Indoor soil organic carbon mineralization culture monitoring device

Abstract

The invention discloses an indoor soil organic carbon mineralization culture monitoring device, and relates to the technical field of soil monitoring, the indoor soil organic carbon mineralization culture monitoring device comprises a constant temperature water tank, a temperature control box and a heating wire located in the constant temperature water tank, the temperature control box is connected with a temperature sensor located in the constant temperature water tank and the heating wire, and a first chassis is arranged in the constant temperature water tank; absorption bottles for placing soil sample culture dishes and evaporation dishes and culture bottles for placing sodium hydroxide liquid are uniformly distributed on the circumference of the first chassis in equal quantity, the middle part of the first chassis is rotatably connected with a second chassis, two rows of absorption bottles are symmetrically arranged on the second chassis, each row of absorption bottles is arc-shaped, and the circle centers of the absorption bottles are positioned on the central axes of the culture bottles; and a liftable ventilation pipe fitting is arranged above the absorption bottle. According to the invention, through the arrangement of the ventilation pipe fitting, one-to-one replacement of the absorption bottle and the culture bottle or one-to-many use of the absorption bottle by the culture bottle can be automatically adjusted, and the overall efficiency is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of soil monitoring, and more particularly to an indoor soil organic carbon mineralization cultivation monitoring device. Background Art

[0002] Soil carbon is released into the atmosphere primarily through the mineralization of organic carbon, which enters the atmosphere from the pedosphere in the form of CO2. Soil organic carbon mineralization is a key process in the dynamics of soil organic carbon. It is a process in which soil microorganisms utilize and decompose soil active organic carbon, completing their metabolic cycle while releasing CO2. This process is directly related to the formation of soil greenhouse gases and the storage of soil organic carbon. Uncovering the patterns of soil organic carbon mineralization has important practical implications for the scientific management of soil carbon pools and the effective control of global climate change.

[0003] An indoor soil organic carbon mineralization cultivation monitoring device disclosed in application number 201820735784.6 includes a constant temperature water tank, a temperature acquisition component, a culture bottle, an absorption bottle, and a catheter. One end of the catheter passes through the first rubber inner plug and extends to the interior of the culture bottle; the other end passes through the second rubber inner plug and extends below the liquid surface of the sodium hydroxide liquid. The device provided in this application uses a constant temperature water tank dug out of a temperature control box to control the cultivation temperature, which can provide specific temperature conditions for soil organic carbon mineralization. Although the culture bottle and the absorption bottle are separated and connected by a catheter, the soil organic carbon mineralization rate and cumulative mineralization amount can be continuously measured. However, during the test of this device, the culture bottle and the absorption bottle can only be replaced manually, which is not convenient for continuous monitoring.

[0004] Therefore, it is necessary to propose an indoor soil organic carbon mineralization cultivation monitoring device to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the problem that the culture bottle and the absorption bottle of the existing indoor soil organic carbon mineralization culture monitoring device can only be replaced manually during testing, which is inconvenient for continuous monitoring.

[0006] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0007] An indoor soil organic carbon mineralization cultivation monitoring device comprises a constant temperature water tank, a temperature control box, and a heating wire located in the constant temperature water tank. The temperature control box is connected to a temperature sensor and the heating wire located in the constant temperature water tank, respectively. A first chassis is provided in the constant temperature water tank. An equal number of absorption bottles for placing soil sample culture dishes and evaporating dishes, as well as culture bottles containing sodium hydroxide liquid, are evenly distributed around the circumference of the first chassis. A second chassis is rotatably connected to the middle of the first chassis. Two rows of absorption bottles are symmetrically arranged on the second chassis. Each row of absorption bottles is arc-shaped, with the center of the circle located on the central axis of the culture bottle.

[0008] A liftable ventilation pipe is provided above the absorption bottle, and the ventilation pipe can be rotated along the center of the first chassis so that the two ends of the ventilation pipe are inserted into different absorption bottles and culture bottles;

[0009] The ventilation tube is retractable so that one end of the ventilation tube is located in the culture bottle and the other end can be rotated along the axis of the culture bottle to the absorption bottle in the same row as the axis of the culture bottle.

