Pipeline control device

• Main Authors: KUANG JIN, LUO YUANFEI
• Format: Patent
• Language: Chinese; English
• Published: 30.11.2021
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; SURGERY

The utility model relates to a pipeline control device which comprises a piston component, an installation component and a spring. The piston component comprises a plastic piston shaft and a plastic cap; the plastic cap is connected with the plastic piston shaft through a buckle; the upper portion of the plastic piston shaft is a cavity, and a bearing assembly, a sealing assembly and a communicating hole are arranged on a shaft body of the plastic piston shaft. The sealing assembly comprises a plurality of sealing rings which are respectively arranged above and below the communicating hole; the mounting component is a plastic component, the mounting component is a hollow cylinder with an opening in the upper end, a plastic piston shaft fixing position is arranged in the mounting component, and the plastic piston shaft is movably fixed in the longitudinal direction through the fixing position; and the spring is sleeved outside the plastic piston shaft and is supported between the plastic cap and the mounting p