JPS604354B2 - Electric shutter water pressure release device in case of fire - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a metal door (also referred to as an armor door) that is attached to an entrance or window of a building for security purposes.

) relates to an emergency water pressure release device in the event of a fire outbreak. Conventionally, when a fire breaks out in a building, there has been a major problem in that the entrances and exits are blocked off by firewalls, making it impossible to extinguish the fire and increasing the damage caused by the fire.

You can raise and lower the lock by hand, and if you have a type that simply locks the lock, you can break the lock by prying up the lock with a pearl, etc., and it is balanced with a spring to reduce the weight. Therefore, it can be opened easily.

However, for shirts of the type that are mainly opened and closed by moving outside the motor, all the weight of the shirt is applied to the motor, so it is impossible to lift and lower the shirt by hand. Because the brakes are designed to hold the brakes, they also pose a significant obstacle when released in the event of a fire. Because the shirt jacket cannot be opened in this way, in the event of a fire, it takes several minutes or more to burn off part of the shirt jacket using an oxygen cutter.

Naturally, the fire will spread during this time and cause more damage. SUMMARY OF THE INVENTION An object of the present invention is to provide an apparatus for releasing water pressure in the event of a fire, which eliminates the above-mentioned problems with water pressure.

Next, a first embodiment of the means embodying the present invention is shown in FIG.
To explain b, in the drawing, 1 is a shirt sleeve, 2 is its winding shaft, and 3 is a brake motor, the output shaft 4 of which is connected to the winding shaft 2.

The motor 3 includes a motor portion and a reduction gear mechanism portion, and the rotation of the motor shaft 3a is decelerated and transmitted from the output shaft 4 to the winding shaft 2. A brake release lever 5 is attached to the motor 3, and when pushed up when the motor 3 is stopped, releases the brake and allows the motor 3 to freely rotate.

Reference numeral 6 designates the entire water turbine serving as a shutter release means provided at the tip of the motor shaft 3a, and a casing 6b is formed to surround an inflator 6a fixed to the tip of the motor shaft 3a. An inlet 6c is provided in a part of the pipe 6b, a guide plate 6e is provided around the inflator 6a to guide water to the invera 6a, and a suction pipe 6d is attached to the center for drainage.

Reference numeral 7 denotes a pressurized water reception port installed near the jacket 1 at an appropriate height where firefighters can easily find it, and a packing 7a is provided on the inner periphery of the inlet to receive the pressure water from the nozzle N of the fire hose. It is designed to maintain watertightness when the tip is inserted.

A pipe 8 connects the inlet 7 and the inlet 6c of the casing 6b of the water turbine 6, and is provided with at least one bent portion 8a.

Reference numeral 9 denotes a branch pipe branched from the pipe 8, and a bellows 10 is provided at the tip of the branch pipe, and the bellows 10 is placed directly below the brake release lever 5.

Therefore, when water is supplied to this piping system and pressure is generated, the bellows 10 supports the extended brake release lever 5 and pushes it up, thereby releasing the brake.
Now, if a fire breaks out in a building equipped with this device, and the fire engine 1 is closed, the fire engine that arrives will immediately prepare to release water, insert the water nozzle N into the intake port 7, and spray water. When this starts, the water passes through the pipe 8 and reaches the water wheel 6, and also increases the pressure in the branch pipe, so the bellows 10 expands and pushes up the brake release lever 5, and the brake of the motor 3 is released.

On the other hand, the water that has reached the water wheel 6 flows from the inlet 6c to the casing 6b.
The water enters the interior, rotates the inflator 6a, and drains water from the suction pipe 6d. In this way, the brake of the brake motor 3 is released and the impeller 6a is rotated, so the output shaft 4 is rotated from the motor core 3a via the motor section and the reduction gear mechanism section, and the pick shaft 2 is further rotated. As a result, the first shirt will be rolled up. In this way, the present invention provides a brake in the drive system of the motor that winds up and unwinds the shirt sleeve, and also provides a brake release mechanism for releasing the controlled state of the brake, and a fire extinguisher is provided near the hem position of the shirt sleeve. A pressure water brake release mechanism is provided for mechanically releasing the brake using pressurized water from the nozzle, and a shirt sleeve is inserted from the reception port to mechanically wind up the shirt sleeve and release it. Since we installed piping to lead pressure water to the release means and the brake release mechanism, it can only be opened when a fire engine comes, and if the fire engine comes again, the brake release means can be operated separately by simply inserting the nozzle into the receiving port. It is possible to easily open the shirt jacket without any trouble, and even during a power outage, the shirt jacket can be opened reliably, which in turn minimizes human and property damage caused by fire. Because it does not open, the damage caused can be greatly reduced. In particular, in this embodiment, a water wheel 6 is provided on the motor shaft 3a and is rotated by pressurized water to open the jacket 1, so no other power is required and the water wheel 6 can be opened even during a power outage.

Next, the second embodiment of the present invention will be explained with reference to FIGS. 2a and 2b, only with respect to the points different from the first embodiment. 1 is a bearing that supports the motor ball 3a, and 14 is a pulley attached to the motor shaft 3a. A container 16 folded slightly is suspended from the tip of a rope 15 wound around the pulley 14 in large numbers.

And these pulley 14, rope 15 and container 16
This forms a shirt opening means. In this embodiment, the tip of the pipe 8 is closed downward at the top of the container 16.

Further, the branch pipe 9 is provided with a cylinder 17 and a piston 18, and when pressure is applied to the branch pipe 9, the piston 18 moves upward, and its rod 18a moves the brake release lever 5 upward to brake the brake. It acts to release the .
Now, as in the first embodiment, when water is supplied from the inlet 7, pressure is applied to the piston 18 in the cylinder 17 following the branch pipe 9, and the piston 18 is moved upward, so the rod 18a is also placed over the piston 18. The brake release lever 5 is rotated upward to release the brake of the motor 3.

Furthermore, the water discharged from the tip of the pipe 8 is stored in the container 16 and increases its weight, and eventually descends from the pulley 14 while unwinding the rope, rotates the pulley 14, and can wind up the shirt jacket 1.

Other functions and effects are the same as in the first embodiment.

Note that the present invention can be embodied in the following aspects. [A] The intake port 7 shall normally be configured with a lid.

{o} The water turbine 6 of the first embodiment is of an open type and has no discharge pipe.

1. The pipe 8 should be provided with at least one bent part so that it cannot be operated normally.

〇 A pressure regulating valve shall be installed in the pipes of all examples.

[Brief explanation of the drawing]

FIG. 1 shows a first embodiment of the present invention, FIG. 1a is a schematic front view, FIG. 1b is an enlarged sectional view of a water turbine, FIG. 2a is a schematic front view, and FIG. 2b is an enlarged side view showing the pulley and its rotation mechanism. Shirt cover 1, take-up shaft 2, brake motor 3, motor shaft 3a
, output shaft 4, brake release lever 5, intake port 7, pipe 8, branch pipe 9. Figure 1 Figure 1 Figure 2

Claims (1)

[Scope of Claims] 1. Separately from the motor that winds up and rewinds the shutter, a shutter release means for opening the shutter using pressure water is provided, and a brake is provided in the drive system of the motor, and the brake is configured to control the braking state. A brake release mechanism for releasing the brake is provided, a receiving port for a fire hose nozzle is provided near the installation position of the shutter, and a pressure water brake release mechanism is provided for mechanically releasing the brake release mechanism using pressurized water from the same nozzle. Also, an electric shutter water pressure release device in the event of a fire, which includes piping for guiding pressure water from the inlet to the shutter release means and the pressure water brake release mechanism in order to mechanically wind up and release the shutter. 2 The shutter release means normally winds up the shutter,
2. The water pressure release device for an electric shutter in the event of a fire as set forth in claim 1, which is a water turbine installed in a rewinding drive system and rotated by the pressure water. 3. The shutter release means normally winds up the shutter,
The electric shutter water pressure in the event of a fire according to claim 1, wherein the container is installed so as to be able to apply a rotational torque to a drive system for rewinding, and the pressure water is introduced into the container. Opening device.