Water ingress prevention ventilation device

Abstract

To provide a flood suppression ventilation device which does not require a member movement mechanism or the like for pressure-contacting members for stopping water.SOLUTION: A flood suppression ventilation device 4 has a body part 41 and a lid member 42. The body part 41 is positioned on the lower side of an exterior wall panel 1, and has an air intake surface part 411 where a plurality of ventilation openings 411a for passing an air flow in a vertical direction are formed at prescribed intervals in a horizontal direction. The lid member 42 is slidably provided in the same direction as the horizontal direction on the lower side of the air intake surface part 411a, alternatively has an open opening 42a for passing the air flow in the vertical direction and a closed surface part 42b for preventing passage of the air flow in the slide direction, and switches a ventilation state where the open opening 42a is positioned in the ventilation openings 411a, and a closed state where the closed surface part 42b is positioned in the ventilation opening 411a. The lid member 42 in the closed state receives a water pressure from the lower side, and is brought into pressure-contact with the air intake surface part 411a, which suppresses entering of water from the closed surface part 42b into the ventilation openings 411a.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a water infiltration suppression and ventilation device that suppresses water infiltration through an outside air intake on the underside of an exterior wall panel during a flood or the like. [Background technology]

[0002] Patent document 1 discloses a foundation drip rack comprising: a wall portion constituting at least part of a passage connecting the space between the base of a structure and the foundation supporting the base with the outdoor side of the foundation; a partition wall fixed to the wall portion, having an opening that is part of the passage and blocking the passage; and a movable member located below the partition wall, configured to float on water, having a sealing portion capable of covering the opening when in contact with the entire periphery of the opening from below, and arranged to be movable between a separated position where it is separated from the partition wall and the opening is open, and a contact position where the sealing portion covers and seals the opening.

[0003] Patent Document 2 also discloses a foundation drain that can prevent water from entering a structure in the event of a flood, and Patent Document 3 discloses an underfloor ventilation device with a water-stopping function in which a waterstop plate slides inside the groove of the frame body like a sliding door to open and close the underfloor ventilation opening, and rubber or a soft resin like rubber is used as a sealing material on the surfaces of the frame body and the groove that come into contact with other components to provide a waterproofing function. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2017-95999 A [Patent Document 2] JP 2016-132869 A [Patent Document 3] JP 2007-239181 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, the above-mentioned conventional foundation drains and the like have a problem in that the structure is complicated because they are equipped with a component moving mechanism for pressing together the components responsible for watertightness.

[0006] In view of the above circumstances, an object of the present invention is to provide a water infiltration suppression and ventilation device that does not require a member moving mechanism or the like for pressing together members responsible for water blocking. [Means for solving the problem]

[0007] The water infiltration suppression and ventilation device of the present invention includes an air intake surface portion located on the lower side of an exterior wall panel, and having a plurality of ventilation openings formed at predetermined intervals in the horizontal direction to allow airflow in the vertical direction; a cover member that is provided on the underside of the air intake surface portion so as to be slidable in the same direction as the horizontal direction, and has open openings that allow airflow to pass in the vertical direction and closed surface portions that do not allow airflow to pass alternately in the sliding direction, and switches between a ventilation state in which the open opening is positioned at the ventilation opening and a closed state in which the closed surface portion is positioned at the ventilation opening, In the closed state, the cover member is subjected to water pressure from below and is pressed against the air intake surface, thereby preventing water from entering the ventilation opening from the closed surface.

[0008] With the above-mentioned configuration, the cover member is subjected to water pressure from below by water during a flood or the like and is pressed against the air intake surface, so a member moving mechanism for pressing the air intake surface and the cover member together is not required. This simplifies the structure of the water intrusion suppression and ventilation device and reduces costs.

[0009] At least the upper surface of the cover member may have an elastic part having sealing properties, and the elastic part may be in close contact with the air intake surface. In this way, by the elastic part being in close contact with the air intake surface, water pressure can be accurately converted into a pressure contact force of the cover member against the air intake surface during flooding.

