Farmland soil leachate collecting device

Abstract

The utility model discloses a farmland soil leachate collecting device which comprises an installation cylinder with the bottom sealed. The collecting mechanism comprises a filtrate collecting cylinder and a filtering assembly which is arranged on the filtrate collecting cylinder and used for filtering soil leachate, and the filtrate collecting cylinder is fixedly arranged on the mounting cylinder in a sleeving mode and communicates with the mounting cylinder; the liquid storage cylinder can be driven to slide and is arranged at the cylinder bottom of the mounting cylinder in a manner of being taken out, and the liquid storage cylinder is communicated with the mounting cylinder and is used for storing the filtered soil leachate; the farmland soil leachate collecting device provided by the utility model can be beneficial to improving the construction efficiency, reducing disturbance to farmland soil, reducing the cost investment and being beneficial to popularization and application in large-area farmland.

Description

Technical Field

[0001] This utility model relates to the technical field of soil leachate collection devices, specifically to a farmland soil leachate collection device. Background Technology

[0002] Soil leachate, a solution produced by soil leaching or seepage, is an important component of soil research. Researchers can analyze soil leachate to explore processes such as soil microbial ecology, nutrient cycling, and the leaching of pollutants like heavy metals, providing scientific evidence for soil improvement and sustainable agricultural development. Currently, the collection of farmland soil leachate typically involves burying a leachate collection device at a predetermined sampling depth. Simultaneously, a separate pumping pipe extending to the soil surface is installed on the side of the collection device, connected to a water pump to extract the leachate. This method suffers from drawbacks. The separate pumping pipe requires careful consideration of its routing, causing significant soil disturbance and resulting in low construction efficiency. Furthermore, the need for a pump increases costs, hindering its widespread application in large-scale farmland. In addition, since the leachate collection device is buried entirely in the soil, it is not easy to observe the progress of soil leachate collection. Of course, some related technologies use water level sensors to monitor water levels, but this increases the cost and is not conducive to its widespread application in farmland.

[0003] Therefore, it is necessary to develop and design a new soil leachate collection device, which is expected to improve construction efficiency, reduce disturbance to farmland soil, and reduce cost input, thereby facilitating its widespread application in large-scale farmland. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a farmland soil leachate collection device, which can improve construction efficiency, reduce disturbance to farmland soil, reduce cost input, and facilitate its promotion and application in large-scale farmland.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a farmland soil leachate collection device, comprising: an installation cylinder with a sealed bottom; a collection mechanism, including a filtrate collection cylinder and a filter assembly disposed on the filtrate collection cylinder for filtering soil leachate, wherein the filtrate collection cylinder is fixedly disposed on the installation cylinder and communicates with the installation cylinder; and a storage cylinder, which is drivable, slidable, and removable, disposed at the bottom of the installation cylinder, and the storage cylinder is communicated with the installation cylinder for storing the filtered soil leachate.

[0006] Furthermore, the liquid storage cylinder includes a cylinder body and a liquid storage cylinder cover fixed to the top of the cylinder body, and a lifting rod extending upward is fixed to the top of the liquid storage cylinder cover.

[0007] Furthermore, the liquid storage cylinder cap is provided with multiple liquid passage holes evenly distributed along the circumference.

[0008] Furthermore, a mounting cylinder cover is detachably and fixedly connected to the top of the mounting cylinder.

[0009] Furthermore, the top of the lifting rod abuts against the bottom surface of the mounting cylinder cover.

[0010] Furthermore, the filtration assembly includes a first annular mesh plate fixed to the top of the filtrate collection tube, a second annular mesh plate disposed below the first annular mesh plate, and a sand and gravel layer filled between the first annular mesh plate and the second annular mesh plate.

[0011] Furthermore, a first mesh is attached to and fixed on the top surface of the first annular perforated plate, and a second mesh is attached to and fixed on the top surface of the second annular perforated plate.

[0012] Furthermore, a guide tube is fixedly provided at the bottom of the filtrate collection tube. The inlet end of the guide tube is connected to the inside of the filtrate collection tube, and the outlet end of the guide tube is connected to the inside of the mounting tube. The outlet end of the guide tube is higher than the top surface of the storage tube.

[0013] Furthermore, a filter plate is provided at the inlet or outlet end of the guide pipe.

