Filter element for water purifier

Abstract

A filter element for a water purifier comprises fastening top covers and a filter element inner cylinder, the two ends of the filter element inner cylinder are connected with the fastening top covers, the fastening top covers are symmetrically arranged, one sides of the fastening top covers are provided with positioning protrusions, the other sides of the fastening top covers are provided with fixing protrusions, the outer sides of the fixing protrusions are provided with a plurality of fastening connecting hooks, and the fastening connecting hooks are evenly distributed on the outer sides of the fixing protrusions. A positioning concave ring is arranged on the periphery of the fixing protrusion, fixing grooves are formed in the two ends of the filter element inner cylinder, the fixing grooves are symmetrically formed, and the fixing grooves are matched with the fixing protrusion, the multi-layer filtering effect is good, the quality of purified water discharged after filtering is better, no black water phenomenon exists at the water outlet end, the service life of the next-stage filter element is prolonged, the quality of purified water discharged by the water purifier is better, and the service life of the water purifier is prolonged. The filter element is reasonable in structure, and the plurality of filter layers are firmly fixed on the outer side of the filter element inner cylinder by the two fastening top covers, so that the whole structure is more stable.

Description

Technical Field

[0001] This utility model relates to the field of water purifiers, and in particular to a filter element for water purifiers. Background Technology

[0002] An existing patent (publication number: CN 205575685 U) discloses a filter element for a water purifier, including a filter frame, a filter cover, an upper cover, a lower cover, and an inner liner. The filter frame is designed to be hollow, with the upper cover snapped onto the upper end and the lower cover snapped onto the lower end. The upper cover has a hollow head in the middle facing the filter frame, and the hollow head is integrally formed with the upper cover. The filter cover is fixed to the inner wall of the filter frame and is designed to be cylindrical. Both the upper and lower ends of the filter frame are provided with gasket grooves, and sealing rings are fitted inside the gasket grooves. The inner liner is fitted inside the filter frame, and the inner liner has a hollow opening at its bottom. An integrally formed sieve plate is provided in the middle of the inner liner, and water purification filter material is placed in the space formed by the inner liner and the sieve plate. The above device structure is not stable enough, is prone to loosening during use, and has poor filtration effect. The structure needs to be improved. Summary of the Invention

[0003] This utility model addresses the aforementioned shortcomings of existing technologies by providing a multi-layer filter element for water purifiers. This element offers superior filtration performance, produces better-quality filtered water, eliminates black water at the outlet, extends the lifespan of subsequent filter elements, and enhances the quality of the water discharged from the purifier. Furthermore, it features a rationally designed structure where multiple filter layers are firmly secured to the outer side of the filter element's inner cylinder by two fastening top covers, resulting in a more stable overall structure.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A filter cartridge for a water purifier includes a fastening top cover and a filter cartridge inner cylinder. The two ends of the filter cartridge inner cylinder are connected to the fastening top cover, which is symmetrically arranged. One side of the fastening top cover has a positioning protrusion, and the other side of the fastening top cover has a fixing protrusion. Multiple fastening hooks are evenly distributed on the outer side of the fixing protrusion. A positioning concave ring is provided around the fixing protrusion. The two ends of the filter cartridge inner cylinder have fixing grooves, which are symmetrically arranged and adapted to the fixing protrusion. The inner side of the fixing groove is connected to the fixing protrusion.

[0006] The fixed groove of this utility model has multiple fastening slots on the outside. The fastening slots are evenly distributed on the outside of the fixed groove. The fastening slots are adapted to the fastening hooks. The fastening hooks are connected to the inside of the fastening slots. The two ends of the filter cotton fixing sleeve are connected to positioning recesses.

[0007] The filter cotton fixing sleeve of this utility model has multiple second positioning frames on the inner side, which are evenly distributed on the inner side of the filter cotton fixing sleeve. The filter cotton fixing sleeve also has multiple first positioning frames on the outer side, which are evenly distributed on the outer side of the filter cotton fixing sleeve.

[0008] The filter cotton fixing sleeve of this utility model has multiple filter screen fixing frames inside, which are evenly distributed inside the filter cotton fixing sleeve. The filter screen fixing frames are located between the first positioning frame and the second positioning frame. The first positioning frame is connected to the first precision PP cotton filter layer, and the filter screen fixing frame is connected to the supporting filter. The second positioning frame is connected to the second precision PP cotton filter layer. A second water cavity is set between the filter cotton fixing sleeve and the inner cylinder of the filter element. A second PP cotton filter layer is set around the filter cotton fixing sleeve. The two ends of the second PP cotton filter layer are connected to the fastening top cover. An activated carbon filter cavity is set between the second PP cotton filter layer and the filter cotton fixing sleeve. Activated carbon particles are connected to the inside of the activated carbon filter cavity. A first PP cotton filter layer is set outside the second PP cotton filter layer. The two ends of the first PP cotton filter layer are connected to the fastening top cover. A first water cavity is set between the second PP cotton filter layer and the first PP cotton filter layer. Beneficial effects

[0009] This utility model device has a multi-layer filtration system consisting of a first PP cotton filter layer, a second PP cotton filter layer, activated carbon particles, a first precision PP cotton filter layer, and a second precision PP cotton filter layer to filter tap water. The multi-layer filtration has a good filtration effect, and the filtered water discharged has better quality.

[0010] This invention, through the cooperation of the first and second precision PP cotton filter layers, filters activated carbon particles, preventing the released activated carbon particles from being discharged with the water flow during use, thus eliminating black water at the outlet, increasing the lifespan of the next filter element, and resulting in better quality purified water from the water purifier. The design is also highly efficient.

[0011] This utility model has multiple filter layers that are firmly fixed to the outside of the filter element inner cylinder by two fastening top covers, which effectively prevents the filter layers from deforming, avoids reducing the filtration effect of the device, and makes the overall structure more stable. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a filter element for a water purifier according to the present invention.

[0013] Figure 2 This is a schematic diagram of the filter element fastening top cover structure for a water purifier according to the present invention.

[0014] Figure 3 This is a schematic diagram of the No. 2 PP cotton filter layer structure of a water purifier filter element according to the present invention.

[0015] Figure 4 This is a schematic diagram of the filter element and filter cotton fixing sleeve structure for a water purifier according to the present invention.

[0016] Figure 5This is a schematic diagram of the inner cylinder structure of a filter element for a water purifier according to the present invention.

[0017] Figure 6 This is a bottom view of the inner cylinder structure of a filter element for a water purifier according to the present invention.

[0018] Figure 7 This is a cross-sectional view of the filter element structure for a water purifier according to the present invention. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0020] Example 1:

[0021] A filter cartridge for a water purifier includes a fastening top cover 02 and a filter cartridge inner cylinder 08. The two ends of the filter cartridge inner cylinder 08 are connected to the fastening top cover 02. The fastening top cover 02 is symmetrically arranged. One side of the fastening top cover 02 has a positioning protrusion 21, and the other side of the fastening top cover 02 has a fixing protrusion 16. Multiple fastening hooks 22 are evenly distributed on the outside of the fixing protrusion 16. A positioning recessed ring 23 is provided around the fixing protrusion 16. The two ends of the filter cartridge inner cylinder 08 have fixing grooves 17. The fixing grooves 17 are symmetrically arranged and are adapted to the fixing protrusions 16. The inner side of the fixing grooves 17 is connected to the fixing protrusions 16.

[0022] Example 2:

[0023] The outer side of the fixing groove 17 of this utility model has multiple fastening slots 09. The fastening slots 09 are evenly distributed on the outer side of the fixing groove 17. The fastening slots 09 are adapted to the fastening connecting hooks 22. The fastening slots 09 are connected to the fastening connecting hooks 22 on the inner side. The filter cotton fixing sleeve 04 is connected to the positioning recesses 23 at both ends.

[0024] Example 3:

[0025] The filter cotton fixing sleeve 04 of this utility model has multiple second positioning frames 07 on the inner side, which are evenly distributed on the inner side of the filter cotton fixing sleeve 04. The filter cotton fixing sleeve 04 has multiple first positioning frames 05 on the outer side, which are evenly distributed on the outer side of the filter cotton fixing sleeve 04.

[0026] Example 4:

[0027] This utility model's filter cotton fixing sleeve 04 has multiple filter screen fixing frames 06 inside, which are evenly distributed inside the filter cotton fixing sleeve 04. The filter screen fixing frames 06 are located between a first positioning frame 05 and a second positioning frame 07. The inner side of the first positioning frame 05 is connected to a first precision PP cotton filter layer 13, and the inner side of the filter screen fixing frame 06 is connected to a supporting filter screen 15. The inner side of the second positioning frame 07 is connected to a second precision PP cotton filter layer 14. A second water cavity 12 is provided between the filter cotton fixing sleeve 04 and the filter element inner cylinder 08. A second PP cotton filter layer 03 is provided around the filter cotton fixing sleeve 04, and both ends of the second PP cotton filter layer 03 are connected to a fastening top cover 02. An activated carbon filter cavity 11 is provided between the second PP cotton filter layer 03 and the filter cotton fixing sleeve 04, and the inner side of the activated carbon filter cavity 11 is connected to activated carbon particles 18. A first PP cotton filter layer 01 is provided outside the second PP cotton filter layer 03, and both ends of the first PP cotton filter layer 01 are connected to a fastening top cover 02. A water chamber 10 is provided between the No. 2 PP cotton filter layer 03 and the No. 1 PP cotton filter layer 01. This device has a multi-layer filtration system that filters tap water using the No. 1 PP cotton filter layer 01, the No. 2 PP cotton filter layer 03, activated carbon particles 18, the No. 1 precision PP cotton filter layer 13, and the No. 2 precision PP cotton filter layer 14. The multi-layer filtration has a good filtration effect, and the filtered water has better quality. With the cooperation of the No. 1 precision PP cotton filter layer 13 and the No. 2 precision PP cotton filter layer 14, the activated carbon particles 18 are filtered, preventing the activated carbon particles 18 from being discharged with the water flow during use, so that there is no black water phenomenon at the outlet, increasing the life of the next stage filter element, and making the water discharged from the water purifier better. The structure is reasonable. The multiple filter layers are firmly fixed to the outside of the filter element inner cylinder 08 by two fastening top covers 02, which effectively prevents the filter layers from deforming, avoids reducing the filtration effect of the device, and makes the overall structure more stable.

[0028] Example 5:

[0029] Installation Steps: When using, place the device inside the filter cartridge protective sleeve of the water purifier. This device has a multi-layer filtration system consisting of a first PP cotton filter layer 01, a second PP cotton filter layer 03, activated carbon particles 18, a first precision PP cotton filter layer 13, and a second precision PP cotton filter layer 14 to filter tap water. The multi-layer filtration provides better filtration and results in higher quality purified water. The first precision PP cotton filter layer 13 and the second precision PP cotton filter layer 14 work together to filter the activated carbon particles 18, preventing the activated carbon particles 18 from being discharged with the water flow during use, thus eliminating black water at the outlet and increasing the lifespan of the next filter cartridge. This results in better quality purified water discharged from the water purifier. The structure is reasonable, and the multiple filter layers are firmly fixed to the outside of the filter cartridge inner cylinder 08 by two fastening top covers 02, effectively preventing deformation of the filter layers and avoiding a reduction in the filtration effect of the device, making the overall structure more stable.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A filter cartridge for a water purifier, characterized by : Including fastening top cover (02), filter core inner tube (08), the both ends of filter core inner tube (08) are connected fastening top cover (02), fastening top cover (02) is symmetrically arranged, fastening top cover (02) one side has locating convex (21), fastening top cover (02) other side has fixed convex (16), fixed convex (16) outside has multiple fastening connecting hooks (22), fastening connecting hooks (22) are evenly distributed in fixed convex (16) outside, fixed convex (16) periphery is provided with locating concave ring (23), filter core inner tube (08) both ends have fixed recess (17), fixed recess (17) is symmetrically arranged, fixed recess (17) is adapted to fixed convex (16), fixed recess (17) inside is connected fixed convex (16).

2. The filter cartridge of claim 1 wherein : Fixed recess (17) outside has multiple fastening slots (09), fastening slots (09) are evenly distributed in fixed recess (17) outside, fastening slots (09) are adapted to fastening connecting hooks (22), fastening slots (09) inside are connected fastening connecting hooks (22), filter cotton fixed sleeve (04) both ends are connected locating concave ring (23).

3. The filter cartridge of claim 2 wherein : Filter cotton fixed sleeve (04) inside has multiple second locating frame (07), second locating frame (07) is evenly distributed in filter cotton fixed sleeve (04) inside, filter cotton fixed sleeve (04) outside has multiple first locating frame (05), first locating frame (05) is evenly distributed in filter cotton fixed sleeve (04) outside.

4. The filter cartridge of claim 3 wherein : Filter cotton fixed sleeve (04) inside has multiple filter screen fixed frame (06), filter screen fixed frame (06) is evenly distributed in filter cotton fixed sleeve (04) inside, filter screen fixed frame (06) is located between first locating frame (05) and second locating frame (07), first locating frame (05) inside is connected first precision PP cotton filter layer (13), filter screen fixed frame (06) inside is connected support filter screen (15), second locating frame (07) inside is connected second precision PP cotton filter layer (14), filter cotton fixed sleeve (04) and filter core inner tube (08) between being provided with second water cavity (12), filter cotton fixed sleeve (04) periphery is provided with second PP cotton filter layer (03), second PP cotton filter layer (03) both ends are connected fastening top cover (02), second PP cotton filter layer (03) and filter cotton fixed sleeve (04) between being provided with activated carbon filter cavity (11), activated carbon filter cavity (11) inside is connected activated carbon particle (18), second PP cotton filter layer (03) outside is provided with first PP cotton filter layer (01), first PP cotton filter layer (01) both ends are connected fastening top cover (02), second PP cotton filter layer (03) and first PP cotton filter layer (01) between being provided with first water cavity (10).

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