EP2926044A1 - Dispositif d'obturation d'une canalisation - Google Patents
Dispositif d'obturation d'une canalisationInfo
- Publication number
- EP2926044A1 EP2926044A1 EP13798650.1A EP13798650A EP2926044A1 EP 2926044 A1 EP2926044 A1 EP 2926044A1 EP 13798650 A EP13798650 A EP 13798650A EP 2926044 A1 EP2926044 A1 EP 2926044A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pipe
- balloon
- rod
- hole
- wall
- 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- Withdrawn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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/124—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced radially into the pipe or hose
Definitions
- the present invention relates to a device for closing a pipe. It finds a particular non-limiting application in the field of plumbing to facilitate interventions in piping circuits of water or other liquids.
- the balloon is introduced into a deflated position at one end of the pipe that is to be plugged. Once the introduction has been effected, the balloon is filled with a fluid, for example simply air, so as to expand so that the balloon is applied to the inner peripheral walls of the pipe for the butcher.
- a fluid for example simply air
- WO-A2-2006 / 049509 discloses an inflatable system cooperating with a longitudinal mouth of a pipe.
- Existing devices are effective in capping but offer little scope for application of this technique.
- the object of the present invention is to overcome all or part of the disadvantages of shutter devices known hitherto and to this end has a device for closing off a pipe, comprising a balloon configured to have an inflated configuration in which the balloon is able to plug the pipe and a deflated configuration in which the balloon is not able to plug the pipe.
- it comprises a system for fixing the balloon in the pipe, said system being able to cooperate with a hole in the wall of the pipe.
- the closure device can be used in all types of pipe and especially plumbing pipes for example for the discharge of wastewater by taking advantage of a hole in the wall of the pipe, preferably small dimension, so as to achieve a lateral introduction of the closure device and to fix relative to the wall of the pipe.
- An advantage of the invention is that the mobility of the device in the pipe is stopped by the fastening system. This avoids any risk of loss of the balloon, for example if the pressure exerted by the fluid in the pipe is too great.
- the invention also relates to an assembly comprising a pipe and a device, the pipe having a hole in its wall cooperating with the fastening system.
- Another aspect of the invention relates to a method for closing a pipe, comprising steps of:
- Figure 1 shows an embodiment of the device of the invention in deflated configuration.
- Figure 2 is an example of a constituent part of the fastening system.
- FIG. 3 shows an embodiment of the device of the invention in inflated configuration and in a dotted line situation in a pipe.
- Figure 4 is a top view of the device and Figure 5 a profile view in a pipeline situation.
- the balloon cooperates on a portion of its outer surface with the rod.
- the system comprises a rod whose first end is connected to the balloon and configured to pass through the hole in the pipe.
- the system comprises a stop member in translation of the rod in the hole of the pipe.
- the stop member is configured to be applied on an outer surface of the wall of the pipe.
- the stop member comprises a bar extending perpendicularly to the rod.
- - It comprises a counter-support portion adapted to be applied on an inner surface of the wall of the pipe so as to exert a force opposite to that of the stop member.
- the counter-support portion is an area of the balloon.
- the balloon area has an extra thickness.
- the rod is threaded and the stop member has a threaded hole mounting on the rod.
- the fastening comprises, during inflation of the balloon, a bearing of a balloon area located around the rod on an inner surface of the pipe.
- the formation of a hole comprises a hole in the thickness of the wall of the pipe.
- Figure 1 shows an embodiment of the closure device and in particular the presence of a balloon 1 here in a deflated configuration.
- a balloon 1 here in a deflated configuration.
- a situation of the balloon 1 in which the volume occupied by the balloon 1 is less than the volume occupied by the balloon 1 in an inflated position, the latter position corresponding to a position in which the balloon 1 blocks the pipe, its volume sufficient to apply on the inner walls of the latter.
- the balloon 1 may be of elastomeric material or of natural rubber or any other material. Its sufficiently elastic composition is advantageous for operating the inflation and deflation phases in an effectively reversible manner.
- the balloon 1 cooperates on a portion of its outer surface with a rod 2 extending elongate between a first end 5 connected to the balloon and a second end 6 corresponding to a distal end at which a valve 3 is located.
- the rod 2 participates in a function of fixing the device in the pipe.
- the rod 2 is advantageous for the same rod 2 to be used for the inflation and deflation phases.
- the rod 2 is preferably made in the form of a rod having an internal conduit from the valve 3 towards the inside of the balloon 1 so as to allow the introduction or the exit of fluid into the interior volume of the balloon 1 .
- the rod 2 is also advantageously used for fixing the device.
- the wall of the pipe 10 is the peripheral envelope which delimits the internal channel of the pipe 10. It extends around the inner channel along its longitudinal dimension.
- the hole 8, 12 therefore has an orientation according to the thickness of the pipe and differs from the mouths of the pipe, along its longitudinal direction.
- the invention advantageously comprises a member shown in FIG. 2 in the form of a bar 7 and having a principal direction marked L in this figure perpendicular to the direction of the rod 2.
- the bar 7 constitutes an element capable of cooperating with the rod 2 once the device is in position in a pipe 10 so that the bar 7 is applied to an outer surface of the pipe 10 and constitutes a support.
- the bar 7 has a hole 8.
- the hole 8 is threaded and the rod 2 is threaded so that these two members cooperate in the form of helical slide and allow the rise or fall of the bar 7 along the rod 2.
- the hole 8 is not threaded but the fastening system comprises a nut so as to ensure the helical slide function and the fixing in relative position in translation along the rod of the bar 7.
- the bar 7 is not threaded and comprises only an introduction passage of the rod 2.
