Gas collection device based on unmanned aerial vehicle

Abstract

The invention relates to the technical field of gas collection, and provides a gas collection device based on an unmanned aerial vehicle, which comprises an unmanned aerial vehicle main body provided with a plurality of flight support arms, and the plurality of flight support arms are circumferentially arranged; the gas collection module is arranged on the unmanned aerial vehicle main body; the wheel bodies are arranged at the bottom of the flying supporting arm, a clamping area is formed among the multiple wheel bodies, and the multiple wheel bodies are used for clamping the eaves in the clamping area and driving the gas collecting module to move. By means of the technical scheme, the problem that in the prior art, when an unmanned aerial vehicle hovers in a closed space and gas sampling is carried out, generated downwash gas flow can affect detection data is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of gas collection, and in particular to a gas collection device based on an unmanned aerial vehicle. Background Art

[0002] At present, for the treatment work in the biogas digester, since it contains harmful gases such as carbon dioxide, which can cause harm to people's health, smart drones are usually used to drive the gas collection module for gas sampling and data analysis, and the intelligent system is used to set and plan the best route. After that, the unmanned sampling stage is entered. The surrounding gas is sucked into the collection module through a micro pump or suction device. The sensor in the module can quickly detect the concentration of the target gas and transmit the data back to the control unit of the drone in real time. At the same time, through wireless communication technology, the data is transmitted back to the ground control center for real-time monitoring and analysis by operators to determine whether personnel can enter the biogas digester to complete the treatment work.

[0003] However, the above process has the following problems: during the unmanned sampling stage, in order to maintain a certain flight altitude, the downwash airflow generated by the rotation of the drone's blades will disturb the spatial distribution of harmful gases, affecting gas transportation, resulting in a large deviation between the measured value and the actual value, thereby affecting the detection of harmful gases and the study of gas diffusion laws. Summary of the invention

[0004] The present invention proposes a gas collection device based on a drone, which solves the problem in the related art that when the drone hovers in a closed space and performs gas sampling, the downwash airflow generated by the drone will affect the detection data.

[0005] The technical solution of the present invention is as follows: A gas collection device based on a drone, used for collecting gas inside a biogas tank, wherein the biogas tank has an eaves inside, comprising: A drone body, wherein the drone body has a plurality of flight arms, and the plurality of flight arms are arranged in a circle; A gas collection module, wherein the gas collection module is arranged on the drone body; A wheel body is arranged at the bottom of the flight support arm, and a clamping area is formed between a plurality of the wheel bodies. The plurality of the wheel bodies are used to clamp the eaves in the clamping area and drive the gas collection module to move.

[0006] As a further technical solution, the drone body includes: Two main frames, the two main frames are relatively stationary and arranged at intervals, the gas collection module is arranged between the two main frames, a plurality of flight arms are arranged along the circumference of the four main frames, and a plurality of flight arms are located between the two main frames, the height of the wheel body is lower than the height of the main frame below, the clamping area is formed between the plurality of wheel bodies and the main frame below, the bottom of the main frame below is used to abut against the top of the eaves, and the wheel body is used to abut against the side wall of the eaves.

[0007] As a further technical solution, the cross section of the main frame is circular, and the wheel body comprises: A wheel frame, wherein the wheel frame is arranged at the bottom of the flight support arm; A clamping wheel, wherein the clamping wheel is rotatably arranged on the wheel frame, and the rotation axis of the clamping wheel is parallel to the axis of the main frame.

[0008] As a further technical solution, there are four flight arms, each of which has a guide groove at its bottom, and the wheel frame is movably arranged in the guide groove. After the wheel frame moves, several of the clamping wheels move closer to or farther away from each other.

[0009] As a further technical solution, the gas collection module includes: The module body is arranged between the two main frames, and the module body has four collection ports, which are arranged along the circumference of the four main frames, and one collection port is located between two adjacent flight arms.

