An explosion-proof protection box for electrical equipment

Abstract

The invention relates to the technical field of electrical equipment, and discloses an explosion-proof protection box for electrical equipment, comprising a box body and a top cover, and also comprising a fixing device, a cooling device, a fire extinguishing device and a pressure reducing device; the fixing device comprises a fixing plate, a bidirectional screw, a movable plate, a rotating plate, a fixing block, a bevel gear set and an elastic telescopic plate, the fixing plate is fixedly connected to the inner wall of the box body, the bidirectional screw is rotatably connected to the inner wall of the fixing plate, the movable plate is threadedly connected to the surface of the bidirectional screw, the rotating plate is rotatably connected to the surface of the movable plate, the fixed plate is rotatably connected to the surface of the rotating plate, the bevel gear set is fixedly connected to the right end of the bidirectional screw, and the elastic telescopic plate is fixedly connected to the surface of the fixing block; the cooling device is arranged on the inner wall of the elastic telescopic plate, and the fire extinguishing device is arranged on the inner wall of the box body. The invention has the function of clamping and fixing the electrical equipment.

Description

Technical Field

[0001] The invention relates to the technical field of electrical equipment, in particular to an explosion-proof protection box for electrical equipment. Background Art

[0002] When electrical equipment is overloaded, short-circuited, aged or worn, it may cause the electrical equipment to explode. Therefore, some electrical equipment that is prone to accidents will be placed in explosion-proof boxes.

[0003] The patent with application number CN201710335494.2 relates to the technical field of electrical equipment protection devices, in particular, an explosion-proof protection device for electrical equipment, including an explosion-proof box, wherein a first plate is arranged around the inside of the explosion-proof box, the first plate is hollow inside, and the first plate is filled with an inert gas, a second plate is arranged inside the first plate, the second plate is provided with a plurality of through holes, sliders are arranged at both upper and lower ends of the second plate, the sliders are placed in a slide groove provided inside the explosion-proof box, a plurality of conical convex thorns are arranged on a side of the second plate close to the first plate, and the second A plurality of springs are arranged between the plate and the first plate, a plurality of air holes are opened at the bottom of the explosion-proof box, and a suction fan is arranged at the bottom of the explosion-proof box, and the suction fan is connected to the power supply, which can effectively prevent the explosion of the battery, and can timely extinguish the exploded battery and decompose the force generated by the explosion in time, effectively protecting people's safety. However, when this device is moved, the internal electrical equipment will shake, causing the electrical equipment to collide with the inner wall of the explosion-proof box, thereby causing the electrical equipment to be damaged. Therefore, an explosion-proof protection box for electrical equipment is proposed to solve the above-mentioned problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide an explosion-proof protection box for electrical equipment in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: an explosion-proof protection box for electrical equipment, including a box body and a top cover, and also including a fixing device, a cooling device, a fire extinguishing device and a pressure reducing device; the fixing device includes a fixing plate, a bidirectional screw, a movable plate, a rotating plate, a fixing block, a bevel gear set and an elastic telescopic plate, the fixing plate is fixedly connected to the inner wall of the box body, the bidirectional screw is rotatably connected to the inner wall of the fixing plate, the movable plate is threadedly connected to the surface of the bidirectional screw, the rotating plate is rotatably connected to the surface of the movable plate, the fixing block is rotatably connected to the surface of the rotating plate, the bevel gear set is fixedly connected to the right end of the bidirectional screw, and the elastic telescopic plate is fixedly connected to the surface of the fixing block; the cooling device is arranged on the inner wall of the elastic telescopic plate The fire extinguishing device is arranged on the inner wall of the box, and the pressure reducing device is arranged on the inner wall of the top cover; the bottom of the top cover is rotatably connected with the inner wall of the box, and the electrical equipment is placed in the box. At this time, the bidirectional screw is rotated, and the bidirectional screw will drive the two movable plates to gather together through the thread, and the movable plate will push the rotating plate to rotate, and the rotating plate will drive the two fixed blocks to separate. At this time, the fixed block will drive the four elastic telescopic plates to gather together, and the elastic telescopic plates will gather together and clamp the electrical equipment in the box, so that the electrical equipment will not move inside the box, and prevent the electrical equipment from moving and colliding with the inner wall of the box when the box is displaced, thereby reducing the probability of damage to the electrical equipment. At the same time, the movable elastic telescopic plates can clamp electrical equipment of different sizes, thereby improving the scope of application of the device.