[0010] Furthermore, a first N-shaped frame is fixedly connected to the outer side of the first chassis, a rectangular through hole is opened in the middle of the first N-shaped frame, a hollow I-shaped slider is slidably connected in the rectangular through hole, a first electric push rod is fixedly connected in the hollow I-shaped slider, the ventilation pipe is arranged on the output end of the lower end of the first electric push rod, and the upper end of the first electric push rod is driven to rotate by the first driving mechanism.

[0011] Furthermore, the first driving mechanism includes a first motor fixedly connected to the upper end of the hollow I-shaped slider, a gear fixedly connected to the output shaft of the first motor, and a tooth groove provided at the upper end of the first electric push rod, wherein the tooth groove and the gear are meshed and connected.

[0012] Furthermore, the lower end of the first electric push rod is rotatably connected to a convex slider, and the convex slider is slidably connected to the middle part of the second N-shaped frame. A convex slide groove for the convex slider to be slidably connected is opened in the middle part of the second N-shaped frame, and the ventilation pipe is arranged at both ends of the second N-shaped frame.

[0013] Furthermore, the ventilation pipe fitting includes a first L-shaped tube fixedly connected to one end of the second N-shaped frame, a second L-shaped tube slidably connected to the other end of the second N-shaped frame, and a second electric push rod fixedly connected to the second N-shaped frame at one end of the first L-shaped tube. The other end of the first L-shaped tube is inserted into the culture bottle, the other end of the second L-shaped tube is inserted into the absorption bottle, the end of the second L-shaped tube away from the absorption bottle is slidably connected to the inner side of the first L-shaped tube, and the output end of the second electric push rod is fixedly connected to a connecting plate, and the connecting plate is fixedly connected to the second L-shaped tube.

[0014] Furthermore, the opening of the absorption bottle is fixedly connected to a first bottle stopper, the middle of the first bottle stopper is fixedly connected to a long tube, the upper end of the long tube is fixedly connected to a silicone layer, and the end of the second L-shaped tube away from the first L-shaped tube is set as a needle-shaped tube, and the needle-shaped tube can pass through the middle of the silicone layer to the long tube.

[0015] Furthermore, the opening of the culture bottle is fixedly connected to a second bottle stopper, the outer side surface of one end of the first L-shaped tube away from the second L-shaped tube is fixedly connected to an electromagnet, a connecting tube is slidably connected to the second bottle stopper, and a magnetic ring is provided at the upper end of the connecting tube. The electromagnet can absorb and repel the magnetic ring by adjusting the direction of the current, so as to drive the connecting tube to rise and fall. When rising, the culture bottle and the absorption bottle are connected, and when lowering, the culture bottle and the absorption bottle are respectively closed.

[0016] Furthermore, a vent hole is provided at the lower end of the second bottle stopper, a cylindrical hole connected to the vent hole is provided in the middle of the second bottle stopper, a sunken groove connected to the cylindrical hole is provided at the upper end of the second bottle stopper, a sliding groove is provided on the outer side of the connecting tube, a sliding ring is provided in the sliding groove for sliding and rotating, a magnetic ring is fixedly connected to the outer side of the sliding ring, and the magnetic ring can be inserted into the sunken groove.

[0017] Furthermore, a second sealing ring is fixedly connected to the bottom of the inner side surface of one end of the first L-shaped tube away from the second L-shaped tube, and a first sealing ring is fixedly connected to the bottom of the outer side surface of the connecting tube.

[0018] Furthermore, when the electromagnet attracts the magnetic ring, the inner side of the magnetic ring fits against the bottom of the outer side of the first L-shaped tube.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The present invention can automatically adjust the one-to-one replacement of the absorption bottle and the culture bottle or the one-to-many use of the absorption bottle by setting the ventilation pipe, thereby improving the overall efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the main view of the structure of the present invention.

[0022] Figure 2 This is a first schematic top view of the structure of the present invention.

[0023] Figure 3 It is a cross-sectional schematic diagram of the structure of the present invention.

[0024] Figure 4 2 is a second top view schematic diagram of the structure of the present invention.

[0025] Figure 5 For the present invention Figure 1 Enlarged schematic diagram of point A in the middle.

[0026] Figure 6 For the present invention Figure 3 Enlarged schematic diagram of point B in the middle.

[0027] Figure 7 It is a three-dimensional schematic diagram of the connection structure at the second n-shaped frame in the present invention.

[0028] Reference numerals: 1, constant temperature water tank; 2, temperature sensor; 3, temperature control box; 4, heating wire; 5, first chassis; 6, first magnetic suction cup; 7, absorption bottle; 8, first bottle stopper; 9, long tube; 10, silicone layer; 11, second magnetic suction cup; 12, culture bottle; 13, second bottle stopper; 14, vent hole; 15, cylindrical hole; 16, connecting pipe; 17, first sealing ring; 18, sunken groove; 19, magnetic suction ring; 20, sliding groove; 21, sliding ring; 22, first n-shaped frame; 23, rectangular through hole; 24 , hollow I-shaped slider; 25, rectangular sleeve; 26, first electric push rod; 27, tooth groove; 28, first motor; 29, gear; 30, convex slider; 31, second N-shaped frame; 32, convex slide; 33, first L-shaped tube; 34, second L-shaped tube; 35, needle tube; 36, second electric push rod; 37, connecting plate; 38, third electric push rod; 39, second sealing ring; 40, electromagnet; 41, second chassis; 42, center rod; 43, second motor; 44, connecting rod; 45, longitudinal rod. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] See also Figures 1 to 7, an indoor soil organic carbon mineralization cultivation monitoring device, comprising a constant temperature water tank 1, a temperature control box 3 and a heating wire 4 located in the constant temperature water tank 1, the temperature control box 3 is respectively connected to the temperature sensor 2 and the heating wire 4 located in the constant temperature water tank 1, a first chassis 5 is provided in the constant temperature water tank 1, and an equal number of absorption bottles 7 for placing soil sample culture dishes and evaporating dishes and a culture bottle 12 containing sodium hydroxide liquid are evenly distributed on the upper side surface of the first chassis 5. The soil sample culture dish is kept at a constant weight by adding water by weighing, and the titration is completely naturally ventilated for 30 minutes, and then used to determine the average daily mineralization amount and organic carbon decomposition rate of soil organic carbon. The absorption bottle 7 and the culture bottle 12 are respectively installed on the first chassis 5 by a first magnetic suction cup 6 and a second magnetic suction cup 11. The middle part of the first chassis 5 is rotatably connected to the second chassis 41, and two rows of absorption bottles 7 are symmetrically arranged on the second chassis 41. The absorption bottles 7 are placed, and each row of absorption bottles 7 is arc-shaped, and the center of the circle is located on the central axis of the culture bottle 12;

[0031] A liftable ventilation pipe is provided above the absorption bottle 7. The ventilation pipe can rotate along the center of the first chassis 5 so that the two ends of the ventilation pipe are inserted into different absorption bottles 7 and culture bottles 12. At this time, the ventilation pipe rotates along the central axis of the first chassis 5.

[0032] The structure is used as follows: The temperature of the constant-temperature water bath is set in the temperature control box 3, the temperature control device is activated, and the soil sample is mineralized. The NaOH solution in the absorption bottle 7 absorbs the CO2 released during the mineralization of soil organic carbon. The CO2 absorbed by the NaOH solution is measured using HCl titration, and the cumulative CO2 release is converted into a mineralization rate. For detailed principles and implementation methods, please refer to the documents mentioned in the background technology.

[0033] The ventilation tube is retractable so that one end of the ventilation tube is located in the culture bottle 12. At this time, the other end of the ventilation tube can be rotated along the axis of the culture bottle 12 to the absorption bottle 7 in the same row as the axis of the culture bottle 12.

[0034] Specifically, the outer side of the first chassis 5 is fixedly connected to the first N-shaped frame 22, and a rectangular through hole 23 is opened in the middle of the first N-shaped frame 22. A hollow I-shaped slider 24 is slidably connected in the rectangular through hole 23. The middle part of the hollow I-shaped slider 24 is slidably set in the rectangular through hole 23, and the upper and lower ends are respectively fitted with the upper and lower end surfaces of the first N-shaped frame 22. The lower end of the hollow I-shaped slider 24 is fixedly connected to a rectangular sleeve 25, and the inside of the rectangular sleeve 25 is fixedly connected to a first electric push rod 26. The output end of the first electric push rod 26 faces downward, so that the ventilation pipe is set on the output end of the lower end of the first electric push rod 26. The upper end of the first electric push rod 26 is driven to rotate by the first driving mechanism, so that the ventilation pipe can be driven to rotate.

[0035] Specifically, the first driving mechanism includes a first motor 28 fixedly connected to the upper end of the hollow I-shaped slider 24, a gear 29 fixedly connected to the output shaft of the first motor 28, and a tooth groove 27 opened at the upper end of the first electric push rod 26. The tooth groove 27 and the gear 29 are engaged and connected to realize transmission, thereby driving the ventilation pipe to rotate.

[0036] Specifically, the lower end of the first electric push rod 26 is rotatably connected to the convex slider 30, and there is friction between the convex slider 30 and the convex slider 30. Only under the action of external force can the convex slider 30 and the first electric push rod 26 be pushed to rotate relative to each other. The convex slider 30 is slidably connected to the middle part of the second N-shaped frame 31. The middle part of the second N-shaped frame 31 is provided with a convex groove 32 for the slidable connection of the convex slider 30. At the same time, there is also friction between the convex slider 30 and the convex groove 32. Under the action of external force, the convex slider 30 can be driven to move relatively along the convex groove 32. Ventilation pipe fittings are arranged at both ends of the second N-shaped frame 31.

[0037] In order to move the hollow I-shaped slider 24 , a third electric push rod 38 is fixedly connected to one end of the rectangular through hole 23 , and an output end of the third electric push rod 38 is fixedly connected to one side of the hollow I-shaped slider 24 .

[0038] Specifically, the ventilation pipe includes a first L-shaped tube 33 fixedly connected to one end of the second N-shaped frame 31, a second L-shaped tube 34 slidably connected to the other end of the second N-shaped frame 31, and a second electric push rod 36 fixedly connected to the second N-shaped frame 31 at one end of the first L-shaped tube 33, wherein the other end of the first L-shaped tube 33 is inserted into the culture bottle 12, the other end of the second L-shaped tube 34 is inserted into the absorption bottle 7, and the end of the second L-shaped tube 34 away from the absorption bottle 7 is slidably connected to the inner side of the first L-shaped tube 33, and the output end of the second electric push rod 36 is fixedly connected to a connecting plate 37, which is fixedly connected to the second L-shaped tube 34. The second electric push rod 36 can drive the second L-shaped tube 34 to slide when it is extended and retracted, thereby adjusting the distance between the lower ends of the first L-shaped tube 33 and the second L-shaped tube 34.

[0039] Specifically, the opening of the absorption bottle 7 is fixedly connected to a first bottle stopper 8, and the middle part of the first bottle stopper 8 is fixedly connected to a long tube 9. The lower end of the long tube 9 extends to the lower end of the absorption bottle 7, so that the liquid in the absorption bottle 7 does not exceed the lower end of the long tube 9. In addition, a silicone layer 10 is fixedly connected to the upper end of the long tube 9, and the end of the second L-shaped tube 34 away from the first L-shaped tube 33 is set as a needle tube 35. The needle tube 35 can pass through the middle of the silicone layer 10 to the long tube 9. The needle tube 35 can pass through the silicone layer 10 and be inserted into the long tube 9. At the same time, the silicone layer 10 can also wrap the outer side of the needle tube 35 to prevent air leakage. When the needle tube 35 is pulled out, the silicone layer 10 can automatically recover to prevent external debris from entering the long tube 9.

