CN115327471A

CN115327471A - Electric energy meter calibration device and use method

Info

Publication number: CN115327471A
Application number: CN202211021616.8A
Authority: CN
Inventors: 熊小华; 何海燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-12
Filing date: 2022-10-12
Publication date: 2022-11-11

Abstract

The invention belongs to the technical field of power equipment, and particularly relates to an electric energy meter calibration device and a use method thereof. The ammeter calibration device comprises an ammeter box; a group of electric energy meters is fixedly connected inside the electric meter box; a rotating shaft is rotatably connected inside the electric meter box below the electric energy meter; the middle part of the rotating shaft is fixedly connected with a winding wheel; the surface of the winding wheel is fixedly connected with and wound with a pull rope; the lower end of the pull rope is fixedly connected with a movable rod; a group of connecting seats is fixedly connected inside the electric meter box below the movable rod; a group of conducting rings is fixedly connected inside the connecting seat; the conducting rod is connected in the conducting ring in a vertical sliding manner; the testing port through making the electric energy meter descend the below of ammeter case, only need during the check-up with inside the terminal inserts the testing port that the electric energy meter corresponds to check-up through the check-up instrument can, the staff of being convenient for carries out the check-up operation to the electric energy meter, satisfies the staff of different heights, has avoidd the installation form of activity wire, has solved the problem that the wire is in disorder, fatigue damage fracture.

Description

Electric energy meter calibration device and use method

Technical Field

The invention belongs to the technical field of power equipment, and particularly relates to an electric energy meter calibration device and a use method thereof.

Background

In order to eliminate the metering deviation of the electric energy meter, a terminal of a verification instrument is usually required to be inserted into a test port of the electric energy meter so as to verify the electric energy meter. But the mounting height of different electric energy meters is different, and different staff's height is different, and the operation posture that is used to is also different, and this needs the staff constantly to adjust self position, still need borrow the cat ladder even when facing the electric energy meter of eminence, has increased the operation risk to a certain extent.

A chinese patent with publication number CN102736053B discloses a lifting device for an electric energy meter calibration device, which comprises a fixed frame (1), a movable plate (2) is arranged in the fixed frame (1), an electric energy meter (21) is arranged on the movable plate (2), a driving mechanism (3) for controlling the movable plate (2) to lift up and down is arranged between the fixed frame (1) and the movable plate (2), when a worker needs to assemble and disassemble a row of electric energy meters, a hand wheel is rotated to drive a dragging wheel to rotate, a steel wire rope embedded in the dragging wheel drives the movable plate to move up and down through friction force so that the electric energy meter position moves to the most proper height considered by the worker, a positioning bolt is inserted into a through hole of a positioning bar to fix the movable plate, and the worker can assemble and disassemble the electric energy meter safely and conveniently, and the invention has the advantages that: the electric energy meter calibration device accords with the principle of ergonomics, the electric energy meter is convenient and labor-saving to assemble and disassemble by workers, the working efficiency is high, and compared with a full-automatic lifting device, the electric energy meter calibration device is simple in structure and low in manufacturing cost. Above-mentioned electric energy meter calibration equipment among the prior art, adopt the fly leaf structure of over-and-under type to install the electric energy meter on the fly leaf, through making the fly leaf descend when the calibration, thereby make the electric energy meter descend to the staff and regard the most suitable height, but this set of device structure is complicated, and the electric energy meter adopts movable mounting's mode, so the wire of electric energy meter access circuit must also need frequent activity, long-term use arouses the wire easily in disorder, the problem of fatigue damage fracture even, the life of reduction device.

