Wheat drought monitoring soil moisture detection device

By designing a wheat drought monitoring soil moisture detection device and using probes and electromagnets to draw soil moisture content on stickers, the problem of unintuitive detection results in the existing technology is solved, and more efficient and convenient soil moisture detection is achieved.

CN119861188AActive Publication Date: 2025-04-22山东省农业技术推广中心(山东省农业农村发展研究中心) +2
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Patent Information

Application Number
CN202510354065.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2025-04-22
Estimated Expiration
2045-03-25

AI Technical Summary

Technical Problem

When the existing soil moisture detection device detects soils of different depths at the same location, the detection results are not intuitive enough and not contrasting, which reduces the effect of soil moisture detection.

Method used

A wheat drought monitoring soil moisture detection device is designed, including test components, marking components and reset components. The test component is inserted into the soil through a probe, the marking component uses electromagnets and magnetic plates to make the brush draw the moisture content on the sticker in real time, and the reset component ensures the separation of the brush and sticker to ensure the accuracy of the test results.

Benefits of technology

It realizes intuitive and contrasting soil moisture detection results, and can clearly determine where soil moisture is the highest or least, improving the convenience and effectiveness of detection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of soil moisture detection, and discloses a wheat drought monitoring and soil moisture detection device which comprises a base and further comprises a U-shaped frame fixedly mounted at the top of the base; the testing assembly is arranged on the U-shaped frame, and the testing assembly is used for being inserted into soil to detect moisture; the marking assembly is arranged on the outer side of the corresponding vertical edge of the U-shaped frame, the marking assembly is further connected with the testing assembly, and the marking assembly is used for marking the testing result of the testing assembly; and the reset assembly is arranged on the outer side of the corresponding vertical edge of the U-shaped frame, and the reset assembly is used for resetting the marking assembly. According to the soil moisture detection device, when the probe moves downwards, the water content of soil can be drawn on the sticker in real time through the paintbrush, so that a soil moisture detection result is clear, visual and comparative, the position where the soil moisture is the highest and the position where the soil moisture is the lowest can be clearly known, and the convenience of detecting the soil moisture by the device is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of soil moisture detection, and in particular to a soil moisture detection device for wheat drought monitoring. Background Art

[0002] Wheat drought monitoring soil moisture detection is an important technical means in agricultural production. It is used to monitor the moisture content in the soil in real time, helping agricultural managers to evaluate soil moisture conditions and make reasonable irrigation decisions. This is important for improving water resource utilization efficiency, ensuring normal crop growth, and increasing crop yields.

[0003] For example, a soil moisture detection device disclosed in the patent with announcement number CN221803998U can detect the moisture in the soil. However, when detecting soil of different depths at the same location, the detection results are not intuitive and comparable, which reduces the effect of soil moisture detection. Therefore, it is urgent to design a soil moisture detection device for wheat drought monitoring. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art and to propose a wheat drought monitoring soil moisture detection device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A wheat drought monitoring soil moisture detection device, comprising a base, and also comprising: U-shaped frame, the U-shaped frame is fixedly installed on the top of the base; A test component is arranged on a U-shaped frame and is used to be inserted into the soil to detect moisture; A marking component, which is arranged outside the vertical side corresponding to the U-shaped frame, is also connected to the test component, and is used to mark the test result of the test component; A reset component is arranged outside the vertical side corresponding to the U-shaped frame, and the reset component is used to reset the marking component.

[0006] As a further technical solution of the present invention, the test assembly includes: a horizontal plate, which is horizontally arranged between the two vertical sides of the U-shaped frame, an installation box is fixedly installed at the center of the bottom of the horizontal plate, and two symmetrically arranged vertical rods are vertically fixed to the bottom of the installation box, probes are fixedly installed at the ends of the two vertical rods, an electric telescopic rod is vertically fixedly installed at the top of the horizontal side of the U-shaped frame, and the output end of the electric telescopic rod passes through the horizontal side of the U-shaped frame, the output end of the electric telescopic rod is fixedly installed at the top of the horizontal plate, and a first telescopic rod connected to the top of the horizontal plate is vertically fixed to the bottom of the horizontal side of the U-shaped frame.

[0007] As a further technical solution of the present invention, the marking component includes: a connecting plate, which is arranged on the outer shell of the vertical side of the U-shaped frame, and the connecting plate and the vertical side of the U-shaped frame are not in direct contact, two vertical grooves are vertically opened on the outer side of the vertical side of the U-shaped frame, and first sliders are slidably installed inside the two vertical grooves, and the ends of the two first sliders are fixedly installed on the side of the connecting plate, a U-shaped plate is fixedly installed on the side of the horizontal plate, and the other end of the U-shaped plate is fixedly installed on the end face of the connecting plate.

[0008] As a further technical solution of the present invention, an electromagnet with its own power supply is fixedly installed on the side of the connecting plate away from the U-shaped frame, cables are fixedly installed on the top of the two probes, and the two cables are electrically connected to the electromagnet through the installation box, and a sticker is pasted on the side of the U-shaped frame.

[0009] As a further technical solution of the present invention, a magnetic plate is also slidably provided on the side of the connecting plate away from the U-shaped frame, a first transverse groove is opened on the side of the connecting plate, and a first movable block is slidably installed inside the first transverse groove, the end face of the first movable block is fixedly installed on the side of the magnetic plate, a first spring rod is horizontally fixedly installed on the inner end of the first transverse groove, and the telescopic end of the first spring rod is fixedly installed on the side of the first movable block.

[0010] As a further technical solution of the present invention, a second transverse groove is provided on the side of the connecting plate away from the electromagnet, and a second movable block is slidably installed inside the second transverse groove, a connecting column is horizontally fixedly installed on the end face of the second movable block, and a three-jaw chuck is fixedly installed on the end of the connecting column away from the second movable block, a paintbrush is installed on the three-jaw chuck, and the initial position of the paintbrush is in contact with the sticker.

[0011] As a further technical solution of the present invention, the reset assembly includes: a limit plate, which is vertically fixed on the outer side of the corresponding vertical side of the U-shaped frame, and a first straight groove and a second straight groove are arranged in parallel on the side of the limit plate, and a first oblique groove and a second oblique groove are also arranged on the side of the limit plate, the first oblique groove and the second oblique groove are located at both ends of the first straight groove and the second straight groove, and the first oblique groove, the second oblique groove, the first straight groove and the second straight groove are connected end to end.

[0012] As a further technical solution of the present invention, the first straight groove, the second inclined groove and the inner wall of the second straight groove are provided with an inner groove, and a slope is provided at the end of the inner groove located at the second straight groove.

[0013] As a further technical solution of the present invention, sliding columns are slidably arranged inside the first inclined groove, the second inclined groove, the first straight groove and the second straight groove, and the ends of the sliding columns pass through the limiting plate. An inner cavity is opened at the ends of the sliding columns, and a second spring rod is embedded in the inner cavity. The telescopic end of the second spring rod is adapted to the inner groove.

[0014] As a further technical solution of the present invention, a second ring is fixedly sleeved on the surface of the sliding column, and a first ring is slidably sleeved on the surface of the connecting column through a spline, and a connecting rod is fixedly connected between the first ring and the second ring.

[0015] The beneficial effects of the present invention are: Firstly, the present invention, through the setting of the test component and the marking component, can use the brush to draw the moisture content of the soil on the sticker in real time when the probe moves downward, so as to achieve a clear, intuitive and comparative result of soil moisture detection, and can clearly know where the soil moisture is the highest and where the moisture is the least, thereby improving the convenience of the device in detecting soil moisture; Secondly, the present invention, through the arrangement of the reset component and the marking component, can make the slide column pass through the second inclined groove and enter the second straight groove when the probe moves upward after the soil moisture content detection is completed, thereby realizing the separation of the brush and the sticker, ensuring the accuracy of the line drawn on the sticker, and thus improving the use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a soil moisture detection device for wheat drought monitoring proposed by the present invention; Figure 2 for Figure 1 A magnified schematic diagram of part A; Figure 3 This is a schematic diagram of a U-shaped frame cross-sectional structure of a wheat drought monitoring soil moisture detection device proposed by the present invention; Figure 4 This is a schematic diagram of the upward structure of a wheat drought monitoring soil moisture detection device proposed by the present invention; Figure 5 for Figure 4 A magnified schematic diagram of part B; Figure 6 A schematic diagram of a connection plate and a connection structure of a wheat drought monitoring soil moisture detection device proposed by the present invention; Figure 7 This is a schematic diagram of the magnetic plate and sliding column structure of a wheat drought monitoring soil moisture detection device proposed by the present invention.

[0017] In the figure: 1, base; 2, U-shaped frame; 3, horizontal plate; 4, electric telescopic rod; 5, installation box; 6, vertical rod; 7, probe; 8, vertical slot; 9, first slider; 10, connecting plate; 11, U-shaped plate; 12, limit plate; 13, sticker; 14, first horizontal slot; 15, first movable block; 16, magnetic plate; 17, connecting column; 18, three-jaw chuck; 19, paintbrush; 20, first ring; 21, connecting rod; 22, second ring; 23, sliding column; 24, first oblique slot; 25, first straight slot; 26, second straight slot; 27, first telescopic rod; 28, inner slot; 29, second oblique slot; 30, electromagnet; 31, first spring rod; 32, second horizontal slot; 33, second movable block; 34, second spring rod. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Please see attached Figure 1 -Attached Figure 7 A wheat drought monitoring soil moisture detection device comprises a base 1, and also comprises: a U-shaped frame 2, a test component, a marking component and a reset component, wherein the U-shaped frame 2 is fixedly mounted on the top of the base 1, the test component is arranged on the U-shaped frame 2, and the test component is used to be inserted into the soil to detect the moisture, the marking component is arranged on the outer side of the vertical side corresponding to the U-shaped frame 2, the marking component is also connected to the test component, and the marking component is used to mark the test result of the test component, the reset component is arranged on the outer side of the vertical side corresponding to the U-shaped frame 2, and the reset component is used to reset the marking component; As described above, when the probe 7 moves downward, the moisture content of the soil can be painted on the sticker 13 in real time through the paintbrush 19, so that the result of soil moisture detection is clear, intuitive and comparative, and it can be clearly known where the soil moisture is the highest and where the moisture is the least.

[0021] Please see attached Figure 1 -Attached Figure 4In a preferred embodiment, the test assembly includes: a horizontal plate 3, the horizontal plate 3 is horizontally arranged between the two vertical sides of the U-shaped frame 2, a mounting box 5 is fixedly installed at the bottom center of the horizontal plate 3, and two symmetrically arranged vertical rods 6 are vertically fixed at the bottom of the mounting box 5, and probes 7 are fixedly installed at the ends of the two vertical rods 6, an electric telescopic rod 4 is vertically fixedly installed at the top of the horizontal side of the U-shaped frame 2, and the output end of the electric telescopic rod 4 passes through the horizontal side of the U-shaped frame 2, and the output end of the electric telescopic rod 4 is fixedly installed at the top of the horizontal plate 3, and a first telescopic rod 27 connected to the top of the horizontal plate 3 is vertically fixed at the bottom of the horizontal side of the U-shaped frame 2; Specifically, the horizontal plate 3 moves downward to drive the installation box 5 and the U-shaped plate 11 to move downward, and the installation box 5 moves downward to drive the vertical rod 6 and the probe 7 to move downward. The probe 7 moves downward to pass through the base 1 and insert into the soil.

