KR20040094450A - A fire escape - Google Patents

Abstract

PURPOSE: An escape ladder is provided to protect human life by evacuating safely from an unexpected disaster such as a fire, etc. by installing to a wall connected to a balcony or a window. CONSTITUTION: The escape ladder(1) contains: a main frame(100) installed on both sides of an upper bar(130) of a vertical frame(110) provided with a slide space; a primary ladder composed of vertical bars(310) installed to slide vertically in the slide space of the main frame(100) and provided with a slide space of a secondary ladder vertical bar(310), and horizontal bars(230) supported to both vertical bars(210) and formed at regular intervals; a secondary ladder provided with vertical bars(310) installed to slide vertically in the slide space of both vertical bars(210) of the primary ladder, horizontal bars supported to both vertical bars(310) and formed at regular intervals, and a support bar formed horizontally on the upper part; and a control unit composed of a spool installed on the upper part of the main frame(100) to take up a wire connected to the support bar of the secondary ladder, and a link device controlling the wire to be unwound and rewound to unfold and fold the primary ladder and the secondary ladder, so that the primary ladder and the secondary ladder are unfolded in order from the main frame(100) by the control unit.

Description

Evacuation ladder {A FIRE ESCAPE}

The present invention relates to a ladder for emergency escape, the multiple ladders are automatically unfolded in a folded state by the simple operation of pressing the push button or touching the switch without occupying the indoor space, even up to the lowest floor. The emergency escape route to reach the ground safely spreads continuously, and it is possible to install all the weather anywhere in the wall as well as the balcony of the building, so that it can be safely evacuated in case of an emergency disaster such as a fire accident. It is about evacuation ladder to let you protect.

Typically, high-rise buildings such as buildings are equipped with emergency exits and emergency escape equipment, but in general houses or small buildings, the recognition of emergency escape equipment is neglected.

In addition, apartments, which are co-residential buildings, are large buildings and do not have a separate emergency escape means required by the fire law, so there are no escape routes in case of an emergency such as a fire. There was this.

On the other hand, even in the case of a large building equipped with an emergency exit and emergency escape equipment, there is a difficulty in seeing the damage due to the inability to move there even if the location of such emergency escape means is not known or known in case of emergency.

As an alternative to this problem, the present applicant has proposed several techniques for emergency ladders using balustrades of balconies, which will be described in Korean Utility Model No. 20-0265513, "Emergency ladders using balconies' balustrades".

The prior art registered by the present applicant is a perspective view in FIG. 14, a side height of the expanded state is shown in FIG. 15, the passage (3) and the passage (3) formed through which a person can pass through the balcony of the building Ladder (5) installed so as to rotate about the support side (4) in the center and the lock mechanism (6) locks on the railing in the folded state, the ladder (5) and the handrail (2) to achieve an integral state ).

The prior art of such a configuration locks the ladder to the balcony railings in a folded state so that the ladder can be functioned as a handrail, while in an emergency, the lock mechanism is released so that the ladder can be unfolded and connected to the lower floor. Has the advantage of being.

However, this prior art has raised some problems.

The prior art is formed by using a balcony, it is difficult to install in the case of a building without a balcony, there is a problem that the economic burden of having to re-run the railing because the existing railing can not be used as it is already installed balcony balustrade. .

The present invention has been made to solve the above problems,

An object of the present invention, by pressing a push button or touching a switch in emergency without occupying the interior space, multiple ladders are automatically unfolded in a folded state and continuously spread to the lowest floor to reach the ground safely. It is to provide an evacuation ladder that allows an emergency escape route to be constructed.

Another object of the present invention is to provide an evacuation ladder that can be installed in all weather, not only the balcony of the building but also the wall communicating with the window so that people can be evacuated safely during an emergency disaster such as a fire accident.

1A is a partial cutaway front view of an embodiment according to the present invention.

FIG. 1B is a partial cutaway side view of FIG. 1A

2 is a partial cross-sectional view taken along line A-A of FIG.

3A is a cross-sectional view taken along the line B-B in FIG. 1A

FIG. 3B is a partial detailed view of FIG. 3A

FIG. 3C is a perspective view of FIG. 3B

4A is a sectional view taken along the line D-D of FIG. 3B.

FIG. 4B is a released state diagram of FIG. 4A

5 is a configuration diagram of another embodiment corresponding to FIG. 4A

Figure 6a is a perspective view of the first link member of an embodiment according to the present invention

6B is a perspective view of a second link member of one embodiment according to the present invention;

FIG. 7 is a partial detailed view of FIG. 1B

8 is a configuration diagram of another embodiment corresponding to FIG. 3A

9 is a configuration diagram of another embodiment corresponding to FIG. 3A

10 is a perspective view of a transverse bar in one embodiment according to the present invention

Figure 11a is an expanded state of the guard according to the present invention

FIG. 11B is a top view of FIG. 11A

12A is a front configuration diagram of another embodiment according to the present invention.

FIG. 12B is a cross-sectional view taken along the line E-E in FIG. 12A

12C is a cross-sectional view taken along the line F-F in FIG. 12A.

13 is a configuration diagram provided with a fixing frame as an embodiment according to the present invention,

a is the front view, b is the side view

14 is a perspective view showing the configuration of the prior art

Figure 15 is a side view of the expanded state of the prior art

* Explanation of symbols for the main parts of the drawings

1: Evacuation ladder 100 of the present invention: mainframe

110: vertical frame 130: upper bar

140: reinforcement 200: first ladder

210: Longitudinal rod 230: Horizontal shelf

240: reinforcement 250: guard

300: second ladder 340: support rod

C: control unit 401: wire

410: wire splice 420: shaft

430: push shaft 431: push shaft knob

440: bracket 441: long hole

450: ratchet gear 460: brake plate

80: drive device 500: link device

510: first link member 520: push button

530: second link member 540: spring

600: alarm generating means 700: handle

800: fixing frame

Evacuation ladder according to the present invention for achieving the above object,

A main frame installed on both sides of an upper side of the vertical frame having a slide space therein;

A longitudinal rod installed to slide vertically in the slide spaces of both main frames and having a slide space of a second ladder longitudinal rod, which is described later, and a first ladder supported by both longitudinal rods and having horizontal bars formed at predetermined intervals;

A second ladder having longitudinal rods installed so as to slide vertically in both longitudinal rod slide spaces of the first ladder, and horizontal rods formed at predetermined intervals by being supported by both longitudinal rods;

A spool to be installed on the main frame and connected to the support rod of the second ladder, and a link for winding and folding the wire to adjust the unfolding and rewinding of the first and second ladders. A control unit including a device;

The first ladder and the second ladder are sequentially unfolded and connected from the main frame by the control unit.

Hereinafter, an embodiment of the evacuation ladder of the present invention will be described in more detail with reference to the accompanying drawings.

1A is a front view, FIG. 1B is a side view, FIG. 2 is a partial cross-sectional view taken along line AA of FIG. 1A, and FIG. 3A is a cross-sectional view taken along line BB of FIG. 1A, FIG. 3B. 3A is a detailed side view of FIG. 3A, and FIG. 3C is a partially omitted side view of FIG. 3B.

As shown in Figures 1 to 3, the evacuation ladder 1 of one embodiment according to the present invention is the main frame 100, the first ladder 200, the second ladder 300 and the control roll portion (C) It includes, and the first ladder 200, the second ladder 300 from the main frame 100 by the operation of the control unit (C) is configured to be spread out sequentially.

The main frame 100 is a basic structure of the ladder, the vertical frame 110 having a slide space 111 therein is installed on both sides of the upper bar 130 and the control unit in the upper bar 130 (C) is installed.

The first ladder 200 is installed so as to vertically slide in the slide space 111 of the main frame 100 on both sides and the longitudinal rod 210 is provided with a slide space 211 of the second ladder longitudinal rod 310 to be described later, The horizontal rods 230 are formed at predetermined intervals by being supported by the both side longitudinal rods 210.

The second ladder 300 is supported by the longitudinal rods 310 installed on both sides of the longitudinal rods 210 and the slide space 211 of the first ladder 200 and the longitudinal rods 310 and the horizontal rods at predetermined intervals. 330 is formed and the support bar 340 is rolled up using the bracket 341 at the top.

As such, the first ladder 200 slides vertically on the vertical frame 110 of the main frame 100 and the second ladder 300 slides vertically on the longitudinal rod 210 of the first ladder 200. The cross-sectional shape of the coupling part is that the vertical frame 110 has a large 'c' shape as shown in FIG. 2 and the longitudinal rods 210 of the first ladder are formed inside the large 'c' shape. A 'd' shape corresponding to the slide space 111 is formed, and the longitudinal rod 310 of the second ladder is preferably formed of a small 'c' shape inserted into one side space of the 'd' shape.

