CN209556089U - Gutter inlet for intercepting initial rainwater based on pulleys and buoy - Google Patents

Abstract

The utility model relates to a rainwater inlet for intercepting initial rainwater based on a pulley and a buoy. The rainwater inlet for intercepting initial rainwater based on a pulley and a buoy comprises a rainwater well, a water inlet grate covering the upper port of the rainwater well, and a rainwater pipe and a sewage pipe opened near the lower end of the rainwater well. A water collecting box is fixedly installed on the inner surface of the rainwater well, and a water inlet hole and a water outlet hole are respectively opened on the upper and lower outer surfaces of the water collecting box. A buoy that can float up and down with the water level is arranged inside the water collecting box; a second cover plate and a first cover plate that can rotate around an axis are movably installed on the ports of the rainwater pipe and the sewage pipe near the rainwater well; the rainwater inlet for intercepting initial rainwater based on a pulley and a buoy has a simple structure, low manufacturing cost, safe and reliable operation, no need for electronic components and precision control facilities, and all rely on hydraulic power to complete the opening and closing of automatic control facilities, and the operation, management and maintenance are relatively simple and convenient.

Description

A gully for intercepting initial rainwater based on pulleys and buoys

technical field

The utility model belongs to the technical field of urban drainage facilities, in particular to a rainwater outlet for intercepting initial rainwater based on pulleys and buoys.

Background technique

The function of the gully is to collect ground rainwater during rainfall, and transport the rainwater to the rainwater pipeline system through the water inlet grate and connecting pipes, so as to avoid the accumulation of rainwater on the road surface and affect the traffic and residents' activities. For the diversion system drainage pipeline system, rainwater pipeline system and The sewer systems are separate and there is no connection between the two.

When precipitation occurs, due to various reasons such as human activities, dustfall, vehicle driving, and lack of sanitation facilities, certain pollutants will accumulate on the ground, and these pollutants will enter the drainage pipes with the rainfall, resulting in certain pollution. In addition, sewage (swill) from roadside dining is poured from rainwater outlets, irregular car washes, garbage spills, open-air vegetable markets, firefighting, traffic accidents and other reasons will cause pollutants to enter rainwater pipes. It is called the initial rainwater, which is easy to cause serious damage to the environment; the measures taken by people at present are to set up interception facilities (interceptor wells) at a certain position in the rainwater pipeline system to intercept the initial rainwater to the storage tank, and use sedimentation, cyclone separation or The initial rainwater is transported to the sewage treatment plant for treatment. However, for the rainwater drainage pipeline system, due to the difference in the distance from the interception well, the arrival time of rainwater varies greatly: the place near the interception well, the initial rainwater reaches the interception soon Wells; and in places far away, when the initial rainwater reaches the interception well, the initial rainwater nearby has already passed, and it is no longer the initial rainwater that enters the interception well. In order to obtain a better collection effect, it is often necessary to set up a large number of interception wells, which will cause high costs and is not conducive to popularization and use.

Utility model content

The purpose of this utility model is just to provide a kind of simple in structure, rationally designed gullies based on pulley and buoy to catch initial rainwater in order to solve the above problems.

The utility model realizes above-mentioned purpose through following technical scheme:

A rainwater outlet for intercepting initial rainwater based on a pulley and a buoy, comprising a rainwater well, a water inlet grate covering the upper port of the rainwater well, and a rainwater pipe and a sewage pipe set near the lower end of the rainwater well. The inner surface of the rainwater well is fixed A water collection box is installed, and the outer surface of the upper and lower ends of the water collection box is respectively provided with a water inlet hole and a water outlet hole, and the inside of the water collection box is provided with a buoy that can float up and down with the water level;

The ports of the rainwater pipeline and the sewage pipeline close to the rainwater well are respectively equipped with a No. 2 cover plate and a No. 1 cover plate that can rotate around the axis;

The lower end of the buoy is fixedly connected with a stay rope, and the stay rope passes through the water outlet hole and connects with the outer surface of the No. 2 cover plate and the outer surface of the No. 1 cover plate in turn.

