JP3110711U - Vent cap for ventilation - Google Patents

Abstract

Provided is a vent cap for ventilation that can completely prevent rainwater from entering a room even in bad weather such as a storm, and can secure a suitable ventilation performance.
A ventilation vent cap 1 provided at an appropriate position in a ventilation passage formed for ventilating a room has an annular groove 22 having an opening 21 at the center, and the opening 21 of the annular groove 22 is provided outside the room. It is formed in the shape of a cap having the mounting body 2 arranged in the ventilation passage in the oriented state and the annular piece 31 having the same shape as the annular groove 22 on the periphery, and is held outside the mounting body 2 with the annular piece 31 being on the inside Cover member 3 provided through means 4, and cover member 3 is arranged with respect to mounting body 2 so that annular piece 31 forms S-shaped introduction path 5 with annular groove 22. Yes. A venting vent cap of the type that is fitted into a ventilation passage, and a packing 6 interposed between the outer peripheral surface of the mounting body 2 and the inner wall of the ventilation passage is provided.
[Selection] Figure 2

Description

  The present invention relates to a vent cap for ventilation provided for rain prevention or the like in a ventilation passage formed in a wall of a building.

Conventionally, connecting pipes and the like are installed on the wall of a building to form a ventilation passage. The ventilation passage ensures indoor ventilation, and a ventilation vent cap is provided on the outer wall side of the ventilation passage to allow rainwater to flow through the ventilation passage. Intrusion into the room was prevented (see, for example, Patent Document 1).
Japanese Utility Model Publication No. 64-13444

  However, in the above-mentioned conventional devices, although rainproof effect can be exhibited when it is raining normally, intrusion of rainwater into the room cannot be completely prevented in heavy rain such as storms. However, there is a problem in that the intrusion of rainwater causes problems such as corrosion around the wall body and the inner wall in which the ventilation passage is formed. In addition, the more complicated the structure is to improve the rainproof function, the lower the ventilation performance that must be ensured.Therefore, it is necessary to ensure both the rainproof function and the ventilation performance. It was difficult.

  The present invention has been made in view of the above-mentioned problems, and the object of the present invention is to prevent rainwater from entering the room even in bad weather such as a storm, and to ensure suitable ventilation performance. It is to provide a vent cap for ventilation.

  In order to achieve the above object, a vent cap according to the first aspect of the present invention is a vent cap provided at an appropriate position in a ventilation passage formed for ventilating a room. A mounting body disposed in the ventilation passage with the opening of the annular groove facing the outdoor side, and a cap having an annular piece of the same shape as the annular groove on the periphery. And a cover member provided on the outside of the attachment main body via a holding means, and an annular piece of the cover material forms an S-shaped introduction path with the annular groove of the attachment main body. A cover material is arranged with respect to the mounting body.

  The venting vent cap according to claim 2 is a venting vent cap according to claim 1, which is of a type fitted into the ventilation passage, wherein the ventilation passage is provided on an outer peripheral surface of the mounting body. A packing interposed between the inner wall and the inner wall is provided.

  According to the present invention, it is possible to prevent the intrusion of rainwater into the room even in bad weather such as a storm by guiding the outside air into the room through the introduction path and preventing the rainwater entering with the outside air by the annular groove. In addition, it is possible to ensure a good air ventilation performance by the introduction path. In addition, it is possible to provide a vent cap for ventilation that can be attached to an existing vent and has excellent versatility.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 is a bottom view of a venting vent cap according to the present invention, and FIG. 2 is a sectional view taken along line XX of FIG.

  The ventilation vent cap 1 includes an attachment body 2 attached to a ventilation passage A described later, and a cover member 3 (see FIG. 2) provided on the attachment body 2 via a holding means 4.

  As shown in FIGS. 3 and 4, the mounting body 2 has a circular annular groove 22 having an opening 21 at the center. Specifically, the annular groove 22 includes a bottom wall 22a, an outer peripheral wall 22b standing on the outer peripheral edge of the bottom wall 22a, and an inner peripheral wall 22c standing on the inner peripheral edge of the bottom wall 22a. The inner peripheral wall 22c is about half lower than the outer peripheral wall 22b.

  As shown in FIGS. 5 and 6, the cover member 3 is formed in a cap shape having an annular piece 31 having the same shape as the annular groove 22 on the periphery. At the center of the inner surface of the cover material 3, a holding shaft 32 for holding the cover material 3 by a holding means 4 described later is integrally extended.

