Sensing mechanism of toilet air quality sensor
By designing rotatable laser sensors and photodetectors, the problem that existing air quality sensors cannot capture the dynamic changes of particulate matter in time is solved, achieving higher monitoring accuracy and timeliness, while protecting the internal components of the sensor to ensure stable measurements.
Patent Information
- Application Number
- CN202422238954.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-12
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-09-12
Smart Images

Figure CN223295845U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air quality sensors, in particular to a sensing mechanism of a toilet air quality sensor. Background Art
[0002] Air quality sensors are a key environmental monitoring tool, used to monitor restroom air conditions in real time. They offer high-precision, multi-parameter detection capabilities, enabling real-time acquisition and analysis of air quality data. Leveraging intelligent technology, these sensors provide timely and accurate monitoring results, enabling managers to gain a scientific basis for swift and effective measures to improve air quality. This real-time data allows managers to better understand air quality conditions and ensure effective improvements in public health.
[0003] Existing air quality sensors can only detect particles within a fixed range when detecting particulate matter in the air through laser sensors. However, the concentration and distribution of particulate matter in the air change dynamically. Detection within a fixed range cannot capture these changes in a timely manner, thus affecting the accuracy and timeliness of the monitoring results. Utility Model Content
[0004] The utility model provides a sensing mechanism for a toilet air quality sensor, which has the beneficial effect of rotatable monitoring. It solves the problem mentioned in the above background technology that the existing air quality sensor can only detect particles within a fixed range when detecting particles in the air through a laser sensor, while the concentration and distribution of particles in the air change dynamically, and the detection of the fixed range cannot capture these changes in time, thereby affecting the accuracy and timeliness of the monitoring results.
[0005] The utility model provides the following technical solutions: the sensing mechanism of the toilet air quality sensor includes a sensor body, the bottom of the sensor body is rotatably connected to an auxiliary suction shell, the interior of the sensor body is fixedly connected to a mounting plate, one end of the mounting plate is fixedly connected to a motor, the output end of the motor is fixedly connected to a first connecting shaft, the outer side of the first connecting shaft is fixedly connected to a connecting frame, one end of the connecting frame is fixedly connected to the auxiliary suction shell, the outer side of the first connecting shaft is fixedly connected to a fan blade, a laser sensor is installed on one side of the auxiliary suction shell, one side of the laser sensor is fixedly connected to a photoelectric detector, and the outer side of the laser sensor is fixedly connected to an adjustment mechanism, and the adjustment mechanism can adjust the use angle of the laser sensor.
[0006] As an optional solution for the sensing mechanism of the toilet air quality sensor of the utility model, the adjustment mechanism includes a second connecting shaft, one end of the second connecting shaft is rotatably connected to a fixed seat, and one side of the fixed seat is fixedly connected to the auxiliary suction shell.
[0007] As an optional solution for the sensing mechanism of the toilet air quality sensor of the utility model, a fastening bolt is provided on one side of the fixing seat, one end of the fastening bolt passes through the interior of the fixing seat and contacts the second connecting shaft, and the fastening bolt is threadedly connected to the fixing seat.
[0008] As an optional solution for the sensing mechanism of the toilet air quality sensor of the present invention, the outer side of the auxiliary suction shell is fixedly connected to a limiting ring, and one side of the limiting ring is rotatably connected to the inner wall of the sensor body.
[0009] As an optional scheme for the sensing mechanism of the toilet air quality sensor described in the utility model, wherein: an infrared emitter is fixedly connected to the interior of the sensor body, a photoelectric receiving sensor is provided on one side of the infrared emitter, and one side of the photoelectric receiving sensor is fixedly connected to the inner wall of the sensor body.
[0010] As an optional solution for the sensing mechanism of the toilet air quality sensor described in the utility model, a microprocessor is fixedly connected to one side of the inner wall of the sensor body, the microprocessor is wirelessly connected to the laser sensor and the photoelectric detector through a wireless communication module, and the microprocessor is electrically connected to the infrared emitter and the photoelectric receiving sensor through wires.
[0011] As an optional solution for the sensing mechanism of the toilet air quality sensor of the present invention, micropores are provided at the bottom of the sensor body, and the number of the micropores is several and evenly distributed.
[0012] As an optional solution for the sensing mechanism of the toilet air quality sensor of the present invention, the bottom of the auxiliary suction shell is fixedly connected to a mounting frame, and the inner side of the mounting frame is fixedly connected to a filter.
