Layered undisturbed soil collecting device

Abstract

The utility model discloses a layered undisturbed soil collecting device which comprises a punching outer pipe and a punching inner pipe, a base is arranged above the punching outer pipe, a motor is installed above the base, an output shaft of the motor penetrates through the base downwards and is connected with a self-locking reducer pipe joint, the self-locking reducer pipe joint is connected with the punching outer pipe / the punching inner pipe, and the punching outer pipe is connected with the punching inner pipe. A support is arranged outside the outer punching pipe, the inner punching pipe is formed by combining a first arc-shaped steel pipe and a second arc-shaped steel pipe, and the first arc-shaped steel pipe and the second arc-shaped steel pipe are fixed through a connecting buckle. The upper partition plate, the lower partition plate, the supporting rod, the telescopic piece and the gradienter are arranged so that sampling can be conducted on the vertical section, the punching outer pipe and the punching inner pipe are arranged to be used in cooperation so that hierarchy of soil samples can be guaranteed, and soil column samples can be taken out easily through the punching inner pipe composed of the first arc-shaped steel pipe and the second arc-shaped steel pipe. Therefore, the hierarchy and integrity of the sample are kept.

Description

Technical Field

[0001] The utility model relates to the technical field of soil measurement, in particular to a layered undisturbed soil sampling device. Background Technique

[0002] Soil is one of the material bases for human survival, and the condition of the soil environment is directly related to ecological safety and the safety of agricultural products. In order to better understand the soil condition and provide professional guidance for farmland irrigation and drainage, pollution control or land condition improvement, and promote the better growth of crops, it is necessary to take layered samples of undisturbed soil and conduct relevant analyses. The common method for taking layered soil samples is to use an auxiliary sampler for sampling. Common samplers are tools such as Luoyang shovels and earth drills. The traditional method is not only time-consuming and laborious, but also has many problems. First, when the sampler drills, due to uneven force or angle reasons, samples on a vertical section or the same plane cannot be obtained; second, during the process of applying force, the sampler is extremely likely to change the structure of the soil, resulting in an undisturbed soil sample that is not clearly layered; third, when the Luoyang shovel takes out the soil column, due to insufficient friction between the soil sample and the contact surface of the sampler, it is very difficult to peel off the soil sample with high viscosity, and it cannot maintain its original state, which also affects subsequent sampling. Content of the Utility Model

[0003] The purpose of the utility model is to provide a layered undisturbed soil sampling device, which can ensure that sampling is carried out on a vertical section, ensure the layering of soil samples, and is easy to take out from the sampling device, solving the problems in the prior art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A layered undisturbed soil sampling device includes a punching outer tube and a punching inner tube. A base is provided above the punching outer tube, and a motor is installed above the base. The output shaft of the motor penetrates downward through the base and is connected to a self-locking variable diameter pipe joint. The self-locking variable diameter pipe joint is connected to the punching outer tube / punching inner tube. A bracket is provided outside the punching outer tube. The punching inner tube is formed by combining a first arc-shaped steel pipe and a second arc-shaped steel pipe. The first arc-shaped steel pipe and the second arc-shaped steel pipe are fixed outside by a connecting buckle.

[0006] Preferably, both the punching outer tube and the punching inner tube are composed of several hollow steel pipes with equal lengths, and the hollow steel pipes are connected by bolts.

[0007] Preferably, sampling scales are provided on the outer peripheral surfaces of both the punching outer tube and the punching inner tube, and serrated drills are installed at the lowermost ends of the punching outer tube and the punching inner tube.

[0008] Preferably, the cross-section of the first arc-shaped steel pipe is 2 / 3 of a circle, and the cross-section of the second arc-shaped steel pipe is 1 / 3 of a circle.

[0009] Preferably, the bracket includes an upper partition board, a lower partition board, support rods, telescopic members and a spirit level. The four corners of the upper partition board and the lower partition board are respectively connected by a support rod. The support rod is provided with a telescopic member, and a spirit level is further installed on the top of the upper partition board.

[0010] Preferably, circular holes for the punching outer pipe / punching inner pipe to penetrate are provided at the center positions of the upper partition board and the lower partition board, and the bottom ends of the support rods are provided with pointed ends.

[0011] Preferably, the connection buckles are symmetrically arranged in pairs. Edge portions are provided on both sides of the connection buckle, and screw holes for installing bolts are provided on the edge portions.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. The present utility model is provided with an upper partition board, a lower partition board, support rods, telescopic members and a spirit level. By adjusting, the axes of the circular holes in the upper partition board and the lower partition board are on the same vertical line, ensuring the vertical state of the punching outer pipe / punching inner pipe passing through the two circular holes, and further enabling it to obtain soil samples on the vertical section, making the sampling more representative and accurate.

