一种屋面保温层防进水通风口结构

Abstract

本实用新型公开一种屋面保温层防进水通风口结构，包括通风口本体，通风口本体后端设有插入部，插入部用于插入排汽道内，插入部和排汽道形状相适应，通风口本体前端延伸至墙体后向下倾斜设有进风口，通风口本体内腔底部设有防水挑檐和第一引流部，当雨水通过进风口进入通风口本体内，雨水被防水挑檐阻挡，雨水沿第一引流部从通风口流出通风口本体。本实用新型的通风口本体和原有排汽管形成一进一排的流动形式提高气体交换效率，高效的通风排汽，加快干燥进度，实现节约施工或屋面维修的材料干燥时间，有利于提高整体施工效率。长期保持通风干燥，减少了屋面打拆维修的概率。通风口本体前端具有物理遮挡和坡度排水设计，避免雨水灌入风险。

Claims

1. A water intrusion resistant vent structure for a roof insulation layer, characterized by, The ventilation body (1) includes an insertion part (2) at the rear end of the ventilation body (1). The insertion part (2) is used to insert into the exhaust duct (11). The shape of the insertion part (2) and the exhaust duct (11) are compatible. The front end of the ventilation body (1) extends to the wall (9) and then tilts downward to provide an air inlet (10). The bottom of the inner cavity of the ventilation body (1) is provided with a waterproof eave (3) and a first drainage part (4). When rainwater enters the ventilation body (1) through the air inlet (10), the rainwater is blocked by the waterproof eave (3) and the rainwater flows out of the ventilation body (1) along the first drainage part (4).

2. The water-resistant vent structure for an insulation layer of a roof according to claim 1, wherein The vent body (1) is tubular. The front top of the vent body (1) is provided with a horizontal extension (5) protruding from the wall (9). The front end of the extension (5) is provided with a first water-blocking part (6) at an angle downward. The front bottom of the vent body (1) is provided with a second flow-guiding part (7) at an angle downward. The first water-blocking part (6), the second flow-guiding part (7) and the side walls of the vent body (1) together form the air inlet (10).

3. The water-resistant vent structure for an insulation layer of a roof according to claim 2, characterized in that, The lowest point of the first water-blocking part (6) is higher than the bottom surface of the inner cavity of the vent body (1).

4. The water-resistant vent structure for an insulation layer of a roof according to claim 2, wherein The first water-blocking part (6) and the second water-draining part (7) have the same tilt angle.

5. The water-resistant vent structure for an insulation over a roof according to claim 2, wherein The highest point of the first drainage section (4) is lower than the bottom surface of the inner cavity of the vent body (1). The height of the top surface of the first drainage section (4) decreases from the inside to the outside. The outer end of the first drainage section (4) is connected to the second drainage section (7). Rainwater flows out of the vent body (1) through the second drainage section (7) along the first drainage section (4).

6. The water-resistant vent structure for an insulation over a roof according to claim 1, wherein The waterproof eaves (3) extend horizontally above the first drainage part (4) from the bottom of the inner cavity of the vent body (1). Rainwater flows through the first drainage part (4) into the inner cavity of the vent body (1) and is blocked by the waterproof eaves (3).

7. The water-resistant vent structure for an insulation over a roof according to claim 1, wherein The vent body (1) is integrally injection molded from plastic.

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