A fault detection device for a low-voltage power distribution cabinet in operation

Abstract

The present invention relates to the technical field of power equipment detection, and discloses a fault detection device for a low-voltage power distribution cabinet in operation, including a fixing plate. One side of the fixing plate is provided with a power motor, and the power output end of the power motor passes through the fixing plate. The power output end of the power motor is fixedly connected with a fixing block, and the fixing block is fixedly connected with a fixing square tube. The other end of the fixing square tube is internally slidably connected with a sliding square rod. A plurality of sliding blocks are slidably connected to the fixing square tube and the sliding square rod. One side of each sliding block is fixedly connected with a mounting block, and springs are arranged between the sliding blocks. The springs are sleeved on the fixing square tube and the sliding square rod. The fault detection device for the low-voltage power distribution cabinet in operation can perform an all-round scan of the interior of the power distribution cabinet, so that every corner inside the power distribution cabinet can be scanned.

Description

Technical Field

[0001] The present invention relates to the technical field of power equipment detection, and particularly to a fault detection device for a low-voltage power distribution cabinet in operation. Background Art

[0002] With the development and intelligentization process of the power system, the real-time monitoring and accurate diagnosis of the state of power equipment are crucial for ensuring the stable operation of the power system and the safe and reliable operation of equipment. Traditional equipment state monitoring methods often rely on offline manual inspections and periodic maintenance, which have problems such as high consumption of human resources, inaccurate data collection, and low monitoring frequency. The emergence of advanced technologies such as the Internet of Things, big data, and artificial intelligence has brought revolutionary changes to the state monitoring of power equipment. The low-voltage power distribution cabinet fault detection device, as an important technological innovation in the field of power equipment monitoring and diagnosis, realizes the real-time monitoring and control of the operating state of the power distribution cabinet by integrating advanced sensors, data collection, processing and analysis, and communication technologies. This device can accurately capture key parameters such as voltage, current, and temperature inside the power distribution cabinet, and through real-time data analysis, timely discover and accurately diagnose potential faults, thereby effectively preventing power system instability or safety accidents caused by equipment failures.

[0003] The existing fault detection device for a low-voltage power distribution cabinet in operation needs to scan the inside of the power distribution cabinet bit by bit during the process of detecting faults inside the power distribution cabinet, and there may be a situation of missed scanning, which may cause blind spots in the scanning inside the power distribution cabinet, resulting in problems of subsequent faults; therefore, it does not meet the existing requirements, and for this reason, we propose a fault detection device for a low-voltage power distribution cabinet in operation. Summary of the Invention

[0004] The present invention provides a fault detection device for a low-voltage power distribution cabinet in operation, which can perform a full-range scan of the inside of the power distribution cabinet, so that every corner inside the power distribution cabinet can be scanned, and solves the problem mentioned in the above background art that during the process of detecting faults inside the power distribution cabinet, it is necessary to scan the inside of the power distribution cabinet bit by bit, and there may be a situation of missed scanning, which may cause blind spots in the scanning inside the power distribution cabinet, resulting in problems of subsequent faults.

[0005] The present invention provides the following technical solution: A fault detection device for a low-voltage power distribution cabinet during operation, including a fixing plate. On one side of the fixing plate, there is a power motor. The power output end of the power motor passes through the fixing plate. The power output end of the power motor is fixedly connected to a fixing block. A fixing square tube is fixedly connected to the fixing block. A sliding square rod is slidably connected inside the other end of the fixing square tube. A plurality of sliding blocks are slidably connected to the fixing square tube and the sliding square rod. On one side of the sliding block, there is an installation block. A spring is arranged between each sliding block. The spring is sleeved on the fixing square tube and the sliding square rod. A sliding groove is opened on the installation block. A slider is slidably connected in the sliding groove. On one side of the slider, there is a detection head. The detection head is used to detect the operating condition inside the power distribution cabinet;

[0006] One end of the sliding square rod is fixedly connected to a guiding block. On one side of the guiding block, there is a sliding column fixedly connected.

[0007] As an optional solution of the fault detection device for a low-voltage power distribution cabinet during operation according to the present invention, wherein: On one side of the fixing plate, there is a guiding square sliding groove opened. The sliding column is slidably connected to the guiding square sliding groove. On the same side of the guiding square sliding groove and in the middle of the fixing plate, there is a concave-convex sliding groove opened. On the other side of the fixing plate, there is a handle for convenient taking. The handle and the power motor are on the same side;

[0008] When the sliding column slides out from the corner of the guiding square sliding groove, the sliding square rod slides into the fixing square tube.

