A power marketing meter installation and electricity meter calibration detection equipment

Abstract

The application provides a power marketing meter calibration detection equipment for meter installation, and relates to the technical field of meter calibration detection.The equipment comprises a base, a verification instrument is fixed to the top of the front end of the base, a display end is arranged on the front end surface of the verification instrument, a button end is arranged on the side of the display end, three groups of sliding rails are fixed to the back of the base, a placing plate is slidably arranged on the sliding rails, two groups of limiting plates are symmetrically arranged on the top of the placing plate, an electric energy meter is clamped between the limiting plates, a plug-in assembly is arranged on the back of the verification instrument, the plug-in assembly comprises a vertical frame, vertical frames are fixed to the two sides of the back of the verification instrument, screw blocks are slidably arranged in the vertical frames, the electric energy meter is pushed to the plug-in position after being sent to the placing plate through the cooperation of the plug-in assembly and the positioning assembly, the alignment of the plug-in position of the electric energy meter and the meter clamp is automatically completed, the connection is automatically completed, the efficiency of detection and calibration is improved, and the equipment is convenient for quick display and use.

Description

Technical Field

[0001] This invention relates to the field of electricity meter calibration and testing technology, specifically to an electricity meter calibration and testing device for electricity marketing and installation. Background Technology

[0002] The existing three-phase multi-function meter calibration and verification device involves manually inserting the meter terminals into the meter stand's terminal block, tightening all terminal screws, starting the standard meter, and calibrating the required voltage and current source. At this time, a photoelectric pulse sensor collects the meter's energy pulses, the meter stand calculates the error accuracy data for each meter, and the calibration personnel calculate compensation data based on the error data of each meter and send it to the meter. Upon receiving the data, the meter uses the new calibration parameters to measure energy, thus completing the meter calibration process. The meter error verification process involves applying different load conditions to the meter through the left-side source and comparing the error accuracy at each load point to see if it is within the required accuracy range. After all this is completed, the screws are loosened, and the meter is removed from the meter stand, completing the entire calibration and verification process, which belongs to the core electronics industry.

[0003] Traditionally, meters are manually loaded and unloaded onto the meter rack. During connection, multiple wires need to be connected to terminals, which consumes a lot of time and leaves the meter calibration station idle. Due to the large number of wires and the need for corresponding plugs, the process is inefficient and requires a lot of manpower, making it unsuitable for use in electricity marketing demonstrations. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a power meter calibration and testing device for power marketing and installation to solve the problems mentioned in the background. The present invention has a novel structure. With the cooperation of the plug-in component and the positioning component, the power meter is pushed to the plug-in position after being placed on the placement plate, and the plug-in position of the power meter is automatically aligned with the meter clamp, and the connection is automatically completed, which improves the efficiency of testing and calibration and facilitates rapid demonstration and use.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a calibration and testing device for electricity meters used in power marketing and installation, comprising a base, a calibrator fixed to the top front end of the base, a display terminal on the front surface of the calibrator, and a button terminal on the side of the display terminal of the calibrator; three sets of slide rails fixed to the back of the base, with a placement plate slidably mounted on the slide rails; two sets of limiting plates symmetrically arranged on the top of the placement plate, with the electricity meter held between the limiting plates; and a plug-in assembly on the back of the calibrator, the plug-in assembly including a vertical frame. The base has vertical frames fixed on both sides of the back of the calibrator, and screw blocks are slidably installed inside the vertical frames. A first horizontal plate is fixed between the two screw blocks, and a second horizontal plate is fixed at the bottom of the first horizontal plate. Three sets of meter clamps are slidably installed on the outside of the second horizontal plate, and a connecting wire is fixed on the top of the meter clamps. The connecting wire is connected to the socket on the top of the calibrator. The base has a positioning component at the bottom of the plug-in assembly. The positioning component includes a fixed frame, which is fixedly connected to the base. Three sets of plug frames are slidably installed on the surface of the fixed frame, and the plug frames correspond to the positive and negative ends of the energy meter.

[0006] Furthermore, a first screw is rotatably installed inside the slide rail in the middle of the base, and the bottom of the placement plate is threaded onto the first screw. A movable frame is fixed on one side of the placement plate, and one end of the limiting plate slides along the inside of the movable frame. The limiting plate and the inside of the movable frame are connected by a spring.

[0007] Furthermore, the plug-in assembly also includes a second screw, which is rotatably mounted inside the vertical frame via a bearing, and a screw block is threadedly fitted onto the screw.

[0008] Furthermore, three sets of limiting rings are slidably sleeved on the surface of the first horizontal plate, and the connecting line slides through the limiting rings. Three sets of sliding sleeves are slidably sleeved on the surface of the first horizontal plate, and the sliding sleeves are fixedly connected to the back of the gauge clamp.

[0009] Furthermore, a vertical plate is fixed to one side of the sliding sleeve, and a first connecting rod is slidably mounted on the surface of the vertical plate. The other end of the first connecting rod is rotatably connected to a second connecting rod via a rotating shaft. The other end of the second connecting rod is rotatably mounted on the insert frame. A third spring is fixed between the top of the vertical plate and the sliding mounting seat of the first connecting rod.

[0010] Furthermore, the positioning component also includes a sliding frame, with sliding frames fixed on both sides of the top of the fixed frame, and a vertical frame slidably mounted on the top of the sliding frame. Three sets of extrusion plates are slidably sleeved on the surface of the vertical frame, and a second spring is fixed inside the sliding frame, with the other end of the second spring fixedly connected to the vertical frame.

[0011] Furthermore, telescopic plates are fixed on both sides of the top of the insert frame, and the extended ends of the telescopic plates are fixedly connected to the bottom of the extrusion plate. A sleeve frame is fixed on one side of the insert frame, and the sleeve frame is slidably fitted onto the fixed frame. A magnet plate is rotatably installed on the side of the sleeve frame through a hinge and a torsion spring, and the magnet plate is attracted to the side of the fixed frame.

[0012] Furthermore, a backing plate is provided at the bottom of the back of the calibrator, and multiple first springs are fixed at equal distances between the backing plate and the calibrator, and the backing plate is in pressure contact with the placement plate.

[0013] Furthermore, the back of the calibrator is equipped with right-angle plates on both sides of the top of the base plate via a rotating shaft and a torsion spring, and an electric push rod is fixed on the outer surface of the right-angle plates.

[0014] Furthermore, the extended end of the electric push rod is fixed with a plug, and a slot is provided on the surface of the vertical frame corresponding to the position of the plug, and the plug is slidably inserted into the slot.

[0015] The beneficial effects of this invention are:

[0016] 1. In this invention, after the placement plate reaches the insertion station, the second screw rotates, and the screw block and the second screw thread engage to drive the first and second horizontal plates to descend. The clamp descends and inserts into the insertion frame, and the connecting wire also descends. Here, the connecting wire initially passes through the limiting ring to bundle the connecting wire, avoiding messy wiring at the back end of the calibrator. The excess length of the connecting wire is bundled, and the excess length is released when the clamp descends.

[0017] 2. The energy meter of the present invention is placed on the placement plate and clamped by two limiting plates. The limiting plates are connected by springs inside the movable frame. The limiting plates are used to maintain the stability of the energy meter after it is placed on the placement plate and are adjusted according to the model of the energy meter. Similarly, the position of the insertion frame in the fixed frame can also be adjusted according to the position of the connection port of different models of energy meters. It is suitable for testing various models of energy meters. The limiting plates can also be directly fixed with bolts to ensure the stability after clamping.

[0018] 3. According to the position of the port on the electricity meter, the insertion frame is adjusted to the corresponding position. Because the insertion frame and the sliding sleeve are connected by the first and second connecting rods, the positions of the sliding sleeve and the meter clamp are also adjusted synchronously to keep the positions of the insertion frame and the meter clamp corresponding. Then the placement plate is sent into the insertion station. During this process, the first and second connecting rods rotate and fold without interfering with the movement of the placement plate. When the meter clamp is lowered, the first connecting rod on one side of the sliding sleeve slides along the vertical plate without interfering with the lifting and lowering movement of the sliding sleeve. This facilitates automatic alignment of the insertion position of the electricity meter and the meter clamp, improves connection efficiency, and avoids wiring confusion. In this part of the structure, the first connecting rod is actually connected to the vertical plate through a sliding pivot seat. It can slide up and down along the vertical plate and can rotate to maintain the connection with the second connecting rod, thereby adjusting the position of the sliding sleeve and the insertion frame to be consistent.

[0019] 4. The electric push rod of the present invention drives the vertical frame to move horizontally through the insertion of the plug and the slot. The telescopic plate extends and retracts to maintain the connection of the pressing plate on the vertical frame. As the pressing plate moves, it will press the rotating end of the meter clamp. As the meter clamp descends and passes through the insertion frame, it will automatically open the meter clamp. When it reaches the port position of the energy meter, the pressing plate moves outward with the electric push rod, releasing the pressing effect on the meter clamp. Thus, the meter clamp is clamped on the connection end of the energy meter. After the test is completed, the pressing plate also limits the rotating end of the meter clamp, releasing it from the clamping of the energy meter port, making it easy for the meter clamp to be moved out of the insertion frame. This is convenient to replace manual connection of the meter clamp and the energy meter. The meter clamp is the same as the prior art. It can be opened by pressing one side and automatically clamped after being released.

[0020] 5. Compared with the prior art, the present invention, through the cooperation of the plug-in component and the positioning component, pushes the energy meter to the plug-in position after it is put into the placement plate, and automatically completes the alignment of the energy meter plug-in position with the meter clamp, automatically completing the connection, improving the efficiency of testing and calibration, and facilitating rapid demonstration and use. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a power meter calibration and testing device for power marketing and connection according to the present invention;

[0022] Figure 2 This is a schematic diagram of the front structure of the calibration instrument for a power meter calibration and testing device for power marketing installation and connection according to the present invention;

[0023] Figure 3 This is a schematic diagram of the top structure of the base of a power meter calibration and testing device for power marketing installation and connection according to the present invention;

[0024] Figure 4 This is a schematic diagram of the positioning component structure of a power meter calibration and testing device for power marketing and connection according to the present invention;

[0025] Figure 5This is a schematic diagram showing the separation of the energy meter and the placement plate in an energy meter calibration and testing device for power marketing and connection according to the present invention;

[0026] Figure 6 This is a schematic diagram of the top structure of the fixed frame of a meter calibration and testing device for power marketing and meter connection according to the present invention;

[0027] Figure 7 This is a schematic diagram showing the connection between the second horizontal plate and the vertical frame of a power meter calibration and testing device for power marketing installation and connection according to the present invention;

[0028] Figure 8 This is a schematic diagram of the plug-in assembly structure of a power meter calibration and testing device for power marketing installation and connection according to the present invention;

[0029] Figure 9 This is a schematic diagram showing the connection between the first and second links of a meter calibration and testing device for power marketing installation and connection according to the present invention.

[0030] In the diagram: 1. Base; 11. Slide rail; 12. First screw; 14. Support plate; 15. First spring; 16. Right-angle plate; 17. Electric push rod; 18. Insert block; 2. Calibrator; 21. Button end; 22. Display end; 23. Connecting wire; 24. Meter clamp; 3. Placement plate; 31. Limiting plate; 32. Moving frame; 4. Energy meter; 5. Positioning component; 51. Fixed frame; 52. Second spring; 5 3. Sliding frame; 54. Vertical frame; 55. Extrusion plate; 56. Slot; 57. Insert frame; 58. Sleeve frame; 59. Magnet plate; 510. Telescopic plate; 6. Plug-in assembly; 61. Vertical frame; 62. Second screw; 63. Screw block; 64. First horizontal plate; 65. Limiting ring; 66. Second horizontal plate; 67. Third spring; 68. Sliding sleeve; 69. First connecting rod; 610. Second connecting rod; 611. Vertical plate. Detailed Implementation

[0031] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0032] Please see Figures 1 to 9This invention provides a technical solution: a calibration and testing device for electricity meters used in power marketing, comprising a base 1, a calibrator 2 fixed to the top front end of the base 1, a display terminal 22 provided on the front surface of the calibrator 2, and a button terminal 21 provided on the side of the display terminal 22 of the calibrator 2, three sets of slide rails 11 fixed to the back of the base 1, and a placement plate 3 slidably mounted on the slide rails 11, two sets of limiting plates 31 symmetrically provided on the top of the placement plate 3, and an electricity meter 4 clamped between the limiting plates 31, and a plug-in assembly 6 provided on the back of the calibrator 2, the plug-in assembly 6 including a vertical frame 61, the vertical frames 61 fixed on both sides of the back of the base 1 located on the back of the calibrator 2, and screw blocks 63 slidably mounted inside the vertical frames 61, a first horizontal plate 64 fixed between two screw blocks 63, and a second horizontal plate 66 fixed at the bottom of the first horizontal plate 64, three sets of meter clamps 24 slidably mounted on the outside of the second horizontal plate 66, and a connecting wire 23 fixed at the top of the meter clamps 24. The connecting line 23 is connected to the top socket of the calibrator 2. The base 1 is located at the bottom of the plug-in assembly 6 and is provided with a positioning assembly 5. The positioning assembly 5 includes a fixed frame 51, which is fixedly connected to the base 1. Three sets of plug frames 57 are slidably installed on the surface of the fixed frame 51. The plug frames 57 correspond to the positive and negative ends of the energy meter 4. In this solution, the number of meter clamps 24 can be adjusted according to actual use. The plug frames 57 on the fixed frame 51 need to be automatically added or reduced according to the number of meter clamps 24 to maintain a one-to-one relationship. When using the device, the placement plate 3 moves to the outside along the slide rail 11, and the energy meter 4 is placed on the placement plate 3. The positioning assembly 5 aligns the position of the plug frames 57 with the socket position of the energy meter 4. Then, the placement plate 3 moves to the plug-in station, and the plug-in assembly 6 drives the meter clamps 24 and connecting line 23 to descend, pass through the plug frames 57 and connect to the energy meter 4. The performance of the energy meter 4 is tested and calibrated through the display end 22 and the button end 21 of the calibrator 2.

[0033] In this embodiment, a first screw 12 is rotatably installed inside the slide rail 11 in the middle of the base 1, and the bottom of the placement plate 3 is threaded onto the first screw 12. A movable frame 32 is fixed on one side of the placement plate 3, and one end of the limiting plate 31 slides along the inside of the movable frame 32. The limiting plate 31 and the movable frame 32 are connected by a spring. The first screw 12 is driven by a small motor, which drives the placement plate 3 to slide along the three slide rails 11. The energy meter 4 is placed on the placement plate 3 and clamped by two limiting plates 31. The limiting plates 31 are connected by a spring inside the movable frame 32. Here, the limiting plates 31 are used to maintain the stability of the energy meter 4 after it is placed on the placement plate 3. The position is adjusted according to the model of the energy meter 4. Similarly, the position of the insertion frame 57 in the fixed frame 51 can also be adjusted according to the position of the connection port of different models of energy meters 4. It is suitable for testing various models of energy meters 4. The limiting plates 31 can also be directly fixed with bolts to ensure the stability after clamping.

[0034] In this embodiment, the plug-in assembly 6 further includes a second screw 62. The second screw 62 is rotatably mounted inside the vertical frame 61 via a bearing, and a screw block 63 is threaded onto the screw. Three sets of limiting rings 65 are slidably fitted onto the surface of the first horizontal plate 64, and the connecting wire 23 slides through the limiting rings 65. Three sets of sliding sleeves 68 are slidably fitted onto the surface of the first horizontal plate 64, and the sliding sleeves 68 are fixedly connected to the back of the clamp 24. A small motor that drives the second screw 62 to rotate is installed at the top of the vertical frame 61. After the placement plate 3 reaches the plug-in station, the second screw 62 rotates, and the screw block 63 and the second screw 62 are threaded together, causing the first horizontal plate 64 and the second horizontal plate 66 to descend. The clamp 24 descends and inserts into the plug frame 57, and the connecting wire 23 also descends. Here, the connecting wire 23 initially passes through the limiting rings 65 to bundle the connecting wire 23, avoiding messy wiring at the back end of the calibrator 2. The excess length of the connecting wire 23 is bundled, and the excess length is released when the clamp 24 descends.

[0035] In this embodiment, a vertical plate 611 is fixed to one side of the sliding sleeve 68, and a first connecting rod 69 is slidably mounted on the surface of the vertical plate 611. The other end of the first connecting rod 69 is rotatably connected to a second connecting rod 610 via a rotating shaft. The other end of the second connecting rod 610 is rotatably mounted on the insertion frame 57. A third spring 67 is fixed between the top of the vertical plate 611 and the sliding mounting seat of the first connecting rod 69. After the placement plate 3 moves outward with the slide rail 11, the energy meter 4 can be placed on the upper end. According to the position of the upper port of the energy meter 4, the insertion frame 57 is adjusted to the corresponding position. Because the insertion frame 57 and the sliding sleeve 68 are connected by the first connecting rod 69 and the second connecting rod 610, the positions of the sliding sleeve 68 and the meter clamp 24 will also be adjusted synchronously to ensure... The position of the insert frame 57 corresponds to that of the clamp 24. Then, the placement plate 3 is sent into the insertion station. During this process, the first link 69 and the second link 610 rotate and fold without interfering with the movement of the placement plate 3. When the clamp 24 descends, the first link 69 on one side of the sliding sleeve 68 slides along the vertical plate 611 without interfering with the lifting and lowering movement of the sliding sleeve 68. This facilitates automatic alignment of the insertion position of the energy meter 4 and the clamp 24, improving connection efficiency and preventing wiring confusion. In this part of the structure, the first link 69 is actually connected to the vertical plate 611 through a sliding pivot seat. It can slide up and down along the vertical plate 611 and can rotate to maintain its connection with the second link 610, thereby adjusting the position of the sliding sleeve 68 and the insert frame 57 to be consistent.

[0036] In this embodiment, the positioning component 5 further includes a sliding frame 53. Sliding frames 53 are fixed to both sides of the top of the fixed frame 51, and a vertical frame 54 is slidably mounted on the top of the sliding frame 53. Three sets of extrusion plates 55 are slidably sleeved on the surface of the vertical frame 54. A second spring 52 is fixed inside the sliding frame 53, and the other end of the second spring 52 is fixedly connected to the vertical frame 54. Telescopic plates 510 are fixed to both sides of the top of the insertion frame 57, and the extended ends of the telescopic plates 510 are fixedly connected to the bottom of the extrusion plates 55. A sleeve frame 58 is fixed to one side of the insertion frame 57, and the sleeve frame 58 is slidably sleeved on the fixed frame 51. A magnet plate 59 is rotatably mounted on the side of the sleeve frame 58 via a hinge and a torsion spring. The magnet plate 59 is attracted to... On the side of the fixed frame 51, a backing plate 14 is provided at the bottom of the back of the calibrator 2, and multiple first springs 15 are fixed at equal intervals between the backing plate 14 and the calibrator 2. The backing plate 14 is in contact with the placement plate 3. Right-angle plates 16 are rotatably mounted on both sides of the top of the back of the calibrator 2 via a pivot and a torsion spring. An electric push rod 17 is fixed on the outer surface of the right-angle plate 16, and an insert 18 is fixed to the extended end of the electric push rod 17. A slot 56 is provided on the surface of the vertical frame 54 corresponding to the position of the insert 18, and the insert 18 is slidably inserted into the slot 56. When the placement plate 3 moves away from the calibrator 2, the backing plate 14 moves outward by the elastic force of the first springs 15, and the right-angle plate 16 moves outward by itself and the calibrator 2. The rotating connection and torsion spring, with the outer right-angled edge flaring outwards, allow the placement plate 3 to move and be pushed into the insertion station. The placement plate 3 first contacts the abutment plate 14 and presses it backwards. During this backward movement, it gradually presses against the other side of the right-angled plate 16, causing the right-angled plate 16 to rotate in the direction perpendicular to the calibrator 2. At this position, the placement plate 3 stops moving, and the insertion block 18 of the electric push rod 17 is inserted into the slot 56. During subsequent insertion, the second screw 62 drives the clamp 24 to descend through the insertion frame 57. During this process, the electric push rod 17, through the insertion of the insertion block 18 into the slot 56, drives the vertical frame 54 to move horizontally. The telescopic plate 510 extends and retracts to maintain the vertical frame 54. The squeezing plate 55 on the 4 is connected. As the squeezing plate 55 moves, it squeezes the rotating end of the clamp 24. When the clamp 24 descends and passes through the insertion frame 57, it will automatically open. When it reaches the port of the energy meter 4, the squeezing plate 55 moves outward with the electric push rod 17, releasing the squeezing effect on the clamp 24. Thus, the clamp 24 is clamped on the connection end of the energy meter 4. After the test is completed, the squeezing plate 55 limits the rotating end of the clamp 24, releasing it from the clamping of the energy meter 4 port. This makes it easy for the clamp 24 to be removed from the insertion frame 57, which is convenient to replace manual connection of the clamp 24 and the energy meter 4. The clamp 24 is the same as the existing technology. It can be opened by squeezing one side and automatically clamped after being released.

[0037] When using the device, the placement plate 3 moves to the outside along the slide rail 11, and the energy meter 4 is placed on the placement plate 3. According to the position of the upper port of the energy meter 4, the insertion frame 57 is adjusted to the corresponding position. Because the insertion frame 57 and the sliding sleeve 68 are connected by the first connecting rod 69 and the second connecting rod 610, the positions of the sliding sleeve 68 and the meter clamp 24 are also adjusted synchronously to keep the positions of the insertion frame 57 and the meter clamp 24 corresponding. Then, the placement plate 3 is sent into the insertion station. During this process, the first connecting rod 69 and the second connecting rod 610 rotate and fold, which will not interfere with the movement of the placement plate 3. When the meter clamp 24 descends, the first connecting rod 69 on one side of the sliding sleeve 68 slides along the vertical plate 611, which will not interfere with the lifting and lowering movement of the sliding sleeve 68. This facilitates automatic alignment of the meter 4 with the clamp 24, improving connection efficiency and preventing wiring confusion. In this structure, the first connecting rod 69 is actually connected to the vertical plate 611 via a sliding pivot seat. It can slide up and down along the vertical plate 611 and rotate to maintain its connection with the second connecting rod 610, thereby adjusting the position of the sliding sleeve 68 and the insertion frame 57. Subsequently, the placement plate 3 moves to the insertion station. When the placement plate 3 moves away from the calibrator 2, the abutment plate 14 moves outward by the elastic force of the first spring 15. The right-angle plate 16, through its own rotational connection with the calibrator 2 and the torsion spring, has its outer right-angled side unfolding outward. As the placement plate 3 moves and is pushed into the insertion station, the placement plate 16... The placement plate 3 first contacts the abutment plate 14 and presses it backward. During the backward movement, it gradually presses and contacts the other side of the right-angle plate 16, causing the right-angle plate 16 to rotate in the direction of the perpendicular calibrator 2. At this position, the placement plate 3 just stops moving, and the insertion block 18 of the electric push rod 17 is also inserted into the slot 56. In the subsequent insertion process, the second screw 62 is needed to drive the clamp 24 to descend and pass through the insertion frame 57. During this process, the electric push rod 17 drives the vertical frame 54 to move horizontally through the insertion of the insertion block 18 into the slot 56. The telescopic plate 510 extends and retracts to keep the pressing plate 55 on the vertical frame 54 connected. As the pressing plate 55 moves, it will press the rotating end of the clamp 24, thereby pressing the clamp. When clamp 24 descends through insert frame 57, it will automatically open. Upon reaching the port of electricity meter 4, the squeezing plate 55 moves outward with electric push rod 17, releasing the squeezing effect on clamp 24. Thus, clamp 24 is clamped on the connection end of electricity meter 4. After the test is completed, the squeezing plate 55 again limits the rotation end of clamp 24, releasing it from clamping the port of electricity meter 4. This allows clamp 24 to be easily removed from inside insert frame 57, facilitating the replacement of manual connection between clamp 24 and electricity meter 4. Clamp 24 is the same as in the prior art, which can be opened by squeezing one side and automatically clamped after being released. The performance of electricity meter 4 is tested and calibrated through display end 22 and button end 21 of calibrator 2.

[0038] The foregoing has shown and described the basic principles and main features of the present invention and its advantages. It will be apparent to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A meter calibration and testing device for electricity marketing and meter connection, comprising a base (1), characterized in that: A calibrator (2) is fixed to the top front end of the base (1). A display end (22) is provided on the front surface of the calibrator (2), and a button end (21) is provided on the side of the display end (22) of the calibrator (2). Three sets of slide rails (11) are fixed to the back of the base (1), and a placement plate (3) is slidably installed on the slide rails (11). Two sets of limiting plates (31) are symmetrically provided on the top of the placement plate (3), and an energy meter (4) is held between the limiting plates (31). A plug-in assembly (6) is provided on the back of the calibrator (2). The plug-in assembly (6) includes a vertical frame (61). The vertical frames (61) are fixed on both sides of the back of the calibrator (2) of the base (1), and a sliding part is installed inside the vertical frame (61). Screw block (63), a first horizontal plate (64) is fixed between the two screw blocks (63), and a second horizontal plate (66) is fixed at the bottom of the first horizontal plate (64). Three sets of meter clamps (24) are slidably installed on the outside of the second horizontal plate (66), and a connecting wire (23) is fixed at the top of the meter clamps (24). The connecting wire (23) is connected to the top socket of the calibrator (2). The base (1) is located at the bottom of the plug-in assembly (6) and is provided with a positioning assembly (5). The positioning assembly (5) includes a fixing frame (51). The fixing frame (51) is fixedly connected to the base (1), and three sets of plug frames (57) are slidably installed on the surface of the fixing frame (51). The plug frames (57) correspond to the positive and negative ends of the energy meter (4). The positioning assembly (5) The frame also includes a sliding frame (53), which is fixed on both sides of the top of the fixed frame (51). A vertical frame (54) is slidably installed on the top of the sliding frame (53). Three sets of extrusion plates (55) are slidably sleeved on the surface of the vertical frame (54). A second spring (52) is fixed inside the sliding frame (53), and the other end of the second spring (52) is fixedly connected to the vertical frame (54). Telescopic plates (510) are fixed on both sides of the top of the insert frame (57), and the extended end of the telescopic plate (510) is fixedly connected to the bottom of the extrusion plate (55). A sleeve frame (58) is fixed on one side of the insert frame (57), and the sleeve frame (58) is slidably sleeved on the fixed frame (51). The side of the sleeve frame (58) is rotatably installed by a hinge and a torsion spring. A magnet plate (59) is attached to the side of a fixed frame (51). A backing plate (14) is provided at the bottom of the back of the calibrator (2). Multiple first springs (15) are fixed at equal distances between the backing plate (14) and the calibrator (2). The backing plate (14) is pressed against the placement plate (3). Right angle plates (16) are mounted on the back of the calibrator (2) on both sides of the top of the base plate via a rotating shaft and a torsion spring. An electric push rod (17) is fixed on the outer surface of the right angle plate (16). An insert block (18) is fixed at the extended end of the electric push rod (17). A slot (56) is provided on the surface of the vertical frame (54) corresponding to the position of the insert block (18). The insert block (18) is slidably inserted into the slot (56).

2. The electricity meter calibration and testing equipment for electricity marketing installation and connection as described in claim 1, characterized in that: The first screw (12) is rotatably installed inside the slide rail (11) in the middle of the base (1), and the bottom of the placement plate (3) is threaded onto the first screw (12). A movable frame (32) is fixed on one side of the placement plate (3), and one end of the limiting plate (31) slides along the inside of the movable frame (32). The limiting plate (31) and the movable frame (32) are connected by a spring.

3. The electricity meter calibration and testing equipment for electricity marketing installation and connection as described in claim 1, characterized in that: The plug-in assembly (6) also includes a second screw (62), which is rotatably mounted inside the vertical frame (61) via a bearing, and the screw block (63) is threaded onto the screw.

4. The electricity meter calibration and testing equipment for electricity marketing installation and connection according to claim 3, characterized in that: Three sets of limiting rings (65) are slidably sleeved on the surface of the first horizontal plate (64), and the connecting line (23) slides through the limiting rings (65). Three sets of sliding sleeves (68) are slidably sleeved on the surface of the first horizontal plate (64), and the sliding sleeves (68) are fixedly connected to the back of the watch clamp (24).

5. The electricity meter calibration and testing equipment for electricity marketing installation and connection according to claim 4, characterized in that: A vertical plate (611) is fixed on one side of the sliding sleeve (68), and a first connecting rod (69) is slidably mounted on the surface of the vertical plate (611). The other end of the first connecting rod (69) is rotatably connected to a second connecting rod (610) via a rotating shaft. The other end of the second connecting rod (610) is rotatably mounted on the insert frame (57). A third spring (67) is fixed between the top of the vertical plate (611) and the sliding mounting seat of the first connecting rod (69).

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