CN203686413U - Quick connecting structure of double-flat-wall steel-plastic composite pipes - Google Patents

Quick connecting structure of double-flat-wall steel-plastic composite pipes Download PDF

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Publication number
CN203686413U
CN203686413U CN201320823433.8U CN201320823433U CN203686413U CN 203686413 U CN203686413 U CN 203686413U CN 201320823433 U CN201320823433 U CN 201320823433U CN 203686413 U CN203686413 U CN 203686413U
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China
Prior art keywords
plastic composite
steel
double
wall steel
joint structure
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Active
Application number
CN201320823433.8U
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Chinese (zh)
Inventor
王振华
龚磊
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Heshan Liansu Industrial Development Co Ltd
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Heshan Liansu Industrial Development Co Ltd
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Priority to CN201320823433.8U priority Critical patent/CN203686413U/en
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Abstract

The utility model discloses a quick connecting structure of double-flat-wall steel-plastic composite pipes. The structure comprises a diameter-expansion connecting opening part welded with a first steel-plastic composite pipe and a sealing part, wherein a second steel-plastic composite pipe is sleeved with the sealing part; the diameter-expansion end of the diameter-expansion connecting opening part is cooperated with and in contact with the sealing part. The structure disclosed by the utility model can play the function of quick installation during on-site installation of a pipe and is good in sealing performance and the deformation of the pipe can be avoided.

Description

A kind of fast joint structure of Double-flat wall steel plastic composite
Technical field
The utility model relates to the fast joint structure of Double-flat wall steel plastic composite, belongs to pipeline connection technology field.
Background technique
Steel-plastic composite pipe, be a kind of novel composite pipe tubing, product is take seamless steel pipe, welded steel pipe as base tube, and interior finishing high adhesion force, polyethylene powders anticorrosion, food-grade sanitary type are coated with or epoxy coating, there is bearing capacity strong, the advantages such as good corrosion resistance.At present, it is in various engineerings, and the fields such as agro-industry are widely used.
For the connection of composite metal plastic pipe, particularly construction and installation large-diameter steel-plastic composite pipe road on construction ground at the scene, the quality of efficiency and installation is extremely important.The installation of prior art steel-plastic composite pipe is mainly to utilize sleeve member to connect, in connection procedure, two tubing abutting joints are entered to sleeve, should guarantee coaxality, more difficult in operation like this, and to repeat twice of identical operation, not only increase the difficulty of installing, and reduced efficiency aspect installation, in addition, likely cause pipe deforming.
Model utility content
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, provides that a kind of pipeline is installed fast, good seal performance and avoid the linkage structure of pipe deforming.
The utility model adopts following proposal:
A fast joint structure for Double-flat wall steel plastic composite, comprises and the hole enlargement mouthpiece and the Sealing that is enclosed within the second steel-plastic composite pipe of the first steel-plastic composite pipe welding, described hole enlargement mouthpiece flared end coordinates and contacts with Sealing.
The port of the connecting end of described hole enlargement mouthpiece and the first steel-plastic composite pipe coincide, and flared end is horn-like, and the external diameter of its internal diameter and the second steel-plastic composite pipe coincide.
Described welding is that the mode of welding by winding with hole enlargement mouthpiece junction point outer surface at the first steel-plastic composite pipe forms one deck welded plate and is connected.
Described welded plate is PE welding plate.
Described Sealing is seal ring.
The side end face of the side end face of described seal ring and the second steel-plastic composite pipe coincide, and outer surface is provided with an oblique angle projection.
Between described seal ring exterior edge face and oblique angle projection, be provided with an elasticity linkage section.
Described hole enlargement mouthpiece flared end coordinates for elasticity interference fit contacts with seal ring, and the two-port linkage section close contact of seal ring and hole enlargement mouthpiece.
Specifically, hole enlargement mouthpiece is to horn-like, can contributes to enter with the tubing of seal ring; Seal ring is provided with oblique angle projection, can be conducive to insert the fixing of tubing after hole enlargement mouthpiece, and prevent that tubing from pouring out, in addition, between seal ring outer surface and oblique angle projection, be provided with an elasticity linkage section and can alleviate oblique angle projection in tubing installation process and pack the resistance in hole enlargement mouthpiece flared end into, reduce friction.
Specifically, utilize this linkage structure in advance tubing and hole enlargement mouthpiece to be welded as a whole, can reduce so field erected operation, also can guarantee the coaxality with another tubing abutting joint.Meanwhile, utilize and be enclosed within on tubing with the seal ring of oblique angle projection, then can improve with hole enlargement mouthpiece flared end interference fit the sealability that pipeline is connected.In addition, utilize this linkage structure can avoid tubing extrusion.
The beneficial effects of the utility model:
1. in advance a tubing and hole enlargement mouthpiece are welded as a whole, can reduce on-the-spot installation procedure, install fast.
2. adopt tubing and the hole enlargement mouthpiece flared end interference fit with oblique angle projection seal ring, good seal performance.
3. avoid pipeline extrusion.
Accompanying drawing explanation
Fig. 1: mounting structure schematic diagram of the present utility model;
Fig. 2: the utility model integrated connection erection drawing;
Fig. 3: the utility model joint partial enlarged drawing I.
In figure: 1. the first steel-plastic composite pipe; 2. the second steel-plastic composite pipe; 3. hole enlargement mouthpiece; 4. seal ring; 5.PE welded plate.
Embodiment
By reference to the accompanying drawings embodiment of the present utility model is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3, seal ring 4 is enclosed within on the second steel-plastic composite pipe 2 one ports, hole enlargement mouthpiece 3 and the first steel-plastic composite pipe 1 connect as one by the PE welded plate 5 being welded into, finally drawing in device by connection device has the second steel-plastic composite pipe 2 of seal ring 4 to pack the flared end of hole enlargement mouthpiece 3 in cover, make seal ring 4 press the flared section of hole enlargement mouthpiece, make the oblique angle projection on seal ring 4 insert flared end simultaneously, play fixation, prevent that tubing from falling back, so just complete the integrated connection of tubing.
The utility model is simple in structure, in tubing welding and installation process, can carry out supporting enlarging and seal ring making according to tubing different size, adapts to on-the-spot installation of tubing of all size.

