High-low voltage power distribution cabinet capable of improving safety performance

Abstract

The invention provides a high-low voltage power distribution cabinet capable of improving safety performance, which comprises a cabinet body, a gas storage tank, a communicating pipe, a trigger mechanism and a spray head, a plurality of support beams for installing different elements are arranged in the cabinet body, the gas storage tank is arranged on the cabinet body and is used for blowing and cooling the elements in the cabinet body, the communicating pipe is positioned in the cabinet body, and the trigger mechanism is used for triggering the spray head. One end of the gas storage tank penetrates out of the cabinet body and is communicated with a gas outlet of the gas storage tank, gas flow of the gas storage tank is accurately blown to each position in the cabinet body through the communicating pipe, the multiple nozzles are arranged and installed on the communicating pipe, the nozzles dispersedly spray gas flowing out of the communicating pipe, and the trigger mechanism is installed between the communicating pipe and the nozzles. And when the temperature or the element in the cabinet body is abnormal, the air storage tank and the nozzle are communicated through the communicating pipe. According to the high-low voltage power distribution cabinet capable of improving the safety performance, through the design of the integrated air storage tank and the communicating pipe, precise blowing cooling of elements in the cabinet body is achieved, and the heat dissipation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinet safety, and in particular to a high and low voltage power distribution cabinet with improved safety performance. Background Art

[0002] With the continuous development of modern industry, the power system plays a vital role in ensuring production and life. As a key component in the power system, the safety and stability of the distribution cabinet are directly related to the reliability of the entire system. However, during the operation of the distribution cabinet, due to the dense arrangement and continuous operation of the internal components, and the short circuit of the components after long-term use, the heat generated by the distribution cabinet may cause component damage or even fire if it cannot be effectively managed and controlled, thus posing a serious threat to personnel safety and equipment operation.

[0003] In the existing power distribution cabinet design, common heat dissipation and fire extinguishing technologies include passive heat dissipation systems and chemical fire extinguishing agents. Passive heat dissipation systems usually rely on heat sinks and air flow to dissipate heat, but their efficiency is limited by environmental conditions. For example, it is difficult to generate air flow in the computer room, and they cannot provide a quick response in an emergency. Although chemical fire extinguishing agents can control fires to a certain extent, their use conditions are strict and may cause secondary pollution to the environment and equipment. In addition, most existing fire extinguishing equipment can only extinguish fires in the entire computer room or manually, which can easily cause large losses.

[0004] The main drawback of the existing technology is the lack of an integrated power distribution cabinet safety system that can simultaneously achieve efficient heat dissipation and rapid fire extinguishing. Especially in the face of complex environments and sudden fires inside the power distribution cabinet, the existing solutions are difficult to achieve comprehensive protection of every corner of the cabinet, and the response speed and operation complexity cannot meet the dual needs of modern industry for safety and convenience. Summary of the invention

[0005] The purpose of the present invention is to provide a high and low voltage distribution cabinet with improved safety performance, so as to solve the technical problems of low heat dissipation efficiency and lack of rapid response fire extinguishing of internal components of the distribution cabinet in the prior art.

[0006] To achieve the above object, the technical solution of the present invention is achieved as follows: A high and low voltage power distribution cabinet with improved safety performance comprises a cabinet body, wherein a plurality of support beams for installing different components are arranged inside; a gas storage tank is installed on the cabinet body, and air is blown to cool the components inside the cabinet body; a connecting pipe is located on the support beam inside the cabinet body, one end of which passes through the cabinet body and is connected to the air outlet of the gas storage tank, and the airflow of the gas storage tank is accurately blown to each position in the cabinet body through the connecting pipe; a plurality of nozzles are arranged and installed on the connecting pipe respectively, and the nozzles disperse and spray the gas flowing out of the connecting pipe; a trigger mechanism is installed between the connecting pipe and the nozzle, and when the temperature or components in the cabinet body are abnormal, the gas storage tank and the nozzle are connected through the connecting pipe.

[0007] By adopting the above technical solution, efficient heat dissipation and rapid fire extinguishing of the internal components of the distribution cabinet are achieved, thereby improving the safety performance of the distribution cabinet.

[0008] Furthermore, the connecting pipe includes a vertical pipe arranged along the height direction of the cabinet and multiple horizontal pipes arranged along the transverse direction of the cabinet. The top of the vertical pipe extends out of the cabinet and is connected to the air outlet of the gas tank. The horizontal pipes are arranged on the vertical pipe and can be arranged following the trajectory of the support beam.

[0009] By adopting the above technical solution, the airflow can be accurately blown to every location in the cabinet, thereby improving the heat dissipation efficiency.

[0010] Furthermore, the trigger mechanism includes a connecting pipe connecting the horizontal pipe and the nozzle, an outer cover vertically connected to the connecting pipe, and a plug rod located in the outer cover for opening and closing the connecting pipe. One end of the plug rod extends into the connecting pipe, and the other end is provided with a temperature trigger part that drives the plug rod.

[0011] By adopting the above technical solution, a quick response is achieved when the temperature or components in the cabinet are abnormal.

[0012] Furthermore, the temperature triggering part includes a tension spring arranged inside the outer cover to pull the plug rod, a connecting rod inserted inside the tension spring, and a metal sheet supporting the connecting rod, and the connecting rod slides back and forth in the outer cover following the plug rod.

[0013] By adopting the above technical solution, flexible opening and closing of the temperature triggering unit is achieved, and the response speed of the system is improved.

[0014] Furthermore, a U-shaped piece is fixedly provided outside the outer cover, one end of the connecting rod is fixedly connected to the plug rod, and the other end extends out of the outer cover, and both ends of the metal sheet are supported on the U-shaped piece and the connecting rod respectively.

[0015] By adopting the above technical solution, the stability of the connecting rod is enhanced and the reliability of the system is ensured.

[0016] Furthermore, the outer cover is provided with a first chamber for placing a tension spring, a second chamber for sliding a connecting rod, and a third chamber opened on one side of the second chamber; a current triggering part for driving the plug rod is installed in the third chamber, and a locking part for fixing the valve stem is provided between the current triggering part and the connecting rod.

[0017] By adopting the above technical solution, the integrated design of the current triggering unit is realized, and the safety of the system is improved.

[0018] Furthermore, the current triggering part includes a coil wound in the third chamber to generate a magnetic field, a pin slidably arranged in the third chamber and the second chamber to push the connecting rod, and a spring located in the third chamber to support the pin, and the pin passes through the third chamber and abuts against the metal sheet.

[0019] By adopting the above technical solution, a rapid response of the current triggering unit is achieved, thereby improving the fire extinguishing efficiency of the system.

[0020] Furthermore, the locking portion includes a tapered rod fixedly arranged on one end of the ejector pin close to the connecting rod, a groove provided on the connecting rod for inserting the tapered rod, and a support block sliding radially along the connecting rod, and the tapered rod and the support block are in abutment with each other.

[0021] By adopting the above technical solution, the stability of the locking part is enhanced and the reliability of the system is ensured.

[0022] Furthermore, a through groove for the support block to slide is radially opened at the groove of the connecting rod, and the through groove and the groove are connected, and the tapered rod pushes the support block to abut against the inner wall of the second chamber.

[0023] By adopting the above technical solution, flexible sliding of the support block is achieved and the response speed of the system is improved.

[0024] Furthermore, a conductive sheet is fixedly provided on the ejector pin, a terminal is fixedly provided on the outer cover, the element and the coil are respectively connected to the conductive sheet and the terminal, and the ejector pin drives the conductive sheet to contact or separate from the terminal.

[0025] By adopting the above technical solution, the rapid start and stop of the current triggering unit is achieved, thereby improving the fire extinguishing efficiency of the system.

