A water resource filtering and recycling system and filtering method thereof

Abstract

The present invention belongs to the technical field of water resource recycling and utilization, and particularly relates to a water resource filtering and recycling system and a filtering method thereof. The system comprises a self-pressurized water tower installed on the roof of a building, a water reservoir installed on the roof of a side podium of the building, and a filtering mechanism installed on the water reservoir. A rainwater delivery pipe is provided on the roof of the building to connect the water reservoir, and a canteen water use mechanism recovers vegetable washing water and delivers it to the water reservoir. A toilet water unit connected to the self-pressurized water tower is provided on each floor, and the filtering mechanism comprises a primary filtering component and an emergency filtering component. Rainwater is filtered through the primary filtering component to prevent rainwater from carrying external impurities or wind-driven external impurities from falling into the water reservoir. At the same time, after impurities clog the primary filtering component, emergency filtering can be performed through the emergency filtering component to effectively ensure filtering efficiency. After rainwater and canteen vegetable washing water are collected, water pressure is provided to flush the toilet by relying on the height difference, thereby achieving the effect of saving water and energy.

Description

Technical Field

[0001] The invention belongs to the technical field of water resource recycling, and in particular relates to a water resource filtering and recycling system and a filtering method thereof. Background Art

[0002] Globally, water shortage and environmental degradation have become problems that cannot be ignored. Due to the uneven distribution of water resources and the continuous increase in human activities, many regions are facing serious water shortages. Therefore, how to use and recycle water resources has become an important issue for achieving sustainable development. The recycling of rainwater and some domestic water is relatively easy and can be converted into water resources for reuse.

[0003] For example, Chinese patent application No. (2016101723007) discloses a water-saving system for buildings. This application recycles rainwater and grey water without processing them, and directly uses them for bathroom water, landscaping, and cleaning corridors and stairs, which can easily lead to the spread of germs and cause environmental pollution (such as odor). Therefore, the recycled rainwater needs to be filtered, and the traditional filtering method is prone to impurities clogging the filter holes, thereby affecting the collection of rainwater, which needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a water resource filtration and recycling system and a filtration method thereof in order to solve the above-mentioned technical problems, so as to achieve the effect of filtering the collected rainwater and performing emergency filtration when impurities cause blockage.

[0005] In view of this, the present invention provides a water resource filtering and recycling system, comprising:

[0006] The building has a self-pressurized water tower and rainwater delivery pipe installed on the roof, and a toilet water unit connected to the self-pressurized water tower is installed on each floor;

[0007] The podium is installed on the side of the building, and a water reservoir is installed on the roof. A first lifting pump is provided between the water reservoir and the self-pressurized water tower to lift the water in the water reservoir to the self-pressurized water tower;

[0008] A filter mechanism is installed on the water reservoir and includes a primary filter assembly and an emergency filter assembly;

[0009] The canteen water mechanism is located in the podium and includes a vegetable washing water recovery component, and a second lifting pump is provided between the vegetable washing water recovery component and the water reservoir to lift the water in the vegetable washing water recovery component into the water reservoir;

[0010] Among them, the rainwater delivery pipe is used to transport rainwater collected on the roof of the building to the reservoir.

[0011] In the above technical solution, further:

[0012] The filtering mechanism also includes a plurality of horizontal bars and a plurality of vertical bars for dividing the top surface opening of the water storage tank into a plurality of sub-inlets;

[0013] Among them, primary filter components and emergency filter components are installed at multiple sub-inlets.

[0014] In the above technical solution, further:

[0015] The primary filter assembly includes a filter plate which is liftably slidably connected to the inner wall of the sub-inlet, and the filter plate is provided with a plurality of filter holes;

[0016] Among them, an adjustment component is installed under the filter plate, and is used to open the emergency filter component after the filter plate is lowered.

[0017] In the above technical solution, further:

[0018] The filter plate forms an arc surface at a plurality of filter holes, and a self-cleaning component is installed on the arc surface;

[0019] Among them, the self-cleaning components include:

[0020] A connecting rod, both ends of which are respectively connected to the inner wall bearings of the sub-inlet;

[0021] A scraper is installed on the surface of the connecting rod close to the curved surface, and a counterweight is embedded inside the scraper to scrape away impurities on the curved surface;

[0022] A windward plate is mounted on the surface of the connecting rod away from the curved surface and is used to drive the scraper to rotate around the connecting rod when blown by the wind;

[0023] Wherein, protrusions for limiting the rotation angle of the scraper are provided on both sides of the arc surface along the rotation direction of the scraper.

