A vertical lifting soil taking device

Abstract

The present application relates to soil sampling device technical field, and disclose a vertical lifting type soil sampling device, including: box, its lower end is provided with brake wheel for the structure installed in the box provides loading and moves the foundation; Soil sampling device, it is set up on the upper end of the box and extends to the preset soil sampling surface through the box, soil sampling device includes the hydraulic device set up on the upper end of the box, hydraulic device is connected with the soil sampling cylinder that is through to the box and opens the soil sampling channel in the box; Load device, it is set up in the box and establishes or removes the butt joint with soil sampling cylinder, load device includes the internal frame installed in the box, the internal frame is set up in the surrounding range and is movably provided with the material bucket for carrying and calculating the weight of material, the material bucket is connected with the drive structure that drives its movement. The present application solves the problem that the soil is disturbed in the lifting process, causes the soil loss and produces the low problem of the reserve.

Description

Technical Field

[0001] This invention relates to the field of soil sampling equipment technology, specifically a vertical lifting soil sampling device. Background Technology

[0002] During road construction, the roadbed primarily bears the pressure from vehicles on the road surface. If the quality of the roadbed is compromised, it will affect the road surface. Therefore, testing the hardness of the roadbed is essential during road construction.

[0003] Soil sampling is a crucial step in the roadbed hardness testing process. Currently, there are many types of undisturbed soil samplers available, such as thin-walled, thick-walled, and ring-cut samplers. Thin-walled samplers, with a wall thickness of only 1.25–2.00 mm, have a major drawback: after sampling, they often separate the sample soil from the underlying soil by pulling or twisting. This not only easily disturbs the sample but also causes the lower soil to detach, reducing the sampling ratio. Furthermore, when the sample is being extracted upwards, the friction between the soil sample and the tube wall maintains the sample, which also disturbs the sample. After the soil is brought to the surface, the process of pushing the sample out of the tube wall causes secondary disturbance due to the contact friction between the soil and the tube wall, resulting in soil loss and low retention. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a vertical lifting soil sampling device, which solves the problem of soil loss and low retention caused by soil disturbance during the lifting process.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vertical lifting soil extraction device, comprising:

[0006] The box body, with brake wheels at its lower end, provides a base for loading and moving structures installed inside the box body;

[0007] A soil sampling device is set at the top of the box and extends through the box to a preset soil sampling surface. The soil sampling device includes a hydraulic device set at the top of the box, and the hydraulic device is connected to a soil sampling cylinder that extends into the box and opens a soil sampling channel in the box.

[0008] A soil-carrying device is installed inside a box and establishes or disconnects from the soil-taking cylinder. The soil-carrying device includes an internal frame installed inside the box. Within the enclosure of the internal frame, a material bucket for bearing and measuring the weight of the material is movable. A drive structure for driving the movement of the material bucket is connected to the material bucket.

[0009] The soil-carrying device reciprocates at the lower end of the soil-taking device, and the positional relationship between the soil-taking cylinder and the material bucket, whether connected or misaligned, establishes a material transfer channel or a soil-taking channel for the preset soil-taking surface.

[0010] In a specific embodiment, the hydraulic device includes mounting plates symmetrically installed at the front and rear of the upper end of the box and hydraulic rods disposed between the two mounting plates, with the soil sampling cylinder disposed between the two hydraulic rods.

[0011] The soil sampling cylinder includes a pressure plate installed between two hydraulic rods, a pressure cylinder connected below the pressure plate, an inner cylinder rotatably arranged inside the pressure cylinder, a planetary gear structure that drives the inner cylinder to rotate relative to the pressure cylinder between the inner cylinder and the pressure cylinder, a pressure plate for increasing the density of the sampled soil is arranged at the lower end of the planetary gear structure, and several equidistant stirring rods are arranged at the lower end of the pressure plate along the direction of entry of the sampled soil.

[0012] A central shaft extends from the center of the pressure plate into the pressure cylinder. The pressure plate and the stirring rod are both mounted on the central shaft, and the cutting surface of the stirring rod ends at the inner wall of the inner cylinder.

[0013] In a specific embodiment, the lower end of the intermediate shaft is provided with a spiral cutter head and spiral blades to transport soil into the inner cylinder. The intermediate shaft protrudes from the structure of the pressure plate and is connected to a coupling. The intermediate shaft is connected to a drive motor through the coupling.

[0014] In a specific embodiment, the driving structure includes a second drive motor mounted on an internal frame structure. A cam is connected through the output shaft of the second drive motor. The cam has a first end and a second end. The diameter of the second end connected to the output shaft of the second drive motor is larger than that of the first end. The first end is away from the second end and moves in a circle around the second end. A connecting rod that extends downward and connects to the material bucket is connected to the first end.

[0015] In a specific embodiment, guide rails are installed on the symmetrical side walls of the internal frame, and protrusions are connected to the front and rear side walls of the material barrel, with the protrusions extending into the guide rails. The material barrel moves along the guide rails after being transmitted by the force of the connecting rod.

[0016] In a specific embodiment, an annular pressing plate is installed on the end cylinder surface of the pressing cylinder. The area of ​​the pressing plate is larger than the cross-sectional area of ​​the pressing cylinder. The pressing plate part of the structure protrudes from the outer edge of the pressing cylinder. A cutting head for determining the radial contour of the soil extraction is installed at the lower end of the inner cylinder.

[0017] In a specific embodiment, the top and bottom plates of the box are provided with slots adapted to the diameter of the pressure cylinder, and the height of the material barrel is less than the distance between the internal frame and the bottom plate of the box.

[0018] In a specific embodiment, the material bucket is described as having an open opening, with the diameter of the opening being larger than the diameter of the inner cylinder.

[0019] Compared with the prior art, the present invention provides a vertical lifting soil extraction device, which has the following beneficial effects:

[0020] In the technical solution disclosed in this invention, the soil sampling device and the soil carrying device are staggered to form a soil sampling device that can take soil from a preset soil sampling surface or place the taken soil into the soil carrying device, which effectively connects the material transmission. In addition, the soil sampling cylinder of the soil sampling device uses a section of spiral blade to transport the soil to the inner cylinder. After the soil sample enters the inner cylinder, the upper pressure plate compacts the soil and then lifts it vertically, thereby ensuring that the soil sample will not fall during the lifting process, thus enhancing the retention of the sample in the inner cylinder.

[0021] The pressure barrel proposed in this invention is controlled by a hydraulic mechanism to move vertically. The bottom of the pressure barrel is equipped with a pressing plate. When the pressing plate contacts the predetermined soil extraction surface, its own area and the vertical force applied by the hydraulic mechanism can position the predetermined soil extraction surface and protect the external roadbed. In addition, based on the inner cylinder, a gear ring is provided inside. The inner cylinder is driven to rotate by a drive motor driving a planetary gear structure. The bottom cutting blade is used to determine the radial profile of the soil extraction.

[0022] This invention proposes that the material bucket is controlled by a cam mechanism and a guide rail slider mechanism to move left and right. After docking with the outer cylinder, the material is transferred from the inner cylinder to the material bucket. Based on the material bucket having a weighing function, the volume of the collected material is preset to obtain a value, thereby enabling an intuitive estimation of the soil density at the sampling location. Attached Figure Description

[0023] Figure 1 This is an isometric schematic diagram of the overall structure of a vertical lifting soil sampling device according to the present invention;

[0024] Figure 2 This is a schematic diagram of the internal soil-carrying device structure of a vertical lifting soil-collecting device according to the present invention.

[0025] Figure 3 This is a schematic diagram of the hydraulic device and soil sampling cylinder structure of a vertical lifting soil sampling device according to the present invention;

[0026] Figure 4 This is a schematic diagram of the soil sampling cylinder structure of a vertical lifting soil sampling device according to the present invention;

[0027] Figure 5 This is a schematic diagram of the soil sampling channel structure of a vertical lifting soil sampling device according to the present invention;

[0028] Figure 6 This is a schematic diagram of the cam structure of a vertical lifting soil extraction device according to the present invention.

[0029] In the diagram: 1. Box body; 2. Brake wheel; 3. Soil sampling device; 31. Hydraulic device; 311. Mounting plate; 312. Hydraulic rod; 32. Soil sampling cylinder; 321. Pressure plate; 322. Pressure cylinder; 323. Inner cylinder; 324. Planetary gear structure; 325. Pressure plate; 326. Stirring rod; 327. Intermediate shaft; 328. Spiral blade; 329. Drive motor one; 3210. Pressing plate; 33. Soil sampling channel; 4. Soil carrying device; 41. Internal frame; 42. Material bucket; 43. Drive structure; 431. Drive motor two; 432. Cam; 433. First end; 434. Second end; 435. Connecting rod; 44. Guide rail slide; 45. Protrusion. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figures 1-6 The specific problem addressed by this invention is that roadbed hardness testing is essential during road construction. Soil sampling is a crucial step in the roadbed hardness testing process.

[0032] There are many types of undisturbed soil samplers currently in use, such as thin-walled samplers, thick-walled samplers, and ring cutter samplers. Among them, the wall thickness of thin-walled samplers is only 1.25-2.00 mm. However, the main problem with thin-walled samplers is that after sampling, they often use methods such as pulling or twisting to separate the sample soil from the bottom soil. This not only easily disturbs the sample but also easily causes the lower soil to fall off, reducing the sampling ratio. At the same time, when the sampler is extracting the sample upward, it relies entirely on the friction between the soil sample and the tube wall to maintain the soil sample, which also causes a certain degree of disturbance to the soil sample. After the soil is brought to the ground, the process of pushing the sample out of the tube wall will cause secondary disturbance to the soil due to the contact friction between the soil and the tube wall, resulting in soil loss and low retention. To address the issue of low soil sample retention caused by disturbance during soil sampling, this solution describes a vertical lifting soil sampling device. This device utilizes the staggered connection between the sampling device 3 and the carrying device 4 to allow the sampling device 3 to collect soil from a pre-set sampling surface or place the collected soil into the carrying device 4, effectively connecting material transport. Furthermore, the sampling cylinder 32 within the sampling device 3 uses a spiral blade 328 to transport the soil sample to the inner cylinder 323. After the soil sample enters the inner cylinder 323, it is compacted by an upper pressure plate 325 before being vertically lifted, ensuring that the soil sample does not fall during the lifting process and thus enhancing the retention rate of the sample in the inner cylinder 323.

[0033] This invention describes a vertical lifting soil sampling device. The device includes a base box 1 for loading and moving a structure installed within it. A brake wheel 2 is located at the lower end of box 1. Box 1 can be pushed to move the entire soil sampling device 3 according to different preset soil sampling surfaces. In this design, box 1 carries both a soil sampling device 3 and a soil-carrying device 4. The soil sampling device 3 excavates soil from the preset sampling surface and transports it upwards to a preset volume. The soil-carrying device 4 first avoids the soil sampling device 3, i.e., it is misaligned with it. After completing soil sampling, the soil-carrying device 4 returns to its docking position with the soil sampling device 3. The soil sample from the soil sampling device 3 is transferred to the soil-carrying device 4, ultimately achieving the purpose of soil density calculation.

[0034] To ensure that the soil sample taken out during the soil extraction process is not merely subjected to friction and remains within the soil extraction device 3, and to maximize the amount of soil sample retained during the upward lifting of the soil extraction device 3, this embodiment describes the specific structure of the soil extraction device 3. It is located at the upper end of the housing 1 and extends through the housing 1 towards a predetermined soil extraction surface. It includes a hydraulic device 31 located at the upper end of the housing 1. The hydraulic device 31 is connected to a soil extraction cylinder 32 that penetrates into the housing 1 and forms a soil extraction channel 33 within the housing 1. The hydraulic device 31 drives the soil extraction cylinder 32 downwards, and the length of the drive by the hydraulic device 31 on the soil extraction cylinder 32 is compared with a standard height to estimate the amount of soil extracted, ultimately achieving the goal of filling the inner cylinder 323 with extracted soil. The hydraulic device 31 includes mounting plates 311 symmetrically installed at the upper end of the housing 1. The device includes a hydraulic rod 312 positioned between two mounting plates 311, a soil sampling cylinder 32 positioned between the two hydraulic rods 312, a pressure plate 321 positioned between the two hydraulic rods 312, a pressure cylinder 322 connected below the pressure plate 321, the pressure plate 321 providing tension to the pressure cylinder 322 and the inner cylinder 323 rotating inside the pressure cylinder 322 through the connection with the two hydraulic rods 312, and indirectly driving the hydraulic rods 312 to drive the pressure cylinder 322 and the inner cylinder 323 under the push of the pressure plate 321, an annular pressing plate 3210 is installed on the end cylinder surface of the pressure cylinder 322, the area of ​​the pressing plate 3210 is larger than the cross-sectional area of ​​the pressure cylinder 322, part of the structure of the pressing plate 3210 protrudes from the outer edge of the pressure cylinder 322, and a cutting head for determining the radial contour of the soil sampling is installed at the lower end of the inner cylinder 323. By utilizing the staggered connection between the soil sampling device 3 and the soil carrying device 4, the soil sampling device 3 can collect soil from a preset soil sampling surface or place the collected soil into the soil carrying device 4, effectively connecting the material transmission. Furthermore, the soil sampling cylinder 32 of the soil sampling device 3 uses a section of spiral blade 328 to transport the soil sample to the inner cylinder 323. After the soil sample enters the inner cylinder 323, the upper pressure plate 325 compacts the soil and then lifts it vertically, thereby ensuring that the soil sample will not fall during the lifting process, thus enhancing the retention of the soil sample in the inner cylinder 323.The inner cylinder 323 rotates relative to the pressure cylinder 322 via a planetary gear structure 324. A pressure plate 325 for increasing the density of the sampled soil is located at the lower end of the planetary gear structure 324. Several equidistant stirring rods 326 are arranged at the lower end of the pressure plate 325 along the direction of soil entry. A central shaft 327 penetrates into the pressure cylinder 322 from the center of the pressure plate 321. The pressure plate 325 and the stirring rods 326 are both mounted on the central shaft 327. The stopping surface of the stirring rods 326 terminates at the inner wall of the inner cylinder 323. The gear structure 324 includes a gear ring mounted on the inner wall of the inner cylinder 323. A sun gear is sleeved on the shaft of the intermediate shaft 327. A planetary gear meshes between the sun gear and the gear ring. The rotation of the intermediate shaft 327 indirectly drives the rotation of the inner cylinder 323. The lower end of the intermediate shaft 327 conveys soil to the inner cylinder 323 through a spiral cutter head and spiral blades 328 to a preset soil-taking surface. A coupling is connected to the intermediate shaft 327 on the structure protruding from the pressure plate 325. The intermediate shaft 327 is connected to a drive motor 329 through the coupling. The top and bottom plates of the housing 1 are provided with slots adapted to the diameter of the pressure cylinder 322. The height of the material bucket 42 is less than the distance between the internal frame 41 and the bottom plate of the housing 1. The material bucket 42 is open, and its opening diameter is larger than the diameter of the inner cylinder 323. The pressure cylinder 322 is controlled by a hydraulic mechanism to move vertically. The bottom of the pressure cylinder 322 is provided with a pressing plate 3210. When the pressing plate 3210 contacts the predetermined soil extraction surface, its own area and the vertical force applied by the hydraulic mechanism can position the predetermined soil extraction surface and protect the external roadbed. In addition, based on the setting of the inner cylinder 323, a gear ring is provided inside. The inner cylinder 323 is driven to rotate by a drive motor driving a planetary gear structure 324. The bottom cutting blade is used to determine the radial profile of the soil extraction.

[0035] In order to prevent the soil-carrying device 4 from intersecting with the soil-taking device 3 during the sampling process, thereby creating obstacles for the soil-taking device 3 and causing inconvenience in transferring the soil after it is taken by the soil-taking device 3, the soil-carrying device 4 in this embodiment establishes a material transfer channel or a soil-taking channel 33 for the preset soil-taking surface by reciprocating at the lower end of the soil-taking device 3 and the soil-taking cylinder 32 being connected or misaligned with the material bucket 42.This results in two different motion trajectories and two relative motion states. When the soil sampling device 3 is sampling soil, the soil carrying device 4 avoids the soil sampling channel 33. After the soil sampling is completed, the soil carrying device 4 moves below the soil sampling device 3, thereby blocking the soil sampling device 3 and catching the soil sample falling from the soil sampling device 3. Specifically, the soil carrying device 4 is set inside the box 1. The soil carrying device 4 includes an internal frame 41 installed inside the box 1. Within the enclosure of the internal frame 41, a material bucket 42 for carrying and measuring the weight of the material is movable. A drive structure 43 is connected to the material bucket 42 to drive its movement. The drive device pushes the material bucket 42. This allows it to slide left and right at the lower end of the inner cylinder 323, thereby establishing or disengaging the connection with the inner cylinder 323. The drive structure 43 includes a second drive motor 431 mounted on the internal frame 41 structure. A cam 432 is connected through the output shaft of the second drive motor 431. The cam 432 is provided with a first end 433 and a second end 434. The diameter of the second end 434, which is connected to the output shaft of the second drive motor, is larger than that of the first end 433. The width of the cam 432 structure, which is connected to the second end 434 and the first end 433, gradually decreases. The first end 433 moves away from the second end 434 and rotates around the second end 434. The first end 433... A connecting rod 435 extending downwards and connecting to a material container 42 is included. During the rotation of the first end 433 around the second end 434, the connecting rod 435 is pushed to the left by the pushing force of the first end 433, causing the material container 42 to move. The material container 42, under the action of the guide rail slide 44, can only generate a sliding force in the direction of action. Thus, the connecting rod 435 is rotatably connected to the first end 433 of the cam 432. Guide rail slides 44 are installed on the symmetrical front and rear side walls of the internal frame 41. Connecting protrusions 45 extend into the guide rail slides 44, and the material container 42 is connected to the front and rear side walls via connecting protrusions 45. The protrusions 45 extend into the guide rail slides 44, and the material container 42 is transmitted force by the connecting rod 435. The material moves along the guide rail 44. When the drive motor 431 rotates clockwise, the connecting rod 435 pushes the material bucket 42 towards the inner cylinder 323. Conversely, it disengages from the inner cylinder 323. After docking with the outer cylinder, the controller controls the drive motor 329 to reverse, thereby tilting all the soil sample in the inner cylinder 323 into the material bucket 42. The material is transferred from the inner cylinder 323 to the material bucket 42. The material bucket 42 is equipped with a pressure sensor, which enables it to weigh soil. Since the soil is taken from the inner cylinder 323 each time, the volume of the inner cylinder 323 is known, which allows for an intuitive estimation of the soil density at the sampling location.

[0036] At the start of the operation, the hydraulic rod 312 controls the downward movement of the control device, and the pressure cylinder 322 compacts the soil surface to prevent damage to the surrounding soil environment. Simultaneously, the intermediate shaft 327 drives the inner cylinder 323 to rotate and cut the roadbed surface, while the drill bit drills the soil. The amount of soil extracted accumulates and rises with the spiral blades 328. The extracted soil enters the inner cylinder 323 and is broken up by the mixing structure. Once a certain volume of soil has been extracted, it is compacted by the intermediate shaft 327 and the pressure plate 325. After the soil extraction device 3 descends to the hydraulically preset depth, the drive motor stops working, and the hydraulic system reverses direction, raising the entire device. After the device is raised to a certain height, the material bucket 42 moves directly below the inner cylinder 323. The drive motor rotates in the opposite direction, and the compacted soil sample in the inner cylinder 323 is broken up and flows into the material bucket 42 along the spiral blades 328.

[0037] The electrical components described in this article are controlled automatically by a controller. The controller circuit can be easily programmed by those skilled in the art. The power supply is also common knowledge in the field. Furthermore, since this invention is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail here.

[0038] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical lifting soil extraction device, characterized in that, include: The box (1) has a brake wheel (2) at its lower end to provide a loading and moving base for the structure installed in the box (1); The soil sampling device (3) is set at the upper end of the box (1) and extends through the box (1) to the preset soil sampling surface. The soil sampling device (3) includes a hydraulic device (31) set at the upper end of the box (1). The hydraulic device (31) is connected to a soil sampling cylinder (32) that penetrates into the box (1) and opens a soil sampling channel (33) in the box (1). The hydraulic device (31) includes mounting plates (311) symmetrically installed at the top of the box (1) and hydraulic rods (312) disposed between the two mounting plates (311), and the soil sampling cylinder (32) is disposed between the two hydraulic rods (312); The soil-carrying device (4) is set inside the box (1) and establishes or disconnects from the soil-taking cylinder (32). The soil-carrying device (4) includes an internal frame (41) installed inside the box (1). A material bucket (42) for carrying and measuring the weight of the material is set within the enclosure of the internal frame (41). A drive structure (43) for driving the material bucket (42) is connected to the material bucket (42). Guide rail slides (44) are installed on the symmetrical side walls of the internal frame (41). The material bucket (42) reciprocates along the guide rail slides (44) under the action of the drive structure (43). The material bucket (42) is located at the lower end of the soil sampling device (3). The positional relationship between the soil sampling cylinder (32) and the material bucket (42) is connected or misaligned, which establishes a material transfer channel or a soil sampling channel (33) for the preset soil sampling surface. The soil sampling cylinder (32) includes a pressure plate (321) installed between two hydraulic rods (312), a pressure cylinder (322) is connected below the pressure plate (321), and an inner cylinder (323) is rotatably arranged inside the pressure cylinder (322). The inner cylinder (323) is driven by a planetary gear structure (324) to rotate relative to the pressure cylinder (322). A pressure plate (325) for increasing the density of the sampled soil is provided at the lower end of the planetary gear structure (324). Several equidistant stirring rods (326) are provided at the lower end of the pressure plate (325) along the direction of entry of the sampled soil. The top and bottom plates of the box (1) are provided with slots that are adapted to the diameter of the pressure cylinder (322), and the height of the material bucket (42) is less than the distance between the internal frame (41) and the bottom plate of the box (1). A central shaft (327) extends from the center of the pressure plate (321) into the pressure cylinder (322). The pressure plate (325) and the stirring rod (326) are both mounted on the central shaft (327). The end face of the stirring rod (326) stops at the inner wall of the inner cylinder (323). The planetary gear structure (324) includes a gear ring mounted on the inner wall of the inner cylinder (323). A sun gear is sleeved on the shaft of the central shaft (327). A planetary gear meshes between the sun gear and the gear ring. The rotation of the central shaft (327) indirectly drives the rotation of the inner cylinder (323). The lower end of the intermediate shaft (327) conveys soil to the inner cylinder (323) through a spiral cutter head and spiral blades (328). The intermediate shaft (327) protrudes from the structure of the pressure plate (325) and is connected to a coupling. The intermediate shaft (327) is connected to a drive motor (329) through the coupling. The bottom of the pressure cylinder (322) is equipped with an annular pressing plate (3210). The area of ​​the pressing plate (3210) is larger than the cross-sectional area of ​​the pressure cylinder (322). Part of the structure of the pressing plate (3210) protrudes from the outer edge of the pressure cylinder (322). The lower end of the inner cylinder (323) is equipped with a cutting tool for determining the radial profile of the soil extraction.

2. The vertical lifting soil extraction device according to claim 1, characterized in that: The drive structure (43) includes a second drive motor (431) mounted on the internal frame (41) structure. A cam (432) is connected through the output shaft of the second drive motor (431). The cam (432) is provided with a first end (433) and a second end (434). The diameter of the second end (434) connected to the output shaft of the second drive motor is larger than that of the first end (433). The first end (433) is away from the second end (434) and moves in a circle around the second end (434). A connecting rod (435) that extends downward and connects to the material bucket (42) is connected to the first end (433).

3. The vertical lifting soil extraction device according to claim 2, characterized in that: The material bin (42) has protrusions (45) connected to its front and rear side walls, and the protrusions (45) extend into the guide rail slide (44). The material bin (42) moves along the guide rail slide (44) after being transmitted by the force of the connecting rod (435).

4. The vertical lifting soil extraction device according to claim 1, characterized in that: The material bucket (42) is open, and the diameter of its opening is larger than the diameter of the inner cylinder (323).

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