Geotechnical sampling device for geotechnical engineering investigation

Abstract

The utility model relates to the technical field of geotechnical engineering investigation, in particular to a geotechnical sampling device for geotechnical engineering investigation. Comprising a bottom plate, the bottom plate is provided with a sampling assembly used for sampling rock soil, the bottom plate is provided with a fixing assembly used for positioning a sampling device, and the bottom plate is provided with a moving assembly used for driving the sampling device to move; a measuring assembly for measuring the sampling depth is mounted on the sampling assembly. Through the arrangement of the sampling assembly, during sampling, a plurality of groups of second augers are driven to rotate by a plurality of groups of second motors, and a plurality of groups of sampling drill bits are driven to rotate by a plurality of groups of augers, so that when a drill rod moves to different depths, the plurality of groups of sampling drill bits can sample at different depths; the drill rod can be used for stratified sampling of rock soil with different depths at a time, meanwhile, mixing of surface soil samples and deep soil samples is avoided, and the sampling efficiency and quality are improved.

Description

Technical Field

[0001] This utility model belongs to the field of geotechnical engineering investigation technology, and specifically relates to a geotechnical engineering investigation geotechnical sampling device. Background Technology

[0002] Geological exploration is short for geological exploration work. It is a focused investigation and study of the geological conditions of a certain area, such as rocks, stratigraphy, minerals, groundwater, and landforms, based on the needs of economic construction, national defense construction, and scientific and technological development. In geotechnical engineering geological exploration, sampling devices are often used to collect samples of rocks and soil.

[0003] A search revealed that Chinese patent application number CN202222899477.0 discloses a soil and rock sampling device for geotechnical engineering geological exploration. The device includes a base plate, with a sampling assembly positioned above it. Multiple ground-piercing cylinders are fixed inside the base plate, with their upper and lower ends extending above and below the base plate, respectively. A threaded rod is mounted on the bottom of each ground-piercing cylinder via a rotating shaft, and a rotating plate is mounted on the top of the threaded rod extending above the cylinder. Two threaded blocks are fitted onto the outer wall of each threaded rod inside the ground-piercing cylinder. This invention utilizes a tool that engages with a groove on the rotating plate. Rotating the rotating plate causes the threaded rod to rotate, resulting in the threaded blocks moving vertically downwards. A connecting rod then applies a thrust to the ground-piercing tip, causing it to extend laterally and penetrate the soil, thus restricting the vertical movement of the ground-piercing cylinder and improving the device's stability.

[0004] However, the device still has the following drawbacks:

[0005] When sampling, this device requires multiple drilling operations and re-drilling the drill bit to sample soil and rock at different depths. It cannot sample soil and rock layers at different depths in a single drilling operation. At the same time, the sampling process can lead to the mixing of surface soil samples with deep soil samples, making it impossible to sample at specific points. This results in a decrease in sample quality and inaccurate analysis and testing of soil samples. Summary of the Invention

[0006] To address the aforementioned problems, this utility model provides a soil and rock sampling device for geotechnical engineering investigation. It includes a base plate, on which a sampling component for sampling soil and rock is mounted; a fixing component for positioning the sampling device is mounted on the base plate; a moving component for moving the sampling device is mounted on the base plate; and a measuring component for measuring the sampling depth is mounted on the sampling component.

[0007] The sampling assembly includes a mounting frame mounted on a base plate. A first movable plate is slidably connected inside the mounting frame. A drill rod is mounted on the first movable plate. Multiple sampling slots are formed on the drill rod. A fixing plate is installed in each of the multiple sampling slots. A second motor is mounted on the multiple fixing plates. An auger is driven to the output end of the second motor. A sampling drill bit is installed at one end of the auger.

[0008] Furthermore, a first hydraulic rod is mounted on the mounting bracket, the output end of the first hydraulic rod passes through the mounting bracket, and the output end of the first hydraulic rod is mounted on the first movable plate.

[0009] Furthermore, a mounting frame is installed at the bottom of the first movable plate, and a first motor is mounted on the mounting frame. The output end of the first motor is connected to the drill rod.

[0010] Furthermore, two sets of guide rods are installed inside the mounting frame, and both sets of guide rods are slidably connected to the first moving plate.

[0011] Furthermore, the measuring component includes a scale plate mounted on a mounting bracket, a measuring plate slidably connected to the scale plate, and the measuring plate mounted on a first movable plate.

[0012] Furthermore, the moving component includes two sets of second hydraulic rods, both sets of second hydraulic rods are mounted on the base plate, and the two sets of second hydraulic rods are symmetrically arranged with the mounting frame as the center.

