A multi-terminal flexible dc system dc voltage control device and method

Abstract

The application belongs to the technical field of electric control cabinets, and particularly discloses a multi-terminal flexible DC system DC voltage control device and method, which comprises an electric control cabinet, wherein a flexible interconnection device is built in the electric control cabinet and is used for realizing seamless interconnection of two distribution transformers on the DC side; and a monitoring probe is horizontally inserted into the side of the electric control cabinet and is installed in the electric control cabinet through a connecting component. The rotating mode is adopted to install the rotating rod in the through slot of the inner ring, the opposite two swing rods limit the side of the outer side end of the rotating rod through the pressure head under the elastic force of the first elastic member, and the outer side end of the swing rod extrudes the inner side wall of the inner ring slot, so that the monitoring probe is quickly installed in the electric control cabinet, and the monitoring probe can also be quickly taken out from the electric control cabinet through the reverse rotating mode.

Description

Technical Field

[0001] This invention belongs to the field of electrical control cabinet technology, and specifically relates to a DC voltage control device and method for a multi-terminal flexible DC system. Background Technology

[0002] Most existing flexible interconnection devices are located inside electrical control cabinets. They utilize the control system within the cabinets to achieve seamless interconnection between two distribution transformers. Through intelligent adjustment, they ensure the reliability and safety of power supply to the distribution area, thus realizing flexible power mutual assistance.

[0003] The electrical control cabinet monitors the surrounding environment through monitoring probes and transmits the monitoring data to the control center in real time. The existing monitoring probes are fixedly installed on the electrical control cabinet, making it impossible to quickly replace the monitoring probes on the electrical control cabinet.

[0004] Therefore, it is necessary to invent a DC voltage control device and method for a multi-terminal flexible DC system to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a DC voltage control device and method for a multi-terminal flexible DC system, thereby resolving the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a DC voltage control device for a multi-terminal flexible DC system, comprising: an electrical control cabinet, wherein the electrical control cabinet has a built-in flexible interconnection device for seamless interconnection of two distribution transformers on the DC side; a monitoring probe, horizontally inserted into the side of the electrical control cabinet, and the monitoring probe is installed inside the electrical control cabinet via a connecting component; the connecting component comprises: an inner ring, fixedly installed on the inner wall of the electrical control cabinet; a center frame, slidably installed at the center of the inner ring via a sliding part; a rotating rod, rotatably inserted into a through slot at the center of the center frame, and having two opposing sides fixed at the outer end of the rotating rod; a swing rod, rotatably installed on the inner side of the monitoring probe; a first elastic element, installed on the inner side of the monitoring probe, for driving the pressure head at the inner end of the swing rod to press against the inner side of the side; an arc-shaped strip, two arc-shaped strips fixedly connected to the outer circumference of the rotating rod; a threaded groove, two threaded grooves provided on the inner wall of the through slot; and an inner ring groove, an inner ring groove provided on the outer side of the center frame.

[0007] Furthermore, the inner wall of the through groove is provided with two threaded grooves, and the two arc-shaped bars correspond one-to-one with the two threaded grooves. The rotating rod is rotatably installed in the threaded grooves through the arc-shaped bars.

[0008] Furthermore, the elastic restoring force of the first elastic element drives the outer end of the swing arm to press against the inner wall of the inner ring groove, the inner diameter of the inner ring groove being larger than the inner diameter of the through groove.

[0009] Furthermore, a connecting rod is fixed to the inner end of the monitoring probe, and two sets of limiting parts are fixedly connected to the inner side of the connecting rod. The limiting parts include: two parallel convex plates, a swing rod located at the inner end of the convex plate, the side of the swing rod passing through the inner end of the convex plate through a side rod, and the swing rod rotating at the inner end of the convex plate through the side rod.

[0010] Furthermore, a crossbar is fixed to the side of the swing arm, the crossbar is located outside the convex plate, and the crossbar is connected to the surface of the convex plate through a first elastic element.

[0011] Furthermore, the sliding part includes: a side block and a side frame; two opposing side frames fixed to the inner side wall of the inner ring, the two side frames being disposed on the inner side of the inner ring, the sliding part also includes two opposing side blocks fixed to the outer circumferential side of the central frame, the side blocks being located inside the side frames, the inner side of the side frames being provided with a sliding groove corresponding to the side block, and the central frame allowing the side block to slide inside the side frame through the sliding groove.

