Depth-keeping sampling tool for cultivated land soil

Abstract

The utility model discloses a fixed depth sampling tool for cultivated land soil, which comprises a sampler, a hammering structure and a guide structure, the sampler comprises a sampling head and at least two sampling tubes, and the hammering structure is arranged above the sampler and used for hammering the sampler. By arranging the sampler and the hammering structure, the sampler is mounted below the hammering structure, and then the driving motor can drive the crank to rotate, so that the knocking hammer can be pulled by the connecting rod to reciprocate up and down in the protective cover, the knocking hammer is driven to knock the connecting block to generate downward force, and the sliding block and the sampler can be driven to move downwards for sampling; the knocking structure is utilized to generate knocking force to act on the sliding block, so that manual drilling of a worker is not needed, on one hand, the strength of a sampling worker is saved, on the other hand, the sampling efficiency is improved, and the sampling depth can be determined by observing scale marks on the sampling pipe in a matched manner.

Description

Technical Field

[0001] The utility model relates to the field of sampling instruments, in particular to a fixed-depth sampling tool for cultivated land soil. Background Art

[0002] By sampling the soil of cultivated land, the pollutant content in the soil can be analyzed, providing a reference basis for controlling and preventing soil environmental pollution.

[0003] China Authorization Publication No. CN220188049U discloses a soil sampling tool for soil surveys, comprising a sampling tube, a drill rod, and a spiral drill bit. The top of the sampling tube is fixedly connected to an upper cover, the center of which is fixedly connected to a stainless steel joint. The stainless steel joint has a through hole and is internally threaded at both the upper and lower ends of the through hole. The drill rod includes a rotating rod, a rotating handle, and a first threaded head. The bottom of the rotating handle is fixedly connected to the top of the rotating rod, and the first threaded head is fixedly connected to the bottom of the rotating rod and can be threadedly connected to the internal thread at the top of the stainless steel joint. The utility model can sample soils of different soil types and can meet the requirements of equal volume proportions of soil collected at different depths and equal weight of soil samples collected at different mixing points. At the same time, it minimally disturbs the cultivated land, does not affect farmers' normal planting, is easy to disassemble and assemble, has a simple and reasonable structural design, is convenient and quick to use, and has strong practicality.

[0004] However, this device has the following drawbacks: The sampling operator must rotate a rotary handle to drive the auger to drill and sample the soil. Therefore, when sampling deep into the soil, relying solely on rotating the rotary handle to drive the auger to drill a hole results in low efficiency. To address these drawbacks, we propose a fixed-depth sampling tool for cultivated soil. Utility Model Content

[0005] The utility model aims to solve the shortcomings of the prior art and provides a fixed-depth sampling tool for cultivated land soil.

[0006] In order to solve the problems existing in the prior art, the present invention adopts the following technical solution: a fixed-depth sampling tool for cultivated land soil, comprising:

[0007] A sampler, comprising a sampling head and a sampling tube, wherein the number of the sampling tubes is at least two;

[0008] A hammering structure is provided above the sampler and is used to hammer the sampler, comprising a mounting plate, a protective cover fixedly mounted on the upper surface of the mounting plate, a slide groove provided on the upper surface of the mounting plate, a slider slidably mounted on the inner wall of the slide groove, a striking hammer slidably mounted on the inner wall of the protective cover, and a driving assembly disposed inside the protective cover for driving the striking hammer to move;

[0009] The driving assembly includes a crank rotatably mounted on the inner wall of the protective cover, a connecting rod hinged to the inner wall of the crank, and a motor fixedly mounted on the surface of the protective cover for driving the crank to rotate, and the lower end of the connecting rod is hinged to the upper end of the striking hammer;

[0010] The guide structure is arranged below the mounting plate and is used to guide the sampler.

[0011] Preferably, a compression spring is sleeved on the surface of the slider, a connecting block is fixedly installed on the upper surface of the slider, one end of the compression spring is fixedly connected to the lower surface of the connecting block, and the other end of the compression spring is fixedly connected to the upper surface of the mounting plate.

[0012] Preferably, a guide block is fixedly mounted on the surface of the striking hammer, and a strip groove for the guide block to slide is provided on the inner wall of the protective cover.

[0013] Preferably, a handle is fixedly mounted on the surface of the protective cover.

[0014] Preferably, the guide structure includes a guide rod fixedly mounted on the lower surface of the mounting plate, and a guide cylinder slidably mounted on the surface of the guide rod.

[0015] Preferably, the number of the guide rods is three, and the three guide rods are arranged in a circular array on the lower surface of the mounting plate, and a pedal is fixedly mounted on the lower end of the guide cylinder.

