Self-closed flame-retardant communication cabinet

Abstract

The invention relates to the technical field of communication equipment, in particular to a self-closed flame-retardant communication cabinet which comprises a cabinet body, a storage battery is arranged at the bottom end of the cabinet body, a sealing strip is fixedly installed at the front end of the cabinet body, two supporting frames are symmetrically arranged in the cabinet body, a plurality of supporting plates are evenly arranged on the supporting frames, and the supporting plates are fixedly installed on the cabinet body. And a cabinet door is rotationally mounted at the front end of the cabinet body. While the cabinet body is sealed through the sealing plate to isolate air from entering, carbon dioxide gas can be quickly filled into the cabinet body in cooperation with the quick gas guide assembly, fire in the cabinet body is quickly extinguished, fire in the cabinet body is prevented from becoming large, large-range burning loss of communication elements is avoided, loss can be reduced, and the service life of the communication elements is prolonged. Internal heat dissipation of the cabinet body during normal use is guaranteed through the heat dissipation assembly, and when the interior of the cabinet body expands due to sealed temperature rise and continuous inflation, the heat dissipation assembly cooperates with the rapid air guide assembly to enable high-pressure air in the cabinet body to be discharged in one direction, so that the pressure in the cabinet body is reduced, and deformation of the cabinet body is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of communication equipment, in particular to a self-enclosed flame-retardant communication cabinet. Background Art

[0002] A communications cabinet is a freestanding or self-supporting enclosure used to house electrical or electronic equipment, providing an outdoor physical working environment and safety system for a wireless communications site or wired network site workstation;

[0003] In order to avoid the internal temperature of the existing communication cabinets during use, heat dissipation holes are opened on the side of the cabinet. Although this method can improve the heat dissipation effect of the cabinet, when the interior of the cabinet is on fire due to power line leakage, short circuit, overload, excessive contact resistance, insulation damage, etc., the outside air can easily enter the cabinet through the heat dissipation holes to play a role in combustion, which can easily cause the fire to spread;

[0004] In view of the above problems, a self-sealed flame-retardant communication cabinet with publication number CN117729724A proposes a solution. Through the sealing mechanism installed on the left and right sides of the inner shell of the cabinet, the cabinet body is automatically sealed in case of fire to prevent the outside air from continuously entering the cabinet body when the inner shell of the cabinet is on fire. The containing cover can be turned over by rotating the push rod, and the calcium carbonate contained in the inner shell can be poured into the dilute hydrochloric acid, so that the two react and generate carbon dioxide. The generated carbon dioxide flows out through the drainage pipe at the upper end, so as to further improve the fire extinguishing and flame retardant effect of the inner shell of the cabinet. However, In the above scheme, the reaction of calcium carbonate with dilute hydrochloric acid is an exothermic reaction, and its products are carbon dioxide gas and water. As a result, the generated carbon dioxide gas is mixed with water vapor. During the fire extinguishing process, water vapor is easy to adhere to the joints of the electrical components on the communication cabinet, which will affect the subsequent use of the electrical components inside the communication cabinet. In addition, hydrochloric acid is volatile, and a long time may cause all the hydrochloric acid to evaporate, which will affect the preparation of carbon dioxide and further affect the fire extinguishing effect. At the same time, the gas continuously generated in the closed and high-temperature communication cabinet will expand when heated, causing the communication cabinet to deform, further affecting the subsequent use of the communication cabinet.

[0005] Therefore, a self-enclosed flame-retardant communication cabinet is proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a self-sealed flame-retardant communication cabinet, which can seal the cabinet to isolate the air from entering through a sealing plate, and at the same time, cooperate with a rapid gas guide component to quickly fill carbon dioxide gas into the cabinet, so as to quickly extinguish the fire in the cabinet, avoid the fire in the cabinet from getting bigger, avoid large-scale burning of communication components, and reduce losses. When the cabinet expands due to sealing and continuous inflation, the heat dissipation component cooperates with the rapid gas guide component to discharge the high-pressure gas in the cabinet in one direction, reduce the pressure in the cabinet, and avoid deformation of the cabinet.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A self-sealed flame-retardant communication cabinet comprises a cabinet body, a storage battery is arranged at the bottom end of the cabinet body, a sealing strip is fixedly installed at the front end of the cabinet body, two support frames are symmetrically arranged in the cabinet body, a plurality of support plates are evenly arranged on the support frames, a cabinet door is rotatably installed at the front end of the cabinet body, a transparent window, a heat dissipation hole and an air inlet hole are arranged on the outer side of the cabinet door, a control box is arranged on the inner side of the cabinet door, a smoke alarm is arranged on the control box, a sealed fire extinguishing assembly is arranged at the bottom end of the control box, a heat dissipation assembly is arranged at the top end of the control box, a rapid air guide assembly is arranged in the support frame, the sealed fire extinguishing assembly seals the cabinet body to isolate air from entering, and cooperates with the rapid air guide assembly to quickly extinguish the fire in the cabinet body, and the heat dissipation assembly ensures the heat dissipation of the cabinet body, and cooperates with the rapid air guide assembly to discharge the high-pressure gas in the cabinet body in one direction after the cabinet body is sealed.

