Self-closed flame-retardant communication cabinet
By employing a self-sealing design and a carbon dioxide injection system, the problem of oxygen-assisted combustion in the event of a fire in the communication cabinet was solved, achieving effective fire control and smoke monitoring, and ensuring equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-26
- Publication Date
- 2026-03-31
AI Technical Summary
When existing communication cabinets catch fire, outside air can easily fuel the fire through the ventilation holes, causing the fire to spread, and there is a lack of effective flame retardant and smoke monitoring methods.
A self-sealing flame-retardant communication cabinet was designed. A drive component controls the movement of the sealing plate to close the heat dissipation holes. A carbon dioxide injection system and a dynamic gas collection hood smoke monitoring system are installed inside the cabinet to form a sealed state and inject carbon dioxide to block the oxygen supply and monitor the smoke.
Effectively block oxygen supply, control the spread of fire, improve smoke monitoring sensitivity, reduce losses, and ensure equipment safety.
Smart Images
Figure CN121772133A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of communication cabinet technology, specifically a self-sealing flame-retardant communication cabinet. Background Technology
[0002] A communication cabinet is a freestanding or self-supporting enclosure used to house electrical or electronic equipment. It provides an outdoor physical working environment and security system for wireless communication sites or wired network site workstations. As the physical foundation of a network communication system, the communication cabinet undertakes key functions such as equipment installation, environmental control, and security protection.
[0003] To prevent the internal temperature of existing communication cabinets from rising, ventilation holes are opened on the sides of the cabinet. While this method can improve the heat dissipation of the cabinet, if the cabinet catches fire due to reasons such as leakage, short circuit, overload, excessive contact resistance, or insulation damage, outside air can easily enter the cabinet through the ventilation holes, thus fueling the fire and causing it to spread.
[0004] Therefore, the present invention provides a self-sealing flame-retardant communication cabinet. Summary of the Invention
[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.
[0006] The technical solution adopted by the present invention to solve its technical problem is as follows: The present invention provides a self-sealing flame-retardant communication cabinet, comprising a cabinet body, a shielding top plate fixedly installed on the top of the cabinet body, a base symmetrically fixedly installed on the bottom of the cabinet body, heat dissipation holes on both sides of the cabinet body, two sealing plates provided on the inner wall of the cabinet body, both sealing plates being in close contact with the inner wall of the cabinet body, and long grooves provided on the outer wall of each sealing plate, the long grooves communicating with the heat dissipation holes respectively, a driving assembly provided on the top of the cabinet body, and a smoke sensor provided inside the cabinet body.
[0007] Preferably, the drive assembly includes a cylinder, which is fixedly installed on the top of the cabinet. The output shaft of the cylinder passes through the cabinet and is fixedly connected to one of the sealing plates. A bottom connecting belt is fixedly installed between the bottoms of the sealing plates, and a top connecting belt is fixedly installed between the tops of the sealing plates. Two sets of guide wheels are fixedly installed on the inner wall of the cabinet, and the bottom connecting belt and the top connecting belt are respectively connected to the two sets of guide wheels for transmission.
[0008] Preferably, a carbon dioxide containment box is fixedly installed on the top and bottom of the cabinet. Several spray holes are opened on the adjacent side of the carbon dioxide containment box. A torsion spring shaft is fixedly installed on the adjacent side of the carbon dioxide containment box. A sealing cover is installed on the outer wall of the torsion spring shaft. The sealing cover fits in close to the carbon dioxide containment box. A stop block is fixedly installed on the adjacent side of the carbon dioxide containment box. The stop block abuts against the sealing cover. A compression component is provided on one side of the sealing cover.
[0009] Preferably, the extrusion assembly includes a plurality of extrusion blocks, which are respectively fixedly installed on both sides of the bottom connecting strip and the top connecting strip, and a force-bearing rod is fixedly installed on the inner wall of the sealing cover.
