Grassland soil detection device and detection method

Abstract

The present invention belongs to the technical field of soil detection and discloses a grassland soil detection device and a detection method. The detection device includes a sheath, three probes are slidably connected to the bottom end of the inner wall of the sheath, a control display screen is embedded in the top end of the sheath, and a tightness adjustment component is fixedly installed in the middle of the bottom end of the sheath. The tightness adjustment component includes a rotating ring rotatably connected to the inside of the sheath, a polygonal wheel for squeezing and fixing the probe is fixedly installed on the top end of the rotating ring, and a boss is rotatably connected to the top end of the polygonal wheel, which can facilitate the protection of the probe and prevent the probe from colliding with a hard object and causing bending damage, and can realize real-time monitoring of the probe position, so that the operator can make adjustments according to actual conditions, avoid repeated detection due to probe displacement, save detection time and resources, and at the same time ensure the authenticity and comparability of the detection results.

Description

Technical Field

[0001] The present invention belongs to the technical field of soil detection, and in particular relates to a grassland soil detection device and a detection method. Background Art

[0002] In the development of modern agriculture, managing grassland soil health has become particularly important. Grasslands are an essential foundation for forage growth, and soil quality directly impacts both forage growth and animal health. Traditional soil testing methods often rely on manual sampling and laboratory analysis, which is inefficient and costly. To address this, researchers and engineers have developed a series of soil testing instruments that can quickly and accurately measure various soil parameters, such as pH, nutrient content, and organic matter content, providing a scientific basis for grassland soil management. Technological advancements are driving grassland soil testing technology towards portability and automation. Existing soil testing devices first insert a probe as deep as possible into the soil, leaving approximately 1 cm of surface area. The probe then detects soil depth and displays the information on a touchscreen. However, the probe's insertion makes it difficult to observe the soil's interior, which can lead to collisions with rocks and damage, shortening its service life. Summary of the Invention

[0003] The present invention addresses the problem in the prior art that when the probe is inserted into the soil, it is inconvenient to observe the soil inside the soil, which causes the probe to collide with stones, easily causing damage to the probe, thereby shortening its service life. The present invention proposes the following technical solutions:

[0004] A grassland soil detection device comprises a sheath, three probes are slidably connected to the bottom end of the inner wall of the sheath, a control display screen is embedded in the top end of the sheath, a tightness adjustment component is fixedly installed in the middle of the bottom end of the sheath, the tightness adjustment component comprises a rotating ring rotatably connected to the inside of the sheath, a polygonal wheel for squeezing and fixing the probe is fixedly installed on the top end of the rotating ring, a boss is rotatably connected to the top end of the polygonal wheel, a main shaft with a supporting function is equidistantly rotatably connected to the outer side of the boss, a roller is fixedly connected to the outer side of one end of the main shaft and the roller is in contact with the outer side of the probe, a rotary encoder is connected to the other end of the main shaft, and a synchronous stretching component is provided at the bottom end of the sheath.

[0005] As a preferred embodiment of the above technical solution, a rubber pad is sleeved on the outer side of the polygonal wheel, and anti-slip grooves are equidistantly provided in the middle of the rubber pad. The polygonal wheel is a triangular cam, and the maximum radius of the three sides of the polygonal wheel is the same.

[0006] As a preferred embodiment of the above technical solution, two manual telescopic rods are symmetrically embedded in the middle of the bottom end of the polygonal wheel, and the same gear is clamped and installed between the bottom ends of the two manual telescopic rods. A handle is integrally formed at the bottom end of the gear.

[0007] As a preferred embodiment of the above technical solution, the outer side of the gear is meshed with an inner serrated ring, which is fixedly installed inside the sleeve. The bottom edge of the inner wall of the inner serrated ring is provided with a rounded corner, and the top of the outer surface of the gear is provided with an arc corner.

