A switch built-in electric energy meter detection tooling device

Abstract

The application belongs to the technical field of electric energy meter detection, and particularly relates to a switch built-in electric energy meter detection tool device, which comprises a machine body, a fixed plate fixed to the upper surface of the machine body, two groups of symmetrical eccentric wheels rotatably arranged on the upper surface of the fixed plate, a limiting plate arranged below the eccentric wheels, and a turnover assembly arranged on the upper surface of the fixed plate. The turnover assembly comprises two positioning guide rails fixed to the upper surface of the fixed plate, two positioning frames symmetrically arranged between the two positioning guide rails, an auxiliary part arranged on the upper surface of each positioning frame, and a bottom plate slidably connected to the lower surface of each positioning frame. The bottom plate cooperates with the auxiliary part to limit the electric energy meter. The turnover assembly solves the problems of complicated turnover process and low detection efficiency in the prior art.

Description

Technical Field

[0001] This invention belongs to the field of electricity meter testing technology, specifically a testing fixture for electricity meters with a built-in switch. Background Technology

[0002] An electricity meter, also known as a kilowatt-hour meter, is an instrument specifically designed to measure electrical energy. Thanks to continuous advancements in advanced technologies such as sampling, microprocessor, and design, electricity meter products are becoming increasingly diversified. Today, many electricity meters integrate multifunctionality, networking, intelligence, and digitalization, comprehensively meeting various current metering needs. They can not only perform active power metering, reactive power metering, and demand calculation, but also conduct complex tasks such as power grid quality monitoring and power grid event recording. Furthermore, they can function as communication slaves, enabling efficient data exchange with the central control master station.

[0003] A patent with publication number CN118980984A discloses a testing fixture for a switch-embedded energy meter. The fixture includes a placement platform with several symmetrically distributed clamping plates on its top. Clamping components are located on both sides of the clamping plates, connected to the placement platform via an angle-adjusting component. A movable component is slidably connected to the placement platform, a rotating component is located at the bottom of the placement platform, a positioning component is located on one side of the rotating component, a height-adjusting component is connected to the bottom of the placement platform, and a driving component is connected to one end of the height-adjusting component. This device allows the movable component to adjust the position of the clamping plates, and the angle-adjusting component to adjust the tilt angle of the clamping plates. This allows the clamping plates to clamp and fix the switch-embedded energy meter from different positions and angles. Furthermore, the clamping components allow the clamping plates to be positioned at different heights, thus enabling the clamping and fixing of switch-embedded energy meters of varying thicknesses and expanding the applicability of the testing work.

[0004] In practical use, existing electricity meter testing devices typically involve first fixing the electricity meter in a limiting position. After testing the front side, the limiting constraint must be released, and the meter must be manually flipped so that the back side faces up. Then, the limiting constraint must be re-established before the back side can be tested. The entire process requires repeated operations of limiting, unlocking, manual flipping, and secondary positioning. The steps are redundant and complex. This method not only significantly increases the labor intensity of operators but also easily leads to inconsistent positioning accuracy and inconsistent cycle time due to manual operation, affecting the stability and reliability of the testing.

[0005] Therefore, the present invention provides a tooling device for testing a switch-embedded energy meter. Summary of the Invention

[0006] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0007] The technical solution adopted by this invention to solve its technical problem is as follows: A switch-embedded energy meter testing fixture of this invention includes a body. A fixing plate is fixedly connected to the upper surface of the body. Two sets of symmetrical eccentric wheels are rotatably arranged on the upper surface of the fixing plate. A limit plate is provided below the eccentric wheels. A flipping assembly is provided on the upper surface of the fixing plate. The flipping assembly includes two positioning guide rails fixed to the upper surface of the fixing plate. Two positioning frames are symmetrically arranged between the two positioning guide rails. An auxiliary component is provided on the upper surface of each positioning frame. The auxiliary component is used to assist in fixing the energy meter. A slidingly connected base plate is provided on the lower surface of each positioning frame. The base plate cooperates with the auxiliary component to limit the energy meter. A cleaning assembly is provided between the two positioning guide rails. The cleaning assembly is used for cleaning the energy meter after flipping. The cleaning assembly includes a connecting guide rail fixed to the top of the two positioning guide rails. A cleaning plate is slidably connected to the lower side of the connecting guide rail. The cleaning plate wipes the outer surface of the energy meter.

