Field soil detection device

Abstract

The invention discloses a field soil detection device which comprises a first cam, a second cam, a first rolling body and a second rolling body, and the first cam and the second cam are provided with a first inclined plane and a second inclined plane respectively. Progressive actions that the sensor probe is inserted into and pulled out of the soil are realized through a linkage mechanism of the inclined planes of the first cam and the second cam and the first rolling body and the second rolling body, so that the sensor probe is prevented from violently shaking due to sudden stress, and stable contact with the soil during measurement is ensured; and the track shoe and the ground during detection are relatively static, so that a sensor probe is inserted into shallow soil and stays for a period of time, vibration interference during vehicle driving is effectively buffered, and the device can perform relatively static detection with the soil during continuous advancing.

Description

Technical Field

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

[0002] Testing the physical and chemical properties of field soil, such as electrical conductivity, humidity, and temperature, is of great significance for guiding fertilization, irrigation, and other agricultural production. In particular, mastering the overall distribution of these soil indicators is an inevitable requirement for achieving precision agriculture. However, current soil property testing generally involves collecting soil samples and sending them to the laboratory for testing, or using handheld instrument probes to insert into the soil for testing on-site. This method is slow, inefficient, and labor-intensive, making large-scale field testing difficult. The use of autonomous navigation and vehicle-mounted instruments for automatic testing faces the same problem.

[0003] In the field of soil conductivity testing, a vehicle-mounted field soil conductivity testing system based on the current-voltage four-terminal method has emerged. This system achieves real-time monitoring by inserting a sensor probe into the soil. However, during actual testing, the sensor probe moves with the tractor, and the tractor vibrates during operation, adversely affecting the test data and causing significant fluctuations. Furthermore, the sensor probe needs to be inserted into the soil to a certain depth for operation, which can significantly alter the structural morphology of the soil surface. Therefore, there is room for improvement.

[0004] In view of this, the inventors specially designed a field soil detection device that can be used to detect soil conductivity, temperature, humidity and other indicators, which led to the present case. Summary of the Invention

[0005] In order to solve the above problems, the technical solutions of the present invention are as follows:

[0006] A field soil detection device, comprising:

[0007] A cam detection structure is provided on a traveling mechanism, which is provided on a vehicle. The cam detection structure detects soil properties through the traveling mechanism, which includes:

[0008] A chassis, a crawler track and a rolling support component, wherein the rolling support component is arranged on the chassis, the crawler track is arranged on the rolling support component, and the crawler track includes a plurality of extended track shoes;

[0009] The cam detection structure includes:

[0010] a first cam, disposed on the chassis, and having a first inclined surface;

[0011] a second cam, disposed on the chassis, the second cam being spaced apart from the first cam, and the second cam being provided with a second inclined surface;

[0012] a telescopic member, provided on the extended track shoe;

[0013] a sensor probe, disposed on the telescopic member;

[0014] a first rolling body, disposed at an end of the telescopic member away from the sensor probe, wherein the movement of the chassis drives the first inclined surface to move, so that the first inclined surface is pressed against the first rolling body, and the first inclined surface and the first rolling body move relative to each other, gradually generating downward pressure, which is transmitted to the sensor probe through the first rolling body, gradually pressing the sensor probe partially into the soil;

[0015] The second rolling body is coaxially connected to the first rolling body, and the second rolling body is arranged on the telescopic member, wherein the movement of the chassis drives the second inclined surface to move so that the second inclined surface contacts the second rolling body, and the second inclined surface and the second rolling body move relative to each other and gradually form an upward pulling force, and the upward pulling force is transmitted to the sensor probe through the second rolling body, gradually pulling it out of the soil.

[0016] Preferably, a pressing portion is provided on the first cam, and the pressing portion is pressed on the first rolling body. The pressing portion and the first rolling body move relative to each other and completely press the sensor probe into the soil.

[0017] Preferably, the first inclined surface forms a first path, the pressing portion forms a horizontal surface configured as a second path, and an angle is formed between the first path and the second path;

[0018] The first path and the second path pass through the first rolling body, so that the first rolling body reaches a predetermined position.

[0019] Preferably, the second inclined surface has a first position and a second position, and the second inclined surface moves from the second position to the first position.

[0020] Preferably, the second inclined surface forms a third path, the first path and the second path act on the first rolling element in sequence, and the third path acts on the second rolling element.

[0021] Preferably, the first rolling body is configured as a first roller, and the second rolling body is configured as a second roller.

[0022] Preferably, the first inclined surface is inclined toward a first direction, and the second inclined surface is inclined toward a second direction, and the two inclined surfaces are in opposite directions.

[0023] Preferably, it further comprises: a cylinder, which is arranged in the extended track shoe, the telescopic member is arranged in the cylinder, and a through hole is opened in the cylinder;

[0024] The telescopic member includes: a collector and a connecting rod, the sensor probe is arranged on the collector, the connecting rod is arranged at one end of the collector away from the sensor probe, and the connecting rod is connected to the first and second rolling elements;

[0025] The connecting rod transmits downward pressure to the collector to insert the sensor probe into the soil through the through hole.

[0026] Preferably, the telescopic member further comprises:

[0027] A guide post is disposed in the cylinder; guide sleeves are provided at both ends of the cylinder, and the guide post is inserted into and matched with the guide sleeves;

[0028] A first elastic member is arranged on the outer periphery of the guide column;

[0029] The second elastic member is arranged on the connecting rod in the cylinder, and the second elastic member is located between the collector and the cylinder.

[0030] Preferably, the collector is signal-connected to the vehicle-mounted host computer.

[0031] The technical solution provided by the present invention has the following beneficial effects:

[0032] According to the field soil detection device of an embodiment of the present invention, the progressive insertion and removal of the sensor probe is achieved through the linkage mechanism between the first cam and the second cam and the first rolling body and the second rolling body. The contact stability between the track shoe and the ground during detection is ensured, and the device can perform detection while being relatively stationary relative to the soil while continuously moving forward. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0034] in:

[0035] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present invention;

[0036] Figure 2 It is a side structural schematic diagram of the present invention;

[0037] Figure 3 is a structural diagram of the telescopic member in Example 1;

[0038] Figure 4 yes Figure 3 A schematic diagram of the structure at center A;

[0039] Figure 5 This is a schematic structural diagram of the telescopic member in the present invention in an extended state;

[0040] Figure 6 This is a schematic diagram of the overall structure of the second embodiment of the present invention;

[0041] Figure 7 It is a structural diagram of the telescopic member in the second embodiment;

[0042] Figure 8 1 is a diagram showing the operating status of a field soil detection device on a traveling mechanism according to an embodiment of the present invention.

[0043] Reference numerals:

[0044] 1. Chassis; 2. Track; 21. Track shoe; 3. Rolling support component; 31. Cylinder; 4. First cam; 41. First inclined surface; 42. Pressing portion; 5. Second cam; 51. Second inclined surface; 6. Telescopic member; 61. Collector; 62. Connecting rod; 63. Guide column; 64. Guide sleeve; 65. First elastic member; 66. Second elastic member; 67. Elastic damping element; 7. Sensor probe; 8. First rolling element; 81. First roller; 9. Second rolling element; 91. Second roller. DETAILED DESCRIPTION

[0045] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Specific embodiment 1

[0047] like Figures 1-8 As shown, the present invention proposes a field soil detection device, including: a cam detection structure, which is arranged on a traveling mechanism, which is arranged on a vehicle, and the cam detection structure detects soil properties through the traveling mechanism. The traveling mechanism includes a chassis 1, a crawler 2 and a rolling support component 3, the rolling support component 3 is arranged on the chassis 1, and the crawler 2 is arranged on the rolling support component 3, the rolling support component 3 is used to support the crawler 2 in operation, and the rolling support component 3 guides the crawler 2 to rotate along a predetermined path; the crawler 2 includes a plurality of extended track shoes 21;

[0048] The cam detection structure includes:

[0049] The first cam 4 is provided on the chassis 1 and has a first inclined surface 41;

[0050] The second cam 5 is provided on the chassis 1 and is spaced apart from the first cam 4. The second cam 5 is provided with a second inclined surface 51. The first inclined surface 41 and the second inclined surface 51 are flat or curved surfaces. The curved surface can make the vertical movement of the telescopic member smoother.

[0051] The telescopic member 6 is provided on the extended track shoe 21;

[0052] A sensor probe 7 is provided on the telescopic member 6. In this embodiment, the sensor probe 7 is a conductivity sensor;

[0053] The first rolling element 8 is provided at the end of the telescopic member 6 away from the sensor probe 7. The movement of the chassis 1 drives the first inclined surface 41 to move, so that the first inclined surface 41 is pressed against the first rolling element 8. The first inclined surface 41 and the first rolling element 8 move relative to each other and gradually form a downward force. The downward force is transmitted to the sensor probe 7 through the first rolling element 8, gradually pressing it partially into the soil.

[0054] The second rolling body 9 is coaxially connected to the first rolling body 8, and the second rolling body 9 is arranged on the telescopic member 6, wherein the movement of the chassis 1 drives the second inclined surface 51 to move, so that the second inclined surface 51 contacts the second rolling body 9, and the second inclined surface 51 and the second rolling body 9 move relative to each other and gradually form an upward pulling force, which is transmitted to the sensor probe 7 through the second rolling body 9, gradually pulling it out of the soil. Through the inclined surface design of the first cam 4 (downward pressure) and the second cam 5 (upward pull), combined with the linkage of the rolling bodies, the sensor probe 7 is inserted into and pulled out of the soil in a progressive manner, avoiding the sensor probe 7 from vigorous shaking due to sudden force, ensuring stable contact with the soil during measurement, and the sensor probe 7 is only driven by the cam mechanism to be inserted into the shallow soil during measurement. Due to the properties of the crawler 2 and the track shoe 21, when the detection device moves, it remains relatively stationary with the ground, so that the sensor probe 7 is inserted into the shallow soil and stays for a period of time, effectively buffering the vibration interference during vehicle driving, improving the accuracy of the measurement effect and eliminating the need to stop, thereby improving detection efficiency.

[0055] Specifically, such as Figure 1-Figure 5 The first cam 4 is provided with a pressing portion 42, which is pressed on the first rolling body 8. The pressing portion 42 and the first rolling body 8 move relative to each other and press the sensor probe 7 completely into the soil. Through the rigid pressure design of the pressing portion 42 of the first cam 4, the device realizes that the sensor probe 7 is pressed into the soil quickly, accurately and at full depth, solving the problems of poor contact and depth deviation that may be caused by progressive insertion.

[0056] Specifically, such as Figure 1-Figure 5First inclined surface 41 forms a first path, while pressing portion 42 forms a horizontal surface configured as a second path. An angle is formed between the first and second paths. The first and second paths pass through first rolling element 8, causing first rolling element 8 to reach a predetermined position. The angle formed by first inclined surface 41 and the horizontal surface of pressing portion 42 allows downward force to be transmitted gradually and stably along the first and second paths. This helps ensure that the sensor probe 7 is smoothly loaded during insertion into the soil, preventing damage to the sensor probe 7 or inaccurate insertion depth due to sudden, strong impacts. This improves detection accuracy and ensures that the sensor probe 7 accurately reaches the predetermined soil depth for detection.

[0057] For details, please refer to Figure 1-Figure 5 The second inclined surface 51 has a first position and a second position. The second inclined surface 51 moves from the second position to the first position. When the second inclined surface 51 moves from the second position to the first position, the impact and vibration on the sensor probe 7 and the entire detection device can be effectively reduced, avoiding damage to the sensor probe 7 or loosening of the internal structure of the device due to instantaneous and forceful pulling out of the sensor probe 7, thereby improving the stability and reliability of the device and extending its service life.

[0058] For details, please refer to Figure 1-Figure 5 The second inclined surface 51 forms a third path. The first path and the second path act on the first rolling element 8 in sequence, and the third path acts on the second rolling element 9. The first path and the second path act on the first rolling element 8 in sequence, and the third path acts on the second rolling element 9. This allows for precise control of the insertion and removal depths of the sensor probe 7. This allows the sensor probe 7 to accurately reach the predetermined soil depth during testing, thereby obtaining more accurate soil conductivity data and improving detection accuracy.

[0059] For details, please refer to Figure 3-Figure 5 The first rolling element 8 is configured as a first roller 81, and the second rolling element 9 is configured as a second roller 91. When the first roller 81 applies downward pressure to the sensor probe 7, it can more stably push the sensor probe 7 deeper into the soil, ensuring that it reaches the accurately predetermined depth, thereby obtaining more accurate soil conductivity data at that depth. When the second roller 91 pulls out the sensor probe 7, it can more flexibly adjust the speed and force of the pull-out, ensuring that the sensor probe 7 is completely and smoothly removed from the soil. This prevents damage or sticking of the sensor probe 7 due to excessive or insufficient pulling force, thereby improving detection reliability.

[0060] For details, please refer to Figure 1 The first inclined surface 41 is inclined toward the first direction, and the second inclined surface 51 is inclined toward the second direction, and the two inclined directions are opposite, which makes it more convenient to measure and lift the sensor probe 7.

[0061] For details, please refer to Figure 1-Figure 5 , further comprising: a cylinder 31, which is arranged on the extended track shoe 21, a telescopic member 6 is arranged in the cylinder 31, and a through hole is opened on the cylinder 31; the telescopic member 6 includes a collector 61 and a connecting rod 62, the sensor probe 7 is arranged on the collector 61, the connecting rod 62 is arranged at one end of the collector 61 away from the sensor probe 7, and the connecting rod 62 is connected to the first and second rolling elements 9; the connecting rod 62 transmits downward pressure to the collector 61 to insert the sensor probe 7 into the soil through the through hole.

[0062] For details, please refer to Figure 1-Figure 5 The telescopic member 6 further includes a guide post 63, which is disposed in the cylinder 31; guide sleeves 64 are provided at both ends of the cylinder 31, and the guide post 63 is inserted into and cooperates with the guide sleeves 64. The cooperation between the guide post 63 and the guide sleeve 64 provides a precise linear motion guide for the telescopic member 6, ensuring that the collector 61 and the sensor probe 7 can move in a straight line when inserted into and removed from the soil;

[0063] A first elastic member 65 is provided on the periphery of the guide post 63. The first elastic member 65 is provided on the periphery of the guide post 63 and can buffer and absorb external impact forces during the movement of the telescopic member 6. When the sensor probe 7 needs to be pulled out of the soil, the first elastic member 65 can provide a certain elastic force to help overcome the adsorption force or friction force of the soil on the sensor probe 7, making the pulling out process smoother.

[0064] The second elastic member 66 is provided on the connecting rod 62 in the cylinder 31 and is located between the collector 61 and the cylinder 31 to avoid rigid collision between the collector 61 and the cylinder 31 .

[0065] For details, please refer to Figures 1-8 The collector 61 is connected to the vehicle-mounted host computer signal, and the vehicle-mounted host computer generates a field soil information dot matrix map based on the detection data and location information. Specific embodiment 2

[0067] The present application provides a field soil detection device, referring to Figure 6-Figure 7 Compared with the first embodiment, the first cam 4 is significantly shorter, the distance between the first cam 4 and the second cam 5 is significantly increased, the first elastic member 65 and the second elastic member 66 are eliminated, and an elastic damping element 67 is installed on the guide column 63. Due to the shortened length of the first cam 4, the impact of the vehicle body on the probe during detection is significantly reduced. The probe is only on the track shoe 21 and in the soil, avoiding interference from other components and ensuring accurate detection. The elastic damping element 67 prevents the telescopic mechanism from falling under its own weight.

[0068] In summary, the field soil testing device according to the present invention utilizes a linkage mechanism between the first and second cams 4 and 5 and the first and second rolling elements 8 and 9 to achieve progressive insertion and removal of the sensor probe 7. By maintaining the track shoe 21 relative to the ground during testing, the soil testing probe maintains stable contact with the soil, enabling the device to continuously test while remaining stationary relative to the soil. Furthermore, the sensor probe 7 of the present invention can also be configured as a humidity or temperature probe, making it suitable for testing soil conductivity, temperature, humidity, and the content of various soil nutrients.

[0069] The field soil testing device according to the embodiment of the present invention and the other components and operations described are well known to those skilled in the art and will not be described in detail here. The vertical, horizontal, and front-to-back directions are those shown in the figure.

[0070] In the description of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or the first and second features being in contact not directly but through another feature therebetween. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is at a higher level than the second feature.

[0071] Throughout this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" indicate that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0072] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. A field soil detection device, characterized in that: include: A cam detection structure is provided on a traveling mechanism, wherein the traveling mechanism is provided on a vehicle, and the cam detection structure detects soil properties through the traveling mechanism; The walking mechanism comprises a chassis (1), a crawler (2) and a rolling support component (3); the rolling support component (3) is arranged on the chassis (1); the crawler (2) is arranged on the rolling support component (3); and the crawler (2) comprises a plurality of extended crawler shoes (21); The cam detection structure includes: A first cam (4) is arranged on the chassis (1), and a first inclined surface (41) is provided on the first cam (4); A second cam (5) is arranged on the chassis (1), and the second cam (5) is spaced apart from the first cam (4), and a second inclined surface (51) is provided on the second cam (5); A telescopic member (6) is provided on the extended track shoe (21); A sensor probe (7) is arranged on the telescopic member (6); A first rolling body (8) is arranged at one end of the telescopic member (6) away from the sensor probe (7); the chassis (1) moves to drive the first inclined surface (41) to move, so that the first inclined surface (41) is pressed against the first rolling body (8); and the first inclined surface (41) and the first rolling body (8) move relative to each other and gradually form a downward pressure, which is transmitted to the sensor probe (7) through the first rolling body (8), gradually pressing it partially into the soil; The second rolling body (9) is coaxially connected to the first rolling body (8), and the second rolling body (9) is arranged on the telescopic member (6), wherein the movement of the chassis (1) drives the second inclined surface (51) to move, so that the second inclined surface (51) contacts the second rolling body (9), and the second inclined surface (51) and the second rolling body (9) move relative to each other and gradually form an upward pulling force, which is transmitted to the sensor probe (7) through the second rolling body (9) to gradually pull it out of the soil.

2. The field soil detection device according to claim 1, characterized in that: The first cam (4) is provided with a pressing portion (42), which is pressed on the first rolling body (8). The pressing portion (42) and the first rolling body (8) move relative to each other and completely press the sensor probe (7) into the soil.

3. The field soil detection device according to claim 2, characterized in that: The first inclined surface (41) forms a first path, the pressing portion (42) forms a horizontal surface configured as a second path, and an angle is formed between the first path and the second path; The first path and the second path pass through the first rolling body (8), so that the first rolling body (8) reaches a predetermined position.

4. The field soil detection device according to claim 1, characterized in that: The second inclined surface (51) has a first position and a second position, and the second inclined surface (51) moves from the second position to the first position.

5. The field soil detection device according to claim 3, characterized in that: The second inclined surface (51) forms a third path, the first path and the second path act on the first rolling body (8) in sequence, and the third path acts on the second rolling body (9).

6. The field soil detection device according to claim 1, characterized in that: The first rolling element (8) is configured as a first roller (81), and the second rolling element (9) is configured as a second roller (91).

7. The field soil detection device according to claim 1, characterized in that: The first inclined surface (41) is inclined toward a first direction, and the second inclined surface (51) is inclined toward a second direction, with the two inclined directions being opposite.

8. The field soil detection device according to claim 1, characterized in that: Also includes: A cylinder (31) is arranged on the extended track shoe (21), the telescopic member (6) is arranged in the cylinder (31), and a through hole is opened on the cylinder (31); The telescopic member (6) comprises: a collector (61) and a connecting rod (62); the sensor probe (7) is arranged on the collector (61); the connecting rod (62) is arranged at one end of the collector (61) away from the sensor probe (7); and the connecting rod (62) is connected to the first and second rolling bodies (9); The connecting rod (62) transmits downward pressure to the collector (61) to insert the sensor probe (7) into the soil through the through hole.

9. The field soil detection device according to claim 8, characterized in that: The telescopic member (6) further comprises: A guide column (63) is disposed in the cylinder (31); Guide sleeves (64) are provided at both ends of the cylinder (31), and the guide column (63) is inserted into the guide sleeves (64) and matched with the guide sleeves (64); A first elastic member (65) is arranged on the outer periphery of the guide column (63); It also includes: a second elastic member (66) arranged on the connecting rod (62) in the cylinder (31), and the second elastic member (66) is located between the collector (61) and the cylinder (31).

10. The field soil detection device according to claim 8, wherein: The collector (61) is connected to the vehicle-mounted host computer via a signal.

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