CN1479847A - Fire block conduit coupler - Google Patents
Fire block conduit coupler Download PDFInfo
- Publication number
- CN1479847A CN1479847A CNA02803306XA CN02803306A CN1479847A CN 1479847 A CN1479847 A CN 1479847A CN A02803306X A CNA02803306X A CN A02803306XA CN 02803306 A CN02803306 A CN 02803306A CN 1479847 A CN1479847 A CN 1479847A
- Authority
- CN
- China
- Prior art keywords
- mentioned
- pipe
- joint
- pipe joint
- aforementioned tube
- 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.)
- Granted
Links
Images
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
A coupler (1) which is used in coupling plastic conduit through a separation in a building has plastic end regions (5) for an overlapped accurately positioned sealed coupling with the plastic conduit to each end of the coupler. The plastic end regions (5) are separated by an intermediate region (9) formed by a wall of plastic based intumescent material which defines a fluid flow passage (7) through the coupler. The fluid flow passage wall has a sufficient thickness of the intumescent material to produce a complete blockage of the passage when the coupler is subjected to conditions which cause an intumescing of the intermediate region wall material.
Description
Invention field
The present invention relates to a kind of joint for plastic tube with fiery blocking ability.
Background of invention
As everyone knows, pipeline such as wire duct, pipelines etc. provide and have made things convenient for passage for fire passes to next zone from a zone of building.Therefore, these pipelines comprise that fiery blocking part is very main.
Typical fiery blocking part is a kind of parts that can block the passage that passes pipeline when pipeline lives through high heat.This parts are usually used the expandable material manufacturing, and when being heated, described material expanse is so that cut off the fire that passes pipeline.
On November 10th, 1964 issue by the U. S. Patent 3,156,263 that Adelman applied in introduced a kind of fiery breaking member example that is arranged in the pipeline.According to the patent of Adelman, with a kind of steel pipe equipment foam backing, when heat reached excessive level in the pipeline, described foam backing was just to intramedullary expansion or expansion.
On January 10th, 1984 issue by the U. S. Patent 4,424,867 that Mallow applied in introduced another example of fiery breaking member.According to the patent of Mallow, pass the place of dividing plate at pipeline, assemble a kind of sleeve pipe of expanding material system around pipeline or cable.Just in case too much heat is arranged, sleeve pipe expands inwards so that cut off pipeline under the guide of sleeve pipe.The wall packing that the sleeve pipe that expands is inflated surrounds, and described wall packing all separates with sleeve pipe.The hardening of this wall packing is moved in case pyrotechnics passes around the dividing plate of pipeline.
The installation labor intensity of Mallow system is very big, above-mentioned installation comprise sleeve pipe is assemblied on the pipeline and with expanding material around sleeve pipe filling wall.And the Mallow system must pass dividing plate and form other unwanted macropore around pipeline, so that adapt to whole system.
The U. S. Patent by the Olson application on March 13rd, 1970 issue has shown a kind of pipeline pipe connecting head, and described pipeline pipe connecting head inwardly shrinks simply so that just in case excessive heat along pipeline by the time provide a kind of pipeline to cut off parts.
In the pipe joint of Olson, do not control the degree of depth and therefore that the orthicon road penetrates pipe joint, the accurate assembling of any pipe joint can not be arranged.And the pipe joint of Olson does not expand and can not be used as dividing plate cut-out parts, if reach the excessive possibility even invalid as pipeline cut-out parts of subsiding of the parts of cut-out is arranged.
On May 19th, 1981 issue by U. S. Patent 4 that Yamaguchi applied for, 267,853 disclose a kind of metal tube pipe joint, and described metal tube pipe joint comprises the interior pipe of a kind of rubber of heat-swellable, expand to pipe joint inside when pipe contingency has excessive heat in the described rubber.The Yamaguchi pipe joint cuts off parts as wall and is no advantage.
Summary of the present invention
The invention provides a kind of pipeline pipe connecting head, described pipe joint runs through the partitioned portion of fire-protection rating in the building such as wall, and floor etc. are so that be connected plastic pipe on arbitrary limit of partitioned portion.Pipe joint of the present invention has the plastic tip zone, is used for accurately being tightly connected the location with the joint for plastic tube overlapping under the situation that those stub areas are separated by an expansion area, and described expansion area is formed by plastic base expanding material wall.This plastic base expanding material wall limits and passes the fluid flowing passage of pipe joint, and has the expanding material of adequate thickness, complete blocking channel when standing to cause the condition that the pipe joint expansion area material that forms wall expands with convenient pipe joint.
Brief description
Above-mentioned and other advantage and characteristics of the present invention will be illustrated in more detail according to the preferred embodiments of the present invention, wherein:
Fig. 1 is the exploded perspective illustration of a pipe-line system, and this pipe-line system is used for holding according to the described pipeline pipe connecting head of the preferred embodiment of the present invention;
Fig. 2 is the sectional view that passes the pipeline pipe connecting head of Fig. 1;
Fig. 3 is the pipe-line system erection drawing of Fig. 1;
Fig. 4 is the view identical with Fig. 3, and the pipe-line system when standing fiery the influence is shown.
Fig. 5-the 9th, sectional view shows the plastic pipe connection of employing according to the pipe joint of the different preferred embodiments of the present invention.
The detailed description of the preferred embodiment of the present invention
Fig. 1 illustrates a kind of pipe-line system, and described pipe-line system comprises that a total label is a pair of pipe fitting P1 and the P2 that 1 pipe joint connects.Pipe joint 1 engages them in the place that above-mentioned a pair of pipe fitting passes a dividing plate or wall W.
Fig. 2 illustrates, and pipe joint 1 comprises a pair of socket 3 that leads to the pipe joint opposite end, and tube wall zone 5 is its border.
Each end of these sockets 3 all is a pipe fitting end of stroke 6, and described block 6 is got the convex shoulder form of its internal diameter less than each socket internal diameter.Between two pipe end blocks is a centre gangway 7 that runs through pipe joint.Passage 7 is the border with the tube wall zone 9 of pipe joint.As what can see in the drawings, tube wall zone 9 is thicker than tube wall regional 5.
Fig. 3 illustrates, and pipe joint is very approaching with the opening diameter that passes wall W.
Pipe fitting P1 and P2 have a kind of constructed in plastic material of standard, and described constructed in plastic material is used such as PVC (PVC) made, and described PVC is a kind of preferred constituent element of pipe joint in addition.In pipe joint, PVC provides a kind of carrier that is used for graphite, and this carrier makes pipe joint have expansion character.
With with the used identical materials of pipe fitting be that the benefit that PVC makes pipe joint is that pipe fitting can be welded on the pipe joint with standard solvent.In addition pipe fitting and pipe joint the two have identical physical property, so all elements of system all work to external force in the same manner, so that help system keeps together.Do not resemble presumable pollution problem when each parts of plastic systems are made with different materials in addition.
In order to assemble tube system, with two pipe fittings push socket when each pipe fitting is run into the socket end stone till.As mentioned above, each pipe fitting and pipe joint are welded together, so that provide very accurate tube system leakproof to engage in the place of passing dividing plate with known solvent.Dividing plate itself is fire-protection rating normally.
Fig. 4 illustrates when the pipe fitting pipe joint lives through calorimetric such as the heat that produces because of catching fire and how to work.More particularly, can see that the expanding material of making pipe joint sidewall areas 5 and 9 is this when hot when standing, promptly be expanded to the much bigger material volume of representing as 9a Fig. 4 and 5a place from its original shape.The expansion of expanding material is its original size manyfold, and expansion is towards the thermal source direction, and this will make fire just fire be cut off before propagating chance having, and will illustrate as following horse back.
Fig. 4 illustrates the passage that material 9a complete closed after the expansion is passed pipe joint.Kuo Zhang material 5a and the complete hermetically passing wall of 9a W are around the passage of pipe-line system in addition.Therefore, expanding material makes a room area and next room sealing effectively along the inside and outside All Ranges of pipe-line system.
Obviously, last wall and/or pipe-line system may be destroyed under heat-flash and ignition condition, and to cut off parts be a kind of temporary measure, so that can have sufficient time to control this situation.
In the above-described embodiments, pipe joint as noted earlier whole be to make with the combination of PVC and graphite.When having this composition, pipe joint is to use the method for molding manufacturing, rather than resembles the used extrusion manufacturing of the actual pipe fitting of manufacturing.This method of molding helps the shape of pipe joint such as injection moulding or compression molding, and in check static conditions is provided, so as to allow PVC-graphite combination form in one way the normal impact that can may be subjected to through receiver pipe connection.
From top accompanying drawing and explanation, many characteristics of this particular tube joint become apparent.For example, as can be seen, the wall that limits socket is not only thinner, and they are also shorter than the wall that limits pipe joint neutral zone between the socket on the length.In addition, in the design of this special pipe joint, the wall thickness of socket is about half of the wall thickness that limits pipe joint central fluid flow channel.They also are about half of pipe joint central authorities tube wall zone length.These ratios cause effectively use expanding material, and this compares relative more expensive with cut-out parts PVC.Under the situation of this effective use material, socket long enough so that provide with two pipe fitting overlappings is tightly connected, and described connection is enough to bear the power that system runs into usually under the joint need not excessive expanding material situation.Simultaneously, the thicker longer pipe wall zone of pipe joint central flows passage comprises enough expanding materials, blocks passage when expanding with convenient material fully.
