CN202017224U - Distributional automatic rainwater flow abandoning device for roof - Google Patents

Abstract

The utility model discloses a split-type roof rainwater automatic abandonment device, which comprises a box body and a rainwater collection and utilization pipe. The box body is divided into two parts: a rainwater diversion chamber and a rainwater abandonment chamber; A water inlet pipe is installed on the top of the diversion chamber, and an overflow pipe is installed on the side; the outlet of the rainwater diversion chamber is arranged on the partition, and a floating ball matching it is arranged below the outlet of the rainwater diversion chamber. The floating ball is placed in at least three floating ball fixing rods, and the floating ball fixing rods are fixed between the partition plate and the bottom plate of the rainwater disposal chamber; the rainwater collection and utilization pipe passes through the rainwater The waste flow chamber enters the rainwater diversion chamber, and the rainwater collection and utilization pipe is provided with a filter cloth; the bottom plate of the rainwater waste flow chamber is connected with an initial rainwater drainage pipe, and a filter screen is arranged in the initial rainwater drainage pipe. The utility model has reasonable and compact space layout, convenient operation and management, and low cost.

Description

Split-type roof rainwater automatic discarding device

technical field

The utility model belongs to municipal drainage facilities, in particular to a diversion type roof rainwater automatic discarding device.

Background technique

Roof rainwater has the advantages of less pollution and stable water quality, and with the continuous acceleration of urbanization, more high-rise buildings will be built. Therefore, the collection and utilization of roof rainwater has become an effective measure for urban water conservation. Studies have shown that after the rainfall begins, the roof rainwater forms runoff, which washes away the particulate pollutants deposited on the roof in the air. At this time, the rainwater runoff is more polluted and the water quality is poor. When the rainfall reaches 2mm-3mm, the roof The water quality of stormwater runoff will be significantly improved and remain stable. Therefore, when collecting roof rainwater, the initial rainwater is discarded, and then the later rainwater is collected to achieve a better collection purpose. At present, there are often two problems with the initial rainwater disposal device. One is that the size of the rainwater disposal device is too large. As the utility model patent published on September 23, 2009, the application number is 200820215494.5, which discloses a device for abandoning flow of initial rainwater, which device includes a flow abandoning pond, a diversion well and a flow abandoning device. When in use, the rainwater first enters the diversion well for preliminary filtration, and then flows into the diversion pool through the jet diverter. When the water volume in the diversion pool reaches the initial rainwater volume, the jet diverter is closed, and the rainwater in the middle and late stages diverts into the diversion well. storage pool. Because the water diversion well of the device, the jettison pond and the storage pond are all constructed separately, the device occupies a large area, and the buried construction increases the amount of earth excavation and increases the project cost. The second is that the operation management is relatively complicated. For example, if electronic equipment is used to control the opening and closing of the gate valve, accidents often occur in outdoor rainy days, resulting in equipment failure and inconvenient maintenance. For example, the invention patent with the application number 201010213032.1 published on November 17, 2010 discloses a vertical roof rainwater automatic initial discharge device, which is mainly composed of a rectifying plate, a separation chamber, a waste flow inlet channel, and a temporary storage of the waste flow. Tank, waste water drainage tank, floating ball device, solenoid valve, liquid level sensor, electric control box, rainwater collection pipe, etc. When in use, the initial rainwater flows into the temporary storage tank for the abandoned flow. When the predetermined water level is reached, the floating ball will close the inlet of the water inlet pipe, and then all the rainwater will enter the collection pipe. At the same time, the liquid level sensor will transmit the water level signal according to the set liquid level height. To the electric control box, after a preset time interval, the electric control box sends a signal to the solenoid valve, and the solenoid valve opens to discharge the initial rainwater. The device uses electronic equipment such as liquid level sensors, electric control boxes, and solenoid valves. If no protection measures are taken, the equipment will be easily damaged and malfunction in rainy days. When the device is buried underground, the solenoid valve is at the bottom of the device, so it is difficult to find fault condition and is not easy to repair.

Utility model content

In order to solve the technical problems in the known technology, the utility model provides a split-type roof rainwater automatic discarding device with small volume and convenient operation and management.

The technical scheme adopted by the utility model to solve the technical problems existing in the known technology is: a split-type roof rainwater automatic discarding device, which is characterized in that it includes a box body and a rainwater collection and utilization pipe, and the box body is composed of a partition The rainwater diversion chamber is divided into upper and lower parts of the rainwater diversion chamber and the rainwater abandonment chamber; the top of the rainwater diversion chamber is equipped with an inlet pipe, and the side is equipped with an overflow pipe; Below the outlet of the rainwater diversion chamber, there is a floating ball adapted to it, and the floating ball is placed in at least three floating ball fixing rods, and the floating ball fixing rods are fixedly connected to the partition board and the rainwater drain. between the bottom plates of the flow chamber; the rainwater collection and utilization pipe passes through the rainwater disposal chamber and enters the rainwater diversion chamber, and the rainwater collection and utilization pipe is provided with a filter cloth; the bottom plate of the rainwater disposal chamber is connected to There is an initial rainwater drainage pipe, and a filter screen is arranged in the initial rainwater drainage pipe.

