Filtering tank and filtering method for tap water

Abstract

The invention relates to the technical field of filtering tanks, and discloses a filtering tank and a filtering method for tap water, the filtering tank comprises a filtering tank body, the top of the filtering tank body is provided with a stirring motor, the driving end of the stirring motor is connected with a stirring rotating rod, and the exterior of the stirring rotating rod is provided with stirring blades; and a primary filtering mechanism is mounted in the filtering tank body. The middle of the funnel connecting pipe is separated through the cleaning water inlet pipe, then the cleaning water inlet pipe is connected with external cleaning water to input the cleaning water into the preliminary filtering bin, and the cleaning water in the preliminary filtering bin is gradually increased and can overflow to the position between the preliminary filtering bin and the filtering tank body; at the moment, clean water mixed with a large amount of impurities between a preliminary filtering bin on a preliminary filtering mounting plate and a filtering tank body can be discharged from the interior of the preliminary filtering bin through a clean water outlet, and the situation that too many impurities with large diameters are accumulated outside a preliminary filtering cylinder to affect the filtering effect of tap water can be effectively prevented.

Description

Technical Field

[0001] The invention relates to the technical field of filter tanks, in particular to a filter tank and a method for filtering tap water. Background Art

[0002] As a core component of the water treatment system, the tap water filter tank needs to have multi-level purification, protection and operation and maintenance functions to meet the water quality safety requirements in different scenarios.

[0003] Chinese patent CN104445685B discloses a multi-stage filtration water treatment system, including a water storage tank, a tap water inlet pipe connected to the water storage tank, the water storage tank is connected to a fully automatic sand filter device, a fully automatic carbon filter device, and a fully automatic ultrafiltration device, the fully automatic ultrafiltration device is connected to a purified water tank, and the purified water tank is connected to a water-using device. An electric heating device and a temperature sensor are provided inside the water storage tank. A constant temperature tank with a sandwich structure is connected between the water storage tank and the fully automatic sand filter device, and a hot water pipe is provided on the sandwich structure of the constant temperature tank. A booster pump is provided at the water inlet end of the fully automatic ultrafiltration device, and a flow meter is provided at the water outlet end of the fully automatic ultrafiltration device.

[0004] In the above patents and prior art, when the filter tank performs preliminary filtration on tap water, the water contains a large amount of impurities with larger diameters, and these impurities will quickly clog the filter mechanism during filtration, requiring the filter tank to be cleaned frequently, thereby seriously affecting the filtration efficiency of the tap water. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a filter tank and a method for filtering tap water.

[0006] A filter tank comprises a filter tank body, a stirring motor is installed on the top of the filter tank body, a stirring rotor is connected to the driving end of the stirring motor, a stirring blade is installed on the outside of the stirring rotor, a preliminary filtering mechanism is installed inside the filter tank body, a deep filtering mechanism is installed inside the filter tank body, a water inlet connecting pipe is connected to the outside of the filter tank body, a water outlet connecting pipe is connected to the bottom of the filter tank body, and a filter adjustment port is installed on the outside of the filter tank body;

[0007] The water inlet connecting pipe passes through the filter tank body and is connected to the top of the preliminary filtering mechanism, the water outlet connecting pipe passes through the bottom of the filter tank body and is connected to the bottom of the deep filtering mechanism, and the bottom of the stirring rotating rod passes through the top of the filter tank body and is connected to the stirring blade inside the preliminary filtering mechanism;

[0008] The water inlet connecting pipe can guide the unfiltered water outside the filter tank body to the interior of the preliminary filtering mechanism, and the preliminary filtering mechanism can perform preliminary filtration on the unfiltered water. The water after preliminary filtration by the preliminary filtering mechanism can flow downward to the interior of the deep filtration mechanism, and the depth filtration mechanism can perform deep filtration on the water after preliminary filtration. The water after deep filtration by the depth filtration mechanism can be discharged from the interior of the filter tank body along the water outlet connecting pipe. The preliminary filtration mechanism can be connected to the external water inlet to clean the interior of the preliminary filtration mechanism, and the depth filtration mechanism can be adjusted and replaced through the filter adjustment port on the outside of the filter tank body.

