Intelligent electric energy meter with leakage remote monitoring and protection function

Abstract

The present application relates to the technical field of smart electric energy meter, in particular to a kind of smart electric energy meter with leakage remote monitoring and protection function, including shell, the inner wall of shell is fixedly connected with bottom plate, the upper end of bottom plate is fixedly connected with support block, and one end of support block is provided with fixing mechanism, and fixing mechanism includes shaft, the surface of shaft is fixedly connected with sphere, one end of sphere is provided with power-off mechanism, the lower end of sphere is provided with wrapping mechanism, and wrapping mechanism includes air bag, several small holes for ventilation and heat dissipation are opened in the inside of bottom plate, sponge is attached to the lower end of bottom plate, and the lower end of bottom plate is provided with sealing mechanism;By realizing leakage remote monitoring and quick power-off protection, power-off drives eccentric sphere rotation trigger air bag wrapping terminal at the same time, effectively dustproof and moistureproof;Synchronous sealing air hole, reduce the invasion of humidity dust, reduce short-circuit risk, prolong the life of electric meter, improve power safety and operation efficiency.

Description

Technical Field

[0001] This invention relates to the field of smart energy meter technology, specifically to a smart energy meter with remote leakage monitoring and protection functions. Background Technology

[0002] Smart meters with remote leakage current monitoring and protection are an upgrade from traditional smart meters. They not only possess basic energy metering, remote communication, and data transmission functions, but also integrate remote leakage current monitoring and protection. Through a built-in leakage current sampling circuit and low-voltage circuit breaker, these smart meters can monitor leakage current in the circuit in real time. When leakage is detected, they automatically cut off the power supply to prevent electrical accidents. They also transmit the leakage information remotely to the monitoring center or user terminal via a communication module, enabling remote monitoring and protection. These smart meters effectively reduce personal injury and property damage caused by leakage current, improving electrical safety.

[0003] Existing smart meters with remote leakage current monitoring and protection functions may experience circuit board short circuits or relay corrosion in humid environments, reducing device lifespan. Humid environments accelerate the oxidation of internal metal terminals, screws, and other components, leading to poor contact or increased resistance. Examples include electrical distribution rooms in basements and underground garages, as well as in living spaces like bathrooms and kitchens; food processing workshops; and electrical distribution areas in aquaculture farms. Some factory workshops have high humidity levels due to production processes, placing meters installed in these environments in a prolonged humid environment. Humidity degrades the internal insulation of the meter, especially at the terminals. If corrosion or moisture damages the insulation, current may leak into the casing or surrounding conductors, causing leakage. Contact with the electrified casing poses a risk of electric shock. Furthermore, leakage can cause circuit breaker tripping, increased energy consumption, and other safety hazards. Summary of the Invention

[0004] To address the problems in the prior art, this invention provides a smart energy meter with remote leakage monitoring and protection functions.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a smart energy meter with remote monitoring and protection function for leakage current, including a shell, a base plate fixedly connected to the inner wall of the shell, and a support block fixedly connected to the upper end of the base plate; One end of the support block is provided with a fixing mechanism for fixing the cable connector. The fixing mechanism includes a rotating shaft, and a ball is fixedly connected to the surface of the rotating shaft. The ball is made of rubber. One end of the sphere is equipped with a power-off mechanism to protect the electricity meter from leakage. The lower end of the sphere is equipped with a wrapping mechanism to wrap the energized contact point of the cable. The wrapping mechanism includes an airbag. Several small holes are opened inside the base plate for ventilation and heat dissipation. The lower end of the base plate is attached with sponge. The bottom of the base plate is equipped with a sealing mechanism to block the ventilation holes of the base plate.

[0006] Preferably, an arc-shaped terminal block is fixedly connected to the surface of the support block, and a fixing ring is also fixedly connected to the surface of the support block.

[0007] Preferably, the fixing mechanism includes a rotating shaft, which is rotatably connected to the support block. A ball is fixedly connected to the surface of the rotating shaft, a nut is engaged inside the ball, a hollow groove is opened inside the ball, a first terminal piece is fixedly connected to the surface of the ball, and a disc is fixedly connected to one end of the rotating shaft.

[0008] Preferably, the fixing mechanism further includes a rotating pin, the inside of the disc is rotatably connected to the rotating pin, and the surface of the hollow groove is fixedly connected to a second terminal piece.

[0009] Preferably, the power-off mechanism includes an electric push rod, the non-output end of which is mounted on the base plate, and the output end of which is fixedly connected to a sliding rod, with a guide rail fixedly connected to the upper end of the sliding rod.

[0010] Preferably, the wrapping mechanism includes a sleeve, the outer surface of which is fixedly connected to a support block, a piston is slidably connected inside the sleeve, and a connecting pipe is fixedly connected to one end of the sleeve, the surface of which is fixedly connected to a fixing ring.

[0011] Preferably, the packaging mechanism also includes an airbag, with one end of the connecting tube fixedly connected to the airbag.

[0012] Preferably, the sealing mechanism includes a connecting block, the upper end of which is fixedly connected to a sliding rod, the surface of which is slidably connected to a base plate, a rubber plate fixedly connected to the lower end of the connecting block, and a sponge fixedly connected to the upper end of the rubber plate.

[0013] The beneficial effects of this invention are: The present invention discloses a smart energy meter with remote leakage monitoring and protection functions. By realizing remote leakage monitoring and rapid power-off protection, the drive circuit starts the electric push rod to move upward. The upward movement of the electric push rod causes the rubber ball to rotate eccentrically. The eccentric rotation of the rubber ball not only moves the first terminal piece away from the arc-shaped terminal piece to achieve power-off, but also allows the first terminal piece to enter the center of the air bag. With the air bag tightly wrapping the cable connector, it effectively avoids contact with dust and moisture, prevents leakage caused by dust conducting electricity or hindering heat dissipation, and ensures the safety of electricity use.

[0014] The present invention discloses a smart energy meter with remote leakage monitoring and protection function. When the sliding rod moves upward, it drives the piston to compress the air in the sleeve, so that the air enters the nylon air bladder through the connecting pipe. The air bladder inflates and wraps the cable. Nylon material has good performance, moderate cost and is suitable for the space of the energy meter. The expansion of the air bladder can also fit tightly with the ball, enhance the sealing performance, effectively isolate dust and moisture, and provide reliable protection for the internal cable of the energy meter.

[0015] The present invention discloses a smart energy meter with remote leakage monitoring and protection function. By providing small holes in the base plate for ventilation and heat dissipation, when the sliding rod moves upward, it causes the rubber plate to adhere to the lower end of the base plate. The rubber plate seals the small holes, making the inside of the energy meter airtight. When the power is off and heat dissipation is not required, this design can reduce the influx of high humidity air, prevent moisture from corroding circuit components, reduce the risk of short circuits or poor contact after power is applied, and also reduce air circulation, effectively avoiding dust accumulation. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the shell and the base plate; Figure 3 This is a schematic diagram of the connection structure between the support block and the fixing ring; Figure 4 This is a schematic diagram of the connection structure between the support block and the sleeve; Figure 5 This is a cross-sectional view of the inside of a sphere. Figure 6 This is a schematic diagram of the connection structure between the rotating shaft and the sphere; Figure 7 A schematic diagram of the connection structure between the arc-shaped terminal block and the first terminal block; Figure 8 A schematic diagram of the connection structure between the guide rail and the rotating pin; Figure 9 This is a sectional view of the inside of the sleeve; Figure 10 This is a schematic diagram of the connection structure between the rubber sheet and the sponge; In the diagram: 100, shell; 200, base plate; 300, support block; 301, arc-shaped terminal block; 302, fixing ring; 400, fixing mechanism; 401, rotating shaft; 402, sphere; 4021, hollow groove; 403, nut; 404, first terminal block; 405, disc; 406, rotating pin; 407, second terminal block; 500, power-off mechanism; 501, electric push rod; 502, sliding rod; 503, guide rail; 600, wrapping mechanism; 601, sleeve; 602, piston; 603, connecting pipe; 604, airbag; 700, sealing mechanism; 701, connecting block; 702, rubber plate. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0019] like Figures 1-10 As shown, the smart energy meter with remote leakage monitoring and protection function of the present invention includes a housing 100, a base plate 200 fixedly connected to the inner wall of the housing 100, and a support block 300 fixedly connected to the upper end of the base plate 200. One end of the support block 300 is provided with a fixing mechanism 400 for fixing the cable connector. The fixing mechanism 400 includes a rotating shaft 401, and a ball 402 is fixedly connected to the surface of the rotating shaft 401. The ball 402 is made of rubber. One end of the sphere 402 is provided with a power-off mechanism 500 for leakage protection of the electricity meter, and the lower end of the sphere 402 is provided with a wrapping mechanism 600 for wrapping the power contact point of the cable. The wrapping mechanism 600 includes an airbag 604. Several small holes are opened inside the base plate 200 for ventilation and heat dissipation. A sponge 703 is attached to the lower end of the base plate 200. The lower end of the base plate 200 is provided with a sealing mechanism 700 to seal the ventilation holes of the base plate 200.

