Integrated layered non-contact soil moisture monitoring device

Abstract

The application discloses an integrated layered non-contact soil moisture content monitoring device and belongs to the soil monitoring field. The device comprises a base, a support frame fixedly connected to the base, a vertical plate fixedly connected to the support frame, a lifting block liftingly connected to the vertical plate, a first support ring fixedly connected to one end of the lifting block, an insertion pipe supported on the first support ring, a plurality of moisture sensors layer by layer arranged in the insertion pipe, a second support ring fixedly connected to the other end of the lifting block, a sampling pipe supported on the second support ring, a driving motor fixedly connected to the support frame, a weighter connected to the driving end of the driving motor, a weighing rod connected to the weighing end of the weighter, and a soil collecting disc connected to the weighing rod. The insertion pipe layering sensor is in-situ inserted and installed to measure water, the other side is matched with the sampling pipe to synchronously take soil, the weighing assembly completes on-site soil sample weighing comparison, and the insertion pipe into soil depth can be controlled by using a lifting gear and rack structure to realize layered arrangement.

Description

Technical Field

[0001] This invention relates to the field of soil monitoring technology, and in particular to an integrated, layered, non-contact soil moisture monitoring device. Background Technology

[0002] In modern agriculture, such as precision planting, soil and water conservation, geological disaster exploration, saline-alkali land improvement, and farmland water-saving irrigation projects, soil moisture content is a core basic indicator that characterizes soil physicochemical properties, water and fertilizer transport patterns, and regional hydrological cycle changes. Monitoring only the surface soil moisture content cannot accurately restore the true water content distribution of the soil. Therefore, layered in-situ soil moisture content detection has become the mainstream development direction of the industry.

[0003] Existing soil moisture monitoring equipment is mainly divided into two categories. One is a single-point pre-embedded sensor monitoring device, which requires trenches to be excavated at different depths in the plot to be tested in advance, and multiple moisture sensors to be buried one by one in the designated soil layer. After excavation and backfilling, the soil density changes, destroying the original soil pores and water and fertilizer distribution, and subsequent monitoring data have systematic biases.

[0004] The second type is the simple monitoring equipment with a drilled rod. Most of them are only equipped with a single detection insertion tube, which can only detect moisture content. They cannot simultaneously take soil samples from the corresponding soil layers for weighing. A separate sampler is needed to drill soil samples and transport them to the laboratory for weighing and calculation. The detection and sampling equipment are set up separately. Summary of the Invention

[0005] The purpose of this invention is to propose an integrated, non-contact, layered soil moisture monitoring device that uses an in-situ insertion tube sensor to measure moisture content, a matching sampling tube on the other side to simultaneously collect soil samples, and an independently driven weighing component to complete on-site soil sample weighing and comparison. The entire device is designed as a single integrated unit.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An integrated layered non-contact soil moisture monitoring device includes a base, a support frame fixedly connected to the base, a vertical plate fixedly connected to the support frame, a lifting block vertically connected to the vertical plate, a first support ring fixedly connected to one end of the lifting block, an insertion tube supported on the first support ring, and multiple moisture sensors layered inside the insertion tube. The other end of the lifting block is fixedly connected to a second support ring, on which a sampling tube is supported. A drive motor is fixedly connected to the support frame, and a weighing device is connected to the drive end of the drive motor. A weighing rod is connected to the weighing end of the weighing device, and a soil collection tray is connected to the weighing rod.

[0007] To achieve lifting, preferably, a servo motor is fixedly connected to the lifting block, the drive end of the servo motor is connected to a drive gear, the upright plate is a rack plate, and the drive gear meshes with the rack plate.

[0008] To secure the insertion tube, preferably, a locking rod is slidably connected to the first support ring, and a locking groove corresponding to the locking rod is provided on the insertion tube.

[0009] To further tighten the clamping mechanism, a spring is fitted onto the clamping rod, with both ends of the spring connected to the clamping rod and the first support ring, respectively.

[0010] To further secure the locking lever, a locking rod is slidably connected to the first support ring, and a locking groove matching the locking rod is provided on the locking lever.

[0011] Furthermore, a drive lever is rotatably connected to the first support ring via a rotating shaft. One end of the drive lever has a groove, and a movable shaft is slidably connected in the groove. The movable shaft is rotatably connected to the locking rod. When the insertion tube is inserted into the soil, its upper end pushes the drive lever upward. The drive lever rotates, causing the locking rod to move downward and lock into the locking groove, ensuring the locking effect.

[0012] For ease of movement, preferably, the base is equipped with casters on its bottom side.

[0013] Preferably, a detection box is connected to the upper end of the base.

[0014] Preferably, a slant frame is fixedly connected to the base, and a solar panel is rotatably connected to the slant frame via a triangular plate.

[0015] Preferably, the insertion tube and the sampling tube are respectively connected to a first connecting line and a second connecting line.

[0016] Compared with existing technologies, it has the following beneficial effects: 1. The insertion tube layer sensor is inserted in situ to measure water content, and the sampling tube on the other side is used to collect soil simultaneously. The weighing component completes the weighing and comparison of soil samples on site. The insertion depth of the insertion tube can be controlled by the lifting gear rack structure to achieve layered deployment. This effectively avoids the drawbacks of traditional monitoring equipment that requires multiple sets of equipment to operate separately for moisture content detection, soil sampling, and sample verification, and eliminates the need to send soil samples back and forth to the laboratory.

[0017] 2. The self-locking mechanism of the clamping rod spring and the lever linkage locking structure enable quick disassembly and assembly of the insertion tube and automatic locking and fixing during the insertion tube operation. The double limit prevents the insertion tube from loosening or shifting due to lateral soil compression or stone impact. When disassembling or assembling the insertion tube, simply release the lock and pull out the clamping rod, making disassembly and assembly convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the soil moisture monitoring device. Figure 2 Soil moisture monitoring device Figure 1 Schematic diagram of the structure at point A; Figure 3 This is a schematic diagram of the back structure of a soil moisture monitoring device. Figure 4 This is a schematic cross-sectional view of a soil moisture monitoring device. Figure 5 This is a schematic diagram of the structure at point B in section 4 of the soil moisture monitoring device.

[0019] In the diagram: 1. Base; 2. Support frame; 3. Vertical plate; 4. Lifting block; 5. First support ring; 6. Insertion tube; 601. Moisture sensor; 602. First connecting line; 7. Servo motor; 8. Drive gear; 9. Sampling tube; 901. Second connecting line; 51. Second support ring; 11. Drive motor; 12. Weighing device; 13. Weighing rod; 14. Soil collection tray; 15. Locking rod; 16. Spring; 18. Locking slot; 19. Drive lever; 20. Rotating shaft; 21. Slide groove; 22. Moving shaft; 23. Locking rod; 24. Locking slot; 101. Universal wheel; 102. Detection box; 103. Inclined frame; 104. Solar panel; 105. Triangle ruler; Controller. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Example 1: Refer to Figure 1 and Figure 2 An integrated layered non-contact soil moisture monitoring device includes a base 1. The base 1 is fixedly connected to a support frame 2, the support frame 2 is fixedly connected to a vertical plate 3, the vertical plate 3 is lifted and lowered connected to a lifting block 4, one end of the lifting block 4 is fixedly connected to a first support ring 5, the first support ring 5 supports an insertion tube 6, and multiple moisture sensors 601 are arranged in layers inside the insertion tube 6. The other end of the lifting block 4 is fixedly connected to a second support ring 10, and a sampling tube 9 is supported on the second support ring 10. A drive motor 11 is fixedly connected to the support frame 2. A weighing device 12 is connected to the drive end of the drive motor 11. A weighing rod 13 is connected to the weighing end of the weighing device 12. A soil collection tray 14 is connected to the weighing rod 13.

[0022] In this embodiment, the base 1 serves as the supporting body of the whole machine, and the support frame 2 is stably erected and fixed on the surface of the soil to be tested. The upright plate 3 is vertically positioned by relying on the support frame, and the lifting block 4 can slide vertically upward along the upright plate 3 to achieve height adjustment.