Opposite with the full expanding material structure of pipe joint of Fig. 1-4, Fig. 5-7 illustrates the pipeline pipe connecting head with multiple material structure.Especially, this structure comprises fluid flowing passage that is limited by the expanding material wall and the connecting tube socket of being made by non-expansive material.
More particularly, Fig. 5 illustrates one generally with the 11 pipeline pipe connecting heads of representing, described pipe joint 11 connection pipe fitting P3 and P4.Moreover this connection normally penetrates the place formation of building separate pieces in pipe-line system, and pipe joint itself is positioned at separate pieces inside simultaneously.
As just example, the internal diameter of fluid flowing passage surrounds between the about 3-5 of wall thickness times of flow channel.
Here should note, material makes inside and outside the two expansion of pipe joint when expanding, and the outside of expanding material is expanded and is worked, so that sealing centers on the zone in the pipe joint penetrating member, prevents that cigarette and/or fire from centering on pipe joint and passing through except the inner obstruction of pipe joint between the room.
In the embodiment of Fig. 5, a pair of ring part 15 and 17 is enclosed within on the opposite end of tubulose expansion piece.They are sealed to tubular element by solvent welded etc. then, so that provide permanent socket at each end place of pipe joint.Except the stack expanding material, ring part 15 and 17 also stays enough spaces so that with two pipe fitting P3 and P4 stack and pasting pipe fitting P3 and the P4 sealing.The two ends of two pipe fittings will be in abutting connection with the relative two ends of expansion piece 13, so that the accurate location of pipe joint with respect to two pipe fittings is provided in advancing two sockets the time.
Moreover two sockets can match with these two pipe fittings owing to their available identical tube material manufacturings, so that produce extremely effective pipe joint solvent welded to two pipe fittings.
Embodiment shown in Figure 6 comprises that one is generally represented pipe joint with label 21.This pipe joint 21 comprises a unexpansive socket that forms member 25, and above-mentioned member 25 is grown than the tubular element 23 of expanding material system and is sealed on this tubular element 23.Therefore the expanding material lining that becomes a kind of shortening is used to form the member of socket.
Because the result of its overlength, the member that forms socket extends to the outside of each end of expansion piece, is connected with P10 stack sealed type with two pipe fitting P9 at place, pipe joint opposite end so that implement.
In this specific embodiments, expansion piece 23 needn't be sealed to unexpansive outer covering, because except passing the pipe joint in central authorities, where does not all have fluid to flow.This be since spigot seal on two pipe fittings.
Fig. 7 illustrates a kind of pipe joint, and this pipe joint represents with label 31 that generally pipe joint 31 pipe joint 21 with Fig. 6 in design is identical, but the enclosing cover 35 of pipe joint 31 is provided with except some tube wall openings 37.These tube wall openings 37 help the expanding material of pipe joint lining 33 towards the outside expansion of joint.Yet they also must be sealed to the terminal of lining 33 on the enclosing cover 35.This each opening 37 that prevents that the fluid by pipe joint from passing in the enclosing cover that is sealed on the expansion lining is overflowed.
Do not resemble the embodiment of Fig. 1-4, the embodiment of Fig. 5-7 needn't benefit with molding methods production.In these special embodiments, form the member of tubulose inflation channel and form socket member the two all have a kind of shape that they can make with method of molding or extrusion that makes easily.And, because the socket that provides pipe joint to be connected with pipe fitting has a kind of unexpansive structure, thus they can be easy to the extrusion manufacturing and have enough intensity and impact resistance so that make pipe joint suitably and engage pipe fitting and be fixed together.
Fig. 8 and 9 has shown the pipe-line system that other are connected, and above-mentioned pipe-line system has according to accurate pipe fitting of the present invention and pipe joint position.
More particularly, Fig. 8 illustrates a kind of pipe-line system, and described system comprises pipe fitting P5 and the P6 that connects with an expansion pipe fitting pipe joint 41.This pipe fitting pipe joint passes the Local Force Company jointed tubular workpieces of building separation part once more at pipe fitting.It has expanding ability as hereinbefore.
