CN204345155U - A kind of slip joint - Google Patents

A kind of slip joint Download PDF

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Publication number
CN204345155U
CN204345155U CN201420735731.6U CN201420735731U CN204345155U CN 204345155 U CN204345155 U CN 204345155U CN 201420735731 U CN201420735731 U CN 201420735731U CN 204345155 U CN204345155 U CN 204345155U
Authority
CN
China
Prior art keywords
inner core
connecting cylinder
annular table
urceolus
slip joint
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
CN201420735731.6U
Other languages
Chinese (zh)
Inventor
李洪斌
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.)
All Get Profit Pipe Co Ltd In Chengdu
Original Assignee
All Get Profit Pipe Co Ltd In Chengdu
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 All Get Profit Pipe Co Ltd In Chengdu filed Critical All Get Profit Pipe Co Ltd In Chengdu
Priority to CN201420735731.6U priority Critical patent/CN204345155U/en
Application granted granted Critical
Publication of CN204345155U publication Critical patent/CN204345155U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a kind of slip joint, comprise inner core, urceolus, connecting cylinder and seal ring, the two ends of inner core arrange annular table outwardly, urceolus is arranged on the outside of inner core, and between two annular table of inner core, the two ends of urceolus are all connected with connecting cylinder, the two ends of connecting cylinder arrange inwardly outstanding annular table, the annular table inner diameter of connecting cylinder is less than the annular table outer diameter of inner core, and seal ring is arranged on connecting cylinder.The socket material of inner core adopts soft plastic, and its annular table material adopts hard plastic.The utility model is by the connecting cylinder of outside, urceolus two ends; achieve the axial shrinkage of slip joint; being set to of inner core provides temporary protection measure when urceolus breaks; liquid in pipeline can not be there is leak in a large number; the socket of inner core adopts soft plastic to improve the stressed degree of slip joint to different direction, and annular table adopts hard plastic in order to ensure the tightness be connected with connecting cylinder.

Description

A kind of slip joint
Technical field
The utility model relates to technical field of pipeline connection, in particular for the slip joint that plastic pipe connects.
Background technique
Plastic pipe is along with it is at the many advantages of aspect of performance, it is ageing-resistant, corrosion protection and course of conveying can avoid pipeline itself with the characteristic such as pollution of dissolved ions, plastic pipe is being produced and to be used as the application percentage of the delivery line of long distance in life more and more higher.
Plastic pipe, when the delivery line for long distance, needs to be coupled together by slip joint sectional for multiple independent pipeline.But because plastic pipe has larger thermal expansion coefficient, tens mitron roads after connection can because of the cold shrinkage and thermal expansion characteristic of plastics, the cold and hot change of weather, the axis of pipeline is made to produce serious contraction or expansion distortion, cause the connection part between tube and tube to deform and ftracture or depart from, thus cause leakage.In addition, due to the increase of the various facilities of Urban Underground, as subway, communication line, cable, water pipe etc., and the appearance of tall building, the probability that ground occurs to sink is also in increase, this also may cause body to tilt thereupon, the connection part between tube and tube or between pipe and inspection shaft is deformed and ftractures or depart from thus cause leakage.Therefore, the quality of the slip joint of connecting tube and pipeline becomes and affects the key factor of plastic pipe as the usability of delivery line.
Summary of the invention
The purpose of this utility model is to provide a kind of slip joint, realizes capable of expansion and contraction, ensures sealing when connecting, possesses temporary protection function when breaking simultaneously.
In order to achieve the above object, the utility model provides following technological scheme:
A kind of slip joint, comprise inner core, urceolus, connecting cylinder and seal ring, the two ends of inner core arrange annular table outwardly, urceolus is arranged on the outside of inner core, and between two annular table of inner core, the two ends of urceolus are all connected with connecting cylinder, the two ends of connecting cylinder arrange inwardly outstanding annular table, the annular table inner diameter of connecting cylinder is less than the annular table outer diameter of inner core, and seal ring is arranged on connecting cylinder.By the connecting cylinder of outside, urceolus two ends, achieve the axial shrinkage of slip joint, axial pressure can not be caused to slip joint and connected pipeline.Being set to of inner core provides temporary protection measure when urceolus breaks, and liquid in pipeline can not occur and leak in a large number.
Further, also comprise stiffener, stiffener is arranged on the outside of urceolus.Stiffener improves the radial strength of slip joint, when ground occurring and sinking, avoids the problem of the radial force deficiency occurred.
Further, the socket material of inner core adopts soft plastic, and its annular table material adopts hard plastic.Soft plastic improves the stressed degree of slip joint to different direction, and annular table adopts hard plastic in order to ensure the tightness be connected with connecting cylinder.
Further, the socket material of inner core is the one in TPU, TPE, TPR, TPV, CPE.
Beneficial effect of the present utility model is:
1) by the connecting cylinder of outside, urceolus two ends, achieve the axial shrinkage of slip joint, axial pressure can not be caused to slip joint and connected pipeline;
2) inner core be set to provide temporary protection measure when urceolus breaks, liquid in pipeline can not be there is and leak in a large number;
3) the socket material of inner core adopts soft plastic to improve the stressed degree of slip joint to different direction, and annular table adopts hard plastic in order to ensure the tightness be connected with connecting cylinder;
4) stiffener improves the radial strength of slip joint, when ground occurring and sinking, avoids the problem of the radial force deficiency occurred.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of embodiment 1;
Fig. 2 is the sectional view in A-A direction;
In figure, 1, urceolus, 2, inner core, 2.1, annular table, 3, connecting cylinder, 3.1, annular table, 4, stiffener, 5, seal ring.
Embodiment
Below in conjunction with accompanying drawing of the present utility model, be clearly and completely described the technical solution of the utility model, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Shown in Fig. 1-2, a kind of slip joint, comprises inner core, urceolus, connecting cylinder, seal ring and stiffener, and the two ends of inner core arrange annular table outwardly, and urceolus is arranged on the outside of inner core, and between two annular table of inner core.Being set to of inner core provides temporary protection measure when urceolus breaks, and liquid in pipeline can not occur and leak in a large number.The socket material of inner core adopts soft plastic, as the one in TPU, TPE, TPR, TPV or CPE.The annular table material of inner core adopts hard plastic, as polyethylene.Soft plastic improves the stressed degree of slip joint to different direction, and annular table adopts hard plastic in order to ensure the tightness be connected with connecting cylinder.
The two ends of urceolus are all connected with connecting cylinder, and the two ends of connecting cylinder arrange inwardly outstanding annular table, and the annular table inner diameter of connecting cylinder is less than the annular table outer diameter of inner core, make connecting cylinder can not from the landing of urceolus two ends.By the connecting cylinder of outside, urceolus two ends, achieve the axial shrinkage of slip joint, axial pressure can not be caused to slip joint and connected pipeline.Seal ring is arranged in the annular table of connecting cylinder, improves the connection sealing of slip joint.Stiffener is arranged on the outside of urceolus.Stiffener improves the radial strength of slip joint, when ground occurring and sinking, avoids the problem of the radial force deficiency occurred.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should described be as the criterion with the protection domain of claim.

Claims (4)

1. a slip joint, it is characterized in that: comprise inner core, urceolus, connecting cylinder and seal ring, the two ends of described inner core arrange annular table outwardly, described urceolus is arranged on the outside of inner core, and between two annular table of inner core, the two ends of described urceolus are all connected with connecting cylinder, the two ends of described connecting cylinder arrange inwardly outstanding annular table, the annular table inner diameter of described connecting cylinder is less than the annular table outer diameter of inner core, and described seal ring is arranged on connecting cylinder.
2. slip joint according to claim 1, is characterized in that: also comprise stiffener, stiffener is arranged on the outside of urceolus.
3. slip joint according to claim 1, is characterized in that: the socket material of inner core adopts soft plastic, and its annular table material adopts hard plastic.
4. slip joint according to claim 3, is characterized in that: the socket material of inner core is the one in TPU, TPE, TPR, TPV, CPE.
CN201420735731.6U 2014-11-28 2014-11-28 A kind of slip joint Expired - Fee Related CN204345155U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420735731.6U CN204345155U (en) 2014-11-28 2014-11-28 A kind of slip joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420735731.6U CN204345155U (en) 2014-11-28 2014-11-28 A kind of slip joint

Publications (1)

Publication Number Publication Date
CN204345155U true CN204345155U (en) 2015-05-20

Family

ID=53228423

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420735731.6U Expired - Fee Related CN204345155U (en) 2014-11-28 2014-11-28 A kind of slip joint

Country Status (1)

Country Link
CN (1) CN204345155U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108691555A (en) * 2018-04-20 2018-10-23 北京工业大学 Fault belt section antidetonation tunnel pipelines connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108691555A (en) * 2018-04-20 2018-10-23 北京工业大学 Fault belt section antidetonation tunnel pipelines connector

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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: 20150520

Termination date: 20191128

CF01 Termination of patent right due to non-payment of annual fee