JP2518402Y2 - Watertight structure of surface intake gate of double intake facility - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial application] The present invention enables easy installation and maintenance of the watertight structure of the surface intake gate of a double intake facility.
Further, the present invention relates to a watertight structure of the surface water intake gate of the double-type water intake facility capable of reliably ensuring the watertightness.

[0002]

2. Description of the Related Art The watertight structure of a surface intake gate of a conventional double intake system is generally as shown in FIGS.
The watertight rubber 21 is attached to the tip of the eaves body 9 stretched in the upstream direction at equal intervals vertically on the door gate (bank wall) 8 side, and the watertight rubber 21 and the skin plate 3 surface of the gate door body 2 are Since there is no problem in terms of ensuring the watertightness because the watertightness is secured between the two, the position where the watertight rubber 21 is attached is below the water surface and reaches a deep position during the installation and maintenance inspection. In most cases. Therefore, when diving in the work such as attaching or replacing the watertight rubber 21, a special diving work is required by a diver, and a restricted dangerous underwater work and a lot of working time are required. Is.

When the work is not performed by the diver, the water level of the water source must be lowered by discharging the water, and the work scaffold must be assembled on the extension of the watertight rubber installation. This not only wastes valuable water resources, but also prolongs the construction period and increases construction costs.

[0004]

SUMMARY OF THE INVENTION The present invention avoids underwater work when performing work such as installation and maintenance of the watertight structure of the surface water intake gate of a double intake facility, and also scaffolding and assembly thereof. There has been a strong demand from related parties to develop a watertight structure for the surface intake gate of the double intake system that can be performed safely and quickly without the need for water.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above point of view, and in a surface water intake gate of a double water intake facility, the entire surface is provided on the downstream side surface of the skin plate of the gate door body. A flat water-tight rubber material is attached to cover the water-tight rubber material and the watertight action is performed between the water-tight rubber material and the tip of the eaves stretched in the upstream direction at equal intervals on the door lock (bank wall) side. In addition, it is intended to provide a watertight structure of a surface intake gate of a double intake facility in which a metal member for relaxing frictional resistance is attached to a tip end portion of the eaves body on the door stop side, if necessary.

[0006]

Next, the operation of the present invention will be described. Since a flat water-tight rubber material covering the entire surface is attached to the downstream surface of the skin plate of the surface water intake gate door of the double intake facility, this water-tight rubber material and the upper and lower sides of the door box (bank body) side that it contacts Fully reliable watertight action is achieved with the tip of the eaves stretched in the upstream direction at regular intervals.

When a metal object for reducing frictional resistance is attached to the tip of the eaves body on the door support side, frictional resistance between the watertight rubber material and the tip of the eaves body is reduced. Get smaller.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The skin plate 3 of the gate door body 2 in the surface water intake gate 1 of the multiple water intake facility
A flat watertight rubber material 4 is attached to the downstream side surface of the. The mounting structure is the surface of the door body 2, that is,
A bolt 6 is tightened from the upstream side 5, and a boss or nut 7 for the bolt 6 is embedded and molded in a predetermined inside of the rubber material 4, and the bolt 6 and the boss or nut 7 are attached and detached.

The tip of the eaves body 9, which is stretched toward the upstream side 5 at equal intervals on the door gate (bank wall) 8 side, is in contact with the watertight rubber material 4 and the space between them. That reduces the frictional resistance of the metal object, for example, the metal object 1 whose front end side is formed into the curved surface 10
1 is attached, whereby the durability of the watertight rubber material 4 is secured. In the figure, 12 is a vertical intake channel,
Reference numeral 13 is a water intake hole, 14 is a water intake gate, 15 is a main roller, 16 is a screen, and 17 is a hoisting machine.

[0010]

As is apparent from the above description, according to the present invention, in the surface water intake gate of the double water intake equipment, a flat watertight rubber material is entirely covered on the downstream surface of the skin plate of the gate door body. The watertight rubber material and the tip of the eaves stretched in the upstream direction at equal intervals on the door lock (bank wall) side are configured to perform a completely reliable watertight action. Therefore, it is possible to perform work such as installation and maintenance inspection of the watertight structure of the surface intake gate without underwater work or lowering the water storage level, and it is possible to significantly shorten the construction period and reduce the construction cost.

[Brief description of drawings]

FIG. 1 is a schematic vertical sectional view showing the overall configuration of an embodiment of the present invention.

FIG. 2 is a schematic cross-sectional view showing a configuration of a side portion of an embodiment of the present invention.

FIG. 3 is a schematic vertical cross-sectional view showing the configuration of the bottom portion of the embodiment of the present invention.

FIG. 4 is a schematic cross-sectional view showing a configuration of a side portion of a conventional example.

FIG. 5 is a schematic cross-sectional view showing a configuration of a bottom portion of a conventional example.

[Explanation of symbols]

 1 Surface intake gate of double type intake facility 2 Gate door body 3 Skin plate 4 Watertight rubber material 5 Upstream side 6 Bolts 7 Boss or nut 8 Household (bank wall) 9 Eaves body 10 Curved surface 11 Hardware 12 Vertical water intake 13 Water intake hole 14 Intake gate 15 Main roller 16 Screen 17 Hoisting machine

Claims (2)

(57) [Scope of utility model registration request] 1. At a surface intake gate of a double intake facility,
A flat watertight rubber material that covers the entire surface is attached to the downstream surface of the skin plate of the gate door body, and the watertight rubber material and eaves stretched in the upstream direction at equal intervals vertically on the door gate (bank wall) side. A watertight structure of the surface intake gate of the double intake facility, which is characterized by performing a watertight action with the tip of the. 2. The watertight structure of a surface intake gate of a double intake system according to claim 1, wherein a metal member for relaxing frictional resistance is attached to a tip portion of the eaves body on the door support side.