CN219122159U - Self-adjusting small open-circuit greenhouse gas measuring device - Google Patents
Self-adjusting small open-circuit greenhouse gas measuring device Download PDFInfo
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- CN219122159U CN219122159U CN202223335372.9U CN202223335372U CN219122159U CN 219122159 U CN219122159 U CN 219122159U CN 202223335372 U CN202223335372 U CN 202223335372U CN 219122159 U CN219122159 U CN 219122159U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to the technical field of gas monitoring, in particular to a self-adjusting small open-circuit greenhouse gas measuring device, which comprises: the device comprises a connecting piece, a shell and a leveling mechanism, wherein the connecting piece is connected with gas measuring equipment; the shell is connected with the connecting piece so as to support the gas measuring equipment; the leveling mechanism is arranged inside the shell to adjust the angle of the connecting piece, so that the gas measurement equipment is in a horizontal state.
Description
Technical Field
The utility model relates to the technical field of gas monitoring, in particular to a self-adjusting small open-circuit greenhouse gas measuring device.
Background
There are many methods for observing the flux of greenhouse gas emissions, and the whirl-related method is widely used in the flux monitoring field as a method for directly observing the gas exchange flux without parameterization assumption. The method obtains the gas flux by calculating the covariance of the vertical wind speed fluctuation and the fluctuation of related physical parameters (such as the gas concentration of CO2, H2O, CH4 and the like), so that the basic equipment of the measuring system mainly comprises an ultrasonic anemometer for measuring three-dimensional wind speed data and a gas analyzer for measuring the gas concentration change.
When the three-dimensional ultrasonic anemometer works, an ultrasonic transmitter and an ultrasonic receiver are required to transmit and receive ultrasonic waves, the transmission speed of the ultrasonic waves is influenced by airflow motion in the air, so that hundred Hz three-dimensional wind speed data are obtained, and the data obtained by measurement are based on the vertical wind speed fluctuation under a natural coordinate system.
In order to solve the problem that the error of a natural coordinate system is overlarge due to the inclination of an instrument in the installation process, when the device is used outdoors, a user is usually required to level the device on the ground by utilizing tools such as a shovel and a level meter, so that monitoring equipment is installed, the method for leveling the ground solves the problem that the error of the natural coordinate system is overlarge to a certain extent, but in the actual measurement process, in order to improve the accuracy of measurement data, data acquisition is required to be carried out at a plurality of positions, and the ground leveling is required to be carried out once at each position, so that a great amount of time is consumed, and the physical consumption of the user is further increased.
Disclosure of Invention
The utility model aims to solve the defects in the prior art, and provides a self-adjusting small open-circuit greenhouse gas measuring device.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a self-regulating small open-circuit greenhouse gas measurement device is designed, comprising: the device comprises a connecting piece, a shell and a leveling mechanism, wherein the connecting piece is connected with gas measuring equipment; the shell is connected with the connecting piece so as to support the gas measuring equipment; the leveling mechanism is arranged in the shell to adjust the angle of the connecting piece, so that the gas measuring equipment is in a horizontal state.
Preferably, the leveling mechanism comprises a left leveling structure, a right leveling structure, a front leveling structure and a rear leveling structure, wherein:
the left and right leveling structure includes: the rotary shaft is rotatably arranged in the shell, the ball body is fixedly connected on the rotary shaft, and the axis of the rotary shaft passes through the center of the ball body; the middle part of the sphere is grooved, and the first end face gear is fixedly connected in the groove; the first balancing weight is fixedly connected to the bottom of the sphere, so that the gravity center of the sphere is positioned at the bottommost end of the first balancing weight; the short shaft is rotatably arranged in the shell, the axis of the short shaft passes through the sphere center of the sphere and is perpendicular to the axis of the rotating shaft, the short shaft is fixedly connected with a first gear and a first bevel gear, and the first gear is matched with the first end face gear;
the top of the shell is fixedly connected with a baffle, a long shaft is rotatably arranged on the baffle, one end of the long shaft is connected with a first screw rod through a first universal joint, the other end of the long shaft is fixedly connected with a second bevel gear, and the second bevel gear is matched with the first bevel gear; the first internal thread pipe is connected to the first screw rod in a threaded mode, and the end portion of the first screw rod is connected to the bottom of the connecting piece in a soft mode.
Preferably, the front-rear leveling structure includes: the ball seat is slidably matched with the ball body, and the ball seat is coaxially and fixedly connected with a second face gear; the bearing seat is fixed on the inner wall of the shell, an inclined shaft is rotatably arranged in the bearing seat, the axis of the inclined shaft passes through the sphere shape of the sphere and is perpendicular to the axis of the rotating shaft, a second gear is fixedly connected on the inclined shaft, and the second gear is matched with the second end face gear; the vertical shaft is rotatably arranged on the baffle, one end of the vertical shaft is connected with the inclined shaft through a second universal joint, and the other end of the vertical shaft is connected with the second screw through a third universal joint; the second internal thread pipe spiro union is on the second screw rod, and the tip flexonics of second internal thread pipe is in the connecting piece bottom, and the second balancing weight rigid coupling is in the ball seat bottom to make the focus of ball seat be located the second balancing weight bottom.
