KR20220159870A - Fire protection automatic doors with sliding doors - Google Patents

Abstract

The present invention relates to a fireproof automatic door including a sliding door. The fireproof automatic door of the present invention includes a first door (100); a second door (200); and a driving device (500). An objective of the present invention is to provide the fireproof automatic door that can be easily opened in case of fire.

Description

Fire protection automatic doors with sliding doors {Fire protection automatic doors with sliding doors}

The present invention relates to an automatic fire prevention door, and more particularly, to an automatic fire prevention door that can be easily opened in case of fire.

In general, unmanned security systems for maximizing user convenience and cost reduction are installed in various buildings used for residential purposes, hospitals, offices, etc., and installation of automatic door systems that are selectively automatically opened and closed is increasing.

Most of the automatic doors installed as the automatic door system are sliding automatic doors, and the automatic sliding doors are formed of an opening/closing door that slides in the left and right directions and a fixed door that is fixed at a certain position.

Specifically, in a state where the opening and closing door and the fixed door are installed in parallel along the same direction, when a person enters or exits, the opening and closing door automatically slides in the left and right directions, and the opening and closing door moves toward the fixed door and overlaps them. It works in a losing way.

Meanwhile, the automatic door usually controls an opening and closing operation by detecting a person entering and exiting the door through a sensor, and the opening and closing operation is performed by electric power and a motor operated thereby.

However, when a fire breaks out inside a building, the door frame is bent into the inner space of the automatic door due to air combustion, and when the door frame is bent, the door cannot be slid and opened properly, resulting in increased human casualties. There is a problem being

In addition, the high-temperature smoke generated by a fire is a toxic gas with low oxygen content and high carbon monoxide content, which directly damages the human body and at the same time blurs the evacuee's vision and causes psychological anxiety. In the case of a general automatic door, There is a problem in that smoke spreads throughout the building through the space between the door frames.

Korean Registered Patent No. 10-2218063 Republic of Korea Patent Publication 10-2010-0094084 Korean registered patent 10-1023229 Korean Registered Patent No. 10-1493000 Korean Registered Office 20-0425620 Republic of Korea Utility Model 20-2010-0009291

An object of the present invention is to provide an automatic fire door that can be easily opened in case of fire.

The present invention, a first door (100) fixed to a building, disposed inside an outer structure (300) having an entrance (305) formed therein so that people can pass through, and assembled to be slidably movable in the left and right directions; a second door 200 disposed inside the outer structure 300 and assembled to slide in the left and right directions; and a driving device 500 disposed on the outer structure 300 and sliding and moving the first door 100 or the second door 200, wherein the first door 100 includes a first outer door 110; a first inner door 120 disposed inside the first outer door 110; A rail assembly 400 disposed between the first outer door 110 and the first inner door 120 and guiding the sliding movement of the first inner door 120, wherein the rail assembly includes the The first inner door 120 provides an automatic fire prevention door arranged to be drawn forward.

The outer door 110 includes the 1-1st outer frame 111 and the 1-2nd outer frame 112 disposed opposite to each other in the left and right directions, and the 1-3rd outer frame 112 disposed to face each other in the vertical direction. It includes an outer frame 113 and a 1-4 outer frame 114, and the 1-1 outer frame 111 and the 1-2 outer frame 112 are extended and disposed in the vertical direction, The 1-3 outer frame 113 and the 1-4 outer frame 114 may be disposed to extend in a horizontal direction.

The first inner door 120 includes the 1-1 inner frame 121 and the 1-2 inner frame 122 disposed to face each other in the left and right directions, and the first inner frame 122 disposed to face each other in the vertical direction. The 1-3 inner frame 123 and the 1-4 inner frame 124 are included, and the 1-1 inner frame 121 and the 1-2 inner frame 122 are extended in the vertical direction. In addition, the 1-3 inner frames 123 and 1-4 inner frames 124 may be extended and disposed in a horizontal direction.

The rail assembly 400 may include a first rail 410 coupled to the first outer door 110 and extended in a longitudinal direction; a second rail 420 that is coupled to the first inner door 120, extends and extends in the front-back direction, and moves along the first rail 410; The second rail 420 and the first inner door 120 may include a first rotation shaft 430 that is hinged.

The first rotation shaft 430 hinge-couples the 1-2 inner frame 122 and the second rail 420, and the first inner door 120 moves forward about the first rotation shaft 430. can be rotated to

First, in the present invention, since the first inner door that can be slid and rotated in the outdoor direction is disposed on the first door disposed to be slidable in the left and right directions, it is possible to evacuate to the outside through the first inner door in case of fire. There are advantages to being able to

Second, in the present invention, since the first inner door is rotated after moving the first inner door by pushing it to the outdoor side, the rotating shaft of the first inner door can be moved to the outdoor side, and through this, when the first inner door rotates, the surrounding area Interference with structures can be minimized.

Thirdly, in the present invention, the end opposite to the first rotating shaft does not engage with the 1-1 outer frame of the first outer door only after the first inner door is sufficiently drawn forward, so that the first inner door It has the advantage of preventing unintentional opening.

Fourth, in the present invention, since the push bar is further disposed on the first inner door, the user can intuitively check the pushing position of the door in case of fire, and the force transmitted to the push bar is uniformly transmitted to both sides of the first inner door. Both sides of the first inner door have the advantage of being able to move uniformly.

Fifth, in the present invention, since the door stopper is disposed in front of the rotation radius of the first inner door, it is possible to prevent the first inner door from being opened unintentionally.

1 is a perspective view of an automatic fire prevention door according to a first embodiment of the present invention.
Figure 2 is a perspective view of the second door of Figure 1 is opened.
Figure 3 is a top cross-sectional view of Figure 1;
FIG. 4 is an enlarged view illustrating the rail assembly of FIG. 3 .
FIG. 5 is a first view of an operation example of FIG. 4 .
6 is a second view of an operation example of FIG. 4 .
7 is a plan view showing an automatic fire prevention door according to a second embodiment of the present invention.
8 is a partial enlarged view of FIG. 7 .
9 is an exemplary operation diagram of FIG. 8 .

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numbers designate like elements throughout the specification.

1 is a perspective view of an automatic fire prevention door according to a first embodiment of the present invention, FIG. 2 is a 1st working example of FIG. 1, FIG. 3 is a 2nd working example of FIG. 1, and FIG. 4 is a plan view of FIG. 1 , and FIG. 5 is a partially enlarged view of FIG. 4 .

The fireproof automatic door according to the present embodiment is fixed to a building, has an outer structure 300 having an entrance 305 formed therein so that people can pass therethrough, disposed inside the outer structure 300, and slides in the left and right directions. A first door 100 assembled to be movable, disposed inside the outer structure 300, and a second door 200 assembled to be slidably movable in the left and right directions, disposed on the outer structure 300 and a driving device 500 for sliding and moving the first door 100 or the second door 200.

Since the configuration of the drive device 500 is common to those skilled in the art, a detailed description thereof will be omitted.

The first door 100 or the second door 200 is characterized in that it can be opened and closed in the forward and backward directions when sliding movement in the left and right directions is impossible.

The first door 100 and the second door 200 may be disposed on different planes, and the first door 100 and the second door 200 may move relative to each other.

In this embodiment, the first door 100 is disposed on the outdoor side (front), and the second door 200 is disposed on the indoor side (rear).

In this embodiment, the entrance 305 can be opened through the second door 200, the first door 100 can be maintained in a fixed state, and only in case of evacuation, such as a fire, the first door (100) can be used to make emergency evacuation to the outside.

Unlike the present embodiment, it is okay to perform both daily access and emergency evacuation through the first door 100 .

The outer structure 300 includes a lower frame 310 fixed to the floor 1 of the building, and an upper frame 320 that is spaced apart from the lower frame 310 and disposed on the upper side and fixed to the ceiling side of the building and a first side frame 330 connecting the lower frame 310 and the upper frame 320 and a fourth side frame 340 connecting the lower frame 310 and the upper frame 320 do.

The outer structure 300 has an entrance 305 that can enter and exit in the front and rear directions is formed on the inside, and at least one of the first door 100 and the second door 200 can open and close the entrance 305. have.

The entrance 305 is opened in the forward and backward directions, and the first door 100 and the second door 200 are disposed inside the outer structure 300 .

The first door 100 and the second door 200 are disposed surrounded by the lower frame 310 , the upper frame 320 , the first side frame 330 and the fourth side frame 340 .

The lower frame 310 has a plurality of rails on which the first door 100 and the second door 200 slide, respectively. For the division, the rail on which the first door 100 is moved is referred to as a first rail 301, and the rail on which the second door 200 is moved is referred to as a second rail 302.

In this embodiment, the first rail 301 is disposed in the front, and the first door 100 can slide along the first rail 301 in the left and right directions. The second rail 302 is disposed behind the first rail 301, and the second door 200 can slide along the second rail 302 in the left and right directions.

At least some of the first door 100 and the second door 200 overlap in the front-back direction. The entirety of the first door 100 and the second door 200 may be overlapped in the front-back direction, and in this case, half of the entrance 305 is open.

The first door 100 includes a first outer door 110, a first inner door 120 disposed inside the first outer door 110, the first outer door 110 and the first A rail assembly 400 disposed between the inner doors 120 and guiding the slide movement of the first inner door 120 is included.

In this embodiment, the first inner door 120 is characterized in that it can slide in the forward and backward directions with respect to the first outer door 110 .

* Also, after the first inner door 120 is drawn forward from the first outer door 110, there is a feature that can be rotated around the first rotation shaft 430 on one side. The first outer door 110 provides a frame on which the first inner door 120 can slide and rotate.

The first outer door 110 is disposed toward the outer structure 300 and supported by the outer structure 300 .

The first outer door 110 may have a rectangular shape when viewed from the front.

In this embodiment, the outer door 110 supports the first inner door 120 .

The outer door 110 includes the 1-1 outer frame 111, the 1-2 outer frame 112, the 1-3 outer frame 113 and the 1-4 outer frame ( 114).

The 1-1 outer frame 111 and the 1-2 outer frame 112 are extended and disposed in the vertical direction, and the 1-3 outer frame 113 and the 1-4 outer frame 114 are It is extended and arranged in a horizontal direction.

In this embodiment, the 1-1 outer frame 111 is disposed on the left side and is disposed opposite to the 1-1 side frame 330, and the 1-2 outer frame 112 is disposed on the left side. It is disposed on the right side of the outer frame 111 and is disposed toward the second side frame 340 .

The 1-3 outer frame 113 connects the lower sides of the 1-1 outer frame 111 and the 1-2 outer frame 112 and is disposed on the upper side of the lower frame 310 .

Rollers (not shown) may be disposed on the 1-3 outer frame 113 , and the rollers of the 1-3 outer frame 113 may move along the first rail 301 .

The 1-4 outer frames 114 are disposed below the upper frame 320 and are disposed opposite to the upper frame 320 .

The 1-4 outer frame 114 connects the upper sides of the 1-1 outer frame 111 and the 1-2 outer frame 112 and is disposed on the lower side of the upper frame 320 .

In a state where the first inner door 120 is installed, the first outer door 110 can move in the left and right directions along the first rail 301 and supports the load of the first inner door 120. do.

The first inner door 120 includes the 1-1st inner frame 121, the 1-2nd inner frame 122, the 1-3rd inner frame 123 and the 1-4th inner frame 121 disposed facing each other. frame 124.

The 1-1st inner frame 121 and the 1-2nd inner frame 122 are extended and disposed in the vertical direction, and the 1-3rd inner frame 123 and the 1-4th inner frame 124 are It is extended and arranged in a horizontal direction.

The 1-1 inner frame 121 is disposed on the left side, is disposed opposite to the 1-1 outer frame 111, and can slide in the forward and backward directions with the 1-1 outer frame 111.

The 1-2 inner frame 122 is disposed on the right side, is disposed opposite to the 1-2 outer frame 112, and can slide in the forward and backward directions with the 1-2 outer frame 112.

The 1-3 inner frame 123 is disposed on the lower side, is disposed opposite to the 1-3 outer frame 113, and can slide in the front and rear directions with the 1-3 outer frame 113. The 1-3 inner frame 123 connects the lower sides of the 1-1 inner frame 121 and the 1-2 inner frame 122 .

The 1-4 inner frame 124 is disposed on the upper side, is disposed opposite to the 1-4 outer frame 114, and can slide in the front and rear directions with the 1-4 outer frame 114. The 1-4th inner frame 124 connects the upper sides of the 1-1st inner frame 121 and the 1-2nd inner frame 122 .

The glass 101 surrounded by the 1-1st inner frame 121, the 1-2nd inner frame 122, the 1-3rd inner frame 123 and the 1-4th inner frame 124 is further disposed. can Unlike the present embodiment, the first inner door 120 may be in a form in which glass is not disposed.

When a distinction is required, the glass of the first door 100 is referred to as the first glass 101, and the glass of the second door 200 is referred to as the second glass 201.

The 1-1 outer frame 111 and the 1-1 inner frame 121 are disposed to face each other, and the 1-1 outer frame 111 and the 1-1 inner frame 121 rotate in the front-back direction. It can slide.

In particular, while the 1-1st inner frame 121 is drawn forward, it may be located in front of the 1-1st outer frame 111 .

In addition, the 1-2 outer frame 112 and the 1-2 inner frame 122 are disposed to face each other, and the 1-2 outer frame 112 and the 1-2 inner frame 122 are front and rear It can slide in either direction.

In particular, while the 1-2nd inner frame 122 is drawn forward, it can be located in front of the 1-2nd outer frame 112, and in a state where it is drawn forward, the 1-2nd outer frame 112 can be rotated about

In this embodiment, the rail assembly 400 is disposed between the 1-2 outer frame 112 and the 1-2 inner frame 122 .

The rail assembly 400 is disposed between the first outer door 110 and the first inner door 120, and allows the first outer door 110 and the first inner door 120 to slide and rotate at the same time. can be implemented

The rail assembly 400 is coupled to the first outer door 110 and is coupled to the first rail 410 extending and extending in the front-back direction and the first inner door 120, and is disposed in the front-back direction. The second rail 420, which extends and is disposed along the first rail 410, and the second rail 420 and the first inner door 120 are hinged. The first rotation shaft 430 ).

The first rail 410 is fixed to the 1-2 outer frame 112 and is fixed to the 1-2 outer frame 112 .

The 1-2 outer frame 112 includes a first outer wall 112a to which the first rail 410 is fixed, and a second outer wall coupled to the first outer wall 112a and disposed on the outdoor side. (112b) and a third outer wall (112c) coupled to the first outer wall (112a), disposed indoors, and disposed opposite to the second outer wall (112b).

The 1-2 outer frame 112 further includes a support wall 112d disposed in line with the third outer wall 112c.

Rear ends of the first rail 410 and the second rail 420 may be supported by the support wall 112d, and the exposure of the first rail 410 and the second rail 420 to the inside is blocked. do.

In this embodiment, one side surface (left side surface, 413) of the first rail 410 is disposed facing the first inner door 120, and the other side surface (right side surface, 414) faces the first outer wall 112a. are placed

In addition, the support wall 112d blocks the separation of the first inner door 120 to the indoor side.

Meanwhile, the first and second inner frames 122 include a first inner wall 122a to which the second rail 420 is fixed, and a first inner wall 122a coupled to the first inner wall 122a and disposed facing the outdoor side. 2 includes an inner wall 122b and a third inner wall 122c coupled to the first inner wall 122a, disposed toward the indoor side, and disposed opposite to the second ㅇ inner wall 112b .

When the first inner door 120 is opened, the second inner wall 122b disposed toward the outdoor side is rotated toward the indoor side.

In addition, the third inner wall 122c disposed toward the indoor side rotates toward the outdoor side when the first inner door 120 is opened.

In this embodiment, one side surface (left side surface, 423) of the second rail 420 is disposed facing the first inner wall 122a, and the other side surface (right side surface, 424) is disposed facing the first rail 410. do.

The second rail 420 may slide in a forward and backward direction along the first rail 410 . In this embodiment, the second rail 420 slides while being inserted into the first rail 410 .

The second rail 420 is disposed between the first rail 410 and the 1-2 inner frame 122 .

The rear end 422 of the second rail 420 interlocks with the front end 411 of the first rail 410, through which the first inner door 120 connects to the first outer door 110. prevent complete separation from That is, when viewed from a plane, at least a portion of the first rail 410 and the second rail 420 always maintain an overlapping state.

In this embodiment, in the first outer door 110, the entire first inner door 120 is pushed and moved in the outdoor direction, and the first rail 410 and the second rail 420 are the first inner door ( 410) guides the slide movement.

Meanwhile, the second rail 420 is coupled to the 1-2nd inner frame 122 through the first rotation shaft 430 . The first inner door 120 including the 1-2 inner frames 122 may be rotated about the first rotation axis 430 .

The first rotating shaft 430 may be disposed on the upper and lower sides of the first inner door 120, respectively, and in this case, the rotation bracket 440 is also disposed protruding from the upper and lower sides of the first inner door 120, respectively. do. In addition, the first rail 410 and the second rail 420 may also be disposed on the upper and lower sides, respectively.

When a distinction is required, the first rotational shaft 430 disposed on the upper side is referred to as a first upper rotational shaft, and the first rotational shaft 430 disposed on the lower side is referred to as a first lower rotational shaft. In addition, the rotation bracket 440 disposed on the upper side is referred to as a first upper rotation bracket, and the rotation bracket 440 disposed on the lower side is referred to as a first lower rotation bracket.

In addition, the first rail 410 disposed on the upper side is referred to as a first upper rail, the first rail 410 disposed on the lower side is referred to as a first lower rail, and the second rail 420 disposed on the upper side is referred to as a first rail. 2 is referred to as an upper rail, and the second rail 420 disposed on the lower side is referred to as a second lower rail.

A rotation bracket 440 protruding from the 1-2 inner frame 122 toward the second rail 420 may be further disposed, and the first rotation shaft 430 is rotatable with the rotation bracket 440. are assembled

The first rotation shaft 430 is disposed at the front end 421 of the second rail 420 .

The first inner door 120 is disposed to rotate from indoor to outdoor, and in this embodiment, the rotation bracket 440 is disposed at the front end side of the first-second inner frame 122 .

Since the first rotating shaft 430 and the rotating bracket 440 are installed so that the first inner door 120 opens toward the outdoors, in the event of a fire, people inside the building pass through the first inner door 120 that opens toward the outside. You can easily evacuate to the outside.

Since the rotation bracket 440 is disposed at the front end of the 1-2 inner frame 122, interference with the second rail 420 can be minimized when the first inner door 120 rotates. .

In this embodiment, when the rear end 422 of the second rail 420 and the front end 411 of the first rail 410 are interlocked, the outer end in the radial direction of the first inner door 120 ( 129, the left rear end in this embodiment) does not form mutual engagement with the 1-1 outer frame 111.

When the first inner door 120 is not sufficiently drawn out, the outer end 129 of the 1-1 inner frame 121 interlocks with the right side of the 1-1 outer frame 111, The first inner door 120 cannot be rotated.

That is, only after the first inner door 120 is sufficiently drawn forward, the opposite end of the first rotating shaft 430 forms mutual engagement with the 1-1st outer frame 111 of the first outer door 110. I never do that. Through this structure, it is possible to prevent the first inner door 120 from being opened unintentionally.

In this embodiment, a first insertion groove 331 into which the 1-1 outer frame 111 is inserted is formed in the first side frame 330, and the first insertion groove 331 extends vertically in a long direction. to be formed

In this embodiment, when the first door 100 is closed, the entire 1-1 outer frame 111 is inserted into the first insertion groove 331 and is concealed.

Since the entire 1-1 outer frame 111 is concealed in the 1st insertion groove 331, when escaping from the room, an act of pushing the 1-1 outer frame 111 toward the outdoors by a person inside the room is prevented. It can be completely blocked.

In the event of a fire, since the evacuee is in an anomie state in which it is difficult to rationally judge the surrounding situation, it is possible to prevent the situation in which the first inner door 120 is not opened by pushing the 1-1 outer frame 111.

The second door 200 may slide in the left and right directions from the rear side of the first door 100 .

The second door 200 may be formed in the form of a square frame 210 when viewed from the front. In the second door 200, a glass 201 may be further disposed inside the square frame.

The square frame 210 includes the 2-1st door frame 211 and the 2-2nd door frame 212 extending and extending in the vertical direction, and the 2-3rd door frame extending and disposing in the horizontal direction. 213 and the 2-4 door frame 214.

The 2-1 door frame 211 is disposed on the left side, the 2-2 door frame 212 is disposed on the right side, the 2-3 door frame 213 is disposed on the upper side, and the 2-4 door frame 213 is disposed on the upper side. A frame 214 is disposed on the lower side.

The 2-3 door frame 213 connects the upper sides of the 2-1 door frame 211 and the 2-2 door frame 212, and the 2-4 door frame 214 connects the upper sides of the 2-1 door frame 211 and the 2-2 door frame 214. The lower sides of the 1 door frame 211 and the 2-2 door frame 212 are connected.

The width W1 of the 2-1st door frame 211 is larger than the width W2 of the 1-2nd outer frame 112 and the width W3 of the 1-2nd inner frame 122 .

When the first door 100 and the second door 200 completely close the entrance 305, the 2-1st door frame 211 connects the 1-2nd outer frame 112 and the 1-2nd outer frame 112. 2 is disposed at the rear of the inner frame 122 and completely covers the rear surfaces of the 1-2 outer frame 112 and the 1-2 inner frame 122 .

That is, when the first door 100 and the second door 200 completely close the entrance 305, the 1-2 outer frame 112 and the 1-2 outer frame 112 by the 2-1 door frame 211 -2 Blocks the inner frame 122 from being exposed to the indoor side.

Through this structure, it is possible to prevent a person inside the room from directly applying force to the 1-2 inner frame 122 and to prevent the first inner door 120 from being unintentionally drawn forward.

A push bar 140 may be further disposed on the rear surface of the first inner door 120, and “Push in case of fire” may be displayed on the push bar 140.

The push bar 140 is disposed behind the first glass 101 .

The push bar 140 is coupled to the first inner door 120 and is disposed inside the first inner door 120 . Specifically, the push bar 140 is disposed in the middle of the 1-3 inner frame 123 and the 1-4 inner frame 124, and the left end is coupled to the 1-1 inner frame 121, , The right end is coupled to the 1-2 inner frame 122.

By disposing the push bar 140 behind the first glass 101, it is possible to prevent a person from directly pushing the first glass 101 when escaping.

The push bar 140 transmits the user's force to the first inner door 120 so that the first inner door 120 can be easily pushed and withdrawn outdoors.

7 is a plan view of an automatic fire prevention door according to a second embodiment of the present invention, FIG. 8 is a partial enlarged view of FIG. 7 , and FIG. 9 is an exemplary operation view of FIG. 8 .

The fireproof automatic door according to the present embodiment further includes a door stopper 600 to block the first inner door 120 from being opened unintentionally, and the door stopper 600 is released only in case of fire to prevent the first inner door 120 from opening unintentionally. The door 120 may be opened.

The door stopper 600 limits forward withdrawal of the first inner door 120 .

The door stopper 600 is disposed in front of the first inner door 120 and is disposed within a rotation radius of the first inner door 120 .

In this embodiment, the door stopper 600 is disposed in front of the first side frame 330 .

The door stopper 600 includes a stopper body 610 rotatably disposed on the first outer door 110 (the first side frame 330 in this embodiment), and the first outer door 110, in this embodiment In an example, a locker 620 disposed on the first side frame 330 and a detection device 601 disposed on the first outer door 110 are included.

The detection device 601 may be interlocked with a fire alarm system of a building.

When a fire signal is input from one of each floor of a building, the detection device 601 can detect it and operate the locker 620 .

The locker 620 may further include a dead bolt 630 protruding in a horizontal direction.

A first through hole 311 through which the dead bolt 630 passes is formed in the first side frame 330, and a second through hole 311 is formed in the stopper body 610 opposite to the first through hole 311. A through hole 611 is formed.

The dead bolt 630 may be inserted into the first through hole 311 and the second through hole 311 and may be slid in a horizontal direction by the locker 620 .

In normal times, the dead bolt 630 is maintained while penetrating the first through hole 311 and the second through hole 311 to suppress rotation of the stopper body 610, and through this, the first inner The forward withdrawal of the door 120 is suppressed.

In case of fire, the locker 620 retracts the dead bolt 630, the dead bolt 630 is separated from the second through hole 611, and the stopper body 610 is changed to a rotatable state. can

The stopper body 610 may have a rotating shaft 615 disposed at the left front end and rotated through the rotating shaft 615 . That is, the stopper body 610 may be rotated forward by the force of pushing the first inner door 120 forward.

The rotation direction of the stopper body 610 and the rotation direction of the first inner door 120 are opposite to each other. Since the stopper body 610 and the first inner door 120 are rotated in opposite directions, interlocking during rotation can be prevented in advance.

On the other hand, the boundary (B) of the stopper body 610 and the first side frame 330 is arranged in line with the boundary (B) of the first inner door 120 and the first outer door 110, the A dead bolt 630 is disposed to pass through the boundary B to form mutual engagement with the stopper body 610 .

Since only a part of the short side of the dead bolt 620 is inserted into the stopper body 610, when a strong force is applied, interlocking by the dead bolt 620 can be released.

This is to enable the first inner door 120 to be opened even when the fire alarm system or the detection device 601 malfunctions or does not operate. To this end, only a part of the short side of the dead bolt 620 is inserted into the thickness of the boundary (B) side of the stopper body 610 and positioned.

So, even if the locker 620 does not release the death bolt 630, when the user pushes the push bar 140 with strong force, the stopper body 610 is deformed or rotated, and mutual contact with the dead bolt 630 occurs. The jamming can be released, and through this, the first inner door 120 can be opened.

Since the rest of the configuration is similar to that of the first embodiment, a detailed description thereof will be omitted.

Those skilled in the art to which the present invention pertains will understand that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The scope of the present invention is indicated by the claims to be described later rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts thereof are included in the scope of the present invention. should be interpreted

100: first door 110: first outer door
120: first inner door 140: push bar
200: second door 210: square frame
300: outer structure 400: rail assembly
410: first rail 420: second rail
430: first rotation shaft 440: rotation bracket
500: driving device 600: door stopper
610: stopper body 620: locker
630: dead bolt

Claims (1)

A first door 100 fixed to a building, disposed inside an outer structure 300 having an entrance 305 formed therein so that people can pass therethrough, and assembled to be slidably movable in the left and right directions;
a second door 200 disposed inside the outer structure 300 and assembled to slide in the left and right directions;
A driving device 500 disposed on the outer structure 300 and sliding and moving the first door 100 or the second door 200; includes,
The first door 100,
a first outer door 110;
a first inner door 120 disposed inside the first outer door 110;
A rail assembly 400 disposed between the first outer door 110 and the first inner door 120 and guiding the sliding movement of the first inner door 120; includes,
The rail assembly is arranged so that the first inner door 120 is drawn forward,
The rail assembly 400,
a first rail 410 that is coupled to the first outer door 110 and extends long in the front-rear direction;
a second rail 420 coupled to the first inner door 120, extending and extending in the front-rear direction, and moving along the first rail 410;
A fireproof automatic door including a first rotary shaft 430 hinged to the second rail 420 and the first inner door 120.

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