A modular meter holder quick-change compatible electric energy meter calibration device

Abstract

The present invention discloses a module meter holder quick-change compatible electric energy meter calibration device. When it is necessary to detect electric energy meters of different types or sizes, the operator can replace the corresponding detection meter holder and related structures relatively quickly. The compatibility and adaptability are good. In the process of replacing the detection meter holder and related structures, the line replacement and wiring steps at the electric measuring equipment end can be effectively saved, and the efficiency is high. The main structure of the present application includes a main frame, an electric measuring end structure and a meter holder end structure. The electric measuring end structure includes an electric measuring end crimping plate, a plurality of crimping module pins and an electric measuring end power element. A protective plate is provided on the electric measuring end crimping plate. A crimping module rear terminal is provided at the rear end of the crimping module pin. The meter holder end structure includes a meter holder end bottom plate, a meter holder end adapter plate, an adapter plug-in module, a detection meter holder and a meter holder end power element. A plurality of detection pins are provided on the detection meter holder. The detection pins are provided with detection pin wiring terminals. The front end of the electric connection socket is provided with an electric connection front terminal.

Description

Technical Field

[0001] The present invention belongs to the technical field of electric energy meter calibration lines and electric energy meter detection equipment, and in particular relates to a module meter holder quick-change compatible electric energy meter calibration device. Background Art

[0002] At the inspection station of the electric energy meter calibration line, there will be arranged a detection equipment for detecting (calibrating) the electric energy meter, which includes a plurality of detection pins for contacting the conductive terminals on the electric energy meter being tested (such as a power detection pin for contacting the power terminal on the electric energy meter, a current detection pin for contacting the current terminal on the electric energy meter, a voltage detection pin for contacting the voltage terminal on the electric energy meter, a signal detection pin for contacting the signal terminal on the electric energy meter, etc.). However, the detection equipment is often only suitable for electric energy meters of a certain type and size, such as a single-phase (electricity) meter, a three-phase (electricity) meter, or a terminal (electricity) meter of a certain size. This is because different types of electric energy meters, or electric energy meters of the same type but different sizes, have different numbers of pins (the number of detection pins) and the positions of the detection pins. Summary of the Invention

[0003] The present invention provides a modular meter holder quick-change compatible electric energy meter calibration device. When it is necessary to detect electric energy meters of different types or sizes, the operator can replace the corresponding detection meter holder and related structures relatively quickly. It has good compatibility and adaptability. In the process of replacing the detection meter holder and related structures, it can effectively save the line replacement and wiring steps on the electric measuring equipment end, and has high efficiency.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A module meter holder quick-change compatible electric energy meter calibration device, comprising a main frame, an electric measuring end structure and a meter holder end structure;

[0006] The electric measuring end structure includes an electric measuring end crimping plate that can move horizontally relative to the main frame, a plurality of crimping module pins arranged on the electric measuring end crimping plate, and an electric measuring end power element for driving the electric measuring end crimping plate to move. The electric measuring end crimping plate is provided with a protective plate, and the rear end of the crimping module pins is provided with a crimping module rear terminal;

[0007] The meter support end structure includes a meter support end bottom plate detachably connected to the main frame, a meter support end adapter plate provided on the meter support end bottom plate, an adapter plug-in module provided on the meter support end adapter plate, a detection meter support movable relative to the meter support end bottom plate, and a meter support end power element for driving the detection meter support to move;

[0008] The detection meter support is provided with a plurality of detection pins for contacting the terminals of the electric energy meter, and the detection pins are provided with detection pin wiring terminals. The adapter plug-in module includes a plurality of electrical sockets corresponding one-to-one to the crimping module pins. The front end of the electrical socket is provided with an electrical front wiring terminal for wiring with the detection pin wiring terminals. After the crimping module pins are plugged into the corresponding electrical sockets: each detection pin wiring terminal and each electrical front wiring terminal are located under the guard plate.

[0009] Preferably, two side fixing seats are provided on the bottom plate of the meter holder, and the two side fixing seats are located on opposite sides of the crimping detection meter holder, and the two side fixing seats are located on opposite sides of any electrical socket.

[0010] Preferably, the adapter plug-in module adopts an aviation socket.

[0011] Preferably, a part of the front terminals of the electric connection are arranged in sequence along the length direction of the adapter plate at the meter support end and together constitute the upper row of terminals, and the remaining front terminals of the electric connection are arranged in sequence along the length direction of the adapter plate at the meter support end and together constitute the lower row of terminals, and the upper row of terminals are located above the lower row of terminals.

