JPS6017891B2 - Watertight device between doors of two-stage sliding gate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a watertight device between doors of a two-stage sliding gate.

In order to maintain watertightness between the upper and lower doors of this type of two-tiered gate, a watertight rubber 31 with a U-shaped cross section is attached to the upper part of the lower door 32 over the entire length in the longitudinal direction, as shown in Figure 1. Watertight rubber 31 was slidably pressed against the skin plate surface of the upper door 33 to maintain watertightness on the upstream and downstream sides.

However, in the watertight rubber 31 as described above, horizontal deflection occurs between the doors due to changes in the water level from the upstream and downstream sides and changes in the hydraulic load acting on each of the upper and lower doors 32 and 33 due to the vertical positional relationship of the upper and lower doors. This fluctuation in the amount of deflection makes it impossible to maintain watertightness, and the skin plate surface of the upper door 33 has to be made of an expensive material such as a stainless steel plate or a stainless clad steel plate. The object of the present invention is to provide a watertight device for a two-stage sliding gate that can eliminate the drawbacks of the above-mentioned secondary gates.

The present invention will be described with reference to embodiments shown in the drawings.

In Figs. 2 to 4, 1 is an upper door and 2 is a lower door, and these upper and lower doors 1 and 2 have rectifying sections 3 at a desired height at the tops of both sides.
, 4.

A plurality of rollers 5 and 6 are vertically arranged on the outward facing surfaces of the rectifying sections 3 and 4, respectively, and these rollers 5 and 6 are mounted in longitudinal grooves 8 formed in the pear 7 so as to be freely movable. Wira ropes 9, 10 are attached to the upper portions of the rectifiers 3, 4, and the upper and lower doors 1, 2 are suspended and raised and lowered via the ropes by means of a winding bag (not shown). Between the upper and lower doors 1 and 2, one end is connected to the upper part of the skin plate surface of the upper door 1 by a mounting bracket 11, and the other end is connected to the upper part of the skin plate surface of the upper door 1 by a mounting bracket 1.
2, a membrane-like watertight rubber 13 attached to the upper part of the skin plate surface of the lower door 2 is suspended and bent over the entire length in the longitudinal direction. A vertical notch 14 is formed on the roller 6 side of the lower door 2 and its rectifying section 4 facing the upper door 1, and this notch has a cross section extending from the upper end of the rectifying section 4 to the upper end of the lower door 2. A Y-shaped side elastic rubber 15 is disposed via a mounting plate 16, and its tip is attached to the surface of a retaining plate 17 which is provided on the upper door 1 at the same height as the rectifying section 3 and protrudes toward the lower door 2 side. Slidably pressed together. Further, a rubber plate 18 having a U-shaped cross section is attached to both green sides of the watertight rubber 13 with bolts, etc., and the rising part of the rubber plate 18 touches the skin plate surface of the upper door 1, and the lower end of the rubber plate 18 hits the lower end of the elastic rubber 15. Similarly, the tip of the rubber plate 18 is pressed against the surface of the holding plate I7 so as to be super movable. A dustproof plate 19 is disposed horizontally on the upper side of the U-shaped rubber attachment part of the lower door 2 to prevent dust from entering into the watertight rubber 13.

A guide roller 20 is rotatably disposed at the tip of the dustproof plate 19 to ensure smooth and stable lifting of the watertight rubber 13 and to prevent deformation of the watertight rubber 13 when reverse water pressure is applied. . In addition, in FIG. 4, 21' is a side elastic rubber with a Y-shaped cross section extending from the upper end of the rectifying part 4 to the lower end of the lower door 2. It is slidably pressed against the Next, the operation of the above embodiment will be explained.

As shown in FIG. 2, in order to open the upper door 1 from the state where the upper and lower doors 1 and 2 block water on the upstream side and maintain watertightness with the watertight rubber 13, the upper door 1 must be opened while the lower door 2 is stopped. is lowered by a hoisting device via a wire rope 9.

When it descends to a position lower than the upstream water level, the upstream water will overflow from the top of the upper door 1 to the downstream side, and if it continues to descend further, the upper door 1 will reach near the bottom of the channel and become fully open. . At this time, the watertight rubber 13 is guided by the surface of the guide roller 201 and does not undergo major deformation, and the rubber plates 18 provided on both sides slide in pressure contact with the holding plate 17 to maintain watertightness between the doors. Make sure to keep it. Further, when the upper and lower doors 1 and 2 are moved up and down, the elastic rubbers 15 and 21 elastically hold the space between the upper and lower doors 1 and 2 and between the lower door 2 and the pier 7, so that the operation is smooth.
Contrary to the above, in order to open the lower door 2 from the state shown in FIG.
0 by means of a hoisting device.

In this way, the bottom water on the upstream side can flow to the downstream side, and the action of the watertight rubber 13 in this case is the same as described above. Since this invention is configured as described above, it is possible to reliably maintain watertightness with the membrane-like watertight material without considering the deflection between the doors at all, and the sliding parts of the watertight material are only on both side edges. Since there is no sliding on the skin plate surface of the upper door unlike with a kettle, the upper and lower doors can be raised and lowered smoothly, and the core skin plate surface does not have to be made of expensive stainless steel plate, so it is economical. It has excellent effects such as

[Brief explanation of the drawing]

Fig. 1 is an enlarged sectional view of the main part of the conventional device, Fig. 2 is an overall schematic side sectional view showing an embodiment of the present invention, Fig. 3 is an enlarged cross-sectional plan view of the rhombus (only one end is shown), and Fig. 4. is shown in Figure 3 W-W
It is a sectional view along a line. DESCRIPTION OF SYMBOLS 1... Upper door, 2... Lower door, 3, 4... Rectifier, 5, 6... Roller, 11, 12... Mounting bracket, 1
3... Membrane watertight rubber, 14... Notch, 15, 21
... Elastic rubber, 17... Holding plate, 18... Rubber plate, 19... Dust-proof plate, 20... Guide roller. Kabuto l Zuren 2 books 3 books 4 books

Claims (1)

[Claims] 1. In a door-to-door watertight device for a two-stage sliding gate that maintains watertightness between a lower door and an upper door, one end is located above the skin plate surface of the upper door, and the other end is located between the lower door and the upper door. The membrane-like watertight material attached to the upper part of the skin plate surface of the lower door is bendably suspended over the entire length in the longitudinal direction, and the retaining plate that slidably holds both edges of this watertight material is attached to the upper door. A watertight device between doors of a two-stage sliding gate, characterized in that it is disposed on both sides facing the lower door.