[0009] As an optional solution of the fault detection device for a low-voltage power distribution cabinet during operation according to the present invention, wherein: A sliding tube is slidably connected to the fixing square tube. At the end of the sliding tube close to the fixing block, on one side of the sliding tube close to the fixing plate, there is a sliding column fixedly connected. The sliding column is slidably connected to the concave-convex sliding groove. On the other side of the sliding tube, there is a protruding block fixedly connected.

[0010] As an optional solution of the fault detection device for a low-voltage power distribution cabinet during operation according to the present invention, wherein: On one side of the fixing block, there is a first hydraulic oil tank fixedly connected. A first sealing rod is slidably connected inside the first hydraulic oil tank. The other end of the first sealing rod is fixedly connected to one side of the protruding block. One end of the first hydraulic oil tank is communicated with an oil delivery pipe;

[0011] When the sliding column slides in the groove of the concave-convex sliding groove, the first sealing rod squeezes the hydraulic oil in the first hydraulic oil tank.

[0012] As an alternative solution for the fault detection device of a low-voltage power distribution cabinet in operation according to the present invention, wherein: one end of the fixed square tube close to the sliding tube is fixedly connected with a mounting plate, one side of the mounting plate abuts against the spring, a control rod is fixedly connected to the mounting plate, a plurality of fixed rods are fixedly connected to the control rod, the other ends of the fixed rods are all fixedly connected with sliding balls, and the fixed rods and the sliding balls are both located inside the mounting block.

[0013] As an alternative solution for the fault detection device of a low-voltage power distribution cabinet in operation according to the present invention, wherein: a second hydraulic oil chamber is fixedly arranged inside the mounting block, a sliding sealing tube is slidably connected inside the second hydraulic oil chamber, a spring is arranged between the second hydraulic oil chamber and the sliding sealing tube, a second sealing rod is slidably connected inside the sliding sealing tube, one end of the second hydraulic oil chamber is fixedly communicated with the oil delivery pipe, a sealing block is slidably connected to one side of the second hydraulic oil chamber, and the sealing block is used to change the size of the space inside the second hydraulic oil chamber.

[0014] As an alternative solution for the fault detection device of a low-voltage power distribution cabinet in operation according to the present invention, wherein: the upper end of the second sealing rod is fixedly connected with a connecting rod, and the other end of the connecting rod is fixedly connected with the slider.

[0015] As an alternative solution for the fault detection device of a low-voltage power distribution cabinet in operation according to the present invention, wherein: a resisting block is fixedly connected inside the second hydraulic oil chamber, and the resisting block abuts against one end of the sealing block.

[0016] As an alternative solution for the fault detection device of a low-voltage power distribution cabinet in operation according to the present invention, wherein: one side of the sealing block is fixedly connected with a control block, an inclined sliding groove is formed inside the control block, and the inclined sliding groove is slidably connected with the sliding ball;

[0017] When the sliding ball slides upward from bottom in the inclined sliding groove, the space inside the second hydraulic oil chamber gradually increases.

[0018] The present invention has the following beneficial effects:

[0019] 1. For the fault detection device of the low-voltage power distribution cabinet in operation, the power motor drives the fixed square tube and the sliding square rod to rotate circumferentially around the periphery of the power distribution cabinet. At the same time, through the design of multiple detection heads, the detection heads can scan and detect the whole inside the power distribution cabinet, which can prevent the situation of missed scanning and make the detection result more accurate.

[0020] 2. The fault detection device for the operating low-voltage power distribution cabinet, through the design of the sliding connection between the sliding square rod and the fixed square pipe, enables the fixed square pipe and the sliding square rod to expand and contract according to the shape of the power distribution cabinet, so that the detection head can always scan the inside of the power distribution cabinet;

[0021] Moreover, through the design of the spring, when the fixed square pipe and the sliding square rod contract, the distance between each detection head can always be in a relatively equal state, enabling the detection heads to cooperate with each other and further improving the accuracy of the detection results inside the power distribution cabinet.

[0022] 3. The fault detection device for the operating low-voltage power distribution cabinet, through the cooperation between the first hydraulic oil tank and the second hydraulic oil tank, enables the detection head to slide, thereby increasing the detection area of the detection head. At the same time, through the design of the sealing block to change the internal space size of the second hydraulic oil tank, the sliding length of the detection head can be changed, preventing blind spots during detection and making the detection of the detection head more precise, further improving the accuracy of the detection results inside the power distribution cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the guiding square chute structure of the present invention.

[0025] Figure 3 It is a schematic diagram of the spring structure of the present invention.

[0026] Figure 4 It is of the present invention Figure 3 The enlarged schematic diagram of part A.

[0027] Figure 5 It is of the present invention Figure 3 The enlarged schematic diagram of part B.

[0028] Figure 6 It is a schematic diagram of the sectional view of the mounting block of the present invention.

[0029] Figure 7 It is a schematic diagram of the sectional view of the second hydraulic oil tank of the present invention.

[0030] Figure 8 It is of the present invention Figure 7 The enlarged schematic diagram of part C.

[0031] In the figure: 1, fixed plate; 11, handle; 12, power motor; 13, fixed block; 14, concave and convex slide groove; 15, guide square slide groove; 2, fixed square tube; 21, sliding tube; 22, sliding column; 23, sliding square rod; 24, raised block; 25, first hydraulic oil tank; 26, first sealing rod; 27, oil pipeline; 28, mounting plate; 29, control rod; 210, guide block; 211, sliding column; 212, fixed rod; 213, sliding ball; 3, sliding block; 31, mounting block; 32, spring; 33, sliding groove; 34, detection head; 35, slider; 36, connecting rod; 37, second sealing rod; 38, second hydraulic oil tank; 39, resistance block; 310, sealing block; 311, control block; 312, inclined slide groove; 313, sliding sealing tube; 314, elastic spring; 4, distribution cabinet. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] For example, see Figures 1 - 8 The present invention discloses a fault detection device for a low-voltage power distribution cabinet in operation, comprising a fixed plate 1, a power motor 12 is arranged on one side of the fixed plate 1, a power output end of the power motor 12 passes through the fixed plate 1, a fixed block 13 is fixedly connected to the power output end of the power motor 12, a fixed square tube 2 is fixedly connected to the fixed block 13, a sliding square rod 23 is slidably connected inside the other end of the fixed square tube 2, the power motor 12 is directly connected to the fixed block 13, so that the fixed square tube 2 and the sliding square rod 23 can rotate in a circle around the power output shaft of the power motor 12, a plurality of sliding blocks 3 are slidably connected to the fixed square tube 2 and the sliding square rod 23, and one side of the sliding block 3 A mounting block 31 is fixedly connected, and a spring 32 is arranged between each sliding block 3. The spring 32 is sleeved on the fixed square tube 2 and the sliding square rod 23. A sliding groove 33 is provided on the mounting block 31. A slider 35 is slidably connected in the sliding groove 33. A detection head 34 is fixedly connected to one side of the slider 35. The design of the sliding groove 33 enables the slider 35 to slide smoothly. At the same time, the stable sliding of the slider 35 enables the detection head 34 to be in a relatively stable state for scanning. The detection head 34 is used to detect the operating conditions in the power distribution cabinet 4. The design of multiple detection heads 34 cooperating with each other enables the detection range of the detection head 34 to completely cover the interior of the power distribution cabinet 4.

[0034] One end of the sliding square rod 23 is fixedly connected with a guiding block 210, and one side of the guiding block 210 is fixedly connected with a sliding column 211.

[0035] See Figure 1 , first open the cabinet door of the power distribution cabinet 4, then hold the handle 11 by hand, align the side with the detection head 34 with the inside of the power distribution cabinet 4, then start the power motor 12, drive the fixed block 13 to rotate through the power motor 12, and drive the sliding column 22 to rotate together while the fixed block 13 rotates. At the same time, when the fixed square tube 2 rotates, it drives the sliding square rod 23 to rotate together. When the fixed square tube 2 and the sliding square rod 23 rotate, they can drive the mounting blocks 31 on the fixed square tube 2 and the sliding square rod 23 to rotate together. Through the rotation of the sliding column 22 and the sliding square rod 23, the detection head 34 can be driven to perform a circular motion, so that the detection head 34 can scan and detect the whole inside of the power distribution cabinet 4. It should be noted that through the square design of the fixed square tube 2 and the sliding square rod 23, during the subsequent operation, the position of the sliding block 3 will not shift, and at the same time, the sliding column 211 can always slide in the guiding square chute 15 without shifting.

[0036] In this embodiment: By driving the simultaneous rotation of the fixed square tube 2 and the sliding square rod 23 through the power motor 12, the fixed square tube 2 and the sliding square rod 23 can drive the mounting blocks 31 and the detection head 34 to perform a circular motion. At the same time, with the mutual cooperation of multiple detection heads 34, the detection head 34 can perform a comprehensive detection of the inside of the power distribution cabinet 4 to prevent missed scanning.

[0037] Embodiment 2. The purpose of this embodiment is to facilitate the solution of the problem that the sliding square rod 23 cannot retract inward during the process of driving the detection head 34 to rotate and detecting the inside of the power distribution cabinet 4. Specifically, please refer to Figures 1 - 8 , a guiding square chute 15 is opened on one side of the fixing plate 1. The shape of the guiding square chute 15 is basically the same as that of the power distribution cabinet 4, both are rectangular. The sliding column 211 is slidably connected with the guiding square chute 15. An uneven chute 14 is opened in the middle of the fixing plate 1 on the same side as the guiding square chute 15. A handle 11 for convenient taking is provided on the other side of the fixing plate 1. Through the design of the handle 11, it can facilitate the later use. The handle 11 and the power motor 12 are on the same side;

[0038] When the sliding column 211 slides out from the corner of the guiding square chute 15, the sliding square rod 23 slides into the fixed square tube 2.

[0039] A sliding tube 21 is slidably connected to the fixed square tube 2. The sliding tube 21 is sleeved on the fixed square tube 2. Through such a design, it can prevent the sliding tube 21 from detaching from the fixed square tube 2. At one end of the sliding tube 21 close to the fixed block 13, on one side of the sliding tube 21 close to the fixed plate 1, a sliding column 22 is fixedly connected. The sliding column 22 is slidably connected to the concave-convex sliding groove 14. A protruding block 24 is fixedly connected to the other side of the sliding tube 21. Through such a design, when the sliding column 22 slides in the concave-convex sliding groove 14, it can control the sliding of the sliding tube 21.

[0040] A second hydraulic oil chamber 38 is fixedly arranged inside the mounting block 31. A sliding sealing tube 313 is slidably connected inside the second hydraulic oil chamber 38. A spring 314 is arranged between the second hydraulic oil chamber 38 and the sliding sealing tube 313. A second sealing rod 37 is slidably connected inside the sliding sealing tube 313. Through the design of the sliding connection between the second hydraulic oil chamber 38 and the sliding sealing tube 313, the lengths of the second hydraulic oil chamber 38 and the sliding sealing tube 313 can be changed. At the same time, through the design of the spring 314 between the sliding sealing tube 313 and the second hydraulic oil chamber 38, the second sealing rod 37 first slides inside the sliding sealing tube 313, and then as the hydraulic oil continues to enter, the sliding sealing tube 313 will slide inside the second hydraulic oil chamber 38, causing the spring 314 to deform. At the same time, through the design of the spring 314, the subsequent sliding sealing tube 313 can be reset. One end of the second hydraulic oil chamber 38 is fixedly communicated with the oil delivery pipe 27. A sealing block 310 is slidably connected to one side of the second hydraulic oil chamber 38. The sealing block 310 is used to change the size of the internal space of the second hydraulic oil chamber 38. Through the design of changing the size of the internal space of the second hydraulic oil chamber 38, the amount of hydraulic oil required for the second sealing rod 37 to slide is changed.

