CN200965126Y - Telescoping device - Google Patents
Telescoping device Download PDFInfo
- Publication number
- CN200965126Y CN200965126Y CN 200620149697 CN200620149697U CN200965126Y CN 200965126 Y CN200965126 Y CN 200965126Y CN 200620149697 CN200620149697 CN 200620149697 CN 200620149697 U CN200620149697 U CN 200620149697U CN 200965126 Y CN200965126 Y CN 200965126Y
- Authority
- CN
- China
- Prior art keywords
- interior cover
- sleeve
- expansion device
- seal ring
- internal 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 - Lifetime
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- Pipe Accessories (AREA)
Abstract
The utility model relates to a retractor device which is mainly used in the technical field of the pipe line, comprising an internal sleeve (1), a seal ring (2), a sleeve (3), and an internal sleeve (4). The utility model is characterized in that the internal sleeve (1) with planters and the internal sleeve (4) are processed in the axial direction; the internal sleeve (1) is connected with the sleeve (3); the internal sleeve (4) is inserted along the planters of the internal sleeve (1) in a intercross manner; a seal groove is processed on corresponding surface of the sliding internal sleeve (4); the seal ring (2) is arranged. When temperature changes, pipeline connected with the retractor device transforms and the internal sleeve (4) can slide inside the sleeve (3) to compensate the extension of the pipeline, meanwhile, the seal ring (2) can assure the retractor device of sealing to avoid any water seepage and gas leakage of the pipeline.
Description
Technical field
The utility model expansion device is applied to the strength pipe-line transportation system.
Background technique
In the strength pipe-line transportation system, owing to the variation, particularly variation of temperature of environment, cause the phenomenon of expanding with heat and contract with cold of buried pipeline, in the pipeline of rigid joint,, cause pipe bending, reverse because its amount of deformation can't compensate; In the flange connection place, because internal stress is excessive, cause attachment bolt to break, or flange connection group sealing part draw back, cause closed conduit water inlet or gas leakage.
Summary of the invention
The utility model expansion device absorption compensation the amount of deformation of pipeline when temperature variation, avoided because internal stress causes the generation of torsional deflection, water inlet and the gas leak phenomenon of pipeline.
The technological scheme that the utility model is implemented: described expansion device is made up of a sleeve, seal ring and interior cover 1 and the interior cover 2 of processing identical equal portions flower groove vertically, in cover 1 be connected with sleeve, interior cover 2 inserts along the colored grooves intersection of interior cover 1, seal groove of matching surface processing at sliding inner sleeve 2, a seal ring is installed, when temperature variation, the pipeline that is connected with expansion device produces amount of deformation, interior cover 2 just can slide in sleeve, extending amount with compensation pipes, simultaneously, seal ring can guarantee that expansion device is airtight, can not cause pipe water and gas leakage.
Description of drawings
Accompanying drawing is the structural representation of expansion device when being pushed into beeline.
Among the figure: 1, interior cover, 2, seal ring, 3, sleeve, 4, interior cover
Embodiment
Described expansion device is by a sleeve (3), seal ring (2) and processing vertically spend the interior cover (1) of groove and interior cover (4) to form, interior cover (1) is connected with sleeve (3), interior cover (4) inserts along the colored groove intersection of interior cover (1), matching surface processing seal groove at sliding inner sleeve (4), seal ring (2) is installed, when temperature variation, the pipeline that is connected with expansion device produces amount of deformation, interior cover (4) just can slide in sleeve (3), extending amount with compensation pipes, simultaneously, seal ring (2) can guarantee that expansion device is airtight, can not cause pipe water and gas leakage.
Claims (4)
1, a kind of expansion device of model utility, comprise interior cover (1), seal ring (2), sleeve (3), interior cover (4), it is characterized in that: the interior cover (1) and the interior cover (4) of groove spent in processing vertically, interior cover (1) is connected with sleeve (3), interior cover (4) inserts along the colored groove intersection of interior cover (1), seal groove of matching surface processing at sliding inner sleeve (4), a seal ring (2) is installed, when temperature variation, the pipeline that is connected with expansion device produces amount of deformation, and interior cover (4) just can slide in sleeve (3), extending amount with compensation pipes, simultaneously, seal ring (2) can guarantee that expansion device is airtight, can not cause pipe water and gas leakage.
2, expansion device according to claim 1 is characterized in that: interior cover (1) connects with sleeve (3), and interior cover (4) is free to slide in sleeve, also can connect with sleeve (3) by interior cover (4), and interior cover (1) is free to slide in sleeve (3).
3, expansion device according to claim 1 is characterized in that: being connected and can welding between interior cover (1) and the sleeve (3), also can adopt bolt to connect or alternate manner connects.
4, expansion device according to claim 1 is characterized in that: the matching surface at interior cover (4) is processed one or more seal grooves, also can process one or more seal grooves at the matching surface of interior cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620149697 CN200965126Y (en) | 2006-10-12 | 2006-10-12 | Telescoping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620149697 CN200965126Y (en) | 2006-10-12 | 2006-10-12 | Telescoping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200965126Y true CN200965126Y (en) | 2007-10-24 |
Family
ID=38869143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620149697 Expired - Lifetime CN200965126Y (en) | 2006-10-12 | 2006-10-12 | Telescoping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200965126Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696657A (en) * | 2015-02-16 | 2015-06-10 | 中铁七局集团第一工程有限公司 | Active-passive double-control linear smoothbore type pipeline compensator |
| CN108469440A (en) * | 2018-03-29 | 2018-08-31 | 江南大学 | A kind of detection device to sprayed product |
| CN108481276A (en) * | 2018-03-29 | 2018-09-04 | 江南大学 | A kind of adjustable integral type Working table |
| CN108542149A (en) * | 2018-03-29 | 2018-09-18 | 江南大学 | A kind of adjustable work table |
-
2006
- 2006-10-12 CN CN 200620149697 patent/CN200965126Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104696657A (en) * | 2015-02-16 | 2015-06-10 | 中铁七局集团第一工程有限公司 | Active-passive double-control linear smoothbore type pipeline compensator |
| CN108469440A (en) * | 2018-03-29 | 2018-08-31 | 江南大学 | A kind of detection device to sprayed product |
| CN108481276A (en) * | 2018-03-29 | 2018-09-04 | 江南大学 | A kind of adjustable integral type Working table |
| CN108542149A (en) * | 2018-03-29 | 2018-09-18 | 江南大学 | A kind of adjustable work table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: YINCHUAN EASTERN PNEUMATIC TRANSPORT EQUIPMENT CO. Free format text: FORMER OWNER: DONGFANG TRANSPORT APPARATUS CO., LTD., YINCHUAN CITY Effective date: 20140217 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140217 Address after: 750002, No. 6, Lunan Road, No. 15, West Road, Jinfeng hi tech Development Zone, the Ningxia Hui Autonomous Region, Yinchuan, No. 1 Patentee after: YINCHUAN DONGFANG PNEUMATIC TRANSPORT EQUIPMENT CO., LTD. Address before: 750002, Lunan, 6 hi tech Industrial Development Zone, the Ningxia Hui Autonomous Region, Yinchuan, Yinchuan Patentee before: Dongfang Transport Apparatus Co., Ltd., Yinchuan City |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Liu Li Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term |
Granted publication date: 20071024 |
|
| EXPY | Termination of patent right or utility model |