| 摘要 |
PURPOSE: A pollution preventing structure of a grease pump is provided to prevent the leakage of the grease from a grease can by applying a dual structure rubber packing to the circumference of an insert plate of the grease pump. CONSTITUTION: A grease pump comprises a pump body supplying the substantial pumping force, a driving cylinder connected to the pumping body to lift up and down the pumping body, an insert plate(14) mounted to a lower end of the pumping body, an air suction hose installed on the insert plate, and a grease suction hose. A packing material(20a) having a dual structure rubber packing(22) is applied to the circumference of the insert plate to prevent the leakage of the grease from a grease can(16).
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