CN201169743Y - Plastic composite pipe for prestressed concrete bridge - Google Patents
Plastic composite pipe for prestressed concrete bridge Download PDFInfo
- Publication number
- CN201169743Y CN201169743Y CNU2008200525739U CN200820052573U CN201169743Y CN 201169743 Y CN201169743 Y CN 201169743Y CN U2008200525739 U CNU2008200525739 U CN U2008200525739U CN 200820052573 U CN200820052573 U CN 200820052573U CN 201169743 Y CN201169743 Y CN 201169743Y
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- pipe
- plastic composite
- concrete bridge
- plastic
- main body
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Abstract
The utility model belongs to the building material technical field, in particular to a plastic composite pipe for a pre-stress concrete bridge. The utility model aims at the defects of poor corrosion resistance, antiseepage performance and sealing performance existing in the prior art to provide the following technical proposal: the plastic composite pipe for the pre-stress concrete bridge comprises a round pipe shaped body made of plastic composite material. The plastic composite pipe for the pre-stress concrete bridge is characterized in that the pipe wall of the round pipe shaped body is provided with convex-outside concave-inside screw threads through a forming mold; the round pipe shaped body adopts plastic heavy polymer as a main raw material, and reinforced fiber is added into the plastic heavy polymer for composite molding. The pipe adopts the plastic composite material, so the plastic composite pipe for the pre-stress concrete bridge has the advantages of acid resistance, alkali resistance, strong corrosion resistance, high strength, and trampling resistance; and the pipe is provided with the screw threads through the change of the forming mold, which can ensure that the linkage of the pipe relies on the linkage of the screw threads, thereby improving the sealing performance of the pipe.
Description
Technical field
The utility model belongs to building material technical field, is specifically related to a kind of Prestressed Concrete Bridges plastic composite pipe.
Background technology
At present, at building field, Prestressed Concrete Bridges mainly adopts metal bellows and plastic film capicitor with tubing.
Metal bellows does not have permanent antiseptic power because of the material reason, can not resist the seepage of water and presstressed reinforcing steel is produced corrosion; And the metal bellows moulding is that the band iron stack is Wrapping formed, is not global formation, and easily broken by the vibrating head cutter, its sealing and antiseep are poor.
Though plastic film capicitor has antiseptic property, and be that global formation is difficult for being broken by the vibrating head cutter, but plastic film capicitor is the same with metal bellows, and its connection is to rely on pipe fitting and tubing tight fit to link, so such connected mode has the shortcoming of joint tighness difference.
Summary of the invention
The purpose of this utility model is at the above-mentioned defective that exists in the prior art, and a kind of corrosion-resistant and sealing performance Prestressed Concrete Bridges plastic composite pipe preferably is provided.
The utility model is to realize above-mentioned purpose by the following technical solutions: this Prestressed Concrete Bridges plastic composite pipe, the pipe shape main body that comprises a plastic composite is characterized in making the screw thread that has the evagination indent on the tube wall of pipe shape main body by moulding form.
Can have the screw thread that two pitch equate on the tube wall of pipe shape main body, it is semicircle along the vertical section of tubing, wherein another big of the radius ratio of the semi-circular cross-section of a screw thread.
It is primary raw material that described pipe shape main body adopts the plastic cement high molecular polymer, and adds the fortifying fibre composite molding therein.
Because tubing adopted above-mentioned plastic composite, so the utlity model has have good effect in acid, be not afraid of alkali, corrosion resistance is strong, intensity height, the anti-advantage that jams on; Owing to the change by moulding form is threaded the tubing external form, tubing is linked depend on threaded connection to improve the sealing of tubing again.
Description of drawings
Fig. 1 is the vertical sectional view of pipe shape main body among the utility model embodiment.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Referring to Fig. 1, be the vertical sectional view of pipe shape main body among the utility model embodiment.This Prestressed Concrete Bridges plastic composite pipe comprises the pipe shape main body 1 of a plastic composite, is characterized in making the screw thread 2 that has the evagination indent on the tube wall of pipe shape main body 1 by moulding form.
Can see that from Fig. 1 have the screw thread 2 that two pitch equate on the tube wall of pipe shape main body 1, it is semicircle along the vertical section of tubing, wherein another big of the radius ratio of the semi-circular cross-section of a screw thread.This structure helps the fastness that concrete and clad pipe are condensated as a whole.
It is primary raw material that above-mentioned pipe shape main body 1 adopts the plastic cement high molecular polymer, and adds the fortifying fibre composite molding therein.
Claims (3)
1, a kind of Prestressed Concrete Bridges plastic composite pipe comprises it is characterized in that the pipe shape main body (1) of a plastic composite: make the screw thread (2) that has the evagination indent on the tube wall of pipe shape main body (1) by moulding form.
2, Prestressed Concrete Bridges plastic composite pipe according to claim 1, it is characterized in that: on the tube wall of pipe shape main body (1), have the screw thread (2) that two pitch equate, it is semicircle along the vertical section of tubing, wherein another big of the radius ratio of the semi-circular cross-section of a screw thread.
3, Prestressed Concrete Bridges plastic composite pipe according to claim 1 is characterized in that: it is primary raw material that described pipe shape main body (1) adopts the plastic cement high molecular polymer, and adds the fortifying fibre composite molding therein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200525739U CN201169743Y (en) | 2008-03-19 | 2008-03-19 | Plastic composite pipe for prestressed concrete bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200525739U CN201169743Y (en) | 2008-03-19 | 2008-03-19 | Plastic composite pipe for prestressed concrete bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201169743Y true CN201169743Y (en) | 2008-12-24 |
Family
ID=40208795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200525739U Expired - Fee Related CN201169743Y (en) | 2008-03-19 | 2008-03-19 | Plastic composite pipe for prestressed concrete bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201169743Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103477001A (en) * | 2011-05-18 | 2013-12-25 | 东拓工业株式会社 | Sheath for PC steel |
| CN105040984A (en) * | 2015-07-03 | 2015-11-11 | 天津鑫坤泰预应力专业技术有限公司 | Bamboo-joint-shaped prestress flat opening plastic pipe |
| CN105040910A (en) * | 2015-07-03 | 2015-11-11 | 天津鑫坤泰预应力专业技术有限公司 | Bamboo-shaped prestress circular plastic tube |
-
2008
- 2008-03-19 CN CNU2008200525739U patent/CN201169743Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103477001A (en) * | 2011-05-18 | 2013-12-25 | 东拓工业株式会社 | Sheath for PC steel |
| CN103477001B (en) * | 2011-05-18 | 2016-08-17 | 东拓工业株式会社 | PC steel sleeve pipe |
| CN105040984A (en) * | 2015-07-03 | 2015-11-11 | 天津鑫坤泰预应力专业技术有限公司 | Bamboo-joint-shaped prestress flat opening plastic pipe |
| CN105040910A (en) * | 2015-07-03 | 2015-11-11 | 天津鑫坤泰预应力专业技术有限公司 | Bamboo-shaped prestress circular plastic tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081224 Termination date: 20130319 |