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EP-4741605-A2 - POOL CLEANER

EP4741605A2EP 4741605 A2EP4741605 A2EP 4741605A2EP-4741605-A2

Abstract

A pool cleaner includes a housing having a water inlet and a water outlet and further defining an accommodating chamber, and a brush head assembly connected to the housing. A filter cartridge is arranged in the accommodating chamber of the housing and is in fluid communication with the water outlet, and the filter cartridge includes an upper end surface and a lower end surface. A filter element is arranged in the accommodating chamber of the housing and abuts the lower end surface of the filter cartridge and is in fluid communication with the water inlet.

Inventors

  • ZENG, XIANGLIN
  • HU, WENHUA
  • SONG, QINGSHUI

Assignees

  • Bestway Inflatables & Material Corp.

Dates

Publication Date
20260513
Application Date
20250808

Claims (15)

  1. A pool cleaner comprising: a housing (300) including a water inlet (302) and a water outlet (303), the housing (300) further defining an accommodating chamber (301); a brush head assembly (200) connected to the housing (300); a filter cartridge (420) disposed in the accommodating chamber (301) of the housing (300) and in fluid communication with the water outlet (303), the filter cartridge (420) including an upper end surface (425) and a lower end surface (424); and a filter element (410) disposed in the accommodating chamber (301) of the housing (300), such that the filter element (410) abuts the lower end surface (424) of the filter cartridge (420) and is in fluid communication with the water inlet (302).
  2. The pool cleaner according to claim 1, wherein the filter cartridge (420) comprises a first through hole (421), and the filter element (410) comprises: a first end (413) having an annular connecting portion (417); and a second end (414) abutting the lower end surface (424) of the filter cartridge (420) and comprising a positioning boss (416) disposed in the first through hole (421) of the filter cartridge (420).
  3. The pool cleaner according to claim 2, wherein the housing (300) comprises: a first housing (310) including a step (313) disposed on an inner sidewall of the first housing (310); and a second housing (320) detachably connected to the first housing (310); and the annular connecting portion (417) is disposed on the step (313) and located between the first housing (300) and the second housing (300).
  4. The pool cleaner according to claim 3, wherein the first housing (300) further comprises a limiting post (314) disposed on a top wall (317) of the bottom portion (301") of the accommodating chamber (301), the filter cartridge (420) is disposed on the limiting post (314), and the upper end surface (425) of the filter cartridge (420) abuts the top wall (317) of the bottom portion (301") of the accommodating chamber (301).
  5. The pool cleaner according to claim 1, wherein the pool cleaner (100) further comprises a water pump assembly (500), the water pump assembly (500) comprising: a motor (501); an impeller (502) driven by the motor (501); and a battery (503) supplying power to the motor (501).
  6. The pool cleaner according to claim 1, wherein the brush head assembly (200) comprises: a brush head housing (210) having a plurality of sidewalls (211); a plurality of gear sets (230) disposed on the plurality of sidewalls (211); a plurality of wheels (220) disposed on the plurality of sidewalls (211) and connected to the plurality of gear sets (230); and a roller brush (270) connected to each of the plurality of gear sets (230).
  7. The pool cleaner according to claim 6, wherein each of the plurality of gear sets (230) comprises: a first gear (231) connected to the roller brush (270); a second gear (232) meshing with the first gear (231); and a third gear (233) meshing with the second gear (232) and disposed on at least one of the plurality of wheels (220).
  8. The pool cleaner according to claim 7, wherein the roller brush (270) comprises a second through hole (271) extending in an axial direction of the roller brush (270), and a boss (272) is disposed in the second through hole (271); and the first gear (231) comprises: a first extension shaft (235) extending along an end surface of the first gear (231) and disposed in the second through hole (271), the first extension shaft (235) further including a hook (236) connected to the boss (272).
  9. The pool cleaner according to claim 8, wherein each of the plurality of sidewalls (211) of the brush head housing (300) defines a first mounting hole (216), a first bushing (260) is disposed in the first mounting hole (216), and the first extension shaft (235) extends through the first bushing (260) and into the second through hole (271).
  10. The pool cleaner according to claim 9, wherein a first groove (217) is formed in an inner wall of the first mounting hole (216), and a first protrusion (261) configured to mate with the first groove (217) is disposed on an outer wall of the first bushing (260).
  11. The pool cleaner according to claim 1, wherein a charging port (60) is disposed on the housing (300).
  12. The pool cleaner according to claim 11, wherein the charging port (60) comprises a T-shaped socket (601) and electrode posts (602) disposed on a first side and a second side of the T-shaped socket (601).
  13. The pool cleaner according to claims 5 and 11, wherein the charging port (60) is electrically coupled to a battery (503).
  14. The pool cleaner according to the preceding claim, wherein the pool cleaner further comprises a protective cover (600) configured to cover the charging port (60); the protective cover being movable between an open position, in which the charging port (60) is accessible, and a closed position, in which the protective cover seals the charging port (60).
  15. The pool cleaner according to claim 1, wherein the brush head assembly (200) further includes a suction port (203) configured to draw debris from a pool into the accommodating chamber (301) defined by the housing (300).

