A sticking elimination method and structure for the water control valve of a water spraying timer. The methodology includes: open/closed state sensing step: detect the open/closed mode of the water control valve and generate and send a signal to the electronically controlled processing unit; stuck state judging step: the detecting and computing module of the processing unit judges if the state of the component has gone beyond the preset abnormal value; reverse control step: if a stuck state is judged, the valve is driven to reverse; reverse state sensing step: detect if the valve has successfully reversed and returned to the open/closed mode; repeated reverse step: if the stuck state is not eliminated, repeat the reverse till set times; automatic shutdown step: if the reverse times reach the set times and it is judged that the valve is still in the stuck state, shut down the water spraying timer.

A paint sprayer includes an end bell, a motor connected to the end bell, a pump drive connected to the end bell, a pair of protrusions attached to an extending from the end bell such that each protrusion is cantilevered from the end bell, and a pump assembly comprising a pair of mounting holes and containing a piston. The pair of mounting holes is adapted to receive and slide onto the pair of protrusions to mount the pump assembly on the end bell as well as slide off of the pair of protrusions to remove the pump assembly from the end bell. The pump drive is configured to covert rotational motion output by the motor to reciprocal motion. The pump assembly is configured to pump paint when reciprocated by the pump drive while mounted on the end bell.

A paint sprayer includes an end bell, a motor connected to the end bell, a pump drive connected to the end bell, a pair of protrusions attached to an extending from the end bell such that each protrusion is cantilevered from the end bell, and a pump assembly comprising a pair of mounting holes and containing a piston. The pair of mounting holes is adapted to receive and slide onto the pair of protrusions to mount the pump assembly on the end bell as well as slide off of the pair of protrusions to remove the pump assembly from the end bell. The pump drive is configured to covert rotational motion output by the motor to reciprocal motion. The pump assembly is configured to pump paint when reciprocated by the pump drive while mounted on the end bell.

A sticking elimination method and structure for the water control valve of a water spraying timer. The methodology includes: open/closed state sensing step: detect the open/closed mode of the water control valve and generate and send a signal to the electronically controlled processing unit; stuck state judging step: the detecting and computing module of the processing unit judges if the state of the component has gone beyond the preset abnormal value; reverse control step: if a stuck state is judged, the valve is driven to reverse; reverse state sensing step: detect if the valve has successfully reversed and returned to the open/closed mode; repeated reverse step: if the stuck state is not eliminated, repeat the reverse till set times; automatic shutdown step: if the reverse times reach the set times and it is judged that the valve is still in the stuck state, shut down the water spraying timer.

A sticking elimination method and structure for the water control valve of a water spraying timer. The methodology includes: open/closed state sensing step: detect the open/closed mode of the water control valve and generate and send a signal to the electronically controlled processing unit; stuck state judging step: the detecting and computing module of the processing unit judges if the state of the component has gone beyond the preset abnormal value; reverse control step: if a stuck state is judged, the valve is driven to reverse; reverse state sensing step: detect if the valve has successfully reversed and returned to the open/closed mode; repeated reverse step: if the stuck state is not eliminated, repeat the reverse till set times; automatic shutdown step: if the reverse times reach the set times and it is judged that the valve is still in the stuck state, shut down the water spraying timer.

A powdering system, having a working configuration and a cleaning configuration and including a powder reservoir, including a supply chamber receiving powder; a sprayer, including a powder applicator, and a cleaning inlet, fluidly connected to the supply chamber such that, in the cleaning configuration, a cleaning air supply source can be connected to the cleaning inlet so as to circulate cleaning air in the supply chamber, wherein the powder reservoir includes a discharge opening, arranged through a wall of the supply chamber and opening into the supply chamber, and a movable plug, which is movable between a closing position, in the working configuration, and an open position, in the cleaning configuration, such that the circulation of cleaning air causes residual powder to be discharged through the discharge opening.

A powdering system, having a working configuration and a cleaning configuration and including a powder reservoir, including a supply chamber receiving powder; a sprayer, including a powder applicator, and a cleaning inlet, fluidly connected to the supply chamber such that, in the cleaning configuration, a cleaning air supply source can be connected to the cleaning inlet so as to circulate cleaning air in the supply chamber, wherein the powder reservoir includes a discharge opening, arranged through a wall of the supply chamber and opening into the supply chamber, and a movable plug, which is movable between a closing position, in the working configuration, and an open position, in the cleaning configuration, such that the circulation of cleaning air causes residual powder to be discharged through the discharge opening.

An apparatus for automatically cleaning a nozzle of a gas supply system is provided. The apparatus includes a carrier with a gas inlet that is adapted to sealingly mate with the nozzle of the gas supply system and an automated nozzle cleaning system in the carrier. The automated nozzle cleaning system includes a first nozzle cleaning device, a second nozzle cleaning device, and a function switching plate. The function switching plate comprises a plurality of through holes, a first through hole of the plurality of through holes is configured to engage the first nozzle cleaning device with the gas inlet when the function switching plate is positioned at a first position, and a second through hole of the plurality of through holes is configured to engage the second nozzle cleaning device with the gas inlet when the function switching plate is positioned at a second position.

The present invention relates to a cleaning device for a spray gun. More specifically, the present invention relates to a device with features to clean the barrel and nozzle of an insulation spray gun. Still more specifically, the present invention is a device used to scrape excess spray foam insulation from a spray gun barrel and provide features to scrape, peel, or otherwise remove excess spray foam insulation from the nozzle of the spray gun to improve performance and longevity of the spray gun.

The present invention relates to a cleaning device for a spray gun. More specifically, the present invention relates to a device with features to clean the barrel and nozzle of an insulation spray gun. Still more specifically, the present invention is a device used to scrape excess spray foam insulation from a spray gun barrel and provide features to scrape, peel, or otherwise remove excess spray foam insulation from the nozzle of the spray gun to improve performance and longevity of the spray gun.