Multi-stage composite activated carbon drinking water filtering device

Abstract

The invention discloses a multi-stage composite activated carbon drinking water filtering device, and relates to the technical field of water purifying equipment, the multi-stage composite activated carbon drinking water filtering device comprises a water purifying kettle and a filtering main body, a partition plate is fixed in the water purifying kettle and divides the water purifying kettle into an upper part and a lower part, and a step groove is formed in the middle of the partition plate. In the using process, the water purifying kettle is divided into an upper part and a lower part by the partition plate, raw water enters from the water inlet of the upper raw water storage area and enters the coarse filter cylinder from outside to inside to be filtered for the first time, intercepted coarse particles can naturally settle in the bowl-shaped groove above the embedded block after the raw water flows out, and cleaning is convenient; the coarse filter cartridge and the fine filter cartridge are longitudinally communicated, so that raw water is led out from inside to outside by the fine filter cartridge again for secondary filtration, intercepted fine particles enter the collection cavity from the slag discharge port in the bottom of the conical surface of the fine filter cartridge to be cleaned conveniently, particles in a field water source can be fully filtered out through two times of filtration, and the water quality can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of water purification equipment, in particular to a multi-stage composite activated carbon drinking water filtering device. Background Art

[0002] As the concept of healthy living has gradually gained popularity, people are paying more and more attention to the safety of drinking water. Since drinking water safety is closely related to people's daily lives, people's demand for water purification equipment is gradually increasing. People living in the wild often face the problem of lack of drinking water due to limited drinking water. Spring water or stream water can solve this problem. However, spring water and stream water still need water purification equipment to filter them.

[0003] Currently, the activated carbon purification kettles on the market all have single-layer activated carbon filters. Raw water enters the water storage area, and the raw water is added from the upper layer of the activated carbon filter element. After being filtered by the activated carbon, it enters the water storage area. The disadvantage of such a water purification device is that because of downstream filtration, when the pressure of the raw water is high, the speed of flowing through the activated carbon filter element is fast, the purification effect is poor, and the water quality cannot be effectively improved. Moreover, due to the volume, the filter element height, that is, the carbon layer height, cannot be too high, resulting in a short activated carbon use time. In addition, the particulate matter content in wild water sources is relatively high, and the existing structure that uses a single-layer dense wire mesh structure for one-time filtration cannot fully filter out the particulate matter in the water.

[0004] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a multi-stage composite activated carbon drinking water filtration device is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a multi-stage composite activated carbon drinking water filter 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 scheme: a multi-stage composite activated carbon drinking water filter device, comprising a water purification kettle and a filter body, a partition is fixed inside the water purification kettle, and the partition divides the inside of the water purification kettle into two parts, an upper and a lower part, and a step groove is opened in the middle of the partition, and the filter body is embedded in the middle of the partition through the step groove, and the filter body comprises a coarse filter cartridge, an insert, a bowl-shaped groove, a sealing ring, a threaded block, a fine filter cartridge and a slag discharge port, an insert is fixed on the peripheral wall of the coarse filter cartridge, and the shape of the insert is consistent with the size of the step groove, an inwardly recessed bowl-shaped groove is opened on the top of the insert, and a sealing ring is mounted on the bottom of the insert, a threaded block is fixed to the bottom of the coarse filter cartridge in an integrated manner, and a fine filter cartridge is fixed in the middle of the threaded block, and a slag discharge port is opened at the end of the conical surface of the bottom of the fine filter cartridge.

[0007] Furthermore, the coarse filter cartridge, the insert and the fine filter cartridge form an integrated structure from top to bottom, and the filter mesh number of the fine filter cartridge is twice that of the coarse filter cartridge.

[0008] Furthermore, raw water enters the cavity from the outside to the inside through the coarse filter cartridge for primary filtration, and the coarse filter cartridge and the fine filter cartridge are longitudinally connected, and raw water is guided out of the cavity from the inside to the outside through the fine filter cartridge for secondary filtration.

[0009] Furthermore, a water level window is provided on the side of the water purifier kettle, and a handle is fixed at the rear end of the water purifier kettle.

[0010] Furthermore, the portion above the partition is divided into a raw water storage area, and a water inlet is opened at the top of the raw water storage area.

[0011] Furthermore, the lower part of the partition is divided into a clean water storage area, and a water outlet is opened on the side of the clean water storage area, and the clean water storage area is connected to the raw water storage area through a step groove.

[0012] Furthermore, an unpowered cleaning component rotates inside the coarse filter cartridge, and the unpowered cleaning component includes a rotating shaft, ribs, an impeller and a scraper. The rotating shaft rotates in the middle of the coarse filter cartridge flow channel through a hollow bracket, and ribs are distributed in an array on the top of the rotating shaft, and an annular impeller is fixed to one end of the ribs away from the rotating shaft. A scraper is coaxially connected to the bottom of the rotating shaft, and the scraper is tightly fitted to the inner wall of the fine filter cartridge.

[0013] Furthermore, a consumable component is nested outside the fine filter cartridge, and the consumable component includes an outer shell and a protective layer. The outer shell is threadedly fixed to the outside of the threaded block, and the outer shell peripheral wall is provided with a protective layer, and the protective layer is made of polypropylene non-woven fabric.

[0014] Furthermore, the consumable assembly also includes a layer plate, a collection chamber and an end cover. A layer plate is horizontally fixed at the bottom of the shell, and a through hole connected to the slag discharge port is provided in the middle of the layer plate. A collection chamber is opened at the bottom of the layer plate, and the bottom opening of the collection chamber is tightly fitted with an end cover.

[0015] Furthermore, the consumable component also includes activated carbon filter cotton, which is placed above the layer plate and is located within the gap between the outer shell and the fine filter cartridge structure. The activated carbon filter cotton is a wrinkled multi-level pore activated carbon structure, and the activated carbon filter cotton is an activated carbon material having large-sized pores, mesopores and a certain proportion of micropores.

[0016] The present invention provides a multi-stage composite activated carbon drinking water filter device, which has the following beneficial effects:

[0017] 1. During the use of the present invention, the water purifier of the present application is divided into two parts, upper and lower parts, by a partition. Raw water enters from the water inlet located in the upper raw water storage area, and enters the coarse filter cartridge from the outside to the inside for a filtration. The retained coarse particles will naturally settle in the bowl-shaped groove above the embedded block after the raw water flows out, which is convenient for cleaning. The coarse filter cartridge and the fine filter cartridge are longitudinally connected, so that the raw water is again guided out from the inside to the outside by the fine filter cartridge for a secondary filtration. The retained fine particles enter the collecting chamber from the slag discharge port at the bottom of the conical surface of the fine filter cartridge for easy cleaning. Through two filtrations, the particles in the wild water source can be fully filtered out, effectively improving the water quality.

[0018] 2. During the use of the present invention, in the process of raw water passing from the coarse filter cartridge to the fine filter cartridge, the impeller drives the rotating shaft to rotate through the ribs under the impact of the water flow, and further drives the scraper at the bottom of the rotating shaft to rotate against the inner wall of the fine filter cartridge to prevent relatively fine particles from being stuck in the mesh of the fine filter cartridge and causing blockage. The present application designs the unpowered cleaning component as an unpowered structure that can rotate with the help of the impact of the water flow, which can keep the mesh of the fine filter cartridge unobstructed while reducing costs, and prevent the reduction of water output due to mesh blockage. The present application designs the filter body as an integrated structure of the coarse filter cartridge, the insert and the fine filter cartridge from top to bottom. When cleaning is needed, the filter body can be pulled out of the step groove as a whole. On the one hand, the end cover at the bottom of the collection chamber is pulled out to clean the precipitated fine particles. On the other hand, the coarse particles precipitated in the bowl-shaped groove are reversed and dumped, so that the cleaning work of the filter body can be quickly completed without disassembly and cleaning, which is convenient to use.

[0019] 3. During the use of the present invention, the consumable component carries activated carbon filter cotton that needs to be replaced regularly. Therefore, the present application designs the outer shell as a split structure that is threadedly fixed to the outside of the threaded block. Activated carbon filter cotton is arranged in the gap between the outer shell and the fine filter cartridge structure. The activated carbon filter cotton of the present application is a pleated multi-stage pore activated carbon structure, which can effectively improve the filtration area and effect of the activated carbon filter cotton. In addition, the flow channel design in which the raw water enters the cavity from the outside to the inside through the coarse filter cartridge for primary filtration and then is discharged from the cavity from the inside to the outside through the fine filter cartridge for secondary filtration optimizes the downstream filtration design of the prior art, reduces the pressure of the raw water so that it can flow evenly and slowly through the activated carbon filter cotton for full filtration. The protective layer arranged on the peripheral wall of the outer shell is made of polypropylene non-woven fabric, which further removes impurities in the water while eliminating the powder particle falling phenomenon of the activated carbon filter element in the prior art, making the outlet water clearer. The clean water flowing into the clean water storage area below can be poured out from the water outlet for drinking. Similarly, when cleaning is required, the outer shell can be unscrewed from the outside of the threaded block, and the new activated carbon filter cotton can be drawn out and replaced, which is also convenient, fast and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall external structure of the present invention;

[0021] Figure 2It is a schematic diagram of the overall internal structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the external structure of the filter body of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the filter body of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the unpowered cleaning component of the present invention;

[0025] Figure 6 It is a schematic diagram of the structure of the consumable component of the present invention.

[0026] In the figure: 1. water purification kettle; 2. water level window; 3. handle; 4. partition; 5. step groove; 6. raw water storage area; 7. water inlet; 8. clean water storage area; 9. water outlet; 10. filter body; 1001. coarse filter cartridge; 1002. insert; 1003. bowl-shaped groove; 1004. sealing ring; 1005. threaded block; 1006. fine filter cartridge; 1007. slag discharge port; 11. unpowered cleaning component; 1101. rotating shaft; 1102. ribs; 1103. impeller; 1104. scraper; 12. consumable component; 1201. outer shell; 1202. protective layer; 1203. layer plate; 1204. collecting chamber; 1205. end cover; 1206. activated carbon filter cotton. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following embodiments are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0028] See also Figures 1 to 5The present invention provides a technical solution: a multi-stage composite activated carbon drinking water filtration device, comprising a water purification pot 1 and a filtering body 10, a water level window 2 is provided on the side of the water purification pot 1, and a handle 3 is fixed on the rear end of the water purification pot 1, a partition 4 is fixed inside the water purification pot 1, and the partition 4 divides the inside of the water purification pot 1 into two parts, an upper part and an lower part, and a step groove 5 is provided in the middle of the partition 4, the upper part of the partition 4 is divided into a raw water storage area 6, and a water inlet 7 is provided on the top of the raw water storage area 6, the lower part of the partition 4 is divided into a clean water storage area 8, and a water outlet 9 is provided on the side of the clean water storage area 8, and the clean water storage area 8 is connected with the raw water storage area 6 through the step groove 5, the filtering body 10 is embedded in the middle of the partition 4 through the step groove 5, and the filtering body 10 comprises a coarse filter cartridge 1001, an insert 1002, a bowl-shaped groove 1003, a sealing ring 1004, a threaded block 1005, a fine filter cartridge 1006 and a slag discharge The coarse filter cartridge 1001 has an insert 1002 fixed to its peripheral wall, and the shape of the insert 1002 matches the size of the step groove 5. The top of the insert 1002 is provided with a bowl-shaped groove 1003 that is concave inward, and a sealing ring 1004 is mounted on the bottom of the insert 1002. A threaded block 1005 is integrally fixed to the bottom of the coarse filter cartridge 1001, and a fine filter cartridge 1006 is fixed to the middle of the threaded block 1005, and the conical surface of the bottom of the fine filter cartridge 1006 is A slag discharge port 1007 is provided at the end of the filter cartridge 1001, the coarse filter cartridge 1001, the insert 1002 and the fine filter cartridge 1006 form an integrated structure from top to bottom, and the mesh number of the fine filter cartridge 1006 is twice that of the coarse filter cartridge 1001. Raw water enters the cavity from the outside to the inside through the coarse filter cartridge 1001 for primary filtration, and the coarse filter cartridge 1001 and the fine filter cartridge 1006 are longitudinally connected, and the raw water is guided out of the cavity from the inside to the outside through the fine filter cartridge 1006 for secondary filtration;

[0029] The specific operation is as follows: the water purifier 1 of the present application is divided into two parts, upper and lower, by a partition 4; raw water enters from the water inlet 7 located in the upper raw water storage area 6, and enters the coarse filter cartridge 1001 from the outside to the inside for a filtration; the retained coarse particles will naturally settle in the bowl-shaped groove 1003 above the insert 1002 after the raw water flows out, which is convenient for cleaning; and the coarse filter cartridge 1001 and the fine filter cartridge 1006 are longitudinally connected, so that the raw water is again led out from the inside to the outside by the fine filter cartridge 1006 for secondary filtration; the retained fine particles enter the collection chamber 1204 from the slag discharge port 1007 at the bottom of the conical surface of the fine filter cartridge 1006 for easy cleaning; through two filtrations, the particles in the wild water source can be fully filtered out, and the water quality can be effectively improved;

[0030] See also Figure 5, an unpowered cleaning component 11 rotates inside the coarse filter cartridge 1001, and the unpowered cleaning component 11 includes a rotating shaft 1101, ribs 1102, an impeller 1103 and a scraper 1104. The rotating shaft 1101 rotates in the middle of the flow channel of the coarse filter cartridge 1001 through a hollow bracket, and the ribs 1102 are distributed in an array on the top of the rotating shaft 1101, and an annular impeller 1103 is fixed to one end of the ribs 1102 away from the rotating shaft 1101, and a scraper 1104 is coaxially connected to the bottom of the rotating shaft 1101, and the scraper 1104 is tightly fitted with the inner wall of the fine filter cartridge 1006;

[0031] The specific operation is as follows: in the process of raw water passing from the coarse filter cartridge 1001 to the fine filter cartridge 1006, the impeller 1103 drives the rotating shaft 1101 to rotate through the ribs 1102 under the impact of the water flow, and further drives the scraper 1104 at the bottom of the rotating shaft 1101 to rotate against the inner wall of the fine filter cartridge 1006 to prevent relatively fine particles from getting stuck in the mesh of the fine filter cartridge 1006 and causing blockage. The present application designs the unpowered cleaning component 11 as an unpowered structure that can rotate with the help of water flow impact, which can reduce costs while maintaining the mesh of the fine filter cartridge 1006. To ensure smooth flow and prevent the reduction of water output due to mesh blockage, the present application designs the filter body 10 as an integrated structure of a coarse filter cartridge 1001, an insert 1002 and a fine filter cartridge 1006 from top to bottom. When cleaning is required, the filter body 10 can be pulled out of the step groove 5 as a whole. On the one hand, the end cover 1205 at the bottom of the collection chamber 1204 is pulled out to clean the precipitated fine particles. On the other hand, the coarse particles precipitated in the bowl-shaped groove 1003 are reversed and poured out. The cleaning work of the filter body 10 can be quickly completed without disassembly and cleaning, which is convenient for use.

[0032] See also Figure 6 The consumable component 12 is nested outside the fine filter cartridge 1006, and the consumable component 12 includes a shell 1201 and a protective layer 1202. The shell 1201 is threadedly fixed to the outside of the thread block 1005, and the protective layer 1202 is arranged on the peripheral wall of the shell 1201, and the protective layer 1202 is made of polypropylene non-woven fabric. The consumable component 12 also includes a layer plate 1203, a collection chamber 1204 and an end cover 1205. The layer plate 1203 is horizontally fixed at the bottom of the shell 1201, and a through hole is arranged in the middle of the layer plate 1203 to be connected to the slag discharge port 1007. , a collecting chamber 1204 is provided at the bottom of the layer plate 1203, and an end cap 1205 is tightly fitted to the bottom opening of the collecting chamber 1204, the consumable component 12 also includes an activated carbon filter cotton 1206, an activated carbon filter cotton 1206 is placed above the layer plate 1203, and the activated carbon filter cotton 1206 is located within the structural gap between the housing 1201 and the fine filter cartridge 1006, the activated carbon filter cotton 1206 is a pleated multi-level pore activated carbon structure, and the activated carbon filter cotton 1206 is an activated carbon material having large-sized holes, mesopores and a certain proportion of micropores;

[0033] The specific operation is as follows: the consumable component 12 carries the activated carbon filter cotton 1206 which needs to be replaced regularly, so the present application designs the outer shell 1201 as a split structure which is threadedly fixed to the outside of the threaded block 1005, and the activated carbon filter cotton 1206 is arranged in the gap between the outer shell 1201 and the fine filter cartridge 1006. The activated carbon filter cotton 1206 of the present application is a pleated multi-stage pore activated carbon structure, which can effectively improve the filtering area and effect of the activated carbon filter cotton 1206. In addition, the raw water enters the cavity from the outside to the inside through the coarse filter cartridge 1001 for the first filtration, and then is discharged from the cavity from the inside to the outside through the fine filter cartridge 1006 for the second filtration. The channel design optimizes the downstream filtration design of the existing technology, reduces the raw water pressure so that it can flow evenly and slowly through the activated carbon filter cotton 1206 for sufficient filtration, and the protective layer 1202 arranged on the peripheral wall of the outer shell 1201 is made of polypropylene non-woven fabric, which further removes impurities in the water while eliminating the powder particle loss phenomenon of the activated carbon filter element in the existing technology, making the outlet water clearer, and the clean water flowing into the clean water storage area 8 below can be poured out from the water outlet 9 for drinking. Similarly, when cleaning is needed, the outer shell 1201 can be unscrewed from the outside of the threaded block 1005, and the new activated carbon filter cotton 1206 can be pulled out and replaced, which is also convenient and easy to use.

[0034] In summary, when using the multi-stage composite activated carbon drinking water filtration device, the water purifier 1 of the present application is divided into two parts, the upper and lower parts, by the partition 4. The raw water enters from the water inlet 7 located in the upper raw water storage area 6, and enters the coarse filter cartridge 1001 from the outside to the inside for a filtration. The trapped coarse particles will naturally settle in the bowl-shaped groove 1003 above the insert 1002 after the raw water flows out, which is convenient for cleaning. The coarse filter cartridge 1001 and the fine filter cartridge 1006 are longitudinally connected, so that the raw water is again discharged from the inside to the outside by the fine filter cartridge 1006 for secondary filtration. The trapped fine particles enter the collection chamber 1204 from the slag discharge port 1007 at the bottom of the cone of the fine filter cartridge 1006 for easy cleaning. Through two filtrations, the particles in the wild water source can be fully filtered out, effectively improving the water quality. In the process of raw water passing from the coarse filter cartridge 1001 to the fine filter cartridge 1006, the impeller 1103 drives the rotating shaft 1101 to rotate through the ribs 1102 under the impact of the water flow, and further drives the scraper 1104 at the bottom of the rotating shaft 1101 to rotate against the inner wall of the fine filter cartridge 1006 to prevent relatively fine particles from getting stuck in the mesh of the fine filter cartridge 1006 and causing blockage. The present application designs the unpowered cleaning component 11 as an unpowered structure that can rotate with the help of the impact of the water flow, which can keep the mesh of the fine filter cartridge 1006 unobstructed while reducing costs, and prevent the reduction of water output due to mesh blockage. The present application designs the filter body 10 as an integrated structure of the coarse filter cartridge 1001, the insert 1002 and the fine filter cartridge 1006 from top to bottom, and the filter can be cleaned when it needs to be cleaned. The main body 10 is pulled out as a whole from the step groove 5. On the one hand, the end cover 1205 at the bottom of the collection chamber 1204 is pulled out to clean the precipitated fine particles. On the other hand, the coarse particles precipitated in the bowl-shaped groove 1003 are reversed and poured out, so that the cleaning work of the filter main body 10 can be quickly completed without disassembly and cleaning, which is convenient for use. Since the consumable component 12 carries the activated carbon filter cotton 1206 that needs to be replaced regularly, the application designs the outer shell 1201 as a split structure that is threadedly fixed to the outside of the threaded block 1005, and the activated carbon filter cotton 1206 is arranged in the gap between the outer shell 1201 and the fine filter cartridge 1006. The activated carbon filter cotton 1206 of the application is a pleated multi-stage pore activated carbon structure, which can effectively increase the filtration area and In addition, the flow channel design in which the raw water enters the cavity from the outside to the inside through the coarse filter cartridge 1001 for primary filtration and then is discharged from the cavity from the inside to the outside through the fine filter cartridge 1006 for secondary filtration optimizes the downstream filtration design of the prior art, reduces the raw water pressure so that it can flow evenly and slowly through the activated carbon filter cotton 1206 for full filtration, and the protective layer 1202 arranged on the peripheral wall of the outer shell 1201 is made of polypropylene non-woven fabric, which further removes impurities in the water while eliminating the powder particle drop phenomenon of the activated carbon filter element in the prior art, making the outlet water clearer, and the clean water flowing into the clean water storage area 8 below can be poured out from the water outlet 9 for drinking. Similarly, when cleaning is required, the outer shell 1201 can be unscrewed from the outside of the threaded block 1005, and the new activated carbon filter cotton 1206 can be drawn out and replaced.It is also convenient, fast and easy to use.

[0035] The embodiments of the present invention are given for the purpose of illustration and description, and are not intended to be exhaustive or to limit the invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention and to enable those of ordinary skill in the art to understand the present invention and thereby design various implementations with various modifications suitable for specific uses.

Claims

1. Multi-stage composite activated carbon drinking water filter device, characterized in that: The invention comprises a water purification pot (1) and a filter body (10), wherein a partition (4) is fixed inside the water purification pot (1), and the partition (4) divides the inside of the water purification pot (1) into two parts, an upper part and an lower part, and a step groove (5) is provided in the middle of the partition (4), and the filter body (10) is embedded in the middle of the partition (4) through the step groove (5), and the filter body (10) comprises a coarse filter cartridge (1001), an insert block (1002), a bowl-shaped groove (1003), a sealing ring (1004), a threaded block (1005), a fine filter cartridge (1006) and a slag discharge port (1007). ), an insert (1002) is fixed to the peripheral wall of the coarse filter cartridge (1001), and the shape of the insert (1002) matches the size of the step groove (5), the top of the insert (1002) is provided with an inwardly recessed bowl-shaped groove (1003), and the bottom of the insert (1002) is provided with a sealing ring (1004), the bottom of the coarse filter cartridge (1001) is integrally fixed with a threaded block (1005), and a fine filter cartridge (1006) is fixed in the middle of the threaded block (1005), and a slag discharge port (1007) is provided at the end of the conical surface at the bottom of the fine filter cartridge (1006).

2. The multi-stage composite activated carbon drinking water filter device according to claim 1, characterized in that: The coarse filter cartridge (1001), the insert (1002) and the fine filter cartridge (1006) form an integrated structure from top to bottom, and the filter mesh number of the fine filter cartridge (1006) is twice that of the coarse filter cartridge (1001).

3. The multi-stage composite activated carbon drinking water filter device according to claim 1, characterized in that: Raw water enters the cavity from the outside to the inside through the coarse filter cartridge (1001) for primary filtration, and the coarse filter cartridge (1001) and the fine filter cartridge (1006) are longitudinally connected, and raw water is guided out of the cavity from the inside to the outside through the fine filter cartridge (1006) for secondary filtration.

4. The multi-stage composite activated carbon drinking water filter device according to claim 1, characterized in that: The water level viewing window (2) is provided on the side of the water purifying kettle (1), and a handle (3) is fixed to the rear end of the water purifying kettle (1).

5. The multi-stage composite activated carbon drinking water filter device according to claim 1, characterized in that: The upper portion of the partition (4) is divided into a raw water storage area (6), and a water inlet (7) is provided at the top of the raw water storage area (6).

6. The multi-stage composite activated carbon drinking water filter device according to claim 1, characterized in that: The lower part of the partition (4) is divided into a clean water storage area (8), and a water outlet (9) is provided on the side of the clean water storage area (8), and the clean water storage area (8) is connected to the raw water storage area (6) through a step groove (5).

7. The multi-stage composite activated carbon drinking water filter device according to claim 1, characterized in that: An unpowered cleaning component (11) rotates inside the coarse filter cartridge (1001), and the unpowered cleaning component (11) comprises a rotating shaft (1101), ribs (1102), an impeller (1103) and a scraper (1104); the rotating shaft (1101) rotates in the middle of the flow channel of the coarse filter cartridge (1001) through a hollow bracket, and the ribs (1102) are distributed in an array on the top of the rotating shaft (1101), and an annular impeller (1103) is fixed to one end of the ribs (1102) away from the rotating shaft (1101); the scraper (1104) is coaxially connected to the bottom of the rotating shaft (1101), and the scraper (1104) is tightly fitted to the inner wall of the fine filter cartridge (1006).

8. The multi-stage composite activated carbon drinking water filter device according to claim 1, characterized in that: A consumable component (12) is nested outside the fine filter cartridge (1006), and the consumable component (12) includes an outer shell (1201) and a protective layer (1202). The outer shell (1201) is threadedly fixed to the outside of the threaded block (1005), and the protective layer (1202) is provided on the peripheral wall of the outer shell (1201), and the protective layer (1202) is made of polypropylene non-woven fabric.

9. The multi-stage composite activated carbon drinking water filter device according to claim 8, characterized in that: The consumable component (12) further comprises a layer plate (1203), a collection chamber (1204) and an end cover (1205); the layer plate (1203) is horizontally fixed at the bottom of the shell (1201), and a through hole which is in communication with the slag discharge port (1007) is provided in the middle of the layer plate (1203); a collection chamber (1204) is opened at the bottom of the layer plate (1203), and the end cover (1205) is tightly fitted in the bottom opening of the collection chamber (1204).

10. The multi-stage composite activated carbon drinking water filter device according to claim 9, characterized in that: The consumable component (12) also includes activated carbon filter cotton (1206), the activated carbon filter cotton (1206) is placed above the layer plate (1203), and the activated carbon filter cotton (1206) is located in the structural gap between the outer shell (1201) and the fine filter cartridge (1006), the activated carbon filter cotton (1206) is a pleated multi-level pore activated carbon structure, and the activated carbon filter cotton (1206) is an activated carbon material having large-sized holes, medium pores and a certain proportion of micropores.

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