[0013] The utility model has the following beneficial effects:
[0014] 1. The sensing mechanism of the toilet air quality sensor is provided with a motor, a first connecting shaft, a connecting frame and an auxiliary suction shell. When the first connecting shaft rotates, the auxiliary suction shell will be driven to rotate through the connecting frame. After the auxiliary suction shell rotates, the laser sensor and photodetector fixed on one side of it rotate together. The rotating laser sensor emits a laser beam into the air. The suspended particles in the air will scatter the laser. The photodetector collects the scattered light intensity and transmits it to the microprocessor through the wireless transmission module for calculating the concentration of particulate matter. The rotary detection of the laser sensor can increase the detection range, dynamically detect the surrounding air quality, and improve the accuracy and timeliness of the monitoring results.
[0015] 2. The sensing mechanism of the toilet air quality sensor is equipped with micropores and filters. The design of the micropores and filters can limit the air flow entering the sensor, enabling the sensor to perform measurements under stable and controllable conditions. It can reduce measurement errors caused by excessively fast or slow air flow, and can prevent large particles and dust from directly entering the sensor, thereby protecting the components inside the sensor. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural diagram of the present utility model.
[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the sensor body of the present utility model.
[0018] Figure 3 It is a schematic diagram of the cross-sectional structure of the fixing seat of the utility model.
[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the auxiliary suction shell of the present utility model.
[0020] In the figure: 1. Sensor body; 2. Auxiliary suction shell; 3. Mounting plate; 4. Motor; 5. First connecting shaft; 6. Fan blade; 7. Laser sensor; 8. Photoelectric detector; 901. Second connecting shaft; 902. Fixing seat; 903. Fastening bolt; 10. Limiting ring; 11. Infrared transmitter; 12. Photoelectric receiving sensor; 13. Microprocessor; 14. Micropore; 15. Mounting frame; 16. Filter; 17. Connecting frame. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] See also Figures 1 to 4 The sensing mechanism of the toilet air quality sensor includes a sensor body 1. The bottom of the sensor body 1 is rotatably connected to the auxiliary suction shell 2. The interior of the sensor body 1 is fixedly connected to a mounting plate 3. One end of the mounting plate 3 is fixedly connected to a motor 4. The output end of the motor 4 is fixedly connected to a first connecting shaft 5. The outer side of the first connecting shaft 5 is fixedly connected to a connecting frame 17. One end of the connecting frame 17 is fixedly connected to the auxiliary suction shell 2. The outer side of the first connecting shaft 5 is fixedly connected to a fan blade 6. A laser sensor 7 is installed on one side of the auxiliary suction shell 2. A photoelectric detector 8 is fixedly connected to one side of the laser sensor 7. An adjustment mechanism is fixedly connected to the outer side of the laser sensor 7. The adjustment mechanism can adjust the use angle of the laser sensor 7.
[0023] The adjustment mechanism includes a second connecting shaft 901 . One end of the second connecting shaft 901 is rotatably connected to a fixing seat 902 . One side of the fixing seat 902 is fixedly connected to the auxiliary suction shell 2 .
[0024] A fastening bolt 903 is provided on one side of the fixing seat 902 . One end of the fastening bolt 903 penetrates into the interior of the fixing seat 902 and contacts the second connecting shaft 901 . The fastening bolt 903 is threadedly connected to the fixing seat 902 .
[0025] A limit ring 10 is fixedly connected to the outer side of the auxiliary suction shell 2 , and one side of the limit ring 10 is rotatably connected to the inner wall of the sensor body 1 .
[0026] By providing the limiting ring 10 , the limiting ring 10 has a limiting effect on the rotation of the auxiliary suction housing 2 , making the auxiliary suction housing 2 more stable during rotation.
[0027] An infrared emitter 11 is fixedly connected to the interior of the sensor body 1 . The infrared emitter 11 is an infrared light emitting diode. A photoelectric receiving sensor 12 is provided on one side of the infrared emitter 11 . One side of the photoelectric receiving sensor 12 is fixedly connected to the inner wall of the sensor body 1 .
[0028] A microprocessor 13 is fixedly connected to one side of the inner wall of the sensor body 1. The microprocessor 13 is wirelessly connected to the laser sensor 7 and the photodetector 8 through a wireless communication module. The microprocessor 13 is electrically connected to the infrared transmitter 11 and the photoelectric receiving sensor 12 through wires.
[0029] The bottom of the sensor body 1 is provided with micro-holes 14 , and the number of the micro-holes 14 is several and evenly distributed.
[0030] A mounting frame 15 is fixedly connected to the bottom of the auxiliary suction shell 2 , and a filter screen 16 is fixedly connected to the inner side of the mounting frame 15 .
[0031] By providing the micropores 14 and the filter 16, the design of the micropores 14 and the filter 16 can limit the air flow entering the sensor, so that the sensor can perform measurements under stable and controllable conditions, reduce measurement errors caused by excessively fast or slow air flow, and prevent large particles and dust from directly entering the sensor, thereby protecting the components inside the sensor.
