JP6913406B1 - Ventilation port inundation prevention device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation port inundation prevention device capable of uniformly contacting a ventilation port and a plate when trying to close the ventilation port with a plate and easily determining a protruding direction of a hook which can be locked to a lattice. SOLUTION: A waterstop plate larger than a ventilation port and having a first through hole, packing provided around a surface of the waterstop plate on the underfloor space side, and an outdoor surface of the waterstop plate are provided. It has a second through hole that overlaps with the first through hole, and the pressing plate that extends from the surroundings toward the waterstop plate comes into contact with the waterstop plate, and the waterstop plate is fixed to the ventilation port. It consists of a fixing part, the fixing part consists of an L-shaped hook part, a male screw part, a female thread part, a ring packing and a mark part, and the male screw part loosely penetrates the first through hole and the second through hole. , The hook part is arranged at the end of the male screw part on the underfloor space side, the ring packing is passed through the outdoor side of the male screw part, the female screw part is screwed in, and the female screw part urges the ring packing to the pressing plate. However, the mark portion adopts a configuration in which the direction of the protruding portion of the hook portion is indicated. [Selection diagram] Fig. 1

Description

The present invention relates to a ventilation port inundation prevention device, and more particularly to a technique for improving the inundation prevention performance of the ventilation port inundation prevention device.

In recent years, flood damage to houses due to torrential rain has occurred frequently. In the case of underfloor inundation, flood damage often increases due to the inflow of water and mud from the underfloor ventilation openings provided in many housing foundations. As a countermeasure, a structure that closes the ventilation port as necessary can be considered.
However, when trying to close the ventilation port with a plate, the ventilation port and the plate did not adhere uniformly, and water and mud often flowed in. In addition, when trying to lock the grid of the ventilation port with a hook-shaped locking portion, the protruding direction of the hook may not be known and it may be difficult to fix the hook.
Therefore, there has been a demand for a structure in which the ventilation port and the plate are in uniform contact with each other when the ventilation port is closed with a plate, and a structure in which the protruding direction of the fixing hook can be confirmed.

Various techniques have been proposed for such problems. For example, a technique is disclosed in which a plate fitted to a ventilation port is fixed to the ventilation port with a hook and a wing nut in order to prevent water from entering the ventilation port (see Patent Document 1).
However, since the plate is fixed to the ventilation port only at the hook portion, the amount of urging against the ventilation port differs depending on the location of the plate, and the ventilation port and the plate cannot be evenly adhered to each other, which does not solve the problem of the present invention.

Jitsukaisho 48-87807

According to the present invention, when the ventilation port is to be closed with a plate, the ventilation port and the plate do not adhere evenly and water flows in, and a hook-shaped locking portion is engaged with the lattice of the ventilation port. In view of the problem that the protruding direction of the hook is not known and it is difficult to fix the hook when trying to stop it, the problem is solved by using the pressing plate and the mark portion.

In order to solve the above problems, the ventilation port inundation prevention device according to the present invention is provided around a water stop plate having a first through hole and a surface of the water stop plate on the underfloor space side, which is larger than the ventilation port. It has a packing and a second through hole that is provided on the outdoor side surface of the water stop plate and overlaps with the first through hole. It consists of a pressing plate that comes into contact and a fixing part that fixes the water stop plate to the ventilation port. The fixing part consists of an L-shaped hook part, a male thread part, a female thread part, a ring packing, and a mark part. The hook portion is arranged at the end of the male screw portion on the underfloor space side, and the ring packing is passed through the outdoor side of the male screw portion, and the female screw portion is screwed into the through hole of 1 and the second through hole. The female thread portion urges the ring packing to the pressing plate, and the mark portion indicates the direction of the protruding portion of the hook portion.

Further, in the present invention, the female thread portion has a handle structure as a means.

Further, the present invention makes it a means to have a cover portion that can be attached to the fixed portion.

Furthermore, the present invention makes it a means that a plurality of positionings are arranged on the surface of the water stop plate on the ventilation port side.

Furthermore, the present invention makes it a means to have a joint portion between the hook portion and the male screw portion.

According to the ventilation port inundation prevention device according to the present invention, since the water stop plate can be evenly urged against the ventilation port, it is possible to reliably prevent the inflow of water and the like, and the fixing hook can be easily placed on the grid. Since it can be locked, the mounting work can be performed efficiently in a short time, and it is effective in preventing water damage.

