Anti-interference mining explosion-proof transformer capable of cooling

Abstract

The invention belongs to the technical field of transformers, and particularly relates to an anti-interference mining anti-explosion transformer capable of cooling, which comprises a transformer main body, the transformer main body comprises an anti-explosion shell, a cavity is formed in the side wall of the anti-explosion shell, and heat dissipation holes are formed in the side surface of the anti-explosion shell in a penetrating manner; sparks or high-temperature particles in the explosion-proof shell can be isolated in the explosion-proof shell through downward pressing and blocking work of the barrier plate, so that the sparks or the high-temperature particles can be prevented from splashing to the outside, ignition of surrounding inflammables is avoided, the possibility of fire disasters is reduced, safety of a working place and the surrounding environment is guaranteed, and the service life of the explosion-proof shell is prolonged. And secondly, a choke plate, a connecting rod and a rotating ring can rotate around a second supporting shaft when being impacted by jet airflow from an air collecting pipe, so that a water body at the middle lower part of a moving frame can be disturbed, and the harm to the surrounding environment and the health of personnel can be reduced. And the occurrence probability of safety accidents such as poisoning is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of transformers, in particular to a mine-used explosion-proof transformer capable of resisting interference and cooling. BACKGROUND

[0002] The mine-used explosion-proof transformer capable of resisting interference and cooling is an electrical equipment specially used in mine environments, which has an explosion-proof function. Meanwhile, through special design and technical means, the transformer can effectively resist electromagnetic interference, mechanical vibration interference and the like generated by various electrical equipment in the mine, so as to ensure stable operation and accurate transmission of electric energy. In addition, the transformer has a good cooling system, which can cope with the high-temperature environment in the mine and the heat generated by its own operation, so as to prevent performance from being affected or safety accidents from being caused due to overheating, and provide stable and reliable power supply for production equipment in the mine.

[0003] In the prior art, the mine-used explosion-proof transformer capable of resisting interference and cooling realizes voltage conversion through electromagnetic induction principle. The core of the transformer is made of high magnetic permeability material to concentrate the magnetic field and reduce leakage. The coil is wound with a shielding layer or an electromagnetic filter module is additionally arranged to block the intrusion of external electromagnetic interference and the leakage of internal signals. In terms of cooling, the equipment adopts an explosion-proof housing combined with a high-efficiency heat dissipation structure to conduct heat to the surface of the housing through natural convection or forced oil cooling.

[0004] The above scheme still has some problems in actual application. Although the existing technology has a good protective effect on the mine-used explosion-proof transformer, the explosion-proof transformer is usually provided with heat dissipation holes to improve heat dissipation effect. When an abnormality occurs in the transformer (such as winding short circuit, core failure, etc.), a large amount of high-temperature and high-pressure gas is generated in the transformer, so that the internal pressure is much higher than the external pressure. According to the gas flow principle, gas always flows from a high-pressure area to a low-pressure area. The heat dissipation holes serve as a channel for the transformer to communicate with the outside environment. Under the action of the pressure difference, the high-temperature and high-pressure gas will be rapidly sprayed out of the heat dissipation holes to the low-pressure environment outside. The mine-used transformer is usually located in a mine environment where flammable and explosive substances such as gas and coal dust exist. At this time, sparks or high-temperature particles may be carried in the high-temperature and high-pressure gas sprayed out of the heat dissipation holes. Once the sparks or high-temperature particles come into contact with the surrounding flammable and explosive substances, a fire or even an explosion may be easily caused, which may result in serious safety accidents.

[0005] Therefore, the application provides a mine-used explosion-proof transformer capable of resisting interference and cooling. SUMMARY

[0006] In order to make up for the deficiencies of the prior art and solve at least one technical problem proposed in the background.

[0007] The technical scheme adopted by the present application to solve its technical problems is: the anti-interference and cooling mine explosion-proof transformer comprises a transformer main body, the transformer main body comprises an explosion-proof shell, a cavity is formed in the side wall of the explosion-proof shell, and a plurality of heat dissipation holes are formed in the side wall of the explosion-proof shell; and a descending plugging assembly is arranged in the transformer main body. The descending plugging assembly comprises a blocking plate sliding in the explosion-proof shell, and the movement of the blocking plate can plug the heat dissipation holes when the transformer main body abnormally, so as to prevent the sparks in the transformer main body from splashing to the outside of the transformer main body through the heat dissipation holes.

[0008] Preferably, the descending plugging assembly comprises an electric guide rail, the electric guide rail is fixedly connected in the cavity of the side wall of the explosion-proof shell, a sliding block is slidingly connected in the electric guide rail, and the side wall of the sliding block is fixedly connected with the blocking plate.

[0009] Preferably, the blocking plate moves downward when the electric guide rail is started, and performs plugging work on the heat dissipation holes, the bottom of the blocking plate is not aligned with the bottom of the sliding block, and exceeds the bottom of the sliding block.

[0010] Preferably, the descending plugging assembly further comprises an L-shaped piston cylinder, the L-shaped piston cylinder is fixedly connected in the cavity of the side wall of the explosion-proof shell, the L-shaped piston cylinder is composed of a vertical cylinder and a horizontal cylinder, a piston rod is slidingly connected in the vertical cylinder of the L-shaped piston cylinder, a piston sheet is fixedly connected to the bottom of the piston rod, a reciprocating spring is fixedly connected to one side of the piston sheet, and the other end of the reciprocating spring is fixed to the top of the inner cavity of the vertical cylinder of the L-shaped piston cylinder.

[0011] Preferably, the reciprocating spring is sleeved on the outer ring surface of the piston rod, a water outlet pipe is fixedly connected to the outer ring surface of the horizontal cylinder of the L-shaped piston cylinder, and a water collecting groove is formed in the bottom of the explosion-proof shell.

[0012] Preferably, the piston rod and the blocking plate are in the same vertical plane, the water outlet pipe is in communication with the water collecting groove, and when the blocking plate is pressed downward, liquid medium can be injected into the water collecting groove through the water outlet pipe, so that the liquid medium can fill the gap between the blocking plate and the water collecting groove.

[0013] Preferably, a cooling and lifting assembly for exhausting is arranged at the bottom of the transformer main body, a first supporting shaft is fixedly connected to the side wall of the water collecting groove, a rotating gear is fixedly connected to the outer ring surface of the first supporting shaft, a first rack is engaged with the outer ring surface of the rotating gear, and a second rack is engaged with the outer ring surface of the rotating gear.

[0014] Preferably, the first rack is fixedly connected to the side of the blocking plate, and the first rack and the second rack are oppositely distributed about the central axis of the first supporting shaft.

[0015] Preferably, the second rack top is fixedly connected with a lifting frame, the lifting frame top is fixedly connected with a moving frame, the moving frame side wall is fixedly connected with a wind collecting pipe, the moving frame inner cavity side wall is fixedly connected with a second support shaft, the second support shaft outer ring surface is rotatably connected with a rotating ring, the rotating ring outer ring surface is fixedly connected with a connecting rod, and the connecting rod end away from the rotating ring is fixedly connected with a wind resistance plate.

[0016] Preferably, the moving frame side wall is throughly provided with a first air outlet, the explosion-proof shell side wall is throughly provided with a second air outlet, the first air outlet and the wind collecting pipe are in the same horizontal plane, the wind collecting pipe pipeline opening is aligned with the wind resistance plate, and the moving frame side wall is tightly attached to the water collecting tank side wall.

[0017] The beneficial effects of the present application are as follows: 1. The anti-interference and cooling mine explosion-proof transformer can prevent sparks or high-temperature particles from flying out of the explosion-proof shell and igniting the surrounding combustible materials, thereby reducing the possibility of fire and ensuring the safety of the work site and the surrounding environment.

[0018] 2. The anti-interference and cooling mine explosion-proof transformer according to the present application, when the second air outlet is at the same horizontal plane as the first air outlet, the gas in the explosion-proof shell expanded due to high temperature flows into the moving frame through the air collecting pipe, since one side of the air collecting pipe is opposite to the air baffle, when the gas flows into the moving frame through the air collecting pipe, the air baffle is pushed by the airflow, since the lower part of the moving frame is always soaked in the liquid medium in the water collecting tank when the moving frame completes the lifting work, and the middle and lower parts of the air baffle perpendicular to the water surface are also soaked in the liquid medium, when the air baffle is impacted by the airflow from the air collecting pipe, the air baffle, connecting rod and rotating ring rotate around the second support shaft, so as to disturb the water in the lower part of the moving frame, and further accelerate the cooling of the high-temperature gas flowing through, and through the disturbance of the water, the toxic and harmful substances in the airflow can be diluted, so as to reduce the harm to the surrounding environment and the health of personnel, and reduce the probability of occurrence of poisoning and other safety accidents. BRIEF DESCRIPTION OF DRAWINGS

[0019] The present application will be further described below in combination with the drawings.

