CN201014119Y - Double-insurance copper plastic composite pipe member - Google Patents

Double-insurance copper plastic composite pipe member Download PDF

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Publication number
CN201014119Y
CN201014119Y CNU2007200364342U CN200720036434U CN201014119Y CN 201014119 Y CN201014119 Y CN 201014119Y CN U2007200364342 U CNU2007200364342 U CN U2007200364342U CN 200720036434 U CN200720036434 U CN 200720036434U CN 201014119 Y CN201014119 Y CN 201014119Y
Authority
CN
China
Prior art keywords
copper
tube
polypropylene
liner
plastic composite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNU2007200364342U
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Chinese (zh)
Inventor
孙炳兴
Original Assignee
孙炳兴
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 孙炳兴 filed Critical 孙炳兴
Priority to CNU2007200364342U priority Critical patent/CN201014119Y/en
Application granted granted Critical
Publication of CN201014119Y publication Critical patent/CN201014119Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a dual-protective copper-plastic composite tube. On the basis of the tube joint composed of an outer PP-R polypropylene tube and an inner copper lining, an insertion opening is arranged at the connecting section between the PP-R polypropylene outer tube and the inner copper lining; the clearance of the insertion opening equals to the thickness of the wall of the copper-plastic water tube, and the inner copper lining at the connecting section extends out of the PP-R outer polypropylene tube properly; an annular groove is arranged at the outer wall at the front end of the inner copper lining and a rubber sealing ring is arranged in the annular groove. When the copper-plastic water tube is inserted into the insertion opening, the inner copper lining of the copper-plastic water tube forms the preliminary sealing outside the inner copper lining of the tube, and the rubber ring arranged between the inner copper lining of the pipe joint and the inner copper lining of the copper-plastic water tube forms the secondary sealing, then the dual-protective effect can be realized by connecting the outer polypropylene tube of the pipe joint with the outer polypropylene tube of the copper-plastic water tube by hot melting technology. The structure can effectively prevent the water from penetrating into the cavity between the two copper tubes and has the advantages of easy installation and good leakage-resistant effect, etc.

Description

Dual fail-safe Copper-plastic Composite Pipe spare
Technical field
The utility model relates to a kind of Copper-plastic Composite Pipe spare, and particularly a kind of copper liner jointing is provided with the pipe fitting of seal ring.
Background technique
Pipe fitting in the middle of the pipeline plays effects such as connection, turning, shunting in pipeline.The pipe fitting of Xiao Shouing is generally copper and polyacrylic composite pipe in the market, be to add copper liner in the polypropylene pipe fitting, the Placement of water pipe and joint mainly contains two kinds, the formula that promptly crashes and mouthing, to be the complex copper copper pipe mouth of moulding water pipe be connected with the mouth of pipe of the joint copper liner hot melt that crashes the what is called formula of crashing, though it is easy for installation, but two kinds of material heat-transfer coefficient differences, under the bigger situation of the temperature difference, the degrees of freedom of expanding with heat and contract with cold can be given and be stayed hidden danger in the future, mouthing be about to complex copper mould the outer field polypropylene plastics strip off of water pipe a bit of after, the naked copper pipe that complex copper is moulded water pipe inserts in the copper liner of pipe fitting again, and hot melt connects, though solved the problem of expanding with heat and contract with cold, install complicatedly, also need to join in addition special tool and take off and mould processing.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned deficiency of the prior art, to provide a kind of easy for installation, and prevents the dual fail-safe Copper-plastic Composite Pipe spare of seepage effectively.
Dual fail-safe Copper-plastic Composite Pipe spare of the present utility model, mainly include the body and the interface that constitute by PP-R polypropylene outer tube and copper liner, be provided with a socket at the interface position between body PP-R polypropylene outer tube and the copper liner, the gap of socket is the thickness that copper is moulded the water pipe tube wall, described jointing copper liner stretches out PP-R polypropylene outer tube 5~10mm, copper liner front end outer wall is provided with a circular groove, and rubber seal is housed in the circular groove.
When the copper that is made of PP-R polypropylene outer tube and copper liner is moulded water pipe and is connected, the mouth of pipe of copper being moulded water pipe inserts in the socket of pipe fitting, the copper liner that copper is moulded water pipe is inserted in outside the copper liner of pipe fitting, and the PP-R polypropylene outer tube that copper is moulded water pipe is handled through thermal fusion welding after by the PP-R polypropylene outer tube of pipe fitting parcel again and got final product.
Pipe fitting comprises straight joint, elbow connection, T junction and cross shaped joint.
Described circular groove is positioned at copper liner external port 5mm place.
The other end of interface also can embed a brass external thread wire mouth, and the degree of depth that embeds pipe fitting is 12~14mm.
Advantage of the present utility model is:
Novel dual fail-safe Copper-plastic Composite Pipe spare is composited by outer PP-R polypropylene of pipe fitting and copper pipe fitting liner, be provided with a socket at the interface position between body PP-R polypropylene outer tube and the copper liner, the gap of socket is the thickness that copper is moulded the water pipe tube wall, the copper that is made of PP-R polypropylene outer tube and copper liner is moulded the water pipe pipe fitting and is inserted between the PP-R polypropylene outer tube of body and the copper liner in the gap at interface position, the outer span external port 5mm place of copper liner is provided with a circular groove, rubber seal is installed in the circular groove, when copper is moulded water pipe insertion socket, copper is moulded the copper liner of water pipe outside the copper liner of body, the PP-R polypropylene outer tube that copper is moulded water pipe is wrapped up by the PP-R polypropylene outer tube of body, the copper liner that copper is moulded the copper liner parcel body of water pipe is preliminary sealing, the rubber seal that is contained in the circular groove is that hot melt connects behind the secondary seal, can reach the purpose of dual fail-safe, can prevent effectively sealing under 10 kilograms of pressure by the time leak in the interlayer of two copper pipes, jointing copper liner stretches out PP-R polypropylene outer tube 5~10mm, also play the effect of guiding, have advantages such as easy to connect and good leak-proof effect are installed.
Description of drawings
Fig. 1 is the structure cross-sectional schematic of the utility model straight joint;
Fig. 2 is the structure cross-sectional schematic of the utility model elbow connection;
Fig. 3 is the structure cross-sectional schematic of the utility model T junction;
Fig. 4 is the mounting structure cross-sectional schematic of the utility model T junction;
Fig. 5 is the structure cross-sectional schematic of the utility model cross shaped joint;
Fig. 6 is the mounting structure cross-sectional schematic of the utility model elbow connection.
Among the figure: 1, outer tube; 2, copper liner; 3, brass external thread wire mouth; 4, gap; 5, circular groove; 6, rubber seal; 7, outer tube; 8, copper liner.
Embodiment
Accompanying drawing is non-limiting to disclose a specific embodiment of the present utility model, and the utility model will be further described below in conjunction with accompanying drawing.
By Fig. 1 as seen to Fig. 6, a kind of dual fail-safe Copper-plastic Composite Pipe spare, be provided with a socket 4 between the PP-R polypropylene outer tube 1 of body and the copper liner 2 at the interface position, the gap of socket 4 is the thickness that copper is moulded the water pipe tube wall, when the copper that is made of PP-R polypropylene outer tube 7 and copper liner 8 is moulded water pipe and is inserted socket 4, copper is moulded the copper liner 8 of water pipe outside the copper liner 2 of body, copper is moulded the PP-R polypropylene outer tube 7 of water pipe by PP-R polypropylene outer tube 1 parcel of body, jointing copper liner 2 stretches out PP-R polypropylene outer tube 1 outer 5~10mm, copper liner 2 outer span external port 5mm places are provided with a circular groove 5, and rubber seal 6 is installed in the circular groove 5.
The other end of interface also can embed a brass external thread wire mouth 3, and the degree of depth that embeds pipe fitting is 12~14mm, and this brass external thread wire mouth 3 can directly be connected with water tap, valve.
In sum, pipe fitting comprises straight joint, elbow connection, T junction and cross shaped joint.
During installation, to mould water pipe by the copper that PP-R polypropylene outer tube 7 and copper liner 8 constitute and insert socket 4, copper is moulded the copper liner 8 of water pipe outside the copper liner 2 of body, copper is moulded the PP-R polypropylene outer tube 7 of water pipe by PP-R polypropylene outer tube 1 parcel of body, carries out the hot melt connecting treatment at the body jointing then.Have advantages such as easy to connect and good leak-proof effect are installed.

Claims (4)

1. dual fail-safe Copper-plastic Composite Pipe spare, comprise the pipe and the interface that constitute by PP-R polypropylene outer tube, copper liner, be provided with a socket at the interface position between body PP-R polypropylene outer tube and the copper liner, the gap of socket is the thickness that copper is moulded the water pipe tube wall, it is characterized in that: described jointing copper liner stretches out PP-R polypropylene outer tube 5~10mm, copper liner front end outer wall is provided with a circular groove, and rubber seal is housed in the circular groove.
2. dual fail-safe Copper-plastic Composite Pipe spare according to claim 1 is characterized in that: described pipe fitting comprises straight joint, elbow connection, T junction and cross shaped joint.
3. dual fail-safe Copper-plastic Composite Pipe spare according to claim 1 and 2 is characterized in that: described circular groove is positioned at copper liner external port 5mm place.
4. dual fail-safe Copper-plastic Composite Pipe spare according to claim 3 is characterized in that: the other end of described interface also can embed a brass external thread wire mouth, and the degree of depth that embeds pipe fitting is 12~14mm.
CNU2007200364342U 2007-03-23 2007-03-23 Double-insurance copper plastic composite pipe member Expired - Fee Related CN201014119Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007200364342U CN201014119Y (en) 2007-03-23 2007-03-23 Double-insurance copper plastic composite pipe member

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007200364342U CN201014119Y (en) 2007-03-23 2007-03-23 Double-insurance copper plastic composite pipe member

Publications (1)

Publication Number Publication Date
CN201014119Y true CN201014119Y (en) 2008-01-30

Family

ID=39025913

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU2007200364342U Expired - Fee Related CN201014119Y (en) 2007-03-23 2007-03-23 Double-insurance copper plastic composite pipe member

Country Status (1)

Country Link
CN (1) CN201014119Y (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359342A (en) * 2011-07-26 2012-02-22 湖南省金为型材有限公司 Two-way joint for connecting pipe

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102359342A (en) * 2011-07-26 2012-02-22 湖南省金为型材有限公司 Two-way joint for connecting pipe
CN102359342B (en) * 2011-07-26 2013-04-24 湖南省金为型材有限公司 Two-way joint for connecting pipe

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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080130

C17 Cessation of patent right