A graded water purification device

Abstract

The present invention discloses a hierarchical water purification device, which relates to the field of water purification devices and includes a water purification tank, wherein two groups of coaxial water pipes are horizontally arranged inside the water purification tank, a sewage purification zone is formed between the two groups of water pipes, a rotating turntable is provided below the sewage purification zone, and filter components arranged in an equidistant ring around the axis of the turntable are provided on the periphery of the turntable, and the filter components are connected to the interiors of the two groups of water pipes when located in the sewage purification zone. The present invention arranges multiple groups of filter components on the periphery of the turntable, so that when the multi-stage filter element in one group of filter components reaches "adsorption saturation", it can be transferred out of the sewage purification zone, and a new filter component can be moved to the sewage purification zone to purify the sewage, and the filter component that has purified water can be reused after being cleaned by a cleaning component, thereby eliminating the need for frequent replacement of the multi-stage filter element, making the use of the device more convenient.

Description

Technical Field

[0001] The present invention relates to the field of water purification devices, and in particular to a hierarchical water purification device. Background Art

[0002] When purifying water, water purification devices in the prior art pass sewage or hard water through several filter plates or filter elements. The filter elements generally include activated carbon filter elements, ultrafiltration membrane filter elements, etc. Each filter element is used to filter impurities or minerals of different particle sizes.

[0003] Most of the filter elements in the prior art are directly plugged into the interior of the water purification device and connected to the water supply pipe. The filter element purifies the sewage flowing through the water supply pipe. However, in actual use, especially in areas with serious water pollution, the filter element often quickly reaches a state of "adsorption saturation" and can no longer continue to purify the water. In this case, the filter element needs to be replaced in time. However, due to the poor water quality, the filter element often needs to be replaced every few weeks or days, which is very troublesome. Moreover, the replaced filter element cannot clean itself and can only be discarded, resulting in waste.

[0004] Therefore, it is necessary to invent a hierarchical water purification device to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide a hierarchical water purification device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hierarchical water purification device, comprising a water purification tank, wherein two groups of coaxial water pipes are horizontally arranged inside the water purification tank, a sewage purification area is formed between the two groups of water pipes, a rotating turntable is provided below the sewage purification area, the axis of the turntable is parallel to the axis of the water pipe, and filter components are arranged in an equidistant ring around the axis of the turntable at the periphery of the turntable, the filter components are connected to the outer periphery of the turntable by connecting rods, and when the filter components are located in the sewage purification area, they are communicated with the interiors of the two groups of water pipes, and one end of one group of water pipes is connected to the water tap on the side wall of the water purification tank. The heads are interconnected, and one end of the other group of water pipes away from the faucet is interconnected with the sewage tank on the top of the clean water tank, and a water pump is provided inside the sewage tank to pump water into the water pipe. The water pipe is a cylindrical structure with sealed ends. The ends of the two groups of water pipes close to each other are each provided with a water delivery hole. A second sealing plug is provided at a position corresponding to the water delivery hole inside the water pipe. The side of the second sealing plug facing the sewage purification area is fixedly connected to the pressing rod, and the side of the second sealing plug facing away from the sewage purification area is fixedly connected to the fixing rod on the inner wall of the water pipe through a compression spring. The water delivery hole is opened when the filter assembly is located in the sewage purification area;

[0007] The filter assembly includes an outer shell arranged along the axial direction of the water supply pipe, and a multi-stage filter element coaxial therewith is provided inside the outer shell. The outer shell is a cylindrical structure sealed at both ends, and the multi-stage filter element is a cylindrical structure open at both ends. A water inlet channel is formed between the multi-stage filter element and the outer shell, and a water inlet is provided at one end of the outer shell close to the sewage tank. A water supply channel for connecting the water inlet channel and the water inlet is provided in the inner wall layer structure of the outer shell. A clean water outlet that is interconnected with the interior of the multi-stage filter element is provided at the end of the outer shell away from the sewage tank. The interiors of the water inlet and the clean water outlet are both provided with filter screens flush with the end of the outer shell. When the outer shell moves to a position coaxial with the water supply pipe, the water inlet corresponds to the water supply holes on the group of water supply pipes close to the sewage tank, and the clean water outlet corresponds to the water supply holes on the group of water supply pipes away from the sewage tank. The interior of the clean water tank is provided with a cleaning component for cleaning the multi-stage filter element inside the outer shell that deviates from the sewage purification area.

[0008] Preferably, the cleaning component includes a water spray pipe fixedly connected to the inner wall of the outer shell, the water spray pipe is located inside the multi-stage filter element, and the water spray pipe and the multi-stage filter element are parallel to each other, a high-pressure water outlet is provided on the surface of the water spray pipe, and a one-way valve is provided inside the high-pressure water outlet, and a high-pressure water inlet that is interconnected with the interior of the water spray pipe is provided at one end of the outer shell away from the sewage tank, and a water injection component for injecting water into the high-pressure water inlet is provided inside the clean water tank. When the high-pressure water inlet on the outer shell is connected to the water injection component, the outer shell is in a position deviating from the sewage purification area, and the high-pressure water outlet on the water spray pipe inside the outer shell is located at the bottom of the water spray pipe, the multi-stage filter element is rotatably connected to the interior of the outer shell, and the multi-stage filter element can rotate around its own axis, and the outer shell is provided with a water outlet component for discharging water sprayed from the high-pressure water outlet.

[0009] Preferably, the water injection assembly includes a high-pressure water pipe located inside the clean water tank, an electromagnetic valve is provided inside the high-pressure water pipe, and when the high-pressure water inlet on the outer shell is connected to the high-pressure water pipe, the electromagnetic valve inside the high-pressure water pipe opens.

[0010] Preferably, a turbine is provided at one end of the multi-stage filter element near the water inlet, an inflation component for injecting gas into the multi-stage filter element is provided inside the clean water tank, and the gas moves along the axial direction of the turbine, an air outlet pipe is provided inside the water inlet and is coaxially arranged with the multi-stage filter element, the air outlet pipe is connected to the interior of the multi-stage filter element, and a one-way valve is provided inside the air outlet pipe.

[0011] Preferably, the inflation component includes an air pipe horizontally arranged inside the clean water tank, the air pipe is located close to the high-pressure water pipe, and an electromagnetic valve is provided inside the air pipe. When the clean water outlet on the outer shell is connected to the air pipe, the electromagnetic valve on the air pipe opens.

[0012] Preferably, the water outlet assembly includes flushing water outlets equidistantly arranged on the outer periphery of the outer shell away from the turntable, and a first sealing plug is provided on the outer periphery of the outer shell to seal the flushing water outlet. The first sealing plug can move back and forth along the axial direction of the outer shell on the outer periphery of the flushing water outlet.

[0013] Preferably, the first sealing plugs are fixedly connected by a movable rod, and the end of the movable rod away from the sewage tank is fixedly connected to the fixed plate on the outer periphery of the outer shell by a compression spring, and the end of the movable rod close to the sewage tank extends out of the end surface of the outer shell close to the sewage tank. A protrusion is provided in the clean water tank on the moving path of the movable rod, and when the high-pressure water inlet on the outer shell is connected to the high-pressure water pipe, the protrusion squeezes the movable rod toward the fixed plate.

[0014] Preferably, the outer periphery of the multi-stage filter element is evenly provided with soft bristle components that contact the inner wall of the outer shell. The soft bristle components are arranged in an equidistant ring around the axis of the multi-stage filter element on the outer periphery of the multi-stage filter element, and the soft bristle components are arranged in an equidistant linear manner along the length direction of the multi-stage filter element on the outer periphery of the multi-stage filter element.

[0015] Preferably, the soft bristle assembly includes elastic bristles, magnetic balls and a columnar cavity. The elastic bristles are fixedly connected to the outer periphery of the multi-stage filter element. The interior of the elastic bristles is provided with a columnar cavity along its length direction, and a number of magnetic balls are equidistantly arranged inside the columnar cavity.

[0016] Preferably, an annular groove surrounding the cylindrical cavity is provided at one end of the elastic bristles facing the multi-stage filter element, and a plurality of connecting grooves interconnected with the interior of the annular groove are provided on the outer periphery of the elastic bristles, and a spherical shell-shaped elastic diaphragm protruding toward the annular groove is fixed inside the connecting groove.

[0017] The technical effects and advantages of the present invention are as follows:

[0018] 1. The present invention arranges multiple groups of filter assemblies on the periphery of the turntable. When the multi-stage filter element in one group of filter assemblies reaches "adsorption saturation", it can be moved out of the sewage purification area and a new filter assembly can be moved to the sewage purification area to purify the sewage. The filter assembly after the purified water can be cleaned by the cleaning assembly and reused, thereby eliminating the need for frequent replacement of the multi-stage filter element, making the use of the device more convenient.

[0019] 2. The multi-stage filter element can be rotated inside the outer shell, so that different areas on the multi-stage filter element can be rotated to the area below the high-pressure water outlet for "backwashing" operation, so that the multi-stage filter element can be fully cleaned. The reason why the high-pressure water outlet is not evenly arranged on the periphery of the water spray pipe is to prevent the high-pressure water sprayed upward from the high-pressure water outlet from flushing the multi-stage filter element at the top, and the flushed sewage will fall on the top of the multi-stage filter element again, avoiding ineffective flushing operation;

[0020] 3. When the multi-stage filter element rotates, the soft brush assembly can brush the inner wall of the outer shell, and the soft brush assembly is relatively soft to avoid wear on the inner wall of the outer shell;

[0021] 4. The magnetic balls are magnetic and do not affect the "flexibility" of the elastic bristles. They can adsorb magnetic impurities such as rust that enter between the outer shell and the multi-stage filter element on the surface of the elastic bristles, preventing them from adhering to the inner wall of the outer shell or getting stuck in the pores of the multi-stage filter element. In other words, the elastic bristles collect magnetic impurities such as rust. When the multi-stage filter element is backwashed, when high-pressure water passes through the bottom of the multi-stage filter element, it will wash down the impurities on the elastic bristles at the bottom of the multi-stage filter element, thereby removing magnetic impurities such as rust from the elastic bristles.

[0022] 5. Since the elastic diaphragm is recessed toward the inside of the connecting groove, the rust and other magnetic impurities absorbed by the magnetic balls will mostly be collected in the recessed part of the elastic diaphragm. Obviously, the rust and other magnetic impurities located in the recessed part of the elastic diaphragm are not easily affected by the impact of the water flow and are not easily separated from the elastic bristles. When the multi-stage filter element needs to be backwashed, part of the high-pressure water passing through the multi-stage filter element will enter the inside of the annular groove and impact the elastic diaphragm toward the outside of the elastic bristles. The elastic diaphragm will expand and deform and bulge out of the outer port of the connecting groove. At this time, the rust and other magnetic impurities on the surface of the elastic diaphragm outside the elastic bristles can be easily washed down by the high-pressure water. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 Schematic diagram of the external structure of the hierarchical water purification device of the present invention.

[0024] Figure 2 Schematic diagram of the internal structure of the hierarchical water purification device of the present invention.

[0025] Figure 3 Schematic diagram of the internal structure of the outer shell of the present invention.

[0026] Figure 4 For the present invention Figure 2 Enlarged structural diagram at point A in the middle.

[0027] Figure 5 For the present invention Figure 2 Enlarged structural diagram at point B in the middle.

[0028] Figure 6 For the present invention Figure 3 Enlarged structural diagram at point C in the middle.

[0029] Figure 7 Schematic diagram of the internal structure of the elastic bristles of the present invention.

[0030] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point D in the middle.

[0031] Figure: 1, clean water tank; 2, sewage tank; 3, faucet; 4, water pipe; 5, outer shell; 6, connecting groove; 7, turntable; 8, high-pressure water pipe; 10, protrusion; 11, controller; 12, water collection tank; 13, water pump; 14, multi-stage filter element; 15, elastic diaphragm; 16, water inlet; 17, water channel; 18, air outlet; 19, turbine; 20, water spray pipe; 21, clean water outlet; 22, high Pressurized water inlet; 23. Movable rod; 24. First sealing plug; 25. Flushing water outlet; 26. Elastic bristles; 27. Fixed plate; 28. Limiting slider; 29. ​​Limiting slide groove; 30. Fixed rod; 31. Second sealing plug; 32. Water hole; 33. Pressing rod; 34. High-pressure water outlet; 35. Position sensor; 36. Air pipe; 37. Magnetic ball; 38. Columnar cavity; 39. Annular groove. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the invention belongs. The words "first", "second" and similar terms used in the patent application specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "a" or "an" do not necessarily indicate a quantity limitation. Words such as "include" or "comprising" mean that the elements or objects preceding the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Words such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0034] The present invention provides Figures 1-8A hierarchical water purification device is shown, comprising a clean water tank 1, wherein two groups of coaxial water pipes 4 are horizontally arranged inside the clean water tank 1, a sewage purification zone is formed between the two groups of water pipes 4, a rotating turntable 7 is provided below the sewage purification zone, the axis of the turntable 7 is parallel to the axis of the water pipe 4, and a filter assembly is arranged in an equidistant ring around the axis of the turntable 7 at the periphery of the turntable 7, the filter assembly is connected to the outer periphery of the turntable 7 by a connecting rod, and when the filter assembly is located in the sewage purification zone, it is connected to the interior of the two groups of water pipes 4, one end of one group of water pipes 4 is connected to the faucet 3 on the side wall of the clean water tank 1, and the other group of water pipes 4 is far away. The end away from the faucet 3 is connected to the sewage tank 2 on the top of the clean water tank 1, and a water pump 13 is provided inside the sewage tank 2 to pump water into the water pipe 4. The water pipe 4 is a cylindrical structure with sealed ends. The two groups of water pipes 4 are each provided with a water hole 32 at one end close to each other. A second sealing plug 31 is provided at a position corresponding to the water hole 32 inside the water pipe 4. The side of the second sealing plug 31 facing the sewage purification area is fixedly connected to the pressing rod 33. The side of the second sealing plug 31 facing away from the sewage purification area is fixedly connected to the fixing rod 30 on the inner wall of the water pipe 4 via a compression spring. When the filter assembly is located in the sewage purification area, the water hole 32 is opened.

[0035] The filter assembly includes an outer shell 5 arranged axially along the water pipe 4, a multi-stage filter element 14 coaxial therewith is provided inside the outer shell 5, the outer shell 5 is a cylindrical structure sealed at both ends, the multi-stage filter element 14 is a cylindrical structure opened at both ends, a water inlet channel is formed between the multi-stage filter element 14 and the outer shell 5, an end of the outer shell 5 close to the sewage tank 2 is provided with a water inlet 16, an inner wall layer structure of the outer shell 5 is provided with a water channel 17 for connecting the water inlet channel and the water inlet 16, and an end of the outer shell 5 away from the sewage tank 2 is provided with a water inlet 16. The clean water outlet 21 is interconnected inside the core 14, and the water inlet 16 and the clean water outlet 21 are both provided with a filter screen flush with the end of the outer shell 5. When the outer shell 5 moves to a position coaxial with the water pipe 4, the water inlet 16 corresponds to the water holes 32 on the group of water pipes 4 close to the sewage tank 2, and the clean water outlet 21 corresponds to the water holes 32 on the group of water pipes 4 away from the sewage tank 2. The interior of the clean water tank 1 is provided with a cleaning component for cleaning the multi-stage filter element 14 inside the outer shell 5 that deviates from the sewage purification area.

[0036] During actual operation of the present invention, the water inside the sewage tank 2 is pumped into the set of water pipes 4 close to the sewage tank 2 by the action of the water pump 13, and then is purified through the filter components in the sewage purification area. The purified water is discharged from the faucet 3 through the set of water pipes 4 away from the sewage tank 2. Since the filter components in the present invention are arranged in an equidistant ring shape on the periphery of the turntable 7, and the turntable 7 can rotate around its own axis, when one set of filter components reaches "adsorption saturation", the turntable 7 can be controlled to rotate by the power mechanism, so that the next set of unfiltered filter components is moved to the sewage purification area. At this time, the filter components are interconnected with the interiors of the two sets of water pipes 4. The sewage will be purified when passing through the filter components. A cleaning component for cleaning the filter components is also provided below the water pipes 4. The cleaning component can clean the filter components after "adsorption saturation" so that they can be reused again.

[0037] The actual working principle of the filter assembly is as follows: when the outer shell 5 moves to the sewage purification area, the two ends of the outer shell 5 will respectively contact the ends of the two sets of water pipes 4 that are close to each other, and the two ends of the outer shell 5 will squeeze the pressing rod 33 fixedly connected to the second sealing plug 31. The pressing rod 33 drives the second sealing plug 31 to move in the direction close to the fixing rod 30 and separate from the end of the water hole 32. At this time, the sewage entering the inside of the set of water pipes 4 close to the sewage tank 2 will pass through the water inlet 16 and the water channel 17 into the inside of the water inlet channel, and then pass through the multi-stage filter element 14 to be purified and flow out from the clean water outlet 21. The clean water flowing out of the clean water outlet 21 passes through the set of water pipes 4 away from the sewage tank 2 and enters the faucet 3. When the multi-stage filter element 14 inside the set of outer shells 5 reaches "adsorption saturation", it can be rotated to a position away from the sewage purification area, and the other set of outer shells 5 can be moved between the two sets of water pipes 4. The filter assembly removed from between the two sets of water pipes 4 will be cleaned by the cleaning assembly for subsequent reuse;

[0038] The present invention arranges multiple groups of filter components on the periphery of the turntable 7. When the multi-stage filter element 14 in one group of filter components reaches "adsorption saturation", it can be moved out of the sewage purification area, and a new filter component can be moved to the sewage purification area to purify the sewage. The filter component that has purified water can be cleaned by the cleaning component and reused, thereby eliminating the need for frequent replacement of the multi-stage filter element 14, making the use of the device more convenient.

[0039] Furthermore, in practical applications, the filter assembly can be detachably connected to the turntable 7, so that when the multi-stage filter elements 14 in all the filter assemblies have reached "adsorption saturation", the filter assembly can be replaced;

[0040] It should be noted that the water in the sewage tank 2 does not specifically refer to domestic sewage, industrial sewage, etc. in the traditional sense, but generally refers to untreated water, which can be hard water that cannot be directly drunk, or soft water with a low softening degree.

[0041] In order to flush the multi-stage filter element 14, the cleaning component includes a water spray pipe 20 fixedly connected to the inner wall of the outer shell 5, the water spray pipe 20 is located inside the multi-stage filter element 14, and the water spray pipe 20 and the multi-stage filter element 14 are parallel to each other. A high-pressure water outlet 34 is provided on the surface of the water spray pipe 20, and a one-way valve is provided inside the high-pressure water outlet 34. The outer shell 5 is provided with a high-pressure water inlet 22 that is interconnected with the interior of the water spray pipe 20 at one end away from the sewage tank 2. The interior of the clean water tank 1 is provided with a water injection component for injecting water into the high-pressure water inlet 22. When the high-pressure water inlet 22 on the outer shell 5 is connected to the water injection component, the outer shell 5 is in a position deviating from the sewage purification area, and the high-pressure water outlet 34 on the water spray pipe 20 inside the outer shell 5 is located at the bottom of the water spray pipe 20. The multi-stage filter element 14 is rotatably connected to the interior of the outer shell 5, and the multi-stage filter element 14 can rotate around its own axis. The outer shell 5 is provided with a water outlet component for discharging water sprayed from the high-pressure water outlet 34.

[0042] Specifically, the water injection assembly includes a high-pressure water pipe 8 located inside the clean water tank 1, and an electromagnetic valve is provided inside the high-pressure water pipe 8. When the high-pressure water inlet 22 on the outer shell 5 is connected to the high-pressure water pipe 8, the electromagnetic valve inside the high-pressure water pipe 8 is opened.

[0043] In actual operation, when it is necessary to clean the "adsorption saturated" multi-stage filter element 14 in the filter assembly, the outer shell 5 can be separated from the sewage purification area between the two sets of water pipes 4 by rotating the turntable 7, and the high-pressure water inlet 22 on the outer shell 5 corresponds to the position of the high-pressure water pipe 8, that is, the high-pressure water inlet 22 and the high-pressure water pipe 8 are connected to each other. At this time, the solenoid valve inside the high-pressure water pipe 8 is opened, and the high-pressure water inside the high-pressure water pipe 8 will enter the water spray pipe 20 through the high-pressure water inlet 22, and backwash the area corresponding to the high-pressure water outlet 34 on the multi-stage filter element 14. The flushed water enters the bottom of the outer shell 5 and is discharged from the water outlet assembly. In order to achieve the high-pressure water pipe 8, the high-pressure water inlet 22 is connected to the water pipe 8. To control the opening of the solenoid valve in the high-pressure water pipe 8, a position sensor 35 can be provided at one end of the high-pressure water pipe 8 close to the outer shell 5. The position sensor 35 and the solenoid valve inside the high-pressure water pipe 8 are electrically connected to the controller 11 provided in the clean water tank 1. When the position sensor 35 detects that the high-pressure water inlet 22 has moved to a position corresponding to the high-pressure water pipe 8, the position sensor 35 will transmit a signal to the controller 11, and the controller 11 controls the opening of the solenoid valve inside the high-pressure water pipe 8. In actual application, a water collection tank 12 can be placed below the water outlet assembly inside the clean water tank 1 to collect the cleaning water discharged from the water outlet assembly, and the water sprayed from the high-pressure water pipe 8 should be purified water.

