Low-altitude air quality monitoring device based on unmanned aerial vehicle and use method of low-altitude air quality monitoring device

Abstract

The invention discloses a low-altitude air quality monitoring device based on an unmanned aerial vehicle and a using method thereof.The low-altitude air quality monitoring device comprises an unmanned aerial vehicle body, a mounting frame is fixedly connected to the top of the unmanned aerial vehicle body, an air quality detector body is detachably connected to an inner cavity of the mounting frame, and a mounting mechanism is arranged on the back face of the mounting frame; a fixing frame is fixedly connected to the bottom of the unmanned aerial vehicle body, and supporting legs are fixedly connected to the periphery of the bottom of the fixing frame. By arranging the thin film photovoltaic panel, solar energy can be converted into electric energy on sunny days, the electric energy is stored in a battery of the unmanned aerial vehicle body through the controller, so that the cruising ability of the unmanned aerial vehicle body is improved to a certain extent, and by arranging the damping mechanism, vibration generated by the unmanned aerial vehicle body can be buffered when the unmanned aerial vehicle body lands on the ground, and the safety of the unmanned aerial vehicle body is improved. Therefore, the influence of vibration on internal elements of the unmanned aerial vehicle body and the air quality detector body is reduced, and the service life of the unmanned aerial vehicle body and the air quality detector body is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of air quality monitoring, and in particular to a low-altitude air quality monitoring device based on an unmanned aerial vehicle and a use method thereof. Background Art

[0002] The drone low-altitude air monitoring technology uses the air quality detector equipped with the drone to monitor the air quality in the low-altitude area in real time. This technology combines the flexibility of the drone with modern sensor technology to achieve efficient and accurate environmental data collection;

[0003] Drones provide a flexible flying platform that can perform detection at different altitudes and locations, while air quality detectors are responsible for the actual analysis of air composition. The combination of drones and air quality detectors can significantly improve the efficiency and accuracy of air monitoring. However, due to the limited battery life of drones, batteries may need to be frequently replaced or recharged during use, which affects the efficiency of air quality detection. At the same time, when the drone falls, it is easy to collide with the ground due to inertia, which can easily cause the internal parts of the drone and air quality detector to loosen, thereby affecting their service life. Summary of the invention

[0004] The purpose of the present invention is to provide a low-altitude air quality monitoring device based on a drone and a method of using the same, which has the advantage of increasing the battery life and solves the problem that due to the limited battery life of the drone, the battery may need to be frequently replaced or recharged during use, thereby affecting the air quality detection efficiency. At the same time, when the drone falls, it is easy to collide with the ground due to inertia, which can easily cause the parts inside the drone and the air quality detector to loosen, thereby affecting their service life.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a low-altitude air quality monitoring device based on a drone and a method for using the same, comprising a drone body, a mounting frame fixedly connected to the top of the drone body, an air quality detector body detachably connected to the inner cavity of the mounting frame, a mounting mechanism arranged on the back of the mounting frame, a fixing frame fixedly connected to the bottom of the drone body, legs fixedly connected to the bottom of the fixing frame, a shock absorbing mechanism arranged on the surface of the legs, thin-film photovoltaic panels arranged on the upper and lower ends of the inner cavity of the fixing frame, and a mounting mechanism arranged on the back of the mounting frame. The structure includes a positioning frame, which is located on the back of the air quality detector body and fixedly connected to the air quality detector body. The back of the mounting frame is fixedly connected to a fixing frame, and the inner cavity of the fixing frame is slidably connected to a positioning plate. The bottom of the positioning plate extends to the inner cavity of the positioning frame and engages with the inner cavity of the positioning frame. The shock absorbing mechanism includes a limiting ring, which is located at the bottom of the support leg and fixedly connected to the bottom of the support leg. A base foot is provided at the bottom of the limiting ring, and a fixing column is slidably connected to the inner cavity of the limiting ring, and the bottom of the fixing column is fixedly connected to the top of the base foot.

[0006] Preferably, fixing grooves are provided at the upper and lower ends of both sides of the inner cavity of the fixing frame, and multi-section electric telescopic rods are fixedly connected to the front side of the inner cavity of the upper fixing groove and the front side of the inner cavity of the lower fixing groove, and connecting grooves are provided at the upper and lower ends of both sides of the inner cavity of the fixing frame, and the inner cavity of the connecting groove is slidably connected with a connecting piece, one side of the connecting piece is fixedly connected to the thin-film photovoltaic panel, and the other end of the connecting piece is fixedly connected to the multi-section electric telescopic rod.

[0007] Preferably, a pull rod is fixedly connected to the top of the positioning plate, a fixing plate is slidably connected to the inner cavity of the positioning plate, two sides of the fixing plate pass through the positioning plate and are fixedly connected to the inner wall of the fixing frame, and compression springs are fixedly connected to both sides of the bottom of the fixing plate, and the bottom of the compression spring is fixedly connected to the bottom of the inner cavity of the positioning plate.

[0008] Preferably, both the top and bottom of the support leg are provided with a receiving groove, the top of the inner cavity of the lower end of the receiving groove is fixedly connected to a damper, the bottom of the damper is movably connected to a first connecting plate via a rotating shaft, and the bottom of the first connecting plate is movably connected to the top of the base leg via a rotating shaft.

[0009] Preferably, the inner cavity of the upper end of the accommodating groove is fixedly connected to a limiting column, the surface of the limiting column is slidably connected to a slider, the top of the slider is movably connected to a second connecting plate via a rotating shaft, and the bottom of the second connecting plate is movably connected to the top of the fixed column via a rotating shaft.

[0010] Preferably, a shock-absorbing spring is sleeved on the surface of the limit column and located on the upper end of the slider, the top and bottom of the shock-absorbing spring are fixedly connected to the inner wall of the upper accommodating groove and the top of the slider respectively, and the output end of the thin-film photovoltaic panel is electrically connected to the battery pack of the drone body through a controller.

[0011] Preferably, the method of use is as follows:

[0012] A. On cloudy days, the thin-film photovoltaic panels are stored in the inner cavity of the fixing frame. On sunny days, the position of the thin-film photovoltaic panels can be adjusted by starting the multi-section electric telescopic rod, so that the two thin-film photovoltaic panels can be extended from the inner cavity of the fixing frame to the front and back respectively. After being extended, they can be exposed to sunlight, convert solar energy into electrical energy, and replenish a small amount of electrical energy to the battery of the drone body, thereby increasing the endurance function of the drone body. When the air quality detector body needs to be disassembled and maintained, first pull the pull rod upward, and the pull rod drives the positioning plate to move up and move it out of the inner cavity of the positioning frame. During this process, the inner wall of the positioning plate will squeeze the compression spring and cause the compression spring to deform. The reset elastic force of the compression spring can reset the positioning plate to the inner cavity of the positioning frame when the air quality detector body is reinstalled. When the positioning plate is completely moved out of the inner cavity of the positioning frame, the air quality detector body can be taken out of the inner cavity of the installation frame;

[0013] B. When the drone body contacts the ground during its falling process, the inertia of the drone body causes it to vibrate as a whole, causing the limit ring to move downward on the surface of the fixed column. During the movement of the limit ring, the position change causes the angles of the first connecting plate and the second connecting plate to deflect. When the angle of the second connecting plate deflects, it can drive the slider to slide on the surface of the limit column. While sliding, the slider can squeeze the shock-absorbing spring and deform the shock-absorbing spring. The reset elastic force of the shock-absorbing spring can cooperate with the damper to buffer the vibration, thereby reducing the overall amplitude of the drone body and reducing the negative impact of vibration on the drone body and the internal components of the air quality detector body.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The present invention provides an unmanned aerial vehicle body, an installation frame and an air quality detector body. The installation frame is used to install the air quality detector body. The unmanned aerial vehicle body can drive the air quality detector body to move, thereby making the use of the air quality detector body more flexible and improving the detection effect of air quality. The installation mechanism facilitates the installation and disassembly of the air quality detector body, thereby facilitating regular maintenance thereof. A fixed frame is provided to support a thin-film photovoltaic panel. The thin-film photovoltaic panel can convert solar energy into electrical energy on sunny days and store it in a battery of the unmanned aerial vehicle body through a controller, thereby increasing the endurance of the unmanned aerial vehicle body to a certain extent. A shock-absorbing mechanism is provided to buffer the vibration generated by the unmanned aerial vehicle body when it lands on the ground, reduce its vibration amplitude, thereby reducing the impact of the vibration on the internal components of the unmanned aerial vehicle body and the air quality detector body, and increasing their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the connection structure between the drone body and the mounting frame of the present invention;

[0017] Figure 2 It is a schematic diagram of the main plane structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the front cross-sectional structure of the fixing frame and the supporting legs of the present invention;

[0019] Figure 4 It is a structural schematic diagram of the fixed frame and the positioning plate of the present invention in a separated state;

[0020] Figure 5 It is a schematic structural diagram of the fixed frame and the thin-film photovoltaic panel in the separated state of the present invention;

[0021] Figure 6 For the present invention Figure 3 A partial enlarged view of point A in the middle.

[0022] In the figure: 1. UAV body; 2. Installation frame; 3. Air quality detector body; 4. Installation mechanism; 401. Positioning frame; 402. Fixing frame; 403. Positioning plate; 404. Pull rod; 405. Fixing plate; 406. Compression spring; 5. Fixing frame; 6. Support foot; 7. Shock absorbing mechanism; 701. Limiting ring; 702. Bottom foot; 703. Fixing column; 704. Accommodating groove; 705. Damper; 706. First connecting plate; 707. Limiting column; 708. Slider; 709. Second connecting plate; 710. Shock absorbing spring; 8. Thin-film photovoltaic panel; 9. Fixing groove; 10. Multi-section electric telescopic rod; 11. Connecting groove; 12. Connecting piece. DETAILED DESCRIPTION

[0023] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0024] The drone body 1, installation frame 2, air quality detector body 3, installation mechanism 4, positioning frame 401, fixing frame 402, positioning plate 403, pull rod 404, fixing plate 405, compression spring 406, fixing frame 5, support foot 6, shock absorbing mechanism 7, limiting ring 701, base foot 702, fixing column 703, accommodating groove 704, damper 705, first connecting plate 706, limiting column 707, slider 708, second connecting plate 709, shock absorbing spring 710, thin-film photovoltaic panel 8, fixing groove 9, multi-section electric telescopic rod 10, connecting groove 11, and connecting piece 12 of the present invention are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or through conventional experimental methods.

[0025] Example 1

[0026] like Figure 1-6 As shown, it is the first embodiment of the present invention, which provides a low-altitude air quality monitoring device based on a drone and a method of using the same, including a drone body 1, a mounting frame 2 is fixedly connected to the top of the drone body 1, an air quality detector body 3 is detachably connected to the inner cavity of the mounting frame 2, a mounting mechanism 4 is arranged on the back of the mounting frame 2, a fixing frame 5 is fixedly connected to the bottom of the drone body 1, legs 6 are fixedly connected to the bottom of the fixing frame 5, a shock absorbing mechanism 7 is arranged on the surface of the legs 6, a thin-film photovoltaic panel 8 is arranged at the upper and lower ends of the inner cavity of the fixing frame 5, and the mounting mechanism 4 includes a positioning frame 401, and the positioning frame 401 is positioned On the back of the air quality detector body 3, and fixedly connected with the air quality detector body 3, the back of the mounting frame 2 is fixedly connected with a fixing frame 402, the inner cavity of the fixing frame 402 is slidably connected with a positioning plate 403, the bottom of the positioning plate 403 extends to the inner cavity of the positioning frame 401, and engages with the inner cavity of the positioning frame 401, the shock absorbing mechanism 7 includes a limiting ring 701, the limiting ring 701 is located at the bottom of the support foot 6, and is fixedly connected with the bottom of the support foot 6, the bottom of the limiting ring 701 is provided with a base foot 702, the inner cavity of the limiting ring 701 is slidably connected with a fixing column 703, and the bottom of the fixing column 703 is fixedly connected with the top of the base foot 702.

[0027] like Figure 1-6As shown, the mounting frame 2 is used to mount the air quality detector body 3, and the drone body 1 can drive the air quality detector body 3 to move, thereby making the use of the air quality detector body 3 more flexible and improving the air quality detection effect. The mounting mechanism 4 facilitates the installation and disassembly of the air quality detector body 3, thereby facilitating regular maintenance thereof. The fixing frame 5 is used to support the thin-film photovoltaic panel 8, which can convert solar energy into electrical energy on sunny days and store it in the battery of the drone body 1 through the controller, thereby increasing the endurance of the drone body 1 to a certain extent. The shock absorbing mechanism 7 can buffer the vibration generated by the drone body 1 when it lands on the ground, reduce its vibration amplitude, thereby reducing the impact of vibration on the drone body 1 and the internal components of the air quality detector body 3, and improving their service life.

[0028] Example 2

[0029] Reference Figure 4 , 5 and 6, which are the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0030] In this embodiment, fixing grooves 9 are provided at the upper and lower ends of both sides of the inner cavity of the fixing frame 5, and the front sides of the inner cavity of the upper fixing groove 9 and the front sides of the inner cavity of the lower fixing groove 9 are fixedly connected with multi-section electric telescopic rods 10. Connecting grooves 11 are provided at the upper and lower ends of both sides of the inner cavity of the fixing frame 5, and the inner cavity of the connecting groove 11 is slidably connected with a connecting piece 12, one side of the connecting piece 12 is fixedly connected to the thin-film photovoltaic panel 8, and the other end of the connecting piece 12 is fixedly connected to the multi-section electric telescopic rod 10.

[0031] A pull rod 404 is fixedly connected to the top of the positioning plate 403, a fixing plate 405 is slidably connected to the inner cavity of the positioning plate 403, both sides of the fixing plate 405 pass through the positioning plate 403 and are fixedly connected to the inner wall of the fixing frame 402, compression springs 406 are fixedly connected to both sides of the bottom of the fixing plate 405, and the bottom of the compression spring 406 is fixedly connected to the bottom of the inner cavity of the positioning plate 403.

[0032] like Figure 4 , 5As shown in FIG. 6 , on cloudy days, the thin-film photovoltaic panel 8 is stored in the inner cavity of the fixing frame 5. On sunny days, the position of the thin-film photovoltaic panel 8 can be adjusted by starting the multi-section electric telescopic rod 10, so that the two thin-film photovoltaic panels 8 are extended from the inner cavity of the fixing frame 5 to the front and back, respectively. After being extended, they can be exposed to sunlight, convert solar energy into electrical energy, and replenish a small amount of electrical energy to the battery of the drone body 1, thereby increasing the endurance function of the drone body 1. When the air quality detector body 3 needs to be disassembled for maintenance, first pull the pull rod 40 upwards. 4. The pull rod 404 drives the positioning plate 403 to move upward and move it out of the inner cavity of the positioning frame 401. During this process, the inner wall of the positioning plate 403 will squeeze the compression spring 406 and cause the compression spring 406 to deform. The reset elastic force of the compression spring 406 can reset the positioning plate 403 to the inner cavity of the positioning frame 401 when the air quality detector body 3 is reinstalled. When the positioning plate 403 is completely moved out of the inner cavity of the positioning frame 401, the air quality detector body 3 can be taken out from the inner cavity of the installation frame 2.

[0033] Example 3

[0034] Reference Figure 3 , which is the third embodiment of the present invention, and this embodiment is based on the previous two embodiments.

[0035] In this embodiment, a receiving groove 704 is provided at the top and bottom of the support leg 6, a damper 705 is fixedly connected to the top of the inner cavity of the lower end receiving groove 704, the bottom of the damper 705 is movably connected to the first connecting plate 706 via a rotating shaft, and the bottom of the first connecting plate 706 is movably connected to the top of the base foot 702 via a rotating shaft.

[0036] The inner cavity of the upper end accommodating groove 704 is fixedly connected to a limiting column 707, the surface of the limiting column 707 is slidably connected to a slider 708, the top of the slider 708 is movably connected to a second connecting plate 709 via a rotating shaft, and the bottom of the second connecting plate 709 is movably connected to the top of the fixed column 703 via a rotating shaft.

[0037] A shock-absorbing spring 710 is sleeved on the surface of the limiting column 707 and located at the upper end of the slider 708. The top and bottom of the shock-absorbing spring 710 are fixedly connected to the inner wall of the upper end accommodating groove 704 and the top of the slider 708 respectively. The output end of the thin-film photovoltaic panel 8 is electrically connected to the battery pack of the drone body 1 through the controller.

[0038] like Figure 3As shown, when the drone body 1 contacts the ground during the falling process, the inertia of the drone body 1 causes it to vibrate as a whole, causing the limit ring 701 to move downward on the surface of the fixed column 703. During the movement of the limit ring 701, affected by the position change, the angles of the first connecting plate 706 and the second connecting plate 709 are deflected. When the angle of the second connecting plate 709 is deflected, it can drive the slider 708 to slide on the surface of the limit column 707. While sliding, the slider 708 can squeeze the shock-absorbing spring 710 and deform the shock-absorbing spring 710. The reset elastic force of the shock-absorbing spring 710 can cooperate with the damper 705 to buffer the vibration, thereby reducing the overall amplitude of the drone body 1 and reducing the negative impact of the vibration on the internal components of the drone body 1 and the air quality detector body 3.

[0039] A method for using a low-altitude air quality monitoring device based on a drone and a method for using the same, the method for using the device comprising the following steps:

[0040] On cloudy days, the thin-film photovoltaic panel 8 is stored in the inner cavity of the fixing frame 5. On sunny days, the position of the thin-film photovoltaic panel 8 can be adjusted by starting the multi-section electric telescopic rod 10, so that the two thin-film photovoltaic panels 8 are extended from the inner cavity of the fixing frame 5 to the front and back respectively. After extending, they can be exposed to sunlight, convert solar energy into electrical energy, and replenish a small amount of electrical energy to the battery of the drone body 1, thereby increasing the endurance function of the drone body 1. When the air quality detector body 3 needs to be disassembled and maintained, first pull the pull rod 404 upwards, and the pull rod 404 drives the positioning plate 403 to move upwards and move it out of the inner cavity of the positioning frame 401. During this process, the inner wall of the positioning plate 403 will squeeze the compression spring 406 and cause the compression spring 406 to deform. The reset elastic force of the compression spring 406 can reset the positioning plate 403 to the inner cavity of the positioning frame 401 when the air quality detector body 3 is reinstalled. When the positioning plate 403 is completely After being moved out of the inner cavity of the positioning frame 401, the air quality detector body 3 can be taken out from the inner cavity of the mounting frame 2. When the drone body 1 contacts the ground during its falling process, the inertia of the drone body 1 causes it to vibrate as a whole, causing the limit ring 701 to move downward on the surface of the fixed column 703. During the movement of the limit ring 701, the first connecting plate 706 and the second connecting plate 709 are deflected due to the change in position. When the angle of the second connecting plate 709 is deflected, it can drive the slider 708 to slide on the surface of the limit column 707. While sliding, the slider 708 can squeeze the shock-absorbing spring 710 and cause the shock-absorbing spring 710 to deform. The reset elastic force of the shock-absorbing spring 710 can cooperate with the damper 705 to buffer the vibration, thereby reducing the overall amplitude of the drone body 1 and reducing the negative impact of vibration on the internal components of the drone body 1 and the air quality detector body 3.

[0041] The standard parts used in this application document can all be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. The control method is automatic control through a controller. The control circuit of the controller can be implemented through simple programming by technicians in this field, which is common knowledge in the field. This application is mainly used to protect mechanical devices, so this application no longer explains the control method and circuit connection in detail.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-altitude air quality monitoring device based on an unmanned aerial vehicle, comprising an unmanned aerial vehicle body (1), characterized in that: The top of the drone body (1) is fixedly connected to a mounting frame (2), the inner cavity of the mounting frame (2) is detachably connected to an air quality detector body (3), a mounting mechanism (4) is arranged on the back of the mounting frame (2), a fixing frame (5) is fixedly connected to the bottom of the drone body (1), legs (6) are fixedly connected to the bottom of the fixing frame (5) on all sides, a shock absorbing mechanism (7) is arranged on the surface of the legs (6), thin-film photovoltaic panels (8) are arranged at the upper and lower ends of the inner cavity of the fixing frame (5), and the mounting mechanism (4) comprises a positioning frame (401), the positioning frame (401) is located on the back of the air quality detector body (3), and is connected to the air quality detector body (3) ), the back of the installation frame (2) is fixedly connected to a fixing frame (402), the inner cavity of the fixing frame (402) is slidably connected to a positioning plate (403), the bottom of the positioning plate (403) extends to the inner cavity of the positioning frame (401) and engages with the inner cavity of the positioning frame (401), the shock absorbing mechanism (7) comprises a limiting ring (701), the limiting ring (701) is located at the bottom of the support foot (6) and is fixedly connected to the bottom of the support foot (6), the bottom of the limiting ring (701) is provided with a base foot (702), the inner cavity of the limiting ring (701) is slidably connected to a fixing column (703), the bottom of the fixing column (703) is fixedly connected to the top of the base foot (702).

2. The low-altitude air quality monitoring device based on an unmanned aerial vehicle according to claim 1, characterized in that: The upper and lower ends of both sides of the inner cavity of the fixing frame (5) are provided with fixing grooves (9), and the front of the inner cavity of the upper fixing groove (9) and the front of the inner cavity of the lower fixing groove (9) are fixedly connected to multi-section electric telescopic rods (10). The upper and lower ends of both sides of the inner cavity of the fixing frame (5) are provided with connecting grooves (11), and the inner cavity of the connecting groove (11) is slidably connected to a connecting piece (12), one side of the connecting piece (12) is fixedly connected to the thin-film photovoltaic panel (8), and the other end of the connecting piece (12) is fixedly connected to the multi-section electric telescopic rod (10).

3. The low-altitude air quality monitoring device based on an unmanned aerial vehicle according to claim 1, characterized in that: The top of the positioning plate (403) is fixedly connected to a pull rod (404), the inner cavity of the positioning plate (403) is slidably connected to a fixing plate (405), both sides of the fixing plate (405) pass through the positioning plate (403) and are fixedly connected to the inner wall of the fixing frame (402), both sides of the bottom of the fixing plate (405) are fixedly connected to compression springs (406), and the bottom of the compression spring (406) is fixedly connected to the bottom of the inner cavity of the positioning plate (403).

4. The low-altitude air quality monitoring device based on an unmanned aerial vehicle according to claim 1 is characterized in that: The top and bottom of the support foot (6) are both provided with a receiving groove (704); the top of the inner cavity of the receiving groove (704) at the lower end is fixedly connected to a damper (705); the bottom of the damper (705) is movably connected to a first connecting plate (706) via a rotating shaft; the bottom of the first connecting plate (706) is movably connected to the top of the base foot (702) via a rotating shaft.

5. The low-altitude air quality monitoring device based on an unmanned aerial vehicle according to claim 4 is characterized in that: The inner cavity of the upper end accommodating groove (704) is fixedly connected to a limiting column (707), the surface of the limiting column (707) is slidably connected to a slider (708), the top of the slider (708) is movably connected to a second connecting plate (709) via a rotating shaft, and the bottom of the second connecting plate (709) is movably connected to the top of the fixed column (703) via a rotating shaft.

6. The low-altitude air quality monitoring device based on an unmanned aerial vehicle according to claim 5, characterized in that: A shock absorbing spring (710) is sleeved on the surface of the limiting column (707) and located at the upper end of the slider (708). The top and bottom of the shock absorbing spring (710) are respectively fixedly connected to the inner wall of the upper receiving groove (704) and the top of the slider (708). The output end of the thin-film photovoltaic panel (8) is electrically connected to the battery pack of the drone body (1) through a controller.

7. The method for using the low-altitude air quality monitoring device based on an unmanned aerial vehicle according to any one of claims 1 to 6, characterized in that: The steps for using it are as follows: A. On cloudy days, the thin-film photovoltaic panel (8) is stored in the inner cavity of the fixing frame (5). On sunny days, the position of the thin-film photovoltaic panel (8) can be adjusted by starting the multi-section electric telescopic rod (10), so that the two thin-film photovoltaic panels (8) are extended from the inner cavity of the fixing frame (5) to the front and back, respectively. After being extended, they can be exposed to sunlight, convert solar energy into electrical energy, and replenish a small amount of electrical energy to the battery of the drone body (1), thereby increasing the endurance of the drone body (1). When the air quality detector body (3) needs to be disassembled for maintenance, the pull rod (404) is first pulled upward, and the pull rod ( 404) drives the positioning plate (403) to move upward, so that it moves out of the inner cavity of the positioning frame (401). During this process, the inner wall of the positioning plate (403) squeezes the compression spring (406) and causes the compression spring (406) to deform. The restoring elastic force of the compression spring (406) can reset the positioning plate (403) to the inner cavity of the positioning frame (401) when the air quality detector body (3) is reinstalled. When the positioning plate (403) is completely moved out of the inner cavity of the positioning frame (401), the air quality detector body (3) can be taken out from the inner cavity of the installation frame (2); B. When the drone body (1) contacts the ground during its falling process, the inertia of the drone body (1) causes the drone body (1) to vibrate as a whole, causing the limit ring (701) to move downward on the surface of the fixing column (703). During the movement of the limit ring (701), the position change causes the angles of the first connecting plate (706) and the second connecting plate (709) to deflect. When the angle of the second connecting plate (709) deflects, it can drive the slider (708) to slide on the surface of the limit column (707). While sliding, the slider (708) can squeeze the shock-absorbing spring (710) and cause the shock-absorbing spring (710) to deform. The restoring elastic force of the shock-absorbing spring (710) can cooperate with the damper (705) to buffer the vibration, thereby reducing the overall amplitude of the drone body (1) and reducing the negative impact of the vibration on the internal components of the drone body (1) and the air quality detector body (3).

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