CN207178964U - A kind of connecting pipe double containment attachment structure - Google Patents
A kind of connecting pipe double containment attachment structure Download PDFInfo
- Publication number
- CN207178964U CN207178964U CN201720939770.1U CN201720939770U CN207178964U CN 207178964 U CN207178964 U CN 207178964U CN 201720939770 U CN201720939770 U CN 201720939770U CN 207178964 U CN207178964 U CN 207178964U
- Authority
- CN
- China
- Prior art keywords
- pipe fitting
- attachment structure
- seal
- port
- double containment
- 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.)
- Active
Links
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The utility model discloses a kind of connecting pipe double containment attachment structure, connecting pipe double containment attachment structure includes the first body, and pipe fitting double containment attachment structure includes：Pipe fitting socket section, the first binding post and first seal, one end of pipe fitting socket section is first port, and the other end is second port, and pipe fitting socket section inwall is sequentially provided with the first electrical heating area and first seal installing zone along first port to second port direction；First electrical heating area is provided with the first electric heating element, and first binding post one end is stretched into the first electrical heating area along on the outside of pipe fitting socket section and contacted with the first electric heating element；First body is fitted close from first port or second port insertion pipe fitting socket section and with the first electrical heating area and second seal installing zone.The utility model provides a kind of connecting pipe double containment attachment structure, is firmly connected body with pipe fitting by double sealing structure, improves the fastness and security of pipe fitting connection connection.
Description
Technical field
Tubing technical field is the utility model is related to, more particularly to a kind of connecting pipe double containment connection knot
Structure.
Background technology
At present, conveying machinery industry category of piping materials includes PPR pipe, pvc pipe, and UPVC is managed, copper pipe, steel pipe, and multiple tube is zinc-plated
The species such as pipe, suitable for industries such as architectural engineering, power plant, chemical plant, have a wide range of application.
But existing pipe fitting exists and installs between pipe fitting joint not firm, cause rear tubular member is installed easy in the course of the work
There is disconnection, axial displacement, the problem such as water resistant thrust is poor, pressure-bearing is low；And existing pipe fitting joint structure is easily by artificial, ring
It border, can hold into the influence such as depth as shallow, numerous and diverse working procedure, be easily caused pipe fitting local fracture, have a strong impact on the delivery safety of pipe fitting,
Even endanger public security.
Therefore, how to provide a kind of pipe fitting for making pipe joint be connected firmly is asking for those skilled in the art's urgent need to resolve
Topic.
Utility model content
In view of this, the utility model provides a kind of connecting pipe double sealing structure, by double sealing structure by body
Between firmly connect, improve fastness and security that body is connected with body.
To achieve these goals, the utility model adopts the following technical scheme that：
A kind of connecting pipe double containment attachment structure, connecting pipe double containment attachment structure include the first body, and pipe fitting is double
Hermetical connecting structure includes：Pipe fitting socket section, the first binding post and first seal, one end of pipe fitting socket section is first end
Mouthful, the other end is second port, and pipe fitting socket section inwall is sequentially provided with the first electrical heating along first port to second port direction
Area and first seal installing zone；First electrical heating area is provided with the first electric heating element, and first binding post one end is along pipe fitting socket section
Outside is stretched into the first electrical heating area and contacted with the first electric heating element；First body inserts pipe fitting from first port or second port
Socket section is simultaneously fitted close with the first electrical heating area and second seal installing zone.
Preferably, seal installing zone sets the first seal groove, and first seal is arranged in the first seal groove；First pipe
For body out of first port insertion pipe fitting socket section, the outer wall of the first body and the first electric heating element and first seal inwall are close
Coordinate.
Preferably, pipe fitting socket section also includes bellmouth backstop, and bellmouth backstop is located at second port and installed with first seal
Between area, bellmouth backstop has the first stop surface of at least one close first seal installing zone side, the first stop surface with
First seal groove has spacing a, and the first body abuts out of first port grafting pipe fitting socket section and with the first stop surface.
Preferably, the distance between first port end face and the first stop surface are b.
