Geological stratified sampling device

Abstract

The utility model relates to the technical field of geological sampling, and discloses a geological stratified sampling device which comprises a drilling mechanism and a sampling mechanism, the drilling mechanism comprises a motor, the output end of the motor faces downwards and is connected with a rotating rod, and the lower end of the rotating rod is connected with a spiral drilling rod; the sampling mechanism comprises a vertical rod, the lower end of the vertical rod is connected with a sampling barrel, a plurality of through grooves are evenly formed in the side wall of the front side of the sampling barrel in the vertical direction, and a second vertical rod rotates on the inner wall of the side, close to the through grooves, of the inner wall of the upper portion of the sampling barrel; sampling plates which correspond to the through grooves and can extend out of the through grooves are fixedly arranged on the side walls of the two vertical rods, and the cross section of each sampling plate is of a [-shaped structure. Compared with the prior art, the sampling device has the advantages that layered sampling can be realized, extrusion is avoided, and falling during sampling is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of geological sampling, in particular to a geological layer sampling device. Background Art

[0002] Geology mainly studies the earth and its origin and evolution, including earthquake prediction, search and exploration of various minerals, disastrous landslides, evolution of paleontology, etc. Geological exploration is an investigation and research activity that uses various means and methods to prospect and detect the geology, determine a suitable bearing stratum, determine the foundation type according to the foundation bearing capacity of the bearing stratum, and calculate the foundation parameters.

[0003] During the geological exploration process, it is necessary to sample the geology. Existing geological sampling equipment generally includes a drill pipe and a sampling cylinder. The sampling cylinder is installed at the bottom of the drill pipe, and then the drill pipe is extracted to take out the sample. Therefore, the sampling device has the following deficiencies:

[0004] 1. It cannot sample different depths of soil in layers and can only sample once;

[0005] 2. When sampling, the soil is squeezed and piled up in the sampling cylinder, and the upper and lower soil samples are mixed with each other, resulting in poor accuracy of the test results for analyzing the soil environment of different layers in the later stage;

[0006] 3. When extracting, the soil is easy to fall off, easily causing sampling failure. Content of the Utility Model

[0007] I. Technical Problems to be Solved

[0008] The technical problems to be solved by the utility model are that it cannot sample in layers, the sample extrusion and accumulation affect the detection accuracy, and the soil is easy to fall off when extracting the sampling cylinder, resulting in sampling failure.

[0009] II. Technical Solution

[0010] To solve the above technical problems, the technical solution provided by the utility model is: a geological layer sampling device, including a drilling mechanism and a sampling mechanism,

[0011] The drilling mechanism includes a motor, the output end of the motor faces downward and is connected with a rotating rod, and the lower end of the rotating rod is connected with a spiral drill rod;

[0012] The sampling mechanism includes a vertical rod, the lower end of the vertical rod is connected with a sampling cylinder, a plurality of through grooves are uniformly arranged on the front side wall of the sampling cylinder along the vertical direction, a vertical rod two is rotatably arranged on the inner wall of the upper part of the sampling cylinder close to one side of the through groove, sampling plates respectively corresponding to the through grooves and capable of extending out of the through grooves are fixedly arranged on the side wall of the vertical rod two, and the cross section of the sampling plate is a C-shaped structure.

[0013] As an improvement, a T-shaped grip is connected to the upper end of the motor.

[0014] As an improvement, the lower end of the sampling cylinder has no cover, and the diameter of the outer side wall is equal to the diameter of the outer side wall of the auger drill rod.

[0015] As an improvement, a limiting mechanism is provided outside the ground drilling mechanism. The limiting mechanism includes a horizontal plate. A through hole matching the rotating rod is provided above the horizontal plate. The diameter of the vertical rod is equal to the diameter of the through hole. Plug rods are respectively provided at the corners of the lower surface of the horizontal plate.

[0016] As an improvement, the length of the plug rod is greater than the length of the auger drill rod.

[0017] As an improvement, the upper end of the vertical rod extends out of the sampling cylinder and is connected to a Z-shaped rotating rod two. The rotating rod two is located outside the horizontal plate, and the sum of its length and the length of the sampling cylinder is greater than the length of the plug rod.

[0018] As an improvement, the cross-section of the sampling plate is composed of two outwardly convex arc curves connected to each other. The radian of one side arc curve is smaller than the radian of the sampling cylinder, and the radian of the other side is larger than the radian of the sampling cylinder.

