JPH0484880U - - Google Patents

Description

[Brief explanation of the drawing]

Figure 1 is a longitudinal sectional view showing an example of the fire prevention structure of the multi-threaded synthetic resin pipe penetration part in the partition body of the present invention, Figure 2 is a front view of Figure 1, and Figure 3 is the same fire prevention measure. FIG. 4 is a front view of FIG. 3, and FIG. 5 is a longitudinal cross-sectional view showing the state of the structure in the event of a fire. FIG. Fig. 6 is a front view of Fig. 5, Fig. 7 is a longitudinal sectional view showing an example of a fire prevention structure of a synthetic resin pipe penetration part in a conventional partition body, Fig. 8 7 is a front view of FIG. 7, FIG. 9 is a vertical cross-sectional view showing another example of a fire prevention structure of a synthetic resin pipe penetration part in a conventional partition body, and FIG. 10 is a front view of FIG. 9. 1...High temperature thermally expandable molded body, 2 is a low temperature thermally expandable heat resistant material, A is a partition, B is a through hole, and C is a synthetic resin tube.

Claims (1)

[Scope of utility model registration request] At the penetrating portion of the multi-strand synthetic resin pipe in a partition body in which two or more synthetic resin pipes C are arranged side by side through the through hole B of the partition body A such as a floor or wall, the synthetic resin pipe C A high-temperature thermally expandable molded body 1 having a high foaming start temperature, which has been previously formed into a sheet shape, is inserted between the through-hole B and the high-temperature thermally expandable molded body 1 and the synthetic resin tube C. A fire prevention structure for a multi-striped synthetic resin penetration part in a partition body, characterized in that the structure is filled with a low-temperature thermally-expandable heat-resistant material 2 whose foaming start temperature is lower than that of the high-temperature thermally expandable molded article 1. .