CN208107376U - A kind of connection structure of water drainage plastics pipe and inspection shaft - Google Patents

A kind of connection structure of water drainage plastics pipe and inspection shaft Download PDF

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Publication number
CN208107376U
CN208107376U CN201820430313.4U CN201820430313U CN208107376U CN 208107376 U CN208107376 U CN 208107376U CN 201820430313 U CN201820430313 U CN 201820430313U CN 208107376 U CN208107376 U CN 208107376U
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Prior art keywords
short tube
inspection shaft
steel
flange
ring
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CN201820430313.4U
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Chinese (zh)
Inventor
黄鑫
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Beijing Shougang International Engineering Technology Co Ltd
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Beijing Shougang International Engineering Technology Co Ltd
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Abstract

A kind of connection structure of water drainage plastics pipe and inspection shaft, belongs to municipal works technical field of drainage.Including water-proof wing-ring (2), steel short tube (3), ring flange (4), slow expanded rubber item (5), PE short tube (6), concrete protective set (7);Inspection shaft borehole wall interface pre-buried steel short tube (3), steel short tube (3) one end are welded with flange (4), and steel short tube (3) outer wall is welded with water-proof wing-ring (2);PE short tube (6) is connect with steel short tube (3) flange end;The outer wall circular cutting of PE short tube (6), the interior annular of placing of slot delay swollen rubber strip (5);PE short tube (6) other end and PE drainage pipeline hot-melt adhesive paste;Concrete protective casing (7) will be including the duct wraps of junction.The advantage is that overall structure is simple, compact to design, easy to use, waterproof seal is good, ring stiffness is high, non-deformability is strong, quality stability is good, long service life.

Description

A kind of connection structure of water drainage plastics pipe and inspection shaft
Technical field
The utility model belongs to municipal works technical field of drainage, more particularly to a kind of water drainage plastics pipe and inspection shaft Connection structure.It is related to polyethylene (PE) drainpipe and inspection shaft is tightly connected mode.
Background technique
With the popularization and application of new material, more and more sewerage system application plastic pipes, with it is light-weight, The advantages that critical external compressive resistance, corrosion-resistant, low temperature resistant and wearability are good, easy for installation, the service life is long.And gradually replace cast iron pipe and galvanized steel The traditional piping materials such as pipe become mainstream and use tubing.
But in practical implementation, plastic drainage pipeline and inspection shaft interface are seeped since crack will appear sewage The phenomenon that leakage, not only influences surrounding soil ground, or even pollutes to soil.It traces it to its cause, on the one hand, plastic drainage pipeline With inspection shaft junction since stress is concentrated, under load effect, pipeline and well bore inevitably generate inhomogeneous deformation, just Property well bore generate lesser deformation, and pipe deforming can be larger, and heavy-caliber plastic pipe is particularly acute;On the other hand, plastic conduit With inspection shaft connection type mainly in interface using cement mortar, sealing ring closure or water string.Use these materials Block, interface essence is the combination of concrete and plastic material, but due to the linear expansion coefficient gap of concrete and plastics compared with Greatly, above-mentioned sealing means often because caused by uneven settlement of foundation and pipe deforming interface there is crack or seal failure.Well Outdoor underground water pours in well entrainment of the soil body and silt particle of pipeline surrounding, flows away with sewage, if things go on like this causes vicious circle, The sinking for eventually leading to above ground structure and road surface destroys.
Utility model content
The purpose of this utility model is to provide the connection structures of a kind of water drainage plastics pipe and inspection shaft, solve polyethylene (PE) there is the problems such as causing sewage cross contamination behind crack in drainage pipeline and inspection shaft interface;Interface can effectively be enhanced Leakproofness realizes rigidity and rigid connection.Meanwhile interface plastic drainage pipeline intensity is enhanced, reduce pipe deforming.Most Guarantee the airtightness of inspection shaft eventually.Increase the service life of underground pipe network.
The utility model includes well room 1, water-proof wing-ring 2, steel short tube (band steel flange and wing ring) 3, ring flange 4, slow expansion Rubber strip 5, PE short tube (band steel flange) 6, concrete protective set 7.Inspection shaft borehole wall interface pre-buried steel short tube 3, steel short tube 3 one End is welded with flange 4, and 3 outer wall of steel short tube is welded with slow expanded rubber item 5.
Flanged (FLGD) PE short tube 6 is connect with 3 flange end of steel short tube.
The outer wall circular cutting of PE short tube 6, the interior annular of placing of slot delay swollen rubber strip.
6 other end of PE short tube and PE drainage pipeline hot-melt adhesive paste.
Increase concrete protective and cover 7 (length L >=300mm), including the duct wraps of junction.
Beneficial effect
For the utility model technology compared with routine techniques, overall structure is simple, compact to design, easy to use, anti-watertight Envelope property is good, ring stiffness is high, non-deformability is strong, quality stability is good, long service life.Specifically:
(1) drainage pipeline and inspection shaft junction are substituted using steel short tube, the linear expansion coefficient of steel pipe and concrete It is approximately uniform, there is good cohesive force, ensure that the leakproofness for checking well room.
(2) steel short tube and PE pipeline use flanged joint, ensure that the leakproofness of pipeline.
(3) with addition of wing rings, delay the waterproof measures such as expanded rubber item, multi-pronged, are further ensured that the close of interface Feng Xing.
(4) package for finally using concrete short tube, increases the rigidity of interface pipeline, protection interface is not by settlement of foundation It influences.
Detailed description of the invention
Fig. 1 is the utility model plan view.
Fig. 2 is the A-A sectional view of the utility model Fig. 1.
In figure, well room 1, water-proof wing-ring 2, steel short tube (band steel flange and wing ring) 3, ring flange 4, slow expanded rubber item 5, PE Short tube (band steel flange) 6, concrete protective set 7.
Specific embodiment
The utility model includes well room 1, water-proof wing-ring 2, steel short tube (band steel flange and wing ring) 3, ring flange 4, slow expansion Rubber strip 5, PE short tube (band steel flange) 6, concrete protective set 7.
Inspection shaft uses armored concrete form, and when formwork construction considers pipe joint together.
Steel short tube (320mm) be it is prefabricated, specification is from DN300~DN600mm, and one end has ring flange, and outside steel pipe Wall is welded with water-proof wing-ring, and interior anti-corrosion uses epoxy coating anti-corrosion, and steel short tube pours simultaneously with the inspection shaft borehole wall.
Strip short tube flange end is connect with flanged (FLGD) PE short tube, and wherein flange 4 is steel same specification flange.
Increase concrete protective and cover 7 (length L >=300mm), including the duct wraps of junction.
The deep annular cutting of 2mm is done in 6 outer wall of PE short tube, for placing the slow expanded rubber item of annular, slotting position is away from mixed At solidifying soil encapsulating end 70mm.
Other embodiments are consistent with routine inspection well way.

