Soil sampling device for forestry ecological construction

Abstract

The utility model relates to the technical field of soil sampling, in particular to a soil sampling device for forestry ecological construction, which comprises a sampling tube, lower sealing sheets are uniformly and rotatably mounted at the bottom end of the inner side wall of the sampling tube, upper sealing sheets are rotatably mounted on the lower sealing sheets, a compression ring is slidably mounted on the inner side wall of the sampling tube, and a lower sealing sheet is rotatably mounted on the compression ring. The pressure ring is rotatably connected with the upper sealing sheet, a plugging sleeve is arranged on the inner side wall of the sampling tube, a pressure rod is slidably mounted on the sampling tube, a transmission rod is mounted between the pressure rod and the pressure ring, and a sampling cover is mounted at the side end of the sampling tube; after the sampling tube is inserted into soil, the opening at the bottom end of the sampling tube can be forcibly closed, a loose desertification soil sample is reliably blocked in the tube, and meanwhile, due to the side opening type design, after the sampling tube is taken out, soil at different depths can be directly observed and accurately scraped in a layered manner through the long opening in the side wall without disturbing the sample; therefore, the desertification soil sampler is suitable for accurate sampling of desertification soil.

Description

Technical Field

[0001] This utility model relates to the field of soil sampling technology, and in particular to a soil sampling device for forestry ecological construction. Background Technology

[0002] In forestry ecological construction, comprehensive and accurate soil sampling and analysis plays a crucial role in understanding forest soil conditions and formulating scientific ecological construction plans. In practical applications, soil sampling devices used for forestry ecological construction typically require the following technologies:

[0003] 1. Sampling device: It adopts a device that can penetrate deep into the soil and obtain representative samples, which can ensure the integrity and depth of the samples;

[0004] 2. Sample processing facility: Equipped with equipment for preliminary processing of collected soil samples to facilitate subsequent analysis.

[0005] 3. Depth control mechanism: In order to obtain soil samples at different depths, a mechanism is needed to precisely control the sampling depth.

[0006] Forestry ecological construction is beneficial to improving soil desertification. When soil undergoes long-term wind erosion, water erosion and other processes, a large amount of organic matter and nutrients in the soil are lost, the aggregate structure between soil particles is destroyed, and the soil becomes loose, with poor water and fertilizer retention capacity. Rainwater or irrigation water can easily seep in or run off and cannot be effectively stored in the soil.

[0007] Existing direct-insertion soil sampling devices work by allowing the soil to adhere to the inside of the sampling tube after it is pulled out, thus carrying the soil with it. However, when sampling desertified soils, the soil's loose structure and lack of moisture result in insufficient adhesion to the tube wall, making it difficult to effectively carry the soil out when the tube is pulled out. Furthermore, the rotating spiral structure of spiral sampling tubes can disturb and mix soil samples at shallow depths (desertified soils are looser and more fluid), making it difficult to accurately determine the depth of the sample. Therefore, these devices are unsuitable for sampling desertified soils. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a soil sampling device for forestry ecological construction. It solves the problem of existing direct-insertion soil sampling devices. In these devices, when the sampling tube is pulled out, the soil's viscosity allows it to adhere to the inside of the tube and be carried out with it. However, when sampling desertified soils, due to the loose soil structure and lack of moisture, the soil's adhesion to the tube wall is insufficient, making it difficult to effectively carry the soil out when the tube is pulled out. Furthermore, the spiral sampling tube, due to its rotating spiral structure, disturbs and mixes soil samples at shallow depths (desertified soils are looser and more fluid), making it difficult to effectively determine the depth of the sample. Therefore, these devices are unsuitable for sampling desertified soils.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] A soil sampling device for forestry ecological construction includes a sampling tube, a lower sealing plate uniformly rotatably mounted on the bottom of the inner wall of the sampling tube, an upper sealing plate rotatably mounted on the lower sealing plate, a pressure ring slidably mounted on the inner wall of the sampling tube, the pressure ring and the upper sealing plate being rotatably connected, a sealing sleeve provided on the inner wall of the sampling tube, the bottom end of the sealing sleeve being fixedly connected to the sampling tube, the top end of the sealing sleeve being fixedly connected to the pressure ring, a pressure rod slidably mounted on the sampling tube, a transmission rod being installed between the pressure rod and the pressure ring, and a sampling cap mounted on the side end of the sampling tube.

