CN214669234U - Device for noninductive replacement of ammeter - Google Patents

Abstract

The utility model provides a noninductive equipment of changing the ammeter, including mounting and plug connector, the mounting includes base, a plurality of binding post, ammeter grafting post and closing cap, the base back and ammeter case fixed connection, the base openly with the ammeter joint, binding post installs on the base. The utility model discloses a substantive effect is: 1) the ammeter is short-circuited through the binding post connecting the live wire and the zero line, so that the ammeter can be replaced on the premise of not influencing electricity consumption of a user; 2) the seal cover and the communication module are introduced, so that the information of the electric meter can be inquired from the background server, and the electricity stealing is prevented; 3) the voltage indicator lamp and the load current indicator lamp are introduced, and the ammeter is replaced after being short-circuited, so that the safety and the reliability are realized. The technical problems that the table changing process is complicated, the power consumption of a user is influenced, and potential safety hazards exist in the prior art are solved.

Description

Device for noninductive replacement of ammeter

Technical Field

The utility model belongs to the technical field of electric power system overhauls technique and specifically relates to indicate a noninductive equipment of changing the ammeter.

Background

Due to the development of networks, the electricity consumption of each household is collected by using a remote meter reading system at present, and the old-fashioned electricity meters can not meet the requirements of a new era. The intelligent electric meter is replaced inevitably, the novel intelligent electric meter perfects various functions, can not only deduct fees, but also memorize electric quantity and give an excess alarm, saves a plurality of manpower and material resources for the electric power department, improves the working efficiency, and is very humanized.

In consideration of electricity safety, according to the seventy-nine regulations of power supply business rules, the rotation period of the high-voltage metering three-phase meter is generally 3-4 years, the rotation period of the low-voltage metering three-phase meter is 4-6 years, and the rotation period of the low-voltage single-phase electric energy meter is 6-10 years. When the ammeter reaches the cycle of rotation or breaks down, need electric power department staff to go to the door and trade the table promptly, prior art because the ammeter is established ties in user live wire of registering one's residence, need earlier the disconnection of user side power supply when trading the table, resume user's power supply after changing the ammeter and accomplish again and have the technical problem that the table process of trading is loaded down with trivial details and influence user's power consumption. The prior art also has the technical problem that electricity is easy to steal.

In order to solve the technical problem, the publication number CN205861739U discloses an uninterruptible power supply meter, which comprises an upper shell and a lower shell, wherein the first shell is connected with a flip cover, one end of the flip cover is fixed on the first shell through a rotating shaft, the other end of the flip cover can rotate around the rotating shaft, a step surface is formed between the upper shell and the lower shell, the step surface is provided with a plurality of wiring terminals, the step surface is further provided with an electricity larceny prevention cover plate, one end of the electricity larceny prevention cover plate is provided with a first through hole, the lower shell is provided with a second through hole right opposite to the first through hole, the first through hole and the second through hole are provided with rotating rods in a penetrating way, the electricity larceny prevention cover plate can rotate around the rotating rods and further comprises an uninterruptible power supply component, the uninterruptible power supply component comprises a support, and the bottom surface of the support is provided with wiring terminals with the same number as the wiring terminals, and each terminal corresponds to a binding post. The uninterruptible power supply meter has the advantages that: the rotatable anti-electricity-theft cover plate is connected to the shell in a mode that the slot is matched with the inserted rod, and is sealed through the lock catch piece arranged on the shell, so that on one hand, the anti-electricity-theft function is realized, the wiring terminal is sealed in the cover plate, and on the other hand, the opening and closing of the anti-electricity-theft panel can be conveniently controlled through opening and closing the lock catch piece, and the maintenance and the disassembly and the assembly are convenient; when the ammeter needs to be replaced, in order to prevent the power-off phenomenon in the replacement process, after the electric wire is pulled out of the wiring terminal, the wiring terminal on the power-off plug is inserted into the wiring terminal by an operator, so that the smoothness of the circuit is kept, the ammeter is replaced, and the uninterrupted ammeter replacement is realized. However, after the wiring terminal of the uninterruptible power supply ammeter is inserted into the wiring terminal, the staff of the power department cannot judge whether the ammeter is completely short-circuited or not, and once the short circuit is incomplete, the ammeter is pulled out, so that the power consumption of a user can be influenced, and potential safety hazards such as electric shock of personnel can be caused.

Disclosure of Invention

The to-be-solved technical problem of the utility model is: the technical problems that the existing ammeter is complex in meter changing process, affects electricity consumption of users and has potential safety hazards are solved.

In order to solve the technical problem, the utility model provides a device for changing the ammeter in a non-inductive way without influencing the electricity consumption of users after the ammeter is completely short-circuited, which comprises a fixing part and a plug connector, wherein the fixing part comprises a base, a plurality of connecting terminals, an ammeter splicing column and a sealing cover, the back surface of the base is fixedly connected with the ammeter box, the front surface of the base is clamped with the ammeter, the connecting terminals are arranged on the base, the connecting terminals comprise an inlet wire end, a leading-out wire end and a fastening screw, the inlet wire end is connected with an electric wire, the leading-out wire end is connected with the ammeter splicing column, the fastening screw enables the electric wire to be tightly connected with the inlet wire end, the inlet wire end is electrically connected with the leading-out wire end, the plug connector comprises a handle, a connecting plate, an indicator lamp and a plurality of clamping connectors, a cavity is arranged in the connecting plate, the electric meter comprises a cavity, a connecting plate, an indicating lamp, a handle, a connecting plate, a clamping connector, a plurality of electric meter inserting columns and a sealing cover, wherein conductors are arranged in the cavity, the clamping connector is arranged below the connecting plate, the indicating lamp is arranged above the connecting plate, the handle is clamped with the connecting plate, the number and the interval of the clamping connectors are matched with those of the electric meter inserting columns, every two adjacent clamping connectors are in one group, the two clamping connectors in the same group are electrically connected with each other through the conductors in the cavity, and the sealing cover is connected with the base and seals the connecting terminals. The number of the clamping joints is related to the phase and line number of the electric meter, and the number of the clamping joints matched with a common civil single-phase four-line electric meter is four, and every two clamping joints are in one group. The closing cap stops entering binding post such as dust rainwater on the one hand, and all binding posts of on the other hand seal can prevent that the user from short circuit ammeter electricity stealing by oneself. The utility model discloses a novel ammeter, including fixing part, clamping head, fixing part, and sealing cover, and the fixing part, fixing part and fixing part, and fixing part, and fixing part.

Preferably, the wire inlet end is arranged at the lower end of the wiring terminal, the wire outlet end is arranged at the upper end of the wire outlet terminal, and the fastening screw is arranged on the front surface of the wiring terminal. According to the structure of the existing electric meter box and the electric meter, the preferred scheme is convenient for the installation of the electric meter.

Preferably, a voltage transformer and a current transformer are arranged in the cavity of the connecting plate, the indicator lamp comprises a voltage indicator lamp and a load current indicator lamp, the voltage transformer detects the voltage on the conductor and supplies power to the voltage indicator lamp, and the current transformer detects the current on the conductor and supplies power to the load current indicator lamp. The voltage transformers are connected in parallel at two ends of the conductor, and the current transformers are connected in series with the conductor. When the clamping connector is contacted with the corresponding electric meter plug column, the voltage indicator lamp is lightened when the ground potential of the conductor pair is larger than a set value N1, and the load current indicator lamp is lightened when the current on the conductor exceeds a set value N2. When the voltage indicator light is on and the load current indicator light is not on, the situation that the short circuit of the electric meter is incomplete may exist.

Preferably, the device for replacing the electricity meter in a non-inductive mode further comprises a collector, a 485 line connector and a communication module, wherein the 485 line connector is installed on the sealing cover, the collector collects readings of the electricity meter, the collector is connected with the communication module through the 485 line connector, and the communication module is in data interaction with the background server. 485 joint total two wiring ends, the closing cap is equipped with two bellied installations department, 485 connect install on one of them installation department and through the data line that length is just with communication module and the ammeter is connected, consequently works as when the closing cap is opened, the ammeter can break off with backend server's communication, and backend server can receive the signal that the ammeter closing cap was opened.

As preferred, the plug connector still includes switch and switch reset spring, the handle includes two trailing arms and linking arm, two the trailing arm passes through the linking arm is connected, the trailing arm is equipped with the nose bar, the switch is established ties the joint with between the conductor in the cavity, the upper surface of the contact of switch with the nose bar is connected, the lower surface of the contact of switch with switch reset spring connects, switch reset spring with connecting plate fixed connection. The shell of the plug connector is made of insulating resin, and a cavity is formed in the shell and used for installing other transmission and electric parts. The convex rod is an insulator, and when the handle is installed on the connecting plate, a switch in the connecting plate is jacked to an off position by the convex rod, namely, the electric meter is short-circuited only after the handle is taken down.

Preferably, the shape and the number of the electric meter plug columns are matched with the electric meter inlet/outlet holes.

Preferably, the voltage indicator lamp is connected in series with a protection resistor R1, and the load current indicator lamp is connected in parallel with a protection resistor R2. The existence of protection resistance can make the pilot lamp be difficult for transshipping and burn out, makes the utility model discloses it is more credible to voltage and current detection's result.

The utility model discloses a substantive effect is: 1) the ammeter is short-circuited through the binding post connecting the live wire and the zero line, so that the ammeter can be replaced on the premise of not influencing electricity consumption of a user; 2) the seal cover and the communication module are introduced, so that the information of the electric meter can be inquired from the background server, and the electricity stealing is prevented; 3) the voltage indicator lamp and the load current indicator lamp are introduced, and the ammeter is replaced after being short-circuited, so that the safety and the reliability are realized. The technical problems that the table changing process is complicated, the power consumption of a user is influenced, and potential safety hazards exist in the prior art are solved.

Drawings

Fig. 1 is a schematic structural diagram of the first embodiment.

FIG. 2 is a schematic view of a structure of a cap according to an embodiment.

FIG. 3 is a schematic structural diagram of a plug-in unit according to an embodiment.

Fig. 4 is an electrical schematic diagram of the first embodiment.

In the figure: 1. the electric meter comprises a base, 2 wiring terminals, 3 electric meter plug columns, 4 sealing covers, 5.485 wire connectors, 6 protruding rods, 7 handles, 8 connecting plates, 9 switch return springs, 10 voltage indicator lamps, 11 load current indicator lamps, 12 contact pieces, 13 meter-in wire card connectors, 14 meter-out wire card connectors, 15 meter-out zero wire card connectors and 16 meter-in zero wire card connectors.

Detailed Description

The following provides a more detailed description of the present invention, with reference to the accompanying drawings.

In the first embodiment, as shown in fig. 1, the fixing member of the non-inductive meter changing device includes a base 1, a plurality of wiring terminals 2 and an electric meter plug column 3, the back of the base 1 is fixedly connected with the electric meter box, the front of the base 1 is clamped with the electric meter, the wiring terminals 2 are installed on the base 1, the wiring terminals 2 include wire inlet ends, wire outlet ends and fastening screws, the wire inlet ends are connected with electric wires, the wire outlet ends are connected with the electric meter plug column 3, the fastening screws enable the electric wires to be tightly connected with the wire inlet ends, and the wire inlet ends are electrically connected with the wire outlet ends. The inlet wire end is arranged at the lower end of the wiring terminal 2, the outlet wire end is arranged at the upper end of the outlet wire terminal, and the fastening screw is arranged on the front surface of the wiring terminal 2.

As shown in fig. 2, the fixing member further includes a cover 4 and a 485 wire connector 5, wherein the cover 4 is connected to the base 1 and seals the plurality of wire connection terminals 2. The electric meter box is internally provided with a communication module and a collector which are connected through a 485 line joint 5, the 485 line joint 5 is installed on the sealing cover 4, the collector collects readings of the electric energy meter, the collector passes through the 485 line joint 5 and the communication module is connected, and the communication module and the background server carry out data interaction. 485 line connection 5 is total two wiring ends, closing cap 4 is equipped with two bellied installations department, 485 line connection 5 install on one of them installation department and through length data line just with communication module and the ammeter is connected, consequently works as when closing cap 4 is opened, the ammeter can break off with backend server's communication, and backend server can receive the signal that ammeter closing cap 4 was opened.

As shown in fig. 3, the plug connector of the first embodiment includes a handle 7, a connecting plate 8, an indicator light and a plurality of joints, the housing of the plug connector is made of insulating material, a cavity is arranged in the connecting plate 8, a conductor is arranged in the cavity, the joints are arranged below the connecting plate 8, the indicator light is arranged above the connecting plate 8, and the handle 7 is connected with the connecting plate 8 in a clamping manner. The number of the clamping joints is four, and the clamping joints are correspondingly connected with a meter inlet live wire, a meter outlet live wire, a meter inlet zero line and a meter outlet zero line respectively. Advance table fire line card joint 13 and go out and be connected through switch and conductor in the cavity between the table fire line card joint 14, advance table zero line card joint 16 and advance and be connected through switch and conductor in the cavity between table fire line card joint 13, handle 7 includes two trailing arms and a linking arm, two trailing arms pass through the linking arm and connect, the trailing arm is equipped with the nose bar 6 that insulating resin made, the switch is established ties between the conductor in joint and cavity, the upper surface and the nose bar 6 of the contact 12 of switch are connected, the lower surface and the switch reset spring 9 of the contact 12 of switch are connected, switch reset spring 9 and connecting plate 8 fixed connection. When the handle 7 is mounted on the connection plate 8, the switch in the connection plate 8 is pushed by the protruding rod 6 to the off position, i.e. the electricity meter is short-circuited only after the handle 7 is removed. A voltage indicator light 10 and a load current indicator light 11 are arranged on the connection board 8. A voltage transformer and a current transformer are arranged in the cavity of the connecting plate 8, the voltage transformer detects the voltage on the conductor and supplies power to the voltage indicator lamp 10, and the current transformer detects the current on the conductor and supplies power to the load current indicator lamp 11.

As shown in fig. 4, two ends of a primary side coil of a voltage transformer PT are connected in parallel to a meter-in live wire clip connector 13 and a meter-out zero wire clip connector 15, a secondary side coil of the voltage transformer PT supplies power to a voltage indicator lamp 10, the voltage indicator lamp 10 is connected in series with a protection resistor R1, a primary side coil of a current transformer CT is connected in series between a meter-in zero wire clip connector 16 and a meter-out zero wire clip connector 15, a secondary side coil of the current transformer PT supplies power to a load current indicator lamp 11, and the load current indicator lamp 11 is connected in parallel with a protection resistor R2.

Use this embodiment to change the ammeter, open behind the closing cap 4, will the bayonet joint can be with the ammeter short circuit with the 3 contacts of ammeter grafting post that correspond, when voltage indicator 10 and load current indicator 11 were all bright, follows the ammeter this moment pull out on the ammeter grafting post 3, can not influence the user's power consumption, insert new ammeter on the ammeter grafting post 3, will again the plug connector with the mounting separation, new ammeter can normally work, seals the electricity of preventing stealing at last with closing cap 4 again.

The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the invention as set forth in the claims.

Claims (7)

1. The utility model provides a noninductive equipment of changing ammeter, includes mounting and plug connector, its characterized in that: the fixing piece comprises a base, a plurality of wiring terminals, ammeter inserting columns and a sealing cover, the back of the base is fixedly connected with an ammeter box, the front of the base is clamped with the ammeter, the wiring terminals are installed on the base and comprise wire inlet ends, wire outlet ends and fastening screws, the wire inlet ends are connected with wires, the wire outlet ends are connected with the ammeter inserting columns, the fastening screws enable the wires to be tightly connected with the wire inlet ends, the wire inlet ends are electrically connected with the wire outlet ends, the inserting pieces comprise handles, connecting plates, indicating lamps and a plurality of clamping joints, cavities are formed in the connecting plates, conductors are arranged in the cavities, the clamping joints are installed below the connecting plates, the indicating lamps are installed above the connecting plates, the handles are clamped with the connecting plates, and the number and the spacing of the clamping joints are matched with the number and the spacing of the ammeter inserting columns, every two adjacent joint heads are in a group, the two joint heads in the same group are mutually and electrically connected through the conductor in the cavity, and the sealing cover is connected with the base and seals the connecting terminals.

2. The apparatus for noninductive replacement of an electricity meter according to claim 1, wherein: the incoming line end is arranged at the lower end of the wiring terminal, the outgoing line end is arranged at the upper end of the outgoing line terminal, and the fastening screw is arranged on the front surface of the wiring terminal.

3. The apparatus for noninductive replacement of an electricity meter according to claim 1, wherein: be equipped with voltage transformer and current transformer in the connecting plate cavity, the pilot lamp includes voltage indicator and load current pilot lamp, voltage transformer responds to voltage on the conductor does voltage indicator supplies power, current transformer responds to current on the conductor does load current pilot lamp supplies power.

4. The apparatus for noninductive replacement of an electricity meter according to claim 1, wherein: the electric energy meter is characterized by further comprising a collector, a 485 line connector and a communication module, wherein the 485 line connector is installed on the sealing cover, the collector collects readings of the electric energy meter, the collector is connected with the communication module through the 485 line connector, and the communication module performs data interaction with the background server.

5. An apparatus for noninductive replacement of an electricity meter according to claim 1 or 3, characterized in that: the plug connector still includes switch and switch reset spring, the handle includes two trailing arms and a linking arm, two the trailing arm passes through the linking arm is connected, the trailing arm is equipped with the nose bar, the switch is established ties the joint with between the conductor in the cavity, the contact's of switch upper surface with the nose bar is connected, the contact's of switch lower surface with switch reset spring connects, switch reset spring with connecting plate fixed connection.

6. The apparatus for noninductive replacement of an electricity meter according to claim 1, wherein: the shape and the number of the electric meter inserting columns are matched with the electric meter inlet/outlet holes.

7. A device for the noninductive replacement of electric meters according to claim 3, characterized in that: the voltage indicator lamp is connected with a protective resistor R1 in series, and the load current indicator lamp is connected with a protective resistor R2 in parallel.

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