[0023] The lifting block 4 has a first support ring 5 and a second support ring 10 at its left and right ends, respectively, so as to realize that the insertion tube 6 and the sampling tube 9 are pressed down into the soil or lifted out of the soil simultaneously.

[0024] Reference Figure 3 During operation, the lifting block 4 slides downward, and the first support ring drives the insertion tube 6 to be vertically inserted into the soil to be tested. Multiple sets of moisture sensors 601 are pre-installed in layers along the depth of the tube. As the insertion tube penetrates into different soil layers, the moisture sensors 601 collect electrical signal data of soil moisture content at the corresponding depth, realizing in-situ layered detection.

[0025] The second support 10 drives the sampling tube 9 to be inserted into the soil layer. The sampling tube 9 drills the original soil sample at the target depth. After the lifting block 4 is lifted, the sampling tube 9 takes out the soil sample and pours the soil sample into the soil collection tray 14.

[0026] The drive motor 11 can drive the weighing device 12 to rotate. There is a soil collection plate 14 on the weighing rod 13. The weighing device 12 weighs the wet soil in the soil collection plate 14, realizing integrated monitoring of detection, sampling and weighing.

[0027] Reference Figure 2 , Figure 3 and Figure 4 A servo motor 7 is fixedly connected to the lifting block 4. A drive gear 8 is connected to the drive end of the servo motor 7. The vertical plate 3 adopts a rack plate, and the drive gear 8 meshes with the rack plate.

[0028] Servo motor 7 is fastened to the end face of lifting block 4. The output shaft of servo motor 7 drives gear 8 to rotate coaxially. The vertical plate 3 is a rack plate structure. When servo motor 7 runs in the forward direction, drive gear 8 to mesh and roll along the tooth surface of rack plate. Relying on the gear and rack meshing transmission principle, drive gear 8 is driven by the reaction force of rack to drive the lifting block 4 to move smoothly downward along the vertical plate.

[0029] When the servo motor 7 rotates in the reverse direction, the drive gear 8 engages in the reverse direction and climbs, which in turn lifts the lifting block 4 and pulls the insertion tube 6 and sampling tube 9 out of the soil layer.

[0030] Example 2: Reference Figure 1 and Figure 2An integrated layered non-contact soil moisture monitoring device includes a base 1. The base 1 is fixedly connected to a support frame 2, the support frame 2 is fixedly connected to a vertical plate 3, the vertical plate 3 is lifted and lowered connected to a lifting block 4, one end of the lifting block 4 is fixedly connected to a first support ring 5, the first support ring 5 supports an insertion tube 6, and multiple moisture sensors 601 are arranged in layers inside the insertion tube 6. The other end of the lifting block 4 is fixedly connected to a second support ring 10, and a sampling tube 9 is supported on the second support ring 10. A drive motor 11 is fixedly connected to the support frame 2. A weighing device 12 is connected to the drive end of the drive motor 11. A weighing rod 13 is connected to the weighing end of the weighing device 12. A soil collection tray 14 is connected to the weighing rod 13.

[0031] In this embodiment, the base 1 serves as the supporting body of the whole machine, and the support frame 2 is stably erected and fixed on the surface of the soil to be tested. The upright plate 3 is vertically positioned by relying on the support frame, and the lifting block 4 can slide vertically upward along the upright plate 3 to achieve height adjustment.

[0032] The lifting block 4 has a first support ring 5 and a second support ring 10 at its left and right ends, respectively, so as to realize that the insertion tube 6 and the sampling tube 9 are pressed down into the soil or lifted out of the soil simultaneously.

[0033] Reference Figure 3 During operation, the lifting block 4 slides downward, and the first support ring drives the insertion tube 6 to be vertically inserted into the soil to be tested. Multiple sets of moisture sensors 601 are pre-installed in layers along the depth of the tube. As the insertion tube penetrates into different soil layers, the moisture sensors 601 collect electrical signal data of soil moisture content at the corresponding depth, realizing in-situ layered detection.

[0034] The second support 10 drives the sampling tube 9 to be inserted into the soil layer. The sampling tube 9 drills the original soil sample at the target depth. After the lifting block 4 is lifted, the sampling tube 9 takes out the soil sample and pours the soil sample into the soil collection tray 14.

