A safe and fireproof smart electric meter

Abstract

The present invention discloses a safe and fireproof smart meter, which relates to the technical field of smart meter safety, and comprises a meter mechanism, wherein the meter mechanism comprises a mounting plate, a meter body is fixedly connected to the left side of the mounting plate, two mounting frames are fixedly connected to the right side of the mounting plate, a mounting groove is provided on the right side of each mounting frame, a protective mechanism is arranged above the meter body, the protective mechanism comprises a fireproof isolation unit, and the fireproof isolation unit is arranged above the mounting plate. The safe and fireproof smart meter can protect the meter body in time when a fire occurs around the meter body or abnormally high temperature occurs, and the ceramic cover made of ceramic material has good high temperature resistance and insulation, so as to effectively isolate the influence of external arc and open flame on the meter body, and prevent the influence of other smart meters or other equipment in the external shell on the meter body after fire occurs, thereby effectively increasing the safety protection effect of the smart meter itself.

Description

Technical Field

[0001] The present invention relates to the technical field of safety protection of smart electric meters, in particular to a safe and fireproof smart electric meter. Background Art

[0002] Smart meters are one of the basic devices for data collection in smart grids. They are responsible for collecting, measuring and transmitting raw electric energy data, and are the basis for realizing information integration, analysis optimization and information display. In addition to the basic electricity consumption metering function of traditional electric energy meters, in order to adapt to the use of smart grids and new energy, smart meters also have two-way multi-rate metering functions, user-side control functions, two-way data communication functions with multiple data transmission modes, anti-electricity theft functions and other intelligent functions. Since smart meters have more sophisticated electronic facilities inside, in order to increase the safety of smart meters when used outdoors, it is usually necessary to use safety protection structures, such as external shells, rain shields and safety locks to protect smart meters.

[0003] However, smart meters usually only use the external shell to block the high temperature of external open flames. The safety and fire protection effect of smart meters themselves is poor, especially the open flame caused by a short circuit at the wiring. Since the open flame is generated from the inside of the smart meter, it will quickly burn the precision facilities inside the smart meter. The existing safety fire extinguishing measures of smart meters only cut off the power supply by tripping to prevent problems with the back-end equipment of the smart meter. The lack of safety and fire protection measures for the smart meters themselves makes it easy for smart meters to be directly burned by open flames or directly damaged by continuous electric arcs generated at the wiring. At the same time, after a smart meter catches fire, it is easy to ignite other smart meters installed in the external shell, resulting in poor safety and fire protection effect of the smart meter itself, affecting the overall service life of the smart meter.

[0004] Combining the above problems, we will find that it is difficult to avoid the above problems at the same time when using the existing smart meters, and even if they can be solved, they need to be solved through external tools, which cannot achieve the desired effect. Therefore, we propose a safe and fireproof smart meter. Summary of the invention

[0005] The purpose of the present invention is to provide a safe and fireproof smart electric meter to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a safe and fireproof smart meter, comprising a meter mechanism, the meter mechanism comprising a mounting plate, the left side of the mounting plate is fixedly connected to a meter body, the right side of the mounting plate is fixedly connected to two mounting brackets, the right side of each mounting bracket is provided with a mounting groove, and a protective mechanism is arranged above the meter body;

[0007] The protection mechanism includes a fireproof isolation unit, which is arranged above the mounting plate and is used to isolate the fire source from the electric meter body;

[0008] The protection mechanism further comprises a fire-proof cut-off unit, which is arranged below the meter body and is used to cut off the power supply of the meter body after a fire occurs;

[0009] A fire extinguishing mechanism is arranged on the right side of the fire-proof cut-off unit, and the fire extinguishing mechanism can assist in isolating the meter body and extinguishing the open flame of the meter body itself.

[0010] Preferably, the fireproof isolation unit includes a ceramic cover, which is located above the meter body, the right side of the ceramic cover is in contact with the left side of the mounting plate, and the left side of the mounting plate is provided with two sliding grooves, the inner bottom walls of the two sliding grooves are fixedly connected with compression springs, the other ends of the two compression springs are fixedly connected with sliding blocks, the two sliding blocks are slidably connected to the inside of the sliding grooves, the left sides of the two sliding blocks are fixedly connected to the right side of the ceramic cover, the upper surface of the mounting plate is fixedly connected with a fixing frame, the right side of the ceramic cover is in contact with the left side of the fixing frame, and the left side of the fixing frame is slidably connected with two first limiting iron blocks, the upper surfaces of the two first limiting iron blocks are in contact with the inner top wall of the ceramic cover, and the two Two first return springs are fixedly connected to the right side surface of the first limiting iron block, and the right end of each of the first return springs is fixedly connected to the inner wall of the fixing frame, and the inner wall of the fixing frame is fixedly connected to two first iron cores, and the two first iron cores are located on the right side of the first limiting iron block, and the outer surfaces of the two first iron cores are wound with first energized coils, and the bottom surface of the meter body is fixedly connected to a power socket, and the inner wall of the power socket is fixedly connected to two conductive frames, each of the conductive frames is electrically connected to the meter body through a wire, and the front and back sides of the power socket are fixedly connected to thermal switches, and the power connection ends of the two thermal switches are fixedly connected to connecting wires, and the other ends of the two connecting wires pass through the mounting plate and are electrically connected to the first energized coils.

[0011] Preferably, two reinforcement blocks are fixedly connected to the right side surface of the mounting plate, and the upper surface of each reinforcement block is fixedly connected to the bottom surface of the fixing frame.

[0012] Preferably, the fire-proof cut-off unit includes a ceramic seat, which is located below the electric meter body; a bearing plate is slidably connected to the inside of the ceramic seat; two bearing springs are fixedly connected to the bottom surface of the bearing plate; the bottom ends of the two bearing springs are fixedly connected to the inner bottom wall of the ceramic seat; the upper surface of the bearing plate is fixedly connected to a connecting frame; two conductive springs are fixedly connected to the upper surface of the connecting frame; the two conductive springs are clamped inside the conductive frame; the bottom surfaces of the two conductive springs are fixedly connected to a conductive plate; the two conductive plates are clamped inside the connecting frame; two auxiliary grooves are provided on the left side of the ceramic seat; the two conductive plates are slidably connected inside the auxiliary grooves; a positioning block is fixedly connected to the bottom surface of the bearing plate; the right side of the ceramic seat The surface is fixedly connected with an auxiliary frame, and the right side surface of the ceramic seat is slidably connected with a second limiting iron block, the second limiting iron block is located inside the auxiliary frame, the upper surface of the second limiting iron block contacts with the bottom surface of the positioning block, the right side surface of the second limiting iron block is fixedly connected with a connecting plate, the right side surface of the connecting plate is fixedly connected with two second return springs, the other ends of the two second return springs are fixedly connected to the inner side wall of the auxiliary frame, the inner side wall of the auxiliary frame is fixedly connected with a second iron core, the second iron core is located on the right side of the connecting plate, the outer surface of the second iron core is wound with a second energized coil, the inner top wall of the ceramic cover is fixedly connected with a pressing plate, the upper surface of the meter body is fixedly connected with a contact switch, and the contact switch is electrically connected to the second energized coil through a wire.

[0013] Preferably, a limiting ring is fixedly connected to the inner wall of the ceramic seat, and a through groove is formed on the right side surface of the limiting ring.

[0014] Preferably, four isolation plates are fixedly connected to the left side of the ceramic seat, two of the conductive plates are located between each group of isolation plates, and the number of isolation plates in each group is two.

[0015] Preferably, an alarm light and a buzzer are fixedly embedded on the left side of the mounting plate, respectively. The alarm light and the buzzer are both located above the meter body, and the alarm light and the buzzer are both electrically connected to the contact switch through a wire.

[0016] Preferably, the fire extinguishing mechanism includes a positioning frame, the upper surface of the positioning frame is fixedly connected to the bottom surface of the mounting plate, the left side of the positioning frame is fixedly connected to the right side of the ceramic seat, the upper surface of the auxiliary frame is fixedly connected to the bottom surface of the positioning frame, the inner wall of the positioning frame is slidably connected with a ceramic plate, the left side of the ceramic plate is in contact with the right side of the connecting frame, the inner side wall of the ceramic plate is fixedly connected with a push spring, the other end of the push spring is fixedly connected to the inner side wall of the positioning frame, a storage cavity is opened inside the mounting plate, the inner side wall of the storage cavity is fixedly connected with a storage tank, the bottom surface of the storage tank is fixedly connected with a solenoid valve, the solenoid valve is electrically connected to a contact switch through a wire, the output end of the solenoid valve is fixedly connected with a multi-way pipe, and multiple water outlets of the multi-way pipe all penetrate the mounting plate and extend to the left side of the mounting plate.

[0017] Preferably, the front side of the storage tank is fixedly connected with an inflation pipe, and the other end of the inflation pipe passes through the mounting plate and is fixedly connected with a one-way valve.

[0018] Preferably, telescopic rods are provided inside the two push springs, the telescopic ends of the two telescopic rods are fixedly connected to the inner wall of the ceramic plate, and the right ends of the two telescopic rods are fixedly connected to the inner wall of the positioning frame.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention provides a fireproof isolation unit to protect the meter body in time when a fire occurs around the meter body or abnormally high temperature occurs. The ceramic cover has good high temperature resistance and insulation properties, which can effectively isolate the meter body from external arcs and open flames, and prevent other smart meters or other equipment installed in the external shell from catching fire and affecting the meter body, thereby effectively increasing the safety protection effect of the smart meter itself.

[0021] 2. The present invention provides a fire-proof cut-off unit, which can cut off the external power line from the meter body when sparks or open flames appear at the power connection position of the meter body due to problems such as short circuit, so as to prevent the internal precision facilities of the smart meter from being excessively damaged, so that the electric spark can be quickly extinguished by power failure and the open flame also loses its heat source accordingly, further increasing the safety and fire prevention measures of the smart meter itself, making the safety and fire prevention effect of the smart meter more superior.

[0022] 3. The present invention can further isolate and protect the meter body after the power supply of the meter body is disconnected by setting a fire extinguishing mechanism, so that the external open flame and high temperature are less likely to cause excessive impact on the meter body, so that the smart meter only needs to replace the power connection position after a short circuit fire, without replacing the entire smart meter, and the fire extinguishing mechanism can release carbon dioxide fire extinguishing gas to the outside of the isolated meter body, and use the compressed carbon dioxide gas to reduce the temperature of the meter body itself, so that the meter body that has caught fire can be quickly extinguished and the temperature can be reduced, making the internal precision facilities of the smart meter less susceptible to damage by open flames and high temperatures, further improving the safety and fire prevention effect of the smart meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic cross-sectional structural diagram of the ceramic cover of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the mounting plate of the present invention;

[0026] Figure 4 It is a schematic cross-sectional structural diagram of the fixing frame of the present invention;

[0027] Figure 5 It is a schematic cross-sectional view of the power socket of the present invention;

[0028] Figure 6 It is a schematic cross-sectional structural diagram of the positioning frame of the present invention;

[0029] Figure 7 is a schematic cross-sectional structural diagram of the ceramic seat of the present invention;

[0030] Figure 8 It is a schematic cross-sectional structural diagram of the auxiliary frame of the present invention;

[0031] Fig. 9 It is a schematic cross-sectional structural diagram of the mounting plate of the present invention.

[0032] In the figure: 1. Meter mechanism; 11. Mounting plate; 12. Meter body; 13. Mounting frame; 14. Mounting slot; 2. Protection mechanism; 21. Fireproof isolation unit; 2101. Ceramic cover; 2102. Sliding slot; 2103. Compression spring; 2104. Sliding block; 2105. Fixed frame; 2106. First limit iron block; 2107. First return spring; 2108. First iron core; 2109. First energized coil; 2110. Electric socket; 2111. Conductive frame; 2112. Thermal switch; 2113. Connecting wire; 2114. Reinforcement block; 22. Fireproof cut-off unit; 2201. Ceramic socket; 2202. Loading plate; 2203. Loading spring; 2204. Connecting frame; 2205. Conductive spring; 2206, conductive plate; 2207, isolation plate; 2208, positioning block; 2209, auxiliary frame; 2210, second limiting iron block; 2211, connecting plate; 2212, second return spring; 2213, second iron core; 2214, second energized coil; 2215, push plate; 2216, contact switch; 2217, limiting ring; 2218, through slot; 2219, alarm light; 2220, buzzer; 2221, auxiliary slot; 3, fire extinguishing mechanism; 301, positioning frame; 302, ceramic plate; 303, push spring; 304, storage chamber; 305, storage tank; 306, solenoid valve; 307, multi-way pipe; 308, inflation pipe; 309, one-way valve; 310, telescopic rod. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The present invention provides a technical solution: a safe and fireproof smart meter, comprising a meter mechanism 1, the meter mechanism 1 comprising a mounting plate 11, a meter body 12 is fixedly connected to the left side of the mounting plate 11, two mounting brackets 13 are fixedly connected to the right side of the mounting plate 11, and a mounting groove 14 is provided on the right side of each mounting bracket 13, and a protective mechanism 2 is arranged above the meter body 12;

[0035] The protection mechanism 2 includes a fireproof isolation unit 21 . The fireproof isolation unit 21 is disposed above the mounting plate 11 . The fireproof isolation unit 21 is used to isolate a fire source from the electric meter body 12 .

[0036] As a further limitation of the protection mechanism 2 of the present invention, the fireproof isolation unit 21 includes a ceramic cover 2101, the ceramic cover 2101 is located above the meter body 12, the right side of the ceramic cover 2101 is in contact with the left side of the mounting plate 11, and the left side of the mounting plate 11 is provided with two sliding grooves 2102, the inner bottom walls of the two sliding grooves 2102 are fixedly connected with compression springs 2103, the other ends of the two compression springs 2103 are fixedly connected with sliding blocks 2104, the two sliding blocks 2104 are slidably connected to the inside of the sliding groove 2102, and the left sides of the two sliding blocks 2104 are in contact with the ceramic The right side of the cover 2101 is fixedly connected, and the upper surface of the mounting plate 11 is fixedly connected with a fixing frame 2105. The right side of the ceramic cover 2101 contacts the left side of the fixing frame 2105. The left side of the fixing frame 2105 is slidably connected with two first limiting iron blocks 2106. The upper surfaces of the two first limiting iron blocks 2106 are in contact with the inner top wall of the ceramic cover 2101. The right sides of the two first limiting iron blocks 2106 are fixedly connected with two first return springs 2107. The right end of each first return spring 2107 is fixedly connected to the inner wall of the fixing frame 2105. The fixing frame 2105 The inner wall of the electric meter body 12 is fixedly connected to two first iron cores 2108, and the two first iron cores 2108 are both located on the right side of the first limiting iron block 2106. The outer surfaces of the two first iron cores 2108 are both wound with first energized coils 2109. The bottom surface of the electric meter body 12 is fixedly connected to a power socket 2110, and the inner wall of the power socket 2110 is fixedly connected to two conductive frames 2111, each conductive frame 2111 is electrically connected to the electric meter body 12 through a wire, and the front and back sides of the power socket 2110 are fixedly connected to thermal switches 2112, and the power connection ends of the two thermal switches 2112 are fixedly connected to connecting wires. 2113, the other ends of the two connecting wires 2113 both penetrate the mounting plate 11 and are electrically connected to the first energized coil 2109. By setting the fireproof isolation unit 21, the meter body 12 can be protected in time when a fire or abnormally high temperature occurs around the meter body 12. The ceramic cover 2101 made of ceramic material has good high temperature resistance and insulation properties, which can effectively isolate the influence of external arcs and open flames on the meter body 12, and prevent other smart meters or other equipment arranged and installed in the external shell from catching fire and affecting the meter body 12, thereby effectively increasing the safety protection effect of the smart meter itself;

[0037] Two reinforcement blocks 2114 are fixedly connected to the right side of the mounting plate 11, and the upper surface of each reinforcement block 2114 is fixedly connected to the bottom surface of the fixing frame 2105. The reinforcement block 2114 can increase the connection firmness between the fixing frame 2105 and the mounting plate 11, making it difficult for the fixing frame 2105 to loosen, thereby increasing the bearing capacity of the fixing frame 2105.

[0038] The specific implementation method of this embodiment is as follows: first, the mounting frame 13 is used in conjunction with the mounting slot 14 and bolts and other fixing parts to fix the mounting plate 11 and the meter body 12 inside the meter box. The meter body 12 is a smart meter. In addition to the basic electricity consumption metering function of a traditional energy meter, in order to adapt to the use of smart grids and new energy, it also has two-way multi-rate metering function, user-side control function, two-way data communication function of multiple data transmission modes and anti-electricity theft function and other intelligent functions. Then, the external power line is connected to the thermal switch 2112 and the first energized coil 2109. When the power connection point of the power socket 2110 below the meter body 12 or other facilities outside the meter body 12 catch fire due to short-circuit arc or other reasons, the thermal switch 2112 cooperates with the connecting wire 2113 to use the different thermal expansion coefficients of the component layers of the bimetallic strip. When the temperature changes, the deformation of the active layer is greater than the deformation of the passive layer, so that the bimetallic strip as a whole will bend toward the passive layer. The curvature of the composite material changes, thereby generating the deformation characteristic to realize the current switching, so that the first energized coil 2109 is energized, and the first energized coil 2109 is wound around the first iron core 2 108 outside, and then using the electromagnetic conversion principle, when the first power-on coil 2109 is energized, the first iron core 2108 can generate magnetic force. At this time, the magnetic force generated by the first iron core 2108 can absorb the first limiting iron block 2106, so that the first limiting iron block 2106 moves to the right and forces the first return spring 2107 to contract, so that the first limiting iron block 2106 is out of contact with the ceramic cover 2101, and the limit on the ceramic cover 2101 is released. Then, the elastic force provided by the compression spring 2103 cooperates with the sliding block 2104 to slide inside the sliding groove 2102, and the ceramic cover 2101 can be pulled. Move downward quickly until the inner top wall of the ceramic cover 2101 contacts the upper surface of the meter body 12. At this time, the meter body 12 can be completely covered to isolate the meter body 12 from external electric arcs, open flames and high temperatures, and the meter body 12 can be protected in time. The ceramic cover 2101 made of ceramic material has good high temperature resistance and insulation properties, which can effectively isolate the influence of external electric arcs and open flames on the meter body 12, and prevent other smart meters or other equipment installed in the external shell from catching fire and affecting the meter body 12, thereby effectively increasing the safety protection effect of the smart meter itself.

[0039] Example 2: Please refer to Figure 2 , Figure 3 , Figure 5 , Figure 7 and Figure 8 The present invention provides a technical solution: a safe and fireproof smart meter. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. The protection mechanism 2 also includes a fire cut-off unit 22, which is arranged below the meter body 12. The fire cut-off unit 22 is used to disconnect the power supply of the meter body 12 after a fire occurs.

[0040] As a further limitation of the protection mechanism 2 of the present invention, the fire cut-off unit 22 includes a ceramic seat 2201, which is located below the electric meter body 12. The ceramic seat 2201 is internally slidably connected to a load-bearing plate 2202, and the bottom surface of the load-bearing plate 2202 is fixedly connected to two load-bearing springs 2203. The bottom ends of the two load-bearing springs 2203 are fixedly connected to the inner bottom wall of the ceramic seat 2201. The upper surface of the load-bearing plate 2202 is fixedly connected to a connecting frame 2204, and the upper surface of the connecting frame 2204 is fixedly connected to two conductive springs 2205, and the two conductive springs 2205 are both clamped on the conductive frame 2111, the bottom surfaces of the two conductive springs 2205 are fixedly connected with conductive plates 2206, and the two conductive plates 2206 are both clamped in the inside of the connecting frame 2204. The left side of the ceramic seat 2201 is provided with two auxiliary grooves 2221, and the two conductive plates 2206 are slidably connected in the inside of the auxiliary grooves 2221. The bottom surface of the bearing plate 2202 is fixedly connected with a positioning block 2208, and the right side of the ceramic seat 2201 is fixedly connected with an auxiliary frame 2209. The right side of the ceramic seat 2201 is slidably connected with a second limiting iron block 2210, and the second limiting iron block 2210 is located at the auxiliary frame 2209. Inside, the upper surface of the second limiting iron block 2210 contacts the bottom surface of the positioning block 2208, the right side surface of the second limiting iron block 2210 is fixedly connected with a connecting plate 2211, the right side surface of the connecting plate 2211 is fixedly connected with two second return springs 2212, the other ends of the two second return springs 2212 are fixedly connected to the inner side wall of the auxiliary frame 2209, the inner side wall of the auxiliary frame 2209 is fixedly connected with a second iron core 2213, the second iron core 2213 is located on the right side of the connecting plate 2211, the outer surface of the second iron core 2213 is wound with a second energized coil 2214, the inner surface of the ceramic cover 2101 A push plate 2215 is fixedly connected to the top wall, and a contact switch 2216 is fixedly connected to the upper surface of the meter body 12. The contact switch 2216 is electrically connected to the second energized coil 2214 through a wire. By setting the fire-proof cut-off unit 22, when sparks or open flames appear at the power connection position of the meter body 12 due to a short circuit or other problems, the external power line and the meter body 12 can be cut off to prevent the internal precision facilities of the smart meter from being excessively damaged, so that the electric spark can be quickly extinguished by power off and the open flame also loses its heat source accordingly, further increasing the safety and fire prevention measures of the smart meter itself, making the safety and fire prevention effect of the smart meter more superior;

[0041] The inner wall of the ceramic seat 2201 is fixedly connected to a limit ring 2217, and a through groove 2218 is provided on the right side of the limit ring 2217. The limit ring 2217 can limit the distance that the bearing plate 2202 slides downward inside the ceramic seat 2201, and the opposite force is applied to the rebound of the bearing spring 2203, so that the bearing spring 2203 is always kept tense, thereby reducing the shock of the bearing spring 2203 when rebounding. The through groove 2218 can prevent the limit ring 2217 from affecting the movement of the positioning block 2208;

[0042] Four isolation plates 2207 are fixedly connected to the left side of the ceramic seat 2201. Two conductive plates 2206 are located between each group of isolation plates 2207. There are two isolation plates 2207 in each group. The isolation plates 2207 can isolate the two conductive plates 2206 to prevent the two conductive plates 2206 from being too close to each other and causing arcs, thereby increasing the safety of the conductive plates 2206.

[0043] The left side of the mounting plate 11 is respectively fixedly inlaid with an alarm light 2219 and a buzzer 2220, both of which are located above the meter body 12, and are electrically connected to the contact switch 2216 via wires, and are controlled by the contact switch 2216. When the contact switch 2216 is closed, the alarm light 2219 and the buzzer 2220 start working, which can remind and facilitate maintenance personnel to find the smart meter with problems.

[0044] The specific implementation method of this embodiment is as follows: first, the second energized coil 2214, the contact switch 2216, the alarm light 2219 and the buzzer 2220 are connected to the external power supply, and then the power line to be charged is connected to the conductive plate 2206, and the conductive spring 2205 is used in conjunction with the connecting frame 2204 and the power socket 2110, so that the charging current can be sent to the meter body 12 through the conductive spring 2205 and the conductive frame 2111, and then another wire is used to connect the meter body 12 to the rear-end electrical equipment through the through hole on the mounting plate 11, so as to realize the charging of the electrical equipment. When the ceramic cover 2101 covers the meter body 12, the push plate 2215 will contact the contact switch 2216 to close the contact switch 2216, thereby energizing the second power-on coil 2214. Similarly, by using the electromagnetic conversion principle, when the second power-on coil 2214 is energized, the second iron core 2213 can generate magnetic force. At this time, the magnetic force generated by the second iron core 2213 can absorb the second limiting iron block 2210, so that the second limiting iron block 2210 moves to the right and forces the second reset spring 2212 to contract, and the second limiting iron block 2210 is out of contact with the positioning block 2208, thereby releasing the electric current. In addition to limiting the position of the carrier plate 2202, the elastic force provided by the carrier spring 2203 will pull the carrier plate 2202 and the connecting frame 2204 downward into the ceramic seat 2201 until the bottom surface of the carrier plate 2202 contacts the limiting ring 2217 and the positioning block 2208 is inserted into the through groove 2218. At this time, the conductive spring 2205 will also be separated from the conductive frame 2111, thereby cutting off the billing current so that it will not continue to flow into the meter body 12. Therefore, when sparks or open flames appear at the power connection position of the meter body 12 due to problems such as short circuit, the external power line can be cut off from the meter body 12 to prevent the smart meter from being damaged. The precision facilities are excessively damaged, so that the electric spark can be quickly extinguished by power off and the open flame also loses its heat source accordingly, further increasing the safety and fire prevention measures of the smart meter itself, making the safety and fire prevention effect of the smart meter more superior. At the same time, because the ceramic cover 2101 covers the meter body 12, the alarm light 2219 and the buzzer 2220 will be exposed, and the alarm light 2219 and the buzzer 2220 are controlled by the contact switch 2216. When the contact switch 2216 is closed, the alarm light 2219 and the buzzer 2220 will also start working, which can facilitate maintenance personnel to find the smart meter with problems.

[0045] Example 3: Please refer to Figure 5 , Figure 6 and Fig. 9 The present invention provides a technical solution: a safe fireproof smart meter. The present invention makes corresponding improvements to the technical problems mentioned in the background technology. A fire extinguishing mechanism 3 is arranged on the right side of the fire cut-off unit 22. The fire extinguishing mechanism 3 can assist in isolating the meter body 12 and extinguishing the open flame of the meter body 12 itself.

[0046] As a further limitation of the fire extinguishing mechanism 3 of the present invention, the fire extinguishing mechanism 3 includes a positioning frame 301, the upper surface of the positioning frame 301 is fixedly connected to the bottom surface of the mounting plate 11, the left side of the positioning frame 301 is fixedly connected to the right side of the ceramic seat 2201, the upper surface of the auxiliary frame 2209 is fixedly connected to the bottom surface of the positioning frame 301, the inner wall of the positioning frame 301 is slidably connected with a ceramic plate 302, the left side of the ceramic plate 302 is in contact with the right side of the connecting frame 2204, the inner wall of the ceramic plate 302 is fixedly connected with a push spring 303, the other end of the push spring 303 is fixedly connected to the inner wall of the positioning frame 301, a storage cavity 304 is opened inside the mounting plate 11, the inner wall of the storage cavity 304 is fixedly connected with a storage tank 305, the bottom surface of the storage tank 305 is fixedly connected with an electromagnetic valve 306, and the electromagnetic valve 306 is electrically connected to the contact switch 2216 through a wire. The output end of the solenoid valve 306 is fixedly connected to a multi-way pipe 307, and multiple water outlets of the multi-way pipe 307 all penetrate the mounting plate 11 and extend to the left side of the mounting plate 11. By setting the fire extinguishing mechanism 3, the meter body 12 can be further isolated and protected after the meter body 12 is disconnected from the power supply, so that the external open flame and high temperature are less likely to cause excessive impact on the meter body 12, so that the smart meter only needs to change the power connection position after a short circuit fire, and there is no need to replace the entire smart meter, and the fire extinguishing mechanism 3 can release carbon dioxide fire extinguishing gas to the outside of the isolated meter body 12, and use the compressed carbon dioxide gas to reduce the temperature of the meter body 12 itself, so that the meter body 12 that has caught fire can be quickly extinguished and the temperature can be reduced, so that the precision facilities inside the smart meter are less likely to be damaged by open flames and high temperatures, and the safety and fire prevention effect of the smart meter is further improved;

[0047] The front of the storage tank 305 is fixedly connected with an air filling pipe 308, and the other end of the air filling pipe 308 passes through the mounting plate 11 and is fixedly connected with a one-way valve 309. The air filling pipe 308 cooperates with the one-way valve 309 to facilitate the user to fill the carbon dioxide gas into the storage tank 305 through the air pump, so that the carbon dioxide gas inside the storage tank 305 is always filled;

[0048] A telescopic rod 310 is provided inside the two push springs 303. The telescopic ends of the two telescopic rods 310 are fixedly connected to the inner wall of the ceramic plate 302. The right ends of the two telescopic rods 310 are fixedly connected to the inner wall of the positioning frame 301. The telescopic rod 310 can prevent the push spring 303 from excessive displacement, increase the telescopic stability of the push spring 303, and ensure the reliability of the use of the push spring 303.

[0049] The specific implementation method of this embodiment is as follows: when the connecting frame 2204 drives the conductive spring 2205 to retract into the ceramic seat 2201, the connecting frame 2204 will also release the limit on the ceramic plate 302, and then use the elastic force of the pushing spring 303 to push the ceramic plate 302 out of the positioning frame 301, so that the ceramic plate 302 is quickly located between the conductive spring 2205 and the conductive frame 2111, and the arc between the conductive spring 2205 and the conductive frame 2111 is extinguished. At the same time, the bottom surface of the ceramic plate 302 will contact the ceramic seat 2201, further extinguishing the arc between the two conductive springs 2205, and the upper surface of the ceramic plate 302 will contact the bottom surface of the ceramic cover 2101 after moving downward, further increasing the isolation and protection effect of the ceramic cover 2101 on the meter body 12, so that the meter body 12 can be in a relatively closed safe space at this time, and then the meter body 12 can be further isolated and protected after the power supply of the meter body 12 is disconnected, so that the external open flame and High temperature is less likely to cause excessive impact on the meter body 12, so that the smart meter only needs to replace the power connection position after a short circuit fire, without replacing the entire smart meter. Finally, the solenoid valve 306 is also controlled by the contact switch 2216, and then when the meter body 12 is protected by the ceramic cover 2101 and the ceramic plate 302, the solenoid valve 306 will also open, allowing the high-pressure carbon dioxide gas stored in the storage tank 305 to cooperate with the storage cavity 304 and the multi-way tube 307, and be sent into and quickly fill the relatively closed space formed by the ceramic cover 2101 and the ceramic plate 302, and use the carbon dioxide gas to quickly extinguish the open flame on the meter body 12, and use the low temperature carried by the compressed carbon dioxide gas itself to reduce the temperature of the meter body 12 itself, so that the meter body 12 that has caught fire can be quickly extinguished and the temperature can be reduced, making the internal precision facilities of the smart meter less susceptible to damage by open flames and high temperatures, further improving the safety and fire prevention effect of the smart meter.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safe and fireproof smart meter, comprising a meter mechanism, characterized in that: The electric meter mechanism comprises a mounting plate, the left side of the mounting plate is fixedly connected to the electric meter body, the right side of the mounting plate is fixedly connected to two mounting brackets, the right side of each mounting bracket is provided with a mounting groove, and a protective mechanism is arranged above the electric meter body; The protection mechanism includes a fireproof isolation unit, which is arranged above the mounting plate and is used to isolate the fire source from the electric meter body; The protection mechanism further comprises a fire-proof cut-off unit, which is arranged below the meter body and is used to cut off the power supply of the meter body after a fire occurs; A fire extinguishing mechanism is provided on the right side of the fire-proof cut-off unit, and the fire extinguishing mechanism can assist in isolating the meter body and extinguishing the open flame of the meter body itself; The fireproof isolation unit includes a ceramic cover, which is located above the meter body, the right side of the ceramic cover is in contact with the left side of the mounting plate, and the left side of the mounting plate is provided with two sliding grooves, the inner bottom walls of the two sliding grooves are fixedly connected with compression springs, the other ends of the two compression springs are fixedly connected with sliding blocks, the two sliding blocks are slidably connected to the inside of the sliding grooves, the left sides of the two sliding blocks are fixedly connected to the right side of the ceramic cover, the upper surface of the mounting plate is fixedly connected with a fixing frame, the right side of the ceramic cover is in contact with the left side of the fixing frame, and the left side of the fixing frame is slidably connected with two first limiting iron blocks, the upper surfaces of the two first limiting iron blocks are in contact with the inner top wall of the ceramic cover, and the two Two first return springs are fixedly connected to the right side surface of the first limiting iron block, and the right end of each of the first return springs is fixedly connected to the inner side wall of the fixing frame, and the inner side wall of the fixing frame is fixedly connected to two first iron cores, and the two first iron cores are located on the right side of the first limiting iron block, and the outer surfaces of the two first iron cores are wound with first energized coils, and the bottom surface of the meter body is fixedly connected to an electricity connection socket, and the inner wall of the electricity connection socket is fixedly connected to two conductive frames, each of the conductive frames is electrically connected to the meter body through a wire, and the front and back sides of the electricity connection socket are fixedly connected to thermal switches, and the power connection ends of the two thermal switches are fixedly connected to connecting wires, and the other ends of the two connecting wires pass through the mounting plate and are electrically connected to the first energized coils; The fire-proof cut-off unit includes a ceramic seat, which is located below the electric meter body. A bearing plate is slidably connected to the inside of the ceramic seat. Two bearing springs are fixedly connected to the bottom surface of the bearing plate. The bottom ends of the two bearing springs are fixedly connected to the inner bottom wall of the ceramic seat. The upper surface of the bearing plate is fixedly connected to a connecting frame. Two conductive springs are fixedly connected to the upper surface of the connecting frame. The two conductive springs are clamped inside the conductive frame. The bottom surfaces of the two conductive springs are fixedly connected to a conductive plate. The two conductive plates are clamped inside the connecting frame. Two auxiliary grooves are provided on the left side of the ceramic seat. The two conductive plates are slidably connected inside the auxiliary grooves. A positioning block is fixedly connected to the bottom surface of the bearing plate. The right side of the ceramic seat is fixedly connected to a connecting frame. An auxiliary frame is fixedly connected, a second limiting iron block is slidably connected to the right side surface of the ceramic seat, the second limiting iron block is located inside the auxiliary frame, the upper surface of the second limiting iron block contacts the bottom surface of the positioning block, the right side surface of the second limiting iron block is fixedly connected to a connecting plate, the right side surface of the connecting plate is fixedly connected to two second return springs, the other ends of the two second return springs are fixedly connected to the inner side wall of the auxiliary frame, the inner side wall of the auxiliary frame is fixedly connected to a second iron core, the second iron core is located on the right side of the connecting plate, the outer surface of the second iron core is wound with a second energized coil, the inner top wall of the ceramic cover is fixedly connected to a pressing plate, the upper surface of the electric meter body is fixedly connected to a contact switch, and the contact switch is electrically connected to the second energized coil through a wire; The fire extinguishing mechanism includes a positioning frame, the upper surface of the positioning frame is fixedly connected to the bottom surface of the mounting plate, the left side of the positioning frame is fixedly connected to the right side of the ceramic seat, the upper surface of the auxiliary frame is fixedly connected to the bottom surface of the positioning frame, the inner wall of the positioning frame is slidably connected with a ceramic plate, the left side of the ceramic plate is in contact with the right side of the connecting frame, the inner side wall of the ceramic plate is fixedly connected with a push spring, the other end of the push spring is fixedly connected to the inner side wall of the positioning frame, a storage cavity is opened inside the mounting plate, the inner side wall of the storage cavity is fixedly connected with a storage tank, the bottom surface of the storage tank is fixedly connected with a solenoid valve, the solenoid valve is electrically connected to a contact switch through a wire, the output end of the solenoid valve is fixedly connected with a multi-way pipe, and multiple water outlets of the multi-way pipe all penetrate the mounting plate and extend to the left side of the mounting plate.

2. A safe and fireproof smart meter according to claim 1, characterized in that: Two reinforcement blocks are fixedly connected to the right side surface of the mounting plate, and the upper surface of each reinforcement block is fixedly connected to the bottom surface of the fixing frame.

3. A safe and fireproof smart electric meter according to claim 1, characterized in that: The inner wall of the ceramic seat is fixedly connected with a limiting ring, and a through groove is formed on the right side surface of the limiting ring.

4. A safe and fireproof smart electric meter according to claim 1, characterized in that: Four isolation plates are fixedly connected to the left side of the ceramic seat, two conductive plates are located between each group of isolation plates, and the number of isolation plates in each group is two.

5. A safe and fireproof smart meter according to claim 1, characterized in that: The left side of the mounting plate is respectively fixedly inlaid with an alarm light and a buzzer, the alarm light and the buzzer are both located above the meter body, and the alarm light and the buzzer are both electrically connected to the contact switch through a wire.

6. A safe and fireproof smart electric meter according to claim 1, characterized in that: The front side of the storage tank is fixedly connected with an inflation pipe, and the other end of the inflation pipe passes through the mounting plate and is fixedly connected with a one-way valve.

7. A safe and fireproof smart electric meter according to claim 1, characterized in that: A telescopic rod is arranged inside the two push springs, the telescopic ends of the two telescopic rods are fixedly connected to the inner wall of the ceramic plate, and the right ends of the two telescopic rods are fixedly connected to the inner wall of the positioning frame.

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