JP2000334058A - Thermal expansion filler for through hole of fire wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily and cost-effectively attach a thermal expansion filler by forming the thermal expansion filler in a spiral form, which is disposed in through holes of fire walls and is wrapped around piping and cables, and when fire occurs, it is thermally expanded to close the through hole and crashes piping. SOLUTION: A thermal expansion filler (thermal expansion rubber) 1 is formed in a spiral form by spirally cutting the thermal expansion filler 1, which has been formed in a pipe shape. The thermal expansion filler 1 is enlarged by twisting it in the counter-spiral direction, a pipe 2 is inserted into the thermal expansion filler 1, and then the thermal expansion filler 1 is closed to wrap around the pipe 2. For this reason, the thermal expansion filler 1 is easily wrapped around piping, etc., at a field. This improves the handling ability of the thermal expansion filler 1, reduces the attachment time, and reduces the attachment cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for winding a pipe or a cable in a through hole in a fire protection compartment, and when a fire or the like occurs, the pipe expands due to thermal expansion and closes the through hole. It relates to a thermal expansion filler to be crushed.

[0002]

2. Description of the Related Art In a conventional fire protection section penetrating member, a thermal expansion material is mounted so as to hold a pipe in a case, for example, divided into two parts. It is a structure that expands and closes the through hole, and also crushes the pipe to prevent the spread of fire.

[0003]

For this reason, the case and the thermal expansion material are required to have the diameter of the pipe, the number of through holes, the size of the through hole,
It is necessary to prepare a large number of standard dimensions depending on the shape and the like, which leads to an increase in cost. Also, when constructing,
There is a disadvantage that it takes time and effort to correctly set and fix the case in the through hole. The present invention has been proposed in view of the above points, and an object of the present invention is to provide a thermal expansion filler for a fire protection section through-hole that can be constructed at low cost.

[0004]

In order to achieve the above object, the present invention according to claim 1 is characterized in that the thermal expansion filler for the through hole in the fire protection compartment is formed in a spiral shape. .

[0005]

[Function] A filler is wound around a pipe or a cable at a site. At this time, in the case of the filler formed in a spiral shape, after cutting the filler to a certain length, once unwrapping the spiral and winding it around a pipe, for example, the filler is returned to its original diameter by a spiral gusset. Calm down,
Fixed to piping and cables.

[0006]

An embodiment corresponding to the first aspect of the present invention will be described in detail with reference to FIG. In this embodiment, the thermal expansion filler (thermal expansion rubber) 1 has a spiral shape. As a means for forming the filler 1 in a spiral shape, for example, the filler 1 can be easily formed by cutting a thermally expanded filler formed in a pipe shape into a spiral shape. The thickness of the filler 1 and the width of the spiral are arbitrary.

As shown in FIG. 1, the filler of the present embodiment expands the diameter of the filler 1 by slightly twisting it in a direction opposite to the spiral direction, inserts a pipe 2 therein, and then expands the diameter. When the filler 1 is unwound, the diameter of the filler 1 is reduced and wound around the surface of the pipe 2 as shown in FIG. Alternatively, the diameter of the filler 1 may be reduced by winding it around the pipe 2 while unwinding the spiral.

FIG. 3 shows an example in which the spiral filler 1 according to the present invention is wound around a plurality of cables 3, and FIG. FIG. 5 is an explanatory view of a state in which the spiral filler 1 is wound up, positioned in the through hole 6 of the fire protection section 5, and filled with mortar or non-combustible filler 7 for construction. Table 1 shows an example of the components of the filler 1 described above.

[0009]

[Table 1]

[0010]

As described above, since the filler according to the present invention is formed in a spiral shape, it can be easily wound around a pipe or the like at the site.
As a result, the workability is good, the work time can be shortened, and since there is no need to incorporate a filler in the case as in the past, the cost is low, and the construction cost can be reduced. It is. Further, the filler according to the present invention can be used by being wound as it is on several pipes, cables or deformed pipes.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a filler formed in a spiral shape.

FIG. 2 is an explanatory view of a state in which a filler is wound around a pipe.

FIG. 3 is an explanatory diagram of a state in which a filler is wound around a plurality of cables.

FIG. 4 is an explanatory view of a state in which a filler is wound around a deformed pipe.

FIG. 5 is an explanatory view of a state where the processing is performed using the filler according to the present invention in the through hole of the fire protection compartment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Thermal expansion filler 2 Piping 3 Cable 4 Deformed pipe 5 Fire prevention section 6 Through hole 7 Mortar or noncombustible filler

Claims (1)

[Claims] 1. A thermal expansion filler for a fire protection section through-hole formed in a spiral shape.