Sampling device for geotechnical engineering investigation

Abstract

The utility model discloses a geotechnical engineering investigation sampling device, and relates to the technical field of geotechnical sampling, the geotechnical engineering investigation sampling device comprises a rack and a drilling unit convenient for drilling and sampling, the rack is provided with an adjusting unit for changing the sampling depth and a supporting unit for improving the stability, and the output end of the adjusting unit is provided with a mounting seat; a drill rod is mounted on the mounting seat, a sampling unit is mounted on the drill rod, and a drilling unit for increasing the sampling and drilling speed is mounted at the lower end of the drill rod; the drilling unit comprises a drill bit base, the drill bit base is mounted at the lower end of the drill rod, a mounting groove, a hydraulic cavity and a movable groove are formed in the drill bit base, and a cutter mechanism is rotationally mounted in the mounting groove. The cutter mechanism has the beneficial effects that during drilling and sampling, the cutting edge part of the cutter mechanism can adapt to changes of a hard rock stratum and a soft soil layer through the universal mechanism, the connecting rod mechanism, the piston mechanism, the spring and the hydraulic cavity, a drill bit does not need to be frequently replaced, and the rock and soil drilling and sampling efficiency is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rock soil sampling, particularly to a rock-soil engineering investigation sampling device. BACKGROUND

[0002] Rock-soil engineering investigation refers to the activity of preparing investigation documents according to the requirements of construction projects, identifying, analyzing, and evaluating the geological, environmental characteristics, and rock-soil engineering conditions of the construction site. Rock-soil engineering investigation requires the use of rock-soil sampling machines.

[0003] According to the search, the patent application with the patent publication number CN222979101U discloses a rock-soil engineering investigation sampling device. The device allows the sampling tube to be pulled out from the inside of the rock-soil by using a sleeve, a lead screw, and an internal threaded tube, saving time and effort.

[0004] Comparing with the existing technology in the related field, it is found that different rock-soil at different depths has different hardness. Hard rock layers and soft soil layers require different drill bits, which slows down the replacement speed and drags the sampling efficiency. UTILITY MODEL CONTENT

[0005] The purpose of the utility model is to provide a rock-soil engineering investigation sampling device to solve the above problems.

[0006] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0007] A rock-soil engineering investigation sampling device includes a rack and a drilling unit for convenient drilling sampling. The rack is fixedly installed with an adjusting unit for changing the sampling depth and a supporting unit for improving stability. The output end of the adjusting unit is fixedly installed with a mounting seat, and the mounting seat is fixedly installed with a drill rod. The drill rod is fixedly installed with a sampling unit, and the lower end of the drill rod is fixedly installed with a drilling unit for improving the sampling drilling speed.

[0008] The drilling unit includes a drill bit base fixedly installed at the lower end of the drill rod. The drill bit base is provided with an installation slot, a hydraulic cavity, and a movable slot. A cutter mechanism is rotatably installed in the installation slot. A universal mechanism is rotatably installed above the cutter mechanism. The universal mechanism is fixedly connected with a connecting rod mechanism. The connecting rod mechanism is located in the movable slot. A spring is sleeved on the connecting rod mechanism. The end of the connecting rod mechanism is fixedly connected with a piston mechanism, which is slidingly connected in the hydraulic cavity.

[0009] Further, a flexible wear-resistant plate is arranged at the inlet of the installation slot, and the flexible wear-resistant plate is fixedly connected with the cutter mechanism.

[0010] Further, the sampling unit comprises a sampling groove, a first hydraulic telescopic mechanism, a connecting mechanism, the sampling groove is arranged on the side of the drill rod, a sampling box is slidably installed in the sampling groove, the first hydraulic telescopic mechanism is fixedly installed on the upper end of the sampling groove, a limiting plate is fixedly installed on the telescopic end of the first hydraulic telescopic mechanism, a pressure detection mechanism is fixedly installed on the limiting plate, the limiting plate is located directly above the sampling box, a second hydraulic telescopic mechanism and a scraper are rotatably installed at the inlet of the sampling groove, the second hydraulic telescopic mechanism is rotatably connected to the inner side of the scraper, and the connecting mechanism is fixedly installed on the adjusting unit and is connected with the first hydraulic telescopic mechanism around the second hydraulic telescopic mechanism.

