Sample plot monitoring device and method for forest grass carbon sink fixed monitoring

Abstract

The invention relates to the field of forest grass carbon sink sample plot monitoring, in particular to a sample plot monitoring device and method for forest grass carbon sink fixed monitoring, and the device comprises a supporting part which comprises a vertically arranged supporting column, the supporting column is fixedly connected with a bearing column, the supporting column is provided with an electrochemical sensor, the electrochemical sensor is internally provided with a filter screen, and the bearing column is fixedly connected with the supporting column. An outer frame is arranged at the outer end of the filter screen; the replacement part comprises a shell fixed on the side wall of the electrochemical sensor, a replacement part for replacing the filter screen is arranged in the shell, a mounting cylinder is fixedly connected to the shell, an opening is formed in the mounting cylinder, a lifting block is slidably connected to the interior of the opening, a plurality of shifting blocks are arranged on the lifting block and the side wall of the mounting cylinder, and the shifting blocks are arranged on the lifting block and the side wall of the mounting cylinder. According to the sample plot carbon sink monitoring electrochemical sensor filter screen replacement device, automatic replacement of an electrochemical sensor filter screen for sample plot carbon sink monitoring can be carried out, and therefore the frequency of maintaining the electrochemical sensor by workers is reduced.

Description

Technical Field

[0001] The present invention relates to the field of forest and grass carbon sink plot monitoring, in particular to a plot monitoring device and method for forest and grass carbon sink fixation monitoring. Background Art

[0002] Carbon sink monitoring refers to the regular observation and recording of carbon storage and carbon flow in an ecosystem to understand the carbon cycle process, evaluate the change of carbon storage, and identify carbon emission and absorption sources. When conducting large-area carbon sink measurement, representative plots are generally selected for monitoring. During monitoring, the carbon concentration is measured by an electrochemical sensor, and then a large model calculation is performed based on the measured concentration to obtain the carbon sink value of the entire area.

[0003] During use, when the electrochemical sensor measures, air intake is required. The air intake passes through a filter screen and then reacts with the working motor. Since the air inevitably carries dust or particulate matter, it is easy to cause the filter screen to become blocked when passing through the filter screen, resulting in the need to replace the filter screen every about three months. Since the existing electrochemical sensors do not have a filter screen replacement function, manual replacement is required when replacing the filter screen. Since the bottom support columns of the electrochemical sensors are generally set relatively high, workers need to climb to a high place for replacement, making the overall operation rather inconvenient. Therefore, how to automatically replace the filter screen of the electrochemical sensor or reduce the replacement frequency of workers has become a social need. Summary of the Invention

[0004] In view of the problem that in the above or existing technology, the electrochemical sensor does not have a filter screen replacement function, manual replacement is required when replacing the filter screen, and since the bottom support columns of the electrochemical sensors are generally set relatively high, workers need to climb to a high place for replacement, making the overall operation rather inconvenient, the present invention is proposed.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: including a supporting component, including a vertically arranged supporting column, a bearing column is fixedly connected to the supporting column, an electrochemical sensor is arranged on the supporting column, a filter is arranged in the electrochemical sensor, and an outer frame is arranged at the outer end of the filter; a replacement component includes a shell fixed on the side wall of the electrochemical sensor, a replacement part for replacing the filter is arranged in the shell, a mounting cylinder is fixedly connected to the shell, an opening is arranged on the mounting cylinder, a lifting block is slidably connected in the opening, a plurality of shifting blocks are arranged on the lifting block and the side wall of the mounting cylinder, a limiting opening for cooperating with the lifting block is arranged on the shifting block, the shifting block is connected to the outer frame through a transmission part, and a guide part for guiding the shifting block is arranged on the side wall of the mounting cylinder; a power component includes a lifting part arranged in the mounting cylinder to provide power for lifting and lowering the lifting block, a turntable is rotatably connected to the bottom of the mounting cylinder through a transmission shaft, a rotating part for shifting the shifting block is arranged on the turntable, a power part for providing power to the rotating part is arranged on the lifting part, and an opening part for facilitating replacement of the replacement part is arranged on the shell.

[0006] As a preferred solution of the sample plot monitoring device for fixed monitoring of forest and grassland carbon sinks of the present invention, the replacement part includes a plurality of replacement frames arranged in the shell, and a plurality of replacement frames are each provided with a replacement filter.

