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CN202338213U 一种油管伸缩短接 失效 - 权利终止

一种油管伸缩短接
摘要：
一种油管伸缩短接，其特征是内管(3)一端连接接箍(1)，另一端外壁上安装有胶圈(4)，其管外还套装有外管(2)，外管(2)一端连接接头(5)，另一端也安装有胶圈(4)。本实用新型结构简单、操作方便、工作可靠，用于油田冲砂、洗井等过程中安装于水龙头下端，可通过内管(3)和外管(2)实现轴向和径向的相对移动，从而降低了油管柱加单根的施工难度。
摘要（英）：

The utility model relates to an oil pipe extension pup joint which is characterized in that one end of an inner pipe (3) is connected with a coupling (1); a rubber ring (4) is arranged on the outer wall of the other end of the inner pipe (3); an outer pipe (2) is also sleeved outside the inner pipe; one end of the outer pipe (2) is connected with a joint (5); and the rubber ring (4) is also arranged at the other end of the outer pipe (2). The oil pipe extension pup joint has a simple structure, is convenient to operate, is reliable in work, is used in the processes of sand washing, well washing and the like of an oil field and is arranged at the lower end of a faucet. The axial and radial relative movement can be implemented by the inner pipe (3) and the outer pipe (2), so that the construction difficulty in adding a single tubing string is reduced.

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