Real-time monitoring device for running state of medium and low voltage switch cabinet

Abstract

The invention relates to the technical field of medium and low voltage switch cabinet monitoring, in particular to a medium and low voltage switch cabinet running state real-time monitoring device which comprises a switch cabinet body, the front side face of the switch cabinet body is in an opening shape, a cabinet door is hinged to the opening of the switch cabinet body through hinges, and the inner side face of the cabinet door is fixedly connected with a lifting supporting seat and a connecting seat. A lifting transmission mechanism is installed on the lifting supporting seat, a monitoring camera device and an air suction connector are installed on the lifting transmission mechanism, and one end of the air suction connector is fixedly connected with a monitoring pipeline. At the moment, the air suction connector pumps away heat dissipated by components in the switch cabinet body; and meanwhile, the lifting transmission mechanism operates to drive the monitoring camera device and the air suction joint to reciprocate up and down, so that the monitoring camera device can comprehensively monitor the interior of the switch cabinet body.

Description

Technical Field

[0001] The present invention relates to the technical field of medium and low voltage switch cabinet monitoring, and in particular to a device for real-time monitoring of the operating status of a medium and low voltage switch cabinet. Background Art

[0002] Switchgear is an electrical equipment. The external line of the switchgear first enters the main control switch inside the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. The main function of the switchgear is to open and close, control and protect electrical equipment in the process of power generation, transmission, distribution and power conversion in the power system. There are many ways to classify switchgear. For example, it can be divided into removable switchgear and fixed switchgear according to the installation method of the circuit breaker; or according to the different cabinet structures, it can be divided into open switchgear, metal-enclosed switchgear, and metal-enclosed armored switchgear; according to different voltage levels, it can be divided into high-voltage switchgear, medium-voltage switchgear and low-voltage switchgear.

[0003] Traditional medium and low voltage switchgear usually only provides basic switching and protection functions, making it difficult to achieve comprehensive monitoring and intelligent management of power systems. Some switchgear systems have introduced monitoring devices, but these devices are often limited to a single function and have poor monitoring capabilities; they are unable to provide good relief in emergencies, especially when fires occur inside switchgear or equipment cabinets. Once the detector detects the fire source, it will directly perform large-scale fire extinguishing operations in the machine room, which will cause other non-fired equipment to be disturbed or damaged, resulting in unnecessary losses. Summary of the invention

[0004] The purpose of the present invention is to provide a real-time monitoring device for the operating status of a medium- and low-voltage switch cabinet to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a real-time monitoring device for the operation status of a medium and low voltage switch cabinet, comprising a switch cabinet body, the front side surface of the switch cabinet body being open, a cabinet door being hinged at the opening of the switch cabinet body by a hinge, a lifting support seat and a connecting seat being fixedly connected to the inner side surface of the cabinet door, a lifting transmission mechanism being installed on the lifting support seat, a monitoring camera device and an air suction joint being installed on the upper side of the lifting transmission mechanism, a monitoring pipe being fixedly connected to one end of the air suction joint, a temperature sensor and a smoke alarm being fixedly installed symmetrically on the side surface of the monitoring pipe, a lifting hose being fixedly installed at one end of the monitoring pipe away from the air suction joint, and an end of the lifting hose away from the monitoring pipe being fixedly plugged into the side surface of the connecting seat, a lifting groove being provided on the inner side of the connecting seat, an external hose being fixedly plugged into one side of the connecting seat away from the lifting hose, one end of the external hose passing through the side wall of the switch cabinet body and connected to one end of a three-way joint by a pipe joint, the other two ends of the three-way joint being connected to a blower and an exhauster by connecting pipes respectively, and control valves being installed at the connection points between the two ends of the three-way joint and the connecting pipe.

[0006] As a further solution of the present invention, a through groove is provided on the side of the lifting support seat, and T-shaped grooves are symmetrically provided on the side of the lifting support seat on both sides of the through groove, and the T-shaped grooves are distributed from top to bottom; The lifting transmission mechanism includes a reciprocating screw rotatably connected in a through slot, a lifting slider is sleeved on the reciprocating screw, a lifting platform is fixedly installed on the side of the lifting slider, and a T-shaped slider is symmetrically fixedly connected to one side of the lifting platform.

