An electric energy meter withstand voltage test tool

Abstract

The application discloses an electric energy meter voltage resistance test tool, and relates to the field of electric energy meter voltage resistance test technology, which comprises a detection table and a detection device, a plurality of electric energy meters are arranged in the detection table, the detection device is used for detecting the electric energy meters, a mounting piece is arranged between the electric energy meter and the detection table, the electric energy meter and the mounting piece are detachably arranged, a connecting rod is arranged at the lower end of the electric energy meter, the connecting rod and the electric energy meter are detachably arranged, a connecting barrel is fixedly arranged at the end of the connecting rod away from the electric energy meter, a connecting wire is arranged in the connecting barrel, the connecting wire and the connecting barrel are detachably arranged, a positioning piece is arranged in the detection table, the positioning piece is connected with the plurality of connecting wires, a clamping piece is arranged in the connecting barrel, the clamping piece is used for fixing the connecting wire, and the detection device is arranged at the lower end of the detection table. The application has the effect of improving the electric energy meter voltage resistance test efficiency.

Description

Technical Field

[0001] This application relates to the field of electricity meter withstand voltage testing technology, and in particular to an electricity meter withstand voltage testing fixture. Background Technology

[0002] Currently, whether an electricity meter can meet the usage standards after assembly requires a high voltage withstand test. First, a high voltage is applied to the single-phase electricity meter for a period of time, and then the single-phase electricity meter is tested to see if it is intact. If it can withstand the national standard indicators, it is considered to have passed the voltage withstand test.

[0003] Traditional electricity meter withstand voltage testing mainly uses a probe test method. The test device's detection lead is connected to the weak electronic terminal of the electricity meter, and then the withstand voltage test is performed. After the test is completed, the detection lead is disconnected from the electricity meter and connected to the weak electronic terminal of another electricity meter. This process is repeated to complete the withstand voltage test of all electricity meters.

[0004] Regarding the aforementioned technologies, when a test of an electricity meter is completed, the test wires and the electricity meter need to be manually removed. There are safety hazards in the removal process, and it takes a lot of time to remove and install the test wires for multiple electricity meters. The electricity meter withstand voltage test is inefficient. Utility Model Content

[0005] To improve the efficiency of withstand voltage testing of electricity meters, this application provides a withstand voltage testing fixture for electricity meters.

[0006] This application provides a withstand voltage testing fixture for electricity meters, employing the following technical solution: A withstand voltage testing fixture for electricity meters includes a testing platform and a testing device. The testing platform contains several electricity meters, and the testing device is used to test the electricity meters. A mounting component is provided between the electricity meters and the testing platform, and the electricity meters and the mounting component are detachably connected. A connecting rod is provided at the lower end of the electricity meters, and the connecting rod is detachably connected to the electricity meters. A connecting cylinder is fixed at the end of the connecting rod away from the electricity meters, and a connecting wire is provided inside the connecting cylinder, and the connecting wire is detachably connected to the connecting cylinder. A positioning component is provided inside the testing platform, and the positioning component is connected to several connecting wires. A clamping component is provided inside the connecting cylinder, and the clamping component is used to fix the connecting wires. The testing device is located at the lower end of the testing platform.

[0007] By adopting the above technical solution, the testing platform is used to store electricity meters, the mounting components fix the electricity meters, and during the withstand voltage test, the positioning components position multiple connecting wires, the clamping components clamp the connecting wires, connecting the connecting wires to the connecting cylinder, and the connecting rod is connected to the electricity meter. The testing device performs withstand voltage tests on multiple electricity meters through the positioning components and connecting wires. When the same batch of electricity meters has been tested, the connecting rod separates from the electricity meter, and the next batch of electricity meters can be tested. When the electricity meter malfunctions and causes the connecting rod to be damaged, the clamping components release the restriction on the connecting wire, separating the connecting wire from the connecting cylinder. By replacing the connecting cylinder and connecting rod, the withstand voltage test operation can be repeated, thus improving the efficiency of electricity meter withstand voltage testing.

[0008] Optionally, the mounting component includes two clamping plates and a movable component. The two clamping plates are located on both sides of the energy meter along its length and are both vertically arranged. One clamping plate is fixedly connected to the testing platform, and the other clamping plate is slidably connected to the testing platform along its length. The movable component is located between the two clamping plates and is used to move one clamping plate closer to or away from the other clamping plate.

