CN102563241B - D-shaped spiral corrugated pipe - Google Patents
D-shaped spiral corrugated pipe Download PDFInfo
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- CN102563241B CN102563241B CN201210003709.8A CN201210003709A CN102563241B CN 102563241 B CN102563241 B CN 102563241B CN 201210003709 A CN201210003709 A CN 201210003709A CN 102563241 B CN102563241 B CN 102563241B
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Abstract
The invention relates to a D-shaped spiral corrugated pipe and a manufacturing method, which can be used for not only effectively improving the strength of a large-bore corrugated pipe, but also fundamentally improving the elasticity of the large-bore corrugated pipe. The D-shaped spiral corrugated pipe comprises an inner pipe, the section of a metal pipe wound on a body of the inner pipe is of a D-shaped structure, the bottom of the D-shaped metal pipe is composited with the body of the inner pipe, and a plastic layer is composited on the surface of the D-shaped metal pipe. The D-shaped spiral corrugated pipe has the advantages that firstly, the bottom of the D-shaped metal pipe contacts with the surface of the inner pipe, so that pressure on the inner pipe is greatly relieved and the supporting strength and the pressure bearing capacity of the inner pipe are greatly improved when the D-shaped metal pipe is pressed, secondly, reliable combination of the D-shaped metal pipe and the wall of the inner pipe is ensured as a plastic wedge is embedded into a through hole arranged at the bottom of the D-shaped metal pipe along the length direction, and thirdly, a plastic rivet cap is formed to integrally and firmly connect the plastic layer positioned on the surface of the D-shaped metal pipe with the surface of the D-shaped metal pipe, so that the corrugated pipe is prevented from layering in use.
Description
Technical field
The present invention relates to one and effectively can not only improve heavy caliber bellows intensity, and the elasticity of heavy caliber bellows can be made to obtain a kind of D shape helical bellows and the making method of essence raising, belong to bellows and manufacture field.
Background technique
CN201078525Y, title " steel strip enhancement polythene helical bellows of spigot-and-socket electric melting connecting type ", it is for solving the problem of the easy seepage of steel band reinforced polyethylene spiral ripple pipe connection interface and poor reliability.Steel strip enhancement polythene helical bellows of spigot-and-socket electric melting connecting type, with outer layer polyethylene, the metal frame of winding is fixed on inner layer polyethylene, particularly one end of bellows is provided with socket, and the other end of bellows is provided with bellmouth, bellmouth inwall is imbedded a circle electric heating element composition.Adopt this steel strip enhancement polythene helical bellows of spigot-and-socket electric melting connecting type, can be widely used in the connection construction of plastic tube.Its deficiency: one is metal frame is take off structure outward, what formed with inner layer polyethylene is that line face contacts, instead of face contact, not only plyability is poor, and under the effect of external force, metal frame is easily outer takes off movement, causes and destroys inner layer polyethylene, the quality of direct shadow pipe matter, even causes inner layer polyethylene damaged; Two is that support strength is low, and because metal frame is in taking off structure outward, its metal frame both sides outwards movement of external pressure, not only causes the layering of metal frame and inner layer polyethylene, and cause the direct reduction of inner layer polyethylene intensity; Three is due to the outer layer polyethylene material different from two kinds, metal frame system, by temperature to affect its coefficient expanded with heat and contract with cold different, therefore in use inevitably stratification occurs, cause bellows intensity sharply to decline, bellows caves in.
Summary of the invention
Purpose of design: avoid the deficiency in background technique, design one effectively can not only improve heavy caliber bellows and strengthen, and the elasticity of heavy caliber bellows can be made to obtain a kind of D shape helical bellows and the making method of essence raising.
Design proposal: in order to realize above-mentioned purpose of design.1, metal tube cross section is the design of D shape, is one of technical characteristics of the present invention.The object done like this is: because D shape metal tube bottom surface opening is along D shape metal tube length direction opening, for suitable long through-hole, both sides are support edge in the middle of the pipe bottom surface formed, when along long through hole with interior pipe compound tense, enter along forming snap-fit engagement with along long through-hole in long through-hole for the molten plastic made on inner tubal wall, both the effect of limited support limit displacement had been served, serve again the rivet effect of riveted joint D shape metal tube, serve again the effect of pipe intensity in strengthening simultaneously; Secondly, D shape metal tube is when being subject to external force extruding, and D shape metal tube is neither outwards taken off and moved, and also can not move to inside contracting, and ensure that the reliable compound between D shape metal tube and inner tubal wall.2, the semicircle face of D shape metal tube is uneven and the design of uneven further groove center inside trumpet shape through hole, is technical characteristics two of the present invention.The object done like this is: when molten plastic and the D shape metal semicircle of uneven being furnished with multiple inside trumpet shape through hole form compound tense, enter inside trumpet shape through hole after the plastics of its melting enter groove under the effect of external pressure and form the continuously connected fastener lid with location upsetting, the plastic layer be compounded on D shape metal tube face and D shape metal tube face are firmly connected as a single entity by this continuously connected fastener lid.
Technological scheme 1: a kind of D shape helical bellows, it comprises interior pipe, and the metal tube cross section be wrapped on interior pipe pipe shaft is D shape structure and the pipe shaft phase compound of the bottom surface of D shape metal tube and interior pipe, and there is plastic layer in the pipe face of D shape metal tube again.
Technological scheme 2: a kind of making method of D shape helical bellows, it is characterized in that: adopt metal tube producer steel band to be made the semicircle D shape that bottom is plane of the opening and manage, then to adopt the heavy caliber polyolefin manufactured by application to be wound around to increase pipe production line in making bellows in pipe process, make pipe in bellows and semicircle D shape pipe is wrapped in bellows on one side and plastics on corrugated pipe wall embed in the opening of semicircle D shape pipe, finally adopt the heavy caliber polyolefin manufactured by application to be wound around growth pipe production line and molten plastic is compounded on semicircle D shape pipe.
The present invention is compared with background technique, and one is that D shape metal tube bottom surface contacts with inner tube surface face, and when making D shape metal tube pressurized, dramatically reduce the pressure of internal pipe, and D shape metal tube is just as arch bridge structure, bearing capacity is large; Two is because D shape metal tube bottom surface contacts with inner tube surface face, greatly improves interior pipe support strength and bearing capacity; Three is because D shape metal tube bottom surface has through hole to be embedded with plastics wedge along having grown, and ensure that the reliable compound between D shape metal tube and inner tubal wall; Four be due to D shape metal tube face has multiple inside trumpet shape hole and the plastic layer be positioned on D shape metal tube face at melting compound tense, be injected in the multiple inside trumpet shape holes on D shape metal tube face, form Plastic Rivets headkerchief, the plastic layer be positioned on D shape metal tube face and D shape metal tube face are firmly connected as a single entity by this Plastic Rivets headkerchief, ensure that bellows in use stratification can not occur.
Accompanying drawing explanation
Fig. 1 is the structural representation of D shape helical bellows.
Fig. 2 is the cross section structure schematic diagram of D shape metal tube in Fig. 1.
Embodiment
Embodiment 1: with reference to accompanying drawing 1-2.A kind of D shape helical bellows, it comprises interior pipe 1, and metal tube 2 cross section be wrapped on interior pipe 1 pipe shaft is D shape structure and the bottom surface of D shape metal tube and the pipe shaft phase compound of interior pipe 1, and the pipe face of D shape metal tube 2 has plastic layer 3 again.Described D shape metal tube 2 bottom surface is hatch frame 4.The semicircle face of described D shape metal tube 2 has multiple through hole 5 and through hole 5 in inside trumpet shape.Described opening refers to D shape metal tube length direction opening 4.Described D shape metal tube 2 adopts steel band to make.
Embodiment 2: on the basis of embodiment 1, a kind of making method of D shape helical bellows, metal tube producer is adopted steel band to be made the semicircle D shape metal tube of bottom for plane of the opening, then to adopt heavy caliber polyolefin manufactured by claimant to be wound around to increase pipe production line in making bellows in pipe 1 process, while make pipe in bellows, while semicircle D shape pipe to be wrapped on bellows and plastics on corrugated pipe wall embed in the opening of semicircle D shape pipe, finally adopt the heavy caliber polyolefin manufactured by claimant to be wound around growth pipe production line molten plastic to be compounded on semicircle D shape pipe.The semicircle face of described D shape metal tube 2 adopts mould to be pressed into uneven, and inside trumpet shape through hole 5 is had at groove surface center, the plastics of melting enter and to enter after in the uneven groove on D shape metal tube in inside trumpet shape through hole and the continuously connected fastener formed with location upsetting under the effect of external pressure, and the plastic layer be compounded on D shape metal tube face and D shape metal tube face are firmly connected as a single entity by this location upsetting continuously connected fastener.
It is to be understood that: although above-mentioned, mentality of designing of the present invention is contrasted detailed text description; but these text descriptions; just the simple text of mentality of designing of the present invention is described; instead of the restriction to mentality of designing of the present invention; any combination not exceeding mentality of designing of the present invention; increase and amendment, all fall within the scope of protection of the present invention.
Claims (2)
1. a D shape helical bellows, it comprises interior pipe (1), it is characterized in that: metal tube (2) cross section be wrapped on interior pipe (1) pipe shaft is D shape structure and D shape metal tube (2) semicircle face is uneven, inside trumpet shape through hole (5) is had in the groove of uneven, D shape metal tube (2) bottom surface is hatch frame (4), because D shape metal tube bottom surface opening is along D shape metal tube length direction opening, it is suitable long through-hole in the middle of the pipe bottom surface formed, both sides are support edge, when along long through hole with interior pipe compound tense, enter along forming snap-fit engagement with along long through-hole in long through-hole for the molten plastic made on inner tubal wall, both the effect of limited support limit displacement had been served, serve again the rivet effect of riveted joint D shape metal tube, serve again the effect of pipe intensity in strengthening simultaneously, D shape metal tube is when being subject to external force extruding, and D shape metal tube is neither outwards taken off and moved, and also can not move to inside contracting, and ensure that the reliable compound between D shape metal tube and inner tubal wall, the bottom surface of D shape metal tube is covered with plastic layer (3) with the pipe shaft phase compound of interior pipe (1), the pipe face of D shape metal tube (2), due to D shape metal tube face has multiple inside trumpet shape hole and the plastic layer be positioned on D shape metal tube face at melting compound tense, be injected in the multiple inside trumpet shape holes on D shape metal tube face, form Plastic Rivets headkerchief, the plastic layer be positioned on D shape metal tube face and D shape metal tube face are firmly connected as a single entity by this Plastic Rivets headkerchief, ensure that bellows in use stratification can not occur, the semicircle face of described D shape metal tube adopts mould to be pressed into uneven.
2. D shape helical bellows according to claim 1, is characterized in that: described D shape metal tube (2) adopts steel band to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210003709.8A CN102563241B (en) | 2012-01-09 | 2012-01-09 | D-shaped spiral corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210003709.8A CN102563241B (en) | 2012-01-09 | 2012-01-09 | D-shaped spiral corrugated pipe |
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| Publication Number | Publication Date |
|---|---|
| CN102563241A CN102563241A (en) | 2012-07-11 |
| CN102563241B true CN102563241B (en) | 2015-01-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210003709.8A Active CN102563241B (en) | 2012-01-09 | 2012-01-09 | D-shaped spiral corrugated pipe |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4628966A (en) * | 1984-08-09 | 1986-12-16 | Shiro Kanao | Synthetic resin pipe for underground use |
| US5390704A (en) * | 1992-12-09 | 1995-02-21 | Kanao; Shiro | Synthetic resin pipe including cylindrical inner wall and a spirally extending corrugated outer wall |
| CN201521727U (en) * | 2009-11-03 | 2010-07-07 | 甘国工 | Winded double-wall corrugated pipe with metal frame enhanced body |
| CN201731192U (en) * | 2010-05-24 | 2011-02-02 | 陈怡� | Large-caliber double-well corrugated water pipe |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61141889U (en) * | 1985-02-25 | 1986-09-02 | ||
| KR100222498B1 (en) * | 1992-02-25 | 1999-10-01 | 시로오 가나오 | Pressure-resistant helical corrugated pipe |
| CN100400951C (en) * | 2005-08-12 | 2008-07-09 | 蔡海华 | Steel-plastic composite pipe with bridge type framework |
-
2012
- 2012-01-09 CN CN201210003709.8A patent/CN102563241B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4628966A (en) * | 1984-08-09 | 1986-12-16 | Shiro Kanao | Synthetic resin pipe for underground use |
| US5390704A (en) * | 1992-12-09 | 1995-02-21 | Kanao; Shiro | Synthetic resin pipe including cylindrical inner wall and a spirally extending corrugated outer wall |
| CN201521727U (en) * | 2009-11-03 | 2010-07-07 | 甘国工 | Winded double-wall corrugated pipe with metal frame enhanced body |
| CN201731192U (en) * | 2010-05-24 | 2011-02-02 | 陈怡� | Large-caliber double-well corrugated water pipe |
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| Publication number | Publication date |
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| CN102563241A (en) | 2012-07-11 |
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Owner name: SHAOXING LONGZE PIPELINE CO., LTD. Free format text: FORMER OWNER: ZHEJIANG SHUANGLIN ELECTROMECHANICAL TECHNOLOGY CO., LTD. Effective date: 20141121 |
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Effective date of registration: 20141121 Address after: 312352, Zhejiang, Shaoxing province Shangyu district mayor Tong Tong Village Applicant after: ZHEJIANG LONGZE PIPELINE CO., LTD. Address before: 313213, No. 111 West South Road, Yu Town, Huzhou, Zhejiang, Deqing County Applicant before: Zhejiang Shuanglin Electromechanical Technology Co., Ltd. |
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Owner name: ZHEJIANG DONGYING PIPE CO., LTD. Free format text: FORMER OWNER: SHAOXING LONGZE PIPELINE CO., LTD. Effective date: 20150706 |
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Effective date of registration: 20150706 Address after: 312352, Zhejiang City, Shangyu province Shaoxing district mayor Tong Tong village head village Patentee after: Zhejiang Dongying Pipe Co., Ltd. Address before: 312352, Zhejiang, Shaoxing province Shangyu district mayor Tong Tong Village Patentee before: ZHEJIANG LONGZE PIPELINE CO., LTD. |