Oil casing outer limiting device
The invention discloses an oil casing outer limiting device. The oil casing outer limiting device comprises a locking ring and a compression ring, wherein ratchet teeth are arranged inside and outsidethe locking ring; ratchet teeth are arranged on one side of the inner wall of the compression ring,...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses an oil casing outer limiting device. The oil casing outer limiting device comprises a locking ring and a compression ring, wherein ratchet teeth are arranged inside and outsidethe locking ring; ratchet teeth are arranged on one side of the inner wall of the compression ring, and an inclined plane with an angle is arranged on the other side of the inner wall of the compression ring; and the compression ring and the locking ring are connected through the ratchet teeth. According to the oil casing limiting device, when the compression ring and the locking ring are assembled through special tools, the inclined plane on the lower part of the compression ring extrudes the ratchet teeth in the locking ring, thus the whole structure is fixed to an oil casing to form limiting, and connection is more compact and not prone to loosening.
本发明公开了种油套管外限位装置,该装置包括:锁紧环,该锁紧环内部及外部带有棘齿;压紧环,该压紧环内壁侧带有棘齿,内壁另侧带有具有角度的斜面;该压紧环与该锁紧环之间通过棘齿连接。使用本发明的油套管限位装置,压紧环与锁紧环通过专用工具装配时,压紧环下部斜面挤压锁紧环内部棘齿使整个结构固定在油套管上形成限位,连接更为紧密不易松动 |
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