JPH11148205A - Drainage structure of outdoor floor part of building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily recognize abnormal drainage by setting the water suction level of a drainage system for overflow to be higher than the water suction level at a regular drainage system, and piercing a lower end of the drainage system for overflow in an eaves soffit of a building. SOLUTION: A drainage system 12 for overflow to be used in an emergency such as a heavy rain is provided in addition to a regular drainage system 11. The drainage system 12 for overflow is provided with a drainage hole of the drainage device 11 which is at higher level than a drainage hole of the drainage system 11, and a lower end part which is pierced through a verandah 13 and projected open from an eaves soffit 17. In an emergency such as a heavy rain, rain flows in from the drainage hole of the drainage system 12, the rain flowing out of the lower end part of the drainage system 12 is driven against a floor part downstairs to generate the water sound. Thus, an inhabitant can clearly recognize that the drainage system for overflow is operated, and a rapid action can be taken.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage structure for an outdoor floor of a building for draining the outdoor floor of a building such as a veranda or a balcony. The present invention relates to a drainage structure for an outdoor floor of a building provided with a drainage mechanism for overflow for drainage.

[0002]

2. Description of the Related Art In general residential buildings, apartments and condominiums, and apartment buildings and high-rise office buildings and the like, verandas, balconies, etc. are provided on two or more floors outdoors, or on a roof or a top floor. A rooftop (hereinafter, referred to as a veranda or the like) may be provided in a portion corresponding to the top. The floor of such a veranda is usually provided with a drainage mechanism for draining water used for rain or cleaning, and the drainage mechanism is a drain port opened on a part of the floor of the veranda or the like. And a drainage channel that is continuous with the drainage port, and drains rainwater from the floor using a height difference so that the inflowing rainwater or the like does not accumulate on the veranda or the like.

FIG. 8 is a sectional view of a drainage mechanism provided on a conventional veranda. The veranda 80, which is a structure such as a concrete material, is formed with a gentle slope, and a drain port 82 for draining unnecessary water is provided on the floor near the waist wall 81 of the veranda 80. . The drain 82 is provided with a drain pipe 8 passing through the inside of the structure of the veranda 80.
3, a lid 84 is provided facing the floor of the veranda 80 at the drain port 82 to prevent large dust, earth and sand from directly flowing in. The drain pipe 83 extends from the eaves 85 to the gutter 86, and the gutter 86 extends along the outer wall of the lower floor to drain unnecessary water.

A veranda 80 having such a drainage mechanism
In recent years, dead leaves, fallen leaves, dirt, earth and sand, and the like may accumulate on the outside of the lid 84 due to recent diversification of the use state of the veranda or long-term use. If) stays, the drainage function may be reduced or even completely clogged. When the drainage function deteriorates, a large amount of water W
When the water accumulates on the veranda 80 and the water level increases, water may flow into the room 87 beyond the threshold 88 between the veranda 80 and the room 87. If water flows into the room, the equipment in the room 87 will be soiled and damage will occur.

As a mechanism for preventing such a situation of flooding in a room, there is known a drainage structure in which a plurality of drainage ports are provided on the floor of a veranda. Also, in order to prevent the adverse effects caused by the deterioration of the drainage function, some conventional drainage mechanisms include an overflow drainage mechanism used in an emergency in addition to a normally used drainage mechanism. Some are known. FIG. 9 shows an example of a conventional overflow drainage mechanism. A drain pipe 92 for overflow is formed so as to penetrate the waist wall 91 of the veranda 90. The drain pipe 92 has a substantially L-shape in which the downstream end is bent downward, and the height of a drain port 93 opening inside the waist wall 91 is higher than the floor of the veranda 90 where normal drainage is performed. Is lower than the threshold between the veranda 90 and a room (not shown).
It can be thrown out of one.