It is an overall perspective view which shows the embodiment of the ventilation port inundation prevention device which concerns on this invention. It is an exploded view which shows the embodiment of the ventilation port inundation prevention device which concerns on this invention. It is a front view, the back surface, and the top view which shows the embodiment of the ventilation port inundation prevention device which concerns on this invention. It is sectional drawing which shows the embodiment of the ventilation port inundation prevention device which concerns on this invention. It is a schematic diagram explaining the operation and effect of the ventilation port inundation prevention device which concerns on this invention.

The most characteristic feature of the ventilation port inundation prevention device according to the present invention is that it adopts a structure in which the ventilation port and the plate are in uniform contact with each other and a structure in which the protruding direction of the fixing hook can be confirmed.
Hereinafter, embodiments of the ventilation port inundation prevention device according to the present invention will be described with reference to the drawings.

The overall shape and the shape of each part of the ventilation port inundation prevention device according to the present invention are not limited to the embodiments described below, and are within the scope of the technical idea of the present invention, that is, the same effect and effect. It can be changed within the range of the shape, dimensions, structure, etc. that can be exhibited.
Further, in the following description, the underfloor space side and the outdoor side refer to the direction of the ventilation port as seen from the ventilation port inundation prevention device when the ventilation port inundation prevention device is installed in the ventilation port, and are opposed to each other. Is the outdoor side.

The present invention will be described with reference to FIGS. 1 to 5. FIG. 1 is an overall perspective view showing an embodiment of a ventilation port inundation prevention device according to the present invention. FIG. 2 is an exploded view showing an embodiment of the ventilation port inundation prevention device according to the present invention. 3A and 3B are explanatory views showing an embodiment of a ventilation port inundation prevention device according to the present invention, in which FIG. 3A is a front view, FIG. 3B is a back view, and FIG. 3C is a top view. FIG. 4 is a cross-sectional view showing an embodiment of the ventilation port inundation prevention device according to the present invention, and shows the procedure for installing the ventilation port inundation prevention device 1 in the ventilation port 80 from (a) to (c). 5A and 5B are schematic views for explaining the operation and effect of the ventilation port inundation prevention device according to the present invention, FIG. 5A is a schematic diagram of another structure for comparison, and FIG. 5B is a schematic diagram of the structure of the present embodiment. It is a figure.

The ventilation port inundation prevention device 1 is a device provided on the foundation of a building such as a house to prevent the inflow of water from the outside to the underfloor space in the event of a disaster such as a flood with respect to the ventilation port that connects the underfloor space and the outside. ..
The ventilation port inundation prevention device 1 is mainly composed of a water stop plate 10, a pressing plate 20, and a fixing portion 30.
The water stop plate 10 is a portion that can be said to be the main body of the ventilation port inundation prevention device 1. It is a rectangular flat plate, which is larger than the size of the ventilation port 80 and covers the entire ventilation port 80. The thickness is, for example, about 1 cm, and is a thickness having a strength to block water that tries to flow into the underfloor space from the outside when the ventilation port inundation prevention device 1 is installed in the ventilation port 80. The material may be wood, resin, metal, or the like, but it is preferable that the material is strong and lightweight because the installation work is easy.

The water stop plate 10 has a packing 12 and a positioning portion 13, and is provided with a first through hole 11.
The first through hole 11 is provided substantially in the center of the flat plate surface of the water stop plate 10. The size is such that the male screw portion 40, which will be described later, penetrates. A packing 12 is provided around the flat plate portion on the underfloor space side of the water stop plate 10 in a circular manner without a break. The packing 12 is located between the water stop plate 10 and the ventilation port 80 when the ventilation port inundation prevention device 1 is installed in the ventilation port 80, and enhances the adhesion of the ventilation port inundation prevention device 1 to the ventilation port 80. Is. Use elastic and waterproof materials such as rubber and urethane. The thickness is, for example, about 1 cm. The surface of the ventilation port 80 may have fine irregularities or may be deformed with age, so that a certain thickness is required. The width is, for example, about 1.5 cm. When the width is sufficient, the contact area between the ventilation port and the ventilation port inundation prevention device 1 increases, and the effect of preventing the inflow of water can be enhanced.
Further, in order to enhance the waterproof effect of the packing 12, the packing 12 may be waterproofed by a waterproof spray or the like. By doing so, it is possible to further prevent water from entering through the gap between the ventilation port 80 and the packing 12.

The positioning unit 13 serves as a guide when the ventilation port inundation prevention device 1 is installed in the ventilation port 80. The positioning portions 13 project toward the underfloor space side of the water stop plate 10, and there are a plurality of positioning portions 13, which are generally located at the four corners of the ventilation port 80. By having the positioning portion 13, it is possible to reliably arrange the ventilation port 80 at a fixed position.

