Undisturbed soil sampling device for soil nitrogen conversion in-situ research
By designing the soil soil extraction device with angle steel base, beveled sleeve and L-shaped shaker, the problem of time-consuming and labor-intensive extraction of soil samples in the prior art is solved, and rapid and labor-saving soil sample extraction and Depth adaptability improves the efficiency and data authenticity of soil nitrogen conversion research.
Patent Information
- Application Number
- CN202420668795.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-02
AI Technical Summary
In the prior art, during the process of removing soil samples in culture tubes for in-situ research on soil nitrogen conversion, the insertion and removal of slender sticks is time-consuming and labor-intensive, especially in deep soil, and the small diameter of the culture tube causes limited operation. , affects work efficiency.
An original soil extraction device including an angle steel base, a beveled sleeve, a cylindrical nut, a screw and an L-shaped shaker handle was designed. By rotating the L-shaped shaker, the screw pushes the disc and pushes the soil in the angle steel base through an inclined. Remove the cut sleeve to adapt to soil research at different depths.
It realizes rapid and labor-saving soil samples removal, adapts to different in-depth research, and improves the authenticity and research depth of the experimental data.
Smart Images
Figure CN222212427U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of soil nutrient research, in particular to an original soil sampling device used for in-situ research on soil nitrogen transformation. Background Art
[0002] Nitrogen is the main nutrient element that limits the growth of organisms in the ecosystem. It mainly exists in the form of organic nitrogen in the soil. Organic nitrogen is converted into inorganic nitrogen that can be directly absorbed and utilized by plants under the mineralization of soil microorganisms. Part of the inorganic nitrogen in the soil is absorbed and utilized by crops, and the other part enters the water due to surface runoff, or penetrates into deep soil and groundwater through leaching, or enters the atmosphere through ammonia volatilization and denitrification. In agricultural and forestry production, people use a large amount of nitrogen fertilizer to increase production, which may aggravate eutrophication of water bodies, reduce fertilizer utilization, and aggravate air pollution. Therefore, studying the soil nitrogen transformation process is of great significance for improving fertilizer utilization, reducing air pollution, and promoting the sustainable development of agricultural and forestry production.
[0003] The laboratory cultivation method is currently a commonly used method to study soil nitrogen transformation. Although it can explain the mineralization mechanism and establish a specific mineralization model, the laboratory cultivation conditions cannot restore the real environment in the field, and the data obtained lack authenticity and reliability, making it difficult to apply in practice. The soil in situ cultivation method sets up a cultivation soil column in the field, and obtains the soil nitrogen transformation dynamics by taking the difference between the value of the previous cultivation and the value of the next cultivation. Compared with the laboratory cultivation method, it is more authentic and reliable.
[0004] However, currently, when taking out soil samples from the inside of the culture tube, a thin and long stick (such as a screwdriver, an iron rod, etc.) is usually inserted into the inside to take it out. This method is time-consuming and laborious during the soil extraction process, and is more difficult when removing deep soil (such as 20-40 cm). In addition, the diameter of the culture tube used for in situ culture is usually 2.5-6 cm, and the operation of the stick in the culture tube is limited, affecting work efficiency.
[0005] For this purpose, an original soil sampling device is proposed to take out the soil sample inside the culture tube. Utility Model Content
[0006] 1. Technical issues to be resolved
[0007] In order to overcome the shortcomings of the existing technology, an undisturbed soil sampling device for in-situ research on soil nitrogen transformation is proposed to solve the problem that when taking out the soil sample from the inside of the culture tube, a slender stick (such as a screwdriver, an iron rod, etc.) is usually inserted into the inside to take it out. This method is time-consuming and laborious in the soil sampling process, and is more difficult when taking out deep soil (such as 20-40 cm). In addition, the diameter of the culture tube used for in-situ culture is usually 2.5-6 cm, and the operation of the stick in the culture tube is limited, affecting the work efficiency.
[0008] (II) Technical solution
[0009] The utility model is realized by the following technical scheme: the utility model proposes an original soil sampling device for in-situ research on soil nitrogen transformation, comprising an angle steel base,
[0010] A beveled sleeve is fixedly installed inside the rear end of the angle steel base, and a cylindrical nut is fixedly installed inside the front end of the angle steel base. A screw rod running through both sides is rotatably connected inside the cylindrical nut. The screw rod is movably connected to a disk at the inner end of the angle steel base, and an L-shaped rocker handle is connected to the outer end of the screw rod.
[0011] Furthermore, the angle steel base is configured to be an L-shaped opening.
[0012] Furthermore, the outer side surface of the beveled sleeve is inclined at 45°.
[0013] Furthermore, a through screw hole is provided in the middle of the cylindrical nut to be connected to the screw rod, a through hole is provided in the middle of the beveled sleeve, and an annular hole cover is provided on the outer side of the beveled sleeve.
[0014] Furthermore, the inner diameter of the annular hole cover is smaller than the diameter of the chamfered sleeve hole.
[0015] Furthermore, a semicircular pipe sheet is welded at the middle end of the inner part of the angle steel base.
[0016] Furthermore, a first balancing frame and a second balancing frame are symmetrically fixedly connected to the outer sides of both ends of the angle steel base.
[0017] (III) Beneficial effects
[0018] Compared with the prior art, the utility model has the following beneficial effects:
[0019] In the utility model, the L-shaped rocker handle is rotated so that the disc inside the screw rod pushes the culture soil inside the angle steel base out through the beveled sleeve. The soil taking device is easy to operate and can quickly and completely take out the soil sample in the culture tube, saving time and effort.
[0020] In the utility model, when the length of the culture tube needs to be changed according to different test requirements, the length of the angle steel base and the screw rod can be adjusted to adapt to nitrogen transformation research in soils of different depths, rather than being limited to shallow soils, thereby improving the authenticity of the test data and enhancing the depth of the test research. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:
[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0023] Figure 2 It is a schematic diagram of the right side structure of the utility model;
[0024] Figure 3 This is a schematic diagram of the culture tube installation work structure of the utility model;
[0025] Figure 4 This is a schematic diagram of the disc structure of the utility model;
[0026] In the figure: angle steel base-1, beveled sleeve-2, cylindrical nut-3, screw-4, L-shaped crank handle-5, first balance frame-61, second balance frame-62, annular hole cover-7, disc-8, semicircular pipe segment-9, screw hole-10. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0028] See also Figure 1-Figure 4 The utility model provides an original soil taking device for in-situ research on soil nitrogen transformation, including an angle steel base 1, and the angle steel base 1 is set to an L-shaped opening shape with an outer opening, so that a culture tube for culturing original soil can be placed inside the angle steel base 1 for taking out, and a new culture tube for culturing original soil can be replaced after taking out to take out soil. A semicircular tube piece 9 is welded at the middle end of the interior of the angle steel base 1, so that the semicircular tube piece 9 can position the culture tube for culturing original soil, so that the culture tube will not be misplaced when taking out, and the soil can accurately enter the hole inside the beveled sleeve 2 when pushed outward. A first balance frame 61 and a second balance frame 62 are symmetrically fixedly connected to the outer sides of the two ends of the angle steel base 1, so as to enhance the stability of the device and achieve a better effect when pushing out.
[0029] A beveled sleeve 2 with an outer side inclined at 45° is fixedly installed inside the tail end of the angle steel base 1. The beveled sleeve 2 is inclined to make it more convenient to push out the soil. A through hole is provided in the middle of the beveled sleeve 2, so that the culture tube is pushed into the hole under force, and an annular hole cover 7 is provided on the outside of the beveled sleeve 2, and the internal aperture size of the annular hole cover 7 is smaller than the aperture size of the hole of the beveled sleeve 2, so that the culture tube is subjected to the force of the internal hole of the annular hole cover 7 after entering the hole, so as to prevent the culture tube from being pushed outward again, so as to continuously push out the soil inside the culture tube. A cylindrical nut 3 is provided with a screw hole 10 penetrating through the middle of the cylindrical nut 3, and a screw rod 4 is rotatably connected inside the screw hole 10. The screw rod 4 is located at the inner end of the angle steel base 1 and is movably connected to a disc 8, and an L-shaped rocker handle 5 is connected to the outer end of the screw rod 4. The screw rod 4 can be rotated by the L-shaped rocker handle 5 to push the disc 8 to move, so that the disc 8 pushes the soil inside the culture tube outward, and a concave circular hole is arranged inside the disc 8, so that the disc 8 and the screw rod 4 are plugged in and out, and after the disc 8 and the soil are subjected to force, the screw rod 4 rotates in the concave circular hole inside the disc 8 due to the concave circular hole, thereby reducing the driving force.
[0030] Working principle: When in use, rotate the L-shaped rocker handle 5 to make the screw 4 rotate under the action of the screw hole 10, so that the screw 4 pushes the disc 8 to move inside the angle steel base 1, and after the disc 8 contacts the culture soil, it rotates in the concave circular hole plug-in and pull-out manner so that the disc 8 will not rotate under force, and the disc 8 continues to push inward, thereby pushing the culture tube into the hole of the beveled sleeve 2 under the action of the semicircular tube piece 9, and then preventing the culture tube from moving outward again under the action of the annular hole cover 7, and then pushing the internal soil out under force to complete the work.
[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.
Claims
1. An undisturbed soil sampling device for in-situ research on soil nitrogen transformation, comprising an angle steel base (1), characterized in that: A beveled sleeve (2) is fixedly installed inside the rear end of the angle steel base (1), a cylindrical nut (3) is fixedly installed inside the front end of the angle steel base (1), a screw rod (4) that runs through both sides is rotatably connected inside the cylindrical nut (3), a disc (8) is movably connected to the inner end of the screw rod (4) located inside the angle steel base (1), and an L-shaped crank handle (5) is connected to the outer end of the screw rod (4).
2. The undisturbed soil sampling device for in-situ research on soil nitrogen transformation according to claim 1, characterized in that: The angle steel base (1) is arranged in an L-shaped opening shape.
3. The undisturbed soil sampling device for in-situ research on soil nitrogen transformation according to claim 1, characterized in that: The outer side surface of the beveled sleeve (2) is inclined at 45°.
4. The undisturbed soil sampling device for in-situ research on soil nitrogen transformation according to claim 1, characterized in that: The cylindrical nut (3) is provided with a through screw hole (10) in the middle thereof for connection with the screw rod (4), the beveled sleeve (2) is provided with a through hole in the middle thereof, and an annular hole cover (7) is provided on the outer side of the beveled sleeve (2).
5. The undisturbed soil sampling device for in-situ research on soil nitrogen transformation according to claim 4, characterized in that: The internal aperture size of the annular hole cover (7) is smaller than the aperture size of the hole of the beveled sleeve (2).
6. The undisturbed soil sampling device for in-situ research on soil nitrogen transformation according to claim 1, characterized in that: A semicircular pipe sheet (9) is welded to the middle end of the interior of the angle steel base (1).
7. The undisturbed soil sampling device for in-situ research on soil nitrogen transformation according to claim 1, characterized in that: A first balancing frame (61) and a second balancing frame (62) are symmetrically fixedly connected to the outer sides of both ends of the angle steel base (1).