KR102336573B1 - Automatic door for fire evacuation - Google Patents

Abstract

The present invention relates to an automatic door for fire evacuation, comprising: a first door (100) fixed on a building and placed on an inner side of an outer structure (300) with an entrance (305) on an inner side so that people can pass therethrough, and slidably assembled in a transversal direction; a second door (200) placed on an inner side of the outer structure (300), and slidably assembled in a transversal direction; and a driving apparatus (500) placed on the outer structure (300), and sliding and moving the first door (100) or the second door (200). The first door (100) includes: a first outer door (110); a first inner door (120) placed on an inner side of the first outer door (110); and a rail assembly (400) placed between the first outer door (110) and the first inner door (120), and guiding the sliding motion of the first inner door (120). The rail assembly is placed to draw the first inner door (120) toward the front side. The present invention is able to place the first inner door on the first door, which is placed to be slidable in a transversal direction, so that the first inner door can be slid and rotated toward the outdoors, and people can evacuate to the outside through the first inner door in case of fire.

Description

Automatic door for fire evacuation

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

In general, an unmanned security system for maximizing user convenience and cost reduction is installed in various buildings used for residential, hospital, and office purposes, and the installation of an automatic door system that selectively opens and closes is increasing.

Most of the automatic doors installed as the automatic door system are sliding-type automatic doors, and the sliding-type automatic door is formed of an opening and closing door sliding in the left and right direction and a fixed door fixed at a predetermined position.

Specifically, in a state in which the opening and closing door and the fixed door are installed in parallel along the same direction, when an occupant is detected, 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 It works in a losing way.

Meanwhile, in general, the automatic door detects an occupant through a sensor and controls the opening/closing operation, and the opening/closing operation is performed by electric power and a motor operated thereby.

However, when a fire occurs inside a building, the door frame bends into the space inside the automatic door due to combustion of air. There is a problem that

In addition, high-temperature smoke generated from fire is a toxic gas with a low oxygen content and high carbon monoxide content, causing direct damage to the human body, blurring the evacuees' vision and causing psychological anxiety. There is a problem in that smoke spreads throughout the building through the space between the door frames.

Republic of Korea Patent 10-2218063 Republic of Korea Patent Publication 10-2010-0094084 Republic of Korea Patent Registration 10-1023229 Republic of Korea Patent 10-1493000 20-0425620 for Republic of Korea Registration Office Republic of Korea public utility model 20-2010-0009291

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

The present invention is fixed to a building, disposed inside the outer structure 300 having a doorway 305 formed therein so that a person can pass, and a first door 100 that is assembled to be slidable in the left and right direction; a second door 200 disposed inside the outer structure 300 and assembled to be slidably movable in the left and right directions; and a driving device 500 disposed on the outer structure 300 and slidingly 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; and 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; The first inner door 120 provides an automatic fire prevention door arranged to be drawn out to the front.

The outer door 110 includes the 1-1 outer frame 111 and the 1-2 outer frame 112 disposed to face each other in the left and right directions, and the 1-3 first 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, wherein the 1-1 outer frame 111 and the 1-2 outer frame 112 are arranged to extend in a vertical direction, and the The 1-3 th outer frame 113 and the 1-4 th outer frame 114 may be arranged 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. It includes a 1-3 inner frame 123 and a 1-4 inner frame 124, wherein the 1-1 inner frame 121 and the 1-2 inner frame 122 are arranged to extend in a vertical direction. and the 1-3 th inner frame 123 and the 1-4 th inner frame 124 may be arranged to extend in a horizontal direction.

The rail assembly 400 includes: a first rail 410 coupled to the first outer door 110 and arranged to extend in the front-rear direction; a second rail 420 coupled to the first inner door 120, disposed to extend in the front-rear direction, and moved along the first rail 410; The second rail 420 and the first inner door 120 may include a first rotation shaft 430 hinged.

The first rotation shaft 430 hinges the first and second inner frames 122 and the second rail 420 , and the first inner door 120 moves forward with respect to the first rotation shaft 430 . can be rotated to

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

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

Third, according to the present invention, since the end opposite to the first rotation shaft does not form a mutual engagement with the 1-1 outer frame of the first outer door only after the first inner door is sufficiently drawn forward, the first inner door There is an advantage in that it can be prevented from being opened unintentionally.

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. There is an advantage that both sides of the first inner door can be moved uniformly.

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

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

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail 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 allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout.

