An initial rainwater runoff diversion device

Abstract

The present invention discloses an initial rainwater diversion device. A cement pile is fixedly provided on the lower end surface of the first well chamber of the present invention. An initial rainwater interception groove is formed on the cement pile. A rainwater guiding device is horizontally arranged in the first well chamber. An arc-shaped groove is formed along the length direction of the rainwater guiding device. The initial rainwater interception groove extends upward to the upper end of the rainwater guiding device. The arc-shaped groove of the rainwater guiding device is communicated with the initial rainwater interception groove. A diversion pipe is fixedly provided in the first well chamber. The other end of the diversion pipe passes through the first well chamber and extends into the second well chamber. Two opposite side surfaces of the second well chamber are respectively fixedly connected with a sewage pipe. An adjustable rotary gate device for blocking the diversion pipe is also provided in the first well chamber. This application can effectively separate and discharge the initial rainwater, and effectively solve the problem of difficult initial rainwater diversion.

Description

Technical Field

[0001] The present invention relates to the technical field of rainwater runoff diversion devices, and particularly relates to a first-flush runoff diversion device. Background Art

[0002] With the increasing requirements for the water ecological environment, the pollution problem of the first flush rainwater to urban natural water bodies has gradually been put on the construction agenda. The key problem in current first-flush runoff diversion is how to effectively separate the early-stage first flush rainwater. At present, for first-flush runoff diversion, it is mostly achieved by uniformly collecting, treating and discharging with an end storage tank or by using pollutant monitoring in cooperation with pneumatic or hydraulic transmission automatic control devices to control the discharge of the first flush rainwater. For the former, during the construction process, it is necessary to build a first-flush rainwater collection tank, and a large amount of clean rainwater will flow in during the collection of the first flush rainwater, so the collection efficiency is not ideal. Moreover, building a storage tank requires a large amount of land resources and high investment, and it is less feasible to build a large number of them in urban areas. For the latter, it is necessary to separately configure pneumatic or hydraulic transmission devices, and there are many mechanical and electrical equipment, and at the same time, it is necessary to connect to a high-voltage power supply, so the management, operation and maintenance are complex, and the investment in a large number of construction equipment is high. Therefore, the applicant has specifically designed a first-flush runoff diversion device with a simple structure and low cost. Summary of the Invention

[0003] In order to make up for the deficiencies of the prior art, the present invention provides a first-flush runoff diversion device.

[0004] The technical solution of the present invention is as follows:

[0005] An initial rainwater diversion device includes a first well chamber. The two opposite sides of the first well chamber are respectively fixedly connected to the rainwater pipes of the municipal pipe network communicated therewith, and both rainwater pipes are located outside the first well chamber. A cement pile is also fixedly provided on the lower end surface of the first well chamber, and an initial rainwater interception groove is formed in the cement pile. A rainwater guiding device is horizontally arranged in the first well chamber, and the lower end of the rainwater guiding device is fixedly connected to the upper end of the cement pile. The rainwater guiding device is of a cuboid structure, and an arc-shaped groove is formed in the rainwater guiding device along the length direction. The diameter of the arc-shaped groove is the same as the diameter of the rainwater pipe, and the lower end of the arc-shaped groove is at the same height as the lower end of the rainwater pipe. The initial rainwater interception groove extends upward to the upper end of the rainwater guiding device, and the arc-shaped groove of the rainwater guiding device is communicated with the initial rainwater interception groove; A horizontal diversion pipe is also fixedly provided in the first well chamber, and the upper end of the diversion pipe is at the same height as the lower end of the rainwater pipe. The other end of the diversion pipe passes through the first well chamber and extends into the second well chamber. A cement pile is also fixedly provided in the second well chamber, and a sewage diversion groove is formed in the cement pile. The water outlet of the diversion pipe is located above the sewage diversion groove. The two opposite sides of the second well chamber are respectively fixedly connected to the sewage pipes of the municipal pipe network, and both sewage pipes are located outside the second well chamber; An adjustable rotary gate device for blocking the diversion pipe is also provided in the first well chamber, and a liquid level switch and a delay power-off relay are fixedly provided on the inner side wall of the first well chamber; An external power supply is also fixedly provided outside the first well chamber, and the external power supply, the liquid level switch, the delay power-off relay and the adjustable rotary gate device are sequentially connected through wires. When it starts to rain, the initial rainwater will flow into the arc-shaped groove of the rainwater guiding device in the first well chamber through the rainwater pipes of the municipal pipe network, be intercepted by the initial rainwater interception groove, flow into the lower part of the first well chamber, and flow into the second well chamber through the diversion pipe, and then be discharged through the sewage pipe; As the rainfall process continues, the initial rainwater is effectively discharged. The relatively clean rainwater in the first well chamber will gradually accumulate in volume. The adjustable rotary gate device rotates under the action of buoyancy, causing the adjustable rotary gate device that originally did not block the port of the diversion pipe to gradually block the port of the diversion pipe. After the diversion pipe is completely blocked, it can effectively prevent the clean rainwater that subsequently enters the first well chamber from flowing into the second well chamber through the diversion pipe and being discharged through the sewage pipe. That is to say, at this time, the accumulated clean rainwater in the first well chamber will only be discharged through the rainwater pipe, which is convenient for subsequent reuse of the clean rainwater.

[0006] Preferably, the adjustable rotary gate device includes a buoyancy tank. An iron sheet is fixedly provided at the upper end of the buoyancy tank. An electromagnet is also fixedly connected to the inner side wall of the first well chamber through a horizontal rod. The iron sheet is adapted to the electromagnet. When the electromagnet is energized, it can attract and hold the iron sheet. A guide rod is fixedly provided at the lower end of the buoyancy tank. The guide rod passes downward through the limit guide ring and is hingedly connected to a hinge rod through a hinge member. The other end of the hinge rod is hingedly connected to a sealing door. The hinge rod is fixedly connected to the inner side wall of the well chamber through a gate rotating shaft. The limit guide ring is fixedly connected to the inner side wall of the first well chamber through another horizontal rod. A counterweight lead block is also fixedly connected to the lower end of the hinge member through a soft chain. The external power supply includes a solar panel and a storage battery electrically connected to the solar panel through a wire. The storage battery, the liquid level switch, the time-delay power-off relay, and the electromagnet are sequentially connected through wires. In the case of no rainfall, under the action of the counterweight lead block, one end of the hinge rod connected to the hinge member is lower than one end of the hinge rod connected to the sealing door. At this time, the port of the flow diversion pipe in the first well chamber is not blocked by the sealing door at all. When it starts to rain, the initial rainwater will enter the arc-shaped groove of the rainwater guiding device in the first well chamber along the rainwater pipe, then flow into the initial rainwater intercepting groove through the water outlet hole, then flow into the lower part of the first well chamber through the initial rainwater intercepting groove, and then flow into the second well chamber through the flow diversion pipe, and then be discharged through the sewage pipe. As the rainfall process continues, the initial rainwater is effectively discharged, and the amount of clean rainwater in the first well chamber gradually increases. The buoyancy tank gradually moves upward under the combined action of buoyancy, the guide rod, the hinge rod, and the gate rotating shaft until it contacts the electromagnet. The sealing door will rotate under the drive of the hinge rod until it completely blocks the flow diversion pipe. In this way, it effectively prevents the clean rainwater accumulated subsequently in the first well chamber from being discharged into the flow diversion pipe. The clean rainwater accumulated subsequently in the first well chamber is discharged through the rainwater pipe, which is convenient for subsequent reuse. In addition, since the water level value when the electromagnet contacts the iron sheet is the liquid level value preset by the liquid level switch for closing action, that is to say, when the buoyancy tank moves to contact the electromagnet and the iron sheet, the liquid level switch closes. At this time, the storage battery, the liquid level switch, the time-delay power-off relay, and the electromagnet connected in sequence through the wire are energized, and the electromagnet effectively attracts and holds the iron sheet, effectively ensuring the stability of the sealing door blocking the flow diversion pipe. When the subsequent rainfall decreases as the precipitation process gradually ends, the amount of water accumulated in the first well chamber also decreases. When the water level drops to the liquid level value preset by the liquid level switch for opening action, the liquid level switch will automatically open, but the time-delay power-off relay will continue to supply power to the electromagnet for 6 hours. The continuously energized electromagnet will maintain the stable attraction of the iron sheet, so that the flow diversion pipe is still stably sealed, and the clean rainwater continues to be discharged through the rainwater pipe of the municipal pipe network.