[0044] The multi-stage filter element 14 can rotate inside the outer shell 5, so that different areas on the multi-stage filter element 14 can be rotated to the area below the high-pressure water outlet 34 for "backwashing" operation, so that the multi-stage filter element 14 can be fully cleaned. The reason why the high-pressure water outlet 34 is not evenly arranged on the periphery of the water spray pipe 20 is to prevent the high-pressure water sprayed upward from the high-pressure water outlet 34 from flushing the multi-stage filter element 14 located at the top, and the flushed sewage falls again on the top of the multi-stage filter element 14, thereby avoiding ineffective flushing operation.

[0045] In order to realize the rotation of the multi-stage filter element 14 along its own axis, so that the outer periphery of the multi-stage filter element 14 is evenly cleaned by the high-pressure water sprayed from the high-pressure water outlet 34, the multi-stage filter element 14 is provided with a turbine 19 at one end close to the water inlet 16, and the interior of the clean water tank 1 is provided with an inflation component for injecting gas into the interior of the multi-stage filter element 14, and the gas moves along the axial direction of the turbine 19, and the interior of the water inlet 16 is provided with an air outlet pipe 18 coaxially arranged with the multi-stage filter element 14, the air outlet pipe 18 is connected to the interior of the multi-stage filter element 14, and a one-way valve is provided inside the air outlet pipe 18.

[0046] The inflation component inflates the interior of the multi-stage filter element 14 through the purified water outlet 21. The gas entering the multi-stage filter element 14 will drive the rotation of the turbine 19, thereby driving the rotation of the multi-stage filter element 14. The gas entering the multi-stage filter element 14 is finally discharged from the air outlet pipe 18. A one-way valve is provided inside the air outlet pipe 18. When the filter component is in the purified water state, the water entering from the water inlet 16 will not directly pass through the air outlet pipe 18 into the interior of the multi-stage filter element 14.

[0047] Specifically, such as Figure 2 and Figure 5 As shown in the figure, the inflation component includes an air pipe 36 horizontally arranged inside the clean water tank 1. The air pipe 36 is located near the high-pressure water pipe 8. An electromagnetic valve is provided inside the air pipe 36. When the clean water outlet 21 on the outer shell 5 is connected to the air pipe 36, the electromagnetic valve on the air pipe 36 is opened.

[0048] In actual operation, when the outer shell 5 moves to a position away from the sewage purification area, and the high-pressure water inlet 22 on the outer shell 5 moves to a position connected to the high-pressure water pipe 8, the clean water outlet 21 is also connected to the air pipe 36. At this time, the controller 11 will control the solenoid valve inside the air pipe 36 to open. The gas from the air pipe 36 through the clean water outlet 21 into the multi-stage filter element 14 will drive the rotation of the turbine 19 inside the multi-stage filter element 14, thereby driving the rotation of the multi-stage filter element 14;

[0049] In order to discharge the water used to flush the multi-stage filter element 14 inside the outer shell 5, the water outlet assembly includes flushing water outlets 25 equidistantly arranged on the outer periphery of the outer shell 5 away from the turntable 7. The outer periphery of the outer shell 5 is provided with a first sealing plug 24 for blocking the flushing water outlet 25. The first sealing plug 24 can move back and forth along the axial direction of the outer shell 5 on the outer periphery of the flushing water outlet 25.

[0050] like Figure 3 As shown in , when the first sealing plug 24 is located at the outer port of the flushing water outlet 25, the first sealing plug 24 blocks the flushing water outlet 25. At this time, the water inside the outer shell 5 will not be discharged from the flushing water outlet 25. When the multi-stage filter element 14 inside the outer shell 5 needs to be cleaned, the outer shell 5 will be moved to a position away from the sewage purification area, and the flushing water outlet 25 will be located at the bottom of the outer shell 5, as shown in FIG. Figure 2 As shown in the figure, the first sealing plug 24 will move to a position deviating from the flushing water outlet 25, and the water sprayed from the high-pressure water outlet 34 on the water spray pipe 20 will be discharged from the flushing water outlet 25 to the inside of the water collecting tank 12 after backwashing the multi-stage filter element 14.

[0051] In order to realize the back and forth movement of the first sealing plug 24 along the axial direction of the outer periphery of the outer shell 5, the first sealing plugs 24 are fixedly connected by a movable rod 23, and the end of the movable rod 23 away from the sewage tank 2 is fixedly connected to the fixed plate 27 on the outer periphery of the outer shell 5 by a compression spring, and the end of the movable rod 23 close to the sewage tank 2 extends out of the end surface of the outer shell 5 close to the sewage tank 2. A protrusion 10 is provided in the clean water tank 1 on the moving path of the movable rod 23, and when the high-pressure water inlet 22 on the outer shell 5 is connected to the high-pressure water pipe 8, the protrusion 10 squeezes the movable rod 23 in the direction close to the fixed plate 27. At this time, the first sealing plug 24 is detached from the port of the flushing water outlet 25, and the water that has entered the interior of the outer shell 5 and cleaned the multi-stage filter element 14 will be discharged from the flushing water outlet 25;

[0052] In order to make the back and forth movement of the movable rod 23 more stable, a limiting slider 28 is fixedly provided on the surface of the movable rod 23 facing the outer shell 5 , and the limiting slider 28 is slidably connected to a limiting slot 29 on the outer periphery of the outer shell 5 .

[0053] Since the sewage entering the water inlet 16 will first pass through the water transfer channel 17 and enter the interior of the water inlet channel, that is, between the multi-stage filter element 14 and the outer shell 5 when the device is purifying sewage, the inner wall of the outer shell 5 will be attached with microorganisms, rust and other impurities. In order to clean the impurities on the inner wall of the outer shell 5, soft brush assemblies in contact with the inner wall of the outer shell 5 are evenly provided on the outer periphery of the multi-stage filter element 14. The soft brush assemblies are arranged in an equidistant ring around the axis of the multi-stage filter element 14 on the outer periphery of the multi-stage filter element 14, and the soft brush assemblies are arranged in an equidistant linear manner along the length direction of the multi-stage filter element 14 on the outer periphery of the multi-stage filter element 14.

[0054] When the multi-stage filter element 14 rotates, the soft bristle assembly can brush the inner wall of the outer shell 5 , and the soft bristle assembly is relatively soft, thereby avoiding causing wear to the inner wall of the outer shell 5 .

[0055] Since magnetic materials such as rust present in sewage can easily clog the mesh of the multi-stage filter element 14, and if hard magnetic materials such as rust are stuck in the pores of the multi-stage filter element 14, they will not be easily flushed out, the soft bristle assembly includes elastic bristles 26, magnetic balls 37 and columnar cavities 38. The elastic bristles 26 are fixedly connected to the outer periphery of the multi-stage filter element 14, and a columnar cavity 38 is opened inside the elastic bristles 26 along its length direction, and a number of magnetic balls 37 are equidistantly arranged inside the columnar cavity 38.

[0056] The magnetic balls 37 are magnetic and do not affect the "flexibility" of the elastic bristles 26. Magnetic impurities such as rust that enter between the outer shell 5 and the multi-stage filter element 14 can be adsorbed on the surface of the elastic bristles 26 to prevent the rust and other magnetic impurities from adhering to the inner wall of the outer shell 5 or getting stuck in the pores of the multi-stage filter element 14. That is, the elastic bristles 26 play the role of collecting magnetic impurities such as rust. When the multi-stage filter element 14 is backwashed, when high-pressure water passes through the bottom of the multi-stage filter element 14, it will wash down the impurities on the elastic bristles 26 at the bottom of the multi-stage filter element 14, thereby removing the rust and other magnetic impurities from the elastic bristles 26.

[0057] It should be noted that the elastic bristles 26 can be made of rubber or latex, etc., as long as 26 has a certain elasticity and is impermeable.

[0058] In actual application, if the magnetism of the magnetic ball 37 is weak, when the water flows between the outer shell 5 and the multi-stage filter element 14, the rust and other magnetic impurities adhering to the elastic bristles 26 may be washed down, and the impurities will enter the pores on the multi-stage filter element 14 along with the water flow, and it is not easy to separate from the pores on the multi-stage filter element 14. If the magnetism of the magnetic ball 37 is strong, although the collection ability of the magnetic impurities such as rust is strong, it is not convenient for them to separate from the elastic bristles 26 later. Therefore, an annular groove 39 is provided around the cylindrical cavity 38 at one end of the elastic bristles 26 facing the multi-stage filter element 14, and a plurality of connecting grooves 6 are provided on the outer periphery of the elastic bristles 26, which are interconnected with the inside of the annular groove 39. A spherical shell-shaped elastic diaphragm 15 protruding toward the annular groove 39 is fixed inside the connecting groove 6.

[0059] Since the elastic diaphragm 15 is initially in a state of protruding toward the annular groove 39, that is, the elastic diaphragm 15 is recessed toward the interior of the communicating groove 6, the rust and other magnetic impurities absorbed by the magnetic balls 37 will be mostly collected in the recessed portion of the elastic diaphragm 15. Obviously, the rust and other magnetic impurities located in the recessed portion of the elastic diaphragm 15 are not easily impacted by the water flow and are not easily separated from the elastic bristles 26. When the multi-stage filter element 14 needs to be backwashed, the high-pressure water passing through the multi-stage filter element 14 will partially enter the interior of the annular groove 39 and impact the elastic diaphragm 15 toward the outside of the elastic bristles 26. The elastic diaphragm 15 will expand and deform and protrude from the outer end of the communicating groove 6. At this time, the rust and other magnetic impurities on the surface of the elastic diaphragm 15 outside the elastic bristles 26 can be easily washed down by the high-pressure water.