[0035] The drive motor 11 can drive the weighing device 12 to rotate. There is a soil collection plate 14 on the weighing rod 13. The weighing device 12 weighs the wet soil in the soil collection plate 14, realizing integrated monitoring of detection, sampling and weighing.

[0036] Reference Figure 2 , Figure 3 and Figure 4 A servo motor 7 is fixedly connected to the lifting block 4. A drive gear 8 is connected to the drive end of the servo motor 7. The vertical plate 3 adopts a rack plate, and the drive gear 8 meshes with the rack plate.

[0037] Servo motor 7 is fastened to the end face of lifting block 4. The output shaft of servo motor 7 drives gear 8 to rotate coaxially. The vertical plate 3 is a rack plate structure. When servo motor 7 runs in the forward direction, drive gear 8 to mesh and roll along the tooth surface of rack plate. Relying on the gear and rack meshing transmission principle, drive gear 8 is driven by the reaction force of rack to drive the lifting block 4 to move smoothly downward along the vertical plate.

[0038] When the servo motor 7 rotates in the reverse direction, the drive gear 8 engages in the reverse direction and climbs, which in turn lifts the lifting block 4 and pulls the insertion tube 6 and sampling tube 9 out of the soil layer.

[0039] Reference Figure 5 A locking rod 15 is slidably connected to the first support ring 5. A slot 18 corresponding to the locking rod 15 is opened on the insertion tube 6. When assembling the insertion tube 6, the insertion tube 6 is vertically placed into the inner annular cavity of the first support ring 5, and the locking rod 15 is pushed horizontally so that the end of the locking rod 15 is inserted into the slot 18 on the outer wall of the insertion tube 6. The locking and limiting effect of the locking rod 15 and the slot 18 is used to restrict the radial movement and circumferential rotation of the insertion tube 6 relative to the first support ring 5.

[0040] A spring 16 is fitted on the clamping rod 15, and the two ends of the spring 16 are connected to the clamping rod 15 and the first support ring 5 respectively. Pulling the clamping rod 15 outward will pull it out of the slot 18. After the clamping rod 15 is released, the spring 16 will automatically lock the end of the clamping rod 15 into the slot 18 of the insertion tube, thus achieving initial locking.

[0041] Reference Figure 5 A locking rod 23 is slidably connected to the first support ring 5, and a locking groove 24 matching the locking rod 23 is provided on the locking rod 15. A drive lever 19 is rotatably connected to the first support ring 5 via a rotating shaft 20. A sliding groove 21 is provided at one end of the drive lever 19, and a moving shaft 22 is slidably connected in the sliding groove 21. The moving shaft 22 is rotatably connected to the locking rod 23. When the insertion tube 6 is inserted downward into the soil, its upper end pushes the drive lever 19 upward. The drive lever 19 rotates and drives the locking rod 23 to move downward and lock into the locking groove 24, ensuring the locking effect.

[0042] A secondary locking and limiting structure is added to the base of the clamping rod 15. The lifting block 4 drives the first support ring 5 and the insertion tube 6 to enter the soil synchronously. The lower end of the insertion tube 6 contacts the soil and is subjected to counter pressure. The upper end face of the insertion tube 6 gradually lifts the end of the driving lever 19 that is lifted. During the rotation of the driving lever 19, the slide groove 21 slides relative to the moving shaft 22. The other end of the driving lever 19 drives the locking rod 23 to slide downward. The lower end of the locking rod 23 is engaged in the locking groove 24 of the clamping rod 15, thereby achieving a second locking during the insertion of the insertion tube into the soil.

[0043] Reference Figure 1 and Figure 3The bottom side of the base 1 is connected to casters 101. Multiple casters 101 are evenly installed and fixed at the four corners of the bottom surface of the base 1. The casters 101 can adopt a self-brake locking structure.

