CN103481514A - Plastic tube butting technology - Google Patents
Plastic tube butting technology Download PDFInfo
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- CN103481514A CN103481514A CN201310472621.5A CN201310472621A CN103481514A CN 103481514 A CN103481514 A CN 103481514A CN 201310472621 A CN201310472621 A CN 201310472621A CN 103481514 A CN103481514 A CN 103481514A
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- plastic tube
- enlarging
- ectosome
- joint
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Abstract
The invention discloses a plastic tube butting technology, and belongs to the technical field of plastic tube processing technologies. The technology mainly comprises the following steps: 1, cleaning the internal surface and the external surface of a plastic tube end; 2, setting a coupling on the external surface of the plastic tube; 3, arranging a support device in the plastic tube; 4, using a flaring device to flare the end of the plastic tube to form a bell mouth; 5, carrying out cooling shaping of the bell mouth, and dismounting the flaring device and the support device; 6, installing a joint at the bell mouth, connecting the coupling with the joint, and compressing the bell mouth between the coupling and the joint; 7, connecting the other end of the plastic tube to a joint through a coupling; and 8, relatively connecting two flange connecting ends. The technology can guarantee that the flow of a butting pipeline is not influenced, can also guarantee that a butting position can bearing enough large radial impact force and axial impact force, and can be widely used in the plastic tube butting.
Description
Technical field
The present invention relates to a kind of plastics pipe interface technique, belong to plastic tube technology field.
Background technology
The slightly large pipeline transportation industry at pressure, jetting machine industry for example, plastic conduit is widely used so that it is high pressure resistant, corrosion-resistant, cost is low.But, as the main mode that adopts the electric heating melting sleeve to be connected at present of the docking between pipeline and pipeline, the jointing place of this connected mode exists that intensity is low, cost is high, slow, the non-removable defect of constructing.
Vast plastic tube manufacturer and researcher have also been recognized the problem of plastics pipe interface in the prior art, are finding better measure and solution always, and have carried out a large amount of technology explorations and improvement.
For example Chinese utility model patent ZL95225570.7 discloses a kind of high pressure resistance plastic joint for pipeline, by rubber seal, with the screw thread mother set of groove, external thread sleeve, pad and forming with the internal thread becket, have advantages of simple in structure, connect firmly, good airproof performance.For example, but also there are some defects in this interface: because end of plastic tube is originally as tubular structure, during docking, radially can bear enough large pressure, but the axial withstand voltage impulsive force for joint is but very little, causes Joint's falling off, cause the plastics pipe interface failure.
Therefore, for a kind of new plastics pipe interface technique of exploitation, not only there is urgent researching value, also there are good economic benefit and commercial Application potentiality, this power place and basis that the present invention is accomplished just.
Summary of the invention
In order to overcome the defect of above-mentioned pointed existing plastics pipe interface technique, the inventor conducts in-depth research this, after having paid a large amount of creative works, thereby has completed the present invention.
Particularly, technical problem to be solved by this invention is: a kind of plastics pipe interface technique is provided, and the flow that can guarantee to dock pipeline is unaffected, can guarantee that again joint bears enough large radial impact power and axial impact force.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of plastics pipe interface technique is provided, and described plastics pipe interface technique comprises the following steps:
(1) clean inner surface and the outer surface of end of plastic tube;
(2) be set with a box cupling at the plastic tube outer surface, described box cupling be provided with one with suitable abutting end and the link with internal thread of plastic tube external diameter, the screw thread latus rectum of described link is greater than the external diameter of plastic tube, is provided with the conical surface to described link expansion by described abutting end between described link and abutting end;
(3) place a bracing or strutting arrangement for stretching plastic tube inner surface in plastic tube;
(4) use expanding device end of plastic tube to be expanded into to the horn mouth of an even thickness, described horn mouth has the outer surface consistent with the conical surface of described box cupling;
(5) after described horn mouth cooling and shaping, dismantle described expanding device and bracing or strutting arrangement;
(6) at described horn mouth place, one joint is installed, described joint has the circulation passage identical with the plastic tube internal diameter, described joint one end is provided with the support end consistent with described horn mouth tapering, the described joint other end is provided with flanged ends, be provided with the external screw thread suitable with described coupling inner thread on the described joint between described support end and flanged ends, connect described box cupling and joint, described horn mouth is pressed between described box cupling and joint;
(7) repeating step (1)-(6), also used box cupling and joint to link together another end of plastic tube;
(8) two flanged ends are linked together relatively.
In described plastics pipe interface technique of the present invention, as a kind of improvement, described bracing or strutting arrangement comprises the supporter of column, described supporter is provided with the first slideway that extends axially and run through described supporter, the cross sectional shape of described the first slideway is square, be slidably fitted with slide block in described the first slideway, described supporter is provided with two the second slideways that are oppositely arranged and radially extend, described the second slideway all is communicated with described the first slideway, all be slidably fitted with contact in every described second slideway, described contact one end and described slide block offset, the surface that described slide block and described contact offset is for described contact being pushed to the lozenges of plastic tube, the other end stretches out described supporter, the outer surface of described supporter is set with a pressure ring, described pressure ring is fixedly installed on described supporter, described contact stretches out between described pressure ring and described contact and pressure ring and is provided with the first back-moving spring, the two ends of described first passage are respectively equipped with the first sprue and the second sprue, described the first sprue and the second sprue all are fixedly mounted on described supporter, a screw rod is threaded on described the first sprue, described screw rod one end relies on described slide block, the other end stretches out described horn mouth, between described the second sprue and slide block, is clamped with the second back-moving spring.
In described plastics pipe interface technique of the present invention, as further improvement, the end face of described the second sprue is provided with an annular protrusion, and the end of described the second back-moving spring is set on described annular protrusion.
In described plastics pipe interface technique of the present invention, as further improvement, described expanding device comprises enlarging endosome and the enlarging ectosome linked together, form a tubaeform die cavity between described enlarging endosome and enlarging ectosome, be provided with the interior heating element heater be arranged on described enlarging endosome around described tubaeform die cavity and be arranged at the external heat element on described enlarging ectosome, described tubaeform die cavity comprises direct tube section die cavity and the loudspeaker segment type chamber set gradually, the cross sectional shape of described direct tube section die cavity and plastic tube is suitable, described loudspeaker segment type chamber and described bell-mouthed shape are suitable, heating-up temperature in described loudspeaker segment type chamber is higher than the heating-up temperature in described direct tube section die cavity, described direct tube section die cavity is set to uncovered away from an end in described loudspeaker segment type chamber, described screw rod passes described enlarging endosome and is threaded with described enlarging endosome.
In described plastics pipe interface technique of the present invention, as further improvement, described enlarging ectosome comprises some ectosome monomers of annular array, each described ectosome monomer is hinged being installed on described enlarging endosome all, and described enlarging ectosome is provided with some described ectosome monomer bandings banding element together away from the outer surface of hinged end.
In described plastics pipe interface technique of the present invention, as further improvement, on each described ectosome monomer, be equipped with an outer support section, described outer support section deviates from described tubaeform die cavity direction and extends described enlarging endosome.
In described plastics pipe interface technique of the present invention, as further improvement, described outer support section and described enlarging ectosome are set to one.
In described plastics pipe interface technique of the present invention, as another kind, improve, in step (8), between two flanges, be provided with sealing ring.
After having adopted technique scheme, the invention has the beneficial effects as follows:
1, owing to first the termination of plastic tube being expanded and become horn mouth, re-use box cupling and joint the horn mouth banding, then utilize joint that two plastic tubes are docked, not only can bear enough large radial impact power after making plastics pipe interface, in the axial direction, with traditional banding tubular termination, compare, horn mouth gives enough large anti-impact force guarantee, makes plastics pipe interface more firm;
2, the internal diameter due to joint is identical with the plastic tube internal diameter, make plastics pipe interface after flow can not be affected, ensured the serviceability of plastic tube.
3, owing in expanding device, on enlarging endosome and enlarging ectosome, heating element heater all being installed, during use, can especially for the plastic tube of double-deck composition, there is different melt temperatures according to plastic tube and design different inside and outside heating-up temperatures, avoid two-ply plastic to produce internal stress when softening, cause the two-ply plastic layering to be broken.
4,, due to enlarging ectosome design mix body structure, only the banding element of end need be opened detachably to easy to use and maintenance when dismounting.
5, because the ectosome monomer is provided with outer support section, do not establish heating element heater in outer support section, in use, outer support section can wrap plastic tube, and the plastic tube wrapped can not be softened distortion, prevents that expanding device is not easy to operate when end of plastic tube is softening.
The accompanying drawing explanation
Fig. 1 is plastic tube enlarging view in the embodiment of the present invention;
Fig. 2 is the cutaway view of A-A in Fig. 1;
Fig. 3 is plastics pipe interface view in the embodiment of the present invention.
Wherein, in Fig. 1-3, each number designation refers to respectively following concrete meaning, element and/or parts.
In figure: 1, enlarging endosome, 2, the ectosome monomer, 3, outer support section, 4, hinge, 5, external heat element, 6, interior heating element heater, 7, supporter, 8, pressure ring, 9, slide block, the 10, first sprue, the 11, second sprue, 12, the second back-moving spring, the 13, first back-moving spring, 14, contact, 15, banding element, 16, box cupling, 17, joint, 18, sealing ring, 19, plastic tube, 20, screw rod.
The specific embodiment
Below in conjunction with drawings and Examples, the present invention is further described.But the purposes of these exemplary embodiments and purpose only are used for exemplifying the present invention, not real protection scope of the present invention is formed to any type of any restriction, more non-protection scope of the present invention is confined to this.
As shown in Figure 1, Figure 2 with Fig. 3 in common shown in, a kind of plastics pipe interface technique provided by the present invention, described plastics pipe interface technique mainly comprises the following steps:
(1) clean inner surface and the outer surface of plastic tube 19 terminations;
(2) be set with a box cupling 16 at plastic tube 19 outer surfaces, box cupling 16 be provided with one with suitable abutting end and the link with internal thread of plastic tube 19 external diameters, the screw thread latus rectum of link is greater than the external diameter of plastic tube 19, is provided with the conical surface to the link expansion by abutting end between link and abutting end;
(3) bracing or strutting arrangement for stretching plastic tube 19 inner surfaces in the interior placement one of plastic tube 19;
(4) use expanding device plastic tube 19 terminations to be expanded into to the horn mouth of an even thickness, horn mouth has the outer surface consistent with the conical surface of box cupling 16;
(5) after the horn mouth cooling and shaping, dismounting expanding device and bracing or strutting arrangement;
(6) joint 17 is installed at the horn mouth place, joint 17 has the circulation passage identical with plastic tube 19 internal diameters, joint 17 1 ends are provided with the support end consistent with the horn mouth tapering, joint 17 other ends are provided with flanged ends, be provided with the external screw thread suitable with box cupling 16 internal threads on the joint 17 between support end and flanged ends, connection coupling 16 and joint 17, be pressed in horn mouth between box cupling 16 and joint 17;
(7) repeating step (1)-(6), also used box cupling 16 and joint 17 to link together another end of plastic tube;
(8) two flanged ends are linked together relatively, be provided with sealing ring 18 between two flanges, sealing ring 18 is preferably the metallic graphite carbon spirotallic gasket, when interface distance is different, can, by adjusting the different numbers of plies of sealing ring 18, adapt to interface connectivity robustness and the sealing of two plastic tubes.
Certainly, in the former patent documentation of expanding device, also there are some to be disclosed, but, the inventor has paid huge creative work, developed voluntarily a kind of more suitable device, be used for realizing the enlarging of plastic tube 19, especially for current two-ply plastic commonly used, because the inside and outside two-layer different component that has of two-ply plastic, its softening temperature difference, if it is softening to adopt the same temperature to control plastic tube 19 ends, there will be two-ply plastic to produce internal stress at binder course, cause layering or break, affecting the normal use of plastic tube 19.
