Soil sampling device

Abstract

The utility model belongs to the technical field of soil sampling equipment, and particularly relates to a soil sampling device which comprises an extension rod capable of being connected with a soil sampling drilling machine, the extension rod is connected with a sampler, the sampler comprises a sampling barrel and a plurality of sample storage tubes, the bottom end of the sampling barrel is provided with soil breaking teeth, and the sampling barrel is provided with two oppositely arranged stepped openings. A clamping opening communicated with the stepped opening is formed in the inner wall of the sampling barrel, a cover piece is embedded in the stepped opening, a clamping block matched with the clamping opening is arranged at the bottom end of the cover piece, a sleeve used for fixing the cover piece is installed at the top end of the sampling barrel, the sample storage pipe comprises a pipe body and end covers arranged at the two ends of the pipe body in a sleeving mode, and a cylindrical sliding block is installed in the sampling barrel in a sliding mode; the cylindrical sliding block is provided with two oppositely arranged spring lock pins, and the sampling barrel is provided with reserved grooves corresponding to the spring lock pins, so that the sampling device is used for solving the problems that a sample is inconvenient to take out from the sampling barrel, the sample is seriously damaged, and the storage and transportation are inconvenient at the same time in the existing sampling device.

Description

Technical Field

[0001] The utility model belongs to the technical field of soil sampling equipment, and in particular relates to a soil sampling device. Background Art

[0002] In the background survey of ecosystem carbon pool reserves, the soil of different ecosystems can be used as the research object, the soil organic carbon content can be analyzed, and the soil carbon pool reserves of different ecosystems in the study area can be quantified; by studying the soil organic carbon content of different ecosystems in the study area, analyzing the determination of physical carbon components (particulate carbon and mineral-bound carbon) and chemical carbon components (microbial carbon) indicators, the contribution ratio and differences of soil carbon components in different forms can be clarified; based on the soil organic carbon density data of the above study area, the current status and spatial pattern of carbon reserves can be estimated. When collecting soil samples, a soil sampling device is required. At present, most soil sampling devices use a sampling drill to drill the sampling tube into the soil to complete the sampling, and then the sampling tube can be taken out from the ground to complete the sampling. However, it is more troublesome to clean the sample in the sampling tube when the soil is taken out from the sampling tube. At the same time, it is not convenient to quickly complete the soil samples taken when the sampling times are large. Utility Model Content

[0003] Based on the problems mentioned in the above background technology, the utility model provides a soil sampling device for solving the problem that the current sampling device is not convenient for taking out the sample from the sampling tube and is not convenient for completing the process quickly.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A soil sampling device comprises an extension rod that can be connected to a soil sampling drill, the extension rod is connected to a sampler, the sampler comprises a sampling barrel and a plurality of sample storage tubes, the bottom end of the sampling barrel is provided with soil breaking teeth, the sampling barrel is provided with two oppositely arranged stepped openings, the inner wall of the sampling barrel is provided with a bayonet connected to the stepped openings, a cover sheet is embedded in the stepped opening, the cover sheet matches the stepped opening, a block matching the bayonet is provided at the bottom end of the cover sheet, a sleeve for fixing the cover sheet is installed at the top of the sampling barrel, the sample storage tube comprises a tube body and end caps sleeved on both ends of the tube body, the outer diameter of the tube body matches the inner diameter of the sampling barrel, a cylindrical slider is slidably installed in the sampling barrel, two spring locking pins arranged inversely are installed on the cylindrical slider, and a reserved groove corresponding to the spring locking pin is opened on the sampling barrel.

[0006] On the basis of the above technical solution, the present invention also makes the following improvements:

[0007] Further, the pipe body includes two relatively arranged semi - pipes. Outer card slots and inner card slots which match each other are respectively opened on both sides of the semi - pipes. A plurality of connecting convex columns are provided on the outer card slots, and connecting holes which match the connecting convex columns are opened on the inner card slots. The two semi - pipes are convenient to disassemble and connect, facilitating the complete extraction of the soil sample in the pipe body for experimental use.

