Public washroom purification and deodorization device based on efficient activated carbon

Abstract

The invention discloses a public washroom purification and deodorization device based on efficient activated carbon, and relates to the technical field of public washroom gas treatment.The public washroom purification and deodorization device comprises a treatment tank and an activated carbon assembly, a door plate is hinged to the side face of the treatment tank, and the activated carbon assembly comprises a driving motor fixed to the interior of the treatment tank through a support; loosening strips are fixed to the two sides of the movable rod. According to the purification and deodorization device for the public washroom based on the efficient activated carbon, the interior of a fan-shaped sealing box is not completely filled with activated carbon particles, and when a driving motor drives a connecting piece, a sliding rail support and the fan-shaped sealing box to rotate slowly, the activated carbon particles roll and turn over in the fan-shaped sealing box under the rotation effect and the gravity effect; continuous updating of an adsorption surface is realized, and the adsorption efficiency and the service life of the activated carbon are greatly improved; meanwhile, when the movable wheels roll along the fluctuation blocks, the movable rods drive the loosening strips to do piston type reciprocating motion, the activated carbon particles are further loosened, caking of the activated carbon particles is effectively prevented, and rolling smoothness is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of public restroom gas treatment technology, specifically a purification and deodorization device for public restrooms based on high-efficiency activated carbon. Background Technology

[0002] As public infrastructure, public restrooms are frequently used and have poor air circulation, which can easily produce odorous gases such as ammonia and hydrogen sulfide. This not only affects the user experience but also easily breeds bacteria, causing adverse effects on the public health environment. Currently, public restroom purification and deodorization devices on the market use fixed activated carbon filter plates for adsorption and deodorization.

[0003] Existing purification and deodorization devices use an integral structure for their activated carbon filter plates, which keep the activated carbon in a fixed state. The adsorption surface is prone to rapid saturation and clumping after long-term use, resulting in a significant decrease in adsorption efficiency. In addition, since the activated carbon is contained in the device, it is often equipped with a large-area protective filter screen. The activated carbon particles are prone to breakage and powdering during use, and the powder can easily pass through the large-area mesh and leak out, causing activated carbon loss and affecting the internal pipelines of the device. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a purification and deodorization device for public restrooms based on high-efficiency activated carbon, which solves the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a purification and deodorization device for public restrooms based on high-efficiency activated carbon, comprising a treatment tank and an activated carbon assembly. A door panel is hinged to the side of the treatment tank. The activated carbon assembly includes a drive motor fixed inside the treatment tank via a bracket, and a connector is fixed to the output end of the drive motor. A slide rail bracket is fixed to the outer wall of the connector, and a fan-shaped sealing box is embedded inside the slide rail bracket. A filter exhaust hole is provided on the back side of the fan-shaped sealing box, and the inside of the fan-shaped sealing box is filled with activated carbon particles. A spring tube is fixed through the center of the side of the fan-shaped sealing box, and a movable rod is inserted inside the spring tube. Loose strips are fixed to both sides of the movable rod, and a movable wheel is provided at the outer end of the movable rod. A wavy block is annularly arranged on the outer side of the fan-shaped sealing box, on the inner wall of the treatment tank, and on the inner side of the door panel. The wavy block is of rubber structure, hollow inside, and connected to a pipe embedded inside the treatment tank. A solenoid valve is provided at the connection between the pipe and the wavy block, and a bidirectional air pump is connected to the end of the pipe.

[0006] Furthermore, the two ends of the side of the fan-shaped sealing box are fixedly connected to the end of the slide rail bracket by bolts, and the amount of activated carbon particles injected does not fill the interior of the fan-shaped sealing box.

[0007] Furthermore, the fan-shaped sealing box is provided with a plug tube on the side near the connector, and the plug tube is inserted into the connector.

[0008] Furthermore, an air outlet pipe is provided on the inner wall side of the fan-shaped sealing box, and the end of the air outlet pipe is submerged in the activated carbon particles.

[0009] Furthermore, the loose strip and the movable rod are elastically connected to the sector-shaped sealing box through the spring inside the spring tube, and the loose strip does not contact the inner wall of the sector-shaped sealing box.

[0010] Furthermore, a gas supply pipe is rotatably connected to the side of the connector, and the end of the gas supply pipe is connected to the deodorizing chamber, the interior of which is filled with a deodorizing agent.

[0011] Furthermore, a gas-gathering hood is provided on the side of the deodorization chamber away from the gas supply pipe, and the gas-gathering hood is located inside the treatment tank.

[0012] Furthermore, one end of the processing tank is provided with an air inlet, and the other end of the processing tank is provided with an exhaust outlet.

[0013] Furthermore, a filter section is provided between the air inlet and the air-gathering hood, and an air pump is provided inside the air-gathering hood.

[0014] This invention provides a purification and deodorization device for public restrooms based on high-efficiency activated carbon, which has the following beneficial effects:

[0015] 1. This purification and deodorization device for public restrooms based on high-efficiency activated carbon features activated carbon particles that do not completely fill the volume inside the fan-shaped sealed box. When the drive motor slowly rotates the connecting parts, slide rail support, and fan-shaped sealed box, the activated carbon particles roll and flip inside the fan-shaped sealed box under the action of rotation and gravity, achieving continuous renewal of the adsorption surface and significantly improving the adsorption efficiency and service life of the activated carbon. At the same time, when the moving wheel rolls along the undulating block, the moving rod drives the loosening strip to perform a piston-like reciprocating motion, further loosening the activated carbon particles, effectively preventing them from clumping and ensuring smooth rolling.

[0016] 2. This purification and deodorization device for public restrooms based on high-efficiency activated carbon abandons the existing design of large-area protective filters. Instead, a small-area filter is installed only at the exhaust port of the fan-shaped sealed box. This prevents activated carbon particles from falling out and avoids powder from activated carbon breakage from leaking out through the large-area mesh, reducing activated carbon loss. It also prevents powder from entering the device's pipeline and causing blockage. Moreover, the fan-shaped sealed box is an independent modular structure, which is fixed to the slide rail bracket with bolts and connected with plug-in pipes and connectors, making assembly convenient. When the activated carbon particles are saturated, the fan-shaped sealed box can be pulled out of the slide rail bracket for replacement simply by opening the door panel and unscrewing the bolts, without disassembling the entire device, greatly reducing maintenance difficulty and costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of a fan-shaped sealing box of a purification and deodorization device for public restrooms based on high-efficiency activated carbon according to the present invention.

[0018] Figure 2 This is a schematic diagram of the external structure of the treatment tank of a purification and deodorization device for public restrooms based on high-efficiency activated carbon according to the present invention.

[0019] Figure 3 This is a schematic diagram of the gas-gathering hood structure of a purification and deodorization device for public restrooms based on high-efficiency activated carbon according to the present invention.

[0020] Figure 4 This is a schematic diagram of the back structure of the fan-shaped sealing box of the purification and deodorization device for public restrooms based on high-efficiency activated carbon according to the present invention.

[0021] Figure 5 This is a front view schematic diagram of the fan-shaped sealing box of a public restroom purification and deodorization device based on high-efficiency activated carbon according to the present invention.

[0022] In the diagram: 1. Treatment tank; 2. Door panel; 3. Activated carbon assembly; 4. Drive motor; 5. Connector; 6. Slide rail bracket; 7. Fan-shaped sealing box; 8. Filter screen exhaust port; 9. Activated carbon granules; 10. Spring tube; 11. Movable rod; 12. Loose strip; 13. Movable wheel; 14. Fluctuating block; 15. Insert pipe; 16. Air outlet pipe; 17. Gas supply pipe; 18. Deodorization chamber; 19. Gas gathering hood; 20. Air inlet; 21. Exhaust port; 22. Filter screen segment. Detailed Implementation

[0023] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0024] like Figures 1-5As shown, the present invention provides a technical solution: a purification and deodorization device for public restrooms based on high-efficiency activated carbon, comprising a treatment tank 1 and an activated carbon assembly 3. A door panel 2 is hinged to the side of the treatment tank 1. The activated carbon assembly 3 includes a drive motor 4 fixed inside the treatment tank 1 by a bracket, and a connector 5 is fixed to the output end of the drive motor 4. A slide rail bracket 6 is fixed to the outer wall of the connector 5, and a fan-shaped sealing box 7 is embedded inside the slide rail bracket 6. A filter exhaust hole 8 is opened on the back side of the fan-shaped sealing box 7, and activated carbon particles 9 are filled inside the fan-shaped sealing box 7. A spring tube 10 is fixed through and fixed in the middle of the side of the fan-shaped sealing box 7, and a movable rod 11 is inserted inside the spring tube 10. Loose strips 12 are fixed on both sides of the movable rod 11, and a movable wheel 13 is provided at the outer end of the movable rod 11. A undulating block 14 is arranged in a ring on the outer side of the fan-shaped sealing box 7, on the inner wall of the treatment tank 1 and the inner side of the door panel 2, and the undulating block 14 is made of rubber. The structure includes a hollow oscillating block 14 connected to a pipeline embedded inside the treatment tank 1, with a solenoid valve at the connection between the pipeline and the oscillating block 14, and a bidirectional air pump connected to the end of the pipeline. The two ends of the side of the fan-shaped sealing box 7 are fixedly connected to the end of the slide rail bracket 6 by bolts, and the amount of activated carbon particles 9 injected does not fill the interior of the fan-shaped sealing box 7. A plug pipe 15 is provided on the side of the fan-shaped sealing box 7 near the connector 5, and the plug pipe 15 is inserted into the connector 5. An air outlet pipe 16 is provided on the side of the inner wall of the fan-shaped sealing box 7, and the end of the air outlet pipe 16 is submerged in the activated carbon particles 9. The loosening strip 12 and the movable rod 11 are elastically connected to the fan-shaped sealing box 7 through the spring inside the spring tube 10, and the loosening strip 12 does not contact the inner wall of the fan-shaped sealing box 7. A gas supply pipe 17 is rotatably connected to the side of the connector 5, and the end of the gas supply pipe 17 is connected to the deodorizing chamber 18, which is filled with deodorizing agent.

[0025] The specific operation is as follows: when the gas in the public restroom is drawn into the treatment tank 1, it first passes through the deodorization chamber 18 and comes into contact with the deodorizing agent inside to achieve initial deodorization. After initial deodorization, the gas enters the connector 5 along the gas supply pipe 17. The gas flows along the insertion pipe 15 and the pipe embedded in the fan-shaped sealing box 7. Then the gas is discharged from the activated carbon particles 9. The gas flows from the inside to the outside of the activated carbon particles 9 and is finally discharged through the filter exhaust hole 8.

[0026] The activated carbon particles 9 do not fill the inside of the fan-shaped sealed box 7. When the gas enters the fan-shaped sealed box 7, it will fully contact the activated carbon particles 9. During this process, the activated carbon particles 9 perform secondary deodorization on the gas. During the secondary deodorization process, the drive motor 4 drives the connecting piece 5 at a uniform and slow speed, causing the slide rail bracket 6 to carry the fan-shaped sealed box 7 to rotate. During the rotation of the fan-shaped sealed box 7, since the activated carbon particles 9 do not fill its inside, the activated carbon particles 9 will roll and flip inside the fan-shaped sealed box 7 under the action of rotation and gravity, thereby continuously updating the adsorption surface and effectively preventing the activated carbon particles 9 from easily clumping in a fixed state.

