CN1257356C - Fire block conduit coupler - Google Patents
Fire block conduit coupler Download PDFInfo
- Publication number
- CN1257356C CN1257356C CN 02803306 CN02803306A CN1257356C CN 1257356 C CN1257356 C CN 1257356C CN 02803306 CN02803306 CN 02803306 CN 02803306 A CN02803306 A CN 02803306A CN 1257356 C CN1257356 C CN 1257356C
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- Prior art keywords
- pipe joint
- mentioned
- pipe
- joint
- expanding material
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- Expired - Fee Related
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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
Technical field
The present invention relates to a kind of joint for plastic tube with fiery blocking ability.
Background technique
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 important.
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.
Shown a kind of pipeline pipe connecting head in the U. S. Patent 4,143,671 by the Olson application of on March 13rd, 1979 issue, 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 have pipeline to enter the control of the pipe joint degree of depth, therefore, the accurate assembling of pipe joint can not be arranged.And the pipe joint of Olson does not expand and can not cut off parts as dividing plate, even owing to there be the excessive of parts of cut-out to subside, the pipe joint of Olson can not cut off parts as pipeline.
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 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.
Description of drawings
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.
Embodiment
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 pipe fitting identical materials 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 frpf 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, as noted earlier, pipe joint is whole to be to make with PVC and graphite combination.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 this pipe joint can be used for connecting the pipeline by any other type of any other type building fire cigarette partitioned portion.
Although described various preferred embodiment of the present invention in detail, those skilled in the art knows 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 (10)
1. a pipe joint (1), has the stub area made from plastic materials (5,5), be used for plastic pipe (P1, P2) overlapping accurately is located by connecting on each end of described pipe joint, above-mentioned plastic tip zone by a zone line (9) separately, this zone line (9) limits a fluid flowing passage (7) that passes the aforementioned tube joint, described zone line comprises expanding material, the amount of this expanding material is enough to cause the obstruction fully of passage when pipe joint stands to cause the condition that expanding material expands, the aforementioned tube joint is characterised in that, above-mentioned zone line (9) comprises with multiple expanded plastics material and mixes a kind of solid composite of making mutually, so that form one around the above-mentioned wall that passes the passage of pipe joint.
2. pipe joint as claimed in claim 1 is characterized in that, above-mentioned end zone (5,5) comprise the socket of its internal diameter greater than above-mentioned fluid flowing passage (7) internal diameter, and the aforementioned tube joint has uniform external diameter along its length.
3. pipe joint as claimed in claim 2 is characterized in that, aforementioned tube joint (1) has the structure of a whole molding, and stub area (5,5) also is the solid composite manufacturing with expanding material and plastic materials simultaneously.
4. pipe joint as claimed in claim 1, it is characterized in that, the expanding material of above-mentioned zone line (9) directly is exposed under the above-mentioned fluid flowing passage (7), and be exposed to the outside of aforementioned tube joint, thereby above-mentioned expanding material is freely to inside and outside the two expansion of above-mentioned pipe joint.
5. pipe joint as claimed in claim 1 is characterized in that, each all has above-mentioned socket (5) one and be about half wall thickness of aforementioned tube joint zone line (9) wall thickness.
6. pipe joint as claimed in claim 2 is characterized in that, a pipe end block (6) leads to each end of above-mentioned fluid flowing passage (7).
7. a pipe joint (11), has plastic tip zone (15,17), described plastic tip zone (15,17) with plastic pipe (P3, P4) overlapping accurately is sealably coupled on each end of aforementioned tube joint the location, above-mentioned plastic tip zone (15,17) by a zone line (13) separately, this zone line (13) limits the fluid flowing passage that passes the aforementioned tube joint, above-mentioned zone line comprises expanding material, the amount of this expanding material is enough to cause the obstruction fully of passage when pipe joint stands to cause the condition that expanding material expands, the aforementioned tube joint is characterised in that, above-mentioned zone line comprises a kind of solid composite, described composition mixes manufacturing mutually with expanding material and a kind of plastic carrier, so that form one around the above-mentioned wall that passes the passage of pipe joint, and, above-mentioned end zone (15,17) separately make, and assemble telescopicly and be sealed to the opposite end of aforementioned tube joint zone line (13), the opposite end of described zone line provides the surface of described pipe joint internal pipeline end of stroke.
8. pipe joint as claimed in claim 7 is characterized in that, above-mentioned zone line (13) and stub area (15,17) comprise crimping section.
9. a pipe joint (31), has the plastic tip zone, described plastic tip zone accurately the location is sealably coupled to the plastic pipe overlapping on each end of described pipe joint, the aforementioned tube joint comprises a zone line (33) between the above-mentioned end zone, this zone line (33) limits the fluid flowing passage that passes pipe joint, above-mentioned zone line comprises expanding material, the amount of this expanding material is enough to produce the obstruction that causes passage when pipe joint stands to cause the condition that expanding material expands, the aforementioned tube joint is characterised in that, described zone line comprises a kind of solid composite, this solid composite mixes combination manufacturing mutually with expanding material and a kind of plastic carrier, so that form a wall (33) around the passage that passes the aforementioned tube joint, a vinyl cover (35) is enclosed within above-mentioned around passing on the conduit wall (33) of pipe joint, above-mentioned lid (35) extends with respect to above-mentioned wall (33), so that the opposite end of above-mentioned lid stretches out the outside of above-mentioned wall, provide the stub area of aforementioned tube joint.
10. pipe joint as claimed in claim 9 is characterized in that, above-mentioned lid (35) comprises some wall openings (37), so that the lid (35) that helps expanding material to pass the aforementioned tube joint expands outwardly.
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 CN1479847A (en) | 2004-03-03 |
| CN1257356C true 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) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0712271D0 (en) * | 2007-06-22 | 2007-08-01 | Beele Eng Bv | Method and sealing system for sealing an annular space between a rigid conduit and a pipe, tube or duct extending through the conduit |
| JP5679834B2 (en) * | 2011-01-19 | 2015-03-04 | 株式会社クボタ | Fire spread prevention device and its construction 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 |
-
2002
- 2002-01-15 CN CN 02803306 patent/CN1257356C/en not_active Expired - Fee Related
- 2002-01-15 AT AT02715339T patent/ATE305582T1/en not_active IP Right Cessation
-
2004
- 2004-04-15 HK HK04102679A patent/HK1061423A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ATE305582T1 (en) | 2005-10-15 |
| HK1061423A1 (en) | 2004-09-17 |
| CN1479847A (en) | 2004-03-03 |
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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 |