CN203286195U - Fully anti-corrosion steel-plastic adaptation connecting structure - Google Patents

Fully anti-corrosion steel-plastic adaptation connecting structure Download PDF

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Publication number
CN203286195U
CN203286195U CN2013203192146U CN201320319214U CN203286195U CN 203286195 U CN203286195 U CN 203286195U CN 2013203192146 U CN2013203192146 U CN 2013203192146U CN 201320319214 U CN201320319214 U CN 201320319214U CN 203286195 U CN203286195 U CN 203286195U
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China
Prior art keywords
steel
connecting sleeve
joint
linkage structure
oblique shape
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CN2013203192146U
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Chinese (zh)
Inventor
马国光
袁宗明
张成宪
邓文松
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CHENGDU SHANHAI HEAT SHRINKABLE PRODUCTS Co Ltd
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CHENGDU SHANHAI HEAT SHRINKABLE PRODUCTS Co Ltd
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Priority to CN2013203192146U priority Critical patent/CN203286195U/en
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Abstract

The utility model provides a fully anti-corrosion steel-plastic adaptation connecting structure. The fully anti-corrosion steel-plastic adaptation connecting structure comprises a steel guide pipe connector and a PE pipe connector, and further comprises a connecting sleeve matched with the PE pipe connector in size, wherein the PE pipe connector is connected inside the connecting sleeve in an extrusion interference mode, the steel guide pipe connector is connected with the inner side of the PE pipe connector in an extrusion interference mode, and the inner wall of the connecting sleeve and the outer wall of the steel guide pipe connector are respectively provided with an anti-falling structure. Compared with the prior art, the fully anti-corrosion steel-plastic adaptation connecting structure has the advantages of achieving the anti-corrosion effect and having good creep resistance, anti-skidding performance and anti-falling performance, is long in service life, and is high in safety and firmness.

Description

A kind of linkage structure of full antiseptic steel-plastic conversion
Technical field
The utility model relates to a kind of linkage structure, particularly a kind of linkage structure of full antiseptic steel-plastic conversion.
Background technique
The full anticorrosive steel-plastic conversion joint of the buried gaseous-pressure pipeline in cities and towns in prior art, be called for short: full anticorrosive steel-plastic conversion joint.In engineering in the past, steel pipe and PE pipe joint adopts steel-plastic flange to carry out transition with steel flanges to be connected usually., through application and the check of practice, find that there is following drawback in steel-plastic flange with being connected of steel flanges: 1) flange and the anticorrosion difficulty of sieve bolt, corrosion herein is serious, easily produces herein gas leak phenomenon; 2) because the tubing material is different herein, coefficient of thermal expansion differences is larger, easily produces the concentrated Pipeline damage that causes of stress, produces the gas leakage phenomenon.
The model utility content
The utility model proposes a kind of linkage structure of full antiseptic steel-plastic conversion, solve deficiency of the prior art, can realize the anticorrosion of linkage structure, had advantages of again good creep resistant and anti-skidding, Drop-proof, and long service life, Security and steadiness are high.
The technical solution of the utility model is achieved in that a kind of linkage structure of full antiseptic steel-plastic conversion, comprise steel conduit joint and PE pipe joint, also comprise the connecting sleeve that size and PE pipe joint are complementary, described PE pipe joint is connected in connecting sleeve by the extruding interference, and described steel conduit joint is connected in the inboard of PE pipe joint by the extruding interference; The outer side wall of the madial wall of described connecting sleeve and steel conduit joint is equipped with anti-drop structure.
Further, described anti-drop structure is for being arranged at respectively the oblique shape sawtooth on connecting sleeve madial wall and steel conduit joint outer side wall.
Further, the equal oblique direction away from the PE pipe joint of described oblique shape sawtooth.
Further, the angle of the long hypotenuse of described oblique shape sawtooth and Vertical direction is 70 degree.
Further, the long hypotenuse of the oblique shape sawtooth on described connecting sleeve madial wall and the angle of Vertical direction are 45 degree, and the long hypotenuse of the oblique shape sawtooth on described steel conduit joint outer side wall and the angle of Vertical direction are 70 degree.
Further, the quantity of the oblique shape sawtooth on described connecting sleeve madial wall and steel conduit joint outer side wall is 3-20, and tiltedly the quantity of shape sawtooth generally can be set according to the size of caliber.
Further, the quantity of the oblique shape sawtooth on described connecting sleeve madial wall and steel conduit joint outer side wall is 8.
Further, described connecting sleeve is the radiant crosslinked polyethylene heat shrinkable cover.
Compared with prior art, the beneficial effects of the utility model are:
(1) the utility model is according to " GB26255.1-2010 and the GB26255.2-2010 combustion gas mechanical pipe fitting of polyethylene pipe system " standard and the physical features such as polyethylene PE pipe plasticity, extensibility and compressibility, and adopting advanced cold-extrusion technology that seamless steel conduit is pressed into by in polyethylene PE pipe " connecting sleeve " used with being connected two pipes, such linkage structure can be born under pressure condition more than working pressure 2-3 times and do not revealed in the gas pipeline that seals;
(2) the utility model is completed the conversion connection under cold-stamped technique, and at the madial wall of connecting sleeve and the outer side wall of steel conduit joint, being equipped with anti-drop structure, the joint that such Placement makes steel mould the conversion connection has advantages of good creep resistant and anti-skidding, Drop-proof;
(3) because connecting sleeve of the present utility model adopts the radiant crosslinked polyethylene heat shrinkable cover, thereby realize the antiseptic property of the full anticorrosive steel-plastic conversion joint after buried, extended working life of full anticorrosive steel-plastic conversion joint and safety, steadiness.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, in below describing embodiment, the accompanying drawing of required use is briefly described, apparently, accompanying drawing in the following describes is only one of them embodiment of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the utility model embodiment's structural representation;
Fig. 2 is the partial enlarged drawing of I section in Fig. 1.
In figure: 1, PE pipe joint; 2, steel conduit joint; 3, connecting sleeve; 4, oblique shape sawtooth.
Embodiment
Below the technological scheme in the utility model is clearly and completely described, obviously, described embodiment is only several embodiments wherein of the present utility model, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment who obtains, and all belong to the scope of the utility model protection.
As depicted in figs. 1 and 2:
A kind of linkage structure of full antiseptic steel-plastic conversion, comprise steel conduit joint 2 and PE pipe joint 1, also comprises the connecting sleeve 3 that size and PE pipe joint 1 are complementary, and described connecting sleeve 3 is the radiant crosslinked polyethylene heat shrinkable cover.Described PE pipe joint 1 is connected in connecting sleeve 3 by the extruding interference, and described steel conduit joint 2 is connected in the inboard of PE pipe joint 1 by the extruding interference; Be equipped with 3-20 tiltedly shape sawtooth 4 on the outer side wall of the madial wall of described connecting sleeve 3 and steel conduit joint 2.In the present embodiment, the long hypotenuse of the oblique shape sawtooth 4 on described connecting sleeve 3 madial walls and the angle of Vertical direction are 70 degree, as the b angle in Fig. 2, the long hypotenuse of the oblique shape sawtooth 4 on described steel conduit joint 2 outer side walls and the angle of Vertical direction are 70 degree, as a angle in Fig. 2; On the outer side wall of the madial wall of described connecting sleeve 3 and steel conduit joint 2, the quantity of oblique shape sawtooth 4 is 8.
Oblique shape sawtooth 4 structures in the utility model also can be called " horse mouth tooth " structure.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims (8)