As a further optimization scheme of the present utility model, a water inlet tray is provided above the water inlet hole at the upper end of the water collection tank, a filter screen is arranged on the upper end surface of the water inlet tray, and a Soft casing.

As a further optimization scheme of the utility model, the diameter of the water inlet hole is three times the diameter of the water outlet hole, and the two can satisfy the requirement of filling the water collection tank within a specified time.

As a further optimization solution of the present utility model, a pulley is arranged between the No. 1 cover plate, the No. 2 cover plate and the buoy.

As a further optimization scheme of the present utility model, a No. 1 pulley is arranged below the water collecting tank, and the stay rope is fixed to the outer surface of the No. 2 cover plate by means of the No. 1 pulley to change direction. A No. 2 pulley is arranged between the plates, and the stay rope is connected to the No. 1 cover plate and the No. 2 cover plate by means of the No. 2 pulley.

As a further optimization solution of the present invention, the mass of water corresponding to the effective volume of the buoy is greater than the mass of the No. 2 cover plate, and the mass of the No. 2 cover plate is greater than the mass of the No. 1 cover plate.

As a further optimization solution of the utility model, the maximum rising distance of the buoy in the tank is not less than 1.30d, where d is the diameter of the sewage pipe.

As a further optimization scheme of the present invention, the diameter of the rainwater pipe is the same as that of the sewage pipe, and the top elevation of the sewage pipe is 100-200mm lower than that of the rainwater pipe.

As a further optimization scheme of the present invention, the rotation shafts of the No. 1 cover plate and the No. 2 cover plate are arranged on the top of the corresponding pipe wall, and the upward direction is open, and the downward direction is closed.

As a further optimization scheme of the utility model, the rotation shafts of the No. 1 cover plate and the No. 2 cover plate are arranged at the bottom of the corresponding pipe wall, and the No. 1 cover plate and the No. 2 cover plate are lifted upward to close, and Falling means opening, and the buoy is firstly connected to the No. 1 cover plate through the stay rope, and then connected to the No. 2 cover plate.

The beneficial effects of the utility model are:

1) The utility model sets interception measures in the rainwater wellhead, collects and transports the rainwater into the sewage pipeline system within a certain period of time at the beginning of the rainfall; and transports the collected rainwater into the rainwater pipeline system in the later period of the rainfall. During the non-rainfall period, if there is accidental sewage discharge, such as firefighting wastewater, swill pouring, road dust and sprinkler, etc., the sewage entering the stormwater outlet will be collected into the sewage pipe, thereby greatly improving the pollutant interception effect of the stormwater outlet. Moreover, each gully only collects the initial rainfall on the road surface, and there will be no mixing of the initial rainwater and the later rainwater in the pipeline, ensuring that the early highly polluted rainwater is collected, so the initial rainwater can be collected efficiently;

2) The utility model is provided with two connecting pipelines, one leading to the rainwater pipeline system (being the rainwater pipeline), and the other leading to the sewage pipeline system (being the sewage pipeline). The elevation of the sewage pipe is low, and the elevation of the rainwater pipe is relatively high. The elevation of the pipe top of the sewage pipe is slightly lower than the elevation of the bottom of the rainwater pipe. Sprinkle water on the road, etc.), the water enters the sewage pipe;

3) In this utility model, when the rainfall occurs for a certain period of time (initial rainwater interception is controlled according to time, not according to water level), the buoyancy of the buoy will drive the rainwater pipe inlet cover to open, and at the same time, the sewage pipe cover will be closed. All the rainwater in the later period is transported into the rainwater pipe.

4) The utility model is simple in structure, low in manufacturing cost, safe and reliable in operation, does not need electronic components and precision control facilities, and all rely on hydraulic power to complete the opening and closing of automatic control facilities. The operation, management and maintenance are relatively simple and convenient, and are convenient for popularization and use.

Description of drawings

Fig. 1 is the overall structure schematic diagram of two pipelines different sides of the present utility model;

Fig. 2 is a structural schematic diagram of two pipelines on the same side of the utility model.

In the figure: 1. Rainwater well; 2. Rainwater pipe; 3. Sewage pipe; 4. No. 1 cover plate; 5. No. 2 cover plate; 6. Pull rope; Filter screen; 10, buoy; 11, water inlet grate.

Detailed ways

The application will be described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific embodiments are only used to further illustrate the application, and cannot be interpreted as limiting the protection scope of the application. The above application content makes some non-essential improvements and adjustments to this application.

Example 1

As shown in Figure 1, a rainwater outlet based on pulleys and buoys to intercept initial rainwater includes a rainwater well 1, a water inlet grate 11 covering the upper port of the rainwater well 1, and a rainwater pipeline 2 set at the lower end of the rainwater well 1 With the sewage pipeline 3 and the inner surface of the rainwater well 1, a water collection box 7 is fixedly installed. The outer surface of the upper and lower ends of the water collection box 7 is provided with a water inlet and a water outlet respectively. The inside of the water collection box 7 is provided with a buoy that can float up and down with the water level. 10;

The ports of the rainwater pipe 2 and the sewage pipe 3 near the rainwater well 1 are respectively equipped with a No. 2 cover plate 5 and a No. 1 cover plate 4 that can rotate around the axis;

The lower end of the buoy 10 is fixedly connected with a stay rope 6, and the stay rope 6 passes through the water outlet hole and is fixedly connected with the outer surface of the No. 10 Pull and lift the No. 2 cover 5 directly by the pulley. The buoyancy of the buoy 10 must be greater than the sum of the gravitational moment and the hydrostatic pressure moment of the No. 2 cover 5, and friction must be overcome. Therefore, the volume of the buoy 10 needs to be determined through calculation.

A water inlet tray 8 is arranged above the water inlet hole at the upper end of the water collection box 7, and the water inlet tray 8 is a water collecting funnel to ensure that the water inlet capacity of the water inlet hole is not affected by the intensity of rainfall. There is a filter screen 9 to effectively prevent debris from entering the water collection tank 7 and causing blockage. The size of the water inlet and outlet holes needs to be hydraulically calculated to meet the height of the water level rise in the water collection tank 7 within the specified time, that is, the buoy The rising distance of 10; the diameter of the water inlet hole is three times the diameter of the water outlet hole, and the two can satisfy the water collection tank 7 within 10 minutes (or other specified time), and the filling time should be deducted from the volume occupied by the buoy 10 ; The water outlet hole at the lower end of the water collection tank 7 is provided with a soft sleeve, which can effectively avoid the influence of friction on the pull rope; The pipe top elevation is 100-200mm; the quality of water corresponding to the effective volume of buoy 10 (1L volume corresponds to the quality of water is 1kg) is far greater than the quality of No. 2 cover plate 5, and the quality of No. 2 cover plate 5 should be much larger The quality of the No. 1 cover 4; the No. 2 cover 5 and the buoy 10 are connected by a stay rope 6, and the buoy 10 rises and pulls the No. 2 cover 5 to rise to open the rainwater pipe 2. The maximum rising distance of the buoy 10 in the box Not less than 1.30d, where d is the diameter of the sewage pipe 3; a No. 1 pulley is arranged below the water collection tank 7, and the stay rope 6 is fixed to the outer surface of the No. 2 cover plate 5 by relying on the No. 1 pulley to change the direction. A No. 2 pulley is arranged between the No. 5 cover plates, and the stay rope 6 is connected to the No. 1 cover plate 4 and the No. 2 cover plate 5 by means of the No. 2 pulley. When the No. 2 cover plate 5 descends, the No. 1 cover plate 4 rises; the No. 1 pulley and the No. 2 cover plate The way of fixed installation of the No. 2 pulley can be varied, whether it is fixedly installed with the bottom of the water collection tank 7 or fixedly connected with the inner wall of the rainwater well 1, it is necessary to ensure that the function of the pulley is to change the direction of the pull rope and connect the buoy 10 with the No. 2 cover Plate 5, connect No. 1 cover 4 and No. 2 cover 5. A kind of fixing mode is provided now, utilize a fixed rod, one end of the fixed rod is movably equipped with a pulley, and the other end adopts modes such as welding to be fixed on the outer wall of the water collecting box 7 or the inner wall of the rainwater well 1.

