JP3845601B2 - Ventilation structure - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a ventilation structure of an outer wall portion in a ventilation device that allows communication between a building room and outside air.
[0002]
[Prior Art and Problems to be Solved by the Invention]
Building ventilation forms ventilation channels (vent pipes and ducts) that communicate between the inside and outside of the building, and performs natural ventilation and forced ventilation. In particular, a hood is provided on the outer wall portion of the ventilation path in order to prevent outside air from entering.
[0003]
As means for attaching the hood, there are an integral type (Japanese Utility Model Publication No. 64-22934, Japanese Utility Model Laid-Open No. 4-103538, Japanese Patent No. 3135208) in which a hood body is provided with a pipe mounting mechanism, an outer wall attachment body and a hood body. A two-part configuration (Japanese Utility Model Publication No. 62-141131) is known.
[0004]
The former integrated type is easy to install, but the manufacturing cost is high, and there are few degrees of freedom in dealing with differences in the outer diameter of the ventilation pipes and selecting the hood shape. Multi-variety leads to higher costs.
[0005]
The latter two-part type is more troublesome to install than the former, but has an advantage that the structure is simple, the manufacturing cost is low, and the selection can be made by a combination of parts.
[0006]
In particular, the ventilation structure of these outer wall, so as not to cause contamination on the wall by the water droplets flow down, have been proposed also water gutter structure formed by protruding the lower edge in front of the wall.
[0007]
However, the conventional ventilation structure does not necessarily have a complete antifouling function on the wall surface. In other words, in the hood integrated type device (Japanese Patent No. 3135208) in which a member is externally fitted to the ventilation pipe, the tip of the ventilation pipe must be in contact with the outer peripheral surface of the ventilation tube and the inner peripheral surface of the pipe insertion hole of the device. The water droplets flowing down from the inside enter through a slight gap between the outer peripheral surface of the ventilation pipe and the inner peripheral surface of the tube insertion hole of the instrument, and reach the wall surface. Therefore, the accuracy of the device is required so that the outer peripheral surface of the ventilation pipe and the inner peripheral surface of the tube insertion hole of the device are in close contact with each other. However, the higher the accuracy, the more difficult the mounting becomes, and in fact a gap is generated. .
[0008]
Similarly, other devices that externally fit the outer wall mounting plate to the ventilation pipe are the same, and a connecting structure that abuts a part of the outer peripheral surface of the ventilation pipe is actually used, as in the known Japanese Utility Model Publication No. Sho 62-141131. Although it is the purpose, it does not change that a water droplet penetrate | invades into the wall surface side from a non-contact part.
[0009]
Also, in the hood integrated type, in the instruments (members of Japanese Utility Model Publication No. 64-22934, Japanese Utility Model Laid-Open No. 4-103538) in which members are inserted into the ventilation pipe, the inner peripheral surface of the ventilation pipe and the pipe insertion portion of the equipment are similarly used. If the outer peripheral surface is not in close contact, water droplets due to dew condensation generated in the ventilation pipe will flow out of a slight gap between the inner peripheral surface of the ventilation pipe and the outer peripheral surface of the tube insertion portion of the instrument, reach the wall surface, and stain the wall surface.
[0010]
Therefore, the present invention proposes a ventilation structure that ensures close contact between the outer peripheral surface of the ventilation pipe and a predetermined portion of the device to prevent water droplets from being transferred to the wall surface, and can be easily attached to the device.
[0011]
[Means for solving the problems]
In the ventilation structure according to the present invention, a ventilation pipe provided at an outer wall side end in a ventilation path communicating indoors and outdoors is provided to protrude from the outer wall by a predetermined length, and a hood attached to the ventilation pipe protruding portion is provided on the outer wall. attached to the outer wall mounting plate and the outer wall mounting plate fixed to the hood of the two-part article, or is composed of an outer wall mounting plate and the hood body in one piece with an integral, outer wall mounting plate, the insertion holes of the ventilation tube in the center the provided with the approximately lower order half of the hole edge of the insertion hole is projected forward is formed in the receiving portion the tube, over an appropriate position of the hole edge, Rutotomoni protruded into the insertion hole center side, on both sides of the projecting portion It is characterized in that a cut-in groove is provided in the part to form a pipe holding part that is provided with elasticity, and the outer wall mounting plate is externally fitted to a ventilation pipe that is protruded from the outer wall surface. is there.
