A water filtration system

Abstract

This application discloses a water filtration system, including a filter cartridge and a reversing body; the filter cartridge has a filter cavity and a drain end on its lower side; the reversing body has a communicating cavity communicating with the filter cavity on its lower side, and a hollow connecting part is provided in the communicating cavity; the reversing body has an inlet end communicating with the communicating cavity on its left side, and an outlet end communicating with the hollow connecting part on its right side; a receiving cavity is provided on the upper side of the reversing body, and a top cover is provided on the upper side of the receiving cavity; the water filtration system also includes a one-way valve connected to the inlet end, a moving probe connected to the valve core of the one-way valve, a PCB circuit board located in the receiving cavity, a position sensor located in the receiving cavity and extending downward into the communicating cavity, a water quality detector located in the filter cavity and extending upward through the receiving cavity and connected to the PCB circuit board, an automatic drain valve connected to the drain end and electrically connected to the PCB circuit board, a filter cartridge located in the filter cavity and connected to the hollow connecting part on its upper side, and an automatic outlet valve connected to the outlet end and electrically connected to the PCB circuit board.

Description

Technical Field

[0001] This application relates to the technical field of filtration, and more particularly to a water filtration system. Background Technology

[0002] Water outages are common in daily life, usually caused by aging and burst water pipes or pipe ruptures due to municipal construction. After pipe repairs, residents often find the water very murky and mixed with sediment when they turn on the tap. Such water is not only unsuitable for drinking but can also damage home water purification systems. Although some homes have installed whole-house pre-filters, existing pre-filters cannot automatically remove the murky wastewater containing sediment when the water supply is restored after an outage, nor do they have an automatic sewage discharge function, thus failing to meet practical needs. Therefore, those skilled in the art urgently need to develop a new type of water filtration system to meet the requirements of practical applications. Summary of the Invention

[0003] The main objective of this application is to provide a water filtration system that addresses the aforementioned technical problems.

[0004] A water filtration system includes a filter cartridge and a reversing body connected to the upper side of the filter cartridge; the filter cartridge has a filter cavity inside and a drain end communicating with the filter cavity on its lower side; the reversing body has a communicating cavity communicating with the filter cavity on its lower side, and a hollow connecting part extending downward in the communicating cavity is provided in the communicating cavity; the reversing body has a water inlet end communicating with the communicating cavity on its left side and a water outlet end communicating with the hollow connecting part on its right side; the reversing body has a receiving cavity on its upper side, and a top cover is provided on the upper side of the receiving cavity;

[0005] The water filtration system also includes:

[0006] A one-way valve, which is connected to the water inlet;

[0007] A movable probe, which is connected to the one-way valve core, is located between the water inlet and the communicating cavity;

[0008] A PCB circuit board is disposed within the accommodating cavity;

[0009] A position sensor is disposed within the accommodating cavity, connected to the lower side of the PCB circuit board, and extends downward into the communicating cavity to detect the specific position of the moving probe.

[0010] A water quality detector is located inside the filter chamber, and its upper end extends upward through the housing and connects to the PCB circuit board.

[0011] An automatic drain valve is connected to the drain end and is electrically connected to the PCB circuit board.

[0012] A filter element is disposed inside the filter cavity, and its upper side is connected to the hollow connecting part;

[0013] An automatic water outlet valve is connected to the water outlet and is electrically connected to the PCB circuit board.

[0014] As described above, the one-way valve includes a first valve body connected to the water inlet, a second valve body connected to the first valve body, and a valve core disposed between the first valve body and the second valve body and capable of extending and retracting left and right.

[0015] The right end of the valve core extends to the outside of the right side of the first valve body and is connected to the left side of the moving probe.

[0016] As described above, in the water filtration system, the first valve body has a first connecting cavity inside; the right side of the first connecting cavity is connected to the water inlet end, and a first supporting connecting part is provided in the middle of the cavity; a first connecting through hole is provided in the middle of the first supporting connecting part, and a first through hole is also provided on both sides outside the first connecting through hole.

[0017] The right end of the second valve body extends into the first connecting cavity and connects with the first connecting cavity, and its left end is used to connect to the water inlet pipe. A second connecting cavity is provided inside the second valve body. A second support connecting part is provided in the middle of the second connecting cavity. A second connecting through hole is provided in the middle of the second support connecting part, and a second through hole is also provided on both sides outside the second connecting through hole.

[0018] The valve core includes:

[0019] A valve needle is connected through the first connecting through hole and the second connecting through hole, and has a valve needle limiting part located in the second supporting connecting part, and its right end extends to the right out of the first connecting cavity;

[0020] A one-way sealing gasket is provided on the valve needle and located to the right of the valve needle limiting part, for sealing water flowing into the first connecting cavity through the second through hole;

[0021] A positioning connecting pad is provided on the valve needle, located on the right side of the one-way sealing pad, and a right-protruding positioning part protruding to the right is provided on its right side;

[0022] A telescopic spring, with its left side positioned and connected to the right convex positioning part, and its right side contacting and connected to the left side of the first support connecting part, is used to elastically telescopically move the valve needle, the one-way sealing gasket, and the positioning connecting gasket.

[0023] In the water filtration system described above, the left end of the movable probe is connected to the right end of the valve needle, and its right end is provided with an upwardly protruding part.

[0024] The water filtration system described above further includes a cleaning device disposed between the filter cartridge and the reversing body for cleaning the filter element;

[0025] The cleaning device includes:

[0026] The cleaning plate is sleeved on the outside of the filter element, and has a hollow scraping and cleaning through hole in its middle part that contacts the outer wall of the filter element and moves up and down for cleaning. It also has a plurality of vertical through holes located outside the hollow scraping and cleaning through hole and spaced apart.

[0027] A cleaning plate drive assembly is disposed within the accommodating cavity and connected to the PCB circuit board, with its power output end extending downward into the communicating cavity.

[0028] A transmission screw is located in the communicating cavity, with its upper end connected to the power output end of the cleaning plate drive group and its lower end threadedly connected to the cleaning plate.

[0029] A guide rod is disposed within the receiving cavity, with its upper end connected to the upper side of the communicating cavity and its lower end slidably connected to the cleaning plate.

[0030] A filter element inner wall cleaning cylinder assembly is disposed inside the filter element;

[0031] The filter element inner wall cleaning drive assembly is located inside the container cavity and connected to the PCB circuit board, and its power output end extends downward into the communicating cavity to connect with the filter element inner wall cleaning cylinder assembly.

[0032] As described above, in the water filtration system, the upper and lower edges of the hollow scraping through hole are provided with a filter element outer wall scraping slope for scraping the outer wall of the filter element.

[0033] In the water filtration system described above, the outer periphery of the cleaning plate is connected to the side wall of the filter cavity, and both its upper and lower edges are provided with filter cavity side wall scraping slopes for scraping the side wall of the filter cavity.

[0034] As described above, the water filtration system has a hollow filter element with a through hole in the middle, and multiple filter holes are provided on its periphery at intervals and connected to the hollow filter element for filtering water.

[0035] The filter element has an upper concave annular groove on its lower side, located outside the hollow through hole of the filter element;

[0036] The filter element inner wall cleaning cylinder assembly includes:

[0037] A cleaning cylinder is fitted inside the hollow through hole of the filter element, and its outer sidewall is connected to the inner wall of the hollow through hole of the filter element; the cleaning cylinder has a central through hole that runs vertically through it, and a plurality of water passage holes that communicate with the central through hole and are spaced apart on its peripheral sidewall.

[0038] The upper connecting cover is located on the upper side of the cleaning cylinder, above the hollow through hole of the filter element, and is connected to the power output end of the cleaning drive group of the inner wall of the filter element. It also has multiple water outlet holes that are vertically connected and spaced apart on its upper side.

[0039] The bottom cover is located on the lower side of the cleaning cylinder and has an upward protruding ring that can be adapted to and connected with the upper concave annular groove. The outer periphery of the upper protruding ring has an inner concave annular groove.

[0040] The bottom cover sealing ring is located on the concave annular groove and is used to seal the gap between the convex annular part and the concave annular groove.

[0041] As described above, the water filtration system has a downwardly recessed guide groove in the middle of the upper side of the upper connecting cover for guiding the connection with the power output end of the cleaning drive group on the inner wall of the filter element.