1. the linkage structure of a full antiseptic steel-plastic conversion, comprise steel conduit joint (2) and PE pipe joint (1), it is characterized in that: also comprise the connecting sleeve (3) that size and PE pipe joint (1) are complementary, described PE pipe joint (1) is connected in connecting sleeve (3) by the extruding interference, and described steel conduit joint (2) is connected in the inboard of PE pipe joint (1) by the extruding interference; The outer side wall of the madial wall of described connecting sleeve (3) and steel conduit joint (2) is equipped with anti-drop structure.
2. the linkage structure of a kind of full antiseptic steel-plastic conversion according to claim 1, it is characterized in that: described anti-drop structure is for being arranged at respectively the oblique shape sawtooth (4) on connecting sleeve (3) madial wall and steel conduit joint (2) outer side wall.
3. the linkage structure of a kind of full antiseptic steel-plastic conversion according to claim 2, it is characterized in that: described oblique shape sawtooth (4) is oblique direction away from PE pipe joint (1) all.
4. the linkage structure of a kind of full antiseptic steel-plastic conversion according to claim 3 is characterized in that: the long hypotenuse of described oblique shape sawtooth (4) and the angle of Vertical direction are 70 to spend.
5. the linkage structure of a kind of full antiseptic steel-plastic conversion according to claim 4, it is characterized in that: the long hypotenuse of the oblique shape sawtooth (4) on described connecting sleeve (3) madial wall and the angle of Vertical direction are 70 degree, and the long hypotenuse of the oblique shape sawtooth (4) on described steel conduit joint (2) outer side wall and the angle of Vertical direction are 70 degree.
6. the linkage structure of a kind of full antiseptic steel-plastic conversion according to claim 5, it is characterized in that: the quantity of the oblique shape sawtooth (4) on described connecting sleeve (3) madial wall and steel conduit joint (2) outer side wall is 3-20.
7. the linkage structure of a kind of full antiseptic steel-plastic conversion according to claim 6, it is characterized in that: the quantity of the oblique shape sawtooth (4) on described connecting sleeve (3) madial wall and steel conduit joint (2) outer side wall is 8.
8. the linkage structure of the described a kind of full antiseptic steel-plastic conversion of any one according to claim 1-7, it is characterized in that: described connecting sleeve (3) is the radiant crosslinked polyethylene heat shrinkable cover.
CN2013203192146U 2013-06-04 2013-06-04 Fully anti-corrosion steel-plastic adaptation connecting structure Active CN203286195U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013203192146U CN203286195U (en) 2013-06-04 2013-06-04 Fully anti-corrosion steel-plastic adaptation connecting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013203192146U CN203286195U (en) 2013-06-04 2013-06-04 Fully anti-corrosion steel-plastic adaptation connecting structure

Publications (1)

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CN203286195U true CN203286195U (en) 2013-11-13

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105114744A (en) * 2015-09-13 2015-12-02 苏州市燃气设备阀门制造有限公司 Steel-plastic conversion connecting structure
CN105276318A (en) * 2015-11-09 2016-01-27 成都长江热缩材料有限公司 Firm connecting pipe sleeve based on heat sealing layer
JP2020101250A (en) * 2018-12-25 2020-07-02 株式会社クボタケミックス Conversion joint

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105114744A (en) * 2015-09-13 2015-12-02 苏州市燃气设备阀门制造有限公司 Steel-plastic conversion connecting structure
CN105276318A (en) * 2015-11-09 2016-01-27 成都长江热缩材料有限公司 Firm connecting pipe sleeve based on heat sealing layer
JP2020101250A (en) * 2018-12-25 2020-07-02 株式会社クボタケミックス Conversion joint

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