An intelligent electric meter calibration device

Abstract

The present invention belongs to the technical field of circuit detection, and specifically relates to an intelligent electricity meter calibration device, which includes a calibrator, a pressing block, and a connecting block. A pair of wires are connected to the calibrator. A positioning frame is fixedly connected to the side wall of the connecting block, and the wire passes through the positioning frame. The inside of the connecting block is a hollow structure, and adjusting plates are slidably connected to both sides of the connecting block. Clamping plates are fixedly connected to the sides of the adjusting plates that are close to each other. When calibrating an intelligent electricity meter, the connecting block can be placed on the top surface of the intelligent electricity meter, and then the first rotating cylinder is driven to rotate by means of a motor. At this time, the connecting wire can be wound around the first rotating cylinder. At this time, the connecting wire will pull the adjusting plate, so that the clamping plates on the adjusting plate clamp on the intelligent electricity meter, so that the entire device is fixed on the intelligent electricity meter. At the same time, because the moving stroke of the adjusting plate is relatively long, it can be adapted to different types of intelligent electricity meters for use.

Description

Technical Field

[0001] The invention belongs to the technical field of circuit detection, in particular to a smart meter calibration device. Background Art

[0002] The smart meter calibration device can accurately calibrate and test the smart meter to ensure that the meter's measurement is accurate. It usually has an automated detection function, which can efficiently complete the calibration work and reduce manual operation errors and time consumption. It not only improves the efficiency of meter calibration, but also improves the operational reliability of the entire power system.

[0003] A Chinese patent application CN113640735B discloses a smart meter calibration device, the key points of its technical solution are: it includes a toggle component, a clamping component, a locking component, a transmission component and a trigger component; a first wiring connector is plugged on the top of the tester; a second adapter is plugged on the top of the first adapter; and a second wiring connector is plugged on the top of the first wiring connector.

[0004] However, the above technology often has the following defects: There are many types of smart meters on the current market, and their sizes are different, such as single-phase meters and three-phase meters. Generally, the volume of three-phase meters is larger than that of single-phase meters. In the above technical solution, the side clamp is designed to be fixed on the smart meter. However, the clamping range of the side clamp is limited and cannot meet the adaptation requirements of different types of meters, which limits the flexibility of the detection process to a certain extent. For this reason, the present invention provides a smart meter calibration device. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problems is as follows: An intelligent electric meter calibration device described in the present invention includes a calibrator, a pressing block, and a connecting block. A pair of wires are connected to the calibrator; a positioning frame is fixedly connected to the side wall of the connecting block, the wire passes through the positioning frame, the inside of the connecting block is a hollow structure, and adjusting plates are slidably connected to both sides of the connecting block; clamping plates are fixedly connected to the sides of the adjusting plates close to each other, and an adjusting mechanism and a triggering mechanism for adjusting the position of the pressing block are arranged on one of the adjusting plates; a first rotating cylinder is rotatably connected to the top surface of the inner wall of the connecting block, a pair of connecting wires are fixedly connected to the side wall of the first rotating cylinder, the other ends of the connecting wires are fixedly connected to the adjusting plate, a pair of positioning rings are fixedly connected to the outer side wall of the first rotating cylinder, a motor for driving the first rotating cylinder to rotate is arranged on the top surface of the connecting block, and a rotational damper for increasing the resistance of its output end is arranged on the motor; a rectangular plate is fixedly connected to the top surface of the adjusting plate, a pair of support plates are fixedly connected to the top surface of the connecting block, and a first spring is fixedly connected between the support plate and the rectangular plate.

[0007] Preferably, the adjusting mechanism includes a moving groove opened on the bottom surface of the adjusting plate. A moving plate is hermetically slidably connected to the inner wall of the moving groove. The pressing block is arranged on the moving plate. A second spring is fixedly connected between the top surface of the moving plate and the inner wall of the moving groove. A hollow block is fixedly connected to the bottom surface of the inner wall of the connecting block. A pair of sliding plates are hermetically slidably connected to the inner wall of the hollow block. A first connecting pipe is connected between the hollow block and the moving groove. A circular hole is opened on the side of the hollow block away from the first rotating cylinder. A driving component for driving the sliding plate to move is arranged in the hollow block.

[0008] Preferably, the driving component includes a connecting column fixedly connected to the output end of the motor. A cylinder is hermetically slidably connected to the bottom surface of the connecting column. A third spring is fixedly connected between the top surface of the cylinder and the inner wall of the connecting column. A first connecting plate is fixedly connected to the side wall of the cylinder. A second connecting plate is fixedly connected to the inner wall of the first rotating cylinder. A second rotating cylinder is rotatably connected to the bottom surface of the inner wall of the connecting block. A driving plate is fixedly connected to the inner wall of the second rotating cylinder. A positioning component for positioning the first rotating cylinder is arranged in the connecting block. A hollow elastic block is fixedly connected to the outer side wall of the adjusting plate. A conduit is connected between the elastic block and the connecting column. A fourth spring is fixedly connected between the side of the sliding plate close to the second rotating cylinder and the inner wall of the hollow block. A driving wire is fixedly connected between the side of the sliding plate close to the fourth spring and the second rotating cylinder. The driving wire hermetically passes through the side wall of the hollow block.

