CN203258249U - Nylon pipeline expansion joint - Google Patents
Nylon pipeline expansion joint Download PDFInfo
- Publication number
- CN203258249U CN203258249U CN 201320256162 CN201320256162U CN203258249U CN 203258249 U CN203258249 U CN 203258249U CN 201320256162 CN201320256162 CN 201320256162 CN 201320256162 U CN201320256162 U CN 201320256162U CN 203258249 U CN203258249 U CN 203258249U
- Authority
- CN
- China
- Prior art keywords
- adapter sleeve
- external diameter
- ring
- groove
- casing pipe
- 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
Links
Images
Landscapes
- Joints Allowing Movement (AREA)
Abstract
The utility model relates to a nylon pipeline expansion joint which comprises a hoop joint, a connection casing pipe, a flexible casing pipe, an end cap, a thrust ring, a seal ring, fastening bolts and a plurality of positioning bolts. According to the nylon pipeline expansion joint, flexible casing pipe external stepped holes are in clearance fit with connection casing pipe middle diameter stepped holes, therefore, the flexible casing pipe can slide in the connection casing pipe in the axial direction, and radial sealing in the process of sliding is achieved through the seal ring; radial positioning is achieved between two end cap faces of the thrust ring and the end cap face and between the connection faces of the middle diameter stepped holes and small diameter stepped holes in the connection casing pipe, and therefore the flexible casing pipe only does limited axial sliding in the connection casing pipe; meanwhile, limiting and positioning on circumferential positions of the hoop joint and the connection casing pipe are achieved through the positioning bolts. When the nylon pipeline expansion joint is installed in a long conveying pipeline, a nylon pipeline can stretch out and draw back freely, and therefore normal operation of the nylon pipeline will not be affected. The nylon pipeline expansion joint has the advantages of being simple in structure, convenient to install, stable in connection and sealing, and flexible.
Description
Technical field
The utility model relates to a kind of telescopic head, relates in particular to a kind ofly can along its expansion bend structure that elongates or shortens, belong to long distance pipeline interconnection technique field when strengthening the nylon long distance pipeline and expand with heat and contract with cold.
Background technique
Internal pressure strength is large owing to having, the high-low temperature resistant ability is strong, the corrosion-resisting wear-proof superior performance to strengthen nylon pipeline, and have easy for installation, transfer efficiency advantages of higher, thereby replace gradually steel pipe and being widely used in the conveyance conduit of all conglomeraties such as electric power, metallurgy, coal, oil, chemical industry, building materials, machinery.But nylon pipeline has its fatal shortcoming, that is: the linear expansion amount of expanding with heat and contract with cold is large, its swell increment is the several times of steel pipe, particularly in long distance pipeline, the creep accumulation that each section nylon tube is produced of expanding with heat and contract with cold is sizable, and the lighter occurs bending and deformation pipeline, and severe one makes the pipeline cracking, seriously have influence on the normal operation of pipeline, even lead to a disaster.Therefore solving chance thermal stretching, the cold contraction problem of chance of nylon pipeline, is that can nylon pipeline replace steel pipe fully and guarantee the normally key point of operation.
Summary of the invention
The purpose of this utility model is to provide a kind of nylon pipeline expansion joint, solves pipe bending distortion and problem of Cracking that long defeated nylon pipeline produces because expanding with heat and contract with cold.
