CN200993278Y - Sleeve compensator - Google Patents
Sleeve compensator Download PDFInfo
- Publication number
- CN200993278Y CN200993278Y CN 200620153568 CN200620153568U CN200993278Y CN 200993278 Y CN200993278 Y CN 200993278Y CN 200620153568 CN200620153568 CN 200620153568 CN 200620153568 U CN200620153568 U CN 200620153568U CN 200993278 Y CN200993278 Y CN 200993278Y
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- CN
- China
- Prior art keywords
- bushing
- ring
- utility
- model
- sleeve
- Prior art date
- 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 - Fee Related
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- Sealing Devices (AREA)
Abstract
A novel bushing compensator is provided, which comprises an inner bushing, an outer bushing and a seal ring, and is characterized in that a piston is provided in the inner bushing in the outer bushing, a slot is provided in the inner bushing, in the bushing a V-like seal ring and an O ring are provided; on the movable end of the inner bushing, a guide strip and a guiding seal ring are provided; a pressure cover is provided on the end of the inner bushing entered into the outer bushing to cover the gap between the inner bushing and the outer bushing; the pressure cover and an enhancing ring of the outer bushing are fixed by a lock pin. The utility model can eliminate any fixing pedestal. By providing seal rings that block earth and underground water, corrosion on the seal face due to external foreign matters and underground water when mounting overhead and burying in earth can be prevented, this efficiently guarantees the safe and reliable operation of the utility model, reduces the project cost, also improves the service life of the utility model and reduces the project maintenance cost, the utility model is applicable for different types of installation such as overhead, direct burying and in ditches, etc.
Description
Technical field
The utility model relates to a kind of flexible device of pipeline thermal that compensates, and particularly relates to a kind ofly with the novel sleeve expansion joint of seal ring combining form as sealed body, is the improvement to existing sleeve expansion joint structure.
Background technique
When the heat of compensation pipeline is flexible, sleeve expansion joint is in the past generally taked packing seal, sealing is annotated fill out the agent leakage, make the maintenance of product very loaded down with trivial details, also increased engineering cost, and special inspection shaft must be set under ground piping, and the pipeline of operated by rotary motion sleeve expansion joint also need be provided with fixed bearing, and these have all increased engineering cost greatly.Publication number is the Chinese utility model patent " compound filling type sleeve expansion joint " of CN2613451, it comprises telescopic cover, bolt, syrup filling tip, overcoat, it is characterized in that telescopic cover and overcoat flexibly connect, between overcoat and the telescopic cover by seal ring and packing_seal, be provided with spring and ball sealer structure at the syrup filling tip inner chamber, ball sealer cooperates with the syrup filling tip inwall under the effect of spring.Publication number is the Chinese utility model patent " no fixed bearing directly buried type sleeve expansion joint " of CN2570587, it comprise inner sleeve, guiding obturage ring, annotate and to fill out embolism, outer sleeve, main force-bearing ring, pay force-bearing ring and flexible sealing composition, it is characterized in that described main force-bearing ring is connected, pays force-bearing ring and is connected with inner sleeve with outer sleeve, do not have the gap between main force-bearing ring and pair force-bearing ring.The above-mentioned sleeve expansion joint that prior art provides though structure is brought in constant renewal in, has certain practicability, but still can't meet the need of market, and people expect to have how better sleeve expansion joint to occur.
The model utility content
The purpose of this utility model is to overcome the prior art above shortcomings, by improvement to existing sleeve expansion joint structure, provide a kind of with the seal ring combining form as sealed body, avoid safeguarding, use simple, lower-cost novel sleeve expansion joint, this sleeve expansion joint is by mechanical combined moving sealing configuration and inside and outside sleeve axial rub are finished nose balance together, bending resistance has improved in the guidance tape mechanism of the movable end by increasing inner sleeve; Consider the physical seal principle and the chemical composition of sealing material, the wide lip of employing is flexible on the sealing configuration " V " the shape sealing configuration, utilize the hydrodynamic seal principle to reach reliable sealing effect, thereby reduce friction, make sealing effect better.
The technological scheme that the utility model provides is: this novel sleeve expansion joint, include inner sleeve, outer sleeve, seal ring, be characterized in packing in the inner sleeve of outer sleeve inside and have piston, inner sleeve is provided with groove, installing v-ring and O-ring seals in this groove, the movable end of inner sleeve is provided with guidance tape and pilot seal circle, enter at the inner sleeve end on the part of outer sleeve and also be provided with gland, to cover the gap between inner sleeve and the outer sleeve, fix with safetied pin between the stiffening ring of this gland and outer sleeve.
