Soil respiration measuring instrument

Abstract

The invention provides a soil respiration measuring instrument, and relates to the technical field of soil measuring instruments, the soil respiration measuring instrument comprises a base, the left end and the right end of the base are respectively provided with a connecting plate, the upper end face of the base is provided with a fixing box and a supporting plate, the main body of the supporting plate is of a rectangular plate-shaped structure, and the upper end face of the supporting plate is fixedly provided with a top plate. According to the invention, when the respiration intensity of soil at different depths is monitored, the lower end part of one extension tube can be in threaded connection with the upper end of the interior of the other extension tube, so that two or more extension tubes can be butted together, and the respiration intensity of the soil at different depths is conveniently monitored; the problems that an existing respiration measuring instrument is not convenient to monitor soil layers with different depths, some soil contains stones or some soil layers are hard, and workers are strenuous when drilling and excavating the areas are solved.

Description

Technical Field

[0001] The invention relates to the technical field of soil measuring instruments, and in particular to a soil respiration measuring instrument. Background Art

[0002] Soil respiration refers to the process by which soil produces and releases carbon dioxide into the atmosphere. By monitoring soil respiration and its related numbers, we can estimate the response of roots and soil microorganisms to climate change, and understand information such as soil microbial activity and the decomposition rate of organic matter.

[0003] However, the existing soil respiration measuring devices still have the following two shortcomings in use: First, in order to comprehensively monitor the respiration intensity of the soil, it is necessary to monitor the respiration of soil layers at different depths, but it is inconvenient for workers to monitor soil layers at different depths; Secondly, some soils contain rocks or some layers of soil are hard, making it difficult for workers to drill and excavate in these areas. Summary of the invention

[0004] In view of this, the present invention provides a soil respirometer to solve the problems that current respirometers are inconvenient when monitoring soil layers at different depths, and that some soils contain stones or some soil layers are relatively hard, making it more difficult for workers to drill and excavate in these areas.

[0005] The present invention provides a purpose and function of a soil respiration measuring instrument, which specifically comprises: a base; A connecting plate is installed at the left and right ends of the base respectively, and a fixing box is installed on the upper end surface of the base; A support plate, wherein the main body of the support plate is a rectangular plate-shaped structure, and a top plate is fixedly mounted on the upper end surface of the support plate; A lifting plate, wherein a slot is provided in the middle of the front end surface of the lifting plate, a limiting cylinder is fixedly installed on the surface of the lifting plate, and two transverse sliding grooves are also provided on the surface of the lifting plate, and the rear end surface of the lifting plate is in contact with the support plate; A measuring device, wherein two supporting legs are fixedly mounted on the lower end surface of the measuring device, the measuring device is located above the lifting plate, and a connecting wire is fixedly mounted on the lower end surface of the measuring device; A fixing plate, wherein two sets of the fixing plates are provided and the fixing plates are mounted on the lower end surfaces of the supporting legs; A first motor, wherein the first motor is fixedly mounted on the upper end surface of the lifting plate, and a driving shaft is drivingly connected to the lower end surface of the first motor; A limit plate, wherein a limit hole is provided on the surface of the limit plate, and three limit blocks are provided on the front end surface of the limit plate; An extension tube, wherein the inner upper end surface of the extension tube is provided with a groove, the surface of the groove is provided with a thread, and the lower position of the outer end surface of the extension tube is provided with a notch, and the outer side of the notch is provided with a thread; A fixed tube, wherein the upper end surface of the inner part of the fixed tube is provided with a thread, and the lower end surface of the fixed tube is fixedly mounted with six connecting rods, and the six connecting rods are arranged in a ring structure; A base plate, wherein the base plate body is a circular plate structure, and a propeller is fixedly mounted on the lower end surface of the base plate; The second motor is fixedly installed inside the fixed box, the upper end surface of the second motor is transmission-connected to the driving screw, and the upper end surface of the driving screw is rotationally connected to the top plate.

[0006] Furthermore, three vertical sliding grooves are formed on the surface of the support plate, and three limiting blocks on the front end surface of the limiting plate are respectively clamped in the three vertical sliding grooves, and the limiting blocks are fixedly connected to the lifting plate.

[0007] Furthermore, two limiting rods are fixedly mounted on the lower end surface of the top plate, the lower end surfaces of the limiting rods are fixedly connected to the base, and the limiting rods are clamped in the limiting holes on the surface of the limiting plate.

[0008] Furthermore, an empty groove is provided inside the driving shaft, a thread is provided below the outer end surface of the driving shaft, the extension tube is threadedly connected to the driving shaft, and a connecting tube is installed outside the driving shaft.

[0009] Furthermore, the upper end surface of the fixed tube is threadedly connected to the extension tube, and the connecting rod at the lower end of the fixed tube is fixedly connected to the base plate.

[0010] Furthermore, a carbon dioxide sensor is fixedly mounted at the end of the connecting wire, the outer end of the carbon dioxide sensor is clamped in the connecting tube, and the front end of the carbon dioxide sensor is located in the empty groove inside the driving shaft.

[0011] Furthermore, a fastening block is mounted on the inner sliding card of the transverse slide slot, and a fastening screw is fixedly mounted on the upper end surface of the fastening block.

[0012] Furthermore, the fastening screw is clamped in a through hole on the surface of the fixing plate, and a nut is connected to the surface of the fastening screw.

[0013] The present invention provides a soil respiration measuring instrument, which has the following beneficial effects: In the present invention, by setting the threaded connection between the driving screw and the limiting cylinder, the driving screw can drive the lifting plate to move up and down when it rotates. In this process, since the limiting block is clamped in the vertical slide groove on the surface of the support plate, the limiting block can play a limiting role, and the limiting rod is slidably clamped in the limiting hole on the surface of the limiting plate, so that the limiting plate and the lifting plate will not swing left and right when moving up and down, which can ensure that the limiting plate and the lifting plate can move vertically up and down.

[0014] In addition, the fixed tube and the base plate are connected by six connecting rods. There is a gap between the fixed tube and the base plate. At this time, the carbon dioxide produced by the microbial activity deep in the soil will enter the extension tube, and the upper end of the extension tube is threadedly connected to the drive shaft, so that a space can be formed inside the extension tube. The carbon dioxide sensor is located in the empty groove inside the drive shaft, so that the carbon dioxide sensor can monitor the carbon dioxide concentration inside the extension tube. The carbon dioxide sensor is connected to the measuring device through a connecting wire, so that the measuring device can display the changes in the carbon dioxide concentration inside the extension tube, thereby judging the respiration intensity of the soil.

[0015] In addition, a groove is provided on the inner upper end surface of the extension tube, a thread is provided on the surface of the groove, a notch is provided at the lower position of the outer end surface of the extension tube, and a thread is provided on the outside of the notch. When monitoring the respiration intensity of soil at different depths, the lower end portion of the extension tube can be threadedly connected to the inner upper end of another extension tube, so that two or more extension tubes can be connected together, which is convenient for monitoring the respiration intensity of soil at different depths.

[0016] In addition, when installing the measuring instrument, the two fastening blocks can be respectively clamped in the horizontal slide groove, and then the fastening screws on the upper ends of the fastening blocks can be clamped in the through holes on the surface of the fixed plate. After tightening the nuts on the surface of the fastening screws, the fixed plate can be fixed to the upper end surface of the lifting plate, thereby facilitating the workers to disassemble and install the measuring instrument. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture: Figure 1 It is a schematic diagram of the overall device structure of the present invention; Figure 2 It is a schematic diagram of the cross-sectional structure of the extension tube of the present invention; Figure 3 It is a schematic diagram of the connection structure between the lifting plate and the first motor of the present invention; Figure 4 It is a schematic diagram of the structure of the measuring device and the supporting legs of the present invention; Figure 5 It is a schematic diagram of the structure of the second motor and the driving screw of the present invention; Figure 6 It is a schematic diagram of the base structure of the present invention; Figure 7It is a schematic diagram of the connection structure between the limit plate and the lifting plate of the present invention; Figure 8 It is a schematic diagram of the structure of the substrate and the propeller of the present invention; List of reference numerals: 1. Base; 101. Connecting plate; 102. Fixing box; 2. Support plate; 201. Top plate; 2011. Limit rod; 202. Vertical slide; 3. Lifting plate; 301. Limit cylinder; 302. Slot; 303. Horizontal slide; 4. Measuring device; 401. Support leg; 402. Connecting wire; 403. Carbon dioxide sensor; 5. Fixing plate; 501. Through hole; 6. First motor; 601. Drive shaft; 6011. Empty slot; 6012. Connecting pipe; 7. Limiting plate; 701. Limiting block; 702. Limiting hole; 8. Extension pipe; 9. Fixing pipe; 901. Connecting rod; 10. Base plate; 1001. Propeller; 11. Second motor; 1101. Drive screw; 12. Fastening block; 1201. Fastening screw. DETAILED DESCRIPTION

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of specific embodiments of the present invention.

[0021] Example 1: Please refer to Figures 1 to 8 As shown: The present invention provides a soil respiration measuring instrument, comprising a base 1; A connecting plate 101 is installed at the left and right ends of the base 1, and a fixing box 102 is installed on the upper end surface of the base 1; The support plate 2 is a rectangular plate-shaped structure, and a top plate 201 is fixedly mounted on the upper end surface of the support plate 2; The lifting plate 3 has a slot 302 in the middle of the front end surface of the lifting plate 3, a limiting cylinder 301 is fixedly installed on the surface of the lifting plate 3, and two transverse sliding grooves 303 are also provided on the surface of the lifting plate 3, and the rear end surface of the lifting plate 3 is in contact with the support plate 2; The measuring device 4 has two supporting legs 401 fixedly mounted on its lower end surface. The measuring device 4 is located above the lifting plate 3. A connecting wire 402 is fixedly mounted on its lower end surface. The fixing plate 5 is provided with two groups, and the fixing plate 5 is installed on the lower end surface of the supporting leg 401; The first motor 6 is fixedly mounted on the upper end surface of the lifting plate 3, and the lower end surface of the first motor 6 is drivingly connected to a driving shaft 601; The limiting plate 7 has a limiting hole 702 on its surface and three limiting blocks 701 on its front end surface; An extension tube 8, wherein a groove is formed on the inner upper end surface of the extension tube 8, a thread is formed on the surface of the groove, a notch is formed at the lower position of the outer end surface of the extension tube 8, and a thread is formed on the outside of the notch; A fixed tube 9, wherein the inner upper end surface of the fixed tube 9 is provided with threads, and six connecting rods 901 are fixedly installed on the lower end surface of the fixed tube 9, and the six connecting rods 901 are arranged in a ring structure; The substrate 10 has a circular plate structure, and a propeller 1001 is fixedly mounted on the lower end surface of the substrate 10; The second motor 11 is fixedly installed inside the fixed box 102. The upper end surface of the second motor 11 is transmission-connected to the driving screw 1101. The upper end surface of the driving screw 1101 is rotationally connected to the top plate 201. The driving screw 1101 is threadedly connected to the limiting cylinder 301. The driving screw 1101 is threadedly connected to the limiting cylinder 301.

[0022] Among them, an empty groove 6011 is opened inside the driving shaft 601, a thread is opened at the lower position of the outer end surface of the driving shaft 601, the extension tube 8 is threadedly connected to the driving shaft 601, and a connecting tube 6012 is installed on the outside of the driving shaft 601. During use, a groove is opened on the inner upper end surface of the extension tube 8, and a thread is opened on the surface of the groove. A notch is opened at the lower position of the outer end surface of the extension tube 8, and a thread is opened on the outside of the notch. When monitoring the breathing intensity of soil at different depths, the lower end part of the extension tube 8 can be threadedly connected to the inner upper end of another extension tube 8, so that two or more extension tubes 8 can be connected together, which is convenient for monitoring the breathing intensity of soil at different depths.

