Double-runner oil well pump

• Main Author: ZOU SHUJUN
• Format: Patent
• Language: Chinese; English
• Published: 21.07.2023
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model discloses a double-runner oil well pump, and relates to an oil well pump. The oil well pump aims to solve the problem that an existing oil well pump is insufficient in efficiency. The plunger pump comprises an upper pump cylinder (1) and a plunger (2), the plunger (2) is embedded in the upper pump cylinder (1) in a sliding mode, the plunger pump further comprises a shell (3), the shell (3) is arranged on the plunger (2) in a sleeved mode, the shell (3) and the lower end of the upper pump cylinder (1) are connected into a whole, a plurality of first liquid inlet holes (4) are formed in the lower portion of the shell (3) in the circumferential direction of the shell (3), the plunger (2) comprises an upper plunger (5) and a lower plunger (6), the upper plunger (5) and the lower plunger (6) are in flexible connection, and the first liquid inlet holes (4) are communicated with the first liquid inlet holes (4). And the lower plunger (6) is a hollow plunger which is a second liquid inlet hole (7).