Prefabricated power distribution cabinet

Abstract

The invention relates to the technical field of power distribution cabinets, and provides a prefabricated power distribution cabinet which comprises a box body, one side of the box body is fixedly connected with a heat dissipation box, one side of the box body is movably sleeved with a cabinet door, one side of the inner wall of the box body is fixedly connected with a main power supply air switch, and one side of the inner wall of the box body is fixedly connected with two rows of air switch fixers located on the main power supply air switch. One side of the main power supply air switch is fixedly connected with a rotating rod, and one end of the outer circular surface of the rotating rod is fixedly connected with a disc. Through the design of the disc and the linkage rod, the groove of the switch sleeve is aligned with the rectangular block, and when the protrusion of the disc extrudes the linkage rod, the linkage rod drives the moving block to move downwards in the movable frame and drives the L-shaped connecting plate to move downwards, so that the air switch is closed before the main power supply air switch is closed; impact of sudden power failure on connected equipment and circuits is reduced, and faults and damage caused by sudden power failure are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and in particular to a prefabricated power distribution cabinet. Background Art

[0002] Prefabricated distribution cabinet is a kind of distribution equipment that is pre-assembled and tested in the factory and then transported to the site for installation. With the improvement of factory automation level, more automated equipment is used in the production of distribution cabinets, such as automatic welding robots, CNC bending machines, etc., which can complete the molding and assembly more quickly and accurately, and combine different functional units into modular components. The use of standardized parts realizes standardized production and modular assembly of components, thereby improving production efficiency and product quality.

[0003] The existing prefabricated distribution cabinets still have some defects: usually, when turning off the distribution box circuit breaker, the small switch should be turned off first and then the main switch, which can reduce the possibility of arc generation, thereby reducing the risk of damage to the trigger and reducing the impact of sudden power outages on connected equipment and circuits, avoiding failures and damage caused by sudden power outages. When opening the distribution box circuit breaker, the main switch should be turned on first and then the branch switch to ensure that the current is restored in sequence, thereby avoiding damage to the equipment and circuits due to large current shocks. However, the existing equipment can only be achieved through manual operation, which is time-consuming and labor-intensive, and may have safety hazards and operational errors that may cause damage to the equipment; in addition, prefabricated distribution cabinets usually face dust problems during on-site installation and use. The existing equipment cannot handle dust during operation, which affects the electrical equipment and cooling system inside the distribution cabinet, affecting the normal operation and cooling efficiency of the equipment. Summary of the invention

[0004] The present invention provides a prefabricated power distribution cabinet to solve the problems raised in the above background technology.

[0005] The technical solution of the present invention is as follows: a prefabricated power distribution cabinet comprises a box body, one side of the box body is fixedly connected to a heat dissipation box, one side of the box body is movably sleeved with a cabinet door, one side of the inner wall of the box body is fixedly connected to a main power circuit breaker, one side of the inner wall of the box body is fixedly connected to two rows of circuit breaker fixtures located at the main power circuit breaker, one side of the main power circuit breaker is fixedly connected to a rotating rod, one end of the outer cylindrical surface of the rotating rod is fixedly connected to a disc, one side of the box body is fixedly connected to a movable frame, the inner side of the movable frame is fixedly connected to a sliding column, and the outer cylindrical surface of the sliding column is movably connected A moving block is sleeved, and both ends of the moving block are fixedly connected to a first spring, the other end of the first spring is fixedly connected to the inner wall of the movable frame, the first spring is movably sleeved with the outer circular surface of the sliding column, one side of the moving block is fixedly connected to a linkage rod, one end of the linkage rod is clamped with the outer edge of the disc, one side of the other end of the linkage rod is movably sleeved with a connecting rod, and the outer circular surface of the connecting rod is movably sleeved with an L-shaped connecting plate, the inner wall of the heat dissipation box is provided with a heat dissipation and dust suction mechanism movably sleeved therewith, and the upper surface of the air switch fixer is provided with a disassembly mechanism fixedly connected thereto.

[0006] Preferably, the heat dissipation and dust suction mechanism includes a fan, one end of the fan is movably connected to the inner wall of the heat dissipation box, the other end of the fan is fixedly connected to the first bevel gear, the inner wall of the heat dissipation box is movably connected to a reciprocating screw, the threaded surface of the reciprocating screw is threadedly connected to a sliding block, the lower surface of the sliding block is fixedly connected to a clamping block, one end of the reciprocating screw is fixedly connected to a screw roller on the threaded surface, one end of the fan is fixedly connected to a fan roller on the outer cylindrical surface, a belt is movably connected to the outer cylindrical surface of the screw roller, and the other end of the belt is movably connected to the fan roller.

[0007] Preferably, a fixing plate is fixedly connected to one side of the inner wall of the box body, a sliding groove is provided on one side of the upper surface of the fixing plate, one end of the blocking block is movably sleeved with the inner wall of the sliding groove, a connecting column is movably sleeved in the middle of the fixing plate, a first rotating column is movably sleeved in the middle of the connecting column, an outer cylindrical surface of the first rotating column is fixedly connected to the second bevel gear, the first bevel gear is meshed with the second bevel gear, one end of the connecting column is fixedly connected to a dust suction bin, one end of the outer cylindrical surface of the first rotating column is fixedly connected to the third bevel gear, the middle of one side of the dust suction bin is movably sleeved with the second rotating column, one end of the second rotating column is fixedly connected to the fourth bevel gear, the third bevel gear is meshed with the fourth bevel gear, the outer cylindrical surface of the second rotating column is fixedly connected with four evenly distributed fan blades, and the other end of the second rotating column is movably sleeved with a dust suction port.

[0008] Preferably, one end of the first rotating column is fixedly connected to the first gear, a rotating rod is movably sleeved in the middle of the upper surface of the box body, an exhaust column is movably sleeved in the middle of one end of the outer cylindrical surface of the rotating rod, one end of the rotating rod is fixedly connected to the second gear, the first gear is meshed with the second gear, the outer cylindrical surface of the exhaust column is fixedly connected to a limiting block, one side of the limiting block is fixedly connected to a third spring, one end of the third spring is fixedly connected to the outer cylindrical surface of the rotating rod, and the outer cylindrical surface of the exhaust column is movably sleeved with the third spring.

[0009] Preferably, a switch sleeve is movably sleeved in the middle of the cabinet door, one end of the outer circular surface of the rotating rod is fixedly connected to four evenly distributed rectangular blocks, one end of the switch sleeve is provided with a fixing groove, four groups of the rectangular blocks are snap-fitted into the fixing groove, and one side of the inner wall of the box body is fixedly connected to a wiring terminal located below the air switch fixer.

[0010] Preferably, the disassembly structure includes a limit bar, both sides of the space switch fixer are fixedly connected to the limit bar, one side of the space switch fixer is fixedly connected to a plurality of evenly distributed second springs, one side of the second spring is fixedly connected to a limit plate, one side of the space switch fixer is movably sleeved with a plurality of evenly distributed space switches, and a clamping block is movably sleeved in the middle of the protrusions on both sides of the space switch.

[0011] Preferably, one end of the sliding block is fixedly connected to a rack, one end of the outer circumferential surface of the connecting column is fixedly connected to a plurality of evenly distributed tooth blocks, and the tooth surface of the rack is meshed with the tooth blocks.

[0012] Preferably, a rectangular groove is provided on one side of the L-shaped connecting plate, and the switch of the open circuit board matches the shape of the rectangular groove.

[0013] Preferably, one end of the linkage rod is a right-angled trapezoid, one end of the linkage rod is matched with a recessed portion of an outer edge of a disk, and the fixing block protruding outwardly of the disk is a rectangular parallelepiped.

[0014] Preferably, the dust suction port is a right-angled trapezoidal rotating body, a plurality of evenly distributed filters are provided at one end of the dust suction port close to the fan blades, a plurality of evenly distributed air outlets are provided on one side of the heat dissipation box, and a plurality of evenly distributed air outlets are provided on the outer circular surface of the exhaust column.

[0015] The working principle and beneficial effects of the present invention are: 1. The present invention aligns the groove of the switch sleeve with the rectangular block through the design of the disc and the linkage rod. When the protrusion of the disc squeezes the linkage rod, the linkage rod drives the moving block to move downward in the movable frame, and the linkage rod drives the L-shaped connecting plate to move downward, so that the air switch is closed before the main power switch is closed, reducing the impact of sudden power failure on the connected equipment and circuits, and avoiding failures and damage caused by sudden power failure. When the power of the equipment needs to be started, the switch sleeve is rotated to fully open the main power switch, and the depression at the outer edge of the disc drives the linkage rod to move upward, and the linkage rod drives the L-shaped connecting plate to move upward, so that the small switch is opened after the main power switch is opened, ensuring that the current is restored in sequence, thereby avoiding damage to the equipment and circuit due to the impact of large current; the present invention can press the switch through the design of the disassembly mechanism, so that the clamping block slides to the inside of the switch, and under the action of the limit bar, the second spring and the limit plate, the switch is easily disassembled, which simplifies the disassembly process, saves maintenance time and reduces safety hazards.

[0016] 2. The present invention adopts the design of the heat dissipation and dust collection mechanism, and the fan operates normally. The fan drives the fan roller and the first bevel gear to rotate. The fan roller drives the screw roller to rotate through the belt, and the screw roller drives the reciprocating screw to rotate. The first bevel gear drives the second bevel gear to rotate, and the second bevel gear drives the first rotating column to rotate. The first rotating column drives the third bevel gear to rotate, and the third bevel gear drives the fourth bevel gear to rotate. The fourth bevel gear drives the second rotating column to work, and the second rotating column drives the fan blades to rotate. The dust is adsorbed through the dust collection bin and the dust collection port. The reciprocating screw drives the sliding block to move back and forth, and the sliding block drives the connecting column to do forward and reverse motion, so that the dust collection bin can adsorb dust at different angles. The first rotating column drives the first gear to rotate, the first gear drives the second gear to rotate, and the second gear drives the exhaust column to rotate through the rotating rod. When the box is closed, the third spring acts on the limit block so that the exhaust column can adjust the exhaust area according to the inner wall, and at the same time, uniform heat dissipation of the equipment and cleaning of dust in different areas at the bottom of the equipment are achieved, so that the failure rate of the equipment is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Figure 1 It is a right view of the overall structure of the present invention; Figure 2 It is a left view of the overall structure of the present invention; Figure 3 For the present invention Figure 2 The enlarged schematic diagram at A in the middle; Figure 4 This is a schematic diagram of the overall structure of the heat dissipation and dust collection mechanism of the present invention; Figure 5It is a partial structural schematic diagram of the heat dissipation and dust collection mechanism of the present invention; Figure 6 It is a schematic diagram of the overall structure of the disassembly mechanism of the present invention; Figure 7 It is a left side view of the disassembly mechanism of the present invention; Figure 8 It is a schematic diagram of a partial structural cross-section of the present invention; Fig. 9 It is a schematic diagram of the partial structure of the present invention.

[0019] In the figure: 1, box body; 2, heat sink; 3, cabinet door; 4, main power circuit breaker; 5, circuit breaker holder; 6, rotating rod; 7, disc; 8, movable frame; 9, sliding column; 10, moving block; 11, first spring; 12, linkage rod; 13, L-shaped connecting plate; 14, fan; 15, first bevel gear; 16, reciprocating screw; 17, sliding block; 18, screw roller; 19, fan roller; 20, belt; 21, fixing plate ; 22. Connecting column; 23. First rotating column; 24. Second bevel gear; 25. Dust collection bin; 26. Third bevel gear; 27. Second rotating column; 28. Fourth bevel gear; 29. ​​Dust collection port; 30. Limiting strip; 31. Second spring; 32. Limiting plate; 33. Air switch; 34. Clamping block; 35. Switch cover; 36. Rectangular block; 37. First gear; 38. Exhaust column; 39. Third spring; 40. Second gear. DETAILED DESCRIPTION

[0020] The following will be combined with 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.

[0021] like Figures 1 to 9As shown, an embodiment of the present invention provides a prefabricated power distribution cabinet, including a box body 1, a heat dissipation box 2 is fixedly connected to one side of the box body 1, a cabinet door 3 is movably sleeved on one side of the box body 1, a main power circuit breaker 4 is fixedly connected to one side of the inner wall of the box body 1, two rows of circuit breaker fixtures 5 located on the main power circuit breaker 4 are fixedly connected to one side of the inner wall of the box body 1, a switch sleeve 35 is movably sleeved on the middle part of the cabinet door 3, four evenly distributed rectangular blocks 36 are fixedly connected to one end of the outer cylindrical surface of a rotating rod 6, a fixing groove is opened at one end of the switch sleeve 35, and four groups of rectangular blocks 36 are snap-connected with the fixing groove, a wiring terminal located below the circuit breaker fixture 5 is fixedly connected to one side of the inner wall of the box body 1, a rotating rod 6 is fixedly connected to one side of the main power circuit breaker 4, a disc 7 is fixedly connected to one end of the outer cylindrical surface of the rotating rod 6, a movable frame 8 is fixedly connected to one side of the box body 1, and a sliding column 9 is fixedly connected to the inner side of the movable frame 8. The outer circular surface of the movable block 10 is movably sleeved with a moving block 10, and both ends of the moving block 10 are fixedly connected with a first spring 11, and the other end of the first spring 11 is fixedly connected to the inner wall of the movable frame 8, and the first spring 11 is movably sleeved with the outer circular surface of the sliding column 9. One side of the movable block 10 is fixedly connected with a linkage rod 12, and one end of the linkage rod 12 is clamped with the outer edge of the disc 7, and one side of the other end of the linkage rod 12 is movably sleeved with a connecting rod, and the outer circular surface of the connecting rod is movably sleeved with an L-shaped connecting plate 13, and a rectangular groove is provided on one side of the L-shaped connecting plate 13, and the switch of the air switch 33 matches the shape of the rectangular groove, one end of the linkage rod 12 is a right-angled trapezoid, and one end of the linkage rod 12 is adapted to the recessed part of the outer edge of the disc 7, and the fixed block protruding outward of the disc 7 is a rectangular parallelepiped, and the inner wall of the heat sink 2 is provided with a heat dissipation and dust collection mechanism movably sleeved with it, and the upper surface of the air switch fixer 5 is provided with a disassembly mechanism fixedly connected with it.

[0022] Among them, the heat dissipation and dust collection mechanism includes a fan 14, one end of the fan 14 is movably sleeved with the inner wall of the heat dissipation box 2, and the other end of the fan 14 is fixedly connected to a first bevel gear 15, and the inner wall of the heat dissipation box 2 is movably sleeved with a reciprocating screw 16, and the threaded surface of the reciprocating screw 16 is threadedly connected to a sliding block 17, and the lower surface of the sliding block 17 is fixedly connected to a card block, and one end of the sliding block 17 is fixedly connected to a rack, and one end of the outer cylindrical surface of the connecting column 22 is fixedly connected to a plurality of evenly distributed tooth blocks, and the tooth surface of the rack is meshed with the tooth block, and the threaded surface of one end of the reciprocating screw 16 is fixedly connected to a screw roller 18, and the outer cylindrical surface of one end of the fan 14 is fixedly connected to a fan roller 19, and the screw roller 18 is fixedly connected to the outer cylindrical surface of the fan 14. A belt 20 is movably sleeved on the outer cylindrical surface, and a fan roller 19 is movably sleeved on the other end of the belt 20. A fixed plate 21 is fixedly connected to one side of the inner wall of the box body 1. A slide groove is provided on one side of the upper surface of the fixed plate 21. One end of the block is movably sleeved with the inner wall of the slide groove. A connecting column 22 is movably sleeved in the middle of the fixed plate. A first rotating column 23 is movably sleeved in the middle of the connecting column 22. A second bevel gear 24 is fixedly connected to the outer cylindrical surface of the first rotating column 23. The first bevel gear 15 is meshed with the second bevel gear 24. A dust collection bin 25 is fixedly connected to one end of the connecting column 22. A third bevel gear 26 is fixedly connected to one end of the outer cylindrical surface of the first rotating column 23. The middle of one side of the dust collection bin 25 is movably sleeved. A second rotating column 27 is sleeved, one end of the second rotating column 27 is fixedly connected to a fourth bevel gear 28, the third bevel gear 26 is meshed with the fourth bevel gear 28, the outer circumferential surface of the second rotating column 27 is fixedly connected to four evenly distributed fan blades, the other end of the second rotating column 27 is movably sleeved with a dust suction port 29, the dust suction port 29 is a right-angled trapezoidal rotating body, and a plurality of evenly distributed filter screens are provided at one end of the dust suction port 29 close to the fan blades, a plurality of evenly distributed air outlets are provided on one side of the heat dissipation box 2, and a plurality of evenly distributed air outlets are provided on the outer circumferential surface of the exhaust column 38. The fan 14 operates normally, the fan 14 drives the fan roller 19 and the first bevel gear 15 to rotate, and the fan roller 19 passes The belt 20 drives the screw roller 18 to rotate, the screw roller 18 drives the reciprocating screw 16 to rotate, the first bevel gear 15 drives the second bevel gear 24 to rotate, the second bevel gear 24 drives the first rotating column 23 to rotate, the first rotating column 23 drives the third bevel gear 26 to rotate, the third bevel gear 26 drives the fourth bevel gear 28 to rotate, the fourth bevel gear 28 drives the second rotating column 27 to work, the second rotating column 27 drives the fan blades to rotate, and the dust is adsorbed through the dust collection bin 25 and the dust collection port 29, the reciprocating screw 16 drives the sliding block 17 to move back and forth, the sliding block 17 drives the connecting column 22 to do forward and reverse motion, so that the dust collection bin 25 can adsorb dust at different angles.

