Explosion-proof positive voltage power distribution cabinet

Abstract

The invention discloses an anti-explosion positive-voltage power distribution cabinet in the field of power distribution cabinets, and aims to solve the problem that in the prior art, a fire behavior in a power distribution cabinet body is not inhibited in time and explosion occurs, and the anti-explosion positive-voltage power distribution cabinet comprises the power distribution cabinet body which is internally provided with a monitoring mechanism, a fire extinguishing mechanism and an adjusting mechanism. The control module is electrically connected with the fire extinguishing mechanism and the adjusting mechanism; the fire extinguishing mechanism is connected with the adjusting mechanism, the position of a fire source is accurately obtained through the monitoring module, and accurate fire extinguishing is achieved according to control over the adjusting mechanism and the fire extinguishing mechanism through the control module. The internal environment of the power distribution cabinet body is monitored through the monitoring module, when a fire point appears, the fire extinguishing mechanism is controlled through the control module to extinguish fire, the position and angle of the fire extinguishing mechanism are adjusted by controlling the adjusting mechanism, accurate fire extinguishing is achieved, meanwhile, a warning signal is sent out through the output module, and the safety of the power distribution cabinet body is improved. And protection and maintenance preparation is provided for workers.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, in particular to an explosion-proof positive pressure power distribution cabinet. Background Art

[0002] The power distribution cabinet is also called the distribution box. It is divided into power distribution cabinet, lighting distribution cabinet and metering cabinet. It is the final equipment of the power distribution system. The power distribution cabinet is a general term for the motor control center. The power distribution cabinet is used in places where the load is relatively dispersed and there are fewer circuits. It is generally equipped with circuit equipment such as ammeters, voltmeters, and circuit breakers.

[0003] When the distribution cabinet is in use, the internal cables and other lines are prone to aging or damage after long-term use, which makes it easy for short circuits and fires to occur inside the distribution cabinet. Most distribution cabinets do not have automatic fire extinguishing functions. Therefore, when a fire occurs inside the distribution cabinet, workers cannot appear on the scene in the first time and suppress the fire, which causes the distribution cabinet to explode.

[0004] To this end, we provide an explosion-proof positive pressure distribution cabinet to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an explosion-proof positive pressure distribution cabinet, which monitors the internal environmental state of the distribution cabinet through a monitoring mechanism, and cooperates with a fire extinguishing mechanism and an adjusting mechanism to accurately extinguish the fire point in the first time.

[0006] In order to solve the above technical problems, the following technical solutions are adopted: The present invention provides an explosion-proof positive pressure distribution cabinet, comprising a distribution cabinet body, wherein a monitoring mechanism, a fire extinguishing mechanism and a regulating mechanism are arranged in the distribution cabinet body; The monitoring mechanism includes a monitoring module, a control module and an output module, wherein the monitoring module is used to monitor the internal environmental state of the power distribution cabinet, the control module is used to receive the signal of the monitoring module and convert the signal and send it to the terminal, and the output module is used to output a warning signal according to the internal environmental state of the power distribution cabinet monitored by the monitoring module; The control module is electrically connected to the fire extinguishing mechanism and the regulating mechanism; The fire extinguishing mechanism is connected to the regulating mechanism, and the fire source position is accurately obtained through the monitoring module. According to the control module of the regulating mechanism and the fire extinguishing mechanism, accurate fire extinguishing is achieved.

[0007] Optionally, the monitoring module includes a smoke sensor and a camera, and the smoke sensor and the camera are both installed on the inner top wall of the distribution cabinet; the control module is arranged in the placement box, and includes a controller, a wireless transmission module and an A / D converter; the output module includes a warning light and a buzzer; the controller is respectively connected to the smoke sensor, camera, wireless transmission module, A / D converter, warning light and buzzer through wires.

[0008] Optionally, the fire extinguishing mechanism comprises a material storage box, a discharge pipe, a solenoid valve, an air pump and an air outlet pipe, one end of the discharge pipe extends into the material storage box, and the other end extends into the distribution cabinet, the material storage box is installed on the top of the distribution cabinet, the solenoid valve is installed on the end of the discharge pipe close to the material storage box, an air outlet pipe is provided on the side wall of the end of the discharge pipe extending to the inside of the distribution cabinet, the output end of the air pump is connected to one end of the air outlet pipe, and the end of the air outlet pipe away from the air pump is connected to the material discharge pipe, and the fire extinguishing material in the discharge pipe is blown out from the air outlet pipe port by the air pump.