FIG. 10 shows another conventional drainage mechanism for overflow, which has a structure integrated with a normal drainage mechanism. Lid 1 of this drainage mechanism
Numeral 01 has an upper and lower two-stage structure, in which a plurality of lower holes 102 formed in the lower portion function as normal drain holes, and a plurality of upper holes 103 formed in the upper portion function as emergency drain holes. . That is, even when the lower hole 102, which is a normal drain port, is clogged with dust or fallen leaves, the water accumulated in the upper hole 103 can be discharged in an emergency such as heavy rain. Both holes 102, 103 of the lid 101 are connected to a drain 104 passing through the common veranda structure, and the drain 104 is connected to a gutter 105. The gutter 105 extends along the outer wall of the lower floor to drain water.

[0007]

However, in a structure in which a plurality of outlets are provided on the floor of the veranda, there is no difference in the water absorption level of each outlet, and even if one outlet is clogged, there is a large difference. Since no water pool is formed, all the drains are eventually left to be clogged, and it cannot be recognized that garbage and fallen leaves have begun to accumulate, and when all the clogs are clogged, indoor flooding occurs. In addition, when arranging multiple drain outlets, a wall to fix the gutter on the lower floor is required at the position corresponding to each drain outlet, but if there is a window or door at the position corresponding to the drain outlet, A gutter cannot be provided.

The drainage mechanism provided with the overflow drainage device as shown in FIGS. 9 and 10 has the following problems. That is, in the drainage structure in which the drainage pipe 92 having a substantially L-shape is provided as shown in FIG. 9, it is possible to prevent water from flowing out of the drainage pipe 92 when a normal drainage outlet is clogged, thereby preventing the room from being flooded. The tip of the drain pipe 92 always projects from the waist wall 91, which impairs the appearance of a house such as a house. The presence of tube 92 reduces its value. In addition, drain port 9
Water and scales that drips from the surface 2 can also impair the beauty of the outer wall.

In the overflow drainage mechanism shown in FIG. 10, when dust and fallen leaves are left alone, only the lower hole 102 is initially clogged and can be drained from the upper hole 103 as described above, thereby preventing water from entering the room. However, if even the upper hole 103 is clogged by leaving it alone, indoor flooding occurs. In the case where the normal drainage mechanism and the overflow drainage mechanism are combined, even if the lower hole 102 is clogged by dirt or fallen leaves and the water is drained from the upper hole 103, it is usually seen by humans. It is extremely difficult to detect the situation on an unoccupied roof, etc., and even if it is recognized that water is being discharged along the gutter 105, it cannot be distinguished from which hole, and often As a result, the room may be flooded.

In view of the above problems, the present invention does not impair the beauty of the outer wall of a veranda or the like, and when a normal drain port is clogged and drainage is performed from an emergency drain port, It is an object of the present invention to provide a drainage structure for an outdoor floor of a building having a structure capable of easily recognizing the abnormality.

[0011]

The drainage structure for an outdoor floor of a building according to the present invention has a normal drainage device and an overflow drainage device, and the overflow drainage device has a water absorption level in a normal drainage device. The overflow drainage device is characterized in that the drainage lower end of the overflow drainage device penetrates the eaves of the building.

In one embodiment of the drainage structure for an outdoor floor of a building according to the present invention, the lower end of the drainage in the overflow drainage device is configured to project from the eaves without being connected to a gutter. The normal drainage device and the overflow drainage device are provided on a veranda of a building, for example. In addition, it is preferable that the lower end of the drainage in the overflow drainage device is arranged so as to be visible from the opening of the building on the lower floor facing the eaves sky.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a drainage structure for an outdoor floor of a building according to the present invention will be described with reference to FIGS. As shown in FIG. 1, the drainage structure of the outdoor floor of the building according to the present embodiment includes a veranda 13 provided on a part of the second or higher floor of a residential building having the second or higher floor. The drainage structure is installed on the floor 15 of the vehicle, and has a normal drainage device 11 and an overflow drainage device 12. As shown in FIG. 4, the veranda 13 is an extension portion for exiting from the room interior 21 of the building to the outside of the building.
A sash 22 or a door is provided between the room 21 and the veranda 13 as an entrance. Note that the room 21 is a normal dwelling part such as a Western-style room or a Japanese-style room, but is not particularly limited. The veranda 13 is made of a structural material such as concrete, and forms a part of a building having sufficient strength. The waist wall 14 is also connected to the veranda 13 with a structural material such as concrete for the purpose of fall prevention and privacy protection. As shown in FIG. 4, the waist wall 14 surrounds the veranda 13 in a substantially U-shape when viewed from above. Is provided.

