High flow rate clog resistant siphonic rainwater harvesting device

Abstract

The application relates to the technical field of rainwater siphoning, in particular to a high-flow-rate anti-blocking siphoning rainwater collecting device. The device comprises two rainwater collectors connected with a siphoning system, the top of each rainwater collector is provided with a drainage mechanism, a supporting mechanism is arranged between the rainwater collector and the drainage mechanism, a fixing mechanism is arranged between the drainage mechanisms, the drainage mechanism comprises a drainage vertical pipe, one side of the drainage vertical pipe is provided with a water suction vertical pipe, an arc-shaped connecting pipe is arranged between the top ends of the drainage vertical pipe and the water suction vertical pipe, the bottom end of the drainage vertical pipe extends into the rainwater collector, and a spiral drainage mechanism with external driving force is arranged in the middle of the drainage vertical pipe. The spiral drainage mechanism with external driving force can effectively improve the flow speed of rainwater in the pipeline, and helps to solve the problem of insufficient flow speed of the traditional device.

Description

Technical Field

[0001] This invention relates to the field of rainwater siphon technology, specifically a high-flow-rate, anti-clogging siphon rainwater collection device. Background Technology

[0002] With rapid urbanization, increasing building density, and a continuously expanding paved surface area, higher demands are being placed on rainwater drainage systems. Traditional rainwater harvesting devices have gradually revealed limitations over long-term use, particularly in handling extreme rainfall events. Common devices often suffer from insufficient flow rate and are prone to clogging, especially in environments with abundant fallen leaves and debris, where filters and other structures are easily covered, leading to decreased drainage efficiency. Furthermore, existing devices often lack sufficient consideration for ease of maintenance in their structural design, resulting in high cleaning and repair costs and failing to meet the practical needs of modern buildings for efficient and stable drainage systems. In the context of increasingly emphasis on sustainable urban water management, providing a rainwater harvesting device that effectively improves drainage efficiency, reduces clogging risks, and is easy to maintain has become an important direction in current engineering applications. Summary of the Invention

[0003] The present invention aims to solve the above-mentioned problems, thereby providing a high-flow-rate, anti-clogging siphon rainwater collection device that accelerates flow.

[0004] The technical solution adopted by the present invention to solve the aforementioned problem is as follows: A high-flow-rate, anti-clogging siphon rainwater collection device includes two rainwater hoppers respectively connected to a siphon system. Drainage mechanisms are provided on the top of each rainwater hopper. A support mechanism is provided between the rainwater hopper and the drainage mechanism. A fixing mechanism is provided between the drainage mechanisms. The drainage mechanism includes a drainage riser. A water intake riser is provided on one side of the drainage riser. An arc-shaped connecting pipe is provided between the top of the drainage riser and the top of the water intake riser. The bottom end of the drainage riser extends into the rainwater hopper. An externally driven spiral drainage mechanism is provided in the middle of the drainage riser.

[0005] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art: By incorporating an externally driven spiral drainage mechanism, the flow velocity of rainwater within the pipe can be effectively increased, helping to address the insufficient flow rate issue of traditional devices. This spiral drainage mechanism utilizes external driving force to generate auxiliary propulsion, enhancing water flow dynamics and reducing the likelihood of impurities accumulating within the pipe. The overall structural layout considers the stability of the device's operation, which can reduce maintenance requirements and improve system reliability to a certain extent.

[0006] As a preferred embodiment, a further technical solution of the present invention is: Furthermore, the support mechanism includes an arc-shaped support rod, the bottom end of which is fixed to the bottom of the side wall of the rainwater hopper, and the top end of which is fixed to the top side wall of the drainage riser. The support mechanism uses an arc-shaped support rod to connect the rainwater hopper and the drainage riser. This arc-shaped design can effectively avoid the rainwater hopper and other protruding parts, prevent interference between structures, and enhance the stability of the connection.