Claims (8)

1. a fast joint structure for Double-flat wall steel plastic composite, is characterized in that, comprises and the hole enlargement mouthpiece and the Sealing that is enclosed within the second steel-plastic composite pipe of the first steel-plastic composite pipe welding, and described hole enlargement mouthpiece flared end coordinates and contacts with Sealing.
2. the fast joint structure of a kind of Double-flat wall steel plastic composite according to claim 1, it is characterized in that, the port of the connecting end of described hole enlargement mouthpiece and the first steel-plastic composite pipe coincide, and flared end is horn-like, and the external diameter of its internal diameter and the second steel-plastic composite pipe coincide.
3. the fast joint structure of Double-flat wall steel plastic composite according to claim 1, is characterized in that, described welding is to be wound around welding one deck welded plate at the junction point outer surface of the first steel-plastic composite pipe and hole enlargement mouthpiece connecting end.
4. the fast joint structure of Double-flat wall steel plastic composite according to claim 3, is characterized in that, described welded plate is PE welding plate.
5. the fast joint structure of Double-flat wall steel plastic composite according to claim 1, is characterized in that, described Sealing is seal ring.
6. the fast joint structure of Double-flat wall steel plastic composite according to claim 5, is characterized in that, the side end face of the side end face of described seal ring and the second steel-plastic composite pipe coincide, and outer surface is provided with an oblique angle projection.
7. the fast joint structure of Double-flat wall steel plastic composite according to claim 6, is characterized in that, is provided with an elasticity linkage section between described seal ring outer surface and oblique angle projection.
8. the fast joint structure of Double-flat wall steel plastic composite according to claim 1, is characterized in that, described hole enlargement mouthpiece flared end coordinates and contacts as the contact of elasticity interference fit with Sealing.
CN201320823433.8U 2013-12-16 2013-12-16 Quick connecting structure of double-flat-wall steel-plastic composite pipes Active CN203686413U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320823433.8U CN203686413U (en) 2013-12-16 2013-12-16 Quick connecting structure of double-flat-wall steel-plastic composite pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320823433.8U CN203686413U (en) 2013-12-16 2013-12-16 Quick connecting structure of double-flat-wall steel-plastic composite pipes

Publications (1)

Publication Number Publication Date
CN203686413U true CN203686413U (en) 2014-07-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320823433.8U Active CN203686413U (en) 2013-12-16 2013-12-16 Quick connecting structure of double-flat-wall steel-plastic composite pipes

Country Status (1)

Country Link
CN (1) CN203686413U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104772398A (en) * 2015-03-27 2015-07-15 鹤山联塑实业发展有限公司 Method for additionally installing stainless steel bush on steel-plastic composite pipe

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104772398A (en) * 2015-03-27 2015-07-15 鹤山联塑实业发展有限公司 Method for additionally installing stainless steel bush on steel-plastic composite pipe

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