JPH09137631A - Erection device of waterproof door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the constitution of a device installed at passage ways or entrances/exits of a building or an underground parking lot or the like and reduce the maintenance and management costs. SOLUTION: A recessed pit 2 is provided on a floor face 1 and a headrace 4 connected to the pit is opened at the inflow side of water and the pit is covered. A waterproof door 9 equipped with a float 13 having the dimensions contained in the pit, is rotatably fitted through a horizontal shaft 7 installed at the opening edge of the front side of the water inflow direction S in the pit 2. A rod 14 is provided to keep an erected condition so that the gravitational center G of the waterproof door 9 does not exceed the horizontal shaft 7. In this way, when overflow water on a road is about to enter into facilities because of heavy rain, the float 13 in the pit 2 floats with the inflow water and the waterproof door 9 is rotated around the horizontal shaft 7 and erected and when water flows out, the door falls at the position to restitute the passage way to the usual condition.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof door erection device which is installed in a passageway, an entrance, an entrance or the like of a building, an underground parking lot or the like to prevent water from being flooded in an emergency such as a heavy rain.

[0002]

2. Description of the Related Art Conventionally, waterproof doors installed in facilities such as buildings and underground parking lots are installed in a place where the frontage of a passage is narrow so that the waterproof doors can be opened in the left-right direction via a vertical axis on the side wall. Some have watertight rubber around them to prevent water leakage. Normally, this waterproof door is designed to be opened and closed by a staff member, but it was necessary to fully close the waterproof door even when the water level was small. Therefore, there is also a waterproof door that is usually kept on the floor. This waterproof door is installed so as to stand up from the floor by rotating it through a horizontal shaft arranged on the floor. As the upright means, there is one in which a waterproof door is fixed to a horizontal shaft that is rotationally driven, but there is one in which a recessed pit is provided in the lower portion of the floor surface and a hydraulic machine that is an upright device is provided. The horizontal shaft that allows the waterproof door to rotate is provided on the water entry side, and it is necessary to improve the watertightness so that the water does not enter the pit.

In addition, according to the proposal that the operation of the standing device is easy to operate and manage without using a member such as a steel machine, a folded balloon is arranged in the pit under the floor and the compressor is activated during use. There is a method in which a fluid is filled in a balloon to inflate the balloon and a waterproof door placed on the upper portion is rotated and erected.

[0004]

However, although the waterproof door by the above-mentioned balloon requires manual operation and a staff member is to be assigned, the personnel cost of the staff member is also increasing. Further, a compressor control device for filling the balloon with the fluid is also installed, and a valve is also provided in the conduit for discharging the fluid in the balloon, and the valve is also controlled, which results in high maintenance and management costs.

An object of the present invention is to provide a waterproof door erection device which automatically undulates and has a simple structure to reduce maintenance and management costs.

[0006]

In order to achieve the above-mentioned object, the present invention provides a concave pit on the floor surface and opens a water conduit communicating with the pit on the water entry side to cover the pit, Moreover, a waterproof door equipped with a float having a size that can be accommodated in the pit is rotatably attached through a horizontal shaft installed at an opening edge in the front of the pit in the water entry direction, and the center of gravity of the waterproof door is It is characterized in that a stopper is provided to regulate the standing state so as not to exceed the horizontal axis.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Rubber is attached to the vicinity of the horizontal axis of a waterproof door according to the present invention to make it watertight so that water leakage does not occur even if the waterproof door rotates. On the side of the waterproof door, a sliding contact plate is attached to the corresponding side wall, a rubber material is provided on the side edge of the waterproof door, and the contact surface of the rubber material with the sliding contact plate is large in the water flow direction to improve watertightness. To do. The float rises when water enters the pit, but the waterproof door suddenly rises when the headrace opening is almost level with the floor. For this reason,
It is advantageous when the static friction force is large. It is also possible to put water in the pit in advance so that the waterproof door is slightly raised (initial standing state). When the waterproof door stands up, it is possible to hit the protrusions (stoppers) provided on the side walls so that the center of gravity does not cross the horizontal axis and prevent further rotation, but the pit interior and the waterproof door are flexible. By connecting with a rod (stopper), it is not necessary to process the side wall, and the side wall is flat and does not obstruct passage.

[0008]

Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, a concave pit 2 made of concrete is provided on the floor surface 1 of the entrance / exit of the facility, and the floor surface outside the entrance / exit (in FIG. 1, it is an inclined surface, but may be a flat surface). A water outlet 3 is provided, and a water conduit 4 is provided between the water outlet 3 and the side wall of the pit. A filter 5 is attached to the water outlet 3 to prevent dust from flowing in.

A step 6 lower than the floor surface 1 is formed at an opening edge in front of the water intrusion direction s of the upper opening of the pit 2, and a horizontal shaft 7 is arranged on the step 6 and pivots on bearings 8 at both ends. It is supported freely. The base end portion of the waterproof door 9 is fixed to the horizontal shaft 7, and the front end portion of the waterproof door 9 is in contact with the facing pit opening edge 10. A cushion rubber 11 is attached to the rim 10 of the pit opening so as to reduce the impact applied to the tip of the waterproof door 9 by the load of a person or a vehicle passing on the floor. Further, a watertight rubber 12 is coated on the base end portion of the waterproof door 9,
The watertightness with the inside of the facility is maintained regardless of the rotation position of. A watertight rubber is attached to the side surface of the waterproof door 9 so as to be in close contact with the side wall of the passage.

A float 13 having a size that can be accommodated in the pit 2 is mounted on the pit side surface of the waterproof door 9, and a rod (stopper) 14 for connecting the bottom of the pit and the waterproof door 9 is provided.
Also, the central portion of the rod 14 is bent so that it can be accommodated in the pit 2. Further, the length of the rod 14 when extended is such that the center of gravity G of the waterproof door 9 does not exceed the horizontal axis 7 even if the waterproof door 9 stands up. The waterproof door 9 may be prevented from rotating by providing projections (stoppers) on both side walls of the waterproof door 9 in the upright position.

The erection device constructed as described above can be installed more easily than the conventional erection device, and since the operation by the staff is unnecessary, the personnel can be properly arranged in case of emergency. In fact, when the road overflows due to heavy rain or the like and the water level rises, the water enters the pit 2 and buoyancy is generated in the float 13. Further, when water is about to enter the facility, the float 13 floats up depending on the water level, and the waterproof door 9
Rotates around the horizontal axis 7 and rises above the floor surface 1, thus preventing water from entering. In addition to the weight (center of gravity G) of the waterproof door 9, buoyancy F and water pressure P are applied to the waterproof door 9. Further, when water enters the pit 2, the waterproof door 9 rises to the initial standing state a shown in FIG. Also, there is no danger of water intrusion, and if the water level drops, the float 13 will also drop and the waterproof door 9
However, if there is water in the pit 2, it falls to the initial standing state a. Therefore, by artificially discharging the water in the pit 2, the waterproof door 9 becomes flush with the floor.
Depending on the position of the water outlet 3 and the shape of the water conduit, the water in the pit 2 can be naturally discharged without the staff having to remove it.

[0012]

EFFECTS OF THE INVENTION Since the present invention is constructed as described above, the float in the pit floats up due to the invading water, and the waterproof door stands up by rotating around the horizontal axis. If the door is pulled, the waterproof door will collapse and the aisle will return to normal. Therefore, the operation of the staff is not necessary, the structure is simple and the construction cost is low by eliminating the driving device, and the maintenance is easy.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing an upright device for a waterproof door according to an embodiment of the present invention.

[Explanation of symbols]

 1 Floor 2 Pit 4 Waterway 6 Opening edge 7 Horizontal axis 9 Waterproof door 13 Float 14 Stopper G Center of gravity

Claims (1)

[Claims] 1. A concave pit is provided on a floor surface, and a water conduit communicating with the pit is opened on a water entry side to cover the pit and a float having a size that can be accommodated in the pit is attached. A waterproof door is rotatably attached via a horizontal shaft installed at an opening edge in front of the water intrusion direction of the pit, and a stopper is provided to regulate the standing position so that the center of gravity of the waterproof door does not exceed the horizontal axis. A stand up device for waterproof doors, which is characterized in that