[0016] Preferably, the surface of the sampling tube is provided with scale markings.

[0017] Preferably, the top ends of the sampling tube and the sampling head are provided with internal threaded holes, and the surfaces of the sampling tube and the sliding block are provided with external threads that match the internal threaded holes.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. By setting up a sampler and a hammer structure, the sampler is installed under the hammer structure. Then, the driving motor can drive the crank to rotate, so that the connecting rod can be used to pull the hammer to move back and forth up and down in the protective cover, and the hammer is driven to knock the connecting block to generate a downward force, which can drive the slider and the sampler to move downward for sampling. The knocking structure is used to generate a knocking force on the slider, so that the staff does not need to drill holes manually. On the one hand, it saves the labor of the sampler, and on the other hand, it improves the efficiency of sampling. In addition, the sampling depth can be determined by observing the scale mark on the sampling tube.

[0020] 2. By setting up a guide structure, when the sampler is installed on the slider, the sampler can step on the pedal and use the cooperation of the guide rod and the guide cylinder to guide the moving trajectory of the sampler, so as to avoid the sampler tilting during drilling and affecting the judgment of the sampling depth. At the same time, the guide structure can be used to provide auxiliary support for the hammer structure, which is convenient for the sampler to support the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings described herein are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute undue limitations. In the accompanying drawings:

[0022] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0023] Figure 2 It is a front cross-sectional schematic diagram of the utility model;

[0024] Figure 3 This is a schematic cross-sectional view of the sampling tube of the present invention;

[0025] Figure 4 This is a schematic front cross-sectional view of the sampling head of the present utility model;

[0026] Figure 5 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0027] Serial numbers in the figure: 1 sampling head, 2 sampling tube, 3 mounting plate, 4 protective cover, 5 slider, 6 hammer, 7 crank, 8 connecting rod, 9 motor, 10 compression spring, 11 connecting block, 12 guide block, 13 handle, 14 guide rod, 15 guide cylinder, 16 pedal, 17 scale mark, 18 threaded hole, 19 external thread. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0029] See also Figure 1-5 The utility model provides a technical solution: a fixed-depth sampling tool for cultivated land soil, comprising: a sampler, a hammer structure, and a guide structure.

[0030] See Figure 1 The sampler includes a sampling head 1 and a sampling tube 2 , and there are at least two sampling tubes 2 , and a scale mark 17 is set on the surface of the sampling tube 2 .

[0031] See Figure 2 and Figure 5The hammering structure is arranged above the sampler and is used to hammer the sampler. It includes a mounting plate 3, a protective cover 4 fixedly mounted on the upper surface of the mounting plate 3, a slide groove opened on the upper surface of the mounting plate 3, a slider 5 slidably mounted on the inner wall of the slide groove, a striking hammer 6 slidably mounted on the inner wall of the protective cover 4, and a driving component arranged inside the protective cover 4 for driving the striking hammer 6 to move.

[0032] Referring to 2-4, the sampling tube 2 and the top of the sampling head 1 are both provided with an internal threaded hole 18, and the surfaces of the sampling tube 2 and the slider 5 are both provided with an external thread 19 that matches the internal threaded hole 18. The external thread 19 on the sampling tube 2 is screwed into the internal threaded hole 18 on the sampling head 1, and then the internal threaded hole 18 on the sampling tube 2 is screwed into the external thread 19 on the surface of the slider 5. The sampler can be installed on the slider 5, and multiple sampling tubes 2 can be assembled together to form a longer sampling tube 2, so that deep sampling can be performed.

[0033] See Figure 5 A compression spring 10 is sleeved on the surface of the slider 5, and a connecting block 11 is fixedly installed on the upper surface of the slider 5. One end of the compression spring 10 is fixedly connected to the lower surface of the connecting block 11, and the other end of the compression spring 10 is fixedly connected to the upper surface of the mounting plate 3. The compression spring 10 can drive the connecting block 11 away from the mounting plate 3, reserving space for the slider 5 to move downward.

[0034] See Figure 1 、 Figure 2 and Figure 5 The driving assembly includes a crank 7 rotatably mounted on the inner wall of the protective cover 4, a connecting rod 8 hinged on the inner wall of the crank 7, and a motor 9 fixedly mounted on the surface of the protective cover 4 for driving the crank 7 to rotate, and the lower end of the connecting rod 8 is hinged to the upper end of the percussion hammer 6, a guide block 12 is fixedly mounted on the surface of the percussion hammer 6, and the inner wall of the protective cover 4 is provided with a strip groove for the sliding of the guide block 12. The cooperation between the guide block 12 and the strip groove can guide the moving trajectory of the percussion hammer 6.

[0035] A handle 13 is fixedly mounted on the surface of the protective cover 4, and the sampler is installed under the hammering structure. The driving motor 9 can then drive the crank 7 to rotate, so that the connecting rod 8 can be used to pull the hammer 6 to move back and forth up and down in the protective cover 4, and drive the hammer 6 to strike the connecting block 11 to generate a downward force, thereby driving the slider 5 and the sampler to move downward for sampling. The sample will be stored in the sampling head 1 and the sampling tube 2, and the sampling depth can be determined by observing the scale mark 17. The striking structure is used to generate a striking force on the slider 5, so that the staff does not need to drill holes manually. On the one hand, it saves the sampler's effort, and on the other hand, it improves the efficiency of sampling.

[0036] See Figure 1-2The guide structure is arranged below the mounting plate 3 and is used to guide the sampler. The guide structure includes a guide rod 14 fixedly mounted on the lower surface of the mounting plate 3, and a guide cylinder 15 slidably mounted on the surface of the guide rod 14. There are three guide rods 14, and the three guide rods 14 are arranged in a circular array on the lower surface of the mounting plate 3, and a pedal 16 is fixedly mounted on the lower end of the guide cylinder 15.

[0037] When the sampler is installed on the slider 5, the sampler can step on the pedal 16 and use the cooperation of the guide rod 14 and the guide cylinder 15 to guide the moving trajectory of the sampler to avoid the sampler tilting during drilling and affecting the judgment of the sampling depth. At the same time, the guide structure can be used to provide auxiliary support for the hammer structure, making it easier for the sampler to support the device.

[0038] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited thereto. Any equivalent replacement or change made by a person skilled in the art based on the technical solution and concept of the present invention should be included in the protection scope of the present invention.

Claims

1. A soil sampling tool for cultivated land, characterized in that: include: A sampler, comprising a sampling head (1) and a sampling tube (2), wherein the number of the sampling tubes (2) is at least two; A hammering structure, the hammering structure is arranged above the sampler and is used to hammer the sampler, comprising a mounting plate (3), a protective cover (4) fixedly mounted on the upper surface of the mounting plate (3), a chute provided on the upper surface of the mounting plate (3), a slider (5) slidably mounted on the inner wall of the chute, a striking hammer (6) slidably mounted on the inner wall of the protective cover (4), and a driving assembly arranged inside the protective cover (4) for driving the striking hammer (6) to move; The driving assembly includes a crank (7) rotatably mounted on the inner wall of the protective cover (4), a connecting rod (8) hinged to the inner wall of the crank (7), and a motor (9) fixedly mounted on the surface of the protective cover (4) for driving the crank (7) to rotate, and the lower end of the connecting rod (8) is hinged to the upper end of the striking hammer (6); A guide structure is provided below the mounting plate (3) and is used to guide the sampler.

2. The cultivated land soil fixed depth sampling tool according to claim 1, characterized in that: The surface of the slider (5) is sleeved with a compression spring (10), the upper surface of the slider (5) is fixedly mounted with a connecting block (11), one end of the compression spring (10) is fixedly connected to the lower surface of the connecting block (11), and the other end of the compression spring (10) is fixedly connected to the upper surface of the mounting plate (3).

3. The cultivated land soil fixed depth sampling tool according to claim 1, characterized in that: A guide block (12) is fixedly mounted on the surface of the striking hammer (6), and a strip groove for the guide block (12) to slide is provided on the inner wall of the protective cover (4).

4. The cultivated land soil fixed depth sampling tool according to claim 1, characterized in that: A handle (13) is fixedly mounted on the surface of the protective cover (4).

5. The cultivated land soil fixed depth sampling tool according to claim 1, characterized in that: The guide structure comprises a guide rod (14) fixedly mounted on the lower surface of the mounting plate (3), and a guide cylinder (15) slidably mounted on the surface of the guide rod (14).

6. The cultivated land soil fixed depth sampling tool according to claim 5, characterized in that: The number of the guide rods (14) is three, and the three guide rods (14) are arranged in a circular array on the lower surface of the mounting plate (3), and a pedal (16) is fixedly mounted on the lower end of the guide cylinder (15).

7. The cultivated land soil fixed depth sampling tool according to claim 1, characterized in that: The surface of the sampling tube (2) is provided with a scale mark (17).

8. The cultivated land soil fixed depth sampling tool according to claim 1, characterized in that: The top ends of the sampling tube (2) and the sampling head (1) are both provided with internal threaded holes (18), and the surfaces of the sampling tube (2) and the slider (5) are both provided with external threads (19) that match the internal threaded holes (18).

Images