A field portable combined quantitative soil seepage collection device

Abstract

The present invention relates to the field of soil seepage collection, and specifically discloses a field portable combined quantitative soil seepage collection device, comprising: a seepage collection mechanism, including a soil leaching column assembly, and a seepage collection bottle assembly disposed at the bottom of the soil leaching column assembly; the soil leaching column assembly includes a soil leaching column body, and a seepage liquid conduit is fixedly connected to the lower end of the soil leaching column body; by providing collection holes in different soil layers, the field portable combined quantitative soil seepage collection device exhibits extremely high flexibility and adaptability. It can flexibly adjust the drilling distance of the soil solution collection holes according to specific conditions such as land use types and tillage layer thicknesses to ensure the accuracy and pertinence of monitoring. At the same time, the device can also be adjusted accordingly according to the characteristics of different soil types and land types, so as to realize long-term and effective monitoring of soil seepage.

Description

Technical Field

[0001] The invention belongs to the field of soil seepage collection, and particularly relates to a field portable combined quantitative soil seepage collection device. Background Art

[0002] Soil seepage, as the main transmission path of farmland soil pollutants, not only carries the flow and transmission of pollutants, but also is the core field of the research on the soil-water-crop interface. In view of the key role of soil seepage in the ecological environment, China is accelerating the construction and improvement of the ecological environment monitoring system to strengthen the accuracy and timeliness of monitoring data. However, in the field environment, quantitative monitoring and rapid acquisition of soil seepage water, especially for the research on the migration paths of farmland pollutants such as heavy metals, still face many challenges.

[0003] First of all, the slowness of the soil seepage process requires long-term and stable monitoring. However, existing long-term buried field seepage monitoring devices, such as sensors or samplers, often lead to distorted monitoring data due to the influence of environmental factors (such as equipment failures, corrosion, blockages, etc.), seriously affecting the accuracy and reliability of research.

[0004] Secondly, the seepage monitoring of multi-layer soils further exacerbates the technical difficulty. The differences in soil properties between different soil layers require that the seepage monitoring device can accurately adapt to and distinguish the seepage characteristics of each soil layer. The setting of multi-layer seepage sensors not only increases the complexity of the instrument equipment, but also improves the difficulty of technical operation, posing higher requirements for the professional skills of operators.

[0005] In addition, the collection of heavy metal samples at different soil depths is also a major challenge. The distribution of heavy metals in the soil is often uneven and complex. How to accurately and efficiently collect heavy metal samples from each soil layer has become the key to evaluating the output flux of farmland pollutants and formulating pollution control strategies. Summary of the Invention

[0006] In order to solve the above technical problems, the invention provides a field portable combined quantitative soil seepage collection device to solve the problems that existing long-term buried field seepage monitoring devices, such as sensors or samplers, often lead to distorted monitoring data due to the influence of environmental factors (such as equipment failures, corrosion, blockages, etc.).

[0007] A field portable combined quantitative soil seepage collection device includes:

[0008] A seepage collection mechanism, including a soil leaching column assembly and a seepage collection bottle assembly arranged at the bottom of the soil leaching column assembly;

[0009] The soil leaching column assembly includes a soil leaching column body. A seepage liquid conduit is fixedly connected to the lower end of the soil leaching column body. A filter screen is provided inside the soil leaching column body near the bottom wall. A plurality of extension conduits are also provided outside the soil leaching column body. One end of the extension conduit extends into the soil leaching column body and is horizontally fixedly connected to a soil solution sampling head. A sampling joint is also provided at the other end of the extension conduit. The position where the extension conduit and the soil leaching column body intersect is sealed with glass glue.

[0010] The seepage collection bottle assembly includes a seepage collection bottle body. An air pressure balance tube is penetrated through the seepage collection bottle body. A silica gel protective sleeve is detachably provided at the upper end of the air pressure balance tube.

[0011] The bottom of the seepage liquid conduit always extends into the seepage collection bottle body. The air pressure balance tube extends into the seepage collection bottle body near the bottom wall.

[0012] Preferably, the sampling joint and the silica gel protective sleeve are located on the ground surface, and the soil layer filled inside the soil leaching column body is consistent with the external soil layer.

[0013] Preferably, a liquid level sensor, a turbidity sensor, a power supply module and a wireless data transmission module are also provided inside the seepage collection bottle body. The liquid level sensor is installed inside the seepage collection bottle body to monitor the collection amount of the seepage liquid in real time, and send the data to a remote receiving device through the wireless data transmission module to realize remote monitoring and data recording.

[0014] Preferably, it further includes a protection mechanism, including a protection component provided outside the seepage collection bottle assembly.

[0015] The protection component includes a protection cylinder, and a base is provided at the bottom of the protection cylinder.

[0016] Preferably, the soil leaching column body is slidably clamped on the protection cylinder. Both the protection cylinder and the seepage collection bottle body can be clamped on the base. The seepage collection bottle body is located inside the protection cylinder, and the protection cylinder can slide up and down along the air pressure balance tube.

[0017] Preferably, the seepage collection mechanism further includes a positioning component.

[0018] The positioning component includes a positioning block body. A positioning clamping edge is provided at the upper end of one side of the positioning block body. An activity groove is provided at the bottom of the positioning block body. A guide rod is fixedly connected inside the activity groove at the bottom of the positioning block body. An L-shaped lever and a spring are limited and slidably connected to the outside of the guide rod. A positioning inclined block is fixedly connected to one side of the L-shaped lever.

[0019] Preferably, the protection mechanism further includes a lifting component installed inside the protection component;

[0020] The lifting component includes a threaded rod, a slider is arranged on the outer side of the threaded rod in a threaded connection manner, one end of the threaded rod is fixedly connected with a rotating handle on the outer side of the protection cylinder, a limiting block is fixedly connected to the upper end of one side of the slider, and a positioning groove is formed in one side of the slider;

[0021] The protection component further includes a support block arranged inside the protection cylinder.

[0022] Preferably, the threaded rod is fixedly installed on the protection cylinder and the support block through bearings. The rotation of the threaded rod can drive the slider to move. The limiting block can be clamped on the positioning card edge, and the spring can drive the positioning inclined block to extend out of the positioning block body and be clamped in the positioning groove.

[0023] Compared with the prior art, the present invention has the following beneficial effects: By providing collection holes for different soil layers, the field portable combined quantitative soil seepage collection device exhibits extremely high flexibility and adaptability. It can flexibly adjust the drilling distance of the soil solution collection holes according to specific land use types, tillage layer thickness and other conditions to ensure the accuracy and pertinence of monitoring. At the same time, for the characteristics of different soil types and land types, the device can also be adjusted accordingly, so as to realize the long-term and effective monitoring of soil seepage;

[0024] In the field environment, especially under the condition of short infiltration distance, the device can accurately measure the process of soil seepage in different soil layers, providing an important way to obtain key data such as heavy metal content and hydraulic parameters in seepage. In addition, it can collect the seepage water volume at a soil layer depth of 30 cm, which is crucial for quantitatively calculating the source-sink flux of soil heavy metals and providing an accurate basis for environmental risk assessment and treatment;

[0025] At the same time, the design of the soil leaching column device fully considers the principle of soil protection. Its installation and use process will not damage the vertical soil and its pore structure, ensuring the integrity of the natural state and function of the soil. After the monitoring period ends, the device can further be used to obtain soil property data such as soil moisture content, thus comprehensively improving the accuracy and scientific nature of monitoring and providing strong support for the research and practice of agricultural ecology and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 is an exploded schematic diagram of the present invention;

[0028] Figure 3Schematic diagram of the seepage collection mechanism of the present invention;

[0029] Figure 4 of the present invention Figure 3 Enlarged view of A in;

[0030] Figure 5 Schematic diagram of the structure of the soil leaching column assembly of the present invention;

[0031] Figure 6 of the present invention Figure 5 Enlarged view of B in;

[0032] Figure 7 Schematic diagram of the structure of the protection component of the present invention;

[0033] Figure 8 of the present invention Figure 7 Enlarged view of C in;

[0034] Figure 9 Cross-sectional view of the present invention.

[0035] In the figure: 1. Seepage collection mechanism; 11. Soil leaching column assembly; 111. Soil leaching column body; 112. Seepage liquid conduit; 113. Filter screen; 114. Extension conduit; 115. Soil solution sampling head; 116. Sampling joint; 117. Glass glue; 12. Seepage collection bottle assembly; 121. Seepage collection bottle body; 122. Air pressure balance tube; 123. Silicone protection sleeve; 13. Positioning component; 131. Positioning block body; 132. Positioning card edge; 133. Activity groove; 134. Guide rod; 135. L-shaped lever; 136. Spring; 137. Positioning inclined block; 2. Protection mechanism; 21. Protection component; 211. Protection cylinder; 212. Base; 213. Support block; 22. Lifting component; 221. Threaded rod; 222. Slide block; 223. Limit block; 224. Positioning groove. Detailed implementation manners

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0037] As Figures 1 to 4 shown:

[0038] Embodiment 1: The present invention provides a field portable combined quantitative soil seepage collection device, including:

[0039] The seepage collection mechanism 1 includes a soil leaching column assembly 11 and a seepage collection bottle assembly 12 provided at the bottom of the soil leaching column assembly 11;

[0040] The soil leaching column assembly 11 includes a soil leaching column body 111. A seepage liquid conduit 112 is fixedly connected to the lower end of the soil leaching column body 111. A filter screen 113 is provided inside the soil leaching column body 111 near the bottom wall. A plurality of extension conduits 114 are further provided outside the soil leaching column body 111. One end of the extension conduit 114 extends into the soil leaching column body 111 and is horizontally fixedly connected to a soil solution sampling head 115. A sampling joint 116 is further provided at the other end of the extension conduit 114. The position where the extension conduit 114 and the soil leaching column body 111 intersect is sealed with glass glue 117;

[0041] The seepage collection bottle assembly 12 includes a seepage collection bottle body 121. An air pressure balance tube 122 is penetrated through the seepage collection bottle body 121. A silica gel protective sleeve 123 is detachably provided at the upper end of the air pressure balance tube 122;

[0042] The bottom of the seepage liquid conduit 112 always extends into the seepage collection bottle body 121, and the air pressure balance tube 122 extends into the seepage collection bottle body 121 near the bottom wall;

[0043] Among them, during use:

[0044] The first step: Insert the seepage liquid conduit 112 at the bottom of the soil leaching column body 111 into the seepage collection bottle body 121, insert the air pressure balance tube 122 into the seepage collection bottle body 121, and then fill the prepared soil into the soil leaching column body 111, keeping the soil layers consistent with the natural soil structure;

[0045] The second step: Connect the extension conduit 114 and the soil solution sampling head 115 to form an integral soil solution sampler, and finally insert the connected soil solution sampler into the sampling holes corresponding to different soil layers in the soil leaching column body 111 and seal it with glass glue 117;

[0046] The third step: At the field monitoring point (the location where the undisturbed soil is obtained), dig vertically according to the height required by the device (usually 5 - 10 cm greater than the total height of the device for easy installation and adjustment). Then place the portable combined quantitative soil seepage collection device into the dug pit, and then backfill the soil in sequence to ensure that the gap between the soil leaching column body 111 and the pit is filled and it is stable. At the same time, pay attention to exposing the sampling joints 116 of the soil solution samplers for different soil layers above the soil surface;

[0047] In the fourth step, mark the position of the portable combined quantitative soil seepage collection device in the field, and the rest of the agricultural activities shall be the same as the surrounding natural soil treatment methods;

[0048] Finally, according to different monitoring time points (different growth periods or dry and wet seasons of crops), use a vacuum sampler to extract soil solutions from different soil layers through the sampling joint 116, record the volume, and then send them to the laboratory. If the runoff is large during the rainy season, after removing the silica gel protective cover 123, pass the hose through the air pressure balance tube 122 and extend it into the interior of the seepage collection bottle body 121. Connect an external water pump to the hose, and the liquid in the seepage collection bottle body 121 can be collected in batches. Record the volume and conduct chemical analysis each time.

[0049] Specifically, the sampling joint 116 and the silica gel protective cover 123 are located on the ground surface, and the soil layer filled inside the soil leaching column body 111 is the same as the external soil layer.

[0050] Specifically, a liquid level sensor, a turbidity sensor, a power supply module, and a wireless data transmission module are further arranged inside the seepage collection bottle body 121. The liquid level sensor is installed inside the seepage collection bottle body 121 for real-time monitoring of the collection volume of the seepage liquid, and sends the data to a remote receiving device through the wireless data transmission module to achieve remote monitoring and data recording.

[0051] As can be seen from the above, the sampling joint 116 and the silica gel protective cover 123 located on the ground surface facilitate the sampling operation of the staff. The consistency between the soil layer filled inside the soil leaching column body 111 and the external soil layer can maximize the reliability of the sample after sampling. The collection volume of the seepage liquid is monitored in real time through the liquid level sensor, and the data is sent to a remote receiving device through the wireless data transmission module to achieve remote monitoring and data recording, thereby facilitating the staff to extract the solution in the seepage collection bottle body 121 in a timely manner. The content change of suspended solids, colloidal particles, or dissolved substances during the soil seepage process can be understood in a timely manner through the turbidity sensor. At the same time, the power supply module provides stable and reliable power support for the liquid level sensor, the turbidity sensor, and the wireless data transmission module to ensure the normal operation of the entire monitoring system. Considering the complexity and uncertainty of the field environment, a combined power supply method of a solar panel and a storage battery can be adopted to meet the needs of long-term monitoring.

[0052] Such as Figure 1 、 2 and shown in 7:

[0053] Embodiment 2: This embodiment is basically the same as the previous embodiment, except that it further includes a protection mechanism 2, including a protection component 21 arranged outside the seepage collection bottle assembly 12;

[0054] The protection component 21 includes a protection cylinder 211, and a base 212 is arranged at the bottom of the protection cylinder 211;

[0055] Among them, the protective cylinder 211 is made of high-strength and corrosion-resistant materials, such as stainless steel or special alloys, to ensure that it can still maintain good physical properties and appearance integrity in various harsh environments. The protective cylinder 211 is cylindrical, with a smooth interior and no sharp corners, to reduce friction and damage to the soil leaching column body 111 and the seepage collection bottle body 121;

[0056] The base 212 is also made of strong and durable materials, such as weighted cast iron or concrete, to increase the stability of the entire device; the upper surface of the base 212 is provided with card slots that match the protective cylinder 211 and the seepage collection bottle body 121, ensuring that they can be firmly clamped on the base and are not easily loosened.

[0057] The bottom of the base 212 can be designed as a pointed cone or be provided with anti-slip pads to facilitate the fixation of the device in the soil and prevent sliding.

[0058] Specifically, the soil leaching column body 111 is slidably clamped on the protective cylinder 211. Both the protective cylinder 211 and the seepage collection bottle body 121 can be clamped on the base 212. The seepage collection bottle body 121 is located inside the protective cylinder 211, and the protective cylinder 211 can slide up and down along the air pressure balance tube 122.

[0059] As can be seen from the above, through the design of the protective cylinder 211, the soil leaching column body 111 can be slidably clamped on it, which is convenient for installation and disassembly, and can also ensure the stability of the soil leaching column body 111 in the vertical direction. The protective cylinder 211 also provides additional protection for the seepage collection bottle body 121. Placing it inside can effectively prevent damage to the seepage collection bottle body 121 caused by external impacts;

[0060] The stability of the entire device is further enhanced through the base 212. Both the soil leaching column body 111 and the seepage collection bottle body 121 can be clamped on the base 212. Such a design enables the entire device to also maintain stability in the horizontal direction and is not easily toppled;

[0061] The design that the protective cylinder 211 can slide up and down along the air pressure balance tube 122 enables the position of the protective cylinder 211 to be conveniently adjusted when needed, such as during sampling, replacing the seepage collection bottle, or performing other maintenance operations, without affecting the normal operation of the soil leaching column body 111 and the seepage collection bottle body 121.

[0062] Such as Figures 5 to 9 shown:

[0063] Embodiment 3: This embodiment is basically the same as the previous embodiment, except that the seepage collection mechanism 1 further includes a positioning component 13;

[0064] The positioning component 13 includes a positioning block body 131. A positioning card edge 132 is provided at the upper end of one side of the positioning block body 131. An activity groove 133 is provided at the bottom of the positioning block body 131. A guide rod 134 is fixedly connected inside the activity groove 133 at the bottom of the positioning block body 131. An L-shaped lever 135 and a spring 136 are connected in a limited sliding manner on the outer side of the guide rod 134. A positioning inclined block 137 is fixedly connected to one side of the L-shaped lever 135;

[0065] Among them, the positioning card edge 132 is provided at the upper end of one side of the positioning block body 131, and is designed to cooperate with the limit block 223 in the lifting component 22 to achieve precise vertical positioning;

[0066] The activity groove 133 is located at the bottom of the positioning block body 131, providing an activity space for the L-shaped lever 135 and the spring 136, allowing them to make necessary movements;

[0067] The guide rod 134 is fixedly connected inside the activity groove 133 at the bottom of the positioning block body 131, providing a guiding function for the L-shaped lever 135 to ensure its stability and directionality during movement;

[0068] The L-shaped lever 135, the spring 136 and the guide rod 134 are connected in a limited sliding manner. The user can change the position of the positioning inclined block 137 by operating the L-shaped lever, thereby achieving separation from the positioning groove 224;

[0069] The positioning inclined block 137 is fixedly connected to one side of the L-shaped lever 135, and is designed with an inclined surface to facilitate quick and stable clamping with the positioning groove 224. Under the action of the spring 136, the positioning inclined block 137 can automatically extend and snap into the positioning groove 224 to achieve stable positioning.

[0070] Specifically, the protection mechanism 2 further includes a lifting component 22 installed inside the protection component 21;

[0071] The lifting component 22 includes a threaded rod 221. A slider 222 is threadedly connected to the outer side of the threaded rod 221. One end of the threaded rod 221 is fixedly connected with a rotating handle outside the protection cylinder 211. A limit block 223 is fixedly connected to the upper end of one side of the slider 222. A positioning groove 224 is provided on one side of the slider 222;

[0072] The protection component 21 further includes a support block 213 arranged inside the protection cylinder 211;

[0073] Among them, the threaded rod 221 is the core component of the lifting component 22, and is threadedly connected with the slider 222 through the thread on its outer side. When the threaded rod 221 rotates, it can drive the slider 222 to move in the vertical direction;

[0074] The rotating handle is fixedly connected to one end of the threaded rod 221 and is located outside the protective cylinder 211, facilitating manual operation by the user to rotate the threaded rod 221;

[0075] The slider 222 is connected to the threaded rod 221 by a thread and moves vertically under the drive of the threaded rod 221. The limit block 223 fixedly connected to its upper end is used to cooperate with the positioning card edge 132 to achieve vertical positioning;

[0076] The limit block 223 is fixedly connected to the upper side of the slider 222 and is used to be embedded in the positioning card edge 132 to ensure accurate positioning;

[0077] The positioning groove 224 is opened on one side of the slider 222 and cooperates with the positioning inclined block 137 to achieve a firm connection between the slider 222 and the positioning block body 131.

[0078] Specifically, the threaded rod 221 is fixedly installed on the protective cylinder 211 and the support block 213 through bearings. The rotation of the threaded rod 221 can drive the slider 222 to move. The limit block 223 can be embedded on the positioning card edge 132, and the spring 136 can drive the positioning inclined block 137 to extend out of the positioning block body 131 and be embedded in the positioning groove 224.

[0079] As can be seen from the above, during installation

[0080] The first step: First, slide the soil leaching column body 111 into the bottom of the protective cylinder 211 in a sliding manner, and make the limit block 223 and the positioning card edge 132 engage. At the same time, the positioning inclined block 137 will be embedded in the positioning groove 224 under the drive of the spring 136, so as to achieve the function of fixed connection;

[0081] The second step: Connect the extension conduit 114 and the soil solution sampling head 115 to form the whole soil solution sampler. Finally, insert the connected soil solution sampler into the sampling holes corresponding to different soil layers in the soil leaching column body 111 and seal it with glass glue 117;

[0082] The third step: Slide the seepage collection bottle body 121 into the bottom of the protective cylinder 211 in a sliding manner and make the seepage liquid conduit 112 extend into the inside of the seepage collection bottle body 121. Then, engage the protective cylinder 211 and the seepage collection bottle body 121 on the base 212 to complete the installation;

[0083] When adjusting the height, adjusting the rotating handle can make the threaded rod 221 rotate on the protective cylinder 211 and the support block 213. The rotation of the threaded rod 221 will cause the slider 222 to move up and down. The up and down movement of the slider 222 will cause the positioning block body 131 to drive the soil leaching column body 111 to move up and down, so as to adjust the height of the soil leaching column body 111 relative to the soil layer, so that the soil layers filled in the soil leaching column body 111 are consistent with the natural soil structure.

[0084] Application process:

[0085] I. Device preparation and installation

[0086] Preparation stage:

[0087] Confirm that all components (soil leaching column assembly, seepage collection bottle assembly, protection mechanism, positioning assembly, etc.) are intact without damage.

[0088] Check whether electronic devices such as liquid level sensors and turbidity sensors are correctly installed and connected to the power module and wireless data transmission module.

[0089] Prepare the required soil samples, and keep the soil layers consistent with the natural soil structure.

[0090] Install the soil leaching column assembly:

[0091] Slide the soil leaching column body 111 into the bottom of the protection cylinder 211 in a sliding manner, and ensure that the limit block 223 is engaged with the positioning card edge 132. At the same time, the positioning inclined block 137 is engaged in the positioning groove 224 under the drive of the spring 136 to achieve a firm connection.

[0092] Connect the extension conduit 114 and the soil solution sampling head 115 to form the overall soil solution sampler, and then insert the connected soil solution sampler into the sampling holes corresponding to different soil layers in the soil leaching column body 111 and seal it with glass glue 117.

[0093] Install the seepage collection bottle assembly:

[0094] Install the air pressure balance tube 122 on the seepage collection bottle body 121 and install a silica gel protective sleeve 123 at its upper end;

[0095] Slide the seepage collection bottle body 121 into the bottom of the protection cylinder 211 in a sliding manner, and ensure that the seepage liquid conduit 112 extends into the interior of the seepage collection bottle body 121.

[0096] Fixation and height adjustment of the overall device:

[0097] Engage the protection cylinder 211 and the seepage collection bottle body 121 on the base 212 to ensure the stability of the device.

[0098] If it is necessary to adjust the height of the soil leaching column body 111 relative to the soil layer, the turning handle can be rotated to make the threaded rod 221 rotate, thereby driving the slider 222 to move up and down, driving the soil leaching column body 111 to move up and down to a suitable position.

[0099] Place the entire device into a pre-dug pit (the depth of the pit should be 5 - 10 cm greater than the total height of the device), and backfill the soil in sequence to ensure that the gap between the soil leaching column body 111 and the pit is filled and stabilized.

[0100] Pay special attention to exposing the sampling connectors 116 of the soil solution samplers for different soil layers above the soil surface for subsequent sampling operations.

[0101] II. Field Monitoring and Sampling

[0102] Field Marking:

[0103] Mark the location of the portable combined quantitative soil seepage collection device in the field to ensure that it can be accurately found and sampled subsequently.

[0104] Daily Monitoring:

[0105] Monitor parameters such as the collection volume of the seepage fluid (data provided by the liquid level sensor) and turbidity (data provided by the turbidity sensor) in real time through the remote receiving device.

[0106] Evaluate the soil seepage condition in a timely manner according to the monitoring results and prepare a sampling plan.

[0107] Sampling Operation:

[0108] At different monitoring time points (such as different growth periods or dry and wet seasons of the crop), use a vacuum sampler to extract the soil solution of different soil layers through the sampling connectors.

[0109] Record the sampling volume and send the samples to the laboratory for analysis.

[0110] III. Maintenance and Adjustment

[0111] Regular Inspection:

[0112] Regularly check whether all components of the device are in good condition, especially whether the filter screen 113 of the soil leaching column body 111 is blocked and whether the seepage fluid conduit 112 is unobstructed.

[0113] Check whether the seal of the glass glue 117 is in good condition to prevent water leakage or air leakage.

[0114] Cleaning and Maintenance:

[0115] Regularly clean the outer surface of the device, especially the soil and dirt on the protective cylinder 211 and the base 212.

[0116] Conduct necessary cleaning and maintenance on the electronic devices (such as liquid level sensors, turbidity sensors, etc.) to ensure their normal operation.

[0117] Through the above steps, the field portable combined quantitative soil seepage collection device can stably and accurately collect soil seepage liquid, and monitor relevant parameters in real time, providing strong support for soil science research, environmental monitoring and agricultural production.

[0118] All standard parts used in the present invention can be purchased from the market. Special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connection adopts the conventional connection method in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0119] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. The meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0120] In the present invention, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0121] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature can be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature is at a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature is at a lower horizontal height than the second feature.