[0041] See Figure 2, during the process of the driving motor 12 driving the fixed square tube 2 and the sliding square rod 23 to rotate, it will drive the guiding block 210 at one end of the sliding square rod 23 to rotate together. While the guiding block 210 is doing circular motion, it will cause the sliding column 211 on the guiding block 210 to slide within the guiding square chute 15. When the sliding column 211 is within the guiding square chute 15 and slides from the midpoint of the upper and lower or left and right sides of the guiding square chute 15 towards the corner of the guiding square chute 15, at this time, the sliding square rod 23 slides out of the fixed square tube 2. When the sliding column 211 is within the guiding square chute 15 and slides from the corner of the guiding square chute 15 towards the midpoint of the upper and lower or left and right sides of the guiding square chute 15, at this time, the sliding square rod 23 contracts into the fixed square tube 2, and at this time, the rotation radius becomes shorter. It should be noted that the sliding column 211 slides within the guiding square chute 15, from one corner to another corner. When the sliding column 211 slides to the midpoint, at this time, the sliding square rod 23 slides into the fixed square tube 2. When the sliding column 211 continues to slide from the midpoint towards the corner, the sliding square rod 23 gradually slides out of the fixed square tube 2 again, causing the sliding square rod 23 to slide into the fixed square tube 2, thereby reducing the lengths of the fixed square tube 2 and the sliding square rod 23, so that the lengths of the fixed square tube 2 and the sliding square rod 23 can change according to the shape of the power distribution cabinet 4.

[0042] It should be noted that when the sliding square rod 23 slides into the fixed square tube 2, making the overall length of the fixed square tube 2 and the sliding square rod 23 shorter, through the arrangement of the springs 32 between the sliding blocks 3, the distances between the sliding blocks 3 can be relatively equal. When the sliding square rod 23 contracts into the fixed square tube 2, all the springs 32 are simultaneously compressed, and the forces received by each spring 32 are relatively the same, so as to realize that the distances between the detection heads 34 can be relatively the same. Through such a design, the distances between the scanning positions of the detection heads 34 can be made as equal as possible. Through such a design, the detection heads 34 can follow the length changes of the fixed square tube 2 and the sliding square rod 23 and then change, so as to avoid the situation of detection blind spots during the detection process.

[0043] In this embodiment: through the guiding of the sliding column 211 by the guiding square chute 15, during the rotation of the fixed square tube 2 and the sliding square rod 23, the sliding square rod 23 can be automatically controlled to contract into the fixed square tube 2 according to the shape of the power distribution cabinet 4, so that each detection head 34 can always scan and detect the inside of the power distribution cabinet 4, and there will be no situation where a detection head 34 scans outside the power distribution cabinet 4, so that each detection head 34 can always detect the inside of the power distribution cabinet 4, preventing the occurrence of abnormal detection data;

[0044] Moreover, through the design of the spring 32, when the sliding square rod 23 contracts into the fixed square pipe 2, each sliding block 3 can drive the mounting block 31 to slide on the fixed square pipe 2 or the sliding square rod 23, adjusting the distance between the detection heads 34. At the same time, through the design of the spring 32, when the sliding square rod 23 contracts into the fixed square pipe 2, the springs 32 can be compressed simultaneously. By sharing the pressure by each spring 32, the distance between the sliding blocks 3 can be made relatively equal, enabling the detection heads 34 to cooperate with each other, and further improving the accuracy of the detection results inside the power distribution cabinet 4.

[0045] Embodiment 3. The purpose of this embodiment is to facilitate the solution of the problem that during the process of the fixed square pipe 2 and the sliding square rod 23 driving the detection head 34 to rotate and detect the interior of the power distribution cabinet 4, the detection position of the detection head 34 is fixed and the detection area cannot be increased. This embodiment is an improvement based on Embodiment 2. Specifically, please refer to Figures 1 - 8 One side of the fixed block 13 is fixedly connected to the first hydraulic oil chamber 25. A first sealing rod 26 is slidably connected inside the first hydraulic oil chamber 25. The other end of the first sealing rod 26 is fixedly connected to one side of the protruding block 24. One end of the first hydraulic oil chamber 25 is communicated with an oil delivery pipe 27;

[0046] When the sliding column 22 slides in the groove of the concave-convex sliding groove 14, the first sealing rod 26 squeezes the hydraulic oil in the first hydraulic oil chamber 25.

[0047] One end of the fixed square pipe 2 close to the sliding pipe 21 is fixedly connected to a mounting plate 28. One side of the mounting plate 28 abuts against the spring 32. A control rod 29 is fixedly connected to the mounting plate 28. The mounting plate 28 can provide stable support for the control rod 29. A plurality of fixing rods 212 are fixedly connected to the control rod 29. The other ends of the fixing rods 212 are all fixedly connected to sliding balls 213. The fixing rods 212 and the sliding balls 213 are both located inside the mounting block 31.

