JP2003138638A - Rainwater introducing valve device for side ditch - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rainwater introducing valve device for a side ditch, in which a valve for blocking a malodor and preventing the emergence of mosquitoes, etc., is provided below a sewage cover in a water collecting part of the side ditch of a road, etc. SOLUTION: A hopper 6, which receives rainwater flowing down through a rainwater ort 2a of the sewage cover 2, is provided on the lower side of the sewage cover 2 which is mounted on an upper opening of the water collecting part (sewage basin) 1 of the side ditch of the road R. Ordinarily, a lower end discharge opening 6c of the hopper 6 is closed with a rotary valve body 8a which is urged by a weight 8c, so that the malodor can be blocked and so that the emergence of the mosquitoes can be prevented, while at a rainfall, the valve body 8a is pushed open downward by the rainwater, so as to permit the inflow of the rainwater into a sewer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a valve device provided in an upper part of a rainwater flow path leading to a sewer main in a water collecting part provided in a gutter of a road or the like.

[0002]

2. Description of the Related Art Generally, a gutter of a road R shown in FIG.
A water collecting part (sewage mass) 1 into which rain water or the like can be introduced is provided at required intervals, and a rain water port 2a is provided at an upper opening of the water collecting part 1.
An attached drain cover 2 is provided. Then, rainwater or the like is introduced from the lower part of the water collecting section 1 into the sewer main 4 through the inclined conduit 3.

By the way, when soil or foreign matter dropped on the road R falls through the rainwater outlet 2a of the sewer lid 2 at the bottom of the water collecting section 1, it prevents them from entering the sewer main 4. Therefore, the reservoir 5 is formed, and if rainwater is stored in the reservoir 5, there is a problem that it becomes a source of generation of mosquitoes and the like. In addition, there is a problem that the odor rises from the sewer main 4 through the inclined conduit 3 when the amount of rainwater is small, which causes a bad odor on the ground.

Therefore, conventionally, the inclined conduit 3 is used to prevent a bad odor.
Although an automatic opening / closing lid is provided on the top of the,
It is not possible to prevent the occurrence of mosquitoes in the reservoir 5 in the summer.

[0005]

DISCLOSURE OF THE INVENTION The present invention is for a gutter provided with a valve for blocking a bad odor and preventing the generation of mosquitoes, etc., below the drain cover in the water collecting part of the gutter of a road or the like. An object is to provide a rainwater introduction valve device.

[0006]

In order to solve the above-mentioned problems, a rainwater introduction valve device for a gutter of the present invention is provided below a drain cover with a rainwater outlet provided at an upper opening of a water collecting part of the gutter.
It is equipped with a hopper for guiding the rainwater flowing down from the rainwater outlet of the sewage lid to the sewage main, and a valve for opening and closing the lower end discharge port of the hopper, and the valve body of the valve is the edge of the lower end discharge port. An urging member, one end of which is rotatably supported by an outer portion of the hopper so as to rotate and come into contact with the partial valve seat from below, and drives the valve body in a direction in which the valve body is pressed against the edge valve seat, It is characterized in that it is attached to the base end of the valve body.

Further, in the rainwater introduction valve device for a gutter of the present invention, the hopper is composed of a hopper upper portion having an upwardly inclined side wall, and a hopper tubular portion having an upper end edge connected to a lower end edge of the hopper upper portion. The upper edge of the upper portion of the hopper is engaged with the edge portion of the upper opening of the water collecting portion, and the base end portion of the valve element is supported by the bracket attached to the outer portion of the hopper tubular portion. The weight is rotatably supported via the arm and is attached to the base end of the valve body via an arm.

Further, in the rainwater introduction valve device for a gutter of the present invention, the weight is formed in a ring shape and is inserted into the arm, and a pair of nuts screwed into a bolt portion formed in the arm is provided with the weight. Is clamped and fixed so that its position can be adjusted, and a weight contact cushioning means for buffering the weight that rises when the valve body is opened is provided.

In the above-described gutter rainwater introduction valve device of the present invention, when rainwater flows into the gutter at the time of rainfall and flows down through the rainwater port in the drain lid of the water collecting portion to the hopper below the drain, the above-mentioned attachment is always performed. The valve body of the valve, which is closed by being biased by the biasing member, is rotated so as to be pushed downward,
The rainwater flows toward the sewer main.

When the inflow of rainwater to the water collecting portion is stopped, the valve body is automatically rotated by the biasing member toward the edge valve seat at the lower end discharge port of the hopper. The lower end discharge port is blocked by this. Therefore, the odor from the main sewer is blocked, and the spawning of mosquitoes etc. in the pool water at the lower part of the water collecting section is prevented.

Further, the hopper is composed of a hopper upper portion having an upwardly inclined side wall and a hopper tubular portion having an upper end edge connected to a lower end edge of the hopper upper portion. When the hopper is configured to engage with the upper opening of the water collecting portion, the hopper can be appropriately formed and the hopper can be easily attached to the water collecting portion.