Before plastic tube 19 terminations are softening, first at interior placement one bracing or strutting arrangement of plastic tube 19, its purpose one is the rigidity that increases plastic tube 19, avoids plastic tube 19 terminations in operating process to deform, the 2nd, and convenient operation, give one of expanding device and borrow force.In above two purposes, the support device structure that the inventor uses has also been done careful research, changed traditional use gasket ring as the design of supporting, bracing or strutting arrangement of the present invention comprises the supporter 7 of column, supporter 7 is provided with the first slideway that extends axially and run through supporter 7, the cross sectional shape of the first slideway is square, be slidably fitted with slide block 9 in the first slideway, supporter 7 is provided with two the second slideways that are oppositely arranged and radially extend, the second slideway all is communicated with the first slideway, all be slidably fitted with contact 14 in every second slideway, contact 14 1 ends and slide block 9 offset, slide block 9 is for contact 14 being pushed to the lozenges of plastic tube 19 with the surface that contact 14 offsets, the other end stretches out supporter 7, the outer surface of supporter 7 is set with a pressure ring 8, pressure ring 8 is fixedly installed on supporter 7, contact 14 stretches out between pressure ring 8 and contact 14 and pressure ring 8 and is provided with the first back-moving spring 13, the two ends of first passage are respectively equipped with the first sprue 10 and the second sprue 11, the first sprue 10 and the second sprue 11 all are fixedly mounted on supporter 7, a screw rod 20 is threaded on the first sprue 10, screw rod 20 1 ends rely on slide block 9, the other end stretches out horn mouth, the end face that is clamped with the second back-moving spring 12, the second sprues 11 between the second sprue 11 and slide block 9 is provided with an annular protrusion, and the end of the second back-moving spring 12 is set on annular protrusion.The supporter 7 assembled is positioned in plastic tube 19, screw rod 20 stretches out plastic tube 19 terminations, rotating screw bolt 20, contact 14 stretches out, and by plastic tube 19 inwall stretchings, now contact 14 is can not the application of force excessive, avoid plastic tube 19 distortion, after outer support section 3 is supported in plastic tube 19 these positions, be rotated further screw rod 20, contact 14 is by plastic tube 19 stretchings.
Expanding device comprises enlarging endosome 1 and the enlarging ectosome linked together, form a tubaeform die cavity between enlarging endosome 1 and enlarging ectosome, be provided with the interior heating element heater 6 be arranged on enlarging endosome 1 around tubaeform die cavity and be arranged at the external heat element 5 on the enlarging ectosome, tubaeform die cavity comprises direct tube section die cavity and the loudspeaker segment type chamber set gradually, the cross sectional shape of direct tube section die cavity and plastic tube 19 is suitable, loudspeaker segment type chamber and bell-mouthed shape are suitable, heating-up temperature in loudspeaker segment type chamber is higher than the heating-up temperature in the direct tube section die cavity, usually, the heating-up temperature of direct tube section die cavity is lower than the melt temperature of plastic tube 19, and the heating-up temperature in loudspeaker segment type chamber is between the melt temperature and decomposition temperature of plastic tube 19, the direct tube section die cavity is set to uncovered away from an end in loudspeaker segment type chamber, screw rod 20 passes enlarging endosome 1 and is threaded with enlarging endosome 1.During use, at first plastic tube 19 terminations are inserted into the direct tube section die cavity, make termination softening, rotate enlarging endosome 1, enlarging endosome 1 moves to supporter 7 directions, softening plastic tube 19 is imported to loudspeaker segment type chamber, and melting in this die cavity, interior heating element heater 6 around direct tube section die cavity and loudspeaker segment type chamber and external heat element 5 are all controlled separately, in plastic tube 19 melt stage, interior heating element heater 6 around the direct tube section die cavity and external heat element 5 all no longer continue heating, adopt this flaring, overcome the defect that traditional expanding device causes plastic tube intensity to reduce wall thickness attenuation after the plastic tube enlarging.Usually, interior heating element heater 6 and external heat element 5 are all selected heating wire, can certainly select other for example high steams etc.
If plastic tube 19 is two-ply plastic, this expanding device more can embody its use value so.During use, the plastic tube softening process, the melt temperature of layer component in the corresponding plastic tube of the heating-up temperature of interior heating element heater 6, the melt temperature of the outer layer component of the corresponding plastic tube of the heating-up temperature of external heat element 5, the two layers of plastic pipe is synchronously softened, and has avoided softening stress-displacement stage to produce internal stress.
The enlarging ectosome comprises some ectosome monomers 2 of annular array, each ectosome monomer 2 all is installed on enlarging endosome 1 by independent hinge 4 is hinged, the enlarging ectosome is provided with some ectosome monomer 2 bandings banding element 15 together away from the outer surface of hinged end, and banding element 15 can be used clip or end to end annular extension spring.Adopt the enlarging ectosome of this mode, external heat element 5 does not generally adopt around layout while arranging, but arranges along the bearing of trend of ectosome monomer 2, when dismounting, can not consider dismounting external heat element 5 again like this, has further saved maintenance time.