[0009] Optionally, a rotating motor is provided inside the storage box, and the rotating motor is installed in a protective shell. A spiral conveying rod is installed at the output end of the rotating motor. The spiral conveying rod is provided with a bearing seat for the smooth use of the spiral output rod. The end of the spiral output rod away from the rotating motor is arranged at the end of the discharge pipe.

[0010] Optionally, the adjustment mechanism includes a rotating motor, a ball screw, a movable frame and a mounting frame, one end of the ball screw is connected to the output end of the rotating motor, and the other end is arranged in a slot hole on the inner wall of the distribution cabinet, the rotating frame is installed on the inner wall of the distribution cabinet, and the distribution cabinet is also provided with a sliding rod at the same height and parallel to the ball screw, the movable frame is installed through the sliding rod and the ball screw, the ball screw is threadedly connected to the movable frame, the movable frame is slidably connected to the sliding rod, a mounting frame is provided on the movable frame, the mounting frame is connected to the discharge pipe, and the air pump is arranged on the mounting frame.

[0011] Optionally, the mobile frame is connected to the mounting frame via a hydraulic rod and a mobile seat. Two hydraulic rods are provided, one end of each hydraulic rod is installed on the mobile frame, and the other end is connected to the mobile seat. A slider is provided on the mobile seat, and the slider is slidably connected to a slide groove on the mounting frame.

[0012] Optionally, four supporting legs are installed at the bottom of the power distribution cabinet, and a mounting plate is installed on the bottom surface of each supporting leg.

[0013] Optionally, two cooling fans are installed on the inner bottom of the distribution cabinet, a first dustproof net is provided on the outer bottom surface of the distribution cabinet, and heat dissipation ports arranged at equal distances are provided on the side of the distribution cabinet. A second dustproof net is provided on the outside of one side of the distribution cabinet where the heat dissipation ports are provided, and the second dustproof net covers all the heat dissipation ports.

[0014] Optionally, a lock block and a lock frame are respectively installed on the sides of the power distribution cabinet, and the lock block is clamped inside the lock frame.

[0015] Optionally, the upper surface of the material storage box is connected to a feed pipe, and the outer surface of the feed pipe is threadedly connected to a box cover.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The present invention monitors the internal environment of the distribution cabinet through a monitoring module. When a fire point appears, the control module controls the fire extinguishing mechanism to extinguish the fire. The position and angle of the fire extinguishing mechanism are adjusted by the control adjustment mechanism to achieve precise fire extinguishing. At the same time, a warning signal is sent out through the output module to provide staff with protection and maintenance preparations.

[0017] The present invention is provided with a storage box, a discharge pipe, a solenoid valve, a rotating motor and a spiral conveying rod. When a fire occurs, a monitoring mechanism controls the solenoid valve to open, and at the same time uses the power provided by the rotating motor in cooperation with the spiral conveying rod to sprinkle the dry powder inside the storage box through the discharge pipe and into the inside of the distribution cabinet, thereby achieving the purpose of suppressing the fire, and then the distribution cabinet can suppress the fire in the first time, thereby avoiding the explosion of the distribution cabinet, and by providing an air pump and an air outlet pipe, the wind force provided by the air pump is used to blow out the dry powder inside the discharge pipe, thereby improving the spraying efficiency of the dry powder.

[0018] 2. The present invention is provided with a rotating motor, a ball screw, a movable frame, a mounting frame, a hydraulic rod and a movable seat. The power provided by the rotating motor is cooperated with the ball screw to drive the movable frame to move. At the same time, the power provided by two hydraulic rods is cooperated with the movable seat to adjust the angle of the mounting frame, thereby facilitating the precise positioning and fire extinguishing of the fire inside the distribution cabinet, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a power distribution cabinet in an embodiment of the present invention; Figure 2 A three-dimensional diagram of a cross-sectional view of a power distribution cabinet in an embodiment of the present invention; Figure 3 This is a schematic diagram of the installation of a smoke sensor in an embodiment of the present invention; Figure 4 A three-dimensional diagram of a cross-sectional view of a placement box in an embodiment of the present invention; Figure 5 A perspective view of a cross-sectional view of a material storage box in an embodiment of the present invention; Figure 6 A perspective view of a rear cross-sectional view of a power distribution cabinet in an embodiment of the present invention; Figure 7 A perspective view of a cross-sectional view of a moving frame in an embodiment of the present invention; Figure 8 A perspective view of a bottom cross-sectional view of a mounting frame in an embodiment of the present invention; Fig. 9 Schematic diagram of the distribution of dustproof nets in an embodiment of the present invention.