Preferably, electric heating element uses Electric thermal smelting belt.
Preferably, a kind of connecting pipe double containment attachment structure also includes the second body, the second body and pipe fitting socket section
Second port at one or split connection.
Preferably, a kind of connecting pipe double containment attachment structure also includes the second body, and pipe fitting double sealing structure also includes
Second binding post and second seal, pipe fitting socket section inwall are sequentially provided with the second electricity along bellmouth backstop to second port direction and added
Hot-zone and first seal installing zone, the second electrical heating area are provided with electric heating element, and second binding post one end is along outside pipe fitting socket section
Side is stretched into the second electrical heating area and contacted with the second electric heating element, and second seal installing zone sets the second seal groove, and second is close
Sealing is arranged in the second seal groove；Second body out of second port insertion pipe fitting socket section and with the second electrical heating area and the
Two seal installing zones are fitted close；
Bellmouth backstop has the second stop surface close to second seal installing zone side, and second body one end is stopped with second
Block face abuts.
Preferably, the second stop surface and the second seal groove have spacing a；Between second port end face and the second stop surface
Distance is b.
Preferably, pipe fitting socket section is corresponded to one on the outer wall between first seal installing zone and second seal installing zone
Body is provided with connection short tube, and connection short tube inner chamber connects with pipe fitting socket section inner chamber.
Preferably, connection double containment pipe fitting joint structure includes plain edition pipe fitting double containment attachment structure and enhanced pipe fitting
Double containment attachment structure；
Plain edition pipe fitting double containment attachment structure uses high-density polyethylene layer；
Enhanced pipe fitting double containment attachment structure includes from outside to inside：Outer polyethylene layers, composite bed resin bed, high intensity
Layers of reinforcement and inner side polyethylene layer.
Understand that compared with prior art, the utility model, which discloses, provides a kind of connecting tube via above-mentioned technical scheme
Part double containment attachment structure, first, by the setting of electrical heating area and seal installing zone, double-layer seal connects pipe fitting double containment
It is more firm to be connected between binding structure, and wherein electric heating element can be integral by body and pipe fitting welding, overcomes body and pipe fitting
Interface easily disconnects, the easy axial displacement of seal, the deficiency that water resistant thrust is poor, pressure-bearing is low, ensure that between body and pipe fitting
The security of connection.
Secondly, a kind of connecting pipe double containment attachment structure provided by the utility model can be installed directly socket joint, in being not required to
Between short tube transition, it is easy for installation；And then reduce body interface quantity, numerous and diverse construction process is simplified, and then reduce and apply
The influence of human factor, ensure that construction quality in work.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is embodiment of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to the accompanying drawing of offer.
Fig. 1 accompanying drawings are a kind of half sectional view of connecting pipe double containment attachment structure provided by the utility model；
Fig. 2 accompanying drawings are double for a kind of being integrally set up in parallel for connecting pipe double containment attachment structure provided by the utility model
Sealing structure half sectional view.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of connecting pipe double sealing structure, by double sealing structure by between body
Firmly connection, improves fastness and security that body is connected with body.
A kind of connecting pipe double containment attachment structure provided by the utility model, referring to attached Fig. 1 and 2, connecting pipe double density
Envelope attachment structure includes the first body, and pipe fitting double containment attachment structure includes：Pipe fitting socket section 2, the first binding post 5 and first are close
Sealing 3, one end of pipe fitting socket section 2 are first port 21, and the other end is second port, and the inwall of pipe fitting socket section 2 is along first end
Mouth 21 to second port direction is sequentially provided with the first electrical heating area 22 and first seal installing zone 23；First electrical heating area 22
Provided with the first electric heating element 4, the first electrical heating area 22 is stretched into and with first in the one end of the first binding post 5 along the outside of pipe fitting socket section 2
Electric heating element 4 contacts；First body from first port 21 or second port insertion pipe fitting socket section 2 and with the first electrical heating area 22
And second seal installing zone 23 is fitted close.
The utility model, which discloses, provides a kind of connecting pipe double containment attachment structure, first, passes through the He of electrical heating area 22
The setting of seal installing zone 23, it is more firm that double-layer seal makes to connect between pipe fitting double containment attachment structure, wherein electric heating element 4
Can be integral by body and pipe fitting welding, overcome that body easily disconnects with pipe connector, the easy axial displacement of seal, water resistant push away
The deficiency that power is poor, pressure-bearing is low, it ensure that the security being connected between body and pipe fitting.
Secondly, a kind of connecting pipe double containment attachment structure provided by the utility model can be installed directly socket joint, in being not required to
Between short tube transition, it is easy for installation；And then reduce body interface quantity, numerous and diverse construction process is simplified, and then reduce and apply
The influence of human factor, ensure that construction quality in work.
Favourable, electrical heating area 22 is that pipe fitting socket section 2 is outwards recessed the groove of formation from inner side.Groove is along pipe fitting bellmouth
2 axis of section form annular, and groove is embedded in electric heating element 4, electric heating element is firmly secured in groove, reduce electric heating member
The risk that part 4 comes off.
Favourable, seal installing zone 23 sets the first seal groove, and first seal 3 is arranged in the first seal groove；The
One body is inserted in pipe fitting socket section 2 from first port 21, the outer wall of the first body and the first electric heating element 4 and first seal
3 inwalls are fitted close.The sealing of the first body is ensure that, because seal 3 is arranged in pipe fitting double sealing structure, not by people
For, environment, numerous and diverse working procedure etc. influence, and then extend the service life of seal 3；In addition, the setting of structure is to sealing
Part requirement can reduce, and then reduce the cost of pipeline laying.
Favourable, seal 3 uses rubber seal.Sealing ring can select rectangular seal or U-shaped sealing ring, corresponding
Seal groove, section can be rectangular channel or dovetail groove.
Favourable, pipe fitting socket section 2 also includes bellmouth backstop 24, and bellmouth backstop 24 is located at second port and first seal
Between installing zone 23, bellmouth backstop 24 has the first stop surface of at least one close side of first seal installing zone 23
241, the first stop surface 241 and the first seal groove have spacing a, and the first body is out of first port 21 grafting pipe fitting socket section 2
And abutted with the first stop surface 241.
Be among it anti-displacement place of safety away from a, i.e. the distance of the first stop surface 241 to the seam root of seal groove 23, effectively
Prevent body to be subjected to displacement, influence the sealing property that body is connected entirety with pipe fitting.
More favourable, body end face sets chamfering, 2X15 ° -4X45 ° of chamfer dimesion scope.Wherein, the setting of chamfering is easy to
The installation of body and pipe fitting socket section 2.
Favourable, the distance between the end face of first port 21 and the first stop surface 241 are b.Above-mentioned prevents that displacement is safe
Area's a values and hold into depth b value, the nominal diameter according to corresponding to body carries out selection assembling during assembling, prevents body to hold into depth not
Foot, reduces overall fastness and sealing.In order to increase the range of needs of pipeline, the nominal diameter scope of pipe fitting socket section 2 is
50-800mm, user can select to need the nominal diameter of pipe fitting.
Favourable, electric heating element 4 uses Electric thermal smelting belt.Electric thermal smelting belt welding method is to utilize to be embedded in junction contact surface
Electric heating element 4 be powered after caused high temperature conjunction method, to be rigidly connected.Electric thermal smelting belt welding is inlayed using an inwall
There is the polyethylene electric-melting band of resistance wire, be close to two outer surfaces for being connected end, at least more than 2cm thickness, then tight with heatproof zone
Gu；Simultaneously in interface pipe end inwall with after detachable tool firm supporting, then with electrothermal fusion welding machine resistance wire is given to power, electricity
Hinder silk heating melting expansion and form pressure, the polyethylene on interface both sides diffuses into one another, and closes power supply, the shape after sufficiently cool solidification
Into being reliably connected.Time and gear are set on electro-fusion welding machine before welding, is welded according to operational procedure.Welding terminates will
It could be moved after sufficiently cool.