The first ladder 200 is located between the mainframe 100 and the second ladder 300, the mutual separation is prevented and the connection state is maintained when unfolded, the second ladder when folded in the unfolded state ( The engaging portions 102, 202, and 302 are formed on the slide portions so that the 300 pulls up the first ladder 200. Reference numerals 203 and 303 are buffer members.

The control unit (C) is installed on the main frame 100, the upper bar 130, the spool 410 for winding the wire 401 connected to the support rod 340 of the second ladder 300, and And a linkage device 500 for manipulating the unfolding and rewinding of the wire 401 to manipulate the unfolding and folding of the first and second ladders 200 and 300.

4 is a sectional view taken along the line DD of FIG. 3B showing the configuration of the link device 500. FIG. 4A is a locked state in which a ladder is folded, and FIG. 4B is an operation state diagram showing a state immediately after release. 6B is a perspective view of the second link member.

As shown in FIGS. 3 and 4, the control unit C includes a shaft bar 420 in which the wire spools 410 are integrally fixed to both sides, and a push for releasing the wire spools 410. The shaft 430 is installed,

The link device 500 is coupled to both ends of the wire bar 410, the shaft bar 420 so as to be rotatable separately from the shaft bar 420, one side is coupled to the pressing shaft 430, the second link member to be described later A first link member 510 provided with a protrusion 513 corresponding to a stop of the push button, and a push button 520 for operating the push shaft 430 to operate the first link member 510. And a concave inlet 532 for locking / releasing the support rod 340 interlocked by the first link member 510 and pin-pinned to the bracket 440 and provided on the second ladder 300. A second link member 530 having a stop 533 for fixing the first link member 510 and a spring 540 provided between the first link member 510 and the second link member 530. It is made, including

The link device 500 is supported, and comprises a bracket 440 is formed with a long hole 441 for the movement of the pressing shaft 430. Below the push button 520 is formed a push shaft coupling portion 521 for inserting the push shaft 430.

The shaft bar 420 is formed in a rectangular shape, such as a hexagonal bar for the integral rotation with the wiresplung 410, and the inside of the wirespool 410 coupled to it is also formed of a corresponding rectangular through hole, but the first link member The tip end of the shaft bar 420 in which 510 is inserted outwardly is formed as a circular bar.

In addition, the shaft bar 420 may be provided with a rewind handle (not shown) on one side for the manual rewind of the wire.

The push button 520 may be formed in a destructive type that is destroyed once used.

The operating state of the control unit C and the link device 500 having the above configuration will be described with reference to FIG. 3 with reference to FIG. 4.

When the push button 520 is pressed, the push shaft coupling part 521 formed below the push shaft 430 pushes the push shaft 430 downward, and thus the first link member 510 having one side coupled to the push shaft 530. Is rotated by a predetermined angle around the shaft 420.

The tension spring provided between the first link member 510 and the second link member 530 as the first link member 510 is rotated to exit from the stop 533 of the second link member 530. The second link member 530 is pulled to one side by the 540 so that the inlet of the recess 532 is downward so that the support rod 340 of the second ladder, which is locked by the recess 532, is laddered. At the same time, the ladder unfolds downwards due to its own weight.

In addition, in the case of folding the first and second ladders 200 and 300 which were unfolded on the contrary, the shaft bar 420 is automatically rotated by the manual or driving means 480 to reverse the wire splice 410. Rewind the wire 401. When the support rod 340 of the second ladder 300 enters the recess 532 of the second link member 530 and the wire 401 is continuously pulled up, the support rod 340 is connected to the second link. The second link member 530 is rotated about the pin 531 by pushing the upper portion of the recess 532 of the member 530 so that the stop jaw 533 is a protrusion 513 of the first link member 510. Locking is achieved by being combined with

At this time, the angle formed by the pressing shaft 430 and the shaft bar 420 of the wire spool is preferably formed to form a 15 °.

In addition, as shown in Figure 5, the end of the shaft rod 420 is preferably provided with a ratchet gear 450 that can be released rotation of the wire 401 when operating the push button 520.

The ratchet gear 450 allows the ratchet claw 451 to interlock with the push button 520 to allow the release of the shaft 4120 only when the push button is operated, and prevent the reverse rotation of the shaft 420 during the wire rewinding operation. This ensures that the rewind operation is safe.

