High-low voltage power distribution cabinet with fireproof function

Abstract

The utility model discloses a high-low voltage power distribution cabinet with a fireproof function, which relates to the technical field of power distribution cabinets and comprises a cabinet body, a fireproof mechanism is fixedly mounted at the top of the cabinet body, an alarm mechanism is fixedly mounted at the top in the cabinet body, a mounting seat is fixedly mounted at the lower end in the cabinet body, and a cabinet door is hinged to the front surface of the cabinet body. With the adoption of the structure, the device is provided with the fireproof mechanism, the fire extinguishing agent tank can be conveniently mounted, and the fire extinguishing agent tank is communicated with the conveying pipe frame after the fire extinguishing agent tank, the connecting hose and the valve are fixed through the hand-twisted screw rod; the fire extinguishing agent tank can be quickly disassembled by loosening the sealing screw cap, maintenance and replacement are convenient, the device adopts a physical fusing trigger structure, automatic fire extinguishing is achieved, extra detection is not needed, the stable fire extinguishing performance is achieved, operation is convenient, and the device is suitable for various fire fighting scenes.

Description

Technical Field

[0001] The utility model belongs to the technical field of power distribution cabinets, and particularly relates to a high and low voltage power distribution cabinet with fire prevention function. Background Art

[0002] The low-voltage distribution cabinet is an important power equipment, which is mainly used for power distribution and control. Specifically, the low-voltage distribution cabinet uses the distribution system of AC 50Hz and rated voltage 380v as the power to realize the power conversion and control of lighting and power distribution. Its structural characteristics include strong breaking capacity, good dynamic thermal stability, flexible electrical scheme, convenient combination, etc. Therefore, it plays a key role in the power system. The main functions of the low-voltage distribution cabinet include power distribution, protection and control, as well as signal transmission. It can distribute the power from the transformer or other power supply equipment to different electrical equipment to realize power supply and power consumption control. At the same time, the low-voltage distribution cabinet can also protect and control the circuit, such as overload protection, short-circuit protection, leakage protection, etc., to ensure the safety and stable operation of the circuit. In addition, it can also transmit the power signal to the upper control system to realize the monitoring and management of the entire power system.

[0003] The Chinese patent with the publication number "CN217720341U" discloses a high-low voltage distribution cabinet with a fire extinguishing function, which includes a distribution cabinet for fire extinguishing, a fire extinguishing device for extinguishing the fire source inside the distribution cabinet is arranged above the distribution cabinet, an alarm device for warning of fire in the distribution cabinet is arranged on the right side of the fire extinguishing device, and the lower part of the alarm device is fixedly installed on the upper surface of the distribution cabinet, and the distribution cabinet includes a distribution cabinet outer frame. The high-low voltage distribution cabinet with a fire extinguishing function detects the high temperature and smoke of the flame inside the distribution cabinet through a temperature sensor and a smoke sensor, and transmits it to a controller, and the controller controls the solenoid valve to open, and the carbon dioxide inside the fire extinguishing device quickly sprays the carbon dioxide inside the distribution cabinet through a pipe and a spray device to extinguish the fire, thereby further reducing the damage to the distribution components, thereby achieving the effect of improving the practicality of the equipment.

[0004] Although the above-mentioned fire extinguishing structure can achieve a good fire extinguishing effect during use, in its specific application process, it uses sensors to assist in detection. The fire situation during use is complicated. When many fires are in the initial stage, the temperature and smoke in the cabinet often do not change. If the fire point appears at the power supply line position, it is very easy to blow the cabinet circuit first. The internal circuit of the electrical rail is cut off, which will cause the sensor to lose circuit supply, thereby causing the sensor to fail, causing the fire extinguishing mechanism of the entire circuit to fail. It can be seen that it has certain defects and shortcomings and needs to be improved. Utility Model Content

[0005] In view of the problems mentioned in the background technology, the purpose of the utility model is to provide a high and low voltage distribution cabinet with fire protection function to solve the problems raised by the background technology.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions:

