The present disclosure discloses a cleaning device, including a frame and a multi-channel adapter, where a water tank, a water pump, and a motor pump assembly are mounted on the frame; and the multi-channel adapter is provided with a water inlet and a water outlet. The water inlet includes a first water inlet, a second water inlet, and a third water inlet. A water outlet joint of the water tank is connected to the first water inlet. The water pump is connected to the second water inlet, and the motor pump assembly is connected to the third water inlet and the water outlet. According to the present disclosure, a battery life and a cleaning effect of the cleaning device are improved, a requirement for an outdoor cleaning operation can be met, and convenience of water fetching is improved, thereby enhancing work experience of a user.

An improved system and method for spraying roadside structures comprising a motor vehicle equipped with a fluid tank, various spray devices including at least one upright spray bar positioned forward of the tank, a water pump, a water distribution system including distribution lines and solenoid valves for directing flow to desired spray devices, control panels in the cab for controlling the water pump and solenoid valves. The truck is equipped with a traffic safety signboard, emergency lights, and a controller in the cab for controlling said signboard and emergency lights.

A pressure washer has a connection for a source of liquid; a high pressure pump; a main line by way of which liquid via the high pressure pump is conveyable from the connection to a spray opening of the main line; and a supplemental pump for adding an additive to the liquid. The pressure washer is conceived in such a way that the additive by way of the supplemental pump is able to be fed to the main line upstream of the high pressure pump.

An agricultural sprayer includes an actuator configured to adjust the position of a boom assembly of the sprayer relative to a frame of the sprayer. A computing system is configured to determine the operating parameter of the sprayer at a current time based on received sensor data. Moreover, the computing system is configured to anticipate when the boom assembly will move relative to the frame in a fore/aft direction at a future time based on the determined operating parameter, with the fore/aft direction being parallel to a direction of travel of the agricultural sprayer. In addition, when it is anticipated that the boom assembly will move, the computing system is configured to control the operation of the actuator before the future time such that movement of the boom assembly relative to the frame is reduced at the future time.

A pressure washer includes a connection for a fluid source, a pump, a motor. A main line has a suction chamber between a connection to a spray opening and a pump and a pressure chamber between the pump and the spray opening which are fluidically connected via a bypass line. To regulate the pressure in the pressure chamber, a free cross-sectional surface of the bypass line is adjustable. A switch-off unit causes, as a result of the pressure prevailing in the pressure chamber, that the motor is in the off-state if the pressure chamber pressure corresponds at least to a pressure threshold. A pressure build-up valve is arranged in the bypass line reducing the free cross-sectional surface of the bypass line to such an extent when a volume threshold of flow through the bypass line is exceeded, the pressure in the pressure chamber corresponds at least to the pressure threshold.

A pressure washing device is provided with a bypass mode. The device comprises a bypass mode and bypass structure that is in fluid communication with a fluid tank for at least one of storing and cooling a fluid that has been heated to unacceptable levels. The present disclosure further provides various devices and features for managing and mitigating heating and over-heating of fluids and components in communication with the fluids.

A system for controlling a ground speed of an agricultural sprayer includes a speed setting device for commanding a selected ground speed of the sprayer when operating within a speed-range mode associated with a ground speed range. The speed setting device is movable across a plurality of positions, with each position being associated with a different ground speed within the ground speed range. A maximum range speed of the ground speed range is lower than a maximum ground speed of the sprayer. As such, the system includes a speed override input device for commanding that the ground speed of the sprayer be increased to the maximum ground speed. When an override input is received from the speed override input device, the computing system controls the operation of a sprayer drive system to increase the ground speed of the sprayer from the selected ground speed to the maximum ground speed.

An agricultural sprayer includes a purge tank, a nozzle configured to dispense an agricultural fluid onto an underlying field, and a downstream valve configured to selectively permit the air from the main fluid conduit to flow to the nozzle. A computing system is configured to initiate a purging operation to purge the agricultural fluid present within the nozzle and, upon receipt of the input, control an operation of a main valve such that the main valve is moved to an opened position to allow the air to flow through a main fluid conduit. In addition, the computing system is configured to monitor a first air pressure associated with the purge tank and a second air pressure associated with the nozzle. Furthermore, the computing system is configured to control an operation of the downstream valve during the purging operation based on the monitored first and second air pressures.

A system includes a frame, a spot-free water generator, a booster pump, a tank, a first pressure washer, and a first on-demand pump. The frame is configured to be received within and coupled to a portion of an interior of a vehicle. The spot-free water generator includes a carbon filter, a pre-filter, and a plurality of membranes and is configured to generate spot-free rinse water from tap water. The booster pump receives tap water from an exterior water inlet port and delivers the tap water to the spot-free water generator at a predetermined pressure. The tank is coupled to the frame and receives and stores at least a portion of the spot-free rinse water generated by the spot-free water generator. The first on-demand pump is coupled to the frame and is configured to deliver spot-free rinse water from the tank to the first pressure washer.

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.