[0042] In the water filtration system described above, the water quality detector is located on the left side of the filter element and passes through the upper and lower through holes located on the far left from top to bottom;

[0043] The transmission screw is located on the right rear side of the water quality detector, and the guide rod is located on the right front side of the water quality detector.

[0044] Compared with the prior art, the above application has the following advantages:

[0045] This application utilizes the coordinated operation of a filter cartridge, a reversing body, a one-way valve, a moving probe, a PCB circuit board, a position sensor, a water quality detector, an automatic drain valve, a filter element, and an automatic outlet valve to automatically remove turbid wastewater containing sediment when water supply is restored after an outdoor water supply interruption. This not only provides automatic drainage but also significantly reduces damage to the pre-filter element and minimizes wear on indoor water purification equipment filter elements. Therefore, it not only greatly improves practicality and applicability but also further enhances the safety and health of water use, meeting the needs of practical applications and promoting the further development of water filtration technology, thus popularizing healthier water and drinking water more widely. Attached Figure Description

[0046] Figure 1 This is a perspective view of the water filtration system of this application.

[0047] Figure 2 This is a cross-sectional view of the water filtration system of this application.

[0048] Figure 3 This is a cross-sectional view of the reversing body described in the water filtration system of this application.

[0049] Figure 4 This is a cross-sectional view of the filter cartridge in the water filtration system of this application.

[0050] Figure 5 This is a cross-sectional view of the one-way valve described in the water filtration system of this application.

[0051] Figure 6 This is a cross-sectional view of the one-way valve in the water filtration system of this application after concealing some of its components.

[0052] Figure 7 This is a perspective view of the water filtration system of this application with some components hidden.

[0053] Figure 8 This is a perspective view of the filter element described in the water filtration system of this application.

[0054] Figure 9 for Figure 8 Local magnification Figure I .

[0055] Figure 10 This is an exploded view of the cleaning cylinder, the opening and closing bottom cover, and the sealing ring of the opening and closing bottom cover in the water filtration system of this application.

[0056] Figure 11 for Figure 10 Local magnification Figure II .

[0057] Figure 12 This is a perspective view of the upper connecting cover in the water filtration system of this application.

[0058] Figure 13 This is another perspective view of the upper connecting cover described in the water filtration system of this application.

[0059] Figure 14 This is a perspective view of the cleaning plate described in the water filtration system of this application. Detailed Implementation

[0060] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0061] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0062] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0063] In one embodiment of this application, as Figures 1 to 14 As shown, a water filtration system includes a filter cartridge 100 and a reversing body 200 connected to the upper side of the filter cartridge 100; the filter cartridge 100 has a filter cavity 101 inside, and a drain end 102 connected to the filter cavity 101 is provided on its lower side; the reversing body 200 has a communicating cavity 201 connected to the filter cavity 101 on its lower side, and a hollow connecting part 2011 extending downward is provided in the communicating cavity 101; the reversing body 200 has a water inlet end 202 connected to the communicating cavity 201 on its left side, and a water outlet end 203 connected to the hollow connecting part 2011 on its right side; the reversing body 200 has a receiving cavity 204 on its upper side, and a top cover 205 is provided on the upper side of the receiving cavity 204.

[0064] Furthermore, the water filtration system also includes a one-way valve 1, a moving probe 2, a PCB circuit board 3, a position sensor 4, a water quality detector 5, an automatic drain valve 6, a filter element 7, and an automatic water outlet valve 8.

[0065] The one-way valve 1 is connected to the water inlet 202; the moving probe 2 is connected to the valve core of the one-way valve 1 and is located between the water inlet 202 and the communicating cavity 201; the PCB circuit board 3 is disposed in the housing cavity 204; the position sensor 4 is disposed in the housing cavity 204, connected to the lower side of the PCB circuit board 3, and extends downward into the communicating cavity 201 to detect the specific position of the moving probe 2; the water quality detector 5 is disposed in the filter cavity 101, and its upper end extends upward through the housing cavity 204 and is connected to the PCB circuit board 3; the automatic drain valve 6 is connected to the drain end 102 and is electrically connected to the PCB circuit board 3; the filter element 7 is disposed in the filter cavity 101 and its upper side is connected to the hollow connecting part 2011; the automatic outlet valve 8 is connected to the outlet end 203 and is electrically connected to the PCB circuit board 3.

[0066] How this application works:

[0067] When a water outage occurs, the one-way valve 1 closes and is in a closed state. At the same time, the moving probe 2 moves to the left as the one-way valve 1 closes. Consequently, the position sensor 4 can no longer detect the moving probe 2, and then triggers a water outage signal. At this time, the automatic drain valve 6 receives the water outage signal and opens accordingly, and the automatic outlet valve 8 receives the water outage signal and closes accordingly.

[0068] When the outdoor water supply pipe resumes supplying water, the one-way valve 1 is opened by water pressure. The moving probe 2 moves to the right and is detected by the position sensor 4, which then triggers the position sensor 4 to send a water inflow signal. The water quality detector 5 receives the water inflow signal and detects the water inside the filter chamber 101 based on the signal. Since the flow rate into the filter chamber 101 through the one-way valve 1 is greater than the drainage flow rate of the automatic drain valve 6, the water inside the filter chamber 101 gradually fills up, and the turbid water carrying sediment that flows into the filter chamber 101 is gradually discharged by the automatic drain valve 6. When the water quality detector 5 detects that the water inside the filter chamber 101 is clear, it sends a clear water signal. The automatic drain valve 6 receives the clear water signal and closes accordingly. At the same time, the automatic outlet valve 8 receives the clear water signal and opens accordingly. The water then flows through the filter element 7 and flows to the automatic outlet valve 8, and finally to the whole house water supply pipeline.

[0069] This application, through the coordinated operation of filter cartridge 100, reversing body 200, one-way valve 1, moving probe 2, PCB circuit board 3, position sensor 4, water quality detector 5, automatic drain valve 6, filter element 7, and automatic water outlet valve 8, enables the automatic removal of turbid sewage containing sediment when water supply is restored after an outdoor water supply interruption. This not only provides automatic sewage discharge but also significantly reduces damage to the pre-filter element and minimizes the wear and tear on indoor water purification equipment filter elements. Therefore, it not only greatly improves practicality and applicability but also further enhances the safety and health of water use, meets the needs of practical applications, promotes the further development of water filtration technology, and popularizes healthier water and drinking water.

[0070] Furthermore, both the automatic drain valve 6 and the automatic water outlet valve 8 are preferably solenoid valves, which facilitates automatic switching.

[0071] Furthermore, the one-way valve 1 includes a first valve body 11 connected to the water inlet 202, a second valve body 12 connected to the first valve body 11, and a valve core 13 disposed between the first valve body 11 and the second valve body 12 and capable of extending and retracting left and right.

[0072] The right end of the valve core 13 extends to the outside of the right side of the first valve body 11 and is connected to the left side of the moving probe 2.

[0073] The first valve body 11 has a first connecting cavity 111 inside; the right side of the first connecting cavity 111 is connected to the water inlet end 202, and a first supporting connecting part 112 is provided in the middle of the cavity; a first connecting through hole 1121 is provided in the middle of the first supporting connecting part 112, and a first through hole 1122 is also provided on both sides outside the first connecting through hole 1121.

[0074] The right end of the second valve body 12 extends into the first connecting cavity 111 and is connected to the first connecting cavity 111, and its left end is used to connect to the water inlet pipe. A second connecting cavity 121 is provided inside the second valve body 121. A second support connecting part 122 is provided in the middle of the second connecting cavity 121. A second connecting through hole 1221 is provided in the middle of the second support connecting part 122, and second through holes 1222 are also provided on both sides outside the second connecting through hole 1221.

[0075] The valve core 13 includes a valve needle 131, a one-way sealing gasket 132, a positioning connecting gasket 133, and a telescopic spring 134;

[0076] The valve needle 131 is connected through the first connecting through hole 1121 and the second connecting through hole 1221, and is provided with a valve needle limiting part 1311 located in the second support connecting part 122, and its right end extends to the right out of the first connecting cavity 111; the purpose of the right end of the valve needle 131 extending to the right out of the first connecting cavity 111 is to facilitate connection with the moving probe 2.

[0077] The one-way sealing gasket 132 is disposed on the valve needle 131 and located on the right side of the valve needle limiting part 1311, and is used to seal and prevent water from flowing into the first connecting cavity 111 through the second through hole 1222.

[0078] The positioning connecting pad 133 is disposed on the valve needle 131, located to the right of the one-way sealing pad 132, and has a right-protruding positioning part 1331 protruding to the right on its right side; the telescopic spring 134 is preferably a tower-shaped telescopic spring, its left side is positioned and connected to the right-protruding positioning part 1331, and its right side is in contact with the left side of the first support connecting part 112, for elastic telescopic movement of the valve needle 131, the one-way sealing pad 132 and the positioning connecting pad 133.

[0079] Furthermore, the materials used to make the unidirectional sealing gasket 132 and the positioning connecting gasket 133 are preferably food-grade silicone, which has the advantages of being completely hygienic, heat-resistant, easy to clean, and having a long service life.

[0080] Furthermore, the left end of the moving probe 2 is connected to the right end of the valve needle 131, and its right end is provided with an upwardly protruding upper protrusion 21. The purpose of using the upper protrusion 21 in this application is to reduce the spatial distance between the moving probe 2 and the position sensor 4, thereby further improving the accuracy of detection and ensuring the stability of the entire system operation.

[0081] Furthermore, the water filtration system also includes a cleaning device 9 disposed between the filter cartridge 100 and the reversing body 200 for cleaning the filter element 7;

[0082] The cleaning device 9 includes a cleaning plate 91, a cleaning plate drive assembly 92, a transmission screw 93, a guide rod 94, a filter element inner wall cleaning cylinder assembly 95, and a filter element inner wall cleaning drive assembly 96.

[0083] The cleaning plate 91 is sleeved on the outside of the filter element 7, and has a hollow scraping and cleaning through hole 911 in its middle part that contacts the outer wall of the filter element 7 and moves up and down for cleaning, and also has a plurality of vertical through holes 912 located outside the hollow scraping and cleaning through hole 911 and spaced apart.

[0084] The cleaning plate drive assembly 92 is located in the accommodating cavity 204 and connected to the PCB circuit board 3, and its power output end extends downward into the communicating cavity 201.

[0085] The transmission screw 93 is located in the communicating cavity 201, and its upper end is connected to the power output end of the cleaning plate drive group 92, and its lower end is threadedly connected to the cleaning plate 91.

[0086] The guide rod 94 is disposed in the accommodating cavity 204, and its upper end is connected to the upper side of the communicating cavity 201, and its lower end is slidably connected to the cleaning plate 91.

[0087] The filter element inner wall cleaning cylinder assembly 95 is located inside the filter element 7;

[0088] The filter element inner wall cleaning drive assembly 96 is located in the container cavity 204 and connected to the PCB circuit board 3, and its power output end extends downward into the communicating cavity 201 to connect with the filter element inner wall cleaning cylinder assembly 95.

[0089] This application achieves the cleaning of the inner and outer walls of the filter element 7 through the coordinated operation of the cleaning plate 91, the cleaning plate drive assembly 92, the transmission screw 93, the guide rod 94, the filter element inner wall cleaning cylinder assembly 95, and the filter element inner wall cleaning drive assembly 96. This not only greatly improves the cleaning efficiency but also effectively improves the overall cleanliness of the filter element 7.

[0090] Furthermore, the cleaning plate drive assembly 92 is preferably a drive motor, or a drive motor combined with a micro gearbox. The filter inner wall cleaning drive assembly 96 is preferably a drive motor and a transmission screw, or a drive motor combined with a micro gearbox and a transmission screw.

[0091] Furthermore, the upper and lower edges of the hollow scraping through hole 911 are provided with a filter element outer wall scraping slope 9111 for scraping the outer wall of the filter element 7. The advantage is that the filter element outer wall scraping slope 9111 can appropriately reduce the hard contact with the outer side wall of the filter element 7, thereby facilitating the up and down movement to scrape the outer side wall of the filter element 7 and improving the smoothness of scraping.

[0092] Furthermore, the outer periphery of the cleaning plate 91 is connected to the side wall of the filter cavity 101, and both its upper and lower edges are provided with filter cavity side wall scraping slopes 913 for scraping the side wall of the filter cavity 101. The advantage is that it can simultaneously scrape the inner wall of the filter cavity 101 while scraping the outer wall of the filter element 7, achieving the outstanding effect of synchronous cleaning of the filter cavity 101 and the filter element 7. Moreover, when the filter cavity side wall scraping slopes 913 are provided, the hard contact with the inner wall of the filter cavity 101 can be appropriately reduced, which is conducive to scraping the inner wall of the filter cavity 101 from top to bottom and improving the smoothness of scraping.

