Rainwater collecting and recycling treatment device and method

Abstract

The invention relates to the technical field of rainwater collection and utilization, and provides a rainwater collection and recycling treatment device and method.The rainwater collection and recycling treatment device comprises a water collecting well, a water storage well and a delayed water collecting assembly, the water collecting well is arranged on one side of a road surface and used for collecting rainwater and discharging the rainwater to a road drainage system, and the water storage well is arranged on the other side of the road surface; the water storage well is arranged underground, and after the water level in the water collecting well rises to the height making contact with the delay floating ball, the delay floating ball can rise under the action of buoyancy so as to drive the swing rod to swing and enable the valve column to be pulled out of the connecting channel, and therefore the water collecting well can drain water into the water storage well. Through the delayed water collecting assembly, rainwater with poor water quality in the initial stage of rainfall is prevented from entering the water storage well, the rainwater stored in the water storage well is mainly relatively clean rainwater in the middle stage of rainfall, and the water quality of the collected rainwater is improved. According to the technical scheme, the technical problems that in the prior art, the pollutant content of initial rainwater is high, the water quality is poor, and the use scene is limited are solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to the technical field of rainwater collection and utilization, and in particular, to a rainwater collection and recycling processing device and method. BACKGROUND

[0002] With the rapid development of the global economy and the continuous growth of the population, the problem of water resource shortage is becoming increasingly serious, which has become an important factor restricting social development and affecting people's quality of life. As an indispensable basic resource for human survival and development, the rational use and protection of water resources have received widespread attention from countries around the world.

[0003] By collecting road rainwater and using it for road watering maintenance, landscaping irrigation, landscape water replenishment and other non-drinking water fields, not only can the dependence on traditional water resources be effectively reduced, but also the pressure on the municipal water supply system can be reduced, which has significant economic and environmental benefits.

[0004] However, due to long-term exposure of the road surface, a large amount of pollutants such as oil stains, heavy metals and various suspended solids have accumulated. In the early stage of rainfall, these pollutants will be quickly washed into the rainwater, resulting in poor water quality of the early stage rainwater. If this part of rainwater is directly collected, the poor water quality will limit its use scenarios. For example, when used for landscaping irrigation, it may have a negative impact on plant growth, oil stains may block the stomata of plants, and heavy metals may accumulate in the plant body, affecting plant health; when used for road watering maintenance, rainwater containing oil stains may make the road slippery, increasing the traffic safety hazard, and suspended solids may also cause the clogging of watering equipment.

[0005] Therefore, how to effectively treat the rainwater in the early stage of rainfall, improve the water quality of the collected rainwater, and broaden the application range of rainwater collection and recycling has become a technical problem to be solved. SUMMARY

[0006] To overcome the above defects, embodiments of the present application provide a rainwater collection and recycling processing device and method, which solve the technical problem that the early stage rainwater has high pollutant content and poor water quality, and the use scenarios are limited in the related art.

[0007] According to one aspect, at least one embodiment of the present application provides a rainwater collection and recycling processing device, comprising a water collecting well, a water storage well and a delay water collecting assembly, the water collecting well is configured on one side of the road surface and connected with the road drainage system, the water collecting well is used to collect rainwater on the road surface, the water storage well is configured underground, the water collecting well and the water storage well are communicated through a connecting channel, and the delay water collecting assembly comprises a swing rod hinged in the water collecting well, a delay floating ball and a valve column connected to two ends of the swing rod, respectively. The delay water collecting assembly has a closed state and an open state; In the closed state, the delay float ball is suspended in the water collecting well, and the valve column is inserted and blocked in the port of the connecting channel, so that the rainwater in the water collecting well in the early stage of rainfall flows to the road drainage system; In the open state, when the water level in the water collecting well rises, the delay float ball can drive the swing rod to swing under the action of the buoyancy of the rainwater, so that the valve column moves out of the connecting channel and opens the connecting channel, thereby enabling the rainwater in the water collecting well in the middle and late stages of rainfall to flow to the water storage well.

[0008] For example, the rainwater collection and reuse processing device provided by at least one embodiment of the present application further comprises: The water pumping assembly comprises a water pumping tap, a connecting pipe, a compensation hose, a water immersion pipe and a limiting float ball connected in sequence. The water pumping tap is arranged on the ground and is configured to be connected with and supply water to external water using equipment. The connecting pipe is buried underground. The compensation hose and the water immersion pipe are located in the water storage well. The limiting float ball is connected to the side of the water immersion pipe and is configured to drive the water immersion pipe to rise and fall synchronously under the action of the rising and falling of the rainwater in the water storage well and keep the end of the water immersion pipe immersed below the water surface.

[0009] For example, the rainwater collection and reuse processing device provided by at least one embodiment of the present application further comprises: The water guiding core rod is coated with a water absorbing layer. The top end of the water guiding core rod is configured to be inserted into the soil of the road greenbelt, and the bottom end extends downward into the water storage well. The water guiding core rod can guide the water in the water storage well to the soil of the road greenbelt by means of the water absorbing layer.

[0010] For example, the rainwater collection and reuse processing device provided by at least one embodiment of the present application further comprises: An inspection well connected to the ground is arranged above the water storage well. A pollution collecting and residue filtering cloth bag is arranged in the water storage well. The pollution collecting and residue filtering cloth bag has an opening arranged upward and configured to collect residue. A pull rope is connected to the top of the pollution collecting and residue filtering cloth bag. The top end of the pull rope is fixed to the top end of the inspection well. The pull rope is configured to drive the pollution collecting and residue filtering cloth bag to move upward to move out of the water storage well and the inspection well.

[0011] For example, the rainwater collection and reuse processing device provided by at least one embodiment of the present application further comprises: The support assembly is arranged in the sewage collecting filter residue cloth bag and comprises a center mounting disc and a plurality of side support frames distributed circumferentially on the outer periphery of the center mounting disc, the center mounting disc is arranged on the inner bottom surface of the sewage collecting filter residue cloth bag, each group of side support frames comprises a horizontal rod and a side rod, one end of the horizontal rod is hingedly connected to the outer periphery of the center mounting disc and is connected to the inner bottom wall of the sewage collecting filter residue cloth bag, the side rod is connected to the inner wall of the sewage collecting filter residue cloth bag and is hingedly connected to the other end of the horizontal rod, and the lower end of the pull rope is provided with a plurality of branch ropes connected to the side rods one by one.

[0012] For example, the rainwater collecting and recycling device provided by at least one embodiment of the present application further comprises: The end, at which the horizontal rod and the side rod are hingedly connected, is provided with a first counterweight, which is used to provide a force for the horizontal rod to approach the bottom wall of the water storage well, to press downward and make the bottom wall of the sewage collecting filter residue cloth bag adhere to the inner bottom surface of the water storage well.

[0013] For example, the rainwater collecting and recycling device provided by at least one embodiment of the present application further comprises: The bottom end of the water immersion insertion pipe is provided with a second counterweight, which is used to make the end of the water immersion insertion pipe be submerged below the water surface.

[0014] For example, the rainwater collecting and recycling device provided by at least one embodiment of the present application further comprises: The side of the valve column is provided with a limiting column, the end of the swing rod is provided with a sliding groove, the limiting column is slidingly matched in the sliding groove, when the swing rod swings under the floating of the delay float, the limiting column can slide along the sliding groove and drive the valve column to be separated from the port of the connecting channel.

[0015] For example, the rainwater collecting and recycling device provided by at least one embodiment of the present application further comprises: The top of the water collecting well is provided with a rainwater grate.