[0007] As a preferred solution of the sample plot monitoring device for fixed monitoring of forest and grassland carbon sinks of the present invention, wherein: the transmission part includes a connecting port arranged on the electrochemical sensor, a plurality of the substitute frames and the outer frame are fixedly connected with extension blocks, the extension blocks and the shift blocks are fixedly provided with mounting ports, a rotating shaft is rotatably connected in the mounting port, a transmission plate is rotatably connected to the corresponding rotating shaft of the shift block, and the transmission plate is rotatably connected to the corresponding rotating shaft of the extension block.

[0008] As a preferred solution of the sample plot monitoring device for fixed monitoring of forest and grassland carbon sinks of the present invention, the guide part includes a pair of guide plates fixedly connected to the side wall of the mounting tube, the pair of guide plates cooperate with the shifting blocks corresponding to the lifting blocks to ensure that the shifting blocks go straight up and down, a pair of circular rings are fixedly connected to the side wall of the mounting tube, the pair of circular rings are provided with notches that cooperate with the guide plates, and a plurality of shifting blocks on the side wall of the mounting tube are located between the pair of circular rings to prevent the shifting blocks from sliding up and down.

[0009] As a preferred solution of the sample plot monitoring device for fixed monitoring of forest and grassland carbon sinks of the present invention, the lifting part includes an electric slide rail arranged inside the mounting cylinder, a lifting plate is slidably connected to the electric slide rail through a slider, a circular opening is provided on the lifting block, a lifting column passing through the circular opening is fixedly connected to the lifting plate, a cap with a diameter larger than the circular opening is fixedly connected to the lifting column, and the circular disk is elastically connected to the lifting block through a telescopic spring.

[0010] As a preferred embodiment of the plot monitoring device for forest and grass carbon sequestration fixation of the present invention, wherein: the rotating part includes a plurality of lever rods fixedly connected to the turntable, and an inner groove cooperating with the lever rods is provided at the bottom of the dial block.

[0011] As a preferred embodiment of the plot monitoring device for forest and grass carbon sequestration fixation of the present invention, wherein: the power part includes a push rod fixedly connected to the cap, a support opening is provided on the mounting cylinder, the transmission shaft is rotatably connected to the inner wall of the support opening, a support groove is provided on the transmission shaft, a plurality of first vertical grooves are provided in the support groove, arc grooves are communicated with the plurality of first vertical grooves, a second vertical groove penetrating the transmission shaft is communicated with the arc groove, an outward expansion groove is provided in the second vertical groove, a bearing shaft is rotatably connected in the outward expansion groove, a stopper is fixedly connected to the bearing shaft, a torsion spring is provided on the bearing shaft, and the lower end surface of the stopper abuts against the inner wall of the outward expansion groove.

[0012] As a preferred embodiment of the plot monitoring device for forest and grass carbon sequestration fixation of the present invention, wherein: the first vertical groove, the arc groove, and the second vertical groove are a group, and the first vertical groove and the second vertical groove between adjacent two groups are communicated.

[0013] As a preferred embodiment of the plot monitoring device for forest and grass carbon sequestration fixation of the present invention, wherein: the opening part includes a positioning ring fixedly connected to the inner wall of the housing, a cover plate cooperating with the positioning ring is provided on the housing, and the cover plate is fixedly connected to the positioning ring by bolts.

[0014] A plot monitoring method for forest and grass carbon sequestration fixation, which includes the installation of support columns, bearing columns, electrochemical sensors and various components; connecting the power supply to allow the electrochemical sensor to intake air; the gas is filtered by the filter screen and then enters the bottom of the electrochemical sensor for detection, and the detection results are transmitted; when the filter screen is replaced, the electric slide rail is started; the disc moves downward to replace the substitute filter screen and the filter screen through transmission; the electrochemical sensor after replacing the filter screen continues to detect.