The pressing shaft 430 installed across the link device 500 at both sides is installed in close contact with the outer edge 411 of the wire spool 410 for the guide of the wire 401, and the pressing shaft knob 431 is approximately at the center thereof. ) Is installed.

Such a configuration prevents the detachment of the wire 401 and facilitates an emergency operation since the push shaft knob 431 may be located at the center portion.

The control unit (C) is installed on the bracket 440 and is attached to the sensor 610 for generating an alarm signal and the second link member 530 is approaching the sensor 610 during the ladder unfolding operation. Preferably, the alarm generating means 600 made of a magnet 620 is provided.

Such a configuration enables the link device 500 to be driven at the same time through the push button 520 or the push shaft handle 431, and the alarm signal is generated to notify the neighbor of an accident.

A wire through hole 341 is formed through the support rod 340 of the second ladder, and the wire 401 penetrates through the support rod 340 of the second ladder 300 and is connected to both wires 410. do.

This configuration ensures that the left and right sides of the ladder are always horizontal.

One side of the wire spool 410 is preferably provided with a brake plate 460 for adjusting the degree of close contact with the wire spool to adjust the rotational speed of the wire 401 (see Fig. 3). Reference numeral 465 is a brake plate adjuster.

As shown in FIG. 7, the upper bar 130 of the main frame forms a penetrating portion 131 for inserting and supporting the lower end 301 of the second ladder, and the penetrating portion 131. The push button 520 is located in the upper floor when the ladder is installed is automatically pushed by the lower end of the second ladder of the second ladder 301, so that the ladder continuously from the upper floor to the lowest floor.

As shown in FIG. 8, the control unit C includes a motor 481 and a gear 482, which eventually drive the push shaft 430 and the shaft bar 420 of the wire split 410. Means 480, and the switching unit for applying the power of the motor 480 may be configured automatically.

The drive means 480 is shown in FIG. It is preferably controlled in conjunction with the alarm signal of the fire alarm device. Reference numeral 485 is a fire detection device interlock circuit board.

Horizontal rods 230 and 330 provided on the first and second ladders 200 and 300 at predetermined intervals, respectively, as shown in FIG. 10 is a perspective view of one embodiment, each of the longitudinal rods to prevent rotation Coupling portions 231 and 331 with the 210 and 310 are formed in a rectangular shape, and non-slip jaws 222 and 333 are preferably formed at predetermined positions, and the coupling with the longitudinal rods is made by compression riveting.

11A is a side view of the ladder unfolded, and FIG. 11B is a plan view.

As illustrated in FIG. 11, the first ladder 200 is fixed to the first ladder 200 at a predetermined interval in an extended state by 90 ° and is folded by a horizontal rod of the second ladder when the ladder is folded. 250).

The guard 250 is installed to be fixed to the pin 251 adjacent to the side rods 230 of the first ladder, when the ladder is folded is pushed by the side bars 330 of the second ladder, when folded, the adjacent side bars ( 230 to stop the end portion is rotated by 90 degrees to maintain a horizontal state.

The main frame 100 is preferably provided with a handle 700 is installed from both sides to the indoor side (see Fig. 1).

12 is a configuration diagram provided with a reinforcing bar in the main frame 100, etc., FIG. 12A is a front view, FIG. 12B is a sectional view taken along the line E-E of FIG. 12A, and FIG.

As shown in FIG. 12, reinforcing bars 140 and 240 are provided at lower ends of the main frame 100 and the first ladder 200, respectively, and buffer packing 350 is provided at the lower ends of the second ladder 300. Is preferably provided.

Such a configuration is structurally strengthened when the ladder unfolds and induces a soft landing.

Both sides of the main frame 100 are preferably pinned and rotatable hook 150 for being supported on the fixed body (see FIG. 1).

The hook 150 allows the support to be made on the balustrade or the security window of the balcony.

FIG. 13 is an installation state diagram of the present invention, in which only the upper layer portion is unfolded, and FIG. 13A is a front view, and FIG. 13B is a side view.

As shown in FIG. 13, the main frame 100 is provided with a fixing frame 800 to be installed to be spaced apart from a wall at a corresponding position by a predetermined interval.

