Deep soil sampling device for geotechnical engineering

Abstract

The utility model discloses a deep soil sampling device for geotechnical engineering, which comprises an H-shaped base and a limit pillar fixedly arranged on the H-shaped base, guide rails are fixedly arranged on two sides of the limit pillar, a sampling sliding table is slidably arranged between the two guide rails, a support table is fixedly arranged on the sampling sliding table, and a gasoline engine is fixedly mounted on the support table. The utility model discloses a deep soil sampling device for geotechnical engineering, which is characterized in that a base and a limiting column structure are additionally arranged on the basis of a traditional drilling sampler, a gasoline engine is arranged on the base, a coupling is fixedly arranged at the output end of the gasoline engine, and a plurality of drill rod components for sampling deep soil of geotechnical engineering are arranged at the bottom end of the coupling. According to the sampling device, the sampling drilling machine can be limited and supported in an auxiliary mode in the sampling process, meanwhile, an anti-deviation assembly is additionally arranged at the drilling position, the problem that the sampling device inclines and deviates in the drilling and sampling process can be effectively solved, the working difficulty of sampling operation can be reduced, and sampling operation is stable and reliable.

Description

Technical Field

[0001] The utility model relates to the technical field of rock and soil exploration sampling, in particular to a deep soil sampling device for rock and soil engineering. Background Art

[0002] Geotechnical engineering is an engineering project that aims to solve rock and soil engineering problems, including foundations, slopes and underground engineering. In the process of geotechnical engineering research, rock and soil are frequently sampled to analyze the composition, looseness and pollution degree of the rock and soil. The commonly used portable geotechnical sampling device is mainly composed of a gasoline engine, a drill rod, a sampling tube and a handle. When sampling, the sampler holds the handle so that the sampling tube is facing the rock and soil, starts the gasoline engine, and presses the handle while the drill rod is drilling, so as to realize the sampling operation of deep soil; such as a portable field sampling device for geotechnical engineering survey with application number 202121011178.8, including a gasoline engine, a coupling is fixedly installed at the bottom of the gasoline engine, a fixed seat is fixedly installed on the outside of the coupling, a connecting shaft extending to the outside of the fixed seat is fixedly connected to the bottom of the coupling, a connecting piece is fixedly installed at the bottom of the connecting shaft, and a long cylinder is fixedly installed on the outside of the connecting piece. The above common types of portable soil sampling devices have the following deficiencies in practical applications:

[0003] Since rock and soil are usually hard, during the process of drilling and sampling deep soil, the drill rod is easily deviated by the vibration of the gasoline engine, causing the sampling tube at the bottom to deviate from the predetermined sampling position, which can easily cause deviations. At the same time, hand-held sampling is difficult to operate and poses certain safety hazards. Utility Model Content

[0004] The utility model aims to provide a deep soil sampling device for geotechnical engineering, so as to solve the problems that the existing geotechnical sampling device proposed in the above background technology is difficult to sample and has potential safety hazards during use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a deep soil sampling device for geotechnical engineering, comprising an H-shaped base and a limiting pillar fixedly arranged on the H-shaped base, guide rails are fixedly arranged on both sides of the limiting pillar, a sampling slide is slidably arranged between the two guide rails, a support platform is fixedly arranged on the sampling slide, a gasoline engine is fixedly installed on the support platform, a coupling is fixedly installed on the output end of the gasoline engine, a plurality of drill rod assemblies for deep soil sampling of geotechnical engineering are installed at the bottom end of the coupling, a sampling assembly is installed at the bottom end of the drill rod assembly, and anti-deflection assemblies for preventing the drill rod from tilting are provided on both sides of the H-shaped base.

[0006] Preferably, the drill rod assembly includes a sampling drill rod and a hexagonal insert sleeve opened at the top of the sampling drill rod, the front side of the hexagonal insert sleeve is threadedly connected with a locking pin, the bottom end of the sampling drill rod is fixedly provided with a hexagonal column, the hexagonal column is provided with a pin hole, and the locking pin matches the pin hole.

[0007] Preferably, a scale line is fixedly provided on the front of the sampling drill rod, and the length of the sampling drill rod is set to 30 cm, so that the sampler can flexibly control the drilling depth.

[0008] Preferably, the sampling assembly includes a sampling drill barrel and an assembly groove opened at the top of the sampling drill barrel, the assembly groove matches the hexagonal plug column, the bottom end of the sampling drill barrel is fixed with an annular tooth cutter by screws, and soil-moving strips are opened on both sides of the sampling drill barrel, which facilitates drilling and makes drilling efficient.

