A sampling device

Abstract

The utility model discloses a sampling device, comprising a movable base, a sampling assembly is arranged at the bottom of the drilling assembly, the sampling assembly comprises a protective tube, a mounting groove is arranged inside the assembly block, the movable end of the hydraulic rod is fixedly connected with the sampling tube, one end of the sampling tube is fixedly connected with a circular cutting block, and the inner wall of the sampling tube is fixedly connected with a circular extrusion block. The utility model relates to the technical field of geotechnical engineering; the sampling tube is pushed out from the mounting groove by starting the hydraulic rod, one side edge of the circular cutting block is relatively sharp and can be easily inserted into the rock and soil, when the rock and soil are squeezed into the sampling tube, they will encounter the circular extrusion block, at which time the diameter of the rock and soil sample will be forcibly squeezed to become smaller, when the rock and soil sample passes through the circular extrusion block, it will not be restricted by the extrusion, it will be broken and scattered to one side of the circular extrusion block, so as to retain a sufficient sample volume, and prevent the rock and soil sample from being effectively taken out when the hydraulic rod is retracted.

Description

Technical Field

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

[0002] Geotechnical engineering is a general term for any kind of rock and soil that make up the earth's crust from the perspective of engineering construction. Geotechnical engineering can be subdivided into five categories: hard (hard rock), sub-hard (soft rock), weakly connected, loosely connected, and with special composition, structure, state, and properties. Geotechnical engineering is an important part of civil engineering. It includes geotechnical engineering survey, design, testing, construction, and monitoring, involving the entire process of engineering construction. It is of great significance in various constructions such as housing, municipal administration, energy, water conservancy, roads, shipping, mining, and national defense. In order to further study the geotechnical structure, it is necessary to sample the rock and soil, so the corresponding geotechnical engineering sampling device is needed.

[0003] During actual drilling and sampling, some relatively soft rock and soil will cause rock and soil of different depths to be crushed and mixed together and brought out of the ground during the drilling process. This type of sample cannot conduct detailed research and analysis on rock and soil of different depths, which will cause inconvenience to subsequent experiments.

[0004] Therefore, the utility model provides a sampling device to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a sampling device that solves the above-mentioned problems. By starting the first servo motor to drive the screw rod to rotate, the screw rod can make the nut block move vertically downward, and then move downward with the protective tube and the narrow-diameter spiral drill rod, and starting the second servo motor to drive the narrow-diameter spiral drill rod to rotate, the narrow-diameter spiral drill rod will also drive the wide-diameter spiral drill rod to rotate to drill holes in the ground, so that it can quickly penetrate the ground. The broken soil will be transported upward by the cooperation of the narrow-diameter spiral drill rod and the protective tube, and then discharged through the through groove. As it continues to go deeper into the ground, the sampling tube can be pushed out of the installation groove by starting the hydraulic rod. The edge of one side of the circular cut block is relatively sharp and can be easily inserted into the rock and soil. When the rock and soil are squeezed into the sampling tube, they will encounter the circular extrusion block. At this time, the diameter of the rock and soil sample will be forcibly squeezed to become smaller. When the rock and soil sample passes through the circular extrusion block, it will not be restricted by the extrusion, and it will be broken and scattered to one side of the circular extrusion block. A sufficient sample volume can be retained to prevent the rock and soil sample from being effectively taken out when the hydraulic rod retracts.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a sampling device, including a mobile base, a drilling assembly is arranged on the top of the mobile base, a sampling assembly is arranged on the bottom of the drilling assembly, the sampling assembly includes a protective tube, an outer wall of the protective tube is fixedly connected to an assembly block, an installation groove is opened inside the assembly block, a hydraulic rod is fixedly installed inside the installation groove, a movable end of the hydraulic rod is fixedly connected to a sampling tube, one end of the sampling tube is fixedly connected to a circular cutting block, and the inner wall of the sampling tube is fixedly connected to a circular extrusion block.

[0007] Furthermore, the drilling assembly includes a support rod, which is fixedly connected to the top of the mobile base. The inner wall of the support rod is rotatably connected to a screw rod, the outer walls of the two screw rods are threadedly connected to nut blocks, and one end of the protective tube is fixedly connected to the bottom of the nut block.

[0008] By adopting the above technical solution, the nut block is used to install other important components.

[0009] Furthermore, a first servo motor is fixedly mounted on the top of the support rod, and an output shaft of the first servo motor is fixedly connected to one end of the lead screw.

[0010] By adopting the above technical solution, power is provided to drive the screw rod to rotate.

[0011] Furthermore, a narrow-diameter auger rod is rotatably connected to the bottom of the nut block, and the narrow-diameter auger rod is wrapped by a protective tube and movably connected to the inner wall of the protective tube. A through groove is formed on the outer wall of one end of the protective tube.