[0023] Among them, the disassembly structure includes a limit bar 30, and both sides of the space switch fixer 5 are fixedly connected to the limit bar 30, one side of the space switch fixer is fixedly connected with a plurality of evenly distributed second springs 31, one side of the second spring 31 is fixedly connected with a limit plate 32, one side of the space switch fixer 5 is movably sleeved with a plurality of evenly distributed space switches 33, and the middle part of the protrusions on both sides of the space switch 33 is movably sleeved with a clamping block 34, which can be pressed on the space switch 33 to make the clamping block 34 slide toward the inside of the space switch 33. Under the action of the limit bar 30, the second spring 31 and the limit plate 32, the space switch 33 is easily disassembled, which simplifies the disassembly process, saves maintenance time and reduces safety hazards.

[0024] Among them, one end of the first rotating column 23 is fixedly connected to the first gear 37, a rotating rod is movably sleeved in the middle of the upper surface of the box body 1, an exhaust column 38 is movably sleeved in the middle of one end of the outer cylindrical surface of the rotating rod, and one end of the rotating rod is fixedly connected to the second gear 40. The first gear 37 is meshed with the second gear 40. The outer cylindrical surface of the exhaust column 38 is fixedly connected to a limiting block, and one side of the limiting block is fixedly connected to a third spring 39. One end of the third spring 39 is fixedly connected to the outer cylindrical surface of the rotating rod. The outer cylindrical surface of the exhaust column 38 is movably sleeved with the third spring 39. The first rotating column 23 drives the first gear 37 to rotate, and the first gear 37 drives the second gear 40 to rotate. The second gear 40 drives the exhaust column 38 to rotate through the rotating rod. When the box body 1 is closed, the third spring 39 acts on the limiting block so that the exhaust column 38 can adjust the exhaust area according to the inner wall, thereby achieving uniform heat dissipation of the equipment.

[0025] Working principle: When the equipment is operating normally, the fan 14 is operating normally, the fan 14 drives the fan roller 19 and the first bevel gear 15 to rotate, the fan roller 19 drives the screw roller 18 to rotate through the belt 20, the screw roller 18 drives the reciprocating screw 16 to rotate, the first bevel gear 15 drives the second bevel gear 24 to rotate, the second bevel gear 24 drives the first rotating column 23 to rotate, the first rotating column 23 drives the third bevel gear 26 to rotate, the third bevel gear 26 drives the fourth bevel gear 28 to rotate, the fourth bevel gear 28 drives the second rotating column 27 to work, and the second rotating column 27 drives the fan blades to rotate. The dust is adsorbed by the dust suction bin 25 and the dust suction port 29, the reciprocating screw 16 drives the sliding block 17 to move forward and backward, the sliding block 17 drives the connecting column 22 to do forward and reverse motion, so that the dust suction bin 25 can adsorb dust at different angles, the first rotating column 23 drives the first gear 37 to rotate, the first gear 37 drives the second gear 40 to rotate, and the second gear 40 drives the exhaust column 38 to rotate through the rotating rod. When the box body 1 is closed, the third spring 39 acts as a limit block so that the exhaust column 38 can adjust the exhaust area according to the inner wall, thereby achieving uniform heat dissipation of the equipment.

