Roof rainwater collecting system

By introducing a coarse filter and an activated carbon adsorption layer into the rooftop rainwater harvesting system, the problem of high impurity content in the rainwater harvesting system is solved, achieving preliminary purification and efficient collection of rainwater.

CN224106510UActive Publication Date: 2026-04-10CHINA 19TH METALLURGICAL CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA 19TH METALLURGICAL CORP
Filing Date
2025-04-23
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In existing rooftop rainwater harvesting systems, rainwater carries impurities into the collection tank, resulting in a high impurity content and inconvenience for subsequent use.

Method used

A roof rainwater harvesting system was designed, including a water collection trough, a water collection bucket, and a sloping drainage roof. The water collection trough is equipped with a coarse filter screen, and the connecting pipe is equipped with a fine filter screen and an activated carbon adsorption layer. The rainwater is initially purified through two filtration and adsorption treatments.

Benefits of technology

It achieves preliminary purification of rainwater, reduces the pressure on subsequent use, avoids pipe blockage, and improves the efficiency and quality of rainwater collection.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a roof rainwater collection system, belongs to the field of rainwater collection, and aims to primarily treat rainwater in the collection process so as to facilitate later use. Comprising a water collecting tank, a water collecting hopper and a slope drainage roof of a roof, the water collecting tank is arranged below an eave of the slope drainage roof in a full-length mode, the end of the water collecting tank is aligned to an inlet of the water collecting hopper, and the water collecting hopper is communicated with a water storage tank through a connecting pipe; an inlet of the water collecting hopper is covered with a coarse filter screen; the connecting pipe comprises a vertical section which is vertically arranged; and a fine filter layer and an activated carbon adsorption layer are arranged in the vertical section of the connecting pipe. Rainwater is reversely drained into the water collecting tank through the slope drainage roof, the rainwater is guided to the position above the water collecting hopper through the water collecting tank, water flows down, large impurities are filtered out through the coarse filter screen, the rainwater filtered for the first time enters the connecting pipe, small impurities are further filtered out through the fine filter screen in the connecting pipe, and then pollutants and peculiar smells in the rainwater are adsorbed through the activated carbon; the collected rainwater is cleaner, and subsequent use is facilitated.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of rainwater collection, specifically is roof rainwater collection system. BACKGROUND

[0002] Sponge city is a new generation of urban rainwater management concept, refers to the city can be like sponge, in adapting to environmental change and coping with natural disasters has good elasticity, through strengthening urban planning construction management, give full play to building, road, green land, water system and ecological system of rainwater absorption, seepage and slow release effect, effectively control rainwater runoff, realize natural storage, natural penetration, natural purification of urban development mode, the core is to reasonably control the rainwater runoff on the city underlying surface, comprehensive use of "seep, lag, storage, net, use, discharge" technical measures, overall plan and coordination water quantity and water quality, ecology and safety many aspects of relations, maximum limit reduces the damage of urban development construction behavior to the original natural hydrological characteristics and water ecological environment, to achieve the multiple goals of repairing urban water ecology, conserving urban water resources, improving urban water environment, guaranteeing urban water safety, reviving urban water culture.

[0003] For the corresponding sponge city requirement, roof rainwater collection of building is one of important means. At present, roof rainwater collection system of building in our country is mostly directly guided roof rainwater into collection jar and collects, although the collection purpose is achieved, but rainwater carries impurities and enters the collection jar, the rainwater impurity content in the collection jar is much, and the subsequent use is inconvenient. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a roof rainwater collection system, which preliminarily processes rainwater during the collection process, facilitating the later use.

[0005] The utility model adopts the technical scheme of a roof rainwater collection system, which comprises a water collecting tank, a water collecting hopper and a sloping drainage roof of a building, the water collecting tank is longitudinally arranged under the eaves of the sloping drainage roof, the end of the water collecting tank is centered with the inlet of the water collecting hopper, the water collecting hopper is connected with a water storage tank through a connecting pipe, the inlet of the water collecting hopper is covered with a coarse filter screen, the connecting pipe comprises a vertical section arranged vertically, a fine filter layer and an activated carbon adsorption layer are arranged in the vertical section of the connecting pipe, and the fine filter screen layer is above the activated carbon adsorption layer along the vertical direction.

[0006] Further, the water collecting hopper is funnel-shaped and gradually expands from the bottom end to the top end, the top end opening is the inlet of the water collecting hopper, and the plane where the top end opening is located is a slope.

[0007] Further, the inclined drainage roof comprises a semicircular lower inclined pipe and a semicircular upper inclined pipe arranged downwardly from the roof ridge, a plurality of the lower inclined pipes are arranged in sequence and side by side on the roof along the transverse direction with the openings upward, one upper inclined pipe is arranged between two adjacent lower inclined pipes with the opening downwardly striding over the two lower inclined pipes, and a semicircular connecting pipe is arranged at the roof ridge and extends transversely with the opening downwardly pressing on the top end of the plurality of lower inclined pipes.