As shown in FIG. 1, the veranda 13 is formed with a gentle inclination such that the sash 22 side is slightly higher and the front side of the veranda 13 opposite to the sash 22 side is lower. Therefore, when rain falls on the veranda 13, the rainwater flows to the front side of the veranda 13 along the gentle slope. On the front side of the veranda 13, a groove 16 in which a part of the floor portion 15 is lowered is provided in a straight line along the waist wall 14 from a portion where the waist wall 14 rises with a predetermined width. The rainwater that has fallen into the groove 16 reaches the groove 16 after flowing along a gentle slope.

The drainage structure of the outdoor floor of the building according to the present embodiment has a normal drainage device 11 and an overflow drainage device 12 installed in the groove 16. The groove 1
6, a gentle slope is provided so that the normal drainage device 11 side is lower than the overflow drainage device 12 side, and the position of the drainage device 11 is set on the veranda 1.
3 is the lowest height. In other words, the rainwater is configured to concentrate on the ordinary drainage device 11.

As shown in FIG. 5, the ordinary drain device 11 has a drain port 31 which is an opening facing the bottom of the groove 16, and the height of the drain port 31 becomes the level of water absorption. . The drain port 31 is provided with a lid 32 made of a material such as a stainless steel material or a synthetic resin. The lid 32 is detachable from the drain port 31. A large number of holes are provided on the entire surface of the lid portion 32 with sufficient dimensions, and the lid portion 32 itself is provided so that dust, dirt, and the like do not flow directly and clog the drainage mechanism. . The drain pipe 33 is a drain port 31 facing the floor 15 of the veranda.
And vertically extending through the inside of the structural material of the veranda 13.

The bottom of the drain pipe 33 is configured to protrude downward from the eaves 17 of the veranda 13, and a connecting portion 34 is provided.
Through the rain gutter 35 which is a hollow tube. As shown in FIG. 6, the rain gutter 35 extends obliquely toward the wall at the lower part of the eaves sky 17, and extends linearly further right below when it hits the lower floor wall of the building. Since the rain gutter 35 cannot be provided so as to pass right outside the window on the downstairs, the gutter 35 is provided at a position to be a wall at a portion downstairs. In addition, the said normal drainage apparatus 11 is not necessarily limited to what is necessarily connected to a rain gutter, and it is good also as a structure through another drainage channel.

In addition to such a normal drainage device 11, the drainage structure of the present embodiment has an overflow drainage device 12 used in an emergency such as a heavy rain. As shown in FIGS. 4 and 5, the overflow drainage device 12 is installed in a groove 16 formed in the veranda 13 on the opposite side of the normal drainage device 11. 2 and 3
The details of the overflow drainage device 12 are shown in FIG. The overflow drainage device 12 includes a cylindrical portion 41 made of a non-rusting material such as stainless steel or a material such as a metal or a synthetic resin coated with a rust preventive paint, and a continuous portion of the cylindrical portion 41. A hemispherical head 43, a drain port 42 formed of a plurality of vertically long holes formed near the head 43, and a veranda 13 connected to the cylindrical portion 41.
And a lower end portion 45 that is partly protruded from the eaves 17 and is open.

The cylindrical portion 41 stands substantially vertically from the groove 16 and is hollow. In an emergency such as heavy rain, rainwater flows in from the drain port 42, and water flows through the hollow interior of the cylindrical portion 41 to be drained. Further, a plurality of drain ports 42 are provided at positions where the dust and fallen leaves are not clogged even if they accumulate around the cylindrical portion 41. The shape of each drain port 42 is not limited, and any shape may be used as long as it prevents dust and earth and sand from directly flowing in and does not block the drain pipe 44. In the present embodiment, the height of the drain port 42 is higher than the drain port 31 facing the floor portion 15 of the veranda of the ordinary drain device 11 as shown in FIG. Sash 22 between veranda 13 and room 21
Is at a lower level than the lower end 23 of. Therefore, even if the drain port 31 of the ordinary drain device 11 is blocked by dust or fallen leaves, the drain port of the overflow drain device 12 does not reach the lower end 23 of the sash 22 before the rainwater reaches. Rainwater reaches the height of 42, from which unnecessary water is discharged.

