CN206988639U - Non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint - Google Patents
Non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint Download PDFInfo
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- CN206988639U CN206988639U CN201720805815.6U CN201720805815U CN206988639U CN 206988639 U CN206988639 U CN 206988639U CN 201720805815 U CN201720805815 U CN 201720805815U CN 206988639 U CN206988639 U CN 206988639U
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- reciprocating hermetic
- sealing ring
- ring
- expansion joint
- sealing
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Abstract
The utility model provides a kind of non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint, including core pipe, left guide ring, reciprocating hermetic overcoat, sealing ring, soft graphite, sealing ring, right guide ring and reducer pipe, the reciprocating hermetic overcoat is arranged in core pipe, sealing ring, left guide ring, sealing ring and right guide ring are respectively in reciprocating hermetic overcoat, sealing ring and soft graphite form sealed letter, and reducer pipe is welded and fixed together with reciprocating hermetic overcoat.The reciprocating hermetic mode of 2 ~ 4 rubber rings and the combination of flexible graphite sealing letter is employed, the characteristics of 2 ~ 4 seal with elastometic washer frictional force are small had both been remained, and had combined the characteristics of graphite grazing effect is good again；The shortcomings that simple rubber is easy to aging, simple graphite grazing frictional force is big is overcome simultaneously, and in the case of 2 ~ 4 rubber rings all aging seal failure, sealed letter remains to play sealing function, enables compensator normal use.The safe for operation of compensator is advantageously ensured that particularly with the larger pipeline of directly buried installation caliber.
Description
Technical field
It the utility model is related to a kind of non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint.
Background technology
At present due to conveying hot water high-temperature medium in district heat supply network, using deposited in direct buried laying and trench
If use compensator compensation way mostly.In used compensator product, simple seal with elastometic washer sleeve expansion joint,
Ageing resistace is poor, compensator leakage phenomenon easily occurs；Simple graphite grazing sleeve expansion joint, frictional force are too big, it is impossible to
Adapt to require strict pipe network to frictional force.For it is above-mentioned the problems of in the prior art, research and design is a kind of new
Non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint pipe fitting, considers pipe network stress and rubber problem easy to aging, avoids compensator
Leakage, it is the problems of in the prior art very necessary so as to overcome.
The content of the invention
The purpose of this utility model is to provide non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint, and the utility model is real
Technical scheme is used by existing above-mentioned purpose：Non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint, including core pipe, left guiding
Ring, reciprocating hermetic overcoat, sealing ring, soft graphite, sealing ring, right guide ring and reducer pipe, the reciprocating hermetic overcoat installation
In core pipe, sealing ring, left guide ring, sealing ring and right guide ring respectively in the reciprocating hermetic overcoat, reducer pipe with it is compound
Hermetically sealed case is welded and fixed together.
The sealing ring is 2 ~ 4 rubber rings.
The rubber ring is O-shaped or X-type or Y type rubber rings.
It is provided with sealed letter between core pipe end guide ring and sealing ring, the encapsulant in sealed letter is flexible stone
Ink.
The outer surface chromium plating of the core pipe.
Left guide ring and right guide ring are provided with the reciprocating hermetic overcoat, respectively positioned at the both sides of reciprocating hermetic structure.
The sealing ring, soft graphite and sealing ring form reciprocating hermetic structure.
The super reinforcement level reciprocating hermetic is that reciprocating hermetic overcoat, sealing ring, soft graphite and 2-4 roads sealing ring are jointly multiple
The sealing of conjunction.
The non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint of one kind provided by the utility model, in 2 ~ 4 caulking gums
In the case of circle all aging seal failures, sealed letter remains to play sealing function, enables compensator normal use.
The beneficial effects of the utility model are：It is non-maintaining it is super reinforcement level reciprocating hermetic sleeve expansion joint employ rubber ring and
The reciprocating hermetic mode of flexible graphite sealing letter combination, had both remained the characteristics of 2 ~ 4 seal with elastometic washer frictional force are small, combined again
The characteristics of graphite grazing effect is good；Overcome that simple rubber is easy to aging, simple graphite grazing frictional force is big to be lacked simultaneously
Point, the rubber ring aging seal failure the defects of, sealed letter remains to play sealing function, enables compensator normal use.Especially
It advantageously ensures that the safe for operation of compensator for the larger pipeline of caliber, meanwhile, non-maintaining super reinforcement level reciprocating hermetic set
Cylinder compensator additional guiding ring is oriented to as active operation more causes compensator to operate steadily, securely and reliably.The utility model has
There is the features such as structure novelty, simple installation, easy to use, service life is long, safe and reliable.Meanwhile with O-shaped rubber ring phase
Than because X-type and Y type rubber rings form lubrication cavity volume between sealing lip, therefore there is less frictional resistance, the resistance of start.
Because of recess of its flash locations in section, so sealing effectiveness is relatively good.Noncircular cross section, effectively avoid reciprocating motion
When produce rollover phenomenon.
