Fault detection equipment for low-voltage power distribution cabinet in operation

Abstract

The invention relates to the technical field of electrical equipment detection, and discloses a fault detection device for a low-voltage power distribution cabinet in operation, which comprises a fixed plate, a power motor is arranged on one side of the fixed plate, the power output end of the power motor penetrates through the fixed plate, and the power output end of the power motor is fixedly connected with a fixed block. A fixing square pipe is fixedly connected to the fixing block, a sliding square rod is slidably connected to the interior of the other end of the fixing square pipe, a plurality of sliding blocks are slidably connected to the fixing square pipe and the sliding square rod, a mounting block is fixedly connected to one side of each sliding block, and springs are arranged between the sliding blocks. And the spring is sleeved on the fixed square tube and the sliding square rod. The fault detection equipment used for the low-voltage power distribution cabinet in operation can scan the interior of the power distribution cabinet in all directions, so that each corner of the interior of the power distribution cabinet can be scanned.

Description

Technical Field

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

[0002] With the development and intelligentization of power systems, real-time monitoring and accurate diagnosis of power equipment status are crucial to ensure the stable operation of power systems and the safety and reliability of equipment. Traditional equipment status monitoring methods often rely on offline manual inspections and periodic maintenance. This method has problems such as large human resource consumption, 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 power equipment status monitoring. As an important technological innovation in the field of power equipment monitoring and diagnosis, low-voltage distribution cabinet fault detection equipment realizes real-time monitoring and control of the operating status of distribution cabinets by integrating advanced sensors, data acquisition, processing analysis, and communication technologies. This equipment can accurately capture key parameters such as voltage, current, and temperature in the 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 equipment for low-voltage distribution cabinets in operation needs to scan the distribution cabinet little by little during the process of detecting faults in the distribution cabinet, which may result in missed scans, thereby causing blind spots in the scanning of the distribution cabinet, leading to faults in the later stage; therefore, it does not meet the existing needs. In this regard, we propose a fault detection equipment for low-voltage distribution cabinets in operation. Summary of the invention

[0004] The present invention provides a fault detection device for a low-voltage distribution cabinet in operation, which can perform an all-round scan on the interior of the distribution cabinet so that every corner inside the distribution cabinet can be scanned, thereby solving the problem mentioned in the above background technology that in the process of detecting faults in the distribution cabinet, the distribution cabinet needs to be scanned little by little, which may result in missed scans, thereby causing blind spots in the scanning of the distribution cabinet, leading to faults in the later stage.

[0005] The present invention provides the following technical solution: a fault detection device for a low-voltage power distribution cabinet in operation, comprising a fixed plate, a power motor is arranged on one side of the fixed plate, a power output end of the power motor passes through the fixed plate, a fixed block is fixedly connected to the power output end of the power motor, 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 of the sliding blocks, the spring is sleeved on the fixed square tube and the sliding square rod, a sliding groove is opened on the mounting block, a sliding block 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.

[0006] As an optional solution of a fault detection device for a low-voltage power distribution cabinet in operation described in the present invention, wherein: a guiding square slide groove is provided on one side of the fixed plate, the sliding column is slidably connected to the guiding square slide groove, a concave-convex slide groove is provided on the same side of the guiding square slide groove and located in the middle of the fixed plate, and a handle for convenient picking is provided on the other side of the fixed plate, and the handle is located on the same side as the power motor; When the sliding column slides out from the corner of the guiding square sliding groove, the sliding square rod slides into the fixed square tube.

[0007] As an optional scheme for a fault detection device for a low-voltage distribution cabinet in operation described in the present invention, a sliding tube is slidably connected to the fixed square tube, one end of the sliding tube is close to the fixed block, a side of the sliding tube close to the fixed plate is fixedly connected to a sliding column, the sliding column is slidably connected to the concave and convex grooves, and a raised block is fixedly connected to the other side of the sliding tube.

[0008] As an optional solution of a fault detection device for a low-voltage power distribution cabinet in operation according to the present invention, wherein: a first hydraulic oil tank is fixedly connected to one side of the fixed block, 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.

[0009] As an optional scheme for a fault detection device for a low-voltage distribution cabinet in operation described in the present invention, wherein: 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.

[0010] As an optional scheme for a fault detection device for a low-voltage distribution cabinet in operation described in the present invention, wherein: 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.

[0011] As an optional solution of a fault detection device for a low-voltage power distribution cabinet in operation described in the present invention, 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.

[0012] As an optional solution of a fault detection device for a low-voltage power distribution cabinet in operation described in the present invention, a resistance block is fixedly connected to the interior of the second hydraulic oil tank, and the resistance block resists against one end of the sealing block.

[0013] As an optional solution of a fault detection device for a low-voltage power distribution cabinet in operation according to the present invention, wherein: a control block is fixedly connected to one side of the sealing block, an inclined slide groove is provided inside the control block, and the inclined slide 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.

[0014] The present invention has the following beneficial effects: 1. This fault detection equipment for low-voltage distribution cabinets in operation drives the fixed square tube and the sliding square rod to rotate in a circle around the periphery of the distribution cabinet through a power motor. At the same time, through the design of multiple detection heads, the detection heads can scan and detect the entire interior of the distribution cabinet, which can prevent missed scanning and make the detection results more accurate.

[0015] 2. The fault detection device for the low-voltage power distribution cabinet in operation is designed with a sliding connection between the sliding square rod and the fixed square tube, so that the fixed square tube and the sliding square rod can be extended and retracted according to the shape of the power distribution cabinet, so that the detection head can always scan the inside of the power distribution cabinet; Moreover, through the design of the spring, when the fixed square tube and the sliding square rod are contracted, the distance between each detection head can always be in a relatively equal state, so that the detection heads can cooperate with each other, further improving the accuracy of the detection results in the distribution cabinet.

[0016] 3. The fault detection device for the low-voltage distribution cabinet in operation enables the detection head to slide through the cooperation between the first hydraulic oil tank and the second hydraulic oil tank, thereby increasing the detection area of ​​the detection head. At the same time, the design of changing the size of the internal space of the second hydraulic oil tank through the sealing block allows the sliding length of the detection head to be changed, thereby preventing blind spots from occurring during detection, making the detection of the detection head more accurate, and further improving the accuracy of the detection results in the distribution cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the guiding square chute structure of the present invention.

[0019] Figure 3 It is a schematic diagram of the spring structure of the present invention.

[0020] Figure 4 For the present invention Figure 3 Enlarged structural diagram at A in the middle.

[0021] Figure 5 For the present invention Figure 3 Enlarged structural diagram at B in the middle.

[0022] Figure 6 It is a schematic diagram of the cross-sectional structure of the mounting block of the present invention.

[0023] Figure 7 It is a schematic cross-sectional structural diagram of the second hydraulic oil tank of the present invention.

[0024] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C in the middle.

[0025] 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

[0026] 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.

[0027] For example, see Figure 1-Figure 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. One end of the sliding square rod 23 is fixedly connected to a guide block 210 , and one side of the guide block 210 is fixedly connected to a sliding column 211 .

[0028] See Figure 1 , first open the door of the distribution cabinet 4, then hold the handle 11 with your hand, align the side with the detection head 34 with the inside of the distribution cabinet 4, then start the power motor 12, and drive the fixed block 13 to rotate through the power motor 12. While the fixed block 13 rotates, the sliding column 22 is driven to rotate together. At the same time, the fixed square tube 2 is driven to rotate together during the rotation of the sliding square rod 23. While the fixed square tube 2 and the sliding square rod 23 are rotating, the mounting block 31 on the fixed square tube 2 and the sliding square rod 23 can be driven 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 entire inside of the distribution cabinet 4. It should be noted that through the square design of the fixed square tube 2 and the sliding square rod 23, the position of the sliding block 3 will not be offset during the subsequent operation, and the sliding column 211 can always slide in the guiding square slide groove 15 without offset.