[0044] Reference Figure 3 The upper end of the base 1 is connected to the detection box 102. The insertion tube 6 and the sampling tube 9 are respectively connected to the first connecting line 602 and the second connecting line 901. The controller built into the detection box 102 is electrically connected to the first connecting line 602 and the second connecting line 901 to collect data. The detection box 102 integrates a data acquisition controller, a storage module and a signal conversion module. The moisture sensors 601 in each layer of the insertion tube 6 transmit the simulated electrical signals of soil moisture content at different depths to the controller through the first connecting line 602. The sensor in the sampling tube 9 transmits the sampling parameter signal synchronously through the second connecting line 901.

[0045] Reference Figure 1 and Figure 3 A slant bracket 103 is fixedly connected to the base 1. A solar panel 104 is rotatably connected to the slant bracket 103 via a triangular plate 105. The solar panel 104 is fixed to the surface of the triangular plate 105. The triangular plate 105 can drive the solar panel 104 to rotate slightly to adjust the tilt angle of the panel surface, and adjust the angle of sunlight received by the solar panel 104 according to the direction of sunlight on that day. The solar panel 104 is connected to the built-in battery of the detection box 102 through an internal energy storage circuit. Under sunlight during the day, the solar panel 104 generates electrical energy through photoelectric conversion and stores it in the battery.

[0046] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An integrated, layered, non-contact soil moisture monitoring device, comprising a base (1), characterized in that, A support frame (2) is fixedly connected to the base (1), a vertical plate (3) is fixedly connected to the support frame (2), a lifting block (4) is lifted and lowered on the vertical plate (3), a first support ring (5) is fixedly connected to one end of the lifting block (4), an insertion tube (6) is supported on the first support ring (5), and multiple moisture sensors (601) are arranged in layers inside the insertion tube (6). The other end of the lifting block (4) is fixedly connected to a second support ring (10), and a sampling tube (9) is supported on the second support ring (10). A drive motor (11) is fixedly connected to the support frame (2). A weighing device (12) is connected to the drive end of the drive motor (11). A weighing rod (13) is connected to the weighing end of the weighing device (12). A soil collection tray (14) is connected to the weighing rod (13).

2. The integrated layered non-contact soil moisture monitoring device according to claim 1, characterized in that, A servo motor (7) is fixedly connected to the lifting block (4), and a drive gear (8) is connected to the drive end of the servo motor (7). The upright plate (3) is made of rack and pinion, and the drive gear (8) meshes with the rack and pinion.

3. The integrated layered non-contact soil moisture monitoring device according to claim 1, characterized in that, A locking rod (15) is slidably connected to the first support ring (5), and a slot (18) corresponding to the locking rod (15) is opened on the insertion tube (6).

4. The integrated layered non-contact soil moisture monitoring device according to claim 3, characterized in that, A spring (16) is fitted on the lever (15), and the two ends of the spring (16) are connected to the lever (15) and the first support ring (5) respectively.

5. The integrated layered non-contact soil moisture monitoring device according to claim 3, characterized in that, A locking rod (23) is slidably connected to the first support ring (5), and a locking groove (24) matching the locking rod (23) is provided on the locking rod (15).

6. The integrated layered non-contact soil moisture monitoring device according to claim 5, characterized in that, A drive lever (19) is rotatably connected to the first support ring (5) via a rotating shaft (20). A groove (21) is provided at one end of the drive lever (19). A movable shaft (22) is slidably connected in the groove (21). The movable shaft (22) is rotatably connected to the locking rod (23).

7. The integrated layered non-contact soil moisture monitoring device according to claim 1, characterized in that, The base (1) is connected to a caster wheel (101) on its bottom side.

8. The integrated layered non-contact soil moisture monitoring device according to claim 1, characterized in that, The upper end of the base (1) is connected to the detection box (102).

9. The integrated layered non-contact soil moisture monitoring device according to claim 1, characterized in that, A slant bracket (103) is fixedly connected to the base (1), and a solar panel (104) is rotatably connected to the slant bracket (103) via a triangular plate (105).

10. The integrated layered non-contact soil moisture monitoring device according to claim 1, characterized in that, The insertion tube (6) and the sampling tube (9) are respectively connected to a first connecting line (602) and a second connecting line (901).

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