KR-20260000596-U - Hood cap for ventilation

Abstract

The present invention relates to a screw-type ventilation cap, and more specifically, it is characterized by having a screw thread formed on the outer surface of a connecting pipe body that is coupled to a through sleeve, and being tightened and coupled to the through sleeve in a male-female screw manner so as to maintain a firmly fastened state without moving even under external influences including wind.

Inventors

• 강희준

Assignees

• 주식회사 씨앤씨코리아
• 강희준

Dates

Publication Date

20260507

Application Date

20241030

Claims (3)

1. In a ventilation cap (1) composed of a head (2) having a ventilation hole (3) formed therein and a connecting pipe body (4) having one side connected to the head (2), A screw-type ventilation cap characterized by having a spiral portion (5) formed on the outer surface of the connecting pipe (4).
2. A screw-type ventilation cap according to claim 1, characterized in that a spiral portion (5) is formed along the longitudinal direction on the outer surface of the connecting pipe body (40) in whole or in part.
3. A screw-type ventilation cap characterized in that, in claim 1, a packing (8) is fitted into the spiral portion (5) of the connecting pipe (4).

Description

Screw-type ventilation cap {Hood cap for ventilation} The present invention relates to a screw-type ventilation cap in which a screw thread is formed on the outer surface of a connecting pipe body that is coupled to a through sleeve, and which is tightened and coupled to the through sleeve in a male-female screw manner, thereby maintaining a firmly fastened state without moving even under external influences including wind. 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 ventilation 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. In installing the above ventilation cap on the exterior wall of a building, an exhaust ventilation cap for discharging indoor air to the outside and an intake ventilation 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. To install the above ventilation cap, a through sleeve having a certain diameter and width is fixed to the inside of the formwork to create a through hole in the building wall, and then concrete is poured to form the wall. When the above formwork is removed to complete the wall, and both ends of the penetration sleeve are exposed on both sides of the wall, the connecting pipe of the ventilation cap is inserted and connected through the coupling hole of the penetration sleeve located on the outside. When a packing is fitted to the outer surface of the above-mentioned connector and inserted into a through sleeve, the packing blocks and seals the gap between the inner surface of the coupling hole and the outer surface of the connector, thereby fixing it in place so that it does not move and preventing air leakage. However, after installing the ventilation cap and using it for a long period, the packing corrodes due to external influences, causing deformation. This results in a gap forming between the joint hole of the penetration sleeve and the connecting pipe body, leading to air intake and leakage. Additionally, because the ventilation cap is not secured due to external influences, including wind, repeated movement causes it to detach from the penetration sleeve and fall to the ground. Meanwhile, there are problems such as work difficulties and high installation costs because workers must descend from the rooftop to install ventilation caps in multi-unit dwellings, including apartments. FIG. 1 is a perspective view illustrating the ventilation cap of the present invention. FIG. 2 is a front view illustrating the ventilation cap of the present invention. FIG. 3 is a front view illustrating a state in which a spiral portion is formed only in a part of the ventilation cap of the present invention. FIG. 4 is a front view showing the state in which a spiral portion is formed over the entire ventilation cap of the present invention. FIG. 5 is a partial cross-sectional view illustrating the ventilation cap of the present invention. FIG. 6 is a cross-sectional view illustrating the usage state of the ventilation cap of the present invention. FIG. 7 is a cross-sectional view illustrating the usage state of the ventilation cap of the present invention. In order to achieve the above-mentioned objectives and effects, the present invention will be explained in detail below with reference to the attached drawings. FIG. 1 is a perspective view illustrating the ventilation cap of the present invention, FIG. 2 is a front view illustrating the ventilation cap of the present invention, and FIG. 5 is a partial cross-sectional view illustrating the ventilation cap of the present invention. The screw-type ventilation cap (1) of the present invention is composed of a head (2) having a ventilation hole (3) formed therein and a connecting pipe body (4) having one side connected to the head (2). A spiral portion (5) is formed on the outer surface of the above-mentioned connecting pipe (4), and the spiral portion (5) is formed in all or only in part along the longitudinal direction of the connecting pipe (40). When a spiral portion (5) is formed on the entire outer surface of the above-mentioned connecting pipe (4), the length can be adjusted to connect the ventilation cap to the through sleeve, or the entire connecting pipe can be tightened along the longitudinal direction to maintain a more secure connection. Alternatively, even if the spir