Selenium-rich soil detection sampler

Abstract

The utility model relates to the technical field of sampling devices, and particularly discloses a selenium-enriched soil detection sampling device which comprises a base, the lower end face of the base is fixedly connected with an inserting rod, a sampling sleeve matched with a circular groove is installed on the upper end face of the base, and the bottom end of the base is in threaded connection with a sample storage structure through a threaded groove. The sample storage structure comprises a sample box in threaded connection with the interior of the threaded groove, a collection cylinder in threaded connection with the bottom of the sample box and a filter plate arranged in the sample box, the sampling depth can be accurately determined by arranging a graduated scale, and the sampling sleeve is promoted to enter the soil for sampling; the sample box is used for storing taken samples, so that the storage time of the samples is prolonged, the loss of the samples in the transportation and treatment process is reduced, the filter plate can be used for filtering the taken samples, large-particle impurities such as stones, plant residues and gravels in soil are removed, the filtered samples are purer, and subsequent analysis and detection work is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of sampler technology, specifically a sampler for detecting selenium-rich soil. Background Technology

[0002] Selenium is an essential trace element for the human body. It participates in the synthesis of various selenium-containing enzymes and proteins. Among them, glutathione peroxidase catalyzes the conversion of hydrogen peroxide or lipid peroxides into water or various alcohols in the body, eliminating free radical attacks on biological membranes and protecting them from oxidative damage. Selenium also participates in the formation of iodothyronine deiodinase. Selenium can enhance human immunity, promote lymphocyte proliferation, and the synthesis of antibodies and immunoglobulins. Selenium has significant inhibitory and protective effects against various cancers, including colon cancer, skin cancer, liver cancer, and breast cancer. Its intermediate metabolite, methylselenool, has strong anti-cancer activity.

[0003] Nowadays, people are paying more and more attention to foods that are beneficial to health, which requires testing of selenium-enriched products. Generally speaking, selenium-enriched agricultural products refer to those produced in selenium-rich soil environments or crops produced in selenium-enriched environments created using bioengineering technology. Therefore, the selenium-enriched soil environment needs to be tested to see if it meets national standards, so that the selenium-enriched products grown from it can pass the test.

[0004] Currently, the samplers used for selenium-enriched products cannot accurately measure the sampling depth, and the samples taken contain impurities. Direct testing of these impurities will interfere with subsequent analysis of the samples, and samples will be lost during transportation. Therefore, it is necessary to propose a selenium-enriched soil testing sampler to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a selenium-rich soil sampling device with precise sampling depth, extended sample preservation time and reduced sample loss during transportation and processing, and filtered sample collection for subsequent analysis and testing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a selenium-rich soil testing sampler, comprising a base with a rod fixedly connected to its lower end face, a circular groove penetrating through the middle of the upper end face of the base, a sampling sleeve matching the circular groove installed on the upper end face of the base, the sampling sleeve being a hollow structure, a push rod extending to the outside of the sampling sleeve being provided inside the sampling sleeve, one end of the push rod being fixedly connected to a push plate located inside the sampling sleeve; a connecting block being fixedly connected to the outer wall of the sampling sleeve, two sliding sleeves being fixedly connected to the outer wall of the connecting block; a threaded groove being provided at the bottom end of the base, and a sample preservation structure being threadedly connected to the bottom end of the base through the threaded groove; the sample preservation structure comprising a sample box threadedly connected to the inside of the threaded groove, a collection cylinder threadedly connected to the bottom of the sample box, and a filter plate disposed inside the sample box;

[0007] A positioning frame is fixedly connected to the right side of the upper surface of the base and slidably connected to one of the sliding sleeves. A scale is provided on the outer wall of the positioning frame. A guide rod is fixedly connected to the left side of the upper surface of the base and slidably connected to the other sliding sleeve. Two electric push rods with output ends fixedly connected to the two sliding sleeves are installed on the upper surface of the positioning frame.

[0008] In order to filter the sample quickly, as a preferred sampler for selenium-rich soil testing according to this utility model, the sample preservation structure further includes a rotating rod rotatably connected to the upper surface of the filter plate, a toggle plate fixedly connected to the outer wall of the rotating rod, and a servo motor installed on the outer wall of the sample box. A vertically arranged gear set is installed between the output end of the servo motor and the other end of the rotating rod.

[0009] In order to facilitate the disassembly and maintenance of the filter plate and sample box, as a preferred embodiment of the selenium-rich soil testing sampler of this utility model, the outer wall of the sample box is provided with a sealing cover, and the filter plate and the sample box are detachably connected by bolts.

[0010] In order to enable one of the sliding sleeves to slide smoothly on the vertical part of the positioning frame, as a preferred embodiment of the selenium-rich soil testing sampler of this utility model, the vertical part of the positioning frame has a cylindrical structure and the horizontal part has a rectangular structure.

[0011] To check the sample filtration, the sample box of this selenium-rich soil testing sampler is preferably transparent.

[0012] In order to control the operation of the electric actuators and servo motors, in a preferred embodiment of the selenium-rich soil testing sampler of this utility model, a control panel is installed on the upper surface of the positioning frame, and both electric actuators and servo motors are electrically connected to the control panel.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention firstly uses a scale to accurately measure the sampling depth, thereby enabling the sampling sleeve to enter the soil for sampling.

[0015] The sample box preserves the collected samples, extending their storage time and reducing losses during transportation and processing. The filter plate filters the collected samples, removing large particles of impurities from the soil, such as stones, plant debris, and gravel. The filtered samples are purer, which is beneficial for subsequent analysis and testing. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 This is a three-dimensional structural diagram of the sample box of this utility model;

[0019] Figure 4 This is a cross-sectional view of the sample box of this utility model.

[0020] In the diagram: 1. Base; 101. Threaded groove; 102. Insert rod; 2. Sampling sleeve; 201. Push rod; 202. Push plate; 203. Connecting block; 204. Sliding sleeve; 3. Positioning frame; 301. Guide rod; 302. Electric push rod; 303. Scale; 4. Sample box; 401. Collection cylinder; 402. Filter plate; 403. Rotating rod; 404. Actuating plate; 405. Servo motor. Detailed Implementation

[0021] Please see Figures 1 to 4 A selenium-rich soil sampling device includes a base 1 with a rod 102 fixedly connected to its lower end face. A circular groove is formed through the middle of the upper end face of the base 1. A sampling sleeve 2 matching the circular groove is installed on the upper end face of the base 1. The sampling sleeve 2 has a hollow structure. A push rod 201 extending to the outside of the sampling sleeve 2 is provided inside the sampling sleeve 2. One end of the push rod 201 is fixedly connected to a push plate 202 located inside the sampling sleeve 2. A connecting block 203 is fixedly connected to the outer wall of the sampling sleeve 2. Two sliding sleeves 204 are fixedly connected to the outer wall of the connecting block 203. A threaded groove 101 is formed at the bottom end of the base 1. A sample preservation structure is threadedly connected to the bottom end of the base 1 through the threaded groove 101. The sample preservation structure includes a sample box 4 threadedly connected to the inside of the threaded groove 101, a collection cylinder 401 threadedly connected to the bottom of the sample box 4, and a filter plate 402 set inside the sample box 4.

[0022] A positioning frame 3 is fixedly connected to the right side of the upper surface of the base 1 and is slidably connected to one of the sliding sleeves 204. A scale 303 is provided on the outer wall of the positioning frame 3. A guide rod 301 is fixedly connected to the left side of the upper surface of the base 1 and is slidably connected to the other sliding sleeve 204. Two electric push rods 302 with output ends fixedly connected to the two sliding sleeves 204 are installed on the upper surface of the positioning frame 3.

[0023] In this embodiment: when sampling is required, the sample preservation structure is separated from the threaded groove 101, and the base 1 is fixed at the sampling position by the insertion rod 102. The electric push rod 302 is activated, which pushes the sliding sleeve 204 downward, causing the sliding sleeve 204 to move the connecting block 203 downward on the outer wall of the guide rod 301 and the positioning frame 3. The sampling depth can be accurately determined by setting the scale 303, which causes the sampling sleeve 2 to enter the soil for sampling, allowing the sample to enter its interior. After sampling, the electric push rod 302 drives the sliding sleeve 204 upward, causing the sampling sleeve 2 to move out of the soil and into the circular groove.

[0024] Next, after cleaning the soil in the threaded groove 101, the sample box 4 is threaded into the threaded groove 101. The pusher 201 pushes the push plate 202 down, pushing the sample in the sampling sleeve 2 onto the filter plate 402 in the sample box 4. The sample can then be preserved through the sample box 4, extending the preservation time and reducing sample loss during transportation and processing. The filter plate 402 can also filter the sample, removing large particles of impurities in the soil, such as stones, plant debris, and gravel. The filtered sample is purer, which is beneficial for subsequent analysis and testing.

[0025] As a technical optimization of this utility model, the sample preservation structure also includes a rotating rod 403 rotatably connected to the upper end face of the filter plate 402, a toggle plate 404 fixedly connected to the outer wall of the rotating rod 403, and a servo motor 405 installed on the outer wall of the sample box 4. A vertically arranged gear set is installed between the output end of the servo motor 405 and the other end of the rotating rod 403.

[0026] In this embodiment: the servo motor 405 is started, which drives the gear set (the driving gear and the driven gear are fixedly connected to the servo motor 405 and the rotating rod 403 respectively) to rotate. The gear set drives the rotating rod 403 to rotate, which causes the actuating plate 404 to rotate. Then, the actuating plate 404 can actuate the sample on the upper surface of the filter plate 402 while rotating, so as to facilitate rapid filtration of the sample.

[0027] As a technical optimization of this utility model, the outer wall of the sample box 4 is provided with a sealing cover, and the filter plate 402 is detachably connected to the sample box 4 by bolts.

[0028] In this embodiment: opening the sealing cover facilitates the cleaning of large particulate impurities that remain on the filter plate 402, and the filter plate 402 and sample box 4 can be easily disassembled and maintained using bolts.