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

The automatic fire prevention door according to this embodiment is fixed to a building, and the outer structure 300 has an entrance 305 formed therein so that a person can pass, and it is disposed inside the outer structure 300, and slides in the left and right direction. The first door 100 is movably assembled, the second door 200 is disposed inside the outer structure 300, and the second door 200 is slidably assembled in the left and right direction, and the outer structure 300 is disposed and a driving device 500 for slidingly moving the first door 100 or the second door 200 .

Since the configuration of the driving device 500 is a general technique 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 front-rear direction when it is impossible to slide in the left-right direction.

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 side).

In this embodiment, the doorway 305 is opened through the second door 200 and the first door 100 can be maintained in a fixed state, and the first door can be evacuated only when a fire occurs. (100) can be used for emergency evacuation to the outside.

Unlike the present embodiment, both normal entry and emergency evacuation may be performed through the first door 100 .

The outer structure 300 includes a lower frame 310 fixed to the floor 1 of a building, a lower frame 310 spaced apart from the lower frame 310 and disposed on the upper side, and a frame 320 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 be entered and exited in the front-rear direction is formed inside, and at least one of the first door 100 or the second door 200 can open and close the entrance 305 have.

The entrance 305 is opened in the front-rear direction, 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 to be surrounded by the lower frame 310 , the aframe 320 , the first side frame 330 , and the fourth side frame 340 .

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

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

At least a portion of the first door 100 and the second door 200 overlaps in the front-rear direction. The entire first door 100 and the second door 200 may be disposed to overlap in the front-rear direction, and in this case, half of the doorway 305 is opened.

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 The rail assembly 400 is disposed between the inner doors 120 and guides the sliding movement of the first inner door 120 .

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

In addition, after the first inner door 120 is drawn forward from the first outer door 110 , it may be rotated about a first rotation shaft 430 on one side. The first outer door 110 provides a frame in which the first inner door 120 can slide and rotate.

The first outer door 110 is disposed to face the outer structure 300 and is 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 arranged to extend long in the vertical direction, and the 1-3 outer frame 113 and the 1-4 outer frame 114 are It is arranged to extend long in the horizontal direction.

In the present embodiment, the 1-1 outer frame 111 is disposed on the left side, is disposed to face the first 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 to face the second side frame 340 .

The 1-3 th outer frame 113 connects the lower sides of the 1-1 th outer frame 111 and the 1-2 th outer frame 112 , and is disposed above the lower frame 310 .

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

The 1-4th outer frame 114 is disposed below the upper frame 320 and is disposed to face the upper frame 320 .

The 1-4 th outer frame 114 connects upper sides of the 1-1 th outer frame 111 and the 1-2 th outer frame 112 , and is disposed below the upper frame 320 .

In a state in which the first inner door 120 is installed, the first outer door 110 may move left and right along the first rail 301 , and support the load of the first inner door 120 . do.

The first inner door 120 includes the 1-1 inner frame 121, the 1-2 inner frame 122, the 1-3 inner frame 123, and the 1-4 inner frame 121 disposed to face each other. frame 124 .

The 1-1 inner frame 121 and the 1-2 inner frame 122 are arranged to extend long in the vertical direction, and the 1-3 inner frame 123 and the 1-4 inner frame 124 are It is arranged to extend long in the horizontal direction.

The 1-1 inner frame 121 is disposed on the left side, is disposed to face the 1-1 outer frame 111 , and may slide forward and backward with the 1-1 outer frame 111 .

The 1-2 inner frame 122 is disposed on the right side, is disposed to face the 1-2 outer frame 112 , and may slide forward and backward with the 1-2 outer frame 112 .

The 1-3 th inner frame 123 is disposed on the lower side, is disposed to face the 1-3 th outer frame 113 , and may slide forward and backward with the 1-3 th outer frame 113 . The 1-3 th inner frame 123 connects the lower sides of the 1-1 th inner frame 121 and the 1-2 th inner frame 122 .

The 1-4 th inner frame 124 is disposed on the upper side, is disposed to face the 1-4 th outer frame 114 , and may slide forward and backward with the 1-4 th outer frame 114 . The 1-4 th inner frame 124 connects upper sides of the 1-1 th inner frame 121 and the 1-2 th inner frame 122 .

The glass 101 surrounded by the 1-1 inner frame 121, the 1-2 inner frame 122, the 1-3 inner frame 123, and the 1-4 inner frame 124 is further disposed. can Unlike the present embodiment, a form in which no glass is disposed on the first inner door 120 may be used.

If classification is required, the glass of the first door 100 is referred to as a first glass 101 , and the glass of the second door 200 is referred to as a 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 move in the front-rear direction. It can be moved by slide.

