Mining explosion-proof high-voltage vacuum power distribution device

Abstract

The utility model relates to the technical field of power distribution cabinets, in particular to a mining flame-proof high-voltage vacuum power distribution device, which comprises a shell and a base, the upper end of the base is fixedly connected with the shell, the lower end of the base is fixedly connected with a plurality of groups of supporting blocks, the outer wall of the shell is provided with a sealing device, and the upper end of the base is provided with a protection device. According to the mining explosion-proof high-voltage vacuum power distribution device, through cooperation of the sealing device and the shell, the bolt is rotated, so that the bolt is in threaded connection with the base, the bolt abuts against the through hole plate, the square plate is fixed, meanwhile, the space between the shell and the high-voltage power distribution box is vacuumized through the vacuum pump, and a vacuum protection layer is arranged outside the high-voltage power distribution cabinet; the high-voltage distribution box can be sealed, dust entering the high-voltage distribution box can be reduced, and the probability of occurrence of explosion can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of power distribution cabinets, in particular to a mine-used explosion-proof high-voltage vacuum power distribution device. Background Art

[0002] Mine high-voltage distribution cabinet is suitable for use in coal mines with dangerous environments such as gas and coal dust explosions or harsh environments on the ground. It can also be used in harsh environments such as metallurgical mines, open-pit coal mines, ports and docks, coal preparation plants, power plants, etc.

[0003] For example, a mine-use explosion-proof high-voltage vacuum power distribution device with the authorization announcement number "CN220797570U" ​​has a controller connected to a distance sensor installed in the power distribution device, and the controller is connected to an actuating mechanism corresponding to the switch, which has the advantages of a protective mechanism and improved power distribution safety. However, when the device is in use, there will be a lot of dust in the mine, but the device is not convenient for dustproofing the inside of the equipment, which makes it easy for dust to enter the inside of the device. When there is a lot of dust inside the high-voltage distribution box, it is easy to cause an explosion. At the same time, the device is supported by springs when performing shock absorption, but the springs are easily deformed when hit, resulting in poor support effect of the device. Utility Model Content

[0004] The utility model aims to solve the problems that dust easily enters the device and the supporting effect is poor, and proposes a mine flameproof high-voltage vacuum power distribution device.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A mine-use explosion-proof high-voltage vacuum power distribution device is designed, comprising a shell and a base, wherein the upper end of the base is fixedly connected to the shell, the lower end of the base is fixedly connected to multiple groups of support blocks, the outer wall of the shell is provided with a closing device, the upper end of the base is provided with a protective device, the rear end of the shell is fixedly connected to multiple groups of straight pipes, the upper end of the base is fixedly connected to a vacuum pump, the suction end of the vacuum pump is fixedly connected to the shell, the outer wall of the vacuum pump is fixedly connected to an exhaust pipe, and one end of the exhaust pipe is fixedly connected to a protective cover.

[0007] Preferably, the closing device includes a right-angle plate and a cross block, one end of the cross blocks on both sides are fixedly connected to the shell, the cross blocks are movably connected to the two right-angle plates through bearings, one end of the right-angle plates on both sides are fixedly connected to the square plate, the front end of the square plate is fixedly connected to a handle, the outer wall of the square plate is tightly pressed against the shell through a rubber strip, the front end of the square plate is fixedly connected to a through-hole plate, the through-hole plate is slidably connected to the bolt through a through hole opened on the surface, and the lower end of the bolt is threadedly connected to the base.

[0008] Preferably, one end of the straight pipe is fixedly connected to the high-voltage distribution box, the front end of the high-voltage distribution box is movably connected to the sliding door through a hinge, the outer wall of the sliding door is fixedly connected to a handle, and the lower end of the high-voltage distribution box is fixedly connected to the base.

[0009] Preferably, the protective device includes a sleeve and a sliding rod, the lower ends of the multiple sleeves are fixedly connected to the base, the inner walls of the sleeves are respectively slidably connected to the inner walls of the multiple sliding rods, the lower ends of the multiple sliding rods are fixedly connected to a piston, and the outer wall of the piston is slidably connected to the inner wall of the sleeve.