[0026] Compared with the prior art, the present invention has the following beneficial effects: The high and low voltage power distribution cabinet for improving safety performance according to the present invention realizes precise blowing and cooling of the components in the cabinet through the integrated design of the gas storage tank and the connecting pipe, improving the heat dissipation efficiency; by setting multiple nozzles, it realizes comprehensive protection of all corners in the cabinet, improving the safety of the system; through the design of the triggering mechanism, it realizes a rapid response when the temperature or components in the cabinet are abnormal, improving the fire extinguishing efficiency of the system; through the integrated design of the temperature triggering part and the current triggering part, the stability and reliability of the system are improved; through the design of the locking part, the stability of the system is enhanced, ensuring the reliability of the system; through the design of the thimble and the conductive sheet, the rapid start and stop of the current triggering part are realized, improving the fire extinguishing efficiency of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0028] In the drawings: Figure 1 is the overall schematic diagram of the high and low voltage power distribution cabinet for improving safety performance according to the embodiment of the present invention; Figure 2 is the schematic diagram of the internal structure of the cabinet according to the embodiment of the present invention; Figure 3 is the partial schematic diagram of the connecting pipe according to the embodiment of the present invention; Figure 4 is the schematic diagram of the triggering mechanism according to the embodiment of the present invention; Figure 5 is the exploded schematic diagram of the triggering mechanism according to the embodiment of the present invention; Figure 6 is the partial cross-sectional view of the temperature triggering part according to the embodiment of the present invention; Figure 7 is the exploded cross-sectional view of the triggering mechanism according to the embodiment of the present invention; Figure 8 is the exploded schematic diagram of the locking part according to the embodiment of the present invention.

[0029] Description of the reference numerals: 1. Cabinet; 2. Support beam; 3. Gas storage tank; 4. Connecting pipe; 401. Vertical pipe; 402. Horizontal pipe; 5. Triggering mechanism; 501.接管; 502. Outer cover; 503. Temperature triggering part; 5031. Tension spring; 5032. Connecting rod; 5033. Metal sheet; 5034. C-shaped part; 504. First chamber; 505. Second chamber; 506. Third chamber; 507, current triggering unit; 5071, coil; 5072, ejector pin; 5073, spring; 508, locking portion; 5081, tapered rod; 5082, groove; 5083, support block; 5084, through groove; 509, plug rod; 6. Nozzle; 7. Conductive sheet; 8. Terminal. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0031] In the description of the present invention, it should be noted that if there are terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc., they are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, if there are terms such as "first", "second", etc., they are also used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0033] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0034] This embodiment relates to a high and low voltage power distribution cabinet with improved safety performance. The overall structure is as follows: Figure 1 and Figure 2 As shown, it includes a cabinet 1, a gas storage tank 3, a connecting pipe 4, a trigger mechanism 5, and a nozzle 6.

[0035] Among them, multiple support beams 2 for installing different components are arranged inside the cabinet 1, and the gas tank 3 is installed on the cabinet 1 to blow air to cool the components inside the cabinet 1. The connecting pipe 4 is located inside the cabinet 1, and one end passes through the cabinet 1 and is connected to the air outlet of the gas tank 3. The airflow of the gas tank 3 is accurately blown to each position in the cabinet 1 through the connecting pipe 4. There are multiple nozzles 6, which are arranged and installed on the connecting pipe 4 respectively. The nozzle 6 disperses and sprays the gas flowing out of the connecting pipe 4. The trigger mechanism 5 is installed between the connecting pipe 4 and the nozzle 6. When the temperature or components in the cabinet 1 are abnormal, the gas tank 3 and the nozzle 6 are connected through the connecting pipe 4.

[0036] It is worth mentioning that high-pressure gas is stored in the gas tank 3. When the connecting pipe 4 and the nozzle 6 are connected, the gas enters the connecting pipe 4 from the gas tank 3 and is then sprayed out from the nozzle 6 to cool down or extinguish the fire in the cabinet 1. The arrangement of multiple nozzles 6 can improve the efficiency of cooling or extinguishing the fire. The gas tank 3 is also provided with an air inlet, and a one-way valve is arranged in the air inlet to ensure that the gas tank 3 can be regularly inflated. Multiple support beams 2 are installed at different positions in the cabinet 1 to ensure that different components can be installed. Of course, dry powder or carbon dioxide can also be filled in the gas tank 3 to improve the fire extinguishing efficiency. The trigger mechanism 5 can be triggered according to reasons such as temperature changes or current changes in the cabinet 1, thereby realizing the connection between the cross pipe 402 and the nozzle 6.

[0037] Based on the above overall introduction, an exemplary structure of a high and low voltage distribution cabinet with improved safety performance in this embodiment is as follows: Figure 3 As shown, the connecting pipe 4 includes a vertical pipe 401 arranged along the height direction of the cabinet 1 and a horizontal pipe 402 arranged along the horizontal direction of the cabinet 1. The top of the vertical pipe 401 extends out of the cabinet 1 and is connected with the gas outlet of the gas storage tank 3. There are multiple horizontal pipes 402, which are arranged on the vertical pipe 401. Specifically, the vertical pipe 401 and the gas storage tank 3 are connected by flanges. The vertical pipe 401 is installed at the corner of the cabinet 1 and extends from the top to the bottom of the cabinet 1. Such an arrangement can be convenient for disassembly and assembly. Multiple horizontal pipes 402 are arranged and installed on the vertical pipe 401. The horizontal pipe 402 can be installed following the track of the support beam 2. Such an arrangement ensures that each nozzle 6 can be located at a different component, thereby ensuring that each position of the component can be cooled or extinguished, so that rapid cooling or fire extinguishing can be achieved, and thus high safety.

[0038] As a preferred embodiment, Figure 4 and Figure 5 As shown, in this embodiment, the trigger mechanism 5 includes a pipe 501 connecting the horizontal pipe 402 and the nozzle 6, an outer cover 502 vertically connected to the pipe 501, and a plug rod 509 located in the outer cover 502 for opening and closing the pipe 501. One end of the plug rod 509 extends into the pipe 501, and the other end is provided with a temperature triggering part 503 that drives the plug rod 509. It should be noted that the pipe 501 extends from the side of the horizontal pipe 402 to ensure that it can be close to the component. The outer cover 502 and the pipe 501 are arranged vertically. The plug rod 509 slides back and forth in the outer cover 502, and one end of the plug rod 509 can be inserted into and withdrawn from the connecting pipe 501. When inserted, the connecting pipe 501 is in a blocked state, and when withdrawn, the connecting pipe 501 is in a connected state. The temperature trigger part 503 can trigger the connecting pipe 501 to slide according to the temperature change in the cabinet 1. If the temperature rises, the temperature trigger part 503 can drive the plug rod 509 to be withdrawn from the connecting pipe 501, thereby realizing the connection between the transverse pipe 402 and the nozzle 6, ensuring that the airflow in the transverse pipe 402 can be sprayed out.

[0039] Preferably, as Figure 6 shown, the temperature trigger part 503 of this embodiment includes a tension spring 5031 arranged inside the outer cover 502 to pull the plug rod 509, a connecting rod 5032 inserted inside the tension spring 5031, and a metal sheet 5033 supporting the connecting rod 5032. A C-shaped member 5034 is fixedly arranged outside the outer cover 502. One end of the connecting rod 5032 is fixedly connected to the plug rod 509, and the other end extends out of the outer cover 502. Both ends of the metal sheet 5033 are respectively supported on the C-shaped member 5034 and the connecting rod 5032. The metal sheet 5033 is made of a high-temperature deformed metal.

[0040] Specifically, one end of the tension spring 5031 is fixed on the inner wall of the outer cover 502, and the other end is fixed on the plug rod 509. That is to say, the tension spring 5031 can pull the plug rod 509 out of the connecting pipe 501. The connecting rod 5032 slides on the outer cover 502, which can assist the sliding of the plug rod 509 and ensure the stability of the sliding of the plug rod 509. The C-shaped member 5034 is located at the tail of the connecting rod 5032, which is convenient for the metal sheet 5033 to support the connecting rod 5032. With the C-shaped member 5034 as the support, the metal sheet 5033 can support the top of the connecting rod 5032, so as to ensure that the plug rod 509 is always inserted into the connecting pipe 501. At this time, the tension spring 5031 is in a stretched state. When the metal sheet 5033 is preheated and deformed, the supporting force changes after deformation, and it falls off from the C-shaped member 5034 after deformation. After the connecting rod 5032 loses support, the tension spring 5031 will pull the plug rod 509 out of the connecting pipe 501. The metal sheet 5033 is a preheat-deformable material, such as iron, nickel, tungsten, etc. that have certain thermal expansion properties can be used.

[0041] Preferably, as Figure 7As shown in the figure, a first chamber 504 for placing the tension spring 5031, a second chamber 505 for the connecting rod 5032 to slide, and a third chamber 506 opened on one side of the second chamber 505 are provided inside the outer cover 502 of this embodiment. An electric current trigger part 507 of the trigger plug rod 509 is installed in the third chamber 506, and a locking part 508 of the locking valve rod is arranged between the electric current trigger part 507 and the connecting rod 5032. Specifically, the first chamber 504, the second chamber 505, and the third chamber 506 are coaxially arranged to ensure that the connecting rod 5032 and the plug rod 509 can slide inside them. The first chamber 504 is internally connected to the接管 501 to ensure that the plug rod 509 can reciprocate between the first chamber 504 and the接管 501. The diameter of the connecting rod 5032 is smaller than the diameter of the plug rod 509. Such a setting ensures that the tension spring 5031 can be sleeved outside the connecting rod 5032. The tension spring 5031 is fixedly installed on the inner wall of the first chamber 504. The diameter of the connection part between the first chamber 504 and the second chamber 505 is the same as the diameter of the connecting rod 5032, ensuring that only the connecting rod 5032 can slide in the second chamber 505. The electric current trigger part 507 is installed at the tail of the connecting rod 5032. When the electric current is abnormal, for example, when a short circuit causes the electric current to increase, it can drive the plug rod 509 to be withdrawn from the接管 501, thereby extinguishing the fire or reducing the temperature at the short-circuit point to avoid the fire from spreading. And the locking part 508 can fix the plug rod 509 in this position to prevent the plug rod 509 from being accidentally triggered.

[0042] Preferably, still as Figure 7 shown in the figure, the electric current trigger part 507 of this embodiment includes a coil 5071 wound inside the third chamber 506 to generate a magnetic field, a thimble 5072 slidably arranged in the third chamber 506 and the second chamber 505 to push the connecting rod 5032, and a spring 5073 to support the thimble 5072. One end of the spring 5073 is installed on the inner wall of the third chamber 506, and the other end is installed on the thimble 5072.

[0043] Specifically, the U-shaped part 5034 is installed outside the third cavity. One end of the thimble 5072 abuts against the connecting part, and the other end passes through the third cavity and abuts against the metal sheet 5033. The coil 5071 is wound according to the left-hand rule to ensure that when the electric current suddenly increases, the magnetic force generated by the coil 5071 can drive the thimble 5072 to slide away from the plug rod 509. When sliding, the metal sheet 5033 is pushed to deform and fall off, and the spring 5073 is compressed. The connecting rod 5032 is no longer supported by the thimble 5072. Therefore, the pulling force of the tension spring 5031 can pull out the plug rod 509 from the接管 501, thereby realizing the connection between the nozzle 6 and the horizontal pipe 402. When the electric current is normal, the magnetic force of the magnetic field is small. The support of the metal sheet 5033, the elastic force of the spring 5073, and the locking of the locking part 508 can be greater than the pulling force of the tension spring 5031 and the magnetic force of the magnetic field, ensuring that the plug rod 509 is always inserted into the接管 501.

[0044] As a preferred example, Figure 8 As shown, the locking portion 508 of this embodiment includes a conical rod 5081 fixedly arranged on the ejector pin 5072 near one end of the connecting rod 5032, a groove 5082 provided on the connecting rod 5032 for the conical rod 5081 to be inserted, and a support block 5083 that slides radially along the connecting rod 5032. A through groove 5084 is radially provided on the connecting rod 5032 for the support block 5083 to slide. The through groove 5084 and the groove 5082 are connected to each other, and the conical rod 5081 pushes the support block 5083 to abut against the inner wall of the second chamber 505. Specifically, the depth of the groove 5082 is the same as the length of the tapered rod 5081. When the metal sheet 5033 and the spring 5073 support the ejector pin 5072, the tapered rod 5081 will be inserted into the groove 5082 and abut against the support block 5083, pushing the support block 5083 to slide to the outside of the through groove 5084. The support block 5083 is arranged in this way to abut against the inner wall of the second chamber 505 and generate friction, thereby ensuring that the plug rod 509 is fixed in this position. When the ejector pin 5072 is driven to slide by the magnetic force of the coil 5071, the tapered rod 5081 is pulled out of the groove 5082. After the support block 5083 has no thrust, it no longer abuts against the inner wall of the second chamber 505, the friction disappears, and the plug rod 509 is not fixed in this position.

[0045] As a preferred example, Figure 4 and Figure 8 As shown, in this embodiment, a conductive sheet 7 is fixedly provided on the ejector pin 5072, and a terminal 8 is fixedly provided on the outer cover 502. The element and the coil 5071 are respectively connected to the conductive sheet 7 and the terminal 8. The conductive sheet 7 and the terminal 8 are in contact to form a passage. Specifically, the conductive sheet 7 can move with the ejector pin 5072. When the plug rod 509 is located in the connecting pipe 501, the position of the ejector pin 5072 can ensure that the conductive sheet 7 and the terminal 8 are in contact. When the ejector pin 5072 slides, the conductive sheet 7 and the terminal 8 are separated, thereby realizing circuit disconnection.

[0046] The high and low voltage distribution cabinet with improved safety performance in this embodiment realizes precise air blowing and cooling of the components in the cabinet 1 through the integrated design of the gas tank 3 and the connecting pipe 4, thereby improving the heat dissipation efficiency; by setting up multiple nozzles 6, comprehensive protection of all corners in the cabinet 1 is achieved, thereby improving the safety of the system; through the design of the trigger mechanism 5, a rapid response is achieved when the temperature or components in the cabinet 1 are abnormal, thereby improving the fire extinguishing efficiency of the system; through the integrated design of the temperature trigger part 503 and the current trigger part 507, the stability and reliability of the system are improved; through the design of the locking part 508, the stability of the system is enhanced and the reliability of the system is ensured; through the design of the ejector pin 5072 and the conductive sheet 7, the rapid start and stop of the current trigger part 507 is achieved, thereby improving the fire extinguishing efficiency of the system.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high and low voltage distribution cabinet with improved safety performance, characterized in that: include: A cabinet (1) having a plurality of support beams (2) arranged inside for mounting different components; An air storage tank (3) is installed on the cabinet (1) and blows air to cool down the components inside the cabinet (1); A connecting pipe (4) is located on the support beam (2) inside the cabinet (1), one end of which passes through the cabinet (1) and is connected to the air outlet of the gas storage tank (3), and the airflow of the gas storage tank (3) is accurately blown to every position in the cabinet (1) through the connecting pipe (4); A plurality of nozzles (6) are arranged and mounted on the connecting pipe (4) respectively, and the nozzles (6) disperse and spray the gas flowing out of the connecting pipe (4); The trigger mechanism (5) is installed between the connecting pipe (4) and the nozzle (6). When the temperature or components in the cabinet (1) are abnormal, the gas storage tank (3) and the nozzle (6) are connected through the connecting pipe (4).

