A sprinkling seat structure for a lawn, comprising a circular frame seat, a connecting disk and a sprinkling rotary cover, wherein:
- the circular frame seat includes a circular peripheral frame and a central water-outgoing seat connected with the peripheral frame by several radial connecting ribs, a connector being disposed on one side of the water-outgoing seat for connecting with a water-incoming tube, the water-outgoing seat being formed with a water-outgoing opening on upper surface for communicating with the connector, several supporting ribs being disposed on inner wall of the water-outgoing opening therearound for resting a water-sealing ring thereon, a central circular fixing hole being formed on the water-outgoing seat adjacent to the water-outgoing opening, several slightly inclined check fixing plates being disposed on inner wall of the fixing hole therearound, a C-shaped slit being formed on one side of the fixing hole, defining a resilient plate, an upward projecting locating post being formed on a free end of the resilient plate;
- the connecting disk is formed with a central hollow downward projecting fixing boss, a free end of the fixing boss being formed with an inclined face having an annular groove, several equally spaced circular holes being formed around the fixing boss, several locating dents being formed on lower surface of the connecting disk respectively on outer sides of the circular holes corresponding to the locating post, a fine thermal fusion circle being formed on the upper face of the connecting disk between the circular holes;
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- the sprinkling rotary cover is a casing with one face open and one face close, having a central sprinkling dome formed with multiple sprinkling meshes, multiple sprinkling holes with various patterns being disposed around the sprinkling dome, wherein a first and a second close holes are opposite to each other, the rotary cover being formed with a peripheral inclined face around the sprinkling holes, which is formed with multiple sprinkling meshes, multiple circular surrounding walls being disposed on inner face of the rotary cover respectively corresponding to the sprinkling holes, a first C-shaped surrounding wall open to inner side and a second C-shaped surrounding wall open to outer side being disposed on inner face of the rotary cover respectively corresponding to the first and second close holes, the circular and C-shaped surrounding walls being connected by connecting walls, whereby when assembled, the thermal fusion circle of the connecting disk is aligned with the connecting walls of the rotary cover and thermally fused therewith by ultrasonic wave so that the circular surrounding walls, C-shaped surrounding walls and the connecting walls together partition interior space of the rotary cover into an outer compartment and an inner compartment and then the fixing boss of the connecting disk is inserted into the fixing hole of the frame seat, the inclined face of the fixing boss passing through and expanding the check fixing plates of the fixing hole, so that the ends of the check fixing plates resiliently abut against and engage with the annular groove of the fixing boss, a clearance being defined between the fixing boss and the wall of the fixing hole so that the rotary cover can be rotated, and when the rotary cover is rotated to align one of the circular holes of the connecting disk with the water-outgoing opening of the water-outgoing seat, the locating post of the resilient plate being resiliently fitted into the locating dent beside the circular hole, the connector of the frame seat being then connected with the water-incoming tube so that the water can flow into the water-outgoing opening of the water-outgoing seat to be sprinkled outside from the sprinkling holes and the sprinkling meshes of the central sprinkling dome and the peripheral inclined face of the rotary cover.