KR102467543B1 - ladder apparatus for emergency escape - Google Patents

Abstract

The present invention provides a ladder apparatus for an emergency escape, comprising a ladder unit which is configured in the state of folding in a frame box installed in an escape hole formed in an escape space floor of a building and is unfolded toward the escape space floor when the frame box is opened. The ladder apparatus for an emergency escape also comprises a ladder descending unit provided inside the frame box and allowing the ladder unit to be unfolded at a constant speed when the ladder unit is unfolded from the frame box toward the escape space floor. Accordingly, the ladder apparatus for an emergency escape can prevent injury of an evacuee or an inspector caused by an unfolding ladder.

Description

Ladder device for emergency escape {ladder apparatus for emergency escape}

The present invention relates to an emergency escape ladder device, and more particularly, an emergency escape ladder that is installed in an evacuation hole in a fire escape space of a building so that an evacuee can quickly and safely evacuate to a lower floor in the event of an emergency escape situation such as a fire. It's about the device.

Recently, the Act on Installation, Maintenance and Safety Management of Fire Protection Facilities (Enforcement Decree Article 15), fire safety standards for evacuation devices NFSC 301 (Article 3 Paragraph 8, Article 4 Paragraph 3 Subparagraph 10) and the Enforcement Decree of the Building Act (Article 46 Paragraph 4) Paragraph), emergency escape ladder devices are installed in medical facilities, educational facilities, lodging facilities, apartment houses and high-rise buildings.

As disclosed in Registered Patent No. 10-2253040, etc., a conventional emergency escape ladder device includes an rim box installed in an evacuation hole of a fire escape space of a corresponding floor of a building, an upper cover for opening and closing the upper portion of the rim box, and an rim It includes a lower cover that opens and closes the lower part of the box, and a ladder that is located in a folded state inside the frame box and spreads toward the lower part after the upper and lower covers are opened. Evacuees are continuously and rapidly evacuated through the ladder extending toward the lower part of the bounding box.

However, since the conventional emergency escape ladder device has a configuration in which the ladder is stored in the frame box in a folded state and then the ladder is accelerated and unfolded at a high speed by the weight of the ladder member after the lower cover is opened, the emergency When unfolding the ladder for escape in the event of an evacuation or for inspection for maintenance of the emergency escape ladder device, if an evacuator or other inspector is located at the bottom of the bounding box, injured by the ladder that spreads while accelerating at high speed There is a problem with wearing .

In addition, since the unfolding operation of the unfolding ladder cannot be stopped in the middle, when the ladder is inadvertently unfolded during maintenance, other workers or inspectors located under the ladder may be injured.

In addition, since the ladder has a structure in which the ladder is unfolded vertically without unfolding while having an oblique angle toward the bottom from the frame box, when the evacuee evacuates along the unfolded ladder, in an emergency situation, when the slope of the ladder is steep, the evacuee There is a problem in that fear or anxiety is felt, and the escape time is delayed, making rapid escape impossible.

In addition, there is a problem in that a means for notifying an evacuee or a worker located at the lower part of the ladder through sound of the ladder unfolding operation is not configured, so that the evacuee or the worker at the lower part of the ladder is injured by the ladder.

Accordingly, an object of the present invention is to provide an emergency escape ladder device capable of preventing injury to evacuators or inspectors by the ladder by allowing the ladder to unfold at a constant speed during the unfolding operation of the ladder from the frame box.

In addition, an object of the present invention is to provide an emergency escape ladder device capable of preventing injury to evacuators or inspectors by stopping a ladder during a unfolding operation in the middle if necessary.

In addition, an object of the present invention is to provide a ladder device for emergency escape that allows the evacuee to evacuate quickly while feeling a sense of security by unfolding the ladder at an oblique angle from the boundary box.

In addition, an object of the present invention is to provide an emergency escape ladder device capable of warning the unfolding operation of the ladder through sound to alert the evacuees or workers below the frame box so that they do not collide with the unfolding ladder.

Meanwhile, the object of the present invention is not limited to the above-mentioned object, and other objects not mentioned above will be clearly understood by those skilled in the art from the description below.

According to the present invention, an emergency escape ladder including a ladder portion extending toward the bottom of the escape space when the frame box is opened in a state of being configured in a folded state inside the frame box installed in the escape hole formed at the bottom of the escape space of the building. In the device, there is provided an emergency escape ladder device including a ladder descending portion configured inside the frame box and allowing the ladder portion to unfold with a constant speed when the ladder portion is unfolded from the frame box toward the bottom of the evacuation space.

Here, the emergency escape ladder device is configured inside the bounding box and limits the operation of the ladder waning part so that the ladder part is restrained while maintaining the folded state inside the bounding box, and at the same time, the ladder stopper part that allows the ladder part to unfold from the bounding box is further added. It is preferable to include

In addition, the ladder bracing portion, a cylindrical housing fixed to the inner surface of the frame box; a wire drum configured to be rotatable on a rotating shaft penetrating the inside of the housing and in which a wire is wound and wound when the rotating shaft rotates; A wire having one end fixed to the wire drum and the other end fixed to the lowermost end of the ladder part and wound around the wire drum; and a centrifugal brake configured to be rotatable on the rotational shaft and configured to rotate the rotational shaft at a constant speed when the wire drum connected to the ladder is rotated as the ladder is unfolded so that the rotational shaft is rotated.

In addition, the ladder stopper portion, a stopper gear configured to be rotatable to the rotating shaft passing through the inside of the housing of the ladder arm portion; A stopper configured inside the boundary box and engaged with a stopper gear exposed to the outside of the housing through an opening of the housing to suppress rotation of the rotating shaft; A control lever that is connected to the stopper and rotates the stopper so that when the stopper and the stopper gear are meshed, the ladder part is stored in a folded state inside the bounding box, and when the stopper and the stopper gear are disengaged, the ladder part is unfolded; And when the control lever is rotated, the control lever and the stopper are maintained in a rotated state, and when the control lever is returned to the original position by the evacuee, the stopper is returned to the original position and the stopper and the stopper gear are meshed so that the unfolding operation of the ladder part is stopped It is preferable to include a stopper return link body that does.

On the other hand, according to the present invention, emergency escape including a ladder portion that spreads toward the bottom of the escape space when the frame box is opened in a state of being configured in a folded state inside the frame box installed in the escape hole formed at the bottom of the escape space of the building. In the ladder device for emergency escape, there is provided an emergency escape ladder device including a ladder angle holding unit configured inside the border box and allowing the ladder unit to unfold at an oblique angle toward the bottom of the shelter when the ladder unit is unfolded from the border box.

Here, the ladder angle holding unit, a bracket fixed to the inside of the frame box; Corresponding to both sides of the bracket and the ladder fixing piece in which both ends of the uppermost ladder frame of the plurality of ladder frames of the ladder portion are coupled and fixed in a rotatable state; And a part of both ends of the ladder frame at the top of the ladder frames formed by bending with a predetermined inclination from the middle to the bottom of the ladder fixture and coupled and fixed to the ladder fixture is seated and supported during the unfolding operation of the ladder frame, so that the ladder frames are evacuated It is preferable to include a ladder inclined support piece to unfold at an oblique angle toward the bottom of the space.

On the other hand, according to the present invention, emergency escape including a ladder portion that spreads toward the bottom of the escape space when the frame box is opened in a state of being configured in a folded state inside the frame box installed in the escape hole formed at the bottom of the escape space of the building. In the ladder device for emergency escape, there is provided a ladder device for emergency escape including a notification unit configured inside the frame box and warning through sound that the ladder unit is in the unfolding operation when the rotating member rotates during the unfolding operation of the ladder unit.

Here, the rotating member is a wire drum of a ladder waning part that is configured inside the rim box and allows the ladder part to unfold with a constant speed when the ladder part is spread from the rim box toward the bottom of the shelter space, or is configured inside the rim box It is preferable that it is at least one of stopper gears of the ladder stopper part that restricts the drive of the ladder waning part so that the ladder part is restrained while maintaining the folded state inside the frame box and at the same time expands the ladder part from the frame box.

In addition, the notification unit, a notification species fixed to the inner surface of the bounding box; The bounce end is located in contact with the rotating member, the strike end is located at a predetermined distance apart from the notification bell, and the middle part of the bounce end and the strike end is rotatably coupled to the inner surface of the frame box, so that the rotation member It is preferable to include a striking piece so that the striking end strikes the alarm bell when the bounce end is bounced at regular intervals during rotation.

Therefore, according to the present invention, when the ladder is unfolded from the frame box, the ladder is unfolded at a constant speed, so that an evacuator or an inspector may be prevented from being injured by the ladder.

In addition, it is possible to prevent injuries of evacuators or inspectors by allowing the ladder during the unfolding operation to be stopped in the middle if necessary.

In addition, the ladder can be unfolded at an oblique angle from the boundary box so that the evacuee can evacuate quickly while feeling a sense of stability.

In addition, by warning the unfolding operation of the ladder through sound, it is possible to alert evacuees or workers below the frame box so as not to collide with the unfolding ladder.

On the other hand, the effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 and 2 are views showing a ladder folded inside the bounding box in the emergency escape ladder device according to the present invention;
3 and 4 are diagrams showing a state in which the ladder is unfolded from the bounding box in the emergency escape ladder device of the present invention;
5 and 6 are diagrams showing the configuration of a ladder part, a ladder waning part, a ladder stopper part and a ladder angle holding part constituted in a frame box in the emergency escape ladder device of the present invention;
7 to 10 are diagrams showing the configuration of the ladder arm portion in the emergency escape ladder device of the present invention;
11 to 17 are diagrams showing the configuration of a ladder stopper and a ladder angle holding unit in the emergency escape ladder device of the present invention; and
18 to 20 are views showing the configuration of the notification unit in the emergency escape ladder device of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 20, the emergency escape ladder device according to a preferred embodiment of the present invention includes a frame box 110 installed in an escape hole formed at the bottom of an escape space such as a ceiling slab of a building, An upper cover 120 configured on the border box 110 to open and close the upper portion of the border box 110, a lower cover 130 configured on the border box 110 to open and close the lower portion of the border box 110, and an upper cover 120 ) And the lower cover 130 to the upper cover 120 and the lower cover 130 in a state in which the link assembly 140 and the lower cover 130 simultaneously open and close the bounding box 110 in a folded state inside the bounding box 110 When the border box 110 is opened, the ladder unit 150 is formed inside the border box 110 and the ladder unit 150 extends toward the floor of the shelter space when the border box 110 is opened. In the case of the ladder portion 150, which is configured inside the ladder waning portion 160 and the bounding box 110 to unfold at a constant speed, while maintaining the folded state of the ladder portion 150 inside the bounding box 110 Ladder stopper part 170 that allows the ladder part 150 to unfold from the bounding box 110 at the same time as being constrained, and is configured inside the bounding box 110 and extends the ladder part 150 from the bounding box 110 In this case, a ladder angle maintenance unit 180 is included so that the ladder unit 150 is spread at an oblique angle toward the bottom of the shelter space.

Here, the escape space floor refers to a floor where an emergency escape situation such as a fire occurs, and the escape space floor refers to a lower floor of the escape space floor.

The border box 110 is coupled to the escape hole at the bottom of the escape space, and may have a box shape with upper and lower portions penetrating.

Here, the frame box 110 has a built-in link assembly 140, a ladder part 150, a ladder waning part 160, a ladder stopper part 170, and a ladder angle maintaining part 180. It is preferable that it is a metal material having durability and heat resistance.

The upper cover 120 is hinged to one side of the upper portion of the rim box 110 and is a means for opening and closing the upper portion of the rim box 110 as it rotates. Since it may have a configuration, a detailed description thereof will be omitted.

The lower cover 130 is a means for opening and closing the lower part of the bounding box 110 as it is hingedly connected to one side of the lower part of the bounding box 110 and rotated, and may have a known configuration, so a detailed description thereof will be omitted. do.

The link assembly 140 is connected to the upper cover 120 and the lower cover 130 around the inner circumferential surface of the rim box 110 so that the upper cover 120 and the lower cover 130 simultaneously hold the rim box 110 to open or to close.

Here, the link assembly 140 includes an L-shaped link rotatably connected around a fixed hinge fixed to the inner circumferential surface of the frame box 110, and an upper cover 120 and an upper end of the L-shaped link, respectively, as a first intermediary hinge. It may include a first intermediary link connected by, and a second intermediary link connecting each lower end of the lower cover 130 and the L-shaped link by the second intermediary hinge.

Therefore, according to the link assembly 140, when the upper cover 120 is rotated and the bounding box 110 is gradually opened, the first intermediate link connected to the upper cover 120 rotates the L-shaped link clockwise around the fixed hinge. And, accordingly, the lower cover 130 is rotated counterclockwise by the second intermediary link connected to the lower end of the L-shaped link, and the rim box 110 is gradually opened.

In addition, when the upper cover 120 is completely rotated in the vertical direction, the first intermediary link connected to the upper cover 120 further rotates the L-shaped link in the clockwise direction around the fixed hinge, and accordingly, the lower end and the L-shaped link As the lower cover 130 is rotated in the vertical direction by the connected second intermediary link, the rim box 110 is completely opened.

The ladder unit 150 is configured in a folded state inside the rim box 110, and when the rim box 110 is opened by the upper cover 120 and the lower cover 130, the evacuation unfolds toward the bottom of the evacuation space. As a means, a plurality of ladder frames 151 and a plurality of ladder frames 151 that have a 'U' shape and allow the evacuee located at the bottom of the escape space to climb down to the bottom of the escape space while stepping on them with their feet or gripping them with their hands. A plurality of connection frames 152 and a pair of connection frames 152-2 located at the lowermost part of the plurality of connection frames 152 that allow the plurality of ladder frames 151 to be unfolded or folded by being linked. ) and a connecting rod 153 for connecting them.

Here, the ladder frame 151 may be a pipe member having a hollow, and the frames having a '1' shape are bent into a 'U' shape so that the frames having a '1' shape form a 'U' shape. It is possible to improve manufacturability and assemblability by omitting the process of assembling in a ruler shape.

Therefore, according to the ladder unit 150, in a state where the ladder frames 151 are stacked and folded through the connection frames 152 to be built into the inside of the bounding box 110, when an emergency escape situation occurs, the bounding box 110 ), the evacuee located at the bottom of the escape space can be evacuated while going down the ladder frames 151 to the bottom of the escape space.

The ladder waning part 160 is constructed inside the frame box 110, and when the ladder part 150 is spread from the frame box 110 toward the bottom of the shelter space, the ladder part 150 unfolds with a constant speed. As a means for enabling, the cylindrical housing 161 fixed to the inner surface of the rim box 110 is configured to be rotatable to the rotating shaft 162 penetrating the inside of the housing 161, and the rotation of the rotating shaft 162 The wire drum 163 on which the wire (not shown) is wound and wound, one end is fixed to the wire drum 163 and the other end is fixed to the lowermost end of the ladder part 150, that is, the connecting rod 153, and the wire drum 163 A wire (not shown) having a wound state and configured to be rotatable on the rotating shaft 162 and connected to the ladder part 150 as the ladder part 150 is unfolded from the bounding box 110 by its own weight. When the wire drum 163 is rotated by (not shown) and the rotation shaft 162 is rotated, the rotation shaft 162 is rotated at a constant speed so that the ladder portion 150 is unfolded at a constant speed. Centrifugal brake 164 Include etc.

Here, the ladder waning part 160 may be configured to be installed on the bracket 181 of the ladder angle maintenance part 180 described later.

