Soil sampling device for water conservancy and hydropower construction

Abstract

The invention relates to the technical field of soil sampling devices, in particular to a soil sampling device for water conservancy and hydropower construction. The soil sampling device comprises a moving frame, a limiting frame is arranged at the bottom of the moving frame, a rotating motor is arranged at the top of the moving frame, a first lead screw is arranged at the output end of the rotating motor, a moving seat is arranged on the surface of the first lead screw, and a sampling barrel is arranged at the bottom of the rotating rod. When sampling is stopped, the soil opposite acting force borne by the sealing plate disappears, the sealing plate applies pressure to the surface of the sealing plate, the sealing plate rotates at the two ends of the fixing rod under the pressure until the sealing plate rotates to be perpendicular to the horizontal plane, and the drilled soil enters the sampling barrel from the opening of the sealing plate and the inner wall of the sampling barrel; the sealing plate is reset to seal the end part of the sampling barrel, so that dry soil collected into the sampling barrel is prevented from falling off when the sampling barrel moves, and the collection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of soil sampling devices, in particular to a soil sampling device for water conservancy and hydropower construction. Background Art

[0002] In the early stages of water conservancy and hydropower project construction, a comprehensive survey of the construction site is required. The nature of the soil has an important impact on the stability of the project, the bearing capacity of the foundation, and the safety of hydraulic structures. Through soil sampling, we can understand the soil type, structure, composition and other information in the construction area, providing a scientific basis for project site selection.

[0003] There are many existing technologies for soil sampling devices, such as:

[0004] Chinese patent publication number CN110186710B discloses a soil sampler, including a vertically arranged support rod, a handle assembly is connected to the upper end of the support rod, and a sampling mechanism is connected to the lower end of the support rod. The sampling mechanism includes a pushing assembly and a sampling assembly. When sampling soil, the relative distance between two movable plug plates can be adjusted by loosening each adjusting bolt, and then the two movable plug plates are fixed by tightening each adjusting bolt. The space area enclosed by the two movable plug plates and the two sampling plug plates can be adjusted, so that the sampling area of ​​the soil can be adjusted. After sampling the soil, the pedal rod can be pushed to drive the pushing rod to move downward, and the pushing plate pushes the sampled soil out.

[0005] However, there are still some problems in actual use:

[0006] 1. In the process of soil sampling, due to the difficulty in determining the corresponding physical properties of soil in different environments, when the soil is relatively dry, the soil collected in the sampling bucket is relatively loose due to the low moisture content in the soil. When the sampling bucket is moved away from the soil after the collection is completed, the soil falls due to gravity, and multiple samplings are required at the same location, resulting in low soil sampling efficiency;

[0007] 2. In order to avoid the mixing of soil samples from different areas during sampling, which will affect the detection accuracy of the sample soil, when the detection accuracy of the sample soil is poor, it will lead to misjudgment of the environment of the sample soil area, affecting the subsequent construction work. Therefore, after the sampling is completed, the inner and outer walls of the sampling barrel need to be cleaned and dusted. During the dust removal and cleaning process, the inner and outer walls of the sampling barrel need to be cleaned at the same time, which increases the labor intensity of the operators.

[0008] In view of this, we propose a soil sampling device for water conservancy and hydropower construction. Summary of the invention

[0009] The object of the present invention is to provide a soil sampling device for water conservancy and hydropower construction to solve the problems raised in the above-mentioned background technology.

