CN206310144U - Pressure balance type spring expansion joint - Google Patents
Pressure balance type spring expansion joint Download PDFInfo
- Publication number
- CN206310144U CN206310144U CN201621401111.4U CN201621401111U CN206310144U CN 206310144 U CN206310144 U CN 206310144U CN 201621401111 U CN201621401111 U CN 201621401111U CN 206310144 U CN206310144 U CN 206310144U
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- China
- Prior art keywords
- spring
- expansion joint
- end plate
- bellows
- short tube
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Abstract
The utility model discloses a kind of pressure balance type spring expansion joint, two work bellowss and a balance bellows and threeway by intervalve connection, end socket, pull bar, end plate, bolt, end pipe composition.When pipe-line system is connected using flange, also comprising flange assembly.The lateral displacement in bellows pressure thrust and arbitrary plane can be born.Original rod assembly is replaced using spring assembly, when 4 direction spring elongations or identical compressed shape variable, axial displacement is can absorb, blind flange force is born；When 4 all directions spring deformations are different, the lateral displacement of any direction is can absorb, the displacement of absorption is bigger；Bear deformability strong, confrontation angular displacement compares the more stable safety of rod-pulling type expansion joint, the utility model compares rod assembly, and spring assembly deflection is big, it is to avoid the situation that pull bar is damaged when lateral displacement is larger occurs.Spring changes convenient, safeguards simple.
Description
Technical field
The utility model is related to pressure expansion section technical field, and in particular to a kind of pressure balance type spring expansion joint.
Background technology
Expansion joint is traditionally also compensator, or telescopic joint.By bellows (a kind of elasticity unit for constituting its operative body
Part) and the annex such as end pipe, support, flange, conduit composition.Expansion joint be to compensate for because temperature difference and mechanical oscillation cause it is attached
Plus stress, and it is arranged on a kind of flexible structure on container casing or pipeline.Using the effectively flexible of its operative body bellows
Deformation, with the change in size that absorption line, conduit, container etc. are produced by the reason such as expanding with heat and contract with cold, or compensation pipes, conduit,
The axial of container etc., transverse direction and angular displacement.Can also be used for noise-and-vibration-reduction, in heat supply, during in order to prevent heat supply pipeline from heating up, by
Cause pipe deforming or destruction in thermal stretching or temperature stress, it is necessary to set compensator on pipeline, to compensate the heat of pipeline
Elongation, so as to reduce the stress of tube wall and act on the active force on valve member or supporting structure.
Because expansion joint is used as a kind of elastic compensation element that can freely stretch, with reliable operation, functional, structure
Compact the advantages of, have been widely used in departments such as chemical industry, metallurgy, nuclear energy.The expansion joint used on container, there is diversified forms,
For the shape of ripple, apply the most extensive with U-shaped expansion joint, secondly also have Ω shapes and C-shaped etc..And used on pipeline
Expansion joint be divided into universal, pressure balance type, hinge type and Universal connector hair style etc. for structure compensation, again.
Utility model content
In view of the shortcomings of the prior art, the utility model discloses a kind of pressure balance type spring expansion joint, ripple can be born
Lateral displacement in line pipe pressure thrust and arbitrary plane, it is to avoid the situation that pull bar is damaged when lateral displacement is larger occurs.
The utility model is achieved by the following technical programs：A kind of pressure balance type spring expansion joint, including work
Bellows, balance bellows, end socket, spring, end plate, bolt and short tube；The spring is fixed by bolt with the end plate, institute
Short tube is stated for threeway short tube, the end plate is arranged on the short tube left end termination, and the work bellows is arranged on the end
Between plate, the right-hand member termination of the short tube is provided with the end socket, and the short tube one end where the end socket is provided with the end plate, institute
Balance bellows is stated to be arranged between the end plate.
Preferably, the work bellows and balance bellows are arranged on the short tube.
Preferably, the spring is connected by the bolt with the end plate.
Preferably, spring hanger link is additionally provided with around the end plate, the end plate thickness is adjustable, the spring hanger link diameter
It is adjustable.
Preferably, the spring hanger link is provided with and is threaded, and the spring hanger link is connected by screw thread with matching nut.
The beneficial effects of the utility model are：
The utility model can bear the lateral displacement in bellows pressure thrust and arbitrary plane.Replaced using spring assembly
Original rod assembly, when 4 direction spring elongations or identical compressed shape variable, can absorb axial displacement, bears blind flange force；
When 4 all directions spring deformations are different, the lateral displacement of any direction is can absorb, the displacement of absorption is bigger；Bear deformability
By force, confrontation angular displacement compares the more stable safety of rod-pulling type expansion joint, and the utility model compares rod assembly, spring assembly deformation
Amount is big, it is to avoid the situation that pull bar is damaged when lateral displacement is larger occurs.Spring changes convenient, safeguards simple.