[0020] Figure 1 is a schematic diagram of the overall structure of a preferred embodiment of the present application; Figure 2 is a schematic diagram of the front view of the explosion-proof transformer according to the present application; Figure 3 is a schematic diagram of the position structure of the explosion-proof transformer and the lowering and blocking assembly according to the present application; Figure 4 is a schematic diagram of the air baffle according to the present application; Figure 5 is a schematic diagram of the internal structure of the L-shaped piston cylinder according to the present application; Figure 6 is a schematic diagram of the position structure of the explosion-proof transformer and the cooling and lifting assembly according to the present application; Figure 7 is a schematic diagram of the internal structure of the moving frame according to the present application; Figure 8 is a schematic diagram of the exploded structure of part of the cooling and lifting assembly according to the present application; In the drawings: 1, transformer main body; 101, explosion-proof shell; 102, heat dissipation hole; 2, lowering and blocking assembly; 201, electric guide rail; 202, sliding block; 203, air baffle; 204, L-shaped piston cylinder; 205, piston rod; 206, piston sheet; 207, reciprocating spring; 208, water outlet pipe; 209, water collecting tank; 3. Cooling and lifting assembly; 301. First support shaft; 302. Rotating gear; 303. First rack; 304. Second rack; 305. Lifting frame; 306. Moving frame; 307. Air collection duct; 308. Second support shaft; 309. Rotating ring; 310. Connecting rod; 311. Wind baffle; 312. First air outlet; 313. Second air outlet. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0022] Example 1 like Figures 1 to 8 As shown in the figure, the anti-interference and cooling mining explosion-proof transformer of the present invention includes a transformer body 1, the transformer body 1 includes an explosion-proof shell 101, the explosion-proof shell 101 has a cavity in the side wall, the explosion-proof shell 101 has a heat dissipation hole 102 through the side, and a descending sealing component 2 is provided inside the transformer body 1. The descending sealing assembly 2 includes a baffle plate 203 that slides inside the explosion-proof housing 101. The movement of the baffle plate 203 can seal the heat dissipation hole 102 when an abnormal situation occurs in the transformer body 1, preventing sparks inside the transformer body 1 from splashing to the outside of the transformer body 1 through the heat dissipation hole 102.

[0023] Specifically, although existing technology provides good protection for explosion-proof transformers used in mining, these transformers typically have ventilation holes 102 to improve heat dissipation. However, when there are abnormalities inside the transformer (such as winding short circuits or core failures), a large amount of high-temperature and high-pressure gas is generated inside the transformer, making the internal pressure much higher than the external pressure. According to the principle of gas flow, gas always flows from high-pressure areas to low-pressure areas. As a channel connecting the transformer to the outside world, the high-temperature and high-pressure gas will quickly be ejected into the low-pressure environment outside the ventilation holes 102 under the action of pressure difference. The mining environment where the transformer is located usually contains flammable and explosive substances such as methane and coal dust. At this time, the high-temperature and high-pressure gas ejected from the ventilation holes 102 may carry sparks or high-temperature particles. Once it comes into contact with the surrounding flammable and explosive substances, it can easily cause a fire or even an explosion, resulting in a serious safety accident. Therefore, the present application solves this problem by setting the corresponding structure, the anti-interference cooling mine explosion-proof transformer of the present application, when the transformer works in the mine, the explosion-proof shell 101 will protect the internal transformer, and the high temperature gas in the transformer is discharged through the side of the heat dissipation hole 102 to achieve the purpose of cooling, but due to the explosion-proof transformer for improving the heat dissipation effect, usually set heat dissipation hole 102, and these heat dissipation holes 102 in the transformer (such as winding short circuit, core fault, etc.), due to the transformer will produce a large number of high temperature and high pressure gas, the internal pressure is much higher than the outside, according to the principle of gas flow, gas always flows from high pressure area to low pressure area, heat dissipation hole 102 as the channel between the transformer and the outside world, under the action of pressure difference, high temperature and high pressure gas will quickly through the heat dissipation hole 102 to the outside low pressure environment, and the mine transformer is usually in the mine environment of gas, coal dust and other flammable and explosive substances, at this time, the high temperature and high pressure gas from the heat dissipation hole 102 will carry sparks or high temperature particles, once in contact with the surrounding flammable and explosive substances, it is easy to cause fire and even explosion, causing serious safety accidents, so at this time, the sliding blocking plate 203 is used to block the heat dissipation hole 102 on the side of the explosion-proof shell 101, preventing the sparks in the transformer body 1 from splashing to the outside through the heat dissipation hole 102, so that the heat dissipation hole 102 can work normally, and the heat dissipation hole 102 can be blocked when the transformer body 1 is abnormal.

[0024] Example two As Figures 2 to 8 shown, another embodiment of the present application is: As Figure 4 shown, the descending blocking assembly 2 includes an electric guide rail 201, which is fixedly connected in the cavity of the side wall of the explosion-proof shell 101, the electric guide rail 201 is slidably connected with a sliding block 202 inside, and the sliding block 202 is fixedly connected with a blocking plate 203 on the side wall.

[0025] Specifically, when the transformer body 1 is abnormal, the electric guide rail 201 is started, at this time, the electric guide rail 201 will drive the sliding block 202 inside to move, and at the same time, the blocking plate 203 will be driven to move downward synchronously through the sliding block 202, at this time, the blocking plate 203 can block the heat dissipation hole 102.

[0026] As Figure 4As shown, the descending sealing assembly 2 of the embodiment further comprises an L-shaped piston cylinder 204 fixedly connected in the cavity of the side wall of the explosion-proof shell 101. The L-shaped piston cylinder 204 is composed of a vertical cylinder and a horizontal cylinder. A piston rod 205 is slidingly connected in the vertical cylinder of the L-shaped piston cylinder 204. A piston sheet 206 is fixedly connected to the bottom of the piston rod 205. A reciprocating spring 207 is fixedly connected to one side of the piston sheet 206. The other end of the reciprocating spring 207 is fixed to the top of the inner cavity of the vertical cylinder of the L-shaped piston cylinder 204.

[0027] As shown in the drawings, Figure 5 The reciprocating spring 207 of the embodiment is sleeved on the outer ring surface of the piston rod 205. A water outlet pipe 208 is fixedly connected through the outer ring surface of the horizontal cylinder of the L-shaped piston cylinder 204. A water collecting groove 209 is formed in the bottom of the explosion-proof shell 101.

[0028] Specifically, during the descending process of the blocking plate 203, since the blocking plate 203 and the piston rod 205 are in the same vertical plane, the top of the piston rod 205 will be abutted by the blocking plate 203 when the blocking plate 203 descends. At this time, the piston rod 205 will also move downward synchronously under the pushing of the blocking plate 203. The piston sheet 206 fixedly connected to the bottom of the piston rod 205 will also move synchronously, and at the same time, the liquid medium stored in the L-shaped piston cylinder 204 will be pushed into the water collecting groove 209 through the water outlet pipe 208. At this time, the blocking plate 203 is still moving downward. Since the bottom of the blocking plate 203 is higher than the bottom of the sliding block 202, when the bottom of the blocking plate 203 abuts against the bottom of the water collecting groove 209, the liquid medium in the L-shaped piston cylinder 204 will be completely injected into the water collecting groove 209. At this time, the gap between the water collecting groove 209 and the blocking plate 203 will be filled with the liquid medium. Through the downward sealing work of the blocking plate 203, the sparks or high-temperature particles in the explosion-proof shell 101 can be isolated in the explosion-proof shell 101, so as to prevent the sparks or high-temperature particles from splashing outside, avoid igniting the surrounding combustible materials, and thus reduce the possibility of fire, protect the safety of the working place and the surrounding environment, and further improve the explosion-proof performance of the transformer main body 1.

[0029] As shown in the drawings, Figure 8 The transformer main body 1 of the embodiment is provided with a cooling lifting assembly 3 for exhaust at the bottom. A first support shaft 301 is fixedly connected to the side wall of the water collecting groove 209. A rotating gear 302 is fixedly connected to the outer ring surface of the first support shaft 301. A first rack 303 is engaged with the outer ring surface of the rotating gear 302. A second rack 304 is engaged with the outer ring surface of the rotating gear 302.

[0030] Specifically, when the blocking plate 203 moves downward, the first rack 303 will move downward synchronously, and during the movement, the teeth at the bottom of the first rack 303 will gradually engage with the teeth on the outer surface of the rotating gear 302, and at the same time, the rotating gear 302 will rotate around the first support shaft 301. Since the second rack 304 is also engaged with the rotating gear 302 and slides on the inner wall of the water collecting groove 209, when the rotating gear 302 rotates, the second rack 304 will move linearly. Since the second rack 304 is engaged with the rotating gear 302 in the initial state, and the first rack 303 engages with the rotating gear 302 at the bottom during downward movement, the second rack 304 will move linearly upward when the first rack 303 moves downward. The movement of the second rack 304 can provide power support for subsequent components.

[0031] As shown in Figure 7 and Figure 8 , the second rack 304 of the present embodiment is fixedly connected at the top, the lifting frame 305 is fixedly connected at the top of the lifting frame 305, the moving frame 306 is fixedly connected to the side wall of the moving frame 306, the air collecting pipe 307 is fixedly connected to the side wall of the moving frame 306, the second support shaft 308 is fixedly connected to the inner wall of the moving frame 306, the rotating ring 309 is rotatably connected to the outer surface of the second support shaft 308, the connecting rod 310 is fixedly connected to the outer surface of the rotating ring 309, and the wind blocking plate 311 is fixedly connected to the end of the connecting rod 310 away from the rotating ring 309.

[0032] As shown in Figure 6 and Figure 8 , the first air outlet 312 is formed through the side wall of the moving frame 306, the second air outlet 313 is formed through the side wall of the explosion-proof shell 101, the first air outlet 312 and the air collecting pipe 307 are on the same horizontal plane, and the air collecting pipe 307 is aligned with the wind blocking plate 311, and the side wall of the moving frame 306 is tightly attached to the side wall of the water collecting groove 209.

[0033] Specifically, when the second rack 304 moves upward, it will simultaneously drive the lifting frame 305 fixed thereto to move upward, thereby driving the moving frame 306 fixed thereto to move upward. When the bottom of the blocking plate 203 is attached to the bottom of the water collecting groove 209, the moving frame 306 will reach the predetermined position, and at this time, the first air outlet 312 formed through the moving frame 306 will be on the same horizontal plane as the second air outlet 313 formed through the side of the explosion-proof shell 101. At this time, the internal space of the explosion-proof shell 101 will be in communication with the external space, When the second air outlet 313 is at the same level as the first air outlet 312, the gas inside the explosion-proof shell 101 that expands due to high temperature will flow into the moving frame 306 through the air collecting pipe 307. Since one side of the air collecting pipe 307 is directly opposite to the baffle 311, when the gas flows into the moving frame 306 through the air collecting pipe 307, the baffle 311 will be pushed by the airflow. Since the lower part of the moving frame 306 is always immersed in the liquid medium in the water collecting tank 209 when the lifting work is completed, and the middle and lower parts of the baffle 311 that are perpendicular to the water surface are also immersed in the liquid medium, when the baffle 311 is impacted by the airflow ejected from the air collecting pipe 307, the baffle 311, the connecting rod 310 and the rotating ring 309 will rotate around the second support shaft 308, so as to disturb the water in the lower part of the moving frame 306, and further accelerate the cooling of the high-temperature gas flowing through, and the disturbance of the water can also dilute the toxic and harmful substances in the airflow, so as to reduce the harm to the surrounding environment and the health of the personnel, and reduce the probability of safety accidents such as poisoning.

[0034] Working principle, when the transformer main body 1 inside the abnormal, start electric guide rail 201, at this time the electric guide rail 201 will drive its inside sliding block 202 moves, and at the same time will be moved by sliding block 202 drive baffle 203 synchronous downward movement, at this time through the movement of baffle 203 can be sealed heat dissipation hole 102.

[0035] In the process of descending the baffle 203, since the baffle 203 and the piston rod 205 are in the same vertical plane, when the baffle 203 descends, it will abut against the top of the piston rod 205, at this time the piston rod 205 will also move downward synchronously under the pushing of the baffle 203, at this time the piston sheet 206 fixed at the bottom of the piston rod 205 will also move synchronously, and at the same time will push the liquid medium stored in the L-shaped piston cylinder 204 to the inside of the water collecting tank 209 through the water outlet pipe 208, at this time the baffle 203 is still moving downward, since the bottom of the baffle 203 exceeds the bottom of the sliding block 202, so when the bottom of the baffle 203 abuts against the bottom of the water collecting tank 209, the liquid medium in the L-shaped piston cylinder 204 will be completely injected into the water collecting tank 209, at this time the gap between the water collecting tank 209 and the baffle 203 will be filled with liquid medium, through the sealing work of the baffle 203, the sparks or high-temperature particles inside the explosion-proof shell 101 can be isolated in the explosion-proof shell 101, so as to prevent the sparks or high-temperature particles from splashing outside, avoid igniting the surrounding combustible materials, thereby reducing the possibility of fire, ensuring the safety of the working place and the surrounding environment, and further improving the explosion-proof performance of the transformer main body 1.

[0036] When the blocking plate 203 moves downward, the first rack 303 will move downward synchronously, and during the movement, the teeth at the bottom of the first rack 303 will gradually engage with the teeth on the outer surface of the rotating gear 302, and at the same time, the rotating gear 302 will rotate around the first support shaft 301. Since the second rack 304 is also engaged with the rotating gear 302 and slides on the inner wall of the water collecting tank 209, when the rotating gear 302 rotates, the second rack 304 will move linearly. Since the second rack 304 is engaged with the rotating gear 302 in the initial state, and the first rack 303 engages with the rotating gear 302 at the bottom during downward movement, the second rack 304 will move linearly upward when the first rack 303 moves downward. The movement of the second rack 304 can provide power support for subsequent components.

[0037] When the second rack 304 moves upward, it will simultaneously lift the lifting frame 305 fixed thereto, thereby lifting the moving frame 306 fixed thereto. When the bottom of the blocking plate 203 is attached to the bottom of the water collecting tank 209, the moving frame 306 will reach the predetermined position, and at this time, the first air outlet 312 passing through the moving frame 306 will be at the same level as the second air outlet 313 passing through the side of the explosion-proof shell 101. At this time, the internal space of the explosion-proof shell 101 will be in communication with the external space. When the second air outlet 313 is at the same level as the first air outlet 312, the gas in the explosion-proof shell 101 that expands due to high temperature will flow into the moving frame 306 through the air collecting pipe 307. Since one side of the air collecting pipe 307 is directly opposite the baffle plate 311, when the gas flows into the moving frame 306 through the air collecting pipe 307, the baffle plate 311 will be pushed by the airflow. Since the lower part of the moving frame 306 is always immersed in the liquid medium in the water collecting tank 209 when the lifting work is completed, and the middle and lower parts of the baffle plate 311 perpendicular to the water surface are also immersed in the liquid medium, when the baffle plate 311 is impacted by the airflow from the air collecting pipe 307, the baffle plate 311, the connecting rod 310, and the rotating ring 309 will rotate around the second support shaft 308, thereby disturbing the water in the lower part of the moving frame 306, accelerating the cooling of the high-temperature gas flowing through, and diluting the toxic and harmful substances in the airflow, thereby reducing the harm to the surrounding environment and the health of personnel, and reducing the probability of safety accidents such as poisoning.

[0038] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A mine-use explosion-proof transformer with anti-interference and cooling capabilities, comprising a transformer body (1), wherein the transformer body (1) includes an explosion-proof shell (101), a cavity is formed in the side wall of the explosion-proof shell (101), and a heat dissipation hole (102) is formed through the side of the explosion-proof shell (101), characterized in that, The transformer body (1) is equipped with a descending sealing component (2). The descending sealing assembly (2) includes a baffle plate (203) that slides inside the explosion-proof housing (101). The movement of the baffle plate (203) can seal the heat dissipation hole (102) when an abnormal situation occurs in the transformer body (1), preventing sparks inside the transformer body (1) from splashing to the outside of the transformer body (1) through the heat dissipation hole (102).

2. The anti-interference and cooling explosion-proof transformer for mining as described in claim 1, characterized in that: The descending sealing assembly (2) includes an electric guide rail (201), which is fixedly connected to the cavity of the side wall of the explosion-proof shell (101). A sliding block (202) is slidably connected inside the electric guide rail (201), and a blocking plate (203) is fixedly connected to the side wall of the sliding block (202).

3. The anti-interference and cooling explosion-proof transformer for mining as described in claim 2, characterized in that: When the electric guide rail (201) is started, the blocking plate (203) will move downward and block the heat dissipation hole (102). The bottom of the blocking plate (203) is not aligned with the bottom of the sliding block (202) and extends beyond the bottom of the sliding block (202).

4. The anti-interference and cooling explosion-proof transformer for mining as described in claim 2, characterized in that: The descending sealing assembly (2) also includes an L-shaped piston cylinder (204), which is fixedly connected to the cavity of the side wall of the explosion-proof shell (101). The L-shaped piston cylinder (204) is composed of a vertical cylinder and a horizontal cylinder. A piston rod (205) is slidably connected inside the vertical cylinder of the L-shaped piston cylinder (204). A piston plate (206) is fixedly connected to the bottom of the piston rod (205). A reciprocating spring (207) is fixedly connected to one side of the piston plate (206). The other end of the reciprocating spring (207) is fixed to the top of the inner cavity of the vertical cylinder of the L-shaped piston cylinder (204).

5. The anti-interference and cooling explosion-proof transformer for mining as described in claim 4, characterized in that: The reciprocating spring (207) is sleeved on the outer ring surface of the piston rod (205), and the L-shaped piston cylinder (204) is fixedly connected to the outer ring surface of the transverse cylinder with a water outlet pipe (208). The explosion-proof shell (101) has a water collection groove (209) at the bottom.

6. The anti-interference and cooling explosion-proof transformer for mining as described in claim 5, characterized in that: The piston rod (205) and the baffle plate (203) are on the same vertical plane. The water outlet pipe (208) is connected to the water collection tank (209). When the baffle plate (203) is pressed down, the liquid medium will be injected into the water collection tank (209) through the water outlet pipe (208), so that the liquid medium can fill the gap between the baffle plate (203) and the water collection tank (209).

7. A mining explosion-proof transformer with anti-interference and cooling capabilities according to claim 5, characterized in that: The transformer body (1) is provided with a cooling and lifting assembly (3) for exhausting air at the bottom. The side wall of the water collection tank (209) is fixedly connected to a first support shaft (301). A rotating gear (302) is fixedly connected to the outer ring surface of the first support shaft (301). A first rack (303) meshes with the outer ring surface of the rotating gear (302). A second rack (304) meshes with the outer ring surface of the rotating gear (302).

8. A mining explosion-proof transformer with anti-interference and cooling capabilities according to claim 7, characterized in that: The first rack (303) is fixedly connected to the side of the baffle plate (203), and the first rack (303) and the second rack (304) are distributed opposite each other about the central axis of the first support shaft (301).

9. A mining explosion-proof transformer with anti-interference and cooling capabilities according to claim 7, characterized in that: The top of the second rack (304) is fixedly connected to a lifting frame (305), the top of the lifting frame (305) is fixedly connected to a moving frame (306), the side wall of the moving frame (306) is fixedly connected to an air collecting pipe (307), the inner cavity side wall of the moving frame (306) is fixedly connected to a second support shaft (308), the outer ring surface of the second support shaft (308) is rotatably connected to a rotating ring (309), the outer ring surface of the rotating ring (309) is fixedly connected to a connecting rod (310), and the end of the connecting rod (310) away from the rotating ring (309) is fixedly connected to a wind baffle plate (311).

10. A mining explosion-proof transformer with anti-interference and cooling capabilities according to claim 9, characterized in that: The side wall of the movable frame (306) is provided with a first air outlet (312), and the side wall of the explosion-proof shell (101) is provided with a second air outlet (313). The first air outlet (312) and the air collection pipe (307) are on the same horizontal plane, and the pipe opening of the air collection pipe (307) is aligned with the wind baffle (311). The side wall of the movable frame (306) is in close contact with the side wall of the water collection tank (209).

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