[0014] 2. The present utility model is provided with a punching outer pipe and a punching inner pipe for combined use. The punching outer pipe is drilled into the soil in sequence, and the punching inner pipe is drilled into its pipe. Then, the punching outer pipe is first pulled out, so that the soil outside the punching inner pipe is relatively loose, and it is easier to completely and labor-savingly take out the punching inner pipe, thereby ensuring the integrity and layering of the soil column in the punching inner pipe.

[0015] 3. The punching inner pipe in the present utility model is composed of a first arc-shaped steel pipe and a second arc-shaped steel pipe. After the punching inner pipe is taken out, the first arc-shaped steel pipe is used as the bearing pipe for the soil column, and the second arc-shaped steel pipe is turned over, facilitating the taking out of the soil column sample from the punching inner pipe and avoiding more damage to the soil column sample during taking out, thereby maintaining its integrity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an axonometric view of the overall structure of the present utility model;

[0017] Figure 2 is a schematic view of the punching inner pipe of the present utility model;

[0018] Figure 3 is an axonometric view of the connection buckle of the present utility model;

[0019] Figure 4 is a schematic view of the unfolded state of the punching inner pipe of the present utility model;

[0020] Figure 5 is a schematic view of the bracket of the present utility model;

[0021] In the figure: 1. Drilling outer pipe; 2. Base; 21. Handle; 3. Motor; 31. Self-locking variable-diameter pipe joint; 4. Drilling inner pipe; 41. Connecting buckle; 42. Bolt; 5. First arc-shaped steel pipe; 6. Second arc-shaped steel pipe; 7. Bracket; 71. Upper partition board; 72. Lower partition board; 73. Support rod; 74. Telescopic member; 75. Level; 76. Round hole; 77. Pointed tip; 8. Sampling scale; 9. Serrated drill bit. Specific implementation mode

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] In order to solve the problems in the prior art that samples on the vertical section cannot be obtained during sampling, the hierarchy of the samples is damaged, and the samples are difficult to be taken out from the sampling device, the following technical solutions are given. Please refer to Figures 1-5 ;

[0024] A layered undisturbed soil sampling device includes a drilling outer pipe 1 and a drilling inner pipe 4. A base 2 is provided above the drilling outer pipe, a motor 3 is installed above the base 2, and handles 21 are also installed on both sides of the base 2. The output shaft of the motor 3 penetrates downward through the base 2 and is connected to a self-locking variable-diameter pipe joint 31. The self-locking variable-diameter pipe joint 31 is connected to the drilling outer pipe 1 / the drilling inner pipe 4. A bracket 7 is provided outside the drilling outer pipe 1. The drilling inner pipe 4 is formed by combining a first arc-shaped steel pipe 5 and a second arc-shaped steel pipe 6. The first arc-shaped steel pipe 5 and the second arc-shaped steel pipe 6 are fixed into a complete sampling pipeline through connecting buckles 41.

[0025] Both the drilling outer pipe 1 and the drilling inner pipe 4 are composed of several hollow steel pipes of equal length, and the hollow steel pipes are connected by bolts. The number of sections can be increased or decreased according to sampling needs; Sampling scales 8 are provided on the outer peripheral surfaces of the drilling outer pipe 1 and the drilling inner pipe 4 to observe the sampling depth. Serrated drill bits 9 are installed at the lowermost ends of the drilling outer pipe 1 and the drilling inner pipe 4 to drill the soil through the serrated drill bits 9.

[0026] The cross-section of the first arc-shaped steel pipe 5 is 2 / 3 of a circle, and the cross-section of the second arc-shaped steel pipe 6 is 1 / 3 of a circle. After sampling, the first arc-shaped steel pipe 5 can support the columnar soil sample, and the second arc-shaped steel pipe 6 can be opened to facilitate the extraction of the soil sample; The connecting buckles 41 are symmetrically arranged in pairs. Edge portions are provided on both sides of the connecting buckles 41, and screw holes for installing bolts 42 are opened on the edge portions.

[0027] The support 7 includes an upper partition plate 71, a lower partition plate 72, support rods 73, telescopic members 74, and a spirit level 75. The four corners of the upper partition plate 71 and the lower partition plate 72 are respectively connected by a support rod 73. The telescopic member 74 is provided on the support rod 73 to adjust the relative height of each support rod 73, facilitating the upper partition plate 71 and the lower partition plate 72 to maintain a horizontal state. A spirit level 75 is also installed on the top of the upper partition plate 71, and the horizontal condition of the upper partition plate 71 and the lower partition plate 72 can be detected through the spirit level 75. Circular holes 76 for the punching outer tube 1 / punching inner tube 4 to pass through are provided at the center positions of the upper partition plate 71 and the lower partition plate 72. The radius of the circular hole 76 can be adjusted to adapt to the diameters of the punching outer tube 1 and the punching inner tube 4. By adjustment, the axes of the upper and lower two circular holes 76 are on the same vertical line, thereby ensuring the vertical state of the punching outer tube 1 / punching inner tube 4 passing through the two circular holes 76, enabling it to obtain soil samples on the same vertical section. The bottom end of the support rod 73 is provided with a pointed head 77, which is convenient for inserting into the surface soil.

[0028] Working principle: Select a sampling location, place the support rods 73 to keep the upper partition plate 71 and the lower partition plate 72 horizontal, adjust the diameter of the circular hole 76 according to the punching outer tube 1. First, pass the punching outer tube 1 through the circular holes 76 in sequence, connect the upper end to the motor 3 through the self-locking variable-diameter pipe joint 31, and control the number of drilling joints according to the set sampling depth. Start the motor 3 and hold the handle 21 until the punching outer tube 1 reaches the set depth. Then, remove the motor 3 from the punching outer tube 1, connect the punching inner tube 4 in the same steps, adjust the circular hole 76 according to the diameter of the punching inner tube 4, and drill in place after passing through the circular hole 76. After reaching the fixed depth, first take out the punching outer tube 1. At this time, the soil around the punching inner tube 4 is relatively loose, and the punching inner tube 4 can be taken out completely and simply. After the punching inner tube 4 is taken out, remove the serrated drill bit 9 and the connecting buckle 41, and open the second arc-shaped steel pipe 6, thus obtaining a complete cylindrical soil sample. Record the lithology of the cylindrical soil column according to the sampling scale 8 and take the required precise stratified samples as required.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0030] Although embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model.

Claims

1. A layered undisturbed soil sampling device, comprising a punching outer tube (1) and a punching inner tube (4), characterized in that, Above the said perforating outer tube, there is a base (2). Above the base (2), a motor (3) is installed. The output shaft of the motor (3) penetrates downward through the base (2) and is connected to a self-locking variable-diameter pipe joint (31). The self-locking variable-diameter pipe joint (31) is connected to the perforating outer tube (1) / perforating inner tube (4). Outside the perforating outer tube (1), there is a bracket (7). The perforating inner tube (4) is formed by combining a first arc-shaped steel pipe (5) and a second arc-shaped steel pipe (6). The first arc-shaped steel pipe (5) and the second arc-shaped steel pipe (6) are fixed outside by connecting buckles (41).

2. The layered undisturbed soil sampling device according to claim 1, wherein Both the perforating outer tube (1) and the perforating inner tube (4) are composed of several hollow steel pipes with equal lengths, and the hollow steel pipes are connected by bolts.

3. The layered undisturbed soil sampling device according to claim 2, wherein, Sampling scales (8) are provided on the outer peripheral surfaces of both the perforating outer tube (1) and the perforating inner tube (4). Serrated drill bits (9) are installed at the lowermost ends of the perforating outer tube (1) and the perforating inner tube (4).

4. The layered undisturbed soil sampling device according to claim 3, characterized in that, The cross-section of the first arc-shaped steel pipe (5) is 2 / 3 of a circle, and the cross-section of the second arc-shaped steel pipe (6) is 1 / 3 of a circle.

5. The layered undisturbed soil sampling device according to claim 4, characterized in that, The bracket (7) includes an upper partition board (71), a lower partition board (72), support rods (73), telescopic members (74) and a level (75). The four corners of the upper partition board (71) and the lower partition board (72) are respectively connected by a support rod (73). The telescopic member (74) is provided on the support rod (73). A level (75) is also installed on the top of the upper partition board (71).

6. The layered undisturbed soil sampling device according to claim 5, characterized in that, Round holes (76) for the perforating outer tube (1) / perforating inner tube (4) to penetrate are provided at the center positions of both the upper partition board (71) and the lower partition board (72). The bottom ends of the support rods (73) are provided with pointed tips (77).

7. The layered undisturbed soil sampling device according to claim 6, wherein The connecting buckles (41) are symmetrically arranged in pairs. Edge portions are provided on both sides of the connecting buckles (41), and screw holes for installing bolts (42) are provided on the edge portions.

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