Improved structure of soil monitoring sampler

Abstract

The utility model relates to the technical field of soil monitoring, and discloses an improved structure of a soil quality monitoring sampler, which comprises a mounting shell, an upper sampling tube is fixed on the surface of the mounting shell, a lower sampling tube is arranged below the upper sampling tube, two extension plates are fixed on the surface of the lower sampling tube, two sliding chutes are formed in the surface of the mounting shell, and the two extension plates are arranged in the sliding chutes. The extension plate is slidably connected with the surface of the sliding groove, a pressing block slidably penetrates through the top of the mounting shell, a compression spring is fixed to the bottom of the pressing block, the bottom of the compression spring is fixedly connected with the bottom of the inner wall of the mounting shell, two connecting plates are fixed to the bottom of the pressing block, and the surfaces of the connecting plates are fixedly connected with the surface of the extension plate. And a pushing mechanism is arranged on one side of the mounting shell. The upper sampling tube and the lower sampling tube can be rapidly separated and closed, a conventional soil sample can be conveniently taken out, soft soil can be compacted through a pre-separation and automatic closing mechanism, the sample is prevented from loosening and falling off, and the sampling success rate is remarkably increased.

Description

Technical Field

[0001] This utility model relates to the field of soil monitoring technology, specifically to an improved structure of a soil monitoring sampler. Background Technology

[0002] Soil monitoring is a process of systematically measuring, analyzing, and evaluating various physical, chemical, and biological properties of soil, as well as related environmental factors. It aims to obtain information on soil quality, condition, and changes. Soil samples need to be obtained during soil monitoring, which requires the use of soil monitoring samplers.

[0003] Utility model patent CN221745586U discloses a soil monitoring sampler, including a lower soil monitoring sampling tube. A higher soil monitoring sampling tube is hinged to the top of the lower tube, and a handle box is bolted to the right side of the lower tube. A sector-shaped gear is rotatably connected inside the handle box. A small gear meshes with the teeth on the left side of the sector-shaped gear, and a large conical gear is bolted to the rear of the small gear. The large conical gear is rotatably connected to the handle box. Soil samples are obtained by inserting the lower and upper soil monitoring sampling tubes into the ground. Through structural transmission, the upper soil monitoring sampling tube can rotate, causing it to lift upwards, thus exposing the internal soil sample. No shaking is required, and the soil sample will not be mixed or disordered.

[0004] However, when separating the upper and lower soil monitoring sampling tubes of the above-mentioned sampler, the user needs to rotate the handwheel by hand. However, due to the small size of the handwheel and the small contact area with the fingers, it is inconvenient for the user to operate the handwheel and it is difficult to rotate the handwheel quickly. This makes it inconvenient to separate the upper and lower soil monitoring sampling tubes. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an improved structure for a soil monitoring sampler to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] An improved structure for a soil monitoring sampler includes a mounting shell. An upper sampling tube is fixed to the surface of the mounting shell, and a lower sampling tube is disposed below the upper sampling tube. Two extension plates are fixed to the surface of the lower sampling tube. Two sliding grooves are formed on the surface of the mounting shell, and the extension plates are slidably connected to the surfaces of the sliding grooves. A pressure block is slidably passed through the top of the mounting shell, and a compression spring is fixed to the bottom of the pressure block. The bottom of the compression spring is fixedly connected to the bottom of the inner wall of the mounting shell. Two connecting plates are fixed to the bottom of the pressure block, and the surfaces of the connecting plates are fixedly connected to the surfaces of the extension plates. A pushing mechanism is provided on one side of the mounting shell.

[0008] Preferably, the pushing mechanism includes a lead screw, which is rotatably connected to the surface of the mounting housing. A sleeve is threaded onto the surface of the lead screw, and a limit plate is fixed to the surface of the sleeve.

[0009] Preferably, four guide rods are fixed on the surface of the lead screw, and a through groove is opened on the surface of the sleeve to allow the guide rods to pass through. The guide rods are slidably connected to the surface of the through groove.

[0010] Preferably, a pusher is fixed to the bottom of the connecting plate, and the surface of the pusher slides through the mounting shell.

[0011] Preferably, an L-shaped baffle is fixed at the bottom of the lower sampling tube, and the surface of the L-shaped baffle is slidably connected to the surface of the mounting shell.

[0012] Preferably, the compression spring has a telescopic rod inside, the bottom of the telescopic rod is fixedly connected to the bottom of the inner wall of the mounting housing, and the top of the telescopic rod is fixedly connected to the bottom of the pressure block.