[0007] Furthermore, the fixing mechanism includes a positioning ring fitted on the lower part of the water intake riser, a connecting rod between the two positioning rings, and a support crossbar connecting the lower parts of the drainage risers. The fixing mechanism achieves relative fixation between the drainage risers through the cooperation of the positioning ring and the connecting rod. Combined with the use of the support crossbar, it helps to maintain the integrity of multiple drainage units, reduce shaking caused by water flow impact, and improve the reliability of long-term use.

[0008] Furthermore, the positioning ring and the end of the connecting rod are detachably connected by bolts, which facilitates subsequent inspection and maintenance.

[0009] Furthermore, the spiral drainage mechanism includes a conical rotating wheel. The drainage riser comprises an upper section and a lower section, rotatably connected to the upper and lower sections by a rotating sleeve. The rotating wheel is rotatably connected to the upper section, and its inner wall is fixed to the rotating sleeve. An inclined guide groove is provided on the rotating wheel. A liquid outlet branch pipe is located on the upper section above the rotating sleeve, with its end opposite to the rotating wheel on another drainage riser. A rotating shaft is located in the middle of the rotating sleeve, and a connecting frame is provided between the rotating shaft and the rotating sleeve. A spiral blade is connected to the bottom end of the rotating shaft. This structure utilizes the water flow from the liquid outlet branch pipe to impact the inclined guide groove on the rotating wheel, converting the kinetic energy of the water flow into the mechanical energy of the rotating wheel, thereby driving the spiral blade to rotate. The rotating spiral blade generates a propulsive effect within the pipe, accelerating the water flow and simultaneously agitating and breaking up any impurities, reducing the risk of blockage. This design achieves system-wide hydraulic energy drive without the need for an additional power source, improving drainage efficiency while maintaining structural simplicity. The fixed connection between the rotating wheel and the rotating sleeve ensures the reliability of power transmission, while the connection between the rotating shaft and the rotating sleeve through the connecting frame provides stable support, enabling the spiral blades to operate smoothly.

[0010] Furthermore, the guide groove of the rotating wheel has an inclination angle of 30-60°, which helps to optimize the water flow impact effect and improve energy conversion efficiency.

[0011] Furthermore, the surface of the helical blades is coated with an anti-fouling coating. This treatment helps reduce dirt adhesion, maintain the smoothness of the blade surface, and thus maintain better operating performance.

[0012] Furthermore, the rainwater hopper is equipped with a filter screen inside. The filter screen structure inside the rainwater hopper can initially intercept larger debris, reducing the possibility of subsequent pipe blockage without affecting the water intake efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of an embodiment of the present invention; Figure 2 This is a top view schematic diagram of the connection structure of the helical blades according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the main cross-sectional structure of the drainage riser according to an embodiment of the present invention; The components in the diagram are labeled as follows: rainwater hopper 1, drainage riser 2, upper section 21, lower section 22, suction riser 3, connecting pipe 4, support rod 5, positioning ring 6, connecting rod 7, rotating wheel 8, rotating sleeve 9, liquid outlet branch pipe 10, rotating shaft 11, spiral blade 12, connecting rod 13. Detailed Implementation

[0014] The present invention will be further described below with reference to embodiments, the purpose of which is only to better understand the content of the present invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0015] A high-flow-rate, anti-clogging siphon rainwater collection device includes two rainwater hoppers 1 connected to a siphon system, with a connecting rod 13 between them. Each rainwater hopper 1 has a drainage mechanism at its top, a support mechanism between the rainwater hopper 1 and the drainage mechanism, and a fixing mechanism between the drainage mechanisms. The drainage mechanism includes a drainage riser 2, with a suction riser 3 on one side of the drainage riser 2. An arc-shaped connecting pipe 4 connects the tops of the drainage riser 2 and the suction riser 3. The bottom of the drainage riser 2 extends into the rainwater hopper 1, and an externally driven spiral drainage mechanism is located in the middle of the drainage riser 2. As a mature existing technology in this field, the siphon drainage system's core component includes a dedicated siphon drainage base that is sealed to the bottom of the rainwater hopper 1. This base has a built-in anti-vortex device. When rainwater accumulates in the hopper to a certain height and submerges the device, it effectively prevents air from entering the pipe system. The pipe system connected to the base forms a complete sealed loop. Negative and positive pressure zones are generated through precisely calculated pipe diameter changes, utilizing atmospheric pressure differences to achieve the siphon effect.