Equally, expanding device also can be designed to other forms, and for example, ectosome monomer 2 is connected on enlarging endosome 1 by securing member, but some complexity a little that operates like this removes and installs all and relatively wastes time and energy.
As another ingenious design of the present invention, be equipped with an outer support section 3 on each ectosome monomer 2, outer support section 3 deviates from tubaeform die cavity direction and extends enlarging endosome 1, outer support section 3 is set to one with the enlarging ectosome, and the softening front supporting role of plastic tube 19 has not only been played by outer support section 3, after plastic tube 19 is softening, while rotating enlarging endosome 1, the maintenance effect is also played by outer support section 3, and outer support section 3 wraps plastic conduit 19, and enough support forces are provided.For easy to install and use, banding element 15 is installed on the end of outer support section 3.
The purposes that should be appreciated that these embodiment only limits the scope of the invention for the present invention being described but not being intended to.In addition; also should understand; after having read technology contents of the present invention, those skilled in the art can make various changes, modification and/or modification to the present invention, within these all equivalent form of values fall within the protection domain that the application's appended claims limits equally.
Claims (8)
1. a plastics pipe interface technique, is characterized in that, described technique comprises the following steps:
(1) clean inner surface and the outer surface of end of plastic tube;
(2) be set with a box cupling at the plastic tube outer surface, described box cupling be provided with one with suitable abutting end and the link with internal thread of plastic tube external diameter, the screw thread latus rectum of described link is greater than the external diameter of plastic tube, is provided with the conical surface to described link expansion by described abutting end between described link and abutting end;
(3) place a bracing or strutting arrangement for stretching plastic tube inner surface in plastic tube;
(4) use expanding device end of plastic tube to be expanded into to the horn mouth of an even thickness, described horn mouth has the outer surface consistent with the conical surface of described box cupling;
(5) after described horn mouth cooling and shaping, dismantle described expanding device and bracing or strutting arrangement;
(6) at described horn mouth place, one joint is installed, described joint has the circulation passage identical with the plastic tube internal diameter, described joint one end is provided with the support end consistent with described horn mouth tapering, the described joint other end is provided with flanged ends, be provided with the external screw thread suitable with described coupling inner thread on the described joint between described support end and flanged ends, connect described box cupling and joint, described horn mouth is pressed between described box cupling and joint.
(7) repeating step (1)-(6), also used box cupling and joint to link together another end of plastic tube;
(8) two flanged ends are linked together relatively.
2. plastics pipe interface technique as claimed in claim 1, it is characterized in that: described bracing or strutting arrangement comprises the supporter of column, described supporter is provided with the first slideway that extends axially and run through described supporter, the cross sectional shape of described the first slideway is square, be slidably fitted with slide block in described the first slideway, described supporter is provided with two the second slideways that are oppositely arranged and radially extend, described the second slideway all is communicated with described the first slideway, all be slidably fitted with contact in every described second slideway, described contact one end and described slide block offset, the surface that described slide block and described contact offset is for described contact being pushed to the lozenges of plastic tube, the other end stretches out described supporter, the outer surface of described supporter is set with a pressure ring, described pressure ring is fixedly installed on described supporter, described contact stretches out between described pressure ring and described contact and pressure ring and is provided with the first back-moving spring, the two ends of described first passage are respectively equipped with the first sprue and the second sprue, described the first sprue and the second sprue all are fixedly mounted on described supporter, a screw rod is threaded on described the first sprue, described screw rod one end relies on described slide block, the other end stretches out described horn mouth, between described the second sprue and slide block, is clamped with the second back-moving spring.
3. plastics pipe interface technique as claimed in claim 2, it is characterized in that: the end face of described the second sprue is provided with an annular protrusion, and the end of described the second back-moving spring is set on described annular protrusion.
4. as claim 1 or 2 or 3 described plastics pipe interface techniques, it is characterized in that: described expanding device comprises enlarging endosome and the enlarging ectosome linked together, form a tubaeform die cavity between described enlarging endosome and enlarging ectosome, be provided with the interior heating element heater be arranged on described enlarging endosome around described tubaeform die cavity and be arranged at the external heat element on described enlarging ectosome, described tubaeform die cavity comprises direct tube section die cavity and the loudspeaker segment type chamber set gradually, the cross sectional shape of described direct tube section die cavity and plastic tube is suitable, described loudspeaker segment type chamber and described bell-mouthed shape are suitable, heating-up temperature in described loudspeaker segment type chamber is higher than the heating-up temperature in described direct tube section die cavity, described direct tube section die cavity is set to uncovered away from an end in described loudspeaker segment type chamber, described screw rod passes described enlarging endosome and is threaded with described enlarging endosome.
