Insulation test equipment for single-phase smart energy meter

Abstract

The present invention discloses an insulation test device for a single-phase smart electric energy meter, which belongs to the field of electric energy meter testing. An insulation test device for a single-phase smart electric energy meter includes a detection base and a resistance detector fixed on the top thereof, a positioning groove is provided on the top of the detection base, an adjustment base is fixedly connected to the top of the detection base, a wiring part connected to the positive pole of the electric energy meter is arranged in the adjustment base, and also includes: a test component, the test component is arranged on the detection base, and the test component is used to measure the insulation resistance value of the electric energy meter; the present invention uses the magnetic relationship between the magnetic plate and the piston plate, and cooperates with the setting of the second spring, so that multiple groups of negative pole probes are attached to the surface of the metal shell of the electric energy meter to be tested, and under the rotation of the reciprocating screw, the multiple groups of negative pole probes are attached to the surface of the metal shell of the electric energy meter to be tested and move, and the insulation resistance value of each part of the metal shell of the electric energy meter is fully detected, which effectively improves the accuracy of the detection result.

Description

Technical Field

[0001] The invention relates to the technical field of electric energy meter testing, and in particular to insulation testing equipment for a single-phase intelligent electric energy meter. Background Art

[0002] Smart energy meters are one of the basic devices for smart grid data collection. They are responsible for collecting, measuring and transmitting raw energy data, and are the basis for information integration, analysis optimization and information presentation. In order to ensure the safe use of smart energy meters, the insulation performance of smart energy meters needs to be tested before use.

[0003] At present, the existing insulation test equipment can only test a certain point or area of ​​the smart energy meter at a time. The test points or areas are few and not representative, which reduces the accuracy of the test results. In addition, the long-term exposure of the metal shell of the smart energy meter is likely to block the test end, which reduces the accuracy of the final test results. Therefore, an insulation test device for a single-phase smart energy meter is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the test points or areas in the prior art are small and not representative, and a certain amount of dust may adhere to the metal shell of the smart electric energy meter, which may easily block the test end and reduce the accuracy of the final test results. An insulation test device for a single-phase smart electric energy meter is proposed.

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

[0006] An insulation test device for a single-phase smart electric energy meter comprises a detection base and a resistance detector fixed on the top thereof, wherein a positioning groove is provided on the top of the detection base, an adjustment base is fixedly connected to the top of the detection base, a wiring portion connected to the positive pole of the electric energy meter is arranged in the adjustment base, and further comprises: a test component, which is arranged on the detection base and is used to measure the insulation resistance value of the electric energy meter; and a cleaning component, which is arranged on the detection base and is used to clean the metal shell of the electric energy meter to be tested.

[0007] In order to improve the stability of the electric energy meter during detection, preferably, the wiring part includes a sliding seat, the sliding seat is slidably connected in the adjustment seat, a wiring terminal is fixedly connected to one side of the sliding seat close to the positioning groove, the wiring terminal is electrically connected to the resistance detector, and a first spring is fixedly connected between both sides of the sliding seat and the inner wall of the adjustment seat.

[0008] In order to facilitate comprehensive detection, preferably, the test assembly includes an arched box, and limiting slide grooves are provided on both sides of the positioning groove at the top of the detection base, a reciprocating screw rod is rotatably connected in the limiting slide groove on one side, and a guide slide rod is fixedly connected in the limiting slide groove on the other side, a driving slider is threadedly sleeved on the reciprocating screw rod, and a driven slider is slidably sleeved on the guide slide rod, the two ends of the arched box are respectively fixedly connected to the driving slider and the top of the driven slider, a first inflation groove is provided on the side walls of the vertical sections on both sides of the arched box, and a second inflation groove is provided on the top horizontal section of the arched box, a movable plate is slidably connected in the first inflation groove and the second inflation groove, and a plurality of groups of negative pole probes are fixedly connected to the side of the movable plate close to the positioning groove, the negative pole probe is electrically connected to the resistance detector, and the negative pole probe is made of conductive and soft metal material.

