JP2001065745A - Fire limit penetration tool set - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire limit penetration tool set whose part cost is inexpensive and whose execution is simple and which can minimize the effect giving to the building strength. SOLUTION: A thermal expansion rubbers 2, 4 are spread on the inner surface of an outlet box 1 or end cover 3 embedded and arranged in the floor or ceiling or one part of a fire limit wall C of A room and B room partitioned by the fire limit wall C. Further, the space between this outlet box 1 or end cover 3 are connected with a sheath pipe 5, in which a cable 6 or pipe is passed through. In such state, the thermal expansion rubber 2 or 4 is expanded thermally at the starting of fire and filled in the outlet box 1 or end cover 3. Meantime, the inlet of the sheath pipe 5 is blocked by crushing and the spreading of a flame or smoke, poisonous gas to an adjacent room through the sheath pipe 5 can not only be prevented but also a labor and cost for installing a penetration tool in the box 1 or cover 3 one by one are reduced. Further, the effect giving to a building strength can be reduced or eliminated by miniaturizing the box 1 and cover 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire section penetrating tool set constructed so as to bypass the floor or ceiling side of a fire section wall.

[0002]

2. Description of the Related Art When piping, wiring, and the like are performed via a fire protection partition wall, a thermal expansion rubber which thermally expands and closes the through hole when a fire occurs is provided inside a penetration portion of the fire protection partition wall. It is mandatory to attach a penetrating tool. As such a penetrating tool, there is known a type in which a thermally expandable rubber is mounted in a case having a split shape and a pipe or the like is embraced therein.

In addition, a sheath tube (flexible pipe) for passing piping and wiring is buried so as to bypass the floor side or ceiling side of the fire compartment wall without directly forming a through hole in the fire compartment wall. At both ends of the pipe, there is a case where an outlet box or end cover is attached to the floor or ceiling, or part of the fire compartment wall.

Conventionally, in such a case using a sheath tube, the thermal expansion rubber has the same structure as that mounted in the outlet box or end cover at the inlet of the sheath tube and in the above-described through hole of the fire compartment wall. At present, fire prevention treatment is performed by attaching a penetrating tool.

[0005]

Therefore, the cost of parts is high and the construction is troublesome. In addition, since the outlet box and the end cover are increased in size by mounting the penetrating tool, the volume buried in the concrete is reduced. And the problem cannot be ignored in the calculation of the strength of the building.

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above circumstances, and an object of the present invention is to make it possible to easily carry out construction at a low cost and to minimize the influence on the strength of a building. Accordingly, it is an object of the present invention to provide a fire compartment penetrating tool set in which the problem of strength does not occur.

[0007]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a fire-prevention compartment penetrating tool set, wherein a floor or a ceiling of adjacent rooms partitioned by a fire-prevention compartment wall or the fire-prevention compartment. Thermal expansion rubber is stretched on the inner surface of the outlet box or end cover embedded in the wall, and the outlet box or end cover is connected with a sheath tube, and a cable or piping is passed through the sheath tube to cause a fire. Sometimes the thermal expansion rubber thermally expands and fills the outlet box or end cover, and at this time, by crushing and closing the inlet of the sheath tube, flame or smoke or toxic gas or the like passes through the sheath tube. This is characterized in that it is configured to prevent it from spreading to the next room.

[0008]

According to the present invention, when a fire occurs, the thermal expansion rubber stretched in the outlet box or end cover located inside the room is thermally expanded and fills the box or cover. Then, the end of the sheath tube is crushed to close the sheath tube inlet. As a result, it is possible to prevent the flame, smoke, toxic gas and the like from spreading to the adjacent room via the sheath.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, an outlet box and an end cover are buried in a floor or a ceiling between adjacent rooms or a part of a fire protection partition wall, and are connected with a sheath pipe bypassing the fire protection partition wall. As the sheath pipe, a flexible pipe is selected from the viewpoint of workability.

[0010] The outlet box, the end cover and the sheath tube are made of metal or resin. The thermal expansion rubber stretched in the outlet box and the end cover is previously stretched in an amount sufficient to close the inlet of the sheath tube from the volume in the box and the cover and the coefficient of thermal expansion of the thermal expansion rubber. You. Next, an example of the composition of the thermal expansion rubber is shown in Table 1.

[0011]

[Table 1]

[0012]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; FIG. FIG. 1 is an example in which a fire-prevention section penetrating tool set is constructed so as to bypass the floor side of a fire-prevention section wall, FIG. 2 is an explanatory view of an outlet box, FIG. 3 is an explanatory view of an end cover, and FIG. ,
FIG. 5 is an explanatory view showing a state in which the thermal expansion rubber thermally expands to close the inlet of the sheath, and FIG. 5 is an explanatory view showing a state in which the thermal expansion rubber thermally expands and closes the inlet of the sheath in the end cover.

In FIG. 1, reference numeral 1 designates A
An outlet box buried in the floor on the side of the room A divided into the room and the room B, and the outlet box 1
A sheath tube connecting member 1a is attached to a part of the housing so as to extend the inner end 1b into the outlet box 1, and a thermal expansion rubber 2 is stretched on the inner surface as shown in FIG. Reference numeral 3 denotes an end cover buried in the floor on the B room side. The end cover 3 has a sheath connection member 3a attached to the end cover 3 so as to extend the inner end 3b into the end cover 3. On the inner surface, a thermal expansion rubber 4 is stretched.

Reference numeral 5 denotes a sheath tube for connecting the outlet box 1 and the end cover 3, and the sheath tube 5 has both ends connected to the sheath tube connecting members 1a and 3a and a fire prevention partition wall C. It detours on the floor side. 6
The cable passed through the sheath tube 5.

In the case of the embodiment, the outlet box 1 and the sheath tube 5 are attached to both ends of the sheath tube 5, however, the outlet box 1 and the end covers 3 may be attached to each other. Although both the outlet box 1 and the end cover 3 are buried on the floor side, either one of them may be buried in the fire protection partition wall C. Although the above embodiment is buried on the floor side, it may be installed on the ceiling side in the same manner as described above. In the embodiment, the sheath tube connecting members 1a and 3a are attached to the outlet box 1 and the end cover 3. However, the sheath tube connecting members 1a and 3a are stopped and the tip of the sheath tube 5 is extended directly into the outlet box 1 and the end cover 3. You may.

In the above embodiment, when a fire occurs in the room A or the room B, the heat expands the thermally expandable rubber 2 or 4 so that the inside of the box 1 and the cover 3 are closed as shown in FIG. 4 or FIG. At this time, the sheath connection member 1a or 3
The inner end 1b or 3b of a is crushed to close the inlet of the sheath tube 5, and the flame, smoke, toxic gas, etc.
It is prevented from spreading to the room or room B side.

[0017]

As described above, according to the present invention, the following effects can be obtained by stretching the thermal expansion rubber in the outlet box and the end cover. 1. Since the thermal expansion rubber is stretched inside the outlet box and the end cover, it is not necessary to attach a fire protection section penetrating tool at the time of construction. As a result, the cost of parts can be reduced, and the construction does not take much time. 2. In the outlet box and the end cover, the exposed area of the thermal expansion rubber is large, so that the thermal reaction speed is high. 3. The outlet box and the end cover can be made smaller than before because the penetrating device is not separately attached. As a result, the buried volume occupied when buried in the ceiling or wall is reduced, and the effect on the strength of the building is correspondingly reduced or can be neglected in design.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a construction example of a fire protection section penetrating tool set according to the present invention.

FIG. 2 is an explanatory diagram of an outlet box.

FIG. 3 is an explanatory diagram of an end cover.

FIG. 4 is an explanatory view of the inside of the outlet box when the thermal expansion rubber is thermally expanded.

FIG. 5 is an explanatory view of the inside of the end cover when the thermal expansion rubber is thermally expanded.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outlet box 1a Sheath pipe connection member 1b Inner end 2 Thermal expansion rubber 3 End cover 3a Sheath pipe connection member 3b Inner end 4 Thermal expansion rubber 5 Sheath pipe 6 Cable A, B Living room C Fireproof partition wall

Claims (1)

[Claims] 1. A thermal expansion rubber is stretched on an inner surface of a floor or ceiling between adjacent rooms partitioned by a fire protection partition wall or an outlet box or an end cover embedded in the fire protection partition wall, and the outlet box or the end. The covers are connected by sheaths, and cables or pipes are passed through the sheaths. When a fire occurs, the thermal expansion rubber expands and fills the outlet box or the end cover. A fire-prevention compartment penetrating device configured to prevent fire, smoke, toxic gas, or the like from spreading to an adjacent room via a sheath tube by crushing and closing the fire compartment.