Construction geological survey sampling equipment

Abstract

Provision of construction geological survey sampling equipment. The present invention includes a boring pipe for drilling holes, and a sampling mechanism is provided within the boring pipe, the sampling mechanism including a sampling disk. By combining the sampling disk and a plurality of independent sampling tubes, the sampling tubes can be sequentially protruded from the sampling hole at different depths with a single penetration of the boring pipe, thereby achieving continuous layer-by-layer sample collection, one or more samplings at the same position, and continuous sampling at different positions, without the need for intermediate sampling tube replacement or secondary drilling, thereby improving sampling efficiency, accuracy, and versatility.

Description

[Technical Field]

[0001] This application relates to geological surveying technology, and more particularly to a sampling device for engineering geological surveying. [Background technology]

[0002] Engineering geological surveying is an important part of assessing geological conditions during construction, requiring the collection of soil samples at different depths to analyze geological characteristics. However, conventional techniques have significant drawbacks. For example, Chinese invention patent publication number CN113295458A discloses a geological surveying instrument and method, which uses airflow suction to achieve sampling. However, its single-point sampling design requires repeated adjustment of the boring bit position, resulting in low efficiency. Chinese invention patent publication number CN118275159A discloses a geological surveying sampling device and method, which uses a nested pipe structure to enable layer-by-layer sampling. However, it relies on the dismantling of the outer pipe and secondary drilling of the inner pipe, which is cumbersome to operate, prone to sample contamination, and lacks continuity. To meet the demands for accuracy, efficiency, and reliability in engineering geological surveying, there is a strong need for an efficient sampling device that can continuously collect samples at multiple depths in a single drilling. Summary of the Invention [Problem to be solved by the invention]

[0003] SUMMARY OF THE INVENTION An object of the present invention is to provide a geological surveying sampling device for engineering work that overcomes the above-mentioned drawbacks of the prior art. [Means for solving the problem]

[0004] In order to achieve the above object, the present application proposes the following technical solution: an engineering geological survey sampling device includes a boring pipe for drilling holes, a sampling mechanism is provided within the boring pipe, the sampling mechanism includes a sampling board, the sampling board is provided with at least two pipe seats arranged in a circular array, the pipe seats are used to attach sampling pipes, the sampling pipes are composed of an outer pipe and an inner pipe, one side of the outer pipe is provided with a driving member for driving the inner pipe to move in its axial direction, the sampling board is connected to a first rotating member for driving the sampling board to rotate around the central axis of the boring pipe, at least one sampling hole is formed in the boring pipe, when the sampling board rotates, the sampling pipe moves to the position of the sampling hole, and the driving member drives the inner pipe to protrude out of the sampling hole for sampling.

[0005] Furthermore, the number of the sampling holes is one, and the sampling disk can rotate to move each of the sampling tubes to the position of the sampling hole in sequence.

[0006] Furthermore, the number of the sampling holes is the same as the number of the pipe seats, and the sampling disk rotates to bring the sampling pipes into one-to-one correspondence with the sampling holes.

[0007] Furthermore, the tube seat is rotatably attached to the sampling table, and the tube seat is connected to a second rotating member that drives the tube seat to rotate about its own axis; When the sampling tube is at the position of the sampling hole, the tube seat can rotate so that the axial direction of the sampling tube and a first radial direction of the sampling disc form a first included angle, and the first radial direction is the direction of a line connecting the center of the tube seat and the center of the sampling disc.

[0008] Furthermore, the first included angle is between 0° and 60°.

[0009] Furthermore, the second rotating member includes an annular frame at the bottom of the sampling plate, the annular frame is fixedly connected to the inner wall of the boring pipe via a plurality of connecting rods, a first rotating shaft is fixedly connected to the bottom of the pipe seat, the first rotating shaft is rotatably connected to the inner wall of the sampling plate through the sampling plate, a first gear is fixedly connected to the bottom of the first rotating shaft, and a toothed portion that can mesh with the first gear is provided on the inside of the annular frame.

[0010] Furthermore, a convex portion is provided at one end of the inner tube close to the center of the sampling disk, and a spiral groove is formed on the inner wall of the outer tube that is slidingly connected to the convex portion, so that the inner tube can rotate around its central axis when moving in the axial direction of the outer tube.

[0011] Furthermore, a plurality of the sampling mechanisms are provided and arranged in an array in the axial direction of the boring pipe.

[0012] Furthermore, the first rotating member includes a first motor, which is fixed to the inner wall of the boring pipe via a mounting frame, and the output shaft of the first motor is arranged coaxially with the boring pipe, and one end of the output shaft is fixedly connected to the center of the sampling board.

[0013] Furthermore, the first rotating member includes a first motor, which is fixed to the inner wall of the boring pipe via a mounting frame, and the output shaft of the first motor is arranged coaxially with the boring pipe, and one end of the output shaft is fixedly connected to the center of the sampling board. [Effects of the Invention]

[0014] Compared with the prior art, the engineering geological survey sampling device provided by the present application has the following beneficial effects:

[0015] 1. This engineering geological survey sampling device, combined with the provided sampling mechanism, rotary sampling table, and multiple independent sampling pipes, allows the sampling pipes to be sequentially protruded from the sampling hole at different depths with a single penetration of the boring pipe, enabling continuous layer-by-layer sampling, single or multiple sampling at the same location, and continuous sampling at different locations, without the need for intermediate sampling pipe replacement or secondary drilling, thereby improving sampling efficiency, accuracy, and versatility, reducing work time and costs, and suitable for rapid and accurate exploration of complex geological environments.

[0016] 2. With this sampling device for geological surveying of construction work, by controlling the rotation angle of the sampling plate, when the sampling pipe and the sampling hole are misaligned, the opening at the position of the sampling pipe is shielded by the inner wall of the boring pipe. As a result, when the boring pipe penetrates the soil, the sampling pipe is enclosed within the boring pipe and does not come into contact with the external soil. When sampling is required at a certain depth, the sampling can be performed by driving the sampling plate toward the sampling hole using the first rotating member, and during sampling, the inner pipe is driven to protrude outward using the driving member. This reduces operation time and improves sampling efficiency.

[0017] 3. According to this engineering geological survey sampling device, when the number of sampling holes is the same as the number of pipe seats, the sampling table rotates to make each sampling pipe correspond to each sampling hole one-to-one. This provides another sampling method. When the boring pipe reaches the desired sampling depth, each sampling pipe is simultaneously aligned with the corresponding sampling hole, achieving multiple samplings at one time and improving sampling efficiency. In addition, the sampling positions are set circumferentially around the boring pipe to perform multiple samplings, thereby avoiding sampling errors that may occur when sampling at the same depth. [Brief explanation of the drawings]

[0018] In order to more clearly describe the embodiments of the present application or the technical solutions of the prior art, the drawings required in the embodiments are briefly described below. It is clear that the accompanying drawings in the following description are only some of the embodiments described in the present application, and those skilled in the art can obtain other drawings based on these drawings. [Figure 1] 1 is a schematic diagram of a partial structure of a boring pipe of an engineering geological survey sampling device provided by an embodiment of the present application. FIG. [Figure 2] 2 is a structural schematic diagram of one inner tube of FIG. 1 protruding from a sampling hole, according to an embodiment of the present application; [Figure 3] FIG. 2 is a schematic planar structure diagram of FIG. 1 provided by an embodiment of the present application. [Figure 4] FIG. 1 is a structural schematic diagram of the sampling tube after rotation (first included angle) provided by an embodiment of the present application. [Figure 5] 1 is a schematic diagram of a first gear provided by an embodiment of the present application, in which multiple first gears correspond to one tooth portion; [Figure 6] FIG. 10 is a schematic diagram of a case where the number of first gears is the same as the number of tooth portions, according to an embodiment of the present application. [Figure 7] FIG. 1 is a structural schematic diagram of a case where multiple sampling mechanisms are provided according to an embodiment of the present application. [Figure 8] FIG. 2 is a structural schematic diagram of an embodiment of the present invention in which an inner tube protrudes from an outer tube. [Figure 9] 1 is a structural schematic diagram of an embodiment of the present invention, in which a convex portion and a spiral groove are provided on an inner tube and an outer tube, respectively. [Figure 10] 1A and 1B are diagrams illustrating a state in which a first gear is in an inner toothed position and an outer toothed position, according to an embodiment of the present application; DETAILED DESCRIPTION OF THE INVENTION

[0019] In order to make those skilled in the art better understand the technical solutions of the present application, the present application will be described in further detail below in conjunction with the drawings.

