Device for quickly changing meters without power off and method of using the same

Abstract

The present invention discloses a device for quickly changing a meter without power off and a method for using the device, which relates to electric power equipment and is intended to solve the problem that a plug must be carried to perform meter changing operations without power off, and when the plug is lost, it is inconvenient for people to operate. The key points of the technical solution are: a support portion against the bottom end of the meter is provided on the wiring base plate, and a wiring terminal plugged into the meter is fixedly connected to the support portion, and a short-circuit slot located between the wiring terminals is provided on the side wall of the support portion, which responds to the synchronous plugging of the plug between adjacent wiring terminals to short-circuit the same-polarity power supply end of the meter; a bridge circuit connected to the same-polarity wiring terminal is provided in the wiring base plate. The displacement of the magnetic block on the anti-theft cover of the present invention enables the Hall induction module coupled to the bridge circuit to maintain the conduction of the bridge circuit due to the change of the magnetic field, so that the meter can be powered on without power off by only displacing the anti-theft cover, and the purpose of replacing the meter without affecting the normal power consumption of indoor users is achieved, and it is simpler.

Description

Technical Field

[0001] The present invention relates to electric power equipment, and more particularly to a device for quickly changing a meter without power off and a method for using the device. Background Art

[0002] Replacing an energy meter is a routine task during the installation and connection of electricity. Currently, the replacement of a user's energy meter needs to be done after a power outage, which will cause a periodic power outage for the user and affect their normal life. Power outages need to be notified to the user in advance. Although there are many ways to notify, there will always be situations where the notification is not made, which will bring cost expenditures to the power supply company.

[0003] The Chinese patent with publication number CN215599237U discloses a non-stop fast meter changing device, and its technical key points are: it includes an upper shell, a lower shell is arranged at the bottom of the upper shell, card slots are arranged inside the upper shell and the lower shell, and protective covers rotatably connected are arranged on both sides of the top of the upper shell. A plug and a clamping screw are arranged on the inner side of the card slot. Four plugs are arranged, and the number of clamping screws is the same as that of the plugs. A square groove is arranged at the bottom of the clamping screw, and one end of the plug is located in the square groove.

[0004] The above technical solution is to insert the plug into the square slot, and then use rivets to fix the plug between the upper shell and the lower shell, insert the plug into the electric meter, insert the wire from one end of the plug into the inside of the plug, and use the clamping screw to press the wire to form a loop. However, for the operator, when replacing the electric meter, it is necessary to install and remove the plug to switch the circuit. Therefore, when the operator goes out, he often needs to carry the plug to perform the meter replacement operation without interrupting the power supply. When the plug is lost or damaged, it is inconvenient for people to operate.

[0005] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0006] In view of the deficiencies in the prior art, an object of the present invention is to provide a device for quickly changing a meter without powering off and a method for using the same.

[0007] The above technical objectives of the present invention are achieved through the following technical solutions: a device for quickly changing a meter without power off, comprising a power distribution cabinet, wherein the power distribution cabinet is provided with an isolating switch and a plurality of circuit breakers, wherein the power distribution cabinet is detachably connected with a plurality of wiring bottom plates electrically connected to the circuit breakers, wherein the wiring bottom plates are used to plug in an electric meter;

[0008] The wiring bottom plate is provided with a support portion against the bottom end of the electric meter, the support portion is fixedly connected with a wiring terminal plugged into the electric meter, and the side wall of the support portion is provided with a short-circuit slot located between the wiring terminals, in response to the plug being synchronously plugged between adjacent wiring terminals to short-circuit the same-pole power supply terminal of the electric meter;

[0009] A bridge circuit connected to wiring terminals of the same polarity is provided in the wiring base plate, an anti-theft cover located on one side of the support portion is clamped on the wiring base plate, a plurality of magnetic blocks are provided on the anti-theft cover plate, and a Hall sensing module connected in parallel to the bridge circuit is provided in the wiring base plate, and the Hall sensing module responds to changes in the magnetic field to keep the bridge circuit conductive.

[0010] By adopting the above technical scheme, the setting of the isolating switch and the circuit breaker in the distribution cabinet can realize the control of the electric meter and the household electricity consumption during the initial installation, and the support part arranged on the wiring base plate plays a role of supporting and limiting the installation of the electric meter, and a bridge circuit connected to the wiring terminal is arranged in the wiring base plate. When removing and installing the anti-theft cover plate, due to the displacement of the magnetic block on the anti-theft cover plate, the Hall induction module coupled to the bridge circuit maintains the conduction of the bridge circuit due to the change of the magnetic field, and then whether the electric meter is installed or not, it will not affect the normal electricity consumption of indoor users, so that when replacing the electric meter, it is only necessary to move the anti-theft cover plate to realize the replacement of the electric meter without power outage.

[0011] The present invention is further configured as follows: a limiting angle plate is provided on the wiring base plate and is arranged parallel to the support portion; a space for accommodating an anti-theft cover plate is formed between the limiting angle plate and the side wall of the support portion; an embedding groove is provided on the anti-theft cover plate and is coaxially arranged with a plurality of short-circuit grooves for accommodating a magnetic block; and adjacent magnetic blocks embedded in the embedding groove are arranged with opposite polarities.

[0012] By adopting the above technical solution, the setting of the limiting angle plate plays a role of limiting and guiding the displacement of the anti-theft cover plate, and the magnetic block is connected to the anti-theft cover plate through the embedded groove, which is convenient for production and processing. At the same time, the polarities of adjacent magnetic blocks are set in reverse, which can form a stable magnetic field between the magnetic blocks. When the anti-theft cover plate is displaced, the Hall sensing module can evenly cut the magnetic flux lines and respond sensitively.

[0013] The present invention is further configured as follows: a plurality of metal rings arranged opposite to the magnetic blocks are bonded to the side surfaces of the support portion.

[0014] By adopting the above technical solution, a metal ring corresponding to the magnetic block is arranged on the side of the support part. When the anti-theft cover plate is moved to the completed state, the magnetic block can absorb the metal ring, so that the anti-theft cover plate and the wiring base plate have good connection strength. At the same time, the damping generated after the attraction can give the operator obvious feedback, thereby improving the operator's operation accuracy.

[0015] The present invention is further configured as follows: the Hall sensor module comprises:

[0016] A mutual inductance circuit is disposed in the support portion and outputs an induced current in response to radial displacement of the plurality of magnetic blocks;

[0017] A conversion circuit is coupled to the mutual inductance circuit, receives the induced current and outputs a potential signal as a voltage signal;

[0018] A judgment circuit is coupled to the conversion circuit, and outputs a bridge signal in response to the potential signal meeting a set reference range;

[0019] The bridge circuit is coupled to the judgment circuit and responds to the bridge signal to close the bridge circuit.

[0020] By adopting the above technical solution, the mutual inductance circuit outputs the induced current through the change of the magnetic field, and the conversion circuit converts the induced current into a potential signal of a voltage signal. When the judgment circuit judges that the potential signal is within the reference range set by the composite, the output bridging signal causes the bridging circuit to be energized and closed, thereby realizing the connection of the wiring terminals with the same pole, so that the electric meter can be replaced without powering off.

[0021] The present invention is further configured to include:

[0022] A self-locking circuit is coupled to the bridge circuit and the judgment circuit, and is responsive to the bridge circuit being energized to keep the bridge circuit continuously closed;

[0023] A touch sensing circuit is disposed on the inner top surface of the support portion and is responsive to the electric meter being touched to output a touch signal as a digital signal;

[0024] A rising edge trigger circuit is coupled to the touch sensing circuit and outputs a bridge breaking signal in response to a rising edge change of the touch signal;

[0025] The bridge-breaking trigger switch is connected in series in the bridge circuit and responds to the bridge-breaking signal to disconnect the power supply of the bridge circuit.

[0026] By adopting the above technical solution, the self-locking circuit gives feedback when the bridging circuit is energized to achieve self-locking, keep the bridging circuit closed, and maintain normal household power supply during the meter replacement process. The touch sensing circuit can judge when the meter is replaced, and provide feedback by touch after the installation of the meter is completed. When the rising edge trigger circuit responds to the rising edge change brought by the touch signal, it outputs a bridge breaking signal to trigger the bridge breaking trigger switch, thereby disconnecting the power supply of the bridging circuit. Therefore, the bridging circuit is automatically disconnected after the meter replacement operation is completed, so that the meter can work normally.

[0027] The present invention is further configured as follows: the bridge circuit is electrically connected to a plurality of light emitting diodes arranged in parallel via a power taking circuit, and the light emitting diodes are arranged on the top surface of the support portion.

[0028] By adopting the above technical solution, a number of light-emitting diodes electrically connected to the bridge circuit through the power-taking circuit can light up when the bridge circuit is closed, thereby achieving a lighting effect, making it easier for people to install and replace the electric meter. At the same time, it can also serve as an indicator to show the on / off status of the bridge circuit.

[0029] A method for using a device for quickly changing a meter without power off, characterized in that the method for using the device comprises:

[0030] Method 1:

[0031] For initial installation, install the power distribution cabinet on the wall, and install the isolating switch and circuit breaker in sequence;

[0032] Install the wiring base plates, arrange the wiring base plates in an array according to the number of households, keep the horizontal distance between the wiring base plates at 60mm, and install branching clamps between the vertically arranged wiring base plates;

[0033] Install the anti-theft cover plate, and embed the anti-theft cover plate between the limiting angle plate and the support part along the space from top to bottom, so that the magnetic block and the short-circuit groove are arranged correspondingly;

[0034] Test the bridge circuit and observe the lighting status of the light-emitting diodes arranged on the top surface of the support. If there is flickering or no light, it is judged that the connection terminal and the power connection line are in poor contact;

[0035] Install the meter from top to bottom, insert the terminal block into the inner bottom of the meter, and make the bottom of the meter contact the support part, thus completing the initial installation of the meter;

[0036] During inspection, first observe the lighting status of the LED. If the LED is off, screw through the anti-theft cover and the meter to tighten the terminal.

[0037] The present invention is further configured as follows: its replacement steps include: first loosening and removing the screws connecting the anti-theft cover, the electric meter and the wiring terminals, then pulling the anti-theft cover from bottom to top, and after the light-emitting diode is lit, dismantling the electric meter from the wiring base plate by displacement from bottom to top, then installing the electric meter to be replaced on the wiring base plate from top to bottom, and keeping a distance between the electric meter and the top surface of the support part, and then inserting the anti-theft cover between the limiting angle plate and the support part, and finally pressing the electric meter to make it contact with the support part, and tightening the screws to connect the anti-theft cover to the electric meter after the light-emitting diode is extinguished, and covering the electric meter with a protective cover to conceal the position of the screws.

[0038] The present invention is further configured as follows: the method of using the present invention further comprises:

[0039] Method 2: When the anti-theft cover is removed and the LED does not light up, you can insert an external plug into the short-circuit slot to short-circuit adjacent terminals of the same pole, and then disassemble and replace the meter. After the replacement is completed, unplug the plug and cover the anti-theft cover, and tighten the screws to complete the installation.