[0020] Description of reference numerals: 1. Power distribution cabinet; 2. Monitoring mechanism; 201. Smoke sensor; 202. Camera; 203. Placement box; 204. Controller; 205. Wireless transmission module; 206. A / D converter; 207. Warning light; 208. Buzzer; 3. Fire extinguishing mechanism; 301. Storage box; 302. Discharge pipe; 303. Solenoid valve; 304. Rotating motor; 305. Screw conveyor rod; 306. Air pump; 307. Exhaust pipe; 4. Adjusting mechanism; 401, rotating motor; 402, ball screw; 403, moving frame; 404, mounting frame; 405, hydraulic rod; 406, moving seat; 5, supporting leg; 6, mounting plate; 7, cooling fan; 8, cooling port; 9, first dustproof net; 10, second dustproof net; 11, locking block; 12, locking frame; 13, feeding pipe; 14, box cover; 15, protective shell; 16, bearing seat; 17, sliding rod; 18, sliding block; 19, sliding groove. DETAILED DESCRIPTION

[0021] The following will be combined with the accompanying 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, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Example 1

[0022] like Figure 1 As shown, this embodiment provides an explosion-proof positive pressure distribution cabinet, including a distribution cabinet body 1, wherein the distribution cabinet body 1 is provided with a monitoring mechanism 2, a fire extinguishing mechanism 3 and a regulating mechanism 4; The monitoring mechanism 2 includes a monitoring module, a control module and an output module. The monitoring module is used to monitor the internal environmental state of the power distribution cabinet 1. The control module is used to receive the signal of the monitoring module and convert and send the signal to the terminal. The output module is used to output a warning signal according to the internal environmental state of the power distribution cabinet 1 monitored by the monitoring module. The control module is electrically connected to the fire extinguishing mechanism 3 and the regulating mechanism 4; The fire extinguishing mechanism 3 is connected to the regulating mechanism 4, and the fire source position is accurately obtained through the monitoring module. According to the control module's control of the regulating mechanism 4 and the fire extinguishing mechanism 3, accurate fire extinguishing is achieved.

[0023] When a fire point appears in the power distribution cabinet 1, the monitoring module detects the fire point and transmits the signal to the control module. The control module controls the output module to output a warning signal to remind the staff to make preparations for protection and maintenance. At the same time, the control module controls the operation of the fire extinguishing mechanism. According to the location of the fire point, the control regulating mechanism 4 adjusts the output direction of the fire extinguishing mechanism 3 so that it is accurately located near the fire point. The fire point is accurately extinguished to avoid the fire from intensifying and causing an explosion. Example 2

[0024] This embodiment provides an explosion-proof positive pressure distribution cabinet based on Embodiment 1, except that: like Figure 3 As shown, the monitoring module includes a smoke sensor 201 and a camera 202, both of which are installed on the top wall of the distribution cabinet 1. The inside of the distribution cabinet 1 is monitored by the camera 202. When a fire point appears inside the distribution cabinet 1, the camera 202 obtains the specific location of the fire point to realize the control and adjustment mechanism to adjust the movement of the fire extinguishing mechanism.

[0025] Please pay attention to Figure 1 The output module includes a warning light 207 and a buzzer 208 , and the warning light 207 and the buzzer 208 are both arranged on the outer bottom of the power distribution cabinet 1 .

[0026] like Figure 4 As shown, the control module is disposed in the control box 203 , and includes a controller 204 , a wireless transmission module 205 and an A / D converter 206 .

[0027] The controller 204 is connected to the smoke sensor 201, the camera 202, the wireless transmission module 205, the A / D converter 206, the warning light 207 and the buzzer 208 through wires. The controller 204 can be a STM32 single chip microcomputer, and the model of the wireless transmission module 205 is DTD435M.

[0028] Please pay attention to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 7 and Figure 8The fire extinguishing mechanism 3 includes a storage box 301, a discharge pipe 302, a solenoid valve 303, a rotating motor 304, a spiral conveying rod 305, an air pump 306 and an air outlet pipe 307. The bottom surface of the storage box 301 is connected to the upper surface of the distribution cabinet 1, and the side of the storage box 301 is connected to the discharge pipe 302. The end of the discharge pipe 302 away from the storage box 301 passes through the distribution cabinet 1 and extends to the inside of the distribution cabinet 1.

[0029] The upper surface of the storage box 301 is connected to a feed pipe 13, which is convenient for workers to add dry powder into the storage box 301. The outer surface of the feed pipe 13 is threadedly connected to a box cover 14 to ensure that during the storage of dry powder, the dry powder is prevented from floating away from the inside of the storage box 301 as much as possible, thereby reducing the loss of dry powder.

[0030] Please pay attention to Figure 2 , Figure 3 and Figure 5 The outer surface of the discharge pipe 302 is connected to a solenoid valve 303, and a rotating motor 304 is arranged inside the storage box 301. The rotating motor 302 is arranged in a protective shell 15. The installation of the protective shell 15 plays a role in protecting the rotating motor 304, thereby avoiding contact between the dry powder and the rotating motor 304 as much as possible.

[0031] Please pay attention to Figure 5 The output end of the rotating motor 304 is provided with a screw conveying rod 305. The end of the screw conveying rod 305 away from the motor is provided with a bearing seat 16. The bottom surface of the bearing seat 16 is connected to the inner bottom wall of the storage box 301, which plays a role in stabilizing the screw conveying rod 305, thereby avoiding the screw conveying rod 305 from shaking when rotating as much as possible, thereby ensuring the working stability of the screw conveying rod 305. The end of the screw conveying rod 305 away from the motor is arranged at the end of the discharge pipe 302, and the dry powder in the storage box is transported to the discharge pipe 302 through the screw conveying rod 305.

[0032] Please pay attention to Figure 7 , Figure 8 The output end of the air pump 306 is installed on the air outlet pipe 307. The end of the air outlet pipe 307 away from the air pump 306 passes through the discharge pipe 302 and extends to the inside of the discharge pipe 302. The air pump 306 provides wind power to transport the dry powder inside the discharge pipe 302 to the air outlet pipe 307, and spray it out from the air outlet pipe 307 to extinguish the fire.

[0033] Reference Figure 3 , Figure 6 , Figure 7 and Figure 8The adjustment mechanism 4 includes a rotating motor 401 , a ball screw 402 , a moving frame 403 and a mounting frame 404 . The side of the rotating motor 401 is connected to the inner wall of the distribution cabinet 1, and a ball screw 402 is installed at the output end of the rotating motor 401. The end of the ball screw 402 away from the rotating motor 401 is installed in the slot of the inner wall of the distribution cabinet 1, and is rotatably connected to the inner wall of the distribution cabinet 1. A slide bar 17 is also provided in the distribution cabinet 1, and the slide bar 17 is parallel to the ball screw 402. The movable frame 403 is installed on the ball screw 402 and the slide bar, and the movable frame 403 is threadedly connected to the ball screw 402. The ball screw 402 is rotated to drive the movable frame 403 to move on the ball screw 402 and the slide bar 17. The slide bar 17 is slidably connected to the movable frame 403. The slide bar 17 can limit the moving trajectory of the movable frame 403 to avoid the rotation of the movable frame 403 during movement, thereby ensuring the stability of the movement of the movable frame 403.

[0034] Please pay attention to Figure 7 , Figure 8 Two hydraulic rods 405 are installed on the inner top wall of the mobile frame 403, and the telescopic end of each hydraulic rod 405 is movably hinged with a mobile seat 406, and the bottom surface of each mobile seat 406 is in contact with the upper surface of the mounting frame 404. A slider 18 is installed on the bottom surface of each mobile seat 406, and two slide grooves 19 are provided on the upper surface of the mounting frame 404. Each slider 18 is slidably connected to the inside of the slide groove 19. The shape of the slider 18 is T-shaped, and the shape of the slide groove 19 matches the shape of the slider 18. The installation of the slider 18 and the slide groove 19 plays a role in limiting the moving trajectory of the mounting frame 404, thereby avoiding the phenomenon that the mounting frame 404 deviates from the moving trajectory during movement as much as possible, thereby ensuring the stability of the movement of the mounting frame 404.

[0035] The discharge pipe 302 is retractable to adapt to the movement of the movable frame 403 , and one end of the discharge pipe 302 disposed in the power distribution cabinet 1 passes through the mounting frame 404 and extends to the bottom of the mounting frame 404 , on which the air pump 306 is mounted.