[0006] Preferably, the cooling device includes a through hole and a ventilation frame, the number of the through holes is multiple, and the multiple through holes are opened at the bottom of the box body, and the ventilation frame is fixedly connected to the bottom of the box body; the cooling device also includes a baffle, a pressure rod and an impeller, the baffle is rotatably connected to the inner wall of the through hole by a torsion spring, the pressure rod is slidably connected to the inner wall of the bottom of the elastic telescopic plate by a spring, and the impeller is rotatably connected to the inner wall of the elastic telescopic plate; the bottom end of the pressure rod is in contact with the upper surface of the baffle, and the surface of the pressure rod is in contact with the inner wall of the through hole, so that the coolant can be passed into the through hole through the ventilation frame, and the coolant is allowed to pass through the through hole The cooling liquid enters the elastic expansion plate, so that the temperature of the elastic expansion plate drops and the electrical equipment is cooled, reducing the risk of explosion of the electrical equipment due to high temperature. When the elastic expansion plate moves, it drives the pressure rod to move and insert into the through hole, so that the pressure rod pushes the baffle in the through hole to rotate and open under the action of the spring, so that after the elastic expansion plate moves, it can still ensure that the cooling liquid in the ventilation frame can enter the elastic expansion plate. At the same time, when the cooling liquid enters the elastic expansion plate, the water flow will drive the impeller to rotate, and the rotation of the impeller will drive the impeller above to rotate together, ensuring that the cooling liquid can be relatively fully distributed inside the elastic expansion plate, thereby improving the cooling effect.

[0007] Preferably, the fire extinguishing device includes a fire extinguishing box, a smoke sensor and a discharge pipe, the fire extinguishing box is installed on the inner wall of the box body, the smoke sensor is fixedly connected to the side of the fire extinguishing box away from the box body, and the discharge pipe is fixedly connected to the side of the fire extinguishing box close to the smoke sensor; the fire extinguishing device also includes a transmission rod and a cleaning plate, the transmission rod is fixedly connected to the axis of the impeller, and the cleaning plate is fixedly connected to the end of the transmission rod away from the impeller; the surface of the transmission rod is rotatably connected to the inner wall of the elastic telescopic plate, the smoke sensor is electrically connected to the fire extinguishing box, and the cleaning plate rotates to connect with the discharge pipe away from the fire extinguishing box One end is in contact with each other, and bristles are provided on the side of the cleaning plate close to the fire extinguishing box. When a fire occurs in the electrical equipment in the explosion-proof box, the smoke sensor will detect the smoke and send an electrical signal to the fire extinguishing box to start the fire extinguishing box. The fire extinguishing box will pass the internal carbon dioxide into the box body through the discharge pipe, thereby extinguishing the fire and cooling the electrical equipment to prevent the electrical equipment from exploding after catching fire. At the same time, when the impeller rotates, it will drive the transmission rod to rotate, and the transmission rod will drive the cleaning plate to rotate. The bristles on the cleaning plate will brush away impurities and dust at the discharge pipe to prevent them from clogging the discharge pipe, thereby affecting the discharge effect of carbon dioxide in the fire extinguishing box.

[0008] Preferably, the pressure reducing device includes a moving rod, a pressure plate and a chuck, the moving rod is slidably connected to the inner wall of the top cover, the pressure plate is fixedly connected to the left end of the moving rod, the chuck is fixedly connected to the right end of the moving rod, a spring is sleeved on the surface of the moving rod, and the two ends of the spring are respectively fixedly connected to the right side of the pressure plate and the left side of the top cover, and the left side of the chuck is in contact with the right side of the top cover; the pressure reducing device also includes a sliding rod and a ventilation groove, the sliding rod is slidably connected to the inner wall of the moving rod through a spring, the ventilation groove is opened at the left end of the sliding rod, the surface of the sliding rod is slidably connected to the inner wall of the chuck, and when the top cover is closed, the moving rod will be driven to move The moving rod will drive the pressure plate to move so that the pressure plate is pressed on the top of the electrical equipment, so that the electrical equipment can be limited and fixed in the up and down directions, further improving the fixing effect of the electrical equipment. At the same time, when the fire extinguishing box discharges carbon dioxide to extinguish the fire and cool down, the pressure inside the box will increase. At this time, the pressure will enter the air holes on the moving rod and push the sliding rod to move, so that the air grooves on the sliding rod are squeezed out from the outside, and the air inside the box can be discharged to the outside, thereby reducing the pressure inside the box, preventing the internal pressure of the box from being too high and causing an explosion, and preventing excessive pressure from causing the compressed carbon dioxide in the fire extinguishing box to be unable to be effectively discharged to extinguish the fire and cool down.

