Seal structure of diaphragm pump head cover

The present invention relates to a seal structure of a diaphragm pump head cover. The seal structure comprises a pump head cover, a seal ring, a water outlet pressure plate and a diaphragm leaf, wherein the seal ring is disposed between the pump head cover and the water outlet pressure plate, and th...

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Bibliographic Details
Main Authors XIE WUBIN, HUANG JIAN, GAO CHENYANG
Format Patent
LanguageEnglish
Published 02.12.2015
Subjects
BLASTING
HEATING
LIGHTING
MECHANICAL ENGINEERING
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
WEAPONS
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Summary:The present invention relates to a seal structure of a diaphragm pump head cover. The seal structure comprises a pump head cover, a seal ring, a water outlet pressure plate and a diaphragm leaf, wherein the seal ring is disposed between the pump head cover and the water outlet pressure plate, and the water outlet pressure plate is arranged on a top face of the diaphragm leaf in a coordinating manner. The seal structure is characterized in that annular stepped grooves are disposed on an inner side of the pump head cover, and stepped faces coordinating with the annular stepped grooves are disposed on one side, facing the pump head cover, of the seal ring. According to the seal structure of the diaphragm pump head cover, a plurality of seal faces are formed between the seal ring and the pump head cover, thereby enhancing sealing reliability.
Bibliography:Application Number: CN20151573831