A box structure that is rainproof and dustproof

Abstract

The present invention discloses a box structure for rain and dust protection, particularly relating to the technical field of box structures, including a box shell, box side plates, top side plates and connecting plates. There are two box side plates in total, and the two box side plates are symmetrically and seamlessly welded to the left and right ends of the box shell. Through the fan, outside air can be inhaled into the air duct through the air inlet. At this time, the rain shield can prevent the rain dripping from top to bottom from entering the air duct, and the water droplets inhaled into the air duct through the air inlet will hit the inner wall of the air duct. At the same time, the dust in the air will be filtered by the filter screen. In this way, the water droplets and dust can both fall down and flow out along the inclination of the bottom of the air duct towards the outlet. In this way, while dissipating heat inside the box shell, rain and dust are prevented from entering the box shell, thus playing the role of rain and dust protection for the box shell, and solving the problems that in rainy days, rainwater easily enters the box through the heat dissipation channel, and dust also easily enters the box through the heat dissipation channel in the existing box structure.

Description

Technical Field

[0001] The present invention relates to the technical field of box structures, and particularly to a box structure that is rainproof and dustproof. Background Art

[0002] Boxes are generally used as carriers for some electronic accessories, such as distribution boxes. Generally, switchgear, measuring instruments, protective electrical appliances, and auxiliary equipment are assembled in a closed or semi-closed metal cabinet or on a panel. Since boxes are generally installed outdoors, the rainproof and dustproof performance of the entire box structure is very important. For the current box structure, when installed and used outdoors, heat dissipation channels are generally opened on the front or side of the box to ensure heat dissipation. In this way, rainwater can easily enter the box through the heat dissipation channels on rainy days, and dust can also easily enter the box through the heat dissipation channels, resulting in short-circuit failures of the electronic accessories inside the box. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a box structure that is rainproof and dustproof, solving the problem that in the existing box structure, rainwater can easily enter the box through the heat dissipation channels on rainy days, and dust can also easily enter the box through the heat dissipation channels.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a rainproof and dustproof box structure, including a box shell, box side plates, top side plates and connecting plates. There are two box side plates in total, and the two box side plates are symmetrically and seamlessly welded to the left and right ends of the box shell. There are two top side plates in total, and the top side plates are correspondingly and seamlessly welded to the upper ends of the box side plates. The top side plates are seamlessly welded to the box shell. At least ten air inlets are vertically and evenly penetrated through the middle and lower parts of each box side plate away from the box shell. At least ten rain shields are vertically and evenly fixed to the middle and lower parts of each box side plate away from the box shell. The rain shields correspond to the air inlets one by one. At least five flow outlets are horizontally and evenly opened from front to back at the lower end of each box side plate. There are two connecting plates in total, and the connecting plates are correspondingly and seamlessly welded to one end of the box side plate close to the box shell. An air duct is opened at one end of each connecting plate close to the box side plate. A hollow partition is fixed in the middle of each air duct. A filter screen is arranged inside each hollow partition. An air outlet is penetrated through the upper side of one end of each air duct close to the box shell. A fan mounting plate is connected to the inside of each air outlet by screws. Fans are embedded and installed on the front and rear sides of one end of each fan mounting plate close to the box shell. A sealing frame is fixed below the hollow partition inside each air duct. A frame opening is vertically penetrated from top to bottom in the middle of each sealing frame. A switching power supply is installed at one end of the left top side plate close to the box shell. A water level sensor is embedded and arranged at the front side of the lower end of each sealing frame. An inner cavity is provided inside the rear side of each sealing frame. Bearings are provided on the upper and lower sides of the inner wall at the rear end of each inner cavity. A shaft rod is rotatably connected to the front end of each bearing. The front end of the shaft rod penetrates through the frame opening and is rotatably connected to the frame opening. A worm gear is fixed to the outer rear side of each shaft rod. A motor is fixedly installed at the rear side of one end of each sealing frame close to the box shell. The motor penetrates through the connecting plate. A motor shaft is rotatably connected to the middle of one end of each motor close to the sealing frame. A worm is connected to the end of each motor shaft. The end of the worm penetrates into the inner cavity on the same side. The worm is located between the two worm gears on the same vertical line and is in transmission connection with the worm gears. A sealing plate is fixed to the middle of the outer side of each shaft rod. The sealing plate is rotatably connected to the frame opening.

