Sampling device for geotechnical engineering investigation
By designing the sliding mechanism of the twisted dragon sampling cylinder and feeding plate, the problem of mixed geotechnical samples in geotechnical survey is solved, high-precision geotechnical sampling and separation is achieved, and the accuracy and convenience of survey results are improved.
Patent Information
- Application Number
- CN202421892678.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-06
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-08-06
AI Technical Summary
During the sampling process of existing geotechnical survey and sampling devices, the sampling port is always opened, resulting in geotechnical mixed at different depths, resulting in low sampling accuracy.
A geotechnical engineering survey and sampling device was designed, using a twisted dragon sampling cylinder, feeding plate and sliding mechanism. Through the sliding of feeding plate and the design of the umbrella plate, the separation and collection of geotechnical samples at different depths are achieved to avoid mixing.
The sampling accuracy is improved, ensuring that the geotechnical samples at different depths are not mixed, and the accuracy and convenience of survey results are improved.
Smart Images
Figure CN223272206U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of geotechnical engineering technology, and in particular to a geotechnical engineering survey and sampling device. Background Art
[0002] Civil engineering encompasses all types of engineering work above ground, underground, and underwater. Geotechnical engineering, the part of civil engineering involving rock, soil, underground, and underwater, addresses rock and soil engineering problems, including foundations, slopes, and underground engineering. With the development of diverse construction companies and the removal of barriers to cross-regional operations, the geotechnical engineering market has become fully competitive.
[0003] During geotechnical engineering surveys, the composition of the ground surface needs to be analyzed, which necessitates sampling and analysis of soil layers at different depths. However, while existing geotechnical survey sampling devices can sample while drilling, the sampling port remains open during the sampling process. This results in the mixing of soil layers at different depths, making them difficult to distinguish and ultimately leading to low sampling accuracy. Utility Model Content
[0004] In order to improve the situation in the prior art whereby geotechnical survey sampling devices obtain samples mixed with geotechnical samples of different depths during geotechnical sampling, resulting in low accuracy of the final results of the sampling test, the present application provides a geotechnical engineering survey sampling device.
[0005] The present application provides a geotechnical engineering survey sampling device that adopts the following technical solution:
[0006] The top end face of said sliding arm is fixedly provided with a toothed connecting strip which is cooperatively connected with said toothed connecting strip.
[0007] By adopting the above technical solution, the rotating rod rotates under the drive of the first motor, and the rotating rod and the auger wrapped around the rotating rod are extended into the rock and soil layer below the device to drill and sample. During this process, the sliding mechanism drives the receiving plate to slide on the sampling tube to the bottom of the receiving trough. At this time, the rock and soil sample extracted from the sampling port will fly onto the umbrella-shaped plate and then slide to the bottom of the installation tube. After the rotating rod reaches the selected rock and soil layer, the sliding mechanism will drive the receiving plate to rise to the top of the receiving trough. At this time, the rock and soil sample extracted from the sampling port will fall into the receiving trough and then enter the sampling chamber, successfully collecting the rock and soil sample of the selected rock and soil layer. This can effectively improve the sampling accuracy of the device and avoid mixing of rock and soil samples from different rock and soil layers.
[0008] Optionally, the sliding mechanism includes a plurality of screw barrels integrally arranged on the material receiving barrel along the circumferential direction, and a plurality of screw rods respectively threadedly inserted into the plurality of screw barrels. The same end of the plurality of screw rods passes through the top end of the mounting barrel and is respectively connected to a plurality of second motors fixedly installed on the top end of the mounting barrel.
[0009] By adopting the above technical solution, several second motors rotate and drive the screw to rotate. Since the screw barrel on the receiving barrel is threadedly connected to the screw, the rotation of the screw will also drive the receiving barrel to move in the vertical direction. The operation is simple, and the receiving barrel can partially block the sampling port to prevent the rock and soil sample of the selected depth from falling into the bottom of the rotating barrel when there is a rock and soil sample in the sampling port.
[0010] Optionally, one end of the sampling port is communicated with the top end of the inner side of the mounting cylinder, and the length of the sampling port along the axial direction of the sampling cylinder is less than half the length of the sampling cylinder along the axial direction.
[0011] By adopting the above technical solution, the interior of the installation cylinder can have a larger space for holding invalid soil samples. At the same time, it can also prevent the invalid soil samples from flying into the interior of the receiving trough when they slide off the receiving plate, which ultimately leads to the rock and soil samples in the sampling chamber being mixed with soil samples of different depths, thereby reducing the accuracy of the survey results.
[0012] Optionally, the material receiving trough is located in the middle of the mounting tube along the axial direction of the mounting tube.
[0013] By adopting the above technical solution, the material receiving trough is located at the bottom of the mounting tube, which makes the upper end part of the sampling tube a useless structure, which will not only increase the unnecessary consumption of the equipment, but also increase the falling stroke of the soil sample obtained at the selected depth. In this process, part of the soil sample may enter the bottom of the mounting tube below the material receiving trough, resulting in invalid collection. If the material receiving trough is set too high, when the equipment collects too many target soil samples per unit time, resulting in exceeding the carrying capacity of the material receiving trough, the target soil sample will be squeezed into the space below the material receiving trough in the mounting tube.
[0014] Optionally, the distance between one radial end of the material receiving trough and the top end of the mounting tube is smaller than the distance between the opposite radial end of the material receiving trough and the top end of the mounting tube, and the sampling chamber is located at the end where the distance between the material receiving trough and the top end of the mounting tube is larger.
[0015] By adopting the above technical solution, the receiving trough is installed on the inner wall of the mounting cylinder at an angle. When the soil sample is discharged from the sampling port and falls into the inside of the receiving trough through the umbrella-shaped plate, the soil sample can slide smoothly into the sampling bin connected to the receiving trough under the action of gravity, so as to facilitate the staff to sample and test the soil sample, thereby avoiding the need for the staff to install a sweeping device at the receiving trough position to successfully sample, thereby enhancing the convenience of sampling during geotechnical exploration sampling.
[0016] Optionally, the material receiving trough includes a first sampling trough and a second sampling trough that are integrally connected, the first sampling trough is located above the second sampling trough, and a plurality of sieve holes for filtering large-particle soil samples are provided at the bottom of the first sampling trough, and the sampling bin includes a first sample bin and a second sample bin that are integrally connected and communicated with the first sampling trough and the second sampling trough respectively.
[0017] By adopting the above technical solution, the soil quality of the soil samples taken from the selected depth can be refined to avoid some larger soil particles and stones from mixing into the soil samples to be tested, which would hinder the results of soil sample testing. It also facilitates the classification and testing of samples.
[0018] Optionally, the support frame is threaded with support columns with tapered bottoms near the four corners and pads fixed on the support columns, and the pads are arranged on the support columns on the side of the fixing frame away from the mounting tube.
[0019] By adopting the above technical solution, the support frame is threadedly connected to the support column, so that the height of the support frame can be adjusted at any time. At the same time, the purpose of installing a pad on the support column is to improve the stability of the entire device during operation.
[0020] Optionally, the end of the rotating rod away from the first motor is a conical structure, and the end of the conical structure of the rotating rod is connected to the auger.
[0021] By adopting the above technical solution, the conical structure of the end of the rotating rod close to the ground can make it more convenient for the rotating rod to extend into the ground during operation, so that the staff can smoothly collect and test soil samples at a selected depth on the ground, reducing the energy consumption of the rotating rod during the digging process of the device.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. This application designs a new internal structure of a geotechnical engineering survey sampling device, which can prevent soil samples from different depths from mixing together during the drilling sampling process, resulting in errors in the survey results;
[0024] 2. By setting up the first sampling trough and the second sampling trough, the present application can screen the soil samples obtained at the selected depth, thereby improving the accuracy of soil sample detection and exploration. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] Figure 1 This is an overall structural view of a geotechnical engineering survey and sampling device of the present application.
[0026] Figure 2 yes Figure 1 Cross-sectional view at AA in the middle.
[0027] Figure 3 This is an exploded schematic diagram of the internal structure of the installation tube of a geotechnical engineering survey and sampling device of the present application.
[0028] Figure 4 This is an overall structural view of a material receiving plate of a geotechnical engineering survey and sampling device of the present application.
[0029] Figure 5 This is an overall cross-sectional view of the installation tube of a geotechnical engineering survey and sampling device of the present application.
[0030] Figure 6 yes Figure 5 Magnified view of point A in the middle.
[0031] Explanation of the accompanying symbols: 1. Support frame; 11. Support column; 111. Pad; 2. Mounting cylinder; 21. Waste port; 3. Sampling cylinder; 31. Sampling port; 4. First motor; 5. Rotating rod; 51. Auger; 6. Material receiving plate; 61. Material receiving cylinder; 62. Umbrella-shaped plate; 7. Material receiving trough; 71. First sampling trough; 711. Sieve hole; 72. Second sampling trough; 8. Sampling chamber; 81. First sample chamber; 82. Second sample chamber; 9. Sliding mechanism; 91. Screw barrel; 92. Second motor; 93. Screw. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-6 This application is described in further detail.
[0033] The embodiments of the present application disclose a geotechnical engineering survey and sampling device.
[0034] Reference Figure 1 and Figure 5 A geotechnical engineering survey sampling device includes a support frame 1 placed on the ground, a mounting tube 2 fixedly mounted on the support frame 1 with its axis perpendicular to the horizontal plane of the support frame 1, a sampling tube 3 fixedly mounted within the mounting tube 2 along its axis and with its ends fixedly connected to the upper and lower ends of the mounting tube 2, and a first motor 4 fixedly mounted at the upper end of the mounting tube 2 along its axis, with its output shaft extending into the sampling tube 3. The lower end of the mounting tube 2 is an arc-shaped structure, and a waste port 21 is formed through the lower end of the arc-shaped structure for discharging invalid soil samples to the outside of the device.
[0035] Preferably, support columns 11 are threadedly installed near the four corners of the support frame 1 to facilitate adjusting the height of the support frame 1. At the same time, the support columns 11 are integrally installed with pads 111 away from the lower end of the support frame 1 to make the device more stable during operation.
[0036] Reference Figure 2 and Figure 3 Furthermore, the output shaft end of the first motor 4 is fixedly connected to a rotating rod 5 coaxial with the sampling barrel 3. An auger 51 is helically wound around the rotating rod 5. The auger 51 slides with the sampling barrel 3 to facilitate transferring soil samples into the mounting barrel 2. The sampling barrel 3 is provided with a plurality of sampling ports 31 along its circumference, and a material receiving plate 6 is slidably mounted on the sampling barrel 3 at the positions of the sampling ports 31.
[0037] Preferably, the end of the rotating rod 5 away from the first motor 4 is a conical structure, so that soil sample collection and drilling of the rotating rod 5 are more convenient.
[0038] Reference Figure 3 and Figure 4Specifically, the receiving plate 6 includes a receiving barrel 61 that is slidably mounted on the sampling barrel 3, and an umbrella-shaped plate 62 that is integrally connected to the end of the receiving barrel 61 that is away from the first motor 4. The lower end of the umbrella-shaped plate 62 is close to the bottom of the mounting barrel 2. When the receiving plate 6 slides at the sampling port 31 on the sampling barrel 3, the height at which the soil sample in the sampling barrel 3 is discharged from the sampling barrel 3 can be changed, thereby achieving separation of soil samples at different depths.
[0039] Reference Figure 2 and Figure 3 A sliding mechanism 9 for driving the receiving plate 6 to slide is fixedly provided on the receiving plate 6. The sliding mechanism 9 specifically includes a plurality of screw barrels 91 integrally arranged on the side wall of the receiving barrel 61 along the circumferential direction, a plurality of second motors 92 installed on the upper end of the mounting barrel 2, and a plurality of screw rods 93 corresponding to the plurality of screw barrels 91 one by one and threadedly penetrated into the interior of the screw barrel 91. The same end of the plurality of screw rods 93 is connected to the second motor 92.
[0040] Preferably, one side of the sampling port 31 is flush with the upper end of the inner side of the mounting tube 2, so as to maximize the use of the space inside the mounting tube 2 and facilitate the collection of soil samples at the target soil depth. In this application, there are three sampling ports 31, which are evenly distributed at the upper end of the sampling tube 3.
[0041] Reference Figure 5 and Figure 6 A ring-shaped receiving trough 7 for collecting soil samples at a selected depth is fixedly provided on the inner wall of the mounting tube 2. The receiving trough 7 is arranged at an angle within the mounting tube 2 so that the soil in the receiving trough 7 can be collected more conveniently. The end of the receiving trough 7 near the bottom of the mounting tube 2 is connected to the outside of the mounting tube 2, and a sampling chamber 8 for holding the required soil sample is provided on the mounting tube 2 at the connection position.
[0042] Reference Figure 3 and Figure 5 Furthermore, the inner ring of the receiving trough 7 slides with the umbrella-shaped plate 62, and the distance between the receiving trough 7 and the bottom of the mounting tube 2 is less than the distance between the sampling port 31 and the bottom of the mounting tube 2. When an invalid soil sample is collected, the receiving plate 6 is positioned below the receiving trough 7. The invalid soil sample is then spilled from the sampling port 31 onto the umbrella-shaped plate 62 and falls below the mounting tube 2. When collecting soil samples at a selected depth, the receiving plate 6 is positioned above the receiving trough 7, and the soil sample falls into the receiving trough 7.
[0043] Reference Figure 2 and Figure 5 Furthermore, the material receiving trough 7 is located in the middle of the mounting cylinder 2 along the axial direction, so that the material receiving plate 6 can have a larger moving stroke, reducing the ratio of soil samples of different depths mixed together, and also making the material receiving trough 7 have a larger inclination amplitude, thereby improving the material receiving capacity of the material receiving trough 7.
[0044] Reference Figure 6 The receiving trough 7 includes an integrally connected first sampling trough 71 and a second sampling trough 72 located below the first sampling trough 71. The bottom of the first sampling trough 71 is provided with a plurality of sieve holes 711 to facilitate filtering of large particles of soil sample. The sampling chamber 8 is similarly divided into two upper and lower chambers: a first sampling chamber 81 and a second sampling chamber 82. The first sampling chamber 81 and the second sampling chamber 82 are connected to the first sampling trough 71 and the second sampling chamber 72, respectively.
[0045] The implementation principle of a geotechnical engineering survey sampling device in the embodiment of the present application is as follows:
[0046] First, the support columns at the four corners of the support frame 1 are adjusted through threaded connections, so that the bottom sides of the four pads 111 contact the ground. Then, the first motor 4 drives the rotating rod 5 to drill a hole, and the auger 51 transports the soil sample into the installation cylinder 2. Finally, the soil sample is discharged from the sampling port 31 on the sampling cylinder 3.
[0047] At this time, if the soil sample is invalid, the second motor 92 will drive the receiving plate 6 downward, and the soil sample will fall onto the umbrella-shaped plate 62 and then fall into the bottom of the mounting cylinder 2. If the soil sample is valid, the second motor 92 will drive the receiving plate 6 upward to the top of the receiving trough 7, and the soil sample will pass through the umbrella-shaped plate 62 and enter the receiving trough 7.
[0048] The soil sample entering the receiving trough 7 will fall into the sampling chamber 8 under gravity, making it convenient for the staff to conduct sampling investigation. In this process, the soil sample will be sieved into two parts, large and small particles, during the movement, so that the staff can subdivide the investigation.
[0049] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A geotechnical engineering survey sampling device, comprising a support frame (1), a mounting tube (2) disposed on the support frame (1) and having a waste opening (21) at the bottom, a sampling tube (3) disposed along an axis within the mounting tube (2), and a first motor (4) mounted on the top of the support frame (1), wherein the output shaft of the first motor (4) is connected to a rotating rod (5) wound with an auger (51), and the auger (51) is rotatably engaged in the sampling tube (3), characterized in that: The upper end of the sampling tube (3) is uniformly provided with a plurality of sampling ports (31) along the circumference. The sampling tube (3) is slidably sleeved with a material receiving plate (6). The material receiving plate (6) comprises an integrally connected material receiving tube (61) and an umbrella-shaped plate (62). The length of the material receiving tube (61) is greater than the length of the sampling port (31). A sliding mechanism (9) for driving the material receiving plate (6) is provided on the mounting tube (2). An annular material receiving groove (7) is fixedly installed on the inner wall of the mounting tube (2) along the circumference. A sampling chamber (8) connected to the material receiving groove (7) is provided on the side wall of the mounting tube (2). The inner ring of the material receiving groove (7) is slidably matched with the umbrella-shaped plate (62). The distance between the material receiving groove (7) and the bottom of the mounting tube (2) is less than the distance between the sampling port (31) and the bottom of the mounting tube (2).
2. A geotechnical engineering survey sampling device according to claim 1, characterized in that: The sliding mechanism (9) comprises a plurality of screw barrels (91) integrally arranged on the receiving barrel (61) along the circumferential direction, and a plurality of screw rods (93) respectively threadedly inserted into the plurality of screw barrels (91). The same ends of the plurality of screw rods (93) all pass through the top end of the mounting barrel (2) and are respectively connected to a plurality of second motors (92) fixedly installed on the top end of the mounting barrel (2).
3. The geotechnical engineering survey sampling device according to claim 1, characterized in that: One end of the sampling port (31) is communicated with the top end of the inner side of the mounting cylinder (2), and the length of the sampling port (31) along the axial direction of the sampling cylinder (3) is less than half the length of the sampling cylinder (3) along the axial direction.
4. A geotechnical engineering survey sampling device according to claim 1, characterized in that: The material receiving groove (7) is located in the middle of the installation cylinder (2) along the axis direction of the installation cylinder (2).
5. The geotechnical engineering survey sampling device according to claim 1, characterized in that: The distance between one end of the receiving trough (7) along the radial direction of the mounting cylinder (2) and the top end of the mounting cylinder (2) is smaller than the distance between the opposite end of the receiving trough (7) along the radial direction of the mounting cylinder (2) and the top end of the mounting cylinder (2), and the sampling chamber (8) is located at the end where the distance between the receiving trough (7) and the top end of the mounting cylinder (2) is larger.
6. The geotechnical engineering survey sampling device according to claim 1, characterized in that: The receiving trough (7) comprises a first sampling trough (71) and a second sampling trough (72) which are integrally connected, the first sampling trough (71) being located above the second sampling trough (72), and a plurality of sieve holes (711) for filtering large-particle soil samples are provided at the bottom of the first sampling trough (71), and the sampling bin (8) comprises a first sampling bin (81) and a second sampling bin (82) which are integrally connected and communicate with the first sampling trough (71) and the second sampling trough (72), respectively.
7. The geotechnical engineering survey sampling device according to claim 1, characterized in that: The support frame (1) is provided with support columns (11) with tapered bottom ends and pads (111) fixedly arranged on the support columns (11) through threads near the four corners. The pads (111) are arranged on the support columns (11) on a side of the support frame (1) away from the mounting tube (2).
8. The geotechnical engineering survey sampling device according to claim 1, characterized in that: The end of the rotating rod (5) away from the first motor (4) is a conical structure, and the end of the conical structure of the rotating rod (5) is connected to the auger (51).