Ring seal assembly of bidirectional metal seal structure
A ring sealing and metal sealing technology, which is applied in the directions of sealing/isolation, wellbore/well parts, earthwork drilling and mining, etc., can solve the problems of complicated and time-consuming loading and unloading procedures, affecting sealing performance, and damage to sealing parts, etc., and achieves compact structure, Effects of improving efficiency and extending service life
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[0016] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0017] It includes a sealed driving sleeve 2, the upper part of the inner hole of the sealed driving sleeve is socketed with the lower part of the locking sleeve 3, and the lower part of the inner hole of the sealed driving sleeve is socketed with the upper part of the metal sealing ring 1; the outer peripheral upper part of the locking sleeve is provided with a ring The groove is equipped with a wellhead lock ring 4. The wellhead lock ring is an elastic ring with one side cut, which is tightly hooped in the ring groove. The upper end of the ring groove is inclined outward by 40-60° to form a conical surface. The wellhead lock The inner side of the upper end face of the ring is also provided with corresponding chamfers, so that when the locking sleeve goes down, the well head lock ring escapes from the ring groove outwards, the lower end face of the well ...
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