[0015] The beneficial effects of the plot monitoring device for forest and grass carbon sequestration fixation of the present invention: by setting the replacement components, during the process of the electric slide rail starting to drive the disc to move downward, the automatic replacement between the substitute filter screen and the filter screen can be realized, so as to achieve the automatic replacement of the filter screen, and a plurality of substitute filter screens are provided, thereby greatly extending the period for workers to maintain the electrochemical sensor, making it more convenient to use, and further solving the problem that the electrochemical sensor does not have the function of replacing the filter screen and requires manual replacement when replacing the filter screen. Since the bottom support column of the electrochemical sensor is generally set relatively high, workers need to climb to a high place for replacement, making the overall operation more inconvenient, and achieving the effect of automatically replacing the filter screen and reducing the maintenance frequency of the electrochemical sensor by workers. Description of the Drawings

[0016] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0017] Figure 1 It is a schematic external structure diagram of a sample plot monitoring device for forest and grass carbon sequestration fixation.

[0018] Figure 2 It is a schematic external structure diagram of the opening part of a sample plot monitoring device for forest and grass carbon sequestration fixation.

[0019] Figure 3 It is a schematic cross-sectional structure diagram of the replacement part of a sample plot monitoring device for forest and grass carbon sequestration fixation.

[0020] Figure 4 It is a schematic external structure diagram of the transmission part of a sample plot monitoring device for forest and grass carbon sequestration fixation.

[0021] Figure 5 It is a schematic external structure diagram of the guiding part of a sample plot monitoring device for forest and grass carbon sequestration fixation.

[0022] Figure 6 It is a schematic cross-sectional structure diagram of the lifting part of a sample plot monitoring device for forest and grass carbon sequestration fixation.

[0023] Figure 7 It is Figure 6 a schematic enlarged structure diagram of part A of

[0024] Figure 8 It is Figure 6 a schematic enlarged structure diagram of part B of

[0025] Figure 9 It is Figure 8 a schematic enlarged structure diagram of part C of

[0026] Figure 10 It is a front view of the power part of a sample plot monitoring device for forest and grass carbon sequestration fixation.

[0027] Figure 11 It is a schematic external structure diagram of the lifting part of a sample plot monitoring device for forest and grass carbon sequestration fixation.

[0028] In the figure: 10, support column; 11, bearing column; 12, electrochemical sensor; 13, filter screen; 14, outer frame; 20, shell; 21, replacement part; 211, replacement frame; 212, replacement filter screen; 22, installation cylinder; 23, opening; 24, lifting block; 25, shifting block; 26, transmission part; 261, connecting port; 262, extension block; 263, installation port; 264, transmission plate; 27, guide part; 271, guide plate; 272, ring; 273, notch; 30, lifting part; 301, electric Slide rail; 302, lifting plate; 303, round mouth; 304, lifting column; 305, cap; 306, telescopic spring; 31, transmission shaft; 32, turntable; 33, rotating part; 331, lever; 332, inner groove; 34, power part; 341, push rod; 342, supporting groove; 343, first vertical groove; 344, arc groove; 345, second vertical groove; 346, outward expansion groove; 347, stopper; 348, torsion spring; 35, opening part; 351, positioning ring; 352, cover plate; 353, bolt. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] Example 1, reference Figures 1 to 11 , which is the first embodiment of the present invention, and provides a plot monitoring device for fixed monitoring of forest and grass carbon sinks, which can achieve the effect of automatically replacing the filter screen in the electrochemical sensor 12 with only one electric slide rail 301 providing power, and includes a supporting component, including a vertically arranged supporting column 10, a bearing column 11 is fixedly connected to the supporting column 10, an electrochemical sensor 12 is arranged on the supporting column 10, a filter screen 13 is arranged in the electrochemical sensor 12, and an outer frame 14 is arranged at the outer end of the filter screen 13; a replacement component includes a shell 20 fixed on the side wall of the electrochemical sensor 12, a replacement part 21 for replacing the filter screen 13 is arranged in the shell 20, a mounting cylinder 22 is fixedly connected to the shell 20, and the mounting cylinder 22 An opening 23 is provided on the top, and a lifting block 24 is slidably connected in the opening 23. A plurality of shifting blocks 25 are provided on the side walls of the lifting block 24 and the mounting tube 22. A limiting opening cooperating with the lifting block 24 is provided on the shifting block 25. The shifting block 25 is connected to the outer frame 14 through a transmission part 26. A guide part 27 for guiding the shifting block 25 is provided on the side wall of the mounting tube 22; a power part 34 includes a lifting part 30 provided in the mounting tube 22 for providing power for the lifting and lowering of the lifting block 24. A turntable 32 is rotatably connected to the bottom of the mounting tube 22 through a transmission shaft 31. A rotating part 33 for shifting the shifting block 25 is provided on the turntable 32. A power part 34 for providing power to the rotating part 33 is provided on the lifting part 30. An opening part 35 for facilitating replacement of a substitute part is provided on the shell 20.

