Sampling device for agricultural soil monitoring

Abstract

The utility model relates to the technical field of sampling devices, in particular to a sampling device for agricultural soil monitoring, which comprises a sampling barrel, a soil breaking cone is fixedly welded at the bottom of the sampling barrel, a pedal and a hydraulic auxiliary mechanism are fixedly mounted on the side edge of the sampling barrel, and an auxiliary soil sampling mechanism and a support rod are mounted on the upper side of the sampling barrel. The upper end of the supporting rod is fixedly connected with a handrail, the hydraulic auxiliary mechanism comprises hydraulic cylinders, the hydraulic cylinders are symmetrically installed on the two sides of the sampling cylinder, and hydraulic plates are arranged in cavities of the hydraulic cylinders in a sliding mode. According to the utility model, the design is reasonable, and the hydraulic auxiliary mechanism is arranged, so that the situation that the sampled soil is low in viscosity and relatively loose and cannot be brought out of the sampled soil layer is avoided, and the applicability of the device is improved; and through the arrangement of the auxiliary soil sampling mechanism, the situation that the sampled soil is difficult to take out from the sampling barrel due to high viscosity is avoided, and the applicability of the soil sampling device is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a sampling device used for agricultural soil monitoring. Background Art

[0002] Agricultural soil, also called cultivated soil, is the basis for the growth of crops. Soil conditions are improved through tillage, fertilization, irrigation and other means. In agricultural and forestry production, it is often necessary to monitor the soil conditions of the planting area in order to adjust the planting conditions of crops in a timely manner.

[0003] With reference to the utility model patent with the authorized patent number CN220039886U, an agricultural soil sampling device is developed, including an "I"-shaped bracket, a pedal is slidably connected to the outer side of the "I"-shaped bracket, limited blocks are fixedly connected to both sides of the "I"-shaped bracket and on the top of the pedal, a positioning column is fixedly connected to the bottom of the pedal, through holes are provided at both ends of the "I"-shaped bracket, and the bottom of the positioning column extends to the inside of the through hole. The agricultural soil sampling device is provided with a positioning column and a spring. When sampling soil, both feet step on the pedal, and then the pedal compresses the spring, and further the pedal drives the positioning column to move downward and insert into the soil, thereby achieving the purpose of stabilizing the position of the "I"-shaped bracket. When the soil sampling is completed, both feet leave the pedal, and then under the action of the spring, the bottom of the positioning column moves to the inside of the through hole, so as to prevent the conical structure at the bottom of the positioning column from accidentally injuring the staff.

[0004] The above patent has the following defects in use: when the soil sample is collected, if the soil sample is very viscous, it is difficult to take the soil sample out from the sampling cavity. In addition, when the soil sample is not very viscous, the inner wall of the sampling cavity lacks sliding friction, making it difficult to take the collected soil sample out of the soil layer. In summary, the above patent has insufficient applicability. Therefore, we propose a sampling device for agricultural soil monitoring to solve the above defects. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and proposes a sampling device for agricultural soil monitoring.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A sampling device for agricultural soil monitoring comprises a sampling barrel, a soil-breaking cone is fixedly welded on the bottom of the sampling barrel, a foot pedal and a hydraulic auxiliary mechanism are fixedly installed on the side of the sampling barrel, an auxiliary soil-taking mechanism and a support rod are installed on the upper side of the sampling barrel, and a handrail is fixedly connected to the upper end of the support rod; the hydraulic auxiliary mechanism comprises a hydraulic cylinder, which is symmetrically installed on both sides of the sampling barrel and a hydraulic plate is slidably arranged in the hydraulic cylinder cavity to which it belongs, a first threaded rod is rotatably installed on the outer side of the hydraulic plate, the first threaded rod is screwed through the outer side of the hydraulic cylinder and a nut is fixedly installed on the outer end of the first threaded rod, a hydraulic pipe is connected and installed inside the hydraulic cylinder, the other end of the hydraulic pipe is connected to the hydraulic cavity, a sliding block is slidably installed on the inner wall of the hydraulic cavity, and a plug-in convex body is installed on the sliding block; the auxiliary soil-taking mechanism comprises a second threaded rod, the second threaded rod is screwed through the inner side of the sampling barrel and a sliding circular plate is rotatably installed on the lower end of the second threaded rod, a swivel is arranged on the upper end of the second threaded rod, and a plurality of connecting rods are fixedly connected between the swivel and the second threaded rod.

[0008] Preferably, the foot pedals are symmetrically installed along both sides of the sampling tube and anti-slip teeth are provided on the foot pedals.

[0009] Preferably, the sampling tube and the soil-breaking cone are both made of stainless steel.

[0010] Preferably, the hydraulic cylinder, the hydraulic pipe and the hydraulic cavity are all filled with hydraulic oil.

[0011] Preferably, the nut is a circular rotating body and the outer ring of the nut is provided with an anti-slip groove.

[0012] Preferably, the cross-sectional shapes of the hydraulic chamber and the slider are both circular, and the plug-in protrusions are evenly distributed in a plurality of groups along the outer side surface of the slider.

[0013] Preferably, the outer diameter of the sliding circular plate is matched with the inner diameter of the sampling tube, and the sliding circular plate is in sliding contact with the inner wall of the sampling tube.

[0014] When the cam is in a state of being fully depressed, the hydraulic cylinder is used for the hydraulic oil pump, and the hydraulic oil pump of the hydraulic cylinder is turned on the cam, so that the cam can be turned on the hydraulic cylinder to make the hydraulic oil in the hydraulic cylinder cavity be pumped to the hydraulic cylinder through the hydraulic oil pipe. When the cam is in a state of being fully depressed, the hydraulic oil pipe can be turned on the cam, and the hydraulic oil pipe can be turned on the cam to make the hydraulic oil in the hydraulic cylinder cavity be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity to be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity to be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity to be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity to be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity to be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity to be pumped to the hydraulic cylinder cavity to make the hydraulic oil in the hydraulic cylinder cavity to be pumped to the hydraulic cylinder cavity to

[0015] In the utility model, a sampling device for agricultural soil monitoring is provided with an auxiliary soil sampling mechanism. When the soil sample taken by the sampling tube has a large viscosity and is difficult to be taken out from the inside of the sampling tube, the rotating ring is rotated at this time, and the rotating ring drives the second threaded rod to rotate through the connecting rod. The threaded rod drives the sliding circular plate rotatably connected to the lower end of the second threaded rod to slide downward on the inner wall of the sampling tube through the threaded driving relationship with the sampling tube, and the sampled soil attached to the inner wall of the sampling tube is pushed out from the lower opening of the sampling tube, thereby avoiding the situation that the sampled soil has a large viscosity and is difficult to be taken out from the inside of the sampling tube, and further improving the applicability of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a sampling device for agricultural soil monitoring proposed by the utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of a sampling device for agricultural soil monitoring proposed by the utility model;

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of part A in the middle.

[0019] In the figure: 1. sampling tube; 2. soil-breaking cone; 3. foot pedal; 31. anti-skid teeth; 4. hydraulic auxiliary mechanism; 41. hydraulic cylinder; 42. hydraulic plate; 43. first threaded rod; 44. nut; 45. hydraulic pipe; 46. hydraulic chamber; 47. slider; 48. plug-in convex body; 5. auxiliary soil-taking mechanism; 51. second threaded rod; 52. connecting rod; 53. swivel; 54. sliding circular plate; 6. support rod; 7. handrail. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figure 1-3 A sampling device for agricultural soil monitoring includes a sampling tube 1, a soil-breaking cone 2 is fixedly welded to the bottom of the sampling tube 1, a foot pedal 3 and a hydraulic auxiliary mechanism 4 are fixedly installed on the side of the sampling tube 1, an auxiliary soil-taking mechanism 5 and a support rod 6 are installed on the upper side of the sampling tube 1, and a handrail 7 is fixedly connected to the upper end of the support rod 6.

[0022] In this embodiment, the hydraulic auxiliary mechanism 4 includes a hydraulic cylinder 41, which is symmetrically installed on both sides of the sampling cylinder 1 and a hydraulic plate 42 is slidably arranged in the cavity of the hydraulic cylinder 41 to which it belongs. A first threaded rod 43 is rotatably installed on the outer side of the hydraulic plate 42. The first threaded rod 43 is threadedly connected to the outer side of the hydraulic cylinder 41 and a nut 44 is fixedly installed on the outer end of the first threaded rod 43. A hydraulic pipe 45 is installed in the interior of the hydraulic cylinder 41, and the other end of the hydraulic pipe 45 is connected to a hydraulic cavity 46. A slider 47 is slidably installed on the inner wall of the hydraulic cavity 46, and a plug-in protrusion 48 is installed on the slider 47. The hydraulic cylinder 41, the hydraulic pipe 45 and the hydraulic cavity 46 are all filled with hydraulic oil.

