A remote control automatic device for CT polarity calibration

Abstract

The present invention relates to the field of electric power detection technology, and in particular to a remote control automatic device for CT polarity verification, comprising a base plate, two side edge positions of the bottom of the base plate that are far from each other are fixedly connected with a support plate, a mobile frame is movably installed at the bottom of the base plate, rollers are installed at the end of the mobile frame, a lifting rod is bolted to the top of the base plate, a verification table is fixedly connected to the top of the lifting rod, a movable disk is rotatably connected to the top of the verification table, a detector is bolted to the top of the movable disk, and vertical plates are fixedly connected to the opposite sides of the top of the movable disk near the detector, and connectors are provided on one side of the two vertical plates. A remote control automatic device for CT polarity verification of the present invention integrates the CT polarity verification device by setting an automated remote control verification device, and then realizes CT polarity verification by remote control, and transmits the detection results in real time, without much manual participation in the process, thereby reducing labor costs and reducing manual workload while improving verification efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of electric power detection, in particular to a CT polarity verification remote control automatic device. Background Art

[0002] CT polarity check refers to the detection of the current direction relationship between the primary winding and the secondary winding of the current transformer to ensure the correctness of its polarity mark. CT polarity check is of great significance to the normal operation of the protection, measurement and metering equipment of the power system. The correctness of CT polarity is essential for the normal operation of the protection, measurement and metering equipment of the power system. When installing a new CT and putting the CT secondary cable into operation or replacing it, determining the correctness of the CT polarity is an essential work procedure for relay protection personnel.

[0003] At present, when checking the CT polarity of the power system, the DC method is generally selected for verification. The staff holds the ammeter and connects it to the end of the CT polarity verification line. Then the pointer movement of the ammeter is observed to confirm whether the CT polarity is qualified, and then the verification result is notified to other staff. Therefore, the current detection method requires multiple human participation, and manual inspection is required during the process, and then information is transmitted. However, due to the interference of the noisy environment on the operation, the employees need to shout loudly, which not only increases the manual workload, but also makes the information transmission have the possibility of errors. It can be seen that the current detection method is not only inefficient and has a large manual workload, but also the environmental impact can easily cause deviations in the transmission of the verification results, affecting the accuracy of the verification. Summary of the invention

[0004] The object of the present invention is to provide a remote control automatic device for CT polarity calibration to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a remote control automatic device for CT polarity calibration, comprising a bottom plate, two side edge positions of the bottom plate away from each other are fixedly connected with a support plate, a moving frame is movably installed at the bottom of the bottom plate, a roller is installed at the end of the moving frame, a lifting rod is bolted to the top of the bottom plate, a calibration table is fixedly connected to the top of the calibration table, and a movable disk is rotatably connected to the top of the calibration table;

[0006] The detector is bolted to the top of the movable disk, and vertical plates are fixedly connected to the top of the movable disk near the opposite sides of the detector. A connecting head is provided on one side of the two vertical plates, and a verification plug is installed on one side of the connecting head. Two horizontal strips are fixedly connected between the two vertical plates, and a No. 1 threaded rod is rotatably connected between the two horizontal strips. The No. 1 threaded rod penetrates and is threadedly connected with a movable plate. Both ends of the movable plate penetrate and are slidably connected with a limit rod, and the limit rod is fixedly connected between the two horizontal strips. The top and bottom of the movable plate are fixedly connected with a connecting plate, and the other end of the connecting plate is fixedly connected with a vertical plate. Movable plates are slidably provided on both sides of the vertical plate near the connecting head, and the movable plate is fixedly connected to the side wall of the connecting head. A rotating column is rotatably provided at the bottom of the verification table, and a signal amplifier is movably installed at the bottom of the rotating column.

[0007] In a further embodiment, a winding groove is opened inside the two vertical panels, and a wire threading port is opened through the side wall of the vertical panel close to the connector, the wire threading port is connected to the winding groove, and a cable is fixedly connected to the side of the connector away from the verification plug, and the other end of the cable passes through the side wall of the vertical panel and is connected to the detector.

[0008] In a further embodiment, the inner groove of the winding groove is rotatably connected to a winding reel, the cable is wound around the winding reel, and a rebound torsion spring is provided at the rotating shaft of the winding reel.

[0009] In a further embodiment, a positioning plate is fixedly connected to the top of the connector, and a camera lens is installed on a side of the positioning plate close to the calibration plug.

[0010] In a further embodiment, a linear motor is fixedly connected to one end of the movable plate close to the vertical plate, a movable groove is opened on the side wall of the vertical plate relative to the linear motor, the linear motor is adapted to and slidably connected to the movable groove, a guide rail is fixedly connected to the inner groove wall of the movable groove, and the linear motor is slidably sleeved on the outside of the guide rail.

[0011] In a further embodiment, a rotating rod is rotatably connected to the inner side of the bottom end of the rotating column, a movable frame is fixedly connected to the outer side of the rotating rod, and the signal amplifier is bolted to the outer side of the movable frame.

[0012] In a further embodiment, one end of the rotating rod passes through the side wall of the bottom end of the rotating column and is fixedly connected to a No. 1 gear, a No. 2 gear is meshedly connected above the No. 1 gear, the No. 2 gear is rotatably connected to the outer wall of the rotating column, a motor is installed on the inner side of the No. 2 gear near the bottom end of the rotating column, and the output end of the motor is fixedly connected to the No. 2 gear.

[0013] In a further embodiment, a No. 2 threaded rod is rotatably connected to the bottom center position of the base plate, the No. 2 threaded rod penetrates and is threadedly connected to the movable frame, the bottom end of the No. 2 threaded rod is fixedly connected to a limiting plate, the end of the movable frame relative to the support plate is fixedly connected to a slider, the side wall of the support plate relative to the slider is provided with a sliding groove, and the slider is adapted to the sliding groove and is slidably connected.

[0014] In a further embodiment, a sliding rod is fixedly connected between the inner groove walls at the upper and lower ends of the sliding groove, and the sliding rod penetrates and is slidably connected to the sliding block.

[0015] In a further embodiment, a suction cup is fixedly connected to the bottom of the support plate, an air port is provided on the side wall of the support plate, a fan is provided inside the support plate, and the output end and input end of the fan are respectively connected to the suction cup and the air port through pipes.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention integrates the CT polarity verification device by setting an automated remote control verification device, and then realizes the CT polarity verification and transmits the detection results in real time by remote control. There is no need for much manual participation during the verification, which reduces the labor cost and the workload of manual work and improves the verification efficiency.

[0018] 2. The present invention drives the connector for verification to move forward and backward and up and down by setting a movable plate, a connecting plate, a vertical plate and a movable plate, thereby realizing automatic adaptation to different CT polarity verification scenarios, making the use of the device more convenient and flexible, and setting a signal amplifier to amplify the remote control signal and the data transmission signal, making the remote control use of the CT polarity verification device more stable and efficient;

[0019] 3. The present invention provides a liftable mobile frame and a support plate at the bottom of the base plate. When the CT polarity verification device needs to be moved, the mobile frame can be moved by lowering. Conversely, the mobile frame rises, and then the CT polarity verification device is supported by the support plate. Stable CT polarity verification can be performed at a fixed position, making the use of the CT polarity verification device more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the CT polarity verification device of the present invention;

[0021] Figure 2 It is a three-dimensional schematic diagram of the inspection platform and its top structure of the present invention;

[0022] Figure 3 It is a cross-sectional perspective schematic diagram of the inspection platform and the top structural upright plate of the present invention;

[0023] Figure 4 It is a bottom-up stereoscopic structural schematic diagram of the CT polarity calibration device of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the signal amplifier and the rotating column of the present invention;

[0025] Figure 6 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0026] Figure 7 For the present invention Figure 4 Schematic diagram of the enlarged structure at B.

[0027] In the figure: 1. bottom plate; 2. support plate; 3. mobile frame; 4. roller; 5. lifting rod; 6. calibration table; 7. movable disk; 8. detector; 9. vertical plate; 10. connector; 11. calibration plug; 12. horizontal strip plate; 13. No. 1 threaded rod; 14. mobile plate; 15. limit rod; 16. connecting plate; 17. vertical plate; 18. movable plate; 19. rotating column; 20. signal amplifier; 21. winding groove; 22. threading port; 23. cable; 24. winding reel; 25. positioning plate; 26. camera lens; 27. movable groove; 28. linear motor; 29. ​​guide rail; 30. rotating rod; 31. movable frame; 32. No. 1 gear; 33. No. 2 gear; 34. No. 2 threaded rod; 35. limit plate; 36. slider; 37. slide groove; 38. slide rod; 39. suction cup; 40. air port. DETAILED DESCRIPTION

[0028] The following will be described clearly and completely in conjunction with 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.

[0029] Example 1

[0030] See also Figure 1 - Figure 7 The present embodiment provides a remote control automatic device for CT polarity calibration, comprising a bottom plate 1, the CT polarity calibration device is equipped with a remote control, and the remote control is provided with a visual display screen, the bottom plate 1 has a built-in rechargeable battery, the bottom plate 1 has two side edges at the bottom that are far from each other fixedly connected with a support plate 2, the bottom plate 1 has a movable frame 3 movably installed at the bottom, the end of the movable frame 3 is installed with a roller 4, the roller 4 is driven by electricity, the top of the bottom plate 1 is bolted with a lifting rod 5, the top of the lifting rod 5 is fixedly connected with a calibration table 6, and the top of the calibration table 6 is rotatably connected with a movable disk 7;

[0031] The top of the movable disk 7 is bolted with a detector 8, which consists of two parts, and is calibrated using a low-range ammeter and a 1.5V or higher dry cell battery. The specific calibration process is as follows: the positive pole of the dry cell battery is connected to one end of the primary side of the current transformer, and the negative pole is connected to the other end. The ammeter is connected to the secondary side of the current transformer. The positive pole of the ammeter receives the K1 interface of the detection equipment, and the negative pole receives the K2 interface of the detection equipment. When the button switch is pressed to connect the primary circuit, observe the deflection direction of the ammeter pointer. If the pointer swings in the positive direction and swings in the reverse direction when the button switch is disconnected, it is a subtractive polarity, otherwise it is a plus polarity. Vertical plates 9 are fixedly connected to the opposite sides of the top of the movable disk 7 near the detector 8. A connector 10 is provided on one side of the two vertical plates 9, and a calibration plug 11 is installed on one side of the connector 10. Two horizontal strips 12 are fixedly connected between the two vertical plates 9. A No. 1 threaded rod 13 is rotatably connected between the two horizontal strips 12. A motor is provided at one end of the No. 1 threaded rod 13 away from the vertical plate 17. The motor is bolted to the outer side of the corresponding horizontal strip 12, and the output end is fixedly connected to the end of the No. 1 threaded rod 13. The No. 1 threaded rod 13 passes through and is threadedly connected with a movable plate 14. Both ends of the movable plate 14 pass through and are slidably connected with a limit rod 15. The limit rod 15 is fixedly connected between the two horizontal strips 12. The top and bottom of the movable plate 14 are fixedly connected with a connecting plate 16. The other end of the connecting plate 16 is fixedly connected with a vertical plate 17. Both sides of the vertical plate 17 close to the connector 10 are slidably provided with movable plates 18. The movable plate 18 is fixedly connected to the side wall of the connector 10. A rotating column 19 is rotatably provided at the bottom of the verification table 6. A signal amplifier 20 is movably installed at the bottom of the rotating column 19. The signal amplifier 20 has a built-in communication chip for remote control and verification information transmission of the device.

[0032] The two vertical plates 9 are provided with a winding groove 21 inside, and a threading hole 22 is formed through the side wall of the vertical plate 9 near the connector 10, and the threading hole 22 is communicated with the winding groove 21. A cable 23 is fixedly connected to the side of the connector 10 away from the verification plug 11, and the other end of the cable 23 penetrates the side wall of the vertical plate 9 and is connected to the detector 8. The inner groove of the winding groove 21 is rotatably connected with a winding disk 24, and the cable 23 is wound and connected with the winding disk 24. A rebound torsion spring is provided at the rotating shaft of the winding disk 24. When the moving plate 14 pushes the vertical plate 17 to move through the connecting plate 16, the vertical plate The movable plates 18 on both sides of 17 drive the connector 10 to move the position. At this time, the connector 10 drives the cable 23 to move outward from the winding groove 21 and the threading port 22. During the process, the rebound torsion spring of the winding drum 24 is curled. Then the connector 10 and the verification plug 11 are inserted into the verification port to complete all verification tasks. The connector 10 and the verification plug 11 are pulled out of the verification port and reset. At this time, the rebound torsion spring of the winding drum 24 rebounds and resets. At this time, the winding drum 24 can reel the cable 23, which is convenient for the movable use of the connector 10 and the cable 23.

[0033] A positioning plate 25 is fixedly connected to the top of the connector 10, and a camera lens 26 is installed on the side of the positioning plate 25 close to the verification plug 11. A linear motor 28 is fixedly connected to one end of the movable plate 18 close to the vertical plate 17. A movable groove 27 is opened on the side wall of the vertical plate 17 relative to the linear motor 28. The linear motor 28 is adapted to and slidably connected to the movable groove 27. A guide rail 29 is fixedly connected to the inner groove wall of the movable groove 27. The linear motor 28 is slidably sleeved on the outer side of the guide rail 29. When the two verification sockets are not in a parallel position, the connector 10 can be moved in the movable groove 27 by the linear motor 28, driving the movable plate 18 to move up and down, and the connector 10 at the end of the movable plate 18 can be adjusted in height, and then the verification plug 11 is aligned with the verification socket and inserted, so that the CT polarity verification device is easy to use.

[0034] A suction cup 39 is fixedly connected to the bottom of the support plate 2, an air port 40 is provided on the side wall of the support plate 2, a fan is provided inside the support plate 2, and the output end and input end of the fan are respectively connected to the suction cup 39 and the air port 40 through pipes. When the CT polarity verification device is moved to a suitable position, the remote control makes the mobile frame 3 rise, the support plate 2 descends to contact the ground, and then the fan is started. The fan can discharge the gas in the suction cup 39 through the air port 40, and then the suction cup 39 can be adsorbed on the ground, and then the support plate 2 can be stably fixed to the ground, so that the CT polarity verification device can stably perform verification operations in different environments.

[0035] Example 2

[0036] See also Figure 5 , further improvements were made on the basis of Example 1:

[0037] A rotating rod 30 is rotatably connected to the inner side of the bottom end of the rotating column 19, a driving motor is arranged inside the rotating column 19, a movable frame 31 is fixedly connected to the outer side of the rotating rod 30, a signal amplifier 20 is bolted to the outer side of the movable frame 31, one end of the rotating rod 30 passes through the side wall of the bottom end of the rotating column 19 and is fixedly connected to a first gear 32, a second gear 33 is meshed and connected above the first gear 32, the second gear 33 is rotatably connected to the outer wall of the rotating column 19, a motor is installed near the inner side of the bottom end of the second gear 33, and the output end of the motor is fixedly connected to the second gear 33. When the CT polarity verification device moves to different positions, in order to ensure the stability of the remote control and transmission signal of the CT polarity verification device, the signal amplifier 20 is driven to rotate through the rotating column 19, thereby The direction of signal reception and transmission is adjusted, and the second gear 33 is driven to rotate by the motor, and then the second gear 33 is engaged to drive the first gear 32 to rotate. At this time, the first gear 32 can drive the rotating rod 30 to rotate, and the movable frame 31 outside the rotating rod 30 rotates accordingly and drives the signal amplifier 20 to adjust the angle, thereby facilitating the signal amplifier 20 to adjust the direction and angle, ensuring that the remote control and data transmission signals are more stable and stronger. Here, the transmission is carried out through the first gear 32 and the second gear 33, and the characteristics of the gears can be used to ensure that the angle adjustment of the signal amplifier 20 is a multi-angle limit adjustment, so that after the angle of the signal amplifier 20 is adjusted, the signal transmission can be maintained at the corresponding angle, ensuring that the stability of the use of the signal amplifier 20 is improved.

[0038] Example 3

[0039] See also Figure 4 and Figure 7 , further improvements were made on the basis of Example 1:

[0040] A No. 2 threaded rod 34 is rotatably connected to the center position of the bottom of the bottom plate 1. A motor is provided on the top of the No. 2 threaded rod 34. The motor is installed in the inner groove at the bottom of the bottom plate 1. The output end is fixed to the top of the No. 2 threaded rod 34. The No. 2 threaded rod 34 penetrates and is threadedly connected to the movable frame 3. The bottom end of the No. 2 threaded rod 34 is fixedly connected to a limiting disk 35. A slider 36 is fixedly connected to the end of the movable frame 3 relative to the support plate 2. A slide groove 37 is provided on the side wall of the support plate 2 relative to the slider 36. The slider 36 is adapted to and slidably connected to the slide groove 37. A slide rod 38 is fixedly connected between the inner groove walls at the upper and lower ends of the slide groove 37. The slide rod 38 penetrates and is slidably connected to the slider 36. Next, when the CT polarity verification device needs to be moved, the motor is started to drive the No. 2 threaded rod 34 to rotate. At this time, the No. 2 threaded rod 34 and the moving frame 3 are threadedly rotated. At this time, the moving frame 3 slides in the slide groove 37 through the sliders 36 at both ends, and is limited by the slide rod 38, so that the moving frame 3 can move up and down through the No. 2 threaded rod 34. When the moving frame 3 moves down, the roller 4 contacts the ground, and then the entire CT polarity verification device is lifted up, so that the support plate 2 is separated from the ground. At this time, the CT polarity verification device can be moved under the action of the roller 4, and then the CT polarity verification device can be remotely controlled manually for mobile verification.

[0041] Specifically, when in use, the CT polarity calibration device is remotely controlled by a remote controller, and the roller 4 on the remote control mobile frame 3 is moved. When the device moves to a suitable position, the lifting rod 5 is started to drive the calibration table 6 to rise or fall to the corresponding calibration position, and then the movable disk 7 rotates so that one side of the connector 10 faces the calibration connector position, and then the motor is started to drive the No. 1 threaded rod 13 to rotate. When the No. 1 threaded rod 13 rotates, the movable plate 14 is limited by the limit rod 15 at this time, and then the movable plate 14 moves outside the No. 1 threaded rod 13. The movable plate 14 pushes the vertical plate 17 to move through the connecting plate 16, and the vertical plate 17 drives the connector 10 to move out of the vertical plate 9 through the movable plates 18 on both sides. At this time, the control personnel observes the connector 10 and the calibration through the camera lens 26. Check whether the plug 11 is aligned with the verification port, and then control the linear motor 28 to move on the guide rail 29 in the movable groove 27. The linear motor 28 drives the movable plate 18 to move up and down on the outside of the vertical plate 17 to adjust the position of the connector 10. After the verification plug 11 is aligned with the verification port, the motor drives the No. 1 threaded rod 13 to continue to rotate, and the vertical plate 17 can be pushed forward through the movable plate 14 and the connecting plate 16. Then the verification plug 11 of the connector 10 can be inserted into the verification port, so that the detector 8 is connected to the verification equipment, and then the verification ports connected to the two verification plugs 11 are energized respectively, and direct current is passed. At this time, the pointer of the detector 8 is deflected, and then the result generated by the detector 8 is sent to the remote control of the control staff through the signal amplifier 20.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A remote control automatic device for CT polarity calibration, comprising a base plate (1), characterized in that: The bottom of the base plate (1) is fixedly connected to a support plate (2) at two side edges away from each other, a movable frame (3) is movably mounted on the bottom of the base plate (1), a roller (4) is mounted on the end of the movable frame (3), a lifting rod (5) is bolted to the top of the base plate (1), a test bench (6) is fixedly connected to the top of the lifting rod (5), and a movable plate (7) is rotatably connected to the top of the test bench (6); The top of the movable plate (7) is bolted to a detector (8), and vertical plates (9) are fixedly connected to the top of the movable plate (7) at opposite sides close to the detector (8). A connector (10) is provided on one side of each of the two vertical plates (9), and a calibration plug (11) is installed on one side of the connector (10). Two horizontal strips (12) are fixedly connected between the two vertical plates (9), and a No. 1 threaded rod (13) is rotatably connected between the two horizontal strips (12). The No. 1 threaded rod (13) penetrates and is threadedly connected to a movable plate (14), and both ends of the movable plate (14) penetrate and are A limit rod (15) is slidably connected, the limit rod (15) is fixedly connected between the two horizontal strips (12), the top and bottom of the movable plate (14) are fixedly connected to a connecting plate (16), the other end of the connecting plate (16) is fixedly connected to a vertical plate (17), both sides of the vertical plate (17) close to the connecting head (10) are slidably provided with movable plates (18), the movable plates (18) are fixedly connected to the side walls of the connecting head (10), and a rotating column (19) is rotatably provided at the bottom of the inspection table (6), and a signal amplifier (20) is movably installed at the bottom of the rotating column (19).

2. The CT polarity calibration remote control automatic device according to claim 1, characterized in that: Both of the two vertical plates (9) are provided with a winding groove (21), and a threading hole (22) is formed through the side wall of the vertical plate (9) close to the connector (10), the threading hole (22) is communicated with the winding groove (21), and a cable (23) is fixedly connected to the side of the connector (10) away from the calibration plug (11), and the other end of the cable (23) passes through the side wall of the vertical plate (9) and is connected to the detector (8).

3. A CT polarity calibration remote control automatic device according to claim 2, characterized in that: The inner groove of the winding groove (21) is rotatably connected to a winding disk (24), the cable (23) is wound around and connected to the winding disk (24), and a rebound torsion spring is provided at the rotating shaft of the winding disk (24).

4. The CT polarity calibration remote control automatic device according to claim 1, characterized in that: A positioning plate (25) is fixedly connected to the top of the connector (10), and a camera lens (26) is installed on a side of the positioning plate (25) close to the calibration plug (11).

5. The CT polarity calibration remote control automatic device according to claim 1, characterized in that: A linear motor (28) is fixedly connected to one end of the movable plate (18) close to the vertical plate (17); a movable groove (27) is provided on a side wall of the vertical plate (17) opposite to the linear motor (28); the linear motor (28) is adapted to and slidably connected to the movable groove (27); a guide rail (29) is fixedly connected to the inner groove wall of the movable groove (27); and the linear motor (28) is slidably sleeved on the outer side of the guide rail (29).

6. The CT polarity calibration remote control automatic device according to claim 1, characterized in that: The inner side of the bottom end of the rotating column (19) is rotatably connected to a rotating rod (30), the outer side of the rotating rod (30) is fixedly connected to a movable frame (31), and the signal amplifier (20) is bolted to the outer side of the movable frame (31).

7. A remote control automatic device for CT polarity calibration according to claim 6, characterized in that: One end of the rotating rod (30) passes through the side wall of the bottom end of the rotating column (19) and is fixedly connected to a first gear (32); a second gear (33) is meshingly connected to the top of the first gear (32); the second gear (33) is rotatably connected to the outer wall of the rotating column (19); a motor is installed on the inner side of the second gear (33) near the bottom end of the rotating column (19), and the output end of the motor is fixedly connected to the second gear (33).

8. The CT polarity calibration remote control automatic device according to claim 1, characterized in that: A second threaded rod (34) is rotatably connected to the center of the bottom of the base plate (1); the second threaded rod (34) penetrates and is threadedly connected to the movable frame (3); the bottom end of the second threaded rod (34) is fixedly connected to a limiting plate (35); a sliding block (36) is fixedly connected to the end of the movable frame (3) relative to the support plate (2); a sliding groove (37) is provided on the side wall of the support plate (2) relative to the sliding block (36); the sliding block (36) is adapted to and slidably connected to the sliding groove (37).

9. A remote control automatic device for CT polarity calibration according to claim 8, characterized in that: A sliding rod (38) is fixedly connected between the inner groove walls at the upper and lower ends of the sliding groove (37), and the sliding rod (38) penetrates and is slidably connected to the sliding block (36).

10. The CT polarity calibration remote control automatic device according to claim 1, characterized in that: A suction cup (39) is fixedly connected to the bottom of the support plate (2), an air port (40) is provided on the side wall of the support plate (2), a fan is provided inside the support plate (2), and an output end and an input end of the fan are respectively connected to the suction cup (39) and the air port (40) through a pipeline.

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