A device for collecting water from rice fields

Abstract

The present invention discloses a device for collecting surface water of a rice field, comprising a water absorption sleeve and a water collection sleeve; the water absorption sleeve is a T-shaped structure with adjustable transverse length, and is partially located underwater when in use; the water collection sleeve is a push-pull box-shaped structure, with handles installed on the sides and universal wheels installed on the bottom; when the device is in use, the water absorption sleeve and the water collection sleeve are connected to each other through a water absorption hose to allow water to pass through; the device does not require manual scooping of water, thereby reducing the possibility of operators operating near water and reducing the danger of collection work; the device components are inexpensive and easy to disassemble, do not take up space, and can be pushed and pulled to adjust their positions at any time; the water absorption sleeve is thrown to the target collection point to complete the collection of the collection point, the distance between the water absorption ports can be adjusted, and multiple samples are taken at the same time and then automatically mixed, so that the obtained water samples can better represent the water quality near the collection point.

Description

Technical Field

[0001] The invention relates to the technical field of water sample collection, and in particular to a device for collecting surface water in a rice field. Background Art

[0002] Rice is China's largest grain crop, accounting for approximately 24% of the country's total grain crop area and 35% of its total grain output. Rice also consumes approximately 60-70% of total agricultural water use and around 20% of national fertilizer use. As a major consumer of water and fertilizer resources, nitrogen loss from rice paddies is a key focus in the prevention and control of agricultural non-point source pollution. Nitrogen fertilizer applied to rice fields is partially absorbed and utilized by crops, while some enters rivers and lakes through surface runoff in various chemical forms or seeps into groundwater through unsaturated zones, causing eutrophication and groundwater pollution. Nitrogen in surface water is a direct source of agricultural non-point source pollution. Therefore, collecting surface water and analyzing it in the laboratory to understand the dynamic patterns and kinetic characteristics of nitrogen in this water is crucial for preventing and controlling nitrogen non-point source pollution from rice fields.

[0003] The existing method of collecting surface water in rice fields is mainly manual collection. The collectors need to evenly scoop multiple surface water samples from each field and each ridge. Subsequently, the multiple surface water samples need to be evenly mixed in water before they are used as a surface water sample for subsequent testing. The sampling depth cannot be controlled, and there is a certain risk that the operator will fall into the rice field. Another existing method for automatic sampling of field waters mainly emphasizes its sampling automation and intelligent detection. Although it has high accuracy and efficiency, the initial system deployment cycle is long, the cost is expensive, and the space occupied is large, making it unsuitable for sampling surface water in rice fields. Therefore, it is very necessary to design a surface water collection device that is easy to use, relatively low in price, and efficient in sampling.

[0004] Therefore, those skilled in the art are committed to developing a device for collecting water from rice fields to address the deficiencies of the above-mentioned prior art. Summary of the Invention

[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is that the manual sampling method of field surface water disclosed in the prior art is inefficient, time-consuming and dangerous, while the efficient sampling system equipment is expensive, occupies a large space and has a long deployment cycle.

[0006] To achieve the above objectives, the present invention provides, in a first aspect, a device for collecting surface water from a rice field, comprising a water suction sleeve and a water collection sleeve; the water suction sleeve is a T-shaped structure with adjustable transverse length, and is partially underwater when in use; the water collection sleeve is a push-pull box-shaped structure with handles installed on the sides and universal wheels installed on the bottom; when the device is in use, the water suction sleeve and the water collection sleeve are connected by a water suction hose to allow water to pass through;

[0007] Furthermore, the water absorption set includes a water absorption pipe, a water absorption head, a floating plate, an elastic line, a fixing ring, a positioning hook, and a fixing plate;

[0008] The suction pipe is a three-way pipe as a whole; it consists of a T-shaped main pipe and two auxiliary pipes with right-angle bends at the ends; a spring is installed inside both sides of the upper end of the main pipe; the spring is located in a hollow section between the inner and outer walls of the main pipe; a portion of the auxiliary pipe is located in the hollow section of the main pipe and is fixedly connected to the spring; the extension length of the auxiliary pipe is controlled by the tension of an elastic wire; when the elastic wire does not apply force to the auxiliary pipe, the auxiliary pipe returns to its original position under the influence of the spring; when the elastic wire applies force to the auxiliary pipe, the auxiliary pipe moves inward, compressing the spring;

[0009] The end of the water suction head is a trumpet-shaped structure; the water suction head is equipped with a layer of filter to prevent large foreign objects in the field surface water from clogging the pipe;

[0010] The floating plate is bonded to the bottom of the water suction pipe and is responsible for providing buoyancy for the water suction sleeve to ensure that the water suction sleeve floats steadily on the water surface;

[0011] The elastic line passes through the fixing ring and is distributed on both sides of the water suction pipe; the two ends of the elastic line are wrapped and fixed on the fixing ring at the end of the auxiliary pipe; the center of the elastic line is hooked on the upper end of the positioning hook; the length and tightness of the elastic line change with the position of the positioning hook;

[0012] The fixing rings are evenly distributed and fixedly connected at two right-angled corners of the water suction pipe;

[0013] One end of the positioning hook is a hook-shaped structure that can hook the upper elastic line; the other end of the positioning hook is a crescent-shaped structure that is convenient for the operator to hook with two fingers;

[0014] The fixing plate is sleeved on the end of the water suction pipe, and the inner wall is bonded to the water suction pipe; the fixing plate has a plurality of neatly arranged limit blocks, which facilitate the positioning hook to hook the fixed position;

[0015] Furthermore, the water collection kit includes a water collection box and a power kit; a power kit is installed above the water collection box; the power kit includes a water pump and a matching motor for power supply; the water pump is connected to the water suction kit through a water suction hose; the water sample pumped out by the water pump flows directly into the sample bottle in the sample receiving chamber below through the lower pipe; the observation window is a transparent window, where the sample bottle receiving condition and whether the pipeline is unobstructed can be observed; the sample bottles collected in the sample receiving chamber can be temporarily stored in the sample storage chamber on the left to reduce the possibility of sample bottle loss or damage; after collecting at a certain point, the operator can push and pull the handle to move the device to other sampling points;

[0016] Furthermore, the spring is made of corrosion-resistant material;

[0017] Furthermore, the elastic cord is made of a material that is sufficiently elastic, corrosion-resistant, and blister-resistant;

[0018] Furthermore, the water absorption head can be replaced with different lengths within the range of 10 to 20 cm according to actual conditions;

[0019] Furthermore, the material used for the water suction pipe is one of PTFE, PVC, PPH, PEX, and stainless steel;

[0020] The second aspect of the present invention provides a method for using the device for collecting rice field surface water according to the first aspect of the present invention.

[0021] The following steps are involved:

[0022] Step 1: Push and pull the device to the vicinity of the field surface water collection point;

[0023] Step 2: Assemble the water absorption sleeve and the water collection sleeve, and use the elastic band, positioning hook and fixing plate to determine the extension length of the auxiliary pipe according to the sampling requirements;

[0024] Step 3: Throw out the water absorption kit according to the distance between the sampling point and the ridge, and use a hose to fine-tune the position;

[0025] Step 4: Turn on the motor switch, the motor drives the water pump to work, the field surface water is sucked in from the water suction pipe and automatically mixed, enters the internal pipe through the water suction hose, and is finally collected in the sample bottle in the sample receiving room;

[0026] Step 5: Observe the sample receiving situation at the observation window. When the sample is full, replace the sample receiving bottle, record the sealed sample receiving bottle, and place it in the sample storage room. After the collection is completed, change the sampling point and repeat the above steps until the sampling work is completed.

[0027] By adopting the above scheme, the device for collecting surface water of a rice field disclosed in the present invention has the following advantages:

[0028] (1) A device for collecting surface water of a rice field according to the present invention has a water suction sleeve and a water collection sleeve connected by a pipeline. The water suction sleeve is thrown to the target collection point to complete the collection of the collection point. In addition, multiple water suction ports collect water at the same time and automatically mix the water. The obtained water sample can better represent the water quality near the collection point.

[0029] (2) The device for collecting surface water of a rice field according to the present invention does not require manual scooping of water, thereby reducing the possibility of operators operating near water and lowering the risk of collection work; the device components are inexpensive and easy to disassemble, do not take up space, and can be pushed and pulled to adjust the position at any time, thus having good applicability.

[0030] In summary, the present invention discloses a device for collecting surface water in rice fields, which does not require manual scooping of water, reduces the possibility of operators operating near water, and reduces the risk of collection work; the device components are inexpensive and easy to disassemble, do not take up space, and can be pushed and pulled to adjust the position at any time; the water absorption sleeve is thrown to the target collection point to complete the collection of the collection point, the distance between the water absorption ports can be adjusted, and multiple samples can be taken at the same time and then automatically mixed, so that the obtained water sample can better represent the water quality near the collection point.

[0031] The concept, specific technical solutions and technical effects of the present invention will be further described below in conjunction with specific implementation methods to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of a device for collecting surface water in a rice field according to the present invention;

[0033] Figure 2 This is a schematic structural diagram of a water absorption kit for collecting surface water in a rice field according to the present invention;

[0034] Figure 3 This is a schematic structural diagram of a water suction head 2 of a device for collecting surface water in a rice field according to the present invention;

[0035] Figure 4 This is a schematic diagram of the positional relationship between a fixing plate 7 and a water suction pipe 1 of a device for collecting surface water in a rice field according to the present invention;

[0036] Figure 5 This is an enlarged view of the positional relationship between the spring 101, the main pipe 102, and the auxiliary pipe 103 of a device for collecting surface water in a rice field according to the present invention;

[0037] In the figure: 1. Suction pipe; 101. Spring; 102. Main pipe; 103. Auxiliary pipe; 2. Suction head; 3. Float; 4. Elastic line; 5. Fixing ring; 6. Positioning hook; 7. Fixing plate; 8. Water pump; 801. Suction hose; 9. Motor; 1001. Observation window; 1002. Sample receiving chamber; 1003. Sample storage chamber; 11. Handle. DETAILED DESCRIPTION

[0038] The following describes several preferred embodiments of the present invention to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, which are for illustrative purposes only and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0039] If there are experimental methods without specific conditions, they are usually implemented according to conventional conditions, such as those in the relevant instructions or manuals.

[0040] The paddy field surface water collection device of the present invention has a structure as follows Figures 1 to 5 As shown, it includes a water absorption sleeve and a water collection sleeve; the water absorption sleeve is a T-shaped structure with adjustable horizontal length, and is partially located underwater when in use; the water collection sleeve is a push-pull box-shaped structure; when the device is in use, the water absorption sleeve and the water collection sleeve are connected by a water absorption hose 801 to allow water to pass through;

[0041] The water absorption set includes a water absorption pipe 1, a water absorption head 2, a floating plate 3, an elastic line 4, a fixing ring 5, a positioning hook 6, and a fixing plate 7;

[0042] The suction pipe 1 is a three-way pipe as a whole; it consists of a T-shaped main pipe 102 and two auxiliary pipes 103 with right-angle bends at the ends; a spring 101 is installed inside both sides of the upper end of the main pipe 102; the spring 101 is located in a hollow section between the inner and outer walls of the main pipe 102; a portion of the auxiliary pipe 103 is located in the hollow section of the main pipe 102 and is fixedly connected to the spring 101; the extension length of the auxiliary pipe 103 is controlled by the tension of the elastic line 4; when the elastic line 4 does not apply force to the auxiliary pipe 103, the auxiliary pipe 103 returns to its original position under the influence of the spring 101; when the elastic line 4 applies force to the auxiliary pipe 103, the auxiliary pipe 103 moves inward, compressing the spring 101;

[0043] The end of the water suction head 2 is a trumpet-shaped structure; the water suction head 2 is equipped with a layer of filter to prevent large foreign objects in the field surface water from clogging the pipe;

[0044] The floating plate 3 is bonded to the bottom of the water suction pipe 1 and is responsible for providing buoyancy for the water suction sleeve to ensure that the water suction sleeve floats steadily on the water surface;

[0045] The elastic wire 4 passes through the fixing ring 5 and is distributed on both sides of the water suction pipe 1; the two ends of the elastic wire 4 are wrapped and fixed on the fixing ring 5 at the end of the auxiliary pipe 103; the center of the elastic wire 4 is hooked on the upper end of the positioning hook 6; the length and tightness of the elastic wire 4 change with the position of the positioning hook 6;

[0046] The fixing rings 5 ​​are evenly distributed and fixedly connected at two right-angled corners of the water suction pipe 1;

[0047] One end of the positioning hook 6 is a hook-shaped structure that can hook the upper elastic line 4; the other end of the positioning hook 6 is a crescent-shaped structure that is convenient for the operator to hook with two fingers;

[0048] The fixing plate 7 is sleeved on the end of the water suction pipe 1, and the inner wall is bonded to the water suction pipe 1; the fixing plate 7 has a plurality of neatly arranged limit blocks, which facilitate the positioning hook 6 to hook the fixed position;

[0049] The water collection set includes a water collection box and a power set; a power set is installed above the water collection box; the power set includes a water pump 8 and a matching motor 9 for power supply; the water pump 8 is connected to the water suction set through a water suction hose 801; the water sample pumped by the water pump 8 flows directly into the sample bottle in the lower sample receiving chamber 1002 through the lower pipe; the observation window 1001 is a transparent window, where the sample bottle receiving condition and whether the pipeline is unobstructed can be observed; the sample bottles collected in the sample receiving chamber 1002 can be temporarily stored in the sample storage chamber 1003 on the left to reduce the possibility of sample bottle loss or damage; after collecting at a certain point, the operator can push and pull the handle 11 to move the device to other sampling points;

[0050] The spring 101 is made of corrosion-resistant material;

[0051] The elastic line 4 is made of a material that is elastic, corrosion-resistant, and blister-resistant;

[0052] The water suction head 2 can be replaced with different lengths within the range of 10 to 20 cm according to actual conditions;

[0053] The material used for the water suction pipe 1 is one of PTFE, PVC, PPH, PEX, and stainless steel;

[0054] Use of the rice field surface water collection device of the present invention:

[0055] Example 1: Operation of a device for collecting water from a rice field

[0056] Step 1: Select a sampling field and push or pull the device to the designated field surface water collection point;

[0057] Step 2: Connect the water suction set and the water collection set through the water suction hose 801 to ensure that there is no water leakage at the connection; the required depth of field surface water collection is 10 cm, and one group of samples is taken along a ridge. A total of 5 groups are taken from one field, and each group of samples needs to be collected 4 times at the sampling point; set the extension length of the auxiliary pipe 103 of the water suction pipe 1 to 30 cm, and hook the positioning hook 6 to the uppermost set of limit blocks of the fixing plate 7;

[0058] Step 3: The sampling point is 1 meter away from the ridge, the water absorption set is thrown out, and the water absorption hose 801 is used to drive the water absorption set to perform fine adjustment of the position;

[0059] Step 4: Turn on the motor 9 switch, which drives the water pump 8 to work. The field surface water is sucked from the water suction pipe 1 and automatically mixed in the main pipe 102. The water enters the internal pipe through the water suction hose 801 and is finally collected in the sample bottle of the sample receiving chamber 1002. Since the distance between the two water suction heads 2 is long, two samplings can meet the collection requirement of "each group of samples needs to be collected four times at the sampling point";

[0060] Step 5: Observe the sample receiving situation at the observation window 1001. When the sample is full, replace the sample receiving bottle, record the number and sampling position of the sealed sample receiving bottle, and then place it in the sample storage chamber 1003. After the collection is completed, change the sampling point and repeat the above steps 4 times. After collecting field water five times, the sampling work is completed. Disassemble the components and quickly store the device.

[0061] Comparative Example 2: Specific Operations of Manually Collecting Field Water

[0062] Step 1: Select a sampling field and prepare water collection tools such as sample bottles and telescopic rods;

[0063] Step 2: Take one group of samples along a ridge, and take five groups in total from one field. Each group of samples needs to be collected four times at the sampling point. The surface water collected four times is mixed to form one field surface water sample.

[0064] Step 3: Change the ridge to continue sampling, and record and store the sample bottles;

[0065] By comparing and analyzing Example 1 with Comparative Example 2, it can be seen that the device for collecting surface water of a rice field of the present invention saves more manpower, does not require manual scooping of water, reduces the possibility of operators operating near the water, and reduces the risk of collection work; the components of the device are inexpensive and easy to disassemble, do not take up space, and can be pushed and pulled to adjust the position at any time; the water absorption sleeve is thrown to the target collection point to complete the collection of the collection point, the distance between the water absorption ports can be adjusted, and multiple samples are automatically mixed after being taken at the same time, so that the obtained water sample can better represent the water quality near the collection point.

[0066] The above describes in detail the preferred embodiments of the present invention. It should be understood that numerous modifications and variations based on the concepts of the present invention can be made by those skilled in the art without inventive effort. Therefore, any technical solution that can be derived by those skilled in the art based on the concepts of the present invention through logical analysis, reasoning, or limited experimentation based on the existing technology should be within the scope of protection defined by the claims.

