Wireless soil moisture content instrument for monitoring soil moisture content

Abstract

The utility model discloses a wireless soil moisture content instrument for monitoring soil moisture content, which relates to the technical field of soil moisture content instruments and comprises a mounting plate, a mounting rod fixedly connected inside the mounting plate, a first drill bit fixedly connected to the bottom of the mounting rod, a connecting rod fixedly connected to the top of the mounting rod, and a soil moisture content instrument body fixedly connected to the outer side of the connecting rod. A first rotating shaft is rotatably connected to the middle of the interior of the mounting rod, a first gear is fixedly connected to the outer side of the top of the first rotating shaft, a threaded sleeve is in threaded connection to the outer side of the bottom of the first rotating shaft, and a frequency domain reflection type sensor is fixedly connected to the outer side of the threaded sleeve and electrically connected with the soil moisture content instrument body; a second rotating shaft is rotationally connected to the top of the mounting plate, a second gear is fixedly connected to the outer side of the top of the second rotating shaft, and a first hand wheel is fixedly connected to the top of the second rotating shaft, the purpose of monitoring the soil moisture content of soil at different depths can be achieved, the monitoring range is widened, and high practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of soil moisture meters, in particular to a wireless soil moisture meter used for soil moisture monitoring. Background Art

[0002] The moisture content of the soil affects the growth of plants, as well as the effectiveness of fertilization and the activity of microorganisms in the soil. By controlling the distribution of water in the soil, a scientific basis can be provided for differentiated water-saving irrigation. At the same time, precise water supply is also beneficial to improving crop yield and quality. Therefore, soil moisture monitoring is the basic work for collecting information such as studying the laws of water resource circulation, agricultural and animal husbandry water-saving irrigation control, and drainage, drought resistance and disaster relief.

[0003] At present, the existing soil moisture meters are generally rod-shaped. When installing, the straight rod is inserted into the soil, and the sensors and probes at the bottom of the straight rod are used to monitor the soil moisture. However, this method can only monitor the soil moisture at a fixed depth and is not practical. Therefore, in order to solve the above problems, we propose a wireless soil moisture meter for soil moisture monitoring. Utility Model Content

[0004] The utility model aims to solve the defects in the prior art and proposes a wireless soil moisture meter for monitoring soil moisture.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A wireless soil moisture meter for monitoring soil moisture comprises a mounting plate, a mounting rod is fixedly connected inside the mounting plate, a first drill bit is fixedly connected to the bottom of the mounting rod, a connecting rod is fixedly connected to the top of the mounting rod, a soil moisture meter body is fixedly connected to the outside of the connecting rod, a first rotating shaft is rotatably connected to the middle part of the mounting rod, a first gear is fixedly connected to the outside of the top of the first rotating shaft, a threaded sleeve is threadedly connected to the outside of the bottom of the first rotating shaft, a frequency domain reflection sensor is fixedly connected to the outside of the threaded sleeve, and the frequency domain reflection sensor is electrically connected to the soil moisture meter body.

[0007] Furthermore, the top of the mounting plate is rotatably connected to a second rotating shaft, the outer side of the top of the second rotating shaft is fixedly connected to a second gear, and the top of the second rotating shaft is fixedly connected to a first hand wheel, and a through slot is provided at the top of the mounting rod, and the second gear passes through the through slot and meshes with the first gear.

[0008] Furthermore, the inner wall of the mounting rod is provided with two symmetrically arranged limiting grooves, the outer side of the threaded sleeve is fixedly connected with two symmetrically arranged limiting blocks, and the two limiting blocks are respectively arranged inside the two limiting grooves.

[0009] Furthermore, two symmetrically arranged adjusting rods are threadedly connected to the surface of the mounting plate, the tops of the two adjusting rods are fixedly connected to a second hand wheel, and the bottoms of the two adjusting rods are fixedly connected to a second drill bit.

[0010] Furthermore, a bubble level is fixedly connected to the surface of the mounting plate.

[0011] Compared with the prior art, the beneficial effect of the utility model is that the present application can adjust the position of the frequency domain reflection sensor by rotating the first hand wheel, so as to achieve the purpose of monitoring the soil moisture conditions at different depths, thereby increasing the monitoring range and having strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the installation rod of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the adjusting rod of the utility model.

[0016] In the figure: 1. mounting plate; 2. mounting rod; 3. first drill bit; 4. connecting rod; 5. soil moisture meter body; 6. adjusting rod; 7. bubble level; 8. first rotating shaft; 9. first gear; 10. threaded sleeve; 11. frequency domain reflective sensor; 12. limit groove; 13. limit block; 14. second rotating shaft; 15. second gear; 16. first hand wheel; 17. through groove; 18. second drill bit; 19. second hand wheel. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention;

[0018] Reference Figure 1-3A wireless soil moisture meter for monitoring soil moisture comprises a mounting plate 1, a mounting rod 2 is fixedly connected inside the mounting plate 1, a first drill bit 3 is fixedly connected to the bottom of the mounting rod 2, a connecting rod 4 is fixedly connected to the top of the mounting rod 2, a soil moisture meter body 5 is fixedly connected to the outside of the connecting rod 4, a first rotating shaft 8 is rotatably connected to the middle part inside the mounting rod 2, a first gear 9 is fixedly connected to the outside of the top of the first rotating shaft 8, a threaded sleeve 10 is threadedly connected to the outside of the bottom of the first rotating shaft 8, a frequency domain reflection sensor 11 is fixedly connected to the outside of the threaded sleeve 10, and the frequency domain reflection sensor 11 is electrically connected to the soil moisture meter body 5.