[0027] While the fan-shaped sealing box 7 rotates, the movable wheel 13 at the outer end of the movable rod 11 rolls along the surface of the ring-shaped undulating blocks 14. During the rolling process, the movable rod 11 carries the loosening strip 12 and performs piston-like movements inside the fan-shaped sealing box 7. This further enhances the smoothness of the rolling and turning of the activated carbon particles 9. Since the activated carbon particles 9 are inside the fan-shaped sealing box 7, the gas is only discharged through the filter screen exhaust hole 8. The filter screen inside the filter screen exhaust hole 8 can prevent the activated carbon particles 9 from falling off. The filter screen is only used in a small area, which, compared with the existing large-area protective filter screens and mesh plates used to hold the activated carbon particles 9, can prevent the activated carbon particles 9 from breaking. Powder is shed and leaks out through the mesh in large quantities. During the piston movement of the loosening strip 12, it does not come into contact with the air outlet pipe 16. The air outlet pipe 16 can be made of plastic hose. During this process, the opening and closing degree is adjusted by controlling the corresponding solenoid valve. Air is injected into each oscillating block 14 by a bidirectional air pump, so that the oscillating block 14 bulges to different degrees. This makes the piston movement stroke of the moving rod 11 different when passing through each oscillating block 14. This avoids the problem of local loosening failure caused by fixed stroke, achieves efficient loosening of activated carbon particles 9, further enhances the smoothness of particle rolling and turning, and reduces the possibility of clumping and adhesion from the root.

[0028] Furthermore, the fan-shaped sealing boxes 7 are arranged in a fan shape and are not the same in number. Compared with the existing whole activated carbon filter plates, the present invention has a modular design. Each fan-shaped sealing box 7 is adapted to the slide rail bracket 6. It is only necessary to align the insertion hole of the insertion pipe 15 with the insertion hole of the connector 5 for assembly, and then fix the fan-shaped sealing box 7 to the slide rail bracket 6 with bolts. When the activated carbon particles 9 need to be replaced due to adsorption saturation, simply open the door panel 2. At this time, the undulating block 14 on the inner surface of the door panel 2 separates from the undulating block 14 on the inner surface of the treatment tank 1, and exposes the fan-shaped sealing box 7. At this time, simply unscrew the bolts and pull out the fan-shaped sealing box 7 to disassemble it for replacement. Thus, by modularly designing the fan-shaped sealing box 7, the existing whole circular plate activated carbon filter plates are modularized to facilitate quick disassembly and replacement of activated carbon filter plates.

[0029] like Figures 1-5As shown, a gas-gathering hood 19 is provided on the side of the deodorization chamber 18 away from the gas supply pipe 17, and the gas-gathering hood 19 is located inside the treatment tank 1. An air inlet 20 is provided at one end of the treatment tank 1, and an exhaust port 21 is provided at the other end of the treatment tank 1. A filter screen section 22 is provided between the air inlet 20 and the gas-gathering hood 19, and an air pump is provided inside the gas-gathering hood 19.

[0030] The specific operation is as follows: the gas in the public restroom is drawn into the treatment tank 1 through the air inlet 20 by the air pump. The gas passes through the filter section 22 to filter out particulate impurities. Then the gas enters the deodorization chamber 18 along the gas gathering hood 19 for initial deodorization. After that, the gas is deodorized by activated carbon particles 9 and then discharged from the filter exhaust hole 8. Finally, the deodorized gas is discharged from the exhaust port 21.

[0031] Based on the above description, the present invention enables the gas in public restrooms to first undergo chemical deodorization by contacting the deodorizing agent in the deodorization chamber 18, and then undergo physical secondary deodorization by activated carbon particles 9. The dual deodorization method greatly improves the odor removal effect and can effectively decompose and adsorb stubborn odor gases such as ammonia and hydrogen sulfide. It is suitable for public restrooms with high traffic.

[0032] When the activated carbon granules 9 do not completely fill the volume inside the fan-shaped sealing box 7, and the drive motor 4 drives the connecting piece 5, the slide rail bracket 6 and the fan-shaped sealing box 7 to rotate slowly, the activated carbon granules 9 roll and flip inside the fan-shaped sealing box 7 under the action of rotation and gravity, so as to realize the continuous renewal of the adsorption surface and greatly improve the adsorption efficiency and service life of the activated carbon. At the same time, when the movable wheel 13 rolls along the undulating block 14, the movable rod 11 drives the loosening strip 12 to perform piston-like reciprocating motion, further loosening the activated carbon granules 9, effectively preventing them from clumping and ensuring smooth rolling.

[0033] Furthermore, this invention abandons the existing design of large-area protective filters, and only sets a small-area filter at the filter exhaust hole 8 of the fan-shaped sealing box 7. This can prevent activated carbon particles 9 from falling off and prevent powder generated by activated carbon breakage from leaking out through the large-area mesh, reducing activated carbon loss. At the same time, it prevents powder from entering the device pipeline and causing blockage. Moreover, the fan-shaped sealing box 7 is an independent modular structure, which is fixed to the slide rail bracket 6 by bolts and the plug pipe 15 is plugged into the connector 5, making assembly convenient. When the activated carbon particles 9 are saturated, the fan-shaped sealing box 7 can be pulled out from the slide rail bracket 6 for replacement simply by opening the door panel 2 and unscrewing the bolts, without disassembling the entire device, which greatly reduces the difficulty and cost of maintenance.

[0034] In summary, when using this purification and deodorization device for public restrooms based on high-efficiency activated carbon, first connect the air inlet 20 of the device to the ventilation intake pipe of the public restroom through the connecting flange, and connect the exhaust port 21 to the outdoor ventilation pipe. Then, inject plant deodorizing agent into the deodorization chamber 18, ensuring that the liquid level of the deodorizing agent is above the connection between the air supply pipe 17 and the deodorization chamber 18, and the device installation is completed.

[0035] When the air pump inside the gas-gathering hood 19 is activated, the odorous gas in the public restroom is drawn into the treatment tank 1 through the air inlet 20. The gas first passes through the double-layer filter screen of the filter screen segment 22, where particulate impurities such as dust and hair are filtered and intercepted. The filtered gas is then concentrated and enters the deodorization chamber 18 through the gas-gathering hood 19.

[0036] After the gas enters the deodorizing chamber 18, it comes into full contact with the plant-based deodorizer inside. The deodorizer reacts chemically with the odor gas to achieve initial chemical deodorization. After the initial deodorization, the gas enters the connector 5 through the gas supply pipe 17, then enters the fan-shaped sealing box 7 through the insertion pipe 15, and is discharged into the activated carbon particles 9 through the gas outlet pipe 16. The gas flows from the inside of the activated carbon particles 9 to the outside. The activated carbon particles 9 physically adsorb the residual odor in the gas to achieve secondary deodorization. Finally, the gas is discharged from the fan-shaped sealing box 7 through the filter exhaust hole 8.

[0037] Start the drive motor 4. The drive motor 4 drives the connecting piece 5 to rotate at a slow speed. The connecting piece 5 drives the slide rail bracket 6 and the fan-shaped sealing box 7 to rotate slowly and synchronously. Under the action of rotation and gravity, the activated carbon particles 9 roll and turn inside the fan-shaped sealing box 7, continuously updating the adsorption surface. At the same time, during the rotation of the fan-shaped sealing box 7, the movable wheel 13 at the outer end of the movable rod 11 rolls along the surface of the ring-shaped undulating blocks 14. Under the convex action of the undulating blocks 14, the movable rod 11 compresses the spring in the spring tube 10 and drives the loosening strip 12 to move into the fan-shaped sealing box 7. When the movable wheel 13 rolls past the undulating blocks 14, the spring returns to its original position and drives the movable rod 11 and the loosening strip 12 to move back, realizing the piston-like reciprocating motion of the loosening strip 12, further loosening the activated carbon particles 9 and preventing them from clumping.