[0029] In the present embodiment: the fixed square tube 2 and the sliding square rod 23 are driven to rotate simultaneously by the power motor 12, so that the fixed square tube 2 and the sliding square rod 23 can drive the mounting block 31 and the detection head 34 to perform circular motion. At the same time, with the mutual cooperation of multiple detection heads 34, the detection head 34 can perform a full-scale detection of the interior of the distribution cabinet 4 to prevent missed scanning.

[0030] Embodiment 2: This embodiment is intended to promote the solution of the problem that the sliding square rod 23 cannot retract inwards during the process of driving the detection head 34 to rotate and detect the inside of the power distribution cabinet 4. For details, please refer to Figure 1-Figure 8 A guiding square slide groove 15 is provided on one side of the fixed plate 1. The shape of the guiding square slide groove 15 is basically the same as that of the power distribution cabinet 4, both of which are rectangular. The slide column 211 is slidably connected with the guiding square slide groove 15. A concave-convex slide groove 14 is provided on the same side of the guiding square slide groove 15 in the middle of the fixed plate 1. A handle 11 for easy picking is provided on the other side of the fixed plate 1. The design of the handle 11 can facilitate later use. The handle 11 and the power motor 12 are located on the same side; When the sliding column 211 slides out from the corner of the guiding square sliding groove 15 , the sliding square rod 23 slides into the fixed square tube 2 .

[0031] A sliding tube 21 is slidably connected to the fixed square tube 2, and the sliding tube 21 is sleeved on the fixed square tube 2. Through such a design, the sliding tube 21 can be prevented from detaching from the fixed square tube 2. One end of the sliding tube 21 is close to the fixed block 13, and a side of the sliding tube 21 close to the fixed plate 1 is fixedly connected with a sliding column 22. The sliding column 22 is slidably connected to the concave-convex groove 14, and a convex 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 groove 14, the sliding tube 21 can be controlled to slide.

[0032] The second hydraulic oil tank 38 is fixedly arranged inside the mounting block 31, and the sliding sealing tube 313 is slidably connected inside the second hydraulic oil tank 38. An elastic spring 314 is arranged between the second hydraulic oil tank 38 and the sliding sealing tube 313, and the second sealing rod 37 is slidably connected inside the sliding sealing tube 313. The sliding design of the second hydraulic oil tank 38 and the sliding sealing tube 313 allows the lengths of the second hydraulic oil tank 38 and the sliding sealing tube 313 to be changed. At the same time, the design of the elastic spring 314 between the sliding sealing tube 313 and the second hydraulic oil tank 38 allows the second sealing rod 37 to be firstly arranged in the sliding sealing tube 313. After the internal sliding, as the hydraulic oil continues to enter, the sliding sealing tube 313 will slide in the second hydraulic oil tank 38, causing the elastic spring 314 to deform. At the same time, through the design of the elastic spring 314, the subsequent sliding sealing tube 313 can also be reset. One end of the second hydraulic oil tank 38 is fixedly connected to the oil pipe 27, and one side of the second hydraulic oil tank 38 is slidably connected with a sealing block 310. The sealing block 310 is used to change the size of the internal space of the second hydraulic oil tank 38. By changing the design of the size of the internal space of the second hydraulic oil tank 38, the amount of hydraulic oil required for the sliding of the second sealing rod 37 can be changed.

[0033] See Figure 2In the process of driving the fixed square tube 2 and the sliding square rod 23 to rotate, the power motor 12 will drive the guide block 210 at one end of the sliding square rod 23 to rotate together. While the guide block 210 is making a circular motion, the slide column 211 on the guide block 210 will slide in the guide square slide groove 15. When the slide column 211 slides in the guide square slide groove 15 from the middle point of the upper and lower or left and right sides of the guide square slide groove 15 to the corner of the guide square slide groove 15, the sliding square rod 23 slides out of the fixed square tube 2. When the slide column 211 is in the guide square slide groove 15, it slides from the middle point of the upper and lower or left and right sides of the guide square slide groove 15 to the upper and lower or left and right sides of the guide square slide groove 15. When the middle points on both sides slide, the sliding square rod 23 shrinks into the fixed square tube 2, and the rotation radius becomes shorter. It should be noted that the sliding column 211 slides in the guiding square slide groove 15, sliding from one corner to another. When the sliding column 211 slides to the middle point, the sliding square rod 23 slides into the fixed square tube 2. When the sliding column 211 continues to slide from the middle point to the corner, the sliding square rod 23 gradually slides out of the fixed square tube 2, so that the sliding square rod 23 slides into the fixed square tube 2, thereby reducing the length of the fixed square tube 2 and the sliding square rod 23, so that the length of the fixed square tube 2 and the sliding square rod 23 can be changed with the shape of the distribution cabinet 4.

