Power utilization safety monitoring method and early warning device for distribution box

Abstract

The invention relates to the technical field of power distribution boxes, in particular to a power utilization safety monitoring method and early warning device for a power distribution box, and the device comprises a body which is provided with a space for installing a power distribution switch, a smoke sensor and other electronic elements. A power distribution switch is installed on the inner wall of the body, an alarm is installed at the top end of the body, a pre-alarm is installed at the top end of the inner wall of the body, a control panel is installed at the position, close to the pre-alarm, of the inner wall of the body, and a temperature sensor and a smoke sensor are installed at one end of the inner wall of the body. Through cooperative use of a second electric push rod, a square frame, a sealing plate, a moving plate and a heat dissipation groove, the purposes of heat dissipation and automatic sealing fire extinguishing can be achieved, the two modes are automatically switched, the time for notifying workers and processing is shortened, the use convenience and safety are improved, the possibility of fire spreading is reduced, and the practicability is high. And the two modes can be used simultaneously.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution boxes, and in particular to a method and an early warning device for monitoring the safety of electricity use of distribution boxes. Background Art

[0002] With the rapid development of economy and rapid progress of science and technology, electricity has become one of the indispensable infrastructures in modern society. In various industrial facilities, commercial buildings and residents' lives, the distribution box is a key equipment for power distribution and control. Its operation safety is directly related to the stability and reliability of the entire power system.

[0003] Most existing distribution boxes are equipped with heat dissipation holes when in use. However, in the event of a fire, it is difficult to automatically seal the distribution cabinet for fire extinguishing. If it is set as a sealed device, it is difficult to dissipate heat, which is inconvenient to use. At the same time, after the fire is extinguished, the gas inside some distribution cabinets remains or spreads, which can easily cause harm to the human body.

[0004] To this end, we proposed a power safety monitoring method and early warning device for a distribution box to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a method and an early warning device for monitoring the safety of electricity use of a distribution box, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a power safety monitoring method and early warning device for a distribution box, comprising a main body, The main body has space for installing power distribution switches, smoke sensors and other electronic components; The real-time monitoring module is connected to the control panel and is used to collect parameters such as current, voltage, and temperature of the distribution box and the connected circuits; The intelligent analysis module is connected to the smoke sensor to perform intelligent analysis on the data collected by the real-time monitoring module to determine whether there are any safety hazards; The automatic response module is connected to the control panel unit and automatically cuts off the fault circuit or sends out an early warning signal according to the judgment result of the intelligent analysis module.

[0007] Preferably, the intelligent analysis module includes preset threshold judgment logic and fault identification algorithm, which improves the safety of use and can detect and process the data inside the distribution cabinet in a timely manner.

[0008] Preferably, the automatic response module includes a linkage loop switch and an early warning signal generator to improve the efficiency of handling unexpected situations and reduce unnecessary time waste.

[0009] A storage cabinet is installed on one side of the body, and a heat dissipation hole is opened on one side of the storage cabinet, and a dustproof net is installed on one side of the storage cabinet at the heat dissipation hole, the front of the body and the storage cabinet are hinged with a cover plate, the inner wall of the body is installed with a power distribution switch, the top of the body is installed with an alarm, the top of the inner wall of the body is installed with a pre-alarm, the inner wall of the body is installed with a control panel near the pre-alarm, a temperature sensor and a smoke sensor are installed at one end of the inner wall of the body, a water collecting tank is installed on the back of the body, a water tank is installed on the water collecting tank and the top of the body, and a water pipe is embedded in the middle of the body and the water collecting tank; The inner wall of the storage cabinet is fixedly connected with an arc ring, and a gas fire extinguisher is movably installed in the middle of the arc ring, one end of the gas fire extinguisher is connected with a water pipe, and the bottom end of the water pipe is connected with a nozzle; A square frame is fixed on one side of the inner wall of the body, and a sealing plate is slidably inserted into the inner wall of the square frame, a second electric push rod is installed on the top of the sealing plate located on the inner wall of the body, and a movable plate is fixedly connected to both ends of one side of the sealing plate, a heat dissipation fan is installed on the inner wall of the body away from the square frame, and heat dissipation grooves are penetrated on the surfaces of the body and the square frame; A first electric push rod is installed at one end of the top end of the inner wall of the main body, and a transverse plate is fixed to the piston end of the first electric push rod, a reserved groove is opened at one end of the inner wall of the main body, a filter assembly is installed on one side of the main body, and the filter assembly includes a square shell, and the square shell is connected to one side of the main body, an air outlet is fixed at the other end of the square shell, and a coarse filter screen, a fine filter screen, a molecular sieve layer and an activated carbon layer are respectively fixed in the square shell.