[0009] Through the above scheme, when a fire occurs, the sealed fire extinguishing component can seal the cabinet to isolate the air from entering, and at the same time, cooperate with the rapid gas guide component to quickly fill the cabinet with carbon dioxide gas, so as to quickly extinguish the fire in the cabinet, prevent the fire in the cabinet from getting bigger, and reduce losses. The heat dissipation component can ensure the internal heat dissipation of the cabinet during normal use. When the cabinet expands due to the sealing temperature rise and continuous inflation, the heat dissipation component cooperates with the rapid gas guide component to discharge the high-pressure gas in the cabinet in one direction, reduce the pressure in the cabinet, and avoid deformation of the cabinet.

[0010] Preferably, the sealed fire extinguishing assembly includes two gas cylinders, a limit plate, an electric telescopic rod, a slide groove, a sealing plate, two docking joints and two exhaust holes, the two gas cylinders are symmetrically clamped on both sides of the limit plate, and the gas cylinders are inserted in the control box, the exhaust holes correspond to the positions when the air outlet pipes of the gas cylinders are fully embedded in the control box, the extended end of the electric telescopic rod is fixedly connected to the center of the bottom end of the limit plate, the top and bottom ends of the slide groove are respectively provided with first air holes connected with the heat dissipation holes and the air inlet holes, the sealing plate is slidably installed in the slide groove, and the bottom end of the sealing plate is fixedly connected to the side wall of the limit plate, the top and bottom ends of the sealing plate are respectively provided with second air holes equal to the size of the first air holes, the spacing length between two upper and lower adjacent second air holes is greater than the height of the second air holes, and the docking joint is connected with the exhaust holes.

[0011] Through the above scheme, after the fire is discovered, the electric telescopic rod is retracted, and the sealing plate moves upward to seal the cabinet, which can isolate the outside air from entering the cabinet to support combustion. When the electric telescopic rod is retracted, the gas cylinder can slide upward with the limit plate. At this time, the pressure valve of the gas cylinder is squeezed and opened, and the high-pressure carbon dioxide gas in the gas cylinder can be discharged along the exhaust hole and the docking joint, which can make the carbon dioxide gas diffuse in the cabinet, isolate the air containing oxygen in the cabinet, realize rapid fire extinguishing of the cabinet, avoid large-scale burning of communication components, and reduce losses.

[0012] Preferably, both gas storage cylinders are filled with high-pressure dry carbon dioxide gas.

[0013] Through the above solution, the dry carbon dioxide gas can avoid damage to the communication components, which is beneficial to the subsequent use of the communication components.

[0014] Preferably, the initial state of the electric telescopic rod is an extended state, the extended length of the electric telescopic rod is greater than the height of the second air hole, and the extended length of the electric telescopic rod is less than the distance between two upper and lower adjacent second air holes.

[0015] Through the above scheme, when a fire is discovered, the electric telescopic rod is immediately energized and retracted. After the electric telescopic rod is fully retracted, the second air hole on the sealing plate can slide upward, the solid part of the sealing plate moves to the first air hole, and the second air hole moves to the solid part of the slide groove, thereby perfectly achieving the sealing of the cabinet.

[0016] Preferably, the heat dissipation assembly includes two pressure relief pipes, two cavities and two fans, the cavities are respectively located on both sides of the top of the control box, the cavity is connected with the heat dissipation holes on the cabinet door and the first air vents on the slide slot, the fan is fixedly installed in the cavity, one end of the pressure relief pipe is connected with the edge of the cavity, the other end of the pressure relief pipe is connected with the exhaust hole, and a one-way pressure valve is provided at the connection between the pressure relief pipe and the cavity.

[0017] Through the above scheme, during normal operation, the powered fan can directly guide the hot air in the cabinet out of the heat dissipation holes, which can ensure that the internal communication components are in a suitable working environment. When the cabinet catches fire and the power is cut off, causing the fan to stop working, the internal pressure is not enough to open the one-way pressure valve, so the one-way pressure valve is closed and the pressure relief pipe is in a closed state, which can prevent the outside oxygen-containing air from entering the cabinet, ensure the sealing of the cabinet, and ensure the fire extinguishing effect.

[0018] Preferably, the pressure relief pipe is arranged vertically upward, and the setting value of the one-way pressure valve is greater than the pressure value of the carbon dioxide gas flowing to the top of the pressure relief pipe after diversion.

[0019] Through the above scheme, the one-way pressure valve can ensure that during the fire extinguishing process, the diverted carbon dioxide gas is blocked at the top of the pressure relief pipe, preventing the carbon dioxide gas from overflowing from the heat dissipation holes along the pressure relief pipe during the fire extinguishing process, thereby reducing the waste of carbon dioxide gas.

[0020] Preferably, the setting value of the one-way pressure valve is smaller than the pressure value of the airflow flowing in the cavity during the rotation of the fan.

[0021] Through the above scheme, the one-way pressure valve can be opened only when the fan is working and the pressure inside the cabinet is too high, so that the heat emitted by the communication components can be quickly discharged from the air guide holes, which can improve the heat dissipation effect, and at the same time ensure the pressure relief effect and prevent the cabinet from deformation.

[0022] Preferably, the rapid air guide assembly includes air guide holes and docking grooves, the air guide holes are evenly arranged on the side walls of the support plate, and the air guide holes on multiple support plates are connected, the docking groove is connected to the air guide holes, and the docking groove is arranged at the front end of the support frame, and the position of the docking groove corresponds to the position of the docking head.

[0023] Through the above scheme, during normal use, the heat emitted by the communication components placed on the top of the support plate during operation can be quickly drawn away along the air guide holes when the fan is turned on, which can improve the heat dissipation effect. During fire extinguishing, the carbon dioxide in the gas cylinder can be quickly filled into the cabinet along the air guide holes, thereby improving the fire extinguishing efficiency. When the cabinet is sealed, the pressure in the cabinet increases due to combustion and continuous injection of carbon dioxide gas. At this time, the high-pressure gas can flow in the opposite direction along the air guide holes to the pressure relief pipe and be discharged from the heat dissipation holes, which can avoid deformation of the cabinet due to excessive pressure in the cabinet, is conducive to the safe use of the cabinet, and can ensure the safety of the communication components in the cabinet.

[0024] Preferably, the docking joint is configured to be spherical, the end of the docking groove is configured to be an arc shape that matches the docking joint, and the docking joint fits with the docking groove when the cabinet door is closed.

[0025] Through the above solution, the spherical docking joint can facilitate the rapid connection and separation of the docking joint and the docking groove.

[0026] Preferably, the end of the docking joint is made of silicone material.

[0027] Through the above solution, the docking joint made of silicone material can produce a certain deformation when the docking joint just contacts the support frame when the cabinet door is closed, which is convenient for the docking joint to be quickly inserted into the docking groove, which is beneficial to the operation of the rapid air guide component.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1. By setting a sealed fire extinguishing component, after the electric telescopic rod is fully retracted, the second air hole on the sealing plate can slide upward, the solid part of the sealing plate can be moved to the first air hole, and the second air hole can be moved to the solid part of the slide groove, so as to perfectly realize the sealing of the cabinet and isolate the outside air from entering the cabinet for combustion. At the same time, the gas cylinder can slide upward with the limit plate. At this time, the pressure valve of the gas cylinder is squeezed and opened, and the high-pressure carbon dioxide gas in the gas cylinder can be discharged along the exhaust hole and the docking joint, so that the carbon dioxide gas can diffuse in the cabinet and isolate the air containing oxygen in the cabinet, so as to realize rapid fire extinguishing of the cabinet, avoid large-scale burning of communication components, reduce losses, and the dry carbon dioxide gas can avoid damage to the communication components, which is beneficial to the subsequent use of the communication components.

[0030] 2. By setting up a heat dissipation component, the fan after power-on can directly guide the hot air in the cabinet out of the heat dissipation holes, which can ensure that the internal communication components are in a suitable working environment. The heat emitted by the communication components placed on the top of the support plate during operation can be quickly drawn away along the air guide holes when the fan is turned on, which can further improve the heat dissipation effect.

[0031] 3. By setting up a fast gas guide component, when extinguishing a fire, the carbon dioxide in the gas cylinder is quickly and evenly filled into the cabinet along the gas guide hole, thereby improving the fire extinguishing efficiency. After the pressure in the cabinet increases due to combustion and continuous injection of carbon dioxide gas, the high-pressure gas can flow back along the gas guide hole to the pressure relief pipe. The high-pressure gas can squeeze the one-way pressure valve on the pressure relief pipe, so that the high-pressure gas is discharged from the heat dissipation hole, which can avoid deformation of the cabinet due to excessive pressure in the cabinet, is conducive to the safe use of the cabinet, and can ensure the safety of communication components in the cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the overall structure of the cabinet body of the present invention being closed;

[0033] Figure 2 It is a schematic diagram of the overall structure of the cabinet of the present invention;

[0034] Figure 3 It is a schematic diagram of the cross-sectional structure of the control box of the present invention;

[0035] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a cabinet of the present invention;

[0036] Figure 5 It is a structural schematic diagram of the inner side of the cabinet door of the present invention;

[0037] Figure 6 for Figure 1 Schematic diagram of the cross-sectional structure of AA;

[0038] Figure 7 It is a partial exploded view of the control box of the present invention;

[0039] Figure 8 It is a schematic diagram of the side cross-sectional structure of the cabinet door of the present invention;

[0040] Fig. 9 It is a schematic diagram of a partial cross-sectional structure of the top of the cabinet door of the present invention;

[0041] Fig.10 for Fig. 9 Enlarged view of B.

[0042] In the figure: 1. cabinet; 101. battery; 102. sealing strip; 103. support frame; 1031. support plate; 2. cabinet door; 201. transparent window; 202. heat dissipation hole; 203. air inlet; 3. control box; 301. smoke alarm; 4. sealed fire extinguishing assembly; 401. gas cylinder; 402. limit plate; 403. electric telescopic rod; 404. slide; 4041. first air vent; 405. sealing plate; 4051. second air vent; 406. docking joint; 407. exhaust hole; 5. heat dissipation assembly; 501. pressure relief pipe; 5011. one-way pressure valve; 502. cavity; 503. fan; 6. quick air guide assembly; 601. air guide hole; 602. docking groove. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figures 1 to 10 The present invention provides a self-enclosed flame-retardant communication cabinet, and the technical solution is as follows:

[0045] A self-sealed flame-retardant communication cabinet comprises a cabinet 1, a battery 101 is arranged at the bottom end of the cabinet 1, a sealing strip 102 is fixedly installed at the front end of the cabinet 1, two support frames 103 are symmetrically arranged in the cabinet 1, a plurality of support plates 1031 are evenly arranged on the support frames 103, a cabinet door 2 is rotatably installed at the front end of the cabinet 1, a transparent window 201, a heat dissipation hole 202 and an air inlet 203 are arranged on the outer side of the cabinet door 2, a control box 3 is arranged on the inner side of the cabinet door 2, a smoke alarm 301 is arranged on the control box 3, a sealed fire extinguishing component 4 is arranged at the bottom end of the control box 3, a heat dissipation component 5 is arranged at the top end of the control box 3, a rapid air guide component 6 is arranged in the support frame 103, the sealed fire extinguishing component 4 seals and isolates the cabinet 1 from air ingress, and cooperates with the rapid air guide component 6 to quickly extinguish the fire in the cabinet 1, and the heat dissipation component 5 ensures the heat dissipation of the cabinet 1, and cooperates with the rapid air guide component 6 to discharge the high-pressure gas in the cabinet 1 in one direction after the cabinet 1 is sealed.