[0122] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0123] In the accompanying drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved, and other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0124] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A field portable combined quantitative soil seepage collection device, characterized in that, Comprising: A seepage collection mechanism (1), including a soil leaching column assembly (11) and a seepage collection bottle assembly (12) arranged at the bottom of the soil leaching column assembly (11); The soil leaching column assembly (11) includes a soil leaching column body (111). The lower end of the soil leaching column body (111) is fixedly communicated with a seepage liquid conduit (112). A filter screen (113) is arranged at a position close to the bottom wall inside the soil leaching column body (111). A plurality of extension conduits (114) are also arranged on the outer side of the soil leaching column body (111). One end of the extension conduit (114) extends into the interior of the soil leaching column body (111) and is horizontally fixedly connected with a soil solution sampling head (115). The other end of the extension conduit (114) is also provided with a sampling joint (116). The position where the extension conduit (114) and the soil leaching column body (111) intersect is sealed with glass glue (117); The seepage collection bottle assembly (12) includes a seepage collection bottle body (121). An air pressure balance tube (122) is penetrated through the seepage collection bottle body (121). A silica gel protective sleeve (123) is detachably arranged at the upper end of the air pressure balance tube (122); The bottom of the seepage liquid conduit (112) always extends into the interior of the seepage collection bottle body (121). The air pressure balance tube (122) extends into the interior of the seepage collection bottle body (121) at a position close to the bottom wall; The sampling joint (116) and the silica gel protective sleeve (123) are located on the ground surface. The soil layer filled inside the soil leaching column body (111) is consistent with the external soil layer; A vacuum sampler is used to extract soil solutions from different soil layers through the sampling joint (116) to collect heavy metal samples at different soil depths.

2. The field portable combined quantitative soil seepage collection device according to claim 1, wherein A liquid level sensor, a turbidity sensor, a power module, and a wireless data transmission module are also arranged inside the seepage collection bottle body (121). The liquid level sensor is installed inside the seepage collection bottle body (121) to monitor the collection amount of seepage liquid in real time and send the data to a remote receiving device through the wireless data transmission module to achieve remote monitoring and data recording.

3. The field portable combined quantitative soil seepage collection device according to claim 2, wherein It also includes a protection mechanism (2), including a protection component (21) arranged outside the seepage collection bottle assembly (12); The protection component (21) includes a protection cylinder (211). A base (212) is arranged at the bottom of the protection cylinder (211).

4. The field portable combined quantitative soil seepage collection device according to claim 3, wherein The soil leaching column body (111) is slidably clamped on the protection cylinder (211). Both the protection cylinder (211) and the seepage collection bottle body (121) can be clamped on the base (212). The seepage collection bottle body (121) is located inside the protection cylinder (211). The protection cylinder (211) can slide up and down along the air pressure balance tube (122).

5. The field portable combined quantitative soil seepage collection device according to claim 4, characterized in that, The seepage collection mechanism (1) also includes a positioning component (13); The positioning component (13) includes a positioning block body (131). A positioning card edge (132) is provided at the upper end of one side of the positioning block body (131). An activity groove (133) is provided at the bottom of the positioning block body (131). A guide rod (134) is fixedly connected inside the activity groove (133) at the bottom of the positioning block body (131). An L-shaped lever (135) and a spring (136) are connected in a limited sliding manner on the outer side of the guide rod (134). A positioning inclined block (137) is fixedly connected to one side of the L-shaped lever (135).

6. The field portable combined quantitative soil seepage collection device according to claim 5, wherein The protection mechanism (2) further includes a lifting component (22) installed inside the protection component (21); The lifting component (22) includes a threaded rod (221). A slider (222) is threadedly connected to the outer side of the threaded rod (221). A rotating handle is fixedly connected to one end of the threaded rod (221) located outside the protection cylinder (211). A limiting block (223) is fixedly connected to the upper end of one side of the slider (222). A positioning groove (224) is provided on one side of the slider (222); The protection component (21) further includes a support block (213) provided inside the protection cylinder (211).

7. The field portable combined quantitative soil seepage collection device according to claim 6, characterized in that, The threaded rod (221) is fixedly installed on the protection cylinder (211) and the support block (213) through bearings. The rotation of the threaded rod (221) can drive the slider (222) to move. The limiting block (223) can be clamped on the positioning card edge (132). The spring (136) can drive the positioning inclined block (137) to extend out of the positioning block body (131) and be clamped in the positioning groove (224).

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