Filter cartridge assembly for an outdoor water purifier and method of operation thereof

Abstract

The application discloses a filter core assembly for an outdoor water purifier and a working method thereof. The filter core assembly for the outdoor water purifier comprises a shell, a valve hole is arranged in the shell, a valve core is rotationally connected in the valve hole, left and right filter cavities are symmetrically arranged in the shell at left and right sides of the valve hole, and left and right valve holes are arranged in the shell. A water inlet hole in communication with the valve hole is arranged on the outer side of the shell, a water outlet block is fixedly arranged on the rear side of the shell, a water outlet hole with a left end opening is arranged in the water outlet block, a left filter core mechanism is arranged in the left filter cavity, a right filter core mechanism is arranged in the right filter cavity, a notch is arranged on the outer side of the valve core, a square sliding rod is slidably connected in the valve core, left and right valve holes are arranged at the lower end of the shell, a left valve assembly is arranged at the left valve hole of the lower end of the shell, and a right valve assembly is arranged at the right valve hole of the lower end of the shell. The filter core assembly for the outdoor water purifier is not only simple in structure but also convenient to clean.

Description

Technical Field

[0001] This invention relates to the field of filter technology, and in particular to a filter assembly for an outdoor water purifier and its working method. Background Technology

[0002] Outdoor enthusiasts often rely on wild water sources for drinking water due to the inconvenience of carrying it themselves. These wild water sources contain a large amount of particulate matter and impurities, thus requiring water purifiers for treatment. Existing outdoor water purifiers use a pump to draw and pressurize wild water before passing it through a coarse filter to remove solid particles. The coarsely filtered water then enters a fine filter. However, with repeated use, the coarse filter cartridge becomes clogged. This necessitates removing the cartridge to clean the adsorbed particulate matter, cleaning it, and then reinstalling it. This entire process is cumbersome, time-consuming, and labor-intensive. Summary of the Invention

[0003] The purpose of this invention is to solve the problem of time-consuming and laborious cleaning of coarse filter elements in the prior art, and to propose a filter element assembly for outdoor water purifiers.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A filter cartridge assembly for an outdoor water purifier includes a housing. A valve hole is provided within the housing, and a valve core is rotatably connected within the valve hole. A left filter chamber and a right filter chamber, each with an upper opening, are symmetrically arranged on the left and right sides of the valve hole within the housing. A left valve port for connecting the left filter chamber and the valve hole, and a right valve port for connecting the valve hole and the right filter chamber, are provided within the housing. An inlet port communicating with the valve hole is provided on the outer side of the housing. An outlet block is sealed and fixedly provided on the rear side of the housing near the upper end. The outlet block has an outlet port with a left opening, which communicates with the left and right filter chambers. A left filter cartridge mechanism is provided within the left filter chamber. Water entering the left filter chamber through the left valve port passes through the left filter cartridge mechanism and enters the outlet port. The right filter chamber is equipped with a right filter element mechanism. Water entering the right filter chamber through the right valve port passes through the right filter element mechanism and enters the outlet. The outer side of the valve core is provided with a slot communicating with the inlet. A square slide rod is slidably connected along the axial direction inside the valve core. The lower end of the housing is provided with a left valve hole communicating with the bottom of the left filter chamber and a right valve hole communicating with the bottom of the right filter chamber. The lower end of the housing is provided with a left valve assembly at the left valve hole and a right valve assembly at the right valve hole. When the filter element assembly is working normally, the left valve assembly closes the left valve hole and the right valve assembly closes the right valve hole. When the left filter element assembly needs to be cleaned, the left valve assembly opens the lower end of the left valve hole. When the right filter element assembly needs to be cleaned, the right valve assembly opens the lower end of the right valve hole.

[0006] Furthermore, when the valve core is rotated to the left position, the slot is connected to the left filter chamber and disconnected from the right filter chamber. The lower end of the square slide rod is connected to the right valve assembly and disconnected from the left valve assembly. When the square slide rod is pressed down, the lower end of the square slide rod controls the right valve assembly to open the lower end of the right valve hole. When the valve core is rotated to the right position, the slot is connected to the right filter chamber and disconnected from the left filter chamber. The lower end of the square slide rod is connected to the left valve assembly and disconnected from the right valve assembly. When the square slide rod is pressed down, the lower end of the square slide rod controls the left valve assembly to open the lower end of the left valve hole.

[0007] Furthermore, the left filter element mechanism includes a lower left end plate and an upper left end plate. A left retaining ring is fixedly provided on the inner wall of the left filter cavity near its lower end. The lower left end plate is rotatably connected to the left filter cavity and abuts against the upper end of the left retaining ring. The upper left end plate is rotatably connected to the left filter cavity and is near the upper opening of the left filter cavity. A left filter screen is fixedly provided between the upper left end plate and the lower left end plate. The cross-section of the left filter screen is annular and coaxial with the left filter cavity. The inner side of the left filter cavity... A left inlet chamber is formed between the outer side of the left filter screen, the upper left end plate, and the lower left end plate, communicating with the left valve port and the left valve hole; a left outlet chamber is formed between the upper left end plate, the lower left end plate, and the inner side of the left filter screen, communicating with the outlet hole; a left end block is sealed and fixed on the upper left end plate inside the left filter chamber, a left convex tube is rotatably connected to the left end block on the upper left end plate, a left water chamber is provided inside the left end block communicating with the outlet hole, and the left convex tube connects the left water chamber and the left outlet chamber;

[0008] The lower left end plate has multiple left notches evenly spaced along its circumferential direction at its edge. The bottom of the left filter chamber has a left inverted cone surface below the left notch. The left inverted cone surface is used to guide particulate impurities falling from the left notch to the left valve hole.

[0009] Furthermore, the left valve assembly includes a left valve stem. A left and right sliding rod extending downwards are symmetrically fixed on both sides of the square sliding rod at the lower end of the housing. A baffle is fixed between the lower ends of the left and right sliding rods. The left valve stem is located within the left valve hole and is axially arranged along the left valve hole. The upper end of the left valve stem passes through the lower left end plate and extends into the left outlet chamber. The lower end of the left valve stem extends downwards out of the left valve hole and is fixedly connected to a left horizontal plate slidably on the left sliding rod. A left valve plug is provided on the outer side of the left valve stem. A left spring is sleeved on the left sliding rod. The left spring is located between the left horizontal plate and the baffle to force the left valve stem to drive the left valve plug upwards to seal the lower end of the left valve hole. A push plate is fixedly provided at the lower end of the square slide rod, and a radial protrusion is fixedly provided at the upper end of the square slide rod. A first spring is sleeved on the square slide rod between the upper end of the valve core and the radial protrusion. The first spring is used to force the square slide rod to drive the push plate to move upward and fit against the lower end of the housing. When the valve core is turned to the left position, the push plate moves away from the top of the left horizontal plate. When the valve core is turned to the right position, the push plate is located directly above the left horizontal plate. At this time, pressing the square slide rod downward causes the square slide rod to move the left horizontal plate downward. The left horizontal plate drives the left valve plug through the left valve rod to open the lower end of the left valve hole. When the square slide rod is released, the square slide rod returns to its original position upward under the action of the first spring, and the left horizontal plate returns to its original position upward under the action of the left first spring.

[0010] Furthermore, multiple left connecting rods are fixedly installed between the upper left end plate and the lower left end plate inside the left water outlet chamber. A left rotating plate is fixedly installed between the multiple left connecting rods. The upper end of the left valve rod is provided with a left transmission screw that extends upward and is threadedly connected to the left rotating plate. When the left valve rod drives the left transmission screw to move upward or downward, the left transmission screw drives the left rotating plate to rotate the left filter screen. The inner side wall of the left filter chamber is provided with a left sliding groove. Two left guide rods are fixedly installed in the left sliding groove along the radial direction of the left filter screen. A left scraper is slidably connected to the left guide rod in the left sliding groove. A left second spring is sleeved on the left guide rod to force the left scraper to abut against the outside of the left filter screen.

[0011] Furthermore, the right filter element mechanism includes a lower right end plate and an upper right end plate. A right retaining ring is fixedly provided on the inner wall of the right filter cavity near its lower end. The lower right end plate is rotatably connected within the right filter cavity and abuts against the upper end of the right retaining ring. The upper right end plate is rotatably connected within the right filter cavity and near its upper opening. A right filter screen is fixedly provided between the upper right end plate and the lower right end plate. The cross-section of the right filter screen is annular and coaxial with the right filter cavity. The inner side of the right filter cavity... A right inlet chamber is formed between the outer side of the right filter screen, the upper right end plate, and the lower right end plate, communicating with the right valve port and the right valve hole; a right outlet chamber is formed between the upper right end plate, the lower right end plate, and the inner side of the right filter screen, communicating with the outlet hole; a right end block is sealed and fixed on the upper right end plate inside the right filter chamber, a right convex tube is rotatably connected to the right end block on the upper right end plate, a right water chamber is provided inside the right end block communicating with the outlet hole, and the right convex tube connects the right water chamber and the right outlet chamber;

[0012] The lower right end plate has multiple right notches evenly spaced along its circumferential direction at its edge. The bottom of the right filter chamber has a right inverted conical surface below the right notch. The right inverted conical surface is used to guide particulate impurities falling from the right notch to the right valve hole.

[0013] Furthermore, the right valve assembly includes a right valve stem. A left and right sliding rod extending downwards are symmetrically fixed on both sides of the square sliding rod at the lower end of the housing. A baffle is fixed between the lower ends of the left and right sliding rods. The right valve stem is located within the right valve hole and is axially arranged along the right valve hole. The upper end of the right valve stem passes through the lower right end plate and extends into the right outlet chamber. The lower end of the right valve stem extends downwards out of the right valve hole and is fixedly connected to a right horizontal plate that slides on the right sliding rod. A right valve plug is provided on the outside of the right valve stem. A right spring is sleeved on the right sliding rod. The right spring is located between the right horizontal plate and the baffle to force the right valve stem to drive the right valve plug upwards to seal the lower end of the right valve hole. A push plate is fixedly provided at the lower end of the square slide rod, and a radial protrusion is fixedly provided at the upper end of the square slide rod. A first spring is sleeved on the square slide rod between the upper end of the valve core and the radial protrusion. The first spring is used to force the square slide rod to drive the push plate to move upward and fit against the lower end of the housing. When the valve core is turned to the right position, the push plate moves away from the top of the right horizontal plate. When the valve core is turned to the left position, the push plate is located directly above the right horizontal plate. At this time, pressing the square slide rod downward causes the square slide rod to drive the right horizontal plate to move downward. The right horizontal plate drives the right valve plug through the right valve rod to open the lower end of the right valve hole. When the square slide rod is released, the square slide rod returns to its original position upward under the action of the first spring, and the right horizontal plate returns to its original position upward under the action of the right first spring.

[0014] Furthermore, the right water outlet chamber is equipped with multiple right connecting rods fixed between the upper right end plate and the lower right end plate, and a right rotating plate is fixed between the multiple right connecting rods. The upper end of the right valve rod is equipped with a right transmission screw that extends upward and is threadedly connected to the right rotating plate. When the right valve rod drives the right transmission screw to move upward or downward, the right transmission screw drives the right rotating plate to rotate the right filter screen. The inner wall of the right filter chamber is equipped with a right sliding groove. Two right guide rods are fixedly installed in the right sliding groove along the radial direction of the right filter screen. A right scraper is slidably connected in the right sliding groove and slidably connected to the right guide rods. A right second spring is sleeved on the right guide rod to force the right scraper to abut against the outside of the right filter screen.

[0015] The present invention also provides a method for operating the filter cartridge assembly for the above-mentioned outdoor water purifier, comprising the following steps:

[0016] Pressurized water enters the slot through the inlet hole. When the valve core is turned to the left position, the pressurized water enters the left filter chamber through the left valve port. After passing through the left filter element mechanism, the pressurized water is discharged through the outlet hole. When the valve core is turned to the right position, the pressurized water enters the right filter chamber through the right valve port. After passing through the right filter element mechanism, the pressurized water is discharged through the outlet hole. When the valve core is turned away from both the left and right positions, the pressurized water splits into two paths: one path enters the left filter chamber through the left valve port, and the other path enters the right filter chamber through the right valve port. When the left filter element... When the mechanism is blocked, turn the valve core to the right position and press down the square slide rod. The lower end of the square slide rod controls the left valve assembly to open the lower end of the left valve hole. At this time, the pressurized water in the outlet pipe backwashes the left filter element mechanism, and the flushing water is discharged downward through the left valve hole. When the right filter element mechanism is blocked, turn the valve core to the left position and press down the square slide rod. The lower end of the square slide rod controls the right valve assembly to open the lower end of the right valve hole. At this time, the pressurized water in the outlet pipe backwashes the right filter element mechanism, and the flushing water is discharged downward through the right valve hole.

[0017] Compared with the prior art, the present invention provides a filter cartridge assembly for outdoor water purifiers, which has the following beneficial effects:

[0018] 1. By setting up two filter mechanisms (left and right filter mechanisms), the other filter mechanism can be put into use while one filter mechanism is being cleaned, thus effectively ensuring that the outdoor water purifier can work continuously; in addition, through the cooperation of the slot with the left and right valve ports, when rotating the valve core to switch between the left and right filter mechanisms, the pressurized water in the inlet can always be filtered and discharged from the outlet.

[0019] 2. When the left filter element mechanism needs cleaning, turn the valve core to the right position and press down the square slide rod. The square slide rod drives the left horizontal plate to move downward through the push plate. The left horizontal plate drives the left valve rod to move downward. When the left valve rod moves downward, it drives the left valve plug to open the lower end of the left valve hole. At this time, the pressurized water in the outlet hole enters the left outlet chamber through the left water chamber and the left convex tube. Under the action of water pressure, it flows out from the inside to the outside of the left filter screen, thereby flushing down the solid particles adsorbed on the outside of the left filter screen and flowing down through the left notch and the left valve hole. On the other hand, when the left valve rod moves downward, it drives the left transmission screw to move downward. The left transmission screw drives the left filter screen to rotate through the left rotating plate. When the left filter screen rotates, the left scraper scrapes off the solid particles adsorbed on the outside of the left filter screen.

[0020] 3. When the right filter element mechanism needs cleaning, turn the valve core to the left position and press down the square slide rod. The square slide rod drives the right horizontal plate to move downward through the push plate. The right horizontal plate drives the right valve rod to move downward. When the right valve rod moves downward, it drives the right valve plug to open the lower end of the right valve hole. At this time, the pressurized water in the outlet hole enters the right outlet chamber through the right water chamber and the right convex tube. Under the action of water pressure, it flows out from the inside to the outside of the right filter screen, thereby flushing down the solid particles adsorbed on the outside of the right filter screen and flowing down through the right notch and the right valve hole. On the other hand, when the right valve rod moves downward, it drives the right transmission screw to move downward. The right transmission screw drives the right filter screen to rotate through the right rotating plate. When the right filter screen rotates, the right scraper scrapes off the solid particles adsorbed on the outside of the right filter screen. Attached Figure Description

[0021] Figure 1 This is a front sectional view of the valve core of the present invention when it is in the left position;

[0022] Figure 2 This is a front sectional view of the valve core of the present invention when it is in the right position;

[0023] Figure 3 This is a front sectional view of the valve core of the present invention when it is in the left and right positions;

[0024] Figure 4 This is a front sectional view of the square slide rod after it has moved downwards when the valve core of the present invention is in the right position;

[0025] Figure 5 for Figure 1 Cross-sectional view along the AA direction;

[0026] Figure 6 for Figure 1 Cross-sectional view along the BB direction;

[0027] Figure 7 for Figure 1 Cross-sectional view along the CC direction;

[0028] Figure 8 for Figure 2 Cross-sectional view along the DD direction;

[0029] Figure 9 for Figure 3 Cross-sectional view along the EE direction. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0032] Reference Figures 1-9A filter cartridge assembly for an outdoor water purifier includes a housing 1. The housing 1 has a valve hole 1a, and a valve core 2 is rotatably connected within the valve hole 1a. A left filter chamber 1b and a right filter chamber 1c, both with upper openings, are symmetrically arranged on the left and right sides of the valve hole 1a within the housing 1. The housing 1 also has a left valve port 1d for connecting the left filter chamber 1b and the valve hole 1a, and a right valve port 1e for connecting the valve hole 1a and the right filter chamber 1c. An inlet hole 1f communicating with the valve hole 1a is provided on the outer side of the housing 1. A water outlet block 3 is sealed and fixed near the upper end on the rear side of the housing 1. The water outlet block 3 has an outlet hole 3a with a left opening, communicating with the left filter chamber 1b and the right filter chamber 1c. A left filter element mechanism is provided within the left filter chamber 1b. Water entering the left filter chamber 1b through the left valve port 1d passes through the left filter element mechanism and enters the outlet. The water outlet 3a is located inside the water hole; the right filter chamber 1c is equipped with a right filter element mechanism, and the water entering the right filter chamber 1c through the right valve port 1e enters the water outlet 3a through the right filter element mechanism; the outer side of the valve core 2 is provided with a groove 2a communicating with the water inlet 1f; a square slide rod 4 is slidably connected in the axial direction inside the valve core 2; the lower end of the housing 1 is provided with a left valve hole 1g communicating with the bottom of the left filter chamber 1b and a right valve hole 1h communicating with the bottom of the right filter chamber 1c; the lower end of the housing 1 is provided with a left valve assembly at the left valve hole 1g and a right valve assembly at the right valve hole 1h. When the filter element assembly is working normally, the left valve assembly closes the left valve hole 1g and the right valve assembly closes the right valve hole 1h. When the left filter element assembly needs to be cleaned, the left valve assembly opens the lower end of the left valve hole 1g, and when the right filter element assembly needs to be cleaned, the right valve assembly opens the lower end of the right valve hole 1h. When valve core 2 is rotated to the left position, slot 2a is connected to the left filter chamber 1b and disconnected from the right filter chamber 1c. The lower end of square slide rod 4 is connected to the right valve assembly and disconnected from the left valve assembly. When square slide rod 4 is pressed down, the lower end of square slide rod 4 controls the right valve assembly to open the lower end of the right valve hole 1h. When valve core 2 is rotated to the right position, slot 2a is connected to the right filter chamber 1c and disconnected from the left filter chamber 1b. The lower end of square slide rod 4 is connected to the left valve assembly and disconnected from the right valve assembly. When square slide rod 4 is pressed down, the lower end of square slide rod 4 controls the left valve assembly to open the lower end of the left valve hole 1g.

[0033] In this embodiment, the left filter mechanism includes a lower left end plate 5a and an upper left end plate 6a. A left retaining ring 7a is fixedly provided on the inner wall of the left filter cavity 1b near its lower end. The lower left end plate 5a is rotatably connected to the left filter cavity 1b and abuts against the upper end of the left retaining ring 7a. The upper left end plate 6a is rotatably connected to the left filter cavity 1b and is near the upper opening of the left filter cavity 1b. A left filter screen 8a is fixedly provided between the upper left end plate 6a and the lower left end plate 5a. The cross-section of the left filter screen 8a is annular and it is coaxial with the left filter cavity 1b. A left inlet chamber 1b1 is formed between the inner side of the left filter cavity 1b, the outer side of the left filter screen 8a, the upper left end plate 6a, and the lower left end plate 5a, communicating with the left valve port 1d and the left valve hole 1g. The upper left end plate 6a, the lower left end plate 5a, the left filter screen 8a, the upper left end plate 6a, and the lower left end plate 5a. A left water outlet cavity 1b2 is formed between the inner side of the lower end plate 5a and the left filter screen 8a, communicating with the water outlet hole 3a; a left end block 9a is sealed and fixed on the upper left end plate 6a inside the left filter cavity 1b; a left convex tube 6a1 is rotatably connected to the left end block 9a on the upper left end plate 6a; a left water cavity 9a1 communicating with the water outlet hole 3a is provided inside the left end block 9a; the left convex tube 6a1 connects the left water cavity 9a1 and the left water outlet cavity 1b2; a plurality of left notches 5a1 are evenly spaced along the circumferential direction at the edge of the lower left end plate 5a; a left inverted conical surface 1b3 is provided at the bottom of the left filter cavity 1b below the left notches 5a1; the left inverted conical surface 1b3 is used to guide the particulate impurities falling from the left notches 5a1 to the left valve hole 1g.

[0034] The right filter element mechanism includes a lower right end plate 5b and an upper right end plate 6b. A right retaining ring 7b is fixedly provided on the inner wall of the right filter cavity 1c near its lower end. The lower right end plate 5b is rotatably connected to the right filter cavity 1c and abuts against the upper end of the right retaining ring 7b. The upper right end plate 6b is rotatably connected to the right filter cavity 1c and is near the upper opening of the right filter cavity 1c. A right filter screen 8b is fixedly provided between the upper right end plate 6b and the lower right end plate 5b. The cross-section of the right filter screen 8b is annular and it is coaxial with the right filter cavity 1c. A right inlet chamber 1c1 is formed between the inner side of the right filter cavity 1c, the outer side of the right filter screen 8b, the upper right end plate 6b, and the lower right end plate 5b, communicating with the right valve port 1e and the right valve hole 1h. The upper right end plate 6b and the lower right end plate... A right water outlet cavity 1c2 is formed between the inner side of the right filter screen 8b and the right filter screen 8b, which communicates with the water outlet hole 3a; a right end block 9b is sealed and fixed on the upper right end plate 6b inside the right filter cavity 1c; a right convex tube 6b1 is rotatably connected to the right end block 9b on the upper right end plate 6b; a right water cavity 9b1 communicating with the water outlet hole 3a is provided inside the right end block 9b; the right convex tube 6b1 connects the right water cavity 9b1 and the right water outlet cavity 1c2; a plurality of right notches 5b1 are evenly spaced along the circumferential direction at the edge of the lower right end plate 5b; a right inverted conical surface 1c3 is provided at the bottom of the right filter cavity 1c below the right notches 5b1; the right inverted conical surface 1c3 is used to guide the particulate impurities falling from the right notches 5b1 to the right valve hole 1h.

[0035] In this embodiment, the lower end of the housing 1 is symmetrically provided with a downwardly extending left slide rod 10a and a right slide rod 10b on the left and right sides of the square slide rod 4. A baffle 11 is fixed between the lower ends of the left slide rod 10a and the right slide rod 10b. A push plate 12 is fixed at the lower end of the square slide rod 4. A radial protrusion 4a is fixed at the upper end of the square slide rod 4. A first spring 13 is sleeved on the square slide rod 4 between the upper end of the valve core 2 and the radial protrusion 4a. The first spring 13 is used to force the square slide rod 4 to drive the push plate 12 to move upward and fit against the lower end of the housing 1.

[0036] The left valve assembly includes a left valve stem 14a, which is located inside the left valve hole 1g and is arranged along the axial direction of the left valve hole 1g. The upper end of the left valve stem 14a passes through the lower left end plate 5a and extends into the left outlet chamber 1b2. The lower end of the left valve stem 14a extends downward out of the left valve hole 1g and is fixedly provided with a left horizontal plate 15a that is slidably connected to the left slide rod 10a. A left valve plug 14a1 is provided on the outside of the left valve stem 14a. A left spring 16a is sleeved on the left slide rod 10a. The left spring 16a is located between the left horizontal plate 15a and the baffle 11 to force the left valve stem 14a to drive the left valve plug 14a1 upward to seal the lower end of the left valve hole 1g. The right valve assembly includes a right valve stem 14b; the right valve stem 14b is located inside the right valve hole 1h and is arranged along the axial direction of the right valve hole 1h. The upper end of the right valve stem 14b passes through the lower right end plate 5b and extends into the right outlet chamber 1c2. The lower end of the right valve stem 14b extends downward out of the right valve hole 1h and is fixedly provided with a right horizontal plate 15b that is slidably connected to the right slide rod 10b. A right valve plug 14b1 is provided on the outside of the right valve stem 14b. A right spring 16b is sleeved on the right slide rod 10b. The right spring 16b is located between the right horizontal plate 15b and the baffle 11 to force the right valve stem 14b to drive the right valve plug 14b1 upward to seal the lower end of the right valve hole 1h.

[0037] When the valve core 2 is rotated to the left position, the push plate 12 moves away from the top of the left horizontal plate 15a and moves to the top of the right horizontal plate 15b. At this time, the square slide rod 4 is pressed down, and the square slide rod 4 drives the right horizontal plate 15b to move downward. The right horizontal plate 15b drives the right valve plug 14b1 through the right valve rod 14b to open the lower end of the right valve hole 1h. When the square slide rod 4 is released, the square slide rod 4 returns to its original position upward under the action of the first spring 13, and the right horizontal plate 15b returns to its original position upward under the action of the right first spring 16b. When the valve core 2 is rotated to the right position, the push plate 12 moves away from the top of the right horizontal plate 15b and moves to the top of the left horizontal plate 15a. At this time, the square slide rod 4 is pressed down, and the square slide rod 4 drives the left horizontal plate 15a to move downward. The left horizontal plate 15a drives the left valve plug 14a1 through the left valve rod 14a to open the lower end of the left valve hole 1g. When the square slide rod 4 is released, the square slide rod 4 returns to its original position upward under the action of the first spring 13, and the left horizontal plate 15a returns to its original position upward under the action of the left first spring 16a.

[0038] In this embodiment, a plurality of left connecting rods 17a are fixedly arranged between the upper left end plate 6a and the lower left end plate 5a in the left water outlet cavity 1b2. A left rotating plate 18a is fixedly arranged between the plurality of left connecting rods 17a. The upper end of the left valve rod 14a is provided with a left transmission screw 14a2 that extends upward and is threadedly connected to the left rotating plate 18a. When the left valve rod 14a drives the left transmission screw 14a2 to move upward or downward, the left transmission screw 14a2 drives the left rotating plate 18a to drive the left filter screen 8a to rotate. The inner sidewall of the left filter cavity 1b is provided with a left sliding groove 1b4. Two left guide rods 19a are fixedly arranged in the left sliding groove 1b4 along the radial direction of the left filter screen 8a. A left scraper 20a is slidably connected in the left sliding groove 1b4 and slidably connected to the left guide rods 19a. A left second spring 21a is sleeved on the left guide rod 19a to force the left scraper 20a to abut against the outside of the left filter screen 8a. Multiple right connecting rods 17b are fixedly arranged between the upper right end plate 6b and the lower right end plate 5b in the right water outlet cavity 1c2. A right rotating plate 18b is fixedly arranged between the multiple right connecting rods 17b. The upper end of the right valve rod 14b is provided with a right transmission screw 14b2 that extends upward and is threadedly connected to the right rotating plate 18b. When the right valve rod 14b drives the right transmission screw 14b2 to move upward or downward, the right transmission screw 14b2 drives the right rotating plate 18b to rotate the right filter screen 8b. The inner side wall of the right filter cavity 1c is provided with a right sliding groove 1c4. Two right guide rods 19b are fixedly arranged radially along the right filter screen 8b in the right sliding groove 1c4. A right scraper 20b is slidably connected to the right guide rods 19b in the right sliding groove 1c4. A right second spring 21b is sleeved on the right guide rod 19b to force the right scraper 20b to abut against the outside of the right filter screen 8b.

[0039] This embodiment also provides a method for operating the filter cartridge assembly for the above-mentioned outdoor water purifier, including the following steps:

[0040] Pressurized water enters slot 2a through inlet hole 1f. When valve core 2 is turned to the left, pressurized water enters the left inlet chamber 1b1 within the left filter chamber 1b through left valve port 1d. The pressurized water in the left inlet chamber 1b1, under water pressure, passes the outside of the left filter screen 8a and enters the left outlet chamber 1b2. It then passes through the left convex pipe 6a1 and the left water chamber 9a1 before entering the outlet hole 3a. When valve core 2 is turned to the right, pressurized water enters through right valve port 1e. The pressurized water entering the right inlet chamber 1c1 inside the right filter chamber 1c is subjected to water pressure and passes through the outside of the right filter screen 8b before entering the right outlet chamber 1c2. After passing through the right convex pipe 6b1 and the right water chamber 9b1, it enters the outlet hole 3a. When the valve core 2 is turned to leave the left and right positions, the pressurized water is divided into two paths. One path passes through the left valve port 1d and enters the left filter chamber 1b, and the other path passes through the right valve port 1e and enters the right filter chamber 1c.

[0041] When the left filter element mechanism is clogged, turn valve core 2 to the right position, and push plate 12 moves to directly above the left horizontal plate 15a. At this time, press down on the square slide rod 4. The square slide rod 4 drives the left horizontal plate 15a to move downward. The left horizontal plate 15a drives the left valve rod 14a to move downward. When the left valve rod 14a moves downward, it drives the left valve plug 14a1 to open the lower end of the left valve hole 1g. At this time, the pressurized water that has entered the outlet hole 3a through the right filter element mechanism enters the left water chamber 9a1 and the left convex tube 6a1 and enters the left... Under the action of water pressure, water flows out from the inside to the outside of the left filter screen 8a in the outlet chamber 1b2, thereby flushing down the solid particles adsorbed on the outside of the left filter screen 8a and flowing downward through the left notch 5a1 and the left valve hole 1g. On the other hand, when the left valve rod 14a moves downward, it drives the left transmission screw 14a2 to move downward. The left transmission screw 14a2 drives the left filter screen 8a to rotate through the left rotating plate 18a. When the left filter screen 8a rotates, the left scraper 20a scrapes off the solid particles adsorbed on the outside of the left filter screen 8a. After pressing the square slide bar 4 to its lower position, release it. The square slide bar 4 returns to its original position under the action of the first spring 13. The left horizontal plate 15a moves upward and returns to its original position under the action of the left spring 16a. The left horizontal plate 15a drives the left valve rod 14a to move upward. The left valve rod 14a, on the one hand, drives the left valve plug 14a1 to close the lower end of the left valve hole 1g, and on the other hand, drives the left filter screen 8a to rotate in the opposite direction again through the left transmission screw 14a2. Under the action of the left scraper 20a, the outer side of the left filter screen 8a is cleaned again. Pressing the square slide bar 4 several times can achieve multiple cleanings of the left filter screen 8a.

[0042] Similarly, when the right filter element mechanism is clogged, the valve core 2 is turned to the left position, and the push plate 12 moves to the top of the right and horizontal plates. At this time, the square slide rod 4 is pressed down, and the square slide rod 4 drives the right horizontal plate 15b to move downward. The right horizontal plate 15b drives the right valve rod 14b to move downward. When the right valve rod 14b moves downward, it drives the right valve plug 14b1 to open the lower end of the right valve hole 1h. At this time, the pressurized water that has entered the outlet hole 3a through the left filter element mechanism enters the right water chamber 9b1 and the right convex pipe 6b1 and enters the right... Under the action of water pressure, water flows out from the inside to the outside of the right filter screen 8b in the outlet chamber 1c2, thereby flushing down the solid particles adsorbed on the outside of the right filter screen 8b and flowing downward through the right notch 5b1 and the right valve hole 1h. On the other hand, when the right valve rod 14b moves downward, it drives the right transmission screw 14b2 to move downward. The right transmission screw 14b2 drives the right filter screen 8b to rotate through the right rotating plate 18b. When the right filter screen 8b rotates, the right scraper 20b scrapes off the solid particles adsorbed on the outside of the right filter screen 8b. After pressing the square slide bar 4 to its lower position, release it. The square slide bar 4 returns to its original position under the action of the first spring 13. The right horizontal plate 15b returns to its original position under the action of the right spring 16b. The right horizontal plate 15b drives the right valve rod 14b to move upward. The right valve rod 14b drives the right valve plug 14b1 to close the lower end of the right valve hole 1h. On the other hand, it drives the right filter screen 8b to rotate in the opposite direction again through the right transmission screw 14b2. Under the action of the right scraper 20b, the outside of the right filter screen 8b is cleaned again. Pressing the square slide bar 4 several times can achieve multiple cleanings of the right filter screen 8b.

[0043] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A filter cartridge assembly for an outdoor water purifier, comprising a housing, characterized in that, The housing has a valve hole, and a valve core is rotatably connected inside the valve hole. A left filter chamber and a right filter chamber with upper openings are symmetrically arranged on the left and right sides of the valve hole within the housing. The housing has a left valve port for connecting the left filter chamber and the valve hole, and a right valve port for connecting the valve hole and the right filter chamber. An inlet port communicating with the valve hole is provided on the outer side of the housing. A water outlet block is sealed and fixed near the upper end on the rear side of the housing. The water outlet block has a water outlet port with a left opening, which communicates with both the left and right filter chambers. A left filter element mechanism is provided in the left filter chamber. Water entering the left filter chamber through the left valve port passes through the left filter element mechanism and enters the water outlet port. A right filter element is provided in the right filter chamber. The mechanism allows water entering the right filter chamber through the right valve port to pass through the right filter element mechanism and enter the outlet port. The outer side of the valve element has a slot communicating with the inlet port. A square slide rod is slidably connected axially inside the valve element. The lower end of the housing has a left valve port communicating with the bottom of the left filter chamber and a right valve port communicating with the bottom of the right filter chamber. The lower end of the housing has a left valve assembly at the left valve port and a right valve assembly at the right valve port. When the filter element assembly is working normally, the left valve assembly closes the left valve port, and the right valve assembly closes the right valve port. When the left filter element assembly needs cleaning, the left valve assembly opens the lower end of the left valve port; when the right filter element assembly needs cleaning, the right valve assembly opens the lower end of the right valve port. When the valve core is rotated to the left position, the slot is connected to the left filter chamber and disconnected from the right filter chamber. The lower end of the square slide rod is connected to the right valve assembly and disconnected from the left valve assembly. When the square slide rod is pressed down, the lower end of the square slide rod controls the right valve assembly to open the lower end of the right valve hole. When the valve core is rotated to the right position, the slot is connected to the right filter chamber and disconnected from the left filter chamber. The lower end of the square slide rod is connected to the left valve assembly and disconnected from the right valve assembly. When the square slide rod is pressed down, the lower end of the square slide rod controls the left valve assembly to open the lower end of the left valve hole. The left filter element mechanism includes a lower left end plate and an upper left end plate. A left retaining ring is fixedly provided on the inner wall of the left filter cavity near its lower end. The lower left end plate is rotatably connected to the left filter cavity and abuts against the upper end of the left retaining ring. The upper left end plate is rotatably connected to the left filter cavity and is near the upper opening of the left filter cavity. A left filter screen is fixedly provided between the upper left end plate and the lower left end plate. The cross-section of the left filter screen is annular and it is coaxial with the left filter cavity. The inner side of the left filter cavity and the left filter screen... A left inlet chamber is formed between the outer side, the upper left end plate, and the lower left end plate, communicating with the left valve port and the left valve hole; a left outlet chamber is formed between the upper left end plate, the lower left end plate, and the inner side of the left filter screen, communicating with the outlet hole; a left end block is sealed and fixed on the upper left end plate inside the left filter chamber, a left convex tube is rotatably connected to the left end block on the upper left end plate, a left water chamber is provided inside the left end block communicating with the outlet hole, and the left convex tube connects the left water chamber and the left outlet chamber; The lower left end plate has multiple left notches evenly spaced along the circumferential direction at its edge. The bottom of the left filter chamber has a left inverted cone surface below the left notches. The left inverted cone surface is used to guide particulate impurities falling from the left notches to the left valve hole. The left valve assembly includes a left valve stem. A left and right sliding rod extending downwards are symmetrically fixed on both sides of the lower end of the housing on the left and right sides of the square sliding rod. A baffle is fixed between the lower ends of the left and right sliding rods. The left valve stem is located inside the left valve hole and is arranged axially along the left valve hole. The upper end of the left valve stem passes through the lower left end plate and extends into the left water outlet chamber. The lower end of the left valve stem extends downwards out of the left valve hole and is fixedly connected to a left horizontal plate that slides on the left sliding rod. A left valve plug is provided on the outside of the left valve stem. A left spring is sleeved on the left sliding rod. The left spring is located between the left horizontal plate and the baffle to force the left valve stem to drive the left valve plug upwards to seal the lower end of the left valve hole. The square... A push plate is fixedly provided at the lower end of the slide rod, and a radial protrusion is fixedly provided at the upper end of the square slide rod. A first spring is sleeved on the square slide rod between the upper end of the valve core and the radial protrusion. The first spring is used to force the square slide rod to drive the push plate to move upward and fit against the lower end of the housing. When the valve core is rotated to the left position, the push plate moves away from the top of the left horizontal plate. When the valve core is rotated to the right position, the push plate is located directly above the left horizontal plate. At this time, the square slide rod is pressed down, and the square slide rod drives the left horizontal plate to move downward. The left horizontal plate drives the left valve plug through the left valve rod to open the lower end of the left valve hole. When the square slide rod is released, the square slide rod returns to its original position upward under the action of the first spring, and the left horizontal plate returns to its original position upward under the action of the left first spring. Multiple left connecting rods are fixedly installed between the upper left end plate and the lower left end plate inside the left water outlet chamber. A left rotating plate is fixedly installed between the multiple left connecting rods. The upper end of the left valve rod is provided with a left transmission screw that extends upward and is threadedly connected to the left rotating plate. When the left valve rod drives the left transmission screw to move upward or downward, the left transmission screw drives the left rotating plate to rotate the left filter screen. The inner side wall of the left filter chamber is provided with a left sliding groove. Two left guide rods are fixedly installed in the left sliding groove along the radial direction of the left filter screen. A left scraper is slidably connected in the left sliding groove and slidably connected to the left guide rods. A left second spring is sleeved on the left guide rod to force the left scraper to abut against the outside of the left filter screen.

2. The filter cartridge assembly for an outdoor water purifier according to claim 1, characterized in that, The right filter element mechanism includes a lower right end plate and an upper right end plate. A right retaining ring is fixedly provided on the inner wall of the right filter cavity near its lower end. The lower right end plate is rotatably connected to the right filter cavity and abuts against the upper end of the right retaining ring. The upper right end plate is rotatably connected to the right filter cavity and is near the upper opening of the right filter cavity. A right filter screen is fixedly provided between the upper right end plate and the lower right end plate. The cross-section of the right filter screen is annular and it is coaxial with the right filter cavity. The inner side of the right filter cavity and the right filter screen... A right inlet chamber is formed between the outer side, the upper right end plate, and the lower right end plate, communicating with the right valve port and the right valve hole; a right outlet chamber is formed between the upper right end plate, the lower right end plate, and the inner side of the right filter screen, communicating with the outlet hole; a right end block is sealed and fixed on the upper right end plate inside the right filter chamber, a right convex tube is rotatably connected to the right end block on the upper right end plate, a right water chamber is provided inside the right end block communicating with the outlet hole, and the right convex tube connects the right water chamber and the right outlet chamber; The lower right end plate has multiple right notches evenly spaced along its circumferential direction at its edge. The bottom of the right filter chamber has a right inverted conical surface below the right notch. The right inverted conical surface is used to guide particulate impurities falling from the right notch to the right valve hole.

3. A filter cartridge assembly for an outdoor water purifier according to claim 2, characterized in that, The right valve assembly includes a right valve stem. A left and right sliding rod extending downwards are symmetrically fixed on both sides of the lower end of the housing on the left and right sides of the square sliding rod. A baffle is fixed between the lower ends of the left and right sliding rods. The right valve stem is located inside the right valve hole and is arranged axially along the right valve hole. The upper end of the right valve stem passes through the lower right end plate and extends into the right water outlet chamber. The lower end of the right valve stem extends downwards out of the right valve hole and is fixedly connected to a right horizontal plate that slides on the right sliding rod. A right valve plug is provided on the outside of the right valve stem. A right spring is sleeved on the right sliding rod. The right spring is located between the right horizontal plate and the baffle to force the right valve stem to drive the right valve plug upwards to seal the lower end of the right valve hole. The square... A push plate is fixedly provided at the lower end of the slide rod, and a radial protrusion is fixedly provided at the upper end of the square slide rod. A first spring is sleeved on the square slide rod between the upper end of the valve core and the radial protrusion. The first spring is used to force the square slide rod to drive the push plate to move upward and fit against the lower end of the housing. When the valve core is turned to the right position, the push plate moves away from the top of the right horizontal plate. When the valve core is turned to the left position, the push plate is located directly above the right horizontal plate. At this time, the square slide rod is pressed down, and the square slide rod drives the right horizontal plate to move downward. The right horizontal plate drives the right valve plug through the right valve rod to open the lower end of the right valve hole. When the square slide rod is released, the square slide rod returns to its original position upward under the action of the first spring, and the right horizontal plate returns to its original position upward under the action of the right first spring.

4. A filter cartridge assembly for an outdoor water purifier according to claim 3, characterized in that, Multiple right connecting rods are fixedly installed between the upper right end plate and the lower right end plate inside the right water outlet chamber. A right rotating plate is fixedly installed between the multiple right connecting rods. The upper end of the right valve rod is provided with a right transmission screw that extends upward and is threadedly connected to the right rotating plate. When the right valve rod drives the right transmission screw to move upward or downward, the right transmission screw drives the right rotating plate to rotate the right filter screen. The inner side wall of the right filter chamber is provided with a right sliding groove. Two right guide rods are fixedly installed in the right sliding groove along the radial direction of the right filter screen. A right scraper is slidably connected in the right sliding groove and slidably connected to the right guide rods. A right second spring is sleeved on the right guide rod to force the right scraper to abut against the outside of the right filter screen.

5. A method for operating a filter cartridge assembly for an outdoor water purifier as described in claim 1, characterized in that... Includes the following steps: Pressurized water enters the slot through the inlet hole. When the valve core is turned to the left position, the pressurized water enters the left filter chamber through the left valve port. After passing through the left filter element mechanism, the pressurized water is discharged through the outlet hole. When the valve core is turned to the right position, the pressurized water enters the right filter chamber through the right valve port. After passing through the right filter element mechanism, the pressurized water is discharged through the outlet hole. When the valve core is turned away from both the left and right positions, the pressurized water splits into two paths: one path enters the left filter chamber through the left valve port, and the other path enters the right filter chamber through the right valve port. When the left filter element... When the mechanism is blocked, turn the valve core to the right position and press down the square slide rod. The lower end of the square slide rod controls the left valve assembly to open the lower end of the left valve hole. At this time, the pressurized water in the outlet pipe backwashes the left filter element mechanism, and the flushing water is discharged downward through the left valve hole. When the right filter element mechanism is blocked, turn the valve core to the left position and press down the square slide rod. The lower end of the square slide rod controls the right valve assembly to open the lower end of the right valve hole. At this time, the pressurized water in the outlet pipe backwashes the right filter element mechanism, and the flushing water is discharged downward through the right valve hole.

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