[0014] Furthermore, the lower part of the filtrate collection tube has an inverted conical structure.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] The farmland soil leachate collection device provided by this utility model can improve construction efficiency, reduce disturbance to farmland soil, reduce costs, and facilitate its widespread application in large-scale farmland. Specifically, this device allows for quick removal of the storage cylinder from the installation cylinder to extract the soil leachate without the need for pumping pipes or other components, thus improving the efficiency of installation and reducing disturbance to the farmland soil. The elimination of the need for a water pump further reduces costs and facilitates its widespread adoption in large-scale farmland areas. Furthermore, the leachate collection cylinder is fixedly mounted on the installation cylinder, resulting in a compact structure that requires less excavation pit, minimizing land use and soil disturbance, further improving construction efficiency. Additionally, the progress of leachate collection can be observed from the top of the installation cylinder without the need for water level sensors, which also helps control costs and facilitates its widespread adoption in large-scale farmland areas. Of course, the filter components can prevent impurities from entering the filtrate collection tube and causing blockage, ensuring the normal use of the device. They can also reduce the need for repeated filtration of soil leachate during later soil leachate research, thus ensuring construction efficiency.

[0017] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the cross-sectional structure of the present invention;

[0019] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the isometric structure of this utility model;

[0021] Reference numerals: 1-Installation cylinder; 2-Filtrate collection cylinder; 201-Guide pipe; 201a-Filter plate; 3-Filter assembly; 301-First annular mesh plate; 302-Second annular mesh plate; 303-Sand and gravel layer; 304-First mesh; 305-Second mesh; 4-Storage cylinder; 401-Cylinder body; 402-Storage cylinder cover; 402a-Liquid passage hole; 5-Lifting rod; 6-Installation cylinder cover. Detailed Implementation

[0022] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in the following embodiments are only for illustrating the basic concept of this utility model. Unless otherwise specified, the following embodiments and features in the embodiments can be combined with each other.

[0023] Please see Figure 1-3 This embodiment discloses a farmland soil leachate collection device, comprising: a bottom-sealed installation cylinder 1, a collection mechanism, and a storage cylinder 4. The collection mechanism includes a filtrate collection cylinder 2 and a filter assembly 3 disposed on the filtrate collection cylinder 2 for filtering soil leachate. The filtrate collection cylinder 2 is fixedly fitted onto the installation cylinder 1 and communicates with it. The storage cylinder 4 is slidably and removably disposed at the bottom of the installation cylinder 1, and communicates with the installation cylinder 1 to store the filtered soil leachate. It is understood that the top of the installation cylinder 1 is open to allow the storage cylinder 4 to be removed. The bottom-sealed installation cylinder 1 prevents soil from entering the installation cylinder 1 and ensures that the storage cylinder 4 can be installed correctly. It also prevents leakage of the soil leachate collected by the filtrate collection cylinder 2, thus ensuring efficient soil leachate collection. Of course, it is understandable that the connection between the filtrate collection tube 2 and the installation tube 1 means that their internal cavities are interconnected, allowing the soil leachate collected by the filtrate collection tube 2 to flow into the internal cavity of the installation tube 1. Furthermore, it is understandable that a certain gap needs to be provided between the storage tube 4 and the inner wall of the installation tube 1 to ensure the smooth sliding of the storage tube 4. Since the storage tube 4 is located at the bottom of the installation tube 1, the filtrate collected by the filtrate collection tube 2 will preferentially fill the storage tube 4, thus ensuring collection efficiency. The filter assembly 3 can use existing filter screens or similar structures to filter and collect the soil leachate, ensuring the normal operation of the device.

[0024] The collection principle of the above-mentioned farmland soil leachate collection device is as follows: During use, the collection mechanism is buried at the set collection depth. The length of the installation cylinder 1 can be adapted to the burial depth, ensuring that the top of the installation cylinder 1 is higher than the top of the soil layer. Of course, for paddy fields with water, the top of the installation cylinder 1 needs to be higher than the water surface. The soil leachate collected by the leachate collection cylinder 2 first flows into the installation cylinder 1, and then into the storage cylinder 4. After a certain period of time (the specific time depends on the soil leachate production efficiency at the measurement site), the storage cylinder 4 can be directly removed to complete the extraction of the soil leachate. After extraction, the storage cylinder 4 can be placed back in for long-term repeated use. Multiple collection points can be set up in different areas of the farmland for individual sampling, eliminating the need for water pumps, etc., making installation convenient and facilitating its widespread application in large-scale farmland areas.

[0025] The above-mentioned farmland soil leachate collection device can improve construction efficiency, reduce disturbance to farmland soil, reduce costs, and facilitate its widespread application in large-scale farmland. Specifically, this farmland soil leachate collection device allows for quick removal of the storage cylinder 4 from the installation cylinder 1 to extract the soil leachate without the need for pumping pipes or other components, thus improving the efficiency of installation and reducing disturbance to the farmland soil. It eliminates the need for a water pump, reducing costs and facilitating its widespread adoption in large-scale farmland areas. Furthermore, the leachate collection cylinder 2 is fixedly mounted on the installation cylinder 1, resulting in a compact overall structure. This reduces the size of the pit required for installation, minimizing land use and soil disturbance, further improving construction efficiency. Additionally, the progress of soil leachate collection can be observed through the top of the installation cylinder 1 without the need for water level sensors, which also helps control costs and facilitates its widespread adoption in large-scale farmland areas. Of course, the filter component 3 can prevent impurities from entering the filtrate collection tube and causing blockage, ensuring the normal use of the device. It can also reduce the need for repeated filtration of soil leachate during later soil leachate research, thus ensuring construction efficiency.

[0026] In this embodiment, the liquid storage cylinder 4 includes a cylinder body 401 and a liquid storage cylinder cover 402 fixed to the top of the cylinder body 401. A lifting rod 5 extending upwards is fixed to the top of the liquid storage cylinder cover 402. Specifically, both the liquid storage cylinder 4 and the liquid storage cylinder cover 402 are made of PVC pipe, and the liquid storage cylinder cover 402 is heat-welded to the liquid storage cylinder 4. By providing the liquid storage cylinder cover 402 and the lifting rod 5 at the top of the cylinder body 401, the liquid storage cylinder 4 can be removed using the lifting rod 5. This design offers good structural strength, reliability, durability, and ease of operation.

[0027] In this embodiment, a plurality of liquid passage holes 402a are evenly distributed along the circumference of the liquid storage cylinder cap 402. These evenly distributed liquid passage holes 402a allow communication between the liquid storage cylinder 4 and the inner cavity of the mounting cylinder 1. Furthermore, the evenly distributed design of the liquid passage holes 402a minimizes the weakening of the strength of the liquid storage cylinder cap 402, thus ensuring the overall structural strength of the liquid storage cylinder 4 and improving its durability.

[0028] In this embodiment, a detachable cover 6 is fixedly connected to the top of the mounting cylinder 1. Specifically, the cover 6 is threadedly connected to the mounting cylinder 1. By providing a detachable cover 6, rainwater can be prevented from falling into the mounting cylinder 1, and insects or dust can also be prevented from falling into the mounting cylinder 1. It also facilitates the later opening of the cover 6 and removal of the liquid storage cylinder 4.

[0029] In this embodiment, the top of the lifting rod 5 abuts against the bottom surface of the mounting cylinder cover 6. By abutting the top of the lifting rod 5 against the bottom surface of the mounting cylinder cover 6, the liquid storage cylinder 4 can be tightened and limited, ensuring that the liquid storage cylinder 4 can be effectively installed to the bottom of the mounting cylinder 1. The overall structure is simple and the limiting is reliable.

[0030] In this embodiment, the filter assembly 3 includes a first annular mesh plate 301 fixed to the top of the filtrate collection cylinder 2, a second annular mesh plate 302 disposed below the first annular mesh plate 301, and a sand and gravel layer 303 filled between the first annular mesh plate 301 and the second annular mesh plate 302. Specifically, the first annular mesh plate 301 and the second annular mesh plate 302 are both glued to the filtrate collection cylinder 2. The first annular mesh plate 301 and the second annular mesh plate 302 form a filling space for the sand and gravel layer 303, which has a certain compressive strength and can prevent the sand and gravel layer 303 from being squeezed and compacted by the soil layer, thus ensuring the collection efficiency of soil infiltration water. Here, the sand and gravel layer 303 is made of quartz sand. The first annular mesh plate 301 and the second annular mesh plate 302 are disposed at the top of the filtrate collection cylinder 2, which has a simple structure, good reliability, is not prone to clogging, and has a large collection area.

