Abstract: A quick-mounting device for canisters comprises a housing and a an adjustment. The housing defines a recess at a top thereof and a hollow space therein. The housing is sealed with a cover that defines a though hole at a center thereof. The an adjustment includes two arched pieces and a control piece. The arched pieces are placed in the recess of the housing to define an opening therebetween. The control piece has a pusher and is placed on top of the arched pieces to engage with two ends of each arched piece. Each arched piece is provided with a spring at an external side thereof intermediate of the two ends. Thereby, the pusher of the control piece can be pressed to have the two arched pieces moved outwardly to change the dimension of the opening defined by the two arched pieces so as to mount a canister.

Abstract: The electrical valve control device contains a cover member and a base member joined together. A motor is joined to the cover member's outer surface, and its axle configured with an axial gear threads through the cover member. A transmission gear having a track engages the axial gear. A valve assembly has a nozzle, a plug tube, and a channel connected to the plug tube at one end. The other end of the channel is an open end and is in the same space as the nozzle. A cover piece is positioned in front of the open end of the channel, and is joined to a first end of a shaft threading through a helical spring. A second end of the shaft is connected to an end of a lever. A pin is extended from the second end of the lever and is embedded in the transmission gear's track.

Abstract: The electrical valve control device contains a cover member and a base member joined together. A motor is joined to the cover member's outer surface, and its axle configured with an axial gear threads through the cover member. A transmission gear having a track engages the axial gear. A valve assembly has a nozzle, a plug tube, and a channel connected to the plug tube at one end. The other end of the channel is an open end and is in the same space as the nozzle. A cover piece is positioned in front of the open end of the channel, and is joined to a first end of a shaft threading through a helical spring. A second end of the shaft is connected to an end of a lever. A pin is extended from the second end of the lever and is embedded in the transmission gear's track.

Abstract: The sprayer activation device contains a base member, a cover member, and a transmission assembly. The base member provides an accommodation space, an axle, a positioning piece, a through hole, and a number of positioning pins. The transmission assembly contains a motor and a number of engaging transmission gears in the accommodation space. The motor axle is threaded though the through hole of the base member and has an axle gear engaging a transmission gear. A pin is configured on another transmission gear. The cover member seals the accommodation space, and has a positioning pieces and a through slot. A crank is provided with a positioning opening and an axle hole at its two ends, and a hammer is configured at a side of the crank. The hammer is moved up and down as the transmission assembly drives the crank.

Abstract: A quick-mounting device for canisters comprises a housing and an adjustment means. The housing defines a recess at a top thereof and a hollow space therein. The housing is sealed with a cover that defines a though hole at a center thereof. The adjustment means includes two arched pieces and a control piece. The arched pieces are placed in the recess of the housing to define an opening therebetween. The control piece has a pusher and is placed on top of the arched pieces to engage with two ends of each arched piece. Each arched piece is provided with a spring at an external side thereof intermediate of the two ends. Thereby, the pusher of the control piece can be pressed to have the two arched pieces moved outwardly to change the dimension of the opening defined by the two arched pieces so as to mount a canister.