Water conservancy and hydropower engineering foundation geotechnical test detection soil sampling device

Abstract

The utility model discloses a water conservancy and hydropower engineering foundation geotechnical test detection soil sampling device, and relates to the technical field of soil sampling devices. The upper end of the rotating cylinder extends into the limiting cylinder, the inner wall of the upper side of the fixing frame is fixedly connected with a sampling motor and an electric push rod, the output end of the sampling motor is fixedly connected with the upper end of the rotating cylinder, a soil outlet is formed in the side wall of the rotating cylinder, and the output end of the electric push rod is connected with a moving plate through a connecting plate, a connecting ring and a connecting block; and a lifting spiral sheet is arranged below the moving plate. During drilling operation, the lower end of the lifting spiral piece and the lower end of the sampling barrel are located on the same plane, the rotating barrel drives the rotating rod and the lifting spiral piece to rotate through the speed change mechanism, and soil in the sampling barrel is lifted to a soil outlet to be discharged through the lifting spiral piece while the sampling barrel is used for drilling; after a hole is drilled to a designated position, the lifting spiral piece is lifted to the position above the sampling barrel by utilizing the electric push rod, and then the sampling barrel is driven to rotate by utilizing the sampling motor again for sampling soil.

Description

Technical Field

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

[0002] Water conservancy and hydropower is an engineering science closely related to water and electricity. It is an engineering science that regulates and utilizes water energy resources through engineering or non-engineering measures based on the study of the natural characteristics of water. During the construction of water conservancy and hydropower projects, it is necessary to sample and test the soil and rock of the foundation to determine the construction plan and ensure the safety and stability of the construction.

[0003] Existing soil extraction operations often use auger drilling equipment to drill holes. After drilling to the designated location, the auger drilling equipment needs to be removed before sampling, which is a relatively cumbersome process.

[0004] Therefore, the present invention proposes a soil sampling device for testing and inspecting the foundation soil and rock of water conservancy and hydropower projects to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a soil sampling device for testing and inspecting the foundation soil and rock of water conservancy and hydropower projects, which solves the technical problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: It includes a rotating cylinder and a limiting cylinder. The upper end of the rotating cylinder extends into the limiting cylinder. A fixing frame is fixedly connected to the upper end of the limiting cylinder. A sampling motor is fixedly connected to the upper inner wall of the fixing frame. The output end of the sampling motor is fixedly connected to the upper end of the rotating cylinder. A soil outlet is provided on the side wall of the rotating cylinder. A movable plate is provided inside the rotating cylinder. A connecting ring is sleeved on the rotating cylinder. The movable plate is fixedly connected to the connecting ring via a connecting block passing through the soil outlet. A connecting plate is slidably connected to the outer end of the connecting ring via a limiting groove. An electric push rod is fixedly connected to the lower end of the fixing frame. The output end of the electric push rod is fixedly connected to the upper end of the connecting plate. A speed-changing mechanism is provided above the movable plate. A rotating rod is provided below the movable plate. A lifting spiral blade is fixedly connected to the outer wall of the rotating rod.

[0007] Preferably, a sampling tube is fixedly connected to the lower end of the rotating cylinder, and the lower end of the sampling tube has a serrated structure.

[0008] Preferably, the speed-changing mechanism includes a drive gear ring sleeve, a transmission gear, and a gear shaft. The drive gear ring sleeve is fixed to the inner wall of the rotating cylinder. A connecting rod is rotatably connected to the lower end of the transmission gear. The lower end of the connecting rod is fixedly connected to the top surface of the moving plate. The upper end of the rotating rod passes through the moving plate and is fixedly connected to the lower end of the gear shaft. The rotating rod is rotatably connected to the moving plate. The transmission gear is located between the gear shaft and the drive gear ring sleeve. Both the gear shaft and the drive gear ring sleeve mesh with the transmission gear.

