A coiled material connection structure and usage method for in-situ barrier of contaminated soil

Abstract

The present invention relates to the technical field of the connection of barrier coils in landfills, and provides a coil connection structure and a usage method for in-situ barrier of polluted soil, which include a sealing assembly, a connecting cylinder and an opening cover assembly. The sealing assembly is arranged on the barrier coil, the connecting cylinder is arranged on the sealing assembly, and the opening cover assembly is sleeved in the connecting cylinder. The sealing assembly includes: a connecting seat for fixedly and sealingly connecting with the barrier coil; a housing arranged on the connecting seat, and the housing has a through hole; a sealing cover passes through the through hole, and the sealing cover is used for sealing the through hole. After the opening cover assembly rotates, it abuts against the sealing cover and opens the sealing cover. Through the above technical solution, the problem of difficult disassembly and assembly of the connection between the water pipe and the barrier coil in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of landfill barrier coil connection, and specifically, to a coil connection structure and a usage method for in-situ barrier of polluted soil. Background Art

[0002] A landfill is a site where garbage is centrally stacked under the sanitary landfill method. Sanitary landfills for garbage are widely used in China because of their low cost and good sanitation. Generally, landfills for garbage are treated by the method of layered soil covering. After piling up a layer of garbage, a layer of loess is covered, which can easily reduce the pollution of the garbage. The leachate treatment system in the construction of domestic waste landfills is the key to the success of landfill technology, which is directly related to the degree of pollution of nearby surface water. Therefore, when constructing a landfill, it is necessary to lay barrier coils at the same time, which can effectively block the infiltration of surface water. However, sometimes the groundwater will flow back up into the landfill and then squeeze the barrier coil at the top, which will cause the barrier coil at the top of the landfill to bear a great pressure, and the barrier coil may rupture, resulting in the sinking of surface water. After passing through the landfill, it sinks into the groundwater, polluting the water source.

[0003] In the prior art, generally, a hole or a structure similar to a water well is drilled at the location of the landfill, and then the water is pumped out through a water pump. However, when drilling a well, it is very difficult to weld the water pipe to the barrier coil. Then, it is also laborious to disassemble it later, and the sealing performance cannot be guaranteed after disassembly. Summary of the Invention

[0004] The present invention provides a coil connection structure and a usage method for in-situ barrier of polluted soil, which solve the problem of difficult connection and disassembly between the water pipe and the barrier coil in the related art.

[0005] The technical solution of the present invention is as follows:

[0006] A coil connection structure for in-situ barrier of polluted soil includes a sealing component, a connection cylinder, and an opening cover component. The sealing component is arranged on the barrier coil, the connection cylinder is arranged on the sealing component, and the opening cover component is sleeved in the connection cylinder. The sealing component includes:

[0007] A connection seat for fixedly and sealingly connecting with the barrier coil;

[0008] A shell arranged on the connection seat, and the shell has a through hole;

[0009] A sealing cover passing through the through hole, the sealing cover is used to seal the through hole, and after the opening cover component rotates, it abuts against the sealing cover and opens the sealing cover.

[0010] As a further technical solution, a blocking block is provided on the housing, and the sealing cover includes:

[0011] A cover body, slidably disposed in the through hole, and the cover body is in sealing contact with the connecting seat;

[0012] A rotating shaft, rotatably disposed on the cover body and passing through the cover body;

[0013] A shift lever, disposed on the rotating shaft, and after the rotating shaft rotates, it abuts against the blocking block, and the blocking block is used to block the movement of the cover body.

[0014] As a further technical solution, the sealing cover further includes a rotating rod, the rotating rod is disposed on the rotating shaft, there is a passing space between the rotating rod and the cover body, the rotating rod and the shift lever are respectively located on both sides of the cover body, the shift lever is located on the side close to the barrier coil, and the opening cover assembly includes:

[0015] An opening cover member, sleeved in the connecting cylinder;

[0016] A connecting rod, disposed on the opening cover member;

[0017] A hook, disposed on the connecting rod, after the opening cover member rotates, the hook is located in the passing space and abuts against the rotating rod.

[0018] As a further technical solution, the upper bottom of the connecting cylinder has a thread, and the opening cover assembly further includes a rotating ring, the rotating ring has a thread, after the rotating ring slides along the connecting cylinder, the rotating ring is threadedly connected to the connecting cylinder, the rotating ring has a through hole, the axis of the through hole is coaxial with the axis of the connecting cylinder, the opening cover member is slidably disposed in the through hole, the rotating ring has a first groove and a second groove, the first groove is disposed along the axis direction of the through hole, the second groove communicates with the first groove and is not on the same straight line, and the opening cover member includes:

[0019] A sliding body, slidably disposed in the through hole, and the connecting rod is disposed at the bottom of the sliding body;

[0020] A guiding block, disposed on the sliding body, when the sliding body slides, the guiding block slides along the first groove and the second groove.

[0021] As a further technical solution, the opening cover member further includes:

[0022] An extension rod, threadedly connected to the sliding body.

[0023] As a further technical solution, the bottom of the sliding body has an opening groove, the connecting rod is slidably disposed in the opening groove, and further includes:

[0024] An elastic member is disposed in the opening groove, with two ends respectively connected to the sliding body and the connecting rod. The elastic member is used to provide a force for the connecting rod to move away from the sliding body.

[0025] As a further technical solution, the hook includes a horizontal section and an inclined section. One end of the horizontal section is connected to the connecting rod, and the inclined section is disposed at the other end of the horizontal section. The inclined direction of the inclined section is away from the sliding body.

[0026] As a further technical solution, the top of the connecting cylinder also has a thread. The connecting cylinder has an opening and a plurality of sliding grooves. The sliding grooves are arranged circumferentially along the axis of the connecting cylinder. The axis of the sliding groove is parallel to the axis of the connecting cylinder, and the sliding grooves are located at the top of the connecting cylinder. It further includes:

[0027] A receiving member is slidably disposed in the connecting cylinder, and the receiving member slides along the sliding groove.

[0028] As a further technical solution, it further includes:

[0029] Positioning rods, there are several of them, and they are arranged circumferentially on the connecting seat.

[0030] A method for using a coiled material connection structure for in-situ isolation of contaminated soil includes the following steps:

[0031] S1. Arrangement: After the landfill is filled, lay the barrier coiled material, drill holes in the barrier coiled material, then seal and connect the sealing component with the barrier coiled material. The sealing component seals the hole, measure the position of the sealing component and backfill the landfill.

[0032] S2. Positioning: When it is detected that pumping is required, find the position of the sealing component according to the measurement. By manually excavating a part of the soil, the positioning rod can be found, and the accurate position of the sealing component can be located through the positioning rod.

[0033] S3. Drilling through: Use existing equipment for drilling and excavation until the sealing component is dug out. Then lower the connecting cylinder and make it abut against the sealing component. Then backfill part of the soil on the outer wall of the connecting cylinder to keep the connecting cylinder balanced.

[0034] S4. Opening the cover: Assemble the extension rod, the sliding body and the rotating ring. Manually lower the sliding body and the rotating ring along the connecting cylinder. When the rotating ring is in threaded abutment with the connecting cylinder, rotate the extension rod to drive the rotating ring to rotate. The rotating ring and the sliding body rotate and descend until the hook hooks the rotating rod. The extension rod continues to rotate to make the blocking rod leave the blocking block by a certain distance.

[0035] S5. Remove the sealing cover: Reverse the extension rod. At this time, the guide block slides along the second groove and the first groove, then leaves the rotating ring, and pull the extension rod to remove the sealing cover;

[0036] S6. Pump water: Place the receiving part into the connecting cylinder, and place the water pump on the receiving part, and pump water through the water pump;

[0037] S7. Close: After pumping water, remove the water pump and the receiving part, place the sealing cover on the hook, then put it into the connecting cylinder through the extension rod, so that the sealing cover enters the through hole, rotate the extension rod, at this time the rotation direction of the extension rod is the same as the rotation direction in S4, so that the blocking rod abuts against the blocking block, and the sealing cover seals the through hole; Reverse the extension rod to disengage the hook from the rotating rod, remove the extension rod and the connecting cylinder, and finally backfill.

[0038] The working principle and beneficial effects of the present invention are as follows:

[0039] 1. In the present invention, the sealing component is connected to the barrier coil to achieve the sealing and blocking effect. When pumping water is required, the sealing component is dug out manually, then the connecting cylinder is placed on the sealing component, and the sealing cover is opened and removed through the opening component, and the water pump pumps water; After pumping water, cover the sealing cover again, then remove the connecting cylinder and backfill; The operation is simple, and the process of opening and closing the sealing cover is simple and fast, avoiding processes such as welding; Moreover, it can be sealed after pumping water to prevent surface water from seeping;

[0040] 2. In the present invention, the sealing cover is installed and removed through the opening component, and there is no need for people to go down into the dug hole, reducing the amount of excavation and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The present invention will be further described in detail below in conjunction with the drawings and specific embodiments.

[0042] Figure 1 is a schematic structural diagram of the present invention in a sealed state;

[0043] Figure 2 is a schematic structural diagram of the present invention when it is ready to be opened;

[0044] Figure 3 is a schematic structural diagram of the present invention after being opened;

[0045] Figure 4 is Figure 3 the enlarged view at A in

[0046] Figure 5 is a schematic structural diagram of the present invention;

[0047] Figure 6 is Figure 5 The enlarged view at position B in

[0048] Figure 7 The schematic structural view of the sealing component of the present invention;

[0049] Figure 8 The bottom view of the sealing component of the present invention;

[0050] Figure 9 The schematic structural view of the sealing component of the present invention;

[0051] Figure 10 is Figure 9 The enlarged view at position C in

[0052] Figure 11 The schematic structural view of the rotating ring of the present invention;

[0053] In the figure: 1. Sealing component, 2. Connecting cylinder, 3. Opening cover component, 4. Connecting seat, 5. Housing, 6. Sealing cover, 7. Blocking block, 8. Cover body, 9. Rotating shaft, 10. Shift lever, 11. Rotating rod, 12. Opening cover part, 13. Connecting rod, 14. Hook, 15. Rotating ring, 16. Through hole, 17. First groove, 18. Second groove, 19. Sliding body, 20. Guide block, 21. Extension rod, 22. Elastic member, 23. Opening, 24. Slide groove, 25. Bearing part, 26. Positioning rod. Specific embodiments

[0054] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

[0055] As Figures 1 to 11 shown, this embodiment proposes

[0056] A coiled material connection structure for in-situ barrier of contaminated soil, including a sealing component 1, a connecting cylinder 2 and an opening cover component 3. The sealing component 1 is arranged on the barrier coiled material, the connecting cylinder 2 is arranged on the sealing component 1, and the opening cover component 3 is sleeved in the connecting cylinder 2. The sealing component 1 includes:

[0057] A connecting seat 4, which is used for fixedly and sealingly connecting with the barrier coiled material;

[0058] A housing 5, arranged on the connecting seat 4, and the housing 5 has a through hole;

[0059] The sealing cover 6 passes through the through hole, and is used to seal the through hole. After the cover opening assembly 3 rotates, it abuts against the sealing cover 6 and opens the sealing cover 6.

[0060] In this embodiment, the connection seat 4 is connected to the barrier coil, and then the through hole on the shell 5 is connected through the sealing cover 6, so that the shell 5, the sealing cover 6, and the barrier coil form a seal, which covers the garbage, and then the soil is used for backfilling to complete the landfill of the garbage. Due to the sealing cover 6, surface water will not enter the garbage when it seeps. Before landfilling, the position of the sealing component 1 is measured and recorded. When it is necessary to pump water, a hole is manually dug according to the recorded position to leak out the sealing component 1, and then the connecting tube 2 is released. The connecting tube 2 abuts against the connection seat 4 of the sealing component 1, and then the sealing cover 6 is taken out through the opening cover component 3, that is, the through hole is opened, and the water can be pumped out by extending the water pump into the through hole. It is easy to install and disassemble, and there is no need to perform welding and other operations. When not in use, the sealing cover 6 can be used to seal the through hole.

[0061] Further, the housing 5 is provided with a blocking block 7, and the sealing cover 6 comprises:

[0062] The cover body 8 is slidably disposed in the through hole, and the cover body 8 is in sealing contact with the connecting seat 4;

[0063] A rotating shaft 9 is rotatably disposed on the cover body 8 and penetrates the cover body 8;

[0064] The shift lever 10 is arranged on the rotating shaft 9. After the rotating shaft 9 rotates, it abuts against the blocking block 7. The blocking block 7 is used to prevent the cover body 8 from moving.

[0065] In this embodiment, the structure of the sealing cover 6 is described in detail. The cover opening component 3 drives the rotating shaft 9 to rotate, which can drive the shift lever 1010 to rotate, so that the shift lever 10 and the blocking block 7 are abutted or not abutted. When abutting, the sealing cover 6 can be locked on the shell 5. When not abutting, the sealing cover 6 can be taken out through the cover opening component 3.

[0066] Further, the sealing cover 6 further includes a rotating rod 11, which is arranged on the rotating shaft 9, and there is a passing space between the rotating rod 11 and the cover body 8, the rotating rod 11 and the stop rod 10 are respectively located on both sides of the cover body 8, and the stop rod 10 is located on the side close to the barrier coil, and the cover opening assembly 3 includes:

[0067] The cover opening member 12 is sleeved in the connecting tube 2;

[0068] A connecting rod 13 is provided on the cover opening member 12;

[0069] The hook 14 is arranged on the connecting rod 13 . After the cover opening member 12 rotates, the hook 14 is located in the passing space and abuts against the rotating rod 11 .

[0070] Further, the upper bottom of the connecting cylinder 2 has threads. The lid-opening assembly 3 further includes a rotating ring 15 which has threads. After the rotating ring 15 slides along the connecting cylinder 2, the rotating ring 15 is threadedly connected to the connecting cylinder 2. The rotating ring 15 has a through hole 16, and the axis of the through hole 16 is coaxial with the axis of the connecting cylinder 2. The lid-opening member 12 is slidably disposed within the through hole 16. The rotating ring 15 has a first groove 17 and a second groove 18. The first groove 17 is arranged along the axis direction of the through hole 16, and the second groove 18 communicates with the first groove 17 and is not on the same straight line. The lid-opening member 12 includes:

[0071] A sliding body 19, slidably disposed within the through hole 16, and a connecting rod 13 is disposed at the bottom of the sliding body 19;

[0072] A guiding block 20, disposed on the sliding body 19. When the sliding body 19 slides, the guiding block 20 slides along the first groove 17 and the second groove 18.

[0073] In this embodiment, the structure of the lid-opening assembly is introduced in detail. Specifically: when it is necessary to open the sealing cover 6, the lid-opening assembly 3 is released along the connecting cylinder 2. When the rotating ring 15 is threadedly connected to the connecting cylinder 2, the sliding body 19 can drive the rotating ring 15 to rotate. Under the action of the threads, the lid-opening assembly 3 continues to descend. When the hook 14 hooks the rotating rod 11, the connecting rod 13 will push the rotating rod 11 to rotate, thereby driving the shifting lever 10 to rotate. When the shifting lever 10 disengages from the blocking block 7, the sliding body 19 is rotated in the reverse direction, and the guiding block 20 will enter the first groove 17 along the second groove 18, and then the sliding body 19 is taken out. The hook 14 will drive the sealing cover 6 to rise, thereby opening the through hole.

[0074] Further, the lid-opening member 12 further includes:

[0075] An extension rod 21, threadedly connected to the sliding body 19.

[0076] In this embodiment, in order to facilitate the sliding or rotation of the sliding body 19, an extension rod 21 is provided on the sliding body 19, and the sliding body 19 is driven to rotate or slide through the extension rod 21.

[0077] Further, the bottom of the sliding body 19 has an opening groove, and the connecting rod 13 is slidably disposed within the opening groove. It further includes:

[0078] An elastic member 22, disposed within the opening groove, with both ends respectively connected to the sliding body 19 and the connecting rod 13. The elastic member 22 is used to provide a force for the connecting rod 13 to move away from the sliding body 19.

[0079] Further, the hook 14 includes a horizontal section and an inclined section. One end of the horizontal section is connected to the connecting rod 13, and the inclined section is disposed at the other end of the horizontal section. The inclined direction of the inclined section is away from the sliding body 19.

[0080] In this embodiment, since it is impossible to completely clean the soil on the sealing cover 6, to prevent the hook 14 from abutting against the soil and being unable to descend when it descends, and to prevent the hook 14 from interfering with the rotating rod 11, the connecting rod 13 is arranged on the sliding body 19 through the elastic member 22, and the front end of the hook 14 is at an angle inclined downward. When the hook 14 contacts the soil, the inclined part will insert into the soil and drive the sliding body 19 to descend. When the hook 14 contacts the rotating rod 11, it can slide under the action of the elastic member 22, that is, it can have a certain amount of movement, so that it can easily cross over the rotating rod 11 and hook the rotating rod 11.

[0081] Further, the top of the connecting cylinder 2 also has a thread. The connecting cylinder 2 has an opening 23 and a plurality of sliding grooves 24. The sliding grooves 24 are arranged circumferentially along the axis of the connecting cylinder 2. The axis of the sliding groove 24 is parallel to the axis of the connecting cylinder 2, and the sliding grooves 24 are located at the top of the connecting cylinder 2. It further includes:

[0082] A receiving member 25, which is slidably arranged in the connecting cylinder 2 and slides along the sliding groove 24.

[0083] In this embodiment, a thread is provided at the top of the connecting cylinder 2 so that after the sealing cover 6 is taken out, then the rotating ring 15 is taken out through the sliding body 19. After the receiving member 25 is placed in the connecting cylinder 2 and a water pump or the like is connected, the rotating ring 15 is threadedly connected to the top of the connecting cylinder 2, and then the sliding body 19 and the sealing cover 6 are arranged on the rotating ring 15. The rotating ring 15 and the sliding body 19 form the cover of the connecting cylinder to prevent the water pump from being damaged.

[0084] Further, it further includes:

[0085] Positioning rods 26, there are several of them, which are arranged circumferentially on the connecting seat 4.

[0086] A specific usage method of a coil connection structure for in-situ isolation of contaminated soil is as follows:

[0087] S1. Arrangement: After the landfill is filled, lay the barrier coil, drill holes in the barrier coil, then seal and connect the sealing component 1 with the barrier coil. The sealing component 1 seals the hole, measure the position of the sealing component 1 and backfill the landfill;

[0088] S2. Positioning: When it is detected that pumping is required, find the position of the sealing component 1 according to the measurement. By manually excavating a part of the soil, the positioning rod 26 can be found, and the accurate position of the sealing component 1 can be located through the positioning rod 26;

[0089] S3. Drilling through: Use existing equipment for drilling and excavation until the sealing component 1 is dug out, then lower the connecting cylinder 2 and make it abut against the sealing component 1, and then backfill part of the soil on the outer wall of the connecting cylinder 2 to keep the connecting cylinder 2 balanced;

[0090] S4. Open the cover: Assemble the extension rod 21, the sliding body 19 and the rotating ring 15. Manually lower the sliding body 19 and the rotating ring 15 along the connecting tube 2. When the rotating ring 15 is in threaded contact with the connecting tube 2, rotate the extension rod 21 to drive the rotating ring 15 to rotate. The rotating ring 15 and the sliding body 19 rotate and descend until the hook 14 hooks the rotating rod 11. Continue to rotate the extension rod 21 to make the shift lever 10 move away from the blocking block 7 by a certain distance.

