Sampling device for repairing heavy metal contaminated soil through biochar

Abstract

The utility model discloses a sampling device for repairing heavy metal contaminated soil by biochar, which comprises a sampling cylinder, the inside of the sampling cylinder is movably connected with the surface of a push plate, the top of the push plate is fixedly connected with the bottom of a connecting pipe, and the top of the connecting pipe extends to the outside of the sampling cylinder. The interior of the connecting pipe is movably connected with the surface of a connecting rod, the top of the connecting rod extends to the exterior of the connecting pipe and is fixedly connected with the bottom of a handle, pedals are fixedly connected to the two sides of the sampling cylinder, and guide grooves are formed in the two sides of the connecting rod; and sliding blocks located at the top of the push plate are fixedly connected to the two sides of the interior of the sampling cylinder. According to the anti-toppling sampling device disclosed by the utility model, the ground nails are arranged and are inserted into soil to support and limit the sampling device, so that the situation that a user falls down due to the fact that the sampling device is inclined when the user applies pressure to the pedal is avoided, and the sampling device has an anti-toppling function.

Description

Technical Field

[0001] The utility model relates to the technical field of soil remediation, in particular to a sampling device for biochar remediation of heavy metal contaminated soil. Background Art

[0002] Soil remediation is a technical measure to restore the normal function of contaminated soil. In the soil remediation industry, there are more than 100 existing soil remediation technologies and more than 10 commonly used technologies, which can be roughly divided into three methods: physical, chemical and biological. Biochar is usually used to adsorb heavy metals to repair heavy metal-contaminated soil. The adsorption capacity of biochar reduces the harmfulness of heavy metal pollution in the soil. Many studies have shown that biochar can adsorb heavy metal ions due to its high porosity and huge specific surface area, thereby reducing the concentration of heavy metal ions in the soil. In the process of soil remediation, it is necessary to use a sampling device to collect soil samples before and after remediation. For example, the soil remediation sampling device with authorization announcement number 219224202U includes a mounting tube, and the bottom of the mounting tube is installed A sampling tank is provided, the interior of the mounting tube is provided with a T-shaped push-pull rod, one end of the T-shaped push-pull rod extends into the interior of the sampling tank, a connecting push plate is fixed to the end of the T-shaped push-pull rod, and a cleaning component is provided on the bottom end surface of the connecting push plate. The cleaning component designed in the utility model is convenient for scraping and cleaning the soil attached to the inner wall of the sampling tank while pushing out the soil inside the sampling tank. The operation is convenient and quick, and the adhesion of different soils affects the detection results. The soil and the cleaning scraper are not easy to adhere to each other, and the sponge ring can be removed regularly for cleaning, and the practical effect is good. The limiting component designed in the utility model is convenient for increasing the force bearing area of ​​the foot and the sampling tank during sampling, so that the sampling tank can be quickly embedded in the soil for taking soil, which is convenient for improving the sampling efficiency.

[0003] With regard to the above-mentioned related technologies, there are the following defects: the sampling device samples the soil by the user stepping on the pedal to apply force and inserting the sampling tube into the soil. However, when the user applies pressure on the pedal, the sampling device is prone to tilting. The sampling device does not have an anti-tipping function, causing the sampling device to tip over. The user's center of gravity will also shift due to the tipping of the sampling device, causing the user to fall.

[0004] Therefore, it is necessary to redesign the sampling device to effectively prevent the phenomenon that it does not have an anti-dumping function. Utility Model Content

[0005] In order to solve the problems raised in the above-mentioned background technology, the purpose of the utility model is to provide a sampling device for biochar remediation of heavy metal contaminated soil, which has the advantage of enabling the sampling device to have an anti-dumping function, thereby solving the problem that the existing sampling device does not have an anti-dumping function.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sampling device for biochar remediation of heavy metal contaminated soil, comprising a sampling tube, a push plate, a connecting tube, a connecting rod and a handle;

[0007] The interior of the sampling cylinder is movably connected to the surface of the push plate, the top of the push plate is fixedly connected to the bottom of the connecting tube, the top of the connecting tube extends to the outside of the sampling cylinder, the interior of the connecting tube is movably connected to the surface of the connecting rod, the top of the connecting rod extends to the outside of the connecting tube and is fixedly connected to the bottom of the handle;

[0008] Both sides of the sampling cylinder are fixedly connected with pedals, both sides of the connecting rod are provided with guide grooves, both sides of the interior of the sampling cylinder are fixedly connected with sliders located on the top of the push plate, the inner side of the sliders extends to the inside of the guide grooves, and the bottom of the push plate is fixedly connected with ground nails.

[0009] As a preferred embodiment of the utility model, the top of the pedal is movably connected with an anti-skid rubber, and the top of the anti-skid rubber is fixedly connected with an anti-skid protrusion.

[0010] As a preferred embodiment of the utility model, a connecting groove is provided on the top of the pedal, a rubber nail is fixedly connected to the bottom of the anti-slip rubber, and the bottom of the rubber nail extends to the inside of the connecting groove.

