Purification box for mobile public toilet

Abstract

The utility model discloses a ventilation and purification device for a mobile public toilet, which relates to the technical field of ventilation and purification and comprises a public toilet body, two rotating doors are rotatably mounted at the front end of the public toilet body, ventilation openings are formed in the front ends of the two rotating doors, a first handle is arranged above the ventilation openings, and a second handle is arranged above the ventilation openings. The first handle is fixedly installed at the front end of the rotating door, a shielding plate is arranged at the upper end of the outer surface of the public toilet body, and first guide pipes are fixedly installed in the left side and the right side of the upper end of the public toilet body; vitiated air in the public toilet body is conveyed into the purification box through the suction hood, the first guide pipe, the connecting pipe and the second guide pipe by utilizing the suction fan, and the vitiated air is purified through the activated carbon filter, the HEPA filter and the photocatalyst filter in the purification box; and the exhaust fan exhausts purified air into the environment, so that the air quality can be improved, harmful substances and peculiar smells are reduced, and the comfort level and the health level of the living or working environment are improved.

Description

Technical Field

[0001] This utility model application is a divisional application of the utility model patent application filed on August 26, 2024, with application number 202422065010.5 and titled "A Ventilation and Purification Device for a Mobile Public Toilet".

[0002] This utility model relates to the field of ventilation and purification technology, specifically to a ventilation and purification device for mobile public toilets. Background Technology

[0003] Portable toilets are portable sanitation facilities that can be moved between different locations without being restricted by any work environment. They are designed to provide temporary or long-term sanitation solutions, especially in environments where fixed sanitation facilities are lacking.

[0004] Most portable toilets are equipped with exhaust fans to expel the stale air. However, without proper gas treatment, the expelled stale air may emit unpleasant odors, affecting the air quality of the surrounding environment and the comfort of residents. Therefore, this solution provides a ventilation and purification device for portable toilets to address the aforementioned problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, a ventilation and purification device for mobile public toilets is provided. This technical solution addresses the issue mentioned in the background art that most mobile public toilets are equipped with exhaust fans to expel the polluted air from the toilet. However, without proper gas treatment, the discharged polluted air may emit unpleasant odors, affecting the air quality of the surrounding environment and the comfort of residents.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a ventilation and purification device for a mobile public toilet, comprising a toilet body, two rotating doors rotatably mounted on the front end of the toilet body, each rotating door having a ventilation opening at its front end, a first handle above the ventilation opening, the first handle being fixedly mounted on the front end of the rotating door, a baffle plate being provided on the upper part of the outer surface of the toilet body, and first conduits being fixedly installed inside the upper left and right sides of the toilet body, the lower ends of the two first conduits extending into the interior of the toilet body and fixedly connected to an air suction hood, the two first conduits... The other end of the pipe is connected to both ends of the connecting pipe. The connecting pipe is located above the public toilet body. The rear end of the connecting pipe is fixedly connected to a second conduit. The rear end of the first conduit is fixedly connected to a purification box. The lower end of the purification box is fixedly connected to the upper end of the public toilet body. Several sets of limiting grooves are opened on both the upper and lower sides of the inside of the purification box. Fixed frames are slidably connected inside the several sets of limiting grooves. Activated carbon filters, HEPA filters and photocatalytic filters are arranged sequentially from front to back inside the several fixed frames. A second handle is fixedly installed on the left end of the several fixed frames.

[0007] Preferably, a suction fan is provided at the rear of the purification box, the lower end of the suction fan is fixedly connected to the upper end of the public toilet body, the input end of the suction fan is fixedly connected to a third duct, and the front end of the third duct is connected to the interior of the purification box.

[0008] Preferably, ventilation holes are provided at both the left and right ends of the public toilet body, and mounting frames are fixedly connected to the outside of the two ventilation holes. An electric fan is installed inside the mounting frame, and a dustproof plate is fixedly connected to the outside of the mounting frame.

[0009] Preferably, a fixing block is fixedly connected to each of the four outer corners of the mounting frame, a sliding rod is fixedly connected between the two front fixing blocks, a threaded rod is rotatably installed between the two rear fixing blocks, and a servo motor is fixedly installed at the upper end of the upper rear fixing block.