[0010] As a further technical solution, the module body is rotatably arranged between the two main frames, and the rotation axis of the module body is coaxially arranged with the axis of the main frame, and further comprises: A connecting piece, one end of which is connected to the module body, and the other end of which is connected to the wheel frame. When the module body rotates, the wheel frame is driven to move, and the collection port is driven to move closer to or away from the flight support arm.

[0011] As a further technical solution, the module body has a hinged portion, the connecting member is a connecting rod, one end of the connecting member is hingedly connected to the hinged portion, and the other end is fixedly connected to the wheel frame.

[0012] As a further technical solution, the guide groove is an open groove, and the top of the guide groove also has a strip-shaped limiting groove. The bottom of the connecting member abuts against the main frame below, and the top of the wheel frame has a limiting portion, which is located in the strip-shaped limiting groove. After the module body rotates, the wheel frame is driven to move through the connecting member.

[0013] As a further technical solution, it also includes: A driving machine is arranged on the top of the main frame, connected to the module body, and used for driving the module body to rotate.

[0014] The working principle and beneficial effects of the present invention are: In the present invention, many traditional hydraulic biogas digesters are currently a relatively simple enclosed space inside. Taking the small biogas digesters commonly seen in rural areas as an example, the fermentation chamber is a continuous space, the main purpose of which is to allow organic matter to fully ferment and produce biogas therein. The above scenario does not require personnel processing. However, for large-scale farms and some industrial enterprises that produce a large amount of organic wastewater such as food processing and brewing, the interior of their biogas digesters is a relatively complex space, which is usually divided into different areas for different treatments, which means that such biogas digesters require personnel processing and have an upper eaves structure of a certain shape inside for the installation of a stirring device to improve the efficiency of the entire biogas digester.

[0015] Based on this, in order to solve the problem of downwash airflow generated by the hovering of the UAV, the upper eaves structure is also used. In scenarios where gas collection and measurement are required in advance, the entire machine is placed on an eaves structure similar to the upper eaves, and then the main body of the UAV can be shut down, so that no downwash airflow will be generated near its fan part. Compared with the traditional need to keep the UAV hovering at a certain height, the data is more accurate.

[0016] Specifically, a solution is adopted in which wheels are installed under several groups of flight arms, so that the clamping area can be divided into a larger range, which is conducive to the clamping effect being applied to the gas collection device as a whole, stabilizing and fixing it, and also being able to adapt to a wider eaves. Furthermore, the wheels must be able to rotate under the action of some motors and other driving components, so that the gas collection device as a whole can be "moved" along the length direction of the eaves, smoothly changing the gas collection position, and there is no need to repeatedly start the drone body to avoid disturbances in the internal gas distribution. That is, the drone body basically does not need to be started in the biogas tank, thereby ensuring the accuracy of the measurement value.

[0017] The flight of the drone is controlled by a highly intelligent control system, and its movement in the biogas tank is more stable. The utilization of the eaves greatly reduces the probability of accidents.

[0018] For the eaves structure inside the biogas tank, the eaves are clamped in the clamping area formed by multiple wheels, so that the drone can move stably along the eaves. This design fully considers the structural characteristics of different biogas tanks and improves the unmanned practicality, versatility and adaptability of the device.

[0019] The height and angle of the gas collection module can be adjusted as needed to adapt to eaves of various shapes and positions, so as to collect gas at different levels and better understand the distribution of gas in the biogas digester.

[0020] The drone is equipped with advanced communication equipment to transmit the collected gas data back to the ground control center in real time. The transmitted data can be quickly analyzed through professional software, providing a scientific basis for the operation and management of the biogas digester. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present invention.

[0022] Figure 1 This is a schematic diagram of the structure of a gas collection device based on a drone in the present invention; Figure 2 For the present invention Figure 1 Enlarged view of part A in the middle; Figure 3 This is a working state diagram of a gas collection device based on a drone in the present invention; Figure 4 This is a schematic diagram of the internal structure of a gas collection device based on a drone in the present invention; Figure 5 For the present invention Figure 4 Enlarged view of middle C; Figure 6 For the present invention Figure 3 Enlarged view of middle part B; Figure 7 This is a diagram showing the matching state of the flight support arm and the connecting piece in the present invention; Figure 8 This is a schematic diagram of the flight arm structure in the present invention; Fig. 9 For the present invention Figure 7 Enlarged view of the middle D part; Fig.10 For the present invention Figure 8 Enlarged view of middle E part; Fig.11 This is a diagram showing the matching state of the connecting piece and the wheel body in the present invention.

