Public toilet fresh air system
By combining odor detection sensors and PLC controllers with a multi-layer filter design, the problems of high energy consumption and complex structure of public toilet ventilation systems have been solved, enabling intelligent control and convenient maintenance, and improving the air quality and user experience of public toilets.
Patent Information
- Application Number
- CN202422709942.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-11-07
AI Technical Summary
Existing public toilet ventilation systems generally operate at high power and high energy consumption for extended periods, resulting in high operating costs, short system lifespans, complex structures that are difficult to disassemble and clean, and a tendency to breed bacteria.
It uses an odor detection sensor to monitor the public toilet environment, a PLC controller to regulate the airflow, and a multi-layer filter structure with a simplified disassembly design, including a coarse filter, a fine filter, an activated carbon adsorption layer, and a high-efficiency HEPA filter. The threaded connection and snap-fit structure make it easy to disassemble and clean.
It achieves intelligent regulation based on air quality, reduces energy consumption, extends system life, improves air freshness, facilitates maintenance, and provides a comfortable and healthy toilet environment.
Smart Images

Figure CN223634046U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a clean wind system technical field especially relates to a public lavatory clean wind system. BACKGROUND
[0002] With the acceleration of urbanization, the public toilet as the important component of city infrastructure, its use frequency and importance highlight day by day, however, the public toilet environment often has peculiar smell, bacteria breeding etc. Problem, this not only influences the use experience of citizen, also causes certain negative influence to city image, so as to guarantee that citizen has good use experience when using the public toilet, needs to use clean wind system.
[0003] The existing public toilet clean wind system still has some deficiencies in the actual use process:
[0004] 1. The existing clean wind system, in order to guarantee the internal environment health of public toilet, generally long time is in high power, high energy consumption use state, not only relatively higher use cost, simultaneously can also reduce the service life of system.
[0005] 2. Because the internal environment of public toilet is poor, after long-term use of clean wind system, bacteria are easy to breed, and the structure of the existing clean wind system is relatively complex, which is not convenient for disassembly and cleaning. INVENTION CONTENTS
[0006] The utility model discloses a public lavatory clean wind system, which solves the problems of long-term use of the existing clean wind system in high power and high energy consumption, high use cost, reduced service life, easy breeding of bacteria and complex structure.
[0007] In order to achieve the above object, the utility model adopts the following technical scheme:
[0008] A public lavatory clean wind system, comprising a first installation bin, a second installation bin is fixedly installed on one side of the first installation bin, an exhaust port is fixedly installed on the other side of the second installation bin, a filter frame is slidably connected in the second installation bin, a protective frame is threadedly connected on one side of the first installation bin, and a mounting frame is fixedly connected in the first installation bin, and the mounting frame is located between the protective frame and the filter frame.
[0009] In a possible design, an odor detection sensor is fixedly installed on one side of the first installation bin, a driving motor is fixedly installed in the mounting frame, a fan blade is fixedly sleeved on the output shaft outer wall of the driving motor, a PLC controller is fixedly installed on one side of the mounting frame, and the PLC controller is electrically connected with the odor detection sensor and the driving motor to control the driving motor.
[0010] In a possible design, the top of the filter frame is provided with a through hole, a screw is passed through the through hole, and the filter frame is threadedly connected with the second mounting bin through the screw.
[0011] In a possible design, the protection frame is provided with an embedded groove, a mounting frame is embedded in the embedded groove, four clamping blocks are fixedly connected to the outer wall of the mounting frame, the protection frame is provided with four clamping grooves, springs are fixedly connected to the two sides of each clamping groove, the side, away from each other, of the two springs is fixedly connected with a resisting plate, and the side, close to each other, of the two resisting plates is slidably extended into the clamping groove, the clamping blocks are embedded into the clamping grooves, and the two resisting plates are clamped.
[0012] In a possible design, the mounting frame is fixedly connected with a coarse filter screen, the filter frame is fixedly installed with a fine filter screen, an activated carbon adsorption layer and a high-efficiency HEPA filter screen, and the activated carbon adsorption layer is located between the fine filter screen and the high-efficiency HEPA filter screen.
[0013] In the application, the system monitors the environment inside the public toilet through the odor detection sensor and transmits the data to the PLC controller. After the PLC analysis, the driving motor is controlled to speed up or slow down according to the analysis value. The fan driven by the driving motor generates wind force, which passes through the coarse filter screen, enters the filter frame, and is filtered by the fine filter screen, the activated carbon adsorption layer and the high-efficiency HEPA filter screen in the filter frame, and is discharged outward. After long-term use, the protection frame can be removed from the first mounting bin by rotating the protection frame, pushing the resisting plates to the two sides, taking out the clamping blocks from the clamping grooves, cleaning the coarse filter screen, taking out the filter frame from the first mounting bin by taking out the screw passing through the filter frame, inserting the filter frame into the first mounting bin during installation, connecting and fixing the filter frame through the screw, pressing the clamping blocks into the clamping grooves through the clamping blocks, moving the two resisting plates to the two sides respectively, and compressing the two springs.
[0014] Beneficial effects: In the utility model, the public toilet clean air system can enter the external air through the door hole, and the system is provided with an odor detection sensor, which can monitor the environment inside the public toilet in real time and transmit data to the PLC controller. This design enables the system to intelligently control the actual air quality in the public toilet, effectively avoiding the over-ventilation or insufficient ventilation problems of the traditional public toilet clean air system, facilitating the discharge of odor air in the toilet, forming air circulation, and improving the freshness of the toilet air.
[0015] The utility model discloses a public lavatory clean wind system, and filter frame and second installation store are connected through screw thread, make the installation and dismounting process become exceptionally simple, simultaneously, in the system, installation frame, clamping block, clamping groove, spring and the abutment plate are even greater convenience for quick replacement and cleaning filter material, and this design not only reduces the maintenance difficulty, but also improves the maintenance efficiency.
[0016] The utility model discloses a public lavatory clean wind system, and filter frame and second installation store are connected through screw thread, make the installation and dismounting process become exceptionally simple, simultaneously, in the system, installation frame, clamping block, clamping groove, spring and the abutment plate are even greater convenience for quick replacement and cleaning filter material, and this design not only reduces the maintenance difficulty, but also improves the maintenance efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 It is a three-dimensional structure schematic diagram of a public lavatory clean wind system provided by the utility model;
[0018] Figure 2 It is a three-dimensional structure schematic diagram of a public lavatory clean wind system provided by the utility model;
[0019] Figure 3 It is an explosion structure schematic diagram of a protective frame of a public lavatory clean wind system provided by the utility model;
[0020] Figure 4 It is an explosion structure schematic diagram of a protective frame of a public lavatory clean wind system provided by the utility model;
[0021] Figure 5 It is a three-dimensional structure schematic diagram of a public lavatory clean wind system provided by the utility model;
[0022] In the drawing: 1, first installation storehouse;2, protective frame;3, peculiar smell detection sensor;4, second installation storehouse;5, exhaust port;6, filter frame;7, mounting frame;8, drive motor;9, fan blade;10, coarse filter screen;11, installation frame;12, clamping block;13, abutment plate;14, spring;15, clamping groove;16, fine filter screen;17, activated carbon adsorption layer;18, high -efficient HEPA filter screen;19, inlay groove. DETAILED DESCRIPTION
[0023] The technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments.
[0024] Embodiment 1: refer to Figure 1 And Figure 2The utility model provides a public lavatory clean wind system, including first installation storehouse 1, one side of first installation storehouse 1 is fixedly installed with second installation storehouse 4, and the other side of second installation storehouse 4 is fixedly installed with exhaust port 5, and the sliding connection of filter frame 6 is established in second installation storehouse 4, and the screw thread connection of protection frame 2 is established in one side of first installation storehouse 1, and the fixed connection of mounting bracket 7 is established in first installation storehouse 1, and mounting bracket 7 is located between protection frame 2 and filter frame 6.
[0025] With reference to Figure 2 One side of first installation storehouse 1 is fixedly installed with peculiar smell detection sensor 3, and driving motor 8 is fixedly installed in mounting bracket 7, and the output shaft outer wall of driving motor 8 is fixedly provided with fan blade 9, and one side of mounting bracket 7 is fixedly installed with PLC controller, and PLC controller is electrically connected with peculiar smell detection sensor 3 and driving motor 8, and driving motor 8 is controlled. The environment in the public lavatory is monitored by peculiar smell detection sensor 3 and is transmitted to PLC controller, is analyzed after passing through PLC, is according to the numerical value of analysis, and driving motor 8 is controlled to speed up or slow down, and fan blade 9 driven by driving motor 8.
[0026] With reference to Figure 2 The top of filter frame 6 is provided with a through hole, and a screw is passed through the through hole, and the filter frame 6 is screwed with the second installation storehouse 4. The filter frame 6 is slidably connected in the second installation storehouse 4, the top of the filter frame 6 is provided with a through hole, and the filter frame 6 is screwed with the second installation storehouse 4 through the screw, which is convenient for disassembly and replacement.
[0027] With reference to Figure 3 And Figure 4 The protection frame 2 is provided with an embedded groove 19, and the embedded groove 19 is embedded with a mounting frame 11. The outer wall of the mounting frame 11 is fixedly connected with four clamping blocks 12. The protection frame 2 is provided with four clamping grooves 15. The two sides of the clamping groove 15 are fixedly connected with springs 14. The two springs 14 are fixedly connected with abutting plates 13 on the side close to each other. The two abutting plates 13 are slidably extended into the clamping groove 15 on the side away from each other. The clamping block 12 is embedded into the clamping groove 15 and clamped by the two abutting plates 13. The mounting frame 11 is pressed into the clamping groove 15 through the clamping block 12, which drives the two abutting plates 13 to move to both sides respectively, and the two springs 14 are compressed. The clamping block 12 is embedded into the clamping groove 15, and the spring 14 resets the two abutting plates 13 to clamp the clamping block 12.
[0028] With reference to Figure 5The coarse filter screen 10 is fixedly connected in the mounting frame 11, the fine filter screen 16, the activated carbon adsorption layer 17 and the high-efficiency HEPA filter screen 18 are fixedly installed in the filter frame 6, and the activated carbon adsorption layer 17 is located between the fine filter screen 16 and the high-efficiency HEPA filter screen 18. The coarse filter screen 10 in the mounting frame 11 performs preliminary filtration to remove larger particulate matters, then the clean wind enters the filter frame 6 in the second mounting bin 4 and is sequentially filtered by the fine filter screen 16, the activated carbon adsorption layer 17 and the high-efficiency HEPA filter screen 18 to remove small particulate matters, harmful gases and bacteria and the like.
[0029] The present application can be used in the field of public toilets, and can also be used in other fields applicable to the present application.
[0030] Embodiment 2: Reference Figure 4 On the basis of embodiment one, the improvement is that: a public toilet clean wind system is applied to the field of public toilets, and the two sides of the clamping block 12 are provided with arc-shaped corners, the two abutting plates 13 can be extruded and pushed through the arc-shaped corners. The arc-shaped corner design is labor-saving and facilitates extrusion and pushing of the two abutting plates 13 by the clamping block 12.
[0031] However, as known to those skilled in the art, the working principle and wiring method of the driving motor 8 are common, which belong to conventional means or common general knowledge, and will not be described here. Those skilled in the art can make any selection or arrangement according to their needs or convenience.
[0032] The peculiar smell detection sensor 3 in the utility model can be consistent with the peculiar smell detection sensor with the brand and model of Mixsen MIX2112.
[0033] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.
Claims
1. A public lavatory air freshening system, characterized by, The utility model relates to a kind of air purifiers, including: First installation warehouse (1), one side of the first installation warehouse (1) is fixedly installed with second installation warehouse (4), the other side of the second installation warehouse (4) is fixedly installed with air outlet (5), slidingly connected with filter frame (6) in the second installation warehouse (4), the one side of the first installation warehouse (1) is threadedly connected with protective frame (2), the first installation warehouse (1) is fixedly connected with mounting bracket (7) in, and mounting bracket (7) is between protective frame (2) and filter frame (6).
2. The system as claimed in claim 1, wherein, The one side of the first installation warehouse (1) is fixedly installed with odor detection sensor (3), the mounting bracket (7) is fixedly installed with drive motor (8) in, the output shaft outer wall of the drive motor (8) is fixedly covered with fan blade (9), the one side of the mounting bracket (7) is fixedly installed with PLC controller, and PLC controller is electrically connected with odor detection sensor (3), drive motor (8) is controlled.
3. The system as claimed in claim 1, wherein, The top of the filter frame (6) is equipped with through hole, the through hole is crossed with screw, and the filter frame (6) is threadedly connected with the second installation warehouse (4) by screw.
4. The system as claimed in claim 1, wherein, The protective frame (2) is equipped with embedded groove (19) in, the embedded groove (19) is embedded with mounting frame (11), the outer wall of the mounting frame (11) is fixedly connected with four clamping blocks (12), the protective frame (2) is equipped with four clamping grooves (15), both sides of the clamping groove (15) are fixedly connected with spring (14), both sides of the two spring (14) are fixedly connected with abutment plate (13) and are away from each other, and both sides of the two abutment plates (13) are slidably extended into clamping groove (15), clamping block (12) is embedded into clamping groove (15), and the two abutment plates (13) are clamped.
5. The system as claimed in claim 4, wherein, The mounting frame (11) is fixedly connected with coarse filter screen (10), the filter frame (6) is fixedly installed with fine filter screen (16), activated carbon adsorption layer (17) and high-efficiency HEPA filter screen (18), and activated carbon adsorption layer (17) is between fine filter screen (16) and high-efficiency HEPA filter screen (18).