Abstract: The invention relates to an underwater cleaner, in particular for a swimming pool, with a housing in which in particular a battery-powered pump with an electric motor and an impeller rotatable about an impeller axis of rotation is arranged, with a suction nozzle—defining a suction plane—formed by the housing, and a flow channel which is arranged in the housing and accommodates the impeller, is designed to be inclined with respect to the suction plane and which extends between an inlet opening arranged in the region of the suction nozzle and an outlet opening, wherein a receptacle for a filter device is arranged in the region of the outlet opening, and wherein the housing together with the suction nozzle can be manufactured by injection molding and the flow channel can be molded by a slider which can be pulled in the longitudinal direction of the flow channel.

Abstract: The invention relates to an underwater cleaner (1), in particular for a swimming pool, comprising a suction nozzle housing (3) having a suction nozzle (2) which communicates with a suction chamber (4), and having a suction mouth (10) which defines a suction plane (9), wherein an outlet channel (5) stems from the suction chamber (4), which outlet channel has a connection (6) for a filter device in the region of its outlet opening (50), and comprising at least one water jet nozzle (7, 12) which opens into the suction chamber (4) in the region of the suction nozzle (2) and via which water can be fed under pressure into the suction chamber (4) such that a negative pressure is established in the suction chamber (4) according to the water jet pump principle, wherein a first water jet nozzle (7) opens into the suction chamber (4) in such a way that a flow center line (7a) of the first water jet nozzle (7) is directed into the outlet channel (5), wherein the first water jet nozzle (7) is formed in one piece with the

Abstract: The invention relates to a propeller arrangement (1) having a propeller part (2) and a shaft part (3), in particular for an underwater vacuum cleaner, wherein the propeller part (2) and the shaft part (3) are coaxially connected to one another via a latching connection (4), which latching connection (4) has at least two latching fingers (5) which can move elastically in a latching direction (R) radially with respect to an axis of rotation (1a) of the propeller arrangement (1), and a latching opening (6) for accommodating the latching fingers (5). The latching fingers (5) are formed integrally with the shaft part (3). The latching fingers (5) and the latching opening (6) form—in and/or against a direction of rotation (P) of the propeller arrangement (1) —a positive connection. This enables an easily detachable rotary connection between the propeller part (2) and the shaft part (3) in a simple manner.

Abstract: The invention relates to a propeller arrangement (1) having a propeller part (2) and a shaft part (3), in particular for an underwater vacuum cleaner, wherein the propeller part (2) and the shaft part (3) are coaxially connected to one another via a latching connection (4), which latching connection (4) has at least two latching fingers (5) which can move elastically in a latching direction (R) radially with respect to an axis of rotation (1a) of the propeller arrangement (1), and a latching opening (6) for accommodating the latching fingers (5). The latching fingers (5) are formed integrally with the shaft part (3). The latching fingers (5) and the latching opening (6) form—in and/or against a direction of rotation (P) of the propeller arrangement (1)—a positive connection. This enables an easily detachable rotary connection between the propeller part (2) and the shaft part (3) in a simple manner.

Abstract: Various aspects of the present disclosure are directed to swimming pool vacuum cleaners. In one example embodiment, the pool vacuum cleaner includes a main body having a housing with an impeller driven by an electric motor, an inlet opening in a bottom region of the housing, and an outlet opening on an outlet side of the housing. The vacuum cleaner further includes a collecting container receptacle that accommodates a collecting container arranged in the region of the outlet opening, a rod receptacle releasably connected to a guide rod arranged in the region of the outlet side, and a guide fork pivotably connected to the housing about a pivot axis. The rod receptacle arranged on the guide fork. The pivot axis is arranged at a distance from a center of mass of the main body, and the center of mass is arranged between the pivot axis and the outlet opening.

Abstract: The invention relates to an underwater cleaner (1), especially for a swimming pool, comprising a housing (2) in which an especially battery-powered pump having an electric motor (4) and an impeller (3) is arranged, wherein the housing (2) comprises an inlet opening (23) and an outlet opening (22) for a flow path, said flow path forming a first channel section (13) originating from the first inlet opening (23) and a second channel section (14) accommodating the impeller (3), wherein the second channel section (14) is arranged in an inclined manner in relation to the first channel section (13), and wherein the impeller axis (18) is arranged in an inclined manner in relation to a normal (24) to the opening cross-section of the inlet opening (23). The ratio A/B of a first cross-sectional surface A to a second cross-sectional surface B is less than 2.

Abstract: The invention relates to an underwater cleaner (1), especially for a swimming pool, comprising a housing (2) in which an especially battery-powered pump having an electric motor (4) and an impeller (3) is arranged, wherein the housing (2) comprises an inlet opening (23) and an outlet opening (22) for a flow path, said flow path forming a first channel section (13) originating from the first inlet opening (23) and a second channel section (14) accommodating the impeller (3), wherein the second channel section (14) is arranged in an inclined manner in relation to the first channel section (13), and wherein the impeller axis (18) is arranged in an inclined manner in relation to a normal (24) to the opening cross-section of the inlet opening (23). The ratio A/B of a first cross-sectional surface A to a second cross-sectional surface B is less than 2.

Abstract: A portable jet stream device for swimming pools, comprising a housing in which a propeller is arranged which is driven by a drive motor, with the jet stream device having a holder for detachable positioning in the pool, said holder having a pedestal-like supporting foot which can be positioned on the floor of the pool and with which the housing is connected in a swivelable manner via at least one first holding strut. The supporting foot is formed by a base plate parallel to the floor of the swimming pool, with preferably the bottom side of the base plate being arranged to be planar and with a closed surface.

Abstract: The invention relates to an underwater cleaner (1), particularly for a swimming pool, comprising a suction nozzle housing (3) that has a suction nozzle (2), which communicates with a suction chamber (4), and has a suction mouth (19), which defines a suction plane (16), whereby a discharge channel (5) emanates from the suction chamber (4), and a filter device (6) is connected to said outlet channel. The inventive device also comprises a water jet nozzle (7) that leads into the suction chamber (4) and via which water under pressure can be fed into the suction chamber (4) whereby, according to the principle of the water jet pump, giving rise to a vacuum inside the suction chamber (4). The aim of the invention is, in the simplest possible manner and even in difficult to reach areas, to enable an effective cleaning and, at the same time, to also efficiently remove heavy dirt particles, such as stones.