  As shown in FIGS. 7 and 8, the holding means 4 is composed of three holding pieces 42 that extend radially from the central connecting portion 41 at regular intervals in a trifurcated manner. 42a is fixed to the lower surface of the bottom wall 22a. A mounting hole 41 a is formed in the central connecting portion 41, and the cover member 3 is disposed at an appropriate position with respect to the mounting body 2 by inserting and fixing the tip of the holding shaft 32 into the mounting hole 41 a. Like to do. Specifically, as shown in FIG. 2, the annular piece 31 is substantially centered in the width direction over the entire circumference of the annular groove 22 so that the tip of the annular piece 31 reaches substantially the same position as the tip of the inner peripheral wall 22 c. Inserted into.

  In this way, by arranging the cover member 3 at an appropriate position with respect to the mounting body 2, an S-shaped introduction path 5 as shown by a broken arrow in FIG. 2 is provided between the annular groove 22 and the annular piece 31. When the ventilation vent cap 1 is attached to the ventilation passage A as will be described later, the outside air is introduced into the room through the introduction passage 5. .

  The mounting body 2, the cover material 3 and the holding means 4 constituting the ventilation vent cap 1 are made of, for example, a synthetic resin such as ABS resin, and each member is integrally formed as described above by bonding or welding. It is joined to become.

  When the vent vent cap 1 is used in combination with a conventional vent cap (hereinafter referred to as a conventional vent cap) as described later, the packing 6 is attached to the outer peripheral surface of the outer peripheral wall 22b. Yes. As a material of the packing 6, for example, synthetic rubber is used.

  FIG. 9 shows an attachment state when the vent vent cap 1 configured as described above is used in combination with a conventional vent cap.

  In this case, the venting vent cap 1 is arranged by being fitted in the middle part of the ventilation passage A in a form connected to the proximal end of the conventional vent cap 10.

  Specifically, the ventilation passage A is formed by inserting and fixing a connection pipe A3 in a mounting hole A2 formed in a wall A1 of a building, and a conventional vent cap 10 is provided outside the connection pipe A3. Is provided, and a vent cap 1 for ventilation is fitted and arranged in the middle of the connection pipe A3 with the cover material 3 as the outdoor side. That is, the attachment main body 2 is disposed in the ventilation passage A with the opening 21 of the annular groove 22 facing the outdoor side, and the cap 3 is disposed with the annular piece 31 facing the indoor side.

  In this case, the packing 6 is attached to the entire outer peripheral surface of the outer peripheral wall 22b, and the packing 6 ensures watertightness between the outer peripheral wall 22b and the inner surface of the connection pipe A3.

  The conventional vent cap 10 includes a cylindrical mounting body 11 fitted into the connection pipe A3, a cover 12 connected to the outer end of the mounting body 11 so as to protrude from the outer surface of the wall body A1, and a mounting body. 11 and a cover 13 arranged at the connection portion of the cover 12, and the outside air is guided from the opening 12 a formed in the lower part of the cover 12 to the indoor side through the cover 13. Caulking is applied to the outer peripheral portions of both ends outside the indoor side of the connection pipe A3.

  The ventilation vent cap 1 is connected to the proximal end of the mounting body 11 in the state described above.

  By installing the venting vent cap 1 of the present invention in the ventilation passage A as described above, the outside air introduced through the conventional vent cap 10 is attached to the mounting body 2 and the cap 3 from the proximal end opening of the mounting body 11 through the introduction path 5. And is guided into the room through the opening 21 of the mounting body 2.

  In the case of a storm or the like, rain water may enter the conventional vent cap 10 together with the outside air and reach the vent vent cap 1. Stop. Specifically, rainwater blown from the outside toward the vent vent cap 1 passes between the annular piece 31 of the cap 3 and the outer peripheral wall 22b of the annular groove 22 and hits the bottom wall 22a, and the bottom wall 22a. Or, it is guided downward through the inner peripheral wall 22c and discharged to the outdoor side by the action of the gradient set in the ventilation passage A in advance. Further, since the mounting body 2 and the connection pipe A3 are in a watertight state by the packing 6, rainwater does not enter through this space.

  Accordingly, it is possible to completely prevent the intrusion of rainwater into the room even in bad weather such as a storm, and the introduction path 5 can ensure a good outdoor air ventilation performance. Further, as described above, the ventilating vent cap 1 can be used in combination with the conventional ventilation structure.

  The ventilation vent cap 1 according to the present invention may be mounted in the mounting body 11 or may be mounted in the connection pipe A3 at a predetermined distance from the mounting body 11.

  FIG. 10 shows a state in which the venting vent cap 1 of the present invention is attached to the outdoor side of the ventilation passage A alone.

  In this case, the ventilation vent cap 1 is a so-called outer wall surface mounting type that is disposed at the outer end of the ventilation passage A in a state of being exposed to the outside of the wall body A1.

  Specifically, the mounting cylinder 2 is connected to the outer peripheral wall 22b of the holding cylinder 7 for holding and fixing the ventilation vent cap 1 in a loosely fitted state with a predetermined gap in the connection pipe A3. In addition, a covering cover 8 for covering a gap S generated between the mounting body 2 and the connection pipe A3 is provided at the tip of the outer peripheral wall 22b.

  A plurality of leaf spring-like holding pieces 71 are provided on the outer periphery of the holding cylinder 7. By inserting the holding cylinder 7 into the connection pipe A 3 from the outside and holding the holding pipe 7 by the holding pieces 71, a ventilation vent cap is provided. 1 is arranged at an appropriate position with respect to the ventilation passage A.

  As a result, the venting vent cap 1 is arranged with the cap 3 slightly protruding from the outer surface of the wall body A1 and exposed to the outside.

  In this vent cap 1 for ventilation, a suitable number (for example, three at regular intervals) of linear connecting members 43 are installed as the holding means 4 across the mounting body 2 and the cap 3. . In this case, the holding shaft 32 provided on the cap 3 can be dispensed with.

  By attaching the ventilation vent cap 1 in this manner, the outside air can be guided into the room through the introduction path 5 in the same manner as the structure described above, and rainwater entering the outside air at the portion of the annular groove 22 can be introduced. Can be blocked.

  Accordingly, it is possible to completely prevent the intrusion of rainwater into the room even in bad weather such as a storm, and the introduction path 5 can ensure a good outdoor air ventilation performance.

  Further, since the ventilation vent cap 1 is loosely fitted to the connection pipe A3, the shape of the mounting body 2 and the cap 3 is not limited to the cross-sectional shape of the connection pipe A3, that is, regardless of the circular shape, for example, square or rhombus. It can be made into an appropriate shape. In addition, unlike a conventional hood or the like, it does not protrude greatly from the outer wall, can be matched to the outer wall without a sense of incongruity, and the design can be improved.

  Note that the above-described embodiment is merely a preferred embodiment of the present invention, and the present invention is not limited to this, and various design changes can be made within the scope thereof.

  For example, in the present embodiment, the constituent members of the vent vent cap are made of synthetic resin. However, the material is not limited to this, and may be stainless steel, for example.

It is a bottom view which shows the vent cap for ventilation of this invention. It is XX sectional drawing in FIG. It is a top view which shows an attachment main body. It is YY sectional drawing in FIG. It is sectional drawing which shows a cap. It is a bottom view which shows a cap. It is a top view which shows a holding means. It is a side view which shows a holding means. It is sectional drawing which shows the example of attachment of the vent cap for ventilation. It is sectional drawing which shows the other example of attachment of the vent cap for ventilation.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ventilation vent cap 2 Mounting body 21 Opening 22 Annular groove 3 Cap 31 Annular piece 4 Holding means 5 Introducing path 6 Packing A Ventilation path

Claims (2)

In the ventilation vent cap provided at the appropriate place in the ventilation passage formed to ventilate the room,
A mounting body disposed in the ventilation passage with an annular groove opened at the center, with the opening of the annular groove facing the outdoor side;
A cover member that is formed in a cap shape having an annular piece of the same shape as the annular groove on the periphery, and is provided on the outside of the mounting body with a holding means on the outside of the mounting body,
A venting vent cap, wherein a cover member is arranged with respect to a mounting body so that an annular piece of the cover material forms an S-shaped introduction path between the annular piece and the annular groove of the mounting body. The vent vent cap according to claim 1, which is of a type fitted into the ventilation passage.
The ventilation vent cap according to claim 1, wherein a packing interposed between the outer peripheral surface of the mounting body and the inner wall of the ventilation passage is provided.

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