Rainwater collecting cellar with filtering function

Abstract

The utility model discloses a rainwater collecting cistern with a filtering function, which is characterized in that a filter element is inserted into a rainwater collecting surface, and a filtering object is arranged in the filter element; the top of the filter element communicates with the interior of the waterproof cover, and the bottom of the filter element communicates with the interior of the water filter pipe; the waterproof cover extends upwards from the rainwater collecting face, and a plurality of water inlet holes are formed in the outer side of the waterproof cover. The water filtering pipe extends downwards and is communicated with the interior of the settling cavity; a plurality of water outlet holes are formed in the top of the settling cavity and communicated with the interior of the water storage cavity, and a settling plate for sandy soil to adhere is arranged at the bottom of the settling cavity and corresponds to the water filter pipe in position. Rainwater flows into the filter element through the water inlet hole and is filtered by the filter object, primary impurity removal is realized, the filtered rainwater flows into the settling cavity through the water filter pipe, and sandy soil in the rainwater is attached to the settling plate, so that secondary impurity removal is realized; on the basis of the principle of communicating vessels, rainwater after impurity removal gradually rises in the settling cavity, clean rainwater located on the upper layer enters the water storage cavity through the water outlet holes, and the situation that stored water is turbid is effectively reduced.

Description

Technical Field

[0001] This utility model relates to the field of rainwater collection cellar technology, and in particular to a rainwater collection cellar with a filtration function. Background Technology

[0002] my country has a vast territory with significant east-west and north-south spans, resulting in extremely uneven distribution of water resources and substantial differences in rainfall. Therefore, in some remote mountainous or arid regions, irrigation for crops requires water collection ponds or pipelines. Rainwater harvesting cisterns, as a type of water storage device, effectively collect and store rainwater, alleviating water supply pressure. They offer advantages such as good seepage prevention, easy installation, and low cost. However, rainwater often contains impurities such as sand and leaves, which can easily cause turbidity in the stored water, necessitating the installation of filtration components to remove these impurities.

[0003] Patent No. ZL 202322459705.7 discloses a flexible water cellar water collection and filtration assembly. The filtration mechanism is connected to a water storage bag. The support cylinder has an internal mounting base and a support rod. A limiting rod and a filter ring are located on the outer wall of one end of the support cylinder. Baffles and collection trays are located at both ends of the support rod. The limiting rod, filter ring, and vertical rod block fallen leaves, preventing blockage of the pores. After rainwater enters the support cylinder, it is filtered through the filter holes, depositing sediment in the sedimentation tank and collection tray, preventing sediment from entering the water cellar. However, the solution mentioned in the patent can only block larger leaves and stones. Relying solely on the filter holes is insufficient to effectively remove sediment, easily leading to turbid water. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a rainwater collection cistern with a filtration function.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A rainwater collection cistern with a filtration function includes a water storage chamber, a rainwater collection surface covering the surface of the water storage chamber, and a filtration device disposed on the rainwater collection surface, characterized in that:

[0007] The filtration device includes a water-proof cover, a filter element, a filter pipe, and a settling chamber connected sequentially from top to bottom. The filter element is inserted into the rainwater collection surface and contains filter media inside. The top of the filter element is connected to the inside of the water-proof cover, and the bottom of the filter element is connected to the inside of the filter pipe. The water-proof cover extends upward from the rainwater collection surface and has several water inlets on its outer side. The filter pipe extends downward and is connected to the inside of the settling chamber. The top of the settling chamber has several water outlets that are connected to the inside of the water storage chamber. The bottom of the settling chamber has a settling plate for sand to adhere to, and the settling plate corresponds to the position of the filter pipe.

[0008] Preferably, the filter element has an outwardly extending flange ring at the top, and the water-proof cover has a pressure ring corresponding to the flange ring at the bottom. The water-proof cover is rotatably connected to the filter element, and the rain-collecting surface is clamped between the flange ring and the pressure ring.

[0009] Preferably, the flange ring surface is provided with an annular positioning groove, the pressing ring is embedded in the positioning groove, and the surface is flush with the rain collection surface.

[0010] Preferably, the filter element is located in the center of the rain collection surface, the rain collection surface slopes downwards towards the filter element, the settling chamber extends downwards to the bottom of the water storage chamber, and it is fixedly installed.

[0011] Preferably, the settling plates have a C-shaped structure, are arranged in concentric circles, extend upward from the bottom of the settling chamber, and are positioned relative to the bottom of the filter pipe, forming a settling trough between adjacent settling plates.

[0012] Preferably, the bottom of the settling chamber is provided with a water pumping pipe that communicates with the outside. One end of the water pumping pipe corresponds to the opening position of the settling plate, and the other end of the water pumping pipe is connected to a water pump.

[0013] Preferably, a pressure ring is sleeved on the outside of the filter pipe, the pressure ring is connected to the filter pipe in a lifting manner, the surface of the pressure ring is provided with a number of filter holes, and a filter screen to block sand and soil is provided below the filter holes.

[0014] Preferably, a limiting platform is provided inside the settling chamber, which is positioned below the water outlet and abuts against the outer side of the pressure ring.

[0015] Preferably, a stop platform is provided on the outside of the filter pipe, the stop platform is provided relative to the bottom of the filter pipe and abuts against the inside of the pressure ring.

[0016] This utility model has the following beneficial effects:

[0017] This invention incorporates a filtration device. During rainy weather, rainwater flows along the collection surface to the filtration device. A water-proof cover blocks debris such as leaves and clods of earth, preventing them from clogging the inlet holes. Rainwater flows into the filter element through the inlet holes, where the filter media removes impurities, achieving primary impurity removal. The filtered rainwater then flows into the settling chamber through the filter pipe, where sand and soil adhere to the settling plate, achieving secondary impurity removal. Based on the principle of communicating vessels, the clean rainwater gradually rises within the settling chamber, with the upper layer of clean rainwater entering the storage chamber through the outlet holes, effectively reducing turbidity in the stored water. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the rainwater collection cellar described in this utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the filtration device described in this utility model.

[0020] Figure 3 This is an assembly diagram of the filter device described in this utility model.

[0021] Figure 4 This is a schematic diagram of the settling chamber described in this utility model.

[0022] Figure 5 This is a schematic diagram of the structure of the filter element described in this utility model.

[0023] Attached diagram descriptions: 1. Water storage chamber; 2. Rain collection surface; 3. Waterproof cover; 4. Filter element; 5. Filter pipe; 6. Settling chamber; 7. Filter material; 8. Water inlet; 9. Water outlet; 10. Settling plate; 11. Flange ring; 12. Pressing ring; 13. Positioning groove; 14. Pumping pipe; 15. Pumping pump; 16. Pressure ring; 17. Filter hole; 18. Limiting platform; 19. Stop platform. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1 to 5 One embodiment provided by this utility model:

[0026] A rainwater collection cistern with filtration function includes a water storage chamber 1, a rainwater collection surface 2 covering the surface of the water storage chamber 1, and a filtration device disposed on the rainwater collection surface 2.

[0027] The filtration device includes a water-proof cover 3, a filter element 4, a water filter pipe 5, and a settling chamber 6 connected sequentially from top to bottom. The filter element 4 is inserted into the rainwater collection surface 2 and has filter material 7 inside. The top of the filter element 4 is connected to the inside of the water-proof cover 3, and the bottom of the filter element 4 is connected to the inside of the water filter pipe 5. The water-proof cover 3 extends upward from the rainwater collection surface 2 and has several water inlet holes 8 on its outer side. The water filter pipe 5 extends downward and is connected to the inside of the settling chamber 6. The top of the settling chamber 6 has several water outlet holes 9, which are connected to the inside of the water storage chamber 1. The bottom of the settling chamber 6 has a settling plate 10 for sand to adhere to, and the settling plate 10 is positioned corresponding to the water filter pipe 5.

[0028] The water storage chamber 1 is a cavity structure buried in a pit in the ground for storing rainwater. A rainwater collection surface 2 covers the surface of the water storage chamber 1, shielding its opening and serving to collect and seal rainwater. A filter device is installed on the rainwater collection surface 2, possibly located in the center. Rainwater flows from the rainwater collection surface 2 to the filter device, where it is filtered to remove impurities, ensuring the cleanliness of the stored water.

[0029] The water-proof cover 3, filter element 4, filter pipe 5, and settling chamber 6 are connected sequentially from top to bottom, and their interiors are interconnected. The water-proof cover 3 is located above the rainwater collection surface 2 and has an open box structure. Water inlet holes 8 are evenly distributed around the outside of the water-proof cover 3 to block leaves, soil clods, etc. The filter element 4 is located below the rainwater collection surface 2 and has a vertical through-hole. The rainwater collection surface 2 has a through-hole, and the filter element 4 is inserted into the through-hole. The water-proof cover 3 and the filter element 4 are rotatably connected, and the two clamp and fix the rainwater collection surface 2. The filter pipe 5 is located below the filter element 4 and has a long straight tube structure, extending vertically downward to the bottom of the settling chamber 6. The settling chamber 6 is located outside the filter pipe 5, forming a water passage between the settling chamber 6 and the filter pipe 5.

[0030] The filter element 4 contains filter media 7, which can be activated carbon, ceramsite, quartz sand, etc., to achieve primary impurity removal. The top of the filter element 4 is connected to the interior of the water-proof cover 3, and rainwater flows into the filter element 4 through the inlet hole 8. The bottom of the filter element 4 is connected to the interior of the water filter pipe 5, and the filtered rainwater flows into the settling chamber 6 through the water filter pipe 5. The settling plates 10 are located at the bottom of the settling chamber 6, near the end of the water filter pipe 5, and are distributed in multiple layers with gaps between adjacent settling plates 10 to allow sand mixed in the rainwater to adhere, facilitating the separation of rainwater and sand, and achieving secondary impurity removal. The outlet holes 9 are located at the top of the settling chamber 6, evenly distributed around the outside of the settling chamber 6, and are connected to the interior of the water storage chamber 1. The impurity-removed rainwater flows into the water storage chamber 1 through the outlet holes 9.

[0031] This invention incorporates a filtration device. When it rains, rainwater flows along the collection surface 2 to the filtration device. The water-proof cover 3 blocks debris such as leaves and soil, preventing them from clogging the inlet hole 8. Rainwater flows into the filter element 4 through the inlet hole 8, where the filter material 7 filters the rainwater, achieving primary impurity removal. The filtered rainwater then flows into the settling chamber 6 through the filter pipe 5, where sand and soil adhere to the settling plate 10, achieving secondary impurity removal. Based on the principle of communicating vessels, the impurity-removed rainwater gradually rises within the settling chamber 6. The clean rainwater at the top enters the storage chamber 1 through the outlet hole 9, effectively reducing the turbidity of the stored water.

[0032] In this embodiment, preferably, the top of the filter element 4 is provided with an outwardly extending flange ring 11, and the bottom of the water-proof cover 3 is provided with a pressing ring 12 corresponding to the flange ring 11. The water-proof cover 3 is rotatably connected to the filter element 4, and the rain-collecting surface 2 is clamped between the flange ring 11 and the pressing ring 12.

[0033] The flange ring 11 is located at the top of the filter element 4, and has a circular structure that extends outwards to fit against the bottom surface of the rain collection surface 2. The compression ring 12 is located at the bottom of the water-proof cover 3, and is matched with the flange ring 11 to fit against the surface of the rain collection surface 2. The water-proof cover 3 is rotatably connected to the filter element 4, and the flange ring 11 and the compression ring 12 gradually approach each other until they clamp the rain collection surface 2, achieving a clamping and fixing effect.

[0034] In this embodiment, preferably, the flange ring 11 has an annular positioning groove 13 on its surface, and the pressing ring 12 is embedded in the positioning groove 13, with its surface flush with the rain collection surface 2.

[0035] The positioning groove 13 is the surface of the flange ring 11, and has a circular structure, which is matched with the pressing ring 12. The water-proof cover 3 is rotatably connected to the filter element 4. The pressing ring 12 is embedded in the positioning groove 13, pressing the rain collection surface 2 into the positioning groove 13, ensuring that the pressing ring 12 is flush with the surface of the rain collection surface 2, which is conducive to rainwater flowing into the filter element along the rain collection surface 2.

[0036] In this embodiment, preferably, the filter element 4 is located in the center of the rain collection surface 2, the rain collection surface 2 is inclined downwards towards the filter element 4, and the sedimentation chamber 6 extends downwards to the bottom of the water storage chamber 1 and is fixedly installed.

[0037] The filter element 4 is located in the center of the rainwater collection surface 2. The rainwater collection surface 2 slopes downwards towards the filter element 4 to guide rainwater and prevent water accumulation due to unevenness. The settling chamber 6 extends downwards to the bottom of the water storage chamber 1 and is fixedly installed, either at the bottom of the pit or to provide support for the rainwater collection surface 2. This also increases the internal space of the settling chamber 6, facilitating the separation of rainwater and sand.

[0038] In this embodiment, preferably, the settling plate 10 has a C-shaped structure, is arranged in concentric circles, extends upward from the bottom of the settling chamber 6, and is positioned below the filter pipe 5, with a settling trough formed between adjacent settling plates 10.

[0039] Settlement plates 10 are located at the bottom of the settling chamber 6 and extend vertically upwards. The settlement plates 10 have a C-shaped structure and are arranged concentrically, forming settling troughs between adjacent plates. The settlement plates 10 are positioned below the filter pipe 5, with a certain distance between them and the end of the filter pipe 5 to prevent rainwater from directly washing over the settlement plates 10 and stirring up sand. The settlement plates 10 are arranged in multiple layers, allowing sand in the rainwater to easily adhere to the settling troughs. The small spacing and slight curvature of the settlement plates 10 prevent sand from floating upwards, thus achieving sand settling and rainwater separation.

[0040] In this embodiment, preferably, the bottom of the settling chamber 6 is provided with a water pumping pipe 14 that communicates with the outside. One end of the water pumping pipe 14 corresponds to the opening position of the settling plate 10, and the other end of the water pumping pipe 14 is connected to a water pump 15.

[0041] The water pump 14 is located at the bottom of the settling chamber 6, inserted into the side wall of the settling chamber 6, and connected to the outside. The openings of multiple settling plates 10 all face the same direction, corresponding to one end of the water pump 14, facilitating the removal of sand from the settling tank. The water pump 15 is connected to the other end of the water pump 14. After the filtration device has been used for a period of time, if there is a large amount of sand at the bottom of the settling chamber 6, starting the water pump 15 will discharge the sand from the settling tank to the outside through the water pump 14, achieving a rapid sewage discharge effect.

[0042] In this embodiment, preferably, a pressure ring 16 is sleeved on the outside of the filter pipe 5. The pressure ring 16 is connected to the filter pipe 5 in a lifting and lowering manner. The surface of the pressure ring 16 is provided with a plurality of filter holes 17, and a filter screen for blocking sand and soil is provided below the filter holes 17.

[0043] A pressure ring 16 is fitted onto the outside of the filter pipe 5, forming a circular structure. The pressure ring 16 moves up and down relative to the filter pipe 5 and the settling chamber 6. Several filter holes 17 are evenly distributed on the surface of the pressure ring 16, forming a through-hole structure. A filter screen is located below the filter holes 17 to block sand and soil. After rainwater flows into the settling chamber 6 through the filter pipe 5, the pressure ring 16 buffers the rising rainwater, preventing the rainwater flow from being too fast and stirring up the sand and soil at the bottom of the settling chamber 6. Simultaneously, it filters the rainwater again, retaining as much sand and soil as possible within the settling chamber 6.

