An intelligent electric meter checking instrument

Abstract

The application belongs to the field of electric meter calibration, and particularly relates to an intelligent electric meter calibration instrument, which comprises a base, a cabinet body fixedly connected to the top of the base, a controller fixedly installed on one side of the cabinet body, a cabinet door installed on the other side of the cabinet body, a plurality of support seats fixedly connected to the inner wall of the cabinet door and arranged in a circumferential array, a plurality of probes fixedly connected to the top of the support seats, an electric meter body provided on the top of the support seats, a plurality of terminal posts fixedly arranged on the electric meter body, the terminal posts being slidably sleeved on the probes, and a plurality of terminal openings formed in the bottom of the electric meter body. The horizontal assembly is arranged, so that the code scanner can always keep a horizontal posture during rotation, and the identification codes on the outer walls of the electric meter bodies arranged in a plurality of circumferences can be sequentially identified, so that the time required for calibration of the device each time can be adapted to the operation time of the operator, and the continuity of the operator during work can be maintained.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of electric meter calibration, in particular to a kind of intelligent electric meter calibration instrument. BACKGROUND

[0002] Intelligent electric meter is a kind of electric energy metering equipment based on modern communication and metering technology, with high precision, remote communication and real-time data acquisition functions.Compared with traditional electric meter, intelligent electric meter supports two-way data interaction, can monitor power consumption in real time, remote meter reading and dynamic price management, and can detect abnormal power consumption behavior, providing key data support for smart grid and energy management.Its core modules include metering chip, communication module and embedded processing system, and is widely used in household, industrial and commercial power consumption scenarios.

[0003] In the production process, intelligent electric meter needs to be inserted into its terminal post by probe for electrical performance calibration;This link mainly detects whether the metering accuracy, signal response and communication function of electric meter meet the standards.Probe is connected with automated test equipment, simulates real power consumption environment to apply test signal, and collects electric meter output data for analysis.

[0004] In the prior art, there are mature technologies for intelligent electric meter calibration, such as a Chinese patent with publication number CN117849698B discloses an intelligent electric meter calibration device and method, which sets a scanning assembly, cooperates with the controller to start the servo asynchronous motor, so that the large shaft rotates, cooperates with the long rod, cylinder, short column, short rod, driving column and driven column, so that the horizontal bar always rotates in a horizontal state, so that the scanner always rotates in a horizontal state, and the horizontal bar is aligned with the bar code outside the electric meter shell, and the bar code outside the two electric meter shells is scanned in turn, so that the electric meter body is better calibrated.

[0005] But the above technology has the following defects: when calibrating intelligent electric meter, it is generally batched for batch calibration, in the above technical solution, each calibration process can only scan and calibrate one pair of electric meter, which will make the operator forced to idle and wait for the equipment to be ready until the next calibration operation, and since the equipment only needs to detect two electric meters, the required time is short, which will make the operator frequently switch between "hasty placement" and "long waiting", reducing the continuity of the operator's operation during calibration.

[0006] Therefore, an intelligent electric meter calibration instrument is proposed to solve the above problems. SUMMARY

[0007] In order to make up for the shortcomings of the prior art and solve at least one technical problem in the background art.

[0008] The technical scheme adopted by the present application to solve its technical problems is: the intelligent electric meter calibration instrument comprises a base, a cabinet body is fixedly connected to the top of the base, a controller is fixedly installed on one side of the cabinet body, a cabinet door is installed on the other side of the cabinet body, a plurality of support seats are fixedly connected to the inner wall of the cabinet door and arranged in a circumferential array, a plurality of probes are fixedly connected to the top of the support seat, and an electric meter body is arranged on the top of the support seat, the electric meter body comprises a plurality of terminal posts fixedly arranged, the terminal posts are slidably sleeved on the probes, the electric meter body further comprises a plurality of terminal openings formed in the bottom, clamping plates are symmetrically arranged on the two sides of the electric meter body, and the clamping plates are used for fixing and clamping the electric meter body, the probes are signal-connected with the controller, a first motor is fixedly arranged on the outer wall of the cabinet body, a fixed plate is fixedly arranged on the inner wall of the cabinet body, a circular ring is fixedly connected to the surface of the fixed plate, a circular plate is fixedly connected to the output end of the first motor and is in through arrangement and rotation connection with the fixed plate, the center of the circular plate is horizontally offset from the center of the circular ring, a first supporting arm is fixedly connected to the circular plate, a horizontal assembly is arranged on the first supporting arm, the horizontal assembly comprises a connecting shaft, the connecting shaft is located at the edge of the first supporting arm and is in rotation connection with the first supporting arm, an installation plate is fixedly connected to the end of the connecting shaft away from the circular ring, a code scanner for scanning the electric meter body is fixedly installed on the outer side of the installation plate, a crank is fixedly connected to the other end of the connecting shaft, a sliding block is rotationally connected to the edge of the crank, the sliding block is in sliding connection with the inner wall of the circular ring, a bar code is arranged on the outer wall of the electric meter body, and the bar code is horizontally projected and overlapped with the code scanner, and the code scanner is signal-connected with the controller, through the arrangement of the horizontal assembly, the code scanner can always keep a horizontal posture during rotation, and then the bar codes on the outer walls of the electric meter bodies arranged in a plurality of circumferences can be sequentially identified, so that the time required for calibration of the device each time can be adapted to the operation time of the operator, and the continuity of the operator during work can be maintained.

[0009] Preferably, a second supporting arm is also fixedly connected to the circular plate, a horizontal assembly is arranged on the second supporting arm, and the shaft center of the balancing plate on the installation plate is offset from the connecting shaft, through the arrangement of the balancing plate, the sliding block can slide along the circular ring more stably, and the stability of the movement process is improved.

[0010] Preferably, a limiting sliding groove is symmetrically formed in the inner wall of the circular ring, a plurality of guide wheels are rotationally connected to the sliding block and located in the limiting sliding groove in the circular ring, through the arrangement of the guide wheels, the sliding block can slide in the limiting sliding groove in the circular ring through the guide wheels, the guide wheels can roll during movement, on the one hand, the sliding block can be limited, and the stability of the sliding block during sliding along the circular ring is improved, and on the other hand, the sliding friction between the sliding block and the circular ring is reduced.

[0011] Preferably, the cabinet door is internally provided with a cavity, and a second motor is fixedly arranged in the cavity; the output end of the second motor is fixedly connected with a first gear; the first gear is rotationally connected with the inner wall of the cabinet door; a plurality of second gears are rotationally connected with the inner wall of the cabinet door in a circumferential array; the second gears are in meshing relationship with the first gear; a pair of arc-shaped sliding grooves are formed in the second gears; a plurality of horizontal sliding grooves are formed in the cabinet door in a circumferential array; the clamping plates are slidingly connected with the horizontal sliding grooves on the cabinet door and the arc-shaped sliding grooves on the second gears through fixing pins. After the ammeter body is mounted on the probe, the second motor can be controlled to start, the directly connected first gear is driven to rotate, the first gear can be meshed with the plurality of second gears, and the second gears are synchronously rotated, the plurality of second gears can drive the pair of clamping plates to move towards each other through the arc-shaped sliding grooves and the horizontal sliding grooves on the cabinet door, so as to clamp and fix the ammeter body, and the operation for fixing all ammeter bodies is simplified. The second motor can be a speed reducer.

[0012] Preferably, the clamping plates are fixedly connected with a pair of pull ropes at the bottom; the clamping plates are in T-shaped structure, and the clamping surfaces facing the ammeter body are provided in hollow structure for avoiding the pull ropes; the end portions of the pull ropes are fixedly connected with a supporting plate, and a plurality of circular holes for passing through the probe are formed in the surface of the supporting plate; a plurality of positioning rods are fixedly connected with the bottom of the supporting plate; a limiting plate is fixedly connected with the bottom of the positioning rods, and the positioning rods are penetratingly arranged in the supporting seat and are slidingly connected; when the ammeter body is calibrated, the bottom shell of the ammeter body abuts against the supporting plate. After calibration, the first gear can be reversely rotated by controlling the second motor, so that the pair of clamping plates move away from each other. The pull ropes can be pulled in the moving process of the clamping plates, the supporting plate can be vertically lifted under the limiting action of the positioning rods, and the ammeter body can be lifted by the supporting plate in the moving process of the supporting plate, so that the wiring column on the ammeter body can be separated from the probe, the ammeter body is lifted, then the ammeter body can be directly taken off from the supporting plate by the staff, the operation for vertically pulling out the ammeter body along the probe is simplified, and the supporting plate can be reset by controlling the second motor to slightly rotate before the subsequent calibration of the next batch of ammeter bodies, so that the pair of clamping plates are close to each other at one end distance, the supporting plate is reset, and the interference of the supporting plate on the placement of the ammeter body is avoided. This is a pre-adjustment operation.

[0013] Preferably, a plurality of vertical plates are fixedly connected with the top of the supporting seat; three first pulleys are rotationally connected with the vertical plates in a staggered manner; grooves for sliding of the pull ropes are formed in the first pulleys; the movement track of the pull ropes can be guided by the three first pulleys, the pulling force of the pull ropes on the supporting plate can be in the vertical direction, the horizontal direction component of the pulling force of the pull ropes on the supporting plate during the resetting of the clamping plates can be reduced, and the stability of the vertical movement of the supporting plate is improved.

[0014] Preferably, one side of the first pulley is provided with a second pulley; the second pulley is rotationally connected with the inner wall of the vertical plate; the pull rope is located between the second pulley and the first pulley; when the size of the meter body to be checked is smaller than the size in the figure, that is, when checking, the distance between the clamping plates is shorter, at this time the pull rope will be separated from the first pulley due to relaxation, by additionally providing the second pulley, the second pulley and the first pulley can constrain and limit the pull rope, so as to reduce the relaxation and separation of the pull rope caused by the small size of the meter body, and also avoid the winding between adjacent pull ropes.

[0015] Preferably, the support seat is fixedly connected with a spring at the bottom; the spring and the limiting plate on the positioning rod are in fixed connection at the top; by setting the spring, in the initial state, the spring is in normal length, when a pair of clamping plates move away from each other, that is, the positioning rod moves upward along the support seat, the spring is in compression state, and the spring exerts a downward force on the positioning rod, so that the subsequent reset of the supporting plate can ensure that the supporting plate can quickly move downward and reset under the action of its own gravity and the elastic force of the spring.

[0016] Preferably, at least one pair of rubber rods are fixedly connected with the support seat at the top; the wire connection port is in interference fit with the rubber rod; by setting the rubber rod, when the meter body is sleeved on the probe through the wire connection column, the rubber rod can also be inserted into the wire connection port, and when the meter body is subsequently lifted by the supporting plate, the meter body can be temporarily fixed on the supporting plate through the friction between the rubber rod and the supporting plate, and since the rubber rod has a certain elasticity, the meter body does not have to be vertically lifted to be removed.

[0017] Preferably, a plurality of heat dissipation holes are formed in the outer side of the cabinet door, and the heat dissipation holes are arranged towards the second motor; by setting the heat dissipation holes, the heat dissipation holes can ventilate the internal cavity of the cabinet door and timely discharge the heat generated by the second motor during operation.

[0018] The advantages of the present application are:

[0019] 1. The intelligent meter checking instrument can make the code scanner always keep a horizontal posture during rotation through the horizontal assembly, and can sequentially identify the identification codes of the meter bodies arranged on the circumference, so that the time required for checking each time by the device can be adapted to the operation time of the operator, and the continuity of the operator during work can be maintained.

[0020] 2. The intelligent meter checking instrument can make the sliding block slide along the ring more stably through the balance plate, and improve the stability of the movement process. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the technical solutions in the embodiments of the present application or the prior art clearer, the accompanying drawings needed in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description only show some embodiments of the present application, and for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0022] Figure 1 The schematic diagram of the main body of the present application;

[0023] Figure 2 The schematic diagram of the structure of the cabinet body in the present application;

[0024] Figure 3 The schematic diagram of the structure of the fixed plate in the present application;

[0025] Figure 4 The schematic diagram of the structure of the round plate in the present application;

[0026] Figure 5 The schematic diagram of the structure of the sliding block in the present application;

[0027] Figure 6 The schematic diagram of the structure of the cabinet door in the present application;

[0028] Figure 7 The schematic diagram of the structure of the support seat in the present application;

[0029] Figure 8 The schematic diagram of the structure of the supporting plate in the present application;

[0030] Figure 9 The schematic diagram of the structure when the electric meter body is verified in the present application;

[0031] Figure 10 The schematic diagram when the electric meter body is lifted in the present application;

[0032] Figure 11 The schematic diagram of the structure of the wiring port in the present application.

[0033] In the drawings: 1, base; 12, cabinet body; 13, cabinet door; 14, controller; 15, support seat; 16, probe; 17, electric meter body; 171, wiring post; 172, wiring port; 18, clamping plate; 19, first motor; 110, fixed plate; 111, round plate; 112, first supporting arm; 113, connecting shaft; 114, mounting plate; 1141, crank; 115, sliding block; 116, round ring; 117, code scanner; 2, second supporting arm; 22, balancing plate; 3, guide wheel; 4, second motor; 42, first gear; 43, second gear; 5, pull rope; 52, supporting plate; 53, positioning rod; 6, vertical plate; 62, first pulley; 7, second pulley; 8, spring; 9, rubber rod; 10, heat dissipation hole. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0035] The specific embodiments are given below.

[0036] Please refer to Figures 1 to 11 As shown in the figure, the intelligent electric meter calibration instrument comprises a base 1, the top of the base 1 is fixedly connected with a cabinet 12, one side of the cabinet 12 is fixedly installed with a controller 14, the other side of the cabinet 12 is installed with a cabinet door 13, the inner wall of the cabinet door 13 is fixedly connected with a plurality of support seats 15 arranged in a circumferential array, the top of the support seat 15 is fixedly connected with a plurality of probes 16, and the top of the support seat 15 is provided with an electric meter body 17, the electric meter body 17 comprises a plurality of terminal posts 171 fixedly arranged, the terminal post 171 is slidably sleeved on the probe 16, the electric meter body 17 further comprises a plurality of wiring ports 172 formed in the bottom, the both sides of the electric meter body 17 are symmetrically provided with clamping plates 18 for fixedly clamping the electric meter body 17, the probe 16 is signal-connected with the controller 14, the outer wall of the cabinet 12 is fixedly provided with a first motor 19, the inner wall of the cabinet 12 is fixedly provided with a fixed plate 110, the surface of the fixed plate 110 is fixedly connected with a circular ring 116, the output end of the first motor 19 is fixedly connected with a circular plate 111, the circular plate 111 is throughly arranged with the fixed plate 110 and is rotationally connected with the fixed plate 110, the center of the circular plate 111 is horizontally staggered with the center of the circular ring 116, the first arm 112 is fixedly connected on the circular plate 111, the horizontal assembly is arranged on the first arm 112, the horizontal assembly comprises a connecting shaft 113, the connecting shaft 113 is located at the edge of the first arm 112 and is rotationally connected with the first arm 112, the end of the connecting shaft 113 away from the circular ring 116 is fixedly connected with a mounting plate 114, the outer side of the mounting plate 114 is fixedly installed with a code scanner 117 for scanning the electric meter body 17, the other end of the connecting shaft 113 is fixedly connected with a crank 1141, the crank 1141 is rotationally connected with a sliding block 115 at the edge, the sliding block 115 is slidingly connected with the inner wall of the circular ring 116, the outer wall of the electric meter body 17 is provided with a bar code, and the bar code is horizontally projected and overlapped with the code scanner 117, the code scanner 117 is signal-connected with the controller 14.

[0037] In operation, the cabinet door 13 can be opened first, and the ammeter body 17 can be installed on the top of the support seat 15 after the probe 16 on the support seat 15 is aligned with the terminal post 171 on the ammeter body 17. The above steps are repeated until all the ammeter bodies 17 are installed. Then the clamping plate 18 can be controlled to clamp and fix the ammeter body 17. Subsequently, the cabinet door 13 can be closed so that the ammeter body 17 can face the code scanner 117. The connection structure between the cabinet 12 and the cabinet door 13 can be a prior art, which will not be described here. The first motor 19 is started to drive the directly connected circular plate 111 to rotate. The circular plate 111 can drive the first branch arm 112 to rotate. In the process, the first branch arm 112 can exert a pushing force on the sliding block 115 through the connected connecting shaft 113 and the crank 1141, so that the sliding block 115 slides along the circular ring 116. At the same time, since the axis of the circular plate 111 and the axis of the connecting shaft 113 can form one long side A of a parallelogram, and the center of the circular ring 116 and the axes of the crank 1141 and the sliding block 115 can form another long side a, the lengths of the two long sides should be equal. The circular plate 111 and the center of the circular ring 116 can form a short side B, and the crank 1141 and the axis of the sliding block 115 and the axis of the connecting shaft 113 can form another short side b. Therefore, when the circular plate 111 rotates, b should always be parallel to B, that is, the components composed of the crank 1141, the connecting shaft 113 and the mounting plate 114 can always remain horizontal during rotation. During the movement of the code scanner 117, the strip-shaped identification codes on the outer walls of the ammeter bodies 17 arranged in a circle can be identified one by one, and the identification information can be transmitted to the controller 14. After identification is completed, the first motor 19 can be turned off, and the ammeter body 17 can be verified through the probe 16 and the terminal post 171. After verification is completed, the cabinet door 13 can be opened, and the ammeter body 17 can be removed from the support seat 15 after the fixation of the ammeter body 17 by the clamping plate 18 is released. It is worth mentioning that the first motor 19 can be a reduction motor. In addition, the support seat 15 and the ammeter body 17 shown in the figure are arranged in multiple numbers. In actual use, the number of ammeter bodies 17 arranged in a circle can be increased uniformly according to the specific detection requirements, that is, the proficiency of the operator, so as to adapt the operation time of the operator.

[0038] Please refer to Figures 2 to 5 As shown in the figure, the second branch arm 2 is also fixed to the circular plate 111. The second branch arm 2 is also provided with a horizontal assembly. The balance plate 22 is rotatably connected between the two mounting plates 114, and the axis of the balance plate 22 on the mounting plate 114 is arranged in a staggered manner with the connecting shaft 113.

[0039] The sliding power of the slider 115 comes from the crank 1141, and the balance plate 22 can connect the adjacent mounting plates 114 as a whole, wherein one mounting plate 114 can transmit power to the crank 1141 directly connected to the other mounting plate 114 through the balance plate 22, thereby improving the stability and balance of the crank 1141 when pushing the slider 115 to slide; by setting the balance plate 22, the slider 115 can slide more stably along the circular ring 116, improving the stability of the movement process.

[0040] Please refer to Figures 2 to 5 As shown, the inner wall of the circular ring 116 is symmetrically provided with a limiting sliding groove; a plurality of guide wheels 3 are symmetrically and rotatably connected to the slider 115, and the guide wheels 3 are located inside the limiting sliding groove on the circular ring 116.

[0041] By setting the guide wheels 3, the slider 115 can slide in the limiting sliding groove in the circular ring 116 through the guide wheels 3. The guide wheels 3 can roll when moving, which can limit the slider 115 on one hand and improve the stability of the slider 115 when sliding along the circular ring 116, and on the other hand can reduce the sliding friction between the slider 115 and the circular ring 116.

[0042] Please refer to Figures 6 to 8 As shown, the cabinet door 13 is internally provided with a cavity, and a second motor 4 is fixedly arranged in the cavity; the output end of the second motor 4 is fixedly connected with a first gear 42; the first gear 42 is rotatably connected with the inner wall of the cabinet door 13; a plurality of second gears 43 are rotatably connected inside the cabinet door 13 and arranged in a circular array; the second gears 43 are in meshing relationship with the first gear 42; an arc-shaped sliding groove is formed on the second gear 43; a plurality of horizontal sliding grooves are formed on the cabinet door 13 and arranged in a circular array; the clamping plate 18 is slidably connected with the horizontal sliding groove on the cabinet door 13 and the arc-shaped sliding groove on the second gear 43 through a fixed pin.

[0043] After the ammeter body 17 is installed on the probe 16, the second motor 4 can be controlled to start, driving the directly connected first gear 42 to rotate. The first gear 42 can mesh with a plurality of second gears 43, and the second gears 43 can be synchronously rotated. A pair of clamping plates 18 can be driven to move towards each other by the arc-shaped sliding groove and the horizontal sliding groove on the cabinet door 13, so as to clamp and fix the ammeter body 17, thereby simplifying the operation when fixing all ammeter bodies 17. Here, the second motor 4 can be a reduction motor.

[0044] Please refer to Figures 8 to 10As shown, a pair of pull ropes 5 are fixedly connected to the bottom of the clamping plate 18; the clamping plate 18 has a T-shaped structure, and the clamping surface facing the meter body 17 is hollowed out to avoid the pull ropes 5; a support plate 52 is fixedly connected to the end of the pull rope 5, and multiple round holes for the probe 16 to pass through are opened on the surface of the support plate 52; multiple positioning rods 53 are fixedly connected to the bottom of the support plate 52; a limit plate is fixedly connected to the bottom of the positioning rod 53, and the positioning rod 53 and the support base 15 are through-connected and slidably connected;

[0045] When the meter body 17 is being calibrated, its bottom casing abuts against the support plate 52, such as... Figure 9 As shown, after the verification is completed, the first gear 42 can be reversed by controlling the second motor 4 to make the pair of clamping plates 18 move away from each other. During the movement of the clamping plates 18, the pull rope 5 can be pulled, and the pull rope 5 will apply an oblique pulling force to the support plate 52. The support plate 52 can rise vertically under the limiting action of the positioning rod 53. During the upward movement of the support plate 52, the meter body 17 can be lifted, so that the terminal 171 on the meter body 17 can be disengaged from the probe 16, thereby lifting the meter body 17. Figure 10 As shown, the staff can then directly remove the meter body 17 from the tray 52, simplifying the operation of vertically pulling out the meter body 17 along the probe 16. Before calibrating the next batch of meter bodies 17, the second motor 4 can be slightly rotated to move the pair of clamps 18 closer to one end to reset the tray 52 and avoid interfering with the placement of the meter body 17. This is a pre-adjustment operation. It is also worth mentioning that compared with the cylinder ejection method, which requires cylinders to be set up sequentially at the bottom of multiple support seats 15 and the air circuit of the cylinders to be designed and connected, it will occupy a lot of installation space. The above-mentioned method can save the installation space on the cabinet door 13 and also eliminate the need for electrical linkage settings for multiple cylinders.

[0046] Please see Figures 8 to 10 As shown, a plurality of upright plates 6 are fixedly connected to the top of the support base 15; three staggered first pulleys 62 are rotatably connected to the upright plates 6; the first pulleys 62 are provided with grooves for the pull rope 5 to slide.

[0047] The movement trajectory of the pull rope 5 can be guided by the three staggered first pulleys 62. That is, the pulling force applied by the pull rope 5 to the support plate 52 can be in the vertical direction, which can reduce the horizontal component of the force applied by the pull rope 5 to the support plate 52 when the clamp 18 is reset, and improve the stability of the support plate 52 when it moves vertically.

[0048] Please see Figure 9 and Figure 10 As shown, a second pulley 7 is provided on one side of the first pulley 62; the second pulley 7 is rotatably connected to the inner wall of the upright plate 6; the pull rope 5 is located between the second pulley 7 and the first pulley 62;

[0049] When the size of the meter body 17 to be calibrated is smaller than the size shown in the figure, that is, during calibration, the distance between the clamps 18 needs to be shorter. At this time, the pull rope 5 may become loose and detach from the first pulley 62. By adding a second pulley 7, the second pulley 7 and the first pulley 62 can constrain and limit the pull rope 5, so as to reduce the loosening and detachment of the pull rope 5 due to the small size of the meter body 17, and also avoid the situation of entanglement between adjacent pull ropes 5.

[0050] Please see Figure 9 As shown, a spring 8 is fixedly connected to the bottom of the support base 15; the spring 8 and the top of the limiting plate on the positioning rod 53 are fixedly connected.

[0051] By setting the spring 8, in the initial state, the spring 8 is at its normal length. When the pair of clamps 18 move away from each other, that is, when the positioning rod 53 moves upward along the support base 15, the spring 8 will be in a compressed state. The spring 8 will apply a downward pushing force to the positioning rod 53, which can ensure that when the support plate 52 is reset later, the support plate 52 can quickly move downward and reset under its own weight and the elastic force of the spring 8.

[0052] Please see Figure 8 and Figure 11 As shown, at least one pair of rubber rods 9 are fixedly connected to the top of the support base 15; the connection port 172 and the rubber rods 9 are interference fit;

[0053] By setting the rubber rod 9, when the meter body 17 is sleeved on the probe 16 through the terminal 171, the rubber rod 9 can also be inserted into the terminal 172. When the meter body 17 is subsequently lifted by the support plate 52, the meter body 17 can be temporarily fixed on the support plate 52 by the friction between it and the rubber rod 9. Furthermore, since the rubber rod 9 has a certain elasticity, the meter body 17 does not need to be lifted vertically to be removed.

[0054] Please see Figure 1 and Figure 6 As shown, the cabinet door 13 has multiple heat dissipation holes 10 on its outer side, and the heat dissipation holes 10 are oriented towards the second motor 4;

[0055] By setting heat dissipation holes 10, the internal cavity of the cabinet door 13 can be ventilated to dissipate the heat generated by the second motor 4 during operation.

[0056] Working principle: First, open the cabinet door 13. Manually align the terminals 171 on the meter body 17 with the probes 16 on the support base 15, then install the meter body 17 onto the top of the support base 15. Repeat the above steps until all meter bodies 17 are installed. Then, control the clamping plate 18 to clamp and fix the meter body 17. Next, close the cabinet door 13 so that the meter body 17 faces the barcode scanner 117. The connection structure between the cabinet body 12 and the cabinet door 13 can be existing technology and will not be described in detail here. Start the first motor 19 to drive the directly connected circular plate 111 to rotate. The circular plate 111 can drive the first support arm 112 to rotate. During the process, the first support arm... Arm 112 can apply a pushing force to slider 115 via the connecting shaft 113 and crank 1141, causing it to slide along ring 116. Simultaneously, since the axis of the circular plate 111 and the axis of the connecting shaft 113 form one long side A of a parallelogram, and the center of the ring 116 and the axis of rotation between crank 1141 and slider 115 form another long side a, the two long sides should be of equal length. The center of the circular plate 111 and the center of the ring 116 form a short side B, while the axis of rotation between crank 1141 and slider 115 and the axis of the connecting shaft 113 form another short side b. Therefore, when the circular plate 111 rotates, b should always remain parallel to B. The components consisting of crank 1141, connecting shaft 113, and mounting plate 114 can maintain a horizontal state at all times during rotation. During operation, the barcode scanner 117 can identify each barcode on the outer wall of the circumferentially arranged meter body 17 and transmit the identification information to the controller 14. After identification, the first motor 19 can be turned off, and the meter body 17 can be verified through probe 16 and terminal 171. After verification, the cabinet door 13 can be opened, the clamp 18 can be released from fixing the meter body 17, and the meter body 17 can be removed from the support base 15. It is worth noting that the first motor 19 can specifically be a geared motor; the slider 115 has sliding power. The power originates from the crank 1141, while the balance plate 22 can connect adjacent mounting plates 114 into a whole. One mounting plate 114 can transmit power to the crank 1141 directly connected to the other mounting plate 114 through the balance plate 22, thereby improving the stability and balance when the crank 1141 pushes the slider 115 to slide. By setting the guide wheel 3, the slider 115 can slide in the limiting groove in the ring 116 through the guide wheel 3. The guide wheel 3 can roll when moving, which can limit the slider 115 and improve the stability of the slider 115 when sliding along the ring 116, and reduce the sliding friction between the slider 115 and the ring 116.After the meter body 17 is installed onto the probe 16, the second motor 4 can be started to drive the directly connected first gear 42 to rotate. The first gear 42 can mesh with multiple second gears 43, causing the second gears 43 to rotate synchronously. The multiple second gears 43 can drive a pair of clamping plates 18 to move towards each other through the arc-shaped sliding groove and the horizontal sliding groove on the cabinet door 13, so as to clamp and fix the meter body 17, simplifying the operation of fixing all the meter bodies 17. Here, the second motor 4 can be a geared motor. When the meter body 17 is calibrated, its bottom outer shell abuts against the support plate 52. After the calibration is completed, the second motor 4 can be started to drive the meter body 17 to rotate. The first gear 42 is reversed to move the pair of clamping plates 18 away from each other. During this movement, the clamping plates 18 pull the pull rope 5, which in turn applies a diagonal pulling force to the support plate 52. The support plate 52 rises vertically under the limiting action of the positioning rod 53. As the support plate 52 moves upward, it lifts the meter body 17, allowing the terminals 171 on the meter body 17 to detach from the probe 16, thus lifting the meter body 17. Then, the operator can directly remove the meter body 17 from the support plate 52, simplifying the operation of vertically pulling the meter body 17 along the probe 16. Before calibrating the next batch of meter bodies 17, the first gear 42 can be controlled... The two motors 4 rotate slightly, even if a pair of clamping plates 18 are close to one end, to reset the support plate 52 and avoid interfering with the placement of the meter body 17. This is a pre-adjustment operation. The movement trajectory of the pull rope 5 can be guided by three staggered first pulleys 62, that is, the pulling force applied by the pull rope 5 to the support plate 52 can be in the vertical direction, which can reduce the horizontal component of the force applied by the pull rope 5 to the support plate 52 when the clamping plates 18 are reset, and improve the stability of the support plate 52 when moving vertically. When the size of the meter body 17 to be calibrated is smaller than the size shown in the figure, that is, during calibration, the distance between the clamping plates 18 should be shorter. At this time, the pull rope 5 may detach from the first pulley due to slack. Regarding pulley 62, by adding a second pulley 7, the second pulley 7 and the first pulley 62 can constrain and limit the pull rope 5, thereby reducing the possibility of the pull rope 5 becoming loose and detached due to the small size of the meter body 17, and also avoiding the situation of entanglement between adjacent pull ropes 5; by setting spring 8, in the initial state, spring 8 is at its normal length. When a pair of clamps 18 move away from each other, that is, when the positioning rod 53 moves upward along the support base 15, spring 8 will be in a compressed state. Spring 8 will apply a downward pushing force to the positioning rod 53, which can ensure that when the support plate 52 is reset later, the support plate 52 can quickly move downward and reset under its own weight and the elastic force of spring 8;By setting the rubber rod 9, when the meter body 17 is sleeved on the probe 16 via the terminal 171, the rubber rod 9 can also be inserted into the terminal 172. Subsequently, when the meter body 17 is lifted by the support plate 52, the meter body 17 can be temporarily fixed to the support plate 52 through friction with the rubber rod 9. Furthermore, because the rubber rod 9 has a certain degree of elasticity, the meter body 17 does not need to be lifted vertically to be removed. By setting the heat dissipation holes 10, the internal cavity of the cabinet door 13 can be ventilated to promptly dissipate the heat generated by the second motor 4 during operation.

[0057] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A smart meter calibration instrument, comprising a base (1), characterized in that: A cabinet (12) is fixedly connected to the top of the base (1); a controller (14) is fixedly installed on one side of the cabinet (12); a cabinet door (13) is installed on the other side of the cabinet (12); a plurality of support seats (15) arranged in a circular array are fixedly connected to the inner wall of the cabinet door (13); a plurality of probes (16) are fixedly connected to the top of the support seats (15), and a meter body (17) is provided on the top of the support seats (15); the meter body (17) includes a plurality of terminals (171) fixedly connected, and the terminals (171) are slidably sleeved on the probes (16); the meter body (17) also includes a plurality of wiring ports (172) opened at the bottom; clamps (18) are symmetrically provided on both sides of the meter body (17), and the clamps (18) are used to fix and clamp the meter body (17); the probes (16) and the controller (14) are connected by signals. A first motor (19) is fixedly installed on the outer wall of the cabinet (12); a fixing plate (110) is fixedly installed on the inner wall of the cabinet (12); a ring (116) is fixedly connected to the surface of the fixing plate (110); a circular plate (111) is fixedly connected to the output end of the first motor (19), and the circular plate (111) and the fixing plate (110) are connected through each other and rotatably; the center of the circular plate (111) and the center of the ring (116) are horizontally offset; a first support arm (112) is fixedly connected to the circular plate (111); a horizontal component is provided on the first support arm (112); The horizontal assembly includes a connecting shaft (113), which is located near the edge of the first arm (112) and is rotatably connected to the first arm (112); a mounting plate (114) is fixedly connected to one end of the connecting shaft (113) away from the ring (116), and a barcode scanner (117) for scanning the meter body (17) is fixedly installed on the outside of the mounting plate (114); a crank (1141) is fixedly connected to the other end of the connecting shaft (113); a slider (115) is rotatably connected to the crank (1141) near the edge; the slider (115) is slidably connected to the inner wall of the ring (116); a barcode is provided on the outer wall of the meter body (17), and the barcode and the barcode scanner (117) are projected to coincide in the horizontal direction; the barcode scanner (117) is signal connected to the controller (14).

2. The smart meter calibration instrument according to claim 1, characterized in that: A second arm (2) is also fixedly connected to the circular plate (111); a horizontal component is also provided on the second arm (2); a balance plate (22) is rotatably connected between the two mounting plates (114), and the axis of the balance plate (22) on the mounting plate (114) is misaligned with the connecting shaft (113).

3. The smart meter calibration instrument according to claim 2, characterized in that: The inner wall of the ring (116) is symmetrically provided with limit grooves; multiple guide wheels (3) are symmetrically rotatably connected on the slider (115), and the guide wheels (3) are located inside the upper limit groove of the ring (116).

4. The smart meter calibration instrument according to claim 3, characterized in that: The cabinet door (13) has an internal cavity, and a second motor (4) is fixedly installed inside the cavity; the output end of the second motor (4) is fixedly connected to a first gear (42); the first gear (42) is rotatably connected to the inner wall of the cabinet door (13); multiple second gears (43) arranged in a circular array are rotatably connected inside the cabinet door (13); the second gears (43) and the first gears (42) are meshed; a pair of arc-shaped sliding grooves are opened on the second gears (43); multiple horizontal sliding grooves arranged in a circular array are opened on the cabinet door (13); the clamping plate (18) is slidably connected to the horizontal sliding grooves on the cabinet door (13) and the arc-shaped sliding grooves on the second gears (43) by a fixing pin.

5. The smart meter calibration instrument according to claim 4, characterized in that: A pair of pull ropes (5) are fixed to the bottom of the clamping plate (18); the clamping plate (18) is a T-shaped structure, and the clamping surface facing the meter body (17) is hollowed out to avoid the pull ropes (5); a support plate (52) is fixed to the end of the pull rope (5), and multiple round holes for the probe (16) to pass through are opened on the surface of the support plate (52); multiple positioning rods (53) are fixed to the bottom of the support plate (52); a limit plate is fixed to the bottom of the positioning rod (53), and the positioning rod (53) and the support base (15) are through-connected and slidably connected.

6. The smart meter calibration instrument according to claim 5, characterized in that: The support base (15) has multiple upright plates (6) fixedly connected to its top; three staggered first pulleys (62) are rotatably connected to the upright plates (6); the first pulleys (62) have grooves for the pull rope (5) to slide.

7. The smart meter calibration instrument according to claim 6, characterized in that: A second pulley (7) is provided on one side of the first pulley (62); the second pulley (7) is rotatably connected to the inner wall of the upright plate (6); the pull rope (5) is located between the second pulley (7) and the first pulley (62).

8. The smart meter calibration instrument according to claim 7, characterized in that: A spring (8) is fixedly connected to the bottom of the support base (15); the spring (8) and the top of the limiting plate on the positioning rod (53) are fixedly connected.

9. A smart meter calibration instrument according to claim 8, characterized in that: At least one pair of rubber rods (9) are fixedly connected to the top of the support base (15); the connection port (172) and the rubber rods (9) are interference fit.

10. A smart meter calibration instrument according to claim 9, characterized in that: The cabinet door (13) has multiple heat dissipation holes (10) on its outer side, and the heat dissipation holes (10) are set towards the second motor (4).

Images