[0009] Furthermore, a power compartment is opened in the detection base, a driving motor is fixedly connected to the side wall of the detection base, the reciprocating screw rod passes through the power compartment and is fixedly connected to the output shaft end of the driving motor, and a reducer is arranged on the outer wall of the reciprocating screw rod.

[0010] In order to improve the detection accuracy, preferably, the cleaning assembly includes two groups of cleaning boxes, the two groups of cleaning boxes are respectively fixed on both sides of the arch box, and the inner cavities of the cleaning boxes on both sides are connected, and dust suction holes are evenly spaced on one side of the cleaning box close to the positioning groove, and an air pressure part for delivering negative pressure suction to the cleaning box is provided in the power compartment.

[0011] Furthermore, the pneumatic part includes a pneumatic box, which is fixed in the power compartment, and piston grooves are provided on both sides of the pneumatic box, and a piston plate is slidably connected in the piston groove, and a second spring is fixedly connected between the side wall of the piston plate and the inner wall of the piston groove, the reciprocating screw passes through the center of the pneumatic box, and a magnetic plate is fixedly connected to the outer wall of the reciprocating screw, and the magnetic plate and the piston plate repel each other magnetically, and air extraction grooves are provided on both sides of the inner cavity of the detection base, and the output ends of the two groups of air extraction grooves are respectively connected to the inner cavities of the two groups of piston grooves, and the input ends of the air extraction grooves on both sides are fixed and connected with an air extraction pipe, the other end of the air extraction pipe is connected to the inner cavity of the cleaning box, and a one-way valve is arranged in the air extraction pipe.

[0012] Furthermore, filter slots are provided on both sides of the inner cavity of the detection base, the filter slots on both sides are connected to two groups of air extraction slots, filter plates are fixedly connected to the two groups of filter slots, and the output ends of the filter slots are arranged to be tilted downward.

[0013] In order to improve the detection effect, preferably, the vertical sections on both sides of the arch box and the top of the horizontal section are fixedly connected with an inflatable box, the inner cavities of the three groups of inflatable boxes are respectively connected with the first inflatable grooves on both sides and the second inflatable grooves on the top, a third spring is fixedly connected between the inner walls of the three groups of inflatable boxes and the three groups of side walls of the movable plates, inflatable bins are opened on both sides of the inner cavity of the detection base, the input ends of the two groups of inflatable bins are respectively connected with the inner cavities of the two groups of piston grooves, and the output ends of the inflatable bins on both sides are fixed and connected with an inflatable tube, the other end of the inflatable tube is connected with the inner cavity of the inflatable box, and a one-way valve is arranged in the inflatable tube.

[0014] In order to facilitate the resetting of the negative electrode probe, preferably, the side wall of the inflation box is fixed and connected to a pressure relief pipe, and a solenoid valve is arranged in the pressure relief pipe.

[0015] In order to improve the representativeness of the test results, preferably, it also includes a sealing cover, a sealing slot is opened on the detection base, the side wall of the sealing cover is inserted into the sealing slot, and the inner top of the sealing cover is fixedly connected with a temperature-controlling copper tube, and the top of the sealing cover is fixedly connected with a temperature regulator, and the working end of the temperature regulator is connected to the temperature-controlling copper tube.

[0016] Compared with the prior art, the present invention provides an insulation test device for a single-phase smart electric energy meter, which has the following beneficial effects:

[0017] 1. The insulation test equipment of the single-phase intelligent electric energy meter, through the magnetic relationship between the magnetic plate and the piston plate, and in conjunction with the setting of the second spring, makes multiple sets of negative pole probes fit on the surface of the metal shell of the electric energy meter to be tested, and under the rotation of the reciprocating screw rod, makes multiple sets of negative pole probes fit on the surface of the metal shell of the electric energy meter to be tested and move, and fully completes the detection of the insulation resistance value of each part of the metal shell of the electric energy meter, effectively improving the accuracy of the detection result;

[0018] 2. The insulation test equipment of the single-phase smart energy meter continuously transmits negative pressure suction to the cleaning box through the magnetic cooperation between the magnetic plate and the piston plate, which drives the airflow around the metal shell of the energy meter to flow quickly, thereby taking away the dust attached to the metal shell of the energy meter, thereby cleaning the metal shell of the energy meter, ensuring the effectiveness of the contact between the negative pole probe and the metal shell of the energy meter, and improving the accuracy of the test results;

[0019] 3. The insulation test equipment of the single-phase smart electric energy meter, through the arrangement of the adjusting seat, the sliding seat, the wiring terminal, the first spring and the positioning groove, enables the wiring terminal to exert a resistance effect on the electric energy meter, so that the electric energy meter stays stably in the positioning groove, thereby ensuring the stability of the electric energy meter in subsequent detection;

[0020] 4. The insulation test equipment of the single-phase smart energy meter adjusts the temperature in the detection area of ​​the sealing cover through a temperature regulator, so that the insulation resistance value of the energy meter can be tested under low temperature, normal temperature and high temperature environments respectively, thereby improving the representativeness of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall disassembly structure of an insulation test device for a single-phase smart electric energy meter proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of a detection base of an insulation test device for a single-phase smart electric energy meter proposed by the present invention;

[0023] Figure 3 A schematic diagram of a partial cross-sectional structure of a detection base of an insulation test device for a single-phase smart electric energy meter proposed by the present invention;

[0024] Figure 4 The present invention provides an insulation test device for a single-phase smart electric energy meter. Figure 3 A schematic diagram of the enlarged structure of the middle A area;

[0025] Figure 5 A schematic diagram of a half-section structure of an arch box of an insulation test device for a single-phase smart electric energy meter proposed by the present invention;

[0026] Figure 6 The present invention provides an insulation test device for a single-phase smart electric energy meter. Figure 5 Schematic diagram of the structure of the middle B area;

[0027] Figure 7 A schematic diagram of a partial cross-sectional structure of a detection base of an insulation test device for a single-phase smart electric energy meter proposed by the present invention;

[0028] Figure 8 The present invention provides an insulation test device for a single-phase smart electric energy meter. Figure 7 Schematic diagram of the structure of the middle C area;

[0029] Fig. 9 The present invention provides a schematic diagram of the cross-sectional structure of a sealing cover of an insulation test device for a single-phase smart electric energy meter.

[0030] In the figure: 1, detection base; 2, resistance detector; 3, positioning groove; 4, adjustment seat; 41, sliding seat; 42, terminal; 43, first spring; 5, arch box; 51, limit slide groove; 52, reciprocating screw rod; 521, driving slider; 53, guide slider; 531, driven slider; 54, first charging groove; 541, second charging groove; 542, moving plate; 543, negative electrode probe; 544, third spring; 55, charging Air box; 6. Power compartment; 61. Drive motor; 7. Cleaning box; 71. Dust suction hole; 72. Air pressure box; 73. Piston groove; 731. Piston plate; 732. Second spring; 74. Magnetic plate; 75. Exhaust groove; 751. Exhaust pipe; 76. Filter groove; 761. Filter plate; 77. Inflating compartment; 771. Inflating pipe; 8. Pressure relief pipe; 9. Sealing cover; 91. Sealing slot; 92. Temperature control copper tube; 93. Temperature regulator. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are 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 therefore cannot be understood as a limitation on the present invention. Example

[0033] Reference Figure 1-Figure 9 , an insulation test device for a single-phase smart electric energy meter, comprising a detection base 1 and a resistance detector 2 fixed on the top thereof, the resistance detector 2 adopts existing mature technology, and the specific model is DBM-5500, a positioning groove 3 is provided on the top of the detection base 1, an adjustment base 4 is fixedly connected to the top of the detection base 1, and a wiring part connected to the positive pole of the electric energy meter is arranged in the adjustment base 4, and also includes: a test component, the test component is arranged on the detection base 1, and the test component is used to measure the insulation resistance value of the electric energy meter; a cleaning component, the cleaning component is arranged on the detection base 1, and the cleaning component is used to clean the metal shell of the electric energy meter to be tested.

[0034] Reference Figure 1 , Figure 2 and Figure 7The wiring part includes a sliding seat 41, which is slidably connected in the adjustment seat 4. A wiring terminal 42 is fixedly connected to one side of the sliding seat 41 close to the positioning groove 3. The wiring terminal 42 is electrically connected to the resistance detector 2. A first spring 43 is fixedly connected between both sides of the sliding seat 41 and the inner wall of the adjustment seat 4.

[0035] Through the arrangement of the above structure, the electric energy meter to be tested is slid along the positioning slot 3 to the side close to the adjustment seat 4, and the sliding seat 41 is moved at the same time, so that the wiring terminal 42 is aligned with the line port of the electric energy meter to be tested, and finally the wiring terminal 42 is inserted into the line port of the electric energy meter. At the same time, under the rebound action of the first springs 43 on both sides, the wiring terminal 42 will exert a resistance effect on the electric energy meter, so that the electric energy meter stays stably in the positioning slot 3, thereby ensuring the stability of the electric energy meter in subsequent detection.

[0036] Reference Figure 2-Figure 8 , wherein the test assembly includes an arch box 5, and a limited sliding groove 51 is provided on both sides of the positioning groove 3 at the top of the detection base 1. A reciprocating screw rod 52 is rotatably connected in the limited sliding groove 51 on one side, and a guide sliding rod 53 is fixedly connected in the limited sliding groove 51 on the other side. A driving slider 521 is threadedly sleeved on the reciprocating screw rod 52, and a driven slider 531 is slidably sleeved on the guide sliding rod 53. The two ends of the arch box 5 are respectively fixedly connected to the top of the driving slider 521 and the driven slider 531; a power warehouse 6 is provided in the detection base 1, and a driving motor 61 is fixedly connected to the side wall of the detection base 1. The reciprocating screw rod 52 penetrates into the power warehouse 6 and is fixedly connected to the output shaft end of the driving motor 61, and a reducer is arranged on the outer wall of the reciprocating screw rod 52; the cleaning assembly includes two groups of cleaning boxes 7, which are respectively fixed on both sides of the arch box 5, and the inner cavities of the cleaning boxes 7 on both sides are connected. The cleaning box 7 is close to the positioning groove 3 Dust suction holes 71 are provided at equal intervals on one side, and a pneumatic part that delivers negative pressure suction to the cleaning box 7 is provided in the power bin 6; the pneumatic part includes a pneumatic box 72, which is fixed in the power bin 6, and piston grooves 73 are provided on both sides of the pneumatic box 72, and a piston plate 731 is slidably connected in the piston groove 73, and a second spring 732 is fixedly connected between the side wall of the piston plate 731 and the inner wall of the piston groove 73, and the reciprocating screw rod 52 passes through the center of the pneumatic box 72. A magnetic plate 74 is fixedly connected to the outer wall of the reciprocating screw rod 52, and the magnetic plate 74 and the piston plate 731 repel each other magnetically. Vacuum grooves 75 are opened on both sides of the inner cavity of the detection base 1. The output ends of the two groups of vacuum grooves 75 are respectively connected to the inner cavities of the two groups of piston grooves 73, and the input ends of the vacuum grooves 75 on both sides are fixed and connected to the vacuum pipe 751. The other end of the vacuum pipe 751 is connected to the inner cavity of the cleaning box 7, and a one-way valve is arranged in the vacuum pipe 751.

[0037] It should be noted that the one-way valve in the exhaust pipe 751 can only allow the airflow around the positioning groove 3 to move along the exhaust pipe 751 into the piston groove 73; in addition, the reducer adopts the existing mature method to reduce the rotation speed of the reciprocating screw 52 in the limiting slide groove 51 without changing the rotation speed of the reciprocating screw 52 in the piston groove 73, so that the arch box 5 and the cleaning box 7 can move slowly, and the magnetic action between the magnetic plate 74 and the piston plate 731 is carried out quickly, thereby generating sufficient suction and thrust to ensure the smooth operation of the equipment.

[0038] Through the arrangement of the above structure, the driving motor 61 is then turned on to drive the reciprocating screw 52 to rotate. At this time, the arch box 5 and the cleaning box 7 will slide back and forth along the reciprocating screw 52, ​​and when the magnetic plate 74 and the piston plate 731 are separated from the repulsive area, the piston plate 731 will be reset and slid under the rebound action of the second spring 732, thereby generating suction in the piston groove 73, and opening the one-way valve in the exhaust pipe 751, so that the airflow outside the electric energy meter enters the cleaning box 7 along the dust suction hole 71, thereby generating suction on the periphery of the metal shell of the electric energy meter, and under the rapid flow of the airflow, the dust attached to the metal shell of the electric energy meter will be taken away, thereby realizing the cleaning of the metal shell of the electric energy meter, ensuring the effectiveness of the contact between the negative pole probe 543 and the metal shell of the electric energy meter, avoiding dust and impurities from hindering the contact of the negative pole probe 543, and improving the accuracy of the detection result.

[0039] Reference Figure 4-Figure 8 , wherein the side walls of the vertical sections on both sides of the arch box 5 are provided with a first gas-filling groove 54, and the top horizontal section of the arch box 5 is provided with a second gas-filling groove 541, and the first gas-filling groove 54 and the second gas-filling groove 541 are both slidably connected with a moving plate 542, and the side of the moving plate 542 close to the positioning groove 3 is fixedly connected with multiple groups of negative electrode probes 543, and the negative electrode probes 543 are electrically connected to the resistance detector 2, and the negative electrode probes 543 are made of conductive and soft metal material; the vertical sections on both sides of the arch box 5 and the top of the horizontal section are fixedly connected with the gas-filling box 55, and the three groups The inner cavity of the inflation box 55 is respectively connected with the first inflation groove 54 on both sides and the second inflation groove 541 on the top, and the third spring 544 is fixedly connected between the inner walls of the three groups of inflation boxes 55 and the side walls of the three groups of movable plates 542. Inflation chambers 77 are opened on both sides of the inner cavity of the detection base 1, and the input ends of the two groups of inflation chambers 77 are respectively connected with the inner cavities of the two groups of piston grooves 73, and the output ends of the inflation chambers 77 on both sides are fixed and connected with an inflation tube 771, the other end of the inflation tube 771 is connected with the inner cavity of the inflation box 55, and a one-way valve is arranged in the inflation tube 771.

[0040] It should be noted that the one-way valve in the inflation tube 771 can only allow the gas in the piston groove 73 to enter the inflation box 55; in addition, since the negative pole probe 543 is made of conductive and soft metal material, the negative pole probe 543 will bend when it continues to approach the metal shell of the electric energy meter after contacting it, thereby ensuring the contact effect and facilitating the smooth coordination of vacuum cleaning and inflation contact.

[0041] By setting the above structure, utilizing the repulsive effect between the magnetic plate 74 and the piston plate 731, the piston plate 731 will move toward the side of the second spring 732, thereby compressing the gas in the piston groove 73, and opening the one-way valve in the inflation tube 771, so that the gas enters the inflation box 55 along the inflation tube 771, and then the gas will enter the first inflation groove 54 and the second inflation groove 541 respectively, so that the air pressure in the first inflation groove 54 and the second inflation groove 541 increases, thereby pushing the movable plate 542 with the negative pole probe 543 to move toward the side close to the metal shell of the electric energy meter, and accompanied by the movement of the arch box 5, the insulation resistance value of each part of the metal shell of the electric energy meter is fully detected, and the accuracy of the detection result is effectively improved.

