JP2820353B2 - Rainwater utilization system for unit buildings - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rainwater use system for unit buildings that uses rainwater for domestic wastewater and the like.

[0002]

2. Description of the Related Art Conventionally, drinking water has been mostly used for flushing water in flush toilets in houses and the like.

[0003] Generally, it is said that about 30 liters of water per adult per day is consumed as toilet flush water, and some improvement is required from the viewpoint of saving water resources.

[0004] In Japan, the amount of precipitation is relatively large throughout the year. Focusing on this point, see, for example,
A rainwater use system for buildings as disclosed in Japanese Patent No. 60922 is proposed. According to this, water resources can be saved by using rainwater for toilet flush water in the flush toilet.

[0005]

However, in the case of the above-mentioned rainwater utilization system, tanks and pumps for storing rainwater must be installed on the roof of the building or in the garden, which results in a large equipment cost. However, there is a problem that a running cost for driving is also required.

The present invention has been made in view of such a situation, and an object of the present invention is to provide a simple rainwater use system for unit buildings which does not require much equipment cost and running cost.

[0007]

To achieve the above object, a rainwater utilization system for a unit building according to the first aspect of the present invention provides a rainwater utilization system for a unit building having a unit ceiling.
A rainwater storage unit connected to the rainwater collecting means and piping provided outside the unit building,
The rainwater collecting means is provided in the unit ceiling of the unit building at a position downstream of the rainwater collecting means, and a rainwater discharging portion connected to the rainwater storing portion by a pipe is downstream of the rainwater storing portion. by positioning placed inside the unit building, and the discharge of rainwater from the rainwater discharge unit characterized by performing the natural flow of rainwater.

[0008]

[0009]

According to the rainwater utilization system for a unit building according to the first aspect, the rainwater storage unit connected to the rainwater collecting means provided outside the unit building by a pipe is downstream of the rainwater collecting means. It is located on the side with the unit building Yu
Provided in the knit ceiling, the rainwater discharge portion connected by rainwater reservoir and the pipe is disposed inside the unit building is located downstream from the rainwater reservoir, the discharge of rainwater from the rainwater discharge portion Since rainwater is generated by gravity, it does not require any power for draining rainwater,
Equipment costs and running costs can be reduced.

[0010] Also, according to the unit rainwater utilization system for buildings according to claim 1, there is a large dead space in the unit ceiling units building. Furthermore, the unit joist has sufficient structural strength. Therefore, Yu
Rainwater can be stored without affecting the structure of the knitted building. Further, there is an advantage that the floor sound insulation performance is improved by the stored rainwater.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a rainwater utilization system for unit buildings according to the present invention will be described below with reference to the drawings.

First, the configuration will be described.

FIG. 1 is an explanatory view showing a rainwater utilization system for a unit building according to the present invention.

In FIG. 1, reference numeral 1 denotes a unit building, which includes a first-floor building unit 11, a second-floor building unit 12, and a roof unit 13.

The first-floor building unit 11 includes a floor beam 21, a floor joist 22, a floor panel 23, a unit ceiling 24, and columns (not shown).

The unit ceiling 24 includes a ceiling panel 25 and a ceiling joist 26. A veranda 31 is overhanged on the outer wall of the second-floor building unit 12 (outside the unit building 1), and has a rain gutter 31A as rainwater collecting means.

A pipe 32 is connected to the rain gutter 31A.
Downstream of the pipe 32, a polytank 33 as a rainwater storage section made of vinyl chloride provided on the upper surface of the ceiling joist 26 is connected.

A pipe 34 is connected to the poly tank 33,
Downstream of the pipe 34, a tank 35 of a first-floor toilet as a rainwater discharge unit is connected.

Reference numeral 41 denotes an eaves gutter as rainwater collecting means disposed at the eaves of the roof unit 13 (outside the unit building 1).

A pipe 42 is connected to the eaves gutter 41. Downstream of the pipe 42 is a rainwater storage section, also made of vinyl chloride, provided on the upper surface of the ceiling joist 43 of the second-floor building unit 12. Are connected.

A pipe 45 is connected to the poly tank 44.
Downstream of the pipe 45, a tank 46 of a second floor toilet as a rainwater discharge unit is connected. Note that the configuration of the second-floor building unit is the same as the configuration of the first-floor building unit, and a description thereof is omitted.

Next, the operation of the rainwater utilization system for a unit building having the above-described configuration will be described.

Rain gutter 3 provided outside unit building 1
1A and the eaves gutter 41 and the poly tanks 33 and 44 connected by the pipes 32 and 42 are both located downstream of the rain gutter 31A or the eaves gutter 41 and are located inside the ceiling of the unit building 1 (for the ceiling joists 26 or 43). (Upper surface portion), and these poly tanks 33, 44 and pipes 34, 45
1st or 2nd floor toilet tank 3 connected by
5, 46 are located in the unit building 1 downstream of the plastic tank 33 or 44,
The drainage of rainwater from these tanks 35 and 46 is performed by natural flow of rainwater. Therefore, no power is required for discharging rainwater, and equipment costs and running costs can be significantly reduced as compared with the conventional large-scale rainwater utilization system.

In the case of the unit building 1, it is known that there is a large dead space above the unit ceiling 24 and the like, and that the unit ceiling joists 26 and 43 have sufficient structural strength. Therefore, it is possible to store rainwater without affecting the structure of the building. Furthermore, since it functions as a stored rainwater sound absorbing material, there is an advantage that the floor sound insulation performance between the first floor portion and the second floor portion is improved.

It should be noted that the present invention is not limited to the above-described embodiment, but also includes design changes and the like made by those skilled in the art. For example, in the above-described embodiment, a single-family unit house is taken as an example, but a unit having a reinforced concrete structure is used.
It can also be used in G-type apartment buildings.

[0026]

As described above, according to the rainwater utilization system for a unit building according to the first aspect, the unit is connected to the rainwater collecting means provided outside the unit building by a pipe. A rainwater storage unit is located downstream of the rainwater collecting means and provided in the unit ceiling of the unit building, and a rainwater discharge unit connected to the rainwater storage unit by a pipe is downstream of the rainwater storage unit. It is located on the side unit
It is arranged inside the building, and since the rainwater is discharged by the natural flow of the rainwater from the rainwater discharge unit, it does not require any power for rainwater discharge, and it is possible to reduce equipment costs and running costs. It works.

Furthermore, according to the unit rainwater utilization system for buildings according to claim 1, there is a large dead space in the unit ceiling units buildings, moreover, unit ceiling joists, structural strength is sufficient. Therefore, Yu
Rainwater can be stored without affecting the structure of the knitted building. Furthermore, the effect that floor sound insulation performance improves by the stored rainwater can be expected.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a rainwater utilization system for a unit building according to the present invention.

[Explanation of symbols]

1 unit building 24 unit ceiling 31A rain gutter (rainwater collecting means) 41 eave gutter (rainwater collecting means) 32, 42 piping 33, 44 plastic tank (rainwater collecting means) 26, 43 ceiling joist (inside ceiling) 34, 45 Piping 35, 46 Toilet tank (rainwater discharge section)

Claims (1)

(57) [Claims] 1. A unit building provided with a unit ceiling
A rainwater collecting system, wherein a rainwater reservoir connected by piping to a rainwater collecting means provided outside the unit building is located downstream of the rainwater collecting means.
A rainwater discharge unit provided in the unit ceiling of the unit building and connected to the rainwater storage unit by a pipe is located downstream of the rainwater storage unit and disposed inside the unit building, and the rainwater from the rainwater discharge unit is disposed. A rainwater use system for unit buildings, characterized in that water is discharged by natural flow of rainwater.