设备维修、保养作业中加注油脂用的油枪枪嘴,因其出油孔小(仅为φ0.8mm),易被油脂中的杂质堵塞,清理不便。笔者经反复摸索、试验,设计了一种防堵油枪嘴,其结构见图1。枪嘴1仍采用原件,橡胶管2和滤管3是新增加的零件。滤管下端封闭,其管壁上有几条0.3mm的切口。油脂在高压作用下从切口进入滤管后到达枪嘴。由于切口仅0.3mm宽,比枪嘴的出油孔φ0.8mm小许多,所以能起到过滤油脂的作 Equipment maintenance, maintenance operations with grease gun nozzle, because of its small oil hole (only φ0.8mm), easily blocked by impurities in the grease, cleaning up inconvenience. After repeated exploration, test, the author designed a plugging nozzle, the structure shown in Figure 1. The muzzle 1 still uses the original, the rubber tube 2 and the filter tube 3 are newly added parts. The lower end of the filter tube closed, the wall has a few 0.3mm incision. Grease under high pressure from the incision into the filter to reach the muzzle. Because the incision is only 0.3mm wide, a lot smaller than the muzzle nozzle φ0.8mm, it can play a role in filtering grease