A drainage pipe 44 connected to the cylindrical portion 41 penetrates the structure made of, for example, concrete of the veranda 13 in a straight line and perpendicularly, and a lower end portion 45 of the veranda 13 projects from the eaves 17 of the veranda 13 and opens. Is configured.
The diameter of the drain pipe 44 is concentric with and the same as the diameter of the cylindrical portion 41, but may be different. Unlike the above-described ordinary drainage device 11 side, the lower end 45 is left open. That is, the lower end 45 has a structure in which the rain gutter is not continuous. This is for confirming that the overflow drainage device 12 is draining by visual observation from the downstairs, and this is because the visual observation cannot be performed when the drainage is guided by the rain gutter. Therefore, the formation position of the overflow drainage device 12 is any position in the veranda 13 and is not particularly limited. However, the vicinity of the location where the downstairs window is located is a more preferable position.

With such a structure, the drainage structure of the outdoor floor of the building according to the present embodiment has a structure in which the floor 15 and the groove 16 of the veranda 13 fall when it is rained in a normal time when there is no clogging with garbage or fallen leaves. Drains the rainwater flowing through the
Drain using 1. That is, the water flowing from the drain port 31 reaches the rain gutter 35 through the drain pipe 33, and is drained to the sewer through the rain gutter 35. At this time, since the overflow drainage device 12 is located at the plurality of drainage ports 42 formed in the cylindrical portion 41 at a position where the water absorption level is higher than the drainage position 31, it hardly contributes to the drainage of the veranda. .

However, when dust or fallen leaves leave the veranda 13 and the lid 32 of the ordinary drainage device 11 is clogged, and the drainage function of the ordinary drainage device 11 is reduced or stopped, the next time, Is a normal drainage device 11
Instead, the drainage device for overflow 12
3. Drain the water. When the rain falls on the veranda 13, the drain port 31 is clogged, so that water gradually accumulates in the groove 16 or a lower position of the veranda 13, and the water level gradually rises as the rain continues to fall. Before the water level becomes higher than the lower end of the sash 22 between the veranda 13 and the room 21, the drain port 42 of the overflow drainage device 12 is used.
, And discharge of rainwater from the drain port 42 is started. Therefore, flooding of the room 21 is prevented beforehand by the overflow drainage device 12.

The water flowing into the drain port 42 is
1 to the drain pipe 44, and further to the lower end 4
From 5 flows downstairs with water flow. Also, the lower end 45
The water that has flowed out of the floor is hit on the floor below that floor, generating a water noise caused by the head of one floor. This lower end 45
The water flow from can be seen through the window downstairs, and the sound of the falling water is accompanied by the sound of water. Therefore, it is possible to clearly make the resident know that the overflow drainage device 12 is operating, and to promptly take an action to cope with this abnormal situation.

FIG. 7 is a diagram showing another embodiment. In this embodiment, an overflow drainage device 72 is provided together with a normal drainage device 71 on the rooftop 70 instead of the veranda. A penthouse 73 is provided on the rooftop 70 as a part of a building, and is connected to a building part below the floor by a staircase 74. Even in a building having such a structure, when the water level exceeds the lower end 75 of the entrance of the rooftop stairs 74, water flows downstairs to cause damage, but the overflow drainage device 72 of this embodiment operates. Thus, flooding can be prevented.

The overflow drainage device 72 includes:
Similarly to the above-described device, a drain port 62 is provided on the head side of the cylindrical portion 61.
Is lower than the inlet lower end 75 and the drain port 76 of the drain device 71
The lower end 65 of the drain pipe 64 is provided at a higher position and extends so as to pass through the structure of the roof 70.
Is opened in front of the window 77 on the floor immediately below the floor. When the normal drainage device 71 cannot be drained due to clogging, the overflow drainage device 72 allows the water to flow downstairs in a visible form, so that the residents can be clearly recognized that the overflow drainage device 12 is operating. And quick response is possible.

