Air quality detection device

By introducing a magnetic protective cover and a scraper cleaning system into the air quality detection device, the problem of pollutants entering and affecting the accuracy of the sensor has been solved, enabling accurate sensor detection and convenient equipment maintenance.

CN224303665UActive Publication Date: 2026-05-29SICHUAN KAILE DETECTION TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN KAILE DETECTION TECH
Filing Date
2025-05-29
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

When not in use, existing air quality monitoring devices have their connecting pipes exposed to the external environment, causing pollutants to enter the device and affecting sensor accuracy and test results.

Method used

An air quality detection device was designed, which uses a first protective cover and a second protective cover. The connecting pipe is protected by a magnetic adsorption mechanism to prevent pollutants from entering, and a scraper is provided to clean the dust on the filter cover to prevent clogging.

Benefits of technology

It effectively prevents contaminants from entering the device, maintains sensor accuracy, avoids test result deviations, facilitates the replacement and cleaning of connecting pipes, and extends the service life of the equipment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224303665U_ABST
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Abstract

The utility model discloses an air quality detection device relates to detection device technical field. Including the box, the top of box is fixed with the connecting shell, the top of box is fixed with the installation pipe, and the inner wall rotationally connected of installation pipe has the rotating piece, and the outer wall of rotating piece is screwed with the mounting piece, and the top of mounting piece is fixed with the connecting pipe, and one end of connecting pipe is screwed with the filter cover, and the top of connecting shell is hinged with first protective cover and second protective cover, and the one end fixed with the iron block of first protective cover near second protective cover, and the one end fixed with the magnetic attraction piece of second protective cover near first protective cover. The utility model discloses through setting first protective cover, second protective cover and filter cover, filter cover filters air when using, avoids the pollutant (such as dust, larger particle etc.) in air to enter the inside of air quality detection device, influences the sensor precision of air quality detection device, leads to the deviation of test result, through rotating first protective cover and second protective cover upwards.
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Description

Technical Field

[0001] This utility model relates to the field of detection device technology, specifically an air quality detection device. Background Technology

[0002] Indoor air quality testing typically involves drawing outside air into the air quality testing device. However, an existing air quality testing device (notification number: CN213181496U) has the following drawbacks in use:

[0003] During use, an adapter pipe is installed on the top of the chassis. When the adapter pipe is exposed to the external environment when not in use, pollutants in the air (such as dust, larger particles, etc.) can easily enter the pipe. These pollutants can affect the accuracy of the air quality detection device's sensor, leading to deviations in test results. Therefore, this patent proposes an air quality detection device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide an air quality detection device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an air quality detection device, comprising a housing, a connecting shell fixed to the top of the housing, an installation tube fixedly connected to the top of the housing, a rotating component rotatably connected to the inner wall of the installation tube, an installation component screwed to the outer wall of the rotating component, a connecting tube fixed to the top of the installation component, a filter cover screwed to one end of the connecting tube, a first protective cover and a second protective cover hinged to the top of the connecting shell, an iron block fixed to the end of the first protective cover near the second protective cover, and a magnetic block fixed to the end of the second protective cover near the first protective cover, the magnetic block and the iron block being magnetically attracted to each other.

[0006] Preferably, the inner walls of both ends of the second protective cover are fixed with fixing rods, the top of the connecting shell is fixed with a support frame, the connecting pipe is inserted into the support frame, the top of the connecting shell is inserted through the connecting rod, the connecting rod passes through the box and its outer wall is fixed with a fixing plate, the box is fixed with a connecting plate, the connecting rod passes through the connecting plate, a spring is fixed between the fixing plate and the connecting plate, a roller is rotatably connected to the connecting rod, the roller contacts the bottom end of the fixing rod, a scraper is fixed on one side of the connecting rod, the scraper contacts the filter cover, and a collection box is inserted into the top of the connecting shell.

[0007] Preferably, the rotating component includes a rotating ring rotatably connected to the inner wall of the mounting tube, with a connecting ring integrally formed at the top end of the rotating ring, and the mounting component screwed onto the outer wall of the connecting ring.

[0008] Preferably, an air quality detection module is installed inside the box. The air quality detection module includes a housing and multiple sensors. A fan is installed inside the box. The fan's air inlet is fixedly connected to the mounting pipe, and the fan's air outlet is fixedly connected to the housing. A door is installed on the back of the box, and a rechargeable battery is installed inside the box.

[0009] Preferably, the bottom of the box is equipped with multiple casters, and one side of the box has multiple vents. The top of the first protective cover and the second protective cover are both fixed with handles, and the handles are equipped with anti-slip sleeves.

[0010] Preferably, a controller is installed on the front of the housing, and the controller is electrically connected to the air quality detection module and the fan.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By setting a first protective cover, a second protective cover, and a filter cover, the filter cover filters the air during use, preventing pollutants in the air (such as dust, larger particles, etc.) from entering the air quality detection device and affecting the accuracy of the air quality detection device's sensor, leading to deviations in test results. By rotating the first and second protective covers upwards, the magnetic block and the iron block are magnetically attracted, so that the first and second protective covers can protect the outside of the connecting pipe during non-use and transportation.

[0013] Additionally, by rotating the second protective cover upwards, the fixed rod inside the second protective cover presses against the roller, which in turn moves the connecting rod downwards. The connecting rod then compresses the spring and moves the scraper downwards, cleaning the surface of the filter cover and scraping large dust particles filtered by the filter cover into the collection box for collection. This way, when conducting the next air quality test, the surface of the filter cover will not have too much dust adhering to it, which would affect the airflow into the connecting pipe. Furthermore, when a lot of dust accumulates in the collection box, the collection box can be removed directly and the dust emptied. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a sectional view of the box body of this utility model;

[0016] Figure 3 This is a schematic diagram of the connecting pipe structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the second protective cover structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the scraper structure of this utility model.

[0019] In the diagram: 1. Housing; 2. Connecting shell; 3. First protective cover; 4. Second protective cover; 5. Handle; 6. Exhaust vent; 7. Air quality detection module; 8. Fan; 9. Mounting pipe; 10. Rotary component; 11. Mounting component; 12. Connecting pipe; 13. Filter cover; 14. Magnetic block; 15. Caster wheel; 16. Controller; 17. Fixing rod; 18. Connecting rod; 19. Spring; 20. Roller; 21. Scraper; 22. Support frame; 23. Collection box. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Indoor air quality testing typically involves drawing outside air into an air quality testing device. This invention provides an air quality testing device that protects a connecting pipe 12 by using a first protective cover 3 and a second protective cover 4. When protection is needed, the first and second protective covers 3 and 4 are rotated upwards, causing the magnetic block 14 to magnetically attract the iron block, thus protecting the connecting pipe 12. This prevents pollutants from the outside air from entering the connecting pipe 12 when not in use, which could affect the sensor accuracy of the air quality testing device and lead to test result deviations. Furthermore, the lack of external protection for the connecting pipe 12 during use and transportation makes it susceptible to damage from impacts. The connecting pipe 12 can rotate on the connecting shell 2, facilitating the intake of air from different locations. Additionally, when the connecting pipe 12 is damaged and needs replacement, the mounting part 11 can be rotated off the rotating part 10. A filter cover 13 filters larger impurities in the air, preventing large particles of dust from entering the device.

[0022] like Figures 1-5As shown, this utility model provides a technical solution: an air quality detection device, including a housing 1, a connecting shell 2 fixed to the top of the housing 1, an installation tube 9 fixedly connected to the top of the housing 1, a rotating component 10 rotatably connected to the inner wall of the installation tube 9, an installation component 11 screwed to the outer wall of the rotating component 10, a connecting tube 12 fixed to the top of the installation component 11, a filter cover 13 screwed to one end of the connecting tube 12, a first protective cover 3 and a second protective cover 4 hinged to the top of the connecting shell 2, an iron block fixed to the end of the first protective cover 3 near the second protective cover 4, and a magnetic block 14 fixed to the end of the second protective cover 4 near the first protective cover 3, the magnetic block 14 and the iron block being magnetically attracted. The rotating component 10 includes a rotating ring rotatably connected to the inner wall of the installation tube 9, a connecting ring integrally formed at the top of the rotating ring, and the installation component 11 screwed to the outer wall of the connecting ring.

[0023] It should be noted that by setting the first protective cover 3 and the second protective cover 4, the connecting pipe 12 is protected. When the connecting pipe 12 needs to be protected, the first protective cover 3 and the second protective cover 4 are rotated upwards so that the magnetic block 14 is attracted to the iron block, thus protecting the connecting pipe 12. In addition, by moving the connecting pipe 12 upwards and then rotating the connecting pipe 12, it is easy to draw air from different positions. In addition, when the connecting pipe 12 is damaged and needs to be replaced, the mounting part 11 can be rotated off the rotating part 10. The filter cover 13 filters out larger impurities in the air to prevent the connecting pipe 12 from becoming blocked.

[0024] like Figure 5 As shown, fixing rods 17 are fixed to the inner walls of both ends of the second protective cover 4. A support frame 22 is fixed to the top of the connecting shell 2. The support frame 22 supports the filter cover 13. The connecting pipe 12 is inserted into the support frame 22. A connecting rod 18 is inserted through the top of the connecting shell 2. After the connecting rod 18 passes through the box 1, a fixing plate is fixed to its outer wall. A connecting plate is fixed inside the box 1. The connecting rod 18 passes through the connecting plate. A spring 19 is fixed between the fixing plate and the connecting plate. A roller 20 is rotatably connected to the connecting rod 18. The roller 20 contacts the bottom end of the fixing rod 17. A scraper 21 is fixed to one side of the connecting rod 18. The scraper 21 contacts the filter cover 13. A collection box 23 is inserted into the top of the connecting shell 2.

[0025] It should be noted that by rotating the second protective cover 4 upwards, the fixing rod 17 inside the second protective cover 4 presses the roller 20, the roller 20 drives the connecting rod 18 to move downwards, the connecting rod 18 presses the spring 19, and the connecting rod 18 drives the scraper 21 to move downwards. The scraper 21 cleans the surface of the filter cover 13, scraping the large dust particles filtered by the filter cover 13 into the collection box 23 for collection. In this way, when the air quality is tested next time, the surface of the filter cover 13 will not have too much dust attached, which will affect the airflow into the connecting pipe 12. In addition, when a lot of dust accumulates in the collection box 23, the collection box 23 can be directly removed and the dust emptied.

[0026] like Figure 1 and Figure 2 As shown, an air quality detection module 7 is installed inside the housing 1. The air quality detection module 7 includes a housing and multiple sensors, including gas sensors, humidity sensors, and temperature sensors. A fan 8 is installed inside the housing 1. The air inlet of the fan 8 is fixedly connected to the mounting pipe 9, and the air outlet of the fan 8 is fixedly connected to the housing. A door is installed on the back of the housing 1, and a rechargeable battery is installed inside the housing 1. Multiple casters 15 are installed at the bottom of the housing 1, and multiple exhaust vents 6 are opened on one side of the housing 1. Handles 5 are fixed to the top of the first protective cover 3 and the second protective cover 4, and anti-slip sleeves are installed on the handles 5. A controller 16 is installed on the front of the housing 1, and the controller 16 is electrically connected to the air quality detection module 7 and the fan 8.

[0027] It should be noted that gas sensors are used to detect the concentration of gases in the air. The appropriate sensors are installed according to specific needs. For example, volatile organic compound (VOC) sensors are used to monitor volatile organic compounds such as formaldehyde and benzene, which are commonly found in home renovations and vehicle emissions. Humidity and temperature sensors are used to detect humidity and temperature in the air. By starting the fan 8, outside air is drawn into the air quality detection module 7 through the connecting pipe 12 for detection. The detected air is then discharged from the exhaust port 6. A door facilitates maintenance of the equipment inside the enclosure 1. A rechargeable battery powers the fan 8, air quality detection module 7, and controller 16 within the enclosure 1. The electrical components in this design are controlled by the matching controller 16. The control circuit can be easily programmed by those skilled in the art and is common knowledge in the field. It is used without modification. Furthermore, this invention primarily protects mechanical devices; therefore, the control method and circuit connections will not be explained in detail.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended embodiments and their equivalents.

Claims

1. An air quality detection device, comprising a housing (1), characterized in that: A connecting shell (2) is fixed at the top of the box (1). An installation tube (9) is fixedly connected to the top of the box (1). A rotating part (10) is rotatably connected to the inner wall of the installation tube (9). An installation part (11) is screwed to the outer wall of the rotating part (10). A connecting tube (12) is fixed at the top of the installation part (11). A filter cover (13) is screwed to one end of the connecting tube (12). A first protective cover (3) and a second protective cover (4) are hinged to the top of the connecting shell (2). An iron block is fixed to one end of the first protective cover (3) near the second protective cover (4). A magnetic block (14) is fixed to one end of the second protective cover (4) near the first protective cover (3). The magnetic block (14) and the iron block are magnetically attracted to each other.

2. The air quality detection device according to claim 1, characterized in that: The inner walls of both ends of the second protective cover (4) are fixed with fixing rods (17), the top of the connecting shell (2) is fixed with a support frame (22), the connecting pipe (12) is inserted into the support frame (22), the top of the connecting shell (2) is inserted with a connecting rod (18), the connecting rod (18) passes through the box (1) and its outer wall is fixed with a fixing plate, the box (1) is fixed with a connecting plate, the connecting rod (18) passes through the connecting plate, a spring (19) is fixed between the fixing plate and the connecting plate, a roller (20) is rotatably connected on the connecting rod (18), the roller (20) is in contact with the bottom end of the fixing rod (17), a scraper (21) is fixed on one side of the connecting rod (18), the scraper (21) is in contact with the filter cover (13), and a collection box (23) is inserted into the top of the connecting shell (2).

3. The air quality detection device according to claim 1, characterized in that: The rotating component (10) includes a rotating ring rotatably connected to the inner wall of the mounting tube (9), with a connecting ring integrally formed at the top of the rotating ring, and the mounting component (11) screwed onto the outer wall of the connecting ring.

4. An air quality detection device according to claim 1, characterized in that: An air quality detection module (7) is installed inside the housing (1). The air quality detection module (7) includes a housing and multiple sensors. A fan (8) is installed inside the housing (1). The air inlet of the fan (8) is fixedly connected to the mounting pipe (9). The air outlet of the fan (8) is fixedly connected to the housing. A door is installed on the back of the housing (1). A rechargeable battery is installed inside the housing (1).

5. An air quality detection device according to claim 1, characterized in that: The bottom of the box (1) is equipped with multiple casters (15), and multiple exhaust vents (6) are opened on one side of the box (1). The top of the first protective cover (3) and the second protective cover (4) are both fixed with handles (5), and anti-slip sleeves are installed on the handles (5).

6. An air quality detection device according to claim 1, characterized in that: A controller (16) is installed on the front of the housing (1), and the controller (16) is electrically connected to the air quality detection module (7) and the fan (8).