Energy-saving building water supply and drainage device with rainwater collection and utilization functions

Abstract

The invention belongs to the technical field of water supply and drainage devices, and discloses an energy-saving building water supply and drainage device with rainwater collection and utilization, one end of a treatment box is connected with a rainwater collection pipe and a kitchen wastewater collection pipe, the other end of the treatment box is connected with a drainage pipe, and a water collection tank is fixed on the inner wall of one end of the treatment box; a water outlet pipe is arranged at the lower end of the water collecting tank, and a water wheel is rotationally connected below the water outlet pipe; a central shaft of the water wheel is rotationally connected with the treatment box; a guide plate is arranged below the water wheel, a water outlet cavity is arranged between the guide plate and the inner bottom surface of the treatment box, and the drainage pipe is communicated with the water outlet cavity; a first filter screen is arranged at the other end of the flow guide plate, a brush is installed on the center shaft, and brush avoiding openings are formed in the portions, on the two sides of the brush, of the water flow partition plate; filter screen frames are placed in the areas on the two sides, and impurity inlets corresponding to the brush avoiding openings are formed in one sides of the filter screen frames. Impurities cleaned by the device are convenient to clean.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of water supply and drainage devices, and particularly relates to an energy-saving building water supply and drainage device with rainwater collection and utilization. BACKGROUND

[0002] The water supply and drainage system is a general term for water supply and wastewater discharge facilities for people's life, production, municipal administration and fire protection. The water supply and drainage system is an important component indispensable to any building. The drainage system of a building mainly includes rainwater, air conditioning water, and life sewage systems pipelines. The drainage pipeline can ensure that sewage can be conveniently discharged, effectively ensuring the quality of people's daily life.

[0003] According to the literature, a building water supply and drainage device is known. In the technical scheme, a drainage device, a pollution collection tank, a drainage pipe, a water inlet pipe, a sewage tank, and a filter screen are used in cooperation to solve the problem that most modern decoration drainage pipes are of the wall-embedded type, and when the pipelines are connected, two adjacent pipelines are fixed by welding. The technical scheme does not have the capability of automatically cleaning the filter screen, so foreign matter can easily block the filter holes of the filter screen, thereby affecting the normal filtration of the equipment on the sewage. In addition, manual cleaning is required at regular intervals, thereby increasing the labor intensity of the operators.

[0004] In view of the above problems, the prior art with publication number CN216713264U provides an energy-saving building water supply and drainage device. The device includes a treatment box, a sealing cover is arranged on the treatment box, a drainage pipe is fixedly connected to the right side of the treatment box and communicates with the inside of the treatment box, a rainwater collection pipe and a kitchen wastewater collection pipe are fixedly connected to the right side of the treatment box, a partition plate is fixedly connected to the inside of the treatment box, a water passing hole is formed in the partition plate, the inside of the treatment box is divided into a left cavity and a right cavity by the partition plate, a filter screen in the shape of an arc-shaped semicircle is fixedly connected to the inside of the left cavity of the treatment box, a filter screen cleaning mechanism is arranged in the treatment box, the rainwater collection pipe communicates with an external rainwater discharge device, and the kitchen wastewater collection pipe communicates with a kitchen wastewater discharge pipe.

[0005] Although the filter screen cleaning mechanism can clean the impurities in the middle region of the surface of the filter screen, the impurities are cleaned to the two side regions where the brush cannot contact. In actual use, the impurities will accumulate more and more in the two side regions of the filter screen. If the impurities in the two side regions are required to be cleaned, the operator needs to clean the impurities on the surface of the filter screen one by one by hand, which is actually more troublesome, low in efficiency, and not clean. SUMMARY

[0006] The application aims to provide an energy-saving building water supply and drainage device with rainwater collection and utilization to solve the above problems in the prior art.

[0007] To achieve the above-mentioned purpose, the application adopts the following technical solutions.

[0008] The energy-saving building water supply and drainage device with rainwater collection and utilization comprises a treatment box, the upper end of the treatment box is provided with a sealing cover, one end of the treatment box is connected with a rainwater collection pipe and a kitchen wastewater collection pipe, the other end of the treatment box is connected with a drainage pipe, two vertically arranged water flow separation plates are arranged in the treatment box, the two water flow separation plates divide the internal space of the treatment box into a middle region and two side regions, a water collecting tank is fixed to the inner wall of one end of the treatment box corresponding to the middle region, the rainwater collection pipe and the kitchen wastewater collection pipe are both communicated with the water collecting tank, a water outlet pipe is arranged at the lower end of the water collecting tank, a water wheel is rotatably connected to the treatment box below the water outlet pipe, and the water wheel is impacted on one side by the water flowing out of the water outlet pipe and is driven to rotate unidirectionally; the central shaft of the water wheel is rotatably connected to the two ends of the treatment box; a flow guide plate gradually decreasing in height from one end of the treatment box to the other end is arranged below the water wheel, a water outlet cavity is arranged between the flow guide plate and the bottom surface of the treatment box, and the drainage pipe is communicated with the water outlet cavity; the other end of the flow guide plate is provided with a first filter screen communicated between the upper and lower flow guide plates, at least one brush for cleaning impurities on the first filter screen is installed on the central shaft above the first filter screen, brush avoiding openings are formed in the water flow separation plates on both sides of the brush, and the brush avoiding openings facilitate the brush to clean the impurities in the middle region to the two side regions; a filter screen frame is placed in the two side regions, and an impurity inlet corresponding to the brush avoiding opening is formed in one side of the filter screen frame.

[0009] As a preferred technical solution in the application, the water wheel comprises a first hollow cylindrical barrel and a plurality of fan blades uniformly distributed outside the first hollow cylindrical barrel, the first hollow cylindrical barrel is integrally connected to the central shaft, and the water outlet pipe is aligned with the fan blades on one side of the first hollow cylindrical barrel.

[0010] As a preferred technical solution in the application, the central shaft is a hollow circular pipe, the two ends of the central shaft are rotatably connected to the treatment box through bearings, a second hollow sleeve is integrally connected outside the central shaft above the first filter screen, and at least one brush is connected outside the second hollow sleeve.

[0011] As a preferred technical solution in the application, the first filter screen is located in the middle of the width direction of the flow guide plate, and the flow guide plates on both sides of the first filter screen are arc-shaped plates gradually decreasing in height from the middle to both sides.

[0012] As a preferred technical solution in the application, the flow guide plate comprises an inclined plate close to one end of the treatment box and a horizontal plate close to the other end of the treatment box, the height of the inclined plate gradually decreases from one end away from the horizontal plate to the other end, and the first filter screen is located in the middle of the horizontal plate.

[0013] As one preferred technical scheme in the present application, the filter screen frame comprises four rectangular frames connected at their ends and a second filter screen installed at the bottom of the rectangular frame, and the impurity inlet is located at one side of the rectangular frame close to the brush avoiding port.

[0014] As one preferred technical scheme in the present application, a first annular sealing ring is installed on the rectangular frame outside the impurity inlet, a first annular groove is formed on the side of the rectangular frame facing the water flow partition plate, the cross section of the first annular groove is a superior arc-shaped groove, and one side of the first annular sealing ring is matched and installed in the first annular groove.

[0015] As one preferred technical scheme in the present application, the other end of the treatment box corresponding to the water outlet cavity is open, so that the water outlet cavity at the other end of the treatment box forms a drawer port, a water quality treatment drawer is slidably connected in the drawer port, the edge of the water quality treatment drawer is sealed with the treatment box through a sealing strip, a water quality treatment layer is installed on the upper part of the water quality treatment drawer, and a drain pipe is connected to the inside of the water quality treatment drawer below the water quality treatment layer.

[0016] As one preferred technical scheme in the present application, an annular placement step extending outward is arranged on the inner wall of the upper end of the water quality treatment drawer, the water quality treatment layer is placed in the annular placement step, and the water quality treatment layer comprises an activated carbon filter layer; the activated carbon filter layer comprises a water filter frame with an open upper end and a plurality of through holes arranged at the lower end, and activated carbon particles are arranged in the water filter frame; an annular groove is arranged at the edge of the upper end of the water quality treatment drawer, and a second annular sealing ring is installed in the annular groove.

[0017] As one preferred technical scheme in the present application, the upper end of the water collecting tank is provided with a cover plate, one end of the water collecting tank away from the rainwater collecting pipe and the kitchen wastewater collecting pipe is rotatably connected with an adjusting rod, one end of the adjusting rod is connected with a valve core, a water flow hole is arranged on the valve core, the lower end of the water flow hole is in communication with the upper end of the water outlet pipe, and the upper end of the water flow hole is in communication with the inner bottom surface of the water collecting tank.

[0018] Beneficial effects: the application can make the rainwater enter the water collecting tank along the rainwater collecting pipe, and the kitchen wastewater enter the water collecting tank along the kitchen wastewater collecting pipe when it rains and the kitchen is used, then make the water in the water collecting tank flow out from the water outlet pipe, the water flowing out from the water outlet pipe impacts on one side of the water wheel, so that the water wheel can rotate in one direction, the rotation of the water wheel can drive the central shaft to rotate, and the rotation of the central shaft can drive the brush to rotate; the water flowing to the guide plate flows from one end to the other end, is filtered at the first filter screen and then enters the water outlet cavity, and then is discharged from the drain pipe, so that the wastewater can be recycled and the waste of water resources is reduced; meanwhile, the impurities concentrated on the first filter screen can be cleaned by the brush and then enter the filter screen frame in the two side areas, and then are concentrated in the filter screen frame, so that the filter screen frame can be taken out and cleaned when it does not rain and the kitchen is not used, so that the cleaning of the impurities is simpler and more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic view of the application from the side section view;

[0020] Figure 2 It is a schematic view of the application from the other end section view;

[0021] Figure 3 It is a section view of the water quality treatment drawer in the application.

[0022] In the drawing: 1-treatment tank; 2-sealing cover; 3-rainwater collecting pipe; 4-kitchen wastewater collecting pipe; 5-drain pipe; 6-water flow separation plate; 7-water collecting tank; 8-water outlet pipe; 9-water wheel; 10-central shaft; 11-first filter screen; 12-brush; 13-filter screen frame; 14-water quality treatment drawer; 15-filtering water frame; 16-activated carbon particles. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the application will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the drawings structure is only some embodiments of the application, and for those skilled in the art, other drawings can be obtained without creative labor. It should be noted that the description of these embodiments is used to help understand the application, but does not constitute a limitation on the application.

[0024] Embodiment:

[0025] As Figure 1 , Figure 2 and Figure 3As shown, the embodiment provides a kind of energy-saving building water supply and drainage device with rainwater collection and utilization, including processing box 1, the upper end of processing box 1 is provided with sealing cover 2, one end of processing box 1 is connected with rainwater collection pipe 3 and kitchen wastewater collection pipe 4, rainwater collection pipe 3 and external rainwater drainage device are interconnected, kitchen wastewater collection pipe 4 and kitchen wastewater drainage pipe are interconnected, the other end of processing box 1 is connected with drain pipe 5, it is convenient to collect external rainwater and kitchen wastewater in processing box 1, after simple processing in processing box 1, it is discharged through drain pipe 5, then is used for irrigation vegetation or flushes toilet, so as to achieve the recycling of wastewater, and then greatly reduce the waste of water resources.

[0026] It should be noted that, preferably, kitchen wastewater collection pipe 4 is provided with three-way valve in front, one end of three-way valve is communicated with the drain pipe of kitchen wastewater, one end is communicated with municipal drainage pipe, and the other end is kitchen wastewater collection pipe 4, so as to select when to collect kitchen wastewater according to actual situation.

[0027] The processing box 1 is provided with two vertical water flow dividing plates 6, the two water flow dividing plates 6 divide the internal space of processing box 1 into middle region and two side regions, the one end inner wall of processing box 1 corresponding to middle region is fixed with water collecting tank 7, rainwater collection pipe 3 and kitchen wastewater collection pipe 4 are communicated with water collecting tank 7, the lower end of water collecting tank 7 is provided with water outlet pipe 8, so that the wastewater collected by rainwater collection pipe 3 and kitchen wastewater collection pipe 4 can be concentrated in water collecting tank 7, and discharged as a whole through water outlet pipe 8, water wheel 9 is rotatably connected in processing box 1 below water outlet pipe 8, to impact one side of water wheel 9 by the water flowing out of water outlet pipe 8 and drive water wheel 9 to rotate unidirectionally, when water flows out of water outlet pipe 8, it just impacts one side of water wheel 9, to provide power for the unidirectional rotation of water wheel 9.

[0028] The center shaft 10 of the water wheel 9 is rotatably connected to the two ends of the treatment box 1, and when the water wheel 9 rotates under the impact of the water flowing out of the water outlet pipe 8, the center shaft 10 will rotate with the water wheel 9, ensuring the flexibility of the center shaft 10; the water wheel 9 is provided below the treatment box 1 with a guide plate whose height gradually decreases from one end to the other end of the treatment box 1, so that after the water falls on the guide plate, it can flow from one end to the other end of the treatment box 1 in the middle area, wherein the guide plate is spaced apart from the inner bottom surface of the treatment box 1, so that the guide plate and the inner bottom surface of the treatment box 1 are provided with a water outlet cavity, and the drain pipe 5 communicates with the water outlet cavity, so that the water in the water outlet cavity can flow out of the drain pipe 5; the other end of the guide plate is provided with a first filter screen 11 communicating between the upper and lower guide plates, so that when the water flows to the first filter screen 11, it can flow downward to the water outlet cavity through the first filter screen 11, and the filtration is completed through the water outlet cavity, blocking larger impurities on the upper end of the first filter screen 11, and at least one brush 12 is installed on the center shaft 10 above the first filter screen 11 to clean the impurities on the first filter screen 11, so that when the center shaft 10 rotates, the brush 12 can rotate with it, and the impurities on the first filter screen 11 are actively scraped to one side of the first filter screen 11, and the brush 12 is provided with a brush avoiding opening on the water flow partition plate 6 on both sides of the brush 12, which is convenient for the brush 12 to clean the impurities in the middle area to both sides (it should be noted that normally the impurities are cleaned to one of the two side areas, and the other side area may have impurities entering by chance, or impurities falling into it when the water flows); the filter screen frame 13 is placed in the two side areas, and the filter screen frame 13 is provided with an impurity inlet corresponding to the brush avoiding opening on one side, and in actual use, when the water wheel 9 is rotated by the water flowing out of the water outlet pipe 8, the center shaft 10 and the brush 12 are rotated together, the brush 12 cleans the impurities on the upper end of the first filter screen 11 to the two side areas, and the brush avoiding opening and the impurity inlet do not affect the rotation of the brush 12, and facilitate the brush 12 to clean the impurities into the filter screen frame 13, which can be directly cleaned after a period of time by the user taking out the filter screen frame 13 from the treatment box 1, and it should be noted that preferably, the filter screen frame 13 can be cleaned when it is not raining and the kitchen is not in use, so that when the filter screen frame 13 is taken out of the treatment box 1, impurities will not enter the two side areas without the filter screen frame 13.

[0029] The application can make the water in the water collecting tank 7 flow out from the water outlet pipe 8, and the water flowing out from the water outlet pipe 8 impacts on one side of the water wheel 9, so that the water wheel 9 can rotate in one direction, the rotation of the water wheel 9 can drive the central shaft 10 to rotate, and the rotation of the central shaft 10 can drive the brush 12 to rotate; and the water flowing to the guide plate flows from one end to the other end, is filtered at the first filter screen 11, and then enters the water outlet cavity and is discharged from the drain pipe 5, so as to facilitate the recycling of waste water and reduce the waste of water resources; meanwhile, the impurities concentrated on the first filter screen 11 can be cleaned into the filter screen frame 13 in the two side areas under the cleaning of the brush 12, and then are concentrated in the filter screen frame 13, so that the filter screen frame 13 can be taken out for cleaning when there is no rain and the kitchen is not used, and the cleaning of the impurities is more simple and convenient.

[0030] As a preferred embodiment in the present embodiment, it needs to be further explained that the water wheel 9 comprises a first hollow barrel and a plurality of fan leaves uniformly distributed outside the first hollow barrel, the first hollow barrel can reduce the overall weight, so that the water wheel 9 can rotate more easily under the impact of water flow, and the first hollow barrel is integrally connected to the central shaft 10, and the water outlet pipe 8 is aligned with the fan leaves on one side of the first hollow barrel, so that the water flowing out from the water outlet pipe 8 can impact the fan leaves on one side of the first hollow barrel, so that the fan leaves on one side of the first hollow barrel move downward, and then the water wheel 9 is rotated through the continuous impact of water flow.

[0031] As a preferred embodiment in the present embodiment, it needs to be further explained that the central shaft 10 is a hollow circular pipe, which reduces the overall weight, and the two ends of the central shaft 10 are rotatably connected to the treatment tank 1 through bearings, so that the rotation of the central shaft 10 is more flexible; the second hollow sleeve is integrally connected outside the central shaft 10 above the first filter screen 11, and at least one brush 12 is connected outside the second hollow sleeve, so that the length of the brush 12 can be reduced and the strength of the brush 12 can be enhanced.

[0032] As a preferred embodiment in the present embodiment, it needs to be further explained that the first filter screen 11 is located at the middle of the width direction of the guide plate, and the guide plates on both sides of the first filter screen 11 are arc-shaped plates with a height gradually decreasing from the middle to both sides, so that the impurities on the first filter screen 11 can more easily slide into the filter screen frame 15 when cleaned by the brush 12.

[0033] As a preferred embodiment in the embodiment, it needs to be explained that the flow guide plate comprises an inclined plate close to one end of the processing box 1 and a horizontal plate close to the other end of the processing box 1, the height of the inclined plate gradually decreases from one end away from the horizontal plate to the other end, and the first filter screen 11 is located in the middle of the horizontal plate, so that when the brush 12 is cleaned, the impurities on the first filter screen 11 located on the horizontal plate can be cleaned, and the cleaning effect is better.

[0034] As a preferred embodiment in the embodiment, it needs to be explained that the filter screen frame 13 comprises four rectangular frames connected in sequence and a second filter screen installed at the bottom of the rectangular frame, so that when the filter screen frame 13 is taken out, the water in the filter screen frame 13 can flow out from the second filter screen, and the impurities are concentrated on the second filter screen, and the impurity inlet is located on the side of the rectangular frame close to the brush avoiding port.

[0035] As a preferred embodiment in the embodiment, it needs to be explained that the first annular sealing ring is installed on the rectangular frame outside the impurity inlet, the side of the rectangular frame facing the water flow dividing plate 6 is provided with a first annular groove, the cross section of the first annular groove is a superior arc-shaped groove, and one side of the first annular sealing ring is matched and installed in the first annular groove, so as to ensure the stability of the first annular sealing ring, so that the first annular sealing ring can also be prevented from falling off when the filter screen frame 13 is installed, and then the sealing effect between the filter screen frame 13 and the water flow dividing plate 6 is strengthened by using the first annular sealing ring, so as to prevent impurities from entering the gap between them.