Therefore, according to the ladder waning portion 160, the lowermost end of the ladder portion 150 is connected to one end of the wire (not shown), and the wire (not shown) is wound around the wire drum 163, so that the ladder portion ( 150) is unfolded, a wire (not shown) is pulled from the wire drum 163, and the wire drum 163 and the rotating shaft 162 rotate. At this time, the rotating shaft 162 is rotated by the centrifugal brake 164 This always has a constant speed or has a limited speed, so that the ladder part 150 can be safely lowered.

The ladder stopper part 170 is configured inside the rim box 110 and limits the driving of the ladder waning part 160 so that the ladder part 150 is restrained while maintaining a folded state inside the rim box 110, At the same time, as a means for spreading the ladder part 150 from the frame box 110, the stopper gear 171 configured to be rotatable on the rotating shaft 162 penetrating the inside of the housing 161 of the ladder waning part 160 , Stopper configured inside the bounding box 110 and engaged with the stopper gear 171 exposed to the outside of the housing 161 through the opening 161a of the housing 161 to suppress rotation of the rotating shaft 162 ( 172), when the stopper 172 is connected to the stopper 172 and the stopper 172 is rotated so that the stopper 172 and the stopper gear 171 are engaged, the ladder part 150 is folded inside the bounding box 110 When the stopper 172 and the stopper gear 171 are disengaged, the control lever 173 for unfolding the ladder 150 and the control lever 173 and the stopper when the control lever 173 rotates 172 is maintained in a rotated state, and when the control lever 173 is returned to the original position by the evacuee, the stopper 172 is returned to the original position, and the stopper 172 and the stopper gear 171 are engaged so that the ladder part It includes a stopper return link body 174 and the like to simply stop the unfolding operation of the ladder unit 150 when a person is positioned under the ladder unit 150 during the unfolding operation of (150).

Here, the stopper return link body 174 has a first link bar 175 having one end rotatably connected to the stopper 172 and one end rotatably connected to the other end of the first link bar 175, and a bounding box ( 110) is guided with the other end passing through the connector 176 fixed to the inner surface of the connector 176 so that the other end and one end of the first link bar 175 are in a straight line by the rotation of the control lever 173 A second link bar 177 for maintaining the disengaged state of the stopper 172 and the stopper gear 171 by maintaining the state in which the stopper 172 is rotated in the opposite direction of the stopper gear 171 when rotating with respect to And the other end of the second link bar 177 inserted into the second link bar 177 and connected to the first link bar 175 when the stopper 172 is rotated by the rotation operation of the control lever 173 is the connector 176 ) When guided downward, it is compressed so that the first link bar 175 and the second link bar 177 have a straight state, and the stopper 172 is returned to its original position by the return rotation operation of the control lever 173 In this case, the compressed state is released and the second link bar 177 returns to the upper side of the connector 176 so that the first link bar 175 and the second link bar 177 are bent at a predetermined angle, and the stopper ( 172) includes a compression spring 178 and the like to engage the stopper gear 171.

Therefore, according to the ladder stopper part 170, the control lever 173 is rotated counterclockwise by pressing the foot of the evacuee for the operation of spreading the ladder part 150, and the stopper 172 is rotated clockwise. In this case, the engagement state of the stopper 172 and the stopper gear 171 is released, and the rotational shaft 162 penetrating the housing 161 of the ladder waning part 160 rotates by the weight of the ladder part 150, thereby , the ladder unit 150 is unfolded.

In addition, in this state, when the unfolding operation of the ladder unit 150 is to be stopped, simply rotating the control lever 173 counterclockwise through pressing in the counterclockwise direction stops the return link body ( As the stopper 172 is returned to its original position by 174, the stopper 172 and the stopper gear 171 are engaged to stop the unfolding operation of the ladder unit 150, thereby lowering the ladder unit 150 When there is another evacuee at the location, it is possible to prevent a safety accident from occurring due to another evacuee colliding with the ladder unit 150 .

The ladder angle maintaining unit 180 is configured inside the border box 110 and when the ladder unit 150 is unfolded from the border box 110, the ladder unit 150 is unfolded at an oblique angle toward the bottom of the shelter space As a means for doing, the bracket 181 fixedly installed inside the frame box 110, the ladder frame at the top of the plurality of ladder frames 151 of the ladder part 150 corresponding to both sides of the bracket 181 ( 151-1) is formed by bending while having a predetermined inclination from the middle to the bottom of the ladder fixing piece 182, the ladder fixing piece 182 in which both ends are coupled and fixed in a rotatable state, and coupled and fixed to the ladder fixing piece 182 Among the ladder frames 151, parts of both ends of the uppermost ladder frame 151-1 are seated and supported during the unfolding operation of the ladder frame 151, so that the ladder frames 151 are unfolded at an oblique angle toward the bottom of the shelter space Of the ladder frame 151-1 at the top of the ladder frame 151 that is bent vertically at the top of the ladder inclined support piece 183 and the ladder fixing piece 182 and coupled to the ladder fixing piece 182. A portion of both ends includes a ladder anti-rotation piece 184 to prevent further rotation to the top of the ladder fixing piece 182 during the folding operation of the ladder frame 151.

Here, on the ladder fixing piece 182, the extension frame 185, which is separately fastened and extended to both ends of the ladder frame 151-1 at the top of the ladder frames 151, is rotatably fixed, and at the same time, the connection frame 152 Among them, extension links 186 separately linked to both ends of the uppermost connection frame 152-1 may have a structure in which they are rotatably fixed.

In addition, the bracket 181 is bent in a 'c' shape in the center and fastening holes 181a are formed in the center, so that the housing 161 of the ladder arm 160 is fastened and accommodated in the recessed part of one side. And the stopper 172 of the ladder stopper part 170 and the stopper return link body 174 are installed, and the cover body 165 and the rotation shaft 162 covering the housing 161 of the ladder waning part 160 on the other surface ) The rotation block 166 extending to is exposed and the control lever 173 of the ladder stopper part 170 may be configured to be installed in a state capable of interlocking with the stopper 172.

Here, the rotating block 166 is the rotating shaft of the ladder waning part 160 conveniently through a separate rotating tool when the ladder part 150 is unfolded for emergency escape or needs to be folded and stored again after it is unfolded for maintenance ( 162) is rotated in the opposite direction, and since it may have a known configuration, a detailed description thereof will be omitted.

Therefore, according to the ladder angle maintenance unit 180, when the ladder unit 150 is unfolded, the upper end of the uppermost ladder frame 151-1 forms a predetermined angle to the ladder inclined support piece 183 of the bracket 181. The ladder frames 151 continuously linked to the uppermost ladder frame 151-1 are unfolded while maintaining a predetermined angle, so that the ladder extending from the bounding box 110 is at the bottom of the shelter space. It is unfolded at an oblique angle towards the side, allowing the evacuee to evacuate feeling more secure.

On the other hand, the ladder device for emergency escape according to the present invention is configured inside the frame box 110, and when any one of the rotating members of the ladder waning part 160 or the ladder stopper part 170 rotates, the ladder part 150 It further includes a notification unit 190 for preventing collision with the ladder unit 150 by informing an evacuee located at the bottom of the evacuation space that the evacuation space is unfolding.

Here, the notification unit 190 includes a notification bell 191 fixed to the inner surface of the frame box 110 and a wire drum 163 or ladder stopper portion 170 of the ladder waning portion 160 having a bar shape. The bounce stage 192 is located in contact with the stopper gear 171 of the ring bell 191, the strike stage 193 is located at a predetermined distance apart, and the bounce stage 192 and the strike stage 193 The middle part of is rotatably coupled to the inner surface of the frame box 110, and the wire drum 163 or the stopper rotates when the wire drum 163 or the stopper gear 171 is rotated by the descent of the ladder part 150. The wire drum 163 or the stopper It includes a striking piece 194 and the like so that the striking end 193 strikes the notification bell 191 when the bounce end 192 bounces off the gear 171 at regular intervals.