A kind of connecting pipe double containment attachment structure provided by the utility model also includes the second body, the second body and pipe
One or split connection at the second port of part socket section 2.User is facilitated to select to use.
A kind of connecting pipe double containment attachment structure provided by the utility model, in addition to the second body, pipe fitting double containment
Structure also includes the second binding post and second seal, the inwall of pipe fitting socket section 2 along bellmouth backstop 24 to second port direction according to
Secondary to be provided with the second electrical heating area and second seal installing zone, the second electrical heating area is provided with the second electric heating element, the second binding post
One end is stretched into the second electrical heating area along the outside of pipe fitting socket section 2 and contacted with the second electric heating element, and second seal installing zone is set
The second seal groove is put, second seal is arranged in the second seal groove；Second body is out of second port insertion pipe fitting socket section 2
And it is fitted close with the second electrical heating area and second seal installing zone；
Bellmouth backstop 24 have close to second seal installing zone side the second stop surface 242, second body one end with
Second stop surface 242 abuts.
Above description realizes that the double of pipe fitting joint structure hold function, while adapts to flange pipe fitting joint structure.
The end of pipe fitting socket section 2 second can also be not provided with the second electric heating element and seal member, so be achieved that double hold
Single-intubation part attachment structure function.In addition a kind of connecting pipe double containment attachment structure provided by the utility model can also be realized
Bend pipe tools attachment structure, including singly hold 45 °, singly holds 90 °, double to hold 45 °, double to hold 90 °.Wherein, two pipe diameters can be
It is same diameter or different-diameter.
Favourable, the second stop surface 242 and the second seal groove have spacing a；Second port end face and the second stop surface 242
The distance between be b.With reference to the assembling selection of first body when second body connects.
Favourable, the outer wall between the corresponding first seal installing zone 23 of pipe fitting socket section 2 and second seal installing zone
On be integrally formed with connection short tube, connection short tube inner chamber connects with the inner chamber of pipe fitting socket section 2.Double containment can be set in connection short tube
It structure, can also be not provided with, the tee-joint function of pipe fitting can be realized, it is specific to can be achieved singly to hold double slotting tee pipe fitting structures, it is double to hold
Tail inserts tee pipe fitting structure.Double fourths of holding insert tee pipe fitting structure.
More favourable, one kind connection double containment pipe fitting joint structure includes plain edition pipe fitting double containment attachment structure and enhancing
Type pipe fitting double containment attachment structure；
Plain edition pipe fitting double containment attachment structure uses high-density polyethylene layer；
Enhanced pipe fitting double containment attachment structure includes from outside to inside：Outer polyethylene layers, composite bed resin bed, high intensity
Layers of reinforcement and inner side polyethylene layer.
Wherein, when pipeline engineering nominal pressure is less than below 1.0Mpa, selection plain edition pipe fitting double containment attachment structure is high
In more than 1.0Mpa selective enhancement type pipe fitting double containment attachment structure.Requirement is so met, while has saved society
Resource, more reduce and use pipe cost.
Wherein, the high density polyethylene (HDPE) that plain edition pipe fitting double containment attachment structure uses includes PE100 or PE80.
Wherein, enhanced pipe fitting double containment attachment structure divides left-and-right spiral that core pipe is first made using high intensity reinforcing material,
Resin is used to fix reinforcing material again compound to core pipe, outermost resin is synchronous once to extrude composite molding.
Alternatively, it is enhanced including metal enhancing or nonmetallic enhancing, using high intensity reinforcing material enhance pipe fitting with
The radial direction of pipe fitting joint structure 1 and axial drag, and the severe load about 70% of pipe fitting joint structure internal pressure is undertaken, while remain poly- second
The flexible feature of alkene.Wherein, metal reinforced pipe fitting can use the enhancing of inwall metal aperture web plate or pipe fitting inner wall metal
Plate strengthens.It is nonmetallic it is enhanced can use aramid fiber, intensity should be greater than 2500N/mm2, it is broken elongation and should be greater than being equal to
3.3%.53 ° -60 ° of wire or aramid fiber winding angle, are woven by left-handed with clockwise direction.