[0008] As a preferred embodiment of the above technical solution, a rectangular rod is slidably connected to the inside of the boss and the rectangular rod is fixedly installed inside the sleeve, three connecting rods are equidistantly welded on the outer surface of the boss, the main shaft is rotatably connected to the inside of the connecting rod, and the rotary encoder is fixedly installed at one end of the connecting rod.

[0009] As a preferred embodiment of the above technical solution, the synchronous stretching assembly includes a fixing ring vertically movably connected to the bottom end of the sheath, a clamping block is fixedly installed on the outer surface of the fixing ring, and a clamping block is movably connected inside the fixing ring.

[0010] As a preferred embodiment of the above technical solution, the fixed ring is composed of three circles, the three circles are fixedly connected by connecting strips, the clamping block is fixedly installed on the outside of the innermost circle, and the clamping block is movably connected between the middle circle and the innermost circle.

[0011] As a preferred embodiment of the above technical solution, the inner wall edge of the outermost circle of the fixed ring is connected to a rotating circle through a thread, the bottom end of the rotating circle is rotatably connected to a driving arm, a boss is fixedly installed in the middle of the bottom end of the driving arm, and a horizontal rod is vertically movably connected to the outside of the boss, and the horizontal rod is horizontally movably connected to the inside of the middle circle of the fixed ring, and one end of the horizontal rod is fixedly connected to one end of the clamping block.

[0012] The present invention also provides a detection method of a grassland soil detection device, comprising the following steps:

[0013] Step 1: Turn on the soil detection device;

[0014] Step 2: Pull out the probes: Clamp multiple probes with the synchronous stretching assembly, then pull the probes to move, and then separate the synchronous stretching assembly from the probes and reset them;

[0015] Step 3: Fix the probe: clamp and fix the probe through the tightness adjustment component;

[0016] Step 4: Soil detection: Insert the probe into the soil to ensure that the probe is in full contact with the soil. At this time, use the tightness adjustment component to detect whether the position of the single probe has changed. Then start the soil temperature and humidity detector to collect soil temperature and humidity data in real time and transmit it to the control display screen;

[0017] Step 5: Data recording: record and store the detected data;

[0018] Step 6: Probe recovery: Loosen the tension adjustment component and the probe, reset the probe, and then clamp the probe through the synchronous stretching component.

[0019] The beneficial effects of the present invention are:

[0020] (1) It can protect the probe and prevent the probe from being bent and damaged due to collision with hard objects. It can also realize real-time monitoring of the probe position, so that the operator can make adjustments according to the actual situation, avoid repeated testing due to probe displacement, save testing time and resources, and ensure the authenticity and comparability of the test results.

[0021] (2) It is easy to store the probes to prevent them from being exposed to the outside world and being bent by collisions with external objects. It is also easy to synchronize the movement of multiple probes so that the moving positions of the multiple probes remain consistent, so that the probes can penetrate the soil at the same time and maintain the same depth, thereby improving detection efficiency and reducing errors and time costs caused by operating a single probe.

[0022] (3) The probe can be firmly fixed in the required position to prevent it from loosening or shifting during the detection process, thereby ensuring the stability and reliability of the detection data. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The figure shows a schematic structural diagram of a grassland soil detection device in Example 1;

[0024] Figure 2 The figure shows the installation structure diagram of the probe in Example 1;

[0025] Figure 3 The figure shows the structure diagram of the coordination between the tightness adjustment component and the probe in Example 1;

[0026] Figure 4 Shown is a schematic structural diagram of the tightness adjustment assembly in Example 1;

[0027] Figure 5 Shown is a schematic structural diagram of the synchronous stretching assembly in Example 1;

[0028] Figure 6Shown is a schematic structural diagram of the clamping block in Example 1.

[0029] In the figure: 1. Sheath; 2. Probe; 3. Tension adjustment assembly; 31. Rotating ring; 32. Polygonal wheel; 33. Rubber pad; 34. Manual telescopic rod; 35. Gear; 36. Inner serrated ring; 37. Boss; 38. Rectangular rod; 39. Connecting rod; 310. Roller; 311. Rotary encoder; 312. Spindle; 4. Synchronous stretching assembly; 41. Fixed ring; 42. Clamp; 43. Rotating ring; 44. Driving arm; 45. Boss; 46. Horizontal rod; 47. Clamping block; 5. Control display screen. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments.

[0031] Example 1: The present invention provides a grassland soil detection device, such as Figures 1 to 6 As shown, it includes: a sheath 1, three probes 2 are slidably connected to the bottom end of the inner wall of the sheath 1, a rectangular strip is integrally formed on the outside of the probe 2, the rectangular strip is slidably connected to the inside of the sheath 1, a control display screen 5 is embedded in the top of the sheath 1, and a tightness adjustment component 3 is fixedly installed in the middle of the bottom end of the sheath 1, the tightness adjustment component 3 includes a rotating ring 31 rotatably connected to the inside of the sheath 1, a polygonal wheel 32 for squeezing and fixing the probe 2 is fixedly installed on the top of the rotating ring 31, a boss 37 is rotatably connected to the top of the polygonal wheel 32, and a main shaft 312 with a supporting function is equidistantly rotatably connected to the outer surface of the boss 37, a roller 310 is fixedly connected to the outer side of one end of the main shaft 312, and the roller 310 is fitted with the outer side of the probe 2, a rubber ring is sleeved on the outer side of the roller 310, and the outer side of the rubber ring and the outer surface of the probe 2 are fitted with each other, the other end of the main shaft 312 is connected to a rotary encoder 311, and a synchronous stretching component 4 is provided at the bottom end of the sheath 1.

[0032] like Figure 3 and Figure 4 As shown, a rubber pad 33 is sleeved on the outside of the polygonal wheel 32, and anti-slip grooves are equidistantly opened in the middle of the rubber pad 33. The polygonal wheel 32 is a triangular cam, and the maximum radius of the three sides of the polygonal wheel 32 is the same;

[0033] The polygonal wheel 32 is a triangular cam, and the maximum radius of the three sides is the same. During the rotation process, the contact area and contact mode of each side of the wheel with the probe 2 are consistent, which can evenly transmit force to the probe 2, making the extrusion of the probe 2 in the soil more uniform. In addition, the anti-slip grooves equidistantly opened in the middle of the rubber pad 33 increase the friction between the rubber pad 33 and the probe 2, preventing the probe 2 from sliding during the extrusion process, ensuring that the probe 2 can be stably inserted into the soil and maintained in the set position, which is conducive to improving the accuracy of soil temperature and humidity detection.

[0034] like Figure 3 and Figure 4 As shown, two manual telescopic rods 34 are symmetrically embedded and installed in the middle of the bottom end of the polygonal wheel 32, and the same gear 35 is clamped and installed between the bottom ends of the two manual telescopic rods 34. A handle is integrally formed at the bottom end of the gear 35, and an inner serrated ring 36 is meshed and connected to the outer side of the gear 35. The inner serrated ring 36 is fixedly installed inside the sheath 1. The bottom end edge of the inner wall of the inner serrated ring 36 is provided with a rounded corner, and the top of the outer surface of the gear 35 is provided with an arc corner. The cooperation of the arc corner and the rounded corner facilitates the clamping connection between the inner serrated ring 36 and the gear 35, thereby reducing the difficulty of clamping between the inner serrated ring 36 and the gear 35.

[0035] The handle can drive the gear 35 to move, and when the gear 35 moves, it drives the manual telescopic rod 34 to stretch, thereby changing the difficulty of stretching the manual telescopic rod 34. Since the gear 35 separates from the inner serrated ring 36 when it moves, and then the handle is turned, the handle drives the polygonal wheel 32 to rotate through the gear 35 and the manual telescopic rod 34, thereby changing the difficulty of rotating the polygonal wheel 32.

[0036] like Figure 3 and Figure 4 As shown, a rectangular rod 38 is slidably connected to the inside of the boss 37 and the rectangular rod 38 is fixedly installed inside the sheath 1. The rectangular rod 38 limits the boss 37 so that the boss 37 cannot rotate. Three connecting rods 39 are welded to the outer surface of the boss 37 at equal intervals. The main shaft 312 is rotatably connected to the inside of the connecting rod 39, and the rotary encoder 311 is fixedly installed at one end of the connecting rod 39.

[0037] When the probe 2 is inserted into the soil, the probe 2 comes into contact with stones or other hard objects inside the soil. At this time, the probe 2 automatically moves due to the obstruction of the hard objects. When the probe 2 automatically moves, it drives the roller 310 to rotate. When the roller 310 rotates, it drives the rotary encoder 311 to operate through the main shaft 312. When the rotary encoder 311 is running, it detects the distance moved by the probe 2, so that personnel can know the displacement of the position of the probe 2.

[0038] like Figure 2 、 Figure 5 and Figure 6 As shown, the synchronous stretching assembly 4 includes a fixing ring 41 vertically movably connected to the bottom end of the sheath 1, the outer side of the fixing ring 41 is clamped and connected to the bottom end of the inner wall of the sheath 1, a clamping block 42 is fixedly installed on the outer surface of the fixing ring 41, and a clamping block 47 is movably connected inside the fixing ring 41;

[0039] Under the action of the clamping block 47 and the clamping block 42 , the probe 2 can be squeezed and fixed, thereby reducing the difficulty of squeezing and fixing the probe 2 .

[0040] like Figure 2 、 Figure 5 and Figure 6 As shown, the fixed ring 41 is composed of three circles, which are fixedly connected by connecting strips. The clamping block 42 is fixedly installed on the outside of the innermost circle. The clamping block 47 is movably connected between the middle circle and the innermost circle. The inner wall edge of the outermost circle of the fixed ring 41 is connected to the rotating ring 43 by a thread. The bottom end of the rotating ring 43 is rotatably connected to the driving arm 44. A boss 45 is fixedly installed in the middle of the bottom end of the driving arm 44. A horizontal rod 46 is vertically movably connected to the outside of the boss 45. The horizontal rod 46 is horizontally movably connected to the inside of the middle circle of the fixed ring 41. One end of the horizontal rod 46 is fixedly connected to one end of the clamping block 47.

[0041] When the rotating circle 43 rotates and moves, it will drive the driving arm 44 to deflect and move. In this process, the angle between the driving arm 44 and the rotating circle 43 will change. The deflection and movement of the driving arm 44 will drive the boss 45 to rotate and move accordingly. The movement of the boss 45 will drive the horizontal rod 46 to move horizontally inside the middle circle of the fixed circle 41. The movement of the horizontal rod 46 will drive the clamping block 47 fixed to it to move. The movement of the clamping block 47 ultimately realizes the clamping action of the probe 2, which can firmly fix the probe 2 in the desired position and ensure its stability during the detection process.

[0042] The present invention also provides a detection method of a grassland soil detection device, which is applied to the grassland soil detection device and includes the following steps:

[0043] Step 1: Turn on the soil detection device;

[0044] Step 2: Pull out the probes: Clamp the multiple probes 2 by the synchronous stretching assembly 4, then pull the probes 2 to move, and then separate the synchronous stretching assembly 4 from the probes 2 and reset them;

[0045] Step 3: Probe fixation: clamp and fix the probe 2 using the tightness adjustment component 3;

[0046] Step 4: Soil detection: Insert the probe 2 into the soil to ensure that the probe 2 is in full contact with the soil. At this time, the tightness adjustment component 3 detects whether the position of the single probe 2 has changed. Then, the soil temperature and humidity detector is started to collect soil temperature and humidity data in real time and transmit it to the control display 5.

[0047] Step 5: Data recording: record and store the detected data;

[0048] Step 6: Probe recovery: Loosen the tightness adjustment component 3 and the probe 2, reset the probe 2, and then clamp the probe 2 through the synchronous stretching component 4.

[0049] Working principle: During actual use of the device, a person rotates the rotating circle 43. When the rotating circle 43 rotates and moves, the driving arm 44 is driven to deflect and move. During this process, the angle between the driving arm 44 and the rotating circle 43 will change. The deflection and movement of the driving arm 44 will drive the boss 45 to rotate and move accordingly. The movement of the boss 45 will then drive the horizontal rod 46 to move horizontally within the middle circle of the fixed circle 41. The movement of the horizontal rod 46 will drive the clamping block 47 fixedly connected thereto to move. The movement of the clamping block 47 ultimately realizes the clamping action of the probe 2, which can firmly fix the probe 2 in the desired position, ensuring its stability during the detection process.

[0050] Then, the synchronous stretching assembly 4 is pulled, and the synchronous stretching assembly 4 drives the multiple probes 2 to move synchronously, so that when the probe 2 moves to a predetermined position, the gear 35 can be driven to move by the handle. When the gear 35 moves, it separates from the inner serrated ring 36. Then, the handle is turned, and the handle drives the polygonal wheel 32 to rotate through the gear 35 and the manual telescopic rod 34. When the polygonal wheel 32 rotates, it drives the rotating ring 31 to rotate inside the sheath 1, and at the same time drives the three sides of the polygonal wheel 32 to ensure synchronous and uniform pressure on the three probes 2. At the same time, under the action of the rectangular rod 38, the boss 37 cannot rotate with the rotation of the polygonal wheel 32.

[0051] Then reset the synchronous stretching component 4, and then push the sheath 1, and the sheath 1 drives the probe 2 to be inserted into the soil. At this time, the probe 2 is not easy to move due to the squeezing of the rubber pad 33, and the probe 2 contacts the stones or other hard objects inside the soil. At this time, the probe 2 automatically moves due to the obstruction of the hard objects. When the probe 2 moves automatically, it drives the roller 310 to rotate. When the roller 310 rotates, it drives the rotary encoder 311 to run through the main shaft 312. When the rotary encoder 311 is running, it detects the distance moved by the probe 2, so that personnel can know the displacement of the position of the probe 2, and prevent the inaccurate detection data caused by the inconsistent positions of multiple probes 2. When it is detected that the position of the probe 2 has changed At this time, separate the entire device from the soil, then loosen the tightness adjustment component 3 to reset the probe 2, and then repeat the above operation. Finally, insert the probe 2 into the soil along the remaining places. When the probe 2 is inserted into the soil solution, the electrode will generate a corresponding potential difference according to the hydrogen ion concentration in the solution. The potential difference is in a certain proportional relationship with the pH value of the solution. By measuring the potential difference and converting it, the pH value of the soil can be obtained. At the same time, when the soil moisture increases, the conductivity of the soil increases and the resistance value decreases. Conversely, when the soil moisture decreases, the resistance value increases. By detecting the change in resistance value, the change in soil moisture can be indirectly obtained, and the change in soil moisture is displayed on the surface of the control display screen 5.

[0052] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A grassland soil detection device, characterized in that: The invention comprises a sheath (1), wherein the bottom end of the inner wall of the sheath (1) is slidably connected to three probes (2), the top end of the sheath (1) is embedded with a control display screen (5), the middle part of the bottom end of the sheath (1) is fixedly installed with a tightness adjustment component (3), the tightness adjustment component (3) comprises a rotating ring (31) rotatably connected to the inside of the sheath (1), the top end of the rotating ring (31) is fixedly installed with a polygonal wheel (32) for squeezing and fixing the probes (2), the top end of the polygonal wheel (32) is rotatably connected to a boss (37), the outer surface of the boss (37) is equidistantly rotatably connected to a main shaft (312) with a bearing function, the outer side of one end of the main shaft (312) is fixedly connected to a roller (310) and the roller (310) is attached to the outer side of the probe (2), the other end of the main shaft (312) is connected to a rotary encoder (311), and the bottom end of the sheath (1) is provided with a synchronous stretching component (4); The synchronous stretching assembly (4) comprises a fixing ring (41) vertically movably connected to the bottom end of the sheath (1), a clamping block (42) is fixedly mounted on the outer surface of the fixing ring (41), and a clamping block (47) is movably connected inside the fixing ring (41); The fixing ring (41) is composed of three circles, and the three circles are fixedly connected by a connecting strip. The clamping block (42) is fixedly installed on the outside of the innermost circle, and the clamping block (47) is movably connected between the middle circle and the innermost circle. The inner wall edge of the outermost circle of the fixed ring (41) is connected to a rotating ring (43) through a thread, the bottom end of the rotating ring (43) is rotatably connected to a driving arm (44), a boss (45) is fixedly installed in the middle of the bottom end of the driving arm (44), and a horizontal rod (46) is vertically movably connected to the outside of the boss (45), and the horizontal rod (46) is horizontally movably connected to the inside of the middle circle of the fixed ring (41), and one end of the horizontal rod (46) is fixedly connected to one end of the clamping block (47); When the rotating circle (43) rotates and moves, it drives the driving arm (44) to deflect and move. During this process, the angle between the driving arm (44) and the rotating circle (43) changes. The deflection and movement of the driving arm (44) drives the boss (45) to rotate and move accordingly. The movement of the boss (45) drives the horizontal rod (46) to move horizontally inside the middle circle of the fixed circle (41). The movement of the horizontal rod (46) drives the clamping block (47) fixedly connected to it to move. The movement of the clamping block (47) ultimately realizes the clamping action of the probe (2).

2. The grassland soil detection device according to claim 1, characterized in that: A rubber pad (33) is sleeved on the outside of the polygonal wheel (32), and anti-slip grooves are equidistantly provided in the middle of the rubber pad (33). The polygonal wheel (32) is a triangular cam, and the maximum radius of the three sides of the polygonal wheel (32) is the same.

3. The grassland soil detection device according to claim 2, characterized in that: Two manual telescopic rods (34) are symmetrically embedded and installed in the middle of the bottom end of the polygonal wheel (32), and a same gear (35) is clamped and installed between the bottom ends of the two manual telescopic rods (34). The bottom end of the gear (35) is integrally formed with a handle.

4. The grassland soil detection device according to claim 3, characterized in that: The outer side of the gear (35) is meshedly connected with an inner sawtooth ring (36), and the inner sawtooth ring (36) is fixedly installed inside the sheath (1). The bottom edge of the inner wall of the inner sawtooth ring (36) is provided with a rounded corner, and the top of the outer surface of the gear (35) is provided with an arc corner.

5. The grassland soil detection device according to claim 4, characterized in that: A rectangular rod (38) is slidably connected to the inside of the boss (37), and the rectangular rod (38) is fixedly installed inside the sheath (1). Three connecting rods (39) are welded to the outer surface of the boss (37) at equal intervals. The main shaft (312) is rotatably connected to the inside of the connecting rod (39), and the rotary encoder (311) is fixedly installed at one end of the connecting rod (39).

6. A detection method of the grassland soil detection device according to claim 5, characterized in that: The following steps are involved: Step 1: Turn on the soil detection device; Step 2: Pulling out the probes: clamping the multiple probes (2) by the synchronous stretching assembly (4), then pulling the probes (2) to move, and then separating the synchronous stretching assembly (4) from the probes (2) and resetting them; Step 3, probe fixing: clamping and fixing the probe (2) through the tightness adjustment component (3); Step 4: Soil detection: insert the probe (2) into the soil to ensure that the probe (2) is in full contact with the soil. At this time, the tightness adjustment component (3) is used to detect whether the position of the single probe (2) has changed. Then, the soil temperature and humidity detector is started to collect soil temperature and humidity data in real time and transmit it to the control display (5). Step 5: Data recording: record and store the detected data; Step 6: Probe recovery: loosen the tightness adjustment component (3) and the probe (2), reset the probe (2), and then clamp the probe (2) through the synchronous stretching component (4).

Images