In particular, as the 1-1th inner frame 121 is drawn forward, it may be positioned in front of the 1-1th 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. direction can be moved.

In particular, the 1-2 inner frame 122 may be positioned in front of the 1-2 outer frame 112 as it is drawn forward, and the 1-2 outer frame 112 is drawn forward in a state where it is drawn forward. 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 simultaneously slides and rotates the first outer door 110 and the first inner door 120. can be implemented

The rail assembly 400 is coupled to the first outer door 110, a first rail 410 that is arranged to extend long in the front-rear direction, is coupled to the first inner door 120, and is coupled to the front-rear direction. A second rail 420 that is disposed to extend long and moves along the first rail 410 , and a first rotation shaft 430 that hinges the second rail 420 and the first inner door 120 . ) is included.

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

The first 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. and a third outer wall 112c coupled to the first outer wall 112a and disposed on the indoor side and 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.

The rear ends of the first rail 410 and the second rail 420 may be supported by the support wall 112d, and the first rail 410 and the second rail 420 are blocked from being exposed to the indoor side. do.

In this embodiment, one side (left side, 413) of the first rail 410 is disposed to face the first inner door 120, and the other side (right side, 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.

On the other hand, the first and second inner frame 122 includes 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 outside. It includes a second inner wall (122b), coupled to the first inner wall (122a), arranged to face the indoor side, and a third inner wall (122c) arranged to face the second ㅇ inner wall (112b) .

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

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

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

The second rail 420 may slide forward and backward 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 first and second inner frames 122 .

The rear end 422 of the second rail 420 forms a mutual engagement with the front end 411 of the first rail 410, and through this, the first inner door 120 is connected to the first outer door 110. to prevent complete separation from That is, when viewed in a plan view, at least a portion of the first rail 410 and the second rail 420 always maintains an overlapping state.

In the present embodiment, the entire first inner door 120 is pushed and moved from the first outer door 110 to the outside, and the first rail 410 and the second rail 420 are connected to the first inner door ( 410) to guide the slide movement.

On the other hand, the second rail 420 is coupled to the first 1-2 inner frame 122 through the first rotation shaft (430). The first inner door 120 including the first and second inner frames 122 may be rotated about the first rotation shaft 430 .

The first rotation shaft 430 may be disposed above and below the first inner door 120 , respectively. In this case, the rotation bracket 440 is also disposed to protrude from the top and bottom 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 side and the lower side, respectively.

When classification 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 called a first upper rotation bracket, and the rotation bracket 440 disposed on the lower side is called 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 at the lower side is referred to as a first lower rail, and the second rail 420 disposed at the upper side is referred to as a second rail. The second upper rail is referred to as the second lower 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 first and second inner frame 122 toward the second rail 420 may be further disposed, and the first rotation shaft 430 may rotate with the rotation bracket 440 . is 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 be rotated from the inside to the outside, and in this embodiment, the rotation bracket 440 is disposed on the front end of the first and second inner frames 122 .

The first rotation shaft 430 and the rotation bracket 440 are installed so that the first inner door 120 is opened to the outside, so that people inside the building can open to the outside in case of a fire through the first inner door 120 that opens to the outside. You can easily evacuate to the outside.

Since the rotation bracket 440 is disposed at the front end of the first and second inner frames 122 , when the first inner door 120 is rotated, interference with the second rail 420 can be minimized. .

In this embodiment, when the rear end 422 of the second rail 420 forms a mutual engagement with the front end 411 of the first rail 410, the radially outer end ( 129 (left rear end in this embodiment) does not form a 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 forms a mutual engagement 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 end opposite to the first rotation shaft 430 forms a mutual engagement with the 1-1 outer frame 111 of the first outer door 110 . I never do that. Through such a structure, it is possible to prevent the first inner door 120 from being unintentionally opened.

In the present 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 long in the vertical direction. is formed

In the present embodiment, when the first door 100 is closed, the entire 1-1 outer frame 111 is inserted into the first insertion groove 331 to be hidden.

The entire 1-1 outer frame 111 is hidden in the first insertion groove 331 to prevent an indoor person from pushing the 1-1 outer frame 111 to the outdoors when escaping from the room. can be blocked at the source.

When a fire occurs, since the evacuator 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 in advance.

The second door 200 may slide in a left and right direction 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. The second door 200 may further have a glass 201 disposed inside the rectangular frame.