[0024] In the above technical solution, further, the emergency filtering component includes:

[0025] The valve body is mounted on the filter plate, and the filter plate is provided with a through hole at the valve body;

[0026] The valve core is axially mounted on one side of the valve body and is provided with a sealing platform on the outer side, which can be embedded in the through hole to form a sealing fit with the valve body and is used for opening and closing the through hole;

[0027] The fixed arm is mounted on the filter plate, and two fixed arms are symmetrically arranged along the axis of the valve body;

[0028] A swing arm is connected to an end of the fixed arm away from the filter plate;

[0029] The top support is installed between the two swing arms and on the side of the valve core away from the valve body, and can move with the two swing arms;

[0030] The regulating assembly is used to push open the valve core to open the through hole or pull back the valve core to close the through hole.

[0031] In the above technical solution, further, it also includes:

[0032] The filter screen is sleeved on the valve core, and one end of the filter screen is connected to the sealing platform, and the other end of the filter screen is connected to the valve body.

[0033] In the above technical solution, further:

[0034] The filter screen is in a cone or cylinder shape, and when the sealing platform is in sealing cooperation with the valve body, the cone or cylinder wall of the filter screen protrudes and bends radially away from the axis.

[0035] In the above technical solution, further, the adjustment component includes:

[0036] The elastic telescopic rod is installed in the water reservoir, and the bottom end is connected to the bottom wall of the water reservoir, and the top end is connected to the filter screen;

[0037] The top column is installed in the water reservoir by providing a support rod and is arranged corresponding to the through hole. When the filter plate moves downward, the top end is embedded in the valve core and pushes the valve core open;

[0038] The top column is provided with a water passage axially, and a water inlet and a water outlet are radially provided at both ends of the axial direction. When the valve core is pushed open by the top column, the water inlet passes through the through hole and corresponds to the filter screen.

[0039] In the above technical solution, further, the top column includes:

[0040] The power end, the valve core is provided with a plug hole which forms a static friction fit with the surface of the power end, and the power end can carry the valve core to move, and when the valve core is pulled back to close the through hole, it is separated from the valve core under the obstruction of the valve body;

[0041] The main body is connected to the end of the power end away from the valve core.

[0042] The present invention provides a filtering method of a water resource filtering and recycling system, comprising the following steps:

[0043] S1: Rainwater is collected through the reservoir on the roof of the podium building, and the rainwater first enters the sub-inlet and falls on the filter plate;

[0044] S2: Filter rainwater through the filter holes on the filter plate to prevent impurities from entering the reservoir;

[0045] S3: When there is wind, the wind blows the windward plate to drive the scraper to swing and scrape away the impurities on the curved surface;

[0046] S4: When there is no wind or the scraper cannot scrape away the impurities on the curved surface, the filter holes are blocked by impurities and rainwater accumulates on the filter plate; or when the amount of rainwater entering the sub-inlet is greater than the amount entering the filter holes, rainwater accumulates on the filter plate;

[0047] S5: When too much rainwater accumulates on the filter plate, gravity causes the filter plate to compress the elastic telescopic rod and move downward;

[0048] S6: As the filter plate moves downward, the power end of the top column passes through the through hole and is inserted into the socket to form a static friction fit, while pushing the valve core to open the through hole and unfold the filter screen;

[0049] S7: Rainwater on the filter plate passes through the filter screen, the water inlet, the water passage and the water outlet in sequence into the reservoir;

[0050] S8: When the rainwater accumulated on the filter plate decreases and the gravity is reduced, the filter plate moves upward under the action of the elastic telescopic rod, the power end of the top column drives the valve core to pull back, and it is blocked by the valve body and disengaged, and the sealing platform and the valve body are sealed to close the through hole.

[0051] The beneficial effects of the present invention are:

[0052] 1. By collecting rainwater and canteen vegetable washing water and using them in the toilet water unit, it can achieve good rainwater recycling and water saving effect;

[0053] 2. At the same time, by setting up a self-pressure water tower, after the water in the water tank is lifted to the self-pressure water tower by the first lifting pump, the water pressure is provided only by the height difference, and the flushing in the toilet can be realized with low energy consumption, achieving a good energy-saving effect;

[0054] 3. The rainwater is filtered through the primary filter component to prevent the rainwater from carrying external impurities or the wind from driving external impurities into the water reservoir. At the same time, when the impurities block the primary filter component, the emergency filter component can be used for emergency filtration to effectively ensure the filtration efficiency;

[0055] 4. By adopting the setting of the filter plate, the water reservoir can be protected from the sun and insulated in the hot and dry season, reducing the evaporation of water resources. The filter plate, the water reservoir and the air layer between the filter plate and the water reservoir can also provide the top floor of the podium with sun protection and heat insulation effects, reducing the dependence of the top floor of the podium on refrigeration equipment in the hot and dry season, achieving a certain energy-saving effect;

[0056] 5. By adopting the scraper and driving the scraper to scrape away the impurities on the curved surface by the wind blowing the windward plate, the service life of the filter hole can be extended. By using the principle of the tumbler and driving it by wind energy, the energy consumption and maintenance cost can be effectively reduced;

[0057] 6. The through hole is opened by pushing the valve core through the top column, and the through hole is closed by pulling back the valve core, that is, the emergency filter component is automatically opened according to the need of filtering, which can effectively ensure the service life of the filtration and avoid the situation where rainwater collection is blocked due to delayed cleaning, providing a layer of insurance for rainwater collection and filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is a schematic diagram of the structure of the present invention;

[0059] Figure 2 It is a structural schematic diagram of the water reservoir of the present invention;

[0060] Figure 3 The present invention Figure 2 The enlarged view of point A in the middle;

[0061] Figure 4 is a top view of the water reservoir of the present invention;

[0062] Figure 5 The present invention Figure 4 Sectional view at the middle BB;

[0063] Figure 6 The present invention Figure 5 Enlarged view of point C in the middle;

[0064] Figure 7 The present invention Figure 4 Sectional view at DD in the middle;

[0065] Figure 8 The present invention Figure 7 Enlarged view of point E in the middle;

[0066] Fig. 9 It is a structural schematic diagram of the emergency filter assembly of the present invention in a closed state;

[0067] Fig.10 is a schematic structural diagram of the emergency filter assembly of the present invention in an open state;

[0068] The symbols in the figure are as follows: 1. self-pressurized water tower; 2. rainwater delivery pipe; 3. toilet water unit; 4. water storage tank; 5. first lifting pump; 6. primary filter assembly; 60. filter plate; 61. filter hole; 62. arc surface; 63. self-cleaning assembly; 630. connecting rod; 631. scraper; 632. counterweight; 633. windward plate; 634. protrusion; 7. emergency filter assembly; 70. valve body; 71. through hole; 72. valve core; 720 , jack; 73, sealing platform; 74, fixed arm; 75, swing arm; 76, top support; 77, filter screen; 8, canteen water mechanism; 9, vegetable washing water recovery assembly; 10, second lifting pump; 11, cross bar; 12, longitudinal bar; 13, adjustment assembly; 130, elastic telescopic rod; 131, top column; 1310, power end; 1311, main body; 132, support rod; 133, water passage; 134, water inlet; 135, water outlet. DETAILED DESCRIPTION

[0069] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0070] Embodiment 1:

[0071] This embodiment provides a water resource filtering and recycling system, including:

[0072] The building has a self-pressurized water tower 1 and a rainwater delivery pipe 2 installed on the roof, and a toilet water unit 3 connected to the self-pressurized water tower 1 is provided on each floor;

[0073] The podium is installed on the side of the building, and a water reservoir 4 is installed on the roof, and a first lifting pump 5 is provided between the water reservoir 4 and the self-pressurized water tower 1 for lifting the water in the water reservoir 4 into the self-pressurized water tower 1;

[0074] A filtering mechanism is installed on the water reservoir 4 and includes a primary filtering assembly 6 and an emergency filtering assembly 7;

[0075] The canteen water mechanism 8 is located in the podium and includes a vegetable washing water recovery component 9, and a second lifting pump 10 is provided between the vegetable washing water recovery component 9 and the water reservoir 4 for lifting the water in the vegetable washing water recovery component 9 into the water reservoir 4;

[0076] The rainwater delivery pipe 2 is used to deliver rainwater collected from the roof of the building to the water storage tank 4;

[0077] Meanwhile, the toilet water unit 3 may include a water tank, a float valve in the water tank, and a button for releasing water from the water tank, and retain an existing device for flushing toilets with tap water in each floor of the building, that is, flushing toilets with tap water when there is no water in the self-pressurized water tower 1;

[0078] The self-pressurized water tower 1 is a traditional water tower that relies on height difference to supply water, and the volume and water storage capacity of the water reservoir 4 depend on the supporting strength of the podium, and the first lifting pump 5 and the second lifting pump 10 are both traditional lifting pumps, which are known to those skilled in the art in the prior art and will not be described in detail here;

[0079] In addition, filters are provided at the starting end of the rainwater delivery pipe 2 and the starting end of the vegetable washing water recovery component 9. Specifically, the filter connected to the vegetable washing water recovery component 9 can adopt a solid-liquid separation device and an oil-water separation device. The specific structures thereof are all prior arts, which can be known to those skilled in the art on traditional filters and will not be described in detail here.

[0080] In order to further improve the water-saving effect, a grey water purification mechanism is installed on each floor of the building to pass the waste water from the wash basin and water dispenser through the filter tray and then enter the water collection tank set up on that floor. The booster pump pumps the waste water into the ultrafiltration water purifier to complete the recycling and filtration. The filtered water is then used for floor cleaning on that floor.

[0081] In seasons with abundant rainfall, the water in the self-pressurized water tower 1 can be used for green irrigation. It is worth mentioning that water can be delivered from the reservoir 4 to the self-pressurized water tower 1 by adopting wind-solar complementary water-lifting measures or by using off-peak electricity for pumping water, thereby reducing the energy consumption of the first booster pump 5 and reducing operating costs.

[0082] It can be seen from this embodiment that by collecting rainwater and canteen vegetable washing water and using them in the toilet water unit 3, it is possible to recycle rainwater well and achieve the effect of water saving;

[0083] At the same time, by setting up the self-pressure water tower 1, after the water in the water reservoir 4 is lifted to the self-pressure water tower 1 by the first lifting pump 5, the water pressure is provided only by the height difference, and the flushing in the toilet can be realized with low energy consumption, which has a good energy-saving effect;

[0084] In addition, rainwater is filtered through the primary filter component 6 to prevent rainwater from carrying external impurities or wind from driving external impurities into the water reservoir 4. At the same time, after impurities block the primary filter component 6, emergency filtering can be performed through the emergency filter component 7 to effectively ensure the filtering efficiency.

[0085] Embodiment 2:

[0086] This embodiment provides a water resource filtering and recycling system, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0087] The filtering mechanism also includes a plurality of horizontal bars 11 and a plurality of vertical bars 12 for dividing the top opening of the water reservoir 4 into a plurality of sub-inlets;

[0088] Among them, primary filter components 6 and emergency filter components 7 are installed at multiple sub-inlets.

[0089] It can be seen from this embodiment that by providing a plurality of sub-inlets, rainwater can be effectively collected, and when a certain sub-inlet is blocked, water can be filtered and introduced through other sub-inlets.

[0090] Embodiment 3:

[0091] This embodiment provides a water resource filtering and recycling system, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0092] The primary filter assembly 6 comprises a filter plate 60 which is connected to the inner wall of the sub-inlet in a lifting and sliding manner, and the filter plate 60 is provided with a plurality of filter holes 61;

[0093] An adjusting assembly 13 is installed below the filter plate 60 and is used to open the emergency filter assembly 7 after the filter plate 60 is lowered.

[0094] It can be seen from the present embodiment that by adopting the setting of the filter plate 60, the water reservoir 4 can be shielded from the sun and insulated in hot and dry seasons, thereby reducing the evaporation of water resources. In addition, the filter plate 60, the water reservoir 4, and the air layer between the filter plate 60 and the water reservoir 4 can also provide the top floor of the podium with a sun-shielding and heat-insulating effect, thereby reducing the dependence of the top floor of the podium on refrigeration equipment in hot and dry seasons, thereby achieving a certain energy-saving effect.

[0095] Embodiment 4:

[0096] This embodiment provides a water resource filtering and recycling system, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0097] The filter plate 60 forms an arc surface 62 at the plurality of filter holes 61, and a self-cleaning component 63 is installed on the arc surface 62;

[0098] Wherein, the self-cleaning component 63 comprises:

[0099] The connecting rod 630 has two ends connected to the inner wall bearings of the sub-inlet respectively;

[0100] The scraper 631 is installed on the surface of the connecting rod 630 close to the arc surface 62, and a counterweight block 632 is embedded inside, and is used to scrape away impurities on the arc surface 62;

[0101] The windward plate 633 is mounted on the surface of the connecting rod 630 away from the arc surface 62 and is used to drive the scraper 631 to rotate around the connecting rod 630 when blown by the wind;

[0102] The arc surface 62 is provided with protrusions 634 on both sides along the rotation direction of the scraper 631 for limiting the rotation angle of the scraper 631;

[0103] At the same time, the protrusion 634 and the filter plate 60 adopt an integrated structure, and the arc surface 62 is directly formed on the filter plate 60, and the windward plate 633 and the scraper plate 631 adopt an integrated structure, and are fixedly connected to the connecting rod 630 by snap connection or interference fit, and the counterweight block 632 can be made of metal, such as iron, and the weight of the counterweight block 632 depends on actual needs, such as the size of the windward plate 633, which can be obtained by conventional tests by those skilled in the art, and will not be repeated here;

[0104] In addition, an embedding groove is opened on the inner wall of the sub-inlet for installing the bearing. At the same time, a cover plate is installed on the embedding groove to limit the position of the bearing and ensure convenient disassembly and assembly.

[0105] It can be seen from the present embodiment that by using the windward plate 633 to drive the scraper 631 to scrape away the impurities on the filter plate 60, the service life of the filter hole 61 can be effectively extended, and the setting of the arc surface 62 can increase the effective area of ​​the scraper 631 for scraping away the impurities on the filter plate 60, thereby improving the efficiency of scraping away the impurities, and the bearing connection at both ends of the connecting rod 630 can reduce the friction resistance of the rotation and reduce sticking.

[0106] Embodiment 5:

[0107] This embodiment provides a water resource filtering and recycling system, which, in addition to the technical solutions of the above embodiments, also has the following technical features: the emergency filtering component 7 includes:

[0108] The valve body 70 is mounted on the filter plate 60, and the filter plate 60 is provided with a through hole 71 at the valve body 70;

[0109] The valve core 72 is axially mounted on one side of the valve body 70 and has a sealing platform 73 on the outer side, which can be embedded in the through hole 71 to form a sealing fit with the valve body 70 and is used for opening and closing the through hole 71;

[0110] The fixed arms 74 are mounted on the filter plate 60 and two are symmetrically arranged along the axis of the valve body 70;

[0111] The swing arm 75 is connected to one end of the fixed arm 74 away from the filter plate 60;

[0112] The top support 76 is installed between the two swing arms 75 and installed on the side of the valve core 72 away from the valve body 70, and can move with the two swing arms 75;

[0113] The regulating assembly 13 is used to push open the valve core 72 to open the through hole 71 or pull back the valve core 72 to close the through hole 71;

[0114] At the same time, the valve body 70 and the filter plate 60 are of an integrated structure, while the fixed arm 74 , the swing arm 75 and the top support 76 are of an integrated structure and are fixedly connected to the filter plate 60 .

[0115] It can be seen from this embodiment that the valve core 72 can be switched between the state of opening the valve body 70 and the state of closing the valve body 70 by setting the top support 76, and is fixed and maintained in the two states by the fixed arm 74 and the swing arm 75. Specifically, when the valve core 72 opens or closes the valve body 70, the swing arm 75 undergoes a process of bending deformation and then recovering to its original state;

[0116] Therefore, the valve core 72 is pushed open to open the through hole 71 by adjusting the component 13, and the through hole 71 is closed by pulling back the valve core 72, which is performed during the filtering lifting process. That is to say, as the accumulated water increases, the filter plate 60 moves down, and the through hole 71 is opened for emergency filtration. Conversely, the accumulated water decreases, the filter plate 60 moves up, and the through hole 71 is closed again to prevent the through hole 71 from being exposed to the outside and being blocked by impurities, thereby losing the emergency filtering effect, thereby effectively extending the service life of the filtering mechanism and ensuring the collection of rainwater and its input into the water storage tank 4 after filtration.

[0117] Embodiment 6:

[0118] This embodiment provides a water resource filtering and recycling system, which, in addition to the technical solutions of the above embodiments, also has the following technical features, including:

[0119] The filter screen 77 is sleeved on the valve core 72 , and one end of the filter screen 77 is connected to the sealing platform 73 , and the other end of the filter screen 77 is connected to the valve body 70 .

[0120] It can be seen from this embodiment that by setting the filter 77, the filtering effect during emergency filtering can be improved, and impurities can be prevented from entering the water reservoir 4 during emergency filtering, thereby effectively ensuring the filtration of rainwater collection;

[0121] The two ends of the filter screen 77 are connected to the sealing platform 73 and the valve body 70 respectively, so that the filter screen 77 can be used as a length control element to limit the distance that the swing wall moves the top support 76 and the valve core 72 away from the valve body 70.

[0122] Embodiment 7:

[0123] This embodiment provides a water resource filtering and recycling system, which, in addition to the technical solutions of the above embodiments, also has the following technical features:

[0124] The filter screen 77 is conical or cylindrical, and when the sealing platform 73 is sealed with the valve body 70, the conical or cylindrical wall of the filter screen 77 protrudes and bends radially away from the axis.

[0125] It can be seen from the present embodiment that by setting the filter screen 77 into a conical or cylindrical shape and adopting three-dimensional filtration, it is convenient to ensure the filtration area, and the sealing platform 73 connected to one end of the filter screen 77 is movable, that is, when the sealing platform 73 closes the through hole 71 on the valve body 70, the conical or cylindrical wall of the filter screen 77 protrudes and bends radially away from the axis, and when the through hole 71 is opened, the filter screen 77 is in a flattened state. That is to say, in the process of opening and closing the through hole 71, the filter screen 77 switches between flattening and bending, which can effectively shake off the impurities adhered to the filter screen 77 due to filtration, and has a good self-cleaning effect.

[0126] Embodiment 8:

[0127] This embodiment provides a water resource filtering and recycling system, which, in addition to the technical solutions of the above embodiments, also has the following technical features. The regulating component 13 includes:

[0128] The elastic telescopic rod 130 is installed in the water reservoir 4, and the bottom end is connected to the bottom wall of the water reservoir 4, and the top end is connected to the filter screen 77;

[0129] The top column 131 is installed in the water reservoir 4 by providing a support rod 132, and is arranged corresponding to the through hole 71, and is used to embed the top end into the valve core 72 and push the valve core 72 open when the filter plate 60 moves downward;

[0130] The top column 131 is provided with a water passage 133 in the axial direction, and a water inlet 134 and a water outlet 135 are respectively provided in the radial direction at both ends of the axial direction, and when the top column 131 pushes the valve core 72, the water inlet 134 passes through the through hole 71 and corresponds to the filter screen 77;

[0131] Meanwhile, the elastic telescopic rod 130 may be a conventional device with a spring built into the telescopic rod, and its specific structure will not be described in detail herein.

[0132] It can be seen from the present embodiment that by setting the top column 131 in the water reservoir 4 and setting the top column 131 corresponding to the through hole 71, that is, when the filter plate 60 moves downward due to excessive accumulated rainwater, the top column 131 will enter the through hole 71 and embed the valve core 72 to push open the valve core 72, thereby opening and conducting the through hole 71. After the filter plate 60 moves upward, the valve core 72 will be pulled to re-close the through hole 71, effectively preventing the through hole 71 from being exposed when no emergency filtering is required;

[0133] In addition, the through hole 71 is conducted by means of a water passage 133 axially opened on the top column 131 and a water inlet 134 and a water outlet 135 radially opened at both ends of the axial direction. That is to say, by directing the water flow from the top column 131, the coordination between the top column 131 and the through hole 71 can be ensured, which has a good effect of movement limitation and guidance, ensuring that the top column 131 can push open the valve core 72 and pull back the valve core 72, thereby improving stability.

[0134] Embodiment 9:

[0135] This embodiment provides a water resource filtering and recycling system, which, in addition to the technical solutions of the above embodiments, also has the following technical features. The top column 131 includes:

[0136] The power end 1310 and the valve core 72 are provided with a plug hole 720 which forms a static friction fit with the surface of the power end 1310 , and the power end 1310 can carry the valve core 72 to move, and when the valve core 72 is pulled back to close the through hole 71 , it is separated from the valve core 72 under the obstruction of the valve body 70 ;

[0137] The main body 1311 is connected to the end of the power end 1310 away from the valve core 72;

[0138] When the power end 1310 is embedded in the valve core 72, its surface forms a static friction fit with the plug hole 720 of the valve core 72. Therefore, the material of the surface of the plug hole 720 of the valve core 72 and / or the outer surface of the power end 1310 can be selected, such as a rubber material, which can mainly ensure the static friction fit force.

[0139] At the same time, the front end of the power end 1310 is chamfered to form a guide end, which is used to prevent the power end 1310 from deviating or deviating when it is embedded in the valve core 72. In the prior art, the conical surface formed by chamfering is used for centering and alignment, which is a conventional technical means, and these structures will not be repeated;

[0140] In actual use, an annular groove can be opened on the surface of the power end 1310 and an annular protrusion 634 can be set on the surface of the socket 720 of the valve core 72, both of which are made of rubber. In other words, this method can be used to ensure the force of static friction cooperation to cope with the situation where the force of static friction cooperation is insufficient. It is a conventional technical means to choose according to needs and will not be repeated here.

[0141] It can be seen from this embodiment that, through the cooperation between the power end 1310 and the socket 720, when the through hole 71 is opened, the power end 1310 is embedded in the socket 720 and pushes the valve core 72 to move. When the through hole 71 needs to be closed, the power end 1310 will pull back the valve core 72 to move and make it seal with the valve body 70 to ensure that the valve core 72 is pulled back to its original position.

[0142] Embodiment 10:

[0143] This embodiment provides a filtration method of a water resource filtration and recycling system, comprising the following steps:

[0144] S1: Rainwater is collected through the water reservoir 4 on the roof of the podium building, and the rainwater first enters the sub-inlet and falls on the filter plate 60;

[0145] S2: Filtering rainwater through the filter holes 61 on the filter plate 60 to prevent impurities from entering the water reservoir 4;

[0146] S3: When there is wind, the wind blows the windward plate 633 to drive the scraper 631 to swing and scrape away the impurities on the curved surface 62;

[0147] S4: When there is no wind or the scraper 631 cannot scrape away the impurities on the curved surface 62, the filter hole 61 is blocked by impurities and rainwater continues to accumulate on the filter plate 60, or when the amount of rainwater entering the sub-inlet is greater than the amount entering the filter hole 61, rainwater continues to accumulate on the filter plate 60;

[0148] S5: When too much rainwater accumulates on the filter plate 60, gravity causes the filter plate 60 to compress the elastic telescopic rod 130 and move downward;

[0149] S6: As the filter plate 60 moves downward, the power end 1310 of the top column 131 passes through the through hole 71 and is inserted into the insertion hole 720 to form a static friction fit, while pushing the valve core 72 to open the through hole 71 and unfold the filter screen 77;

[0150] S7: Rainwater on the filter plate 60 passes through the filter screen 77, the water inlet 134, the water passage 133 and the water outlet 135 in sequence and enters the water reservoir 4;

[0151] S8: When the rainwater accumulated on the filter plate 60 decreases and the gravity is reduced, the filter plate 60 moves upward under the action of the elastic telescopic rod 130, and the power end 1310 of the top column 131 drives the valve core 72 to pull back, and is blocked by the valve body 70 and disengages, and the sealing platform 73 and the valve body 70 are sealed and matched to close the through hole 71;

[0152] It can be seen from the present embodiment that the rainwater entering the water reservoir 4 is filtered by using the filter plate 60, so as to effectively block the impurities that may be carried in the rainwater and prevent the impurities from entering the water reservoir 4 when the opening of the water reservoir 4 is exposed to the air. In addition, the impurities on the arc surface 62 are scraped off by the scraper 631 in the windy season, so as to effectively extend the effective time of the primary filtration of the filter plate 60 and extend the maintenance cycle. In addition, when the impurities cannot be scraped off or there is no wind, the rainwater will accumulate on the filter plate 60, so as to prompt the filter plate 60 to move down to open the emergency filtration, so as to effectively ensure the collection of rainwater. At the same time, when emergency filtration is not needed, the through hole 71 used for emergency filtration is in a closed state, which can effectively ensure the effectiveness of emergency filtration and prevent the through hole 71 from being exposed to the outside for a long time and being blocked by impurities.

[0153] Among them, the impurities on the filter plate 60 can be cleaned by the cleaning staff using a traditional handheld vacuum cleaner, and the multiple horizontal bars 11 and vertical bars 12 used to form the sub-inlet on the water reservoir 4 can be used as a walkway for the cleaning staff to clean the impurities using a traditional handheld vacuum cleaner, thereby ensuring the convenience and efficiency of cleaning the impurities on the filter plate 60.

[0154] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A water resource filtering and recycling system, characterized in that: include: A building, wherein a self-pressurized water tower (1) and a rainwater delivery pipe (2) are installed on the roof, and a toilet water unit (3) connected to the self-pressurized water tower (1) is provided on each floor, wherein the rainwater delivery pipe (2) is used to deliver rainwater collected on the roof of the building to a water storage tank (4); A podium is installed on the side of the building, and a water reservoir (4) is installed on the roof. A first lifting pump (5) is provided between the water reservoir (4) and the self-pressurized water tower (1) for lifting water in the water reservoir (4) into the self-pressurized water tower (1); A filtering mechanism is installed on the water reservoir (4) and comprises a primary filtering component (6) and an emergency filtering component (7); The canteen water-using mechanism (8) is located in the podium building and comprises a vegetable-washing water recovery component (9), and a second lifting pump (10) is provided between the vegetable-washing water recovery component (9) and the water reservoir (4) for lifting the water in the vegetable-washing water recovery component (9) into the water reservoir (4); The filtering mechanism further comprises a plurality of horizontal bars (11) and a plurality of vertical bars (12) for dividing the top opening of the water reservoir (4) into a plurality of sub-inlets, wherein the primary filtering assembly (6) and the emergency filtering assembly (7) are installed at each of the plurality of sub-inlets; The primary filter assembly (6) comprises a filter plate (60) which is slidably connected to the inner wall of the sub-inlet in a lifting manner, and the filter plate (60) is provided with a plurality of filter holes (61), wherein an adjustment assembly (13) is installed below the filter plate (60) and is used to open the emergency filter assembly (7) after the filter plate (60) is lowered; The filter plate (60) forms an arcuate surface (62) at the plurality of filter holes (61), and a self-cleaning component (63) is installed on the arcuate surface (62); Wherein, the self-cleaning component (63) comprises: A connecting rod (630), both ends of which are respectively connected to the inner wall bearings of the sub-inlet; A scraper (631) is mounted on the surface of the connecting rod (630) close to the curved surface (62), and has a counterweight (632) embedded therein, and is used to scrape away impurities on the curved surface (62); A windward plate (633) is mounted on a surface of the connecting rod (630) away from the curved surface (62) and is used to drive the scraper (631) to rotate around the connecting rod (630) when blown by wind; Wherein, protrusions (634) for limiting the rotation angle of the scraper (631) are provided on both sides of the arc-shaped surface (62) along the rotation direction of the scraper (631).

2. The water resource filtration and recycling system according to claim 1, characterized in that: The emergency filter assembly (7) comprises: A valve body (70) is mounted on the filter plate (60), and the filter plate (60) is provided with a through hole (71) at the valve body (70); A valve core (72) is axially mounted on one side of the valve body (70) and is provided with a sealing platform (73) on the outer side, which can be embedded in the through hole (71) to form a sealing fit with the valve body (70) and is used for opening and closing the through hole (71); A fixed arm (74) is mounted on the filter plate (60), and two fixed arms (74) are symmetrically provided along the axis of the valve body (70); A swing arm (75) connected to an end of the fixed arm (74) away from the filter plate (60); A top support (76) is installed between the two swing arms (75) and on a side of the valve core (72) away from the valve body (70), and is capable of moving with the two swing arms (75); The regulating assembly (13) is used to push open the valve core (72) to open the through hole (71) or to pull back the valve core (72) to close the through hole (71).

3. The water resource filtering and recycling system according to claim 2, characterized in that: Also includes: The filter screen (77) is sleeved on the valve core (72), one end of which is connected to the sealing platform (73) and the other end of which is connected to the valve body (70).

4. The water resource filtering and recycling system according to claim 3 is characterized in that: The filter screen (77) is in a conical or cylindrical shape, and when the sealing platform (73) and the valve body (70) are in sealing cooperation, the conical or cylindrical wall of the filter screen (77) protrudes and bends in a radial direction away from the axis.

5. The water resource filtering and recycling system according to claim 3, characterized in that: The regulating component (13) comprises: An elastic telescopic rod (130) is installed in the water reservoir (4), with its bottom end connected to the bottom wall of the water reservoir (4) and its top end connected to the filter screen (77); A top column (131) is installed in the water reservoir (4) by means of a support rod (132) and is arranged corresponding to the through hole (71). When the filter plate (60) moves downward, the top end is embedded in the valve core (72) and the valve core (72) is pushed open. The top column (131) is provided with a water passage (133) in the axial direction, and a water inlet (134) and a water outlet (135) are respectively provided in the radial direction at two axial ends, and when the top column (131) pushes open the valve core (72), the water inlet (134) passes through the through hole (71) and corresponds to the filter screen (77).

6. The water resource filtering and recycling system according to claim 5, characterized in that: The top column (131) comprises: The power end (1310) is provided with a plug hole (720) on the valve core (72) and forms a static friction fit with the surface of the power end (1310), and the power end (1310) can carry the valve core (72) to move, and when the valve core (72) is pulled back to close the through hole (71), it is separated from the valve core (72) under the obstruction of the valve body (70); The main body (1311) is connected to an end of the power end (1310) away from the valve core (72).

7. A filtering method applied to the water resource filtering and recycling system according to any one of claims 1 to 6, characterized in that: The following steps are involved: S1: Rainwater is collected through the water storage tank (4) on the roof of the podium building, and the rainwater first enters the sub-inlet and falls on the filter plate (60); S2: filtering rainwater through the filter holes (61) on the filter plate (60) to prevent impurities from entering the water storage tank (4); S3: When there is wind, the wind blows the windward plate (633) to drive the scraper (631) to swing and scrape away impurities on the curved surface (62); S4: when there is no wind or the scraper (631) is unable to scrape away impurities on the curved surface (62), the filter holes (61) are blocked by impurities and rainwater continues to accumulate on the filter plate (60); or when the amount of rainwater entering the sub-inlet is greater than the amount entering the filter holes (61), rainwater continues to accumulate on the filter plate (60); S5: When too much rainwater accumulates on the filter plate (60), gravity causes the filter plate (60) to compress the elastic telescopic rod (130) and move downward; S6: As the filter plate (60) moves downward, the power end (1310) of the top column (131) passes through the through hole (71) and is inserted into the insertion hole (720) to form a static friction fit, while pushing the valve core (72) to open the through hole (71) and unfold the filter screen (77); S7: Rainwater on the filter plate (60) passes through the filter screen (77), the water inlet (134), the water passage (133) and the water outlet (135) in sequence and enters the water reservoir (4); S8: When the amount of rainwater accumulated on the filter plate (60) decreases and the gravity is reduced, the filter plate (60) moves upward under the action of the elastic telescopic rod (130), the power end (1310) of the top column (131) drives the valve core (72) to be pulled back, and is blocked by the valve body (70) and disengaged, and the sealing platform (73) and the valve body (70) are sealed and matched to close the through hole (71).

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