A kind of original soil taking device for grassland area

Abstract

The present invention discloses an original soil sampling device for grassland area, which belongs to the field of soil sampling equipment, including a soil sampling sleeve, a soil sampling shovel and an original soil sampling and pulling device, wherein the soil sampling sleeve includes an outer tube and an inner tube, wherein the outer tube is sleeved outside the inner tube, and the original soil sampling and pulling device includes a force arm, wherein the number of the force arms is set to two. When the present invention is used, the outer tube is first smashed into the soil, and then the inner tube is inserted into the outer tube, and when the inner tube is inserted into the outer tube, the limit strip should be kept in the slide groove, and then the inner tube is also smashed into the soil, and when the upper end of the inner tube is flush with the upper end of the outer tube, the soil between the outer tube and the inner tube is taken out by using the soil sampling shovel, and then the original soil sampling and pulling device is inserted into the gap between the outer tube and the inner tube, and finally the handle is held tightly and pulled upward to take out the entire inner tube, and in this way, the integrity of the soil can be kept to the maximum extent, and the soil is prevented from being damaged and affecting the experimental data during the soil sampling process.

Description

Technical Field

[0001] The invention relates to the field of soil sampling equipment, in particular to an original soil sampling device for grassland areas. Background Art

[0002] Original soil samples refer to soil samples that relatively maintain the natural structure and natural moisture content of the soil, and can more truly reflect the physical and mechanical properties of natural soil, such as density, natural moisture content, permeability coefficient, compression coefficient and shear strength.

[0003] At present, soil samples are mainly collected in grassland areas by using soil drills or by digging soil profiles. The diameter and height of the original soil collected by using soil drills are limited, which is not conducive to indoor simulation tests. Digging soil profiles will cause great damage to the surface, and it is also difficult to ensure the integrity of the original soil collected. Therefore, the present invention provides an original soil sampler for grassland areas to solve the above-mentioned problems. Summary of the invention

[0004] The object of the present invention is to provide a grassland area original state soil taking device to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A grassland area original soil sampling device comprises a soil sampling sleeve, a soil sampling shovel and an original soil sampling and pulling device, wherein the soil sampling sleeve comprises an outer cylinder and an inner cylinder, wherein the outer cylinder is sleeved on the outside of the inner cylinder, and the original soil sampling and pulling device comprises a force arm, wherein the number of the force arms is set to two, and the two force arms are cross-rotatably connected to each other, the lower end of the connecting block is fixedly connected to a resistance arm, and an original soil lifting cylinder is movably connected between the two resistance arms.

[0007] As a further solution of the present invention, a limit strip is fixedly connected to the outer wall of the inner cylinder, and two sliding grooves are provided on the inner wall of the outer cylinder.

[0008] As a further solution of the present invention, the raw soil pulling cylinder is composed of two clamping plates, and the clamping plates are arranged in an arc shape.

[0009] As a further solution of the present invention, the ends of the clamping plates that are away from each other are fixedly connected with a plurality of limit buckles, and the plurality of limit buckles are evenly arranged on the outer wall of the clamping plates, and the resistance arms pass through the limit buckles in sequence from top to bottom.

[0010] As a further solution of the present invention, a plurality of saw teeth are provided at the lower end of the clamping plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. When the present invention is used, the outer cylinder is first smashed into the soil, and then the inner cylinder is inserted into the outer cylinder. When the inner cylinder is inserted into the outer cylinder, the limit bar must be kept in the slide groove, and then the inner cylinder is also smashed into the soil. When the upper end of the inner cylinder is flush with the upper end of the outer cylinder, the soil between the outer cylinder and the inner cylinder is taken out by using a soil shovel, and then the original soil taking and pulling device is inserted into the gap between the outer cylinder and the inner cylinder. Finally, the handle is held tightly and pulled upward to take out the entire inner cylinder. In this way, the integrity of the soil can be maintained to the maximum extent, avoiding the soil being damaged in the process of taking the soil and affecting the experimental data.

[0013] 2. The present invention has the characteristics of simple structure and easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The present invention is a schematic structural diagram of an original soil taking and lifting device in an original soil taking device for grassland areas.

[0015] Figure 2 This is a schematic diagram of the structure of a lifting rod in an original soil sampler for grassland areas.

[0016] Figure 3 This is a schematic diagram of the structure of a pulling cylinder in an original soil sampler for grassland areas.

[0017] Figure 4 This is a schematic diagram of the connection between the buckle and the pulling cylinder in an original soil sampler in grassland areas.

[0018] Figure 5 This is a schematic diagram of an enlarged bottom structure of the clamping plate in an original soil sampler for grassland areas.

[0019] Figure 6 This is a schematic diagram of the connection between the inner cylinder and the outer cylinder in an original soil sampler for grassland areas.

[0020] Figure 7 This is a schematic diagram of the disassembly of the inner cylinder and the outer cylinder in an original soil sampler for grassland areas.

[0021] Figure 8 The present invention is a schematic diagram of the structure of a soil shovel in an original soil taking device in grassland areas.

[0022] In the figure: 1, outer cylinder; 100, slide; 2, soil shovel; 3, original soil extraction and lifting device; 311, handle; 312, force arm; 313, connecting block; 314, resistance arm; 321, clamping plate; 322, limit buckle; 323, sawtooth; 11, inner cylinder; 110, limit strip. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] See also Figures 1 to 8 In an embodiment of the present invention, a grassland area original soil extractor comprises an extracting sleeve, an extracting shovel 2 and an original soil extracting and pulling device 3, the extracting sleeve comprises an outer cylinder 1 and an inner cylinder 11, the outer cylinder 1 and the inner cylinder 11 are both made of hollow steel pipes, and the lower ends of the outer cylinder 1 and the inner cylinder 11 are both chamfered to make it easier for the outer cylinder 1 and the inner cylinder 11 to break the soil, a limiting strip 110 is fixedly connected to the outer wall of the inner cylinder 11, the length of the limiting strip 110 is the same as the length of the inner cylinder 11, and the lower end of the limiting strip 110 is chamfered to make it easier for the outer cylinder 1 and the inner cylinder 11 to break the soil, two slide grooves 100 are provided on the inner wall of the outer cylinder 1, the length of the slide grooves 100 is the same as the length of the outer cylinder 1, the outer cylinder 1 is sleeved outside the inner cylinder 11, and there is a gap between the outer cylinder 1 and the inner cylinder 11;

[0025] The original soil extraction and lifting device 3 includes a force arm 312, the number of which is set to two, the two force arms 312 are cross-rotatably connected to each other, the two force arms 312 are fixedly connected with a handle 311, the lower ends of the two force arms 312 are detachably connected with a connecting block 313, the connecting block 313 is connected to the force arm 312 by screws, the lower end of the connecting block 313 is fixedly connected with a resistance arm 314, the resistance arm 314 is composed of two steel bars, one end of the two steel bars is fixedly connected, and the other end is separated from each other, the two resistance arms 3 14 is movably connected with an original soil lifting cylinder, which is composed of two clamping plates 321. The clamping plates 321 are arranged in an arc shape. The two clamping plates 321 do not contact each other, and the ends of the two clamping plates 321 that are away from each other are fixedly connected with a plurality of limit buckles 322. The plurality of limit buckles 322 are evenly arranged on the outer wall of the clamping plates 321, and the resistance arm 314 passes through the limit buckles 322 from top to bottom in sequence. The resistance arm 314 is connected to the clamping plate 321 through the limit buckles 322, and the lower end of the clamping plate 321 is provided with a plurality of saw teeth 323.

[0026] The working principle of the present invention is:

[0027] When the present invention is used, the outer cylinder 1 is first hammered into the soil (the outer cylinder 1 is not completely immersed in the soil), and then the inner cylinder 11 is inserted into the outer cylinder 1. When the inner cylinder 11 is inserted into the outer cylinder 1, the limit strip 110 must be kept in the slide groove 100, and then the inner cylinder 11 is also hammered into the soil. When the upper end of the inner cylinder 11 is flush with the upper end of the outer cylinder 1, the soil between the outer cylinder 1 and the inner cylinder 11 is taken out by the soil shovel 2, and then the clamping plate 321 of the original soil taking and pulling device 3 is inserted into the gap between the outer cylinder 1 and the inner cylinder 11, and then the resistance arm 314 is inserted into the limit buckle 322, and finally the handle 311 is held tightly and pulled upward to remove the inner cylinder 11 as a whole. In this way, the integrity of the soil can be maintained to the greatest extent, avoiding damage to the soil during the soil taking process that affects the experimental data.

[0028] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A grassland area original soil sampling device, comprising a soil sampling sleeve, a soil sampling shovel (2) and an original soil sampling and lifting device (3), characterized in that: The soil extraction sleeve comprises an outer tube (1) and an inner tube (11), wherein the outer tube (1) is sleeved on the outside of the inner tube (11); the original soil extraction and pulling device (3) comprises a force arm (312), wherein the number of the force arms (312) is set to two, and the two force arms (312) are cross-rotatably connected to each other, and the lower ends of the two force arms (312) are detachably connected to a connecting block (313), and the connecting block (313) is connected to the force arms (312) by screws, and the lower end of the connecting block (313) is fixedly connected to a resistance arm (314), and an original soil pulling cylinder is movably connected between the two resistance arms (314); a limiting strip (110) is fixedly connected to the outer wall of the inner tube (11), and two sliding grooves (100) are provided on the inner wall of the outer tube (1); the original soil pulling cylinder is composed of two clamping plates (321), and the clamping plates (321) are arranged in an arc shape.

2. The grassland original soil sampler according to claim 1, characterized in that: A plurality of limit buckles (322) are fixedly connected to the ends of the clamping plates (321) that are away from each other. The limit buckles (322) are evenly arranged on the outer wall of the clamping plates (321), and the resistance arms (314) pass through the limit buckles (322) in sequence from top to bottom.

3. The grassland area original soil sampler according to claim 1, characterized in that: A plurality of saw teeth (323) are provided at the lower end of the clamping plate (321).

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