Condensed aerosol fire extinguishing device for electric meter box

Abstract

The utility model discloses an electric meter box hot aerosol fire extinguishing device, which relates to the technical field of electric meter boxes, and comprises a box body, the front side of the box body is hinged with a sealing box door, the sealing box door is provided with a visual window, the top of the box body is provided with a purification mechanism, the left side and the right side of the rear end of the box body are fixedly provided with mounting rear plates, and the mounting rear plates are fixedly connected with the box body. A plurality of equipment mounting plates are uniformly and fixedly mounted on the rear side of the inner wall of the box body, a plurality of clamping side plates are uniformly and fixedly mounted below the left side and the right side of the inner wall of the box body, and an air outlet grating plate is slidably clamped between the opposite surfaces of every two adjacent clamping side plates. The clamping driving box, the positive and negative threaded rod, the rotating handle, the clamping plate, the hot aerosol fire extinguisher, the clamping side plate and the air outlet grating plate are matched with one another, so that the hot aerosol fire extinguishers of different models and sizes can be conveniently and quickly disassembled and assembled while the internal installation space of the box body is guaranteed, and the stability after installation is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to an electric meter box technical field, concretely relates to an electric meter box hot gas aerosol fire extinguishing device. BACKGROUND

[0002] The material for manufacturing the electric meter box for low-voltage cable branch box is a resin-based composite material. The main components of the box body are ABS engineering plastic, polycarbonate transparent PC material, DMC, and SMC, which are injection molded and pressed. Aerosol fire extinguishing agent is applied to the tank fire extinguishing of some organic chemical formulations and oil liquid storage tanks. The aerosol agent generates fire-extinguishing gas, which decomposes the fire-extinguishing particles and releases high-efficiency fire-extinguishing particles. It is more advantageous than traditional fire extinguishers in portability, safety, and fire extinguishing capacity. The existing technology has the following problems:

[0003] Chinese patent document CN219355155U discloses an aerosol fire extinguishing device for an electric meter box, which comprises a base, a fire extinguishing carrying box mechanism is arranged on the front side of the base, and a fire extinguishing execution mechanism is fixedly arranged in the fire extinguishing carrying box mechanism. When a fire occurs in the electric meter box, the bottle body is started by the power inductor to make the aerosol layer inside react and spray the gas generated by the aerosol from the nozzle, and the electric meter box is extinguished. The inclined chute plate, the semicircular support frame, the limiting buffer plate, and the buffer spring are cooperatively designed to clamp and quickly limit the fire extinguishing bottle body, and to make the hot gas aerosol fire extinguishing bottle body slide upward in an emergency, thereby improving the stability of the fire extinguishing device. The setting of the telescopic rod base, the telescopic support shaft, and the compression spring improves the damping performance. It is convenient to install and disassemble, and it is clever to use. At the same time, an exhaust hole is arranged on the side of the carrying box, and a smoke purifier is arranged above, so as to facilitate the ventilation of the box body.

[0004] In the above-mentioned document, the overall hot gas aerosol fire extinguishing device needs to be fixed by relying on a positioning structure occupying a large space, which greatly reduces the remaining space in the overall electric meter box, cannot guarantee the normal installation of other electronic components inside, and only relies on the pressure of the spring to stably clamp the hot gas aerosol fire extinguishing device. When a fire occurs, the hot gas aerosol fire extinguishing device will instantly release a large amount of gas, which may cause it to fall off between the two inclined chute plates, and cannot guarantee its stability during work. At the same time, although the smoke purifier is used to exhaust the exhaust gas in the box in the above-mentioned document, the exhaust holes are also arranged on both sides of the box, which causes part of the exhaust gas to be directly exhausted from the exhaust holes, and cannot be concentratedly exhausted. UTILITY MODEL CONTENTS

[0005] The utility model provides an electric meter box hot gas aerosol fire extinguishing device to solve the problems in the above-mentioned background technology.

[0006] The utility model provides to adopt the technical scheme that

[0007] An electric meter box hot gas aerosol fire extinguishing device, including the box, the front side of box is hinged with sealed box door, the sealed box door is equipped with visual window, the top of box is provided with the purifying mechanism, the rear end of box both sides are evenly installed with the installation rear plate, the inner wall rear side of box is evenly installed with a plurality of equipment mounting plate, the inner wall both sides below of box are evenly installed with a plurality of clamping side plates, the opposite surface between adjacent two clamping side plates is slidably connected with the air outlet grid, the left side below of box is provided with the air inlet mechanism, the right side above of box is provided with the air outlet mechanism, the rear side of sealed box door is fixedly installed with sealed clamping plate, the sealed clamping plate is equipped with front and rear through visual through -hole, and the visual through -hole is through to front and rear visual window, the four side surfaces of sealed clamping plate are fixedly bonded with rubber ring, and the inner chamber front side of box is clamped with the sealed clamping plate using rubber ring.

[0008] The utility model discloses further improve in the technical scheme that the rear end below of box is fixedly installed with the clamping drive box, the clamping drive box is equipped with the drive groove, the inner wall rear side below of box is equipped with the through -groove to the inner chamber of drive groove, the right side of the inner wall of drive groove is movably installed with positive and negative screw rod, the left end of positive and negative screw rod is fixedly installed with the rotary handle to the left side of clamping drive box and penetrates, the outer wall both sides of positive and negative screw rod are equipped with the thread wall of opposite thread respectively, and the outer wall of two thread wall is all threadedly installed with moving plate.

[0009] The utility model discloses further improve in the technical scheme that the inner wall bottom of box is provided with hot gas aerosol fire extinguisher, the top of hot gas aerosol fire extinguisher is fixedly installed with electric power inductor, the front end of two moving plates is all fixedly installed with clamping plate and penetrates through -groove to the inner chamber of box, the opposite surface of two clamping plates is fixedly bonded with antiskid rubber pad, and the opposite surface of two antiskid rubber pads is respectively overlapped with the left and right sides of hot gas aerosol fire extinguisher.

[0010] The utility model discloses further improve in the technical scheme that the air inlet mechanism includes air inlet cylinder, and the air inlet cylinder is fixedly installed in the left side below of box and with its inner chamber each other through -punching, the inner ring front and back both sides of air inlet cylinder are fixedly installed with connecting plate no.

[0011] The utility model discloses further improve in the technical scheme that the inner ring left side of air inlet cylinder is equipped with inner thread wall, the left side of air inlet cylinder is provided with thread ring, and the thread ring is threadedly connected with inner thread wall, and the inner ring of thread ring is fixedly installed with stainless steel filter screen.

[0012] The further improvement in the utility model technical scheme lies in that: the air outlet mechanism comprises an air outlet cylinder, the air outlet cylinder is fixedly installed on the right top of the box body and is mutually penetrated with the inner cavity thereof, connecting plate two is fixedly installed between the inner ring of the air outlet cylinder and the front and back sides thereof, an exhaust fan is fixedly installed on the right side of the connecting plate two, an exhaust funnel is fixedly connected to the right side of the air outlet cylinder, a gas conveying long pipe is fixedly connected to the right end of the exhaust funnel, and an electric control valve is arranged on one side of the outer wall of the gas conveying long pipe close to the exhaust funnel.

[0013] The further improvement in the utility model technical scheme lies in that: the air outlet mechanism comprises an air outlet cylinder, the air outlet cylinder is fixedly installed on the right top of the box body and is mutually penetrated with the inner cavity thereof, connecting plate two is fixedly installed between the inner ring of the air outlet cylinder and the front and back sides thereof, an exhaust fan is fixedly installed on the right side of the connecting plate two, an exhaust funnel is fixedly connected to the right side of the air outlet cylinder, a gas conveying long pipe is fixedly connected to the right end of the exhaust funnel, and an electric control valve is arranged on one side of the outer wall of the gas conveying long pipe close to the exhaust funnel.

[0014] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0015] The utility model provides a kind of electric meter box hot gas aerosol fire extinguishing device, the mutual cooperation between clamping drive box, positive and negative screw rod, rotary handle, clamping plate, hot gas aerosol fire extinguisher, clamping side plate, air outlet grille plate, to guarantee the installation space inside box body while, it is convenient to the quick disassembly of different models size hot gas aerosol fire extinguisher, and the stability after installation is better.

[0016] The utility model provides a kind of electric meter box hot gas aerosol fire extinguishing device, the mutual cooperation between air inlet mechanism, air outlet mechanism, purification mechanism, to meet the heat dissipation function of box body while, waste gas produced by fire extinguishing will not overflow, all are purified and discharged, improve the comprehensiveness of waste gas purification. DRAWINGS

[0017] Figure 1 It is the overall schematic view of the utility model structure;

[0018] Figure 2 It is the box body inner cavity schematic view of the utility model structure;

[0019] Figure 3 It is the box body and clamping drive box profile schematic view of the utility model structure;

[0020] Figure 4 It is the air inlet mechanism schematic view of the utility model structure;

[0021] Figure 5 It is the air outlet mechanism schematic view of the utility model structure.

[0022] In the figure: 1, box body; 11, mounting back plate; 12, equipment mounting plate; 13, clamping side plate; 14, air outlet grid plate; 15, air inlet mechanism; 151, air inlet cylinder; 152, connecting plate one; 153, air inlet fan; 154, internal thread wall; 155, threaded ring; 156, stainless steel filter screen; 16, air outlet mechanism; 161, air outlet cylinder; 162, connecting plate two; 163, air outlet fan; 164, air outlet funnel; 165, air conveying long pipe; 166, electric control valve; 17, clamping drive box; 171, drive groove; 172, right and left threaded rod; 173, rotating handle; 174, moving plate; 175, clamping plate; 176, anti-skid rubber pad; 18, through groove; 19, hot gas aerosol fire extinguisher; 191, electric power inductor; 2, sealing box door; 21, sealing clamping plate; 211, visual through hole; 212, rubber ring; 3, visual window; 4, purification mechanism; 41, smoke cover; 42, smoke purifier; 43, main smoke exhaust pipe. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, purposes and effects realized by the utility model easy to understand

[0024] It is understood that the utility model will be further described below in combination with specific embodiments.

[0025] As Figure 1 , Figure 2 The utility model provides a hot gas aerosol fire extinguishing device of electric meter box, including box body 1, the front side of box body 1 is hinged with sealing box door 2, sealing box door 2 is set with visual window 3, the top of box body 1 is provided with purification mechanism 4, the rear end of box body 1 left and right sides are fixedly installed with mounting back plate 11, the rear side of the inner wall of box body 1 is evenly fixedly installed with a plurality of equipment mounting plates 12, the left and right sides below the inner wall of box body 1 are evenly fixedly installed with a plurality of clamping side plates 13, and the opposite surface between adjacent two clamping side plates 13 is slidably clamped with air outlet grid plate 14, and the left side below box body 1 is provided with air inlet mechanism 15, and the right side above box body 1 is provided with air outlet mechanism 16, and the rear side of sealing box door 2 is fixedly installed with sealing clamping plate 21, and sealing clamping plate 21 is set with front and rear through visual through hole 211, and visual through hole 211 is front and rear through with visual window 3, and the four side surfaces of sealing clamping plate 21 are fixedly bonded with rubber ring 212, and sealing clamping plate 21 is clamped with the front side of the inner cavity of box body 1 by rubber ring 212;

[0026] When in use, the state of the inner cavity of the box body 1 can be directly observed through the visualization window 3 opened by the sealing box door 2 and the visualization through hole 211 opened by the sealing clamping plate 21. Meanwhile, when the sealing box door 2 is closed during daily use, the sealing clamping plate 21 can be clamped into the front side of the box body 1 more stably through the rubber ring 212 on the outer wall of the sealing clamping plate 21. Meanwhile, the air outlet grille plate 14 can be adjusted up and down according to the height of the thermal aerosol fire extinguisher 19, and is installed between the adjacent two clamping side plates 13 through clamping. The thermal aerosol fire extinguisher 19 is installed below the air outlet grille plate 14. The upper and lower through holes of the air outlet grille plate 14 do not affect the release of gas and do not occupy the space of the inner cavity of the box body 1, which is convenient for the equipment to be installed on the equipment mounting plate 12. Meanwhile, the whole box body 1 can also be installed at the designated position through the bolts penetrating through the two mounting back plates 11.

[0027] As shown in Figure 3 The box body 1 is fixedly installed with a clamping driving box 17 below the rear end. The clamping driving box 17 is provided with a driving groove 171. The inner wall rear side of the box body 1 is provided with a through groove 18 penetrating into the inner cavity of the driving groove 171. A right side of the inner wall of the driving groove 171 is movably installed with a right and left threaded rod 172. The left end of the right and left threaded rod 172 penetrates to the left side of the clamping driving box 17 and is fixedly installed with a rotating handle 173. The outer wall of the right and left threaded rod 172 is respectively provided with a thread wall with opposite threads on the left and right sides. The outer wall of the two thread walls is respectively threadedly installed with a moving plate 174. The inner wall bottom of the box body 1 is provided with a thermal aerosol fire extinguisher 19. The top of the thermal aerosol fire extinguisher 19 is fixedly installed with a power inductor 191. The front end of the two moving plates 174 penetrates the through groove 18 to the inner cavity of the box body 1 and is fixedly installed with a clamping plate 175. The opposite surfaces of the two clamping plates 175 are respectively fixedly bonded with anti-skid rubber pads 176. The opposite surfaces of the two anti-skid rubber pads 176 are respectively overlapped with the left and right sides of the thermal aerosol fire extinguisher 19.

[0028] When the thermal aerosol fire extinguisher 19 needs to be installed, the thermal aerosol fire extinguisher 19 is placed into the inner cavity of the box body 1, and then the power is turned on. Then the rotating handle 173 is rotated to drive the right and left threaded rod 172 in the driving groove 171 of the clamping driving box 17 to rotate. The thread walls with opposite threads on the left and right sides of the outer wall of the right and left threaded rod 172 are threadedly connected with the moving plates 174 to drive the two clamping plates 175 to approach each other. The left and right sides of the thermal aerosol fire extinguisher 19 are clamped and fixed by the anti-skid rubber pads 176. When the fire occurs in the inner cavity of the box body 1, the power inductor 191 can timely occur and start the thermal aerosol fire extinguisher 19 to release gas, so that the gas fills the whole inner cavity of the box body 1 to extinguish the fire. The right and left threaded rod 172 is reversed by reversing the rotating handle 173, so that the two clamping plates 175 are separated from each other, the thermal aerosol fire extinguisher 19 is released from the limitation, and the thermal aerosol fire extinguisher 19 is conveniently replaced.

[0029] As shown in Figure 4 , Figure 5 , the air inlet mechanism 15 comprises an air inlet cylinder 151 fixedly installed below the left side of the box body 1 and penetrating the inner cavity thereof, a connecting plate one 152 fixedly installed between the front and rear sides of the inner ring of the air inlet cylinder 151, an air inlet fan 153 fixedly installed at the right side of the connecting plate one 152, an internally-threaded wall 154 formed at the left side of the inner ring of the air inlet cylinder 151, a threaded ring 155 provided at the left side of the air inlet cylinder 151 and threadedly connected with the internally-threaded wall 154, a stainless steel filter screen 156 fixedly installed at the inner ring of the threaded ring 155, the air outlet mechanism 16 comprises an air outlet cylinder 161 fixedly installed above the right side of the box body 1 and penetrating the inner cavity thereof, a connecting plate two 162 fixedly installed between the front and rear sides of the inner ring of the air outlet cylinder 161, an air outlet fan 163 fixedly installed at the right side of the connecting plate two 162, an air outlet funnel 164 fixedly connected at the right side of the air outlet cylinder 161, a gas conveying long pipe 165 fixedly connected at the right end of the air outlet funnel 164, an electric control valve 166 provided at the side of the outer wall of the gas conveying long pipe 165 close to the air outlet funnel 164, the purification mechanism 4 comprises a flue gas cover 41 fixedly installed at the top of the box body 1 and penetrating the inner cavity thereof, a smoke purifier 42 fixedly installed at the top of the flue gas cover 41, a main flue gas discharging pipe 43 fixedly connected at the top output end of the smoke purifier 42, and the end of the gas conveying long pipe 165 away from the air outlet funnel 164 is fixedly connected at the right side of the main flue gas discharging pipe 43 and penetrates the inner cavity thereof;

[0030] When there is no fire, the external air is filtered by the stainless steel filter 156 in the inner circle of the threaded ring 155 and then sent into the inner cavity of the box 1 through the air inlet fan 153 installed on the connecting plate one 152 in the air inlet cylinder 151, thereby cooling the inner cavity of the box 1. At the same time, the threaded ring 155 can be directly rotated to be disassembled through the thread connection with the inner threaded wall 154, thereby facilitating the cleaning of the stainless steel filter 156. At the same time, the exhaust fan 163 installed on the connecting plate two 162 in the air outlet cylinder 161 can be started to send the heat in the inner cavity of the box 1 through the exhaust funnel 164 and the gas conveying long pipe 165, and then into the exhaust main pipe 43 for exhaust, thereby forming air circulation in the inner cavity of the box 1. When there is no fire, the heat dissipation work can be carried out. Once a fire occurs, the thermal aerosol fire extinguisher 19 releases a large amount of fire extinguishing gas, and a large amount of waste gas is generated by mixing and burning the equipment. At this time, the exhaust gas cannot be directly discharged by closing the exhaust gas long pipe 165 through the starting of the electric control valve 166, but the air inlet fan 153 is still in the starting state. At this time, the smoke purifier 42 at the top of the smoke cover 41 is started again to cooperate with the air inlet fan 153 to quickly purify and extract the waste gas in the inner cavity of the box 1, and then exhaust through the exhaust main pipe 43. The air inlet cylinder 151 that always keeps the air inlet state can prevent the waste gas from leaking. The thermal aerosol fire extinguisher 19 can send the electric signal when starting through the signal sending module, and cooperate with the smoke purifier 42 and the electric control valve 166 installed with the signal receiving module to quickly open the smoke purifier 42 and start the electric control valve 166 to seal the gas conveying long pipe 165 when the thermal aerosol fire extinguisher 19 is started due to a fire. The signal sending module and the signal receiving module belong to the prior art in the art, and therefore the specific signal transmission function is not described in detail here.

[0031] The working principle of the electric meter box thermal aerosol fire extinguishing device will be described below.

[0032] As Figures 1-5As shown, when in use, the state of the inner cavity of the box body 1 can be directly observed through the visualization window 3 opened by the sealing box door 2 and the visualization through hole 211 opened by the sealing clamping plate 21. Meanwhile, when the sealing box door 2 is closed, the sealing clamping plate 21 can be clamped into the front side of the box body 1 more stably through the rubber ring 212 on the outer wall of the sealing clamping plate 21. Meanwhile, the air outlet grille plate 14 can be adjusted up and down according to the height of the thermal aerosol fire extinguisher 19, and installed by being clamped between the adjacent two clamping side plates 13, and the thermal aerosol fire extinguisher 19 is installed below the air outlet grille plate 14. The upper and lower through holes opened by the air outlet grille plate 14 do not affect the release of gas and do not occupy the space of the inner cavity of the box body 1, which is convenient for the equipment to be installed on the equipment mounting plate 12. Meanwhile, the whole box body 1 can also be installed at the designated position by being penetrated by the bolts through the two mounting back plates 11. When the thermal aerosol fire extinguisher 19 needs to be installed, the thermal aerosol fire extinguisher 19 is placed into the inner cavity of the box body 1 at the bottom, and then powered on. Then, the positive and negative threaded rods 172 in the drive grooves 171 of the clamping drive box 17 are rotated by rotating the rotating handle 173, and the threads on the left and right sides of the outer wall of the positive and negative threaded rods 172 are screwed with the moving plate 174, so that the two clamping plates 175 are driven to move towards each other. The left and right sides of the thermal aerosol fire extinguisher 19 are clamped and fixed by the anti-skid rubber pads 176. When a fire occurs in the inner cavity of the box body 1, the power inductor 191 can timely detect the occurrence and start the thermal aerosol fire extinguisher 19 to release gas, so that the gas fills the whole inner cavity of the box body 1 to extinguish the fire. The two clamping plates 175 can be separated from each other by reversing the rotating handle 173 and the positive and negative threaded rods 172, so that the thermal aerosol fire extinguisher 19 is released from the limitation, which is convenient for the thermal aerosol fire extinguisher 19 to be quickly replaced. When there is no fire in daily use, the external air is filtered by the stainless steel filter screen 156 in the inner ring of the threaded ring 155 and then sent into the inner cavity of the box body 1 by starting the air inlet fan 153 installed on the inner cavity connecting plate one 152 of the air inlet cylinder 151, so as to cool the inner cavity of the box body 1. Meanwhile, the threaded ring 155 can be directly rotated to be screwed with the inner threaded wall 154 for disassembly, which is convenient for cleaning the stainless steel filter screen 156. Meanwhile, the exhaust fan 163 installed on the inner connecting plate two 162 of the air outlet cylinder 161 can send the heat in the inner cavity of the box body 1 out through the exhaust funnel 164 and the gas conveying long pipe 165, and then into the exhaust main pipe 43 for exhaust, so that the inner cavity of the box body 1 forms an air flow. When there is no fire, the inner cavity of the box body 1 can be cooled. Once a fire occurs, the thermal aerosol fire extinguisher 19 releases a large amount of fire-extinguishing gas, and a large amount of waste gas is generated by mixing and burning the equipment. At this time, the exhaust gas cannot be directly discharged by closing the exhaust gas long pipe 165 by starting the electric control valve 166, but the air inlet fan 153 remains in the starting state. At this time, the smoke hood 41 on the top of the smoke purifier 42 is started again, which can cooperate with the air inlet fan 153 to quickly purify and exhaust the waste gas in the inner cavity of the box body 1, and then exhaust it through the exhaust main pipe 43.And the intake cylinder 151 that keeps the intake state all the time can prevent the exhaust gas from leaking.

[0033] The utility model has been described in detail above, but some modifications or improvements can be made on the basis of the utility model, which is obvious to those skilled in the art. Therefore, without departing from the spirit of the utility model, the modifications or improvements are within the scope of the utility model.

Claims

1. An electric meter cabinet thermal gas aerosol fire extinguishing device, comprising a cabinet (1), characterized in that: The front side of the box (1) is hinged with a sealing box door (2), the sealing box door (2) is provided with a visualization window (3), the top of the box (1) is provided with a purification mechanism (4), the rear end of the box (1) is fixedly installed with a mounting rear plate (11) on the left and right sides, a plurality of equipment mounting plates (12) are uniformly fixedly installed on the rear side of the inner wall of the box (1), a plurality of clamping side plates (13) are uniformly fixedly installed on the left and right sides of the lower side of the inner wall of the box (1), the opposite faces of adjacent two clamping side plates (13) are slidably clamped with an air outlet grille plate (14), the left lower side of the box (1) is provided with an air inlet mechanism (15), the right upper side of the box (1) is provided with an air outlet mechanism (16), the rear side of the sealing box door (2) is fixedly installed with a sealing clamping plate (21), the sealing clamping plate (21) is provided with a front and rear through visualization through hole (211), the visualization through hole (211) is through in front and back with the visualization window (3), the four sides of the sealing clamping plate (21) are fixedly bonded with rubber rings (212), and the sealing clamping plate (21) is clamped with the inner cavity of the box (1) by the rubber ring (212).

2. The thermal gas aerosol fire extinguishing apparatus for an electric meter box according to claim 1, wherein: The rear end of the box (1) is fixedly installed with a clamping drive box (17), the clamping drive box (17) is provided with a drive groove (171), the rear side of the inner wall of the box (1) is provided with a through groove (18) penetrating into the inner cavity of the drive groove (171), the right side of the inner wall of the drive groove (171) is movably installed with a positive and negative screw rod (172), the left end of the positive and negative screw rod (172) penetrates to the left side of the clamping drive box (17) and is fixedly installed with a rotating handle (173), the left and right sides of the outer wall of the positive and negative screw rod (172) are respectively provided with screw walls with opposite threads, and the outer walls of the two screw walls are screw installed with moving plates (174).

3. An electrical meter cabinet thermal aerosol fire extinguishing apparatus according to claim 2, wherein: The inner wall bottom of the box (1) is provided with a heat aerosol fire extinguisher (19), the top of the heat aerosol fire extinguisher (19) is fixedly installed with a power inductor (191), the front ends of the two moving plates (174) penetrate through the through groove (18) to the inner cavity of the box (1) and are fixedly installed with clamping plates (175), the opposite faces of the two clamping plates (175) are fixedly bonded with anti-skid rubber pads (176), and the opposite faces of the two anti-skid rubber pads (176) are respectively overlapped with the left and right sides of the heat aerosol fire extinguisher (19).

4. The thermal gas aerosol fire extinguishing apparatus for an electric meter box according to claim 1, wherein: The air inlet mechanism (15) comprises an air inlet cylinder (151), the air inlet cylinder (151) is fixedly installed on the left lower side of the box (1) and is mutually penetrated with the inner cavity thereof, the inner ring of the air inlet cylinder (151) is fixedly installed with a connecting plate one (152) between the front and rear sides, and the right side of the connecting plate one (152) is fixedly installed with an air inlet fan (153).

5. An electrical meter cabinet thermal aerosol fire extinguishing apparatus according to claim 4, wherein: The inner ring left side of the air inlet cylinder (151) is provided with an internal thread wall (154), the left side of the air inlet cylinder (151) is provided with a threaded ring (155), the threaded ring (155) is in threaded connection with the internal thread wall (154), and the inner ring of the threaded ring (155) is fixedly installed with a stainless steel filter screen (156).

6. The thermal gas aerosol fire extinguishing apparatus for an electric meter box according to claim 1, wherein: The air outlet mechanism (16) comprises an air outlet cylinder (161), the air outlet cylinder (161) is fixedly installed on the right side of the top of the box body (1) and is in interpenetration with the inner cavity thereof, the air outlet cylinder (161) is fixedly installed with a connecting plate two (162) between the inner ring front and back sides thereof, the right side of the connecting plate two (162) is fixedly installed with an exhaust fan (163), the right side of the air outlet cylinder (161) is fixedly connected with an exhaust funnel (164), the right end of the exhaust funnel (164) is fixedly connected with a gas conveying long pipe (165), and the outer wall of the gas conveying long pipe (165) is provided with an electric control valve (166) on the side close to the exhaust funnel (164).

7. An electrical meter cabinet thermal aerosol fire extinguishing apparatus according to claim 6, wherein: The purification mechanism (4) comprises a flue gas cover (41), the flue gas cover (41) is fixedly installed on the top of the box body (1) and penetrates the inner cavity thereof, the top of the flue gas cover (41) is fixedly installed with a smoke purifier (42), the top output end of the smoke purifier (42) is fixedly connected with a flue gas main pipe (43), and the end of the gas conveying long pipe (165) away from the exhaust funnel (164) is fixedly connected with the right side of the flue gas main pipe (43) and penetrates the inner cavity thereof.

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