[0013] Preferably, the lower sampling tube has two sealing plates fixed at the top, and the upper sampling tube has a sealing groove at the bottom for inserting the sealing plates.

[0014] Compared with existing technologies, the beneficial effects of the improved structure of this utility model soil monitoring sampler are:

[0015] First, the linkage between the pressure block and the spring can quickly separate and close the upper and lower sampling tubes, which can not only meet the needs of convenient extraction of conventional soil samples, but also compact the loose soil through the pre-separation and automatic closing mechanism to prevent the samples from falling off, thus significantly improving the sampling success rate.

[0016] Secondly, the position of the entire sampler can be changed by the setting of the pushing mechanism. By changing its position, the insertion depth of the sampler in the soil can be precisely adjusted. For example, when it is necessary to increase the sampling depth, the limiting plate is pressed down and the screw is rotated to push the sampler further into the soil. This design can also be used when the soil is hard. By pressing down the limiting plate and rotating the screw again, the sampler can be slowly pressed down by the thread. Compared with direct insertion into the soil, this method of turning the threaded rotation into linear motion will provide greater axial stress, thus making it easier for the sampler to be inserted into harder soil for sampling. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the present invention after operation;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This is a partial split-section structural diagram of the present invention.

[0021] The components are: 1. Mounting shell; 2. Upper sampling tube; 3. Lower sampling tube; 4. Pushing mechanism; 401. Lead screw; 402. Sleeve; 403. Limiting plate; 404. Guide rod; 5. Pressure block; 6. Extension plate; 7. Slide groove; 8. Connecting plate; 9. Compression spring; 10. L-shaped baffle; 11. Pushing frame; 12. Enclosing plate; 13. Telescopic rod. Detailed Implementation

[0022] The specific embodiments of this utility model will now be described in further detail with reference to the accompanying drawings.

[0023] Please see Figure 1-4 An improved structure for a soil monitoring sampler includes a mounting shell 1, an upper sampling tube 2 fixed to the surface of the mounting shell 1, a lower sampling tube 3 located below the upper sampling tube 2, two extension plates 6 fixed to the surface of the lower sampling tube 3, two sliding grooves 7 formed on the surface of the mounting shell 1, the extension plates 6 being slidably connected to the surfaces of the sliding grooves 7, a pressure block 5 slidably passing through the top of the mounting shell 1, a compression spring 9 fixed to the bottom of the pressure block 5, the bottom of the compression spring 9 being fixedly connected to the bottom of the inner wall of the mounting shell 1, two connecting plates 8 fixed to the bottom of the pressure block 5, the surfaces of the connecting plates 8 being fixedly connected to the surfaces of the extension plates 6, and a pushing mechanism 4 located on one side of the mounting shell 1.

[0024] Using the above technical solution, when soil sampling is required, the sampler is first inserted into the soil to be monitored. The soil will naturally enter the upper sampling tube 2 and the lower sampling tube 3, completing the initial soil sample collection. When it is necessary to remove the soil sample from the upper sampling tube 2 and the lower sampling tube 3, the pressure block 5 is pressed. The pressure block 5 moves downwards, compressing the compression spring 9 at the bottom, allowing the spring to store elastic potential energy. Simultaneously, the two connecting plates 8 fixed to the bottom of the pressure block 5 move downwards along with the pressure block 5. Since the surface of the connecting plate 8 is fixedly connected to the surface of the extension plate 6, and the extension plate 6 is slidably connected to the slide groove 7, the downward movement of the connecting plate 8 will cause the extension plate 6 to slide downwards along the slide groove 7, thereby... The lower sampling tube 3, which is fixedly connected to the extension plate 6, moves downward to separate the upper sampling tube 2 and the lower sampling tube 3. This design makes it easier to remove the soil inside the upper sampling tube 2 and the lower sampling tube 3 due to the separation of the sampling tubes. When the pressure block 5 is released, the compression spring 9 releases its elastic potential energy and pushes the pressure block 5 upward to reset. During the reset process of the pressure block 5, the lower sampling tube 3 moves upward through the connecting plate 8 and the extension plate 6, and re-closes with the upper sampling tube 2 to prepare for the next sampling. In addition, the pushing mechanism 4 set on one side of the mounting shell 1 can play an auxiliary role. The pushing mechanism 4 can fine-tune the insertion depth or position of the entire sampler in the soil to meet different sampling needs.

