A geotechnical sampling device for water conservancy detection

Abstract

The utility model discloses a kind of geotechnical sampling devices for water conservancy project detection, including L-shaped bearing frame, one side of the L-shaped bearing frame is equipped with hydraulic telescopic mechanism, the lower end both sides of the hydraulic telescopic mechanism are equipped with riser, the riser is slidably connected in one side of L-shaped bearing frame, one side of the riser is equipped with angle adjusting mechanism, drilling equipment is installed on the angle adjusting mechanism, the lower end four corners of the L-shaped bearing frame are equipped with support structure, one side of the L-shaped bearing frame is equipped with opening. The utility model breaks through the limitation of traditional equipment "rigid fixation, single vertical, rely on artificial", and is integrated with self-adapting leveling, multi-angle drilling, hydraulic drive, can be carried out stable operation on slope with gradient ≤15 °, suitable for grassland, mud ground, sandstone ground and various ground surface types, support non-vertical sampling, expand application scenario, replace component conveniently, suitable for long-term use in the field.

Description

Technical Field

[0001] This utility model relates to the field of rock and soil sampling drilling technology, and in particular to a rock and soil sampling device for water conservancy engineering testing. Background Technology

[0002] In engineering projects such as water conservancy, geological exploration, slope stability assessment, and disaster early warning, soil and rock sampling is a core method for obtaining the physical and mechanical parameters of the strata. Traditional sampling often relies on spiral drilling core-taking equipment, but it has the following problems: 1. Poor terrain adaptability: Most drilling equipment is designed as a vertical rigid structure. When operating in complex terrain areas such as mountains, dam slopes, and steep riverbanks, the equipment is prone to slippage and overturning due to shift in the center of gravity or unstable support, causing the borehole to deviate from the predetermined position and seriously affecting the accuracy of the data. 2. Leveling is difficult and inefficient: When faced with uneven ground (such as gravel ground or soft soil foundation), traditional equipment requires manual laying of wooden blocks or concrete foundations for leveling, which is not only time-consuming and labor-intensive, but also significantly increases on-site construction costs and preparation time. 3. Limited angle adjustment: Conventional equipment only supports vertical drilling (90°), and cannot achieve inclined drilling to avoid obstacles or simulate natural sliding surface direction sampling, which makes it difficult to meet the needs of modern geotechnical engineering for multidimensional sampling.

[0003] To address these issues, we propose a soil and rock sampling device for hydraulic engineering testing. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a soil and rock sampling device for water conservancy engineering testing.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A soil and rock sampling device for water conservancy engineering testing includes an L-shaped support frame. A hydraulic telescopic mechanism is installed on one side of the L-shaped support frame. Vertical plates are installed on both sides of the lower end of the hydraulic telescopic mechanism. One side of the vertical plate is slidably connected to one side of the L-shaped support frame. An angle adjustment mechanism is installed on one side of the vertical plate. A drilling device is installed on the angle adjustment mechanism. Support structures are installed at the four corners of the lower end of the L-shaped support frame. An opening is provided on one side of the L-shaped support frame. The hydraulic telescopic mechanism includes a mounting plate installed on one side of the upper end of the L-shaped support frame. A first hydraulic cylinder is mounted on the mounting plate. A connecting plate is fixed to the end of the piston rod of the first hydraulic cylinder. The two sides of the connecting plate are fixed to one side of two vertical plates. The angle adjustment mechanism includes a second hydraulic cylinder rotatably connected to one side of the upper end of the vertical plate, a rotating rod rotatably connected to one side of the lower end of the vertical plate, the piston rod end of the second hydraulic cylinder on the same side rotatably connected to one side of the upper end of the rotating rod on the same side, a horizontal plate is fixed between the two rotating rods, and the drilling equipment is installed on the horizontal plate.

[0006] Preferably, the support structure includes studs that pass through the four corners of the L-shaped support frame. Two nuts are threaded onto the studs, and the two nuts on the same side abut against the upper and lower ends of the L-shaped support frame, respectively. A pad is fixed to the lower end of the stud, and two ground nails are fixed to the lower end of the pad.

[0007] Preferably, a T-shaped slider is fixed on one side of the vertical plate, and two T-shaped grooves are provided on one side of the L-shaped support frame, with one T-shaped slider on the same side engaging with one T-shaped groove on the same side.

[0008] Preferably, the upper end of the L-shaped support frame is fixed with two lifting lugs.

[0009] Preferably, a counterweight is fixed to one side of the upper end of the L-shaped support frame.

[0010] Preferably, reinforcing rods are fixed at an angle on both sides of the L-shaped support frame.

[0011] This utility model has the following advantages: 1. Four-point independent adjustable outriggers with ground nail anchoring can operate stably on slopes with a gradient of ≤15°, preventing slippage accidents. It is suitable for various surface types such as grassland, mud, and gravel. 2. The dual hydraulic cylinder linkage tilting mechanism enables drilling at any angle from 0° to 30°, supports non-vertical sampling, and expands application scenarios; 3. All hydraulic components are externally mounted with clear connections. The modular design makes troubleshooting easy and component replacement convenient, making it suitable for long-term field use. In summary, this utility model breaks through the limitations of traditional equipment that is "rigidly fixed, single vertical, and dependent on manual labor." It integrates adaptive leveling, multi-angle drilling, and hydraulic drive, and can operate stably on slopes with a gradient of ≤15°. It is suitable for various surface types such as grassland, mud, and gravel, supports non-vertical sampling, expands application scenarios, and is easy to replace parts, making it suitable for long-term use in the field. Attached Figure Description

[0012] Figure 1 This is a structural diagram of the present invention; Figure 2 A structural diagram showing the angle adjustment mechanism of this utility model; Figure 3 for Figure 1 Enlarged view of the structure at point A.

