Lossless meter replacing instrument

Abstract

The utility model relates to the technical field of electric energy meter replacing equipment, in particular to a lossless meter replacing instrument which comprises a bottom plate, a wire holder and an adapter, the wire holder is arranged on the bottom plate, a plurality of slots are formed in the two adjacent sides of the wire holder, conducting strips used for being connected with a circuit are arranged in the slots, and the adapter comprises an adapter strip. A plurality of connector lugs are arranged on one side of the adapter strip in the length direction of the edge of the adapter strip, a plurality of adapter plugs are arranged on the other side of the adapter strip, the adapter plugs correspond to the slots one to one, the adapter plugs are matched with the slots in an inserted mode, the adapter plugs are used for making contact with the conducting strips, and the connector lugs correspond to the adapter plugs one to one and are electrically connected with the adapter plugs. The connector lug is used for being electrically connected with a wiring port of the electric energy meter, and a fixing piece is arranged between the adapter and the electric energy meter. The device has the effect of replacing the electric energy meter without electric energy loss.

Description

Technical Field

[0001] The present application relates to the technical field of electric energy meter replacement equipment, and in particular to a lossless meter replacement instrument. Background Art

[0002] An electric energy meter is an instrument used to measure electrical energy. It is also known as a watt-hour meter, heat meter, or kilowatt-hour meter. It is an instrument used to measure electrical energy and is currently a mandatory energy metering device for legal trade settlements. Regulations require that electric energy meters be rotated, and periodic calibration is also required for large users and gateway meters.

[0003] Related technology discloses an electric energy meter, referring to Figure 1 , including a watch case 01, a display 02 and a wiring port 03. The watch case 01 is provided with a mounting ear 04, and a transparent wiring protective shell 05 is bolted to the wiring port 03.

[0004] With the rapid development of the national economy and the growing size of the power grid, the periodic rotation and on-site periodic inspection of electricity meters have become large-scale and institutionalized work. The current periodic rotation method for mutual inductance three-phase electricity meters is to temporarily disconnect the voltage circuit and short-circuit the current circuit of the operating electricity meter through a joint junction box without affecting the normal power consumption of users, thereby creating working conditions for safe replacement of the electricity meter. The old electricity meter is then removed from the meter position and replaced with a new one. The wires are then reconnected to the new electricity meter and the circuit is connected to achieve the meter replacement effect.

[0005] For small groups of households using electricity, the electricity meter is usually replaced by a short-term power outage. The meter can also be replaced in a short time by a short-circuit current loop. Since there are few household electrical appliances, a large amount of electricity loss will not be caused in a short time. However, for large-scale electricity-consuming places such as factories, the power cannot be cut off at will during factory production. Therefore, the electricity meter is usually replaced by a short-circuit current loop. Due to the high power of the electrical equipment in the factory, a large amount of electricity loss will be caused in a short time, and the lost electricity cannot be recorded. The traditional solution is to negotiate with factory users to estimate an approximate electricity consumption, but the negotiation is prone to cause negotiation conflicts and inconveniences with users, and there are shortcomings. Utility Model Content

[0006] In order to improve the problem of power loss and inability to record caused by replacing electricity meters in large power consumption sites, the present application provides a non-destructive meter replacement instrument.

[0007] The non-destructive meter replacement device provided in this application adopts the following technical solution:

[0008] A lossless meter replacement instrument includes a base plate, a terminal block and an adapter. The terminal block is arranged on the base plate. Multiple slots are opened on adjacent two sides of the terminal block. Conductive sheets for connecting to the circuit are provided in the multiple slots. The adapter includes an adapter bar. Multiple terminal heads are provided on one side of the adapter bar along the length direction of its edge, and multiple adapter plugs are provided on the other side. The adapter plugs correspond one-to-one with the slots, and the adapter plugs are plugged into the slots. The adapter plug is used to contact the conductive sheets, the terminal heads correspond one-to-one with the adapter plugs and are electrically connected. The terminal heads are used to be electrically connected to the wiring ports of the electric energy meter. A fixing part is provided between the adapter and the electric energy meter.

[0009] By adopting the above technical solution, the skilled worker electrically connects the terminal head on the adapter strip to the terminal port of the new electricity meter, then fixes the adapter strip on the new electricity meter through the fixing parts, and then inserts the adapter plug on the new electricity meter into the slot of the terminal block so that the adapter plug contacts the conductive sheet. At this time, the new electricity meter and the old electricity meter are in parallel, and the old electricity meter is also electrically connected to the terminal block by plugging the adapter. During the meter replacement process, the current usage changes in the new and old electricity meters in the same value, and then the skilled worker can unplug the old electricity meter, reducing the problem of current loss that cannot be recorded due to replacement of the electricity meter. In addition, there is no need to communicate or negotiate with the user when replacing the electricity meter, which reduces the possibility of conflicts with the user.

[0010] Optionally, the fixing member includes a connecting screw passing through the transfer bar, the transfer bar is provided with a fixing slot for the connecting screw to pass through, and the connecting screw is bolted to the electric energy meter.

[0011] By adopting the above technical solution, after the terminal head is electrically connected to the terminal port of the electricity meter, the skilled worker tightens the connecting screws, and the connecting screws fix the adapter strip on the electricity meter, thereby completing the process of assembling and fixing the adapter on the electricity meter.

[0012] Optionally, a plurality of mounting holes are provided on the base plate, and mounting screws are provided on the mounting holes.

[0013] By adopting the above technical solution, it is convenient for technical workers to fix the base plate at any position by installing screws, which is conducive to reducing the difficulty of installing the base plate.

[0014] Optionally, extension plates are provided on the bottom plate and on both sides of the wiring seat, and a protective cover is detachably provided on the extension plate, and the wiring protection shell presses the protective cover onto the case.

[0015] By adopting the above technical solution, skilled workers install and fix the protective cover on the extension plate through the wiring protective shell, so that the protective cover closes and shields the wiring port of the electricity meter, reducing the possibility of random wiring at the wiring port of the electricity meter.

[0016] Optionally, a limiting slot is provided on the protective cover, and a protrusion is provided on the wiring protection shell, and the protrusion is inserted into the limiting slot.

[0017] By adopting the above technical solution, technical workers insert the protrusions on the wiring protective shell into the limiting slots of the protective cover, and then tighten the screws on the wiring protective shell. The wiring protective shell presses the protective cover onto the meter case, thereby fixing the protective cover and at the same time allowing the protective cover to close the wiring port of the electricity meter.

[0018] Optionally, guide bars are provided on the bottom plate and on both sides of the wiring seat, and both sides of the electric energy meter are used to contact the guide bars.

[0019] By adopting the above technical solution, a skilled worker clamps the electricity meter between the two guide strips, and then pushes the electricity meter with force so that the adapter plug fixed on the electricity meter is plugged into the slot on the terminal block. The process is simple and convenient to operate, and there is no need for the skilled worker to align the adapter plug with the slot.

[0020] Optionally, an avoidance chamfer is provided between two sides of the slot on the wiring seat.

[0021] By adopting the above technical solution, the skilled worker first rotates the old electricity meter 90°. At this time, the old electricity meter is separated from the base plate, but the adapter plug on the old electricity meter is still electrically connected to the conductive sheet in the slot. Then the skilled worker installs the assembled new electricity meter on the terminal block through the guide bar. After the new electricity meter works stably, the skilled worker unplugs the old electricity meter. Finally, the skilled worker adjusts the position of the new electricity meter to complete the replacement process of the electricity meter. During this process, the avoidance chamfer reduces the impact on the rotation of the old electricity meter.

[0022] Optionally, a fixing ear is provided on the base plate, and a fixing screw is bolted to the fixing ear, and the fixing screw presses the mounting ear onto the fixing ear.

[0023] By adopting the above technical solution, after adjusting the position of the new electricity meter, the skilled worker tightens the fixing screws, and the fixing screws fix the electricity meter to the fixing ears of the base plate through the mounting ears, thereby reducing the possibility of the electricity meter accidentally falling off the base plate.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. The technician electrically connects the terminal head on the adapter strip to the terminal port of the new energy meter, and then fixes the adapter strip to the new energy meter through the fixing piece. Then, the adapter plug on the new energy meter is inserted into the slot of the terminal block so that the adapter plug contacts the conductive sheet. At this time, the new energy meter and the old energy meter are in parallel, and the old energy meter is also electrically connected to the terminal block by plugging the adapter. During the meter replacement process, the current usage changes to the same value on the new and old energy meters. Then the technician can unplug the old energy meter, reducing the problem of current loss and inability to record caused by replacing the energy meter. In addition, there is no need to communicate or negotiate with the user when replacing the energy meter, which reduces the possibility of conflicts with the user.

[0026] 2. The technician inserts the protrusion on the wiring protection shell into the limiting notch of the protection cover, and then tightens the screws on the wiring protection shell. The wiring protection shell presses the protection cover onto the meter case, thereby fixing the protection cover and making the protection cover seal the wiring port of the energy meter.

[0027] 3. The technician first rotates the old electricity meter 90°. At this time, the old electricity meter is separated from the base plate, but the adapter plug on the old electricity meter is still electrically connected to the conductive sheet in the slot. Then the technician installs the assembled new electricity meter on the terminal block through the guide bar. After the new electricity meter works stably, the technician unplugs the old electricity meter. Finally, the technician adjusts the position of the new electricity meter to complete the replacement process of the electricity meter. During this process, the avoidance chamfer reduces the impact on the rotation of the old electricity meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural diagram of background technology.

[0029] Figure 2 It is a structural diagram of an embodiment of the present application.

[0030] Figure 3 It is a structural diagram of the positional relationship among the adapter strip, terminal head and connecting screws in the embodiment of the present application.

[0031] Figure 4 This is a schematic diagram of the structure in which the adapter is installed on the watch case in an embodiment of the present application.

[0032] Figure 5 It is a structural diagram of the positional relationship between the protective cover and the card strip in an embodiment of the present application.

[0033] Figure 6 It is a structural diagram of the positional relationship among the protective cover, extension plate and terminal block in the embodiment of the present application.

[0034] Figure 7 It is a structural diagram of two electric energy meters connected in parallel in an embodiment of the present application.

[0035] Explanation of the accompanying symbols: 01, watch case; 02, display; 03, wiring port; 04, mounting ear; 05, wiring protective shell; 1, base plate; 2, wiring socket; 3, adapter; 31, adapter strip; 32, wiring head; 33, adapter plug; 34, fixing part; 341, connecting screw; 342, fixing slot; 4, slot; 5, conductive sheet; 6, mounting hole; 7, mounting screw; 8, extension plate; 9, protective cover; 10, limiting slot; 11, bump; 12, guide strip; 13, avoidance chamfer; 14, fixing ear; 15, fixing screw; 16, clamping strip. DETAILED DESCRIPTION

[0036] The following is combined with Figure 2-7 This application is described in further detail.

[0037] The embodiment of the present application discloses a non-destructive meter replacement instrument.

[0038] Reference Figure 2 A non-destructive meter replacement instrument includes a base plate 1, a terminal block 2 and an adapter 3. The base plate 1 is provided with a plurality of mounting holes 6, and the mounting holes 6 are provided with mounting screws 7. The mounting screws 7 pass through the mounting holes 6. The terminal block 2 is welded to the base plate 1. A plurality of slots 4 are provided on adjacent sides of the terminal block 2. The plurality of slots 4 are arranged along the length direction of the terminal block 2. Conductive sheets 5 for connecting to the circuit are arranged in the plurality of slots 4.

[0039] Reference Figure 2 、 Figure 3 and Figure 4 The adapter 3 includes an adapter strip 31. A plurality of wiring heads 32 are embedded on one side of the adapter strip 31 along the length direction of its edge, and a plurality of adapter plugs 33 are embedded on the other side. The adapter plugs 33 correspond one-to-one with the slots 4. The adapter plugs 33 are plugged into the slots 4. The adapter plugs 33 are used to contact the conductive sheet 5. The wiring heads 32 correspond one-to-one with the adapter plugs 33 and are electrically connected. The wiring heads 32 are used to be electrically connected to the wiring port 03 of the electric energy meter.

[0040] Reference Figure 3 and Figure 4 A fixing part 34 is arranged between the adapter 3 and the electric energy meter. The fixing part 34 includes a connecting screw 341 that is passed through the adapter bar 31. The adapter bar 31 is provided with a fixing slot 342 for the connecting screw 341 to pass through. The connecting screw 341 is bolted to the electric energy meter.

[0041] The skilled worker electrically connects the connection head 32 on the transfer bar 31 to the connection port 03 of the new electric energy meter, and then fixes the transfer bar 31 on the new electric energy meter by tightening the connection screws 341 .

[0042] Reference Figure 2 、 Figure 5 and Figure 6 An extension plate 8 is integrally formed on the bottom plate 1 and on both sides of the terminal block 2. A protective cover plate 9 is detachably arranged on the extension plate 8. A card strip 16 is integrally formed on both sides of the cover plate. The card strip 16 corresponds to and contacts the extension plate 8 one by one.

[0043] Reference Figure 4 、 Figure 5 and Figure 6 A limiting slot 10 is provided on the protective cover 9 , and a protrusion 11 is integrally formed on the wiring protective shell 05 . The protrusion 11 is inserted into the limiting slot 10 , and the wiring protective shell 05 presses the protective cover 9 onto the watch case 01 .

[0044] Reference Figure 2 、 Figure 6 and Figure 7 , guide strips 12 are integrally formed on the base plate 1 and on both sides of the terminal block 2. The two sides of the electric energy meter are used to contact the guide strips 12. An avoidance chamfer 13 is provided between the two sides of the slot 4 opened on the terminal block 2. A fixing ear 14 is integrally formed on the base plate 1, and a fixing screw 15 is bolted to the fixing ear 14. The fixing screw 15 presses the mounting ear 04 onto the fixing ear 14.

[0045] The technician then inserts the protective cover 9, loosens the fixing screws 15 on the old electricity meter, and then rotates the old electricity meter 90°. At this time, the old electricity meter is separated from the base plate 1, but the adapter plug 33 on the old electricity meter is still electrically connected to the conductive sheet 5 in the slot 4.

[0046] The technician places the new electricity meter between the two guide bars 12, and then pushes the new electricity meter with force so that the adapter plug 33 fixed on the new electricity meter is inserted into the slot 4 of the terminal block 2, so that the adapter plug 33 contacts the conductive sheet 5 in the slot 4. At this time, the new electricity meter and the old electricity meter are in parallel.

[0047] At this time, the current usage on the new electricity meter and the old electricity meter are consistent in numerical changes. Then the technician unplugs the old electricity meter and rotates the new electricity meter 90° so that the new electricity meter fits with the base plate 1. Then the technician adjusts the position of the new electricity meter and fixes the new electricity meter to the fixing ear 14 of the base plate 1 with the fixing screws 15.

[0048] Then install the protective cover 9 on the extension plate 8 so that the protective cover 9 closes and blocks the wiring port 03 of the electricity meter. Finally, tighten the screws on the wiring protection shell 05 to fix the protective cover 9 on the meter case 01, thereby completing the replacement operation of the electricity meter.

[0049] The implementation principle of the non-destructive meter replacement device in the embodiment of the present application is as follows: a skilled worker electrically connects the terminal head 32 on the adapter bar 31 to the wiring port 03 of the new electricity meter, and then fixes the adapter bar 31 on the new electricity meter by tightening the connecting screws 341.

[0050] The technician then inserts the protective cover 9, loosens the fixing screws 15 on the old electricity meter, and then rotates the old electricity meter 90°. At this time, the old electricity meter is separated from the base plate 1, but the adapter plug 33 on the old electricity meter is still electrically connected to the conductive sheet 5 in the slot 4.

[0051] The technician places the new electricity meter between the two guide bars 12, and then pushes the new electricity meter with force so that the adapter plug 33 fixed on the new electricity meter is inserted into the slot 4 of the terminal block 2, so that the adapter plug 33 contacts the conductive sheet 5 in the slot 4. At this time, the new electricity meter and the old electricity meter are in parallel.

[0052] At this time, the current usage on the new electricity meter and the old electricity meter are consistent in numerical changes. Then the technician unplugs the old electricity meter and rotates the new electricity meter 90° so that the new electricity meter fits with the base plate 1. Then the technician adjusts the position of the new electricity meter and fixes the new electricity meter to the fixing ear 14 of the base plate 1 with the fixing screws 15.

[0053] Then install the protective cover 9 on the extension plate 8 so that the protective cover 9 closes and blocks the wiring port 03 of the electricity meter. Finally, tighten the screws on the wiring protection shell 05 to fix the protective cover 9 on the meter case 01, thereby completing the replacement operation of the electricity meter.

[0054] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A non-destructive meter replacement instrument, characterized by: The invention comprises a base plate (1), a wiring seat (2) and an adapter (3), wherein the wiring seat (2) is arranged on the base plate (1), a plurality of slots (4) are opened on adjacent two sides of the wiring seat (2), and a conductive sheet (5) for connecting to a circuit is arranged in each of the plurality of slots (4). The adapter (3) comprises an adapter bar (31), wherein the adapter bar (31) is provided with a plurality of wiring heads (32) on one side along the length direction of its edge, and a plurality of adapter plugs (33) on the other side. The adapter plugs (33) correspond to the slots (4) one by one, and the adapter plugs (33) are plugged into and matched with the slots (4). The adapter plugs (33) are used to contact the conductive sheet (5), the wiring heads (32) correspond to the adapter plugs (33) one by one and are electrically connected, and the wiring heads (32) are used to be electrically connected to the wiring port (03) of the electric energy meter. A fixing member (34) is provided between the adapter (3) and the electric energy meter.

2. The non-destructive meter replacement device according to claim 1, characterized in that: The fixing member (34) includes a connecting screw (341) passing through the transfer bar (31); a fixing slot (342) for the connecting screw (341) to pass through is provided on the transfer bar (31); and the connecting screw (341) is bolted to the electric energy meter.

3. The non-destructive meter replacement device according to claim 1, characterized in that: A plurality of mounting holes (6) are provided on the base plate (1), and mounting screws (7) are provided on the mounting holes (6).

4. The non-destructive meter replacement device according to claim 1, characterized in that: Extension plates (8) are provided on the bottom plate (1) and on both sides of the wiring seat (2); a protective cover plate (9) is detachably provided on the extension plate (8); and the wiring protection shell (05) presses the protective cover plate (9) onto the watch case (01).

5. The non-destructive meter replacement device according to claim 4, characterized in that: A limiting notch (10) is provided on the protective cover (9), and a protrusion (11) is provided on the wiring protective shell (05), and the protrusion (11) is inserted into the limiting notch (10).

6. The non-destructive meter replacement device according to claim 4, characterized in that: Guide bars (12) are provided on the bottom plate (1) and on both sides of the wiring seat (2), and both sides of the electric energy meter are used to contact the guide bars (12).

7. The non-destructive meter replacement device according to claim 6, characterized in that: An avoidance chamfer (13) is provided between two sides of the wiring seat (2) where the slot (4) is opened.

8. The non-destructive meter replacement device according to claim 7, characterized in that: A fixing ear (14) is provided on the base plate (1), and a fixing screw (15) is bolted to the fixing ear (14), and the fixing screw (15) presses the mounting ear (04) onto the fixing ear (14).

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