The invention relates to an electrically operated high-pressure cleaning apparatus, said cleaning apparatus comprising: a support device; an electric motor held thereon and/or arranged thereon; a pump which can be driven by the electric motor; and an electrical device; as well as a user-guided operating unit which can be or is connected to the pump via a high-pressure conduit, the electrical device comprising two connection lines via which the electric motor is connected or can be connected to a power supply device in a bipolar manner and can be supplied with electrical energy. In order to provide a high-pressure cleaning apparatus which is more user-friendly, in accordance with the invention: the electrical device comprises at least one switching element connected in at least one connection line, a control unit, and a first communication member; the operating unit comprises an actuating element and a second communication member for wirelessly transmitting a signal to the first communication member; and the control unit is operatively connected to the at least one switching element, and the at least one connection line is electrically conductively connected or electrically interrupted depending on an actuation of the actuating element.

A roller kit for a power washer surface cleaner attachment. A roller mount includes a bracket mounting a roller for rotation with respect to the roller mount and a clip for securing the roller kit to the surface cleaner attachment such that the roller is operatively aligned with the surface cleaner attachment for rolling over a surface to guide movement of the surface cleaner attachment along said surface. The clip includes a base portion supporting the bracket and an arm portion opposing the base portion. The clip is configured to bend resiliently in an opening direction to define an opening between the arm portion and the base portion for receiving a side wall of the shroud and to rebound in a gripping direction to grip the side wall between the arm portion and the base portion and thereby secure the roller kit to the surface cleaner attachment.

A cleaning device, which includes a clean water tank, a water pump and a cleaning head. A water outlet of the clean water tank is connected with the water pump, and a water outlet of the water pump is connected with the cleaning head through an outlet pipe. The cleaning device further includes an outlet control switch and a one-way water hydraulic control valve. The outlet control switch is provided on the outlet pipe; a water inlet of the one-way water hydraulic control valve is connected with the outlet pipe, and a joint of the water inlet of the one-way water hydraulic control valve and the outlet pipe is disposed between the outlet control switch and the water pump; and a water outlet of the one-way water hydraulic control valve is communicated with a water inlet of the clean water tank.

A pressure washer spray gun includes a spray gun body configured to be fluidly coupled to a source of pressurized water, a chemical container configured to contain liquid chemical, a chemical injection port fluidly coupled to the chemical container, an air inlet port configured to be fluidly coupled a source of air, and a nozzle configured for ejecting fluid through an orifice having an orifice diameter. The air inlet port is located between the chemical injection port and the nozzle orifice. In operation, with the orifice diameter being a first orifice diameter, a high pressure operating mode is implemented. In operation, with the orifice diameter being a second orifice diameter greater than the first orifice diameter, a chemical injection operating mode is implemented. In operation, with the orifice diameter being a third orifice diameter greater than the second orifice diameter, a foaming chemical injection mode is implemented.

The utility model discloses an adjustable coating cleaning gun, comprising a gun body, a trigger switch and a cleaning solution storage kettle, wherein a cleaning spray head is fixed to a gun head of the gun body; a spray pipe joint is fixed to a gun head air passage of the gun body; a swinging spray pipe is arranged in the cleaning spray head; the swinging spray pipe is a hollow elliptical pipe; a long axis of a section of the hollow elliptical pipe is longitudinally arranged, and a short axis is horizontally arranged.

A high-pressure cleaning system with a high-pressure cleaning appliance including a pump, a motor, a pump inlet and a pump outlet, and a control device, and with at least one discharge unit adapted to be brought into fluid connection with the pump outlet for discharging pressurized cleaning liquid is disclosed. In order to further develop the high-pressure cleaning system in such a way that as good a cleaning result as possible is more easily achievable, the high-pressure cleaning system includes a detection unit by which the type of discharge unit presently in fluid connection with the pump outlet is detectable and which is connected in a signal-transmitting manner to the control device, at least one conveying parameter of the high-pressure cleaning appliance being automatically adaptable by the control device to the detected type of discharge unit. A discharge unit for such a high-pressure cleaning system is also disclosed.

A pressure washer spray gun includes a spray gun body configured to be fluidly coupled to a source of pressurized water, a chemical container coupled to the spray gun body, wherein the chemical container is configured to contain liquid chemical, a venturi including a converging section, a throat, and a diverging section, wherein the venturi is coupled to the body, and wherein the chemical container is fluidly coupled to the throat, an air inlet port formed in the diverging section and configured to fluidly couple the diverging section to a source of air, and multiple nozzles, wherein each nozzle has a different orifice diameter, and wherein only one nozzle at a time can be selected to provide a fluid output from the spray gun.

A method of cleaning highway and road construction equipment is disclosed.

A steam cleaning accessory for use with a steam generator comprises: a flexible body comprising a base and at least one peripheral wall upstanding from the base. At least one steam conduit is connectable to the steam generator and arranged to be in fluid communication therewith. The steam conduit comprises at least one steam outlet for ejecting steam and the at least one steam outlet is mounted on an underside of the base which is configured to be adjacent to a surface to be cleaned. A flexible pocket is mounted on the flexible body and is arranged to receive a user's hand. The at least one peripheral wall comprises at least one deflection element outwardly projecting from the peripheral wall.

A gyrating nozzle head spray gun includes grip including air inlet, valve seat, gas-delivery tube connected to valve seat and terminating in mating connection screw rod and trigger operable for letting external compressed air go into air inlet and gas-delivery tube, attachment tube connected to mating connection screw rod of the gas-delivery tube, gyrating nozzle head assembly including gas-supply tube connected to mating connection screw rod and suspended in attachment tube, bearing, cap, linking module and gyrating nozzle head mounted on one end of the gas-supply tube, and water-delivery tube having one end extended bottom of coupling hole of gas-delivery tube and connected to water tank for sucking in water and opposite end thereof inserted through gyrating nozzle head for ejecting fluid for creating mist of fine droplets upon ejection of compressed air through the gas-supply tube and oblique jet hole and central axle hole of the gyrating nozzle head.