The pressing plate 20 is a characteristic part of the present invention, and is a uniform pressing member against the water blocking plate 10. It has a hollow structure and presses the water stop plate 10 at the peripheral edge. It is arranged on the outdoor side of the water stop plate 10. The pressing plate 20 is fixed to the waterstop plate 10 with screws or an adhesive. The pressing plate 20 has, for example, a dish-shaped structure having a recessed center (FIG. 4). The extension portion 22, which is a portion that hits the edge of the plate, has a structure that abuts on the water stop plate 10. When urging from the pressing plate 20 in the direction of the water blocking plate 10, the force from the pressing plate 20 is transmitted to the water blocking plate 10 via the extension portion 22. Therefore, since the force is distributed to many regions of the water stop plate 10, the water stop plate 10 is pressed evenly, and the deformation of the water stop plate 10 can be reduced.
There is a second through hole 21 in the central portion of the pressing plate 20, and when the pressing plate 20 is arranged on the water blocking plate 10, the first through hole 11 and the second through hole 21 are in overlapping positions. .. The size of the second through hole 21 is substantially the same as that of the first through hole 11. Therefore, both the first through hole 11 and the second through hole 21 have a structure that allows the male screw portion 40 to pass through.
The shape of the pressing plate 20 is not particularly limited, and the pressing plate 20 may be a quadrangle or a circle. The material may be wood, resin, metal or the like as in the case of the water blocking plate 10, but it is required to have strength and light weight.

The fixing portion 30 has a structure for urging the water stop plate 10 to the ventilation port 80. The fixing portion 30 mainly includes a hook portion 42, a male screw portion 40, a ring packing 52, and a mark portion 60. The hook portion 42 is formed by bending the tip of a metal rod into an L shape. By locking to the grid 82 of the ventilation port 80, the ventilation port inundation prevention device 1 is fixed to the ventilation port 80 (FIG. 4). It is inserted into the ventilation port 80 from between the grids 82, rotated approximately 90 degrees, and locked by hooking on the grid 82. It is conceivable that the shape is close to a U shape instead of an L shape, but the width of the grid 82 may be wide depending on the type of the ventilation port 80. Then, it is assumed that the U-shape cannot sufficiently straddle the grid 82 and cannot be locked stably.
Therefore, an L-shaped hook structure is suitable.

The male screw portion 40 constitutes the center of the fixing portion 30, and is rod-shaped and threaded. A spring washer 54, a washer 53, a ring packing 52, a female screw portion 50, a nut 61, a mark portion 60, and a nut 61 are inserted into the male screw portion 40 from the outdoor side. There is a hook portion 42 on the underfloor space side of the water stop plate 10 and the pressing plate 20, and a spring washer 54, a washer 53, a ring packing 52, a female screw portion 50, a nut 61, and a mark portion 60 on the outdoor side. There will be a nut 61. Since the female screw portion 50 is screwed with the male screw portion 40, by screwing the female screw portion 50 into the underfloor space side with respect to the male screw portion 40, the distance between the female screw portion 50 and the hook portion 42 is narrowed, and as a result, the ventilation port The entire inundation prevention device 1 comes into close contact with the ventilation port 80.

The female screw portion 50 directly urges the pressing plate 20. A washer 53, a ring packing 52, and a spring washer 54 are provided between the pressing plate 20 and the female screw portion 50. The washer 53 is for smoothly rotating the female screw portion 50. The ring packing 52 is for preventing water from entering through the second through hole 21. The spring washer 54 is composed of two spring washers. It may be a general spring washer or a Nord-lock washer. The Nord-Lock washer has a rib on the surface that strongly grips the bolt and the mating material, and the cam inside the 2-disc set is designed to be larger than the lead angle of the bolt, so when return rotation occurs, the thickness of the washer increases and the bolt head Is lifted and the axial force rises due to the wedge lock effect, so the structure does not loosen.

