Waterproof structure for distribution box

Abstract

The application discloses a waterproof structure for a distribution box and relates to the technical field of the distribution box. The waterproof structure comprises a box body, ventilation holes are formed in the two sides of the box body, shielding structures are arranged on the two sides of the box body, the shielding structures comprise protective covers, the protective covers are fixedly connected with the surfaces of the box body, the protective covers cover the ventilation holes, a plurality of air inlet holes are formed in the surface of each protective cover, a rectangular groove is formed in one side of the inner wall of each air inlet hole, two rectangular holes are formed in the surface of each protective cover, the rectangular holes are communicated with the plurality of rectangular grooves, and a baffle is slidably inserted into the inner wall of each rectangular groove. The baffle covers the air inlet holes of the protective cover, the protective cover can cover the ventilation holes at this time, the effect that rainwater splashes into the box body from the ventilation holes is avoided, and the situation that rainwater enters the interior and causes damage is avoided.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of distribution boxes, in particular to a waterproof structure for a distribution box. BACKGROUND

[0002] A distribution box is generally composed of a box body, a switch electric appliance, a protective electric appliance, a measuring instrument and a connecting bus bar and the like, the shell of the distribution box plays a role in protecting internal electric elements and preventing electric shock, the box body is usually made of metal or plastic and has certain strength and protection level, for example, in some outdoor distribution boxes, the protection level of the box body is high, rainwater, dust and the like can be prevented from entering the box to ensure the normal operation of internal electric equipment.

[0003] At present, the common waterproof measure for outdoor distribution boxes on the market mainly installs a rain cover outside the ventilation hole, the rain cover is generally inclined and similar to a small roof, can guide rainwater to slide from the side to avoid the rainwater from directly vertically entering the ventilation hole, but in the case of wind, the rainwater can be blown by the wind to the rain cover of the ventilation hole of the distribution box, the rainwater can directly impact on the rain cover of the ventilation hole, since the rainwater has certain speed and momentum, splashing can be generated after the impact, and part of the splashing water drops can enter the distribution cabinet through the hole of the ventilation hole. SUMMARY

[0004] The application provides a waterproof structure for a distribution box, which can close the air inlet of the protective cover when it rains to cover the ventilation hole of the distribution box, so that the rainwater cannot enter the distribution box from the ventilation hole, thereby solving the problem in the background technology.

[0005] The waterproof structure for the distribution box provided by the application adopts the following technical scheme:

[0006] The utility model provides a waterproof structure for distribution box, including box, the surface of box is equipped with box door, the upper surface of box is equipped with top plate, the surface of top plate is equipped with a plurality of exhaust hole, both sides of box are equipped with ventilation hole, both sides of box are equipped with shelter structure, the surface of shelter structure is fixedly connected with the protection cover of box, the protection cover covers ventilation hole, the surface of protection cover is equipped with a plurality of air inlet, one side of the inner wall of a plurality of air inlet is equipped with rectangular groove, the surface of protection cover is equipped with two rectangular holes, the rectangular hole is connected with a plurality of rectangular groove, the inner wall of a plurality of rectangular groove is slidably inserted with baffle, the size of baffle is adapted to the size of air inlet, the inner wall of two rectangular holes is slidably inserted with traction belt, two traction belts are fixedly connected with a plurality of baffles, the surface of box is fixedly connected with frame, the surface of frame is slidably connected with two sliding blocks, the side of two sliding blocks close to each other is fixedly connected with rectangular box, the end of two traction belts away from baffle is fixedly connected with rectangular box, the surface of rectangular box is equipped with two drain holes.

[0007] By adopting the above technical scheme, the ventilation hole can be conveniently covered, rainwater can be prevented from splashing into the box from the ventilation hole, and the components in the box can be prevented from being damaged due to the entry of rainwater.

[0008] Preferably, the surface of the frame is fixedly connected with four fixed plates, two of the four fixed plates are a group, and the side of one group of fixed plates close to each other is rotatably connected with a rotating wheel.