[0010] Preferably, a swing plate is provided on the inner side of the cabinet, a gas collection hood is fixedly installed at one end of the swing plate, the smoke sensor is fixedly installed on the inner wall of the gas collection hood, a number of ventilation holes are opened on the top of the gas collection hood, and a swing assembly is provided at the bottom of the carbon dioxide container above.
[0011] Preferably, the swing assembly includes a vertical plate, the bottom of the carbon dioxide container above is fixedly connected to the top of the vertical plate, a swing shaft is rotatably mounted on the inner wall of the vertical plate, the outer wall of the swing shaft is fixedly connected to the inner wall of the swing plate, a gear A is fixedly mounted on the outer wall of the swing shaft, and a drive tooth is fixedly mounted on the bottom of the top connecting belt, the teeth of the drive tooth meshing with the teeth of the gear A.
[0012] Preferably, two sets of limiting seats are fixedly installed on the inner wall of the cabinet, and the two sets of limiting seats are slidably connected to two sealing plates respectively. The inner wall of the gas collection hood is symmetrically fixedly installed with air guide plates, and the smoke sensor is located between the two air guide plates.
[0013] Preferably, positioning plates are symmetrically fixedly installed on the outer walls of the sealing plates, a rotating shaft is rotatably installed on the inner wall of the positioning plates, a fan is fixedly installed at one end of the rotating shaft, and a rotating assembly is provided on one side of the limiting seat.
[0014] Preferably, the rotating assembly includes a plurality of racks, each rack being fixedly mounted on the outer wall of the limiting seat, and a gear B being fixedly mounted on the outer wall of the rotating shaft, the teeth of the gear B meshing with the teeth of the racks respectively.
[0015] Preferably, the outer wall of the cabinet is hinged to a door, the inner wall of the door is fixedly installed with a transparent observation window, and both the door and the inner wall of the cabinet are fixedly installed with sealing strips.
[0016] The beneficial effects of this invention are as follows: 1. The self-sealing flame-retardant communication cabinet of the present invention, by activating the drive component, causes two sealing plates to move in opposite vertical directions. After the sealing plates move, the long groove and the heat dissipation hole are misaligned, thereby sealing the inside of the cabinet. The rapid sealing design can effectively block external oxygen from entering the cabinet, cut off the oxygen supply for combustion, thereby suppressing the spread of fire and buying valuable time to control the fire and reduce losses.
[0017] 2. The self-sealing flame-retardant communication cabinet of the present invention can quickly cool the upper air by top spraying, forming a low-temperature gas barrier to inhibit the upward convection of heat, and cool the unburned area below by bottom spraying, preventing the flame from spreading downward or laterally due to oxygen replenishment. The two-pronged approach breaks the convection circulation and controls the fire within the initial combustion range. With the synergistic effect of top and bottom spraying, carbon dioxide gas forms a three-dimensional "pincer attack" distribution in the cabinet, quickly filling all space gaps and completely eliminating the risk of local residual fire sources.
[0018] 3. The self-sealing flame-retardant communication cabinet described in this invention uses a gas collection hood that swings back and forth inside the cabinet, covering a larger area as it swings. This swinging design allows the gas collection hood to act like a "scanner," sampling the air at different locations within the cabinet. Even if the smoke is scattered or concealed in the early stages of a fire, it can still be captured by the gas collection hood in a timely manner, greatly improving the comprehensiveness and accuracy of smoke monitoring and helping to detect fires earlier. The smoke sensor, located inside the gas collection hood, can contact any possible smoke particles more promptly. Compared to static collection, this dynamic air collection method can more effectively improve the sensitivity of smoke detection and reduce the possibility of missed detections. Attached Figure Description
[0019] The invention will now be further described with reference to the accompanying drawings.
[0020] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the cabinet of the present invention; Figure 3 This is a schematic diagram of the sealing plate structure of the present invention; Figure 4 This is a schematic diagram of the structure of the carbon dioxide containment box of the present invention; Figure 5 This is a schematic diagram of the sealing cap structure of the present invention; Figure 6 This is a schematic diagram of the structure of the swing plate of the present invention; Figure 7 This is a cross-sectional view of the gas collection hood structure of the present invention; Figure 8 This is a schematic diagram of the fan structure of the present invention; Figure 9 This is a schematic diagram of the positioning plate structure of the present invention.