[0060] In actual application, in order to avoid excessive water entering the limiting chute 29, a flow limiting mechanism, such as a flow limiting valve, etc., can be set at the port of the annular groove 39. At the same time, a mechanism for slowing down the high-pressure water can also be set to prevent the high-pressure water from exerting a large impact force on the inside of the annular groove 39.

[0061] Working principle: During actual operation of the present invention, the water inside the sewage tank 2 is pumped into the set of water pipes 4 close to the sewage tank 2 by the action of the water pump 13, and then is purified through the filter components in the sewage purification area. The purified water is discharged from the faucet 3 through the set of water pipes 4 away from the sewage tank 2. Since the filter components in the present invention are arranged in an equidistant ring shape on the periphery of the turntable 7, and the turntable 7 can rotate around its own axis, when one set of filter components reaches "adsorption saturation", the turntable 7 can be controlled to rotate by the power mechanism, so that the next set of unfiltered filter components is moved to the sewage purification area. At this time, the filter components are interconnected with the interior of the two sets of water pipes 4. The sewage will be purified when passing through the filter components, and a cleaning component for cleaning the filter components is also provided below the water pipe 4. The cleaning component can clean the filter components after "adsorption saturation" so that they can be reused again.

[0062] The actual working principle of the filter assembly is as follows: when the outer shell 5 moves to the sewage purification area, the two ends of the outer shell 5 will respectively contact the ends of the two sets of water pipes 4 that are close to each other, and the two ends of the outer shell 5 will squeeze the pressing rod 33 fixedly connected to the second sealing plug 31. The pressing rod 33 drives the second sealing plug 31 to move in the direction close to the fixing rod 30 and separate from the end of the water hole 32. At this time, the sewage entering the inside of the set of water pipes 4 close to the sewage tank 2 will pass through the water inlet 16 and the water channel 17 into the inside of the water inlet channel, and then pass through the multi-stage filter element 14 to be purified and flow out from the clean water outlet 21. The clean water flowing out of the clean water outlet 21 passes through the set of water pipes 4 away from the sewage tank 2 and enters the faucet 3. When the multi-stage filter element 14 inside the set of outer shells 5 reaches "adsorption saturation", it can be rotated to a position away from the sewage purification area, and the other set of outer shells 5 can be moved between the two sets of water pipes 4. The filter assembly removed from between the two sets of water pipes 4 will be cleaned by the cleaning assembly for subsequent reuse;

[0063] The present invention arranges multiple groups of filter components on the periphery of the turntable 7, so that when the multi-stage filter element 14 in a group of filter components reaches "adsorption saturation", it can be transferred out of the sewage purification area, and a new filter component can be moved to the sewage purification area to purify the sewage. The filter component that has purified water can be cleaned by the cleaning component and reused, so there is no need to frequently replace the multi-stage filter element 14, making the use of the device more convenient.

Claims

1. A hierarchical water purification device, comprising a water purification tank (1), characterized in that: Two groups of coaxial water pipes (4) are horizontally arranged inside the clean water tank (1), and a sewage purification zone is formed between the two groups of water pipes (4). A rotating turntable (7) is provided below the sewage purification zone, and the axis of the turntable (7) is parallel to the axis of the water pipe (4). The outer periphery of the turntable (7) is provided with filter components arranged in an equidistant ring around the axis of the turntable (7). The filter components are connected to the outer periphery of the turntable (7) through a connecting rod. When the filter components are located in the sewage purification zone, they are communicated with the interiors of the two groups of water pipes (4). One end of one group of water pipes (4) is communicated with the faucet (3) on the side wall of the clean water tank (1), and the end of the other group of water pipes (4) away from the faucet (3) is connected to the clean water tank. (1) The sewage tanks (2) at the top are interconnected, and a water pump (13) is provided inside the sewage tank (2) to pump water into the water pipe (4). The water pipe (4) is a cylindrical structure with both ends sealed. The ends of the two groups of water pipes (4) close to each other are each provided with a water hole (32). A second sealing plug (31) is provided at a position corresponding to the water hole (32) inside the water pipe (4). The side of the second sealing plug (31) facing the sewage purification area is fixedly connected to the pressing rod (33). The side of the second sealing plug (31) facing away from the sewage purification area is fixedly connected to the fixing rod (30) on the inner wall of the water pipe (4) through a compression spring. When the filter assembly is located in the sewage purification area, the water hole (32) is opened; The filter assembly comprises an outer shell (5) arranged along the axial direction of the water pipe (4), a multi-stage filter element (14) coaxial with the outer shell (5) is provided inside the outer shell (5), the outer shell (5) is a cylindrical structure sealed at both ends, the multi-stage filter element (14) is a cylindrical structure opened at both ends, a water inlet channel is formed between the multi-stage filter element (14) and the outer shell (5), an end of the outer shell (5) close to the sewage tank (2) is provided with a water inlet (16), an inner wall layer structure of the outer shell (5) is provided with a water channel (17) for connecting the water inlet channel and the water inlet (16), and an end of the outer shell (5) away from the sewage tank (2) is provided with a filter element (17) for connecting the water inlet channel and the water inlet (16). 14) interconnected clean water outlets (21), the water inlet (16) and the clean water outlet (21) are both provided with a filter screen flush with the end of the outer shell (5), when the outer shell (5) moves to a position coaxial with the water pipe (4), the water inlet (16) corresponds to the water delivery holes (32) on the group of water pipes (4) close to the sewage tank (2), and the clean water outlet (21) corresponds to the water delivery holes (32) on the group of water pipes (4) away from the sewage tank (2), and the clean water tank (1) is provided with a cleaning component for cleaning the multi-stage filter element (14) inside the outer shell (5) that deviates from the sewage purification area; The outer periphery of the multi-stage filter element (14) is evenly provided with soft bristle components that are in contact with the inner wall of the outer shell (5); The soft bristle assembly comprises elastic bristles (26), magnetic balls (37) and a columnar cavity (38); the elastic bristles (26) are fixedly connected to the outer periphery of the multi-stage filter element (14); the elastic bristles (26) are provided with a columnar cavity (38) along the length thereof; a plurality of magnetic balls (37) are equidistantly arranged inside the columnar cavity (38); An annular groove (39) surrounding the cylindrical cavity (38) is formed on one end of the elastic bristles (26) facing the multi-stage filter element (14); a plurality of communication grooves (6) communicating with the inside of the annular groove (39) are formed on the outer periphery of the elastic bristles (26); and a spherical shell-shaped elastic diaphragm (15) protruding toward the annular groove (39) is fixedly provided inside the communication groove (6).