[0040] Specifically, the opening of the culture bottle 12 is fixedly connected to the second bottle stopper 13, the outer side surface of one end of the first L-shaped tube 33 away from the second L-shaped tube 34 is fixedly connected to the electromagnet 40, the second bottle stopper 13 is slidably connected to the connecting tube 16, and the upper end of the connecting tube 16 is provided with a magnetic ring 19. The electromagnet 40 can absorb and repel the magnetic ring 19 by adjusting the direction of the current, so as to drive the connecting tube 16 to rise and fall. When the magnetic ring 19 is absorbed and the connecting tube 16 is driven to rise, the culture bottle 12 and the absorption bottle 7 are connected. When the magnetic ring 19 is repelled and the connecting tube 16 is driven to lower, the culture bottle 12 and the absorption bottle 7 are respectively closed.

[0041] Specifically, a vent hole 14 is provided at the lower end of the second bottle stopper 13, a cylindrical hole 15 communicating with the vent hole 14 is provided in the middle of the second bottle stopper 13, a sunken groove 18 communicating with the cylindrical hole 15 is provided at the upper end of the second bottle stopper 13, a sliding groove 20 is provided on the outer side of the connecting tube 16, a sliding ring 21 is provided in the sliding groove 20 for sliding and rotating, a magnetic ring 19 is fixedly connected to the outer side of the sliding ring 21, and the magnetic ring 19 can be inserted into the sunken groove 18. A second sealing ring 39 is fixedly connected to the bottom of the inner side of the end of the first L-shaped tube 33 away from the second L-shaped tube 34, and a first sealing ring 17 is fixedly connected to the bottom of the outer side of the connecting tube 16, wherein the position of the connecting tube 16 is divided into three stages: taking the first sealing ring 17 as a reference:

[0042] When the lower end of the first sealing ring 17 is in contact with the second bottle stopper 13, the vent pipe is in a non-ventilated state;

[0043] When the first sealing ring 17 is fitted into the upper end of the cylindrical hole 15 , the needle tube 35 is removed from the first bottle stopper 8 to replace other absorption bottles 7 and culture bottles 12 ;

[0044] When the first sealing ring 17 is located in the middle of the cylindrical hole 15, the needle tube 35 is always located in the long tube 9. At this time, the ventilation pipe is connected and ventilation can be performed.

[0045] Specifically, when the electromagnet 40 attracts the magnetic ring 19, the inner side of the magnetic ring 19 fits against the outer bottom of the first L-shaped tube 33. At this time, the magnetic ring 19 can prevent the first L-shaped tube 33 and the connecting tube 16 from misaligning and causing air leakage.

[0046] In order to realize automatic rotation of the second chassis 41, a center rod 42 is fixedly connected to the center of the first chassis 5, the second chassis 41 is rotatably connected to the bottom of the center rod 42, the upper end of the center rod 42 is fixedly connected to the second motor 43, the output shaft of the second motor 43 is fixedly connected to the connecting rod 44, and the upper end surface of the second chassis 41 is fixedly connected to the longitudinal rod 45, which is inserted into one end of the connecting rod 44, so that the second motor 43 drives the connecting rod 44 to rotate, and the connecting rod 44 drives the longitudinal rod 45 to rotate, and then the longitudinal rod 45 drives the second chassis 41 to rotate.

[0047] Instructions for use: First, fill the absorption bottle 7 and the culture bottle 12 completely or place the corresponding items. Figure 2 As shown, when in use, start with the culture bottle 12 at the top, and the one being used is the absorption bottle 7 at the bottom. The absorption bottles 7 and culture bottles 12 located on the periphery of the first chassis 5 are used one-to-one, that is, when replacing any one, the other is replaced. The absorption bottles 7 on the second chassis 41 are used one-to-many. In this application, the culture bottle 12 located at the bottom of the periphery of the first chassis 5 is selected for one-to-many use.

