High-pressure cleaning device

A high-pressure cleaning device comprising:

• a conveying pump;
• a conveying conduit comprising a spray opening, the conveying conduit configured to convey cleaning liquid, conveyed by the conveying pump, in a conveying direction from the conveying pump to the spray opening of the conveying conduit;
• a switch element comprising at least a first switched state and a second switched state;
• an actuator configured to adjust the switch element between the first switched state and the second switched state;
• the high-pressure cleaning device configured such that the actuator is configured to adjust the switch element between the first switched state and the second switched state by an adjusting force effected by the cleaning liquid on the actuator;
• a conveyance actuating element comprising an open position and a closed position, wherein the conveyance actuating element in the open position permits the cleaning liquid to pass through the conveying conduit from the conveying pump to the spray opening, and wherein the conveyance actuating element in the closed position prevents the cleaning liquid from passing through the conveying conduit from the conveying pump to the spray opening;
• a branch conduit that branches off the conveying conduit at a branch location of the conveying conduit and connects the conveying conduit to the actuator;
• a switch actuating element arranged between the branch location and the actuator, wherein the switch actuating element comprises a passage position and a blocking position, wherein the switch actuating element in the passage position permits the cleaning liquid to pass through the branch conduit, and wherein the switch actuating element in the blocking position prevents the cleaning liquid from passing through the branch conduit;
• wherein the branch conduit is divided into a holding section extending from the branch location to the switch actuating element and into a pressure section extending from the switch actuating element to the actuator, wherein, in operation of the high-pressure cleaning device, a holding pressure is present in the holding section of the branch conduit when the switch actuating element is in the blocking position and the conveyance actuating element is in the closed position.

A high-pressure cleaning device comprising:

• a conveying pump;
• a conveying conduit comprising a spray opening, the conveying conduit configured to convey cleaning liquid, conveyed by the conveying pump, in a conveying direction from the conveying pump to the spray opening of the conveying conduit;
• a switch element comprising at least a first switched state and a second switched state;
• an actuator configured to adjust the switch element between the first switched state and the second switched state;
• the high-pressure cleaning device configured such that the actuator is configured to adjust the switch element between the first switched state and the second switched state by an adjusting force effected by the cleaning liquid on the actuator;
• a conveyance actuating element comprising an open position and a closed position, wherein the conveyance actuating element in the open position permits the cleaning liquid to pass through the conveying conduit from the conveying pump to the spray opening, and wherein the conveyance actuating element in the closed position prevents the cleaning liquid from passing through the conveying conduit from the conveying pump to the spray opening;
• a branch conduit that branches off the conveying conduit at a branch location of the conveying conduit and connects the conveying conduit to the actuator;
• a switch actuating element arranged between the branch location and the actuator, wherein the switch actuating element comprises a passage position and a blocking position, wherein the switch actuating element in the passage position permits the cleaning liquid to pass through the branch conduit, and wherein the switch actuating element in the blocking position prevents the cleaning liquid from passing through the branch conduit;
• a drainage return channel connecting the pressure section of the branch conduit to an element section of the conveying conduit, wherein the element section of the conveying conduit extends from the conveyance actuating element to the spray opening, wherein the drainage return channel is interrupted in the passage position of the switch actuating element and is open in the blocking position of the switch actuating element to permit a flow of the cleaning liquid only in a direction from the pressure section to the element section.

A high-pressure cleaning device comprising:

• a conveying pump;
• a conveying conduit comprising a spray opening, the conveying conduit configured to convey cleaning liquid, conveyed by the conveying pump, in a conveying direction from the conveying pump to the spray opening of the conveying conduit;
• a switch element comprising at least a first switched state and a second switched state;
• an actuator configured to adjust the switch element between the first switched state and the second switched state;
• the high-pressure cleaning device configured such that the actuator is configured to adjust the switch element between the first switched state and the second switched state by an adjusting force effected by the cleaning liquid on the actuator;
• at least a first work element and a second work element;
• wherein, in the first switched state of the switch element, the switch element connects the first work element to the conveying conduit and disconnects the second work element from the conveying conduit and wherein, in the second switched state of the switch element, the switch element connects the second work element to the conveying conduit and disconnects the first work element from the conveying conduit;
• a first housing containing the conveying pump, the conveying conduit, the switch element, and the actuator;
• wherein the first work element is a first nozzle and the second work element is a second nozzle, wherein the first nozzle and the second nozzle are arranged together in a single second housing.