[0016] According to another aspect, at least one embodiment of the present application further provides a rainwater collecting and recycling method, which uses a rainwater collecting and recycling device and comprises the following steps: S1 rainwater collecting: after the water level in the water collecting well reaches the suspension position of the delay float, the delay float rises under the action of the rainwater buoyancy, drives the swing rod to swing to make the valve column move out of the connecting channel, and then makes the rainwater in the water collecting well in the later stage of rainfall flow to the water storage well, to collect rainwater; S2 rainwater recycling: the water in the water storage well is pumped to an external water using device by the water pumping assembly, and / or the water in the water storage well is guided to the soil of a road greenbelt by the water guiding core rod.

[0017] The embodiment of the present application has the following beneficial effects: In the present application, at the initial stage of rainfall, the road surface pollutants are washed into the rainwater, and the water quality of the rainwater is poor at this time. The water level in the water collecting well is low, and the delay floating ball is suspended in the water collecting well and is not affected by the buoyancy. The valve column is inserted into the connecting channel and blocks it, so that the rainwater in the water collecting well is normally discharged to the road drainage system, avoiding the entry of the heavily polluted rainwater at the initial stage into the water storage well.

[0018] With the continuation of the rainfall, the water level in the water collecting well gradually rises. When the water level rises to the height of the delay floating ball, the delay floating ball is affected by the buoyancy and starts to rise. Since the middle part of the swing lever is hinged to the inner wall of the water collecting well, the rising of the delay floating ball drives the swing lever to swing around the hinge point. The swing of the swing lever is transmitted to the valve column at the other end, so that the valve column is pulled out of the connecting channel. At this time, the water collecting well and the water storage well are connected through the connecting channel, and the rainwater in the water collecting well starts to flow to the water storage well. Since most of the road surface pollutants have been washed away by the initial rainwater at the middle and late stages of the rainfall, the rainwater entering the water storage well at this time is relatively clean, which is suitable for subsequent reuse.

[0019] By means of the delay water collecting assembly, the rainwater with poor water quality at the initial stage of the rainfall (referring to the period before the water level in the water collecting well contacts the delay floating ball) is avoided from entering the water storage well, so that the rainwater stored in the water storage well is mainly the relatively clean rainwater at the middle and late stages of the rainfall (referring to the period after the water level in the water collecting well contacts the delay floating ball), and the water quality of the collected rainwater is improved. The use of the rainwater in the fields of road watering maintenance, greening irrigation, etc. is ensured, and the restriction on the use scenarios caused by the water quality problem is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present application. Other drawings can also be obtained according to the contents of the example embodiments of the present application and the drawings by those skilled in the art without any creative effort.

[0021] Figure 1 FIG. 1 is a structural schematic diagram of a rainwater collecting and reusing treatment device according to an embodiment of the present application; Figure 2 FIG. 2 is a schematic diagram of the outer shape of a water collecting well according to the embodiment of the present application; Figure 1 FIG. 3 is a structural schematic diagram of the water collecting well when the water level in the water collecting well is lower than the delay floating ball according to the embodiment of the present application; Figure 3 FIG. 4 is a structural schematic diagram of the water collecting well when the water level in the water collecting well reaches the delay floating ball according to the embodiment of the present application; Figure 1 FIG. 5 is a structural schematic diagram of the water collecting well when the water level in the water collecting well is lower than the delay floating ball according to the embodiment of the present application; Figure 4 FIG. 6 is a structural schematic diagram of the water collecting well when the water level in the water collecting well reaches the delay floating ball according to the embodiment of the present application; Figure 1 FIG. 7 is a structural schematic diagram of the water collecting well when the water level in the water collecting well reaches the delay floating ball according to the embodiment of the present application; Figure 5 Figure 2 is a structural schematic diagram of the water collection well in the embodiment of the present application; Figure 2 Figure 3 is an enlarged view of A in Figure 2; Figure 6 Figure 4 is a structural schematic diagram of another angle of the water collection well in the embodiment of the present application; Figure 1 Figure 5 is a structural schematic diagram of the water storage well in the embodiment of the present application; Figure 7 Figure 6 is a structural schematic diagram of the sewage filter residue cloth bag in the embodiment of the present application; Figure 1 Figure 7 is an enlarged view of B in Figure 6. Figure 8 Figure 1 Figure 8 is a structural schematic diagram of another angle of the sewage filter residue cloth bag in the embodiment of the present application. Figure 9 Figure 9 is an enlarged view of C in Figure 8. Figure 8

[0022] In the figure: 1, water collection well; 2, water storage well; 3, time-delay water collection assembly; 4, connecting channel; 301, swing rod; 302, time-delay floating ball; 303, valve column; 5, water pumping assembly; 501, limiting floating ball; 502, water pumping plug; 503, connecting pipe; 504, compensating hose; 505, water immersion pipe; 6, water guide core rod; 7, inspection well; 8, sewage filter residue cloth bag; 9, pull rope; 901, branch rope; 10, support assembly; 11, central mounting disc; 12, cross rod; 13, side rod; 14, first counterweight; 506, second counterweight; 3031, limiting column; 3011, sliding groove; 15, rainwater grate. DETAILED DESCRIPTION

[0023] The present application will be further described below in conjunction with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

[0024] In order to make the drawing simple, only the parts related to the present application are shown in each figure, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, only one of the parts with the same structure or function is shown in some figures, or only one of them is marked. In this text, “one” not only means “only one”, but also means “more than one”, and “several” includes “two” and “more than two”.

[0025] In this text, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms “mounting”, “connection” and “linking” should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] ​​In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0028] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] like Figures 1-9 The diagram illustrates a rainwater harvesting and reuse device according to an embodiment of the present invention, comprising a collection well 1, a storage well 2, and a delayed collection assembly 3. The collection well 1 is located on one side of the road surface and is formed by excavation from the ground downwards. The top opening of the collection well 1 is connected to a road drainage outlet to collect rainwater from the road surface. A drainage outlet is provided at the bottom of the collection well 1, which is connected to the road drainage system, allowing rainwater to drain out during the initial stages of rainfall. The storage well 2 is located underground and connected to a connecting channel 4, used to receive rainwater from the collection well 1. The storage well 2 is equipped with an outlet for connecting to water-using equipment such as road watering and maintenance, and greening irrigation. In the delayed collection assembly 3, a swing arm 301 is hinged in the middle of the collection well 1. A delayed float 302 is connected to one end of the swing arm 301, and a valve spool 303 is connected to the other end of the swing arm 301 to seal the connecting channel 4. To ensure the stability of the sliding of the valve stem 303, a sliding fit structure, such as the common sliding groove and sliding block structure, can be designed between the valve stem 303 and the inner wall of the water collection well 1. Since the swing of the rocker arm 301 is an arc-shaped trajectory, in order to adapt to this arc-shaped trajectory, both the valve stem 303 and the connecting channel 4 can be designed with an arc shape to match it, or the valve stem 303 can be made of rubber, which can adapt to the arc-shaped swing trajectory of the rocker arm 301 through its own deformation.

[0030] Working principle: In the early stage of rainfall, the road surface pollutants are washed into the rainwater, and the water quality of the rainwater is poor at this time. The water level in the catchment well 1 is low, and the delay floating ball 302 is suspended in the catchment well 1 and is not affected by the buoyancy. The valve column 303 is inserted into the connecting channel 4 and blocks it, so that the rainwater in the catchment well 1 is normally discharged to the road drainage system, avoiding the entry of the heavily polluted early stage rainwater into the storage well 2.