[0038] The clean gas after secondary deodorization is collected in the treatment tank 1 and finally discharged into the outdoor ventilation duct from the exhaust port 21. After a certain period of use, the activated carbon particles 9 become saturated. At this time, the device is turned off, the door panel 2 is opened, the bolts connecting the sector-shaped sealing box 7 and the slide rail bracket 6 are unscrewed, the sector-shaped sealing box 7 is pulled out of the slide rail bracket 6, the activated carbon particles 9 inside are replaced and then reconnected and fixed. At the same time, the filter screen of the filter section 22 and the deodorizing agent residue in the deodorization chamber 18 are cleaned, and new deodorizing agent is added to complete the maintenance.

[0039] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A high-efficiency activated carbon-based purification and deodorization device for public toilets, comprising a treatment tank (1) and an activated carbon assembly (3), characterized in that: The treatment tank (1) has a door panel (2) hinged to its side. The activated carbon assembly (3) includes a drive motor (4) fixed inside the treatment tank (1) by a bracket. The output end of the drive motor (4) is fixed with a connector (5). The outer wall of the connector (5) is fixed with a slide rail bracket (6). A fan-shaped sealing box (7) is embedded inside the slide rail bracket (6). A filter vent hole (8) is opened on the back side of the fan-shaped sealing box (7). The inside of the fan-shaped sealing box (7) is filled with activated carbon particles (9). A spring is fixed through the middle of the side of the fan-shaped sealing box (7). The tube (10) is provided with a movable rod (11) inside the spring tube (10). Loose strips (12) are fixed on both sides of the movable rod (11), and a movable wheel (13) is provided at the outer end of the movable rod (11). A wave block (14) is provided in a ring on the outer side of the fan-shaped sealing box (7) on the inner wall of the treatment tank (1) and the inner side of the door panel (2). The wave block (14) is made of rubber. The inside of the wave block (14) is hollow and connected to the pipeline buried inside the treatment tank (1). A solenoid valve is provided at the connection between the pipeline and the wave block (14), and a bidirectional air pump is connected to the end of the pipeline.

2. The purification and deodorization device for public restrooms based on high-efficiency activated carbon according to claim 1, characterized in that: The two ends of the side of the fan-shaped sealing box (7) are fixedly connected to the end of the slide rail bracket (6) by bolts, and the amount of activated carbon particles (9) injected does not fill the interior of the fan-shaped sealing box (7).

3. The purification and deodorization device for public restrooms based on high-efficiency activated carbon according to claim 1, characterized in that: The fan-shaped sealing box (7) is provided with a plug tube (15) on the side near the connector (5), and the plug tube (15) is inserted into the connector (5).

4. The purification and deodorization device for public restrooms based on high-efficiency activated carbon according to claim 3, characterized in that: An air outlet pipe (16) is provided on the inner wall side of the fan-shaped sealing box (7), and the end of the air outlet pipe (16) is submerged in the activated carbon particles (9).

5. The purification and deodorization device for public restrooms based on high-efficiency activated carbon according to claim 1, characterized in that: The loose strip (12) and the movable rod (11) are elastically connected to the fan-shaped sealing box (7) through the spring inside the spring tube (10), and the loose strip (12) does not contact the inner wall of the fan-shaped sealing box (7).

6. The purification and deodorization device for public restrooms based on high-efficiency activated carbon according to claim 1, characterized in that: The side of the connector (5) is rotatably connected to a gas supply pipe (17), and the end of the gas supply pipe (17) is connected to the deodorizing chamber (18), which is filled with deodorizing agent.

7. The purification and deodorization device for public restrooms based on high-efficiency activated carbon according to claim 6, characterized in that: The deodorization chamber (18) is provided with a gas-gathering hood (19) on the side away from the gas supply pipe (17), and the gas-gathering hood (19) is located inside the treatment tank (1).

8. The purification and deodorization device for public restrooms based on high-efficiency activated carbon according to claim 7, characterized in that: The processing tank (1) is provided with an air inlet (20) at one end and an exhaust port (21) at the other end.

9. A purification and deodorization device for public restrooms based on high-efficiency activated carbon according to claim 8, characterized in that: A filter section (22) is provided between the air inlet (20) and the air-gathering hood (19), and an air pump is provided inside the air-gathering hood (19).

Images