CN2842132Y - Pipeline connection joint - Google Patents
Pipeline connection joint Download PDFInfo
- Publication number
- CN2842132Y CN2842132Y CN 200520065399 CN200520065399U CN2842132Y CN 2842132 Y CN2842132 Y CN 2842132Y CN 200520065399 CN200520065399 CN 200520065399 CN 200520065399 U CN200520065399 U CN 200520065399U CN 2842132 Y CN2842132 Y CN 2842132Y
- Authority
- CN
- China
- Prior art keywords
- periphery
- female joint
- runddichtringo
- joint
- kink nut
- 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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- Joints Allowing Movement (AREA)
Abstract
The utility model relates to a pipeline connecting joint which comprises a female joint and a male joint, wherein a double-layer sealing structure is arranged between the female joint and the male joint, and the double-layer sealing structure comprises an O-shaped sealing ring arranged on the periphery of the female joint and an O-shaped sealing ring arranged on the periphery of the male joint. Compared with the existing technical scheme, the utility model has the advantages of simple operation, high sealing property, simple structure and easy realization.
Description
Technical field
The utility model relates to a kind of pipe joint, and specifically a kind of have double-layer sealing structure, a pipeline connecting head easy and simple to handle.
Background technique
Being used in connection between the tube and tube in refrigerating machine field at present adopts O type circle list sealing socket joint to connect with the lap joint flange Placement mostly or adopts pipe joint conical surface seal mode.O type circle list sealing socket joint Placement is undesirable to the high high-pressure liquid sealing effect of leak-down rate; The pipeline connection part that adopts this sealing means modes of welding that adopt when tube and tube butt joint operation fuse the junction more, are easy to generate weld seam during welding, and cause fluid in the pipeline to external leakage.Lap joint flange Placement complicated operation and expense height.Pipe joint conical surface seal mode is perishable because of the conical surface, is not suitable for high-pressure liquid and uses having under the state of vibration.Therefore be necessary to develop a kind of simple to operate, sealability height, the assembling pipe joint of wide accommodation.
The model utility content
The purpose of this utility model provides a kind of have double-layer sealing structure, pipe coupling simple to operation.
Requirement in order to achieve the above object, the utility model adopt following scheme to realize:
A kind of pipeline connecting head, comprise a female joint and a tool joint pin, be provided with double-layer sealing structure between female joint and the tool joint pin, described double-layer sealing structure comprises the O RunddichtringO that is arranged on the female joint periphery and is arranged on O RunddichtringO on the tool joint pin periphery.
The O RunddichtringO end internal diameter of female joint described in the utility model is slightly larger than the O RunddichtringO end external diameter of tool joint pin.Be with a kink nut that can rotate flexibly in the O of female joint RunddichtringO end periphery; Be provided with the thread bush corresponding with the kink nut in the O of tool joint pin RunddichtringO end periphery, the thread bush periphery is provided with the screw thread corresponding with the kink nut thread.Described kink nut inner ring is provided with step, with female joint periphery that the kink nut connects be provided with one with the kink nut in the corresponding limited step of step.
The utility model has simple to operate than the advantage of prior art scheme, the sealability height installs easy easy realization.
Description of drawings
Accompanying drawing 1 is the utility model structural representation; Accompanying drawing 2 is for originally being to cooperate the back structural representation with novel tool joint pin and female joint.
Embodiment
For the ease of understanding, with specific embodiment structural principle of the present utility model is further described in detail below in conjunction with accompanying drawing:
As shown in Figure 1, female joint 1 end is provided with a step, the spacing kink nut 2 that can rotate flexibly that in female joint 1, is with by step, leave certain space between kink nut 2 internal diameters and female joint 1 external diameter, its inwall is provided with screw thread, is provided with two O RunddichtringOs 6 in female joint 1 periphery.The quantity of O RunddichtringO 6 can increase as required.
Again as shown in Figure 2, when tool joint pin 5 with after female joint 1 is docked, interfix by kink nut 2 screwing on thread bush 3.
Claims (4)
1. pipeline connecting head, comprise a female joint and a tool joint pin, be provided with sealing configuration between female joint and the tool joint pin, it is characterized in that: described sealing configuration is a double-layer sealing structure, and this double-layer sealing structure comprises the O RunddichtringO that is arranged on the female joint periphery and is arranged on O RunddichtringO on the tool joint pin periphery.
2. pipeline connecting head according to claim 1 is characterized in that: the O RunddichtringO end internal diameter of female joint is slightly larger than the O RunddichtringO end external diameter of tool joint pin.
3. pipeline connecting head according to claim 2 is characterized in that: be with a kink nut that can rotate flexibly in the O of female joint RunddichtringO end periphery; Be provided with the thread bush corresponding with the kink nut in the O of tool joint pin RunddichtringO end periphery, the thread bush periphery is provided with the screw thread corresponding with the kink nut thread.
4. pipeline connecting head according to claim 3 is characterized in that: described kink nut inner ring is provided with step, with female joint periphery that the kink nut connects be provided with one with the kink nut in the corresponding limited step of step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520065399 CN2842132Y (en) | 2005-09-30 | 2005-09-30 | Pipeline connection joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520065399 CN2842132Y (en) | 2005-09-30 | 2005-09-30 | Pipeline connection joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2842132Y true CN2842132Y (en) | 2006-11-29 |
Family
ID=37446014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520065399 Expired - Fee Related CN2842132Y (en) | 2005-09-30 | 2005-09-30 | Pipeline connection joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2842132Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223933A (en) * | 2018-03-19 | 2018-06-29 | 尹财富 | Pipe couplings |
| CN108591646A (en) * | 2018-07-20 | 2018-09-28 | 中冶南方工程技术有限公司 | A kind of U-shaped double-walled Spigot-and-socket pipe joint and its installation method |
| CN110887603A (en) * | 2019-11-11 | 2020-03-17 | 合肥晶弘电器有限公司 | Vacuum degree monitoring device |
-
2005
- 2005-09-30 CN CN 200520065399 patent/CN2842132Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108223933A (en) * | 2018-03-19 | 2018-06-29 | 尹财富 | Pipe couplings |
| CN108591646A (en) * | 2018-07-20 | 2018-09-28 | 中冶南方工程技术有限公司 | A kind of U-shaped double-walled Spigot-and-socket pipe joint and its installation method |
| CN110887603A (en) * | 2019-11-11 | 2020-03-17 | 合肥晶弘电器有限公司 | Vacuum degree monitoring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |