Rainwater collecting and filtering device for building

Abstract

The utility model provides a rainwater collecting and filtering device for building, and particularly relates to the technical field of filtering equipment, the rainwater collecting and filtering device comprises an outer ring body and an inner ring body, a closed bottom cover is arranged between the inner ring body and the outer ring body, a conical first filter screen is arranged between the outer ring body and the inner ring body, an extension ring is arranged above the inner side of the outer ring body, and the extension ring is connected with the inner ring body. A second filter screen is arranged between the outer ring body and the inner ring body and located below the first filter screen, a plurality of water outlets are formed in the lower end face of the inner side of the inner ring body in a penetrating mode, and a blocking piece used for blocking large particles is connected to the outer portion of the inner ring body; the extension ring is arranged, so that the falling position of rainwater is located in the middle of the first filter screen and the conical head, the extension ring is matched with the conical first filter screen, impurities in the rainwater can be further filtered, and the filtered impurities can gradually move to the two sides of the first filter screen; therefore, the middle part of the first filter screen is always in a circulating state.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a rainwater collection and filtering device for buildings. Background Art

[0002] At present, the shortage of water resources has become a non-negligible factor restricting the sustainable development of human social economy. Whether it is urban planning or rural planning, the floor area ratio of houses is extremely high. When it is necessary to collect and utilize the rainwater on the building roof, drain pipes are usually used to collect the rainwater and transport the collected rainwater into the water storage equipment;

[0003] When using drain pipes to collect rainwater, people usually add filtering equipment in the drain pipes to filter the impurities in the rainwater, so as to ensure the cleanliness of the collected rainwater;

[0004] Existing ones, such as the patent with the publication number of CN211898846U, discloses a rainwater collection device for building houses, including a rainwater main pipe, a rainwater intercepting and sewage tank, and a rainwater runoff diversion tank. One end of the rainwater main pipe is provided with the rainwater intercepting and sewage tank, one side of the rainwater intercepting and sewage tank is provided with the rainwater runoff diversion tank, and a rainwater automatic filtering tank is provided on the side of the rainwater runoff diversion tank away from the rainwater intercepting and sewage tank. A stainless steel filter screen basket is arranged inside the rainwater intercepting and sewage tank, a handle is rotatably connected to the upper end of the stainless steel filter screen basket, the upper end of the rainwater intercepting and sewage tank is connected with a tank cover through a clamping groove, an umbrella-shaped diversion block is arranged inside the rainwater automatic filtering tank, a water accumulation ring network is arranged below the umbrella-shaped diversion block, and a filtering ring network is arranged above the water accumulation ring network; By setting the tank cover, the stainless steel filter screen basket and the handle, when cleaning the sundries in the intercepting and sewage device, the tank cover is opened, and the stainless steel filter screen basket is directly taken out for cleaning through the handle, which simplifies the cleaning steps and ensures the cleaning efficiency of the sundries;

[0005] However, when the dry filtering device is directly arranged in the pipeline, a large amount of dust and leaves will easily cover the filter screen, resulting in the generation of pipeline blockage. This not only increases the cleaning frequency of the filtering equipment by personnel, but also increases the rainwater collection time. At the same time, the blocked pipeline is easy to cause the accumulation of roof rainwater, which will affect the quality of the roof to a certain extent. At the same time, the filtering device arranged in the pipeline needs to be lifted manually, and the service time is relatively long.

[0006] Therefore, it is necessary to design a rainwater collection and filtering device that is convenient for staff to clean the filtering equipment and is not easy to cause pipeline blockage. Utility Model Content

[0007] In order to solve the above problems, the utility model proposes a rainwater collection and filtering device for buildings to more precisely solve the above problems.

[0008] The utility model is realized by the following technical solutions:

[0009] The utility model provides a rainwater collection and filtration device for buildings, which includes an outer ring body and an inner ring body. A closed bottom cover is arranged between the inner ring body and the outer ring body. A first filter screen is arranged between the outer ring body and the inner ring body. The first filter screen is arranged in a conical shape. An extension ring is arranged above the inner side of the outer ring body. A second filter screen is arranged between the outer ring body and the inner ring body and below the first filter screen. A plurality of drainage ports are arranged through the lower end face of the inner side of the inner ring body. A blocking member for blocking large particles is connected to the outside of the inner ring body.

[0010] Further, the blocking member includes a plurality of rod bodies connected to the outer ring body, a ring body connected to the other ends of the plurality of rod bodies, and a plurality of through holes formed in the ring body for rainwater to pass through.

[0011] Further, the bottom of the ring body is on the same straight line as the top of the outer ring body.

[0012] Further, the height of the inner ring body is greater than the height of the outer ring body.

[0013] Further, a plurality of installation tracks are formed on the inner sides of the outer ring body and the inner ring body. Installation blocks are arranged on both sides of the first filter screen and are matched with the plurality of installation tracks.

[0014] Further, a cover body is arranged on the inner ring body.

[0015] Further, a plurality of clamping blocks engaged with the installation tracks are arranged at the bottom of the extension ring.

[0016] The beneficial effects of the utility model:

[0017] By arranging a filtering device outside the pipeline and adopting a multi-layer filter screen, not only can the generation of pipeline blockage be effectively prevented, but also the water quality after rainwater collection can be guaranteed. At the same time, compared with the filtering device arranged inside the pipeline, the filtering device arranged outside the pipeline can not only facilitate the staff to clean the filtered impurities, but also ensure the cleanliness of the inner wall of the pipeline itself.

[0018] The setting of the extension ring can make the position where the rainwater drops be the middle part of the first filter screen, and the conical head. The cooperation between the extension ring and the first filter screen arranged in a conical shape can further filter the impurities in the rainwater, and the filtered impurities will gradually move to both sides of the first filter screen, so that the middle part of the first filter screen is always in a state of being able to flow, increasing the service life of the first filter screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the overall structural schematic diagram of the present utility model;

[0020] Figure 2 is the sectional structural schematic diagram of the outer ring body and the inner ring body of the present utility model;

[0021] Figure 3 is the structural schematic diagram of the outer ring body and the inner ring body of the present utility model;

[0022] Figure 4 is the structural schematic diagram of the extension ring of the present utility model;

[0023] Figure 5 is the structural schematic diagram of the first filter screen of the present utility model;

[0024] Figure 6 is the overall installation structural schematic diagram of the present utility model.

[0025] In the figure, 1. outer ring body; 11. installation track; 2. inner ring body; 21. drain port; 22. cover body; 23. extension ring; 231. clamping block; 3. closed bottom cover; 4. first filter screen; 41. installation block; 5. second filter screen; 6. barrier member; 61. rod body; 62. annular body; 63. through hole; 7. pipeline; 8. wall body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Embodiment

[0028] Reference Figure 1-6, A rainwater collection and filtration device for buildings, comprising an outer ring body 1 and an inner ring body 2. A closed bottom cover 3 is arranged between the inner ring body 2 and the outer ring body 1. A first filter screen 4 is arranged between the outer ring body 1 and the inner ring body 2. The first filter screen 4 is arranged in a conical shape. An extension ring 23 is arranged above the inner side of the outer ring body 1. Between the outer ring body 1 and the inner ring body 2, and below the first filter screen 4, a second filter screen 5 is arranged. A plurality of drain ports 21 are arranged through the lower end face of the inner side of the inner ring body 2. An obstruction member 6 for blocking large particles is connected to the outside of the inner ring body 2;

[0029] The arrangement of the obstruction member 6 can block larger items such as leaves and stones in the rainwater. After being blocked, the rainwater will enter between the outer ring body 1 and the inner ring body 2 and come into contact with the first filter screen 4. Among them, the arrangement of the extension ring 23 can make the position where the rainwater drops be the middle part of the first filter screen 4, that is, the conical head. The cooperation between the extension ring 23 and the conically arranged first filter screen 4 can further filter the impurities in the rainwater. The filtered impurities will gradually move to both sides of the first filter screen 4, so that the middle part of the first filter screen 4 is always in a flowable state, increasing the service life of the first filter screen 4. The content of impurities in the rainwater will be reduced after being filtered by the first filter screen 4. Finally, it will be finally filtered at the second filter screen 5 and flow into the pipeline 7 through the drain ports 21;

[0030] In this embodiment, the extension ring 23 is arranged in an inclined manner. The advantage of arranging the extension ring 23 in an inclined manner is that it can increase the flow rate of the rainwater, thus ensuring the progress of the rainwater filtration work;

[0031] In this embodiment, the aperture of the second filter screen 5 is smaller than the aperture of the first filter screen 4.

[0032] Preferably, refer to Figure 1 , The obstruction member 6 includes a plurality of rod bodies 61 connected to the outer ring body 1, a ring body 62 connected to the other ends of the plurality of rod bodies 61, and a plurality of through holes 63 opened on the ring body 62 and used for the rainwater to pass through; The arrangement of the through holes 63 can be used for the rainwater to flow through and can also block larger particulate matters, thus preventing the particulate matters from entering the first filter screen 4 and avoiding the occurrence of the blockage phenomenon of the first filter screen 4;

[0033] In this embodiment, the arrangement of the ring body 62 can wrap the outer ring body 1, thereby increasing the range of particulate matter blocking.

[0034] Preferably, the bottom of the ring body 62 is on the same straight line as the top of the outer ring body 1.

[0035] Preferably, the height of the inner ring body 2 is greater than the height of the outer ring body 1.

[0036] Preferably, referring to Figure 3 , a plurality of installation tracks 11 are provided on the inner sides of the outer ring body 1 and the inner ring body 2, and installation blocks 41 that cooperate with the plurality of installation tracks 11 are provided on both sides of the first filter screen 4; the provision of the installation tracks 11 and the installation blocks 41 can facilitate the installation and disassembly of the first filter screen 4 by the staff, so as to facilitate the staff to clean the first filter screen 4 and the second filter screen 5 regularly.

[0037] Preferably, a cover body 22 is provided on the inner ring body 2; the provision of the cover body 22 can seal the inner ring body 2, so as to achieve the sealing of the pipeline 7 and prevent impurities from entering the pipeline 7 during the use and placement of the pipeline 7.

[0038] Preferably, referring to Figure 5 , a plurality of clamping blocks 231 that are engaged with the installation tracks 11 are provided at the bottom of the extension ring 23; the provision of the clamping blocks 231 can be engaged with the installation tracks 11, so as to achieve the installation of the extension ring 23, and the provision of the extension ring 23 can guide the flow direction of rainwater.

[0039] Working principle: Referring to Figure 6, first, the staff installs the device in the wall body 8 and connects the inner ring body 2 with the pipeline 7, then installs the barrier member 6 and makes the bottom of the annular body 62 contact the top of the wall body 8. When it rains, the rainwater will fall to the bottom of the house. Since the drain pipe is installed at a lower position, the rainwater will flow towards the drain pipe. The flowing rainwater will first contact the annular body 62 and flow through the through holes 63 to the extension ring 23, and then fall to the middle of the first filter screen 4 through the guidance of the extension ring 23, and finally flow to the second filter screen 5 for final filtration. The filtered rainwater will enter the pipeline 7 through the drain holes and flow to the external water storage device through the pipeline 7. By setting a filtering device outside the pipeline 7 and using a multi-layer filter screen, not only can the generation of pipeline 7 blockage be effectively prevented, but also the water quality after rainwater collection can be guaranteed; at the same time, compared with the filtering device provided inside the pipeline 7, the filtering device provided outside the pipeline 7 can not only facilitate the staff to clean the filtered impurities, but also ensure the cleanliness of the inner wall of the pipeline 7 itself.

[0040] Of course, the present utility model can also have other various implementation manners. Based on this implementation manner, other implementation manners obtained by those of ordinary skill in the art without any creative work belong to the scope protected by the present utility model.

Claims

1. A rainwater collection and filtration device for buildings, characterized in that: It includes an outer ring body and an inner ring body, a closed bottom cover is arranged between the inner ring body and the outer ring body, a first filter screen is arranged between the outer ring body and the inner ring body, the first filter screen is arranged in a conical shape, an extension ring is arranged on the upper inner side of the outer ring body, a second filter screen is arranged between the outer ring body and the inner ring body and below the first filter screen, a plurality of drain outlets are penetrated on the inner lower end surface of the inner ring body, and a barrier member for blocking large particles is connected to the outside of the inner ring body.

2. A rainwater collection and filtration device for buildings according to claim 1, characterized in that: The blocking member comprises a plurality of rod bodies connected to the outer ring body, a ring body connected to the other ends of the plurality of rod bodies, and a plurality of through holes opened on the ring body and used for rainwater to pass through.

3. A rainwater collection and filtration device for buildings according to claim 2, characterized in that: The bottom of the annular body and the top of the outer annular body are on the same straight line.

4. A rainwater collection and filtration device for buildings according to claim 1, characterized in that: The height of the inner ring body is greater than the height of the outer ring body.

5. A rainwater collection and filtration device for buildings according to claim 1, characterized in that: A plurality of mounting tracks are provided on the inner sides of the outer ring body and the inner ring body, and mounting blocks matching with the plurality of mounting tracks are provided on both sides of the first filter screen.

6. A rainwater collection and filtration device for buildings according to claim 1, characterized in that: A cover body is arranged on the inner ring body.

7. A rainwater collection and filtration device for buildings according to claim 5, characterized in that: The bottom of the extension ring is provided with a plurality of blocks which are engaged with the installation track.

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