[0023] Through the above structure, rotating the nut 44 drives the first threaded rod 43 to drive the hydraulic plate 42 to slide in the cavity of the hydraulic cylinder 41. When the first threaded rod 43 drives the hydraulic plate 42 to slide inward, the hydraulic plate 42 also transports the hydraulic oil in the cavity of the hydraulic cylinder 41 through the hydraulic pipe 45 to the inner side of the hydraulic cavity 46 on the lower side. Under the action of the hydraulic pressure, the slider 47 on the inner side of the hydraulic cavity 46 drives the plug-in protrusion 48 fixedly connected to the outer side thereof to slide inward. When the inner side of the sampling cylinder 1 is full of sample soil, the plug-in protrusion 48 is inserted into the soil sample, thereby increasing the friction between the inner wall of the sampling cylinder 1 and the sample soil, so that the sample soil can be taken out when the sampling cylinder 1 is pulled out.

[0024] In this embodiment, the auxiliary soil taking mechanism 5 includes a second threaded rod 51, which is threadedly connected to the inner side of the sampling tube 1 and a sliding circular plate 54 is rotatably installed at the lower end of the second threaded rod 51. A swivel 53 is arranged at the upper end of the second threaded rod 51. A plurality of connecting rods 52 are fixedly connected between the swivel 53 and the second threaded rod 51. The outer diameter of the sliding circular plate 54 is matched with the inner diameter of the sampling tube 1, and the sliding circular plate 54 is in sliding contact with the inner wall of the sampling tube 1.

[0025] Through the above structure, the rotating ring 53 can drive the second threaded rod 51 to rotate, and the second threaded rod 51 drives the sliding circular plate 54 rotatably connected at its lower end to slide on the inner wall of the sampling tube 1 through the screw connection. When the sample soil adheres to the inside of the sampling tube 1 and is difficult to pour out, the second threaded rod 51 can be driven to drive the sliding circular plate 54 to move downward to push the sample soil inside the sampling tube 1 out from the bottom of the sampling tube 1.

[0026] In this embodiment, the nut 44 is a circular rotating body and an anti-slip groove is provided on the outer ring of the nut 44 . The cross-sectional shapes of the hydraulic cavity 46 and the slider 47 are both circular. Several groups of plug-in protrusions 48 are evenly distributed along the outer side of the slider 47 .

[0027] Through the above structure, the anti-slip groove setting of the nut 44 improves the friction of the nut 44, making it easy to drive the first threaded rod 43 for adjustment when holding the nut 44. The multiple groups of settings of the plug-in protrusions 48 increase the plug-in friction of the plug-in protrusions 48 on the sampling soil.

[0028] In this embodiment, the foot pedals 3 are symmetrically installed along the two sides of the sampling tube 1 and anti-slip teeth 31 are provided on the foot pedals 3 .

[0029] Through the above structure, the setting of the foot pedal 3 makes it easy to use the foot to apply downward pressure to the sampling tube 1 during sampling, so that the sampling tube 1 can penetrate into the soil layer to perform sampling operations.

[0030] In this embodiment, the sampling tube 1 and the soil-breaking cone 2 are both made of stainless steel.

[0031] Through the above structure, the sampling tube 1 and the soil-breaking cone 2 are both designed with stainless steel materials, which improves their corrosion resistance.

[0032] In the utility model, when in use, the handrail 7 is held to align the soil-breaking cone 2 on the lower side of the sampling tube 1 with the soil sampling area, and the handrail 7 is pressed hard to make the sampling tube 1 sink. During the process, the foot is stepped on the foot pedal 3, and the leg strength is used to apply pressure to the sampling tube 1. When the sampling tube 1 reaches the sampling soil layer, the nut 44 is rotated to drive the first threaded rod 43 to drive the hydraulic plate 42 to slide inward, and the hydraulic plate 42 transports the hydraulic oil in the cavity of the hydraulic cylinder 41 through the hydraulic pipe 45 to the inner side of the hydraulic cavity 46 on the lower side. Under the action of the hydraulic pressure, the slider 47 on the inner side of the hydraulic cavity 46 drives the plug-in protrusion 48 fixedly connected to the outer side thereof to slide inward, and the plug-in protrusion 48 is plugged into the soil sample, thereby increasing the friction between the inner wall of the sampling tube 1 and the sample soil. The sampling tube 1 is subsequently pulled out, Then take out the sample soil from the inner wall of the sampling tube 1. First, rotate the nut 44 to drive the first threaded rod 43 to drive the hydraulic plate 42 to slide toward the outside of the hydraulic cylinder 41. Then, the oil starts to return to the cavity of the hydraulic cylinder 41. Then, the hydraulic cavity 46 on the lower side drives the slider 47 and the plug-in protrusion 48 on the slider 47 to retract to the inside of the hydraulic cavity 46 under the negative pressure of the returning oil. Then, the plug-in protrusion 48 releases the plug-in effect on the sample soil. At this time, the sample soil can be poured out of the sampling tube 1. If the sample soil is too viscous and cannot be poured out, rotate the swivel 53 to drive the second threaded rod 51 to rotate and drive the sliding circular plate 54 rotatably connected to its lower end to slide downward on the inner wall of the sampling tube 1. The sliding circular plate 54 moves downward to push the sample soil on the inside of the sampling tube 1 out of the bottom of the sampling tube 1.

[0033] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0034] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sampling device for agricultural soil monitoring, characterized in that: The sampling tube (1) comprises a soil-breaking cone (2) fixedly welded to the bottom of the sampling tube (1), a foot pedal (3) and a hydraulic auxiliary mechanism (4) fixedly installed on the side of the sampling tube (1), an auxiliary soil-taking mechanism (5) and a support rod (6) installed on the upper side of the sampling tube (1), and a handrail (7) fixedly connected to the upper end of the support rod (6); The hydraulic auxiliary mechanism (4) comprises a hydraulic cylinder (41), the hydraulic cylinder (41) is symmetrically mounted on both sides of the sampling cylinder (1) and is provided with a hydraulic plate (42) slidably arranged in the cavity of the hydraulic cylinder (41), a first threaded rod (43) is rotatably mounted on the outer side of the hydraulic plate (42), the first threaded rod (43) is threadedly connected to pass through the outer side of the hydraulic cylinder (41) and a nut (44) is fixedly mounted on the outer end of the first threaded rod (43), a hydraulic pipe (45) is installed in communication with the interior of the hydraulic cylinder (41), the other end of the hydraulic pipe (45) is connected with a hydraulic cavity (46), a sliding block (47) is slidably mounted on the inner wall of the hydraulic cavity (46), and a plug-in protrusion (48) is mounted on the sliding block (47); The auxiliary soil taking mechanism (5) comprises a second threaded rod (51), the second threaded rod (51) is threadedly connected to the inner side of the sampling tube (1), and a sliding circular plate (54) is rotatably mounted on the lower end of the second threaded rod (51), a rotating ring (53) is arranged on the upper end of the second threaded rod (51), and a plurality of connecting rods (52) are fixedly connected between the rotating ring (53) and the second threaded rod (51).

2. A sampling device for agricultural soil monitoring according to claim 1, characterized in that: The foot pedal (3) is symmetrically installed along both sides of the sampling tube (1) and anti-slip teeth (31) are provided on the foot pedal (3).

3. A sampling device for agricultural soil monitoring according to claim 1, characterized in that: The sampling tube (1) and the soil-breaking cone (2) are both made of stainless steel.

4. A sampling device for agricultural soil monitoring according to claim 1, characterized in that: The hydraulic cylinder (41), the hydraulic pipe (45) and the hydraulic chamber (46) are all filled with hydraulic oil.

5. A sampling device for agricultural soil monitoring according to claim 1, characterized in that: The nut (44) is a circular rotating body and an outer ring of the nut (44) is provided with an anti-slip groove.

6. A sampling device for agricultural soil monitoring according to claim 1, characterized in that: The cross-sectional shapes of the hydraulic chamber (46) and the slider (47) are both circular, and the plug-in protrusions (48) are evenly distributed in a plurality of groups along the outer side surface of the slider (47).

7. A sampling device for agricultural soil monitoring according to claim 1, characterized in that: The outer diameter of the sliding circular plate (54) is matched to the inner diameter of the sampling tube (1), and the sliding circular plate (54) is in sliding contact with the inner wall of the sampling tube (1).

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