CN202425400U - Water-saving structure utilizing rainwater on bridge floor of viaduct bridge to irrigate green space under bridge - Google Patents

Abstract

The utility model discloses a water-saving structure utilizing rainwater on the bridge floor of a viaduct bridge to irrigate green space under the bridge, and belongs to the technical field of water-saving structures. The water-saving structure is characterized in that a reservoir is included, wherein the reservoir is connected with a drain pipe on the viaduct bridge through a pipeline and is also connected with an irrigation pipe through a pipeline, the irrigation pipe is distributed in the green area under the viaduct bridge, and a control valve is arranged on the pipeline between the irrigation pipe and the reservoir. The utility model aims to provide a water-saving structure utilizing rainwater on the bridge floor of a viaduct bridge to irrigate green space under the bridge; and the water-saving structure is simple in structure and convenient in use, and is used for irrigating green space.

Description

A water-saving structure that utilizes the rainwater on the viaduct deck to irrigate the green space under the bridge

technical field

The utility model relates to a water-saving structure, in particular to a water-saving structure which utilizes the rainwater on the deck of a viaduct to irrigate the green space under the bridge.

Background technique

Because the green space under the viaduct is completely or partially covered by the bridge deck, it cannot use natural rainwater and can only rely entirely on artificial irrigation. Therefore, it needs to consume a lot of tap water for irrigation; when there is a heavy rain, the rainwater on the bridge deck of the viaduct is usually collected directly. In the pipe, it flows into the municipal drainage pipe network. When the rainfall is too heavy, the drainage of the municipal pipe network is often insufficient, causing waterlogging disasters in some areas of the city.

Utility model content

The purpose of this utility model is to provide a compact and easy-to-use water-saving structure for irrigating the green space under the viaduct with rainwater on the bridge deck in order to address the above-mentioned deficiencies in the prior art.

The technical scheme of the utility model is realized in the following way: a water-saving structure that utilizes the rainwater on the viaduct bridge deck to irrigate the green space under the bridge, including a water storage tank, which is connected with the drainage pipe pipeline on the viaduct, wherein the storage tank The pool pipeline is connected with irrigation pipes, and the irrigation pipes are distributed in the green area under the viaduct bridge, and a control valve is arranged on the pipeline between the irrigation pipes and the reservoir.

In the above-mentioned water-saving structure that utilizes rainwater on the bridge deck of the viaduct to irrigate the green space under the bridge, the irrigation pipe is laid in the soil 0.2 to 0.4 meters above the ground, and a coarse sand filter layer is arranged on the periphery of the irrigation pipe; There are several irrigation holes distributed on the wall.

In the above-mentioned water-saving structure that utilizes the rainwater on the bridge deck of the viaduct to irrigate the green space under the bridge, a drain pipe is provided in the reservoir, and the water inlet of the drain pipe is located at the upper part of the reservoir near the inner top.

In the above-mentioned water-saving structure that utilizes the rainwater on the bridge deck of the viaduct to irrigate the green space under the bridge, a grit chamber is provided in the reservoir, and the grit chamber is opposite to the water outlet of the drainage pipe.

In the above-mentioned water-saving structure that utilizes the rainwater on the bridge deck of the viaduct to irrigate the green space under the bridge, a sand sinking well is provided at the bottom of the reservoir, and a drainpipe communicating with the outside is provided on the side wall of the sand sinking well.

In the above-mentioned water-saving structure that utilizes the rainwater on the bridge deck of the viaduct to irrigate the green space under the bridge, an inspection port is provided on the reservoir, and a cover plate is provided on the inspection port.

In the above-mentioned water-saving structure that utilizes the rainwater on the bridge deck of the viaduct to irrigate the green space under the bridge, the inner wall of the reservoir is provided with a working ladder for emergency repair.

After the utility model adopts the above-mentioned structure, the rainwater on the bridge surface is collected through the reservoir, and at the same time, the greening area under the bridge surface is irrigated through the irrigation pipe. It solves the problem that the green area under the bridge cannot use natural rainwater and can only completely rely on artificial irrigation, which saves a lot of water resources; at the same time, the reservoir can share the burden of the municipal drainage pipe network during heavy rains and timely discharge water resources. Storage; avoid waterlogging disasters caused by insufficient drainage of municipal drainage pipes, effectively reduce the pressure of municipal flood drainage pipe networks during heavy rains, and reduce the degree of urban waterlogging.

Description of drawings

The utility model will be further described in detail below in conjunction with the embodiments in the accompanying drawings, but it does not constitute any limitation to the utility model.

Fig. 1 is a side sectional schematic view of the utility model;

Fig. 2 is the front sectional schematic view of the utility model;

Fig. 3 is the distribution schematic diagram of irrigation pipe of the present utility model;

Fig. 4 is a structural schematic diagram of the irrigation pipe.

In the figure: reservoir 1, water collection pipe 2, irrigation pipe 3, irrigation hole 3a, control valve 4, coarse sand filter layer 5, drain pipe 6, sand chamber 7, sand well 8, drainage pipe 8a, cover plate 9. Emergency repair work ladder10.