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the accompanying drawing to be used needed for description of the prior art is briefly described, it should be apparent that, drawings in the following description are only
It is some embodiments of the present utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of end plate；
Label in figure is represented respectively：
1st, short tube；2nd, end plate；3rd, work bellows；4th, bolt；5th, spring；6th, end socket；7th, bellows is balanced；8th, spring hangs
Bar；9th, matching nut.
Specific embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, is clearly and completely described, it is clear that retouched to the technical scheme in the utility model embodiment
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Based on the implementation in the utility model
Example, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made is belonged to
The scope of the utility model protection.
A kind of pressure balance type spring expansion joint as depicted in figs. 1 and 2, including work bellows 3, balance bellows 7,
End socket 6, spring 5, end plate 2, bolt 4 and short tube 1；The spring is fixed by bolt with the end plate, and the short tube is threeway
Short tube, the end plate is arranged on the short tube left end termination, and the work bellows is arranged between the end plate, described short
The right-hand member termination of pipe is provided with the end socket, and the short tube one end where the end socket is provided with the end plate, the balance bellows
It is arranged between the end plate.
Specifically, work bellows and balance bellows are arranged on the short tube, spring passes through the bolt and institute
State end plate to be connected, spring hanger link 8 is additionally provided with around end plate, the end plate thickness is adjustable, and the spring hanger link diameter is adjustable, bullet
Spring suspension rod is provided with and is threaded, and the spring hanger link is connected by screw thread with matching nut 9, and flange phase is passed through between short tube
Even, the flange includes flange assembly.
Two work bellowss and a balance that the utility model pressure balance type spring expansion joint is connected by intervalve
Bellows and threeway, end socket, pull bar, end plate, bolt, end pipe composition.When pipe-line system is connected using flange, also comprising flange
Component.
The lateral displacement in bellows pressure thrust and arbitrary plane can be born.In traditional pressure balanced expansion base
Be improved on plinth, original rod assembly replaced using spring assembly, installed in elbow, 4 direction spring elongations or
When compressed shape variable is identical, axial displacement is can absorb, bear blind flange force；When 4 all directions spring deformations are different, any side is can absorb
To lateral displacement, the displacement of absorption is bigger；This product bears deformability by force, and confrontation angular displacement expands compared to rod-pulling type
More stable safety is saved, but absorbs angular displacement not as major function.
Compared to rod assembly, spring assembly deflection is big, it is to avoid the situation that pull bar is damaged when lateral displacement is larger occurs.
Spring changes convenient, safeguards simple.
Above example is only used to illustrate the technical solution of the utility model, rather than its limitations；Although with reference to foregoing reality
Example is applied to be described in detail the utility model, it will be understood by those within the art that：It still can be to preceding
State the technical scheme described in each embodiment to modify, or equivalent is carried out to which part technical characteristic；And these
Modification is replaced, and does not make the spirit and model of essence disengaging each embodiment technical scheme of the utility model of appropriate technical solution
Enclose.
Claims (5)
1. a kind of pressure balance type spring expansion joint, it is characterised in that：Including work bellows, balance bellows, end socket, bullet
Spring, end plate, bolt and short tube；The spring is fixed by bolt with the end plate, and the short tube is threeway short tube, the end plate
It is arranged on the short tube left end termination, the work bellows is arranged between the end plate, the right-hand member termination of the short tube
The end socket is provided with, the short tube one end where the end socket is provided with the end plate, the balance bellows is arranged on the end
Between plate.
2. pressure balance type spring expansion joint according to claim 1, it is characterised in that：The work bellows and balance
Bellows is arranged on the short tube.
3. pressure balance type spring expansion joint according to claim 1, it is characterised in that：The spring passes through the bolt
It is connected with the end plate.
4. pressure balance type spring expansion joint according to claim 1, it is characterised in that：It is additionally provided with around the end plate
Spring hanger link, the end plate thickness is adjustable, and the spring hanger link diameter is adjustable.
5. pressure balance type spring expansion joint according to claim 4, it is characterised in that：The spring hanger link is provided with band
There is screw thread, the spring hanger link is connected by screw thread with matching nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621401111.4U CN206310144U (en) | 2016-12-20 | 2016-12-20 | Pressure balance type spring expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621401111.4U CN206310144U (en) | 2016-12-20 | 2016-12-20 | Pressure balance type spring expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206310144U true CN206310144U (en) | 2017-07-07 |
Family
ID=59252348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621401111.4U Active CN206310144U (en) | 2016-12-20 | 2016-12-20 | Pressure balance type spring expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206310144U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681712A (en) * | 2019-01-28 | 2019-04-26 | 秦皇岛市泰德管业科技有限公司 | A kind of pressure self-balancing type expansion joint |
-
2016
- 2016-12-20 CN CN201621401111.4U patent/CN206310144U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109681712A (en) * | 2019-01-28 | 2019-04-26 | 秦皇岛市泰德管业科技有限公司 | A kind of pressure self-balancing type expansion joint |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |