An energy-saving building water supply and drainage system

Abstract

This application relates to an energy-saving building water supply and drainage system, belonging to the field of building water supply and drainage technology. It includes a building floor slab, a water collection tank, and a water supply pipe. The bottom wall of the water collection tank has an L-shaped outlet pipe with an on / off valve for opening and closing the outlet pipe. A water collection trough is recessed on the top surface of the building floor slab, and the water supply pipe is connected to the trough. A downpipe is installed on the bottom wall of the trough. Rainwater in the trough flows through the downpipe and impacts the on / off valve, causing it to open the outlet pipe. A boss is provided on the building floor slab, with its surface higher than the floor slab surface. The inlet end of the water supply pipe is located on the top surface of the boss. A closing plate is slidably installed on the building floor slab. The drainage system also includes a first driving component, which, after rainwater submerges the boss, drives the closing plate to slide and close the downpipe. The drainage system also includes a closing component for closing the drain pipe after the downpipe is closed, used to close the on / off valve. This application improves the water quality in the water collection tank.

Description

Technical Field

[0001] This application relates to the field of building water supply and drainage technology, and in particular to an energy-saving building water supply and drainage system. Background Technology

[0002] Energy-efficient buildings are low-energy buildings designed following basic climate design and energy-saving methods, taking into account building planning zoning, building groups and individual structures, building orientation, spacing, solar radiation, wind direction, and the external spatial environment. Furthermore, with increasing urban water consumption, water resources are being consumed more and more. However, a large amount of rainwater is discharged into sewers without being effectively utilized, resulting in resource waste. To save energy, modern energy-efficient buildings convert rainwater into usable water resources through water supply and drainage system design.

[0003] Currently, patent application CN113307396A discloses an energy-saving building water supply and drainage system, including a building floor slab, a water collection tank, and a water supply pipe connecting the floor slab and the water collection tank. The water supply pipe contains a spraying mechanism, which includes a mounting frame, a propeller, and a reagent kit that can deform under the pressure of the propeller. The mounting frame includes a permeable plate and a sliding rod vertically fixed to the plate. The plate is installed inside the water supply pipe, and its circumferential sidewall is fixed to the inner wall of the water supply pipe. The propeller is slidably connected to the sliding rod. The reagent kit is positioned between the plate and the propeller, and has through holes for the extrusion of disinfectant. A water intake pipe can be fixed to the water collection tank with screws, and the water intake pipe communicates with the inner cavity of the water collection tank, allowing users to extract and utilize the rainwater collected in the tank, thereby improving water resource utilization efficiency and achieving energy conservation and environmental protection.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: if the water collected in the collection tank is not used up for a long time, microorganisms in the collection tank will multiply in large quantities, causing the water quality of the collection tank to decline. At the same time, when the next stage of water collection operation is carried out, the collected rainwater mixes with the original water in the collection tank, resulting in poor water quality of the newly collected water. Summary of the Invention

[0005] To improve the water quality in the collection tank, this application provides an energy-saving building water supply and drainage system.

[0006] The energy-saving building water supply and drainage system provided in this application adopts the following technical solution:

[0007] An energy-saving building water supply and drainage system includes a building floor slab, a water collection tank, and a water supply pipe. The water supply pipe is located between and connected to the building floor slab and the water collection tank. The water collection tank is fixedly installed below the building floor slab. An L-shaped outlet pipe is installed on the bottom wall of the water collection tank, with its outlet end horizontal. An on / off valve is installed on the outlet pipe for opening and closing the outlet pipe. A water collection trough is recessed on the top surface of the building floor slab, and the water supply pipe is connected to the water collection trough. A downpipe is installed on the bottom wall of the water collection trough, and the downpipe is located at the opening and closing valve. Directly above the valve, rainwater in the collection trough impacts the opening and closing valve through the downpipe, causing the valve to open the outlet pipe. A boss is provided on the building floor slab, with its surface higher than the floor slab surface. The inlet end of the water pipe is located on the top surface of the boss. A closing plate for closing the downpipe is slidably installed on the building floor slab. The drainage system also includes a first driving component, which, after rainwater submerges the boss, drives the closing plate to slide and close the downpipe. The drainage system also includes a closing component for closing the drain pipe after the downpipe is closed, which is used by the opening and closing valve to close the drain pipe.

[0008] By adopting the above technical solution, during rainy weather, rainwater is collected in the collection tank and discharged through the downpipe. The rainwater discharged through the downpipe impacts the opening and closing valve, which opens the outlet pipe. After the outlet pipe opens, the rainwater in the collection tank is discharged through the outlet pipe. Subsequently, when the rainwater collection speed is greater than the downpipe discharge speed, the rainwater level in the collection tank rises until it submerges the protrusion. At this time, under the action of the first driving component, the first driving component drives the closing plate to slide, and the closing plate slides to close the downpipe. After the downpipe is closed, under the action of the closing component, the opening and closing valve is driven to close the outlet pipe, and the rainwater in the collection tank is discharged through the outlet pipe. Rainwater is collected by flowing into the collection tank through a water supply pipe. During this process, before the collection tank begins collecting water, the rainwater is drained, reducing the likelihood of later-collected rainwater mixing with the collected water and improving water quality. Simultaneously, in the early stages of water collection, the bottom wall of the collection trough contains a significant amount of dust and impurities. The raised platform allows the rainwater to carry these dust and impurities out through the drain pipe, reducing the possibility of them entering the collection tank via the water supply pipe and further improving water quality. The outlet pipe, located at the bottom of the collection tank, facilitates complete drainage of the collected water, further enhancing water quality.

[0009] Optionally, the opening and closing valve includes a disc rotatably disposed inside the outlet pipe, the rotation axis of the disc being vertical, and a connecting shaft being fixedly disposed at both the highest and lowest points of the disc. The connecting shaft is rotatably disposed on the outlet pipe and extends out of the outlet pipe, and a first propeller is fixedly disposed on the connecting shaft located at the highest point, the first propeller being located inside the downpipe.

[0010] By adopting the above technical solution, when the rainwater in the downpipe passes through the first propeller, it drives the first propeller to rotate. The rotation of the first propeller drives the connecting shaft to rotate, and the rotation of the connecting shaft drives the disc to rotate. The rotation of the disc intersects with the water outlet pipe, thereby opening the water outlet pipe. The operation is simple and convenient. At the same time, there is no need to manually open the water outlet pipe during the above process, saving manpower.

[0011] Optionally, the closure includes a torsion spring sleeved on the connecting shaft at the lowest point, with one end of the torsion spring fixedly mounted on the water outlet pipe and the other end fixedly mounted on the connecting shaft.

[0012] By adopting the above technical solution, when the first propeller rotates and drives the disc to rotate, the disc drives the lowest point connecting shaft to rotate. The rotation of the connecting shaft compresses the torsion spring, and the torsion spring accumulates a certain potential energy after compression. When the downpipe is closed, under the action of the torsion spring torque, the connecting shaft is driven to rotate in the opposite direction. The rotation of the connecting shaft drives the disc to rotate and close the outlet pipe. The operation is simple and convenient. The torsion spring has the advantages of simple structure, convenient installation and long service life.

[0013] Optionally, the sliding direction of the closing plate is parallel to the depth direction of the water collection trough. The first driving component includes a waterproof motor installed on the building floor slab, and a lead screw is coaxially installed on the output shaft of the waterproof motor. The closing plate is threadedly connected to the lead screw. The first driving component also includes an actuating component that starts the waterproof motor and drives the closing plate to slide and close the downpipe after the rainwater submerges the boss.

[0014] By adopting the above technical solution, when rainwater submerges the protrusion, the waterproof motor is energized under the action of the starting component. The waterproof motor drives the lead screw to rotate, and the rotation of the lead screw causes the closing plate to slide. The closing plate slides towards the bottom wall of the water collection tank and covers the water inlet end of the downpipe, thereby closing the downpipe. The operation is simple and convenient. Furthermore, the lead screw drive has a self-locking function, which makes it easy to fix the closing plate at the above-mentioned position.

[0015] Optionally, the starting component includes a push-button switch disposed on the side wall of the water collection tank. The push-button switch is electrically connected to the waterproof motor and faces the bottom wall of the water collection tank. A pressing block is slidably disposed on the side wall of the water collection tank. The sliding direction of the pressing block is parallel to the depth direction of the water collection tank. The push-button switch is located on the sliding path of the pressing block. A float is disposed on the pressing block. The float floats up under the action of rainwater. The float drives the pressing block to float up and abut against the push-button switch, and the waterproof motor is powered on and started.

[0016] By adopting the above technical solution, when the liquid level in the water collection tank rises, it causes the float to rise, which in turn causes the pressing block to rise. The pressing block then comes into contact with the pressing switch, which is in a closed state. This energizes the waterproof motor, which in turn causes the closing plate to slide and close the drain pipe. The operation is simple and convenient.

[0017] Optionally, a support frame is provided on the bottom wall of the water collection tank, the waterproof motor is mounted on the support frame, the output shaft of the waterproof motor faces the bottom wall of the water collection tank, the height of the waterproof motor is greater than the height of the boss, and a drain pipe is provided on the side wall of the water collection tank, the drain pipe being located between the waterproof motor and the boss.

[0018] By adopting the above technical solution, the waterproof motor is positioned at a higher level under the support frame, reducing the possibility of water immersion and damage to the waterproof motor. Furthermore, when rainwater submerges the protrusion, the rainwater enters the water collection tank through the water supply pipe. If the liquid level rises to the drain pipe, the rainwater is discharged through the drain pipe, further reducing the possibility of water immersion and extending the service life of the waterproof motor. Moreover, the drain pipe reduces the possibility of rainwater overflowing the water collection trough and being discharged.

[0019] Optionally, a cleaning rod is rotatably installed inside the water collection tank. The cleaning rod is located at the axis of the water collection tank, and the rotation axis of the cleaning rod is parallel to the depth direction of the water collection tank. The cleaning rod is provided with bristles, which abut against the side wall of the water collection tank. The drainage system also includes a second driving component for driving the cleaning rod to rotate.

[0020] By adopting the above technical solution, before the rainwater in the collection tank is discharged through the outlet pipe, the second driving component drives the cleaning rod to rotate. The rotation of the cleaning rod drives the brush to rotate, and the rotation of the brush scrapes the inner wall of the collection tank, so that the microorganisms on the inner wall of the collection tank are separated into the rainwater and discharged with the rainwater, which further improves the water quality.

[0021] Optionally, the second driving component includes a second propeller rotatably disposed inside the downpipe, the rotation axis of the second propeller being perpendicular to the length direction of the downpipe, a driving rod coaxially disposed on the second propeller, the driving rod extending out of the downpipe and into the water collection tank, and bevel gears meshing with each other being disposed on the end of the driving rod entering the water collection tank and on the cleaning rod.

[0022] By adopting the above technical solution, after rainwater enters the downpipe, the rainwater impacts the second propeller. The rotation of the second propeller drives the drive rod to rotate, which in turn drives the bevel gear to rotate. The bevel gear then drives the cleaning rod to rotate, which in turn drives the brush to rotate and clean the inner wall of the water collection tank. The operation is simple and convenient.

[0023] Optionally, a water storage tank is provided on the downpipe, the water storage tank is located between the second propeller and the outlet pipe, the water storage tank divides the downpipe into a first pipe body and a second pipe body, both of which are connected to the water storage tank, the second propeller is located in the first pipe body, the first propeller is located in the second pipe body, and an opening and closing device for opening and closing the second pipe body is provided in the water storage tank.

[0024] By adopting the above technical solution, when rainwater in the collection tank passes through the first pipe, it drives the second propeller to rotate. At this time, the cleaning rod rotates to clean the inner wall of the collection tank. Subsequently, the rainwater enters the storage tank. At this time, the second pipe is in a closed state. After the collection tank is cleaned, the second pipe is opened through the opening and closing device. The rainwater impacts the first propeller and opens the outlet pipe. In the above process, the cleaning and drainage of the collection tank are sequential, thereby improving the cleaning effect of the collection tank.

[0025] Optionally, the opening and closing component includes a plug that is slidably disposed in the water storage tank. The plug is inserted into the second pipe body, and the sliding direction of the plug is parallel to the height direction of the water storage tank. An air bladder is provided on the plug.

[0026] By adopting the above technical solution, as the amount of rainwater in the water tank gradually increases, the buoyancy of the airbag increases. When the buoyancy of the airbag is greater than the sum of the weight of the plug and the friction between the plug and the second pipe, the plug rises and opens the second pipe, making the operation simple and convenient. At the same time, after the first pipe is closed, the drainage of the second pipe causes the plug to slide toward the second pipe and be inserted into the second pipe, thus closing the second pipe.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. During rainy weather, rainwater is collected in a collection trough and discharged through a downpipe. The rainwater discharged through the downpipe impacts the opening and closing valve, which opens the outlet pipe. After the outlet pipe opens, the rainwater in the collection tank is discharged through the outlet pipe. Subsequently, when the rainwater collection rate exceeds the downpipe discharge rate, the rainwater level in the collection trough rises until it submerges the protrusion. At this point, under the action of the first driving component, the first driving component drives the closing plate to slide, which closes the downpipe. After the downpipe closes, under the action of the closing component, the opening and closing valve closes the outlet pipe, and the rainwater in the collection trough enters the collection tank through the water delivery pipe, completing the rainwater collection. In the above process, before the collection tank collects water, the rainwater in the collection tank is discharged, reducing the possibility of the later collected rainwater mixing with the water collected in the collection tank, thus improving water quality.

[0029] 2. In the early stage of water collection, the bottom wall of the water collection trough has a lot of dust and impurities. Under the action of the protrusion, the rainwater carries the dust and impurities out through the downpipe, reducing the possibility of dust and impurities entering the water collection tank through the water supply pipe, and further improving the water quality. The outlet pipe is located at the bottom of the water collection tank, which facilitates the complete discharge of the water collected in the water collection tank, further improving the water quality. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of an energy-saving building water supply and drainage system according to an embodiment of this application;

[0031] Figure 2 This is a side view of an energy-saving building water supply and drainage system according to an embodiment of this application;

[0032] Figure 3 This is a cross-sectional view of an energy-saving building water supply and drainage system according to an embodiment of this application;

[0033] Figure 4 yes Figure 3 A magnified schematic diagram of part A;

[0034] Figure 5 yes Figure 3 Enlarged schematic diagram of part B;

[0035] Figure 6 yes Figure 3 An enlarged schematic diagram of section C.

[0036] Explanation of reference numerals in the attached diagram: 1. Building floor slab; 2. Water collection tank; 3. Water supply pipe; 4. Water outlet pipe;

[0037] 5. On / off valve; 51. Disc; 52. Connecting shaft; 53. First propeller;

[0038] 6. Water collection tank;

[0039] 7. Downspout; 71. First pipe body; 72. Second pipe body;

[0040] 8. Boss; 9. Closing plate; 10. Torsion spring; 11. Waterproof motor; 12. Lead screw; 13. Support frame; 16. Push switch; 17. Press block; 18. Float; 19. Guide rod; 20. Drain pipe; 21. Cleaning rod; 22. Mounting rod; 23. Brush bristles; 24. Second propeller; 25. Drive rod; 26. Bevel gear; 27. Water tank; 28. Plug; 29. ​​Vertical rod. Detailed Implementation

[0041] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0042] This application discloses an energy-saving building water supply and drainage system. (Refer to...) Figure 1 The energy-saving building water supply and drainage system includes a building floor slab 1, a water collection tank 2 and a water supply pipe 3. The water supply pipe 3 is located between the building floor slab 1 and the water collection tank 2 and is connected. The water supply pipe 3 is U-shaped. The water collection tank 2 is fixedly installed below the building floor slab 1.

[0043] Reference Figure 2 and Figure 3In this embodiment of the application, the bottom wall of the water collection tank 2 is provided with a water outlet pipe 4. The water outlet pipe 4 is L-shaped and the water outlet end of the water outlet pipe 4 is located in the horizontal direction. Furthermore, the water outlet end of the water outlet pipe 4 is located outside the water collection tank 2, and an opening and closing valve 5 for opening and closing the water outlet pipe 4 is provided on the water outlet pipe 4.

[0044] Reference Figure 3 and Figure 4 Furthermore, a water collection trough 6 is formed by recessing the top surface of the building floor slab 1. The water supply pipe 3 is connected to the water collection trough 6. A downpipe 7 is fixedly installed on the bottom wall of the water collection trough 6. The water inlet end of the downpipe 7 is flush with the bottom wall of the water collection trough 6. The downpipe 7 is located directly above the opening and closing valve 5. The rainwater in the water collection trough 6 impacts the opening and closing valve 5 through the downpipe 7, causing the opening and closing valve 5 to open the outlet pipe 4.

[0045] Reference Figure 3 Furthermore, a boss 8 is fixedly installed on the building floor slab 1. The surface of the boss 8 is higher than the surface of the building floor slab 1. The water inlet end of the water pipe 3 is located on the top surface of the boss 8. A closing plate 9 for closing the downpipe 7 is slidably installed on the building floor slab 1. The drainage system also includes a first driving member. After the boss 8 is submerged by rainwater, the first driving member drives the closing plate 9 to slide and close the downpipe 7.

[0046] During rainy weather, rainwater is collected in the collection trough 6 and discharged through the downpipe 7. The rainwater discharged through the downpipe 7 impacts the opening and closing valve 5, which opens the outlet pipe 4. After the outlet pipe 4 is opened, the rainwater in the collection tank 2 is discharged through the outlet pipe 4. When the rainwater collection speed is greater than the discharge speed of the downpipe 7, the rainwater level in the collection trough 6 rises until it submerges the protrusion 8. At this time, under the action of the first driving component, the first driving component drives the closing plate 9 to slide, and the closing plate 9 slides to close the downpipe 7. After the downpipe 7 is closed, under the action of the closing component, the opening and closing valve 5 is driven to close the outlet pipe 4. The rainwater in the collection trough 6 enters the collection tank 2 through the water supply pipe 3, completing the rainwater collection. Under the action of the protrusion 8, the rainwater in the early stage is discharged through the downpipe 7, which effectively reduces the amount of mud, sand, impurities, etc. entering the collection tank 2 and improves the water quality in the collection tank 2.

[0047] Reference Figure 3 and Figure 4In this embodiment, the opening and closing valve 5 includes a disc 51 rotatably disposed inside the outlet pipe 4. The rotation axis of the disc 51 is vertical. When the plane of the disc 51 is perpendicular to the axis of the outlet pipe 4, the outlet pipe 4 is in a closed state. A connecting shaft 52 is fixedly disposed at both the highest and lowest points of the disc 51. The connecting shaft 52 is rotatably disposed on the outlet pipe 4 and extends out of the outlet pipe 4. A first propeller 53 is fixedly disposed on the connecting shaft 52 at the highest point. The first propeller 53 is located inside the downpipe 7. Furthermore, a sealing gasket is disposed in the through hole on the outlet pipe 4 through which the connecting shaft 52 passes. The connecting shaft 52 is rotatably disposed inside the sealing gasket.

[0048] During the drainage process of the downpipe 7, rainwater impacts the first propeller 53, causing the first propeller 53 to rotate. The rotation of the first propeller 53 causes the connecting shaft 52 to rotate, and the rotation of the connecting shaft 52 causes the disc 51 to rotate. The rotation of the disc 51 is intersected with the axis of the outlet pipe 4, thereby opening the outlet pipe 4. The operation is simple and convenient. Furthermore, a limit block is fixedly installed inside the outlet pipe 4. The limit block is located on one side of the disc 51. After the disc 51 abuts against the limit block, the angle between the plane of the disc 51 and the axis of the outlet pipe 4 is 45°, so as to reduce the possibility of the disc 51 rotating in circles inside the outlet pipe 4.

[0049] Reference Figure 3 and Figure 4 The drainage system also includes a closing element for closing the drain pipe 20 after the downpipe 7 is closed, which is used to close the drain pipe 20 by the valve 5. In this embodiment, the closing element includes a torsion spring 10 sleeved on the connecting shaft 52 at the lowest point. One side of the torsion spring 10 is fixedly mounted on the outlet pipe 4, and the other end is fixedly mounted on the connecting shaft 52.

[0050] Reference Figure 3 and Figure 5 In this embodiment of the application, in order to improve the closing effect of the closing plate 9 on the downpipe 7, the sliding direction of the closing plate 9 is parallel to the depth direction of the water collection tank 6; the closing plate 9 slides toward the building floor slab 1 and presses against the building floor slab 1 to obtain a better closing effect on the downpipe 7.

[0051] Reference Figure 3 and Figure 5Furthermore, the first driving component includes a waterproof motor 11 mounted on the building floor slab 1. A lead screw 12 is coaxially mounted on the output shaft of the waterproof motor 11, and the closing plate 9 is threadedly connected to the lead screw 12. In this embodiment, a support frame 13 is provided on the bottom wall of the water collection tank 6, and the waterproof motor 11 is mounted on the support frame 13. The output shaft of the waterproof motor 11 faces the bottom wall of the water collection tank 6. A slider is provided on the side wall of the closing plate 9 near the support frame 13, and a sliding groove is provided on the support frame 13 for the slider to slide. When closing the downpipe 7, the waterproof motor 11 is started, and the waterproof motor 11 drives the lead screw 12 to rotate. The rotation of the lead screw 12 causes the closing plate 9 to slide, thereby closing the downpipe 7. The operation is simple and convenient. Under the action of the slider and the sliding groove, the possibility of the closing plate 9 and the lead screw 12 rotating synchronously is reduced.

[0052] Reference Figure 3 and Figure 5 To facilitate the starting of the waterproof motor 11, the first driving component also includes a starting component that starts the waterproof motor 11 and drives the closing plate 9 to slide and close the downpipe 7 after the rainwater submerges the boss 8. The starting component includes a push switch 16 set on the side wall of the water collection tank 6. The push switch 16 is electrically connected to the waterproof motor 11. Furthermore, the mains power wire is electrically connected to the push switch 16. The push switch 16 faces the bottom wall of the water collection tank 6. A pressing block 17 is slidably set on the side wall of the water collection tank 6. The sliding direction of the pressing block 17 is parallel to the depth direction of the water collection tank 6. The push switch 16 is located on the sliding path of the pressing block 17. A float 18 is set on the pressing block 17. In this embodiment, a guide rod 19 is fixedly set on the building floor slab 1. The float 18 slides through the guide rod 19. The float 18 floats up under the action of the rainwater. The float 18 drives the pressing block 17 to float up and abut against the push switch 16, and the waterproof motor 11 is powered on and started.

[0053] When the liquid level in the water collection tank 6 rises, the liquid level causes the float 18 to float up, and the float 18 causes the pressing block 17 to float up. The pressing block 17 abuts against the pressing surface of the pressing switch 16. At this time, the pressing switch 16 is in the closed state, and then the waterproof motor 11 is connected to the mains power. The waterproof motor 11 starts and drives the closing plate 9 to slide.

[0054] Reference Figure 3 and Figure 5 To reduce the possibility of the waterproof motor 11 being submerged in water, the height of the waterproof motor 11 is greater than the height of the boss 8. A drain pipe 20 is provided on the side wall of the water collection tank 6. The drain pipe 20 is located between the waterproof motor 11 and the boss 8. When the liquid surface beyond the boss 8 faces the waterproof motor 11, the liquid surface first passes through the drain pipe 20, and the rainwater is discharged through the drain pipe 20, reducing the possibility of the waterproof motor 11 being submerged in water.

[0055] Reference Figure 3 and Figure 6In this embodiment, the water collection tank 2 is cylindrical, and the axis of the water collection tank 2 is vertical. A cleaning rod 21 is rotatably installed inside the water collection tank 2. The cleaning rod 21 is located at the axis of the water collection tank 2, and the rotation axis of the cleaning rod 21 is parallel to the depth direction of the water collection tank 2. The cleaning rod 21 is provided with bristles 23, which abut against the side wall of the water collection tank 2. Furthermore, the cleaning rod 21 is provided with an installation rod 22, the length direction of the installation rod 22 is perpendicular to the length direction of the cleaning rod 21, and the bristles 23 include a brush rod fixedly installed on the installation rod 22 and a brush provided on the brush rod. The length direction of the brush rod is parallel to the length direction of the cleaning rod 21. The drainage system also includes a second driving member for driving the cleaning rod 21 to rotate.

[0056] Reference Figure 3 and Figure 6 The second driving component includes a second propeller 24 rotatably disposed inside the downpipe 7. The rotation axis of the second propeller 24 is perpendicular to the length direction of the downpipe 7. A driving rod 25 is coaxially disposed on the second propeller 24. The driving rod 25 is fixedly connected to the second propeller 24. The driving rod 25 passes through the downpipe 7 and enters the water collection tank 2. The end of the driving rod 25 entering the water collection tank 2 and the cleaning rod 21 are provided with meshing bevel gears 26.

[0057] Rainwater in the downpipe 7 impacts the second propeller 24, which in turn drives the drive rod 25 to rotate. The drive rod 25 then drives the bevel gear 26 to rotate, which in turn drives the cleaning rod 21 to rotate. The cleaning rod 21 then drives the mounting rod 22 to rotate around the cleaning rod 21 as its axis, and drives the brush to clean the inner wall of the water collection tank 2. Subsequently, the rainwater in the water collection tank 2 is discharged, further improving the water quality of the water collected in the water collection tank 2.

[0058] Reference Figure 3 and Figure 6 To improve the cleaning effect of the water collection tank 2, a water storage tank 27 is installed on the downpipe 7. The water storage tank 27 is located between the second propeller 24 and the outlet pipe 4. The water storage tank 27 divides the downpipe 7 into a first pipe body 71 and a second pipe body 72. The first pipe body 71 is connected to the water collection tank 6, and both the first pipe body 71 and the second pipe body 72 are connected to the water storage tank 27. The second propeller 24 is located inside the first pipe body 71, and the first propeller 53 is located inside the second pipe body 72. Furthermore, the outlet pipe 4 passes through... The second pipe 72 is connected to the water storage tank 27, which is equipped with an opening and closing device for opening and closing the second pipe 72. The opening and closing device includes a plug 28 that is slidably disposed in the water storage tank 27. The plug 28 is inserted into the second pipe 72, and the sliding direction of the plug 28 is parallel to the height direction of the water storage tank 27. An air bladder is provided on the plug 28. Furthermore, a vertical rod 29 is provided in the water storage tank 27. The length direction of the vertical rod 29 is parallel to the depth direction of the water storage tank 27, and the plug 28 is slidably disposed on the vertical rod 29.

[0059] As the amount of rainwater in the water storage tank 27 gradually increases, the buoyancy of the airbag increases. When the buoyancy of the airbag is greater than the sum of the weight of the plug 28 and the friction between the plug 28 and the second pipe 72, the plug 28 floats up and opens the second pipe 72. In the above process, the cleaning and drainage of the water collection tank 2 are sequential, allowing the impurities scraped off the side wall of the water collection tank 2 to enter the water and be discharged with the rainwater, further improving the cleaning effect of the water collection tank 2.

[0060] The implementation principle of an energy-saving building water supply and drainage system according to an embodiment of this application is as follows:

[0061] During rainy weather, rainwater falls into the water collection tank 6. The collected water in the water collection tank 6 enters the first pipe body 71 and impacts the second propeller 24. The second propeller 24 drives the drive rod 25 to rotate. The rotation of the drive rod 25 drives the bevel gear 26 to rotate. The rotation of the bevel gear 26 drives the cleaning rod 21 to rotate. The rotation of the cleaning rod 21 drives the mounting rod 22 to rotate around the cleaning rod 21 as the axis, and drives the brush to clean the inner wall of the water collection tank 2.

[0062] Rainwater passing through the second propeller 24 enters the water storage tank 27. When the buoyancy of the airbag is greater than the weight of the plug 28 and the sum of the friction between the plug 28 and the second pipe 72, the plug 28 floats up and opens the second pipe 72, and the rainwater in the water collection tank 2 and the rainwater in the previous water collection trough 6 are discharged.

[0063] As the rainwater level in the collection tank 6 gradually rises, the level causes the float 18 to float upwards, which in turn causes the pressing block 17 to float upwards. The pressing block 17 then comes into contact with the pressing surface of the pressing switch 16. At this time, the pressing switch 16 is in the closed state, which connects the waterproof motor 11 to the mains power. The waterproof motor 11 drives the lead screw 12 to rotate, and the rotation of the lead screw 12 causes the closing plate 9 to slide, thereby closing the downpipe 7. Under the action of the torsion spring 10, the disc 51 rotates to close the outlet pipe 4. After the downpipe 7 is closed, the rainwater enters the collection tank 2 through the water supply pipe 3, completing the collection of rainwater.

[0064] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An energy-saving building water supply and drainage system, comprising a building floor slab (1), a water collection tank (2), and a water supply pipe (3), wherein the water supply pipe (3) is located between and connected to the building floor slab (1) and the water collection tank (2), and the water collection tank (2) is fixedly installed below the building floor slab (1), characterized in that: The bottom wall of the water collection tank (2) is provided with a water outlet pipe (4), which is L-shaped and has its outlet end in the horizontal direction. A valve (5) for opening and closing the water outlet pipe (4) is provided on the water outlet pipe (4). A water collection trough (6) is formed by recessing the top surface of the building floor slab (1). The water supply pipe (3) is connected to the water collection trough (6). A downpipe (7) is provided on the bottom wall of the water collection trough (6). The downpipe (7) is located directly above the valve (5). Rainwater in the water collection trough (6) impacts the valve (5) through the downpipe (7), causing the valve to open and close. The valve (5) opens the outlet pipe (4); a boss (8) is provided on the building floor slab (1), the surface of the boss (8) is higher than the surface of the building floor slab (1), the inlet end of the water supply pipe (3) is located on the top surface of the boss (8), a closing plate (9) for closing the downpipe (7) is slidably provided on the building floor slab (1), the drainage system also includes a first driving member, the first driving member is used to drive the closing plate (9) to slide and close the downpipe (7) after the rainwater floods the boss (8); the drainage system also includes a closing member for opening and closing the valve (5) to close the drain pipe (20) after the downpipe (7) is closed; The opening and closing valve (5) includes a disc (51) rotatably disposed in the outlet pipe (4). The rotation axis of the disc (51) is vertical. A connecting shaft (52) is fixedly disposed at the highest point and the lowest point of the disc (51). The connecting shaft (52) is rotatably disposed on the outlet pipe (4) and extends out of the outlet pipe (4). A first propeller (53) is fixedly disposed on the connecting shaft (52) at the highest point. The first propeller (53) is located in the downpipe (7). A cleaning rod (21) is rotatably installed inside the water collection tank (2). The cleaning rod (21) is located at the axis of the water collection tank (2). The rotation axis of the cleaning rod (21) is parallel to the depth direction of the water collection tank (2). The cleaning rod (21) is provided with bristles (23). The bristles (23) abut against the side wall of the water collection tank (2). The drainage system also includes a second driving component for driving the cleaning rod (21) to rotate. The second driving component includes a second propeller (24) rotatably disposed inside the downpipe (7). The rotation axis of the second propeller (24) is perpendicular to the length direction of the downpipe (7). A driving rod (25) is coaxially disposed on the second propeller (24). The driving rod (25) extends out of the downpipe (7) and enters the water collection tank (2). The end of the driving rod (25) entering the water collection tank (2) and the cleaning rod (21) are provided with meshing bevel gears (26).

2. The energy-saving building water supply and drainage system according to claim 1, characterized in that: The closure includes a torsion spring (10) sleeved on the connecting shaft (52) at the lowest point. One side of the torsion spring (10) is fixedly mounted on the water outlet pipe (4), and the other end is fixedly mounted on the connecting shaft (52).

3. The energy-saving building water supply and drainage system according to claim 1, characterized in that: The sliding direction of the closing plate (9) is parallel to the depth direction of the water collection tank (6). The first driving component includes a waterproof motor (11) installed on the building floor slab (1). A lead screw (12) is coaxially installed on the output shaft of the waterproof motor (11). The closing plate (9) is threadedly connected to the lead screw (12). The first driving component also includes a starting component that starts the waterproof motor (11) and drives the closing plate (9) to slide and close the downpipe (7) after the rainwater floods the boss (8).

4. The energy-saving building water supply and drainage system according to claim 3, characterized in that: The starting component includes a push switch (16) disposed on the side wall of the water collection tank (6). The push switch (16) is electrically connected to the waterproof motor (11). The push switch (16) faces the bottom wall of the water collection tank (6). A pressing block (17) is slidably disposed on the side wall of the water collection tank (6). The sliding direction of the pressing block (17) is parallel to the depth direction of the water collection tank (6). The push switch (16) is located on the sliding path of the pressing block (17). A float (18) is disposed on the pressing block (17). The float (18) floats up under the action of rainwater. The float (18) drives the pressing block (17) to float up and abut against the push switch (16). The waterproof motor (11) is powered on and started.

5. An energy-saving building water supply and drainage system according to claim 4, characterized in that: The bottom wall of the water collection tank (6) is provided with a support frame (13), the waterproof motor (11) is mounted on the support frame (13), the output shaft of the waterproof motor (11) faces the bottom wall of the water collection tank (6), the height of the waterproof motor (11) is greater than the height of the boss (8), the side wall of the water collection tank (6) is provided with a drain pipe (20), the drain pipe (20) is located between the waterproof motor (11) and the boss (8).

6. The energy-saving building water supply and drainage system according to claim 1, characterized in that: A water storage tank (27) is provided on the downpipe (7). The water storage tank (27) is located between the second propeller (24) and the outlet pipe (4). The water storage tank (27) divides the downpipe (7) into a first pipe body (71) and a second pipe body (72). Both the first pipe body (71) and the second pipe body (72) are connected to the water storage tank (27). The second propeller (24) is located inside the first pipe body (71). The first propeller (53) is located inside the second pipe body (72). An opening and closing device for opening and closing the second pipe body (72) is provided in the water storage tank (27).

7. An energy-saving building water supply and drainage system according to claim 6, characterized in that: The opening and closing component includes a plug (28) that is slidably disposed in the water storage tank (27). The plug (28) is inserted into the second pipe body (72). The sliding direction of the plug (28) is parallel to the height direction of the water storage tank (27). An air bladder is provided on the plug (28).

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