2. A hierarchical water purification device according to claim 1, characterized in that: The cleaning assembly comprises a water spray pipe (20) fixedly connected to the inner wall of the outer shell (5), the water spray pipe (20) is located inside the multi-stage filter element (14), and the water spray pipe (20) and the multi-stage filter element (14) are parallel to each other, a high-pressure water outlet (34) is provided on the surface of the water spray pipe (20), and a one-way valve is provided inside the high-pressure water outlet (34), and a high-pressure water inlet (22) is provided at one end of the outer shell (5) away from the sewage tank (2) and communicated with the inside of the water spray pipe (20), and a high-pressure water inlet (22) is provided inside the clean water tank (1) to the high-pressure water inlet ( 22) a water injection assembly for internal water injection, when the high-pressure water inlet (22) on the outer shell (5) is connected to the water injection assembly, the outer shell (5) is located at a position deviating from the sewage purification area, and the high-pressure water outlet (34) on the water spray pipe (20) inside the outer shell (5) is located at the bottom of the water spray pipe (20), the multi-stage filter element (14) is rotatably connected to the inside of the outer shell (5), and the multi-stage filter element (14) can rotate around its own axis, and the outer shell (5) is provided with a water outlet assembly for discharging water sprayed from the high-pressure water outlet (34).

3. A hierarchical water purification device according to claim 2, characterized in that: The water injection assembly comprises a high-pressure water pipe (8) located inside the clean water tank (1), a solenoid valve is provided inside the high-pressure water pipe (8), and when the high-pressure water inlet (22) on the outer shell (5) and the high-pressure water pipe (8) are connected to each other, the solenoid valve inside the high-pressure water pipe (8) is opened.

4. A hierarchical water purification device according to claim 3, characterized in that: A turbine (19) is provided at one end of the multi-stage filter element (14) near the water inlet (16); an inflation assembly for injecting gas into the multi-stage filter element (14) is provided inside the clean water tank (1), and the gas moves along the axial direction of the turbine (19); an air outlet pipe (18) coaxially arranged with the multi-stage filter element (14) is provided inside the water inlet (16); the air outlet pipe (18) is communicated with the interior of the multi-stage filter element (14), and a one-way valve is provided inside the air outlet pipe (18).

5. A hierarchical water purification device according to claim 4, characterized in that: The inflation assembly includes an air delivery pipe (36) horizontally arranged inside the clean water tank (1), the air delivery pipe (36) is located near the high-pressure water pipe (8), and a solenoid valve is provided inside the air delivery pipe (36). When the clean water outlet (21) on the outer shell (5) is connected to the air delivery pipe (36), the solenoid valve on the air delivery pipe (36) is opened.

6. A hierarchical water purification device according to claim 5, characterized in that: The water outlet assembly comprises flushing water outlets (25) arranged equidistantly on the outer periphery of the outer shell (5) away from the turntable (7); a first sealing plug (24) is provided on the outer periphery of the outer shell (5) for blocking the flushing water outlet (25); and the first sealing plug (24) can move back and forth along the axial direction of the outer shell (5) on the outer periphery of the flushing water outlet (25).

7. A hierarchical water purification device according to claim 6, characterized in that: The first sealing plugs (24) are fixedly connected to each other via a movable rod (23), and the end of the movable rod (23) away from the sewage tank (2) is fixedly connected to a fixed plate (27) on the outer periphery of the outer shell (5) via a compression spring. The end of the movable rod (23) close to the sewage tank (2) extends out of the end surface of the outer shell (5) close to the sewage tank (2). A protrusion (10) is provided in the clean water tank (1) on the moving path of the movable rod (23), and when the high-pressure water inlet (22) on the outer shell (5) is connected to the high-pressure water pipe (8), the protrusion (10) presses the movable rod (23) toward the fixed plate (27).

8. The hierarchical water purification device according to claim 6, characterized in that: The soft bristle components are arranged in an equidistant annular pattern around the axis of the multi-stage filter core (14) on the periphery of the multi-stage filter core (14), and are also arranged in an equidistant linear pattern along the length direction of the multi-stage filter core (14) on the periphery of the multi-stage filter core (14).

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