[0010] To achieve the above-mentioned purpose, the present invention aims to provide a soil sampling device for water conservancy and hydropower construction, including a mobile frame, a limit frame is provided at the bottom of the mobile frame, a rotating motor is provided at the top of the mobile frame, a first screw is provided at the output end of the rotating motor, a moving seat is provided on the surface of the first screw, the first screw rotates to drive the moving seat to move in a vertical direction, a variable speed motor is provided on the surface of the moving seat, a worm is provided at the output end of the variable speed motor, a worm wheel is meshed on one side of the worm, a transmission rod is provided at the bottom of the worm wheel, a rotating rod is provided at the bottom of the transmission rod, and the bottom of the rotating rod A sampling bucket is provided, which is used to sample soil. Limiting components are provided on both sides of the limiting frame, and the limiting components are used to limit the moving path of the sampling bucket to reduce the shaking of the sampling bucket when it moves in the vertical direction after sampling is completed. Knocking components are provided on both sides of the bottom of the limiting frame, and when the limiting components limit the sampling bucket, the knocking components drive the knocking components to knock and vibrate the side walls of the sampling bucket to loosen the soil attached to the inner and outer walls of the sampling bucket. A sealing component is provided on the inner wall of the sampling barrel, and the sealing component is used to automatically seal the bottom of the sampling barrel when soil sampling is completed.

[0011] As a further improvement of the present technical solution, the limiting assembly includes a second cylinder arranged on both sides of the limiting frame, a movable frame is provided at the output end of the second cylinder, a limiting roller is rotatably provided on the inner wall of the movable frame, and the outer diameter of the limiting roller protrudes to the outside of the movable frame.

[0012] As a further improvement of the technical solution, gear rods are provided on both sides of the limiting roller, and the gear rods penetrate the limiting frame to the outside. A knocking assembly is provided at the end of the gear rod. When the limiting roller drives the gear rod to rotate coaxially, the knocking assembly is controlled to impact the surface of the sampling barrel.

[0013] As a further improvement of the present technical solution, the striking assembly includes a support column arranged at the bottom of the limit frame, a driven gear rod is rotatably provided at the end of the support column, the driven gear rod is meshed and rotated with the gear rod, the tooth pattern ratio of the driven gear rod to the gear rod is 1:4, and an eccentric wheel is provided on the surface of the driven gear rod.

[0014] As a further improvement of the technical solution, a vertical plate is provided on one side of the eccentric wheel, a sliding rod is slidably provided on the surface of the vertical plate, a knocking ball is provided at the end of the sliding rod, and a compression spring is provided between the sliding rod and the vertical plate. When the eccentric wheel rotates, the sliding rod is pushed to drive the knocking ball to hit the surface of the sampling barrel.

[0015] As a further improvement of the technical solution, dust suction fans are provided on both sides of the bottom of the movable seat. When sampling is performed, the dust suction fans are used to collect the floating dust to reduce the pollution to the environment caused by the floating dust.

[0016] As a further improvement of the technical solution, a support plate is provided on the top of the limit frame, a servo motor is provided on one side of the support plate, a second screw rod is provided at the output end of the servo motor, the thread on the surface of the second screw rod is symmetrical, and an arc scraper is provided on the surface of the second screw rod, and the enclosed diameter between the arc scrapers is the same as the diameter of the outer wall of the sampling barrel.

[0017] As a further improvement of the present technical solution, a first cylinder is provided on the inner wall of the rotating rod, a piston rod at the end of the first cylinder passes through the top of the sampling barrel and a pressing plate is provided at the end, and pressing teeth are provided at the bottom of the pressing plate, and the pressing teeth are used to compact the sampled soil in the sampling barrel.

[0018] As a further improvement of the technical solution, a rack is provided at the bottom of the pressing plate. When the pressing plate drives the rack to move downward in a vertical direction, the rack is used to control the opening and closing state of the sealing assembly.

[0019] As a further improvement of the present technical solution, the sealing assembly includes a base plate arranged at the bottom of the sampling barrel, fixed rods are arranged on both sides of the base plate, sealing plates are rotatably arranged at both ends of the fixed rods, fixed gears are arranged at the ends of the sealing plates, and torsion springs are arranged on the surfaces of the fixed rods, and the two ends of the torsion springs are respectively connected to the fixed gears and the base plate. In a natural state, the sealing plate is in a horizontal state due to the force of the torsion spring, and when the rack moves downward in a vertical direction, it drives the base plate to engage and rotate, so that the sealing plate rotates to a vertical position of the fixed rod, so that the sealing plates are in an open state.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the soil sampling device for water conservancy and hydropower construction, the output shaft of the rotating motor is controlled to drive the first screw to rotate, so that the moving seat moves on the surface of the first screw. When the output end of the variable speed motor drives the worm to rotate, the worm gear provided on one side of the worm engages and rotates, and the worm gear drives the transmission rod at the bottom to rotate. When the transmission rod rotates, it drives the rotating rod to rotate coaxially, and the sampling bucket at the bottom of the rotating rod rotates, so that the sampling bucket drills and collects the soil at a uniform speed.

[0022] 2. In the soil sampling device for water conservancy and hydropower construction, the soil is squeezed during the downward movement of the sampling barrel, and the soil is subjected to a reverse force that applies pressure to the surface of the sealing plate. The sealing plate is subjected to the pressure and rotates at both ends of the fixed rod until the sealing plate rotates to a vertical state with the horizontal plane. The drilled soil enters the sampling barrel from the opening between the sealing plate and the inner wall of the sampling barrel. When sampling stops, the reverse force of the soil on the sealing plate disappears, and the sealing plate is reset to seal the end of the sampling barrel, thereby preventing the dry soil collected inside the sampling barrel from falling when the sampling barrel moves, thereby improving the collection efficiency.

[0023] 3. In the soil sampling device for water conservancy and hydropower construction, when the soil sampling is completed and the sampling barrel moves up in the vertical direction, the limiting roller limits the two sides of the sampling barrel, and at the same time, the limiting roller drives the gear rod to rotate coaxially due to the friction force. During the rotation, the gear rod drives the driven gear rotating rod to engage and rotate. When the driven gear rotating rod rotates, it drives the eccentric wheel to move coaxially. The rotation of the eccentric wheel pushes the compression spring to move, so that the knocking ball at the end of the compression spring hits the outer wall of the sampling barrel, loosening the soil attached to the surface and inner wall of the sampling barrel, thereby facilitating the collection of the soil inside the sampling barrel and reducing the labor intensity of the operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0026] Figure 3 It is a cross-sectional view of the sampling barrel of the present invention;

[0027] Figure 4 For the present invention Figure 3 Schematic diagram of point A;

[0028] Figure 5 It is a schematic diagram of the structure of the arc scraper of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the limit assembly of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the sealing assembly of the present invention;

[0031] Figure 8 It is a schematic diagram of the structure of the knocking component of the present invention.

[0032] The meaning of each number in the figure is:

[0033] 100, moving frame; 101, rotating motor; 102, first screw rod; 103, moving seat; 104, dust suction fan; 105, limit frame; 106, servo motor; 107, second screw rod; 108, arc scraper;

[0034] 200, variable speed motor; 201, worm; 202, worm wheel; 203, rotating rod; 204, sampling barrel; 205, first cylinder; 206, pressing plate; 207, rack;

[0035] 300, limit assembly; 301, second cylinder; 302, moving frame; 303, limit roller; 304, gear rod;

[0036] 400, knocking assembly; 401, driven gear rotating rod; 402, eccentric wheel; 403, sliding rod; 404, knocking ball; 405, compression spring;

[0037] 500, sealing assembly; 501, base plate; 502, sealing plate; 503, fixed gear; 504, torsion spring. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0040] The purpose of this embodiment is to provide a soil sampling device for water conservancy and hydropower construction. Figure 1-Figure 8As shown, it includes a moving frame 100, a limiting frame 105 is provided at the bottom of the moving frame 100, a rotating motor 101 is provided at the top of the moving frame 100, a first screw rod 102 is provided at the output end of the rotating motor 101, a moving seat 103 is provided on the surface of the first screw rod 102, the first screw rod 102 rotates to drive the moving seat 103 to move in a vertical direction, a variable speed motor 200 is provided on the surface of the moving seat 103, a worm 201 is provided at the output end of the variable speed motor 200, a worm gear 202 is meshed on one side of the worm gear 201, a transmission rod is provided at the bottom of the worm gear 202, a rotating rod 203 is provided at the bottom of the transmission rod, and a sampling barrel 204 is provided at the bottom of the rotating rod 203. The sampling barrel 204 is used to sample soil Sampling, limiting components 300 are provided on both sides of the limiting frame 105, and the limiting components 300 are used to limit the moving path of the sampling barrel 204 to reduce the shaking of the sampling barrel 204 when moving in the vertical direction after sampling is completed. Knocking components 400 are provided on both sides of the bottom of the limiting frame 105. When the limiting components 300 limit the sampling barrel 204, they drive the knocking components 400 to knock and vibrate the side walls of the sampling barrel 204 to loosen the soil attached to the inner and outer walls of the sampling barrel 204. A sealing component 500 is provided on the inner wall of the sampling barrel 204. The sealing component 500 is used to automatically seal the bottom of the sampling barrel 204 when soil sampling is completed to prevent soil from falling during the sampling process.

