A kind of abnormality detection device of transformer area line loss

By using cleaning and warning components driven by servo motors, the problems of inconvenient judgment of metal contact plate oxidation and wire harness breakage are solved, achieving high efficiency, reliability and rapid alarm for transformer area line loss detection.

CN120669056BActive Publication Date: 2026-07-31STATE GRID HENAN ELECTRIC POWER CO MIANCHI COUNTY POWER SUPPLY CO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
STATE GRID HENAN ELECTRIC POWER CO MIANCHI COUNTY POWER SUPPLY CO
Filing Date
2025-07-21
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The existing transformer substation line loss detection devices have metal contact plates that are prone to oxidation and make it difficult to detect abnormal wire harness breakage, making them inconvenient to use.

Method used

The cleaning and warning components are driven by servo motors. They remove the oxide layer on the metal contact plate through reciprocating motion and use the thermal deformation characteristics of the bimetallic strip to achieve a rapid alarm for wire harness breakage.

Benefits of technology

It effectively prevents dust interference, improves detection reliability, and enables rapid and reliable anomaly alarms.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention discloses a transformer substation line loss anomaly detection device, comprising a housing with openings on both ends of the outer wall. A first guide rod is fixedly connected between the inner walls on both sides of the housing, and two symmetrically arranged sliding blocks are slidably fitted on the first guide rod. This invention utilizes a single servo motor rotating forward to suck and compress dust from the positioning box and the surface of the wiring harness into a second collection box, effectively preventing dust interference and improving the reliability of subsequent detection. Simultaneously, it enables the rotating drum and brush to rotate and reciprocate back and forth, removing oxide layer debris from the metal contact plate and using this motion to suck and press the debris into the first collection box. Furthermore, it utilizes the physical thermal deformation characteristics of a bimetallic strip; when the wiring harness breaks and current flows through its branch, the strip bends due to heat, pushing the first and second electrical contacts into contact, thereby triggering the servo motor to reverse, causing the sound-emitting block to strike at high speed and emit a warning sound, achieving rapid and reliable anomaly alarm.
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Description

Technical Field

[0001] This invention relates to the field of transformer substation line loss detection technology, and in particular to a transformer substation line loss anomaly detection device. Background Technology

[0002] Transformer line loss detection devices are key equipment in power systems used to locate abnormal power loss. Their core function is to determine whether there are breaks, poor contacts, or electricity theft in the line by connecting the line harness to be tested and detecting the resistance value.

[0003] To address this, Chinese Patent No. CN215005522U proposes a type of transformer area line loss detection device, which can clamp the wire harness through a positioning cover plate and then complete the connection of the wire harness through the contact of metal contact plates in two contact components. However, when using this device, the metal contact plates are prone to forming an oxide layer after contact, which needs to be cleaned to ensure the detection effect. At the same time, it is difficult to determine whether the wire harness is abnormally broken, making it inconvenient to use. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a device for detecting abnormal line loss in transformer substations.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A transformer substation line loss anomaly detection device includes a housing with openings on both outer walls. A first guide rod is fixedly connected between the inner walls of the two sides of the housing. Two symmetrically arranged sliding blocks are slidably mounted on the first guide rod. Hydraulic cylinders are fixedly installed on the inner walls of the two sides of the housing, with their telescopic ends fixedly connected to the two sliding blocks. Metal contact plates are provided on the side walls of the two sliding blocks that are close to each other. Positioning boxes are provided on the two sliding blocks. Multiple sets of bases are provided inside the two positioning boxes. Two telescopic rods are fixedly installed on the inner top of the two positioning boxes. A common positioning cover plate is fixedly connected to the telescopic ends of the two telescopic rods located in the same positioning box. A second spring is fixedly connected between the two positioning cover plates and the inner bottom of the positioning box. A guide block with an isosceles trapezoidal vertical cross-section is fixedly installed on the inner top of the housing. A first cleaning component is provided on the housing. A second cleaning component connected to the first cleaning component is provided on the housing. A warning component connected to the first cleaning component is provided on the housing.

[0006] Preferably, the first cleaning component includes a protective cover fixedly installed on one outer wall of the housing. A servo motor located inside the protective cover is fixedly installed on the outer wall of the housing. A rotating shaft is fixedly connected to the output end of the servo motor. A first gear is fixedly installed on the outer wall of the rotating shaft. A cylinder is fixedly installed on one inner wall of the protective cover. A connecting rod slidably connected to the cylinder is disposed through the outer wall of the cylinder near the first gear. A second piston is fixedly installed at one end of the connecting rod inside the cylinder and slidably connected to the inner wall of the cylinder. The second piston is connected to the inner wall of the cylinder near the first gear. A fourth spring is fixedly connected between the connecting rod and the servo motor. A first rotating rod is provided on the side of the connecting rod near the servo motor. A second rotating rod is rotatably connected to the side of the first gear near the first rotating rod. A fourth connecting pipe and two first connecting pipes are provided on the cylinder body and communicate with its interior. The ends of the fourth connecting pipe and the two first connecting pipes that communicate with the cylinder body are located on the side of the second piston away from the connecting rod. The ends of the two first connecting pipes that are away from the cylinder body extend into two positioning boxes. A second collection box is provided on the protective cover. The end of the fourth connecting pipe that is away from the cylinder body extends into the second collection box.

[0007] Preferably, the second cleaning component includes a reciprocating screw that is rotatably connected to and extends through one side of the outer wall of the housing. A one-way bearing is provided on the outer wall of the reciprocating screw. A second gear that meshes with the first gear is fixedly installed on the outer ring of the one-way bearing. An active block that is threadedly connected to the reciprocating screw is provided on the outer wall of the reciprocating screw. Two second guide rods that are slidably connected to the outer wall of the housing are provided through the reciprocating screw. One end of each of the two second guide rods, located inside a protective cover, is connected to the active block. The other end of each of the two second guide rods is fixedly installed with the same passive block located inside the housing. A rotating cylinder that is rotatably connected to the passive block is provided through the passive block. A plurality of bristles that are evenly distributed are provided on the outer wall of the rotating cylinder.

[0008] Preferably, a first piston is slidably connected to the inner wall of the rotating drum, one end of the reciprocating screw passes through one side of the outer wall of the rotating drum and is fixedly connected to the first piston, the reciprocating screw is rotatably connected to the rotating drum, a first collection box is provided on the outer wall of the rotating drum, and a second connecting pipe and a third connecting pipe are provided on the rotating drum and communicate with its interior. The ends of the second connecting pipe and the third connecting pipe that communicate with the rotating drum are both located on the side of the first piston away from the reciprocating screw, and the end of the second connecting pipe away from the rotating drum is connected to the first collection box.

[0009] Preferably, the warning component includes a mounting box disposed on the inner wall of the other side of the housing. A bimetallic strip is disposed inside the mounting box. Two first springs are fixedly installed on the inner top of the mounting box. One end of each of the two first springs is fixedly connected to a second electrical contact block located above the bimetallic strip. A first electrical contact block is disposed on the inner top of the mounting box. A movable groove located outside the cylinder is opened on the connecting rod. A third guide rod is fixedly connected between the inner walls of the two ends of the movable groove. A sound-emitting block adapted to the movable groove is slidably fitted on the outer wall of the third guide rod. A third spring is fixedly connected between the sound-emitting block, which is rotatably connected to the first rotating rod, and the inner wall of the movable groove near the cylinder.

[0010] Preferably, a one-way valve is provided in the second connecting pipe, the third connecting pipe, the fourth connecting pipe and the two first connecting pipes.

[0011] Preferably, the reciprocating lead screw is fixedly connected to the inner ring of the one-way bearing, and both the connecting rod and the first piston are rectangular in shape.

[0012] Preferably, the bimetallic strip is connected in parallel with two metal contact plates, and both the first and second electrical contacts are located in the circuit of the servo motor.

[0013] The beneficial effects of this invention are: When the servo motor drives the first gear in a forward rotation, it pushes the second piston to reciprocate within the cylinder via the second rotating rod. This allows the dust on the positioning box and wire harness surface to be sucked and compressed into the second collection box, preventing excessive dust from causing abnormal power supply and improving subsequent testing results.

[0014] When the servo motor rotates forward, it drives the first gear to rotate the drum and brush simultaneously and move back and forth, thereby cleaning the oxide layer on the metal contact plate. The back and forth cleaning action of the drum and brush also draws and presses the cleaned debris into the first collection box.