[0013] In the diagram: 1 counterweight, 2 lifting lug, 3 first hydraulic cylinder, 4 L-shaped support frame, 5 reinforcing rod, 6 stud, 7 ground nail, 8 mounting plate, 9 T-shaped slide, 10 vertical plate, 11 second hydraulic cylinder, 12 drilling equipment, 13 horizontal plate, 14 opening, 15 nut, 16 pad, 17 T-shaped slider, 18 connecting plate, 19 rotating rod. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0015] Reference Figure 1-3 A soil and rock sampling device for water conservancy engineering testing includes an L-shaped support frame 4. The L-shaped support frame 4 serves as the main load-bearing skeleton and is welded from high-strength alloy steel, possessing good bending and torsional resistance. A hydraulic telescopic mechanism is installed on one side of the L-shaped support frame 4. Vertical plates 10 are installed on both sides of the lower end of the hydraulic telescopic mechanism. One side of the vertical plate 10 is slidably connected to one side of the L-shaped support frame 4. An angle adjustment mechanism is installed on one side of the vertical plate 10. A drilling device 12 is installed on the angle adjustment mechanism. Support structures are installed at the four corners of the lower end of the L-shaped support frame 4. An opening 14 is provided on one side of the L-shaped support frame 4. The hydraulic telescopic mechanism includes a mounting plate 8 installed on one side of the upper end of the L-shaped support frame 4. A first hydraulic cylinder 3 is installed on the mounting plate 8. A connecting plate 18 is fixed to the end of the piston rod of the first hydraulic cylinder 3. The two sides of the connecting plate 18 are fixed to one side of the two vertical plates 10. The first hydraulic cylinder 3 provides vertical feed power and drives the two vertical plates 10 to slide down along the T-shaped slide groove 9 synchronously through the connecting plate 18, so as to ensure motion synchronization and guiding accuracy. The angle adjustment mechanism includes a second hydraulic cylinder 11 rotatably connected to one side of the upper end of the vertical plate 10, a rotating rod 19 rotatably connected to one side of the lower end of the vertical plate 10, and the piston rod end of one second hydraulic cylinder 11 on the same side rotatably connected to one side of the upper end of one rotating rod 19 on the same side. A horizontal plate 13 is fixed between the two rotating rods 19. The drilling equipment 12 is installed on the horizontal plate 13. The rotating rod 19 is pushed to rotate by the second hydraulic cylinders 11 on both sides, which drives the horizontal plate 13 and the drilling equipment 12 on it to tilt as a whole, so as to realize the continuous adjustment of the drilling angle. A high-precision tilt sensor is built in to feed back the angle signal to the controller, forming a closed-loop servo system. The support structure includes studs 6 that run through the four corners of the L-shaped support frame 4. Two nuts 15 are threaded onto the studs 6. The two nuts 15 on the same side abut against the upper and lower ends of the L-shaped support frame 4, respectively. A pad 16 is fixed to the lower end of the studs 6, and two ground nails 7 are fixed to the lower end of the pad 16. The double ground nails 7 penetrate the soil to form a shear anchor, which significantly improves lateral stability. It is especially suitable for soft ground or cohesive soil after rain. The ground nails 7 are threaded and can be disassembled for hard rocky ground. A T-shaped slider 17 is fixed on one side of the vertical plate 10, and two T-shaped grooves 9 are provided on one side of the L-shaped support frame 4. One T-shaped slider 17 on the same side is engaged in one T-shaped groove 9 on the same side. The T-shaped slider 17 and the T-shaped groove 9 have a self-locking characteristic and can withstand a large lateral shear force to avoid jamming or displacement. The upper end of the L-shaped support frame 4 is fixed with two lifting lugs 2, and two standard lifting lugs 2 are set on the top, which conform to the GB / T27695-2011 "Lifting Hook" specification and supports multiple methods such as forklift, crawler crane, and drone swarm collaborative lifting. A counterweight 1 is fixed on one side of the upper end of the L-shaped support frame 4. The counterweight 1 at the upper end is used to balance the forward tilting moment of the drilling equipment and the horizontal plate system to prevent the whole machine from overturning when drilling at an angle. The L-shaped support frame 4 is fixed with reinforcing rods 5 on both sides at an incline. The inclined reinforcing rods 5 on both sides not only improve the overall rigidity, but also form a triangular stable support system, which effectively suppresses the lateral vibration caused by eccentric load during drilling. In this utility model, when in use: 1. Deployment Phase: Rapid Location and Initial Installation Using lifting equipment, the entire machine is lifted to the target sampling point via two lifting lugs 2. The device is then slowly lowered so that its four corners contact the ground. At this point, there is no need to level the site beforehand, and a certain slope of ≤15° is allowed. 2. Leveling Phase: Four-point independent support adjustment: Loosen the two nuts 15 on each corner, manually adjust the extension length of the studs 6, and adjust them one by one until the L-shaped support frame is in a horizontal state. Tighten the upper and lower nuts so that the pad 16 compacts the ground. At the same time, the double ground nails 7 penetrate the soil to form shear anchorage. This process can be completed under various ground conditions such as soft and semi-hardened ground, replacing the traditional pad installation and saving materials and manpower. 3. Angle setting: Preset drilling direction based on task requirements: Operators input the required drilling inclination angle, such as 15° for oblique sampling, via a remote control terminal to simulate a landslide surface. After the control system interprets the command, it activates the second hydraulic cylinders 11 on both sides to move synchronously. The piston rod of the hydraulic cylinder pushes the rotating rod 19 to rotate around the hinge point, causing the horizontal plate 13 and the drilling equipment 12 on it to tilt as a whole. The built-in angle sensor monitors the actual tilt angle in real time and feeds the data back to the controller to form a closed-loop adjustment, ensuring that the angle error is ≤±0.5°. It supports continuous adjustment from 0° vertical to 30°, covering most engineering sampling scenarios. The control terminal uses an HMI touch screen, which supports graphical input of the drilling trajectory (such as drawing oblique lines and arcs). The system automatically decomposes the data into a hydraulic action sequence, reducing the operating threshold. 4. Drilling Phase: Stable Advancement and Dynamic Compensation Start the first hydraulic cylinder 3, and its piston rod pushes the two vertical plates 10 to move downward at a uniform speed along the T-shaped slide 9 through the connecting plate 18. The vertical plates drive the entire angle adjustment mechanism and drilling equipment to descend synchronously, so as to achieve precise feeding. If the machine body shakes slightly due to local resistance changes during the process of the drill bit cutting into the soil, the control system can finely adjust the hydraulic pressure according to the sensor signal to maintain a constant drilling rate. 5. After sampling is completed: The first hydraulic cylinder reverses its direction, lifting the drill bit to its reset position for sample collection and core taking. The nut is then released, the ground spike is pulled out, and the entire machine returns to a compact state. The lifting lugs are then used to lift the machine off the site and proceed to the next measurement point.