[0012] Furthermore, a second elastic element is provided inside the side frame, the inner side of the side block is connected to the inside of the side frame through the second elastic element, and the inner side of the side block is penetrated through the inner side of the side frame by a pull strip, the inner end of the pull strip is limited by a round rod to define the side block.

[0013] The present invention also provides a DC voltage control method for a multi-terminal flexible DC system, the method applying the aforementioned multi-terminal flexible DC system DC voltage control device, comprising the following steps:

[0014] Bring the outer end of the rotating rod close to the inner side of the monitoring probe, so that the side of the rotating rod is close to the pressure head at the inner end of the swing rod, until the outer side of the side is in contact with the surface of the pressure head, at which point the pressure head is in a vertical position.

[0015] The moving rotating rod pushes the pressure head through the side, and the pressure head causes the swing rod to rotate through the side rod. The outer end of the swing rod gradually moves away from the convex plate. The rotating swing rod pulls the first elastic element through the crossbar until the outer side of the side is in contact with the inner end face of the connecting rod. The first elastic element causes the outer end of the swing rod to approach the convex plate through the crossbar. At this time, the swing rod is limited by the side through the pressure head.

[0016] The inner side of the monitoring probe is connected by a connecting rod and a connecting component, which brings the rotating rod close to the central frame. The arc-shaped strip on the surface of the rotating rod corresponds to the threaded groove. Rotating the monitoring probe causes the rotating rod to rotate inside the through groove. The rotating rod rotates inside the threaded groove through the arc-shaped strip. The rotating rod causes the connecting component to enter the inner ring groove.

[0017] The movable connecting component allows the outer end of the swing arm to contact the inner wall of the inner ring groove, and the inner ring groove limits the inner end of the swing arm, thus completing the real-time installation of the monitoring probe.

[0018] Multiple monitoring probes monitor the area around the electrical control cabinet, and these probes transmit monitoring information to the control center in real time via signal transmitting devices. If a monitoring probe is unable to continue transmitting monitoring information to the control center, the control center dispatches testing personnel to repair the monitoring probes on the electrical control cabinet.

[0019] The technical effects and advantages of this invention are as follows:

[0020] This invention uses rotation to install the rotating rod inside the through groove of the inner ring. Under the elastic force of the first elastic element, the two opposing swing rods limit the side of the outer end of the rotating rod through the pressure head, and cause the outer end of the swing rod to press against the inner side wall of the inner ring groove. This ensures that the monitoring probe can be quickly installed inside the electrical control cabinet, and the monitoring probe can also be quickly removed from the electrical control cabinet by rotating in the opposite direction. Attached Figure Description

[0021] Figure 1 This is an overall schematic diagram of the DC voltage control device for a multi-terminal flexible DC system according to an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the monitoring probe being inserted into the inner ring according to an embodiment of the present invention;

[0023] Figure 3 This is a schematic diagram of the inner ring connecting to the central frame via a sliding part according to an embodiment of the present invention;

[0024] Figure 4 This is a schematic diagram of the splitting and mating of the rotating rod and the central frame according to an embodiment of the present invention;

[0025] Figure 5 This is a schematic diagram of the central frame corresponding to the side edge through the inner ring groove in an embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the inner end of the connecting rod being connected to the rotating rod via a connecting component according to an embodiment of the present invention;

[0027] In the diagram: 1. Electrical control cabinet; 2. Monitoring probe; 3. Inner ring; 4. Center frame; 5. Rotating rod; 501. Side; 6. Swing rod; 601. Pressure head; 7. First elastic element; 8. Arc strip; 9. Threaded groove; 10. Inner ring groove; 11. Connecting rod; 12. Protruding plate; 13. Side rod; 14. Crossbar; 15. Side block; 16. Side frame; 161. Slide groove; 17. Second elastic element; 18. Tie bar; 19. Round rod. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0029] This invention provides a DC voltage control device for a multi-terminal flexible DC system, such as... Figure 1 As shown, the system includes: an electrical control cabinet 1, which has a rectangular shape and incorporates a flexible interconnection device. This device enables seamless interconnection between two distribution transformers on the DC side, providing real-time power balance and precisely addressing challenges such as heavy loads, unbalanced loads, and large load differences in the distribution area. Through intelligent adjustment, it ensures the reliability and safety of the power supply to the distribution area, achieving flexible power balance. The system also includes research, testing, and debugging of the flexible interconnection device and the safe and stable operation of the entire distribution area power supply system.

