Abstract: A spreading control switch structure of a spreader has a spreading tube, a positioning member, a main tube and a switch unit. With the positioning member and the switch unit, the opening and closing state and the spreading amount of the present invention can be adjusted by the circular plate of the valve in the spreading tube. The size of the pipe in the spreading tube is opened to control the blanking amount. On the other hand, the circular plate of the valve can be kept opened in the spreading tube all time without the switching handle being pressed. Therefore, it is easier and less laborious to execute the spreading process.

Abstract: A hand-operated spreader has a base, an assembly member, a feeding rudder, an adjusting member, a feeding cone and a container. The feeding cone has the effect of guiding along the cone through the conical body to prevent the feeding aperture from clogging due to moisture, accumulation or weight. The feeding rudder is mounted on the feeding opening of the assembly member and is driven by the rotating handle on one side, and the rotating handle may set the spreading direction along the limiting portions of the open end, which enables the feeding rudder to be reliably positioned via the limiting portion and prevent the feeding rudder from being unstable while improving the dropout accuracy of the discharged material.

Abstract: A sprayer includes a shank having a first end provided with a first connecting portion and a second end provided with a second connecting portion, a first connector secured on the first connecting portion of the shank, a first water-tight gasket abutting the first connecting portion and the first connector, a second connector secured on the second connecting portion of the shank, a second water-tight gasket abutting the second connecting portion and the second connector, a handle connected with the first connector, and a nozzle assembly connected with the second connector. Thus, the liquid will not leak between the first connector and the first connecting portion of the shank by the first water-tight gasket and will not leak between the second connector and the second connecting portion of the shank by the second water-tight gasket.

Abstract: A compressor pump for a sprayer comprises a pump, a piston and a connecting rod. The pump comprises a containment space, an opening formed at a bottom thereof and a plurality of through holes connected to the containment space at an upper portion thereof. The piston is disposed through the opening of the pump in the containment space, and the piston has a plurality of oil slots formed around an outer periphery, a sealing ring and an O ring jacketed onto the outer periphery, and an assembling portion with an internal thread formed inside of the piston. The elongated connecting rod has a connecting portion at each end respectively pivoted to a connecting member and a crank via respective axis hitches, such that the connecting member and the crank are capable of performing reciprocating (biased) movements at two ends of the connecting rod.

Abstract: A sprinkler includes a receiving barrel, a boosting unit, a spraying unit and a protective hood. The protective hood has a side provided with a plug which has an end face provided with a mounting post. The mounting post has an inner portion provided with a mounting recess and an end portion provided with a spraying hole. The end face of the plug has a periphery provided with a plurality of filtering holes. The plug of the protective hood is inserted into the mouth of the receiving barrel when the protective hood is mounted on the mouth of the receiving barrel. The mounting post of the protective hood is mounted on the nozzle head of the spraying unit when the protective hood is mounted on the nozzle head of the spraying unit.

Abstract: A sprayer includes a base, a container, a drive device, a pumping device, and an outlet pipe. The drive device includes a drive shaft and a drive handle. The pumping device includes a pressure tank, a pressure release valve, a piston cylinder, a barrel, a piston, a piston rod, two guard brackets and a crank. The container is provided with a plurality of fixing plates secured in the fixing brackets of the base so that the container is combined with the base solidly and stably to enhance the strength of the sprayer. The piston rod is encompassed and protected by the barrel, and the crank is encompassed between and protected by the two guard brackets, so that the piston rod and the crank are operated exactly and stably.

Abstract: An air-pressure sprayer. The air-pressure sprayer includes a container, a cover unit, an air-pump unit, a spray mouthpiece unit, and a water-stop valve wherein the cover unit, screw jointed to said container, has a press body disposed at one side thereof which can control the movement of the water-stop valve located in parallel position at the other side thereof. The air-pump unit has a valve rod with a head knob disposed at the top and an air-relief valve attached at the bottom thereof. The valve rod and the air-relief valve are led through a sleeve cylinder and joined to the cover unit at the upper section. The spray mouthpiece unit, attached to one side of said cover unit via a sleeve body and a pivot body, can be moved upwards or downwards to point at different directions for use.

Abstract: An improved air-pressure sprayer structure comprises a container, a cover unit, an air-pump unit, a spray mouthpiece unit, and a water-stop valve wherein the cover unit, screw jointed to said container, has a press body disposed at one side thereof which can control the movement of the water-stop valve located in parallel position at the other side thereof. The air-pump unit has a valve rod with a head knob disposed at the top and an air-relief valve attached at the bottom thereof. The valve rod and the air-relief valve are led through a sleeve cylinder and joined to the cover unit at the upper section. The spray mouthpiece unit, attached to one side of said cover unit via a sleeve body and a pivot body, can be moved upwards or downwards to point at different directions for use.