Water-pump impeller
The utility model relates to a water-pump impeller and belongs to the technical field of water pumps. The water-pump impeller comprises a diving-pump impeller, a driving shaft, a blade and a wheel disk, wherein the diving-pump impeller is made of plastics, the blade is arranged on the wheel disk, a...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model relates to a water-pump impeller and belongs to the technical field of water pumps. The water-pump impeller comprises a diving-pump impeller, a driving shaft, a blade and a wheel disk, wherein the diving-pump impeller is made of plastics, the blade is arranged on the wheel disk, a guide-blade opening-connecting hole is arranged in the wheel disk, the driving shaft is connected with the diving-pump impeller through the connecting hole, a guide-blade cover plate is arranged on the wheel disk and the blade, and a cushioning device is arranged on the contact surface of the diving-pump impeller and the guide-blade cover plate. The water-pump impeller can perform a cushioning action through the cushioning device which is arranged on the contact surface of the diving-pump impeller and the guide-blade cover plate; the cushioning device is an inner rubber diaphragm ring, so that the friction of between the diving-pump impeller and the guide-blade cover plate is reduced when the diving-pump impeller w |
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