[0012] By adopting the above technical solution, power can be transmitted and the broken soil can be taken out.

[0013] Furthermore, one end of the narrow-diameter auger rod is fixedly connected to a wide-diameter auger rod.

[0014] By adopting the above technical solution, the main operation is drilling.

[0015] Furthermore, a second servo motor is fixedly mounted on the top of the nut block, and an output shaft of the second servo motor is fixedly connected to one end of the narrow-diameter spiral drill rod.

[0016] By adopting the above technical solution, power is mainly provided to drive the narrow-diameter auger rod and the wide-diameter auger rod to rotate. Beneficial Effects

[0017] The utility model provides a sampling device. Compared with the prior art, it has the following beneficial effects:

[0018] 1. The sampling device starts the first servo motor to drive the screw to rotate. The screw rotation can make the nut block move vertically downward, and then move the protective tube and the narrow-diameter auger rod downward together. The second servo motor is started to drive the narrow-diameter auger rod to rotate. The narrow-diameter auger rod will also drive the wide-diameter auger rod to rotate to drill holes in the ground, so that it can quickly penetrate the ground.

[0019] 2. The sampling device starts the hydraulic rod and pushes the sampling tube out of the installation groove. The edge of one side of the circular cut block is relatively sharp and can be easily inserted into the rock and soil. When the rock and soil are squeezed into the sampling tube, they will encounter the circular extrusion block. At this time, the diameter of the rock and soil sample will be forcibly squeezed to become smaller. When the rock and soil sample passes through the circular extrusion block, it will not be restricted by the extrusion, and it will break and scatter to one side of the circular extrusion block to retain a sufficient sample volume, preventing the rock and soil sample from being effectively taken out when the hydraulic rod retracts. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a three-dimensional diagram of the external structure of the utility model;

[0022] Figure 2 It is a partial structural diagram of the utility model;

[0023] Figure 3 This utility model Figure 2 A magnified view of the structure at center A;

[0024] Figure 4 It is a partial structural sectional view of the utility model;

[0025] Figure 5 This utility model Figure 4 A magnified view of the structure at point B.

[0026] In the figure: 1. Mobile base; 2. Sampling assembly; 21. Protective tube; 22. Assembly block; 23. Hydraulic rod; 24. Sampling tube; 25. Circular cutting block; 26. Circular extrusion block; 27. Mounting groove; 3. Drilling assembly; 31. Support rod; 32. First servo motor; 33. Screw rod; 34. Nut block; 35. Second servo motor; 36. Narrow-diameter auger rod; 37. Wide-diameter auger rod; 38. Through groove. DETAILED DESCRIPTION

[0027] It should be noted that in the description of the embodiments of the present application, the terms "front, rear", "left, right", "up, down", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application. The terms "install", "connect", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0028] The present application is further described in detail below through drawings and examples.

[0029] Reference Figures 1 to 5 The present application embodiment provides a sampling device, wherein the drilling assembly 3 comprises a support rod 31, which is fixedly connected to the top of the mobile base 1, and the inner wall of the support rod 31 is rotatably connected to a screw rod 33, and the outer walls of the two screw rods 33 are threadedly connected to nut blocks 34, and one end of the protective tube 21 is fixedly connected to the bottom of the nut block 34. A first servo motor 32 is fixedly installed on the top of the support rod 31, and the output shaft of the first servo motor 32 is fixedly connected to one end of the screw rod 33. A narrow-diameter auger rod 36 is rotatably connected to the bottom of the nut block 34, and the narrow-diameter auger rod 36 is wrapped by the protective tube 21 and movably connected to the inner wall of the protective tube 21, and a through groove 38 is provided on the outer wall of one end of the protective tube 21. A wide-diameter auger rod 37 is fixedly connected to one end of the narrow-diameter auger rod 36. A second servo motor 35 is fixedly installed on the top of the nut block 34, and the output shaft of the second servo motor 35 is fixedly connected to one end of the narrow-diameter auger rod 36.

[0030] During specific implementation: by starting the first servo motor 32 to drive the screw rod 33 to rotate, the rotation of the screw rod 33 can make the nut block 34 move vertically downward, and then move downward with the protective tube 21 and the narrow-diameter auger rod 36, and starting the second servo motor 35 to drive the narrow-diameter auger rod 36 to rotate, and the narrow-diameter auger rod 36 will also drive the wide-diameter auger rod 37 to rotate to drill holes in the ground, so that it can quickly penetrate into the ground, and the broken soil will be transported upward through the cooperation of the narrow-diameter auger rod 36 and the protective tube 21 and then discharged through the through groove 38.

[0031] Reference Figures 1 to 5In one aspect of the present embodiment, it includes a mobile base 1, a drilling assembly 3 is arranged on the top of the mobile base 1, a sampling assembly 2 is arranged on the bottom of the drilling assembly 3, the sampling assembly 2 includes a protective tube 21, an outer wall of the protective tube 21 is fixedly connected to an assembly block 22, an interior of the assembly block 22 is provided with a mounting groove 27, a hydraulic rod 23 is fixedly installed inside the mounting groove 27, a movable end of the hydraulic rod 23 is fixedly connected to a sampling tube 24, one end of the sampling tube 24 is fixedly connected to a circular cut block 25, and an inner wall of the sampling tube 24 is fixedly connected to a circular extrusion block 26.

[0032] During specific implementation: as the depth continues to go deeper underground, the sampling tube 24 can be pushed out from the installation groove 27 by starting the hydraulic rod 23. The edge of one side of the circular cutting block 25 is relatively sharp and can be easily inserted into the rock and soil. When the rock and soil are squeezed into the sampling tube 24, they will encounter the circular squeezing block 26. At this time, the diameter of the rock and soil sample will be forcibly squeezed to become smaller. When the rock and soil sample passes through the circular squeezing block 26, it will not be restricted by the squeezing, and it will break and scatter to one side of the circular squeezing block 26. A sufficient amount of sample can be retained to prevent the rock and soil sample from being effectively taken out when the hydraulic rod 23 retracts, thereby realizing sampling of rock and soil at different depths.

[0033] All electrical equipment in this solution are powered by an external power supply.

[0034] Working principle: By starting the first servo motor 32 to drive the screw rod 33 to rotate, the screw rod 33 can rotate to make the nut block 34 move vertically downward, and then move downward with the protective tube 21 and the narrow-diameter auger rod 36, and start the second servo motor 35 to drive the narrow-diameter auger rod 36 to rotate, and the narrow-diameter auger rod 36 will also drive the wide-diameter auger rod 37 to rotate to drill holes in the ground, so that it can quickly penetrate into the ground. The broken soil will be transported upward through the cooperation of the narrow-diameter auger rod 36 and the protective tube 21 and then discharged through the through groove 38. As it continues to go deeper into the ground , the sampling tube 24 can be pushed out of the installation groove 27 by starting the hydraulic rod 23. The edge of one side of the circular cutting block 25 is relatively sharp and can be easily inserted into the rock and soil. When the rock and soil are squeezed into the sampling tube 24, they will encounter the circular squeezing block 26. At this time, the diameter of the rock and soil sample will be forcibly squeezed to become smaller. When the rock and soil sample passes through the circular squeezing block 26, it will not be restricted by the squeezing, and it will be broken and scattered to one side of the circular squeezing block 26. Sufficient sample volume can be retained to prevent the rock and soil sample from being effectively taken out when the hydraulic rod 23 retracts, thereby realizing sampling of rock and soil at different depths.

[0035] 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.

[0036] Although the embodiments of the present application 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 application, and that the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A sampling device, comprising a mobile base (1), characterized in that: A drilling assembly (3) is arranged on the top of the mobile base (1), and a sampling assembly (2) is arranged on the bottom of the drilling assembly (3). The sampling assembly (2) comprises a protective tube (21), an outer wall of the protective tube (21) is fixedly connected to an assembly block (22), an interior of the assembly block (22) is provided with a mounting groove (27), a hydraulic rod (23) is fixedly installed inside the mounting groove (27), a movable end of the hydraulic rod (23) is fixedly connected to a sampling tube (24), one end of the sampling tube (24) is fixedly connected to a circular cut block (25), and an inner wall of the sampling tube (24) is fixedly connected to a circular extrusion block (26).

2. A sampling device according to claim 1, characterized in that: The drilling assembly (3) comprises a support rod (31), the support rod (31) being fixedly connected to the top of the mobile base (1), the inner wall of the support rod (31) being rotatably connected to a screw rod (33), the outer walls of the two screw rods (33) being threadedly connected to nut blocks (34), and one end of the protective tube (21) being fixedly connected to the bottom of the nut block (34).

3. A sampling device according to claim 2, characterized in that: A first servo motor (32) is fixedly mounted on the top of the support rod (31), and an output shaft of the first servo motor (32) is fixedly connected to one end of a screw rod (33).

4. A sampling device according to claim 2 or 3, characterized in that: A narrow-diameter auger rod (36) is rotatably connected to the bottom of the nut block (34); the narrow-diameter auger rod (36) is wrapped by a protective tube (21) and movably connected to the inner wall of the protective tube (21); a through groove (38) is formed on the outer wall of one end of the protective tube (21).

5. A sampling device according to claim 4, characterized in that: One end of the narrow-diameter auger rod (36) is fixedly connected to a wide-diameter auger rod (37).

6. A sampling device according to claim 2 or 3, characterized in that: A second servo motor (35) is fixedly mounted on the top of the nut block (34), and an output shaft of the second servo motor (35) is fixedly connected to one end of a narrow-diameter spiral drill rod (36).

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