Intelligent electric energy meter calibration device

Abstract

The utility model discloses an intelligent electric energy meter calibration device, which belongs to the technical field of electric energy meter calibration, and comprises a calibration source, a digital millisecond instrument, an alternating current / direct current signal conversion instrument, a terminal and a tachometer, and the calibration source, the digital millisecond instrument and the tachometer are all electrically connected with the terminal. A direct current signal output end of the alternating current and direct current signal conversion instrument is connected with a direct current signal input end of the digital millisecond instrument, a substrate is arranged on the calibration source, a first clamping assembly for clamping an electric energy meter to be tested is arranged above the substrate, a second clamping assembly for clamping a tachometer is arranged above the first clamping assembly, a moving frame is arranged on the substrate in a sliding mode, and the moving frame is connected with the digital millisecond instrument. A plurality of clamping grooves are formed in the movable frame, the output end of the calibration source, the output end of the digital millisecond instrument and the alternating current output end of the alternating current and direct current signal conversion instrument are connected with the corresponding number of data lines respectively, the other ends of the data lines are clamped in the clamping grooves, the data lines can be rapidly and accurately installed, efficiency is improved, and the risk of equipment damage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electric energy meter calibration, and more specifically to an intelligent electric energy meter calibration device. Background Art

[0002] At present, during the calibration of the energy meter, the staff uses a handheld infrared tachometer to aim at the pulse light of the energy meter to be tested, and uses the infrared tachometer to record the number of flashes of the pulse light within a set time period to achieve calibration. This method requires ensuring that the infrared signal of the tachometer accurately falls on the pulse light within a period of time, and that the vertical and horizontal distances between the tachometer and the energy meter are stable, so that the infrared tachometer can accurately obtain the light signal emitted when the pulse light flashes, thereby recording the number of flashes of the pulse light.

[0003] Chinese patent application number CN202122841240.2 discloses an intelligent electric energy meter calibration device, including a digital millisecond meter, a calibration source and a tachometer connected to a computer respectively. The tachometer is fixed in the upper space of the calibration platform by a tachometer clamp. The upper surface of the calibration platform is provided with an electric energy meter clamp and a column, and the tachometer clamp is movably connected to the column. The computer summarizes the number of flashes and time data of the pulse lamp in the calibration period, and the horizontal position of the handheld infrared tachometer is fixed by the clamp on the calibration platform. The electric energy meter is fixed by the clamp on the calibration platform, and the horizontal position of the electric energy meter is adjusted within a certain range. The electric energy meter clamp is used to realize the position alignment of the infrared tachometer and the pulse lamp, which frees up manpower and improves the calibration accuracy.

[0004] When the above scheme is implemented, the calibration source and the digital millisecond instrument need to be connected to the electric energy meter through a data cable before each detection of the electric energy meter. Since there are many data cables, each installation takes a certain amount of time, and a long installation has a certain risk of error, resulting in equipment damage. A solution to the above problem is proposed below. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a smart electric energy meter calibration device, which can realize fast and accurate installation of data lines, improve efficiency and reduce the risk of equipment damage.

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] A smart electric energy meter calibration device comprises a calibration source, a digital millisecond meter, an AC / DC signal converter, a terminal and a tachometer, wherein the calibration source, the digital millisecond meter and the tachometer are all electrically connected to the terminal, the DC signal output end of the AC / DC signal converter is connected to the DC signal input end of the digital millisecond meter, a substrate is arranged on the calibration source, a first clamping assembly for clamping the electric energy meter to be tested is arranged above the substrate, a second clamping assembly for clamping the tachometer and adjusting the vertical distance between the tachometer and the electric energy meter to be tested is arranged above the first clamping assembly, a mobile frame is slidably arranged on the substrate, a plurality of card slots are installed on the mobile frame, the output end of the calibration source, the output end of the digital millisecond meter and the AC output end of the AC / DC signal converter are respectively connected to a corresponding number of data lines, and the other end of the data line is carded in the card slot.

