A direct drinking water treatment device

Abstract

The application discloses a kind of direct drinking water treatment equipment, it is related to the technical field of water purifier, it includes main body shell, main body shell is opened with flow guide cavity, flow guide vane is rotationally arranged in flow guide cavity, filter cavity is opened with filter core structure being arranged in flow guide vane bottom in main body shell, flow guide vane bottom is provided with rotating main rod, rotating main rod bottom is movably extended to the friction support plate being arranged in filter cavity;Flow guide cavity is located in flow guide vane bottom and is provided with linkage upper cover, multiple rotating sub-wheels are arranged in linkage upper cover and rotate around rotating main rod, and cleaning brush is arranged in rotating sub-wheel bottom and extends to filter core structure inside.The application generates extrusion, scraping, cleaning mixed action by friction support plate and cleaning brush, effectively cleans filter core surface, inside, forms full-automatic cleaning discharge operation.

Description

Technical Field

[0001] This invention relates to the field of water purifier technology, and in particular to a direct drinking water treatment device. Background Technology

[0002] In the current direct drinking water treatment market, the clogging of filter elements and secondary pollution are the core contradictions that restrict the lifespan of equipment and the quality of water output. Early direct drinking water machines mainly relied on periodic manual disassembly and cleaning or ozone generators for sterilization. Although ozone can effectively inhibit bacterial growth, physical scraping is still required to completely remove the mud, colloids and biofilms physically deposited on the filter screen. Currently, self-cleaning filter devices driven by water pressure have appeared on the market. For example, the invention patent with announcement number CN121177822A, a self-cleaning filter device for water injection wellheads, has the following shortcomings in use: The device uses the opening and closing of a self-cleaning valve, supplemented by water pressure, to flush the inner wall of the pipe and the filter element with water flow. However, in practical applications, when encountering sticky impurities such as biofilm, simple water flow impact not only fails to remove them, but may also compact them. At the same time, it can only clean the surface of the filter element, while the filter pores inside the filter element will become clogged over time. Summary of the Invention

[0003] In order to improve the problem that the self-cleaning method of existing water filtration equipment is one-sided and cannot form an effective cleaning and discharge, the present invention provides a direct drinking water treatment device.

[0004] The direct drinking water treatment device provided by this invention adopts the following technical solution: A direct drinking water treatment device includes a main shell with a flow guiding cavity. A flow guiding fan blade is rotatably disposed within the flow guiding cavity to guide water flow. A filter chamber is disposed at the bottom of the flow guiding fan blade within the main shell, and a filter element structure for filtering water flow is disposed within the filter chamber. A rotating main rod is disposed at the bottom of the flow guiding fan blade, and a friction support plate is movably extended from the bottom of the rotating main rod into the filter chamber. The friction support plate is rotatably disposed within the filter element structure to perform physical scraping. A linkage cover is provided at the bottom of the guide fan blade inside the flow guide cavity. Multiple rotating secondary wheels are arranged around the rotating main rod inside the linkage cover. The bottom of the rotating secondary wheels extends into the filter element structure and is provided with a cleaning brush. The cleaning brush rotates synchronously with the friction support plate to clean the pores of the filter element structure.

[0005] By adopting the above technical solution, the guide fan blades are located in the guide cavity and receive the force of the water flow, thereby driving the rotating main rod. This causes the friction support plate to perform a squeezing and friction action within the filter element structure. At the same time, the linkage cover is located at the bottom of the guide fan blades, causing multiple rotating auxiliary wheels to receive the rotational power of the rotating main rod. This causes multiple cleaning brushes to rotate synchronously within the filter element structure. The cleaning brushes rotate around the rotating main rod and also rotate on their own axis, thus forming a fine cleaning action that is distinct from the friction support plate. This constitutes a dual cleaning process, effectively cleaning both the surface and the interior of the filter element.

[0006] Preferably, the linkage cover has a gear cavity inside, and the inner wall surface of the gear cavity is provided with an internal tooth surface. The internal tooth surface meshes with and is connected to multiple rotating auxiliary wheels. A limiting top groove is provided at the top of the gear cavity at the position of the multiple rotating auxiliary wheels, and a limiting bottom groove is provided at the bottom of the gear cavity at the position of the multiple rotating auxiliary wheels. The limiting bottom groove passes through the bottom of the linkage cover and communicates with the filter cavity.

[0007] By adopting the above technical solution, the opening of the gear cavity provides rotation space for the rotating pair wheel. At the same time, the rotating pair wheel meshes with the internal tooth surface, and the limiting top groove and limiting bottom groove are located at the upper and lower ends of the rotating pair wheel, thereby maintaining the relative stability of multiple rotating pair wheels.

[0008] Preferably, a synchronizing rod is fixedly provided at the bottom of each of the plurality of rotating sub-wheels, and the plurality of synchronizing rods extend downward from the limiting bottom groove and are located within the filter element structure. The surface of the synchronizing rod within the filter element structure is fixedly connected to the cleaning brush.

[0009] By adopting the above technical solution, the cleaning brush is fixedly connected to the synchronizing rod, thereby being synchronously fixed with the rotating auxiliary wheel. When the rotating auxiliary wheel rotates, it drives the cleaning brush to rotate synchronously, and works with the friction support plate to perform double cleaning of the inside of the filter element structure.

[0010] Preferably, the bottom of the flow guide cavity is provided with a connecting ring opening, and the bottom of the linkage cover is provided with a connecting groove at the position of the connecting ring opening, and the connecting groove is threadedly connected to the connecting ring opening.

[0011] By adopting the above technical solution, the connecting groove and the connecting ring are threaded together, so that the linkage cover is fixedly installed in the main body shell, providing a stable rotation environment for the gears in the gear cavity, and at the same time, it can be disassembled to facilitate regular maintenance by personnel.

[0012] Preferably, the surface of the rotating main rod movably penetrates the linkage upper cover and is located within the gear cavity. A rotating main wheel that meshes with multiple rotating auxiliary wheels is fixedly mounted on the surface of the rotating main rod within the gear cavity. A limiting disc is fixedly mounted on the surface of the rotating main rod at the bottom of the rotating main wheel. The limiting disc cooperates with the limiting bottom groove to limit the bottom of the multiple rotating auxiliary wheels. A stabilizing seat is fixedly mounted on the surface of the rotating main rod at the bottom of the limiting disc. The stabilizing seat and the inner wall of the connecting ring limit the multiple synchronizing rods.

[0013] By adopting the above technical solution, the guide fan blades receive water flow and rotate simultaneously. The rotating main rod receives torque to drive the rotating main wheel to rotate. The rotation of the rotating main wheel drives multiple rotating secondary wheels to rotate synchronously. The multiple rotating secondary wheels mesh with the internal tooth surface, so that the multiple rotating secondary wheels rotate on their own axis while revolving around the rotating main wheel in the gear cavity. This allows the cleaning brush to rotate synchronously on its own axis and revolve within the filter element structure. At the same time, the limiting disc and the limiting bottom groove cooperate to restrict the rotating secondary wheels, and the stabilizing seat cooperates with the inner wall of the connecting ring to restrict the synchronizing rod, so that the rotating secondary wheels and the synchronizing rod maintain stable movement.

[0014] Preferably, the main body shell has a through-hole at the bottom of the filter chamber, a fixed base is fixed inside the through-hole, a threaded opening is through the middle of the fixed base, and the bottom of the rotating main rod is provided with a threaded surface that is threadedly connected to the threaded opening.

[0015] By adopting the above technical solution, the opening of the connecting port provides a fixed support point for the installation of the fixed chassis, and the threaded port is connected to the threaded surface, so that the rotating main rod rotates with the fixed chassis as the bottom support point, thereby improving the rotational stability of the rotating main rod.

[0016] Preferably, the rotating main rod is located inside the filter chamber, and a drain port is provided at the top of the threaded surface. The drain port passes through the bottom of the rotating main rod and communicates with the threaded opening. A drain pipe is fixed on one side of the outer surface of the main body shell, and one end of the drain pipe extends into the main body shell and is connected to the threaded opening.

[0017] By adopting the above technical solution, the drain outlet and the connecting threaded port allow the water inside the filter element structure to be discharged into the drain pipe without affecting the rotation of the main rotating rod, thereby completing the wastewater discharge of the filter element structure.

[0018] Preferably, a solenoid valve is provided on one side of the top of the sewage pipe, and a water quality detector is provided on the top of the sewage pipe on the side of the solenoid valve.

[0019] By adopting the above technical solution, the detection end of the water quality detector is inserted into the sewage pipe to detect the water quality inside the filter element structure. When the water quality pollution inside the filter element structure exceeds the standard value, the solenoid valve is opened, thereby discharging the water inside the filter element structure to the outside.

[0020] Preferably, the top of the main body shell is fixed with a water conveying shell for receiving water flow, and the bottom of the main body shell is fixed with a drain shell for discharging drinking water.

[0021] By adopting the above technical solution, the water supply shell is connected to the external water supply structure to receive water flow, and the drainage shell is connected to the external water demand structure to discharge filtered drinking water.

[0022] Preferably, the bottom of the flow guiding cavity is provided with multiple water inlet grooves that connect to the filter cavity around the connecting ring, and the bottom of the filter cavity is provided with multiple water outlet grooves around the outer surface of the filter element structure. The filter element structure is provided with vibration damping layers at both the upper and lower ends.

[0023] By adopting the above technical solution, the water inlet tank receives the water flow introduced from the guide fan blades and delivers it to the inside of the filter element structure. The filter element structure filters the water flow and delivers it to the drain shell through the water outlet tank, thereby completing the filtration process. At the same time, the vibration damping layer is located at the upper and lower ends of the filter element structure, thereby stabilizing the filter element structure and avoiding the vibration caused by the friction support plate and cleaning brush from damaging the service life of the filter element structure.

[0024] In summary, the present invention has at least one of the following beneficial technical effects: 1. By using the rotating main rod to link the friction support plate and the cleaning brush, the friction support plate generates squeezing friction on the filter element structure from the inside out, thereby cleaning the crusted debris on the inner surface of the filter element structure, and applying vibration to the inside of the filter element structure to loosen the internal debris. Then, the high-frequency sweeping of the cleaning brush cleans the fine debris on the inner surface of the filter element structure and the debris emanating from the inside out in a timely manner. Finally, a dual compound motion is formed on the filter element to ensure the cleaning effect of the filter element. 2. Water flows through the filter element structure into the drain pipe from the drain outlet, allowing the water quality detector to continuously monitor the water quality. When the water quality becomes too mixed, the solenoid valve opens the drain pipe, discharging the debris cleaned by the friction plate and cleaning brush along with the water flow to the outside, thus forming an integrated automatic self-cleaning function. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a schematic diagram showing the connection between the main body shell, the water supply shell, and the drainage shell of the present invention. Figure 3 This is a schematic diagram of the installation of the main body shell, the linkage top cover, and the rotating main rod of the present invention; Figure 4 This is a schematic diagram of the rotating main rod structure of the present invention; Figure 5 This is a schematic cross-sectional view of the internal structure of the linkage cover of the present invention; Figure 6This is a schematic diagram showing the connection between the linkage upper cover and the rotating main rod of the present invention; Figure 7 This is a cross-sectional view of the overall structure of the present invention.

[0026] Reference numerals: 1. Main body shell; 2. Water inlet shell; 3. Drainage shell; 4. Sewage pipe; 5. Flow guide cavity; 6. Filter cavity; 7. Linkage cover; 71. Water inlet; 72. Gear cavity; 73. Internal gear surface; 74. Limiting bottom groove; 75. Rotating auxiliary wheel; 76. Synchronizing rod; 77. Cleaning brush; 78. Connecting groove; 79. Limiting top groove; 8. Rotating main rod; 81. Friction support plate; 82. Sewage outlet; 83. Threaded surface; 84. Stabilizing seat; 85. Limiting plate; 86. Rotating main wheel; 87. Guide fan blade; 9. Inlet tank; 10. Outlet tank; 11. Connecting port; 12. Fixed base; 13. Filter element structure; 14. Vibration damping layer; 15. Solenoid valve; 16. Water quality detector; 17. Threaded port; 18. Connecting ring port. Detailed Implementation

[0027] The following is in conjunction with the appendix Figures 1-7 The present invention will be described in further detail below.

[0028] This invention discloses a direct drinking water treatment device.