Preferably, the gas measurement device comprises a bracket, two window mirrors are symmetrically arranged on two sides of the inside of the bracket, collimators are arranged on the two window mirrors, a laser is arranged in one window mirror, three groups of ultrasonic transmitters are arranged on the window mirror, and a photoelectric detector is arranged in the other window mirror, and three groups of ultrasonic receivers are arranged on the window mirror.
The self-adjusting small open-circuit greenhouse gas measuring device provided by the utility model has the beneficial effects that: when the device is used, the leveling mechanism can conduct angle adjustment on the gas measurement equipment only by fixing the shell on the ground, so that the equipment is in a horizontal state, a user is not required to conduct ground leveling work, time required for ground leveling is saved, and physical power consumption of the user is reduced.
Drawings
FIG. 1 is a front view of a self-adjusting small open-circuit greenhouse gas measurement device according to the present utility model.
FIG. 2 is a schematic diagram of a self-adjusting small open-circuit greenhouse gas measurement device according to the present utility model.
FIG. 3 is a top view of a connector and housing of a self-adjusting small open-circuit greenhouse gas measurement device according to the present utility model.
FIG. 4 is a cross-sectional view taken along the direction A-A of FIG. 3 of a self-adjusting small open-circuit greenhouse gas measurement device in accordance with the present utility model.
FIG. 5 is a cross-sectional view taken along the direction B-B of FIG. 3 of a self-adjusting small open-circuit greenhouse gas measurement device in accordance with the present utility model.
FIG. 6 is a schematic view of the inside of a housing of a self-adjusting small open-circuit greenhouse gas measurement device according to the present utility model.
FIG. 7 is an enlarged view of a portion of FIG. 6 of a self-adjusting small open-circuit greenhouse gas measurement device in accordance with the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
Referring to fig. 1-7, a self-regulating small open-circuit greenhouse gas measurement device, comprising: the device comprises a connecting piece 2, a shell 1 and a leveling mechanism, wherein the connecting piece 2 is connected with gas measuring equipment; the shell 1 is connected with the connecting piece 2 to support the gas measuring equipment; the leveling mechanism is installed inside the shell 1 to adjust the angle of the connecting piece 2, so that the gas measuring equipment is in a horizontal state.
The gas measurement device comprises a support 3, two window mirrors are symmetrically arranged on two sides of the inside of the support 3, collimators are arranged on the two window mirrors, a laser is arranged in one window mirror, three groups of ultrasonic transmitters are arranged on the window mirror, and a photoelectric detector is arranged in the other window mirror, and three groups of ultrasonic receivers are arranged on the window mirror.
When the gas measurement device works, the laser emits laser with specific wavelength, the laser beam collimated by the collimator is received by the photoelectric detector to complete photoelectric conversion, and the gas detection center collects, processes and receives the received spectrum signal and obtains the target gas concentration through a concentration inversion algorithm. Meanwhile, when the device is applied in the open air for a long time, the problems that the measuring structure is deformed due to environmental temperature change, atmospheric turbulence, dust pollution to the optical lens and the like can cause fluctuation of light intensity signals, so that the stability of a system and a measuring result are affected, and a wiper is additionally arranged on a window mirror to clean the lens.
Three groups of ultrasonic transmitters and three groups of ultrasonic receivers utilize ultrasonic waves to influence propagation speed in air by airflow motion so as to obtain hundred Hz three-dimensional wind speed data, and vertical wind speed fluctuation under a natural coordinate system is obtained through a secondary coordinate rotation formula, so that the problem of observation errors caused by instrument inclination in the installation process is solved, flux data is obtained through processing covariance of gas concentration fluctuation and corrected vertical wind speed fluctuation, and therefore small-scale flux weak change is captured in complex gas exchange motion.
When the device is used, the leveling mechanism can conduct angle adjustment on the gas measurement equipment only by fixing the shell 1 on the ground, so that the equipment is in a horizontal state, a user is not required to conduct ground leveling work, time required for ground leveling is saved, and physical power consumption of the user is reduced.
The leveling mechanism comprises a left leveling structure, a right leveling structure, a front leveling structure and a rear leveling structure, wherein:
the left and right leveling structure includes:
the rotary shaft 4, the first end face gear 7, the first balancing weight 6, the short shaft 8, the long shaft 11 and the first internal thread pipe 16 are rotatably arranged in the shell 1, the rotary shaft 4 is fixedly connected with the ball 5, and the axis of the rotary shaft 4 passes through the center of the ball 5; the middle part of the sphere 5 is grooved, and a first end face gear 7 is fixedly connected in the groove; the first balancing weight 6 is fixedly connected to the bottom of the sphere 5, so that the gravity center of the sphere 5 is positioned at the bottommost end of the first balancing weight 6; the short shaft 8 is rotatably arranged in the shell 1, the axis of the short shaft 8 passes through the sphere center of the sphere 5 and is perpendicular to the axis of the rotating shaft 4, the short shaft 8 is fixedly connected with a first gear 9 and a first bevel gear 10, and the first gear 9 is matched with the first end face gear 7; the top of the shell 1 is fixedly connected with a baffle 14, a long shaft 11 is rotatably arranged on the baffle 14, one end of the long shaft 11 is connected with a first screw 15 through a first universal joint 13, the other end of the long shaft 11 is fixedly connected with a second bevel gear 12, and the second bevel gear 12 is matched with the first bevel gear 10; the first internal thread pipe 16 is in threaded connection with the first screw rod 15, and the end part of the first screw rod 15 is in soft connection with the bottom of the connecting piece 2.
The left and right leveling structure is in operation:
as shown in fig. 1, when the device is tilted left and right:
as shown in fig. 5, because the center of gravity of the ball 5 is located on the first balancing weight 6, when the housing 1 is tilted, the ball 5 is influenced by gravity to rotate, the tilt direction and the tilt angle of the housing 1 are different, so that the rotation direction and the rotation angle of the ball 5 are changed, according to the rotation angle and the direction of the ball 5, the ball 5 drives the first end face gear 7 to deflect correspondingly, the first end face gear 7 deflects to drive the first gear 9 to rotate, the first gear 9 rotates to drive the short shaft 8 to rotate, the short shaft 8 rotates to drive the first bevel gear 10 to rotate, the first bevel gear 10 drives the second bevel gear 12 to rotate, the second bevel gear 12 drives the long shaft 11 to rotate, the long shaft 11 rotates to drive the first screw 15 to rotate through the first universal joint 13, the first screw 15 rotates in the first internal threaded pipe 16, so that the connecting piece 2 deflects, the connecting piece 2 is fixedly connected with the gas measuring equipment, the connecting piece 2 drives the gas measuring equipment to synchronously rotate, so that the tilt angle of the gas measuring equipment is compensated, and the horizontality of the gas measuring equipment is improved.
The front-rear leveling structure includes:
the ball seat 17, the bearing seat 20, the vertical shaft 24, the second internal thread pipe 27 and the second balancing weight 18, the ball seat 17 is slidably matched on the ball body 5, and the second face gear 19 is coaxially fixedly connected on the ball seat 17; the bearing seat 20 is fixed on the inner wall of the shell 1, an inclined shaft 21 is rotatably arranged in the bearing seat 20, the axis of the inclined shaft 21 passes through the sphere of the sphere 5 and is perpendicular to the axis of the rotating shaft 4, a second gear 22 is fixedly connected on the inclined shaft 21, and the second gear 22 is matched with the second face gear 19; the vertical shaft 24 is rotatably arranged on the baffle 14, one end of the vertical shaft 24 is connected with the inclined shaft 21 through a second universal joint 23, and the other end of the vertical shaft 24 is connected with a second screw 26 through a third universal joint 25; the second internal thread pipe 27 is in threaded connection with the second screw rod 26, the end part of the second internal thread pipe 27 is in soft connection with the bottom of the connecting piece 2, and the second balancing weight 18 is fixedly connected with the bottom of the ball seat 17, so that the gravity center of the ball seat 17 is located at the bottommost end of the second balancing weight 18.
The front and rear leveling structure works as follows:
as shown in fig. 1, when the device is tilted back and forth:
as shown in fig. 4, because the center of gravity of the ball seat 17 is located on the second balancing weight 18, when the housing 1 tilts, the ball seat 17 rotates on the ball 5 under the action of gravity, the rotation direction and rotation angle of the ball seat 17 correspond to the tilting direction and tilting angle of the housing 1, the ball seat 17 rotates according to the tilting direction and tilting angle of the housing 1, the ball seat 17 rotates to drive the second face gear 19 to rotate, the second face gear 19 drives the second gear 22 to rotate, the second gear 22 drives the inclined shaft 21 to rotate, the inclined shaft 21 drives the vertical shaft 24 to rotate through the second universal joint 23, the vertical shaft 24 drives the second screw 26 to rotate through the third universal joint 25, the second screw 26 rotates in the second internally threaded tube 27 to drive the second internally threaded tube 27 to axially move, and the second internally threaded tube 27 axially moves to change the angle of the connecting piece 2, so as to compensate the tilting angle of the gas measuring device.
The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (4)
1. A self-regulating small open-circuit greenhouse gas measurement device, comprising:
the connecting piece (2), the connecting piece (2) is connected with the gas measuring equipment;
the shell (1), the shell (1) links with connecting piece (2), in order to support the gas measurement equipment;
the leveling mechanism is arranged in the shell (1) to adjust the angle of the connecting piece (2) so as to enable the gas measuring equipment to be in a horizontal state.
2. The self-adjusting small open-circuit greenhouse gas measurement device according to claim 1, wherein the leveling mechanism comprises a left-right leveling structure and a front-back leveling structure, wherein:
the left and right leveling structure includes:
the rotating shaft (4) is rotatably arranged in the shell (1), the rotating shaft (4) is fixedly connected with the ball body (5), and the axis of the rotating shaft (4) passes through the center of the ball body (5);
the first end face gear (7) is grooved in the middle of the sphere (5), and the first end face gear (7) is fixedly connected in the groove;
the first balancing weight (6) is fixedly connected to the bottom of the sphere (5) so that the gravity center of the sphere (5) is positioned at the bottommost end of the first balancing weight (6);
the short shaft (8) is rotatably arranged in the shell (1), the axis of the short shaft (8) passes through the sphere center of the sphere (5) and is perpendicular to the axis of the rotating shaft (4), the short shaft (8) is fixedly connected with a first gear (9) and a first bevel gear (10), and the first gear (9) is matched with the first end face gear (7);
a baffle (14) is fixedly connected to the top of the shell (1), the long shaft (11) is rotatably arranged on the baffle (14), one end of the long shaft (11) is connected with a first screw (15) through a first universal joint (13), a second bevel gear (12) is fixedly connected to the other end of the long shaft (11), and the second bevel gear (12) is matched with the first bevel gear (10);
the first internal thread pipe (16), first internal thread pipe (16) spiro union is on first screw rod (15), and first screw rod (15) tip flexonics is in connecting piece (2) bottom.
3. The self-adjusting small open-circuit greenhouse gas measurement device according to claim 2, wherein the front-to-rear leveling structure comprises:
the ball seat (17), the ball seat (17) is slidably matched on the ball body (5), and the second face gear (19) is fixedly connected on the ball seat (17) in a coaxial line;
the bearing seat (20), the bearing seat (20) is fixed on the inner wall of the shell (1), the inclined shaft (21) is rotatably installed in the bearing seat (20), the axis of the inclined shaft (21) passes through the sphere of the sphere (5) and is perpendicular to the axis of the rotating shaft (4), the inclined shaft (21) is fixedly connected with the second gear (22), and the second gear (22) is matched with the second face gear (19);
the vertical shaft (24) is rotatably arranged on the baffle plate (14), one end of the vertical shaft (24) is connected with the inclined shaft (21) through a second universal joint (23), and the other end of the vertical shaft (24) is connected with a second screw (26) through a third universal joint (25);
the second internal thread pipe (27), the second internal thread pipe (27) is screwed on the second screw rod (26), the end part of the second internal thread pipe (27) is flexibly connected to the bottom of the connecting piece (2);
the second balancing weight (18), second balancing weight (18) rigid coupling is in ball seat (17) bottom to make the focus of ball seat (17) be located second balancing weight (18) bottommost.
4. A self-adjusting small open-circuit greenhouse gas measurement device according to any one of claims 1-3, characterized in that the gas measurement equipment comprises a support (3), two window mirrors are symmetrically arranged on two sides inside the support (3), collimators are arranged on the two window mirrors, a laser is arranged in one window mirror and three groups of ultrasonic transmitters are arranged on the window mirror, and a photoelectric detector is arranged in the other window mirror and three groups of ultrasonic receivers are arranged on the window mirror.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223335372.9U CN219122159U (en) | 2022-12-12 | 2022-12-12 | Self-adjusting small open-circuit greenhouse gas measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223335372.9U CN219122159U (en) | 2022-12-12 | 2022-12-12 | Self-adjusting small open-circuit greenhouse gas measuring device |
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| CN219122159U true CN219122159U (en) | 2023-06-02 |
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| CN202223335372.9U Active CN219122159U (en) | 2022-12-12 | 2022-12-12 | Self-adjusting small open-circuit greenhouse gas measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118218837A (en) * | 2024-05-27 | 2024-06-21 | 杭州嘉顺通信设备有限公司 | Welding device for electric power copper bar processing |
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2022
- 2022-12-12 CN CN202223335372.9U patent/CN219122159U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118218837A (en) * | 2024-05-27 | 2024-06-21 | 杭州嘉顺通信设备有限公司 | Welding device for electric power copper bar processing |
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