Backwashing device for filter element of water purifier

Abstract

The back flushing device comprises a filter seat, a back plate, a top seat and a water tank, the rear side of the filter seat is fixedly connected with the back plate, the upper portion of the front side of the back plate is fixedly connected with the top seat, the bottom side of the water tank is fixedly connected with the top seat, and the right side of the filter seat is connected with a backflow pipe. The top end of the backflow pipe is connected with the right side of the water tank, a mounting cylinder is fixed to the top of the filter seat in a penetrating mode, and a connecting cylinder is fixedly connected to the bottom side of the top seat, so that the application range of the whole device to filter element assembly can be greatly widened, and dirt and impurities in the deep layer of a filter element are washed out through washing operation from inside to outside; the cleaning efficiency is greatly improved, the condition that the service life of a filtering structure of the filter element is shortened due to long-time washing is avoided, sewage generated by cleaning can be reasonably utilized, and a large amount of sewage generated by cleaning the filter element can be reasonably recycled.

Description

Technical Field

[0001] The utility model relates to the technical field of water purifiers, and in particular to a backwashing device for a filter element of a water purifier. Background Art

[0002] Water purifier filter cartridges are classified into four types: microfiltration (also called coarse filtration), ultrafiltration (UF), nanofiltration (NF), and reverse osmosis (RO). After prolonged use, the filter cartridge inside the water purifier needs to be cleaned. The typical cleaning method is manual cleaning, which is time-consuming and labor-intensive, and has poor cleaning effects.

[0003] In the prior art, application number 202121961897.6 discloses a backwashing device for a water purifier filter element, comprising a fixed plate installed on the lower surface of a treatment box, a fixing pin being penetrated on the upper surface of the fixed plate, a water outlet valve being penetrated on the left side of the treatment box, a blocking door being hinged on the front of the treatment box, a seepage plate being installed in the treatment box, and a blocking layer being installed in the treatment box; the above-mentioned device can only flush the surface of the filter element, and the deep position of the filter element needs to be cleaned for a long time, which is time-consuming and labor-intensive, and the sewage generated by cleaning cannot be reasonably utilized, and the large amount of sewage generated by the filter element cleaning cannot be reasonably recycled.

[0004] Currently, no effective solutions have been proposed for the problems in related technologies. Summary of the Invention

[0005] In response to the problems in the related art, the present invention proposes a backwashing device for a water purifier filter element to overcome the above-mentioned technical problems existing in the existing related art.

[0006] To this end, the specific technical solutions adopted in this utility model are as follows:

[0007] A backwash device for a water purifier filter element comprises a filter seat, a back plate, a top seat, and a water tank. The rear side of the filter seat is fixedly connected to the back plate, the upper front side of the back plate is fixedly connected to the top seat, the bottom side of the water tank is fixedly connected to the top seat, the right side of the filter seat is connected to a return pipe, the top end of the return pipe is connected to the right side of the water tank, a mounting cylinder is fixed through the top of the filter seat, a connecting cylinder is fixedly connected to the bottom side of the top seat, and a filter element assembly cylinder is movably connected between the mounting cylinder and the connecting cylinder.

[0008] Preferably, a mounting ring is fixedly connected to the middle of the top side of the mounting cylinder, and drainage holes are equidistantly provided on the outer wall of the mounting ring. An annular filter is fixed to the bottom side of the inner wall of the mounting cylinder, and the annular filter is located outside the mounting ring.

[0009] Preferably, a first threaded groove is arranged on the outer wall of the bottom end of the filter core assembling cylinder and the inner wall of the mounting ring, and the first threaded groove on the outer wall of the filter core assembling cylinder is matched with the first threaded groove on the mounting ring in threaded connection.

[0010] Preferably, a second threaded groove is arranged on the inner wall of the filter core assembling cylinder, and an outer threaded pressing disc is matched with the second threaded groove in threaded connection, and a water injection hole is arranged in the inner part of the outer threaded pressing disc.

[0011] Preferably, an outer threaded pipe is arranged in the inner wall of the connecting cylinder, a rubber hose is fixedly arranged in the bottom end of the outer threaded pipe, and a plurality of spray holes are equidistantly arranged in the outer wall of the rubber hose.

[0012] Preferably, a connecting pipe is fixedly arranged in the top end of the outer threaded pipe, a threaded hole is arranged in the bottom side of the connecting cylinder, and the outer threaded pipe is matched with the threaded hole in threaded through connection.

[0013] Preferably, a first partition plate is fixedly connected to the lower part of the inner wall of the filter seat, a second partition plate is fixedly connected to the lower part of the inner wall of the water tank, a water pump is fixedly connected to the bottom side of the first partition plate, a booster pump is fixedly connected to the lower part of the second partition plate, a filter screen plate is fixedly connected to the upper part of the inner wall of the water tank, and an activated carbon adsorption layer is filled between the filter screen plate and the first partition plate.

[0014] Preferably, the input end of the booster pump is arranged to pass through the top side of the second partition plate through a pipeline, the input end of the water pump is arranged to pass through the activated carbon adsorption layer and the upper part of the filter screen plate through a pipeline in sequence, and the output end of the water pump is fixedly connected with the return pipe in through connection.

[0015] The beneficial effects of the utility model are as follows: the overall device greatly improves the application range of filter core assembly, and the filter core deep dirt and impurities are flushed out through the flushing operation from inside to outside, the cleaning efficiency is greatly improved compared with surface cleaning, the service life of the filter structure is prevented from being reduced due to long-time flushing, the sewage generated in cleaning can be reasonably utilized, and the large amount of sewage generated in filter core cleaning can be reasonably recycled. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the premise of the drawings.

[0017] Figure 1 It is a total structure schematic view of the reverse flushing device for filter core of a water purifier according to the utility model embodiment.

[0018] Figure 2 Figure 1 is a filter assembly cylinder split structure schematic diagram of a reverse flushing device for a filter core of a water purifier according to an embodiment of the present application;

[0019] Figure 3 Figure 2 is a connection cylinder appearance structure schematic diagram of a reverse flushing device for a filter core of a water purifier according to an embodiment of the present application;

[0020] Figure 4 Figure 3 is a water tank and filter seat internal structure schematic diagram of a reverse flushing device for a filter core of a water purifier according to an embodiment of the present application.

[0021] In the figure:

[0022] 1, filter seat; 2, back plate; 3, top seat; 4, water tank; 5, backflow pipe; 6, mounting cylinder; 7, connection cylinder; 8, filter assembly cylinder; 9, mounting ring; 10, blowdown hole; 11, annular filter screen; 12, first threaded groove; 13, second threaded groove; 14, external thread pressure plate; 15, water injection hole; 16, external threaded pipe; 17, rubber hose; 18, spray hole; 19, connecting pipe; 20, first baffle; 21, second baffle; 22, water pump; 23, booster pump; 24, filter screen plate; 25, activated carbon adsorption layer. DETAILED DESCRIPTION

[0023] To further illustrate the embodiments, the present application provides drawings, which are part of the disclosure of the present application, mainly used to illustrate the embodiments, and can be used to explain the operating principle of the embodiments in conjunction with the related description of the specification. With reference to these contents, those skilled in the art should be able to understand other possible embodiments and advantages of the present application. The components in the figure are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to the embodiments of the present application, a reverse flushing device for a filter core of a water purifier is provided. EMBODIMENT

[0025] As Figures 1-4As shown, according to the reverse flushing device for filter core of water purifier, the reverse flushing device for filter core of water purifier comprises a filter seat 1, a back plate 2, a top seat 3 and a water tank 4, the rear side of the filter seat 1 is fixedly connected with the back plate 2, the front side of the back plate 2 is fixedly connected with the top seat 3, the bottom side of the water tank 4 is fixedly connected with the top seat 3, a reflux pipe 5 is connected to the right side of the filter seat 1, the top end of the reflux pipe 5 is connected with the right side of the water tank 4, a mounting cylinder 6 is fixedly and penetratively arranged on the top of the filter seat 1, a connecting cylinder 7 is fixedly connected to the bottom side of the top seat 3, a filter core assembling cylinder 8 is movably connected between the mounting cylinder 6 and the connecting cylinder 7, a mounting ring 9 is fixedly connected to the middle of the top side of the mounting cylinder 6, a plurality of blowdown holes 10 are equidistantly and penetratively arranged on the outer wall of the mounting ring 9, a ring-shaped filter screen 11 is fixedly and penetratively arranged on the bottom side of the inner wall of the mounting cylinder 6, the ring-shaped filter screen 11 is located outside the mounting ring 9, a first threaded groove 12 is arranged on the outer wall of the bottom end of the filter core assembling cylinder 8 and the upper side of the inner wall of the mounting ring 9 respectively, the first threaded groove 12 on the outer wall of the filter core assembling cylinder 8 is matched and threadedly connected with the first threaded groove 12 on the mounting ring 9, a second threaded groove 13 is arranged on the inner wall of the filter core assembling cylinder 8, the filter core assembling cylinder 8 is matched and connected with an external thread pressing disc 14 through the second threaded groove 13, a water injection hole 15 is penetratively arranged in the internal part of the external thread pressing disc 14, the filter core to be cleaned is placed in the internal part of the mounting ring 9, the filter core assembling cylinder 8 is sleeved on the outside of the filter core, the first threaded groove 12 on the outer wall of the filter core assembling cylinder 8 is matched and threadedly connected with the first threaded groove 12 on the mounting ring 9, according to the height of the filter core, the external thread pressing disc 14 is screwed, so that the external thread pressing disc 14 is positioned by being pressed downward on the top end of the filter core, the sewage generated by flushing the filter core is stored in the internal cavity of the filter seat 1 through the blowdown holes 10 on the outer wall of the mounting ring 9 and the ring-shaped filter screen 11, and the application range of the overall device for assembling the filter core is greatly improved. Embodiment

[0026] As Figures 1-4As shown, according to the utility model embodiment of a kind of water purifier filter core is with reverse flushing device, including filter seat 1, backplate 2, top seat 3, water tank 4, filter seat 1 rear side is fixedly connected with backplate 2, backplate 2 front side top is fixedly connected with top seat 3, water tank 4 bottom side is fixedly connected with top seat 3, filter seat 1 right side is connected with backflow pipe 5, backflow pipe 5 top end is connected with water tank 4 right side, filter seat 1 top is fixed with installation cylinder 6, top seat 3 bottom side is fixedly connected with connecting cylinder 7, installation cylinder 6 and connecting cylinder 7 between movable connection have filter core assembly cylinder 8, connecting cylinder 7 inner wall bottom side is equipped with external thread pipe 16, external thread pipe 16 bottom end is fixed with rubber hose 17, rubber hose 17 outer wall is equidistantly equipped with spray hole 18, external thread pipe 16 top end is fixed with connecting pipe 19, connecting cylinder 7 bottom side is equipped with screw hole, external thread pipe 16 and screw hole matching screw pass through connection, when installing filter core assembly cylinder 8, can make rubber hose 17 penetrate the water injection hole 15 on external thread pressure disc 14, and extend into filter core inside, by spray hole 18 on rubber hose 17 outer wall, flush processing is carried out to filter core inner wall, to from inside to outside flushing operation, the dirt, impurity of filter core deep layer is washed out, compared to surface cleaning, the efficiency of cleaning is greatly improved, avoid long time flushing to cause the situation that the service life of filter core filtration structure reduces. Embodiment

[0027] As Figures 1-4As shown, according to the utility model embodiment of a water purifier filter core is with reverse flushing device, including filter seat 1, backplate 2, top seat 3, water tank 4, filter seat 1 rear side and backplate 2 fixed connection, backplate 2 front side top and top seat 3 fixed connection, water tank 4 bottom side and top seat 3 fixed connection, filter seat 1 right side is connected with backflow pipe 5, backflow pipe 5 top end and water tank 4 right side are connected, filter seat 1 top fixedly connected with installation cylinder 6 and have the filter core assembly cylinder 8 of activity between installation cylinder 6 and connecting cylinder 7, filter seat 1 inner wall below fixedly connected with first baffle 20, water tank 4 inner wall below fixedly connected with second baffle 21, first baffle 20 bottom side fixedly connected with water pump 22, second baffle 21 below fixedly connected with booster pump 23, water tank 4 inner wall top fixedly connected with filter screen plate 24, filter screen plate 24 and first baffle 20 between filling have activated carbon adsorption layer 25, the input end of booster pump 23 is passed through pipeline and penetrates second baffle 21 top side, the input end of water pump 22 is passed through pipeline and penetrates activated carbon adsorption layer 25, filter screen plate 24 top in proper order, the output end of water pump 22 and backflow pipe 5 fixedly connected, by starting booster pump 23, booster pump 23 extracts water source in water tank 4, by high pressure and injects into the filter core inside and carries out reverse flushing processing, the sewage produced by washing will enter filter seat 1, activated carbon adsorption layer 25 in the inner chamber of filter seat 1 can carry out the sedimentation, adsorption of sewage, then through water pump 22, make water pump 22 will separate upper layer clean water source and extract, then through backflow pipe 5 and reenter water tank 4, can reasonably utilize the sewage produced by washing, the large amount of sewage produced by filter core cleaning can be reasonably recycled.

[0028] In summary, by means of the above technical scheme of the utility model, when the device is used, the filter core to be cleaned is placed inside the mounting ring 9, the filter core assembling cylinder 8 is sleeved outside the filter core, the first threaded groove 12 on the outer wall of the filter core assembling cylinder 8 is matched with the first threaded groove 12 on the mounting ring 9 and is threadedly connected, according to the height of the filter core, the outer threaded pressure plate 14 is screwed, the outer threaded pressure plate 14 is pressed and positioned at the top end of the filter core, the sewage produced by flushing the filter core is stored in the inner cavity of the filter seat 1 through the sewage discharge hole 10 and the annular filter screen 11 on the outer wall of the mounting ring 9, when the filter core assembling cylinder 8 is installed, the rubber hose 17 can penetrate the water injection hole 15 on the outer threaded pressure plate 14 and extend into the filter core, the filter core inner wall is flushed through the spraying hole 18 on the outer wall of the rubber hose 17, the filter core deep dirt and impurities are flushed out through the flushing operation from inside to outside, the booster pump 23 is started, the booster pump 23 draws the water source in the water tank 4, the high-pressure water is injected into the filter core for reverse flushing treatment, the sewage produced by flushing is entered into the filter seat 1, the activated carbon adsorption layer 25 in the inner cavity of the filter seat 1 can precipitate and adsorb the sewage, then the water pump 22 is started, the water pump 22 draws the separated upper clean water source, then the clean water source is re-entered into the water tank 4 through the backflow pipe 5, and the sewage produced by cleaning can be reasonably utilized.

[0029] The above is only the preferred embodiment of the utility model, and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A reverse flushing device for a water purifier filter cartridge, comprising a filter seat (1), a back plate (2), a top seat (3), and a water tank (4), characterized in that, The back side of the filter seat (1) is fixedly connected with the back plate (2), the upper side of the front side of the back plate (2) is fixedly connected with the top seat (3), the bottom side of the water tank (4) is fixedly connected with the top seat (3), the right side of the filter seat (1) is connected with the backflow pipe (5), the top end of the backflow pipe (5) is connected with the right side of the water tank (4), the top of the filter seat (1) is fixedly penetrated with the mounting cylinder (6), the bottom side of the top seat (3) is fixedly connected with the connecting cylinder (7), and the mounting cylinder (6) and the connecting cylinder (7) are movably connected with the filter core assembly cylinder (8).

2. The backwashing device for filter cartridge of a water purifier according to claim 1, wherein The middle part of the top side of the mounting cylinder (6) is fixedly connected with the mounting ring (9), a plurality of blowdown holes (10) are equidistantly and penetratingly arranged on the outer wall of the mounting ring (9), the inner wall of the mounting cylinder (6) is fixedly penetrated with the annular filter screen (11) at the bottom side, and the annular filter screen (11) is located outside the mounting ring (9).

3. The backwashing device for filter cartridge of a water purifier according to claim 2, wherein The bottom end of the outer wall of the filter core assembly cylinder (8) and the upper side of the inner wall of the mounting ring (9) are respectively provided with first threaded grooves (12), and the first threaded grooves (12) on the outer wall of the filter core assembly cylinder (8) are matched and threadedly connected with the first threaded grooves (12) on the mounting ring (9).

4. The backwashing device for filter cartridge of a water purifier according to claim 3, wherein The inner wall of the filter core assembly cylinder (8) is provided with second threaded grooves (13), and the filter core assembly cylinder (8) is matched and connected with the external threaded pressure disc (14) through the second threaded grooves (13).

5. The backwashing device for filter cartridge of a water purifier according to claim 4, wherein The inner wall of the connecting cylinder (7) is penetratingly provided with an external threaded pipe (16) at the bottom side, the bottom end of the external threaded pipe (16) is fixedly penetrated with a rubber hose (17), and a plurality of spray holes (18) are equidistantly and penetratingly arranged on the outer wall of the rubber hose (17).

6. The backwashing device for filter cartridge of a water purifier according to claim 5, wherein The top end of the external threaded pipe (16) is fixedly penetrated with a connecting pipe (19), the bottom side of the connecting cylinder (7) is penetratingly provided with a threaded hole, and the external threaded pipe (16) is matched and threadedly penetratingly connected with the threaded hole.

7. The backwashing device for filter cartridge of a water purifier according to claim 6, wherein The lower side of the inner wall of the filter seat (1) is fixedly connected with a first partition plate (20), the lower side of the inner wall of the water tank (4) is fixedly connected with a second partition plate (21), the bottom side of the first partition plate (20) is fixedly connected with a water pump (22), the lower side of the second partition plate (21) is fixedly connected with a booster pump (23), the upper side of the inner wall of the water tank (4) is fixedly connected with a filter screen plate (24), and the filter screen plate (24) is filled with an activated carbon adsorption layer (25) between the first partition plate (20).

8. The backwashing device for filter cartridge of a water purifier according to claim 7, wherein The input end of the booster pump (23) penetrates the top side of the second partition plate (21) through a pipeline, the input end of the water pump (22) penetrates the upper side of the activated carbon adsorption layer (25) and the filter screen plate (24) in sequence through a pipeline, and the output end of the water pump (22) is fixedly and penetratingly connected with the backflow pipe (5).

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