Structure of HDPE (high-density polyethylene) pipe penetrating geomembrane for landfill

Abstract

The utility model discloses an HDPE (high-density polyethylene) pipe penetrating geomembrane structure for landfill, which comprises a connecting base plate and a sealing top plate, a sleeve is mounted in the middle of the top of the connecting base plate, a geomembrane main body is sleeved on the periphery of the sleeve, the top of the periphery of the sleeve is in threaded connection with the sealing top plate, and the sealing top plate is in threaded connection with the connecting base plate. A plurality of sets of sealing grooves are formed in the surface of the top of the connecting bottom disc, and a plurality of sets of sealing protrusions are arranged at the bottom of the sealing top disc. By adopting the connecting base plate and the sealing top plate, in the actual use process, the connecting base plate only needs to be placed into a hole formed in the surface of the geomembrane and attached to the surface of the geomembrane, then the sealing top plate is rotationally extruded into the connecting base plate, and the geomembrane and the sleeve can be rapidly connected; and the number of adopted structures is small during overall connection, the connection mode is more fool, people can flexibly and rapidly use the device conveniently, and the device has the advantages of being simple in structure and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe-through-membrane anti-seepage construction, in particular to a structure in which a HDPE pipe for a landfill passes through a geomembrane. Background Art

[0002] In the construction and closure of landfills, anti-seepage engineering is an indispensable link, and geomembrane is the most important anti-seepage material used in anti-seepage engineering. When the garbage pile in the landfill degrades, landfill gas will be generated, and a large amount of leachate will be generated at the same time. The leachate gathers at the bottom of the landfill, and a leachate drainage pipe is installed at the bottom of the landfill. Therefore, in the design and construction process, it is inevitable to involve the connection structure of the pipe passing through the geomembrane.

[0003] The existing disclosed technology has a publication number of CN218405570U. A structure in which a HDPE pipe for a landfill passes through a geomembrane includes a HDPE pipe and a geomembrane. The geomembrane is provided with a hole, a pipe sleeve is inserted into the hole, an annular pipe skirt is provided on the outer periphery of the pipe sleeve, the geomembrane at the outer edge of the hole is inserted between the pipe sleeve and the pipe skirt, a first clamp and a second clamp are provided on the outer periphery of the pipe sleeve, the HDPE pipe is inserted into the pipe sleeve, and one end of the HDPE pipe is hot-melt welded to the end of the pipe sleeve. This solves the problem in the prior art that due to the direct welding of the HDPE film and the HDPE pipe, a large number of wrinkles will be present in the HDPE film at the connection between the pipe and the membrane, and the wrinkles are prone to leakage during long-term operation. This structure eliminates the weak links of the anti-seepage system, strengthens the anti-seepage effect of the overall structure, and has the advantages of simple structure, convenient operation, shortened construction period, and reliable quality.

[0004] However, the above patent still has certain disadvantages when used: it uses more structures when performing tube-through-membrane processing, the operation is more complicated and cumbersome, the connection processing between steps requires more experience, and ordinary personnel cannot perform the operation well, which is not conducive to personnel's processing and use.

[0005] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a structure for a landfill HDPE pipe to pass through a geomembrane, which has the advantages of simple structure, convenient operation and good connection effect, thereby solving the problems in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] In order to achieve the above advantages of simple structure, convenient operation and good connection effect, the specific technical solutions adopted by the utility model are as follows:

[0010] A structure for a landfill HDPE pipe to pass through a geomembrane, comprising a connecting bottom plate and a sealing top plate, wherein a sleeve is installed at the middle position on the top of the connecting bottom plate, a geomembrane body is sleeved on the outer periphery of the sleeve, a sealing top plate is threadedly connected to the outer periphery of the sleeve, a plurality of sealing grooves are provided on the top surface of the connecting bottom plate, a plurality of sealing protrusions are provided on the bottom of the sealing top plate, water-swellable waterstop strips are wrapped on the surfaces of the sealing grooves and the surfaces of the sealing protrusions, and the HDPE pipe body is connected to the top of the sleeve.

[0011] Furthermore, the size of the sealing groove is the same as the size of the sealing protrusion.

[0012] Furthermore, a plurality of positioning holes are provided at the bottom end of the sleeve.

[0013] Furthermore, fastening rods are symmetrically installed on the outer surface of the sealing top plate.

[0014] Furthermore, the size of the fastening rod is the same as the size of the positioning hole.

