Sampling device for restoring heavy metal soil in sorghum planting

By designing a sampling device for heavy metal soil repair for sorghum planting with a spiral thruster and an electric telescopic rod, the problem that the existing technology cannot sample soils at different depths and dopant is solved, and accurate detection and efficient sampling of the repair conditions of heavy metal-contaminated soils at different depths is achieved.

CN119984909APending Publication Date: 2025-05-13YANAN UNIV
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Patent Information

Application Number
CN202510131998.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-06
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

The existing sampling devices cannot sample soils at different depths, resulting in the inability to obtain repairs at different depths of heavy metal contaminated soils. In addition, soils at different depths are easy to mix during the sampling process, affecting the accuracy of the detection results.

Method used

A sampling device for remediation of heavy metal soil in sorghum planting is designed, which includes a base frame, a sampling cylinder and a sealing plug. The sampling cylinder is equipped with a storage chamber and a screw propeller. The screw propeller is driven to rotate through an electric telescopic rod and a rotating shaft, which can sample at different depths and prevent soil doping.

Benefits of technology

The device can flexibly control the depth of the sampling barrel inserted into the soil, realize sampling of soil at different depths, avoid soil doping, and improve sampling efficiency and accuracy of detection results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses a sampling device for restoring sorghum planting heavy metal soil, and relates to the field of sampling devices. A sampling device for restoring heavy metal soil in sorghum planting comprises a base frame and further comprises a sampling barrel connected to the base frame in a lifting mode, a material storage cavity is formed in the sampling barrel, and a material inlet and outlet communicated with the material storage cavity is formed in the lower end of the sampling barrel; the depth of the sampling barrel inserted into the soil can be controlled, so that the sampling barrel can flexibly sample the soil at different depths, the applicability of the device is improved, the device is not polluted by the soil at other depths when the soil at a specific depth is sampled, sample mixing caused by doping of the soil at different depths is avoided, and the sampling efficiency is improved. And when the rotating spiral propeller moves downwards along with the sampling barrel, the purpose of loosening the soil can be achieved, so that when the sampling barrel moves to a specific depth, the soil at the depth can be quickly sampled, and the sampling efficiency is improved.
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Description

Technical Field

[0001] The invention belongs to the technical field of sampling devices, and in particular relates to a sampling device for remediation of heavy metal soil in sorghum planting. Background Art

[0002] When planting sorghum in heavy metal contaminated soil, different sorghum varieties can be selected according to the degree of soil pollution. When the heavy metal content in the soil is lower than the agricultural land soil pollution risk control value, cultivating low-accumulation sorghum varieties will help achieve safe soil utilization. When the heavy metal content in the soil is higher than the control value, cultivating high-accumulation sorghum varieties will help to control heavy metal contaminated soil.

[0003] The application of sorghum planting in heavy metal contaminated soil can effectively repair and improve the contaminated soil environment by selecting appropriate varieties and technical measures, while promoting the sustainable development of agricultural production and ecological environment. In the process of heavy metal soil remediation, it is necessary to sample and test the soil through a sampling device to obtain the remediation status of heavy metal contaminated soil;

[0004] However, the currently available sampling devices are unable to sample soil at different depths, making it impossible to obtain the remediation status of heavy metal contaminated soil at different depths. In addition, soil at different depths is easily mixed during the sampling process, making it impossible to accurately obtain the remediation status of heavy metal contaminated soil when testing the heavy metal content of the sampled soil. In view of this, the present invention is specially proposed. Summary of the invention

[0005] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a sampling device for remediation of heavy metal soil in sorghum planting which can overcome the above problems or at least partially solve the above problems.

[0006] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0007] A sampling device for heavy metal soil remediation in sorghum planting includes a base frame, and also includes: a sampling barrel, which is connected to the base frame in a lifting manner, wherein a storage cavity is provided in the sampling barrel, and a lower end of the sampling barrel is provided with an inlet and outlet communicated with the storage cavity; and a sealing plug, which is connected to the storage cavity in a lifting manner and is used to block the inlet and outlet.

[0008] Preferably, an installation cavity is provided in the sampling tube, an electric telescopic rod is fixedly installed in the installation cavity, and a connecting seat is fixedly installed at the output end of the electric telescopic rod; it also includes a rotating shaft connected to the connecting seat, and the sealing plug is arranged on one end of the rotating shaft that passes through the storage cavity.

[0009] The provision of the screw propeller makes it easy to take out the soil sampled into the storage cavity. Furthermore, a screw propeller is fixedly connected to one end of the rotating shaft that passes through the storage cavity, and the rotating shaft is rotatably connected to the connecting seat.

[0010] In order to drive the rotating shaft to rotate, further, a rotating sleeve 1 is rotatably connected to the sampling tube, a slider is fixedly connected to the inner wall of the rotating sleeve 1, a guide groove is opened on the rotating shaft, the slider is slidably connected in the guide groove, a motor 1 is fixedly installed in the installation cavity, a gear 2 is fixedly connected to the output end of the motor 1, a gear 1 is fixedly connected to the rotating sleeve 1, and the gear 1 is meshingly connected with the gear 2.

[0011] In order to facilitate maintenance of the equipment installed in the installation cavity, further, the installation cavity is open, and a cover plate is detachably connected to the sampling tube, and the cover plate is used to close the installation cavity that is open.

[0012] In order to facilitate installation or removal of the cover plate, further, the cover plate is threadedly connected to the installation cavity.

[0013] In order to be able to drive the sampling tube to move upward or downward, further, a rotating sleeve 2 is rotatably connected to the base frame, a screw rod and a guide rod are fixedly connected to the cover plate, the screw rod is threadedly connected to the rotating sleeve 2, the guide rod is slidably connected to the base frame, a motor 2 is fixedly installed on the base frame, a gear 3 is fixedly connected to the output end of the motor 2, a gear 4 is fixedly connected to the rotating sleeve 2, and the gear 3 is meshingly connected to the gear 4.

[0014] In order to be able to break the soil agglomerated in the sample storage cavity, further, a plurality of scrapers are equidistantly fixedly connected to the upper circumference of the rotating sleeve, and a plurality of breaking rods are equidistantly fixedly connected to the scrapers.

[0015] Preferably, a positioning hole is formed on the base frame, and a positioning pin is inserted into the positioning hole.

[0016] In order to reduce the resistance encountered by the sampling tube when inserted into the soil, preferably, the lower end of the sampling tube is configured to be conical.

[0017] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0018] The present invention can control the depth at which the sampling barrel is inserted into the soil, so that the sampling barrel can flexibly sample soils at different depths, thereby improving the applicability of the device, and can achieve that when sampling soil at a specific depth, it is not contaminated by soils at other depths, and mixed samples caused by the mixing of soils at different depths are avoided. Moreover, by making the rotating spiral propeller follow the sampling barrel to move downward, the purpose of loosening the soil can be achieved, so that when the sampling barrel moves to a specific depth, the soil at that depth can be quickly sampled, thereby improving the sampling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a cross-sectional view of a sampling tube and a base frame of a sampling device for remediation of heavy metal soil in sorghum planting according to the present invention;

[0020] Figure 2 It is a schematic diagram of the internal structure of a sampling tube of a sampling device for remediation of heavy metal soil in sorghum planting according to the present invention;

[0021] Figure 3 It is a front view of a sampling device for remediation of heavy metal soil in sorghum planting according to the present invention;

[0022] Figure 4 The present invention is a sampling device for sorghum planting heavy metal soil remediation Figure 1 A magnified view of part A;

[0023] Figure 5 The present invention is a sampling device for sorghum planting heavy metal soil remediation Figure 2 A magnified view of part B;

[0024] Figure 6 The present invention is a sampling device for sorghum planting heavy metal soil remediation Figure 1 Magnified view of part C.

[0025] In the figure: 1. base frame; 101. positioning hole; 102. positioning pin; 2. sampling tube; 201. storage chamber; 202. inlet and outlet; 203. installation chamber; 204. cover plate; 3. rotating shaft; 301. screw propeller; 302. sealing plug; 303. connecting seat; 304. electric telescopic rod; 4. rotating sleeve one; 401. gear one; 402. gear two; 403. motor one; 404. guide groove; 405. slider; 5. scraper; 501. crushing rod; 6. rotating sleeve two; 601. screw rod; 602. guide rod; 603. motor two; 604. gear three; 605. gear four. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0027] Example 1: Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 A sampling device for remediation of heavy metal soil in sorghum planting includes a base frame 1, and also includes: a sampling barrel 2, which is lifted and connected to the base frame 1, wherein a storage cavity 201 is provided in the sampling barrel 2, and a feed inlet and outlet 202 connected to the feed storage cavity 201 is provided at the lower end of the sampling barrel 2; a sealing plug 302, which is lifted and connected in the feed storage cavity 201 and is used to block the feed inlet and outlet 202.

[0028] A rotating sleeve 2 6 is rotatably connected to the base frame 1, a screw rod 601 and a guide rod 602 are fixedly connected to the cover plate 204, the screw rod 601 is threadedly connected to the rotating sleeve 2 6, the guide rod 602 is slidably connected to the base frame 1, a motor 2 603 is fixedly installed on the base frame 1, a gear 3 604 is fixedly connected to the output end of the motor 2 603, a gear 4 605 is fixedly connected to the rotating sleeve 2 6, and the gear 3 604 is meshingly connected with the gear 4 605.

[0029] A positioning hole 101 is formed on the base frame 1 , and a positioning pin 102 is inserted into the positioning hole 101 .

[0030] The lower end of the sampling tube 2 is arranged in a conical shape.

[0031] When in use, the device is first moved to the working area of ​​soil sampling, and then the positioning pin 102 is inserted into the soil through the positioning hole 101, so as to limit and fix the device, thereby improving the stability of the device during sampling, and then start the motor 2 603, and the motor 2 603 is connected to the gear 4 605 through the meshing connection of the gear 3 604 to drive the rotating sleeve 2 6 to rotate, and the rotating sleeve 2 6 drives the screw rod 601 to rotate. At this time, the rotating screw rod 601 drives the sampling tube 2 and the guide rod 602 to move downward, so that the sampling tube 2 is inserted into the soil, and then the soil can be sampled with the help of the sampling tube 2. At the same time, the rotating screw rod 601 can control the depth of the sampling tube 2 inserted into the soil, so that the sampling tube 2 can flexibly sample soils of different depths, thereby improving the applicability of the device.

[0032] By setting the sealing plug 302, when the sampling tube 2 enters the soil at a specific depth, it can prevent the soil from entering the storage chamber 201 of the sampling tube 2 through the inlet and outlet 202, so that when sampling the soil at a specific depth, it is possible to avoid contamination by soil at other depths and avoid mixing of soils at different depths.

[0033] Example 2: Reference Figure 1 , Figure 2 , Figure 4 , Figure 5 , Figure 6 A sampling device for remediation of heavy metal soil in sorghum planting includes a base frame 1, and also includes: a sampling barrel 2, which is lifted and connected to the base frame 1, wherein a storage cavity 201 is provided in the sampling barrel 2, and a feed inlet and outlet 202 connected to the feed storage cavity 201 is provided at the lower end of the sampling barrel 2; a sealing plug 302, which is lifted and connected in the feed storage cavity 201 and is used to block the feed inlet and outlet 202.

[0034] An installation cavity 203 is provided in the sampling tube 2, in which an electric telescopic rod 304 is fixedly installed, and a connecting seat 303 is fixedly installed at the output end of the electric telescopic rod 304; it also includes a rotating shaft 3 connected to the connecting seat 303, and a sealing plug 302 is arranged on one end of the rotating shaft 3 that passes through the storage cavity 201.

[0035] A screw propeller 301 is fixedly connected to one end of the rotating shaft 3 that passes through the material storage chamber 201 , and the rotating shaft 3 is rotatably connected to a connecting seat 303 .

[0036] A rotating sleeve 4 is rotatably connected to the sampling tube 2, a slider 405 is fixedly connected to the inner wall of the rotating sleeve 4, a guide groove 404 is opened on the rotating shaft 3, the slider 405 is slidably connected in the guide groove 404, a motor 403 is fixedly installed in the installation cavity 203, a gear 2 402 is fixedly connected to the output end of the motor 403, a gear 1 401 is fixedly connected to the rotating sleeve 4, and the gear 1 401 is meshingly connected with the gear 2 402.

[0037] Based on Example 1, when the rotating screw 601 drives the sampling tube 2 and the guide rod 602 to move downward, and the sampling tube 2 is inserted into the soil, the motor 1 403 is started, and the motor 1 403 is meshed with the gear 1 401 through the gear 2 402 to drive the rotating sleeve 1 4 to rotate, and the rotating sleeve 1 4 drives the rotating shaft 3 to rotate, and at the same time, the rotating rotating shaft 3 drives the screw propeller 301 to rotate synchronously, so that the rotating screw propeller 301 can loosen the soil when following the sampling tube 2 to move downward, so that when the sampling tube 2 moves to a specific depth, the soil at that depth can be quickly sampled;

[0038] When the sampling tube 2 moves to a specific depth and it is necessary to sample the soil at that depth, the electric telescopic rod 304 is started, and the electric telescopic rod 304 drives the connecting seat 303 to move upward. When the connecting seat 303 moves upward, it can pull the rotating shaft 3 to drive the sealing plug 302 and the screw propeller 301 to move upward synchronously, thereby separating the sealing plug 302 from the inlet and outlet 202, thereby opening the inlet and outlet 202, until the screw propeller 301 moves into the inlet and outlet 202. At this time, the loosened soil at that depth can be pushed into the storage chamber 201 by the rotating screw propeller 301, so as to quickly sample the soil at that depth;

[0039] After the sampling is completed, the electric telescopic rod 304 is started, and the electric telescopic rod 304 drives the connecting seat 303 to move downward. When the connecting seat 303 moves downward, it can push the rotating shaft 3 to drive the sealing plug 302 and the spiral propeller 301 to move downward synchronously, so that the sealing plug 302 is inserted into the inlet and outlet 202, thereby sealing the inlet and outlet 202 to prevent the soil sampled into the storage cavity 201 from leaking through the inlet and outlet 202 when the sampling tube 2 is taken out of the soil;

[0040] When it is necessary to take out the soil for sampling into the storage chamber 201, first start the motor 2 603. The motor 2 603 is connected to the gear 4 605 through the gear 3 604 to drive the rotating sleeve 2 6 to rotate. The rotating sleeve 2 6 drives the screw rod 601 to rotate. At this time, the rotating screw rod 601 drives the sampling tube 2 and the guide rod 602 to move upward until the sampling tube 2 is removed from the soil. Then repeat the above-mentioned operation steps of opening the inlet and outlet port 202 to open the inlet and outlet port 202. At this time, the screw propeller 301 moves to the inlet and outlet port 202, and then the soil is pushed out of the storage chamber 201 by the rotating screw propeller 301, so as to facilitate the rapid removal of the soil from the storage chamber 201.

[0041] Example 3: Reference Figure 1 , Figure 2 , Figure 5 A sampling device for remediation of heavy metal soil in sorghum planting is basically the same as Example 1, and further includes a base frame 1, and also includes: a sampling barrel 2, which is lifted and connected to the base frame 1, wherein a storage chamber 201 is provided in the sampling barrel 2, and a lower end of the sampling barrel 2 is provided with an inlet and outlet port 202 connected to the storage chamber 201; a sealing plug 302, which is lifted and connected in the storage chamber 201 and is used to block the inlet and outlet port 202.

[0042] A plurality of scrapers 5 are fixedly connected to the rotating sleeve 4 at equal intervals on the circumference, and a plurality of crushing rods 501 are fixedly connected to the scraper 5 at equal intervals.

[0043] When the motor 1 403 drives the rotating sleeve 1 4 to rotate through the gear 2 402 and the gear 1 401, the rotating sleeve 1 4 drives the scraper 5 and the breaking rod 501 to rotate, so that the rotating breaking rod 501 can hit the soil sampled into the storage chamber 201, so as to break and disperse the agglomerated soil, and avoid the agglomerated soil from clogging the inlet and outlet 202 when the soil is taken out.

[0044] When taking the soil out of the storage chamber 201, the motor 1 403 drives the rotating sleeve 1 4 to rotate through the gear 2 402 and the gear 1 401. During the rotation process, the rotating sleeve 1 4 drives the scraper 5 to rotate in contact with the inner wall of the storage chamber 201, so that the rotating scraper 5 can scrape off the soil adhering to the inner wall of the storage chamber 201, so that the soil sampled into the storage chamber 201 can be fully discharged, thereby reducing the waste of soil.

[0045] Example 4: Reference Figure 1 , Figure 2 A sampling device for remediation of heavy metal soil in sorghum planting includes a base frame 1, and also includes: a sampling barrel 2, which is lifted and connected to the base frame 1, wherein a storage cavity 201 is provided in the sampling barrel 2, and a feed inlet and outlet 202 connected to the feed storage cavity 201 is provided at the lower end of the sampling barrel 2; a sealing plug 302, which is lifted and connected in the feed storage cavity 201 and is used to block the feed inlet and outlet 202.

[0046] The installation cavity 203 is open, and a cover plate 204 is detachably connected to the sampling tube 2. The cover plate 204 is used to close the installation cavity 203 which is open. By arranging the cover plate 204 to be detachable, it is convenient to maintain the equipment installed in the installation cavity 203.

[0047] The cover plate 204 is threadedly connected to the installation cavity 203; when the equipment installed in the installation cavity 203 needs to be maintained, the installation cavity 203 can be opened by removing the cover plate 204 installed on the sampling tube 2, so that the equipment installed in the installation cavity 203 can be exposed to the outside, thereby facilitating the staff to maintain the equipment.

[0048] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as above with a preferred embodiment, it is not used to limit the present invention.

Claims

1. A sampling device for remediation of heavy metal soil in sorghum planting, comprising a base frame (1), characterized in that: Also includes: The sampling tube (2) is connected to the base frame (1) in a lifting manner. Wherein, a material storage cavity (201) is provided in the sampling cylinder (2), and a material inlet and outlet (202) connected to the material storage cavity (201) is provided at the lower end of the sampling cylinder (2); A sealing plug (302) is connected in a lifting manner in the material storage cavity (201) and is used to seal the material inlet and outlet (202).

2. The sampling device for heavy metal remediation of sorghum planting soil according to claim 1, characterized in that: The sampling tube (2) is provided with a mounting cavity (203), an electric telescopic rod (304) is fixedly mounted in the mounting cavity (203), and a connecting seat (303) is fixedly mounted at the output end of the electric telescopic rod (304); It also includes a rotating shaft (3) connected to the connecting seat (303), and the sealing plug (302) is arranged on one end of the rotating shaft (3) that passes through the material storage cavity (201).

3. The sampling device for heavy metal remediation of sorghum planting soil according to claim 2, characterized in that: A screw propeller (301) is fixedly connected to one end of the rotating shaft (3) that passes through the material storage chamber (201), and the rotating shaft (3) is rotatably connected to a connecting seat (303).

4. The sampling device for heavy metal remediation of sorghum planting soil according to claim 3, characterized in that: The sampling tube (2) is rotatably connected to a rotating sleeve (4), the inner wall of the rotating sleeve (4) is fixedly connected to a slider (405), the rotating shaft (3) is provided with a guide groove (404), the slider (405) is slidably connected in the guide groove (404), a motor (403) is fixedly installed in the installation cavity (203), the output end of the motor (403) is fixedly connected to a gear (402), the rotating sleeve (4) is fixedly connected to a gear (401), and the gear (401) is meshingly connected to the gear (402).

5. The sampling device for heavy metal remediation of sorghum planting soil according to claim 2, characterized in that: The installation cavity (203) is arranged in an open manner, and a cover plate (204) is detachably connected to the sampling cylinder (2), and the cover plate (204) is used to close the installation cavity (203) arranged in an open manner.

6. The sampling device for heavy metal remediation of sorghum planting soil according to claim 5, characterized in that: The cover plate (204) is threadedly connected to the installation cavity (203).

7. The sampling device for heavy metal remediation of sorghum planting soil according to claim 5, characterized in that: The base frame (1) is rotatably connected to a rotating sleeve (6), the cover plate (204) is fixedly connected to a screw rod (601) and a guide rod (602), the screw rod (601) is threadedly connected to the rotating sleeve (6), the guide rod (602) is slidably connected to the base frame (1), a motor (603) is fixedly installed on the base frame (1), a gear (604) is fixedly connected to the output end of the motor (603), a gear (605) is fixedly connected to the rotating sleeve (6), and the gear (604) is meshingly connected to the gear (605).

8. The sampling device for heavy metal remediation of sorghum planting soil according to claim 4, characterized in that: A plurality of scrapers (5) are fixedly connected at equal intervals on the circumference of the rotating sleeve (4), and a plurality of crushing rods (501) are fixedly connected at equal intervals on the scraper (5).

9. The sampling device for heavy metal remediation of sorghum planting soil according to claim 1, characterized in that: The base frame (1) is provided with a positioning hole (101), and a positioning pin (102) is inserted into the positioning hole (101).

10. The sampling device for heavy metal remediation of sorghum planting soil according to claim 1, characterized in that: The lower end of the sampling cylinder (2) is arranged in a conical shape.