In Fig. 8, pipe joint 41 is got sleeve pipe form always, is led to the end stone 43 and 47 of pipe joint opposite end simultaneously by the tube wall setting of pipe fitting P5 and P6.Each pipe fitting is respectively arranged with ring part 45 and 49.These ring part stack pipe joints, and the fixed area that receives solvent is provided between pipe joint and pipe fitting.
Fig. 9 illustrates an alternative embodiment of the invention, and wherein to pass building separation part (not shown) fixing by an expansion pipe fitting pipe joint 51 for pipe fitting P7, and pipe fitting P7 is identical with pipe fitting P5 and P6, and pipe fitting P8 is a straight tube body, does not have the pipe fitting of annular ring.Be connected in order to form with pipe fitting P8, pipe joint 51 is equipped with a ring part 55 at one end, surrounds pipe fitting P8.The main body of pipe fitting P8 end stone is then being pasted the pipe fitting end block of pipe joint 51 inside.
In the superincumbent explanation, pipe joint is used to connect the pipe fitting that passes wall.Should be appreciated that pipe joint can be used for the pipeline of any other type by any other type building fire cigarette partitioned portion.
Although described various preferred embodiment of the present invention in detail, those skilled in the art know better, and under the situation that does not break away from spirit of the present invention or claims scope, can carry out various changes.
Claims (16)
1. the pipe joint that has the plastic end zone, described end regions is used for accurately locating each end that is sealably coupled to pipe joint with the plastic pipe overlapping, above-mentioned plastic end zone by a zone line separately, this zone line is formed by the wall of a plastic base expanding material, the fluid flowing passage of aforementioned tube joint is passed in qualification, above-mentioned tube wall has enough expanding material thickness, the obstruction fully that produces passage when being subjected to the condition that causes the material expansion with convenient pipe joint.
2. pipe joint as claimed in claim 1, wherein above-mentioned plastic end zone comprise that some internal diameters are greater than the socket of above-mentioned zone line to each end internal diameter of aforementioned tube joint zone line.
3. pipe joint as claimed in claim 2, wherein the aforementioned tube joint has a whole whole molding construction of being made by the plastic base expanding material.
4. pipe joint as claimed in claim 2, each all has a wall thickness wherein above-mentioned socket, and described wall thickness is about half of aforementioned tube joint zone line wall thickness.
5. pipe joint as claimed in claim 4, wherein the aforementioned tube joint has an external diameter, and described external diameter is the even longitudinal component of aforementioned tube joint.
6. pipe joint as claimed in claim 5, wherein the internal diameter of above-mentioned zone line is less than the wall thickness of about each plug of above-mentioned socket internal diameter.
7. pipe joint as claimed in claim 6, wherein above-mentioned each socket has equal lengths, and each socket has half length of aforementioned tube joint zone line.
8. pipe joint as claimed in claim 1, wherein above-mentioned each socket are with a kind of unexpansive plastic materials manufacturing, and above-mentioned plastic materials is consistent with the material of making plastic pipe.
9. pipe joint as claimed in claim 8, wherein above-mentioned socket comprises the member of a pair of formation socket, and above-mentioned member is enclosed within on each end of above-mentioned expanding material wall, and above-mentioned expanding material wall is separated from each other on the aforementioned tube joint.
10. pipe joint as claimed in claim 9, the member of wherein above-mentioned formation socket comprises some wall openings, so that the member that helps expanding material to pass above-mentioned formation socket expands.
11. pipe joint as claimed in claim 8 is formed by the single member that forms socket, the member of above-mentioned single formation socket is grown than the wall of above-mentioned expanding material and is enclosed within on this wall.
12. pipe-line system comprises first and second pipelines, described first and second pipelines connect by a pipe joint, the opening that described pipe joint separates by the building fire-protection rating, above-mentioned pipeline is with a kind of plastic materials manufacturing, and the aforementioned tube joint is with a kind of expanding material manufacturing, described expanding material comprises and makes the identical plastic materials of pipeline, above-mentioned pipe-line system comprises the annular end block that leads to aforementioned tube joint opposite end, described annular end block provides the accurate location of above-mentioned pipeline and pipe joint, and use the place of solvent welded mutually at aforementioned tube joint and pipeline, the expanding material of aforementioned tube joint does not expand in aforementioned tube joint inside to stop up above-mentioned pipe-line system and not have the outside of aforementioned tube joint to expand to stop up the opening in the partitioned portion.
13. pipe-line system as claimed in claim 12, wherein the aforementioned tube joint has a uniform outer dia, this outer dia is greater than the diameter of above-mentioned pipeline and near consistent with the opening in the partitioned portion, wherein the aforementioned tube joint has the reception socket in the opposite two ends of aforementioned tube joint, described socket ends at inner convex shoulder place, and described convex shoulder provides above-mentioned end stone.
14. pipe-line system as claimed in claim 13, wherein the aforementioned tube joint has an inner flow passage, and this inner flow passage is near the inner flow passage of above-mentioned pipeline.
15. pipe-line system as claimed in claim 12, wherein above-mentioned annular end block is arranged in the above-mentioned pipeline.
16. pipe-line system as claimed in claim 12, one of them of wherein above-mentioned annular end block is arranged on one of them of above-mentioned pipeline, and one of them of above-mentioned annular end block is arranged on the aforementioned tube joint.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2,331,099 | 2001-01-16 | ||
| CA002331099A CA2331099A1 (en) | 2001-01-16 | 2001-01-16 | Fire block conduit coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1479847A true CN1479847A (en) | 2004-03-03 |
| CN1257356C CN1257356C (en) | 2006-05-24 |
Family
ID=34140440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02803306 Expired - Fee Related CN1257356C (en) | 2001-01-16 | 2002-01-15 | Fire block conduit coupler |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1257356C (en) |
| AT (1) | ATE305582T1 (en) |
| HK (1) | HK1061423A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102605833A (en) * | 2011-01-19 | 2012-07-25 | 株式会社久保田 | Delay burning prevention device and construction method thereof |
| CN101802472B (en) * | 2007-06-22 | 2012-10-03 | 比勒工程公司 | Method and sealing system for sealing an annular space between a rigid conduit and a pipe, tube or duct extending through the conduit and made of a thermally weakenable material |
| CN109853970A (en) * | 2019-03-29 | 2019-06-07 | 中建八局第一建设有限公司 | Building piping installation equipment and application method |
-
2002
- 2002-01-15 AT AT02715339T patent/ATE305582T1/en not_active IP Right Cessation
- 2002-01-15 CN CN 02803306 patent/CN1257356C/en not_active Expired - Fee Related
-
2004
- 2004-04-15 HK HK04102679A patent/HK1061423A1/en not_active IP Right Cessation
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101802472B (en) * | 2007-06-22 | 2012-10-03 | 比勒工程公司 | Method and sealing system for sealing an annular space between a rigid conduit and a pipe, tube or duct extending through the conduit and made of a thermally weakenable material |
| CN102605833A (en) * | 2011-01-19 | 2012-07-25 | 株式会社久保田 | Delay burning prevention device and construction method thereof |
| CN109853970A (en) * | 2019-03-29 | 2019-06-07 | 中建八局第一建设有限公司 | Building piping installation equipment and application method |
| CN109853970B (en) * | 2019-03-29 | 2023-12-22 | 中建八局第一建设有限公司 | Building piping installation equipment and use method |
Also Published As
| Publication number | Publication date |
|---|---|
| HK1061423A1 (en) | 2004-09-17 |
| CN1257356C (en) | 2006-05-24 |
| ATE305582T1 (en) | 2005-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4049480A (en) | Method and apparatus for forming a joint in a confined space between two abutting ends of conduit liners | |
| US7131671B2 (en) | Transparent coupling | |
| US7845686B2 (en) | Restrained pipe joining system for plastic pipe | |
| US9200732B2 (en) | Flush joint pipe | |
| US5145216A (en) | Pipe connection assembly | |
| US7404872B2 (en) | PVC seismic coupling and method of installation | |
| CN101473157A (en) | Radius control | |
| CA2626239C (en) | A slip type pipe joint | |
| US20160305584A1 (en) | Apparatus and related methods for pipe coupling | |
| WO2003093714A2 (en) | Coupling assembly and method | |
| US3897088A (en) | Sealing boot | |
| US20090278321A1 (en) | Internal pipe seal | |
| CN1257356C (en) | Fire block conduit coupler | |
| US6615860B2 (en) | Fire block conduit coupler | |
| WO1999040355A1 (en) | Restrained bell and spigot fluid pipe connection | |
| US7125056B2 (en) | Toggle locked coupling | |
| JP2009162241A (en) | Pipe joint, its manufacturing method, manhole structure object using this, and pipe connection method | |
| US4245858A (en) | Conduit structure | |
| US4326327A (en) | Method of assembling a conduit joint | |
| US4377896A (en) | Method of assembling conduit joint | |
| EP1352191B1 (en) | Fire block conduit coupler | |
| US3606400A (en) | Pipe connector | |
| CN216595642U (en) | Silicon core pipe | |
| CN210141400U (en) | Multi-seal locking buckle socket | |
| AU2006303813B2 (en) | A slip type pipe joint |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |