CN202442034U - Longitudinal stress adjustor for pipe material - Google Patents
Longitudinal stress adjustor for pipe material Download PDFInfo
- Publication number
- CN202442034U CN202442034U CN2012200519537U CN201220051953U CN202442034U CN 202442034 U CN202442034 U CN 202442034U CN 2012200519537 U CN2012200519537 U CN 2012200519537U CN 201220051953 U CN201220051953 U CN 201220051953U CN 202442034 U CN202442034 U CN 202442034U
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- CN
- China
- Prior art keywords
- pipe
- longitudinal stress
- outer casing
- sleeve
- casing pipes
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- Expired - Lifetime
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Abstract
The utility model discloses a longitudinal stress adjustor for a pipe material. The longitudinal stress adjustor comprises an outer casing pipe and two inner casing pipes, wherein connection sections connected with an external pipeline are arranged at one ends of the inner casing pipes, sealing sections in a pipe cavity of the outer casing pipe are arranged at the other ends of the inner casing pipes, annular grooves are arranged on the outer walls of the sealing ends of the inner casing pipes, and sealing rings are arranged in the annular grooves; and the sealing sections of the two casing pipes are arranged in the pipe cavity of the outer casing pipe, the connection sections of the two casing pipes are arranged on the both sides of the outer casing pipe, and limiting rings are arranged at the two end parts of the outer casing pipe. According to the utility model, non-metal expansion joint connection pieces are used for replacing metal expansion joint connection pieces, thus solving a certain extent of risks of the metal connection pieces in the aspects of corrosion resistance and pipeline connection, decreasing construction cost, and avoiding later-stage maintenance.
Description
Technical field
The utility model relates to the pipe fitting field, is specifically related to a kind of tubing longitudinal stress regulator.
Background technique
In refuse landfill, the collecting pipe part in the leachate collection system not only refers to the part that level is laid, and also comprises the vertical collection part of collecting pipe simultaneously.Landfill generic hierarchical landfill; Behind each layer garbage truck, cover the certain thickness argillic horizon, play and reduce refuse pollution and rainwater infiltration effect; But also cause the top percolate can not flow to the bottom conducting shell simultaneously, therefore need to arrange vertical leachate collection system.In traditional refuse landfill, the flexible of vertical tube often relies on the distortion of pipeline self to solve, and often causes the pipeline breaking blocking pipe, and gas can't be drained.The flexible link of the polyethylene of my company's design has proposed the vertical tube lifting technology, makes vertical pipe change and freely to change along with the landfill layer, efficiently solves the difficult problem of breaking of pipeline, pipeline breaking problem when having avoided the landfill layer to change.
For the slip joint of in the vertical leachate collection system standpipe of refuse landfill, installing, we adopt stainless steel telescopic joint at first, but adopt the stainless steel telescopic joint link to have the shortcoming of following several respects:
When 1, in the vertical leachate collection system standpipe of refuse landfill stainless steel telescopic joint being installed; Stainless steel telescopic joint must carry out preservative treatment, but the complicated component of percolate from garbage filling field is stronger to the corrosivity of steel part; Behind the running or closing of refuse landfill; Stainless steel telescopic joint or metal connecting piece go wrong the leakage that directly causes percolate, and stainless steel telescopic joint or metal connecting piece can't be changed basically in the meantime, therefore can be to jeopardizing phreatic safety.
2, during the stainless steel telescopic joint link, adopt being connected of stainless steel telescopic joint link and polyvinyl piping materials steel to mould crossover sub and connect or adopt flange to connect, can cause the increase of construction cost like this, simultaneously, link also need carry out preservative treatment.
When in the vertical leachate collection system standpipe of refuse landfill, stainless steel telescopic joint being installed; Because its anti-corrosive properties are connected the aspect and have certain risk with pipeline; And can cause the increase of construction cost, therefore need to adopt nonmetal slip joint link to replace the stainless steel telescopic joint link.
Summary of the invention
The purpose of the utility model is for overcoming the deficiency of above-mentioned existing technology, a kind of tubing longitudinal stress regulator is provided, and it can make vertical pipe change and freely change along with the landfill layer, pipeline breaking problem when having avoided the variation of landfill layer.
For realizing above-mentioned purpose, the utility model adopts following technical proposals:
A kind of tubing longitudinal stress regulator; It comprises outer sleeve and two inner sleeves, and an end of inner sleeve is provided with the linkage section that is connected with external pipe, and the other end is provided with the seal section that is arranged in the outer sleeve tube chamber; The outer wall of inner sleeve sealed end is provided with annular groove, in annular groove, is provided with seal ring; The seal section of two inner sleeves is arranged in the outer sleeve tube chamber, and the linkage section of two inner sleeves is positioned at the both sides of outer sleeve, and two of sleeve pipe ends are provided with limited ring outside.
