Adjustable power distribution network loop closing detection device

Abstract

The utility model discloses a kind of adjustable power distribution network loop closing detection devices, belong to power distribution network loop closing detection technical field, including base shell, the main detection block for loop closing electrical parameter detection is slidably connected in base shell one side, and loop closing key electrical parameter detection is detected by electrical parameter sensor built-in in main detection block, the lower portion of main detection block is provided with the secondary detection block for synchronously detecting loop closing line auxiliary parameter, and by stray current acquisition module built-in in secondary detection block, the utility model uses, when, by vertical threaded rod and horizontal threaded rod synchronous rotation, by sliding plate and sliding vertical plate push link rod drive main detection block oblique sliding, adjust the position of main detection block, ensure that its built-in electrical parameter sensor and the loop closing point to be detected are aligned, then power distribution network cable is connected with main detection block by plug, so as to adapt complex line layout such as power distribution network overhead line, avoid the detection blind area caused by alignment difficulty due to traditional fixed position device.

Description

Technical Field

[0001] This utility model relates to the field of power distribution network loop detection technology, specifically an adjustable power distribution network loop detection device. Background Technology

[0002] In the operation and maintenance of power distribution networks, loop closing is a key step in realizing line load transfer and improving power supply reliability. Precise detection of parameters such as voltage difference, phase difference, and stray current before loop closing is the core prerequisite for ensuring the safety of loop closing.

[0003] Chinese patent discloses a power distribution network loop detection device (authorization announcement number CN217521259U), comprising: a U-shaped mounting bracket fixed to a wall or power distribution network support; a U-shaped sliding bracket, wherein the U-shaped sliding bracket is detachably and washably installed on the side of the U-shaped mounting bracket; a sliding plate, wherein the sliding plate is slidably connected to both sides of the inner wall of the U-shaped sliding bracket, and two compression components are provided between the sliding plate and one side of the inner wall of the U-shaped sliding bracket; an inspection body, wherein two L-shaped brackets are fixedly connected to one side of the inspection body, and both L-shaped brackets are slidably connected to the inside of the U-shaped sliding bracket, and two positioning rods are fixedly connected to the outer side of each of the two L-shaped brackets; and two rows of positioning holes are provided on the other side of the inner wall of the U-shaped sliding bracket.

[0004] When using the above-mentioned device, the position can only be adjusted by longitudinal sliding of the U-shaped sliding frame and the sliding plate. This makes the device unsuitable for complex layout scenarios such as inclined overhead lines. Therefore, when facing non-horizontal and non-vertical loop closing points, alignment difficulties are very likely to occur, which leads to a significant offset between the main body of the inspector and the loop closing point. This affects the detection accuracy of core loop closing parameters such as voltage difference and phase difference, resulting in the risk of misjudgment of loop closing operation due to parameter detection distortion. Therefore, this utility model provides an adjustable detection device for distribution network loop closing to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable detection device for the closing loop of a power distribution network, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An adjustable power distribution network loop detection device includes a base shell. A main detection block for detecting loop electrical parameters is slidably connected to one side of the base shell. The main detection block detects key loop electrical parameters through an electrical parameter sensor built into it. A secondary detection block for synchronously detecting auxiliary parameters of the loop circuit is disposed below the main detection block. The secondary detection block detects stray current of the loop circuit through a stray current acquisition module built into it. A vertical adjustment structure for moving the main detection block up and down is rotatably connected to the inner cavity of the base shell. A horizontal adjustment structure for moving the main detection block left and right is also rotatably connected to the inner cavity of the base shell. The main detection block slides obliquely through the cooperation of the vertical and horizontal adjustment structures. A protective soft membrane for isolating dust and moisture is connected to the inner cavity of the base shell.

[0007] As a further embodiment of this utility model, a display screen for real-time display of loop closure detection data is fixedly connected to the outer wall of the main detection block. An adjustment button for adjusting the detection parameter threshold is fixedly installed below the display screen. A light alarm for visual early warning of loop closure anomalies is fixedly connected to the top of the main detection block. A speaker for voice alarm of loop closure anomalies is provided below the light alarm.

[0008] As a further improvement of this utility model, a small display screen for real-time display of auxiliary detection parameters is fixedly connected to the side of the secondary detection block, and a switching button for adjusting the detection mode and data display method is fixedly installed below the small display screen.

[0009] As a further embodiment of this utility model, the vertical adjustment structure includes a vertical threaded rod, the top of which is rotatably connected to the top of the inner cavity of the base shell, and the outer wall of the vertical threaded rod is threaded with a sliding plate for driving the main detection block to move up and down.

[0010] As a further embodiment of this utility model, the lateral adjustment structure includes a lateral threaded rod, which is rotatably connected to the inner cavity of the base shell. The outer wall of the lateral threaded rod is threaded with a sliding block for driving the main detection block to move laterally. The top of the sliding block is fixedly connected to a sliding plate, and the outer wall of the sliding plate is slidably connected to a sliding sleeve.

[0011] As a further embodiment of this utility model, a bar-shaped display screen for centrally displaying the operating status of the device is fixedly connected to the outer wall of the base shell, and a drive button for driving the motor and starting / stopping the motor is fixedly connected below the bar-shaped display screen.

[0012] Compared with the prior art, the beneficial effects of this utility model are: When this utility model is in use, the vertical threaded rod and the horizontal threaded rod rotate synchronously, and the sliding plate and the sliding vertical plate push the connecting rod to drive the main detection block to slide obliquely, thereby adjusting the position of the main detection block and ensuring that its built-in electrical parameter sensor is aligned with the loop point to be detected. Then, the power distribution network cable is connected to the main detection block through a plug, so as to adapt to complex line layouts such as overhead power distribution lines and avoid detection blind spots caused by the difficulty of alignment in traditional fixed position devices. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of an adjustable power distribution network loop detection device.

[0014] Figure 2 This is a schematic diagram of the main detection block in an adjustable power distribution network loop detection device.

[0015] Figure 3 This is a schematic diagram of the connecting rod in an adjustable power distribution network loop detection device.

[0016] Figure 4 This is a schematic diagram of the vertical threaded rod in an adjustable power distribution network loop detection device.

[0017] In the diagram: 1. Base shell; 2. Main detection block; 3. Secondary detection block; 4. Vertical adjustment structure; 5. Horizontal adjustment structure; 6. Protective soft film; 101. Strip display screen; 102. Drive button; 103. Hanging ear; 104. Threaded nail; 201. Display screen; 202. Adjustment button; 203. Light alarm; 204. Speaker; 205. Plug; 301. Small display screen; 302. Switching button; 401. Vertical threaded rod; 402. Sliding plate; 403. Horizontal groove; 404. Connecting rod; 405. Motor; 406. Limiting rod; 407. Slider; 501. Horizontal threaded rod; 502. Sliding block; 503. Sliding upright plate; 504. Sliding sleeve; 505. Motor. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-4In this embodiment of the invention, an adjustable distribution network loop-closing detection device includes a base shell 1. A main detection block 2 for detecting loop-closing electrical parameters is slidably connected to one side of the base shell 1. The main detection block 2 uses an electrical parameter sensor built into it to detect key loop-closing electrical parameters. Below the main detection block 2, a secondary detection block 3 is provided for synchronously detecting auxiliary parameters of the loop-closing line. The secondary detection block 3 uses a stray current acquisition module built into it to detect stray currents in the loop-closing line, preventing tripping accidents after loop closing caused by stray currents, ensuring the safety and reliability of the distribution network loop-closing operation, and avoiding cascading accidents caused by a single parameter failure. A vertical adjustment structure 4 is rotatably connected to the inner cavity of the base shell 1 for moving the main detection block 2 up and down. The transverse adjustment structure 5, which allows the test block 2 to move left and right, works in conjunction with the vertical adjustment structure 4 to allow the main test block 2 to slide obliquely. This adapts the main test block 2 to the complex layout of the power distribution network. By precisely adjusting the position of the main test block 2, it ensures alignment with the loop point to be tested, improving the accuracy of the test data. The inner cavity of the base shell 1 is connected to a protective soft membrane 6 for isolating dust and moisture. When the main test block 2 moves, it stretches the protective soft membrane 6, causing it to deform along with the movement. The protective soft membrane 6's isolation properties prevent dust from entering the interior of the base shell 1, avoiding jamming caused by dust or circuit failure caused by moisture during the operation of the vertical adjustment structure 4 and the transverse adjustment structure 5, which could lead to electromagnetic noise interference with the test data. This maintains a clean inner cavity and a stable electromagnetic environment for the base shell 1.

[0020] Please see Figures 1-4 The main detection block 2 has a display screen 201 fixedly connected to its outer wall for real-time display of loop closure detection data. Below the display screen 201 is an adjustment button 202 for adjusting detection parameter thresholds. The top of the main detection block 2 has a fixedly connected light alarm 203 for visual early warning of loop closure anomalies. Below the light alarm 203 is a speaker 204 for voice alarm of loop closure anomalies. The light alarm 203 and speaker 204 work together so that when the alarm light flashes, the speaker 204 simultaneously emits sound, providing both visual and auditory warnings to alert personnel. Specifically, the main detection block 2 has four such buttons, and the four adjustment buttons 202 and the speaker 204 near the main detection block 2 are all fixedly connected to the outer wall of the main detection block 2. The top and bottom of the main detection block 2 are fixedly connected to plugs 205 for connecting to power distribution network cables. The power distribution network cables are connected to the main detection block 2 via the plugs 205 for quick plug-and-play connection.

[0021] Please see Figures 1-4A small display screen 301 for real-time display of auxiliary detection parameters is fixedly connected to the side of the secondary detection block 3. The small display screen 301 displays the auxiliary data of the closed loop line being detected, which makes it convenient for maintenance personnel to quickly view parameters related to hidden risks of the line. A switching button 302 for adjusting the detection mode and data display mode is fixedly installed below the small display screen 301. There are two switching buttons 302, which are used to switch between real-time monitoring mode and detection data display mode, respectively. Both switching buttons 302 are fixedly connected to the outer wall of the secondary detection block 3. Specifically, the bottom of the power distribution cable that is connected to the main detection block 2 through the plug 205 is fixedly connected to the top of the secondary detection block 3.

[0022] Please see Figures 3-4 The vertical adjustment structure 4 includes a vertical threaded rod 401. The top of the vertical threaded rod 401 is rotatably connected to the top of the inner cavity of the base shell 1 via a bearing. A sliding plate 402 for driving the main detection block 2 to move up and down is threadedly connected to the outer wall of the vertical threaded rod 401. Specifically, the inner cavity of the sliding plate 402 has a transverse groove 403 for providing lateral sliding of the main detection block 2. A connecting rod 404 is slidably connected to the inner cavity of the transverse groove 403. One end of the connecting rod 404 near the main detection block 2 is fixedly connected to the outer wall of the main detection block 2. A motor 405 for driving the vertical threaded rod 401 to rotate is fixedly connected to the bottom of the inner cavity of the base shell 1. A device for limiting the sliding plate 402 is fixedly connected to the inner cavity of the base shell 1. The limiting rod 406 is slidably connected to the outer wall of the limiting rod 406, and the slider 407 is fixedly connected to the sliding plate 402 at one end. Then, when the output shaft of the drive motor 405 drives the vertical threaded rod 401 to rotate, the sliding plate 402 is threadedly connected to the vertical threaded rod 401 and is restricted by the limiting rod 406 on one side, so it cannot rotate synchronously with the threaded rod. Therefore, when the vertical threaded rod 401 rotates, it can drive the sliding plate 402 to move linearly. When rotating forward, the sliding plate 402 rises and when rotating in reverse, it falls. At the same time, when the sliding plate 402 moves, it drives the main detection block 2 to move up and down synchronously through the connecting rod 404 in the transverse groove 403 to achieve height adjustment.

[0023] Please see Figures 3-4The lateral adjustment structure 5 includes a lateral threaded rod 501, which is rotatably connected to the inner cavity of the base shell 1. A support block is rotatably connected to one side of the lateral threaded rod 501 via a bearing. The bottom of the support block is fixedly connected to the bottom of the inner cavity of the base shell 1. A sliding block 502 for driving the main detection block 2 to move laterally is threadedly connected to the outer wall of the lateral threaded rod 501. A sliding vertical plate 503 is fixedly connected to the top of the sliding block 502. A sliding sleeve 504 is slidably connected to the outer wall of the sliding vertical plate 503. Specifically, the end of the connecting rod 404 away from the main detection block 2 is connected to the sliding sleeve. 504 is fixedly connected. The inner cavity of the base shell 1 is fixedly connected to a motor 505 for driving the horizontal threaded rod 501 to rotate. The end of the horizontal threaded rod 501 away from the support block is fixedly connected to the output shaft of the motor 505. By driving the motor 505, its output shaft drives the horizontal threaded rod 501 to rotate. The horizontal threaded rod 501 drives the connecting rod 404 and the main detection block 2 to move laterally through the sliding block 502 and the sliding vertical plate 503. At the same time, when the vertical adjustment structure 4 drives the main detection block 2 to move up and down, the sliding sleeve 504 can slide vertically along the sliding vertical plate 503.

[0024] Please see Figures 1-4 The outer wall of the base shell 1 is fixedly connected to a bar display screen 101 for centrally displaying the operating status of the device. Below the bar display screen 101, a drive button 102 for starting and stopping the motor 405 and motor 505 is fixedly connected. Specifically, both ends of the base shell 1 are fixedly connected to a mounting lug 103 for fixing. The inner cavity of the mounting lug 103 is provided with a threaded nail 104 for fixing. The threaded nail 104 passes through the reserved hole of the mounting lug 103 and is then tightened to fix the base shell 1, thus firmly locking the base shell 1 to the power distribution network site.

[0025] The working principle of this utility model is as follows: In use, this utility model first passes the threaded nail 104 through the pre-drilled hole in the lug 103, then tightens the threaded nail 104 to fix the base shell 1, firmly locking the base shell 1 to the power distribution network site. Then, by pressing the drive button 102, the motor 405 and motor 505 are simultaneously driven, causing the vertical threaded rod 401 and the horizontal threaded rod 501 to rotate synchronously. This, in turn, pushes the connecting rod 404 through the sliding plate 402 and the sliding vertical plate 503, causing the main detection block 2 to slide obliquely, adjusting its position to ensure the built-in electrical parameter sensor is properly positioned. Align the loop-closing point to be tested, and then connect the power distribution network cable to the main detection block 2 through plug 205. The main detection block 2 will detect the loop-closing electrical parameters through its internal electrical parameter sensor. At the same time, the secondary detection block 3 will detect the stray current of the loop-closing line through its internal stray current acquisition module. When the detection result exceeds the set threshold or the stray current is abnormal, the light alarm 203 will flash red light and the loudspeaker 204 will simultaneously emit an alarm sound to prompt the maintenance personnel to stop the loop-closing operation and check for potential line hazards.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An adjustable power distribution network loop-closing detection device, comprising a base shell (1), characterized in that, The base shell (1) is slidably connected to a main detection block (2) for detecting the electrical parameters of the closed loop, and the key electrical parameters of the closed loop are detected by the electrical parameter sensor built into the main detection block (2). A secondary detection block (3) is set below the main detection block (2) for synchronously detecting the auxiliary parameters of the closed loop circuit, and the stray current of the closed loop circuit is detected by the stray current acquisition module built into the secondary detection block (3). The inner cavity of the base shell (1) is rotatably connected to a vertical adjustment structure (4) for driving the main detection block (2) to move up and down. The inner cavity of the base shell (1) is rotatably connected to a horizontal adjustment structure (5) for driving the main detection block (2) to move left and right. The main detection block (2) slides obliquely by the cooperation of the vertical adjustment structure (4) and the horizontal adjustment structure (5). The inner cavity of the base shell (1) is connected to a protective soft membrane (6) for isolating dust and moisture.

2. The adjustable distribution network loop-closing detection device according to claim 1, characterized in that, The outer wall of the main detection block (2) is fixedly connected to a display screen (201) for displaying loop closure detection data in real time. An adjustment button (202) for adjusting the detection parameter threshold is fixedly installed below the display screen (201). A light alarm (203) for visual early warning of loop closure anomalies is fixedly connected to the top of the main detection block (2). A loudspeaker (204) for voice alarm of loop closure anomalies is provided below the light alarm (203).

3. The adjustable distribution network loop-closing detection device according to claim 1, characterized in that, The side of the secondary detection block (3) is fixedly connected to a small display screen (301) for real-time display of auxiliary detection parameters, and a switching button (302) for adjusting the detection mode and data display mode is fixedly installed below the small display screen (301).

4. The adjustable distribution network loop-closing detection device according to claim 1, characterized in that, The vertical adjustment structure (4) includes a vertical threaded rod (401), the top of which is rotatably connected to the top of the inner cavity of the base shell (1), and the outer wall of the vertical threaded rod (401) is threaded with a sliding plate (402) for driving the main detection block (2) to move up and down.

5. The adjustable distribution network loop-closing detection device according to claim 1, characterized in that, The lateral adjustment structure (5) includes a lateral threaded rod (501), which is rotatably connected to the inner cavity of the base shell (1). The outer wall of the lateral threaded rod (501) is threaded with a sliding block (502) for driving the main detection block (2) to move laterally. The top of the sliding block (502) is fixedly connected with a sliding plate (503), and the outer wall of the sliding plate (503) is slidably connected with a sliding sleeve (504).

6. The adjustable distribution network loop-closing detection device according to claim 1, characterized in that, The outer wall of the base shell (1) is fixedly connected to a bar display screen (101) for centrally displaying the operating status of the device, and a drive button (102) is fixedly connected below the bar display screen (101).

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