CN201764165U - Anti-expansion limiting stopper capable of being disassembled quickly - Google Patents
Anti-expansion limiting stopper capable of being disassembled quickly Download PDFInfo
- Publication number
- CN201764165U CN201764165U CN2010202488074U CN201020248807U CN201764165U CN 201764165 U CN201764165 U CN 201764165U CN 2010202488074 U CN2010202488074 U CN 2010202488074U CN 201020248807 U CN201020248807 U CN 201020248807U CN 201764165 U CN201764165 U CN 201764165U
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- Prior art keywords
- outer sleeve
- sealing rings
- pipeline
- inner cylinder
- utility
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- Expired - Fee Related
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Abstract
The utility model discloses an anti-expansion limiting stopper capable of being disassembled quickly, comprising an outer sleeve, a pressing flange, two sealing rings and an inner cylinder, wherein the head part of the inner cylinder is inserted in the outer sleeve, the end part of the outer sleeve is convex outwards so as to form an annular containing cavity in which the sealing rings are arranged, and the pressing flange is inserted in the annular containing cavity from the outer end so as to prop against the sealing rings, and the two sealing rings are O-shaped. In the utility model, the outer sleeve and the pressing flange are used for extruding the sealing rings, so that certain pressure is generated on the inner cylinder after the compression of the sealing rings, thus achieving the sealing effect. For the anti-expansion limiting stopper, not only the expansion amount due to the expansion caused by heat and contraction caused by cold of a pipeline can be absorbed, but also part of the inner cylinder can be pushed into the outer sleeve during the overhauling of the pipeline, thus disassembling a nearby plug pipeline directly without disassembling other pipe workpieces.
Description
Technical field
The utility model relates to feedwater and fire-fighting system technical field in the subway water channel, especially relates to the anti-snubber that expands that uses on a kind of running tunnel fire protection pipeline.
Background technique
According to the subway designing requirement, for preventing running tunnel stray current corrosion pipeline, the running tunnel fire protection pipeline need adopt socket joint centrifugal ductile cast iron pipes road and pipe fitting.
Generally, in socket joint spheroidal graphite cast iron pipeline system pipeline can appear generally, the pipe fitting breakage, trachoma or cushion rubber are installed seepy questions such as not in place, just need begin to dismantle breakage if carry out the impaired pipe fitting of maintain and replace from the nearest flange-interface of pipeline always, and so often need to dismantle tens even tens pipelines, each maintenance must be removed a large amount of zero defect pipelines, pipe fitting, fixed support and pipeline electric tracing thermal insulation etc., this maintenance length not only consuming time, task difficulty is big, lost time is also many, and often keep in repair parts and need several days even several weeks, bring safety problem for the metro operation vehicle.
The model utility content
The purpose of this utility model is to provide a kind of quick detach the anti-snubber that expands, it can solve fire supply in the subway sectional tunnel with the quick repair demolition of spheroidal graphite cast iron bell-and-spigot pipe, change impaired pipe fitting, pipeline and solution because of expanding with heat and contract with cold that the pipeline temperature influence produces.
For achieving the above object, the anti-snubber that expands of quick detach of the present utility model includes outer sleeve, differential, seal ring and inner core, wherein, the head of inner core is plugged in the outer sleeve, the end of outer sleeve is outwards protruded and is formed annular holding cavity, seal ring is arranged in the annular holding cavity, and differential then inserts the annular holding cavity from the outer end and withstands seal ring.
Described seal ring is the O RunddichtringO, and its quantity is two.
The beneficial effects of the utility model are: it pushes seal ring by outer sleeve and differential, makes seal ring compression back produce certain pressure to inner core, thereby reaches the effect of sealing.The extending amount that it not only can extraction duct expands with heat and contract with cold can also advance inner cylindrical portion in the urceolus when service conduits simultaneously, thereby direct dismounting socket joint pipeline nearby need not be dismantled other pipe fitting.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a sectional structure chart of the present utility model;
Fig. 2 is user mode figure of the present utility model.