[0048] In one-to-one use: when the absorption bottle 7 and the culture bottle 12 need to be replaced, the current of the electromagnet 40 is first controlled to reverse, thereby repelling the magnetic ring 19, and then the first electric push rod 26 is controlled to extend, driving the connecting tube 16 to reset until the first sealing ring 17 fits the lower end of the cylindrical hole 15, so that the connecting tube 16 remains in the second bottle stopper 13, and then the first electric push rod 26 is controlled to retract, driving the needle tube 35 to be removed from the long tube 9, and then the absorption bottle 7 that has been adsorbed can be used for subsequent experimental testing, and then the first motor is controlled to retract. 28 is started, driving the gear 29 to rotate, and the gear 29 drives the first electric push rod 26 to rotate. Then the first electric push rod 26 drives the ventilation pipe to rotate to the corresponding positions of the absorption bottle 7 and the culture bottle 12. Then the current of the electromagnet 40 is reversed, and the first electric push rod 26 is controlled to extend, so that the electromagnet 40 attracts the magnetic ring 19 and drives the needle tube 35 to insert into the long tube 9. Then the first electric push rod 26 is controlled to retract, driving the connecting tube 16 to move upward, so that the first sealing ring 17 is located in the cylindrical hole 15, and the replacement is completed;

[0049] When used in a one-to-many manner, the first L-shaped tube 33 should be located at Figure 2 The upper end of the culture bottle 12 at the bottom end shown in the figure is ensured that the electromagnet 40 has attracted the magnetic ring 19 and the first sealing ring 17 is in contact with the upper end of the cylindrical hole 15, and then the second motor 43 is controlled to start and the second chassis 41 is adjusted to be in the position Figure 2 , the cooperation between the magnetic ring 19 and the electromagnet 40 can limit the movement of the first L-shaped tube 33. At this time, the second electric push rod 36 can be controlled to retract, thereby driving the second L-shaped tube 34 to be inserted into the first L-shaped tube 33. At this time, the retracted second L-shaped tube 34 is located above the absorption bottle 7 below the second n-shaped frame 31. When the position of the second L-shaped tube 34 needs to be adjusted, the second electric push rod 36 is controlled to extend or retract to drive the hollow I-shaped slider 24 to slide. Due to the rotation arrangement between the first electric push rod 26 and the convex slider 30, the hollow I-shaped slider 24 can be pushed to slide, thereby driving the second L-shaped tube 34 to rotate around the axis of the culture bottle 12 at the lower end of the first L-shaped tube 33. After the rotation is completed and reaches the position, the absorption bottle 7 and the culture bottle 12 are installed according to the one-to-one method.

[0050] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the contents of the description of the present invention shall also be included in the scope of protection of the present invention.

Claims

1. An indoor soil organic carbon mineralization cultivation monitoring device, comprising a constant temperature water tank, a temperature control box, and a heating wire located in the constant temperature water tank, wherein the temperature control box is connected to a temperature sensor and the heating wire located in the constant temperature water tank, respectively, and characterized by: The constant temperature water tank is provided with a first chassis, and an equal number of absorption bottles for placing soil sample culture dishes and evaporating dishes, as well as culture bottles containing sodium hydroxide liquid, are evenly distributed on the circumference of the first chassis. The middle of the first chassis is rotatably connected to a second chassis, and two rows of absorption bottles are symmetrically arranged on the second chassis. Each row of absorption bottles is arc-shaped, and the center of the circle is located on the central axis of the culture bottle; A liftable ventilation pipe is provided above the absorption bottle, and the ventilation pipe can be rotated along the center of the first chassis so that the two ends of the ventilation pipe are inserted into different absorption bottles and culture bottles; The ventilation tube is retractable so that one end of the ventilation tube is located in the culture bottle and the other end can be rotated along the axis of the culture bottle to the absorption bottle in the same row as the axis of the culture bottle.

2. The indoor soil organic carbon mineralization cultivation monitoring device according to claim 1, characterized in that: A first N-shaped frame is fixedly connected to the outer side of the first chassis, a rectangular through hole is opened in the middle of the first N-shaped frame, a hollow I-shaped slider is slidably connected in the rectangular through hole, a first electric push rod is fixedly connected in the hollow I-shaped slider, the ventilation pipe is arranged on the output end of the lower end of the first electric push rod, and the upper end of the first electric push rod is driven to rotate by the first driving mechanism.

3. The indoor soil organic carbon mineralization cultivation monitoring device according to claim 2, characterized in that: The first driving mechanism includes a first motor fixedly connected to the upper end of the hollow I-shaped slider, a gear fixedly connected to the output shaft of the first motor, and a tooth groove provided on the upper end of the first electric push rod, wherein the tooth groove is meshed with the gear.

4. The indoor soil organic carbon mineralization cultivation monitoring device according to claim 3, characterized in that: The lower end of the first electric push rod is rotatably connected to a convex slider, and the convex slider is slidably connected to the middle of the second N-shaped frame. A convex sliding groove for the convex slider to be slidably connected is opened in the middle of the second N-shaped frame, and the ventilation pipe is arranged at both ends of the second N-shaped frame.

5. The indoor soil organic carbon mineralization cultivation monitoring device according to claim 4, characterized in that: The ventilation pipe fitting includes a first L-shaped tube fixedly connected to one end of a second N-shaped frame, a second L-shaped tube slidably connected to the other end of the second N-shaped frame, and a second electric push rod fixedly connected to the second N-shaped frame at one end of the first L-shaped tube. The other end of the first L-shaped tube is inserted into the culture bottle, the other end of the second L-shaped tube is inserted into the absorption bottle, the end of the second L-shaped tube away from the absorption bottle is slidably connected to the inner side of the first L-shaped tube, and the output end of the second electric push rod is fixedly connected to a connecting plate, and the connecting plate is fixedly connected to the second L-shaped tube.

6. The indoor soil organic carbon mineralization cultivation monitoring device according to claim 5, characterized in that: The opening of the absorption bottle is fixedly connected to a first bottle stopper, the middle of the first bottle stopper is fixedly connected to a long tube, the upper end of the long tube is fixedly connected to a silicone layer, and the end of the second L-shaped tube away from the first L-shaped tube is set as a needle-shaped tube, and the needle-shaped tube can pass through the middle of the silicone layer to the long tube.

7. The indoor soil organic carbon mineralization cultivation monitoring device according to claim 5, characterized in that: The opening of the culture bottle is fixedly connected to a second bottle stopper, the outer side surface of the end of the first L-shaped tube away from the second L-shaped tube is fixedly connected to an electromagnet, and a connecting tube is slidably connected to the second bottle stopper. A magnetic ring is provided at the upper end of the connecting tube. The electromagnet can absorb and repel the magnetic ring by adjusting the direction of the current, so as to drive the connecting tube to rise and fall. When rising, the culture bottle and the absorption bottle are connected, and when lowering, the culture bottle and the absorption bottle are respectively closed.

8. The indoor soil organic carbon mineralization cultivation monitoring device according to claim 7, characterized in that: A vent hole is provided at the lower end of the second bottle stopper, a cylindrical hole connected to the vent hole is provided in the middle of the second bottle stopper, a sunken groove connected to the cylindrical hole is provided at the upper end of the second bottle stopper, a sliding groove is provided on the outer side of the connecting tube, a sliding ring is provided in the sliding groove for sliding and rotating, a magnetic ring is fixedly connected to the outer side of the sliding ring, and the magnetic ring can be inserted into the sunken groove.

9. The indoor soil organic carbon mineralization cultivation monitoring device according to claim 8, characterized in that: A second sealing ring is fixedly connected to the bottom of the inner side surface of one end of the first L-shaped tube away from the second L-shaped tube, and a first sealing ring is fixedly connected to the bottom of the outer side surface of the connecting tube.

10. The indoor soil organic carbon mineralization cultivation monitoring device according to claim 8, characterized in that: When the electromagnet attracts the magnetic ring, the inner side of the magnetic ring is in contact with the bottom of the outer side of the first L-shaped tube.

Images