A detachable wedge-shaped bottom plate is installed on the bottom plate of the rainwater abandonment chamber, and the height of the wedge-shaped bottom plate gradually increases from the side close to the initial rainwater drainage pipe.

The water inlet end of the rainwater collection and utilization pipe is a slope that gradually decreases from the end of the rainwater collection and utilization pipe in the section including the centerline of the rainwater collection and utilization pipe.

The bottom surface of the rainwater diversion chamber is a slope, and the slope gradually rises from the outlet of the rainwater diversion chamber.

Two outlets are installed at the end of the initial rainwater drainage pipe, one of which is a normally open outlet, and the other outlet is provided with a regulating valve.

The advantages and positive effects of the utility model are: the box body is divided into two parts, the upper and lower parts of the rainwater diversion chamber and the rainwater abandonment chamber by the partition plate, which can effectively separate the initial rainwater from the later rainwater, and avoid the late stage of collection. The rainwater is polluted by the initial rainwater, the space layout is reasonable and compact, the structure is simple, and the cost is low; the combination of the floating ball device, the normally open drain port and the drain port with a regulating valve is adopted, and there is no need to manually discharge the initial rainwater, and the degree of automation is high. No need for electricity, safe, energy-saving, convenient operation and management, and low cost.

Description of drawings

Fig. 1 is the elevation schematic view of the utility model;

Fig. 2 is the A-A sectional view of Fig. 1;

Fig. 3 is the B-B sectional view of Fig. 1;

Fig. 4 is the C-C sectional view of Fig. 1;

Fig. 5 is the working principle figure of the utility model rainfall initial stage;

Fig. 6 is the working principle diagram of the utility model in the middle period of rainfall;

Fig. 7 is a working principle diagram of the utility model during and after rainfall.

In the figure: 1. water inlet pipe, 2. rainwater diversion chamber, 3. rainwater collection and utilization pipe, 4. inspection port, 5. overflow pipe, 6. outlet of rainwater diversion chamber, 7. floating ball fixing rod, 8. Float, 9, wedge-shaped bottom plate, 10, regulating valve, 11, normally open drain, 12, filter screen, 13, initial rainwater drainage pipe, 14, rainwater disposal chamber, 15, support rod, 16, partition, 17 , box body, 18, pipe collar, 19, filter cloth.

Detailed ways

In order to further understand the invention content, characteristics and effects of the present utility model, the following examples are given, and detailed descriptions are as follows in conjunction with the accompanying drawings:

Please refer to Fig. 1-Fig. 4, a diversion type roof rainwater automatic discarding device of the present invention includes a box body 17 and a rainwater collection and utilization pipe 3, and the box body 17 is divided into a rainwater diversion chamber 2 and a rainwater disposal chamber by a partition The upper and lower parts of the flow chamber 14; the top of the rainwater diversion chamber 2 is equipped with a water inlet pipe 1, and the side is equipped with an overflow pipe 5; There is a floating ball 8 adapted to it, the floating ball 8 is placed in at least three floating ball fixing rods 7, after the floating ball 8 floats, it can just block the outlet 6 of the rainwater diversion chamber, and the floating ball fixing rod 7 is fixed on the Between the clapboard 16 and the bottom plate of the rainwater disposal chamber; the rainwater collection and utilization pipe 3 passes through the rainwater disposal chamber 14 and enters the rainwater diversion chamber 2, and the rainwater collection and utilization pipe 3 is provided with a filter cloth 19; the rainwater disposal chamber 14 An initial rainwater drain pipe 13 is connected on the base plate of the bottom plate, and a filter screen 12 is arranged in the initial rainwater drain pipe 13 .