[0012]
Thus, when the outer wall mounting plate is fitted and fitted to the ventilation pipe, the ventilation pipe is sandwiched between the pipe receiving part of the hole edge and the pipe holding part, and the pipe receiving part is in close contact with the outer peripheral surface of the ventilation pipe. Will do. Therefore, water drops due to condensation generated in the ventilation pipe always flow out from the lower edge of the opening end of the ventilation pipe and move to the wall side along the outer circumference of the ventilation pipe. It will be blocked by the wall surface of the outer wall mounting plate that is continuous with the portion and the tube receiving portion, and will not reach the outer wall.
[0013]
In addition, the present invention further provides a sealing leg by bending the upper and side of the outer wall mounting plate to the back, and a water tank with a side edge and a lower edge flipped forward. It is characterized in that the end edge of the leg portion and the back surface of the water tank portion are fixed in close contact with the outer wall surface.
[0014]
Accordingly, the water droplets blocked by the tube receiving part flow down to the water tank part and fall into the space from the lower end away from the outer wall of the water tank part.
[0015]
Embodiment
Next, an embodiment of the present invention will be described. The ventilation structure shown in the embodiment is an example in which the hood is composed of two parts.
[0016]
That is, the ventilation structure shown in the embodiment includes the ventilation pipe 1, the outer wall mounting plate 2, and the hood body 3.
[0017]
The ventilation pipe 1 is provided at an end portion on the outer wall side in a ventilation path that communicates with the outside of the room, and is provided to protrude from the outer wall A by a predetermined length. The ventilation path may be provided with an open / close mechanism such as an open / close valve or an open / close shutter, or a forced ventilation mechanism such as a ventilation fan.
[0018]
The outer wall mounting plate 2 is easily formed by pressing a thin metal plate (stainless steel plate). The outer wall mounting plate 2 is provided with an insertion hole 22 for a ventilation pipe in the center of the main body plate portion 21 and the hole of the insertion hole 22. About the lower half of the edge protrudes forward and is formed in a tube receiving portion 23 shaped so as to be in close contact with the peripheral surface of the ventilation tube 1, and the tube restraint protrudes toward the center of the insertion hole at an appropriate position above the hole edge. A portion 24 is formed.
[0019]
The inner diameter of the insertion hole 22 is formed to be slightly larger than the outer diameter of the ventilation pipe 1 in a range other than the pipe receiving part 23, and the pipe holding part 24 is formed so as to protrude in the central direction in the range formed in this large diameter. In other words, notches 25 are provided on both side portions of the tube holding portion 24 to provide the tube holding portion 24 with elasticity.
[0020]
Further, the upper and side portions of the main body plate portion 21 are bent back to provide the sealing leg portion 26, and the water tank portion 27 is continuously provided below. The water tank portion 27 is moved backward from the main body plate portion 21 to a position coincident with the sealing leg portion 26, and the side edge and the lower edge are flipped up to the front side.
[0021]
Further, a nail hole 28 for fixing the mounting plate 2 to the outer wall A and a screw hole 29 for mounting the hood body 3 are provided at appropriate positions of the main body plate portion 21.
[0022]
Like the conventional hood body, the hood body 3 includes a dome portion 31 having a lower opening, a connecting portion 32 at the periphery of the dome portion, and a louver portion 33 provided at a lower opening portion of the dome portion 31. 32 is provided with screw through holes corresponding to the positions of the screw holes 29.
[0023]
Thus, the insertion hole 22 of the outer wall mounting plate 2 is fitted and pushed into the ventilation pipe 1 protruding from the outer wall A, and the end surface of the sealing leg portion 26 and the back surface of the water tank portion 27 are brought into close contact with the outer wall A. Secure with wood screws or nails. Next, the hood body 3 is attached to the outer wall mounting plate 2 so as to cover the opening portion of the ventilation pipe 1 with a screw 34 or the like.
[0024]
Therefore, intrusion of rainwater into the ventilation pipe 1 is prevented by the hood body 3, and rainwater that falls along the outer wall A does not reach the peripheral surface of the ventilation pipe 1 by the sealing legs 26.
[0025]
Condensation generated in the ventilation pipe 1 that causes the contamination of the outer wall A flows out to the open end of the ventilation pipe 1 as it is, and is dropped as it is or ventilation It flows around the lower end of the outer peripheral surface of the pipe 1 and flows down.
[0026]
The water droplets that flow down and flow around the lower end of the outer peripheral surface are brought into close contact with the outer peripheral part of the ventilation pipe 1 and the pipe receiving part 23, so that they move to the pipe receiving part 23 and flow down from the lowest end of the water tank part 27. It will be dripped. Therefore, water droplets condensed in the ventilation pipe do not reach the outer wall and do not cause contamination.
[0027]
That is, according to the present invention, the mounting structure of the outer wall mounting plate 2 to the ventilation pipe 1 is made by slightly bending the pipe restraining portion 24, so that the ventilation pipe 1 is elastically repelled by the bending and the pipe restraining portion 24 and the pipe receiving portion. 23, when the outer wall mounting plate 2 is mounted, a close contact structure between the lower outer peripheral surface of the ventilation pipe 1 and the pipe receiving part 23 can be realized, and the pipe holding part 24 is bent and bent. Therefore, the mounting work itself can be easily performed.
[0028]
In addition, this invention is not limited to the said embodiment, The range of the pipe | tube receiving part 23 is not strictly limited to the lower half of the penetration hole 22, and the position and number of a pipe | tube holding | suppressing part are also limited. However, it is only necessary that the flow of condensed water droplets in the ventilation pipe and the clamping state of the ventilation pipe are within a range in which a predetermined action is exhibited.
[0029]
Furthermore, the present invention does not adopt the two-part configuration shown in the above embodiment, but forms a single part type in which the outer wall mounting plate 2 and the hood body 3 are integrally formed in advance and provided with a predetermined outer wall mounting part and a hood part. It may be adopted.
[0030]
【The invention's effect】
As described above, the present invention is composed of two parts: an outer wall mounting plate having an insertion hole through which a ventilation pipe is inserted and a hood body mounted on the outer wall mounting plate in a ventilation pipe provided to protrude from the outer wall by a predetermined length. Or a single part that integrates both, and in particular, about the lower half of the hole edge of the insertion hole is protruded forward and formed in the tube receiving portion, and the insertion hole center is formed at an appropriate position above the hole edge. This is a ventilation structure that forms a pipe restraining part that protrudes to the side and is attached to the protruding part of the outer wall of the ventilation pipe. The ventilation pipe and the pipe receiving part are in close contact so that the outflow of dew condensation that occurs in the ventilation pipe does not reach the outer wall. Is realized without the difficulty of equipment mounting work.
[Brief description of the drawings]
FIG. 1 shows an outer wall mounting plate according to an embodiment of the present invention, in which (A) is a front view (B) is a longitudinal sectional view.
FIG. 2 is an overall front view of the same part cut.
FIG. 3 is a line cross-sectional view of the assembled state.
FIG. 4 is a partially enlarged sectional view taken along line aa.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Ventilation pipe 2 Outer wall mounting plate 21 Main body board part 22 Insertion hole 23 Pipe receiving part 24 Pipe restraint part 25 Cut groove 26 Sealing leg part 27 Water tank part 28 Nail hole 29 Screw hole 3 Hood body 31 Dome part 32 Connection part 33 Galley part 34 screw

Claims (2)

An outer wall mounting plate and an outer wall for fixing a hood attached to the protruding portion of the ventilation pipe provided on the outer wall side end portion of the ventilation path communicating with the outside of the room by projecting a predetermined length from the outer wall Food of two-part article to be mounted to the mounting plate, or is composed of an outer wall mounting plate and the hood body in one piece with an integral, outer wall mounting plate, provided with an insertion hole of the ventilation tube in the middle, of the insertion hole about the lower order half of the hole edge is projected forward is formed in the receiving portion the tube, over an appropriate position of the hole edge, Rutotomoni protruded into the insertion hole center side, a notch groove is provided on both side portions of the projecting portion tilt A ventilation structure characterized in that a pipe holding portion having elasticity is formed and the outer wall mounting plate is externally fitted to a ventilation pipe that is installed so as to protrude from the outer wall surface.   The upper and side of the outer wall mounting plate are bent back to provide a sealing leg, and a water tank with a side edge and a lower edge jumped forward is provided below, and the edge of the sealing leg and The ventilation structure according to claim 1, wherein the rear surface of the water tank is fixed in close contact with the outer wall surface.

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