[0009] Preferably, the anti-deviation assembly includes a drill rod limit arm and a limit arc support fixedly arranged at one end of the drill rod limit arm, a socket plate is fixedly arranged at the bottom end of the limit arc support, and evenly distributed adjustment holes are opened on the surface of the drill rod limit arm, and assembly nails are threadedly connected to the adjustment holes; the position of the limit arc support can be flexibly adjusted, so as to limit the drill rod along the drilling position to prevent the drilling from deviating.

[0010] Preferably, handrails are fixedly provided on both sides of the support platform, so that the sampler can carry out hand-held sampling easily, and the operation is simple, safe and stable.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The deep soil sampling device for geotechnical engineering is equipped with a base and a limit column structure on the basis of the traditional drilling sampler, which can limit and assist in supporting the sampling drill during the sampling process. At the same time, an anti-deviation component is added to the drilling hole, which can effectively reduce the problem of tilt and deviation of the sampling device during the drilling sampling process, which is conducive to reducing the difficulty of the sampling operation, and the sampling operation is stable and reliable, and the sampling is more accurate.

[0013] The drill rods can be assembled flexibly. Each drill rod has a fixed length and is equipped with specific scale lines. During deep soil sampling, it is convenient for samplers to accurately control the sampling depth. It has good applicability. The sampling device can be quickly disassembled and assembled, which is convenient for samplers to carry flexibly. It has the characteristics of easy operation, accurate sampling, safety, stability, and flexible portability. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the soil sampling device of the utility model;

[0015] Figure 2This is a front cross-sectional view of the sampling drill rod of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the H-shaped base of the utility model;

[0017] Figure 4 It is a structural schematic diagram of the sampling drill tube of the utility model.

[0018] In the figure: 1. H-shaped base; 2. Limiting pillar; 3. Sampling drill tube; 4. Guide rail; 5. Sampling slide; 6. Support table; 7. Handrail; 8. Gasoline engine; 9. Coupling; 10. Sampling drill rod; 11. Drill rod limiting arm; 12. Hexagonal insert; 13. Locking pin; 14. Hexagonal insert; 15. Pin hole; 16. Assembly groove; 17. Annular tooth cutter; 18. Limiting arc support; 19. Socket plate; 20. Assembly pin; 21. Adjustment hole; 22. Soil-moving strip; 23. Scale line. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] See also Figure 1-4 The utility model provides a deep soil sampling device for geotechnical engineering, comprising an H-shaped base 1 and a limiting pillar 2 fixedly arranged on the H-shaped base 1, guide rails 4 are fixedly arranged on both sides of the limiting pillar 2, a sampling slide 5 is slidably arranged between the two guide rails 4, a supporting platform 6 is fixedly arranged on the sampling slide 5, a gasoline engine 8 is fixedly installed on the supporting platform 6, a coupling 9 is fixedly installed on the output end of the gasoline engine 8, a plurality of drill rod assemblies for deep soil sampling of geotechnical engineering are installed at the bottom end of the coupling 9, a sampling assembly is installed at the bottom end of the drill rod assembly, anti-deflection assemblies for preventing the drill rod from tilting are arranged on both sides of the H-shaped base 1, and handrails 7 are fixedly arranged on both sides of the support platform 6.

[0021] See also Figure 1 and Figure 2 Further, the drill rod assembly includes a sampling drill rod 10 and a hexagonal insert 12 opened at the top of the sampling drill rod 10, the front of the hexagonal insert 12 is threadedly connected with a locking pin 13, the bottom of the sampling drill rod 10 is fixedly provided with a hexagonal plug column 14, the hexagonal plug column 14 is provided with a pin hole 15, the locking pin 13 matches the pin hole 15, the front of the sampling drill rod 10 is fixedly provided with a scale line 23, and the length of the sampling drill rod 10 is set to 30 cm;

[0022] When in use, when assembling adjacent sampling drill rods 10, the hexagonal insert 12 of the lower sampling drill rod 10 is inserted into the hexagonal insert column 14. After the insertion is tightened, the locking pin 13 is screwed and stuck in the pin hole 15. At this time, the sampling drill rod 10 is assembled.

[0023] See also Figure 1 , Figure 2 and Figure 4 Further, the sampling assembly includes a sampling drill tube 3 and an assembly groove 16 provided at the top of the sampling drill tube 3, the assembly groove 16 matches the hexagonal plug 14, the bottom end of the sampling drill tube 3 is fixed with an annular tooth cutter 17 by screws, and soil strips 22 are provided on both sides of the sampling drill tube 3;

[0024] When in use, during the rotation process, the annular tooth cutter 17 will penetrate into the rock and soil under the rotational friction, and intercept the rock and soil column in the sampling drill tube 3, which is convenient for rock and soil sampling. When taking the sample column, use the lever to insert the lever into the soil-moving bar 22, and press down along the soil-moving bar 22 to squeeze out the rock and soil column sample, and the sampling is stable.

[0025] See also Figure 1 and Figure 3 Further, the anti-deviation assembly includes a drill rod limit arm 11 and a limit arc support 18 fixedly arranged at one end of the drill rod limit arm 11, a jack plate 19 is fixedly arranged at the bottom end of the limit arc support 18, and the surface of the drill rod limit arm 11 is provided with evenly distributed adjustment holes 21, and the adjustment holes 21 are threadedly connected with assembly nails 20;

[0026] When in use, first loosen the assembly nail 20, slide the two drill rod limiting arms 11, place the socket plate 19 on the edge of the expanded hole, tighten the assembly nail 20, limit the sampling drill rod 10 through the limiting arc support 18 to prevent the drilling hole from deviating, and limit the drilling arm through the socket plate 19 to prevent the hole edge from collapsing. The sampling is stable and the difficulty is small.

[0027] When the embodiment of the present application is in use: the H-shaped base 1 is placed stably, the hand support 7 is first held, and the gasoline engine 8 is started. The gasoline engine 8 drives the sampling drill rod 10 to rotate through the coupling 9, and then drives the sampling drill barrel 3 at the bottom to rotate, and slowly presses down. First, a shallow reaming hole is drilled at the sampling position, and then the assembly nail 20 is loosened, the two drill rod limiting arms 11 are slid, and the socket plate 19 is placed on the edge of the reaming hole, and the assembly nail 20 is tightened. The sampling drill rod 10 is limited by the limiting arc support 18 to prevent the drilling hole from deviating, and the drilling arm is limited by the socket plate 19 to prevent the hole edge from collapsing. First, hold the hand support 7, start the gasoline engine 8, and slowly press down along the limiting pillar 2 to drill. After drilling for a period of time, lift the sampling drill barrel 3 to discharge the rock and soil in the sampling drill barrel 3, according to the depth of the drilling sampling, until the appropriate number of sampling drill rods 10 are assembled. After reaching the sampling depth, take out the sampling drill barrel 3 and take out the rock and soil samples in the drill barrel.

[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A deep soil sampling device for geotechnical engineering, comprising an H-shaped base (1) and a limiting support (2) fixedly arranged on the H-shaped base (1), characterized in that: Guide rails (4) are fixedly arranged on both sides of the limiting pillar (2); a sampling slide (5) is slidably arranged between the two guide rails (4); a support platform (6) is fixedly arranged on the sampling slide (5); a gasoline engine (8) is fixedly installed on the support platform (6); a coupling (9) is fixedly installed at the output end of the gasoline engine (8); a plurality of drill rod assemblies for deep soil sampling of rock and soil are installed at the bottom end of the coupling (9); a sampling assembly is installed at the bottom end of the drill rod assembly; and anti-deflection assemblies for preventing the drill rod from tilting are provided on both sides of the H-shaped base (1).

2. A deep soil sampling device for geotechnical engineering according to claim 1, characterized in that: The drill rod assembly comprises a sampling drill rod (10) and a hexagonal insert (12) provided at the top end of the sampling drill rod (10); a locking pin (13) is threadedly connected to the front of the hexagonal insert (12); a hexagonal insert column (14) is fixedly provided at the bottom end of the sampling drill rod (10); a pin hole (15) is provided on the hexagonal insert column (14); and the locking pin (13) matches the pin hole (15).

3. A deep soil sampling device for geotechnical engineering according to claim 2, characterized in that: A scale mark (23) is fixedly arranged on the front side of the sampling drill rod (10), and the length of the sampling drill rod (10) is set to 30 cm.

4. A deep soil sampling device for geotechnical engineering according to claim 2, characterized in that: The sampling assembly comprises a sampling drill tube (3) and an assembly groove (16) provided at the top of the sampling drill tube (3), wherein the assembly groove (16) matches the hexagonal plug column (14), an annular tooth cutter (17) is fixed at the bottom end of the sampling drill tube (3) by means of screws, and soil-moving strips (22) are provided on both sides of the sampling drill tube (3).

5. The deep soil sampling device for geotechnical engineering according to claim 1, characterized in that: The anti-deviation assembly comprises a drill rod limit arm (11) and a limit arc support (18) fixedly arranged at one end of the drill rod limit arm (11); a socket plate (19) is fixedly arranged at the bottom end of the limit arc support (18); the surface of the drill rod limit arm (11) is provided with evenly distributed adjustment holes (21); and the adjustment holes (21) are threadedly connected with assembly nails (20).

6. A deep soil sampling device for geotechnical engineering according to claim 1, characterized in that: Handrails (7) are fixedly arranged on both sides of the support platform (6).

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