Soil acidification control experiment soil column

Abstract

The utility model provides a soil acidification control experiment soil column, and relates to the technical field of soil acidification detection sampling. The soil acidification control experiment soil column comprises an experiment soil column body, a sampling pipeline is fixedly connected to the interior of the experiment soil column body, the two ends of the sampling pipeline are open, and a movable baffle is hinged to the interior of the sampling pipeline through a pin shaft. According to the device, an experimental soil column is inserted into a potted plant, one end of a sampling pipeline is shielded through a movable baffle and a fixed barrier strip, external soil is prevented from entering the sampling pipeline, and when the potted plant needs to be subjected to acidification detection, a connecting sliding block is driven to slide away from a connecting pull rod; under the connecting action of the connecting pull rod, the movable baffle is pulled to turn over to open one end of the sampling pipeline, so that soil in a potted plant is conveniently sampled through the sampling pipeline, the pH condition of the soil is measured, the vertical change trend of acidification is known, and the soil structure and potted crops are not damaged.

Description

Technical Field

[0001] The utility model relates to an experimental soil column, in particular to a soil acidification control experimental soil column, belonging to the technical field of soil acidification detection and sampling. Background Technique

[0002] Soil acidification refers to the process in which the soil absorption complex accepts a certain amount of exchangeable hydrogen ions or aluminum ions, resulting in the leaching of alkaline (base) ions in the soil. Lime can be applied to adjust the acidity and supplement calcium. Pot experiments are a method of conducting agricultural scientific experiments by cultivating crops in pots. After the plants are cultivated, it is necessary to take out the soil at different depths in the pot and conduct chemical analysis on the soil to detect the metal content and pH inside the soil for analysis.

[0003] Chinese Patent Publication No. CN214149950U discloses a potting soil sampler. The key points of its technical solution are that it includes a sampling tube with openings at both ends. A soil pushing column is arranged inside the sampling tube, and the soil pushing column extends to the outside of one end of the sampling tube. The end of the sampling tube away from the soil pushing column can be inserted into the soil. One end of the soil pushing column is provided with a soil pushing piston located inside the sampling tube, and the soil pushing piston is slidably connected to the inner wall of the sampling tube. It achieves the purpose of more accurately sampling the potting soil within a certain depth range in the experiment and simplifying the sampling operation of the potting soil.

[0004] However, the inventor of the above device believes that there are certain defects. Since it is necessary to take samples of the soil at different depths during the chemical analysis and detection of the soil, the continuous sampling operation of the above device is likely to affect the soil structure and potted crops. Therefore, the utility model provides a soil acidification control experimental soil column. Content of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] The purpose of the utility model is to provide a soil acidification control experimental soil column to solve the problem that the continuous sampling operation in the prior art is likely to affect the soil structure and potted crops.

[0007] (2) Technical Solutions

[0008] The present utility model is realized through the following technical solutions: A soil acidification control experimental soil column, including an experimental soil column, wherein a sampling pipeline is fixedly connected inside the experimental soil column. Both ends of the sampling pipeline are open. An activity baffle is hinged inside the sampling pipeline through a pin shaft. A fixed stop bar is fixedly connected to the inner bottom wall of the sampling pipeline. The activity baffle and the fixed stop bar block one opening of the sampling pipeline. A top sliding groove is opened at the top of the sampling pipeline. A connecting slider is slidably connected inside the top sliding groove. The bottom of the connecting slider is hinged to a connecting pull rod through a pin shaft. The other end of the connecting pull rod is hinged to one side surface of the activity baffle through a pin shaft.

[0009] Preferably, the number of the sampling pipelines is two. The distance value from one sampling pipeline to the top of the experimental soil column is 20 cm, and the distance value from the other sampling pipeline to the top of the experimental soil column is 40 cm. By setting multiple sampling pipelines, sampling can be carried out at different depths of the potted plant.

[0010] Preferably, a fixed sliding rod is fixedly connected to the inner top wall of the sampling pipeline. The connecting slider is slidably connected to the fixed sliding rod. By setting the fixed sliding rod, the stability of the connecting slider during the sliding process is increased.

[0011] Preferably, a spring is sleeved on the fixed sliding rod. The spring is arranged on the side surface of the connecting slider away from the activity baffle. By setting the spring, the connecting slider can quickly slide back to its original position when not under force.

[0012] Preferably, an activity stop rod is hinged to the top of the sampling pipeline through a pin shaft. Two fixed stop pieces are fixedly connected to the top of the sampling pipeline. By rotating the activity stop rod, the connecting slider can be blocked to prevent the connecting slider from sliding back to its original position and keeping the activity baffle in an open state for a long time.