The casing 17 is made of hard plastic, which should ensure airtightness and firmness. Partition plate 16 adopts hard plastic plate, is fixed in box body 17, and is arranged obliquely, makes the bottom surface of rainwater diversion chamber form the slope that rises gradually from the outlet of rainwater diversion chamber. The inclination angle is about 10°～20°. The rainwater collection and utilization pipe 3 can be a plastic pipe, and the water inlet end of the rainwater collection and utilization pipe is a slope that gradually decreases from near the water inlet pipe end in the section including the center line of the rainwater collection and utilization pipe, and the inclination angle is about 15° to 30°. In this embodiment, the floating ball 8 is guided by four floating ball fixing rods 7 . Initial stage rainwater drainage pipe 13 can adopt two plastic pipes, and pipe collar 18 connects two plastic pipes, and below pipe collar 18, filter screen 12 is provided in the pipe, and two outlets are installed at initial stage rainwater drainage pipe 13 ends, one is Normally open drain port 11, another drain port is then equipped with drain regulating valve 10, can control the rainwater amount of regulating discharge. Overflow pipe 5 adopts plastic pipe. For the convenience of cleaning deposits in the future, a detachable wedge-shaped bottom plate 9 is installed on the bottom plate of the rainwater abandonment chamber, and the height of the wedge-shaped bottom plate 9 gradually increases from the side near the initial rainwater drain pipe. For the convenience of maintenance, a maintenance port 4 can be set on the top of the rainwater diversion chamber 2 . In order to make the structure more stable, a support rod 15 can be added between the partition plate 16 and the side wall of the box body.

Working principle of the utility model:

Please refer to Figures 5 to 7. When the rainfall begins, the rainwater enters the rainwater diversion chamber 2 from the water inlet pipe 1, and the initial rainwater flows along the partition 16 to the outlet 6 of the rainwater diversion chamber, and falls into the rainwater abandonment chamber 14, and the rainwater is discarded. The water level in the flow chamber 14 begins to rise, and the floating ball 8 will rise together with the water level under the effect of buoyancy, and the water level in the rainwater abandonment flow chamber 14 will continue to rise. When the outlet 6 is blocked, the rainwater will be stored in the diversion chamber 2, and the water level in the rainwater diversion chamber 2 will continue to rise. When the water level exceeds the lower port of the rainwater collection and utilization pipe 3, the rainwater will start to flow into the rainwater collection and utilization pipe. within 3. The initial rainwater in the rainwater abandonment flow chamber 14 can be discharged by the normally open drain 11 on the initial rainwater drain pipe 13, and the normally open drain 11 caliber is smaller to ensure that the rainwater flows out slowly. When the rainfall stopped, the rainwater in the rainwater abandonment flow chamber 14 would be gradually removed, and the float would fall back on the wedge-shaped bottom plate 9, and the device would return to the non-rainfall waiting state.

Although the preferred embodiment of the utility model has been described above in conjunction with the accompanying drawings, the utility model is not limited to the above-mentioned specific implementation, and the above-mentioned specific implementation is only illustrative and not restrictive. Under the enlightenment of the utility model, those skilled in the art can also make many forms without departing from the purpose of the utility model and the protection scope of the claims, and these all belong to the protection scope of the utility model.

Claims (5)

1. a shunting rain water on roof automatic flow abandoning apparatus is characterized in that, comprises casing and rainwater catchment system pipe, and described casing is divided into rainwater diversion chamber and rain water drainage chamber two parts up and down by dividing plate; The top of described rainwater diversion chamber is equipped with water inlet pipe, and sidepiece is equipped with bleed off pipe; Described dividing plate is provided with the outlet of rainwater diversion chamber, the below of described rainwater diversion chamber outlet is provided with the ball float adaptive with it, described ball float places among three ball float fixed bars at least, and described ball float fixed bar is fixed between the base plate of described dividing plate and described rain water drainage chamber; Described rainwater catchment system pipe passes described rain water drainage chamber and enters in the described rainwater diversion chamber, is provided with filter cloth in the described rainwater catchment system pipe; Be connected with the early-stage rainwater gutter on the base plate of described rain water drainage chamber, be provided with screen pack in the described early-stage rainwater gutter.

2. shunting rain water on roof automatic flow abandoning apparatus according to claim 1 is characterized in that, on the base plate of described rain water drainage chamber detachable wedge-shaped floor is installed, and the height of described wedge-shaped floor is from raising gradually near early-stage rainwater gutter side.

3. shunting rain water on roof automatic flow abandoning apparatus according to claim 1 is characterized in that, the inlet end of described rainwater catchment system pipe is the inclined-plane for reducing gradually from close water inlet pipe end in the section that comprises described rainwater catchment system tube hub line.

4. shunting rain water on roof automatic flow abandoning apparatus according to claim 1 is characterized in that, the bottom surface of described rainwater diversion chamber is the inclined-plane, and described inclined-plane raises gradually from rainwater diversion chamber exit.

5. shunting rain water on roof automatic flow abandoning apparatus according to claim 1 is characterized in that, described early-stage rainwater gutter end is equipped with two outfall, and a described delivery port is the mouth of a river that often begins to rehearse, and another described outfall is provided with control valve.

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