[0011] Preferably, a clamping plate is fixedly installed at the bottom of the sampling cover.

[0012] Preferably, the sampling tube has a slot and a threaded hole.

[0013] Preferably, a threaded rod is threaded onto the threaded hole.

[0014] Preferably, the sampling tube is symmetrically and rotatably equipped with pressure handles.

[0015] Preferred: The sampling tube is symmetrically mounted with a limiter.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The bottom mechanical closing mechanism, consisting of a pressure rod, transmission rod, pressure ring, upper sealing plate, and lower sealing plate, can forcibly close the bottom opening of the sampling tube after it is inserted into the soil, reliably sealing the loose desertified soil sample inside the tube. This effectively solves the technical problem of the sample falling off due to insufficient adhesion during the tube removal process. At the same time, its side-opening design (sampling cap, clamping plate, clamping groove, threaded hole, and threaded rod) allows for direct observation and precise scraping of soil at different depths through the long opening on the side wall after the sampling tube is removed without disturbing the sample. This perfectly avoids the soil layer mixing problem caused by spiral sampling, making it suitable for accurate sampling of desertified soil. Attached Figure Description

[0018] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0019] Figure 1 This is an overall structural diagram of the present invention;

[0020] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A;

[0022] Figure 4 This is a partial structural diagram of the present invention;

[0023] Figure 5 This is a structural diagram of the sampling cover of this utility model.

[0024] Legend: 1. Sampling tube; 2. Lower sealing plate; 3. Upper sealing plate; 4. Pressure ring; 5. Sealing sleeve; 6. Pressure rod; 7. Transmission rod; 8. Sampling cover; 9. Clamping plate; 10. Clamping groove; 11. Threaded hole; 12. Threaded rod; 13. Pressure handle; 14. Limiting clip. Detailed Implementation

[0025] This application provides a soil sampling device for forestry ecological construction, effectively solving the problems of existing direct-insertion soil sampling devices. In these devices, when the sampling tube is pulled out, the soil's viscosity allows it to adhere to the inside of the tube and be carried out with it. However, when sampling desertified soils, due to the loose soil structure and lack of moisture, the soil's adhesion to the tube wall is insufficient, making it difficult to effectively carry the soil out when the tube is pulled out. Furthermore, with spiral sampling tubes, the rotating spiral structure disturbs and mixes soil samples at shallow depths (desertified soils are looser and more fluid), making it difficult to effectively determine the depth of the sample. This invention addresses the technical challenges of sampling desertified soils. A bottom mechanical closure mechanism, consisting of a pressure rod, transmission rod, pressure ring, upper sealing plate, and lower sealing plate, forcibly closes the bottom opening of the sampling tube after it is inserted into the soil. This reliably seals the loose desertified soil sample inside the tube, effectively solving the technical problem of sample detachment due to insufficient adhesion during tube removal. Furthermore, its side-opening design (sampling cap, clamping plate, clamping groove, threaded hole, and threaded rod) allows for direct observation and precise layering of soil at different depths through the long side opening after the sampling tube is removed, without disturbing the sample. This perfectly avoids the soil layer mixing problem caused by spiral sampling, making it suitable for accurate sampling of desertified soils.

[0026] Example

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the technical solution in this application effectively solves the problem of existing direct-insertion soil sampling devices. When sampling, the soil's viscosity allows it to adhere to the inside of the sampling tube after the tube is pulled out, and it is carried out with the tube, completing the sampling. However, when sampling desertified soil, due to the loose soil structure and lack of moisture, the soil's adhesion to the tube wall is insufficient, making it difficult to effectively carry the soil out when the tube is pulled out. Furthermore, the spiral sampling tube, due to its rotating spiral structure, disturbs and mixes soil samples at shallow depths (desertified soil has a looser structure and greater fluidity), making it difficult to effectively determine the depth of the sample. Therefore, it is unsuitable for sampling operations in desertified soil. The overall approach is as follows:

[0028] To address the problems existing in the prior art, this utility model provides a soil sampling device for forestry ecological construction, including a sampling tube 1, a lower sealing plate 2 uniformly and rotatably installed at the bottom of the inner side wall of the sampling tube 1, an upper sealing plate 3 rotatably installed on the lower sealing plate 2, and a pressure ring 4 slidably installed on the inner side wall of the sampling tube 1, with the pressure ring 4 and the upper sealing plate 3 rotatably connected.

[0029] A sealing sleeve 5 is provided on the inner wall of the sampling tube 1. The bottom end of the sealing sleeve 5 is fixedly connected to the sampling tube 1, and the top end of the sealing sleeve 5 is fixedly connected to the pressure ring 4. A pressure rod 6 is slidably installed on the sampling tube 1. A transmission rod 7 is installed between the pressure rod 6 and the pressure ring 4. A sampling cover 8 is installed on the side end of the sampling tube 1.

[0030] A clamping plate 9 is fixedly installed at the bottom of the sampling cover 8. A clamping groove 10 is opened on the sampling tube 1. A threaded hole 11 is opened on the sampling tube 1. A threaded rod 12 is threadedly installed on the threaded hole 11. A pressure handle 13 is symmetrically rotated on the sampling tube 1. A limit card 14 is symmetrically rotated on the sampling tube 1.

[0031] Sampling tube 1: As the main body of the entire sampling device, it is used to insert into the soil to obtain samples and is the supporting component of the entire sampling operation;

[0032] Lower sealing strip 2: When the pressure ring 4 slides down, it rotates together with the upper sealing strip 3, and its connection point moves toward the center of the sampling tube 1. It works with the sealing sleeve 5 to seal the bottom of the sampling tube 1 and prevent the soil sample from falling off when the sampling tube 1 is pulled out.

[0033] Upper sealing strip 3: Under the action of the pressure ring 4, it moves together with the lower sealing strip 2 to seal the opening at the bottom of the sampling tube 1, ensuring that the soil sample is retained in the sampling tube 1 during the sampling process;

[0034] Pressure ring 4: When pressed down, it pushes the lower sealing plate 2 and the upper sealing plate 3 to rotate, thereby sealing the bottom opening of the sampling tube 1. It is a key component for controlling the bottom sealing structure. At the same time, it is fixedly connected to the top of the sealing sleeve 5, which drives the sealing sleeve 5 to move.

[0035] Sealing sleeve 5: When the lower sealing strip 2 and the upper sealing strip 3 rotate, it is pushed and folded to help seal the bottom of the sampling tube 1, enhance the sealing effect, and prevent soil sample leakage;

[0036] Pressure rod 6: Pressing down pressure rod 6 can push pressure ring 4 down, thereby controlling the movement of lower sealing plate 2 and upper sealing plate 3, and realizing the sealing operation of the bottom end of sampling tube 1;

[0037] Transmission rod 7: Transmits the force of the pressure rod 6 downward to the pressure ring 4, so that the pressure ring 4 can slide on the inner wall of the sampling tube 1, thereby driving the lower sealing plate 2 and the upper sealing plate 3 to complete the sealing of the bottom of the sampling tube 1;

[0038] Sampling cover 8: It cooperates with the slot 10 on the sampling tube 1. The sampling cover 8 can be pulled out by unscrewing the threaded rod 12, opening the side opening of the sampling tube 1, which facilitates sampling of soil at different depths in the sampling tube 1 without disturbing the sample.

[0039] Card plate 9: It cooperates with the slot 10 on the sampling tube 1 to fix the sampling cover 8 and ensure that the sampling cover 8 will not be accidentally opened during the sampling process;

[0040] Slot 10: Cooperates with the card plate 9 at the bottom of the sampling cover 8 to position and fix the sampling cover 8, so that the sampling cover 8 is installed firmly and the sampling process is sealed.