Embodiment
The following stated only is preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model.
See illustrated in figures 1 and 2: the anti-snubber entire body material that expands of quick detach of the present utility model adopts centrifugal ductile cast iron, be used to connect adjacent two pipelines 1 and 2, it includes outer sleeve 10, differential 20, two O RunddichtringOs 30 and inner cores 40, wherein, the head of inner core 40 is plugged in the outer sleeve 10, the end of outer sleeve 10 is outwards protruded and is formed annular holding cavity, and O RunddichtringO 30 is arranged in the annular holding cavity, and 20 of differentials insert from the outer end and withstand O RunddichtringO 30 the annular holding cavity.
The utility model pushes by outer sleeve 10 and 20 pairs of O RunddichtringOs 30 of differential, makes O RunddichtringO 30 compression backs produce certain pressure to inner core 40, thereby reaches the effect of sealing.The extending amount that the utility model not only can extraction duct expands with heat and contract with cold can also advance certain distance in the urceolus 10 with inner core 40 simultaneously when service conduits, thereby direct dismounting socket joint pipeline nearby need not be dismantled other pipe fitting.The utility model is for the Security and the Economy of water engineering, and the technical merit of lifting industry has significance.
Claims (2)
1. quick detach is prevented the snubber that expands, it is characterized in that: it includes outer sleeve, differential, seal ring and inner core, wherein, the head of inner core is plugged in the outer sleeve, the end of outer sleeve is outwards protruded and is formed annular holding cavity, seal ring is arranged in the annular holding cavity, and differential then inserts the annular holding cavity from the outer end and withstands seal ring.
2. the anti-snubber that expands of quick detach according to claim 1, it is characterized in that: described seal ring is the O RunddichtringO, its quantity is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202488074U CN201764165U (en) | 2010-06-28 | 2010-06-28 | Anti-expansion limiting stopper capable of being disassembled quickly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202488074U CN201764165U (en) | 2010-06-28 | 2010-06-28 | Anti-expansion limiting stopper capable of being disassembled quickly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201764165U true CN201764165U (en) | 2011-03-16 |
Family
ID=43716770
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202488074U Expired - Fee Related CN201764165U (en) | 2010-06-28 | 2010-06-28 | Anti-expansion limiting stopper capable of being disassembled quickly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201764165U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486401A (en) * | 2013-09-29 | 2014-01-01 | 黄石新兴管业有限公司 | First-aid repairing method for repairing ductile cast iron pipeline subjected to water leakage |
| CZ304701B6 (en) * | 2011-03-30 | 2014-09-03 | SLEZSKÝ VÝZKUM s.r.o. | Interface |
| CN104791563A (en) * | 2015-03-30 | 2015-07-22 | 无锡市华尔泰机械制造有限公司 | Flange for wet H2S stress corrosion working condition and production process of flange for wet H2S stress corrosion working condition |
| CN105463341A (en) * | 2015-11-26 | 2016-04-06 | 无锡市华尔泰机械制造有限公司 | Stainless steel flange suitable for low-temperature work conditions and production technology of stainless steel flange |
-
2010
- 2010-06-28 CN CN2010202488074U patent/CN201764165U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ304701B6 (en) * | 2011-03-30 | 2014-09-03 | SLEZSKÝ VÝZKUM s.r.o. | Interface |
| CN103486401A (en) * | 2013-09-29 | 2014-01-01 | 黄石新兴管业有限公司 | First-aid repairing method for repairing ductile cast iron pipeline subjected to water leakage |
| CN104791563A (en) * | 2015-03-30 | 2015-07-22 | 无锡市华尔泰机械制造有限公司 | Flange for wet H2S stress corrosion working condition and production process of flange for wet H2S stress corrosion working condition |
| CN105463341A (en) * | 2015-11-26 | 2016-04-06 | 无锡市华尔泰机械制造有限公司 | Stainless steel flange suitable for low-temperature work conditions and production technology of stainless steel flange |
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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: 20110316 Termination date: 20150628 |
|
| EXPY | Termination of patent right or utility model |