[0009] By adopting the above technical scheme, the traction belt moves along the surface of the rotating wheel, the rotating wheel rotates on the surface of the fixed plate by the sliding force of the traction belt, and the rotating wheel supports the traction belt, so that the traction belt is prevented from being jammed due to excessive friction with the surface of the frame when sliding along the surface of the frame.

[0010] Preferably, the surface of the frame is fixedly connected with two extension tubes, and the size of the extension tube is adapted to the size of the drain hole.

[0011] By adopting the above technical scheme, the extension tube is inserted into the water inlet hole, and the extension tube limits the drainage position of the drain hole, so that the rainwater in the drain hole is prevented from dripping on the surface of the distribution box again.

[0012] Preferably, the end of the traction belt away from the rectangular box is fixedly connected with a rope, and the other end of the rope is fixedly connected with a lead weight.

[0013] By adopting the above technical scheme, the lead weight pulls the rope by its own weight, the rope pulls the traction belt, so that the traction belt is subjected to gravity, and the baffle and the traction belt are conveniently reset.

[0014] Preferably, the surface of the extension pipe is provided with an auxiliary structure, the auxiliary structure comprises two connecting warehouses, two extension pipes are communicated with the two connecting warehouses respectively, the inner wall of the connecting warehouse is rotationally connected with an impeller, one side of the impeller is fixedly connected with a driving shaft, the driving shaft rotationally penetrates the connecting warehouse, the inner wall of the protective cover is fixedly connected with a rectangular plate, the surface of the rectangular plate is rotationally connected with two round rods, one end of the round rod is fixedly connected with a bevel gear B, both sides of the protective cover rotationally penetrate a transmission shaft, one end of the transmission shaft close to the round rod is fixedly connected with a bevel gear A, the bevel gear A is engaged with the bevel gear B, the transmission shaft and one end of the driving shaft are fixedly connected with a transmission wheel, the surface of the two transmission wheels is sleeved with a transmission belt, one end of the round rod away from the bevel gear B is fixedly connected with a fan blade.

[0015] By adopting the above technical scheme, the fan blade is driven to rotate by the flow of rainwater in the extension pipe, the rotation of the fan blade can suck air into the protective cover, thereby improving the efficiency of air entering the protective cover, and the ventilation effect of the ventilation hole is ensured.

[0016] Preferably, one side of the rectangular plate is fixedly connected with two extension blocks, and one side of the extension block away from the rectangular plate is fixedly connected with a V-shaped plate.

[0017] By adopting the above technical scheme, when the air enters the protective cover, it will blow to the rectangular plate, and because the surface of the rectangular plate is fixedly connected with the V-shaped plate, the flow direction of the air is divided, thereby avoiding further improving the flow effect of the air.

[0018] Preferably, the inner wall of the protective cover is fixedly connected with a filter screen.

[0019] By adopting the above technical scheme, the filter screen can filter the air sucked into the protective cover, thereby avoiding the dust entering the protective cover with the air.

[0020] Preferably, the surface of the top plate is provided with a cleaning structure, the cleaning structure comprises a plurality of grooves, the plurality of grooves are respectively arranged on both sides of the top plate, the inner walls of two symmetrically arranged grooves are rotationally connected with rotating plates, a plurality of push rods are slidingly penetrated through the surface of the top plate, the surface of the push rod is fixedly connected with a circular ring, the surface of the push rod is sleeved with a spring, both ends of the spring are fixedly connected with the circular ring and the top plate, and one side of the rotating plate is fixedly connected with a cam.

[0021] By adopting the above technical scheme, fallen leaves or impurities falling on the top plate can be easily removed, thereby avoiding the fallen leaves and impurities accumulating on the surface of the top plate, and causing the surface of the top plate to be corroded.

[0022] Preferably, both ends of the push rod are rotationally connected with a ball.

[0023] By adopting the above technical solution, the ball bearings reduce the friction between the push rod and the cam and the rotating plate to prevent movement, thereby facilitating the cam to drive the rotating plate to rotate with the help of the push rod.

[0024] Preferably, an elastic cloth is fixedly connected to one side of the two rotating plates that are close to each other.

[0025] By adopting the above technical solution, the rotating plate will rotate and reset by its own weight and the rebound force of the elastic cloth. The elastic cloth can easily reset the rotating plate to the correct angle, thereby making it easier to cover the gap between the two rotating plates after rotation, preventing impurities from entering the position between the rotating plate and the top plate.

[0026] In summary, this application has the following beneficial effects:

[0027] 1. By setting up a shielding structure, the ventilation holes can be covered to prevent rainwater from splashing into the box, thus preventing rainwater from entering the interior and causing damage. Furthermore, by using an extension pipe to connect to the drainage hole, rainwater dripping onto the surface of the frame and splashing onto the box surface is prevented, further improving the waterproof effect of the distribution box.

[0028] 2. By setting up an auxiliary structure, the flow of rainwater in the extended pipe drives the fan blades to rotate. The rotation of the fan blades will draw air into the protective cover, thereby improving the efficiency of air entering the protective cover and ensuring the ventilation effect of the ventilation holes. In addition, by setting a filter screen on the inner wall of the protective cover, the air entering the protective cover is filtered, thereby filtering out the dust in the air and preventing dust from entering the box through the ventilation holes.

[0029] 3. By setting up a cleaning structure, the rotating plate is driven by the rotation of the wheel, which makes it easy to remove fallen leaves or impurities that have fallen on the top plate, thereby avoiding the accumulation of fallen leaves and other impurities on the surface of the top plate, which would cause corrosion to the surface of the top plate. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure in this embodiment;

[0031] Figure 2 This is a three-dimensional structural diagram of the box in this embodiment;

[0032] Figure 3 This is in this embodiment Figure 1 Another perspective of the three-dimensional structure;

[0033] Figure 4 This is a three-dimensional structural diagram of the shielding structure in this embodiment;

[0034] Figure 5 This is a three-dimensional structural diagram of the frame in this embodiment;

[0035] Figure 6 This is a schematic diagram of the three-dimensional structure of the rectangular box in this embodiment;

[0036] Figure 7 This is a schematic diagram of the disassembled structure of the protective cover in this embodiment;

[0037] Figure 8 This is a three-dimensional structural diagram of the auxiliary structure in this embodiment;

[0038] Figure 9 This is a schematic diagram of the internal structure of the connecting compartment in this embodiment;

[0039] Figure 10 This is a schematic diagram of the disassembled structure of the rectangular plate in this embodiment;

[0040] Figure 11 This is a three-dimensional structural diagram of the top plate in this embodiment;

[0041] Figure 12 This is in this embodiment Figure 11 Enlarged view of point A in the image.

[0042] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Box door; 3. Top plate; 4. Exhaust vent; 5. Ventilation hole; 6. Shielding structure; 601. Protective cover; 602. Air inlet; 603. Rectangular groove; 604. Rectangular hole; 605. Baffle; 606. Traction belt; 607. Frame; 608. Sliding block; 609. Rectangular box; 610. Drainage hole; 611. Fixing plate; 612. Rotary wheel; 613. Extension tube; 614. Rope; 615. Plumb bob; 7. Auxiliary structure; 701 702. Connecting chamber; 703. Impeller; 704. Drive shaft; 705. Transmission wheel; 706. Transmission belt; 707. Transmission shaft; 708. Bevel gear A; 709. Rectangular plate; 710. Round rod; 711. Bevel gear B; 712. Fan blade; 713. Extension block; 714. V-shaped plate; 715. Filter screen; 816. Cleaning structure; 817. Groove; 82. Rotating plate; 83. Push rod; 84. Ring; 85. Spring; 86. Cam; 87. Ball bearing; 88. Elastic cloth. Detailed Implementation

[0043] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0044] This invention discloses a waterproof structure for a distribution box, such as...Figures 1-7 As shown, the enclosure includes a housing 1, a door 2 mounted on the surface of the housing 1, a top plate 3 mounted on the upper surface of the housing 1, several exhaust holes 4 on the surface of the top plate 3, ventilation holes 5 on both sides of the housing 1, and a shielding structure 6 on both sides of the housing 1. The shielding structure 6 includes a protective cover 601, which is fixedly connected to the surface of the housing 1 and covers the ventilation holes 5. Several air inlets 602 are provided on the surface of the protective cover 601, and a rectangular groove 603 is provided on one side of the inner wall of each of the several air inlets 602. Two rectangular holes 604 are provided on the surface of the protective cover 601, which are connected to the several rectangular grooves 603. Baffles 605 are slidably inserted into the inner walls of each of the several rectangular grooves 603. The dimensions are adapted to the dimensions of the air inlet 602. The inner walls of the two rectangular holes 604 are slidably fitted with traction straps 606. The two traction straps 606 are fixedly connected to several baffles 605. A frame 607 is fixedly connected to the surface of the housing 1. Two sliders 608 are slidably connected to the surface of the frame 607. A rectangular box 609 is fixedly connected to the side of the two sliders 608 that is close to each other. The ends of the two traction straps 606 away from the baffles 605 are fixedly connected to the rectangular box 609. Two drainage holes 610 are opened on the surface of the rectangular box 609 to facilitate the covering of the ventilation hole 5, thereby preventing rainwater from splashing into the housing 1 from the ventilation hole 5, and thus preventing rainwater from entering the housing 1 and causing damage to the components inside the housing 1.

[0045] like Figures 1-7 As shown, four fixing plates 611 are fixedly connected to the surface of frame 607. The four fixing plates 611 are arranged in pairs. A rotating wheel 612 is rotatably connected to the side of each pair of fixing plates 611 that is close to each other. When the traction belt 606 moves, it slides along the surface of the rotating wheel 612. The rotating wheel 612 rotates on the surface of the fixing plate 611 with the help of the sliding force of the traction belt 606, thus supporting the traction belt 606 and preventing excessive friction between the traction belt 606 and the surface of frame 607, which could cause the traction belt 606 to jam. Two extension tubes 613 are fixedly connected to the surface of frame 607. The size of the extension tubes 613 is adapted to the size of the drain hole 610. The extension tubes 613 are inserted into the water inlet hole, limiting the drainage position of the drain hole 610 and preventing rainwater from dripping back onto the surface of the distribution box. A rope 614 is fixedly connected to one end of the traction belt 606 away from the rectangular box 609, and a plumb bob 615 is fixedly connected to the other end of the rope 614. The plumb bob 615 will pull the rope 614 with its own weight, and the rope 614 will pull the traction belt 606, thereby applying gravity to the traction belt 606, which facilitates the repositioning of the baffle 605 and the traction belt 606.

[0046] Combined with appendix Figure 8 and attachedFigure 9 and appendix Figure 10 As shown, to improve the efficiency of air entering the protective cover 601 after the air inlet 602 is closed, an auxiliary structure 7 is provided on the surface of the extension pipe 613. The auxiliary structure 7 includes two connecting chambers 701, which are respectively connected to two extension pipes 613. An impeller 702 is rotatably connected to the inner wall of the connecting chamber 701. A drive shaft 703 is fixedly connected to one side of the impeller 702 and rotates through the connecting chamber 701. A rectangular plate 708 is fixedly connected to the inner wall of the protective cover 601. Two round rods 709 are rotatably connected to the surface of the rectangular plate 708. A bevel gear B710 is fixedly connected to one end of each round rod 709. The two ends of the protective cover 601 are connected to the two... A drive shaft 706 is rotatably connected to both sides. A bevel gear A707 is fixedly connected to one end of the drive shaft 706 near the round rod 709. The bevel gear A707 meshes with the bevel gear B710. A drive wheel 704 is fixedly connected to one end of both the drive shaft 706 and the drive shaft 703. A drive belt 705 is fitted on the surface of the two drive wheels 704. A fan blade 711 is fixedly connected to the end of the round rod 709 away from the bevel gear B710. The fan blade 711 is driven to rotate by the flow of rainwater in the extension pipe 613. The rotation of the fan blade 711 will draw air into the protective cover 601, thereby improving the efficiency of air entering the protective cover 601 and ensuring the ventilation effect of the ventilation hole 5. Two extension blocks 712 are fixedly connected to one side of the rectangular plate 708. A V-shaped plate 713 is fixedly connected to the side of the two extension blocks 712 away from the rectangular plate 708. When air enters the protective cover 601, it blows towards the rectangular plate 708. Because the V-shaped plate 713 is fixed to the surface of the rectangular plate 708, the airflow is diverted, preventing further increase in airflow efficiency. A filter screen 714 is fixedly connected to the inner wall of the protective cover 601. The filter screen 714 filters the air drawn into the protective cover 601, thus preventing dust from entering the protective cover 601 with the airflow.

[0047] Combined with appendix Figure 5 and attached Figure 11 and appendix Figure 12As shown, to further remove fallen leaves and impurities from the top plate 3, a cleaning structure 8 is provided on the surface of the top plate 3. The cleaning structure 8 includes several grooves 81, which are respectively opened on both sides of the top plate 3. A rotating plate 82 is rotatably connected to the inner wall of two symmetrically opened grooves 81. Several push rods 83 slide through the surface of the top plate 3. A ring 84 is fixedly connected to the surface of the push rod 83. A spring 85 is sleeved on the surface of the push rod 83. The two ends of the spring 85 are fixedly connected to the ring 84 and the top plate 3, respectively. A cam 86 is fixedly connected to one side of the rotating wheel 612 to facilitate the removal of fallen leaves or impurities from the top plate 3, thereby preventing the accumulation of fallen leaves and other impurities on the surface of the top plate 3, which would cause corrosion. Both ends of the push rod 83 are rotatably connected to ball bearings 87. The ball bearings 87 reduce the friction between the push rod 83 and the cam 86 and the rotating plate 82 when they move, thereby facilitating the cam 86 to drive the rotating plate 82 to rotate with the help of the push rod 83. An elastic cloth 88 is fixedly connected to one side of the two rotating plates 82 that are close to each other. The rotating plates 82 will rotate and reset by their own weight and the rebound force of the elastic cloth 88. The elastic cloth 88 can easily reset the rotating plates 82 to the correct angle, thereby covering the gap between the two rotating plates 82 after rotation and preventing impurities from entering the position between the rotating plates 82 and the top plate 3.

[0048] Working principle: Because the weight of the rectangular box 609 is slightly lighter than the weight of the multiple baffles 605, the rectangular box 609 is pulled up within the frame 607 by the baffles 605 using the traction belt 606. When it rains, rainwater drips into the rectangular box 609. As the amount of rainwater inside the rectangular box 609 increases, the rainwater will drain out through the drainage holes 610 on the surface. When the efficiency of dripping rainwater is greater than the efficiency of drainage, the weight of the rectangular box 609 will increase accordingly. When the amount of rainwater inside the rectangular box 609 reaches a certain weight, the rectangular box 609 will drive the slider 608 within the frame 607. When the rectangular box 609 moves inwards, it pulls two traction belts 606. The traction belts 606 slide along the surface of the rotating wheel 612, which rotates on the surface of the fixed plate 611 with the help of the sliding force of the traction belts 606. The rotating wheel 612 supports the traction belts 606, thus preventing excessive friction between the traction belts 606 and the surface of the frame 607, which could cause the traction belts 606 to jam. The traction belts 606 also slide within the rectangular hole 604, simultaneously pulling multiple baffles 605. The baffles 605 then move... The baffle 605 will gradually detach from the rectangular groove 603 and gradually cover the water inlet. As the traction belt 606 moves, it will also pull the rope 614, which in turn will move the lead block. Once the baffle 605 completely covers the water inlet, rainwater is prevented from entering the protective cover 601 through the water inlet, thus preventing rainwater from entering the housing 1 through the ventilation hole 5. Air will enter from the bottom of the protective cover 601, thus ensuring ventilation while blocking rainwater from the ventilation hole 5. The extension pipe 613 will be inserted into the water inlet, limiting the drainage hole. The drainage position of 610 prevents rainwater from dripping back onto the surface of the distribution box. When the rain stops, the water in the rectangular box 609 will gradually drain out through the drainage hole 610. As the amount of rainwater in the rectangular box 609 decreases, the weight of the rectangular box 609 decreases. At this time, the baffle 605 will use its own weight to reset the rectangular box 609. At this time, the weight of the plumb bob 615 will pull the rope 614, and the rope 614 will pull the traction belt 606, thereby applying gravity to the traction belt 606, which makes it easier to reset the baffle 605 and the traction belt 606.

[0049] When rainwater is discharged through the extension pipe 613, it enters the connecting chamber 701. The rainwater entering the connecting chamber 701 impacts the surface of the impeller 702, causing it to rotate. This rotation drives the drive shaft 703, which in turn drives the transmission wheel 704. The rotation of the transmission wheel 704, via the transmission belt 705, drives another transmission wheel 704. The force from the transmission belt 705 drives the transmission shaft 706, which in turn drives the bevel gear A 707. The rotation of bevel gear A 707 then drives the bevel gear B 710. The rotation of wheel B710 drives the round rod 709 to rotate, which in turn drives the fan blade 711 to rotate. The rotation of the fan blade 711 draws air into the protective cover 601, thereby improving the efficiency of air entering the protective cover 601. As the fan blade 711 draws in dust along with the air, the filter screen 714 filters the air drawn into the protective cover 601, thus preventing dust from entering the protective cover 601. When the air enters the protective cover 601, it blows towards the rectangular plate 708. Because the rectangular plate 708 has a V-shaped plate 713 fixed on its surface, the airflow is diverted, further improving the airflow effect.

[0050] When the rotating wheel 612 rotates, it drives the cam 86 to rotate. The rotation of the cam 86 will hit the push rod 83. The push rod 83 will slide inside the top plate 3 due to the impact. When the push rod 83 moves, it will compress the spring 85. The movement of the push rod 83 will squeeze the rotating plate 82. The rotating plate 82 will rotate on the surface of the top plate 3 due to the squeezing of the push rod 83. When the rotating plate 82 rotates, it will stretch the elastic cloth 88. The rotating plate 82 will gradually rotate towards a more vertical angle. At this time, fallen leaves or impurities on the rotating plate 82 will slide off due to the excessive angle of the rotating plate 82. When the cam 86 and the push rod 83 are no longer in contact, the push rod 83 will enter the reset position with the help of the contraction force of the spring 85. The rotating plate 82 will rotate and reset with the help of its own weight and the rebound force of the elastic cloth 88. The elastic cloth 88 can facilitate the reset angle of the rotating plate 82, and thus facilitate the covering of the gap between the two rotating plates 82 after rotation, preventing impurities from entering the position between the rotating plate 82 and the top plate 3.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A waterproof structure for a distribution box, comprising a box body (1), a door (2) installed on the surface of the box body (1), a top plate (3) installed on the upper surface of the box body (1), a plurality of ventilation holes (4) opened on the surface of the top plate (3), ventilation holes (5) opened on both sides of the box body (1), and a shielding structure (6) provided on both sides of the box body (1), characterized in that: The shielding structure (6) includes a protective cover (601), which is fixedly connected to the surface of the housing (1). The protective cover (601) covers the ventilation holes (5). The surface of the protective cover (601) has several air inlets (602). One side of the inner wall of each of the several air inlets (602) has a rectangular groove (603). The surface of the protective cover (601) has two rectangular holes (604), which are connected to the several rectangular grooves (603). The inner walls of each of the several rectangular grooves (603) are slidably fitted with baffles (605). The size of the baffles (605) is related to the air inlet. The sizes of the holes (602) are matched, and the inner walls of the two rectangular holes (604) are slidably fitted with traction belts (606). The two traction belts (606) are fixedly connected to several baffles (605). A frame (607) is fixedly connected to the surface of the box (1). Two sliders (608) are slidably connected to the surface of the frame (607). A rectangular box (609) is fixedly connected to the side of the two sliders (608) that is close to each other. The ends of the two traction belts (606) away from the baffles (605) are fixedly connected to the rectangular box (609). Two drainage holes (610) are opened on the surface of the rectangular box (609).