[0029] Reference Figure 1 , Figure 2 , Figure 3 A direct drinking water treatment device includes a main body shell 1, a water conveying shell 2 connected to the top of the main body shell 1, the water conveying shell 2 being connected to an external tap water supply device to receive water flow, a drain shell 3 connected to the bottom of the main body shell 1, the bottom of the drain shell 3 being connected to an external drinking water pipeline to deliver filtered drinking water to the outside, and a flow guiding cavity 5 opened on the top of the inner surface of the main body shell 1, the top of the flow guiding cavity 5 being connected to the water conveying shell 2; A filter chamber 6 is provided at the bottom of the guide cavity 5 inside the main body shell 1. A water outlet trough 10 is provided downward through the outer ring of the filter chamber 6 inside the main body shell 1. The water outlet trough 10 is connected to the drain shell 3. A connecting port 11 is provided through the center of the bottom of the filter chamber 6. The connecting port 11 is connected to the drain shell 3. A fixed base 12 is fixed at one end of the connecting port 11 located in the drain shell 3. A threaded port 17 is provided through the middle of the fixed base 12. A sewage pipe 4 is connected to the bottom of the threaded port 17. The end of the sewage pipe 4 away from the threaded port 17 extends laterally and passes through the side wall of the main body shell 1 to the outside, thereby discharging the sewage inside the main body shell 1 to the outside. A solenoid valve 15 is fixedly installed on the surface of the sewage pipe 4 located outside the main body shell 1. The solenoid valve 15 is normally in the closed state and is connected to external electrical control equipment to set the opening and closing of the sewage pipe 4. A water quality detector 16 is fixedly installed on one side of the solenoid valve 15 on the surface of the sewage pipe 4. The detection end of the water quality detector 16 extends into the sewage pipe 4 to detect the water flow quality. The water quality detector 16 is a photoelectric turbidity sensor with a detection range of 0 to 1000 NTU. When the real-time monitoring value of the sensor is greater than 50 NTU and the duration is more than 5 seconds, the water quality detector 16 sends a signal to control the solenoid valve 15 to adjust the opening state, thereby discharging the sewage inside the device.

[0030] Reference Figure 3 , Figure 4 , Figure 6 A rotating main rod 8 is rotatably mounted on the surface of the fixed base 12. The bottom end of the rotating main rod 8 is provided with a threaded surface 83, which is threadedly connected to the threaded opening 17. A guide key is fixed on the surface of the threaded surface 83, so that the rotating main rod 8 can only rotate laterally within the threaded opening 17 and cannot move longitudinally along the thread. A filter element structure 13 is abutted against the inner wall of the filter chamber 6. The filter element structure 13 is generally annular and consists of a PP cotton filter element group and an activated carbon filter element. The filter element structure 13 has pores inside to adsorb free residual chlorine, odor substances, colloids, organic matter and other impurities in the water. Vibration damping layers 14 are fixed at both the upper and lower ends of the filter element structure 13. The vibration damping layers 14 use silicone gaskets with a Shore hardness of 50A. The two vibration damping layers 14 are abutted against and fixed to the upper and lower inner walls of the filter chamber 6 respectively. The surface of the rotating main rod 8 is located in the annular center of the filter element structure 13, and multiple friction support plates 81 are fixed around it. The front surface of the friction support plates 81 is set as a 160° cone, and the multiple friction support plates 81 all abut against the inner surface of the filter element structure 13. Whenever the friction support plate 81 rotates and contacts the current part of the inner surface of the filter element structure 13, it squeezes the PP cotton filter element group on the inner surface of the filter element structure 13. The PP cotton filter element group is squeezed and transmitted to the activated carbon filter element group, causing the activated carbon filter element group to loosen. Because the vibration of the activated carbon filter element group is weakened by the transmission of the PP cotton filter element group, the activated carbon filter element group does not change its internal structure while loosening. The surface of the rotating main rod 8 is provided with a drain port 82 at the bottom of the friction support plate 81. The drain port 82 passes through the bottom of the rotating main rod 8 and is connected to the threaded port 17, so that the water in the filter element structure 13 flows into the drain pipe 4 and is detected by the water quality detector 16. The top of the rotating main rod 8 extends upward into the flow guide cavity 5, and a flow guide fan 87 is fixed on the surface of the rotating main rod 8 within the flow guide cavity 5. The top of the flow guide fan 87 is designed with a 40° inclination to obtain the maximum starting torque, and all the fan blades are arranged around the rotating main rod 8, so that the flow guide fan 87 receives the water flow discharged from the water supply shell 2 and generates an interaction force, dispersing the water flow from all sides while driving the rotating main rod 8 to rotate. Since the direct drinking water equipment may be subject to fluctuations in the water quality of the source, a layer of 304 stainless steel pre-filter with a pore size of 800 to 1000 microns can be added upstream of the flow guide fan 87 to intercept large particles of sand, biofilm and other impurities that may jam the gear set, ensuring the absolutely reliable operation of the fluid power drive system.