[0010] Alternatively, the cover member may float on water and come into close contact with the air intake surface, so that in the event of a flood, the cover member floats on water and comes into close contact with the air intake surface, thereby enabling water pressure to be accurately converted into a pressure contact force of the cover member against the air intake surface.

[0011] A chamfer may be formed on the peripheral edge of the lower side of the ventilation opening, which can prevent a situation in which the movement of the cover member is not smooth due to burring protrusions or the like on the peripheral edge of the lower side of the ventilation opening when the cover member is slid, and a situation in which the upper surface of the cover member is scratched and the sealing performance is reduced.

[0012] Further sliding of the cover member may be restricted at a position where the cover member slides to the closed state, whereby the closed state can be reliably obtained by sliding the cover member.

[0013] An operating knob may be provided on the underside of the cover member, so that the cover member can be easily slid by hand. Effect of the Invention

[0014] According to the present invention, there is no need for a member moving mechanism for pressing together the members that perform the water blocking, and this has the effect of simplifying the structure of the water intrusion suppression and ventilation device and reducing costs. [Brief description of the drawings]

[0015] [Figure 1] FIG. 2 is an explanatory diagram showing a water infiltration suppression and ventilation device according to an embodiment. [Diagram 2] 2A is a perspective view showing the main body of the water intrusion suppression and ventilator of FIG. 1, and FIG. 2B is a perspective view showing a cover member of the water intrusion suppression and ventilator. [Diagram 3] 4 is an explanatory diagram showing switching from a ventilating state to a closed state in the water intrusion suppression and ventilation device of FIG. 1. FIG. [Figure 4]FIG. 2A is an explanatory diagram showing a modified example of the main body of the water-intrusion suppression and ventilation device of FIG. 1, and FIG. 2B is an explanatory diagram showing a modified example of the cover member of the water-intrusion suppression and ventilation device. [Diagram 5] 5 is an explanatory diagram showing switching from an air permeable state by the cover member in FIG. 4 to a closed state for preventing water intrusion, and showing an end position of the slide of the cover member. FIG. [Figure 6] FIG. 2 is an explanatory diagram showing an arrangement of the water inundation suppression and ventilation device of the embodiment in a house. [Figure 7] 1. FIG. 4 is an explanatory diagram showing a modified example of the cover member of the water intrusion suppression and ventilation device of FIG. 1, and showing switching from a ventilation state to a closed state by the cover member. [Figure 8] FIG. 8 is a partially enlarged view of FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. As shown in Fig. 1, a water-inundation suppression and ventilation device 4 in this embodiment is installed below an air intake 20 of a long ventilation slit member 2 attached to the back side of the lower part of an exterior material 11 of an exterior wall panel 1 on the first floor. Note that the water-inundation suppression and ventilation device 4 may be installed without providing the ventilation slit member 2.

[0017] The exterior wall panel 1 includes, for example, a frame material 12, a glass wool board 13 provided on the outdoor side of the frame material 12, the exterior material 11 provided on the outdoor side of the glass wool board 13 via a ventilation layer, and glass wool 14 provided within the frame material 12. A mounting member 6 for mounting the ventilation slit member 2 is fixed to the lower surface side of the frame material 12 with a screw 61.

[0018] The mounting member 6 has a shape with an open bottom, and a locking claw 62 is formed on its inner wall surface. The steel body of the ventilation slit member 2 also has a shape with an open bottom, and an elastic claw 21 that engages with the locking claw 62 is formed on its outer surface. By inserting the body of the ventilation slit member 2 into the mounting member 6 from below, the elastic claw 21 engages with the locking claw 62, and the ventilation slit member 2 is mounted on the mounting member 6.

[0019] A backup material 51 is provided between the indoor side hanging part 22 of the ventilation slit member 2 and the side surface of the foundation 5. A slit part for ventilation is formed in the outdoor side hanging part 23 of the ventilation slit member 2, so that ventilation can be achieved between the ventilation layer of the exterior wall panel 1 and the outside air. A hanging part 24 is formed on the lower side of the outdoor side hanging part 23, which hangs down at the tip side extending approximately horizontally to the outdoor side.

[0020] The water infiltration suppression and ventilation device 4 comprises a main body 41 and a cover member 42. The main body 41 and the cover member 42 are made of an aluminum alloy extrusion, a bent steel plate, a resin molded product, or the like. The main body 41 has a generally long box shape (e.g., 1 to 3 m) that is long in the foundation extension direction. The main body 41 has an air intake surface 411 on the bottom side, an indoor side rising portion 412 located on the indoor side, an outdoor side rising portion 413 located on the outdoor side, and a guide portion 414 located below the air intake surface 411.

[0021] The main body 41 is attached to the underside of the exterior wall panel 1 by utilizing the ventilation slit member 2. For example, an engagement recess 412a is formed in the indoor side rising portion 412, and the tip return portion of the indoor side hanging portion 22 is engaged with this engagement recess 412a. Also, a mounting rising portion 413a is formed on the tip side of a portion extending from the upper end side of the outdoor side rising portion 413 toward the indoor side, and this mounting rising portion 413a is fixed to the hanging point 24 by a fastening member.

[0022] A sealant 15 is applied between the lower end surface of the exterior material 11 and the mounting rising portion 413a, and the periphery of the fastening member is sealed by this sealant 15. In addition, a sealant 52 is applied between the lower part of the indoor side rising portion 412 and the rising surface of the foundation 5.

[0023] 2(A), a plurality of ventilation openings 411a for passing air in the vertical direction are formed at predetermined intervals in the horizontal direction parallel to the wall surface of the exterior material 11 on the air intake surface 411. The ventilation openings 411a are not limited to a rectangular shape, and may be a circular shape.

[0024] The cover member 42 is supported by the guide portion 414 on the lower surface side of the air intake surface portion 411 and is provided so as to be slidable in the same direction as the horizontal direction. The thickness of the cover member 42 is approximately the same as the width between the upper surface of the guide portion 414 and the lower surface of the air intake surface portion 411, and the upper surface of the cover member 42 is in close contact with the lower surface of the air intake surface portion 411, and the lower surface of the cover member 42 is in close contact with the upper surface of the guide portion 414. As shown in FIG. 2B, the cover member 42 has open openings 42a that allow airflow to pass in the vertical direction and closed surface portions 42b that do not allow airflow to pass, alternately in the sliding direction. The formation pitch of the open openings 42a is set to be equal to the formation pitch of the ventilation openings 411a. The open openings 42a are not limited to a square shape and may be a circle. In addition, a semicircular or other convex portion may be formed on the upper tip side of guide portion 414, and this convex portion may be made to make line contact with the underside of cover member 42. This makes it possible to reduce resistance when cover member 42 slides while ensuring the above-mentioned close contact.

[0025] The cover member 42 is slid in the same direction as the horizontal direction to switch between a ventilation state in which the open opening 42a is located at the ventilation opening 411a and a closed state in which the closed surface portion 42b is located at the ventilation opening 411a. In the closed state, the cover member 42 receives water pressure from below and is pressed against the air intake surface portion 411, preventing water from entering the ventilation opening 411a from the closed surface portion 42b. The open opening 42a is smaller than the ventilation opening 411a, and in the closed state, the ventilation opening 411a is covered by the closed surface portion 42b, which has a larger area than the open opening 42a.