[0034] It should be noted that when the sliding square rod 23 slides into the fixed square tube 2, making the fixed square tube 2 and the sliding square rod 23 shorter as a whole, the springs 32 between the sliding blocks 3 are set so that the spacing between the sliding blocks 3 can be relatively equal. When the sliding square rod 23 contracts into the fixed square tube 2, the springs 32 are squeezed at the same time, so that the force exerted on each spring 32 is relatively the same, thereby achieving relatively the same spacing between the detection heads 34. Through such a design, the distances between the scanning positions of the detection heads 34 can be as similar as possible. Through such a design, the detection heads 34 can follow the changes in the length of the fixed square tube 2 and the sliding square rod 23, and then change, thereby avoiding the occurrence of detection blind spots during the detection process.

[0035] In this embodiment: by guiding the sliding column 211 through the guiding square slide 15, the fixed square tube 2 and the sliding square rod 23 can automatically control the sliding square rod 23 to retract into the fixed square tube 2 according to the shape of the power distribution cabinet 4 during the rotation process, 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 the 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; Moreover, through the design of the spring 32, when the sliding square rod 23 is retracted into the fixed square tube 2, each sliding block 3 can drive the mounting block 31 to slide on the fixed square tube 2 or the sliding square rod 23, thereby adjusting the distance between each detection head 34. At the same time, through the design of the spring 32, when the sliding square rod 23 is retracted into the fixed square tube 2, each spring 32 can be squeezed at the same time, and the pressure is shared by each spring 32 at the same time, so that the distance between each sliding block 3 is relatively equal, so that the detection heads 34 can cooperate with each other, and the accuracy of the detection results in the distribution cabinet 4 is further improved.

[0036] Embodiment 3: This embodiment is intended to promote the solution of the problem that the fixed square tube 2 and the sliding square rod 23 drive the detection head 34 to rotate and detect the inside of the power distribution cabinet 4, but the detection position of the detection head 34 is fixed and the detection area cannot be increased. This embodiment is an improvement made on the basis of embodiment 2. For details, please refer to Figure 1-Figure 8 A first hydraulic oil tank 25 is fixedly connected to one side of the fixed block 13, a first sealing rod 26 is slidably connected in the first hydraulic oil tank 25, the other end of the first sealing rod 26 is fixedly connected to one side of the raised block 24, and one end of the first hydraulic oil tank 25 is connected to an oil delivery pipe 27; 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 tank 25 .

[0037] One end of the fixed square tube 2 close to the sliding tube 21 is fixedly connected to a mounting plate 28, one side of the mounting plate 28 is in contact with 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 fixed rods 212 are fixedly connected to the control rod 29, the other ends of the fixed rods 212 are fixedly connected to sliding balls 213, the fixed rods 212 and the sliding balls 213 are both located in the mounting block 31.

[0038] The upper end of the second sealing rod 37 is fixedly connected to a connecting rod 36 , and the other end of the connecting rod 36 is fixedly connected to the sliding block 35 .

[0039] A resisting block 39 is fixedly connected to the interior of the second hydraulic oil tank 38 , and the resisting block 39 resists against one end of the sealing block 310 .

[0040] A control block 311 is fixedly connected to one side of the sealing block 310. An inclined sliding groove 312 is provided inside the control block 311. The inclined sliding groove 312 is slidably connected to the sliding ball 213. When the sliding ball 213 slides in the inclined sliding groove 312 , the space in the second hydraulic oil tank 38 gradually increases.