[0042] Reference Figure 3 , Figure 4 and Figure 7 , wherein filter grooves 76 are provided on both sides of the inner cavity of the detection base 1, and the filter grooves 76 on both sides are connected to the two groups of air extraction grooves 75. The two groups of filter grooves 76 are fixedly connected with filter plates 761, and the output ends of the filter grooves 76 are tilted downward; after the dust is sucked into the cleaning box 7, the airflow will bring the dust into the filter groove 76 along the air extraction groove 75, and finally the airflow will enter the piston groove 73 after being filtered by the filter plate 761, effectively avoiding the dust from entering the subsequent equipment to cause wear and erosion, thereby improving the detection effect of the equipment, and the filtered dust can be discharged outward by opening the filter groove 76, effectively improving the convenience of cleaning.

[0043] Reference Figure 2 , Figure 5 , wherein the side wall of the gas-filled box 55 is fixed and connected to a pressure relief pipe 8, in which a solenoid valve is arranged; after the detection is completed, the solenoid valve in the pressure relief pipe 8 can be opened to release the gas filled into the gas-filled box 55, and under the rebound action of the third spring 544, the movable plate 542 with the negative pole probe 543 will be reset, thereby releasing the contact between the negative pole probe 543 and the metal shell of the electric energy meter, and then the voltage released to the electric energy meter is closed through the resistance detector 2, that is, the regional electric energy meter can be detected and the next electric energy meter to be tested can be detected, which effectively improves the convenience of detection.

[0044] Reference Figure 1 , Fig. 9, which also includes a sealing cover 9, a sealing slot 91 is opened on the detection base 1, the side wall of the sealing cover 9 is inserted into the sealing slot 91, and the inner top of the sealing cover 9 is fixedly connected with a temperature-controlling copper tube 92, and the top of the sealing cover 9 is fixedly connected with a temperature regulator 93, and the working end of the temperature regulator 93 is connected to the temperature-controlling copper tube 92.

[0045] Through the arrangement of the above structure, the sealing cover 9 is covered on the top of the detection base 1 along the sealing slot 91 to form a sealed detection area. At this time, the temperature in the sealed detection area can be adjusted by the temperature regulator 93, so that the insulation resistance value of the electric energy meter can be detected under low temperature, normal temperature and high temperature environments respectively, thereby improving the representativeness of the detection results.

[0046] Reference Figure 1-Figure 9 In the present invention, when in use, the electric energy meter to be tested is slid along the positioning slot 3 to the side close to the adjustment seat 4, and the sliding seat 41 is moved at the same time, so that the terminal 42 is aligned with the line port of the electric energy meter to be tested, and finally the terminal 42 is inserted into the line port of the electric energy meter. At the same time, under the rebound action of the first springs 43 on both sides, the terminal 42 will exert a resistance effect on the electric energy meter, so that the electric energy meter stays stably in the positioning slot 3, thereby ensuring the stability of the electric energy meter in subsequent detection; then the sealing cover 9 is covered on the top of the detection base 1 along the sealing slot 91 to form a sealed detection area. At this time, the temperature in the sealed detection area can be adjusted by the temperature regulator 93, so that the insulation resistance value of the electric energy meter can be detected under low temperature, normal temperature and high temperature environments respectively, thereby improving the representativeness of the detection results, and then the resistance detector 2 is turned on to start releasing voltage to the electric energy meter.

[0047] Then, the driving motor 61 is turned on to drive the reciprocating screw rod 52 to rotate. At this time, the arch box 5 and the cleaning box 7 will slide back and forth along the reciprocating screw rod 52. When the reciprocating screw rod 52 rotates, the repulsive effect between the magnetic plate 74 and the piston plate 731 will first cause the piston plate 731 to move toward the side where the second spring 732 is compressed, thereby compressing the gas in the piston groove 73 and opening the one-way valve in the inflation tube 771, so that the gas enters the inflation box 55 along the inflation tube 771, and then the gas will enter the first inflation groove 54 and the second inflation groove 541 respectively, so that the air pressure in the first inflation groove 54 and the second inflation groove 541 increases, thereby pushing the moving plate 542 to move with the negative electrode probe 543 to the side close to the metal shell of the electric energy meter; subsequently, when the magnetic plate 74 and the piston plate 731 are separated from the repulsive area, the piston plate 731 will be reset and slid under the rebound effect of the second spring 732, thereby generating a suction effect in the piston groove 73 and hitting the The one-way valve in the exhaust pipe 751 is opened, so that the airflow outside the electric energy meter enters the cleaning box 7 along the dust suction hole 71, and so on. In the initial stage of the reciprocating movement of the arch box 5 and the cleaning box 7, suction will be generated on the periphery of the metal shell of the electric energy meter, and the dust attached to the metal shell of the electric energy meter will be taken away under the rapid flow of the airflow, so as to realize the cleaning of the metal shell of the electric energy meter, ensure the effectiveness of the contact between the negative electrode probe 543 and the metal shell of the electric energy meter, avoid dust and impurities from hindering the contact of the negative electrode probe 543, and improve the accuracy of the detection result; at the same time, the gas entering the first filling groove 54 and the second filling groove 541 will eventually push the moving plate 542 to bring the negative electrode probe 543 into contact with the metal shell of the electric energy meter. At this time, the insulation resistance value of the metal shell of the electric energy meter in this area will be displayed on the resistance detector 2, and along with the movement of the arch box 5, the insulation resistance value of each part of the metal shell of the electric energy meter is fully detected, effectively improving the accuracy of the detection result.

[0048] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An insulation test device for a single-phase smart electric energy meter, comprising a detection base (1) and a resistance detector (2) fixed on the top thereof, characterized in that: The detection base (1) has a positioning groove (3) on its top, an adjustment base (4) is fixedly connected to the top of the detection base (1), a wiring portion connected to the positive pole of the electric energy meter is arranged in the adjustment base (4), and further comprises: A test component, the test component being arranged on a detection base (1), and being used to measure the insulation resistance value of the electric energy meter; A cleaning component, the cleaning component being arranged on the detection base (1), and being used for cleaning the metal casing of the electric energy meter to be tested; The test assembly comprises an arched box (5), the top of the detection base (1) is provided with limiting slide grooves (51) on both sides of the positioning groove (3), a reciprocating screw rod (52) is rotatably connected in the limiting slide groove (51) on one side, and a guide slide rod (53) is fixedly connected in the limiting slide groove (51) on the other side, a driving slider (521) is threadedly sleeved on the reciprocating screw rod (52), and a driven slider (531) is slidably sleeved on the guide slide rod (53), and the two ends of the arched box (5) are respectively connected to the top of the driving slider (521) and the driven slider (531). The first gas-filling groove (54) is provided on the vertical sidewalls of both sides of the arch box (5), and the second gas-filling groove (541) is provided on the top horizontal section of the arch box (5). A movable plate (542) is slidably connected in the first gas-filling groove (54) and the second gas-filling groove (541). A plurality of groups of negative electrode probes (543) are fixedly connected on one side of the movable plate (542) close to the positioning groove (3). The negative electrode probes (543) are electrically connected to the resistance detector (2), and the negative electrode probes (543) are made of a conductive and soft metal material; A power compartment (6) is provided in the detection base (1), a driving motor (61) is fixedly connected to the side wall of the detection base (1), the reciprocating screw rod (52) passes through the power compartment (6) and is fixedly connected to the end of the output shaft of the driving motor (61), and a reducer is provided on the outer wall of the reciprocating screw rod (52); The cleaning assembly comprises two groups of cleaning boxes (7), the two groups of cleaning boxes (7) are respectively fixed on two sides of the arch box (5), and the inner cavities of the cleaning boxes (7) on the two sides are connected, and dust suction holes (71) are evenly spaced on one side of the cleaning box (7) close to the positioning groove (3), and an air pressure part for transmitting negative pressure suction to the cleaning box (7) is arranged in the power compartment (6); The pneumatic part comprises a pneumatic box (72), the pneumatic box (72) is fixed in the power chamber (6), piston grooves (73) are provided on both sides of the pneumatic box (72), a piston plate (731) is slidably connected in the piston groove (73), a second spring (732) is fixedly connected between the side wall of the piston plate (731) and the inner wall of the piston groove (73), the reciprocating screw (52) passes through the center of the pneumatic box (72), and a magnetic spring (732) is fixedly connected to the outer wall of the reciprocating screw (52). The magnetic plate (74) and the piston plate (731) repel each other magnetically, air extraction grooves (75) are provided on both sides of the inner cavity of the detection base (1), the output ends of the two groups of air extraction grooves (75) are respectively connected to the inner cavities of the two groups of piston grooves (73), and the input ends of the air extraction grooves (75) on both sides are fixed and connected to air extraction pipes (751), the other end of the air extraction pipe (751) is connected to the inner cavity of the cleaning box (7), and a one-way valve is provided in the air extraction pipe (751).

2. The insulation test equipment of a single-phase smart electric energy meter according to claim 1, characterized in that: The wiring portion comprises a sliding seat (41), the sliding seat (41) being slidably connected in the adjusting seat (4), a wiring terminal (42) being fixedly connected to a side of the sliding seat (41) close to the positioning groove (3), the wiring terminal (42) being electrically connected to the resistance detector (2), and a first spring (43) being fixedly connected between both sides of the sliding seat (41) and the inner wall of the adjusting seat (4).

3. The insulation test equipment of a single-phase smart electric energy meter according to claim 1, characterized in that: Filter grooves (76) are provided on both sides of the inner cavity of the detection base (1), the filter grooves (76) on both sides are connected to two groups of air extraction grooves (75), filter plates (761) are fixedly connected to the two groups of filter grooves (76), and the output ends of the filter grooves (76) are arranged to be inclined downward.

4. The insulation test equipment of a single-phase smart electric energy meter according to claim 1, characterized in that: The vertical sections on both sides of the arch box (5) and the top of the horizontal section are fixedly connected with an inflatable box (55); the inner cavities of the three groups of inflatable boxes (55) are respectively connected to the first inflatable grooves (54) on both sides and the second inflatable groove (541) on the top; the inner walls of the three groups of inflatable boxes (55) and the side walls of the three groups of movable plates (542) are fixedly connected with a third spring (544); inflatable chambers (77) are provided on both sides of the inner cavity of the detection base (1); the input ends of the two groups of inflatable chambers (77) are respectively connected to the inner cavities of the two groups of piston grooves (73); and the output ends of the inflatable chambers (77) on both sides are fixed and connected to an inflatable tube (771); the other end of the inflatable tube (771) is connected to the inner cavity of the inflatable box (55), and a one-way valve is arranged in the inflatable tube (771).

5. The insulation test equipment of a single-phase smart electric energy meter according to claim 4, characterized in that: The side wall of the inflation box (55) is fixed and connected to a pressure relief pipe (8), and a solenoid valve is arranged in the pressure relief pipe (8).

6. The insulation test equipment of a single-phase smart electric energy meter according to claim 1, characterized in that: It also comprises a sealing cover (9), the detection base (1) is provided with a sealing slot (91), the side wall of the sealing cover (9) is inserted into the sealing slot (91), and the inner top of the sealing cover (9) is fixedly connected to a temperature-controlling copper tube (92), the top of the sealing cover (9) is fixedly connected to a temperature regulator (93), and the working end of the temperature regulator (93) is connected to the temperature-controlling copper tube (92).

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