Disclosed is a part circle mechanism assembly mounted on a sprinkler. The part circle mechanism assembly comprises a base with a symmetrical rotational structure. The symmetrical structure further comprises a plurality of contact faces. Further a lower trip is mounted on the base. The part circle mechanism assembly further comprises an upper trip mounted on the base. At least two sector rings are mounted on the sprinkler. At least one sector ring from the at least two sector rings is in contact with the lower trip. Further the part circle mechanism assembly comprises a trip spring mounted on both tripsupper and lower. The trip spring is configured to actuate the upper trip to reverse a motion of the sprinkler. Further a cover is configured to snap fit on the base.

An articulated connection joint between a liquid supply line and a sprinkler barrel includes a fixed tubular body to be connected to the supply line and a movable tubular body to be connected to the fixed tubular body and to the barrel. These bodies have end portions with equal curvature, one of which slidingly fits into the other one with a sealing element interposed therebetween. The tubular bodies, once coupled, define a common curvature plane and are hinged to each other about a transverse axis, which is substantially perpendicular to the curvature plane to provide for a relative inclination that can be adjusted with a plate-shaped member substantially parallel to the curvature plane and laterally secured to one of the bodies. A plurality of through holes in the plate-shaped member can receive a first pin fitted into a seat formed on the other body to selectively lock the inclination angle.

A rudder-directed tube delivery sprinkler head. A rudder configured to direct water into a tube, triggering distribution of water around an axis. Adjustable stoppers contact a rudder assembly, causing the rudder to pivot, directing water into a different tube and changing the direction of rotation.

A water flow metering device for use as a handheld or ground-based sprinkler includes a device body having a water inlet, a water distribution head in fluid communication with the device body, and a flow pattern selector. The flow pattern selector is coupled to the water distribution head and meters the amount of water sprayed onto the surrounding area. The flow pattern selector includes indicia that provide flow rate information to an operator. A pressure control valve regulates the flow rate in accordance with the information provided by the flow pattern selector. The water flow metering device may also include a timing mechanism having a timer which closes the water supply after a set period of time. A pressure transducer or other flow rate measuring device may allow the timer to operate the device for a predetermined amount of water distribution in inches per hour.

The invention discloses a water spinner structure, where a water inlet member and a water outlet pipe are connected to a driving mechanism; a driving assembly includes a driving member, an impeller is movably connected to the driving member, a first and second impeller driving channel are provided on the driving member, and after water flows into the water inlet member, the impeller is driven to rotate in a first direction through the first impeller driving channel to drive the driving mechanism to rotate to make the water outlet pipe rotate in a circumferential direction, or after water flows into the water inlet member, the impeller is driven to rotate in a second direction through the second impeller driving channel to drive the driving mechanism to rotate to make the water outlet pipe rotate in the circumferential direction, so as to switch the rotation direction of the water outlet pipe.