[0023] In the figure: 1. eaves, 2. drone body, 201. flight arm, 202. main frame, 203. guide groove, 204. strip limit groove, 3. gas collection module, 301. module body, 302. collection port, 303. hinged part, 4. wheel body, 401. wheel frame, 402. clamping wheel, 403. limit part, 5. clamping area, 6. connecting part, 7. driving machine. DETAILED DESCRIPTION

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0025] In order to simplify the drawings, only the parts related to the invention are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0026] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0028] Reference Figure 1 to Figure 11 , which is the first embodiment of the present invention, proposes a gas collection device based on a drone, which is used to collect gas inside a biogas tank. The biogas tank has a canopy 1 inside, including: a drone body 2, the drone body 2 has a plurality of flight arms 201, and the plurality of flight arms 201 are arranged circumferentially; a gas collection module 3, the gas collection module 3 is arranged on the drone body 2; a wheel body 4, the wheel body 4 is arranged at the bottom of the flight arm 201, and a clamping area 5 is formed between the plurality of wheel bodies 4, and the plurality of wheel bodies 4 are used to clamp the canopy 1 in the clamping area 5 and drive the gas collection module 3 to move.

[0029] In this embodiment, many traditional hydraulic biogas digesters currently have a relatively simple enclosed space inside. Taking the small biogas digesters commonly seen in rural areas as an example, the fermentation chamber is a continuous space, the main purpose of which is to allow organic matter to fully ferment and produce biogas. The above scenario does not require personnel processing. However, for large-scale farms and some industrial enterprises such as food processing and brewing that produce a large amount of organic wastewater, the interior of their biogas digesters is a relatively complex space, which is usually divided into different areas for different treatments, which means that such biogas digesters require personnel processing and have an upper eaves structure of a certain shape inside for the installation of a stirring device to improve the efficiency of the entire biogas digester.

[0030] Based on this, in order to solve the problem of downwash airflow generated by the hovering of the UAV, the upper eaves structure is also used. In the scenario where gas collection and measurement are required in advance, the whole machine is supported on the eaves 1 structure similar to the upper eaves, and then the UAV body 2 can be shut down, and no downwash airflow will be generated near its fan part. Compared with the traditional need to keep the UAV hovering at a certain height, the data is more accurate.

[0031] Specifically, a solution is adopted in which wheels 4 are installed under several groups of flight arms 201, so that the clamping area 5 can be divided into a larger range, which is conducive to the clamping effect being applied to the gas collection device as a whole, stably fixing it, and also being able to adapt to a wider eaves 1. Furthermore, the wheels 4 must be able to rotate under the action of some motors and other driving components, so that the gas collection device as a whole can be "moved" along the length direction of the eaves 1, smoothly changing the gas collection position, and there is no need to repeatedly start the drone body 2, thereby avoiding the occurrence of disturbances in the internal gas distribution, that is, the drone body 2 basically does not need to be started in the biogas tank, thereby ensuring the accuracy of the measurement value.

[0032] The flight of the drone is controlled by a highly intelligent control system, and its movement in the biogas tank is more stable. The utilization of the eaves 1 greatly reduces the probability of accidents.

[0033] With respect to the structure of the eaves 1 inside the biogas tank, the eaves 1 is clamped in the clamping area 5 formed by multiple wheels 4, so that the drone can stably move along the eaves 1. This design fully considers the structural characteristics of different biogas tanks and improves the unmanned practicality, versatility and adaptability of the device.

[0034] The height and angle of the gas collection module 3 can be adjusted as needed to adapt to eaves 1 of various shapes and positions, so as to collect gas at different levels and better understand the distribution of gas in the biogas tank.

[0035] The drone is equipped with advanced communication equipment to transmit the collected gas data back to the ground control center in real time. The transmitted data can be quickly analyzed through professional software, providing a scientific basis for the operation and management of the biogas digester.

[0036] Furthermore, the drone body 2 includes: two main frames 202, the two main frames 202 are relatively stationary and arranged at intervals, the gas collection module 3 is arranged between the two main frames 202, a plurality of flight arms 201 are arranged along the circumference of the main frames 202, and the plurality of flight arms 201 are located between the two main frames 202, the height of the wheel body 4 is lower than the height of the main frame 202 below, and a clamping area 5 is formed between the plurality of wheel bodies 4 and the main frame 202 below, the bottom of the main frame 202 below is used to abut against the top of the eaves 1, and the wheel body 4 is used to abut against the side wall of the eaves 1.

[0037] In this embodiment, the two main frames 202 are relatively static and spaced apart, providing a stable installation base for the flight arm 201 and the gas collection module 3. This structural design makes the drone more stable during flight and operation, reducing gas collection errors caused by shaking. The intelligent structural design can ensure that each component works together to improve the reliability and accuracy of the overall system.

[0038] Accurate position of gas collection module 3: Setting the gas collection module 3 between the two main frames 202 can ensure that the collection module is in a relatively stable environment and is not excessively affected by external airflow and flight vibration. Such a layout makes the collected data more accurate and provides a reliable basis for subsequent data analysis. At the same time, The height of the wheel body 4 is lower than the height of the main frame 202 below, and the bottom of the main frame 202 abuts against the top of the eaves 1, and the wheel body 4 abuts against the side wall of the eaves 1. This design makes the movement of the drone inside the biogas tank more accurate. Through the intelligent control system, the rotation speed and direction of the wheel body 4 can be accurately adjusted to achieve smooth movement of the drone on the eaves 1, ensuring that the gas collection module 3 can accurately reach the preset sampling position.

[0039] The entire unmanned operation avoids the safety risks brought by manual entry into the biogas digester. There may be toxic and harmful gases, hypoxia and other dangerous conditions in the biogas digester, and the drone can complete the gas collection task autonomously without human presence, greatly improving the safety of the operation. At the same time, unmanned operation can achieve continuous operation without being restricted by time and physical strength, thus improving work efficiency.

[0040] Furthermore, the main frame 202 has a circular cross section, and the wheel body 4 includes: a wheel frame 401, which is arranged at the bottom of the flight support arm 201; a clamping wheel 402, which is rotatably arranged on the wheel frame 401, and the rotation axis of the clamping wheel 402 is parallel to the axis of the main frame 202.

[0041] In this embodiment, the circular main frame 202 has the following advantages: first, the circular cross section has better mechanical stability and bending resistance. When the UAV moves in the biogas tank, it may be affected by various external forces, such as airflow, collision, etc. The circular main frame 202 can better disperse these external forces, reduce the risk of structural damage, and ensure the stable operation of the UAV in a complex environment. Second, the circular main frame 202 is more convenient in the manufacturing and installation process. Its regular shape is easy to process and assemble, which reduces production costs and maintenance difficulties.

[0042] Function of the clamping wheel 402: The clamping wheel 402 is rotatably set on the wheel frame 401, and the rotation axis is parallel to the axis of the main frame 202. This design allows the drone to move more smoothly on the eaves 1 of the biogas tank. The clamping wheel 402 can fit the side wall of the eaves 1 tightly, providing stable support and traction. In actual applications, when the drone needs to move along the eaves 1 to collect gas, the rotation of the clamping wheel 402 can adapt to different moving speeds and direction changes, ensuring that the drone can smoothly reach each sampling point. At the same time, the design of the clamping wheel 402 can also reduce friction with the eaves 1, reduce wear and energy consumption, and extend the service life of the drone.

[0043] It can also prevent accidental falling off. The close fit between the clamping wheel 402 and the eaves 1 and the design of its rotating axis reduce potential risks in the complex environment inside the biogas digester, where any accidental falling off may cause equipment damage and data loss, and even affect the normal operation of the biogas digester.

[0044] Furthermore, there are four flight arms 201 , and a guide groove 203 is provided at the bottom of the flight arms 201 . The wheel frame 401 is movably arranged in the guide groove 203 . After the wheel frame 401 moves, the plurality of clamping wheels 402 move closer to or farther from each other.

[0045] In this embodiment, four flight arms 201 arranged along a matrix are selected, and the guide groove 203 at the bottom of the flight arm 201 is designed to allow the wheel frame 401 to move, thereby achieving a plurality of clamping wheels 402 approaching or moving away from each other. In practical applications, this feature enables the device to adapt to different sizes of biogas tank eaves 1. Regardless of whether the eaves 1 are wide or thin, the position of the clamping wheels 402 can be adjusted to ensure that the drone can stably perform gas collection work. For example, when facing eaves 1 of different diameters, the operator can remotely control the wheel frame 401 to move in the guide groove 203 and adjust the spacing of the clamping wheels 402 to achieve the best clamping effect.

[0046] The shape and size of the eaves 1 of the biogas tank may vary to a certain extent, and may even be irregular. The adjustable clamping wheel 402 design can better adapt to these complex structures. If the eaves 1 is partially convex or concave, by adjusting the position of the clamping wheel 402, it can be ensured that the drone can still be firmly fixed on the eaves 1 and will not lose stability due to structural changes, thereby reducing the cost and trouble of replacing equipment due to differences in the biogas tank structure.

[0047] The design of the adjustable clamping wheel 402 can provide a certain emergency handling capability. For example, if a flight arm 201 of the drone fails, causing the drone to lose balance, the operator can adjust the position of the clamping wheel 402 on other flight arms 201 to rebalance the center of gravity of the drone so that it can safely return to the ground or continue to complete the collection mission. This emergency handling capability can improve the reliability and safety of the device and reduce losses caused by unexpected situations.

[0048] Furthermore, the gas collection module 3 includes: a module body 301 , which is arranged between two main frames 202 , and has four collection ports 302 , which are arranged in a circle around the main frames 202 , and one collection port 302 is located between two adjacent flight arms 201 .

[0049] In this embodiment, the module body 301 has four collection ports 302 arranged in a circle around the main frame 202, and one collection port 302 is located between two adjacent flight arms 201. This design enables the gas collection module 3 to perform all-round gas collection in the biogas tank. Regardless of the position and posture of the drone, there is at least one collection port 302 that can contact the gas flow in different directions to ensure that the collected gas sample is representative. For example, in a biogas tank, the distribution of gas may be uneven. Through this multi-directional collection port 302 layout, the gas in each area can be effectively captured to avoid data deviation caused by a single collection point.

[0050] Moreover, the gas samples collected by the multiple collection ports 302 can be compared and verified with each other to improve the accuracy of data analysis. In practical applications, by comparing the gas composition, concentration and other data collected by the four collection ports 302, abnormal values ​​can be found and eliminated, thereby obtaining more reliable analysis results; the collected data is three-dimensionally modeled to analyze the spatial distribution of gas in the biogas digester, which is of great significance for understanding the operating status of the biogas digester and optimizing the design of the biogas digester.

[0051] In addition to being used for gas collection and analysis, this structure can also provide a basis for the expansion of other functions. For example, different types of sensors can be installed on the collection port 302 to achieve simultaneous monitoring of parameters such as temperature, humidity, and pressure in the biogas digester, or the collection port 302 can be connected to other equipment, such as a gas purification device or a gas storage device, to achieve the processing and utilization of the gas in the biogas digester. This multifunctional application expansion can improve the practicality and value of the device and meet the needs of different users.

[0052] Furthermore, the module body 301 is rotatably arranged between the two main frames 202, and the module body 301 is coaxially arranged with the main frame 202 axis. It also includes: a connecting member 6, one end of the connecting member 6 is connected to the module body 301, and the other end is connected to the wheel frame 401. After the module body 301 rotates, it drives the wheel frame 401 to move, and drives the collection port 302 to move closer to or away from the flight support arm 201.