To achieve these goals, the utility model Bian gets following technological scheme and implements: a kind of nylon pipeline expansion joint, comprise thimble connector, adapter sleeve, telescopic tube, end cap, thrust ring, seal ring, clamping bolt, holding down bolt, also comprise on the external diameter of connecting end the nylon pipeline with draw-in groove in actual the use, be provided with the twice snap ring in the card complex hole of described thimble connector, wherein one snap ring is for the ring-type draw-in groove on the engaging nylon pipeline, another road snap ring is used for the ring-type draw-in groove on the engaging telescopic tube, it is characterized in that:
The outside of described thimble connector is provided with many positioning holes;
The inside of described adapter sleeve is provided with large footpath, central diameter and three grades of step holes of path successively, and is provided with at least a circular groove in the central diameter step hole;
External diameter one end of described adapter sleeve is provided with flange, and flange is provided with some uniform bolts hole, and the external diameter the other end is consistent with the external diameter of nylon pipeline, and also is provided with the ring-type draw-in groove on the external diameter;
Described telescopic tube is straight-tube shape, its external diameter one splaying is engaged in the central diameter step hole of adapter sleeve, the stage casing falls in the large footpath step hole of adapter sleeve, the other end stretches out outside the adapter sleeve, and the external diameter of external part is provided with the ring-type draw-in groove, and the stage casing external diameter that falls in the step hole of the large footpath of adapter sleeve is provided with the thrust groove;
Described end cap is provided with some bolts hole, and its flange by some clamping bolts and adapter sleeve one end fixes, and is Spielpassung between the external diameter of the endoporus of end cap and telescopic tube;
Described thrust ring places in the thrust groove on the external diameter of telescopic tube middle part, is Spielpassung between the large footpath step hole in the external diameter of thrust ring and the adapter sleeve;
Described seal ring is the Y type, and it places between the external diameter of seal groove in the adapter sleeve middle bench hole and telescopic tube;
Described holding down bolt is many, and an end of every bolt is by two nuts and tight on the flange and end cap of adapter sleeve, and the other end passes many positioning holes of thimble connector outside, and the nut anti-falling of screwing on.
The utility model can endwisely slip telescopic tube by the Spielpassung between telescopic tube one end external diameter and the adapter sleeve central diameter step hole in adapter sleeve, realize radial seal by seal ring in the slip; And by the central diameter step hole in thrust ring both ends of the surface and end cap face and the adapter sleeve and the axially locating between the junction surface between the path step hole, make telescopic tube in adapter sleeve, only do limited moving axially; Meanwhile also by many holding down bolts the circumferential position between thimble connector and the adapter sleeve is implemented the constraint location.The utility model is installed, nylon pipeline retractable and do not affect the normal operation of pipeline in long distance pipeline.
The utlity model has simple in structure, easy for installation, stable, the retractile advantage of connection sealing.
Description of drawings
Fig. 1 is main TV structure schematic representation of the present utility model;
Structural representation when Fig. 2 is in use pipeline generation of the utility model shrinkage state;
Structural representation when Fig. 3 is in use pipeline generation of the utility model heat expansion state.
In Fig. 1,2,3: 1 thimble connector, 2 holding down bolts, 3 telescopic tubes, 4 end caps, 5 clamping bolts, 6 adapter sleeves, 7 thrust rings, 8 seal rings, 9 and 9 ' nylon pipeline.
Embodiment
As shown in Figure 1, the outside of thimble connector 1 is provided with many positioning holes; Be provided with the twice snap ring in the card complex hole of thimble connector 1, wherein one snap ring is used for engaging nylon pipeline 9 ', and another road snap ring is used for engaging telescopic tube 3; The inside of adapter sleeve 6 is provided with large footpath, central diameter and three grades of step holes of path successively, and is provided with at least a circular groove in the central diameter step hole; External diameter one end of adapter sleeve 6 is provided with flange, and flange is provided with some uniform bolts hole, and the external diameter the other end is consistent with the external diameter of nylon pipeline 9 and 9 '; Telescopic tube 3 is straight-tube shape, its external diameter one splaying is engaged in the central diameter step hole of adapter sleeve 6, the stage casing falls in the large footpath step hole of adapter sleeve 3, the other end stretches out outside the adapter sleeve 3, and the external diameter of external part is provided with the ring-type draw-in groove, and the stage casing external diameter that falls in the adapter sleeve 3 large footpath step holes is provided with the thrust groove; End cap 4 is provided with some bolts hole, and it fixes by the flange of some clamping bolts 5 with adapter sleeve 6 one ends, and is Spielpassung between the external diameter of the endoporus of end cap 4 and telescopic tube 3; Thrust ring 7 places in the thrust groove on the telescopic tube 3 middle part external diameters, is Spielpassung between the large footpath step hole in the external diameter of thrust ring 7 and the adapter sleeve 6; Seal ring 8 is the Y type, and it places between the external diameter of seal groove in the adapter sleeve 6 middle bench holes and telescopic tube 3; Holding down bolt 2 is 4, and an end of every bolt is by two nuts and tight on the flange and end cap 4 of adapter sleeve 6, and the other end passes many positioning holes of thimble connector 1 outside, and the nut anti-falling of screwing on.
In the practice, five degrees of freedom in the telescopic tube 3 obtain restriction, that is: by the external diameter of telescopic tube 3 one ends and the Spielpassung between the adapter sleeve 6 central diameter step holes, limited telescopic tube 3 radially two degrees of freedom and rotate in two degrees of freedom; By the draw-in groove on the engaging of the snap ring on the thimble connector 1 telescopic tube 3 one end external diameters, and pass four positioning holes on the jointing clip joint 1 by four holding down bolts 2, limited the one degree of freedom that telescopic tube 3 rotates around axis, and the one degree of freedom that telescopic tube 3 moves vertically is not limited, and the utility model has used this degrees of freedom of not limit just, realized that telescopic tube 3 can be free to slide in adapter sleeve 6, and the interior central diameter step hole of the end face by thrust ring 7 both ends of the surface and end cap 4 and adapter sleeve 6 and the axially locating between the junction surface between the path step hole, make telescopic tube 3 in adapter sleeve 6, only do limited endwisely slipping, and in sliding process, realize radial seal by seal ring 8, guaranteed that the nylon pipeline 9 and 9 ' in the long distance pipeline is in the chance thermal stretching, meet under the short state of shrinkage retractable and do not affect the normal operation of pipeline.
Claims (2)
1. nylon pipeline expansion joint, comprise thimble connector, adapter sleeve, telescopic tube, end cap, thrust ring, seal ring, clamping bolt, holding down bolt, also comprise on the external diameter of connecting end the nylon pipeline with draw-in groove in actual the use, be provided with the twice snap ring in the card complex hole of described thimble connector, wherein one snap ring is for the ring-type draw-in groove on the engaging nylon pipeline, another road snap ring is used for the ring-type draw-in groove on the engaging telescopic tube, it is characterized in that:
The inside of described adapter sleeve is provided with large footpath, central diameter and three grades of step holes of path successively, and is provided with at least a circular groove in the central diameter step hole;
External diameter one end of described adapter sleeve is provided with flange, and flange is provided with some uniform bolts hole, and the external diameter the other end is consistent with the external diameter of nylon pipeline, and also is provided with the ring-type draw-in groove on the external diameter;
Described telescopic tube is straight-tube shape, its external diameter one splaying is engaged in the central diameter step hole of adapter sleeve, the stage casing falls in the large footpath step hole of adapter sleeve, the other end stretches out outside the adapter sleeve, and the external diameter of external part is provided with the ring-type draw-in groove, and the stage casing external diameter that falls in the step hole of the large footpath of adapter sleeve is provided with the thrust groove;
Described end cap is provided with some bolts hole, and its flange by some clamping bolts and adapter sleeve one end fixes, and is Spielpassung between the external diameter of the endoporus of end cap and telescopic tube;
Described thrust ring places in the thrust groove on the external diameter of telescopic tube middle part, is Spielpassung between the large footpath step hole in the external diameter of thrust ring and the adapter sleeve;
Described seal ring is the Y type, and it places between the external diameter of seal groove in the adapter sleeve middle bench hole and telescopic tube.
2. a kind of nylon pipeline expansion joint as claimed in claim 1 is characterized in that
The outside of described thimble connector is provided with many axially locating holes;
Described holding down bolt is many, and an end of every bolt is by two nuts and tight on the flange and end cap of adapter sleeve, and the other end passes many positioning holes of thimble connector outside, and the nut anti-falling of screwing on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320256162 CN203258249U (en) | 2013-05-13 | 2013-05-13 | Nylon pipeline expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320256162 CN203258249U (en) | 2013-05-13 | 2013-05-13 | Nylon pipeline expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203258249U true CN203258249U (en) | 2013-10-30 |
Family
ID=49470812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320256162 Expired - Fee Related CN203258249U (en) | 2013-05-13 | 2013-05-13 | Nylon pipeline expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203258249U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109812635A (en) * | 2019-03-07 | 2019-05-28 | 中国石油天然气股份有限公司 | oil collecting pipeline |
| CN110067593A (en) * | 2019-06-05 | 2019-07-30 | 中交一公局海威工程建设有限公司 | tunnel escape pipeline |
| CN112020300A (en) * | 2018-04-23 | 2020-12-01 | 意玛克股份公司 | Blower fan |
-
2013
- 2013-05-13 CN CN 201320256162 patent/CN203258249U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112020300A (en) * | 2018-04-23 | 2020-12-01 | 意玛克股份公司 | Blower fan |
| CN112020300B (en) * | 2018-04-23 | 2022-05-10 | 意玛克股份公司 | Blower fan |
| CN109812635A (en) * | 2019-03-07 | 2019-05-28 | 中国石油天然气股份有限公司 | oil collecting pipeline |
| CN110067593A (en) * | 2019-06-05 | 2019-07-30 | 中交一公局海威工程建设有限公司 | tunnel escape pipeline |
| CN110067593B (en) * | 2019-06-05 | 2024-03-22 | 中交一公局海威工程建设有限公司 | Tunnel escape pipeline |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203258249U (en) | Nylon pipeline expansion joint | |
| CN101561067A (en) | Hose connecting method and connector arrangement | |
| CN103307387A (en) | Redundant connector for nylon pipeline | |
| CN204704510U (en) | Compression locking hoop formula fluid delivery pipeline Quick Connect Kit | |
| CN103075592B (en) | Self-adaptive pipeline connector of machine | |
| CN104482337B (en) | Compression locking hoop formula fluid delivery pipeline Quick Connect Kit | |
| CN204164530U (en) | A kind of buckling-type pipe connector | |
| CN102313091A (en) | Pipeline quick service sleeve joint | |
| CN202852307U (en) | Sleeve socket type compensator | |
| CN103292094A (en) | Diameter variable glass fiber pipeline | |
| CN103291995B (en) | A kind of scalable Ventilating valve | |
| CN201517677U (en) | Pipeline joint | |
| CN202220917U (en) | Pipeline connecting device | |
| CN202182270U (en) | Flange type internal expansion connecting structure for steel plastic composite pipe | |
| CN104696634A (en) | Dual-seal socket and spigot type flexible connection structure for large-diameter spiral welded steel pipes | |
| CN203189911U (en) | Pipeline rapid connector | |
| CN204267977U (en) | A kind of seal for pipe joints plug | |
| CN202769154U (en) | Steel-plastic transition connector | |
| CN203258235U (en) | Clamp connector for steel framework reinforced nylon pipeline | |
| CN202972273U (en) | Plug-in type plumbing pipe fitting connecting structure with outer sleeve chuck | |
| CN102322554A (en) | Medium-pressure steel wire reinforced plastic pipeline and pipe fitting connecting method | |
| CN105546242A (en) | Stainless steel pipe connecting piece | |
| CN201680082U (en) | Expandable duplex metal pipe for composite pipe | |
| CN201228831Y (en) | Universal joint compensating mechanism for pressure conduit | |
| CN103292107A (en) | Rapid connection method for steel frame reinforced nylon pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 |