[0019] The top of the mounting plate 1 is rotatably connected to a second shaft 14, the outer side of the top of the second shaft 14 is fixedly connected to a second gear 15, and the top of the second shaft 14 is fixedly connected to a first hand wheel 16, a through slot 17 is provided at the top of the mounting rod 2, and the second gear 15 passes through the through slot 17 and meshes with the first gear 9.

[0020] The first drill bit 3 is set to drill the ground to make the mounting rod 2 penetrate into the soil. After the mounting plate 1 is placed horizontally, the second rotating shaft 14 can be driven to rotate by the first hand wheel 16, and then the second gear 15 drives the first gear 9 to rotate, and then the first rotating shaft 8 is rotated. During the rotation of the first rotating shaft 8, the threaded sleeve 10 will move up and down along the first rotating shaft 8, so as to adjust the position of the frequency domain reflection sensor 11 to monitor the soil moisture data of soil at different depths. The data monitored by the frequency domain reflection sensor 11 will be transmitted to the soil moisture meter body 5 via the wire.

[0021] The inner wall of the mounting rod 2 is provided with two symmetrically arranged limiting grooves 12 , and the outer side of the threaded sleeve 10 is fixedly connected with two symmetrically arranged limiting blocks 13 , which are respectively arranged inside the two limiting grooves 12 .

[0022] The provided limiting groove 12 cooperates with the limiting block 13 so that the threaded sleeve 10 can move straightly along the first rotating shaft 8 without rotating, so as to prevent the wire part of the frequency domain reflection sensor 11 from being entangled.

[0023] Two symmetrically arranged adjusting rods 6 are threadedly connected to the surface of the mounting plate 1 , the tops of the two adjusting rods 6 are fixedly connected to a second hand wheel 19 , and the bottoms of the two adjusting rods 6 are fixedly connected to a second drill bit 18 .

[0024] A bubble level 7 is fixedly connected to the surface of the mounting plate 1 .

[0025] When leveling the mounting plate 1, the adjusting rod 6 is rotated by the second hand wheel 19, and the adjusting rod 6 rotates along the screw hole on the mounting plate 1 to insert the second drill bit 18 into the soil. As the adjusting rod 6 penetrates into the soil, the bubble level 7 is observed to check whether the mounting plate 1 is horizontal. If it is horizontal, the rotation is stopped. If it is not horizontal, the depth of the two adjusting rods 6 penetrating into the soil is repeatedly adjusted to make the mounting rod 2 vertical in the soil, thereby ensuring the accuracy of the soil moisture data at each depth.

Claims

1. A wireless soil moisture meter for monitoring soil moisture, comprising a mounting plate (1), characterized in that: The interior of the mounting plate (1) is fixedly connected to a mounting rod (2), the bottom of the mounting rod (2) is fixedly connected to a first drill bit (3), the top of the mounting rod (2) is fixedly connected to a connecting rod (4), the outer side of the connecting rod (4) is fixedly connected to a soil moisture meter body (5), the middle part of the interior of the mounting rod (2) is rotatably connected to a first rotating shaft (8), the outer side of the top of the first rotating shaft (8) is fixedly connected to a first gear (9), the outer side of the bottom of the first rotating shaft (8) is threadedly connected to a threaded sleeve (10), the outer side of the threaded sleeve (10) is fixedly connected to a frequency domain reflection type sensor (11), and the frequency domain reflection type sensor (11) is electrically connected to the soil moisture meter body (5).

2. A wireless soil moisture meter for monitoring soil moisture according to claim 1, characterized in that: The top of the mounting plate (1) is rotatably connected to a second rotating shaft (14), the outer side of the top of the second rotating shaft (14) is fixedly connected to a second gear (15), and the top of the second rotating shaft (14) is fixedly connected to a first hand wheel (16), and a through slot (17) is formed at the top of the mounting rod (2), and the second gear (15) passes through the through slot (17) and meshes with the first gear (9).

3. The wireless soil moisture meter for monitoring soil moisture according to claim 1, characterized in that: The inner wall of the mounting rod (2) is provided with two symmetrically arranged limiting grooves (12), the outer side of the threaded sleeve (10) is fixedly connected with two symmetrically arranged limiting blocks (13), and the two limiting blocks (13) are respectively arranged inside the two limiting grooves (12).

4. The wireless soil moisture meter for monitoring soil moisture according to claim 1, characterized in that: The surface of the mounting plate (1) is threadedly connected to two symmetrically arranged adjusting rods (6), the tops of the two adjusting rods (6) are fixedly connected to a second hand wheel (19), and the bottoms of the two adjusting rods (6) are fixedly connected to a second drill bit (18).

5. The wireless soil moisture meter for monitoring soil moisture according to claim 1, characterized in that: A bubble level (7) is fixedly connected to the surface of the mounting plate (1).

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