[0008] Preferably, a driving device for driving the mobile frame to move is installed on the base plate, and the driving device includes a driving frame, a driving cylinder and a pressure stabilizing rod. The driving frame is installed on the base plate, and the driving frame and the mobile frame are parallel to each other. The pressure stabilizing rod is fixed on one side of the mobile frame, and the other end of the pressure stabilizing rod passes through the driving frame and slides together. The driving cylinder is arranged on the base plate, and the output end of the driving cylinder is fixedly connected to one end of the mobile frame.

[0009] Preferably, a plurality of movable plates are slidably arranged on the movable frame, and the card slots are provided on corresponding movable plates.

[0010] Preferably, the open end of the first clamping assembly faces the movable frame, and the first clamping assembly includes an L-shaped fixed clamping plate and a movable clamping plate, the fixed clamping plate is fixed on the base plate, the movable clamping plate is slidably arranged on the base plate, a spring is provided on one side of the movable clamping plate, and the other end of the spring is fixedly connected to the base plate.

[0011] Preferably, the second clamping assembly includes a support rod, a first ring, a sliding rod, a second ring and a clamping frame, the support rod is vertically arranged on the base plate, the first ring is slidably mounted and slides on the support rod, and the first ring and the support rod are rotatably matched, the sliding rod is horizontally arranged and one end is fixed on the first ring, the second ring is mounted and slides on the sliding rod, and the clamping frame is used to install a tachometer, and the clamping frame is fixedly connected to the second ring.

[0012] Preferably, the first ring, the second ring and the movable plate are respectively provided with bolts which are threadedly matched and play a fixing role.

[0013] Compared with the prior art, the advantages of the present invention are:

[0014] 1. This solution inserts one end of the data cable connecting the output end of the calibration source, the output end of the digital millisecond meter and the AC output end of the AC / DC signal converter into the card slot on the mobile frame. The movement of the mobile frame can simultaneously drive all the data cables to move and can be simultaneously inserted into the corresponding ports of the electric energy meter to be tested, thereby ensuring efficiency, preventing installation errors, and ensuring safety.

[0015] Second, the position of each data line can be adjusted by moving the moving plate to adapt to different types of electric energy meters to be tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the first clamping assembly of the utility model;

[0018] Figure 3 It is a structural schematic diagram of the driving device of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the second clamping assembly of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the tachometer and the clamping frame of the utility model.

[0021] Description of the numbers in the figure:

[0022] 1. Calibration source; 2. Digital millisecond meter; 3. AC / DC signal converter; 4. Terminal; 5. Base plate; 6. First clamping assembly; 7. Second clamping assembly; 8. Moving frame; 9. Card slot; 10. Data line; 11. Driving device; 12. Driving frame; 13. Driving cylinder; 14. Pressure stabilizing rod; 15. Moving plate; 16. Spring; 17. Fixed clamping plate; 18. Moving clamping plate; 19. Support rod; 20. First ring; 21. Sliding rod; 22. Second ring; 23. Card holder; 24. Bolt; 25. Electric energy meter to be tested; 26. Tachometer. DETAILED DESCRIPTION

[0023] Embodiment 1:

[0024] See also Figure 1-5A smart electric energy meter calibration device includes a calibration source 1, a digital millisecond meter 2, an AC / DC signal converter 3, a terminal 4 and a tachometer 26, the AC / DC signal converter is installed on the top of the calibration source 1, and the digital millisecond meter 2 is installed on the top of the AC / DC signal converter 3; and the DC signal output end of the AC / DC signal converter 3 is connected to the DC signal input end of the digital millisecond meter 2, the terminal 4 is a computer, and the terminal 4 is installed on the top of the digital millisecond meter 2, and the calibration source 1, the digital millisecond meter 2 and the tachometer 26 are all electrically connected to the terminal 4 (not shown in the figure).

[0025] A substrate 5 is provided on the calibration source 1, and a first clamping assembly 6 for clamping the electric energy meter 25 to be tested is provided above the substrate 5. The first clamping assembly 6 includes an L-shaped fixed clamping plate 17 and a straight plate-shaped movable clamping plate 18. The fixed clamping plate 17 is fixed on the substrate 5, and the movable clamping plate 18 is slidably arranged on the substrate 5. A spring 16 is provided on one side of the movable clamping plate 18, and the other end of the spring 16 is fixedly connected to the substrate 5.

