JP2016097035A - Evacuation door device for prolapse to ground - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve smooth opening and closing actuation of a weight body 12 of an evacuation door 5, and a driving device 13 for opening and closing a ground outlet 4 of an evacuation passage 3 communicating a ground and an underground space such as an underground passage, and an arrangement space of the weight body 12 does not have to be provided on a side wall 3b of the evacuation passage 3.SOLUTION: A weight body 12 is disposed so as to be bilateral symmetry with respect to a center line L of an evacuation passage 3, and connection between a driving device 13 and a horizontal shaft 9 is disposed so as to be bilateral symmetry with respect to the center line L, for securing right and left balance of a rotation load of the horizontal shaft 9 for opening and closing an evacuation door 5.SELECTED DRAWING: Figure 3

Description

  The present invention relates to the technical field of escape door devices for escape from the ground to escape from underground spaces such as underground passages, subways, and underground shopping streets.

Generally, in this type of underground space, an evacuation passage is provided for emergency escape to the ground in the event of a fire or accident. If the ground exit from such an evacuation passage is, for example, a sidewalk beside a road, if the ground exit remains open, people may accidentally enter the underground space. It is required to close the exit so that it can be opened and closed with an evacuation door.
As such, the suspension base of the evacuation door is pivotally supported via a horizontal shaft, while a weight is provided on a connecting arm extending from the horizontal shaft to the suspension base. The evacuation door is maintained in a closed position by braking the brake device. If an abnormality such as a fire occurs in the underground space in such a state, the evacuees in the underground space will evacuate to the ground through the evacuation passage, but the refugees who have gone up this evacuation passage will be released By operating the operating tool, braking of the brake device is released, and when the weight is lowered by its own weight, the horizontal axis rotates and the evacuation door opens automatically, so that the refugee is on the ground. The thing which enabled evacuation is proposed (for example, refer patent document 1).

JP-A-7-155387

  However, the conventional device is arranged so that the weight body moves up and down along the left or right side wall of the evacuation passage, and the drive device for returning the evacuation door in the open posture to the closed posture. Also, the one side is interlocked with the horizontal axis. For this reason, both the load for opening the evacuation door received from the weight body and the load for closing the evacuation door received from the drive unit from one side with respect to the horizontal axis for swinging the evacuation door open and close As a result of working in a one-handed state, there is a risk that the opening operation of the evacuation door may be awkward, and the working space above and below the weight body must be secured on one side wall part of the evacuation passage Therefore, there is a problem that the evacuation passage becomes narrow accordingly, and here is a problem to be solved by the present invention.

The present invention was created with the object of solving these problems in view of the above circumstances, and the invention of claim 1 is provided at the ground exit of an evacuation passage for escape from underground space to the ground. A ground escape escape device provided to open and close the ground exit and escape from the ground exit to the ground, the escape door device is configured to open and close the ground exit long in the front-rear direction; and A horizontal axis is provided at the suspension base of the evacuation door, the axis is oriented in the left-right direction and rotated in the circumferential direction to open and close the evacuation door, and is provided integrally with the horizontal axis and closed. A weight provided on the suspending side from the horizontal axis to open the evacuation door, a brake device for braking the automatic opening of the evacuation door by the weight and maintaining the evacuation door in a closed posture, To release the brake device and open the evacuation door In constructing the open operation tool to be operated and the drive device linked to the horizontal axis to return the escape door in the open posture to the closed posture, the weight body is located at the ceiling portion of the escape passage, It moves up and down above the evacuation passage and is arranged symmetrically with respect to the center line in the front-rear direction, which is the center of the dimension between the left and right side walls of the evacuation passage. The evacuation door device for escaping from the ground is characterized in that the evacuation door device is connected to a horizontal axis at two locations symmetrical to the center line of the evacuation passage.
The invention according to claim 2 is that the weight body is divided into a pair of left and right, but is arranged with a gap left and right at a position separated from the center line of the escape passage to the left and right. The escape door device for escape from the ground according to claim 1, wherein the escape door device is disposed in a gap between the bodies and is interlocked and connected to a horizontal axis at a position left and right inside the divided weight body.
According to a third aspect of the present invention, the weight body is integrated at the central position in the left-right direction passing through the center line of the evacuation passage, and the drive device is disposed closer to the suspension side than the weight body. The evacuation door device for ground escape according to claim 1, wherein the evacuation door device is interlocked and connected to the horizontal shaft at the left and right outer positions.
The invention according to claim 4 is characterized in that the weight body is arranged so that the lower end edge is substantially the same height as the ground surface in a normal state when the escape door is closed. The escape door device for ground escape according to any one of the above.
5. The evacuation door according to any one of claims 1 to 4, wherein the evacuation door has an arc shape in a side view in which a suspension base end and a door end side end are low and a front and rear direction center is high. It is an escape door apparatus for ground escape of description.
The invention according to claim 6 is characterized in that side plates for closing the left and right side surfaces of the evacuation door in the closed posture are provided on the left and right side surfaces of the evacuation door. This is an evacuation door device for escape from the ground.
According to a seventh aspect of the present invention, at least one side plate is provided with a child door for entry from the ground, and a ladder is provided on a side wall of the evacuation passage for a person who has entered from the child door to descend to the floor of the evacuation passage. It is provided, The escape door apparatus for ground escape of Claim 6 characterized by the above-mentioned.
The invention according to claim 8 is characterized in that the drive device is covered with a cover that can be opened and closed from the ground, and is configured to be operated from the ground. The evacuation door device.
The invention according to claim 9 is characterized in that the escape passage is provided with a stopper that comes into contact with the escape door in the fully open position, according to any one of claims 1 to 8 It is a door device.