[0025] The pushing mechanism 4 includes a lead screw 401, which is rotatably connected to the surface of the mounting housing 1. A sleeve 402 is threadedly connected to the surface of the lead screw 401, and a limit plate 403 is fixed on the surface of the sleeve 402.

[0026] Through the above technical solution, during soil monitoring sampling, when fine-tuning of the sampler is required, rotating the lead screw 401 will cause the sleeve 402 to move linearly along the axial direction of the lead screw 401, based on the principle of threaded transmission, since the surface of the lead screw 401 is threadedly connected to the sleeve 402. As the sleeve 402 moves, the limiting plate 403 fixed to the surface of the sleeve 402 will also move synchronously. The limiting plate 403 can contact the soil surface or other external structures, or it can be manually fixed by hand. The change in position allows for precise adjustment of the insertion depth of the entire sampler in the soil. For example, when it is necessary to increase the sampling depth, pressing down the limiting plate 403 and rotating the screw 401 pushes the sampler further into the soil. This design also allows the sampler to be slowly pressed down by the thread by pressing down the limiting plate 403 and rotating the screw 401 again when the soil is hard. Compared to direct insertion into the soil, this method of turning the threaded rotation into linear motion will provide greater axial stress, thus facilitating the insertion of the sampler into harder soil for sampling operations.

[0027] Four guide rods 404 are fixed on the surface of the lead screw 401, and a through groove is opened on the surface of the housing 402 to allow the guide rods 404 to pass through. The guide rods 404 are slidably connected to the surface of the through groove.

[0028] Through the above technical solution, during the process of the lead screw 401 rotating and driving the sleeve 402 to make linear motion, the sliding connection between the guide rod 404 and the through groove on the surface of the sleeve 402 can restrict the sleeve 402 from rotating with the lead screw 401. The four guide rods 404 constrain and guide the sleeve 402 from multiple directions, making the movement trajectory of the sleeve 402 more accurate and effectively reducing the swaying and offset of the sleeve 402 in the horizontal direction.

[0029] A pusher frame 11 is fixed to the bottom of the connecting plate 8, and the surface of the pusher frame 11 slides through the mounting shell 1.

[0030] With the above technical solution, when relatively soft soil is sampled inside the upper sampling tube 2 and the lower sampling tube 3, such that the lower sampling tube 3 and the upper sampling tube 2 cannot be completely closed by the compression spring 9, the lower sampling tube 3 and the upper sampling tube 2 can be forced to close by pushing the pusher frame 11, thereby further compacting the soft soil and preventing the soft soil from scattering during transportation or transfer.

[0031] An L-shaped baffle 10 is fixed at the bottom of the lower sampling tube 3, and the surface of the L-shaped baffle 10 is slidably connected to the surface of the mounting shell 1.

[0032] Through the above technical solution, the L-shaped baffle 10 slides to cover the opening of the chute 7, forming a dynamic shielding structure. During the sampling process, soil particles, moisture or other impurities are blocked from entering, preventing them from getting stuck in the contact surface between the chute 7 and the extension plate 6, reducing the risk of mechanical jamming. It is especially suitable for damp, dusty or loose soil environments, preventing the chute 7 from increasing friction due to dirt accumulation, ensuring that the linear movement of the extension plate 6 and the lower sampling tube 3 is always smooth, and avoiding sampling failure caused by mechanical jamming.

[0033] The compression spring 9 has a telescopic rod 13 inside. The bottom of the telescopic rod 13 is fixedly connected to the bottom of the inner wall of the mounting shell 1, and the top of the telescopic rod 13 is fixedly connected to the bottom of the pressure block 5.

[0034] Through the above technical solution, the compression spring 9 tends to bend to one side during the compression and rebound process, especially when subjected to greater pressure. The telescopic rod 13 is located inside the compression spring 9 and can support and constrain the compression spring 9, limiting the compression spring 9 to only extend and retract along the axial direction and preventing it from bending laterally. This ensures that the compression spring 9 always works in the predetermined direction, maintains the stability of its elastic performance, and extends the service life of the compression spring 9.

[0035] The lower sampling tube 3 has two sealing plates 12 fixed at the top, and the upper sampling tube 2 has a sealing groove at the bottom that is fitted into the sealing plates 12.