[0053] In this embodiment, the module body 301 can rotate between the two main frames 202, and after the rotation, the wheel frame 401 can be driven to move, thereby making the collection port 302 close to or away from the flight arm 201. In the actual biogas digester environment, the gas distribution in different areas may be different. This adjustable collection port 302 position can better adapt to various complex situations and optimize the collection effect. If you encounter an area with strong airflow, the collection port 302 can be appropriately close to the flight arm 201 to reduce the interference of airflow on the collection; and in places with many obstacles, the collection port 302 can be moved away from the flight arm 201 to better collect the surrounding gas. In this way, the gas collection effect can be optimized and the collected data can be ensured to be more reliable.

[0054] The module body 301 is further connected to the wheel frame 401 through the connecting piece 6, so that the rotation of the module body 301 can drive the wheel frame 401 to move. Specifically, the module body 301 can be rotated and controlled by the remote control system, so as to realize remote adjustment of the position of the collection port 302 and quickly respond to changes. During the operation of the biogas digester, various emergencies may occur, such as gas leakage, temperature changes, etc. The rotatable module body 301 is designed to respond quickly to these changes and adjust the position of the collection port 302 in time to better monitor and respond to emergencies. For example, if the gas concentration in a certain area of ​​the biogas digester is detected to suddenly increase, the operator can quickly rotate the module body 301 and adjust the collection port 302 to the area for real-time monitoring, so as to provide timely and accurate data support for taking emergency measures.

[0055] At the same time, the fixing action of the wheel frame 401 is linked with the gas collection action. Only when the wheel frame 401 moves to abut against the eaves 1 and is fixed in position, can the gas collection module 3 be controlled to inhale, ensuring a smooth process.

[0056] Furthermore, the module body 301 has a hinged portion 303 , and the connecting member 6 is a connecting rod, one end of the connecting member 6 is hingedly connected to the hinged portion 303 , and the other end is fixedly connected to the wheel frame 401 .

[0057] In this embodiment, specifically, the connecting piece 6 is used to connect the module body 301 with the wheel frame 401, and the hinge part 303 is welded on the module body 301. One end of the connecting rod is penetrated by the hinge part 303 to realize the hinge connection, and the other end is fixedly welded to the wheel frame 401 to complete the connection.

[0058] Furthermore, the guide groove 203 is an open groove, and the top of the guide groove 203 also has a strip-shaped limiting groove 204. The bottom of the connecting member 6 abuts against the main frame 202 below. The top of the wheel frame 401 has a limiting portion 403, and the limiting portion 403 is located in the strip-shaped limiting groove 204. After the module body 301 rotates, the wheel frame 401 is driven to move through the connecting member 6.

[0059] Furthermore, it also includes: a driving machine 7, which is arranged on the top of the upper main frame 202 and connected to the module body 301, and is used to drive the module body 301 to rotate.

[0060] In this embodiment, the guide groove 203 and the limiting structure work together. The guide groove 203 is designed as an open groove, which is convenient for the wheel frame 401 to move therein and avoid its moving position. At the same time, the strip limiting groove 204 on the top cooperates with the limiting part 403 on the top of the wheel frame 401, so that it can adapt to a certain rotation angle when it moves to avoid being stuck. Its bottom abuts against the main frame 202 below, playing an important role in connecting the module body 301 and the wheel frame 401. On the one hand, it can convert the rotation of the module body 301 into the movement of the wheel frame 401, so as to adjust the position of the collection port 302. On the other hand, the abutment design of the connecting member 6 increases the stability of the structure and prevents loosening or shaking during rotation. In actual applications, the reliable connection of the connecting member 6 can ensure that the position adjustment of the collection port 302 is accurate and correct, thereby improving the accuracy and reliability of gas collection.

[0061] The driving machine 7 is arranged on the top of the main frame 202 above and is connected to the module body 301 to provide power for the rotation of the module body 301. This design enables the rotation of the module body 301 to be achieved by remotely controlling the driving machine 7, which makes the operation more convenient and efficient. In actual applications, the operator can remotely start the driving machine 7 through the control terminal on the ground to adjust the position of the module body 301 without entering the biogas tank for manual adjustment. For example, when it is necessary to collect gas from different areas in the biogas tank, the operator can quickly adjust the position of the collection port 302 through the driving machine 7 to improve work efficiency.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A gas collection device based on a drone, used for collecting gas inside a biogas tank, wherein the biogas tank has an eaves (1) inside, characterized in that: include: An unmanned aerial vehicle body (2), the unmanned aerial vehicle body (2) having a plurality of flight support arms (201), the plurality of flight support arms (201) being arranged in a circle; A gas collection module (3), the gas collection module (3) being arranged on the drone body (2); A wheel body (4), the wheel body (4) being arranged at the bottom of the flight support arm (201), a clamping area (5) being formed between a plurality of the wheel bodies (4), and a plurality of the wheel bodies (4) being used to clamp the eaves (1) within the clamping area (5) and drive the gas collection module (3) to move.

2. A gas collection device based on a drone according to claim 1, characterized in that: The drone body (2) comprises: Two main frames (202), the two main frames (202) are relatively stationary and spaced apart, the gas collection module (3) is arranged between the two main frames (202), a plurality of flight arms (201) are arranged along the circumference of the main frames (202), and the plurality of flight arms (201) are located between the two main frames (202), the height of the wheel body (4) is lower than the height of the main frame (202) below, a clamping area (5) is formed between the plurality of wheel bodies (4) and the main frame (202) below, the bottom of the main frame (202) below is used to abut against the top of the eaves (1), and the wheel body (4) is used to abut against the side wall of the eaves (1).

3. A gas collection device based on a drone according to claim 2, characterized in that: The main frame (202) has a circular cross section, and the wheel body (4) comprises: A wheel frame (401), wherein the wheel frame (401) is arranged at the bottom of the flight support arm (201); A clamping wheel (402), the clamping wheel (402) being rotatably arranged on the wheel frame (401), and the rotation axis of the clamping wheel (402) being parallel to the axis of the main frame (202).

4. A gas collection device based on a drone according to claim 3, characterized in that: There are four flight arms (201), and the bottom of the flight arms (201) is provided with a guide groove (203). The wheel frame (401) is movably arranged in the guide groove (203). After the wheel frame (401) moves, a plurality of the clamping wheels (402) move closer to or farther from each other.

5. The gas collection device based on a drone according to claim 4, characterized in that: The gas collection module (3) comprises: A module body (301), the module body (301) being arranged between the two main frames (202), the module body (301) having four collection ports (302), the four collection ports (302) being arranged along the circumference of the four main frames (202), and one collection port (302) being located between two adjacent flight arms (201).

6. A gas collection device based on a drone according to claim 5, characterized in that: The module body (301) is rotatably arranged between the two main frames (202), and the rotation axis of the module body (301) is coaxially arranged with the axis of the main frames (202), and further comprises: A connecting member (6), one end of the connecting member (6) being connected to the module body (301) and the other end being connected to the wheel frame (401), wherein the module body (301) rotates to drive the wheel frame (401) to move, and drives the collection port (302) to move closer to or farther from the flight support arm (201).

7. The gas collection device based on a drone according to claim 6, characterized in that: The module body (301) has a hinged portion (303), the connecting member (6) is a connecting rod, one end of the connecting member (6) is hingedly connected to the hinged portion (303), and the other end is fixedly connected to the wheel frame (401).

8. The gas collection device based on drone according to claim 7, characterized in that: The guide groove (203) is an open groove, and the top of the guide groove (203) also has a strip-shaped limiting groove (204). The bottom of the connecting member (6) abuts against the main frame (202) below. The top of the wheel frame (401) has a limiting portion (403), and the limiting portion (403) is located in the strip-shaped limiting groove (204). After the module body (301) rotates, the wheel frame (401) is driven to move through the connecting member (6).

9. The gas collection device based on drone according to claim 6, characterized in that: Also includes: A driving machine (7), the driving machine (7) being arranged on the top of the main frame (202) above, connected to the module body (301), and used for driving the module body (301) to rotate.

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