[0016] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A soil and rock sampling device for water conservancy engineering testing, comprising an L-shaped support frame (4), characterized in that, A hydraulic telescopic mechanism is installed on one side of the L-shaped support frame (4). Vertical plates (10) are installed on both sides of the lower end of the hydraulic telescopic mechanism. One side of the vertical plate (10) is slidably connected to one side of the L-shaped support frame (4). An angle adjustment mechanism is installed on one side of the vertical plate (10). A drilling device (12) is installed on the angle adjustment mechanism. Support structures are installed at the four corners of the lower end of the L-shaped support frame (4). An opening (14) is provided on one side of the L-shaped support frame (4). The hydraulic telescopic mechanism includes a mounting plate (8) installed on one side of the upper end of the L-shaped support frame (4), a first hydraulic cylinder (3) is installed on the mounting plate (8), and a connecting plate (18) is fixed to the end of the piston rod of the first hydraulic cylinder (3). The two sides of the connecting plate (18) are fixed to one side of the two vertical plates (10). The angle adjustment mechanism includes a second hydraulic cylinder (11) rotatably connected to one side of the upper end of the vertical plate (10). A rotating rod (19) is rotatably connected to one side of the lower end of the vertical plate (10). The piston rod end of one second hydraulic cylinder (11) on the same side is rotatably connected to one side of the upper end of one rotating rod (19) on the same side. A horizontal plate (13) is fixed between the two rotating rods (19). The drilling equipment (12) is installed on the horizontal plate (13).

2. The soil and rock sampling device for water conservancy engineering testing according to claim 1, characterized in that: The support structure includes studs (6) that pass through the four corners of the L-shaped support frame (4). Two nuts (15) are threaded onto the studs (6). The two nuts (15) on the same side abut against the upper and lower ends of the L-shaped support frame (4). A pad (16) is fixed to the lower end of the studs (6). Two ground nails (7) are fixed to the lower end of the pad (16).

3. The soil and rock sampling device for water conservancy engineering testing according to claim 1, characterized in that: A T-shaped slider (17) is fixed on one side of the vertical plate (10), and two T-shaped grooves (9) are provided on one side of the L-shaped support frame (4). A T-shaped slider (17) on the same side is engaged in a T-shaped groove (9) on the same side.

4. The soil and rock sampling device for water conservancy engineering testing according to claim 1, characterized in that: The upper end of the L-shaped support frame (4) is fixed with two lifting lugs (2).

5. A soil and rock sampling device for water conservancy engineering testing according to claim 1, characterized in that: A counterweight (1) is fixed on one side of the upper end of the L-shaped support frame (4).

6. A soil and rock sampling device for water conservancy engineering testing according to claim 1, characterized in that: The L-shaped support frame (4) has reinforcing rods (5) fixed at an angle on both sides.

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