[0008] Further, a first threaded post is provided at the top end of the extension rod, a threaded hole is opened at the bottom end of the extension rod, a connecting post is provided at the top end of the sampling cylinder, and a second threaded post is provided at the top end of the connecting post. Both the first threaded post and the second threaded post match the threaded hole. The number of extension rods can be increased, enabling the soil sampling device to meet the usage requirements of various environments, which is beneficial to expanding the applicable range.

[0009] Further, an external thread is provided on the outer wall of the connecting post, the sleeve is screwed onto the connecting post, and anti - slip lines are opened on the sleeve. It is convenient to rotate the sleeve, and the sleeve will not move by itself. Using the sleeve can better fix the cover plate.

[0010] Further, the spring lock pin includes a pin post and a spring which are fixedly connected. A blind hole is opened on the cylindrical slider. The pin post and the spring are both located in the blind hole, and one end of the spring is fixedly connected to the cylindrical slider. A rubber sheet is provided at the end of the pin post. Under the action of the spring, the rubber sheet presses against the inner wall of the cover plate, preventing the cylindrical slider from moving freely in the sampling cylinder when the sampling cylinder is empty.

[0011] Further, the soil sampling device further includes an auxiliary rod, and a nut which matches the first threaded post is provided on the auxiliary rod. When sampling in soft geological areas where a soil sampling drill is not required, the auxiliary rod can be installed on the extension rod, and the sampling cylinder is driven by the auxiliary rod to drill into the soil for sampling. There is no need to carry a soil sampling drill, which is beneficial to reducing the burden.

[0012] Advantages of the present utility model:

[0013] After sampling, when the end cover at one end of the sample storage tube is removed and the pipe body is inserted into the sampling cylinder, the soil sample can be transferred into the pipe body. Then, when the cover plate is removed and the pipe body is exposed, the pipe body can be taken out to obtain the soil sample. At the same time, by pulling the cylindrical slider, the inside of the sampling cylinder can also be cleaned. It is convenient to obtain the soil sample in the sampling cylinder, and the obtained sample can be stored and transported in the pipe body without damaging the sample. Description of the drawings

[0014] The present utility model can be further illustrated by the non - restrictive embodiments given in the drawings;

[0015] Figure 1 It is a schematic structural diagram of a soil sampling device in an embodiment of the present utility model;

[0016] Figure 2This is a schematic diagram of the structure of the extension rod in the embodiment of the utility model;

[0017] Figure 3 This is a schematic diagram of the disassembly structure of the sampler in the embodiment of the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the sampler after the cover sheet is removed in the embodiment of the utility model;

[0019] Figure 5 It is a schematic diagram of the longitudinal section structure of the sampler in the embodiment of the utility model;

[0020] Figure 6 for Figure 5 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 7 This is a schematic diagram of the structure of the sample storage tube in the embodiment of the utility model;

[0022] Figure 8 This is a schematic diagram of the structure of the tube body in the embodiment of the utility model;

[0023] Figure 9 for Figure 8 A schematic diagram of the enlarged structure at B in the middle;

[0024] The main component symbols are described as follows:

[0025] Extension rod 1, first threaded column 11, threaded hole 12, auxiliary rod 21, nut 22, sampler 3, sampling tube 31, breaking teeth 32, connecting column 33, second threaded column 331, external thread 332, stepped opening 34, bayonet 341, reserved groove 342, cover plate 35, block 351, sleeve 36, cylindrical slider 37, blind hole 371, pin 38, spring 381, rubber sheet 382, sample storage tube 4, half tube 41, external slot 411, internal slot 412, connecting boss 413, connecting hole 414. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0027] like Figures 1 to 4As shown, a soil sampling device comprises an extension rod 1 which can be connected to a soil sampling drill, a sampler 3 is connected to the extension rod 1, the sampler 3 comprises a sampling tube 31 and a plurality of sample storage tubes 4, a soil breaking tooth 32 is arranged at the bottom of the sampling tube 31, the sampling tube 31 is provided with two oppositely arranged stepped openings 34, a bayonet 341 which is connected to the stepped openings 34 is arranged on the inner wall of the sampling tube 31, a cover sheet 35 is embedded in the stepped openings 34, the cover sheet 35 matches the stepped openings 34, and the cover sheet 35 is provided on the inner wall of the sampling tube 31. A block 351 matching the bayonet 341 is provided at the bottom end of the sheet 35, a sleeve 36 for fixing the cover sheet 35 is installed at the top end of the sampling barrel 31, the sample storage tube 4 includes a tube body and end covers 42 sleeved on both ends of the tube body, the outer diameter of the tube body matches the inner diameter of the sampling barrel 31, a cylindrical slider 37 is slidably installed in the sampling barrel 31, two spring lock pins arranged inversely are installed on the cylindrical slider 37, and a reserved groove 342 corresponding to the spring lock pin is opened on the sampling barrel 31.

[0028] like Figures 7 to 9 As shown, the tube body includes two oppositely arranged half tubes 41, and the two sides of the half tube 41 are respectively provided with matching outer slots 411 and inner slots 412, the outer slots 411 are provided with a plurality of connecting bosses 413, and the inner slots 412 are provided with connecting holes 414 matching the connecting bosses 413. The two half tubes 41 are easy to disassemble and connect, so that the soil sample in the tube body can be completely taken out for experimental use.

[0029] like Figure 2 As shown, the top of the extension rod 1 is provided with a first threaded column 11, the bottom of the extension rod 1 is provided with a threaded hole 12, the top of the sampling tube 31 is provided with a connecting column 33, the top of the connecting column 33 is provided with a second threaded column 331, and the first threaded column 11 and the second threaded column 331 are matched with the threaded hole 12. The number of extension rods 1 can be increased, so that the soil sampling device can meet the use requirements of various environments, which is conducive to improving the scope of application.

[0030] like Figure 5 As shown, the outer wall of the connecting column 33 is provided with an external thread 332, and the sleeve 36 is screwed on the connecting column 33, and the sleeve 36 is provided with anti-slip grooves. It is convenient to rotate the sleeve 36, and the sleeve 36 will not move by itself. The use of the sleeve 36 can better fix the cover sheet 35.

[0031] like Figure 5 , Figure 6 As shown, the spring lock pin includes a pin 38 and a spring 381 that are fixedly connected. A blind hole 371 is provided on the cylindrical slider 37. The pin 38 and the spring 381 are both located in the blind hole 371, and one end of the spring 381 is fixedly connected to the cylindrical slider 37. A rubber sheet 382 is provided at the end of the pin 38. Under the action of the spring 381, the rubber sheet 382 is pressed against the inner wall of the cover sheet 35 to prevent the cylindrical slider 37 from moving in the sampling tube 31 when the sampling tube 31 is empty.

[0032] As Figure 1 shown, the soil sampling device further includes an auxiliary rod 21, and a nut 22 matching the first threaded column 11 is provided on the auxiliary rod 21. When sampling at a soft geological location where the soil sampling drill is not required, the auxiliary rod 21 can be installed on the extension rod 1, and the sampling cylinder 31 is driven by the auxiliary rod 21 to drill into the soil for sampling. There is no need to carry the soil sampling drill, which helps to reduce the burden.

[0033] During use, the sampling cylinder 31 is drilled into the soil through the soil sampling drill or the auxiliary rod 21, and the soil automatically enters the sampling cylinder 31. Then, the sampling cylinder 31 is taken out from underground. Then, an empty sample storage tube 4 is taken out and the end cap 42 at one end is removed. Then, the end of the tube body where the end cap 42 is removed is inserted into the sampling cylinder 31, and the soil in the sampling cylinder 31 can be introduced into the tube body. Then, the sleeve 36 is rotated to move upward to release the cover plate 35. After the cover plate 35 is removed, the pin 38 pops out under the action of the spring 381. By pulling the cylindrical slider 37 with the pin 38, the tube body can be pushed out and at the same time, the inner wall of the sampling cylinder 31 can be cleaned for reuse. After the cover plate 35 is removed, the tube body is pulled out to take out the soil sample and the end cap 42 is reinstalled to temporarily seal the soil sample for easy transportation. Finally, the cylindrical slider 37, the cover plate 35 and the sleeve 36 are reset to sample again. In cooperation with other empty sample storage tubes 4, multiple samplings and sample preservation can be carried out. Labels can be pasted on the outer wall of the sample storage tube 4 to distinguish each sample.

[0034] The above has introduced in detail a soil sampling device provided by the present utility model. The description of the specific embodiments is only used to help understand the method and its core idea of the present utility model. It should be noted that for those of ordinary skill in the art in this technical field, without departing from the principle of the present utility model, several improvements and modifications can still be made to the present utility model, and these improvements and modifications also fall within the protection scope of the claims of the present utility model.

Claims

1. A soil sampling device, comprising an extension rod (1) capable of being connected to a soil sampling drill, and a sampler (3) is connected to the extension rod (1), characterized in that: The sampler (3) includes a sampling cylinder (31) and a number of sample storage tubes (4). The bottom end of the sampling cylinder (31) is provided with soil-breaking teeth (32). The sampling cylinder (31) is provided with two oppositely arranged stepped openings (34). The inner wall of the sampling cylinder (31) is provided with a bayonet (341) communicating with the stepped opening (34). A cover plate (35) is embedded in the stepped opening (34), and the cover plate (35) matches the stepped opening (34). The bottom end of the cover plate (35) is provided with a latch (351) matching the bayonet (341). The top end of the sampling cylinder (31) is installed with a sleeve (36) for fixing the cover plate (35). The sample storage tube (4) includes a tube body and end caps (42) sleeved at both ends of the tube body. The outer diameter of the tube body matches the inner diameter of the sampling cylinder (31). A cylindrical slider (37) is slidably installed in the sampling cylinder (31). Two spring pins arranged in opposite directions are installed on the cylindrical slider (37). The sampling cylinder (31) is provided with a reserved groove (342) corresponding to the spring pins.

2. The soil sampling device according to claim 1, wherein: The tube body includes two oppositely arranged half-tubes (41). Outer clamping grooves (411) and inner clamping grooves (412) are respectively opened on both sides of the half-tube (41). A plurality of connecting convex columns (413) are provided on the outer clamping groove (411), and connecting holes (414) matching the connecting convex columns (413) are opened on the inner clamping groove (412).

3. The soil sampling device according to claim 1, wherein: The top end of the extension rod (1) is provided with a first threaded post (11), and the bottom end of the extension rod (1) is provided with a threaded hole (12). The top end of the sampling cylinder (31) is provided with a connecting post (33), and the top end of the connecting post (33) is provided with a second threaded post (331). The first threaded post (11) and the second threaded post (331) both match the threaded hole (12).

4. The soil sampling device according to claim 3, wherein: The outer wall of the connecting post (33) is provided with an external thread (332). The sleeve (36) is screwed onto the connecting post (33), and anti-slip lines are opened on the sleeve (36).

5. The soil sampling device according to claim 1, wherein: The spring pin includes a pin post (38) and a spring (381) fixedly connected. A blind hole (371) is opened on the cylindrical slider (37). The pin post (38) and the spring (381) are both located in the blind hole (371), and one end of the spring (381) is fixedly connected to the cylindrical slider (37). A rubber sheet (382) is provided at the end of the pin post (38).

6. The soil sampling device according to claim 1, wherein: The soil sampling device further includes an auxiliary rod (21), and a nut (22) matching the first threaded post (11) is provided on the auxiliary rod (21).

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