[0009] Preferably, the preliminary filtration mechanism includes a preliminary filtration mounting plate, which is fixedly mounted inside the filter tank body, a preliminary filtration bin is mounted on the top of the preliminary filtration mounting plate, a plurality of preliminary filter cartridges are mounted on the top of the preliminary filtration mounting plate, a connecting funnel is connected to the bottom of the preliminary filtration mounting plate, a funnel connecting pipe is connected to the bottom of the connecting funnel, a clean water inlet pipe is slidably mounted inside the funnel connecting pipe, a water diversion joint is connected to the bottom of the funnel connecting pipe, and a clean water outlet is mounted on the outside of the filter tank body.

[0010] Preferably, a plurality of the preliminary filter cartridges are annularly distributed inside the preliminary filter bin, the bottom of the stirring rotor passes through the top of the filter tank body and extends into the interior of the preliminary filter bin, the stirring blades installed outside the stirring rotor are located in the center of the preliminary filter bin, and an opening is provided at the connection between the preliminary filter mounting plate and the preliminary filter cartridges, and the interior of the preliminary filter bin is connected to the interior of the connecting funnel through the opening on the preliminary filter mounting plate;

[0011] The water inlet connecting pipe can guide the unfiltered water from the outside to the interior of the preliminary filtration bin, the preliminary filter cartridge can perform preliminary filtration on the unfiltered water, the stirring motor can drive the stirring blades to rotate inside the preliminary filtration bin through the stirring rod to stir the unfiltered water, and the water filtered by the preliminary filter cartridge enters the interior of the connecting funnel through the opening on the preliminary filtration mounting plate.

[0012] Preferably, the clean water inlet pipe passes through the side wall of the filter tank body and is slidably connected to the inside of the funnel connecting pipe. An opening is provided on the top of the clean water inlet pipe. The outside of the clean water inlet pipe fits into the inside of the funnel connecting pipe, and the outside of the clean water inlet pipe can be connected to the external water inlet.

[0013] When the clean water inlet pipe slides inside the funnel connecting pipe, it can separate the interior of the funnel connecting pipe. The clean water inlet pipe can transport the external clean water along the funnel connecting pipe to the interior of the preliminary filtration bin. When the stirring blade rotates inside the preliminary filtration bin, it can drive the water flow to rotate inside the preliminary filtration bin.

[0014] Preferably, the bottom of the funnel connecting pipe is connected to the deep filtration mechanism through a water diversion joint, the preliminary filtration mounting plate is connected to the interior of the filtration tank body to divide the inner part of the filtration tank body into upper and lower parts, the connection between the clean water outlet and the filtration tank body is located above the preliminary filtration mounting plate, and the interior of the filtration tank body is connected to the outside through the clean water outlet;

[0015] When the clean water inlet pipe inputs clean water into the preliminary filter bin, the water level inside the preliminary filter bin gradually increases. After the clean water gradually increases inside the preliminary filter bin, it can be discharged from the inside of the filter tank through the clean water outlet after overflowing.

[0016] Preferably, the depth filtration mechanism includes a depth filtration mounting platform, which is fixedly mounted inside the filtration tank body, a depth filtration turntable is rotatably mounted on the top of the depth filtration mounting platform, a depth filtration cartridge is mounted on the top of the depth filtration turntable, a transmission gear is connected to the bottom of the depth filtration turntable, an adjustment connecting ring is rotatably mounted on the bottom of the depth filtration mounting platform, an adjustment handle is mounted on the outside of the adjustment connecting ring, and a transmission gear is mounted on the inside of the adjustment connecting ring.

[0017] Preferably, the depth filter cartridge is rotatably mounted on the top of the depth filter mounting platform through a depth filter turntable, an opening is provided in the center of the depth filter mounting platform, the depth filter cartridge on the depth filter turntable near the center of the filter tank body can be connected to the water diversion joint, and the bottom of the depth filter cartridge on the depth filter turntable near the center of the filter tank body is connected to the opening on the depth filter mounting platform;

[0018] The funnel connecting pipe inputs the water that has been preliminarily filtered into the interior of the depth filter cartridge through the water diversion joint. The depth filter cartridge can further filter the water that has been preliminarily filtered. The tap water filtered by the depth filter cartridge is discharged from the interior of the filter tank body along the water outlet connecting pipe through the opening on the depth filter mounting platform.

