A portable enclosure for collecting and storing samples of greenhouse gases in the field

Abstract

This invention discloses a portable storage and collection device for monitoring greenhouse gases in the field, relating to the technical field of field greenhouse gas collection devices. A water collection trough is provided at the top of the sealed water tank, and protrusions are fixedly installed at the center of the inclined inner surface of the sealed water tank. This portable storage and collection device for monitoring greenhouse gases in the field utilizes the cooperation between the sealed water tank and the protrusions. When sealing with the top frame mechanism, the bottom of the inner wall of the top frame mechanism contacts the protrusions, creating a gap between the bottom of the top frame mechanism and the sealed water tank. Water is then injected into the sealed water tank until it covers the bottom of the top frame mechanism, achieving a seal. Simultaneously, while waiting for the detection time, water droplets condensing from the vapor on the inner wall of the top frame mechanism slide down and are guided into the sealed water tank through a groove at the bottom of the zigzag plate, replenishing the water in the sealed water tank and ensuring a good seal during detection.

Description

Technical Field

[0001] This invention relates to the field of greenhouse gas collection devices, specifically a portable storage and collection device for monitoring greenhouse gases in the field. Background Technology

[0002] Portable greenhouse gas collection and storage devices for monitoring greenhouse gases in the field are a type of equipment that is adapted to complex field environments and can easily complete in-situ collection and storage of greenhouse gases, facilitating subsequent laboratory analysis or real-time detection. When collecting greenhouse gas emission samples in wheat and corn crop plot experiments, box-type devices are usually used to randomly select several areas within the detection area, seal and cover the wheat or corn plants in the area, and collect the gases during the growth of wheat or corn. A convenient device for field greenhouse gas collection, disclosed in CN219319871U, includes a base, an elevated housing I, an elevated housing II, and a main housing. The tops of the base, elevated housing I, and elevated housing II are all equipped with water trough structures. The base, elevated housing I, elevated housing II, and main housing are stacked and connected via the water trough structures. Water injection hoppers are correspondingly connected to the outer walls of the base, elevated housing I, and elevated housing II, and these hoppers are connected to the water troughs. A second fan is installed on the inner wall of elevated housing I. The main housing has a top cover, and a first fan is installed on the bottom wall of the top cover. The first and second fans are connected to power cords. This device solves the practical problems of current greenhouse gas collection, such as inconvenience in carrying, uneven air distribution inside the container, inconvenience in field power supply, and complex manufacturing process. It can bring great convenience to future greenhouse gas monitoring and other gas collection work. However, during the detection process, because it is sealed by a water tank, the farmland has plenty of sunlight. Due to the transfer of solar heat, the water in the tank evaporates, causing the seal to break and resulting in the mixing of internal and external air, which affects the accuracy of gas collection. Summary of the Invention

[0003] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a portable storage and collection device for monitoring greenhouse gases in the field, comprising: The base has a top frame mechanism fixedly installed on its top, and a top cover mechanism fixedly installed on the top of the top frame mechanism. The top frame mechanism is sealed to the base, and the top frame mechanism is sealed to the top cover mechanism. The base is fixed by snap-fitting between the top frame mechanism, the top cover mechanism and the base. The outer sides of the top frame mechanism and the top cover mechanism are coated with a heat-insulating and reflective coating. The three parts can be separated during transportation to improve portability during field transportation. The base includes a top plate, with a sealing water tank fixedly installed at the bottom. The top of the sealing water tank has a water collection trough, and both sides of the trough are inclined surfaces sloping downwards towards the center. A protrusion is fixedly installed at the center of each inclined surface inside the sealing water tank. Through the cooperation of the sealing water tank and the protrusions, during the sealing process with the top frame mechanism, the bottom of the inner wall of the top frame mechanism contacts the protrusions, creating a gap between the bottom of the top frame mechanism and the sealing water tank. Water is then injected into the sealing water tank until it covers the bottom of the top frame mechanism, achieving a seal. Simultaneously, during the waiting period for testing, water droplets condensing from the inner wall of the top frame mechanism and sliding down are guided into the sealing water tank through a groove at the bottom of the zigzag plate, replenishing the water in the sealing water tank and ensuring... During the testing, the sealing effect is achieved by ensuring that the outer top of the sealing water tank is lower than the inner top. A fixed cover is fixedly installed on the top of the top plate, located inside the sealing water tank. A zigzag plate is fixedly installed on the top of the outer side of the fixed cover, with the center of the zigzag plate bending downwards. The contact between the outer side of the zigzag plate and the inner wall of the top frame mechanism, along with the fixing cover, secures the zigzag plate. During the fixing process, the top frame mechanism is supported, limiting its sway when there is strong wind in the farmland. This prevents the top frame mechanism from separating from the base due to wind, allowing the gas to be collected inside to mix with the outside air. Furthermore, the bottom of the zigzag plate is evenly provided with through grooves, which are located directly above the water collection tank of the sealing water tank.

[0004] Preferably, a connecting plate is fixedly installed at the bottom of the top plate, a bottom frame plate is fixedly installed at the bottom of the connecting plate, and an insertion frame is fixedly installed at the bottom of the bottom frame plate. The bottom of the insertion frame is provided with a blade, and the outer side of the insertion frame is a sloping surface that slopes inward from top to bottom. The inner wall of the insertion frame is located sloping downward from the outer side of the inner wall of the top plate. By using the blade at the bottom of the insertion frame and the sloping surface on the outer side of the insertion frame, pressure is applied during the insertion process to insert the blade into the soil. At the same time, the sloping surface on the outer side of the insertion frame, which slopes inward from top to bottom, compresses the soil on the outer side during the insertion process to prevent the soil on the inner side from being compressed, which would affect the growth of wheat or corn plants. Furthermore, the outer side of the insertion frame is uniformly provided with circular grooves.

[0005] Preferably, the top frame mechanism includes a support frame, a collection tube is fixedly installed on one side of the support frame, and a humidity detector and a temperature detector are fixedly installed on the other side of the support frame. The detection ends of the humidity detector and the temperature detector are both extended into the inside of the support frame. During installation, the probes of the humidity detector and the temperature detector are extended into the inside of the support frame, while ensuring that the detection probes do not contact the plants inside. The bottom of the support frame is located in the water collection tank of the sealed water tank, and the edge of the bottom of the inner wall of the support frame contacts the outer side of the protrusion. There is a gap between the bottom of the support frame and the water collection tank of the sealed water tank.

[0006] Preferably, a connecting frame is fixedly installed on the top of the inner wall of the support frame, and an inner cover frame is fixedly installed on the top of the connecting frame. The top of the inner cover frame is lower than the top of the support frame. There is a gap between the outer side of the inner cover frame and the inner wall of the support frame. An inner inclined frame is fixedly installed on the outer side of the inner cover frame. The end of the inner inclined frame away from the inner cover frame is inclined downward. By using the contact between the inner inclined frame and the inner wall of the top cover, the support and restriction of the top cover is increased during the waiting time for detection, preventing the top cover from swaying under the wind. At the same time, when water droplets slide down, the grooves and inclination on the outer side of the inner inclined frame guide the water droplets, preventing them from dripping into the soil and affecting the soil moisture, which would lead to detection errors. The inner inclined frame has grooves evenly distributed on the side away from the inner cover frame.

[0007] Preferably, the top cover mechanism includes a top cover cover, an outer cover frame is fixedly installed on the outer side of the top cover cover, the bottom of the outer cover frame is higher than the bottom of the top cover cover, and a sealing frame gasket is fixedly installed on the bottom of the outer cover frame. The bottom of the sealing frame gasket is in contact with the top of the support frame, and the bottom of the top cover cover is in contact with the top of the connecting frame. The inner wall of the top cover cover is in contact with the outer side of the inner inclined frame. A balance tube is fixedly installed on the top of the top cover cover. The balance tube is a silicone flexible tube and can be sealed by bending. A motor is fixedly installed on the top of the top cover cover. The output end of the motor passes through the top cover cover and extends into its interior. An agitator impeller is fixedly installed on the output end of the motor.