Claims

1. A device for collecting water from a rice field, characterized in that: It comprises a water absorption sleeve and a water collection sleeve; the water absorption sleeve is a T-shaped structure with adjustable transverse length, and is partially located underwater when in use; the water collection sleeve is a push-pull box-shaped structure; when the device is in use, the water absorption sleeve and the water collection sleeve are connected via a water absorption hose (801) to allow water to pass through; The water absorption set comprises a water absorption pipe (1), a water absorption head (2), a floating plate (3), an elastic line (4), a fixing ring (5), a positioning hook (6), and a fixing plate (7); The water suction pipe (1) is a three-way pipe as a whole; the water suction pipe (1) consists of a T-shaped main pipe (102) and two auxiliary pipes (103) with right-angle bends at the ends; a spring (101) is installed inside both sides of the upper end of the main pipe (102); the spring (101) is located in a hollow section between the inner wall and the outer wall of the main pipe (102); a part of the auxiliary pipe (103) is located in the hollow section of the main pipe (102), and this part is fixedly connected to the spring (101); the extension length of the auxiliary pipe (103) is controlled by the pulling of the elastic line (4); when the elastic line (4) does not apply force to the auxiliary pipe (103), the auxiliary pipe (103) returns to its original position under the influence of the spring (101); when the elastic line (4) applies force to the auxiliary pipe (103), the auxiliary pipe (103) moves inward and the spring (101) is compressed.

2. A device for collecting surface water of a rice field as claimed in claim 1, characterized in that: The end of the water suction head (2) is a trumpet-shaped structure; the water suction head (2) is equipped with a filter screen to prevent large foreign objects in the field water from clogging the pipe; The floating plate (3) is bonded to the bottom of the water suction pipe (1) and is responsible for providing buoyancy for the water suction sleeve, ensuring that the water suction sleeve floats steadily on the water surface.

3. A device for collecting surface water of a rice field as claimed in claim 1, characterized in that: The elastic line (4) passes through the fixing ring (5) and is distributed on both sides of the water suction pipe (1); the two ends of the elastic line (4) are wound and fixed on the fixing ring (5) at the end of the auxiliary pipe (103); the center position of the elastic line (4) is hooked on the upper end of the positioning hook (6); the length and tightness of the elastic line (4) change with the position of the positioning hook (6).

4. A device for collecting surface water of a rice field as claimed in claim 1, characterized in that: The fixing rings (5) are evenly distributed and fixedly connected at two right-angled corners of the water suction pipe (1); One end of the positioning hook (6) is a hook-shaped structure, which can hook the upper elastic line (4); the other end of the positioning hook (6) is a crescent-shaped structure, which is convenient for the operator to hook it with two fingers; The fixing plate (7) is sleeved on the end of the water suction pipe (1), and the inner wall is bonded to the water suction pipe (1); a plurality of neatly arranged limiting blocks are provided on the fixing plate (7), which facilitates the positioning hook (6) to hook the fixed position.

5. The device for collecting surface water of a rice field as claimed in claim 1, characterized in that: The water collection set includes a water collection box and a power set; the power set is installed above the water collection box; the power set includes a water pump (8) and a matching power supply motor (9); the water pump (8) is connected to the water suction set through a water suction hose (801); the water sample pumped out by the water pump (8) flows directly into the sample bottle in the lower sample receiving chamber (1002) through the lower pipeline; the observation window (1001) is a transparent window, where the sample bottle receiving situation and whether the pipeline is unobstructed can be observed; the sample bottles collected in the sample receiving chamber (1002) are temporarily stored in the left sample storage chamber (1003) to reduce the occurrence of sample bottle loss or damage; after collecting at a certain point, the operator pushes and pulls the handle (11) to move the device to other sampling points.

6. The device for collecting surface water of a rice field as claimed in claim 1, characterized in that: The elastic line (4) is made of a material that is sufficiently elastic, corrosion-resistant, and blister-resistant; The water suction head (2) is changed to different lengths within the range of 10 to 20 cm according to actual conditions; The material used for the water suction pipe (1) is one of PTFE, PVC, PPH, PEX, and stainless steel.

7. A method for using the device for collecting surface water in a rice field as claimed in claim 1, characterized in that: The steps include: Step 1: Push and pull the device to the vicinity of the field surface water collection point; Step 2, assembling the water absorption sleeve and the water collection sleeve, and determining the extension length of the auxiliary pipe (103) according to the sampling requirements; Step 3, according to the distance between the sampling point and the ridge, the water absorption set is thrown out and the position is fine-tuned using the water absorption hose (801); Step 4, turn on the motor (9) and the water pump (8), the field surface water is sucked in and mixed from the water suction pipe (1), enters the internal pipeline through the water suction hose (801), and is finally collected in the sample bottle of the sample receiving room (1002); Step 5, observe the sampling situation, replace the sampling bottle when it is full, and record the sealed sampling bottle and place it in the sample storage room (1003); after the collection is completed, replace the sampling point and repeat the above steps until the sampling work is completed.

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