[0031] Reference Figure 5 , Figure 6 , Figure 7 A connecting ring 18 is provided at the bottom center of the flow guide cavity 5. The outer surface of the connecting ring 18 is provided with threads. A linkage top cover 7 is fixedly installed in the flow guide cavity 5. A connecting groove 78 is opened on the lower end of the linkage top cover 7. The connecting groove 78 is threadedly connected to the connecting ring 18, thereby forming a fixed connection between the linkage top cover 7 and the main body shell 1. A rubber ring is provided on the side surface of the linkage top cover 7, so that the outer surface of the linkage top cover 7 is sealed to the inner wall of the flow guide cavity 5. A water delivery groove 71 is opened around the surface of the linkage top cover 7. The water delivery groove 71 is distributed in the inclined direction of the flow guide fan blade 87 to accelerate the water flow rate. At the same time, multiple water inlet grooves 9 are opened around the connecting ring 18 at the bottom of the flow guide cavity 5 to deliver water to the middle of the filter element structure 13. The upper cover 7 has a gear cavity 72 inside, and the inner side wall surface of the gear cavity 72 is set as an internal tooth surface 73. Multiple rotating auxiliary wheels 75 (at least three rotating auxiliary wheels 75) are arranged in the gear cavity 72 and mesh with the internal tooth surface 73. At the same time, a rotating main wheel 86 is fixed on the surface of the rotating main rod 8 within the range of the gear cavity 72. The outer surface of the rotating main wheel 86 is meshed with the multiple rotating auxiliary wheels 75, so that when the rotating main rod 8 rotates, it drives the rotating main wheel 86 and the rotating auxiliary wheels 75 to rotate synchronously. The rotating auxiliary wheels 75 are also meshed with the internal tooth surface 73, so that the multiple rotating auxiliary wheels 75 rotate around the rotating main wheel 86 while rotating on their own axis. The tooth ratio of the rotating main wheel 86 to the rotating auxiliary wheels 75 can be set to 3:1 to 5:1, which can form a high-frequency sweep on the filter element surface and effectively prevent biofilm deposition.

[0032] A synchronizing rod 76 is fixedly installed at the bottom of multiple rotating auxiliary wheels 75. The synchronizing rod 76 extends downward and is located in the annular middle of the filter element structure 13. A cleaning brush 77 is fixedly installed at the extended end of the synchronizing rod 76. When the rotating auxiliary wheels 75 rotate and circumferentially, they drive the cleaning brush 77 to clean the inner surface of the filter element structure 13 in a circumferential manner. At the same time, a limiting top groove 79 is opened at the top of the inner surface of the gear cavity 72. The limiting top groove 79 is laterally engaged with the top of the sliding rod of the multiple rotating auxiliary wheels 75. A limiting bottom groove 74 is opened at the bottom of the inner surface of the gear cavity 72. The limiting bottom groove 74 passes through the lower end face of the linkage cover 7 and communicates with the outside. A limiting plate 85 is fixedly installed on the surface of the rotating main rod 8 at the position of the limiting bottom groove 74. The surface of the limiting plate 85 is a stepped groove, so that the limiting plate 85 and the limiting bottom groove 74 form a groove, thereby forming a lateral engagement with the bottom of the sliding rod of the rotating auxiliary wheel 75. It should be noted that a stabilizing seat 84 is provided on the surface of the rotating main rod 8 at the bottom of the limiting plate 85. The stabilizing seat 84 is laterally aligned with the inner surface of the connecting ring 18, thereby limiting the multiple synchronizing rods 76. This causes the synchronizing rods 76 and the rotating secondary wheel 75 to be laterally engaged, reducing the vibration generated by the rotating secondary wheel 75 during movement. At the same time, two labyrinth seals can be provided at the contact surface between the linkage cover 7 and the rotating main rod 8, in conjunction with a special fluororubber sealing ring, to effectively prevent mud and sand from entering the meshing gap between the rotating secondary wheel 75 and the rotating main wheel 86, thus extending the service life of the gears. In this device, sealing rings are provided at the connection between the main outer shell 1 and the water supply shell 2 and the drainage shell 3, at the connection between the fixed base 12 and the connecting port 11, and at the connection between the threaded port 17 and the sewage pipe 4 to prevent water leakage. At the same time, the parts that come into direct contact with the water flow, such as the inner tooth surface 73, the synchronizing rod 76, the cleaning brush 77, the rotating main rod 8, the threaded surface 83, and the guide fan blade 87, are all made of nylon PA66 material, which has high bending and contact fatigue strength, and is chemically stable with no toxic substances released, meeting drinking water safety standards. The rotating secondary wheel 75 and the rotating main wheel 86 are both filled with modified PA66 + 30% glass fiber, which maintains excellent dimensional stability while having extremely low water absorption.

