassembly and maintenance of the modules inside the control box 1. It enables the modules to be installed and disassembled quickly and conveniently, improving the convenience and safety of operation and avoiding damage to the modules during disassembly.

[0042] Specifically, the control box 1 serves as the outer casing, providing excellent protection for internal components. It houses an RTU module for remote monitoring and communication, a leakage current detection module 3 that monitors leakage current in real time and sends a signal when the threshold is exceeded, and a power-off protection module 5 that receives the signal and quickly cuts off the power. Its internal protection mechanism 4, composed of a torsion spring 411, is the core component. In addition, the disassembly mechanism 6 inside the control box 1 facilitates the disassembly and maintenance of the modules, ensuring both convenient and safe operation while preventing damage to the modules during disassembly. All modules work together to achieve automatic power-off protection against leakage current.

[0043] The protection mechanism 4 includes a torsion spring 411, which is a mechanical element that stores and releases energy using elastic deformation. In the protection mechanism 4, the torsion spring 411 plays a role in reset and buffering. When leakage occurs, the current trip unit 413 actuates, causing the contact 414 to disconnect the circuit. At this time, the torsion spring 411 is compressed. After the fault is cleared, the torsion spring 411 releases energy, causing the contact 414 to reset and restore the circuit connection. An insulating block 412 is fixedly connected to the left side of the outer wall of the torsion spring 411 to isolate the current trip unit 413, prevent leakage and short circuit, and improve the reliability of the device. The current trip unit 413 is fixedly connected to the left side of the outer wall of the insulating block 412. It is a protection device that controls the circuit opening and closing based on the current magnitude. When the leakage current exceeds the set threshold, the current trip unit 413 generates electromagnetic force, causing the contact 414 to quickly disconnect the circuit, realizing power outage protection. The trip unit 413 features rapid action and high reliability, effectively protecting urban lighting. A contact 414 is fixedly connected to the left side of the outer wall of the current trip unit 413, used to switch the circuit on and off. It has good conductivity and wear resistance, ensuring stable circuit connection. A coil 415 is fixedly connected to the left side of the outer wall of the contact 414, a crucial component of the current trip unit 413. When current flows through, the coil 415 generates a magnetic field, driving the current trip unit 413 to operate. A PCB module 416 is fixedly connected to the left side of the outer wall of the coil 415, serving as a carrier for electronic components. In the protection mechanism 4, the PCB module integrates and connects electronic components, enabling signal transmission and processing, and improving the performance and stability of the protection mechanism 4. A control component 410 is provided on the left side of the outer wall of the power failure protection module 5, used to control the action and reset of the protection mechanism 4. It mainly consists of a reset piece 41001 and a follower block 41002.

[0044] Specifically, the protection mechanism 4 is the core part of the power failure protection module 5. The torsion spring 411 stores and releases energy through elastic deformation. When there is a leakage, it is compressed to open the contact 414. After the fault is cleared, the energy is released to reset the contact 414. The insulating block 412 on the left side of its outer wall isolates the current trip unit 413 to prevent leakage and short circuit and ensure reliable operation of the device. The current trip unit 413 controls the circuit according to the current. When the leakage current exceeds the threshold, it generates electromagnetic force to quickly open the contact 414 to achieve power failure. The contact 414 has good conductivity and wear resistance to ensure circuit stability. The coil 415 is an important component of the current trip unit 413. When energized, it generates a magnetic field to drive its action. The PCB module 416 integrates and connects electronic components to realize signal transmission and processing and improve the performance of the protection mechanism 4. In addition, the control component 410 on the left side of the outer wall of the power failure protection module 5 consists of a reset piece 41001 and a follower block 41002, which is used to control the action and reset of the protection mechanism 4.

[0045] The disassembly mechanism 6 includes a positioning plate 610, which provides an installation position for the tube body 611 and serves as a positioning and support mechanism. It is tightly connected to the RTU module 2, the leakage current detection module 3, and the power failure protection module 5, forming a stable stacked structure among the modules. The tube body 611 is fixedly connected to the outer wall of the positioning plate 610, accommodating the fixing block 612 and the docking assembly 613, providing protection and support. The fixing block 612 is fixedly connected to the right side of the inside of the tube body 611, providing an installation position and support for the docking assembly 613, ensuring a stable fixed position. The docking assembly 613 is located inside the fixing block 612, enabling the tube body 611 to connect with the support... The components connected by plate 614 mainly consist of groove 61301 and connecting rod 61302. The outer wall of tube 611 is connected to support plate 614 through docking assembly 613, which connects docking assembly 613 and connecting rod 615, and provides support for the entire disassembly mechanism 6. Support plate 614 is connected to tube 611 through docking assembly 613. When connecting rod 61302 is inserted into groove 61301, support plate 614 is tightly connected to tube 611, forming a stable structure. Connecting rod 615 is fixedly connected to the right side of outer wall of support plate 614, which connects support plate 614 and further enhances the stability and connectivity of disassembly mechanism 6.

[0046] Specifically, the disassembly mechanism 6 is used to facilitate the disassembly and maintenance of modules within the control box 1. The positioning plate 610 provides an installation position for the tube body 611 and is closely connected to the RTU module, leakage detection module 3, and power failure protection module 5 to form a stable stacked structure. The tube body 611 accommodates the fixing block 612 and the docking assembly 613, serving both protection and support functions. The fixing block 612 on the right side inside provides installation support for the docking assembly 613. The docking assembly 613, as a key connecting component, consists of a groove 61301 and a connecting rod 61302, connecting the tube body 611 to the support plate 614. When the connecting rod 61302 is inserted into the groove 61301, the support plate 614 and the tube body 611 are tightly joined to form a stable whole. The support plate 614 also connects the docking assembly 613 and the connecting rod 615, providing support for the disassembly mechanism 6. The connecting rod 615 further strengthens the connection of the support plate 614, enhancing the stability of the disassembly mechanism 6. The cooperation of all components makes module installation and disassembly more efficient and safe.

[0047] Reference Figures 2 to 3The control component 410 includes a reset piece 41001, which is an elastic element. When a leakage occurs, the reset piece 41001 deforms, causing the follower block 41002 to move, thus activating the protection mechanism 4. After the fault is cleared, the reset piece 41001 returns to its original state, resetting the protection mechanism 4. The outer wall of the reset piece 41001 is fixedly connected to the left side of the outer wall of the power failure protection module 5. The follower block 41002 is fixedly connected to the left side of the outer wall of the reset piece 41001, transmitting the movement of the reset piece 41001 to the torsion spring 411, thereby realizing the action and reset of the protection mechanism 4. It can accurately transmit motion and force. The docking component 613 includes a groove 61301 for fixed connection with the connecting rod 61302, achieving a good connection effect while providing sufficient support to ensure the stability of the connection. The outer wall of 301 is opened inside the fixing block 612. The right side of the inside of the groove 61301 is fixedly connected to the connecting rod 61302. When the module needs to be disassembled, the connecting rod 61302 is pulled out from the groove 61301 by external force, thereby separating the tube 611 from the support plate 614. When the module is installed, the connecting rod 61302 is inserted into the groove 61301 to complete the connection. The right side of the outer wall of the connecting rod 61302 is fixedly connected to the right side of the inside of the support plate 614. The bottom of the connecting rod 615 is fixedly connected to the electrode lead tube 7, which is used to protect and guide the electrode lead to avoid interference and damage from the external environment. The bottom of the electrode lead tube 7 is fixedly connected to the connecting end 8, which is used to connect the electrode lead to the external equipment. The outer wall of the electrode lead tube 7 is fixedly connected to the bottom side of the inside of the control box 1.

[0048] Specifically, the control component 410 and the docking component 613 work together to ensure the functionality of the device and facilitate module maintenance. In the control component 410, the reset piece 41001 acts as an elastic element. When there is a leakage, it deforms and drives the follower block 41002 to activate the protection mechanism 4. After the fault is cleared, the reset piece 41001 returns to its original state, driving the protection mechanism 4 to reset. The follower block 41002 is responsible for accurately transmitting the movement of the reset piece 41001 to the torsion spring 411, ensuring that the protection mechanism 4 can successfully complete its operation and reset. The docking component 613 consists of a groove 61301 and a connecting rod. The 61302 is composed of a groove 61301 inside the fixing block 612, which is fixedly connected to the first connecting rod 61302 to ensure a stable connection. When disassembling the module, the first connecting rod 61302 can be pulled out to separate the tube body 611 from the support plate 614. During installation, it can be inserted to complete the connection, which is convenient for module disassembly and assembly. In addition, the electrode lead tube 7 at the bottom of the second connecting rod 615 is used to protect and guide the electrode lead. Its bottom connection end 8 enables connection with external equipment. The electrode lead tube 7 is fixed inside the bottom side of the control box 1, providing stable protection and connection foundation for the electrode lead.

[0049] Reference Figures 4 to 5The outer wall of the control box 1 is fixedly connected to the door 9, which is used to facilitate the maintenance and repair of the equipment inside the control box 1. The left side of the outer wall of the door 9 is fixedly connected to the handle 10, which is the operating part for the operator to open and close the door 9. The outer wall of the reset plate 41001 is rotatably connected to the inside left side of the power failure protection module 5. The left side of the outer wall of the follower block 41002 is fixedly connected to the right side of the outer wall of the torsion spring 411. The top of the RTU module 2 is fixedly connected to the bottom of the leakage current detection module 3 through the positioning plate 610. The bottom of the RTU module 2 is fixedly connected to the top of the power failure protection module 5 through the positioning plate 610.

[0050] Specifically, the outer wall of the control box 1 is provided with a door 9 for easy maintenance and repair of the internal equipment. The handle 10 on the left side of the door 9 is an operating component, which makes it convenient for operators to open and close the door 9. The reset plate 41001 is rotatably connected to the left side of the power failure protection module 5. Its movement can drive the follower block 41002. The left side of the follower block 41002 is fixedly connected to the right side of the torsion spring 411, which assists the protection mechanism 4 in action and reset. In terms of module connection, the top and bottom of the RTU module 2 are fixedly connected to the bottom of the leakage current detection module 3 and the top of the power failure protection module 5 respectively through the positioning plate 610, thereby forming a stable stacking structure to ensure that each module is installed in an orderly manner in the control box 1 and to ensure the normal operation of the device.