[0015] Furthermore, the surface of the sleeve is provided with a thread groove, and the inner surface of the sealing top plate is also provided with a corresponding thread protrusion.

[0016] Furthermore, the size of the connecting bottom plate is the same as the size of the sealing top plate.

[0017] Furthermore, holes are provided on the surface of the geomembrane body, and the size of the holes is smaller than the size of the connecting chassis.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the utility model provides a structure for HDPE pipes for landfills to pass through geomembranes, which has the following beneficial effects:

[0020] (1) The utility model adopts a connecting bottom plate and a sealing top plate. In actual use, it is only necessary to put the connecting bottom plate into the hole opened on the surface of the geomembrane and make it fit with the surface of the geomembrane, and then rotate and squeeze the sealing top plate into the inside of the connecting bottom plate, so as to quickly realize the connection operation between the geomembrane and the casing. The overall connection adopts fewer structures, and the connection method is more fool-proof, which is convenient for personnel to use flexibly and quickly, and has the advantages of simple structure and easy operation.

[0021] (2) The utility model adopts a sealing groove, a sealing protrusion, a water-swelling waterstop strip, and a fastening rod. When the sealing top plate and the connecting bottom plate are fitted together, the geomembrane will be squeezed into the sealing groove by the sealing protrusion to achieve the sealed connection operation between the geomembrane and the casing. Since there are multiple groups of sealing grooves, the geomembrane can be sealed multiple times to improve the overall use effect. The sealing protrusion and the inside of the sealing groove are both provided with water-swelling waterstop strips to further improve the overall sealing effect and prevent the infiltration of sewage. At the same time, after the connecting bottom plate and the sealing top plate are connected, the fastening rod is inserted into the positioning hole or welded to the inside of the positioning hole to effectively prevent the two from falling off and ensure the sealing and fixing effect. Then the HDPE pipe can be inserted into the top of the casing and the corresponding heat sealing operation can be performed. At this time, the overall pipe-through-membrane structure is completed, which has the advantage of good connection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of a structure in which a HDPE pipe for a landfill passes through a geomembrane, as proposed by the utility model;

[0024] Figure 2 It is a structural schematic diagram of the sealing top plate of the utility model;

[0025] Figure 3 It is a structural schematic diagram of the water-expanding waterstop strip of the utility model;

[0026] Figure 4 It is a schematic diagram of an embodiment of the utility model.

[0027] In the figure:

[0028] 1. Connecting chassis; 2. Sealing groove; 3. Water-swelling waterstop strip; 4. Casing; 5. Geomembrane body; 6. Sealing top plate; 7. HDPE pipe body; 8. Sealing protrusion; 9. Fastening rod; 10. Hole; 11. Positioning hole. DETAILED DESCRIPTION

[0029] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0030] According to an embodiment of the utility model, a structure for a landfill HDPE pipe to pass through a geomembrane is provided.

[0031] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, according to an embodiment of the utility model, a structure of a HDPE pipe for a landfill passing through a geomembrane includes a connecting chassis 1 and a sealing top plate 6, a sleeve 4 is installed at the middle position on the top of the connecting chassis 1, a geomembrane body 5 is sleeved on the outer periphery of the sleeve 4, a sealing top plate 6 is threadedly connected to the outer periphery of the sleeve 4, a plurality of groups of sealing grooves 2 are opened on the top surface of the connecting chassis 1, a plurality of groups of sealing protrusions 8 are arranged at the bottom of the sealing top plate 6, the surfaces of the sealing grooves 2 and the surfaces of the sealing protrusions 8 are wrapped with water-swellable waterstop strips 3, and the top of the sleeve 4 is connected to a HDPE pipe body 7.

[0032] In one embodiment, the size of the sealing groove 2 is the same as the size of the sealing protrusion 8, and the same size ensures that the two can be tightly connected together, thereby improving the sealing effect of the entire pipe-through-membrane.

[0033] In one embodiment, a plurality of positioning holes 11 are formed at the bottom end of the sleeve 4 .

[0034] In one embodiment, fastening rods 9 are symmetrically installed on the outer surface of the sealing top plate 6 .

[0035] In one embodiment, the size of the fastening rod 9 is the same as the size of the positioning hole 11 , and the same size ensures that the two can be smoothly inserted and fixed.

[0036] In one embodiment, a thread groove is provided on the surface of the sleeve 4, and a corresponding thread protrusion is also provided on the inner surface of the sealing top plate 6. The arrangement of the thread groove and the thread protrusion ensures that no gap is generated when the two are connected, thereby avoiding liquid leakage and ensuring the sealing effect.

