A repairing device for adapting filter element of water purifier

Abstract

This invention belongs to the field of water filtration and purification technology, specifically a repair device adapted to water purifier filter cartridges. It includes a valve head with multiple telescopic modules arranged on its inner outer edge. A cleaning module is located on the side of the telescopic modules closest to the ground, and a wear self-inspection module is located on the side of the cleaning module furthest from the telescopic modules. This invention provides relatively flexible shearing force through a nylon brush plate and an inner arc silicone plate, physically peeling away oil stains adhering to the filter wall. At the macroscopic level, the spiral distribution and circumferential rotation of the nylon brush plate and the inner arc silicone plate create an overall primary spiral flow field. At the microscopic level, the jet holes arranged in a circumferential gradient on the nylon brush plate and the silicone plate generate local tangential jets, creating a double spiral flow field shearing force that effectively flushes away colloidal impurities embedded in the filter screen pores while avoiding the positive pressure effect of backwashing.

Description

Technical Field

[0001] This invention belongs to the field of water filtration and purification technology, specifically relating to a repair device adapted to water purifier filter cartridges. Background Technology

[0002] Stainless steel pre-filter for kitchen: A pre-filter specifically optimized for kitchen water use scenarios. The core uses a food-grade stainless steel filter screen, and the main body is mostly made of environmentally friendly copper or stainless steel. It can be installed on the main water pipe or a separate water inlet in the kitchen. It focuses on protecting water-related equipment in the kitchen and belongs to the auxiliary system components of a water purifier. The cleaning methods for stainless steel pre-filters for kitchens are mainly divided into two categories: backwashing and mechanical scraping. Backwashing: By changing the direction of water flow, the impact force of the reverse water flow is used to peel off and discharge the impurities on the surface of the filter screen. Mechanical scraping: Using manually or automatically driven silicone scrapers, brushes, and other components, the filter screen is rotated or reciprocated along the surface to physically remove stubborn impurities adhering to the filter screen. In actual kitchen water use scenarios, pre-filters not only need to filter particulate impurities such as mud, sand, and rust, but also often need to handle complex fluids containing oily substances, colloids, organic matter, and microorganisms (food grease mixed in due to improper maintenance of secondary water supply tanks, and sticky dirt formed by the long-term accumulation of grease or colloids mixed with rust on the inner walls of old pipes). The impact force of backwash water flow can only remove loose particles from the surface of the filter screen. It cannot effectively remove sludge and colloidal impurities that adhere to the surface of the filter screen and are embedded in the pores. Instead, under the action of reverse water pressure, it will push them further into the depth of the filter screen pores, forming permanent blockage. Existing mechanical scraping structures have obvious cleaning dead zones. At the same time, the scraping components are easily damaged during long-term operation, resulting in incomplete scraping. (When the water contains impurities such as hard welding slag and stones, they are easy to get stuck between the scraper and the core filter components, causing the scraper to break, deform, or even scratch the surface of the core filter body, causing permanent damage to the core filter body, reducing the filtration accuracy or even causing complete failure. Ultimately, the impurities accumulate over time, gradually harden, and breed bacteria and algae, which not only pollute the filtered water quality but also spread to the central area of ​​the core filter body, further reducing the filtration efficiency.) Summary of the Invention

[0003] To solve the above problems, the present invention adopts the following technical solution: a repair device adapted to water purifier filter cartridges, including a valve head, wherein a multi-segment telescopic module is provided on the inner outer edge of the valve head, a cleaning module is provided on the side of the multi-segment telescopic module closer to the ground, and a wear self-inspection module is provided on the side of the cleaning module away from the multi-segment telescopic module. The cleaning module includes: The explosion-proof outer ring is coaxially positioned on the valve head near the ground. The explosion-proof inner ring is coaxially and equally positioned inside the explosion-proof outer ring; There are four cleaning holes, which are staggered in a circumferential gradient on the outer wall of the explosion-proof outer ring and the outer wall of the explosion-proof inner ring; The cleaning tube is assembled onto the inner wall of the cleaning hole using a sealed waterproof ring plug-in snap-fit ​​connection. The flow guide tubes are symmetrically and coaxially distributed inside the cleaning tube; A nylon brush plate is snapped onto the outer port of the guide tube near the valve head axis. An inner arc silicone plate is snapped onto the outer port of the other end of the guide tube; The jet holes are staggered in a circumferential gradient on the outer wall of the nylon brush plate and the inner arc silicone plate.

[0004] Preferably, an inner sleeve is snapped into the middle of the inner wall of the cleaning tube. A tee pipe is snapped into the middle of the inner sleeve and the inner wall of the cleaning tube. The outer wall of one side of the tee pipe is slidably snapped into the guide tube. Sealing rings are slidably snapped into the inner walls of both ends of the inner sleeve. The sealing rings are snapped into the outer walls of the guide tube. Washers are symmetrically snapped into the inner sleeve between the two sealing rings. The washers are slidably snapped into the outer walls of the guide tube. A telescopic spring is snapped into the opposite surfaces of the washers and sealing rings and fitted onto the outer wall of the guide tube. A driven bevel gear is snapped into the outer wall of the end of the cleaning tube away from the nylon brush plate.

[0005] Preferably, the wear self-inspection module includes: A waterproof pipe, in quantity one, is installed with a plug-in snap-fit ​​between the explosion-proof outer ring and the explosion-proof inner ring on the side away from the valve head; Multi-port pipe, with plug-in snap-fit ​​installation in the middle of the waterproof pipe; The sealing gasket rings are symmetrically and slidingly snapped onto the inner wall of the waterproof pipe. The sealing ring is symmetrically snapped onto the inner wall of the waterproof pipe, and the sealing ring is located between the two sealing gasket rings; The air supply tube is inserted through the sealing ring at the center of the shaft, and the air supply tube is slidably snapped together with the sealing ring. The return spring is snapped between the sealing ring and the sealing gasket ring, and the return spring is sleeved on the outer wall of the air passage. The corner shovel is snapped into place at the end of the airway furthest from the sealing ring.