[0009] By adopting the above technical solution, when the electricity meter is located between two clamping plates, the moving part drives one of the clamping plates to move to the other clamping plate, thereby fixing the electricity meter. When the test is completed, the moving part drives the clamping plate to separate from the electricity meter, thereby releasing the fixing of the electricity meter and improving the convenience of electricity meter replacement.

[0010] Optionally, the clamping components include a pressure plate, a threaded rod, and a cylindrical block. The pressure plate is located inside the connecting cylinder and is slidably connected to the connecting cylinder in a vertical direction. The threaded rod passes through the connecting cylinder and is rotatably connected to the pressure plate. The threaded rod is threadedly connected to the connecting cylinder. The cylindrical block is fixedly connected to the side of the threaded rod away from the pressure plate. The cylindrical block is made of insulating material, and the connecting line is located on the side of the pressure plate away from the threaded rod.

[0011] By adopting the above technical solution, when the connecting wire is inside the connecting cylinder, rotating the cylindrical block and the threaded rod work together to drive the pressure plate to fix the connecting wire. When disassembly is required, rotating the cylindrical block in the opposite direction can release the pressure plate from fixing the connecting wire, thus improving the convenience of fixing the connecting wire.

[0012] Optionally, the positioning component includes a support rod, a support plate, several connecting columns, and a sliding block. Both ends of the support rod along its length are fixedly connected to the testing platform. The support plate is fixedly connected inside the testing platform. Both the support rod and the support plate are arranged along the length of the testing platform and are located below the energy meter. The support rod is located above the support plate. Several connecting columns are located inside the testing platform and are arranged along the length of the testing platform. The support rod passes through the connecting columns and is fixedly connected to them. The connecting lines correspond one-to-one with the connecting columns. The end of the connecting line away from the connecting cylinder is fixedly connected to the upper end of the connecting column. The sliding block is located at the upper end of the support plate and is slidably connected to the support plate along its length. A driving component is provided inside the testing platform to drive the sliding block to move. A connecting component is provided at the upper end of the sliding block to connect the sliding block and the connecting columns.

[0013] By adopting the above technical solution, the support rod positions several connecting columns, the support plate supports the sliding block, and when the withstand voltage test is performed, the driving component drives the sliding block to slide. During the sliding process, the connecting component is connected to several connecting columns in sequence, and the testing device is connected to the support plate. The withstand voltage test operation of multiple energy meters is completed through the transmission of current.

[0014] Optionally, the connector includes a cylindrical rod, several springs, and several hemispherical blocks. The cylindrical rod is fixedly connected to the upper end of the sliding block and is arranged vertically. The lower end of the connecting rod has a first groove arranged vertically. The springs correspond one-to-one with the connecting rods, are located in the first grooves, and are arranged vertically. The upper ends of the springs are fixedly connected to the connecting rods. The hemispherical blocks correspond one-to-one with the springs, are located in the first grooves, and are slidably connected to the connecting rods vertically. The lower ends of the springs are fixedly connected to the hemispherical blocks. In its natural state, the springs push the hemispherical blocks to move away from the connecting rods. The upper end of the cylindrical rod has a second groove arranged vertically, which is adapted to the hemispherical blocks.

[0015] By adopting the above technical solution, when the sliding block moves, it drives the cylindrical rod to move as well. When the cylindrical rod contacts the hemispherical block, it first squeezes the hemispherical block, which slides in the first groove and squeezes the spring. When the hemispherical block is aligned with the second groove, the spring pushes the hemispherical block, placing it in the second groove, thus completing the connection operation between the sliding block and the connecting column. When the test is completed, the sliding block drives the cylindrical rod to continue moving, and the hemispherical block separates from the cylindrical rod. This process is repeated to complete the subsequent connection operations, improving the convenience of connecting the sliding block and the connecting column.

[0016] Optionally, the detection device includes a detector and a detection wire. The detector is fixedly connected to the lower end of the detection table and located outside the detection table. One end of the detection wire is fixedly connected to the lower end of the support plate, and the end of the detection wire away from the support plate is connected to the detector and is detachably connected to the detector.

[0017] By adopting the above technical solution, during testing, the detector is energized to the support plate through the detection wire, and the sliding block is connected to the connecting column through the connector, so that the energy meter is connected to the detector, thereby performing withstand voltage testing on the energy meter, which improves the convenience of withstand voltage testing.

[0018] Optionally, the testing platform is provided with two testing windows on the side away from the electricity meter. The testing windows are located on both sides of the testing platform along its length and are vertically hinged to the testing platform.

[0019] By adopting the above technical solution, the two detection windows can observe the situation inside the detection platform and seal the platform, which helps to reduce the impact of the high pressure generated during the detection process on the outside of the platform and improves the safety of the pressure resistance test.

[0020] Optionally, a warning light is fixed to the upper end of the testing platform.

[0021] By adopting the above technical solution, when an error occurs in the withstand voltage test of the electricity meter, the warning light flashes, which improves the convenience of identifying withstand voltage test errors.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. During withstand voltage testing, the testing device performs withstand voltage tests on multiple energy meters through positioning components and connecting wires. When the same batch of energy meters has been tested, the connecting rod separates from the energy meters, allowing the next batch of energy meters to be tested. When an energy meter malfunctions and causes the connecting rod to be damaged, the clamping component contacts the restriction on the connecting wire, causing the connecting wire to separate from the connecting cylinder. By replacing the connecting cylinder and connecting rod, the withstand voltage test can be repeated, thus improving the efficiency of energy meter withstand voltage testing. 2. When the connecting wire is inside the connecting cylinder, rotating the cylindrical block and the threaded rod will cause the pressure plate to fix the connecting wire. When disassembly is required, rotating the cylindrical block in the opposite direction will release the pressure plate from fixing the connecting wire, thus improving the convenience of fixing the connecting wire. 3. When the sliding block moves, it drives the cylindrical rod to move as well. When the cylindrical rod contacts the hemispherical block, it first presses the hemispherical block, which slides in the first groove and presses the spring. When the hemispherical block is aligned with the second groove, the spring pushes the hemispherical block, placing it in the second groove, thus completing the connection between the sliding block and the connecting column. When the test is completed, the sliding block drives the cylindrical rod to continue moving, and the hemispherical block separates from the cylindrical rod. This process is repeated to complete subsequent connection operations, improving the convenience of connecting the sliding block and the connecting column. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a voltage withstand test fixture for electricity meters.

[0024] Figure 2This is a schematic diagram designed to highlight the support rod connection structure. Figure 3 yes Figure 2 An enlarged schematic diagram of part A in the middle.

[0025] Figure 4 yes Figure 2 Enlarged schematic diagram of part B.

[0026] Figure 5 This is a cross-sectional schematic diagram designed to highlight the hemispherical block connection structure.

[0027] Explanation of reference numerals in the attached drawings: 1. Testing platform; 11. Electricity meter; 12. Connecting rod; 13. Connecting cylinder; 14. Connecting wire; 15. Testing window; 16. Warning light; 2. Testing device; 21. Detector; 22. Testing wire; 3. Mounting component; 31. Clamping plate; 32. Moving component; 4. Positioning component; 41. Support rod; 42. Support plate; 43. Connecting column; 44. Sliding block; 45. Driving component; 5. Clamping component; 51. Pressure plate; 52. Threaded rod; 53. Cylindrical block; 6. Connecting component; 61. Cylindrical rod; 62. Spring; 63. Hemispherical block; 64. First groove; 65. Second groove. Detailed Implementation

[0028] The present application will be further described in detail below with reference to all the accompanying drawings.

[0029] This application discloses a pressure resistance test fixture for electricity meters. Example

[0030] Reference Figure 1 A voltage withstand test fixture for electricity meters includes a test bench 1 and a test device 2. The test bench 1 is equipped with multiple electricity meters 11, and the test device 2 is used to test the electricity meters 11.

[0031] Reference Figure 2 An installation component 3 is provided between the electricity meter 11 and the testing platform 1. The electricity meter 11 and the installation component 3 are detachably connected, and the installation component 3 fixes the electricity meter 11. The installation component 3 includes two clamping plates 31 and a moving component 32. The two clamping plates 31 are located on both sides of the electricity meter 11 along its length and are both vertically arranged. One clamping plate 31 is fixedly connected to the testing platform 1, and the other clamping plate 31 is slidably connected to the testing platform 1 along its length. The moving component 32 is located between the two clamping plates 31. When the electricity meter 11 is located between the two clamping plates 31, the moving component 32 drives one clamping plate 31 to move towards the other clamping plate 31, thereby fixing the electricity meter 11. When the test is completed, the moving component 32 drives the clamping plate 31 to separate from the electricity meter 11, thereby releasing the fixation of the electricity meter 11 and improving the convenience of replacing the electricity meter 11.

[0032] Reference Figure 3 The lower end of the electricity meter 11 is provided with a connecting rod 12, which is detachably connected to the electricity meter 11. A connecting cylinder 13 is fixed to the end of the connecting rod 12 away from the electricity meter 11. A connecting wire 14 is provided inside the connecting cylinder 13, which is detachably connected to the connecting cylinder 13. A clamping member 5 is provided inside the connecting cylinder 13 to fix the connecting wire 14. A positioning member 4 is provided inside the testing platform 1. The positioning member 4 is connected to multiple connecting wires 14. During the withstand voltage test, the positioning member 4 positions the multiple connecting wires 14, and the clamping member 5 clamps the connecting wires 14. The clamping device 2 connects the connecting wire 14 to the connecting cylinder 13 and the connecting rod 12 to the electricity meter 11. The testing device 2 performs withstand voltage tests on multiple electricity meters 11 through the positioning component 4 and the connecting wire 14. When the same batch of tests is completed, the connecting rod 12 separates from the electricity meter 11, and the next batch of electricity meters 11 can be tested. When the electricity meter 11 malfunctions and the connecting rod 12 is damaged, the clamping component 5 releases the restriction on the connecting wire 14, causing the connecting wire 14 to separate from the connecting cylinder 13. The withstand voltage test can be repeated by replacing the connecting cylinder 13 and the connecting rod 12.

[0033] Reference Figure 3 The clamping component 5 includes a pressure plate 51, a threaded rod 52, and a cylindrical block 53. The pressure plate 51 is located inside the connecting cylinder 13 and is slidably connected to the connecting cylinder 13 in a vertical direction. The threaded rod 52 passes through the connecting cylinder 13 and is rotatably connected to the pressure plate 51. The connecting line 14 is located on the side of the pressure plate 51 away from the threaded rod 52. The pressure plate 51 and the connecting cylinder 13 cooperate to fix the connecting line 14. The threaded rod 52 is threadedly connected to the connecting cylinder 13. The cylindrical block 53 is fixedly connected to the side of the threaded rod 52 away from the pressure plate 51. The cylindrical block 53 is made of insulating material. When the connecting line 14 is inside the connecting cylinder 13, rotating the cylindrical block 53 causes the cylindrical block 53 and the threaded rod 52 to drive the pressure plate 51 to fix the connecting line 14. When disassembly is required, rotating the cylindrical block 53 in the opposite direction will release the pressure plate 51 from fixing the connecting line 14.

[0034] Reference Figure 2The positioning component 4 includes a support rod 41, a support plate 42, multiple connecting columns 43, and a sliding block 44. Both ends of the support rod 41 are fixedly connected to the testing platform 1 along its length. The support rod 41 is located below the energy meter 11. The multiple connecting columns 43 are located inside the testing platform 1 and arranged along its length. The support rod 41 passes through the connecting columns 43 and is fixedly connected to them. Connecting lines 14 correspond one-to-one with the connecting columns 43, with one end of the connecting line 14 away from the connecting cylinder 13 fixedly connected to the upper end of the connecting column 43. The support rod 41 supports and fixes the multiple connecting columns 43. The support plate 42 is fixedly connected inside the testing platform 1 and is arranged along its length. The support plate 42 is located below the support rod 41. The sliding block 44 is located at the upper end of the support plate 42 and is slidably connected to the support plate 42 along its length. The support plate 42 supports and guides the sliding block 44. A driving component 45 is provided inside the testing platform 1 to drive the sliding block 44 to move.

[0035] Reference Figure 1 and Figure 2 The driving component 45 includes a lead screw and a handle. The lead screw passes through the detection table 1 and the sliding block 44. The lead screw is rotatably connected to the detection table 1 and threadedly connected to the sliding block 44. The handle is fixedly connected to one side of the lead screw along the length direction and is located outside the detection table 1. When it is necessary to move the sliding block 44, the handle is rotated, and the handle drives the lead screw to rotate. The support plate 42 limits the sliding block 44. Therefore, when the lead screw rotates, the sliding block 44 slides along the length direction of the support plate 42.