[0041] The power motor 12 drives the fixed square tube 2 and the sliding square rod 23 to rotate, and at the same time, drives the sliding tube 21 on the sliding column 22 to rotate together. When the sliding tube 21 rotates, the sliding column 22 on the sliding tube 21 slides in the concave-convex slide groove 14, so that during the rotation process, the sliding tube 21 can slide under the guidance of the concave-convex slide groove 14; see Figure 4 When the sliding column 22 slides from the raised groove of the concave-convex groove 14 into the groove of the concave-convex groove 14, the sliding tube 21 slides downward, so that the sliding tube 21 drives the raised block 24 and the first sealing rod 26 to slide downward, so that the first sealing rod 26 is pressed into the inside 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; See Figure 7 After the hydraulic oil enters the oil delivery pipe 27, it flows into the second hydraulic oil tank 38, so that the second sealing rod 37 in the second hydraulic oil tank 38 is lifted up by the hydraulic oil. When the second sealing rod 37 is lifted up, it drives the connecting rod 36, the slider 35 and the detection head 34 to slide upward together. The elastic spring 314 restricts the sliding sealing tube 313, which makes the second sealing rod 37 slide in the sliding sealing tube 313 first. When the second sealing rod 37 slides to the top of the sliding sealing tube 313, the hydraulic oil continues to enter, which makes the sliding sealing tube 313 slide upward in the second hydraulic oil tank 38, causing the elastic spring 314 to deform, so that the second hydraulic oil tank 38 and the length of the sliding sealing tube 313 become longer, so that the detection head 34 can slide farther. Through such a design, when the spacing between the sliding blocks 3 becomes longer, the detection head 34 can slide together, thereby preventing blind spots during detection; when the sliding column 22 slides into the convex groove of the concave-convex slide groove 14, the detection head 34 is restored to its initial position by sucking the hydraulic oil. Through such a 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, so that the detection head 34 can scan and detect the inside of the distribution cabinet 4 more comprehensively to prevent missed scanning.

[0042] It should be noted that see Figure 8 When the sliding square rod 23 is retracted 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 slot 312. Through the inclined design of the inclined slot 312, the control block 311 will slide to the right under the cooperation between the sliding ball 213 and the inclined slot 312. Figure 7By sliding the control block 311 to the right, the sealing block 310 will be driven to slide to the right. By sliding the sealing block 310 to the right, the space inside the second hydraulic oil tank 38 will be increased. By increasing the internal space of the second hydraulic oil tank 38, the sliding sealing tube 313 is pushed to slide into the second hydraulic oil tank 38 under the action of the elastic spring 314, so that the second sealing rod 37 drives the connecting rod 36, the slider 35 and the detection head 34 to slide. The distance that can be shortened.

[0043] In this embodiment: by squeezing the hydraulic oil in the first hydraulic oil tank 25, the squeezed hydraulic oil can enter the second hydraulic oil tank 38, thereby driving the detection head 34 to slide. Through 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 middle point of the two corners of the guiding square slide groove 15, the length of the sliding square rod 23 and the fixed square tube 2 will gradually increase. At the same time, through the cooperation between the sliding ball 213 and the inclined slide groove 312, the sealing block 310 gradually slides into the inside of the second hydraulic oil tank 38, thereby gradually reducing the space inside the second hydraulic oil tank 38, so that the sliding sealing tube 313 gradually slides upward in the second hydraulic oil tank 38, thereby increasing the sliding height of the detection head 34, so that each detection head 34 can increase as the spacing between each sliding block 3 increases, thereby increasing the detection area of ​​the detection head 34, preventing the problem of blind spots in detection, and further improving the accuracy of the detection results in the distribution cabinet 4.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A fault detection device for a low-voltage power distribution cabinet in operation, comprising a fixing plate (1), a power motor (12) being arranged on one side of the fixing plate (1), a power output end of the power motor (12) passing through the fixing plate (1), and a fixing block (13) being fixedly connected to the power output end of the power motor (12), characterized in that: The fixed block (13) is fixedly connected to a fixed square tube (2), the other end of the fixed square tube (2) is slidably connected to a sliding square rod (23), a plurality of sliding blocks (3) are slidably connected to the fixed square tube (2) and the sliding square rod (23), one side of the sliding block (3) is fixedly connected to a mounting block (31), a spring (32) is arranged between each of the sliding blocks (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 sliding block (35) is slidably connected in the sliding groove (33), a detection head (34) is fixedly connected to one side of the sliding block (35), and the detection head (34) is used to detect the operating status in the power distribution cabinet (4); One end of the sliding square rod (23) is fixedly connected to a guide block (210), and one side of the guide block (210) is fixedly connected to a sliding column (211).

2. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 1, characterized in that: A guiding square slide groove (15) is provided on one side of the fixing plate (1), the sliding column (211) is slidably connected to the guiding square slide groove (15), a concave-convex slide groove (14) is provided in the middle of the fixing plate (1) on the same side of the guiding square slide groove (15), and a handle (11) for easy picking is provided on the other side of the fixing plate (1), and the handle (11) and the power motor (12) are located on the same side; When the sliding column (211) slides out from the corner of the guiding square sliding groove (15), the sliding square rod (23) slides into the fixed square tube (2).

3. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 2, characterized in that: A sliding tube (21) is slidably connected to the fixed square tube (2); one end of the sliding tube (21) is close to the fixed block (13); a side of the sliding tube (21) close to the fixed plate (1) is fixedly connected to a sliding column (22); the sliding column (22) is slidably connected to the concave-convex sliding groove (14); and the other side of the sliding tube (21) is fixedly connected to a raised block (24).

4. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 3, characterized in that: A first hydraulic oil tank (25) is fixedly connected to one side of the fixed block (13); a first sealing rod (26) is slidably connected inside the first hydraulic oil tank (25); the other end of the first sealing rod (26) is fixedly connected to one side of the raised block (24); and one end of the first hydraulic oil tank (25) is connected to an oil delivery pipe (27); 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 tank (25).

5. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 4, characterized in that: One end of the fixed square tube (2) close to the sliding tube (21) is fixedly connected to a mounting plate (28), one side of the mounting plate (28) contacts the spring (32), a control rod (29) is fixedly connected to the mounting plate (28), a plurality of fixed rods (212) are fixedly connected to the control rod (29), the other ends of the fixed rods (212) are fixedly connected to sliding balls (213), and the fixed rods (212) and the sliding balls (213) are both located in the mounting block (31).

6. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 5, characterized in that: A second hydraulic oil tank (38) is fixedly arranged inside the mounting block (31), a sliding sealing tube (313) is slidably connected inside the second hydraulic oil tank (38), an elastic spring (314) is arranged between the second hydraulic oil tank (38) and the sliding sealing tube (313), a second sealing rod (37) is slidably connected inside the sliding sealing tube (313), one end of the second hydraulic oil tank (38) is fixedly connected to the oil delivery pipe (27), and a sealing block (310) is slidably connected to one side of the second hydraulic oil tank (38), and the sealing block (310) is used to change the size of the space inside the second hydraulic oil tank (38).

7. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 6, characterized in that: The upper end of the second sealing rod (37) is fixedly connected to a connecting rod (36), and the other end of the connecting rod (36) is fixedly connected to the sliding block (35).

8. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 6, characterized in that: A resistance block (39) is fixedly connected to the interior of the second hydraulic oil tank (38), and the resistance block (39) is in resistance with one end of the sealing block (310).

9. A fault detection device for a low-voltage power distribution cabinet in operation according to claim 8, characterized in that: A control block (311) is fixedly connected to one side of the sealing block (310), an inclined sliding groove (312) is provided inside the control block (311), and the inclined sliding groove (312) is slidably connected to the sliding ball (213); When the sliding ball (213) slides from bottom to top in the inclined sliding groove (312), the space in the second hydraulic oil tank (38) gradually increases.

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