[0051] Working principle: When the equipment is running, the leakage current detection module 3 monitors the city lighting in real time. Once the leakage current exceeds the set threshold, it immediately sends a signal to the RTU module and the power failure protection module 5. After receiving the leakage signal, the RTU module is responsible for communicating with the remote monitoring center, transmitting the leakage detection data, and receiving control commands from the monitoring center. When the protection mechanism 4 in the power failure protection module 5 receives the leakage signal, the current trip unit 413 generates electromagnetic force due to the leakage current exceeding the threshold, which drives the contact 414 to quickly disconnect the circuit and achieve power failure. At this time, the torsion spring 411 is compressed, and the reset piece 41001 in the control component 410 deforms, driving the follower block 41002 to move, causing the protection mechanism 4 to act. When the fault is cleared, the torsion spring 411 releases energy, causing the contact 414 to reset and restore the circuit connection. At the same time, the reset piece 41001 returns to its original state, driving the follower block 41002 to reset the protection mechanism 4, and the entire device returns to normal operation.

[0052] The tube body 611 is connected to the support plate 614 via the docking assembly 613. When the module needs to be installed, the connecting rod 61302 is inserted into the groove 61301 to complete the connection between the tube body 611 and the support plate 614. When the module needs to be disassembled, the connecting rod 61302 is pulled out of the groove 61301 by external force to separate the tube body 611 from the support plate 614. The top and bottom of the RTU module 2 are connected to the bottom of the leakage current detection module 3 and the top of the power failure protection module 5 via the positioning plate 610, respectively.

[0053] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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. An automatic power-off protection device for urban lighting leakage current based on RTU, comprising a control box (1), characterized in that: The control box (1) is fixedly connected to an RTU module (2), a leakage current detection module (3), a power failure protection module (5), a protection mechanism (4), and a disassembly mechanism (6). The protection mechanism (4) includes a torsion spring (411), an insulating block (412) is fixedly connected to the left side of the outer wall of the torsion spring (411), a current trip unit (413) is fixedly connected to the left side of the outer wall of the insulating block (412), a contact (414) is fixedly connected to the left side of the outer wall of the current trip unit (413), a coil (415) is fixedly connected to the left side of the outer wall of the contact (414), a PCB module (416) is fixedly connected to the left side of the outer wall of the coil (415), and a control component (410) is provided on the left side of the outer wall of the power failure protection module (5).

2. The automatic power-off protection device for urban lighting leakage current based on RTU according to claim 1, characterized in that: The disassembly mechanism (6) includes a positioning plate (610), a tube (611) is fixedly connected to the outer wall of the positioning plate (610), a fixing block (612) is fixedly connected to the inner right side of the tube (611), a docking assembly (613) is provided inside the fixing block (612), a support plate (614) is connected to the outer wall of the tube (611) through the docking assembly (613), and a connecting rod (615) is fixedly connected to the outer right side of the support plate (614).

3. The automatic power-off protection device for urban lighting leakage current based on RTU according to claim 1, characterized in that: The control component (410) includes a reset piece (41001), the outer wall of which is fixedly connected to the left side of the outer wall of the power failure protection module (5), and a follower block (41002) is fixedly connected to the left side of the outer wall of the reset piece (41001).

4. The automatic power-off protection device for urban lighting leakage current based on RTU according to claim 2, characterized in that: The docking assembly (613) includes a groove (61301), the outer wall of which is formed inside the fixing block (612), and a connecting rod (61302) is fixedly connected to the right side of the inside of the groove (61301). The right side of the outer wall of the connecting rod (61302) is fixedly connected to the right side of the inside of the support plate (614).

5. The automatic power-off protection device for urban lighting leakage current based on RTU according to claim 2, characterized in that: The bottom of the connecting rod 2 (615) is fixedly connected to an electrode lead tube (7), the bottom of the electrode lead tube (7) is fixedly connected to a connecting end (8), and the outer wall of the electrode lead tube (7) is fixedly connected to the inner bottom side of the control box (1).

6. The automatic power-off protection device for urban lighting leakage current based on RTU according to claim 1, characterized in that: The outer wall of the control box (1) is fixedly connected to a door (9), and a handle (10) is fixedly connected to the left side of the outer wall of the door (9).

7. The automatic power-off protection device for urban lighting leakage current based on RTU according to claim 3, characterized in that: The outer wall of the reset piece (41001) is rotatably connected to the inside left side of the power failure protection module (5), and the outer left side of the follower block (41002) is fixedly connected to the outer right side of the torsion spring (411).

8. The automatic power-off protection device for urban lighting leakage current based on RTU according to claim 1, characterized in that: The top of the RTU module (2) is fixedly connected to the bottom of the leakage current detection module (3) via a positioning plate (610), and the bottom of the RTU module (2) is fixedly connected to the top of the power failure protection module (5) via a positioning plate (610).

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