An automatic greenhouse gas monitoring device

Abstract

The application discloses a kind of greenhouse gas automatic monitoring devices, belong to greenhouse gas automatic monitoring technical field, the top of the hollow seat is provided with vertical column, the top of the vertical column is provided with fixed top disc, the inner wall of the vertical column is provided with screw rod, the top of the vertical column is provided with height adjusting mechanism, the inner wall of the hollow seat is provided with flow promoting device, the top of the vertical column is provided with damp-proof mechanism, the screw rod is rotatably connected at the bottom of fixed top disc, the top of the screw rod is provided with motor, and the screw rod is fixedly connected at the output end of motor, the present application is rotated by motor driving screw rod when running, screw rod moves in the process of rotation by the helical groove of circumferential surface driving the limit in the inner wall of vertical column, so that the device can be according to the height of the growth height of plant and monitor the humidity of greenhouse gas of different height.

Description

Technical Field

[0001] This invention belongs to the field of automatic greenhouse gas monitoring technology, specifically relating to an automatic greenhouse gas monitoring device. Background Technology

[0002] As global warming intensifies, accurate monitoring of greenhouse gases has become crucial for addressing climate change. Traditional monitoring methods rely heavily on manual sampling and laboratory analysis, which suffer from low efficiency and inability to perform continuous measurements. Therefore, designing an automatic greenhouse gas monitoring device to achieve continuous, long-term, and accurate monitoring is of great significance.

[0003] Patent CN216411217U discloses an automatic greenhouse gas monitoring device. The main technical solution of this patent is as follows: it includes a greenhouse gas monitoring instrument body with a supporting structure. The supporting structure includes: a placement plate, a fixed base, two bearing seats, two threaded rods, a motor, two sliders, two sliding grooves, several ball bearings, two cross-shaped moving blocks, two moving parts, and two extension parts. The placement plate is installed on the lower wall of the greenhouse gas monitoring instrument body. This patent relates to the field of greenhouse gas monitoring equipment technology. The supporting structure below the greenhouse gas monitoring instrument allows for adjustment of the distance between the drive wheels on both sides of the supporting structure according to the distance between the non-crop growing areas on both sides of the seedling roots in the farmland, preventing the device from crushing crops during movement. The supporting structure drives the greenhouse gas monitoring instrument to move in the farmland, enabling the detection of greenhouse gases at multiple locations and having a wide range of applications. However, the above device also has the following problems: Since plants are growing, using a fixed-height detection method can easily lead to incomplete greenhouse gas detection, thus affecting the detection results. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic greenhouse gas monitoring device to solve the problem of difficulty in detecting greenhouse gases at different altitudes.

[0005] To achieve the above objectives, the present invention provides an automatic greenhouse gas monitoring device, comprising a hollow base, a vertical connecting column at the top of the hollow base, a fixed top plate at the top of the vertical connecting column, a spiral rod on the inner wall of the vertical connecting column, a height adjustment mechanism at the top of the vertical connecting column, a flow-promoting device on the inner wall of the hollow base, a moisture-proof mechanism at the top of the vertical connecting column, the spiral rod being rotatably connected to the bottom of the fixed top plate, and a motor being mounted at the top of the spiral rod, with the spiral rod fixedly connected to the output end of the motor. The height adjustment mechanism includes a positioning ring, a horizontal rod, a device housing, and a gas detection element. The positioning ring is movably connected to the outer circumferential surface of the screw rod. A movable key is provided on the inner wall of the positioning ring, and the movable key is located in the helical groove on the circumferential surface of the screw rod. The horizontal rod is fixedly connected to the outer wall of the positioning ring. The device housing is fixedly connected to the outer wall of the horizontal rod. The gas detection element is disposed on the inner wall of the device housing.

[0006] According to another advantageous design of the invention, the height adjustment mechanism further includes a top cap, a sealing plate, and a horizontal connecting bracket. The top cap is slidably connected to the top inner wall of the device housing, and the top cap is connected to the device housing by a spring. The sealing plate is slidably connected to the top inner wall of the device housing, and the horizontal connecting bracket is fixedly connected to the outer circumferential surface of the top cap. The gas detection element is fixedly connected to the top cap, and the horizontal connecting bracket is fixedly connected to the sealing plate.

[0007] According to another advantageous design of the present invention, the height adjustment mechanism further includes a ventilated perforated frame, a top cap, and a close-fitting cover. The ventilated perforated frame is fixedly connected to the bottom of the gas detection element, the top cap is slidably connected to the inner wall of the fixed top plate, and the close-fitting cover is fixedly connected to the outer wall of the fixed top plate. The top cap is located on the movement trajectory of the top cap. When the device is in operation, the motor drives the screw rod to rotate. During the rotation, the screw rod moves the ring under the limit of the inner wall of the vertical column through the spiral groove on the circumferential surface. This allows the device to monitor the greenhouse gas humidity at different heights according to the growth height of the plant.

[0008] According to another advantageous design of the invention, the flow-promoting device includes a bottom connecting rod, a fixed horizontal ring, and a bottom fixed ring. The bottom connecting rod is fixed at the bottom of the ring, the fixed horizontal ring is fixedly connected to the bottom of the bottom connecting rod, and the bottom fixed ring is fixedly connected to the inner wall of the hollow seat. The spiral rod is rotatably connected to the bottom fixed ring.

[0009] According to another advantageous design of the present invention, the flow-inducing device further includes a sliding guide rod, a pressing frame, a rotating block, a drive button, and a flow-driving fan. The sliding guide rod is slidably connected to the inner wall of the bottom fixed ring, and the top of the sliding guide rod and the bottom fixed ring are connected by a spring, with the spring sleeved on the outer circumferential surface of the sliding guide rod. The pressing frame is slidably connected to the inner wall of the vertical connecting column, and the pressing frame is fixedly connected to the sliding guide rod. The rotating block is rotatably connected to the top inner wall of the hollow base. The drive button is disposed on the top outer wall of the hollow base, and the drive button is electrically connected to the rotating block. The drive button is located on the movement trajectory of the pressing frame, and the flow-driving fan is fixedly connected to the bottom of the rotating block.

[0010] According to another advantageous design of the present invention, the flow-promoting device further includes a horizontal sliding bottom rod, a conical push block, a trapezoidal block, and an intermittent sealing frame. The horizontal sliding bottom rod is slidably connected to the inner wall of the hollow seat, the conical push block is fixedly connected to the outer wall of the horizontal sliding bottom rod, the intermittent sealing frame is slidably connected to the outer wall of the device housing, the device housing and the intermittent sealing frame are connected by a spring, and the trapezoidal block is fixedly connected to the outer wall of the intermittent sealing frame, the trapezoidal block being located on the movement trajectory of the conical push block. When the drive button is pressed by the presser, it releases an electrical signal to the rotating block at the bottom. When the rotating block receives the electrical signal, it drives the airflow fan at the bottom to rotate. The rotation of the airflow fan will disturb the slow-moving air above the ground and promote the airflow at the bottom of the field, thereby improving the detection accuracy of the gas detection element for the air at the bottom of the field.

[0011] According to another advantageous design of the invention, the moisture-proof mechanism includes an electric telescopic rod, which is fixedly connected to the top of the fixed plate, and a sensing device is provided inside the electric telescopic rod.

[0012] According to another advantageous design of the invention, the moisture-proof mechanism further includes a top horizontal connecting plate, which is fixedly connected to the top of the electric telescopic rod, and the top connecting cap is fixedly connected to the top horizontal connecting plate.

[0013] According to another advantageous design of the present invention, the moisture-proof mechanism further includes a connecting frame and an absorbent cotton ring, the connecting frame being fixedly connected to the outer wall of the device housing, the absorbent cotton ring being fixedly connected to the outer wall of the connecting frame, and the inner wall of the absorbent cotton ring being in contact with the gas detection element. During the movement of the gas detection element, its outer wall will come into contact with the absorbent cotton ring. At this time, the absorbent cotton ring will wipe away the small amount of water vapor that has entered the device through the gaps on the surface of the gas detection element, preventing the water vapor on the surface of the gas detection element from affecting the subsequent detection of external gases by the gas detection element.

