Sealing structure for sewage pump and sewage pump comprising sealing structure

The utility model discloses a sealing structure for a sewage pump and the sewage pump comprising the sealing structure, the sewage pump comprises a pump shell, a rotating shaft which is arranged in the pump shell and extends out of the end of the pump shell, and a sealing cover which is arranged on...

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Bibliographische Detailangaben
Hauptverfasser:	MAO KEQIANG, WANG SICHANG, YIN YUXI, PENG LUN, WU QUANBO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING HEATING LIGHTING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	The utility model discloses a sealing structure for a sewage pump and the sewage pump comprising the sealing structure, the sewage pump comprises a pump shell, a rotating shaft which is arranged in the pump shell and extends out of the end of the pump shell, and a sealing cover which is arranged on the rotating shaft in a sleeving mode and covers the end of the pump shell, and the sealing structure is arranged among the pump shell, the rotating shaft and the sealing cover. The sealing structure comprises a first oil seal, a second oil seal and lubricating grease. The second oil seal is farther away from the sealing cover than the first oil seal, a sealing lip of the second oil seal is in butt joint with a sealing lip of the first oil seal, so that an annular cavity surrounding the rotating shaft is formed between the first oil seal and the second oil seal, and the lubricating grease is arranged in the annular cavity. The sealing structure provided by the utility model not only can effectively prevent sewage i