[0029] As a technical optimization of this utility model, the vertical part of the positioning frame 3 is cylindrical and the horizontal part is rectangular.

[0030] In this embodiment, the vertical part of the positioning frame 3 is cylindrical and the horizontal part is rectangular, which allows one of the sliding sleeves 204 to slide smoothly on the vertical part of the positioning frame 3.

[0031] As a technical optimization of this utility model, the sample box 4 has a transparent structure.

[0032] In this embodiment, the sample box 4 is transparent, making it easy to observe the sample filtration process.

[0033] As a technical optimization of this utility model, a control panel is installed on the upper surface of the positioning frame 3, and the two electric push rods 302 and the servo motor 405 are electrically connected to the control panel.

[0034] In this embodiment, the operation of the two electric actuators 302 and the servo motor 405 can be controlled via the control panel.

[0035] Working principle: First, connect the equipment to an external power source. When sampling is required, separate the sample storage structure from the threaded groove 101. Then, fix the base 1 at the sampling position via the insertion rod 102. Start the electric push rod 302, which pushes the sliding sleeve 204 downward. This causes the sliding sleeve 204 to move the connecting block 203 downward on the outer wall of the guide rod 301 and the positioning frame 3. The depth of sampling can be accurately determined by setting the scale 303, which causes the sampling sleeve 2 to enter the soil for sampling. After sampling, the electric push rod 302 drives the sliding sleeve 204 upward, causing the sampling sleeve 2 to move out of the soil and into the circular groove.

[0036] Next, the insertion rod 102 is removed from the soil, and the soil in the threaded groove 101 is cleaned. The sample box 4 is then threaded into the threaded groove 101, and the pusher 201 pushes the push plate 202 down, causing the sample in the sampling sleeve 2 to fall onto the filter plate 402 in the sample box 4. The sample can then be preserved in the sample box 4 to extend the preservation time and reduce sample loss during transportation and processing. The servo motor 405 is then activated, causing the gear set to rotate, which in turn causes the rotating rod 403 to rotate, causing the actuating plate 404 to rotate. As the actuating plate 404 rotates, it actuates the sample on the upper surface of the filter plate 402, causing the sample to be filtered quickly and removing large particles of impurities from the soil. The filtered sample enters the collection cylinder 401, and by rotating the collection cylinder 401, the filtered sample can be taken out for testing.

[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 selenium-rich soil detection sampler, comprising a base (1) with a plug rod (102) fixedly connected to the lower end face, a circular groove being formed through the middle of the upper end face of the base (1), a sampling sleeve (2) being installed on the upper end face of the base (1) and matching the circular groove, the sampling sleeve (2) being a hollow structure, an extension rod (201) being arranged inside the sampling sleeve (2) and extending to the outside of the sampling sleeve (2), and a push plate (202) being fixedly connected to one end of the extension rod (201) and located inside the sampling sleeve (2); characterized in that: The outer side wall of the sampling sleeve (2) is fixedly connected with a connecting block (203), the outer wall of the connecting block (203) is fixedly connected with two sliding sleeves (204), the bottom end of the base (1) is provided with a threaded groove (101), and the bottom end of the base (1) is threadedly connected with a sample storage structure through the threaded groove (101), the sample storage structure comprises a sample box (4) threadedly connected in the threaded groove (101), a collection cylinder (401) threadedly connected to the bottom of the sample box (4), and a filter plate (402) arranged in the sample box (4). ​ The right side of the upper end surface of the base (1) is fixedly connected with a positioning frame (3) which is slidably connected with one of the sliding sleeves (204), and the outer wall of the positioning frame (3) is provided with a scale (303); the left side of the upper end surface of the base (1) is fixedly connected with a guide rod (301) which is slidably connected with the other sliding sleeve (204); and the upper end surface of the positioning frame (3) is mounted with two electric push rods (302) whose output ends are fixedly connected with the two sliding sleeves (204) respectively.

2. The selenium-enriched soil detection sampler according to claim 1, characterized in that: The sample storage structure further comprises a rotating rod (403) which is rotatably connected to the upper end surface of the filter plate (402), a push plate (404) which is fixedly connected to the outer wall of the rotating rod (403), and a servo motor (405) which is mounted on the outer wall of the sample box (4); and a gear set which is arranged vertically is mounted between the output end of the servo motor (405) and the other end of the rotating rod (403).

3. The selenium-enriched soil detection sampler according to claim 1, characterized in that: The outer wall of the sample box (4) is provided with a sealing cover, and the filter plate (402) and the sample box (4) are detachably connected through bolts.

4. The selenium-enriched soil detection sampler according to claim 1, characterized in that: The vertical part of the positioning frame (3) is in a cylindrical structure, and the transverse part is in a rectangular structure.

5. The selenium-enriched soil detection sampler of claim 1, wherein: The sample box (4) is in a transparent structure.

6. The selenium-enriched soil detection sampler according to claim 2, characterized in that: The upper end surface of the positioning frame (3) is mounted with a control panel, and the two electric push rods (302) and the servo motor (405) are electrically connected with the control panel.

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