[0022] Please see attached Figure 1 -Attached Figure 7 In a preferred embodiment, the marking component includes: a connecting plate 10, the connecting plate 10 is arranged on the vertical side shell of the U-shaped frame 2, and the connecting plate 10 and the vertical side of the U-shaped frame 2 are not in direct contact, two vertical grooves 8 are vertically opened on the outer side of the vertical side of the U-shaped frame 2, and the first sliders 9 are slidably installed inside the two vertical grooves 8, and the ends of the two first sliders 9 are fixedly installed on the side of the connecting plate 10, a U-shaped plate 11 is fixedly installed on the side of the cross plate 3, and the other end of the U-shaped plate 11 is fixedly installed on the end face of the connecting plate 10, an electromagnet 30 with a power supply is fixedly installed on the side of the connecting plate 10 away from the U-shaped frame 2, cables are fixedly installed on the tops of the two probes 7, and the two cables are electrically connected to the electromagnet 30 through the installation box 5, a sticker 13 is pasted on the side of the U-shaped frame 2, and the connecting plate 10 is away from the U-shaped frame 2. A magnetic plate 16 is also slidably arranged on the side, a first transverse groove 14 is provided on the side of the connecting plate 10, and a first movable block 15 is slidably installed inside the first transverse groove 14, and the end face of the first movable block 15 is fixedly installed on the side face of the magnetic plate 16, a first spring rod 31 is horizontally fixedly installed on the inner end portion of the first transverse groove 14, and the telescopic end of the first spring rod 31 is fixedly installed on the side face of the first movable block 15, a second transverse groove 32 is provided on the side of the connecting plate 10 away from the electromagnet 30, and a second movable block 33 is slidably installed inside the second transverse groove 32, a connecting column 17 is horizontally fixedly installed on the end face of the second movable block 33, and a three-jaw chuck 18 is fixedly installed on the end of the connecting column 17 away from the second movable block 33, a paintbrush 19 is installed on the three-jaw chuck 18, and the initial position of the paintbrush 19 is in contact with the sticker 13; Preferably, since the more moisture in the soil, the lower the resistance, the stronger the fluidity of the current, the more moisture in the soil, the greater the current passing through the electromagnet 30, and the greater the magnetic force of the electromagnet 30. It can be further known that the soil moisture content is proportional to the magnetic force of the electromagnet 30.

[0023] Please see attached Figure 2 -Attached Figure 7 In a preferred embodiment, the reset assembly includes: a limit plate 12, the limit plate 12 is vertically fixedly installed on the outer side of the corresponding vertical side of the U-shaped frame 2, and a first straight groove 25 and a second straight groove 26 are arranged in parallel on the side of the limit plate 12, and a first oblique groove 24 and a second oblique groove 29 are also arranged on the side of the limit plate 12, the first oblique groove 24 and the second oblique groove 29 are located at both ends of the first straight groove 25 and the second straight groove 26, and the first oblique groove 24, the second oblique groove 29, the first straight groove 25 and the second straight groove 26 are connected end to end, and the inner walls of the first straight groove 25, the second oblique groove 29 and the second straight groove 26 are provided with inner grooves 28, and the inner groove 28 is provided with a slope at the end of the second straight groove 26, a sliding column 23 is slidably arranged inside the first inclined groove 24, the second inclined groove 29, the first straight groove 25 and the second straight groove 26, and the end of the sliding column 23 passes through the limit plate 12, an inner cavity is provided at the end of the sliding column 23, and a second spring rod 34 is embedded in the inner cavity, the telescopic end of the second spring rod 34 is adapted to the inner groove 28, a second sleeve ring 22 is fixedly sleeved on the surface of the sliding column 23, and a first sleeve ring 20 is slidably sleeved on the surface of the connecting column 17 through a spline, and a connecting rod 21 is fixedly connected between the first sleeve ring 20 and the second sleeve ring 22; Furthermore, the second spring rod 34 passes through the slope on the inner groove 28, so that the end of the sliding column 23 slides inside the second straight groove 26, and when the sliding column 23 slides to the connection between the second straight groove 26 and the first inclined groove 24, the sliding column 23 passes through the first inclined groove 24 and moves to the inside of the first straight groove 25.

