KR-20260062526-A - Hood cap for ventilation set

KR20260062526AKR 20260062526 AKR20260062526 AKR 20260062526AKR-20260062526-A

Abstract

The present invention relates to a hood cap set, and more specifically, the inner surface of both ends of a through sleeve installed on a wall has screw threads formed thereon, and the ventilation hood cap coupled to the through sleeve has screw threads formed on the outer surface of a connecting pipe coupled to a hood head, so that the hood cap is installed by inserting it into one end of the through sleeve and tightening it with a male and female screw connection, and then maintains a firmly coupled state without moving even over time or under external influences including strong winds, as well as preventing air leakage between the through sleeve and the connecting pipe.

Inventors

강희준

Assignees

강희준

Dates

Publication Date: 20260507
Application Date: 20241029

Claims (4)

A through sleeve (2) installed on a wall (10) of a building, comprising a first assembly tube (11) having a screw thread (8) formed on the outer circumference of the other side and a second assembly tube (12) having a screw thread (8) formed on the inner circumference of one side, wherein the first and second assembly tubes (11, 12) are joined in a male and female screw manner to adjust the length, and A hood cap set (100) comprising a hood cap (1) consisting of a ventilation hole (5) that is coupled to one end of a first assembly pipe (11) located outside a wall (10) of a building and discharges indoor air to the outside, a head hood (3) formed integrally with a flange cover (6) that is in close contact with the wall on one side of the ventilation hole (5), and a connecting pipe (4) having one side coupled to the flange cover (6) of the head hood (3) and the other side coupled to a through sleeve (2), A through sleeve (2) having a screw thread (8) formed on one side of the inner circumference of a first assembly pipe (11) located outside the wall of the above building; and A hood cap (1) having a screw thread (8) formed on the outer surface of the above connecting pipe (4); and A hood cap set characterized by inserting the outer surface of the connecting pipe (4) into the inner surface of the first assembly pipe (11) and tightening the connection in a male-female screw manner.
A hood cap set according to claim 1, characterized in that the hood head (2) has a sealed indoor inflow prevention part (7) integrally formed between the ventilation hole (5) and the flange cover (6), with the length extended by more than 1 time the size of the ventilation hole (5).
A hood cap set according to claim 1, characterized in that a ring-shaped finishing pad (13) is fitted and coupled to the outer surface of the connecting pipe (4) and positioned on one side of the flange cover (6) to be in close contact with the wall (10).
A hood cap set according to claim 1, characterized in that a screw thread (8) is formed on the other inner circumference of the second assembly tube (12) so that it can be installed on a wall regardless of the position of the first and second assembly tubes (11, 12).

Description

Hood cap set {Hood cap for ventilation set} The present invention relates to a hood cap set in which screw threads are formed on the inner surface of both ends of a penetration sleeve installed on a building wall, and a ventilation hood cap coupled to the penetration sleeve has screw threads formed on the outer surface of a connecting pipe coupled to a hood head, and the hood cap is installed by inserting it into one end of the penetration sleeve and tightening it with a male and female screw connection, thereby maintaining a firmly coupled state without moving even over time under external influences including strong winds, and preventing air leakage between the penetration sleeve and the connecting pipe. Generally, since the interior of a building has a sealed structure, if this sealed state persists for a long time, the indoor air becomes contaminated, adversely affecting the health of residents and, in severe cases, causing diseases such as respiratory illnesses. Indoor air in buildings becomes polluted by dust and various foreign substances generated by occupants' activities, the production of carbon dioxide from respiration, and the use of gas cooking appliances; prolonged exposure to this air can harm one's health. Therefore, a hood cap equipped with a mesh screen or a partition is installed at the opening of the duct installed for indoor ventilation of a building to prevent foreign substances, such as rainwater and wind-blown dust, from entering the duct. When installing the above hood cap on the exterior wall of a building, an exhaust hood cap for discharging indoor air to the outside and an intake hood cap for drawing in outdoor air and supplying it to the interior are installed on the exterior wall of the building at a certain distance apart. In order to install the above hood cap, the building wall requires a penetration hole through which conduits for ventilation, heating and cooling, sprinklers, electrical wiring, sewage, HVAC ducts, fire extinguishers, gas pipes, air conditioners, etc., can pass. Therefore, to create a through hole in a building, a through sleeve having a constant diameter and width is fixed to the inside of the formwork, and then concrete is poured to form a through hole in the wall. In addition, the disclosed through sleeve forms a pair of first and second assembly tubes, and a screw thread is formed on the outer surface of the first assembly tube and a screw thread is formed on the inner surface of the second assembly tube so that the first and second assembly tubes are connected in a male-female screw manner and rotated, and installed by adjusting the length according to the thickness of the wall. After installing the penetration sleeve on the wall in the manner described above, the connecting pipe of the hood cap is inserted into the penetration hole of the first assembly pipe located outside the building and connected, and a piping pipe is fitted and connected to one end of the second assembly pipe located inside. A packing is attached to the outer surface of the above connecting pipe so that no gap is created between it and the inner surface of the first assembly pipe, thereby preventing air leakage. However, after a certain period of time has passed since the hood cap was installed, the packing corrodes and its shape deforms, causing a gap to form between the inner surface of the first assembly pipe and the packing, resulting in air leakage. Due to the gap between the inner surface of the first assembly pipe and the packing, the hood cap is not fixed due to external influences including wind, and the hood cap separates from the penetration sleeve and falls to the ground due to repeated movement. Therefore, if a hood cap installed in multi-unit dwellings, including apartments, detaches and falls, it is located high above the ground, making it difficult to install and resulting in high installation costs. Meanwhile, the hood cap is generally configured with a hood head having a cylindrical shape with one or more ventilation holes formed on its side and a flange cover integrally formed so that one side is in close contact with a wall adjacent to the ventilation holes, and a structure in which one end is inserted and connected to one side of the flange cover of the hood head and the other end is fitted and connected to a first assembly tube of a through sleeve. Therefore, at least two hood caps for intake and exhaust are installed on the exterior walls of the building for each household. However, if water droplets flowing from the hood cap due to rainwater or condensation run down the exterior wall, the building's exterior wall becomes contaminated and dirty. Additionally, water leakage may occur as water enters the interior of the hood head through one or more ventilation holes and flows into the connecting pipe and penetration sleeve. Furthermore, if rainwater enters the connecting pipe and penetration sleeve, mold may develop, leading to the problem of contaminated air