Intelligent electric meter verification device

Abstract

The invention belongs to the technical field of circuit detection, and particularly relates to an intelligent electric meter verification device, which comprises a calibrator, a pressing block and a connecting block, and is characterized in that the calibrator is communicated with a pair of wires; a positioning frame is fixedly connected to the side wall of the connecting block, the connecting line penetrates through the positioning frame, the interior of the connecting block is of a hollow structure, adjusting plates are slidably connected to the two sides of the connecting block, and clamping plates are fixedly connected to the sides, close to each other, of the adjusting plates; when the intelligent electric meter needs to be calibrated, a connecting block can be placed on the top surface of the intelligent electric meter, then a first rotating drum is driven to rotate by means of a motor, a connecting wire can be wound on the first rotating drum at the moment, and the connecting wire can pull an adjusting plate at the moment, so that a clamping plate on the adjusting plate is clamped on the intelligent electric meter; and meanwhile, due to the fact that the moving stroke of the adjusting plate is long, the device can be suitable for different types of intelligent electric meters to be used.

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, etc.; 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: a smart meter calibration device described in the present invention comprises a calibrator, a pressing block and a connecting block, wherein a pair of conducting wires are connected to the calibrator; a positioning frame is fixedly connected to the side wall of the connecting block, the connecting wire passes through the positioning frame, the interior of the connecting block is a hollow structure, and both sides of the connecting block are slidably connected to adjusting plates; a clamping plate is fixedly connected to the side of the adjusting plates close to each other, and an adjusting mechanism and a trigger mechanism for adjusting the position of the pressing block are arranged on one of the adjusting plates; a first rotating drum 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 drum, the other end of the connecting wire is fixedly connected to the adjusting plate, a pair of positioning rings are fixedly connected to the outer side wall of the first rotating drum, a motor for driving the first rotating drum to rotate is arranged on the top surface of the connecting block, and a rotary damper for increasing resistance to 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 supporting plates are fixedly connected to the top surface of the connecting block, and a first spring is fixedly connected between the supporting plate and the rectangular plate.

[0007] Preferably, the adjustment mechanism includes a movable groove opened on the bottom surface of the adjustment plate, the inner wall of the movable groove is sealingly and slidably connected with the movable plate, the pressing block is arranged on the movable plate, a second spring is fixedly connected between the top surface of the movable plate and the inner wall of the movable groove, a hollow block is fixedly connected to the bottom surface of the inner wall of the connecting block, a pair of slides are sealingly and slidably connected to the inner wall of the hollow block, a first connecting pipe is connected between the hollow block and the movable groove, a circular hole is opened on the side of the hollow block away from the first rotating drum, and a driving component for driving the slide to move is arranged in the hollow block.

[0008] Preferably, the driving assembly includes a connecting column fixedly connected to the output end of the motor, the bottom surface of the connecting column is sealingly and slidably connected with a cylinder, a third spring is fixedly connected between the top surface of the cylinder and the inner wall of the connecting column, the side wall of the cylinder is fixedly connected with the first connecting plate, the inner wall of the first rotating cylinder is fixedly connected with the second connecting plate, the bottom surface of the inner wall of the connecting block is rotatably connected to the second rotating cylinder, the inner wall of the second rotating cylinder is fixedly connected to the driving plate, a positioning assembly for positioning the first rotating cylinder is provided in the connecting block, the outer wall of the adjusting plate is fixedly connected with a hollow elastic block, a conduit is connected between the elastic block and the connecting column, a fourth spring is fixedly connected between the side of the slide plate close to the second rotating cylinder and the inner wall of the hollow block, a driving line is fixedly connected between the side of the slide plate close to the fourth spring and the second rotating cylinder, and the driving line seals and passes through the side wall of the hollow block.

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

[0010] Preferably, the trigger mechanism includes an air storage block arranged on the side wall of the adjusting plate, the interior of the air storage block is a hollow structure, the inner wall of the air storage block is sealingly and slidably connected with a push plate, 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 provided at the bottom end of the air storage block, a through groove is provided 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 sealingly and slidably connected to the pressing block, a round tube is connected between the round rod and the air storage block, and a first control valve is provided in the round tube.