[0030] Multiple monitoring probes 2 are horizontally inserted on the outer side of the electrical control cabinet 1. The monitoring probes 2 are cameras commonly used in the prior art. The electrical control cabinet 1 has a built-in signal transmitting device. The monitoring probes 2 are electrically connected to the signal transmitting device. The monitoring probes 2 are installed inside the electrical control cabinet 1 through connecting components.

[0031] Multiple monitoring probes 2 monitor the area around the electrical control cabinet 1, and the monitoring probes 2 send monitoring information to the control center in real time through a signal transmitting device. If the monitoring probes 2 are unable to continue sending monitoring information to the control center, the control center dispatches testing personnel to repair the electrical control cabinet 1.

[0032] In order to install the monitoring probe 2 inside the electrical control cabinet 1, the monitoring probe 2 is defined by connecting components. Figures 1 to 5 In the process, the connecting components include: inner ring 3, center frame 4, rotating rod 5, swing rod 6, first elastic element 7, arc strip 8, threaded groove 9 and inner ring groove 10, the first elastic element 7 is set as a spring sheet; a connecting rod 11 is fixed to the inner end of the monitoring probe 2, and two sets of limiting parts are fixed to the inner side of the connecting rod 11. The connecting rod 11 is connected to the swing rod 6 through the limiting parts. The swing rod 6 rotates at the inner end of the limiting parts, and the swing rod 6 is connected to the limiting parts through the first elastic element 7. The limiting parts clamp the side edge 501 surface of the outer end of the rotating rod 5 through the pressure head 601 of the two swing rods 6.

[0033] Two arc-shaped strips 8 are fixed to the outer circumference of the rotating rod 5. A through groove corresponding to the rotating rod 5 is provided at the center of the central frame 4. Two threaded grooves 9 are provided on the inner side wall of the through groove. The two arc-shaped strips 8 correspond one-to-one with the two threaded grooves 9. The rotating rod 5 rotates inside the threaded grooves 9 through the arc-shaped strips 8. An inner ring groove 10 is provided on the outer side of the central frame 4. The elastic force of the first elastic element 7 causes the outer end of the swing rod 6 to press against the inner side wall of the inner ring groove 10.

[0034] Specifically, the inner end of the hand-held rotating rod 5 is held, and the side 501 of the outer end of the rotating rod 5 is brought close to the pressure head 601 of the inner end of the swing rod 6 until the outer side of the side 501 is in contact with the surface of the pressure head 601. The rotating rod 5 continues to move, causing the pressure head 601 and the swing rod 6 to rotate through the side 501. The outer end of the rotating swing rod 6 moves away from the limiting part, and the outer end of the swing rod 6 pulls the first elastic member 7. When the outer side of the side 501 is in contact with the inner end face of the connecting rod 11, the first elastic member 7 pulls the swing rod 6, and the first elastic member 7 makes the pressure head 601 in a vertical state through the swing rod 6. Both swing rods 6 limit the side 501 through the pressure head 601. At this time, the connecting rod 11 clamps the side 501 of the outer end of the rotating rod 5 through the connecting component.

[0035] Holding the outer end of the monitoring probe 2, push the rotating rod 5 into the inner ring 3 of the electrical control cabinet 1 until the inner end of the rotating rod 5 is inserted into the through groove through the inner ring groove 10. At this time, the arc-shaped strip 8 on the surface of the rotating rod 5 corresponds to the threaded groove 9 on the inner side wall of the through groove. Rotate the monitoring probe 2. The rotating monitoring probe 2 causes the rotating rod 5 to rotate inside the through groove through the connecting component and the side 501. The rotating rod 5 rotates inside the threaded groove 9 through the arc-shaped strip 8. While the rotating arc-shaped strip 8 moves inside the threaded groove 9, the monitoring probe 2 and the connecting rod 11 move closer to the inner ring 3.

[0036] The inwardly moving connecting rod 11 causes the swing rod 6 to enter the inner ring groove 10 through the limiting part. The elastic force of the first elastic member 7 causes the outer end of the swing rod 6 to be pressed against the inner wall of the inner ring groove 10 until the inner end face of the connecting rod 11 is attached to the outer side of the center frame 4. The monitoring probe 2 is installed inside the electrical control cabinet 1 through the connecting component.