[0093] Furthermore, the filter element 7 has a hollow filter element through hole 71 that runs vertically through the middle, and multiple filter holes 72 are provided on its periphery at intervals and communicating with the hollow filter element through hole 71 for filtering water.

[0094] The filter element 7 has an upper concave annular groove 73 located outside the hollow through hole 71 in the filter element on its lower side;

[0095] The filter element inner wall cleaning cylinder assembly 95 includes a cleaning cylinder 951, an upper connecting cover 952, a hinged bottom cover 953, and a hinged bottom cover sealing ring 954. The cleaning cylinder 951 is fitted inside the hollow through-hole 71 of the filter element, and its outer sidewall is in contact with the inner wall of the hollow through-hole 71. The cleaning cylinder 951 has a vertically penetrating central through-hole 9511, and its peripheral sidewall has multiple water passage holes 9512 that communicate with the central through-hole 9511 and are spaced apart. The upper connecting cover 952 is located on the upper side of the cleaning cylinder 951, above the hollow through-hole 71 of the filter element, and is connected to the power output end of the filter element inner wall cleaning drive assembly 96. The upper connecting cover has multiple vertically penetrating and spaced-apart water outlet holes 9521 on its upper side; the opening and closing bottom cover 953 is located on the lower side of the cleaning cylinder 951, and has an upwardly protruding upper protruding ring portion 9531 that can be adapted to connect with the upper concave ring groove 73. The outer periphery of the upper protruding ring portion 9531 has an inner concave ring groove 95311; the opening and closing bottom cover sealing ring 954 is located on the inner concave ring groove 95311 and is used to seal the gap between the upper protruding ring portion 9531 and the upper concave ring groove 73.

[0096] When the filter element inner wall cleaning cylinder assembly 95 is driven by the filter element inner wall cleaning drive assembly 96, the filter element inner wall cleaning cylinder assembly 95 rotates and moves downward. As a result, the opening and closing bottom cover 953 and the opening and closing bottom cover sealing ring 954 disengage from the filter element 7. As the dirt rubbed by the rotation of the filter element inner wall cleaning cylinder assembly 95 against the inner wall of the filter element 7, it can flow out from the water passage 9512 into the filter cavity 101.

[0097] When the cleaning device 9 starts cleaning work in a preset cycle, the main control chip on the PCB circuit board 3 sends a cleaning signal. The automatic drain valve 6 receives the cleaning signal and opens according to the cleaning signal. At the same time, the automatic water outlet valve 8 receives the cleaning signal and closes according to the cleaning signal. The cleaning device 9 starts cleaning work. The dirt on the inner and outer walls of the filter element 7 is cleaned by the cleaning plate 91 and the inner wall cleaning cylinder assembly 95 of the filter element working together. The dirt on the inner wall of the filter cavity 101 is cleaned by the outer side wall of the cleaning plate 91.

[0098] When the dirt on the inner and outer walls of the filter element 7 and the inner wall of the filter chamber 101 is discharged outward by the automatic drain valve 6, and the water quality detector 5 detects that the water inside the filter chamber 101 is clear, it sends a clear water signal. The automatic drain valve 6 receives the clear water signal and closes accordingly. At the same time, the automatic water outlet valve 8 receives the clear water signal and opens accordingly. The water then flows through the filter element 7 again and flows to the automatic water outlet valve 8, and finally flows to the whole house water supply pipeline, thus realizing automatic periodic cleaning and sewage discharge, achieving intelligent full automation, and solving the technical problems of existing traditional manual observation and manual sewage discharge.

[0099] Furthermore, the upper connecting cover 952 has a downwardly recessed guide connecting groove 9522 on its upper center to guide the connection to the power output end of the filter element inner wall cleaning drive assembly 96. The structural design of the downwardly recessed guide connecting groove 9522 greatly facilitates the connection between the upper connecting cover 952 and the power output end of the filter element inner wall cleaning drive assembly 96, thereby reducing the difficulty of connection and assembly.