[0020] 1 to 10, in the embodiment, the engineering geological survey sampling device includes a boring pipe 1 for drilling holes, and a sampling mechanism 2 is provided in the boring pipe 1, and the sampling mechanism 2 includes a sampling board 21, and the sampling board 21 is provided with at least two pipe seats 22 arranged in a circular array, and the pipe seats 22 are used to attach sampling pipes 23, and the sampling pipes 23 are composed of an outer pipe 231 and an inner pipe 232, and one side of the outer pipe 231 is provided with a driving member 27 for driving the inner pipe 232 to move in its axial direction, and the sampling board 21 is connected to a first rotating member 24 for driving it to rotate around the central axis of the boring pipe 1, and at least one sampling hole 25 is formed in the boring pipe 1, and when the sampling board 21 rotates, the sampling pipe 23 moves to the position of the sampling hole 25, and the driving member 27 drives the inner pipe 232 to protrude out of the sampling hole 25 for sampling.

[0021] In one embodiment of the present application, a specific example (not shown) of the driving member 27 is provided, which includes a reciprocating plunger mechanism, and the outer tube 231 communicates with the reciprocating plunger mechanism via an air supply tube 271, and the reciprocating plunger mechanism drives the inner tube 232 to move in the axial direction of the outer tube 231. The reciprocating plunger mechanism is a typical plunger pump, and drives the movement of the inner tube 232 by injecting or extracting fluid between the outer tube 231 and the inner tube 232. Since this method is conventional, the corresponding structure is not shown in the drawings.

[0022] In one embodiment of the present application, another specific example (not shown) of the driving member 27 is provided, which is an air cylinder, a hydraulic cylinder, or an electric telescopic rod, and the piston rod of the air cylinder, the piston rod of the hydraulic cylinder, or the telescopic rod of the electric telescopic rod passes through the outer tube 231 and is connected to the end of the inner tube 232, and the cylinder block of the air cylinder, the cylinder block of the hydraulic cylinder, or the cylinder block of the electric telescopic rod is attached to the end of the outer tube 231. This is also a conventional technique, so a detailed description thereof will be omitted here and it is not shown in the drawings.

[0023] In one embodiment of the present application, the first rotating member 24 includes a first motor 241, which is fixed to the inner wall of the boring pipe 1 via a mounting frame 242, and the output shaft of the first motor 241 is arranged coaxially with the boring pipe 1, and one end of the output shaft is fixedly connected to the center of the sampling board 21. The first motor 241 drives the sampling board 21 to rotate, thereby rotating the pipe seat 22 and the sampling pipe 23 thereon.

[0024] As shown in FIGS. 1 and 2, by controlling the rotation angle of the sampling table 21, when the sampling pipe 23 and the sampling hole 25 are misaligned, the opening at the position of the sampling pipe 23 is shielded by the inner wall of the boring pipe 1. As a result, when the boring pipe 1 penetrates into the soil, the sampling pipe 23 is closed inside the boring pipe 1 and does not come into contact with the external soil. When sampling is required at a certain depth, the sampling table 21 is driven by the first rotating member 24 to face the sampling hole 25, and during sampling, the inner pipe 232 is driven by the driving member 27 to protrude outward. The penetration of the boring pipe 1 is realized by a boring mechanism (not shown), which rotates the boring pipe 1 and moves it downward to penetrate into the soil, thereby performing sampling work at different depths in cooperation with the sampling mechanism 2.

[0025] In actual use, according to the sampling requirements, drilling pipes 1 with different numbers of sampling holes 25 can be selected, and the number of sampling holes 25 can be one or the same as the number of pipe seats 22.

[0026] In one embodiment of the present application, when there is only one sampling hole 25, the sampling table 21 can rotate to move each sampling pipe 23 to the position of the sampling hole 25 in sequence. As the depth of the boring pipe 1 changes, one or more samples can be taken at the same depth or at different depths, thereby achieving efficient and accurate soil sample collection. This design is flexible, versatile, and highly adaptable, and is suitable for various geological exploration needs.

[0027] In specific use, if a single sampling is required at different depths, after reaching different penetration depths, the sampling disk 21 can be rotated to match the position of the sampling hole 25 and the inner tube 232 can be driven to protrude, allowing the sampling tube 23 to enter the soil and collect samples. On the other hand, if multiple samplings are required at the same depth, the penetration can be paused at the same depth, and different sampling disks 21 can be repeatedly rotated to match the position of the sampling hole 25 and the inner tube 232 can be driven to protrude multiple times. The same applies to multiple samplings at different depths. This design not only improves the efficiency and accuracy of sampling, but also effectively avoids sample contamination and ensures the reliability of data, making it suitable for exploring complex geological conditions.

[0028] In one embodiment of the present application, when the number of sampling holes 25 is the same as the number of pipe seats 22, the sampling table 21 rotates to make each of the sampling pipes 23 correspond one-to-one to each of the sampling holes 25. This provides another sampling method, and when the boring pipe 1 reaches a desired sampling depth, each sampling pipe 23 is simultaneously aligned with the corresponding sampling hole 25, realizing multiple samplings at one time and improving sampling efficiency. In addition, since the sampling positions are set in the circumferential direction of the boring pipe 1 to perform multiple samplings, sampling errors that may occur when sampling at the same depth are avoided.

[0029] In one embodiment of the present application, the pipe seat 22 is rotatably attached to the sampling plate 21, and the pipe seat 22 is connected to a second rotating member 26 that drives it to rotate around its own axis, and when the sampling tube 23 is at the position of the sampling hole 25, the pipe seat 22 can rotate so that the axial direction of the sampling tube 23 and the first radial direction 4 of the sampling plate 21 form a first included angle 3, and the first radial direction 4 is the direction of the line connecting the center of the pipe seat 22 and the center of the sampling plate 21.

[0030] 4, the pipe seat 22 can flexibly adjust the angle of the sampling pipe 23 by driving the second rotating member 26. The advantage of this method is that when the inner pipe 232 cannot be directly cut into the pipe due to special conditions at the sampling position, the angle of the pipe seat 22 can be adjusted to allow the sampling pipe 23 to bypass the obstacle, ensuring smooth sampling and further improving the adaptability of the equipment and the accuracy of sampling.

[0031] This also provides another sampling method, in which after stopping penetration at a certain depth, the boring pipe 1 can continue to rotate around its axis, and by adjusting the angle of the sampling pipe 23 (first included angle 3), the inner pipe 232 of the sampling pipe 23 can be protruded a certain distance outside the boring pipe 1. As the boring pipe 1 continues to rotate, the opening of the inner pipe 232 will scrape, continuing to sample along the soil layer, and sampling can be achieved by the continuous protrusion of the inner pipe 232. This effectively expands the sampling range, ensures the comprehensiveness and representativeness of the sampling, reduces redundant operations, and improves work efficiency.

[0032] In one embodiment of the present application, the angle of the first included angle 3 is 0° to 60°. When it is 0°, the inner pipe 232 protrudes in the radial direction of the sampling board 21. When rotated to 60°, the inner pipe 232 protrudes and can scrape soil at the sampling position as the boring pipe 1 rotates, and the larger the angle, the better the scraping effect. Note that if the angle is too large, the length of the outer pipe 231 will be limited.

[0033] In one embodiment of the present application, one specific example of the second rotating member 26 includes an annular frame 261 at the bottom of the sampling board 21, the annular frame 261 is fixedly connected to the inner wall of the boring pipe 1 via a plurality of connecting rods 262, a first rotating shaft 263 is fixedly connected to the bottom of the pipe seat 22, the first rotating shaft 263 is rotatably connected to the inner wall of the sampling board 21 through the sampling board 21, a first gear 264 is fixedly connected to the bottom of the first rotating shaft 263, and a tooth portion 265 that can mesh with the first gear 264 is provided on the inside of the annular frame 261.

[0034] As shown in FIGS. 5 and 6, the position of the tooth portion 265 is set according to the position of the sampling hole 25, and based on the above embodiment, this can be specifically divided into two methods.

[0035] According to the first method, when there is one sampling hole 25, there is also one toothed portion 265. When one of the pipe seats 22 moves to the position of the sampling hole 25 during rotation of the sampling table 21, the toothed portion 265 engages with the first gear 264. At the start of the engagement, the first included angle 3 is 0°. In this case, driving the inner pipe 232 to protrude outward allows for radial sampling. As the sampling table 21 continues to rotate with the toothed portion 265 and the first gear 264 engaged, the first gear 264 rotates accordingly, gradually moving the pipe seat 22 and the sampling pipe 23 away from the radial direction to form the desired first included angle 3, thereby achieving angle adjustment. At this time, the boring pipe 1 may stop rotating to perform sampling, or it may continue rotating and scrape the opening of the inner pipe 232 along the soil layer to perform sampling. To meet the requirements for sampling at different depths, the above procedure can be followed.

[0036] According to the second method, when there are multiple sampling holes 25, the number of teeth 265 increases accordingly so that each tooth 265 corresponds to the position of one sampling hole 25. The principle is the same as the first method, but the difference is that when each tooth 265 and each first gear 264 mesh, the angles of each sampling tube 23 are adjusted synchronously.

[0037] The first gear 264 and the toothed portion 265 have a transmission ratio that allows the sampling hole 25 to correspond to the required protruding direction of the sampling pipe 23. That is, in the process of changing the first included angle 3, this transmission ratio ensures that the protruding direction of the sampling pipe 23 and the position of the sampling hole 25 are precisely aligned, so that sampling can be performed through the sampling hole 25 when the inner pipe 232 protrudes. If the first included angle 3 is relatively large, the protruding direction of the inner pipe 232 will be offset from the center of the sampling hole 25. Therefore, by forming the sampling hole 25 as an oval hole on the surface of the boring pipe 1, it is possible to ensure that the sampling pipe 23 can smoothly pass through the sampling hole 25 at different angles, as shown in Figures 3 and 4.

[0038] In one embodiment of the present application, according to another specific example (not shown) of the second rotating member 26, a second motor is connected to the bottom of the first rotating shaft 263, and the second motor drives the first rotating shaft 263 to rotate, and further directly drives the tube seat 22 and the sampling tube 23 connected thereto to adjust the angle.

[0039] 10, when the first gear 264 and the toothed portion 265 are not engaged, the first gear 264 is in a rotatable state, and in order to prevent the first gear 264 from rotating excessively due to inertia during the rotation of the boring pipe 1, when the first gear 264 rotates in an area other than the toothed portion 265, two adjacent teeth of the first gear 264 slide on the inner surface of the annular frame 261. This prevents the first gear 264 from rotating when moving in other areas.

[0040] 8 and 9, in one embodiment of the present application, a convex portion 233 is provided at one end of the inner pipe 232 close to the center of the sampling disk 21, and a spiral groove 234 that is slidably connected to the convex portion 233 is formed on the inner wall of the outer pipe 231, so that the inner pipe 232 can rotate around its central axis when moving in the axial direction of the outer pipe 231. When the inner pipe 232 is pushed outward to sample, the rotation of the inner pipe 232 reduces frictional resistance with the soil, thereby improving sampling efficiency.

[0041] In one embodiment of the present application, as shown in Fig. 7, a plurality of the sampling mechanisms 2 are provided and arranged in an array in the axial direction of the boring pipe 1. Each sampling mechanism 2 is independently controlled, and the sampling position and depth can be flexibly adjusted according to the requirements of different soil layers.

[0042] The above describes some exemplary embodiments of the present application, and of course, those skilled in the art can modify the described embodiments in various different ways without departing from the spirit and scope of the present application. Therefore, the above drawings and descriptions are exemplary in nature and should not be construed as limiting the protection scope of the present application. [Explanation of symbols]

[0043] 1. Boring Pipe 2. Sampling mechanism 21 Sampling Album 22 Tube seat 23 Sampling tube 231 Outer tube 232 Inner tube 233 Convex 234 Spiral groove 24 first rotating member 241 First Motor 242 Mounting Frame 25 sampling holes 26 Second rotating member 261 Annular Frame 262 Connecting rod 263 First Rotation Axis 264 First Gear 265 Tooth 27 Driving member 271 Air pipe 3 First included angle 4 First Radial

Claims

1. The drilling system includes a boring pipe (1) for drilling holes, and a sampling mechanism (2) is provided in the boring pipe (1). The sampling mechanism (2) includes a sampling board (21). The sampling board (21) is provided with at least two pipe seats (22) arranged in a circular array. The pipe seats (22) are used to attach sampling pipes (23). The sampling pipes (23) are composed of an outer pipe (231) and an inner pipe (232). One side of the outer pipe (231) is provided with a drive shaft (233) for moving the inner pipe (232) in its axial direction. a driving member (27) for driving the sampling table (21) to rotate around the central axis of the boring pipe (1); the sampling table (21) is connected to a first rotating member (24) for driving the sampling table (21) to rotate around the central axis of the boring pipe (1); at least one sampling hole (25) is formed in the boring pipe (1); when the sampling table (21) rotates, the sampling pipe (23) moves to the position of the sampling hole (25), and the driving member (27) drives the inner pipe (232) to protrude out of the sampling hole (25) for sampling. A construction geological survey sampling device characterized by:

2. The number of the sampling holes (25) is one, and the sampling disk (21) rotates to move each of the sampling tubes (23) sequentially to the position of the sampling hole (25).

2. The sampling device for construction geological surveying according to claim 1.

3. The number of the sampling holes (25) is the same as the number of the pipe seats (22), and the sampling disk (21) rotates to place each of the sampling pipes (23) in one-to-one correspondence with each of the sampling holes (25).

2. The sampling device for construction geological surveying according to claim 1.

4. The tube seat (22) is rotatably attached to the sampling table (21), and the tube seat (22) is connected to a second rotating member (26) that drives the tube seat (22) to rotate about its own axis; When the sampling pipe (23) is located at the position of the sampling hole (25), the pipe seat (22) can rotate so that the axial direction of the sampling pipe (23) and a first radial direction (4) of the sampling disc (21) form a first included angle (3), and the first radial direction (4) is the direction of a line connecting the center of the pipe seat (22) and the center of the sampling disc (21).

4. A sampling device for geological surveying for construction work according to claim 2 or 3.

5. The first included angle (3) is between 0° and 60°; 5. The sampling device for construction geological surveying according to claim 4.

6. The second rotating member (26) includes an annular frame (261) at the bottom of the sampling board (21), the annular frame (261) is fixedly connected to the inner wall of the boring pipe (1) via a plurality of connecting rods (262), a first rotating shaft (263) is fixedly connected to the bottom of the pipe seat (22), the first rotating shaft (263) is rotatably connected to the inner wall of the sampling board (21) through the sampling board (21), a first gear (264) is fixedly connected to the bottom of the first rotating shaft (263), and a toothed portion (265) that can mesh with the first gear (264) is provided on the inside of the annular frame (261).

5. The sampling device for construction geological surveying according to claim 4.

7. A convex portion (233) is provided at one end of the inner pipe (232) close to the center of the sampling disk (21), and a spiral groove (234) is formed on the inner wall of the outer pipe (231) so as to be slidably connected to the convex portion (233), so that the inner pipe (232) can rotate around its central axis when moving in the axial direction of the outer pipe (231).

2. The sampling device for construction geological surveying according to claim 1.

8. The sampling mechanism (2) is provided in plurality and arranged in an array in the axial direction of the boring pipe (1).

2. The sampling device for construction geological surveying according to claim 1.

9. The first rotating member (24) includes a first motor (241), the first motor (241) is fixed to the inner wall of the boring pipe (1) via a mounting frame (242), the output shaft of the first motor (241) is arranged coaxially with the boring pipe (1), and one end of the output shaft is fixedly connected to the center of the sampling board (21).

2. The sampling device for construction geological surveying according to claim 1.

10. When the first gear (264) rotates in an area other than the toothed portion (265), two adjacent teeth of the first gear (264) slide on the inner surface of the annular frame (261).

7. A sampling device for geological surveying for construction work according to claim 6.

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