[0011] Preferably, a circular groove is provided on one side of the adjustment plate close to the connecting line, a connecting rod is fixedly connected to the side of the hollow block corresponding to the circular groove, the connecting rod is sealingly and slidingly connected to the inner wall of the circular groove, and a second connecting pipe is connected between the circular groove and the gas storage block.

[0012] Preferably, a limiting sleeve is provided on the side wall of the adjustment plate, a group of sliding grooves are opened on the inner wall of the limiting sleeve, a fixed block is slidably connected to the inner wall of the sliding groove, a seventh spring is fixedly connected between the fixed block and the sliding groove, a clamping groove is opened on the side of the fixed 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 clamping groove, and the connecting ring is clamped in the clamping groove.

[0013] Preferably, the side wall of the adjustment plate is rotatably connected to a mounting tube via a rotating shaft, a hollow groove is provided on the bottom surface of the mounting tube, the limiting sleeve is sealingly and slidingly 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 tube is connected to the hollow groove, and a second control valve is arranged in the fixed tube.

[0014] Preferably, the outer side wall of the mounting tube close to the bottom end is fixedly connected with a second magnetic ring, and the fixing block is made of a magnetic material that is 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, the connection block can be placed on the top surface of the smart meter, and then the first rotating drum is driven to rotate by a motor. At this time, the connection line can be wound around the first rotating drum. At this time, the connection line will pull the adjustment plate, so that the clamping plate on the adjustment plate is clamped on the smart meter, so that the entire device is fixed on the smart meter. At the same time, since the adjustment plate has a long moving stroke, 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, the driving assembly can drive the slide plate to slide toward the side close to the first rotating cylinder. At this time, the slide plate will push the gas in the hollow block, so that the gas enters the movable groove from the first connecting tube. At this time, the gas will push the movable plate to move. After the pressing block on the movable plate moves to the appropriate position, the driving assembly stops driving the slide plate. In this way, the pressing block can adapt to the use of the self-test buttons on different electric meters, and then the trigger mechanism is used to make the pressing block press the self-test button. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

[0022] Figure 4 yes Figure 3 A magnified image of point A;

[0023] Figure 5 yes Figure 3 A magnified view of point B;

[0024] Figure 6 It is a schematic diagram of the internal structure of the installation tube in the present invention;

[0025] Figure 7 yes Figure 6 Enlarged view of point C;

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

[0027] In the figure: 1, calibrator; 2, wire; 3, connecting block; 4, adjusting plate; 5, first rotating drum; 6, positioning ring; 7, connecting line; 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, catheter; 20, connecting sleeve; 21, moving sleeve; 22, first magnetic ring; 23, baffle; 24 , driving plate; 25, hollow block; 26, slide plate; 27, driving line; 28, second rotating drum; 29, first connecting tube; 30, round rod; 31, second connecting tube; 32, gas storage block; 33, push plate; 34, round tube; 35, round groove; 36, connecting rod; 37, limiting sleeve; 38, fixing block; 39, connecting ring; 40, slide groove; 41, mounting tube; 42, second magnetic ring; 43, hollow groove; 44, block; 45, positioning block; 46, connecting frame. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0029] Embodiment 1: Figures 1 to 7 As shown, a smart meter calibration device according to an embodiment of the present invention comprises a calibrator 1, a pressing block 13 and a connecting block 3, wherein a pair of wires 2 are connected to the calibrator 1; a positioning frame 10 is fixedly connected to the side wall of the connecting block 3, and the connecting wire 7 passes through the positioning frame 10; the interior of the connecting block 3 is a hollow structure, and both sides of the connecting block 3 are slidably connected to adjusting plates 4; the sides of the adjusting plates 4 close to each other are fixedly connected to clamping plates 9, and one of the adjusting plates 4 is provided with an adjusting mechanism and a triggering mechanism for adjusting the position of the pressing block 13; the connecting block 3 The top surface of the inner wall is rotatably connected with a first rotating drum 5, a pair of connecting wires 7 are fixedly connected to the side wall of the first rotating drum 5, the other end of the connecting wires 7 is fixedly connected to the outer wall of the first rotating drum 5, a pair of positioning rings 6 are fixedly connected, and a motor for driving the first rotating drum 5 to rotate is provided on the top surface of the connecting block 3, and a rotation damper for increasing resistance to its output end is provided on the motor; a rectangular plate 8 is fixedly connected to the top surface of the adjusting plate 4, a pair of supporting plates are fixedly connected to the top surface of the connecting block 3, and a first spring is fixedly connected between the supporting plate and the rectangular plate 8;

[0030] When the smart meter needs to be calibrated, the present application can place the connection block 3 on the top surface of the smart meter, and then use the motor to drive the first rotating drum 5 to rotate. At this time, the connecting wire 7 can be wound around the first rotating drum 5, and the positioning ring 6 can position the connecting wire 7, where one connecting wire 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. This can prevent the pair of connecting wires 7 from being entangled together. When the connecting wire 7 is wound around the first rotating drum 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 entire device is fixed on the smart meter. At the same time, since the adjusting plate 4 has a long moving stroke, it can be adapted to different types of smart meters for use. Afterwards, the pressing block 13 can be driven by the adjusting mechanism to move to a suitable position, and then with the help of the trigger The component trigger pressing block 13 presses the self-test button of the smart meter, so that the self-test button is half-triggered, so that the working circuit of the meter is in a state where neither the detection circuit nor the external circuit is connected, and 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 to complete the circuit calibration of the smart meter. When the device needs to be removed from the meter, it is only necessary to let the motor control the first rotating drum 5 to reverse so that the connecting line 7 is loosened from the first rotating drum 5. At this time, the first spring will push the rectangular plate 8, so that the rectangular plate 8 drives the adjustment plate 4 to move, so that the clamping plate 9 is no longer clamped on the meter. 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 for carrying the entire device and the calibrator 1 together.

[0031] The adjusting mechanism comprises a moving groove 11 provided on the bottom surface of the adjusting plate 4, the inner wall of the moving groove 11 is sealed 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, a hollow block 25 is fixedly connected to the bottom surface of the inner wall of the connecting block 3, a pair of slide plates 26 are sealed and slidably connected to the inner wall of the hollow block 25, a first connecting pipe 29 is connected between the hollow block 25 and the moving groove 11, a circular hole is provided on the side of the hollow block 25 away from the first rotating drum 5, and a driving component for driving the slide plate 26 to move is arranged in the hollow block 25;

[0032] When the position of the pressing block 13 needs to be adjusted, the driving assembly can drive the slide plate 26 to slide toward the side close to the first rotating drum 5. At this time, the slide plate 26 will push the gas in the hollow block 25, so that the gas enters the movable groove 11 from the first connecting tube 29. At this time, the gas will push the movable plate 12 to move. After the pressing block 13 on the movable plate 12 moves to the appropriate position, the driving assembly stops driving the slide plate 26. In this way, the pressing block 13 can adapt to the use of the self-test buttons on different electric meters, and then the trigger mechanism is used to make the pressing block 13 press the self-test button.

[0033] The driving assembly includes a connecting column 14 fixedly connected to the output end of the motor, a cylinder 15 is sealingly and slidably connected to the bottom surface of the connecting column 14, a third spring is fixedly connected between the top surface of the cylinder 15 and the inner wall of the connecting column 14, a first connecting plate 16 is fixedly connected to the side wall of the cylinder 15, a second connecting plate 17 is fixedly connected to the inner wall of the first rotating cylinder 5, a second rotating cylinder 28 is rotatably connected to the bottom surface of the inner wall of the connecting block 3, a driving plate 24 is fixedly connected to the inner wall of the second rotating cylinder 28, a positioning assembly for positioning the first rotating cylinder 5 is arranged in the connecting block 3, a hollow elastic block 18 is fixedly connected to the outer side wall of the adjusting plate 4, a conduit 19 is connected between the elastic block 18 and the connecting column 14, a fourth spring is fixedly connected between the side of the slide plate 26 close to the second rotating cylinder 28 and the inner wall of the hollow block 25, a driving line 27 is fixedly connected between the side of the slide plate 26 close to the fourth spring and the second rotating cylinder 28, and the driving line 27 seals and passes through the side wall of the hollow block 25;

[0034] When the first rotating drum 5 needs to rotate, the present application can use the motor to drive the connecting column 14 to rotate. At this time, the cylinder 15 will rotate with the connecting column 14. At this time, the first connecting plate 16 will push the second connecting plate 17, so that the second connecting plate 17 drives the first rotating drum 5 to rotate. During the rotation of the first rotating drum 5, the driving line 27 will pull the adjusting plate 4 to move. When the clamping plate 9 clamps the electric meter, the outer wall of the electric meter will squeeze the elastic block 18, so that the gas in the elastic block 18 enters the connecting column 14 to push the cylinder 15. At this time, the cylinder 15 will move downward. When moving downward, the positioning assembly will position the first rotating drum 5 to prevent the adjusting plate 4 from resetting under the drive of the first spring. After the cylinder 15 moves downward, the motor continues to drive the connecting column 14 to rotate. At this time, the first connecting plate 16 will push the driving plate 24, so that the driving plate 24 drives the second rotating drum 28 to rotate, so that the driving line 27 is wrapped around the second rotating drum 28. At this time, the sliding plate 26 will be pulled The movable plate 12 is moved to a suitable position, and the connecting column 14 is stopped to allow the connecting column 14 to continue to rotate. When the movable plate 12 needs to be reset, it is only necessary to pull the adjusting plate 4 so that the elastic block 18 is no longer in contact with the distribution box. At this time, the elastic block 18 will be restored due to its own elasticity, and the third spring will pull the cylinder 15 to reset. At this time, the first connecting plate 16 will no longer be in contact with the driving plate 24, and the sliding plate 26 will be reset under the push of the fourth spring. At this time, the driving line 27 will drive the second rotating drum 28 to reset, and the first connecting plate 16 will be in the same horizontal plane with the second connecting plate 17. At this time, the second rotating drum 28 can be driven by the motor to rotate, and the connecting line 7 can be loosened to allow the adjusting plate 4 to move to the side 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 movable 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 to a movable sleeve 21 made of magnetic material, the bottom surface of the movable sleeve 21 is fixedly connected to a group of baffles 23, and the top surface of the cylinder 15 is fixedly connected to a first magnetic ring 22 that is magnetically attracted to the movable sleeve 21; in the present application, during the downward movement of the cylinder 15, the first magnetic ring 22 will drive the movable sleeve 21 to move downward, at which time the baffle 23 will contact the second connecting plate 17, and at the same time the first connecting plate 16 will continue to contact the second connecting plate 17, and then when the cylinder 15 continues to move downward, the first connecting plate 16 is separated from the second connecting plate 17, and the baffle 23 continues to contact the second connecting plate 17, so as to position the first rotating drum 5 to prevent the first rotating drum 5 from resetting under the drive of the first spring, so that the clamping plate 9 is always clamped on the electric meter.

[0036] The trigger mechanism includes an air storage block 32 arranged on the side wall of the adjustment plate 4, the interior of the air storage block 32 is a hollow structure, the inner wall of the air storage block 32 is sealingly and slidably connected with a push plate 33, 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 adjustment 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 sealingly and slidably connected with the pressing block 13, a round tube 34 is connected between the round rod 30 and the air storage block 32, and the A first control valve is provided in the circular tube 34, and a sixth spring is fixedly connected between the side of the pressing block 13 close to the circular tube 34 and the inner wall of the round rod 30; when the pressing block 13 needs to press the self-test button, the first control valve can be opened to allow the gas in the gas storage block 32 to enter the round rod 30 from the circular tube 34. At this time, the fourth spring will push the push plate 33 to move upward, so that the gas in the gas storage block 32 enters the round rod 30 from the circular tube 34 to push the pressing block 13, so that the pressing block 13 presses the self-test button, thereby achieving the effect of automatically allowing the pressing block 13 to press the self-test button.

[0037] A circular groove 35 is provided on one side of the adjusting plate 4 close to the connecting line 7, and a connecting rod 36 is fixedly connected to the side of the hollow block 25 corresponding to the circular groove 35, and the connecting rod 36 is sealingly and slidably connected to the inner wall of the circular groove 35, and a second connecting pipe 31 is connected between the circular groove 35 and the gas storage block 32; when the adjusting plate 4 in the present application moves, the connecting rod 36 will enter the circular groove 35, so that the connecting rod 36 pushes the gas in the circular groove 35 from the second connecting pipe 31 into the gas storage block 32, and then the self-test button of the pressing block 13 is pressed when it is needed When the adjusting plate 4 moves away from the electric meter, the moving rod will be separated from the circular 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, the 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 the pressing block 13 needs to press the self-test button.

[0038] The side wall of the adjustment plate 4 is provided with a limit sleeve 37, the inner wall of the limit sleeve 37 is provided with a group of slide grooves 40, the inner wall of the slide groove 40 is slidably connected with a fixed block 38, a seventh spring is fixedly connected between the fixed block 38 and the slide groove 40, a clamping groove is provided on the side of the fixed block 38 away from the seventh spring, the wire 2 passes through the limit sleeve 37, and the wire 2 is fixedly connected with a connecting ring 39 at the clamping groove, and the connecting ring 39 is clamped with the clamping groove; when the calibrator 1 in the present application calibrates the electric meter, The wire 2 may be accidentally pulled and detached from the electric meter, thereby affecting the calibration effect of the electric meter. The above-mentioned mechanism can limit the wire 2 on the limiting sleeve 37 with the help of the connection between the connecting ring 39 and the card slot, so that the wire 2 will not fall off after being connected to the electric meter. When the wire 2 needs to be stored separately, the fixing block 38 can be moved to disengage the card slot 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.

[0039] The side wall of the adjusting plate 4 is rotatably connected with a mounting tube 41 through a rotating shaft, a hollow groove 43 is provided on the bottom surface of the mounting tube 41, the limiting sleeve 37 is sealingly and slidingly connected with 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 connected in the hollow groove 43, a second control valve is arranged in the fixing tube, and 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 conductor 2 is connected to the electric meter, the mounting tube 41 can be rotated so that the conductor in the limiting sleeve 37 is The angle of wire 2 can be adjusted to facilitate the connection between wire 2 and the electric meter. When the length of 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 to allow the wire 2 to be connected to the electric meter. When the wire 2 is pulled, the limit sleeve 37 will be driven to move in the hollow groove 43. After the connection between wire 2 and the electric meter is completed, the second control valve is closed to prevent the gas in the hollow groove 43 from circulating. At this time, the limit 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 limit sleeve 37.

[0040] The outer side wall of the mounting tube 41 near the bottom end is fixedly connected with a second magnetic ring 42, and the fixing block 38 is made of a magnetic material that is magnetically attracted to the second magnetic ring 42; when the conductor 2 is removed from the limiting sleeve 37, 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 second magnetic ring 42, it will be magnetically attracted by the second magnetic ring 42, so that the connecting ring 39 is detached from the slot, and then the conductor 2 can be removed from the limiting sleeve 37 normally.

[0041] Embodiment 2: Figure 8As shown, compared with Example 1, another implementation of the present invention is: the top surface of the adjusting plate 4 is fixedly connected with a positioning block 45, the top surface of the positioning block 45 is provided with a limiting groove, an elastic clamping block 44 is clamped in the limiting groove, the top surface of the clamping block 44 is fixedly connected with a connecting frame 46, and the connecting frame 46 is fixedly connected to the top surface of the connecting block 3 through an elastic member; the present application can place the connecting block 3 on the calibrator 1, and then the clamping plate 9 can be clamped on the calibrator 1 by moving the adjusting plate 4, at this time the clamping block 44 will be aligned with the limiting groove, and then the clamping block 44 will slide into the limiting groove, so that the adjusting plate 4 is fixedly limited, so that the clamping plate 9 can be clamped on the calibrator 1 at all times.

[0042] Working principle: by placing the connecting block 3 on the top surface of the smart meter, and then driving the first rotating drum 5 to rotate with the help of a motor, the connecting wire 7 can be wound around the first rotating drum 5, and the positioning ring 6 can position the connecting wire 7, where one connecting wire 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 that the pair of connecting wires 7 can be prevented from being entangled together. When the connecting wire 7 is wound around the first rotating drum 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 entire device is fixed on the smart meter. At the same time, since the adjusting plate 4 has a long moving stroke, it can be adapted to different types of smart meters for use. After that, the pressing block 13 can be driven by the adjusting mechanism to move to a suitable position, and then the pressing can be triggered with the help of the trigger component. Block 13 presses the self-test button of the smart meter so that the self-test button is half-triggered, so that the working circuit of the meter is in a state where neither the detection circuit nor the external circuit is connected, and 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 to complete the circuit calibration of the smart meter. When the device needs to be removed from the meter, it is only necessary to let the motor control the first rotating drum 5 to reverse so that the connecting wire 7 is loosened from the first rotating drum 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, so that the entire device and the calibrator 1 can be conveniently carried together;

[0043] The driving assembly drives the slide plate 26 to slide toward the side close to the first rotating drum 5. At this time, the slide plate 26 pushes the gas in the hollow block 25, so that the gas enters the moving groove 11 from the first connecting pipe 29. At this time, the gas pushes the moving plate 12 to move. After the pressing block 13 on the moving plate 12 moves to a suitable position, the driving assembly stops driving the slide plate 26, so that the pressing block 13 can adapt to the use of the self-test button on different electric meters, and then the trigger mechanism is used to make the pressing block 13 press the self-test button;

[0044] The motor drives the connecting column 14 to rotate, and the cylinder 15 will rotate along with the connecting column 14. At this time, the first connecting plate 16 will push the second connecting plate 17, so that the second connecting plate 17 drives the first rotating drum 5 to rotate. During the rotation of the first rotating drum 5, the driving line 27 will pull the adjusting plate 4 to move. When the clamping plate 9 clamps the electric meter, the outer wall of the electric meter will squeeze the elastic block 18, so that the gas in the elastic block 18 enters the connecting column 14 to push the cylinder 15. At this time, the cylinder 15 will move downward. When moving downward, the positioning component will position the first rotating drum 5 to prevent the adjusting plate 4 from Driven by the first spring, the cylinder 15 is reset. After the cylinder 15 moves downward, the motor continues to drive the connecting column 14 to rotate. At this time, the first connecting plate 16 pushes the driving plate 24, so that the driving plate 24 drives the second rotating cylinder 28 to rotate, so that the driving line 27 is wound around the second rotating cylinder 28. At this time, the slide plate 26 is pulled to push the gas in the hollow block 25 from the first connecting pipe 29 into the moving groove 11 to drive the moving plate 12 to move. After the moving plate 12 moves to a suitable position, the connecting column 14 stops rotating. When the moving plate 12 needs to be reset, it only needs to pull the adjusting plate 4. The elastic block 18 is no longer in contact with 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 be in contact with the driving plate 24. The slide plate 26 will reset under the push of the fourth spring. At this time, the driving line 27 will drive the second rotating drum 28 to reset. At the same time, the first connecting plate 16 will be in the same horizontal plane as the second connecting plate 17. At this time, the second rotating drum 28 can be driven by the motor to rotate, so that the connecting line 7 is loosened to allow the adjusting plate 4 to move to the side away from the electric meter. The above mechanism can be used to The power of the auxiliary motor can simultaneously drive the adjustment plate 4 and the moving plate 12 to move; in the process of the cylinder 15 moving downward, the first magnetic ring 22 will drive the moving sleeve 21 to move downward, and the baffle 23 will contact the second connecting plate 17, and the first connecting plate 16 will continue to contact the second connecting plate 17, and then when the cylinder 15 continues to move downward, the first connecting plate 16 is separated from the second connecting plate 17, and the baffle 23 continues to contact the second connecting plate 17, so as to position the first rotating drum 5, and prevent the first rotating drum 5 from being reset under the drive of the first spring, so that the clamping plate 9 is always clamped on the electric meter;

[0045] When the pressing block 13 needs to press the self-test button, the first control valve can be opened to allow the gas in the gas storage block 32 to enter the round rod 30 from the round tube 34. At this time, the fourth spring will push the push plate 33 to move 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, so that the pressing block 13 presses the self-test button, thereby achieving the effect of automatically allowing the pressing block 13 to press the self-test button; when the adjusting plate 4 in the present application moves, the connecting rod 36 will enter the circular groove 35, so that the connecting rod 36 pushes the gas in the circular groove 35 from the second connecting pipe 31 into the gas storage block The first control valve can be opened when the push plate 33 pushes the gas in the gas storage block 32 into the circle, thereby pushing the push block 13 to press the self-test button. When the adjustment plate 4 moves away from the electric meter, the moving rod will be separated from the circular groove 35. At this time, the gas in the gas storage block 32 can circulate, so that the push block 13 is reset under the action of the sixth spring. Through the above mechanism, the gas can be pre-stored in the gas storage block 32 when the adjustment plate 4 moves, and the gas in the gas storage block 32 can be used when the push block 13 presses the self-test button.

[0046] When the calibrator 1 in the present application is calibrating the electric meter, the wire 2 may be accidentally pulled, causing the wire 2 to be detached from the electric meter, thereby affecting the calibration effect of the electric meter. The above-mentioned mechanism can limit the wire 2 on the limiting sleeve 37 with the help of the connecting ring 39 and the card slot, so that the wire 2 will not fall off after being connected to the electric meter. When the wire 2 needs to be stored separately, the fixing block 38 can be moved to disengage the card slot 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. When the wire 2 is connected to the electric meter, the mounting plate 38 can be rotated. The tube 41 allows the angle of the wire 2 in the limit sleeve 37 to be adjusted to facilitate the connection of the wire 2 to the electric meter. When the wire 2 is not long 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 to allow the wire 2 to be connected to the electric meter. When the wire 2 is pulled, the limit sleeve 37 will be driven to move in the hollow groove 43. After the connection between the wire 2 and the electric meter is completed, the second control valve is closed to prevent the gas in the hollow groove 43 from circulating. At this time, the limit 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 limit sleeve 37.

[0047] The above-mentioned front, back, left, right, top and bottom are all based on the figures in the specification. Figure 1 As a benchmark, according to the person's observation perspective, 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 terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying 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 understood as limiting the scope of protection of the present invention.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A smart meter calibration device, comprising a calibrator (1), a pressing block (13) and a connecting block (3), wherein the calibrator (1) is connected to a pair of wires (2); Features: The side wall of the connection block (3) is fixedly connected to a positioning frame (10), the connection line (7) passes through the positioning frame (10), the interior of the connection block (3) is a hollow structure, and both sides of the connection block (3) are slidably connected to adjustment plates (4); The sides of the adjustment plates (4) close to each other are fixedly connected with a clamping plate (9), and one of the adjustment plates (4) is provided with an adjustment mechanism and a trigger mechanism for adjusting the position of the pressing block (13); The top surface of the inner wall of the connecting block (3) is rotatably connected to a first rotating drum (5); a pair of connecting wires (7) are fixedly connected to the side wall of the first rotating drum (5); the other end of the connecting wire (7) is fixedly connected to the adjustment plate (4); a pair of positioning rings (6) are fixedly connected to the outer wall of the first rotating drum (5); a motor for driving the first rotating drum (5) to rotate is arranged on the top surface of the connecting block (3); and a rotation damper for increasing resistance at its output end is arranged on the motor; The top surface of the adjustment plate (4) is fixedly connected to a rectangular plate (8), the top surface of the connection block (3) is fixedly connected to a pair of support plates, and a first spring is fixedly connected between the support plate and the rectangular plate (8).

2. The smart meter calibration device according to claim 1, characterized in that: The adjustment mechanism comprises a movable groove (11) provided on the bottom surface of the adjustment plate (4); the inner wall of the movable groove (11) is sealingly and slidably connected to the movable plate (12); the pressing block (13) is arranged on the movable plate (12); a second spring is fixedly connected between the top surface of the movable plate (12) and the inner wall of the movable groove (11); a hollow block (25) is fixedly connected to the bottom surface of the inner wall of the connecting block (3); a pair of slide plates (26) are sealingly and slidably connected to the inner wall of the hollow block (25); a first connecting pipe (29) is connected between the hollow block (25) and the movable groove (11); a circular hole is provided on a side of the hollow block (25) away from the first rotating drum (5); and a driving component for driving the slide plate (26) to move is arranged in the hollow block (25).