Brief description of the drawings
Fig. 1 is the non-maintaining super overall structure diagram for strengthening level reciprocating hermetic sleeve expansion joint.
In figure：1. core pipe；2. left guide ring；3. reciprocating hermetic overcoat；4. sealing ring；5. soft graphite；6. sealing ring a；
7. sealing ring b；8. sealing ring c；9. right guide ring；10. reducer pipe.
Embodiment
As shown in figure 1, non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint, including it is core pipe 1, left guide ring 2, compound close
Overcoat 3, sealing ring 4, soft graphite 5, sealing ring a6, sealing ring b7, sealing ring c8, right guide ring 9 and reducer pipe 10 are sealed, it is compound
Hermetically sealed case 3 is arranged in core pipe 1, and left guide ring 2, sealing ring 4, sealing ring 6.7.8 and right guide ring 9 are respectively embedded in compound close
Seal in overcoat 3, soft graphite 5 is arranged between sealing ring 4 and reciprocating hermetic overcoat 3, and reducer pipe 10 welds with reciprocating hermetic overcoat 3
Connect and be fixed together.The non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint of the utility model, it is all old in 2 ~ 4 sealing rubber rings
In the case of changing seal failure, sealed letter, which remains to play sealing function, enables compensator normal use.Employ rubber seal
Circle, soft graphite and sealing ring composition duplex sealing, had both remained the characteristics of 2 ~ 4 seal with elastometic washer frictional force are small, again
Combine the characteristics of graphite grazing effect is good；It is big to overcome the graphite grazing frictional force that simple rubber is easy to aging, simple simultaneously
The shortcomings that, the rubber ring aging seal failure the defects of, sealed letter remains to play sealing function, compensator is normally made
With.The safe for operation of compensator is advantageously ensured that particularly with the larger pipeline of caliber, meanwhile, non-maintaining super reinforcement level is compound close
Envelope sleeve expansion joint additional guiding ring is oriented to as active operation more causes compensator to operate steadily, securely and reliably.This practicality is new
Type has the characteristics that structure novelty, simple installation, easy to use, service life is long, safe and reliable.
It is described above, it is only the new preferable embodiment of the present invention, but new protection domain of the invention is simultaneously
This is not limited to, all those familiar with the art are in the new disclosed technical scope of the present invention, according to this hair
Bright new technical scheme and its design of the present utility model are subject to equivalent substitution or changed to cover of the invention new
Within protection domain.
Claims (7)
1. non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint, it is characterised in that：Including core pipe, left guide ring, reciprocating hermetic
Overcoat, sealing ring, soft graphite, sealing ring, right guide ring and reducer pipe, the reciprocating hermetic overcoat is arranged in core pipe, close
Respectively in reciprocating hermetic overcoat, sealing ring and soft graphite form sealing for seal ring, left guide ring, sealing ring and right guide ring
Letter, reducer pipe are welded and fixed together with reciprocating hermetic overcoat.
2. non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint according to claim 1, it is characterised in that：The sealing
Enclose as 2 ~ 4 rubber rings.
3. non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint according to claim 2, it is characterised in that：The rubber
Enclose as O-shaped or X-type or Y type rubber rings.
4. non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint according to claim 1, it is characterised in that：Lead on the left side
To being provided with sealed letter between ring and sealing ring, in sealed letter can packing matcrial be soft graphite.
5. non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint according to claim 1, it is characterised in that：The core pipe
Outer surface chromium plating.
6. non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint according to claim 1, it is characterised in that：The sealing
Ring, soft graphite and sealing ring form reciprocating hermetic structure.
7. non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint according to claim 1, it is characterised in that：It is described compound
Left guide ring and right guide ring are provided with hermetically sealed case, respectively positioned at the both sides of reciprocating hermetic structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720805815.6U CN206988639U (en) | 2017-07-05 | 2017-07-05 | Non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720805815.6U CN206988639U (en) | 2017-07-05 | 2017-07-05 | Non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206988639U true CN206988639U (en) | 2018-02-09 |
Family
ID=61399557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720805815.6U Active CN206988639U (en) | 2017-07-05 | 2017-07-05 | Non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206988639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058639A (en) * | 2018-10-17 | 2018-12-21 | 西南交通大学 | A kind of flexible compensation interface of vacuum traffic pipeline |
| CN110185868A (en) * | 2019-05-10 | 2019-08-30 | 沈阳市浆体输送设备制造有限公司 | Disposable sleeve expansion joint |
-
2017
- 2017-07-05 CN CN201720805815.6U patent/CN206988639U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058639A (en) * | 2018-10-17 | 2018-12-21 | 西南交通大学 | A kind of flexible compensation interface of vacuum traffic pipeline |
| CN109058639B (en) * | 2018-10-17 | 2024-01-26 | 西南交通大学 | Telescopic compensation interface of vacuum traffic pipeline |
| CN110185868A (en) * | 2019-05-10 | 2019-08-30 | 沈阳市浆体输送设备制造有限公司 | Disposable sleeve expansion joint |
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