Fdr soil moisture sensor calibration soil sample sampling device

Abstract

The application discloses a kind of FDR soil moisture sensor calibration soil sample sampling device, belong to soil sampling device technical field, including support, steel cylinder with cutting edge and the calibration container being arranged in the side of steel cylinder away from support, the outer wall of steel cylinder is equipped with scale, fixed clamping belt is equipped between steel cylinder and calibration container, the side of steel cylinder away from calibration container is equipped with chuck, screw hole that is adapted with screw rod is opened in the chuck, handle is fixed on the screw rod;The end of the screw rod away from handle extends to steel cylinder, bottom plate piston is equipped in steel cylinder, inner cylinder is fixed in the bottom plate piston, the side of steel cylinder away from chuck is equipped with baffle, through-hole is structured in the baffle;Acrylic top plate and acrylic bottom plate are fixed in the calibration container.The FDR soil moisture sensor calibration soil sample sampling device, it is convenient to sample, and accuracy is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of soil sampling devices, and particularly relates to a FDR soil moisture sensor calibration soil sample sampling device. BACKGROUND

[0002] Soil sampling has a wide application in many fields such as meteorology, agriculture and environmental monitoring, and plays an extremely important role in soil moisture sensor calibration in particular. The sampling size and soil disturbance degree directly determine the calibration accuracy. At present, there are two methods for automatic soil moisture sensor calibration: laboratory calibration method and field calibration method. Both the laboratory calibration method and the field calibration method have certain limitations. The soil sample is easily disturbed, thereby affecting the accuracy of the detection result.

[0003] Therefore, in view of the above situation, it is urgent to design and produce a FDR soil moisture sensor calibration soil sample sampling device to meet the needs of actual use. SUMMARY

[0004] The application aims to provide a FDR soil moisture sensor calibration soil sample sampling device to solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a FDR soil moisture sensor calibration soil sample sampling device, comprising a support, a steel cylinder with a cutting edge and a calibration container arranged on the side of the steel cylinder away from the support, a scale is arranged on the outer wall of the steel cylinder, a fixed clamping belt is arranged between the steel cylinder and the calibration container, a chuck in a cylindrical shape is arranged on the side of the steel cylinder away from the calibration container, a screw hole adapted to a screw rod is formed in the chuck, and a handle is fixed on the screw rod.

[0006] The end of the screw rod away from the handle extends into the steel cylinder, a bottom plate piston is arranged in the steel cylinder, an inner cylinder is fixed in the bottom plate piston, a blocking plate is arranged on the side of the steel cylinder away from the chuck, and a through hole is formed in the blocking plate.

[0007] An acrylic top plate and an acrylic bottom plate are fixed in the calibration container, a rubber ring is arranged in the acrylic bottom plate, and a central through hole through which a sensor measurement sleeve passes is formed in the acrylic top plate and the calibration container.

[0008] In a further embodiment, two connecting blocks are fixed on the outer wall of the steel cylinder, and screw holes adapted to connecting bolts are formed in the two connecting blocks.

[0009] In a further embodiment, the support is composed of a support platform and support legs, a platform circular hole is formed in the support platform, and three support legs arranged in a ring array are fixed on the side of the support platform away from the calibration container.

[0010] In further embodiments, the three legs are all tapered away from the end of the support platform, and the support platform has two screw holes adapted to receive the connecting bolts.

[0011] In further embodiments, the chuck is connected to the steel cylinder by four limiting bolts.

[0012] In further embodiments, the fixed clamping band has an anti-skid pad fixed therein, and two through holes are formed in the fixed clamping band and adapted to receive locking bolts with nuts.

[0013] In further embodiments, the diameter of the central through hole of the acrylic top plate and the calibration container is greater than the outer diameter of the sensor measuring sleeve, and the diameter of the through hole of the rubber ring is the same as the outer diameter of the sensor measuring sleeve.

[0014] In further embodiments, the diameter of the through hole of the blocking plate is greater than the outer diameter of the sensor measuring sleeve, and the blocking plate is provided with a flange having an inner diameter the same as the outer diameter of the cutting edge of the steel cylinder.

[0015] In further embodiments, the outer diameter of the chuck is greater than the outer diameter of the sensor measuring sleeve.

[0016] A sampling method of a FDR soil moisture sensor calibration soil sample sampling device, comprising the following steps:

[0017] Step 1: Dig the soil to the depth required for sampling, use a spade to smooth the surface of the soil, and clean the floating soil on the surface; use a drill bit matched with the sensor measuring sleeve to drill a hole in the vertical direction on the smoothed soil surface; press the sensor measuring sleeve into the soil along the hole, and the installed sensor measuring sleeve has a certain length above the soil surface;

[0018] Step 2: Fit the bottom plate piston to the installed sensor measuring sleeve;

[0019] Step 3: Remove the screw rod and take off the chuck;

[0020] Step 4: Fit the steel cylinder to the bottom plate piston, and press the steel cylinder into the soil by hydraulic or knocking method until the depth of the steel cylinder is reached;

[0021] Step 5: Dig the soil around the steel cylinder and clean the floating soil, and use a spade to cut off the soil along the lower end of the steel cylinder;

[0022] Step 6: Remove the entire steel cylinder together with the soil in the steel cylinder;

[0023] Step 7: Insert the support into the soil to fix it, and place the blocking plate on the support table;

[0024] Step 8: Place the steel cylinder together with the collected soil therein on the blocking plate, slowly rotate and press the sensor measuring sleeve, until the sensor measuring sleeve is flush with the bottom plate piston surface;

[0025] Step 9: Install the chuck on the steel cylinder, and screw the screw rod into the chuck;

[0026] Step 10: Invert the blocking plate together with the steel cylinder and the undisturbed soil therein on the support, and fix the steel cylinder on the support by connecting bolts;

[0027] Step 11: Remove the blocking plate;

[0028] Step 12: Rotate the handle, and rotate the screw rod upwards, the screw rod moves upwards and pushes the bottom plate piston in the steel cylinder to move upwards, thereby pushing the soil sample in the steel cylinder upwards into the calibration container, and rotating the sensor measuring sleeve in the center of the calibration container downwards, until the bottom end penetrates through the central through hole of the calibration container, and the sensor measuring sleeve is flush with the bottom end of the calibration container.

[0029] The FDR soil moisture sensor calibration soil sample sampling device has the following technical effects and advantages: the inner cylinder can be provided with a sensor measuring sleeve, the collected soil has a small disturbance, and the soil structure can remain consistent with the state before sampling; the sample is pushed out and placed in a calibration container, the quality of the whole sample is greatly reduced, a high-precision balance can be used to measure the quality of the sample; the chuck, the screw rod and the handle are arranged, the screw rod is rotated by holding the handle, the bottom plate piston is moved by the screw rod, the sensor measuring sleeve in the soil sample can be higher than the height of the soil column, and the measurement of the sensor is facilitated; the support platform and the steel cylinder are detachably connected, and the screw rod and the chuck are detachably connected, so that the FDR soil moisture sensor calibration soil sample sampling device is convenient to carry and assemble, sampling is facilitated, and the accuracy is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a structural schematic view of the present application;

[0031] Figure 2 It is a structural schematic view of the present application; Figure 1 It is an enlarged view of the structure at A in the present application;

[0032] Figure 3 It is a structural schematic view of the support of the present application;

[0033] Figure 4 It is a sectional view of the steel cylinder of the present application;

[0034] Figure 5 It is a structural schematic view of the bottom plate piston of the present application;

[0035] Figure 6 It is a sectional view of the calibration container of the present application.

[0036] In the figure: 1, support platform; 2, steel cylinder, 3, fixed clamping belt; 30, non-slip pad; 31, locking bolt; 4, calibration container; 40, acrylic top plate; 41, rubber ring; 42, acrylic bottom plate; 5, screw rod; 6, handle; 7, platform round hole; 8, support leg; 9, blocking plate; 10, inner cylinder; 11, bottom plate piston; 12, connecting block; 13, chuck. DETAILED DESCRIPTION

[0037] In the following description, a large number of specific details are given to provide a more thorough understanding of the present application. However, it is apparent to those skilled in the art that the present application can be implemented without one or more of these details. In other cases, some technical features known to the art are not described in order not to obscure the present application.

[0038] In order to reduce the influence on the measurement results and improve the accuracy, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 , an FDR soil moisture sensor calibration soil sample sampling device is provided, which comprises a support, a steel cylinder 2 with a blade, and a calibration container 4 arranged on the side of the steel cylinder 2 away from the support. The outer wall of the steel cylinder 2 is provided with a scale. A fixed clamping belt 3 is arranged between the steel cylinder 2 and the calibration container 4. A cylindrical chuck 13 is arranged on the side of the steel cylinder 2 away from the calibration container 4. A screw hole adapted to the screw rod 5 is formed in the chuck 13. A handle 6 is fixed on the screw rod 5. The end of the screw rod 5 away from the handle 6 extends into the steel cylinder 2. A bottom plate piston 11 is arranged in the steel cylinder 2. An inner cylinder 10 is fixed in the bottom plate piston 11. A blocking plate 9 is arranged on the side of the steel cylinder 2 away from the chuck 13. A through hole is formed in the blocking plate 9. An acrylic top plate 40 and an acrylic bottom plate 42 are fixed in the calibration container 4. A rubber ring 41 is arranged in the acrylic bottom plate 42. A central through hole is formed in the acrylic top plate 40 and the calibration container 4 for the sensor measurement sleeve to pass through. Two connecting blocks 12 are fixed on the outer wall of the steel cylinder 2. Screw holes adapted to the connecting bolts are formed in the two connecting blocks 12. The sensor measurement sleeve can be installed in the inner cylinder 10. The degree of soil disturbance collected is small enough, and the soil structure can remain consistent with the state before collection.

[0039] In order to improve stability and facilitate sampling, as shown in Figure 1 and Figure 3As shown, the support is composed of a support platform 1 and three supporting legs 8, the support platform 1 is internally structured with a platform round hole 7, the support platform 1 is fixed with three supporting legs 8 arranged in a ring array on the side away from the calibration container 4, the ends of the three supporting legs 8 away from the support platform 1 are all structured as a taper, two screw holes adapted to connecting bolts are opened on the support platform 1, the chuck 13 is connected with the steel cylinder 2 through four limiting bolts;

[0040] In order to facilitate the connection of the steel cylinder 2 and the calibration container, as shown in Figure 1 and Figure 2 A non-slip pad 30 is bonded in the fixed clamping belt 3, two through holes adapted to the locking bolts 31 with nuts are opened on the fixed clamping belt 3;

[0041] In order to improve the sealing performance, as shown in Figure 6 The diameter of the central through hole on the acrylic top plate 40 and the calibration container 4 is greater than the outer diameter of the sensor measuring sleeve, the diameter of the through hole on the rubber ring 41 is the same as the outer diameter of the sensor measuring sleeve, after the sensor measuring sleeve passes through the rubber ring 41, the two can be in close contact, preventing moisture from seeping out.

[0042] A sampling method of a FDR soil moisture sensor calibration soil sample sampling device, comprising the following steps:

[0043] Step 1: Dig the soil to the depth needed for sampling, use a spade to repair and level the soil surface, and clean the floating soil on top; use a drill bit matched with the sensor measuring sleeve to drill a hole in the vertical direction on the repaired and leveled soil surface; press the sensor measuring sleeve into the soil along the hole, and the installed sensor measuring sleeve has a certain length above the soil surface;

[0044] Step 2: Fit the bottom plate piston 11 to the installed sensor measuring sleeve;

[0045] Step 3: Take out the screw rod 5 and remove the chuck 13;

[0046] Step 4: Fit the steel cylinder 2 to the bottom plate piston 11, and press the steel cylinder 2 into the soil by hydraulic or knocking method until it is deep into the scale on the outer wall of the steel cylinder 2;

[0047] Step 5: Dig the soil around the steel cylinder 2 and clean the floating soil, and use a spade to cut off the soil along the lower end of the steel cylinder 2;

[0048] Step 6: Move out the entire steel cylinder 2 together with the soil in the steel cylinder 2;

[0049] Step 7: Insert the support into the soil to fix it, and place the blocking plate 9 on the support platform 1;

[0050] Step 8: Place the steel cylinder 2 together with the soil collected inside on the blocking plate 9, slowly rotate and press the sensor measuring sleeve, until the sensor measuring sleeve is flush with the bottom plate piston 11;

[0051] Step 9: Install the chuck 13 on the steel cylinder 2, and screw the screw rod 5 into the chuck 13;

[0052] Step 10: Place the blocking plate 9 together with the steel cylinder 2 and the undisturbed soil inside upside down on the support, and fix the steel cylinder 2 on the support with connecting bolts;

[0053] Step 11: Remove the blocking plate 9;

[0054] Step 12: Rotate the handle 6, and rotate the screw rod 5 upwards, the screw rod 5 moves upwards and pushes the bottom plate piston 11 inside the steel cylinder 2 to move upwards, thus pushing the soil sample inside the steel cylinder 2 upwards into the calibration container 4, and rotating the sensor measuring sleeve in the center of the calibration container 4 downwards, until the bottom end penetrates through the central through hole of the calibration container 4, and the sensor measuring sleeve is flush with the bottom end of the calibration container 4.

[0055] Finally, it should be noted that the above only describes the preferred embodiments of the present application, and is not intended to limit the present application.