Alternatively, pipe fitting pressure-bearing grade size, diameter, the enhancing number of plies of adjustment pipe fitting joint structure, tubing can be corresponded to
The parameters such as wall thickness, the influence of pipe fitting fluid flow is reduced while ensureing to carry pressure.
The installation specific requirement of the utility model pipe fitting joint structure is：
When R1, body and pipe fitting are installed, open body, pipe fitting socket section 2 and socket packing material and clean pipe with clean cotton
Body and the dirt on pipe fitting joint face, and measured with universal meter and check whether electric heating element 4 qualified.When in-site installation seal 3
When, the seal groove in pipe fitting socket section 2 is cleaned out, is then properly placed in groove, must not anti-loaded or distortion.
R2, body only strike off the epidermis of socket and the contact portion of electric heating element 4 with specific purpose tool, it is ensured that body and seal
3 contact surfaces are not stripped off.When tube length must be cut, mechanical means should be used to cut, cutting end face should be smooth, forbids to use
Naked light, which burns, to be cut.Wherein, if cut-off body is enhanced material, the exposed reinforcing material in its end face should be sealed anti-again
Processing is oozed, its end face should not have exposed reinforcing material or acute angle.
R3, accurate measurement body are held into depth b value, and the mark that need to insert effective length is indicated at socket position.
R4, body socket end is directed at pipe fitting socket section 2, and two conduit axis is maintained on a flat line, will
It is once inserted, until markings are uniformly exposed at the end of pipe fitting socket section 2, after insertion, elasticity should meet electric melting connection
It is required that.To ensure that butt tube is straight, it is levelling to pad the lumps of wood etc., but must take out the lumps of wood after electro-fusion welding cooling.
Pipe is pushed into place by R5, the appropriate to the occasion use manpower of small-bore body insertion in pipe end chock block crowbar；Large-diameter pipe
Body can be pulled in the special instrument that leads such as bottle gouard moved by hands.Forbid to be inserted with the construction machinery ejection such as excavator pipe.Φ50mm-Φ90mm
Body pulled in using artificial push-in, Φ 110mm- Φ 200mm bodys using one ton of turnbuckle, Φ more than 200 pipe fitting uses
One to two 1.5 tons of Lever Blocks both sides symmetrically and evenly pulls in, and electric smelting binding post effectively need to be protected during push-in.
R6, insertion when, can brushing lubricant, lubricant must to body, pipe fitting, the harmless effect of rubber seal, and
It is nontoxic, tasteless, will not breed bacteria.Resistance is excessive during insertion, should extract body, checks whether cushion rubber distorts, must not be by force
Insertion.
When R7, brushing lubricant, lubricant is equably coated in hairbrush and had been charged on the cushion rubber surface in pipe fitting bellmouth,
Lubricant must not be coated in electric smelting area and jack surfaces, forbid to brush and excessively cause lubricant pollution load of overflow electric smelting area.
When R8, construction environment temperature are less than 8 DEG C or more than 32 DEG C, the technological parameter of electric smelting connection need to be adjusted, examination should be passed through
Test, after judging that quality of connection can be guaranteed, can connect.
R9, electric smelting connection machine output current, voltage should be stablized, and meet electric smelting Joining Technology requirement.It is omnipotent using preceding application
Whether table review electric smelting connection machine input and output current, voltage are one to there is error to adjust or be used after repairing.
A kind of connecting pipe double containment attachment structure provided by the utility model is adapted to buried-pipe laying, makes somebody a mere figurehead laying, be underwater
Laying and horizontal directional drill construction.
To sum up, connecting pipe double containment attachment structure provided by the utility model, can not only ensure body and pipe fitting it
Between firm connection, seal and electric heating element have complementary advantages, ensure that and rigidly connect between body and pipe fitting
While connecing, seal is not influenceed by outside environmental elements, extend seal durability；And connect not
Need centre to add short tube transition, effectively simplify construction process, and simplify pipeline configuration, so reduce laying into
This；And a kind of connecting pipe double containment attachment structure connecting portion provided by the utility model can adapt to the extraneous ring of complexity
Border, have a wide range of application.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or new using this practicality
Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein
The General Principle of justice can be realized in other embodiments in the case where not departing from spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The most wide scope consistent with features of novelty.
Claims (10)
1. a kind of connecting pipe double containment attachment structure, the connecting pipe double containment attachment structure includes the first body, and it is special
Sign is that the pipe fitting double containment attachment structure includes：Pipe fitting socket section (2), the first binding post (5) and first seal (3),
One end of the pipe fitting socket section (2) is first port (21), and the other end is second port, pipe fitting socket section (2) inwall
The first electrical heating area (22) and first seal installation are sequentially provided with along the first port (21) to the second port direction
Area (23)；The first electrical heating area (22) is provided with the first electric heating element (4), and described first binding post (5) one end is along the pipe
Stretch into the first electrical heating area (22) on the outside of part socket section (2) and contacted with first electric heating element (4)；First pipe
Body from the first port (21) or the second port insert the pipe fitting socket section (2) and with the first electrical heating area
(22) and second seal installing zone (23) is fitted close.
A kind of 2. connecting pipe double containment attachment structure according to claim 1, it is characterised in that the seal installation
Area (23) sets the first seal groove, and the first seal (3) is arranged in first seal groove；First body is from institute
State first port (21) to insert in the pipe fitting socket section (2), the outer wall of first body and first electric heating element (4)
It is fitted close with the first seal (3) inwall.
A kind of 3. connecting pipe double containment attachment structure according to claim 2, it is characterised in that the pipe fitting socket section
(2) bellmouth backstop (24) is also included, the bellmouth backstop (24) is located at the second port and the first seal installing zone
(23) between, the bellmouth backstop (24) has the first of at least one close first seal installing zone (23) side to stop
Block face (241), first stop surface (241) and first seal groove have a spacing a, and first body is from described first
Abutted in pipe fitting socket section (2) described in port (21) grafting and with first stop surface (241).
A kind of 4. connecting pipe double containment attachment structure according to claim 3, it is characterised in that the first port
(21) the distance between end face and first stop surface (241) are b.
A kind of 5. connecting pipe double containment attachment structure according to claim 1, it is characterised in that the electric heating element
(4) Electric thermal smelting belt is used.
6. a kind of connecting pipe double containment attachment structure according to claim any one of 1-5, it is characterised in that also include
Second body, second body are connected with one at the second port of the pipe fitting socket section (2) or split.
7. a kind of connecting pipe double containment attachment structure according to claim 3, it is characterised in that also including the second pipe
Body, the pipe fitting double sealing structure also include the second binding post and second seal, and pipe fitting socket section (2) inwall is described in
Bellmouth backstop (24) to second port direction is sequentially provided with the second electrical heating area and second seal installing zone, and second electricity adds
Hot-zone is provided with the second electric heating element, and described second binding post one end stretches into second electricity along on the outside of the pipe fitting socket section (2)
Heating zone simultaneously contacts with second electric heating element, and the second seal installing zone sets the second seal groove, and described second is close
Sealing is arranged in second seal groove；Second body is inserted in the pipe fitting socket section (2) from the second port
And it is fitted close with the second electrical heating area and second seal installing zone；
The bellmouth backstop (24) has the second stop surface (242) close to the second seal installing zone side, and described the
Two body one end abut with second stop surface (242).
A kind of 8. connecting pipe double containment attachment structure according to claim 7, it is characterised in that second stop surface
(242) there is spacing a with second seal groove；Between the second port end face and second stop surface (242) away from
From for b.
A kind of 9. connecting pipe double containment attachment structure according to claim 7, it is characterised in that the pipe fitting socket section
(2) it is integrally formed with the outer wall between corresponding first seal installing zone (23) and second seal installing zone and is connected short tube, institute
Connection short tube inner chamber is stated to connect with pipe fitting socket section (2) inner chamber.
A kind of 10. connecting pipe double containment attachment structure according to claim 8 or claim 9, it is characterised in that the connecting tube
Part double containment attachment structure includes plain edition pipe fitting double containment attachment structure and enhanced pipe fitting double containment attachment structure；
The plain edition pipe fitting double containment attachment structure uses high-density polyethylene layer；
The enhanced pipe fitting double containment attachment structure includes from outside to inside：Outer polyethylene layers, composite bed resin bed, high intensity
Layers of reinforcement and inner side polyethylene layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720939770.1U CN207178964U (en) | 2017-07-31 | 2017-07-31 | A kind of connecting pipe double containment attachment structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720939770.1U CN207178964U (en) | 2017-07-31 | 2017-07-31 | A kind of connecting pipe double containment attachment structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207178964U true CN207178964U (en) | 2018-04-03 |
Family
ID=61743986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720939770.1U Active CN207178964U (en) | 2017-07-31 | 2017-07-31 | A kind of connecting pipe double containment attachment structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207178964U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472914A (en) * | 2020-04-15 | 2020-07-31 | 台州华崧汽车部件有限公司 | Oil pump with leakage-proof device and oil leakage detection method thereof |
-
2017
- 2017-07-31 CN CN201720939770.1U patent/CN207178964U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111472914A (en) * | 2020-04-15 | 2020-07-31 | 台州华崧汽车部件有限公司 | Oil pump with leakage-proof device and oil leakage detection method thereof |
| CN111472914B (en) * | 2020-04-15 | 2021-04-20 | 温州仁谦汽车油泵有限公司 | Oil pump with leakage-proof device and oil leakage detection method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108180325A (en) | A kind of production method of band injection electric heating melting bell and spigot joint internal-rib bellows and its connector | |
| CN110657305A (en) | Combined sealing connection method for plastic pipes | |
| CN106321990A (en) | Socket and spigot type structural wall winding pipe and connecting method thereof | |
| CN207178964U (en) | A kind of connecting pipe double containment attachment structure | |
| CN113507087B (en) | Corrosion-resistant anti-aging MPP electric power pipe with self-repairing function | |
| CN103574197A (en) | Weldable steel flange with embedded O-shaped sealing rings | |
| CN209977493U (en) | Improved socket joint | |
| CN206054999U (en) | A kind of heavy caliber plastic-coated steel flexibility socket joint fast connector | |
| CN211599878U (en) | Combined sealing connector for plastic pipe | |
| CN209943733U (en) | Self-locking socket joint with built-in snap ring | |
| CN110805780B (en) | Stainless steel pipeline emergency repair construction method | |
| CN202091659U (en) | Electrofusion joint apparatus for drainpipe wound with polyethylene plastic steel | |
| CN103883810B (en) | A kind of steel wire mesh frame plastic composite tube and construction method | |
| CN207848683U (en) | A kind of pipeline self-sealing socket interface | |
| CN208871244U (en) | A kind of municipal works draining wear-and corrosion-resistant type pipeline | |
| CN105889626A (en) | Connector for draining pipeline | |
| CN214789510U (en) | HDPE steel wire net skeleton composite pipe for fire fighting | |
| CN107131364B (en) | Enhanced cushion rubber electric smelting double containment polyethylene composite pipe | |
| CN209557824U (en) | It is a kind of for connecting the plumb joint of two plastic-coated steels | |
| CN218787372U (en) | Double-flat-wall pipe with bellmouth and flat-spigot hollow structure wall | |
| CN201739700U (en) | High-density PE elbow and tee connector | |
| CN210319001U (en) | Socket joint type double-seal ring electric hot melt polyethylene plastic winding pipe body | |
| CN210326955U (en) | Cable protection casing for electric power transmission | |
| CN210050423U (en) | PVC drain pipe with protective structure is convenient for transport | |
| CN216789453U (en) | Water power pipeline with good waterproof performance |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |