CN202149289U - One-stage prestressed concrete pipe - Google Patents
One-stage prestressed concrete pipe Download PDFInfo
- Publication number
- CN202149289U CN202149289U CN201020574374U CN201020574374U CN202149289U CN 202149289 U CN202149289 U CN 202149289U CN 201020574374 U CN201020574374 U CN 201020574374U CN 201020574374 U CN201020574374 U CN 201020574374U CN 202149289 U CN202149289 U CN 202149289U
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- China
- Prior art keywords
- prestressed concrete
- pipe
- socket
- concrete pipe
- bellmouth
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Joints With Sleeves (AREA)
Abstract
Provided is a one-stage prestressed concrete pipe. A socket is formed in the left side of the pipe body, and a jack is formed in the right side of the pipe body. The one-stage prestressed concrete pipe is characterized in that the length of an inverted slope outside the socket is shortened by 20 mm, so that the length of the socket working surface is greater than or equal to 100 mm, and the total depth of the socket is increased by 10 mm. The one-stage prestressed concrete pipe of the utility model increases the allowable relative rotation angle of a pipe joint, enhances the installation construction efficiency, reduces the construction cost, improves the ability of resisting nonuniform settlement of foundation, ensures the overall quality of pipeline projects, decreases the maintenance cost for utilities pipelines, and prolongs the service life of the whole pipelines.
Description
Technical field:
The utility model relates to a kind of prestressed concrete pipe material, an especially a kind of stage prestressed concrete pipe.
Background technique:
One stage prestressed concrete pipe (YYG) is China's nonmetal pipeline that the mid-1960s is trial-produceed successfully in last century.Because of it has that processing technology is simple, cost is low (be merely steel pipe 60%), be widely used in urban water supply and drainage, long distance water transfer, field irrigation and various hydraulic engineering.Stipulate according to State Standard of the People's Republic of China " prestressed concrete pipe (GB5696-2006) "; One stage prestressed concrete pipe (YYG) adopts the spigot and socket type interface of being furnished with the round rubber seal ring; The holding of DN400～1600 different pressures grade pipe, slot length size are identical; Only hoop diameter and the cushion rubber diameter that adopted are different, and outside the big 10mm of outer adverse slope length of adverse slope length than DN400～1600, other hold DN1800～2000 different pressures grade pipe except that bellmouth, slot length size and DN400～1600 are identical; Also stipulate simultaneously; It is 1.5 ° that the pipe coupling of each pressure rating pipe of DN400～700 allows relative rotation, and the relative permission corner of each pressure rating pipe of DN800～1400 is 1 °, and the relative permission corner of each pressure rating pipe of DN1600～3000 is 0.5 °.The mouth of pipe of angle joint is relatively poor to the adaptive capacity of uneven settlement of foundation like this, if on soft soil foundation, lay, need carry out pipeline foundation, otherwise because of uneven settlement of foundation, can cause the slippage of pipeline joint socket place cushion rubber and causes leaking.
Summary of the invention:
The purpose of the utility model is to overcome the deficiency of existing technology; An a kind of stage prestressed concrete pipe is provided; This pipe can increase the permission relative rotation of pipe coupling; Improve installation efficient, reduce construction cost, strengthen the maintenance cost that tubing is resisted the ability of uneven settlement of foundation, guarantee pipe engineering total quality, reduced utilities pipeline, prolong the working life of whole pipeline.
As above design, the technological scheme of the utility model is: an a kind of stage prestressed concrete pipe, in the left side of its body bellmouth is set, on the right side of body socket is set; It is characterized in that: with the outer adverse slope shorten length 20mm of bellmouth, reach 30-40mm, the length that makes the bellmouth working surface increases 10mm more than or equal to 100mm with the bellmouth total depth, reaches 190-200mm.
The utlity model has following advantage and good effect:
1, since the present invention with the outer adverse slope shorten length 20mm of bellmouth; That is: DN400～1600 reach 30mm; DN1800～2000 reach 40mm; And be ground to smooth smoothly,, effectively reduce the intractability and the cost on ground or basis to increase allowing the amount of extracting, improving pipe coupling and allow relative rotation more than a times, strengthen tubing and resist the ability of uneven settlement of foundation, ensure the pipe engineering total quality of the mouth of pipe.
2, owing to the present invention the bellmouth face length is increased to more than the 100mm, and is ground to smooth smooth degree, to increase the operating range of watertight rubber seal ring.
3, because the present invention increases 10mm with the bellmouth total depth, that is: DN400～1600 reach 190mm, and DN1800～2000 reach 200mm, to increase the amount of being pressed into that allows of socket.
4, because the improvement of the present invention through line up, make tubing when mounted counterpart easily, be convenient to installation, improve installation efficient, reduce construction cost.
Description of drawings:
Fig. 1 is the interface schematic representation of the utility model.
Embodiment:
As shown in the figure: a stage prestressed concrete pipe (YYG) is the precast concrete body 4 that in concrete tube wall, establishes two dimension prestressing that is adopted the preparation of vibration extrusion process by concrete 1, ring orientation prestress reinforcing bar 2 and longitudinal prestressing reinforcing bar 3.Its bellmouth 5 is arranged at the left side of concrete tube body 4, and socket 6 is arranged at the right side of concrete tube body 4, and the bell of pipe and socket joint are with 7 sealings of a circular solids rubber seal during installation.
The outer adverse slope length a value of bellmouth is shortened 20mm, that is: DN400～1600 reach 30mm, and DN1800～2000 reach 40mm, and are ground to smooth smooth degree; And stage prestressed concrete pipe (YYG) bellmouth face length b value is increased to more than the 100mm, and be ground to smooth smooth degree; One stage prestressed concrete pipe (YYG) bellmouth total depth c value is increased 10mm, that is: DN400～1600 reach 190mm, and DN1800～2000 reach 200mm, and interior adverse slope and the interior edge face with a stage prestressed concrete pipe (YYG) polishes simultaneously.
The utility model carries out integral body polishing processing simultaneously to outer adverse slope, working surface, interior adverse slope and the interior edge face of stage prestressed concrete pipe (YYG) bellmouth.
Claims (1)
1. a stage prestressed concrete pipe is provided with bellmouth in the left side of its body, on the right side of body socket is set; It is characterized in that: with the outer adverse slope shorten length 20mm of bellmouth, reach 30-40mm, the length that makes the bellmouth working surface increases 10mm more than or equal to 100mm with the bellmouth total depth, reaches 190-200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020574374U CN202149289U (en) | 2010-10-25 | 2010-10-25 | One-stage prestressed concrete pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020574374U CN202149289U (en) | 2010-10-25 | 2010-10-25 | One-stage prestressed concrete pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202149289U true CN202149289U (en) | 2012-02-22 |
Family
ID=45590348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020574374U Expired - Lifetime CN202149289U (en) | 2010-10-25 | 2010-10-25 | One-stage prestressed concrete pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202149289U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121422A (en) * | 2014-07-14 | 2014-10-29 | 芜湖中源赛特管业有限公司 | Trenchless traction tube and trenchless delivery system and application thereof |
-
2010
- 2010-10-25 CN CN201020574374U patent/CN202149289U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121422A (en) * | 2014-07-14 | 2014-10-29 | 芜湖中源赛特管业有限公司 | Trenchless traction tube and trenchless delivery system and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |