Drilling and soil sampling device for soil detection

Abstract

The utility model discloses a drilling soil sampling device for soil detection, which comprises a lifting plate, a lifting adjusting mechanism, an external rotation soil breaking mechanism and a mounting clamping mechanism, the lifting adjusting mechanism comprises a conical tooth assembly, a lead screw, a threaded plate, a bottom frame and a hinge lifting frame; the external rotation soil breaking mechanism comprises a conveying pipe, a lateral frame, a first motor, a second motor, an external rotation pipe, a transmission tooth assembly, an external rotation blade, a rotating shaft and a conveying blade, and stable lifting of a lifting plate is ensured through threaded fit of a bevel tooth assembly and a lead screw, so that the drilling depth is accurately controlled, high-precision control is provided for soil sampling, and the working efficiency is improved. The external rotation ground breaking mechanism effectively breaks ground by means of the rotation function of an external rotation pipe and external rotation blades, all assemblies can be rapidly connected and fixed through the design of a clamping pipe, a clamping rod, an external extension spring rod and the like of the installation clamping mechanism, and the detachability and maintenance convenience of the equipment are improved.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, and more specifically, it relates to a drilling soil sampling device for soil testing. Background Technology

[0002] Existing height adjustment systems for soil sampling boreholes generally suffer from design flaws. Traditional sampling devices often employ manual screw-lifting or hydraulic lifting systems, resulting in complex operation procedures that require multiple steps from the operator, increasing workload and time costs. This cumbersome adjustment method significantly reduces work efficiency, especially in field environments. Furthermore, existing devices often lack precise positioning mechanisms for height adjustment, making it difficult to accurately control sampling depth. This fails to meet the precision requirements of scientific research and testing when performing stratified sampling or sampling at specific depths, thus reducing the reliability of sampling data.

[0003] The existing soil sampling equipment has a simple drilling power system design with insufficient power. When encountering hard soil, semi-rock layers or soil layers containing a large amount of gravel, it often cannot penetrate effectively and may even lead to equipment damage. Traditional drill bits have a simple structure and lack professional design for soil layers of different hardness. They have low drilling efficiency in hard soil layers and are prone to passivation and wear, which greatly shortens the service life of the equipment.

[0004] Traditional sampling equipment often uses bolt and nut connections or complex snap-fit ​​systems, which require special tools and have many connection points. The disassembly and assembly process is cumbersome and time-consuming, especially in harsh field environments. Many connection mechanisms require high-precision alignment to complete the connection. In the field environment, factors such as dust and mud interfere with the operation, which greatly increases the difficulty and often requires multiple attempts to successfully connect. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a drilling soil sampling device for soil testing, which solves the technical problems mentioned in the background art, such as inconvenient height adjustment, difficulty in handling excessively hard soil layers, and inconvenience in installing and disassembling sampling components.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a soil sampling device for drilling, comprising a lifting plate, a lifting adjustment mechanism, an external rotation soil breaking mechanism, and an installation and clamping mechanism. The lifting adjustment mechanism includes a conical gear assembly, a lead screw, a threaded plate, a base frame, and a hinged frame. The conical gear assembly is installed at one end of the lead screw. The top and bottom ends of one side of the hinged frame are rotatably connected to the lifting plate and the base frame, and the top and bottom ends of the other side of the hinged frame are slidably connected to the lifting plate and the base frame. The threaded plate is installed on the hinged frame, and the lead screw is threadedly connected to the threaded plate. The external rotation soil breaking mechanism includes a conveying pipe, a side frame, a first motor, a second motor, an external rotation tube, a transmission gear assembly, an external rotation blade, a rotating shaft, and a conveying blade. The side frame is installed on the side of the conveying pipe, the rotating shaft is rotatably installed inside the conveying pipe, the conveying blade is installed on the rotating shaft, the external rotation tube is rotatably installed at one end of the conveying pipe, and one end of the rotating shaft extends into the external rotation tube. The second motor is installed on the side frame, the external rotation blade is installed on the outer wall of the external rotation tube, and the second motor is connected to the external rotation tube through the transmission gear assembly.

[0009] The present invention is further configured such that the mounting and snapping mechanism includes a snap-fit ​​tube, a snap-fit ​​rod, a movable frame, an outward spring rod, a locking groove, a threaded tube, and a misalignment plate. The movable frame is longitudinally slidably mounted on the inner and outer walls of the snap-fit ​​tube. The locking groove is disposed on the movable frame. The outward spring rod is mounted on the side wall of the snap-fit ​​rod and can extend into the locking groove to fix the snap-fit ​​rod inside the snap-fit ​​tube. The threaded tube is threadedly connected to the outer wall of the snap-fit ​​tube. The misalignment plate is installed between the movable frame and the threaded tube. Rotating the misalignment plate pushes the movable frame to move longitudinally, causing the side wall of the locking groove to press against the outward spring rod, causing the outward spring rod to retract into the snap-fit ​​rod.

[0010] The present invention is further configured such that a fixed wheel is installed at the bottom end of the base frame, and a lifting motor is installed on the side of the lifting plate. The lifting motor is connected to the bevel gear assembly. The fixed wheel is installed at the bottom of the base frame, providing good mobility. Its special braking function allows the equipment to be quickly fixed at any location to prevent displacement during operation.

[0011] The present invention is further configured such that a connecting plate is installed at the bottom end of the side wall of the clamping pipe, and the bottom end of the lifting plate is fixedly installed on the connecting plate. The collection box is installed at the top end of the mounting plate. The connecting plate fixes the clamping pipe to the bottom of the lifting plate, providing a stable installation foundation. Its structural design enhances the connection strength and prevents loosening and vibration during operation.

[0012] The present invention is further configured such that an mounting plate is installed on the side frame, and a snap-fit ​​rod is fixedly installed on the mounting plate. The snap-fit ​​rod can extend through the lifting plate and engage with the snap-fit ​​tube. The snap-fit ​​rod is installed on the mounting plate and can pass through the lifting plate to engage with the snap-fit ​​tube. Its material has high strength and its surface treatment is corrosion resistant, ensuring the reliability of long-term use.

[0013] The present invention is further configured such that a discharge pipe is installed on the side of the conveying pipe, and one end of the discharge pipe can lead to the collection box. The discharge pipe is installed on the side of the conveying pipe to form an output channel for soil samples. Its angle design allows the soil to flow smoothly to the collection box, reducing sample loss and pollution risk.

[0014] The present invention is further provided that a reset spring is installed between the connecting plate and the longitudinal frame, and the reset spring pushes the longitudinal frame to return to its initial position. The reset spring connects the connecting plate and the longitudinal frame, providing an automatic reset function, so that the longitudinal frame can return to its initial position after unlocking, which simplifies the operation process.

[0015] The present invention is further configured such that an opening groove is provided at the bottom end of the outer spiral tube, and a counterweight is installed at the top end of the lifting plate. The opening groove is located at the bottom of the outer spiral tube and serves as the inlet of the soil entry device. Its size and shape design ensure sufficient sampling volume.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, the present invention provides a soil sampling device for soil testing, which has the following advantages:

[0018] This invention features a lifting and adjusting mechanism. Through the threaded engagement of the bevel gear assembly and the lead screw, the lifting plate is raised and lowered smoothly, thereby precisely controlling the drilling depth. This provides high-precision control for soil sampling and improves the representativeness and reliability of soil samples.

[0019] This utility model is equipped with an external rotating soil breaking mechanism. Through the coordinated action of the external rotating tube, external rotating blade, and transmission gear assembly, the external rotating soil breaking mechanism can efficiently break the soil and guide the soil sample into the collection box through the delivery pipe. In particular, the design of the external rotating blade effectively reduces the resistance caused by soil hardness, improves the adaptability of the equipment under different soil conditions, and ensures the smoothness and efficiency of the sampling process.

[0020] This utility model is equipped with an installation snap-fit ​​mechanism, which enables the various components to be quickly connected and fixed, improving the disassembly and maintenance convenience of the equipment. The moving frame pushed by the misaligned frame can achieve precise locking and unlocking, ensuring reliable connection and stability during operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the device from the bottom view of this utility model;

[0023] Figure 3This is a schematic diagram of the external rotation soil-breaking mechanism in this utility model;

[0024] Figure 4 This is a schematic diagram of the mounting and snapping mechanism in this utility model;

[0025] Figure 5 This is a schematic diagram of the temporal part of the mounting clip mechanism in this utility model.

[0026] In the diagram: 1. Lifting plate; 2. Bevel gear assembly; 3. Lead screw; 4. Threaded plate; 5. Base frame; 6. Hinge frame; 7. Conveying pipe; 8. Side frame; 9. First motor; 10. Second motor; 11. External rotating pipe; 12. Transmission gear assembly; 13. External rotating blade; 14. Rotating shaft; 15. Conveying blade; 16. Clamping pipe; 17. Clamping rod; 18. Moving frame; 19. Outward extension spring rod; 20. Locking groove; 21. Threaded pipe; 22. Misalignment plate; 23. Fixed wheel; 24. Lifting motor; 25. Connecting plate; 26. Mounting plate; 27. Discharge pipe; 28. Return spring; 29. ​​Opening groove; 30. Counterweight. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5A soil sampling device for soil testing includes a lifting plate 1, a lifting adjustment mechanism, an external rotation soil breaking mechanism, and an installation and locking mechanism. The lifting adjustment mechanism includes a conical gear assembly 2, a lead screw 3, a threaded plate 4, a base frame 5, and a hinged frame 6. The conical gear assembly 2 is installed at one end of the lead screw 3. The top and bottom ends of one side of the hinged frame 6 are rotatably connected to the lifting plate 1 and the base frame 5, and the top and bottom ends of the other side of the hinged frame 6 are slidably connected to the lifting plate 1 and the base frame 5. The threaded plate 4 is installed on the hinged frame 6, and the lead screw 3 is threadedly connected to the threaded plate 4. The external rotation soil breaking mechanism includes... The system includes a conveying pipe 7, a side frame 8, a first motor 9, a second motor 10, an outer spiral pipe 11, a transmission gear assembly 12, an outer spiral blade 13, a rotating shaft 14, and a conveying blade 15. The side frame 8 is installed on the side of the conveying pipe 7. The rotating shaft 14 is rotatably installed inside the conveying pipe 7. The conveying blade 15 is installed on the rotating shaft 14. The outer spiral pipe 11 is rotatably installed at one end of the conveying pipe 7. One end of the rotating shaft 14 extends into the outer spiral pipe 11. The second motor 10 is installed on the side frame 8. The outer spiral blade 13 is installed on the outer wall of the outer spiral pipe 11. The second motor 10 is connected to the outer spiral pipe 11 through the transmission gear assembly 12.

[0031] In this embodiment, the lifting motor 24 on the side of the lifting plate 1 is activated. The lifting motor 24 drives the bevel gear assembly 2 to rotate, and the bevel gear assembly 2 drives the lead screw 3 to rotate. The threaded connection between the lead screw 3 and the threaded plate 4 causes the threaded plate 4 to move up and down. The threaded plate 4 drives the hinged frame 6 to move. Due to the hinged and sliding connection structure between the hinged frame 6 and the lifting plate 1 and the base frame 5, the movement of the hinged frame 6 ultimately realizes the lifting adjustment of the lifting plate 1. The brake wheel at the bottom of the base frame 5 provides stable support. The first motor 9 drives the rotating shaft 14 to rotate, and the rotating shaft 14 drives the conveying blade 15 to rotate, which is used to convey the soil upward. The second motor 10 drives the outer rotating tube 11 to rotate through the transmission gear assembly 12. The rotation of the outer rotating tube 11 drives the outer rotating blade 13 to rotate. The rotation of the outer rotating blade 13 breaks the soil and forms a hole. The broken soil is conveyed upward through the conveying blade 15 in the conveying pipe 7. The soil enters the collection box through the discharge pipe 27 on the side.

[0032] The mounting mechanism includes a locking tube 16, a locking rod 17, a movable frame 18, an extended spring rod 19, a locking groove 20, a threaded tube 21, and a misalignment plate 22. The movable frame 18 is longitudinally slidably mounted on the inner and outer walls of the locking tube 16. The locking groove 20 is set on the movable frame 18. The extended spring rod 19 is mounted on the side wall of the locking rod 17 and can extend into the locking groove 20 to fix the locking rod 17 in the locking tube 16. The threaded tube 21 is threadedly connected to the outer wall of the locking tube 16. The misalignment plate is installed between the movable frame 18 and the threaded tube 21. Rotating the misalignment plate pushes the movable frame 18 to move longitudinally, causing the side wall of the locking groove 20 to press against the extended spring rod 19, so that the extended spring rod 19 is retracted into the locking rod 17.

[0033] In this embodiment, the locking rod 17 extends into the locking tube 16, and the outward spring rod 19 on the side wall of the locking rod 17 extends into the locking groove 20, fixing the locking rod 17 in the locking tube 16. When separation is required, the threaded tube 21 is rotated, and the threaded tube 21 rotates to push the misalignment frame. The misalignment frame pushes the moving frame 18 to move longitudinally. The movement of the moving frame 18 causes the side wall of the locking groove 20 to press against the outward spring rod 19, and the outward spring rod 19 is compressed and retracted into the locking rod 17, releasing the locking. After separation, the return spring 28 pushes the longitudinal frame to return to its initial position.

[0034] Please see Figures 1-5 As a supplementary embodiment of a soil testing drilling and sampling device with a lifting adjustment mechanism, an external rotation soil breaking mechanism, and an installation and clamping mechanism: a fixed wheel 23 is installed at the bottom end of the base frame 5; a lifting motor 24 is installed on the side of the lifting plate 1, and the lifting motor 24 is connected to the bevel gear assembly 2; a connecting plate 25 is installed at the bottom end of the side wall of the clamping pipe 16, and the bottom end of the lifting plate 1 is fixedly installed on the connecting plate 25; a collection box is installed at the top end of the mounting plate 26; the mounting plate 26 is installed on the side frame 8, and the clamping rod 17 is fixedly installed on the mounting plate 26. The clamping rod 17 can extend through the lifting plate 1 and engage with the clamping pipe 16; a discharge pipe 27 is installed on the side of the conveying pipe 7, and one end of the discharge pipe 27 can lead to the collection box; a return spring 28 is installed between the connecting plate 25 and the longitudinal frame, and the return spring 28 pushes the longitudinal frame back to its initial position; an opening slot 29 is opened at the bottom end of the external rotation pipe 11, and a counterweight block 30 is installed at the top end of the lifting plate 1.

[0035] More specifically, the device is moved to the sampling position, the brake wheel of the base frame 5 ensures stability, the height of the outer rotating soil breaking mechanism is adjusted by the lifting adjustment mechanism, the counterweight 30 provides stability, the second motor 10 is started to drive the outer rotating tube 11 and the outer rotating blade 13 to rotate, breaking the soil to form a borehole, the first motor 9 is started to drive the rotating shaft 14 and the conveying blade 15 to rotate, and the broken soil is conveyed upward. The soil enters the collection box through the discharge pipe 27, and more soil samples are collected through the opening groove 29 at the bottom of the outer rotating tube 11. After the work is completed, the parts are separated by the installation snap-fit ​​mechanism for easy cleaning or replacement, and finally the device is restored to a position that is easy to move by the lifting adjustment mechanism.

[0036] In summary, when the overall equipment is in use or running: when the lifting and adjusting mechanism needs to be running, the lifting motor 24 on the side of the lifting plate 1 is started. The lifting motor 24 drives the bevel gear assembly 2 to rotate, the bevel gear assembly 2 drives the lead screw 3 to rotate, and the threaded connection between the lead screw 3 and the threaded plate 4 causes the threaded plate 4 to move up and down. The threaded plate 4 drives the hinged frame 6 to move. Due to the hinged and sliding connection structure between the hinged frame 6 and the lifting plate 1 and the base frame 5, the movement of the hinged frame 6 ultimately realizes the lifting and adjusting of the lifting plate 1. The brake wheel at the bottom of the base frame 5 provides stable support.

[0037] When the external rotating soil breaking mechanism is in operation, the first motor 9 drives the rotating shaft 14 to rotate, and the rotating shaft 14 drives the conveying blade 15 to rotate, which is used to transport the soil upward. The second motor 10 drives the external rotating tube 11 to rotate through the transmission gear assembly 12. The rotation of the external rotating tube 11 drives the external rotating blade 13 to rotate. The rotation of the external rotating blade 13 breaks the soil and forms a hole. The broken soil is transported upward through the conveying blade 15 in the conveying pipe 7. The soil enters the collection box through the discharge pipe 27 on the side.

[0038] When the snap-fit ​​mechanism is required for operation, it enables the installation and disassembly of the external rotating earth-breaking mechanism, facilitating maintenance and repair. The snap-fit ​​rod 17 extends into the snap-fit ​​tube 16, and the outward spring rod 19 on the side wall of the snap-fit ​​rod 17 extends into the locking groove 20, fixing the snap-fit ​​rod 17 in the snap-fit ​​tube 16. When separation is required, the threaded tube 21 is rotated, and the rotation of the threaded tube 21 pushes the misalignment frame, which in turn pushes the moving frame 18 to move longitudinally. The movement of the moving frame 18 causes the side wall of the locking groove 20 to press against the outward spring rod 19, compressing and retracting the outward spring rod 19 into the snap-fit ​​rod 17, thus releasing the snap-fit. After separation, the return spring 28 pushes the longitudinal frame back to its initial position.

[0039] Move the device to the sampling position. The brake wheel of the base frame 5 ensures stability. Adjust the height of the outer rotating soil breaking mechanism through the lifting adjustment mechanism. The counterweight 30 provides stability. Start the second motor 10 to drive the outer rotating tube 11 and the outer rotating blade 13 to rotate, breaking the soil to form a borehole. Start the first motor 9 to drive the rotating shaft 14 and the conveying blade 15 to rotate, conveying the broken soil upward. The soil enters the collection box through the discharge pipe 27. Collect more soil samples through the opening groove 29 at the bottom of the outer rotating tube 11. After the work is completed, use the installation snap-fit ​​mechanism to separate the parts for easy cleaning or replacement. Finally, use the lifting adjustment mechanism to restore the equipment to a position that is easy to move.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A soil sampling device for soil testing, comprising a lifting plate (1), a lifting adjustment mechanism, an external rotation soil breaking mechanism, and an installation and clamping mechanism, characterized in that: The lifting and adjusting mechanism includes a bevel gear assembly (2), a lead screw (3), a threaded plate (4), a base frame (5), and a hinged frame (6). The bevel gear assembly (2) is installed at one end of the lead screw (3). The top and bottom ends of one side of the hinged frame (6) are rotatably connected to the lifting plate (1) and the base frame (5). The threaded plate (4) is installed on the hinged frame (6). The lead screw (3) is threadedly connected to the threaded plate (4). The external rotation soil breaking mechanism includes a conveying pipe (7), a side frame (8), a first motor (9), a second motor (10), an external rotation pipe (11), and a transmission gear assembly (7). 12) Outer spiral blade (13), rotating shaft (14) and conveying blade (15), side frame (8) is installed on the side of conveying pipe (7), rotating shaft (14) is rotatably installed inside conveying pipe (7), conveying blade (15) is installed on rotating shaft (14), outer spiral tube (11) is rotatably installed on conveying pipe (7), rotating shaft (14) extends into outer spiral tube (11), second motor (10) is installed on side frame (8), outer spiral blade (13) is installed on outer wall of outer spiral tube (11), second motor (10) is connected to outer spiral tube (11) through transmission gear assembly (12).

2. The soil sampling device for soil testing according to claim 1, characterized in that: The mounting and snapping mechanism includes a snap-fit ​​tube (16), a snap-fit ​​rod (17), a movable frame (18), an extension spring rod (19), a locking groove (20), a threaded tube (21), and a misalignment plate (22). The movable frame (18) is longitudinally slidably mounted on the inner and outer walls of the snap-fit ​​tube (16). The locking groove (20) is set on the movable frame (18). The extension spring rod (19) is mounted on the side wall of the snap-fit ​​rod (17). The extension spring rod (19) can extend into the locking groove (20) to fix the snap-fit ​​rod (17) in the snap-fit ​​tube (16). The threaded tube (21) is threadedly connected to the outer wall of the snap-fit ​​tube (16). The misalignment plate is installed between the movable frame (18) and the threaded tube (21). Rotating the misalignment plate pushes the movable frame (18) to move longitudinally.

3. The soil sampling device for soil testing according to claim 1, characterized in that: The bottom end of the base frame (5) is equipped with a fixed wheel (23), and the side of the lifting plate (1) is equipped with a lifting motor (24), which is connected to the bevel gear assembly (2).

4. The soil sampling device for soil testing according to claim 2, characterized in that: A connecting plate (25) is installed at the bottom of the side wall of the card tube (16), and the bottom of the lifting plate (1) is fixedly installed on the connecting plate (25). The collection box is installed at the top of the mounting plate (26).

5. A soil sampling device for soil testing according to claim 4, characterized in that: The side frame (8) is equipped with an mounting plate (26), and the snap-fit ​​rod (17) is fixedly installed on the mounting plate (26). The snap-fit ​​rod (17) can extend through the lifting plate (1) and engage with the snap-fit ​​tube (16).

6. The soil sampling device for soil testing according to claim 1, characterized in that: The side of the conveying pipe (7) is provided with a discharge pipe (27), and one end of the discharge pipe (27) can be led to the collection box.

7. A soil sampling device for soil testing according to claim 4, characterized in that: A reset spring (28) is installed between the connecting plate (25) and the longitudinal frame, and the reset spring (28) pushes the longitudinal frame back to its initial position.

8. A soil sampling device for soil testing according to claim 1, characterized in that: The bottom end of the outer spiral tube (11) is provided with an opening groove (29), and the top end of the lifting plate (1) is provided with a counterweight (30).

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