[0016] Furthermore, the support mechanism includes an arc-shaped support rod 5. The bottom end of the support rod 5 is fixed to the bottom of the side wall of the rainwater hopper 1, and the top end of the support rod 5 is fixed to the top side wall of the drainage riser 2. The support mechanism uses an arc-shaped support rod 5 to connect the rainwater hopper 1 and the drainage riser 2. This arc-shaped design can effectively avoid the rainwater hopper 1 and other protruding parts, prevent interference between structures, and enhance the stability of the connection.

[0017] Furthermore, the fixing mechanism includes a positioning ring 6 fitted on the lower part of the water intake riser 3, a connecting rod 7 between the two positioning rings 6, and a support crossbar connecting the lower parts of the drainage risers 2. The fixing mechanism achieves relative fixation between the drainage risers 2 through the cooperation of the positioning rings 6 and the connecting rod 7. Combined with the use of the support crossbar, it helps to maintain the integrity of multiple drainage units, reduce shaking caused by water flow impact, and improve the reliability of long-term use.

[0018] Furthermore, the positioning ring 6 and the end of the connecting rod 7 are detachably connected by bolts, which facilitates subsequent inspection and maintenance.

[0019] Furthermore, the spiral drainage mechanism includes a conical rotating wheel 8, and the drainage riser 2 includes an upper section 21 and a lower section 22. A rotating sleeve 9 is rotatably connected between the upper section 21 and the lower section 22. The rotating wheel 8 is rotatably connected to the upper section 21, and the inner wall of the rotating wheel 8 is fixed to the rotating sleeve 9. An inclined guide groove is provided on the rotating wheel 8. An outlet branch pipe 10 is provided on the upper section 21 and above the rotating sleeve 9. The end of the outlet branch pipe 10 is opposite to the rotating wheel 8 on another drainage riser 2. A rotating shaft 11 is provided in the middle of the rotating sleeve 9. A connecting frame is provided between the rotating shaft 11 and the rotating sleeve 9. A spiral blade 12 is connected to the bottom end of the rotating shaft 11. The spiral blade 12 has 4 to 8 blades and the blade angle is 20° to 45°. This structure uses the water flow from the outlet branch pipe 10 to impact the inclined guide groove on the rotating wheel 8, converting the kinetic energy of the water flow into the mechanical energy of the rotating wheel 8, thereby driving the spiral blade 12 to rotate. The rotating helical blades 12 generate propulsion within the pipe, accelerating the water flow and simultaneously agitating and breaking up any impurities, reducing the risk of blockage. This design utilizes the system's own hydraulic energy for propulsion, eliminating the need for an external power source, thus improving drainage efficiency while maintaining structural simplicity. The fixed connection between the rotating wheel 8 and the rotating sleeve 9 ensures reliable power transmission, while the connection between the rotating shaft 11 and the rotating sleeve 9 via a connecting frame provides stable support, enabling the helical blades 12 to operate smoothly.

[0020] Furthermore, the guide groove of the rotating wheel 8 has an inclination angle of 30-60°, which helps to optimize the water flow impact effect and improve energy conversion efficiency.

[0021] Furthermore, the surface of the helical blade 12 is coated with an anti-fouling coating. This treatment helps reduce dirt adhesion, maintain the smoothness of the blade surface, and thus maintain better operating performance.

[0022] Furthermore, the rainwater hopper 1 is equipped with a filter screen inside. The filter screen structure inside the rainwater hopper 1 can initially intercept larger debris, reducing the possibility of subsequent pipe blockage without affecting the water inlet efficiency.

[0023] Rainwater first enters the rainwater hopper 1, where larger debris is initially intercepted by the internal filter screen. Initially, it is discharged downwards through the drainage riser 2 under gravity. During this gravity flow stage, the water level in the hopper gradually rises. When the water level completely submerges the bottom of the drainage riser 2 and prevents air from entering the pipe, a negative pressure is created inside the system, and the siphon effect is officially activated. After the siphon is formed, rainwater is discharged downwards through the drainage riser 2 at high speed. At this time, the two drainage risers 2 cross and split through the outlet branch pipe 10. The high-speed water flow from each drainage riser 2 impacts the inclined guide groove of the rotating wheel 8 on the other drainage riser 2, converting the kinetic energy of the water flow into mechanical energy, driving the rotating wheel 8 of the other drainer 2 to rotate. The rotating wheel 8 drives the rotating shaft 11 and the spiral blade 12 to rotate through the rotating sleeve 9 and the connecting frame, generating an auxiliary propulsion effect in the pipe, further accelerating the water flow, and simultaneously agitating and breaking up any impurities that may accumulate. This cross-drive method effectively enhances the drainage power and solves the problems of insufficient flow rate maintenance and easy clogging in traditional devices during the siphon stage. Throughout the operation, the arc-shaped support rod 5 effectively avoids interference with components such as the rainwater hopper 1, maintaining structural stability. The fixing mechanism, consisting of the positioning ring 6, connecting rod 7, and support crossbar, ensures the integrity of the two drainage units, reducing swaying caused by high-speed water flow impact. The positioning ring 6 and connecting rod 7 are detachably connected with bolts, facilitating subsequent maintenance and repair. The entire device utilizes its own hydraulic energy for cross-drive, eliminating the need for an additional power source, thus improving drainage efficiency while maintaining structural simplicity and reliability.

[0024] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A high-flow-rate, anti-clogging siphon rainwater collection device, characterized in that: It includes two rainwater hoppers that are respectively connected to the siphon system. Each rainwater hopper is equipped with a drainage mechanism at its top. A support mechanism is provided between the rainwater hopper and the drainage mechanism. A fixing mechanism is provided between the drainage mechanisms. The drainage mechanism includes a drainage riser. A water intake riser is provided on one side of the drainage riser. An arc-shaped connecting pipe is provided between the top of the drainage riser and the top of the water intake riser. The bottom end of the drainage riser extends into the rainwater hopper. An externally driven spiral drainage mechanism is provided in the middle of the drainage riser. The spiral drainage mechanism includes a conical rotating wheel, and the drainage riser includes an upper section and a lower section. A rotating sleeve is rotatably connected between the upper and lower sections. The rotating wheel is rotatably connected to the upper section. The inner wall of the rotating wheel is fixed to the rotating sleeve. An inclined guide groove is provided on the rotating wheel. A liquid outlet branch pipe is provided on the upper section and above the rotating sleeve. The end of the liquid outlet branch pipe is opposite to the rotating wheel on another drainage riser. A rotating shaft is provided in the middle of the rotating sleeve. A connecting frame is provided between the rotating shaft and the rotating sleeve. A spiral blade is connected to the bottom end of the rotating shaft.

2. The high-flow-rate, anti-clogging siphon rainwater collection device according to claim 1, characterized in that: The support mechanism includes an arc-shaped support rod, the bottom of which is fixed to the bottom of the side wall of the rainwater hopper, and the top of which is fixed to the top side wall of the drainage riser.

3. The high-flow-rate, anti-clogging siphon rainwater collection device according to claim 1, characterized in that: The fixing mechanism includes a positioning ring fitted on the lower part of the water intake riser, a connecting rod between the two positioning rings, and a support crossbar connecting the lower parts of the drainage riser.

4. The high-flow-rate, anti-clogging siphon rainwater collection device according to claim 3, characterized in that: The positioning ring and the end of the connecting rod are detachably connected by bolts.

5. The high-flow-rate, anti-clogging siphon rainwater collection device according to claim 1, characterized in that: The guide groove of the rotating wheel has an inclination angle of 30-60°.

6. The high-flow-rate, anti-clogging siphon rainwater collection device according to claim 1, characterized in that: The surface of the helical blades is coated with an anti-fouling coating.

7. The high-flow-rate, anti-clogging siphon rainwater collection device according to claim 1, characterized in that: The rainwater hopper is equipped with a filter screen.

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