[0019] Preferably, the rotating shaft of the depth filter turntable passes through the depth filter mounting platform and is connected to the transmission gear, and the outer portion of the transmission gear can be engaged with the transmission teeth inside the adjustment connection ring;

[0020] When the adjusting connecting ring rotates, it can drive multiple transmission gears to rotate synchronously through the transmission gears. When the multiple transmission gears rotate, they can drive multiple depth filter turntables and multiple depth filter cartridges to rotate.

[0021] Preferably, the transmission latch provided inside the adjusting connecting ring is a segmented structure, and each segment of the transmission latch on the adjusting connecting ring can drive the transmission gear to rotate a certain angle when in contact with the transmission gear;

[0022] When the filter adjustment port is opened, the adjustment connection ring can be rotated on the bottom of the depth filter installation platform by rotating the adjustment handle.

[0023] A method for filtering tap water uses the above-mentioned filter tank.

[0024] Compared with the prior art, the present invention provides a filter tank and a method for filtering tap water, which have the following beneficial effects:

[0025] 1. For this type of filter tank, when there are many impurities accumulated outside the preliminary filter cartridge, the clean water inlet pipe is pushed toward the center of the filter tank body, the middle part of the funnel connecting pipe is separated by the clean water inlet pipe, and then the clean water inlet pipe is connected to the external clean water, and clean water is input into the interior of the preliminary filter bin through the funnel connecting pipe. The clean water inside the preliminary filter bin gradually increases and the clean water can overflow between the preliminary filter bin and the filter tank body. At this time, the clean water mixed with a large amount of impurities between the preliminary filter bin and the filter tank body on the preliminary filter mounting plate can be discharged from the interior of the preliminary filter bin through the clean water outlet, which can effectively prevent the accumulation of impurities with larger diameters on the outside of the preliminary filter cartridge from affecting the filtering effect of tap water.

[0026] 2. This type of filter tank can open the filter adjustment port, and the adjustment connecting ring can be driven to rotate at the bottom of the depth filter mounting platform through the adjustment handle. When the adjustment connecting ring rotates, the transmission gear can be driven to rotate through the transmission gear. When the transmission gear rotates, the depth filter turntable can be driven to rotate synchronously. When the depth filter turntable rotates, different depth filter cartridges can be switched to connect with the water diversion joint, so that the depth filter cartridge can be quickly adjusted and replaced according to the specific situation during the working process, so as to adapt to the filtration needs of different water qualities. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic diagram of the three-dimensional structure of a filter tank of the present invention Figure 1 ;

[0028] Figure 2 A schematic diagram of the three-dimensional structure of a filter tank of the present invention Figure 2 ;

[0029] Figure 3 A schematic diagram of the three-dimensional structure of a filter tank of the present invention Figure 3 ;

[0030] Figure 4 Schematic diagram of the internal structure of a filter tank of the present invention Figure 1 ;

[0031] Figure 5 Schematic diagram of the internal structure of a filter tank of the present invention Figure 2 ;

[0032] Figure 6 This is a schematic diagram of the three-dimensional structure of a preliminary filtering mechanism of a filtering tank according to the present invention;

[0033] Figure 7 This is a schematic diagram of the three-dimensional structure of a clean water inlet pipe of a filter tank according to the present invention;

[0034] Figure 8 This is a schematic diagram of the three-dimensional structure of a primary filtration mounting plate of a filter tank according to the present invention;

[0035] Figure 9 A schematic diagram of the three-dimensional structure of a deep filtration mechanism of a filter tank of the present invention Figure 1 ;

[0036] Figure 10 A schematic diagram of the three-dimensional structure of a deep filtration mechanism of a filter tank of the present invention Figure 2 ;

[0037] Figure 11 A schematic diagram of the three-dimensional structure of the adjustment connection ring of a filter tank of the present invention Figure 1 ;

[0038] Figure 12 Schematic diagram of the internal structure of the adjustment connection ring of a filter tank of the present invention Figure 2 .

[0039] In the figure: 1. Filter tank; 2. Stirring motor; 3. Stirring rod; 4. Stirring blade; 5. Preliminary filtration mechanism; 51. Preliminary filtration mounting plate; 52. Preliminary filtration chamber; 53. Preliminary filter cartridge; 54. Connecting funnel; 55. Funnel connecting pipe; 56. Clean water inlet pipe; 57. Water diversion joint; 58. Clean water outlet; 6. Depth filtration mechanism; 61. Depth filtration mounting platform; 62. Depth filtration turntable; 63. Depth filtration cartridge; 64. Transmission gear; 65. Adjustment connecting ring; 66. Adjustment handle; 67. Transmission gear; 7. Water inlet connecting pipe; 8. Water outlet connecting pipe; 9. Filter adjustment port. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a filter tank and a method for filtering tap water.

[0042] Example 1:

[0043] See also Figure 1 - Figure 12 A filter tank comprises a filter tank body 1, a stirring motor 2 is installed on the top of the filter tank body 1, a stirring rotor 3 is connected to the driving end of the stirring motor 2, a stirring blade 4 is installed on the outside of the stirring rotor 3, a preliminary filtering mechanism 5 is installed inside the filter tank body 1, a deep filtering mechanism 6 is installed inside the filter tank body 1, a water inlet connecting pipe 7 is connected to the outside of the filter tank body 1, a water outlet connecting pipe 8 is connected to the bottom of the filter tank body 1, and a filter adjustment port 9 is installed on the outside of the filter tank body 1;

[0044] The water inlet connecting pipe 7 passes through the filter tank body 1 and is connected to the top of the preliminary filtering mechanism 5. The water outlet connecting pipe 8 passes through the bottom of the filter tank body 1 and is connected to the bottom of the deep filtering mechanism 6. The bottom of the stirring rotating rod 3 passes through the top of the filter tank body 1 and is connected to the stirring blade 4 inside the preliminary filtering mechanism 5.

[0045] The water inlet connecting pipe 7 can guide the unfiltered water outside the filter tank body 1 to the interior of the preliminary filtering mechanism 5, and the preliminary filtering mechanism 5 can perform preliminary filtration on the unfiltered water. The water after preliminary filtration by the preliminary filtering mechanism 5 can flow downward to the interior of the deep filtering mechanism 6, and the depth filtering mechanism 6 can perform deep filtration on the water after preliminary filtration. The water after deep filtration by the depth filtering mechanism 6 can be discharged from the interior of the filter tank body 1 along the water outlet connecting pipe 8. The preliminary filtering mechanism 5 can be connected to the external water inlet to clean the interior of the preliminary filtering mechanism 5, and the outside of the filter tank body 1 can adjust and replace the depth filtering mechanism 6 through the filter adjustment port 9.

[0046] During operation, unfiltered water can enter the interior of the preliminary filtering mechanism 5 through the water inlet connecting pipe 7, and the preliminary filtering mechanism 5 can perform preliminary filtration on the unfiltered water. When the preliminary filtering mechanism 5 performs preliminary filtration on the water, impurities with larger diameters in the water remain in the interior of the preliminary filtering mechanism 5, and the water that has been preliminarily filtered flows into the interior of the deep filtering mechanism 6, and the deep filtering mechanism 6 can perform deep filtration on the water. After the depth filtering mechanism 6 performs deep filtration on the water, the water flows out from the interior of the filter tank body 1 through the water outlet connecting pipe 8. When there are many impurities with larger diameters accumulated in the interior of the preliminary filtering mechanism 5, the exterior of the preliminary filtering mechanism 5 is connected to the external water inlet. After the preliminary filtering mechanism 5 is connected to the external water inlet, the backflow of the water in the preliminary filtering mechanism 5 can be achieved. At this time, the interior of the preliminary filtering mechanism 5 can be cleaned, and the cleaned sewage flows into the interior of the filter tank body 1 and then is discharged from the interior of the filter tank body 1 through the preliminary filtering mechanism 5. During operation, the depth filtering mechanism 6 can also be adjusted and replaced through the filter adjustment port 9 to further perform deep filtration on the water that has been preliminarily filtered.

[0047] Example 2:

[0048] The difference from the above embodiment is that, please refer to Figure 1 - Figure 12 The preliminary filtering mechanism 5 includes a preliminary filtering mounting plate 51, which is fixedly mounted inside the filtering tank body 1. A preliminary filtering bin 52 is mounted on the top of the preliminary filtering mounting plate 51. A plurality of preliminary filtering cartridges 53 are mounted on the top of the preliminary filtering mounting plate 51. A connecting funnel 54 is connected to the bottom of the preliminary filtering mounting plate 51. A funnel connecting pipe 55 is connected to the bottom of the connecting funnel 54. A clean water inlet pipe 56 is slidably mounted inside the funnel connecting pipe 55. A water diversion joint 57 is connected to the bottom of the funnel connecting pipe 55. A clean water outlet 58 is mounted on the outside of the filtering tank body 1.

[0049] A plurality of preliminary filter cartridges 53 are annularly distributed within the preliminary filter chamber 52. The bottom of the stirring rotor 3 passes through the top of the filter tank body 1 and extends into the interior of the preliminary filter chamber 52. The stirring blade 4 installed on the outside of the stirring rotor 3 is located in the center of the preliminary filter chamber 52. An opening is provided at the connection between the preliminary filter mounting plate 51 and the preliminary filter cartridges 53. The interior of the preliminary filter chamber 52 is connected to the interior of the connecting funnel 54 through the opening on the preliminary filter mounting plate 51.

[0050] The water inlet connecting pipe 7 can guide the unfiltered water from the outside into the interior of the preliminary filter chamber 52, the preliminary filter cartridge 53 can perform preliminary filtration on the unfiltered water, the stirring motor 2 can drive the stirring blade 4 to rotate inside the preliminary filter chamber 52 through the stirring rod 3 to stir the unfiltered water, and the water filtered by the preliminary filter cartridge 53 enters the interior of the connecting funnel 54 through the opening on the preliminary filter mounting plate 51.

[0051] The clean water inlet pipe 56 passes through the side wall of the filter tank body 1 and is slidably connected to the inside of the funnel connecting pipe 55. The top of the clean water inlet pipe 56 is provided with an opening, and the outside of the clean water inlet pipe 56 fits with the inside of the funnel connecting pipe 55. The outside of the clean water inlet pipe 56 can be connected to the external water inlet;

[0052] When the clean water inlet pipe 56 slides inside the funnel connecting pipe 55, it can separate the interior of the funnel connecting pipe 55. The clean water inlet pipe 56 can transport the external clean water along the funnel connecting pipe 55 to the interior of the preliminary filter chamber 52. When the stirring blade 4 rotates inside the preliminary filter chamber 52, it can drive the water flow to rotate inside the preliminary filter chamber 52.

[0053] The bottom of the funnel connecting pipe 55 is connected to the deep filtration mechanism 6 through the water diversion joint 57. The preliminary filtration mounting plate 51 is connected to the interior of the filtration tank body 1 to divide the interior of the filtration tank body 1 into two upper and lower parts. The connection between the clean water outlet 58 and the filtration tank body 1 is located above the preliminary filtration mounting plate 51. The interior of the filtration tank body 1 is connected to the outside through the clean water outlet 58.

[0054] When the clean water inlet pipe 56 inputs clean water into the preliminary filter chamber 52, the water level inside the preliminary filter chamber 52 gradually increases. After the clean water gradually increases inside the preliminary filter chamber 52 overflows, it can be discharged from the inside of the filter tank body 1 through the clean water outlet 58.

[0055] During operation, the water inlet connecting pipe 7 can guide the unfiltered water to the interior of the preliminary filter bin 52. After the unfiltered water enters the interior of the preliminary filter bin 52, the preliminary filter cartridge 53 can filter impurities with larger diameters in the unfiltered water. After filtration, the impurities with larger diameters remain on the outside of the preliminary filter cartridge 53. The preliminarily filtered water passes through the preliminary filter mounting plate 51, along the preliminary filter cartridge 53 and the funnel connecting pipe 55, and finally enters the interior of the deep filtration mechanism 6 through the water diversion joint 57. When the stirring rod 3 filters the unfiltered water, the stirring motor 2 can drive the stirring blade 4 to rotate inside the preliminary filter bin 52 through the stirring rod 3. The stirring blade 4 can stir the unfiltered water inside the preliminary filter bin 52 when rotating, so that the filtering effect of the preliminary filter cartridge 53 is more uniform. When there are many impurities accumulated outside the preliminary filter cartridge 53, the cleaning water inlet pipe 56 is pushed toward the center of the filter tank body 1. The middle part of the funnel connecting pipe 55 is separated, and then the clean water inlet pipe 56 is connected to the external clean water, and the clean water is input into the interior of the preliminary filter bin 52 through the funnel connecting pipe 55. When the clean water passes through the preliminary filter mounting plate 51, it can flow out from the interior of the preliminary filter cartridge 53 to the outside of the preliminary filter cartridge 53, and the clean water inside the preliminary filter bin 52 gradually increases and the clean water can overflow between the preliminary filter bin 52 and the filter tank body 1. At this time, the clean water mixed with a large amount of impurities between the preliminary filter bin 52 and the filter tank body 1 on the preliminary filter mounting plate 51 can be discharged from the interior of the preliminary filter bin 52 through the clean water outlet 58, and clean water is injected into the interior of the preliminary filter bin 52 through the clean water inlet pipe 56, and the impurities accumulated on the outside of the preliminary filter cartridge 53 are cleaned by the overflow of the clean water, which can effectively prevent the accumulation of impurities with larger diameters on the outside of the preliminary filter cartridge 53 from affecting the filtering effect of tap water.

[0056] Example 3:

[0057] The difference from the above embodiment is that, please refer to Figure 1 - Figure 12The depth filtering mechanism 6 includes a depth filtering mounting platform 61, which is fixedly mounted inside the filtering tank body 1. A depth filtering turntable 62 is rotatably mounted on the top of the depth filtering mounting platform 61, and a depth filtering cartridge 63 is mounted on the top of the depth filtering turntable 62. A transmission gear 64 is connected to the bottom of the depth filtering turntable 62. An adjusting connecting ring 65 is rotatably mounted on the bottom of the depth filtering mounting platform 61, an adjusting handle 66 is mounted on the outside of the adjusting connecting ring 65, and a transmission gear 67 is mounted on the inside of the adjusting connecting ring 65.

[0058] The depth filter cartridge 63 is rotatably mounted on the top of the depth filter mounting platform 61 via the depth filter turntable 62. An opening is provided in the center of the depth filter mounting platform 61. The depth filter cartridge 63 on the depth filter turntable 62 near the center of the filter tank body 1 can be connected to the water diversion joint 57. The bottom of the depth filter cartridge 63 on the depth filter turntable 62 near the center of the filter tank body 1 is connected to the opening on the depth filter mounting platform 61.

[0059] The funnel connecting pipe 55 inputs the water that has been preliminarily filtered into the interior of the depth filter cartridge 63 through the water diversion joint 57. The depth filter cartridge 63 can further filter the water that has been preliminarily filtered. The tap water filtered by the depth filter cartridge 63 is discharged from the interior of the filter tank body 1 along the water outlet connecting pipe 8 through the opening on the depth filter mounting platform 61.

[0060] The rotating shaft of the deep filter turntable 62 passes through the deep filter mounting platform 61 and is connected to the transmission gear 64. The outer portion of the transmission gear 64 can be meshed and connected with the transmission gear 67 inside the adjustment connection ring 65.

[0061] When the adjusting connecting ring 65 rotates, it can drive the multiple transmission gears 64 to rotate synchronously through the transmission gears 67. When the multiple transmission gears 64 rotate, they can drive the multiple depth filter turntables 62 and the multiple depth filter cartridges 63 to rotate.

[0062] The transmission latch 67 provided inside the adjusting connecting ring 65 is a segmented structure. When each segment of the transmission latch 67 on the adjusting connecting ring 65 contacts the transmission gear 64, it can drive the transmission gear 64 to rotate a certain angle.

[0063] When the filter adjustment port 9 is opened, the adjustment connection ring 65 can be rotated at the bottom of the depth filter mounting platform 61 by rotating the adjustment handle 66 .

[0064] During operation, the water that has been preliminarily filtered enters the interior of the depth filter cartridge 63 through the water diversion joint 57. After the preliminarily filtered water enters the interior of the depth filter cartridge 63, the depth filter cartridge 63 can further filter it. The filtered water flows out of the interior of the depth filter cartridge 63 and passes through the opening in the center of the depth filter mounting platform 61, and then is discharged from the interior of the filter tank 1 through the water outlet connecting pipe 8. During operation, it is necessary to adjust the depth filter cartridge 63 according to different water qualities. Specifically, the filter adjustment port 9 is opened. At this time, the adjustment handle 66 can be used to drive the adjustment connection ring 65 to rotate at the bottom of the depth filter mounting platform 61. When the adjustment connection ring 65 rotates, the transmission gear 64 can be driven to rotate through the transmission gear 67. When the transmission gear 64 rotates, the depth filter turntable 62 can be driven to rotate synchronously. When the depth filter turntable 62 rotates, different depth filter cartridges 63 can be switched to be connected to the water diversion joint 57, so that the depth filter cartridge 63 can be quickly adjusted and replaced according to different specific conditions during operation, thereby meeting the filtering requirements of different water qualities.

[0065] Example 4:

[0066] A method for filtering tap water, using a filter tank as described in Examples 1 to 3, comprises the following steps:

[0067] During operation, unfiltered water is first fed into the interior of the preliminary filtering mechanism 5 through the water inlet connection pipe 7;

[0068] The preliminary filtering mechanism 5 can perform preliminary filtering on the unfiltered water and guide the preliminary filtered water into the interior of the deep filtering mechanism 6;

[0069] The deep filtration mechanism 6 is capable of performing deep filtration on the preliminarily filtered water;

[0070] The deep filtered water can flow out from the interior of the filter tank 1 through the water outlet connecting pipe 8;

[0071] The preliminary filtering mechanism 5 can be connected to an external water inlet to clean the interior of the preliminary filtering mechanism 5 .

[0072] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A filter tank, comprising a filter tank body, characterized in that: A stirring motor is installed on the top of the filtering tank body, a stirring rotor is connected to the driving end of the stirring motor, a stirring blade is installed on the outside of the stirring rotor, a preliminary filtering mechanism is installed inside the filtering tank body, a deep filtering mechanism is installed inside the filtering tank body, a water inlet connecting pipe is connected to the outside of the filtering tank body, a water outlet connecting pipe is connected to the bottom of the filtering tank body, and a filter regulating port is installed on the outside of the filtering tank body; The water inlet connecting pipe passes through the filter tank body and is connected to the top of the preliminary filtering mechanism, the water outlet connecting pipe passes through the bottom of the filter tank body and is connected to the bottom of the deep filtering mechanism, and the bottom of the stirring rotating rod passes through the top of the filter tank body and is connected to the stirring blade inside the preliminary filtering mechanism; The water inlet connecting pipe can guide the unfiltered water outside the filter tank body to the interior of the preliminary filtering mechanism, and the preliminary filtering mechanism can perform preliminary filtration on the unfiltered water. The water after preliminary filtration by the preliminary filtering mechanism can flow downward to the interior of the deep filtration mechanism, and the depth filtration mechanism can perform deep filtration on the water after preliminary filtration. The water after deep filtration by the depth filtration mechanism can be discharged from the interior of the filter tank body along the water outlet connecting pipe. The preliminary filtration mechanism can be connected to the external water inlet to clean the interior of the preliminary filtration mechanism, and the depth filtration mechanism can be adjusted and replaced through the filter adjustment port on the outside of the filter tank body.

2. A filter tank according to claim 1, characterized in that: The preliminary filtration mechanism includes a preliminary filtration mounting plate, which is fixedly mounted inside the filter tank body, a preliminary filtration bin is mounted on the top of the preliminary filtration mounting plate, a plurality of preliminary filter cartridges are mounted on the top of the preliminary filtration mounting plate, a connecting funnel is connected to the bottom of the preliminary filtration mounting plate, a funnel connecting pipe is connected to the bottom of the connecting funnel, a clean water inlet pipe is slidably mounted inside the funnel connecting pipe, a water diversion joint is connected to the bottom of the funnel connecting pipe, and a clean water outlet is mounted on the outside of the filter tank body.

3. A filter tank according to claim 2, characterized in that: The plurality of preliminary filter cartridges are annularly distributed inside the preliminary filter bin, the bottom of the stirring rotor passes through the top of the filter tank body and extends into the interior of the preliminary filter bin, the stirring blade installed outside the stirring rotor is located in the center of the preliminary filter bin, and an opening is provided at the connection between the preliminary filter mounting plate and the preliminary filter cartridges, and the interior of the preliminary filter bin is connected to the interior of the connecting funnel through the opening on the preliminary filter mounting plate; The water inlet connecting pipe can guide the unfiltered water from the outside to the interior of the preliminary filtration bin, the preliminary filter cartridge can perform preliminary filtration on the unfiltered water, the stirring motor can drive the stirring blades to rotate inside the preliminary filtration bin through the stirring rod to stir the unfiltered water, and the water filtered by the preliminary filter cartridge enters the interior of the connecting funnel through the opening on the preliminary filtration mounting plate.

4. A filter tank according to claim 3, characterized in that: The clean water inlet pipe passes through the side wall of the filter tank body and is slidably connected to the inside of the funnel connecting pipe. The top of the clean water inlet pipe is provided with an opening. The outside of the clean water inlet pipe fits with the inside of the funnel connecting pipe. The outside of the clean water inlet pipe can be connected to the external water inlet. When the clean water inlet pipe slides inside the funnel connecting pipe, it can separate the interior of the funnel connecting pipe. The clean water inlet pipe can transport the external clean water along the funnel connecting pipe to the interior of the preliminary filtration bin. When the stirring blade rotates inside the preliminary filtration bin, it can drive the water flow to rotate inside the preliminary filtration bin.

5. A filter tank according to claim 4, characterized in that: The bottom of the funnel connecting pipe is connected to the deep filtration mechanism through a water diversion joint. The preliminary filtration mounting plate is connected to the interior of the filtration tank body to divide the inner part of the filtration tank body into two parts, the upper and lower parts. The connection between the clean water outlet and the filtration tank body is located above the preliminary filtration mounting plate. The interior of the filtration tank body is connected to the outside through the clean water outlet. When the clean water inlet pipe inputs clean water into the preliminary filter bin, the water level inside the preliminary filter bin gradually increases. After the clean water gradually increases inside the preliminary filter bin, it can be discharged from the inside of the filter tank through the clean water outlet after overflowing.

6. The filter tank according to claim 5, characterized in that: The depth filtration mechanism includes a depth filtration mounting platform, which is fixedly installed inside the filter tank body, a depth filtration turntable is rotatably installed on the top of the depth filtration mounting platform, a depth filtration cartridge is installed on the top of the depth filtration turntable, a transmission gear is connected to the bottom of the depth filtration turntable, an adjustment connecting ring is rotatably installed on the bottom of the depth filtration mounting platform, an adjustment handle is installed on the outside of the adjustment connecting ring, and a transmission gear is installed on the inside of the adjustment connecting ring.

7. The filter tank according to claim 6, characterized in that: The depth filter cartridge is rotatably mounted on the top of the depth filter mounting platform through the depth filter turntable. An opening is provided in the center of the depth filter mounting platform. The depth filter cartridge near the center of the filter tank on the depth filter turntable can be connected to the water diversion joint. The bottom of the depth filter cartridge near the center of the filter tank on the depth filter turntable is connected to the opening on the depth filter mounting platform. The funnel connecting pipe inputs the water that has been preliminarily filtered into the interior of the depth filter cartridge through the water diversion joint. The depth filter cartridge can further filter the water that has been preliminarily filtered. The tap water filtered by the depth filter cartridge is discharged from the interior of the filter tank body along the water outlet connecting pipe through the opening on the depth filter mounting platform.

8. The filter tank according to claim 7, characterized in that: The rotating shaft of the depth filter turntable passes through the depth filter mounting platform and is connected to the transmission gear, and the outer portion of the transmission gear can be engaged with the transmission gear inside the adjustment connection ring; When the adjusting connecting ring rotates, it can drive multiple transmission gears to rotate synchronously through the transmission gears. When the multiple transmission gears rotate, they can drive multiple depth filter turntables and multiple depth filter cartridges to rotate.

9. The filter tank according to claim 8, characterized in that: The transmission teeth arranged inside the adjusting connecting ring are of segmented structure. When each segment of the transmission teeth on the adjusting connecting ring contacts the transmission gear, it can drive the transmission gear to rotate a certain angle. When the filter adjustment port is opened, the adjustment connection ring can be rotated on the bottom of the depth filter installation platform by rotating the adjustment handle.

10. A method for filtering tap water, characterized in that: Using a filter tank as described in any one of claims 1 to 9, comprising the following steps: During operation, unfiltered water is first fed into the interior of the preliminary filtering mechanism through the water inlet connection pipe; The preliminary filtration mechanism can perform preliminary filtration on unfiltered water and guide the preliminary filtered water into the interior of the deep filtration mechanism; The deep filtration mechanism can deeply filter the preliminarily filtered water; The deep filtered water can flow out from the inside of the filter tank through the water outlet connection pipe; The preliminary filtering mechanism can be connected to an external water inlet to clean the interior of the preliminary filtering mechanism.

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