In the above-described embodiment, an example in which the overflow drainage device and the ordinary drainage device are installed on the veranda and the roof has been described. However, these installation locations may be other locations, for example, windows. It may be a space for an outside flower box, a balcony, a space such as a private garden of an apartment house, or the like. Further, in the overflow drainage device, a drainage pipe extending straight from the cylindrical portion has been described. However, the drainage device may bend in accordance with the structure of the veranda or the like. In addition, the drainage form of the overflow drainage device does not depend on the opening, and other forms are possible as long as the drainage form can be easily viewed.

[0027]

The drainage structure of the outdoor floor of the building according to the present invention is as follows.
Even when garbage and fallen leaves accumulate on the outdoor floor such as the veranda, and the normal drainage mechanism makes it impossible to drain,
Since the overflow drainage device can drain the water before the abnormal water level due to rainwater or the like exceeds the lower end portion of the window or the like, it is possible to prevent the ingress of water into the room. The drainage by the overflow drainage system is performed in a manner that is visible from the lower end of the drainage pipe that opens into the eaves, so that the residents can clearly recognize that the overflow drainage system is operating, Quick response is possible. The overflow drainage device does not need to be further formed on the outer wall of the veranda or the like, and is simply formed to penetrate downstairs, so that the appearance of the outer wall is not spoiled. In addition, overflow drainage and normal drainage
Since they can be installed in parallel and penetrate through the structure of the veranda, they are structurally common, so that rationalization of construction can be promoted.

[Brief description of the drawings]

FIG. 1 is a perspective view around a veranda showing an embodiment of a drainage structure for an outdoor floor of a building according to the present invention.

FIG. 2 is a cross-sectional view showing the structure of the overflow drainage device of the embodiment.

FIG. 3 is a sectional view showing a structure near a drain port of the overflow drain device according to the embodiment, with a part of a veranda cut away.

FIG. 4 is a plan view near a veranda of the embodiment.

FIG. 5 is an elevational view showing the structure of the veranda in the vicinity of the veranda of the embodiment, in which the structure is broken.

FIG. 6 is a perspective view of the one embodiment as viewed from the lower side of the veranda.

FIG. 7 is a cross-sectional view showing another embodiment in which drainage devices are provided on the roof of a drainage structure on an outdoor floor of a building according to the present invention.

FIG. 8 is a sectional view showing an example of a conventional drainage device.

FIG. 9 is a cross-sectional view showing another example of a conventional drainage device.

FIG. 10 is a sectional view showing still another example of the conventional drainage device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Normal drainage device 12 Overflow drainage device 13 Veranda 14 Waist wall 15 Floor 16 Groove 17 Eaves 21 Room 22 Sash 31 Drainage outlet 32 Lid 33 Drainage pipe 35 Rain gutter 41 Cylindrical part 42 Drainage port 44 Drainage pipe 45 Lower end Part 51 Window

Claims (4)

[Claims] 1. A drainage device having an ordinary drainage device and an overflow drainage device, wherein the water absorption level of the overflow drainage device is higher than the water absorption level of the normal drainage device, and the drainage lower end of the overflow drainage device is a building eaves. A drainage structure for the outdoor floor of a building, which is penetrated through the sky. 2. The drainage structure for an outdoor floor of a building according to claim 1, wherein the lower end of the drainage in the overflow drainage device projects from the eaves without being connected to a gutter. 3. The drainage structure for an outdoor floor of a building according to claim 1, wherein the normal drainage device and the overflow drainage device are installed on a veranda of the building. 4. The drainage device according to claim 1, wherein a lower end of the drainage in the overflow drainage device is arranged so as to be visible from an opening of a building on a lower floor facing the eaves sky.
4. The drainage structure for an outdoor floor of a building according to any one of items 2 and 3.