JPS5818560B2 - Piping method for through-holes in fire protection compartments using pipe fittings with feeding lids and pipe fittings with feeding lids - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to piping work associated with buildings, and more specifically, the present invention relates to piping work associated with buildings, and more specifically, it is possible to install through holes in fire protection compartments using pipe fittings with pipe lids without backfilling the through holes. The present invention relates to a piping construction method that can be closed and closed, and a pipe joint with a feeding lid.

In plumbing work associated with a building, if a water supply/drainage pipe, distribution pipe, or other pipe penetrates a fireproof compartment such as a wall or floor of a fireproof structure, the hole in the fireproof compartment of the fireproof structure, that is, the pipe and the fireproof compartment. It is mandatory to fill the gaps between pipes with mortar or other non-combustible material, however, the above work (hereinafter referred to as backfilling of pipe through holes) is technically cumbersome and difficult, and for other economic reasons, it cannot be completed completely. It can be seen from time to time that this is not done.

In the event of a fire, this may cause the fire to spread to adjacent floors or rooms, or cause the spread of toxic gas.

Therefore, there is a need in the industry for specific technical proposals that can solve the above problems.

In order to meet the above-mentioned demands, the present invention provides a system for installing a feeder cover in the pipe penetration hole of the building frame when supplying, draining, or other pipes are installed through the building frame, such as floors and walls, which are fireproof compartments of a fireproof structure. By connecting one pipe to the other using a pipe joint, the pipe through-hole can be completely closed off without having to backfill the pipe, thereby preventing the spread of fire in the event of a fire. The object of the present invention is to provide a piping construction method and a pipe fitting with a pipe cover that can prevent the spread of harmful gases.

That is, the piping method of the present invention provides a joint that has a pipe socket at one end that can be connected to one pipe to be connected and a pipe socket at the other end that can connect to the other pipe to be connected. Piping is carried out using the pipe joint with a feed cover of the present invention, in which a feed cover is fitted to the outer periphery of the main body so that the fixed position can be adjusted,
After a pipe through-hole with a diameter larger than that of the through-piping member is previously provided at the part of the building frame where the pipe is planned to penetrate, one of the pipes to be connected is inserted into the pipe through-hole and the pipe joint with the feed cover is connected. At the same time, the other pipe to be connected is screwed or internally fitted into one end of the joint body to connect it, and the other pipe to be connected is connected by screwing or internally fitting into the other end of the joint body, and then fitted to the outer periphery of the successor body. The feeding lid is crimped and fixed to the peripheral surface of the pipe through-hole to connect the pipe through-hole.

Next, the present invention will be explained in detail.

First, to specifically explain the first example in which the extension pipe 1 shown in FIGS.
2 is a concrete slab for the floor of an arbitrary floor, which is a fireproof division of a fireproof structure in a building construction, and 2 is a pipe penetration hole installed at the planned pipe penetration site of the floor slab. A sleeve 2a is installed in the pipe through hole 2.
is fitted inside.

Reference numeral 3 denotes a joint body of a pipe joint with a feed cover, which is formed into a roughly cylindrical shape, and has a connecting part on the inner circumferential surface of the tube insertion port 4 at the upper end and the inner peripheral surface of the tube insertion port 5 at the lower end, respectively. Female threads 4a and 5a are cut into which the pipes 13 and 14 are screwed, and a male thread 6 is cut on the lower outer periphery of the joint body 3.

Reference numeral 1 denotes an annularly formed feeding lid, which has a boss 8 carved on the inner circumferential surface thereof, and a female thread 8a is screwed into the male thread 6 of the joint body 3, so that it can be fixed to the joint body 3 at a fastening position. Adjustably mounted.

The feed cover 1 has a diameter large enough to connect the piping through-hole 2, and when piping is connected, it is crimped to the upper surface of the floor slab 1 around the edge of the through-hole through a suitable packing 9. By doing so, the piping through holes 2 are connected.

In addition, fixing ears 1 are provided at point-symmetrical positions on the outer circumferential surface of the feeder lid 7.
0.10 is protruded in a bifurcated shape, and the feeding lid T is attached to the hole-in anchors 11, 11 which have been buried in the floor slab 1 in advance to correspond to the fixing ears 10.10. 10. It is fastened by a tightening pole [2, 12] screwed through the inside of the two prongs of 10.

