CN201773180U - Pneumatic gauge stand for three-phase electric energy meter calibration equipment - Google Patents
Pneumatic gauge stand for three-phase electric energy meter calibration equipment Download PDFInfo
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- CN201773180U CN201773180U CN201020258746XU CN201020258746U CN201773180U CN 201773180 U CN201773180 U CN 201773180U CN 201020258746X U CN201020258746X U CN 201020258746XU CN 201020258746 U CN201020258746 U CN 201020258746U CN 201773180 U CN201773180 U CN 201773180U
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Abstract
The utility model provides a pneumatic gauge stand for three-phase electric energy meter calibration equipment, which has simple structure, reliability in use and capability of fast switching. The gauge stand adopts a pneumatic control mode and controls the on and off of a pneumatic source by a pneumatic reversing valve, so that binding posts on the gauge stand can be fast and automatically switched to different positions and states so as to be adaptive to wiring requirements of a mutual inductor switching-on three-phase electric energy meter and a directly switching-on three-phase electric energy meter, thus meeting the need of automatic switching when automatic electric energy meter calibration equipment calibrates different electric energy meters.
Description
Technical field
The utility model relates to the electric energy meter calibration field, relates in particular to the three-phase electric energy meter meter adapting-seat.
Background technology
In order to advance the development of intelligent electric meter, nearly 2 years, State Grid Corporation of China has formulated a series of standards about electric energy meter, wherein physical dimension has also been done unified processing, this just lays a good foundation for the automatic calibration of electric energy meter, can predict, automatic calibration equipment will have the very big market space in the coming years.Yet, realize the automatic calibration of electric energy meter, must realize that electric energy meter electric current and voltage and signal terminal dock with the fast automatic of checkout equipment, therefore, meter adapting-seat will be the requisite parts of electric energy meter automatic calibration system.
The single-phase electric energy meter number of terminals of various models is identical with position dimension in the national grid standard, and therefore, single-phase table meter adapting-seat is simple in structure, and design is got up than being easier to.Yet, three-phase electric energy meter is cumbersome, because the number of terminals of mutual inductor access type and direct access type three-phase electric energy meter is different, and position dimension is also different, therefore, allow a cover checkout equipment can examine and determine mutual inductor access type three-phase electric energy meter, also can examine and determine direct access type three-phase electric energy meter, just must realize the automatic switchover of meter adapting-seat.
Be used for the three-phase meter adapting-seat of intelligent electric meter in the market, or be used for the mutual inductor access type, or be used for direct access type, the two can not be general.In this case, have only two kinds of selection schemes during design automation streamline verification system, the first, do two cover verification systems and be respectively applied for the detection of mutual inductor access type three-phase electric energy meter and the directly detection of access type three-phase electric energy meter, can cause the significant wastage of resource like this; The second, do a cover verification system, change different meter adapting-seats when examining and determine different ammeters, because replacing speed is very slow, can influence efficient greatly, this causes great waste equally.
Therefore, economize on resources and raise the efficiency, must design a kind of three-phase kilowatt-hour meter meter adapting-seat that can automatically switch, when examining and determine different three-phase kilowatt-hour meters, can rapid and reliablely switch to the wiring state that this kind ammeter needs.
The utility model content
The purpose of this utility model be to provide a kind of simple in structure, use three-phase electric energy meter meter adapting-seat reliable, that can switch fast, this meter adapting-seat can be fast automatic switch to different states, to adapt to mutual inductor access type three-phase kilowatt-hour meter and the directly wiring requirement of access type three-phase kilowatt-hour meter.
A kind of gas control meter adapting-seat that is used for the three-phase electric energy meter calibration equipment, which is provided with a plurality of cylinders that are used for adjusting connection terminal position and state, can adjust each connection terminal position and state by pressurized air, comprise mounting base and be installed in electric current and voltage terminal assemblies on this mounting base, ground terminal assemblies and auxiliary current terminal assemblies, wherein the electric current and voltage terminal assemblies comprises three electric current and voltage terminal group that are connected in series by the axis of guide, and the axis of guide and mounting base are fixedly connected, it is characterized in that: this meter adapting-seat also comprises lateral cylinder, and the cylinder barrel of lateral cylinder and piston are located at respectively and are used to promote each electric current and voltage terminal group on mounting base and the electric current and voltage terminal assemblies; Each electric current and voltage terminal group all is provided with electric current and voltage terminal group back-moving spring and electric current and voltage terminal group stroke limit spare, all can horizontally slip on the axis of guide under the effect of electric current and voltage terminal group back-moving spring and lateral cylinder, the stroke of its slip then is subjected to the qualification of electric current and voltage terminal group stroke limit spare; Each electric current and voltage terminal group is provided with two current terminals and a voltage terminal, and and this voltage terminal the voltage terminal cylinder and the voltage terminal back-moving spring that are associated; Ground terminal cylinder and ground terminal back-moving spring that ground terminal assemblies is provided with a ground terminal and is associated with this ground terminal; Auxiliary current terminal cylinder and auxiliary current terminal back-moving spring that the auxiliary current terminal assemblies is provided with two auxiliary current terminals and is associated with this auxiliary current terminal.
Meter adapting-seat is provided with a plurality of cylinders, and each cylinder all is communicated with by air operated reversing valve and source of the gas, and cylinder piston rod stretches out, and related with it connection terminal is adjusted to suitable position.
As a kind of preferred version, gas connection between the air cavity of each cylinder on the meter adapting-seat, and whole gauge stand is externally only established a gas source interface, each cylinder all stretches out during ventilation, all withdraws when dying.
Gas on the preferred meter adapting-seat between each cylinder air cavity is communicated with and is to realize by the aperture of hollow air feed mandrel with holes and each terminal group inside.
According to the utility model, lateral cylinder is arranged between the right side and mounting base of electric current and voltage terminal assemblies, and electric current and voltage terminal group back-moving spring then is separately positioned between mounting base and each the electric current and voltage terminal group.
Description of drawings
Below in conjunction with accompanying drawing the utility model is elaborated, in the accompanying drawings:
Fig. 1 is the mutual inductor access type three-phase electric energy meter terminal row synoptic diagram of state net company regulation;
Fig. 2 is the direct access type three-phase electric energy meter terminal row synoptic diagram of state net company regulation;
Fig. 3 is the utility model meter adapting-seat and orientation synoptic diagram;
Fig. 4 is gas control meter adapting-seat schematic three dimensional views according to the preferred embodiment of the invention;
Fig. 5 is that each cylinder gas of the preferred embodiment of the present invention is communicated with form and back-moving spring synoptic diagram;
Fig. 6 is the axis of guide, stroke limit spare and each the terminal group synoptic diagram according to the embodiment of the invention;
Fig. 7 is signal of electric current and voltage terminal group and current terminal structural representation;
Fig. 8 is the synoptic diagram of voltage terminal front and back slippage under its active cylinder and action of reset spring;
Fig. 9 is the synoptic diagram of auxiliary current terminal slippage under its active cylinder and action of reset spring;
Figure 10 is ground terminal synoptic diagram of slippage up and down under its active cylinder and action of reset spring;
Embodiment
State for convenience, regulation is front and back along the meter adapting-seat probe direction, about level and Vertrical probe direction be, vertically and about the Vertrical probe direction is, specifically referring to azimuth direction shown in Figure 3.
Referring to Fig. 4, Fig. 5, Fig. 6, these three the gas control meter adapting-seats that are used for the three-phase electric energy meter calibration equipment that illustrate according to the utility model preferred embodiment, this meter adapting-seat comprises mounting base 1 and is installed in electric current and voltage terminal assemblies 2, ground terminal assemblies 3, auxiliary current terminal assemblies 4 on this mounting base 1, wherein electric current and voltage terminal assemblies 2 comprises three electric current and voltage terminal group by the axis of guide 5 coupled in series, and the axis of guide 5 is fixedly connected with mounting base 1; Direction along the axis of guide 5 between electric current and voltage terminal assemblies 2 and mounting base 1 is that left and right directions is provided with a lateral cylinder 6; Each electric current and voltage terminal group of electric current and voltage terminal assemblies 2 all is provided with associated electric current and voltage terminal group back-moving spring 7 and electric current and voltage terminal group stroke limit spare 8, and each electric current and voltage terminal group all can horizontally slip at the effect lower edge axis of guide 5 of lateral cylinder 6 and its back-moving spring 7, and the stroke of its slip then is subjected to the qualification of electric current and voltage terminal group stroke limit spare 8.
As shown in Figure 7, each electric current and voltage terminal group comprises two current terminals 9 and a voltage terminal 10, and voltage terminal cylinder 11 that is associated with this voltage terminal and voltage terminal back-moving spring 12, slippage before and after voltage terminal 10 can be done under the effect of cylinder 11 and back-moving spring 12, as shown in Figure 8.Voltage terminal 10 adopts common probe, the structure of current terminal 9 is shown in the right figure of Fig. 7, comprise contact 24, binding post 25, holddown spring 26 and insulation cover for seat 27, when this structure guaranteed that meter adapting-seat docks with ammeter, the snap-in force of current terminal was provided by holddown spring 26.
Referring to Fig. 9, the structure and the voltage terminal of auxiliary current terminal assemblies 4 are similar, comprise auxiliary current terminal cylinder 17 and auxiliary current terminal back-moving spring 18, and two auxiliary current terminal probes 16 that can move forward and backward under this cylinder and spring action.
Referring to Figure 10, ground terminal assemblies 3 comprises guide pillar 28, ground terminal back-moving spring 15, ground terminal cylinder 14 and the ground terminal probe 13 that can move under this cylinder and the action of reset spring.
Referring to Fig. 5, Fig. 8, Fig. 9, Figure 10, voltage terminal cylinder, auxiliary current terminal cylinder, ground terminal cylinder are respectively equipped with aperture 21,22,23 air intake openings as this cylinder.As a kind of preferred version, comprise that each cylinder air inlet of lateral cylinder 6 is connected together, whole meter adapting-seat is externally only established an air intake opening 19, and all cylinders stretch out during ventilation, and all cylinders are withdrawn under corresponding action of reset spring when dying.
Embodiment as shown in Figure 5, the connection of each cylinder air cavity realizes by an air feed mandrel 20 and inner aperture 21,22,23, gas source interface 19 connects the external control source of the gas, aperture 21 is with the pressurized air cylinder air cavity of pressure side of switching on, aperture 22 is with the logical auxiliary current terminal cylinder air cavity of pressurized air, and aperture 23 connects ground terminal cylinder air cavity with pressurized air.
Should be pointed out that the gas between each cylinder air cavity is communicated with and can also realizes by alternate manner, for example, can be connected each air cavity with flexible pipe and joint.
Get back to Fig. 5, the embodiment shown in the figure, lateral cylinder 6 is located at the right side of electric current and voltage terminal assemblies 2, and respectively establishes a back-moving spring between mounting base 1 and each electric current and voltage terminal group.It is to be noted, this mode is not unique implementation method, as another embodiment, also can between electric current and voltage terminal assemblies 2 left sides and each electric current and voltage terminal group, a lateral cylinder be installed respectively, and it is just passable to establish a back-moving spring between electric current and voltage terminal assemblies 2 right sides and mounting base 1.
The automatic meter adapting-seat working method of three-phase electric energy meter of the present utility model is as follows:
Meter adapting-seat of the present utility model is mounted on the electric energy meter automatic calibration equipment in order to finish the terminal fast-wiring of three-phase electric energy meter, the current terminal voltage terminal of meter adapting-seat and other auxiliary terminal etc. are by electric wire and testing apparatus electric connection, when calibration equipment need dock with electric energy meter, meter adapting-seat whole reach under the cylinder of calibration equipment promotes, meter adapting-seat current terminal contacts and each terminal of each probe and electric energy meter contacted before this, the calibration equipment cylinder continues to promote the meter adapting-seat reach, the current terminal holddown spring of meter adapting-seat tightly is pressed in current terminal contacts 24 on the electric energy meter electric current terminal, and other terminal probe also can tightly be pressed on other terminal of electric energy meter on the meter adapting-seat, thereby realizes the electric connection between testing apparatus and energy meter terminal.
Switching when meter adapting-seat of the present utility model detects mutual inductor access type ammeter and direct access type ammeter is finished when meter adapting-seat does not contact with electric energy meter, be that calibration equipment begins meter adapting-seat to be switched to one of two states before the calibrating, its switching is that the source of the gas break-make by the gas source interface 19 of air operated reversing valve control meter adapting-seat realizes.
When needs detected mutual inductor access type ammeter, air operated reversing valve was connected meter adapting-seat gas source interface and pressurized air, inner each the cylinder action of meter adapting-seat, and lateral cylinder 6 is pushed each electric current and voltage terminal group to left side, and each terminal is finished the displacement of left and right directions on it; Voltage terminal cylinder 11 and 17 actions of auxiliary current terminal cylinder with the probe reach of voltage terminal and auxiliary current terminal, are finished the front and back displacement of two kinds of terminals; 14 actions of ground terminal cylinder upwards promote a segment distance with ground terminal, finish shift motion up and down; This moment, each terminal was all adjusted to and the corresponding position of mutual inductor access type ammeter terminal, and all terminals on the meter adapting-seat all need to be connected with ammeter.
When needs detect direct access type ammeter, air operated reversing valve disconnects meter adapting-seat gas source interface and pressurized air, and gas source interface opened be in exhaust condition, each electric current and voltage terminal group back-moving spring 7 is pushed the electric current and voltage terminal group to right side, but because the position-limiting action of electric current and voltage terminal stroke limit spare 8, the distance that each terminal group can only move right and set promptly moves to the position that adapts with direct access type ammeter, and the left and right sidesing shifting of terminal is finished; The voltage terminal back-moving spring 12 of meter adapting-seat and auxiliary current terminal back-moving spring 18 promote voltage terminal and auxiliary current terminal backward, displacement before and after finishing; Ground terminal back-moving spring 15 moves down a segment distance with ground terminal, finishes displacement up and down; So far, each terminal is moved to position and the state that adapts with direct access type ammeter in the effect of back-moving spring.Meter adapting-seat has only current terminal to contact with electric energy meter with ground terminal when docking with direct access type ammeter, and voltage terminal does not then contact electric energy meter with the auxiliary current terminal, promptly is in idle state.
Claims (4)
1. gas control meter adapting-seat that is used for the three-phase electric energy meter calibration equipment, comprise mounting base (1) and be installed in electric current and voltage terminal assemblies (2) on this mounting base, ground terminal assemblies (3) and auxiliary current terminal assemblies (4), wherein electric current and voltage terminal assemblies (2) comprises three electric current and voltage terminal group that are connected in series by the axis of guide (5), and the axis of guide (5) and mounting base (1) are fixedly connected, it is characterized in that: this meter adapting-seat also comprises lateral cylinder (6), and the cylinder barrel of lateral cylinder (6) and piston are located at respectively on mounting base (1) and the electric current and voltage terminal assemblies (2); Each electric current and voltage terminal group all is provided with electric current and voltage terminal group back-moving spring (7) and electric current and voltage terminal group stroke limit spare (8), each electric current and voltage terminal group can both horizontally slip on the axis of guide (5) under the effect of electric current and voltage terminal group back-moving spring (7) and lateral cylinder (6), and the stroke of its slip then is subjected to the qualification of electric current and voltage terminal group stroke limit spare (8); Each electric current and voltage terminal group is provided with two current terminals (9) and a voltage terminal (10), and and this voltage terminal (10) the voltage terminal cylinder (11) and the voltage terminal back-moving spring (12) that are associated; Ground terminal cylinder (14) and ground terminal back-moving spring (15) that ground terminal assemblies (3) is provided with a ground terminal (13) and is associated with this ground terminal; Auxiliary current terminal cylinder (17) and auxiliary current terminal back-moving spring (18) that auxiliary current terminal assemblies (4) is provided with two auxiliary current terminals (16) and is associated with this auxiliary current terminal.
2. the gas control meter adapting-seat that is used for the three-phase electric energy meter calibration equipment according to claim 1, it is characterized in that: gas connection between the air cavity of each cylinder on the meter adapting-seat, whole gauge stand is externally only established a gas source interface (19), and each cylinder all stretches out during ventilation, all withdrawals when dying.
3. the gas control meter adapting-seat that is used for the three-phase electric energy meter calibration equipment according to claim 2 is characterized in that: it is to realize by hollow air feed mandrel (20) with holes and the aperture (21) (22) (23) of each terminal group inside that gas between each the cylinder air cavity on the meter adapting-seat is communicated with.
4. the gas control meter adapting-seat that is used for the three-phase electric energy meter calibration equipment according to claim 1, it is characterized in that: lateral cylinder (6) is arranged between electric current and voltage terminal assemblies (2) right side and the mounting base (1), and electric current and voltage terminal group back-moving spring (7) then is separately positioned between mounting base (1) and each the electric current and voltage terminal group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020258746XU CN201773180U (en) | 2010-07-15 | 2010-07-15 | Pneumatic gauge stand for three-phase electric energy meter calibration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020258746XU CN201773180U (en) | 2010-07-15 | 2010-07-15 | Pneumatic gauge stand for three-phase electric energy meter calibration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201773180U true CN201773180U (en) | 2011-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020258746XU Expired - Fee Related CN201773180U (en) | 2010-07-15 | 2010-07-15 | Pneumatic gauge stand for three-phase electric energy meter calibration equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN201773180U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802460A (en) * | 2017-05-04 | 2018-11-13 | 郑州三晖电气股份有限公司 | A kind of Campatible electric energy meter meter adapting-seat and realize compatible method |
| CN108896950A (en) * | 2018-07-18 | 2018-11-27 | 国网四川省电力公司电力科学研究院 | A kind of device that program control type three-phase combination transformer calibrating secondary connection automatically switches |
-
2010
- 2010-07-15 CN CN201020258746XU patent/CN201773180U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108802460A (en) * | 2017-05-04 | 2018-11-13 | 郑州三晖电气股份有限公司 | A kind of Campatible electric energy meter meter adapting-seat and realize compatible method |
| CN108802460B (en) * | 2017-05-04 | 2024-01-30 | 郑州三晖电气股份有限公司 | Compatible electric energy meter base and method for realizing compatibility |
| CN108896950A (en) * | 2018-07-18 | 2018-11-27 | 国网四川省电力公司电力科学研究院 | A kind of device that program control type three-phase combination transformer calibrating secondary connection automatically switches |
| CN108896950B (en) * | 2018-07-18 | 2020-01-07 | 国网四川省电力公司电力科学研究院 | Automatic switching device for verifying secondary wiring of program-controlled three-phase combined transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110323 Termination date: 20120715 |