Claims (4)

1. a kind of connection structure of water drainage plastics pipe and inspection shaft, which is characterized in that including water-proof wing-ring (2), steel short tube (3), Ring flange (4), slow expanded rubber item (5), PE short tube (6), concrete protective set (7);Inspection shaft borehole wall interface pre-buried steel is short It manages (3), steel short tube (3) one end is welded with flange (4), and steel short tube (3) outer wall is welded with water-proof wing-ring (2);PE short tube (6) and steel short tube (3) flange end connects;
The outer wall circular cutting of PE short tube (6), slot is interior to place slow expanded rubber item (5);
PE short tube (6) other end and PE drainage pipeline hot-melt adhesive paste;Concrete protective set (7) will be including the duct wraps of junction.
2. the connection structure of water drainage plastics pipe and inspection shaft according to claim 1, which is characterized in that concrete protective set (7) length L >=300mm.
3. the connection structure of water drainage plastics pipe and inspection shaft according to claim 1, which is characterized in that flange (4) is steel Preparation method is blue.
4. the connection structure of water drainage plastics pipe and inspection shaft according to claim 1, which is characterized in that in PE short tube (6) Outer wall does the deep annular cutting of 2mm, and slotting position is at away from concrete pack end 70mm.
CN201820430313.4U 2018-03-28 2018-03-28 A kind of connection structure of water drainage plastics pipe and inspection shaft Active CN208107376U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820430313.4U CN208107376U (en) 2018-03-28 2018-03-28 A kind of connection structure of water drainage plastics pipe and inspection shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820430313.4U CN208107376U (en) 2018-03-28 2018-03-28 A kind of connection structure of water drainage plastics pipe and inspection shaft

Publications (1)

Publication Number Publication Date
CN208107376U true CN208107376U (en) 2018-11-16

Family

ID=64123279

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820430313.4U Active CN208107376U (en) 2018-03-28 2018-03-28 A kind of connection structure of water drainage plastics pipe and inspection shaft

Country Status (1)

Country Link
CN (1) CN208107376U (en)

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