[0006] Preferably, the sealing ring is snapped onto the end face opposite to the sealing gasket ring, and a guide tube is simultaneously slidably snapped onto the outer wall of both the multi-port pipe and the air passage pipe. The connection surfaces of the guide tube and the sealing ring, and the connection surfaces of the guide tube and the multi-port pipe, are connected by sealing films. A single-port valve is snapped onto the axial center of the end of the air passage pipe away from the corner edge. An angle sensing ring is rotatably fitted onto the middle position of the inner wall of the air passage pipe. A positioning ring is snapped onto the end of the inner wall of the air passage pipe away from the single-port valve. A spring plunger is slidably snapped onto the axial center of the positioning ring. An end ring is snapped onto the outer wall of the end of the spring plunger near the single-port valve. A corresponding rod is snapped onto the outer wall of the end ring, and the corresponding rod engages with the spiral groove on the inner surface of the angle sensing ring. A one-way valve pipe is snapped onto the end faces of both the positioning ring and the spring plunger.

[0007] Preferably, a stainless steel filter bottle with a sealing ring is coaxially mounted on the side of the valve head closest to the ground. A valve tube is inserted through the middle of the outer wall of the valve head. One end of the valve tube is fitted with a water inlet via a lead-resistant plastic-coated thread, and the other end of the valve tube is fitted with a water outlet via a lead-resistant plastic-coated thread. A flushing valve is inserted and snapped onto the axial side of the stainless steel filter bottle away from the valve head. A flushing knob is inserted and rotated onto the outer wall of the flushing valve. A wall-mounted bracket is detachably snapped onto the outer wall of the stainless steel filter bottle via bolts. A stainless steel filter screen is inserted and snapped onto the middle of the bottom wall of the stainless steel filter bottle.

[0008] Preferably, the multi-segment telescopic module includes: The motor mounting bracket is detachably and snap-fitted onto the outer wall of the valve head on the side away from the flushing valve using bolts; A stepper motor is snapped onto the inner wall of the horizontal section of the motor mounting bracket on the side away from the valve head; in addition, the output end of the stepper motor passes through the valve head. The encapsulation substrate is snapped onto the inner wall of the valve head at the end away from the stainless steel filter bottle. The spline rod is rotatably mounted on the outer edge of the packaging substrate, and the spline rod is synchronously snapped into the motor output end for assembly. The double-threaded cylinder is slidably snapped onto the outer wall of the splined rod; in addition, threaded grooves are provided on the outer wall of the double-threaded cylinder and on the inner wall at the end away from the stepper motor. The guide tube is snapped onto the end face of the packaging substrate, and the inner wall of the guide tube away from the stepper motor has a threaded groove that matches the thread of the double-turn threaded cylinder. Angle cylinder, slidably snapped onto the outer wall of the guide cylinder; Angle screw is rotatably mounted on the center of the splined rod shaft, and the angle screw is threadedly fitted to the double-threaded cylinder, and the angle screw is snap-fitted to the angle cylinder.

[0009] Preferably, a lifting ring coaxially aligned with the valve head is snapped onto the end of the angle cylinder away from the stepper motor. A flushing motor is snapped onto the end face of the lifting ring away from the angle cylinder. A convex engagement ring tube is rotatably mounted on the end face of the lifting ring away from the angle cylinder. A drive gear is snapped onto the output end of the flushing motor. A driven gear meshing with the drive gear is snapped onto the outer wall of the convex engagement ring tube. An incomplete gear rotatably assembled with the outer wall of the convex engagement ring tube is snapped onto the end face of the driven gear away from the angle cylinder. A planetary gear meshing with the incomplete gear is provided between the convex engagement ring tube and the lifting ring.

[0010] Preferably, an I-shaped vertical rod is installed in a rotatable, plug-in configuration on the annular surface of the convex ring tube away from the corner tube, located between the explosion-proof outer ring and the explosion-proof inner ring. Inside the explosion-proof outer ring, corner rings are arranged in an array along its axis, corresponding one-to-one in number and position to the cleaning holes. Angle beads are snapped onto the outer wall of the corner rings. An incomplete bevel gear is coaxially arranged on the outer ring of the corner rings, rotatably fitted to the inner wall of the explosion-proof outer ring. Furthermore, the incomplete bevel gear meshes with the driven bevel gear, and the inner wall of the incomplete bevel gear has a serpentine groove adapted to match the angle beads. Additionally, the outer wall of the I-shaped vertical rod has a sliding snap-fit ​​connection with the spiral groove and straight groove on the inner wall of the corner ring's connecting surface, and the corner rings are elastically connected to the inner wall of the explosion-proof outer ring by a spring.

[0011] Preferably, the vertical distance between the flushing motor and the surface of the convex ring tube away from the corner cylinder is greater than the vertical distance between the surface of the planetary gear near the corner cylinder and the surface of the convex ring tube away from the corner cylinder. The vertical cross-sectional shape of the corner shovel is consistent with the inner chamfer of the bottom wall of the stainless steel filter bottle and the outer chamfer of the stainless steel filter screen near the flushing valve. The cross-section of the corner shovel away from the waterproof pipe is symmetrical hourglass-shaped. There is a vertical distance between the end face of the corner shovel near the flushing valve and the surface of the explosion-proof outer ring near the flushing valve.