Disclosure of Invention

To remedy the deficiencies of the prior art, at least one of the technical problems set forth in the background is addressed.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an electric energy meter calibration device, which comprises an electric meter box; a group of electric energy meters is fixedly connected inside the electric meter box; a rotating shaft is rotatably connected inside the electric meter box below the electric energy meter; the rotating shaft is driven by a motor, and the motor is controlled in a remote control mode; a winding wheel is fixedly connected to the middle part of the rotating shaft; the surface of the winding wheel is fixedly connected with and wound by a pull rope; the lower end of the pull rope is fixedly connected with a movable rod; a group of connecting seats are fixedly connected inside the electric meter box below the movable rod, and the number of the connecting seats is the same as that of the electric energy meters and the connecting seats correspond to the electric energy meters one by one; a group of conducting rings are fixedly connected inside the connecting seat, and the conducting rings are electrically connected with the corresponding electric energy meters through conducting wires respectively; the conducting ring is internally connected with a conducting rod in a vertical sliding manner, and the upper end of the conducting rod is fixedly connected with the movable rod; the lower end of the conducting rod is fixedly connected with a test port; a group of slots are formed in the bottom of the electric meter box close to the test port; the electric energy meter calibration device in the prior art adopts a lifting movable plate structure, the electric energy meter is arranged on the movable plate, and the movable plate is lowered during calibration, so that the electric energy meter is lowered to the height which is considered to be the most suitable by workers; when the electric energy meters need to be checked, the motor can be controlled to rotate forwards slowly in a remote control mode, the rotating shaft and the rolling wheel are driven to rotate, the pull rope is rolled up by the rolling wheel, the movable rod and the conductive rod slowly descend under the action of gravity, and the conductive rod drives the test ports to extend downwards through the grooves, so that the test ports of all the electric energy meters all descend below the electric energy meter box.

Preferably, a sliding groove is formed in one end, extending to the inner wall of the top of the test port, of the conducting rod; the inside of the sliding groove is connected with a conductive core in a sliding manner; an elastic part is fixedly connected between the top end of the sliding chute and the conductive core; the lower end of the conductive core extends into the test port and is fixedly connected with a conductive plate; a corrugated sealing pipe is fixedly connected between the upper side of the current conducting plate and the top of the test port; a pair of elastic membranes is fixedly connected to the surface of the inner side wall of the test port; a closed cavity formed between the elastic membrane and the inner side wall of the test port is communicated with the corrugated sealing pipe through a guide pipe; when the terminal inserts test port inside, the terminal passes through the current conducting plate and leads electrical core and conducting rod electric connection to the terminal can upwards extrude the current conducting plate and compress ripple sealed tube, and then ripple sealed tube inside compressed air fills elastic film through the pipe inside, makes a pair of elastic film inflation swell, and presss from both sides the fastening with the terminal and decides, improves the steadiness of being connected between terminal and the test port, avoids check-up in-process terminal to take place the problem that drops.

Preferably, a sucker is fixedly connected to the middle of one side of the elastic membrane, which is far away from the inner side wall of the test port; through setting up the sucking disc, can promote a pair of sucking disc extrusion terminal during the elastic membrane inflation is bloated, the inside air of discharge sucking disc in the extrusion process and at the inside negative pressure that produces of sucking disc for the sucking disc can adsorb on the terminal surface, further improves the fixed degree to the terminal.

Preferably, a pair of magnets is fixedly embedded on the surface of the side wall of the slot; a magnetic block is arranged in the middle of one side of the elastic membrane, which is far away from the sucker; the magnetic block can be attracted by the magnet when being close to the magnet; after the check-up work, the control motor slowly reverses, and drive pivot and take-up pulley and rotate, the take-up pulley is with the stay cord roll-up, stay cord pulling movable rod rises, make conducting rod and test port income ammeter incasement portion, this in-process test port is through when slotting is inside, magnet can produce the appeal to the magnetic block, and then magnetic block pulling elastic membrane removes towards test port inside wall, make the elastic membrane shrink, the inside air of elastic membrane is crowded into ripple sealed tube inside again, and then the sucking disc stops to the terminal extrusion, and the current conducting plate promotes the terminal downwards, make the terminal can break away from the test port automatically when slotting, need not that the staff is manual to extract the terminal, further improve the degree of automation of this device.

Preferably, an elastic pad is fixedly connected to the middle of one side of the elastic membrane, which is far away from the sucker, and a closed cavity is formed between the elastic pad and the elastic membrane; the magnetic block is fixedly connected to one side of the elastic cushion, which is far away from the sucker; the middle part of the closed end of the sucker is provided with a sliding hole, and the sliding hole penetrates through the elastic membrane; the inside of the sliding hole is connected with a guide rod in a sliding manner, and the guide rod is fixedly connected with the elastic pad; a Y-shaped guide hole is formed in the guide rod; a balance hole is formed in the position, close to the inner side of the elastic cushion, of the elastic film; when the test port is through slotting inside, magnet produces the appeal to the magnetic block, and then the magnetic block stimulates the elastic membrane shrink on one side, further bending deformation of pulling cushion on one side, make the guide arm slide in the slide opening is inside, and then the both ends of guide hole are with the inside and sucking disc intercommunication of cushion, outside air can pass through the balancing hole this moment, inside the cushion, the guide hole gets into inside the sucking disc, the inside negative pressure of balancing sucking disc, make sucking disc and terminal break away from, avoid sucking disc suction too big, lead to the problem that the terminal can't break away from the test port smoothly.