[0015] The circuit can be switched on and off by utilizing the physical deformation characteristics of the bimetallic strip. When the wire harness breaks and current flows through the bimetallic strip branch, it is heated and bent, pushing the second electrical contact to contact the first electrical contact, triggering the servo motor to reverse instantly, which in turn drives the sound-emitting block to strike the end wall of the moving slot at high speed, thus warning of abnormality.

[0016] This invention uses a single servo motor to rotate forward, causing the second piston to reciprocate within the cylinder. This draws in and compresses dust from the positioning box and wire harness surface into the second collection box, effectively preventing dust interference and improving the reliability of subsequent testing. On the other hand, it enables the rotating cylinder and brush to rotate and reciprocate simultaneously, removing oxide layer debris from the metal contact plate. The movement of the brush draws in and presses the debris into the first collection box. Furthermore, it utilizes the physical thermal deformation characteristics of the bimetallic strip. When the wire harness breaks and current flows through its branch, the strip bends due to heat, pushing the first and second electrical contacts into contact. This triggers the servo motor to reverse, causing the sound-emitting block to strike at high speed and emit a warning sound, thus achieving a fast and reliable alarm for abnormalities. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a transformer substation line loss anomaly detection device proposed in this invention; Figure 2 This is a three-dimensional structural diagram of a transformer area line loss anomaly detection device proposed in this invention, cut along the centerline. Figure 3 Appendix to this invention Figure 2 Enlarged structural diagram at point A; Figure 4 This is a three-dimensional structural diagram of the present invention cut along the centerline of the positioning box; Figure 5 This is a three-dimensional structural diagram of the present invention after being cut along the center line of the protective cover; Figure 6 This is a three-dimensional structural diagram of the present invention after being cut along the centerline of the cylinder.

[0018] In the diagram: 1. Housing, 2. Base, 3. First connecting pipe, 4. Protective cover, 5. Opening, 6. Guide block, 7. Positioning cover plate, 8. Metal contact plate, 9. Hydraulic cylinder, 10. First guide rod, 11. Sliding block, 12. Guide roller, 13. Positioning box, 14. Mounting box, 15. First electrical contact, 16. First spring, 17. Second electrical contact, 18. Bimetallic strip, 19. Telescopic rod, 20. Second spring, 21. Servo motor, 22. Rotary shaft, 23. First gear, 24. Second gear, 25. One-way... Bearing, 26. Active block, 27. Second guide rod, 28. Reciprocating screw, 29. Passive block, 30. Brush bristles, 31. Rotary cylinder, 32. First piston, 33. Second connecting pipe, 34. Third connecting pipe, 35. First collection box, 36. First rotating rod, 37. Second rotating rod, 38. Sound-generating block, 39. Fourth connecting pipe, 40. Moving groove, 41. Third spring, 42. Third guide rod, 43. Cylinder, 44. Second piston, 45. Connecting rod, 46. Fourth spring, 47. Second collection box. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] Reference Figures 1-6 A transformer substation line loss anomaly detection device includes a housing 1. Openings 5 ​​are provided on the outer walls at both ends of the housing 1. A first guide rod 10 is fixedly connected between the inner walls of the two sides of the housing 1. Two symmetrically arranged sliding blocks 11 are slidably mounted on the first guide rod 10. Hydraulic cylinders 9 are fixedly installed on the inner walls of both sides of the housing 1. The telescopic ends of the two hydraulic cylinders 9 are respectively fixedly connected to the two sliding blocks 11. A metal contact plate 8 is provided on the side wall of the two sliding blocks 11 that are close to each other. A positioning box 13 is provided on each of the two sliding blocks 11. Multiple sets of bases 2 are provided inside each of the two positioning boxes 13. Two telescopic rods 19 are fixedly installed on the inner top of each of the two positioning boxes 13. The telescopic ends of the two telescopic rods 19 located in the same positioning box 13 are fixedly connected to the same positioning cover plate 7. A second spring 20 is fixedly connected between the two positioning cover plates 7 and the inner bottom of the positioning box 13. A guide block 6 is fixedly installed on the inner top of the box 1. The vertical cross-section of the guide block 6 is an isosceles trapezoidal shape. A first cleaning component is provided on the box 1. The first cleaning component includes a protective cover 4 fixedly installed on one side of the outer wall of the box 1. A servo motor located inside the protective cover 4 is fixedly installed on one side of the outer wall of the box 1. The output end of the servo motor 21 is fixedly connected to a rotating shaft 22. A first gear 23 is fixedly installed on the outer wall of the rotating shaft 22. A cylinder 43 is fixedly installed on one inner wall of the protective cover 4. A connecting rod 45 is slidably connected to the outer wall of the cylinder 43 near the first gear 23. A second piston 44 is fixedly installed at one end of the connecting rod 45 inside the cylinder 43 and slidably connected to the inner wall of the cylinder 43. A fourth spring 46 is fixedly connected between the second piston 44 and the inner wall of the cylinder 43 near the first gear 23. A connecting rod 45 is provided on the side near the servo motor 21. A first rotating rod 36 is provided, and a second rotating rod 37 is rotatably connected to the side of the first rotating rod 36 near the first rotating rod 36. A fourth connecting pipe 39 and two first connecting pipes 3 are provided on the cylinder 43 and communicate with its interior. The ends of the fourth connecting pipe 39 and the two first connecting pipes 3 that are connected to the cylinder 43 are located on the side of the second piston 44 away from the connecting rod 45. The ends of the two first connecting pipes 3 away from the cylinder 43 extend into the two positioning boxes 13. A second collection box 47 is provided on the protective cover 4, and the end of the fourth connecting pipe 39 away from the cylinder 43 extends into the second collection box 47.

