JPS61123349U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a schematic vertical sectional view for explaining one embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the same. FIG. 3 is a longitudinal sectional view of the same essential parts, FIG. 4 is a longitudinal sectional view of the essential parts in another embodiment, and FIG. 5 is a schematic longitudinal sectional view for explaining another embodiment of the present invention. . 1...Intake cylinder, 1a...Outside air inlet, 1b...
Outside air outlet, 2...Relay tank, 2a...Outside air intake, 2b...Outside air distribution port, 3...Outside air conduction pipe,
4...Outside pipes, 5...Heater, 12...Underground space.

Claims (1)

[Claims for Utility Model Registration] 1. An intake cylinder whose upper end is exposed above the ground and has an outside air inlet, and whose lower end is buried underground and has an outside air outlet; A relay tank is installed in an underground space heated by a heater and has an outside air intake port and an outside air distribution port. The outside air distribution port of the relay tank and the inside of the building on the ground are connected to each other by means of an outside distribution pipe. 2. The device for introducing outside air into a building interior as set forth in claim 1 of the utility model registration, wherein the relay tank has a number of fins integrally protruding from its outer periphery. 3. The intake pipe is provided along the outer wall of the building by using the outer wall of the building so that the outer wall constitutes a part of the intake pipe. outside air introduction device.