[0010] Preferably, the output end of the servo motor passes through the upper fixing block at the rear end and is fixedly connected to the upper end of the threaded rod. A cleaning block is threadedly connected to the outer surface of the threaded rod. The front end of the cleaning block is slidably connected to the outer surface of the slide rod. A cleaning brush is fixedly connected to the inner side of the cleaning block. The cleaning brush abuts against the outer side of the mounting frame.

[0011] Preferably, fixed posts are fixedly connected to the four corners of the lower end of the public toilet body. The lower end of the fixed post is provided with an anti-slip pad. An installation groove is opened at the bottom of the fixed post. An electric telescopic rod is fixedly connected to the top of the inner wall of the installation groove.

[0012] Preferably, the output end of the electric telescopic rod is fixedly connected to a movable plate, the movable plate is slidably connected inside the mounting groove, and the bottom of the movable plate is fixedly connected to a caster wheel.

[0013] Compared with the prior art, this utility model provides a ventilation and purification device for mobile public toilets, which has the following beneficial effects:

[0014] The system uses a suction fan to transport the polluted air inside the public toilet through a suction hood, a first duct, a connecting pipe, and a second duct to the interior of the purification chamber. The polluted air is then purified by activated carbon filters, HEPA filters, and photocatalytic filters inside the purification chamber. The exhaust fan then discharges the purified air into the environment, which can improve air quality, reduce harmful substances and odors, and enhance the comfort and health of the living or working environment.

[0015] An electric fan delivers outside air into the toilet, while a dustproof panel blocks airborne dust and particles, preventing them from entering the toilet and effectively reducing dust accumulation. This improves the internal environment of the toilet and prevents pollution. After prolonged use, a servo motor drives a threaded rod to rotate, which in turn drives a cleaning brush on the inside of the cleaning block to clean the dustproof panel, preventing excessive accumulation of dust and impurities. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal structure of the toilet body in this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the suction fan in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the purification box in this utility model;

[0020] Figure 5 This is a schematic diagram of the internal structure of the mounting frame in this utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the cleaning block in this utility model;

[0022] Figure 7 This is a schematic diagram of the internal structure of the fixed pile in this utility model.

[0023] The numbers on the map are:

[0024] 1. Toilet body; 2. Revolving door; 3. Ventilation opening; 4. First handle; 5. Partition; 6. First conduit; 7. Suction hood; 8. Connecting pipe; 9. Second conduit; 10. Purification box; 11. Limiting groove; 12. Fixing frame; 13. Activated carbon filter; 14. HEPA filter; 15. Photocatalytic filter; 16. Second handle; 17. Third conduit; 18. Suction fan; 19. Ventilation hole; 20. Mounting frame; 21. Electric fan; 22. Dustproof plate; 23. Fixing block; 24. Sliding rod; 25. Threaded rod; 26. Cleaning block; 27. Cleaning brush; 28. Servo motor; 29. ​​Fixing post; 30. Mounting groove; 31. Electric telescopic rod; 32. Movable plate; 33. Anti-slip mat; 34. Casters. Detailed Implementation