The base end portion of the valve body is rotatably supported by a bracket attached to the outer side portion of the hopper tubular portion via a spindle, and a weight serving as an urging member is attached to the valve body. When attached to the base end via an arm, the weight is normally urged so that the valve element comes into pressure contact with the edge valve seat, while on the other hand, when the rainwater flows down, the weight urges the valve body. Against this, the action of pushing the valve body downward is properly performed.

Further, when the ring-shaped weight is inserted into the arm and a pair of nuts screwed into the bolt portion of the arm clamps and fixes the weight, the weight is fixed. The position adjustment along the arm can be easily performed, and thus the biasing force of the weight on the valve body can be easily adjusted.

Further, if the weight contact cushioning means for cushioning the weight that rises when the valve body is opened is provided, noise generation can be appropriately prevented.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION A gutter rainwater introduction valve device as an embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an explanatory view schematically showing a cross section thereof, and FIG. It is a bottom view seen in the direction of arrow A.

As shown in FIGS. 1 and 2, the rainwater W is sewer main under the sewer lid 2 with the rainwater outlet 2a provided at the upper opening of the water collecting portion (sewage mass) 1 in the gutter of the road R. (Fig. 3
A hopper 6 for guiding the upper part of the hopper 6 to the upper part 6a having an inclined side wall that opens upward, and a lower end edge of the upper part 6a of the same hopper connected by a flange joint. And a hopper tubular portion 6b as a hollow cylinder or a rectangular tube. And
The upper edge of the hopper upper portion 6a is engaged with the edge portion of the upper opening of the water collecting portion 1.

A valve 8 for opening and closing a lower end discharge port 6c formed as an inclined opening is provided at the lower end of the hopper 6, and a valve body 8a of the valve 8 has an edge portion as an edge portion of the lower end discharge port 6c. One end of the hopper 6 is rotatably supported by a support shaft 9 on the outside of the hopper 6 so that the valve seat 6d can be rotated and brought into contact with the valve seat 6d. A ring-shaped weight (biasing member) 8c mounted via an arm 8b is provided at the base end portion of the valve body 8a so that the valve body 8a can be biased.

The support shaft 9 is mounted on a bracket 10 attached to the outside of the hopper tubular portion 6b, and the ring-shaped weight 8c inserted through the arm 8b is an arm 8b.
A pair of nuts 11 that are screwed into the bolts 8d formed on the
It is clamped and fixed by 12 so that its position can be adjusted.

Furthermore, when the valve body 8a is suddenly opened by a large amount of rainwater falling from above, the weight contact cushioning means for buffer-supporting the weight 8c that rises until the full opening angle α is reached. A rubber block 13 is provided outside the hopper upper portion 6a via a support base 14. Instead of this rubber block 13, a rubber ring 13 is provided on the outer circumference of the weight 8c.
You may make it wind around a.

Further, a minute cutout 7 for draining water is formed at the lowermost end of the edge portion of the lower end discharge port 6c as an inclined opening. In addition, in the present embodiment, the lower end discharge port 6c is formed as an inclined opening, but it may be formed as a horizontal opening. In that case, the cutouts 7 are arranged in a plurality of places.

In the above-described gutter rainwater introduction valve device of the present embodiment, rainwater W flows into the gutter during rainfall, and flows down to the hopper 6 below through the rainwater outlet 2a in the sewer lid 2 of the water collecting portion 1. Then, the valve body 8a of the valve 8 which is normally urged upward by the weight 8c and closed is rotated so as to be pushed downward, and the rainwater W flows toward the sewer main.

When the rainwater stops flowing into the water collecting portion 1, the valve body 8a is automatically moved to the edge valve seat 6d at the lower end discharge port 6c of the hopper 6 by the weight 8c as an urging member. The lower end discharge port 6c is blocked by the urging so that the lower end discharge port 6c is closed. Therefore, the odor from the main sewer is blocked, and the spawning of mosquitoes etc. in the accumulated water in the lower part of the water collecting section 1 is prevented.

Further, the hopper 6 is composed of a hopper upper portion 6a having an upwardly inclined side wall and a hopper cylindrical portion 6b having an upper end edge connected to a lower end edge of the hopper upper portion 6a. Since the edge is configured to engage with the upper opening of the water collecting portion 1, the hopper 6 can be appropriately formed and the hopper 6 can be easily attached to the water collecting portion 1. .

The base end of the valve body 8a is rotatably supported by a bracket 10 attached to the outer side of the hopper tubular portion 6b via a support shaft 9, and a weight 8c serving as a biasing member.
Is attached to the base end of the valve body 8a via the arm 8b, so that the weight 8c normally urges the valve body 8a to press against the edge valve seat 6d. The action of pushing the valve body 8a downward against the urging force of the weight 8c is properly performed.

A ring-shaped weight 8c is inserted into the arm 8b, and a pair of nuts 11 and 12 screwed into a bolt portion 8d of the arm 8b sandwich and fix the weight 8c. Therefore, the position of the weight 8c along the arm 8b can be easily adjusted, and thus the biasing force of the weight 8c on the valve body 8a can be easily adjusted.