[0021] A second cleaning component connected to the first cleaning component is provided on the housing 1. The second cleaning component includes a reciprocating screw 28 that passes through and is rotatably connected to one side of the outer wall of the housing 1. A one-way bearing 25 is provided on the outer wall of the reciprocating screw 28. A second gear 24 that meshes with the first gear 23 is fixedly installed on the outer ring of the one-way bearing 25. An active block 26 that is threadedly connected to the reciprocating screw 28 is provided on the outer wall of the reciprocating screw 28. Two second guide rods 27 that are slidably connected to one side of the outer wall of the housing 1 are provided through the reciprocating screw 28. One end of each of the two second guide rods 27 located inside the protective cover 4 is connected to the active block 26. The other end of each of the two second guide rods 27 is fixedly installed with the same passive block 29 located inside the housing 1. A rotating cylinder 31 that is rotatably connected to the passive block 29 is provided through the passive block 29. A plurality of bristles 30 that are evenly distributed on the outer wall of the rotating cylinder 31 are provided for physically scraping off the oxide layer on the surface of the metal contact plate 8. A brush is provided inside the rotating cylinder 31 that is connected to the brush inside the rotating cylinder 31. The first piston 32 is slidably connected to the wall. One end of the reciprocating screw 28 passes through one side of the outer wall of the rotating drum 31 and is fixedly connected to the first piston 32. The reciprocating screw 28 is rotatably connected to the rotating drum 31. A first collection box 35 is provided on the outer wall of the rotating drum 31. A second connecting pipe 33 and a third connecting pipe 34 are provided on the rotating drum 31 and communicate with its interior. The ends of the second connecting pipe 33 and the third connecting pipe 34 that communicate with the rotating drum 31 are located on the side of the first piston 32 away from the reciprocating screw 28. The end of the second connecting pipe 33 away from the rotating drum 31 is connected to the first collection box 35. A one-way valve is provided in the second connecting pipe 33, the third connecting pipe 34, the fourth connecting pipe 39 and the two first connecting pipes 3. The reciprocating screw 28 is fixedly connected to the inner ring of the one-way bearing 25. The connecting rod 45 and the first piston 32 are both rectangular, so that the rotation of the first piston 32 can drive the rotating drum 31 to rotate, and the connecting rod 45 will not rotate during the reciprocating motion.

[0022] The housing 1 is equipped with a warning component connected to the first cleaning component. The warning component includes a mounting box 14 located on the inner wall of the other side of the housing 1. A bimetallic strip 18 is installed inside the mounting box 14. Two first springs 16 are fixedly installed on the inner top of the mounting box 14. One end of each of the two first springs 16 is fixedly connected to a second electrical contact 17 located above the bimetallic strip 18. A first electrical contact 15 is located on the inner top of the mounting box 14. A moving groove 40 located outside the cylinder 43 is opened on the connecting rod 45. A third guide rod 42 is fixedly connected between the inner walls of the two ends of 0. A sound-generating block 38 adapted to the moving groove 40 is slidably fitted on the outer wall of the third guide rod 42. The first rotating rod 36 is rotatably connected to the sound-generating block 38. A third spring 41 is fixedly connected between the sound-generating block 38 and the inner wall of the moving groove 40 near the cylinder 43. The bimetallic strip 18 is connected in parallel with two metal contact plates 8. When the wire harness breaks, the forced current flows through the bimetallic strip 18. The first electric contact 15 and the second electric contact 17 are both located in the circuit of the servo motor 21.

[0023] In use, the wire harness to be connected is inserted into the multiple bases 49 inside the positioning box 13. Initially, the second piston 44 abuts against the inner wall of one end of the cylinder 43, and its sound-emitting block 38 abuts against the inner wall of one end of the moving groove 40. The servo motor 21 is then activated to rotate the shaft 22 and the first gear 23 in the following direction. Figure 6 The first gear 23 rotates clockwise, causing the second rotating rod 37 to rotate clockwise. During the clockwise rotation of the second rotating rod 37, it first contacts the outer wall of the first rotating rod 36 near the cylinder 43. Because the sound-emitting block 38 abuts against the inner wall of one end of the moving groove 40, and as the second rotating rod 37 continues to rotate, the first rotating rod 36, the sound-emitting block 38, the connecting rod 45, and the second piston 44 all move away from the second collection box 47, and the fourth spring 46 is compressed. This allows the dust in the two positioning boxes 13 and the dust on the wire harness to be drawn into the cylinder 43 through the first connecting pipe 3. When the second rotating rod 37 continues to rotate, the second rotating rod 37 separates and no longer contacts the first rotating rod 36. The pressure generated by the compression of the fourth spring 46 allows the first rotating rod 36, the sound-generating block 38, the connecting rod 45 and the second piston 44 to be reset. This allows the dust drawn into the cylinder 43 to be squeezed into the second collection box 47 through the fourth connecting pipe 39. This process is repeated. When the first gear 23 rotates, the meshing of the first gear 23 and the second gear 24 causes the second gear 24 and the outer ring of the one-way bearing 25 to rotate counterclockwise. At this time, the inner and outer rings of the one-way bearing 25 are locked, and its reciprocating screw 28 rotates accordingly. Through the guidance of the two second guide rods 27 on the driving block 26, the driving block 26, the second guide rods 27, the driven block 29, the rotating drum 31, and the bristles 30 can move back and forth synchronously. When the reciprocating screw 28 rotates, its first piston 32 rotates accordingly. Because the first piston 32 is... The rectangular body is slidably connected to the inner wall of the rotating drum 31, which allows the rotating drum 31 and the brush 30 to rotate. When the rotating brush 30 rotates and reciprocates, it can clean the surfaces of the two metal contact plates 8, improving the detection effect. When the rotating drum 31 reciprocates, its first piston 32 reciprocates inside the rotating drum 31, which can suck the cleaned oxide layer debris and dust into the rotating drum 31 through the third connecting pipe 34, and then squeeze it into the first collection box 35 through the second connecting pipe 33, and so on. After cleaning the inside of the positioning box 13, the surface of the wire harness, and the surface of the metal contact plate 8, the servo motor 21 stops rotating, and the rotating drum 31 returns to its initial position, no longer obstructing the metal contact plate 8 from approaching. The hydraulic cylinder 9 is activated to bring the two sliding blocks 11 closer together, thereby allowing the two metal contact plates 8 to contact each other and complete the connection of the wire harness. When the two sliding blocks 11 approach each other, they contact the positioning cover plate 7 through the inclined surface of the guide block 6, thereby allowing the positioning cover plate 7 to move downward, the telescopic rod 19 retracts, the second spring 20 is compressed, and the downward movement of the positioning cover plate 7 can press the wire harness in the base 2. Then, power is turned on for testing. When the wire harness is normal... If there is no damage, its resistance is low, and the main current is relatively large at the wire harness. The branch current is relatively small at the bimetallic strip 18 (composed of two metals with different coefficients of expansion, which bends towards the side with the lower coefficient of expansion when heated). It generates little heat and does not deform. When the wire harness is broken or damaged, the current is forced through the bimetallic strip 18 branch, causing the bimetallic strip 18 to bend due to heat. This pushes the second contact 17 to move upward and make contact with the first contact 15. The first spring 16 is compressed, which enables the output shaft of the servo motor 21 to reverse, thereby enabling the rotating shaft 22 and the first gear 23 to rotate in the direction of rotation. Figure 6 When the first gear 23 rotates counterclockwise, it drives the second rotating rod 37 to rotate counterclockwise. During the counterclockwise rotation of the second rotating rod 37, it first contacts the outer wall of the first rotating rod 36 away from the cylinder 43. Because the second piston 44 abuts against the inner wall of one end of the cylinder 43, the sound-producing block 38 can move towards the cylinder 43, and the third spring 41 is compressed. When the second rotating rod 37 continues to rotate until it no longer contacts the first rotating rod 36, the elastic force generated by the compression of the third spring 41 can cause the sound-producing block 38 to quickly hit the end wall of the moving groove 40 to reset. The sound indicates an abnormality in the wiring harness. The hydraulic cylinder 9 then moves the two metal contact plates 8 apart. The compression of the second spring 20 releases the wire harness, allowing it to be pulled out. After the bimetallic strip 18 cools naturally, it returns to its initial state. The compression of the first spring 16 causes the first electrical contact 15 and the second electrical contact 17 to separate. When the first gear 23 rotates counterclockwise, the second gear 24 and the outer ring of the one-way bearing 25 rotate clockwise. At this time, the inner and outer rings of the one-way bearing 25 idle, and the reciprocating screw 28 does not rotate.

[0024] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A kind of abnormality detection device of district line loss, including box (1), it is characterized in that, The outer walls at both ends of the box (1) are provided with openings (5). A first guide rod (10) is fixedly connected between the inner walls of the two sides of the box (1). Two symmetrically arranged sliding blocks (11) are slidably fitted on the first guide rod (10). Hydraulic cylinders (9) are fixedly installed on the inner walls of both sides of the box (1). The telescopic ends of the two hydraulic cylinders (9) are respectively fixedly connected to the two sliding blocks (11). Metal contact plates (8) are provided on the side walls of the two sliding blocks (11) that are close to each other. Positioning boxes (13) are provided on the two sliding blocks (11). Multiple sets of bases (2) are provided in the two positioning boxes (13). Two telescopic rods (19) are fixedly installed on the inner top of the box (13). The telescopic ends of the two telescopic rods (19) located in the same positioning box (13) are fixedly connected to the same positioning cover plate (7). The two positioning cover plates (7) are fixedly connected to the inner bottom of the positioning box (13). A guide block (6) is fixedly installed on the inner top of the box body (1). The vertical cross section of the guide block (6) is an isosceles trapezoid shape. A first cleaning component is provided on the box body (1). A second cleaning component connected to the first cleaning component is provided on the box body (1). A warning component connected to the first cleaning component is provided on the box body (1). The warning component includes a mounting box (14) on the inner wall of the other side of the housing (1). A bimetallic strip (18) is provided inside the mounting box (14). Two first springs (16) are fixedly installed on the inner top of the mounting box (14). One end of the two first springs (16) is fixedly connected to the same second electrical contact (17) located above the bimetallic strip (18). A first electrical contact (15) is provided on the inner top of the mounting box (14). The bimetallic strip (18) is connected in parallel with two metal contact plates (8). The first electrical contact (15) and the second electrical contact (17) are both located in the circuit of the servo motor (21). The circuit can be turned on and off by the physical deformation characteristics of the bimetallic strip (18). When the wire harness breaks and the current flows through the bimetallic strip (18) branch, it is heated and bent, pushing the second electrical contact (17) to contact the first electrical contact (15), triggering the servo motor to reverse instantly, thereby driving the sound-emitting block to hit the end wall of the moving slot at high speed, thus warning of abnormality.