[0048] The upper end of the second sealing rod 37 is fixedly connected to a connecting rod 36. The other end of the connecting rod 36 is fixedly connected to the slider 35.

[0049] A resisting block 39 is fixedly connected inside the second hydraulic oil chamber 38. The resisting block 39 abuts against one end of the sealing block 310.

[0050] One side of the sealing block 310 is fixedly connected to a control block 311. An inclined sliding groove 312 is formed inside the control block 311. The inclined sliding groove 312 is slidably connected to the sliding ball 213;

[0051] When the sliding ball 213 slides in the inclined sliding groove 312, the space inside the second hydraulic oil chamber 38 gradually increases.

[0052] While the power motor 12 drives the fixed square tube 2 and the sliding square rod 23 to rotate, it will also drive the sliding tube 21 on the sliding column 22 to rotate together. While the sliding tube 21 rotates, the sliding column 22 on the sliding tube 21 will slide in the concave-convex sliding groove 14, so that during the rotation process, the sliding tube 21 can slide under the guidance of the concave-convex sliding groove 14; see Figure 4 , when the sliding column 22 slides from the convex groove of the concave-convex sliding groove 14 into the concave groove of the concave-convex sliding groove 14, it will cause the sliding tube 21 to slide downward, so that the sliding tube 21 drives the convex block 24 and the first sealing rod 26 to slide downward, and the first sealing rod 26 is squeezed into the interior of the first hydraulic oil tank 25, thereby squeezing the hydraulic oil in the first hydraulic oil tank 25 into the oil delivery pipe 27;

[0053] see Figure 7 , after the hydraulic oil enters the oil delivery pipe 27, it then flows into the second hydraulic oil tank 38, causing the second sealing rod 37 in the second hydraulic oil tank 38 to be lifted by the hydraulic oil. While the second sealing rod 37 is lifted, it drives the connecting rod 36, the slider 35 and the detection head 34 to slide upward together. Due to the restriction of the elastic spring 314 on the sliding sealing tube 313, the second sealing rod 37 will first slide in the sliding sealing tube 313. When the second sealing rod 37 slides to the top of the sliding sealing tube 313, at this time, when more hydraulic oil enters, it will cause the sliding sealing tube 313 to slide upward in the second hydraulic oil tank 38, causing the elastic spring 314 to deform, so that the length of the second hydraulic oil tank 38 and the sliding sealing tube 313 becomes longer, thereby enabling the detection head 34 to slide farther. Through this design, when the distance between the sliding blocks 3 becomes longer, the detection head 34 can slide along with it, thus preventing blind spots during detection; when the sliding column 22 slides into the convex groove of the concave-convex sliding groove 14, through the suction of the hydraulic oil, the detection head 34 is restored to its initial position. Through this design, while the fixed square tube 2 and the sliding square rod 23 drive the detection head 34 to rotate, each detection head 34 can also slide, enabling the detection head 34 to scan and detect the interior of the power distribution cabinet 4 more comprehensively and preventing missed scans.

[0054] It should be noted that, see Figure 8 , when the sliding square rod 23 contracts into the fixed square tube 2, the mounting block 31 will drive the control block 311 to slide downward, causing the sliding ball 213 to slide in the inclined sliding groove 312. Through the inclined design of the inclined sliding groove 312, the control block 311 will slide to the right under the cooperation between the sliding ball 213 and the inclined sliding groove 312, see Figure 7, by controlling the rightward sliding of the control block 311, the sealing block 310 will be driven to slide rightward together. By the rightward sliding of the sealing block 310, the space inside the second hydraulic oil chamber 38 will be increased. Through the design of increasing the space inside the second hydraulic oil chamber 38, the sliding sealing tube 313 will be pushed by the elastic spring 314 to slide into the second hydraulic oil chamber 38, causing the second sealing rod 37 to drive the connecting rod 36, the slider 35, and the detection head 34 to slide a shorter distance.

