Abstract: A water cleaner, including a housing and a filter mechanism. Two ends of the housing are provided with a first inlet and a first outlet, respectively. The filter mechanism is arranged in the housing. A first end and/or an outer circumference of the filter mechanism are/is provided with a second inlet, and a second end is provided with a second outlet. The sewage flows into the housing through the first inlet and flows towards the filter mechanism to be filtered. The obtained clean water flows into the filter mechanism through the second inlet and flows out of the housing through the second outlet and the first outlet in sequence. The first end of the filter mechanism is close to the first inlet, and the second end is close to the first outlet.

Abstract: An electric pool-cleaning robot, including a housing, a first filtering mechanism and a rotating wheel. One end of the housing is provided with a first water inlet, and the other end of the housing is provided with a first water outlet. The first filtering mechanism is arranged in the housing. The water enters the housing through the first water inlet, and then flows toward the first filtering mechanism to be filtered. The filtered water flows out of the housing through the first water outlet. The rotating wheel is arranged on the housing, and is capable of rotating to drive the housing to move.

Abstract: The invention relates to electric robots, and more particularly to a electric robot for pool cleaning, including a base with a water inlet channel, a volute assembly and a motor assembly capable of outputting positive and negative torques; where the volute assembly is rotatably provided above the base and communicates with the water inlet channel; the volute assembly includes a casing and an impeller assembly provided therein; a water outlet is provided on a side of the casing, and an water outlet channel is provided inside the casing to allow water to flow through the impeller assembly; the motor assembly is provided on the base, and connected with the impeller assembly through an output shaft; and an upper end surface of the base is provided with a limit structure for limiting a rotation angle of the volute assembly.

Abstract: The present portable pool cleaner is provided with an improved annular impeller, which facilitates the possible use of a fore receptacle without a filter bag, operating as an eddy trap for large debris, and also facilitates having an aft receptacle incorporating a filter bag or direct connection to in pool filtration systems. The annual impeller is able to effectively limit object size passing to the next stage, within impeding or striking objections passing through the inside gap in the annular impeller. The impeller duct/annular shape, with internal spiral blades, forms a through hole for the light sewage to more easily pass, while heavier particles in the sewage are trapped. The optional fore and aft receptacles may be detachable to facilitate cleaning, replacement and access to the impeller for cleaning or replacement. The handheld design facilitates underwater use.

Abstract: The present portable pool cleaner is provided with an improved annular impeller, which facilitates the possible use of a fore receptacle without a filter bag, operating as an eddy trap for large debris, and also facilitates having an aft receptacle incorporating a filter bag or direct connection to in pool filtration systems. The annual impeller is able to effectively limit object size passing to the next stage, within impeding or striking objections passing through the inside gap in the annular impeller. The impeller duct/annular shape, with internal spiral blades, forms a through hole for the light sewage to more easily pass, while heavier particles in the sewage are trapped. The optional fore and aft receptacles may be detachable to facilitate cleaning, replacement and access to the impeller for cleaning or replacement. The handheld design facilitates underwater use.

Abstract: The invention relates to a system comprising a hybrid heating device (PAC-H) for a fluid contained in a remote tank (SP), comprising a fluid inlet (Wi) for receiving the fluid from the tank, first and second internal heating means for said fluid, control means co-operating with said first and second internal heating means, and a fluid outlet (Wo) for returning said heated fluid. Said control means activate alternately or simultaneously the first and second internal heating means according to a setpoint and/or a predetermined operating parameter of the hybrid heating device.

Abstract: The invention relates to an intake and delivery module for a fluid, in particular water for a swimming pool or more generally for a tank, and an associated system for treatment of said associated fluid. It makes it possible to facilitate the installation and the activation of the system for treatment of the fluid of a tank, to generate a sufficient output of fluid, to decrease the number of pieces of equipment and to prevent any damage to the treatment means. The fluid intake and delivery module comprises an intake port which co-operates with a proximal part of a fluid outlet conduit and a delivery port which co-operates with a proximal part of a fluid inlet conduit. It also includes a self-priming pump which co-operates with the fluid outlet conduit downstream of the intake port.