JPH0450766U - - Google Patents

Description

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view showing an example of a fixed ring for a mechanical seal according to this invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a longitudinal sectional view showing another embodiment of this invention. Figure 4 is a front view of Figure 3, Figure 5 is a vertical sectional view of the main parts showing the structure of a mechanical seal for a submersible pump, Figure 6 is a vertical sectional view of a conventional fixed ring for a mechanical seal, and Figure 7 is a vertical sectional view of a conventional fixed ring for a mechanical seal. FIG. 6 is a front view of FIG. 6; 2... Rotating shaft, 3... Seat ring (rotating sliding contact ring), 6... Seal ring, 6a... Sliding surface, 6
A...Recessed portion, 7...Retaining ring.

Claims (1)

[Scope of utility model registration request] A seal ring having a sliding surface to which a rotating sliding ring attached to the outer periphery of the rotating shaft is elastically pressed against the axial direction, and a housing into which the rotating shaft fitted to the outer periphery of the seal ring is inserted. A fixed ring for a mechanical seal comprising a retaining ring made of an elastic material that is fitted into a recess of the seal ring, in which a recess is formed inward in the rotational radial direction at at least one location in the circumferential direction on the outer peripheral surface of the seal ring. A fixed ring for a mechanical seal, characterized in that an inner peripheral surface portion of the retaining ring made of an elastic material is inserted into the recessed portion, and the retaining ring is integrally shrink-fitted to the outer periphery of the seal ring.