[0013] Preferably, the bottom of the experimental soil column is closed, and the experimental soil column is cylindrical.

[0014] Preferably, a groove is opened on one side surface of the activity baffle. One end of the connecting pull rod is hinged inside the groove through a pin shaft. By setting the groove, the flipped connecting pull rod can be stored.

[0015] The present utility model provides a soil acidification control experimental soil column, and the beneficial effects thereof are as follows:

[0016] 1. The device inserts an experimental soil column into a potted plant. One end of the sampling pipe is blocked by the provided movable baffle and fixed bar to prevent external soil from entering the inside of the sampling pipe. When it is necessary to detect the acidification of the potted plant, the connecting slider is driven to slide away from the connecting rod. Under the connection action of the connecting rod, the movable baffle is pulled to flip open one end of the sampling pipe, so as to facilitate sampling the soil in the potted plant through the sampling pipe, measuring the soil pH, understanding the vertical change trend of acidification, and not damaging the soil structure and potted plant crops.

[0017] 2. The device can sample and detect different soil layers of the potted plant through multiple provided sampling pipes. When the connecting slider is pulled to one end of the top chute, by rotating the movable stop rod, one end of the movable stop rod is rotated into the space between two fixed retaining pieces. The movable stop rod is used to limit the sliding reset of the connecting slider, so that the movable baffle remains in the open state. By rotating to release the block of the movable stop rod, under the spring's resilience, the connecting slider is quickly driven to slide back to its original position, and the movable baffle closes one end of the sampling pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the overall three-dimensional view of the present utility model;

[0019] Figure 2 is the sectional three-dimensional view of the sampling pipe of the present utility model;

[0020] Figure 3 is the sectional three-dimensional view of the top chute of the present utility model;

[0021] Figure 4 is the Figure 1 enlarged schematic view of part A in the present utility model.

[0022]

SYMBOLS DESCRIPTION OF MAIN COMPONENTS

[0023] 1. Experimental soil column; 2. Sampling pipe; 21. Top chute; 3. Movable baffle; 31. Groove; 4. Fixed bar; 5. Connecting rod; 6. Connecting slider; 7. Fixed slide bar; 71. Spring; 8. Fixed retaining piece; 9. Movable stop rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The embodiment of the present utility model provides an experimental soil column for soil acidification control.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, A soil acidification control experimental soil column, including experimental soil column 1. Inside experimental soil column 1, a sampling pipeline 2 is fixedly connected. Both ends of sampling pipeline 2 are open, and the bottom of experimental soil column 1 is closed. Experimental soil column 1 is cylindrical and is made of a PVC pipe to form a cylindrical tube with an open top and a closed bottom. The number of sampling pipelines 2 is two. The distance from one sampling pipeline 2 to the top of experimental soil column 1 is 20 cm, and the distance from the other sampling pipeline 2 to the top of experimental soil column 1 is 40 cm. It extends into the interior of experimental soil column 1 through the opening at the top of experimental soil column 1, and then samples the soil in different soil layers of the potted plant through sampling pipeline 2.

[0026] Please refer to again Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , Inside sampling pipeline 2, a movable baffle 3 is hinged by a pin shaft. A fixed stop bar 4 is fixedly connected to the inner bottom wall of sampling pipeline 2. Movable baffle 3 and fixed stop bar 4 block the opening at one end of sampling pipeline 2. By setting movable baffle 3 and fixed stop bar 4, one end of sampling pipeline 2 is blocked to prevent the soil inside the potted plant from flowing into the interior of experimental soil column 1 through sampling pipeline 2. A top chute 21 is opened at the top of sampling pipeline 2. Inside top chute 21, a connecting slider 6 is slidably connected. The bottom of connecting slider 6 is hinged to a connecting pull rod 5 by a pin shaft. The other end of connecting pull rod 5 is hinged to one side surface of movable baffle 3. A groove 31 is opened on one side surface of movable baffle 3. One end of connecting pull rod 5 is hinged inside groove 31. By pulling connecting slider 6 to slide inside top chute 21, under the connection action of connecting pull rod 5, movable baffle 3 is pulled to flip around the pin shaft of movable baffle 3, so that movable baffle 3 opens one end of sampling pipeline 2 to facilitate sampling the soil at the current sampling pipeline 2. The flipped connecting pull rod 5 is received through the set groove 31.