[0033] The implementation principle of a direct drinking water treatment device according to an embodiment of the present invention is as follows: When using this device, external water flow is first introduced through the water supply shell 2. The water flow first contacts the surface of the guide fan blade 87 from top to bottom. The impact force of the water flow is applied to the surface of the guide fan blade 87, and the guide fan blade 87 rotates under the impact force, driving the rotating main rod 8 to rotate. At the same time, the top water flow is dispersed to the surrounding area. The water flow is guided by the inclined fan blade surface and rotation of the guide fan blade 87, and thus flows into the water inlet tank 9. The water flow flows down from the water inlet tank 9 into the water supply tank 71, and finally flows into the annular middle part of the filter element structure 13. At the same time, part of the water flow enters the drain pipe 4 through the drain outlet 82, and is thus detected by the water quality detector 16. As the guide fan blades 87 drive the rotating main rod 8 to rotate, the rotating main rod 8 receives torque and drives multiple guide fan blades 87 to rotate on the annular inner surface of the filter element structure 13, thereby scraping and squeezing the inner surface of the filter element structure 13, thus cleaning the crust and scale on the inner surface of the filter element structure 13. At the same time, the rotating main rod 8 drives the rotating main wheel 86 to rotate, causing the three rotating secondary wheels 75 to rotate on their own axis. The three rotating secondary wheels 75 mesh with the internal tooth surface 73 and rotate around the rotating main wheel 86. With the movement of the three rotating secondary wheels 75, the cleaning brush 77 is driven to move synchronously through the synchronizing rod 76. The cleaning brush 77 rotates at the same frequency as the friction support plate 81, and rotates on its own axis to thoroughly clean the filter holes on the inner surface of the filter element structure 13 and the surface of the friction support plate 81. Meanwhile, the water quality detector 16 is always in the detection state. When the turbidity value of the water in the filter structure 13 exceeds the set threshold and lasts for more than 3 seconds, the water quality detector 16 sends a signal to drive the solenoid valve 15 to operate. The operation of the solenoid valve 15 opens the drain pipe 4. At this time, the water in the filter structure 13 carries the debris that has been cleaned into the drain pipe 4 through the drain port 82. The sewage is discharged to the outside through the drain pipe 4 by utilizing the pressure difference between the inside and outside of the cavity. As the water supply shell 2 continues to supply water, when the water flowing into the drain pipe 4 decreases to within the set threshold, the solenoid valve 15 closes the drain port 82 after a five-second delay, thereby preventing dirty water residue at the bottom of the filter structure 13. The filter structure 13 continues to filter water, so that the clean water enters the drain shell 3 from the water outlet 10 and is discharged to the outside for drinking.

[0034] The above are merely optional embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A direct drinking water treatment device, characterized in that: The device includes a main shell (1), which has a flow guide cavity (5). A flow guide fan (87) for guiding water flow is rotatably arranged in the flow guide cavity (5). A filter cavity (6) is opened at the bottom of the flow guide fan (87) in the main shell (1). A filter element structure (13) for filtering water flow is arranged in the filter cavity (6). A rotating main rod (8) is arranged at the bottom of the flow guide fan (87). The bottom of the rotating main rod (8) extends movably into the filter cavity (6) and a friction support plate (81) is arranged. The friction support plate (81) is located in the filter element structure (13) and rotates to perform physical scraping. The guide cavity (5) is provided with a linkage cover (7) at the bottom of the guide fan blade (87). Multiple rotating sub-wheels (75) are provided around the rotating main rod (8) inside the linkage cover (7). The bottom of the rotating sub-wheels (75) extends into the filter element structure (13) and is provided with a cleaning brush (77). The cleaning brush (77) rotates synchronously with the friction support plate (81) to clean the pores of the filter element structure (13) in a double manner.

2. The direct drinking water treatment equipment according to claim 1, characterized in that: The linkage cover (7) has a gear cavity (72) inside. The inner wall surface of the gear cavity (72) is provided with an internal tooth surface (73). The internal tooth surface (73) meshes with multiple rotating auxiliary wheels (75). The top of the gear cavity (72) is provided with a limiting top groove (79) at the position of multiple rotating auxiliary wheels (75). The bottom of the gear cavity (72) is provided with a limiting bottom groove (74) at the position of multiple rotating auxiliary wheels (75). The limiting bottom groove (74) penetrates the bottom of the linkage cover (7) and communicates with the filter cavity (6).

3. The direct drinking water treatment equipment according to claim 2, characterized in that: Each of the multiple rotating sub-wheels (75) is fixedly provided with a synchronizing rod (76) at its bottom. The multiple synchronizing rods (76) extend downward from the limiting bottom groove (74) and are located in the filter element structure (13). The surface of the synchronizing rod (76) within the filter element structure (13) is fixedly connected to the cleaning brush (77).

4. The direct drinking water treatment equipment according to claim 1, characterized in that: The bottom of the flow guide cavity (5) is provided with a connecting ring opening (18), and the bottom of the linkage cover is provided with a connecting groove (78) at the position of the connecting ring opening (18), and the connecting groove (78) is threadedly connected to the connecting ring opening (18).

5. The direct drinking water treatment equipment according to claim 2, characterized in that: The rotating main rod (8) moves through the linkage cover (7) and is located in the gear cavity (72). The rotating main rod (8) located in the gear cavity (72) is fixed with a rotating main wheel (86) that meshes with multiple rotating auxiliary wheels (75). The rotating main rod (8) is fixed with a limiting plate (85) at the bottom of the rotating main wheel (86). The limiting plate (85) cooperates with the limiting bottom groove (74) to limit the bottom of multiple rotating auxiliary wheels (75). The rotating main rod (8) is fixed with a stabilizing seat (84) at the bottom of the limiting plate (85). The stabilizing seat (84) and the inner wall of the connecting ring (18) limit multiple synchronizing rods (76).

6. The direct drinking water treatment equipment according to claim 1, characterized in that: The main body shell (1) has a through-hole (11) at the bottom of the filter chamber (6). A fixed base (12) is fixed inside the through-hole (11). A threaded opening (17) is through-hole in the middle of the fixed base (12). A threaded surface (83) is provided at the bottom of the rotating main rod (8) and is threaded to the threaded opening (17).

7. A direct drinking water treatment device according to claim 6, characterized in that: The rotating main rod (8) is located inside the filter chamber (6) and a drain port (82) is provided at the top of the threaded surface (83). The drain port (82) passes through the bottom of the rotating main rod (8) and communicates with the threaded opening (17). A drain pipe (4) is fixed on one side of the outer surface of the main body shell (1). One end of the drain pipe (4) extends into the main body shell (1) and is connected to the threaded opening (17).

8. The direct drinking water treatment equipment according to claim 7, characterized in that: A solenoid valve (15) is provided on one side of the top of the sewage pipe (4), and a water quality detector (16) is provided on the top of the sewage pipe (4) on one side of the solenoid valve (15).

9. A direct drinking water treatment device according to claim 1, characterized in that: The main body shell (1) has a water conveying shell (2) fixed at the top for receiving water flow, and a drain shell (3) fixed at the bottom for discharging drinking water.

10. A direct drinking water treatment device according to claim 4, characterized in that: The bottom of the flow guide cavity (5) is surrounded by a connecting ring (18) with multiple water inlet grooves (9) that connect to the filter cavity (6). The bottom of the filter cavity (6) is surrounded by multiple water outlet grooves (10) on the outer surface of the filter element structure (13). The filter element structure (13) is fixed with vibration damping layers (14) at both the upper and lower ends.

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