2. The device for detecting abnormal line loss of a transformer area according to claim 1, characterized in that, The first cleaning component includes a protective cover (4) fixedly installed on the outer wall of one side of the housing (1). A servo motor (21) located inside the protective cover (4) is fixedly installed on the outer wall of one side of the housing (1). A rotating shaft (22) is fixedly connected to the output end of the servo motor (21). A first gear (23) is fixedly installed on the outer wall of the rotating shaft (22). A cylinder (43) is fixedly installed on the inner wall of one side of the protective cover (4). A connecting rod (45) is slidably connected to the outer wall of the cylinder (43) near the first gear (23). A second piston (44) is fixedly installed at one end of the connecting rod (45) inside the cylinder (43) and slidably connected to the inner wall of the cylinder (43). The second piston (44) is fixedly connected to the inner wall of the cylinder (43) near the first gear (23). There is a fourth spring (46), and a first rotating rod (36) is provided on the side of the connecting rod (45) near the servo motor (21). The first gear (23) is rotatably connected to a second rotating rod (37) on the side of the first rotating rod (36). A fourth connecting pipe (39) and two first connecting pipes (3) are provided on the cylinder (43) and communicate with its interior. The ends of the fourth connecting pipe (39) and the two first connecting pipes (3) that communicate with the cylinder (43) are located on the side of the second piston (44) away from the connecting rod (45). The ends of the two first connecting pipes (3) that are away from the cylinder (43) extend into the two positioning boxes (13). A second collection box (47) is provided on the protective cover (4). The end of the fourth connecting pipe (39) that is away from the cylinder (43) extends into the second collection box (47).

3. The device for detecting abnormal line loss of a transformer area according to claim 2, characterized in that, The second cleaning component includes a reciprocating screw (28) that is rotatably connected to one side of the outer wall of the housing (1). A one-way bearing (25) is provided on the outer wall of the reciprocating screw (28). A second gear (24) that meshes with the first gear (23) is fixedly installed on the outer ring of the one-way bearing (25). An active block (26) that is threadedly connected to the reciprocating screw (28) is provided on the outer wall of the reciprocating screw (28). Two second guide rods (27) that are slidably connected to one side of the outer wall of the housing (1) are provided through the reciprocating screw (28). One end of each of the two second guide rods (27) located inside the protective cover (4) is connected to the active block (26). The other end of each of the two second guide rods (27) is fixedly installed with the same passive block (29) located inside the housing (1). A rotating cylinder (31) that is rotatably connected to the passive block (29) is provided through the passive block (29). A plurality of bristles (30) that are evenly distributed are provided on the outer wall of the rotating cylinder (31).

4. The device for detecting abnormal line loss of a transformer area according to claim 3, characterized in that, The rotating drum (31) is provided with a first piston (32) that is slidably connected to its inner wall. One end of the reciprocating screw (28) passes through one side of the outer wall of the rotating drum (31) and is fixedly connected to the first piston (32). The reciprocating screw (28) is rotatably connected to the rotating drum (31). A first collection box (35) is provided on the outer wall of the rotating drum (31). A second connecting pipe (33) and a third connecting pipe (34) that communicate with the inside of the rotating drum (31) are provided on the rotating drum (31). The ends of the second connecting pipe (33) and the third connecting pipe (34) that communicate with the rotating drum (31) are both located on the side of the first piston (32) away from the reciprocating screw (28). The end of the second connecting pipe (33) that is away from the rotating drum (31) is connected to the first collection box (35).

5. The device for detecting abnormal line loss of a transformer area according to claim 4, characterized in that, The connecting rod (45) has a movable groove (40) located outside the cylinder (43). A third guide rod (42) is fixedly connected between the inner walls of the two ends of the movable groove (40). A sound-generating block (38) adapted to the movable groove (40) is slidably fitted on the outer wall of the third guide rod (42). A third spring (41) is fixedly connected between the sound-generating block (38) rotatably connected to the first rotating rod (36) and the inner wall of the movable groove (40) near the cylinder (43).

6. The device for detecting abnormal line loss of a transformer area according to claim 4, characterized in that, One-way valves are provided in the second connecting pipe (33), the third connecting pipe (34), the fourth connecting pipe (39) and the two first connecting pipes (3).

7. The device for detecting abnormal line loss of a transformer area according to claim 4, characterized in that, The reciprocating lead screw (28) is fixedly connected to the inner ring of the one-way bearing (25), and the connecting rod (45) and the first piston (32) are both rectangular.