[0010] Preferably, a groove is provided at one end of the inner wall of the body below the horizontal plate, and the groove is slidably inserted into one end of the horizontal plate to limit the moving position of the horizontal plate, prevent the horizontal plate from shifting after long-term use, and maintain stable movement.

[0011] Preferably, a fixing box is fixedly connected to the top of the inner wall of the placement cabinet, and a drawer is slidably inserted in the fixing box, and a square groove is opened in the drawer to expose the desiccant inside the drawer to keep the gas fire extinguisher inside the placement cabinet dry.

[0012] Preferably, the water tank is connected to the water collecting tank, a liquid monitor is installed in the water tank, and one end of the water collecting tank is connected to the water pipe, which helps to reduce the heat inside the equipment and maintain normal and stable operation.

[0013] Preferably, one end of the water pipe is fixedly inserted into one end of the inner wall of the main body, so that the fire extinguishing gas can reach the inside of the main body, thereby reducing the space occupied inside the main body.

[0014] Preferably, sliding grooves are provided at both ends of one side of the square frame, and square blocks are slidably inserted in the sliding grooves, the square blocks are fixedly connected to one end of the movable plate, and sealing strips are laid on both sides of the inner wall of the square frame to reduce the displacement of the sealing plate after long-term use, so that the sealing plate can only move horizontally up and down in the square frame.

[0015] Preferably, the arc ring is arranged in a circular shape, buckles are installed on both sides of the arc ring, and a strap is movably inserted in the buckle, and the strap is close to the gas fire extinguisher, so that the gas fire extinguisher can remain stable when placed, thereby improving the safety of placement and protecting the gas fire extinguisher.

[0016] The present invention provides a method and an early warning device for monitoring the safety of electricity use of a distribution box, which have the following beneficial effects: Through the coordinated use of the second electric push rod, square frame, sealing plate, movable plate and heat dissipation groove, the purpose of heat dissipation and automatic sealed fire extinguishing can be achieved, the inflow of air can be restricted, thereby reducing the fire intensity, effectively reducing the spread of fire, better controlling the fire area and concentrating fire extinguishing resources, improving fire extinguishing efficiency, reducing the spread of toxic gases and smoke, protecting the surrounding environment and personnel safety. At the same time, heat dissipation can also be used during normal use and after fire extinguishing, effectively reducing the temperature in the cabinet, thereby improving the stability and service life of the equipment. The two modes are automatically switched to reduce the time for notifying staff and handling, improve the convenience and safety of use, reduce the possibility of fire spread, and allow the two modes to coexist.

[0017] Through the coordinated use of the filter component, the first electric push rod, the cross plate and the cooling fan, the purpose of filtering and treating the internal gas after fire extinguishing can be achieved, and the harmful gases generated inside the distribution cabinet can be effectively captured and treated to prevent these gases from being released into the environment, thereby reducing pollution and harm to the surrounding environment, reducing potential threats to personnel health, improving the safety of on-site workers, and improving the purity of the air inside the distribution cabinet, reducing corrosion or damage to the equipment inside the distribution cabinet. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a schematic diagram of a three-dimensional front view of the structure of the present invention; Figure 2 It is a schematic diagram of a three-dimensional front view of the structure of the present invention; Figure 3It is a three-dimensional front view schematic diagram of the filter assembly of the present invention; Figure 4 It is a three-dimensional front view schematic diagram of a local structure of the present invention; Figure 5 This is a three-dimensional front exploded schematic diagram of the drawer of the present invention; Figure 6 It is a schematic diagram of the use state of the local structure of the present invention; Figure 7 It is a three-dimensional front exploded schematic diagram of the structure of the present invention; Figure 8 It is a schematic diagram of a three-dimensional front cross-section of the main body of the present invention; Fig. 9 It is a three-dimensional front view cross-sectional schematic diagram of the water collecting tank of the present invention; Fig.10 It is a schematic three-dimensional side view of the structure of the present invention; Fig.11 It is a schematic diagram of the early warning method flow of the present invention.

[0020] In the figure: 1. body; 2. cover plate; 3. cabinet; 4. dust screen; 5. water tank; 6. alarm; 7. filter assembly; 71. square shell; 72. air outlet; 73. coarse filter; 74. fine filter; 75. molecular sieve layer; 76. activated carbon layer; 8. first electric push rod; 9. water pipe; 10. heat dissipation hole; 11. gas fire extinguisher; 12. drawer; 13. second electric push rod; 14. square frame; 15. sealing plate; 16. moving plate; 17. power distribution switch; 18. temperature sensor; 19. horizontal plate; 20. nozzle; 21. arc ring; 22. fixing box; 23. square groove; 24. heat dissipation groove; 25. water collecting tank; 26. cooling fan; 27. smoke sensor; 28. control board; 29. ​​pre-alarm; 30. slide groove; 31. square block; 32. reserved groove; 33. water pipe. DETAILED DESCRIPTION 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.

[0022] The body 1 has space for installing the power distribution switch 17, the smoke sensor 27 and other electronic components; The real-time monitoring module is connected to the control panel 28 and is used to collect the current, voltage, temperature and other parameters of the distribution box and the connected circuits, detect the temperature in real time, and can observe and respond through the wireless transmission terminal; The intelligent analysis module is connected to the temperature sensor 18 and the smoke sensor 27, and performs intelligent analysis on the data collected by the real-time monitoring module to determine whether there are safety hazards, including preset threshold judgment logic and fault identification algorithm, which can automatically determine whether there are safety hazards such as overcurrent, overvoltage, undervoltage, overheating, etc. according to the real-time monitoring data; The automatic response module is connected to the control panel 28 and the pre-alarm unit 29. According to the judgment result of the intelligent analysis module, it automatically cuts off the fault circuit or sends out a warning signal. The automatic response module includes a linkage circuit switch and a warning signal generator. When the intelligent analysis module determines that there is a safety hazard, it automatically cuts off the fault circuit or sends out an audible and visual warning signal through the alarm 6.

[0023] According to the attached Figure 1 As shown, a storage cabinet 3 is installed on one side of the main body 1, and a heat dissipation hole 10 is opened on one side of the storage cabinet 3, and a dustproof net 4 is installed on one side of the storage cabinet 3 at the heat dissipation hole 10 to perform heat dissipation treatment on the gas fire extinguisher 11 in the storage cabinet 3 to avoid excessive internal temperature and accelerate air circulation. The dustproof net 4 can reduce the entry of insects and dust and protect the internal devices.

[0024] According to the attached Figure 1 and attached Fig.10 As shown, the front of the main body 1 and the placement cabinet 3 are hinged with a cover plate 2, the inner wall of the main body 1 is installed with a distribution switch 17, the top of the main body 1 is installed with an alarm 6, the top of the inner wall of the main body 1 is installed with a pre-alarm 29, and the inner wall of the main body 1 is installed with a control panel 28 near the pre-alarm 29. The pre-alarm 29 and the control panel 28 are fixed to the inner wall of the main body 1 and are at the same horizontal position as the first electric push rod 8. The first electric push rod 8 is located in front of the control panel 28 and the pre-alarm 29.

[0025] According to the attached Figure 1 and attached Fig.10 As shown, a temperature sensor 18 and a smoke sensor 27 are installed at one end of the inner wall of the main body 1 to detect the temperature and smoke inside the main body 1, and transmit the detection to the control board 28. The control board 28 transmits the information to the early warning device and wireless transmission, and starts the sealing system 1 at the same time. In order to ensure the safe evacuation of personnel, after the early warning movement time, such as 30 seconds of the slide, the fire situation is continuously monitored during the delay period, and the fire extinguishing system is started after the delay.