A handle 51 is formed on the female screw portion 50 so that the female screw portion 50 can be easily rotated with bare hands. The handle 51 can tighten the female screw portion 50 and urge the pressing plate 20 without using a tool or the like.
A mark portion 60 is provided on the most outdoor side of the male screw portion 40. The mark portion 60 is cylindrical and has a through hole near one end, and the male screw portion 40 is penetrated therethrough. The mark portion 60 is fixed to the male screw portion 40 with nuts 61 from the underfloor space side and the outdoor side, and the male screw portion 40 and the mark portion 60 are integrated. The other end of the mark portion 60 is arranged so as to face the same direction as the L-shaped protrusion of the hook portion 42. When the user rotates the mark portion 60 by a certain amount, the male screw portion 40 integrated with the mark portion 60 rotates, and at the same time, the hook portion 42 also rotates by a constant amount. Therefore, the protruding direction of the hook portion 42 and the protruding direction of the mark portion 60 are always the same.
Therefore, the user can confirm the protrusion direction of the L-shape by looking at the direction of the mark portion 60 without directly looking at the L-shape of the hook portion 42. Therefore, the direction of the L-shaped protrusion can be confirmed in the direction of the protrusion of the mark portion 60 during or after the installation work of the ventilation port inundation prevention device 1, so that workability can be improved.
The mark portion 60 may be, for example, a mark attached to the male screw portion 40, as long as it can indicate the direction of the L-shaped protrusion.

When the hook portion 42 and the male screw portion 40 are integrated, the tip portion of the male screw portion 40 has an L-shaped shape. Since the hook portion 42 is a portion that directly hits the lattice 82, it is preferable that the hook portion 42 is not threaded so as not to damage the lattice 82 unnecessarily.
When the hook portion 42 and the male screw portion 40 are separate types, the hook portion 42 and the male screw portion 40 are connected by using the joint portion 41. At that time, the end of the hook portion 42 on the male thread portion 40 side is threaded so as to be able to connect to the joint portion 41. By using the joint portion 41, the hook portion 42 can be separated and the depth as a whole can be shortened when the ventilation port inundation prevention device 1 is stored. Therefore, the storage space can be reduced, which is preferable. Although not shown, nuts 61 for fixing the rotation at suitable positions are provided between the male screw portion 40 and the joint portion 41 and between the joint portion 41 and the hook portion 42, respectively. It is also possible to take the mode of

Further, the ventilation port inundation prevention device 1 is provided with a cover 70 to prevent damage to the ventilation port inundation prevention device 1 at the time of flood after the installation is completed. The cover 70 also has an effect of preventing the flowing dust and the like from being caught in the fixed portion 30 when a flood or the like occurs after the ventilation port inundation prevention device 1 is installed. If the cover 70 is not used, when the ventilation port inundation prevention device 1 is to be removed after a disaster, the caught dust may interfere with the removal and the removal may not be smooth. Further, if the cover 70 is not used, the flowing dust or the like may hit the female screw portion 50 or the mark portion 60 and loosen the screw. A cover 70 is required to prevent such a defect. The cover 70 may be opaque or transparent. By making it transparent, it is preferable because the state of the fixed portion 30 can be confirmed after the cover is attached.

A procedure for installing the ventilation port inundation prevention device 1 at the ventilation port 80 will be described with reference to FIG. First, the ventilation port inundation prevention device 1 is brought close to the ventilation port 80. With the positioning unit 13, the ventilation port inundation prevention device 1 can be reliably installed at an appropriate position of the ventilation port 80. Since the packing 12 comes into contact with the ventilation port 80 evenly on the left and right sides, the waterproof effect can be appropriately exhibited.
At this time, the protruding direction of the mark portion 60 is set to the upward or downward direction. By doing so, the protrusion direction of the hook portion 42 is directed upward or downward in conjunction with the protrusion direction of the mark portion 60. The hook portion 42 can smoothly pass between the grids 82 of the ventilation port 80 (FIG. 4A).

Next, the protruding direction of the mark portion 60 is set to the right or left direction. By doing so, the protrusion direction of the hook portion 42 is directed to the right or left in conjunction with the protrusion direction of the mark portion 60. The protruding portion of the hook portion 42 is at a position where it is locked to the grid 82 (FIG. 4 (b)).

Next, the handle 51 of the female screw portion 50 is rotated, and the female screw portion 50 is screwed into the underfloor space side. The distance between the female screw portion 50 and the hook portion 42 is narrowed, the hook portion 42 is locked to the lattice 82, and the female screw portion 50 urges the pressing plate 20. The female screw portion 50 is screwed in to such an extent that the ventilation port inundation prevention device 1 is sufficiently and firmly fixed to the ventilation port 80.
By checking the protrusion direction of the mark portion 60 when screwing the female screw portion 50, it is possible to prevent the male screw portion 40 from rotating unnecessarily and the protrusion direction of the hook portion 42 from being displaced from the left-right direction. Further, when the female screw portion 50 is rotated, the mark portion 60 can be used as a handle, and the installation workability can be improved (FIG. 4 (c)).
After the fixing of the ventilation port inundation prevention device 1 to the ventilation port 80 is completed, the cover 70 is put on the fixing portion 30 to prevent dust flowing due to flood or the like from adhering to the fixing portion 30.

