Protection structure of needle-shaped adjustable throttle valve of oil well Christmas tree

The utility model provides a protective structure of a needle-shaped adjustable throttle valve of an oil well Christmas tree. The protective structure comprises a protective cover, a first sealing ring and a second sealing ring. The protective cover is composed of a hollow straight pipe body and a cover body located at one end of the hollow straight pipe body, a ring groove is integrally formed inthe inner wall of the end, deviating from the cover body, of the hollow straight pipe body, a first sealing ring is arranged in the ring groove, a ring groove is integrally formed in an inner hole ofthe cover body, and a second sealing ring is arranged in the ring groove. The throttle valve can effectively prevent dust, water and moisture from corroding the dial and the rotating part of the throttle valve, prolong the service life of the throttle valve and reduce the cost. 本实用新型提供一种油井采油树针形可调式节流阀的防护结构，其包括护罩、第一密封圈以及第二密封圈；该护罩为中空直形管体和位于该中空直形管体一端的盖体构成，该中空直形管体背离盖体一端内壁一体成型一个圈槽，该圈槽内设有第一密封圈，该盖体内孔一体成型一个圈槽，该圈槽内设有第二密封圈；能够有效防止灰尘、