A flying miniature air quality detection device

Abstract

The present invention discloses a flying miniature air quality detection device, which belongs to the technical field of air quality detection devices. The device comprises a fixing mechanism, a driving mechanism, a detection mechanism and an air guiding mechanism. The fixing mechanism comprises a shell, a support arm is arranged on the outer surface of the shell, a fixing frame and a movable frame are arranged on the inner side of the shell, a column is installed on the upper surface of the fixing frame, and the movable frame is driven to move upward by the elastic force of a No. 1 spring until the movable frame abuts against the baffle plate, and the movable frame drives the sliding frame to move upward during the movement, so as to adjust the angle of the slide rail and the fastener, so that the fastener fastens the kit and fixes the position of the kit and the support arm. The user can drive the screw to rotate by rotating the rotating handle, so as to adjust the position of the screw and the pressure plate, apply pressure to the movable frame, and then drive the slide rail to rotate outward, and the fastener is unhooked. In this way, it is possible to avoid the situation where the driving structure is damaged and the progress of air detection is affected.

Description

Technical Field

[0001] The invention belongs to the technical field of air quality detection equipment, and in particular, relates to a flying miniature air quality detection equipment. Background Art

[0002] Air quality detection equipment is a practical device that detects air quality through sensing components such as PM2.5 sensors, and obtains air quality detection functions based on the detected data. Among them, flying micro air quality detection equipment is an air quality detection equipment that achieves self-drive through flying to reach various locations for detection. In the actual use of air quality detection equipment, the existing flying micro air quality detection equipment often achieves its flight function through an unmanned aerial vehicle group in its own structure, and the unmanned aerial vehicle group is highly integrated in structure and has the fragile nature of electronic equipment. When a group of fan drive structures is damaged, the maintenance work is more complicated, which may affect the air quality detection process and needs to be improved.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0005] A flying miniature air quality detection device comprises a fixing mechanism, a driving mechanism, a detection mechanism and an air guiding mechanism, wherein the fixing mechanism comprises an outer shell, a supporting arm is arranged on the outer surface of the outer shell, a fixing frame and a movable frame are arranged on the inner side of the outer shell, a column is arranged on the upper surface of the fixing frame, a No. 1 spring is arranged between the fixing frame and the movable frame, a slide rail is rotatably connected to the outer surface of the fixing frame, a slide frame is fixedly installed on the outer surface of the movable frame, a fastener is arranged at one end of the slide rail, a reinforcing rib is arranged on the inner side of the supporting arm, a kit is arranged at one end of the reinforcing rib, a screw hole is penetrated through the upper surface of the outer shell, a screw rod is threadedly connected to the inner side of the screw hole, and a pressure plate is arranged on the lower surface of the screw rod.

[0006] As a further solution of the present invention: the fixed frame and the movable frame are both annular in shape, the fixed frame is fixedly mounted on the inner side of the shell, the movable frame is slidably connected to the shell, and the movable frame is sleeved on the outer surface of the column.

[0007] As a further solution of the present invention: the support arm is fitted with the outer shell, the sliding frame is slidably connected to the slide rail, one end of the reinforcing rib penetrates the outer surface of the support arm, the kit is sleeved on the outer surface of the fastener, and the fastener is fitted with the kit.

[0008] As a further solution of the present invention: the No. 1 spring sleeve is arranged on the outer surface of the column, a baffle is installed on the top of the column, the movable frame is fitted with the baffle, a rotating handle is installed on the top of the screw, and the pressure plate is fitted with the upper surface of the movable frame.

[0009] As a further solution of the present invention: the driving mechanism includes a motor, blades and a protective frame, the motor is fixedly connected to the other end of the reinforcing rib, the motor is mounted on the outer surface of the support arm, the blades are fixedly connected to the output end of the motor, the blades are arranged as an arc surface structure, the protective frame is mounted on the outer surface of the motor, the protective frame is sleeved on the outer surface of the blades, and the protective frame is arranged as a hollow mesh structure.

[0010] As a further solution of the present invention: the detection mechanism includes an outer cylinder, the outer surface of the outer cylinder and the inner side of the outer shell are both provided with threads, the outer cylinder is meshed with the outer shell through the threads, the bottom end of the outer cylinder is rotatably connected to a sealing plate, the upper surface of the sealing plate is equipped with a detector, the outer surface of the detector is equipped with contacts, and the contacts are distributed at equal intervals.