[0031] Specifically, the included angle between the support column 10 and the bearing column 11 is 90°. A distribution box is also provided on the support column 10 for supplying power to the electrochemical sensor 12. A solar panel can also be provided on the support column 10 to achieve solar power generation, thereby realizing energy conservation. The electrochemical sensor 12 is provided with an air inlet, and a filter chamber for accommodating the filter screen 13 is provided inside the electrochemical sensor 12. The gas is filtered by the filter screen 13 and then enters the bottom of the electrochemical sensor 12 for detection. This is the prior art and will not be elaborated here.

[0032] Further, the replacement part 21 includes a plurality of replacement frames 211 arranged in the housing 20, and replacement filter screens 212 are provided in each of the plurality of replacement frames 211; the transmission part 26 includes a communication port 261 arranged on the electrochemical sensor 12. Extension blocks 262 are fixedly connected to both the plurality of replacement frames 211 and the outer frame 14. Mounting ports 263 are fixedly provided on both the extension block 262 and the dial block 25. A rotating shaft is rotatably connected in the mounting port 263. A transmission plate 264 is rotatably connected to the corresponding rotating shaft of the dial block 25, and the transmission plate 264 is rotatably connected to the extension block 262 corresponding to the rotating shaft; the guiding part 27 includes a pair of guiding plates 271 fixedly connected to the side wall of the mounting cylinder 22. The pair of guiding plates 271 cooperate with the dial block 25 corresponding to the lifting block 24 to ensure that the dial block 25 moves straight up and down. A pair of circular rings 272 are fixedly connected to the side wall of the mounting cylinder 22. Notches 273 for cooperating with the guiding plates 271 are provided on the pair of circular rings 272. A plurality of dial blocks 25 on the side wall of the mounting cylinder 22 are located between the pair of circular rings 272 to prevent the dial block 25 from sliding up and down.

[0033] Among them, there is no fixed name for the replacement filter screen 212 and the filter screen 13 here. The one inside the electrochemical sensor 12 is the filter screen 13, and the one inside the outer shell is the replacement filter screen 212. The distance between the guiding plates 271 is equal to the width of the notch 273, so as to ensure that the dial block 25 can accurately enter the notch 273. The dial block 25 corresponding to the opening 23 is located above the other dial blocks 25.

[0034] Preferably, the lifting part 30 includes an electric slide rail 301 disposed inside the mounting cylinder 22. A lifting plate 302 is slidably connected to the electric slide rail 301 through a slider. A circular opening 303 is provided on the lifting block 24. A lifting column 304 passing through the circular opening 303 is fixedly connected to the lifting plate 302. A cap 305 with a diameter larger than the circular opening 303 is fixedly connected to the lifting column 304. The disc is elastically connected to the lifting block 24 through a telescopic spring 306. The rotating part 33 includes a plurality of dial rods 331 fixedly connected to the turntable 32. An inner groove 332 cooperating with the dial rods 331 is provided at the bottom of the dial block 25. The power part 34 includes a push rod 341 fixedly connected to the cap 305. A support opening is provided on the mounting cylinder 22. The transmission shaft 31 is rotatably connected to the inner wall of the support opening. A support groove 342 is provided on the transmission shaft 31. A plurality of first vertical grooves 343 are provided in the support groove 342. An arc groove 344 is communicated with each of the plurality of first vertical grooves 343. A second vertical groove 345 penetrating the transmission shaft 31 is communicated with the arc groove 344. An outward expansion groove 346 is provided in the second vertical groove 345. A bearing shaft is rotatably connected in the outward expansion groove 346. A stop block 347 is fixedly connected to the bearing shaft. A torsion spring 348 is provided on the bearing shaft. The lower end surface of the stop block 347 abuts against the inner wall of the outward expansion groove 346. The first vertical groove 343, the arc groove 344, and the second vertical groove 345 are a group. The first vertical groove 343 and the second vertical groove 345 between adjacent groups are communicated with each other.

[0035] It should be noted that the telescopic spring 306 has sufficient elasticity and will not cause premature compression of the telescopic spring 306 during the downward movement of the lifting block 24. The setting of the cap 305 can drive the lifting block 24 to move upward when the lifting column 304 moves upward. Here, the inner groove 332 is divided into two parts. The outer end is frustum-shaped and the inner end is circular. Thus, even if the dial block 25 has a slight deviation, the position can be corrected. The cooperation between the push rod 341 and the arc groove 344 can drive a plurality of dial blocks 25 to just perform a position exchange. At the same time, guide grooves can be provided on the inner wall of the ring 272, and guide blocks can be provided on the dial block 25. Thus, when the dial block 25 slides, the phenomenon that the dial block 25 is separated from the ring 272 will not occur.

[0036] In use, when it is necessary to replace the filter screen 13 after the electrochemical sensor 12 (a device for monitoring carbon sinks) has been used for three months (the time here is not fixed and depends on the local air quality. A plurality of replacement filter screens 212 are provided here, so that maintenance can be carried out once every one or two years), only the electric slide rail 301 needs to be started (the electric slide rail 301 here can be remotely controlled. Just set the time, and it can be automatically started. This is an existing technology and will not be elaborated here). The slider moves downward, and the lifting plate 302 moves downward. Due to the setting of the telescopic spring 306, when the lifting plate 302 moves downward, it can drive the lifting block 24 to move downward, so that the dial block 25 moves downward. A pair of guide plates 271 guide the dial block 25 to prevent the dial block 25 from separating from the lifting block 24. Of course, a damping can also be set between the limiting port and the dial block 25 to prevent the dial block 25 from separating from the limiting port. The downward movement of the dial block 25 makes the extension block 262 corresponding to the communication port 261 move toward the housing 20 through the transmission plate 264, and the outer frame 14 moves toward the housing 20, so that the filter screen 13 is separated from the electrochemical sensor 12;

[0037] When the lifting block 24 moves to the bottom of the opening 23, the filter screen 13 completely enters the housing 20, and the inner groove 332 on the dial block 25 cooperates with the dial rod 331. At this time, the electric slide rail 301 continues to move the slider downward. Since the lifting block 24 cannot continue to move downward and the upper end surface of the support port is flush with the lower end surface of the cap 305, when the lifting plate 302 continues to descend, the telescopic spring 306 is compressed, the lifting column 304 moves downward, and the cap 305 moves downward, driving the push rod 341 to move into the first vertical groove 343. At this time, since the lower end of the stop block 347 abuts against the inner wall of the outward expansion groove 346, the push rod 341 cannot move into the second vertical groove 345, and the push rod 341 moves into the arc groove 344. The push rod 341 cooperates with the arc groove 344 to make the transmission shaft 31 rotate, and then the turntable 32 rotates, so that the dial rod 331 rotates around the turntable 32, driving a plurality of dial blocks 25 to change positions. When the dial block 25 rotates, a pair of rings 272 guide the plurality of dial blocks 25. At the same time, since the replacement frame 211 always abuts against the inner wall of the housing 20 when the dial block 25 rotates, the phenomenon that the dial block 25 separates from the ring 272 will not occur. It should be noted that the arc of the cooperation between the push rod 341 and the arc groove 344 is exactly equal to the arc of one dial block 25, so that exactly the position of one dial block 25 is changed, replacing the replacement filter screen 212 to the original position of the filter screen 13, and the limiting port of the dial block 25 cooperates with the lifting block 24, and the dial block 25 is exactly between a pair of guide plates 271. At this time, the push rod 341 moves into the second vertical groove 345, and then the electric slide rail 301 makes the slider move upward, and the push rod 341 enters the first vertical groove 343 along the second vertical groove 345. At this time, the transmission shaft 31 does not rotate, and the position of the dial block 25 will not shift;

[0038] Then, after the cap 305 abuts against the lifting block 24, the disc continues to move upward, driving the lifting plate upward, and further causing the shifting block 25 to move upward. When the shifting block 25 moves upward, the replacement filter screen enters the electrochemical sensor 12 through the transmission plate 264, completing the replacement of the filter screen 13. It should be noted that elastic sealing rings are provided on both the outer frame 14 and the replacement frame 211. When being pushed into the electrochemical sensor 12, the connection between the outer frame 14 and the replacement frame 211 and the electrochemical sensor 12 can be automatically sealed.

