Abstract: A rotary spray device includes a seat body having an entrance and a spray head body in which a fluid passage is provided. The rotary spray device further includes at least one impeller. The entrance communicates with the fluid passage by a fluid chamber. The impeller is located within the fluid chamber and is rotated with the spray head body. The spray head body is rotatably connected with the seat body. Preferably, the spray head body has eccentric spray nozzles, and the minimal distance is not zero between the center lines of the eccentric spray nozzles and the rotation center line of the spray head body, and the center lines do not parallel the rotation center line. The rotation center line of spray head body is an axis about which the spray head body rotates relative to the seat body. The spray device according to the present invention rotates the spray head body by the drive of the fluid energy, to perform a pressure pray, and may also spray leak liquid through the rotation clearance.

Abstract: A spray device includes a normally closed valve, and a spray head having a spray nozzle, wherein the valve includes a valve body, a piston element, a thermal sensitive mechanism having a thermal sensitive element and a bracket supporting the thermal sensitive mechanism. The valve body has an inlet chamber, a control chamber, and an outlet chamber. The spray device normally operates in a standby state in which the thermal sensitive mechanism is arranged to press against the piston element which is driven to block physical access between the inlet chamber and the outlet chamber. The control chamber is located at a lateral position of the outlet chamber in such a manner that axes of the control chamber and the outlet chamber are approximately perpendicular to each other. The spray head has an atomizing chamber, and is supported for such as to avoid the thermal sensitive mechanism from being blocked.