Aerodynamic turning and throwing device for microbial remediation of heavy metal contaminated soil

Abstract

This invention provides a pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil. Its structure includes: a control end, an assembly frame, a cylinder, a switch, a pushing end, and a turning and turning structure. One end of the control end is welded to the outer surface of the assembly frame, and the switch mounted on the upper end of the assembly frame electrically controls the cylinder. The lower end of the cylinder is connected to the turning and turning structure. This invention improves upon the turning and turning structure by adjusting the height of the jet pipe and the pneumatic turning and turning body, allowing the jet pipe and turning body to insert into the soil. The reciprocating motion of the adjustment structure and the gas guidance from the guide pipe pneumatically turn and turn the soil. Simultaneously, the lower layer of the magnetic suction plate and the side-mounted air outlet prevent soil from splashing upwards and contaminating the internal assembly spacing of the device, thus improving the operational stability and ease of subsequent disassembly and maintenance.

Description

Technical Field

[0001] This invention relates to the field of pneumatic soil turning and turning technology, and more specifically to a pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil. Background Technology

[0002] Microbial remediation of heavy metal contaminated soil is a green remediation technology that utilizes the natural metabolic activities of specific microorganisms (such as bacteria and fungi) to reduce, remove, or fix the toxicity of heavy metals in the soil, so that they no longer pose a threat to the environment and human health. Therefore, when carrying out soil remediation, a pneumatic turning and turning device can be used to apply high pressure to the soil, so as to achieve deeper, more efficient and uniform oxygenation and material turning, allowing microorganisms to enter the soil depths and improve the remediation effect of heavy metals in the soil. In summary, the inventors have found that existing pneumatic turning and turning devices have the following main defects: When the current pneumatic turning and turning device is in operation, the soil splashed upwards during the pneumatic turning and turning of contaminated soil is very likely to contaminate the inner bottom layer of the device. Furthermore, the upward splashing of soil can easily intrude into the assembly gaps of the device, causing accumulation and jamming. This makes subsequent disassembly difficult and hinders the removal of contaminated soil from the contaminated area, thus reducing the actual effectiveness of the current pneumatic turning and turning device. Summary of the Invention

[0003] The technical solution adopted by the present invention to achieve the technical objective is: a pneumatic turning and shoveling device for microbial remediation of heavy metal contaminated soil, the structure of which includes: a control end, an assembly frame, a cylinder, a switch, a pushing end, and a turning and shoveling structure. One end of the control end is welded to the outer surface of the assembly frame, and the switch mounted on the upper end of the assembly frame electrically controls the cylinder. The lower end of the cylinder is connected to the turning and shoveling structure. The lower end of the assembly frame and the pushing end are an integrated structure.

[0004] As a further improvement of the present invention, the tumbling and throwing structure is provided with an adjustment structure, which is set at both ends of the jet pipe. The lower end of the jet pipe is equipped with a pneumatic tumbling and throwing body, and the upper end of the jet pipe is connected to a guide pipe and a fixing block is set at the upper end of the guide pipe.

[0005] As a further improvement of the present invention, the pneumatic turning and throwing body is also provided with a connecting block. One end of the connecting block is connected to an air collecting frame, the lower end of the air collecting frame is connected to a magnetic suction plate, the lower end of the magnetic suction plate is provided with an air jet pipe, the edge of the air jet pipe has an air outlet, and a turning body is mounted on the lower end of the air jet pipe.

[0006] As a further improvement of the present invention, the height of the jet pipe and the pneumatic turning body can be adjusted up and down in the assembly frame by the adjustment structure of the turning structure. At the same time, the auxiliary pipe inside the guide pipe slides down, and the gas enters the pneumatic turning body and is ejected from the air outlet of the jet pipe. During the process, the turning body is inserted into the soil. Combined with the up and down reciprocating motion of the adjustment structure, the soil is turned pneumatically.

[0007] As a further improvement of the present invention, the control end is a stainless steel metal product and the pushing end of the assembly frame is manually pushed to move. The upper end of the assembly frame is parallel to the cylinder, and the flipping structure is arranged parallel to the inside of the assembly frame.

[0008] As a further improvement of the present invention, the adjustment structure is provided at each of the left and right ends of the jet pipe and is set in a symmetrical orientation. The pneumatic overturning body is located at the lower end of the jet pipe and is connected to it. The guide pipe is set at the upper end of the jet pipe and is set in a vertical orientation. The guide pipe is equipped with a secondary pipe inside and extends and retracts with the up and down movement of the adjustment structure. The fixing block is perpendicular to the upper end of the guide pipe.

