Inspection system and method of electric energy metering device

Abstract

The invention discloses an inspection system and method for an electric energy metering device, and belongs to the technical field of inspection of electric energy metering devices. An inspection system of an electric energy metering device comprises a detection table and further comprises a guide rail, a fixed seat is installed on the guide rail, a driving part for driving the fixed seat to slide along the guide rail is arranged in the guide rail, and a clamping part for fixing the electric energy metering device to be detected is arranged in the fixed seat; the detection assembly is arranged on the detection table, and the detection assembly is used for detecting the to-be-detected electric energy metering device; according to the invention, gas is continuously accumulated in the gas storage tank through the repulsion effect between the magnetic plate and the piston plate, and is finally filled into the driving box along the second gas pipe, so that the driving impeller is pushed to drive the cleaning roller to rotate, the surface of the inspection connection gasket of the electric energy metering device is subjected to friction cleaning, and an oxide layer is effectively prevented from appearing on the surface of the gasket; and the cleanliness of the surface of the gasket is ensured, so that the connection effect is improved, and the inspection precision is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of power metering device inspection, and particularly to an inspection system and method for a power metering device. Background Art

[0002] A power metering device is an effective tool for measuring electric energy and is the only means for the three parties of power generation, power supply, and power consumption to conduct power supply and consumption trade settlements. The accuracy of the power metering device is directly related to the economic interests of the three parties of power generation, power supply, and power consumption. Therefore, relevant national metrology regulations stipulate that the accuracy of the power metering device must be regularly inspected.

[0003] Currently, when inspecting a power metering device, the inspection work is usually carried out after connecting the detection line end of the detector to the power connection end of the power metering device. However, during the inspection process, impurities and oxide layers will exist on the power connection end of the used power metering device, which will reduce the connection effect and lead to a decrease in inspection accuracy; moreover, currently, alligator clips are commonly used by the detector to fix the power connection end of the power metering device, and the conductive effect is average, and the power connection is prone to interruption, resulting in a decrease in inspection accuracy. Therefore, an inspection system and method for a power metering device are proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that impurities and oxide layers mostly exist on the power connection end of the used power metering device in the prior art, which will reduce the connection effect and lead to a decrease in inspection accuracy, and to propose an inspection system and method for a power metering device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] An inspection system for a power metering device, including a detection table, and further including: a guide rail, on which a fixed seat is installed. Among them, a driving part for driving the fixed seat to slide along the guide rail is arranged in the guide rail, and a clamping part for fixing the power metering device to be detected is arranged in the fixed seat; a detection component, which is arranged on the detection table and is used for detecting the power metering device to be detected; a cleaning component, which is arranged on the detection table and is used for cleaning the connection terminal contacts of the power metering device to be detected.

[0007] In order to improve the connection effect of the telescopic probe rod, preferably, the detection assembly includes a mounting frame, which is mounted on the top of the guide rail, and the bottom of the mounting frame is fixedly connected to the top of the detection platform, the top of the mounting frame is fixedly connected with a lifting sleeve, the side wall of the lifting sleeve is provided with a lifting groove, the lifting sleeve is rotatably connected with a first screw rod, a lifting slider is threadedly sleeved on the first screw rod, the end of the lifting slider passes through the lifting groove and is fixedly connected with a mounting plate, and the side wall of the lifting slider is in contact with the inner wall of the lifting groove, and a tester is fixedly connected to the mounting plate, two telescopic probe rods are installed on both sides of the bottom of the tester, the top of the lifting sleeve is fixedly connected with a lifting motor, and the output end of the lifting motor is fixedly connected to the top of the first screw rod.

[0008] Furthermore, a positioning ring is fixedly connected to the upper part of the cylindrical wall of the lifting sleeve, and the side of the positioning ring close to the lifting groove is open. A movable ring is rotatably connected to the positioning ring, and a paste storage box is fixedly connected to the side wall of the positioning ring. The side of the positioning ring that is symmetrical to the paste storage box is also open. Plug interfaces are provided on both sides of the top of the paste storage box, and the plug interfaces on both sides are respectively aligned with the telescopic probe rods on both sides, and a transposition part for driving the movable ring to rotate is provided on the lifting sleeve.

[0009] In order to facilitate the downward movement of the telescopic probe rod, further, the transposition part includes a rotating ring, which is sleeved on the outside of the first screw rod, and the rotating ring is rotatably connected to the top of the lifting slider, the top of the first screw rod is fixedly connected with paddles on both sides, and the inner wall of the rotating ring is provided with paddle grooves on both sides, and the upper part of the side wall of the lifting sleeve is provided with a linkage groove, and the side wall of the lifting sleeve is rotatably connected with a linkage shaft through a bearing seat, and the outer wall of the linkage shaft is fixedly connected with a friction wheel, and the friction wheel extends into the lifting sleeve through the linkage groove, and the bottom end of the linkage shaft is fixedly connected with a driving gear, and the bottom of the cylindrical wall of the lifting sleeve is rotatably connected with a driven gear, the driving gear and the driven gear are meshedly connected, and the top of the driven gear is fixedly connected with a bending rod on both sides, and the other end of the bending rod is fixedly connected to the side wall of the movable ring.

[0010] In order to improve the detection stability, preferably, the driving part includes a second screw rod, the second screw rod is rotatably connected in the guide rail, the second screw rod is fixedly connected with a translation slider, the guide rail is slidably connected with a moving seat, both sides of the moving seat are respectively inserted into the guide rail and fixedly connected with the side walls of the translation slider, and the fixed seat is fixedly connected to the top of the moving seat, the end of the guide rail is fixedly connected with a translation motor, and the output shaft of the translation motor is fixedly connected to the end of the second screw rod.

[0011] Further, the clamping portion includes four groups of clamping grooves which are symmetrically arranged at the top of the fixed seat. A clamping plate is slidably connected in the clamping groove. Spring telescopic rods are fixedly connected to the peripheral side walls of the fixed seat. The telescopic ends of the spring telescopic rods penetrate into the clamping groove and are fixedly connected to the side wall of the clamping plate. An air collecting groove is arranged inside the fixed seat and the moving seat. An inflation sleeve is fixedly connected in the guide rail. The second lead screw penetrates through the middle of the inflation sleeve. A pressure plate is slidably connected in the inflation sleeve. A first spring is fixedly connected between the side wall of the pressure plate and the inner wall of the inflation sleeve. The top of the inflation sleeve is fixedly connected and communicated with a first air pipe. The other end of the first air pipe is communicated with the inner cavity of the air collecting groove. The bottom of the inner cavity of the spring telescopic rod is fixedly connected and communicated with a guide pipe. The other end of the guide pipe is communicated with the inner cavity of the air collecting groove.

[0012] To improve the inspection accuracy, preferably, the cleaning assembly includes two driving boxes. An electric push rod is fixedly connected to the mounting frame. The telescopic end of the electric push rod is fixedly connected with a bearing plate. The two driving boxes are fixed on the top of the bearing plate. Cleaning rollers are rotatably connected in the two driving boxes. The two cleaning rollers respectively penetrate through the mounting frame from both sides and extend below the telescopic probe rod. Driving impellers are fixedly connected to the outer walls of the cleaning rollers located in the driving boxes. And a pneumatic part for driving the driving impellers to rotate is arranged inside the mounting frame.

[0013] Further, the pneumatic part includes a pneumatic chamber which is arranged inside the mounting frame. The second lead screw passes through the center of the pneumatic chamber. Piston chambers are arranged on both sides of the pneumatic chamber. A piston plate is slidably connected in the piston chamber. A second spring is fixedly connected between the side wall of the piston plate and the inner wall of the piston chamber. A magnetic plate is fixedly connected to the second lead screw located in the pneumatic chamber. And the magnetic plate and the piston plate repel each other magnetically. A gas storage tank is fixedly connected to the top of the detection table. The piston chamber is communicated with the gas storage tank through an inflation pipe. And a one-way valve is arranged in the inflation pipe. The two sides of the top of the gas storage tank are fixedly connected and communicated with second air pipes. The other ends of the second air pipes are communicated with the inner top of the driving boxes. Air inlet pipes are fixedly connected to both sides of the mounting frame. The air inlet pipes are communicated with the inner cavity of the piston chamber. And a one-way valve is arranged in the air inlet pipe.

[0014] To facilitate air storage and improve the impact force, even further, the middle section of the second air pipe is arranged as a flexible pipe. And a switching box is fixedly connected to the second air pipe. A switching plate is slidably connected in the switching box. And an air vent groove is arranged on the switching plate. A third spring is fixedly connected between the side wall of the switching plate and the inner wall of the switching box. A contact plate is slidably connected inside the mounting frame. The end of the contact plate penetrates through the mounting frame and is aligned with the end of the switching plate.

[0015] A method for testing an electric energy metering device comprises the following steps:

[0016] Step 1: Move the electric energy metering device to be tested into the testing area and fix it;

[0017] Step 2: Clean the terminal contacts of the electric energy metering device to be tested;

[0018] Step 3: Process the contact end of the telescopic probe;

[0019] Step 4: Inspect the electric energy metering device to be tested.

[0020] Compared with the prior art, the present invention provides a testing system and method for an electric energy metering device, which has the following beneficial effects:

[0021] 1. The inspection system of the electric energy metering device continuously accumulates gas in the air storage box through the repulsion between the magnetic plate and the piston plate, and finally fills it into the driving box along the second air pipe, thereby driving the driving impeller to rotate with the cleaning roller, and then frictionally cleaning the surface of the inspection connection gasket of the electric energy metering device, effectively avoiding the appearance of an oxide layer on the gasket surface, ensuring the cleanliness of the gasket surface, thereby improving the connection effect and ensuring the inspection accuracy.

[0022] 2. The inspection system of the electric energy metering device realizes the rotation of the paste storage box through the cooperation of the paddle and the paddle slot when the lifting slider slides up and down along the first screw rod, so that the telescopic probe rod can be inserted into the paste storage box in the initial state to dip in the conductive paste, thereby improving the subsequent inspection connection effect, ensuring the inspection accuracy, and improving its durability by protecting the telescopic probe rod.

[0023] 3. The inspection system of the electric energy metering device, through the squeezing effect of the translation slider on the inflatable pressure plate and the setting of the first spring, can automatically clamp the electric energy metering device during the inspection process, thereby improving the stability of the inspection. After the inspection is completed, the electric energy metering device can be automatically released from the clamping, thereby ensuring the safety of the inspection and improving the inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 The overall structure of the inspection system of the electric energy metering device proposed by the present invention is shown in FIG. Figure 1 ;

[0025] Figure 2 The overall structure of the inspection system of the electric energy metering device proposed by the present invention is shown in FIG. Figure 2 ;

[0026] Figure 3 A schematic diagram of a front view and a half-section structure of a test system for an electric energy metering device proposed by the present invention;

[0027] Figure 4 For the Figure 3 schematic enlarged structure diagram of area A in

[0028] Figure 5 schematic enlarged partial structure diagram of the fixing base of a test system for an electric energy metering device proposed by the present invention;

[0029] Figure 6 schematic side view semi-sectional structure diagram of a test system for an electric energy metering device proposed by the present invention;

[0030] Figure 7 schematic internal structure diagram of the driving box of a test system for an electric energy metering device proposed by the present invention;

[0031] Figure 8 schematic internal structure diagram of the inflatable sleeve of a test system for an electric energy metering device proposed by the present invention;

[0032] Figure 9 schematic internal structure diagram of the switching box of a test system for an electric energy metering device proposed by the present invention;

[0033] Figure 10 For the Figure 9 schematic enlarged structure diagram of area B in

[0034] In the figure: 1, detection table; 2, guide rail; 21, fixing base; 3, mounting rack; 31, lifting sleeve; 32, lifting groove; 33, first lead screw; 331, dial; 34, lifting slider; 35, mounting plate; 36, tester; 361, telescopic probe; 37, lifting motor; 4, positioning ring; 41, movable ring; 42, paste storage box; 421, insertion interface; 43, rotating ring; 431, dialing groove; 44, linkage groove; 45, linkage shaft; 451, friction wheel; 452, driving gear; 46, driven gear; 461, bent rod; 5, second lead screw; 51, translation slider; 52, moving seat; 53, translation motor; 6, clamping groove; 61, clamping plate; 62, spring telescopic rod; 621, air duct; 63, air collecting groove; 64, inflatable sleeve; 641, inflation pressure plate; 642, first spring; 65, first air pipe; 7, driving box; 71, electric push rod; 72, bearing plate; 73, cleaning roller; 74, driving impeller; 75, air pressure chamber; 76, piston chamber; 761, piston plate; 762, second spring; 763, magnetic plate; 77, air storage tank; 771, inflation pipe; 772, second air pipe; 78, air inlet pipe; 8, switching box; 81, switching plate; 811, ventilation groove; 82, third spring; 83, abutting plate. Detailed implementation manners

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0037] Embodiment 1:

[0038] Referring to Figures 1 - 10 , an inspection system for an electric energy metering device, including a detection table 1, further including: a guide rail 2, on which a fixed seat 21 is installed. Among them, a driving part for driving the fixed seat 21 to slide along the guide rail 2 is arranged in the guide rail 2, and a clamping part for fixing the electric energy metering device to be detected is arranged in the fixed seat 21; a detection component, which is arranged on the detection table 1 and is used for detecting the electric energy metering device to be detected; a cleaning component, which is arranged on the detection table 1 and is used for cleaning the terminal contacts of the electric energy metering device to be detected.

[0039] Referring to Figures 1 - 4 , Figure 6, wherein, the detection component includes a mounting frame 3, the mounting frame 3 is erected on the top of the guide rail 2, and the bottom of the mounting frame 3 is fixedly connected to the top of the detection table 1. A lifting sleeve 31 is fixedly connected to the top of the mounting frame 3. A lifting groove 32 is formed in the side wall of the lifting sleeve 31. A first lead screw 33 is rotatably connected inside the lifting sleeve 31. A lifting slider 34 is threadedly sleeved on the first lead screw 33. The end of the lifting slider 34 penetrates through the lifting groove 32 and is fixedly connected to a mounting plate 35. The side wall of the lifting slider 34 is in contact with the inner wall of the lifting groove 32. A detector 36 is fixedly connected to the mounting plate 35. Two telescopic probe rods 361 are installed on both sides of the bottom of the detector 36. A lifting motor 37 is fixedly connected to the top of the lifting sleeve 31. The output end of the lifting motor 37 is fixedly connected to the top end of the first lead screw 33; an positioning ring 4 is fixedly connected to the upper part of the cylindrical wall of the lifting sleeve 31. One side of the positioning ring 4 close to the lifting groove 32 is open. A movable ring 41 is rotatably connected to the positioning ring 4. A paste storage box 42 is fixedly connected to the side wall of the positioning ring 4. The side of the positioning ring 4 symmetrical to the paste storage box 42 is also open. Plug-in ports 421 are formed on both sides of the top of the paste storage box 42. The two plug-in ports 421 on both sides are respectively aligned with the two telescopic probe rods 361 on both sides. And a position-changing part for driving the movable ring 41 to rotate is arranged on the lifting sleeve 31; the position-changing part includes a rotating ring 43, the rotating ring 43 is sleeved outside the first lead screw 33, and the rotating ring 43 is rotatably connected to the top of the lifting slider 34. Two shifting pieces 331 are fixedly connected to both sides of the top of the first lead screw 33. Grooves 431 are formed on both sides of the inner wall of the rotating ring 43. A linkage groove 44 is formed in the upper part of the side wall of the lifting sleeve 31. A linkage shaft 45 is rotatably connected to the side wall of the lifting sleeve 31 through a bearing seat. A friction wheel 451 is fixedly connected to the outer wall of the linkage shaft 45. The friction wheel 451 penetrates through the linkage groove 44 and extends into the lifting sleeve 31. A driving gear 452 is fixedly connected to the bottom end of the linkage shaft 45. A driven gear 46 is rotatably connected to the bottom of the cylindrical wall of the lifting sleeve 31. The driving gear 452 is meshed with the driven gear 46. Two bending rods 461 are fixedly connected to both sides of the top of the driven gear 46. The other ends of the bending rods 461 are fixedly connected to the side wall of the movable ring 41.

