Experimental device for micro-ecological influence of rice field soil

Abstract

The utility model provides a rice field soil micro-ecology influence experiment device which is of a layered structure and comprises an inner tube shell and an outer tube shell which are sleeved with each other, a space between the outer tube shell and the inner tube shell is used for containing water and other liquid pushing diffusion components to diffuse into a soil sample, and the inner tube shell mainly comprises two tube shell parts which are connected end to end. Wherein one is used for accommodating a to-be-detected soil sample, the other one is used for placing pollutants such as chemical fertilizer used for diffusing to the soil sample, the first inner pipe and the second inner pipe are separated by a filter screen, and the structure of a placement opening and a cover plate on the outer pipe shell is convenient for placing and taking out the sample and diffusion components, so that the stability and controllability of a soil experiment environment can be ensured; the ecological environment of the rice field can be well simulated, and the technical problem that the reference value of experimental data is limited due to the fact that an existing soil micro-ecological experimental device is poor in controllability is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of microecological experimental equipment, in particular to a paddy field soil microecological impact experimental device. Background Art

[0002] Soil microorganisms, tiny yet vital components of the soil ecosystem, encompass a diverse group of organisms that are difficult to discern with the naked eye. Measured in micrometers, they typically contain hundreds of millions to tens of billions of microorganisms per gram of soil. Their species and numbers vary with the environment and soil depth. They carry out biochemical cycles within the soil, including oxidation, nitrification, and nitrogen fixation, promoting the decomposition of soil organic matter and the conversion of nutrients.

[0003] By preventing paddy soil from coming into direct contact with fertilizers or pollutants, it is possible to assess whether another soil substance, such as a certain type of fertilizer or pollutant, will affect the paddy soil microenvironment. For example, will the soil's physical and chemical properties change, or will microorganisms actively migrate? Currently, traditional experimental devices can only perform a single experimental treatment and cannot quickly and accurately assess whether another soil substance will affect the paddy soil microenvironment, especially when it comes to changes in soil properties in a water environment. Currently, there is no convenient and reliable experimental device, and the experimental environment is often poorly controllable, making experiments difficult to repeat.

[0004] In summary, existing soil microecological experimental devices have technical problems such as poor controllability, which leads to limited reference value of experimental data. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing soil microecological experimental device has poor controllability, resulting in limited reference value of experimental data.

[0006] To solve the above problems, the utility model provides a paddy field soil microecological impact experimental device, comprising a medium cylindrical outer tube shell and an inner tube shell arranged inside the outer tube shell, the top of the outer tube shell is provided with an upper inlet for inserting the inner tube shell, and the outer tube shell also includes a cover for closing the upper inlet; the inner tube shell comprises a first inner tube and a second inner tube connected at the first end and separated by a filter screen, and filters are provided at both ends of the inner tube shell, which are connected to the space between the outer tube shell and the inner tube shell through the filter screen, the first inner tube and the second inner tube are respectively used to accommodate the soil sample to be tested and the diffusion component, and the space inside the outer tube shell is used to accommodate a liquid used to promote the diffusion of the experimental components.

[0007] The present invention provides a layered soil experimental device, comprising inner and outer tube shells nested in each other, wherein the space between the outer tube shell and the inner tube shell accommodates liquid such as water that promotes diffusion components to diffuse into the soil sample; the inner tube shell mainly comprises two tube shells connected end to end, one of which is used to accommodate the soil sample to be tested, and the other is used to place pollutants such as fertilizer for diffusion into the soil sample; the first inner tube and the second inner tube are separated by a filter screen; the structure of the inlet and the cover plate on the outer tube shell facilitates the placement and removal of samples and diffusion components, can ensure the stability and controllability of the soil experimental environment, can better simulate the paddy field ecological environment, and can determine whether paddy field soil and fertilizer or pollutant microorganisms will actively migrate and flow with the flow of water, and monitor whether the physical and chemical properties of paddy field soil will change due to the flow of water, thereby providing a highly controllable experimental environment, allowing researchers to deeply explore the migration differences of microorganisms between different paddy field soils and the influence of environmental factors on their migration patterns, providing a scientific basis for soil ecological management, crop health and environmental remediation, and effectively solving the technical problem of poor controllability of existing soil microecological experimental devices resulting in limited reference value of experimental data.

[0008] As a preferred solution, a bracket structure is connected to the bottom of the cover plate. The bracket structure is used to clamp and secure the inner tube shell, connecting the inner tube shell and the cover plate as a whole. This design further optimizes the bottom structure of the cover plate. By providing a bracket structure, the inner tube shell can be directly connected to the cover plate as a whole. Therefore, the inner tube shell can be directly removed or inserted synchronously through the cover plate, simplifying the overall structure and facilitating operation.

[0009] As a preferred solution, the bracket structure includes an integrally connected connecting rod and clamp portion, with the inner edge of the clamp portion shaped to match the outer edge of the inner tube shell in a concave-convex manner. This design further optimizes the bracket structure within the cover plate, comprising an integrally connected connecting rod and clamp portion. The clamp is preferably designed to be circular in shape, conforming to the outer circumference of the inner tube shell. To ensure a secure clamping and fixing of the inner tube shell, a preferred design is to provide a bracket structure at each end of the cover plate.

[0010] As a preferred solution, the first and second inner tubes are connected integrally via a pipe joint. The connecting ends of the first and second inner tubes are both provided with external threads, and the pipe joint is provided with internal threads, which engage the first and second inner tubes through threaded mating. This design optimizes the docking structure between the two inner tube sections, providing external threads in the docking area of the two inner tube sections and providing a special pipe joint with holes at both ends and internal threads. The threaded docking facilitates opening and assembly.

[0011] As a preferred solution, the ends of the first and second inner tubes, facing away from each other, are both threadedly connected to a pipe cap structure. The ends of the pipe cap structure are hollow, and the filter is fixedly installed inside. This design optimizes the end sealing structure of the two inner tubes. By installing the pipe cap structure at the two ends of the inner tubes facing away from each other, the hollow pipe caps facilitate the flow of water in and out of the inner tubes to promote diffusion. The filter ensures a certain degree of isolation from the soil, making the effect of water flow on diffusion stable and controllable. The threaded structure facilitates the installation and removal of the pipe caps.

[0012] As a preferred solution, the outer tube shell is provided with elastic snap structures on both sides of the outer edge of the upper insertion opening, and the cover plate is provided with a snap-in opening at a position corresponding to the elastic snap-in structure. The elastic snap-in structure and the snap-in opening engage with each other to removably snap the cover plate into the insertion opening. This design optimizes the docking structure between the cover plate and the outer tube shell. The elastic snap-in ensures a certain self-locking effect when the cover plate is in place, ensuring the stability of the inner tube shell.

[0013] As a preferred solution, the elastic snap-fit structure includes a pair of claws, the bases of which are rotatably connected to the outer housing. The ends of the claws are provided with raised bosses that engage with the inner edge of the bayonet via the bosses. This design optimizes the specific design of the elastic snap-fit structure. The main body includes two claws spaced a certain distance apart. The bases of the claws have an articulated structure that rotatably connects to the outer housing. The bosses on the outer sides of the two claws engage with the bayonet via the bosses, achieving a good snap-fit effect.

[0014] As a preferred solution, a torsion spring is installed at the location where the claws are rotatably connected to the outer tube housing. The torsion spring provides elastic force to cause the claws to naturally pop outward to engage with the retaining clip. This design uses the torsion spring to provide elasticity for the two claws to freely pop outward, ensuring that in the normal position, the claws can freely pop out and maintain a stable position between the claws and the retaining clip.

[0015] As a preferred solution, the outer tube shell is provided with support base structures at both ends, and the bottom end surface of the support base structure is provided with anti-slip pads. This design optimizes the placement and stability of the outer tube shell. By providing support base structures at both ends and anti-slip pads, the experimental device can be kept stable, ensuring convenient experimental operation and stable placement. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the decomposition structure of a paddy soil microecological impact experimental device provided by the utility model;

[0017] Figure 2 for Figure 1 Schematic diagram of the overall structure of the experimental device for the impact of soil microecology in rice fields;

[0018] Figure 3 for Figure 2 Schematic diagram of the side view of the experimental device for the impact of soil microecology in rice fields;

[0019] Figure 4 for Figure 2 Schematic diagram of the partial cross-section structure of the experimental device for the impact of soil microecology in rice fields;

[0020] Figure 5 for Figure 3 Schematic diagram of the partially enlarged structure of area A of the experimental device for the impact of soil microecology in rice fields.

[0021] in, Figure 1-Figure 5 middle:

[0022] 1. Outer tube shell; 1-1. Cover plate; 1-2. Insertion port; 1-3. Support seat structure; 1-4. Elastic snap-fit structure; 1-5. Bayonet; 1-6. Connecting rod; 1-7. Clamp; 1-8. Claw; 1-9. Torsion spring; 2. Inner tube shell; 2-1. First inner tube; 2-2. Second inner tube; 2-3. Pipe joint; 2-4. Pipe cap structure; 2-5. Filter. DETAILED DESCRIPTION

[0023] The following is a clear and complete description of the technical solution of the present invention. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0024] refer to Figure 1-Figure 5 The following examples are described, Figure 1 This is a schematic diagram of the decomposition structure of a paddy soil microecological impact experimental device provided by the utility model; Figure 2 for Figure 1 Schematic diagram of the overall structure of the experimental device for the impact of soil microecology in rice fields; Figure 3 for Figure 2 Schematic diagram of the side view of the experimental device for the impact of soil microecology in rice fields; Figure 4 for Figure 2 Schematic diagram of the partial cross-section structure of the experimental device for the impact of soil microecology in rice fields; Figure 5 for Figure 3 Schematic diagram of the partially enlarged structure of area A of the experimental device for the impact of soil microecology in rice fields.

[0025] The paddy soil microecological impact experimental device provided in this embodiment includes a medium-cylindrical outer tube shell 1 and an inner tube shell 2 arranged inside the outer tube shell 1. The top of the outer tube shell 1 is provided with an upper inlet 1-2 for inserting the inner tube shell 2, and the outer tube shell 1 also includes a cover plate 1-1 for closing the upper inlet 1-2; the inner tube shell 2 includes a first inner tube 2-1 and a second inner tube 2-2 connected at the front and separated by a filter screen 2-5. The filter screen 2-5 is provided at both ends of the inner tube shell 2, and is connected to the space between the outer tube shell 1 and the inner tube shell 2 through the filter screen 2-5. The first inner tube 2-1 and the second inner tube 2-2 are respectively used to accommodate the soil sample to be tested and the diffusion component. The space inside the outer tube shell 1 is used to accommodate a liquid used to promote the diffusion of the experimental components.

[0026] The present invention provides a soil experiment device with a layered structure, including inner and outer tube shells 1 that are nested with each other. The space between the outer tube shell 1 and the inner tube shell 2 contains liquid such as water that promotes the diffusion of diffusion components into the soil sample. The inner tube shell 2 mainly includes two tube shells connected end to end, one of which is used to contain the soil sample to be tested, and the other is used to place fertilizers and other pollutants for diffusion into the soil sample. The first inner tube 2-1 and the second inner tube 2-2 are separated by a filter 2-5. The structure of the inlet 1-2 and the cover 1-1 on the outer tube shell 1 facilitates the placement and removal of samples and diffusion components, and can ensure the soil experiment environment. The environment is stable and controllable, which can better simulate the ecological environment of rice fields. It can be known whether rice field soil and fertilizer or pollutant microorganisms will actively migrate and flow with the flow of water, and monitor whether the physical and chemical properties of rice field soil will change due to the flow of water, thereby providing a highly controllable experimental environment. Researchers can deeply explore the migration differences of microorganisms between different rice field soils and the impact of environmental factors on their migration patterns, providing a scientific basis for soil ecological management, crop health and environmental restoration, and effectively solving the technical problem of poor controllability of existing soil microecological experimental devices, resulting in limited reference value of experimental data.