2. The waterproof structure for a distribution box according to claim 1, characterized in that: The surface of the frame (607) is fixedly connected to four fixing plates (611), the four fixing plates (611) are in pairs, and a wheel (612) is rotatably connected to the side of each pair of fixing plates (611) that is close to each other.

3. The waterproof structure for a distribution box according to claim 1, characterized in that: Two extension tubes (613) are fixedly connected to the surface of the frame (607), and the size of the extension tubes (613) is adapted to the size of the drain hole (610).

4. The waterproof structure for a distribution box according to claim 1, characterized in that: The traction belt (606) is fixedly connected to a rope (614) at one end away from the rectangular box (609), and a plumb bob (615) is fixedly connected to the other end of the rope (614).

5. A waterproof structure for a distribution box according to claim 3, characterized in that: The surface of the extension tube (613) is provided with an auxiliary structure (7), the auxiliary structure (7) includes two connecting chambers (701), the two connecting chambers (701) are respectively connected to the two extension tubes (613), the inner wall of the connecting chamber (701) is rotatably connected to an impeller (702), one side of the impeller (702) is fixedly connected to a drive shaft (703), the drive shaft (703) rotatably passes through the connecting chamber (701), the inner wall of the protective cover (601) is fixedly connected to a rectangular plate (708), the surface of the rectangular plate (708) is rotatably connected to two round rods (709), the round rods (709) One end of the protective cover (601) is fixedly connected to a bevel gear B (710). Both sides of the protective cover (601) are rotatably connected to a drive shaft (706). The end of the drive shaft (706) near the round rod (709) is fixedly connected to a bevel gear A (707). The bevel gear A (707) meshes with the bevel gear B (710). One end of the drive shaft (706) and the drive shaft (703) are both fixedly connected to a drive wheel (704). The surfaces of the two drive wheels (704) are covered with a drive belt (705). The end of the round rod (709) away from the bevel gear B (710) is fixedly connected to a fan blade (711).

6. A waterproof structure for a distribution box according to claim 5, characterized in that: Two extension blocks (712) are fixedly connected to one side of the rectangular plate (708), and a V-shaped plate (713) is fixedly connected to the side of the two extension blocks (712) away from the rectangular plate (708).

7. A waterproof structure for a distribution box according to claim 5, characterized in that: A filter screen (714) is fixedly connected to the inner wall of the protective cover (601).

8. A waterproof structure for a distribution box according to claim 2, characterized in that: The surface of the top plate (3) is provided with a cleaning structure (8), the cleaning structure (8) includes a plurality of grooves (81), the plurality of grooves (81) are respectively opened on both sides of the top plate (3), the inner walls of two symmetrically opened grooves (81) are rotatably connected to a rotating plate (82), the surface of the top plate (3) is slidably penetrated by a plurality of push rods (83), the surface of the push rods (83) is fixedly connected to a ring (84), the surface of the push rods (83) is fitted with a spring (85), the two ends of the spring (85) are fixedly connected to the ring (84) and the top plate (3) respectively, and a cam (86) is fixedly connected to one side of the rotating wheel (612).

9. A waterproof structure for a distribution box according to claim 8, characterized in that: Both ends of the push rod (83) are rotatably connected to ball bearings (87).

10. A waterproof structure for a distribution box according to claim 8, characterized in that: An elastic cloth (88) is fixedly connected to one side of the two rotating plates (82) that are close to each other.

Images