Next, when asked about the piping construction method using the above-mentioned pipe fitting with a feed cover, the answer is that the sleeve 2a is fitted in advance to the planned piping penetration position, for example, the piping through hole 2 penetrated through the floor slab 1, and the wheel is fitted in a corresponding manner. In Anchor 11
．． Bury 11.

Next, when constructing the piping, first, the feed cover T is attached to the joint body 3, and the feed cover T is moved to an appropriate position.

Next, one pipe 13 to be connected, that is, the pipe 13 on the upstairs side, is joined by screwing it into the pipe inlet 4 on the upper end side of the joint body 3, and the other pipe 14 to be connected, that is, the pipe on the downstairs side. 14 into the pipe through hole 2 of the floor slab 1 and screwed into the pipe insertion port 5 on the lower end side of the joint body 3 to join.

However, at this time, a required packing 9 is interposed between the lower surface of the feed lid 7 and the upper surface of the floor slab 1.

By carrying out the above operations, both the pipes 13 and 14 on the upper and lower floors are connected by the joint body 3 of the pipe joint with a feed lid, and at the same time, the assembly position of the joint body 3 is determined.

After the above operation, the feed cover 1 is screwed on and crimped onto the upper surface of the floor slab 1 via the seal 9, and the fixing ears 10.10 are made to correspond to the hole-in anchors 11.11. , tighten with tightening poles N2 and 12, respectively.

That is, by crimping and fixing the feed cover 1 to the upper surface of the floor slab 1, which is the peripheral surface of the pipe through hole 2, the pipe through hole 2 is completely connected. 2 with mortar or noncombustible material, which is the so-called backfilling treatment of the pipe through hole 2, can prevent the spread of fire and harmful gases due to the open pipe through hole 2 in the event of a fire. This can be prevented.

In addition, by crimping and fixing the feed cover 7 to the upper surface of the floor slab 1, the feed pipe joint with a cover is firmly fixed to the floor slab 1, but in this case, the feed cover T is attached to the joint body 3. Since the tightening position can be changed freely, it is assumed that pipe 13.
There is an error in the length of the joint body 3 due to the error.
Even if the position of the feed cover 1 deviates, such an error can be completely absorbed by the feed cover 1.

FIG. 3 shows the piping mode of the extension piping system using the above-mentioned pipe fitting with a feed cover. This can also be applied to No. 16 through piping.

That is, when such a pipe 1T extending in the horizontal direction is connected to the pipes 13 and 14 extending in the vertical direction, that is, a rigid pipe, the connection is normally made using a multi-port pipe joint 18. Furthermore, when piping is installed on the partition wall 15 or the beam 16, the pipe joint with a feed cover of the present invention is used on both walls, and the pipe joint with a double feed cover is used for the partition wall 15 or the beam 16.
The connecting pipes 19 are connected to each other by a connecting pipe 19 inserted into a pipe through hole 2 provided through the pipe 6 .

Therefore, the piping through hole 2 is blocked at both ends by the feed cover 7 of the pipe joint with a feed cover, thereby preventing the flow of smoke, flame, gas, etc.

In addition, when using a pipe joint with a feeding lid for the pipe through hole 2 of the floor slab 1, it can be applied to both sides of the floor slab 1, that is, the bottom side, in the same way as in the case of the partition wall 15 and the beam 16.
In that case, the continuous effect of the pipe through hole 2 will be further improved.Next, the second embodiment of the present invention shown in FIGS. 4 and 5 will be explained in detail. A concrete plate for the floor of any floor in a building, that is, a slab, is used. Reference numeral 22 is a pipe through hole penetrated through the slab 21, and within this pipe through hole 22, a uriap 22a is installed on its inner circumferential surface, as will be described later. It is fitted inside so as to actively maintain a gap G'' of an appropriate size between it and the outer circumferential surface of the connecting pipe of the pipe joint with a feed cover.

Reference numeral 23 designates a joint body of a pipe joint with a feed cover, which is formed into a hollow cylindrical shape, and has a female thread 24a carved into the inner circumferential surface of a pipe insertion port 24 at its upper end into which a packing retainer attachment 42, which will be described later, is screwed. There is.

25 and 26 are flexible closure sealing gaskets 39, which will be described later.
It is a stepped engagement surface that fits the upper flange 40 and the lower 7 flange 41, respectively, and is provided in a ring at the center of the joint body 23.

Reference numeral 27a denotes a female thread carved on the inner circumferential surface of the tube insertion port 27 at the lower end of the joint body 23 in order to screw the upper end of the I-pipe 17 described later, and 28 denotes a female thread on the lower outer periphery of the joint body 23. The feed cover attachment engraved on the is a male screw for use.

Reference numeral 29 denotes an annular feeding lid, and a screw thread 30a carved on the inner circumferential surface of the boss 30 is connected to the male thread 28 of the joint body 23.
It is attached to the joint body 23 so that its tightening position can be adjusted by being screwed into the joint body 23.

The feed cover 29 has a diameter large enough to close off the piping through hole 22, and when piping is installed, it must be crimped onto the upper surface of the floor slab 21 at the periphery of the through hole via a suitable packing 31. The piping through hole 22 is closed off by.

Furthermore, fixing ears 3 are provided at point-symmetrical positions on the outer peripheral surface of the feeding lid 29.
2.32 is protruded in a fork shape, and the feed lid 29
(34.34) is a tightening pole (34.34) that is screwed into the hole-in anchor 33.33 embedded in the floor slab 21 in advance so as to correspond to the fixing ear 32. It is fastened by.

Reference numeral 35 designates a connecting pipe of a pipe joint with a feeding lid, the upper end of which is screwed into the female thread 27a of the joint body 23, and the lower end thereof connected to a funnel-shaped Ω odd-shaped joint 36.

37 is a main pipe to be piped into the downstairs room, and its upper end is connected to the lower end of the irregularly shaped joint 36.

38 is a main pipe that is piped into the room on the upper floor, and is connected to the joint body 2.
It is inserted into the center of 3.

However, the insertion depth is set with enough margin to accommodate variations in the length in the axial direction.

39 is a flexible closing body sealing gasket, which is made of a highly flexible elastic material and is formed into a truncated conical cylinder shape tapering downward;
The joint main body 23
stepped engagement surfaces 25 and 2 formed on the inner circumferential surface of the central portion of the
6 upper 7 langes 40 and lower 7 langes 41
are formed respectively.

The packing 39 is interposed between the inner circumferential surface of the joint body 23 and the outer circumferential surface of the main pipe 38 on the upper floor, and is further provided with a packing holding attachment screwed into the female thread 24a at the upper end of the joint body 23. The upper flange 40 and lower 7 flange 41 are pressed from above by the joint body 2.
3, and the lower inner circumferential surface of the packing 39 is in close contact with the outer circumferential surface of the main pipe 38, thereby maintaining airtightness within the pipe.

Further, an annular O-ring groove 43 is formed in a part of the inner circumferential surface of the seal presser attachment 42.
The airtightness inside the pipe is also maintained by the O-ring packing 44 fitted therein being in close contact with the outer circumferential surface of the main pipe 38.

Next, we will introduce the piping construction method using the above-mentioned pipe fitting with a feeding lid in the 6th section.
To explain concretely with reference to the figure, the slab 2 of each floor is
Sleeves 22a are fitted into the pipe penetration holes 22 that are installed at the planned penetration positions of pipes 1 and 1, and hole-in anchors 33 for attaching the joint body 23 are installed in accordance with the reductions.
Bury 33.

When constructing the piping, first move the feed cover 29 attached to the joint body 23 to an appropriate position, connect the joint body 23 and the connecting pipe 35, and then connect the connecting pipe 35.
5 into the sleeve 22a.

However, at this time, a packing 31 is interposed between the lower surface of the feed lid 29 of the joint body 23 and the upper surface of the floor slab 21.

On the other hand, the deformed joint 36 is connected to the upper end of the main pipe 37, and the seal retainer attachment 42, in which the flexible closure sealing gasket 39 and the O-ring gasket 44 are inserted into the lower end, is loosely fitted into the main pipe 37. Attach a multi-port pipe joint 45 for branch pipe connection to the position.

(See the chain line diagram in FIG. 6.) The main pipe assembled as described above will be referred to as main pipe assembly P hereinafter.

Next, as shown in FIG. 6(c), the lower end of the main pipe assembly P is inserted into the joint body 23 which is temporarily secured to the sleeve 22a on the floor of the lower floor. The irregular joint 36 attached to the upper end of P is connected to the connecting pipe 35 loosely inserted into the sleeve 22a on the floor of the upper floor in FIG.
By screwing together the lower ends of the pipe joint bodies 2 on the upper and lower floors.
3°23, connecting pipe 35, 35 and main pipe assembly P are integrally connected.

(Refer to the solid line diagram in Figure 6.) However, in this case, the main pipe assembly P
Connect the inner multi-port pipe fitting 45 to the branch pipe (
(not shown).

After the above-mentioned operation VF-, by screwing forward the feed cover 29, it is crimped onto the upper surface of the floor slab 21 via the gasket 31, and the fixing ears 32 and 32 are attached to the hole-in anchor 38.
．． After adapting to 38, each tightening port) 34.3
Tighten at step 4.

That is, by crimping and fixing the feed cover 29 to the upper surface of the floor slab 21, which is the peripheral surface of the piping through hole 22, the piping through hole 22 is completely delayed and closed. The pipe through hole 22 can be filled with mortar or noncombustible material without having to backfill the pipe through hole 22.
In the event of a fire, it is possible to prevent the spread of fire and the spread of toxic gas due to the piping through hole 2 being open.

In addition, by crimping and fixing the feeder lid 29 to the upper surface of the floor slab 21, the pipe joint with the feeder lid is firmly fixed to the floor slab 21, but in this case, the feeder lid 29 Since the tightening position can be changed freely, even if there is an error in the length of the main pipe 31 in the pipe axial direction and the position of the joint body 23 deviates due to that error, such an error will not occur. It can be completely absorbed by the feeding lid 29.

In addition, in the main pipe piping constructed as described above, the joint body 23 and the main pipe 37 are connected to the flexible closure sealing packing 3.
9 and an O-ring packing 44, the joint main body 23 is elastically supported to the floor slab 21 by a packing 31 interposed on the lower surface of the feeding lid 29.

Therefore, in the piping described above, various errors in piping construction, such as length errors in the pipe axis direction, eccentricity in the direction perpendicular to the pipe axis, and declination in the pipe axis direction, are absorbed at each level, and other Since there is no cumulative effect on the floors, it is possible to prevent the expansion, contraction and displacement of piping due to thermal effects, as well as the occurrence of cracks and breaks in piping and leakage of fluids in the pipes due to shaking and vibration of the building. .

Above, we have explained the construction methods and the structure of pipe joints with feeder lids for vertical main pipes that are piped through each floor surface in building construction, but regarding horizontal main pipes that are piped through the partition walls of buildings. can be carried out in exactly the same way, and in the above embodiment, the case where the main pipe members are assembled separately in advance and then connected is illustrated, but the present invention is not limited to this, and direct connection is also possible. It is.

In addition, the pipe joint with a feeding lid of the present invention has the following features as shown in FIG.
It is also possible to apply it to bathroom units.

In recent years, bathroom units, restroom units, etc., which are often adopted, are simply referred to as bathroom units.

), a conventional drainage joint 41 is attached to a waterproof pan 46 that is molded to fit the shape of the floor, wall, etc. (made of FRP (gas fiber reinforced polyester resin), etc.), and the joint 47 Floor slab 1 (hereinafter simply referred to as slab)
A drain pipe 48 is connected to the joint 41 on the outside of the slab 1, and the gap between the drain pipe 48 and the pipe through hole 2 is filled with mortar, Normally, it was backfilled with cement, etc., but this work was troublesome, and especially for floor slab 1, it was extremely inefficient because cement, mortar, etc. fell unexpectedly when working upwards. However, the present invention is also extremely effective for the above-mentioned bathroom unit.

That is, the pipe joint with a feed cover according to the first embodiment of the present invention is provided at the slab penetration site as shown in the figure, and the pipe through hole 2 is tightly tightened with the feed cover 7 of the joint on the outer surface of the slab.
Air circulation is blocked, and there is no need to backfill the pipe through-hole 2. However, at this time, if the through-hole 2 is filled with a refractory material such as asbestos, the fire-resistant strength of the through-hole 2 can be further increased. Needless to say.

It goes without saying that the above technique can also be applied to a water supply pipe that penetrates a partition wall and extends to the waterproof pan.

Further, the pipe joint with a feeding lid of the present invention can be modified as shown in FIGS. 8 to 10.

That is, in each of the embodiments described above, the feeding lid 1, 29
are screwed directly into the joint bodies 3 and 23, but the pipe joint with a feed cover shown in Figs. 8 to 10 has a feed cover T.
, 29 are loosely fitted to the outer periphery of the joint bodies 3 and 23.
, 29a, and tightening nuts (7b) which are screwed onto the external threads 6, 28 of the joint bodies 3, 23.

29b, and during piping construction, by tightening the tightening nuts 7b, 29b, the lid part 7a,
29a can be crimped onto the slabs 1 and 21 without turning, and the other configurations are the same as those of the above-mentioned embodiment.

Therefore, when constructed in this way, there is an advantage that the gaskets 9, 31 interposed between the feed lids 7, 29 and the slab 1.degree. 21 can be crimped without causing twisting or displacement.

Note that the pipe joint with a feeding lid of the present invention is not only suitable for sockets, but also for sockets.
Of course, it can be applied to L joints, T joints, YT joints, etc., and in the case of L joints in particular, the distance between the bottom surface of the slab and the horizontal piping can be reduced, so it is effective when the ceiling is low. .

As described in detail above, in the piping method of the present invention, supply is provided to a single building frame such as a floor or wall, which is a fireproof section of a fireproof structure.
When installing drainage pipes or other pipes through-piping, it is possible to connect one pipe to the other using a pipe fitting with a feed cover.
Mortar or non-combustible materials: The piping through holes can be completely interconnected with the feeder lid without having to backfill them with mortar or non-combustible materials. It is capable of preventing the spread of fire and the spread of toxic gas, and satisfies the fire prevention provisions of not only the Building Standards Act but also the Fire Service Act.

Furthermore, since there is no need to backfill the pipe through holes, the pipe construction is simplified, which is extremely advantageous both technically and economically.

Furthermore, in the pipe joint with a feed cover of the present invention, the feed hole is attached to the joint body so that its fixed position can be changed, so that the position of the joint body in the piping system can be adjusted, so that the connection can be made during piping construction. Even if an error occurs in the length of the pipe to be used and the position of the joint body deviates accordingly, there is an advantage that such an error can be completely absorbed by the feeding lid.

In addition, the pipe joint with a feeding lid of the present invention has an appropriate number of protruding ears on the outer periphery of the feeding lid for fixing the lid to hole-in anchors buried in the floor, etc. Since the feeder cover can be fixed by tightening with bolts, it prevents the feeder cover from loosening due to vibration etc. after installation, and ensures the fixed state of the feeder cover, that is, the pipe joint, for a long period of time. It is possible to maintain the sealing effect of the piping through hole.

[Brief explanation of drawings]

The drawings show embodiments of the present invention; FIG. 1 is a cross-sectional view of the reins showing a pipe joint with a feeding lid according to the first embodiment, FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1, and FIG. An explanatory diagram showing a piping mode using the above-mentioned pipe fitting with a feeding lid, FIG. 4 is a cross-sectional view of the reins showing the pipe fitting with a feeding lid of the second embodiment, and FIG. 5 is a -V in FIG. 4. 6 is an explanatory diagram showing a piping mode using the pipe fitting with a feeding lid, and FIG. 1 is a cross-sectional view of the reins showing an application example in which the pipe fitting with a feeding lid is applied to a bathroom unit. FIGS. 8 to 10 are cross-sectional views of the reins, respectively, showing modifications of the pipe joint with a feeding lid. 1.21: Floor slab, 2, 22: Piping through hole, 3.2
3: Fitting body, 4, 5, 24. 27: Pipe insertion port, ? , 29
: Feed lid, 13, 14: Pipes to be connected.

Claims (1)

[Scope of Claims] 1. A step in which a pipe through hole having a diameter similar to that of the penetrating piping member is previously provided at a portion of the building frame where the pipe is to be penetrated, and one of the pipes to be connected is inserted into the pipe through hole. and a step of screwing or fitting the limb pipe into one end of the joint body to join it; a step of joining the other pipe to be connected by screwing or fitting it into the other end of the joint body; and each of the above steps. After completion of the step, the feed cover fitted to the outer periphery of the joint body is crimped and fixed to the peripheral surface of the pipe through hole to close the pipe through hole. Piping method for through-holes in fire protection compartments using pipe fittings. 2. On the outer periphery of the joint body, one end has a tube insertion port into which one of the pipes to be connected can fit and the other end has a tube insertion port into which the other tube to be connected can fit into, A feeding lid whose fixed position can be changed is attached to adjust the position of the joint body in the piping system, and a hole-in anchor buried in the floor etc. is attached to the outer peripheral edge of the feeding lid. A pipe joint with a feeding lid, characterized by having an appropriate number of protruding ears for fixing the mold to be fixed.