Replaceable composite filter cartridge

Abstract

The utility model provides a kind of replaceable composite filter element, including filter outer core, further include: filter inner core, the filter inner core sleeve joint setting in the inside of filter outer core. By coarse filter layer and fine filter layer, it is convenient to filter by multilayer composite structure better, so that the filtering effect greatly improves, so that the filter element can better filter sewage, the present application adopts inner and outer core structure, and disassembly is convenient, it is convenient to make the whole filter element disassembly cleaning convenient, by clamping frame can better be positioned and fixed in filter outer core inside filter inner core, it is convenient to avoid the problem that the insertion slot cannot be aligned with handle when connecting hole and connector are aligned, leading to the docking of two filter elements is more troublesome, by splicing together two filter elements, it is convenient to better splice filter element according to the difference of sewage filtering device, so as to adjust the overall length of filter element appropriately.

Claims

1. A replaceable composite filter cartridge comprising a filter outer core (1), characterized in that, Also includes: The filter inner core (2) is sleeved on the inner side of the filter outer core (1); The snap-fit ​​positioning structure (3) is set on both sides of the top of the filter inner core (2). The snap-fit ​​positioning structure (3) assists the filter inner core (2) in positioning and fixing on the filter outer core (1). The snap-fit ​​positioning structure (3) includes a snap-fit ​​bracket (301), a sliding sleeve (302), a connecting rod (303), a fixing block (304), and a spring (305). The fixing block (304) is fixedly connected to the side walls on both sides of the upper docking seat (201). Two connecting rods (303) are fixedly connected to the side walls of the fixing block (304). The ends of the two connecting rods (303) are circular and expand outward. Sliding sleeves (305) are slidably connected to the two connecting rods (303). 02), a spring (305) is fixedly connected between the inner wall of the connecting rod (303) and the sliding sleeve (302), and an "L"-shaped snap-fit ​​bracket (301) is fixedly connected to the ends of the two sliding sleeves (302). The fixing block (304) and the snap-fit ​​bracket (301) cooperate with the snap-fit ​​groove one (112). The horizontal plate of the snap-fit ​​bracket (301) cooperates with the snap-fit ​​groove three (115), and the vertical plate of the snap-fit ​​bracket (301) cooperates with the snap-fit ​​groove two (114).

2. The replaceable composite filter cartridge of claim 1 wherein: The filter core (1) consists of an upper mounting base (101), a coarse filter layer (102) and a lower mounting base (103). An annular coarse filter layer (102) is fixedly connected to the bottom side wall of the upper mounting base (101), and the lower mounting base (103) is fixedly connected to the bottom side wall of the coarse filter layer (102).

3. The replaceable composite filter cartridge of claim 2 wherein: The coarse filter layer (102) is composed of a coarse filter screen (1021), an adsorption layer (1022) and a honeycomb filter screen (1023). The adsorption layer (1022) is fixedly disposed on the inner wall of the coarse filter screen (1021), and the honeycomb filter screen (1023) is fixedly disposed on the inner wall of the adsorption layer (1022).

4. The replaceable composite filter cartridge of claim 3 wherein: The adsorption layer (1022) contains activated carbon and modified zeolite.

5. The replaceable composite filter cartridge of claim 2 wherein: The upper mounting base (101) has six connectors (111) fixedly connected at equal intervals on its side wall. The upper mounting base (101) has a snap-fit ​​groove 1 (112) and a snap-fit ​​groove 3 (115) on its top side wall. The snap-fit ​​groove 1 (112) and the snap-fit ​​groove 3 (115) are connected to each other. The lower mounting base (103) has connection holes (113) at equal intervals on its bottom side wall. The lower mounting base (103) has two snap-fit ​​grooves 2 (114) on its bottom side wall. The height of the snap-fit ​​groove 3 (115) is half the height of the snap-fit ​​groove 1 (112). The position and size of the connection holes (113) are matched with the connectors (111).

6. The replaceable composite filter cartridge of claim 1 wherein: The filter core (2) consists of an upper docking seat (201), a fine filter layer (202), a sleeve ring (203), and a lower docking seat (204). The fine filter layer (202) is connected to the bottom side wall of the upper docking seat (201), and the lower docking seat (204) is connected to the bottom side wall of the fine filter layer (202). The sleeve ring (203) is fixedly connected at equal intervals on the outer side wall of the fine filter layer (202).

7. The replaceable composite filter cartridge of claim 6 wherein: The fine filter layer (202) is composed of a fine filter screen (2021) and a filter membrane (2022). The fine filter layer (202) is configured as an enclosed structure, with the fine filter screen (2021) arranged on both sides as an outer layer, and the filter membrane (2022) placed between the fine filter screen (2021) as an inner interlayer.

8. The replaceable composite filter cartridge of claim 7 wherein: The filter membrane (2022) has a pore size of 0.01 μm.

9. The replaceable composite filter cartridge of claim 6 wherein: The upper docking seat (201) has a docking groove (212) on its side wall. A handle (211) is fixedly connected to the inner side wall of the docking groove (212). The middle side wall of the lower docking seat (204) protrudes outward to form a docking boss (213). The docking boss (213) and the side wall of the lower docking seat (204) have insertion grooves (214). The docking boss (213) and the docking groove (212) cooperate with each other. The handle (211) and the insertion groove (214) cooperate with each other.

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