CN203517064U - Pipeline connecting device - Google Patents
Pipeline connecting device Download PDFInfo
- Publication number
- CN203517064U CN203517064U CN201320586275.9U CN201320586275U CN203517064U CN 203517064 U CN203517064 U CN 203517064U CN 201320586275 U CN201320586275 U CN 201320586275U CN 203517064 U CN203517064 U CN 203517064U
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- CN
- China
- Prior art keywords
- connecting piece
- fixed connecting
- bore
- central
- hole
- 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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Abstract
The utility model discloses a pipeline connecting device and belongs to the technical field of pipeline connecting. The pipeline connecting device comprises a sealing body, a fixed connecting pipe and a movable connecting piece. The fixed connecting piece is provided with a center through hole, the peripheral surface of the fixed connecting piece comprises an external thread part and a hexagon nut part, and a first abutting shoulder is arranged on the portion, close to the hexagon nut part end, in the center through hole. The peripheral surface of the movable connecting piece is in a hexagonal cylinder shape, the movable connecting piece is provided with a center through hole, a second abutting shoulder is arranged at one end of the center through hole, and internal threads are arranged in the center through hole and are matched with the external threads of the fixed connecting piece. The sealing body is a tubular sealing ferrule, a plurality of annular protrusions are arranged on the inner hole wall of the sealing ferrule, the sealing ferrule is embedded into the center through hole of the fixed connecting piece so that the outer circle surface of the sealing ferrule can abut upon the inner hole wall of the center through hole of the fixed connecting piece, the distance between the first abutting shoulder and the other end of the center through hole is smaller than the length of the tubular sealing ferrule, one end of the sealing ferrule abuts upon the end face of the first abutting shoulder, and the other end of the sealing ferrule stretches out of the center through hole of the fixed connecting piece.
Description
Technical field
The utility model belongs to pipeline interconnection technique field, especially relevant with a kind of pipeline connecting device.
Background technique
Connection between existing low pressure metal pipe adopts welded flange to connect conventionally, although but such Placement sealing effect is relatively good, but conventionally in connection procedure, exist inconvenient operation, flange to take up room greatly and the not high defect of efficiency, therefore when low pressure metal pipe connects, can design easy to operate, the pipeline connecting device that joint efficiency is high.
Model utility content
The purpose of this utility model is intended to overcome the above-mentioned defect that connects existence between existing low pressure metal pipe, provides a kind of attended operation convenient and swift, take up room little, and the pipeline connecting device of good airproof performance.
For this reason, the utility model is by the following technical solutions: a kind of pipeline connecting device, comprise seal, fixed connecting piece and active connection, it is characterized in that, described fixed connecting piece is provided with central through bore, fixed connecting piece outer circumferential face comprises male thread portion and hexagon nut part, wherein in the central through bore near hexagon nut part one end, be provided with the first shoulder, described active connection is provided with central through bore, this central through bore one end is provided with the second shoulder, in central through bore, be provided with internal thread, internal thread coordinates with the outside thread of described fixed connecting piece, active connection outer circumferential face is Hexagon cylinder, described seal is tubulose sealing ring, on the inner hole wall of sealing ring, be provided with a plurality of annular protrusions, sealing ring is flush-mounted in the central through bore of described fixed connecting piece, the periphery of sealing ring is posted by the central through bore inner hole wall of described fixed connecting piece, the first shoulder is less than the length of described tubulose sealing ring to the distance of central through bore the other end end, sealing ring one end is resisted against on described the first shoulder end face, the other end stretches out outside the central through bore of fixed connecting piece.
When the utility model is used, two connecting tube end mouths of pipe that needs are connected insert from sealing ring two ends relatively respectively, annular protrusion on sealing ring inner hole wall is posted by connecting tube outer tube wall, fixed connecting piece is set on a connecting tube, active connection is set on another root connecting tube, the helical thread portion of fixed connecting piece is inserted between active connection tapped hole and sealing ring outer wall, sealing ring two ends are resisted against respectively on the first shoulder end face of fixed connecting piece and the second shoulder end face of active connection, when fixed connecting piece and active connection screw thread screw, make the first shoulder end face and the second end face shoulder at sealing ring two ends carry out the application of force to sealing ring, sealing ring is carried out to axial compression, radial expansion, annular protrusion on sealing ring inner hole wall is closely posted by the outer tube wall of two connecting tubes, reach sealing effect, and fixed connecting piece and active connection are threaded connection, operation is very easy.
Use the utility model can reach following beneficial effect: on connecting tube, to be set with sealing ring, by fixed connecting piece, be threaded with active connection, sealing ring is carried out to axial compression, radial expansion, reach effective sealing effect, fastness is good, take up room little, and fixed connecting piece and active connection outer circumferential face all arrange Hexagon side face, very convenient during operation.
Accompanying drawing explanation
Fig. 1 is the utility model perspective view.
Fig. 2 is the utility model axial section schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail.
As depicted in figs. 1 and 2, the utility model comprises seal, fixed connecting piece 2 and active connection 3, fixed connecting piece 2 is provided with central through bore, fixed connecting piece 2 outer circumferential faces comprise male thread portion and hexagon nut part, wherein in the central through bore near hexagon nut part one end, be provided with the first shoulder 5, active connection 3 is provided with central through bore, this central through bore one end is provided with the second shoulder 8, in central through bore, be provided with internal thread 7, internal thread 7 coordinates with the outside thread 6 of fixed connecting piece 2, active connection 3 outer circumferential faces are Hexagon cylinder, described seal is tubulose sealing ring 4, on the inner hole wall of sealing ring 4, be provided with a plurality of annular protrusions, sealing ring 4 is flush-mounted in the central through bore of fixed connecting piece 2, the periphery of sealing ring 4 is posted by the central through bore inner hole wall of fixed connecting piece 2, the first shoulder 5 is less than the length of described tubulose sealing ring 4 to the distance of central through bore the other end end, sealing ring 4 one end are resisted against on described the first shoulder 5 end faces, the other end stretches out outside the central through bore of fixed connecting piece 2.
When the utility model is used, two connecting tubes, the 1 end mouth of pipe that needs are connected inserts from sealing ring 4 two ends relatively respectively, annular protrusion on sealing ring 4 inner hole walls is posted by connecting tube 1 outer tube wall, fixed connecting piece 2 is set on a connecting tube 1, active connection 3 is set on another root connecting tube 1, the helical thread portion of fixed connecting piece 2 is inserted between active connection 3 tapped holes and sealing ring 4 outer walls, sealing ring 4 two ends are resisted against respectively on the first shoulder 5 end faces of fixed connecting piece 2 and the second shoulder 8 end faces of active connection 3, when fixed connecting piece 2 and active connection 3 screw threads screw, make the first shoulder 5 end faces and the second end face shoulder at sealing ring 4 two ends carry out the application of force to sealing ring 4, sealing ring 4 is carried out to axial compression, radial expansion, annular protrusion on sealing ring 4 inner hole walls is closely posted by the outer tube wall of two connecting tubes 1, reach sealing effect, and fixed connecting piece 2 and active connection 3 are threaded connection, operation is very easy.
Claims (1)
1. a pipeline connecting device, comprise seal, fixed connecting piece (2) and active connection (3), it is characterized in that: described fixed connecting piece (2) is provided with central through bore, fixed connecting piece (2) outer circumferential face comprises male thread portion and hexagon nut part, wherein in the central through bore near hexagon nut part one end, be provided with the first shoulder (5), active connection (3) is provided with central through bore, this central through bore one end is provided with the second shoulder (8), in central through bore, be provided with internal thread (7), internal thread (7) coordinates with the outside thread (6) of fixed connecting piece (2), active connection (3) outer circumferential face is Hexagon cylinder, described seal is tubulose sealing ring (4), on the inner hole wall of sealing ring (4), be provided with a plurality of annular protrusions, sealing ring (4) is flush-mounted in the central through bore of fixed connecting piece (2), the periphery of sealing ring (4) is posted by the central through bore inner hole wall of fixed connecting piece (2), the first shoulder (5) is less than the length of described tubulose sealing ring (4) to the distance of central through bore the other end end, sealing ring (4) one end is resisted against on described the first shoulder (5) end face, the other end stretches out outside the central through bore of fixed connecting piece (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586275.9U CN203517064U (en) | 2013-09-22 | 2013-09-22 | Pipeline connecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320586275.9U CN203517064U (en) | 2013-09-22 | 2013-09-22 | Pipeline connecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203517064U true CN203517064U (en) | 2014-04-02 |
Family
ID=50375995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320586275.9U Expired - Fee Related CN203517064U (en) | 2013-09-22 | 2013-09-22 | Pipeline connecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203517064U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714017A (en) * | 2016-03-31 | 2016-06-29 | 本钢板材股份有限公司 | Pipe quick-change connector of wire feeder |
| CN106678462A (en) * | 2016-12-09 | 2017-05-17 | 吉林市城通科技有限公司 | Two-flap locking tube joint |
-
2013
- 2013-09-22 CN CN201320586275.9U patent/CN203517064U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105714017A (en) * | 2016-03-31 | 2016-06-29 | 本钢板材股份有限公司 | Pipe quick-change connector of wire feeder |
| CN106678462A (en) * | 2016-12-09 | 2017-05-17 | 吉林市城通科技有限公司 | Two-flap locking tube joint |
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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 |
Granted publication date: 20140402 Termination date: 20140922 |
|
| EXPY | Termination of patent right or utility model |