[0009] The present invention adopts the above technical solution to bring the following beneficial effects:

[0010] 1. The explosion-proof protection box for electrical equipment puts the electrical equipment into the box through the coordinated operation among the box body, the top cover, the fixed plate, the bidirectional screw, the movable plate, the rotating plate, the fixed block, the bevel gear set, and the elastic telescopic plate. At this time, the bidirectional screw is rotated, and the bidirectional screw will drive the two movable plates to gather together through the thread, and the movable plate will push the rotating plate to rotate, and the rotating plate will drive the two fixed blocks to separate. At this time, the fixed block will drive the four elastic telescopic plates to gather together, and the elastic telescopic plates will gather and clamp the electrical equipment in the box, so that the electrical equipment will not be displaced inside the box, and the electrical equipment will not be moved when the box is displaced, and the electrical equipment will be prevented from moving and colliding with the inner wall of the box, thereby reducing the probability of damage to the electrical equipment.

[0011] 2. The explosion-proof protection box for electrical equipment, through the coordinated operation of the through holes, ventilation frame, baffles, pressure rods and leaves, allows the ventilation frame to pass coolant into the through holes, and the coolant enters the elastic telescopic plate through the through holes, so that the temperature of the elastic telescopic plate drops and the electrical equipment is cooled, reducing the risk of explosion of the electrical equipment due to high temperature; when the elastic telescopic plate moves, it drives the pressure rod to move and insert into the through hole, so that the pressure rod pushes the baffle in the through hole to rotate and open under the action of the spring, so that after the elastic telescopic plate moves, it can still ensure that the coolant in the ventilation frame can enter the elastic telescopic plate; at the same time, when the coolant enters the elastic telescopic plate, the water flow will drive the impeller to rotate, and the rotation of the impeller will drive the upper impeller to rotate together, ensuring that the coolant can be relatively fully distributed inside the elastic telescopic plate, thereby improving the cooling effect.

[0012] 3. The explosion-proof protection box for electrical equipment operates through the coordinated operation of the fire extinguishing box, smoke sensor, discharge pipe, transmission rod and cleaning plate. When a fire occurs in the electrical equipment in the explosion-proof box, the smoke sensor will detect the smoke and send an electrical signal to the fire extinguishing box to start the fire extinguishing box. The fire extinguishing box will pass the internal carbon dioxide into the box through the discharge pipe, thereby extinguishing the fire and cooling the electrical equipment to prevent the electrical equipment from exploding after catching fire. At the same time, when the impeller rotates, it will drive the transmission rod to rotate, and the transmission rod will drive the cleaning plate to rotate. The bristles on the cleaning plate will brush away the impurities and dust at the discharge pipe to prevent them from clogging the discharge pipe, thereby affecting the discharge effect of carbon dioxide in the fire extinguishing box.

[0013] 4. The explosion-proof protection box for electrical equipment, through the coordinated operation of the moving rod, the pressure plate, the chuck, the slide bar, and the air vent, will drive the moving rod to move when the top cover is closed, and the moving rod will drive the pressure plate to move, so that the pressure plate is pressed on the top of the electrical equipment, so that the electrical equipment can be limited and fixed in the up and down directions, further improving the fixing effect of the electrical equipment, and at the same time, when the fire extinguishing box discharges carbon dioxide to extinguish the fire and cool down, the internal pressure of the box will increase. At this time, the pressure will enter the air holes on the moving rod and push the slide bar to move, so that the air vent on the slide bar is squeezed out from the outside, and then the air inside the box can be discharged to the outside, thereby reducing the pressure inside the box, preventing the internal pressure of the box from being too high and then exploding, and preventing the compressed carbon dioxide in the fire extinguishing box from being unable to be effectively discharged due to excessive pressure to extinguish the fire and cool down. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0015] Figure 2 It is a half-section diagram of the box structure of the present invention;

[0016] Figure 3 A half-section view of the fixed block structure of the present invention;

[0017] Figure 4 This is a schematic diagram of the ventilation frame structure of the present invention;

[0018] Figure 5 This is a schematic diagram of the baffle structure of the present invention;

[0019] Figure 6 This is a schematic diagram of the impeller structure of the present invention;

[0020] Figure 7 It is a schematic diagram of the structure of the fire extinguishing box of the present invention;

[0021] Figure 8 It is a half-section view of the movable rod structure of the present invention.