[0024] The working principle of the present invention is as follows: first, the device is moved to the detection position in the wheat field, and the sticker 13 is attached to the corresponding vertical edge of the U-shaped frame 2; Then the electric telescopic rod 4 is started to drive the horizontal plate 3 to move downward, the horizontal plate 3 moves downward to drive the installation box 5 and the U-shaped plate 11 to move downward, the installation box 5 moves downward to drive the vertical rod 6 and the probe 7 to move downward, and the probe 7 moves downward to pass through the base 1 and insert into the soil; The U-shaped plate 11 moves downward, driving the connecting plate 10 to move downward. The connecting plate 10 moves downward, driving the electromagnet 30 and the magnetic plate 16 to move downward. The magnetic plate 16 moves downward, driving the connecting column 17 and the three-jaw chuck 18 to move downward. The three-jaw chuck 18 moves downward, driving the drawing pen 19 to move downward, so that it can be achieved to draw lines on the sticker 13. The more moisture there is in the soil, the lower the resistance is, and the stronger the fluidity of the current is. Therefore, when there is more moisture inside the soil, the greater the current passing through the electromagnet 30 is, the greater the magnetic force of the electromagnet 30 is. It can be further known that the moisture content of the soil is proportional to the magnetic force of the electromagnet 30. After the electromagnet 30 generates magnetic force, it will cause the magnetic plate 16 to move in the direction close to the electromagnet 30. The movement of the magnetic plate 16 drives the second active The movable block 33 and the first movable block 15 move and make the first spring rod 31 generate elastic force, the second movable block 33 moves to drive the connecting column 17 to move, the connecting column 17 moves to drive the three-jaw chuck 18 and the paintbrush 19 to move horizontally, so that a fold line can be drawn on the sticker 13, and the moisture content inside the soil can be further judged by observing the shape of the fold line on the sticker 13, and the moisture detection of the soil is convenient and fast. It should be noted that the movement of the connecting column 17 drives the first ring 20 and the first connecting rod 21 to move downward, the first connecting rod 21 moves downward to drive the second ring 22 and the sliding column 23 to move downward, and the sliding column 23 moves downward to drive the second spring rod 34 to move downward. When the lowest detection depth is reached, the second spring rod 34 will enter the inner groove 28; When the soil internal moisture detection is completed, the electric telescopic rod 4 contracts and drives the cross plate 3 and its connecting parts to move upward. Due to the setting of the inner groove 28, the second spring rod 34 will move along the inner groove 28 as a path, and further the sliding column 23 can pass through the second inclined groove 29 to enter the second straight groove 26. The sliding column 23 moves in the direction away from the U-shaped frame 2, driving the second ring 22, the connecting rod 21, the first ring 20, the connecting column 17, the second movable block 33, the three-jaw chuck 18 and the paintbrush 19 to move in the direction away from the U-shaped frame 2, and further the paintbrush 19 and the sticker 13 can be separated, avoiding the interference of the paintbrush 19 drawing lines on the sticker 13 during resetting. Finally, the second spring rod 34 will pass through the slope on the inner groove 28, so that the end of the sliding column 23 slides in the second straight groove 26, and when the sliding column 23 slides to the connection between the second straight groove 26 and the first inclined groove 24, the sliding column 23 will pass through the first inclined groove 24 and move to the first straight groove 25. In summary, the moisture content of the soil in the wheat field can be tested continuously by reciprocating in sequence, and the test results are clear, intuitive and comparative, which is convenient for quickly determining where the moisture content of the soil is the highest, thereby improving the use effect of the equipment.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A wheat drought monitoring soil moisture detection device, comprising a base (1), characterized in that: Also includes: A U-shaped frame (2), wherein the U-shaped frame (2) is fixedly mounted on the top of the base (1); A test component, the test component is arranged on the U-shaped frame (2), and the test component is used to be inserted into the soil to detect moisture; A marking component, the marking component being arranged on the outer side of the corresponding vertical side of the U-shaped frame (2), the marking component being also connected to the test component, and the marking component being used to mark the test result of the test component; A reset component is arranged outside a corresponding vertical side of the U-shaped frame (2), and is used to reset the marking component.

2. A wheat drought monitoring soil moisture detection device according to claim 1, characterized in that: The test assembly comprises: a horizontal plate (3), the horizontal plate (3) being horizontally arranged between two vertical sides of a U-shaped frame (2), a mounting box (5) being fixedly installed at the center of the bottom of the horizontal plate (3), and two symmetrically arranged vertical rods (6) being vertically fixed at the bottom of the mounting box (5), and probes (7) being fixedly installed at the ends of the two vertical rods (6), an electric telescopic rod (4) being vertically fixedly installed at the top of the horizontal side of the U-shaped frame (2), and the output end of the electric telescopic rod (4) passing through the horizontal side of the U-shaped frame (2), and the output end of the electric telescopic rod (4) being fixedly installed at the top of the horizontal plate (3), and a first telescopic rod (27) connected to the top of the horizontal plate (3) being vertically fixed at the bottom of the horizontal side of the U-shaped frame (2).