[0011] As a further solution of the present invention: a support frame is installed on the inner upper surface of the outer cylinder, and the side surface of the support frame is rotatably connected with an electric telescopic rod, and the output end of the electric telescopic rod is rotatably connected with a sealing plate, and a micro air pump is installed on the upper surface of the sealing plate, and a hose is installed on the output end of the micro air pump, and an annular air bag is installed on the outer surface of the sealing plate, an annular groove is opened at the inner bottom end of the outer cylinder, and the annular air bag is fitted with the inner wall of the annular groove, one end of the hose passes through the inner side of the sealing plate and is connected with the annular air bag, and an arc-shaped telescopic rod is installed on the lower surface of the sealing plate.

[0012] As a further solution of the present invention: the air guide mechanism includes an air guide plate and an annular frame, the air guide plate is installed on the upper surface of the sealing plate, the shape of the air guide plate is arc-shaped, the air guide plate is located at the rear end of the detector, and the outer surface of the annular frame is penetrated by air guide grooves, and the air guide grooves are distributed at equal intervals around the circumference.

[0013] As a further solution of the present invention: a storage groove is provided on the lower surface of the shell, the storage groove is in the shape of a ring, the storage groove is sleeved on the outer surface of the ring frame, the ring frame is slidingly connected to the storage groove, the ring frame is rotatably connected to the telescopic end of the arc-shaped telescopic rod, and the ring frame is sleeved on the outer surface of the sealing plate.

[0014] As a further solution of the present invention: a hollow rod is installed on the outer surface of the annular frame, a sliding rod is slidably connected to the inner side of the hollow rod, a buffer plate is rotatably connected to the bottom end of the sliding rod, the buffer plate is arc-shaped, one end of the buffer plate is rotatably connected to the annular frame, and a No. 2 spring is installed between the buffer plate and the hollow rod.

[0015] Beneficial effects:

[0016] 1. The movable frame is driven upward by the elastic force of spring No. 1, and the moving range of the movable frame is limited by the column until the movable frame is against the baffle. The movable frame drives the sliding frame upward during the movement, so as to adjust the angle of the slide rail and the fastener, so that the fastener fastens the kit, fixes the position of the kit and the support arm, and ensures the stability of the connection between the shell and the support arm. When the motor is damaged, the user can drive the screw to rotate by rotating the rotating handle, so as to adjust the position of the screw and the pressure plate, and apply pressure to the movable frame, so that the movable frame and the sliding frame move downward, thereby driving the slide rail to rotate outward, and the fastener is unhooked, and the kit and the support arm can be removed for component replacement. In this way, the damage of the driving structure can be avoided to affect the progress of air detection.

[0017] 2. The detector is stored in the outer tube and the sealing plate to prevent the detector from affecting the flight stability or being damaged by external collision. The sealing plate is adjusted in angle by the extension and retraction of the electric telescopic rod, so that the sealing plate is rotated and unfolded, and the detector performs the detection of the corresponding values. After the detection is completed, the electric telescopic rod is retracted to drive the sealing plate to close, and the micro air pump is started to inflate the inside of the annular airbag through the hose. The annular airbag expands inside the annular groove until it fits with the annular groove to ensure the perfection of the sealing function of the sealing plate.

[0018] 3. When the sealing plate is unfolded, the arc-shaped telescopic rod is also adjusted accordingly, thereby driving the annular frame to extend from the inside of the storage slot. At this time, the airflow can only enter the inside of the annular frame through the air guide slot, and the airflow is guided by the air guide plate during the detection process, reducing the impact of wind pressure on flight stability during the detection process. During the landing process, the elastic force of the No. 2 spring and the arc-shaped structure of the buffer plate are used to buffer the impact, making the lifting and lowering process more stable.

[0019] The specific implementation modes of the present invention are further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In the attached picture:

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the connection mechanism of the present invention;

[0023] Figure 3 It is a schematic diagram of the exploded structure of the connecting mechanism of the present invention;

[0024] Figure 4 For the present invention Figure 2 A magnified schematic diagram of point A;

[0025] Figure 5 This is a schematic diagram of the explosion from an upward angle of the present invention;

[0026] Figure 6 For the present invention Figure 5 Schematic diagram of a side view;

[0027] Figure 7 For the present invention Figure 6 A partial structural diagram of

[0028] Figure 8 For the present invention Figure 7 An enlarged schematic diagram of point B.

[0029] In the figure: 1. shell; 2. support arm; 3. fixed frame; 4. mobile frame; 5. column; 6. spring No. 1; 7. slide rail; 8. sliding frame; 9. fastener; 10. reinforcing rib; 11. kit; 12. screw; 13. pressure plate; 14. motor; 15. blade; 16. protective frame; 17. outer cylinder; 18. sealing plate; 19. detector; 20. electric telescopic rod; 21. micro air pump; 22. hose; 23. annular air bag; 24. arc-shaped telescopic rod; 25. annular frame; 26. air guide groove; 27. storage groove; 28. hollow rod; 29. ​​slide rod; 30. buffer plate; 31. spring No. 2. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention.

[0031] like Figures 1 to 4 As shown, a flying miniature air quality detection device includes a fixing mechanism, a driving mechanism, a detection mechanism and an air guide mechanism, the fixing mechanism includes a shell 1, the outer surface of the shell 1 is provided with a support arm 2, the inner side of the shell 1 is provided with a fixed frame 3 and a movable frame 4, the upper surface of the fixed frame 3 is provided with a column 5, a No. 1 spring 6 is installed between the fixed frame 3 and the movable frame 4, the outer surface of the fixed frame 3 is rotatably connected with a slide rail 7, the outer surface of the movable frame 4 is fixedly installed with a slide frame 8, one end of the slide rail 7 is provided with a fastener 9, the inner side of the support arm 2 is provided with a reinforcing rib 10, one end of the reinforcing rib 10 is provided with a kit 11, a screw hole is opened through the upper surface of the shell 1, the inner side of the screw hole is threadedly connected with a screw rod 12, and the lower surface of the screw rod 12 is provided with a pressing plate 13.

[0032] The movable frame 4 is driven upward by the elastic force of the No. 1 spring 6, and the moving range of the movable frame 4 is limited by the column 5 until the movable frame 4 is against the baffle. The movable frame 4 drives the sliding frame 8 to move upward during the movement, so as to adjust the angle of the slide rail 7 and the fastener 9, so that the fastener 9 fastens the kit 11, fixes the position of the kit 11 and the support arm 2, and ensures the stability of the connection between the shell 1 and the support arm 2. When the motor 14 is damaged, the user can drive the screw 12 to rotate by rotating the rotating handle, so as to adjust the position of the screw 12 and the pressure plate 13, and apply pressure to the movable frame 4, so that the movable frame 4 and the sliding frame 8 move downward, and then drive the slide rail 7 to rotate outward, and the fastener 9 is unhooked, and the kit 11 and the support arm 2 can be removed for component replacement. In this way, the damage of the driving structure can be avoided to affect the progress of air detection.

[0033] Specifically, Figure 4 As shown, the fixed frame 3 and the movable frame 4 are both annular in shape. The fixed frame 3 is fixedly installed on the inner side of the outer shell 1 , and the movable frame 4 is slidably connected to the outer shell 1 . The movable frame 4 is sleeved on the outer surface of the column 5 .

[0034] This design is to preliminarily limit the moving trajectory of the mobile frame 4 and realize the position fixing function of the fixed frame 3. Through the annular structural design, the mobile frame 4 can act on the multiple groups of support arms 2 around the shell 1 during movement.

[0035] Specifically, Figure 2 As shown, the support arm 2 is fitted with the housing 1, the sliding frame 8 is slidably connected with the slide rail 7, one end of the reinforcing rib 10 penetrates the outer surface of the support arm 2, the sleeve 11 is sleeved on the outer surface of the fastener 9, and the fastener 9 is fitted with the sleeve 11.

[0036] By further limiting the position of the support arm 2 , a certain support surface can be obtained on the housing 1 , and the position fixing function of the support arm 2 can be achieved by fastening the kit 11 with the fastener 9 .

[0037] Specifically, Figure 1 and Figure 4 As shown, the No. 1 spring 6 is sleeved on the outer surface of the column 5, a baffle is installed at the top of the column 5, the movable frame 4 is fitted with the baffle, a rotating handle is installed at the top of the screw rod 12, and the pressure plate 13 is fitted with the upper surface of the movable frame 4.

[0038] This design is intended to limit the force trajectory of spring No. 1 6. The elastic force of spring No. 1 6 drives the movable frame 4 to move upward until the movable frame 4 contacts the baffle. The user can rotate the screw rod 12 by rotating the rotating handle to adjust the position of the screw rod 12 and the pressure plate 13 to apply pressure to the movable frame 4.

[0039] Specifically, Figure 3 As shown, the driving mechanism includes a motor 14, a blade 15 and a protective frame 16. The motor 14 is fixedly connected to the other end of the reinforcing rib 10, and the motor 14 is mounted on the outer surface of the support arm 2. The blade 15 is fixedly connected to the output end of the motor 14. The blade 15 is configured as an arc surface structure, and the protective frame 16 is mounted on the outer surface of the motor 14. The protective frame 16 is sleeved on the outer surface of the blade 15, and the protective frame 16 is configured as a hollow mesh structure.

[0040] The reinforcing ribs 10 and the support arms 2 can ensure the stability of the operation of the motor 14, and the protective frame 16 can realize the protection function of the blades 15. The operation of the motor 14 can drive the blades 15 to rotate, thereby generating power and driving the housing 1 to freely adjust its position.

[0041] Specifically, Figures 5 to 7 As shown, the detection mechanism includes an outer cylinder 17, the outer surface of the outer cylinder 17 and the inner side of the outer shell 1 are both provided with threads, the outer cylinder 17 is meshed with the outer shell 1 through the threads, the bottom end of the outer cylinder 17 is rotatably connected to a sealing plate 18, the upper surface of the sealing plate 18 is provided with a detector 19, the outer surface of the detector 19 is provided with contacts, and the contacts are evenly spaced.

[0042] The detector 19 is housed by the outer tube 17 and the sealing plate 18 to prevent the detector 19 from affecting the flight stability or being damaged by external collision. The sealing plate 18 is rotated and unfolded, and the detector 19 performs detection of corresponding values.

[0043] Specifically, Figure 7 As shown, a support frame is installed on the inner upper surface of the outer cylinder 17, and an electric telescopic rod 20 is rotatably connected to the side surface of the support frame. The output end of the electric telescopic rod 20 is rotatably connected to the sealing plate 18, and a micro air pump 21 is installed on the upper surface of the sealing plate 18. A hose 22 is installed on the output end of the micro air pump 21. An annular air bag 23 is installed on the outer surface of the sealing plate 18. An annular groove is provided at the inner bottom end of the outer cylinder 17, and the annular air bag 23 fits with the inner wall of the annular groove. One end of the hose 22 passes through the inner side of the sealing plate 18 and is connected to the annular air bag 23. An arc-shaped telescopic rod 24 is installed on the lower surface of the sealing plate 18.

[0044] The support frame can provide stable support for the operation of the electric telescopic rod 20. The extension and retraction of the electric telescopic rod 20 drives the sealing plate 18 to adjust its angle. After the detection is completed, the electric telescopic rod 20 contracts to drive the sealing plate 18 to close, and the micro air pump 21 is started to inflate the inside of the annular airbag 23 through the hose 22. The annular airbag 23 expands inside the annular groove until it fits with the annular groove, thereby ensuring the perfection of the sealing function of the sealing plate 18.

[0045] Specifically, Figure 7As shown, the air guide mechanism includes an air guide plate and an annular frame 25. The air guide plate is installed on the upper surface of the sealing plate 18. The air guide plate is arc-shaped. The air guide plate is located at the rear end of the detector 19. The outer surface of the annular frame 25 is penetrated by air guide grooves 26, and the air guide grooves 26 are distributed at equal intervals around the circumference.

[0046] When the sealing plate 18 is unfolded, the airflow can only enter the inner side of the annular frame 25 through the air guide groove 26, and the airflow is guided by the air guide plate during the detection process, thereby reducing the influence of wind pressure on flight stability during the detection process.

[0047] Specifically, Figure 5 As shown, a storage groove 27 is provided on the lower surface of the shell 1, and the storage groove 27 is annular in shape. The storage groove 27 is sleeved on the outer surface of the annular frame 25, and the annular frame 25 is slidably connected to the storage groove 27. The annular frame 25 is rotatably connected to the telescopic end of the arc-shaped telescopic rod 24, and the annular frame 25 is sleeved on the outer surface of the sealing plate 18.

