CN2842132Y - Pipeline connection joint - Google Patents

Pipeline connection joint Download PDF

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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
joint
periphery
runddichtringo
female joint
pipeline
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
Application number
CN 200520065399
Other languages
Chinese (zh)
Inventor
鲁益军
缪立峰
林细猛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL Corp
Original Assignee
TCL Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TCL Corp filed Critical TCL Corp
Priority to CN 200520065399 priority Critical patent/CN2842132Y/en
Application granted granted Critical
Publication of CN2842132Y publication Critical patent/CN2842132Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

A kind of pipeline connecting head
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.
Tool joint pin 5 and female joint 1 corresponding setting, its external diameter is slightly less than female joint 1 internal diameter, and periphery is provided with two O RunddichtringOs 4, after female joint 1 endoporus is inserted in the tool joint pin 5 that is with the O RunddichtringO, between O RunddichtringO 4 and female joint 1 inwall is interference fit, has the effect of sealing.Also be provided with the thread bush 3 corresponding in the end of tool joint pin 5 periphery with kink nut 2, thread bush 3 is fixed in the tool joint pin 5, and can be with tool joint pin 5 integral productions and form, its periphery is provided with and the corresponding screw thread of kink nut 2 screw threads, be convenient to the mutual locking of tool joint pin 5 and female joint 1, thread bush 3 internal diameters are slightly larger than female joint 1 external diameter, when the female joint 1 that is with the O RunddichtringO is inserted, between O RunddichtringO 6 and thread bush 3 inwalls is interference fit, makes this pipe coupling have the double-layer seal effect.O RunddichtringO quantity in the tool joint pin 5 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.
CN 200520065399 2005-09-30 2005-09-30 Pipeline connection joint Expired - Fee Related CN2842132Y (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee
C19 Lapse of patent right due to non-payment of the annual fee