Energy-saving building rainwater collecting device
By incorporating a filter box and a medicine storage box into the building rainwater harvesting system, and combining rotary joints and valve assemblies to control the mixing of medicine with rainwater, the problem of microbial growth in rainwater storage is solved, achieving thorough disinfection and efficient reuse of rainwater.
Patent Information
- Application Number
- CN202310472746.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-04-28
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2043-04-28
AI Technical Summary
Existing building rainwater harvesting systems cannot effectively disinfect during the rainy season, leading to the proliferation of microorganisms and pathogens, deteriorating water quality, and making them unusable during the dry season.
Design an energy-saving building rainwater harvesting device. The device uses a structure consisting of a filter box, a chemical storage box, and a rotary joint to disinfect by mixing chemicals with rainwater. A valve assembly controls the mixing ratio of chemicals and rainwater to ensure thorough disinfection.
It achieves thorough disinfection of rainwater during the collection process, saves on chemicals, ensures rainwater quality, and improves the reuse function of rainwater.
Smart Images

Figure CN116641444B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to water supply and drainage, and in particular to an energy-saving building rainwater harvesting device. Background Technology
[0002] Existing building drainage systems collect rainwater to irrigate surrounding vegetation, reducing water consumption. However, most drainage systems cannot disinfect stored rainwater and only collect it during the rainy season. Since vegetation irrigation is not needed during this time, the rainwater must be stored until the dry season. If the rainwater is not disinfected during this period, microorganisms and pathogens will multiply rapidly in the collection tank, deteriorating the water quality and rendering it unusable for vegetation irrigation. This results in poor practicality of the rainwater collection and reuse function.
[0003] Chinese utility model patent CN213771709U discloses a rainwater disinfection treatment device. This utility model sets an ultraviolet sterilization lamp in the disinfection box. The ultraviolet sterilization lamp requires a power source and has high insulation requirements. The ultraviolet sterilization lamp has poor water treatment effect and incomplete disinfection. Summary of the Invention
[0004] The present invention aims to solve the above-mentioned technical problems, thereby providing an energy-saving building rainwater collection device that collects rainwater while disinfecting it with chemicals, so that the chemicals are fully mixed with the rainwater.
[0005] The technical solution adopted by this invention to solve its technical problem is as follows:
[0006] An energy-saving building rainwater harvesting device includes a water tank, a filter box, a chemical storage tank, a water pump, an inlet pipe, and an outlet pipe. The filter box is located on top of the water tank. The inlet pipe is connected to the filter box, and the outlet pipe is connected to the water pump inside the water tank. The bottom of the filter box is connected to the water tank via a rotary joint. The fixed pipe of the rotary joint is fixedly connected to the filter box, and the rotating pipe of the rotary joint is connected to a hollow rotating seat. The bottom of the rotating seat is connected to an outlet pipe, and the wall of the outlet pipe is connected to multiple branch pipes, the outer ends of which are arc-shaped. The chemical storage tank is located on top of the water tank and is connected sequentially via a first connection. The first and second connecting pipes are connected to the fixed pipe of the rotary joint. A valve assembly is installed between the first and second connecting pipes. The valve assembly includes a valve core and a control rod. The valve core is located at the outlet end of the first connecting pipe. A valve port communicating with the second connecting pipe is opened on the pipe wall at the outlet end of the first connecting pipe. The valve core is fixedly connected to the control rod. The valve core opens and closes the valve port. The valve assembly is controlled to open and close by a control component. The control component includes a disc-shaped cam and a connecting rod. The cam is fixedly connected to the top surface of the rotating seat. A closed sliding groove is opened on the upper disc surface of the cam. One end of the connecting rod is placed in the sliding groove, and the other end of the connecting rod is fixedly connected to the control rod.
[0007] Compared with the prior art, the present invention, which adopts the above technical solution, has the following beneficial effects:
[0008] During the rainwater collection process, the rainwater is disinfected with chemicals. The rainwater's action causes the rotating seat to rotate, thereby controlling the periodic opening and closing of the valve assembly to achieve the optimal mixing ratio between the chemicals and the rainwater, saving chemicals. The rotation of the rotating seat ensures thorough mixing of the chemicals and rainwater, resulting in complete disinfection of the rainwater.
[0009] Furthermore, the optimized solution of the present invention is:
[0010] The rotating seat is in the shape of an inverted frustum.
[0011] The water distribution pipes are laid out horizontally.
[0012] The filter box contains a first filter plate, activated carbon, and a second filter plate arranged from top to bottom. The first filter plate is trough-shaped.
[0013] A sealing ring is provided between the filter box and the water tank.
[0014] The filter box has a cleaning port on its side wall corresponding to the groove of the first filter plate, and a sealing plate is installed outside the cleaning port.
[0015] The first connecting pipe is L-shaped, and the second connecting pipe is inverted L-shaped.
[0016] The connecting rod is inverted L-shaped. Attached Figure Description
[0017] Figure 1 This is a perspective view of an embodiment of the present invention;
[0018] Figure 2 This is a schematic diagram of the internal structure of an embodiment of the present invention;
[0019] Figure 3 This is a schematic diagram of the connection between the medicine storage box and the rotating seat according to an embodiment of the present invention;
[0020] Figure 4 This is a schematic diagram showing the connection between the filter box, the medicine storage box, and the rotating seat according to an embodiment of the present invention;
[0021] Figure 5 This is a schematic diagram of the valve assembly and control assembly according to an embodiment of the present invention.
[0022] In the diagram: Water tank 1; Filter box 2; First filter plate 2-1; Activated carbon 2-2; Second filter plate 2-3; Sealing plate 2-4; Inlet pipe 3; Medicine storage tank 4; Rotary joint 5; Fixed pipe 5-1; Rotating pipe 5-2; Rotating seat 6; Output pipe 7; Water distribution pipe 8; First connecting pipe 9; Vertical pipe 9-1; Horizontal pipe 9-2; Valve port 9-3; Second connecting pipe 10; Valve core 11; Control rod 12; Cam 13; Connecting rod 14; Water pump 15; Outlet pipe 16. Detailed Implementation
[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.
[0024] See Figure 1 , Figure 2 This embodiment is an energy-saving building rainwater harvesting device, mainly composed of a water tank 1, a filter box 2, an inlet pipe 3, a chemical storage tank 4, a rotary joint 5, a rotating seat 6, a valve assembly, and a control assembly. The water tank 1 is vertical, with its four side panels having a corrugated shape. The filter box 2 is installed on the top plate of the water tank 1, and a vertical inlet pipe 3 communicating with the filter box 2 is installed on its upper panel. The chemical storage tank 4 is installed on the top plate of the water tank 1 on the left side of the filter box 2, and the chemical storage tank 4 is arranged close to the filter box 2. Sealing rings are installed between the filter box 2 and the top plate of the water tank 1.
[0025] The filter box 2 is a flat box shape, and inside it, from top to bottom, are arranged a first filter plate 2-1, activated carbon 2-2, and a second filter plate 2-3. The first filter plate 2-1 is groove-shaped. A cleaning port is opened on the side wall of the filter box 2 corresponding to the groove of the first filter plate 2-1. A sealing plate 2-4 is installed outside the cleaning port, which facilitates the cleaning of debris on the first filter plate 2-1.