[0022] In the figure: 1. box body; 2. top cover; 3. fixing device; 31. fixing plate; 32. bidirectional screw; 33. moving plate; 34. rotating plate; 35. fixing block; 36. bevel gear set; 37. elastic telescopic plate; 4. cooling device; 41. through hole; 42. ventilation frame; 421. baffle; 422. pressure rod; 423. impeller; 5. fire extinguishing device; 51. fire extinguishing box; 52. smoke sensor; 53. discharge pipe; 531. transmission rod; 532. cleaning plate; 6. pressure reducing device; 61. moving rod; 62. pressure plate; 63. chuck; 631. slide rod; 632. air vent. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figure 1-6 An embodiment of the present invention is: an explosion-proof protection box for electrical equipment, comprising a box body 1 and a top cover 2, and also comprising a fixing device 3, a cooling device 4, a fire extinguishing device 5 and a pressure reducing device 6; the fixing device 3 comprises a fixing plate 31, a bidirectional screw 32, a movable plate 33, a rotating plate 34, a fixing block 35, a bevel gear set 36 and an elastic telescopic plate 37, the fixing plate 31 is fixedly connected to the inner wall of the box body 1, the bidirectional screw 32 is rotatably connected to the inner wall of the fixing plate 31, the movable plate 33 is threadedly connected to the surface of the bidirectional screw 32, the rotating plate 34 is rotatably connected to the surface of the movable plate 33, the fixing block 35 is rotatably connected to the surface of the rotating plate 34, the bevel gear set 36 is fixedly connected to the right end of the bidirectional screw 32, and the elastic telescopic plate 37 is fixedly connected to the surface of the fixing block 35, and the electrical equipment is placed in In the box body 1, the bidirectional screw 32 is rotated at this time, and the bidirectional screw 32 will drive the two movable plates 33 to gather together through the thread, and the movable plate 33 will push the rotating plate 34 to rotate, and the rotating plate 34 will drive the two fixed blocks 35 to separate, and at this time the fixed block 35 will drive the four elastic telescopic plates 37 to gather together, and the elastic telescopic plates 37 will gather together and clamp the electrical equipment in the box body 1; the cooling device 4 is arranged on the inner wall of the elastic telescopic plate 37, the fire extinguishing device 5 is arranged on the inner wall of the box body 1, and the pressure reducing device 6 is arranged on the inner wall of the top cover 2; the bottom of the top cover 2 is rotatably connected to the inner wall of the box body 1, the electrical equipment moves and collides with the inner wall of the box body 1, reducing the probability of damage to the electrical equipment, and at the same time, the movable elastic telescopic plate 37 can clamp electrical equipment of different sizes, thereby improving the scope of application of the device.

[0025] The cooling device 4 includes a through hole 41 and a ventilation frame 42. The number of through holes 41 is multiple, and the multiple through holes 41 are opened at the bottom of the box body 1. The ventilation frame 42 is fixedly connected to the bottom of the box body 1. The cooling liquid can be passed into the through hole 41 through the ventilation frame 42, and the cooling liquid enters the elastic telescopic plate 37 through the through hole 41, so that the temperature of the elastic telescopic plate 37 drops and the electrical equipment is cooled, reducing the risk of explosion of the electrical equipment due to high temperature; the cooling device 4 also includes a baffle 421, a pressure rod 422 and an impeller 423. The baffle 421 is rotatably connected to the inner wall of the through hole 41 through a torsion spring, the pressure rod 422 is slidably connected to the inner wall of the bottom of the elastic telescopic plate 37 through a spring, and the impeller 423 is rotatably connected to the elastic telescopic plate 37. The inner wall of the expansion plate 37; the bottom end of the pressure rod 422 is in contact with the upper surface of the baffle 421, and the surface of the pressure rod 422 is in contact with the inner wall of the through hole 41. When the elastic expansion plate 37 moves, the pressure rod 422 is driven to move and insert into the through hole 41, so that the pressure rod 422 pushes the baffle 421 in the through hole 41 to rotate and open under the action of the spring, so that after the elastic expansion plate 37 moves, it can still ensure that the coolant in the ventilation frame 42 can enter the elastic expansion plate 37. At the same time, when the coolant enters the elastic expansion plate 37, the water flow will push the impeller 423 to rotate, and the rotation of the impeller 423 will drive the upper impeller 423 to rotate together, ensuring that the coolant can be relatively fully distributed inside the elastic expansion plate 37, thereby improving the cooling effect.