The fixing frame 800 is a plurality of base support 810 is installed on both sides at a predetermined interval, at a right angle from the wall, the vertical support 820 and the vertical support (vertically installed on the base support 810 on both sides ( 820 is preferably composed of a plurality of horizontal support (830) for connecting laterally.

Look at the state of use of the evacuation ladder (1) according to the present invention having such a configuration.

The present invention of the above configuration is installed on the balcony of the building using the hook 150 or the like or can be directly installed anywhere in the wall associated with the window using the fixing frame 800.

In case of emergency such as fire or thief intrusion, press the push button 520 or operate the push shaft knob 431 or press a separate switch to move the push shaft 430 and the link device 500. The locking of the support rod 340 of the second ladder is released by the operation of one link device and is lowered by its own weight.

In addition, since the first ladder 200 supported by the locking portion 302 is sequentially lowered as the second ladder 300 descends, the ladder is unfolded.

When the ladder of the upper part is completely unfolded as described above, the lower end 301 of the second ladder enters the through part 131 of the main frame 100 in which the push button 520 of the lower layer is located, thereby pushing the push button 520. At the same time, a firm support is provided to prevent the ladder from shaking.

Therefore, the emergency ladder of the lower floor where the push button 520 was pressed is now unfolded in the same order as the upper floor, and the unfolding operation of the ladder to the lowest floor is continuously performed.

As described above, the escape ladder is opened and the escaper rides out the mainframe 100 from the window by using the handle 700 and the fixing frame 800, and the second ladder 300 is lowered to the second ladder. The guard 250 of the first ladder 200 that has been folded is also rotated to form an arc-shaped fence so that a safe escape is achieved.

In addition, the alarm generating means 600 is operated together with the operation of the link device 500 to generate an alarm signal in the building so that the neighbors can cooperatively cope with the situation early.

On the contrary, when the emergency ladder is folded again, the shaft 420 is reversely rotated by using a shaft handle (not shown) or a driving device 480 to rewind the wire 401.

When the wire is rewinded, the support rod 340 of the second ladder, through which the wire 401 is installed, is raised, meets the first ladder 200 in the middle, and the first ladder by the respective hooking portions 202 and 302. Are lifted together in a state where they are placed and enter the inside of the main frame 100 and are rolled up as much as possible so that the support rod 340 hits the second link member 530 of the link device and ascends to lock the link device. Support status is maintained.

At this time, the pressing shaft 430 and the shaft bar 420 is positioned at an angle of about 15 ° to act to guide the rotation direction of the first link member to the locking holding state.

In addition, the ratchet gear 450 is provided so that the ladder is prevented from falling while rewinding.

The present invention is not limited to the above-described embodiments and drawings since various substitutions, modifications, and changes are possible to those skilled in the art without departing from the technical spirit of the present invention. .

As described in detail above, the evacuation ladder according to the present invention,

An emergency escape route is constructed to reach the ground safely by multiple ladders being automatically unfolded in a folded state and continuously extended to the lowest floor by simple operation by pressing push button or touching switch in case of emergency without occupying the indoor space. It is a technology that has the advantage of protecting people by allowing them to be evacuated safely in case of an emergency such as a fire accident, as it can be installed in all weathers on the balcony of the building as well as the wall through the window. .

Claims (17)

A main frame 100 installed on both sides of the upper frame 130 of the vertical frame 110 having the slide space 111 therein; Installed on the slide space 111 of the main frame 100 on both sides of the vertical rod 210 and the slide bar 211 of the second ladder longitudinal rod 310 to be described later, and the both ends of the longitudinal rod 210 A first ladder 200 supported and formed with a transverse bar 230 at predetermined intervals; Longitudinal rods 310 installed on both sides of the longitudinal rods 210 and slide spaces 211 of the first ladder 200 are supported by the longitudinal rods 310 and the two longitudinal rods 310, and horizontal bars 330 are formed at predetermined intervals, A second ladder 300 having a supporting rod 340 to be rolled; The spool 410 is installed on the main frame 100 and connected to the support rod 340 of the second ladder 300 to wind the spool 410, and the release and rewind of the wire 401 is adjusted. And a control unit (C) including a link device (500) for manipulating the unfolding and folding of the first and second ladders (200) and (300). Evacuation ladder, characterized in that configured by the operation of the control unit (C) so that the first ladder 200, the second ladder 300 is spread out sequentially connected to the main frame 100 The method of claim 1, The control unit C, A shaft rod 420 is fixed to both sides of the wire spool 410 is integrally installed, and a pressing shaft 430 for the loosening operation of the spool is installed, The link device 500 is coupled to both ends of the wire bar 410, the shaft bar 420 so as to be rotatable separately from the shaft bar 420, and one side of the first link member 510 coupled to the pressing shaft 430. And a push button 520 for operating the push shaft 430 to operate the first link member 510, and interlocked by the first link member 510 and pinned to the bracket 440. And a second link having a recess 532 for locking / releasing the support rod 340 provided on the second ladder 300 and a stop 533 for fixing the first link member 510. A link device 500 including a member 530, and a spring 540 provided between the first link member 510 and the second link member 530; The link device 500 is supported, evacuation ladder, characterized in that it comprises a bracket (440) is formed a long hole (441) for the movement of the pressing shaft (430). The method according to claim 1 or 2, The pressing shaft 430 installed across the link device 500 at both sides is installed in close contact with the outer edge 411 of the wire spool 410 for the guide of the wire 401, and the pressing shaft knob 431 is approximately at the center thereof. Evacuation ladder, characterized in that is installed. The method according to claim 1 or 2, The control unit (C) is installed on the bracket 440 and is attached to the sensor 610 for generating an alarm signal and the second link member 530 is approaching the sensor 610 during the ladder unfolding operation. Evacuation ladder, characterized in that the alarm generating means (600) consisting of a magnet (620) is provided. The method according to claim 1 or 2, Evacuation ladder, characterized in that the control unit (C) is provided with a safety ratchet gear 450 that can be rotated when the push button 520 at the end of the shaft bar (420). The method according to claim 1 or 2, Evacuation ladder, characterized in that the wire 401 is connected to both wires 410 through the support rod 340 of the second ladder (300). The method according to claim 1 or 2, Evacuation ladder, characterized in that the brake plate 460 for adjusting the release rotation speed of the wire 401 by adjusting the degree of close contact with the wire spool on one side of the wire spool. The method according to claim 1 or 2, The upper bar 130 of the main frame forms a penetrating portion 131 for supporting the lower end of the second ladder, and the push button 520 is positioned at the penetrating portion to expand the ladder installed at the upper layer. An evacuation ladder, characterized in that the ladder is automatically pushed down by the lower end of the second ladder of the upper layer to extend continuously from the upper layer to the lower layer. The method according to claim 1 or 2, The control unit (C) is provided with a driving means 480 including a motor (481) that eventually drives the push shaft 430 and the shaft bar 420 of the wirespool 410, the motor 480 Evacuation ladder, characterized in that the switching unit for power supply separately provided. The method of claim 9, The drive means 480 is an evacuation ladder, characterized in that the control in conjunction with the alarm signal of the fire alarm device. The method of claim 1, Horizontal rods 230 and 330 provided on the first and second ladders 200 and 300 at predetermined intervals are coupled to the longitudinal rods 210 and 310, respectively, to prevent rotation thereof. Evacuation ladder, characterized in that the 331 is formed in a square and the non-slip jaw (222, 333) is formed at a predetermined position. The method according to claim 1 or 11, wherein Reinforcing rods 140 and 240 are provided at the lower ends of the main frame 100 and the first ladder 200, respectively, and the buffer packing 350 is provided at the lower ends of the second ladder 300. Evacuation ladder. The method of claim 1, The first ladder 200 is fixed in a state of being extended 90 ° forward in conjunction with the ladder expansion at a predetermined interval, and when the ladder is folded a plurality of guards 250 are pushed by the side bars of the second ladder is characterized in that it is provided Evacuation ladder. The method of claim 1, The main frame 100 has an evacuation ladder, characterized in that the handle 700 is provided from both sides to the indoor side. The method of claim 1, Evacuation ladder, characterized in that the main frame 100 is provided with hooks 150 to be supported on the fixed body on both sides of the predetermined position. The method of claim 1, The main frame 100 is an evacuation ladder, characterized in that the fixing frame 800 is added to be installed at a predetermined interval spaced from the wall of the corresponding position. The method of claim 16, The fixing frame 800 is a plurality of base support 810 is installed on both sides at a predetermined interval, at a right angle from the wall, the vertical support 820 and the vertical support (vertically installed on the base support 810 on both sides ( Evacuation ladder, characterized in that consisting of a plurality of transverse support (830) connecting the 820 laterally.