[0039] In summary, by setting the replacement component, only one electric slide rail 301 needs to be activated to automatically replace the filter screen 13, so that workers do not need to replace it regularly, extending the replacement time for workers, being more convenient to use, reducing manpower at the same time, and saving costs.

[0040] Example 2, referring to Figures 1 to 3 , is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides an opening part 35 for the sample plot monitoring device for forest and grass carbon sink fixation monitoring, which solves the problem of how to replace the replacement filter screen 212 and the filter screen 13. It includes an opening part 35, which includes a positioning ring 351 fixedly connected to the inner wall of the housing 20. A cover plate 352 is provided on the housing 20 and is fixedly connected to the positioning ring 351 through a bolt 353.

[0041] Specifically, the connection between the outer frame 14 and the filter screen 13, and between the replacement frame 211 and the replacement filter screen 212 is detachable. The method here can be pin fixing, screw fixing. The method here is not unique, as long as it can be fixed and is convenient for disassembly.

[0042] During use, when the overall replacement of the replacement filter screen 212 and the filter screen 13 is required, only the bolt 353 needs to be rotated to open the cover plate 352. A waterproof cover is provided on the bolt 353, and the bolt 353 is plated to prevent the bolt 353 from rusting and affecting the opening of the bolt 353. After the cover plate 352 is opened, since multiple replacement filter screens 212 are all at the upper end of the housing 20, it is convenient to disassemble, incline or replace the replacement filter screen 212.

[0043] In summary, by setting the opening part 35, when the replacement of the replacement filter screen 212 and the filter screen 13 is required, only the bolt 353 needs to be rotated to remove the cover plate 352, and then the replacement of the replacement filter screen 212 and the filter screen 13 can be directly carried out, making the maintenance simpler and more convenient.

[0044] Example 3 is the third example of the present invention. Different from the previous example, this example provides a plot monitoring method for forest and grass carbon sink fixation, which includes the installation of support columns 10, bearing columns 11, electrochemical sensors 12 and various components; connecting the power supply to allow the electrochemical sensors 12 to intake air; the gas is filtered by the filter net 13 and then enters the bottom of the electrochemical sensor 12 for detection, and the detection results are transmitted; when replacing the filter net 13, the electric slide rail 301 is started; the disc moves downward to replace the substitute filter net 212 and the filter net 13 through transmission; the electrochemical sensor 12 after replacing the filter net 13 continues to conduct detection.

[0045] It should be noted that the above examples are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A plot monitoring device for forest and grass carbon sink fixation monitoring, characterized in that: include, A support component comprises a vertically arranged support column (10), a bearing column (11) being fixedly connected to the support column (10), an electrochemical sensor (12) being arranged on the support column (10), a filter screen (13) being arranged inside the electrochemical sensor (12), and an outer frame (14) being arranged at the outer end of the filter screen (13); A replacement component comprises a shell (20) fixed on the side wall of an electrochemical sensor (12), a replacement portion (21) for replacing a filter screen (13) is arranged in the shell (20), a mounting cylinder (22) is fixedly connected to the shell (20), an opening (23) is arranged on the mounting cylinder (22), a lifting block (24) is slidably connected in the opening (23), a plurality of shifting blocks (25) are arranged on the lifting block (24) and the side wall of the mounting cylinder (22), a limiting opening for cooperating with the lifting block (24) is arranged on the shifting block (25), the shifting block (25) is connected to an outer frame (14) via a transmission portion (26), and a guide portion (27) for guiding the shifting block (25) is arranged on the side wall of the mounting cylinder (22); The power part (34) comprises a lifting part (30) arranged in the installation cylinder (22) and providing power for lifting the lifting block (24); the bottom of the installation cylinder (22) is rotatably connected to a turntable (32) via a transmission shaft (31); the turntable (32) is provided with a rotating part (33) for shifting the shifting block (25); the lifting part (30) is provided with a power part (34) for providing power for the rotating part (33); and the housing (20) is provided with an opening part (35) for facilitating replacement of the replacement part.

2. The plot monitoring device for forest and grass carbon sink fixation monitoring according to claim 1, characterized in that: The replacement part (21) comprises a plurality of replacement frames (211) arranged in the housing (20), and a replacement filter screen (212) is arranged in each of the plurality of replacement frames (211).

3. The plot monitoring device for forest and grass carbon sink fixation monitoring according to claim 2, wherein: The transmission part (26) comprises a communication port (261) arranged on the electrochemical sensor (12); a plurality of the substitute frames (211) and the outer frame (14) are fixedly connected with an extension block (262); the extension block (262) and the shift block (25) are fixedly provided with a mounting port (263); a rotating shaft is rotatably connected in the mounting port (263); a transmission plate (264) is rotatably connected to the rotating shaft corresponding to the shift block (25); and the transmission plate (264) is rotatably connected to the rotating shaft corresponding to the extension block (262).

4. The plot monitoring device for forest and grass carbon sink fixation monitoring according to claim 3, wherein: The guide portion (27) comprises a pair of guide plates (271) fixedly connected to the side wall of the mounting tube (22); the pair of guide plates (271) cooperate with the shifting blocks (25) corresponding to the lifting block (24) to ensure that the shifting blocks (25) move straight up and down; a pair of circular rings (272) are fixedly connected to the side wall of the mounting tube (22); the pair of circular rings (272) are provided with notches (273) that cooperate with the guide plates (271); and a plurality of shifting blocks (25) on the side wall of the mounting tube (22) are located between the pair of circular rings (272) to prevent the shifting blocks (25) from sliding up and down.

5. The plot monitoring device for forest and grass carbon sequestration fixation monitoring according to claim 4, characterized in that: The lifting part (30) includes an electric slide rail (301) arranged inside the mounting cylinder (22). An elevating disc (302) is slidably connected to the electric slide rail (301) through a slider. A round opening (303) is provided on the lifting block (24). An elevating column (304) passing through the round opening (303) is fixedly connected to the elevating disc (302). A cap (305) with a diameter larger than that of the round opening (303) is fixedly connected to the elevating column (304). The disc is elastically connected to the lifting block (24) through a telescopic spring (306).

6. The plot monitoring device for forest and grass carbon sink fixation monitoring according to claim 5, wherein: The rotating part (33) includes a plurality of lever rods (331) fixedly connected to the turntable (32). An inner groove (332) for cooperating with the lever rods (331) is provided at the bottom of the dial block (25).

7. The plot monitoring device for forest and grass carbon sink fixation monitoring according to claim 6, characterized in that: The power part (34) includes a push rod (341) fixedly connected to the cap (305). A support opening is provided on the mounting cylinder (22). The transmission shaft (31) is rotatably connected to the inner wall of the support opening. A support groove (342) is provided on the transmission shaft (31). A plurality of first vertical grooves (343) are provided in the support groove (342). An arc groove (344) is communicated with each of the plurality of first vertical grooves (343). A second vertical groove (345) penetrating the transmission shaft (31) is communicated with the arc groove (344). An outward expansion groove (346) is provided in the second vertical groove (345). A bearing shaft is rotatably connected in the outward expansion groove (346). A stop block (347) is fixedly connected to the bearing shaft. A torsion spring (348) is provided on the bearing shaft. The lower end surface of the stop block (347) abuts against the inner wall of the outward expansion groove (346).

8. The plot monitoring device for forest and grass carbon sink fixation monitoring according to claim 7, characterized in that: The first vertical groove (343), the arc groove (344), and the second vertical groove (345) form a group. The first vertical groove (343) and the second vertical groove (345) between adjacent groups are communicated with each other.

9. The plot monitoring device for forest and grass carbon sink fixation monitoring according to claim 1, characterized in that: The opening part (35) includes a positioning ring (351) fixedly connected to the inner wall of the housing (20). A cover plate (352) cooperating with the positioning ring (351) is provided on the housing (20). The cover plate (352) is fixedly connected to the positioning ring (351) through bolts (353).

10. A plot monitoring method for forest and grass carbon sink fixation monitoring, according to any one of the plot monitoring devices for forest and grass carbon sink fixation monitoring described in 1-9, characterized in that: including, install the support column (10), the bearing column (11), the electrochemical sensor (12) and various components; connect the power supply to allow the electrochemical sensor (12) to intake air; The gas is filtered by the filter net (13) and then enters the bottom of the electrochemical sensor (12) for detection, and the detection result is transmitted; When the filter net (13) is replaced, the electric slide rail (301) is started; The disc moves downward to replace the backup filter net (212) and the filter net (13) through transmission; The electrochemical sensor (12) after replacing the filter net (13) continues to detect.

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