2. The high and low voltage distribution cabinet with improved safety performance according to claim 1, characterized in that: The connecting pipe (4) comprises a vertical pipe (401) arranged along the height direction of the cabinet (1) and a plurality of horizontal pipes (402) arranged along the transverse direction of the cabinet (1); the top of the vertical pipe (401) extends out of the cabinet (1) and is connected to the gas outlet of the gas storage tank (3); the horizontal pipes (402) are arranged in an array on the vertical pipe (401) and can be arranged along the trajectory of the support beam (2).

3. The high and low voltage distribution cabinet with improved safety performance according to claim 2 is characterized in that: The trigger mechanism (5) comprises a connecting pipe (501) connecting the transverse pipe (402) and the nozzle (6), an outer cover (502) vertically connected to the connecting pipe (501), and a plug rod (509) located in the outer cover (502) and used for opening and closing the connecting pipe (501); one end of the plug rod (509) extends into the connecting pipe (501), and the other end is provided with a temperature triggering portion (503) for driving the plug rod (509).

4. The high and low voltage distribution cabinet with improved safety performance according to claim 3 is characterized in that: The temperature triggering part (503) comprises a tension spring (5031) arranged inside the outer cover (502) for pulling the plug rod (509), a connecting rod (5032) inserted inside the tension spring (5031), and a metal sheet (5033) supporting the connecting rod (5032); the connecting rod (5032) slides back and forth in the outer cover (502) following the plug rod (509).

5. The high and low voltage distribution cabinet with improved safety performance according to claim 4 is characterized in that: A U-shaped piece (5034) is fixedly arranged outside the outer cover (502); one end of the connecting rod (5032) is fixedly connected to the plug rod (509), and the other end extends out of the outer cover (502); and both ends of the metal sheet (5033) are supported on the U-shaped piece (5034) and the connecting rod (5032), respectively.

6. The high and low voltage distribution cabinet with improved safety performance according to claim 4, characterized in that: The outer cover (502) is provided with a first chamber (504) for accommodating a tension spring (5031), a second chamber (505) for sliding a connecting rod (5032), and a third chamber (506) provided on one side of the second chamber (505); a current triggering portion (507) for driving a plug rod (509) is installed in the third chamber (506); and a locking portion (508) for fixing a valve stem is provided between the current triggering portion (507) and the connecting rod (5032).

7. The high and low voltage distribution cabinet with improved safety performance according to claim 6, characterized in that: The current triggering unit (507) comprises a coil (5071) wound in the third chamber (506) for generating a magnetic field, a pin (5072) slidably arranged in the third chamber (506) and the second chamber (505) for pushing the connecting rod (5032), and a spring (5073) located in the third chamber (506) for supporting the pin (5072); the pin (5072) passes through the third chamber (506) and abuts against the metal sheet (5033).

8. The high and low voltage distribution cabinet with improved safety performance according to claim 7, characterized in that: The locking portion (508) comprises a tapered rod (5081) fixedly arranged on one end of the ejector pin (5072) close to the connecting rod (5032), a groove (5082) provided on the connecting rod (5032) for the tapered rod (5081) to be inserted, and a support block (5083) that slides radially along the connecting rod (5032), wherein the tapered rod (5081) and the support block (5083) are in abutment with each other.

9. The high and low voltage distribution cabinet with improved safety performance according to claim 8, characterized in that: A through groove (5084) for the support block (5083) to slide is radially opened at the groove (5082) of the connecting rod (5032), and the through groove (5084) and the groove (5082) are connected to each other. The conical rod (5081) pushes the support block (5083) to abut against the inner wall of the second chamber (505).

10. The high and low voltage distribution cabinet with improved safety performance according to claim 7, characterized in that: A conductive sheet (7) is fixedly provided on the ejector pin (5072), a terminal (8) is fixedly provided on the outer cover (502), the element and the coil (5071) are respectively connected to the conductive sheet (7) and the terminal (8), and the ejector pin (5072) drives the conductive sheet (7) and the terminal (8) to make contact or separate.

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