[0007] Preferably, the solar panel is fixedly arranged outside the first well chamber through a fixing rod. The storage battery is fixedly arranged on the fixing rod, and the storage battery is located below the solar panel.

[0008] Preferably, a waterproof shell is further fixedly arranged in the first well chamber, and the waterproof shell covers the time-delay power-off relay. The above setting can effectively protect the time-delay power-off relay from water.

[0009] Preferably, a gate limiting member is further fixedly arranged at one end of the flow diversion pipe located in the first well chamber, and the gate limiting member is in a shape of "7". The above setting can also effectively improve the stability of the plugging gate when plugging the port of the flow diversion pipe.

[0010] Preferably, a scum baffle filter screen is further longitudinally arranged in the first well chamber, and the scum baffle filter screen is located between the cement pile and the adjustable rotary gate device. The upper end of the scum baffle filter screen is 45-55 cm higher than the upper end of the rainwater pipe. The above setting can effectively filter and block large particles and floating substances in the rainwater flowing in the first-flush intercepting tank, thereby effectively preventing the problem that the plugging gate gets stuck when large particles and floating substances flow into the flow diversion pipe. The above setting of the present application can effectively ensure that the plugging gate can rotate smoothly.

[0011] Preferably, a duckbill valve is fixedly connected to one end of the flow diversion pipe located in the second well chamber, and the duckbill valve is located above the sewage diversion tank. The above setting can effectively prevent the sewage in the second well chamber from flowing back into the first well chamber.

[0012] Preferably, a guiding hole is formed in the limit guiding circle, the guiding hole is strip-shaped, the length of the guiding hole is 5-6 cm, and the width of the guiding hole is 1.1-1.2 times the diameter of the guiding rod. In the present application, when the buoyancy box drives the plugging gate to plug or open the flow diversion pipe, the buoyancy box moves about 5-6 cm in the length direction, that is, left and right. Therefore, the length of the guiding hole set in the present application is used to guide the guiding rod, and the width of the guiding hole being 1.1-1.2 times the diameter of the guiding rod is used to limit the guiding rod.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] This application can effectively separate and discharge the first flush of rainwater, effectively solve the problem of difficult first flush diversion, and greatly alleviate the pollution of the water environment by the first flush. Compared with the traditional construction of a storage tank at the end, this application can effectively reduce the amount of clean rainwater entering the storage tank, with low project cost, high operability, and feasibility; in addition, compared with the traditional hydraulic or pneumatic first flush diversion and separation device, this application does not require an external power device. The device claimed in this application is a simple mechanical linkage structure, relying on the buoyancy of rainwater to drive the closing of the gate and relying on the gravity of its own counterweight lead block to control the opening of the gate. The equipment is simple, easy to operate, does not require a large amount of manpower for maintenance and management, and has a relatively low cost; furthermore, in this application, the time-delay power-off relay is powered by a storage battery connected to a solar panel, and there are few electrical equipment and low voltage used in this application, which is safe and reliable; moreover, when this application is in use, after the water level in the first well chamber drops due to a decrease in rainfall, due to the time-delay function of the time-delay power-off relay, the electromagnet can maintain a time-delay energized state for 6 hours, and the time-delay energized electromagnet can effectively attract the iron sheet, thereby keeping the buoyancy tank in a fixed position, that is, keeping the blocking door still blocking the diversion pipe, so as to effectively ensure that the clear rainwater with reduced water volume in the later stage is still discharged along the rainwater pipe of the municipal pipe network until the rainfall ends. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic top view structure diagram of this application;

[0016] Figure 2 is this application Figure 1 in the schematic cross-sectional view structure diagram of A-A;

[0017] Figure 3 is this application Figure 1 in the schematic cross-sectional view structure diagram of B-B;

[0018] Figure 4 is this application Figure 1 in the schematic cross-sectional view structure diagram of C-C;

[0019] Figure 5 is the schematic external power supply structure diagram of this application;

[0020] Figure 6 is the schematic connection relationship diagram of the diversion device and the cement pile in this application;

[0021] Figure 7 is the schematic structure diagram of the limit guiding ring in this application.

