A water purification and filtration device

Abstract

The present invention belongs to the technical field of filtering devices, and particularly relates to a water purification filtering device, which includes a cylinder body, a cylinder cover, and PP cotton. When impurities or sediment and other dirt carried in water pass through the PP cotton, they will be filtered by the PP cotton and remain on the outer side of the PP cotton. The filtered water then seeps backward through the PP cotton and is filtered by the PP cotton behind, that is, the PP cotton that contacts the water later filters less dirt; the PP cotton that contacts the water later is less likely to get dirty and has a smaller filtering effect on the water. In order to ensure that the PP cotton in the first annular groove and the fourth annular groove can all play a full filtering role, during the filtering process of the present invention, the position where water enters the PP cotton placement cylinder is changed; at the same time, the water inlet end and the water outlet end of the PP cotton will also change accordingly, that is, the number of times the PP cotton seeps from top to bottom and the number of times it seeps from bottom to top are basically the same, ensuring that the PP cotton installed in the first annular groove and the fourth annular groove can all be fully utilized.

Description

Technical Field

[0001] The present invention belongs to the technical field of filtering devices, and particularly relates to a water purification filtering device. Background Art

[0002] With the gradual deterioration of water quality, water purifiers have gradually entered the homes of a large number of users, and water purifiers are gradually playing an increasingly important role in the daily lives of users.

[0003] During the process of filtering and purifying water, the filter needs to go through five-stage filtration in sequence. The first stage: PP cotton, which removes various visible substances / dust and impurities in tap water. The second and third stages: pre-activated carbon. In some low-configuration water purifiers, the third stage is also PP cotton. The carbon removes chlorine and organic impurities, and can also absorb the odors, colors, and smells generated by organic compounds in water. The fourth stage: ultrafiltration or reverse osmosis membrane, which can remove bacteria, viruses, spores, and other substances in water. The fifth stage: post-activated carbon device, which further improves the taste and removes odors.

[0004] For the first-stage filtration through PP cotton, water enters from the upper side of the filter cartridge, and after being filtered by the PP cotton in the filter cartridge, it flows out from the lower side of the filter cartridge. Large particulate dirt such as impurities and sediment in the water will be filtered out by the upper part of the PP cotton; when the water flows through the lower PP cotton, the impurities it carries are relatively less; that is, due to the water flow direction, the filtration capacity of the upper part of the PP cotton is easily reduced, and the lower part of the PP cotton cannot be well utilized.

[0005] The present invention designs a water purification filtering device to solve the above problems. Summary of the Invention

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A water purification filtering device, which includes a cylinder body, a cylinder cover, and PP cotton. Among them, a water purification port and a sewage port are opened on the outer circular surface at the lower end of the cylinder body, and the water purification port is located above the sewage port; a control switch is rotatably installed inside the cylinder body.

[0008] The PP cotton placement cylinder is successively provided with a first annular groove, a second annular groove, a third annular groove, and a fourth annular groove from the inside to the outside. The lower ends of the first annular groove and the second annular groove are communicated, and the lower ends of the third annular groove and the fourth annular groove are communicated; the PP cotton placement cylinder is fixedly installed inside the cylinder body and is located between the inner cylinder and the outer cylinder of the control switch; a fourth water hole is respectively opened on one side of the upper end of the first annular groove close to the inner cylinder and one side of the upper end of the fourth annular groove close to the outer cylinder; a one-way valve is respectively installed on the inner walls of the upper ends of the first annular groove and the fourth annular groove; a water flow transition cover is detachably installed at the upper ends of the second annular groove and the third annular groove; the rotation of the control switch can control whether the upper and lower ends of the first annular groove and the fourth annular groove discharge water.

[0009] PP cotton is installed in the first annular groove, the second annular groove, the third annular groove and the fourth annular groove on the PP cotton placement cylinder. There is a gap between the PP cotton in the first annular groove and the fourth annular groove and the annular guide groove, and the PP cotton in the first annular groove and the fourth annular groove is in close fit with the annular guide groove.

[0010] An outer layer water diversion shell is fixedly installed at the lower end of the cylinder cover; the upper end of the outer layer water diversion shell has an annular convex area, and circumferentially uniformly distributed second water holes are opened on the inner circular surface of the convex area. The lower end of the outer layer water diversion shell has an inner concave annular groove for plugging and mating with the cylinder body, and the outer layer water diversion shell is nested and mated with the upper end of the fourth annular groove; a spiral sheet is rotatably installed in the cylinder cover; the spiral sheet is provided with a rotating shaft, and the lower end of the rotating shaft extends into the cylinder body and is connected to the control switch through gear transmission; the upper end of the first annular groove is nested and installed with a drainage cover, and the upper end of the drainage cover is plugged and slidably installed with an inner layer water diversion shell. The upper end of the inner layer water diversion shell has a protrusion, and circumferentially uniformly distributed third water holes are opened on the outer circular surface of the protrusion. The protrusion of the inner layer water diversion shell is nested and mated with the annular convex area of the outer layer water diversion shell; when the rotating shaft rotates, it can control the up and down sliding of the inner layer water diversion shell relative to the outer layer water diversion shell.

[0011] As a preferred solution, the control switch is of a cylindrical hollow structure, and the control switch is divided into two parts: an outer cylinder and an inner cylinder. The lower ends of the inner cylinder and the outer cylinder are interconnected; a ring-shaped partition is fixedly installed in both the inner cylinder and the outer cylinder, and the partition separates the inner cylinder and the outer cylinder up and down; the upper cavity of the inner cylinder and the outer cylinder is connected to each other through a water pipe arranged in the lower cavity; two second arc-shaped water holes are opened on the lower cavity of the inner cylinder and the outer cylinder, and a purified water discharge port and a sewage discharge port are opened on the outer wall surface of the outer cylinder. The purified water discharge port is located above the partition and communicates with the purified water port opened on the cylinder body, and the sewage discharge port is located below the partition and communicates with the sewage port opened on the cylinder body.

[0012] As a preferred solution, two first arc-shaped water holes are opened on the upper cavity of the inner cylinder and the outer cylinder. The two first arc-shaped water holes are circumferentially symmetrically distributed and the central angles are both 170 degrees; a fourth water hole is respectively opened on one side of the upper end of the first annular groove close to the inner cylinder and one side of the upper end of the fourth annular groove close to the outer cylinder; the two fourth water holes respectively cooperate with the two first arc-shaped water holes opened at the upper end of the control switch.

[0013] As a preferred solution, an intermediate gear is rotatably installed in the cylinder body, a toothed ring is fixedly installed at the lower end of the control switch, and the toothed ring is connected to the intermediate gear through three groups of transition gears. The lower end of the rotating rod is inserted into the cylinder body and is plugged and connected to the intermediate gear.

[0014] As a preferred solution, a third arc-shaped water hole is opened on the side wall surface of the first annular groove close to the inner cylinder, and the third arc-shaped water hole cooperates with the second arc-shaped water hole opened on the inner cylinder of the control switch; a fourth arc-shaped water hole is opened on the side of the fourth annular groove close to the outer cylinder, and the fourth arc-shaped water hole cooperates with the second arc-shaped water hole opened on the outer cylinder of the control switch.

[0015] As a preferred solution, a sealing ring is installed between the PP cotton placement cylinder and the control switch.

[0016] As a preferred solution, the upper end of the cylinder cover is a water inlet, and the cylinder cover has an installation cavity; there is a circular plate between the outer layer water diversion shell and the cylinder cover, and a first water hole is opened on the circular plate; the spiral piece is rotatably installed in the installation cavity.

[0017] As a preferred solution, a first water flow channel is provided in the outer layer water diversion shell, and a second water flow channel is provided in the inner layer water diversion shell; a guiding hole for the rotating shaft to pass through is opened on the protrusion.

[0018] As a preferred solution, the inner layer water diversion shell has a cavity, and an adjusting ring is fixedly installed in the cavity. An annular guide groove with uniformly changing depth in the circumferential direction is opened on the lower end surface of the adjusting ring; a first gear is fixedly installed on the rotating shaft, and three second gears are rotatably installed in the cavity circumferentially and evenly. The three second gears are engaged with the first gear. A toothed ring is rotatably installed in the cavity, a dial rod is fixedly installed on the outer circumferential surface of the toothed ring, and a top column is fixedly installed on the dial rod. The top column is located in the annular guide groove of the adjusting ring and is slidably matched with the annular guide groove.

[0019] As a preferred solution, the one-way valve includes a valve plug, a first spring, and a fixing ring. The fixing ring is fixedly installed on the annular wall surfaces of the first annular groove and the fourth annular groove. The valve plug is slidably installed in the first annular groove and the fourth annular groove, and the PP cotton passes through the middle of the corresponding valve plug. A first spring is installed between the valve plug and the fixing ring.

[0020] Compared with the existing technology, the advantages of the present invention are as follows:

[0021] 1. When impurities, sediment, or other contaminants carried in water pass through the PP cotton, they will be filtered by the PP cotton and remain on the outer side of the PP cotton. The filtered water then seeps backward through the PP cotton and is filtered by the subsequent PP cotton. That is, the PP cotton that comes into contact with water later filters out fewer contaminants; the PP cotton that comes into contact with water later is less likely to get dirty and has a smaller filtering effect on water. To ensure that the PP cotton in the first annular groove and the fourth annular groove can fully play a filtering role, during the filtering process of the present invention, by changing the position where water enters the PP cotton placement cylinder, it is ensured that the PP cotton installed in the first annular groove and the fourth annular groove can be fully utilized; since there is no gap between the PP cotton placed in the second annular groove and the third annular groove and the annular guide groove, and the water entering the second annular groove and the third annular groove has already been filtered once by the PP cotton in the first annular groove or the fourth annular groove, the filtering effect error of the PP cotton placed in the second annular groove and the third annular groove will not be very large.

[0022] 2. When the present invention changes the position where water enters the PP cotton placement cylinder, the water inlet end and the water outlet end of the PP cotton will also change accordingly, that is, the number of times the water seeps downward through the PP cotton is basically the same as the number of times it seeps upward. This design further improves the utilization rate of the PP cotton. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the overall component appearance.

[0024] Figure 2 is a schematic diagram of the lid installation.

[0025] Figure 3 is a schematic diagram of the gear ring distribution.

[0026] Figure 4 is a schematic diagram of the check valve distribution.

[0027] Figure 5 is a schematic diagram of the cooperation between the inner water diversion shell and the outer water diversion shell.

[0028] Figure 6 is a schematic diagram of the outer water diversion shell structure.

[0029] Figure 7 is a schematic diagram of the inner water diversion shell structure.

[0030] Figure 8 is a schematic diagram of the cooperation between the adjusting ring and the top column.

[0031] Figure 9 is a schematic diagram of the adjusting ring structure.

[0032] Figure 10 is a schematic diagram of the water flow transition cover structure.

[0033] Figure 11 is a schematic diagram of the drainage cover structure.

[0034] Figure 12 It is a schematic installation diagram of a check valve.

[0035] Figure 13 It is a schematic structural diagram of a check valve.

[0036] Figure 14 It is a schematic structural diagram of a control switch.

[0037] Figure 15 It is a schematic diagram of the transmission between an intermediate gear and a gear ring.

[0038] Figure 16 It is a schematic structural diagram of a PP cotton placement cylinder.

[0039] Names of the reference numerals in the figure: 1. Cylinder body; 2. Cylinder cover; 3. Clean water outlet; 4. Sewage outlet; 5. Spiral fin; 6. Inner water diversion shell; 7. Drainage cover; 8. Outer water diversion shell; 9. Water flow transition cover; 10. Control switch; 11. PP cotton placement cylinder; 12. PP cotton; 13. Gear ring; 14. Intermediate gear; 15. Intermediate gear; 16. Rotating shaft; 17. Check valve; 18. Water inlet; 19. First water hole; 20. Installation cavity; 21. First water flow channel; 22. Second water hole; 23. Lever; 24. Second water flow channel; 25. Third water hole; 26. Protrusion; 27. Guide hole; 28. Adjusting ring; 29. Thrust post; 30. Annular guide groove; 32. Fixed ring; 33. First spring; 34. Valve plug; 35. First arc-shaped water hole; 36. Outer cylinder; 37. Inner cylinder; 38. Partition; 39. Clean water discharge outlet; 40. Water pipe; 41. Sewage discharge outlet; 42. Second arc-shaped water hole; 43. Fourth water hole; 44. First annular groove; 45. Second annular groove; 46. Third annular groove; 47. Fourth annular groove; 48. Third arc-shaped water hole; 49. Sealing ring; 50. Fourth arc-shaped water hole; 51. Cavity; 52. First gear; 53. Second gear; 54. Tooth ring. Specific embodiments

[0040] The following will further describe in detail the specific embodiments of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments or drawings are used to illustrate the present invention, but not to limit the scope of the present invention.

[0041] A PP cotton 12 filtering device, as shown in Figure 1 、 2 、3, it includes a cylinder body 1, a cylinder cover 2, and PP cotton 12. Among them, as shown in Figure 3 , a clean water outlet 3 and a sewage outlet 4 are opened on the outer circumferential surface at the lower end of the cylinder body 1, and the clean water outlet 3 is located above the sewage outlet 4; as shown in Figure 2 、 3 , a control switch 10 is rotatably installed inside the cylinder body 1, as shown in Figure 14As shown, the control switch 10 is of a cylindrical hollow structure, and the control switch 10 is divided into two parts, an outer cylinder 36 and an inner cylinder 37. The lower ends of the inner cylinder 37 and the outer cylinder 36 are interconnected; an annular partition 38 is fixedly installed in both the inner cylinder 37 and the outer cylinder 36, and the partition 38 separates the inner cylinder 37 and the outer cylinder 36 up and down; the upper cavities of the inner cylinder 37 and the outer cylinder 36 are interconnected by a water pipe 40 arranged in the lower cavity; two second arc-shaped water holes 42 are opened on the lower cavities of the inner cylinder 37 and the outer cylinder 36, and a clean water discharge port 39 and a sewage discharge port 41 are opened on the outer wall surface of the outer cylinder 36, as Figure 3 、 14 shown, the clean water discharge port 39 is located above the partition 38 and communicates with the clean water port 3 opened on the cylinder body 1, and the sewage discharge port 41 is located below the partition 38 and communicates with the sewage port 4 opened on the cylinder body 1; two first arc-shaped water holes 35 are opened on the upper cavities of the inner cylinder 37 and the outer cylinder 36, and the two first arc-shaped water holes 35 are circumferentially symmetrically distributed and the central angles of the arcs are both 170 degrees; as Figure 15 shown, an intermediate gear 15 is rotatably installed in the cylinder body 1, and a toothed ring 13 is fixedly installed at the lower end of the control switch 10. The toothed ring 13 and the intermediate gear 15 are drivingly connected by three groups of transition gears 14.

[0042] As Figure 16 shown, the PP cotton placement cylinder 11 is successively provided with a first annular groove 44, a second annular groove 45, a third annular groove 46 and a fourth annular groove 47 from the inside to the outside. The lower ends of the first annular groove 44 and the second annular groove 45 are interconnected, and the lower ends of the third annular groove 46 and the fourth annular groove 47 are interconnected; the PP cotton placement cylinder 11 is fixedly installed in the cylinder body 1 and is located between the inner cylinder 37 and the outer cylinder 36 of the control switch 10; a third arc-shaped water hole 48 is opened on the side wall of the first annular groove 44 close to the inner cylinder 37, and the third arc-shaped water hole 48 cooperates with the second arc-shaped water hole 42 opened on the inner cylinder 37 of the control switch 10; a fourth arc-shaped water hole 50 is opened on the side of the fourth annular groove 47 close to the outer cylinder 36, and the fourth arc-shaped water hole 50 cooperates with the second arc-shaped water hole 42 opened on the outer cylinder 36 of the control switch 10; a sealing ring 49 is installed between the PP cotton placement cylinder 11 and the control switch 10; a fourth water hole 43 is respectively opened on one side of the upper end of the first annular groove 44 close to the inner cylinder 37 and one side of the upper end of the fourth annular groove 47 close to the outer cylinder 36; the two fourth water holes 43 respectively cooperate with the two first arc-shaped water holes 35 opened at the upper end of the control switch 10; as Figure 12 、 13 shown, a check valve 17 is respectively installed on the inner walls of the upper ends of the first annular groove 44 and the fourth annular groove 47, and the check valve 17 is located below the fourth water hole 43; as Figure 10 shown, a water flow transition cover 9 is detachably installed at the upper ends of the second annular groove 45 and the third annular groove 46.

[0043] In the present invention, when the spiral blade 5 is impacted by water, it rotates. The rotation of the spiral blade 5 drives the rotation of the rotating shaft 16, and the rotating shaft 16 drives the rotation of the intermediate gear 15. The intermediate gear 15 drives the rotation of the toothed ring 13 through three groups of transition gears 14, and the rotation of the toothed ring 13 drives the rotation of the control switch 10, controlling the alignment of the fourth water holes 43 opened on the fourth annular groove 47 and the first annular groove 44 with the first arc-shaped water hole 35 opened on the inner cylinder 37 of the control switch 10.

[0044] As Figure 6 shown, the upper end of the cylinder cover 2 is the water inlet 18, and the cylinder cover 2 has an installation cavity 20; the lower end of the cylinder cover 2 is fixedly installed with an outer layer water guiding shell 8, and there is a circular plate between the outer layer water guiding shell 8 and the cylinder cover 2, and the first water hole 19 is opened on the circular plate; the upper end of the outer layer water guiding shell 8 has an annular convex region 26, and the inner circular surface of the convex region 26 is provided with circumferentially uniformly distributed second water holes 22. The outer layer water guiding shell 8 has a first water flow channel 21, and the lower end of the outer layer water guiding shell 8 is fixedly provided with an inner concave ring groove for plugging and mating with the cylinder body 1, and the outer layer water guiding shell 8 is nested and mated with the upper end of the fourth annular groove 47; As Figure 2 、 3 shown, the spiral blade 5 is rotatably installed in the installation cavity 20; the spiral blade 5 is installed with a rotating shaft 16, and the lower end of the rotating shaft 16 extends into the cylinder body 1 and is plugged and mated with the intermediate gear 15; As Figure 4 、 11 shown, the upper end of the first annular groove 44 is nested and installed with a drainage cover 7, and the upper end of the drainage cover 7 is plugged and slidably installed with an inner layer water guiding shell 6. The upper end of the inner layer water guiding shell 6 has a convexity 26, and a guiding hole 27 for the rotating shaft 16 to pass through is opened on the convexity 26. The outer circular surface of the convexity 26 is provided with circumferentially uniformly distributed third water holes 25. As Figure 5 shown, the convexity 26 of the inner layer water guiding shell 6 is nested and mated with the annular convex region 26 of the outer layer water guiding shell 8; the inner layer water guiding shell 6 has a second water flow channel 24; As Figure 7 shown, the inner layer water guiding shell 6 has a cavity 51, and an adjusting ring 28 is fixedly installed in the cavity 51. As Figure 9 shown, the lower end surface of the adjusting ring 28 is provided with an annular guide groove 30 with a circumferentially uniformly changing depth; As Figure 8 shown, a first gear 52 is fixedly installed on the rotating shaft 16, three second gears 53 are rotatably installed in the cavity 51 circumferentially uniformly, the three second gears 53 are meshed with the first gear 52, a toothed ring 54 is rotatably installed in the cavity 51, a dial rod 23 is fixedly installed on the outer circular surface of the toothed ring 54, and a top column 29 is fixedly installed on the dial rod 23. The top column 29 is located in the annular guide groove 30 of the adjusting ring 28 and is slidably mated with the annular guide groove 30.

[0045] In the present invention, when the top surface of the protrusion 26 of the inner water diversion shell 6 is lower than the second water hole 22 opened on the outer water diversion shell 8, the water entering from the upper end of the top cover will enter the outer water diversion shell 8 from the second water hole 22, that is, enter from the upper end of the fourth annular groove 47. When the third water hole 25 opened on the inner water diversion shell 6 is higher than the top surface of the outer water diversion shell 8, the water entering from the upper end of the top cover will enter the inner water diversion shell 6 from the third water hole 25, that is, enter from the upper end of the first annular guide groove 30.

[0046] When the rotating shaft 16 rotates, the rotating shaft 16 will drive the intermediate gear 15 to rotate. The intermediate gear 15 drives the toothed ring 13 to rotate through three sets of transition gears 14, and the rotation of the toothed ring 13 drives the control switch 10 to rotate. When the rotating shaft 16 rotates, it will drive the first gear 52 to rotate. The first gear 52 drives three second gears 53 to rotate. The rotation of the second gear 53 drives the toothed ring 54 to rotate. The toothed ring 54 drives the lever 23 to rotate, and the lever 23 drives the ejector pin 29 to rotate; when the ejector pin 29 rotates, under the action of the annular guide groove 30 in the adjusting ring 28, the inner water diversion shell 6 will slide up and down relative to the outer water diversion shell 8, that is, the water flowing into the upper end of the cylinder cover 2 will alternately enter the outer water diversion shell 8 and the inner water diversion shell 6; in the present invention, by reasonably designing the radii of the first gear 52 and the toothed ring 54, after the rotating shaft 16 is driven to rotate multiple circles by the spiral piece 5, the ejector pin 29 will be driven to rotate one circle, that is, the outer water diversion layer and the inner water diversion layer will be replaced once. By reasonably designing the radii of the intermediate gear 15, the transition gears 14 and the toothed ring 13 in the present invention, when the outer water diversion layer and the inner water diversion layer are replaced with water once, the alignment and misalignment of the fourth water hole 43 opened on the fourth annular groove 47 and the first annular groove 44 and the first arc-shaped water hole 35 opened on the inner cylinder 37 of the control switch 10 will also be replaced accordingly.

[0047] PP cotton 12 is installed in the first annular groove 44, the second annular groove 45, the third annular groove 46 and the fourth annular groove 47 on the PP cotton placement cylinder 11. There is a gap between the PP cotton 12 in the first annular groove 44 and the fourth annular groove 47 and the arm of the annular guide groove 30, and the PP cotton 12 in the first annular groove 44 and the fourth annular groove 47 is in close contact with the arm of the annular guide groove 30.

[0048] The one-way valve 17 includes a valve plug 34, a first spring 33, and a fixing ring 32. The fixing ring 32 is fixedly installed on the circumferential wall surfaces of the first annular groove 44 and the fourth annular groove 47. The valve plug 34 is slidably installed in the first annular groove 44 and the fourth annular groove 47, and the PP cotton 12 passes through the middle of the corresponding valve plug 34. A first spring 33 is installed between the valve plug 34 and the fixing ring 32.

[0049] The above are only the preferred embodiments of the present invention, and do not impose any form of limitation on the present invention. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

[0050] Embodiment: When using the filter cartridge designed by the present invention, in the initial state, the third water hole 25 opened on the inner water guiding shell 6 is higher than the top surface of the protrusion 26 in the outer water guiding shell 8, and the fourth water hole 43 opened on the first annular groove 44 is misaligned with the first arc-shaped water hole 35 opened on the inner cylinder 37 of the control switch 10, and the fourth water hole 43 opened on the fourth annular groove 47 is aligned with the first arc-shaped water hole 35 opened on the inner cylinder 37 of the control switch 10. Install the filter cartridge on the filter, control the water inlet of the filter, and the water enters from the water inlet end of the cylinder cover 2 and flows into the inner water guiding shell 6 after passing through the spiral fins 5, and the spiral fins 5 are driven to rotate; the water in the inner water guiding shell 6 enters the first annular groove 44, and a part of the water entering the first annular groove 44 seeps downward after being filtered by the corresponding PP cotton 12, while the other part of the water remains in the first annular groove 44 and is stored above the corresponding one-way valve 17. After the water is full, new water is injected continuously, and the water volume above the one-way valve 17 increases. When the volume remains unchanged, the increase in water volume will increase the water pressure, that is, the water above will squeeze the valve plug 34 in the one-way valve 17, causing the valve plug 34 to move downward and the first spring 33 to be compressed; the one-way valve 17 opens, and the water above flows downward to the lower side of the first annular groove 44, and finally flows into the lower cavity of the control switch 10 through the third arc-shaped water hole 48 opened at the lower end of the first annular groove 44, and finally is discharged from the sewage outlet 4 below the cylinder body 1; this part of the water plays a role in flushing the PP cotton 12 in the first installation groove; the water filtered by the PP cotton 12 in the first annular groove 44 flows along the channel between the first annular groove 44 and the second annular groove 45 into the second annular groove 45, and then flows upward along the PP cotton 12 in the second annular groove 45, and after being filtered by the PP cotton 12 in the second annular groove 45, it flows into the water flow transition cover 9, and flows into the third annular groove 46 from the water flow transition cover 9. The water flowing into the third annular groove 46 will flow to the lower side of the third annular groove 46 after being filtered by the PP cotton 12 therein. The water filtered by the PP cotton 12 in the third annular groove 46 flows along the channel between the third annular groove 46 and the fourth annular groove 47 into the fourth annular groove 47, and finally flows into the upper side of the one-way valve 17 in the fourth annular groove 47 after being filtered by the PP cotton 12 in the fourth annular groove 47, and finally flows into the upper cavity of the control switch 10 through the fourth water hole 43 opened at the upper end of the fourth annular groove 47 and the first arc-shaped water hole 35 opened on the inner cylinder 37 of the control switch 10, and finally is discharged from the purified water outlet 3 of the cylinder body 1 and flows into the secondary filter cartridge.

