JPH03120949U - - Google Patents

Description

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a longitudinal sectional view, Figs. 2 and 3 are longitudinal sectional views of main parts showing the state during operation, and Fig. 4 is a longitudinal sectional view of the first tightening mechanism. A cross-sectional view, and FIG. 5 is a plan view of the turning means. 2... Bottom plate, 10... Upper nozzle, 10a...
Upper part of the upper nozzle, 10b... lower part of the upper nozzle, 11... base frame, 13... tightening ring which is one member of the first tightening mechanism and serves as a holder, 14... first annular support , 23...Bracket, 24...Cylinder as a connecting member, 30...
... lower nozzle, 30b ... downwardly tapered tapered portion of the lower nozzle, 33 ... tightening ring as one member of the second tightening mechanism and as a holder, 3
4... Second annular support, 40... Rod with rack gear as lifting means, 41... Also pinion, 42... Arm as turning means, 42a...
...C-shaped portion of the arm.

Claims (1)

[Claims for Utility Model Registration] 1 (a) The upwardly tapered upper part fits into a hole of the same shape formed in the bottom plate of a molten metal container, and the lower part tapers downwardly and is located near the bottom plate of the container. (b) a funnel that is non-rotatable relative to the base frame provided on the bottom plate of the molten metal container and slidable in the axial direction and is suitable for supporting the lower part of the upper nozzle; (c) a first tightening mechanism that tightens the first annular support upward; (d) a first annular support having a shape such that the upper end surface is in close contact with the lower end surface of the upper nozzle; (e) a lower nozzle having an adjacent tapered portion that tapers downward; (f) a second tightening mechanism for upwardly tightening the second annular support located within the holder; (g) a second tightening mechanism for upwardly tightening the second annular support located within the holder; (h) a turning means for receiving and supporting the second annular support detached from the holder and retracting it out of the area directly below the upper nozzle; A structure for attaching a vertically split nozzle to a molten metal container. 2. Both the first and second tightening mechanisms are
The inner periphery is provided with the same number of second cam protrusions that can be engaged with and detached from the plurality of first cam protrusions protruding from the outer periphery of the first or second annular support; a rotatable clamping ring that allows the first cam protrusion to pass vertically through the space;
2. The structure for attaching a vertically split nozzle to a molten metal container according to claim 1, wherein the first or second annular support is always pressed toward the bottom plate by a cam action between the second cam projection and the second cam projection. 3 slidably installed within one of the connecting members;
A rod carved in the vertical direction of the rack gear and a pinion meshed with the rack gear constitute the elevating means, which is rotatably pivoted to the lower part of the rod and supports the lower part of the second annular support. 3. The structure for attaching a vertically split nozzle to a molten metal container according to claim 1 or 2, wherein an arm having a C-shaped portion constitutes the rotating means. 4. The structure for attaching a vertically split nozzle to a molten metal container according to any one of claims 1 to 3, wherein one of the connecting members for attaching the holder to the base frame has a pivot hinge that allows the holder to pivot. .