A sampling device for deep soil

Abstract

The utility model relates to the sampling device field of deep soil discloses a sampling device for deep soil, including elevating support frame, the elevating support frame inner wall is provided with the lifting platform, the lifting platform outer wall fixedly connected with the limiting block, the lifting platform inner wall is opened with the limiting slot no.

Description

Technical Field

[0001] This utility model relates to the field of deep soil sampling devices, and more particularly to a sampling device for deep soil. Background Technology

[0002] In fields such as agricultural production planning, soil pollution remediation, and geological resource exploration, deep soil sampling and analysis is a fundamental step in obtaining key information such as soil composition, structure, and pollution status. The accuracy of the data directly affects subsequent assessments and decisions.

[0003] Existing technologies rely on traditional manual sampling, which involves digging manually with tools such as shovels and Luoyang shovels. This is not only extremely labor-intensive but also inefficient at depth sampling. It lacks effective sealing and switching mechanisms, and the loosening stage is prone to contamination by topsoil. The soil retrieval stage is also prone to sample loss due to soil backflow. Furthermore, the coordination between depth adjustment and soil retrieval and transportation is poor, requiring manual assistance in switching procedures. This process is cumbersome and prone to affecting sample integrity due to coordination errors.

[0004] In view of the fact that some sampling devices in the existing technology use an integrated sampling tube design that cannot isolate soil layers at different depths, the sampling port is always open during the drilling process, and the upper soil layer will continuously flow into the interior as the sampling tube moves down. The soil entering the sampling tube can only rely on its own weight or the thrust of subsequent drilling to accumulate inside the tube, and it is very easy to stick to the tube wall and form stagnation. Therefore, a sampling device for deep soil is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a sampling device for deep soil, which aims to solve the problem that the integrated sampling tube in the prior art cannot isolate soil layers at different depths.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sampling device for deep soil, comprising a lifting support frame, a lifting platform provided on the inner wall of the lifting support frame, a limiting block fixedly connected to the outer wall of the lifting platform, a limiting groove II formed in the inner wall of the lifting platform, a limiting turntable rotatably connected to the inner wall of the limiting groove II, a helical gear II fixedly connected to the top of the limiting turntable, a rotating rod rotatably connected to the inner wall of the helical gear II, a helical gear III fixedly connected to the top of the rotating rod, a conveying auger fixedly connected to the outer wall of the rotating rod, a soil collector fixedly connected to the bottom of the limiting turntable, and a soil sampling drum fixedly connected to the bottom of the soil collector.

[0007] As a further description of the above technical solution: A motor is fixedly connected to the top of the lifting platform, and a helical gear is fixedly connected to the output end of the motor.

[0008] As a further description of the above technical solution: The outer wall of helical gear one is meshed with the outer walls of helical gear two and helical gear three, respectively.

[0009] As a further description of the above technical solution: The top of the lifting platform is fixedly connected to a support column, and the top of the support column is fixedly connected to a support platform. A limit rod is threadedly connected to the inner wall of the support platform.

[0010] As a further description of the above technical solution: A second motor is fixedly connected to the top of the support platform, and a threaded rod is fixedly connected to the output end of the second motor.

[0011] As a further description of the above technical solution: The outer wall of the threaded rod is threadedly connected to a threaded sleeve, and the outer wall of the threaded sleeve is fixedly connected to the inner wall of the limiting block.

[0012] As a further description of the above technical solution: The inner wall of the lifting support frame is provided with a limiting groove, and the outer wall of the limiting block is slidably connected to the inner wall of the limiting groove.

[0013] As a further description of the above technical solution: The bottom of the soil sampling drum is provided with a sampling port, and the bottom end of the limiting rod is adapted to the sampling port.

[0014] This utility model has the following beneficial effects: 1. In this utility model, during the process of the soil sampling drum drilling into the soil, sealing the sampling port can prevent soil from entering at non-target depths and ensure the targeting of sampling; when the target depth is reached, the sampling port can be opened to take samples, thus achieving precise control of the sampling timing. The rotating conveyor blades allow the soil to be immediately transported to the soil collector after entering the soil sampling drum.

[0015] 2. In this utility model, the drill bit at the bottom of the soil sampling drum can directly break up the soil, especially for hard or lumpy deep soil. It can effectively break the soil structure and create conditions for the soil sampling drum to penetrate deeper into the soil. The drill bit is responsible for breaking down the soil resistance, and the lifting platform provides continuous downward pressure and depth adjustment capability, so that the soil sampling drum can penetrate into deep soil areas that are difficult to reach in the past shallow sampling. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of a sampling device for deep soil proposed in this utility model; Figure 2 This is a schematic cross-sectional view of the lifting support frame structure of a sampling device for deep soil proposed in this utility model. Figure 3This is a schematic diagram of the cross-sectional structure of the lifting platform of a sampling device for deep soil proposed in this utility model. Figure 4 This is a schematic diagram of the cross-sectional structure of the sampling drum of a sampling device for deep soil proposed in this utility model.

[0017] Legend: 1. Lifting support frame; 2. Lifting platform; 211. Motor 1; 212. Helical gear 1; 213. Helical gear 2; 214. Helical gear 3; 215. Support column; 216. Support platform; 217. Limiting rod; 218. Limiting turntable; 219. Soil collector; 220. Rotating rod; 221. Conveying winch; 222. Soil-collecting rotary drum; 3. Motor 2; 311. Threaded rod; 312. Threaded sleeve; 313. Limiting groove 1; 314. Limiting groove 2; 315. Limiting block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Reference Figures 1-3The embodiment provided by this utility model includes a lifting support frame 1, with a lifting platform 2 provided on the inner wall of the lifting support frame 1. The lifting support frame 1 limits the movement of the lifting platform 2. A limit block 315 is fixedly connected to the outer wall of the lifting platform 2. The lifting platform 2 slides through the fixed connection of the limit block 315 and the first limit groove 313. A second limit groove 314 is provided on the inner wall of the lifting platform 2. The lifting platform 2 is limited by the second limit groove 314. A limit turntable 218 is rotatably connected to the inner wall of the second limit groove 314. The limit turntable 218 rotates by rotating through the connection with the inner wall of the second limit groove 314. A helical gear 213 is fixedly connected to the top of the limit turntable 218. The limit turntable 218 rotates by the helical gear 213 fixedly connected to its top. A rotating rod 220 is rotatably connected to the inner wall of the 13th section. The rotating rod 220 is limited by the rotating connection. A helical gear 214 is fixedly connected to the top of the rotating rod 220. The rotating rod 220 is rotated by the helical gear 214 fixedly connected to the inner wall of the helical gear 214. A conveying blade 221 is fixedly connected to the outer wall of the rotating rod 220. The rotation of the helical gear 214 drives the conveying blade 221 fixedly connected to the rotating rod 220 to achieve the effect of rotation. A soil collector 219 is fixedly connected to the bottom of the limiting turntable 218. The soil collector 219 is limited by the fixed connection with the bottom of the limiting turntable 218. A soil-collecting drum 222 is fixedly connected to the bottom of the soil collector 219. The soil-collecting drum 222 transports soil into the soil collector 219 by the conveying blade 221 on the inner wall.

[0020] Reference Figures 2-3 A motor 211 is fixedly connected to the top of the lifting platform 2, ensuring stability. A helical gear 212 is fixedly connected to the output end of the motor 211, supplying power to rotate the helical gear 212. The outer wall of the helical gear 212 meshes with the outer walls of helical gears 213 and 214 respectively. The helical gear 212 drives the helical gear 213 to rotate forward through this meshing connection, and drives the helical gear 214 to rotate in reverse through the same connection. A support column 215 is fixedly connected to the top of the lifting platform 2. The support column 215 supports the support platform 216. The support platform 216 is fixedly connected to the top of the support column 215. The support column 215 supports the support platform 216. The inner wall of the support platform 216 is threadedly connected to the limit rod 217. The support platform 216 limits the limit rod 217 through the threaded connection. The top of the support platform 216 is fixedly connected to the motor 216. The motor 216 is fixedly connected to the support platform 216 to achieve a stable effect. The output end of the motor 216 is fixedly connected to the threaded rod 311. The output end of the motor 216 supplies power to achieve the rotation effect of the threaded rod 311.

[0021] Reference Figures 2-4The threaded rod 311 has a threaded sleeve 312 threadedly connected to its outer wall. The threaded rod 311 can rotate in both directions through the threaded sleeve 312. The outer wall of the threaded sleeve 312 is fixedly connected to the inner wall of the limiting block 315. The threaded sleeve 312 drives the lifting platform 2, which is fixedly connected to the limiting block 315, to achieve a lifting effect through the threaded rod 311. The inner wall of the lifting support frame 1 has a limiting groove 313. The limiting block 315 is fixedly connected to the lifting platform 2 and slides through the limiting groove 313. The outer wall of the limiting block 315 slides on the inner wall of the limiting groove 313. The limiting block 315 is fixedly connected to the lifting platform 2 and slides through the limiting groove 313. The bottom of the soil sampling drum 222 has a sampling port. The sampling port is adapted to the limiting rod 217 to achieve a sealing effect. The bottom end of the limiting rod 217 is adapted to the sampling port, and the sampling port is adapted to the limiting rod 217 to achieve a sealing effect.

[0022] Working principle: When performing deep soil sampling, the lifting support frame 1 is first placed at the sampling point, and the limiting rod 217 is turned downwards to seal the soil sampling drum 222 so as to cut into the soil and complete the loosening and crushing. Then, the motor 1 211 is started, which drives the threaded rod 311 to rotate. With the help of the threaded sleeve 312, the lifting platform 2 is raised and lowered along the limiting groove 313 to realize the adjustment of the sampling depth. At the same time, the motor 2 3 is started, and its output end drives the helical gear 1 212 to rotate. Through the vertical meshing transmission with the helical gear 2 213, the helical gear 2 213 is driven to rotate forward, thereby making the limiting turntable 218 and the soil sampling drum 222 rotate synchronously. The drill bit at the bottom of the soil sampling drum 222 can crush the soil. Through cooperation with the lifting platform 2, the soil sampling drum 222 can be drilled into the deep soil layer to facilitate subsequent deep soil sampling.

[0023] When deep soil sampling is required, the limiting rod 217 is turned so that the bottom of the limiting rod 217 is no longer sealed at the sampling port. While the helical gear 1 212 rotates, it also drives the helical gear 3 214 to reverse, which drives the rotating rod 220 to rotate. The rotating rod 220 drives the conveying auger 221 fixedly connected to the outer wall to rotate. The deep soil enters the soil sampling drum 222 through the sampling port. The spiral thrust of the conveying auger 221 pushes the broken soil upward and finally into the soil collector 219. After sampling is completed, the limiting rod 217 can be turned again to seal the sampling port, thus sealing the soil sampling drum 222 to prevent the sample from falling. Then, the lifting platform 2 can be driven to rise in the reverse direction by the motor 1 211. The sample can be obtained by opening the side door of the soil collector 219.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sampling device for deep soil, comprising a lifting support frame (1), characterized in that: The inner wall of the lifting support frame (1) is provided with a lifting platform (2). The outer wall of the lifting platform (2) is fixedly connected with a limiting block (315). The inner wall of the lifting platform (2) is provided with a limiting groove (314). The inner wall of the limiting groove (314) is rotatably connected with a limiting turntable (218). The top of the limiting turntable (218) is fixedly connected with a helical gear (213). The inner wall of the helical gear (213) is rotatably connected with a rotating rod (220). The top of the rotating rod (220) is fixedly connected with a helical gear (214). The outer wall of the rotating rod (220) is fixedly connected with a conveying auger (221). The bottom of the limiting turntable (218) is fixedly connected with a soil collector (219). The bottom of the soil collector (219) is fixedly connected with a soil-collecting rotating cylinder (222).

2. The sampling device for deep soil according to claim 1, characterized in that: The top of the lifting platform (2) is fixedly connected to a motor (211), and the output end of the motor (211) is fixedly connected to a helical gear (212).

3. A sampling device for deep soil according to claim 2, characterized in that: The outer wall of helical gear one (212) is meshed with the outer walls of helical gear two (213) and helical gear three (214) respectively.

4. A sampling device for deep soil according to claim 1, characterized in that: The top of the lifting platform (2) is fixedly connected to a support column (215), and the top of the support column (215) is fixedly connected to a support platform (216). The inner wall of the support platform (216) is threadedly connected to a limit rod (217).

5. A sampling device for deep soil according to claim 1, characterized in that: The inner wall of the lifting support frame (1) is provided with a limiting groove (313), and the outer wall of the limiting block (315) is slidably connected to the inner wall of the limiting groove (313).

Images