[0009] Preferably, the positioning component includes a connecting sleeve fixedly connected to the top surface of the inner wall of the connecting block. A moving sleeve made of a magnetic material is slidably connected to the bottom surface of the connecting sleeve. A group of baffles are fixedly connected to the bottom surface of the moving sleeve. A first magnetic ring magnetically attracted to the moving sleeve is fixedly connected to the top surface of the cylinder.

[0010] Preferably, the triggering mechanism includes an air storage block arranged on the side wall of the adjusting plate. The inside of the air storage block is a hollow structure. A push plate is hermetically and slidably connected to the inner wall of the air storage block. A fifth spring is fixedly connected between the bottom surface of the push plate and the inner wall of the air storage block. An air inlet hole is opened at the bottom end of the air storage block. A through groove is opened on the adjusting plate. A round rod is fixedly connected to the inner wall of the through groove. One end of the round rod close to the connecting block is hermetically and slidably connected to a pressing block. A round tube is communicated between the round rod and the air storage block. A first control valve is arranged in the round tube.

[0011] Preferably, a round groove is opened on one side of the adjusting plate close to the connecting line. A connecting rod is fixedly connected to the side of the hollow block corresponding to the round groove. The connecting rod is hermetically and slidably connected to the inner wall of the round groove. A second connecting tube is communicated between the round groove and the air storage block.

[0012] Preferably, a limiting sleeve is arranged on the side wall of the adjusting plate. A group of sliding grooves are opened on the inner wall of the limiting sleeve. A fixing block is slidably connected to the inner wall of the sliding groove. A seventh spring is fixedly connected between the fixing block and the sliding groove. A clamping groove is opened on one side of the fixing block away from the seventh spring. The wire passes through the limiting sleeve, and a connecting ring is fixedly connected to the wire at the position of the clamping groove. The connecting ring is clamped with the clamping groove.

[0013] Preferably, an installation tube is rotatably connected to the side wall of the adjusting plate through a rotating shaft. A hollow groove is opened on the bottom surface of the installation tube. The limiting sleeve is hermetically and slidably connected to the inner wall of the hollow groove. An eighth spring is fixedly connected between the top surface of the limiting sleeve and the inner wall of the hollow groove. A fixing tube is communicated in the hollow groove. A second control valve is arranged in the fixing tube.

[0014] Preferably, a second magnetic ring is fixedly connected to the outer side wall of the installation tube close to the bottom end. The fixing block is made of a magnetic material magnetically attracted to the second magnetic ring.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1. When the smart meter needs to be calibrated in the present invention, the connecting block can be placed on the top surface of the smart meter, and then the first rotating cylinder is driven to rotate by means of a motor. At this time, the connecting line can be wound around the first rotating cylinder. At this time, the connecting line will pull the adjusting plate, so that the clamping plate on the adjusting plate clamps on the smart meter, so that the whole device is fixed on the smart meter. At the same time, since the moving stroke of the adjusting plate is relatively long, it can be adapted to different types of smart meters for use.

[0017] 2. When the position of the pressing block needs to be adjusted in the present invention, the sliding plate can be driven by the driving component to slide towards the side close to the first rotating cylinder. At this time, the sliding plate will push the gas in the hollow block, so that the gas enters the moving groove from the first connecting pipe. Then, the gas will push the moving plate to move. After the pressing block on the moving plate moves to the appropriate position, the driving component is stopped from driving the sliding plate. In this way, the pressing block can be adapted to the self-check buttons on different electric meters for use, and then the pressing block is made to press the self-check button by means of the triggering mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Figure 1 is a partial structural schematic diagram of the intelligent electric meter calibration device in the present invention;

[0020] Figure 2 is a structural schematic diagram of the calibrator in the present invention;

[0021] Figure 3 is an internal structural schematic diagram of the connecting block and the adjusting plate in the present invention;

[0022] Figure 4 is Figure 3 an enlarged view of part A in;

[0023] Figure 5 is Figure 3 an enlarged view of part B in;

[0024] Figure 6 is an internal structural schematic diagram of the installation pipe in the present invention;

[0025] Figure 7 is Figure 6 an enlarged view of part C in;

[0026] Figure 8 is a structural schematic diagram of the connecting block and the adjusting plate in the present invention.

[0027] In the figure: 1. Calibrator; 2. Conducting wire; 3. Connecting block; 4. Adjusting plate; 5. First rotating cylinder; 6. Positioning ring; 7. Connecting wire; 8. Rectangular plate; 9. Clamping plate; 10. Positioning frame; 11. Moving groove; 12. Moving plate; 13. Pressing block; 14. Connecting column; 15. Cylinder; 16. First connecting plate; 17. Second connecting plate; 18. Elastic block; 19. Duct; 20. Connecting sleeve; 21. Moving sleeve; 22. First magnetic ring; 23. Baffle; 24. Driving plate; 25. Hollow block; 26. Slide plate; 27. Driving wire; 28. Second rotating cylinder; 29. First connecting pipe; 30. Round rod; 31. Second connecting pipe; 32. Gas storage block; 33. Pushing plate; 34. Round pipe; 35. Round groove; 36. Connecting rod; 37. Limiting sleeve; 38. Fixed block; 39. Connecting ring; 40. Chute; 41. Installation pipe; 42. Second magnetic ring; 43. Hollow groove; 44. Clamping block; 45. Positioning block; 46. Connecting frame. Specific implementation mode

[0028] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation modes.