[0091] S5. Remove the sealing cover 6: Reverse the extension rod 21. At this time, the guiding block 20 slides along the second groove 18 and the first groove 17 and then leaves the rotating ring 15. Pull the extension rod 21 to remove the sealing cover 6.

[0092] S6. Pump water: Place the receiving part 25 into the connecting tube 2 and place the water pump on the receiving part 25. Pump water through the water pump.

[0093] S7. Close: After pumping water, remove the water pump and the receiving part 25. Place the sealing cover 6 on the hook 14 and then put it into the connecting tube 2 through the extension rod 21 to make the sealing cover 6 enter the through hole. Rotate the extension rod 21. At this time, the rotation direction of the extension rod 21 is the same as that in S4, so that the shift lever 10 abuts against the blocking block 7 and the sealing cover 6 seals the through hole. Reverse the rotation of the extension rod 21 to disengage the hook 14 from the rotating rod 11. Remove the extension rod 21 and the connecting tube 2, and finally backfill.

[0094] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coiled material connection structure for in-situ isolation of contaminated soil, characterized in that It includes a sealing assembly (1), a connecting cylinder (2) and an opening cover assembly (3). The sealing assembly (1) is arranged on the barrier coil. The connecting cylinder (2) is arranged on the sealing assembly (1). The opening cover assembly (3) is sleeved in the connecting cylinder (2). The upper bottom of the connecting cylinder (2) has a thread. The sealing assembly (1) includes: A connecting seat (4) which is used for fixedly and sealingly connecting with the barrier coil; A housing (5) arranged on the connecting seat (4). The housing (5) has a through hole and a blocking block (7); A sealing cover (6) passing through the through hole. The sealing cover (6) is used for sealing the through hole. After the opening cover assembly (3) rotates, it abuts against the sealing cover (6) and opens the sealing cover (6). The sealing cover (6) includes: A cover body (8) slidably arranged in the through hole. The cover body (8) is in sealing abutment with the connecting seat (4); A rotating shaft (9) rotatably arranged on the cover body (8) and passing through the cover body (8); A shifting rod (10) arranged on the rotating shaft (9). After the rotating shaft (9) rotates, it abuts against the blocking block (7). The blocking block (7) is used for blocking the movement of the cover body (8). The shifting rod (10) is located on the side close to the barrier coil; A rotating rod (11) arranged on the rotating shaft (9). There is a through space between the rotating rod (11) and the cover body (8). The rotating rod (11) and the shifting rod (10) are respectively located on both sides of the cover body (8), The opening cover assembly (3) includes: A rotating ring (15) which has a thread. After the rotating ring (15) slides along the connecting cylinder (2), the rotating ring (15) is threadedly connected with the connecting cylinder (2). The rotating ring (15) has a through hole (16). The axis of the through hole (16) is coaxial with the axis of the connecting cylinder (2). The rotating ring (15) has a first groove (17) and a second groove (18). The first groove (17) is arranged along the axis direction of the through hole (16). The second groove (18) communicates with the first groove (17) and is not on the same straight line; An opening cover member (12) slidably arranged in the through hole (16). The opening cover member includes a sliding body (19) and a guiding block (20). The opening cover member (12) is slidably arranged in the through hole (16). The guiding block (20) is arranged on the sliding body (19). When the sliding body (19) slides, the guiding block (20) slides along the first groove (17) and the second groove (18); A connecting rod (13) arranged on the opening cover member (12). The connecting rod (13) is arranged at the bottom of the sliding body (19); A hook (14) arranged on the connecting rod (13). After the opening cover member (12) rotates, the hook (14) is located in the through space and abuts against the rotating rod (11).

2. The roll connection structure for in-situ barrier of contaminated soil according to claim 1, characterized in that, The opening cover member (12) further includes: An extension rod (21), wherein the extension rod (21) is threadedly connected to the sliding body (19).

3. The coiled material connection structure for in-situ barrier of contaminated soil according to claim 2, characterized in that, The bottom of the sliding body (19) has an open groove, and the connecting rod (13) is slidably arranged in the open groove, and further comprises: An elastic member (22) is disposed in the open groove, with two ends respectively connected to the sliding body (19) and the connecting rod (13), and the elastic member (22) is used to provide a force for moving the connecting rod (13) away from the sliding body (19).

4. A coiled material connection structure for in-situ barrier of contaminated soil according to claim 3, characterized in that, The hook (14) comprises a horizontal section and an inclined section, one end of the horizontal section is connected to the connecting rod (13), and the inclined section is arranged at the other end of the horizontal section, with the inclined direction of the inclined section being away from the sliding body (19).

5. A roll connection structure for in-situ barrier of contaminated soil according to claim 4, characterized in that, The top of the connecting tube (2) also has a thread, and the connecting tube (2) has an opening (23) and a plurality of slide grooves (24). The slide grooves (24) are arranged along the circumference of the axis of the connecting tube (2). The axis of the slide grooves (24) is parallel to the axis of the connecting tube (2), and the slide grooves (24) are located at the top of the connecting tube (2). The connecting tube (2) also includes: A receiving member (25) is slidably disposed in the connecting tube (2), and the receiving member (25) slides along the sliding groove (24).

6. A coiled material connection structure for in-situ barrier of contaminated soil according to claim 5, characterized in that, Also includes: There are a plurality of positioning rods (26) which are circumferentially arranged on the connecting seat (4).

7. A method for using a connection structure of coils for in-situ isolation of contaminated soil, which uses a connection structure of coils for in-situ isolation of contaminated soil according to claim 6, characterized in that, The steps include: S1. Arrangement: After the landfill is completed, a barrier roll is laid, holes are punched in the barrier roll, and then the sealing component (1) is sealed and connected to the barrier roll. The sealing component (1) seals the hole, and the position of the sealing component (1) is measured and the landfill is backfilled; S2, positioning: when it is detected that pumping is required, the position of the sealing component (1) is found according to measurement, a portion of soil is manually excavated to find the positioning rod (26), and the sealing component (1) is accurately positioned by the positioning rod (26); S3, breaking through: using existing equipment to drill and dig out the sealing component (1), then releasing the connecting tube (2) and making it abut against the sealing component (1), and then backfilling part of the soil on the outer wall of the connecting tube (2) to keep the connecting tube (2) balanced; S4, opening the cover: assembling the extension rod (21), the sliding body (19) and the rotating ring (15), manually lowering the sliding body (19) and the rotating ring (15) along the connecting tube (2), when the rotating ring (15) is in threaded contact with the connecting tube (2), rotating the extension rod (21), driving the rotating ring (15) to rotate, the rotating ring (15) and the sliding body (19) rotate and descend until the hook (14) hooks the rotating rod (11), and the extension rod (21) continues to rotate, so that the gear rod (10) is moved away from the blocking block (7) by a certain distance; S5. Remove the sealing cover (6): Reverse the extension rod (21). At this time, the guide block (20) slides along the second groove (18) and the first groove (17), and then leaves the rotating ring (15). Pull the extension rod (21) to remove the sealing cover (6). S6. Pump water: Place the receiving member (25) into the connecting cylinder (2), place the water pump on the receiving member (25), and pump water through the water pump. S7. Close: After pumping water, remove the water pump and the receiving member (25). Place the sealing cover (6) on the hook (14), and then put it into the connecting cylinder (2) through the extension rod (21) so that the sealing cover (6) enters the through hole. Rotate the extension rod (21). At this time, the rotation direction of the extension rod (21) is the same as that in S4, so that the blocking rod (10) abuts against the blocking block (7), and the sealing cover (6) seals the through hole. Reverse-rotate the extension rod (21) to disengage the hook (14) from the rotating rod (11), remove the extension rod (21) and the connecting cylinder (2), and finally backfill.

Images