[0041] When soil sampling is completed, the sampling barrel 204 is controlled to move vertically to the outside of the soil, so as to collect the soil. During the movement of the sampling barrel 204, in order to prevent the soil inside the sampling barrel 204 from shaking and falling, the limiting assembly 300 includes a second cylinder 301 arranged on both sides of the limiting frame 105, and a moving frame 302 is arranged at the output end of the second cylinder 301. The inner wall of the moving frame 302 is rotatably provided with a limiting roller 303, and the outer diameter of the limiting roller 303 protrudes to the outside of the moving frame 302, and the limiting roller 303 is controlled to move vertically to the outside of the moving frame 302. The output end of the second cylinder 301 drives the moving frame 302 to move horizontally, so that the limiting rollers 303 provided inside the moving frame 302 clamp and limit the two sides of the sampling barrel 204. When the sampling barrel 204 moves in the vertical direction, the limiting rollers 303 limit the moving path of the sampling barrel 204. At the same time, the limiting rollers 303 are rotated by the friction force of the outer wall of the gear rod 304, so as to avoid the loose soil samples falling due to shaking during the movement of the sampling barrel 204, thereby improving the accuracy of the detection and analysis of the soil by the detection device.

[0042] When the soil sampling is completed, the output end of the rotating motor 101 is controlled to drive the first screw rod 102 to rotate, so that the movable seat 103 moves upward in the vertical direction, thereby driving the sampling barrel 204 away from the inside of the soil. Since the sampling barrel 204 is rotating to sample the soil, the soil is subjected to pressure and accumulates inside the sampling barrel 204. When the pressure on the soil is large, the soil adheres to the inner wall and the outside of the sampling barrel 204, resulting in the need to clean the sampling barrel 204 when collecting the sampled soil, which increases the labor intensity of the operators. Therefore, gear rods 304 are provided on both sides of the limiting roller 303, and the gear rod 304 passes through the limiting frame 105 to the outside. A knocking assembly 400 is provided at the end of the gear rod 304. When the limiting roller 303 drives the gear rod 304 to rotate coaxially, the knocking assembly 400 is controlled to impact the surface of the sampling barrel 204. The knocking assembly 400 includes a support column arranged at the bottom of the limiting frame 105, and the end of the support column The driven gear rotating rod 401 is provided with a driven gear rotating rod 401, which meshes and rotates with the gear rod 304. The tooth pattern ratio of the driven gear rotating rod 401 and the gear rod 304 is 1:4. An eccentric wheel 402 is provided on the surface of the driven gear rotating rod 401. When the soil sampling is completed and the sampling barrel 204 moves up in the vertical direction, the limiting roller 303 limits the two sides of the sampling barrel 204. At the same time, the limiting roller 303 is driven by the friction force to drive the gear rod 304 to rotate coaxially. The gear rod 30 During the rotation process, the driven gear rotating rod 401 is driven to mesh and rotate, and the driven gear rotating rod 401 drives the eccentric wheel 402 to move coaxially. The rotation of the eccentric wheel 402 pushes the compression spring 405 to move, so that the knocking ball 404 at the end of the compression spring 405 hits the outer wall of the sampling barrel 204, so that the soil attached to the surface and inner wall of the sampling barrel 204 is loosened, so as to facilitate the collection of the soil inside the sampling barrel 204 and reduce the labor intensity of the operators.

[0043] Considering that the sampling barrel 204 must ensure the cleanliness of the surface and inner wall of the sampling barrel 204 when performing the sampling operation, in order to avoid the mixing of soil during different sampling cycles due to incomplete cleaning, resulting in inaccurate sampling analysis and affecting the judgment of the physical and chemical properties of the soil, a vertical plate is provided on one side of the eccentric wheel 402, a sliding rod 403 is slidingly provided on the surface of the vertical plate, a knocking ball 404 is provided at the end of the sliding rod 403, and a compression spring 405 is provided between the sliding rod 403 and the vertical plate. When the eccentric wheel 402 rotates, the sliding rod 403 is pushed to drive the knocking ball 404 to hit the surface of the sampling barrel 204. When the soil sampling is completed, the limit The roller 303 is pressed against the surface of the sampling barrel 204 and rotates due to friction. The limiting roller 303 drives the gear rods 304 on both sides to rotate coaxially. The gear rods 304 drive the driven gear rotating rod 401 to mesh and rotate. When the driven gear rotating rod 401 rotates, it drives the eccentric wheel 402 to rotate coaxially. During the rotation of the eccentric wheel 402, the sliding rod 403 is squeezed to make the sliding rod 403 slide on the surface of the vertical plate. The knocking ball 404 provided at the end of the sliding rod 403 hits the sampling barrel 204, so that the soil attached to the inner and outer walls of the sampling barrel 204 falls off, thereby avoiding soil mixing during different sampling cycles and ensuring the accuracy of sampling analysis.

[0044] During the soil sampling process, when the sampling bucket 204 rotates to sample the soil, since the soil is composed of dust, a large amount of dust is generated during the sampling process, and the operator is prone to inhaling dust and smoke, causing physical discomfort. Therefore, dust suction fans 104 are provided on both sides of the bottom of the mobile seat 103. When the sampling operation is performed, the dust suction fans 104 are used to collect the impact floating dust to reduce the pollution caused by dust drifting to the environment. When the output end of the variable speed motor 200 drives the worm 201 to rotate, the worm wheel 202 provided on one side of the worm 201 meshes and rotates, and the worm wheel 202 drives The transmission rod at the bottom rotates, and when the transmission rod rotates, it drives the rotating rod 203 to rotate coaxially, and the sampling bucket 204 at the bottom of the rotating rod 203 rotates, and the output shaft of the rotating motor 101 is controlled to drive the first screw rod 102 to rotate, so that the moving seat 103 moves on the surface of the first screw rod 102, so that the sampling bucket 204 drills and collects the soil at a uniform speed. During the movement of the moving seat 103, the dust suction fan 104 is driven to move, so that the dust suction fan 104 collects the generated floating dust, so as to avoid discomfort caused by inhalation by the operators, and at the same time, to avoid dust pollution to the environment.

[0045] Considering that the sampling barrel 204 is prone to soil adhesion during the soil sampling process, when the soil moisture is high, the soil adhered to the surface of the sampling barrel 204 is not easy to fall off, therefore, a support plate is provided on the top of the limit frame 105, a servo motor 106 is provided on one side of the support plate, and a second screw rod 107 is provided at the output end of the servo motor 106, the surface thread of the second screw rod 107 is symmetrical, and the surface of the second screw rod 107 is provided with an arc scraper 108, and the arc scraper 108 encloses a diameter of The outer wall diameters of the sampling barrel 204 are the same. When the sampling of the sampling barrel 204 is completed, the output end of the servo motor 106 is controlled to drive the second screw 107 to rotate, so that the arc scraper 108 provided on the surface of the second screw 107 moves relatively, so that the inner wall of the arc scraper 108 fits the surface of the sampling barrel 204 to form an enclosure. During the movement of the sampling barrel 204, the arc scraper 108 scrapes the dust adhered to the outer wall surface of the sampling barrel 204, thereby facilitating the rapid cleaning of the surface of the sampling barrel 204.

[0046] When the sampling of the sampling barrel 204 is completed, in order to facilitate the rapid collection of the sampled soil, a first cylinder 205 is provided on the inner wall of the rotating rod 203. The piston rod at the end of the first cylinder 205 passes through the top of the sampling barrel 204 and is provided with a pressing plate 206 at the end. The bottom of the pressing plate 206 is provided with pressing teeth, and the pressing teeth are used to compact the sampled soil in the sampling barrel 204. The pressing plate 206 is driven to slide against the inner wall of the sampling barrel 204 by controlling the piston rod at the end of the first cylinder 205. During the sliding process of the pressing plate 206, the soil collected in the sampling barrel 204 is pressed. Since the pressing teeth are provided at the bottom of the pressing plate 206, the pressure on the soil can be increased, so that the soil inside the sampling barrel 204 is squeezed to reduce the volume, which is convenient for collecting and taking the sample soil.

[0047] When the soil in the sampling area is loose and dry, the adhesion is small due to the low moisture content in the soil. When the soil is collected and moved inside the sampling barrel 204, the soil is easy to fall from the drill hole of the sampling barrel 204, and the soil needs to be collected multiple times, resulting in low sampling efficiency. Therefore, a rack 207 is provided at the bottom of the pressing plate 206. When the pressing plate 206 drives the rack 207 to move downward in the vertical direction, the rack 207 is used to control the opening and closing state of the sealing component 500. The sealing component 500 includes a base plate 501 provided at the bottom of the sampling barrel 204, and fixing rods are provided on both sides of the base plate 501. , sealing plates 502 are rotatably provided at both ends of the fixed rod, a fixed gear 503 is provided at the end of the sealing plate 502, a torsion spring 504 is provided on the surface of the fixed rod, and the two ends of the torsion spring 504 are respectively connected to the fixed gear 503 and the base plate 501. In a natural state, the sealing plate 502 is in a horizontal state due to the force of the torsion spring 504, and the rack 207 moves downward in a vertical direction to drive the base plate 501 to mesh and rotate, so that the sealing plate 502 rotates to the vertical position of the fixed rod, so that the sealing plates 502 are in an open state. By arranging the base plate 501 at the bottom of the sampling barrel 204, the sealing plate 50 2 is always kept horizontal by the torsion spring 504, and the bottom of the sampling barrel 204 is sealed between the sealing plates 502. When the sampling barrel 204 rotates to sample the soil, the soil is squeezed during the downward movement of the sampling barrel 204, and the soil is subjected to the reverse force to exert pressure on the surface of the sealing plate 502. The sealing plate 502 is rotated at both ends of the fixed rod under the pressure until the sealing plate 502 rotates to a state perpendicular to the horizontal plane, and the drilled soil enters the sampling barrel 204 from the opening between the sealing plate 502 and the inner wall of the sampling barrel 204. When the soil sampling is completed, the sealing plate 502 is When the sampling barrel 204 is moved, the dry soil will not fall off. When the sample soil is collected, the piston rod at the end of the first cylinder 205 drives the pressing plate 206 to move downward, and the pressing plate 206 drives the rack 207 to move. When the rack 207 moves to one side of the fixed gear 503, the rack 207 drives the fixed gear 503 to rotate in meshing, so that the sealing plate 502 rotates clockwise on the surface of the fixed rod, so that the soil accumulated in the sampling barrel 204 is pressed and collected, thereby improving the collection efficiency of the sample soil.

[0048] In summary, the working principle of the present invention is as follows: by controlling the output shaft of the rotating motor 101 to drive the first screw 102 to rotate, the moving seat 103 moves on the surface of the first screw 102, when the output end of the variable speed motor 200 drives the worm 201 to rotate, the worm wheel 202 provided on one side of the worm 201 meshes and rotates, the worm wheel 202 drives the transmission rod at the bottom to rotate, and when the transmission rod rotates, it drives the rotating rod 203 to rotate coaxially, and the sampling barrel 204 at the bottom of the rotating rod 203 rotates, so that the sampling barrel 204 drills and collects the soil at a uniform speed;

[0049] When the sampling barrel 204 rotates to sample the soil, the soil is squeezed during the downward movement of the sampling barrel 204, and the soil is subjected to a reverse force that applies pressure to the surface of the sealing plate 502. The sealing plate 502 is subjected to pressure and rotates at both ends of the fixed rod until the sealing plate 502 rotates to a vertical state with the horizontal plane, and the drilled soil enters the sampling barrel 204 from the opening between the sealing plate 502 and the inner wall of the sampling barrel 204. When the soil sampling is completed, the reverse force of the soil on the sealing plate 502 disappears, and the sealing plate 502 is reset to seal the end of the sampling barrel 204. When the sampling barrel 204 is moved, the dry soil will not fall off. When the sample soil is collected, the first cylinder The piston rod at the end of 205 drives the pressing plate 206 to move downward. During the sliding process of the pressing plate 206, the soil collected in the sampling barrel 204 is pressed. Since the pressing plate 206 is provided with pressing teeth at the bottom, the pressure on the soil can be increased, so that the soil inside the sampling barrel 204 is squeezed and reduced in volume, which is convenient for collecting and taking the sample soil. The pressing plate 206 drives the rack 207 to move. When the rack 207 moves to one side of the fixed gear 503, the rack 207 drives the fixed gear 503 to rotate in meshing, so that the sealing plate 502 rotates clockwise on the surface of the fixed rod, so that the soil accumulated in the sampling barrel 204 is pressed and collected, thereby improving the collection efficiency of the sample soil.

[0050] When the soil sampling is completed and the sampling barrel 204 moves up in the vertical direction, the limiting roller 303 limits the two sides of the sampling barrel 204. At the same time, the limiting roller 303 is driven by the friction force to drive the gear rod 304 to rotate coaxially. During the rotation, the gear rod 304 drives the driven gear rotating rod 401 to engage and rotate. When the driven gear rotating rod 401 rotates, it drives the eccentric wheel 402 to move coaxially. The rotation of the eccentric wheel 402 pushes the compression spring 405 to move, so that the knocking ball 404 at the end of the compression spring 405 hits the outer wall of the sampling barrel 204, loosening the soil attached to the surface and inner wall of the sampling barrel 204, thereby facilitating the collection of the soil inside the sampling barrel 204 and reducing the labor intensity of the operators.

[0051] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A soil sampling device for water conservancy and hydropower construction, characterized in that: The invention comprises a moving frame (100), a limiting frame (105) is provided at the bottom of the moving frame (100), a rotating motor (101) is provided at the top of the moving frame (100), a first screw rod (102) is provided at the output end of the rotating motor (101), a moving seat (103) is provided on the surface of the first screw rod (102), the first screw rod (102) rotates to drive the moving seat (103) to move in a vertical direction, a variable speed motor (200) is provided on the surface of the moving seat (103), a worm (201) is provided at the output end of the variable speed motor (200), a worm wheel (202) is meshed on one side of the worm (201), a transmission rod is provided at the bottom of the worm wheel (202), a rotating rod (203) is provided at the bottom of the transmission rod, a sampling bucket (204) is provided at the bottom of the rotating rod (203), and the The sampling barrel (204) is used for sampling soil. Limiting components (300) are provided on both sides of the limiting frame (105). The limiting components (300) are used for limiting the moving path of the sampling barrel (204) to reduce the shaking of the sampling barrel (204) when moving in a vertical direction after sampling. Knocking components (400) are provided on both sides of the bottom of the limiting frame (105). When limiting the sampling barrel (204), the limiting components (300) drive the knocking components (400) to knock and vibrate the side walls of the sampling barrel (204) to loosen the soil attached to the inner and outer walls of the sampling barrel (204). The inner wall of the sampling barrel (204) is provided with a sealing component (500). The sealing component (500) is used for automatically sealing the bottom of the sampling barrel (204) when soil sampling is completed.

2. The soil sampling device for water conservancy and hydropower construction according to claim 1 is characterized in that: The limiting assembly (300) comprises a second cylinder (301) arranged on both sides of the limiting frame (105); a moving frame (302) is provided at the output end of the second cylinder (301); a limiting roller (303) is rotatably provided on the inner wall of the moving frame (302); and the outer diameter of the limiting roller (303) protrudes to the outside of the moving frame (302).