[0029] Example 1: As Figures 1 to 7 shown, an intelligent electric meter calibration device described in an embodiment of the present invention includes a calibrator 1, a pressing block 13 and a connecting block 3. A pair of conducting wires 2 are communicated on the calibrator 1; a positioning frame 10 is fixedly connected to the side wall of the connecting block 3, the conducting wire 2 passes through the positioning frame 10, the inside of the connecting block 3 is a hollow structure, and adjusting plates 4 are slidably connected to both sides of the connecting block 3; clamping plates 9 are fixedly connected to the sides of the adjusting plates 4 close to each other, and an adjusting mechanism and a triggering mechanism for adjusting the position of the pressing block 13 are arranged on one of the adjusting plates 4; a first rotating cylinder 5 is rotatably connected to the top surface of the inner wall of the connecting block 3, a pair of connecting wires 7 are fixedly connected to the side wall of the first rotating cylinder 5, the other ends of the connecting wires 7 are fixedly connected to the adjusting plates 4, a pair of positioning rings 6 are fixedly connected to the outer side wall of the first rotating cylinder 5, a motor for driving the first rotating cylinder 5 to rotate is arranged on the top surface of the connecting block 3, and a rotary damper for increasing the resistance of its output end is arranged on the motor; a rectangular plate 8 is fixedly connected to the top surface of the adjusting plate 4, a pair of support plates are fixedly connected to the top surface of the connecting block 3, and a first spring is fixedly connected between the support plates and the rectangular plate 8;

[0030] When this application needs to calibrate an intelligent electricity meter, the connecting block 3 can be placed on the top surface of the intelligent electricity meter, and then the motor is used to drive the first rotating cylinder 5 to rotate. At this time, the connecting wire 7 can be wound around the first rotating cylinder 5, and the positioning ring 6 can position the connecting wire 7. One of the connecting wires 7 is located between a pair of positioning rings 6, and the other is located on the top surface of the uppermost positioning ring 6, which can prevent the pair of connecting wires 7 from being wound together. When the connecting wire 7 is wound around the first rotating cylinder 5, the connecting wire 7 will pull the adjusting plate 4, so that the clamping plate 9 on the adjusting plate 4 clamps on the intelligent electricity meter, making the whole device fixed on the intelligent electricity meter. At the same time, since the moving stroke of the adjusting plate 4 is relatively long, it can be adapted to different types of intelligent electricity meters for use. Then, the pressing block 13 can be driven by the adjusting mechanism to move to a suitable position, and then the trigger assembly is used to trigger the pressing block 13 to press the self-check button of the intelligent electricity meter, so that the self-check button is semi-triggered, making the working circuit of the electricity meter in a state where neither the detection circuit nor the external circuit is connected. Then, the wire 2 is connected to the working circuit of the intelligent electricity meter, and the calibrator 1 is used to detect and calibrate the intelligent electricity meter, completing the circuit calibration work of the intelligent electricity meter. When the device needs to be removed from the electricity meter, only need to let the motor control the first rotating cylinder 5 to reverse, so that the connecting wire 7 is loosened from the first rotating cylinder 5. At this time, the first spring will push the rectangular plate 8, so that the rectangular plate 8 drives the adjusting plate 4 to move, so that the clamping plate 9 no longer clamps on the electricity meter, and then the device is removed from the electricity meter to continue to be used on the next electricity meter. At the same time, the clamping plate 9 can also be clamped on the calibrator 1, which is convenient to carry the whole device and the calibrator 1 together.

[0031] The adjusting mechanism includes a moving groove 11 opened on the bottom surface of the adjusting plate 4. The inner wall of the moving groove 11 is hermetically and slidably connected with a moving plate 12. The pressing block 13 is arranged on the moving plate 12. A second spring is fixedly connected between the top surface of the moving plate 12 and the inner wall of the moving groove 11. The bottom surface of the inner wall of the connecting block 3 is fixedly connected with a hollow block 25. A pair of sliding plates 26 are hermetically and slidably connected in the inner wall of the hollow block 25. A first connecting pipe 29 is communicated between the hollow block 25 and the moving groove 11. A circular hole is opened on one side of the hollow block 25 away from the first rotating cylinder 5. A driving component for driving the sliding plate 26 to move is arranged in the hollow block 25;

[0032] When the position of the pressing block 13 needs to be adjusted in this application, the sliding plate 26 can be driven by the driving component to slide towards the side close to the first rotating cylinder 5. At this time, the sliding plate 26 will push the gas in the hollow block 25, so that the gas enters the moving groove 11 from the first connecting pipe 29. Then, the gas will push the moving plate 12 to move. After the pressing block 13 on the moving plate 12 moves to the appropriate position, the driving of the sliding plate 26 by the driving component is stopped. In this way, the pressing block 13 can be adapted to the self-check buttons on different electric meters for use, and then the pressing block 13 presses the self-check button with the help of the triggering mechanism.

[0033] The driving component includes a connecting column 14 fixedly connected to the output end of the motor. The bottom surface of the connecting column 14 is hermetically and slidably connected with a cylinder 15. A third spring is fixedly connected between the top surface of the cylinder 15 and the inner wall of the connecting column 14. The side wall of the cylinder 15 is fixedly connected with a first connecting plate 16. The inner wall of the first rotating cylinder 5 is fixedly connected with a second connecting plate 17. The bottom surface of the inner wall of the connecting block 3 is rotatably connected with a second rotating cylinder 28. The inner wall of the second rotating cylinder 28 is fixedly connected with a driving plate 24. A positioning component for positioning the first rotating cylinder 5 is arranged in the connecting block 3. The outer side wall of the adjusting plate 4 is fixedly connected with a hollow elastic block 18. A conduit 19 is communicated between the elastic block 18 and the connecting column 14. A fourth spring is fixedly connected between the side of the sliding plate 26 close to the second rotating cylinder 28 and the inner wall of the hollow block 25. A driving wire 27 is fixedly connected between the side of the sliding plate 26 close to the fourth spring and the second rotating cylinder 28. The driving wire 27 hermetically penetrates through the side wall of the hollow block 25;

[0034] When the first rotating cylinder 5 needs to rotate in this application, the connecting column 14 can be driven to rotate by means of a motor. At this time, the cylinder 15 will rotate following the connecting column 14. At this time, the first connecting plate 16 will push the second connecting plate 17, causing the second connecting plate 17 to drive the first rotating cylinder 5 to rotate. During the rotation of the first rotating cylinder 5, the driving wire 27 will pull the adjusting plate 4 to move. When the clamping plate 9 clamps the electricity meter, the outer side wall of the electricity meter will squeeze the elastic block 18, causing the gas in the elastic block 18 to enter the connecting column 14 and push the cylinder 15. At this time, the cylinder 15 will move downward. When moving downward, the positioning assembly will position the first rotating cylinder 5 to prevent the adjusting plate 4 from resetting under the drive of the first spring. After the cylinder 15 moves downward, let the motor continue to drive the connecting column 14 to rotate. At this time, the first connecting plate 16 will push the driving plate 24, causing the driving plate 24 to drive the second rotating cylinder 28 to rotate, so that the driving wire 27 is wound around the second rotating cylinder 28. At this time, the sliding plate 26 will be pulled to push the gas in the hollow block 25 to enter the moving groove 11 from the first connecting pipe 29 to drive the moving plate 12 to move. After the moving plate 12 moves to a suitable position, stop the connecting column 14 from continuing to rotate. When the moving plate 12 needs to be reset, only need to pull the adjusting plate 4 so that the elastic block 18 no longer contacts the distribution box. At this time, the elastic block 18 will recover due to its own elasticity. At the same time, the third spring will pull the cylinder 15 to reset. At this time, the first connecting plate 16 will no longer contact the driving plate 24, and the sliding plate 26 will be reset under the push of the fourth spring. At this time, the driving wire 27 will drive the second rotating cylinder 28 to reset. At the same time, the first connecting plate 16 and the second connecting plate 17 will be on the same horizontal plane. At this time, the second rotating cylinder 28 can be driven to rotate by the motor to loosen the connecting wire 7, so that the adjusting plate 4 moves away from the electricity meter. Through the above mechanism, the power of the motor can be used to drive the adjusting plate 4 and the moving plate 12 to move at the same time.

[0035] The positioning assembly includes a connecting sleeve 20 fixedly connected to the top surface of the inner wall of the connecting block 3. The bottom surface of the connecting sleeve 20 is slidably connected with a moving sleeve 21 made of magnetic material. A group of baffles 23 are fixedly connected to the bottom surface of the moving sleeve 21. A first magnetic ring 22 magnetically attracted to the moving sleeve 21 is fixedly connected to the top surface of the cylinder 15. In this application, during the downward movement of the cylinder 15, the first magnetic ring 22 will drive the moving sleeve 21 to move downward. At this time, the baffle 23 will contact the second connecting plate 17. At the same time, the first connecting plate 16 will continue to contact the second connecting plate 17. Then when the cylinder 15 continues to move downward, the first connecting plate 16 will disengage from the second connecting plate 17, and the baffle 23 will continue to contact the second connecting plate 17 to position the first rotating cylinder 5, avoiding the first rotating cylinder 5 from resetting under the drive of the first spring, so that the clamping plate 9 always clamps the electricity meter.

