Automatic flow discarding device of rainwater storage pond

Abstract

The utility model discloses an automatic discarding device for a rainwater storage pond, relates to the field of storage ponds, and aims to solve the problems that impurities can be gathered at the bottom of the storage pond after long-term use, and the existing automatic discarding device is not provided with an anti-blocking mechanism, so that the water inlet end is easily blocked by the gathered impurities when the automatic discarding device works, and the water quality is influenced in the prior art. And therefore, the automatic flow discarding device cannot be used. An electric control valve is connected to one side of the discarding drainage pipe, a conical flow guide cover is connected to the side, away from the discarding drainage pipe, of the electric control valve, a rotating shaft is rotationally arranged in the middle of the interior of the conical flow guide cover, and a plurality of sets of strip-shaped blades in an annular array are fixedly connected to the rotating shaft; a driving device is fixedly arranged on the side, away from the electric control valve, of the conical flow guide cover.

Description

Technical Field

[0001] This utility model relates to the field of stormwater storage tanks, specifically an automatic stormwater diversion device for stormwater storage tanks. Background Technology

[0002] A stormwater storage tank is a facility specifically designed to collect, store, and regulate stormwater runoff. It is typically built into urban drainage systems to cope with peak stormwater runoff periods, playing a crucial role, especially during heavy rain. The main function of a stormwater storage tank is to temporarily store excess rainwater during peak runoff periods, thereby reducing the maximum peak discharge and effectively relieving pressure on the urban drainage system. When stormwater runoff decreases, the storage tank slowly discharges the stored rainwater to maintain the stable operation of the drainage system. Furthermore, stormwater storage tanks have the potential for rainwater resource utilization. Through proper treatment and design, the stored rainwater can be used for non-potable purposes such as urban greening, road cleaning, and toilet flushing, thus achieving effective utilization of rainwater resources. In short, stormwater storage tanks are an important component of urban stormwater management, playing a significant role in alleviating urban flooding, improving drainage system efficiency, and promoting rainwater resource utilization. Existing stormwater storage tanks are often equipped with runoff diversion devices.

[0003] For example, application publication number CN 109594637 A discloses an electrically controlled automatic initial rainwater diversion device, including an inlet pipe (1), an outlet pipe (2) connected to the middle of the inlet pipe (1) via a two-position three-way solenoid valve (3), a storage tank (4) connected to the end of the inlet pipe (1), a diversion pipe (6) at the lower left side wall of the storage tank (4), and an overflow pipe (11) connected to the diversion pipe (6) at the upper left side wall of the storage tank (4). The sensor A (7) on the left side of the two-position three-way solenoid valve (3) and the sensor C (9) at the upper left side wall of the storage tank (4) are used to control the opening and closing state of the two-position three-way solenoid valve (3). A water solenoid valve (5) is provided at the diversion port at the lower left side wall of the storage tank (4), and the opening and closing of the water solenoid valve (5) is controlled by the sensor B (8) on the right side of the two-position three-way solenoid valve and the sensor D (10) at the upper end of the diversion port. The advantages of this invention are: by using the principle of electronic control to control the amount of rainfall, it realizes the automatic diversion of initial rainwater and the collection of subsequent rainwater. It is applicable to many types of rainfall, including those with low rainfall intensity, long rainfall duration, and large rainfall amount. Moreover, each rainfall event does not interfere with each other, is not prone to clogging, has a simple structure, and is easy to maintain.

[0004] Because impurities accumulate at the bottom of stormwater storage tanks after long-term use, and existing automatic diversion devices do not have anti-clogging mechanisms, the accumulated impurities easily clog the inlet when the automatic diversion devices are working, rendering them unusable. Therefore, there is an urgent need in the market to develop an automatic diversion device for stormwater storage tanks to help people solve the existing problems. Utility Model Content

[0005] The purpose of this utility model is to provide an automatic diversion device for rainwater storage tanks, in order to solve the problem mentioned in the background art that, due to the accumulation of impurities at the bottom of the storage tank after long-term use, existing automatic diversion devices do not have anti-clogging mechanisms, which makes it easy for the accumulated impurities to clog the inlet end of the automatic diversion device during operation, thus rendering the automatic diversion device unusable.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an automatic overflow device for a rainwater storage tank, comprising an overflow drain pipe, an electrically controlled valve connected to one side of the overflow drain pipe, a conical flow guide shroud connected to the side of the electrically controlled valve away from the overflow drain pipe, a rotating shaft rotatably disposed in the center of the conical flow guide shroud, multiple sets of annular array strip blades fixedly connected to the rotating shaft, and a driving device fixedly disposed on the side of the conical flow guide shroud away from the electrically controlled valve.

