Stable sampling device for geotechnical investigation

Abstract

The utility model relates to the technical field of exploration sampling, and discloses a stable geotechnical exploration sampling device. The sampling device comprises a fixing frame, a driving device is fixedly connected to the top of the fixing frame, a lifting disc is movably connected to the outer side of the driving device, a sampling barrel is movably connected to the lower portion of the lifting disc, and a fixing device is movably connected to the lower portion of the interior of the fixing frame; according to the sampling device, the fixing device is arranged, so that the stability of the sampling device during use is facilitated, a second stud can rotate by screwing a screwing block, the lifting frame descends through rotation, and then a telescopic nail can be transversely inserted into the ground, so that the fixing frame is more stable and cannot be easily inclined and toppled due to vibration; manual pressing is not needed, the labor force is reduced, the driving device, the lifting disc and the sampling barrel are arranged, sampling soil in the sampling barrel can be discharged, the sampling soil in the sampling barrel can be ejected out, and discharging of the sampling soil is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of survey and sampling, and more specifically to a stable rock and soil survey and sampling device. Background Art

[0002] Geotechnical engineering investigation is the foundation of engineering construction. If the investigation is not thorough, adverse engineering geology problems will be revealed, and even the best-designed and constructed superstructures will inevitably suffer damage. Geotechnical engineering investigation methods or technical means mainly include engineering geological mapping, drilling and sampling, in-situ testing, and indoor testing. Drilling and sampling are the most direct means of geotechnical investigation.

[0003] Existing geotechnical survey and sampling devices generate significant vibrations during use, which can easily cause the device to tilt or even fall, leading to damage and hindering the progress of survey work. Manual pressure is required to ensure stable operation of the device. Prolonged pressure can easily cause fatigue to the user and increase labor. Utility model patent publication number CN221667308U discloses a stable geotechnical survey and sampling device, which includes a survey and sampling device body, which includes a workbench, a support frame, a sampling device, and a stabilizing structure. The stabilizing structure includes support feet, a conical stabilizing rod, and a stabilizing rod. The addition of the stabilizing structure can enhance the stability of the device during sampling, eliminating the need for manual support and pressure for stabilization, saving manpower and costs. However, the stabilizing structure of the patent is achieved by inserting the conical stabilizing rod into the soil layer. As long as vertical force is applied, the stabilizing effect is poor and the device will still tilt when vibrating. In addition, after sampling, the soil sample in the sampling tube of the existing sampling device is difficult to remove and difficult to remove completely. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a stable geotechnical exploration and sampling device. When the exploration device is fixed, the force in both vertical and horizontal directions is applied to ensure that the fixing frame is more stable, so that the device will not tilt or fall over due to the vibration generated during operation, and no manual pressing is required, which can reduce labor.

[0005] The top of the fixing device is fixedly connected to the driving device, the outer side of the driving device is threadedly connected to the lifting plate, and the lower end of the lifting plate is movably connected to the fixing device. The fixing device is provided with at least two groups, and each group of fixing devices includes a pressure plate, an inner side of the pressure plate, a fixing pin, an inner side of the fixing pin movably connected to a second stud, the top of the second stud is fixedly connected to a screw block, and the lower side of the outer side of the second stud is threadedly connected to the lifting frame, the outer side of the lifting frame is movably connected to a telescopic nail, and a frame groove is provided below the inner side of the fixing pin; a transverse through hole matching the telescopic nail is provided on the side wall of the frame groove, the lifting frame is movably placed in the frame groove, and the telescopic nail is correspondingly embedded in the transverse through hole, and when the lifting frame moves downward along the frame groove, the telescopic nail extends out of the fixing pin through the transverse through hole.