[0026] The working principle is to put the electrical equipment into the box body 1, and then rotate the bidirectional screw 32. The bidirectional screw 32 will drive the two movable plates 33 to gather together through the thread, and the movable plate 33 will push the rotating plate 34 to rotate, and the rotating plate 34 will drive the two fixed blocks 35 to separate. At this time, the fixed block 35 will drive the four elastic telescopic plates 37 to gather together, and the elastic telescopic plates 37 will gather and clamp the electrical equipment in the box body 1, so that the electrical equipment will not move inside the box body 1, and prevent the electrical equipment from moving and colliding with the inner wall of the box body 1 when the box body 1 is displaced, thereby reducing the probability of damage to the electrical equipment. At the same time, the movable elastic telescopic plates 37 can clamp electrical equipment of different sizes, thereby improving the application range of the device.

[0027] The cooling liquid can be passed into the through hole 41 through the ventilation frame 42, and the cooling liquid can enter the elastic expansion plate 37 through the through hole 41, so that the temperature of the elastic expansion plate 37 drops and the electrical equipment is cooled, reducing the risk of explosion of the electrical equipment due to high temperature. When the elastic expansion plate 37 moves, it will drive the pressure rod 422 to move and insert into the through hole 41, so that the pressure rod 422 pushes the baffle 421 in the through hole 41 to rotate and open under the action of the spring, so that after the elastic expansion plate 37 moves, it can still ensure that the cooling liquid in the ventilation frame 42 can enter the elastic expansion plate 37. At the same time, when the cooling liquid enters the elastic expansion plate 37, the water flow will drive the impeller 423 to rotate, and the rotation of the impeller 423 will drive the upper impeller 423 to rotate together, ensuring that the cooling liquid can be relatively fully distributed inside the elastic expansion plate 37, thereby improving the cooling effect.

[0028] See also Figure 7-8 On the basis of the above embodiment, in another embodiment of the present invention, the fire extinguishing device 5 includes a fire extinguishing box 51, a smoke sensor 52 and a discharge pipe 53. The fire extinguishing box 51 is installed on the inner wall of the box body 1, the smoke sensor 52 is fixedly connected to the side of the fire extinguishing box 51 away from the box body 1, and the discharge pipe 53 is fixedly connected to the side of the fire extinguishing box 51 close to the smoke sensor 52. When a fire occurs in the electrical equipment in the explosion-proof box, the smoke sensor 52 will detect the smoke and send an electrical signal to the fire extinguishing box 51 to start the fire extinguishing box 51. The fire extinguishing box 51 will pass the internal carbon dioxide into the box body 1 through the discharge pipe 53, so as to extinguish the fire and cool down the electrical equipment to prevent the electrical equipment from exploding after catching fire; the fire extinguishing device 5 also includes a transmission rod 531 and a cleaning plate 532, the transmission rod 531 is fixedly connected to the axis of the impeller 423, and the cleaning plate 532 is fixedly connected to the end of the transmission rod 531 away from the impeller 423; the surface of the transmission rod 531 is rotatably connected to the inner wall of the elastic telescopic plate 37, and the smoke sensor 52 is electrically connected to the fire extinguishing box 51. After the cleaning plate 532 rotates, it contacts the end of the discharge pipe 53 away from the fire extinguishing box 51, and the cleaning plate 532 is provided with bristles on the side close to the fire extinguishing box 51. When the impeller 423 rotates, it will drive the transmission rod 531 to rotate, and the transmission rod 531 will drive the cleaning plate 532 to rotate. The bristles on the cleaning plate 532 will brush away the impurities and dust at the discharge pipe 53 to prevent them from clogging the discharge pipe 53, thereby affecting the discharge effect of carbon dioxide in the fire extinguishing box 51.

