JPH0242996U - - Google Patents

Description

[Brief explanation of drawings]

1 to 4 are views showing one embodiment of the sealing device according to the present invention, in which FIG. 1 is a front view, and FIG.
The figure is a cross-sectional view taken along line 2-2 in Figure 1.
The figure is a cross-sectional view showing the state in which it is attached to a mine wall, and FIG. 4 is a cross-sectional view showing the state in use. FIG. 5, FIG. 6, FIG. 7, and FIG. 8 are enlarged views of main parts showing other embodiments of the caul plate used in the sealing device of the present invention. FIG. 9 is a front view showing still another embodiment of the patch plate, FIG. 10 is a front view showing still another embodiment of the sealing device, and FIG. 11 is a front view taken along line 11-11 in FIG. FIG. 10, 52: Seal device, 12a, 12b: Hollow body, 14: Starting shaft, 16: Pit wall, 18: Starting port, 20: Seal plate, 20a: Inner peripheral part, 20b:
Outer periphery, 22, 40, 42, 44, 46, 48:
Back plate, 22a, 40a, 42a, 44a, 46
a: Annular region, 22b, 40b, 42b, 44
b, 46b, 48b: protruding piece, 24, 28, 62
: Hole for receiving a hollow body, 48a: Portion forming an annular region when combined, 50: Plate member, 54: Backing plate, 56: Projecting piece.

Claims (1)

[Claims for Utility Model Registration] (1) To seal between a hollow body received in a starting port formed in a shaft wall of a starting shaft for constructing a tunnel or laying a conduit and said shaft wall. A sealing device disposed on the shaft wall, comprising: an elastically deformable inner circumferential portion defining a hole for receiving the hollow body; and an outer circumferential portion surrounding the inner circumferential portion and continuing integrally with the inner circumferential portion. a sealing plate that is attached to the shaft wall at the outer peripheral portion thereof, and a backing plate superimposed on the sealing plate, the backing plate being attached to the shaft wall so as to press the outer peripheral portion of the sealing plate. an annular region to be attached, and a plastically deformable or elastically deformable region that protrudes from the inner peripheral edge of the region toward the center of the patch plate, is sequentially arranged along the inner peripheral edge, and continues integrally with the region. a plurality of protruding pieces, the protruding pieces defining a hole having a diameter larger than a diameter of the hole in the sealing plate. (2) A seal placed on the shaft wall so as to seal between the hollow body received in the starting port formed in the shaft wall of the starting shaft for constructing a tunnel or laying a conduit and the shaft wall. The device has an elastically deformable inner circumference defining a hole for receiving the hollow body, and an outer circumference surrounding the inner circumference and integrally following the inner circumference. a sealing plate attached to the pit wall; an annular backing plate superimposed on the outer peripheral portion of the sealing plate;
Plastically deformable or elastically deformable plastic or elastic deformable plates are arranged sequentially along the inner peripheral edge of the backing plate on the side opposite to the sealing plate so as to protrude from the inner peripheral edge of the corresponding plate toward the center of the corresponding plate. a plurality of plate-shaped projecting pieces, the projecting pieces cooperating with each other defining a hole having a diameter dimension larger than a diameter dimension of the sealing plate.