[0008] This invention provides a portable data collection and storage device for monitoring greenhouse gases in the field. It offers the following advantages: (i) The portable storage and collection device for monitoring greenhouse gases in the field uses a sealing water tank in conjunction with a protrusion. When the device is installed with the top frame mechanism for sealing, the bottom of the inner wall of the top frame mechanism contacts the protrusion, creating a gap between the bottom of the top frame mechanism and the sealing water tank. Water is then injected into the sealing water tank until it covers the bottom of the top frame mechanism, thus achieving a seal. Meanwhile, while waiting for the detection time, water droplets that slide off the condensed vapor on the inner wall of the top frame mechanism are guided into the sealing water tank through the groove at the bottom of the zigzag plate, replenishing the water in the sealing water tank and ensuring the sealing effect during detection.

[0009] (ii) The portable storage and collection device for monitoring greenhouse gases in the field uses the contact between the outer side of the zigzag plate and the inner wall of the top frame mechanism, along with the fixing cover to fix the zigzag plate. During the fixing process, the top frame mechanism is supported, limiting the swaying of the top frame mechanism when the wind is strong in the farmland, and preventing the top frame mechanism from separating from the base due to the wind, so that the gas to be collected inside can mix with the outside air.

[0010] (III) The portable greenhouse gas collection device for monitoring in the field uses the blade at the bottom of the insertion frame and the inclined surface on the outside of the insertion frame to apply pressure during the insertion process, so that the blade is inserted into the soil. At the same time, the inclined surface on the outside of the insertion frame, which slopes inward from top to bottom, compresses the soil on the outside during the insertion process to prevent the soil on the inside from being compressed, which would affect the growth of wheat or corn plants.

[0011] (iv) The portable storage and collection device for monitoring greenhouse gases in the field increases the support and restriction of the top cover by the contact between the inner inclined frame and the inner wall of the top cover during the waiting time for detection, so as to prevent the top cover from shaking under the wind. At the same time, when water droplets slide down, the groove and inclination on the outside of the inner inclined frame guide the water droplets to avoid dripping into the soil, affecting the soil moisture and causing detection errors. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a sectional view of the top cover mechanism of the present invention; Figure 3 This is a sectional side view of the top cover mechanism of the present invention; Figure 4 This is a schematic diagram of the top frame mechanism of the present invention; Figure 5 This is a sectional view of the top frame mechanism of the present invention; Figure 6 This is a schematic diagram of the structure of the base of the present invention; Figure 7 This is a partial structural diagram of the base of the present invention; Figure 8 This is a partial sectional view of the base of the present invention.

[0013] In the diagram: 1. Base; 2. Top frame mechanism; 3. Top cover mechanism; 11. Bottom frame plate; 12. Insertion frame; 13. Bending plate; 14. Fixing cover; 15. Connecting plate; 16. Top plate; 17. Sealing water tank; 18. Protrusion; 21. Support frame; 22. Collection tube; 23. Inner cover frame; 24. Inner inclined frame; 25. Connecting frame; 26. Humidity detector; 27. Temperature detector; 31. Top cover; 32. Motor; 33. Agitator impeller; 34. Balance tube; 35. Outer cover frame; 36. Sealing frame gasket. Detailed Implementation

[0014] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0015] For the first embodiment, please refer to... Figure 1 and Figures 6 to 8 The present invention provides a technical solution: A portable data collection and storage device for monitoring greenhouse gases in the field includes: The base 1 has a top frame mechanism 2 fixedly installed on its top, and a top cover mechanism 3 fixedly installed on its top. The top frame mechanism 2 is sealed to the base 1, and the top cover mechanism 3 is sealed to the top. The outer sides of the top frame mechanism 2 and the top cover mechanism 3 are coated with a heat-insulating and reflective coating. The base 1 includes a top plate 16, with a sealing water trough 17 fixedly installed at the bottom of the top plate 16. The top of the sealing water trough 17 has a water collection trough, and both sides of the water collection trough are inclined surfaces sloping from top to bottom towards the center. A protrusion 18 is fixedly installed at the center of each inclined surface on the inner side of the sealing water trough 17. The outer side of the top of the sealing water trough 17 is lower than the inner side. A fixing cover 14 is fixedly installed on the top of the top plate 16. During installation, the insertion frame 12 is inserted into the soil. Pressure is applied to the top using the blade at the bottom of the insertion frame 12 to insert the blade into the soil. When inserting the top frame mechanism 2, the bottom of the top frame mechanism 2 is placed inside the sealing water trough 17. Water is then injected into the sealing water trough 17 to seal the connection point. The sealing layer separates the internal and external air. The fixed cover 14 is located inside the sealed water tank 17, and the top of the outer side of the fixed cover 14 is fixedly installed with a zigzag plate 13. When the top frame mechanism 2 is placed in, the zigzag plate 13 fixedly installed on the outer side of the fixed cover 14 contacts the inner wall of the top frame mechanism 2, supporting the inner wall of the top frame mechanism 2. As the water droplets dripping from the inner wall of the top frame mechanism 2 slide downwards, the water droplets slide to the top of the zigzag plate 13. Utilizing the bend and groove of the zigzag plate 13, and with the groove located directly above the water accumulation tank of the sealed water tank 17, the water droplets drip into the water accumulation tank of the sealed water tank 17. The center of the zigzag plate 13 bends downwards, and the bottom of the zigzag plate 13 is evenly provided with grooves, which are located directly above the water accumulation tank of the sealed water tank 17.

[0016] A connecting plate 15 is fixedly installed at the bottom of the top plate 16, a bottom frame plate 11 is fixedly installed at the bottom of the connecting plate 15, an insertion frame 12 is fixedly installed at the bottom of the bottom frame plate 11, a blade is provided at the bottom of the insertion frame 12, the outer side of the insertion frame 12 is a slope that slopes inward from top to bottom, the inner wall of the insertion frame 12 is located at the outer side of the inner wall of the top plate 16 at an angle downward, and the outer side of the insertion frame 12 is evenly provided with round grooves.

[0017] The second embodiment is based on the first embodiment; please refer to [link / reference]. Figures 4 to 5 As shown, the top frame mechanism 2 includes a support frame 21. A collection tube 22 is fixedly installed on one side of the support frame 21, and a humidity detector 26 and a temperature detector 27 are fixedly installed on the other side of the support frame 21. The support frame 21 is used to wrap the corn or wheat plant to be detected. During installation, the detection probes of the humidity detector 26 and the temperature detector 27 are inserted into the interior of the support frame 21, while ensuring that the detection probes of the humidity detector 26 and the temperature detector 27 do not contact the soil or the plant inside. The bottom of the support frame 21 is located in the water collection tank of the sealed water tank 17, and the edge of the bottom of the inner wall of the support frame 21 contacts the outer side of the protrusion 18. There is a gap between the bottom of the support frame 21 and the water collection tank of the sealed water tank 17.

[0018] A connecting frame 25 is fixedly installed on the top of the inner wall of the support frame 21. An inner cover frame 23 is fixedly installed on the top of the connecting frame 25. The top of the inner cover frame 23 is lower than the top of the support frame 21. There is a gap between the outer side of the inner cover frame 23 and the inner wall of the support frame 21. When the top cover mechanism 3 is placed, the connecting frame 25 supports the top cover mechanism 3. After placement, the outer side of the inner inclined frame 24 contacts the inner wall of the top cover mechanism 3. After the detection time is reached, the air inside is collected through the collection tube 22. An inner inclined frame 24 is fixedly installed on the outer side of the inner cover frame 23. The end of the inner inclined frame 24 away from the inner cover frame 23 is inclined downward, and the side of the inner inclined frame 24 away from the inner cover frame 23 is evenly provided with notches.