[0029] The pressure reducing device 6 includes a moving rod 61, a pressure plate 62 and a chuck 63. The moving rod 61 is slidably connected to the inner wall of the top cover 2, the pressure plate 62 is fixedly connected to the left end of the moving rod 61, and the chuck 63 is fixedly connected to the right end of the moving rod 61. A spring is sleeved on the surface of the moving rod 61, and the two ends of the spring are respectively fixedly connected to the right side of the pressure plate 62 and the left side of the top cover 2. The left side of the chuck 63 is in contact with the right side of the top cover 2. When the top cover 2 is closed, the moving rod 61 is driven to move, and the moving rod 61 drives the pressure plate 62 to move, so that the pressure plate 62 is pressed on the top of the electrical equipment, so that the electrical equipment can be limited and fixed in the up and down directions, further improving the fixing effect of the electrical equipment; the pressure reducing device 6 also includes a slide bar 631 and the air vent 632, the slide bar 631 is slidably connected to the inner wall of the movable rod 61 through a spring, the air vent 632 is opened at the left end of the slide bar 631, and the surface of the slide bar 631 is slidably connected to the inner wall of the chuck 63. When the fire extinguishing box 51 discharges carbon dioxide to extinguish the fire and cool down, the internal pressure of the box body 1 will increase. At this time, the pressure will enter the air vents on the movable rod 61 and push the slide bar 631 to move, so that the air vent 632 on the slide bar 631 is squeezed out from the outside, and then the air inside the box body 1 can be discharged to the outside, thereby reducing the pressure inside the box body 1, preventing the internal pressure of the box body 1 from being too high and then exploding, and also preventing the excessive pressure from causing the compressed carbon dioxide in the fire extinguishing box 51 to be unable to be effectively discharged to extinguish the fire and cool down.

[0030] Working principle: when a fire occurs in the electrical equipment in the explosion-proof box, the smoke sensor 52 will detect the smoke and send an electrical signal to the fire extinguishing box 51 to start the fire extinguishing box 51. The fire extinguishing box 51 will pass the internal carbon dioxide into the interior of the box body 1 through the discharge pipe 53, thereby extinguishing the fire and cooling the electrical equipment to prevent the electrical equipment from exploding after catching fire. At the same time, when the impeller 423 rotates, it will drive the transmission rod 531 to rotate, and the transmission rod 531 will drive the cleaning plate 532 to rotate. The bristles on the cleaning plate 532 will brush away impurities and dust at the discharge pipe 53 to prevent them from clogging the discharge pipe 53, thereby affecting the discharge effect of carbon dioxide in the fire extinguishing box 51.

[0031] When the top cover 2 is closed, it will drive the moving rod 61 to move, and the moving rod 61 will drive the pressure plate 62 to move, so that the pressure plate 62 is pressed on the top of the electrical equipment, so that the electrical equipment can be limited and fixed in the up and down directions, further improving the fixing effect of the electrical equipment. At the same time, when the fire extinguishing box 51 discharges carbon dioxide to extinguish the fire and cool down, the internal pressure of the box body 1 will increase. At this time, the pressure will enter the air vents on the moving rod 61 and push the sliding rod 631 to move, so that the air vents 632 on the sliding rod 631 are squeezed out from the outside, so that the air inside the box body 1 can be discharged to the outside, thereby reducing the pressure inside the box body 1, preventing the internal pressure of the box body 1 from being too high and then exploding, and preventing the excessive pressure from causing the compressed carbon dioxide in the fire extinguishing box 51 to be unable to be effectively discharged to extinguish the fire and cool down.

[0032] The present invention provides an explosion-proof protection box for electrical equipment. There are many methods and ways to implement the technical solution. 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 principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. An explosion-proof protection box for electrical equipment, comprising a box body (1) and a top cover (2), characterized in that: It also includes a fixing device (3), a cooling device (4), a fire extinguishing device (5) and a pressure reducing device (6); The fixing device (3) comprises four groups, which are respectively arranged on the inner side of the side wall of the box body (1). The fixing device (3) comprises a fixing plate (31), a bidirectional screw (32), a movable plate (33), a rotating plate (34), a fixing block (35), a bevel gear set (36) and an elastic telescopic plate (37). The fixing plate (31) is fixedly connected to the inner wall of the box body (1); the bidirectional screw (32) is rotatably connected to the inner wall of the fixing plate (31); the movable plate (33) is threadedly connected to the surface of the bidirectional screw (32); the rotating plate (34) is rotatably connected to the surface of the movable plate (33); the fixing block (35) is rotatably connected to the surface of the rotating plate (34); the bevel gear set (36) is fixedly connected to the right end of the bidirectional screw (32); and the elastic telescopic plate (37) is fixedly connected to the surface of the fixing block (35); The cooling device (4) is arranged on the inner wall of the elastic expansion plate (37), the fire extinguishing device (5) is arranged on the inner wall of the box body (1), and the pressure reducing device (6) is arranged on the inner wall of the top cover (2); The cooling device (4) comprises a through hole (41) and a ventilation frame (42); the through hole (41) is provided in a plurality and the plurality of through holes (41) are provided at the bottom of the box body (1); the ventilation frame (42) is fixedly connected to the bottom of the box body (1); there is cooling liquid in the ventilation frame (42); the cooling liquid can pass through the through hole (41) through the ventilation frame (42), so that the cooling liquid enters the elastic telescopic plate (37); The cooling device (4) further comprises a baffle (421), a pressure rod (422) and an impeller (423); the baffle (421) is rotatably connected to the inner wall of the through hole (41) via a torsion spring; the pressure rod (422) is slidably connected to the inner wall of the bottom of the elastic telescopic plate (37) via a spring; and the impeller (423) is rotatably connected to the inner wall of the elastic telescopic plate (37); The bottom end of the pressure rod (422) contacts the upper surface of the blocking sheet (421), and the surface of the pressure rod (422) contacts the inner wall of the through hole (41).

2. The explosion-proof protection box for electrical equipment according to claim 1, characterized in that: The bottom of the top cover (2) is rotatably connected to the inner wall of the box body (1).

3. An explosion-proof protection box for electrical equipment according to claim 2, characterized in that: The fire extinguishing device (5) comprises a fire extinguishing box (51), a smoke sensor (52) and a discharge pipe (53); the fire extinguishing box (51) is mounted on the inner wall of the box body (1); the smoke sensor (52) is fixedly connected to a side of the fire extinguishing box (51) away from the box body (1); and the discharge pipe (53) is fixedly connected to a side of the fire extinguishing box (51) close to the smoke sensor (52).

4. The explosion-proof protection box for electrical equipment according to claim 3, characterized in that: The fire extinguishing device (5) further comprises a transmission rod (531) and a cleaning plate (532), wherein the transmission rod (531) is fixedly connected to the axis of the impeller (423), and the cleaning plate (532) is fixedly connected to an end of the transmission rod (531) away from the impeller (423).

5. The explosion-proof protection box for electrical equipment according to claim 4, characterized in that: The surface of the transmission rod (531) is rotatably connected to the inner wall of the elastic telescopic plate (37), the smoke sensor (52) is electrically connected to the fire extinguishing box (51), and the cleaning plate (532) contacts one end of the discharge pipe (53) away from the fire extinguishing box (51) after rotation, and a brush is provided on one side of the cleaning plate (532) close to the fire extinguishing box (51).

6. The explosion-proof protection box for electrical equipment according to claim 5, characterized in that: The pressure reducing device (6) comprises a moving rod (61), a pressure plate (62) and a chuck (63); the moving rod (61) is slidably connected to the inner wall of the top cover (2); the pressure plate (62) is fixedly connected to the left end of the moving rod (61); the chuck (63) is fixedly connected to the right end of the moving rod (61); a spring is sleeved on the surface of the moving rod (61); and two ends of the spring are respectively fixedly connected to the right side of the pressure plate (62) and the left side of the top cover (2); and the left side of the chuck (63) is in contact with the right side of the top cover (2).

7. An explosion-proof protection box for electrical equipment according to claim 6, characterized in that: The pressure reducing device (6) further comprises a sliding rod (631) and a venting groove (632); the sliding rod (631) is slidably connected to the inner wall of the moving rod (61) via a spring; the venting groove (632) is provided at the left end of the sliding rod (631); and the surface of the sliding rod (631) is slidably connected to the inner wall of the chuck (63).

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