3. The smart meter calibration device according to claim 2, characterized in that: The driving assembly comprises a connecting column (14) fixedly connected to the output end of the motor, the bottom surface of the connecting column (14) is sealingly and slidably connected to 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), a first connecting plate (16) is fixedly connected to the side wall of the cylinder (15), a second connecting plate (17) is fixedly connected to the inner wall of the first rotating cylinder (5), a second rotating cylinder (28) is rotatably connected to the bottom surface of the inner wall of the connecting block (3), and a driving plate (24) is fixedly connected to the inner wall of the second rotating cylinder (28). A positioning assembly for positioning the first rotating cylinder (5) is arranged inside the connecting block (3); a hollow elastic block (18) is fixedly connected to the outer wall of the adjusting plate (4); a conduit (19) is connected 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 line (27) is fixedly connected between the side of the sliding plate (26) close to the fourth spring and the second rotating cylinder (28); and the driving line (27) seals and passes through the side wall of the hollow block (25).

4. The smart meter calibration device according to claim 3, characterized in that: The positioning assembly comprises 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 to a moving sleeve (21) made of a magnetic material; the bottom surface of the moving sleeve (21) is fixedly connected to a group of baffles (23); and the top surface of the cylinder (15) is fixedly connected to a first magnetic ring (22) magnetically attracted to the moving sleeve (21).

5. The smart meter calibration device according to claim 2, characterized in that: The trigger mechanism comprises an air storage block (32) arranged on the side wall of the adjustment plate (4); the interior of the air storage block (32) is a hollow structure; the inner wall of the air storage block (32) is sealingly and slidably connected to a push plate (33); 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 adjustment 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 sealingly and slidably connected to the pressing block (13); a round tube (34) is connected 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).

6. The smart meter calibration device according to claim 5, characterized in that: A circular groove (35) is provided on one side of the adjustment plate (4) close to the connecting line (7); a connecting rod (36) is fixedly connected to the side of the hollow block (25) corresponding to the circular groove (35); the connecting rod (36) is sealingly and slidably connected to the inner wall of the circular groove (35); and a second connecting pipe (31) is connected between the circular groove (35) and the gas storage block (32).

7. The smart meter calibration device according to claim 1, characterized in that: The side wall of the adjustment plate (4) is provided with a limit sleeve (37), the inner wall of the limit sleeve (37) is provided with a group of slide grooves (40), the inner wall of the slide groove (40) is slidably connected with a fixed block (38), a seventh spring is fixedly connected between the fixed block (38) and the slide groove (40), a clamping groove is provided on a side of the fixed block (38) away from the seventh spring, the wire (2) passes through the limit sleeve (37), and the wire (2) is fixedly connected with a connecting ring (39) at the clamping groove, and the connecting ring (39) is clamped with the clamping groove.

8. The smart meter calibration device according to claim 7, characterized in that: The side wall of the adjustment plate (4) is rotatably connected to a mounting tube (41) via a rotating shaft; a hollow groove (43) is provided on the bottom surface of the mounting tube (41); the limiting sleeve (37) is sealingly and 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 fixed tube is connected inside the hollow groove (43); a second control valve is arranged inside the fixed tube.

9. The smart meter calibration device according to claim 8, characterized in that: The outer side wall of the mounting tube (41) close to the bottom end is fixedly connected with a second magnetic ring (42), and the fixing block (38) is made of a magnetic material that is magnetically attracted to the second magnetic ring (42).

10. The smart meter calibration device according to claim 9, characterized in that: The top surface of the adjustment plate (4) is fixedly connected to a positioning block (45), the top surface of the positioning block (45) is provided with a limiting groove, an elastic clamping block (44) is clamped in the limiting groove, the top surface of the clamping block (44) is fixedly connected to a connecting frame (46), and the connecting frame (46) is fixedly connected to the top surface of the connecting block (3) via an elastic member.

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