Preferably, a flexible water storage bag is fixedly connected to the outer side of the sucker, and cooling liquid is added into the flexible water storage bag; the flexible water storage bag is in a horn-shaped annular structure, and the flexible water storage bag is mutually attached to the outer side of the sucker; when the terminal circular telegram, the heat of its production can conduct to sucking disc department, leads to the sucking disc temperature to rise, and easy bleed sucking disc warp the problem of damage, and through setting up flexible water storage bag in the sucking disc outside this moment, the inside coolant liquid of flexible water storage bag can absorb the heat of sucking disc, reduces the temperature of sucking disc, avoids the sucking disc high temperature and takes place to warp the problem of damage.

Preferably, one end of the guide rod extending to the inside of the sucker is fixedly connected with an elastic metal sheet; the elastic metal sheet is arranged into an arc-shaped structure, and one end of the elastic metal sheet, which is far away from the guide rod, is mutually attached to the inner side of the sucker; a group of bumps are uniformly distributed on the inner side surface of the sucker close to the closed end; when the test port descends and passes through the inside of the groove, the magnet attracts the magnetic block to drive the guide rod to slide in the sliding hole, and then the end, close to the sucker, of the guide rod retracts into the sliding hole, so that the end part of the elastic metal sheet scrapes the bump on the surface of the inner side wall of the sucker, the sucker is promoted to vibrate in a small amplitude mode, the dust possibly existing inside the sucker can be shaken off, and the problem that the follow-up sucker is difficult to adsorb on the surface of a binding post due to the dust is avoided.

A use method of an electric energy meter calibration device is suitable for the electric energy meter calibration device and comprises the following steps:

s1: when each electric energy meter in the electric meter box needs to be checked, the motor is controlled to rotate forwards slowly in a remote control mode, the rotating shaft and the winding wheel are driven to rotate, and the pulling rope is wound and unwound by the winding wheel, so that the movable rod descends slowly under the action of gravity;

s2: when the movable rod descends, the plurality of conducting rods synchronously descend and are in sliding contact with the conducting rings, and then the conducting rods drive the test ports to extend downwards through the slots, so that the test ports of all the electric energy meters descend below the electric meter box, the binding posts are sequentially inserted into the test ports corresponding to all the electric energy meters, and the electric energy meters are subjected to checking work one by one through the checking instrument;

s3: after the check-up work is finished, the terminal inside the test port is pulled out, the motor is controlled to slowly rotate reversely, the rotating shaft and the winding wheel are driven to rotate, the winding wheel winds the pull rope, the pull rope pulls the movable rod to ascend, and the conductive rod and the test port are taken into the electric meter box.

The invention has the following beneficial effects:

1. according to the electric energy meter calibration device and the use method, the test port of each electric energy meter is lowered to the lower part of the electric meter box, when a certain electric energy meter needs to be calibrated, only the binding post of the calibration instrument is inserted into the corresponding group of test ports of the electric energy meter, and the electric energy meter is calibrated through the calibration instrument, so that the test current passing through the conducting ring, the conducting rod, the test port and the binding post can be transmitted between the electric energy meter and the calibration instrument.

2. According to the electric energy meter calibration device and the use method, when the wiring terminal is inserted into the testing port, the wiring terminal is electrically connected with the conducting rod through the conducting plate and the conducting core, the wiring terminal can upwards extrude the conducting plate and compress the corrugated sealing tube, and then compressed air in the corrugated sealing tube is filled into the elastic films through the guide tubes, so that the pair of elastic films are expanded and expanded, the wiring terminal is clamped and fixed, the connection stability between the wiring terminal and the testing port is improved, and the problem that the wiring terminal falls off in the calibration process is avoided.

Drawings

The invention will be further described with reference to the accompanying drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 3 at B;

FIG. 5 is an enlarged view of a portion of FIG. 4 at C;

FIG. 6 is a perspective view of the elastic pad of the present invention;

FIG. 7 is a cross-sectional view of the suction cup of the present invention;

FIG. 8 is a schematic flow diagram of the method of the present invention;

in the figure: the electric meter comprises an electric meter box 1, an electric energy meter 2, a rotating shaft 3, a motor 4, a winding wheel 5, a pull rope 6, a movable rod 7, a connecting seat 8, a conducting ring 9, a conducting rod 10, a testing port 11, a slot 12, a sliding groove 13, a conducting core 14, an elastic part 15, a conducting plate 16, a corrugated sealing pipe 17, an elastic membrane 18, a guide pipe 19, a sucking disc 20, a magnet 21, a magnetic block 22, an elastic pad 23, a guide rod 24, a guide hole 25, a balance hole 26, a flexible water storage bag 27, an elastic metal sheet 28 and a bump 29.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Example one

As shown in fig. 1 to 6, an electric energy meter calibration apparatus according to an embodiment of the present invention includes an electric meter box 1; a group of electric energy meters 2 are fixedly connected inside the electric meter box 1; a rotating shaft 3 is rotatably connected inside the electric meter box 1 below the electric energy meter 2; the rotating shaft 3 is driven by a motor 4, and the motor 4 is controlled in a remote control mode; a winding wheel 5 is fixedly connected to the middle part of the rotating shaft 3; the surface of the winding wheel 5 is fixedly connected with and wound by a pull rope 6; the lower end of the pull rope 6 is fixedly connected with a movable rod 7; a group of connecting seats 8 are fixedly connected inside the electric meter box 1 below the movable rod 7, and the number of the connecting seats 8 is the same as that of the electric energy meters 2 and corresponds to that of the electric energy meters one by one; a group of conducting rings 9 is fixedly connected inside the connecting seat 8, and the conducting rings 9 are respectively electrically connected with the corresponding electric energy meters 2 through conducting wires; a conducting rod 10 is connected to the inside of the conducting ring 9 in a vertical sliding manner, and the upper end of the conducting rod 10 is fixedly connected with the movable rod 7; the lower end of the conducting rod 10 is fixedly connected with a test port 11; a group of slots 12 are formed in the bottom of the electric meter box 1 close to the test port 11; the electric energy meter calibration device in the prior art adopts a lifting movable plate structure, the electric energy meter 2 is arranged on the movable plate, and the movable plate is lowered during calibration, so that the electric energy meter 2 is lowered to the height which is considered to be the most suitable by a worker; at the moment, when the electric energy meters 2 need to be checked, the motor 4 can be controlled to rotate forwards slowly in a remote control mode, the rotating shaft 3 and the winding wheel 5 are driven to rotate, the pull rope 6 is wound and unwound by the winding wheel 5, the movable rod 7 and the conductive rod 10 slowly descend under the action of gravity, the conductive rod 10 drives the test ports 11 to extend downwards through the grooves 12, the test ports 11 of each electric energy meter 2 all descend below the electric meter box 1, when a certain electric energy meter 2 needs to be checked, only the wiring terminals of a checking instrument are inserted into the group of test ports 11 corresponding to the electric energy meter 2, the electric energy meters 2 are checked by the checking instrument, test currents passing through the conductive rings 9, the conductive rods 10, the test ports 11 and the wiring terminals can be transmitted between the electric energy meters 2 and the checking instrument, the device can enable the test ports 11 of each electric energy meter 2 to descend to the proper height, accordingly, workers with different heights can check the electric energy meters 2, the installation form of the movable wires is enabled, the problems of wrong installation of the wires and even the fatigue and the breakage of the device are fundamentally avoided, and the service life of the device is prolonged.

A sliding groove 13 is formed in one end, extending to the inner wall of the top of the test port 11, of the conducting rod 10; a conductive core 14 is connected inside the sliding groove 13 in a sliding manner; an elastic part 15 is fixedly connected between the top end of the sliding chute 13 and the conductive core 14; the lower end of the conductive core 14 extends into the test port 11 and is fixedly connected with a conductive plate 16; a corrugated sealing pipe 17 is fixedly connected between the upper side of the conductive plate 16 and the top of the test port 11; a pair of elastic membranes 18 are fixedly connected to the surface of the inner side wall of the test port 11; the closed cavity formed between the elastic membrane 18 and the inner side wall of the test port 11 is communicated with the corrugated sealing pipe 17 through a guide pipe 19; when the terminal inserted inside test port 11, the terminal passed through current conducting plate 16 and electrically conductive core 14 and conducting rod 10 electric connection to the terminal can upwards extrude current conducting plate 16 and compress ripple sealed tube 17, and then ripple sealed tube 17 inside compressed air fills elastic membrane 18 inside through pipe 19, makes a pair of elastic membrane 18 inflation swell, and with terminal clamp fastening fixed, improves the connection steadiness between terminal and the test port 11, avoids check-up in-process terminal to take place the problem that drops.

A sucker 20 is fixedly connected to the middle of one side of the elastic membrane 18, which is far away from the inner side wall of the test port 11; through setting up sucking disc 20, can promote a pair of sucking disc 20 extrusion terminal when the elasticity membrane 18 inflation is bloated, the inside air of discharge sucking disc 20 in the extrusion process and at the inside negative pressure that produces of sucking disc 20 for sucking disc 20 can adsorb on the terminal surface, further improves the fixed degree to the terminal.

A pair of magnets 21 are fixedly embedded on the surface of the side wall of the open slot 12; the middle part of one side of the elastic membrane 18, which is far away from the sucker 20, is provided with a magnetic block 22; the magnetic block 22 can be attracted by the magnet 21 when approaching the magnet 21; after the check-up work, control motor 4 slowly reverses, and drive pivot 3 and take-up pulley 5 and rotate, take-up pulley 5 rolls up stay cord 6, stay cord 6 pulling movable rod 7 rises, make conducting rod 10 and test port 11 income ammeter case 1 inside, this in-process test port 11 is through fluting 12 when inside, magnet 21 can produce the appeal to magnetic block 22, and then make magnetic block 22 pulling elastic membrane 18 remove towards test port 11 inside wall, make elastic membrane 18 shrink, the inside air of elastic membrane 18 is crowded into ripple sealed tube 17 inside again, and then sucking disc 20 stops to push the terminal, and current conducting plate 16 promotes the terminal downwards, make the terminal can break away from test port 11 automatically when fluting 12, need not that the staff is manual to extract the terminal, further improve the degree of automation of this device.

The middle part of one side of the elastic membrane 18, which is far away from the sucker 20, is fixedly connected with an elastic pad 23, and a closed cavity is formed between the elastic pad 23 and the elastic membrane 18; the magnetic block 22 is fixedly connected to one side of the elastic cushion 23 far away from the sucker 20; a sliding hole is formed in the middle of the closed end of the sucker 20 and penetrates through the elastic membrane 18; a guide rod 24 is connected inside the sliding hole in a sliding manner, and the guide rod 24 is fixedly connected with the elastic pad 23; a Y-shaped guide hole 25 is formed in the guide rod 24; a balance hole 26 is formed in the position, close to the inner side of the elastic cushion 23, of the elastic film 18; when the test port 11 passes through the inside of the slot 12, the magnet 21 generates attraction force on the magnetic block 22, and then the magnetic block 22 pulls the elastic membrane 18 to contract while pulling the elastic pad 23 to further bend and deform, so that the guide rod 24 slides inside the sliding hole, and then the two ends of the guide hole 25 communicate the inside of the elastic pad 23 with the sucker 20, at this moment, the outside air can pass through the balance hole 26, the inside of the elastic pad 23, and the guide hole 25 enters the inside of the sucker 20, balance the negative pressure inside the sucker 20, so that the sucker 20 is separated from the terminal, and the problem that the terminal cannot be smoothly separated from the test port 11 due to overlarge attraction force of the sucker 20 is avoided.

Example two

As shown in fig. 7, a first comparative example, in which another embodiment of the present invention is: a flexible water storage bag 27 is fixedly connected to the outer side of the sucker 20, and cooling liquid is added into the flexible water storage bag 27; the flexible water storage bag 27 is in a horn-shaped annular structure, and the flexible water storage bag 27 is mutually attached to the outer side of the sucker 20; when the terminal circular telegram, the heat that its produced can conduct sucking disc 20 departments, leads to sucking disc 20 temperature to rise, and the problem of easy bleed sucking disc 20 deformation damage through set up flexible water storage bag 27 in the sucking disc 20 outside this moment, and the inside coolant liquid of flexible water storage bag 27 can absorb sucking disc 20's heat, reduces sucking disc 20's temperature, avoids sucking disc 20 high temperature and takes place the problem of deformation damage.

One end of the guide rod 24 extending to the inside of the suction cup 20 is fixedly connected with an elastic metal sheet 28; the elastic metal sheet 28 is of an arc structure, and one end of the elastic metal sheet 28, which is far away from the guide rod 24, is mutually attached to the inner side of the suction cup 20; a group of bumps 29 are uniformly distributed on the inner side surface of the sucker 20 close to the closed end; when the test port 11 passes through the inside of the slot 12 in the descending process, the magnet 21 generates attraction force on the magnetic block 22 to drive the guide rod 24 to slide inside the slide hole, and then one end of the guide rod 24 close to the suction cup 20 retracts inside the slide hole, so that the end part of the elastic metal sheet 28 scrapes the bump 29 on the surface of the inner side wall of the suction cup 20, the suction cup 20 is promoted to vibrate in a small amplitude, and therefore possible dust inside the suction cup 20 can be shaken off, and the problem that the subsequent suction cup 20 is difficult to adsorb on the surface of the binding post due to the dust is avoided.

As shown in fig. 8, a method for using a calibration apparatus for an electric energy meter, the method being suitable for the calibration apparatus for an electric energy meter, includes the following steps:

s1: when the electric energy meters 2 in the electric meter box 1 need to be checked, the motor 4 is controlled to rotate forwards slowly in a remote control mode, the rotating shaft 3 and the winding wheel 5 are driven to rotate, and the pull rope 6 is wound and unwound by the winding wheel 5, so that the movable rod 7 descends slowly under the action of gravity;

s2: when the movable rod 7 descends, the plurality of conducting rods 10 synchronously descend and are in sliding contact with the conducting rings 9, and then the conducting rods 10 drive the test ports 11 to extend downwards through the slots 12, so that the test port 11 of each electric energy meter 2 descends to the lower part of the electric meter box 1, the binding posts are sequentially inserted into the test ports 11 corresponding to each electric energy meter 2, and the electric energy meters 2 are verified one by one through a verification instrument;

s3: after the check-up work, extracting the terminal inside the test port 11, slowly reversing the control motor 4, driving the rotating shaft 3 and the winding wheel 5 to rotate, winding the pull rope 6 by the winding wheel 5, and lifting the pull rope 6 to pull the movable rod 7, so that the conductive rod 10 and the test port 11 are taken into the electric meter box 1.

