A surface and deep soil respiration measuring device

Abstract

The application belongs to the technical field of measuring equipment, and discloses a kind of ground surface and deep soil respiration measuring device, and its technical key points are: including bottom plate, bottom plate surface four around respectively fixed installation has vertical pole, multiple vertical pole top end common fixed installation has top plate, bottom plate with top plate between being provided with layer board, layer board surface rotationally installed has bearing disc, bottom plate with top plate between being provided with first lifting assembly, bearing disc surface is provided with drilling mechanism, drilling mechanism includes sampling cylinder and rotating assembly, bearing disc surface is provided with respiration detection mechanism, respiration detection mechanism includes carbon dioxide detector, positioning assembly and second lifting assembly, bearing disc surface is provided with and layer board is mutually matched and is clamped, solve the current respiration detection to sampling soil, sampling soil separates from deep soil environment, external air is easy to produce influence on the respiration intensity of sampling soil, lead to the problem of large error of measurement result.

Description

Technical Field

[0001] The present invention relates to the technical field of measuring equipment, in particular to a device for measuring the respiration of surface and deep soil. Background Art

[0002] Measuring soil respiration intensity is considered a measure of the overall activity of soil microorganisms or as one of the indicators for evaluating soil fertility. Therefore, studying the capacity and dynamics of soil carbon pools can help explore issues such as reducing anthropogenic carbon emissions, increasing soil carbon storage, and extending the duration of soil carbon fixation. Small changes in the amount of carbon can have a significant impact on changes in atmospheric carbon dioxide levels, which is of great significance to current research on the carbon cycle and global climate change.

[0003] When measuring the respiration of deep soil, core sampling is usually performed on the soil, and then the sampled soil is tested for respiration. When using this existing measurement method, the sampled soil is separated from the deep soil environment, and the outside air is likely to affect the respiration intensity of the sampled soil, resulting in large errors in the measurement results. Summary of the Invention

[0004] The object of the present invention is to provide a device for measuring surface and deep soil respiration to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A surface and deep soil respiration measuring device comprises a bottom plate, rollers are respectively provided around the bottom wall of the bottom plate, fixing parts are respectively provided on the two opposite side walls of the bottom plate, vertical rods are respectively fixedly installed around the surface of the bottom plate, a top plate is fixedly installed on the top ends of multiple groups of vertical rods, a layer plate is provided between the bottom plate and the top plate, a carrying plate is rotatably installed on the surface of the layer plate, a first lifting component that cooperates with the layer plate is provided between the bottom plate and the top plate, the first lifting component is used to control the layer plate to move in the vertical direction between the bottom plate and the top plate, a drilling mechanism is provided on the surface of the carrying plate, the drilling mechanism includes a sampling barrel and a rotating component, the sampling barrel is rotatably installed on the surface of the carrying plate, a plurality of groups of soil-breaking cones distributed in an annular manner are provided at the bottom end of the sampling barrel, and a bottom plate surface is provided with a supporting plate that cooperates with the sampling barrel The sampling hole of the carrier plate is provided with a rotating component, which is located on the surface of the carrier plate and is connected to the sampling cylinder. The rotating component is used to control the rotation of the sampling cylinder on the surface of the carrier plate. The surface of the carrier plate is provided with a breathing detection mechanism, which includes a carbon dioxide detector, a positioning component and a second lifting component. The positioning component is located below the carrier plate and is connected to the carbon dioxide detector. The second lifting component is located on the surface of the carrier plate and is connected to the positioning component. The second lifting component controls the carbon dioxide detector to move in the vertical direction below the carrier plate by cooperating with the positioning component. The surface of the carrier plate is provided with a clamping part that cooperates with the layer plate. The clamping part cooperates with the carrier plate to exchange the positions of the sampling cylinder and the carbon dioxide detector in the vertical direction.

[0007] As a further solution of the present invention: the first lifting assembly includes multiple groups of threaded rods rotatably installed between the bottom plate and the top plate, the threaded rods are threadedly connected to the layer plates, synchronous gear discs are fixedly installed on the surface of the threaded rods, and the multiple groups of synchronous gear discs are commonly connected to a synchronous belt, and the top end of a group of threaded rods extends to the surface of the top plate and is connected to a first motor.

[0008] As a further solution of the present invention: the rotating assembly includes a gear ring fixedly mounted on the surface of the sampling cylinder, a bracket fixedly mounted on the surface of the carrier plate, a second motor fixedly mounted on the surface of the bracket, a transmission gear disc fixedly mounted on the output shaft of the second motor, and the transmission gear disc is meshingly connected to the gear ring.

[0009] As a further solution of the present invention: the positioning assembly includes an upper sealing disk, a plurality of connecting rods are fixedly installed on the bottom wall of the upper sealing disk, a lower sealing disk is fixedly installed on the bottom ends of the plurality of connecting rods, the carbon dioxide detector is fixedly installed on the surface of the lower sealing disk, and the diameters of the upper sealing disk and the lower sealing disk are the same as the diameter of the sampling tube.

[0010] As a further solution of the present invention: the second lifting assembly includes two groups of relatively distributed vertical plates fixedly installed on the surface of the carrying plate, a rotating column is rotatably installed between the two groups of vertical plates, a winding wheel is fixedly installed on the surface of the rotating column, one end of the rotating column extends to the outside of the vertical plate and is connected to a third motor, a pulling rope is wound on the surface of the winding wheel, a through hole is opened on the surface of the carrying plate below the winding wheel, and the end of the pulling rope away from the winding wheel passes through the through hole and extends to the bottom of the carrying plate and is connected to the upper sealing plate.

[0011] As a further solution of the present invention: the clamping member includes a clamping rod rotatably installed on the surface of the carrier plate, and the surface of the layer plate is provided with two groups of clamping holes that cooperate with the clamping rod, and the two groups of clamping holes are respectively located on both sides of the carrier plate.

[0012] As a further solution of the present invention: a limiting member is provided on the inner wall of the sampling barrel, and the limiting member includes a plurality of groups of annularly distributed transverse grooves opened at different depths on the inner wall of the sampling barrel, and a limiting rod is rotatably installed in the transverse groove, and the limiting rod is made of magnetic material, and a magnetic sheet that cooperates with the limiting rod is fixedly installed on the side wall of the transverse groove.

[0013] As a further solution of the present invention: an opening is provided at the top of the sampling tube, a push rod is slidably installed on the surface of the top plate along the vertical direction, a top pressure plate is fixedly installed on the top of the push rod, and a bottom pressure plate is fixedly installed on the bottom of the push rod.

[0014] Compared with the prior art, the present invention has the following advantages: by providing a clamping member that cooperates with the carrier plate, the relative position of the sampling tube and the carbon dioxide detector can be easily adjusted; by providing a second lifting assembly that cooperates with the positioning assembly, the carbon dioxide detector can be easily moved into the soil sample core hole and the soil respiration intensity at the corresponding depth can be detected and measured, effectively avoiding external air interference and improving measurement accuracy. This solves the current problem of respiration detection of sampled soil, where the sampled soil is separated from the deep soil environment, and the external air easily affects the respiration intensity of the sampled soil, resulting in large errors in the measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the three-dimensional structure of a surface and deep soil respiration measurement device provided in an embodiment of the present invention Figure 1 .

[0016] Figure 2 Schematic diagram of the three-dimensional structure of a surface and deep soil respiration measurement device provided in an embodiment of the present invention Figure 2 .

[0017] Figure 3 This is a schematic diagram of the main structure of a surface and deep soil respiration measurement device provided in an embodiment of the present invention.

[0018] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of A in the figure.

[0019] Figure 5 This is a schematic diagram of a middle plate and its connection structure of a surface and deep soil respiration measurement device provided in an embodiment of the present invention.

[0020] Figure 6 This is a schematic diagram of a carbon dioxide detector and its connection structure in a surface and deep soil respiration measurement device provided in an embodiment of the present invention.

[0021] Figure 7 The figure is a schematic top view of the structure of a sampling tube in a surface and deep soil respiration measurement device provided in an embodiment of the present invention.