[0037] In this embodiment, the rotating rod 5 is installed inside the through groove of the inner ring 3 by rotation. Under the elastic force of the first elastic member 7, the two opposing swing rods 6 limit the side edge 501 of the outer end of the rotating rod 5 by the pressure head 601, and make the outer end of the swing rod 6 press against the inner side wall of the inner ring groove 10, so as to ensure that the monitoring probe 2 can be quickly installed inside the electrical control cabinet 1, and the monitoring probe 2 can also be quickly removed from the electrical control cabinet 1 by reverse rotation.

[0038] In order to allow the rotating rod 5 to be installed on the inner end of the connecting rod 11, the side 501 of the rotating rod 5 is connected by a limiting part. Figure 5 and Figure 6 In the middle, two sets of limiting parts are fixed on the inner side of the connecting rod 11. The limiting parts include two parallel protrusions 12, which are fixed to the inner end face of the connecting rod 11. The swing rod 6 is located at the inner end of the protrusion 12. The side of the swing rod 6 passes through the inner end of the protrusion 12 through the side rod 13, and the swing rod 6 rotates at the inner end of the protrusion 12 through the side rod 13. A crossbar 14 is fixed on the side of the swing rod 6. The crossbar 14 is located outside the protrusion 12 and is connected to the surface of the protrusion 12 through the first elastic member 7.

[0039] Specifically, the elastic force of the first elastic element 7 limits the swing rod 6 through the crossbar 14. At this time, the pressure head 601 at the inner end of the swing rod 6 is in a vertical state. The rotating rod 5 causes the side 501 to approach the inner end face of the connecting rod 11 until the side 501 is in contact with the surface of the pressure head 601. The rotating rod 5 continues to move, causing the swing rod 6 to rotate through the side 501. The swing rod 6 causes the side rod 13 to rotate at the inner end of the convex plate 12. The rotating swing rod 6 pulls the first elastic element 7 through the crossbar 14. The surface of the pressure head 601 slides on the surface of the side 501 until the side 501 moves between the two convex plates 12 and the side 501 separates from the pressure head 601. The first elastic element 7 causes the outer end of the swing rod 6 to approach the convex plate 12. When the pressure head 601 is in a vertical state, the two opposing swing rods 6 limit the outer end of the rotating rod 5 through the pressure head 601.

[0040] In this embodiment, the elastic force of the first elastic element 7 facilitates the installation of the side 501 of the outer end of the rotating rod 5 between the two protruding plates 12. The two vertical pressure heads 601 cooperate to limit the side 501, ensuring the connection stability between the rotating rod 5 and the monitoring probe 2.

[0041] To allow monitoring probe 2 to be moved out of the electrical control cabinet 1, the sliding part pushes monitoring probe 2. Figures 1 to 6 In the middle, the sliding part includes: side block 15 and side frame 16; two opposing side frames 16 are fixed to the inner side wall of the inner ring 3, the side frames 16 are located inside the inner side of the inner ring 3, and two opposing side blocks 15 are fixed to the outer side of the circumference of the center frame 4, the side blocks 15 are located inside the side frames 16, and the inner side of the side frame 16 is provided with a sliding groove 161 corresponding to the side block 15. A second elastic element 17 is provided inside the side frame 16, the second elastic element 17 is set as a spring, the inner side of the side block 15 is connected to the inside of the side frame 16 through the second elastic element 17, and the inner side of the side block 15 is penetrated through the inner side of the side frame 16 by a pull strip 18, the inner end of the pull strip 18 is limited by a round rod 19 for the side block 15.

[0042] Specifically, the center frame 4 is pulled, and the center frame 4 slides the side block 15 inside the side frame 16 through the slide groove 161. The sliding side block 15 cooperates to squeeze the second elastic member 17 until the pull bar 18 is on the inner side of the side frame 16. The inner end of the pull bar 18 is limited by the rubber round rod 19. Then the monitoring probe 2 rotates the rotating rod 5 and inserts it into the center frame 4 through the connecting component.

[0043] When the inside of the electrical control cabinet 1 catches fire due to a short circuit, the high temperature causes the rubber rod 19 to melt. The melted rod 19 can no longer be limited by the side block 15 through the second elastic member 17. The second elastic member 17 pushes the center frame 4 close to the inner wall of the electrical control cabinet 1 through the side block 15. The outwardly moved center frame 4 causes the monitoring probe 2 to move out of the electrical control cabinet 1 through the connecting component.