[0046] In the present embodiment, when a fire occurs, the sealed fire extinguishing component 4 can seal the cabinet 1 to isolate the air from entering, and at the same time, cooperate with the rapid gas guide component 6 to quickly fill the cabinet 1 with carbon dioxide gas, so as to quickly extinguish the fire in the cabinet 1, prevent the fire in the cabinet 1 from getting bigger, and reduce losses. The heat dissipation component 5 can ensure the internal heat dissipation of the cabinet 1 during normal use. When the cabinet 1 expands due to the sealing temperature rise and continuous inflation, the heat dissipation component 5 cooperates with the rapid gas guide component 6 to discharge the high-pressure gas in the cabinet 1 in one direction, thereby reducing the pressure in the cabinet 1 and preventing the cabinet 1 from deforming.

[0047] As an embodiment of the present invention, refer to Figure 3 , Figure 6 The sealed fire extinguishing assembly 4 includes two gas cylinders 401, a limit plate 402, an electric telescopic rod 403, a slide groove 404, a sealing plate 405, two docking joints 406 and two exhaust holes 407. The two gas cylinders 401 are symmetrically arranged on both sides of the limit plate 402, and the gas cylinders 401 are inserted into the control box 3. The exhaust holes 407 correspond to the positions when the gas outlet pipes of the gas cylinders 401 are completely embedded in the control box 3. The extended end of the electric telescopic rod 403 is fixedly connected to the center of the bottom end of the limit plate 402, and the top of the slide groove 404 is fixedly connected to the bottom end of the limit plate 402. The upper and lower ends of the sealing plate 405 are respectively provided with first air holes 4041 connected with the heat dissipation holes 202 and the air inlet holes 203, the sealing plate 405 is slidably installed in the slide groove 404, and the bottom end of the sealing plate 405 is fixedly connected to the side wall of the limiting plate 402, and the top and bottom ends of the sealing plate 405 are respectively provided with second air holes 4051 equal in size to the first air holes 4041, the spacing length between the upper and lower adjacent second air holes 4051 is greater than the height of the second air holes 4051, and the docking joint 406 is connected with the exhaust hole 407.

[0048] In this embodiment, after a fire is discovered, the smoke alarm 301 sends a signal, and the electric telescopic rod 403 is powered on and retracted. At this time, the sealing plate 405 moves upward to seal the cabinet 1, which can isolate the outside air from entering the cabinet 1 to assist combustion. When the electric telescopic rod 403 retracts, the gas cylinder 401 can slide upward along with the limit plate 402. At this time, the pressure valve of the gas cylinder 401 is squeezed and opened, and the high-pressure carbon dioxide gas in the gas cylinder 401 can be discharged along the exhaust hole 407 and the docking joint 406, so that the carbon dioxide gas can diffuse in the cabinet 1, and the air containing oxygen in the cabinet 1 can be isolated, so as to achieve rapid fire extinguishing of the cabinet 1, avoid large-scale burning of communication components, and reduce losses.

[0049] As an embodiment of the present invention, refer to Figure 3 , both gas cylinders 401 are filled with high-pressure dry carbon dioxide gas.

[0050] In this embodiment, the dry carbon dioxide gas can avoid damage to the communication element, which is beneficial to the subsequent use of the communication element.

[0051] As an embodiment of the present invention, refer to Figure 5 The initial state of the electric telescopic rod 403 is the extended state, the extended length of the electric telescopic rod 403 is greater than the height of the second air hole 4051, and the extended length of the electric telescopic rod 403 is less than the distance between two adjacent second air holes 4051 above and below.

[0052] In the present embodiment, when a fire is detected, the electric telescopic rod 403 is immediately energized and retracted. After the electric telescopic rod 403 is fully retracted, the second air hole 4051 on the sealing plate 405 can slide upward, so that the solid part of the sealing plate 405 moves to the first air hole 4041, and the second air hole 4051 moves to the solid part of the slide groove 404, thereby perfectly achieving the sealing of the cabinet 1.

[0053] As an embodiment of the present invention, refer to Figure 8-Figure 10 The heat dissipation component 5 includes two pressure relief pipes 501, two cavities 502 and two fans 503. The cavities 502 are respectively located on both sides of the top of the control box 3. The cavities 502 are connected with the heat dissipation holes 202 on the cabinet door 2 and the first air holes 4041 on the slide groove 404. The fans 503 are fixedly installed in the cavities 502. One end of the pressure relief pipe 501 is connected with the edge of the cavity 502, and the other end of the pressure relief pipe 501 is connected with the exhaust hole 407. A one-way pressure valve 5011 is provided at the connection between the pressure relief pipe 501 and the cavity 502.