[0005] On the basis of the above technical solution, the bottom end of the air duct is inclined downward at an angle of 30 degrees to 60 degrees on the side close to the box side plate.

[0006] On the basis of the above technical solution, the rain shield has a hollow triangular prism structure, and the lower end of the rain shield is an open end.

[0007] On the basis of the above technical solution, the width of the hollow partition is equal to the grooving depth of the air duct, the length of the hollow partition is equal to the grooving width of the air duct, the width of the sealing frame is equal to the grooving depth of the air duct, and the length of the sealing frame is equal to the grooving width of the air duct.

[0008] On the basis of the above technical solution, sealing sleeves are embedded on the upper and lower sides at the front and rear ends of the inner wall of the frame opening, and the shaft rod passes through the front and rear two sealing sleeves on the same horizontal line.

[0009] On the basis of the above technical solution, motor brackets are fixed on the front and rear sides of the end of the motor close to the sealing frame, and the motor brackets are fixedly connected to the sealing frame.

[0010] On the basis of the above technical solution, the length and width of the sealing plate correspond to and are equal to the length and width of the frame opening one by one.

[0011] On the basis of the above technical solution, both the blower and the motor are electrically connected to the switching power supply, the water level sensor is connected to the switching power supply, and the water level sensor is respectively in signal connection with the blower and the motor through the switching power supply.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: For this rainproof and dustproof box structure, through the blower, outside air can be sucked into the interior of the air duct through the air inlet. At this time, the rain shield can prevent rain dripping from top to bottom from entering the air duct, and the water droplets sucked into the air duct through the air inlet will hit the inner wall of the air duct. At the same time, the dust in the air will be filtered by the filter net, so that the water droplets and dust can both fall downward and flow out along the inclination of the bottom of the air duct toward the outlet. In this way, while dissipating heat inside the box shell, rainwater and dust are prevented from entering the box shell, thus playing a role in rainproof and dustproof for the box shell; when the box shell is placed in a low-lying area, the rainwater dripping on the ground will rise and soak into the interior of the air duct. When the rainwater rises to the position of the water level sensor, the water level sensor will come into contact with water and sense it. The water level sensor can start the motor to drive the motor shaft to rotate, and at the same time, cut off the current of the blower. At this time, the worm rotates to drive the worm gear to rotate, so that the worm gear drives the shaft rod to rotate, and the shaft rod can drive the sealing plate to rotate. When the sealing plate rotates 90 degrees from the vertical state and presents a horizontal state, the frame opening of the sealing frame can be sealed by the sealing plate, so that the sealing frame can prevent the rainwater from rising further in the air duct, thus avoiding the accumulated rainwater from entering the box shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the whole of the present invention;

[0014] Figure 2 It is a schematic diagram of the side plate of the box of the present invention;

[0015] Figure 3 Schematic diagram of the assembly of the box side plate of the present invention;

[0016] Figure 4 Schematic diagram of removing the rain shield from the box side plate of the present invention;

[0017] Figure 5 Schematic diagram of the left end cross-section of the sealing frame of the present invention;

[0018] Figure 6 Schematic diagram of the upper end cross-section of the sealing frame of the present invention.

[0019] In the figure: 1 - box shell, 2 - box side plate, 3 - top side plate, 4 - rain shield, 5 - outflow port, 6 - connecting plate, 7 - switching power supply, 8 - fan, 9 - fan mounting plate, 10 - air duct, 11 - air outlet, 12 - hollow partition board, 13 - filter screen, 14 - sealing frame, 15 - water level sensor, 16 - air inlet, 17 - inner cavity, 18 - bearing, 19 - shaft rod, 20 - worm, 21 - worm gear, 22 - sealing sleeve, 23 - sealing plate, 24 - frame opening, 25 - motor, 26 - motor shaft, 27 - motor frame. Specific embodiments

[0020] The following describes the preferred embodiments of the present invention with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0021] Please refer to Figure 1-6, the present invention provides a technical solution: a rainproof and dustproof box structure, including a box shell 1, box side plates 2, top side plates 3 and connecting plates 6. There are two box side plates 2 in total, and the two box side plates 2 are symmetrically and seamlessly welded to the left and right ends of the box shell 1. There are two top side plates 3 in total, and the top side plates 3 are correspondingly and seamlessly welded to the upper ends of the box side plates 2. The top side plates 3 are seamlessly welded to the box shell 1. At least ten air inlets 16 are vertically and evenly penetrated through the middle and lower parts of each box side plate 2 away from the box shell 1. At least ten rain shields 4 are vertically and evenly fixed to the middle and lower parts of each box side plate 2 away from the box shell 1. The rain shields 4 correspond to the air inlets 16 one by one. At least five flow outlets 5 are horizontally and evenly opened from front to back at the lower end of each box side plate 2. There are two connecting plates 6 in total, and the connecting plates 6 are correspondingly and seamlessly welded to one end of the box side plates 2 close to the box shell 1. An air duct 10 is opened at one end of each connecting plate 6 close to the box side plate 2. A hollow partition 12 is fixed in the middle of each air duct 10. A filter screen 13 is arranged inside each hollow partition 12. An air outlet 11 is penetrated through the upper side of one end of each air duct 10 close to the box shell 1. A fan mounting plate 9 is connected to each air outlet 11 by screws. Fans 8 are embedded and installed on the front and rear sides of one end of each fan mounting plate 9 close to the box shell 1. A sealing frame 14 is fixed below the hollow partition 12 inside each air duct 10. A frame opening 24 is penetrated from top to bottom in the middle of each sealing frame 14. A switching power supply 7 is installed at one end of the left top side plate 3 close to the box shell 1. The bottom end of the air duct 10 inclines downward at an angle of 30 degrees to 60 degrees on the side close to the box side plate 2. The rain shield 4 has a hollow triangular prism structure, and the lower end of the rain shield 4 is an open end. The width of the hollow partition 12 is equal to the grooving depth of the air duct 10. The length of the hollow partition 12 is equal to the grooving width of the air duct 10. The width of the sealing frame 14 is equal to the grooving depth of the air duct 10. The length of the sealing frame 14 is equal to the grooving width of the air duct 10. A water level sensor 15 is embedded at the front side of the lower end of each sealing frame 14. An inner cavity 17 is provided inside the rear side of each sealing frame 14. Bearings 18 are provided on the upper and lower sides of the rear end inner wall of each inner cavity 17. A shaft rod 19 is rotatably connected to the front end of each bearing 18. The front end of the shaft rod 19 penetrates through the frame opening 24 and is rotatably connected to the frame opening 24. A worm gear 21 is fixed to the outer rear side of each shaft rod 19. A motor 25 is fixedly installed at the rear side of one end of each sealing frame 14 close to the box shell 1. The motor 25 is penetrated through the connecting plate 6. A motor shaft 26 is rotatably connected to the middle of one end of each motor 25 close to the sealing frame 14. A worm 20 is connected to the end of each motor shaft 26. The end of the worm 20 penetrates into the inner cavity 17 on the same side.The worm gear 20 is located between two of the worm wheels 21 on the same vertical line and is in transmission connection with the worm wheels 21. A sealing plate 23 is fixed in the middle of the outer part of each shaft rod 19. The sealing plate 23 is rotatably connected to the frame opening 24. The length and width of the sealing plate 23 correspond to and are equal to the length and width of the frame opening 24 respectively. The blower 8 and the motor 25 are both electrically connected to the switching power supply 7. The water level sensor 15 is connected to the switching power supply 7. The water level sensor 15 is respectively in signal connection with the blower 8 and the motor 25 through the switching power supply 7. First, through the blower 8 in the blower mounting plate 9, outside air can be inhaled into the air duct 10 through the air inlet 16. At this time, the rain shield 4 can prevent rainwater dripping from top to bottom from entering the air duct 10, and the air enters the air inlet 16 through the opening at the lower end of the rain shield 4. The water droplets inhaled into the air duct 10 through the air inlet 16 will hit the inner wall of the air duct 10. At the same time, the dust in the air will be filtered by the filter screen 13 in the hollow partition 12, so that the inhaled air can be inhaled into the casing 1 along the air outlet 11 for heat dissipation inside the casing 1. In this way, the water droplets and dust can both fall downward and flow out along the inclination of the bottom of the air duct 10 to the outlet 5. In this way, while dissipating heat inside the casing 1, rainwater and dust can be prevented from entering the inside of the casing 1, thus playing a role in rain and dust protection for the casing 1.,

