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发明名称
防砂抽油泵
摘要
本实用新型的工作方式与现有的抽油泵相同,但打破以往采用钢活塞的贯例,是采用一种软质活塞材料。它有变形性能,当活塞下行程时,软活塞环向上弯曲。当活塞上行程时,软活塞环向下弯曲,这样一方面起到密封作用,另一方面可将油井砂子带出泵筒,另一种橡胶环结构是开口向上安装,既可以有效地密封,也可有带出砂子的作用,避免泵筒的磨损,为此可称为防砂抽油泵。
申请公布号
CN86208160U
申请公布日期
1987.12.05
申请号
CN86208160
申请日期
1986.10.21
申请人
王永安
发明人
王永安
分类号
F04B47/00
主分类号
F04B47/00
代理机构
代理人
主权项
1、一种防砂抽油泵,由泵筒、上凡尔、活塞、下凡尔、引导头和固定凡尔组成,本实用新型的特征在于活塞上的活塞环是由软质材料制成。
地址
辽宁省盘锦市渤海兴油技术服务站
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