[0054] In this embodiment, during normal operation, the energized fan 503 can directly discharge the hot air in the cabinet 1 from the heat dissipation holes 202, thereby ensuring that the internal communication components are in a suitable working environment. When the cabinet 1 catches fire and the power is cut off, causing the fan 503 to stop working, the internal pressure is insufficient to open the one-way pressure valve 5011, and the one-way pressure valve 5011 is closed, and the pressure relief pipe 501 is in a closed state, which can prevent external oxygen-containing air from entering the cabinet 1, thereby ensuring the sealing of the cabinet 1 and the flame retardant effect.

[0055] As an embodiment of the present invention, refer to Fig. 9 The pressure relief pipe 501 is arranged vertically upward, and the setting value of the one-way pressure valve 5011 is greater than the pressure value of the carbon dioxide gas flowing to the top of the pressure relief pipe 501 after diversion.

[0056] In this embodiment, the one-way pressure valve 5011 can ensure that during the fire extinguishing process, the diverted carbon dioxide gas is blocked at the top of the pressure relief pipe 501, preventing the carbon dioxide gas from overflowing from the heat dissipation hole 202 along the pressure relief pipe 501 during the fire extinguishing process, thereby reducing the waste of carbon dioxide gas.

[0057] As an embodiment of the present invention, refer to Fig.10 , the setting value of the one-way pressure valve 5011 is less than the pressure value of the airflow flowing in the cavity 502 during the rotation of the fan 503.

[0058] In this embodiment, the one-way pressure valve 5011 can be opened only when the fan 503 is working and the internal pressure of the cabinet 1 is too high, so that the heat emitted by the communication components can be quickly discharged from the air guide hole 601, which can improve the heat dissipation effect, and at the same time ensure the pressure relief effect to prevent the cabinet 1 from deforming.

[0059] As an embodiment of the present invention, refer to Figure 4-Figure 6 The quick air guide component 6 includes an air guide hole 601 and a docking groove 602. The air guide holes 601 are evenly arranged on the side wall of the support plate 1031, and the air guide holes 601 on multiple support plates 1031 are connected. The docking groove 602 is connected to the air guide holes 601, and the docking groove 602 is arranged at the front end of the support frame 103. The position of the docking groove 602 corresponds to the position of the docking head 406.

[0060] In the present embodiment, when the cabinet door 2 is closed, the docking joint 406 fits with the docking groove 602. During normal use, the heat emitted by the communication component placed on the top of the support plate 1031 during operation can be quickly drawn away along the air guide hole 601 when the fan 503 is turned on, thereby improving the heat dissipation effect. During fire extinguishing, the carbon dioxide in the gas cylinder 401 can be quickly filled into the cabinet 1 along the air guide hole 601, thereby improving the fire extinguishing efficiency. When the cabinet 1 is sealed, the pressure in the cabinet 1 increases due to combustion and continuous injection of carbon dioxide gas. At this time, the high-pressure gas can flow in the opposite direction along the air guide hole 601 to the pressure relief pipe 501 and be discharged from the heat dissipation hole 202, thereby avoiding deformation of the cabinet 1 caused by excessive pressure in the cabinet 1, thereby facilitating the safe use of the cabinet 1 and ensuring the safety of the communication components in the cabinet 1.

[0061] As an embodiment of the present invention, refer to Figure 6 The docking joint 406 is configured to be spherical, the end of the docking groove 602 is configured to be an arc shape that matches the docking joint 406, and the docking joint 406 fits in the docking groove 602 when the cabinet door 2 is closed.

[0062] In this embodiment, the spherical docking joint 406 can facilitate the rapid connection and separation between the docking joint 406 and the docking groove 602 , which can reduce the difficulty of fitting the docking joint 406 .

[0063] As an embodiment of the present invention, refer to Figure 6 , the end of the joint 406 is made of silicone material.

[0064] In this embodiment, the docking joint 406 made of silicone material can produce a certain deformation when the cabinet door 2 is closed and the docking joint 406 just contacts the support frame 103. After the cabinet door 2 is completely closed, when the docking joint 406 is completely embedded in the docking groove 602, the deformed docking joint 406 can be reset, which can ensure the fit between the docking joint 406 and the docking groove 602, which is beneficial to the operation of the rapid air guide component 6.

[0065] Working principle: During normal use, the cabinet door 2 is closed, and the cabinet door 2 is tightly fitted with the cabinet body 1 through the sealing strip 102 to ensure the sealing of the cabinet body 1 and the cabinet door 2. The docking joint 406 is fitted with the docking groove 602, and the heat dissipation hole 202 and the air inlet 203 are in an open state. The fan 503 after power-on can directly guide the hot air in the cabinet body 1 out from the heat dissipation hole 202, which can ensure that the internal communication components are in a suitable working environment. The heat emitted by the communication components placed on the top of the support plate 1031 during operation can be quickly drawn away along the air guide hole 601 when the fan 503 is turned on, which can further improve the heat dissipation effect.

[0066] When a fire is discovered, the smoke alarm 301 sends a signal, and the electric telescopic rod 403 is powered on and retracted. After the electric telescopic rod 403 is fully retracted, the second air hole 4051 on the sealing plate 405 can slide upward, so that the solid part of the sealing plate 405 moves to the first air hole 4041, and the second air hole 4051 moves to the solid part of the slide groove 404, so that the cabinet 1 is perfectly sealed and the outside air can be isolated from entering the cabinet 1 to support combustion.

[0067] When the electric telescopic rod 403 is retracted, the gas cylinder 401 can slide upward with the limit plate 402. At this time, the pressure valve of the gas cylinder 401 is squeezed and opened, and the high-pressure carbon dioxide gas in the gas cylinder 401 can be discharged along the exhaust hole 407 and the docking joint 406, so that the carbon dioxide gas can be diffused in the cabinet 1, and the air containing oxygen in the cabinet 1 can be isolated, so that the cabinet 1 can be quickly extinguished, and the communication components can be prevented from being burned in a large range, thereby reducing losses;

[0068] During the fire extinguishing process, the carbon dioxide in the gas cylinder 401 is quickly filled into the cabinet 1 along the air guide hole 601, thereby improving the fire extinguishing efficiency. The one-way pressure valve 5011 can ensure that the diverted carbon dioxide gas is blocked at the top of the pressure relief pipe 501 during the fire extinguishing process, thereby preventing the carbon dioxide gas from overflowing from the heat dissipation hole 202 along the pressure relief pipe 501 during the fire extinguishing process, thereby reducing the waste of carbon dioxide gas. When the cabinet 1 is on fire and the power is cut off, causing the fan 503 to stop working, the internal pressure is insufficient to open the one-way pressure valve 5011, and the one-way pressure valve 5011 is closed, and the pressure relief pipe 501 is in a closed state, thereby preventing the external oxygen-containing air from entering the cabinet 1, thereby ensuring the sealing of the cabinet 1, and ensuring the flame retardant effect.

[0069] When the cabinet 1 is sealed, the pressure in the cabinet 1 increases due to combustion and continuous injection of carbon dioxide gas. At this time, the high-pressure gas can flow back along the gas guide hole 601 to the pressure relief pipe 501 and be discharged from the heat dissipation hole 202, which can prevent the cabinet 1 from being deformed due to excessive pressure in the cabinet 1, is beneficial to the safe use of the cabinet 1, and can ensure the safety of the communication components in the cabinet 1.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-enclosed flame-retardant communication cabinet, comprising a cabinet (1), a battery (101) being arranged at the bottom end of the cabinet (1), a sealing strip (102) being fixedly mounted at the front end of the cabinet (1), two support frames (103) being symmetrically arranged in the cabinet (1), a plurality of support plates (1031) being evenly arranged on the support frames (103), a cabinet door (2) being rotatably mounted at the front end of the cabinet (1), characterized in that: The outer side of the cabinet door (2) is provided with a transparent window (201), a heat dissipation hole (202) and an air inlet hole (203); the inner side of the cabinet door (2) is provided with a control box (3); the control box (3) is provided with a smoke alarm (301); the bottom end of the control box (3) is provided with a sealed fire extinguishing component (4); the top end of the control box (3) is provided with a heat dissipation component (5); a rapid air guide component (6) is provided in the support frame (103); the sealed fire extinguishing component (4) seals and isolates the cabinet (1) from air ingress while cooperating with the rapid air guide component (6) to rapidly extinguish fire in the cabinet (1); the heat dissipation component (5) ensures heat dissipation of the cabinet (1) and, after the cabinet (1) is sealed, cooperates with the rapid air guide component (6) to discharge high-pressure gas in the cabinet (1) in a one-way manner.