Claims

1. A method of sampling a soil sample for calibrating a FDR soil moisture sensor sampling device, the sampling device comprising a support, a steel cylinder (2) with a cutting edge and a calibration container (4) arranged on the side of the steel cylinder (2) remote from the support, characterized in that: The outer wall of the steel cylinder (2) is provided with a scale, the steel cylinder (2) and the calibration container (4) are provided with a fixed clamping belt (3), the side of the steel cylinder (2) away from the calibration container (4) is provided with a cylindrical chuck (13), the chuck (13) is provided with a screw hole matched with the screw rod (5) in the inside, the screw rod (5) is fixed with a handle (6); The end of the screw rod (5) away from the handle (6) extends into the steel cylinder (2), the steel cylinder (2) is provided with a bottom plate piston (11) in the inside, the bottom plate piston (11) is fixed with an inner cylinder (10) in the inside, the side of the steel cylinder (2) away from the chuck (13) is provided with a baffle (9), the baffle (9) is provided with a through hole in the inside; The calibration container (4) is fixed with an acrylic top plate (40) and an acrylic bottom plate (42), the acrylic bottom plate (42) is provided with a rubber ring (41) in the inside, the acrylic top plate (40) and the calibration container (4) are both provided with a central through hole for the sensor measuring sleeve to pass through; The sampling method comprises the following steps: Step 1: Dig the soil to the depth required for sampling, use a shovel to smooth the surface of the soil, and clean the floating soil on the surface; use a drill bit matched with the sensor measuring sleeve to drill a hole in the vertical direction on the smoothed soil surface; press the sensor measuring sleeve into the soil along the hole, and the installed sensor measuring sleeve has a certain length above the soil surface; Step 2: Fit the bottom plate piston (11) on the installed sensor measuring sleeve; Step 3: Take out the screw rod (5) and remove the chuck (13); Step 4: Fit the steel cylinder (2) on the bottom plate piston (11), and press the steel cylinder (2) into the soil by hydraulic pressure or knocking until the scale on the outer wall of the steel cylinder (2) is reached; Step 5: Dig the soil around the steel cylinder (2) and clean the floating soil, and use a shovel to cut off the soil along the lower end of the steel cylinder (2); Step 6: Remove the entire steel cylinder (2) together with the soil in the steel cylinder (2); Step 7: Insert the support into the soil to fix it, and place the baffle (9) on the support table (1); Step 8: Place the steel cylinder (2) together with the soil collected in it on the baffle (9), slowly rotate and press down the sensor measuring sleeve until the sensor measuring sleeve is flush with the bottom plate piston (11); Step 9: Install the chuck (13) on the steel cylinder (2) and rotate the screw rod (5) into the chuck (13); Step 10: Invert the baffle (9) together with the steel cylinder (2) and the undisturbed soil in it on the support, and fix the steel cylinder (2) on the support with connecting bolts; Step 11: Remove the baffle (9); Step 12: Rotate the handle (6) and rotate the screw rod (5) upwards, the screw rod (5) moves upwards and pushes the bottom plate piston (11) in the steel cylinder (2) to move upwards, thereby pushing the soil sample in the steel cylinder (2) upwards into the calibration container (4), and rotating the sensor measuring sleeve in the center of the calibration container (4) downwards until the bottom end passes through the central through hole of the calibration container (4), and the sensor measuring sleeve is flush with the bottom end of the calibration container (4).

2. The method of sampling a soil sample for calibrating a FDR soil moisture sensor according to claim 1, wherein: Two connecting blocks (12) are fixed to the outer wall of the steel cylinder (2), and screw holes adapted to connecting bolts are formed in the two connecting blocks (12).

3. The method of sampling a soil sample for calibrating a FDR soil moisture sensor according to claim 1, wherein: The support is composed of a support table (1) and support legs (8), a platform circular hole (7) is formed in the support table (1), and three support legs (8) arranged in an annular array are fixed to the side of the support table (1) away from the calibration container (4).

4. The method of sampling a soil sample for calibrating a FDR soil moisture sensor according to claim 3, wherein: The end of each of the three support legs (8) away from the support table (1) is tapered, and two screw holes adapted to connecting bolts are formed in the support table (1).

5. The method of sampling a soil sample for calibrating a FDR soil moisture sensor of claim 1, wherein: The chuck (13) is connected to the steel cylinder (2) through four limiting bolts.

6. The method of sampling a soil sample for calibrating a FDR soil moisture sensor of claim 1, wherein: A non-slip pad (30) is fixed in the fixed clamping belt (3), and two through holes adapted to locking bolts (31) with nuts are formed in the fixed clamping belt (3).

7. The method of sampling a soil sample for calibrating a FDR soil moisture sensor according to claim 1, wherein: The diameter of the central through hole of the acrylic top plate (40) and the calibration container (4) is greater than the outer diameter of the sensor measuring sleeve, and the diameter of the through hole of the rubber ring (41) is the same as the outer diameter of the sensor measuring sleeve.

8. The method of sampling a soil sample for calibrating a FDR soil moisture sensor of claim 1, wherein: The diameter of the through hole of the blocking plate (9) is greater than the outer diameter of the sensor measuring sleeve, and a flange is formed on the blocking plate (9), and the inner diameter of the flange is the same as the outer diameter of the blade edge of the steel cylinder (2).

9. The method of sampling a soil sample for calibrating a FDR soil moisture sensor according to claim 1, wherein: The outer diameter of the chuck (13) is greater than the outer diameter of the sensor measuring sleeve.

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