[0011] Further, the supporting unit comprises supporting legs, the supporting legs are fixedly arranged on the rack, and an anti-skid mechanism is fixedly installed at the lower end of the supporting leg through bolts.

[0012] Further, a magnetic attraction mechanism is fixedly installed in the sampling groove, and the magnetic attraction mechanism is magnetically connected to the sampling box.

[0013] Further, the adjusting unit comprises a third hydraulic telescopic mechanism, the third hydraulic telescopic mechanism is fixedly installed on the rack, a movable frame is fixedly installed on the telescopic end of the third hydraulic telescopic mechanism, a rotary driving mechanism and a connecting mechanism are fixedly installed on the movable frame, and the output shaft of the rotary driving mechanism is fixedly connected to the mounting seat.

[0014] Further, a traction member is fixedly installed on the lower surface of the movable frame, a sliding groove is arranged on the upper surface of the mounting seat, and the lower end of the traction member is slidably connected in the sliding groove.

[0015] Compared with the prior art, the beneficial effects are as follows:

[0016] 1. When drilling and sampling, the blade part of the cutter mechanism can adapt to the changes of hard rock layers and soft soil layers through the universal mechanism, the connecting rod mechanism, the piston mechanism, the spring and the hydraulic cavity, so that the drill bit does not need to be frequently replaced, and the efficiency of rock drilling and sampling is ensured.

[0017] 2. The limiting plate limits the sample through the first hydraulic telescopic mechanism, so that the sample can be kept in the sampling state and the mixing of the sample is reduced, the precision of the sample is ensured, and multiple points can be sampled at the same time through the arranged sampling grooves, so that the sampling efficiency is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0019] Figure 1 This is a schematic diagram of the first isometric structure of the geotechnical engineering investigation and sampling device described in this utility model;

[0020] Figure 2 This utility model describes a geotechnical engineering survey and sampling device. Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 3 This is a schematic diagram of the second isometric structure of the geotechnical engineering investigation and sampling device described in this utility model;

[0022] Figure 4 This utility model describes a geotechnical engineering survey and sampling device. Figure 3 Enlarged structural diagram at point B;

[0023] Figure 5 This is a partial formal cross-sectional structural diagram of the geotechnical engineering investigation and sampling device described in this utility model;

[0024] Figure 6 This utility model describes a geotechnical engineering survey and sampling device. Figure 5 Enlarged structural diagram at point C;

[0025] Figure 7 This utility model describes a geotechnical engineering survey and sampling device. Figure 5 Enlarged structural diagram at point D;

[0026] Figure 8 This is a partial top view cross-sectional structural schematic diagram of the geotechnical engineering investigation and sampling device described in this utility model;

[0027] Figure 9 This utility model describes a geotechnical engineering survey and sampling device. Figure 8 Enlarged structural diagram at point E in the middle.

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Frame; 2. Drill rod; 301. Drill bit base; 302. Mounting slot; 303. Hydraulic chamber; 304. Piston mechanism; 305. Linkage mechanism; 306. Spring; 307. Movable slot; 308. Universal mechanism; 309. Cutting mechanism; 310. Flexible wear-resistant plate; 401. Sampling slot; 402. Sampling box; 403. Limiting plate; 404. First hydraulic telescopic mechanism; 405. Pressure detection mechanism; 406. Scraper; 407. Second hydraulic telescopic mechanism; 408. Connecting mechanism; 501. Outrigger; 502. Anti-slip mechanism; 601. Third hydraulic telescopic mechanism; 602. Movable frame; 603. Rotary drive mechanism; 7. Mounting base; 8. Traction component; 9. Slide groove; 10. Magnetic attraction mechanism. Detailed Implementation

[0030] like Figures 1-9 As shown, a geotechnical engineering survey sampling device includes a frame 1 and a drilling unit for easy drilling and sampling. An adjustment unit for changing the sampling depth and a support unit for improving stability are fixedly installed on the frame 1. A mounting base 7 is fixedly installed on the output end of the adjustment unit, and a drill rod 2 is fixedly installed on the mounting base 7. A sampling unit is fixedly installed on the drill rod 2, and a drilling unit for increasing the drilling speed is fixedly installed at the lower end of the drill rod 2. The frame 1 is mounted on an external transport device, which moves the frame 1 to the desired sampling location. The support unit improves the stability of the frame 1. The adjustment unit moves the drill rod 2 and the drilling unit via the mounting base 7. The drilling unit and adjustment unit allow the drill rod 2 to better penetrate the soil and rock. The adjustment unit controls the depth of the drill rod 2 in the soil and rock, thus facilitating sampling at different depths.

[0031] like Figures 4-6 As shown, the drilling unit includes a drill bit base 301, which is fixedly installed at the lower end of the drill rod 2. The drill bit base 301 has a mounting groove 302, a hydraulic chamber 303, and a movable groove 307. A cutting mechanism 309 is rotatably mounted in the mounting groove 302. A universal joint 308 is rotatably mounted on the cutting mechanism 309. A linkage mechanism 305 is fixedly connected to the universal joint 308. The linkage mechanism 305 is located in the movable groove 307. A spring 306 is sleeved on the piston mechanism 304, which is fixedly connected to the end of the linkage mechanism 305. The piston mechanism 304 is slidably connected within the hydraulic chamber 303. The drill bit base 301, cutting mechanism 309, universal joint 308, linkage mechanism 305, piston mechanism 304, and spring 306 operate using existing technology. The hydraulic chamber 303 is filled with hydraulic oil, which supports the piston mechanism 304. The spring 306 supports the linkage mechanism 305. 05 provides support. The linkage mechanism 305 drives one end of the cutting mechanism 309 for support via the universal joint 308. At this time, the angle between the cutting edge of the cutting mechanism 309 and the lower surface of the drill bit base 301 is small. The cutting mechanism 309 cuts and drills the rock and soil at the sampling location. When the hardness of the rock and soil increases during drilling, the force on the cutting mechanism 309 increases, and the cutting edge of the cutting mechanism 309 rotates. The other end of the cutting mechanism 309 drives the linkage mechanism 305 to move via the universal joint 308. The linkage mechanism 305 compresses the spring 306 and drives the piston mechanism 304 to squeeze the hydraulic oil in the hydraulic chamber 303. The angle between the cutting edge of the cutting mechanism 309 and the drill bit base 301 increases, and the cutting mechanism 309 can cut the rock and soil better. It can adaptively cut soils of different hardness without frequent drill bit replacement, ensuring the efficiency of rock and soil drilling and sampling.

[0032] like Figure 4 , Figure 6 As shown, a flexible wear-resistant plate 310 is provided at the inlet of the mounting groove 302. The flexible wear-resistant plate 310 is fixedly connected to the cutting mechanism 309. The flexible wear-resistant plate 310 adopts existing technology. When the flexible wear-resistant plate 310 is subjected to force, it will deform, so as to avoid affecting the movement of the cutting mechanism 309. The flexible wear-resistant plate 310 effectively prevents debris from entering the mounting groove 302.

[0033] like Figure 4 , Figures 7-9As shown, the sampling unit includes a sampling slot 401, a first hydraulic telescopic mechanism 404, and a connecting mechanism 408. The sampling slot 401 is arranged on the side of the drill rod 2. A sampling box 402 is slidably installed inside the sampling slot 401. The first hydraulic telescopic mechanism 404 is fixedly installed inside the upper part of the sampling slot 401. A limit plate 403 is fixedly installed on the telescopic end of the first hydraulic telescopic mechanism 404. A pressure detection mechanism 405 is fixedly installed on the limit plate 403. The limit plate 403 is located directly above the sampling box 402. A second hydraulic telescopic mechanism 408 is rotatably installed at the inlet of the sampling slot 401. 7 and scraper 406, the second hydraulic telescopic mechanism 407 is rotatably connected to the inner side of scraper 406, the connecting mechanism 408 is fixedly installed on the adjusting unit, the connecting mechanism 408 connects to the first hydraulic telescopic mechanism 404 surrounding the second hydraulic telescopic mechanism 407, the connecting mechanism 408 is connected to the external hydraulic control mechanism, the first hydraulic telescopic mechanism 404, pressure detection mechanism 405, second hydraulic telescopic mechanism 407 and connecting mechanism 408 work using existing technology, when drilling in rock and soil, the second hydraulic telescopic mechanism 407 drives the scraper 406 to move the inlet end of the sampling groove 401. When the drill rod 2 reaches the sampling depth in the soil and rock, the second hydraulic telescopic mechanism 407 drives the scraper 406 to move in the opposite direction, causing one end of the scraper 406 to tilt. As the drill rod 2 drives the scraper 406 to rotate, the scraper 406 scrapes the soil on the borehole wall. The scraped soil enters the sampling box 402 through the inlet end of the sampling groove 401, completing the sampling. After sampling, the second hydraulic telescopic mechanism 407 drives the scraper 406 to reset, causing the scraper 406 to close the sampling groove 401. At the same time, the first hydraulic telescopic mechanism 404 drives the limit plate 40 3. The device moves to make the limiting plate 403 fit against the sample. The pressure detection mechanism 405 determines whether the limiting plate 403 is in contact with the sample. The limiting plate 403 limits the sample being sampled, preventing the sample from surging and mixing when it is taken out, keeping the sample in the sampling state, reducing sample mixing, and ensuring sample accuracy. The sampling slots 401 arranged in a row can be used to sample multiple points at the same time, ensuring sampling efficiency. The scraper 406 closes the sample, preventing the samples from coming into contact and mixing when entering and leaving the sample, ensuring the accuracy of sample detection.

[0034] like Figure 1 , Figure 3 As shown, the support unit includes legs 501, which are fixedly arranged on the frame 1. The lower end of the legs 501 is fixedly installed with an anti-slip mechanism 502 by bolts. The anti-slip mechanism 502 works by existing technology. The anti-slip mechanism 502 improves the stability of the legs 501. The legs 501 and the anti-slip mechanism 502 provide stable support for the frame 1, effectively improving the stability of the frame 1 during the sampling process, avoiding movement during the sampling process, and ensuring the accuracy of the sampling.

[0035] like Figure 7 As shown, a magnetic suction mechanism 10 is fixedly installed inside the sampling slot 401. The magnetic suction mechanism 10 magnetically connects to the sampling box 402. The magnetic suction mechanism 10 operates using existing technology. The sampling box 402 is a magnetic box. The magnetic suction mechanism 10 adsorbs and fixes the sampling box 402, improving the firmness and stability of the sampling box 402 in the sampling slot 401. After sampling, it is also convenient to quickly remove the sampling box 402, effectively improving the convenience of installing and disassembling the sampling box 402.

[0036] like Figures 1-3 As shown, the adjustment unit includes a third hydraulic telescopic mechanism 601, which is fixedly mounted on the frame 1. A movable frame 602 is fixedly mounted on the telescopic end of the third hydraulic telescopic mechanism 601. A rotary drive mechanism 603 and a connecting mechanism 408 are fixedly mounted on the movable frame 602. The output shaft of the rotary drive mechanism 603 is fixedly connected to the mounting base 7. The third hydraulic telescopic mechanism 601 and the rotary drive mechanism 603 operate using existing technology. The third hydraulic telescopic mechanism 601 drives the rotary drive mechanism 603 and the mounting base 7 to move through the movable frame 602, thereby adjusting the depth of the drill rod 2 in the soil and rock, facilitating sampling at different depths. The rotary drive mechanism 603 drives the drill rod 2 and the drilling unit to rotate through the mounting base 7, facilitating better entry of the drill rod 2 and the drilling unit into the soil and rock, ensuring sampling efficiency.

[0037] like Figure 2 As shown, a traction component 8 is fixedly installed on the lower surface of the movable frame 602, and a sliding groove 9 is provided on the upper surface of the mounting base 7. The lower end of the traction component 8 is slidably connected in the sliding groove 9. When the mounting base 7 rotates, the traction component 8 and the sliding groove 9 guide and limit the mounting base 7, effectively improving the stability of the mounting base 7 when rotating, avoiding skew during sampling, and ensuring the accuracy of the sample.

[0038] Working principle: such as Figure 1 , Figure 3 As shown, the frame 1 is moved to the sampling position by an external transport device, the support leg 501 is fixed by the anti-slip mechanism 502, and the frame 1 is stably supported by the support leg 501 and the anti-slip mechanism 502.

[0039] like Figures 1-3 As shown, the third hydraulic telescopic mechanism 601 drives the rotary drive mechanism 603 and the mounting base 7 to move through the movable frame 602, thereby adjusting the depth of the drill rod 2 in the rock and soil. The rotary drive mechanism 603 drives the drill rod 2 and the drill bit base 301 to rotate through the mounting base 7, and guides and limits the mounting base 7 through the traction component 8 and the slide 9.

[0040] When drilling, if Figures 4-6As shown, the hydraulic oil in the hydraulic chamber 303 supports the piston mechanism 304, the spring 306 supports the connecting rod mechanism 305, the connecting rod mechanism 305 drives one end of the cutting mechanism 309 to be supported through the universal joint 308, the drill bit base 301 drives the cutting mechanism 309 to rotate, and the cutting mechanism 309 cuts the rock and soil to complete the drilling.

[0041] like Figures 4-6 As shown, when the hardness of the rock and soil increases during drilling, the force on the cutting mechanism 309 increases, and the cutting edge of the cutting mechanism 309 rotates. The other end of the cutting mechanism 309 drives the linkage mechanism 305 to move through the universal joint 308. The linkage mechanism 305 compresses the spring 306 and drives the piston mechanism 304 to squeeze the hydraulic oil in the hydraulic chamber 303. The angle between the cutting edge of the cutting mechanism 309 and the drill bit base 301 increases, and the cutting mechanism 309 can cut the rock and soil better.

[0042] like Figure 4 , Figures 7-9 As shown, when drilling in rock and soil, the second hydraulic telescopic mechanism 407 drives the scraper 406 to seal the inlet end of the sampling groove 401. When the drill rod 2 enters the sampling depth in the rock and soil, the second hydraulic telescopic mechanism 407 drives the scraper 406 to move in the opposite direction, causing one end of the scraper 406 to tilt. When the drill rod 2 drives the scraper 406 to rotate, the scraper 406 scrapes the soil on the hole wall. The scraped soil enters the sampling box 402 through the inlet end of the sampling groove 401, completing the sampling.