[0036] Reference Figure 4 and Figure 5A connector 6 is provided at the upper end of the sliding block 44, which is used to connect the sliding block 44 and the connecting post 43. The connector 6 includes a cylindrical rod 61, multiple springs 62, and multiple hemispherical blocks 63. The cylindrical rod 61 is fixedly connected to the upper end of the sliding block 44 and is arranged vertically. The movement of the sliding block 44 drives the cylindrical rod 61 to move. The lower end of the connecting post 43 has a first groove 64 arranged vertically. The springs 62 correspond one-to-one with the connecting post 43 and are located in the first groove 64. The upper end of the springs 62 is fixedly connected to the connecting post 43. The hemispherical blocks 63 correspond one-to-one with the springs 62 and are located in the first groove 64. The hemispherical blocks 63 are slidably connected to the connecting post 43 vertically. The lower end of the springs 62 is fixedly connected to the hemispherical blocks 63. When the cylindrical rod 61 contacts the hemispherical block 63, the cylindrical rod 61 first squeezes the hemispherical block 63. The hemispherical block 63 slides in the first groove 64 and squeezes the springs 62. The upper end of the cylindrical rod 61 has a second groove 65 vertically formed. The second groove 65 is adapted to the hemispherical block 63. When the hemispherical block 63 is aligned with the second groove 65, the spring 62 pushes the hemispherical block 63 so that the hemispherical block 63 is located in the second groove 65, thereby completing the connection operation between the sliding block 44 and the connecting post 43. When the test is completed, the sliding block 44 drives the cylindrical rod 61 to continue moving, and the hemispherical block 63 separates from the cylindrical rod 61. The subsequent connection operation is completed in a cyclical manner, which improves the convenience of connecting the sliding block 44 and the connecting post 43.

[0037] Reference Figure 1 The detection device 2 includes a detector 21 and a detection wire 22. The detector 21 is fixedly connected to the lower end of the detection platform 1 and located outside the detection platform 1. One end of the detection wire 22 is fixedly connected to the lower end of the support plate 42. The end of the detection wire 22 away from the support plate 42 is connected to the detector 21 and is detachably connected to the detector 21. During the test, the detector 21 is energized to the support plate 42 through the detection wire 22. The sliding block 44 is connected to the connecting column 43 through the connector 6, so that the energy meter 11 is connected to the detector 21, and then the energy meter 11 is subjected to withstand voltage test.

[0038] Reference Figure 1 The testing platform 1 has two testing windows 15 on the side away from the electricity meter 11. These windows are located on both sides of the testing platform 1 along its length and are vertically hinged to it. The two windows 15 allow observation of the interior of the testing platform 1 and can also be used to seal it, reducing the impact of the high voltage generated during testing on the outside of the testing platform 1 and improving the safety of the withstand voltage test. A warning light 16 is fixed to the upper end of the testing platform 1. When an error occurs during the withstand voltage test of the electricity meter 11, the warning light 16 flashes.

[0039] The implementation principle of the withstand voltage testing fixture for electricity meters in this application embodiment is as follows: When the withstand voltage test is performed on the same batch of voltmeters, the driving component 45 drives the sliding block 44 to slide along the length direction of the support plate 42. The sliding block 44 is connected to multiple connecting posts 43 in sequence through the connecting component 6. When the sliding block 44 is connected to the connecting post 43, a circuit path is formed between the detection device 2 and the electricity meter 11, thereby performing withstand voltage testing on the electricity meter 11. When the same batch of electricity meters 11 has been tested, the connecting rod 12 is separated from the electricity meter 11, and the next batch of electricity meters 11 can be tested. When the electricity meter 11 malfunctions and causes the connecting rod 12 to be damaged, the clamping component 5 contacts the restriction on the connecting wire 14, causing the connecting wire 14 to separate from the connecting cylinder 13. By replacing the connecting cylinder 13 and the connecting rod 12, the withstand voltage test operation can be repeated, which improves the efficiency of the withstand voltage test of the electricity meter 11.

[0040] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A withstand voltage testing fixture for electricity meters, comprising a testing platform (1) and a testing device (2), wherein the testing platform (1) is provided with a plurality of electricity meters (11), and the testing device (2) is used to test the electricity meters (11), characterized in that: An installation component (3) is provided between the energy meter (11) and the testing platform (1). The energy meter (11) and the installation component (3) are detachably connected. A connecting rod (12) is provided at the lower end of the energy meter (11). The connecting rod (12) and the energy meter (11) are detachably connected. A connecting cylinder (13) is fixed at the end of the connecting rod (12) away from the energy meter (11). A connecting wire (14) is provided inside the connecting cylinder (13). The connecting wire (14) and the connecting cylinder (13) are detachably connected. A positioning component (4) is provided inside the testing platform (1). The positioning component (4) is connected to several connecting wires (14). A clamping component (5) is provided inside the connecting cylinder (13). The clamping component (5) is used to fix the connecting wires (14). The testing device (2) is located at the lower end of the testing platform (1).

2. The withstand voltage testing fixture for an electricity meter according to claim 1, characterized in that: The mounting component (3) includes two clamping plates (31) and a moving component (32). The two clamping plates (31) are located on both sides of the energy meter (11) along the length direction and are both set vertically. One clamping plate (31) is fixedly connected to the testing platform (1), and the other clamping plate (31) is slidably connected to the testing platform (1) along the length direction of the testing platform (1). The moving component (32) is located between the two clamping plates (31) and is used to drive one of the clamping plates (31) to move closer to or away from the other clamping plate (31).

3. The withstand voltage testing fixture for an electricity meter according to claim 1, characterized in that: The clamping member (5) includes a pressure plate (51), a threaded rod (52), and a cylindrical block (53). The pressure plate (51) is located inside the connecting cylinder (13) and is slidably connected to the connecting cylinder (13) in the vertical direction. The threaded rod (52) passes through the connecting cylinder (13) and is rotatably connected to the pressure plate (51). The threaded rod (52) is threadedly connected to the connecting cylinder (13). The cylindrical block (53) is fixedly connected to the side of the threaded rod (52) away from the pressure plate (51). The cylindrical block (53) is made of insulating material. The connecting line (14) is located on the side of the pressure plate (51) away from the threaded rod (52).

4. The withstand voltage testing fixture for an electricity meter according to claim 1, characterized in that: The positioning component (4) includes a support rod (41), a support plate (42), several connecting columns (43), and a sliding block (44). Both ends of the support rod (41) along its length are fixedly connected to the testing platform (1). The support plate (42) is fixedly connected inside the testing platform (1). The support rod (41) and the support plate (42) are both arranged along the length of the testing platform (1) and are both located below the energy meter (11). The support rod (41) is located above the support plate (42). Several connecting columns (43) are located inside the testing platform (1) and are arranged along the length of the testing platform (1). The support rod (41) passes through the connecting columns. (43) and fixedly connected to the connecting column (43), the connecting line (14) corresponds one-to-one with the connecting column (43), the end of the connecting line (14) away from the connecting cylinder (13) is fixedly connected to the upper end of the connecting column (43), the sliding block (44) is located at the upper end of the support plate (42) and is slidably connected to the support plate (42) along the length direction of the support plate (42), the detection table (1) is provided with a driving component (45), the driving component (45) is used to drive the sliding block (44) to move, the upper end of the sliding block (44) is provided with a connecting component (6), the connecting component (6) is used to connect the sliding block (44) and the connecting column (43).

5. The withstand voltage testing fixture for an electricity meter according to claim 4, characterized in that: The connector (6) includes a cylindrical rod (61), several springs (62), and several hemispherical blocks (63). The cylindrical rod (61) is fixedly connected to the upper end of the sliding block (44) and is arranged vertically. The lower end of the connecting rod (43) has a first groove (64) arranged vertically. The springs (62) correspond one-to-one with the connecting rods (43). The springs (62) are located in the first grooves (64) and are arranged vertically. The upper end of the springs (62) is fixedly connected to the connecting rods (43). The hemispherical blocks (63) are fixedly connected to the connecting rods (43). 63) Corresponding one-to-one with spring (62), hemispherical block (63) is located in the first groove (64). Hemispherical block (63) is slidably connected to connecting post (43) in the vertical direction. The lower end of spring (62) is fixedly connected to hemispherical block (63). In the natural state, spring (62) pushes hemispherical block (63) to move away from connecting post (43). The upper end of cylindrical rod (61) is provided with second groove (65) in the vertical direction. Second groove (65) is adapted to hemispherical block (63).

6. The withstand voltage testing fixture for an electricity meter according to claim 4, characterized in that: The detection device (2) includes a detector (21) and a detection wire (22). The detector (21) is fixedly connected to the lower end of the detection platform (1) and located outside the detection platform (1). One end of the detection wire (22) is fixedly connected to the lower end of the support plate (42). The end of the detection wire (22) away from the support plate (42) is connected to the detector (21) and is detachably connected to the detector (21).

7. The withstand voltage testing fixture for an electricity meter according to claim 1, characterized in that: The testing platform (1) has two testing windows (15) on the side away from the electricity meter (11). The testing windows (15) are located on both sides of the testing platform (1) along the length direction and are vertically hinged to the testing platform (1).

8. The withstand voltage testing fixture for an electricity meter according to claim 1, characterized in that: A warning light (16) is fixedly installed at the upper end of the testing station (1).

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