[0008] Further, the vertical section of the connecting pipe is provided with a flat door corresponding to the fine filter layer and the activated carbon adsorption layer.

[0009] Further, the fine filter layer is formed by spreading a fine filter screen on the cross section of the cylinder, and the activated carbon adsorption layer is formed by filling activated carbon in the cylinder.

[0010] Further, a plurality of mounting seats are arranged in the vertical direction in the connecting pipe, and each mounting seat is fixed to the inner wall of the connecting pipe, and the cylinder is arranged on the corresponding mounting seat.

[0011] Further, a dustproof cover is arranged on the top surface of the water storage tank, the dustproof cover is fixedly connected with a handle, and a water faucet is arranged on the lower end of the water storage tank.

[0012] Further, the water collecting tank is reversibly arranged on the roof through a reversing structure.

[0013] Further, the reversing structure comprises a connecting block one, a connecting block two, an extension rod and a fixing rod, the fixing rod is arranged below the inclined drainage roof, one end of the fixing rod is fixed to the roof, and the other end of the fixing rod is hingedly connected to a connecting block three arranged on the inner side edge of the water collecting tank, the connecting block one is fixed to the bottom of the roof, the connecting block two is fixed to the bottom of the water collecting tank, one end of the extension rod is hingedly connected to the connecting block one, and the other end of the extension rod is hingedly connected to the connecting block two, and the water collecting tank is reversed around the connecting position of the water collecting tank and the fixing rod through the extension rod.

[0014] The inclined drainage roof is used for reversing rainwater to the water collecting tank, the rainwater is guided to the upper side of the water collecting tank, the water flow falls down, the larger sundries are filtered by the coarse filter screen, the rainwater is filtered by the fine filter screen in the connecting pipe, the pollutants and peculiar smell in the rainwater are adsorbed by the activated carbon, and the rainwater is stored in the water storage tank, so that the collected rainwater is preliminarily purified through twice filtration and once adsorption, and the collected rainwater is cleaner and is beneficial to subsequent use.

[0015] The flat door arranged on the connecting pipe is convenient for cleaning the filtered sundries and replacing the adsorption material.

[0016] The setting of the overturning structure makes the telescopic rod contract, pulls the bottom end of the water collecting tank, and the upper end of the water collecting tank is rotatably connected with the roof through the connecting block three and the fixed rod, the connecting block two is pulled back, the water collecting tank rotates around the connecting block three, the overturning of the water collecting tank is realized, the problems of pipe blockage and filter failure caused by too many impurities in rainwater are prevented, and the normal operation of the rainwater collecting system is affected. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a local schematic diagram of the slope drainage roof;

[0019] Figure 3 It is a connecting diagram of the water collecting bucket and the water storage tank;

[0020] Figure 4 It is a connecting pipe structure schematic diagram;

[0021] Figure 5 It is an overturning structure schematic diagram.

[0022] In the drawing, the roof 1, the overturning structure 2, the connecting block one 201, the telescopic rod 202, the connecting block two 203, the connecting block three 204, the fixed rod 205, the lower inclined pipe 3, the upper inclined pipe 4, the water collecting tank 5, the water collecting bucket 6, the coarse filter screen 7, the connecting pipe 8, the water storage tank 9, the fine filter screen 10, the activated carbon 11, the connecting pipe 12, the vertical hinged door 13, the door pull 14, the cylinder 15, the mounting seat 16, the dust cover 17, the handle 18 and the water faucet 19. DETAILED DESCRIPTION

[0023] The utility model is further described below in combination with the drawings and examples as follows:

[0024] In the utility model, the terms "vertical", "horizontal", "upper", "lower", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. Figure 1 The orientation or positional relationship is only for the convenience of describing the utility model, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0025] The roof rainwater collecting system, such as Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, it comprises a water collecting tank 5, a water collecting hopper 6 and a sloping drainage roof, which comprises a plurality of semicircular lower inclined pipes 3 and semicircular upper inclined pipes 4 arranged downward from the roof ridge, the plurality of lower inclined pipes 3 are arranged in parallel on the roof in a transverse direction, and the purpose is to guide the rainwater to flow quickly and orderly along the lower inclined pipes 3 to a specific position, so as to avoid the accumulation of rainwater on the roof 1 and cause waterlogging phenomenon, and also lay the foundation for the subsequent rainwater collection process. An upper inclined pipe 4 is arranged between two adjacent lower inclined pipes 3, and the upper inclined pipe 4 is arranged downward on the two adjacent lower inclined pipes 3. When the rainwater falls on the roof 1, it can be first collected and guided by the upper inclined pipe 4, and then flow into the lower inclined pipe 3. Through the layered guiding structure, the rainwater on the roof 1 can be more efficiently collected, and the efficiency of rainwater collection is improved. The water collecting tank 5 is arranged under the eaves of the sloping drainage roof, and the water collecting tank 5 is a component for collecting the rainwater collected from the roof 1 through the lower inclined pipes 3 and the upper inclined pipes 4. The end of the water collecting tank 5 is centered with the inlet of the water collecting hopper 6,