[0037] In one embodiment, the size of the connecting bottom plate 1 is the same as the size of the sealing top plate 6. The same size is to ensure that the two can be tightly fitted together to improve the sealing strength during use.

[0038] In one embodiment, a hole 10 is provided on the surface of the geomembrane body 5, and the size of the hole 10 is smaller than that of the connecting chassis 1. The setting of the hole 10 facilitates the insertion and use of the connecting chassis 1 and facilitates the subsequent pipe penetration through the membrane. The connecting chassis 1 can be selected to be set at the bottom of the geomembrane before the geomembrane is installed or inserted into the hole 10 at an angle. The size is set to ensure that the connecting chassis 1 and the sealing top plate 6 can fully cover the hole 10, and there is sufficient margin to seal the geomembrane around the hole 10.

[0039] Working principle: In actual use, personnel can open a hole 10 on the geomembrane body 5 that needs to be processed, then insert the connecting chassis 1 into the hole 10 at an angle and lay it flat, so that the connecting chassis 1 can fully fit the surface of the hole 10 on the surface of the geomembrane body 5, and then insert the sealing top plate 6 into the surface of the casing 4. At this time, personnel can rotate the sealing top plate 6 so that it rotates downward along the thread on the surface of the casing 4 until the sealing top plate 6 fits with the connecting chassis 1. At this time, the geomembrane will be squeezed into the sealing groove 2 by the sealing protrusion 8 to achieve the sealed connection operation between the geomembrane and the casing 4. Since the sealing groove 2 is provided with multiple group, so the geomembrane can be sealed multiple times to improve the overall use effect, and the sealing protrusion 8 and the sealing groove 2 are both provided with water-swelling waterstop strips 3, which can further improve the overall sealing effect and prevent sewage from seeping in. At the same time, after the connection bottom plate 1 is connected to the sealing top plate 6, the fastening rod 9 is inserted into the positioning hole 11 or welded inside the positioning hole 11, which can effectively prevent the two from falling off and ensure the sealing and fixing effect. Then the HDPE pipe can be inserted into the top of the sleeve 4, and the corresponding heat sealing operation is performed. At this time, the overall pipe-through-membrane structure is completed, and the overall device has the advantages of simple structure, convenient operation and good connection effect.

[0040] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A structure for a landfill HDPE pipe to pass through a geomembrane, comprising a connecting bottom plate (1) and a sealing top plate (6), characterized in that: A sleeve (4) is installed at the middle position of the top of the connecting chassis (1), a geomembrane body (5) is sleeved on the outer periphery of the sleeve (4), a sealing top plate (6) is threadedly connected to the top of the outer periphery of the sleeve (4), a plurality of sealing grooves (2) are opened on the top surface of the connecting chassis (1), a plurality of sealing protrusions (8) are arranged at the bottom of the sealing top plate (6), the surfaces of the sealing grooves (2) and the surfaces of the sealing protrusions (8) are wrapped with water-swellable water stop strips (3), and the top of the sleeve (4) is connected to the HDPE pipe body (7).

2. The structure of a landfill HDPE pipe passing through a geomembrane according to claim 1, characterized in that: The size of the sealing groove (2) is the same as the size of the sealing protrusion (8).

3. The structure of a landfill HDPE pipe passing through a geomembrane according to claim 1, characterized in that: A plurality of groups of positioning holes (11) are provided at the bottom end of the sleeve (4).

4. The structure of a landfill HDPE pipe passing through a geomembrane according to claim 1, characterized in that: The outer surface of the sealing top plate (6) is symmetrically mounted with fastening rods (9).

5. The structure of a landfill HDPE pipe passing through a geomembrane according to claim 4, characterized in that: The size of the fastening rod (9) is the same as the size of the positioning hole (11).

6. The structure of a landfill HDPE pipe passing through a geomembrane according to claim 1, characterized in that: The surface of the sleeve (4) is provided with a thread groove, and the inner surface of the sealing top plate (6) is also provided with a corresponding thread protrusion.

7. The structure of a landfill HDPE pipe passing through a geomembrane according to claim 1, characterized in that: The size of the connecting bottom plate (1) is the same as the size of the sealing top plate (6).

8. The structure of a landfill HDPE pipe passing through a geomembrane according to claim 1, characterized in that: A hole (10) is provided on the surface of the geomembrane body (5), and the size of the hole (10) is smaller than the size of the connecting chassis (1).

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