[0036] The triggering mechanism includes an air storage block 32 provided on the side wall of the adjusting plate 4. The inside of the air storage block 32 is a hollow structure. A push plate 33 is hermetically and slidably connected to the inner wall of the air storage block 32. A fifth spring is fixedly connected between the bottom surface of the push plate 33 and the inner wall of the air storage block 32. An air inlet hole is provided at the bottom end of the air storage block 32. A through groove is provided on the adjusting plate 4. A round rod 30 is fixedly connected to the inner wall of the through groove. One end of the round rod 30 close to the connecting block 3 is hermetically and slidably connected to the pressing block 13. A round tube 34 is communicated between the round rod 30 and the air storage block 32. A first control valve is provided in the round tube 34. A sixth spring is fixedly connected between one side of the pressing block 13 close to the round tube 34 and the inner wall of the round rod 30. In this application, when it is necessary to make the pressing block 13 press the self-check button, the first control valve can be opened so that the gas in the air storage block 32 can enter the round rod 30 from the round tube 34. At this time, the fourth spring will push the push plate 33 upward, so that the gas in the air storage block 32 enters the round rod 30 from the round tube 34 to push the pressing block 13, making the pressing block 13 press the self-check button, thus achieving the effect of automatically making the pressing block 13 press the self-check button.

[0037] A round groove 35 is provided on one side of the adjusting plate 4 close to the connecting line 7. A connecting rod 36 is fixedly connected to one side of the hollow block 25 corresponding to the round groove 35. The connecting rod 36 is hermetically and slidably connected to the inner wall of the round groove 35. A second connecting pipe 31 is communicated between the round groove 35 and the air storage block 32. When the adjusting plate 4 moves in this application, the connecting rod 36 will enter the round groove 35, so that the connecting rod 36 pushes the gas in the round groove 35 to enter the air storage block 32 from the second connecting pipe 31. Then, when it is necessary to make the pressing block 13 press the self-check button, the first control valve can be opened, so that the push plate 33 pushes the gas in the air storage block 32 into the round rod, thereby pushing the pressing block 13 to press the self-check button. When the adjusting plate 4 moves away from the electric meter, the moving rod will disengage from the round groove 35. At this time, the gas in the air storage block 32 can circulate, so that the pressing block 13 is reset under the action of the sixth spring. Through the above mechanism, when the adjusting plate 4 moves, the gas can be pre-stored in the air storage block 32, and when it is necessary to make the pressing block 13 press the self-check button, the gas in the air storage block 32 can be used again.

[0038] A limiting sleeve 37 is provided on the side wall of the adjusting plate 4. A set of sliding grooves 40 are formed in the inner wall of the limiting sleeve 37. A fixing block 38 is slidably connected to the inner wall of the sliding groove 40. A seventh spring is fixedly connected between the fixing block 38 and the sliding groove 40. A clamping groove is formed on the side of the fixing block 38 away from the seventh spring. The wire 2 passes through the limiting sleeve 37, and a connecting ring 39 is fixedly connected to the wire 2 at the position of the clamping groove. The connecting ring 39 is clamped with the clamping groove; when the calibrator 1 in this application calibrates the electric meter, the wire 2 may be accidentally pulled, causing the wire 2 to detach from the electric meter, thus affecting the calibration effect of the electric meter. Through the above mechanism, the wire 2 can be limited on the limiting sleeve 37 by means of the clamping of the connecting ring 39 and the clamping groove. After the wire 2 is connected to the electric meter, it will not fall off. When the wire 2 needs to be separately stored, the fixing block 38 can be moved to separate the clamping groove from the connecting ring 39. At this time, the wire 2 can be pulled out of the limiting sleeve 37, and then the wire 2 can be removed from the calibrator 1 for separate storage and preservation.

[0039] An installation tube 41 is rotatably connected to the side wall of the adjusting plate 4 through a rotating shaft. A hollow groove 43 is formed on the bottom surface of the installation tube 41. The limiting sleeve 37 is hermetically slidably connected to the inner wall of the hollow groove 43. An eighth spring is fixedly connected between the top surface of the limiting sleeve 37 and the inner wall of the hollow groove 43. A fixing tube is communicated with the hollow groove 43. A second control valve is arranged in the fixing tube. A sixth spring is fixedly connected between the side of the pressing block 13 close to the round tube 34 and the inner wall of the round rod 30; when the wire 2 is connected to the electric meter in this application, the installation tube 41 can be rotated so that the angle of the wire 2 in the limiting sleeve 37 can be adjusted to facilitate the connection of the wire 2 to the electric meter. When the length of the wire 2 is not enough, the second control valve can be opened to allow the gas in the hollow groove 43 to flow. At this time, the wire 2 can be pulled to enable the wire 2 to be connected to the electric meter. When the wire 2 is pulled, it will drive the limiting sleeve 37 to move in the hollow groove 43. After the wire 2 is connected to the electric meter, the second control valve is closed to prevent the gas in the hollow groove 43 from flowing. At this time, the limiting sleeve 37 cannot move in the hollow groove 43. In this way, when the wire 2 is pulled, it will not detach from the electric meter due to the limiting sleeve 37.

[0040] A second magnetic ring 42 is fixedly connected to the outer side wall of the installation tube 41 near the bottom end. The fixing block 38 is made of a magnetic material that is magnetically attracted to the second magnetic ring 42; when it is necessary to take the wire 2 out of the limiting sleeve 37 in this application, the second control valve can be opened, and then the limiting sleeve 37 can be pushed upward to move upward in the hollow groove 43. When the fixing block 38 moves to the position of the second magnetic ring 42, it will be magnetically attracted by the second magnetic ring 42, causing the connecting ring 39 to disengage from the clamping groove. After that, the wire 2 can be normally taken out of the limiting sleeve 37.