[0023] Among them, the upper end surface of the fixed tube 9 is threadedly connected to the extension tube 8, and the connecting rod 901 at the lower end of the fixed tube 9 is fixedly connected to the base plate 10. During use, a propeller 1001 is installed at the lower end of the base plate 10. The main body of the propeller 1001 is a spiral structure, so that after the first motor 6 is started, the drive shaft 601, the extension tube 8, the fixed tube 9 and the base plate 10 can rotate at the same time, and when the propeller 1001 at the lower end of the base plate 10 rotates, it is convenient for the extension tube 8 and the fixed tube 9 to penetrate deep into the soil.

[0024] Among them, a carbon dioxide sensor 403 is fixedly installed at the end of the connecting wire 402, and the outer end of the carbon dioxide sensor 403 is clamped in the connecting pipe 6012. The front end of the carbon dioxide sensor 403 is located in the empty groove 6011 inside the driving shaft 601. In use, when the fixed tube 9 is drilled to the specified depth, the fixed tube 9 and the base plate 10 are connected by six connecting rods 901. There is a gap between the fixed tube 9 and the base plate 10. At this time, the carbon dioxide generated by the microbial activity deep in the soil will enter the extension tube 8, and the upper end of the extension tube 8 is threadedly connected to the driving shaft 601, so that a space can be formed inside the extension tube 8. The carbon dioxide sensor 403 is located in the empty groove 6011 inside the driving shaft 601, so that the carbon dioxide sensor 403 can monitor the carbon dioxide concentration inside the extension tube 8, and the carbon dioxide sensor 403 is connected to the measuring device 4 through the connecting wire 402, so that the measuring device 4 can display the changes in the carbon dioxide concentration inside the extension tube 8, thereby judging the respiration intensity of the soil.

[0025] Embodiment 2: The present invention provides a soil respiration measuring instrument, based on the embodiment 1, such as Figure 1-Figure 8 As shown, it also includes: three vertical slide grooves 202 are opened on the surface of the support plate 2, three limit blocks 701 on the front end surface of the limit plate 7 are respectively clamped in the three vertical slide grooves 202, the limit blocks 701 are fixedly connected to the lifting plate 3, and two limit rods 2011 are fixedly installed on the lower end surface of the top plate 201, the lower end surface of the limit rod 2011 is fixedly connected to the base 1, and the limit rod 2011 is clamped in the limit hole 702 on the surface of the limit plate 7.

[0026] By adopting the above scheme, the technical effect brought about is: after the worker starts the second motor 11, the driving screw 1101 is threadedly connected to the limiting cylinder 301, so that the driving screw 1101 can drive the lifting plate 3 to move up and down when it rotates. In this process, since the limiting block 701 is clamped in the vertical slide groove 202 on the surface of the support plate 2, the limiting block 701 can play a limiting role, and the limiting rod 2011 is slidably clamped in the limiting hole 702 on the surface of the limiting plate 7, so that the limiting plate 7 and the lifting plate 3 will not swing left and right when moving up and down, which can ensure that the limiting plate 7 and the lifting plate 3 can move vertically up and down.

[0027] Embodiment 3: The present invention provides a soil respiration measuring instrument, based on the embodiment 1, such as Figure 1-Figure 8 As shown, it also includes: the internal sliding card of the horizontal slide groove 303 is equipped with a fastening block 12, the upper end surface of the fastening block 12 is fixedly installed with a fastening screw 1201, the fastening screw 1201 is clamped in the through hole 501 on the surface of the fixing plate 5, and a nut is connected to the surface of the fastening screw 1201.

[0028] By adopting the above scheme, the technical effect brought about is: when installing the measuring instrument 4, the two fastening blocks 12 can be respectively clamped in the horizontal slide groove 303, and then the fastening screw 1201 at the upper end of the fastening block 12 can be clamped in the through hole 501 on the surface of the fixing plate 5. After tightening the nut on the surface of the fastening screw 1201, the fixing plate 5 can be fixed on the upper end surface of the lifting plate 3, thereby facilitating the workers to disassemble and install the measuring instrument 4.

[0029] Specific usage and function of this embodiment: In the present invention, after the worker starts the second motor 11, the driving screw 1101 is threadedly connected to the limiting cylinder 301, so that the driving screw 1101 can drive the lifting plate 3 to move up and down when it rotates. In this process, since the limiting block 701 is clamped in the vertical slide groove 202 on the surface of the support plate 2, the limiting block 701 can play a limiting role, and the limiting rod 2011 is slidably clamped in the limiting hole 702 on the surface of the limiting plate 7, so that the limiting plate 7 and the lifting plate 3 will not swing left and right when moving up and down, which can ensure that the limiting plate 7 and the lifting plate 3 can move vertically up and down Movement, when the fixed pipe 9 is drilled to the specified depth, the fixed pipe 9 is connected to the base plate 10 by six connecting rods 901, and there is a gap between the fixed pipe 9 and the base plate 10. At this time, the carbon dioxide generated by the microbial activity deep in the soil will enter the extension pipe 8, and the upper end of the extension pipe 8 is threadedly connected to the driving shaft 601, so that a space can be formed inside the extension pipe 8. The carbon dioxide sensor 403 is located in the empty groove 6011 inside the driving shaft 601, so that the carbon dioxide sensor 403 can monitor the carbon dioxide concentration inside the extension pipe 8, and the carbon dioxide sensor 403 is connected to the measuring device 4 through the connecting wire 402, so that The measuring device 4 can display the change of the carbon dioxide concentration inside the extension tube 8, so as to judge the respiration intensity of the soil. The inner upper end surface of the extension tube 8 is provided with a groove, and the surface of the groove is provided with a thread. The lower position of the outer end surface of the extension tube 8 is provided with a notch, and the outside of the notch is provided with a thread. When monitoring the respiration intensity of soil at different depths, the lower end portion of the extension tube 8 can be threadedly connected to the inner upper end of another extension tube 8, so that two or more extension tubes 8 can be connected together, which is convenient for monitoring the respiration intensity of soil at different depths. When installing the measuring device 4, the two fastening blocks 12 can be respectively clamped on the lateral slide The groove 303 is then used, and the fastening screw 1201 at the upper end of the fastening block 12 is clamped in the through hole 501 on the surface of the fixing plate 5. After the nut on the surface of the fastening screw 1201 is tightened, the fixing plate 5 can be fixed on the upper end surface of the lifting plate 3, so as to facilitate the workers to disassemble and install the measuring device 4. A propeller 1001 is installed at the lower end of the base plate 10. The main body of the propeller 1001 is a spiral structure, so that after the first motor 6 is started, the driving shaft 601, the extension tube 8, the fixed tube 9 and the base plate 10 can rotate at the same time, and when the propeller 1001 at the lower end of the base plate 10 rotates, it is convenient for the extension tube 8 and the fixed tube 9 to penetrate deep into the soil.

Claims

1. A soil respiration measuring instrument, characterized in that: include: A base (1), wherein a connecting plate (101) is respectively installed at the left and right ends of the base (1), and a fixing box (102) is installed on the upper end surface of the base (1); a support plate (2), wherein the main body of the support plate (2) is a rectangular plate-shaped structure, and a top plate (201) is fixedly installed on the upper end surface of the support plate (2); a lifting plate (3), wherein a slot (302) is provided at the middle position of the front end surface of the lifting plate (3), a limiting cylinder (301) is fixedly installed on the surface of the lifting plate (3), and two transverse sliding grooves (303) are also provided on the surface of the lifting plate (3). ), the rear end surface of the lifting plate (3) is in contact with the support plate (2); a measuring device (4), the lower end surface of the measuring device (4) is fixedly mounted with two support legs (401), the measuring device (4) is located above the lifting plate (3), and the lower end surface of the measuring device (4) is fixedly mounted with a connecting wire (402); a fixing plate (5), the fixing plate (5) is provided with two groups, and the fixing plate (5) is mounted on the lower end surface of the support legs (401); a first motor (6), the first motor (6) is fixedly mounted on the upper end surface of the lifting plate (3), and the lower end surface of the first motor (6) is fixedly mounted on the upper end surface of the lifting plate (3). The end surface transmission is connected with a driving shaft (601); a limit plate (7), a limit hole (702) is provided on the surface of the limit plate (7), and three limit blocks (701) are provided on the front end surface of the limit plate (7); an extension tube (8), a groove is provided on the inner upper end surface of the extension tube (8), a thread is provided on the surface of the groove, a notch is provided at the lower position of the outer end surface of the extension tube (8), and a thread is provided on the outside of the notch; a fixed tube (9), a thread is provided on the inner upper end surface of the fixed tube (9), and six connecting members are fixedly installed on the lower end surface of the fixed tube (9) The rod (901) is provided with six connecting rods (901) in a ring structure; the base plate (10) is provided with a main body of a circular plate structure, and the lower end surface of the base plate (10) is fixedly mounted with a propeller (1001); the second motor (11) is fixedly mounted inside the fixed box (102), the upper end surface of the second motor (11) is transmission-connected to a driving screw (1101), the upper end surface of the driving screw (1101) is rotationally connected to the top plate (201), and the driving screw (1101) is threadedly connected to a limiting cylinder (301).

2. A soil respiration measuring instrument as claimed in claim 1, characterized in that: The surface of the support plate (2) is provided with three vertical slide grooves (202), and three limit clamping blocks (701) on the front end surface of the limit plate (7) are respectively clamped in the three vertical slide grooves (202), and the limit clamping blocks (701) are fixedly connected to the lifting plate (3).

3. A soil respiration measuring instrument as claimed in claim 1, characterized in that: Two limiting rods (2011) are fixedly mounted on the lower end surface of the top plate (201), the lower end surfaces of the limiting rods (2011) are fixedly connected to the base (1), and the limiting rods (2011) are clamped in limiting holes (702) on the surface of the limiting plate (7).

4. A soil respiration measuring instrument as claimed in claim 1, characterized in that: The driving shaft (601) is provided with an empty groove (6011) inside, a thread is provided below the outer end surface of the driving shaft (601), the extension tube (8) is threadedly connected to the driving shaft (601), and a connecting tube (6012) is installed outside the driving shaft (601).

5. A soil respiration measuring instrument as claimed in claim 1, characterized in that: The upper end surface of the fixed tube (9) is threadedly connected to the extension tube (8), and the connecting rod (901) at the lower end of the fixed tube (9) is fixedly connected to the base plate (10).

6. A soil respiration measuring instrument as claimed in claim 1, characterized in that: A carbon dioxide sensor (403) is fixedly mounted at the end of the connecting wire (402); the outer end of the carbon dioxide sensor (403) is clamped in the connecting tube (6012); and the front end of the carbon dioxide sensor (403) is located in an empty slot (6011) inside the driving shaft (601).

7. A soil respiration measuring instrument as claimed in claim 1, characterized in that: A fastening block (12) is slidably mounted inside the transverse sliding groove (303), and a fastening screw (1201) is fixedly mounted on the upper end surface of the fastening block (12).

8. A soil respiration measuring instrument as claimed in claim 7, characterized in that: The fastening screw (1201) is clamped in a through hole (501) on the surface of the fixing plate (5), and a nut is connected to the surface of the fastening screw (1201).

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