A new active fireproof distribution box

Abstract

The application discloses a novel active fireproof distribution box in the technical field of distribution boxes, which comprises a box body, and circular shafts are fixedly installed at the back of both sides of the inner cavity of the box body. The high-pressure cavity, electromagnetic valve, circular air bag and first thorn needle are arranged. When a fire breaks out inside the box body, dense smoke will be continuously generated inside the box body. At this time, the two smoke sensors can sense the generation of the dense smoke and send a signal to the controller. The controller will control the electromagnetic valve to open. At this time, the high-pressure gas in the high-pressure cavity can enter the inside of the bottom cavity. Under the action of the air pressure, the moving plate can drive the first thorn needle to move downward. Finally, the bottom end of the first thorn needle can puncture the circular air bag, so that the circular air bag is burst open. At this time, the dry powder in the circular air bag can be scattered downward, so that the effect of extinguishing the fire source inside the box body can be achieved, and the active fireproof purpose is effectively achieved.

Description

Technical Field

[0001] This invention relates to the field of distribution box technology, specifically a novel active fireproof distribution box. Background Technology

[0002] Distribution boxes are electrical devices that are widely used in the power industry due to their small size and easy installation. They are the control center that directs the rational distribution of electrical energy among various components in the power supply line, the control link that reliably receives the upstream power supply and correctly feeds out the load power, and the key to obtaining user satisfaction with the power supply quality.

[0003] Currently, distribution boxes are one of the most commonly used electrical devices, and they come in different types. However, existing distribution boxes lack effective active fire prevention and extinguishing functions in actual use. When fires occur due to malfunctions of the electronic equipment inside, they cannot be extinguished in time. As the fire spreads, it is only then that it is easily discovered. In such cases, not only are economic losses caused, but also significant safety hazards are created.

[0004] Meanwhile, existing distribution boxes are generally equipped with corresponding heat dissipation vents, which can achieve the effect of gas exchange between the inside of the distribution box and the outside, thus helping to dissipate the heat inside the distribution box. However, if a fire occurs inside the distribution box, the heat dissipation vents do not have an automatic sealing effect, which allows air to circulate between the inside of the distribution box and the outside. At this time, the outside air can provide oxygen to the fire source in the distribution box, allowing it to continue to spread, thus causing a serious fire accident.

[0005] Furthermore, existing distribution boxes vary in size, but they contain a large number of electronic devices. They typically have a sliding door on the front so that staff can access the electronic equipment for inspection or maintenance. However, given the limited space inside the distribution box and the large number of electronic devices, the staff's operational space is extremely limited, which in turn affects their work efficiency.

[0006] Based on this, the present invention designs a novel active fireproof distribution box to solve the above problems. Summary of the Invention

[0007] The purpose of this invention is to provide a novel active fireproof distribution box to address the shortcomings of the prior art as described in the background section.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a novel active fireproof distribution box, comprising a box body, with round shafts fixedly installed at the rear of both sides of the inner cavity of the box body. A movable shell is movably fitted onto the outer surface of the round shafts, and the outer surface of the movable shell is movably connected to the inner wall of the box body. An electronic device body located between the round shafts is fixedly installed on the front of the inner cavity of the box body. A protective shell is fixedly installed on the top of the front of the movable shell, and a controller is fixedly installed inside the protective shell. Smoke sensors are fixedly installed on both the front and rear sides of the top of the inner cavity of the box body. A top cover is fixedly installed on the top of the box, and a high-pressure chamber is opened inside the top cover. A solenoid valve located directly below the high-pressure chamber is fixedly installed inside the top cover. A bottom cavity located directly below the solenoid valve is opened at the bottom of the top of the box. A circular airbag located below the bottom cavity is fixedly installed on the top of the box. A vertical sleeve is fixedly fitted inside the top of the box. The bottom end of the vertical sleeve penetrates the box and extends into the interior of the circular airbag. A moving plate is movably fitted inside the bottom cavity. A first needle is fixedly installed at the bottom of the moving plate. The bottom end of the first needle is located inside the vertical sleeve.

