High-low voltage electric power cabinet

Abstract

The invention relates to the technical field of power systems, in particular to a high-low voltage power cabinet which comprises a cabinet body, sliding rails are fixedly connected to the left side and the right side of the cabinet body, transmission parts are slidably arranged on the inner walls of the sliding rails, and partition plates are fixedly connected to the inner wall of the cabinet body. According to the fire extinguishing device, when compressed gas and dry powder in the dry powder box are sprayed out, through rotation of fan blades, the compressed gas and the dry powder in the dry powder box can be diffused more quickly, the fire extinguishing speed is increased, a gypsum board does vertical falling motion, a ventilation opening of the cabinet body can be sealed, and oxygen cannot enter the cabinet body; according to the technical scheme, open fire in the cabinet body can be extinguished more quickly, loss caused by fire disasters is reduced, potential safety hazards are reduced, when the gypsum board descends, due to the fact that the gypsum board is a free falling body, the gypsum board can impact the impact type alarm to give an alarm, an operator can quickly arrive at the site to conduct maintenance after receiving the alarm signal, and the maintenance efficiency of the cabinet body is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power systems, and particularly to a high and low voltage power cabinet. Background Art

[0002] A power system is composed of power generation, power supply, power consumption facilities, as well as secondary facilities such as regulation and control, relay protection, safety automatic devices, metering devices, dispatching automation, and power communication required to ensure its normal operation. The power cabinet is an indispensable part of the power system.

[0003] During the daily use of the power cabinet, a short circuit may occur inside the power cabinet due to various reasons. In severe cases, open flames may appear. However, when a fire breaks out inside the existing power cabinet, it is generally alarmed through sensors. When a fire breaks out, the power inside the power cabinet may be cut off due to a short circuit, making the sensors unusable, resulting in the inability to alarm in time and the open flames cannot be controlled in time, easily generating potential safety hazards. Summary of the Invention

[0004] Therefore, the present invention provides a high and low voltage power cabinet to solve the above problems.

[0005] The present invention provides the following technical solutions: A high and low voltage power cabinet includes a cabinet body. Both the left and right sides of the cabinet body are fixedly connected with slide rails. A transmission component is slidably arranged on the inner wall of the slide rails. A partition board is fixedly connected to the inner wall of the cabinet body. The top of the front surface of the cabinet body is hingedly connected with a first sealed cabinet door. The bottom of the front surface of the cabinet body is hingedly connected with a second sealed cabinet door. A connection box is fixedly connected to the top of the cabinet body; The transmission component includes a gypsum board. A fixing plate is fixedly connected to the outer side of the gypsum board. A connecting pipe is fixedly connected to the outer side of the fixing plate. A pull rope is slidably connected to the inner wall of the connecting pipe. One end of the pull rope is fixedly connected with a limiting block, and the limiting block is located at the bottom of the connecting pipe. The other end of the pull rope is fixedly connected with a first limiting plate. A first trapezoidal stopper is fixedly connected to the bottom of the first limiting plate. U-shaped frames are fixedly connected to the left and right sides of the rear side inside the connection box. An L-shaped support frame is slidably connected to the inner wall of the U-shaped frame. A first toothed plate is fixedly connected to the bottom of the L-shaped support frame. A second trapezoidal stopper is fixedly connected to the top of the L-shaped support frame. The second trapezoidal stopper is in contact with the first trapezoidal stopper. A second limiting plate is slidably connected to the inner wall of the partition board. A support plate is fixedly connected to the top of the second limiting plate. A dry powder box is fixedly connected to the top of the support plate. Second toothed plates are fixedly connected to the left and right sides of the top of the dry powder box.

[0006] As a preferred solution of the present invention, first rotating rods are rotatably connected to both the left and right sides at the rear side inside the connection box. A first gear is fixedly sleeved on the surface of each first rotating rod. The first gear meshes with a second toothed plate and also meshes with a first toothed plate.