[0036] As a preferred embodiment in the embodiment, it needs to be explained that the other end of the processing box 1 corresponding to the water outlet cavity is provided with an opening, so that the water outlet cavity at the other end of the processing box 1 forms a drawer port, the water quality treatment drawer 14 is slidably connected in the drawer port, the edges of the water quality treatment drawer 14 are sealingly provided with the processing box 1 by the sealing strip, so as to avoid water overflow, and the water quality treatment layer is installed at the upper part of the water quality treatment drawer 14, the drain pipe 5 communicates with the inside of the water quality treatment drawer 14 below the water quality treatment layer, so that the water discharged from the drain pipe 5 can be further treated.

[0037] As one preferred embodiment in the embodiment, it needs to be explained further that the inner wall of the upper end of the water quality treatment drawer 14 is provided with an outwardly extending annular placing step, and the water quality treatment layer is placed in the annular placing step, and is convenient to assemble and disassemble, and the water quality treatment layer comprises an activated carbon filter layer; the activated carbon filter layer comprises a water filter frame 15 with an upper end opening and a lower end provided with a plurality of through holes, and the water filter frame 15 is provided with activated carbon particles 16 inside, which can absorb odor; the edge of the upper end of the water quality treatment drawer 14 is provided with an annular groove, and a second annular sealing ring is installed in the annular groove, which can enhance the sealing performance, so that all the water is discharged from the drain pipe 5 after passing through the activated carbon filter layer.

[0038] As one preferred embodiment in the embodiment, it needs to be explained further that the upper end of the water collecting tank 7 is provided with a cover plate, and the end of the water collecting tank 7 away from the rainwater collecting pipe 3 and the kitchen wastewater collecting pipe 4 is rotationally connected with an adjusting rod, one end of the adjusting rod is connected with a valve core, the valve core is provided with a water flowing hole, the lower end of the water flowing hole is in communication with the upper end of the water outlet pipe 8, and the upper end of the water flowing hole is in communication with the inner bottom surface of the water collecting tank 7, and then by rotating the adjusting rod, the water outlet condition of the water outlet pipe 8 can be controlled.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the scope of protection of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. An energy-saving building water supply and drainage device with rainwater collection and utilization, comprising a treatment box (1), the upper end of the treatment box (1) is provided with a sealing cover (2), one end of the treatment box (1) is connected with a rainwater collection pipe (3) and a kitchen wastewater collection pipe (4), the other end of the treatment box (1) is connected with a drainage pipe (5), characterized in that, The processing box (1) is provided with two vertical water flow separation plates (6), which separate the internal space of the processing box (1) into a middle region and two side regions; a water collecting tank (7) is fixed to the inner wall of one end of the processing box (1) corresponding to the middle region; the rainwater collecting pipe (3) and the kitchen wastewater collecting pipe (4) are both communicated with the water collecting tank (7); the lower end of the water collecting tank (7) is provided with a water outlet pipe (8); a water wheel (9) is rotatably connected to the processing box (1) below the water outlet pipe (8) to be impacted by the water flowing out of the water outlet pipe (8) on one side of the water wheel (9) and driven to rotate unidirectionally. The central shaft (10) of the water wheel (9) is rotatably connected to the two ends of the processing box (1); a guide plate is arranged below the water wheel (9) and gradually lowered from one end of the processing box (1) to the other end; a water outlet cavity is arranged between the guide plate and the bottom surface of the processing box (1); a drain pipe (5) is communicated with the water outlet cavity; the other end of the guide plate is provided with a first filter screen (11) communicated above and below the guide plate; at least one brush (12) is installed on the central shaft (10) above the first filter screen (11) to clean the impurities on the first filter screen (11); brush avoiding openings are formed in the water flow separation plates (6) on both sides of the brush (12) to facilitate the brush (12) to clean the impurities in the middle region to the two side regions; a filter screen frame (13) is arranged in the two side regions; an impurity inlet is formed in one side of the filter screen frame (13) corresponding to the brush avoiding opening.

2. The energy-saving building water supply and drainage device with rainwater collection and utilization according to claim 1, characterized in that, The water wheel (9) comprises a first hollow cylindrical barrel and a plurality of fan blades uniformly distributed outside the first hollow cylindrical barrel; the first hollow cylindrical barrel is integrally connected to the central shaft (10); the water outlet pipe (8) is aligned with the fan blades on one side of the first hollow cylindrical barrel.

3. The energy-saving building water supply and drainage device with rainwater collection and utilization according to claim 2, characterized in that, The central shaft (10) is a hollow circular pipe; the two ends of the central shaft (10) are rotatably connected to the processing box (1) through bearings; a second hollow sleeve is integrally connected outside the central shaft (10) above the first filter screen (11); at least one brush (12) is connected outside the second hollow sleeve.

4. The energy-saving building water supply and drainage device with rainwater collection and utilization according to claim 1, characterized in that, The first filter screen (11) is located in the middle of the width direction of the guide plate; the guide plates on both sides of the first filter screen (11) are arc-shaped plates gradually lowered from the middle to both sides.

5. The energy-saving building water supply and drainage device with rainwater collection and utilization according to any one of claims 1-4, characterized in that, The guide plate comprises an inclined plate close to one end of the processing box (1) and a horizontal plate close to the other end of the processing box (1); the height of the inclined plate gradually decreases from one end away from the horizontal plate to the other end; the first filter screen (11) is located in the middle of the horizontal plate.

6. The energy-saving building water supply and drainage device with rainwater collection and utilization according to claim 1, characterized in that, The filter screen frame (13) comprises four rectangular frames connected end to end and a second filter screen installed at the bottom of the rectangular frame; the impurity inlet is located on one side of the rectangular frame close to the brush avoiding opening; two handle rods are fixed to the upper end of the rectangular frame.

7. The energy-saving building water supply and drainage device with rainwater collection and utilization according to claim 6, characterized in that, A first annular sealing ring is installed on the rectangular frame outside the impurity inlet; a first annular groove is formed on one side of the rectangular frame facing the water flow separation plate (6); the cross section of the first annular groove is a superior arc-shaped groove; one side of the first annular sealing ring is matched and installed in the first annular groove.

8. The energy-saving building water supply and drainage device with rainwater collection and utilization according to claim 7, characterized in that, The other end of the processing box (1) corresponding to the water outlet cavity is provided with an opening, so that the water outlet cavity at the other end of the processing box (1) forms a drawer opening, a water quality treatment drawer (14) is slidably connected in the drawer opening, the edge of the water quality treatment drawer (14) is sealingly arranged with the processing box (1) through a sealing strip, a water quality treatment layer is mounted on the upper portion of the water quality treatment drawer (14), and a drain pipe (5) is communicated with the inside of the water quality treatment drawer (14) below the water quality treatment layer.

9. The energy-saving building water supply and drainage device with rainwater collection and utilization according to claim 8, characterized in that, An annular placement step extending outward is arranged on the inner wall of the upper end of the water quality treatment drawer (14), the water quality treatment layer is placed in the annular placement step, and the water quality treatment layer comprises an activated carbon filter layer; the activated carbon filter layer comprises a water filter frame (15) with an upper end opening and a plurality of through holes arranged at the lower end, and the water filter frame (15) is provided with activated carbon particles (16) therein; the edge of the upper end of the water quality treatment drawer (14) is provided with an annular groove, and a second annular sealing ring is mounted in the annular groove.

10. The energy-saving building water supply and drainage device with rainwater collection and utilization according to claim 1, characterized in that, The upper end of the water collecting tank (7) is provided with a cover plate, one end of the water collecting tank (7) away from the rainwater collecting pipe (3) and the kitchen wastewater collecting pipe (4) is rotatably connected with an adjusting rod, one end of the adjusting rod is connected with a valve core, a water flow hole is arranged on the valve core, the lower end of the water flow hole is in communication with the upper end of the water outlet pipe (8), and the upper end of the water flow hole is in communication with the inner bottom surface of the water collecting tank (7).

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