[0044] In this embodiment, preferably, a limiting platform 18 is provided inside the settling chamber 6. The limiting platform 18 is positioned below the water outlet 9 and abuts against the outer side of the pressure ring 16.

[0045] The limiting platform 18 is located inside the settling chamber 6 and has a circular structure. It is set below the water outlet 9. After the water pressure ring 16 rises with the rainwater, the limiting platform 18 abuts against the outside of the water pressure ring 16 to limit the water pressure ring 16 and ensure that the rainwater enters the water storage chamber 1 through the filter hole 17 and the water outlet 9 in sequence.

[0046] In this embodiment, preferably, a stop platform 19 is provided on the outside of the filter pipe 5. The stop platform 19 is provided relative to the bottom of the filter pipe 5 and abuts against the inside of the pressure ring 16.

[0047] The stop platform 19 is located outside the filter pipe 5 and has a circular structure. It is set relative to the bottom of the filter pipe 5. After the pressure ring 16 descends with the rainwater, the stop platform 19 abuts against the inner side of the pressure ring 16 to limit the pressure ring 16 and prevent the pressure ring 16 from falling off the filter pipe 5.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A rainwater collection cistern with a filtration function, comprising a water storage chamber, a rainwater collection surface covering the surface of the water storage chamber, and a filtration device disposed on the rainwater collection surface, characterized in that: The filtration device includes a water-proof cover, a filter element, a filter pipe, and a settling chamber connected sequentially from top to bottom. The filter element is inserted into the rainwater collection surface and contains filter media inside. The top of the filter element is connected to the inside of the water-proof cover, and the bottom of the filter element is connected to the inside of the filter pipe. The water-proof cover extends upward from the rainwater collection surface and has several water inlets on its outer side. The filter pipe extends downward and is connected to the inside of the settling chamber. The top of the settling chamber has several water outlets that are connected to the inside of the water storage chamber. The bottom of the settling chamber has a settling plate for sand to adhere to, and the settling plate corresponds to the position of the filter pipe.

2. The rainwater collection cisterns with filtration function according to claim 1, characterized in that: The filter element is provided with an outwardly extending flange ring at the top, and the bottom of the water-proof cover is provided with a pressing ring corresponding to the flange ring. The water-proof cover is rotatably connected to the filter element, and the rain-collecting surface is clamped between the flange ring and the pressing ring.

3. The rainwater collection cisterns with filtration function according to claim 2, characterized in that: The flange ring surface is provided with an annular positioning groove, and the pressing ring is embedded in the positioning groove, with its surface flush with the rain collection surface.

4. A rainwater collection cistern with filtration function according to claim 3, characterized in that: The filter element is located in the center of the rain collection surface, and the rain collection surface slopes downwards towards the filter element. The settling chamber extends downwards to the bottom of the water storage chamber and is fixedly installed.

5. A rainwater collection cistern with filtration function according to claim 1, characterized in that: The settling plates have a C-shaped structure, are arranged in concentric circles, extend upward from the bottom of the settling chamber, and are positioned below the filter pipe, forming a settling trough between adjacent settling plates.

6. A rainwater collection cistern with filtration function according to claim 5, characterized in that: The bottom of the settling chamber is equipped with a water pump that communicates with the outside. One end of the water pump corresponds to the opening of the settling plate, and the other end of the water pump is connected to a water pump.

7. A rainwater collection cistern with filtration function according to claim 1, characterized in that: A pressure ring is fitted around the outside of the filter pipe. The pressure ring is connected to the filter pipe in a lifting manner. The surface of the pressure ring is provided with several filter holes, and a filter screen is provided below the filter holes to block sand and soil.

8. A rainwater collection cistern with filtration function according to claim 6, characterized in that: The settling chamber is provided with a limiting platform on the inner side, which is positioned below the water outlet and abuts against the outer side of the pressure ring.

9. A rainwater collection cistern with a filtration function according to claim 7, characterized in that: The filter pipe is provided with a stop platform on the outside, which is set relative to the bottom of the filter pipe and abuts against the inside of the pressure ring.

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