[0040] In summary, the present invention has the following beneficial effects:

[0041] The setting of the isolating switch and the circuit breaker in the distribution cabinet can realize the control of the electric meter and the household electricity consumption during the initial installation, and the support part arranged on the wiring base plate plays a role of supporting and limiting the installation of the electric meter, and a bridge circuit connected to the wiring terminal is arranged in the wiring base plate. When removing and installing the anti-theft cover plate, due to the displacement of the magnetic block on the anti-theft cover plate, the Hall sensing module coupled to the bridge circuit maintains the conduction of the bridge circuit due to the change of the magnetic field, and then whether the electric meter is installed or not, it will not affect the normal electricity consumption of indoor users, so that when replacing the electric meter, it is only necessary to move the anti-theft cover plate to realize the replacement of the electric meter without power outage. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of the present invention;

[0043] Figure 2 for Figure 1 A magnified schematic diagram of part A;

[0044] Figure 3 It is a structural schematic diagram of the wiring base plate in the present invention;

[0045] Figure 4 for Figure 3 An enlarged schematic diagram of part B;

[0046] Figure 5 This is a module block diagram of the Hall sensor module in the present invention.

[0047] In the figure: 1. distribution cabinet; 2. isolating switch; 3. circuit breaker; 4. wiring base plate; 5. supporting part; 6. wiring terminal; 7. short-circuit slot; 8. anti-theft cover; 9. magnetic block; 10. limit angle plate; 11. light-emitting diode. DETAILED DESCRIPTION

[0048] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0049] Embodiment 1: A device for quickly changing a meter without power off, comprising a power distribution cabinet 1, wherein an isolating switch 2 and a plurality of circuit breakers 3 are arranged in the power distribution cabinet 1, wherein a plurality of wiring base plates 4 electrically connected to the circuit breakers 3 are detachably connected in the power distribution cabinet 1, wherein the wiring base plates 4 are used to plug in an electric meter, and a support portion 5 is arranged on the wiring base plate 4 against the bottom end of the electric meter, and a wiring terminal 6 plugged in to the electric meter is fixedly connected to the support portion 5, and a short-circuit groove 7 between the wiring terminals 6 is arranged on the side wall of the support portion 5, and in response to the plug being synchronously plugged in between adjacent wiring terminals 6 to short-circuit the same-polarity power supply terminal of the electric meter, and a bridging circuit connected to the wiring terminals 6 of the same polarity is arranged in the wiring base plate 4, An anti-theft cover plate 8 located on one side of the support portion 5 is clamped on the wiring base plate 4, and a plurality of magnetic blocks 9 are arranged on the anti-theft cover plate 8. A Hall sensing module connected in parallel with the bridging circuit is arranged inside the wiring base plate 4, and the Hall sensing module responds to changes in the magnetic field to keep the bridging circuit conductive. A limiting angle plate 10 arranged parallel to the support portion 5 is provided on the wiring base plate 4, and a space for accommodating the anti-theft cover plate 8 is formed between the limiting angle plate 10 and the side wall of the support portion 5. An embedding groove coaxially arranged with the plurality of short-circuit grooves 7 for accommodating the magnetic blocks 9 is provided on the anti-theft cover plate 8, and the adjacent magnetic blocks 9 embedded in the embedding groove are arranged with opposite polarities, and a plurality of metal rings arranged opposite to the magnetic blocks 9 are bonded to the side surfaces of the support portion 5.

[0050] Among them, the Hall sensor module includes:

[0051] A mutual inductance circuit is disposed in the support portion 5 and outputs an induced current in response to radial displacement of the plurality of magnetic blocks 9;

[0052] A conversion circuit is coupled to the mutual inductance circuit, receives the induced current and outputs a potential signal as a voltage signal;

[0053] A judgment circuit is coupled to the conversion circuit, and outputs a bridge signal in response to the potential signal meeting a set reference range;

[0054] The bridge circuit is coupled to the judgment circuit and responds to the bridge signal to close the bridge circuit;

[0055] A self-locking circuit is coupled to the bridge circuit and the judgment circuit, and is responsive to the bridge circuit being energized to keep the bridge circuit continuously closed;

[0056] A touch sensing circuit is disposed on the inner top surface of the support portion 5 and responds to the touch of the electric meter to output a touch signal as a digital signal;

[0057] A rising edge trigger circuit is coupled to the touch sensing circuit and outputs a bridge breaking signal in response to a rising edge change of the touch signal;

[0058] The bridge-breaking trigger switch is connected in series in the bridge circuit and responds to the bridge-breaking signal to disconnect the power supply of the bridge circuit.

[0059] The bridge circuit is electrically connected to a plurality of light emitting diodes 11 arranged in parallel via a power taking circuit. The light emitting diodes 11 are arranged on the top surface of the support portion 5 .

[0060] Specifically, the mutual inductance circuit is an induction coil arranged in the support part 5 and perpendicular to the setting direction of the anti-theft cover plate 8. When the magnetic suction block is vertically displaced, the induction coil cuts the magnetic flux lines to generate an induced current, and a transistor amplifier circuit is also arranged in the mutual inductance circuit to linearly amplify the generated induced current, and convert the current signal into a potential signal of a voltage signal through a conversion circuit. Specifically, the conversion circuit is a fixed resistor in this embodiment, and a voltage comparator is used as a judgment circuit. When the voltage is greater than the set reference voltage, a high-level or low-level bridging signal is output, and a transistor switch circuit composed of an NPN or PNP transistor is selected. When a high-level or low-level bridging signal is generated, the bridging circuit can be controlled to be closed.

[0061] The self-locking circuit is a normally open relay, and the controlled switch of the relay is connected in parallel to the collector and emitter of the transistor in the transistor switch circuit. When the transistor switch circuit is turned on, the relay is energized and short-circuit the transistor, realizing the self-locking of the power supply of the circuit, keeping the bridge circuit to short-circuit the two terminals 6 of the same pole, so that before changing the meter, the city power can be directly supplied to the residents through the bridge circuit for short-term power use.

[0062] In this embodiment, the touch sensing circuit can use a pressure sensor as a collection unit. When the electric meter is installed and touches the support part 5, the weight of the electric meter itself acts on the support part 5, thereby outputting a high-level signal. Therefore, when the electric meter is disassembled, the signal output by the touch sensing circuit changes from a high level to a low level, generating a falling edge. When the electric meter is replaced, the signal output by the touch sensing circuit changes from a low level to a high level through touching, generating a rising edge signal. The bridge breaking trigger switch is a rising edge triggered RS trigger. The output end of the RS trigger is connected to a normally closed power-off relay through a line. The on-off controlled switch of the power-off relay is connected in series in the bridge circuit. When the touch sensing circuit senses that the electric meter is touched and generates a rising edge signal, the bridge circuit is powered off. At the same time, a number of light emitting diodes 11 are connected in parallel in sequence and in series with the bridge circuit. The power taking circuit is an energy storage capacitor arranged in parallel with the light emitting diode 11 and connected in series in the bridge circuit.

[0063] Embodiment 2

[0064] A method for using a device for quickly changing a meter without power off, the method comprising:

[0065] Method 1:

[0066] For initial installation, install the power distribution cabinet 1 on the wall, and then install the isolating switch 2 and the circuit breaker 3 in sequence;

[0067] Install the wiring base plates 4, arrange the wiring base plates 4 in an array according to the number of households, keep the horizontal distance between the wiring base plates 4 at 60 mm, and set the branching clamps between the vertically arranged wiring base plates 4;

[0068] Install the anti-theft cover plate 8, and embed the anti-theft cover plate 8 between the limiting angle plate 10 and the support part 5 from top to bottom along the space, so that the magnetic block 9 and the short-circuit groove 7 are arranged correspondingly;

[0069] Test the bridge circuit and observe the lighting status of the light-emitting diodes 11 arranged on the top surface of the support part 5. If there is flickering or no light, it is determined that the connection terminal 6 is in poor contact with the power connection line;

[0070] Install the meter from top to bottom, insert the terminal 6 into the inner bottom of the meter, and make the bottom of the meter contact the support 5, thus completing the initial installation of the meter;

[0071] During the inspection, first observe the lighting status of the light emitting diode 11. If the light emitting diode 11 is off, screw through the anti-theft cover 8 and the electric meter to tighten the terminal 6 in sequence.

[0072] The replacement steps include: first loosen and remove the screws connecting the anti-theft cover 8, the electric meter and the terminal 6, then pull out the anti-theft cover 8 from bottom to top, and after the light-emitting diode 11 is lit, disassemble the electric meter from the wiring base plate 4 by displacement from bottom to top, then install the electric meter to be replaced on the wiring base plate 4 from top to bottom, and keep a distance between the electric meter and the top surface of the support part 5, and then insert the anti-theft cover 8 between the limiting angle plate 10 and the support part 5, and finally press the electric meter to make it contact with the support part 5. After the light-emitting diode 11 is off, tighten the screws to connect the anti-theft cover 8 to the electric meter, and cover the protective cover on the electric meter to conceal the position of the screws.

[0073] Its usage also includes:

[0074] Method 2: When the anti-theft cover 8 is removed and the light-emitting diode 11 is not lit, an external plug can be inserted into the short-circuit slot 7 to short-circuit adjacent terminals 6 of the same pole, and then the meter can be disassembled and replaced. After the replacement is completed, unplug the plug and cover the anti-theft cover 8, and tighten the screws to complete the installation.

[0075] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A device for quickly changing a meter without power off, characterized in that: The invention comprises a power distribution cabinet (1), wherein an isolating switch (2) and a plurality of circuit breakers (3) are arranged in the power distribution cabinet (1), and a plurality of wiring base plates (4) electrically connected to the circuit breakers (3) are detachably connected in the power distribution cabinet (1), wherein the wiring base plates (4) are used for plugging in an electric meter; The wiring base plate (4) is provided with a support portion (5) which abuts against the bottom end of the electric meter, the support portion (5) is fixedly connected with a wiring terminal (6) plugged into the electric meter, and a short-circuiting groove (7) located between the wiring terminals (6) is provided on the side wall of the support portion (5), which responds to the plug being synchronously plugged into adjacent wiring terminals (6) to short-circuit the same-pole power supply terminal of the electric meter; The wiring base plate (4) is provided with a bridge circuit connected to the wiring terminals (6) of the same polarity, the wiring base plate (4) is clamped with an anti-theft cover plate (8) located on one side of the support portion (5), the anti-theft cover plate (8) is provided with a plurality of magnetic blocks (9), the wiring base plate (4) is provided with a Hall sensor module connected in parallel with the bridge circuit, the Hall sensor module responds to changes in the magnetic field to keep the bridge circuit conductive.

2. The device for quickly changing a meter without power off according to claim 1, characterized in that: The wiring base plate (4) is provided with a limiting angle plate (10) arranged parallel to the support portion (5), and a space for accommodating the anti-theft cover plate (8) is formed between the limiting angle plate (10) and the side wall of the support portion (5). The anti-theft cover plate (8) is provided with an embedding groove coaxially arranged with the plurality of short-circuit grooves (7) for accommodating a magnetic block (9), and the adjacent magnetic blocks (9) embedded in the embedding groove are arranged with opposite polarities.

3. The device for quickly changing a meter without power off according to claim 2, characterized in that: A plurality of metal rings arranged opposite to the magnetic blocks (9) are bonded to the side surfaces of the support portion (5).

4. The device for quickly changing a meter without power off according to claim 1, characterized in that: The Hall sensor module comprises: A mutual inductance circuit is arranged in the support portion (5) and is responsive to radial displacement of the plurality of magnetic blocks (9) to output an induced current; A conversion circuit is coupled to the mutual inductance circuit, receives the induced current and outputs a potential signal as a voltage signal; A judgment circuit is coupled to the conversion circuit, and outputs a bridge signal in response to the potential signal meeting a set reference range; The bridge circuit is coupled to the judgment circuit and responds to the bridge signal to close the bridge circuit.

5. The device for rapid meter replacement without power outage according to claim 4, characterized in that: Also includes: A self-locking circuit is coupled to the bridge circuit and the judgment circuit, and is responsive to the bridge circuit being energized to keep the bridge circuit continuously closed; A touch sensing circuit is disposed on the inner top surface of the support portion (5) and is responsive to a touch of the electric meter to output a touch signal as a digital signal; A rising edge trigger circuit is coupled to the touch sensing circuit and outputs a bridge breaking signal in response to a rising edge change of the touch signal; The bridge-breaking trigger switch is connected in series in the bridge circuit and responds to the bridge-breaking signal to disconnect the power supply of the bridge circuit.

6. The device for rapid meter replacement without power outage according to claim 5, characterized in that: The bridge circuit is electrically connected to a plurality of light-emitting diodes (11) arranged in parallel via a power taking circuit, and the light-emitting diodes (11) are arranged on the top surface of the support portion (5).

7. A method for using a device for quickly changing a meter without power off, applied to the device for quickly changing a meter without power off as claimed in any one of claims 1 to 6, characterized in that: Its usage includes: Method 1: During initial installation, install the power distribution cabinet (1) on the wall, and then install the isolating switch (2) and the circuit breaker (3) in sequence; Install wiring base plates (4), arrange the wiring base plates (4) in an array in sequence according to the number of household owners, keep the horizontal distance between the wiring base plates (4) at 60 mm, and provide wire splitting clamps between the vertically arranged wiring base plates (4); Install the anti-theft cover plate (8), and embed the anti-theft cover plate (8) from top to bottom along the space between the limiting angle plate (10) and the support portion (5), so that the magnetic block (9) and the short-circuit groove (7) are arranged correspondingly; Testing the bridge circuit, observing the lighting condition of the light-emitting diodes (11) arranged on the top surface of the support portion (5), if there is flickering or no lighting, it is judged that the connection terminal (6) is in poor contact with the power connection line; Installing the electric meter from top to bottom, inserting the wiring terminal (6) into the inner bottom end of the electric meter, and making the bottom end of the electric meter contact the support part (5), thereby completing the initial installation of the electric meter; During the inspection, first observe the lighting status of the light emitting diode (11). If the light emitting diode (11) is off, screw through the anti-theft cover (8) and the electric meter to tighten the terminal block (6) in sequence.

8. The method for using the device for rapid meter replacement without power outage according to claim 7, characterized in that: The replacement steps include: firstly, loosening and removing the screws connecting the anti-theft cover plate (8), the electric meter and the wiring terminal (6); then, pulling out the anti-theft cover plate (8) from bottom to top; after the light emitting diode (11) is lit, displacing the electric meter from the wiring base plate (4) from bottom to top for removal; then, installing the electric meter to be replaced from top to bottom on the wiring base plate (4), and keeping a distance between the electric meter and the top surface of the support portion (5); then, inserting the anti-theft cover plate (8) between the limiting angle plate (10) and the support portion (5); finally, pressing the electric meter to make it contact with the support portion (5); after the light emitting diode (11) is turned off, tightening the screws to connect the anti-theft cover plate (8) to the electric meter; and covering the electric meter with a protective cover to conceal the position of the screws.

9. The method for using the device for rapid meter replacement without power outage according to claim 7, characterized in that: Its usage also includes: Method 2: When the anti-theft cover (8) is removed and the light-emitting diode (11) does not light up, an external plug can be inserted into the short-circuit slot (7) to short-circuit adjacent wiring terminals (6) of the same polarity, and then the meter is disassembled and replaced. After the replacement is completed, the plug is pulled out and the anti-theft cover (8) is covered, and the screws are tightened to complete the installation.

Images