[0055] In this embodiment: By squeezing the hydraulic oil in the first hydraulic oil chamber 25, the squeezed hydraulic oil can enter the second hydraulic oil chamber 38, thereby driving the detection head 34 to slide. By the sliding of the detection head 34, the detection area of the detection head 34 can be increased; when the sliding column 211 slides from the midpoint between the two corners of the guiding square chute 15, the length of the sliding square rod 23 and the fixed square tube 2 will be gradually increased. At the same time, through the cooperation between the sliding ball 213 and the inclined chute 312, the sealing block 310 will gradually slide into the interior of the second hydraulic oil chamber 38, thereby gradually reducing the space inside the second hydraulic oil chamber 38, causing the sliding sealing tube 313 to gradually slide upward in the second hydraulic oil chamber 38, thereby increasing the sliding height of the detection head 34, enabling each detection head 34 to increase as the distance between each sliding block 3 increases, and further increasing the detection area of the detection head 34 to prevent the problem of blind spots in detection, and further improving the accuracy of the detection results inside the power distribution cabinet 4.

[0056] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0057] The above are only the preferred embodiments of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A fault detection device for a low-voltage power distribution cabinet in operation, comprising a fixing plate, a power motor is arranged on one side of the fixing plate, a power output end of the power motor passes through the fixing plate, and a fixing block is fixedly connected to the power output end of the power motor, characterized in that: A fixed square tube is fixedly connected to the fixed block, a sliding square rod is slidably connected to the other end of the fixed square tube, a plurality of sliding blocks are slidably connected to the fixed square tube and the sliding square rod, a mounting block is fixedly connected to one side of the sliding block, a spring is arranged between each sliding block, the spring is sleeved on the fixed square tube and the sliding square rod, a sliding groove is provided on the mounting block, a slider is slidably connected in the sliding groove, a detection head is fixedly connected to one side of the slider, and the detection head is used to detect the operating status in the power distribution cabinet; One end of the sliding square rod is fixedly connected with a guide block, and one side of the guide block is fixedly connected with a sliding column; A guiding square slide groove is provided on one side of the fixed plate, the slide column is slidably connected with the guiding square slide groove, a concave-convex slide groove is provided in the middle of the fixed plate on the same side of the guiding square slide groove, and a handle for easy picking is provided on the other side of the fixed plate, and the handle and the power motor are located on the same side; When the sliding column slides out from the corner of the guiding square slide groove, the sliding square rod slides into the fixed square tube; A sliding tube is slidably connected to the fixed square tube, one end of the sliding tube is close to the fixed block, a sliding column is fixedly connected to the side of the sliding tube close to the fixed plate, the sliding column is slidably connected to the concave and convex sliding groove, and a convex block is fixedly connected to the other side of the sliding tube; One side of the fixed block is fixedly connected to a first hydraulic oil tank, a first sealing rod is slidably connected in the first hydraulic oil tank, the other end of the first sealing rod is fixedly connected to one side of the raised block, and one end of the first hydraulic oil tank is connected to an oil delivery pipe; When the sliding column slides in the groove of the concave-convex sliding groove, the first sealing rod squeezes the hydraulic oil in the first hydraulic oil tank.

2. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 1, characterized in that: One end of the fixed square tube close to the sliding tube is fixedly connected to a mounting plate, one side of the mounting plate is in contact with the spring, a control rod is fixedly connected to the mounting plate, a plurality of fixed rods are fixedly connected to the control rod, the other ends of the fixed rods are fixedly connected to sliding balls, and the fixed rods and the sliding balls are both located in the mounting block.

3. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 2, characterized in that: A second hydraulic oil tank is fixedly arranged inside the mounting block, a sliding sealing tube is slidably connected inside the second hydraulic oil tank, an elastic spring is arranged between the second hydraulic oil tank and the sliding sealing tube, a second sealing rod is slidably connected inside the sliding sealing tube, one end of the second hydraulic oil tank is fixedly connected to the oil pipeline, a sealing block is slidably connected to one side of the second hydraulic oil tank, and the sealing block is used to change the size of the space inside the second hydraulic oil tank.

4. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 3, characterized in that: The upper end of the second sealing rod is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to the sliding block.

5. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 3, characterized in that: The interior of the second hydraulic oil tank is fixedly connected with a resistance block, and the resistance block resists against one end of the sealing block.

6. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 5, characterized in that: A control block is fixedly connected to one side of the sealing block, an inclined sliding groove is provided inside the control block, and the inclined sliding groove is slidably connected to the sliding ball; When the sliding ball slides from bottom to top in the inclined sliding groove, the space in the second hydraulic oil tank gradually increases.

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