[0014] The beneficial effects of this invention are: 1. With the cooperation of the spiral rod, the positioning ring, and the vertical connecting column, this device is suitable for outdoor farmland. When installed in farmland, the device can detect greenhouse gas humidity, thereby enabling real-time monitoring of greenhouse gases around the plants during growth. During operation, the device uses a motor to drive the spiral rod to rotate. As the spiral rod rotates, the positioning ring moves within the limit of the inner wall of the vertical connecting column through the spiral groove on the circumferential surface. This allows the device to monitor greenhouse gas humidity at different heights according to the growth of the plants, resulting in more comprehensive detection.

[0015] 2. In this invention, with the cooperation of the fixed cross ring, the rotating block, and the air-driving fan, the fixed cross ring of the pressing frame moves downward and contacts the sliding guide rod, squeezing the sliding guide rod. After being squeezed, the sliding guide rod drives the pressing frame to move downward. The downward movement of the pressing frame contacts the drive button. After being squeezed by the pressing frame, the drive button releases an electrical signal to the rotating block at the bottom. When the rotating block receives the electrical signal, it drives the air-driving fan at the bottom to rotate. The rotation of the air-driving fan will disturb the slow-moving air above the ground and promote the airflow at the bottom of the field, thereby improving the detection accuracy of the gas detection element for the air at the bottom of the field.

[0016] 3. In this invention, with the cooperation of the screw rod, top cap, sealing plate, and electric telescopic rod, the screw rod rotates to move the gas detection element to the top of the device. At the same time, when the sensing device inside the electric telescopic rod detects excessive humidity in the air, it releases an electrical signal to the electric telescopic rod, which then extends. After the electric telescopic rod extends, it drives the top horizontal connecting plate to move upward, which in turn drives the top cap to move upward. At this point, the top cap will not contact the top connecting plate after it reaches the top of the device, and the gas detection element will not move downward. Instead, it will be completely sealed inside the device by the sealing cover and the sealing plate, preventing damage to the gas detection element caused by spray water in the air when irrigating plants in farmland, thus affecting its subsequent normal use. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall device structure of the present invention; Figure 2 This is a schematic diagram of the screw rod structure of the present invention; Figure 3 This is a schematic diagram of the closely spaced cover structure of the present invention; Figure 4 This is a schematic diagram of the flow-promoting device structure of the present invention; Figure 5 This is a schematic diagram of the device housing structure of the present invention; Figure 6 This is a schematic diagram of the electric telescopic pole structure of the present invention; Figure 7 This is the invention Figure 6 A magnified view of the structure at point A in the middle.

[0018] The markings in the diagram are as follows: 1. Hollowed-out base; 2. Vertical connecting column; 3. Fixed top plate; 4. Spiral rod; 5. Height adjustment mechanism; 501. Positioning ring; 502. Horizontal rod; 503. Device housing; 504. Gas detection element; 505. Top cap; 506. Sealing plate; 507. Horizontal connecting frame; 508. Ventilated hollowed-out frame; 509. Top connecting cap; 510. Sealing cover; 6. Flow-promoting device; 601. Bottom connecting rod 602. Fixed horizontal ring; 603. Bottom fixed ring; 604. Sliding guide rod; 605. Pressing frame; 606. Rotating block; 607. Drive button; 608. Drive fan; 609. Horizontal sliding bottom rod; 610. Conical push block; 611. Trapezoidal block; 612. Intermittent sealing frame; 7. Moisture-proof mechanism; 701. Electric telescopic rod; 702. Top horizontal connecting plate; 703. Connecting frame; 704. Water-absorbing cotton ring. Detailed Implementation