[0022] When the casing 1 is placed in a low-lying area, the rainwater dripping on the ground will rise and infiltrate into the air duct 10. When the rainwater rises to the position of the water level sensor 15 inside the air duct, the water level sensor 15 will come into contact with the water and sense the water level signal. At this time, the water level sensor 15 can start the motor 25 to drive the motor shaft 26 to rotate. At the same time, the blower 8 is powered off. At this time, the worm gear 20 is driven by the motor shaft 26 to rotate, so that the worm gear 20 drives the upper and lower two worm wheels 21 to rotate between the worm wheels 21. In this way, the worm wheel 21 drives the shaft rod 19 to rotate through the bearing 18, so that the shaft rod 19 drives the sealing plate 23 to rotate inside the frame opening 24.

[0023] When the sealing plate 23 rotates 90 degrees from the vertical state to the horizontal state, the frame opening 24 of the sealing frame 14 can be sealed by the sealing plate 23. In this way, the sealing frame 14 can prevent the rainwater from rising further inside the air duct 10, thus avoiding the accumulated rainwater from entering the casing 1.

[0024] When the sealing plate 23 rotates 90 degrees from the horizontal state to the vertical state, the inhaled air can pass through the frame opening 24 of the sealing frame 14.

[0025] Preferably, sealing sleeves 22 are embedded on the upper and lower sides at the front and rear ends of the inner wall of the frame opening 24. The shaft rod 19 passes through the front and rear two sealing sleeves 22 on the same horizontal line. Through the sealing sleeves 22, the sealing performance between the shaft rod 19 and the frame opening 24 can be improved.

[0026] Preferably, motor brackets 27 are fixed to both the front and rear sides of the end of the motor 25 close to the sealing frame 14, and the motor brackets 27 are fixedly connected to the sealing frame 14. The motor brackets 27 can play a role in fixing the motor 25.

[0027] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A box structure for rain and dust protection, comprising a box shell (1), box side plates (2), top side plates (3) and connecting plates (6). There are two box side plates (2), and the two box side plates (2) are symmetrically and seamlessly welded to the left and right ends of the box shell (1). There are two top side plates (3), and the top side plates (3) are correspondingly and seamlessly welded to the upper ends of the box side plates (2). The top side plates (3) are seamlessly welded to the box shell (1). It is characterized in that: At least ten air inlets (16) are vertically and evenly penetrated through the middle and lower parts of each box side plate (2) at the end far from the box shell (1). At least ten rain shields (4) are vertically and evenly fixed to the middle and lower parts of each box side plate (2) at the end far from the box shell (1). The rain shields (4) correspond to the air inlets (16) one by one. At least five outflow ports (5) are horizontally and evenly opened from front to back at the lower end of each box side plate (2). There are two connecting plates (6), and the connecting plates (6) are correspondingly and seamlessly welded to one end of the box side plates (2) close to the box shell (1). An air duct (10) is opened at one end of each connecting plate (6) close to the box side plate (2). A hollow partition plate (12) is fixed in the middle of each air duct (10). A filter screen (13) is arranged inside each hollow partition plate (12). An air outlet (11) is penetrated through the upper side of one end of each air duct (10) close to the box shell (1). A fan mounting plate (9) is connected by screws inside each air outlet (11). Fans (8) are embedded and installed on the front and rear sides of one end of each fan mounting plate (9) close to the box shell (1). A sealing frame (14) is fixed below the hollow partition plate (12) inside each air duct (10). A frame opening (24) is penetrated from top to bottom in the middle of each sealing frame (14). A switching power supply (7) is installed at one end of the left top side plate (3) close to the box shell (1). A water level sensor (15) is embedded at the front side of the lower end of each of the sealing frames (14). An inner cavity (17) is provided inside the rear side of each of the sealing frames (14). Bearings (18) are provided on the upper and lower sides at the rear end of the inner wall of each of the inner cavities (17). A shaft rod (19) is rotatably connected to the front end of each of the bearings (18). The front end of the shaft rod (19) passes through the frame opening (24) and is rotatably connected to the frame opening (24). A worm gear (21) is fixedly installed on the outer rear side of each of the shaft rods (19). A motor (25) is fixedly installed on the rear side of each of the sealing frames (14) close to one end of the box shell (1). The motor (25) is arranged through the connecting plate (6). A motor shaft (26) is rotatably connected to the middle of one end of each of the motors (25) close to the sealing frame (14). A worm (20) is connected to the end of each of the motor shafts (26). The end of the worm (20) penetrates into the inner part of the inner cavity (17) on the same side. The worm (20) is located between two worm gears (21) on the same vertical line and is in transmission connection with the worm gears (21). A sealing plate (23) is fixedly installed in the middle of the outer part of each of the shaft rods (19). The sealing plate (23) is rotatably connected to the frame opening (24). The water level sensor (15) is respectively in signal connection with the blower (8) and the motor (25) through the switching power supply (7). When the water level sensor (15) detects that the water level reaches a preset threshold value, the motor (25) is triggered to drive the sealing plate (23) to rotate 90 degrees to the horizontal sealing position, and at the same time, the blower (8) is turned off.

2. The box body structure according to claim 1, characterized in that: The inner bottom end of the air duct (10) inclines downward at an angle of 30 degrees to 60 degrees on the side close to the box side plate (2).

3. The box body structure according to claim 1, characterized in that: The rain shield (4) has a hollow triangular prism structure, and the lower end of the rain shield (4) is an open end.

4. The box body structure according to claim 1, characterized in that: The width of the hollow partition board (12) is equal to the grooving depth of the air duct (10), the length of the hollow partition board (12) is equal to the grooving width of the air duct (10), the width of the sealing frame (14) is equal to the grooving depth of the air duct (10), and the length of the sealing frame (14) is equal to the grooving width of the air duct (10).

5. The box body structure according to claim 1, characterized in that: Sealing sleeves (22) are embedded on the upper and lower sides at the front and rear ends of the inner wall of the frame opening (24). The shaft rod (19) passes through the front and rear two sealing sleeves (22) on the same horizontal line.

6. The box body structure according to claim 1, characterized in that: Motor brackets (27) are fixedly installed on the front and rear sides of one end of the motor (25) close to the sealing frame (14). The motor brackets (27) are fixedly connected to the sealing frame (14).

7. The box body structure according to claim 1, characterized in that: The length and width of the sealing plate (23) are respectively equal to the length and width of the frame opening (24).

Images