Carbon flux measuring device

Abstract

The utility model relates to the technical field of carbon flux measurement, and discloses a carbon flux measuring device which comprises a base, a support frame is arranged on the right side of the top of the base, and a reserved groove is formed in the right side in the base. The carbon flux measuring device is provided with a hydraulic oil cylinder, a limiting sliding rod and a limiting sliding groove, the hydraulic oil cylinder drives a mounting plate to descend, so that a plugging block can descend into an air storage cylinder, the plugging block can abut against the air storage cylinder to enable the air storage cylinder to descend when the plugging block descends to a proper height, and therefore the bottom end of the air storage cylinder can be embedded into soil; the sealing ring on the outer side wall of the blocking block can seal the top end in the air storage cylinder to prevent external air from entering the air storage cylinder, the air storage cylinder is sealed to prevent external air from influencing the accuracy of carbon flux measurement, the structure is simple, the use is convenient, and the problems that the height of the sealing ring is inconvenient to adjust according to requirements, the structure is relatively complex, and the measurement accuracy is high are solved. And the measurement accuracy is easily influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of carbon flux measurement, in particular to a carbon flux measurement device. Background Art

[0002] Carbon flux is one of the most basic concepts in carbon cycle research. Since soil carbon flux can well reflect soil respiration and its related parameters, soil carbon flux plays an important role in studying the carbon cycle of terrestrial ecosystems. Therefore, it is necessary to use a carbon flux measurement device to measure the soil carbon flux.

[0003] There are still some problems with common carbon flux measurement devices. For example, when using a carbon flux measurement device to measure the carbon flux of soil, the inside of the gas storage cylinder needs to be sealed, but it is inconvenient to adjust the height of the sealing ring according to needs, and the structure is relatively complex, which can easily affect the accuracy of the measurement.

[0004] Therefore, we proposed a carbon flux measurement device to improve the above problems. Utility Model Content

[0005] The utility model aims to provide a carbon flux measuring device to solve the problems in the above background technology that the height of the sealing ring is inconvenient to adjust according to the demand, the structure is relatively complex, and the measurement accuracy is easily affected.

[0006] To achieve the above object, the utility model provides the following technical solutions: a carbon flux measuring device, comprising a base, a support frame is arranged on the right side of the top of the base, a reserved groove is opened on the right side inside the base, a gas storage cylinder is arranged inside the reserved groove, and a sealing structure for facilitating lifting is arranged on the top of the gas storage cylinder;

[0007] The sealing structure includes a hydraulic cylinder, a connecting plate and a sealing ring. The hydraulic cylinder is installed at the top of the support frame, the bottom end of the hydraulic cylinder is fixedly connected to the mounting plate, the bottom end of the mounting plate is installed with a connecting plate, the bottom end of the connecting plate is fixedly connected to a blocking block, a sealing ring is provided at the top end of the outside of the blocking block, limiting slide grooves are provided on both sides of the inside of the mounting plate, and the top of the base is fixedly connected to a limiting slide rod.

[0008] Preferably, a measuring cavity is provided at the top of the base, an air pump is installed at the front end of the measuring cavity, the output end and the input end of the air pump are respectively fixedly connected with pipes, a hose is fixedly connected between the pipes, exhaust pipes are respectively provided at the bottom end of the left side of the measuring cavity and the right side of the air storage cylinder, sensors are installed inside the pipes, and the sensors are connected in series to the pipes one by one, the sensors include CO2 sensors, gas pressure sensors, gas flow sensors, temperature sensors and humidity sensors which are optional, and casters are installed at the four corners of the bottom end of the base.

[0009] Preferably, the mounting plate slides up and down on the outside of the limiting slide rod through a limiting slide groove, and the blocking block is embedded in the top end of the air storage cylinder.

[0010] Preferably, two sides of the pipeline respectively penetrate the inside of the measuring cavity and the air storage cylinder, and two groups of exhaust pipes are provided.

[0011] Preferably, connecting blocks are welded on the tops of both sides and both ends of the air storage cylinder, a spring is installed between the connecting block and the base, and a damper is installed inside the spring.

[0012] Preferably, the damper is installed between the base and the connecting block, and four groups of the damper and the spring are respectively provided.

[0013] Preferably, threaded grooves are provided at four corners inside the base, a screw rod is provided inside the threaded groove, a fixing rod is fixedly connected to the bottom end of the screw rod, and a turning handle is fixedly connected to the top end of the screw rod.

[0014] Preferably, an anti-slip sleeve is provided on the outside of the turning handle, and the threaded groove and the screw rod cooperate with each other.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the carbon flux measuring device not only realizes the convenience of adjusting the height of the sealing ring to seal the gas storage cylinder and the convenience of making the gas storage cylinder rebound, but also realizes the convenience of fixing the device;

[0016] (1) A hydraulic cylinder, a connecting plate, a sealing ring, a blocking block, a limiting slide rod and a limiting slide groove are provided, and the hydraulic cylinder is started, and the hydraulic cylinder drives the mounting plate to descend, so that the blocking block can be lowered into the inside of the gas storage cylinder. When the blocking block is lowered to a suitable height, it will press against the gas storage cylinder to make the gas storage cylinder descend, so that the bottom end of the gas storage cylinder can be embedded in the soil. The sealing ring on the outer wall of the blocking block can seal the top end of the gas storage cylinder to prevent external air from entering the inside of the gas storage cylinder. Sealing the gas storage cylinder can prevent external gas from affecting the accuracy of carbon flux measurement. The structure is simple and easy to use.

[0017] (2) By providing a connection block, a reserved groove and a damper, after the measurement is completed, the hydraulic cylinder drives the block to rise, and the spring drives the connection block and the air storage cylinder to rebound to the original position through its own elasticity. The damper inside the spring can limit the spring to prevent the damper from shaking too much and affecting the air storage cylinder. The reserved groove can also be limited by the air storage cylinder;

[0018] (3) By providing a screw rod, a threaded groove, a turning handle and a fixing rod, the device is moved to the measuring point by turning the turning handle, and the turning handle drives the screw rod to rotate inside the threaded groove. Since the screw rod and the threaded groove cooperate with each other, and the fixing rod is fixedly connected to the bottom end of the screw rod, the turning of the turning handle can cause the screw rod to drive the fixing rod to descend, so that the fixing rod can be embedded in the soil to limit and fix the base, thereby preventing the caster from accidentally driving the device to move. The protective cover outside the turning handle can protect the user's hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0020] Figure 2 This is a front view structural schematic diagram of the utility model;

[0021] Figure 3 It is a schematic diagram of an enlarged front cross-sectional structure of a screw rod of the utility model;

[0022] Figure 4 For the utility model Figure 1 Schematic diagram of the enlarged cross-section structure at point A in the middle.

[0023] In the figure: 1. base; 2. caster; 3. screw; 4. threaded groove; 5. turning handle; 6. exhaust pipe; 7. measuring chamber; 8. air pump; 9. hose; 10. support frame; 11. hydraulic cylinder; 12. connecting plate; 13. connecting block; 14. fixing rod; 15. air storage cylinder; 16. reserved groove; 17. damper; 18. spring; 19. sealing ring; 20. blocking block; 21. limiting slide rod; 22. limiting slide groove; 23. mounting plate. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1: Please refer to Figure 1-4 A carbon flux measuring device comprises a base 1, a support frame 10 is arranged on the right side of the top of the base 1, a reserved groove 16 is opened on the right side inside the base 1, an air storage cylinder 15 is arranged inside the reserved groove 16, and a sealing structure for facilitating lifting is arranged on the top of the air storage cylinder 15;

[0026] The sealing structure includes a hydraulic cylinder 11, a connecting plate 12 and a sealing ring 19. The hydraulic cylinder 11 is installed at the top of the support frame 10. The bottom end of the hydraulic cylinder 11 is fixedly connected to a mounting plate 23. The bottom end of the mounting plate 23 is installed with a connecting plate 12. The bottom end of the connecting plate 12 is fixedly connected to a block 20. The top end of the block 20 is provided with a sealing ring 19. The two sides of the mounting plate 23 are provided with limited sliding grooves 22. The top end of the base 1 is fixedly connected to a limited sliding rod 21.

[0027] A measuring chamber 7 is provided at the top of the base 1, and an air pump 8 is installed at the front end of the measuring chamber 7. The output end and the input end of the air pump 8 are respectively fixedly connected with pipelines, and a hose 9 is fixedly connected between the pipelines. The bottom end on the left side of the measuring chamber 7 and the right side of the gas storage cylinder 15 are respectively provided with exhaust pipes 6. Sensors are installed inside the pipeline, and the sensors are connected in series to the pipeline one by one. The sensors include CO2 sensors, gas pressure sensors, gas flow sensors, temperature sensors and humidity sensors that are optional as needed. Casters 2 are installed at the four corners of the bottom end of the base 1. The mounting plate 23 slides up and down on the outside of the limiting slide rod 21 through the limiting slide groove 22. The block 20 is embedded in the top of the inside of the gas storage cylinder 15. The two sides of the pipeline respectively penetrate the inside of the measuring chamber 7 and the gas storage cylinder 15. Two groups of exhaust pipes 6 are provided;

[0028] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, the hydraulic cylinder 11 is started, and the hydraulic cylinder 11 drives the mounting plate 23 to descend, so that the blocking block 20 can be lowered into the inside of the gas storage cylinder 15. When the blocking block 20 is lowered to a suitable height, it will press against the gas storage cylinder 15 to make the gas storage cylinder 15 descend, so that the bottom end of the gas storage cylinder 15 can be embedded in the soil. The sealing ring 19 on the outer wall of the blocking block 20 can seal the top end of the gas storage cylinder 15 to prevent external air from entering the inside of the gas storage cylinder 15. Sealing the gas storage cylinder 15 can prevent external gas from affecting the accuracy of carbon flux measurement. The structure is simple and easy to use.

[0029] Embodiment 2: Connecting blocks 13 are welded on the top of both sides and both ends of the air storage cylinder 15, a spring 18 is installed between the connecting block 13 and the base 1, a damper 17 is installed inside the spring 18, the damper 17 is installed between the base 1 and the connecting block 13, and four groups of dampers 17 and springs 18 are respectively provided;

[0030] Specifically, Figure 1 and Figure 2As shown, after the measurement is completed, the hydraulic cylinder 11 drives the blocking block 20 to rise, and the spring 18 will drive the connecting block 13 and the air storage cylinder 15 to rebound to their original positions through its own elasticity. The damper 17 inside the spring 18 can limit the spring 18 to prevent the damper 17 from shaking too much and affecting the air storage cylinder 15. The reserved groove 16 can also be limited by the air storage cylinder 15.

[0031] Embodiment 3: The four corners inside the base 1 are provided with threaded grooves 4, the threaded grooves 4 are provided with screw rods 3, the bottom end of the screw rods 3 is fixedly connected with a fixing rod 14, the top end of the screw rods 3 is fixedly connected with a turning handle 5, the outside of the turning handle 5 is provided with an anti-slip sleeve, and the threaded grooves 4 and the screw rods 3 cooperate with each other;

[0032] Specifically, Figure 1 , Figure 2 and Figure 3 As shown, when the device is moved to the measuring point, the handle 5 is turned, and the handle 5 drives the screw rod 3 to rotate inside the thread groove 4. Since the screw rod 3 and the thread groove 4 cooperate with each other, and the fixing rod 14 is fixedly connected to the bottom end of the screw rod 3, the rotation of the handle 5 can make the screw rod 3 drive the fixing rod 14 to descend, so that the fixing rod 14 can be embedded in the soil to limit and fix the base 1, preventing the caster 2 from accidentally driving the device to move, and the protective cover outside the handle 5 can protect the user's hands.

[0033] Working principle: When the utility model is used, the device is pushed to the measuring point, and then the turning handle 5 is turned, and the turning handle 5 drives the screw rod 3 to rotate inside the thread groove 4, so that the screw rod 3 drives the fixing rod 14 to descend, so that the fixing rod 14 can be embedded in the soil to limit and fix the base 1 to prevent the caster 2 from accidentally driving the device to move, and then the hydraulic cylinder 11 is started, and the hydraulic cylinder 11 drives the mounting plate 23 to descend, so that the blocking block 20 can be lowered into the inside of the gas storage cylinder 15. When the blocking block 20 descends to a suitable height, it will resist the gas storage cylinder 15 to make the gas storage cylinder 15 descend, so that the bottom end of the gas storage cylinder 15 can be embedded in the soil, and the blocking block 2 The sealing ring 19 on the outer wall can seal the top of the air storage cylinder 15. After sealing, the air pump 8 is started. The air pump 8 extracts air from the inside of the air storage cylinder 15 through the pipeline and the hose 9. According to the flow rate, the first sampling is completed after the specified time. The CO2 content and other figures measured by the sensor are displayed on the display screen at the bottom of the front end of the measuring chamber 7. After measuring the measuring point, the hydraulic cylinder 11 drives the block 20 to rise, and the spring 18 drives the connecting block 13 and the air storage cylinder 15 to rebound to the original position through its own elasticity. The damper 17 inside the spring 18 can limit the spring 18 to prevent the damper 17 from shaking too much and affecting the air storage cylinder 15.

[0034] It is obvious 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 present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A carbon flux measuring device, comprising a base (1), characterized in that: A support frame (10) is arranged on the right side of the top of the base (1), a reserved groove (16) is opened on the right side inside the base (1), an air storage cylinder (15) is arranged inside the reserved groove (16), and a sealing structure for facilitating lifting is arranged at the top of the air storage cylinder (15); The sealing structure comprises a hydraulic cylinder (11), a connecting plate (12) and a sealing ring (19); the hydraulic cylinder (11) is installed at the top end of the support frame (10); the bottom end of the hydraulic cylinder (11) is fixedly connected to a mounting plate (23); the bottom end of the mounting plate (23) is installed with a connecting plate (12); the bottom end of the connecting plate (12) is fixedly connected to a blocking block (20); a sealing ring (19) is provided at the top end of the outside of the blocking block (20); limiting sliding grooves (22) are provided on both sides of the inside of the mounting plate (23); and the top end of the base (1) is fixedly connected to a limiting sliding rod (21).

2. A carbon flux measuring device according to claim 1, characterized in that: A measuring chamber (7) is arranged at the top of the base (1), an air pump (8) is installed at the front end of the measuring chamber (7), the output end and the input end of the air pump (8) are respectively fixedly connected with pipelines, a hose (9) is fixedly connected between the pipelines, an exhaust pipe (6) is respectively arranged at the bottom end of the left side of the measuring chamber (7) and the right side of the air storage cylinder (15), sensors are installed inside the pipeline, and the sensors are serially connected to the pipeline one by one, and the sensors include a CO2 sensor, a gas pressure sensor, a gas flow sensor, a temperature sensor and a humidity sensor which are selected as needed, and casters (2) are installed at the four corners of the bottom end of the base (1).

3. A carbon flux measuring device according to claim 1, characterized in that: The mounting plate (23) slides up and down outside the limiting slide rod (21) through the limiting slide groove (22), and the blocking block (20) is embedded in the top end of the air storage cylinder (15).

4. A carbon flux measuring device according to claim 2, characterized in that: Both sides of the pipeline respectively penetrate the inside of the measuring chamber (7) and the air storage cylinder (15), and two groups of exhaust pipes (6) are provided.

5. A carbon flux measuring device according to claim 1, characterized in that: Connecting blocks (13) are welded on the tops of both sides and both ends of the gas storage cylinder (15), a spring (18) is installed between the connecting block (13) and the base (1), and a damper (17) is installed inside the spring (18).

6. A carbon flux measuring device according to claim 5, characterized in that: The damper (17) is installed between the base (1) and the connecting block (13), and four groups of the damper (17) and the spring (18) are respectively provided.

7. A carbon flux measuring device according to claim 1, characterized in that: The base (1) has four internal corners with threaded grooves (4), the threaded grooves (4) are provided with screw rods (3), the bottom end of the screw rod (3) is fixedly connected to a fixing rod (14), and the top end of the screw rod (3) is fixedly connected to a turning handle (5).

8. A carbon flux measuring device according to claim 7, characterized in that: The outside of the turning handle (5) is provided with an anti-slip sleeve, and the threaded groove (4) and the screw rod (3) cooperate with each other.

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