[0051] The rotation of the spiral vane 5 drives the rotation of the rotating shaft 16. The rotating shaft 16 drives the rotation of the intermediate gear 15. The intermediate gear 15 drives the rotation of the ring gear 13 through three groups of transition gears 14. The rotation of the ring gear 13 drives the rotation of the control switch 10. When the rotating shaft 16 rotates, it drives the rotation of the first gear 52. The first gear 52 drives the rotation of three second gears 53. The rotation of the second gears 53 drives the rotation of the gear ring 54. The gear ring 54 drives the rotation of the lever 23. The lever 23 drives the rotation of the ejector pin 29. When the ejector pin 29 rotates under the action of the annular guide groove 30 in the adjusting ring 28 and the squeaking gravity, the inner water guiding shell 6 will slide downward relative to the outer water guiding shell 8, making the top surface of the protrusion 26 of the inner water guiding shell 6 lower than the second water hole 22 opened on the outer water guiding shell 8. At the same time, the fourth water hole 43 opened on the fourth annular groove 47 is misaligned with the first arc-shaped water hole 35 opened on the inner cylinder 37 of the control switch 10, and the fourth water hole 43 opened on the first annular groove 44 is aligned with the first arc-shaped water hole 35 opened on the inner cylinder 37 of the control switch 10. The water entering from the top cover enters the outer water guiding shell 8, that is, enters from the upper side of the fourth annular groove 47. At this time, part of the water entering the fourth annular groove 47 seeps downward after passing through the corresponding PP cotton 12, and the other part of the water remains in the fourth annular groove 47 and is stored above the corresponding one-way valve 17. After the water is full, new water is injected continuously. The amount of water above the one-way valve 17 increases. When the volume remains unchanged, the increase in the amount of water will increase the water pressure, that is, the water above will squeeze the valve plug 34 in the one-way valve 17, making the valve plug 34 move downward and the first spring 33 compress. The one-way valve 17 opens, and the water above flows downward into the lower side of the fourth annular groove 47, and finally flows into the lower cavity of the control switch 10 from the fourth arc-shaped water hole 50 opened at the lower end of the fourth annular groove 47, and finally is discharged from the sewage outlet 4 below the cylinder body 1; this part of the water plays a role in flushing the PP cotton 12 in the fourth installation groove. The water filtered by the PP cotton 12 in the fourth annular groove 47 flows along the channel between the fourth annular groove 47 and the third annular groove 46 into the third annular groove 46, then flows upward along the PP cotton 12 in the third annular groove 46, and after passing through the filtration of the PP cotton 12 in the third annular groove 46, it flows into the water flow transition cover 9 and then into the second annular groove 45. The water flowing into the second annular groove 45 will flow into the lower side of the second annular groove 45 after passing through the filtration of the PP cotton 12 therein. The water filtered by the PP cotton 12 in the second annular groove 45 will flow along the channel between the second annular groove 45 and the first annular groove 44 into the first annular groove 44, and finally after passing through the filtration of the PP cotton 12 in the first annular groove 44, it flows into the upper side of the one-way valve 17 in the first annular groove 44, and finally flows into the upper cavity of the control switch 10 from the fourth water hole 43 opened at the upper end of the first annular groove 44 and the first arc-shaped water hole 35 opened on the inner cylinder 37 of the control switch 10, and finally is discharged from the water purification port 3 of the cylinder body 1 and flows into the secondary filtration cylinder.

Claims

1. A water purification filtration device, characterized in that: It includes a cylinder body, a cylinder cover, and PP cotton. An outer circumferential surface at the lower end of the cylinder body is provided with a purified water outlet and a sewage outlet, and the purified water outlet is located above the sewage outlet; a control switch is rotatably installed inside the cylinder body; The PP cotton placement cylinder is successively provided with a first annular groove, a second annular groove, a third annular groove, and a fourth annular groove from inside to outside. The lower ends of the first annular groove and the second annular groove are communicated, and the lower ends of the third annular groove and the fourth annular groove are communicated; the PP cotton placement cylinder is fixedly installed inside the cylinder body and is located between the inner cylinder and the outer cylinder of the control switch; a fourth water hole is respectively opened on one side of the upper end of the first annular groove close to the inner cylinder and one side of the upper end of the fourth annular groove close to the outer cylinder; a one-way valve is respectively installed on the inner walls of the upper ends of the first annular groove and the fourth annular groove; a water flow transition cover is detachably installed at the upper ends of the second annular groove and the third annular groove; the rotation of the control switch can control whether water flows out from the upper and lower ends of the first annular groove and the fourth annular groove; PP cotton is installed in the first annular groove, the second annular groove, the third annular groove, and the fourth annular groove on the PP cotton placement cylinder. There is a gap between the PP cotton in the first annular groove and the fourth annular groove and the annular guide groove, and the PP cotton in the first annular groove and the fourth annular groove is in close fit with the annular guide groove; The lower end of the cylinder cover is fixedly installed with an outer layer water diversion shell; the upper end of the outer layer water diversion shell has an annular convex area, and second water holes evenly distributed in the circumferential direction are opened on the inner circumferential surface of the convex area. The lower end of the outer layer water diversion shell has an inner concave annular groove for plugging and matching with the cylinder body, and the outer layer water diversion shell is nested and matched with the upper end of the fourth annular groove; a spiral piece is rotatably installed inside the cylinder cover; the spiral piece is installed with a rotating shaft, and the lower end of the rotating shaft extends into the cylinder body and is connected with the control switch through gear transmission; the upper end of the first annular groove is nested and installed with a drainage cover, and the upper end of the drainage cover is plugged and slidably installed with an inner layer water diversion shell. The upper end of the inner layer water diversion shell has a protrusion, and third water holes evenly distributed in the circumferential direction are opened on the outer circumferential surface of the protrusion. The protrusion of the inner layer water diversion shell is nested and matched with the annular convex area of the outer layer water diversion shell; when the rotating shaft rotates, it can control the up and down sliding of the inner layer water diversion shell relative to the outer layer water diversion shell; The control switch is a cylindrical hollow structure, and the control switch is divided into two parts, an outer cylinder and an inner cylinder. The lower ends of the inner cylinder and the outer cylinder are communicated with each other; an annular partition is fixedly installed inside both the inner cylinder and the outer cylinder, and the partition divides the inner cylinder and the outer cylinder into upper and lower parts; the upper cavities of the inner cylinder and the outer cylinder are connected with each other through a water pipe arranged in the lower cavity; two second arc-shaped water holes are opened on the lower cavities of the inner cylinder and the outer cylinder, and a purified water discharge outlet and a sewage discharge outlet are opened on the outer wall surface of the outer cylinder. The purified water discharge outlet is located above the partition and is communicated with the purified water outlet opened on the cylinder body, and the sewage discharge outlet is located below the partition and is communicated with the sewage outlet opened on the cylinder body; Two first arc-shaped water holes are opened on the upper cavities of the inner cylinder and the outer cylinder. The two first arc-shaped water holes are circumferentially symmetrically distributed and the central angles of the arcs are both 170 degrees; a fourth water hole is respectively opened on one side of the upper end of the first annular groove close to the inner cylinder and one side of the upper end of the fourth annular groove close to the outer cylinder; the two fourth water holes are respectively matched with the two first arc-shaped water holes opened at the upper end of the control switch; An intermediate gear is rotatably mounted in the cylinder, a gear ring is fixedly mounted at the lower end of the control switch, the gear ring and the intermediate gear are connected through three sets of transition gears, and the lower end of the rotating rod is inserted into the cylinder and plug-connected with the intermediate gear; A third arc-shaped water hole is opened on the wall surface of the first annular groove close to the inner cylinder, and the third arc-shaped water hole cooperates with the second arc-shaped water hole opened on the inner cylinder of the control switch; a fourth arc-shaped water hole is opened on the side of the fourth annular groove close to the outer cylinder, and the fourth arc-shaped water hole cooperates with the second arc-shaped water hole opened on the outer cylinder of the control switch.

2. The water purification and filtration device according to claim 1, characterized in that: A sealing ring is installed between the PP cotton placing cylinder and the control switch.

3. A water purification and filtration device according to claim 1, characterized in that: The upper end of the cylinder cover is a water inlet, and a mounting cavity is arranged inside the cylinder cover; a circular plate is arranged between the outer water diversion shell and the cylinder cover, and a first water hole is opened on the circular plate; and the spiral piece is rotatably installed in the mounting cavity.

4. A water purification and filtration device according to claim 1, characterized in that: The outer water induction shell has a first water flow channel, and the inner water induction shell has a second water flow channel; the protrusion is provided with a guide hole for the rotating shaft to pass through.

5. A water purification and filtration device according to claim 1, characterized in that: The inner water-inducing shell is provided with a cavity, an adjusting ring is fixedly installed in the cavity, and an annular guide groove with a circumferentially uniformly varying depth is opened on the lower end surface of the adjusting ring; a first gear is fixedly installed on the rotating shaft, three second gears are circumferentially uniformly rotated and installed in the cavity, the three second gears are meshed with the first gear, the gear ring is rotatably installed in the cavity, a shift rod is fixedly installed on the outer circumferential surface of the gear ring, a top column is fixedly installed on the shift rod, and the top column is located in the annular guide groove of the adjusting ring and slides in cooperation with the annular guide groove.

6. A water purification filtration device according to claim 1, characterized in that: The one-way valve includes a valve plug, a first spring, and a fixed ring, wherein the fixed ring is fixedly installed on the annular wall surfaces of the first annular groove and the fourth annular groove, the valve plug is slidably installed in the first annular groove and the fourth annular groove, and the PP cotton passes through the middle of the corresponding valve plug, and the first spring is installed between the valve plug and the fixed ring.

Images