[0026] A plurality of engagement recesses 42c are formed at predetermined positions on the upper surface of the cover member 42 at positions that avoid the open opening 42a. Also, engagement protrusions 411b are formed on the lower surface of the air intake surface 411, which engage with the engagement recesses 42c at the sliding position where the cover member 42 is in the closed state. That is, the engagement recesses 42c and the engagement protrusions 411b restrict further sliding of the cover member 42 at the position where the cover member 42 slides to the closed state. The concave-convex relationship between the engagement recesses 42c and the engagement protrusions 411b may be reversed.

[0027] Furthermore, an operation knob 42d is provided on the underside of the cover member 42. This operation knob 42d protrudes downward from the underside of the closing surface portion 42b.

[0028] In the above configuration, when the water-inundation suppression and ventilation device 4 is in the ventilating state, as shown in Fig. 3, outside air is taken in through the ventilation opening 411a of the air intake surface 411 of the water-inundation suppression and ventilation device 4, and the outside air is introduced to the ventilation slit member 2 side. On the other hand, when a family member judges that there is a risk of flooding or the like, the family member slides the cover member 42 of the water-inundation suppression and ventilation device 4 to form a closed state in the water-inundation suppression and ventilation device 4. In this closed state, the cover member 42 is subjected to water pressure from below by water during flooding or the like and is pressed against the air intake surface 411, so a member moving mechanism for pressing the air intake surface 411 and the cover member 42 is not required. This simplifies the structure of the water-inundation suppression and ventilation device 4, thereby reducing costs.

[0029] If the operation knob 42d is provided on the underside of the cover member 42, the cover member 42 can be easily slid by hand.

[0030] When the cover member 42 is slid to a position where it is in the closed state, further sliding of the cover member 42 is restricted, so that the closed state can be reliably obtained by sliding the cover member 42.

[0031] The slide restriction means is not limited to the structure of the engagement recess 42c and the engagement protrusion 411b. For example, the air intake surface 411 may have the ventilation opening 411a shown in Fig. 4(A), and the cover member 42 may have the open opening 42a and the protrusion 42e shown in Fig. 4(B).

[0032] The open opening 42a adjacent to the protrusion 42e is smaller than the other open openings 42a, and the vent opening 411a located at the location corresponding to the protrusion 42e and the adjacent open openings 42a has a size that encompasses the protrusion 42e and the open openings 42a. For example, during factory production of the water infiltration suppression and ventilator 4, after the cover member 42 is set on the main body 41, a screw member is screwed into the underside of the cover member 42 so that the tip side of the screw member protrudes into the air intake surface 411, and this protruding portion can be the protrusion 42e.

[0033] 5, when the cover member 42 is slid from a ventilation state in which the open opening 42a is located inside the ventilation opening 411a, a closed state in which the open opening 42a is located outside the ventilation opening 411a is formed, and at this time, the protrusion 42e abuts on the edge of the ventilation opening 411a. That is, when the cover member 42 slides to a position in which the closed state is reached, further sliding of the cover member 42 is restricted. When the protrusion 42e is located inside the ventilation opening 411a, the cover member 42 and the air intake surface 411 can be easily brought into close contact with each other.

[0034] 6, multiple water-infiltration suppression and ventilation devices 4 may be placed around the building 100. The ends of each water-infiltration suppression and ventilation device 4 are located near an exterior corner 1001 or an interior corner 1002 of the building 100, and are sealed to prevent water from entering. If it is not possible to place the water-infiltration suppression and ventilation devices 4 at the exterior corners 1001 and interior corners 1002 of the building 100, fixed covers may be provided on the air intakes at the exterior corners 1001 and interior corners 1002.

[0035] 7, an elastic portion 421 made of rubber or the like having sealing properties may be provided on the upper surface of the cover member 42, and this elastic portion 421 may be brought into close contact with the air intake surface 411. In this way, the elastic portion 421 comes into close contact with the air intake surface 411, so that the water pressure during flooding can be accurately converted into a pressure contact force against the air intake surface 411 of the cover member 42. Note that in order to reduce the sliding resistance of the cover member 42, the elastic portion 421 may be provided only at the closing surface 42b. Alternatively, the elastic portion 421 may be provided on the entire upper and lower surfaces of the cover member 42.