[0027] Please refer to again Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , A fixed slide bar 7 is fixedly connected to the inner top wall of sampling pipeline 2. Connecting slider 6 is slidably connected to fixed slide bar 7. A spring 71 is sleeved on fixed slide bar 7. Spring 71 is arranged on the side surface of connecting slider 6 away from movable baffle 3. By setting fixed slide bar 7, the stability of connecting slider 6 during sliding is increased, and under the action of spring 71, connecting slider 6 quickly slides back to its original position when not under force.

[0028] Please refer to again Figure 1 、 Figure 2 、 Figure 3 and Figure 4, a movable stop bar 9 is hinged to the top of the sampling pipe 2 through a pin shaft. Two fixed stop pieces 8 are fixedly connected to the top of the sampling pipe 2. When the connecting slider 6 is pulled to one end of the top chute 21, the movable stop bar 9 is rotated so that one end of the movable stop bar 9 turns between the two fixed stop pieces 8. The connecting slider 6 is blocked by the movable stop bar 9 to keep the movable baffle 3 open. After sampling, one end of the movable stop bar 9 is turned out from between the two fixed stop pieces 8 to make the connecting slider 6 slide back to its original position.

[0029] Working principle: The whole experimental soil column 1 is inserted into the soil of the potted plant so that the top of the experimental soil column 1 is horizontal with the top soil of the potted plant. The top of the experimental soil column 1 is closed by the top cover. When sampling is required, the top of the experimental soil column 1 is opened, and the inside of the experimental soil column 1 is reached. By pulling the connecting slider 6 at the top of the sampling pipe 2 to slide, the movable baffle 3 is pulled to turn and open under the action of the connecting rod 5. Then, one end of the movable stop bar 9 is turned between the two fixed stop pieces 8, and the connecting slider 6 is blocked by the movable stop bar 9 to prevent the connecting slider 6 from sliding back to its original position due to the elastic force of the spring 71. Then, the sampling is carried out by inserting the sampling tube through the sampling pipe 2 into the soil to measure the pH value of the soil. By setting the sampling pipes 2 at different depths, the soil layers at different depths can be detected. After sampling, one end of the movable stop bar 9 is turned out from between the two fixed stop pieces 8, and the connecting slider 6 quickly slides back to its original position under the action of the elastic force of the spring 71, so that the movable baffle 3 blocks one end of the sampling pipe 2.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A soil acidification control experimental soil column, comprising an experimental soil column (1), characterized in that: A sampling pipe (2) is fixedly connected inside the experimental soil column (1), and both ends of the sampling pipe (2) are open. A movable baffle (3) is hinged inside the sampling pipe (2) through a pin shaft, and a fixed baffle (4) is fixedly connected to the inner bottom wall of the sampling pipe (2). The movable baffle (3) and the fixed baffle (4) cover the opening at one end of the sampling pipe (2). A top slide groove (21) is provided at the top of the sampling pipe (2), and a connecting slider (6) is slidably connected inside the top slide groove (21). The bottom of the connecting slider (6) is hinged with a connecting pull rod (5) through a pin shaft, and the other end of the connecting pull rod (5) is hinged to a side surface of the movable baffle (3) through a pin shaft.

2. A soil acidification control experimental soil column according to claim 1, characterized in that: The number of the sampling pipes (2) is two, the distance between one of the sampling pipes (2) and the top of the experimental soil column (1) is 20 centimeters, and the distance between the other of the sampling pipes (2) and the top of the experimental soil column (1) is 40 centimeters.

3. A soil acidification control experimental soil column according to claim 1, characterized in that: The inner top wall of the sampling pipe (2) is fixedly connected with a fixed sliding rod (7), and the connecting sliding block (6) is slidably connected to the fixed sliding rod (7).

4. A soil acidification control experimental soil column according to claim 3, characterized in that: A spring (71) is sleeved on the fixed slide bar (7), and the spring (71) is arranged on a side of the connecting slide block (6) away from the movable baffle (3).

5. The soil acidification control experimental soil column according to claim 1, characterized in that: A movable blocking rod (9) is hingedly connected to the top of the sampling pipe (2) via a pin shaft, and two fixed blocking plates (8) are fixedly connected to the top of the sampling pipe (2).

6. A soil acidification control experimental soil column according to claim 1, characterized in that: The bottom of the experimental soil column (1) is in a closed shape, and the experimental soil column (1) is in a cylindrical shape.

7. The soil acidification control experimental soil column according to claim 1, characterized in that: A groove (31) is formed on one side of the movable baffle (3), and one end of the connecting rod (5) is hinged inside the groove (31) via a pin.

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