[0022] Among them: 1-bottom plate, 11-roller, 12-fixed part, 2-vertical rod, 3-top plate, 4-layer plate, 41-carrying plate, 5-first lifting component, 51-threaded rod, 52-synchronous gear disc, 53-synchronous belt, 54-first motor, 6-drilling mechanism, 61-sampling cylinder, 611-breaking cone, 612-sampling hole, 62-rotating component, 621-gear ring, 622-bracket, 623-second motor, 624-transmission gear disc, 7-breathing detection mechanism, 71-second Carbon oxide detector, 72-positioning assembly, 721-upper sealing plate, 722-lower sealing plate, 723-connecting rod, 73-second lifting assembly, 731-vertical plate, 732-rotating column, 733-winding wheel, 734-third motor, 735-pulling rope, 736-through hole, 8-clamping part, 81-clamping rod, 82-clamping hole, 9-limiting part, 91-transverse groove, 92-magnetic sheet, 93-limiting rod, 10-push rod, 101-top pressure plate, 102-bottom pressure plate. DETAILED DESCRIPTION

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0024] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0025] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 5 、 Figure 6As shown, it is a structure view of a surface and deep soil respiration measuring device provided by one embodiment of the present application, comprising a bottom plate 1, the bottom wall of the bottom plate 1 is provided with a plurality of rollers 11 around, the opposite two side walls of the bottom plate 1 are provided with fixing pieces 12 respectively, the surface of the bottom plate 1 is fixedly installed with a plurality of vertical rods 2 around, the top ends of the vertical rods 2 are commonly fixedly installed with a top plate 3, a layer plate 4 is arranged between the bottom plate 1 and the top plate 3, the surface of the layer plate 4 is rotatably installed with a bearing disc 41, a first lifting assembly 5 matched with the layer plate 4 is arranged between the bottom plate 1 and the top plate 3, the first lifting assembly 5 is used to control the layer plate 4 to move along the vertical direction between the bottom plate 1 and the top plate 3, the surface of the bearing disc 41 is provided with a drilling mechanism 6, the drilling mechanism 6 comprises a sampling cylinder 61 and a rotating assembly 62, the sampling cylinder 61 is rotatably installed on the surface of the bearing disc 41, the bottom end of the sampling cylinder 61 is provided with a plurality of breaking soil cones 611 distributed in a ring shape, the surface of the bottom plate 1 is provided with a sampling hole 612 matched with the sampling cylinder 61, the rotating assembly 62 is located on the surface of the bearing disc 41 and connected with the sampling cylinder 61, the rotating assembly 62 is used to control the sampling cylinder 61 to rotate on the surface of the bearing disc 41, the surface of the bearing disc 41 is provided with a respiration detection mechanism 7, the respiration detection mechanism 7 comprises a carbon dioxide detector 71, a positioning assembly 72 and a second lifting assembly 73, the positioning assembly 72 is located below the bearing disc 41 and connected with the carbon dioxide detector 71, the second lifting assembly 73 is located on the surface of the bearing disc 41 and connected with the positioning assembly 72, the second lifting assembly 73 controls the carbon dioxide detector 71 to move along the vertical direction below the bearing disc 41 in a matched manner with the positioning assembly 72, the surface of the bearing disc 41 is provided with a clamping piece 8 matched with the layer plate 4, the clamping piece 8 is used to exchange the positions of the sampling cylinder 61 and the carbon dioxide detector 71 in the vertical direction in a matched manner with the bearing disc 41.

[0026] The clamping member 8 positions the carrier plate 41 on the surface of the layer plate 4. At this time, the sampling tube 61 is aligned with the sampling hole 612 in the vertical direction, and the equipment is pushed to the position to be detected. The rotating component 62 controls the rotation of the sampling tube 61. The first lifting component 5 controls the layer plate 4 and the carrier plate 41 to move vertically downward. The carrier plate 41 drives the sampling tube 61 to move downward synchronously. The sampling tube 61 rotates and is inserted into the deep layer of the soil when moving downward. When the sampling tube 61 moves to the lowest position, the first lifting component 5 controls the layer plate 4 and the carrier plate 41 to move upward. The carrier plate 41 drives the sampling tube 61 to move upward synchronously. The inner cavity of the sampling tube 61 carries the soil sample and moves upward synchronously to form a soil sample core hole on the surface. The position of the carrier plate 41 is adjusted on the surface, so that the positions of the sampling tube 61 and the carbon dioxide detector 71 are swapped, so that the carbon dioxide detector 71 is aligned with the sampling hole 612 in the vertical direction, and the second lifting component 73 cooperates with the positioning component 72 to control the carbon dioxide detector 71 to move vertically downward into the soil sample core hole. When the carbon dioxide detector 71 is located at the top of the soil sample core hole, the positioning component 72 cooperates with the carbon dioxide detector 71 to detect the respiration intensity of the surface soil. The carbon dioxide detector 71 continues to move downward and is located at different depths in the soil sample core hole. The positioning component 72 cooperates with the carbon dioxide detector 71 to detect the respiration intensity of the soil at different depths.

[0027] like Figure 1 、 Figure 2 、 Figure 3 As shown, as a preferred embodiment of the present invention, the first lifting assembly 5 includes multiple groups of threaded rods 51 rotatably installed between the bottom plate 1 and the top plate 3, the threaded rods 51 are threadedly connected to the layer plate 4, and a synchronous gear plate 52 is fixedly installed on the surface of the threaded rod 51. The multiple groups of synchronous gear plates 52 are commonly connected to a synchronous belt 53, and the top end of a group of threaded rods 51 extends to the surface of the top plate 3 and is connected to a first motor 54.

[0028] When in use, the first motor 54 drives a group of threaded rods 51 to rotate and then drives the synchronous gear plate 52 to rotate. Multiple groups of synchronous gear plates 52 cooperate with the synchronous belt 53 to drive multiple groups of threaded rods 51 to rotate synchronously. When rotating, the multiple groups of threaded rods 51 push the layer plate 4 to move in the vertical direction, and the layer plate 4 drives the supporting plate 41 to move synchronously, so that the height of the sampling tube 61 can be conveniently adjusted.

[0029] like Figure 1 、 Figure 4 、 Figure 5As shown, as a preferred embodiment of the present invention, the rotating assembly 62 includes a ring gear 621 fixedly mounted on the surface of the sampling tube 61, a bracket 622 fixedly mounted on the surface of the supporting plate 41, a second motor 623 fixedly mounted on the surface of the bracket 622, and a transmission gear disc 624 fixedly mounted on the output shaft of the second motor 623, and the transmission gear disc 624 is meshed and connected with the ring gear 621.

[0030] When it is necessary to drill core samples of the soil, the second motor 623 is started, and the second motor 623 drives the transmission gear plate 624 to rotate. The transmission gear plate 624 engages with the gear ring 621 for transmission, which can drive the sampling tube 61 to rotate on the surface of the carrier plate 41. The rotating sampling tube 61 moves downward and can easily drill deep into the soil.

[0031] like Figure 3 、 Figure 5 、 Figure 6 As shown, as a preferred embodiment of the present invention, the positioning assembly 72 includes an upper sealing disk 721, and multiple groups of connecting rods 723 are fixedly installed on the bottom wall of the upper sealing disk 721, and the bottom ends of the multiple groups of connecting rods 723 are commonly fixedly installed with a lower sealing disk 722, and the carbon dioxide detector 71 is fixedly installed on the surface of the lower sealing disk 722, and the diameters of the upper sealing disk 721 and the lower sealing disk 722 are the same as the diameter of the sampling tube 61.

[0032] The second lifting assembly 73 suspends and supports the upper sealing plate 721. When detecting the respiration intensity of the soil, the second lifting assembly 73 controls the upper sealing plate 721, the lower sealing plate 722 and the carbon dioxide detector 71 to move downward synchronously and then pass through the sampling hole 612 and insert into the soil sample core hole. The upper sealing plate 721 and the lower sealing plate 722 cooperate with each other to protect the carbon dioxide detector 71 at the upper and lower ends. The carbon dioxide detector 71 can accurately measure the respiration intensity of the soil at the corresponding depth.

[0033] like Figure 3 、 Figure 5 、 Figure 6 As shown, as a preferred embodiment of the present invention, the second lifting assembly 73 includes two groups of relatively distributed vertical plates 731 fixedly installed on the surface of the supporting plate 41, and a rotating column 732 is rotatably installed between the two groups of vertical plates 731. A winding wheel 733 is fixedly installed on the surface of the rotating column 732, and one end of the rotating column 732 extends to the outside of the vertical plate 731 and is connected to a third motor 734. A pulling rope 735 is wound on the surface of the winding wheel 733, and a through hole 736 is opened on the surface of the supporting plate 41 below the winding wheel 733, and the pulling rope 735 extends through the through hole 736 with one end away from the winding wheel 733 to the bottom of the supporting plate 41 and is connected to the upper sealing plate 721.

[0034] The pulling rope 735 suspends and supports the upper sealing disk 721. When the sampling tube 61 is drilling core samples, the upper sealing disk 721 and the bottom wall of the supporting disk 41 fit together. When it is necessary to detect the respiration intensity of the soil, the third motor 734 drives the rotating column 732 to rotate and then drives the winding wheel 733 to rotate. The winding wheel 733 releases the pulling rope 735 when rotating. The pulling rope 735 can control the upper sealing disk 721, the lower sealing disk 722 and the carbon dioxide detector 71 to move downward synchronously and then be inserted into the soil sample core hole.

[0035] like Figure 3 、 Figure 4 、 Figure 5 As shown, as a preferred embodiment of the present invention, the clamping member 8 includes a clamping rod 81 rotatably installed on the surface of the carrier plate 41, and two groups of clamping holes 82 that cooperate with the clamping rod 81 are opened on the surface of the layer plate 4, and the two groups of clamping holes 82 are respectively located on both sides of the carrier plate 41.

[0036] The clamping rod 81 is inserted into a group of clamping holes 82, and the clamping rod 81 and the clamping holes 82 cooperate with each other. The position of the carrier plate 41 can be fixed on the surface of the layer plate 4. At this time, the sampling tube 61 is aligned with the sampling hole 612. At this time, core sampling of the soil can be carried out. After the core sampling is completed and the sampling tube 61 moves to the top of the bottom plate 1, the clamping rod 81 is rotated to the outside of the clamping hole 82. At this time, the carrier plate 41 can be rotated on the surface of the layer plate 4. After the carrier plate 41 is rotated one hundred and eighty degrees, the carbon dioxide detector 71 is aligned with the sampling hole 612 along the vertical defense line. The clamping rod 81 is inserted into another group of clamping holes 82, and the position of the carrier plate 41 can be fixed again.

[0037] like Figure 1 、 Figure 2 、 Figure 7 As shown, as a preferred embodiment of the present invention, a limiting member 9 is provided on the inner wall of the sampling tube 61, and the limiting member 9 includes a plurality of groups of annularly distributed transverse grooves 91 opened at different depths on the inner wall of the sampling tube 61, and a limiting rod 93 is rotatably installed in the transverse groove 91, and the limiting rod 93 is made of magnetic material, and a magnetic sheet 92 that cooperates with the limiting rod 93 is fixedly installed on the side wall of the transverse groove 91.

[0038] When the sampling cylinder 61 moves downward for coring sampling, the sampling cylinder 61 rotates counterclockwise, at this time, the soil in the inner cavity of the sampling cylinder 61 exerts a pushing force on the limiting rod 93, at this time, the limiting rod 93 is in the horizontal groove 91, and the limiting rod 93 does not interfere with the entire coring sampling process, when the sampling cylinder 61 moves to the lowest position and then needs to be moved upward to take out the core sample, the sampling cylinder 61 first rotates clockwise by a certain angle, the magnetic sheet 92 exerts a pushing force on the limiting rod 93, and when the sampling cylinder 61 reverses rotation, the limiting rod 93 will rotate to the outside of the horizontal groove 91 and be inserted into the core sample in the inner cavity of the sampling cylinder 61, when the sampling cylinder 61 moves vertically upward, the multiple groups of limiting rods 93 can provide upward pushing force to the core sample in the inner cavity of the sampling cylinder 61, effectively avoiding the core sample from falling off when the sampling cylinder 61 moves upward.

[0039] As shown in Figure 1 , Figure 3 , as a preferred embodiment of the present application, the top end of the sampling cylinder 61 is provided with an opening, the surface of the top plate 3 is vertically slidingly installed with a push rod 10, the top end of the push rod 10 is fixedly installed with a top pressing plate 101, and the bottom end of the push rod 10 is fixedly installed with a bottom pressing plate 102.

[0040] After coring sampling, the sampling cylinder 61 moves upward above the bottom plate 1, at this time, the bottom pressing plate 102 is inserted into the sampling cylinder 61, the top pressing plate 101 is pressed downward by hand, and the top pressing plate 101 cooperates with the push rod 10 to exert a pushing force on the bottom pressing plate 102. The bottom pressing plate 102 synchronously exerts a downward pushing force on the core sample in the inner cavity of the sampling cylinder 61, so that the core sample can be conveniently taken out from the sampling cylinder 61, and the sampling cylinder 61 can continue to coring sampling.

[0041] The working principle of the present invention is as follows: the clamping rod 81 is inserted into a group of clamping holes 82, and the clamping rod 81 and the clamping hole 82 cooperate with each other, and the position of the carrier plate 41 can be fixed on the surface of the layer plate 4. At this time, the sampling tube 61 is aligned with the sampling hole 612, and the equipment is pushed to the position to be detected. The second motor 623 is started, and the second motor 623 drives the transmission gear plate 624 to rotate. The transmission gear plate 624 engages with the gear ring 621 for transmission, which can drive the sampling tube 61 to rotate on the surface of the carrier plate 41. The first motor 54 drives a group of threaded rods 51 to rotate and then drives the synchronous gear plate 52 to rotate. Multiple groups of synchronous gear plates 52 cooperate with the synchronous belt 53 to drive multiple groups of threaded rods 51 to rotate synchronously. When rotating, the multiple groups of threaded rods 51 push the layer plate 4 to move in the vertical direction, and the layer plate 4 drives the carrier plate 41 to move synchronously, so that the height of the sampling tube 61 can be conveniently adjusted. The carrier plate 41 drives the sampling barrel 61 downward in sync, allowing the rotating sampling barrel 61 to drill deep into the soil. When the sampling barrel 61 reaches its lowest position, the first lifting assembly 5 controls the deck 4 and the carrier plate 41 to move upward, driving the sampling barrel 61 upward in sync with the carrier plate 41. The inner cavity of the sampling barrel 61, carrying the soil sample, moves upward in sync, forming a soil sample core hole on the surface.

[0042] Rotate the connecting rod 81 to the outside of the connecting hole 82. At this time, the carrier plate 41 can rotate on the surface of the layer plate 4. After the carrier plate 41 rotates 180 degrees, the carbon dioxide detector 71 is aligned with the sampling hole 612 along the vertical defense line. Insert the connecting rod 81 into another set of connecting holes 82 to fix the position of the carrier plate 41 again. When the respiration intensity of the soil needs to be tested, the third motor 734 drives the rotating column 732 to rotate and then drives the winding wheel 733 to rotate. When the winding wheel 733 rotates, it releases the pulling rope 735. The pulling rope 735 can control the upper sealing plate 721, the lower sealing plate 722 and the carbon dioxide detector 71 to move downward synchronously and then be inserted into the soil sample core hole. The upper sealing plate 721 and the lower sealing plate 722 cooperate with each other to seal the soil sample core holes at the upper and lower ends of the carbon dioxide detector 71. When the carbon dioxide detector 71 is located at the top of the soil sample core hole, the respiration intensity of the surface soil can be detected. When the carbon dioxide detector 71 is in the inner cavity of the soil sample core hole, the respiration intensity of the soil at the corresponding depth can be accurately measured.

[0043] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A surface and deep soil respiration measuring device, comprising a base plate, rollers disposed around the bottom wall of the base plate, fixing members disposed on opposite side walls of the base plate, vertical rods fixedly mounted around the surface of the base plate, and a top plate fixedly mounted on the tops of multiple groups of vertical rods, characterized in that: A layer plate is provided between the bottom plate and the top plate, a carrying plate is rotatably installed on the surface of the layer plate, a first lifting assembly that cooperates with the layer plate is provided between the bottom plate and the top plate, the first lifting assembly is used to control the layer plate to move in the vertical direction between the bottom plate and the top plate, a drilling mechanism is provided on the surface of the carrying plate, the drilling mechanism includes a sampling barrel and a rotating assembly, the sampling barrel is rotatably installed on the surface of the carrying plate, a plurality of groups of annularly distributed earth-breaking cones are provided at the bottom end of the sampling barrel, a sampling hole that cooperates with the sampling barrel is opened on the surface of the bottom plate, the rotating assembly is located on the surface of the carrying plate and is connected to the sampling barrel, and the rotating assembly is used to control the sampling barrel on the surface of the carrying plate Rotation, a respiratory detection mechanism is provided on the surface of the carrying plate, and the respiratory detection mechanism includes a carbon dioxide detector, a positioning assembly and a second lifting assembly. The positioning assembly is located below the carrying plate and is connected to the carbon dioxide detector. The second lifting assembly is located on the surface of the carrying plate and is connected to the positioning assembly. The second lifting assembly controls the carbon dioxide detector to move in the vertical direction below the carrying plate by cooperating with the positioning assembly. The surface of the carrying plate is provided with a clip that cooperates with the layer plate. The clip is used to exchange the positions of the sampling tube and the carbon dioxide detector in the vertical direction by cooperating with the carrying plate.

2. A surface and deep soil respiration measuring device according to claim 1, characterized in that: The first lifting assembly includes multiple groups of threaded rods rotatably installed between the bottom plate and the top plate, the threaded rods are threadedly connected to the layer plates, and synchronous gear plates are fixedly installed on the surface of the threaded rods. The multiple groups of synchronous gear plates are commonly connected to a synchronous belt, and the top end of a group of threaded rods extends to the surface of the top plate and is connected to the first motor.

3. The surface and deep soil respiration measuring device according to claim 1, characterized in that: The rotating assembly includes a gear ring fixedly mounted on the surface of the sampling cylinder, a bracket fixedly mounted on the surface of the carrier plate, a second motor fixedly mounted on the surface of the bracket, a transmission gear disk fixedly mounted on the output shaft of the second motor, and the transmission gear disk is meshed with the gear ring.

4. The surface and deep soil respiration measuring device according to claim 1, characterized in that: The positioning assembly includes an upper sealing disk, and multiple groups of connecting rods are fixedly installed on the bottom wall of the upper sealing disk. The bottom ends of the multiple groups of connecting rods are commonly fixedly installed with a lower sealing disk. The carbon dioxide detector is fixedly installed on the surface of the lower sealing disk. The diameters of the upper sealing disk and the lower sealing disk are the same as the diameter of the sampling tube.

5. The surface and deep soil respiration measuring device according to claim 4, characterized in that: The second lifting assembly includes two groups of relatively distributed vertical plates fixedly installed on the surface of the supporting plate, a rotating column is rotatably installed between the two groups of vertical plates, a winding wheel is fixedly installed on the surface of the rotating column, one end of the rotating column extends to the outside of the vertical plate and is connected to a third motor, a pulling rope is wound on the surface of the winding wheel, a through hole is opened on the surface of the supporting plate below the winding wheel, and an end of the pulling rope away from the winding wheel passes through the through hole and extends to the bottom of the supporting plate and is connected to the upper sealing plate.

6. The surface and deep soil respiration measuring device according to claim 1, characterized in that: The clamping member includes a clamping rod rotatably mounted on the surface of the carrier plate. The surface of the layer plate is provided with two groups of clamping holes that cooperate with the clamping rod. The two groups of clamping holes are respectively located on both sides of the carrier plate.

7. The surface and deep soil respiration measuring device according to claim 1, characterized in that: A limiting member is provided on the inner wall of the sampling barrel, and the limiting member includes a plurality of groups of circularly distributed transverse grooves opened at different depths on the inner wall of the sampling barrel. A limiting rod is rotatably installed in the transverse groove, and the limiting rod is made of magnetic material. A magnetic sheet that cooperates with the limiting rod is fixedly installed on the side wall of the transverse groove.

8. The surface and deep soil respiration measuring device according to claim 1, characterized in that: The top of the sampling tube is provided with an opening, a push rod is slidably mounted on the surface of the top plate in a vertical direction, a top pressure plate is fixedly mounted on the top of the push rod, and a bottom pressure plate is fixedly mounted on the bottom of the push rod.

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