[0026] The water collecting hopper 6 is connected with the water storage tank 9 through a connecting pipe 8. The water collecting hopper 6 is a collection point in the rainwater collection process, and the inlet of the water collecting hopper 6 is covered with a coarse filter screen 7 which can intercept larger impurities in the rainwater. The top end of the water collecting hopper 6 is the inlet, and the outlet is at the bottom end, and the outlet at the bottom end is connected with the connecting pipe 8. The connecting pipe 8 comprises a vertical section arranged vertically. A fine filter layer and an activated carbon adsorption layer are arranged in the vertical section of the connecting pipe 8. Vertically, the fine filter screen layer is above the activated carbon adsorption layer. The main filtering component in the fine filter screen layer is the fine filter screen 10, and the fineness and coarseness of the fine filter screen 10 and the coarse filter screen 7 refer to the relative size of the filter holes. The mesh of the fine filter screen 10 is smaller than that of the coarse filter screen 7, which can filter out smaller impurities and further improve the purity of the rainwater. The main adsorption component in the activated carbon adsorption layer is activated carbon 11, which can adsorb odors, organic pollutants and some residual small impurities in the rainwater, further purify the water quality of the rainwater, and preliminarily purify the rainwater flowing into the water storage tank 9, reduce the pressure of the later purification, and purify the rainwater during the rainwater collection process, shorten the rainwater flow process, and alleviate the pollution caused by the rainwater flowing into the environment.

[0027] The water collecting hopper 6 is funnel-shaped, gradually expanding from the bottom end to the top end, and the top end opening is the entrance of the water collecting hopper 6, and the plane where the top end opening is located is an inclined plane. The top end opening of the water collecting hopper 6 is large, and the area of the coarse filter screen 7 covered thereon is larger, and the effective filtering area of the rainwater is increased, which is beneficial to improve the initial filtering efficiency of the rainwater. The plane where the top end opening is located is an inclined plane, that is, the coarse filter screen 7 is arranged in an inclined inclined plane, so that when the rainwater passes through the coarse filter screen 7, the impurities are more easily slid along the surface of the filter screen under the action of gravity to one side of the water collecting hopper 6, and will not be accumulated on the surface of the filter screen to cause blockage, thereby ensuring the filtering efficiency and continuity of the coarse filter screen 7.

[0028] In order to facilitate the inspection, maintenance and cleaning of the inside of the connecting pipe 8, a horizontal door 13 is arranged on the pipe wall of the vertical section of the connecting pipe 8 corresponding to the fine filter layer and the activated carbon adsorption layer, and the horizontal door 13 is fixedly connected with a door handle 14.

[0029] In order to facilitate the installation of the fine filter layer, the fine filter layer is composed of the fine filter screen 10 spread on the cross section of the cylinder 15. In order to facilitate the installation of the activated carbon adsorption layer, the activated carbon adsorption layer is composed of the activated carbon 11 filled in the cylinder 15. The cylinder 15 is detachably installed in the water collecting tank 5, facilitating the replacement of the fine filter layer and the activated carbon adsorption layer.

[0030] In order to realize reliable installation of the cylinder 15, a plurality of mounting seats 16 are arranged in the connecting pipe 8 in the vertical direction, and each mounting seat 16 is fixed to the inner wall of the connecting pipe 8, and the cylinder 15 is seated on the corresponding mounting seat 16. The mounting seat 16 can be fixed to the inner wall of the connecting pipe 8 by a rubber ring, or a plurality of support blocks can be distributed on the inner wall of the connecting pipe 8 in the circumferential direction.

[0031] In order to prevent dust and sundries from falling into the water storage tank 9, a dust cover 17 is installed on the top surface of the water storage tank 9, the dust cover 17 is fixedly connected with a handle 18, and the handle 18 facilitates the opening and closing operation of the dust cover 17. The lower end of the water storage tank 9 is communicated with a water faucet 19, and the rainwater can be conveniently discharged through the water faucet 19.

[0032] During the process of guiding and draining the rainwater on the sloping drainage roof to the water collecting tank 5, fallen leaves and other sundries will enter the water collecting tank 5, and the sundries will be deposited in the water collecting tank 5, which will cause the effective capacity of the water collecting tank 5 to decrease day by day, so it is necessary to clean the water collecting tank 5. In order to facilitate the cleaning of the water collecting tank 5, in the present embodiment, the water collecting tank 5 is horizontally rotatable and installed on the roof 1 through the overturning structure 2. When cleaning is needed, the sundries in the water collecting tank 5 can be directly poured out by overturning the water collecting tank 5 through the overturning structure.

[0033] Specifically, as shown in FIG. 6, the water collecting tank 5 is horizontally rotatable and installed on the roof 1 through the overturning structure 2. Figure 5As shown, the overturning structure 2 comprises a connecting block one 201, a connecting block two 203, an extension rod 202 and a fixed rod 205; the fixed rod 205 is located below the slope drainage roof, and one end of the fixed rod 205 is fixed to the roof 1, and the other end of the fixed rod 205 is hinged to the connecting block three 204 of the inner side edge of the water collecting tank 5; the connecting block one 201 is fixed to the bottom of the roof 1, and the connecting block two 203 is fixed to the bottom of the water collecting tank 5; one end of the extension rod 202 is hinged to the connecting block one 201, and the other end of the extension rod 202 is hinged to the connecting block two 203; the water collecting tank 5 is overturned around the connecting position of the water collecting tank 5 and the fixed rod 205 through the extension of the extension rod 202. The extension rod 202 can adopt a hydraulic cylinder, an air cylinder and the like, and the extension can be realized through remote control.

[0034] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A roof rainwater harvesting system characterised in that: The invention discloses a kind of slope drainage roof, including water collecting tank (5), water collecting bucket (6) and the slope of roof, the water collecting tank (5) is longitudinally arranged in the eaves of slope drainage roof, the end of water collecting tank (5) is centered with the inlet of water collecting bucket (6), and water collecting bucket (6) is connected with water storage tank (9) by connecting pipe (8);The inlet of water collecting bucket (6) is covered with coarse filter screen (7);Connecting pipe (8) includes vertical segment arranged vertically;Fine filter layer and activated carbon adsorption layer are arranged in the vertical segment of connecting pipe (8);Along vertical, fine filter layer is above activated carbon adsorption layer.

2. The roof rainwater collection system of claim 1, wherein: Water collecting bucket (6) is funnel-shaped, and its top opening is the inlet of water collecting bucket (6), and the plane where the top opening is located is inclined.

3. The roof rainwater collection system of claim 1, wherein: The slope drainage roof includes semicircular lower inclined pipe (3) and semicircular upper inclined pipe (4) arranged obliquely downward from ridge, and a plurality of lower inclined pipes (3) are arranged in parallel on the roof along transverse direction with upward opening;One upper inclined pipe (4) is arranged between two adjacent lower inclined pipes (3) with downward opening striding on the two adjacent lower inclined pipes (3);Semicircular connecting pipe (12) is arranged at the ridge, and the connecting pipe (12) extends transversely with downward opening pressing on the top end of the plurality of lower inclined pipes (3).

4. The roof rainwater collection system of claim 1, wherein: Flat door (13) is arranged on the pipe wall of the vertical segment of connecting pipe (8) corresponding to fine filter layer and activated carbon adsorption layer.

5. The roof rainwater collection system of claim 1, wherein: The fine filter layer is formed by spreading fine filter screen (10) on the cross section of cylinder (15), and the activated carbon adsorption layer is formed by filling activated carbon (11) in the cylinder (15), and the cylinder (15) is detachably installed in the water collecting tank (5).

6. The roof rainwater collection system of claim 5, wherein: A plurality of mounting seats (16) are arranged in the connecting pipe (8) along vertical direction, and each mounting seat (16) is fixed to the inner wall of the connecting pipe (8), and the cylinder (15) is seated on the corresponding mounting seat (16).

7. The roof rainwater collection system of any one of claims 1-6, wherein: Dust cover (17) is installed on the top surface of the water storage tank (9), and the dust cover (17) is fixedly connected with handle (18), and water faucet (19) is connected to the lower end of the water storage tank (9).

8. The roof rainwater collection system of any one of claims 1-6, wherein: The water collecting tank (5) is reversibly installed on the roof (1) along transverse direction by turning structure (2).

9. The roof rainwater collection system of claim 8, wherein: The turning structure (2) includes connecting block one (201), connecting block two (203), telescopic rod (202) and fixed rod (205), the fixed rod (205) is located below the slope drainage roof, one end of the fixed rod (205) is fixed to the roof (1), and the other end of the fixed rod (205) is hinged to the connecting block three (204) of the inner side edge of the water collecting tank (5), the connecting block one (201) is fixed to the bottom of the roof (1), the connecting block two (203) is fixed to the bottom of the water collecting tank (5), one end of the telescopic rod (202) is hinged to the connecting block one (201), and the other end of the telescopic rod (202) is hinged to the connecting block two (203), and the water collecting tank (5) is turned around the connection between the water collecting tank (5) and the fixed rod (205) by telescopic rod (202).