Speed measuring mechanism of water impact force flow velocity meter

The utility model discloses a speed measuring mechanism of a water impulsive force flow velocity meter, which comprises a support, a rotating shaft arranged on the support and vertically connected with a connecting rod, one end of the connecting rod is connected with a hollow sphere, a water inlet hole is arranged at the bottom of the sphere, an air hole is arranged on the sphere, and the water inlet hole and the air hole are both communicated with an inner cavity of the sphere. The support is further provided with an encoder, and the encoder encodes and outputs the rotating angle of the rotating shaft. The speed measuring mechanism of the water impulsive force flow meter can be suitable for water flows with different silt contents, can effectively avoid winding of grass flocs in water, and is accurate in speed measurement and convenient to use. 本实用新型公开了一种水冲力流速仪的测速机构，包括支架，在支架上设有转轴，转轴与连杆垂直相连，连杆的一端与一空心球体相连，在球体的底部设有进水孔，在球体上设有透气孔，进水孔和透气孔均与所述球体的内腔相连通，在支架上还设有编码器，编码器将所述转轴的转动角度编码并输出。该水冲力流速仪的测速机构能适合不同泥沙含量的水流，而且可以有效避免水