[0008] Preferably, the auxiliary components include four auxiliary plates fixedly attached to the upper surface of the positioning frame, each auxiliary plate having an auxiliary groove inside, an auxiliary shaft fixedly attached inside the auxiliary groove, a torsion spring sleeved on the circumferential surface of the auxiliary shaft, an auxiliary block rotatably connected to the circumferential surface of the auxiliary shaft, and a pressure sensor fixedly attached to the upper surface of one of the base plates.

[0009] Preferably, a positioning guide block is slidably connected inside the positioning guide rail, a rotating column is rotatably connected to one side of the positioning guide block, a cam is slidably connected to the circumferential surface of the rotating column, a rack plate is fixedly connected to one side of the inner wall of the positioning guide rail, a limit strip is fixedly connected to the circumferential surface of the rotating column, a controllable magnetic pole block is fixedly connected to one end of the limit strip, and the rotating column is fixedly connected to the positioning frame.

[0010] Preferably, the two positioning frames are symmetrically arranged around the axis of symmetry of the connecting column, so that the two energy meters can be flipped simultaneously.

[0011] Preferably, the cleaning assembly includes a connecting guide rail fixed between two positioning guide rails, a sliding plate slidably connected to the lower surface of the connecting guide rail, a cleaning plate fixedly connected to the lower surface of the sliding plate, and a cleaning roller rotatably connected to the lower surface of the cleaning plate.

[0012] Preferably, the cleaning plate has a positioning cavity inside, and two storage boxes are fixed to the upper surface of the cleaning plate. Each storage box is connected to the cleaning plate with a trigger, and the storage box is connected to the positioning cavity inside the cleaning plate through the trigger.

[0013] Preferably, the triggering element includes several conical blocks fixed to both sides of the connecting guide rail. Each storage box has a limiting groove inside. A spring is fixed to the inner wall of the limiting groove. A conical plate is fixed to one end of the spring. A positioning hole is opened on the surface of the conical plate. An auxiliary hole is opened inside the storage box. A fixing hole is opened on the surface of the cleaning plate.

[0014] Preferably, during the testing of the electricity meter, the electricity meter is first placed on the upper surface of the fixed plate. The eccentric wheel and the limiting plate work together to limit and position the meter. After positioning and limiting, testing is performed. After testing, two positioning guide rails are activated, causing two positioning frames to move downwards, thus covering the tested electricity meter. Then, the base plate, which is slidably connected to the lower surface of the positioning frames, is activated. The base plate lifts the electricity meter, placing it inside the positioning frame. At this time, the pressure sensor on the upper surface of the base plate receives a pressure signal, energizing the electrically controlled magnetic plate on the inner wall of the auxiliary plate, causing the auxiliary sensor inside the auxiliary plate to activate. The inner wall of the groove is magnetic, which discharges an auxiliary block with the same magnetism, causing the auxiliary block to rotate and be positioned above the energy meter. Then, the controllable magnetic pole block on the circumference of the rotating column is activated, causing the controllable magnetic pole block to be charged and repel the cam. The cam slides along the limit bar and abuts against the positioning guide block. Then, as the positioning guide block moves upward under the drive of the positioning guide rail, the cam meshes with the rack plate and rotates, thereby driving the positioning frame to rotate. After the flip is completed, the controllable magnetic pole block is activated, causing the controllable magnetic pole block to magnetically attract the cam. As the positioning guide block moves downward, the cam disengages from the rack plate, thus completing the flipping operation.

[0015] Preferably, the two sets of positioning frames arranged symmetrically are the same number as the number of energy meters limited by the eccentric wheel and the limiting plate, so that the flipping component works in conjunction with the eccentric wheel.