[0009] As a further improvement of the present invention, the connecting block is distributed on the edge of the air collection frame and embedded in the lower end of the jet pipe, and then is attracted and fixed by the magnetic suction plate. The jet pipe is set in a vertical position and has multiple air outlets on its edge. The flipping body is located at the lower end of the jet pipe.

[0010] As a further improvement of the present invention, the adjustment structure is provided with a pulley, the pulley is provided with an electric motor and the lower end of the electric motor is connected to the upper and lower ends of the balance block, the center of the balance block is provided with a push rod and the two ends are respectively connected to a pull frame and a rubber sleeve, and a sealing sleeve is also connected to the surface of the balance block and overlaps with the rubber sleeve.

[0011] As a further improvement of the present invention, the pulley allows the electric motor to slide on the surface of the assembly frame, the balance block restrains the position of the electric motor, the push rod of the balance block passes through the center, the push rod allows the pull frame to be manually pulled and the rubber sleeve to clamp the two ends of the jet pipe, and then enter the sealing sleeve for secondary edge sealing.

[0012] As a further improvement of the present invention, the sealing sleeve is also provided with a locking bolt, which is located at the corner of the sleeve body. A protrusion is connected to the center of the edge of the sleeve body, and a limiting frame is also connected inside the sleeve body. A reinforcing block is connected in the limiting frame, and one end of the reinforcing block is connected to the edge of the rebound sleeve.

[0013] As a further improvement of the present invention, there are four locking bolts at the corners of the sleeve body, and the two protrusions at the center are solid. The limiting frame coincides with the center of the sleeve body. The limiting frame is equipped with four reinforcing blocks inside and restrains the rebound sleeve. The center of the rebound sleeve is penetrated by the push rod.

[0014] As a further improvement of the present invention, the flipping body is also provided with a sharp corner block, the upper end of the sharp corner block is connected to a balance plate, the upper edge of the balance plate is connected to an inclined plate, a slot is generated in the center distance of the inclined plate and a vertical block is connected to the center of the slot.

[0015] As a further improvement of the present invention, the pointed block is triangular in shape and the two inclined plates of the upper balance plate are set in a symmetrical orientation to cover the edge of the slot. The lower end of the jet pipe is inserted through the slot and the lower end of the jet pipe is blocked by the vertical block.

[0016] As a further improvement of the present invention, the inclined plate is also provided with a contact layer, which is integral with the plate body. A contact surface is provided at the upper end of the plate body, and a flow groove opened at the contact surface penetrates the plate body and the sharp corner block.

[0017] As a further improvement of the present invention, the contact layer of the plate covers the edge of the slot and the contact layer of the plate is smooth and has multiple flow grooves.

[0018] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention improves upon the existing turning and turning structure by adjusting the height of the jet pipe and the pneumatic turning and turning body. This allows the jet pipe and turning body of the pneumatic turning and turning body to be inserted into the soil. Then, the soil is pneumatically turned and turned by the reciprocating operation of the adjusting structure and the gas guidance of the guide pipe. At the same time, the combination of the shielding of the lower layer of the magnetic suction plate and the side of the air outlet to prevent soil from splashing upwards and causing soil pollution inside the device improves the operational stability of the device and the convenience of subsequent disassembly and maintenance.

[0019] 2. With the improved adjustment structure, the present invention uses a balance block to determine the position of the two sets of electric motors, enabling the pulleys to accurately contact the outer surface of the assembly frame and achieve a stable vertical sliding effect. Then, the sealing sleeve in the balance block, in conjunction with the rubber sleeve, provides double coverage to both ends of the jet pipe, preventing leakage from both ends when high-pressure gas flows. Furthermore, the central push rod can pull the rubber sleeve further inward, ensuring the ease of subsequent disassembly of the jet pipe and preventing disassembly difficulties caused by small gaps. At the same time, the rebound sleeve in the center of the sleeve can improve the lateral pulling stability of the push rod and prevent tilting and swaying.

[0020] 3. The present invention improves upon the turning body by using the cooperation of the sharp corner blocks to achieve rapid embedding into the soil. Then, the two inclined plates of the upper balance plate and the generated slots allow the lower end of the air outlet to be embedded, which can restrain the position of the air outlet and cover its lower end, ensuring that the gas can be accurately ejected from the air outlet. After turning the soil, the inclined plates can allow the remaining soil to slide to the side through the smooth contact surface, avoiding residue. At the same time, the combination with the flow channel can improve the efficiency of soil sliding out. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of a pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil.

[0022] Figure 2 This is a cross-sectional schematic diagram of an improved flipping structure.

[0023] Figure 3 This is a schematic diagram of a three-dimensional structure of an improved initiation and turning body.

[0024] Figure 4 This is a cross-sectional schematic diagram of an improved adjustment structure.

[0025] Figure 5 This is a side view structural diagram of an improved sealing sleeve.

[0026] Figure 6 This is a schematic diagram of a three-dimensional structure of an improved flipping body.

[0027] Figure 7 This is a schematic diagram of a three-dimensional structure of an improved inclined plate.

[0028] In the diagram: Control end-1, Assembly frame-2, Cylinder-3, Switch-4, Push end-5, Tilting structure-6; Adjustment structure-61, jet pipe-62, pneumatic turning and throwing body-63, guide pipe-64, fixing block-65; Connecting block-631, air collection frame-632, magnetic suction plate-633, air outlet pipe-634, air outlet hole-635, flipping body-636; Pulley-611, Electric motor-612, Balance block-613, Push rod-614, Pull frame-615, Sealing sleeve-616, Rubber sleeve-617; Locking bolt-6161, sleeve-6162, protrusion-6163, limiting frame-6164, reinforcing block-6165, rebound sleeve-6166; Sharp corner block - 6361, Balance plate - 6362, Tilt plate - 6363, Slot - 6364, Vertical block - 6365; Contact layer-3631, plate-3632, contact surface-3633, flow channel-3634. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings: Example 1: Figures 1 to 5 As shown: This invention provides a pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil. Its structure includes: a control end 1, an assembly frame 2, a cylinder 3, a switch 4, a pushing end 5, and a tumbling structure 6. One end of the control end 1 is welded to the outer surface of the assembly frame 2, and the switch 4 mounted on the upper end of the assembly frame 2 electrically controls the cylinder 3. The lower end of the cylinder 3 is connected to the tumbling structure 6. The lower end of the assembly frame 2 and the pushing end 5 are an integrated structure.

[0030] The tumbling structure 6 is provided with an adjustment structure 61, which is located at both ends of the jet pipe 62. The lower end of the jet pipe 62 is equipped with a pneumatic tumbling body 63, and the upper end of the jet pipe 62 is connected to a guide pipe 64, and a fixing block 65 is provided at the upper end of the guide pipe 64.

[0031] The pneumatic turning and throwing body 63 is also provided with a connecting block 631. One end of the connecting block 631 is connected to an air collecting frame 632. The lower end of the air collecting frame 632 is connected to a magnetic suction plate 633. The lower end of the magnetic suction plate 633 is provided with an air outlet pipe 634. An air outlet hole 635 is opened on the edge of the air outlet pipe 634. A turning body 636 is mounted on the lower end of the air outlet pipe 634.

[0032] In this process, the height of the jet pipe 62 and the pneumatic turning body 63 is adjusted up and down in the assembly frame 2 by the adjustment structure 61 of the turning structure 6. At the same time, the auxiliary pipe inside the guide pipe 64 slides down, allowing gas to enter the pneumatic turning body 63 and be ejected from the air outlet 635 of the air outlet pipe 634. During the process, the turning body 636 is inserted into the soil, and the pneumatic turning operation is carried out by the up and down reciprocating motion of the adjustment structure 61.

[0033] The control end 1 is made of stainless steel and is manually pushed to move the displacement end 5 of the assembly frame 2. The upper end of the assembly frame 2 is parallel to the cylinder 3, and the flipping structure 6 is set parallel to the inside of the assembly frame 2.

[0034] The adjustment structure 61 is provided at both ends of the jet pipe 62 and is set in a symmetrical orientation. The pneumatic flipping body 63 is located at the lower end of the jet pipe 62 and is connected to it. The guide pipe 64 is set at the upper end of the jet pipe 62 and is set in a vertical orientation. It is equipped with a secondary pipe inside and extends and retracts with the up and down movement of the adjustment structure 61. The fixing block 65 is perpendicular to the upper end of the guide pipe 64.

[0035] The connecting block 631 is distributed on the edge of the air collection frame 632 and embedded in the lower end of the jet pipe 62. It is then attracted and fixed by the magnetic suction plate 633. The air outlet pipe 634 is set in a vertical position and has multiple air outlet holes 635 on its edge. The flipping body 636 is located at the lower end of the air outlet pipe 634.

[0036] The adjustment structure 61 is equipped with a pulley 611, and the pulley 611 is equipped with an electric motor 612. The lower end of the electric motor 612 is connected to the upper and lower ends of the balance block 613. The balance block 613 has a push rod 614 in the center and a pull frame 615 and a rubber sleeve 617 connected to its two ends respectively. A sealing sleeve 616 is also connected to the surface of the balance block 613, which overlaps with the rubber sleeve 617.

[0037] The pulley 611 allows the electric motor 612 to slide on the surface of the assembly frame 2. The balance block 613 restrains the position of the electric motor 612. The push rod 614 of the balance block 613 passes through the center. The push rod 614 allows the pull frame 615 to be manually pulled and the rubber sleeve 617 to clamp both ends of the jet pipe 62, which then enters the sealing sleeve 616 for secondary edge sealing.

[0038] The sealing sleeve 616 is also provided with a locking bolt 6161, which is located at the corner of the sleeve body 6162. A protrusion 6163 is connected to the center of the edge of the sleeve body 6162. A limiting frame 6164 is also connected inside the sleeve body 6163. A reinforcing block 6165 is connected in the limiting frame 6164. One end of the reinforcing block 6165 is connected to the edge of the rebound sleeve 6166.

[0039] The locking bolts 6161 are provided at the corners of the sleeve 6162, and the two protrusions 6163 at the center are solid. The limiting frame 6164 coincides with the center of the sleeve 6162. The limiting frame 6164 is equipped with four reinforcing blocks 6165, which restrain the rebound sleeve 6166. The center of the rebound sleeve 6166 is penetrated by the push rod 614.

[0040] The specific functions and operation procedures of this embodiment are as follows: In this invention, the pneumatic turning and turning device for microbial remediation of metal-contaminated soil can be manually pushed by the control end 1 to the assembly frame 2. Simultaneously, the lower pushing end 5 of the assembly frame 2 moves on the soil, stimulating the natural metabolic activities of specific microorganisms (such as bacteria and fungi) in the contaminated soil to reduce, remove, or fix the heavy metal toxicity in the soil. After the microorganisms enter the soil, the cylinder 3 can be opened by the switch 4 to begin operation. Then, the turning and turning structure 6 allows high-pressure gas to be injected into the soil. Combined with the characteristics of pneumatic turning and turning, the microorganisms can be evenly distributed in the soil, thus improving the uniformity and stability of the remediated soil. The jet pipe 62 of the turning and turning structure 6 can then be connected to the lower end of the cylinder 3 via the upper guide pipe 64. Simultaneously, the device utilizes the natural metabolic activities of specific microorganisms (such as bacteria and fungi) in the contaminated soil to reduce, remove, or fix the heavy metal toxicity in the soil. The fixing block 65 improves the connection between the two, preventing loosening and detachment during air delivery. This allows the adjustment structures 61 at both ends of the air jet pipe 62 to slide on the outer surface of the assembly frame 2, achieving stable up-and-down reciprocating motion. Simultaneously, it combines with the pneumatic turning body 63 to turn the soil. For this purpose, the air collection frame 632 of the pneumatic turning body 63 can be stably connected to the lower end of the air jet pipe 62 via the connecting block 631 and the magnetic suction plate 633, ensuring that the air outlet pipe 634 can be stably connected to the lower end of the air jet pipe 62. Then, the turning body 636, combined with the up-and-down movement of the adjustment structure 61, can embed itself into the soil, allowing gas to be ejected through the air outlet 635, thus completing the pneumatic turning. During operation, the lower end of the magnetic suction plate 633 can be used for coverage, and the air outlet 635 can be opened laterally. This design prevents soil from splashing upwards and intruding into the assembly position of the device, improving the ease of subsequent disassembly and preventing jamming. Furthermore, the balance block 613 of the adjustment structure 61 can restrain the two sets of electric motors 612 vertically, allowing the pulleys 611 of the electric motors 612 to contact the surface of the assembly frame 2. The electric motors 612 drive the pulleys 611 through forward and reverse rotation, effectively driving the jet pipe 62 and the pneumatic turning body 63 to reciprocate vertically. Simultaneously, the sealing sleeve 616 and rubber sleeve 617 on the balance block 613 cover both ends of the jet pipe 62, preventing air leakage through double sealing. Then, the pull frame 615 and push rod 614 are used to adjust the rubber... The forced inward pulling of sleeve 617 loosens both ends of the jet pipe 62, ensuring convenient disassembly and preventing difficult removal due to small gaps. Finally, the sleeve body 6162 of the sealing sleeve 616 can be precisely fixed to the center of the surface of the balance block 613 by the corner locking bolt 6161 and the protrusion 6163. Then, the position of the rebound block 6166 is determined by the reinforcing block 6165 of the internal limiting frame 6164, so that the push rod 614 can pass through the center of the rebound sleeve 6166 and be pulled at its center position to achieve a stable pulling effect. This prevents tilting and jamming due to excessive gaps and improves the stability of the push rod 614 when it is stationary, avoiding automatic pushing. Therefore, the overall stability of the device is further improved.