[0007] As a preferred solution of the present invention, a spring is fixedly connected to the bottom of the support plate. The bottom of the spring is fixedly connected to the top of the partition plate. A discharge pipe is fixedly connected to the inner wall of the partition plate. The top of the discharge pipe is fixedly connected to the bottom of the dry powder box. The inner cavity of the dry powder box is communicated with the inner cavity of the discharge pipe. A sprayer is fixedly connected to the bottom of the discharge pipe. An insulating rope is fixedly connected to the bottom of the partition plate. The bottom of the insulating rope is fixedly connected to an insulating sealing plate. The top of the insulating sealing plate is in contact with the bottom of the sprayer.

[0008] As a preferred solution of the present invention, an L-shaped connecting plate is fixedly connected to the rear side of the outer side of the gypsum board. A third toothed plate is fixedly connected to the inner side of the L-shaped connecting plate. A second rotating rod is rotatably connected to the inner wall of the cabinet. A second gear is fixedly sleeved on the surface of the second rotating rod. The second gear meshes with the third toothed plate.

[0009] As a preferred solution of the present invention, a first bevel gear is fixedly connected to the front end of the second rotating rod. Third rotating rods are rotatably connected to both the left and right sides inside the cabinet. A second bevel gear is fixedly connected to one end of the inner side of each third rotating rod. The first bevel gear meshes with the second bevel gear. A fan blade is fixedly sleeved on the surface of each third rotating rod.

[0010] As a preferred solution of the present invention, the front side of the connection box is hinged to the rear side of the first sealed cabinet door. Limit slots are penetrated and opened on both the left and right sides at the top of the connection box. The surface of a first limit plate slides in the inner wall of the limit slot. Connection frames are fixedly connected to both the left and right sides at the top of the connection box. A rotating wheel is rotatably connected to the inner wall of each connection frame. A pull rope slides on the surface of the rotating wheel.

[0011] As a preferred solution of the present invention, an electricity meter is fixedly installed at the rear side inside the cabinet. Impact alarms are fixedly connected to both the left and right sides of the cabinet. The impact alarms are located at the bottom of the gypsum board.

[0012] As a preferred solution of the present invention, the number of the transmission components is two groups, and the two groups of transmission components are symmetrically distributed left and right.

[0013] As a preferred solution of the present invention, the number of the insulating ropes is four, and the four insulating ropes are located at the four corners of the top of the insulating sealing plate. The number of the support plates is two, and the two support plates are symmetrically distributed left and right.

[0014] As a preferred embodiment of the present invention, the number of the second limiting plates is two, and the two second limiting plates are symmetrically distributed left and right.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: In the present invention, when the insulating rope is melted due to the high temperature of an open flame, the insulating sealing plate falls off at this time, so that the insulating sealing plate does not block the sprayer, and the compressed gas and dry powder inside the dry powder box are ejected. Since the substances inside the dry powder box are ejected, the mass of the dry powder box is reduced, causing the dry powder box to rise horizontally, so that the first trapezoidal stopper is not blocked by the second trapezoidal stopper. Affected by the gravity of the gypsum board, the gypsum board moves downward. Through the arranged slide rails, the gypsum board makes a free-fall motion, and the fan blades start to rotate. When the compressed gas and dry powder inside the dry powder box are ejected, through the rotation of the fan blades, the compressed gas and dry powder inside the dry powder box can be diffused faster, accelerating the fire extinguishing speed. And the free-fall motion of the gypsum board will seal the ventilation opening of the cabinet body, so that oxygen cannot enter the cabinet body, and the open flame inside the cabinet can be extinguished faster, reducing the losses caused by the fire and reducing potential safety hazards. While the gypsum board is descending, since the gypsum board is in free fall, the gypsum board will hit the impact alarm, sending out an alarm. The operator receives the alarm signal and can quickly reach the scene for maintenance, improving the maintenance efficiency of the cabinet body. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is in the present invention Figure 1 partial structure schematic Figure 1 ; Figure 3 is in the present invention Figure 2 partial structure schematic Figure 2 ; Figure 4 is the rear view of the cabinet body structure in the present invention; Figure 5 is a schematic diagram of the structure of the transmission component in the present invention; Figure 6 is a schematic diagram of the structure of the self-detaching component in the present invention; Figure 7 is an enlarged view of the structure at A in the present invention; Figure 8 is an enlarged view of the structure at B in the present invention; Figure 9 is an enlarged view of the structure at C in the present invention; Figure 10 is an enlarged view of the structure at D in the present invention.

[0017] In the figure: 1, cabinet body; 2, dry powder box; 3, connection box; 4, first sealed cabinet door; 5, electricity meter; 6, slide rail; 7, transmission component; 8, impact alarm; 9, partition board; 10, second sealed cabinet door; 11, limit groove; 12, discharge pipe; 13, support plate; 14, spring; 15, sprinkler; 16, insulating sealing plate; 17, second limiting plate; 18, insulating rope; 701, gypsum board; 702, L-shaped connecting plate; 703, third toothed plate; 704, second rotating rod; 705, second gear; 706, fixing plate; 707, connecting pipe; 708, pulling rope; 709, limiting block; 710, connecting frame; 711, second toothed plate; 712, runner; 713, first bevel gear; 714, second bevel gear; 715, third rotating rod; 716, fan blade; 717, first limiting plate; 718, first trapezoidal stop block; 719, second trapezoidal stop block; 720, L-shaped support frame; 721, first toothed plate; 722, U-shaped frame; 723, first gear; 724, first rotating rod. Specific embodiments

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1 - 10 The technical solutions provided by the present invention specifically include the following embodiments: Embodiment: A high and low voltage power cabinet includes a cabinet body 1. Slide rails 6 are fixedly connected to both the left and right sides of the cabinet body 1. A transmission component 7 is slidably arranged on the inner wall of the slide rail 6. A partition board 9 is fixedly connected to the inner wall of the cabinet body 1. The top of the front surface of the cabinet body 1 is hingedly connected with a first sealed cabinet door 4, and the bottom of the front surface of the cabinet body 1 is hingedly connected with a second sealed cabinet door 10. A connection box 3 is fixedly connected to the top of the cabinet body 1; The transmission component 7 includes a gypsum board 701. The outer side of the gypsum board 701 is fixedly connected with a fixing plate 706. The outer side of the fixing plate 706 is fixedly connected with a connecting pipe 707. A pull rope 708 is slidably connected to the inner wall of the connecting pipe 707. One end of the pull rope 708 is fixedly connected with a limiting block 709. The limiting block 709 is located at the bottom of the connecting pipe 707. The other end of the pull rope 708 is fixedly connected with a first limiting plate 717. The bottom of the first limiting plate 717 is fixedly connected with a first trapezoidal stopper 718. On the left and right sides of the rear side inside the connecting box 3, U-shaped frames 722 are fixedly connected. An L-shaped support frame 720 is slidably connected to the inner wall of the U-shaped frame 722. The bottom of the L-shaped support frame 720 is fixedly connected with a first toothed plate 721. The top of the L-shaped support frame 720 is fixedly connected with a second trapezoidal stopper 719. The second trapezoidal stopper 719 is in contact with the first trapezoidal stopper 718; By inserting the dry powder box 2 onto the discharge pipe 12, the installation of the dry powder box 2 is completed. At this time, the support plate 13 moves downward under the influence of gravity, compressing the spring 14. The dry powder box 2 drives the second toothed plate 711 to descend. Through the arranged first gear 723, when the second toothed plate 711 drives the first gear 723 to rotate, the first rotating rod 724 will also rotate. The downward movement of the second toothed plate 711 causes the first gear 723 to drive the first toothed plate 721 to move upward. Through the arranged U-shaped frame 722, the first toothed plate 721 can drive the L-shaped support frame 720 to move upward, causing the second trapezoidal stopper 719 to move upward. Since the first limiting plate 717 is slidably connected to the groove wall of the limiting groove 11, pulling the first limiting plate 717 inward, the first limiting plate 717 slides along the limiting groove 11. Through the inclined surfaces of the arranged first trapezoidal stopper 718 and the second trapezoidal stopper 719, the second trapezoidal stopper 719 moves downward. After the first trapezoidal stopper 718 passes through the second trapezoidal stopper 719, the second trapezoidal stopper 719 moves upward to block the first trapezoidal stopper 718, limiting the first limiting plate 717 and the pull rope 708, and preventing the gypsum board 701 from moving downward, completing the assembly. The power cabinet can achieve automatic fire extinguishing and automatic alarm without power, with a simple structure and improved practicality of the power cabinet; A second limiting plate 17 is slidably connected to the inner wall of the partition plate 9. A support plate 13 is fixedly connected to the top of the second limiting plate 17. A dry powder box 2 is fixedly connected to the top of the support plate 13. Second toothed plates 711 are fixedly connected to the left and right sides of the top of the dry powder box 2. First rotating rods 724 are rotatably connected to the left and right sides of the rear side inside the connection box 3. A first gear 723 is fixedly sleeved on the surface of the first rotating rod 724. The first gear 723 meshes with the second toothed plate 711. The first gear 723 meshes with the first toothed plate 721. An L-shaped connecting plate 702 is fixedly connected to the rear side of the outside of the gypsum board 701. A third toothed plate 703 is fixedly connected to the inside of the L-shaped connecting plate 702. A second rotating rod 704 is rotatably connected to the inner wall of the cabinet body 1. A second gear 705 is fixedly sleeved on the surface of the second rotating rod 704. The second gear 705 meshes with the third toothed plate 703. A first bevel gear 713 is fixedly connected to the front end of the second rotating rod 704. Third rotating rods 715 are rotatably connected to the left and right sides inside the cabinet body 1. A second bevel gear 714 is fixedly connected to one end of the inner side of the third rotating rod 715. The first bevel gear 713 meshes with the second bevel gear 714. A fan blade 716 is fixedly sleeved on the surface of the third rotating rod 715. The front side of the connection box 3 is hinged to the rear side of the first sealed cabinet door 4. Limiting grooves 11 are formed through the left and right sides of the top of the connection box 3. The inner wall of the limiting groove 11 is slidably connected to the surface of the first limiting plate 717. Connection frames 710 are fixedly connected to the left and right sides of the top of the connection box 3. A rotating wheel 712 is rotatably connected to the inner wall of the connection frame 710. The pulling rope 708 is slidably connected to the surface of the rotating wheel 712; When the cabinet body 1 is in use, when the electricity meter 5 short-circuits due to unknown factors and causes a fire in the electricity meter 5, the insulating rope 18 melts due to the high temperature of the fire. At this time, the insulating sealing plate 16 falls off, so that the insulating sealing plate 16 does not block the sprinkler 15, and the compressed gas and dry powder in the dry powder box 2 are ejected. Since the substances in the dry powder box 2 are ejected, the quality of the dry powder box 2 decreases, and the spring 14 pushes the dry powder box 2 to rise. Limited by the second limiting plate 17, the dry powder box 2 rises horizontally, so that the dry powder box 2 drives the second toothed plate 711 to rise. Through the arranged first gear 723, when the second toothed plate 711 drives the first gear 723 to rotate, the first rotating rod 724 will also rotate. When the second toothed plate 711 moves upward, the first gear 723 will drive the first toothed plate 721 to move downward. Through the arranged U-shaped frame 722, the first toothed plate 721 can drive the L-shaped support frame 720 to move downward, so that the second trapezoidal block 719 moves downward, so that the first trapezoidal block 718 is not blocked by the second trapezoidal block 719. Affected by the gravity of the gypsum board 701, the gypsum board 701 moves downward. Through the arranged slide rail 6, the gypsum board 701 makes a free fall motion, so that the L-shaped connecting plate 702 drives the third toothed plate 703 to move horizontally downward, so that the third toothed plate 703 drives the second gear 705 to rotate, so that the second rotating rod 704 starts to rotate. The second rotating rod 704 drives the first bevel gear 713 to rotate, so that the second bevel gear 714 meshing with the first bevel gear 713 starts to rotate, so that the third rotating rod 715 drives the fan blade 716 to start to rotate. When the compressed gas and dry powder in the dry powder box 2 are ejected, through the rotation of the fan blade 716, the compressed gas and dry powder in the dry powder box 2 can be diffused faster, accelerating the fire extinguishing speed. And when the gypsum board 701 makes a free fall motion, it will seal the ventilation opening of the cabinet body 1, so that oxygen cannot enter the cabinet body 1, and the open fire in the cabinet body 1 can be extinguished faster, reducing the loss caused by the fire and reducing the safety hazard. While the gypsum board 701 is descending, since the gypsum board 701 is in free fall, the gypsum board 701 will hit the impact alarm 8 and send out an alarm. The operator receives the alarm signal and can quickly reach the scene for maintenance, improving the maintenance efficiency of the cabinet body 1.

[0020] The bottom of the support plate 13 is fixedly connected with a spring 14. The bottom of the spring 14 is fixedly connected with the top of the partition plate 9. The inner wall of the partition plate 9 is fixedly connected with a discharge pipe 12. The top of the discharge pipe 12 is fixedly connected with the bottom of the dry powder box 2. The inner cavity of the dry powder box 2 is communicated with the inner cavity of the discharge pipe 12. The bottom of the discharge pipe 12 is fixedly connected with a sprinkler 15. The bottom of the partition plate 9 is fixedly connected with an insulating rope 18. The bottom of the insulating rope 18 is fixedly connected with an insulating sealing plate 16. The top of the insulating sealing plate 16 is attached to the bottom of the sprinkler 15. The insulating rope 18 is melted by the high temperature of an open flame. At this time, the insulating sealing plate 16 falls off, so that the insulating sealing plate 16 does not block the sprayer 15, and the compressed gas and dry powder inside the dry powder box 2 are ejected. Since the substances inside the dry powder box 2 are ejected, fire extinguishing operations are carried out on the open flame inside the cabinet body 1.

[0021] A wattmeter 5 is fixedly installed at the rear side inside the cabinet body 1. Impact alarms 8 are fixedly connected to both the left and right sides of the cabinet body 1. The impact alarms 8 are located at the bottom of the gypsum board 701. The number of transmission components 7 is two groups, and the two groups of transmission components 7 are symmetrically distributed left and right. The number of insulating ropes 18 is four, and the four insulating ropes 18 are located at the four corners of the top of the insulating sealing plate 16. The number of support plates 13 is two, and the two support plates 13 are symmetrically distributed left and right. The number of second limit plates 17 is two, and the two second limit plates 17 are symmetrically distributed left and right; Through the two groups of transmission components 7 provided, the dry powder and gas inside the cabinet body 1 can be sprayed more evenly, improving the coverage of the gas and dry powder on the open flame, enabling the compressed gas and dry powder inside the dry powder box 2 to diffuse faster, accelerating the fire extinguishing speed. And the gypsum board 701 makes a free fall motion to seal the ventilation opening of the cabinet body 1, so that oxygen cannot enter the cabinet body 1, and the open flame inside the cabinet body 1 can be extinguished faster, reducing the losses caused by the fire and reducing potential safety hazards.

[0022] When a high-low voltage power cabinet in this solution is working, when the cabinet body 1 is in use, if the power meter 5 is short-circuited due to unknown factors and a fire appears on the power meter 5, the insulating rope 18 is melted by the high temperature of the fire. At this time, the insulating cover plate 16 falls off, so that the insulating cover plate 16 no longer blocks the sprayer 15, and the compressed gas and dry powder in the dry powder box 2 are ejected. Since the substances in the dry powder box 2 are ejected, the quality of the dry powder box 2 decreases, and the spring 14 pushes the dry powder box 2 to rise. Limited by the second limiting plate 17, the dry powder box 2 rises horizontally, so that the dry powder box 2 drives the second toothed plate 711 to rise. Through the arranged first gear 723, when the second toothed plate 711 drives the first gear 723 to rotate, the first rotating rod 724 will also rotate. The upward movement of the second toothed plate 711 will cause the first gear 723 to drive the first toothed plate 721 to move downward. Through the arranged U-shaped frame 722, the first toothed plate 721 can drive the L-shaped support frame 720 to move downward, so that the second trapezoidal stopper 719 moves downward, so that the first trapezoidal stopper 718 is no longer blocked by the second trapezoidal stopper 719. Affected by the gravity of the gypsum board 701, the gypsum board 701 moves downward. Through the arranged slide rail 6, the gypsum board 701 makes a free fall motion, so that the L-shaped connecting plate 702 drives the third toothed plate 703 to move horizontally downward, so that the third toothed plate 703 drives the second gear 705 to rotate, and the second rotating rod 704 starts to rotate. The second rotating rod 704 drives the first bevel gear 713 to rotate, so that the second bevel gear 714 meshing with the first bevel gear 713 starts to rotate, so that the third rotating rod 715 drives the fan blade 716 to start rotating. When the compressed gas and dry powder in the dry powder box 2 are ejected, through the rotation of the fan blade 716, the compressed gas and dry powder in the dry powder box 2 can be diffused faster, accelerating the fire extinguishing speed. And the free fall motion of the gypsum board 701 will seal the ventilation opening of the cabinet body 1, so that oxygen cannot enter the cabinet body 1, and the open fire in the cabinet body 1 can be extinguished faster, reducing the loss caused by the fire and reducing the safety hazard. While the gypsum board 701 is descending, since the gypsum board 701 is in free fall, the gypsum board 701 will hit the impact alarm 8 and send out an alarm. The operator receives the alarm signal and can quickly reach the scene for maintenance, improving the maintenance efficiency of the cabinet body 1; After the maintenance of the cabinet body 1 is completed, replace the insulating rope 18 so that the insulating seal plate 16 fits the sprinkler 15 again. Replace the new dry powder box 2 and insert the dry powder box 2 onto the discharge pipe 12 to complete the installation of the dry powder box 2. At this time, under the influence of gravity, the support plate 13 moves downward, compressing the spring 14. The dry powder box 2 drives the second toothed plate 711 to descend. Through the provided first gear 723, when the second toothed plate 711 drives the first gear 723 to rotate, the first rotating rod 724 will also rotate. The downward movement of the second toothed plate 711 causes the first gear 723 to drive the first toothed plate 721 to move upward. Through the provided U-shaped frame 722, the first toothed plate 721 can drive the L-shaped support frame 720 to move upward, causing the second trapezoidal stopper 719 to move upward. Since the first limiting plate 717 is slidably connected to the inner wall of the limiting groove 11, pull the first limiting plate 717 inward, and the first limiting plate 717 slides along the limiting groove 11. Through the inclined surfaces of the provided first trapezoidal stopper 718 and the second trapezoidal stopper 719, the second trapezoidal stopper 719 moves downward. After the first trapezoidal stopper 718 passes through the second trapezoidal stopper 719, the second trapezoidal stopper 719 moves upward to block the first trapezoidal stopper 718, limiting the first limiting plate 717 and the pull rope 708, and the gypsum board 701 cannot move downward, completing the assembly. The power cabinet can achieve automatic fire extinguishing and automatic alarm without power, with a simple structure and improved practicality of the power cabinet.

[0023] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A high and low voltage power cabinet, characterized in that: The cabinet comprises a cabinet body (1), wherein both left and right sides of the cabinet body (1) are fixedly connected to slide rails (6), the inner wall of the slide rails (6) is slidably provided with a transmission component (7), the inner wall of the cabinet body (1) is fixedly connected to a partition plate (9), the top hinge of the front surface of the cabinet body (1) is connected to a first sealed cabinet door (4), the bottom hinge of the front surface of the cabinet body (1) is connected to a second sealed cabinet door (10), and the top of the cabinet body (1) is fixedly connected to a connection box (3); The transmission component (7) comprises a gypsum board (701), the outer side of the gypsum board (701) is fixedly connected to a fixing plate (706), the outer side of the fixing plate (706) is fixedly connected to a connecting tube (707), the inner wall of the connecting tube (707) is slidably connected to a pull rope (708), one end of the pull rope (708) is fixedly connected to a limiting block (709), the limiting block (709) is located at the bottom of the connecting tube (707), the other end of the pull rope (708) is fixedly connected to a first limiting plate (717), the bottom of the first limiting plate (717) is fixedly connected to a first trapezoidal stopper (718), and the left and right sides of the rear side of the connection box (3) are fixedly connected to U The U-shaped frame (722) is slidably connected to an L-shaped support frame (720) on its inner wall, the bottom of the L-shaped support frame (720) is fixedly connected to a first tooth plate (721), the top of the L-shaped support frame (720) is fixedly connected to a second trapezoidal stopper (719), the second trapezoidal stopper (719) and the first trapezoidal stopper (718) are in contact with each other, the inner wall of the partition plate (9) is slidably connected to a second limit plate (17), the top of the second limit plate (17) is fixedly connected to a support plate (13), the top of the support plate (13) is fixedly connected to a dry powder box (2), and the left and right sides of the top of the dry powder box (2) are fixedly connected to second tooth plates (711).

2. A high and low voltage power cabinet according to claim 1, characterized in that: The left and right sides of the rear side of the connection box (3) are rotatably connected to a first rotating rod (724); a first gear (723) is fixedly sleeved on the surface of the first rotating rod (724); the first gear (723) is meshed with the second toothed plate (711); and the first gear (723) is meshed with the first toothed plate (721).

3. A high and low voltage power cabinet according to claim 1, characterized in that: The bottom of the support plate (13) is fixedly connected to a spring (14), the bottom of the spring (14) is fixedly connected to the top of the partition plate (9), the inner wall of the partition plate (9) is fixedly connected to a discharge pipe (12), the top of the discharge pipe (12) is fixedly connected to the bottom of the dry powder box (2), the inner cavity of the dry powder box (2) is connected to the inner cavity of the discharge pipe (12), the bottom of the discharge pipe (12) is fixedly connected to a sprayer (15), the bottom of the partition plate (9) is fixedly connected to an insulating rope (18), the bottom of the insulating rope (18) is fixedly connected to an insulating sealing plate (16), and the top of the insulating sealing plate (16) is in contact with the bottom of the sprayer (15).

4. A high and low voltage power cabinet according to claim 1, characterized in that: An L-shaped connecting plate (702) is fixedly connected to the rear side of the outer side of the gypsum board (701), a third tooth plate (703) is fixedly connected to the inner side of the L-shaped connecting plate (702), a second rotating rod (704) is rotatably connected to the inner wall of the cabinet body (1), a second gear (705) is fixedly sleeved on the surface of the second rotating rod (704), and the second gear (705) is meshed with the third tooth plate (703).

5. A high and low voltage power cabinet according to claim 4, characterized in that: The front end of the second rotating rod (704) is fixedly connected to a first bevel gear (713); the left and right sides of the cabinet (1) are rotatably connected to third rotating rods (715); one end of the inner side of the third rotating rod (715) is fixedly connected to a second bevel gear (714); the first bevel gear (713) is meshed with the second bevel gear (714); and a fan blade (716) is fixedly sleeved on the surface of the third rotating rod (715).

6. A high and low voltage power cabinet according to claim 1, characterized in that: The front side of the connection box (3) is hingedly connected to the rear side of the first sealed cabinet door (4); the left and right sides of the top of the connection box (3) are provided with limit grooves (11); the inner wall of the limit groove (11) is slidably connected to the surface of the first limit plate (717); the left and right sides of the top of the connection box (3) are fixedly connected to a connection frame (710); the inner wall of the connection frame (710) is rotatably connected to a rotating wheel (712); and the pull rope (708) is slidably connected to the surface of the rotating wheel (712).

7. A high and low voltage power cabinet according to claim 1, characterized in that: An electric power meter (5) is fixedly installed on the rear side of the cabinet (1), and impact alarms (8) are fixedly connected to the left and right sides of the cabinet (1), wherein the impact alarms (8) are located at the bottom of the gypsum board (701).

8. A high and low voltage power cabinet according to claim 6, characterized in that: The number of the transmission components (7) is two groups, and the two groups of transmission components (7) are symmetrically distributed on the left and right.

9. A high and low voltage power cabinet according to claim 3, characterized in that: The number of the insulating ropes (18) is four, and the four insulating ropes (18) are located at the four corners of the top of the insulating sealing plate (16). The number of the supporting plates (13) is two, and the two supporting plates (13) are symmetrically distributed on the left and right.

10. A high and low voltage power cabinet according to claim 1, characterized in that: The number of the second limiting plates (17) is two, and the two second limiting plates (17) are symmetrically distributed left and right.

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