[0012] A targeted deep cleaning method for the internal filter screen, inner wall, and bottom corners of the water purifier is employed, using a repair device adapted to the water purifier filter cartridge. The specific steps are as follows: S1: First, by arranging a spline rod, double-threaded cylinder, guide cylinder, angle cylinder and angle screw in the limited height space of the valve head, a multi-stage stroke extension mode is constructed to ensure that the cleaning module can perform full-coverage cleaning of the inner wall of the stainless steel filter bottle and the outer wall of the stainless steel filter screen when it moves axially. S2: Next, the motor outputs a stable rotational torque to the drive gear. The drive gear synchronously controls the driven gear to drive the convex ring tube to rotate at a predetermined speed. The explosion-proof outer ring and explosion-proof inner ring follow the synchronous movement of the cleaning tube, realizing the full circumferential repetitive rotation of the nylon brush plate and the inner arc silicone plate. Through the relative mechanical interaction between the nylon brush plate on the outer surface of the stainless steel filter screen and the inner arc silicone plate and the inner wall of the stainless steel filter bottle, stubborn stains are cleaned. The circumferential gradient layout of the cleaning holes macroscopically realizes the overall rotational relative helicality of the nylon brush plate and the inner arc silicone plate, further enhancing the fluid kinetic energy, assisting the stains to move outward from the axis, and improving the cleaning effect. During this process, through the intermittent meshing between the incomplete gear and the driven gear, the nylon brush plate and the inner arc silicone plate rotate one revolution. The incomplete gear controls the planetary gear to rotate one-third of a circle within a predetermined cycle. At the instant the planetary gear rotates, the angle ring, under the dual action of the explosion-proof outer ring support and the engagement of the threaded pair on the outer wall of the I-shaped vertical rod, forces the axial movement of the angle bead to synchronously interact with the snake groove on the inner wall of the incomplete bevel gear. This continues until the incomplete bevel gear meshes with the driven bevel gear after the I-shaped vertical rod has rotated multiple times. This intermittently changes the relative angle between the cleaning tube and the cleaning hole, ensuring the mechanical operation cycle of the nylon brush plate and the inner arc silicone plate while dynamically adjusting the operating angle between the nylon brush plate and the inner arc silicone plate and the corresponding working surface, thus diversifying and enriching the cleaning methods. Macro cleaning layout: By relatively changing the relative working angle of the nylon brush plate and the inner arc silicone plate, the "spiral" tangential angle of the fluid in the area of ​​the inner wall of the stainless steel filter bottle and the outer wall of the stainless steel filter screen can be adjusted throughout the day. Further micro-cleaning design: By opening jet holes with a circumferential gradient staggered layout on the outer wall of the nylon brush plate and the inner arc silicone plate, the "spiral field energy" of the fluid around them is enhanced during actual operation. S3: Finally, the waterproof pipe drives the corner scraper to move mechanically with the bottom chamfered surface of the stainless steel filter bottle and the outer chamfered surface of the stainless steel filter screen in real time to scrape off the attached dirt. Furthermore, gas is pumped through a multi-port pipe into the area between the corner shovel and the corresponding working surface via a single-port valve and a one-way valve. When there is no wear gap on the working surface of the corner shovel, there is no relative interactive movement between the spiral grooves on the inner wall of the sensing rings of the same position rod and the same angle. When wear occurs, the gas continues to be lost, the spring plunger loses the gas reverse force, gradually moves towards the single-port valve, and continuously causes relative movement between the sensing rings of the same position rod and the same angle until the angle exceeds the predetermined threshold (temporary gap pressure relief scenario for filtering impurities), reminding the operator to inspect the corresponding corner shovel.

[0013] The present invention has the following beneficial effects: 1. This invention provides relatively flexible shearing force through a nylon brush plate and an inner arc silicone plate to physically peel off oil stains adhering to the filter wall. At the macroscopic level, the spiral distribution and circumferential rotation of the nylon brush plate and the inner arc silicone plate form an overall primary spiral flow field. At the microscopic level, the jet holes arranged in a circumferential gradient staggered pattern on the nylon brush plate and the silicone plate generate local tangential jets, creating a double spiral flow field shearing force that can effectively flush out colloidal impurities embedded in the filter screen pores, while avoiding the positive pressure effect of backwashing.

[0014] 2. This invention uses an intermittent variable angle transmission mechanism between incomplete gears, planetary gears and bevel gears to periodically change the working angle of the nylon brush plate and the inner arc silicone plate, so that the hard impurities stuck in the plate will automatically fall off during the angle change process, thus avoiding damage to the core components caused by long-term jamming.

[0015] 3. When the corner scraper wears and gaps appear, the gas continues to leak. The spring plunger gradually moves due to the loss of gas reverse force, triggering the relative movement of the position rod and the angle sensing ring. When the wear exceeds the preset threshold, the angle sensing ring triggers a mechanical warning signal to remind the user to replace the corner scraper in time. This invention constructs a pure mechanical wear self-monitoring and warning system to avoid cleaning failure and reduce the accumulation of heavy impurities in the dead corner area at the bottom of the stainless steel filter bottle. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0017] Figure 2 This is an appendix to the present invention. Figure 1 Front view of the structure.

[0018] Figure 3 This is a three-dimensional cross-sectional view of the internal structure of the valve body and stainless steel filter bottle of the present invention.

[0019] Figure 4 This is an appendix to the present invention. Figure 3 A magnified schematic diagram of the local structure at point A in the middle.

[0020] Figure 5 This is an appendix to the present invention. Figure 3 Comparison of partial unfolding of the multi-segment telescopic module.

[0021] Figure 6 This is a three-dimensional view showing the further structure of the multi-segment telescopic module in this invention.

[0022] Figure 7 This is a three-dimensional view of the convex ring tube and its partial structure of the present invention.

[0023] Figure 8 This is an appendix to the present invention. Figure 7 Enlarged schematic diagram of the local structure at point B.

[0024] Figure 9 This is a plan view of the internal structure of the cleaning tube of the present invention.

[0025] Figure 10 This is a three-dimensional cross-sectional view of the internal structure of the waterproof pipe of the present invention (with corner edges removed).

[0026] Figure 11 This is an appendix to the present invention. Figure 10 Enlarged schematic diagram of the local structure at point C.

[0027] Figure 12 This is a three-dimensional structural diagram of the corner shovel in this invention.

[0028] The diagram is labeled as follows: 1. Valve head; 2. Multi-section telescopic module; 3. Cleaning module; 4. Wear self-inspection module. 11. Stainless steel filter bottle; 12. Valve pipe; 13. Water inlet interface; 14. Water outlet connector; 15. Flushing valve; 16. Flushing knob; 17. Wall-mounted bracket; 18. Stainless steel filter screen; 21. Motor mounting bracket; 22. Stepper motor; 23. Packaging substrate; 24. Spline rod; 25. Double-loop threaded cylinder; 26. Guide cylinder; 27. Angle cylinder; 28. Angle screw; 211. Lifting ring; 212. Flushing motor; 213. Convex engagement ring tube; 214. Drive gear; 215. Driven gear; 216. Incomplete gear; 217. Planetary gear; 221. I-shaped plumb bob; 222. Angle ring; 223. Angle bead; 224. Incomplete bevel gear; 225. Snake groove; 31. Explosion-proof outer ring; 32. Explosion-proof inner ring; 33. Cleaning hole; 34. Cleaning pipe; 35. Guide pipe; 36. Nylon brush plate; 37. Inner arc silicone plate; 38. Jet hole; 311. Inner sleeve; 312. Tee; 313. Sealing ring; 314. Washer; 315. Telescopic spring; 316. Driven bevel gear; 41. Waterproof pipe; 42. Multi-port pipe; 43. Sealing gasket ring; 44. Sealing ring; 45. Air supply pipe; 46. Return spring; 47. Corner scraper; 411. Conductor tube; 412. Single-port valve; 413. Angle sensing ring; 414. Positioning ring; 415. Spring plunger; 416. End ring; 417. Corresponding rod; 418. Check valve tube. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0030] It should be noted that the terms "vertical," "horizontal," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0031] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0032] Reference Figure 1 , Figure 2 and Figure 3 It is known that a repair device for water purifier filter cartridges includes a valve head 1, a multi-segment telescopic module 2 is provided on the inner outer edge of the valve head 1, a cleaning module 3 is provided on the side of the multi-segment telescopic module 2 near the ground, and a wear self-inspection module 4 is provided on the side of the cleaning module 3 away from the multi-segment telescopic module 2. Reference Figure 1 , Figure 2 and Figure 3 It can be seen that a stainless steel filter bottle 11 with a sealing ring is coaxially installed on the side of the valve head 1 near the ground. A valve tube 12 is installed through the middle of the outer wall of the valve head 1. One end of the valve tube 12 is fitted with a water inlet 13 through a lead-resistant plastic-coated thread. The other end of the valve tube 12 is fitted with a water outlet 14 through a lead-resistant plastic-coated thread. A flushing valve 15 is installed in a plug-in snap-fit ​​at the axial end of the stainless steel filter bottle 11 away from the valve head 1. A flushing knob 16 is installed in a plug-in rotatable fit on the outer wall of the flushing valve 15. A wall-mounted bracket 17 is installed in a detachable snap-fit ​​on the outer wall of the stainless steel filter bottle 11 through bolts. A stainless steel filter screen 18 is installed in a plug-in snap-fit ​​at the middle of the bottom wall of the stainless steel filter bottle 11. Reference Figure 1 , Figure 3 and Figure 4 It is known that the multi-segment telescopic module 2 includes: a motor mounting bracket 21, which is detachably bolted and snapped onto the outer wall of the valve head 1 on the side away from the flushing valve 15; a stepper motor 22, which is snapped onto the inner wall of the horizontal section of the motor mounting bracket 21 on the side away from the valve head 1; in addition, the output end of the stepper motor 22 passes through the valve head 1; a packaging substrate 23, which is snapped onto the inner wall of the valve head 1 on the side away from the stainless steel filter bottle 11; a spline rod 24, which is rotatably mounted on the outer edge of the packaging substrate 23, and the spline rod 24 is snapped onto the output end of the stepper motor 22; and a double-threaded cylinder 25, which is slidably snapped onto the outer wall. The outer wall of the spline rod 24 is mounted on the spline rod 24. In addition, the outer wall of the double-threaded cylinder 25 and the inner wall of the end away from the stepper motor 22 are both provided with threaded grooves. The guide cylinder 26 is snapped onto the end face of the packaging substrate 23, and the inner wall of the guide cylinder 26 away from the stepper motor 22 is provided with a threaded groove that is threaded to the double-threaded cylinder 25. The angle cylinder 27 is slidably snapped onto the outer wall of the guide cylinder 26. The angle screw 28 is rotatably mounted at the axis of the spline rod 24, and the angle screw 28 is threadedly fitted to the double-threaded cylinder 25, and the angle screw 28 is snapped onto the angle cylinder 27. Reference Figure 5and Figure 6 It can be seen that a lifting ring 211, coaxial with the valve head 1, is snapped onto the end of the angle cylinder 27 away from the stepper motor 22. A flushing motor 212 is snapped onto the end face of the lifting ring 211 away from the angle cylinder 27. A convex ring tube 213 is rotatably installed on the end face of the lifting ring 211 away from the angle cylinder 27. A drive gear 214 is snapped onto the output end of the flushing motor 212. A driven gear 215 meshing with the drive gear 214 is snapped onto the outer wall of the convex ring tube 213. An incomplete gear 216 rotatably assembled with the outer wall of the convex ring tube 213 is snapped onto the end face of the driven gear 215 away from the angle cylinder 27. A planetary gear 217 meshing with the incomplete gear 216 is provided between the convex ring tube 213 and the lifting ring 211. The vertical distance between the flushing motor 212 and the surface of the convex ring tube 213 away from the angle cylinder 27 is greater than the vertical distance between the surface of the planetary gear 217 near the angle cylinder 27 and the surface of the convex ring tube 213 away from the angle cylinder 27.

[0033] Simple pre-filter filtration steps: The fluid to be treated enters from the inlet 13 and flows into the independent inlet channel inside the valve head 1 through the valve pipe 12; Water flows into the inner cavity of the stainless steel filter bottle 11 from the independent inlet channel inside the valve head 1 (not shown in the figure), filling the annular raw water cavity between the inner wall of the stainless steel filter bottle 11 and the outer wall of the stainless steel filter screen 18. Fluid permeates radially from the outside of the stainless steel filter screen 18, and impurities in the water, such as mud, rust, welding slag, and insect eggs, with a particle size larger than that of the stainless steel filter screen 18, are trapped on the outer wall of the stainless steel filter screen 18. The filtered water enters the central water purification chamber inside the stainless steel filter screen 18, flows upward back to the independent water outlet channel inside the valve head 1, and finally flows out through the water outlet connector 14 at the other end of the valve pipe 12, and is delivered to the downstream kitchen water equipment. Valve pipe 12: It integrates inlet and outlet channels, adopts lead-resistant plastic coating process to avoid heavy metal leaching, and serves as the coaxial connection reference between valve head 1 and stainless steel filter bottle 11 to ensure sealing accuracy. Food-grade sealing ring (supplementary explanation): Made of silicone rubber, it seals all mating gaps between valve head 1 and stainless steel filter bottle 11, valve tube 12 and connector, preventing water leakage and isolating different metals from contact to avoid electrochemical corrosion. Flushing valve 15 drains sewage: After cleaning, the flushing valve 15 opens automatically, and the wastewater in the stainless steel filter bottle 11, carrying all the scraped-off impurities, is quickly discharged from the drain port. High-flow sewage discharge continues for a preset time to thoroughly remove all impurities and prevent secondary sedimentation; When the flushing valve 15 is closed, the stepper motor 22 rotates in the opposite direction, driving the multi-segment telescopic module 2 to reset, while the cleaning module 3 returns to its initial position inside the valve head 1.

[0034] Reference Figure 3 , Figure 5 , Figure 7 and Figure 9 As can be seen, the cleaning module 3 includes: an explosion-proof outer ring 31, coaxially disposed on the side of the valve head 1 near the ground; an explosion-proof inner ring 32, coaxially disposed inside the explosion-proof outer ring 31; four cleaning holes 33, which are circumferentially gradient-staggered on the outer walls of the explosion-proof outer ring 31 and the explosion-proof inner ring 32; a cleaning tube 34, which is assembled on the inner wall of the cleaning hole 33 by a sealing waterproof ring plug-in snap-fit; a guide tube 35, which is symmetrically distributed coaxially inside the cleaning tube 34; a nylon brush plate 36, which is snap-fitted onto the outer port of the guide tube 35 on the side near the axis of the valve head 1; an inner arc silicone plate 37, which is snap-fitted onto the outer port of the other end of the guide tube 35; and jet holes 38, which are circumferentially gradient-staggered on the outer walls of the nylon brush plate 36 and the inner arc silicone plate 37. Reference Figure 3 , Figure 6 and Figure 9 It is known that an inner sleeve 311 is snapped into the middle of the inner wall of the cleaning tube 34. A three-way pipe 312 is snapped into the middle of the inner wall of the cleaning tube 34 and the inner sleeve 311. The outer wall of one side of the three-way pipe 312 is slidably snapped into the guide tube 35. Sealing rings 313 are slidably snapped into the inner walls of both ends of the inner sleeve 311. Sealing rings 313 are snapped into the outer wall of the guide tube 35. Washers 314 are symmetrically snapped into the inner sleeve 311 between the two sealing rings 313. Washers 314 are slidably snapped into the outer wall of the guide tube 35. A telescopic spring 315 is snapped into the opposite face of the washer 314 and the sealing ring 313 and is sleeved on the outer wall of the guide tube 35. A driven bevel gear 316 is snapped into the outer wall of the end of the cleaning tube 34 away from the nylon brush plate 36. Reference Figure 6 , Figure 7 and Figure 8It is known that the convex ring tube 213 is rotatably fitted with an I-shaped vertical rod 221 located between the explosion-proof outer ring 31 and the explosion-proof inner ring 32 on the annular surface away from the corner tube 27. The explosion-proof outer ring 31 has corner rings 222 arranged in an array along its axis, corresponding one-to-one in number and position to the cleaning holes 33. Angle beads 223 are snapped onto the outer wall of the corner rings 222. The outer ring of the corner rings 222 is coaxially provided with an incomplete bevel gear 224 that is rotatably fitted with the inner wall of the explosion-proof outer ring 31. In addition, the incomplete bevel gear 224 meshes with the driven bevel gear 316, and the inner wall of the incomplete bevel gear 224 has a snake groove 225 that matches the angle bevel 223. Furthermore, the outer wall of the I-shaped vertical rod 221 has a sliding snap-fit ​​connection with the spiral groove and straight groove of the inner wall of the connecting surface of the corner ring 222, and the corner ring 222 is elastically connected to the inner wall of the explosion-proof outer ring 31 by a spring.

[0035] Fully automatic cleaning process: Pre-pneumatic prerequisite: When the pressure difference across the filter reaches a preset threshold or the set cleaning cycle is reached; Start the stepper motor 22 (in specific implementation, the motor mounting bracket 21 provides a mounting base and physical protection for the stepper motor 22 on the one hand, and a connection base to the external environment on the other hand), and output torque to drive the coaxial spline rod 24 to rotate; The spline rod 24 engages with the internal spline of the double-threaded cylinder 25 via the external spline, driving the double-threaded cylinder 25 to rotate synchronously; the double-threaded cylinder 25 simultaneously forms a double threaded transmission pair with the external thread on the inner wall of the guide cylinder 26 and the external thread of the angle screw 28. Under the axial constraint of the guide cylinder 26 (fixed state), the double-threaded cylinder 25 drives the angle cylinder 27 and the angle screw 28 to extend synchronously away from the stepper motor 22, and finally drives the cleaning module 3 installed on the lifting ring 211 to move to the bottom of the stainless steel filter screen 18, so as to achieve full axial travel coverage from the bottom of the valve head 1 to the bottom of the stainless steel filter bottle 11. Stepper motor 22 stops and self-locks, maintaining the axial position of cleaning module 3 in preparation for circumferential cleaning; Furthermore, the flushing motor 212 starts, and the output torque drives the drive gear 214 to rotate; The drive gear 214 meshes and drives the driven gear 215 to rotate. The driven gear 215 drives the coaxial fixed convex ring tube 213 to rotate synchronously. The convex ring tube 213 drives the cleaning tube 34, nylon brush plate 36 and inner arc silicone plate 37 to rotate stably in the circumferential direction. The nylon brush plate 36 rotates tightly against the outer wall of the stainless steel filter screen 18, and the inner arc silicone plate 37 rotates tightly against the inner wall of the stainless steel filter bottle 11. By scraping away the attached mud, rust, and sticky sludge through relatively flexible adaptive shearing force, the two working surfaces are cleaned simultaneously (in specific implementation, there is a telescopic spring 315 between the nylon brush plate 36, the inner arc silicone plate 37 and the cleaning tube 34 to provide flexible adaptive relative force adjustment). At the same time, the driven gear 215 drives the coaxial fixed incomplete gear 216 to rotate synchronously. The incomplete gear 216 and the planetary gear 217 form an intermittent meshing transmission. For each rotation, the planetary gear 217 rotates only 1 / N circumference (N is the tooth ratio of the incomplete gear 216). Planetary gear 217 is driven by a transmission chain consisting of I-shaped vertical rod 221, angle ring 222, angle ball 223, incomplete bevel gear 224, and driven bevel gear 316. (In specific implementation, the I-shaped vertical rod 221 rotates, at which time there is a "spiral groove cam structure" between the angle ring 222 and the I-shaped vertical rod 221. The angle ring 222 moves along the axis of the explosion-proof outer ring 31 and pulls the "assembly spring" between it and the explosion-proof outer ring 31 until the angle ball 223 and the snake groove 225 achieve complete interaction. The angle ball 223 returns to the straight groove (not shown in the figure) that connects the beginning and end of the snake groove 225.) Initially, the aforementioned corner ring 222 and I-shaped vertical rod 221 smoothly enter the straight groove through the spiral groove where they are assembled, and the aforementioned assembly spring provides a reset base for the corner ring 222. Repeatedly, the rotation angle of the incomplete bevel gear 224 is continuously changed until the incomplete bevel gear 224 meshes with the driven bevel gear 316. The rotation angle of the cleaning tube 34 is periodically changed, thereby dynamically adjusting the contact angle between the nylon brush plate 36 and the inner arc silicone plate 37 and the working surface, thus building a gradient adjustment of the outer spiral field. During the cleaning process, water is sprayed out through the jet holes 38 arranged in a circumferential gradient staggered layout on the nylon brush plate 36 and the inner arc silicone plate 37 (in specific implementation, the non-direct working surface of the nylon brush plate 36 and the inner arc silicone plate 37 can be cylindrical, and the jet angle of the jet hole 38 conforms to the normal tangent of the spiral line, so as to ensure the functional stability of the spiral field around the nylon brush plate 36 and the inner arc silicone plate 37), forming a local spiral flow field, flushing the colloidal impurities embedded in the filter screen pores, and assisting mechanical scraping to improve the cleaning effect; Special note: The incomplete gear 216 intermittent variable angle transmission mechanism enables the nylon brush plate 36 and the inner arc silicone plate 37 to perform periodic variable angle scraping. On the one hand, it allows hard impurities stuck in the cleaning gap to automatically fall off during the angle change process, avoiding the breakage of the nylon brush plate 36 and the inner arc silicone plate 37 and the scratching of the stainless steel filter screen 18 caused by long-term jamming; on the other hand, it changes the scraping direction, improving the removal efficiency of stubborn sticky dirt. Furthermore, in specific implementation, high-pressure gas can be introduced into the three-way pipe 312 through an external air pump (built in between the lifting ring 211 and the convex ring pipe 213) and a corresponding stable air path. A one-way flow valve is built into the interaction area between the three-way pipe 312 and the guide pipe 35 (only allowing gas to flow out through the jet hole 38, preventing fluid from entering the jet hole 38 (or the jet hole 38 is a one-way jet nozzle)).

[0036] Reference Figure 3 , Figure 10 , Figure 11 and Figure 12 It is known that the wear self-inspection module 4 includes: a waterproof pipe 41, which is installed in a plug-in manner between the explosion-proof outer ring 31 and the explosion-proof inner ring 32 on the side away from the valve head 1; a multi-port pipe 42, which is installed in the middle of the waterproof pipe 41 in a plug-in manner; a sealing gasket ring 43, which is symmetrically and slidably installed on the inner wall of the waterproof pipe 41; a sealing ring 44, which is symmetrically and slidably installed on the inner wall of the waterproof pipe 41, and the sealing ring 44 is located between the two sealing gasket rings 43; an air passage pipe 45, which is installed through the sealing gasket ring 43 at the axis, and the air passage pipe 45 is slidably and slidably assembled with the sealing ring 44; a return spring 46, which is installed between the opposite surfaces of the sealing ring 44 and the sealing gasket ring 43, and the return spring 46 is sleeved on the outer wall of the air passage pipe 45; and a corner scraper 47, which is installed on the end of the air passage pipe 45 away from the sealing ring 44. Reference Figure 10 and Figure 11 It can be seen that a guide pipe 411 is snapped onto the end face of the sealing ring 44 away from the sealing gasket ring 43, and is simultaneously slidably snapped onto the outer wall of both the multi-port pipe 42 and the air passage pipe 45. The connection surfaces of the guide pipe 411 and the sealing ring 44, and the connection surfaces of the guide pipe 411 and the multi-port pipe 42, are connected by sealing films. A single-port valve 412 is snapped onto the axial center of the end of the air passage pipe 45 away from the corner scraper 47. An angle sensing ring 413 is rotatably fitted onto the middle position of the inner wall of the air passage pipe 45. A positioning ring 414 is snapped onto the inner wall of 45 away from the single-port valve 412. A spring plunger 415 is slidably snapped onto the center of the positioning ring 414. An end ring 416 is snapped onto the outer wall of the spring plunger 415 near the single-port valve 412. A corresponding rod 417 is snapped onto the outer wall of the end ring 416. The corresponding rod 417 engages with the spiral groove on the inner surface of the sensing ring 413 at the same angle. A one-way valve tube 418 is plugged into the end faces of both the positioning ring 414 and the spring plunger 415. The vertical cross-section shape of the corner shovel 47 is consistent with the inner chamfer of the bottom wall of the stainless steel filter bottle 11 and the outer chamfer of the stainless steel filter screen 18 near the flushing valve 15. The cross-section of the corner shovel 47 away from the waterproof pipe 41 is symmetrical hourglass-shaped. The end face of the corner shovel 47 near the flushing valve 15 has a vertical distance from the surface of the explosion-proof outer ring 31 near the flushing valve 15.

[0037] The corner scraper 47 performs targeted mechanical scraping of the chamfered surfaces of the stainless steel filter screen 18 and the stainless steel filter bottle 11 near the flushing valve 15. The waterproof tube 41 rotates synchronously with the aforementioned cleaning module 3, enabling the corner scraper 47 to repeatedly and mechanically scrape the aforementioned "dead corner area". Furthermore, gas (similarly achieved through the aforementioned gas supply peripherals) is pumped through the multi-port pipe 42 into the space between the corner shovel 47 and the corresponding working surface via the single-port valve 412 and the one-way valve pipe 418 (in specific implementation, the one-way valve pipes 418 are connected by a flexible hose). When no wear gaps appear on the working surface of the corner shovel 47, no relative interactive movement occurs between the spiral grooves on the inner wall of the sensing ring 413 at the same angle of the corresponding rod 417. When wear occurs, gas is continuously lost, the spring plunger 415 loses the gas reverse force, and gradually moves towards the single-port valve 412. The relative movement between the corresponding rod 417 and the angle sensing ring 413 continues until the angle exceeds the predetermined threshold (in the scenario of temporary gap pressure relief due to impurity interaction, due to the presence of the return spring 46, in specific implementation, there may be impurities that reverse-pressure the corner shovel 47, causing it to compress the return spring 46, resulting in a temporary gap between the corner shovel 47 and the working surface, leading to a decrease in air pressure. This can be achieved by pumping gas to maintain stable air pressure within a predetermined cycle, thereby filtering the aforementioned "special case" and increasing the false judgment threshold). This will remind the operator to inspect the corresponding corner shovel 47.

[0038] The circuits and controls involved in this invention are all existing technologies and will not be described in detail here.

[0039] The above are merely embodiments of the present invention and do not limit the scope of the patent. Any equivalent structural or procedural transformations made based on the description and drawings of the present invention, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of the present invention.

Claims

1. A repair device adapted to a water purifier filter cartridge, comprising a valve head (1), characterized in that: The valve head (1) has multiple telescopic modules (2) inside its outer edge. A cleaning module (3) is provided on the side of the multiple telescopic modules (2) that is close to the ground. A wear self-inspection module (4) is provided on the side of the cleaning module (3) that is away from the multiple telescopic modules (2). The cleaning module (3) includes: An explosion-proof outer ring (31) is coaxially positioned on the side of the valve head (1) near the ground. The explosion-proof inner ring (32) is coaxially and equally positioned inside the explosion-proof outer ring (31); There are four cleaning holes (33), which are opened in a circumferential gradient staggered on the outer wall of the explosion-proof outer ring (31) and the explosion-proof inner ring (32); The cleaning tube (34) is fitted onto the inner wall of the cleaning hole (33) by a sealed waterproof ring plug-in snap-fit. The guide tube (35) is symmetrically and coaxially distributed inside the cleaning tube (34); Nylon brush plate (36) is snapped onto the outer port of the guide tube (35) on the side near the axis of the valve head (1); The inner arc silicone plate (37) is snapped onto the outer port of the other end guide tube (35); The jet holes (38) are opened in a circumferential gradient stagger on the outer wall of the nylon brush plate (36) and the inner arc silicone plate (37).

2. The repair device for a water purifier filter cartridge according to claim 1, characterized in that: An inner sleeve (311) is snapped into the middle of the inner wall of the cleaning tube (34). A tee pipe (312) is snapped into the middle of the inner wall of the cleaning tube (34) and the inner sleeve (311). The outer wall of one side of the tee pipe (312) is slidably snapped into the guide tube (35). Sealing rings (313) are slidably snapped into the inner walls of both ends of the inner sleeve (311). The sealing rings (313) are snapped into the outer wall of the guide tube (35). The inner sleeve (311) is symmetrically fitted with a washer (314) located between the two sealing rings (313), and the washer (314) is slidably fitted with the outer wall of the guide tube (35). The washer (314) and the sealing ring (313) are fitted together with a telescopic spring (315) sleeved on the outer wall of the guide tube (35). The outer wall of the cleaning tube (34) away from the nylon brush plate (36) is fitted with a driven bevel gear (316).

3. The repair device for a water purifier filter cartridge according to claim 2, characterized in that: The wear self-test module (4) includes: A waterproof pipe (41) is provided, and is installed in a plug-in type between the explosion-proof outer ring (31) and the explosion-proof inner ring (32) on the side away from the valve head (1); The multi-port pipe (42) is installed in the middle of the waterproof pipe (41) using a plug-in snap-fit ​​connection; The sealing gasket ring (43) is symmetrically and slidingly snapped onto the inner wall of the waterproof pipe (41); The sealing ring (44) is symmetrically snapped onto the inner wall of the waterproof pipe (41), and the sealing ring (44) is located between the two sealing gaskets (43); The air supply tube (45) is installed in a through-type insertion at the center of the sealing gasket ring (43), and the air supply tube (45) is slidably snapped together with the sealing ring (44); The return spring (46) is snapped between the opposite surfaces of the sealing ring (44) and the sealing gasket ring (43), and the return spring (46) is sleeved on the outer wall of the air passage (45); The corner shovel (47) is snapped into place at the end of the air pipe (45) away from the sealing ring (44).

4. The repair device for a water purifier filter cartridge according to claim 3, characterized in that: The sealing ring (44) is fitted with a guide pipe (411) on the side opposite to the sealing gasket ring (43), which is slidably fitted to the outer wall of both the multi-port pipe (42) and the air pipe (45). The connecting surfaces of the guide pipe (411) and the sealing ring (44) and the guide pipe (411) and the multi-port pipe (42) are connected by sealing films. A single-port valve (412) is inserted and fitted at the axial center of the end of the air pipe (45) away from the corner shovel (47). An angle sensing ring (413) is rotatably fitted at the middle position of the inner wall of the air pipe (45). 5) A positioning ring (414) is snapped onto the end of the inner wall away from the single-port valve (412). A spring plunger (415) is slidably snapped onto the center of the positioning ring (414). An end ring (416) is snapped onto the outer wall of the end of the spring plunger (415) near the single-port valve (412). A corresponding rod (417) is snapped onto the outer wall of the end ring (416). The corresponding rod (417) engages with the spiral groove on the inner surface of the sensing ring (413) at the same angle. A one-way valve tube (418) is plugged into the end face of both the positioning ring (414) and the spring plunger (415).

5. The repair device for a water purifier filter cartridge according to claim 4, characterized in that: The valve head (1) is coaxially mounted with a stainless steel filter bottle (11) sealed with a sealing ring on the side closest to the ground. A valve tube (12) is inserted through the middle of the outer wall of the valve head (1). One end of the valve tube (12) is fitted with a water inlet (13) through a lead-resistant plastic-coated thread. The other end of the valve tube (12) is fitted with a water outlet connector (14) through a lead-resistant plastic-coated thread. A flushing valve (15) is inserted and snapped onto the axial side of the stainless steel filter bottle (11) away from the valve head (1). A flushing knob (16) is inserted and rotated onto the outer wall of the flushing valve (15). A wall-mounted bracket (17) is detachably snapped onto the outer wall of the stainless steel filter bottle (11) with bolts. A stainless steel filter screen (18) is inserted and snapped onto the middle of the bottom wall of the stainless steel filter bottle (11).

6. The repair device for a water purifier filter cartridge according to claim 5, characterized in that: The multi-segment telescopic module (2) includes: The motor mounting bracket (21) is detachably bolted and snapped onto the outer wall of the valve head (1) on the side away from the flushing valve (15); A stepper motor (22) is snapped onto the inner wall of the horizontal section of the motor mounting bracket (21) away from the valve head (1); in addition, the output end of the stepper motor (22) passes through the valve head (1). The encapsulation substrate (23) is snapped onto the inner wall of the valve head (1) away from the stainless steel filter bottle (11); The spline rod (24) is rotatably mounted on the outer edge of the packaging substrate (23), and the spline rod (24) is synchronously connected to the output end of the motor (22). The double-threaded cylinder (25) is slidably snapped onto the outer wall of the spline rod (24); in addition, threaded grooves are provided on the outer wall of the double-threaded cylinder (25) and on the inner wall of the end away from the stepper motor (22); The guide tube (26) is snapped onto the end face of the packaging substrate (23), and the inner wall of the guide tube (26) away from the stepper motor (22) has a threaded groove that is threaded to match the double-loop threaded tube (25); Angle tube (27) is slidably snapped onto the outer wall of guide tube (26); Angle screw (28) is rotatably mounted on the axis of spline rod (24), and the angle screw (28) is threadedly fitted with the double-ring threaded cylinder (25), and the angle screw (28) is snap-fitted with the angle cylinder (27).

7. The repair device for a water purifier filter cartridge according to claim 6, characterized in that: The angle cylinder (27) is attached to a lifting ring (211) coaxial with the valve head (1) at the end away from the stepper motor (22). A flushing motor (212) is attached to the end face of the lifting ring (211) away from the angle cylinder (27). A convex ring tube (213) is rotatably mounted on the end face of the lifting ring (211) away from the angle cylinder (27). A drive gear (214) is attached to the output end of the flushing motor (212). A driven gear (215) meshing with the drive gear (214) is attached to the outer wall of the convex ring tube (213). An incomplete gear (216) rotatably assembled with the outer wall of the convex ring tube (213) is attached to the end face of the driven gear (215) away from the angle cylinder (27). A planetary gear (217) meshing with the incomplete gear (216) is provided between the convex ring tube (213) and the lifting ring (211).

8. The repair device for a water purifier filter cartridge according to claim 7, characterized in that: The convex ring tube (213) is fitted with an I-shaped vertical rod (221) on the side away from the corner tube (27) in a rotatable plug-in manner. It is located between the explosion-proof outer ring (31) and the explosion-proof inner ring (32). Inside the explosion-proof outer ring (31), corner rings (222) are arranged in an array along its axis, corresponding one-to-one in number and position to the cleaning holes (33). Angle beads (223) are snapped onto the outer wall of the corner rings (222). The outer ring of the corner rings (222) is coaxially arranged with the inner wall of the explosion-proof outer ring (31) rotating. The incomplete bevel gear (224) is installed in conjunction with the driven bevel gear (316), and the inner wall of the incomplete bevel gear (224) has a serpentine groove (225) that matches the bevel ball (223); in addition, the outer wall of the I-shaped vertical rod (221) has a sliding snap-fit ​​connection with the spiral groove and straight groove of the inner wall of the connecting surface of the corner ring (222), and the corner ring (222) is elastically connected to the inner wall of the explosion-proof outer ring (31) by a spring.

9. A repair device for a water purifier filter cartridge according to claim 8, characterized in that: The vertical distance between the flushing motor (212) and the surface of the convex ring tube (213) away from the corner cylinder (27) is greater than the vertical distance between the surface of the planetary gear (217) near the corner cylinder (27) and the surface of the convex ring tube (213) away from the corner cylinder (27). The vertical cross-sectional shape of the corner shovel (47) is consistent with the inner chamfer of the bottom wall of the stainless steel filter bottle (11) and the outer chamfer of the stainless steel filter screen (18) near the flushing valve (15). The cross-section of the corner shovel (47) away from the waterproof pipe (41) is symmetrical hourglass-shaped. The end face of the corner shovel (47) near the flushing valve (15) has a vertical distance from the surface of the explosion-proof outer ring (31) near the flushing valve (15).

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