[0031] In this embodiment, a first mesh 304 is attached and fixed to the top surface of the first annular mesh plate 301, and a second mesh 305 is attached and fixed to the top surface of the second annular mesh plate 302. Specifically, both the first mesh 304 and the second mesh 305 are fixed with cable ties, although adhesive bonding can also be used. Since the mesh openings on the first annular mesh plate 301 are typically large, the first mesh 304 reduces the risk of soil particles falling from the top. Since the mesh openings on the second annular mesh plate 302 are typically large, the second mesh 305 prevents sand particles from the sand and gravel layer 303 from falling into the filtrate collection cylinder 2, thus improving the filtration effect.

[0032] In this embodiment, a guide pipe 201 is fixedly installed at the bottom of the filtrate collection cylinder 2. The inlet end of the guide pipe 201 is connected to the inside of the filtrate collection cylinder 2, and the outlet end of the guide pipe 201 is connected to the inside of the installation cylinder 1. The outlet end of the guide pipe 201 is higher than the top surface of the storage cylinder 4. Specifically, the guide pipe 201 is an L-shaped elbow pipe made of PVC. By using the guide pipe 201 to connect the filtrate collection cylinder 2 and the installation cylinder 1, the structure is simple. Setting the outlet end of the guide pipe 201 higher than the top surface of the storage cylinder 4 can prevent the storage cylinder 4 from obstructing the guide pipe 201, thus ensuring the smooth flow of soil leachate.

[0033] In this embodiment, a filter plate 201a is provided at the inlet or outlet end of the guide pipe 201. Here, the filter plate 201a is a PVC plate with mesh holes for filtration. By providing the filter plate 201a at the inlet or outlet end of the guide pipe 201, the soil leachate collected by the filtrate collection cylinder 2 can be filtered a second time, improving the filtration effect. At the same time, it can prevent particulate impurities from entering the installation cylinder 1 and affecting the sliding of the storage cylinder 4, thus improving the overall reliability of the device.

[0034] In this embodiment, the lower part of the filtrate collection tube 2 has an inverted conical structure. This inverted conical structure facilitates the convergence and discharge of soil leachate, thereby improving collection efficiency.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A device for collecting leachate from farmland soil, characterized in that, include: A bottom-sealed mounting cylinder (1); the top of the mounting cylinder (1) is detachably and fixedly connected to a mounting cylinder cover (6); The collection mechanism includes a filtrate collection tube (2) and a filter assembly (3) disposed on the filtrate collection tube (2) for filtering soil leachate. The filtrate collection tube (2) is fixedly disposed on the mounting tube (1) and communicates with the mounting tube (1). The storage cylinder (4) is slidable and removable and is located at the bottom of the mounting cylinder (1), and the storage cylinder (4) is connected to the mounting cylinder (1) for storing the soil leachate after filtration treatment; A guide tube (201) is fixed at the bottom of the filtrate collection tube (2). The inlet end of the guide tube (201) is connected to the inside of the filtrate collection tube (2), and the outlet end of the guide tube (201) is connected to the inside of the mounting tube (1). The outlet end of the guide tube (201) is higher than the top surface of the storage tube (4).

2. The farmland soil leachate collection device according to claim 1, characterized in that: The liquid storage cylinder (4) includes a cylinder body (401) and a liquid storage cylinder cover (402) fixed to the top of the cylinder body (401). The top of the liquid storage cylinder cover (402) is fixed with an upwardly extending lifting rod (5).

3. The farmland soil leachate collection device according to claim 2, characterized in that: The liquid storage cylinder cap (402) has multiple liquid passage holes (402a) evenly distributed along the circumference.

4. The farmland soil leachate collection device according to claim 2, characterized in that: The top of the lifting rod (5) abuts against the bottom surface of the mounting cylinder cover (6).

5. The farmland soil leachate collection device according to claim 1, characterized in that: The filter assembly (3) includes a first annular mesh plate (301) fixed at the top of the filtrate collection tube (2), a second annular mesh plate (302) disposed at the lower part of the first annular mesh plate (301), and a sand and gravel layer (303) filled between the first annular mesh plate (301) and the second annular mesh plate (302).

6. The farmland soil leachate collection device according to claim 5, characterized in that: The top surface of the first annular mesh plate (301) is covered and fixed with a first mesh (304), and the top surface of the second annular mesh plate (302) is covered and fixed with a second mesh (305).

7. The farmland soil leachate collection device according to claim 1, characterized in that: A filter plate (201a) is provided at the inlet or outlet end of the guide pipe (201).

8. The farmland soil leachate collection device according to claim 1, characterized in that: The lower part of the filtrate collection tube (2) has an inverted conical structure.

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