5. plastics pipe interface technique as claimed in claim 4, it is characterized in that: described enlarging ectosome comprises some ectosome monomers of annular array, each described ectosome monomer is hinged being installed on described enlarging endosome all, and described enlarging ectosome is provided with some described ectosome monomer bandings banding element together away from the outer surface of hinged end.
6. plastics pipe interface technique as claimed in claim 5 is characterized in that: be equipped with an outer support section on each described ectosome monomer, described outer support section deviates from described tubaeform die cavity direction and extends described enlarging endosome.
7. plastics pipe interface technique as claimed in claim 6, it is characterized in that: described outer support section and described enlarging ectosome are set to one.
8. plastics pipe interface technique as claimed in claim 1, is characterized in that: in step (8), between two flanges, be provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310472621.5A CN103481514B (en) | 2013-10-11 | 2013-10-11 | A kind of plastics pipe interface technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310472621.5A CN103481514B (en) | 2013-10-11 | 2013-10-11 | A kind of plastics pipe interface technique |
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| CN103481514A true CN103481514A (en) | 2014-01-01 |
| CN103481514B CN103481514B (en) | 2015-09-09 |
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| CN201310472621.5A Active CN103481514B (en) | 2013-10-11 | 2013-10-11 | A kind of plastics pipe interface technique |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276317A (en) * | 2015-11-20 | 2016-01-27 | 朱德伟 | Novel pressure hose and connecting component thereof |
| CN110375140A (en) * | 2019-07-25 | 2019-10-25 | 山东东宏管业股份有限公司 | A kind of steel wire mesh frame polyethylene compound pipe connection structure and connection method and application |
| CN113606395A (en) * | 2020-05-05 | 2021-11-05 | 纽珀有限公司 | Hose, hose assembly and corresponding method for manufacturing a hose assembly |
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| US4878697A (en) * | 1987-10-14 | 1989-11-07 | Dresser Industries, Inc. | Compression coupling for plastic pipe |
| DE4106378A1 (en) * | 1991-02-28 | 1992-09-10 | Hewing Gmbh | CONNECTING DEVICE FOR PLASTIC PIPES AND METHOD FOR CONNECTING A PLASTIC PIPE |
| CN101059187A (en) * | 2007-05-23 | 2007-10-24 | 蔡海华 | Flange type pipeline connector structure |
| CN101514771A (en) * | 2008-02-20 | 2009-08-26 | 甘国工 | Metal plastic composite tube with thermoplastic tube end contact flange |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4070042A (en) * | 1975-10-17 | 1978-01-24 | Polva Nederland B.V. | High-strength coupling of plastic pipe to metal pipe |
| US4878697A (en) * | 1987-10-14 | 1989-11-07 | Dresser Industries, Inc. | Compression coupling for plastic pipe |
| DE4106378A1 (en) * | 1991-02-28 | 1992-09-10 | Hewing Gmbh | CONNECTING DEVICE FOR PLASTIC PIPES AND METHOD FOR CONNECTING A PLASTIC PIPE |
| CN101059187A (en) * | 2007-05-23 | 2007-10-24 | 蔡海华 | Flange type pipeline connector structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105276317A (en) * | 2015-11-20 | 2016-01-27 | 朱德伟 | Novel pressure hose and connecting component thereof |
| CN110375140A (en) * | 2019-07-25 | 2019-10-25 | 山东东宏管业股份有限公司 | A kind of steel wire mesh frame polyethylene compound pipe connection structure and connection method and application |
| CN110375140B (en) * | 2019-07-25 | 2022-04-01 | 山东东宏管业股份有限公司 | Connecting method of steel wire mesh framework polyethylene composite pipe |
| CN113606395A (en) * | 2020-05-05 | 2021-11-05 | 纽珀有限公司 | Hose, hose assembly and corresponding method for manufacturing a hose assembly |
| CN113606395B (en) * | 2020-05-05 | 2024-04-12 | 纽珀有限公司 | Hose, hose assembly and corresponding method for manufacturing a hose assembly |
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|---|---|
| CN103481514B (en) | 2015-09-09 |
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