[0012] Preferably, it further includes a line adjustment mechanism, wherein the bottom plate of the table support end is provided with an avoidance opening for avoiding the line adjustment mechanism, and the line adjustment mechanism includes two fixed guide plates fixed to the main frame, two parallelogram four-bar linkage structures corresponding to the fixed guide plates, and a linkage driving element for driving the parallelogram four-bar linkage structure;

[0013] In the corresponding fixed guide plate and parallelogram four-bar linkage structure: the parallelogram four-bar linkage structure includes a first upper rod, a second upper rod, a third lower rod and a fourth lower rod, the first upper rod and the second upper rod are hinged via a 12-hinged axis, the second upper rod and the third lower rod are hinged via a 23-hinged axis, the third lower rod and the fourth lower rod are hinged via a 34-hinged axis, the fourth lower rod and the first upper rod are hinged via a 14-hinged axis, and the 12-hinged axis, the 23-hinged axis, the 34-hinged axis and the 14-hinged axis are all slidably connected to the fixed guide plate;

[0014] The sliding directions of the first and second hinge shafts and the third and fourth hinge shafts are both vertical, and the sliding directions of the second and third hinge shafts and the first and fourth hinge shafts are both horizontal. An upper adjusting rod is coaxially connected to each of the first and second hinge shafts, and an elastic rubber tube is sleeved on the upper adjusting rod. A lower adjusting rod is coaxially connected to each of the third and fourth hinge shafts, and an elastic rubber tube is sleeved on the lower adjusting rod.

[0015] Preferably, the fixed guide plate is provided with an upper vertical slide groove, a lower vertical slide groove, a front horizontal slide groove and a rear horizontal slide groove, and the side fixed seat is provided with a vertical slide groove. In the corresponding fixed guide plate and the parallelogram four-bar structure: the first and second hinge shafts slide in cooperation with the upper vertical slide groove, the third and fourth hinge shafts slide in cooperation with the lower vertical slide groove, the second and third hinge shafts slide in cooperation with the front horizontal slide groove, and the first and fourth hinge shafts slide in cooperation with the rear horizontal slide groove.

[0016] The lower adjusting rod comprises an upper left rod coaxially connected to a one-two hinge shaft, an upper right rod coaxially connected to another one-two hinge shaft, an upper left sleeve slidably connected to the upper left rod, and an upper right sleeve slidably connected to the upper right rod, the upper left sleeve is clamped with the upper right sleeve, a left rubber sleeve is provided on the upper left sleeve, and a right rubber sleeve is provided on the upper right sleeve, and the right rubber sleeve on the upper left sleeve and the right rubber sleeve on the upper right sleeve together constitute an elastic rubber tube sleeved on the upper adjusting rod; the lower adjusting rod comprises a lower left rod coaxially connected to a three-four hinge shaft, a lower right rod coaxially connected to the other three-four hinge shaft, a lower left sleeve slidably connected to the lower left rod, and a lower right sleeve slidably connected to the lower right rod, the lower left sleeve is clamped with the lower right sleeve, the lower left sleeve is provided with a left rubber sleeve, the lower right sleeve is provided with a right rubber sleeve, and the right rubber sleeve on the lower left sleeve and the right rubber sleeve on the lower right sleeve together constitute an elastic rubber tube sleeved on the lower adjusting rod.

[0017] Preferably, the connecting rod driving element is two four-link driving cylinders corresponding one to one with the third and fourth hinge shafts. In the corresponding third and fourth hinge shafts and four-link driving cylinders: the cylinder rod of the four-link driving cylinder is provided with a ring which is sleeved outside the third and fourth hinge shafts, and the third and fourth hinge shafts rotate in cooperation with the ring.

[0018] Preferably, the electric measuring end power element includes an electric measuring end driving cylinder and an electric measuring end floating joint, the cylinder body of the electric measuring end driving cylinder is arranged on the main frame, and the cylinder rod of the electric measuring end driving cylinder is connected to the electric measuring end crimping plate through the electric measuring end floating joint, and the meter support end power element includes a meter support end driving cylinder and a meter support end floating joint, the cylinder body of the meter support end driving cylinder is arranged on the meter support end bottom plate, and the cylinder rod of the meter support end driving cylinder is connected to the detection meter support through the meter support end floating joint.

[0019] Preferably, the main frame is provided with two parallel linear guide rails, the linear guide rails are provided with sliders that cooperate with the linear guide rails, the sliding direction of the sliders is horizontal, and the sliders are fixed to the bottom of the electrical measuring end crimping plate.

[0020] The beneficial effects of the present invention are: when it is necessary to detect electric energy meters of different types or sizes, the operator can replace the corresponding detection meter holder and related structures relatively quickly, with good compatibility and adaptability, and in the process of replacing the detection meter holder and related structures, it can effectively save the wire replacement and wiring steps at the electric measuring equipment end, and is highly efficient; the meter holder end structure has the ability to adjust the wires, and during the detection and resetting process, the wires can be more inclined to "whole bend" rather than "partial bend", which can ensure the service life of the wires, and before each detection, it can also automatically detect whether the wiring is loose. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 is a side view of the present invention;

[0023] Figure 3 is a top view of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the upper adjustment rod and the lower adjustment rod of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the fixed guide plate of the present invention;

[0026] Figure 6 yes Figure 4 Enlarged view of point A in the middle;

[0027] Figure 7 1 is a schematic structural diagram of the parallelogram four-bar linkage structure of the present invention;

[0028] Figure 8 It is a partial schematic diagram of the present invention.

[0029] Figure numerals: main frame 1, linear guide 101, slider 102, electrical measuring end crimping plate 2, guard plate 201, crimping module pin 3, crimping module rear terminal 301, table support end bottom plate 4, avoidance port 4a, side fixing seat 401, table support end adapter plate 5, detection table support 501, detection pin 502, detection pin terminal 503, electrical connection socket 6, electrical connection front terminal 601, fixed guide plate 7, first upper rod 801, second upper rod 802, third lower rod 803, fourth lower rod 804, first and second hinge shafts 805, second and third hinge shafts 8 06, hinge shaft 34 807, hinge shaft 14 808, upper adjusting rod 701, upper left rod 701.1, upper right rod 701.2, upper left sleeve 701.3, upper right sleeve 701.4, elastic rubber tube 702, left rubber sleeve 702.1, right rubber sleeve 702.2, lower adjusting rod 703, lower left rod 703.1, lower right rod 703.2, lower left sleeve and 703.3, lower right sleeve 703.4, four-link driving cylinder 704, ring 705, upper vertical slide 8a, lower vertical slide 8b, front horizontal slide 8c, rear horizontal slide 8d. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 As shown,

[0032] A modular meter holder quick-change compatible electric energy meter calibration device, comprising a main frame 1, an electric measuring end structure and a meter holder end structure;

[0033] The electric measuring end structure includes an electric measuring end crimping plate 2 that can move horizontally relative to the main frame 1, a plurality of crimping module pins 3 provided on the electric measuring end crimping plate 2, and an electric measuring end power element for driving the electric measuring end crimping plate 2 to move. A protective plate 201 is provided on the electric measuring end crimping plate 2, and a crimping module rear terminal 301 is provided at the rear end of the crimping module pins 3;

[0034] The meter support end structure includes a meter support end base plate 4 detachably connected to the main frame 1, a meter support end adapter plate 5 provided on the meter support end base plate 4, an adapter plug-in module provided on the meter support end adapter plate 5, a detection meter support 501 movable relative to the meter support end base plate 4, and a meter support end power element for driving the detection meter support 501 to move;

[0035] The detection meter support 501 is provided with multiple detection pins 502 for contacting the terminals of the electric energy meter, and the detection pins 502 are provided with detection pin connection terminals 503. The adapter plug-in module includes multiple electrical sockets 6 corresponding one to one with the crimping module pins 3. The front end of the electrical socket 6 is provided with an electrical front connection terminal 601 for connecting with the detection pin connection terminals 503. After the crimping module pins 3 are plugged into the corresponding electrical socket 6, each detection pin connection terminal 503 and each electrical front connection terminal 601 are all located below the protective plate 201.

[0036] There are screw holes on the front connection terminal 601 and screw holes on the detection pin connection terminal 503. The base plate 4 of the meter support end and the main frame 1 can be connected by snap connection / screw connection, as long as it is a conventional detachable connection method.

[0037] The rear terminal 301 of the crimping module at the rear end of the crimping module pin 3 is connected to the electric measuring device end through an electric wire (the electric measuring device end belongs to the existing technology and can obtain the data measured from the electric energy meter under test and determine whether the electric energy meter under test is qualified).

[0038] The meter holder structure can be replaced based on the specific energy meter being tested, while the remaining components, particularly the measuring terminal, are standardized. This allows for testing different meters by simply replacing the corresponding meter holder structure, while the measuring terminal components themselves do not require replacement or rewiring. To accommodate a wide range of energy meters, the number of pins 3 on the crimp module is configured to accommodate the wiring configurations of various meter holders.

[0039] Therefore, when the meter support structure needs to be replaced, the operator only needs to allow the power element of the electric measuring end to drive the electric measuring end crimping plate 2 to move, so that the crimping module pins 3 are separated from the corresponding electrical connection sockets 6 (at this time, the protective plate 201 also leaves the upper part of the detection pin 502 terminal and the upper part of the front connection terminal). Then, the operator can remove the current meter support structure and replace it with a new meter support structure (each detection pin connection terminal 503 is connected to the corresponding electrical connection front connection terminal 601 with an electric wire). Subsequently, the power element of the electric measuring end drives the power element of the electric measuring end crimping plate 2 to move, so that the crimping module pins 3 are reconnected to the corresponding electrical connection sockets 6. At the same time, the protective plate 201 once again blocks each detection pin connection terminal 503 and each electrical connection front connection terminal 601 from above (that is, blocks the wires between the detection pin connection terminal 503 and the electrical connection front connection terminal 601). This also means that when the crimping module pin 3 is not separated from the electrical socket 6, the operator cannot operate the wiring (wires) between the detection pin terminal 503 and the electrical front terminal 601, which can ensure the safety of the operator.

[0040] During testing, the power element on the meter holder side drives the test meter holder 501 to move, causing the test meter holder 501 and its test pins 502 to contact the corresponding conductive terminals on the meter being tested. During this process, the wires connected between the test pin terminals 503 and the pre-connection terminals 601 are pulled and stretched slightly (increasing the distance between the test pin terminals 503 and the pre-connection terminals 601), allowing the meter to be calibrated through the electrical measuring device. Furthermore, when the power element on the meter holder side drives the test meter holder 501 to move and reset, the wires connected between the test pin terminals 503 and the pre-connection terminals 601 are partially or completely bent (increasing the distance between the test pin terminals 503 and the pre-connection terminals 601). Note: Wire bending is a common phenomenon on various testing devices. Given the frequent operation of testing equipment, wires should be regularly inspected. If a wire is found to be nearing failure due to excessive bending, it should be replaced as soon as possible.

[0041] It should be noted that the connection between the test pin terminal 503 and the front connection terminal 601 can be achieved by either directly wrapping the wire around the terminal or by using a crimping screw to press one end of the wire onto the terminal. As previously mentioned, the front connection terminal 601 and the test pin terminal 503 both have screw holes. This allows the wire end to be directly pressed onto the terminal using a crimping screw.

[0042] Two side fixing seats 401 are provided on the bottom plate 4 of the meter holder end. The two side fixing seats 401 are located on opposite sides of the crimping detection meter holder 501 and on opposite sides of any electrical socket 6 .

[0043] The side fixing seat 401 can shield the detection pin terminal 503, the front connection terminal 601, and the connection between the detection pin terminal 503 and the front connection terminal 601 on both sides, thereby providing further protection.

[0044] The transfer plug-in module adopts an aviation socket.

[0045] A portion of the front terminals 601 are arranged in sequence along the length direction of the adapter plate 5 at the meter support end and together constitute the upper row of terminals, and the remaining front terminals 601 are arranged in sequence along the length direction of the adapter plate 5 at the meter support end and together constitute the lower row of terminals, and the upper row of terminals is located above the lower row of terminals.

[0046] The length direction of the adapter plate 5 at the meter support end is horizontal and perpendicular to the moving direction of the electrical measuring end crimping plate 2. The moving direction of the electrical measuring end crimping plate 2 is parallel to the moving direction of the test meter support 501.

[0047] The front connection terminals 601 are arranged in rows and regularly distributed, which is convenient for connection operation.

[0048] It also includes a line adjustment mechanism. The bottom plate 4 of the table support end is provided with an avoidance opening 4a for avoiding the line adjustment mechanism. The line adjustment mechanism includes two fixed guide plates 7 fixed to the main frame 1, two parallelogram four-bar linkage structures corresponding to the fixed guide plates 7, and a linkage driving element for driving the parallelogram four-bar linkage structure.

[0049] In the corresponding fixed guide plate 7 and parallelogram four-bar linkage structure: the parallelogram four-bar linkage structure includes a first upper rod 801, a second upper rod 802, a third lower rod 803 and a fourth lower rod 804, the first upper rod 801 and the second upper rod 802 are hinged by a one-two hinge shaft 805, the second upper rod 802 and the third lower rod 803 are hinged by a two-three hinge shaft 806, the third lower rod 803 and the fourth lower rod 804 are hinged by a three-four hinge shaft 807, the fourth lower rod 804 and the first upper rod 801 are hinged by a one-four hinge shaft 808, and the one-two hinge shaft 805, the two-three hinge shaft 806, the three-four hinge shaft 807 and the one-four hinge shaft 808 are all slidably connected to the fixed guide plate 7;

[0050] The sliding directions of the first and second hinge shafts 805 and the third and fourth hinge shafts 807 are both vertical, and the sliding directions of the second and third hinge shafts 806 and the first and fourth hinge shafts 808 are both horizontal. An upper adjusting rod 701 is coaxially connected to each of the first and second hinge shafts 805, and an elastic rubber tube 702 is sleeved on the upper adjusting rod 701. A lower adjusting rod 703 is coaxially connected to each of the third and fourth hinge shafts 807, and an elastic rubber tube 702 is sleeved on the lower adjusting rod 703.

[0051] The upper adjusting rod 701 is parallel to the lower adjusting rod 703 , and the length direction of the upper adjusting rod 701 is horizontal and perpendicular to the moving direction of the electrical measuring end crimping plate 2 .

[0052] In the present invention, taking into account the limited space and to prevent the wires from crossing or even getting tangled, when wiring the detection pin terminal 503 and the corresponding front connection terminal 601, the wire length should be as short as possible, that is, when there are no other structural influences, when the detection pins 502 on the detection meter holder 501 contact the corresponding conductive terminals on the electric energy meter being tested, the wires are close to a tensioned state.

[0053] During replacement of the meter holder end structure, whether during disassembly or installation, the presence of the clearance 4a prevents interference. During replacement of the meter holder end structure, when the operator connects each test pin terminal 503 to the corresponding front connection terminal 601 with wires, a portion of the wires passes from above around the upper adjustment rod 701 (and the elastic rubber sleeve 702 thereon), while another portion of the wires passes from below around the lower adjustment rod 703 (and the elastic rubber sleeve 702 thereon).

[0054] As mentioned above, "When the detection action is carried out, the wire connected between the detection pin terminal 503 and the front connection terminal 601 will be pulled and spread out a little (the distance between the detection pin terminal 503 and the front connection terminal 601 becomes farther), and the wire connected between the detection pin terminal 503 and the front connection terminal 601 will be partially bent or bent as a whole (the distance between the detection pin terminal 503 and the front connection terminal 601 becomes closer)". The number of times a wire can be bent (its lifespan) is limited, and the wire in the present invention (referring to the connection between the detection pin terminal 503 and the corresponding front connection terminal 601, and the wire in the following text also refers to this type of connection) will bend during each detection process. If the wire is bent as a whole, the degree of bending is relatively low, and the service life will be longer. If the wire is bent partially, the degree of bending of the bent part is relatively large, and the service life will be relatively short.

[0055] In this solution, when the detection needles 502 on the detection meter holder 501 move together with the detection meter holder 501 to contact the corresponding conductive terminals on the electric energy meter under test, the connecting rod driving element will drive the parallelogram four-bar structure to extend left and right and contract up and down, so that the upper adjustment rod 701 and the lower adjustment rod 703 are relatively close to each other. When the detection needle 502 contacts the corresponding conductive terminal of the electric energy meter under test, the wire is close to a tensioned state and the degree of bending of the wire is very small.

[0056] When the detection table holder 501 is reset, the connecting rod driving element will drive the parallelogram four-bar structure to contract left and right and stretch up and down, so that the upper adjusting rod 701 and the lower adjusting rod 703 are relatively separated. The elastic rubber tube 702 on the upper adjusting rod 701 can "stretch out" the wires that pass around the upper adjusting rod 701 from above as a whole, and the elastic rubber tube 702 on the lower adjusting rod 703 can "stretch out" the wires that pass around the lower adjusting rod 703 from below as a whole (the elastic rubber tube 702 is in a compressed and deformed state), thereby ensuring that the wires tend to "bend as a whole" rather than "bend locally", thereby ensuring the service life of the wires.

[0057] Furthermore, existing technologies, whether the wires are directly wound around the terminal blocks or a section of wire is pressed onto the terminal blocks using a wire-pressing screw, carry the risk of loosening or loose connections. This is because loosening is inevitable due to the numerous vibrations and strains during operation. Once loosening or loose connections occur, the transmission of electrical signals becomes unstable (loose connections can cause problems such as abnormal heating, which in turn can cause changes in the current flowing through the wires). This can lead to inaccurate test results and affect the calibration of electricity meters. In this embodiment, an elastic rubber tube 702 is used. As previously mentioned, whenever the test table holder 501 is reset (i.e., before the next test), the upper adjustment rod 701 and the lower adjustment rod 703 are relatively separated. The elastic rubber tube 702 on the upper adjustment rod 701 can "stretch" the wires that are passing around the upper adjustment rod 701 from above, and the elastic rubber tube 702 on the lower adjustment rod 703 can "stretch" the wires that are passing around the lower adjustment rod 703 from below (the elastic rubber tube 702 is in a compressed and deformed state). The wires are pressed against the elastic rubber tube 702. In this way, if there is any looseness between the wires and the terminal, the wires will be pressed away from the terminal by the elastic rubber tube 702.

[0058] This way, during testing, some signal values ​​will be zero. Consecutive zero readings indicate a loose wire. While a loose connection might indicate a signal value (not zero), the reading might not be accurate, potentially resulting in a pass result despite a potential failure. However, a continuous zero reading suggests a significant failure, making it unlikely that the meter is defective. This solution automatically checks for loose connections before each test.

[0059] Furthermore, when all wires are in the state of compressing the elastic rubber sleeve 702, if the "no cross" requirement is met, that is, no two wires passing around the upper adjustment rod 701 from above have their projections cross, and no two wires passing around the lower adjustment rod 703 from below and above have their projections cross, then wireless skin-free wires can be used. The advantage of wired skin-free wires is their insulation, preventing them from conducting electricity even when they come into contact. However, during continuous, high-volume testing, heat generation can become a serious issue. In the present invention, once the "no cross" requirement is met, bare wires (wireless skin-free wires) can be used for wiring. This improves heat dissipation and prevents heat buildup in the wires, which can affect testing accuracy and results.

[0060] It should be noted that in this solution, when the operator removes the current meter support end structure, he should first remove the connection between the detection pin terminal 503 and the corresponding front connection terminal 601, and then replace it with a new meter support end structure corresponding to the electric energy meter being tested.

[0061] The fixed guide plate 7 is provided with an upper vertical slide groove 8a, a lower vertical slide groove 8b, a front horizontal slide groove 8c and a rear horizontal slide groove 8d, and the side fixed seat 401 is provided with a vertical slide groove. In the corresponding fixed guide plate 7 and the parallelogram four-bar structure: the first and second hinge shafts 805 slide in cooperation with the upper vertical slide groove 8a, the third and fourth hinge shafts 807 slide in cooperation with the lower vertical slide groove 8b, the second and third hinge shafts 806 slide in cooperation with the front horizontal slide groove 8c, and the first and fourth hinge shafts 808 slide in cooperation with the rear horizontal slide groove 8d.

[0062] Each slide groove is used to guide each hinge shaft. In this embodiment, Figure 5 As shown, in a fixed guide plate 7, the upper vertical slide groove 8a and the lower vertical slide groove 8b are directly opened, which is convenient for production and manufacturing, and the guiding effect is actually the same.

[0063] The upper adjustment rod 701 includes an upper left rod 701.1 coaxially connected to one of the one-two hinge shafts 805, an upper right rod 701.2 coaxially connected to the other one-two hinge shaft 805, an upper left sleeve 701.3 slidably connected to the upper left rod 701.1, and an upper right sleeve 701.4 slidably connected to the upper right rod 701.2. The upper left sleeve 701.3 is clamped with the upper right sleeve 701.4. A left rubber sleeve 702.1 is provided on the upper left sleeve 701.3, and a right rubber sleeve 702.2 is provided on the upper right sleeve 701.4. The right rubber sleeve 702.2 on the upper left sleeve 701.3 and the right rubber sleeve 702.2 on the upper right sleeve 701.4 together constitute an elastic rubber sleeve 702 sleeved on the upper adjustment rod 701. ; The lower adjusting rod 703 includes a lower left rod 703.1 coaxially connected to a 34-hinge shaft 807, a lower right rod 703.2 coaxially connected to another 34-hinge shaft 807, a lower left sleeve 703.3 slidingly connected to the lower left rod 703.1 and a lower right sleeve 703.4 slidingly connected to the lower right rod 703.2, the lower left sleeve 703.3 and the lower right sleeve 703.4 are clamped together, a left rubber sleeve 702.1 is provided on the lower left sleeve 703.3, and a right rubber sleeve 702.2 is provided on the lower right sleeve 703.4. The right rubber sleeve 702.2 on the lower left sleeve 703.3 and the right rubber sleeve 702.2 on the lower right sleeve 703.4 together constitute an elastic rubber tube 702 sleeved on the lower adjusting rod 703.

[0064] In this solution, the connection between the detection pin terminal 503 and the corresponding front connection terminal 601 can be pre-connected. When the meter support end structure needs to be replaced, it is only necessary to allow the power element of the electric measuring end to drive the electric measuring end crimping plate 2 to move, so that the crimping module pin 3 and the corresponding electric connection socket 6 are separated. Then the operator separates the upper left sleeve 701.3 from the upper right sleeve 701.4, and the lower left sleeve 703.3 from the lower right sleeve 703.4 (an upper space is formed between the upper left sleeve 701.3 and the upper right sleeve 701.4, and a lower space is formed between the lower left sleeve 703.3 and the lower right sleeve 703.4), and then the existing meter support end structure can be directly removed (the connection between the detection pin terminal 503 and the corresponding front connection terminal 601 is directly separated from the lower space and the upper space), and replaced. Install the new meter support structure (with the connection between the test pin terminal 503 and the corresponding front terminal 601 already established, and the connection passes directly through the upper and lower spaces). Then, snap the upper left sleeve 701.3 into the upper right sleeve 701.4, and snap the lower left sleeve 703.3 into the lower right sleeve 703.4. During this snap connection, allow the wires connected to the upper row of terminals to pass over the upper adjustment rod 701 from above, and allow the wires connected to the lower row of terminals to pass over the lower adjustment rod 703 from below. This solution significantly improves replacement efficiency, further enhancing overall inspection efficiency.

[0065] Notice: Figure 1 、 Figure 3 From the perspective, the upper left sleeve 701.3 is separated from the upper right sleeve 701.4, forming an upper space therebetween, and the lower left sleeve 703.3 is separated from the lower right sleeve 703.4, forming a lower space therebetween. Figure 4 From the perspective, the upper left sleeve 701.3 is clamped with the upper right sleeve 701.4, the left rubber sleeve 702.1 on the upper left sleeve 701.3 and the right rubber sleeve 702.2 on the upper right sleeve 701.4 together constitute an elastic rubber tube 702 mounted on the upper adjusting rod 701, the lower left sleeve 703.3 is clamped with the lower right sleeve 703.4, the left rubber sleeve 702.1 on the lower left sleeve 703.3 and the right rubber sleeve 702.2 on the lower right sleeve 703.4 together constitute an elastic rubber tube 702 mounted on the lower adjusting rod 703.

[0066] The connecting rod driving element is two four-link driving cylinders 704 corresponding to the three-fourth hinge shaft 807 one by one. In the corresponding three-fourth hinge shaft 807 and four-link driving cylinder 704: the cylinder rod of the four-link driving cylinder 704 is provided with a ring 705 which is sleeved outside the three-fourth hinge shaft 807, and the three-fourth hinge shaft 807 rotates in conjunction with the ring 705.

[0067] The electric measuring end power element includes an electric measuring end driving cylinder and an electric measuring end floating joint. The cylinder body of the electric measuring end driving cylinder is set on the main frame 1, and the cylinder rod of the electric measuring end driving cylinder is connected to the electric measuring end crimping plate 2 through the electric measuring end floating joint. The meter support end power element includes a meter support end driving cylinder and a meter support end floating joint. The cylinder body of the meter support end driving cylinder is set on the meter support end bottom plate 4, and the cylinder rod of the meter support end driving cylinder is connected to the detection meter support 501 through the meter support end floating joint.

[0068] The main frame 1 is provided with two parallel linear guide rails 101 , and the linear guide rails 101 are provided with sliders 102 that cooperate with the linear guide rails 101 . The sliders 102 slide horizontally and are fixed to the bottom of the electrical measuring end crimping plate 2 .

[0069] The linear guide rail 101 plays a guiding role. The cooperation between the slider 102 and the linear guide rail 101 can ensure the stability of the electrical measuring end crimping plate 2 during movement and the stability of the adapter plug-in module and the electrical sockets 6 during plugging.

[0070] The embodiments of the present invention are described in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core ideas. At the same time, for those skilled in the art, according to the ideas of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A module meter holder quick-change compatible electric energy meter calibration device, characterized in that: It includes main frame, electric measuring end structure and meter support end structure; The electric measuring end structure includes an electric measuring end crimping plate that can move horizontally relative to the main frame, a plurality of crimping module pins arranged on the electric measuring end crimping plate, and an electric measuring end power element for driving the electric measuring end crimping plate to move. The electric measuring end crimping plate is provided with a protective plate, and the rear end of the crimping module pins is provided with a crimping module rear terminal; The meter support end structure includes a meter support end bottom plate detachably connected to the main frame, a meter support end adapter plate provided on the meter support end bottom plate, an adapter plug-in module provided on the meter support end adapter plate, a detection meter support movable relative to the meter support end bottom plate, and a meter support end power element for driving the detection meter support to move; The detection meter support is provided with a plurality of detection pins for contacting the terminals of the electric energy meter, and the detection pins are provided with detection pin wiring terminals. The adapter plug-in module includes a plurality of electrical connection sockets corresponding to the crimping module pins one by one, and the front end of the electrical connection socket is provided with an electrical connection front wiring terminal for wiring with the detection pin wiring terminals. After the crimping module pins are plugged into the corresponding electrical connection sockets, each detection pin wiring terminal and each electrical connection front wiring terminal are all located below the guard plate; A portion of the front wiring terminals of the electric connection are sequentially arranged along the length direction of the adapter plate at the meter support end and together constitute an upper row of wiring terminals, and the remaining front wiring terminals of the electric connection are sequentially arranged along the length direction of the adapter plate at the meter support end and together constitute a lower row of wiring terminals, and the upper row of wiring terminals are located above the lower row of wiring terminals; It also includes a line adjustment mechanism, a clearance opening for avoiding the line adjustment mechanism is provided on the bottom plate of the table support end, and the line adjustment mechanism includes two fixed guide plates fixed to the main frame, two parallelogram four-bar linkage structures corresponding to the fixed guide plates, and a linkage driving element for driving the parallelogram four-bar linkage structure; In the corresponding fixed guide plate and parallelogram four-bar linkage structure: the parallelogram four-bar linkage structure includes a first upper rod, a second upper rod, a third lower rod and a fourth lower rod, the first upper rod and the second upper rod are hinged via a 12-hinged axis, the second upper rod and the third lower rod are hinged via a 23-hinged axis, the third lower rod and the fourth lower rod are hinged via a 34-hinged axis, the fourth lower rod and the first upper rod are hinged via a 14-hinged axis, and the 12-hinged axis, the 23-hinged axis, the 34-hinged axis and the 14-hinged axis are all slidably connected to the fixed guide plate; The sliding directions of the first and second hinge shafts and the third and fourth hinge shafts are both vertical, and the sliding directions of the second and third hinge shafts and the first and fourth hinge shafts are both horizontal. An upper adjusting rod is coaxially connected to each of the first and second hinge shafts, and an elastic rubber tube is sleeved on the upper adjusting rod. A lower adjusting rod is coaxially connected to each of the third and fourth hinge shafts, and an elastic rubber tube is sleeved on the lower adjusting rod.

2. The module meter holder quick-change compatible electric energy meter calibration device according to claim 1, characterized in that: Two edge fixing seats are provided on the bottom plate of the table holder end. The two edge fixing seats are respectively located on the opposite sides of the crimping detection table holder and the two edge fixing seats are respectively located on the opposite sides of any electrical socket.

3. The module meter holder quick-change compatible electric energy meter calibration device according to claim 1, characterized in that: The transfer plug-in module adopts an aviation socket.

4. The module meter holder quick-change compatible electric energy meter calibration device according to claim 1, characterized in that: The fixed guide plate is provided with an upper vertical slide groove, a lower vertical slide groove, a front horizontal slide groove and a rear horizontal slide groove, and the side fixed seat is provided with a vertical slide groove. In the corresponding fixed guide plate and the parallelogram four-bar structure: the first and second hinge shafts slide in cooperation with the upper vertical slide groove, the third and fourth hinge shafts slide in cooperation with the lower vertical slide groove, the second and third hinge shafts slide in cooperation with the front horizontal slide groove, and the first and fourth hinge shafts slide in cooperation with the rear horizontal slide groove.

5. The module meter holder quick-change compatible electric energy meter calibration device according to claim 1, characterized in that: The upper adjusting rod comprises an upper left rod coaxially connected to a one-two hinge shaft, an upper right rod coaxially connected to another one-two hinge shaft, an upper left sleeve slidably connected to the upper left rod, and an upper right sleeve slidably connected to the upper right rod, the upper left sleeve is clamped with the upper right sleeve, a left rubber sleeve is provided on the upper left sleeve, and a right rubber sleeve is provided on the upper right sleeve, and the left rubber sleeve on the upper left sleeve and the right rubber sleeve on the upper right sleeve together constitute an elastic rubber cylinder sleeved on the upper adjusting rod; the lower adjusting rod comprises a lower left rod coaxially connected to a three-four hinge shaft, a lower right rod coaxially connected to the other three-four hinge shaft, a lower left sleeve slidably connected to the lower left rod, and a lower right sleeve slidably connected to the lower right rod, the lower left sleeve is clamped with the lower right sleeve, the lower left sleeve is provided with a left rubber sleeve, the lower right sleeve is provided with a right rubber sleeve, and the left rubber sleeve on the lower left sleeve and the right rubber sleeve on the lower right sleeve together constitute an elastic rubber cylinder sleeved on the lower adjusting rod.

6. The module meter holder quick-change compatible electric energy meter calibration device according to claim 1, characterized in that: The connecting rod driving element is two four-link driving cylinders corresponding to the third and fourth hinge shafts one by one. In the corresponding third and fourth hinge shafts and four-link driving cylinders: the cylinder rod of the four-link driving cylinder is provided with a ring that is sleeved outside the third and fourth hinge shafts, and the third and fourth hinge shafts rotate in cooperation with the ring.

7. A module meter holder quick-change compatible electric energy meter calibration device according to claim 1, 2 or 3, characterized in that: The electric measuring end power element includes an electric measuring end driving cylinder and an electric measuring end floating joint. The cylinder body of the electric measuring end driving cylinder is set on the main frame, and the cylinder rod of the electric measuring end driving cylinder is connected to the electric measuring end crimping plate through the electric measuring end floating joint. The meter support end power element includes a meter support end driving cylinder and a meter support end floating joint. The cylinder body of the meter support end driving cylinder is set on the meter support end bottom plate, and the cylinder rod of the meter support end driving cylinder is connected to the detection meter support through the meter support end floating joint.

8. A module meter holder quick-change compatible electric energy meter calibration device according to claim 1, 2 or 3, characterized in that: The main frame is provided with two parallel linear guide rails, the linear guide rails are provided with sliders matched with the linear guide rails, the sliding direction of the sliders is horizontal, and the sliders are fixed to the bottom of the electrical measuring end crimping plate.

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