[0016] Preferably, after the energy meter is flipped over, its back side faces upwards, and the positioning frame is at the top of the positioning guide rail. The connecting guide rail is activated, and the sliding plate slidably connected to its lower surface is activated. The sliding plate drives the cleaning roller on the lower surface of the cleaning plate to clean the back of the flipped energy meter. During the movement of the cleaning plate driven by the sliding plate, the storage box fixed to the upper surface of the cleaning plate is moved. The cone plate on one side of the storage box will abut against several cone blocks fixed to the side of the connecting guide rail one by one. The cone blocks periodically squeeze the cone plate. When the cone plate is squeezed, it squeezes the spring, and at the same time, the cone plate retracts into the limiting groove. At this time, the positioning hole on the surface of the cone plate gradually connects with the auxiliary hole inside the storage box and the fixing hole on the upper surface of the cleaning plate, so that the cleaning liquid in the storage box flows into the positioning cavity to wet the cleaning roller and carry out the cleaning work.

[0017] The beneficial effects of this invention are as follows: 1. The present invention discloses a switch-embedded energy meter testing fixture, which uses an eccentric wheel and a limiting plate to position the energy meter, ensuring a stable and reliable testing process. After testing, the positioning guide rail drives the positioning frame to move downwards, and the base plate automatically lifts the energy meter. A pressure sensor detects the meter's position. The magnetic interaction between the electrically controlled magnetic plate and the auxiliary block quickly creates an upper limit constraint on the energy meter, preventing displacement or detachment during the flipping process. Through the magnetic attraction and repulsion control of the cam by the controllable magnetic pole block, combined with the meshing transmission between the rack plate and the cam, the positioning frame and the energy meter can be automatically driven to flip during the up-and-down movement of the positioning guide block, eliminating the need for manual intervention. This simplifies the operation process, reduces labor intensity, and improves testing efficiency and automation.

[0018] 2. The present invention discloses a switch-embedded energy meter detection fixture. After the energy meter is flipped to face up, the positioning frame moves to the top of the positioning guide rail. Then, the sliding plate and cleaning plate are moved by connecting the guide rail. The cleaning roller automatically cleans the back of the energy meter. During the movement of the cleaning plate, the cone plate on one side of the storage tank periodically abuts against the cone block on the side of the connecting guide rail. Under the squeezing action of the cone block, the cone plate compresses the spring and retracts into the limiting groove, so that the positioning hole, auxiliary hole and fixing hole are connected in sequence. The cleaning liquid in the storage tank can automatically flow into the positioning cavity and wet the cleaning roller, realizing continuous operation of moving, supplying liquid and cleaning at the same time. There is no need to set up a separate cleaning liquid drive and control component. The automatic supply of cleaning liquid can be realized by mechanical cooperation. The cleaning process is stable and uniform, thus improving the cleaning effect. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a perspective view of Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the structure of the flipping component of the present invention; Figure 3 This is a schematic diagram of the structure of the auxiliary component of the present invention; Figure 4 This is a schematic diagram of the connection relationship between the rotating column and the cam in this invention; Figure 5 This is a schematic diagram of the cleaning component of the present invention; Figure 6 This is a schematic diagram of the storage box of the present invention; Figure 7 This is a cross-sectional view of the storage box of the present invention; In the diagram: 1. Body; 11. Fixing plate; 12. Eccentric wheel; 13. Limiting plate; 2. Positioning guide rail; 21. Positioning frame; 22. Auxiliary plate; 23. Connecting column; 24. Connecting guide rail; 25. Cleaning plate; 26. Positioning guide block; 27. Rotating column; 28. Cam; 29. ​​Limiting strip; 210. Controllable magnetic pole block; 211. Rack plate; 212. Base plate; 213. Auxiliary groove; 214. Auxiliary shaft; 215. Torsion spring; 216. Auxiliary block; 217. Cleaning roller; 218. Sliding plate; 219. Storage box; 220. Conical block; 221. Conical plate; 222. Spring; 223. Positioning hole; 224. Auxiliary hole; 225. Fixing hole; 226. Positioning cavity; 227. Limiting groove. Detailed Implementation

[0021] 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.

[0022] Example 1: As Figures 1 to 7 As shown in the embodiment of the present invention, a switch-embedded energy meter testing fixture is provided. A fixed plate 11 is fixedly attached to the upper surface of the body 1. Two sets of symmetrical eccentric wheels 12 are rotatably arranged on the upper surface of the fixed plate 11. A limit plate 13 is provided below the eccentric wheels 12. A flipping assembly is provided on the upper surface of the fixed plate 11. The flipping assembly includes two positioning guide rails 2 fixed to the upper surface of the fixed plate 11. Two positioning frames 21 are symmetrically arranged between the two positioning guide rails 2. An auxiliary component is provided on the upper surface of each positioning frame 21 to assist in fixing the energy meter. A slidingly connected base plate 212 is provided on the lower surface of each positioning frame 21. The base plate 212 cooperates with the auxiliary component to limit the energy meter. A cleaning assembly is provided between the two positioning guide rails 2. The cleaning assembly is used for cleaning the energy meter after flipping. The cleaning assembly includes a connecting guide rail 24 fixed to the top of the two positioning guide rails 2. A cleaning plate 25 is slidably connected to the lower side of the rail 24, and the cleaning plate 25 wipes the outer surface of the electricity meter casing. The auxiliary components include four auxiliary plates 22 fixed to the upper surface of the positioning frame 21. Each auxiliary plate 22 has an auxiliary groove 213 inside, and an auxiliary shaft 214 is fixed inside the auxiliary groove 213. A torsion spring 215 is sleeved on the circumferential surface of the auxiliary shaft 214. An auxiliary block 216 is rotatably connected to the circumferential surface of the auxiliary shaft 214. A pressure sensor is fixed to the upper surface of one of the base plates 212. A positioning guide block 26 is slidably connected inside the positioning guide rail 2. A rotating column 27 is rotatably connected to one side of the positioning guide block 26. A cam 28 is slidably connected to the circumferential surface of the rotating column 27. A rack plate 211 is fixed to one side of the inner wall of the positioning guide rail 2. A limit strip 29 is fixed to the circumferential surface of the rotating column 27. A controllable magnetic pole block 210 is fixed to one end of the limit strip 29. The rotating column 27 is fixed to the positioning frame 21.

[0023] Specifically, in actual use, existing electricity meter testing devices typically involve first fixing the electricity meter in a limited position. After testing the front side, the limiting constraint must be released, and the electricity meter must be manually flipped so that the back side faces up. Then, the limiting constraint must be re-fixed before the back side can be tested. The entire process requires repeated operations such as limiting, unlocking, manual flipping, and secondary positioning. The steps are redundant and the connections are complex. This method not only significantly increases the labor intensity of operators but also easily leads to problems such as inconsistent positioning accuracy and inconsistent cycle time due to manual operation, affecting the stability and reliability of the test. Therefore, this invention solves the above problems by setting the above structure. First, when performing the electricity meter test, the electricity meter is placed on the upper surface of the fixed plate 11. The eccentric wheel 12 and the limiting plate 13 cooperate to perform the limiting and positioning work. After the positioning and limiting are completed, the test is performed. After the test is completed, the two positioning guide rails 2 are activated. The two positioning guide rails 2 drive the two positioning frames 21 to move down, thereby covering the tested electricity meter. Then, the bottom plate 212, which is slidably connected to the lower surface of the positioning frame 21, is activated. The bottom plate 212 lifts the electricity meter, so that the electricity meter is located inside the positioning frame 21. At this time, the pressure sensor on the upper surface of the bottom plate 212 receives the pressure signal, and the electro-magnetic plate on the inner wall of the auxiliary plate 22 is energized, so that the auxiliary groove 2 inside the auxiliary plate 22 is energized. The inner wall of 13 is magnetic, thereby discharging the auxiliary block 216 with the same magnetism, so that the auxiliary block 216 rotates to be above the energy meter. Then, the controllable magnetic pole block 210 on the circumferential surface of the rotating column 27 is activated, so that the controllable magnetic pole block 210 is charged and repels the cam 28. The cam 28 slides along the limit bar 29 and abuts against the positioning guide block 26. Then, during the upward movement of the positioning guide block 26 driven by the positioning guide rail 2, the cam 28 meshes with the rack plate 211 and rotates, thereby driving the positioning frame 21 to rotate. When the flip is completed, the controllable magnetic pole block 210 is activated, so that the controllable magnetic pole block 210 magnetically attracts the cam 28. During the downward movement of the positioning guide block 26, the cam 28 disengages from the rack plate 211, thereby completing the flip operation. The eccentric wheel 12 and the limiting plate 13 work together to position the energy meter, ensuring a stable and reliable testing process. After testing, the positioning guide rail 2 drives the positioning frame 21 to move downwards, and the base plate 212 automatically lifts the energy meter. A pressure sensor detects the meter's position, and the magnetic interaction between the electrically controlled magnetic plate and the auxiliary block 216 quickly creates an upper limit constraint on the energy meter, preventing displacement or detachment during the flipping process. The controllable magnetic pole block 210 controls the magnetic attraction and repulsion of the cam 28, and the rack plate 211 meshes with the cam 28, automatically driving the positioning frame 21 and the energy meter to flip during the up-and-down movement of the positioning guide block 26. This eliminates the need for manual intervention, simplifying the operation process, reducing labor intensity, and improving testing efficiency and automation.

[0024] Example 2: Figures 1 to 7As shown in the comparative embodiment one, another embodiment of the present invention is as follows: the cleaning component includes a connecting guide rail 24 fixed between two positioning guide rails 2, a sliding plate 218 slidably connected to the lower surface of the connecting guide rail 24, a cleaning plate 25 fixedly connected to the lower surface of the sliding plate 218, and a cleaning roller 217 rotatably connected to the lower surface of the cleaning plate 25; a positioning cavity 226 is opened inside the cleaning plate 25, and two storage boxes 219 are fixedly connected to the upper surface of the cleaning plate 25, with a space provided between each storage box 219 and the cleaning plate 25. The triggering element connects the storage box 219 to the positioning cavity 226 inside the cleaning plate 25. The triggering element includes several cone blocks 220 fixed to both sides of the connecting guide rail 24. Each storage box 219 has a limiting groove 227 inside. A spring 222 is fixed to the inner wall of the limiting groove 227. A cone plate 221 is fixed to one end of the spring 222. A positioning hole 223 is opened on the surface of the cone plate 221. An auxiliary hole 224 is opened inside the storage box 219. A fixing hole 225 is opened on the surface of the cleaning plate 25.

[0025] Specifically, after the electricity meter is flipped over, its back side faces upwards, and the positioning frame 21 is at the top of the positioning guide rail 2. The connecting guide rail 24 is activated, and the sliding plate 218 slidably connected to its lower surface is activated. The sliding plate 218 drives the cleaning roller 217 on the lower surface of the cleaning plate 25 to clean the back of the flipped electricity meter. During the movement of the cleaning plate 25, the storage box 219 fixed to the upper surface of the cleaning plate 25, and the cone plate 221 on one side of the storage box 219 will interact with the connecting guide rail 2. 4. Several cone blocks 220 fixed to the side abut one by one, and the cone blocks 220 periodically squeeze the cone plate 221. When the cone plate 221 is squeezed, the spring 222 is squeezed. At the same time, the cone plate 221 retracts into the limiting groove 227. At this time, the positioning hole 223 on the surface of the cone plate 221 gradually connects with the auxiliary hole 224 inside the storage box 219 and the fixing hole 225 on the upper surface of the cleaning plate 25, so that the cleaning liquid in the storage box 219 flows into the positioning cavity 226 to wet the cleaning roller 217 and carry out the cleaning work. After the electricity meter is flipped to face up, the positioning frame 21 moves to the top of the positioning guide rail 2. Then, the sliding plate 218 and the cleaning plate 25 are moved by the connecting guide rail 24. The cleaning roller 217 is used to automatically clean the back of the electricity meter. During the movement of the cleaning plate 25, the cone plate 221 on one side of the storage tank 219 periodically abuts against the cone block 220 on the side of the connecting guide rail 24. Under the squeezing action of the cone block 220, the cone plate 221 compresses the spring 222 and retracts into the limiting groove 227, so that the positioning hole 223, the auxiliary hole 224 and the fixing hole 225 are connected in sequence. The cleaning liquid in the storage tank 219 can automatically flow into the positioning cavity 226 and wet the cleaning roller 217, realizing continuous operation of moving, supplying liquid and cleaning at the same time. There is no need to set up a separate cleaning liquid drive and control component. The automatic supply of cleaning liquid can be realized by mechanical cooperation. The cleaning process is stable and uniform, which improves the cleaning effect.

[0026] Working principle: First, when testing the electricity meter, the meter is placed on the upper surface of the fixed plate 11. The eccentric wheel 12 and the limiting plate 13 work together to limit and position the meter. After positioning and limiting, testing is performed. After testing, the two positioning guide rails 2 are activated, causing the two positioning frames 21 to move downwards, thus covering the tested electricity meter. Then, the base plate 212, which is slidably connected to the lower surface of the positioning frame 21, is activated. The base plate 212 lifts the electricity meter, placing it inside the positioning frame 21. At this time, the pressure sensor on the upper surface of the base plate 212 receives a pressure signal, energizing the electrically controlled magnetic plate on the inner wall of the auxiliary plate 22, making the inner wall of the auxiliary groove 213 inside the auxiliary plate 22 magnetic. This causes the auxiliary block 216 with the same magnetism to be discharged, so that the auxiliary block 216 rotates and is positioned above the energy meter. Then, the controllable magnetic pole block 210 on the circumference of the rotating column 27 is activated, so that the controllable magnetic pole block 210 is charged and repels the cam 28. The cam 28 slides along the limit bar 29 and abuts against the positioning guide block 26. Then, as the positioning guide block 26 moves upward under the drive of the positioning guide rail 2, the cam 28 meshes with the rack plate 211 and rotates, thereby driving the positioning frame 21 to rotate. After the flip is completed, the controllable magnetic pole block 210 is activated, so that the controllable magnetic pole block 210 magnetically attracts the cam 28. As the positioning guide block 26 moves downward, the cam 28 disengages from the rack plate 211, thereby completing the flip operation. The eccentric wheel 12 and the limiting plate 13 work together to position the energy meter, ensuring a stable and reliable testing process. After testing, the positioning guide rail 2 drives the positioning frame 21 to move downwards, and the base plate 212 automatically lifts the energy meter. A pressure sensor detects the meter's position. The magnetic interaction between the electrically controlled magnetic plate and the auxiliary block 216 quickly forms an upper limit constraint on the energy meter, preventing displacement or detachment during the flipping process. The controllable magnetic pole block 210 controls the magnetic attraction and repulsion of the cam 28, and the rack plate 211 meshes with the cam 28, automatically driving the positioning frame 21 and the energy meter to flip during the up-and-down movement of the positioning guide block 26. This eliminates the need for manual intervention, simplifying the operation process, reducing labor intensity, and improving testing efficiency and automation. Additionally, since the energy meter is flipped so that its back is facing upwards, and the positioning frame 21 is at the top of the positioning guide rail 2, the connecting guide rail 24 is activated. The connecting guide rail 24 activates the sliding plate 218 that is slidably connected to its lower surface. The sliding plate 218 drives the cleaning roller 217 on the lower surface of the cleaning plate 25 to clean the back of the flipped energy meter. During the movement of the cleaning plate 25, the storage box 219 fixed to the upper surface of the cleaning plate 25, and the cone plate 221 on one side of the storage box 219 will interact with the connecting guide rail 2. 4. Several cone blocks 220 fixed to the side abut one by one, and the cone blocks 220 periodically squeeze the cone plate 221. When the cone plate 221 is squeezed, the spring 222 is squeezed. At the same time, the cone plate 221 retracts into the limiting groove 227. At this time, the positioning hole 223 on the surface of the cone plate 221 gradually connects with the auxiliary hole 224 inside the storage box 219 and the fixing hole 225 on the upper surface of the cleaning plate 25, so that the cleaning liquid in the storage box 219 flows into the positioning cavity 226 to wet the cleaning roller 217 and carry out the cleaning work. After the electricity meter is flipped to face up, the positioning frame 21 moves to the top of the positioning guide rail 2. Then, the sliding plate 218 and the cleaning plate 25 are moved by the connecting guide rail 24. The cleaning roller 217 is used to automatically clean the back of the electricity meter. During the movement of the cleaning plate 25, the cone plate 221 on one side of the storage tank 219 periodically abuts against the cone block 220 on the side of the connecting guide rail 24. Under the squeezing action of the cone block 220, the cone plate 221 compresses the spring 222 and retracts into the limiting groove 227, so that the positioning hole 223, the auxiliary hole 224 and the fixing hole 225 are connected in sequence. The cleaning liquid in the storage tank 219 can automatically flow into the positioning cavity 226 and wet the cleaning roller 217, realizing continuous operation of moving, supplying liquid and cleaning at the same time. There is no need to set up a separate cleaning liquid drive and control component. The automatic supply of cleaning liquid can be realized by mechanical cooperation. The cleaning process is stable and uniform, which improves the cleaning effect.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A switch-embedded energy meter testing fixture, comprising a body (1), wherein a fixing plate (11) is fixedly connected to the upper surface of the body (1), and two sets of symmetrical eccentric wheels (12) are rotatably arranged on the upper surface of the fixing plate (11), and a limit plate (13) is provided below the eccentric wheels (12), characterized in that: The upper surface of the fixed plate (11) is provided with a flipping component. The flipping component includes two positioning guide rails (2) fixed to the upper surface of the fixed plate (11). Two positioning frames (21) are symmetrically arranged between the two positioning guide rails (2). Each positioning frame (21) has an auxiliary component on its upper surface. The auxiliary component is used to assist in fixing the energy meter. Each positioning frame (21) has a slidingly connected base plate (212) on its lower surface. The base plate (212) cooperates with the auxiliary component to limit the energy meter. A cleaning component is provided between the two positioning guide rails (2). The cleaning component is used for cleaning the electricity meter after it is flipped over. The cleaning component includes a connecting guide rail (24) fixed to the top of the two positioning guide rails (2). A cleaning plate (25) is slidably connected to the bottom of the connecting guide rail (24). The cleaning plate (25) wipes the outer surface of the electricity meter.

2. The switch-embedded energy meter testing fixture according to claim 1, characterized in that: The auxiliary components include four auxiliary plates (22) fixedly attached to the upper surface of the positioning frame (21). Each auxiliary plate (22) has an auxiliary groove (213) inside. An auxiliary shaft (214) is fixedly attached inside the auxiliary groove (213). A torsion spring (215) is sleeved on the circumferential surface of the auxiliary shaft (214). An auxiliary block (216) is rotatably connected to the circumferential surface of the auxiliary shaft (214). A pressure sensor is fixedly attached to the upper surface of one of the base plates (212).

3. The switch-embedded energy meter testing fixture according to claim 1, characterized in that: A positioning guide block (26) is slidably connected inside the positioning guide rail (2). A rotating column (27) is rotatably connected to one side of the positioning guide block (26). A cam (28) is slidably connected to the circumferential surface of the rotating column (27). A rack plate (211) is fixedly connected to one side of the inner wall of the positioning guide rail (2). A limit strip (29) is fixedly connected to the circumferential surface of the rotating column (27). A controllable magnetic pole block (210) is fixedly connected to one end of the limit strip (29). The rotating column (27) is fixedly connected to the positioning frame (21).

4. The switch-embedded energy meter testing fixture according to claim 3, characterized in that: The two positioning frames (21) are symmetrically arranged with the connecting column (23) as the axis of symmetry, so that the two energy meters can be flipped at the same time.

5. The switch-embedded energy meter testing fixture according to claim 1, characterized in that: The cleaning assembly includes a connecting rail (24) fixed between two positioning rails (2), a sliding plate (218) slidably connected to the lower surface of the connecting rail (24), a cleaning plate (25) fixedly connected to the lower surface of the sliding plate (218), and a cleaning roller (217) rotatably connected to the lower surface of the cleaning plate (25).

6. The switch-embedded energy meter testing fixture according to claim 5, characterized in that: The cleaning plate (25) has a positioning cavity (226) inside. Two storage boxes (219) are fixed to the upper surface of the cleaning plate (25). Each storage box (219) is provided with a trigger between it and the cleaning plate (25). The storage box (219) is connected to the positioning cavity (226) inside the cleaning plate (25) through the trigger.

7. The switch-embedded energy meter testing fixture according to claim 6, characterized in that: The triggering element includes several cone blocks (220) fixed to both sides of the connecting guide rail (24). Each storage box (219) has a limiting groove (227) inside. A spring (222) is fixed to the inner wall of the limiting groove (227). A cone plate (221) is fixed to one end of the spring (222). A positioning hole (223) is opened on the surface of the cone plate (221). An auxiliary hole (224) is opened inside the storage box (219). A fixing hole (225) is opened on the surface of the cleaning plate (25).

8. The switch-embedded energy meter testing fixture according to claim 3, characterized in that: When performing electricity meter testing, the electricity meter is first placed on the upper surface of the fixed plate (11). The eccentric wheel (12) and the limiting plate (13) work together to limit and position the meter. After the positioning and limiting are completed, the meter is tested. After the test is completed, the two positioning guide rails (2) are activated. The two positioning guide rails (2) drive the two positioning frames (21) to move down, thereby covering the tested electricity meter. Then, the bottom plate (212) that is slidably connected to the lower surface of the positioning frame (21) is activated. The bottom plate (212) lifts the electricity meter, so that the electricity meter is located inside the positioning frame (21). At this time, the pressure sensor on the upper surface of the bottom plate (212) receives the pressure signal, and the electro-magnetic plate on the inner wall of the auxiliary plate (22) is energized, so that the inner wall of the auxiliary groove (213) inside the auxiliary plate (22) becomes magnetic, thereby discharging the meter with the same... A magnetic auxiliary block (216) is used to rotate the auxiliary block (216) to the top of the energy meter. Then, the controllable magnetic pole block (210) on the circumference of the rotating column (27) is activated, so that the controllable magnetic pole block (210) is charged and repels the cam (28). The cam (28) slides along the limit bar (29) and abuts against the positioning guide block (26). Then, as the positioning guide block (26) moves upward under the drive of the positioning guide rail (2), the cam (28) meshes with the rack plate (211) and rotates, thereby driving the positioning frame (21) to rotate. After the flip is completed, the controllable magnetic pole block (210) is activated, so that the controllable magnetic pole block (210) magnetically attracts the cam (28). As the positioning guide block (26) moves downward, the cam (28) disengages from the rack plate (211), thereby completing the flip operation.

9. The switch-embedded energy meter testing fixture according to claim 4, characterized in that: The two sets of positioning frames (21) arranged symmetrically are the same number of energy meters limited by the eccentric wheel (12) and the limiting plate (13), so that the flipping component works in conjunction with the eccentric wheel (12).

10. The switch-embedded energy meter testing fixture according to claim 7, characterized in that: After the electricity meter is flipped over, its back is facing up, and the positioning frame (21) is at the top of the positioning guide rail (2). The connecting guide rail (24) is activated, and the connecting guide rail (24) activates the sliding plate (218) that is slidably connected to its lower surface. The sliding plate (218) drives the cleaning roller (217) on the lower surface of the cleaning plate (25) to clean the back of the flipped electricity meter. During the movement of the cleaning plate (25) driven by the sliding plate (218), the storage box (219) fixed to the upper surface of the cleaning plate (25) will have a cone plate (221) on one side of the storage box (219) interact with the side of the connecting guide rail (24). Several fixed cone blocks (220) abut against each other one by one, and the cone blocks (220) periodically squeeze the cone plate (221). When the cone plate (221) is squeezed, it squeezes the spring (222), and at the same time, the cone plate (221) retracts into the limiting groove (227). At this time, the positioning hole (223) on the surface of the cone plate (221) gradually connects with the auxiliary hole (224) inside the storage box (219) and the fixing hole (225) on the upper surface of the cleaning plate (25), so that the cleaning liquid in the storage box (219) flows into the positioning cavity (226) to wet the cleaning roller (217) and perform cleaning work.

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