[0048] This design is to realize the storage function of the annular frame 25 and to limit the telescopic trajectory of the annular frame 25. When the sealing plate 18 is unfolded, the arc-shaped telescopic rod 24 is also adjusted accordingly, thereby driving the annular frame 25 to extend from the inner side of the storage groove 27.

[0049] Specifically, Figure 8 As shown, the outer surface of the annular frame 25 is provided with a hollow rod 28, the inner side of the hollow rod 28 is slidably connected with a slide rod 29, the bottom end of the slide rod 29 is rotatably connected with a buffer plate 30, the shape of the buffer plate 30 is arc-shaped, one end of the buffer plate 30 is rotatably connected to the annular frame 25, and a No. 2 spring 31 is installed between the buffer plate 30 and the hollow rod 28.

[0050] By sliding the slide rod 29 on the inner side of the hollow rod 28, the rotation trajectory of the buffer plate 30 can be further limited. The impact can be buffered by the elastic force of the No. 2 spring 31 and the arc-shaped structure of the buffer plate 30, making the lifting process more stable and avoiding vibration from causing damage to the flying miniature air quality detection equipment.

[0051] Working principle:

[0052] The movable frame 4 is driven to move up by the elastic force of the No. 1 spring 6, and the moving range of the movable frame 4 is limited by the column 5 until the movable frame 4 is against the baffle. The movable frame 4 drives the sliding frame 8 to move up during the movement, so as to adjust the angle of the slide rail 7 and the fastener 9, so that the fastener 9 fastens the kit 11, fixes the position of the kit 11 and the support arm 2, and ensures the stability of the connection between the shell 1 and the support arm 2. When the motor 14 is damaged, the user can drive the screw 12 to rotate by rotating the rotating handle, so as to adjust the position of the screw 12 and the pressure plate 13, and apply pressure to the movable frame 4, so that the movable frame 4 and the sliding frame 8 move down, and then drive the slide rail 7 to rotate outward, and the fastener 9 is unhooked, and the kit 11 and the support arm 2 can be removed for component replacement. In this way, the situation that the damage of the driving structure affects the progress of air detection can be avoided. The operation of the motor 14 drives the blade 15 to rotate, thereby generating power, driving the shell 1 to freely adjust the position, and the outer cylinder 17 and the sealing plate 18 are used to The detector 19 is stored to prevent the detector 19 from affecting the flight stability or being damaged by external collision. The electric telescopic rod 20 is extended and retracted to drive the sealing plate 18 to adjust the angle so that the sealing plate 18 rotates and unfolds. The detector 19 performs the detection of the corresponding value. After the detection is completed, the electric telescopic rod 20 contracts to drive the sealing plate 18 to close, and the micro air pump 21 is started to inflate the inside of the annular airbag 23 through the hose 22. The annular airbag 23 expands inside the annular groove until it fits with the annular groove to ensure the perfection of the sealing function of the sealing plate 18. During the unfolding of the sealing plate 18, the arc-shaped telescopic rod 24 is also adjusted accordingly, thereby driving the annular frame 25 to extend from the inside of the storage groove 27. At this time, the airflow can only enter the inside of the annular frame 25 through the air guide groove 26, and the airflow is guided by the air guide plate during the detection process, thereby reducing the influence of wind pressure on flight stability during the detection process. In the landing process, the impact is buffered by the elastic force of the second spring 31 and the arc-shaped structure of the buffer plate 30, making the lifting process more stable.

[0053] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A flying miniature air quality detection device, comprising a fixing mechanism, a driving mechanism, a detection mechanism and an air guide mechanism, characterized in that: The fixing mechanism comprises a shell (1), the outer surface of the shell (1) is provided with a support arm (2), the inner side of the shell (1) is provided with a fixed frame (3) and a movable frame (4), the upper surface of the fixed frame (3) is provided with a column (5), a No. 1 spring (6) is provided between the fixed frame (3) and the movable frame (4), the outer surface of the fixed frame (3) is rotatably connected with a slide rail (7), the outer surface of the movable frame (4) is fixedly provided with a slide rail (8), one end of the slide rail (7) is provided with a fastener (9), the inner side of the support arm (2) is provided with a reinforcing rib (10), one end of the reinforcing rib (10) is provided with a sleeve (11), a screw hole is provided through the upper surface of the shell (1), a screw rod (12) is threadedly connected to the inner side of the screw hole, and a pressure plate (13) is provided on the lower surface of the screw rod (12); The support arm (2) is fitted with the housing (1), the sliding frame (8) is slidably connected with the slide rail (7), one end of the reinforcing rib (10) penetrates the outer surface of the support arm (2), the sleeve (11) is sleeved on the outer surface of the fastener (9), and the fastener (9) is fitted with the sleeve (11); The detection mechanism comprises an outer cylinder (17), the outer surface of the outer cylinder (17) and the inner side of the outer shell (1) are both provided with threads, the outer cylinder (17) is meshed with the outer shell (1) via the threads, the bottom end of the outer cylinder (17) is rotatably connected to a sealing plate (18), the upper surface of the sealing plate (18) is provided with a detector (19), the outer surface of the detector (19) is provided with contacts, and the contacts are distributed at equal intervals; The air guide mechanism comprises an air guide plate and an annular frame (25); the air guide plate is mounted on the upper surface of the sealing plate (18); the air guide plate is arc-shaped; the air guide plate is located at the rear end of the detector (19); an outer surface of the annular frame (25) is provided with air guide grooves (26); the air guide grooves (26) are distributed at equal intervals around the circumference.

2. A flying miniature air quality detection device according to claim 1, characterized in that: The fixed frame (3) and the movable frame (4) are both annular in shape; the fixed frame (3) is fixedly mounted on the inner side of the outer shell (1); the movable frame (4) is slidably connected to the outer shell (1); and the movable frame (4) is sleeved on the outer surface of the column (5).

3. A flying miniature air quality detection device according to claim 1, characterized in that: The first spring (6) is sleeved on the outer surface of the column (5), a baffle is provided at the top of the column (5), the movable frame (4) is fitted with the baffle, a rotating handle is provided at the top of the screw rod (12), and the pressing plate (13) is fitted with the upper surface of the movable frame (4).

4. A flying miniature air quality detection device according to claim 1, characterized in that: The driving mechanism comprises a motor (14), a blade (15) and a protective frame (16); the motor (14) is fixedly connected to the other end of the reinforcing rib (10); the motor (14) is mounted on the outer surface of the support arm (2); the blade (15) is fixedly connected to the output end of the motor (14); the blade (15) is configured as a curved surface structure; the protective frame (16) is mounted on the outer surface of the motor (14); the protective frame (16) is sleeved on the outer surface of the blade (15); and the protective frame (16) is configured as a hollow mesh structure.

5. A flying miniature air quality detection device according to claim 1, characterized in that: The inner upper surface of the outer cylinder (17) is provided with a support frame, the side surface of the support frame is rotatably connected to an electric telescopic rod (20), the output end of the electric telescopic rod (20) is rotatably connected to the sealing plate (18), the upper surface of the sealing plate (18) is provided with a micro air pump (21), the output end of the micro air pump (21) is provided with a hose (22), the outer surface of the sealing plate (18) is provided with an annular air bag (23), the inner bottom end of the outer cylinder (17) is provided with an annular groove, the annular air bag (23) is fitted with the inner wall of the annular groove, one end of the hose (22) passes through the inner side of the sealing plate (18) and is connected to the annular air bag (23), and the lower surface of the sealing plate (18) is provided with an arc-shaped telescopic rod (24).

6. A flying miniature air quality detection device according to claim 1, characterized in that: The lower surface of the housing (1) is provided with a receiving groove (27), the receiving groove (27) being annular in shape, the receiving groove (27) being sleeved on the outer surface of the annular frame (25), the annular frame (25) being slidably connected to the receiving groove (27), the annular frame (25) being rotatably connected to the telescopic end of the arc-shaped telescopic rod (24), and the annular frame (25) being sleeved on the outer surface of the sealing plate (18).

7. A flying miniature air quality detection device according to claim 6, characterized in that: The outer surface of the annular frame (25) is provided with a hollow rod (28), the inner side of the hollow rod (28) is slidably connected with a slide rod (29), the bottom end of the slide rod (29) is rotatably connected with a buffer plate (30), the buffer plate (30) is in an arc shape, one end of the buffer plate (30) is rotatably connected to the annular frame (25), and a second spring (31) is provided between the buffer plate (30) and the hollow rod (28).

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