JPH0715944Y2 - Roof rainwater drainage structure - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Use) The present invention relates to a roof rainwater drainage structure for promptly draining rainwater that has fallen on a large roof of a factory or the like.

(Prior art) Generally, the drainage system of rainwater that has fallen on the roof flows down the sloping roof surface and flows into the gutter provided along the lower edge of the roof surface, and the rainwater from the gutter is provided outdoors by the gutter. It is drained (see, for example, Japanese Utility Model Laid-Open No. 60-99634).

However, in rainwater drainage channels of buildings with large roofs such as factories, rainwater that has fallen on the roof flows down along the roof surface and is accumulated in a gutter provided along the lower edge of the roof surface.
The rainwater accumulated on the gutter is drained to the outside by a down gutter. With such a drainage system, if the gutter is long,
Since the drainage cross-sectional area of the gutter and gutter is restricted, part of the rainwater flowing through the gutter is made to flow down by the gutter provided indoors, and drained to the outside through the floor drainage provided in the indoor floor. I have to.

(Problems to be solved by the invention) The dimensions of gutters, troughs, floor drains, etc. are determined in consideration of the maximum amount of rainfall in the past. The area may be expanded each time, and the initial drainage cross-section may not be enough. In such a case, in the case of a factory, it is often difficult to carry out an increased cross-section construction of a floor drainage channel provided indoors due to the relationship between the indoor production line, existing equipment such as robot pits, etc. .

These floor drainage channels often have problems such as heavy indoor rainfall caused by heavy rainfall, causing interruption of line operation, damage to equipment and equipment, and further improvement work of floor drainage channels. Have problems such as long-term interruption of operations and large-scale construction.

Therefore, the object of the present invention is to prevent roof interruptions and damage to equipment and devices by promptly draining the roof rain even if the roof area increases due to expansion work, etc. To provide the structure.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the roof rainwater drainage structure of the present invention has a gutter provided along the lower edge of the sloping roof surface including the extension part. In a rainwater drainage structure that distributes and drains rainwater to a floor drainage channel through a vertical gutter provided indoors and an outdoor drainage channel through a vertical gutter provided outdoors, an intermediate height position of the roof surface The auxiliary water collecting gutter formed by the weir and the roof surface provided along the direction orthogonal to the gradient direction, and the auxiliary water collecting gutter under the auxiliary water collecting gutter and gradually along the auxiliary water collecting gutter. Has a gradient that makes the separation distance large,
A drainage pipe for guiding rainwater to the outside and a connecting pipe for connecting rainwater from the auxiliary water collection gutter to the drainage pipe by connecting between the auxiliary water collection gutter and the drainage pipe are provided.

(Operation) Rainwater that falls on the roof surface above the auxiliary water collection gutter formed by the sloping roof surface and weir accumulates in the auxiliary water collection gutter, and is guided to the outside of the building by the drainage pipe through the connecting pipe and further auxiliary collection water. Rainwater that falls on the roof surface below the water gutter is accumulated in a gutter provided along the lower edge of the roof surface, and is distributed indoors and outdoors according to the water gradient of the gutter to be drained indoors. The amount of rainwater flowing downstream from the vertical gutter arranged in the area will be reduced, and the amount of rainwater flowing through the floor drain will be reduced to allow smooth drainage.

(Embodiment) An embodiment of the roof rainwater drainage structure of the present invention will be described below with reference to FIGS. 1 to 3. FIG. 1 is a perspective view of an essential part of the present invention, FIG. 2 is a perspective view of the same part broken, and FIG. 3 is a rainwater drainage system path diagram.

In the figure, reference numeral 1 is a roof surface including an additional portion such as an extension, and a gutter 2 having a U-shaped cross section is provided along the lower edge 1a of the roof surface 1. The end of the gutter 2 is connected to a vertical gutter 3a provided outdoors, and the vertical gutter 3a is connected to an outdoor drainage channel 4a. On the other hand, the central part of the horizontal gutter 2 is connected to a vertical gutter 3b provided indoors, and the lower end of the vertical gutter 3b is arranged on an indoor floor and is connected to a floor drainage channel 4b continuous to the outside. . Therefore, the rainwater accumulated in the gutter 2 is guided to the vertical gutter 3a provided outdoors and the vertical gutter 3b provided indoors according to the water gradient of the gutter 2, and is drained from the outdoor drainage channel 4a and the floor drainage channel 4b. It

The weir 5 is provided at a desired intermediate height position on the roof surface 1 by a plate member having an L-shaped cross section along a direction substantially orthogonal to the gradient direction of the roof surface 1.
And the auxiliary water collecting gutter 6 is formed in cooperation with the roof surface 1b above the weir 5.

Reference numeral 5a is a support member that supports the weir 5 on the roof surface 1.

Below the auxiliary water collecting gutter 6 and along the auxiliary water collecting gutter 6, the roof surface 1
A drainage pipe 8 having a water gradient that gradually increases the distance from the auxiliary water collecting gutter 6 toward the side end of the drainage pipe 8 is supported by the support member 8a, and the end of the drainage pipe 8 is provided outdoors. It is connected to the vertical gutter 3c and continues to the outdoor drainage channel 4a.

The auxiliary water collecting gutter 6 and the drainage pipe 8 connect the weir 5 and the drainage pipe 8 by an appropriate number of connecting pipes 7.

In the roof rainwater drainage structure configured as described above, the rainwater that has fallen on the roof surface 1b above the weir 5 that constitutes the auxiliary water collecting gutter 6 is accumulated by the auxiliary water collecting gutter 6 and is drained by the connecting pipe 7. It is led to 8, and flows down according to the water gradient of the drainage pipe 8, and is drained from the vertical gutter 3c to the outdoor drainage channel 4a.

Rainwater that has fallen on the roof surface 1c below the weir 5 flows down on the roof surface 1c and is accumulated in the gutter 2. According to the water gradient of the gutter 2, an outdoor vertical gutter 3a and an indoor vertical gutter 3a. The water is distributed to the outdoor drainage channels 4a provided outdoors and the floor drainage channels 4b provided indoors for drainage.

The position of the auxiliary water collecting gutter 6 formed by the weir 5 on the roof surface 1 is
In consideration of the dimensions of the gutter 2, the vertical gutters 3a, 3b, 3c, the floor drainage channel 4b, etc., it can be installed at an appropriate height position, or can be selectively installed on the roof surface of an appropriate place. .

(Effect) Rainwater that has fallen on the roof surface above the weir that forms the auxiliary water collection gutter is accumulated in the auxiliary water collection gutter, led to the outside of the building through the connecting pipe, and fell to the roof surface below the auxiliary water collection gutter. By flowing only rainwater into the gutter, the amount of rainwater flowing down into the gutter is reduced, and by distributing this reduced rainwater to the vertical gutters arranged indoors and outdoors, the flow rate to the floor drain can be reduced.
Without changing the dimensions of the floor drainage channel, it is possible to cope with a large amount of rainfall even if the roof area is expanded due to an extension, etc., and it is possible to prevent indoor overflow, resulting in line operation installed indoors. It is possible to prevent interruptions, damage to equipment, devices, etc. In addition, the auxiliary water collection gutter and drainage pipe can be installed only by working outdoors, and the indoor operation is not interrupted, which is a practical effect.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing an embodiment of a roof rainwater drainage structure of the present invention, FIG. 2 is an overall perspective view of the same part broken, and FIG. 3 is a rainwater drainage system path diagram. 1 …… Roof surface, 1a …… Bottom edge, 2 …… Gutter, 3a, 3b, 3c ……
Vertical gutter, 4a …… outdoor drainage, 4b …… floor drainage, 5 …… weir,
6 ... Auxiliary water collection gutter, 7 ... Connection pipe, 8 ... Drainage pipe

Claims (1)

[Scope of utility model registration request] 1. A floor gutter provided along a lower edge of a sloping roof surface including an additional portion, and rainwater from the gutter is provided indoors through a floor gutter and a floor drainage channel and outdoors. In a roof rainwater drainage structure that distributes and drains to an outdoor drainage channel through a vertical gutter, formed by a weir provided at an intermediate height position of the roof surface along a direction orthogonal to the gradient direction and the roof surface. And the drainage pipe that leads the rainwater to the outside with the slope of the auxiliary water collecting gutter and the slope below the auxiliary water collecting gutter and gradually increasing along the auxiliary water collecting gutter. A roof rainwater drainage structure, comprising: a connecting pipe for connecting rainwater from the auxiliary collecting gutter to the drainage pipe by connecting the auxiliary collecting gutter and the drainage pipe.