[0026] In addition, when it is necessary to restart or power off the entire device, the groove of the switch sleeve 35 is aligned with the rectangular block 36. When the protrusion of the disc 7 squeezes the linkage rod 12, the linkage rod 12 drives the moving block 10 to move downward in the movable frame 8, and the linkage rod 12 drives the L-shaped connecting plate 13 to move downward, thereby realizing the closing of the circuit breaker 33 before the main power circuit breaker 4 is closed, reducing the impact of sudden power failure on the connected devices and circuits, and avoiding malfunctions and damage caused by sudden power failure. When it is necessary to start the power supply of the device, the switch sleeve 35 is rotated to fully open the main power circuit breaker 4, and the concave portion of the outer edge of the disc 7 is brought into contact with the circuit breaker 33. The dynamic linkage rod 12 moves upward, and the linkage rod 12 drives the L-shaped connecting plate 13 to move upward, thereby realizing the opening of the small circuit breaker 33 after the main power circuit breaker 4 is turned on, ensuring that the current is restored in sequence, thereby avoiding damage to the equipment and circuits due to large current shock. Finally, when it is necessary to disassemble a certain circuit breaker 33 separately, the circuit breaker 33 can be pressed to make the clamping block 34 slide to the inside of the circuit breaker 33. Under the action of the limit strip 30, the second spring 31 and the limit plate 32, the circuit breaker 33 can be easily disassembled, which simplifies the disassembly process, saves maintenance time and reduces safety hazards.

[0027] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A prefabricated power distribution cabinet, comprising a box body (1), a heat dissipation box (2) being fixedly connected to one side of the box body (1), a cabinet door (3) being movably sleeved on one side of the box body (1), a main power circuit breaker (4) being fixedly connected to one side of the inner wall of the box body (1), and two rows of circuit breaker fixtures (5) located on the main power circuit breaker (4) being fixedly connected to one side of the inner wall of the box body (1), characterized in that: A rotating rod (6) is fixedly connected to one side of the main power circuit breaker (4); a disc (7) is fixedly connected to one end of the outer cylindrical surface of the rotating rod (6); a movable frame (8) is fixedly connected to one side of the box body (1); a sliding column (9) is fixedly connected to the inner side of the movable frame (8); a moving block (10) is movably sleeved on the outer cylindrical surface of the sliding column (9); first springs (11) are fixedly connected to both ends of the moving block (10); the other end of the first spring (11) is fixedly connected to the inner wall of the movable frame (8); The first spring (11) is movably sleeved with the outer cylindrical surface of the sliding column (9); one side of the moving block (10) is fixedly connected with a linkage rod (12); one end of the linkage rod (12) is clamped with the outer edge of the disc (7); one side of the other end of the linkage rod (12) is movably sleeved with a connecting rod; the outer cylindrical surface of the connecting rod is movably sleeved with an L-shaped connecting plate (13); the inner wall of the heat dissipation box (2) is provided with a heat dissipation and dust collection mechanism movably sleeved therewith; and the upper surface of the air switch fixer (5) is provided with a disassembly mechanism fixedly connected therewith.

2. A prefabricated power distribution cabinet according to claim 1, characterized in that: The heat dissipation and dust collection mechanism comprises a fan (14), one end of the fan (14) is movably sleeved with the inner wall of the heat dissipation box (2), the other end of the fan (14) is fixedly connected to a first bevel gear (15), the inner wall of the heat dissipation box (2) is movably sleeved with a reciprocating screw (16), the threaded surface of the reciprocating screw (16) is threadedly connected to a sliding block (17), the lower surface of the sliding block (17) is fixedly connected to a clamping block, the threaded surface of one end of the reciprocating screw (16) is fixedly connected to a screw roller (18), the outer cylindrical surface of one end of the fan (14) is fixedly connected to a fan roller (19), the outer cylindrical surface of the screw roller (18) is movably sleeved with a belt (20), and the other end of the belt (20) is movably sleeved with the fan roller (19).

3. A prefabricated power distribution cabinet according to claim 2, characterized in that: A fixing plate (21) is fixedly connected to one side of the inner wall of the box body (1); a sliding groove is provided on one side of the upper surface of the fixing plate (21); one end of the clamping block is movably sleeved with the inner wall of the sliding groove; a connecting column (22) is movably sleeved in the middle of the fixing plate; a first rotating column (23) is movably sleeved in the middle of the connecting column (22); a second bevel gear (24) is fixedly connected to the outer cylindrical surface of the first rotating column (23); the first bevel gear (15) is meshed with the second bevel gear (24); one end of the connecting column (22) is fixedly connected to A dust collecting bin (25) is provided, one end of the outer circumferential surface of the first rotating column (23) is fixedly connected to a third bevel gear (26), a second rotating column (27) is movably sleeved at a middle portion of one side of the dust collecting bin (25), one end of the second rotating column (27) is fixedly connected to a fourth bevel gear (28), the third bevel gear (26) meshes with the fourth bevel gear (28), the outer circumferential surface of the second rotating column (27) is fixedly connected to four evenly distributed fan blades, and the other end of the second rotating column (27) is movably sleeved to a dust collecting port (29).

4. The prefabricated power distribution cabinet according to claim 3, characterized in that: One end of the first rotating column (23) is fixedly connected to a first gear (37), a rotating rod is movably sleeved in the middle of the upper surface of the box body (1), an exhaust column (38) is movably sleeved in the middle of one end of the outer cylindrical surface of the rotating rod, one end of the rotating rod is fixedly connected to a second gear (40), the first gear (37) is meshed with the second gear (40), the outer cylindrical surface of the exhaust column (38) is fixedly connected to a limiting block, one side of the limiting block is fixedly connected to a third spring (39), one end of the third spring (39) is fixedly connected to the outer cylindrical surface of the rotating rod, and the outer cylindrical surface of the exhaust column (38) is movably sleeved with the third spring (39).

5. The prefabricated power distribution cabinet according to claim 4, characterized in that: A switch sleeve (35) is movably sleeved in the middle of the cabinet door (3); one end of the outer circumferential surface of the rotating rod (6) is fixedly connected to four evenly distributed rectangular blocks (36); one end of the switch sleeve (35) is provided with a fixing groove; four groups of rectangular blocks (36) are snap-fitted into the fixing groove; and one side of the inner wall of the box body (1) is fixedly connected to a wiring terminal located below the air switch holder (5).

6. The prefabricated power distribution cabinet according to claim 5, characterized in that: The disassembly structure comprises a limit bar (30), both sides of the space switch holder (5) are fixedly connected to the limit bar (30), one side of the space switch holder is fixedly connected to a plurality of evenly distributed second springs (31), one side of the second spring (31) is fixedly connected to a limit plate (32), one side of the space switch holder (5) is movably sleeved with a plurality of evenly distributed space switches (33), and a clamping block (34) is movably sleeved in the middle of the protrusions on both sides of the space switch (33).

7. The prefabricated power distribution cabinet according to claim 6, characterized in that: One end of the sliding block (17) is fixedly connected to a rack, one end of the outer circumferential surface of the connecting column (22) is fixedly connected to a plurality of evenly distributed tooth blocks, and the tooth surface of the rack meshes with the tooth blocks.

8. The prefabricated power distribution cabinet according to claim 7, characterized in that: A rectangular groove is provided on one side of the L-shaped connecting plate (13), and the switch of the spacer (33) matches the shape of the rectangular groove.

9. The prefabricated power distribution cabinet according to claim 8, characterized in that: One end of the linkage rod (12) is in the shape of a right-angled trapezoid, and one end of the linkage rod (12) is adapted to a recessed portion of the outer edge of the disk (7), and the fixed block protruding outward from the disk (7) is in the shape of a rectangular parallelepiped.

10. The prefabricated power distribution cabinet according to claim 9, characterized in that: The dust suction port (29) is a right-angled trapezoidal rotating body, and a plurality of evenly distributed filter screens are provided at one end of the dust suction port (29) close to the fan blades, a plurality of evenly distributed air outlets are provided at one side of the heat dissipation box (2), and a plurality of evenly distributed air outlets are provided on the outer circumferential surface of the exhaust column (38).

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