Ventilation structure for duck breeding
The utility model discloses a ventilation structure for duck breeding, and belongs to the technical field of ventilation devices. A ventilation structure for duck breeding comprises a fixing frame; the shell abuts against the fixing frame; the mounting block is fixedly connected with the shell; the...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The utility model discloses a ventilation structure for duck breeding, and belongs to the technical field of ventilation devices. A ventilation structure for duck breeding comprises a fixing frame; the shell abuts against the fixing frame; the mounting block is fixedly connected with the shell; the first rotating shaft is rotationally connected with the mounting block; the transmission ring fixedly sleeves the first rotating shaft; the clamping block is clamped with the fixing frame; the limiting block is fixedly connected with the fixing frame; the knob is fixedly connected with the first rotating shaft; the first torsional spring sleeves the first rotating shaft, and two ends of the first torsional spring are fixedly connected with the mounting ring and the knob respectively; the fixed plate is fixedly connected with the shell; the motor is fixedly connected with the fixed plate; the connecting ring is fixedly connected with a driving shaft of the motor; the fan blades are fixedly connected with the connect |
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