Power distribution cabinet for electric power engineering

Abstract

The invention relates to the technical field of power distribution cabinets, and discloses an electric power engineering power distribution cabinet which comprises a cabinet body and a cabinet door arranged on the front face of the cabinet body, a sensor group is installed in the cabinet body, a control groove is formed in the top of the cabinet body, and an air guide frame communicating with the interior of the control groove is formed in the back face of the cabinet body. A filter plate is detachably mounted in the air guide frame, and an air guide pipeline is fixedly mounted in the cabinet body. According to the power distribution cabinet for the electric power engineering, the conversion assembly is arranged and used for converting and adjusting the air exhaust opening and the air exhaust opening of the air pump, so that when the air pump works, air exhaust work can be carried out on the interior of the air guide pipeline through the ventilation pipe, then air exhaust work in the power distribution cabinet is formed, the oxygen content in the power distribution cabinet is reduced, and then fire extinguishing work is formed; the power distribution cabinet has good ventilation and heat dissipation functions, the service life of the power distribution cabinet is prolonged, the power distribution cabinet has good fire extinguishing and protection functions, and the functionality of the power distribution cabinet is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, in particular to a power distribution cabinet for electric power engineering. Background Art

[0002] The distribution cabinet is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet, which is the final equipment of the power distribution system. The distribution cabinet is a general term for the motor control center. The distribution cabinet is used in places where the load is relatively dispersed and there are fewer circuits; the motor control center is used in places where the load is concentrated and there are more circuits. When the electrical components inside the distribution cabinet are working, a lot of high temperature will be generated. In order to improve the working stability of its electrical components, the distribution cabinet is generally equipped with a corresponding heat dissipation mechanism, and the heat dissipation is processed through the built-in heat dissipation mechanism of the distribution cabinet.

[0003] At present, the existing power distribution cabinets mostly use fans for heat dissipation, and the fans accelerate the fluidity of the gas to form a rapid heat dissipation work; however, during the long-term operation of the power distribution cabinet, due to short circuits, overloads, poor contacts, device defects or aging of the internal electrical components of the power distribution cabinet, not only high temperatures but also sparks will be generated; and the fire protection performance of the existing power distribution cabinet is poor, so that when the above situation occurs, manual fire extinguishing is generally required, and the fire extinguishing timeliness is lacking. At the same time, if sparks appear inside the distribution box, combined with the flowing air, it is easy to accelerate the generation of fire, causing irreparable losses. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an electric power engineering distribution cabinet, which is used to convert and adjust the suction port and exhaust port of the air pump through the setting of a conversion component, so that when the air pump is working, it can exhaust air to the inside of the air guide duct through the ventilation pipe, thereby forming an internal air extraction operation of the distribution cabinet, reducing the oxygen content inside the distribution cabinet, and thus forming a fire extinguishing operation. It not only has good ventilation and heat dissipation functions, thereby increasing the service life of the distribution cabinet, but also has good fire extinguishing protection functions, thereby improving the functionality of the distribution cabinet, and solving the problem that the existing power distribution cabinet cannot combine the ventilation and heat dissipation mechanism to perform fire protection on the temporal part of the cabinet body.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an electric power engineering distribution cabinet, comprising a cabinet body and a cabinet door arranged on the front of the cabinet body, a sensor group is installed inside the cabinet body, a control slot is opened on the top of the cabinet body, and an air guide frame connected to the inside of the control slot is opened on the back of the cabinet body, and a filter plate is detachably installed inside the air guide frame, an air guide duct is fixedly installed inside the cabinet body, and one-way exhaust components are arranged on both sides of the cabinet body;

[0008] An air pump is fixedly connected to the top of the inner wall of the control groove, and the air outlet and the air suction port of the air pump are connected to the air guide duct through a ventilation pipe, and a conversion component for converting the air outlet and the air suction port of the air pump is installed on the ventilation pipe, and a gas fire extinguishing component for injecting carbon dioxide gas into the air guide duct is arranged inside the control groove;

[0009] The air guide duct comprises an air guide pipe fixed inside the cabinet, and the top end of the air guide pipe is fixedly connected with a cylindrical tube.

[0010] Preferably, the conversion assembly comprises a T-shaped suction pipe and a T-shaped exhaust pipe fixedly connected to the suction port and the exhaust port of the air pump, two piston cylinders are fixedly connected between the two ends of the T-shaped suction pipe and the T-shaped exhaust pipe, and the middle parts of the two piston cylinders are fixedly connected with connecting pipes, and one end of one of the connecting pipes is fixedly connected to one end of the cylindrical cylinder;

[0011] The two piston cylinders are respectively provided with blocking blocks for blocking the ports of the T-shaped suction pipe and the T-shaped exhaust pipe, and the control groove is provided with a driving member for alternately driving the two blocking blocks.

[0012] Preferably, the driving member includes a tilting frame rotatably connected to the inside of the control groove via a rotating shaft, one side of the tilting frame is slidably connected to two hinged seats, the inside of the two hinged seats are both hinged with driving shafts, and one end of the two driving shafts is fixedly connected to the two blocking blocks respectively.

[0013] Preferably, a movable shaft is fixedly connected to one side of the bottom of the tilting frame, and the outer surface of the movable shaft is rotatably connected to a rotating sleeve, the bottom of the inner wall of the control groove is rotatably connected to an electric telescopic rod through a rotating shaft, and the telescopic end of the electric telescopic rod is fixedly connected to the rotating sleeve.

[0014] Preferably, the gas fire extinguishing assembly includes a pressure tank fixed inside the control groove, the top of the cabinet is fixedly connected to an injection pipe for injecting carbon dioxide gas into the pressure tank, and a valve is installed on the injection pipe, the pressure tank is fixedly connected to the other end of the cylindrical tube through an output pipe, and a control component for controlling the output pipe is arranged inside the cylindrical tube.

[0015] Preferably, the control member includes a piston column slidably connected to the inside of the cylindrical tube through a sealing sleeve, the piston column is used to seal and block the output port of the output tube, the end of the piston column is fixedly connected to a control shaft, and one end of the control shaft extends to the outside of the cylindrical tube.

[0016] Preferably, the one-way exhaust assembly includes a grid frame fixed to the side of the cabinet and an exhaust pipe fixedly connected to the inner side of the cabinet, and one end of the exhaust pipe is connected to the interior of the grid frame, and a one-way valve is installed on the exhaust pipe.

[0017] Preferably, both sides of the inner wall of the cabinet are slidably connected with T-shaped cover plates for covering the exhaust outlet of the exhaust duct, a U-shaped connecting frame is fixedly connected between the tops of the two T-shaped cover plates, and the U-shaped connecting frame is fixedly connected to one end of the control shaft.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the present invention provides a power engineering distribution cabinet, which has the following beneficial effects:

[0020] 1. The present invention can inject gas into the interior of the air guide duct through the ventilation pipe through the setting of the air pump, thereby forming an internal heat dissipation operation of the distribution cabinet. The conversion component is set to convert and adjust the air suction port and the exhaust port of the air pump, so that when the air pump is working, it can extract air from the interior of the air guide duct through the ventilation pipe, thereby forming an internal air extraction operation of the distribution cabinet, reducing the oxygen content inside the distribution cabinet, and then forming a fire extinguishing operation. It not only has good ventilation and heat dissipation functions and improves the service life of the distribution cabinet, but also has good fire extinguishing protection functions, thereby improving the functionality of the distribution cabinet. The gas fire extinguishing component is set to inject carbon dioxide gas into the interior of the cabinet, thereby further improving the internal fire extinguishing protection function of the distribution cabinet.

[0021] 2. The present invention is used to pressurize and store carbon dioxide gas through the provision of a pressure tank in a gas fire extinguishing assembly, and is used to pressurize and inject carbon dioxide gas into the interior of the pressure tank through the provision of an injection pipe to facilitate subsequent carbon dioxide fire extinguishing work, and is used to discharge the carbon dioxide gas inside the pressure tank into an air duct through the provision of an output pipe, and release it to the interior of the cabinet through the air duct, so that the interior of the cabinet is filled with carbon dioxide gas, thereby further improving its fire extinguishing performance, having multiple fire extinguishing processing functions, and improving the protection function of the distribution cabinet.

[0022] 3. When the gas fire extinguishing assembly of the present invention is injecting carbon dioxide gas, its piston column has formed a driving operation. When the piston column is driven, it can drive the U-shaped connecting frame to move to the depth of the cabinet through the control shaft, and then drive the two T-shaped cover plates to move synchronously, and then the exhaust ports of the two one-way exhaust assemblies can be sealed and blocked, thereby ensuring the stability of the carbon dioxide gas filling the interior of the cabinet, further improving the carbon dioxide fire extinguishing effect, and avoiding the problem of the carbon dioxide gas inside the cabinet being directly discharged through the exhaust port when the carbon dioxide gas is injected. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural schematic diagram of the power engineering distribution cabinet of the present invention;

[0024] Figure 2 For the present invention Figure 1 The rear view of the structure of the power distribution cabinet in the power engineering project;

[0025] Figure 3 For the present invention Figure 1 A cross-sectional side view of the middle cabinet;

[0026] Figure 4 For the present invention Figure 3 Schematic diagram of the connection between the intermediate conversion assembly, the gas fire extinguishing assembly and the air duct;

[0027] Figure 5 For the present invention Figure 4 Schematic diagram of the connection between the gas fire extinguishing assembly and the air duct;

[0028] Figure 6 For the present invention Figure 3 A partial cross-sectional view of the middle air duct;

[0029] Figure 7 For the present invention Figure 6 A partial enlarged view of the middle A;

[0030] Figure 8 For the present invention Figure 4 Schematic diagram of the connection between the middle conversion assembly and the air guide duct;

[0031] Fig. 9 For the present invention Figure 8 Schematic diagram of the structure of the conversion component;

[0032] Fig.10 For the present invention Fig. 9 Cross-sectional top view.

[0033] In the figure: 1. cabinet body; 2. cabinet door; 3. mounting beam; 4. sensor group;

[0034] 5. air guide duct; 51. air guide duct; 52. branch pipe; 53. cylindrical tube;

[0035] 6. Conversion assembly; 61. T-type exhaust pipe; 62. T-type exhaust pipe; 63. Piston cylinder; 64. Connecting pipe; 65. Blocking block;

[0036] 66, driving member; 661, tilting frame; 662, hinged seat; 663, driving shaft; 664, movable shaft; 665, rotating sleeve; 666, electric telescopic rod;

[0037] 7. Control tank; 8. Filter plate; 9. Air pump;

[0038] 10. One-way exhaust assembly; 101. Grid frame; 102. Exhaust duct; 103. T-shaped cover plate; 104. U-shaped connecting frame;

[0039] 11. Gas fire extinguishing assembly; 111. Pressure tank; 112. Output pipe; 113. Piston rod; 114. Control shaft. DETAILED DESCRIPTION

[0040] 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.

[0041] Embodiment 1:

[0042] Refer to the attached Figure 1-10 , an electric power engineering distribution cabinet, comprising a cabinet body 1 and a cabinet door 2 arranged on the front of the cabinet body 1, a sealing strip is arranged on the inner side of the cabinet door 2, a mounting beam 3 for installing a distribution element is fixedly connected to the inside of the cabinet body 1, a sensor group 4 is installed inside the cabinet body 1, a control slot 7 is opened on the top of the cabinet body 1, and an air guide frame connected to the inside of the control slot 7 is opened on the back of the cabinet body 1, and a filter plate 8 is detachably installed inside the air guide frame, an air guide duct 5 is fixedly installed inside the cabinet body 1, and one-way exhaust components 10 are arranged on both sides of the cabinet body 1;

[0043] The sensor group 4 is used to detect the internal conditions of the power distribution cabinet, including but not limited to temperature sensors, flame sensors, etc., for detecting the temperature inside the power distribution cabinet, so as to facilitate timely cooling and fire extinguishing;

[0044] The filter plate 8 is used to filter the gas entering the power distribution cabinet, reduce the dust in the gas, and prevent the dust in the gas from adhering to the electrical components. The one-way exhaust assembly 10 is used to guide the heat flow inside the power distribution cabinet to further improve its cooling and heat dissipation effect.

[0045] An air pump 9 is fixedly connected to the top of the inner wall of the control groove 7, and the air outlet and the air suction port of the air pump 9 are connected to the air guide duct 5 through a ventilation pipe, and a conversion component 6 for converting the air outlet and the air suction port of the air pump 9 is installed on the ventilation pipe. A gas fire extinguishing component 11 for injecting carbon dioxide gas into the air guide duct 5 is arranged inside the control groove 7;

[0046] The air pump 9 is connected to an external power source and a control switch, and is used to inject air into the air guide duct 5 through the ventilation pipe to form a heat dissipation inside the power distribution cabinet;

[0047] The conversion assembly 6 is provided to convert and adjust the air suction port and the air exhaust port of the air pump 9, so that when the air pump 9 is working, it can extract air from the inside of the air guide duct 5 through the ventilation pipe, thereby forming an internal air extraction work of the power distribution cabinet, reducing the oxygen content inside the power distribution cabinet, and then forming a fire extinguishing work. It not only has good ventilation and heat dissipation functions, and improves the service life of the power distribution cabinet, but also has good fire extinguishing protection functions, thereby improving the functionality of the power distribution cabinet;

[0048] The gas fire extinguishing assembly 11 is provided to inject carbon dioxide gas into the interior of the cabinet 1, thereby further improving the fire extinguishing protection function inside the power distribution cabinet;

[0049] The air duct 5 includes an air duct 51 fixed inside the cabinet 1, and the outer surface of the air duct 51 is fixedly connected to a plurality of branch pipes 52, and the outer surfaces of the plurality of branch pipes 52 are each provided with an exhaust port, and the top of the air duct 51 is fixedly connected to a cylindrical tube 53;

[0050] The air guide pipe 51 is provided to discharge the gas inside the cylindrical tube 53 to a plurality of branch pipes 52 and then to be led out through a plurality of groups of air ports, thereby further improving the heat dissipation performance.

[0051] Refer to the attached Figure 5 , Figure 6 and Figures 8 to 10 The conversion assembly 6 includes a T-shaped suction pipe 61 and a T-shaped exhaust pipe 62 fixedly connected to the suction port and the exhaust port of the air pump 9, and two piston cylinders 63 are fixedly connected between the two ends of the T-shaped suction pipe 61 and the T-shaped exhaust pipe 62. The middle parts of the two piston cylinders 63 are fixedly connected with a connecting pipe 64, and one end of one of the connecting pipes 64 is fixedly connected to one end of the cylindrical cylinder 53;

[0052] A T-shaped suction pipe 61 and a T-shaped exhaust pipe 62 are fixedly connected through the suction port and the exhaust port of the air pump 9, so that when the air pump 9 is started, the gas inside the control tank 7 or the gas inside the cabinet 1 can be extracted through the T-shaped suction pipe 61, and the extracted gas can be discharged to the inside of the cabinet 1 or the inside of the control tank 7 through the T-shaped exhaust pipe 62, which has a good gas conversion function;

[0053] The two piston cylinders 63 are provided with blocking blocks 65 for blocking the ports of the T-shaped suction pipe 61 and the T-shaped exhaust pipe 62, respectively. The control groove 7 is provided with a driving member 66 for alternately driving the two blocking blocks 65.

[0054] The two blocking blocks 65 respectively block one end of the T-shaped exhaust pipe 61 and the T-shaped exhaust pipe 62, so that the T-shaped exhaust pipe 61 can perform exhaust work through one piston cylinder 63 and the connecting pipe 64, and the sucked gas can be discharged to the air guide duct 5 through the other piston cylinder 63 and the connecting pipe 64 through the T-shaped exhaust pipe 62, thereby forming an air supply and heat dissipation work;

[0055] On the contrary, by alternately switching the positions of the two blocking blocks 65 through the driving member 66, when the air pump 9 is started, the other end of the T-shaped exhaust pipe 61 can exhaust the air duct 5 through one of the piston cylinders 63 and the connecting pipe 64, thereby forming an exhaust operation inside the cabinet 1, and the sucked gas is discharged to the control groove 7 through the other piston cylinder 63 and the connecting pipe 64 through the T-shaped exhaust pipe 62, thereby forming an outlet operation.

[0056] Refer to the attached Fig.10 The driving member 66 includes a tilting frame 661 rotatably connected to the inside of the control slot 7 through a rotating shaft, one side of the tilting frame 661 is slidably connected to two hinged seats 662, the insides of the two hinged seats 662 are both hinged with driving shafts 663, and one end of the two driving shafts 663 is fixedly connected to the two blocking blocks 65 respectively;

[0057] By the tilting frame 661 moving in a fan shape with the rotating shaft as the center, the two driving shafts 663 can be driven alternately by the two hinged seats 662, and the positions of the two blocking blocks 65 can be adjusted alternately through the alternating movement of the two driving shafts 663, so as to meet the requirements of the two blocking blocks 65 to seal and block one end or the other end of the T-shaped suction pipe 61 and the T-shaped exhaust pipe 62, thereby improving the conversion of the suction and exhaust positions of the air pump 9, and then facilitating the gas injection into the interior of the cabinet 1 through the air pump 9 to form the internal heat dissipation of the cabinet 1, and facilitating the extraction of oxygen from the interior of the cabinet 1 through the air pump 9 to reduce the oxygen content inside the cabinet 1 and form a fire extinguishing operation.

[0058] Refer to the attached Fig.10A movable shaft 664 is fixedly connected to one side of the bottom of the tilting frame 661, and the outer surface of the movable shaft 664 is rotatably connected to a rotating sleeve 665. The bottom of the inner wall of the control groove 7 is rotatably connected to an electric telescopic rod 666 through a rotating shaft, and the telescopic end of the electric telescopic rod 666 is fixedly connected to the rotating sleeve 665.

[0059] The electric telescopic rod 666 is connected to an external power supply and a control switch, and is used to drive the rotating sleeve 665 to push. The movement of the rotating sleeve 665 can drive the tilting frame 661 to move in a fan shape with the rotating shaft as the center through the movable shaft 664, forming an alternating adjustment operation of the two blocking blocks 65, thereby improving the convenience of its operation.

[0060] Embodiment 2: Based on embodiment 1, the difference is that;

[0061] Refer to the attached Figures 5 to 7 The gas fire extinguishing assembly 11 includes a pressure tank 111 fixed inside the control tank 7, an injection pipe for injecting carbon dioxide gas into the pressure tank 111 is fixedly connected to the top of the cabinet 1, and a valve is installed on the injection pipe. The pressure tank 111 is fixedly connected to the other end of the cylindrical tube 53 through the output pipe 112, and a control member for controlling the output pipe 112 is arranged inside the cylindrical tube 53;

[0062] The pressure tank 111 is provided to store the carbon dioxide gas under pressure, and the injection pipe is provided to inject the carbon dioxide gas into the interior of the pressure tank 111 under pressure to facilitate the subsequent carbon dioxide fire extinguishing work. The output pipe 112 is provided to discharge the carbon dioxide gas in the pressure tank 111 to the air duct 5, and release it to the interior of the cabinet 1 through the air duct 5, so that the interior of the cabinet 1 is filled with carbon dioxide gas, thereby further improving its fire extinguishing performance. The cabinet has multiple fire extinguishing processing functions, which improves the protection function of the distribution cabinet.

[0063] The control member includes a piston column 113 slidably connected to the inside of the cylindrical tube 53 through a sealing sleeve. The piston column 113 is used to seal and block the output port of the output tube 112. The end of the piston column 113 is fixedly connected to a control shaft 114, and one end of the control shaft 114 extends to the outside of the cylindrical tube 53.

[0064] Refer to the attached Figure 7It can be understood that after the piston rod 113 seals and blocks the output pipe 112, it slightly extends a certain distance, so that when the air pump 9 is used to evacuate the air to the limit position, the piston rod 113 can be driven to move slightly, so that the output pipe 112 can be partially connected with the inside of the cylindrical tube 53. With the pressure of the carbon dioxide gas in the pressure tank 111, the piston rod 113 can be pushed, so that the piston rod 113 moves from the other end to one end of the cylindrical tube 53, which not only forms a blockage for the connecting pipe 64, but also allows the released carbon dioxide gas to enter the interior of the cabinet 1 through the air guide duct 5, forming a carbon dioxide fire extinguishing operation;

[0065] The piston column 113 is provided to seal and shield the output port of the output pipe 112, thereby ensuring the stability of the carbon dioxide gas inside the pressure tank 111. When the air inside the cabinet 1 is evacuated to the limit position by the air pump 9, the piston column 113 can be driven to move slightly, and then the carbon dioxide gas inside the pressure tank 111 can be released through the output pipe 112, thereby performing a carbon dioxide gas fire extinguishing operation.

[0066] Embodiment 3: Based on embodiment 2, the difference is that;

[0067] Refer to the attached Fig.10 The one-way exhaust assembly 10 includes a grid frame 101 fixed to the side of the cabinet 1 and an exhaust pipe 102 fixedly connected to the inner side of the cabinet 1, and one end of the exhaust pipe 102 is connected to the inside of the grid frame 101, and a one-way valve is installed on the exhaust pipe 102;

[0068] The exhaust pipe 102 is provided to discharge the gas after the heat dissipation inside the cabinet 1 into the grid frame 101, and is guided out through the grid frame 101, thereby improving the gas circulation effect and increasing the heat dissipation performance inside the cabinet 1;

[0069] The one-way valve is provided to perform one-way control on the exhaust pipe 102 to prevent untreated external gas from directly entering the interior of the cabinet 1 through the grid frame 101 and causing contamination of internal components.

[0070] Both sides of the inner wall of the cabinet 1 are slidably connected with T-shaped cover plates 103 for shielding the exhaust port of the exhaust pipe 102, and a U-shaped connecting frame 104 is fixedly connected between the tops of the two T-shaped cover plates 103, and the U-shaped connecting frame 104 is fixedly connected to one end of the control shaft 114;

[0071] When the gas fire extinguishing component 11 is injecting carbon dioxide gas, its piston column 113 has formed a driving operation. When the piston column 113 is driven, it can drive the U-shaped connecting frame 104 to move deeper into the cabinet 1 through the control shaft 114, and then drive the two T-shaped cover plates 103 to move synchronously, and then the exhaust ports of the two one-way exhaust components 10 can be sealed and blocked. It has the function of automatic sealing processing, thereby ensuring the stability of the carbon dioxide gas filling the interior of the cabinet 1, further improving the carbon dioxide fire extinguishing effect, and avoiding the problem of the carbon dioxide gas inside the cabinet 1 being directly discharged through the exhaust port when the carbon dioxide gas is injected.

[0072] It should be noted that the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article, or device that includes a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article, or device that includes the element.

[0073] 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 power distribution cabinet for electric power engineering, comprising a cabinet body (1) and a cabinet door (2) arranged on the front of the cabinet body (1), a sensor group (4) is installed inside the cabinet body (1), a control slot (7) is opened on the top of the cabinet body (1), and an air guide frame communicating with the inside of the control slot (7) is opened on the back of the cabinet body (1), and a filter plate (8) is detachably installed inside the air guide frame, characterized in that: An air guide duct (5) is fixedly installed inside the cabinet (1), and one-way exhaust components (10) are arranged on both sides of the cabinet (1); An air pump (9) is fixedly connected to the top of the inner wall of the control groove (7), and the air outlet and the air suction port of the air pump (9) are connected to the air guide duct (5) through a ventilation pipe, and a conversion component (6) for converting the air outlet and the air suction port of the air pump (9) is installed on the ventilation pipe, and a gas fire extinguishing component (11) for injecting carbon dioxide gas into the air guide duct (5) is arranged inside the control groove (7); The air guide duct (5) comprises an air guide pipe (51) fixed inside the cabinet (1), and the top end of the air guide pipe (51) is fixedly connected to a cylindrical tube (53).

2. The power engineering distribution cabinet according to claim 1, characterized in that: The conversion assembly (6) comprises a T-shaped suction pipe (61) and a T-shaped exhaust pipe (62) which are fixedly connected to the suction port and exhaust port of the air pump (9); two piston cylinders (63) are fixedly connected between the two ends of the T-shaped suction pipe (61) and the T-shaped exhaust pipe (62); the middle parts of the two piston cylinders (63) are fixedly connected to a connecting pipe (64); one end of one of the connecting pipes (64) is fixedly connected to one end of the cylindrical cylinder (53); The two piston cylinders (63) are respectively provided with blocking blocks (65) for blocking the ports of the T-shaped suction pipe (61) and the T-shaped exhaust pipe (62), and the control groove (7) is provided with a driving member (66) for alternately driving the two blocking blocks (65).

3. The power engineering distribution cabinet according to claim 2, characterized in that: The driving member (66) comprises a tilting frame (661) rotatably connected to the inside of the control groove (7) via a rotating shaft, one side of the tilting frame (661) is slidably connected to two hinged seats (662), the insides of the two hinged seats (662) are both hingedly connected with driving shafts (663), and one end of the two driving shafts (663) is fixedly connected to the two blocking blocks (65) respectively.

4. The power engineering distribution cabinet according to claim 3, characterized in that: A movable shaft (664) is fixedly connected to one side of the bottom of the tilting frame (661), and a rotating sleeve (665) is rotatably connected to the outer surface of the movable shaft (664). An electric telescopic rod (666) is rotatably connected to the bottom of the inner wall of the control groove (7) via a rotating shaft, and the telescopic end of the electric telescopic rod (666) is fixedly connected to the rotating sleeve (665).

5. The power engineering distribution cabinet according to claim 1, characterized in that: The gas fire extinguishing assembly (11) comprises a pressure tank (111) fixed inside a control tank (7); an injection pipe for injecting carbon dioxide gas into the pressure tank (111) is fixedly connected to the top of the cabinet (1), and a valve is installed on the injection pipe; the pressure tank (111) is fixedly connected to the other end of the cylindrical tube (53) through an output pipe (112); and a control component for controlling the output pipe (112) is arranged inside the cylindrical tube (53).

6. The power engineering distribution cabinet according to claim 5, characterized in that: The control component comprises a piston column (113) slidably connected to the inside of the cylindrical tube (53) via a sealing sleeve, and the piston column (113) is used to seal and block the output port of the output tube (112). The end of the piston column (113) is fixedly connected to a control shaft (114), and one end of the control shaft (114) extends to the outside of the cylindrical tube (53).

7. The power engineering distribution cabinet according to claim 6, characterized in that: The one-way exhaust assembly (10) comprises a grid frame (101) fixed to the side of the cabinet (1) and an exhaust pipe (102) fixedly connected to the inner side of the cabinet (1), and one end of the exhaust pipe (102) is connected to the interior of the grid frame (101), and a one-way valve is installed on the exhaust pipe (102).

8. The power engineering distribution cabinet according to claim 7, characterized in that: T-shaped cover plates (103) for shielding the exhaust port of the exhaust pipe (102) are slidably connected to both sides of the inner wall of the cabinet (1), a U-shaped connecting frame (104) is fixedly connected between the tops of the two T-shaped cover plates (103), and the U-shaped connecting frame (104) is fixedly connected to one end of the control shaft (114).

Images