[0009] Preferably, the inner and outer diameters of the rotating cylinder and the sampling cylinder are the same, and the inner wall of the rotating cylinder abuts against the outer end of the lifting spiral blade.

[0010] Preferably, a limiting ring is fitted onto the rotating cylinder, and an auxiliary plate is fixedly connected to the outer wall of the limiting ring. A limiting screw is fixedly connected to the upper end of the auxiliary plate.

[0011] Preferably, the upper end of the limiting screw passes through the connecting plate and is fixedly connected to a baffle.

[0012] Preferably, the limiting screw is threadedly connected to a limiting adjustment threaded tube, which is located below the connecting plate.

[0013] Preferably, a protective plate is fixedly connected to the lower end of the limiting cylinder.

[0014] Preferably, the limiting cylinder is rotatably connected to the rotating cylinder.

[0015] Preferably, two limiting handles are symmetrically fixedly connected to the outer wall of the limiting cylinder.

[0016] Compared with related technologies, the soil sampling device for testing and inspection of foundation soil and rock in water conservancy and hydropower projects provided by this utility model has the following beneficial effects:

[0017] 1. This utility model provides a soil sampling device for foundation soil testing in water conservancy and hydropower projects. The device utilizes a sampling motor to drive a rotating cylinder, which in turn utilizes the serrated structure at the lower end of the sampling cylinder to perform drilling operations. During drilling, an electric push rod pushes a connecting plate, connecting ring, and moving plate downwards. The device pauses when the lower end of the lifting spiral blade is on the same plane as the lower end of the sampling cylinder. Simultaneously, the rotating cylinder drives the rotating rod and lifting spiral blade to rotate via a speed-changing mechanism. While the sampling cylinder is drilling, the lifting spiral blade lifts the soil inside the sampling cylinder to the outlet for discharge. After drilling to the designated position, the electric push rod lifts the lifting spiral blade above the sampling cylinder, and the sampling motor drives the sampling cylinder to rotate again. This allows for sampling at the designated position without needing to remove the device.

[0018] 2. This utility model provides a soil sampling device for foundation soil testing in water conservancy and hydropower projects. A limit ring is provided on the outside of the rotating cylinder. When a specific sampling depth needs to be set, the limit adjustment threaded tube is rotated. By adjusting the distance between the limit adjustment threaded tube and the auxiliary plate, the distance between the upper end of the limit adjustment threaded tube and the connecting plate is adjusted. When the rotating cylinder is drilling, drilling can be paused when the upper end of the limit adjustment threaded tube abuts against the lower end of the connecting plate. Under the action of the electric push rod, the connecting plate and the lifting screw are lifted upwards. After adjustment, the distance between the upper end of the limit adjustment threaded tube and the lower end of the connecting plate is the sample thickness. The sampling cylinder is rotated again using the sampling motor, allowing sampling at the specified location to be completed without removing the device. When the upper end of the limit adjustment threaded tube abuts against the lower end of the connecting plate again, a sample of a certain thickness at the specified location is collected. At this point, the entire device is removed, and the connecting plate and the lifting screw are pushed downwards using the electric push rod. The lifting screw then pushes the soil sample from the lower end of the sampling cylinder. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a cross-sectional three-dimensional structural diagram of the present invention;

[0021] Figure 3 for Figure 2 Enlarged view of a portion of point A in the middle;

[0022] Figure 4 This is a three-dimensional structural diagram of the present invention from another angle;

[0023] Figure 5 for Figure 4 Enlarged view of a section at point B in the middle;

[0024] Figure 6 This is a three-dimensional cross-sectional view of another position of the present invention;

[0025] Figure 7 for Figure 6 Enlarged view of a section at point C.

[0026] In the diagram: 1. Rotating cylinder; 2. Sampling cylinder; 3. Limiting cylinder; 4. Limiting handle; 5. Fixing frame; 6. Sampling motor; 7. Protective plate; 8. Limiting ring; 9. Auxiliary plate; 10. Limiting screw; 11. Electric push rod; 12. Connecting rod; 13. Transmission gear; 14. Active gear ring sleeve; 15. Gear shaft; 16. Moving plate; 17. Rotating rod; 18. Lifting auger; 19. Exit port; 20. Connecting block; 21. Connecting ring; 22. Connecting plate; 23. Baffle; 24. Limiting adjustment threaded tube. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-7 This utility model provides a technical solution: a soil sampling device for foundation soil testing in water conservancy and hydropower projects, comprising a rotating cylinder 1 and a limiting cylinder 3. The upper end of the rotating cylinder 1 extends into the limiting cylinder 3. A fixing frame 5 is fixedly connected to the upper end of the limiting cylinder 3. A sampling motor 6 is fixedly connected to the upper inner wall of the fixing frame 5. The output end of the sampling motor 6 is fixedly connected to the upper end of the rotating cylinder 1. A soil outlet 19 is provided on the side wall of the rotating cylinder 1. A movable plate 16 is provided inside the rotating cylinder 1. A connecting plate is sleeved on the rotating cylinder 1. The connecting ring 21 is connected to the movable plate 16 via a connecting block 20 passing through the soil outlet 19. The outer end of the connecting ring 21 is slidably connected to the connecting plate 22 via a limiting groove. The lower end of the fixed frame 5 is fixedly connected to an electric push rod 11. The output end of the electric push rod 11 is fixedly connected to the upper end of the connecting plate 22. A speed change mechanism is provided above the movable plate 16. A rotating rod 17 is provided below the movable plate 16. A lifting spiral blade 18 is fixedly connected to the outer wall of the rotating rod 17.

[0029] Furthermore, the limiting cylinder 3 is rotatably connected to the rotating cylinder 1, and two limiting handles 4 are symmetrically fixedly connected to the outer side wall of the limiting cylinder 3.

[0030] Furthermore, a sampling cylinder 2 is fixedly connected to the lower end of the rotating cylinder 1, and the lower end of the sampling cylinder 2 has a serrated structure.

[0031] Furthermore, such as Figure 3As shown, the transmission mechanism includes a drive gear ring sleeve 14, a transmission gear 13, and a gear shaft 15. The drive gear ring sleeve 14 is fixed to the inner wall of the rotating cylinder 1. The lower end of the transmission gear 13 is rotatably connected to a connecting rod 12, the lower end of which is fixedly connected to the top surface of the moving plate 16. The upper end of a rotating rod 17 passes through the moving plate 16 and is fixedly connected to the lower end of the gear shaft 15. The rotating rod 17 is rotatably connected to the moving plate 16. The transmission gear 13 is located between the gear shaft 15 and the drive gear ring sleeve 14. Both the gear shaft 15 and the drive gear ring sleeve 14 mesh with the transmission gear 13. Both the gear shaft 15 and the drive gear ring sleeve 14 have a considerable height to ensure that the transmission gear 13 remains meshed with the gear shaft 15 and the drive gear ring sleeve 14 as it moves up and down with the moving plate 16. As the rotating cylinder 1 rotates, it drives the drive gear ring sleeve 14 to rotate. The drive gear ring sleeve 14 drives the gear shaft 15 through the transmission gear 13. 5. Rotation drives the rotating rod 17 and the lifting screw 18 to rotate, which can lift the soil inside the sampling tube 2 to the outlet 19 and discharge it while drilling. When the drilling reaches the designated position, the upper end of the limit adjustment threaded tube 24 abuts against the lower end of the connecting plate 22. Under the action of the electric push rod 11, the connecting plate 22 and the lifting screw 18 are lifted upward. At this time, the distance between the upper end of the limit adjustment threaded tube 24 and the lower end of the connecting plate 22 is the sample thickness. The sampling motor 6 drives the sampling tube 2 to rotate again, so that the sampling operation at the designated position can be completed without removing the device. When the upper end of the limit adjustment threaded tube 24 abuts against the lower end of the connecting plate 22 again, the sample collection of a certain thickness at the designated position is completed. At this time, the entire device is removed. The electric push rod 11 pushes the connecting plate 22 and the lifting screw 18 downward. The lifting screw 18 can push the soil sample in the sampling tube 2 out from the lower port of the sampling tube 2.

[0032] Furthermore, the inner and outer diameters of the rotating cylinder 1 and the sampling cylinder 2 are the same, and the inner wall of the rotating cylinder 1 abuts against the outer end of the lifting spiral blade 18, ensuring that the lifting spiral blade 18 can move stably in the vertical direction while the sampling cylinder 2 is being drilled.

[0033] Furthermore, such as Figure 5 and Figure 6 As shown, a limiting ring 8 is fitted on the rotating cylinder 1. An auxiliary plate 9 is fixedly connected to the outer wall of the limiting ring 8. A limiting screw 10 is fixedly connected to the upper end of the auxiliary plate 9. The upper end of the limiting screw 10 passes through the connecting plate 22 and is fixedly connected to a baffle 23. A limiting adjustment threaded tube 24 is threadedly connected to the limiting screw 10. The limiting adjustment threaded tube 24 is located below the connecting plate 22. The depth of the drilling is limited by the limiting ring 8. By adjusting the distance between the limiting adjustment threaded tube 24 and the auxiliary plate 9, the distance between the upper end of the limiting adjustment threaded tube 24 and the connecting plate 22 is adjusted.

[0034] Furthermore, a protective plate 7 is fixedly connected to the lower end of the limiting cylinder 3. During use, the protective plate 7 is located between the rotating cylinder 1 and the user, thereby preventing the high-speed rotating cylinder 1 from causing injury to the user.

[0035] Working principle: During use, the device is moved to the sampling location. The operator holds the limit handle 4 and rotates the limit adjustment threaded tube 24 when a specified sampling depth needs to be set. By adjusting the distance between the limit adjustment threaded tube 24 and the auxiliary plate 9, the distance between the upper end of the limit adjustment threaded tube 24 and the connecting plate 22 is adjusted. The electric push rod 11 pushes the connecting plate 22, the connecting ring 21, and the moving plate 16 downwards. The process stops when the lower end of the lifting spiral blade 18 is on the same plane as the lower end of the sampling cylinder 2. The sampling motor 6 is turned on, which drives the rotating cylinder 1 to rotate. When the rotating cylinder 1 rotates for drilling, it drives the rotating rod 17 and the lifting spiral blade 18 to rotate through the speed change mechanism. While the sampling cylinder 2 is drilling, the lifting spiral blade 18 lifts the soil in the sampling cylinder 2 to the outlet 19 for discharge. The drilling process... During drilling, due to soil obstruction, the limiting ring 8 drives the auxiliary plate 9 and the limiting screw 10 to rise. When the borehole reaches the designated position, the upper end of the limiting adjustment threaded tube 24 abuts against the lower end of the connecting plate 22. Under the action of the electric push rod 11, the connecting plate 22 and the lifting screw 18 are lifted upward. At this time, the distance between the upper end of the limiting adjustment threaded tube 24 and the lower end of the connecting plate 22 is the sample thickness. The sampling motor 6 drives the sampling cylinder 2 to rotate again, so that the sampling operation at the designated position can be completed without removing the device. When the upper end of the limiting adjustment threaded tube 24 abuts against the lower end of the connecting plate 22 again, the sample collection at the designated position with a certain thickness is completed. At this time, the entire device is removed, and the electric push rod 11 pushes the connecting plate 22 and the lifting screw 18 downward. The lifting screw 18 can push the soil sample in the sampling cylinder 2 out from the lower port of the sampling cylinder 2.

[0036] However, in actual use, there may be a problem of soil adhering to the inner wall of the sampling tube. Therefore, an anti-stick coating can be added to the inner wall of the sampling tube to ensure that the soil can be discharged smoothly.

[0037] The thrust and stroke of the electric linear actuator need to be appropriately selected based on the actual soil conditions to ensure smooth operation under different geological conditions. This selection is a well-known technique or common practice among those skilled in the art, and will not be described in detail here.

[0038] Components and structures not described in detail in this embodiment are well-known components, common structures or common methods in the industry, and will not be described one by one here.

Claims

1. A device for detecting soil sampling in geotechnical test of water conservancy and hydropower engineering foundation, comprising a rotating cylinder (1) and a limiting cylinder (3), characterized in that: The upper end of the rotating cylinder (1) extends into the limiting cylinder (3), the upper end of the limiting cylinder (3) is fixedly connected with a fixing frame (5), the upper side inner wall of the fixing frame (5) is fixedly connected with a sampling motor (6), the output end of the sampling motor (6) is fixedly connected with the upper end of the rotating cylinder (1), the side wall of the rotating cylinder (1) is provided with an unearthing opening (19), the rotating cylinder (1) is provided with a moving plate (16), the rotating cylinder (1) is provided with a connecting ring (21), the moving plate (16) is fixedly connected with the connecting ring (21) through a connecting block (20) penetrating through the unearthing opening (19), the outer side end of the connecting ring (21) is slidably connected with a connecting plate (22) through a limiting sliding groove, the lower end of the fixing frame (5) is fixedly connected with an electric push rod (11), the output end of the electric push rod (11) is fixedly connected with the upper end of the connecting plate (22), the upper side of the moving plate (16) is provided with a speed change mechanism, the lower side of the moving plate (16) is provided with a rotating rod (17), the outer side wall of the rotating rod (17) is fixedly connected with a lifting spiral piece (18).

2. The device according to claim 1, characterized in that: The lower end of the rotating cylinder (1) is fixedly connected with a sampling cylinder (2), and the lower end of the sampling cylinder (2) is in a sawtooth structure.

3. The device according to claim 1, characterized in that: The speed change mechanism comprises a driving gear ring sleeve (14), a transmission gear (13) and a gear shaft (15), the driving gear ring sleeve (14) is fixed on the inner side wall of the rotating cylinder (1), the lower end of the transmission gear (13) is rotatably connected with a connecting rod (12), the lower end of the connecting rod (12) is fixedly connected with the top surface of the moving plate (16), the upper end of the rotating rod (17) penetrates through the moving plate (16) and is fixedly connected with the lower end of the gear shaft (15), the rotating rod (17) is rotatably connected with the moving plate (16), the transmission gear (13) is located between the gear shaft (15) and the driving gear ring sleeve (14), and the gear shaft (15) and the driving gear ring sleeve (14) are in mesh with the transmission gear (13).

4. The device according to claim 2, characterized in that: The inner and outer diameters of the rotating cylinder (1) and the sampling cylinder (2) are the same, the inner side wall of the rotating cylinder (1) abuts against the outer side end of the lifting spiral piece (18).

5. The device according to claim 1, characterized in that: The rotating cylinder (1) is provided with a limiting ring (8), the outer side wall of the limiting ring (8) is fixedly connected with an auxiliary plate (9), and the upper end of the auxiliary plate (9) is fixedly connected with a limiting lead screw (10).

6. The device according to claim 5, characterized in that: The upper end of the limiting lead screw (10) penetrates through the connecting plate (22) and is fixedly connected with a baffle (23).

7. The device according to claim 6, characterized in that: The limiting lead screw (10) is threadedly connected with a limiting adjusting threaded tube (24), and the limiting adjusting threaded tube (24) is located below the connecting plate (22).

8. The device according to claim 1, characterized in that: The lower end of the limiting cylinder (3) is fixedly connected with a protection plate (7).

9. The device according to claim 1, characterized in that: The limiting cylinder (3) is rotatably connected with the rotating cylinder (1).

10. The device according to claim 1, characterized in that: The outer side wall of the limiting cylinder (3) is symmetrically fixedly connected with two limiting handles (4).

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