The working principle is as follows: when the electric energy meters 2 need to be checked, the motor 4 can be controlled to rotate forwards slowly in a remote control mode, the rotating shaft 3 and the winding wheel 5 are driven to rotate, the pull rope 6 is wound and unwound by the winding wheel 5, the movable rod 7 and the conductive rod 10 slowly descend under the action of gravity, and the conductive rod 10 drives the test ports 11 to extend downwards through the slots 12, so that the test ports 11 of each electric energy meter 2 all descend below the electric meter box 1, when a certain electric energy meter 2 needs to be checked, only a binding post of a checking instrument needs to be inserted into one group of test ports 11 corresponding to the electric energy meter 2, and the electric energy meters 2 can be checked through the checking instrument, test currents passing through the conductive ring 9, the conductive rod 10, the test ports 11 and the binding post can be transmitted between the electric energy meters 2 and the checking instrument, the device can enable the test ports 11 of each electric energy meter 2 to descend to a proper height, so that workers with different heights can check the electric energy meters 2 conveniently, and the installation form of the movable wires is fundamentally solved, the problems of disordered wires, even the fatigue of the device is damaged and the device is prolonged in service life; when the wiring terminal is inserted into the testing port 11, the wiring terminal is electrically connected with the conductive rod 10 through the conductive plate 16 and the conductive core 14, the wiring terminal can upwards extrude the conductive plate 16 and compress the corrugated sealing tube 17, and then compressed air in the corrugated sealing tube 17 is filled into the elastic films 18 through the guide tube 19, so that the elastic films 18 are expanded and expanded, the wiring terminal is clamped and fixed, the connection stability between the wiring terminal and the testing port 11 is improved, and the problem that the wiring terminal falls off in the checking process is avoided; through the arrangement of the suckers 20, when the elastic film 18 expands and bulges, the pair of suckers 20 can be pushed to extrude the binding post, air in the suckers 20 is discharged in the extruding process, negative pressure is generated in the suckers 20, so that the suckers 20 can be adsorbed on the surface of the binding post, and the fixing degree of the binding post is further improved; after the checking work is finished, the motor 4 is controlled to slowly rotate reversely, the rotating shaft 3 and the rolling wheel 5 are driven to rotate, the rolling wheel 5 rolls the pull rope 6, the pull rope 6 pulls the movable rod 7 to ascend, so that the conductive rod 10 and the test port 11 are collected into the electric meter box 1, in the process, when the test port 11 passes through the groove 12, the magnet 21 can generate attraction force on the magnetic block 22, the magnetic block 22 pulls the elastic membrane 18 to move towards the inner side wall of the test port 11, the elastic membrane 18 contracts, air in the elastic membrane 18 is squeezed into the corrugated sealing tube 17 again, the sucker 20 stops squeezing the wiring column, the conductive plate 16 pushes the wiring column downwards, the wiring column can be automatically separated from the test port 11 when passing through the groove 12, the wiring column does not need to be pulled out manually by a worker, and the automation degree of the device is further improved; when the test port 11 passes through the inside of the slot 12, the magnet 21 generates attraction force on the magnetic block 22, and the magnetic block 22 pulls the elastic membrane 18 to contract while pulling the elastic pad 23 to further bend and deform, so that the guide rod 24 slides inside the sliding hole, and then the two ends of the guide hole 25 communicate the inside of the elastic pad 23 with the sucker 20, at this time, external air can enter the inside of the sucker 20 through the balance hole 26, the inside of the elastic pad 23 and the guide hole 25, and balance the negative pressure inside the sucker 20, so that the sucker 20 is separated from the binding post, and the problem that the binding post cannot be smoothly separated from the test port 11 due to overlarge attraction force of the sucker 20 is avoided; when the wiring terminal is electrified, the heat generated by the wiring terminal can be conducted to the sucker 20, so that the temperature of the sucker 20 is increased, and the air-entraining sucker 20 is easy to deform and damage; when the test port 11 passes through the inside of the slot 12 in the descending process, the magnet 21 generates attraction force on the magnetic block 22 to drive the guide rod 24 to slide inside the slide hole, and then one end of the guide rod 24 close to the suction cup 20 retracts inside the slide hole, so that the end part of the elastic metal sheet 28 scrapes the bump 29 on the surface of the inner side wall of the suction cup 20, the suction cup 20 is promoted to vibrate in a small amplitude, and therefore possible dust inside the suction cup 20 can be shaken off, and the problem that the subsequent suction cup 20 is difficult to adsorb on the surface of the binding post due to the dust is avoided.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an electric energy meter calibration equipment which characterized in that: comprises an electric meter box (1); a group of electric energy meters (2) are fixedly connected inside the electric meter box (1); a rotating shaft (3) is rotatably connected inside the ammeter box (1) below the electric energy meter (2); the rotating shaft (3) is driven by a motor (4), and the motor (4) is controlled in a remote control mode; a winding wheel (5) is fixedly connected with the middle part of the rotating shaft (3); the surface of the rolling wheel (5) is fixedly connected with and wound with a pull rope (6); the lower end of the pull rope (6) is fixedly connected with a movable rod (7); a group of connecting seats (8) are fixedly connected inside the electric meter box (1) below the movable rod (7), and the number of the connecting seats (8) is the same as that of the electric energy meters (2) and the connecting seats correspond to the electric energy meters one by one; a group of conducting rings (9) are fixedly connected inside the connecting seat (8), and the conducting rings (9) are electrically connected with the corresponding electric energy meters (2) through conducting wires respectively; a conductive rod (10) is connected to the interior of the conductive ring (9) in a vertical sliding manner, and the upper end of the conductive rod (10) is fixedly connected with the movable rod (7); the lower end of the conducting rod (10) is fixedly connected with a test port (11); a group of slots (12) are formed in the bottom of the electric meter box (1) close to the test port (11).

2. The electric energy meter calibration device according to claim 1, characterized in that: one end of the conducting rod (10) extending to the inner wall of the top of the testing port (11) is provided with a sliding groove (13); a conductive core (14) is connected inside the sliding groove (13) in a sliding way; an elastic piece (15) is fixedly connected between the top end of the sliding chute (13) and the conductive core (14); the lower end of the conductive core (14) extends into the testing port (11) and is fixedly connected with a conductive plate (16); a corrugated sealing pipe (17) is fixedly connected between the upper side of the conductive plate (16) and the top of the test port (11); a pair of elastic membranes (18) are fixedly connected to the surface of the inner side wall of the test port (11); the closed cavity formed between the elastic membrane (18) and the inner side wall of the test port (11) is communicated with the corrugated sealing pipe (17) through a guide pipe (19).

3. The electric energy meter calibration device according to claim 2, characterized in that: the middle part of one side of the elastic membrane (18) far away from the inner side wall of the test port (11) is fixedly connected with a sucker (20).

4. The electric energy meter calibration device according to claim 3, characterized in that: a pair of magnets (21) are fixedly embedded on the surface of the side wall of the slot (12); a magnetic block (22) is arranged in the middle of one side of the elastic membrane (18) far away from the sucker (20); the magnetic block (22) can be attracted by the magnet (21) when approaching the magnet (21).

5. The electric energy meter calibration device according to claim 4, wherein: an elastic cushion (23) is fixedly connected to the middle of one side, away from the sucker (20), of the elastic film (18), and a closed cavity is formed between the elastic cushion (23) and the elastic film (18); the magnetic block (22) is fixedly connected to one side of the elastic cushion (23) far away from the sucker (20); the middle part of the closed end of the sucker (20) is provided with a sliding hole, and the sliding hole penetrates through the elastic membrane (18); a guide rod (24) is connected inside the sliding hole in a sliding manner, and the guide rod (24) is fixedly connected with the elastic pad (23); a Y-shaped guide hole (25) is formed in the guide rod (24); the elastic membrane (18) is provided with a balance hole (26) at the position close to the inner side of the elastic pad (23).

6. The electric energy meter calibration device according to claim 5, wherein: a flexible water storage bag (27) is fixedly connected to the outer side of the sucker (20), and cooling liquid is added into the flexible water storage bag (27); the flexible water storage bag (27) is in a horn-shaped annular structure, and the flexible water storage bag (27) is mutually attached to the outer side of the sucker (20).

7. The electric energy meter calibration device according to claim 6, wherein: one end of the guide rod (24) extending to the inside of the sucker (20) is fixedly connected with an elastic metal sheet (28); the elastic metal sheet (28) is arranged into an arc-shaped structure, and one end of the elastic metal sheet (28) far away from the guide rod (24) is mutually attached to the inner side of the sucker (20); a group of convex blocks (29) are uniformly distributed on the inner side surface of the sucking disc (20) close to the closed end.

8. A method for using a verification device for an electric energy meter, the method being applied to the verification device for an electric energy meter according to any one of claims 1 to 7, wherein: the method comprises the following steps:

s1: when each electric energy meter (2) in the electric meter box (1) needs to be checked, the motor (4) is controlled to rotate forwards slowly in a remote control mode, the rotating shaft (3) and the winding wheel (5) are driven to rotate, the pull rope (6) is wound and unwound by the winding wheel (5), and the movable rod (7) slowly descends under the action of gravity;

s2: when the movable rod (7) descends, the conductive rods (10) synchronously descend and are in sliding contact with the conductive rings (9), and then the conductive rods (10) drive the test ports (11) to extend downwards through the slots (12), so that the test ports (11) of the electric energy meters (2) descend below the electric meter box (1), the wiring terminals are sequentially inserted into the test ports (11) corresponding to the electric energy meters (2), and the electric energy meters (2) are verified one by one through the verifying instrument;

s3: after the checking work is finished, the terminal inside the testing port (11) is extracted, the motor (4) is controlled to slowly rotate reversely, the rotating shaft (3) and the winding wheel (5) are driven to rotate, the pulling rope (6) is wound by the winding wheel (5), the pulling rope (6) pulls the movable rod (7) to ascend, and the conductive rod (10) and the testing port (11) are led into the electric meter box (1).