[0041] Embodiment 2: As Figure 8As shown in the figure, compared with the first comparative example, another implementation of the present invention is as follows: A positioning block 45 is fixedly connected to the top surface of the adjusting plate 4. A limiting groove is formed on the top surface of the positioning block 45. An elastic clamping block 44 is clamped in the limiting groove. A connecting frame 46 is fixedly connected to the top surface of the clamping block 44. The connecting frame 46 is fixedly connected to the top surface of the connecting block 3 through an elastic member. In this application, the connecting block 3 can be placed on the calibrator 1. Then, by moving the adjusting plate 4, the clamping plate 9 can be clamped on the calibrator 1. At this time, the clamping block 44 will be aligned with the limiting groove, and then the clamping block 44 is slid into the limiting groove, so that the adjusting plate 4 is fixedly limited, so that the clamping plate 9 can always be clamped on the calibrator 1.

[0042] Working principle: By placing the connecting block 3 on the top surface of the smart meter, and then driving the first rotating cylinder 5 to rotate by means of a motor. At this time, the connecting wire 7 can be wound around the first rotating cylinder 5. The positioning ring 6 can position the connecting wire 7. One of the connecting wires 7 is located between a pair of positioning rings 6, and the other is located on the top surface of the uppermost positioning ring 6, so as to prevent a pair of connecting wires 7 from being wound together. When the connecting wire 7 is wound around the first rotating cylinder 5, the connecting wire 7 will pull the adjusting plate 4, so that the clamping plate 9 on the adjusting plate 4 is clamped on the smart meter, so that the whole device is fixed on the smart meter. At the same time, since the moving stroke of the adjusting plate 4 is relatively long, it can be adapted to different types of smart meters for use. Then, the pressing block 13 can be driven to move to a suitable position through the adjusting mechanism, and then the pressing block 13 is triggered by the triggering component to press the self-check button of the smart meter, so that the self-check button is semi-triggered, and the working circuit of the meter is in a state where neither the detection circuit nor the external circuit is connected. Then, the wire 2 is connected to the working circuit of the smart meter, and the calibrator 1 is used to detect and calibrate the smart meter, completing the circuit calibration work of the smart meter. When it is necessary to remove the device from the meter, only need to let the motor control the first rotating cylinder 5 to reverse, so that the connecting wire 7 is loosened from the first rotating cylinder 5. At this time, the first spring will push the rectangular plate 8, so that the rectangular plate 8 drives the adjusting plate 4 to move, so that the clamping plate 9 is no longer clamped on the meter, and then the device is removed from the meter to continue to be used on the next meter. At the same time, the clamping plate 9 can also be clamped on the calibrator 1, which is convenient to carry the whole device and the calibrator 1 together;

[0043] By driving the sliding plate 26 to slide towards the side close to the first rotating cylinder 5 through the driving component, at this time, the sliding plate 26 will push the gas in the hollow block 25, so that the gas enters the moving groove 11 through the first connecting pipe 29. At this time, the gas will push the moving plate 12 to move. After the pressing block 13 on the moving plate 12 moves to a suitable position, the driving component stops driving the sliding plate 26, so that the pressing block 13 can be adapted to the self-check buttons on different meters for use, and then the pressing block 13 is used to press the self-check button by means of the triggering mechanism;

[0044] Drive the connecting column 14 to rotate by means of the motor. At this time, the cylinder 15 will rotate following the connecting column 14. At this moment, the first connecting plate 16 will push the second connecting plate 17, causing the second connecting plate 17 to drive the first rotating cylinder 5 to rotate. During the rotation of the first rotating cylinder 5, the driving wire 27 will pull the adjusting plate 4 to move. When the clamping plate 9 clamps the electric meter, the outer side wall of the electric meter will squeeze the elastic block 18, causing the gas in the elastic block 18 to enter the connecting column 14 and push the cylinder 15. At this time, the cylinder 15 will move downward. When moving downward, the positioning assembly will position the first rotating cylinder 5 to prevent the adjusting plate 4 from resetting under the drive of the first spring. After the cylinder 15 moves downward, let the motor continue to drive the connecting column 14 to rotate. At this time, the first connecting plate 16 will push the driving plate 24, causing the driving plate 24 to drive the second rotating cylinder 28 to rotate, so that the driving wire 27 will be wound around the second rotating cylinder 28. At this time, the sliding plate 26 will be pulled to push the gas in the hollow block 25 to enter the moving groove 11 from the first connecting pipe 29 to drive the moving plate 12 to move. After the moving plate 12 moves to a suitable position, stop the connecting column 14 from continuing to rotate. When the moving plate 12 needs to be reset, only need to pull the adjusting plate 4 so that the elastic block 18 no longer contacts the distribution box. At this time, the elastic block 18 will recover due to its own elasticity. At the same time, the third spring will pull the cylinder 15 to reset. At this time, the first connecting plate 16 will no longer contact the driving plate 24. The sliding plate 26 will be reset under the push of the fourth spring. At this time, the driving wire 27 will drive the second rotating cylinder 28 to reset. At the same time, the first connecting plate 16 will be on the same horizontal plane as the second connecting plate 17. At this time, the second rotating cylinder 28 can be driven to rotate by the motor to loosen the connecting wire 7, so that the adjusting plate 4 moves away from the electric meter. Through the above mechanism, the power of the motor can be used to drive the adjusting plate 4 and the moving plate 12 to move at the same time; In the process of the cylinder 15 moving downward in this application, the first magnetic ring 22 will drive the moving sleeve 21 to move downward. At this time, the baffle 23 will contact the second connecting plate 17. At the same time, the first connecting plate 16 will continue to contact the second connecting plate 17. Then when the cylinder 15 continues to move downward, the first connecting plate 16 will disengage from the second connecting plate 17, and the baffle 23 will continue to contact the second connecting plate 17 to position the first rotating cylinder 5 to prevent the first rotating cylinder 5 from resetting under the drive of the first spring, so that the clamping plate 9 always clamps the electric meter;

[0045] When this application needs to make the pressing block 13 press the self-check button, the first control valve can be opened so that the gas in the gas storage block 32 can enter the round rod 30 from the round tube 34. At this time, the fourth spring will push the push plate 33 upward, so that the gas in the gas storage block 32 enters the round rod 30 from the round tube 34 to push the pressing block 13, making the pressing block 13 press the self-check button, thus achieving the effect of automatically making the pressing block 13 press the self-check button; when the adjusting plate 4 in this application moves, the connecting rod 36 will enter the round groove 35, so that the connecting rod 36 pushes the gas in the round groove 35 into the gas storage block 32 from the second connecting pipe 31. Then, when it is necessary for the pressing block 13 to press the self-check button, the first control valve can be opened so that the push plate 33 pushes the gas in the gas storage block 32 into the circle, thereby pushing the pressing block 13 to press the self-check button. When the adjusting plate 4 moves away from the electric meter, the moving rod will disengage from the round groove 35. At this time, the gas in the gas storage block 32 can circulate, so that the pressing block 13 is reset under the action of the sixth spring. Through the above mechanism, gas can be pre-stored in the gas storage block 32 when the adjusting plate 4 moves, and the gas in the gas storage block 32 can be used when it is necessary for the pressing block 13 to press the self-check button;

[0046] When the calibrator 1 in this application calibrates the electric meter, it may accidentally pull the wire 2 and cause the wire 2 to detach from the electric meter, thus affecting the calibration effect of the electric meter. Through the above mechanism, the wire 2 can be limited on the limiting sleeve 37 by means of the clamping of the connecting ring 39 and the clamping groove. After the wire 2 is connected to the electric meter, it will not fall off. When it is necessary to store the wire 2 separately, the fixed block 38 can be moved to make the clamping groove disengage from the connecting ring 39. At this time, the wire 2 can be pulled out from the limiting sleeve 37, and then the wire 2 can be removed from the calibrator 1 for separate storage; when the wire 2 is connected to the electric meter in this application, the installation pipe 41 can be rotated so that the angle of the wire 2 in the limiting sleeve 37 can be adjusted to facilitate the connection of the wire 2 to the electric meter. When the length of the wire 2 is not enough, the second control valve can be opened to allow the gas in the hollow groove 43 to circulate. At this time, the wire 2 can be pulled so that the wire 2 can be connected to the electric meter. When the wire 2 is pulled, it will drive the limiting sleeve 37 to move in the hollow groove 43. After the wire 2 is connected to the electric meter, the second control valve is closed to prevent the gas in the hollow groove 43 from circulating. At this time, the limiting sleeve 37 cannot move in the hollow groove 43. In this way, when the wire 2 is pulled, it will not detach from the electric meter due to the limiting sleeve 37.

[0047] The above front, back, left, right, up, and down are all based on the Figure 1 description drawings of the specification. Taking the perspective of the person observing as the standard, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0048] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the protection scope of the present invention.