[0021] In the diagram: 1. Cabinet; 2. Top panel; 3. Base; 4. Ventilation holes; 5. Sealing plate; 6. Long slot; 7. Cylinder; 8. Bottom connecting strip; 9. Top connecting strip; 10. Guide wheel; 11. Carbon dioxide container; 12. Torsion spring shaft; 13. Sealing cover; 14. Stop block; 15. Extrusion block; 16. Force rod; 17. Swing plate; 18. Gas collection hood; 19. Smoke sensor; 20. Ventilation hole; 21. Vertical plate; 22. Swing shaft; 23. Gear A; 24. Drive gear; 25. Limit seat; 26. Air guide plate; 27. Positioning plate; 28. Rotating shaft; 29. Fan; 30. Rack; 31. Gear B; 32. Door; 33. Transparent observation window; 34. Sealing strip. Detailed Implementation
[0022] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.
[0023] like Figures 1 to 3 As shown in the embodiment of the present invention, a self-sealing flame-retardant communication cabinet includes a cabinet body 1. A shielding top plate 2 is fixedly installed on the top of the cabinet body 1, and a base 3 is symmetrically fixedly installed on the bottom of the cabinet body 1. Ventilation holes 4 are provided on both sides of the cabinet body 1. Two sealing plates 5 are provided on the inner wall of the cabinet body 1, and both sealing plates 5 are in close contact with the inner wall of the cabinet body 1. Long grooves 6 are provided on the outer wall of each sealing plate 5, and the long grooves 6 communicate with the ventilation holes 4. A drive assembly is provided on the top of the cabinet body 1, and a smoke sensor 19 is provided inside the cabinet body 1. In the initial state, the long grooves 6 communicate with the ventilation holes 4. The system maintains a continuous connection, forming a natural ventilation channel. Air can circulate through the heat dissipation holes 4 and the long slot 6 to dissipate heat from the inside of the cabinet 1. When the smoke sensor 19 detects a fire inside the cabinet 1, the drive assembly will activate to move the two sealing plates 5 in opposite vertical directions. After the sealing plates 5 move, the long slot 6 will be offset from the heat dissipation holes 4, thus sealing the inside of the cabinet 1. The rapid sealing design can effectively block external oxygen from entering the cabinet 1, cutting off the oxygen supply for combustion, thereby suppressing the spread of fire and buying valuable time to control the fire and reduce losses.
[0024] like Figures 1 to 3As shown, the drive assembly includes a cylinder 7, which is fixedly installed on the top of the cabinet 1. The output shaft of the cylinder 7 passes through the cabinet 1 and is fixedly connected to one of the sealing plates 5. A bottom connecting strap 8 is fixedly installed between the bottoms of the sealing plates 5, and a top connecting strap 9 is fixedly installed between the tops of the sealing plates 5. Two sets of guide wheels 10 are fixedly installed on the inner wall of the cabinet 1. The bottom connecting strap 8 and the top connecting strap 9 are respectively connected to the two sets of guide wheels 10 for transmission. In the event of a fire, the cylinder 7 will extend to push one of the sealing plates 5 downward. The two sealing plates 5 are connected by the bottom connecting strap 8. The top connecting belt 9 is connected to the top connecting belt, which is guided by the guide wheel 10, causing the other sealing plate 5 to move upward. The two sealing plates 5 move in opposite directions, causing the long groove 6 and the heat dissipation hole 4 to be misaligned. Through the transmission of the connecting belt and the guide wheel 10, the synchronicity and coordination of the movement of the two sealing plates 5 are ensured, so that the long groove 6 and the heat dissipation hole 4 can be accurately and quickly misaligned, achieving reliable sealing of the cabinet 1. This solution can achieve synchronous movement of the two sealing plates 5 with only one cylinder 7, which has a significant cost advantage and can reduce the overall manufacturing cost of the cabinet.
[0025] like Figures 1 to 2 and Figures 4 to 6As shown, carbon dioxide containment tanks 11 are fixedly installed on the top and bottom of cabinet 1. Several spray holes are opened on each adjacent side of the carbon dioxide containment tank 11. Torsion spring shafts 12 are fixedly installed on each adjacent side of the carbon dioxide containment tank 11. Sealing covers 13 are installed on the outer wall of the torsion spring shafts 12, fitting snugly against the carbon dioxide containment tank 11. Stoppers 14 are fixedly installed on each adjacent side of the carbon dioxide containment tank 11, abutting against the sealing covers 13. A compression assembly is provided on one side of the sealing covers 13. At the top of cabinet 1… Both the top and bottom are equipped with carbon dioxide containment tanks 11. When the cylinder 7 extends, it moves the sealing plate 5. The bottom connecting belt 8 and the top connecting belt 9 also move due to the linkage. After the long groove 6 and the heat dissipation hole 4 are misaligned, the cylinder 7 continues to extend, causing the bottom connecting belt 8 and the top connecting belt 9 to continue moving. The continued movement of the bottom connecting belt 8 and the top connecting belt 9 will cause the extrusion assembly to push the sealing cover 13 to rotate around the torsion spring shaft 12. After the sealing cover 13 rotates, the ejection hole on the carbon dioxide containment tank 11 will open, thus releasing carbon dioxide from the top of the cabinet 1. Carbon dioxide is injected into the interior of the cabinet 1 from the top and bottom. The injection of carbon dioxide is controlled by the movement of the bottom connecting strap 8 and the top connecting strap 9. After the long slot 6 and the heat dissipation hole 4 are misaligned, the nozzle can open immediately, improving the response speed of the device. Injecting carbon dioxide while the cabinet 1 is sealed can effectively prevent the smoke and heat generated by the fire from spreading to the surrounding environment. The use of the torsion spring shaft 12 allows the sealing cover 13 to automatically reset after the external force is lost, resealing the nozzle and preventing continuous leakage of carbon dioxide. It also facilitates the subsequent maintenance and refilling of the container with carbon dioxide. When carbon dioxide is injected, the top injection can quickly cool the upper air, forming a low-temperature gas barrier and inhibiting the upward convection of heat. The bottom injection can cool the unburned area below, preventing the flame from spreading downward or horizontally due to oxygen replenishment. The two-pronged approach breaks the convection circulation and controls the fire within the initial combustion range. With the synergistic effect of the top and bottom injections, the carbon dioxide gas forms a three-dimensional distribution of "pincer attack" in the cabinet 1, quickly filling all space gaps and completely eliminating the risk of local residual fire sources.
[0026] like Figures 4 to 6 As shown, the extrusion assembly includes several extrusion blocks 15, which are fixedly installed on both sides of the bottom connecting belt 8 and the top connecting belt 9. Force rods 16 are fixedly installed on the inner wall of the sealing cover 13. After the long groove 6 and the heat dissipation hole 4 are staggered, as the bottom connecting belt 8 and the top connecting belt 9 continue to move, the extrusion blocks 15 will continue to move. When the extrusion blocks 15 move, they will squeeze the force rods 16. After the force rods 16 are squeezed, they will drive the sealing cover 13 to rotate around the torsion spring shaft 12, thereby opening the nozzle to realize the injection of carbon dioxide.
[0027] like Figures 1 to 4 and Figures 6 to 7As shown, a swing plate 17 is provided on the inner side of the cabinet 1. A gas collection hood 18 is fixedly installed at one end of the swing plate 17. A smoke sensor 19 is fixedly installed on the inner wall of the gas collection hood 18. Several ventilation holes 20 are opened on the top of the gas collection hood 18. A swing assembly is provided at the bottom of the carbon dioxide container 11 above. When the device is in normal use, the cylinder 7 will reciprocate to extend and retract, causing the sealing plate 5, the bottom connecting belt 8, and the top connecting belt 9 to move back and forth. Since the long groove 6 has a certain length, when the sealing plate 5 moves back and forth, the long groove 6 will remain connected to the heat dissipation hole 4, thus not affecting the heat dissipation of the heat dissipation hole 4. When the top connecting belt 9 moves back and forth, it will drive the swing plate 17 to swing back and forth through the swing assembly. The reciprocating oscillation of the 7th component causes the fume hood 18 to oscillate back and forth inside the cabinet 1. As the fume hood 18 oscillates inside the cabinet 1, it can cover a larger area. This oscillating design allows the fume hood 18 to sample the air at different locations inside the cabinet 1, just like a "scanner". Even if the smoke is generated in a relatively dispersed or hidden location in the early stages of a fire, it can still be captured by the fume hood 18 in time, which greatly improves the comprehensiveness and accuracy of smoke monitoring and helps to detect fires earlier. The smoke sensor 19 is located inside the fume hood 18 and can contact any possible smoke particles more promptly. Compared with static collection, this dynamic air collection method can more effectively improve the sensitivity of smoke detection and reduce the possibility of missed detection.
[0028] like Figure 6 As shown, the swing assembly includes a vertical plate 21. The bottom of the carbon dioxide container 11 above it is fixedly connected to the top of the vertical plate 21. A swing shaft 22 is rotatably mounted on the inner wall of the vertical plate 21. The outer wall of the swing shaft 22 is fixedly connected to the inner wall of the swing plate 17. A gear A23 is fixedly mounted on the outer wall of the swing shaft 22. A drive tooth 24 is fixedly mounted on the bottom of the top connecting belt 9. The teeth of the drive tooth 24 mesh with the teeth of the gear A23. When the top connecting belt 9 moves back and forth, it will drive the drive tooth 24 to move. Since the drive tooth 24 and the gear A23 are in a meshing state, when the drive tooth 24 moves back and forth, it will drive the gear A23 to rotate back and forth. When the gear A23 rotates, it will drive the swing shaft 22 to rotate. When the swing shaft 22 rotates, it will drive the swing plate 17 to rotate, thereby causing the swing plate 17 to drive the gas collection hood 18 to swing back and forth.
[0029] like Figures 1 to 3 and Figure 7As shown, two sets of limiting seats 25 are fixedly installed on the inner wall of the cabinet 1. The two sets of limiting seats 25 are slidably connected to two sealing plates 5 respectively. The inner wall of the gas collection hood 18 is symmetrically fixedly installed with air guide plates 26. The smoke sensor 19 is located between the two air guide plates 26. The two sets of limiting seats 25 limit the two sealing plates 5 respectively, so that the sealing plates 5 can keep in contact with the inside of the cabinet 1. Thus, the long groove 6 and the heat dissipation hole 4 are staggered to ensure the airtightness of the cabinet 1. When the gas collection hood 18 swings, air will enter the inner side of the gas collection hood 18. When the air wants to pass through the vent 20, the air guide plate 26 can change the direction of air flow, so that the air gathers in the direction of the smoke sensor 19. In this way, even if the smoke is relatively dispersed in the cabinet 1, it can be guided to the vicinity of the smoke sensor 19 by the air guide plate 26, increasing the chance of contact between the smoke and the sensor, greatly improving the sensitivity and accuracy of smoke detection, and enabling more timely detection of fire hazards.
[0030] like Figures 8 to 9 As shown, positioning plates 27 are symmetrically fixedly installed on the outer wall of the sealing plate 5. A rotating shaft 28 is rotatably installed on the inner wall of the positioning plate 27. A fan 29 is fixedly installed at one end of the rotating shaft 28. A rotating component is provided on one side of the limiting seat 25. When the sealing plate 5 reciprocates, the rotating component will drive the rotating shaft 28 to reciprocate. When the rotating shaft 28 rotates, it will drive the fan 29 to rotate. The fan 29 is located at the long slot 6. When the fan 29 rotates, it can form an active airflow circulation in the area of the long slot 6. Compared with the traditional heat dissipation method that relies solely on natural convection, this active heat dissipation mechanism greatly accelerates the exchange speed of air inside and outside the cabinet 1, and can more quickly remove the heat generated by the communication equipment inside the cabinet, effectively reducing the temperature inside the cabinet and ensuring the normal operation of the equipment.