In this way, by having the mark portion 60 indicating the direction of the protruding portion of the hook portion 42, the operation of the hook portion 42 hidden behind the water stop plate 10 and invisible can be easily grasped, and the ventilation port inundation prevention device 1 is installed. The work can be done smoothly and in a short time.

The urging of the fixing portion 30 on the water blocking plate 10 will be described with reference to FIG. When fixing the ventilation port inundation prevention device 1 to the ventilation port 80, it is necessary to firmly fix it because it is necessary to withstand a large force such as a flood. At that time, the deformation of the water stop plate 10 becomes a problem. When a force is applied only to the central portion of the water stop plate 10 as shown by the arrow A in FIG. 5 (a), the water stop plate 10 is greatly distorted, the degree of adhesion between the ventilation port 80 and the packing 12 is lowered, and water is flooded. The possibility is high (Fig. 5 (a)).
On the other hand, by using the pressing plate 20, the distortion of the water blocking plate 10 can be reduced. The pressing plate 20 has a dish shape, and is in contact with the water blocking plate 10 at the surrounding extending portion 22. Therefore, the force from the pressing plate 20 to the water blocking plate 10 is dispersed around the pressing plate 20. By once urging the water stop plate 10 from the fixing portion 30 via the pressing plate 20, the force is dispersed vertically and horizontally as shown by the arrow B in FIG. 5 (b), and the force is distributed to the entire water stop plate 10. Therefore, it will be urged on average. Therefore, the distortion of the water stop plate 10 can be reduced, and the possibility of water ingress can be reduced without lowering the degree of adhesion between the ventilation port 80 and the packing 12 (FIG. 5 (b)).

In this way, by using the pressing plate 20 having the extending portion 22, even if the ventilation port inundation prevention device 1 is firmly fixed to the ventilation port 80, the distortion of the water blocking plate 10 can be reduced and the distortion can be reduced. It is possible to prevent inundation due to the above, and it is possible to obtain a high-performance ventilation port inundation prevention device 1.

The ventilation port inundation prevention device according to the present invention is considered to have great industrial applicability as a technique for preventing the inflow of water or the like into the ventilation port during a flood.

1 Ventilation port inundation prevention device 10 Water stop plate 11 First through hole 12 Packing 13 Positioning part 20 Pressing plate 21 Second through hole 22 Extension part 30 Fixing part 40 Male thread part 41 Joint part 42 Hook part 50 Female thread part 51 Handle 52 Ring packing 53 Washer 54 Spring washer 60 Marking part 61 Nut 70 Cover 80 Ventilation port 81 Ventilation frame 82 Lattice

Claims (5)

It is a ventilation port inundation prevention device that closes the ventilation port that is installed on the foundation of the building and connects the underfloor space and the outdoors.
A water stop plate that is larger than the ventilation port and has a first through hole,
The packing provided around the surface of the water stop plate on the underfloor space side,
A pressing plate provided on the outdoor side surface of the water stop plate, having a second through hole that overlaps with the first through hole, and an extension portion extending in the direction of the water stop plate from the surroundings is in contact with the water stop plate. ,
It consists of a fixing part that fixes the water stop plate to the ventilation port.
The fixing portion consists of an L-shaped hook portion, a male screw portion, a female screw portion, a ring packing, and a mark portion.
The male thread portion penetrates the first through hole and the second through hole,
The hook part is arranged at the end of the male screw part on the underfloor space side,
A ring packing is passed through the outdoor side of the male threaded part, and the female threaded part is screwed in.
The female thread part urges the ring packing to the pressing plate and
The mark portion is a ventilation port inundation prevention device characterized by indicating the direction of the protruding portion of the hook portion. The ventilation port inundation prevention device according to claim 1, wherein the female screw portion has a handle structure. The ventilation port inundation prevention device according to claim 1 or 2, further comprising a cover portion that can be attached to the fixed portion. The ventilation port inundation prevention device according to any one of claims 1 to 3, wherein a plurality of positionings are arranged on the surface of the water stop plate on the ventilation port side. The ventilation port inundation prevention device according to any one of claims 1 to 4, wherein a joint portion is provided between the hook portion and the male screw portion.

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