Abstract: A window blinds damper has at least one damping device, at least one damper, a rewinding device, and a plurality of slats. The damping device has a main body with a damper housing having a through aperture and a securing axle. The damper has a first main body and a second main body, the first main body having a first pivot for mounting in the damper housing, and the second main body having a second pivot for mounting in the first main body. The first main body further has a steering wheel lever, a steering axle, and a first securing rod, and the second main body further has two securing spindles and a second securing rod.

Abstract: A window blinds mechanism has a blinds member, a rope reel and at least two dampers. The rope reel has a bottom casing, a first rolling wheel, a second rolling wheel, a plurality of planetary gears, a top casing, a driving wheel and an upper cover. The driving gear of the first rolling wheel is engaged with the driving wheel through the planetary gears, with the high reduction ratio of the planetary gears, the spring rate of the scroll spring can be reduced which reduces the length and volume of the scroll spring. It not only helps to reduce the cost of the scroll spring, but also allows the flexibility to choose the number of the scroll spring according to the curtain material volume.

Abstract: A string coiling unit is mounted in a top frame of a window shade without a pull cord. The string coiling unit includes a casing receiving a vortex spring device and two reels operably connected to the vortex spring device. Two axles are mounted in the casing. A guiding wheel is mounted around each axle, is shorter than the axle, and includes an annular first groove for receiving one of the driving strings. Each driving strings is wound around a deflecting portion of one of two string guiding mechanisms before extending through the shade unit in the vertical direction, such that drag and hindrance to portions of the two driving strings extending in the horizontal direction caused by the weight of the shade unit are interrupted to reduce deviation of the two driving strings wound around the two reels.

Abstract: The invention relates to a shield assembly of low-flow sprinkler comprises: a support body, a low-flow sprinkler assembly arranged in the support body and a plurality of shield units sequentially combined to form an arc-shaped shield to be easily installed on the low-flow sprinkler and convenience to adjust sprinkling orientation for the required sprinkling area and to increase or decrease the number of shield units for adjusting the sprinkling angle in order to enhance sprinkling orientation and angle precision.

Abstract: The invention relates to an underground liftable low-flow sprinkler comprises: a subterranean cylindrical housing arranged under the ground and having a first and second containing room with different diameter and a lifting tube being storable in the first containing room and a low-flow sprinkler being storable in the second containing room. The low-flow sprinkler provides a screw tube screwing on an upper end of the lifting tube for lifting together. When the water is sent into a water inlet, the lifting tube in the first containing room is moved upward by water force. The low-flow sprinkler then extends out from the second containing room and the water flows through a nozzle, swinging base and other components to circularly sprinkle an annular region. The present invention has low flow and uniform sprinkle characteristics to achieve an ease of use and water conservation effects.

Abstract: The invention relates to a shield assembly of low-flow sprinkler comprises: a support body, a low-flow sprinkler assembly arranged in the support body and a plurality of shield units sequentially combined to form an arc-shaped shield to be easily installed on the low-flow sprinkler and convenience to adjust sprinkling orientation for the required sprinkling area and to increase or decrease the number of shield units for adjusting the sprinkling angle in order to enhance sprinkling orientation and angle precision.

Abstract: The invention relates to an underground liftable low-flow sprinkler comprises: a subterranean cylindrical housing arranged under the ground and having a first and second containing room with different diameter and a lifting tube being storable in the first containing room and a low-flow sprinkler being storable in the second containing room. The low-flow sprinkler provides a screw tube screwing on an upper end of the lifting tube for lifting together. When the water is sent into a water inlet, the lifting tube in the first containing room is moved upward by water force. The low-flow sprinkler then extends out from the second containing room and the water flows through a nozzle, swinging base and other components to circularly sprinkle an annular region. The present invention has low flow and uniform sprinkle characteristics to achieve an ease of use and water conservation effects.