[0044] When the outer side of the side block 15 is attached to the outer side of the slide groove 161, the monitoring probe 2 continues to move under the action of inertia. The center frame 4 limits the rotating rod 5 through the threaded groove 9. The moving monitoring probe 2 pulls the convex plate 12 through the connecting rod 11. The outwardly moving convex plate 12 causes the pressure head 601 to squeeze the side 501. The pressure head 601 causes the swing rod 6 to squeeze the first elastic element 7 until the pressure head 601 moves away from the side 501. The monitoring probe 2, which continues to move outward, moves out of the electrical control cabinet 1. At this time, when the monitoring probe 2 can no longer send monitoring information to the control center, the control center sends inspection personnel to repair the electrical control cabinet 1 and can also recover the moved-out monitoring probe 2.

[0045] In this embodiment, the central frame 4 and the monitoring probe 2 are defined by the round rod 19. When the inside of the electrical control cabinet 1 catches fire due to a short circuit, the high temperature causes the rubber round rod 19 to melt. The elastic force of the second elastic element 17 causes the monitoring probe 2 to move out of the electrical control cabinet 1, which makes it convenient for the testing personnel to repair the electrical control cabinet 1 and retrieve the moved monitoring probe 2.

[0046] This invention also provides a DC voltage control method for a multi-terminal flexible DC system, referring to... Figures 1 to 6 As shown, it includes the following steps:

[0047] Bring the outer end of the rotating rod 5 close to the inner side of the monitoring probe 2. The rotating rod 5 will bring the side 501 close to the pressure head 601 at the inner end of the swing rod 6 until the outer side of the side 501 is in contact with the surface of the pressure head 601. At this time, the pressure head 601 is in a vertical state.

[0048] The moving rotating rod 5 pushes the pressure head 601 through the side 501. The pressure head 601 causes the swing rod 6 to rotate through the side rod 13. The outer end of the swing rod 6 gradually moves away from the convex plate 12. The rotating swing rod 6 pulls the first elastic element 7 through the cross rod 14 until the outer side of the side 501 is in contact with the inner end face of the connecting rod 11. The first elastic element 7 causes the outer end of the swing rod 6 to approach the convex plate 12 through the cross rod 14. At this time, the swing rod 6 limits the side 501 through the pressure head 601.

[0049] The inner side of the monitoring probe 2 is connected by the connecting rod 11 and the connecting component, which makes the rotating rod 5 close to the center frame 4. The arc strip 8 on the surface of the rotating rod 5 corresponds to the threaded groove 9. Rotating the monitoring probe 2 causes the rotating rod 5 to rotate inside the through groove. The rotating rod 5 rotates inside the threaded groove 9 through the arc strip 8. The rotating rod 5 causes the connecting component to enter the inner ring groove 10.

[0050] The movable connecting component causes the outer end of the swing arm 6 to contact the inner wall of the inner ring groove 10, and the inner ring groove 10 limits the inner end of the swing arm 6, thus completing the real-time installation of the monitoring probe 2.

[0051] Multiple monitoring probes 2 monitor the area around the electrical control cabinet 1, and the monitoring probes 2 send monitoring information to the control center in real time through a signal transmitting device. If the monitoring probes 2 are unable to continue sending monitoring information to the control center, the control center dispatches testing personnel to repair the monitoring probes 2 monitoring the electrical control cabinet 1.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it.

Claims

1. A DC voltage control device for a multi-terminal flexible DC system, characterized in that, include: Electrical control cabinet (1), wherein the electrical control cabinet (1) has a built-in flexible interconnection device for realizing seamless interconnection of two distribution transformers on the DC side; The monitoring probe (2) is horizontally inserted into the side of the electrical control cabinet (1), and the monitoring probe (2) is installed inside the electrical control cabinet (1) through the connecting parts; The connecting component includes: The inner ring (3) is fixedly installed on the inner side wall of the electrical control cabinet (1); The center frame (4) is slidably mounted at the center of the inner ring (3) via a sliding part; The rotating rod (5) is rotatably inserted into the through slot at the center of the central frame (4), and the outer end of the rotating rod (5) is fixed with two opposing sides (501). The swing arm (6) is rotatably mounted on the inner side of the monitoring probe (2); The first elastic element (7) is installed on the inner side of the monitoring probe (2) and is used to drive the pressure head (601) at the inner end of the swing arm (6) to press the inner side of the side (501); Two arc-shaped strips (8) are fixedly connected to the outer circumference of the rotating rod (5); Two threaded grooves (9) are provided on the inner sidewall of the through groove; The inner ring groove (10) is located on the outer side of the central frame (4).

