Mechanical sealing structure with high back pressure bearing capacity

• Main Authors: WEI HONGTAO, WANG ZONGHONG, SUN ZHIXIA, LI MENGYANG
• Format: Patent
• Language: Chinese; English
• Published: 12.01.2021
• Subjects: BLASTING; CYLINDERS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; PISTONS; SEALINGS; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model discloses a mechanical sealing structure with strong back pressure bearing capacity, which comprises a static ring and a moving ring seat, a moving ring is additionally arranged on one side of the static ring, a rubber corrugated pipe is additionally arranged on the inner side of the moving ring seat and is in sealing fit with the inner side of the moving ring seat, and one end of the moving ring is in sealing connection with the front side of the rubber corrugated pipe. The other side of the movable ring is connected with the rear side of the step static ring in a sealed mode, and a rubber L pad is fixedly arranged on the front side of the static ring. According to the mechanical sealing structure with the high back pressure bearing capacity, the static ring is of a step-shaped structure and can be fixed through the pressing plate, and the static ring is prevented from disengaging from the static ring cavity; and the rubber corrugated pipe is provided with the anti-falling movable ring seat