Description

TECHNICAL FIELD The present disclosure relates to pool cleaners, and in particular, to a pool cleaner including a filtration device. BACKGROUND Traditional pool cleaners include a motor that drives an impeller to rotate, such that rotation of the impeller generates vacuum suction. The vacuum suction generated by the impeller may cause residue and leaves at the bottom of a pool to be sucked into a filter chamber for filtration, thereby cleaning the pool and reducing water changes. In existing pool cleaners, the water flowing through the pool cleaner is filtered only once through a filter screen, which may remove large particles or leaves but fail to capture small residues. For example, when a user pushes existing pool cleaners forward to clean the pool, a brush head of the pool cleaner causes the residues in front of the brush head to deviate from a water inlet of the pool cleaner, which may prevent the pool cleaner from effectively capturing residue within the filter chamber. SUMMARY An objective of the present disclosure is to provide a pool cleaner having a double filtration device that is capable of effectively removing large particulate and smaller residue from a pool. The pool cleaner described herein aims to alleviate the shortcomings of traditional pool cleaners, which implement single filter devices, such as filter screens, which are ill-equipped to remove both large particulate and small residue from a pool. In order to solve the above technical problem, an implementation of the present disclosure discloses a pool cleaner, including: a housing, which defines an accommodating chamber and includes a water inlet and a water outlet; a brush head assembly connected to the housing; a filter cartridge, which is arranged in the accommodating chamber of the housing and in fluid communication with the water outlet, and includes an upper end surface and a lower end surface; and a filter element, which is arranged in the accommodating chamber of the housing, and abuts against the lower end surface of the filter cartridge and is in fluid communication with the water inlet. In some embodiments, the filter cartridge includes a first through hole, and the filter element includes: a first end, which includes an annular connecting portion; and a second end, which abuts against the lower end surface of the filter cartridge and includes a positioning boss arranged in the first through hole of the filter cartridge. In some embodiments, the housing includes: a first housing, which includes a step arranged on an inner sidewall of the first housing; and a second housing detachably connected to the first housing; and the annular connecting portion is arranged on the step and located between the first housing and the second housing. In some embodiments, the first housing further includes a limiting post arranged on a top wall of the bottom portion of the accommodating chamber, the filter cartridge is mounted on the limiting post, and the upper end surface of the filter cartridge abuts against the top wall of the bottom portion of the accommodating chamber. In some embodiments, the pool cleaner further includes a water pump assembly, the water pump assembly including: a motor; an impeller driven by the motor; and a battery supplying power to the motor. In some embodiments, the brush head assembly includes: a brush head housing including sidewalls; gear sets arranged on the sidewalls; wheels arranged on the sidewalls and connected to the gear sets; and a roller brush connected to the gear sets. In some embodiments, the gear set includes: a first gear connected to the roller brush; a second gear meshing with the first gear; and a third gear meshing with the second gear and arranged on the wheel. In some embodiments, the roller brush includes a second through hole formed in an axial direction of the roller brush, and a boss is provided in the second through hole; and the first gear includes: a first extension shaft, which extends along an end surface of the first gear and arranged in the second through hole, and includes a hook connected to the boss. In some embodiments, the sidewall of the brush head housing includes a first mounting hole in which a first bushing is arranged, and the first extension shaft extends through the first bushing and is arranged in the second through hole. In some embodiments, a first groove is formed in an inner wall of the first mounting hole, and a first protrusion that fits with the first groove is provided on an outer wall of the first bushing. In some embodiments, a charging port is provided on the housing, and the charging port includes a T-shaped socket and electrode posts arranged on two sides of the socket. In another embodiment of the present disclosure, a pool cleaner is disclosed. The pool cleaner includes a housing defining an accommodating chamber, a water inlet, and a water outlet, a brush head assembly connected to the housing, a water pump assembly arranged in the accommodating chamb