Detailed ways

Referring to Fig. 1 to Fig. 4, a kind of water-saving structure of the present utility model utilizes viaduct deck rainwater to irrigate the green space under the bridge, comprises reservoir 1, and reservoir 1 is connected with water collecting pipe 2 pipelines on the viaduct, The number and capacity of the reservoir 1 are designed according to the specific bridge length and area. For not affecting the landscape, it can be arranged to cover with trees and shrubs greening or to cover with climbing plants such as wall-climbing tigers and the like, with a capacity of 4 cubic meters To about 10 cubic meters, it is too big and unsightly, and may affect the foundation of the viaduct body; the pipeline of the reservoir 1 is connected to the irrigation pipe 3, and the irrigation pipe 3 is made of PVC pipe with a diameter of 20mm, and the irrigation pipe 3 is distributed under the viaduct bridge. In the green area, a control valve 4 is arranged on the pipeline between the irrigation pipe 3 and the reservoir 1 . The irrigation pipes 3 are laid in the soil 0.2 to 0.4 meters away from the ground, and the parallel spacing between the irrigation pipes 3 is 0.8 to 1 meter. A coarse sand filter layer 5 is arranged on the periphery of the irrigation pipes 3; There are a number of irrigation holes 3a distributed on the top, the diameter of the irrigation holes 3a is 2 mm, which makes the irrigation more uniform, and the irrigation holes 3a are located in the middle and lower part of the irrigation pipe 3, which is conducive to dripping water and can minimize the impact of sedimentation in the water pipe on the water outlet effect If there is silting in the water pipe, it can be dredged by controlling the introduction of high-pressure water through the control valve 4; further, a drain pipe 6 is provided in the reservoir 1, and the water inlet of the drain pipe 6 is located at the top of the reservoir 1 near the inner top , the drain pipe 6 can be discharged in time when the water in the reservoir 1 is nearly full; a grit chamber 7 is provided in the reservoir 1, and the grit chamber 7 is opposite to the water outlet of the water collection pipe 2 for At the same time, a settling well 8 is provided at the bottom of the reservoir 1, and a drainpipe 8a communicating with the outside is provided on the side wall of the sinking well 8. The drainpipe 8a is equipped with a valve for cleaning and maintaining the storage tank. Pool 1 is used. An inspection port is provided above the reservoir 1, and a cover plate 9 is provided on the inspection port; a repair work ladder 10 is provided on the inner side wall of the reservoir 1 to facilitate maintenance and cleaning of the reservoir 1.

In specific use, in order to reduce operating costs, drip irrigation is mainly gravity flow, controlled by the control valve 4, and the water content in the greening soil is increased with a very small flow. In addition, to make the green leaves clean, and during the dry season, it is necessary to artificially water the plants at regular intervals. It is conceivable that a reservoir is set under every viaduct column, and hundreds of cubic meters of water can be stored for each kilometer-long viaduct, which saves a large amount of investment in urban greening water.

This principle and method can also be used in residential areas to collect rainwater from the sky through pipes to the storage tank in the overhead floor of the building, after simple filtration, and then through the controllable pipe network to irrigate the green space or replenish water for the landscape water body.

Claims (7)

1. a water saving that utilizes overpass bridge floor rainwater to irrigate greenery patches under the bridge is constructed; Comprise cistern (1); Cistern (1) is connected with collector pipe (2) pipeline on the overpass, it is characterized in that described cistern (1) pipeline is connected with irrigation pipe (3); Irrigation pipe (3) is distributed in the afforested areas under the overpass bridge, on the pipeline between irrigation pipe (3) and the cistern (1), is provided with by-pass valve control (4).

2. a kind of water saving structure that utilizes overpass bridge floor rainwater to irrigate greenery patches under the bridge according to claim 1 is characterized in that, described irrigation pipe (3) is laid in the soil apart from 0.2～0.4 meter on ground, is provided with coarse sand drainage layer (5) in irrigation pipe (3) periphery; On irrigation pipe (3) tube wall, be distributed with some irrigations hole (3a).

3. a kind of water saving structure that utilizes overpass bridge floor rainwater to irrigate greenery patches under the bridge according to claim 1 is characterized in that be provided with tapping pipe (6) in the described cistern (1), the water inlet of tapping pipe (6) is positioned at the nearly inner top in top of cistern (1).

4. a kind of water saving structure that utilizes overpass bridge floor rainwater to irrigate greenery patches under the bridge according to claim 1 is characterized in that be provided with sand basin (7) in the described cistern (1), sand basin (7) is relative with the delivery port of drainpipe (2).

5. a kind of water saving structure that utilizes overpass bridge floor rainwater to irrigate greenery patches under the bridge according to claim 1 is characterized in that described cistern (1) bottom is provided with sand sediment trap (8), on the sidewall of sand sediment trap (8), is provided with and the outside drainpipe (8a) that is connected.

6. a kind of water saving structure that utilizes overpass bridge floor rainwater to irrigate greenery patches under the bridge according to claim 1 is characterized in that described cistern is provided with inspection socket above (1), and inspection socket is provided with cover plate (9).

7. a kind of water saving structure that utilizes overpass bridge floor rainwater to irrigate greenery patches under the bridge according to claim 1 is characterized in that described cistern (1) madial wall is provided with repairing working stand (10).

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