JP2014199145A - Pipe conduit cutoff device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To block an air conditioning duct powerlessly and without an artificial operation at the invasion of Tsunami.SOLUTION: A pipe conduit cutoff device 1 is arranged at, for example, a horizontal part of an introduction duct 2 arranged in a building, and blocks the introduction duct 2 at the invasion of Tsunami. A door stop 5 having a ventilation opening 5a at the center is arranged in a pipe conduit. A water block plate 6 which is lodged to a floor side in the pipe conduit at a normal time, and blocks the opening 5a of the door stop 5 by being erected with an end of a downstream side in the lodged state at a normal time as a pivot by buoyancy generated by sea water which intrudes into the pipe conduit, and dammed up at an external peripheral part of the door stop 5 at emergency is arranged in the vicinity of a face of an upstream side of the door stop 5. Weights 7 which are inverted to the erecting swiveling direction of the water block plate 6 at a start of the erection of the water block plate 6, and imparts moment in the erecting direction to the water block plate 6 are arranged at both ends of the downstream side being an erecting pivot of the water block plate 6. By this constitution, an air conditioning duct can be surely blocked and the intrusion of sea water into a room can be prevented powerlessly and without an artificial operation.

Description

  The present invention, for example, is a pipe stop water that prevents an intrusion of a tsunami into a room by closing an air-conditioning duct provided in a fixed structure without power and without manual operation when a tsunami strikes. It relates to the device.

  In order to air-condition each room in a fixed structure (hereinafter referred to as a building), outside air taken in from the outside air inlet is supplied to each room via the introduction duct, while indoor exhaust is supplied via the exhaust duct. An air conditioner that discharges from an exhaust port is disclosed (for example, see Patent Document 1).

  When the building equipped with the air conditioner is a sturdy building such as a reinforced concrete structure, even if the building is not swept away by the tsunami when the tsunami hits it, it can be introduced from the outside air inlet and exhaust port provided in the building. Seawater intrudes into each room through the duct, increasing the damage.

JP 2004-19966 A

  The problem to be solved by the present invention is that, when a tsunami strikes, even if the building is sturdy and not swept away by the tsunami, seawater enters the room through the introduction duct and the exhaust duct and the damage increases. Is a point.

  In order to solve the above problem, the present invention, when a tsunami strikes, air-conditioning ducts such as introduction ducts and exhaust ducts are closed without power and without manual operation, so that seawater does not enter the room. It was made for the purpose of doing so.

The present invention
It is installed in a horizontal part or an inclined part of an air conditioning duct provided in a building, and is a pipe water stop device that closes the air conditioning duct when a tsunami strikes,
A door stop installed in the pipeline and having an opening for ventilation in the center,
It is placed close to the upstream surface of the door stop, and in a normal state, it is in a state of falling on the floor side in the pipeline, and in an emergency, it enters the pipeline and is dammed to the outer periphery of the door stop. A water-impervious plate that closes the door-to-door opening by standing up with the downstream end in a normal lying state as a fulcrum, due to the buoyancy generated by the seawater,
Weights provided at both ends of the downstream side that serve as standing fulcrums of the water shielding plate, and at the start of standing of the water shielding plate, fall down in the direction of the water shielding plate to turn up and apply a moment in the standing direction to the water shielding plate; ,
The main feature is that it has

  In the present invention having the above-described configuration, seawater that has entered the air-conditioning duct when the tsunami hits is blocked by the outer periphery of the door, and the water shielding plate that has fallen on the floor side in the pipeline is submerged. The water shielding plate stands up due to buoyancy and closes the door opening, preventing the intrusion of seawater into the building.

  In the present invention, when the water shielding plate stands up, with the start of standing of the water shielding plate, a weight positioned immediately above the standing fulcrum of the water shielding plate, for example, falls ahead in the standing turn direction of the water shielding plate. Then, a moment in the standing direction is applied to the water shielding plate.

  In the present invention, in the case where counterweights capable of offsetting the weight of the water shielding plate are provided at both ends on the downstream side in the normal time, which is the standing fulcrum of the water shielding plate, it is necessary for starting the standing of the water shielding plate. The inundation depth can be reduced. That is, even when the specific gravity of the water shielding plate is larger than the specific gravity of seawater, the specific weight difference is offset by the counterweight, and the timing at which the water shielding plate starts to stand up can be advanced. Once the water shielding plate starts to stand up, the weight falls down in the standing turn direction of the water shielding plate, a moment in the standing direction is added to the water shielding plate, and the water shielding plate is raised at a stretch until it comes into contact with the door stop.

  Further, in the present invention, when the weight is kept in the normal state by the holding member, for example, when the building vibrates due to an earthquake, it is possible to prevent the weight from falling in the upright turning direction of the water shielding plate. . That is, when the buoyancy acting on the water shielding plate exceeds the weight holding force by the holding member, the holding by the holding member is released, and the weight falls in the upright turning direction of the water shielding plate.

  Further, in the present invention, for example, when a damper is provided in the counterweight, the instantaneous standing of the water shielding plate can be suppressed, and the impact force when the water shielding plate collides with the door stop can be reduced.

  In the present invention, seawater that has entered the air-conditioning duct at the time of the tsunami is dammed to the outer peripheries of the doors installed in the piping, so that the water shielding board is submerged. Stand up to prevent intrusion of seawater into the building room. That is, according to the present invention, the air-conditioning duct can be reliably closed without power and without manual operation.

(A) (b) is a figure explaining the installation aspect of the pipe line water stop apparatus of this invention. It is the figure which showed the example of the pipe water stop apparatus of this invention in normal time, (a) is a center longitudinal cross-sectional view, (b) is an external view. It is the figure which showed the example of the pipe water stop apparatus of this invention at the time of flooding, (a) is a center longitudinal cross-sectional view, (b) is an external view. It is the figure which showed the other example of the pipe water stop apparatus of this invention in normal time, (a) is a center longitudinal cross-sectional view, (b) is AA sectional drawing of (a) figure, (c) is ( a) BB sectional drawing of a figure, (d) is an external view. It is the figure which showed the other example of the pipe water stop apparatus of this invention at the time of flooding, (a) is a center longitudinal cross-sectional view, (b) is an external view.

  The purpose of the present invention is to prevent the intrusion of seawater into the room on the floor side of the pipe line during normal times by closing the air conditioning duct without power and man-made operation when a tsunami strikes. It was realized by the water shield in the fallen state standing up instantly due to the buoyancy and the fall of the weight and closing the door opening.

Hereinafter, the form for implementing this invention is demonstrated in detail using FIGS. 1-3.
1-3 is a figure explaining the example of the pipe water stop apparatus of this invention, FIG. 1 shows an installation aspect, FIG. 2 shows normal time, FIG. 3 shows the time of flooding.

  In the pipe water stop device 1 of the present invention, when a tsunami strikes, even if the building is not washed away by the tsunami, seawater enters the room 3 from the outside air inlet, for example, installed in the building through the introduction duct 2. In order to prevent this, it is attached to, for example, a horizontal portion of the introduction duct 2 (see FIG. 1). In addition, although FIG. 1 has shown the example which provided the pipe line water stop apparatus 1 in the room | chamber interior 3, you may provide it outdoors.

  Reference numeral 4 denotes a cylinder having connecting flanges 4a attached to both ends, which are attached to the horizontal portion of the introduction duct 2 using the flanges 4a at both ends. And the door stop 5 which has the opening 5a for ventilation | gas_flowing in the center part is installed in the inside of this cylinder 4. FIG.

  Reference numeral 6 denotes a water shielding plate disposed close to the upstream surface of the door stop 5. As shown in FIG. 2, the water shielding plate 6 is normally in a state of being laid down on the floor 4 b side of the cylindrical body 4. In an emergency, seawater that has entered the inside of the cylindrical body 4 is dammed to the outer periphery of the door stop 5 and accumulates on the floor 4b of the cylindrical body 4 so that the water shielding plate 6 is submerged. The buoyancy is generated in the sway and the standing is started with the downstream end as a fulcrum.

  With the start of standing of the water shielding plate 6, the weight 7 falls to the movable limit in the standing turn direction of the water shielding plate 6, and gives the moment in the standing direction to the water shielding plate 6 to instantly raise the water shielding plate 6, As shown in FIG. 3, the intrusion into the room 3 of the seawater that has entered by closing the opening 5a of the door stop 5 is prevented. In addition, 8 shows the watertight rubber | gum attached to the surface which contact | abuts the water shielding board 6 of the said standing state 5 of the said door stop.

  The weight 7 imparts a moment in the standing direction to the water shielding plate 6 at normal times at both ends of the rotating shaft 9 that is a pivotal support point of the water shielding plate 6 extending to the outside of the cylindrical body 4. It is installed integrally with the rotary shaft 9 at a position not vertically above, and can rotate by a predetermined movable range with respect to the rotary shaft 9. The movable range of the weight 7 is set in a range of 90 ° or less from the vertically upward direction in the state where the water shielding plate 6 is lying down toward the downstream direction of the cylindrical body 4.

  Reference numeral 10 denotes a holding member, for example, a magnet catch, provided at a position in contact with the weight 9 at the above position in order to hold the weight 7 at the vertically upper position of both end portions of the rotating shaft 9 at normal times. If this magnet catch 10 is installed, for example, when a building is vibrated due to an earthquake or in the vicinity of a building and the building vibrates, the weight 7 falls and the water shielding plate 6 rises to open the door 5 5a is not blocked. The holding force of the magnet catch 10 is set so that the holding is not released by the vibration but is released by the buoyancy generated in the water shielding plate 6.

  Reference numeral 11 denotes a counterweight integrally installed with the rotary shaft 9 on both sides of the rotary shaft 9 on the side in the rotational direction in a normal state where the water shield plate 6 is in a lying state. Is offset. By installing the counterweight 11, even if the specific gravity of the water shielding plate 6 itself is larger than the specific gravity of seawater, the weight is offset by the counterweight 11, so that the inundation on the upstream side of the door stop 5 is performed. Even when the depth is shallow, the water shielding plate 6 can be levitated.

  Reference numeral 12 denotes a damper installed on the counterweight 11 to relieve an impact when the water shielding plate 6 stands up and collides with the door stop 5 at the time of flooding. When the damper 12 is installed on the counterweight 11, the number of parts is reduced. However, if there are restrictions on the arrangement, a lever that is coaxial with the rotating shaft 9 of the water shielding plate 6 is separately installed outside the cylinder 4. You may install in the end.

  The pipe water stop device 1 according to the present invention has the above-described configuration. During normal operation, as shown in FIG. 2, fresh air flowing through the introduction duct 2 is introduced into the room 3 through the cylindrical body 4. In the case of the above configuration, even when the building vibrates, the water shielding plate 6 does not stand up due to the action of the magnet catch 10 to close the opening 5a of the door stop 5.

  On the other hand, when seawater enters the cylinder 4 through the introduction duct 2 in an emergency, the seawater is once blocked by the outer periphery of the door 5 as shown in FIG. Due to the buoyancy generated on the plate 6, the holding force of the magnet catch 10 is released, the water shielding plate 6 is raised against the damper 12, and the opening 5 a of the door stop 5 is closed.

Next, another example of the pipe water stop device 1 of the present invention will be described with reference to FIGS. 4 and 5.
FIG. 4 is a view showing normal time, and FIG. 5 is a view showing when the water is flooded, and shows an example in which two cylindrical bodies 4 are attached in series to the horizontal portion of the introduction duct 2.

  Reference numeral 13 denotes a rectifying cylinder installed inside the cylindrical body 4, for example, coaxially with the cylindrical body 4. The fluid that has passed through the introduction duct 2 passes through an opening 4aa provided in the flange 4a of the cylindrical body 4, and the rectifying cylinder. 13 is led. Accordingly, it is desirable that the opening 4aa provided in the flange 4a of the cylindrical body 4 and the inner peripheral surface of the rectifying cylinder 13 have a cross-sectional shape or size so that the pressure loss of the introduction duct 2 does not increase.

  14 is provided on the floor portion 13a on the upstream side of the rectifying cylinder 13, and in the embodiment shown in FIGS. 4 and 5, it is provided on the floor portion 13a on the upstream side portion of the rectifying cylinder 13 installed inside the cylinder 4 arranged on the downstream side. When the seawater intrudes into the introduction duct 2 when a tsunami strikes, the seawater once flows down under the floor of the rectifying cylinder 13. Therefore, the size of the water guide plate 14 and the shape, size, and number of the water guide portions provided on the water guide plate 14 are not particularly limited as long as seawater can flow down under the floor of the rectifying cylinder 13.

  In the embodiment shown in FIGS. 4 and 5, the water shielding plate 6 is provided on the floor portion 13a on the downstream side of the water guide plate 14, and normally forms the floor surface of the rectifying cylinder 13 together with the floor portion 13a. Are arranged to be. Then, when seawater has entered the introduction duct 2 due to the tsunami, the seawater rises once through the water guide plate 14 and under the floor of the rectifying cylinder 13 and rises with the downstream end as a fulcrum. By doing so, the flow straightening cylinder 13 is closed and the intrusion of the seawater that has entered into the room 3 is prevented.

  In the embodiment of FIGS. 4 and 5, the opening 4aa provided on the flange 4a located on the downstream side of the water shielding plate 6 is blocked by the standing of the water shielding plate 6. FIG. Therefore, the water-tight rubber 8 is attached to the surface of the flange 4a located on the downstream side of the water shielding plate 6 that comes into contact with the standing water shielding plate 6.

