A transformer with abnormal monitoring function

Abstract

The present invention discloses a transformer with an abnormality monitoring function, which belongs to the technical field of transformers. The transformer includes a monitoring crossbar installed on a transformer clamp, wherein the bottom of the monitoring crossbar is connected to a high-voltage terminal via an installation end plate, and the high-voltage terminal is connected to an insulator. The monitoring crossbar is detachably connected to the transformer housing via L-shaped fixings provided at both ends. The present invention monitors the dust accumulation thickness on the surface of the insulator in real time through a light-sensing detection device, and automatically triggers a cleaning program when the dust accumulation reaches a preset threshold value. The insulator that is prone to flashover is automatically cleaned, and traditional passive cleaning is upgraded to active prevention, thereby avoiding flashover accidents from the source. The dust is collected and weighed through a dust collection filter cover at the same time, and the dust accumulation amount is verified twice by a pressure touch sensor. The double data ensures the accuracy of the alarm, avoids misjudgment, and issues an early warning when the quantitative accumulation amount triggers the set standard, providing data support for the overall transformer maintenance and having the effect of reminding the overall maintenance of the transformer.

Description

Technical Field

[0001] The present invention relates to the technical field of transformers, and in particular to a transformer with an abnormality monitoring function. Background Art

[0002] A transformer is an electrical device that uses the principle of electromagnetic induction to change AC voltage, current and impedance. Pollution flashover is a phenomenon in which flashover discharge occurs under humid conditions after the surface of the insulator of power equipment is polluted, which seriously threatens the safety of the power grid. Pollution flashover often occurs on the surface of insulators. Compared with oil-immersed transformers, the insulators of dry-type transformers (mainly bushings and supporting insulation parts) are arranged horizontally rather than vertically. When arranged horizontally, the sheds are usually designed to have an inclination angle of 30-45°, so that rainwater can flow quickly along the slope of the sheds, and the area for dust accumulation is also smaller, so the flashover channels are also less likely to be generated. However, in actual use, dry-type transformers need to be cooled by air cooling. While dissipating heat, some dust in the environment is more likely to accumulate on the surface of the insulator. Insulators used in some special industrial environments will also produce pollution flashover, and the insulation material of the dry-type transformer itself will also produce pollution flashover when dust accumulates, which will affect the life of the equipment and pose a serious safety hazard. The current monitoring method for flashover of dry-type transformers is not perfect, and the regular cleaning method cannot detect and intervene in time. Based on this, a transformer with abnormal monitoring function is proposed. Summary of the Invention

[0003] The purpose of the present invention is to solve the problems existing in the prior art and to propose a transformer with an abnormality monitoring function.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A transformer with an abnormality monitoring function, comprising a monitoring crossbar mounted on a transformer clamp, wherein the bottom of the monitoring crossbar is connected to a high-voltage terminal via a mounting end plate, wherein the high-voltage terminal is connected to an insulator, and the monitoring crossbar is detachably connected to the transformer housing via L-shaped fixings provided at both ends;

[0006] The monitoring crossbar is provided with a light sensing detection device for detecting the amount of dust that produces dirty flash; a U-shaped support frame is provided above the monitoring crossbar; the U-shaped support frame is connected to a control U-shaped frame through an electric push rod; the control U-shaped frame is connected to a gathering and collecting member through a side moving member; the gathering and collecting member is used to gather and collect the tested dust on the monitoring crossbar; a dust collection module for collecting and weighing the tested dust is provided in the middle position of the monitoring crossbar;

[0007] A cleaning seat is fixedly provided on one side of the control U-shaped frame, and the cleaning seat is connected to a plurality of cleaning vertical columns through a horizontal moving part. An insulator positioning sleeve is provided at the bottom of the cleaning vertical column, and reciprocating linkage-controlled cleaning brushes are provided at both ends of the insulator positioning sleeve.

[0008] As a preferred solution, the light sensing detection device includes two groups of receiving ends and transmitting ends, the transmitting ends are arranged on both sides of the top of the U-shaped support frame, the upper surface of the monitoring cross bar is concave, and the receiving ends are located on both sides of the monitoring cross bar and correspond to the transmitting ends.