[0036] Please pay attention to Figure 1 A lock block 11 is provided on the side of the cabinet door of the distribution cabinet 1, and a lock frame 12 cooperating with the lock block 11 is provided on the side of the main body of the distribution cabinet 1. The lock block 11 and the lock frame 12 cooperate with each other to ensure the closed use of the distribution cabinet 1, avoid the phenomenon of the distribution cabinet 1 opening by itself, and thus ensure the stability of the distribution cabinet 1.

[0037] Please pay attention to Figure 4 Four supporting feet 5 are provided at the outer bottom of the power distribution cabinet 1, and a mounting plate 6 is provided at the other end of the supporting feet 5. The mounting plate 6 is fixedly mounted on the platform by screws to ensure the stability of the power distribution cabinet 1.

[0038] Please pay attention to Fig. 9 Two cooling fans 7 are installed at the inner bottom of the power distribution cabinet 1. A second dustproof net 10 is installed outside the power distribution cabinet 1 where the cooling fans 7 are located. The second dustproof net 10 completely covers the area where the two cooling fans 7 are installed to prevent dust from entering. A plurality of evenly arranged cooling ports 8 are provided on the side of the power distribution cabinet 1. A first dustproof net 9 is installed outside the power distribution cabinet 1 corresponding to the cooling ports 8. The power distribution cabinet 1 has a good heat dissipation effect inside and prevents dust from entering.

[0039] Working principle: When in use, the worker first uses bolts to fix the mounting plate 6 on the ground to ensure the stability of the distribution cabinet 1. During the operation of the distribution cabinet 1, the wind provided by the cooling fan 7 is used to dissipate the heat of the distribution cabinet 1. When a fire occurs inside the distribution cabinet 1, the camera 202 obtains the specific location of the fire in the distribution cabinet 1. The camera 202 and the smoke sensor 201 transmit the signal to the controller 204 through the A / D converter 206, so that the controller 204 controls the fire extinguishing mechanism 3 and the regulating mechanism 4 to operate respectively. At the same time, the controller 204 uploads the information of the fire to the terminal through the wireless transmission module 205, and turns on the warning light 207 and the buzzer 208 to remind the workers that there is a fire inside the distribution cabinet 1. When the fire extinguishing mechanism 3 is started, it is opened by the solenoid valve 303, and the power provided by the rotating motor 304 is used to drive the screw conveying rod 305 to rotate, so that the screw conveying rod 305 can put the material in the storage box 301. The dry powder is transported to the inside of the discharge pipe 302, and then the wind force provided by the air pump 306 is used to spray the dry powder inside the discharge pipe 302 into the inside of the distribution cabinet 1, so as to extinguish the fire inside the distribution cabinet 1 as soon as possible. At the same time, according to the specific location of the fire obtained by the camera, the controller 204 controls the power provided by the rotating motor 401 to drive the ball screw 402 to rotate, so that the ball screw 402 drives the moving frame 403 to move, and then the moving frame 403 moves to the top of the fire, and then the power provided by the two hydraulic rods 405 is used to move the mounting frame 404 up and down. When the extension and retraction degrees of the two hydraulic rods 405 are different, the moving seat 406 moves in the slide groove 19 through the slider 18, so as to adjust the angle of the mounting frame 404, so that the outlet of the discharge pipe 302 is aligned with the location of the fire, so as to accurately extinguish the fire at the location of the fire, thereby reducing the damage to the distribution cabinet 1 due to the fire and avoiding the explosion of the distribution cabinet.

[0040] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. An explosion-proof positive pressure distribution cabinet, comprising a distribution cabinet body (1), characterized in that: The power distribution cabinet (1) is provided with a monitoring mechanism (2), a fire extinguishing mechanism (3) and a regulating mechanism (4). The monitoring mechanism (2) comprises a monitoring module, a control module and an output module, wherein the monitoring module is used to monitor the internal environmental state of the power distribution cabinet (1), the control module is used to receive signals from the monitoring module and convert and send the signals to a terminal, and the output module is used to output a warning signal according to the internal environmental state of the power distribution cabinet (1) monitored by the monitoring module; The control module is electrically connected to the fire extinguishing mechanism (3) and the regulating mechanism (4); The fire extinguishing mechanism (3) is connected to the regulating mechanism (4), and the location of the fire source is accurately obtained through the monitoring module. Accurate fire extinguishing is achieved based on the control of the regulating mechanism (4) and the fire extinguishing mechanism (3) by the control module.

2. The explosion-proof positive pressure distribution cabinet according to claim 1, characterized in that: The monitoring module comprises a smoke sensor (201) and a camera (202), and the smoke sensor (201) and the camera (202) are both mounted on the inner top wall of the power distribution cabinet (1); the control module is arranged in a placement box (203), and comprises a controller (204), a wireless transmission module (205), and an A / D converter (206); the output module comprises a warning light (207) and a buzzer (208); and the controller (204) is respectively connected to the smoke sensor (201), the camera (202), the wireless transmission module (205), the A / D converter (206), the warning light (207), and the buzzer (208) through wires.

3. The explosion-proof positive pressure distribution cabinet according to claim 1, characterized in that: The fire extinguishing mechanism comprises a material storage box (301), a material discharge pipe (302), a solenoid valve (303), an air pump (306) and an air outlet pipe (307); one end of the material discharge pipe (302) extends into the material storage box (301) and the other end extends into the power distribution cabinet (1); the material storage box (301) is installed on the top of the power distribution cabinet (1); the solenoid valve (303) is installed on the material discharge pipe (302) near the material storage box (301); An air outlet pipe (307) is provided on the side wall of one end of the discharge pipe (302) extending to the inside of the power distribution cabinet (1); the output end of the air pump (306) is connected to one end of the air outlet pipe (307); the end of the air outlet pipe (307) away from the air pump (306) is connected to the discharge pipe (302); the fire extinguishing material inside the discharge pipe (302) is blown out from the port of the air outlet pipe (307) through the air pump (306).

4. The explosion-proof positive pressure distribution cabinet according to claim 3 is characterized in that: A rotating motor (304) is arranged inside the material storage box (301), and the rotating motor (304) is installed in a protective shell (15). A spiral conveying rod (305) is installed at the output end of the rotating motor (304), and a bearing seat (16) for the spiral output rod (305) to be used stably is provided on the spiral output rod (305). One end of the spiral output rod (305) away from the rotating motor (304) is arranged at the end of the discharge pipe (302).

5. The explosion-proof positive pressure distribution cabinet according to claim 1, characterized in that: The regulating mechanism (4) comprises a rotating motor (401), a ball screw (402), a movable frame (403) and a mounting frame (404); one end of the ball screw (402) is connected to the output end of the rotating motor (401), and the other end is arranged in a slot hole on the inner wall of the power distribution cabinet (1); the rotating motor is mounted on the inner wall of the power distribution cabinet (1); and a sliding rod is also arranged in the power distribution cabinet (1) at the same height and parallel to the ball screw (402). (17), the movable frame (403) is installed through the slide bar (17) and the ball screw (402), the ball screw (402) is threadedly connected to the movable frame (403), the movable frame (403) is slidably connected to the slide bar (17), a mounting frame (404) is provided on the movable frame (403), the mounting frame (404) is connected to the discharge pipe (302), and the air pump (306) is arranged on the mounting frame (404).

6. The explosion-proof positive pressure distribution cabinet according to claim 4, characterized in that: The movable frame (403) is connected to the mounting frame (404) via a hydraulic rod (405) and a movable seat (406); two hydraulic rods (405) are provided, one end of each hydraulic rod (405) is installed on the movable frame (403), and the other end is connected to the movable seat (406); a sliding block (18) is provided on the movable seat (406), and the sliding block (18) is slidably connected to a sliding groove (19) on the mounting frame (404).

7. The explosion-proof positive pressure distribution cabinet according to claim 1, characterized in that: Four supporting legs (5) are installed at the bottom of the power distribution cabinet (1), and a mounting plate (6) is installed on the bottom surface of each supporting leg (5).

8. The explosion-proof positive pressure distribution cabinet according to claim 1, characterized in that: Two cooling fans (7) are installed on the inner bottom of the power distribution cabinet (1); a first dustproof net (9) is provided on the outer bottom surface of the power distribution cabinet (1); and heat dissipation openings (8) arranged at equal distances are provided on the side of the power distribution cabinet (1). A second dustproof net (10) is provided on the outside of one side of the power distribution cabinet (1) on which the heat dissipation openings (8) are provided, and the second dustproof net (10) covers all the heat dissipation openings (8).

9. The explosion-proof positive pressure distribution cabinet according to claim 1, characterized in that: A locking block (11) and a locking frame (12) are respectively installed on the side surfaces of the power distribution cabinet (1), and the locking block (11) is clamped inside the locking frame (12).

10. The explosion-proof positive pressure distribution cabinet according to claim 1, characterized in that: The upper surface of the material storage box (301) is connected to a feed pipe (13), and the outer surface of the feed pipe (13) is threadedly connected to a box cover (14).

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