- a locking member such as a nut is then attached above the bar 7 to stop the relative translation of the rod 2 and the bar 7.
- the bar may have a more complex profile than the elongated shape of the figures. In particular, it may have a "U" profile whose base is perpendicular to the rod 2 and whose branches are configured to be applied around the pipe 10, parallel to the rod. The device is thus provided with a locking rotation.
- Other shapes are possible, including curved profiles.
- the pipe 10 comprises a surface portion forming a bearing surface 1 1 to cooperate with a portion facing the outer surface of the balloon 1.
- a reinforced zone 9 of the outer surface of the balloon 1 is applied directly to the inner surface of the pipe 10.
- Reinforced zone 9 is understood to mean a portion of the balloon 1 configured to offer increased resistance with respect to the remainder of the surface of the balloon .
- the reinforced zone can be made in the form of an extra thickness of the wall of the balloon 1.
- the counter-support portion made by the reinforced zone 9 may, in a complementary or alternative manner be carried out with a separate element of the balloon.
- the closure device may comprise a sheet applicable to the surface external balloon 1 at an area adjacent the rod 2 so as to achieve an intermediate element between the outer surface of the balloon 1 and the inner surface of the pipe 10.
- a resistant textile web can be used.
- the counter-support portion does not necessarily have a reinforced zone 9 on the balloon 1, in particular if the intermediate element is present, or if the general resistance of the balloon 1 is sufficient to dispense with the reinforced zone. 9.
- the counter-support zone is located around the place of cooperation with the rod 2. It advantageously surrounds it. This allows support, preferably continuous, around the rod 2, between the balloon and the inner surface of the pipe 10.
- Figure 4 shows a top view of the bar 7 fitted to the device.
- the bar 7 may be a member having a main direction L much greater than its width. In this way, by orienting the bar 7 substantially in the longitudinal direction of the pipe 10, it can operate a relatively long length of support without the bar 7 does not exceed the section of the pipe 10. This is configuration which is shown in Figure 4.
- the length L of the bar 7 may be greater than the diameter of the pipe 10 without impeding the operation and allowing support all the more effective. Its width is instead preferably less than this diameter.
- the invention can be implemented with a pipe shutter process whose steps follow.
- a hole is made through the pipe as the hole 12 shown in Figure 4.
- This hole is not necessarily circular section but present in a way generally a section of sufficient size to allow the introduction of the balloon 1 inside the pipe, the balloon 1 being deflated position.
- the rod 2 may be of sufficient length on the one hand to pass through the thickness of the wall of the pipe 10 but also to facilitate handling of the assembly.
- the balloon 1 is inflated so that it passes into the plugging position of the pipe 10.
- the dashed lines schematize an example of lateral expansion of the balloon 1 in the duct due to the inflation 1.
- the pressure exerted by the balloon 1 on the internal surface of the wall of the pipe 10 is sufficient to plug the pipe in the desired application.
- the deflated position is at least such that the size of the balloon allows its introduction into the hole.
- the inflated position is at least such that the balloon can not leave the hole. Its diameter is greater than that of the hole.
- an area of the balloon surrounding the rod 2 is brought into contact with the inner surface of the pipe so as to exert a support. It is understood that this support is complementary to that exerted by the bar 7 so that the assembly takes in a vise the wall of the pipe 10. This arrangement allows an effective fixation of the closure device in the pipe 10.
- this zone is advantageously slightly larger than the dimension of the hole 12.
- it may be a zone circular section of diameter "a" at least 10% larger than the diameter of the hole 12.
- the device can be reused for other operations.
- the hole 12 is plugged by any common means after the operation.
- the closure may be used to plug a sewage pipe momentarily when the plumbing intervention is necessary, in particular to repair a leak or reorganize an exhaust pipe. 'waste.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1261455A FR2998939B1 (fr) | 2012-11-30 | 2012-11-30 | Dispositif d'obturation d'une canalisation |
PCT/EP2013/075013 WO2014083128A1 (fr) | 2012-11-30 | 2013-11-28 | Dispositif d'obturation d'une canalisation |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2926044A1 true EP2926044A1 (fr) | 2015-10-07 |
Family
ID=47754710
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP13798650.1A Withdrawn EP2926044A1 (fr) | 2012-11-30 | 2013-11-28 | Dispositif d'obturation d'une canalisation |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2926044A1 (fr) |
FR (1) | FR2998939B1 (fr) |
WO (1) | WO2014083128A1 (fr) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4658861A (en) * | 1986-01-23 | 1987-04-21 | Roberson Walter H Sr | Test plug assembly |
US5503188A (en) * | 1993-12-30 | 1996-04-02 | Petrone; Joseph A. | Inflatable air bag pipeline stopper |
NZ536269A (en) * | 2004-11-01 | 2007-05-31 | Richard Ord | Blocking assembly with inflatable bladder typically for blocking drains and cesspits in event of chemical spills |
-
2012
- 2012-11-30 FR FR1261455A patent/FR2998939B1/fr not_active Expired - Fee Related
-
2013
- 2013-11-28 WO PCT/EP2013/075013 patent/WO2014083128A1/fr active Application Filing
- 2013-11-28 EP EP13798650.1A patent/EP2926044A1/fr not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2014083128A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR2998939B1 (fr) | 2016-04-01 |
FR2998939A1 (fr) | 2014-06-06 |
WO2014083128A1 (fr) | 2014-06-05 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20150608 |
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AX | Request for extension of the european patent |
Extension state: BA ME |
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DAX | Request for extension of the european patent (deleted) | ||
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: EXAMINATION IS IN PROGRESS |
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17Q | First examination report despatched |
Effective date: 20181119 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20190330 |