[0041] Threaded hole 11: It is threadedly engaged with threaded rod 12. Tightening threaded rod 12 can firmly fix sampling cover 8 on sampling tube 1 and prevent sampling cover 8 from loosening during sampling.

[0042] Threaded rod 12: By tightening or unscrewing the threaded rod 12, the sampling cover 8 can be fixed or loosened, making it easy to open or close the side opening of the sampling tube 1;

[0043] Handle 13: When the user holds the handle 13 and presses it down, the sampling tube 1 can be inserted into the soil, providing a point of force for the sampling tube 1 to be inserted into the soil;

[0044] Limiting clip 14: After the pressure rod 6 is pressed down to close the bottom of the sampling tube 1, the limiting clip 14 is rotated to lock the pressure rod 6, preventing the pressure rod 6 from resetting, ensuring that the bottom of the sampling tube 1 remains closed, and ensuring that the soil sample will not leak during the sampling process.

[0045] Working principle:

[0046] In use, rotate and unfold the two pressure handles 13, then grasp the pressure handles 13 and press down firmly to insert the sampling tube 1 into the soil. After the sampling tube 1 is inserted, the soil will enter the interior of the sampling tube 1 through the opening at the bottom end of the sampling tube 1. Press down on the pressure rod 6, causing the pressure rod 6 to push the pressure ring 4 downward through the transmission rod 7. The downward movement of the pressure ring 4 will cause the lower sealing plate 2 and the upper sealing plate 3 to rotate, that is, the connection between the lower sealing plate 2 and the upper sealing plate 3 will move towards the center of the sampling tube 1, which, together with the sealing sleeve 5, completes the sealing of the bottom end of the sampling tube 1 (the sealing sleeve 5 is sealed by the lower sealing plate 2 and the upper sealing plate 3). Push the sealing plate 3 to fold, so that the bottom end of the sampling tube 1 is closed. Press down the pressure rod 6 and rotate the two limit clips 14 so that the limit clips 14 lock the pressure rod 6 and keep the bottom end of the sampling tube 1 closed. Then pull the sampling tube 1 upward. At this time, the soil inside the sampling tube 1 will be taken out along with the sampling tube 1. After pulling out the sampling tube 1, lay it flat (with the sampling cover 8 facing up), and then unscrew the threaded rod 12. After unscrewing the threaded rod 12, pull the sampling cover 8 diagonally upward to open the opening at the side end of the sampling tube 1. Sampling of soil at different depths can be performed through the opening at the side end of the sampling tube 1.

[0047] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A soil sampling device for forestry ecological construction, comprising a sampling tube (1), characterized in that, The sampling tube (1) has a lower sealing plate (2) evenly rotatably mounted on the bottom of its inner wall. An upper sealing plate (3) is rotatably mounted on the lower sealing plate (2). A pressure ring (4) is slidably mounted on the inner wall of the sampling tube (1). The pressure ring (4) and the upper sealing plate (3) are rotatably connected. A sealing sleeve (5) is provided on the inner wall of the sampling tube (1). The bottom end of the sealing sleeve (5) is fixedly connected to the sampling tube (1). The top end of the sealing sleeve (5) is fixedly connected to the pressure ring (4). A pressure rod (6) is slidably mounted on the sampling tube (1). A transmission rod (7) is installed between the pressure rod (6) and the pressure ring (4). A sampling cap (8) is installed on the side end of the sampling tube (1).

2. The soil sampling device for forestry ecological construction as described in claim 1, characterized in that, A clamping plate (9) is fixedly installed at the bottom of the sampling cover (8).

3. The soil sampling device for forestry ecological construction as described in claim 1, characterized in that, The sampling tube (1) is provided with a slot (10) and a threaded hole (11).

4. A soil sampling device for forestry ecological construction as described in claim 3, characterized in that, A threaded rod (12) is threaded onto the threaded hole (11).

5. A soil sampling device for forestry ecological construction as described in claim 1, characterized in that, A pressure handle (13) is symmetrically and rotatably mounted on the sampling tube (1).

6. A soil sampling device for forestry ecological construction as described in claim 1, characterized in that, A limiter (14) is symmetrically rotated and installed on the sampling tube (1).

Images