[0006] The better technical solution of the utility model is as follows: the fixed frame includes a fixed plate, and at least two groups of L-shaped brackets are fixedly connected to the lower part of the fixed plate, and the at least two groups of L-shaped brackets are evenly distributed on the fixed plate in a ring shape with the lifting plate as the center, the horizontal support plate at the bottom of each group of brackets faces outward, and a through groove matching the fixing pin is provided on the horizontal support plate, and a limiting groove is vertically provided on the vertical support plate of each group of brackets, and the outer wall of the lifting plate is correspondingly provided with a connecting block matching the number of brackets, and each connecting block is correspondingly embedded in the limiting groove and can slide up and down along the limiting groove.

[0007] The better technical solution of the utility model is as follows: the driving device includes a motor, the output end of the motor is fixedly connected to a first stud, the lower part of the first stud is fixedly connected to a cross block, the lower end of the cross block is fixedly connected to a connecting column, and the lower end of the connecting column is fixedly connected to a top block; the sampling cylinder includes a cylinder body, a sampling groove is provided at the lower part of the cylinder body, and a lifting groove is provided at the upper part of the cylinder body, and the structure of the lifting groove is the same as that of the cross block.

[0008] The better technical solution of the utility model is as follows: the lifting frame includes an upper plate, the interior of the upper plate is provided with a screw groove, the lower part of the upper plate is fixedly connected to multiple groups of inclined frames, and the multiple groups of inclined frames are evenly distributed on the bottom surface of the upper plate in a ring shape, the top of each group of inclined frames is connected to the edge of the upper plate, and the lower end is inclined toward the center of the upper plate, and the lower ends of the multiple groups of inclined frames are connected as a whole at the position of the center line of the upper plate, and a sliding hole is provided on the inclined surface of each group of inclined frames. The number of the telescopic nails is the same as the number of the oblique frames, and the side walls of the frame groove are correspondingly provided with horizontal through holes with the same number as the telescopic nails. The tail end of each telescopic nail is slidably connected to the sliding groove on the corresponding oblique frame through a slider, and the tip is inserted into the corresponding horizontal through hole, and when the lifting frame slides downward, multiple telescopic nails extend out of the fixing pins at the same time.

[0009] A better technical solution of the present invention is that the brackets are provided with four groups, and a handle is fixedly connected to the top of the fixed plate.

[0010] A better technical solution of the present utility model is as follows: the lifting plate includes a plate body, the outer side of the plate body is fixedly connected to a connecting block, the connecting block is slidably connected to the fixing frame, and the plate body is threadedly connected to the first stud.

[0011] The better technical solution of the present invention is as follows: a limit block is fixedly provided on the outer wall of the upper plate, a vertical slide groove is correspondingly opened on the inner wall of the frame groove, and the limit block is slidably connected to the vertical slide groove.

[0012] Technical effects and advantages of this utility model:

[0013] (1) The present invention is advantageous in improving the stability of the sampling device when in use by providing a fixing device. When in use, the fixing frame is placed on the ground and the sampling tube is aligned with the sampling point to be sampled. The fixing pin is pushed into the ground by pressing or knocking the pressure plate on the fixing device. Then the screw block is twisted to rotate the second stud. A thread is provided below the outer side of the second stud, and the thread is adapted to the screw groove. The lifting frame can be lifted and lowered by rotating the second stud in different directions. The slide groove is arranged obliquely downward so that the lifting frame can move downward to push the telescopic nail to move in the slide groove, and at the same time, the telescopic nail can be extended from the inside of the fixing pin, so that the telescopic nail can be inserted into the soil horizontally, so that the fixing frame can be more stable, so that the device will not be easily tilted or overturned due to the vibration generated during operation, and no manual pressing is required, which reduces labor.

[0014] (2) The utility model is provided with a driving device, a lifting plate and a sampling tube, which is conducive to discharging the sampled soil in the sampling tube. By starting the motor, the first stud can be rotated. The interior of the lifting plate is provided with a screw hole adapted to the first stud. The first stud is rotated and rotated in different directions so that the lifting plate can be lifted and lowered, thereby driving the sampling tube so that it can be inserted into the ground. When the first stud is rotated, the cross block can be driven to rotate, thereby driving the sampling tube to rotate at the bottom of the plate body, thereby making it easier to insert into the ground, facilitating sampling. After the sampling is completed, the fixing device is pulled out, and then the sampling tube is pulled out. By rotating the first stud in the opposite direction, the lifting plate can be raised, thereby raising the sampling tube. During the rise, the sampling soil in the sampling tube can be pushed out due to the restriction of the top block, thereby facilitating the discharge of the sampled soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2This is a schematic structural diagram of the fixing frame cross section, the entire driving device, the lifting plate cross section and the sampling tube cross section of the present invention.

[0017] Figure 3 This is a schematic diagram of the overall cross-section structure of the fixing device of the present invention.

[0018] Figure 4 This is a schematic diagram of the overall structure of the lifting frame of the present utility model.

[0019] Figure 5 This is a schematic diagram of the connection structure between the lifting frame and the telescopic nail of the utility model.

[0020] The accompanying drawings are marked as follows: 1. fixing frame; 101. fixing plate; 102. bracket; 103. limiting groove; 104. through groove; 105. handle; 2. driving device; 201. motor; 202. first stud; 203. cross block; 204. connecting column; 205. top block; 3. lifting plate; 301. plate body; 302. connecting block; 4. sampling cylinder; 401. cylinder body; 402. sampling slot; 403. lifting slot; 5. fixing device; 501. pressure plate; 502. screw block; 503. fixing pin; 504. second stud; 505. lifting frame; 5051. upper plate; 5052. limiting block; 5053. inclined frame; 5054. screw groove; 5055. sliding hole; 506. telescopic nail; 507. frame slot; 508. horizontal through hole. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the drawings in the present invention. In addition, the forms of the various structures described in the following embodiments are merely examples. The stable geotechnical exploration and sampling device involved in the present invention is not limited to the various structures described in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] The embodiment provides a stable geotechnical survey sampling device, such as Figures 1 to 5As shown, it includes a fixing frame 1, the top of the fixing frame 1 is fixedly connected to a driving device 2, the outer side of the driving device 2 is threadedly connected to a lifting plate 3, and the lower part of the lifting plate 3 is movably connected to a sampling tube 4; the fixing frame 1 includes a fixing plate 101, the lower part of the fixing plate 101 is fixedly connected to four groups of L-shaped brackets 102, the four groups of L-shaped brackets 102 are evenly distributed on the fixing plate 101 in a ring shape with the lifting plate 3 as the center, the horizontal support plate at the bottom of each group of brackets 102 faces outward, and the horizontal support plate of each group of brackets 102 is movably connected to a fixing device 5, the fixing device 5 includes a pressure plate 501, the inner side of the pressure plate 501 is fixedly connected to a fixing pin 503, and the inner side of the fixing pin 503 is movably connected to a second stud 504, The top of the second stud 504 is fixedly connected to a screw block 502, and the lower outer side of the second stud 504 is threadedly connected to a lifting frame 505, and the outer side of the lifting frame 505 is movably connected to a telescopic nail 506. A frame groove 507 is provided at the lower inside of the fixing pin 503, and the lower end of the fixing pin 503 is a sharp cone to ensure that the fixing pin 503 can be easily inserted into the soil. A through groove 104 matching the fixing pin 503 is provided on the horizontal support plate of each group of brackets 2, and the through groove 104 is used for the passing installation of the fixing pin 503; when in use, the fixing frame 1 is placed on the ground and the sampling tube 4 is aligned with the sampling point to be sampled, and the fixing pin 503 is inserted into the soil layer through the through groove 105 by pressing or knocking the pressure plate 501 on the fixing device 5.

[0023] The embodiment provides a stable geotechnical survey sampling device, such as Figures 3 to 5 As shown, the lifting frame 505 includes an upper plate 5051, and a screw groove 5054 is provided inside the upper plate 5051. The lower part of the upper plate 5051 is fixedly connected to multiple groups of inclined frames 5053, and the multiple groups of inclined frames 5053 are evenly distributed in a ring shape on the bottom surface of the upper plate 5051. The top of each group of inclined frames 5053 is connected to the edge of the upper plate 5051, and the lower end is inclined toward the center of the upper plate 5051. The lower ends of the multiple groups of inclined frames 5053 are connected as a whole at the position of the center line of the upper plate 5051, and a sliding hole 5055 is opened on the inclined surface of each group of inclined frames 5053. The number of telescopic pins 506 matches the number of diagonal brackets 5053. The sidewalls of the bracket slot 507 are provided with transverse through-holes 508, the same number as the telescopic pins 506. The tail end of each telescopic pin 506 is slidably connected to the corresponding slide slot on the diagonal bracket 5053 via a slider, with the tip inserted into the corresponding transverse through-hole 508. When the lifting bracket 505 slides downward, multiple telescopic pins 506 simultaneously extend out of the fixed pin 503. The sliding hole 5055 is a T-shaped notch, and the end of the telescopic pin 506 connected to it fits into the T-shaped notch, ensuring that the telescopic pin 506 will not fall out of the sliding hole 5055.

[0024] Twisting the screw block 502 causes the second stud 504 to rotate. A thread is provided below the outer side of the second stud 504, and a screw groove 5054 is adapted to the thread. Rotation of the second stud 504 in different directions allows the lifting frame 505 to be raised and lowered. The slide groove 5055 is arranged obliquely downward, so that downward movement of the lifting frame 505 pushes the telescopic nail 506 to move within the slide groove 5055. This also allows the telescopic nail 506 to extend from the interior of the fixing pin 503, allowing the telescopic nail 506 to be inserted horizontally into the soil, thereby making the fixing frame 1 more stable and preventing the device from tilting or falling due to vibrations generated during operation. Manual pressing is also unnecessary, reducing labor. A stop block 5052 is fixedly provided on the outer wall of the upper plate 5051, and a vertical slide groove is correspondingly provided on the inner wall of the frame groove 507. The stop block 5052 is slidably connected to the vertical slide groove, ensuring that the lifting frame 505 can move stably within the frame groove 507.

[0025] The embodiment provides a stable geotechnical survey sampling device, such as Figures 1 to 5 As shown, the driving device 2 includes a motor 201, the output end of the motor 201 is fixedly connected to a first stud 202, the lower part of the first stud 202 is fixedly connected to a cross block 203, the lower end of the cross block 203 is fixedly connected to a connecting column 204, the lower end of the connecting column 204 is fixedly connected to a top block 205, the rotation of the cross block 203 can drive the sampling barrel 4 to rotate, and the cross block 203 can be lifted and lowered inside the sampling barrel 4, the connecting column 204 passes through the barrel body 401 and can be lifted and lowered and rotated inside the barrel body 401, and the top block 205 can be lifted and lowered and rotated inside the barrel body 401. The lifting plate 3 includes a plate body 301, and a handle 105 is fixedly connected to the top of the fixed plate 101. The plate body 301 is threadedly connected to the first stud 202, and the lifting and lowering of the plate body 301 is controlled by the first stud 202; a limiting groove 103 is vertically provided on the vertical support plate of each group of brackets 102, and the outer wall of the plate body 301 is correspondingly provided with a connecting block 302 matching the number of brackets 102, each connecting block 302 is correspondingly embedded in the limiting groove 103 and can slide up and down along the limiting groove 103, and the limiting groove 103 is used to prevent the lifting plate 3 from rotating, ensuring that the lifting plate 3 can be lifted and lowered normally, and a notch for the sampling tube 4 to rotate is provided at the bottom of the plate body 301. The sampling tube 4 includes a tube body 401, a sampling slot 402 is provided at the lower part of the inside of the tube body 401, and a lifting slot 403 is provided at the upper part of the inside of the tube body 401. The structure of the lifting slot 403 is the same as that of the cross block 203. The lifting slot 403 is used to lift and lower the cross block 203, and when the cross block 203 rotates, it can drive the tube body 401 to rotate.

[0026] By starting the motor 201, the first stud 202 can be rotated, and the interior of the lifting plate 3 is provided with a screw hole that is compatible with the first stud 202. The first stud 202 is rotated and rotated in different directions to enable the lifting plate 3 to be lifted and lowered, thereby driving the sampling tube 4 so that it can be inserted into the ground. When the first stud 202 rotates, it can drive the cross block 203 to rotate, thereby driving the sampling tube 4 to rotate at the bottom of the plate body 301, thereby making it easier to insert into the ground, facilitating sampling. After the sampling is completed, the fixing device 5 is pulled out, and then the sampling tube 4 is pulled out. By rotating the first stud 202 in the opposite direction, the lifting plate 3 can be raised, thereby raising the sampling tube 4. During the rise, due to the restriction of the top block 205, the sampled soil in the sampling tube 4 can be pushed out, facilitating the discharge of the sampled soil.

[0027] The working principle of the present invention is as follows: when in use, the fixing frame 1 is placed on the ground and the sampling tube 4 is aligned with the sampling point to be sampled, and the fixing pin 503 is inserted into the ground by pressing or knocking the pressure plate 501 on the fixing device 5, and then the second stud 504 is rotated by twisting the screw block 502, and the rotation in different directions enables the lifting frame 505 to be raised and lowered, and the slide groove 5055 is set obliquely downward, so that the lifting frame 505 moves downward to push the telescopic nail 506 to move in the slide groove 5055, and at the same time, the telescopic nail 506 can extend from the inside of the fixing pin 503, so that the telescopic nail 506 can be inserted into the soil horizontally, so that the fixing frame 1 can be more stable, so that the device will not be easily tilted and dumped due to the vibration generated during operation, and no manual pressing is required, which reduces labor. After the fixation is completed, the power is started The machine 201 enables the first stud 202 to rotate, and the rotation in different directions enables the lifting plate 3 to be lifted and lowered, thereby driving the sampling tube 4 so that it can be inserted into the ground, and when the first stud 202 rotates, it can drive the cross block 203 to rotate, thereby driving the sampling tube 4 to rotate at the bottom of the plate body 301, thereby making it easier to insert into the ground, facilitating sampling. After the sampling is completed, the retractable nail 506 can be retracted into the fixing pin 503 by twisting the screw block 502 in the opposite direction, thereby making the fixing device 5 easy to pull out, and then the sampling tube 4 can be pulled out, and the lifting plate 3 can be raised by rotating the first stud 202 in the opposite direction, thereby raising the sampling tube 4. During the rise, the sampled soil in the sampling tube 4 can be pushed out due to the restriction of the top block 205, thereby facilitating the discharge of the sampled soil.

[0028] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense, and may refer to mechanical or electrical connections, internal communication between two components, or direct connection. "Up," "down," "left," and "right" are only used to indicate relative positional relationships. When the absolute positions of the objects being described change, the relative positional relationships may also change.

[0029] Secondly: The drawings of the embodiments disclosed in this utility model only involve structures related to the embodiments disclosed in this utility model. Other structures can refer to common designs. In the absence of conflicts, the same embodiment and different embodiments of the utility model can be combined with each other.

[0030] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A stable geotechnical exploration sampling device, comprising a fixed frame (1), characterized in that: The top of the fixing frame (1) is fixedly connected to a driving device (2), the outer side of the driving device (2) is threadedly connected to a lifting plate (3), the lower part of the lifting plate (3) is movably connected to a sampling tube (4), the bottom of the fixing frame (1) is movably connected to a fixing device (5), and the fixing device (5) is provided with at least two groups, each group of fixing devices includes a pressure plate (501), the inner side of the pressure plate (501) is fixedly connected to a fixing pin (503), the interior of the fixing pin (503) is movably connected to a second stud (504), the top of the second stud (504) is fixedly connected to a screw block (502), and the second stud (504) is fixedly connected to a screw block (502). A lifting frame (505) is threadedly connected to the lower portion of the outer side of the column (504), and a telescopic nail (506) is movably connected to the outer side of the lifting frame (505). A frame groove (507) is provided below the interior of the fixed pin (503), and a transverse through hole (508) matching the telescopic nail (506) is provided on the side wall of the frame groove (507). The lifting frame (505) is movably placed in the frame groove (507), and the telescopic nail (506) is correspondingly embedded in the transverse through hole (508). When the lifting frame (505) moves downward along the frame groove (507), the telescopic nail (506) extends out of the fixed pin (503) through the transverse through hole (508).

2. A stable geotechnical investigation and sampling device according to claim 1, characterized in that: The fixing frame (1) comprises a fixing plate (101), the lower part of which is fixedly connected with at least two groups of L-shaped brackets (102), the at least two groups of L-shaped brackets (102) being evenly distributed on the fixing plate (101) in a circular shape with the lifting plate (3) as the center, the horizontal support plate at the bottom of each group of brackets (102) facing outward, and a through groove (104) matching the fixing pin (503) is provided on the horizontal support plate, and a limiting groove (103) is vertically provided on the vertical support plate of each group of brackets (102), the outer wall of the lifting plate (3) is correspondingly provided with connecting blocks (302) matching the number of the brackets (102), each connecting block (302) is correspondingly embedded in the limiting groove (103) and can slide up and down along the limiting groove (103).

3. A stable geotechnical investigation and sampling device according to claim 1 or 2, characterized in that: The driving device (2) comprises a motor (201), the output end of the motor (201) is fixedly connected to a first stud (202), the lower part of the first stud (202) is fixedly connected to a cross block (203), the lower end of the cross block (203) is fixedly connected to a connecting column (204), and the lower end of the connecting column (204) is fixedly connected to a top block (205); the sampling cylinder (4) comprises a cylinder body (401), a sampling groove (402) is provided at the lower part of the cylinder body (401), and a lifting groove (403) is provided at the upper part of the cylinder body (401), and the structure of the lifting groove (403) matches the cross block (203).

4. A stable geotechnical investigation and sampling device according to claim 1 or 2, characterized in that: The lifting frame (505) includes an upper plate (5051), the interior of the upper plate (5051) is provided with a screw groove (5054), the lower part of the upper plate (5051) is fixedly connected to a plurality of inclined frames (5053), the plurality of inclined frames (5053) are evenly distributed in a ring shape on the bottom surface of the upper plate (5051), the top of each inclined frame (5053) is connected to the edge of the upper plate (5051), the lower end is inclined toward the center of the upper plate (5051), and the lower ends of the plurality of inclined frames (5053) are connected as a whole at the position of the center line of the upper plate (5051), and each group of inclined frames (5053) is connected to the center line of the upper plate (5051). A sliding hole (5055) is provided on the inclined surface of the inclined frame (5053), and the number of the telescopic pins (506) is the same as the number of the inclined frame (5053). The side wall of the frame groove (507) is correspondingly provided with a transverse through hole (508) which is the same as the number of the telescopic pins (506). The tail end of each telescopic pin (506) is slidably connected to the sliding groove on the corresponding inclined frame (5053) through a slider, and the tip is inserted into the corresponding transverse through hole (508). When the lifting frame (505) slides downward, multiple telescopic pins (506) are simultaneously extended out of the fixing pin (503).

5. The stable geotechnical investigation and sampling device according to claim 2, characterized in that: The brackets (102) are provided in four groups, and a handle (105) is fixedly connected to the top of the fixed plate (101).

6. The stable geotechnical investigation and sampling device according to claim 3, characterized in that: The lifting plate (3) comprises a plate body (301), a connecting block (302) is fixedly connected to the outer side of the plate body (301), the connecting block (302) is slidably connected to the fixing frame (1), and the plate body (301) is threadedly connected to the first stud (202).

7. The stable geotechnical investigation and sampling device according to claim 4, characterized in that: A limit block (5052) is fixedly provided on the outer wall of the upper plate (5051), and a vertical sliding groove is correspondingly provided on the inner wall of the frame groove (507), and the limit block (5052) is slidably connected to the vertical sliding groove.

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