Here, bounce blocks (not shown) are formed at regular intervals at the edges of the wire drum 163 and the ladder stopper 171, so that when the wire drum 163 and the ladder stopper 170 rotate, the bounce end 192 is constant It can have a configuration that bounces at intervals.

In addition, the notification bell 191 and the hitting piece 194 may be configured to be installed in the bracket 181 of the ladder angle maintenance unit 180 through the notification unit bracket 195.

Therefore, according to the notification unit 190, when the ladder unit 150 is unfolded without a separate operating power source, a predetermined noise is generated toward the surroundings, thereby suppressing collision with other evacuees during the unfolding operation of the ladder unit 150 In addition, it is possible to prevent criminals from entering by using an emergency escape ladder device.

Hereinafter, the operation of the emergency escape ladder device according to a preferred embodiment of the present invention will be described.

First, when an emergency escape situation such as a fire occurs on a corresponding floor of a building and you want to evacuate to a lower floor, the bounding box 110 ) is open at the top.

At this time, when the border box 110 is opened through the upper lid 120, the lower lid 130 is also interlocked at the same time, so that the lower portion of the border box 110 is also opened.

Thereafter, the ladder unit 150 built in a folded state inside the frame box 110 is lowered toward the bottom of the evacuation space and unfolded.

Here, the ladder part 150 has a speed at which the descent speed is limited by the ladder descending part 160, so that the ladder part 150 is safely lowered and other evacuees located at the bottom of the evacuation space can move away from the ladder part 150. You can avoid colliding.

In addition, the ladder unit 150 may maintain a folded state from the ladder waning unit 160 by the ladder stopper unit 170 and then perform an unfolding operation. At this time, the unfolding operation of the ladder stops in the process of unfolding the ladder If it is necessary, the unfolding operation of the ladder can be stopped quickly and safety accidents can be prevented.

In addition, the ladder part 150 can be spread obliquely at a predetermined angle toward the bottom of the shelter space by the ladder angle maintenance part 180, so that the evacuee can evacuate feeling more stable.

Therefore, according to the foregoing, when the ladder unit 150 is unfolded from the frame box 110, the ladder unit 150 is unfolded at a constant speed, and the ladder unit 150 during the unfolding operation is stopped in the middle so that the evacuee or Injury to inspectors can be prevented.

In addition, the ladder part 150 can be spread from the frame box 110 at an oblique angle so that the evacuee can quickly evacuate by riding the ladder part 150 while feeling a sense of stability.

In addition, when the ladder part 150 is unfolded from the boundary box 110, a sound is warned through the notification unit 190 to alert the evacuees or workers under the boundary box 110 to alert the unfolded ladder part 150. ) can be prevented from colliding.

Although specific embodiments have been described in the present invention described above, various modifications can be made without departing from the scope of the present invention. Therefore, the scope of the invention should not be determined by the described embodiments, but by the equality of the claims and claims.

Claims (9)

Ladder portion 150, which is installed in the escape hole formed at the bottom of the escape space of the building and unfolds toward the bottom of the escape space when the frame box 110 is opened in a folded state inside the frame box 110; Ladder waning part 160 configured inside the rim box 110 and allowing the ladder part 150 to unfold with a constant speed when the ladder part 150 is spread from the rim box 110 toward the bottom of the evacuation space And, it is configured inside the bounding box 110 and restricts the driving of the ladder waning part 160 so that the ladder part 150 is restrained while maintaining a folded state inside the bounding box 110, and at the same time the bounding box 110 In the ladder device for emergency escape including a ladder stopper portion 170 for unfolding the ladder portion 150 from,
The ladder waning part 160,
A cylindrical housing 161 fixed to the inner surface of the border box 110; A wire drum 163 configured to be rotatable on the rotational shaft 162 penetrating the housing 161 and in which a wire (not shown) is wound and wound when the rotational shaft 162 rotates; A wire (not shown) having one end fixed to the wire drum 163 and the other end fixed to the lowermost end of the ladder part 150 and wound around the wire drum 163; And when the wire drum 163 connected to the ladder part 150 is rotated as the ladder part 150 is unfolded and the rotation shaft 162 is rotated, the rotation shaft 162 is constant. Including a centrifugal brake 164 to rotate at speed,
The ladder stopper part 170,
A stopper gear 171 configured to be rotatable on the rotational shaft 162 penetrating the inside of the housing 161 of the ladder waning portion 160; A stopper 172 configured inside the rim box 110 and engaged with a stopper gear 171 exposed to the outside of the housing 161 through the opening 161a of the housing 161 to suppress rotation of the rotating shaft 162 ); When connected to the stopper 172 and the stopper 172 is rotated so that the stopper 172 and the stopper gear 171 are engaged, the ladder part 150 is stored in a folded state inside the rim box 110 And when the stopper 172 and the stopper gear 171 are disengaged, the control lever 173 to unfold the ladder portion 150; And when the control lever 173 rotates, the control lever 173 and the stopper 172 maintain the rotated state, and when the control lever 173 is returned to the original position by the evacuee, the stopper 172 returns to the original position An emergency escape ladder device comprising a stopper return link body 174 for stopping the unfolding operation of the ladder part 150 by engaging the stopper 172 and the stopper gear 171. delete delete delete According to claim 1,
Ladder angle holding unit 180 configured inside the rim box 110 and allowing the ladder 150 to unfold at an oblique angle toward the bottom of the shelter space when the ladder 150 is unfolded from the rim box 110 Emergency escape ladder device, characterized in that it further comprises. The method of claim 5, wherein the ladder angle maintenance unit 180,
A bracket 181 fixedly installed inside the border box 110;
Corresponding to both sides of the bracket 181, and both ends of the uppermost ladder frame 151-1 among the plurality of ladder frames 151 of the ladder part 150 are combined and fixed in a rotatable state. Ladder fixing piece 182 ; and
Some of both ends of the ladder frame 151-1 at the top of the ladder frames 151 formed by bending while having a predetermined inclination from the middle to the bottom of the ladder fixing piece 182 and coupled and fixed to the ladder fixing piece 182 Ladder device for emergency escape, characterized in that it includes a ladder inclined support piece 183 for supporting the ladder frame 151 to be seated and supported during the unfolding operation so that the ladder frames 151 are unfolded at an oblique angle toward the bottom of the shelter space. According to claim 1,
Further comprising a notification unit 190 configured inside the rim box 110 and warning through sound that the ladder unit 150 is in the unfolding operation when the rotating member rotates during the unfolding operation of the ladder unit 150 Emergency escape ladder device, characterized in that. The method of claim 7, wherein the rotating member,
Ladder waning part 160 configured inside the rim box 110 and allowing the ladder part 150 to unfold with a constant speed when the ladder part 150 is spread from the rim box 110 toward the bottom of the evacuation space of the wire drum 163, or
It is configured inside the rim box 110 and restricts the operation of the ladder waning part 160 so that the ladder part 150 is restrained while maintaining a folded state inside the rim box 110, and at the same time, the ladder from the rim box 110 Emergency escape ladder device, characterized in that at least one of the stopper gear 171 of the ladder stopper portion 170 to unfold the portion 150. The method of claim 7, wherein the notification unit 190,
a notification bell 191 fixed to the inner surface of the border box 110;
The bounce end 192 is located in contact with the rotating member, and the strike end 193 is located at a predetermined distance from the notification bell 191, and the middle portion of the bounce end 192 and the strike end 193 Is rotatably coupled to the inner surface of the rim box 110 so that the striking end 193 hits the notification bell 191 when the bounce end 192 bounces at regular intervals when the rotating member rotates. Emergency escape ladder device, characterized in that it comprises (194).

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