[0026] A second clamping assembly 7 is provided above the first clamping assembly 6 for clamping the tachometer 26 and adjusting the vertical distance and corresponding position between the tachometer 26 and the electric energy meter 25 to be tested. The second clamping assembly 7 includes a support rod 19, a first ring 20, a slide bar 21, a second ring 22 and a clamping frame 23. The support rod 19 is vertically arranged on the substrate 5, the first ring 20 is slidably sleeved and slides on the support rod 19, and the first ring 20 and the support rod 19 are rotatably matched, and the slide bar 21 is horizontally arranged and one end is fixed on the first ring 20. The second ring 22 is sleeved and slid on the slide bar 21, the clamping frame 23 and the second ring 22 are fixedly connected, the tachometer 26 is installed inside the clamping frame 23, the clamping frame 23 is a box body, and the bottom of the clamping frame 23 is hollowed out for the tachometer 26 to detect the electric energy meter 25 to be tested, the first ring 20 and the second ring 22 are penetrated and threaded with bolts 24, one end of the bolt 24 is respectively in contact with the corresponding support rod 19 and the slide bar 21 for fixing the position of the first ring 20 and the second ring 22.

[0027] A mobile frame 8 is slidably arranged on the base plate 5, and the mobile frame 8 corresponds to the open end of the first clamping assembly 6. A plurality of mobile plates 15 are slidably arranged on the mobile frame 8, and the mobile plate 15 and the mobile frame 8 are slidably matched through a slide rail and a slide groove. Bolts 24 are penetrated and threadedly matched on the mobile plate 15 to fix the position between the mobile plate 15 and the mobile frame 8. A card slot 9 is opened on the mobile plate 15, and a plurality of card slots 9 are installed on the mobile frame 8. The output end of the calibration source 1, the output end of the digital millisecond meter 2 and the AC output end of the AC / DC signal converter 3 are respectively connected to a corresponding number of data cables 10, and the other end of the data cable 10 is carded in the card slot 9.

[0028] A driving device 11 for driving the mobile frame 8 to move is installed on the base plate 5. The driving device 11 includes a driving frame 12, a driving cylinder 13 and a stabilizing rod 14. The driving frame 12 is installed on the base plate 5, and the driving frame 12 and the mobile frame 8 are parallel to each other. The stabilizing rod 14 is fixed on one side of the mobile frame 8, and the other end of the stabilizing rod 14 passes through the driving frame 12 and slides together. The driving cylinder 13 is arranged on the base plate 5, and the output end of the driving cylinder 13 is fixedly connected to one end of the mobile frame 8.

[0029] Working principle:

[0030] Pull the movable clamping plate 18 to place the electric energy meter 25 to be tested between the fixed clamping plate 17 and the movable clamping plate 18. When the movable clamping plate 18 is released, the movable clamping plate 18 will automatically reset under the action of the spring 16, thereby clamping the electric energy meter 25 to be tested.

[0031] By loosening the two bolts 24 on the first ring 20 and the second ring 22, the height of the first ring 20 on the support rod 19 can be adjusted to adjust the distance between the tachometer 26 and the electric energy meter 25 to be tested, the angle of the first ring 20 on the support rod 19 can be adjusted to adjust the horizontal position of the tachometer 26 and the electric energy meter 25 to be tested, and the position of the second ring 22 on the slide bar 21 can be adjusted to adjust the vertical position of the tachometer 26 and the electric energy meter 25 to be tested, so as to ensure that the tachometer 26 can always correspond to the electric energy meter 25 to be tested, thereby ensuring the accuracy of the detection.

[0032] Loosen the bolts 24 on the movable plate 15 to drive the movable plate 15 to move. The movement of the movable plate 15 will drive the corresponding data line 10 port to move, so that the data line 10 port and the port of the electric energy meter 25 to be tested are matched, which is suitable for different models of electric energy meters 25 to be tested.

[0033] When the cylinder is started, the cylinder will push the movable frame 8 to move, and the movable frame 8 will drive the movable plate 15 to move, and the movable plate 15 will drive all the data line 10 ports to move, so that the data line 10 ports are simultaneously inserted into the ports of the electric energy meters 25 to be tested. Since the models of the electric energy meters 25 to be tested in the same batch are the same, the positions of the tachometer 26 and the movable plate 15 can be adjusted once and can be applied to the electric energy meters 25 to be tested used in the same batch, without having to adjust each time they are used, thereby ensuring efficiency.

Claims

1. A smart electric energy meter calibration device, characterized in that: The device comprises a calibration source (1), a digital millisecond meter (2), an AC / DC signal converter (3), a terminal (4) and a tachometer (26); the calibration source (1), the digital millisecond meter (2) and the tachometer (26) are all electrically connected to the terminal (4); the DC signal output end of the AC / DC signal converter (3) is connected to the DC signal input end of the digital millisecond meter (2); a substrate (5) is arranged on the calibration source (1); a first clamping component (6) for clamping the electric energy meter (25) to be tested is arranged above the substrate (5); the first clamping component (6) is A second clamping assembly (7) is arranged above the holding assembly (6) for clamping the tachometer (26) and adjusting the vertical distance between the tachometer (26) and the electric energy meter (25) to be measured. A movable frame (8) is slidably arranged on the substrate (5). A plurality of card slots (9) are installed on the movable frame (8). The output end of the calibration source (1), the output end of the digital millisecond meter (2) and the AC output end of the AC / DC signal converter (3) are respectively connected to a corresponding number of data lines (10), and the other end of the data line (10) is clamped in the card slot (9).

2. The smart energy meter calibration device according to claim 1, characterized in that: A driving device (11) for driving the moving frame (8) to move is installed on the base plate (5), and the driving device (11) comprises a driving frame (12), a driving cylinder (13) and a stabilizing rod (14). The driving frame (12) is installed on the base plate (5), and the driving frame (12) and the moving frame (8) are parallel to each other. The stabilizing rod (14) is fixed on one side of the moving frame (8), and the other end of the stabilizing rod (14) passes through the driving frame (12) and is slidably matched. The driving cylinder (13) is arranged on the base plate (5), and the output end of the driving cylinder (13) is fixedly connected to one end of the moving frame (8).

3. The smart electric energy meter calibration device according to claim 1, characterized in that: A plurality of movable plates (15) are slidably arranged on the movable frame (8), and the card slots (9) are arranged on corresponding movable plates (15).

4. The smart energy meter calibration device according to claim 1, characterized in that: The open end of the first clamping assembly (6) faces the movable frame (8), and the first clamping assembly (6) comprises an L-shaped fixed clamping plate (17) and a movable clamping plate (18), wherein the fixed clamping plate (17) is fixed on the base plate (5), and the movable clamping plate (18) is slidably arranged on the base plate (5), and a spring (16) is arranged on one side of the movable clamping plate (18), and the other end of the spring (16) is fixedly connected to the base plate (5).

5. The smart electric energy meter calibration device according to claim 3, characterized in that: The second clamping assembly (7) comprises a support rod (19), a first sleeve (20), a sliding rod (21), a second sleeve (22) and a clamping frame (23); the support rod (19) is vertically arranged on the base plate (5); the first sleeve (20) is slidably mounted and slides on the support rod (19); the first sleeve (20) and the support rod (19) are rotationally matched; the sliding rod (21) is horizontally arranged and one end is fixed on the first sleeve (20); the second sleeve (22) is sleeved and slides on the sliding rod (21); the clamping frame (23) is used for installing a tachometer (26); the clamping frame (23) and the second sleeve (22) are fixedly connected.

6. The smart electric energy meter calibration device according to claim 5, characterized in that: The first collar (20), the second collar (22) and the movable plate (15) are respectively provided with bolts (24) which are threadedly matched and play a fixing role.

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