[0036] Through the above technical solution, the sealing groove provides a clear insertion path for the sealing plate 12, ensuring that the upper sampling tube 2 and the lower sampling tube 3 are automatically aligned when closed, avoiding structural deformation or incomplete closure due to misalignment. Especially in soft soil, this design can reduce the displacement of the sampling tube caused by lateral force and ensure the reliability of the sampling operation.

[0037] Working principle: In the conventional soil sampling process, the device is vertically inserted into the soil. The soil enters the interior through the upper sampling tube 2 and the lower sampling tube 3 to complete the initial sample collection. Then, the sampling tubes are separated. First, the pressure block 5 is pressed, and the compression spring 9 stores energy. The extension plate 6 is driven by the connecting plate 8 to slide along the slide groove 7, so that the lower sampling tube 3 is separated downwards to facilitate the removal of the sample. After the sample is removed, the pressure block 5 is released, and the compression spring 9 rebounds to push the lower sampling tube 3 back to its original position, closing with the upper sampling tube 2. The sealing plate 12 is embedded in the sealing groove to form a seal.

[0038] When sampling soft soil, press the pressure block 5 beforehand to separate the lower sampling tube 3 from the upper sampling tube 2 by a certain distance. After inserting the tube into the soil, release the pressure block 5. The compression spring 9 will rebound and drive the lower sampling tube 3 to close. The soil is squeezed by the lower sampling tube 3, so that it is compacted during the closing process to prevent it from loosening and falling off. If the compression spring 9 cannot close completely, the pusher frame 11 can be pushed to force it to close, further compacting the sample.

[0039] When sampling in harder soil, the device is slightly inserted into the soil, and then the mounting shell 1 is slowly pressed down by pressing down the limiting plate 403 and rotating the screw 401. Compared with direct insertion into the soil, this method of turning the screw rotation into linear motion will provide greater axial stress, thus making it easier for the sampler to be inserted into harder soil for sampling.

[0040] It should be noted that although specific embodiments of the present 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 specific embodiments without departing from the principles and spirit. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An improved structure for a soil monitoring sampler, comprising a mounting shell (1), characterized in that: An upper sampling tube (2) is fixed on the surface of the mounting shell (1). A lower sampling tube (3) is provided below the upper sampling tube (2). Two extension plates (6) are fixed on the surface of the lower sampling tube (3). Two sliding grooves (7) are opened on the surface of the mounting shell (1). The extension plates (6) are slidably connected to the surfaces of the sliding grooves (7). A pressure block (5) is slidably passed through the top of the mounting shell (1). A compression spring (9) is fixed at the bottom of the pressure block (5). The bottom of the compression spring (9) is fixedly connected to the bottom of the inner wall of the mounting shell (1). Two connecting plates (8) are fixed at the bottom of the pressure block (5). The surfaces of the connecting plates (8) are fixedly connected to the surfaces of the extension plates (6). A pushing mechanism (4) is provided on one side of the mounting shell (1).

2. The improved structure of a soil monitoring sampler according to claim 1, characterized in that: The pushing mechanism (4) includes a lead screw (401), which is rotatably connected to the surface of the mounting shell (1). A sleeve (402) is threadedly connected to the surface of the lead screw (401), and a limit plate (403) is fixed on the surface of the sleeve (402).

3. The improved structure of a soil monitoring sampler according to claim 2, characterized in that: Four guide rods (404) are fixed on the surface of the lead screw (401), and a through groove is opened on the surface of the sleeve (402) to allow the guide rods (404) to pass through. The guide rods (404) are slidably connected to the surface of the through groove.

4. The improved structure of a soil monitoring sampler according to claim 1, characterized in that: The bottom of the connecting plate (8) is fixed with a pusher (11), and the surface of the pusher (11) slides through the mounting shell (1).

5. The improved structure of a soil monitoring sampler according to claim 1, characterized in that: The bottom of the lower sampling tube (3) is fixed with an L-shaped baffle (10), and the surface of the L-shaped baffle (10) is slidably connected to the surface of the mounting shell (1).

6. The improved structure of a soil monitoring sampler according to claim 1, characterized in that: The compression spring (9) is provided with a telescopic rod (13) inside. The bottom of the telescopic rod (13) is fixedly connected to the bottom of the inner wall of the mounting shell (1), and the top of the telescopic rod (13) is fixedly connected to the bottom of the pressure block (5).

7. The improved structure of a soil monitoring sampler according to claim 1, characterized in that: The lower sampling tube (3) has two sealing plates (12) fixed at the top, and the upper sampling tube (2) has a sealing groove at the bottom for fitting the sealing plates (12).

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