2. A self-enclosed flame-retardant communication cabinet according to claim 1, characterized in that: The sealed fire extinguishing assembly (4) comprises two gas cylinders (401), a limit plate (402), an electric telescopic rod (403), a slide groove (404), a sealing plate (405), two docking joints (406) and two exhaust holes (407). The two gas cylinders (401) are symmetrically arranged on both sides of the limit plate (402), and the gas cylinders (401) are inserted into the control box (3). The exhaust holes (407) correspond to the positions of the gas outlet pipes of the gas cylinders (401) when they are completely embedded in the control box (3). The extended end of the electric telescopic rod (403) is fixedly connected to the center of the bottom end of the limit plate (402). The slide groove (405) is connected to the sealing plate (405). 04) are respectively provided with a first air hole (4041) connected to the heat dissipation hole (202) and the air inlet hole (203), the sealing plate (405) is slidably installed in the slide groove (404), and the bottom end of the sealing plate (405) is fixedly connected to the side wall of the limiting plate (402), the top and bottom ends of the sealing plate (405) are respectively provided with a second air hole (4051) of the same size as the first air hole (4041), the spacing length between two adjacent second air holes (4051) is greater than the height of the second air hole (4051), and the docking joint (406) is connected to the exhaust hole (407).

3. A self-enclosed flame-retardant communication cabinet according to claim 2, characterized in that: The two gas storage cylinders (401) are both filled with high-pressure dry carbon dioxide gas.

4. The self-enclosed flame-retardant communication cabinet according to claim 2, characterized in that: The initial state of the electric telescopic rod (403) is an extended state, the extended length of the electric telescopic rod (403) is greater than the height of the second air vent (4051), and the extended length of the electric telescopic rod (403) is less than the distance between two upper and lower adjacent second air vents (4051).

5. The self-enclosed flame-retardant communication cabinet according to claim 1, characterized in that: The heat dissipation assembly (5) comprises two pressure relief pipes (501), two cavities (502) and two fans (503); the cavities (502) are respectively located on both sides of the top of the control box (3); the cavities (502) are connected to the heat dissipation holes (202) on the cabinet door (2) and the first air holes (4041) on the slide groove (404); the fans (503) are fixedly installed in the cavities (502); one end of the pressure relief pipe (501) is connected to the edge of the cavity (502); the other end of the pressure relief pipe (501) is connected to the exhaust hole (407); and a one-way pressure valve (5011) is provided at the connection between the pressure relief pipe (501) and the cavity (502).

6. A self-enclosed flame-retardant communication cabinet according to claim 5, characterized in that: The pressure relief pipe (501) is arranged vertically upward, and the setting value of the one-way pressure valve (5011) is greater than the pressure value at the top of the pressure relief pipe (501) after the carbon dioxide gas is diverted and flows.

7. The self-enclosed flame-retardant communication cabinet according to claim 6, characterized in that: The setting value of the one-way pressure valve (5011) is smaller than the pressure value of the airflow flowing in the cavity (502) during the rotation of the fan (503).

8. The self-enclosed flame-retardant communication cabinet according to claim 1, characterized in that: The rapid air guide assembly (6) comprises an air guide hole (601) and a docking groove (602); the air guide holes (601) are evenly arranged on the side wall of the support plate (1031), and the air guide holes (601) on the plurality of support plates (1031) are connected; the docking groove (602) is connected to the air guide hole (601), and the docking groove (602) is arranged at the front end of the support frame (103); the position of the docking groove (602) corresponds to the position of the docking head (406).

9. The self-enclosed flame-retardant communication cabinet according to claim 8, characterized in that: The docking joint (406) is configured to be spherical, the end of the docking groove (602) is configured to be an arc shape that matches the docking joint (406), and the docking joint (406) fits into the docking groove (602) when the cabinet door (2) is closed.

10. The self-enclosed flame-retardant communication cabinet according to claim 9, characterized in that: The end of the docking joint (406) is made of silicone material.

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