[0007] As a further solution of the present invention, the reciprocating screw is driven by a motor shaft of a stepping motor fixedly mounted on the lower end of the lifting support seat, and the reciprocating screw is threadedly connected to the lifting slider.

[0008] As a further solution of the present invention, the T-shaped slider matches the T-shaped slot, and the two T-shaped sliders are symmetrically distributed on both sides of the lifting slider, and the T-shaped slider is connected to the T-shaped slot by sliding up and down.

[0009] As a further scheme of the present invention, a fire extinguishing mechanism is installed in the lifting groove on the inner side of the connecting seat, and the fire extinguishing mechanism includes an electric telescopic rod fixedly installed on the upper end of the connecting seat, the lower end of the electric telescopic rod extends downward into the lifting groove and is fixedly connected to the upper end of the storage tank, the inner cavity of the storage tank is filled with dry powder fire extinguishing agent, and a ventilation seat is fixedly installed at the lower end of the storage tank, a circular groove is provided on the inner side of the ventilation seat, a feeding port is provided at the upper end of the circular groove penetrating upward, ventilation holes are symmetrically provided on the inner side of the ventilation seat, and a rotating material guiding mechanism is installed in the storage tank.

[0010] As a further solution of the present invention, the lower end of the storage tank is inserted into the discharge port, and the vent seat is slidably connected to the inner wall of the lifting groove up and down.

[0011] As a further solution of the present invention, the lower end of the material storage tank is open, the lower end of the inner cavity of the material storage tank is conical, and the inner cavity of the material storage tank is connected to the inner cavity of the circular groove.

[0012] As a further solution of the present invention, the rotating material guiding mechanism includes a rotating shaft rotatably connected to the inner cavity of the storage tank, the rotating shaft is rotatably connected to the upper end of the inner cavity of the storage tank, the lower end of the rotating shaft extends downward into the circular groove, a spiral plate is fixedly sleeved on the rotating shaft, and a plurality of blades are fixedly connected to the lower end of the rotating shaft in a circular array.

[0013] As a further solution of the present invention, the spiral plate is distributed at the lower end of the inner cavity of the storage tank, and the blade plate is arranged in the circular groove.

[0014] The beneficial effects of the present invention are: 1. When the switch cabinet body is in normal use, start the vacuum pump, and the air suction joint will extract the heat emitted by the components inside the switch cabinet body; at the same time, the operation of the lifting transmission mechanism drives the monitoring camera device and the air suction joint to move up and down, so that the monitoring camera device can comprehensively monitor the inside of the switch cabinet body; when the air suction joint moves up and down, it can fully dissipate the heat of the components inside the switch cabinet body; when heat flows through the monitoring pipe, it is detected by the temperature sensor set at the upper end of the monitoring pipe, so as to monitor the temperature inside the switch cabinet body in real time, and can dissipate heat well while monitoring the temperature inside the switch cabinet body.

[0015] 2. When a fire occurs inside the switch cabinet body, the smoke will be sucked away by the air intake joint, and the smoke will flow through the monitoring pipe, thereby triggering the smoke alarm. The smoke alarm sends the fire situation to the controller, and the controller controls the inner rod of the electric telescopic rod to extend downward, so that the fire extinguishing mechanism moves downward, and the air blower introduces wind into the connecting pipe. At the same time, the wind drives the rotating material guide mechanism to rotate, so that the dry powder fire extinguishing agent in the storage tank is sent downward to the circular groove. At this time, the wind will drive the dry powder fire extinguishing agent to flow at the same time when it flows through the circular groove, so that the dry powder fire extinguishing agent is sprayed out from the air intake joint with the wind, so that the dry powder fire extinguishing agent is sprayed into the switch cabinet body for fire extinguishing operations; at the same time, the air intake joint is driven up and down by the lifting transmission mechanism, so that the dry powder fire extinguishing agent can be well sprayed into the switch cabinet body, so that the dry powder can be directly sprayed at the fire source for good fire extinguishing, and can also be sprayed on other components to play a flame retardant role and prevent the fire from further expanding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a structural stereogram of the real-time monitoring device for the operation status of a medium- and low-voltage switchgear according to the present invention; Figure 2 It is a structural cross-sectional view of the real-time monitoring device for the operation status of a medium- and low-voltage switch cabinet of the present invention; Figure 3 It is a partial cross-sectional view of the real-time monitoring device for the operation status of a medium- and low-voltage switch cabinet of the present invention; Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle; Figure 5 for Figure 3 A magnified schematic diagram of the structure at B in the middle; Figure 6 This is a cross-sectional view of the lifting support structure of the present invention; Figure 7 It is an exploded view of the lifting support seat, lifting transmission mechanism, monitoring camera device and air suction joint structure of the present invention; Figure 8 It is an exploded view of the connecting seat and the fire extinguishing mechanism structure of the present invention.

[0017] In the figure: 1. switch cabinet body; 11. cabinet door; 2. lifting support seat; 21. through slot; 22. T-slot; 3. reciprocating screw; 31. lifting slider; 32. lifting platform; 33. T-slot; 4. monitoring camera device; 5. suction joint; 51. monitoring pipeline; 52. temperature sensor; 53. lifting hose; 54. smoke alarm; 6. connecting seat; 61. lifting slot; 62. external hose; 7. three-way joint; 71. control valve; 72. blower; 73. vacuum pump; 8. electric telescopic rod; 81. storage tank; 82. ventilation seat; 83. circular slot; 84. discharge port; 85. vent; 9. rotating shaft; 91. spiral plate; 92. blade plate. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figures 1 to 8The present invention provides a technical solution: a real-time monitoring device for the operation status of a medium and low voltage switch cabinet, comprising a switch cabinet body 1, the front side of the switch cabinet body 1 is in an open shape, a cabinet door 11 is hinged at the opening of the switch cabinet body 1 through a hinge, a lifting support seat 2 and a connecting seat 6 are fixedly connected to the inner side of the cabinet door 11, a lifting transmission mechanism is installed on the lifting support seat 2, a monitoring camera device 4 and an air suction connector 5 are installed on the lifting transmission mechanism, one end of the air suction connector 5 is fixedly connected to a monitoring pipe 51, a temperature sensor 52 and a smoke alarm 54 are fixedly installed on the side of the monitoring pipe 51 symmetrically from top to bottom, the lower end of the temperature sensor 52 extends downward to the inner cavity of the monitoring pipe 51, the detection head of the smoke alarm 54 extends upward to the inner cavity of the monitoring pipe 51, and a lifting hose 53 is fixedly installed on the end of the monitoring pipe 51 away from the air suction connector 5. The lifting hose 53 is fixedly connected to one end of the monitoring pipe 51 by means of a thread, and the lifting hose 53 is connected to the suction joint 5 through the set monitoring pipe 51. The end of the lifting hose 53 away from the monitoring pipe 51 is fixedly plugged into the side of the connecting seat 6. A lifting groove 61 is provided on the inner side of the connecting seat 6. An external hose 62 is fixedly plugged into the side of the connecting seat 6 away from the lifting hose 53. One end of the lifting hose 53 and the external hose 62 are both inserted into the interior of the connecting seat 6, and the lifting hose 53 and the external hose 62 are both connected to the inner cavity of the lifting groove 61. One end of the external hose 62 passes through the side wall of the switch cabinet body 1 and is connected to one end of the three-way joint 7 through a pipe joint. The other two ends of the three-way joint 7 are respectively connected to a blower 72 and an exhauster 73 through connecting pipes. Control valves 71 are installed at the connection between the two ends of the three-way joint 7 and the connecting pipe.

[0020] A filter is installed at the upper end of the switch cabinet body 1, and one end of the external hose 62 inside the switch cabinet body 1 is bent so that the cabinet door 11 on the side of the switch cabinet body 1 can be opened and closed normally, and the external hose 62 can transmit air normally.

[0021] See also Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7 A through slot 21 is provided on the side of the lifting support seat 2, and T-slots 22 are symmetrically provided on both sides of the through slot 21 on the side of the lifting support seat 2, and the T-slots 22 are distributed from top to bottom; The lifting transmission mechanism includes a reciprocating screw 3 rotatably connected in the through slot 21 , a lifting slider 31 is sleeved on the reciprocating screw 3 , a lifting platform 32 is fixedly installed on the side of the lifting slider 31 , and a T-shaped slider 33 is symmetrically fixedly connected to one side of the lifting platform 32 .

[0022] The reciprocating screw 3 is driven by the motor shaft of the stepper motor fixedly installed at the lower end of the lifting support seat 2, and the reciprocating screw 3 is threadedly connected to the lifting slider 31; the reciprocating screw 3 is driven to rotate by the motor shaft of the stepper motor, and when the reciprocating screw 3 rotates, the lifting slider 31 moves back and forth up and down.

[0023] The T-shaped slider 33 matches the T-shaped slot 22, and the two T-shaped sliders 33 are symmetrically distributed on both sides of the lifting slider 31, and the T-shaped slider 33 is connected to the T-shaped slot 22 for sliding up and down. When the lifting slider 31 moves up and down, it drives the lifting platform 32 to move up and down, and when the lifting platform 32 moves up and down, it drives the T-shaped slider 33 to slide up and down along the T-shaped slot 22, so that the lifting platform 32 can move up and down stably.

[0024] The lifting platform 32 reciprocates up and down while driving the monitoring camera device 4 and the air suction joint 5 to reciprocate up and down, so that the monitoring camera device 4 can comprehensively monitor the inside of the switch cabinet body 1; When the air intake connector 5 moves up and down, one end of the lifting hose 53 is driven to move up and down through the monitoring pipe 51. The lifting hose 53 will not hinder the up and down movement of the air intake connector 5. The monitoring pipe 51 is connected to the inner side of the lifting slot 61 of the connecting seat 6 through the lifting hose 53.

[0025] The vacuum pump 73 performs the vacuum operation, and the air blower 72 is turned off. At this time, the air suction joint 5 extracts the heat emitted by the components inside the switch cabinet body 1. The heat flows through the air suction joint 5 through the monitoring pipeline 51, the lifting hose 53, the connecting seat 6, the external hose 62, the three-way joint 7, and the connecting pipe, and is finally extracted by the vacuum pump 73; At the same time, the suction connector 5 is driven to move up and down by the lifting transmission mechanism, so that the components inside the switch cabinet body 1 can be well cooled; When heat flows through the monitoring pipe 51 , it is detected by the temperature sensor 52 disposed at the upper end of the monitoring pipe 51 , thereby monitoring the temperature inside the switch cabinet body 1 in real time.

[0026] See also Figures 3 to 5 , Figure 8A fire extinguishing mechanism is installed in the lifting groove 61 inside the connecting seat 6, and the fire extinguishing mechanism includes an electric telescopic rod 8 fixedly installed on the upper end of the connecting seat 6, and the lower end of the electric telescopic rod 8 extends downward into the lifting groove 61 and is fixedly connected to the upper end of the storage tank 81. The inner cavity of the storage tank 81 is filled with dry powder fire extinguishing agent, and a vent seat 82 is fixedly installed at the lower end of the storage tank 81. A circular groove 83 is provided on the inner side of the vent seat 82, and a discharge port 84 is provided through the upper end of the circular groove 83. Ventilation holes 85 are symmetrically provided on the inner side of the vent seat 82, and the vent holes 85 penetrate the left and right side walls of the vent seat 82. When the vent seat 82 moves downward to the bottom of the lifting groove 61, one end of the lifting hose 53 and one end of the external hose 62 are respectively connected to the two vent holes 85; When fire extinguishing operation is not needed, the piston rod of the electric telescopic rod 8 is in a retracted state, that is, the vent seat 82 does not contact the bottom of the lifting groove 61, and the vent holes 85 on both sides of the vent seat 82 contact the inner wall of the lifting groove 61, thereby forming a seal for the vent holes 85 on both sides of the vent seat 82 to prevent the dry powder fire extinguishing agent from falling; a rotating material guiding mechanism is installed in the storage tank 81.

[0027] When the equipment operates normally and no fire occurs, the heat dissipation airflow passes through the bottom of the lifting slot 62 , that is, flows under the ventilation seat 82 , and does not flow through the ventilation seat 82 .

[0028] The lower end of the material storage tank 81 is inserted into the material discharge port 84 , and the vent seat 82 is slidably connected to the inner wall of the lifting groove 61 up and down.

[0029] The lower end of the material storage tank 81 is open, and the lower end of the inner cavity of the material storage tank 81 is conical. The inner cavity of the material storage tank 81 is connected with the inner cavity of the circular groove 83 to facilitate the dry powder fire extinguishing agent to fall downward.

[0030] The rotating material guiding mechanism includes a rotating shaft 9 rotatably connected to the inner cavity of the storage tank 81. The rotating shaft 9 is rotatably connected to the upper end of the inner cavity of the storage tank 81. The lower end of the rotating shaft 9 extends downward into the circular groove 83. The lower end of the rotating shaft 9 is rotatably connected to the bottom of the circular groove 83. A spiral plate 91 is fixedly sleeved on the rotating shaft 9, and a plurality of blades 92 are fixedly connected to the lower end of the rotating shaft 9 in a circular array.

[0031] The spiral plate 91 is distributed at the lower end of the inner cavity of the storage tank 81 , and the blade plate 92 is arranged in the circular groove 83 .

[0032] A controller is installed on the side of the switch cabinet body 1 or in the machine room. The controller is electrically connected to the stepper motor, the monitoring camera device 4, the temperature sensor 52, the smoke alarm 54, the air blower 72, the air extractor 73, and the electric telescopic rod 8. The controller can directly control the start and stop of the stepper motor, the air blower 72, the air extractor 73, and the electric telescopic rod 8. The situation inside the switch cabinet body 1 is transmitted to the controller in real time through the monitoring camera device 4. At the same time, the temperature sensor 52 and the smoke alarm 54 can monitor the situation inside the switch cabinet body 1 in real time.

[0033] When a fire occurs inside the switch cabinet body 1, smoke will be sucked away by the suction joint 5, and the smoke will flow through the monitoring pipe 51, thereby triggering the smoke alarm 54, and the smoke alarm 54 sends the fire situation to the controller, and the controller controls the inner rod of the electric telescopic rod 8 to extend downward; Make the material storage tank 81 and the vent seat 82 slide down along the lifting groove 61 to the bottom thereof, make the lifting hose 53 and the external hose 62 communicate with the two vent holes 85 on both sides of the vent seat 82 respectively, and at the same time stop the vacuum machine 73 and start the air blower 72; The blower 72 introduces air into the connecting pipe, and the air is blown into the circular groove 83 of the vent seat 82 along the three-way connector 7, the external hose 62, and the vent hole 85, and then flows out along the vent hole 85 on the other side of the circular groove 83, passes through the lifting hose 53, the monitoring pipe 51 and the suction connector 5, and finally blown out along the open end of the suction connector 5; When the wind blows through the circular groove 83, the dry powder fire extinguishing agent in the inner cavity of the storage tank 81 falls downward into the circular groove 83. At the same time, the wind drives the blade 92 to rotate, the blade 92 drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives the spiral plate 91 to rotate, and the dry powder fire extinguishing agent in the storage tank 81 is sent downward into the circular groove 83 through the spiral plate 91, and at the same time, the dry powder fire extinguishing agent is prevented from accumulating at the opening at the lower end of the storage tank 81, so as to ensure that the dry powder fire extinguishing agent can continue to fall into the circular groove 83; At this time, when the wind flows through the circular groove 83, it will drive the dry powder fire extinguishing agent to flow at the same time, so that the dry powder fire extinguishing agent is sprayed out from the air intake joint 5 along with the wind, thereby spraying the dry powder fire extinguishing agent into the switch cabinet body 1 to perform fire extinguishing operations; At the same time, the suction joint 5 is driven to move up and down through the lifting transmission mechanism, so that the dry powder fire extinguishing agent can be well sprayed in the switch cabinet body 1, so that the dry powder can be directly sprayed at the fire source to extinguish the fire well. At the same time, it can be sprayed on other components to play a flame retardant role and prevent the fire from further expanding.

[0034] Working principle: When the switch cabinet body 1 is in normal use, the vacuum pump 73 is started, and the suction joint 5 extracts the heat emitted by the components inside the switch cabinet body 1. The heat flows through the suction joint 5 through the monitoring pipe 51, the lifting hose 53, the connecting seat 6, the external hose 62, the three-way joint 7, the connecting pipe, and is finally extracted by the vacuum pump 73; At the same time, the lifting transmission mechanism is running, and the reciprocating screw 3 is driven to rotate by the motor shaft of the stepping motor. When the reciprocating screw 3 rotates, the lifting slider 31 moves up and down, and the lifting slider 31 drives the lifting platform 32 to move up and down. The monitoring camera device 4 and the suction joint 5 are driven to move up and down through the lifting platform 32, so that the monitoring camera device 4 can comprehensively monitor the inside of the switch cabinet body 1; When the air intake connector 5 moves up and down, it can fully dissipate heat for the components inside the switch cabinet body 1; When heat flows through the monitoring pipe 51 , it is detected by the temperature sensor 52 arranged at the upper end of the monitoring pipe 51 , so as to monitor the temperature inside the switch cabinet body 1 in real time, and the heat can be well dissipated while monitoring the temperature inside the switch cabinet body 1 .

[0035] When a fire occurs inside the switch cabinet body 1, smoke will be sucked away by the suction joint 5, and the smoke will flow through the monitoring pipe 51, thereby triggering the smoke alarm 54, and the smoke alarm 54 sends the fire situation to the controller, and the controller controls the inner rod of the electric telescopic rod 8 to extend downward; The inner rod of the electric telescopic rod 8 pushes the storage tank 81 and the vent seat 82 to slide down along the lifting groove 61 to the bottom thereof. At this time, the lifting hose 53 and the external hose 62 are respectively connected with the two vent holes 85 on both sides of the vent seat 82, and at the same time, the vacuum machine 73 stops running and the air blower 72 is started; The blower 72 introduces air into the connecting pipe, and the air is blown into the circular groove 83 of the vent seat 82 along the three-way connector 7, the external hose 62, and the vent hole 85, and then flows out along the vent hole 85 on the other side of the circular groove 83, passes through the lifting hose 53, the monitoring pipe 51 and the suction connector 5, and finally blown out along the open end of the suction connector 5; At the same time, the wind pushes the blade 92 to rotate, the blade 92 drives the rotating shaft 9 to rotate, and the rotating shaft 9 drives the spiral plate 91 to rotate, and the dry powder fire extinguishing agent in the storage tank 81 is sent downward to the circular groove 83 through the spiral plate 91, and at the same time, the dry powder fire extinguishing agent is prevented from accumulating at the opening at the lower end of the storage tank 81, ensuring that the dry powder fire extinguishing agent can continue to fall into the circular groove 83; At this time, when the wind flows through the circular groove 83, it will drive the dry powder fire extinguishing agent to flow at the same time, so that the dry powder fire extinguishing agent is sprayed out from the air intake joint 5 along with the wind, thereby spraying the dry powder fire extinguishing agent into the switch cabinet body 1 to perform fire extinguishing operations; At the same time, the suction joint 5 is driven to move up and down through the lifting transmission mechanism, so that the dry powder fire extinguishing agent can be well sprayed in the switch cabinet body 1, so that the dry powder can be directly sprayed at the fire source to extinguish the fire well. At the same time, it can be sprayed on other components to play a flame retardant role and prevent the fire from further expanding.

[0036] 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 real-time monitoring device for the operating status of a medium- and low-voltage switch cabinet, comprising a switch cabinet body (1), wherein the front side of the switch cabinet body (1) is open, and a cabinet door (11) is hingedly connected to the opening of the switch cabinet body (1) via a hinge, wherein: The inner side surface of the cabinet door (11) is fixedly connected to a lifting support seat (2) and a connecting seat (6); a lifting transmission mechanism is installed on the lifting support seat (2); a monitoring camera device (4) and an air suction joint (5) are installed on the lifting transmission mechanism; one end of the air suction joint (5) is fixedly connected to a monitoring pipe (51); a temperature sensor (52) and a smoke alarm (54) are fixedly installed on the side surface of the monitoring pipe (51) symmetrically in the upper and lower parts; a lifting hose (53) is fixedly installed on the end of the monitoring pipe (51) away from the air suction joint (5); and the lifting hose (53) is fixedly installed away from the air suction joint (5). One end of the monitoring pipe (51) is fixedly plugged into the side of the connecting seat (6), and a lifting groove (61) is provided on the inner side of the connecting seat (6). An external hose (62) is fixedly plugged into the side of the connecting seat (6) away from the lifting hose (53). One end of the external hose (62) passes through the side wall of the switch cabinet body (1) and is connected to one end of the three-way joint (7) through a pipe joint. The other two ends of the three-way joint (7) are respectively connected to a blower (72) and an exhauster (73) through connecting pipes. Control valves (71) are installed at the connection points between the two ends of the three-way joint (7) and the connecting pipe.

2. The device for real-time monitoring of the operating status of medium and low voltage switch cabinets according to claim 1 is characterized in that: A through slot (21) is provided on the side of the lifting support seat (2), and T-slots (22) are symmetrically provided on the side of the lifting support seat (2) on both sides of the through slot (21), and the T-slots (22) are distributed from top to bottom; The lifting transmission mechanism comprises a reciprocating screw (3) rotatably connected in a through slot (21), a lifting slider (31) sleeved on the reciprocating screw (3), a lifting platform (32) fixedly mounted on a side of the lifting slider (31), and a T-shaped slider (33) symmetrically fixedly connected to one side of the lifting platform (32).

3. The real-time monitoring device for the operation status of medium and low voltage switch cabinets according to claim 2 is characterized in that: The reciprocating screw (3) is driven by a motor shaft of a stepping motor fixedly mounted on the lower end of the lifting support seat (2), and the reciprocating screw (3) is threadedly connected to the lifting slider (31).

4. The device for real-time monitoring of the operating status of medium and low voltage switch cabinets according to claim 2 is characterized in that: The T-shaped slider (33) matches the T-shaped slot (22), and the two T-shaped sliders (33) are symmetrically distributed on both sides of the lifting slider (31). The T-shaped slider (33) is connected to the T-shaped slot (22) in an up-and-down sliding manner.

5. The device for real-time monitoring of the operating status of medium and low voltage switch cabinets according to claim 1 is characterized in that: A fire extinguishing mechanism is installed in the lifting groove (61) inside the connecting seat (6), and the fire extinguishing mechanism includes an electric telescopic rod (8) fixedly installed on the upper end of the connecting seat (6), the lower end of the electric telescopic rod (8) extends downward into the lifting groove (61) and is fixedly connected to the upper end of the storage tank (81), the inner cavity of the storage tank (81) is filled with dry powder fire extinguishing agent, and a vent seat (82) is fixedly installed at the lower end of the storage tank (81), a circular groove (83) is provided on the inner side of the vent seat (82), and a material discharge port (84) is provided through the upper end of the circular groove (83) upwardly, and ventilation holes (85) are symmetrically provided on the inner side of the vent seat (82), and a rotating material guide mechanism is installed in the storage tank (81).

6. The device for real-time monitoring of the operation status of medium and low voltage switch cabinets according to claim 5 is characterized in that: The lower end of the material storage tank (81) is inserted into a material discharge port (84), and the vent seat (82) is slidably connected to the inner wall of the lifting groove (61) up and down.

7. The device for real-time monitoring of the operation status of medium and low voltage switch cabinets according to claim 6 is characterized in that: The lower end of the material storage tank (81) is open, the lower end of the inner cavity of the material storage tank (81) is conical, and the inner cavity of the material storage tank (81) is connected to the inner cavity of the circular groove (83).

8. The device for real-time monitoring of the operating status of a medium and low voltage switch cabinet according to claim 7 is characterized in that: The rotary material guiding mechanism comprises a rotating shaft (9) rotatably connected to the inner cavity of the material storage tank (81); the rotating shaft (9) is rotatably connected to the upper end of the inner cavity of the material storage tank (81); the lower end of the rotating shaft (9) extends downward into the circular groove (83); a spiral plate (91) is fixedly sleeved on the rotating shaft (9); and a plurality of blades (92) are fixedly connected to the lower end of the rotating shaft (9) in a circular array.

9. The device for real-time monitoring of the operation status of medium and low voltage switch cabinets according to claim 8 is characterized in that: The spiral plate (91) is distributed at the lower end of the inner cavity of the storage tank (81), and the blade plate (92) is arranged in the circular groove (83).

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