Plunger device with bidirectional self-buffering function

• Main Authors: TAN BO, LI XURI, LI YANBIN, LI YAODE, JIA YOULIANG, SONG JIE, TIAN WEI, LI SIYING, SONG HANHUA, HUI YANNI
• Format: Patent
• Language: Chinese; English
• Published: 11.07.2023
• 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 invention relates to the technical field of gas field mining equipment, in particular to a plunger device with a bidirectional self-buffering function, which comprises a plunger part and two movable parts positioned in the plunger part, and the movable parts are symmetrically arranged by taking a vertical plane of the length axis of the plunger part as a symmetric plane; the movable part comprises a buffer spring and two guide rods, the length axis of the plunger part is coaxial with the telescopic axis of the buffer spring, one end of each guide rod is connected with the buffer spring, the other end of each guide rod extends out of the end of the plunger part, and the guide rods are in sliding connection with the plunger part; a first through groove is formed in the guide rod, and the length axis of the first through groove communicates with the interior of the plunger part. According to the plunger device with the bidirectional self-buffering function, the purpose of bidirectional self-buffering plunger