Rainwater collecting device and rainwater recycling system

Abstract

The utility model relates to the field of water resource recovery, and discloses a rainwater collecting device and a rainwater recycling system, and the rainwater collecting device comprises a connecting pipe which is arranged at the top of a building. The lower end of the first filtering channel communicates with the connecting pipe, and a plurality of first filtering holes are formed in the periphery of the first filtering channel and used for filtering rainwater. The second filtering channel is arranged in the first filtering channel, the top end of the second filtering channel is not higher than the top end of the first filtering channel, a plurality of second filtering holes are formed in the second filtering channel, and the lower end of the second filtering channel is communicated with the connecting pipe. According to the rainwater collecting device, rainwater is filtered through the first filtering holes in the first filtering channel and filtered through the second filtering holes in the second filtering channel, the rainwater filtered out of the two filtering channels enters the connecting pipe, the rainwater collecting device can fully collect the rainwater, and overflow waste of water resources caused by blockage of the rainwater collecting device is avoided.

Description

Technical Field

[0001] The utility model relates to the field of water resource recovery, and in particular to a rainwater collection device and a rainwater recovery and utilization system. Background Art

[0002] Some buildings are equipped with hanging gardens to enhance the beauty and livability of the buildings. When irrigating the hanging gardens, the irrigation water is often reused by recycling rainwater resources or supplemented by irrigation according to demand.

[0003] Existing rainwater recycling systems require filtering and processing in a rainwater collection device before the collected rainwater can be reused. However, rainwater often enters the water collection device with debris and silt. Larger debris will clog the filter device, causing the rainwater treatment to fail to meet the standards or overflow from the rainwater collection device, resulting in a waste of recyclable water resources. Utility Model Content

[0004] The present invention is made to solve the above-mentioned technical problems, and its purpose is to provide a rainwater collection device and a rainwater recycling system, which can fully collect rainwater and avoid the waste of water resources caused by clogging of the rainwater collection device.

[0005] To achieve the above objectives, the present invention provides a rainwater collection device and rainwater recycling system, comprising a connecting pipe disposed on a building roof. A first filter channel, whose lower end is connected to the connecting pipe and whose outer periphery is provided with a plurality of first filter holes. A second filter channel, disposed within the first filter channel and having a top no higher than the top of the first filter channel, is provided with a plurality of second filter holes and whose lower end is connected to the connecting pipe.

[0006] Preferably, the inlet of the second filter channel is larger than the outlet of the second filter channel.

[0007] Preferably, along the direction of gravity, the width of the second filter channel gradually decreases.

[0008] Preferably, the first filter hole is smaller than the second filter hole.

[0009] Preferably, a water stop ring is provided around the outer wall of the connecting pipe.

[0010] The present invention provides a rainwater recycling system comprising a rainwater collection device as described above, a drainage channel connected to the rainwater collection device, a water storage device connected to a side wall of the drainage channel, and a control valve provided between the drainage channel and the water storage device.

[0011] Preferably, it further comprises an irrigation channel connected to the water storage device, and a boosting device is provided at the connection between the irrigation channel and the water storage device.

[0012] Preferably, the water storage device further comprises a disinfection device evenly distributed in the water storage device and a control device connected to the disinfection device and the boosting device.

[0013] Preferably, the water storage device is provided with a sewage outlet.

[0014] Preferably, it also includes a water replenishment channel connected to the water storage device and the water supply system.

[0015] According to the above description and practice, the rainwater collection device and rainwater recycling system described in the present invention, wherein the rainwater collection device includes a connecting pipe, which is arranged on the top of the building. The first filter channel is connected to the connecting pipe at the lower end, and a plurality of first filter holes are provided on the periphery for filtering rainwater. The second filter channel is arranged in the first filter channel, and the top is not higher than the top of the first filter channel. A plurality of second filter holes are provided inside, and the lower end is connected to the connecting pipe. When the first filter channel is blocked by mud or larger debris, rainwater overflows from the top of the first filter channel and is transferred to the second filter channel, and is filtered through the second filter holes in the second filter channel. The rainwater filtered out of the two filter channels all enters the connecting pipe. The rainwater collection device can fully collect rainwater and avoid overflow and waste of water resources due to blockage of the rainwater collection device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The figure is a schematic cross-sectional view of a rainwater collection device according to an embodiment of the present invention.

[0017] Figure 2 This is a structural diagram of a rainwater recycling system involved in one embodiment of the present utility model.

[0018] Figure 3 This is a structural schematic diagram of a water storage device in a rainwater recycling system involved in one embodiment of the present utility model. DETAILED DESCRIPTION

[0019] The exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments can be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the concepts of the exemplary embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0020] In addition, the accompanying drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the figures represent the same or similar parts, and their repeated description will be omitted. It should be noted that in the present disclosure, the terms "including", "configured with", and "set on" are used to express open-ended inclusion and mean that in addition to the listed elements / components / etc., there may be additional elements / components / etc.; the terms "first", "second", etc. are used only as labels and are not intended to limit the number or order of their objects; the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention.

[0021] Unless otherwise specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0022] The utility model discloses a rainwater collection device 1, which is arranged on the roof or side wall of a building, and is used to collect rainwater from the roof of the building and introduce it into the ground floor of the building through other pipes or for secondary use. Figures 1 to 3 The rainwater collecting device 1 includes a connecting pipe 11, which is arranged on the top of the building. The first filter channel 12 is connected to the connecting pipe 11 at the lower end, and a plurality of first filter holes 15 are provided on the periphery for filtering rainwater. The second filter channel 13 is provided in the first filter channel 12, and the top is not higher than the top of the first filter channel 12. A plurality of second filter holes 16 are provided inside, and the lower end is connected to the connecting pipe 11. When the first filter channel 12 is blocked by mud or larger debris, rainwater overflows from the top of the first filter channel 12 and is transferred to the second filter channel 13, and is filtered through the second filter holes 16 in the second filter channel 13. The rainwater filtered out of the two filter channels all enters the connecting pipe 11. The rainwater collecting device 1 can fully collect rainwater and avoid overflow and waste of water resources due to blockage of the rainwater collecting device 1.

[0023] Furthermore, in order to ensure that when the first filter channel 12 is blocked, the rainwater in the rainwater collection device 1 can stably enter the second filter channel 13, the first filter channel 12 and the second filter channel 13 are coaxially arranged, and the first filter channel 12 surrounds the second filter channel 13, ensuring that when the first filter channel 12 is blocked by mud or larger debris, the rainwater can enter the second filter channel 13 through the top area of ​​the second filter channel 13, and enter the connecting pipe 11 through the second filter channel 13, thereby ensuring the smooth transportation of rainwater.

[0024] It is understandable that in some embodiments, when the rainwater collection device 1 is set on the side wall of a building, some additional water dispersion devices need to be set up. For example, additional overflow square holes need to be opened at the parapet where the rainwater collection device 1 is set to avoid structural safety problems due to water accumulation.

[0025] In order to ensure that the rainwater collection device 1 can still collect and transport water normally when the amount of rainwater is large, in some embodiments, the inlet of the second filter channel 13 is larger than the outlet of the second filter channel 13, to ensure that when rainwater is blocked at the first filter channel 12, rainwater can enter the second filter channel 13 more smoothly and flow out from the outlet of the second filter channel 13 smoothly, thereby ensuring the stability of rainwater transportation and avoiding the waste of water resources due to the rainwater failing to enter the second filter channel 13 in time and overflowing from the upper edge of the first filter channel 12.

[0026] Furthermore, since under normal circumstances, the second filter channel 13 will not be used, the second filter channel 13 is arranged in the first filter channel 12. In order to ensure that the setting of the second filter channel 13 does not affect the rainwater passing through the first filter channel 12, in some embodiments, the width of the second filter channel 13 gradually decreases along the direction of gravity, leaving a larger rainwater outlet for the first filter channel 12, ensuring that when the amount of rainwater is large, the rainwater will not affect the drainage efficiency in the first filter channel 12 due to the small outlet.

[0027] It can be understood that when the first filter channel 12 is blocked, it means that there are more debris in the first filter channel 12 that cannot be filtered by the first filter hole 15, and these debris are blocked on the first filter hole 15, resulting in rainwater being unable to pass through. Therefore, when rainwater overflows into the second filter channel 13, it is necessary to avoid the debris from also blocking the second filter channel 13. Therefore, the first filter hole 15 is smaller than the second filter hole 16. On the one hand, it can avoid the debris in the rainwater overflowing into the second filter channel 13 from also blocking the second filter hole 16, thereby causing the entire rainwater collection device 1 to be blocked; on the other hand, a relatively fine first filter hole 15 is provided in the first filter channel 12, so that under normal circumstances, the rainwater passing through the first filter hole 15 is clearer and can be directly transported to other equipment via the connecting pipe 11 for secondary use.

[0028] In some embodiments, the first filter holes 15 may be holes of a fine grid layer, and the second filter holes 16 may be holes of a coarse grid layer. The fine grid layer and the coarse grid layer can be more conveniently installed in the first filter channel 12 and the second filter channel 13.

[0029] In some embodiments, a water stop ring 14 is provided around the outer wall of the connecting pipe 11. On the one hand, the water stop ring 14 is used to be fixedly connected to the eaves of the building, so that the rainwater collecting device 1 can be stably fixed on the top or side wall of the building; on the other hand, the water stop ring 14 can serve as a sealing structure in the connection area between the connecting pipe 11 and other pipes to prevent rainwater from leaking at the connection gap between the connecting pipe 11 and other pipes, thereby affecting the rainwater collection efficiency of the entire rainwater collecting device 1. At the same time, the design of the water stop ring 14 also extends the service life of the entire rainwater collecting device 1. The water stop ring 14 can adapt to the slight irregularities of the joint and provide a uniform sealing effect, so that the water stop ring 14 can maintain sealing performance even when the temperature changes or the connecting pipe 11 shakes due to the flow of rainwater.

[0030] This utility model discloses a rainwater recycling system, please refer to Figure 2 , comprising the aforementioned rainwater collection device 1 and a drainage channel 2, which is connected to the rainwater collection device 1. A water storage device 3 is connected to the side wall of the drainage channel 2, with a control valve 4 disposed between the drainage channel 2 and the water storage device 3. The rainwater collection device 1 is used to collect rainwater from the building roof and transport it to the water storage device 3 via the drainage pipe 2. The control valve 4 is opened and closed to control whether rainwater enters the water storage device 3, as well as the amount of rainwater entering the water storage device 3.

[0031] In some embodiments, the rainwater recycling device further includes an irrigation channel 5 connected to the water storage device 3. This channel is used to process the recycled rainwater for secondary use as irrigation water, thereby reducing the amount of irrigation water required and conserving water resources. Furthermore, a pressurizing device 51 is provided at the connection between the irrigation channel 5 and the water storage device 3. Multiple nozzles 6 are provided on the side of the irrigation channel 5 closest to the vegetation. The treated rainwater is pressurized by the pressurizing device 51 and sprayed from the nozzles 6, ensuring that the water in the water storage device 3 is sprayed evenly and densely.

[0032] Understandably, rainwater used as irrigation water needs to be properly treated before use to ensure water quality and plant health. Figure 3 In some embodiments, the water storage device 3 further includes a disinfection device 31 and a control device 32. The disinfection devices 31 are evenly distributed within the water storage device 3 and disinfect rainwater in various areas within the water storage device 3 to eliminate possible pathogens, such as bacteria, viruses, and parasites. The control device 32 connects the disinfection device 31 and the pressurizing device 51. When rainwater reaches the water storage device 3 from the rainwater collection device 1 via the drainage channel 2, the control device 32 automatically or manually controls the control device 32 to open the disinfection device 31 to disinfect the rainwater within the water storage device 3. When vegetation needs to be irrigated, the rainwater, under the action of the pressurizing device 51, enters the irrigation channel 5 and is sprayed onto the vegetation to be irrigated via the nozzle 6.

[0033] In some embodiments, the pressure-boosting device 51 may be a water pump or a pressure booster, etc., which can increase the water flow pressure to ensure that the water can be effectively delivered to the irrigation area.

[0034] Furthermore, a soil moisture detector (not shown) can be provided in the soil of the vegetation to be irrigated. The soil moisture detector is connected to the control device 32. The sprinkler 6 can be automatically opened and closed according to the value fed back by the soil moisture detector to realize automatic water replenishment irrigation.

[0035] In addition, the rainwater in the water storage device 3 that has been filtered by the rainwater collection device 1 often still contains mud or relatively fine debris particles. When the rainwater is stored in the water storage device 3 for a long time, these mud and relatively fine debris particles will settle and remain in the water storage device 3. In order to be able to discharge the sediment from the water storage device 3 in time and avoid the rainwater that enters later from being polluted by the sediment for the second time, in some embodiments, a sewage outlet 33 is provided on the water storage device 3. When it is necessary to discharge the sediment in the water storage device 3, the sewage outlet 33 can be opened to clean the water storage device 3.

[0036] It is understood that the irrigation channel 5 obtains water from the water storage device 3 to irrigate the vegetation that needs irrigation. Therefore, when there is less rain and the water level in the water storage device 3 is insufficient, it is necessary to replenish the water storage device 3 with additional water. In some embodiments, the rainwater recycling system also includes a water replenishment channel (not shown) that connects the water storage device 3 and the water supply system. When there is less rain, water from the water supply system can be manually introduced into the water storage device 3 through the water replenishment channel to ensure that when the vegetation needs irrigation, the irrigation channel 5 can promptly divert water to irrigate the vegetation.

[0037] In addition, the rainwater recycling system can adopt a dual power supply mode. That is, the solar photovoltaic panels and batteries are used for power supply. On sunny days, the solar photovoltaic panels can charge and store the batteries. The batteries can also be charged or replaced independently, ensuring that the system can still function on consecutive rainy days.

[0038] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A rainwater collection device, characterized in that: include: Connecting pipe, set on the top of the building; a first filter channel, the lower end of which is connected to the connecting pipe and the outer periphery of which is provided with a plurality of first filter holes; The second filter channel is arranged in the first filter channel, with its top end not higher than the top end of the first filter channel, a plurality of second filter holes are arranged inside, and its lower end is communicated with the connecting pipe.

2. The rainwater collection device according to claim 1, characterized in that The inlet of the second filter channel is larger than the outlet of the second filter channel.

3. The rainwater collection device according to claim 2, characterized in that: Along the direction of gravity, the width of the second filtering channel gradually decreases.

4. The rainwater collection device according to claim 1, wherein: The first filter hole is smaller than the second filter hole.

5. The rainwater collection device according to claim 1, wherein: The outer wall of the connecting pipe is surrounded by a water stop ring.

6. A rainwater recycling system, characterized in that: comprising a rainwater collecting device as described in any one of claims 1 to 5 and a drainage channel, connected to the rainwater collection device; The water storage device is connected to the side wall of the drainage channel, and a control valve is provided between the drainage channel and the water storage device.

7. The rainwater recycling system according to claim 6, characterized in that: It also includes an irrigation channel connected to the water storage device, and a booster device is provided at the connection between the irrigation channel and the water storage device.

8. The rainwater recycling system according to claim 7, characterized in that: The water storage device also includes: Disinfection devices, evenly distributed in the water storage device; A control device is connected to the disinfection device and the pressurizing device.

9. The rainwater recycling system according to claim 6, characterized in that: The water storage device is provided with a sewage outlet.

10. The rainwater recycling system according to claim 6, characterized in that: Also includes: The water replenishment channel is connected to the water storage device and the water supply system.

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