[0011] As a preferred embodiment of the utility model, an annular groove is formed on the surface of the push plate, a rubber scraper is fixedly connected to the inside of the annular groove, and the outer side of the rubber scraper extends to the outside of the annular groove and is movably connected to the inner wall of the sampling cylinder.

[0012] As a preferred embodiment of the utility model, a positioning groove located inside the connecting tube is formed on the front side of the connecting rod, an adjusting screw is threadedly connected to the front side of the connecting tube, the back side of the adjusting screw extends to the inside of the connecting tube and is fixedly connected to a clamping block, and the back side of the clamping block extends to the inside of the positioning groove.

[0013] As a preferred embodiment of the utility model, a limiting groove is provided on the back side of the connecting rod, a limiting block is fixedly connected to the back side inside the connecting tube, and the front side of the limiting block extends to the inside of the limiting groove.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model provides ground nails which are inserted into the soil to support and limit the sampling device, thereby preventing the sampling device from tilting when the user applies pressure to the pedal, thereby preventing the user from falling, and making the sampling device have an anti-dumping function.

[0016] 2. The utility model improves the friction of the pedal surface by providing anti-skid rubber and anti-skid protrusions, thereby preventing the user's foot from slipping off the pedal and colliding with other objects when the user applies pressure on the pedal. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a three-dimensional diagram of the local parts of the sampling tube of the utility model;

[0019] Figure 3 This is a front view cross-sectional schematic diagram of the sampling tube structure of the utility model;

[0020] Figure 4 This is a top view cross-sectional schematic diagram of the structural connecting pipe of the utility model;

[0021] Figure 5 This is a right side cross-sectional schematic diagram of the structural connecting pipe of the utility model;

[0022] Figure 6 For this utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0023] In the figure: 1. sampling cylinder; 2. push plate; 3. connecting tube; 4. connecting rod; 5. handle; 6. pedal; 7. guide groove; 8. slider; 9. ground nail; 10. anti-skid rubber; 11. anti-skid protrusion; 12. connecting groove; 13. rubber nail; 14. annular groove; 15. rubber scraper; 16. positioning groove; 17. adjusting screw; 18. block; 19. limit groove; 20. limit block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figures 1 to 6 As shown, the utility model provides a sampling device for biochar remediation of heavy metal contaminated soil, comprising a sampling tube 1, a push plate 2, a connecting tube 3, a connecting rod 4 and a handle 5;

[0026] The inside of the sampling cylinder 1 is movably connected to the surface of the push plate 2, the top of the push plate 2 is fixedly connected to the bottom of the connecting tube 3, the top of the connecting tube 3 extends to the outside of the sampling cylinder 1, the inside of the connecting tube 3 is movably connected to the surface of the connecting rod 4, the top of the connecting rod 4 extends to the outside of the connecting tube 3 and is fixedly connected to the bottom of the handle 5;

[0027] Pedals 6 are fixedly connected to both sides of the sampling tube 1, guide grooves 7 are opened on both sides of the connecting rod 4, and sliders 8 located on the top of the push plate 2 are fixedly connected to both sides of the interior of the sampling tube 1. The inner side of the slider 8 extends to the inside of the guide groove 7, and a ground nail 9 is fixedly connected to the bottom of the push plate 2.

[0028] refer to Figure 6 The top of the pedal 6 is movably connected with an anti-skid rubber 10 , and the top of the anti-skid rubber 10 is fixedly connected with an anti-skid protrusion 11 .

[0029] As a technical optimization solution of the utility model, by providing anti-skid rubber 10 and anti-skid protrusions 11, the surface friction of the pedal 6 is increased to prevent the user's foot from slipping off the pedal 6 and colliding with other objects when the user applies pressure on the pedal 6.

[0030] refer to Figure 6 A connecting groove 12 is provided at the top of the pedal 6 , and a rubber nail 13 is fixedly connected to the bottom of the anti-slip rubber 10 , and the bottom of the rubber nail 13 extends to the inside of the connecting groove 12 .

[0031] As a technical optimization solution of the present invention, by providing the connecting groove 12 and the rubber nail 13 , the anti-skid rubber 10 and the pedal 6 can be quickly disassembled and assembled, so that the user can replace the damaged anti-skid rubber 10 conveniently.

[0032] refer to Figure 6 An annular groove 14 is formed on the surface of the push plate 2 , and a rubber scraper 15 is fixedly connected to the inside of the annular groove 14 . The outer side of the rubber scraper 15 extends to the outside of the annular groove 14 and is movably connected to the inner wall of the sampling tube 1 .

[0033] As a technical optimization solution of the utility model, by providing an annular groove 14 and a rubber scraper 15, when the push plate 2 moves downward and pushes the soil sample out of the sampling tube 1, the soil attached to the inner wall of the sampling tube 1 is swept away, thereby preventing the soil from adhering to the inner wall of the sampling tube 1 for a long time, causing the sampling tube 1 to be corroded by harmful substances in the soil.

[0034] refer to Figure 5A positioning groove 16 located inside the connecting tube 3 is formed on the front of the connecting rod 4, and an adjusting screw 17 is threadedly connected to the front of the connecting tube 3. The back of the adjusting screw 17 extends to the inside of the connecting tube 3 and is fixedly connected to a clamping block 18. The back of the clamping block 18 extends to the inside of the positioning groove 16.

[0035] As a technical optimization solution of the utility model, the connecting rod 4 is limited by providing a positioning groove 16, an adjusting screw 17 and a block 18 to prevent the connecting rod 4 from retracting into the connecting tube 3 due to gravity after the user adjusts the height of the sampling device.

[0036] refer to Figure 4 A limiting groove 19 is provided on the back of the connecting rod 4 , a limiting block 20 is fixedly connected to the back of the connecting pipe 3 , and the front of the limiting block 20 extends to the inside of the limiting groove 19 .

[0037] As a technical optimization solution of the utility model, by providing a limiting groove 19 and a limiting block 20 , the connecting rod 4 is guided and limited to prevent the connecting rod 4 from rotating, which causes the block 18 to be unable to align with the positioning groove 16 .

[0038] The working principle and use process of the utility model are as follows: when in use, the sampling device is first inserted into the specified position. At this time, the push plate 2 will move downward under the action of inertia and gravity, so that the ground nails 9 are inserted into the soil, and the ground nails 9 inserted into the soil will become the foundation to support the sampling device. At this time, the user uses his legs and feet to step on the pedals 6, and the force generated by the stepping will drive the sampling tube 1 to move downward, so that the sampling tube 1 is inserted into the soil, and then the sampling tube 1 is taken out of the soil, and the handle 5 is pressed downward. The handle 5 drives the push plate 2 to move downward through the connecting rod 4 and the connecting tube 3, and the push plate 2 will push out the soil sample in the sampling tube 1.

[0039] In summary: the sampling device for biochar restoration of heavy metal contaminated soil, by setting ground nails 9, supports and limits the sampling device by inserting the ground nails 9 into the soil, to prevent the sampling device from tilting when the user applies pressure to the pedal 6, causing the user to fall, so that the sampling device has an anti-dumping function.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sampling device for biochar remediation of heavy metal contaminated soil, characterized in that: It comprises a sampling tube (1), a push plate (2), a connecting tube (3), a connecting rod (4) and a handle (5); The interior of the sampling cylinder (1) is movably connected to the surface of the push plate (2), the top of the push plate (2) is fixedly connected to the bottom of the connecting tube (3), the top of the connecting tube (3) extends to the outside of the sampling cylinder (1), the interior of the connecting tube (3) is movably connected to the surface of the connecting rod (4), the top of the connecting rod (4) extends to the outside of the connecting tube (3) and is fixedly connected to the bottom of the handle (5); Both sides of the sampling cylinder (1) are fixedly connected with pedals (6), both sides of the connecting rod (4) are provided with guide grooves (7), both sides of the interior of the sampling cylinder (1) are fixedly connected with sliders (8) located on the top of the push plate (2), the inner side of the slider (8) extends to the inside of the guide groove (7), and the bottom of the push plate (2) is fixedly connected with a ground nail (9).

2. A sampling device for biochar remediation of heavy metal contaminated soil according to claim 1, characterized in that: The top of the pedal (6) is movably connected to an anti-skid rubber (10), and the top of the anti-skid rubber (10) is fixedly connected to an anti-skid protrusion (11).

3. A sampling device for biochar remediation of heavy metal contaminated soil according to claim 2, characterized in that: A connecting groove (12) is provided on the top of the pedal (6), a rubber nail (13) is fixedly connected to the bottom of the anti-slip rubber (10), and the bottom of the rubber nail (13) extends to the inside of the connecting groove (12).

4. A sampling device for biochar remediation of heavy metal contaminated soil according to claim 1, characterized in that: The surface of the push plate (2) is provided with an annular groove (14), the interior of the annular groove (14) is fixedly connected with a rubber scraper (15), the outer side of the rubber scraper (15) extends to the outside of the annular groove (14) and is movably connected to the inner wall of the sampling tube (1).

5. The sampling device for biochar remediation of heavy metal contaminated soil according to claim 1, characterized in that: The front side of the connecting rod (4) is provided with a positioning groove (16) located inside the connecting tube (3); the front side of the connecting tube (3) is threadedly connected with an adjusting screw (17); the back side of the adjusting screw (17) extends into the interior of the connecting tube (3) and is fixedly connected with a clamping block (18); the back side of the clamping block (18) extends into the interior of the positioning groove (16).

6. The sampling device for biochar remediation of heavy metal contaminated soil according to claim 1, characterized in that: A limiting groove (19) is provided on the back of the connecting rod (4), a limiting block (20) is fixedly connected to the back of the interior of the connecting tube (3), and the front of the limiting block (20) extends into the interior of the limiting groove (19).

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