[0031] like Figures 8 to 9 As shown, the rotating assembly includes several racks 30, which are fixedly installed on the outer wall of the limiting seat 25. A gear B31 is fixedly installed on the outer wall of the rotating shaft 28, and the teeth of the gear B31 mesh with the teeth of the racks 30. When the sealing plate 5 reciprocates, it drives the gear B31 to move up and down through the positioning plate 27 and the rotating shaft 28. Since the gear B31 is meshed with the racks 30, it will rotate under the action of the racks 30 when the gear B31 moves up and down. When the gear B31 rotates, it will drive the rotating shaft 28 to rotate, thereby providing power for the rotation of the fan 29.
[0032] like Figure 1As shown, a door 32 is hinged to the outer wall of the cabinet 1. A transparent observation window 33 is fixedly installed on the inner wall of the door 32. Sealing strips 34 are fixedly installed on both the door 32 and the inner wall of the cabinet 1. When the door 32 is closed, the sealing strip 34 ensures the airtightness between the door 32 and the cabinet 1. The transparent observation window 33 fixedly installed on the inner wall of the door 32 allows the operator to directly observe the operating status of the communication equipment inside the cabinet 1 without opening the door 32.
[0033] Working principle: In the initial state, the long slot 6 is connected to the heat dissipation hole 4, forming a natural ventilation channel. Air can circulate through the heat dissipation hole 4 and the long slot 6 to dissipate heat from the inside of the cabinet 1. When the smoke sensor 19 detects a fire inside the cabinet 1, the drive assembly will activate, causing the two sealing plates 5 to move in opposite vertical directions. After the sealing plates 5 move, the long slot 6 will be offset from the heat dissipation hole 4, thus sealing the inside of the cabinet 1. The rapid sealing design can effectively block external oxygen from entering the cabinet 1, cutting off the oxygen supply for combustion, thereby suppressing the spread of fire and buying valuable time to control the fire and reduce losses. In the event of a fire, the cylinder 7 will enter... The extension of the cylinder pushes one of the sealing plates 5 downwards. The two sealing plates 5 are connected by a bottom connecting belt 8 and a top connecting belt 9. The connecting belt is guided by a guide wheel 10, which causes the other sealing plate 5 to move upwards. The two sealing plates 5 move in opposite directions, causing the long groove 6 and the heat dissipation hole 4 to be misaligned. Through the transmission of the connecting belt and the guide wheel 10, the synchronicity and coordination of the movement of the two sealing plates 5 are ensured, so that the long groove 6 and the heat dissipation hole 4 can be accurately and quickly misaligned, achieving reliable sealing of the cabinet 1. This solution can achieve synchronous movement of the two sealing plates 5 with only one cylinder 7, which has a significant cost advantage and can reduce the overall manufacturing cost of the cabinet.
[0034] Carbon dioxide containment tanks 11 are provided at the top and bottom of the cabinet 1. When the cylinder 7 extends, it moves the sealing plate 5. The bottom connecting belt 8 and the top connecting belt 9 also move due to the linkage. After the long groove 6 and the heat dissipation hole 4 are misaligned, the cylinder 7 will continue to extend, causing the bottom connecting belt 8 and the top connecting belt 9 to continue to move. The continued movement of the bottom connecting belt 8 and the top connecting belt 9 will cause the extrusion assembly to push the sealing cover 13 to rotate around the torsion spring shaft 12. After the sealing cover 13 rotates, the spray hole on the carbon dioxide containment tank 11 will open, thereby spraying carbon dioxide from the top and bottom of the cabinet 1 into the interior of the cabinet 1. After the long groove 6 and the heat dissipation hole 4 are misaligned, as the bottom connecting belt 8 and the top connecting belt 9 continue to move, it will drive the extrusion block 15 to continue to move. When the extrusion block 15 moves, it will squeeze the force rod 16. After the force rod 16 is squeezed, it will drive the sealing cover 13 to rotate around the torsion spring shaft 12, thereby opening the spray hole to realize the spraying of carbon dioxide.
[0035] During normal operation, cylinder 7 reciprocates, causing the sealing plate 5, bottom connecting belt 8, and top connecting belt 9 to move back and forth. Because the long groove 6 has a certain length, it remains connected to the heat dissipation hole 4 during the reciprocating movement of the sealing plate 5, thus not affecting the heat dissipation of the hole 4. The top connecting belt 9, during its reciprocating movement, drives the swing plate 17 to swing back and forth via the swing assembly. The swing plate 17's swinging motion causes the air collection hood 18 to swing back and forth inside the cabinet 1, covering a larger area as it swings. The top connecting belt 9, during its reciprocating movement, drives the drive gear 24 to move. Since the drive gear 24 is meshed with gear A23, the drive gear... When 24 moves back and forth, it drives gear A23 to rotate back and forth. When gear A23 rotates, it drives swing shaft 22 to rotate. When swing shaft 22 rotates, it drives swing plate 17 to rotate, thereby causing swing plate 17 to drive the gas collection hood 18 to swing back and forth. When the gas collection hood 18 swings, air will enter the inside of the gas collection hood 18. When the air wants to pass through the vent 20, the air guide plate 26 can change the direction of air flow, causing the air to gather in the direction of the smoke sensor 19. In this way, even if the smoke is relatively dispersed in the cabinet 1, it can be guided by the air guide plate 26 to the vicinity of the smoke sensor 19, increasing the chance of contact between the smoke and the sensor, greatly improving the sensitivity and accuracy of smoke detection, and enabling more timely detection of fire hazards.
[0036] When the sealing plate 5 reciprocates, the rotating assembly drives the rotating shaft 28 to reciprocate. When the rotating shaft 28 rotates, it drives the fan 29 to rotate. The fan 29 is located in the long slot 6. When the fan 29 rotates, it can form an active airflow circulation in the long slot 6 area. Compared with the traditional heat dissipation method that relies solely on natural convection, this active heat dissipation mechanism greatly accelerates the exchange speed of air inside and outside the cabinet 1, and can more quickly remove the heat generated by the communication equipment inside the cabinet, effectively reducing the temperature inside the cabinet and ensuring the normal operation of the equipment. When the sealing plate 5 reciprocates, it drives the gear B31 to move up and down through the positioning plate 27 and the rotating shaft 28. Since the gear B31 is in a meshing state with the rack 30, it will rotate under the action of the rack 30 when the gear B31 moves up and down. When the gear B31 rotates, it will drive the rotating shaft 28 to rotate, thereby providing power for the rotation of the fan 29.
[0037] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.
Claims
1. A self-sealing flame retardant communication cabinet comprising a cabinet body (1), characterized in that: The top of the cabinet (1) is fixedly installed with a shielding top plate (2), the bottom of the cabinet (1) is fixedly installed with a base (3) symmetrically, both sides of the cabinet (1) are provided with heat dissipation holes (4), the inner wall of the cabinet (1) is provided with two sealing plates (5), both the sealing plates (5) are in close contact with the inner wall of the cabinet (1), the outer wall of the sealing plate (5) is provided with a long slot (6), the long slot (6) is communicated with the heat dissipation hole (4) respectively, the top of the cabinet (1) is provided with a driving assembly, the inside of the cabinet (1) is provided with a smoke sensor (19).
2. A self-sealing fire resistant telecommunications cabinet according to claim 1, wherein: The driving assembly comprises a cylinder (7), the cylinder (7) is fixedly installed on the top of the cabinet (1), the output shaft of the cylinder (7) penetrates the cabinet (1) and is fixedly connected with one of the sealing plates (5), the bottom of the sealing plate (5) is fixedly installed with a bottom connecting belt (8) between, the top of the sealing plate (5) is fixedly installed with a top connecting belt (9) between, the inner wall of the cabinet (1) is fixedly installed with two groups of guide wheels (10), the bottom connecting belt (8) and the top connecting belt (9) are respectively in transmission connection with the two groups of guide wheels (10).