[0043] like Figures 7-9 As shown, after sampling is completed, the second hydraulic telescopic mechanism 407 drives the scraper 406 to reset again, so that the scraper 406 closes the sampling slot 401. At the same time, the first hydraulic telescopic mechanism 404 drives the limiting plate 403 to move, so that the limiting plate 403 is attached to the sample. The detection value of the pressure detection mechanism 405 determines whether the limiting plate 403 is in contact with the sample. The limiting plate 403 limits the sample to prevent the sample from surging and mixing when it is taken out. The closure of the scraper 406 prevents the samples from coming into contact and mixing during sampling. After the drill rod 2 is removed from the sampling hole, the scraper 406 opens, and the sampling box 402 is fixed by the magnetic suction mechanism 10, which can be quickly taken out, completing the sample collection.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A geotechnical engineering investigation and sampling device, characterized in that, It includes a frame (1) and a drilling unit for easy drilling and sampling. The frame (1) is fixedly equipped with an adjustment unit for changing the sampling depth and a support unit for improving stability. The output end of the adjustment unit is fixedly equipped with a mounting base (7). The mounting base (7) is fixedly equipped with a drill rod (2). The drill rod (2) is fixedly equipped with a sampling unit. The lower end of the drill rod (2) is fixedly equipped with a drilling unit to improve the sampling drilling speed. The drilling unit includes a drill bit base (301), which is fixedly installed at the lower end of the drill rod (2). The drill bit base (301) is provided with an installation groove (302), a hydraulic chamber (303), and a movable groove (307). A cutting mechanism (309) is rotatably installed in the installation groove (302). A universal joint (308) is rotatably installed on the cutting mechanism (309). A linkage mechanism (305) is fixedly connected to the universal joint mechanism (308). The linkage mechanism (305) is located in the movable groove (307). A spring (306) is sleeved on the linkage mechanism (305). A piston mechanism (304) is fixedly connected to the end of the linkage mechanism (305). The piston mechanism (304) is slidably connected in the hydraulic chamber (303).

2. The geotechnical engineering investigation and sampling device according to claim 1, characterized in that: A flexible wear-resistant plate (310) is provided at the inlet of the mounting groove (302), and the flexible wear-resistant plate (310) is fixedly connected to the cutting mechanism (309).

3. The geotechnical engineering investigation and sampling device according to claim 1, characterized in that: The sampling unit includes a sampling slot (401), a first hydraulic telescopic mechanism (404), and a connecting mechanism (408). The sampling slot (401) is arranged on the side of the drill rod (2). A sampling box (402) is slidably installed in the sampling slot (401). The first hydraulic telescopic mechanism (404) is fixedly installed inside the upper part of the sampling slot (401). A limit plate (403) is fixedly installed on the telescopic end of the first hydraulic telescopic mechanism (404). A pressure plate is fixedly installed on the limit plate (403). Force detection mechanism (405), the limiting plate (403) is located directly above the sampling box (402), the inlet of the sampling slot (401) is rotatably equipped with a second hydraulic telescopic mechanism (407) and a scraper (406), the second hydraulic telescopic mechanism (407) is rotatably connected to the inner side of the scraper (406), the connecting mechanism (408) is fixedly installed on the adjustment unit, and the connecting mechanism (408) connects the first hydraulic telescopic mechanism (404) to surround the second hydraulic telescopic mechanism (407).

4. The geotechnical engineering investigation and sampling device according to claim 1, characterized in that: The support unit includes a support leg (501), which is fixedly arranged on the frame (1). The lower end of the support leg (501) is fixedly installed with an anti-slip mechanism (502) by bolts.

5. A geotechnical engineering investigation and sampling device according to claim 3, characterized in that: A magnetic suction mechanism (10) is fixedly installed inside the sampling slot (401), and the magnetic suction mechanism (10) is magnetically connected to the sampling box (402).

6. The geotechnical engineering investigation and sampling device according to claim 3, characterized in that: The adjustment unit includes a third hydraulic telescopic mechanism (601), which is fixedly installed on the frame (1). A movable frame (602) is fixedly installed on the telescopic end of the third hydraulic telescopic mechanism (601). A rotary drive mechanism (603) and the connecting mechanism (408) are fixedly installed on the movable frame (602). The output shaft of the rotary drive mechanism (603) is fixedly connected to the mounting base (7).

7. A geotechnical engineering investigation and sampling device according to claim 6, characterized in that: The lower surface of the movable frame (602) is fixedly equipped with a traction member (8), and the upper surface of the mounting base (7) is provided with a sliding groove (9). The lower end of the traction member (8) is slidably connected in the sliding groove (9).

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