CN107143714A - Expansion joint - Google Patents
Expansion joint Download PDFInfo
- Publication number
- CN107143714A CN107143714A CN201710279352.9A CN201710279352A CN107143714A CN 107143714 A CN107143714 A CN 107143714A CN 201710279352 A CN201710279352 A CN 201710279352A CN 107143714 A CN107143714 A CN 107143714A
- Authority
- CN
- China
- Prior art keywords
- expansion joint
- quadric chain
- bellows body
- connection pipe
- bellows
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L27/00—Adjustable joints, Joints allowing movement
- F16L27/12—Adjustable joints, Joints allowing movement allowing substantial longitudinal adjustment or movement
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a kind of expansion joint, it is related to pipe transportation technology field, includes at least one section bellows body and connect the connection pipe body at the bellows body two ends respectively, the outer end of the connection pipe body is equipped with adpting flange；Quadric chain is provided with the outside of the bellows body, described two diagonal jointed shafts of quadric chain are separately mounted in the connection pipe body at the bellows body two ends；Four length of connecting rods of the quadric chain are identical.Compared with prior art, the present invention is when elongation expansion joint is attached, and quadric chain limits the maximum tension length of bellows body, it is to avoid stretching transition, expansion joint is non-damageable.
Description
Technical field
The present invention relates to pipe transportation technology field, especially a kind of expansion joint conveyed for fluid.
Background technology
Fluid-transporting tubing generally using adapter connection, because the length of expansion joint can be adjusted, is widely used in
Pipeline is connected.A kind of existing expansion joint, the expansion joint includes at least one section bellows body and connects bellows body respectively
The connection pipe body at two ends, the outer end of connection pipe body is equipped with adpting flange.This expansion joint exist in use it is following not
Foot：Due to the structure that the maximum tension length not to expansion joint is limited, it is attached needing elongation expansion joint
When, easy stretching transition causes expansion joint to damage.
The content of the invention
Problem to be solved by this invention is to provide a kind of expansion joint, can solve needing to elongate expansion joint progress
During connection, easy stretching transition causes the problem of expansion joint is damaged.
In order to solve the above problems, the technical solution adopted by the present invention is：This expansion joint, includes at least one section ripple
Line body and the connection pipe body for connecting the bellows body two ends respectively, the outer end of the connection pipe body are equipped with adpting flange；
The outside of the bellows body is provided with quadric chain, and described two diagonal jointed shafts of quadric chain are separately mounted to described
In the connection pipe body at bellows body two ends.
In above-mentioned expansion joint technical scheme, more specifically technical scheme can also be：Four of the quadric chain
Length of connecting rod is identical.
By adopting the above-described technical solution, the present invention has the advantages that compared with prior art：
1st, the present invention is provided with quadric chain in the outside of bellows body, and two diagonal jointed shafts of quadric chain are respectively mounted
In the connection pipe body at bellows body two ends；When elongation expansion joint is attached, quadric chain limits bellows body
Maximum tension length, it is to avoid stretching transition, expansion joint is non-damageable.
2nd, four length of connecting rods of quadric chain are identical, uniform force when expansion joint is stretched.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention 1.
Fig. 2 is the structural representation of the embodiment of the present invention 2.
Embodiment
The invention will be further described for embodiment below in conjunction with the accompanying drawings：
Embodiment 1
A kind of expansion joint as shown in Figure 1, includes one section of bellows body 3 and the respectively connection at connection bellows body 3 two ends
Body 2, the outer end of connection pipe body 2 is equipped with adpting flange 1；Quadric chain 4, double leval jib machine are housed in the outside of bellows body 3
Two diagonal jointed shafts of structure 4 are arranged in the connection pipe body 2 at the two ends of bellows body 3 by bearing 5 respectively, quadric chain
4 four length of connecting rods are identical.
Embodiment 2
A kind of expansion joint as shown in Figure 2, includes and passes through middle body between two sections of bellows bodies 3, two sections of bellows bodies 3
Connection, being equipped with connection pipe body 2, connection pipe body 2 for the outer end of bellows body 3 is equipped with adpting flange 1；In every section of bellows body 3
Outside is equipped with quadric chain 4, and four length of connecting rods of quadric chain 4 are identical, and two of quadric chain 4 diagonal to be hinged
Axle is arranged in the connection pipe body 2 at the two ends of bellows body 3 and middle body by bearing 5 respectively.
When elongation expansion joint is attached, quadric chain 4 limits the maximum tension length of bellows body 3, keeps away
Exempt from stretching transition, expansion joint is non-damageable.
Claims (2)
1. a kind of expansion joint, includes at least one section bellows body（3）The bellows body is connected respectively（3）The company at two ends
Adapter body（2）, the connection pipe body（2）Outer end be equipped with adpting flange（1）；It is characterized in that：In the bellows body（3）'s
Outside is provided with quadric chain（4）, the quadric chain（4）Two diagonal jointed shafts be separately mounted to the bellows
Body（3）The connection pipe body at two ends（2）On.
2. expansion joint according to claim 1, it is characterised in that：The quadric chain（4）Four length of connecting rod phases
Together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710279352.9A CN107143714A (en) | 2017-04-25 | 2017-04-25 | Expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710279352.9A CN107143714A (en) | 2017-04-25 | 2017-04-25 | Expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107143714A true CN107143714A (en) | 2017-09-08 |
Family
ID=59773883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710279352.9A Withdrawn CN107143714A (en) | 2017-04-25 | 2017-04-25 | Expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107143714A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701845A (en) * | 2017-09-28 | 2018-02-16 | 哈尔滨锅炉厂有限责任公司 | A kind of boiler expansion section protection device and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2337386Y (en) * | 1998-01-21 | 1999-09-08 | 南京晨光东螺波纹管有限公司 | Combined four-bar linkage type corrugated compensator |
| US20080001402A1 (en) * | 2006-06-29 | 2008-01-03 | Chih-Chen Yen | Adjustable plumbing fitting |
| CN201916627U (en) * | 2011-01-14 | 2011-08-03 | 张思中 | Self-adjusting type limiting rigid and flexible corrugated pipe joint |
| CN204358327U (en) * | 2014-12-29 | 2015-05-27 | 北京航天凌云波纹管有限公司 | A kind of without thrust bend pipe pressure balancing formula FlexbleJoint |
| CN106151759A (en) * | 2016-08-22 | 2016-11-23 | 南京晨光东螺波纹管有限公司 | External pressure lateral type expansion joint |
-
2017
- 2017-04-25 CN CN201710279352.9A patent/CN107143714A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2337386Y (en) * | 1998-01-21 | 1999-09-08 | 南京晨光东螺波纹管有限公司 | Combined four-bar linkage type corrugated compensator |
| US20080001402A1 (en) * | 2006-06-29 | 2008-01-03 | Chih-Chen Yen | Adjustable plumbing fitting |
| CN201916627U (en) * | 2011-01-14 | 2011-08-03 | 张思中 | Self-adjusting type limiting rigid and flexible corrugated pipe joint |
| CN204358327U (en) * | 2014-12-29 | 2015-05-27 | 北京航天凌云波纹管有限公司 | A kind of without thrust bend pipe pressure balancing formula FlexbleJoint |
| CN106151759A (en) * | 2016-08-22 | 2016-11-23 | 南京晨光东螺波纹管有限公司 | External pressure lateral type expansion joint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107701845A (en) * | 2017-09-28 | 2018-02-16 | 哈尔滨锅炉厂有限责任公司 | A kind of boiler expansion section protection device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170908 |