[0009] As a further embodiment of the present invention, heat dissipation vents are provided on the top of both sides of the movable shell. A fixed shaft is fixedly installed inside the heat dissipation vent, and a movable plate is movably sleeved on the outer surface of the fixed shaft. The bottom end of the movable plate is located outside the movable shell, and a connecting block is fixedly installed on the top end of the movable plate. The other end of the connecting block is located inside the housing.

[0010] As a further embodiment of the present invention, a connecting spring is fixedly installed in the middle of the inner surface of the connecting block, and the other end of the connecting spring is fixedly connected to the inner wall of the heat dissipation port body. An arc-shaped airbag located on the front and rear sides of the connecting spring is fixedly installed on the inner surface of the connecting block, and the other end of the arc-shaped airbag is fixedly connected to the inner wall of the heat dissipation port body.

[0011] As a further embodiment of the present invention, the movable shell has a cavity located on the left side of the arc-shaped airbag. A movable block is movably fitted inside the cavity. A second needle is fixedly installed on both the front and rear sides of the right side of the movable block. A first spring is fixedly installed on the right side of the movable block outside the second needle. The other end of the first spring is fixedly connected to the inner wall of the cavity. A second spring is fixedly installed on both the front and rear sides of the left side of the movable block. The other end of the second spring is fixedly connected to the inner wall of the cavity. An opening is opened on the inner wall of the movable shell on the right side of the second needle. The second needle and the opening are on the same plane.

[0012] As a further embodiment of the present invention, a fixed shell is fixedly installed at the top of the inner cavity of the box, located between the circular airbags. A lifting plate is movably sleeved inside the fixed shell. A vertical rod is fixedly installed at the top of the lifting plate. The top end of the vertical rod penetrates the box and extends into the bottom cavity and is fixedly connected to the bottom of the moving plate. A flexible spring is movably sleeved on the outer surface of the vertical rod, located between the inner wall of the box and the top of the lifting plate. One end of the flexible spring is fixedly connected to the inner wall of the box, and the other end of the flexible spring is fixedly connected to the top of the lifting plate.

[0013] As a further embodiment of the present invention, a fixing tube is fixedly connected to the middle part of the bottom end of the fixing shell, and a metal flexible tube is fixedly connected to the other end of the fixing tube. The other end of the metal flexible tube is fixedly connected to the inner surface of the movable shell.

[0014] As a further embodiment of the present invention, the interior of the movable shell is provided with an inner channel located above the cavity, and the interior of the inner channel communicates with both the cavity and the interior of the metal hose.

[0015] As a further aspect of the present invention, the number of movable shells is two, the two movable shells are movably connected to each other, and a first magnetic block and a second magnetic block are respectively fixedly installed inside the corresponding side of the two movable shells.

[0016] As a further aspect of the present invention, the first magnetic block and the second magnetic block have the same external dimensions, and the magnetic poles of the first magnetic block and the second magnetic block are opposite.

[0017] As a further embodiment of the present invention, the number of the circular airbags is twelve, the twelve circular airbags are of the same size, and the twelve circular airbags are distributed at equal distances from each other on the top of the inner cavity of the box.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. This invention, by setting up a high-pressure chamber, a solenoid valve, a circular airbag, and a first piercing needle, allows for the effective extinguishing of fires inside the enclosure when a fire occurs. When a fire breaks out inside the enclosure, dense smoke is continuously generated. Two smoke sensors detect this smoke and send a signal to the controller, which then opens the solenoid valve. High-pressure gas from the high-pressure chamber enters the bottom chamber, causing the moving plate to drive the first piercing needle downwards. The bottom of the first piercing needle punctures the circular airbag, causing it to burst. The dry powder inside the airbag then scatters downwards, effectively extinguishing the fire inside the enclosure. This proactive fire prevention method prevents the fire from spreading and protects the safety of people and property.

[0020] 2. This invention, by incorporating an arc-shaped airbag, a connecting spring, a second needle, and a lifting plate, allows the lifting plate to move downwards within the fixed housing as the moving plate drives the vertical rod downwards. This lifting plate compresses the air inside the fixed housing, which then passes through the fixed pipe, metal hose, and inner channel before entering the cavity. The moving block inside the cavity, under air pressure, moves the second needle to the right, eventually puncturing the arc-shaped airbag. The bursting of the two airbags releases the expansion support of the connecting block. The connecting block then experiences tension from the connecting spring, causing the moving plate to rotate around the fixed axis. This allows the moving plate to enter the heat dissipation vent body, sealing it and achieving a seal against external forces and the interior of the enclosure. This effectively prevents external oxygen from entering the enclosure. The combustion of a fire source inside the enclosure continuously consumes oxygen, leading to a decrease in fire intensity. Combined with the dry powder effect, this effectively accelerates the extinguishing of the fire, thus improving the safety of the distribution box.

[0021] 3. By setting up a circular shaft, a movable shell, a first magnetic block, and a second magnetic block, the operator can pull the handle to rotate the movable shell 90 degrees around the circular shaft. At this time, the first magnetic block and the second magnetic block will separate, and the electronic device body inside the housing can be exposed to the operator's field of vision. This not only facilitates the operator's observation of the electronic device body, but also expands the operator's work space and improves the operator's work efficiency. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 3 This is a cross-sectional view of the arc-shaped airbag of the present invention;

[0025] Figure 4 This is a schematic cross-sectional view of the side of the present invention;

[0026] Figure 5 This is a cross-sectional view of the top of the present invention;

[0027] Figure 6 This is a cross-sectional view of the movable shell of the present invention;

[0028] Figure 7 This is a cross-sectional view of the protective shell of the present invention;

[0029] Figure 8 This is a cross-sectional view of the top of the movable shell of the present invention;

[0030] Figure 9 This is a bottom view of the circular airbag structure of the present invention;

[0031] Figure 10 for Figure 2 A magnified schematic diagram of the partial structure at point A in the middle;

[0032] Figure 11 for Figure 3 A magnified schematic diagram of the local structure at point B;

[0033] Figure 12 This is a schematic diagram of the internal structure of the cavity in this invention.

[0034] The attached diagram lists the components represented by each number as follows:

[0035] 1. Housing; 2. Round shaft; 3. Movable shell; 4. Electronic equipment body; 5. Protective shell; 6. Controller; 7. Smoke sensor; 8. High-pressure chamber; 9. Solenoid valve; 10. Bottom cavity; 11. Circular airbag; 12. Vertical sleeve; 13. Moving plate; 14. First needle; 15. Top cover; 16. Heat dissipation vent body; 17. Fixed shaft; 18. Movable plate; 19. Connecting block; 20. Arc-shaped airbag; 21. Connecting spring; 22. Cavity; 23. Movable block; 24. First spring; 25. Second spring; 26. Through port; 27. Second needle; 28. Inner channel; 29. ​​Fixed shell; 30. Fixed tube; 31. Metal flexible tube; 32. Vertical rod; 33. Lifting plate; 34. Flexible spring; 35. First magnetic block; 36. Second magnetic block. Detailed Implementation

[0036] Please see Figure 1-12This invention provides a technical solution: a novel active fireproof distribution box, comprising a box body 1, with round shafts 2 fixedly installed on the rear sides of both sides of the inner cavity of the box body 1, and a movable shell 3 movably sleeved on the outer surface of the round shafts 2, the outer surface of the movable shell 3 being movably connected to the inner wall of the box body 1; an electronic device body 4 located between the round shafts 2 is fixedly installed on the front of the inner cavity of the box body 1; a protective shell 5 is fixedly installed on the top of the front of the movable shell 3, and a controller 6 is fixedly installed inside the protective shell 5; smoke sensors 7 are fixedly installed on the front and rear sides of the top of the inner cavity of the box body 1, the output end of the smoke sensor 7 is electrically connected to the input end of the controller 6 through a wire, and the output end of the controller 6 is electrically connected to the input end of the solenoid valve 9 through a wire; a top cover 15 is fixedly installed on the top of the box body 1, and a high-pressure chamber 8 is opened inside the top cover 15, the high-pressure chamber 8 containing high-pressure gas. The solenoid valve 9 controls the flow and release of high-pressure gas inside the high-pressure chamber 8. The solenoid valve 9 is fixedly installed inside the top cover 15, located directly below the high-pressure chamber 8. The bottom of the top cover 15 has a bottom cavity 10 located directly below the solenoid valve 9. The top of the inner cavity of the box body 1 has a circular airbag 11 fixedly installed below the bottom cavity 10. The circular airbag 11 contains dry powder. When the circular airbag 11 is punctured, the dry powder inside can burst and splash out inside the box body 1 to extinguish the fire source inside the box body 1. The top of the box body 1 has a vertical sleeve 12 fixedly fitted inside. The bottom end of the vertical sleeve 12 penetrates the box body 1 and extends into the interior of the circular airbag 11. The bottom cavity 10 has a movable plate 13 fitted inside. The bottom of the movable plate 13 has a first needle 14 fixedly installed at the bottom. The bottom end of the first needle 14 is located inside the vertical sleeve 12.

[0037] When a fire occurs inside the housing 1, dense smoke will be generated inside the housing 1. The smoke sensor 7 will detect the dense smoke and transmit the signal to the controller 6. At this time, the controller 6 will control the solenoid valve 9 to open. The high-pressure gas inside the high-pressure chamber 8 will enter the bottom chamber 10 through the solenoid valve 9 and push the moving plate 13 to move downward. The moving plate 13 can drive the first needle 14 to move downward. Finally, the bottom end of the first needle 14 will contact the inner surface of the circular airbag 11, thereby puncturing the circular airbag 11 and causing it to explode. At this time, the dry powder stored inside the circular airbag 11 will scatter and fall inside the housing 1, which can effectively extinguish the fire inside the housing 1.

[0038] By setting up a high-pressure chamber 8, a solenoid valve 9, a circular airbag 11, and a first piercing needle 14, when a fire occurs inside the housing 1, dense smoke will continuously be generated inside the housing 1. At this time, two smoke sensors 7 can detect the generation of dense smoke and send a signal to the controller 6. The controller 6 will then control the solenoid valve 9 to open. At this time, the high-pressure gas inside the high-pressure chamber 8 can enter the bottom chamber 10. Under the action of air pressure, the moving plate 13 can drive the first piercing needle 14 to move downward. Finally, the bottom end of the first piercing needle 14 can pierce the circular airbag 11, causing it to burst. At this time, the dry powder inside the circular airbag 11 can scatter downwards, thereby achieving the effect of extinguishing the fire source inside the housing 1. This effectively achieves the purpose of active fire prevention, avoids the spread of fire, and protects the personal and property safety of the public.

[0039] The movable shell 3 has heat dissipation vents 16 on the top of both sides. A fixed shaft 17 is fixedly installed inside the heat dissipation vent 16. A movable plate 18 is movably sleeved on the outer surface of the fixed shaft 17. The bottom end of the movable plate 18 is located outside the movable shell 3. A connecting block 19 is fixedly installed on the top end of the movable plate 18. The other end of the connecting block 19 is located inside the housing 1.

[0040] The movable plate 18 is located on the front and rear sides of the outer end of the movable shell 3, which is closed, thus preventing rainwater from entering the interior of the box 1 through the heat dissipation port body 16 from the front and rear sides of the bottom of the movable plate 18. This design not only achieves good ventilation and heat dissipation, but also prevents rainwater from entering at an angle.