[0031] With the continuation of the rainfall, the water level in the catchment well 1 gradually rises. When the water level rises to the height of the delay floating ball 302, the delay floating ball 302 is affected by the buoyancy and begins to rise. Since the middle of the swing lever 301 is hinged to the inner wall of the catchment well 1, the rising of the delay floating ball 302 drives the swing lever 301 to swing around the hinge point. The swing of the swing lever 301 is transmitted to the valve column 303 at the other end, causing the valve column 303 to pull out of the connecting channel 4. At this time, the catchment well 1 and the storage well 2 are connected through the connecting channel 4, and the rainwater in the catchment well 1 begins to flow to the storage well 2. Since most of the road surface pollutants have been washed away by the early stage rainwater in the middle and late stages of rainfall, the rainwater entering the storage well 2 at this time is relatively clean and suitable for subsequent reuse.

[0032] Through the delay catchment assembly 3, the poor quality rainwater in the early stage of rainfall (referring to the period before the water level in the catchment well 1 contacts the delay floating ball 302) is avoided from entering the storage well 2, so that the rainwater stored in the storage well 2 is mainly the relatively clean rainwater in the middle and late stages of rainfall (referring to the period after the water level in the catchment well 1 contacts the delay floating ball 302), improving the water quality of the collected rainwater. It provides protection for the use of rainwater in road watering maintenance, greening irrigation and other fields, and reduces the restrictions on the use scenarios caused by water quality problems.

[0033] In some examples, as shown in FIG. 5, the water pumping assembly 5 is configured with a water pumping plug 502 and a connecting pipe 503. The water pumping plug 502 is arranged on the ground and is provided with a valve as an interface for connecting external water equipment (such as a watering cart, etc.). The connecting pipe 503 is buried underground and is used to connect the water pumping plug 502 with a compensation hose 504 in the storage well 2. Figure 7 The compensation hose 504 is located in the storage well 2, one end of which is connected with the connecting pipe 503, and the other end is connected with a water immersion pipe 505. The compensation hose 504 can adapt to the height change of the limit floating ball 501 and the water immersion pipe 505 caused by the change of water level. The limit floating ball 501 floats on the water surface in the storage well 2, and the water immersion pipe 505 is arranged on the limit floating ball 501, the end of which is immersed below the water surface. A second counterweight 506 is arranged at the bottom end of the water immersion pipe 505, which functions to make the end of the water immersion pipe 505 always immersed below the water surface and maintain the downward direction.

[0034] Working principle: The limiting float 501 floats on the water surface of the water storage well 2. As the water level rises or falls, the limiting float 501 moves accordingly. Since the immersion pipe 505 is set on the limiting float 501, the immersion pipe 505 will follow the movement of the limiting float 501 and maintain its relative position with the water surface, always inserted a certain distance below the water surface. This ensures that water can be continuously pumped from below the water surface regardless of water level fluctuations. By setting the pumping position of the immersion pipe 505 a certain distance below the water surface, floating objects on the water surface in the water storage well 2 and settled solids at the bottom are avoided, ensuring that the pumped water has a low impurity content and meets the water quality requirements of external water-using equipment.

[0035] In some examples, such as Figure 7 As shown, the water-guiding core rod 6 is buried in a pre-designed underground installation channel. The installation channel is made of traditional building materials and is used to isolate the water-guiding core rod 6 from the underground soil, preventing direct contact between the two. The bottom end of the water-guiding core rod 6 can be inserted into the water storage well 2, and the top end can be inserted into the soil of the road greening ditch. The water-absorbing layer tightly covers the water-guiding core rod 6, has good water absorption, and can absorb the water in the water storage well 2 and guide it along the axial direction of the water-guiding core rod 6 to the top end.

[0036] Working principle: The bottom end of the water-guiding core rod 6 is inserted into the water in the water storage well 2. The tiny pores of the water-absorbing layer come into contact with the water. Due to capillary action, the water automatically enters the pores of the water-absorbing layer and moves upward along the water-guiding core rod 6. As the water is continuously absorbed and conducted, the water in the water storage well 2 is continuously guided to the top of the water-guiding core rod 6, and then enters the soil of the roadside greening ditch. The water is gradually released from the water-absorbing layer into the soil, which absorbs and stores this water. The plants absorb the water from the soil through their roots, thus irrigating the plants. This automatic water guiding and soil moisture replenishment process requires no additional power equipment or human intervention, utilizing natural principles to irrigate roadside greening with rainwater.

[0037] In some examples, such as Figure 7 As shown, an inspection well 7, connecting to the ground, is installed above the water storage well 2, and the opening of the inspection well 7 is equipped with a well cover. A filter bag 8 with an open top is installed inside the water storage well 2. The filter bag 8 is generally cone-shaped with a larger top and a smaller bottom, which facilitates the concentrated collection of impurities. The filter bag 8 is made of conventional filter materials available in the prior art. A pull rope 9 is connected to the top of the filter bag 8, extending from the top of the filter bag 8 to the top of the inspection well 7. The top of the pull rope 9 is designed with a loop for easy fixing to the top of the inspection well 7, facilitating fixing and pulling by operators.

[0038] In the support assembly 10, the center mounting disc 11 is arranged on the inner bottom surface of the filter bag 8, and serves as a mounting base for the horizontal rods 12 and the side rods 13. The horizontal rods 12 and the side rods 13 are arranged in groups, and one end of each horizontal rod 12 is hingedly connected to the outer periphery of the center mounting disc 11, and the other end is hingedly connected to the lower end of the side rod 13. The horizontal rods 12 and the side rods 13 are uniformly distributed in multiple groups along the circumferential direction of the center mounting disc 11, and are arranged on the inner surface of the filter bag 8, and serve to expand the filter bag 8. A first counterweight 14 is arranged at the hingedly connected end of the horizontal rod 12 and the side rod 13, and serves to provide a force for the horizontal rod 12 to approach the bottom wall of the water storage well 2, so that the horizontal rod 12 can smoothly swing down to contact the bottom wall when being put into the water storage well 2.

[0039] Working principle: During the rainwater collection process, as the water in the water storage well 2 is gradually pumped out, the floating and settled solid matters in the water will gradually concentrate at the bottom. Since the filter bag 8 is laid in the water storage well 2, most of these impurities will accumulate in the filter bag 8. When cleaning is needed, the manhole cover 7 is opened, and the filter bag 8 is pulled out of the water storage well 2 by pulling the pull rope 9 and folding the side rods 13 and the horizontal rods 12 together through the branch rope 901. During the upward lifting process, the water is filtered out, and only the impurities are left in the filter bag 8, so that the filter bag 8 can be taken out for cleaning. After cleaning is completed, the filter bag 8 is put back into the water storage well 2.

[0040] When the filter bag 8 is put back, the center mounting disc 11 first contacts the bottom wall of the water storage well 2, and then the horizontal rod 12 swings downward under the gravity of the first counterweight 14, with the hinged connection point of the center mounting disc 11 as the axis, until it contacts the bottom wall of the water storage well 2, and then the side rod 13 is also unfolded, and finally the top end of the side rod 13 abuts against the side wall of the water storage well 2. Through the action of the horizontal rods 12 and the side rods 13, the filter bag 8 is expanded in the water storage well 2, and returns to the conical state with a large top size and a small bottom size, so as to continue to collect impurities.

[0041] By arranging the manhole 7 and the filter bag 8, the filter bag 8 in the water storage well 2 can be conveniently and quickly cleaned, and the cleaning efficiency is improved. The support assembly 10 enables the filter bag 8 to automatically expand after being put back into the water storage well 2, and returns to the impurity collecting state, thereby improving the use convenience of the device.

[0042] In some examples, as Figure 3 and Figure 4As shown, due to the arc swing of the swing lever 301 around the hinge point, in order to ensure the connection and motion transmission between the swing lever 301 and the valve column 303, the valve column 303 is provided with a limiting column 3031, and the end of the swing lever 301 is provided with a sliding groove 3011, and the limiting column 3031 is slidingly matched in the sliding groove 3011. When the delay floating ball 302 drives the swing lever 301 to swing under the action of the buoyancy, the limiting column 3031 on the valve column 303 slides in the sliding groove 3011, so that the valve column 303 can swing and move with the swing lever 301, and the action of pulling out or inserting the valve column 303 from the connecting channel 4 is realized. A rainwater grate 15 is arranged at the top of the water collecting well 1, and the rainwater grate 15 is a grid structure, which can effectively filter out large debris such as branches and leaves, prevent them from entering the water collecting well 1, and ensure that rainwater can smoothly pass through and flow into the water collecting well 1.

[0043] In some examples, a rainwater collection and reuse processing method is also provided, using a rainwater collection and reuse processing device, including the following steps: S1 rainwater collection: after the water level in the water collecting well 1 reaches the suspension position of the delay floating ball 302, the delay floating ball 302 rises under the action of the rainwater buoyancy, drives the swing lever 301 to swing to move the valve column 303 out of the connecting channel, and then the rainwater in the water collecting well in the later stage of rainfall can flow to the water storage well 2, and the rainwater collection is performed; S2 rainwater reuse: the water in the water storage well 2 is pumped to an external water using equipment through the water pumping assembly 5, and / or the water in the water storage well 2 is guided to the soil of the road greening ditch through the water guiding core rod 6.

[0044] The rainwater is collected through the water collecting well 1 and the water storage well 2, and the water in the water storage well 2 is pumped to an external water using equipment (such as a watering cart) through the water pumping assembly 5, to meet the needs of road watering maintenance, greening irrigation, etc.; at the same time, the water in the water storage well 2 is guided to the soil of the road greening ditch through the water guiding core rod 6, to realize automatic irrigation of the road greening plants, improve the utilization efficiency of water resources, and relieve the dependence on traditional water resources. The water guiding core rod 6 slowly and continuously provides water to the soil of the road greening ditch, to meet the needs of water resources in different scenarios, and avoid waste of water resources.

[0045] It should be noted that the above examples are only used to illustrate the technical solutions of the present application, not to limit it. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the spirit and scope of the present application, which should be covered in the scope of the claims of the present application.

Claims

1. A rainwater harvesting and reuse treatment device, characterized in that, The system includes a water collection well (1), a water storage well (2), and a time-delayed water collection assembly (3). The water collection well (1) is located on one side of the road surface and is connected to the road drainage system. The water collection well (1) is used to collect rainwater on the road surface. The water storage well (2) is located underground. The water collection well (1) and the water storage well (2) are connected by a connecting channel (4). The time-delayed water collection assembly (3) includes a swing rod (301) hinged in the water collection well (1) and a time-delayed float (302) and a valve stem (303) respectively connected to the two ends of the swing rod (301). The time-delay water collection component (3) has a closed state and an open state; In the closed state, the time-delay float (302) is suspended in the water collection well (1), and the valve column (303) is inserted into and sealed at the port of the connecting channel (4) so ​​that the rainwater in the water collection well (1) flows to the road drainage system in the early stage of rainfall; When the water level in the collection well (1) rises in the open state, the delayed float (302) can drive the swing rod (301) to swing under the buoyancy of the rainwater, so that the valve column (303) can be moved out of the connection channel (4) and the connection channel (4) can be opened, thereby allowing the rainwater in the collection well (1) to flow to the storage well (2) in the middle and late stages of rainfall.

2. The rainwater harvesting and reuse treatment device according to claim 1, characterized in that, It also includes a pumping assembly (5), which includes a pumping hydrant (502), a connecting pipe (503), a compensating hose (504), a submersible tube (505), and a limiting float (501) connected in sequence. The pumping hydrant (502) is located on the ground and is used to connect to and supply water to external water-using equipment. The connecting pipe (503) is buried underground. The compensating hose (504) and the submersible tube (505) are located in the water storage well (2). The limiting float (501) is connected to the side of the submersible tube (505). The limiting float (501) is configured to drive the submersible tube (505) to rise and fall synchronously under the action of rainwater in the water storage well (2) and keep the end of the submersible tube (505) submerged below the water surface.