Compared with prior art, the beneficial effects of the utility model are: can fully phase out fixed bearing, by on inner sleeve and anticreep shoulder, all being provided with retaining soil and phreatic seal ring, can also prevent built on stilts and when burying ground introduced contaminants underground water to the destructions such as corrosion of sealing surface, effectively guaranteed the work that the utility model is safe and reliable, greatly reduce engineering cost, simultaneously also improved working life of the present utility model and reduced the engineering maintenance expense, be suitable for making somebody a mere figurehead, the various installation situation of direct-burried, trench.
Description of drawings
Accompanying drawing is the embodiment's that provides of the utility model a structural representation.
Embodiment
As shown in the figure, this novel sleeve expansion joint, include inner sleeve 1, outer sleeve 6, seal ring 10, pilot seal circle 4, v-ring 5 and O-ring seals 7, wherein pack in the inner sleeve 1 of outer sleeve 6 inside and have piston, inner sleeve 1 is provided with groove, installing v-ring 5 and twice O-ring seals 7 in this groove, the movable end of inner sleeve 1 is provided with guidance tape 8 and pilot seal circle 4, enter at inner sleeve 1 end on the part of outer sleeve 6 and also be provided with gland 2, fixing with safetied pin 3 between the stiffening ring of this gland 2 and outer sleeve 6, label 9 is reinforcement gussets of outer sleeve 6.
Pipeline is subjected to thermal stretching when line temperature raises, at this moment inner sleeve 1 to-and-fro motion in outer sleeve 6 of joining and having piston with pipe, the O-ring seals 7 of groove installing v-ring 5 and twice is set on the inner sleeve, this two seals circle not only can play the effect of sealed medium pressure, the guidance tape 8 that is provided with at two ends makes better guidance quality between inner and outer sleeves, prevent off-centre and influence sealing effect, thereby formed the piston motion structure of a sealing.
The utility model adopts the flexible V-arrangement rubber seal of wide lip sealing configuration, is to utilize the hydrodynamic seal principle to reach reliable sealing effect. and Maximum operating pressure can reach 50Mpa, and rubber part adopts the corrosion-resistant better polychlorostyrene ether rubber of heatproof to make.Another outstanding characteristics of the present utility model are, fix with safetied pin 3 between the stiffening ring of gland 2 and outer sleeve 6, bearing the hydraulic thrust of pipeline, so can fully phase out fixed bearing selecting for use on the pipeline of the present utility model.On inner sleeve and anticreep shoulder, all be provided with retaining soil and phreatic seal ring in addition, prevent built on stilts and when burying ground introduced contaminants underground water to the destructions such as corrosion of sealing surface, effectively guaranteed the work that the utility model is safe and reliable, both reduced engineering cost, and also improved working life and reduced the engineering maintenance expense simultaneously.
Claims (1)
1. novel sleeve expansion joint, include inner sleeve, outer sleeve, seal ring, it is characterized in that packing in the inner sleeve of outer sleeve inside and have piston, inner sleeve is provided with groove, installing v-ring and O-ring seals in this groove, the movable end of inner sleeve is provided with guidance tape and pilot seal circle, enters at the inner sleeve end on the part of outer sleeve and also is provided with gland, fixes with safetied pin between the stiffening ring of this gland and outer sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620153568 CN200993278Y (en) | 2006-12-08 | 2006-12-08 | Sleeve compensator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620153568 CN200993278Y (en) | 2006-12-08 | 2006-12-08 | Sleeve compensator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993278Y true CN200993278Y (en) | 2007-12-19 |
Family
ID=38946352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620153568 Expired - Fee Related CN200993278Y (en) | 2006-12-08 | 2006-12-08 | Sleeve compensator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993278Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457176A (en) * | 2020-05-04 | 2020-07-28 | 海辉科技(太原)有限公司 | Pipeline connecting and sealing device for conveying fluid |
| CN111998149A (en) * | 2020-09-20 | 2020-11-27 | 海辉科技(太原)有限公司 | Pressure pipeline connecting and sealing device for conveying fluid |
-
2006
- 2006-12-08 CN CN 200620153568 patent/CN200993278Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111457176A (en) * | 2020-05-04 | 2020-07-28 | 海辉科技(太原)有限公司 | Pipeline connecting and sealing device for conveying fluid |
| CN111998149A (en) * | 2020-09-20 | 2020-11-27 | 海辉科技(太原)有限公司 | Pressure pipeline connecting and sealing device for conveying fluid |
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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: 20071219 Termination date: 20100108 |