[0019] The third embodiment is based on embodiments one and two; please refer to [link / reference]. Figures 2 to 3As shown, the top cover mechanism 3 includes a top cover 31. An outer cover frame 35 is fixedly installed on the outer side of the top cover 31. The bottom of the outer cover frame 35 is higher than the bottom of the top cover 31, and a sealing frame gasket 36 is fixedly installed on the bottom of the outer cover frame 35. The bottom of the sealing frame gasket 36 is in contact with the top of the support frame 21, and the bottom of the top cover 31 is in contact with the top of the connecting frame 25. The inner wall of the top cover 31 is in contact with the outer side of the inner inclined frame 24. During installation, the outer side of the top cover 31 is in contact with the inner wall of the support frame 21, and the bottom of the sealing frame gasket 36 is in contact with the top of the support frame 21. This ensures that the inner wall of the support frame 21 fits tightly against the interior of the inner inclined frame 24. During the collection process, when the height of the plants inside is relatively high, the air inside is agitated by the motor 32 before collection to ensure that the air components are mixed evenly before collection. A balance tube 34 is fixedly installed on the top of the top cover 31. The balance tube 34 is a silicone flexible tube and can be sealed by bending. A motor 32 is fixedly installed on the top of the top cover 31. The output end of the motor 32 passes through the top cover 31 and extends into its interior. An agitator impeller 33 is fixedly installed on the output end of the motor 32.

[0020] In use, after determining the detection location and completing the planting, insert the base 1 into the corn or wheat field to be tested. Keep the plant stationary throughout the entire growing season. Before the initial collection, ensure the base has been installed for more than 24 hours. Then, place the top frame mechanism 2 on top of the base 1, frame the corn or wheat plant to be tested inside the top frame mechanism 2, and seal the connection between the top frame mechanism 2 and the base 1. Then, cover the top of the top frame mechanism 2 with the top cover mechanism 3, and seal the connection between the top cover mechanism 3 and the top frame mechanism 2, covering the corn or wheat plant inside. After the collection time arrives, collect the air inside to provide a gas detection sample.

[0021] In the base 1, during installation, the insertion frame 12 is inserted into the soil. The blade at the bottom of the insertion frame 12 is used to apply pressure to the top, causing the blade to penetrate into the soil. When the top frame mechanism 2 is placed, the bottom of the top frame mechanism 2 is placed inside the sealing water tank 17. Water is then injected into the sealing water tank 17 to seal the connection point and separate the inside and outside air. At the same time, when the top frame mechanism 2 is placed, the flexural plate 13 fixedly installed on the outside of the fixing cover 14 contacts the inner wall of the top frame mechanism 2, supporting the inner wall of the top frame mechanism 2. As the water droplets dripping from the inner wall of the top frame mechanism 2 slide downwards, the water droplets slide to the top of the flexural plate 13. The flexural plate 13 and the through groove, with the through groove located directly above the water accumulation tank of the sealing water tank 17, cause the water droplets to drip into the water accumulation tank of the sealing water tank 17.

[0022] In the top frame mechanism 2, the corn or wheat plant to be tested is wrapped around the outside of the support frame 21. During installation, the detection probes of the humidity detector 26 and the temperature detector 27 are inserted into the support frame 21 to ensure that the detection probes of the humidity detector 26 and the temperature detector 27 do not come into contact with the soil or the plant inside. When placing the top cover mechanism 3, the top cover mechanism 3 is supported by the connecting frame 25. After placement, the outer side of the inner inclined frame 24 contacts the inner wall of the top cover mechanism 3. After the detection time is reached, the air inside is collected through the collection tube 22.

[0023] In the top cover mechanism 3, during installation, the outer side of the top cover 31 is made to fit against the inner wall of the support frame 21, and the bottom of the sealing frame gasket 36 is made to fit against the top of the support frame 21. During installation, the inner wall of the support frame 21 is made to fit tightly against the inside of the inner inclined frame 24. During the collection process, when the height of the plants inside is high, the air inside is stirred by the motor 32 before collection, so that the air components inside are mixed evenly before collection.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A portable data collection and storage device for monitoring greenhouse gases in the field, characterized in that, include: The base (1) has a top frame mechanism (2) fixedly installed on its top, and a top cover mechanism (3) fixedly installed on its top. The top frame mechanism (2) is sealed to the base (1), and the top frame mechanism (2) is sealed to the top cover mechanism (3). The outer sides of the top frame mechanism (2) and the top cover mechanism (3) are coated with a heat-insulating and reflective coating. The base (1) includes a top plate (16), a sealing water tank (17) is fixedly installed at the bottom of the top plate (16), a water accumulation tank is opened at the top of the sealing water tank (17), and the two sides of the water accumulation tank are inclined surfaces that slope from top to bottom towards the center. A protrusion (18) is fixedly installed at the center of the inclined surface inside the sealing water tank (17). The outer side of the top of the sealing water tank (17) is lower than the inner side. A fixing cover (14) is fixedly installed at the top of the top plate (16). The fixing cover (14) is located inside the sealing water tank (17), and a zigzag plate (13) is fixedly installed at the top of the outer side of the fixing cover (14). The center of the zigzag plate (13) bends downward, and a through groove is evenly opened at the bottom of the zigzag plate (13). The through groove is located directly above the water accumulation tank of the sealing water tank (17).