The rectangular frame 210 includes a 2-1 th door frame 211 and a 2-2 th door frame 212 arranged to extend long in the vertical direction, and a 2-3 th door frame arranged to extend long in the horizontal direction. 213 and a 2-4 door frame 214 .

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

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

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

When the first door 100 and the second door 200 completely close the doorway 305 , the 2-1 th door frame 211 forms the 1-2 outer frame 112 and the 1-th door frame 211 . It is disposed behind the second 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 doorway 305, the first 1-2 outer frame 112 and the first -2 Blocks the inner frame 122 from being exposed to the indoor side.

Through such a structure, it is possible to prevent an indoor person from directly applying a force to the first and second inner frames 122, and it is possible to prevent the first inner door 120 from being unintentionally drawn out forward.

A push bar 140 may be further disposed on the rear surface of the first inner door 120 , and “Please 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 on an indoor side of the first inner door 120 . Specifically, the push bar 140 is disposed in the middle between the 1-3 th inner frame 123 and the 1-4 th inner frame 124 , and the left end thereof is coupled to the 1-1 th inner frame 121 , and , the right end is coupled to the first 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 may transmit a user's force to the first inner door 120 to easily push the first inner door 120 to the outside.

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

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

The door stopper 600 limits the front 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 (a 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 sensing 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 the building, the detection device 601 may detect it and operate the locker 620 .

The locker 620 may further include a dead bolt 630 protruding in the 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 at a position 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 the horizontal direction by the locker 620 .

Normally, the dead bolt 630 is maintained through the first through hole 311 and the second through hole 311 to suppress the rotation of the stopper body 610, and through this, the first inner The front 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 has a rotation shaft 615 disposed at the left front end, and may be rotated through the rotation shaft 615 . That is, the stopper body 610 may be rotated forward by the force 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 to each other, mutual jamming 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 a mutual engagement with the stopper body 610 .

Since only a part of one end of the dead bolt 620 is inserted into the stopper body 610 , when a strong force is applied, the mutual engagement by the dead bolt 620 may be released.

This is to allow 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 and positioned to the thickness of the boundary (B) side of the stopper body 610 .

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

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

Those of ordinary skill in the art to which the present invention pertains will understand that the present invention may be embodied in other specific forms without changing the technical spirit or essential features thereof. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims described below rather than the above detailed description, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts 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 (5)

A first door 100 fixed to a building, disposed inside the outer structure 300 having an entrance 305 on the inside so that a person can pass, and assembled to be slidable in the left and right directions;
a second door 200 disposed inside the outer structure 300 and assembled to be slidably movable in the left and right directions;
and a driving device 500 disposed on the outer structure 300 and slidingly moving the first door 100 or the second door 200;
The first door 100,
a first outer door 110;
a first inner door 120 disposed inside the first outer door 110;
and a rail assembly 400 disposed between the first outer door 110 and the first inner door 120 and guiding the forward and backward sliding movement of the first inner door 120;
The rail assembly 400 is arranged so that the first inner door 120 is drawn forward,
The outer door 110 includes a 1-1 outer frame 111 and a 1-2 outer frame 112 disposed to face each other in the left and right directions, and a 1-3 outer frame disposed to face each other in the vertical direction. It includes a frame 113 and a 1-4 outer frame 114,
The 1-1 outer frame 111 and the 1-2 outer frame 112 are arranged to extend long in the vertical direction, and the 1-3 outer frame 113 and the 1-4 outer frame 114 are disposed. is arranged to extend long in the horizontal direction,
The first inner door 120,
The 1-1 inner frame 121 and the 1-2 inner frame 122 are disposed to face each other in the left and right direction, and the 1-3 inner frame 123 and the second inner frame 122 are disposed to face each other in the vertical direction. 1-4 including an inner frame 124,
The 1-1 inner frame 121 and the 1-2 inner frame 122 are vertically extended and disposed, and the 1-3 inner frame 123 and the 1-4 inner frame 124 are disposed. is arranged to extend long in the horizontal direction,
The rail assembly 400,
a first rail 410 coupled to the first outer door 110 and arranged to extend in the front-rear direction; a second rail 420 coupled to the first inner door 120, disposed to extend in the front-rear direction, and moved along the first rail 410; and a first rotation shaft 430 hingedly coupling the second rail 420 and the first inner door 120 to each other.
delete delete delete The method according to claim 1,
The first rotation shaft 430 hinges the first and second inner frames 122 and the second rail 420 , and the first inner door 120 moves forward with respect to the first rotation shaft 430 . Fire protection automatic door that rotates with

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