[0026] According to the attached Fig. 9 and attached Fig.10As shown, a water collecting tank 25 is installed on the back of the main body 1, and a water tank 5 is installed on the top of the water collecting tank 25 and the main body 1. A water pipe 33 is embedded in the middle of the main body 1 and the water collecting tank 25. The water tank 5 is connected to the water collecting tank 25. A liquid detector is installed in the water tank 5. One end of the water collecting tank 25 is connected to the water pipe 33. After the liquid detector detects that the liquid inside the water tank 5 is lower than a certain water level line, it transmits a signal, and then the staff adds water to the water tank 5. The water inside the water tank 5 flows to the water collecting tank 25, and the water in the water collecting tank 25 flows into the water pipe 33. The water tank 5, the water collecting tank 25 and the water pipe 33 are interconnected. The position of the water pipe 33 corresponds to the position of the multiple groups of distribution switches 17. The specific heat capacity of water is large, and the water pipe 33 can absorb more heat inside the main body 1. When water flows in the pipeline, it takes away the heat behind the distribution box, thereby reducing the overall temperature of the distribution box. According to the attached Figure 2 , attached Figure 4 , attached Figure 5 and attached Figure 8 As shown, an arc ring 21 is fixedly connected to the inner wall of the placement cabinet 3, and a gas fire extinguisher 11 is movably installed in the middle of the arc ring 21, one end of the gas fire extinguisher 11 is connected to a water pipe 9, and the bottom end of the water pipe 9 is connected to a nozzle 20, one end of the water pipe 9 is fixedly inserted at one end of the inner wall of the main body 1, a fixed box 22 is fixedly connected to the top of the inner wall of the placement cabinet 3, and a drawer 12 is slidably inserted in the fixed box 22, a square groove 23 is provided in the drawer 12, and a desiccant can be placed in the drawer 12, and a groove is provided below the fixed box 22, and the groove corresponds to the position of the square groove 23, so that the desiccant is exposed, increasing the contact surface with the air, and facilitating the storage of the gas fire extinguisher 11. When the gas fire extinguisher 11 is started, the gas inside the gas fire extinguisher 11 flows along the water pipe 9 to the inside of the main body 1, and then is sprayed out from the bottom end of the nozzle 20 along the water pipe 9, and evenly extinguishes the inside of the main body 1.

[0027] According to the attached Figure 2 , attached Figure 8 and attached Fig.10As shown, the sealing system 1 includes a second electric push rod 13, a square frame 14, a sealing plate 15 and a movable plate 16, etc. A square frame 14 is fixed to one side of the inner wall of the body 1, and a sealing plate 15 is slidably inserted into the inner wall of the square frame 14. The top of the sealing plate 15 is located at the inner wall of the body 1 and the second electric push rod 13 is installed. Both ends of one side of the sealing plate 15 are fixedly connected with the movable plate 16. A cooling fan 26 is installed at the inner wall of the body 1 away from the square frame 14. The surfaces of the body 1 and the square frame 14 are penetrated by cooling grooves 24. Both ends of one side of the square frame 14 are provided with slide grooves 30, and a square block 31 is slidably inserted in the slide groove 30. The square block 31 is fixedly connected to one end of the movable plate 16. The inner wall of the square frame 14 Sealing strips are laid on both sides of the wall, and the sealing plate 15 is driven by the second electric push rod 13 to move up and down in the square frame 14, so that the inside of the body 1 is sealed or circulated. When the sealing plate 15 moves upward, the sealing plate 15 drives the movable plate 16 to move upward at the same time. The movement of the movable plate 16 causes the square block 31 to slide in the nozzle 20, so that the heat dissipation grooves 24 on the surface of the body 1 and the square frame 14 are exposed, so that the heat inside the body 1 can be dissipated. When sealing is required, the piston end of the second electric push rod 13 is driven by the sealing plate 15 to move downward in the reverse direction. The sealing strip on the inner wall of the square frame 14 is consistent with the height of the square frame 14, so that the gap between the square frame 14 and the sealing plate 15 is reduced, thereby improving the sealing effect.

[0028] According to the attached Figure 1 , attached Figure 8 and attached Fig.10 As shown, the sealing system 2 includes a first electric push rod 8, a horizontal plate 19, and a reserved groove 32. The first electric push rod 8 is installed at one end of the top of the inner wall of the body 1, and the piston end of the first electric push rod 8 is fixed with the horizontal plate 19. One end of the inner wall of the body 1 is located below the horizontal plate 19 and is provided with a groove, and the groove and one end of the horizontal plate 19 are slidably inserted. The horizontal plate 19 is driven to move left and right in the body 1 by the movement of the piston end of the first electric push rod 8. When the fire extinguishing device is used, the sealing system is started, and the piston end of the first electric push rod 8 drives the horizontal plate 19 to move to the right, so that the reserved groove 32 is exposed; According to the attached Figure 3As shown, a reserved groove 32 is provided at one end of the inner wall of the body 1, a filter assembly 7 is installed on one side of the body 1, and the filter assembly 7 includes a square shell 71, and the square shell 71 is connected to one side of the body 1, and an air outlet 72 is fixed at the other end of the square shell 71, and a coarse filter 73, a fine filter 74, a molecular sieve layer 75 and an activated carbon layer 76 are respectively fixed in the square shell 71. After the fire is extinguished, the harmful gas inside the body 1 is blown into the square shell 71 through the heat dissipation fan 26, and the coarse filter 73, the fine filter 74, the molecular sieve layer 75 and the activated carbon layer 76 in the square shell 71 filter the gas in layers, and the filtered gas is discharged through the air outlet 72, the coarse filter 73 and the fine filter 74 filter the particles and impurities in the gas, and then the molecular sieve layer 75 and the activated carbon layer 76 filter and adsorb the odor in the gas.

[0029] According to the attached Figure 2 and attached Figure 4 The arc ring 21 is set in a circular shape, and buckles are installed on both sides of the arc ring 21, and a strap is movably inserted in the buckle, and the strap is close to the gas fire extinguisher 11. The strap is adjusted and moved according to the thickness of the gas fire extinguisher 11 to limit the use position of the gas fire extinguisher 11 and reduce the possibility of the gas fire extinguisher 11 falling when placed.

[0030] Working principle: put the whole body in a suitable position, provide power source for the device through an external power supply, fill the water tank 5 with water before use, the water in the water tank 5 flows to the water collecting tank 25, the water in the water collecting tank 25 flows to the water pipe 33, and put the desiccant in the drawer 12. In daily use, two sets of cooling fans 26 blow the heat inside the body 1 to the heat dissipation slot 24 to flow out, and at the same time, the water inside the water pipe 33 on the back of the body 1 takes away the heat. After long-term use, the water in the water pipe 33, the water collecting tank 25 and the water tank 5 will decrease. When it decreases to a certain height, the temperature detector will sound an alarm, and the staff will carry out water filling treatment; When the temperature sensor 18 detects that the internal temperature is too high, the information is transmitted to the control panel 28 and the early alarm 29. When the temperature further increases and smoke is generated, the temperature sensor 18 and the smoke sensor 27 detect that the temperature is too high and smoke is generated, and the two sets of cooling fans 26 are turned off, and the closed system 1 is started. , the second electric push rod 13 pushes the sealing plate 15 to move to the bottom end of the square frame 14, so that the inner wall of the main body 1 is sealed, and then the fire extinguishing system is started, and the gas in the gas fire extinguisher 11 is transmitted to the water pipe 9 and sprayed out along the nozzle 20 to extinguish the fire of the main body 1. After the fire extinguishing, the temperature sensor 18 detects the temperature inside the main body 1. When the internal temperature drops to a certain temperature value, the closed system 2 and the heat dissipation fan 26 are started. After starting the closed system 2, the output end of the first electric push rod 8 drives the cross plate 19 away from the reserved groove 32, so that the reserved groove 32 is exposed. The two sets of heat dissipation fans 26 generate wind force to blow the internal harmful gas through the reserved groove 32 to the inside of the filter component 7 for filtering. Finally, the gas is discharged, the sealing system 2 is closed, and the sealing system 1 is opened.

[0031] The above is the entire working principle of the present invention.

[0032] Finally, a few points should be explained: First, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, and can be mechanical or electrical connections, or internal connectivity between two components, or direct connections. "Up", "down", "left" and "right" are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may change; secondly, in the drawings of the embodiments disclosed in the present invention, only the structures involved in the embodiments disclosed in the present invention are involved. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; finally, the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for monitoring power safety of a distribution box, characterized in that: The following steps are involved: The body (1) has space for installing a power distribution switch (17), a smoke sensor (27) and other electronic components; A real-time monitoring module connected to the control panel (28) for collecting parameters such as current, voltage, temperature, etc. of the distribution box and the connected circuits; An intelligent analysis module is connected to the smoke sensor (27) and performs intelligent analysis on the data collected by the real-time monitoring module to determine whether there are any safety hazards; The automatic response module is connected to the control panel (28) unit and automatically cuts off the fault circuit or issues a warning signal according to the judgment result of the intelligent analysis module.

2. The method for monitoring power safety of a distribution box according to claim 1, characterized in that: The intelligent analysis module includes preset threshold judgment logic and fault identification algorithm.

3. The method for monitoring power safety of a distribution box according to claim 1, characterized in that: The automatic response module includes a linkage loop switch and an early warning signal generator.

4. An early warning device for a distribution box, characterized in that: A method for monitoring the safety of electricity use in a distribution box as described in any one of claims 1 to 3 above, wherein the early warning device comprises a body (1), A storage cabinet (3) is installed on one side of the body (1), and a heat dissipation hole (10) is opened on one side of the storage cabinet (3), and a dustproof net (4) is installed on one side of the storage cabinet (3) at the heat dissipation hole (10), the front of the body (1) and the storage cabinet (3) are both hinged with a cover plate (2), the inner wall of the body (1) is installed with a power distribution switch (17), the top of the body (1) is installed with an alarm (6), the top of the inner wall of the body (1) is installed with a pre-alarm (29), the inner wall of the body (1) is installed with a control panel (28) near the pre-alarm (29), one end of the inner wall of the body (1) is installed with a temperature sensor (18) and a smoke sensor (27), the back of the body (1) is installed with a water collecting tank (25), the water collecting tank (25) and the top of the body (1) are jointly installed with a water tank (5), and a water pipe (33) is embedded in the middle of the body (1) and the water collecting tank (25); The inner wall of the storage cabinet (3) is fixedly connected with an arc ring (21), and a gas fire extinguisher (11) is movably installed in the middle of the arc ring (21), one end of the gas fire extinguisher (11) is connected to a water pipe (9), and the bottom end of the water pipe (9) is connected to a nozzle (20); A square frame (14) is fixed on one side of the inner wall of the body (1), and a sealing plate (15) is slidably inserted into the inner wall of the square frame (14); a second electric push rod (13) is installed at the top of the sealing plate (15) located on the inner wall of the body (1); both ends of one side of the sealing plate (15) are fixedly connected to a moving plate (16); a heat dissipation fan (26) is installed on the inner wall of the body (1) away from the square frame (14); and heat dissipation grooves (24) are provided through the surfaces of the body (1) and the square frame (14); A first electric push rod (8) is mounted on one end of the top end of the inner wall of the body (1), and a transverse plate (19) is fixed to the piston end of the first electric push rod (8). A reserved groove (32) is provided on one end of the inner wall of the body (1). A filter assembly (7) is mounted on one side of the body (1), and the filter assembly (7) comprises a square shell (71), and the square shell (71) is connected to one side of the body (1). An air outlet (72) is fixed on the other end of the square shell (71), and a coarse filter screen (73), a fine filter screen (74), a molecular sieve layer (75) and an activated carbon layer (76) are respectively fixed in the square shell (71).

5. The early warning device for a distribution box according to claim 4, characterized in that: A groove is provided at one end of the inner wall of the body (1) below the transverse plate (19), and the groove is slidably inserted into one end of the transverse plate (19).

6. The early warning device for a distribution box according to claim 4, characterized in that: A fixing box (22) is fixedly connected to the top of the inner wall of the storage cabinet (3), and a drawer (12) is slidably inserted in the fixing box (22), and a square groove (23) is provided in the drawer (12).

7. The early warning device for a distribution box according to claim 4, characterized in that: The water tank (5) is connected to the water collecting tank (25), a liquid monitor is installed in the water tank (5), and one end of the water collecting tank (25) is connected to the water pipe (33).

8. The early warning device for a distribution box according to claim 4, characterized in that: One end of the water pipe (9) is fixedly inserted into one end of the inner wall of the body (1).

9. The early warning device for a distribution box according to claim 4, characterized in that: Slide grooves (30) are provided at both ends of one side of the square frame (14), and a square block (31) is slidably inserted into the slide groove (30). The square block (31) is fixedly connected to one end of the movable plate (16), and sealing strips are laid on both sides of the inner wall of the square frame (14).

10. The early warning device for a distribution box according to claim 4, characterized in that: The arc ring (21) is arranged in a circular ring shape, buckles are installed on both sides of the arc ring (21), and a strap is movably inserted in the buckle, and the strap is in close contact with the gas fire extinguisher (11).

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