  In the case of the pipe water stop device 1 of the present invention shown in FIGS. 4 and 5, normally, as shown in FIG. 4, fresh air flowing through the introduction duct 2 is introduced into the room 3 through the rectifying cylinder 13. . In the case of the above configuration, even if the building vibrates, the water shielding plate 6 does not stand up due to the action of the damper 12 to close the rectifying cylinder 13.

  On the other hand, when seawater enters the rectifying cylinder 13 through the introduction duct 2 in an emergency, the seawater once flows down from the water guide plate 14 to the floor of the rectifying cylinder 13 as shown in FIG. The water shielding plate 6 is raised against the damper 12 to close the opening 4aa of the flange 4a.

  The present invention is not limited to the above examples, and it goes without saying that the embodiments may be changed as appropriate within the scope of the technical idea described in each claim.

  For example, in the embodiment of FIGS. 1 to 5, the pipe water stop device 1 of the present invention is attached to the horizontal portion of the introduction duct 2, but it may be attached to the inclined portion of the introduction duct 2.

  Moreover, the pipe water stop apparatus 1 of this invention does not need to be installed in all the introduction ducts 2 taken in into the room | chamber 3 (refer Fig.1 (a)). For example, as shown in FIG. 1 (b), if the pipe water stop device 1 of the present invention is attached to an indoor part of an important room where important equipment is installed, a general room in the same building will be submerged. Thus, even if the introduction duct 2 is broken, the important room can be protected from flooding.

  1 to 5, the pipe water stop device 1 of the present invention is attached to the introduction duct 2, but it may be attached to the exhaust duct.

  Moreover, in the Example of FIG.4 and FIG.5, although the two cylinders 4 are connected in series and the water guide plate 14 and the water impervious board 6 are installed in the rectification | straightening cylinder 13 provided in the cylinder 4 of the downstream side. The upstream cylinder 4 is not necessary if the infiltrated seawater is allowed to flow down and the water shielding plate 6 can be erected by rising the surface of the seawater that has flowed down. In addition, the damper 12 may be separately installed on the end of the cylindrical body 4 with a lever coaxial with the rotating shaft 9 of the water shielding plate 6.

  In addition, the target to enter the duct in the event of an emergency is not limited to seawater, and any buoyancy that allows the water shielding plate 6 to rise so that the water shielding plate 6 can float and the pipe can be fully closed can be used. Such a liquid may be used.

DESCRIPTION OF SYMBOLS 1 Pipe line water stop apparatus 2 Introductory duct 4 Cylinder body 5 Per door 5a Opening 6 Water shielding board 7 Weight 10 Magnet catch 11 Counterweight 12 Damper 13 Rectification cylinder

Claims (6)

It is installed in a horizontal part or an inclined part of an air conditioning duct provided in a fixed structure, and is a pipe water stop device that closes the air conditioning duct when a tsunami strikes,
A door stop installed in the pipeline and having an opening for ventilation in the center,
It is placed close to the upstream surface of the door stop, and in a normal state, it is in a state of falling on the floor side in the pipeline, and in an emergency, it enters the pipeline and is dammed to the outer periphery of the door stop. A water-impervious plate that closes the door-to-door opening by standing up with the downstream end in a normal lying state as a fulcrum, due to the buoyancy generated by the seawater,
Weights provided at both ends of the downstream side that serve as standing fulcrums of the water shielding plate, and at the start of standing of the water shielding plate, fall down in the direction of the water shielding plate to turn up and apply a moment in the standing direction to the water shielding plate; ,
A pipe water stop device characterized by comprising:   The holding force that is not released by the vibration but released by the buoyancy generated in the water shielding plate so that the weight does not fall and give a moment in the standing direction to the water shielding plate when the fixed structure vibrates. The pipe water stop device according to claim 1, wherein the weight is held in a normal state by a holding member.   The pipe water stop device according to claim 1 or 2, further comprising a counterweight capable of offsetting the weight of the water shielding plate at both ends on the downstream side serving as the standing fulcrum of the water shielding plate.   In order to mitigate the impact when the water shielding plate stands up and collides with the door stop during flooding, it is coaxial with the counterweight or the downstream end at the normal time which becomes the standing fulcrum of the water shielding plate The pipe water stop device according to any one of claims 1 to 3, wherein a damper is provided at an end of a lever attached to the pipe.   The rectifying cylinder is provided on the inner side of the pipeline so that the water shielding plate and the door stop do not become a resistance against a normal air flow. Pipe stop device.   The pipe water stop device according to any one of claims 1 to 5, wherein a movable rotation angle of the water shielding plate when standing is 90 ° or less.

Images