[0041] Example 2: Figures 6 to 7 As shown: This invention provides a pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil. Its structure includes a tipped block 6361 on the flipping body 636, a balance plate 6362 connected to the upper end of the tipped block 6361, an inclined plate 6363 connected to the upper edge of the balance plate 6362, a slot 6364 generated in the center distance of the inclined plate 6363, and a vertical block 6365 connected to the center of the slot 6364.

[0042] The pointed block 6361 is triangular in shape, and the two inclined plates 6363 of the upper balance plate 6362 are set in a symmetrical position to cover the edge of the slot 6364. The lower end of the air pipe 634 is inserted through the slot 6364 and the lower end of the air pipe 634 is blocked by the vertical block 6365.

[0043] The inclined plate 6363 is also provided with a contact layer 3631, which is integral with the plate body 3632. The upper end of the plate body 3632 is provided with a contact surface 3633, and a flow groove 3634 opened at the contact surface 3633 penetrates the plate body 3632 and the sharp corner block 6361.

[0044] The contact layer 3631 of the plate 3632 covers the edge of the slot 6364, and the contact layer 3633 of the plate 3632 is smooth and has multiple flow grooves 3634.

[0045] The specific functions and operation procedures of this embodiment are as follows: In this invention, the balance plate 6362 of the turning body 636 can be embedded into the soil through the lower pointed block 6361. Then, the inclined plate 6363 on the balance plate 6362 is used to turn the soil upward. At the same time, the slot 6364 of the inclined plate 6363 can be combined with the vertical block 6365 to allow the lower end of the air pipe 634 to be embedded, achieving a limiting and clamping effect on the lower end of the air pipe 634, improving the connection stability with the turning body 636. After the pneumatic turning operation, the plate 3632 of the inclined plate 6363 can automatically slide out due to the inertia and tilting position of the residual soil combined with the moving device through the upper smooth contact surface 3633 and the opened flow groove 3634, preventing the situation of carrying contaminated soil out of the contaminated area. This ensures that the device will not carry contaminated soil out of the contaminated area after the pneumatic turning operation, thus improving the working strength of the device.

[0046] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solutions described in this invention, or by designing similar technical solutions by those skilled in the art under the inspiration of the technical solutions described in this invention, falls within the protection scope of this invention.

Claims

1. A pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil, comprising: The assembly includes a control terminal (1), an assembly frame (2), a cylinder (3), a switch (4), a pushing end (5), and a throwing structure (6). One end of the control terminal (1) is welded to the outer surface of the assembly frame (2), and the switch (4) mounted on the upper end of the assembly frame (2) electrically controls the cylinder (3). The lower end of the cylinder (3) is connected to the throwing structure (6). The lower end of the assembly frame (2) and the pushing end (5) are an integrated structure. The characteristic feature is that: The turning and throwing structure (6) is provided with an adjustment structure (61), which is located at both ends of the jet pipe (62). The lower end of the jet pipe (62) is equipped with a pneumatic turning and throwing body (63), and the upper end of the jet pipe (62) is connected to a guide pipe (64) and a fixing block (65) is provided at the upper end of the guide pipe (64). The pneumatic turning and throwing body (63) is also provided with a connecting block (631). One end of the connecting block (631) is connected to an air collecting frame (632). The lower end of the air collecting frame (632) is connected to a magnetic suction plate (633). The lower end of the magnetic suction plate (633) is provided with an air outlet pipe (634). An air outlet hole (635) is opened on the edge of the air outlet pipe (634). A turning body (636) is mounted on the lower end of the air outlet pipe (634). The height of the jet pipe (62) and the pneumatic turning body (63) is adjusted up and down in the assembly frame (2) by the adjustment structure (61) of the turning structure (6). At the same time, the auxiliary pipe inside the guide pipe (64) slides down, and the gas enters the pneumatic turning body (63) and is ejected from the air outlet (635) of the air outlet pipe (634). During the process, the turning body (636) is inserted into the soil. Combined with the up and down reciprocating motion of the adjustment structure (61), the soil is pneumatically turned.

2. The pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil according to claim 1, characterized in that: The control end (1) is a stainless steel metal product and the push end (5) of the assembly frame (2) is manually pushed to move. The upper end of the assembly frame (2) is parallel to the cylinder (3), and the flipping structure (6) is set parallel to the internal position of the assembly frame (2).

3. The pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil according to claim 1, characterized in that: The adjustment structure (61) is provided at both ends of the jet pipe (62) and set in a symmetrical orientation. The pneumatic flipping body (63) is located at the lower end of the jet pipe (62) and connected to it. The guide pipe (64) is set at the upper end of the jet pipe (62) and set in a vertical orientation. It is equipped with a secondary pipe inside and extends and retracts with the up and down movement of the adjustment structure (61). The fixed block (65) is perpendicular to the upper end of the guide pipe (64).

4. The pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil according to claim 1, characterized in that: The connecting block (631) is distributed on the edge of the air collection frame (632) and embedded in the lower end of the jet pipe (62). It is then attracted and fixed by the magnetic suction plate (633). The air outlet pipe (634) is set in a vertical position and has multiple air outlet holes (635) on its edge. The flipping body (636) is located at the lower end of the air outlet pipe (634).

5. The pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil according to claim 1, characterized in that: The adjustment structure (61) is provided with a pulley (611), the pulley (611) is provided with an electric motor (612), and the lower end of the electric motor (612) is connected to the upper and lower ends of the balance block (613). The center of the balance block (613) is provided with a push rod (614), and the two ends are respectively connected to a pull frame (615) and a rubber sleeve (617). A sealing sleeve (616) is also connected to the surface of the balance block (613) and overlaps with the rubber sleeve (617). The pulley (611) allows the electric motor (612) to slide on the surface of the assembly frame (2). The balance block (613) restrains the position of the electric motor (612). The push rod (614) of the balance block (613) passes through the center. The push rod (614) allows the pull frame (615) to be pulled manually and the rubber sleeve (617) to clamp the two ends of the jet pipe (62) and then enter the sealing sleeve (616) for secondary edge sealing.

6. The pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil according to claim 5, characterized in that: The sealing sleeve (616) is also provided with a locking bolt (6161), which is located at the corner of the sleeve body (6162). A protrusion (6163) is connected to the center of the edge of the sleeve body (6162). A limit frame (6164) is also connected inside the sleeve body (6163). A reinforcing block (6165) is connected in the limit frame (6164). One end of the reinforcing block (6165) is connected to the edge of the rebound sleeve (6166). The locking bolts (6161) are provided at the corners of the sleeve (6162) and the two protrusions (6163) at the center are solid. The center of the limiting frame (6164) coincides with the center of the sleeve (6162). The limiting frame (6164) is equipped with four reinforcing blocks (6165) and restrains the rebound sleeve (6166). The center of the rebound sleeve (6166) is penetrated by the push rod (614).

7. The pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil according to claim 1, characterized in that: The flipping body (636) is also provided with a sharp corner block (6361), the upper end of the sharp corner block (6361) is connected to a balance plate (6362), the upper edge of the balance plate (6362) is connected to an inclined plate (6363), a slot (6364) is generated in the center distance of the inclined plate (6363), and a vertical block (6365) is connected to the center of the slot (6364). The pointed block (6361) is triangular in shape and the two inclined plates (6363) of the upper balance plate (6362) are set in a symmetrical position to cover the edge of the slot (6364). The lower end of the air pipe (634) is inserted through the slot (6364) and the lower end of the air pipe (634) is blocked by the vertical block (6365).

8. The pneumatic turning and turning device for microbial remediation of heavy metal contaminated soil according to claim 7, characterized in that: The inclined plate (6363) is also provided with a contact layer (3631), which is integral with the plate body (3632). The upper end of the plate body (3632) is provided with a contact surface (3633), and a flow groove (3634) opened at the contact surface (3633) penetrates the plate body (3632) and the sharp corner block (6361). The contact layer (3631) of the plate (3632) covers the edge of the slot (6364), and the contact layer (3633) of the plate (3632) is smooth and has multiple flow grooves (3634).

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