[0010] Preferably, the upper ends of the plurality of sliding rods are fixedly connected to the top plate, and the pistons are made of rubber.

[0011] Preferably, the inner wall of the straight pipe fits with the electric wire, one end of the electric wire inside the straight pipe is connected to the inside of the high-voltage distribution box, and the inside of the high-voltage distribution box is fixedly connected to the circulation pipe.

[0012] The utility model proposes a flameproof high-voltage vacuum distribution device for mining, which has the following beneficial effects: through the cooperation of the closing device and the shell, the operator uses the handle to pull the square plate to a state of being tightly against the shell, and the rubber strip can make the square plate and the shell sealed, and at the same time the operator presses the bolt downward to make the lower end of the bolt fit into the threaded hole on the surface of the base, and at the same time rotates the bolt to make the bolt threadedly connected to the base, so that the bolt is tightly against the through-hole plate to fix the square plate, and at the same time, the vacuum pump vacuumizes the space between the shell and the high-voltage distribution box, so that the outside of the high-voltage distribution cabinet is provided with a vacuum protective layer, so that even if a fire occurs inside, it will be extinguished by the vacuum layer to prevent the spread of the fire. By sealing the high-voltage distribution box and reducing the entry of dust, the probability of explosion can be reduced.

[0013] The protection device and the top plate cooperate with each other. In the mining area, there will be rockfalls and other situations. When there are rockfalls from above, the rockfalls will fall onto the surface of the top plate, causing the top plate to drive the four slide bars to move downward synchronously. The slide bar can drive the piston to move, causing the piston to compress the air inside the sleeve, so that the impact force of the rockfall is reduced. At the same time, the upper end of the top plate is arc-shaped, so that the rockfall will slide to both sides after falling. Under the protection of the outer shell, it will block the flying stones and the like around, making the internal high-voltage distribution box safer. The compressed air can increase the range of impact force, make the support effect of the device better, and reduce the probability of explosion due to impact. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model;

[0015] Figure 2 for Figure 1 Front view of

[0016] Figure 3 for Figure 1 Rear view;

[0017] Figure 4 for Figure 1 Front cross-sectional view of

[0018] Figure 5 for Figure 1 Partial side view of the cross section;

[0019] Figure 6 for Figure 3 Schematic diagram of part A;

[0020] Figure 7 This is a top view of the circulation pipe.

[0021] In the figure: 1. outer shell, 2. protective device, 201. sleeve, 202. piston, 203. slide rod, 3. high-voltage distribution box, 4. base, 5. support block, 6. handle, 7. sliding door, 8. top plate, 9. closing device, 901. right-angle plate, 902. horizontal block, 903. bolt, 904. handle, 905. through-hole plate, 906. square plate, 10. straight pipe, 11. protective cover, 12. exhaust pipe, 13. vacuum pump, 14. circulation pipe. DETAILED DESCRIPTION

[0022] The present invention will be further described below with reference to the accompanying drawings:

[0023] Refer to the attached Figure 1-7 : In this embodiment, a mine-use explosion-proof high-voltage vacuum power distribution device includes a shell 1 and a base 4. The upper end of the base 4 is fixedly connected to the shell 1, and the lower end of the base 4 is fixedly connected to multiple groups of support blocks 5. The outer wall of the shell 1 is provided with a closing device 9, and the upper end of the base 4 is provided with a protective device 2. The rear end of the shell 1 is fixedly connected to multiple groups of straight pipes 10. The upper end of the base 4 is fixedly connected to a vacuum pump 13. The vacuum pump 13 can meet the working needs according to actual needs. The suction end of the vacuum pump 13 is fixedly connected to the shell 1, and the outer wall of the vacuum pump 13 is fixedly connected to an exhaust pipe 12. One end of the exhaust pipe 12 is fixedly connected to a protective cover 11. The protective cover 11 can protect the exhaust pipe 12 to prevent debris from entering the exhaust pipe 12.

[0024] One end of the straight pipe 10 is fixedly connected to the high-voltage distribution box 3. The straight pipe 10 can be supported by stainless steel or the like so that the wires can be connected to the inside of the high-voltage distribution box 3. The front end of the high-voltage distribution box 3 is movably connected to the sliding door 7 through a hinge. The sliding door 7 and the high-voltage distribution box 3 are sealed by a rubber strip. The outer wall of the sliding door 7 is fixedly connected to a handle 6. The lower end of the high-voltage distribution box 3 is fixedly connected to the base 1. The upper ends of the multiple groups of slide rods 203 are all fixedly connected to the top plate 8. The piston 202 is made of rubber. The inner wall of the straight pipe 10 fits the wires, and the wires inside the straight pipe 10 are sealed. One end is connected to the interior of the high-voltage distribution box 3, and the interior of the high-voltage distribution box 3 is fixedly connected to the circulation pipe 14. The circulation pipe 14 injects cold air into the interior through one end, and then discharges it through the other end of the circulation pipe 14 to complete the circulation process. The low temperature can be transmitted to the interior of the high-voltage distribution box 3 through the outer wall of the circulation pipe 14, so that the interior of the high-voltage distribution box 3 can be cooled. At the same time, the other end of the circulation pipe 14 needs to be connected to the air cooler, and a filter needs to be installed at the air inlet of the air cooler to filter dust. The model of the air cooler can meet the work needs according to actual needs.

[0025] The closing device 9 includes a right-angle plate 901 and a cross block 902. One end of the cross blocks 902 on both sides are fixedly connected to the outer shell 1. The cross blocks 902 are movably connected to the two right-angle plates 901 through bearings. The right-angle plates 901 on both sides can support the square plate 906 for rotation. One end of the right-angle plates 901 on both sides is fixedly connected to the square plate 906. The front end of the square plate 906 is fixedly connected to a handle 904. The outer wall of the square plate 906 is tightly pressed against the outer shell 1 through a rubber strip. The front end of the square plate 906 is fixedly connected to a through-hole plate 905. The through-hole plate 905 is slidably connected to the bolt 903 through a through hole opened on the surface. The bolt 903 can fix the position of the square plate 906. The lower end of the bolt 903 is threadedly connected to the base 4.

[0026] The protective device 2 includes a sleeve 201 and a slide rod 203. The lower ends of the multiple sleeves 201 are fixedly connected to the base 4. There are four sleeves 201. The inner walls of the sleeves 201 are respectively slidably connected to the inner walls of the multiple slide rods 203. The four slide rods 203 can slide inside the four sleeves 201. At the same time, the piston 202 can move synchronously with the slide rod 203, so that the piston 202 can compress the air inside the sleeve 201, so that the four slide rods 203 can have flexible support. The lower ends of the multiple slide rods 203 are fixedly connected to the piston 202, and the outer wall of the piston 202 is slidably connected to the inner wall of the sleeve 201.

[0027] Working principle:

[0028] When using the flameproof high-voltage vacuum distribution cabinet:

[0029] The operator uses the handle 904 to move the square plate 906 to a state of being tightly against the shell 1. Under the action of the rubber strip, the square plate 906 and the shell 1 can be sealed. At the same time, the operator presses the bolt 903 downward to make the lower end of the bolt 903 fit into the threaded hole on the surface of the base 4, and at the same time rotates the bolt 903 to make the bolt 903 threadedly connected to the base 4, so that the bolt 903 is tightly pressed against the through-hole plate 905 to fix the square plate 906. At the same time, the operator turns on the external power supply of the vacuum pump 13 and starts the vacuum pump 13 to vacuum the space between the shell 1 and the high-voltage distribution box 3, so that the outside of the high-voltage distribution cabinet 3 is provided with a vacuum protective layer. Even if a fire occurs inside, it will be extinguished by the vacuum layer to prevent the spread of the fire. At the same time, the shell 1 can effectively reduce the entry of dust into the interior and reduce the probability of explosion.

[0030] Impact process:

[0031] In the mining area, there will be rockfalls and the like. When there are rockfalls from above, the rockfalls will fall onto the surface of the top plate 8, causing the top plate 8 to drive the four slide bars 203 to move downward synchronously. The slide bars 203 can drive the piston 202 to move, causing the piston 202 to compress the air inside the sleeve 201, thereby reducing the impact force of the rockfalls. At the same time, the upper end of the top plate 8 is arc-shaped, so that the rockfalls will slide to both sides after falling. Under the protection of the outer shell 1, the flying stones and the like will be blocked, making the internal high-voltage distribution box 3 safer and reducing the probability of explosion.

[0032] While the present invention has been shown and described with reference to preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A flameproof high-voltage vacuum power distribution device for mining, comprising a housing (1) and a base (4), wherein the upper end of the base (4) is fixedly connected to the housing (1), and characterized in that: The lower end of the base (4) is fixedly connected to a plurality of support blocks (5); the outer wall of the shell (1) is provided with a closing device (9); the upper end of the base (4) is provided with a protective device (2); the rear end of the shell (1) is fixedly connected to a plurality of straight pipes (10); the upper end of the base (4) is fixedly connected to a vacuum pump (13); the suction end of the vacuum pump (13) is fixedly connected to the shell (1); the outer wall of the vacuum pump (13) is fixedly connected to an exhaust pipe (12); one end of the exhaust pipe (12) is fixedly connected to a protective cover (11).

2. The flameproof high-voltage vacuum power distribution device for mining according to claim 1, characterized in that: The closure device (9) comprises a right-angle plate (901) and a transverse block (902), one end of each of the transverse blocks (902) on both sides is fixedly connected to the housing (1), the transverse block (902) is movably connected to the two right-angle plates (901) via bearings, one end of each of the right-angle plates (901) on both sides is fixedly connected to a square plate (906), the front end of the square plate (906) is fixedly connected to a handle (904), the outer wall of the square plate (906) is pressed against the housing (1) via a rubber strip, the front end of the square plate (906) is fixedly connected to a through-hole plate (905), the through-hole plate (905) is slidably connected to a bolt (903) via a through-hole provided on the surface, and the lower end of the bolt (903) is threadedly connected to the base (4).

3. The flameproof high-voltage vacuum power distribution device for mining according to claim 1, characterized in that: One end of the straight pipe (10) is fixedly connected to the high-voltage distribution box (3); the front end of the high-voltage distribution box (3) is movably connected to the sliding door (7) via a hinge; the outer wall of the sliding door (7) is fixedly connected to a handle (6); and the lower end of the high-voltage distribution box (3) is fixedly connected to the base (4).

4. The flameproof high-voltage vacuum power distribution device for mining according to claim 1, characterized in that: The protective device (2) comprises a sleeve (201) and a sliding rod (203), the lower ends of the plurality of sleeves (201) are fixedly connected to the base (4), the inner walls of the sleeves (201) are respectively slidably connected to the inner walls of the plurality of sliding rods (203), the lower ends of the plurality of sliding rods (203) are fixedly connected to a piston (202), and the outer wall of the piston (202) is slidably connected to the inner wall of the sleeve (201).

5. The flameproof high-voltage vacuum power distribution device for mining according to claim 4, characterized in that: The upper ends of the plurality of sliding rods (203) are fixedly connected to the top plate (8), and the piston (202) is made of rubber.

6. The flameproof high-voltage vacuum power distribution device for mining according to claim 1, characterized in that: The inner wall of the straight pipe (10) is in contact with the electric wire, one end of the electric wire inside the straight pipe (10) is connected to the inside of the high-voltage distribution box (3), and the inside of the high-voltage distribution box (3) is fixedly connected to the circulation pipe (14).

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