2. The DC voltage control device for a multi-terminal flexible DC system according to claim 1, characterized in that, The inner wall of the through groove is provided with two threaded grooves (9), and two arc-shaped bars (8) correspond one-to-one with the two threaded grooves (9). The rotating rod (5) is rotatably installed in the threaded grooves (9) through the arc-shaped bars (8).

3. The DC voltage control device for a multi-terminal flexible DC system according to claim 2, characterized in that, The elastic restoring force of the first elastic element (7) drives the outer end of the swing rod (6) to press against the inner wall of the inner ring groove (10), the inner diameter of the inner ring groove (10) being larger than the inner diameter of the through groove.

4. The DC voltage control device for a multi-terminal flexible DC system according to claim 3, characterized in that, The monitoring probe (2) has a connecting rod (11) fixed to its inner end. The inner side of the connecting rod (11) is fixedly connected to two sets of limiting parts. The limiting parts include two parallel convex plates (12). The swing rod (6) is located at the inner end of the convex plate (12). The side of the swing rod (6) passes through the inner end of the convex plate (12) through the side rod (13), and the swing rod (6) rotates at the inner end of the convex plate (12) through the side rod (13).

5. The DC voltage control device for a multi-terminal flexible DC system according to claim 4, characterized in that, The swing arm (6) has a crossbar (14) fixed on its side. The crossbar (14) is located outside the convex plate (12), and the crossbar (14) is connected to the surface of the convex plate (12) through the first elastic element (7).

6. The DC voltage control device for a multi-terminal flexible DC system according to claim 1, characterized in that, The sliding part includes: Two opposing side frames (16) are fixed to the inner side wall of the inner ring (3), and the two side frames (16) are located on the inner side of the inner ring (3); the sliding part also includes two opposing side blocks (15) fixed to the outer circumferential side of the center frame (4), the side blocks (15) are located inside the side frames (16), and the inner side of the side frame (16) is provided with a sliding groove (161) corresponding to the side block (15), and the center frame (4) allows the side block (15) to slide inside the side frame (16) through the sliding groove (161).

7. The DC voltage control device for a multi-terminal flexible DC system according to claim 6, characterized in that, The side frame (16) is provided with a second elastic element (17). The inner side of the side block (15) is connected to the inside of the side frame (16) through the second elastic element (17). The inner side of the side block (15) is penetrated through the inner side of the side frame (16) by a pull strip (18). The inner end of the pull strip (18) is limited by a round rod (19) to the side block (15).

8. A method for DC voltage control of a multi-terminal flexible HVDC system, characterized by, Based on the DC voltage control device for a multi-terminal flexible DC system as described in any one of claims 1 to 7, the method includes the following steps: Bring the outer end of the rotating rod (5) close to the inner side of the monitoring probe (2), and make the side (501) close to the pressure head (601) at the inner end of the swing rod (6) until the outer side of the side (501) is in contact with the surface of the pressure head (601). At this time, the pressure head (601) is in a vertical state. The moving rotating rod (5) pushes the pressure head (601) through the side (501), and the pressure head (601) causes the swing rod (6) to rotate through the side rod (13). The outer end of the swing rod (6) gradually moves away from the convex plate (12). The rotating swing rod (6) pulls the first elastic element (7) through the cross bar (14) until the outer side of the side (501) is in contact with the inner end face of the connecting rod (11). The first elastic element (7) causes the outer end of the swing rod (6) to approach the convex plate (12) through the cross bar (14). At this time, the swing rod (6) limits the side (501) through the pressure head (601). The inner side of the monitoring probe (2) is connected by a connecting rod (11) and a connecting component, which makes the rotating rod (5) close to the center frame (4). The arc strip (8) on the surface of the rotating rod (5) corresponds to the thread groove (9). Rotating the monitoring probe (2) makes the rotating rod (5) rotate inside the through groove. The rotating rod (5) rotates inside the thread groove (9) through the arc strip (8). The rotating rod (5) causes the connecting component to enter the inner ring groove (10). The moving connecting component causes the outer end of the swing arm (6) to contact the inner wall of the inner ring groove (10), and the inner ring groove (10) limits the inner end of the swing arm (6), thus completing the real-time installation of the monitoring probe (2); Multiple monitoring probes (2) monitor the area around the electrical control cabinet (1), and the monitoring probes (2) send monitoring information to the control center in real time through a signal transmitting device.

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