[0027] In the technical solution provided in this embodiment, a bracket structure is connected to the bottom of the cover plate 1-1. The bracket structure is used to clamp and secure the inner tube shell 2, connecting the inner tube shell 2 and the cover plate 1-1 as a whole. This design further optimizes the bottom structure of the cover plate 1-1. By providing a bracket structure, the inner tube shell 2 can be directly connected to the cover plate 1-1 as a whole. Therefore, the inner tube shell 2 can be directly removed or inserted through the cover plate 1-1, simplifying the overall structure and facilitating operation.

[0028] In the technical solution provided in this embodiment, the bracket structure includes an integrally connected connecting rod portion 1-6 and a clamp portion 1-7. The inner edge shape of the clamp portion 1-7 matches the outer edge shape of the inner tube shell 2 in a concave-convex manner. This design further optimizes the bracket structure design within the cover plate 1-1, including the integrally connected connecting rod portion 1-6 and the clamp portion 1-7. The clamp is preferably designed to be circular arc-shaped, consistent with the outer circumferential shape of the inner tube shell 2. To ensure a secure clamping and fixing of the inner tube shell 2, a preferred design is to provide a set of bracket structures at each end of the cover plate 1-1.

[0029] In the technical solution provided by this embodiment, the first inner tube 2-1 and the second inner tube 2-2 are connected integrally via a pipe joint 2-3. The connecting ends of the first inner tube 2-1 and the second inner tube 2-2 are both provided with external threads, and the pipe joint 2-3 is provided with internal threads, which connect the first inner tube 2-1 and the second inner tube 2-2 through threaded engagement. This design optimizes the docking structure between the two inner tube sections by providing external threads in the docking area of the two inner tube sections and providing a pipe joint 2-3 with holes at both ends and internal threads. This threaded docking facilitates opening and assembly.

[0030] In the technical solution provided by this embodiment, the ends of the first inner tube 2-1 and the second inner tube 2-2, facing away from each other, are threadedly connected to a cap structure 2-4. The end of the cap structure 2-4 is hollow, and a filter screen 2-5 is fixedly installed inside. This design optimizes the end sealing structure of the two inner tubes. By installing the cap structure 2-4 at the two ends facing away from each other, the hollow caps facilitate the flow of water in and out of the inner tubes, promoting diffusion. The filter screen 2-5 ensures a certain degree of isolation from the soil, ensuring a stable and controllable effect of water flow on diffusion. The threaded structure facilitates the installation and removal of the caps.

[0031] In the technical solution provided by this embodiment, outer tube housing 1 is provided with elastic snap structures 1-4 on both sides of the outer edge of upper insertion opening 1-2. Cover plate 1-1 is provided with snap openings 1-5 at positions corresponding to elastic snap structures 1-4. The elastic snap structures 1-4 engage with the snap openings, allowing cover plate 1-1 to be removably fastened to insertion opening 1-2. This design optimizes the docking structure between cover plate 1-1 and outer tube housing 1. The elastic snaps provide a certain self-locking effect when cover plate 1-1 is properly assembled, ensuring the stability of inner tube housing 2.

[0032] In the technical solution provided in this embodiment, the elastic snap-fit structure 1-4 includes a pair of claws 1-8. The bases of the claws 1-8 are rotatably connected to the outer housing 1. The ends of the claws 1-8 are provided with raised bosses that engage with the inner edge of the bayonet 1-5 through the bosses. This design optimizes the specific design of the elastic snap-fit structure 1-4. The main body includes two claws 1-8 spaced a certain distance apart. The bases of the claws 1-8 have a hinged structure that is rotatably connected to the outer housing 1. The bosses on the outer sides of the two claws 1-8 engage with the bayonet 1-5 through the bosses, achieving a good snap-fit effect.

[0033] In the technical solution provided in this embodiment, a torsion spring 1-9 is installed at the location where the claw 1-8 is rotatably connected to the outer tube housing 1. The torsion spring 1-9 provides elastic force, causing the claw 1-8 to naturally pop outward to engage with the retaining notch 1-5. This design, through the torsion spring 1-9, provides the elasticity that allows the two claws 1-8 to freely pop outward, ensuring that when in the normal position, the claws 1-8 freely pop out and maintain a stable position between the retaining notch 1-5.

[0034] In the technical solution provided in this embodiment, the outer tube shell 1 is provided with support base structures 1-3 at both ends, and the bottom end surfaces of the support base structures 1-3 are provided with anti-slip pads. This design optimizes the placement and stability of the outer tube shell 1. By providing support base structures 1-3 at both ends and providing anti-slip pads, the experimental device can be kept stable, ensuring convenient experimental operation and stable placement.

[0035] Although the utility model is disclosed as above, the scope of protection of the utility model is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of protection of the utility model.

Claims

1. A paddy soil microecological impact experimental device, characterized in that: The invention comprises a cylindrical outer shell (1) and an inner shell (2) arranged inside the outer shell (1); the top of the outer shell (1) is provided with an upper inlet (1-2) for inserting the inner shell (2); the outer shell (1) further comprises a cover plate (1-1) for closing the upper inlet (1-2); the inner shell (2) comprises a first inner tube (2-1) and a second inner tube (2-2) which are connected at the front and separated by a filter (2-5); the filter (2-5) is provided at both ends of the inner shell (2), and the filter is communicated with the space between the outer shell (1) and the inner shell (2) through the filter (2-5); the first inner tube (2-1) and the second inner tube (2-2) are respectively used to accommodate a soil sample to be detected and a diffusion component; the space inside the outer shell (1) is used to accommodate a liquid for promoting the diffusion of the experimental component.

2. The paddy soil microecological impact experimental device according to claim 1, characterized in that: The bottom of the cover plate (1-1) is connected to a hanging bracket structure, and the hanging bracket structure is used to clamp and fix the inner tube shell (2), thereby connecting the inner tube shell (2) and the cover plate (1-1) into one piece.

3. The paddy field soil microecological impact experimental device according to claim 2, characterized in that: The hanger structure comprises a connecting rod portion (1-6) and a clamp portion (1-7) connected integrally, and the inner edge shape of the clamp portion (1-7) is concave-convex matched with the outer edge shape of the inner tube shell (2).

4. The paddy soil microecological impact experimental device according to claim 3, characterized in that: The first inner tube (2-1) and the second inner tube (2-2) are connected as a whole via a pipe joint (2-3); the ends of the first inner tube (2-1) and the second inner tube (2-2) where they meet are both provided with an external thread structure; the pipe joint (2-3) is provided with an internal thread structure, and the first inner tube (2-1) and the second inner tube (2-2) are connected to each other via threaded engagement.

5. The paddy field soil microecological impact experimental device according to claim 4, characterized in that: The ends of the first inner tube (2-1) and the second inner tube (2-2) that are separated from each other are both threadedly connected to a tube cap structure (2-4); the end of the tube cap structure (2-4) is hollow, and the filter screen (2-5) is fixedly installed inside.

6. The paddy field soil microecological impact experimental device according to any one of claims 1 to 5, characterized in that: The outer tube shell (1) is provided with elastic snap-fit structures (1-4) on both sides of the outer edge of the upper insertion opening (1-2); the cover plate (1-1) is provided with a snap-fit opening (1-5) at a position corresponding to the elastic snap-fit structure (1-4); and the cover plate (1-1) is detachably snap-fitted to the insertion opening (1-2) through the snap-fitting engagement between the elastic snap-fit structure (1-4) and the snap-fit.

7. The paddy field soil microecological impact experimental device according to claim 6, characterized in that: The elastic buckle structure (1-4) comprises a pair of claws (1-8), the bases of the claws (1-8) being rotatably linked to the outer tube shell (1), and the ends of the claws (1-8) being provided with raised bosses which are locked in position with the inner edge of the bayonet (1-5) via the bosses.

8. The paddy field soil microecological impact experimental device according to claim 7, characterized in that: A torsion spring (1-9) is installed at the position where the clamping claw (1-8) is rotatably connected to the outer tube shell (1), and the torsion spring (1-9) provides elastic force to cause the clamping claw (1-8) to naturally pop outward to engage with the bayonet (1-5) in a limiting manner.

9. The paddy soil microecological impact experimental device according to claim 6, characterized in that: The outer tube shell (1) is provided with support seat structures (1-3) at both ends thereof, and the bottom end surface of the support seat structure (1-3) is provided with an anti-slip pad.

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