[0025] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0026] Reference Figure 1-7As shown, a ventilation and purification device for a portable public toilet includes a toilet body 1. Two rotating doors 2 are rotatably mounted on the front end of the toilet body 1. Each rotating door 2 has a ventilation opening 3 at its front end. The ventilation openings 3 not only help air circulation and reduce air stagnation, thereby reducing odor accumulation and the spread of unpleasant smells, but also help introduce outside air, improving the air quality inside the toilet body 1. A first handle 4 is located above the ventilation opening 3 and is fixedly installed on the front end of the rotating door 2. A baffle 5 is provided on the upper part of the outer surface of the toilet body 1. First conduits 6 are fixedly installed inside the upper left and right sides of the toilet body 1. The lower ends of the two first conduits 6 extend into the interior of the toilet body 1 and are fixedly connected to an air intake hood 7. The toilet body 1 has two compartments inside, each with an air intake hood 7 at its upper end. The other ends of the two first conduits 6 are respectively connected to both ends of a connecting pipe 8 located above the toilet body 1. A second conduit 9 is fixedly connected to the rear end of the connecting pipe 8. A purification box 10 is fixedly connected to the rear end of the first conduits 6. The lower end of the purification box 10 is fixedly connected to the upper end of the public toilet body 1. Several sets of limiting grooves 11 are opened on both the upper and lower sides of the purification box 10. Fixed frames 12 are slidably connected inside the sets of limiting grooves 11. Activated carbon filter 13, HEPA filter 14 and photocatalytic filter 15 are arranged sequentially from front to back inside the sets of fixed frames 12. Activated carbon filter 13 can adsorb odors and harmful gases. It captures odor molecules through its porous structure, significantly reducing unpleasant odors in the air. HEPA filter 14 can effectively capture tiny particles in the air, improving air cleanliness. Photocatalytic filter 15 uses photocatalytic reaction to decompose harmful substances. It converts harmful gases into harmless substances through photocatalytic materials, further purifying the air. A second handle 16 is fixedly installed on the left end of each of the sets of fixed frames 12. A suction fan 18 is provided on the rear side of the purification box 10. The lower end of the suction fan 18 is fixedly connected to the upper end of the public toilet body 1. A third duct 17 is fixedly connected to the input end of the suction fan 18. The front end of the third duct 17 is connected to the interior of the purification box 10.

[0027] Reference Figure 2-7As shown, ventilation holes 19 are provided at both ends of the public toilet body 1. A mounting frame 20 is fixedly connected to the outside of each ventilation hole 19. An electric fan 21 is installed inside the mounting frame 20. A dustproof plate 22 is fixedly connected to the outside of the mounting frame 20 to block dust and particulate matter in the air, preventing them from entering the public toilet body 1 and polluting the environment. Fixing blocks 23 are fixedly connected to the four corners of the outside of the mounting frame 20. The two front fixing blocks 23 are fixedly connected together. A sliding rod 24 is fixedly connected to the upper rear fixed block 23. A threaded rod 25 is rotatably installed between the two fixed blocks 23 on the rear side. A servo motor 28 is fixedly installed at the upper end of the upper rear fixed block 23. The output end of the servo motor 28 passes through the upper rear fixed block 23 and is fixedly connected to the upper end of the threaded rod 25. A cleaning block 26 is threadedly connected to the outer surface of the threaded rod 25. The front end of the cleaning block 26 is slidably connected to the outer surface of the sliding rod 24. A cleaning brush 27 is fixedly connected to the inner side of the cleaning block 26. The cleaning brush 27 abuts against the outer side of the mounting frame 20. The servo motor 28 is connected to the upper rear fixed block 23 and fixedly connected to the upper end of the threaded rod 25. The motor 28 drives the threaded rod 25 to rotate, which in turn moves the cleaning block 26 and the cleaning brush 27 to clean the dust and particles accumulated on the surface of the dustproof plate 22. Fixed posts 29 are fixedly connected to the four corners of the lower end of the public toilet body 1. Anti-slip pads 33 are provided at the lower end of the fixed posts 29. When the electric telescopic rod 31 moves the caster wheel 34 into the mounting groove 30, the anti-slip pads 33 at the lower end of the fixed posts 29 contact the ground, increasing the friction between the public toilet body 1 and the ground and preventing the public toilet body from slipping. 1. Sliding, thereby improving safety and stability. The bottom of the fixed pile 29 is provided with an installation groove 30. An electric telescopic rod 31 is fixedly connected to the top of the inner wall of the installation groove 30. A movable plate 32 is fixedly connected to the output end of the electric telescopic rod 31. The movable plate 32 is slidably connected to the inside of the installation groove 30. A universal wheel 34 is fixedly connected to the bottom of the sliding plate. When it is necessary to move the public toilet body 1, the four electric telescopic rods 31 extend at the same time, driving the movable plate 32 to move downward until the universal wheel 34 extends out of the installation groove 30.

[0028] The working principle and usage process of this utility model are as follows: Specifically, the suction fan 18, electric fan 21, servo motor 28, and electric telescopic rod 31 are all electrically connected to an external controller. When it is necessary to purify the polluted air inside the public toilet body 1, the suction fan 18 is activated, and the polluted air is transported to the interior of the purification box 10 through the suction hood 7, the first conduit 6, the connecting pipe 8, and the second conduit 9. The polluted air transported into the purification box 10 passes sequentially through the activated carbon filter 13, the HEPA filter 14, and the photocatalytic filter 15. The activated carbon filter 13 removes odors and volatile organic compounds, and the HEPA filter 14 removes odors and volatile organic compounds. 4. The photocatalytic filter 15 captures particulate matter in the air and treats residual gaseous pollutants. The exhaust fan discharges the purified air into the environment. After long-term use, the filtration effect of the activated carbon filter 13, HEPA filter 14 and photocatalytic filter 15 will decrease. At this time, the fixing frame 12 is removed from the limiting groove 11 inside the purification box 10 by using the second handle 16. The activated carbon filter 13, HEPA filter 14 and photocatalytic filter 15 in the fixing frame 12 are replaced to prevent the inability to effectively remove odors, fine particulate matter and residual gaseous pollutants in the polluted air due to the decrease in filtration effect.

[0029] An electric fan 21 installed inside the mounting frame 20 draws outside air into the toilet body 1. A dustproof plate 22 blocks dust and particulate matter from entering the toilet body 1 and polluting the environment. After prolonged use, a lot of dust and particulate matter will accumulate on the dustproof plate 22, causing it to become clogged. The servo motor 28 rotates the electric threaded rod 25, which drives the cleaning block 26 downward. This, in turn, drives the cleaning brush 27 on the inner side of the cleaning block 26 downward to clean the dust and particulate matter accumulated on the outer surface of the dustproof plate 22.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A purification tank for mobile public lavatories, characterized in that: The toilet includes a main body (1), with two rotating doors (2) rotatably installed at the front end of the main body (1). Ventilation openings (3) are provided at the front ends of both rotating doors (2). A first handle (4) is provided above the ventilation openings (3), and the first handle (4) is fixedly installed at the front end of the rotating doors (2). A baffle plate (5) is provided on the upper part of the outer surface of the main body (1). First conduits (6) are fixedly installed inside the upper left and right sides of the main body (1). The lower ends of the two first conduits (6) extend into the interior of the main body (1) and are fixedly connected to an air intake hood (7). The other ends of the two first conduits (6) are respectively connected to both ends of a connecting pipe (8). The connecting pipe (8) is located above the main body (1). A second conduit (9) is fixedly connected to the rear end of the connecting pipe (8). The rear end of the first conduit (6) is fixedly connected to the second conduit (9). A purification box (10) is fixedly connected to the upper end of the public toilet body (1). Several sets of limiting grooves (11) are opened on both the upper and lower sides of the purification box (10). A fixed frame (12) is slidably connected inside the several sets of limiting grooves (11). An activated carbon filter (13), a HEPA filter (14) and a photocatalyst filter (15) are arranged in sequence from front to back inside the several fixed frames (12). A second handle (16) is fixedly installed on the left end of the several fixed frames (12). A suction fan (18) is provided on the rear side of the purification box (10). The lower end of the suction fan (18) is fixedly connected to the upper end of the public toilet body (1). A third conduit (17) is fixedly connected to the input end of the suction fan (18). The front end of the third conduit (17) is connected to the inside of the purification box (10). Ventilation holes (19) are provided through both the left and right ends of the public toilet body (1). An installation frame (20) is fixedly connected to the outside of the two ventilation holes (19). An electric fan (21) is installed inside the installation frame (20). A dustproof plate (22) is fixedly connected to the outside of the installation frame (20). The public toilet body (1) is fixedly connected to four corners at the bottom of each fixed post (29). The bottom of each fixed post (29) is provided with an anti-slip pad (33). The bottom of each fixed post (29) is provided with an installation groove (30). An electric telescopic rod (31) is fixedly connected to the top of the inner wall of the installation groove (30).

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