[0020] Specifically, an arc-shaped terminal block 301 is fixedly connected to the surface of the support block 300, and a fixing ring 302 is also fixedly connected to the surface of the support block 300.

[0021] Additionally, the fixing mechanism 400 includes a rotating shaft 401, which is rotatably connected to the support block 300. A ball 402 is fixedly connected to the surface of the rotating shaft 401, and a nut 403 is engaged inside the ball 402. A hollow groove 4021 is formed inside the ball 402, and a first terminal piece 404 is fixedly connected to the surface of the ball 402. A disc 405 is fixedly connected to one end of the rotating shaft 401, and a rotating pin 406 is rotatably connected inside the disc 405. A second terminal piece 407 is fixedly connected to the surface of the hollow groove 4021. When the nut 403 is rotated, it moves into the ball 402. This movement of the nut 403 into the ball 402 causes the second terminal piece 407 to move closer to the first terminal piece 404. The second terminal piece 407 and the first terminal piece 404 then fix the connection point of the cable.

[0022] Furthermore, when a leakage occurs in the circuit, a zero-sequence current is generated. The zero-sequence current transformer installed in the smart energy meter can sense this current signal and convert it into a voltage signal. The voltage signal is transmitted to the central processing unit (CPU) of the energy meter. The CPU processes and analyzes the signal and compares it with a preset leakage current threshold. If the signal exceeds the threshold, it indicates that there is a leakage. When the CPU determines that there is a leakage, it sends the leakage information to the communication module through the communication interface. The communication module then sends the leakage data to the remote master station according to the data communication protocol to realize the remote monitoring function. The remote master station receives and summarizes the data sent from each energy meter, stores, analyzes and manages it. Staff can view the leakage status of each user in real time through the remote master station, and promptly detect and eliminate leakage faults. After receiving the CPU's instruction, the drive circuit converts the weak current signal into a strong current signal that can drive the electric push rod 501 to work, controlling the extension and retraction of the push rod 501, thereby pushing the power-off structure inside the energy meter to achieve power-off.

[0023] It should be noted that the power-off mechanism 500 includes an electric push rod 501. The non-output end of the electric push rod 501 is mounted on the base plate 200. The output end of the electric push rod 501 is fixedly connected to a sliding rod 502, and the upper end of the sliding rod 502 is fixedly connected to a guide rail 503. When the drive circuit starts the electric push rod 501 to move upward, the upward movement of the electric push rod 501 will drive the sliding rod 502 to move upward, and the upward movement of the sliding rod 502 will drive the guide rail 503 to move upward. This will cause the rotating pin 406 to move upwards. The upward movement of the rotating pin 406 will cause the disc 405 to rotate. The rotation of the disc 405 will cause the rotating shaft 401 to rotate. The rotation of the rotating shaft 401 will cause the ball 402 to rotate. The ball 402 is made of rubber. The eccentric rotation of the ball 402 around the rotating shaft 401 will cause the first terminal piece 404 to move away from the arc-shaped terminal piece 301. The first terminal piece 404 moving away from the arc-shaped terminal piece 301 will cause the electricity meter to disconnect from the power supply. The outer surface of the ball 402 is hemispherical. The eccentric rotation of the ball 402 will drive the first terminal piece 404 into the center of the airbag 604. At the same time, the eccentric rotation of the ball 402 will generate a downward pressure, so that the lower surface of the ball 402 is tightly attached to the airbag 604. The airbag 604, together with the ball 402, will wrap the first terminal piece 404 at the cable connector, preventing dust and moisture from contacting the first terminal piece 404 and causing leakage. Dust itself is usually not conductive, but if too much dust accumulates, it will become a conductive medium after absorbing moisture from the air, which may form a leakage path between the circuit components and terminals inside the meter. In addition, a large amount of dust may also hinder heat dissipation, causing components to overheat, indirectly affecting insulation performance and increasing the possibility of leakage. The electric push rod 501 is activated by the drive circuit to move upward. The upward movement of the electric push rod 501 drives the rubber ball 402 to rotate eccentrically. The eccentric rotation of the rubber ball 402 not only moves the first terminal piece 404 away from the arc-shaped terminal piece 301 to achieve power disconnection, but also allows the first terminal piece 404 to enter the center of the air bag 604. With the air bag 604 tightly wrapping the cable connector, it effectively avoids contact with dust and moisture, prevents leakage caused by dust conducting electricity or hindering heat dissipation, and ensures the safety of electricity use by the electricity meter.

[0024] It is worth mentioning that the wrapping mechanism 600 includes a sleeve 601, the outer surface of which is fixedly connected to the support block 300. A piston 602 is slidably connected inside the sleeve 601. A connecting pipe 603 is fixedly connected to one end of the sleeve 601, and the surface of the connecting pipe 603 is fixedly connected to the fixing ring 302. An air bladder 604 is fixedly connected to one end of the connecting pipe 603. When the sliding rod 502 moves upward, it drives the piston 602 to move upward. The upward movement of the piston 602 compresses the air inside the sleeve 601. The air inside the sleeve 601 enters the connecting pipe 603, and the air inside the connecting pipe 603 enters the air bladder 604. The air bladder 604 is made of nylon, which has good insulation properties. With high mechanical strength, outstanding wear resistance, and good machinability, the airbag can be made into different shapes to adapt to the internal space layout of the electricity meter. The cost is relatively moderate. The airbag 604 inflates to wrap the cable. Simultaneously, the inflation of the airbag 604 further promotes a tight fit between the airbag 604 and the ball 402. The sliding rod 502 drives the piston 602 upwards, compressing the air inside the sleeve 601. This air then enters the nylon airbag 604 through the connecting pipe 603. The inflated airbag 604 wraps the cable. The nylon material offers excellent performance, moderate cost, and fits the space of the electricity meter. The inflation of the airbag 604 also ensures a tight fit with the ball 402, enhancing sealing and effectively isolating dust and moisture, providing reliable protection for the internal cables of the electricity meter.

[0025] Furthermore, the sealing mechanism 700 includes a connecting block 701. The upper end of the connecting block 701 is fixedly connected to the sliding rod 502, and the surface of the connecting block 701 is slidably connected to the base plate 200. A rubber plate 702 is fixedly connected to the lower end of the connecting block 701, and a sponge 703 is fixedly connected to the upper end of the rubber plate 702. Several small holes are opened inside the base plate 200, and the rubber plate 702 is provided at the lower end of the base plate 200. The several small holes inside the base plate 200 can play a role in ventilation and heat dissipation. When the sliding rod 502 moves upward, it will drive the connecting block 701 to move upward. The upward movement of the connecting block 701 will drive the rubber plate 702 to move upward. The upward movement of the rubber plate 702 will fit against the lower end of the base plate 200. The fit between the rubber plate 702 and the lower end of the base plate 200 can seal the several small holes inside the base plate 200, thereby sealing the internal environment of the electricity meter. When the vents are closed, it reduces the direct influx of high-humidity air into the meter, protecting the meter. In the power-off state, the meter requires no heat dissipation and consumes no power. Sealing the vents at this time better protects the circuit boards, terminals, and other components from moisture corrosion, reducing the risk of short circuits or poor contact when power is restored. It also significantly reduces airflow and prevents dust accumulation. Small holes in the base plate 200 allow for ventilation and heat dissipation. When the sliding rod 502 moves upward, it causes the rubber plate 702 to adhere to the lower end of the base plate 200. The rubber plate 702 seals the small holes, making the inside of the meter airtight. When power is off and heat dissipation is not required, this design reduces the influx of high-humidity air, preventing moisture corrosion of circuit components, reducing the risk of short circuits or poor contact after power is restored, and also reducing airflow, effectively preventing dust accumulation.

[0026] Working principle: When using this invention, the cable is inserted from the bottom of the airbag 604, exits from the top of the airbag 604, and is placed into the hollow groove 4021.

[0027] Rotating the nut 403 causes it to move into the ball 402. This movement of the nut 403 into the ball 402 causes the second terminal piece 407 to move closer to the first terminal piece 404. The second terminal piece 407 and the first terminal piece 404 then secure the connection point of the cable.

[0028] When a leakage occurs in the circuit, a zero-sequence current is generated. The zero-sequence current transformer installed in the smart energy meter can sense this current signal and convert it into a voltage signal. The voltage signal is transmitted to the central processing unit (CPU) of the energy meter. The CPU processes and analyzes the signal and compares it with a preset leakage current threshold. If the signal exceeds the threshold, it indicates that there is a leakage. When the CPU determines that there is a leakage, it sends the leakage information to the communication module through the communication interface. The communication module then sends the leakage data to the remote master station according to the data communication protocol to realize the remote monitoring function. The remote master station receives and summarizes the data sent from each energy meter, stores, analyzes and manages it. Staff can view the leakage status of each user in real time through the remote master station, and promptly detect and eliminate leakage faults. After receiving the CPU's instruction, the drive circuit converts the weak current signal into a strong current signal that can drive the electric push rod 501 to work, controlling the extension and retraction of the push rod 501, thereby pushing the power-off structure inside the energy meter to achieve power-off.

[0029] When the drive circuit activates the electric push rod 501 to move upward, the upward movement of the electric push rod 501 will drive the sliding rod 502 to move upward. The upward movement of the sliding rod 502 will drive the guide rail 503 to move upward. The upward movement of the guide rail 503 will drive the rotating pin 406 to move upward. The upward movement of the rotating pin 406 will drive the disc 405 to rotate. The rotation of the disc 405 will drive the rotating shaft 401 to rotate. The rotation of the rotating shaft 401 will drive the ball 402 to rotate. The ball 402 is made of rubber. The ball 402 rotates eccentrically around the rotating shaft 401. The eccentric rotation of the ball 402 will cause the first terminal piece 404 to move away from the arc-shaped terminal piece 301. The first terminal piece 404 moving away from the arc-shaped terminal piece 301 will cause the energy meter to disconnect from power. The outer surface of the ball 402 is hemispherical. The eccentric rotation of the ball 402 will drive the first terminal piece 404 into the center of the airbag 604. At the same time, the eccentric rotation of the ball 402 will generate a downward pressure, so that the lower surface of the ball 402 is tightly attached to the airbag 604. The airbag 604, together with the ball 402, will wrap the first terminal piece 404 at the cable connector, preventing dust and moisture from contacting the first terminal piece 404 and causing leakage. Dust itself is usually not conductive, but if too much dust accumulates, it will become a conductive medium after absorbing moisture from the air, which may form a leakage path between the circuit components and terminals inside the meter. In addition, a large amount of dust may also hinder heat dissipation, causing components to overheat, indirectly affecting insulation performance and increasing the possibility of leakage. The electric push rod 501 is activated by the drive circuit to move upward. The upward movement of the electric push rod 501 drives the rubber ball 402 to rotate eccentrically. The eccentric rotation of the rubber ball 402 not only moves the first terminal piece 404 away from the arc-shaped terminal piece 301 to achieve power disconnection, but also allows the first terminal piece 404 to enter the center of the air bag 604. With the air bag 604 tightly wrapping the cable connector, it effectively avoids contact with dust and moisture, prevents leakage caused by dust conducting electricity or hindering heat dissipation, and ensures the safety of electricity use by the electricity meter.

[0030] As the sliding rod 502 moves upward, it drives the piston 602 to move upward as well. The upward movement of the piston 602 compresses the air inside the sleeve 601. The air inside the sleeve 601 enters the connecting pipe 603, and then enters the airbag 604. The airbag 604 is made of nylon, which has good insulation, high mechanical strength, tensile and impact resistance, excellent wear resistance, and good machinability, allowing it to be made into airbags of different shapes to suit the internal space layout of the electricity meter. Furthermore, its cost is relatively moderate. The interior of the airbag 604... The airbag 604 inflates and wraps around the cable. As the airbag inflates, it further promotes a tighter fit between the airbag 604 and the ball 402. The sliding rod 502 drives the piston 602 upward to compress the air in the sleeve 601, allowing the air to enter the nylon airbag 604 through the connecting pipe 603. The airbag 604 inflates and wraps around the cable. Nylon material has good performance, moderate cost, and is suitable for the space of the electricity meter. The expansion of the airbag 604 can also make it fit tightly with the ball 402, enhancing the sealing performance and effectively isolating dust and moisture, providing reliable protection for the internal cables of the electricity meter.

[0031] The base plate 200 has several small holes inside, and a rubber plate 702 is installed at the lower end of the base plate 200. During normal operation, there is a certain distance between the base plate 200 and the rubber plate 702. The small holes inside the base plate 200 provide ventilation and heat dissipation. When the sliding rod 502 moves upward, it drives the connecting block 701 upward, which in turn drives the rubber plate 702 upward. The rubber plate 702 then comes into contact with the lower end of the base plate 200, sealing the small holes inside the base plate 200. This creates a sealed environment inside the energy meter, reducing the direct influx of high-humidity external air into the meter. Inside the meter, the energy meter is protected. In the power-off state, the meter does not need heat dissipation and has no power consumption. At this time, the sealed ventilation opening can better protect the circuit board, wiring terminals and other components from moisture corrosion, reduce the risk of short circuit or poor contact when power is restored, significantly reduce air circulation, and prevent dust accumulation. Small holes are provided in the base plate 200 for ventilation and heat dissipation. When the sliding rod 502 moves upward, it drives the rubber plate 702 to stick to the lower end of the base plate 200. The rubber plate 702 seals the small holes, making the inside of the energy meter airtight. When power is off and heat dissipation is not required, this design can reduce the influx of high humidity air, prevent moisture from corroding circuit components, reduce the risk of short circuit or poor contact after power is restored, and also reduce air circulation, effectively avoiding dust accumulation.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by the present invention. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart energy meter with remote leakage monitoring and protection function, comprising a housing (100), characterized in that: A base plate (200) is fixedly connected to the inner wall of the shell (100), and a support block (300) is fixedly connected to the upper end of the base plate (200). One end of the support block (300) is provided with a fixing mechanism (400) for fixing the cable connector. The fixing mechanism (400) includes a rotating shaft (401), and a ball (402) is fixedly connected to the surface of the rotating shaft (401). The ball (402) is made of rubber. The fixing mechanism (400) also includes a rotating pin (406), and the rotating pin (406) is rotatably connected inside the disc (405). A second terminal piece (407) is fixedly connected to the surface of the hollow groove (4021). One end of the sphere (402) is provided with a power-off mechanism (500) for leakage protection of the electricity meter, and the lower end of the sphere (402) is provided with a wrapping mechanism (600) for wrapping the power contact point of the cable. The wrapping mechanism (600) includes an airbag (604). Several small holes are opened inside the base plate (200) for ventilation and heat dissipation. The lower end of the base plate (200) is attached with a sponge (703). The lower end of the base plate (200) is provided with a sealing mechanism (700) to seal the ventilation holes of the base plate (200). An arc-shaped terminal block (301) is fixedly connected to the surface of the support block (300), and a fixing ring (302) is also fixedly connected to the surface of the support block (300). The power-off mechanism (500) includes an electric push rod (501), the non-output end of the electric push rod (501) is mounted on the base plate (200), the output end of the electric push rod (501) is fixedly connected to a sliding rod (502), and the upper end of the sliding rod (502) is fixedly connected to a guide rail (503). The wrapping mechanism (600) includes a sleeve (601), the outer surface of the sleeve (601) is fixedly connected to the support block (300), a piston (602) is slidably connected inside the sleeve (601), a connecting pipe (603) is fixedly connected to one end of the sleeve (601), and the surface of the connecting pipe (603) is fixedly connected to the fixing ring (302).

2. The smart energy meter with remote leakage monitoring and protection function according to claim 1, characterized in that: The rotating shaft (401) is rotatably connected to the support block (300), the sphere (402) is fitted with a nut (403), the sphere (402) has a hollow groove (4021) inside, the surface of the sphere (402) is fixedly connected to a first terminal piece (404), and one end of the rotating shaft (401) is fixedly connected to a disc (405).

3. A smart energy meter with remote leakage monitoring and protection function according to claim 1, characterized in that: An airbag (604) is fixedly connected to one end of the connecting tube (603).

4. A smart energy meter with remote leakage monitoring and protection function according to claim 3, characterized in that: The sealing mechanism (700) includes a connecting block (701), the upper end of the connecting block (701) is fixedly connected to the sliding rod (502), the surface of the connecting block (701) is slidably connected to the base plate (200), the lower end of the connecting block (701) is fixedly connected to a rubber plate (702), and the upper end of the rubber plate (702) is fixedly connected to a sponge (703).

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