3. A wheat drought monitoring soil moisture detection device according to claim 2, characterized in that: The marking assembly comprises: a connecting plate (10), the connecting plate (10) being arranged on the outer shell of the vertical side of the U-shaped frame (2), and the connecting plate (10) and the vertical side of the U-shaped frame (2) are not in direct contact, two vertical grooves (8) are vertically provided on the outer side of the vertical side of the U-shaped frame (2), first sliders (9) are slidably mounted inside the two vertical grooves (8), and the ends of the two first sliders (9) are fixedly mounted on the side of the connecting plate (10), and a U-shaped plate (11) is fixedly mounted on the side of the horizontal plate (3), and the other end of the U-shaped plate (11) is fixedly mounted on the end face of the connecting plate (10).

4. A wheat drought monitoring soil moisture detection device according to claim 3, characterized in that: An electromagnet (30) with its own power supply is fixedly mounted on the side of the connection plate (10) away from the U-shaped frame (2), cables are fixedly mounted on the tops of the two probes (7), and both cables are electrically connected to the electromagnet (30) via the mounting box (5), and a sticker (13) is affixed to the side of the U-shaped frame (2).

5. A wheat drought monitoring soil moisture detection device according to claim 4, characterized in that: A magnetic plate (16) is also slidably arranged on the side of the connecting plate (10) away from the U-shaped frame (2); a first transverse groove (14) is provided on the side of the connecting plate (10); a first movable block (15) is slidably mounted inside the first transverse groove (14); an end surface of the first movable block (15) is fixedly mounted on the side of the magnetic plate (16); a first spring rod (31) is horizontally fixedly mounted on the inner end of the first transverse groove (14); and a telescopic end of the first spring rod (31) is fixedly mounted on the side of the first movable block (15).

6. A wheat drought monitoring soil moisture detection device according to claim 5, characterized in that: A second transverse groove (32) is provided on the side of the connecting plate (10) away from the electromagnet (30), and a second movable block (33) is slidably mounted inside the second transverse groove (32), a connecting column (17) is fixedly mounted horizontally on the end surface of the second movable block (33), and a three-jaw chuck (18) is fixedly mounted on the end of the connecting column (17) away from the second movable block (33), a paintbrush (19) is mounted on the three-jaw chuck (18), and the paintbrush (19) is in contact with the sticker (13) at an initial position.

7. A wheat drought monitoring soil moisture detection device according to claim 6, characterized in that: The reset assembly comprises: a limit plate (12), the limit plate (12) being vertically fixedly mounted on the outer side of the corresponding vertical side of the U-shaped frame (2), the side surface of the limit plate (12) being provided with a first straight groove (25) and a second straight groove (26) which are arranged in parallel, and the side surface of the limit plate (12) being provided with a first oblique groove (24) and a second oblique groove (29), the first oblique groove (24) and the second oblique groove (29) being located at two ends of the first straight groove (25) and the second straight groove (26), and the first oblique groove (24), the second oblique groove (29), the first straight groove (25) and the second straight groove (26) being connected end to end.

8. A wheat drought monitoring soil moisture detection device according to claim 7, characterized in that: An inner groove (28) is provided on the inner walls of the first straight groove (25), the second inclined groove (29) and the second straight groove (26), and a slope is provided at the end of the inner groove (28) located at the second straight groove (26).

9. A wheat drought monitoring soil moisture detection device according to claim 8, characterized in that: A sliding column (23) is slidably arranged inside the first inclined groove (24), the second inclined groove (29), the first straight groove (25) and the second straight groove (26), and the end of the sliding column (23) passes through the limit plate (12). An inner cavity is formed at the end of the sliding column (23), and a second spring rod (34) is embedded in the inner cavity. The telescopic end of the second spring rod (34) is matched with the inner groove (28).

10. A wheat drought monitoring soil moisture detection device according to claim 9, characterized in that: A second sleeve (22) is fixedly sleeved on the surface of the sliding column (23), and a first sleeve (20) is slidably sleeved on the surface of the connecting column (17) via a spline, and a connecting rod (21) is fixedly connected between the first sleeve (20) and the second sleeve (22).

Citation Information

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