[0019] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0020] like Figures 1-7 As shown, one embodiment of the present invention is an automatic greenhouse gas monitoring device, including a hollow base 1, a vertical connecting column 2 at the top of the hollow base 1, a fixed top plate 3 at the top of the vertical connecting column 2, a spiral rod 4 on the inner wall of the vertical connecting column 2, a height adjustment mechanism 5 at the top of the vertical connecting column 2, a flow promoting device 6 on the inner wall of the hollow base 1, a moisture-proof mechanism 7 at the top of the vertical connecting column 2, the spiral rod 4 being rotatably connected to the bottom of the fixed top plate 3, a motor at the top of the spiral rod 4, and the spiral rod 4 being fixedly connected to the output end of the motor. In use, a support plate is provided at the bottom of the device to assist in its support and prevent the device from tipping over. The height adjustment mechanism 5 includes a ring 501, a horizontal rod 502, a device housing 503, and a gas detection element 504. The ring 501 is movably connected to the outer circumferential surface of the screw rod 4. A movable key is provided on the inner wall of the ring 501, and the movable key is located in the spiral groove on the circumferential surface of the screw rod 4. The horizontal rod 502 is fixedly connected to the outer wall of the ring 501. The device housing 503 is fixedly connected to the outer wall of the horizontal rod 502. The gas detection element 504 is disposed on the inner wall of the device housing 503.

[0021] The height adjustment mechanism 5 also includes a top cap 505, a sealing plate 506, and a horizontal connecting bracket 507. The top cap 505 is slidably connected to the top inner wall of the device housing 503, and the top cap 505 and the device housing 503 are connected by a spring. The sealing plate 506 is slidably connected to the top inner wall of the device housing 503, and the horizontal connecting bracket 507 is fixedly connected to the outer circumferential surface of the top cap 505. The gas detection element 504 is fixedly connected to the top cap 505, and the horizontal connecting bracket 507 is fixedly connected to the sealing plate 506.

[0022] The height adjustment mechanism 5 also includes a breathable hollow frame 508, a top cap 509, and a close-fitting cover 510. The breathable hollow frame 508 is fixedly connected to the bottom of the gas detection element 504, the top cap 509 is slidably connected to the inner wall of the fixed top plate 3, and the close-fitting cover 510 is fixedly connected to the outer wall of the fixed top plate 3. The top cap 509 is located on the movement trajectory of the top cap 505. During rotation, the spiral rod 4 drives the ring 501 to move under the limitation of the inner wall of the vertical column 2 through the spiral groove on the circumferential surface, so that the device can monitor the greenhouse gas humidity at different heights according to the growth height of the plant.

[0023] The flow-promoting device 6 includes a bottom connecting rod 601, a horizontal fixing ring 602, and a bottom fixing ring 603. The bottom connecting rod 601 is fixed at the bottom of the ring 501, the horizontal fixing ring 602 is fixedly connected to the bottom of the bottom connecting rod 601, and the bottom fixing ring 603 is fixedly connected to the inner wall of the hollow seat 1. The spiral rod 4 is rotatably connected to the bottom fixing ring 603.

[0024] The flow-promoting device 6 also includes a sliding guide rod 604, a pressing frame 605, a rotating block 606, a drive button 607, and a flow-driving fan 608. The sliding guide rod 604 is slidably connected to the inner wall of the bottom fixing ring 603. The top of the sliding guide rod 604 and the bottom fixing ring 603 are connected by a spring, and the spring is sleeved on the outer circumferential surface of the sliding guide rod 604. The pressing frame 605 is slidably connected to the inner wall of the vertical connecting column 2. The pressing frame 605 is fixedly connected to the sliding guide rod 604. The rotating block 606 is rotatably connected to the top inner wall of the hollow base 1. The drive button 607 is located on the top outer wall of the hollow base 1. The drive button 607 is electrically connected to the rotating block 606. The drive button 607 is located on the movement trajectory of the pressing frame 605. The flow-driving fan 608 is fixedly connected to the bottom of the rotating block 606.

[0025] The flow-promoting device 6 also includes a horizontal sliding bottom rod 609, a cone pusher block 610, a trapezoidal block 611, and an intermittent sealing frame 612. The horizontal sliding bottom rod 609 is slidably connected to the inner wall of the hollow seat 1. The cone pusher block 610 is fixedly connected to the outer wall of the horizontal sliding bottom rod 609. The intermittent sealing frame 612 is slidably connected to the outer wall of the device housing 503. The device housing 503 and the intermittent sealing frame 612 are connected by a spring. The trapezoidal block 611 is fixedly connected to the outer wall of the intermittent sealing frame 612. The trapezoidal block 611 is located on the movement trajectory of the cone pusher block 610. When the sliding guide rod 604 is squeezed, it drives the pressing frame 605 to move downward. The pressing frame 605 moves downward and contacts the drive button 607. When the drive button 607 is squeezed by the pressing frame 605, it will release an electrical signal to the rotating block 606 at the bottom. When the rotating block 606 receives the electrical signal, it will drive the flow fan 608 at the bottom to rotate. The rotation of the flow fan 608 will disturb the slow-moving air above the ground and promote the flow of air at the bottom of the field, thereby improving the detection accuracy of the gas detection element 504 in detecting the air at the bottom of the field.

[0026] Working Principle: This device is suitable for outdoor farmland. Installed in the field, it detects greenhouse gas humidity, allowing for real-time monitoring of greenhouse gases around the plants during growth. During operation, a motor drives a spiral rod 4 to rotate. As the spiral rod 4 rotates, the spiral groove on its circumferential surface causes the ring 501 to move within the limit of the vertical column 2. This allows the device to monitor greenhouse gas humidity at different heights based on plant growth. When the plant is tall, the ring 501 moves to the top of the device to detect the gases at that height. When the ring 501 reaches the top, the top cap 505 is also moved to the top. Upon reaching the top, the top cap 505 contacts the top connecting cap 509, and is then compressed by the top connecting cap 509. The spring between the device housing 503 and the top cap 505 moves downward, causing the gas detection element 504 to move downward. The downward movement of the gas detection element 504 causes the ventilated perforated frame 508 to move downward. Simultaneously, the downward movement of the gas detection element 504 causes the horizontal connecting frame 507 to move downward. The downward movement of the horizontal connecting frame 507 causes the sealing plate 506 to block the ventilation opening on the surface of the device housing 503, preventing sunlight from penetrating into the device. When the gas detection element 504 moves to the bottom of the device housing 503, the ventilated perforated frame 508 also moves to the bottom of the device. Subsequently, the gas enters the device through the gap in the outer wall of the ventilated perforated frame 508 and is then absorbed and monitored by the gas detection element 504. This step allows the device housing 503 to block sunlight from the top of the gas detection element 504, preventing the gas detection element 504 from being directly exposed to sunlight when it is at a high position, thereby indirectly affecting the gas detection effect of the gas detection element 504.

[0027] When the plant is in the seedling stage, the rotation of the screw rod 4 causes the ring 501 to move downwards. During this downward movement, the bottom connecting rod 601 moves downwards, causing the fixed cross ring 602 to move downwards. The fixed cross ring 602 then contacts the sliding guide rod 604, compressing it. This compression causes the pressing frame 605 to move downwards, contacting the drive button 607. The drive button 607, compressed by the pressing frame 605, releases an electrical signal to the bottom rotating block 606. Upon receiving this signal, the rotating block 606 rotates the bottom airflow fan 608. This rotation disrupts the slow-moving air above the ground, promoting airflow at the bottom of the field, thereby improving... The gas detection element 504 has high accuracy in detecting air at the bottom of the field. When the gas detection element 504 is at the bottom of the field, the rotating block 606 rotates, causing the cam on the surface to move. During the movement of the cam, it presses the horizontal sliding rod 609, causing the cone pusher block 610 to reciprocate under the reset of the spring. During the reciprocating movement, the cone pusher block 610 presses the inclined surface of the trapezoidal block 611, thereby causing the trapezoidal block 611 to move downward under the limit of the intermittent sealing frame 612. Then, it is reset by the spring between the device shell 503 and the intermittent sealing frame 612, so that the intermittent sealing frame 612 can intermittently block the air vents on the surface of the device shell 503, preventing insects at the bottom of the farmland from entering the device through the air vents on the surface of the device shell 503, thereby causing damage to the internal structure of the device.

[0028] like Figures 1-7 As shown, based on the above embodiment, the moisture-proof mechanism 7 includes an electric telescopic rod 701, which is fixedly connected to the top of the fixed plate 3, and a sensing device is provided inside the electric telescopic rod 701.

[0029] The moisture-proof mechanism 7 also includes a top horizontal connecting plate 702, which is fixedly connected to the top of the electric telescopic rod 701, and the top connecting cap 509 is fixedly connected to the top horizontal connecting plate 702.

[0030] The moisture-proof mechanism 7 also includes a connecting frame 703 and a water-absorbing cotton ring 704. The connecting frame 703 is fixedly connected to the outer wall of the device housing 503, and the water-absorbing cotton ring 704 is fixedly connected to the outer wall of the connecting frame 703. The inner wall of the water-absorbing cotton ring 704 is in contact with the gas detection element 504. The top horizontal connecting plate 702 moves upward, causing the top connecting cap 509 to move upward. At this time, after the top cap 505 moves to the top of the device, it will not contact the top connecting cap 509. The gas detection element 504 will not move downward, but will be completely sealed inside the device by the sealing cover 510 and the sealing plate 506. This prevents the spray water in the air from damaging the gas detection element 504 when the plants are irrigated in the farmland, thus affecting its normal use.

[0031] Working principle: When large-scale sprinkler irrigation is carried out in farmland, the screw rod 4 rotates to move the gas detection element 504 to the top of the device. At the same time, when the sensor inside the electric telescopic rod 701 detects excessive humidity in the air, the sensor will release an electrical signal to the electric telescopic rod 701, which will then extend. After the electric telescopic rod 701 extends, it will drive the top horizontal connecting plate 702 to move upward. The upward movement of the top horizontal connecting plate 702 will drive the top connecting cap 509 to move upward. At this time, after the top cap 505 moves to the top of the device, it will not contact the top connecting cap 509. The gas detection element 504 will not move downward, but will be completely sealed by the sealing cover 510 and the sealing plate 506. Internally, to prevent damage to the gas detection element 504 caused by spray water in the air during irrigation of the plants, thus affecting subsequent normal use, after the spraying work is completed, the electric telescopic rod 701 resets, causing the top cap 509 to also reset. At this time, the top cap 505 will be squeezed by the top cap 509 again, causing the gas detection element 504 to move downward. During the movement, the outer wall of the gas detection element 504 will come into contact with the absorbent cotton ring 704. At this time, the absorbent cotton ring 704 will wipe away the small amount of water vapor that has entered the device through the gaps on the surface of the gas detection element 504, preventing the water vapor on the surface of the gas detection element 504 from affecting the subsequent detection of external gases by the gas detection element 504.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic greenhouse gas monitoring device, characterized in that, Includes a hollow base (1), a vertical connecting column (2) is provided on the top of the hollow base (1), a fixed top plate (3) is provided on the top of the vertical connecting column (2), a spiral rod (4) is provided on the inner wall of the vertical connecting column (2), a height adjustment mechanism (5) is provided on the top of the vertical connecting column (2), a flow-promoting device (6) is provided on the inner wall of the hollow base (1), a moisture-proof mechanism (7) is provided on the top of the vertical connecting column (2), the spiral rod (4) is rotatably connected to the bottom of the fixed top plate (3), a motor is provided on the top of the spiral rod (4), and the spiral rod (4) is fixedly connected to the output end of the motor; The height adjustment mechanism (5) includes a ring (501), a horizontal rod (502), a device housing (503), and a gas detection element (504). The ring (501) is movably connected to the outer circumferential surface of the screw rod (4). The inner wall of the ring (501) is provided with a movable key, which is located in the spiral groove on the circumferential surface of the screw rod (4). The horizontal rod (502) is fixedly connected to the outer wall of the ring (501). The device housing (503) is fixedly connected to the outer wall of the horizontal rod (502). The gas detection element (504) is disposed on the inner wall of the device housing (503).

2. The automatic greenhouse gas monitoring device according to claim 1, characterized in that, The height adjustment mechanism (5) further includes a top cap (505), a sealing plate (506), and a horizontal connecting frame (507). The top cap (505) is slidably connected to the top inner wall of the device housing (503). The top cap (505) and the device housing (503) are connected by a spring. The sealing plate (506) is slidably connected to the top inner wall of the device housing (503). The horizontal connecting frame (507) is fixedly connected to the outer circumferential surface of the top cap (505). The gas detection element (504) is fixedly connected to the top cap (505). The horizontal connecting frame (507) is fixedly connected to the sealing plate (506).