[0100] Furthermore, the water quality detector 5 is located on the left side of the filter element 7, and it passes through the upper and lower through hole 912 located on the far left from top to bottom; the transmission screw 93 is located on the right rear side of the water quality detector 5, and the guide rod 94 is located on the right front side of the water quality detector 5. The purpose is to make reasonable use of the limited space of the cleaning plate 91 and the filter cavity 101 and optimize the space design.

[0101] The above description is one implementation method provided in conjunction with specific content, and does not imply that the specific implementation of this application is limited to these descriptions. Any methods or structures that are similar to or identical to those of this application, or any technical deductions or substitutions made based on the concept of this application, should be considered within the scope of protection of this application.

Claims

1. A water filtration system, comprising a filter cartridge (100) and a reversing body (200) connected to the upper side of the filter cartridge (100); the filter cartridge (100) has a filter cavity (101) inside, and a drain end (102) communicating with the filter cavity (101) is provided on its lower side; the reversing body (200) has a communicating cavity (201) communicating with the filter cavity (101) on its lower side, and a hollow connecting part (2011) extending downward is provided in the communicating cavity (201); the reversing body (200) has an inlet end (202) communicating with the communicating cavity (201) on its left side, and an outlet end (203) communicating with the hollow connecting part (2011) on its right side; characterized in that: The commutator (200) has a receiving cavity (204) on its upper side, and a cover (205) is provided on the upper side of the receiving cavity (204). The water filtration system also includes: A one-way valve (1) is connected to the water inlet (202); The movable probe (2) is connected to the valve core of the one-way valve (1) and is located between the water inlet (202) and the communicating cavity (201); PCB circuit board (3), which is disposed in the cavity (204); A position sensor (4) is located in the accommodating cavity (204), connected to the lower side of the PCB circuit board (3), and extends downward into the communicating cavity (201) to detect the specific position of the moving probe (2); A water quality detector (5) is located inside the filter chamber (101), and its upper end extends upward through the container cavity (204) and is connected to the PCB circuit board (3). An automatic drain valve (6) is connected to the drain end (102) and is electrically connected to the PCB circuit board (3); A filter element (7) is disposed in the filter cavity (101) and its upper side is connected to the hollow connecting part (2011); An automatic water outlet valve (8) is connected to the water outlet (203) and is electrically connected to the PCB circuit board (3); The water filtration system also includes a cleaning device (9) disposed between the filter cartridge (100) and the reversing body (200) for cleaning the filter element (7). The cleaning device (9) includes: The cleaning plate (91) is sleeved on the outside of the filter element (7), and has a hollow scraping through hole (911) in the middle that contacts the outer wall of the filter element (7) and moves up and down to scrape. It also has a plurality of vertical through holes (912) located outside the hollow scraping through hole (911) and spaced apart. The cleaning plate drive assembly (92) is located in the accommodating cavity (204) and connected to the PCB circuit board (3), and its power output end extends downward into the communicating cavity (201); The transmission screw (93) is located in the communicating cavity (201), and its upper end is connected to the power output end of the cleaning plate drive group (92), and its lower end is threadedly connected to the cleaning plate (91). The guide rod (94) is located in the accommodating cavity (204), and its upper end is connected to the upper side of the communicating cavity (201), and its lower end is slidably connected to the cleaning plate (91); The filter element inner wall cleaning cylinder assembly (95) is located inside the filter element (7); The filter element inner wall cleaning drive assembly (96) is located in the container cavity (204) and connected to the PCB circuit board (3), and its power output end extends downward into the communicating cavity (201) to connect with the filter element inner wall cleaning cylinder assembly (95).

2. The water filtration system according to claim 1, characterized in that, The one-way valve (1) includes a first valve body (11) connected to the water inlet (202), a second valve body (12) connected to the first valve body (11), and a valve core (13) disposed between the first valve body (11) and the second valve body (12) and capable of extending and retracting left and right. The right end of the valve core (13) extends to the outside of the right side of the first valve body (11) and is connected to the left side of the moving probe (2).

3. The water filtration system according to claim 2, characterized in that, The first valve body (11) has a first connecting cavity (111) inside; the right side of the first connecting cavity (111) is connected to the water inlet end (202), and a first supporting connecting part (112) is provided in the middle of the first supporting connecting part (112); a first connecting through hole (1121) is provided in the middle of the first supporting connecting part (112), and a first through hole (1122) is also provided on both sides outside the first connecting through hole (1121). The right end of the second valve body (12) extends into the first connecting cavity (111) and is connected to the first connecting cavity (111), and its left end is used to connect to the water inlet pipe. A second connecting cavity (121) is provided inside the valve body. A second support connecting part (122) is provided in the middle of the second connecting cavity (121). A second connecting through hole (1221) is provided in the middle of the second support connecting part (122), and a second through hole (1222) is also provided on both sides outside the second connecting through hole (1221). The valve core (13) includes: A valve needle (131) is connected through the first connecting through hole (1121) and the second connecting through hole (1221), and is provided with a valve needle limiting part (1311) located in the second support connecting part (122), and its right end extends to the right out of the first connecting cavity (111). A one-way sealing gasket (132) is provided on the valve needle (131) and located on the right side of the valve needle limiting part (1311). It is used to seal the water flowing into the first connecting cavity (111) through the second through hole (1222). The positioning connection pad (133) is located on the valve needle (131) and is situated to the right of the one-way sealing pad (132). It has a right-protruding positioning part (1331) protruding to the right on its right side. The telescopic spring (134) is positioned and connected to the right convex positioning part (1331) on its left side and is in contact with the left side of the first support connection part (112) on its right side, for elastically telescopically moving the valve needle (131), the one-way sealing gasket (132) and the positioning connection gasket (133).

4. The water filtration system according to claim 3, characterized in that, The left end of the moving probe (2) is connected to the right end of the valve needle (131), and its right end is provided with an upwardly protruding part (21).

5. The water filtration system according to claim 1, characterized in that, The hollow scraping through hole (911) has a filter element outer wall scraping slope (9111) on both the upper and lower edges for scraping the outer wall of the filter element (7).

6. The water filtration system according to claim 1, characterized in that, The outer periphery of the cleaning plate (91) is connected to the side wall of the filter cavity (101), and both its upper and lower edges are provided with filter cavity side wall scraping slopes (913) for scraping the side wall of the filter cavity (101).

7. The water filtration system according to claim 1, characterized in that, The filter element (7) has a hollow through hole (71) that runs vertically through the middle, and multiple filter holes (72) are provided on its periphery that are spaced apart and communicate with the hollow through hole (71) for filtering water. The filter element (7) has an upper concave annular groove (73) located outside the hollow through hole (71) of the filter element on its lower side. The filter inner wall cleaning cylinder assembly (95) includes: A cleaning cylinder (951) is fitted inside the hollow through hole (71) of the filter element, and its outer sidewall is connected to the inner wall of the hollow through hole (71) of the filter element; the cleaning cylinder (951) has a central through hole (9511) that runs vertically through it, and a plurality of water passage holes (9512) that communicate with the central through hole (9511) and are spaced apart on the peripheral sidewall. The upper connecting cover (952) is located on the upper side of the cleaning cylinder (951), on the upper side of the hollow through hole (71) of the filter element, and is connected to the power output end of the inner wall cleaning drive group (96) of the filter element. It also has multiple water outlet holes (9521) that are vertically connected and spaced apart on its upper side. The bottom cover (953) is located on the lower side of the cleaning cylinder (951), and it is provided with an upward protruding upper ring part (9531) that can be adapted to and connected with the upper concave ring groove (73). The outer periphery of the upper protruding ring part (9531) is provided with an inner concave ring groove (95311). The bottom cover sealing ring (954) is provided on the concave annular groove (95311) and is used to seal the gap between the upper convex annular part (9531) and the upper concave annular groove (73).

8. The water filtration system according to claim 7, characterized in that, The upper connecting cover (952) has a downwardly recessed groove (9522) in the middle of its upper side for guiding the connection to the power output end of the filter inner wall cleaning drive group (96).

9. The water filtration system according to claim 1, characterized in that, The water quality detector (5) is located on the left side of the filter element (7) and passes through the upper and lower through hole (912) located on the far left from top to bottom. The transmission screw (93) is located on the right rear side of the water quality detector (5), and the guide rod (94) is located on the right front side of the water quality detector (5).

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