[0009] As a preferred solution, the gathering and gathering part includes a U-shaped slide slidably arranged on the surface of the monitoring cross bar, the side wall of the U-shaped slide is provided with a telescopic opening, the inner wall of the telescopic opening is connected to a fixed ear block through a telescopic connecting rod, the bottom of the fixed ear block is fixedly connected to a dust collecting scraper, and the side wall of the dust collecting scraper is provided with a wind-blocking strip.

[0010] As a preferred solution, the side moving part includes a limiting slide opened on the U-shaped support frame, the inner wall of the limiting slide is slidably connected to the limiting slider, one end of the limiting slider is connected to the control U-shaped frame, and the other end is connected to the connecting end seat, and the connecting end seat is rotatably connected to the U-shaped slide through a linkage rotating rod.

[0011] As a preferred solution, the dust collection module includes a dust collection detection seat arranged on the monitoring cross bar, a T-shaped air cavity is opened in the dust collection detection seat, and interference pistons are slidingly arranged at both ends of the T-shaped air cavity. The side wall of the U-shaped slide is fixedly provided with an extrusion column for squeezing the interference piston to move, and the bottom of the T-shaped air cavity is connected to a linkage piston through a reset spring.

[0012] As a preferred solution, a dust conveying trough is provided near the dust collection detection seat at the monitoring cross bar, a dust collection pipe is provided at the bottom of the dust conveying trough, the inner wall of the dust collection pipe is connected to the dust filter cover through a pressure touch sensor, and a one-way suction piston is slidingly provided at the bottom of the dust collection pipe, and the one-way suction piston is connected to the linkage piston through a linkage support rod.

[0013] As a preferred solution, the horizontal moving part includes an adjusting push rod arranged on the cleaning seat, the output end of the adjusting push rod is connected to the transverse moving seat, the bottom of the transverse moving seat is fixedly connected to multiple telescopic support sleeves, and the cleaning vertical column is connected to the telescopic support sleeve through a connecting spring.

[0014] As a preferred solution, the reciprocating linked control cleaning brush includes an annular groove opened on the surface of both sides of the insulator positioning sleeve, the annular groove is slidably connected to the cleaning ring through an annular ball, the surface of the cleaning ring is provided with a brush layer, the cleaning vertical column is slidably connected to the reciprocating rod through a retaining ring, the bottom of the reciprocating rod is connected to the cleaning ring through a reciprocating rotating rod, and the top of the reciprocating rod is fixedly connected to the bottom of the telescopic support sleeve.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The present invention uses a light-sensing detection device to monitor the dust thickness on the surface of the insulator in real time. When the dust accumulation reaches a preset threshold, the cleaning program is automatically triggered to automatically clean the insulators that are prone to flashover. Traditional passive cleaning is upgraded to active prevention, avoiding flashover accidents from the source. Dust is collected and weighed through the dust collection filter cover at the same time. The amount of dust accumulation is verified twice by the pressure touch sensor. The dual data ensures the accuracy of the alarm and avoids misjudgment. When the quantitative accumulation triggers the set standard, an early warning is issued, providing data support for the overall transformer maintenance and serving as a reminder for the overall maintenance of the transformer.

[0017] 2. The present invention uses an electric push rod to drive the cleaning ring to perform reciprocating rotation and scrubbing on the surface of the insulator, without the need for manual intervention, and is adaptable to harsh industrial environments. The U-shaped slide drives the dust collection scraper to synchronously clean the surface of the monitoring crossbar, ensuring that the light sensing device is not disturbed by residual dust during the next detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a transformer with an abnormality monitoring function proposed by the present invention;

[0019] Figure 2 for Figure 1 Schematic diagram of the enlarged structure at A in the middle;

[0020] Figure 3 for Figure 1 Schematic diagram of the enlarged structure at B in the middle;

[0021] Figure 4 This is a schematic structural diagram of an insulator in a transformer with an abnormality monitoring function proposed by the present invention;

[0022] Figure 5 This is a structural diagram of a horizontal moving part in a transformer with an abnormality monitoring function proposed by the present invention;

[0023] Figure 6 This is a schematic diagram of the assembly structure of a reciprocating linked control type cleaning brush in a transformer with an abnormality monitoring function proposed by the present invention;

[0024] Figure 7 This is a schematic cross-sectional structural diagram of a dust collection detection seat in a transformer with an abnormality monitoring function proposed by the present invention.

[0025] In the figure: 1. Monitoring crossbar; 2. Mounting end plate; 3. High-voltage terminal; 4. Insulator; 5. L-shaped fixing piece; 6. U-shaped support frame; 7. Electric push rod; 8. Control U-shaped frame; 9. Cleaning seat; 10. Cleaning vertical column; 11. Insulator positioning sleeve; 12. Receiving end; 13. Transmitting end; 14. U-shaped slide; 15. Telescopic connecting rod; 16. Fixed ear block; 17. Dust scraper; 18. Wind resistance strip; 19. Limiting slide; 20. Limit Position slider; 21. Connecting end seat; 22. Linkage rotating rod; 23. Dust collection detection seat; 24. T-shaped air cavity; 25. Resistance piston; 26. Extrusion column; 27. Linkage piston; 28. Dust conveying trough; 29. ​​Dust collection pipe; 30. Dust filter cover; 31. One-way suction piston; 32. Linkage support rod; 33. Adjustment push rod; 34. Lateral moving seat; 35. Telescopic support sleeve; 36. Cleaning ring; 37. Reciprocating rod; 38. Reciprocating rotating rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0029] Example, see Figures 1 to 7A transformer with an abnormality monitoring function includes a monitoring crossbar 1 installed on a transformer clamp, the bottom of the monitoring crossbar 1 is connected to a high-voltage terminal 3 through a mounting end plate 2, the high-voltage terminal 3 is connected to an insulator 4, and the monitoring crossbar 1 is detachably connected to the transformer housing through L-shaped fixings 5 ​​provided at both ends. The transformer clamp and the transformer housing are prior art and will not be described in detail here.

[0030] The monitoring crossbar 1 is provided with a light-sensing detection device for detecting the amount of dust that causes dirty flash. The light-sensing detection device includes two groups of receiving ends 12 and transmitting ends 13. The transmitting ends 13 are arranged on both sides of the top of the U-shaped support frame 6. The upper surface of the monitoring crossbar 1 is concave. The receiving ends 12 are located on both sides of the monitoring crossbar 1 and correspond to the transmitting ends 13.

[0031] It is worth noting that a glass layer is provided on the surface of the receiving end 12. In the case of dust accumulation, the glass layer will gradually be buried by the dust, thus affecting the termination of the photoelectric signal by the receiving end 12. This solution controls the cleaning of the dust on the insulator 4 by timing the opening of the transmitting end 13 of the photoelectric sensor and whether the receiving end 12 receives the signal, thereby avoiding the occurrence of dirty flash of the insulator.

[0032] A U-shaped support frame 6 is provided above the monitoring cross bar 1. The U-shaped support frame 6 is connected to the control U-shaped frame 8 through an electric push rod 7. The electric push rod 7 is fixedly provided on the U-shaped support frame 6, and its output end is connected to the control U-shaped frame 8. The control U-shaped frame 8 is connected to the gathering and gathering part through the side moving part. Furthermore, the side moving part includes a limit slide 19 opened on the U-shaped support frame 6, and the inner wall of the limit slide 19 is slidably connected to the limit slider 20. One end of the limit slider 20 is connected to the control U-shaped frame 8, and the other end is connected to the connecting end seat 21. The connecting end seat 21 is rotatably connected to the U-shaped slide 14 through a linkage rotating rod 22.

[0033] It should be noted that both ends of the linkage rotating rod 22 are rotatably connected to the connecting end seat 21 and the U-shaped slide 14 through a rotating shaft. In the process of controlling the U-shaped frame 8 to move downward, the U-shaped slide 14 will be driven to slide on the surface of the monitoring cross bar 1, so as to drive the U-shaped slide 14 to automatically clean the accumulated dust on the receiving end 12 after measurement to meet the needs of the next cycle monitoring.

[0034] The collecting and gathering member is used to collect the dust under test on the monitoring cross bar 1. The collecting and gathering member includes a U-shaped slide 14 slidably arranged on the surface of the monitoring cross bar 1. The side wall of the U-shaped slide 14 is provided with a telescopic opening. The inner wall of the telescopic opening is connected to a fixed ear block 16 through a telescopic connecting rod 15. The setting of the telescopic connecting rod 15 is to ensure that the dust collecting scraper 17 will not move due to the reciprocating movement of the U-shaped slide 14 during the process of controlling the electric push rod 7 to move back and forth in a short distance, thereby ensuring that the dust conveying trough 28 is always covered to meet the demand for extracting dust;

[0035] A dust collecting scraper 17 is fixedly connected to the bottom of the fixed ear block 16, and a wind blocking strip 18 is provided on the side wall of the dust collecting scraper 17. The setting of the wind blocking strip 18 can shield the dust conveying trough 28 opened on the monitoring cross bar 1 near the dust collecting detection seat 23, so that when the one-way suction piston 31 moves downward, the wind flows inward from both sides of the dust conveying trough 28, driving the dust to gather, and simultaneously achieving the effect of extracting the dust in the dust conveying trough 28 into the dust collecting filter cover 30.

[0036] A dust collection module for collecting and weighing the tested dust is provided in the middle position of the monitoring cross bar 1; the dust collection module includes a dust collection detection seat 23 provided on the monitoring cross bar 1, and a T-shaped air cavity 24 is provided in the dust collection detection seat 23. A resistance piston 25 is slidingly provided at both ends of the T-shaped air cavity 24, and an extrusion column 26 for squeezing the resistance piston 25 to move is fixedly provided on the side wall of the U-shaped slide 14, and a linkage piston 27 is connected to the bottom of the T-shaped air cavity 24 through a reset spring.

[0037] Furthermore, a dust conveying trough 28 is provided on the monitoring cross bar 1 near the dust collecting detection seat 23, and a dust collecting pipe 29 is provided at the bottom of the dust conveying trough 28. The inner wall of the dust collecting pipe 29 is connected to the dust collecting filter cover 30 through a pressure touch sensor. The pressure touch sensor is a prior art, which is used to weigh the collected dust in the dust collecting filter cover 30, so as to automatically alarm when the predetermined design value is reached, reminding the maintenance personnel to clean the dust of the transformer; a one-way suction piston 31 is slidingly provided at the bottom of the dust collecting pipe 29, and the one-way suction piston 31 is connected to the linkage piston 27 through a linkage support rod 32. The one-way suction piston 31 can be closed when it moves down and opened when it moves up. It is a prior art and will not be described in detail here.

[0038] A cleaning seat 9 is fixedly provided on one side of the control U-shaped frame 8, and the cleaning seat 9 is connected to a plurality of cleaning vertical columns 10 through a horizontal moving part. Furthermore, the horizontal moving part includes an adjusting push rod 33 arranged on the cleaning seat 9, and the output end of the adjusting push rod 33 is connected to a horizontal moving seat 34, and a plurality of telescopic support sleeves 35 are fixedly connected to the bottom of the horizontal moving seat 34. The cleaning vertical column 10 is connected to the telescopic support sleeve 35 through a connecting spring, so that the cleaning vertical column 10 and the telescopic support sleeve 35 can be telescopically moved.

[0039] An insulator positioning sleeve 11 is provided at the bottom of the cleaning column 10, and reciprocating linkage-controlled cleaning brushes are provided at both ends of the insulator positioning sleeve 11. The reciprocating linkage-controlled cleaning brushes include annular grooves opened on the surfaces of both sides of the insulator positioning sleeve 11. The annular grooves are slidably connected to a cleaning ring 36 through an annular ball. A brush layer is provided on the surface of the cleaning ring 36. The cleaning column 10 is slidably connected to a reciprocating rod 37 through a retaining ring. The bottom of the reciprocating rod 37 is connected to the cleaning ring 36 through a reciprocating rotating rod 38. The top of the reciprocating rod 37 is fixedly connected to the bottom of the telescopic support sleeve 35. Since the insulator 4 is arranged horizontally below the insulator 4, dust will not accumulate here.

[0040] In the present invention, during the use of the transformer, due to the air cooling and heat dissipation, dust is more likely to accumulate around the dry-type transformer. By regularly turning on the transmitting end 13 of the photoelectric sensor, the receiving end 12 will receive the signal. The dust will pass through the signal transmission process. When the dust accumulation reaches a preset threshold, the receiving end 12 will be blocked from receiving the signal. At this time, the electric push rod 7 will be triggered to automatically remove dust from the insulator 4.

[0041] When the electric push rod 7 is turned on, it will drive the control U-shaped frame 8 connected to its output end to move downward continuously. At this time, the cleaning seat 9 set on one side of the control U-shaped frame 8 will drive the horizontal moving seat 34 to move downward, and the cleaning vertical column 10 connected to the telescopic support sleeve 35 will move downward, and the elastically arranged insulator positioning sleeve 11 will be engaged with the column of the insulator 4. At this time, the cleaning rings 36 set on both sides of the insulator positioning sleeve 11 are at both sides of the insulator to achieve effective contact with the insulator. At this time, the electric push rod 7 is controlled to move back and forth in a short distance, driving the telescopic support sleeve 35 set on the outer wall of the cleaning vertical column 10 to reciprocate up and down on the cleaning vertical column 10. In this process, the reciprocating rod 37 and the reciprocating rotating rod 38 are driven to make the cleaning ring 36 set on the insulator positioning sleeve 11 rotate back and forth continuously, thereby cleaning the dust on the surface of the insulator 4 and cleaning the insulator after monitoring. It will not be affected by environmental factors and ensure that the insulator will not produce dirty flashover.

[0042] At the same time, while controlling the U-shaped frame 8 to move downward, the limit slider 20 will be driven to move downward, and the U-shaped slider 14 rotatably connected to the limit slider 20 will be driven to move. The U-shaped slider 14 slides on the surface of the monitoring cross bar 1, which drives the dust collecting scraper 17 to gather the dust accumulated on the monitoring cross bar 1 and collect it into the dust conveying trough 28. This process will realize the cleaning of the dust on the receiving end 12, meeting the dust monitoring requirements of the next cycle.

[0043] When the electric push rod 7 is controlled to move back and forth in a short distance, the U-shaped slide 14 will be driven to move back and forth. At this time, the extrusion column 26 set on the U-shaped slide 14 will continuously squeeze the piston 25 back and forth during the reciprocating movement. Under the action of the T-shaped air cavity 24, the dust can be collected in the dust filter cover 30. By designing the dust weight threshold in advance, an alarm will be automatically issued when the predetermined design value is reached, reminding the maintenance personnel to carry out an effective cleaning of the entire transformer, avoiding the flashover of other parts of the transformer due to dust accumulation, significantly improving the service life of the transformer, and being able to control the safety of the transformer in real time according to the environmental conditions, so as to ensure the normal use of the transformer in various environments.

[0044] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A transformer with an abnormality monitoring function, comprising a monitoring crossbar (1) mounted on a transformer clamp, characterized in that: The bottom of the monitoring crossbar (1) is connected to a high-voltage terminal (3) via a mounting end plate (2), and the high-voltage terminal (3) is connected to an insulator (4). The monitoring crossbar (1) is detachably connected to the transformer housing via L-shaped fixings (5) provided at both ends. The monitoring crossbar (1) is provided with a light sensing detection device for detecting the amount of dust that generates dirty flash; a U-shaped support frame (6) is provided above the monitoring crossbar (1); the U-shaped support frame (6) is connected to a control U-shaped frame (8) via an electric push rod (7); the control U-shaped frame (8) is connected to a gathering and collecting member via a side moving member; the gathering and collecting member is used to gather and collect the dust under test on the monitoring crossbar (1); a dust collection module for collecting and weighing the dust under test is provided in the middle position of the monitoring crossbar (1); A cleaning seat (9) is fixedly provided on one side of the control U-shaped frame (8), and the cleaning seat (9) is connected to a plurality of cleaning vertical columns (10) via a horizontal moving member. An insulator positioning sleeve (11) is provided at the bottom of the cleaning vertical column (10), and reciprocating joint-control cleaning brushes are provided at both ends of the insulator positioning sleeve (11); The gathering and gathering member comprises a U-shaped slide (14) slidably arranged on the surface of the monitoring crossbar (1), a telescopic opening is provided on the side wall of the U-shaped slide (14), a fixed ear block (16) is connected to the inner wall of the telescopic opening via a telescopic connecting rod (15), a dust collecting scraper (17) is fixedly connected to the bottom of the fixed ear block (16), and a wind blocking strip (18) is provided on the side wall of the dust collecting scraper (17); The side moving member includes a limit slide (19) provided on the U-shaped support frame (6), the inner wall of the limit slide (19) is slidably connected to a limit slider (20), one end of the limit slider (20) is connected to the control U-shaped frame (8), and the other end is connected to a connecting end seat (21), and the connecting end seat (21) is rotatably connected to the U-shaped slide (14) through a linkage rotating rod (22); The dust collection module comprises a dust collection detection seat (23) arranged on the monitoring crossbar (1), a T-shaped air cavity (24) is provided in the dust collection detection seat (23), and a contact piston (25) is slidably provided at both ends of the T-shaped air cavity (24), an extrusion column (26) for squeezing the contact piston (25) to move is fixedly provided on the side wall of the U-shaped slide (14), and a linkage piston (27) is connected to the bottom of the T-shaped air cavity (24) via a return spring; The monitoring crossbar (1) is provided with a dust conveying trough (28) near the dust collecting detection seat (23), a dust collecting pipe (29) is provided at the bottom of the dust conveying trough (28), the inner wall of the dust collecting pipe (29) is connected to a dust collecting filter cover (30) via a pressure touch sensor, a one-way suction piston (31) is slidably provided at the bottom of the dust collecting pipe (29), and the one-way suction piston (31) is connected to the linkage piston (27) via a linkage support rod (32).

2. The transformer with abnormality monitoring function according to claim 1, characterized in that: The light sensing detection device comprises two groups of receiving ends (12) and transmitting ends (13), wherein the transmitting ends (13) are arranged on both sides of the top of the U-shaped support frame (6), and the upper surface of the monitoring cross bar (1) is recessed, and the receiving ends (12) are located on both sides of the monitoring cross bar (1) and correspond to the transmitting ends (13).

3. The transformer with abnormality monitoring function according to claim 1, characterized in that: The horizontal moving member comprises an adjusting push rod (33) arranged on a cleaning seat (9); an output end of the adjusting push rod (33) is connected to a transverse moving seat (34); a bottom of the transverse moving seat (34) is fixedly connected to a plurality of telescopic support sleeves (35); and the cleaning vertical column (10) is connected to the telescopic support sleeves (35) via a connecting spring.

4. The transformer with abnormality monitoring function according to claim 3, characterized in that: The reciprocating linkage-controlled cleaning brush comprises an annular chute provided on both side surfaces of the insulator positioning sleeve (11), the annular chute being slidably connected to a cleaning ring (36) via an annular ball, the surface of the cleaning ring (36) being provided with a brush layer, the cleaning vertical column (10) being slidably connected to a reciprocating rod (37) via a snap ring, the bottom of the reciprocating rod (37) being connected to the cleaning ring (36) via a reciprocating rotating rod (38), and the top of the reciprocating rod (37) being fixedly connected to the bottom of the telescopic support sleeve (35).

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