[0032] The working principle of this embodiment is as follows: when it is necessary to monitor the air quality in the toilet, the sensor body 1 is installed on the ceiling in the toilet, and the position needs to be biased towards the squatting pit. Then, the motor 4 is started, and the motor 4 drives the first connecting shaft 5 to rotate. The first connecting shaft 5 drives the fan blades 6 to rotate. After the fan blades 6 rotate, the air at the bottom of the sensor body 1 is sucked into the sensor body 1. Then, infrared light is emitted by the infrared emitter 11. When particulate matter in the sucked-in air passes through, scattered light is generated. Then, the photoelectric receiving sensor 12 is responsible for detecting the intensity of the scattered light and transmitting it to the microprocessor 13 through the wire, thereby reflecting the concentration of particulate matter in the air.
[0033] As the first connecting shaft 5 rotates, the auxiliary suction shell 2 is driven to rotate through the connecting frame 17. After the auxiliary suction shell 2 rotates, the laser sensor 7 fixed on one side thereof will rotate accordingly, and the photoelectric detector 8 at the bottom of the laser sensor 7 will rotate accordingly. The rotating laser sensor 7 emits a laser beam into the air, and the suspended particles in the air will scatter the laser. The photoelectric detector 8 collects the scattered light intensity and transmits it to the microprocessor 13 through the wireless transmission module for calculating the concentration of the particulate matter. The rotary detection of the laser sensor 7 can increase the detection range, dynamically detect the surrounding air quality, and improve the accuracy and timeliness of the monitoring results.
[0034] After turning the fastening bolt 903, the laser sensor 7 and the photoelectric detector 8 can be rotated to adjust the monitoring angles of the two. After the adjustment is completed, the fastening bolt 903 is turned in the opposite direction so that the fastening bolt 903 can press the two together by pressing against the second connecting shaft 901, and they will not shake or shift during the rotation detection process.
[0035] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.
Claims
1. The sensing mechanism of the toilet air quality sensor comprises a sensor body (1), characterized in that: The bottom of the sensor body (1) is rotatably connected to the auxiliary suction shell (2), the interior of the sensor body (1) is fixedly connected to a mounting plate (3), one end of the mounting plate (3) is fixedly connected to a motor (4), the output end of the motor (4) is fixedly connected to a first connecting shaft (5), the outer side of the first connecting shaft (5) is fixedly connected to a connecting frame (17), one end of the connecting frame (17) is fixedly connected to the auxiliary suction shell (2), the outer side of the first connecting shaft (5) is fixedly connected to a fan blade (6), a laser sensor (7) is installed on one side of the auxiliary suction shell (2), a photoelectric detector (8) is fixedly connected to one side of the laser sensor (7), and an adjustment mechanism is fixedly connected to the outer side of the laser sensor (7), and the adjustment mechanism can adjust the use angle of the laser sensor (7).
2. The sensing mechanism of the toilet air quality sensor according to claim 1, characterized in that: The adjustment mechanism comprises a second connecting shaft (901), one end of the second connecting shaft (901) is rotatably connected to a fixing seat (902), and one side of the fixing seat (902) is fixedly connected to the auxiliary suction shell (2).
3. The sensing mechanism of the toilet air quality sensor according to claim 2, characterized in that: A fastening bolt (903) is provided on one side of the fixing seat (902), one end of the fastening bolt (903) penetrates into the interior of the fixing seat (902) and contacts the second connecting shaft (901), and the fastening bolt (903) is threadedly connected to the fixing seat (902).
4. The sensing mechanism of the toilet air quality sensor according to claim 1, characterized in that: A limiting ring (10) is fixedly connected to the outer side of the auxiliary suction shell (2), and one side of the limiting ring (10) is rotatably connected to the inner wall of the sensor body (1).
5. The sensing mechanism of the toilet air quality sensor according to claim 1, characterized in that: An infrared emitter (11) is fixedly connected to the interior of the sensor body (1), a photoelectric receiving sensor (12) is provided on one side of the infrared emitter (11), and one side of the photoelectric receiving sensor (12) is fixedly connected to the inner wall of the sensor body (1).
6. The sensing mechanism of the toilet air quality sensor according to claim 5, characterized in that: A microprocessor (13) is fixedly connected to one side of the inner wall of the sensor body (1); the microprocessor (13) is wirelessly connected to the laser sensor (7) and the photoelectric detector (8) via a wireless communication module; and the microprocessor (13) is electrically connected to the infrared transmitter (11) and the photoelectric receiving sensor (12) via a wire.
7. The sensing mechanism of the toilet air quality sensor according to claim 1, characterized in that: The bottom of the sensor body (1) is provided with micropores (14), and the number of the micropores (14) is several and evenly distributed.
8. The sensing mechanism of the toilet air quality sensor according to claim 1, characterized in that: The bottom of the auxiliary suction shell (2) is fixedly connected to a mounting frame (15), and the inner side of the mounting frame (15) is fixedly connected to a filter screen (16).