Further, there is provided a weight contact cushioning means as a rubber block 13 or a rubber ring 13a for buffer-supporting the rising weight 8c when the valve body 8a tilts to the fully open angle α and is opened. Therefore, the generation of noise can be appropriately prevented.

Instead of the weight 8c, a spring as an urging member may be attached around the support shaft 9 to urge the valve body 8a in the closing direction. Also,
As a safety valve to prevent the sewage that flows back from the sewage main pipe in the event of heavy rain from pushing up the device from below, a check valve that can be opened only upward in the wall of the hopper upper part 6a in response to water pressure from below. May be provided.

Further, in the above-described embodiment, the drain cover 2 made of concrete is used, but a metal grid member may be used as the drain cover, in which case the grid hole serves as a rainwater spout. .

[0029]

As described in detail above, according to the rainwater introduction valve device for a gutter of the present invention, the following effects can be obtained. (1) When rainwater flows into the gutter at the time of rain and flows down to the hopper below it through the rainwater opening in the drain cover of the water collecting part, the valve body of the valve that is normally biased by the biasing member and closed Rotate to open downwards, and rainwater flows toward the sewer main. Then, when the inflow of rainwater to the water collecting portion is stopped, the valve element is automatically urged by the urging member to rotate toward the edge valve seat at the lower end discharge port of the hopper, As a result, the lower end discharge port is closed. Therefore, the odor from the main sewer is blocked, and the spawning of mosquitoes etc. in the pool water at the lower part of the water collecting section is prevented. (2) The hopper is composed of a hopper upper portion having an upwardly inclined side wall and a hopper tubular portion whose upper end edge is connected to the lower end edge of the hopper upper portion, and the upper edge of the hopper upper portion is the When configured to engage the upper opening of the water section, the hopper is properly formed and
The hopper can be easily attached to the water collecting section. The base end portion of the valve body is rotatably supported by a bracket attached to the outer side portion of the hopper tubular portion via a support shaft, and a weight serving as an urging member serves as a base end portion of the valve body. , The valve body is normally urged by the weight so that the valve body is pressed against the edge valve seat, while the rainwater flows down against the urging force of the weight. The action of pushing the valve element downward can be accurately performed. (3) When the ring-shaped weight is inserted into the arm and a pair of nuts screwed to the bolt portion of the arm are configured to clamp and fix the weight, the weight of the weight is The position adjustment along the arm can be easily performed, and thus the biasing force of the weight on the valve body can be easily adjusted. (4) When the weight contact cushioning means for cushioning the weight that rises when the valve body is opened is provided, noise generation can be appropriately prevented.

[Brief description of drawings]

FIG. 1 is an explanatory view schematically showing a cross section of a gutter rainwater introduction valve device as an embodiment of the present invention.

FIG. 2 is a bottom view taken along the line AA of FIG.

FIG. 3 is an explanatory diagram of a rainwater flow path from a gutter of a road to a sewer main.

[Explanation of symbols]

1 water catchment 2 drain cover 2a Rainwater spout 3 inclined conduit 4 Sewage main 5 pool 6 hopper 6a upper part of hopper 6b Hopper tubular part 6c Bottom discharge port 6d edge valve seat 7 notches 8 valves 8a valve seat 8b arm 8c Weight (biasing member) 8d bolt part 9 spindles 10 bracket 11, 12 nuts 13 rubber block 13a rubber ring 14 Support R road W rainwater α Fully open angle

Claims (3)

[Claims] 1. A hopper for guiding rainwater flowing down from the rainwater outlet of the drainage lid to a sewer main is provided below the drainage lid with a rainwater outlet provided at an upper opening of the water collecting portion of the gutter. A valve for opening and closing the lower end discharge port of the hopper is provided, and a valve body of the valve is pivotally supported at one end on the outer side of the hopper so as to rotate and contact the edge valve seat of the lower end discharge port from below. And a biasing member for driving the valve body in a direction in which the valve body is pressed against the edge valve seat is attached to a base end portion of the valve body. . 2. The hopper is composed of a hopper upper portion having an upwardly inclined side wall and a hopper tubular portion having an upper end edge connected to a lower edge of the hopper upper portion, and an upper edge of the hopper upper portion. Engages with an edge portion of the upper opening of the water collecting portion, and a base end portion of the valve element is rotatably supported by a bracket attached to an outer portion of the hopper tubular portion via a support shaft. The gutter rainwater introduction valve device according to claim 1, wherein a weight as the urging member is attached to a base end portion of the valve body via an arm. 3. The weight is formed in a ring shape and is inserted into the arm, and a pair of nuts screwed into a bolt portion formed on the arm clamps and fixes the weight so that the weight can be adjusted. The rainwater introduction valve device for a gutter according to claim 1 or 2, further comprising a weight contact cushioning means for cushioningly supporting the weight that rises when the valve body is opened.