Pressure self-adaptive nozzle

• Main Authors: DU QILANG, LIU CHENGLIANG, LIU MING
• Format: Patent
• Language: Chinese; English
• Published: 22.08.2023
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The utility model discloses a pressure self-adaptive nozzle which is characterized in that the pressure self-adaptive nozzle comprises an outer shell, a sliding rod, a movable sliding sleeve, a spring and a limiting nut, the spring is installed in the movable sliding sleeve, the movable sliding sleeve and the spring are connected to the sliding rod in a sleeved mode, and the two end faces of the spring are limited by steps on the movable sliding sleeve and the sliding rod. The sliding rod and the outer shell can be fixedly connected with the nozzle shell in a threaded mode, a welding mode and the like, the lower end of the sliding rod is connected with the limiting nut in a threaded mode, and the technical problem that in the prior art, bit balling and chip groove balling occur in the working process of a PDC bit is solved through the pressure self-adaptive nozzle. 本实用新型公开了一种压力自适应喷嘴，其特征在于，包括外壳体、滑动杆、活动滑套、弹簧、限位螺帽，活动滑套内安装有弹簧，活动滑套和弹簧一起套接于滑动杆，弹簧两端面受活动滑套和滑动杆上的台阶限位，滑动杆和外壳体可以通过螺纹、焊接等方式与喷嘴外壳固定连接，滑动杆下端与限位螺帽通过螺纹连接，本实用新型