[0019] III. Beneficial effects

[0020] The advantages of the present utility model compared with the prior art are as follows:

[0021] 1. First, the ground drilling mechanism is inserted into the soil to drill a through hole, and then the sampling mechanism is inserted into the through hole. The inner wall of the soil is sampled through the sampling plate, avoiding extrusion and making the later measurement results more accurate;

[0022] 2. A plurality of sampling plates are provided on the sampling mechanism, which can sample in layers, enabling multiple samples to be taken at one time and making sampling more convenient;

[0023] 3. The sampling plate of the sampling mechanism is of a U-shaped structure, so that the sampled soil is located within the U-shaped structure, which can prevent the soil from falling out during sampling. Description of the drawings

[0024] Figure 1 is a schematic structural diagram of the use state of the ground drilling mechanism of a geological layer sampling device of the present utility model.

[0025] Figure 2 is a schematic structural diagram of the use state of the sampling mechanism of a geological layer sampling device of the present utility model.

[0026] Figure 3 is a partial internal structural schematic diagram of the sampling mechanism of a geological layer sampling device of the present utility model.

[0027] Figure 4It is a schematic internal structure diagram of a sampling plate of a geological stratification sampling device of the present utility model.

[0028] As shown in the figure: 1. Earth drilling mechanism; 2. Sampling mechanism; 3. Limiting mechanism; 4. Motor; 5. Rotating rod; 6. Helical drill rod; 7. Horizontal plate; 8. Through hole; 9. Insert rod; 10. Vertical rod; 11. Sampling cylinder; 12. Through groove; 13. Second vertical rod; 14. Sampling plate; 15. Handle; 16. Second rotating rod. Specific implementation mode

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection scope of the present utility model.

[0030] Embodiment 1

[0031] As shown in the attached Figure 1 and attached Figure 2 As shown, a geological stratification sampling device includes an earth drilling mechanism 1 and a sampling mechanism 2. The earth drilling mechanism 1 includes a motor 4. The output end of the motor 4 faces downward and is connected to a rotating rod 5. The lower end of the rotating rod 5 is connected to a helical drill rod 6; the sampling mechanism 2 includes a vertical rod 10. The lower end of the vertical rod 10 is connected to a sampling cylinder 11. A plurality of through grooves 12 are uniformly arranged along the vertical direction on the front side wall of the sampling cylinder 11. A second vertical rod 13 is rotatably arranged on the inner wall of the upper part of the sampling cylinder 11 near one side of the through groove 12. A sampling plate 14 corresponding to the through groove 12 and capable of extending out of the through groove 12 is fixedly arranged on the side wall of the second vertical rod 13. The cross section of the sampling plate 14 is a U-shaped structure.

[0032] Through the above structure, the earth drilling mechanism 1 can be inserted into the soil first to drill a through hole, and then the sampling mechanism 2 can be inserted into the through hole. The sampling plate 14 is used to sample the inner wall of the soil, and sampling can be carried out in layers, so that multiple samples can be taken at one time, and extrusion is avoided, making the later measurement results more accurate.

[0033] A limiting mechanism 3 is arranged outside the earth drilling mechanism 1. The limiting mechanism 3 includes a horizontal plate 7. A through hole 8 for cooperating with the rotating rod 5 is arranged above the horizontal plate 7. The diameter of the vertical rod 10 is equal to the diameter of the through hole 8. Insert rods 9 are respectively arranged at the corners of the lower surface of the horizontal plate 7; the length of the insert rod 9 is greater than the length of the helical drill rod 6; the upper end of the second vertical rod 13 extends out of the sampling cylinder 11 and is connected to a Z-shaped second rotating rod 16. The second rotating rod 16 is located outside the horizontal plate 7, and the sum of the lengths of the second rotating rod 16 and the sampling cylinder 11 is greater than the length of the insert rod 9.

[0034] Through the above structure, the limiting mechanism 3 can limit the direction of the drilling mechanism 1 and the sampling mechanism 2 when they are inserted into the soil, and the rotating rod 16 can control the rotation of the vertical rod 13, that is, the sampling plate 14 is rotated to extend out of the through groove 12 to dig out the soil on the inner wall of the soil to achieve sampling.

[0035] Embodiment 2

[0036] Based on Example 1, please refer to the attached Figure 3 and attached Figure 4

[0037] The upper end of the motor 4 is connected with a T-shaped handle 15 .

[0038] Through the above structure, the user can hold the handle 15 to adjust the position of the ground drilling mechanism 1, which is more convenient to use.

[0039] The lower end of the sampling tube 11 has no cover, and the diameter of the outer wall is equal to the diameter of the outer wall of the auger rod 6.

[0040] Through the above structure, the sampling tube 11 is just inserted into the through hole drilled by the spiral drill rod 6, and the excess soil is shoveled away.

[0041] The cross section of the sampling plate 14 is formed by connecting two arc curves convex outwards, the curvature of the arc curve on one side is smaller than the curvature of the sampling tube 11 , and the curvature of the arc curve on the other side is larger than the curvature of the sampling tube 11 .

[0042] Through the above structure, the sampling plate 14 can be located in the sampling tube 11 when not in use, and can be extended out of the sampling tube 11 for sampling when in use.

[0043] It is worth noting that the supporting power supply and control switch of the motor 4 mentioned in this embodiment can also be provided by the manufacturer. The circuits, electronic components and modules involved are all existing technologies and can be fully implemented by those skilled in the art without further elaboration.

[0044] The specific method of use is as follows: pass the rotating rod 5 of the drilling mechanism 1 through the through hole 8 on the horizontal plate 7 from below, and fix the limiting mechanism 3 above the geology to be sampled by plugging the plug rod 9, hold the handle 15 to start the motor 4, the spiral drill rod 6 rotates, and the user presses down the drilling mechanism 1 to drill the ground, takes out the drilling mechanism 1, and similarly passes the vertical rod 10 of the sampling mechanism 2 through the through hole 8 from below, and manually inserts the sampling tube 11 into the through hole drilled by the spiral drill rod 6. After moving the sampling tube 11 to the depth required for sampling, rotate the rotating rod 16 to rotate the vertical rod 13, and the sampling plate 14 extends from the through groove 12 to dig out the soil on the inner wall of the soil to achieve sampling. Sampling can be performed in layers to avoid soil squeezing, making subsequent geological detection more accurate, and pulling out the sampling mechanism 2 upwards can smoothly bring out the sampled sample to avoid sampling failure.

[0045] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0047] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A geological stratification sampling device, comprising a ground drilling mechanism (1) and a sampling mechanism (2), characterized in that: The ground drilling mechanism (1) includes a motor (4), the output end of the motor (4) faces downward and is connected to a rotating rod (5), and the lower end of the rotating rod (5) is connected to a screw drill rod (6); The sampling mechanism (2) includes a vertical rod (10), the lower end of the vertical rod (10) is connected to a sampling cylinder (11), a plurality of through grooves (12) are uniformly arranged on the front side wall of the sampling cylinder (11) along the vertical direction, and a second vertical rod (13) is rotatably arranged on the inner wall of the sampling cylinder (11) above the through grooves (12) close to one side of the through grooves (12). A sampling plate (14) corresponding to the through grooves (12) and capable of extending out of the through grooves (12) is fixedly arranged on the side wall of the second vertical rod (13), and the cross section of the sampling plate (14) is a C-shaped structure.

2. A geological stratification sampling device according to claim 1, characterized in that: The upper end of the motor (4) is connected to a T-shaped handle (15).

3. A geological stratification sampling device according to claim 1, characterized in that: The lower end of the sampling cylinder (11) has no cover, and the diameter of the outer side wall is equal to the diameter of the outer side wall of the screw drill rod (6).

4. A geological stratification sampling device according to claim 1, characterized in that: A limiting mechanism (3) is arranged outside the ground drilling mechanism (1), and the limiting mechanism (3) includes a horizontal plate (7). A through hole (8) matching with the rotating rod (5) is arranged above the horizontal plate (7), the diameter of the vertical rod (10) is equal to the diameter of the through hole (8), and inserting rods (9) are respectively arranged at the corners of the lower surface of the horizontal plate (7).

5. A geological stratification sampling device according to claim 4, characterized in that: The length of the inserting rod (9) is greater than the length of the screw drill rod (6).

6. A geological layer sampling device according to claim 4, characterized in that: The upper end of the second vertical rod (13) extends out of the sampling cylinder (11) and is connected to a Z-shaped second rotating rod (16). The second rotating rod (16) is located outside the horizontal plate (7), and the sum of the lengths of the second rotating rod (16) and the sampling cylinder (11) is greater than the length of the inserting rod (9).

7. A geological stratification sampling device according to claim 1, characterized in that: The cross section of the sampling plate (14) is composed of two outwardly convex arc curves connected. The radian of one side arc curve is smaller than the radian of the sampling cylinder (11), and the radian of the other side is larger than the radian of the sampling cylinder (11).

Images