A soil contamination covering film

Abstract

The utility model provides a kind of contaminated soil covering film, it is related to soil remediation technical field, including film body and several positioning holes being set on the model body, a bolt structure is inserted in positioning hole, bolt structure includes plug, the compression cap fixedly connected by stem column and plug and the spring leaf of several circumferential uniform distribution on the outer side of stem column, spring leaf has the limiting step below compression cap on it.The utility model has the advantages of high reliability.

Description

Technical Field

[0001] This utility model relates to the field of soil remediation technology, and in particular to a soil covering film for contaminated soil. Background Technology

[0002] When contaminated soil is moved, transported, or temporarily stored, it needs to be covered to prevent the volatilization and loss of pollutants. When pollutants that are difficult to remediate are disposed of as hazardous waste through landfill, the landfill area also needs to be covered with a membrane. Existing covering membranes prevent the membrane from shifting or opening by placing weights on it. Long strips of covering membrane are spliced ​​together by overlapping. During construction, the workload of carrying weights increases, the splicing reliability is not high, and it is difficult to ensure the adhesion between the covering membrane and the soil layer. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention proposes a convenient construction method for covering contaminated soil.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a soil covering film for contaminated soil, characterized in that it includes a film body and a plurality of positioning holes formed on the film body, wherein a pin structure is inserted into the positioning holes, the pin structure includes a plug, a pressure cap fixedly connected to the plug via a rod, and a plurality of spring pieces evenly distributed circumferentially on the outside of the rod, wherein the spring pieces have a limiting step located below the pressure cap.

[0005] Furthermore, the pressure cap has a relief groove that corresponds one-to-one with the spring piece, the upper end of the spring piece is located in the relief groove, and the spring piece extends out of the pressure cap.

[0006] During operation, two adjacent pieces of cover film can be pressed together and the positioning holes overlapped. A pin structure is inserted into the two overlapping positioning holes at the same time, so that the two pieces of cover film are fixed together and inserted into the soil layer, thereby achieving positioning between them and the soil layer and preventing the cover film from flipping over and slipping relative to the soil surface.

[0007] The pin structure is designed to prevent the covering film from detaching. Furthermore, after insertion into the soil, it exhibits significant pull-back resistance, ensuring high reliability after insertion. When removal is required, the upper ends of the spring pieces can be squeezed inwards, causing them to converge. This allows the perforation to pass the limiting step and also compresses the soil for easier removal. Therefore, this structure not only effectively seals the perforation and secures the covering film to the soil but also allows for relatively easy removal of the pin structure. After insertion, a small amount of clean soil can be used to cover the positioning hole, further concealing any gaps in the film caused by the pin structure and increasing the resistance to pulling the pin structure outwards. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the membrane structure.

[0009] Figure 2 A three-dimensional view of the latch structure;

[0010] Figure 3 This is a schematic diagram of the structure when the pin structure is engaged with the positioning hole on the membrane body.

[0011] Legend: 1. Membrane body; 2. Positioning hole; 31. Plug; 32. Rod; 33. Pressure cap; 34. Spring; 35. Limiting step; 36. Clearance groove. Detailed Implementation

[0012] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0013] like Figure 1 , Figure 2 and Figure 3 As shown, the device includes a membrane body 1 made of HDPE material and several positioning holes 2 opened on the membrane body. A plastic pin structure is inserted into the positioning hole 2. The pin structure includes a plug 31, a pressure cap 33 fixedly connected to the plug 31 through a rod 32, and several spring pieces 34 evenly distributed around the outside of the rod 32. The spring pieces 34 have a limiting step 35 located below the pressure cap 33. The pressure cap 33 has a relief groove 36 corresponding to the spring pieces 34. The upper end of the spring piece 34 is located in the relief groove 36, and part of the spring piece 34 extends out of the pressure cap 33.

[0014] During operation, two adjacent cover films can be pressed together and the positioning holes 2 can be overlapped. A pin structure can be inserted into the two overlapping positioning holes 2 at the same time, so that the two cover films are fixed together and inserted into the soil layer, thereby achieving positioning between them and the soil layer and preventing the cover film from flipping over and slipping relative to the soil surface.

[0015] The pin structure is designed to prevent the covering film from detaching. Furthermore, after insertion into the soil, it exhibits significant pull-back resistance, ensuring high reliability after insertion. When removal is required, the upper ends of each spring piece 34 can be squeezed inwards, causing them to converge. This allows the perforation to pass over the limiting step 35 and also compresses the soil for easier removal. Therefore, this structure not only effectively seals the perforation and secures the covering film to the soil but also allows for relatively easy removal of the pin structure. After insertion, a small amount of clean soil can be used to cover the positioning hole 2, further concealing any gaps in the film caused by the pin structure and increasing the resistance to pulling the pin structure outwards.

[0016] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A soil cover film for contaminated soil, characterized in that, It includes a membrane body (1) and several positioning holes (2) opened on the membrane body. A pin structure is inserted into the positioning hole (2). The pin structure includes a plug (31), a pressure cap (33) fixedly connected to the plug (31) through a rod (32), and several spring pieces (34) evenly distributed on the outside of the rod (32) in a circumferential direction. The spring pieces (34) have a limiting step (35) located below the pressure cap (33).

2. The soil cover film according to claim 1, characterized in that, The pressure cap (33) has a relief groove (36) that corresponds one-to-one with the spring piece (34). The upper end of the spring piece (34) is located in the relief groove (36), and part of the spring piece (34) extends out of the pressure cap (33).

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