[0041] A connecting spring 21 is fixedly installed in the middle of the inner surface of the connecting block 19. The other end of the connecting spring 21 is fixedly connected to the inner wall of the heat dissipation port body 16. An arc-shaped airbag 20 located on the front and rear sides of the connecting spring 21 is fixedly installed on the inner surface of the connecting block 19. The other end of the arc-shaped airbag 20 is fixedly connected to the inner wall of the heat dissipation port body 16.

[0042] The connecting spring 21 is in a stretched state at this time, so it will exert a pulling force on the connecting block 19. However, the arc-shaped airbag 20 is filled with gas, so the arc-shaped airbag 20 will support the connecting block 19 and prevent it from rotating due to the pulling force of the connecting spring 21.

[0043] The movable shell 3 has a cavity 22 located to the left of the arc-shaped airbag 20. A movable block 23 is movably fitted inside the cavity 22. A second needle 27 is fixedly installed on the front and rear sides of the right side of the movable block 23. A first spring 24 is fixedly installed on the right side of the movable block 23 outside the second needle 27. The other end of the first spring 24 is fixedly connected to the inner wall of the cavity 22. A second spring 25 is fixedly installed on the front and rear sides of the left side of the movable block 23. The other end of the second spring 25 is fixedly connected to the inner wall of the cavity 22. An opening 26 is opened on the inner wall of the movable shell 3 to the right of the second needle 27. The second needle 27 and the opening 26 are on the same plane.

[0044] Due to the cooperation between the first spring 24 and the second spring 25, the position of the movable block 23 can be well maintained. When the movable shell 3 is subjected to external impact or vibration when closed by the staff, the movable block 23 may move left and right. At this time, due to the cooperation between the first spring 24 and the second spring 25, the movement amplitude of the movable block 23 can be reduced, and the position can eventually be reset.

[0045] The top of the inner cavity of the housing 1 is fixedly installed with a fixed shell 29 located between the circular airbags 11. A lifting plate 33 is movably sleeved inside the fixed shell 29. A vertical rod 32 is fixedly installed on the top of the lifting plate 33. The top of the vertical rod 32 passes through the housing 1 and extends into the bottom cavity 10 and is fixedly connected to the bottom of the moving plate 13. A flexible spring 34 is movably sleeved on the outer surface of the vertical rod 32 between the inner wall of the housing 1 and the top of the lifting plate 33. One end of the flexible spring 34 is fixedly connected to the inner wall of the housing 1, and the other end of the flexible spring 34 is fixedly connected to the top of the lifting plate 33.

[0046] Due to the design of the flexible spring 34, it can provide overall support for the moving plate 13, the vertical rod 32 and the lifting plate 33, preventing them from falling downwards. The outer surface of the lifting plate 33 and the inner surface of the fixed shell 29 are both smooth, which will make the lifting plate 33 move more smoothly inside the fixed shell 29.

[0047] The fixed shell 29 has a fixed tube 30 fixedly connected to the middle of its bottom end, and a metal hose 31 fixedly connected to the other end of the fixed tube 30. The other end of the metal hose 31 is fixedly connected to the inner surface of the movable shell 3.

[0048] Since the metal flexible hose 31 has the ability to deform and bend, it can effectively meet the rotation requirements of the movable shell 3 as a whole around the circular shaft 2, without causing adverse interference to its rotation, thus ensuring that the staff can use it normally.

[0049] The movable shell 3 has an inner channel 28 located above the cavity 22, and the interior of the inner channel 28 is connected to the interior of the cavity 22 and the interior of the metal hose 31.

[0050] When the moving plate 13 is driven by high-pressure gas to move the first needle 14 downward, it will also drive the vertical rod 32 downward. At this time, the lifting plate 33 will move downward inside the fixed shell 29 and compress the gas inside the fixed shell 29, allowing it to enter the cavity 22 through the fixed tube 30, the metal hose 31 and the inner channel 28 in sequence. Under the action of air pressure, the moving block 23 will drive the second needle 27 to move to the right. Finally, the right end of the second needle 27 will pass through the opening 26 and puncture the arc-shaped airbag 2. 0, causing it to explode. At this point, the connecting block 19 will lose the expansion and support effect of the two arc-shaped airbags 20, and will be pulled by the connecting spring 21, causing it to drive the movable plate 18 to rotate around the fixed shaft 17. Finally, the bottom end of the movable plate 18 will be screwed into the interior of the heat dissipation port body 16, thereby sealing the heat dissipation port body 16 and preventing the air from circulating between the outside and the inside of the box 1, achieving a sealing effect on the inside of the box 1, effectively controlling the fire. Furthermore, through the action of dry powder, the fire source will be effectively extinguished more quickly.

[0051] By setting up the arc-shaped airbag 20, connecting spring 21, second needle 27, and lifting plate 33, when the moving plate 13 drives the vertical rod 32 to move downward, the lifting plate 33 will also move downward inside the fixed shell 29, compressing the air inside the fixed shell 29 and passing it through the fixed tube 30, metal hose 31, and inner channel 28 to finally enter the cavity 22. At this time, the movable block 23 inside the cavity 22 will be driven by air pressure, which will drive the second needle 27 to move to the right. Finally, the second needle 27 will pass through the opening 26 to puncture the arc-shaped airbag 20. At this time, the bursting of the two arc-shaped airbags 20 will release the connection between the two blocks. With the expansion support effect of 19, the connecting block 19 will be pulled by the connecting spring 21, which will drive the movable plate 18 to rotate around the fixed shaft 17, so that the movable plate 18 enters the interior of the heat dissipation port body 16 and seals the heat dissipation port body 16. This achieves the sealing effect between the outside world and the inside of the box 1, effectively preventing external oxygen from entering the inside of the box 1. At this time, the combustion of the fire source inside the box 1 will continuously consume oxygen. As the oxygen decreases, the fire will decrease. With the effect of dry powder, the fire source will be extinguished more quickly, thereby improving the safety of the distribution box.

[0052] There are two movable shells 3, which are movably connected to each other. The first magnetic block 35 and the second magnetic block 36 are fixedly installed inside the corresponding side of the two movable shells 3.

[0053] When staff are performing routine maintenance and repair on the electronic equipment body 4 inside the enclosure 1, they can pull the handle on the front of the movable shell 3 to open it. At this time, the first magnetic block 35 and the second magnetic block 36 will separate, allowing a large area of ​​the electronic equipment body 4 inside the enclosure 1 to be exposed to the outside world, after which maintenance and repair work can be carried out.

[0054] By setting up the circular shaft 2, the movable shell 3, the first magnetic block 35, and the second magnetic block 36, the operator can pull the handle to make the movable shell 3 rotate 90 degrees around the circular shaft 2. At this time, the first magnetic block 35 and the second magnetic block 36 will separate, and the electronic equipment body 4 inside the housing 1 can be exposed to the operator's field of vision. This not only facilitates the operator's observation of the electronic equipment body 4, but also expands the operator's work space and improves the operator's work efficiency.

[0055] The first magnetic block 35 and the second magnetic block 36 have the same external dimensions, and the magnetic poles of the first magnetic block 35 are opposite to those of the second magnetic block 36.

[0056] The magnetic poles of the first magnetic block 35 and the second magnetic block 36 are opposite, which will result in a good magnetic attraction between the first magnetic block 35 and the second magnetic block 36. This will allow the two movable shells 3 to fit tightly together, ensuring a good overall sealing effect for the box 1. At the same time, for safety reasons, the staff can install anti-theft lock structures on the outside of the two movable shells 3.

[0057] The number of circular airbags 11 is twelve. The twelve circular airbags 11 are the same size and are distributed at equal distances from each other on the top of the inner cavity of the box 1.

[0058] Due to the design of the twelve circular airbags 11, when they burst, the dry powder can be scattered in all directions, which can fully cover the fire source and improve the extinguishing effect.

[0059] Working principle:

[0060] When a fire occurs inside the housing 1, dense smoke will be generated inside the housing 1. The smoke sensor 7 will detect the dense smoke and transmit the signal to the controller 6. At this time, the controller 6 will control the solenoid valve 9 to open. The high-pressure gas inside the high-pressure chamber 8 will enter the bottom chamber 10 through the solenoid valve 9 and push the moving plate 13 to move downward. The moving plate 13 can drive the first needle 14 to move downward. Finally, the bottom end of the first needle 14 will contact the inner surface of the circular airbag 11, thereby puncturing the circular airbag 11 and causing it to explode. At this time, the dry powder stored inside the circular airbag 11 will scatter and fall inside the housing 1, which can effectively extinguish the fire inside the housing 1.

[0061] When the moving plate 13 is driven by high-pressure gas to move the first needle 14 downward, it will also drive the vertical rod 32 downward. At this time, the lifting plate 33 will move downward inside the fixed shell 29 and compress the gas inside the fixed shell 29, allowing it to enter the cavity 22 through the fixed tube 30, the metal hose 31 and the inner channel 28 in sequence. Under the action of air pressure, the moving block 23 will drive the second needle 27 to move to the right. Finally, the right end of the second needle 27 will pass through the opening 26 and puncture the arc-shaped airbag 2. 0, causing it to explode. At this point, the connecting block 19 will lose the expansion and support effect of the two arc-shaped airbags 20, and will be pulled by the connecting spring 21, causing it to drive the movable plate 18 to rotate around the fixed shaft 17. Finally, the bottom end of the movable plate 18 will be screwed into the interior of the heat dissipation port body 16, thereby sealing the heat dissipation port body 16 and preventing the air from circulating between the outside and the inside of the box 1, achieving a sealing effect on the inside of the box 1, effectively controlling the fire. Furthermore, through the action of dry powder, the fire source will be effectively extinguished more quickly.

[0062] When staff are performing routine maintenance and repair on the electronic equipment body 4 inside the enclosure 1, they can pull the handle on the front of the movable shell 3 to open it. At this time, the first magnetic block 35 and the second magnetic block 36 will separate, allowing a large area of ​​the electronic equipment body 4 inside the enclosure 1 to be exposed to the outside world, after which maintenance and repair work can be carried out.

Claims

1. A novel active fireproof distribution box, comprising a box body (1), characterized in that: A round shaft (2) is fixedly installed on the rear of both sides of the inner cavity of the box (1). A movable shell (3) is movably sleeved on the outer surface of the round shaft (2). The outer surface of the movable shell (3) is movably connected to the inner wall of the box (1). An electronic device body (4) located between the round shafts (2) is fixedly installed on the front of the inner cavity of the box (1). A protective shell (5) is fixedly installed on the top of the front of the movable shell (3). A controller (6) is fixedly installed inside the protective shell (5). Smoke sensors (7) are fixedly installed on both the front and rear sides of the top of the inner cavity of the box (1). A top cover (15) is fixedly installed on the top of the box (1). A high-pressure chamber (8) is opened inside the top cover (15). The top cover (15) is fixedly installed with a solenoid valve (9) located directly below the high pressure chamber (8). The bottom of the top cover (15) is provided with a bottom cavity (10) located directly below the solenoid valve (9). The top of the inner cavity of the box (1) is fixedly installed with a circular airbag (11) located below the bottom cavity (10). The top of the box (1) is fixedly fitted with a vertical sleeve (12). The bottom end of the vertical sleeve (12) penetrates the box (1) and extends into the interior of the circular airbag (11). The bottom cavity (10) is movably fitted with a moving plate (13). The bottom of the moving plate (13) is fixedly installed with a first needle (14). The bottom end of the first needle (14) is located inside the vertical sleeve (12). The movable shell (3) has a cavity (22) located to the left of the arc-shaped airbag (20) inside. A movable block (23) is movably sleeved inside the cavity (22). A second needle (27) is fixedly installed on the front and back sides of the right side of the movable block (23). A first spring (24) is fixedly installed on the right side of the movable block (23) outside the second needle (27). The other end of the first spring (24) is fixedly connected to the inner wall of the cavity (22). A second spring (25) is fixedly installed on the front and back sides of the left side of the movable block (23). The other end of the second spring (25) is fixedly connected to the inner wall of the cavity (22). The inner wall of the movable shell (3) has a through-hole (26) located to the right of the second needle (27). The second needle (27) and the through-hole (26) are on the same plane. A fixed shell (29) is fixedly installed at the top of the inner cavity of the box (1) between the circular airbags (11). A lifting plate (33) is movably sleeved inside the fixed shell (29). A vertical rod (32) is fixedly installed at the top of the lifting plate (33). The top end of the vertical rod (32) penetrates the box (1) and extends into the bottom cavity (10) and is fixedly connected to the bottom of the moving plate (13). A flexible spring (34) is movably sleeved on the outer surface of the vertical rod (32) between the inner wall of the box (1) and the top of the lifting plate (33). One end of the flexible spring (34) is fixedly connected to the inner wall of the box (1), and the other end of the flexible spring (34) is fixedly connected to the top of the lifting plate (33). A fixed tube (30) is fixedly connected to the middle of the bottom end of the fixed shell (29), and a metal hose (31) is fixedly connected to the other end of the fixed tube (30). The other end of the metal hose (31) is fixedly connected to the inner surface of the movable shell (3).

2. The novel active fireproof distribution box according to claim 1, characterized in that: The top of both sides of the movable shell (3) is provided with heat dissipation vent bodies (16). A fixed shaft (17) is fixedly installed inside the heat dissipation vent body (16). A movable plate (18) is movably sleeved on the outer surface of the fixed shaft (17). The bottom end of the movable plate (18) is located outside the movable shell (3). A connecting block (19) is fixedly installed at the top of the movable plate (18). The other end of the connecting block (19) is located inside the box body (1).

3. A novel active fireproof distribution box according to claim 2, characterized in that: A connecting spring (21) is fixedly installed in the middle of the inner surface of the connecting block (19). The other end of the connecting spring (21) is fixedly connected to the inner wall of the heat dissipation port body (16). An arc-shaped airbag (20) located on the front and rear sides of the connecting spring (21) is fixedly installed on the inner surface of the connecting block (19). The other end of the arc-shaped airbag (20) is fixedly connected to the inner wall of the heat dissipation port body (16).

4. A novel active fireproof distribution box according to claim 1, characterized in that: The movable shell (3) has an inner channel (28) located above the cavity (22) inside, and the interior of the inner channel (28) is connected to the interior of the cavity (22) and the metal hose (31).

5. A novel active fireproof distribution box according to claim 1, characterized in that: The number of movable shells (3) is two, and the two movable shells (3) are movably connected to each other. The first magnetic block (35) and the second magnetic block (36) are respectively fixedly installed inside the corresponding side of the two movable shells (3).

6. A novel active fireproof distribution box according to claim 5, characterized in that: The first magnetic block (35) and the second magnetic block (36) have the same external dimensions, and the magnetic poles of the first magnetic block (35) are opposite to those of the second magnetic block (36).

7. A novel active fireproof distribution box according to claim 1, characterized in that: The number of the twelve circular airbags (11) is twelve. The twelve circular airbags (11) are the same size and are distributed at equal distances from each other on the top of the inner cavity of the box (1).

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