3. The automatic greenhouse gas monitoring device according to claim 2, characterized in that, The height adjustment mechanism (5) also includes a breathable hollow frame (508), a top cap (509), and a close-fitting cover (510). The breathable hollow frame (508) is fixedly connected to the bottom of the gas detection element (504). The top cap (509) is slidably connected to the inner wall of the fixed top plate (3). The close-fitting cover (510) is fixedly connected to the outer wall of the fixed top plate (3). The top cap (509) is located on the movement trajectory of the top cap (505).

4. The automatic greenhouse gas monitoring device according to claim 3, characterized in that, The flow-promoting device (6) includes a bottom connecting rod (601), a horizontal fixing ring (602), and a bottom fixing ring (603). The bottom connecting rod (601) is fixed at the bottom of the ring (501), the horizontal fixing ring (602) is fixedly connected to the bottom of the bottom connecting rod (601), and the bottom fixing ring (603) is fixedly connected to the inner wall of the hollow seat (1). The spiral rod (4) is rotatably connected to the bottom fixing ring (603).

5. The automatic greenhouse gas monitoring device according to claim 4, characterized in that, The flow-promoting device (6) further includes a sliding guide rod (604), a pressing frame (605), a rotating block (606), a drive button (607), and a flow-promoting fan (608). The sliding guide rod (604) is slidably connected to the inner wall of the bottom fixing ring (603). The top of the sliding guide rod (604) and the bottom fixing ring (603) are connected by a spring, and the spring is sleeved on the outer circumferential surface of the sliding guide rod (604). The pressing frame (605) is slidably connected to the inner wall of the vertical connecting column (2). 05) Fixedly connected to the guide rod (604), the rotating block (606) is rotatably connected to the top inner wall of the hollow seat (1), the drive button (607) is set on the top outer wall of the hollow seat (1), the drive button (607) and the rotating block (606) are electrically connected, the drive button (607) is located on the movement trajectory of the pressing frame (605), the flow fan (608) is fixedly connected to the bottom of the rotating block (606), and the surface of the rotating block (606) is provided with a cam.

6. The automatic greenhouse gas monitoring device according to claim 5, characterized in that, The flow-promoting device (6) also includes a horizontal sliding bottom rod (609), a cone pusher (610), a trapezoidal block (611), and an intermittent sealing frame (612). The horizontal sliding bottom rod (609) is slidably connected to the inner wall of the hollow seat (1). The cone pusher (610) is fixedly connected to the outer wall of the horizontal sliding bottom rod (609). The intermittent sealing frame (612) is slidably connected to the outer wall of the device shell (503). The device shell (503) and the intermittent sealing frame (612) are connected by a spring. The trapezoidal block (611) is fixedly connected to the outer wall of the intermittent sealing frame (612). The trapezoidal block (611) is located on the movement trajectory of the cone pusher (610).

7. The automatic greenhouse gas monitoring device according to claim 6, characterized in that, The moisture-proof mechanism (7) includes an electric telescopic rod (701), which is fixedly connected to the top of the fixed plate (3). The electric telescopic rod (701) is equipped with a sensing device inside.

8. The automatic greenhouse gas monitoring device according to claim 7, characterized in that, The moisture-proof mechanism (7) also includes a top horizontal connecting plate (702), which is fixedly connected to the top of the electric telescopic rod (701), and the top connecting cap (509) is fixedly connected to the top horizontal connecting plate (702).

9. The automatic greenhouse gas monitoring device according to claim 8, characterized in that, The moisture-proof mechanism (7) also includes a connecting frame (703) and a water-absorbing cotton ring (704). The connecting frame (703) is fixedly connected to the outer wall of the device housing (503), and the water-absorbing cotton ring (704) is fixedly connected to the outer wall of the connecting frame (703). The inner wall of the water-absorbing cotton ring (704) is in contact with the gas detection element (504).

Images