The utility model discloses a three-jaw quick joint automatic opening and closing ball valve used for connecting a sprinkling standpipe and a sprinkler.
本实用新型是用于连接喷灌立管和喷头的一个三爪快速接头的自动开关球阀。
The utility model can also be used for back flushing bag dust collectors and automatic opening and automatical closing devices on non corrosion fluid flow passages.
本实用新型还能应用于反吹布袋除尘器，以及无腐蚀流体通道上的自动开闭装置。
The utility model relates to an automatic opening and closing device of a bus door. The utility model particularly relates to an automatic sliding device of the bus door.
本实用新型涉及一种客车车门的自动启闭装置，特别是一种客车车门自动滑移装置。
The utility model relates to a thermal insulation kettle cork with automatic opening and closing, comprising a kettle cover, a kettle cork and an automatic opening and closing mechanism.
本实用新型涉及一种自动开关保温壶塞，它由壶盖、壶塞及自动开关机构组成。
Automatic opening function is realized by contra - parallelogram mechanism. Optimal kinematic scheme is obtained by the kinematic and mechanical analysis of the contra-parallelogram.
自动开关门功能是采用反平行四边形机构实现的，针对这一机构的运动特性及力学性能进行了分析并得出最佳的运动方案。
Automatic opening function is realized by contra - parallelogram mechanism. Optimal kinematic scheme is obtained by the kinematic and mechanical analysis of the contra-parallelogram.
自动开关门功能是采用反平行四边形机构实现的，针对这一机构的运动特性及力学性能进行了分析并得出最佳的运动方案。
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