3. A self-sealing, flame-resistant telecommunications cabinet as defined in claim 2, wherein: The top and the bottom of the cabinet (1) are fixedly installed with carbon dioxide containing boxes (11), the side of the carbon dioxide containing box (11) is provided with a plurality of spray holes, the side of the carbon dioxide containing box (11) is fixedly installed with a torsional spring shaft (12), the outer wall of the torsional spring shaft (12) is installed with a sealing cover (13), the sealing cover (13) is in close contact with the carbon dioxide containing box (11), the side of the carbon dioxide containing box (11) is fixedly installed with a stop block (14), the stop block (14) respectively abuts against the sealing cover (13), one side of the sealing cover (13) is provided with a extrusion assembly.
4. A self-closing fire resistant telecommunications cabinet according to claim 3, wherein: The extrusion assembly comprises a plurality of extrusion blocks (15), the extrusion blocks (15) are respectively fixedly installed on both sides of the bottom connecting belt (8) and the top connecting belt (9), the inner wall of the sealing cover (13) is fixedly installed with a stress rod (16).
5. A self-closing fire resistant telecommunications cabinet according to claim 4, wherein: The inside of the cabinet (1) is provided with a swing plate (17), one end of the swing plate (17) is fixedly installed with a gas collecting cover (18), the smoke sensor (19) is fixedly installed on the inner wall of the gas collecting cover (18), a plurality of air holes (20) are formed in the top of the gas collecting cover (18), the bottom of the carbon dioxide containing box (11) is provided with a swing assembly.
6. A self-closing fire resistant telecommunications cabinet according to claim 5, wherein: The swing assembly comprises a vertical plate (21), the bottom of the carbon dioxide containing box (11) is fixedly connected with the top of the vertical plate (21), the inner wall of the vertical plate (21) is rotatably installed with a swing shaft (22), the outer wall of the swing shaft (22) is fixedly connected with the inner wall of the swing plate (17), the outer wall of the swing shaft (22) is fixedly installed with a gear A (23), the bottom of the top connecting belt (9) is fixedly installed with a driving tooth (24), the teeth of the driving tooth (24) and the teeth of the gear A (23) are engaged.
7. A self-closing fire resistant telecommunications cabinet according to claim 6, wherein: The inner wall of the cabinet body (1) is fixedly provided with two groups of limiting seats (25), the two groups of limiting seats (25) are slidably connected with two sealing plates (5) respectively, the inner wall of the gas collecting cover (18) is fixedly provided with air guide inclined plates (26) symmetrically, and the smoke sensor (19) is located between the two air guide inclined plates (26).
8. A self-closing fire resistant telecommunications cabinet according to claim 7, wherein: The outer wall of the sealing plate (5) is fixedly provided with a positioning plate (27) symmetrically, the inner wall of the positioning plate (27) is rotatably provided with a rotating shaft (28), one end of the rotating shaft (28) is fixedly provided with a fan (29), and one side of the limiting seat (25) is provided with a rotating assembly.
9. A self-closing fire resistant telecommunications cabinet according to claim 8, wherein: The rotating assembly comprises a plurality of racks (30), the racks (30) are fixedly installed on the outer wall of the limiting seat (25), the outer wall of the rotating shaft (28) is fixedly provided with a gear B (31), and the teeth of the gear B (31) are meshed with the teeth of the racks (30) respectively.
10. A self-closing fire resistant telecommunications cabinet according to claim 9, wherein: The outer wall of the cabinet body (1) is hingedly provided with a door body (32), the inner wall of the door body (32) is fixedly provided with a transparent observation window (33), and the inner walls of the door body (32) and the cabinet body (1) are fixedly provided with sealing strips (34).