[0022] In the figure: 1 is the first well chamber, 2 is the rainwater pipe, 3 is the cement pile, 4 is the first flush interception trough, 5 is the rainwater guiding device, 6 is the arc-shaped trough, 7 is the runoff diversion pipe, 8 is the second well chamber, 9 is the sewage pipe, 10 is the liquid level switch, 11 is the time-delay power-off relay, 12 is the buoyancy tank, 13 is the iron sheet, 14 is the electromagnet, 15 is the guiding rod, 16 is the limit guiding ring, 17 is the hinge, 18 is the hinge rod, 19 is the blocking door, 20 is the horizontal rod, 21 is the gate rotation shaft, 22 is the counterweight lead block, 23 is the solar panel, 24 is the storage battery, 25 is the fixing rod, 26 is the waterproof shell, 27 is the gate limit member, 28 is the scum baffle filter screen, 29 is the duckbill valve, 30 is the sewage guiding trough, 31 is the inspection cover, 32 is the guiding hole. Detailed implementation mode

[0023] As Figures 1 to 7 shown, a first flush runoff diversion device includes a first well chamber 1 and a second well chamber 8. Inspection openings are provided at the upper ends of both the first well chamber 1 and the second well chamber 8, and inspection covers 31 are detachably connected to the inspection openings. Two opposite side surfaces of the first well chamber 1 are respectively fixedly connected to the rainwater pipes 2 of the municipal pipe network communicated therewith, and both rainwater pipes 2 are located outside the first well chamber 1. A cement pile 3 is also fixedly provided on the lower end surface of the first well chamber 1, and a first flush interception trough 4 is provided on the cement pile 3. A rainwater guiding device 5 is also horizontally arranged in the first well chamber 1, and the lower end of the rainwater guiding device 5 is fixedly connected to the upper end of the cement pile 3. The rainwater guiding device 5 is of a cuboid structure, and an arc-shaped trough 6 is provided along the length direction of the rainwater guiding device 5. The diameter of the arc-shaped trough 6 is the same as the diameter of the rainwater pipe 2, and the lower end of the arc-shaped trough 6 is at the same height as the lower end of the rainwater pipe 2. The first flush interception trough 4 extends upward to the upper end of the rainwater guiding device 5, and the arc-shaped trough 6 of the rainwater guiding device 5 is communicated with the first flush interception trough 4; A horizontal runoff diversion pipe 7 is also fixedly provided in the first well chamber 1. One end of the runoff diversion pipe 7 located in the first well chamber 1 is also fixedly provided with a gate limit member 27, and the gate limit member 27 is in the shape of a 7. The upper end of the runoff diversion pipe 7 is at the same height as the lower end of the rainwater pipe 2. The other end of the runoff diversion pipe 7 passes through the first well chamber 1 and then extends into the second well chamber 8 and is fixedly connected to a duckbill valve 29. A cement pile 3 is also fixedly provided in the second well chamber 8, and a sewage guiding trough 30 is provided on the cement pile 3. The duckbill valve 29 is located above the sewage guiding trough 30. Two opposite side surfaces of the second well chamber 8 are respectively fixedly connected to the sewage pipes 9 of the municipal pipe network, and both sewage pipes 9 are located outside the second well chamber 8. The diameter of the sewage pipe 9 is the same as the diameter of the sewage guiding trough 30, and the lower end of the sewage pipe 9 is at the same height as the lower end of the sewage guiding trough 30; A scum baffle filter screen 28 and an adjustable rotary gate device for blocking the runoff diversion pipe 7 are also provided in the first well chamber 1; The scum baffle filter screen 28 is fixedly arranged longitudinally in the first well chamber 1, and the scum baffle filter screen 28 is located between the cement pile 3 and the adjustable rotary gate device. The upper end of the scum baffle filter screen 28 is 45 - 55 cm higher than the upper end of the rainwater pipe 2;

[0024] In the adjustable revolving gate device of the present application, it includes a buoyancy box 12. A iron sheet 13 is fixedly arranged at the upper end of the buoyancy box 12. An electromagnet 14 is also fixedly connected to the inner side wall of the first well chamber 1 through a horizontal rod 20. The iron sheet 13 is adapted to the electromagnet 14. When the electromagnet 14 is powered on, it can attract and hold the iron sheet 13. A guide rod 15 is fixedly arranged at the lower end of the buoyancy box 12. The guide rod 15 passes downward through a limit guide ring 16 and is hingedly connected to a hinge rod 18 through a hinge member 17. The limit guide ring 16 is fixedly connected to the inner side wall of the first well chamber 1 through another horizontal rod 20. A guide hole 32 is formed in the limit guide ring 16. The guide hole 32 is elongated, with a length of 5 - 6 cm and a width that is 1.1 - 1.2 times the diameter of the guide rod 15. The other end of the hinge rod 18 is hingedly connected to a blocking door 19. The hinge rod 18 is fixedly connected to the inner side wall of the well chamber through a gate rotating shaft 21. The lower end of the hinge member 17 is also fixedly connected to a counterweight lead block 22 through a soft chain;

[0025] A liquid level switch 10, a time-delay power-off relay 11 and a waterproof shell 26 are also fixedly arranged on the inner side wall of the first well chamber 1. The waterproof shell 26 covers the time-delay power-off relay 11. An external power supply is also fixedly arranged outside the first well chamber 1. The external power supply includes a solar panel 23 and a storage battery 24 connected to the solar panel 23 through a wire. The solar panel 23 is fixedly arranged outside the first well chamber 1 through a fixing rod 25. The storage battery 24 is fixedly arranged on the fixing rod 25 and is located below the solar panel 23. The storage battery 24, the liquid level switch 10, the time-delay power-off relay 11, and the electromagnet 14 are sequentially connected through wires.

[0026] In the case of no rainfall, under the action of the counterweight lead block, one end of the articulated rod connected to the hinge is lower than one end of the articulated rod connected to the plugging door. At this time, the port of the flow diversion pipe in the first well chamber is not blocked by the plugging door at all. When it starts to rain, the initial rainwater will enter the arc-shaped groove of the rainwater guiding device in the first well chamber along the rainwater pipe, then flow into the initial rainwater interception groove through the water outlet hole, then flow into the lower part of the first well chamber through the initial rainwater interception groove, and flow into the second well chamber through the flow diversion pipe, and then be discharged through the sewage pipe. As the rainfall process continues, the initial rainwater is effectively discharged, and the amount of clean rainwater in the first well chamber gradually increases. The buoyancy box gradually moves upward until it contacts the electromagnet under the combined action of buoyancy, the guide rod, the articulated rod, and the gate rotating shaft. The plugging door will rotate under the drive of the articulated rod until it completely blocks the flow diversion pipe. In this way, it effectively prevents the clean rainwater accumulated subsequently in the first well chamber from being discharged into the flow diversion pipe. The clean rainwater accumulated subsequently in the first well chamber is discharged through the rainwater pipe, which is convenient for subsequent reuse. In addition, since the water level value when the electromagnet contacts the iron sheet is the water level value preset by the liquid level switch for closing action, that is to say, when the buoyancy box moves to the position where the electromagnet contacts the iron sheet, the liquid level switch closes. At this time, the storage battery, the liquid level switch, the time-delay power-off relay, and the electromagnet connected in sequence through the wire are powered on, and the electromagnet effectively attracts the iron sheet, effectively ensuring the stability of the plugging of the flow diversion pipe by the plugging door. When the subsequent rainfall decreases as the precipitation process gradually ends, the accumulated water volume in the first well chamber also becomes smaller. When the water level drops to the water level value preset by the liquid level switch for opening action, the liquid level switch will automatically open. However, the time-delay power-off relay will continue to supply power to the electromagnet for 6 hours, and the continuously powered electromagnet will maintain a stable attraction to the iron sheet, so that the flow diversion pipe is still stably sealed, and the clean rainwater continues to be discharged through the rainwater pipe of the municipal pipe network.

Claims

1. An initial rainwater runoff diversion device, characterized in that: It includes a first well chamber. The two opposite side surfaces of the first well chamber are respectively fixedly connected to rainwater pipes. Both rainwater pipes are located outside the first well chamber. A cement pile is also fixedly provided on the lower end surface of the first well chamber. An initial rain interception groove is formed on the cement pile. A rain guiding device is also horizontally arranged in the first well chamber. The lower end of the rain guiding device is fixedly connected to the upper end of the cement pile. The rain guiding device is of a cuboid structure. An arc-shaped groove is formed in the rain guiding device along the length direction. The diameter of the arc-shaped groove is the same as the diameter of the rainwater pipe. The lower end of the arc-shaped groove is at the same height as the lower end of the rainwater pipe. The initial rain interception groove extends upward to the upper end of the rain guiding device. The arc-shaped groove of the rain guiding device is communicated with the initial rain interception groove. A horizontal waste flow pipe is also fixedly provided in the first well chamber. The upper end of the waste flow pipe is at the same height as the lower end of the rainwater pipe. The other end of the waste flow pipe extends into the second well chamber after passing through the first well chamber. A cement pile is also fixedly provided in the second well chamber. A sewage diversion groove is formed on the cement pile. The water outlet of the waste flow pipe is located above the sewage diversion groove. The two opposite side surfaces of the second well chamber are respectively fixedly connected to sewage pipes. An adjustable rotary gate device for blocking the waste flow pipe is also provided in the first well chamber. A liquid level switch and a delay power-off relay are also fixedly provided on the inner side wall of the first well chamber. An external power supply is also fixedly provided outside the first well chamber. The external power supply, the liquid level switch, the delay power-off relay, and the adjustable rotary gate device are sequentially connected through wires. The adjustable rotary gate device includes a buoyancy box. An iron sheet is fixedly provided at the upper end of the buoyancy box. An electromagnet is also fixedly connected to the inner side wall of the first well chamber through a horizontal rod. The iron sheet is adapted to the electromagnet. When the electromagnet is energized, it can attract the iron sheet. A guide rod is fixedly provided at the lower end of the buoyancy box. The guide rod passes downward through a limit guide ring and is hingedly connected to a hinged rod through a hinge. The other end of the hinged rod is hingedly connected to a blocking door. The hinged rod is fixedly connected to the inner side wall of the well chamber through a gate rotating shaft. The limit guide ring is fixedly connected to the inner side wall of the first well chamber through another horizontal rod. A counterweight lead block is also fixedly connected to the lower end of the hinge through a soft chain. The external power supply includes a solar panel and a storage battery connected to the solar panel through a wire. The storage battery, the liquid level switch, the delay power-off relay, and the electromagnet are sequentially connected through wires. One end of the waste flow pipe located in the second well chamber is fixedly connected with a duckbill valve. The duckbill valve is located above the sewage diversion groove.

2. The initial rainwater runoff diversion device according to claim 1, characterized in that: The solar panel is fixedly arranged outside the first well chamber through a fixing rod. The storage battery is fixedly arranged on the fixing rod, and the storage battery is located below the solar panel.

3. The initial rainwater runoff diversion device according to claim 1, characterized in that: A waterproof shell is also fixedly provided in the first well chamber. The waterproof shell covers the delay power-off relay.

4. The initial rainwater runoff diversion device according to claim 1, wherein: A gate limiting member is also fixedly provided at one end of the waste flow pipe located in the first well chamber. The gate limiting member is in the shape of a 7.

5. The initial rainwater runoff diversion device according to claim 1, characterized in that: A scum baffle filter is also longitudinally arranged in the first well chamber. The scum baffle filter is located between the cement pile and the adjustable rotary gate device, and the upper end of the scum baffle filter is 45-55 cm higher than the upper end of the rainwater pipe.

6. The initial rainwater runoff diversion device according to claim 1, characterized in that: A guide hole is provided in the limit guide circle. The guide hole is strip-shaped, the length of the guide hole is 5-6 cm, and the width of the guide hole is 1.1-1.2 times the diameter of the guide rod.

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