3. The rainwater harvesting and reuse treatment device according to claim 1, characterized in that, It also includes a water-conducting core rod (6) for burying underground. The water-conducting core rod (6) is covered with a water-absorbing layer. The top end of the water-conducting core rod (6) is used to insert into the soil of the road greening ditch, and the bottom end extends downward into the water storage well (2). The water-conducting core rod (6) can guide the water in the water storage well (2) to the soil of the road greening ditch with the help of the water-absorbing layer.

4. The rainwater harvesting and reuse treatment device according to claim 1, characterized in that, A manhole (7) connected to the ground is provided above the water storage well (2). A filter bag (8) for collecting sludge is laid inside the water storage well (2). The filter bag (8) has an upward-facing opening for collecting filter sludge. A pull rope (9) is connected to the top of the filter bag (8). The top of the pull rope (9) is fixed to the top of the manhole (7). The pull rope (9) is used to move the filter bag (8) upward to remove it from the water storage well (2) and the manhole (7).

5. A rainwater harvesting and reuse treatment device according to claim 4, characterized in that, The filter bag (8) is provided with a support assembly (10) for opening the filter bag (8). The support assembly (10) includes a central mounting plate (11) and several side supports distributed around the outer periphery of the central mounting plate (11). The central mounting plate (11) is located on the inner bottom surface of the filter bag (8). Each set of side supports includes a crossbar (12) and a side bar (13). One end of the crossbar (12) is hinged to the outer periphery of the central mounting plate (11) and connected to the inner bottom wall of the filter bag (8). The side bar (13) is connected to the inner wall of the filter bag (8) and is hinged to the other end of the crossbar (12). The lower end of the pull rope (9) is provided with a plurality of branch ropes (901) that correspond one-to-one with the side bars (13).

6. A rainwater harvesting and reuse treatment device according to claim 5, characterized in that, The first counterweight (14) is provided at one end of the crossbar (12) that is hinged to the side bar (13). The first counterweight (14) is used to provide force for the crossbar (12) to approach the bottom wall of the water storage well (2), press down and make the bottom wall of the sludge collection filter bag (8) fit against the inner bottom surface of the water storage well (2).

7. A rainwater harvesting and reuse treatment device according to claim 2, characterized in that, The bottom end of the immersion tube (505) is provided with a second counterweight (506), which is used to enable the end of the immersion tube (505) to be submerged below the water surface.

8. A rainwater harvesting and reuse treatment device according to claim 1, characterized in that, The valve stem (303) has a limiting post (3031) on its side and a sliding groove (3011) at the end of the swing rod (301). The limiting post (3031) is slidably fitted in the sliding groove (3011). When the swing rod (301) swings under the upward movement of the time-delay float (302), the limiting post (3031) can slide along the sliding groove (3011) and drive the valve stem (303) to disengage from the port of the connecting channel (4).

9. A rainwater harvesting and reuse treatment device according to claim 1, characterized in that, The top of the water collection well (1) is equipped with a rain grate (15).

10. A method for rainwater harvesting and reuse, comprising using a rainwater harvesting and reuse device as described in any one of claims 1-9, characterized in that, Includes the following steps: S1 Rainwater Collection: After the water level in the collection well (1) reaches the suspension point of the time-delayed float (302), the time-delayed float (302) rises under the action of rainwater buoyancy, causing the swing rod (301) to swing so that the valve column (303) moves out of the connecting channel (4), thereby enabling the rainwater in the collection well (1) during the middle and late stages of rainfall to flow to the storage well (2) for rainwater collection; S2 Rainwater Reuse: Water in the storage well (2) is pumped to external water-using equipment by the pumping assembly (5), and / or water in the storage well (2) is guided to the soil of the road greening ditch by the water guide core rod (6).

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