Patent ID: 11898660
Assignee: BUENO TECHNOLOGY CO., LTD.
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F | IPC F

Claim 2:
3. The sealing mechanism of the fluororesin diaphragm valve as claimed in claim 1, wherein the force-applying member is an upper valve body, the upper valve body includes a locking screw thread, a shaft hole, one or more annular grooves, a plurality of groove ribbed plates, a diaphragm chamber, and a tightening groove; the tightening groove has a tightening surface; the internal ring surface of the annular portion is provided with an internal screw thread, the locking screw thread is tightly engaged with the internal screw thread; the upper valve body is tightly locked to the internal screw thread, the tightening ring is installed in the tightening groove; and an axial distribution position of the ribbed plate structure contains the minimum diameter area and a plurality of screw threads of the external screw thread.