The utility model is a bi-directional expansion joint structure; Can stretch simultaneously at both direction; The seal section of inner sleeve moves back and forth in the sleeve pipe outside, and seal ring moves along with inner sleeve and blocks the gap between inner sleeve outer wall and the outer sleeve inner wall, plays the effect of sealing; Limited ring has the effect that prevents that inner sleeve from skidding off in moving process.
The beneficial effect of the utility model is; The phenomenon of expanding with heat and contract with cold that causes when slip joint not only can solve pipe network in difference variation is installed in the vertical leachate collection system standpipe of refuse landfill; But also can eliminate drawing pipe that the vertical leachate collection system standpipe of refuse landfill causes in rubbish layering landfill compacting sinking process, avoid the axial stress that produces, absorb earthquake, earth subsidence amount of deformation to pipeline.
Adopt nonmetal slip joint link to replace the stainless steel telescopic joint link, solved metal connecting piece anti-corrosive properties with have certain risk aspect pipeline is connected, reduced construction cost, need not to carry out later maintenance.
Description of drawings
Fig. 1 is the utility model structural representation.
Wherein 1. outer sleeves, 2. inner sleeve, 3. seal section, 4. seal ring, 5. limited ring.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
As shown in Figure 1, a kind of polyvinyl piping materials longitudinal stress regulator for polyethylene bi-directional expansion joint structure, can stretch at both direction simultaneously, and its structure is: polyethylene bi-directional expansion joint comprises outer sleeve 1 and two inner sleeves 2; Wherein an end of inner sleeve 2 and external polyethylene are led and are oozed pipeline and adopt electric smelting to be connected or hot melt connects (linkage section); The other end of inner sleeve 2 is arranged in outer sleeve tube chamber (seal section 3); The outer wall of inner sleeve sealed end 3 is provided with annular groove; The seal section 3 that in annular groove, is provided with 4, two inner sleeves of seal ring is arranged in outer sleeve 1 tube chamber, and the linkage section of two inner sleeves 2 is positioned at the both sides of outer sleeve 1.The seal section of inner sleeve 2 moves back and forth in the sleeve pipe 1 outside, and seal ring 4 moves along with inner sleeve 2 and blocks the gap between inner sleeve 2 outer walls and outer sleeve 1 inwall, plays the effect of sealing; The end of sleeve pipe 1 is provided with limited ring outside, prevents that inner sleeve 2 from skidding off in moving process.
Adopt nonmetal slip joint link to replace the stainless steel telescopic joint link, solved metal connecting piece anti-corrosive properties with have certain risk aspect pipeline is connected, reduced construction cost, need not to carry out later maintenance.
Claims (1)
1. tubing longitudinal stress regulator; It is characterized in that; It comprises outer sleeve and two inner sleeves, and an end of inner sleeve is provided with the linkage section that is connected with external pipe, and the other end is provided with the seal section that is arranged in the outer sleeve tube chamber; The outer wall of inner sleeve sealed end is provided with annular groove, in annular groove, is provided with seal ring; The seal section of two inner sleeves is arranged in the outer sleeve tube chamber, and the linkage section of two inner sleeves is positioned at the both sides of outer sleeve, and two of sleeve pipe ends are provided with limited ring outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200519537U CN202442034U (en) | 2012-02-17 | 2012-02-17 | Longitudinal stress adjustor for pipe material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200519537U CN202442034U (en) | 2012-02-17 | 2012-02-17 | Longitudinal stress adjustor for pipe material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202442034U true CN202442034U (en) | 2012-09-19 |
Family
ID=46823485
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200519537U Expired - Lifetime CN202442034U (en) | 2012-02-17 | 2012-02-17 | Longitudinal stress adjustor for pipe material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202442034U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424552A (en) * | 2020-04-08 | 2020-07-17 | 山东交通学院 | Continuous section corrugated pipe connecting device for continuous T-beam bridge pier top and using method |
-
2012
- 2012-02-17 CN CN2012200519537U patent/CN202442034U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111424552A (en) * | 2020-04-08 | 2020-07-17 | 山东交通学院 | Continuous section corrugated pipe connecting device for continuous T-beam bridge pier top and using method |
| CN111424552B (en) * | 2020-04-08 | 2021-11-23 | 山东交通学院 | Continuous section corrugated pipe connecting device for continuous T-beam bridge pier top and using method |
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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 |
Granted publication date: 20120919 |
|
| CX01 | Expiry of patent term |