[0026] A rotary joint 5 is installed at the bottom of the filter box 2, penetrating the top plate of the water tank 1. The fixing pipe 5-1 of the rotary joint 5 is screwed to the bottom plate of the filter box 2, and the rotating pipe 5-2 of the rotary joint 5 is connected to the rotating seat 6. The rotating seat 6 is in the shape of an inverted frustum and has a hollow structure. The rotating seat 6 is located in the upper part of the water tank 1, and the filter box 2 is connected to the water tank 1 through the rotary joint 5. An output pipe 7 connected to the bottom of the rotating seat 6 is installed. The lower end of the output pipe 7 is sealed, and five water distribution pipes 8 connected to it are welded to the wall of the output pipe 7. The water distribution pipes 8 are horizontally arranged, and the outer end of each water distribution pipe 8 is arc-shaped and in the same direction. The axis of the nozzle of the water distribution pipe 8 is tangentially arranged with the output pipe 7. After the rainwater is sprayed out from the water distribution pipe 8, it generates a tangential reaction force on the output pipe 7. This reaction force causes the output pipe 7 and the rotating seat 6 to rotate.
[0027] The bottom of the medicine storage box 4 is equipped with an L-shaped first connecting pipe 9 ( Figure 3 , Figure 4As shown, the first connecting pipe 9 consists of a vertical pipe 9-1 and a horizontal pipe 9-2. The vertical pipe 9-1 penetrates the top plate of the water tank 1. A valve port 9-3 is opened on the pipe wall of the horizontal pipe 9-2 near the rotary joint 5. The horizontal pipe 9-2 is connected to the fixed pipe 5-1 of the rotary joint 5 through the valve port 9-3 and the second connecting pipe 10. The second connecting pipe 10 is inverted L-shaped, with its lower vertical end connected to the valve port 9-3 and its horizontal end connected to the fixed pipe 5-1. The medicine liquid in the medicine storage tank 4 enters the rotating seat 6 sequentially through the first connecting pipe 9 and the second connecting pipe 10.
[0028] First connecting pipe 9 is used to install valve assembly ( Figure 5 As shown, the valve assembly consists of a valve core 11 and a control rod 12. The valve core 11 is installed inside the horizontal pipe 9-2 and is slidably connected to the horizontal pipe 9-2. The control rod 12 is installed at the outer end of the valve core 11. The valve core 11 opens and closes the valve port 9-3. When the valve core 11 is outside the valve port 9-3, the first connecting pipe 9 and the second connecting pipe 10 are connected. When the valve core 11 is inside the valve port 9-3, the first connecting pipe 9 and the second connecting pipe 10 are disconnected.
[0029] The control assembly controls the opening and closing of the valve assembly. The control assembly mainly consists of a cam 13 and a connecting rod 14. The cam 13 is disc-shaped, fitted onto the rotary joint 5 and screwed to the rotating seat 6. A closed groove is formed on the upper surface of the cam 13. The connecting rod 14 is inverted L-shaped, with a roller mounted on the lower end of its vertical rod. The roller is placed within the groove of the cam 13. The horizontal rod of the connecting rod 14 is connected to the control rod 12. As the cam 13 rotates with the rotating seat 6, the connecting rod 14 performs periodic horizontal reciprocating movements. The control rod 12 and the valve core 11 perform reciprocating horizontal movements, causing the valve core 11 to periodically open and close the valve port 9-3, thereby controlling the flow of liquid medicine from the medicine storage tank 4 into the rotating seat 6.
[0030] A water pump 15 is installed at the bottom of the water tank 1, near the side plate of the water tank 1. A water outlet pipe 16 is installed at the outlet of the water pump 15, and the upper end of the water outlet pipe 16 penetrates the top plate of the water tank 1. A solenoid valve can also be installed on the vertical pipe 9-1 of the first connecting pipe 9. A flow sensor is installed in the filter box 2 or the inlet pipe 3. The solenoid valve is controlled by the flow sensor. When there is rainwater flow in the filter box 2 or the inlet pipe 3, the flow sensor controls the solenoid valve to open. Both the flow sensor and the solenoid valve are commercially available finished products.
[0031] The working process of this embodiment is as follows: Rainwater enters the filter box 2 through the inlet pipe 3. The first filter plate 2-1, activated carbon 2-2, and second filter plate 2-3 in the filter box 2 filter the rainwater. The filtered rainwater enters the chamber of the rotating seat 6 through the rotary joint 5, and then sprays out from the water distribution pipe 8 through the outlet pipe 7. The sprayed rainwater generates a tangential reaction force on the outlet pipe 7, which causes the outlet pipe 7 and the rotating seat 6 to rotate. The rotating seat 6 drives the cam 13 to rotate, the connecting rod 14 to move horizontally back and forth periodically, and the control rod 12 and the valve core 11 to move horizontally back and forth. The valve core 11 periodically opens and closes the valve port 9-3, thereby controlling the liquid medicine in the storage tank 4 to enter the rotating seat 6. The liquid medicine mixes thoroughly with the rainwater, completely disinfecting the rainwater. When using the rainwater in the water tank 1, the switch of the water pump 15 is turned on. The water pump 15 outputs the rainwater in the water tank 1 through the outlet pipe 16 to realize the irrigation of vegetation and other work, thus utilizing the rainwater. Open the sealing plate 2-4 regularly to clean the first filter plate 2-1 to ensure unobstructed rainwater flow.
[0032] 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 structural changes made based on the description and drawings of the present invention are included within the scope of the present invention.
Claims
1. An energy-saving building rainwater harvesting device, comprising a water tank, a filter box, a chemical storage tank, a water pump, an inlet pipe, and an outlet pipe, wherein the filter box is located on top of the water tank, the inlet pipe is connected to the filter box, and the outlet pipe is connected to the water pump inside the water tank, characterized in that: The bottom of the filter box is connected to the water tank via a rotary joint. The fixed pipe of the rotary joint is fixedly connected to the filter box. The rotating pipe of the rotary joint is connected to the rotating seat of the hollow structure. The bottom of the rotating seat is connected to the output pipe. The pipe wall of the output pipe is connected to multiple water distribution pipes. The outer end of the water distribution pipe is arc-shaped. The medicine storage tank is placed on top of the water tank. The medicine storage tank is connected to the fixed pipe of the rotary joint via a first connecting pipe and a second connecting pipe. A valve assembly is installed between the first connecting pipe and the second connecting pipe. The valve assembly includes a valve core and a control rod. The valve core is placed at the outlet end of the first connecting pipe. A valve port communicating with the second connecting pipe is opened on the pipe wall at the outlet end of the first connecting pipe. The valve core is fixedly connected to the control rod. The valve core opens and closes the valve port. The valve assembly is controlled to open and close by a control assembly, which includes a disc-shaped cam and a connecting rod. The cam is fixed to the top surface of the rotating seat, and a closed slide groove is opened on the upper disc surface of the cam. One end of the connecting rod is placed in the slide groove, and the other end of the connecting rod is fixed to the control rod. The connecting rod is inverted L-shaped. A roller is installed at the lower end of the vertical rod of the connecting rod. The roller is placed in the slide groove of the cam. The horizontal rod of the connecting rod is connected to the control rod. The reaction force generated by the water spray from the water distribution pipe drives the rotating seat to rotate, and then controls the valve to open and close periodically through the cam and the connecting rod.
2. The energy-saving building rainwater harvesting device according to claim 1, characterized in that: The rotating seat is in the shape of an inverted frustum.
3. The energy-saving building rainwater harvesting device according to claim 1, characterized in that: The water distribution pipes are laid out horizontally.
4. The energy-saving building rainwater harvesting device according to claim 1, characterized in that: The filter box contains a first filter plate, activated carbon, and a second filter plate arranged from top to bottom. The first filter plate is trough-shaped.
5. The energy-saving building rainwater harvesting device according to claim 1, characterized in that: A sealing ring is provided between the filter box and the water tank.
6. The energy-saving building rainwater harvesting device according to claim 1, characterized in that: The filter box has a cleaning port on its side wall corresponding to the slot of the first filter plate, and a sealing plate is installed outside the cleaning port.
7. The energy-saving building rainwater harvesting device according to claim 1, characterized in that: The first connecting pipe is L-shaped, and the second connecting pipe is inverted L-shaped.
Citation Information
Patent Citations
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CN213771709U
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