[0007] Preferably, the electrically controlled valve has a valve core rotatably connected inside, a rotating rod is fixedly connected to the upper end of the valve core, a drive mechanism is fixedly connected to the upper end of the electrically controlled valve, and the upper end of the rotating rod extends out of the electrically controlled valve and is fixedly connected to the output end of the drive mechanism.

[0008] Preferably, a first connecting plate is fixedly connected to one side of the wastewater pipe, a second connecting plate is fixedly connected to both sides of the electrically controlled valve, and a third connecting plate is fixedly connected to one side of the conical guide shroud.

[0009] Preferably, the first connecting plate on the wastewater pipe and the third connecting plate on the conical guide shroud are both fixedly connected to the second connecting plates on both sides of the electric control valve by bolts.

[0010] Preferably, a sealing ring is provided between the first connecting plate and the third connecting plate and each of the two second connecting plates.

[0011] Preferably, a drive motor is fixedly installed inside the drive device, and a limit tube is fixedly connected to the middle of one side of the drive device.

[0012] Preferably, one end of the rotating shaft extends out of one side of the conical guide shroud and is inserted into the drive device along the middle of the limiting tube, and one end of the rotating shaft is fixedly connected to the output shaft of the drive motor inside the drive device.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] (1) In this utility model, the addition of a conical guide shroud and a driving device enables the pretreatment of rainwater and silt impurities before they enter the electrically controlled valve. The rotation of the strip blades can effectively chop and stir the impurities, preventing them from clogging the water inlet of the electrically controlled valve, thereby improving the working efficiency and stability of the automatic diversion device and extending the service life of the device.

[0015] (2) In this utility model, key components such as the electronically controlled valve, the conical guide vane, and the drive device are all assembled together using a detachable connection method, which facilitates daily maintenance and troubleshooting. When a component malfunctions, it can be quickly disassembled and replaced, reducing maintenance costs and time, and improving the reliability and flexibility of the overall system.

[0016] (3) In this utility model, the sealing performance between the connecting parts is effectively improved by setting the sealing ring. At the connection of key components such as the conical guide shroud, the electric control valve and the diversion drain pipe, the sealing ring can fit tightly to prevent rainwater and impurities from leaking into the connection, thus ensuring the sealing and integrity of the entire automatic diversion device during operation. Attached Figure Description

[0017] Figure 1 This is a front view of an automatic rainwater diversion device for a rainwater storage tank according to the present invention;

[0018] Figure 2 This is a front sectional view of the present invention;

[0019] Figure 3 This is a side sectional view of the conical air deflector of this utility model;

[0020] Figure 4 This is a detailed enlarged view of the present invention.

[0021] In the diagram: 1. Drainage pipe; 101. First connecting plate; 2. Electrically controlled valve; 201. Valve core; 202. Rotating rod; 203. Drive mechanism; 204. Second connecting plate; 205. Bolt; 3. Conical guide shield; 301. Third connecting plate; 4. Rotating shaft; 401. Strip blade; 5. Drive device; 501. Drive motor; 502. Limiting tube. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Please see Figure 1-4One embodiment of this utility model provides an automatic rainwater diversion device for a rainwater storage tank, including a diversion drainage pipe 1. An electrically controlled valve 2 is connected to one side of the diversion drainage pipe 1. A valve core 201 is rotatably connected inside the electrically controlled valve 2. A rotating rod 202 is fixedly connected to the upper end of the valve core 201. A drive mechanism 203 is fixedly connected to the upper end of the electrically controlled valve 2. The upper end of the rotating rod 202 extends out of the electrically controlled valve 2 and is fixedly connected to the output end of the drive mechanism 203. When diversion is required, the valve core 201 is driven to rotate by the drive mechanism 203, causing the electrically controlled valve 2 to open, and the rainwater accumulated inside the storage tank is discharged through the diversion drainage pipe 1.

[0024] Please see Figure 2 and Figure 4 The electric control valve 2 is connected to a conical guide shroud 3 on the side away from the diversion drain pipe 1. A first connecting plate 101 is fixedly connected to one side of the diversion drain pipe 1. Second connecting plates 204 are fixedly connected to both sides of the electric control valve 2. A third connecting plate 301 is fixedly connected to one side of the conical guide shroud 3. The first connecting plate 101 on the diversion drain pipe 1 and the third connecting plate 301 on the conical guide shroud 3 are fixedly connected to the second connecting plates 204 on both sides of the electric control valve 2 by bolts 205. Sealing rings are provided between the first connecting plate 101 and the third connecting plate 301 and the two second connecting plates 204 respectively. The sealing rings improve the sealing of the connection structure. The various structures can be separated by removing the bolts 205, which facilitates the maintenance and replacement of the electric control valve 2 and its auxiliary components.

[0025] Please see Figure 2-3 A rotating shaft 4 is rotatably installed in the center of the conical guide shroud 3. Multiple sets of annular array strip blades 401 are fixedly connected to the rotating shaft 4. A drive device 5 is fixedly installed on the side of the conical guide shroud 3 away from the electric control valve 2. A drive motor 501 is fixedly installed inside the drive device 5. A limit tube 502 is fixedly connected to the center of one side of the drive device 5. One end of the rotating shaft 4 extends out of one side of the conical guide shroud 3 and is inserted into the drive device 5 along the center of the limit tube 502. The other end of the rotating shaft 4 is fixedly connected to the output shaft of the drive motor 501 inside the drive device 5. Before the electric control valve 2 is opened, the drive motor 501 drives the rotating shaft 4 to rotate, which in turn drives the multiple strip blades 401 to rotate. When water and silt impurities in the reservoir enter the conical guide shroud 3, the rotating strip blades 401 chop and stir the silt impurities, preventing them from entering the electric control valve 2 and causing blockage.

[0026] Working Principle: In operation, the drive mechanism 203 is first activated, causing the valve core 201 to rotate inside the electrically controlled valve 2, thus opening the valve. Subsequently, the drive motor 501 within the drive unit 5 starts, driving the rotating shaft 4 and its multiple sets of annular arrayed strip blades 401 to rotate inside the conical guide shroud 3. At this time, rainwater and any silt or impurities carried by the stormwater storage tank enter through the conical guide shroud 3. The rotation of the strip blades 401 shreds and agitates the silt and impurities, effectively preventing blockage of the inlet end of the electrically controlled valve 2. The shredded and agitated water then flows smoothly through the opened electrically controlled valve 2, enters the diversion drain pipe 1, and is finally discharged, realizing the automatic diversion function of the stormwater storage tank. This also ensures the long-term stable operation of the device and avoids the failure of the diversion device due to blockage by impurities.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A rainwater storage tank automatic flow rejection device, comprising a flow rejection drain pipe (1), characterized in that: One side of the abandoned flow drain pipe (1) is connected with an electric control valve (2), the electric control valve (2) is connected with a conical flow guide cover (3) away from the abandoned flow drain pipe (1), a rotating shaft (4) is rotatably arranged in the middle of the conical flow guide cover (3), a plurality of groups of annular array of strip-shaped blades (401) are fixedly connected on the rotating shaft (4), and a driving device (5) is fixedly arranged on the side of the conical flow guide cover (3) away from the electric control valve (2).

2. The automatic flow rejection device for rainwater storage tank according to claim 1, characterized in that: A valve core (201) is rotatably connected in the electric control valve (2), the valve core (201) is fixedly connected with a rotating rod (202) at the upper end, and a driving mechanism (203) is fixedly connected at the upper end of the electric control valve (2), the upper end of the rotating rod (202) extends out of the electric control valve (2) and is fixedly connected with the output end of the driving mechanism (203).

3. The automatic flow rejection device for rainwater storage tank according to claim 1, characterized in that: A first connecting disc (101) is fixedly connected on one side of the abandoned flow drain pipe (1), a second connecting disc (204) is fixedly connected on both sides of the electric control valve (2), and a third connecting disc (301) is fixedly connected on one side of the conical flow guide cover (3).

4. The automatic flow rejection device for rainwater storage tank according to claim 3, characterized in that: The first connecting disc (101) on the abandoned flow drain pipe (1) and the third connecting disc (301) on the conical flow guide cover (3) are fixedly connected with the second connecting disc (204) on both sides of the electric control valve (2) through bolts (205).

5. The automatic flow rejection device for rainwater storage tank according to claim 4, characterized in that: Sealing rings are arranged between the first connecting disc (101) and the third connecting disc (301) and the two second connecting discs (204) respectively.

6. The automatic flow rejection device for rainwater storage tank according to claim 1, characterized in that: A driving motor (501) is fixedly arranged in the driving device (5), and a limiting tube (502) is fixedly connected on one side of the driving device (5).

7. The automatic flow rejection device for rainwater storage tank according to claim 6, characterized in that: One end of the rotating shaft (4) extends out of one side of the conical flow guide cover (3) and is inserted into the driving device (5) through the middle of the limiting tube (502), and one end of the rotating shaft (4) is fixedly connected with the output shaft of the driving motor (501) in the driving device (5).

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