3. The soil sampling device for water conservancy and hydropower construction according to claim 2 is characterized in that: Gear rods (304) are provided on both sides of the limiting roller (303), and the gear rods (304) penetrate the limiting frame (105) to the outside. A knocking assembly (400) is provided at the end of the gear rod (304). When the limiting roller (303) drives the gear rod (304) to rotate coaxially, the knocking assembly (400) is controlled to impact the surface of the sampling barrel (204).

4. The soil sampling device for water conservancy and hydropower construction according to claim 1 is characterized in that: The striking assembly (400) comprises a supporting column arranged at the bottom of the limiting frame (105), a driven gear rotating rod (401) being rotatably arranged at the end of the supporting column, the driven gear rotating rod (401) being meshed and rotatably engaged with the gear rod (304), the tooth pattern ratio of the driven gear rotating rod (401) to the gear rod (304) being 1:4, and an eccentric wheel (402) being arranged on the surface of the driven gear rotating rod (401).

5. The soil sampling device for water conservancy and hydropower construction according to claim 4 is characterized in that: A vertical plate is provided on one side of the eccentric wheel (402), a sliding rod (403) is slidably provided on the surface of the vertical plate, a knocking ball (404) is provided at the end of the sliding rod (403), and a compression spring (405) is provided between the sliding rod (403) and the vertical plate. When the eccentric wheel (402) rotates, the sliding rod (403) is pushed to drive the knocking ball (404) to hit the surface of the sampling barrel (204).

6. The soil sampling device for water conservancy and hydropower construction according to claim 1 is characterized in that: Dust suction fans (104) are provided on both sides of the bottom of the movable seat (103). When the sampling operation is performed, the dust suction fans (104) are used to collect the dust that floats in the air, thereby reducing the pollution to the environment caused by the dust.

7. The soil sampling device for water conservancy and hydropower construction according to claim 6 is characterized in that: A support plate is provided on the top of the limit frame (105), a servo motor (106) is provided on one side of the support plate, a second screw rod (107) is provided at the output end of the servo motor (106), the thread on the surface of the second screw rod (107) is symmetrical, an arc-shaped scraper (108) is provided on the surface of the second screw rod (107), and the enclosed diameter between the arc-shaped scrapers (108) is the same as the diameter of the outer wall of the sampling barrel (204).

8. The soil sampling device for water conservancy and hydropower construction according to claim 7 is characterized in that: A first cylinder (205) is provided on the inner wall of the rotating rod (203); a piston rod at the end of the first cylinder (205) penetrates the top of the sampling barrel (204) and a pressing plate (206) is provided at the end; pressing teeth are provided at the bottom of the pressing plate (206), and the pressing teeth are used to compact the soil sampled in the sampling barrel (204).

9. The soil sampling device for water conservancy and hydropower construction according to claim 8, characterized in that: A rack (207) is provided at the bottom of the pressing plate (206). When the pressing plate (206) drives the rack (207) to move downward in a vertical direction, the rack (207) is used to control the opening and closing state of the sealing assembly (500).

10. The soil sampling device for water conservancy and hydropower construction according to claim 9, characterized in that: The sealing assembly (500) comprises a base plate (501) arranged at the bottom of the sampling barrel (204), fixed rods are arranged on both sides of the base plate (501), sealing plates (502) are rotatably arranged at both ends of the fixed rods, fixed gears (503) are arranged at the ends of the sealing plates (502), and torsion springs (504) are arranged on the surfaces of the fixed rods, and the two ends of the torsion springs (504) are respectively connected to the fixed gears (503) and the base plate (501), and in a natural state, the sealing plate (502) is in a horizontal state due to the force of the torsion springs (504), and when the rack (207) moves downward in a vertical direction, it drives the base plate (501) to mesh and rotate, so that the sealing plate (502) rotates to a vertical position of the fixed rod, and the sealing plates (502) are in an open state.

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