[0040] It should be noted that each time the lifting motor 37 rotates, the lifting slider 34 maintains the same stroke trajectory. First (as shown in Figure 3 ), it is the initial position. When the lifting motor 37 is turned on, the lifting slider 34 first slides upward. After reaching the top end of the first lead screw 33, it keeps moving downward until it reaches the inspection position at the bottom end. At this time, the lifting motor 37 is turned off for inspection work. After the inspection work is completed, the lifting motor 37 is turned on again. At this time, the lifting slider 34 will move along the first lead screw 33 until it reaches the top end, and then slide downward again to (as shown in Figure 3The position shown in the figure above is the fixed stroke trajectory of the lifting slider 34 when a test is completed. Additionally, each time the friction wheel 451 rotates frictionally with the rotating ring 43, the movable ring 41 exactly rotates 180 degrees along the rotational connection on the positioning ring 4. That is to say, the movable ring 41 will drive the paste storage box 42 to switch positions along the symmetric side of the lifting sleeve 31 directly below and directly below the telescopic probe 361.

[0041] Through the setting of the above structure, the lifting motor 37 drives the first lead screw 33 to rotate. First, the lifting slider 34 drives the tester 36 to move upward. At this time, the telescopic probe 361 is pulled out from the paste storage box 42, and conductive paste adheres to the bottom end of the telescopic probe 361. During the upward movement of the lifting slider 34, the dial 331 will insert into the dial groove 431 in the rotating ring 43 that moves upward together with the lifting slider 34. At this time, the dial 331 rotates with the first lead screw 33, which will drive the rotating ring 43 to rotate around the first lead screw 33. At the same time, due to the action of friction, the rotating ring 43 will drive the friction wheel 451 to rotate. Then, through the transmission of the linkage shaft 45 and the drive gear 452, the driven gear 46 rotates. At the same time, the bent rod 461 is used to pull the movable ring 41 to rotate along the positioning ring 4, so as to drive the paste storage box 42 away from below the telescopic probe 361. During the movement of the paste storage box 42, due to the action of rotational centrifugal force, the conductive paste inside it can also be mixed with each other, avoiding sedimentation or local caking, ensuring the use effect of the conductive paste. When the bottom end of the telescopic probe 361 fits on the test connection gasket surface of the electric energy metering device, the conductive paste adhering to the bottom end of the telescopic probe 361 will tightly wrap the connection between the telescopic probe 361 and the test gasket, forming an effective conductive area, avoiding the occurrence of current interruption during the detection process, and improving the detection accuracy.

[0042] Refer to Figures 1 - 5, wherein the driving part includes a second lead screw 5, the second lead screw 5 is rotatably connected inside the guide rail 2, a translation slider 51 is fixedly connected to the second lead screw 5, a moving seat 52 is slidably connected to the guide rail 2, and both sides of the moving seat 52 are inserted into the guide rail 2 and fixedly connected to the side wall of the translation slider 51. A fixed seat 21 is fixedly connected to the top of the moving seat 52. A translation motor 53 is fixedly connected to the end of the guide rail 2, and the output shaft of the translation motor 53 is fixedly connected to the end of the second lead screw 5; the clamping part includes four groups of clamping grooves 6, the four groups of clamping grooves 6 are symmetrically arranged on the top of the fixed seat 21, a clamping plate 61 is slidably connected inside the clamping groove 6, and spring telescopic rods 62 are fixedly connected to the peripheral side walls of the fixed seat 21. The telescopic ends of the spring telescopic rods 62 penetrate into the clamping groove 6 and are fixedly connected to the side wall of the clamping plate 61. An air collecting groove 63 is arranged inside the fixed seat 21 and the moving seat 52. An inflatable sleeve 64 is fixedly connected inside the guide rail 2. The second lead screw 5 penetrates through the middle of the inflatable sleeve 64. An inflatable pressure plate 641 is slidably connected inside the inflatable sleeve 64. A first spring 642 is fixedly connected between the side wall of the inflatable pressure plate 641 and the inner wall of the inflatable sleeve 64. The top of the inflatable sleeve 64 is fixedly connected and communicated with a first air pipe 65, and the first air pipe 65 is a flexible pipe. The other end of the first air pipe 65 is communicated with the inner cavity of the air collecting groove 63. The bottom of the inner cavity of the spring telescopic rod 62 is fixedly connected and communicated with a guide air pipe 621, and the other end of the guide air pipe 621 is communicated with the inner cavity of the air collecting groove 63.

[0043] With the above structure, during the sliding process of the translation slider 51, the inflatable pressure plate 641 will be squeezed, causing the inflatable pressure plate 641 to slide towards the side that compresses the first spring 642, thereby compressing the gas inside the inflatable sleeve 64, making the gas enter the air collecting groove 63 along the first air pipe 65, and then being respectively filled into the four groups of spring telescopic rods 62 through four guide air pipes 621, so that the telescopic ends of the spring telescopic rods 62 extend, and push the clamping plate 61 to approach the side wall of the electric energy metering device along the clamping groove 6. Finally, the electric energy metering device is clamped and positioned by the four groups of clamping plates 61. This first ensures the stability of the electric energy metering device during subsequent inspections. Secondly, when the translation slider 51 moves in the reverse direction along the second lead screw 5 later, the extrusion on the inflatable pressure plate 641 will be released. Under the rebounding action of the first spring 642, the gas filled into the spring telescopic rod 62 will flow back into the inflatable sleeve 64. At this time, the spring telescopic rod 62 will retract, thus releasing the clamping of the electric energy metering device. In this way, the clamping and loosening of the electric energy metering device are realized automatically, which is more convenient for inspection and use and improves the inspection efficiency.

[0044] Refer to Figures 1 - 3 , Figures 6 - 10, wherein the cleaning component includes two groups of driving boxes 7. An electric push rod 71 is fixedly connected to the mounting frame 3. The telescopic end of the electric push rod 71 is fixedly connected to a bearing plate 72. The two groups of driving boxes 7 are fixed on the top of the bearing plate 72. A cleaning roller 73 is rotatably connected in each of the two groups of driving boxes 7. The two cleaning rollers 73 respectively penetrate through the mounting frame 3 from both sides and extend below the telescopic probe 361. A driving impeller 74 is fixedly connected to the outer wall of the cleaning roller 73 located in the driving box 7. And a pneumatic part for driving the driving impeller 74 to rotate is arranged in the mounting frame 3; the pneumatic part includes a pneumatic chamber 75 which is opened in the mounting frame 3. The second lead screw 5 passes through the center of the pneumatic chamber 75. Piston chambers 76 are opened on both sides of the pneumatic chamber 75. A piston plate 761 is slidably connected in the piston chamber 76. A second spring 762 is fixedly connected between the side wall of the piston plate 761 and the inner wall of the piston chamber 76. A magnetic plate 763 is fixedly connected to the second lead screw 5 located in the pneumatic chamber 75. And the magnetic plate 763 and the piston plate 761 are magnetically repulsive. A gas storage tank 77 is fixedly connected to the top of the detection table 1. The piston chamber 76 is communicated with the gas storage tank 77 through a charging pipe 771. And a one-way valve is arranged in the charging pipe 771. Second air pipes 772 are fixedly connected and communicated to both sides of the top of the gas storage tank 77. The other ends of the second air pipes 772 are communicated with the inner top of the driving box 7. Air inlet pipes 78 are fixedly connected to both sides of the mounting frame 3. The air inlet pipes 78 are communicated with the inner cavity of the piston chamber 76. And a one-way valve is arranged in the air inlet pipe 78; the middle section of the second air pipe 772 is arranged as a flexible pipe. And a switching box 8 is fixedly connected to the second air pipe 772. A switching plate 81 is slidably connected in the switching box 8. A third spring 82 is fixedly connected between the side wall of the switching plate 81 and the inner wall of the switching box 8. And an air vent groove 811 is opened on the switching plate 81. A contact plate 83 is slidably connected in the mounting frame 3. The end of the contact plate 83 penetrates through the mounting frame 3 and is aligned with the end of the switching plate 81.

[0045] It should be noted that the one-way valve in the charging pipe 771 can only allow the gas in the piston chamber 76 to enter the gas storage tank 77; the one-way valve in the air inlet pipe 78 can only allow the external air flow to supplement the piston chamber 76; in addition, exhaust holes are arranged on the side wall of the driving box 7 for discharging the air flow charged into the driving box 7 to ensure the continuous flow of the gas in the driving box 7 and realize the driving of the driving impeller 74.

[0046] By setting the above structure, during the rotation of the second screw rod 5, the repulsive effect between the magnetic plate 763 and the piston plate 761 will cause the piston plate 761 to slide toward the side of the compressed second spring 762, thereby compressing the gas in the piston chamber 76 and opening the one-way valve in the inflation pipe 771, so that the compressed gas in the piston chamber 76 is filled into the air storage box 77. When the magnetic plate 763 and the piston plate 761 are separated from the repulsive area, the second spring 762 will rebound and pull the piston plate 761 to reset, thereby generating a suction effect in the piston chamber 76, thereby opening the one-way valve in the intake pipe 78, so that the external airflow is supplemented into the piston chamber 76, and so on and so forth, which can continuously increase the air volume in the air storage box 77. When the fixing seat 21 moves toward the mounting bracket 3 in the final stage, the end of the spring telescopic rod 62 will squeeze the contact plate 83, and then the two ends of the contact plate 83 will squeeze the switching plate 81, so that the switching plate 81 moves toward the side of the compressed third spring 82, and finally the ventilation groove 811 and the second air pipe 772 are in a connected state. At this time, the high-pressure airflow in the air storage box 77 will instantly flow into the drive box 7 along the second air pipe 772, thereby driving the driving impeller 74 to rotate with the cleaning roller 73, and then frictionally cleaning the surface of the inspection connection gasket of the electric energy metering device, effectively avoiding the appearance of an oxide layer on the gasket surface, ensuring the cleanliness of the gasket surface, thereby improving the connection effect and ensuring the inspection accuracy.

[0047] Embodiment 2:

[0048] Reference Figures 1 - 10 , which is basically the same as the first embodiment, and based on the first embodiment, a method for testing an electric energy metering device is proposed, comprising the following steps:

[0049] Step 1: Move the electric energy metering device to be tested into the testing area and fix it;

[0050] Step 2: Clean the terminal contacts of the electric energy metering device to be tested;

[0051] Step 3: Processing the contact end of the telescopic probe 361;

[0052] Step 4: Inspect the electric energy metering device to be tested.

[0053] Reference Figures 1 - 10, in the present invention, during use, first place the detection power metering device on the top of the fixed seat 21, then turn on the translation motor 53 to drive the second lead screw 5 to rotate, so that the translation slider 51 drives the moving seat 52 to slide downward along the guide rail 2 under the tester 36. During the sliding process of the translation slider 51, the air charging pressing plate 641 will be squeezed, causing the air charging pressing plate 641 to slide towards the side of compressing the first spring 642, thereby compressing the gas in the air charging sleeve 64. The gas will enter the air collecting groove 63 along the first air pipe 65, and then be respectively filled into the four sets of spring telescopic rods 62 through the four air guide pipes 621, so that the telescopic ends of the spring telescopic rods 62 extend, and the clamping plates 61 are pushed to approach the side wall of the power metering device along the clamping groove 6. Finally, the power metering device is clamped and positioned by the four sets of clamping plates 61. This first ensures the stability of the power metering device during subsequent inspections. Secondly, when the translation slider 51 moves in the reverse direction along the second lead screw 5 later, the extrusion of the air charging pressing plate 641 will be released. Under the resilience of the first spring 642, the gas filled into the spring telescopic rod 62 will flow back into the air charging sleeve 64. At this time, the spring telescopic rod 62 will retract, thus releasing the clamping of the power metering device. In this way, the clamping and relaxation of the power metering device are realized automatically, which is more convenient for inspection and improves the inspection efficiency.

[0054] When the inspection connection gasket on the electric energy metering device moves to just below the telescopic probe rod 361, the translation motor 53 stops working, and at this time the two sets of cleaning rollers 73 are just plugged into the surface of the inspection connection gasket on the electric energy metering device. During the rotation of the second screw rod 5, the repulsion between the magnetic plate 763 and the piston plate 761 will cause the piston plate 761 to slide toward the side of the compressed second spring 762, thereby compressing the gas in the piston chamber 76 and opening the one-way valve in the inflation pipe 771, so that the compressed gas in the piston chamber 76 is filled into the air storage box 77. When the magnetic plate 763 and the piston plate 761 are separated from the repulsive area, the second spring 762 will rebound and pull the piston plate 761 to reset, thereby generating a suction effect in the piston chamber 76, thereby opening the one-way valve in the intake pipe 78, so that The external airflow is replenished into the piston chamber 76, and this reciprocating process can continuously increase the air pressure in the air storage box 77. When the fixed seat 21 moves toward the mounting bracket 3 in the final stage, the end of the spring telescopic rod 62 will squeeze the contact plate 83, and then the two ends of the contact plate 83 will squeeze the switching plate 81, so that the switching plate 81 moves toward the side of the compressed third spring 82, and finally the ventilation groove 811 and the second air pipe 772 are in a connected state. At this time, the high-pressure airflow in the air storage box 77 will instantly flow into the drive box 7 along the second air pipe 772, thereby driving the driving impeller 74 to rotate with the cleaning roller 73, and then frictionally cleaning the surface of the inspection connection gasket of the electric energy metering device, effectively avoiding the appearance of an oxide layer on the gasket surface, ensuring the cleanliness of the gasket surface, thereby improving the connection effect and ensuring the inspection accuracy.

[0055] Subsequently, the lifting motor 37 drives the first lead screw 33 to rotate. At the same time, the electric push rod 71 extends to push the bearing plate 72 to move, so that the driving box 7 drives the cleaning roller 73 away from the electric energy metering device, so that the telescopic probe 361 can move downward subsequently to contact the inspection connection gasket of the electric energy metering device. First, the lifting slider 34 drives the tester 36 to move upward. At this time, the telescopic probe 361 is pulled out of the paste storage box 42, and conductive paste adheres to the bottom end of the telescopic probe 361. During the upward movement of the lifting slider 34, the dial 331 will insert into the dial groove 431 in the rotating ring 43 that moves upward together with the lifting slider 34. At this time, the dial 331 rotates following the first lead screw 33, which will drive the rotating ring 43 to rotate around the first lead screw 33. At the same time, due to the action of friction, the rotating ring 43 will drive the friction wheel 451 to rotate. Then, through the transmission of the linkage shaft 45 and the driving gear 452, the driven gear 46 rotates. At the same time, the bending rod 461 is used to pull the movable ring 41 to move along the positioning ring 4, so as to drive the paste storage box 42 away from the lower part of the telescopic probe 361. During the movement of the paste storage box 42, due to the action of rotational centrifugal force, the conductive paste inside it can also be mixed with each other, avoiding sedimentation or local caking, ensuring the use effect of the conductive paste. Subsequently, the lifting slider 34 moves downward along the first lead screw 33. When the dial groove 431 disengages from the dial 331, the opening of the movable ring 41 coincides exactly with the opening of the positioning ring 4, thus realizing the avoidance of the paste storage box 42 and ensuring the smooth operation of the device. At this time, the lifting slider 34 drives the tester 36 to move downward through the above-mentioned opening position until the bottom end of the telescopic probe 361 fits on the surface of the inspection connection gasket of the electric energy metering device. At this time, the conductive paste adhering to the bottom end of the telescopic probe 361 will tightly wrap the connection between the telescopic probe 361 and the inspection gasket, forming an effective conductive area, avoiding the occurrence of current interruption during the detection process, and improving the detection accuracy. Finally, the tester 36 can be turned on to inspect the electric energy metering device; after the inspection is completed, the lifting slider 34 drives the tester 36 to move to the first lead screw 33 and then move downward to the initial position. As described above, during this process, the movable ring 41 will continue to rotate, so that the paste storage box 42 returns to the lower part of the tester 36 again, and finally the telescopic probe 361 is inserted into the conductive paste in the paste storage box 42. In this way, it can ensure the conductive effect of the subsequent connection of the telescopic probe 361, and at the same time, it can protect the conductive connection end of the telescopic probe 361 during the non-use process, avoiding the oxidation or rust of the conductive connection end of the telescopic probe 361, effectively improving the use effect and durability of the telescopic probe 361.

[0056] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, shall be covered by the protection scope of the present invention.

Claims

1. An inspection system for an electric energy metering device, including a detection bench (1), characterized in that It further includes: A guide rail (2), on which a fixed seat (21) is installed. Wherein, a driving part for driving the fixed seat (21) to slide along the guide rail (2) is arranged inside the guide rail (2), and a clamping part for fixing the power metering device to be detected is arranged inside the fixed seat (21); A detection component, which is arranged on the detection table (1) and is used for detecting the power metering device to be detected; A cleaning component, which is arranged on the detection table (1) and is used for cleaning the terminal contacts of the power metering device to be detected; The detection component includes a mounting frame (3), the mounting frame (3) is erected on the top of the guide rail (2), and the bottom of the mounting frame (3) is fixedly connected to the top of the detection table (1). A lifting sleeve (31) is fixedly connected to the top of the mounting frame (3). A lifting groove (32) is formed in the side wall of the lifting sleeve (31). A first lead screw (33) is rotatably connected inside the lifting sleeve (31). A lifting slider (34) is threadedly sleeved on the first lead screw (33). The end of the lifting slider (34) penetrates through the lifting groove (32) and is fixedly connected to a mounting plate (35). The side wall of the lifting slider (34) is in contact with the inner wall of the lifting groove (32). An inspection instrument (36) is fixedly connected to the mounting plate (35). Two telescopic probe rods (361) are installed on both sides of the bottom of the inspection instrument (36). A lifting motor (37) is fixedly connected to the top of the lifting sleeve (31). The output end of the lifting motor (37) is fixedly connected to the top end of the first lead screw (33); A positioning ring (4) is fixedly connected to the upper part of the cylindrical wall of the lifting sleeve (31). One side of the positioning ring (4) close to the lifting groove (32) is open. A movable ring (41) is rotatably connected to the positioning ring (4). A paste storage box (42) is fixedly connected to the side wall of the positioning ring (4). The side of the positioning ring (4) symmetrical to the paste storage box (42) is also open. Plug-in ports (421) are formed on both sides of the top of the paste storage box (42). The two plug-in ports (421) on both sides are respectively aligned with the two telescopic probe rods (361) on both sides. And a position-changing part for driving the movable ring (41) to rotate is arranged on the lifting sleeve (31).

2. The inspection system for an electric energy metering device according to claim 1, characterized in that, The commutation part includes a rotating ring (43). The rotating ring (43) is sleeved outside the first lead screw (33), and the rotating ring (43) is rotatably connected to the top of the lifting slider (34). Both sides of the top of the first lead screw (33) are fixedly connected with paddles (331), and both sides of the inner wall of the rotating ring (43) are provided with paddle grooves (431). The upper part of the side wall of the lifting sleeve (31) is provided with a linkage groove (44). A linkage shaft (45) is rotatably connected to the side wall of the lifting sleeve (31) through a bearing seat. A friction wheel (451) is fixedly connected to the outer wall of the linkage shaft (45). The friction wheel (451) passes through the linkage groove (44) and extends into the lifting sleeve (31). The bottom end of the linkage shaft (45) is fixedly connected with a driving gear (452). A driven gear (46) is rotatably connected to the bottom of the cylindrical wall of the lifting sleeve (31). The driving gear (452) is meshed with the driven gear (46). Both sides of the top of the driven gear (46) are fixedly connected with bent rods (461). The other ends of the bent rods (461) are fixedly connected with the side wall of the movable ring (41).

3. The inspection system for an electric energy metering device according to claim 1, characterized in that, The driving part includes a second lead screw (5). The second lead screw (5) is rotatably connected in the guide rail (2). A translation slider (51) is fixedly connected to the second lead screw (5). A moving seat (52) is slidably connected to the guide rail (2). Both sides of the moving seat (52) are respectively inserted into the guide rail (2) and fixedly connected with the side wall of the translation slider (51). The fixed seat (21) is fixedly connected to the top of the moving seat (52). A translation motor (53) is fixedly connected to the end of the guide rail (2). The output shaft of the translation motor (53) is fixedly connected to the end of the second lead screw (5).

4. The inspection system for an electric energy metering device according to claim 3, characterized in that, The clamping part includes four groups of clamping grooves (6). The four groups of clamping grooves (6) are symmetrically arranged on the top of the fixed seat (21). A clamping plate (61) is slidably connected in the clamping groove (6). Spring telescopic rods (62) are fixedly connected to the peripheral side walls of the fixed seat (21). The telescopic ends of the spring telescopic rods (62) penetrate into the clamping groove (6) and are fixedly connected with the side wall of the clamping plate (61). An air collecting groove (63) is arranged inside the fixed seat (21) and the moving seat (52). An inflatable sleeve (64) is fixedly connected in the guide rail (2). The second lead screw (5) penetrates through the middle of the inflatable sleeve (64). An inflatable pressure plate (641) is slidably connected in the inflatable sleeve (64). A first spring (642) is fixedly connected between the side wall of the inflatable pressure plate (641) and the inner wall of the inflatable sleeve (64). The top of the inflatable sleeve (64) is fixedly connected and communicated with a first air pipe (65). The other end of the first air pipe (65) is communicated with the inner cavity of the air collecting groove (63). A guide air pipe (621) is fixedly connected and communicated with the bottom of the inner cavity of the spring telescopic rod (62). The other end of the guide air pipe (621) is communicated with the inner cavity of the air collecting groove (63).

5. The inspection system for an electric energy metering device according to claim 3, wherein The cleaning component includes two groups of drive boxes (7). An electric push rod (71) is fixedly connected to the mounting frame (3). The telescopic end of the electric push rod (71) is fixedly connected to a bearing plate (72). The two groups of drive boxes (7) are fixed on the top of the bearing plate (72). A cleaning roller (73) is rotatably connected in each of the two groups of drive boxes (7). The two cleaning rollers (73) respectively penetrate through the mounting frame (3) from both sides and extend below the telescopic probe rod (361). A drive impeller (74) is fixedly connected to the outer wall of the cleaning roller (73) located in the drive box (7). And a pneumatic part for driving the drive impeller (74) to rotate is arranged in the mounting frame (3).

6. The inspection system of an electric energy metering device according to claim 5, characterized in that, The pneumatic part includes a pneumatic chamber (75). The pneumatic chamber (75) is opened in the mounting frame (3). The second lead screw (5) passes through the center of the pneumatic chamber (75). Piston chambers (76) are opened on both sides of the pneumatic chamber (75). A piston plate (761) is slidably connected in the piston chamber (76). A second spring (762) is fixedly connected between the side wall of the piston plate (761) and the inner wall of the piston chamber (76). A magnetic plate (763) is fixedly connected to the second lead screw (5) located in the pneumatic chamber (75). And the magnetic plate (763) and the piston plate (761) repel each other magnetically. A gas storage tank (77) is fixedly connected to the top of the detection table (1). The piston chamber (76) is communicated with the gas storage tank (77) through a gas filling pipe (771). And a one-way valve is arranged in the gas filling pipe (771). Second air pipes (772) are fixedly connected and communicated to both sides of the top of the gas storage tank (77). The other ends of the second air pipes (772) are communicated with the inner top of the drive box (7). Air inlet pipes (78) are fixedly connected to both sides of the mounting frame (3). The air inlet pipes (78) are communicated with the inner cavity of the piston chamber (76). And a one-way valve is arranged in the air inlet pipe (78).

7. The inspection system for an electric energy metering device according to claim 6, characterized in that, The middle section of the second air pipe (772) is arranged as a flexible pipe. And a switching box (8) is fixedly connected to the second air pipe (772). A switching plate (81) is slidably connected in the switching box (8). And a ventilation groove (811) is opened on the switching plate (81). A third spring (82) is fixedly connected between the side wall of the switching plate (81) and the inner wall of the switching box (8). A contact plate (83) is slidably connected in the mounting frame (3). The end of the contact plate (83) penetrates through the mounting frame (3) and is aligned with the end of the switching plate (81).

8. A method for inspecting an electric energy metering device, which uses an inspection system for an electric energy metering device according to any one of claims 1-7, characterized in that, Including the following steps: Step 1: Move the power metering device to be detected into the detection area and fix it; Step 2: Clean the contact terminals of the power metering device to be detected; Step 3: Process the contact end of the telescopic probe rod (361); Step 4: Inspect the power metering device to be detected.

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