2. The portable storage and collection device for monitoring greenhouse gases in the field according to claim 1, characterized in that: A connecting plate (15) is fixedly installed at the bottom of the top plate (16), a bottom frame plate (11) is fixedly installed at the bottom of the connecting plate (15), an insertion frame (12) is fixedly installed at the bottom of the bottom frame plate (11), and a blade is provided at the bottom of the insertion frame (12).

3. The portable storage and collection device for monitoring greenhouse gases in the field according to claim 2, characterized in that: The outer side of the insertion frame (12) is an inclined surface that slopes inward from top to bottom. The inner wall of the insertion frame (12) is located obliquely downward from the outer side of the inner wall of the top plate (16), and the outer side of the insertion frame (12) is uniformly provided with through grooves.

4. The portable storage and collection device for monitoring greenhouse gases in the field according to claim 3, characterized in that: The top frame mechanism (2) includes a support frame (21). A collection tube (22) is fixedly installed on one side of the support frame (21), and a humidity detector (26) and a temperature detector (27) are fixedly installed on the other side of the support frame (21). The detection ends of the humidity detector (26) and the temperature detector (27) are both inserted into the interior of the support frame (21).

5. A portable storage and collection device for monitoring greenhouse gases in the field according to claim 4, characterized in that: The bottom of the support frame (21) is located inside the water accumulation tank of the sealing water tank (17), and the edge of the bottom of the inner wall of the support frame (21) contacts the outside of the protrusion (18). There is a gap between the bottom of the support frame (21) and the water accumulation tank of the sealing water tank (17).

6. A portable storage and collection device for monitoring greenhouse gases in the field according to claim 5, characterized in that: A connecting frame (25) is fixedly installed on the top of the inner wall of the support frame (21), and an inner cover frame (23) is fixedly installed on the top of the connecting frame (25). The top of the inner cover frame (23) is lower than the top of the support frame (21).

7. A portable storage and collection device for monitoring greenhouse gases in the field according to claim 6, characterized in that: There is a gap between the outer side of the inner cover frame (23) and the inner wall of the support frame (21), and an inner inclined frame (24) is fixedly installed on the outer side of the inner cover frame (23). The end of the inner inclined frame (24) away from the inner cover frame (23) is inclined downward, and a notch is evenly provided on the side of the inner inclined frame (24) away from the inner cover frame (23).

8. A portable storage and collection device for monitoring greenhouse gases in the field according to claim 7, characterized in that: The top cover mechanism (3) includes a top cover cover (31), an outer cover frame (35) is fixedly installed on the outside of the top cover cover (31), the bottom of the outer cover frame (35) is higher than the bottom of the top cover cover (31), and a sealing frame gasket (36) is fixedly installed on the bottom of the outer cover frame (35).

9. A portable storage and collection device for monitoring greenhouse gases in the field according to claim 8, characterized in that: The bottom of the sealing frame gasket (36) is in contact with the top of the support frame (21), and the bottom of the top cover (31) is in contact with the top of the connecting frame (25), and the inner wall of the top cover (31) is in contact with the outer side of the inner inclined frame (24).

10. A portable storage and collection device for monitoring greenhouse gases in the field according to claim 9, characterized in that: A balance tube (34) is fixedly installed on the top of the top cover (31). The balance tube (34) is a silicone hose and can be sealed by bending. A motor (32) is fixedly installed on the top of the top cover (31). The output end of the motor (32) passes through the top cover (31) and extends into its interior. An agitator impeller (33) is fixedly installed on the output end of the motor (32).

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