According to the first aspect of the present invention, the weight body is arranged on the ceiling portion, and the left and right width of the escape passage is not sacrificed, and the escape passage can be widened to the left and right. Moreover, the connection from the weight body and the drive unit to the horizontal axis is symmetrical with respect to the center line in the front-rear direction, which is the center of the dimension between the left and right side walls of the escape passage, so that it is performed from one side in the left-right direction Therefore, there is no fear that the opening / closing operation of the evacuation door becomes awkward, and a smooth opening / closing operation can be performed.
According to the second aspect of the present invention, the weight body is arranged in the state of being split left and right symmetrically on the ceiling portion of the evacuation passage, and the drive device is arranged between them. The weight of the evacuation door device can be shortened while the arrangement of the evacuation door is overlapped when viewed from the side to eliminate the awkwardness of the opening and closing operation of the evacuation door.
With the invention according to claim 3, the ceiling and the driving device are arranged in series in the ceiling portion of the evacuation passage so that the ceiling storage can be simplified and the evacuation passage cannot be widened. It is effective in the case.
By setting it as invention of Claim 4, the arrangement | positioning space of a weight body can be made into the ground, and the space of an escape passage can be enlarged.
According to the invention of claim 5, the evacuation door protrudes in an arc shape from the ground, and as a result, the person on the ground can be made aware of the existence of the evacuation door.
By setting it as invention of Claim 6, the side surface of the evacuation door which protruded in circular arc shape will be block | closed, and the person on the ground will not enter into an evacuation channel accidentally.
By making it the invention of claim 7, it is easy to enter the underground space through the evacuation passage from the child door of the emergency responder such as the fire brigade.
According to the eighth aspect of the invention, the ground can be operated on the driving device, and the operability is improved.
By setting it as invention of Claim 9, the escape door of a fully open attitude | position can be stabilized.

It is a schematic perspective view which shows the escape route from an underground passage to the ground. It is the whole evacuation door apparatus perspective view. It is a top view of the evacuation door apparatus of the state which abbreviate | omitted the evacuation door. It is a side view of the state seen from the left-right one side of the evacuation door apparatus. It is a side view of the state seen from the right and left other side of the evacuation door device. It is a longitudinal cross-sectional front view of the horizontal-axis site | part of an evacuation door apparatus. It is a side view which shows the state which opened the evacuation door. It is a top view of the evacuation door apparatus of the state which abbreviate | omitted the evacuation door of 2nd embodiment. It is a side view of the state seen from the left-right one side of the escape door apparatus of 2nd embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 denotes an underground passage, and an evacuation passage 3 leading from the underground passage 1 to a ground sidewalk 2 is formed, and an evacuation door 5 in which the present invention is implemented is provided at the ground outlet 4 of the evacuation passage 3. It can be opened and closed freely. Incidentally, in the present embodiment, the escape passage 3 is a straight staircase, and the landing 3a is provided in the middle, but it may be a zigzag staircase or a slope.

  The evacuation door 5 is formed of a plate-like body having a low arcuate side end and a door end side end and a high center in the front-rear direction when viewed from the side. Support frames 6, 7 that hang downward are provided on the lower surface of the part), and a horizontal frame 8 that is long in the front-rear direction is provided on the lower ends of the support frames 6, 7. At the end (hanging side end), the horizontal shaft 9 with the axial center facing in the left-right direction in a state of being substantially in the same position as the ground surface GL is attached to the left and right support brackets 10 provided on the left and right side walls 3b of the escape passage 3. The shaft is pivotally supported.

  A pair of left and right support arms 11 are provided at the left and right ends of the horizontal shaft 9 so as to be symmetrical with respect to the center line L in the front-rear direction, which is the center of the dimension between the left and right side walls 3 b of the escape passage 3. Furthermore, a weight body 12 that extends toward the suspending side (the side opposite to the evacuation door 5) and is divided into left and right is provided on the support arm 11, whereby the weight body 12 is The divided parts are provided symmetrically with respect to the center line L in a state where they are spaced apart from each other with a gap left and right. Further, the weight body 12 is provided on the ceiling portion above the escape passage 3 (this embodiment). Then, it is in the upper ceiling part of the landing 3a), and is normally arranged so that the lower end edge is positioned substantially on the ground surface GL.

On the other hand, the drive unit 13 is disposed on the ceiling portion of the escape passage 3 in a state of being arranged in the gap between the left and right weight bodies 12 (between the left and right support arms 11). The drive sprocket 13 a provided on the vehicle is linked to a driven sprocket 9 a provided on the horizontal shaft 9 via a chain 14. In the present embodiment, the drive sprocket 13a, the driven sprocket 9a, and the power transmission mechanism K by the chain 14 are arranged so as to be symmetrical with respect to the center line L at the left and right inner positions of the weight body 12. . In addition, the drive device 13 is internally provided with a brake device.
During normal times when the evacuation door 5 is closed, braking by the brake device works, whereby the driving device 13 is maintained in the braking state, the power transmission mechanism K does not operate, and the evacuation door 5 is closed. However, an abnormal situation such as the occurrence of a fire in the underground passage 1 has occurred, and an evacuee who has moved up the evacuation passage 3 from the underground passage 1 and has approached the ground exit 4 is in contact with the side wall 3b of the evacuation passage 3. When the brake is released by operating the release operation tool (brake release tool) 15 provided on the power transmission mechanism K, the power transmission mechanism K is allowed to operate freely, and the evacuation door 5 receives the weight body 12 being lowered by its own weight. The evacuee can escape from the ground exit 4 where the evacuation door 5 is opened to the sidewalk 2 on the ground by performing an upward opening operation.

  In order to return the evacuation door 5 opened in this way to the closed state again, the drive device 13 is used. In the present embodiment, the drive device 13 is a manual type that manually moves the handle. Of course, it may be electrically driven.

Incidentally, the following consideration is given to the escape door device of the present embodiment. First, in order to prevent intrusion of water such as rainwater, the evacuation door 5 is provided in a raised portion F raised with concrete or the like so as to be higher than the ground surface GL.
Further, as described above, since the escape door 5 has an arc shape, both the left and right side surfaces are opened, but the open portion is closed by the side plate 16. In this case, a child door 17 is provided on the side plate 16 on the side opposite to the road so as to be opened and closed. The child door 17 is used for a person such as a firefighter or a manager to enter the underground passage 1. In addition, a key hole 17a is provided so as to be locked and unlocked by a key possessed by these persons, and a hose hole 17b is provided so as to be unlocked by a water pressure ejected from a fire hose. And the child door 17 is provided in the site | part by which the raised part F was notched so that these people may enter easily.
Further, on the side wall 3b of the evacuation passage 3, a ladder 18 for a person entering from the opened child door 17 to descend to the floor of the evacuation passage 3, and the weight body 12 and / or support when the evacuation door 5 is fully opened. A stopper 19 is provided for abutting the arm 11 and restricting further opening operation, so that the evacuation door 5 can be stabilized when fully opened.
Reference numeral 20 denotes a cover for covering the weight body 12 and the driving device 13 so as to be freely opened and closed. By opening the cover 20, the manual closing operation can be performed together with maintenance of the driving device 13 and the like. Reference numeral 21 denotes a control panel for operating an alarm lamp 24, an alarm buzzer (not shown) or the like. Further, 22 is a protective net that is deployed in a gap between the side plate 16 and the left and right side edges of the evacuation door 5 when the evacuation door 5 is opened, and 23 is a handrail. is there. The warning light 24 is lit while the open / close door 5 is open. Further, a rubber material 25 is provided at the door end side end of the evacuation door 5, a sponge material 26 is provided at the door bottom side end, and a sponge material 27 is also provided on the upper surface of the side plate 16, so that the door is closed. The sealing property is maintained.

  In the present embodiment configured as described, an abnormality such as a fire occurs in the underground space, and a person in the underground space becomes an evacuee and goes up the underground passage 3 to reach the vicinity of the ground exit 4. However, when the reached evacuee operates the opening operation tool 15 provided on the escape passage side wall 3b to release the braking of the brake device, the power transmission mechanism K is allowed to operate freely, thereby evacuating. The door 5 is opened by the downward movement due to the weight of the weight body 12 and can escape from the ground exit 4 to the sidewalk 2.

In this way, the evacuees who are in the underground space can escape to the ground by automatically opening the evacuation door 5 under the weight of the weight body 12 when an abnormality occurs. However, since the weight 12 moves up and down in the ceiling portion above the evacuation passage 3, the left and right width of the evacuation passage 3 is narrowed, and a space for moving the weight 12 up and down is used as a side wall of the evacuation passage 3. There is no need to secure 3b.
In addition, in this case, the weight body 12 is arranged in a space above the ground surface GL in a normal state, so that the space of the escape passage can be widened.

  Moreover, since the weight body 12 is divided into left and right parts and is symmetrically arranged with respect to the center line L of the evacuation passage 3, the weight of the weight body 12 is evenly distributed with respect to the horizontal axis 9. As a result, the evacuation door 5 can be smoothly opened without fear of being awkward as in the case of a unilateral operation.

  In addition, when the opened evacuation door 5 is closed, the drive device 13 can be driven from the ground by opening the cover 20, but the connection between the drive device 13 and the horizontal shaft 9 is the center of the evacuation passage 5. Since the line L is symmetric with respect to the line L, the smooth closing operation can be performed as compared with the one operating in a one-handed state.

  Further, in the present embodiment, the weight body 12 is divided into left and right, and the drive device 13 is disposed therebetween, so that when viewed from the side, the weight body 12 and the drive device 13 are overlapped. There exists an advantage that the front-back length of an escape door apparatus can be shortened with respect to what has arrange | positioned the drive device 13 further to the suspension base side with respect to the weight body 12 like embodiment.

Furthermore, the evacuation door 5 has an arcuate shape in a side view with a low suspension base end and a door end side end and a high center in the front-rear direction, so that its presence can be recognized as a small mountain on the ground. As a result, it is possible to avoid a person on the ground from accidentally getting on the escape door in the closed position.
In this case, the left and right side surfaces of the evacuation door 5 are provided with side plates 16 for closing both the left and right side surfaces of the evacuation door 5 in the closed posture, so that the evacuation door has an arc shape that is easily recognized on the ground. However, it is possible to avoid entering the evacuation passage 5 from the side surface of the evacuation door 5.

  One side plate 3b of the evacuation passage 3 is provided with a child door 17 for entering from the ground, and a ladder 18 is provided on the evacuation passage side wall 3b for a person who has entered from the child door 17 to descend to the floor surface of the evacuation passage. Therefore, in order to extinguish the fire, a fireman can enter quickly without having to wait for the evacuation door 5 to be opened by an operation from the evacuation passage 3 side.

  Of course, the present invention is not limited to the above-described embodiment. For example, a second embodiment shown in FIGS. 8 and 9 described below may be used. In this configuration, the same reference numerals are used for the same components as those in the first embodiment, and details thereof are omitted.

The second embodiment is different from the first embodiment in that the weight body 12 is not divided, the arrangement of the weight body 12 and the drive device 13 is different, and the drive device 13 and the horizontal shaft 9 are different. The difference in the connection structure is different, and this difference will be described below.
First, regarding the weight body 12, the weight body 12 according to the second embodiment is integrated, and is symmetrical in the left-right direction center position passing through the center line L of the escape passage 3. It is arranged. On the other hand, the drive device 13 is disposed further on the suspending side than the weight body 12, so that the drive device 13 and the weight body 12 are disposed in a state of being displaced in the front-rear direction. The drive sprocket 13a provided in the drive device 13 is arranged on the left and right outer sides from the left and right end edges of the weight body 12 so as to avoid the weight body 12, and the driven sprocket 9a provided on the horizontal shaft 9 also corresponds to this. Accordingly, the power transmission mechanism K constituted by the drive sprocket 13a, the driven sprocket 9a, and the chain 14 suspended on these sprockets is located at the center line L of the evacuation door 5 at the left and right outer positions than the weight body 12. Are arranged symmetrically with respect to the reference, and the present invention can be implemented even in this way.

  INDUSTRIAL APPLICABILITY The present invention can be used for an escape door for escape from the ground to escape from underground spaces such as underground passages, subways, and underground shopping streets.

DESCRIPTION OF SYMBOLS 1 Underground passage 2 Sidewalk 3 Evacuation passage 4 Ground exit 5 Escape door 9 Horizontal shaft 9a Driven sprocket 12 Weight body 13 Drive device 13a Drive sprocket 14 Chain 15 Opening operation tool 16 Side plate 17 Child door 18 Ladder F Raising part GL Ground surface L Center line

Claims (9)

In the escape door device for ground escape provided to open and close the ground exit to escape from the ground exit to the ground exit of the escape passage for escape from the underground space to the ground, the escape door device is The evacuation door for opening and closing the ground exit for a long time, and the horizontal for opening and closing the evacuation door by rotating in the circumferential direction, with the axis centered in the left-right direction, provided at the suspension base of the evacuation door A shaft, a weight provided integrally with the horizontal shaft, and a weight body provided closer to the suspension side than the horizontal shaft to open the closed evacuation door, and braking the automatic opening of the evacuation door by the weight body A brake device for maintaining the evacuation door in a closed posture, an opening operation tool operated to release the brake device by releasing the brake and opening the evacuation door in the closed posture, And a drive unit linked to the shaft. In doing so, the weight body is located on the ceiling of the escape passage and moves up and down above the escape passage, and is located on the left and right with respect to the center line in the front-rear direction that is the center of the dimension between the left and right side walls of the escape passage. On the other hand, the drive device is arranged on the ceiling of the evacuation passage and is interlocked and connected to the horizontal axis at two places symmetrical to the center line of the evacuation passage. Escape door device for escape from the ground. The weights divided into a pair of left and right are arranged with a gap on the left and right at a position separated from the center line of the evacuation passage with left and right, and the driving device is arranged in the gap between the left and right divided weights. The escape door device for ground escape according to claim 1, wherein the escape door device is interlocked and connected to a horizontal axis at a position on the inner side of the left and right sides of the divided weight body. The integrated body is arranged at the central position in the left-right direction passing through the center line of the escape passage, and the drive device is arranged on the suspension side from the weight body, and the horizontal axis at the left and right outside position from the weight body. The escape door device for ground escape according to claim 1, wherein the escape door device is interlocked to the ground. 4. The ground escape according to any one of claims 1 to 3, wherein the weight body is disposed so that a lower end edge thereof is substantially the same height as the ground surface in a normal time when the escape door is closed. Evacuation door device. The escape door according to any one of claims 1 to 4, wherein the evacuation door has an arc shape in a side view in which a suspension side end and a door end side end are low and a center portion in the front-rear direction is high. Evacuation door device. The escape door for ground escape according to any one of claims 1 to 5, wherein side plates for closing the left and right side surfaces of the escape door in a closed posture are provided on the left and right side surfaces of the escape door. apparatus. At least one of the side plates is provided with a child door for entry from the ground, and a side wall of the escape passage is provided with a ladder for a person who has entered from the child door to descend to the floor of the escape passage. The escape door device for ground escape according to claim 6. The escape door device for escape from the ground according to any one of claims 1 to 7, wherein the drive device is covered with a cover that can be opened and closed from the ground and can be operated from the ground. The escape door device for ground escape according to any one of claims 1 to 8, wherein the escape passage is provided with a stopper that contacts the escape door in the fully open posture.

Images