[0013] Furthermore, a second movable plate is installed on the output end of the second hydraulic rod, and two sets of movable wheels are installed on the second movable plate.

[0014] Furthermore, the fixing assembly includes four sets of positioning rods, all of which are threadedly connected to the base plate. A drill bit is installed at one end of each of the four sets of positioning rods, and a throttle handle is installed at the other end of each of the four sets of positioning rods.

[0015] The beneficial effects of this utility model are:

[0016] This invention, through the configuration of the sampling component, utilizes multiple sets of second motors to drive multiple sets of second augers during sampling. These augers, in turn, drive multiple sets of sampling drill bits to rotate. This allows the multiple sampling drill bits to sample at different depths as the drill rod moves, enabling the drill rod to perform layered sampling of soil and rock at different depths in a single operation. Simultaneously, it avoids mixing surface soil samples with deep soil samples, thus improving sampling efficiency and quality.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure according to an embodiment of the present utility model is shown;

[0020] Figure 2 A schematic diagram of the right-side structure according to an embodiment of the present invention is shown;

[0021] Figure 3 A partial cross-sectional view of the sampling component according to an embodiment of the present invention is shown.

[0022] In the diagram: 110, base plate; 210, mounting bracket; 220, first hydraulic rod; 230, first moving plate; 240, guide rod; 250, mounting frame; 260, first motor; 270, drill rod; 280, sampling slot; 281, second motor; 282, fixing plate; 283, auger; 284, sampling drill bit; 310, scale plate; 320, measuring plate; 410, second hydraulic rod; 420, second moving plate; 430, moving wheel; 510, positioning rod; 520, drill bit; 530, throttle. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] Please see Figure 1-3This utility model provides a technical solution: a soil and rock sampling device for geotechnical engineering investigation. It includes a base plate 110, on which a sampling component for sampling soil and rock is installed; a fixing component for positioning the sampling device is installed on the base plate 110; a moving component for moving the sampling device is installed on the base plate 110; and a measuring component for measuring the sampling depth is installed on the sampling component.

[0025] The sampling assembly includes a mounting frame 210, which is mounted on a base plate 110. A first movable plate 230 is slidably connected inside the mounting frame 210. A drill rod 270 is mounted on the first movable plate 230. Multiple sampling slots 280 are formed on the drill rod 270. A fixing plate 282 is installed in each of the multiple sampling slots 280. A second motor 281 is mounted on the multiple fixing plates 282. An auger 283 is drivenly connected to the output end of the second motor 281. A sampling drill bit 284 is installed at one end of the auger 283.

[0026] A second motor 281 provides driving force to rotate the auger 283, which in turn rotates the sampling drill bit 284. The sampling drill bit 284 collects the soil and rock through the auger 283 into the sampling trench 280. After the drill rod 270 leaves the ground, the auger 283 rotates in the opposite direction, thereby discharging the soil and rock from the sampling trench 280 and collecting and storing the sampled soil and rock. Multiple sets of second motors 281 are individually controlled, allowing different second motors 281 to operate at different depths when the drill rod 270 moves. This enables layered sampling of soil and rock at different depths in a single operation, improving sampling efficiency. Furthermore, after sampling is completed, the auger 283 stops rotating, preventing external soil from easily entering the sampling trench 280 and avoiding mixing of soil and rock samples from different depths, thus improving sampling quality.

[0027] A first hydraulic rod 220 is mounted on the mounting bracket 210. The output end of the first hydraulic rod 220 passes through the mounting bracket 210 and is mounted on the first movable plate 230.

[0028] By setting a first hydraulic rod 220, the drill rod 270 is driven to move vertically, so that the drill rod 270 can be moved to different depths on the ground.

[0029] A mounting frame 250 is installed at the bottom of the first movable plate 230, and a first motor 260 is installed on the mounting frame 250. The output end of the first motor 260 is connected to the drill rod 270.

[0030] By setting a first motor 260 to provide driving force, the drill rod 270 is rotated, so that the drill rod 270 drills into the ground.

[0031] Two sets of guide rods 240 are installed inside the mounting frame 250, and both sets of guide rods 240 are slidably connected to the first moving plate 230.

[0032] By setting the guide rod 240 to guide the first moving plate 230, the drill rod 270 is ensured to remain vertical during drilling and to avoid deflection.

[0033] The measuring component includes a scale plate 310, which is mounted on a mounting bracket 210. A measuring plate 320 is slidably connected to the scale plate 310 and is mounted on a first movable plate 230.

[0034] By setting the scale plate 310, when the drill rod 270 drills into the ground, the first moving plate 230 drives the measuring plate 320 to move on the scale plate 310, thereby measuring the depth of the drill rod 270, which facilitates the control of the depth of the drill rod 270, so that the user can sample the soil and rock at different depths.

[0035] The moving component includes two sets of second hydraulic rods 410, both sets of second hydraulic rods 410 are mounted on the base plate 110, and the two sets of second hydraulic rods 410 are symmetrically arranged with the mounting frame 210 as the center.

[0036] A second movable plate 420 is installed on the output end of the second hydraulic rod 410, and two sets of movable wheels 430 are installed on the second movable plate 420.

[0037] When the sampling device needs to be moved, the second hydraulic rod 410 drives the second moving plate 420 to move vertically, so that the moving wheel 430 contacts the ground, thereby supporting the sampling device and allowing the moving wheel 430 to move the sampling device, thus improving the flexibility of the sampling device.

[0038] The fixing assembly includes four sets of positioning rods 510, all of which are threaded onto the base plate 110. A drill bit 520 is installed at one end of each of the four sets of positioning rods 510, and a throttle 530 is installed at the other end of each of the four sets of positioning rods 510.

[0039] During sampling, the second hydraulic rod 410 drives the second moving plate 420 to move vertically, causing the moving wheel 430 to separate from the ground. At the same time, the positioning rod 510 contacts the ground to support the sampling device. Then, the handle 530 is rotated, causing the handle 530 to drive the positioning rod 510 to rotate and drill into the ground through the drill bit 520 to position the sampling device and keep it stable during sampling.

[0040] Specifically, the internal electrical connection structures of the first hydraulic rod 220, the first motor 260, the second motor 281, and the second hydraulic rod 410 are well known to those skilled in the art and will not be described in detail here. All electrical components appearing in this application are externally connected to a power source during use.

[0041] The circuits, electrical components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The scope of protection of this utility model does not involve any improvement to the software.

[0042] The control method described in this application is automatic control via a controller. The controller's control circuit can be easily implemented by those skilled in the art through simple programming, and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A soil and rock sampling device for geotechnical engineering investigation, characterized in that: Includes a base plate (110), on which a sampling component for sampling soil and rock is installed, on which a fixing component for positioning the sampling device is installed, on which a moving component for moving the sampling device is installed, and on which a measuring component for measuring the sampling depth is installed. The sampling assembly includes a mounting frame (210) mounted on a base plate (110). A first movable plate (230) is slidably connected inside the mounting frame (210). A drill rod (270) is mounted on the first movable plate (230). Multiple sampling slots (280) are formed on the drill rod (270). A fixing plate (282) is installed in each of the multiple sampling slots (280). A second motor (281) is mounted on each of the multiple fixing plates (282). An auger (283) is driven to the output end of the second motor (281). A sampling drill bit (284) is installed at one end of the auger (283).

2. The geotechnical sampling device for geotechnical engineering investigation according to claim 1, characterized in that: A first hydraulic rod (220) is mounted on the mounting bracket (210), the output end of the first hydraulic rod (220) passes through the mounting bracket (210), and the output end of the first hydraulic rod (220) is mounted on the first movable plate (230).

3. A geotechnical sampling device for geotechnical engineering investigation according to claim 2, characterized in that: The bottom of the first movable plate (230) is equipped with a mounting frame (250), and a first motor (260) is mounted on the mounting frame (250). The output end of the first motor (260) is connected to the drill rod (270).

4. A geotechnical sampling device for geotechnical engineering investigation according to claim 3, characterized in that: Two sets of guide rods (240) are installed inside the mounting frame (250), and both sets of guide rods (240) are slidably connected to the first moving plate (230).

5. A geotechnical sampling device for geotechnical engineering investigation according to claim 4, characterized in that: The measuring component includes a scale plate (310) mounted on a mounting bracket (210), and a measuring plate (320) slidably connected to the scale plate (310), the measuring plate (320) being mounted on a first movable plate (230).

6. A geotechnical sampling device for geotechnical engineering investigation according to claim 5, characterized in that: The moving component includes two sets of second hydraulic rods (410), both sets of second hydraulic rods (410) are mounted on the base plate (110), and the two sets of second hydraulic rods (410) are symmetrically arranged with the mounting frame (210) as the center.

7. A geotechnical sampling device for geotechnical engineering investigation according to claim 6, characterized in that: A second movable plate (420) is installed on the output end of the second hydraulic rod (410), and two sets of movable wheels (430) are installed on the second movable plate (420).

8. A geotechnical sampling device for geotechnical engineering investigation according to claim 7, characterized in that: The fixing assembly includes four sets of positioning rods (510), all of which are threaded onto the base plate (110). A drill bit (520) is installed at one end of each of the four sets of positioning rods (510), and a throttle (530) is installed at the other end of each of the four sets of positioning rods (510).

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