[0049] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification is only to illustrate the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will also have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent electric meter calibration device, comprising a calibrator, a pressing block and a connecting block, wherein a pair of wires are connected to the calibrator; It is characterized in that: A positioning frame is fixedly connected to the side wall of the connecting block, the wire passes through the positioning frame, the inside of the connecting block is a hollow structure, and adjusting plates are slidably connected to both sides of the connecting block; Clamping plates are fixedly connected to the sides of the adjusting plates close to each other, and an adjusting mechanism and a triggering mechanism for adjusting the position of the pressing block are arranged on one of the adjusting plates; The top surface of the inner wall of the connecting block is rotatably connected with a first rotating cylinder, a pair of connecting lines are fixedly connected to the side wall of the first rotating cylinder, the other ends of the connecting lines are fixedly connected to the adjusting plates, a pair of positioning rings are fixedly connected to the outer side wall of the first rotating cylinder, a motor for driving the first rotating cylinder to rotate is arranged on the top surface of the connecting block, and a rotational damper for increasing the resistance of its output end is arranged on the motor; A rectangular plate is fixedly connected to the top surface of the adjusting plate, a pair of support plates are fixedly connected to the top surface of the connecting block, and a first spring is fixedly connected between the support plates and the rectangular plate; The adjusting mechanism includes a moving groove opened on the bottom surface of the adjusting plate, a moving plate is hermetically slidably connected to the inner wall of the moving groove, the pressing block is arranged on the moving plate, a second spring is fixedly connected between the top surface of the moving plate and the inner wall of the moving groove, a hollow block is fixedly connected to the bottom surface of the inner wall of the connecting block, a pair of sliding plates are hermetically slidably connected to the inner wall of the hollow block, a first connecting pipe is communicated between the hollow block and the moving groove, a round hole is opened on one side of the hollow block away from the first rotating cylinder, and a driving component for driving the sliding plate to move is arranged in the hollow block; The triggering mechanism includes an air storage block arranged on the side wall of the adjusting plate, the inside of the air storage block is a hollow structure, a push plate is hermetically slidably connected to the inner wall of the air storage block, a fifth spring is fixedly connected between the bottom surface of the push plate and the inner wall of the air storage block, an air inlet hole is opened at the bottom end of the air storage block, a through groove is opened on the adjusting plate, a round rod is fixedly connected to the inner wall of the through groove, one end of the round rod close to the connecting block is hermetically slidably connected to the pressing block, a round pipe is communicated between the round rod and the air storage block, a first control valve is arranged in the round pipe, and a sixth spring is fixedly connected between one side of the pressing block close to the round pipe and the inner wall of the round rod; 2. The intelligent electric meter calibration device according to claim 1, characterized in that: The driving component includes a connecting column fixedly connected to the output end of the motor, a cylinder is hermetically slidably connected to the bottom surface of the connecting column, a third spring is fixedly connected between the top surface of the cylinder and the inner wall of the connecting column, a first connecting plate is fixedly connected to the side wall of the cylinder, a second connecting plate is fixedly connected to the inner wall of the first rotating cylinder, a second rotating cylinder is rotatably connected to the bottom surface of the inner wall of the connecting block, a driving plate is fixedly connected to the inner wall of the second rotating cylinder, a positioning component for positioning the first rotating cylinder is arranged in the connecting block, a hollow elastic block is fixedly connected to the outer side wall of the adjusting plate, a conduit is communicated between the elastic block and the connecting column, a fourth spring is fixedly connected between one side of the sliding plate close to the second rotating cylinder and the inner wall of the hollow block, and a driving wire is fixedly connected between one side of the sliding plate close to the fourth spring and the second rotating cylinder, and the driving wire hermetically passes through the side wall of the hollow block.

3. The intelligent electric meter calibration device according to claim 2, characterized in that: The positioning component includes a connecting sleeve fixedly connected to the top surface of the inner wall of the connecting block. A moving sleeve made of magnetic material is slidably connected to the bottom surface of the connecting sleeve. A set of baffles is fixedly connected to the bottom surface of the moving sleeve. A first magnetic ring magnetically attracted to the moving sleeve is fixedly connected to the top surface of the cylinder.

4. An intelligent electric meter calibration device according to claim 1, characterized in that: A circular groove is formed on one side of the adjusting plate close to the connecting wire. A connecting rod is fixedly connected to the side of the hollow block corresponding to the circular groove. The connecting rod is hermetically slidably connected to the inner wall of the circular groove. A second connecting pipe communicates between the circular groove and the air storage block.

5. An intelligent electric meter calibration device according to claim 1, characterized in that: A limiting sleeve is arranged on the side wall of the adjusting plate. A set of sliding grooves is formed on the inner wall of the limiting sleeve. A fixing block is slidably connected to the inner wall of the sliding groove. A seventh spring is fixedly connected between the fixing block and the sliding groove. A clamping groove is formed on the side of the fixing block away from the seventh spring. The wire passes through the limiting sleeve, and a connecting ring is fixedly connected to the wire at the position of the clamping groove. The connecting ring is clamped with the clamping groove.

6. The intelligent electric meter calibration device according to claim 5, characterized in that: An installation pipe is rotatably connected to the side wall of the adjusting plate through a rotating shaft. A hollow groove is formed on the bottom surface of the installation pipe. The limiting sleeve is hermetically slidably connected to the inner wall of the hollow groove. An eighth spring is fixedly connected between the top surface of the limiting sleeve and the inner wall of the hollow groove. A fixed pipe communicates with the hollow groove, and a second control valve is arranged in the fixed pipe.

7. An intelligent electric meter calibration device according to claim 6, characterized in that: A second magnetic ring is fixedly connected to the outer side wall of the installation pipe near the bottom end. The fixing block is made of magnetic material magnetically attracted to the second magnetic ring.

8. An intelligent electric meter calibration device according to claim 7, characterized in that: A positioning block is fixedly connected to the top surface of the adjusting plate. A limiting groove is formed on the top surface of the positioning block. An elastic clamping block is clamped in the limiting groove. A connecting frame is fixedly connected to the top surface of the clamping block. The connecting frame is fixedly connected to the top surface of the connecting block through an elastic member.

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