Usually, the rotation shafts of the No. 1 cover plate 4 and the No. 2 cover plate 5 are arranged on the tops of the corresponding pipe walls, which are opened upwards and closed downwards.

As shown in Figure 2, the rainwater pipeline 2 and the sewage pipeline 3 shown in Figure 1 installed on both sides of the inner wall of the rainwater well 1 are installed on the same side, and the installation position of the pulley is changed, and the effect and principle of use remain unchanged.

The scope of protection of the present invention is not limited to the two situations shown in the figure. When the rotating shafts of the No. 1 cover plate 4 and the No. 2 cover plate 5 are arranged at the bottom of the corresponding pipe wall, the No. 1 cover plate 4 and the No. 2 cover plate 5 Lifting upwards is closed, and falling downwards is opening. The buoy 10 is first connected with the No. 1 cover 4 through the stay rope 6 , and then connected with the No. 2 cover 5 .

It should be noted that when rainfall occurs, rainwater enters the rainwater well 1 through the water inlet grate 11. At this time, since the No. 1 cover plate 4 at the entrance of the sewage pipe 3 is in an open state, the No. 2 cover plate at the entrance of the rainwater pipe 2 is in an open state. 5 is closed, so the rainwater will all enter the sewer pipe 3 and send it away. Along with continuous rainfall, rainwater enters water collecting tank 7, and buoy 10 is arranged in water collecting tank 7, and the water inlet hole setting of water collecting tank 7 is that its water inlet capacity is to fill water collecting tank 7 in 10min (this value can correspond to this rainwater port The ground water collection time t1 is consistent, and can also be greater than t1 as appropriate according to the requirements of the ground scour situation). With the water intake of the water collection tank 7, the water level in the tank gradually rises (the water outlet hole of the water collection tank 7 is far smaller than the water inlet hole), and the buoy 10 rises , The buoy 10 rises to drive the No. 2 cover plate 5 at the entrance of the rainwater pipeline 2 to rise. While the No. 2 cover plate 5 is rising, the No. 1 cover plate 4 at the entrance of the sewage pipe 3 begins to descend. Once the sewage pipe 3 is closed, under the joint action of the pulling force of the No. 1 cover plate 4 and the buoyancy of the buoy 10, the No. 2 cover plate 5 of the rainwater pipe 2 is quickly lifted, and the rainwater pipe 2 is completely opened. The water level will also rise rapidly due to the length of precipitation, and the rainwater will flow out through the rainwater pipe 2 and enter the rainwater drainage system;

After the rainfall stops, the water level in the rainwater well 1 gradually declines, and the outlet hole at the bottom of the water collecting tank 7 gradually empties the water in the water collecting tank 7, and the buoy 10 falls on the bottom of the water collecting tank 7, and the buoy 10 no longer has any influence on the No. 2 cover plate 5. Due to the non-sealed facilities between the No. 2 cover plate 5 and the rainwater pipe 2, a small amount of accumulated water in the well gradually leaks out of the rainwater well 1. After losing the water pressure, the No. 2 cover plate 5 will fall until it closes under the action of gravity , because the quality of No. 2 cover plate 5 is far greater than No. 1 cover plate 4, so No. 1 cover plate 4 lifts up gradually, and sewage pipe 3 is in open state again.

The above-mentioned embodiments only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (10)

1. A rainwater outlet based on a pulley and a buoy for intercepting initial rainwater, comprising a rainwater well (1), a water inlet grate (11) covering the upper port of the rainwater well (1) and a position near the lower end of the rainwater well (1) The rainwater pipeline (2) and the sewage pipeline (3) are characterized in that: the inner surface of the rainwater well (1) is fixedly equipped with a water collection box (7), and the upper and lower outer surfaces of the water collection box (7) are respectively opened There are water inlet holes and water outlet holes, and the inside of the water collection tank (7) is provided with a buoy (10) that can float up and down with the water level; The ports of the rainwater pipe (2) and the sewage pipe (3) close to the rainwater well (1) are respectively movable and equipped with a No. 2 cover plate (5) and a No. 1 cover plate (4) which can rotate around the axis; The lower end of the buoy (10) is fixedly connected with a stay rope (6), and the stay rope (6) passes through the water outlet hole and connects with the outer surface of the No. 2 cover plate (5) and the outer surface of the No. 1 cover plate (4) successively. surface connection. 2. A rainwater outlet for intercepting initial rainwater based on pulleys and buoys according to claim 1, characterized in that: a water inlet tray (8) is arranged above the water inlet hole at the upper end of the water collection tank (7), A filter screen (9) is arranged on the upper end surface of the water inlet tray (8), and a soft sleeve is arranged in the water outlet hole at the lower end of the water collecting tank (7). 3. A gullies based on pulleys and buoys to intercept initial rainwater according to claim 1, characterized in that: the diameter of the water inlet hole is 3 times the diameter of the water outlet hole, and the two can meet the requirements of collecting water in a specified time. The water tank (7) is full. 4. A gully for intercepting initial rainwater based on pulleys and buoys according to claim 1, characterized in that: the No. 1 cover plate (4), the No. 2 cover plate (5) and the buoy (10) There are pulleys in between. 5. A gully for intercepting initial rainwater based on pulleys and buoys according to claim 4, characterized in that: a No. The No. pulley changes direction and is fixed on the outer surface of the No. 2 cover plate (5), and No. 2 pulley is arranged between the No. 1 cover plate (4) and the No. 2 cover plate (5), and the stay rope (6) relies on The No. 2 pulley connects the No. 1 cover plate (4) and the No. 2 cover plate (5). 6. A kind of gullies based on pulleys and buoys for intercepting initial rainwater according to claim 1, characterized in that: the quality of water corresponding to the effective volume of the buoys (10) is greater than that of the No. 2 cover plate ( 5), the quality of the No. 2 cover plate (5) is greater than the quality of the No. 1 cover plate (4). 7. A gully for intercepting initial rainwater based on a pulley and a buoy according to claim 1, characterized in that: the maximum rise distance of the buoy (10) in the tank is not less than 1.30d, where d is the sewage The diameter of the pipe (3). 8. A kind of gullies based on pulleys and buoys for intercepting initial rainwater according to claim 1, characterized in that: the diameter of the rainwater pipe (2) is the same as that of the sewage pipe (3), and the The pipe top elevation of the sewage pipe (3) is 100-200 mm lower than the pipe top elevation of the rainwater pipe (2). 9. A gully for intercepting initial rainwater based on pulleys and buoys according to claim 1, characterized in that: the rotation shafts of the No. 1 cover plate (4) and the No. 2 cover plate (5) are arranged at the same Corresponding to the top of the pipe wall, upward is open and downward is closed. 10. A gully for intercepting initial rainwater based on pulleys and buoys according to claim 1, characterized in that: the rotation shafts of the No. 1 cover plate (4) and the No. 2 cover plate (5) are arranged at corresponding positions At the bottom of the pipe wall, the No. 1 cover plate (4) and the No. 2 cover plate (5) are lifted up to close, and down to open, and the buoy (10) first connects with the stay rope (6) The No. 1 cover plate (4) is connected, and then connected with the No. 2 cover plate (5).