[0036] Furthermore, as shown in Fig. 8, a chamfered portion 411c may be formed at a peripheral edge corner on the lower side of the ventilation opening 411a. This makes it possible to prevent a situation in which the movement of the cover member 42 is not smooth due to burring protrusions on the peripheral edge on the lower side of the ventilation opening 411a, or a situation in which the upper surface of the cover member 42 is scratched and the sealing performance is reduced, when the cover member 42 is slid.

[0037] Also, the lid member 42 may have a specific gravity smaller than water, float on water, and adhere closely to the air intake surface 411. According to this, in the event of a flood, the lid member 42 floats on water and adheres closely to the air intake surface 411, so that the water pressure in the event of a flood can be accurately converted into a pressure contact force of the lid member 42 against the air intake surface 411. Note that the material of the lid member 42 itself may have a specific gravity smaller than water, or the lid member 42 may be made to float on water by a structure having a hollow part in the center, a structure having a lightweight foam material part at the bottom, or the like.

[0038] Although the embodiment of the present invention has been described above with reference to the drawings, the present invention is not limited to the illustrated embodiment. Various modifications and variations can be made to the illustrated embodiment within the same scope as the present invention or within an equivalent scope. [Explanation of symbols]

[0039] 1: Exterior wall panel 2: Ventilation slit material 4: Water ingress prevention ventilation device 5: Basics 6: Mounting material 11: Exterior materials 12: Frame material 13: Glass wool board 14: Glass wool 15: Sealing material 20: Air intake 21: Elastic claw 22: Indoor side hanging part 23: Outdoor side hanging part 24: Lowering point 41: Main body 42: Lid member 42a: Open aperture 42b: Closed surface part 42c: Engagement recess 42d: Operation knob 42e:Protrusion 51: Back-up material 52: Sealing material 61: Screw 62: Locking claw 100: Building 411: Air intake surface 411a: Ventilation opening 411b: Engagement protrusion 411c: Chamfered part 412: Indoor side riser 412a: Engagement recess 413: Outdoor side riser 413a: Mounting part 414: Guide section 421: Elastic part 1001: Corner 1002: Inside corner

Claims

1. an air intake surface portion located on the lower side of the exterior wall panel, in which a plurality of ventilation openings for passing air in the vertical direction are formed at predetermined intervals in the horizontal direction; a cover member that is supported by a guide portion on the underside of the air intake surface portion and is slidable in the same direction as the horizontal direction, and has open openings that allow airflow to pass in the vertical direction and closed surface portions that do not allow airflow to pass alternately in the sliding direction, and switches between a ventilation state in which the open opening is positioned at the ventilation opening and a closed state in which the closed surface portion is positioned at the ventilation opening, The thickness of the cover member is approximately the same as the width between the upper surface of the guide portion and the lower surface of the air intake surface portion, the upper surface of the cover member is in close contact with the lower surface of the air intake surface portion, and the lower surface of the cover member is in close contact with the upper surface of the guide portion, A water infiltration suppression and ventilation device characterized in that, in the closed state, the cover member receives water pressure from below and is pressed against the air intake surface portion to suppress water infiltration from the closed surface portion into the ventilation opening.

2. 2. The water ingress suppression and ventilation device according to claim 1, wherein at least an upper surface of the cover member has an elastic portion having sealing properties, the elastic portion being in close contact with the air intake surface.

3. 3. The water-ingress suppression and ventilation device according to claim 1 or 2, wherein a chamfer is formed on the lower peripheral edge of the ventilation opening.

4. 4. The water-ingress suppression and ventilation device according to claim 1, wherein the lid member is regulated from further sliding when the lid member slides to the closed position.

5. 5. The water-ingress suppression and ventilation device according to claim 1, further comprising an operating knob on the underside of the lid member.

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