[0007] A high and low voltage power distribution cabinet with fire prevention function, comprising a cabinet body, a fire prevention mechanism is fixedly installed on the top of the cabinet body, an alarm mechanism is fixedly installed on the top of the cabinet body, a mounting seat is fixedly installed on the lower end of the cabinet body, and a cabinet door is hinged on the front of the cabinet body;

[0008] The fire protection mechanism includes a top seat and a threaded joint, the top seat is fixedly installed on the top of the cabinet, a fire extinguishing agent tank is placed on the inner side of the top seat, a hose is fixedly connected to one side of the fire extinguishing agent tank, the hose and the threaded joint are threadedly connected, the threaded joint is fixedly installed in the middle of the top front side of the top seat, the bottom of the threaded joint passes through the top seat and the cabinet to fix a delivery pipe rack, the inner side of the bottom of the delivery pipe rack is fixedly connected with a nozzle at equal intervals, the bottom of the nozzle is threadedly connected with a sealing screw cap, the inner side of the sealing screw cap is fixedly connected with a fuse sealing plug, and the fuse sealing plug is set to a tin-based alloy sealing plug.

[0009] As a preferred technical solution, sliding grooves are provided at equal intervals on the inner side of the mounting seat, and slide plates are slidably connected to the inner sides of the sliding grooves, and an electrical appliance mounting plate is fixedly installed on the inner side of the slide plates.

[0010] As an optimal technical solution, a limiting plate is fixedly installed on the top rear side of the top seat, and fixing plates are fixedly installed on both ends of the top front side of the top seat, and the upper end of the fixing plate is threadedly connected with a hand screw.

[0011] As a preferred technical solution, the rear end of the hand-tightened screw passes through the fixing plate and is fixedly connected to an anti-slip pad, and the front end surface of the limiting plate is provided with an arc groove.

[0012] As an optimal technical solution, the alarm mechanism includes a frame, which is fixedly installed on the top of the cabinet, an inner rail is fixedly installed in the middle of the inner side of the frame, one end of the inner side of the inner rail is fixedly connected to a telescopic spring, the end of the telescopic spring is fixedly connected to a slider, the top of the slider is fixedly connected to an outer conductor, the front of the frame is fixedly connected to a connecting frame, the top of the connecting frame is fixedly installed with a buzzer, the rear side of the buzzer is fixedly installed with a concave seat, the inner ends of the concave seat are fixedly connected with the inner conductor, the inner conductor is connected to the buzzer through a wire, the bottom of the frame close to the buzzer and the bottom of the slider are fixedly connected to a limiting ring, and a fuse rod is inserted between the inner sides of the limiting rings.

[0013] As a preferred technical solution, the fuse rod is configured as a plastic rod, and the side surface of the outer conductor is configured in an L-shape.

[0014] As an optimal technical solution, a reserved groove is opened at the upper end of the front side of the cabinet door, the front end of the buzzer is inserted into the inner side of the reserved groove, the outer side of the buzzer is fixedly connected with a rubber sealing ring, and the outer side of the rubber sealing ring is fitly connected to the inner wall of the reserved groove.

[0015] In summary, the utility model mainly has the following beneficial effects:

[0016] First, the device is equipped with an alarm mechanism. When the high temperature of the fire burns the fuse rod, the telescopic spring that loses its support pushes the slider to move, so that the outer conductor contacts the inner conductor, thereby connecting the buzzer circuit and sounding an alarm. After use, the device can be reset by compressing the spring, moving the slider, and reinserting the fuse rod. In addition, the rubber sealing ring ensures the sealing performance of the reserved groove, and no sensor auxiliary detection is required. This design improves the fire prevention and early warning accuracy of the device, making it convenient to reuse;

[0017] Second, the device is equipped with a fire prevention mechanism, which can conveniently install the fire extinguishing agent tank. The fire extinguishing agent tank is fixed by a hand-tightening screw. After connecting the hose and the valve, the fire extinguishing agent tank is connected to the delivery pipe rack. In case of fire, the high temperature melts the sealing plug and the nozzle opens to release the fire extinguishing agent. After the fire is extinguished, the fire extinguishing agent tank can be quickly removed by loosening the sealing screw cap, which is convenient for inspection and replacement. The device adopts a physical fuse trigger structure, which automatically extinguishes the fire without additional detection. It has stable fire extinguishing performance and is easy to operate. It is suitable for various fire fighting scenes. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the internal structure of the cabinet of the utility model;

[0020] Figure 3 It is a schematic diagram of the fire prevention mechanism and the alarm mechanism of the utility model when viewed from above;

[0021] Figure 4 It is a side view structural diagram of the fire prevention mechanism and the alarm mechanism of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the alarm mechanism of the utility model.

[0023] Figure numerals: 1. cabinet; 2. fire prevention mechanism; 21. top seat; 22. threaded joint; 23. fire extinguisher tank; 24. hose; 25. delivery pipe rack; 26. nozzle; 27. sealing screw cap; 28. fuse sealing plug; 29. ​​limit plate; 210. fixing plate; 211. hand screw; 212. anti-skid pad; 3. alarm mechanism; 31. frame; 32. inner rail; 33. telescopic spring; 34. slider; 35. outer conductor; 36. connecting frame; 37. buzzer; 38. concave seat; 39. inner conductor; 310. limit ring; 311. fuse rod; 312. rubber sealing ring; 4. mounting seat; 5. cabinet door; 6. slide groove; 7. slide plate; 8. electrical installation plate; 9. reserved groove. DETAILED DESCRIPTION

[0024] Example

[0025] refer to Figures 1 to 5 , a high and low voltage power distribution cabinet with fire prevention function of this embodiment includes a cabinet 1, a fire prevention mechanism 2 is fixedly installed on the top of the cabinet 1, an alarm mechanism 3 is fixedly installed on the top of the cabinet 1, a mounting seat 4 is fixedly installed at the lower end of the cabinet 1, and a cabinet door 5 is hinged on the front of the cabinet 1;

[0026] The fire prevention mechanism 2 includes a top seat 21 and a threaded joint 22. The top seat 21 is fixedly installed on the top of the cabinet 1. A fire extinguishing agent tank 23 is placed on the inner side of the top seat 21. A hose 24 is fixedly connected to one side of the fire extinguishing agent tank 23. The hose 24 and the threaded joint 22 are threadedly connected. The threaded joint 22 is fixedly installed in the middle of the top front side of the top seat 21. The bottom of the threaded joint 22 passes through the top seat 21 and the cabinet 1 and is fixedly installed with a delivery pipe rack 25. The bottom inner side of the delivery pipe rack 25 is fixedly connected with a nozzle 26 at equal intervals. The bottom of the nozzle 26 is threadedly connected with a sealing screw cap 27. The inner side of the sealing screw cap 27 is fixedly connected with a fuse sealing plug 28. The fuse sealing plug 28 is set as a tin-based alloy sealing plug. The top seat 21 and the threaded joint 22 are used to fix and connect the fire extinguishing agent tank 23. The fire extinguishing agent tank 23 is connected to the threaded joint 2 through the hose 24. 2 is connected, the delivery pipe rack 25 runs through the cabinet 1, and a nozzle 26 is installed at the bottom. The nozzle 26 is controlled by a sealing screw cap 27 and a fusing sealing plug 28. When the temperature in the cabinet 1 rises to the melting point of the fusing sealing plug 28, the sealing plug is melted, and the nozzle 26 is opened to release the fire extinguishing agent to realize automatic fire extinguishing. In addition, an alarm mechanism 3 is also provided in the cabinet 1 for fire early warning. The whole device is reasonably designed and easy to operate, which can effectively improve the fire safety of the distribution cabinet. The tin-based alloy has high electrical conductivity and thermal conductivity, which enables it to quickly conduct heat in a high temperature environment. When the internal temperature of the cabinet 1 reaches the melting point of the tin-based alloy, the fusing sealing plug 28 will quickly melt, thereby opening the nozzle 26 and releasing the fire extinguishing agent to extinguish the fire. This physical fusing trigger structure can automatically trigger fire extinguishing at high temperature, thereby improving the timeliness and effectiveness of fire extinguishing.

[0027] refer to Figure 2 The inner side of the mounting seat 4 is provided with slide grooves 6 at equal intervals, the inner side of the slide grooves 6 is slidably connected with slide plates 7, the inner side of the slide plates 7 is fixedly installed with an electrical installation plate 8, the slide grooves 6 cooperate with the slide plates 7 to assist in the installation of the electrical installation plate 8, at this time the electrical installation plate 8 can be easily adjusted in position or removed, which is convenient for the installation, maintenance and replacement of the equipment.

[0028] refer to Figure 4 A limit plate 29 is fixedly installed on the top rear side of the top seat 21, and fixed plates 210 are fixedly installed on both ends of the top front side of the top seat 21. The upper end of the fixing plate 210 is threadedly connected with a hand screw 211. The limit plate 29 is used to limit the backward movement of the fire extinguishing agent tank 23. Fixed plates 210 are provided at both ends of the top front side of the top seat 21. The upper end of the fixing plate 210 is threadedly connected with a hand screw 211. By twisting the hand screw 211, the anti-slip pad 212 can be driven to move backward, so that the anti-slip pad 212 fits the front of the fire extinguishing agent tank 23, thereby fixing the fire extinguishing agent tank 23 between the limit plate 29 and the inner side of the fixing plate 210. This design makes the installation and disassembly of the fire extinguishing agent tank 23 more convenient, and improves the flexibility and use efficiency of the distribution cabinet.

[0029] refer to Figure 4 The rear end of the hand screw 211 passes through the fixed plate 210 and is fixedly connected with an anti-skid pad 212. An arc groove is provided on the front end face of the limiting plate 29, and an anti-skid pad 212 is arranged at the rear end of the hand screw 211. This design allows the user to rotate the hand screw 211 to move the anti-skid pad 212 and fit it on the fire extinguishing agent tank 23, thereby stably fixing it between the limiting plate 29 and the fixed plate 210. The arc groove can fit the fire extinguishing agent tank 23, thereby improving the overall stability of the installation of the fire extinguishing agent tank 23.

[0030] refer to Figure 3-Figure 5The alarm mechanism 3 includes a frame 31, which is fixedly installed on the top of the cabinet 1. An inner rail 32 is fixedly installed in the middle of the inner side of the frame 31. A telescopic spring 33 is fixedly connected to one end of the inner side of the inner rail 32. A slider 34 is fixedly connected to the end of the telescopic spring 33. An outer conductor 35 is fixedly connected to the top of the slider 34. A connecting frame 36 is fixedly connected to the front of the frame 31. A buzzer 37 is fixedly installed on the top of the connecting frame 36. A concave-shaped The inner ends of the concave seat 38 are fixedly connected with inner conductors 39, and the inner conductors 39 are connected to the buzzer 37 through wires. The bottom of the frame 31 is close to the buzzer 37 and the bottom of the slider 34 is fixedly connected with a limit ring 310. A fuse rod 311 is inserted between the inner sides of the limit rings 310. The fuse rod 311 is inserted between the two sets of limit rings 310, which plays a role in supporting the slider 34, so that the slider 34 is kept in a certain position. At this time, the outer conductor 35 and the slider 34 are fixedly connected. The inner conductor 39 in the concave seat 38 remains separated, and the circuit of the buzzer 37 is in a disconnected state, and no alarm sound is generated. However, when a fire occurs inside the cabinet 1 and the temperature rises rapidly, the fuse rod 311 will quickly melt due to the high temperature. Once the fuse rod 311 melts, it loses its support for the slider 34, and the telescopic spring 33 will push the slider 34 forward. As the slider 34 moves, the outer conductor 35 on its top gradually approaches and eventually contacts the inner conductor 39 in the concave seat 38, thereby closing the circuit of the buzzer 37. At this time, the buzzer 37 starts to sound an alarm to remind people to pay attention to the occurrence of fire. The advantage of this alarm mechanism 3 is that it responds quickly, accurately and reliably. Due to the use of a physical fuse trigger structure, it can automatically trigger an alarm in a high temperature environment without relying on an external sensor or power supply, thereby improving the stability and reliability of the system. In addition, the alarm mechanism 3 has a simple structure and is easy to install, which is convenient for daily maintenance and overhaul.

[0031] refer to Figure 5 The fuse rod 311 is set as a plastic rod, the side shape of the outer conductor 35 is set in an L shape, and the fuse rod 311 is set as a plastic rod. The fuse inner rod is made of plastic material, and the whole can be quickly fused, which is convenient for the use of the device.

[0032] refer to Figure 1-Figure 5 A reserved groove 9 is provided at the upper front end of the cabinet door 5, and the front end of the buzzer 37 is inserted into the inner side of the reserved groove 9. A rubber sealing ring 312 is fixedly connected to the outer side of the buzzer 37. The outer side of the rubber sealing ring 312 is fitted with the inner wall of the reserved groove 9. The rubber sealing ring 312 is provided to fit the inner side of the reserved groove 9. The rubber sealing ring 312 is relatively soft and can be deformed to facilitate the insertion of the buzzer 37 into the inner side of the reserved groove 9, while improving its sealing performance.

[0033] Principle and advantages of use: By setting up the fire prevention mechanism 2, the fire extinguishing agent tank 23 can be placed on the top of the top seat 21 during use of the device, and the anti-skid pad 212 can be moved backward by twisting the hand screw 211, and the anti-skid pad 212 is attached to the front of the fire extinguishing agent tank 23, so that the fire extinguishing agent tank 23 can be fixed between the inner side of the limit plate 29 and the fixing plate 210. At this time, the hose 24 and the threaded joint 22 are connected, and then the valve at the output end of the fire extinguishing agent tank 23 is opened, so that the fire extinguishing agent tank 23 and the delivery pipe rack 25 can be connected. During the fire, the internal temperature of the cabinet 1 rises, and the high temperature can melt the fusible sealing plug 28 inside the sealing screw cover 27, and the fusible sealing plug 28 is melted to cause the nozzle 2 6 is opened, at this time, the fire extinguishing agent in the fire extinguishing agent tank 23 can be discharged into the interior of the cabinet 1 through the nozzle 26, which can perform a better fire extinguishing function on the interior of the cabinet 1. When maintenance is required after the fire extinguishing is completed, it is only necessary to loosen the sealing screw cap 27 to remove the sealing screw cap 27 and the fuse sealing plug 28. At this time, by replacing the sealing screw cap 27 and then loosening the hand-screwed screw 211, the anti-slip pad 212 can be driven away from the fire extinguishing agent tank 23, which is convenient for quick removal of the fire extinguishing agent tank 23 and convenient for the flexible disassembly and assembly of the fire extinguishing agent tank 23 for operation and use of the device, which can improve the overall convenience of use of the device, and the physical fuse trigger structure is adopted during its use, which can automatically trigger fire extinguishing at high temperature, and has a relatively stable fire extinguishing performance as a whole;

[0034] By setting the alarm mechanism 3, when a fire occurs during the use of the device, the high temperature will first burn out the fuse rod 311. When the fuse rod 311 is burned out, the limit support structure between the limit rings 310 is lost, and the telescopic spring 33 is reset to push the slider 34 to move. The movement of the slider 34 can drive the outer conductor 35 to be inserted between the inner conductors 39 of the concave seat 38. The outer conductor 35 and the inner conductor 39 contact each other. At this time, the two inner conductors 39 are electrically connected through the outer conductor 35, and the circuit connection of the buzzer 37 is connected. The buzzer 37 is powered and an alarm can be sounded to warn. When use is completed, It is only necessary to push the slider 34 to compress the telescopic spring 33, causing the telescopic spring 33 to be in a tightened state. At this time, the outer conductor 35 and the inner conductor 39 are separated, and then the fuse rod 311 is inserted between the inner sides of the two sets of limit rings 310 for support. In this way, the inner conductor 39 and the outer conductor 35 can be separated, which can be easily replaced and reused. During use, the outer side of the rubber sealing ring 312 fits against the inner side of the reserved groove 9, which can provide better sealing performance for the inner side of the reserved groove 9, so that the device as a whole does not need sensors for auxiliary detection, which can improve the accuracy of the overall fire prevention and early warning of the device.

Claims

1. A high and low voltage distribution cabinet with fire prevention function, comprising a cabinet body, characterized in that: A fire prevention mechanism is fixedly installed on the top of the cabinet, an alarm mechanism is fixedly installed on the top of the cabinet, a mounting seat is fixedly installed on the lower end of the cabinet, and a cabinet door is hinged on the front of the cabinet; The fire protection mechanism includes a top seat and a threaded joint, the top seat is fixedly installed on the top of the cabinet, a fire extinguishing agent tank is placed on the inner side of the top seat, a hose is fixedly connected to one side of the fire extinguishing agent tank, the hose and the threaded joint are threadedly connected, the threaded joint is fixedly installed in the middle of the top front side of the top seat, the bottom of the threaded joint passes through the top seat and the cabinet to fix a delivery pipe rack, the inner side of the bottom of the delivery pipe rack is fixedly connected with a nozzle at equal intervals, the bottom of the nozzle is threadedly connected with a sealing screw cap, the inner side of the sealing screw cap is fixedly connected with a fuse sealing plug, and the fuse sealing plug is set to a tin-based alloy sealing plug.

2. A high and low voltage distribution cabinet with fire protection function according to claim 1, characterized in that: The inner side of the mounting seat is provided with sliding grooves at equal intervals, the inner sides of the sliding grooves are slidably connected with slide plates, and the inner side of the slide plates is fixedly installed with an electrical appliance mounting plate.

3. A high and low voltage power distribution cabinet with fire protection function according to claim 1, characterized in that: A limiting plate is fixedly installed on the rear side of the top of the top seat, and fixing plates are fixedly installed on both ends of the front side of the top of the top seat. The upper end of the fixing plate is threadedly connected with a hand screw.

4. A high and low voltage power distribution cabinet with fire protection function according to claim 3, characterized in that: The rear end of the hand-tightening screw rod passes through the fixing plate and is fixedly connected with an anti-skid pad. The front end surface of the limiting plate is provided with an arc groove.

5. The high and low voltage distribution cabinet with fire protection function according to claim 1 is characterized in that: The alarm mechanism includes a frame, which is fixedly installed on the top of the cabinet, an inner rail is fixedly installed on the inner middle part of the frame, one inner end of the inner rail is fixedly connected to a telescopic spring, the end of the telescopic spring is fixedly connected to a slider, the top of the slider is fixedly connected to an outer conductor, the front of the frame is fixedly connected to a connecting frame, the top of the connecting frame is fixedly installed with a buzzer, the rear side of the buzzer is fixedly installed with a concave seat, the inner ends of the concave seat are fixedly connected with the inner conductor, the inner conductor is connected to the buzzer through a wire, the bottom of the frame close to the buzzer and the bottom of the slider are fixedly connected to a limiting ring, and a fuse rod is inserted between the inner sides of the limiting rings.

6. A high and low voltage power distribution cabinet with fire protection function according to claim 5, characterized in that: The fuse rod is configured as a plastic rod, and the side surface of the outer conductor is configured in an L-shape.

7. A high and low voltage power distribution cabinet with fire protection function according to claim 6, characterized in that: A reserved groove is provided at the upper front end of the cabinet door, the front end of the buzzer is plugged into the inner side of the reserved groove, a rubber sealing ring is fixedly connected to the outer side of the buzzer, and the outer side of the rubber sealing ring is fitted and connected to the inner wall of the reserved groove.

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