KR101774830B1 - Buried double swing type fire door - Google Patents

Buried double swing type fire door Download PDF

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Publication number
KR101774830B1
KR101774830B1 KR1020150105407A KR20150105407A KR101774830B1 KR 101774830 B1 KR101774830 B1 KR 101774830B1 KR 1020150105407 A KR1020150105407 A KR 1020150105407A KR 20150105407 A KR20150105407 A KR 20150105407A KR 101774830 B1 KR101774830 B1 KR 101774830B1
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KR
South Korea
Prior art keywords
door
doors
pair
fire
passage
Prior art date
Application number
KR1020150105407A
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Korean (ko)
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KR20170012846A (en
Inventor
엄익철
왕남웅
강은수
Original Assignee
(주)벽두도어
사단법인 한국화재보험협회
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Priority to KR1020150105407A priority Critical patent/KR101774830B1/en
Publication of KR20170012846A publication Critical patent/KR20170012846A/en
Application granted granted Critical
Publication of KR101774830B1 publication Critical patent/KR101774830B1/en

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    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/164—Sealing arrangements between the door or window and its frame, e.g. intumescent seals specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/167—Devices blocking doors or windows inside its frame in case of fire
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
    • E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
    • E06B5/16—Fireproof doors or similar closures; Adaptations of fixed constructions therefor
    • E06B5/168—Shape of edges of wing and/or its frame specially adapted therefor
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
    • E06B7/00—Special arrangements or measures in connection with doors or windows
    • E06B7/16—Sealing arrangements on wings or parts co-operating with the wings

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a flush door for a flush type indoor and outdoor door, and more particularly, to a flush door for a flush type door that is normally embedded in a side wall of a passage and automatically closes the passage when a fire occurs. According to an embodiment of the present invention, a flush-type door fire door comprises: a door frame installed in the passage; The door is rotatably coupled to the door frame and is normally fixed to the side wall of the passage so that the passage is kept open. When a fire occurs, the door is automatically released and rotated by 90 or 180 degrees to close the passage A pair of doors; When a fire occurs, the pair of doors are fixed to the door frame when the pair of doors is released from the fixing and rotated, and when the pair of doors is fixed to the door frame, An opening / closing roller for opening / closing the pair of doors so as to be opened only when the door is opened; A fire safety pin fixing at least one of the doors of the pair of doors to the door frame by the heat generated by the fire in a state where the pair of doors is closed; And a latch for latching the pair of doors by the heat generated by the fire while the pair of doors is closed.

Description

{BURIED DOUBLE SWING TYPE FIRE DOOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a flush door for a flush type indoor and outdoor door, and more particularly, to a flush door for a flush type door that is normally embedded in a side wall of a passage and automatically closes the passage when a fire occurs.

Generally, a fire door is a fire prevention facility that plays a very important role in the protection of human life and property by preventing smoke and flame from spreading to the adjacent room in case of fire, and by keeping the closed state at all times, It is stipulated in the related law that it is automatically closed structure.

However, it is very inconvenient to install the fire doors so as to keep the doors closed at all times, such as the entrance of a building where people frequently enter and leave the building. Therefore, A flush-type fire door is installed to close the passageway.

In other words, the flush type fire door is normally opened to keep the passageway open so that people can enter and exit the fire door. However, when the fire occurs, the fire door automatically closes the passageway.

In this type of flush type fire door, two doors are respectively embedded in both sides of the passage, and in case of fire, two doors are automatically closed by an automatic closing device so as to close the passageway.

However, the conventional embedding type flap doors are often closed automatically by the automatic closing device in the event of a fire, but are not fixed to the door frame and are thus not opened to function as fire doors. For this purpose, A mannual flush bolt is installed at the upper portion and / or the lower portion of any one of the two doors so that one door is fixed to the door frame. However, it is practically difficult to manually fix the door to the door frame when a fire occurs, It is necessary to automatically fix the door to the door frame in place of the conventional passive flap bolt when a fire occurs.

In addition, the flush-type door openings differ from each other by 90 ° or 180 °, depending on the shape of the passage to be installed, such that the door embedded in one side wall of the passage is rotated in order to close the passage in case of fire, There is a problem in that the door and door frame must be structured differently depending on the angle of rotation of the door.

In addition, the flush-type hinged door should be opened when a person pushes it with a predetermined force so that people can evacuate at the beginning of the fire, but it is provided in the opposite space to prevent the smoke generated by the fire from entering the opposite space based on the fire door It needs to be installed so as not to be opened by wind pressure. That is, the flush-type doors and doors must be opened by a force of a predetermined pressure or more at the initial stage of fire occurrence, and should not be opened below a predetermined pressure.

In addition, when the flame is adjacent to the fire door after the initial stage of the fire, the flame pressure is further increased. Therefore, when the flame is adjacent to the fire door after the initial fire occurrence, In order to do this, it is necessary to install the flame so as not to be opened even by the stronger pressure than the initial when the flame is adjacent to the fire door after the beginning of the fire.

Korean Patent Publication No. 10-2007-0056722 (published on June 4, 2007)

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and it is an object of the present invention to provide an air conditioner which can be used in both cases where a door is rotated at 90 ° or 180 ° to close a passageway when a fire occurs, The present invention provides a flush-type door with a flush-type door with a structure capable of minimizing a fever type of a door.

Further, the present invention provides a flush-type hinged door capable of automatically locking the door to the door frame when the passage is closed in the event of a fire.

In addition, the present invention provides a flush door of a flush type in which a door is opened only when a force of a predetermined pressure or more acts at an initial stage of a fire, and is not opened even by a higher pressure when the flame is adjacent to the flush door.

According to an embodiment of the present invention, a flush-type door fire door comprises: a door frame installed in the passage; The door is rotatably coupled to the door frame and is normally fixed to the side wall of the passage so that the passage is kept open. When a fire occurs, the door is automatically released and rotated by 90 or 180 degrees to close the passage A pair of doors; When a fire occurs, the pair of doors are fixed to the door frame when the pair of doors is released from the fixing and rotated, and when the pair of doors is fixed to the door frame, An opening / closing roller for opening / closing the pair of doors so as to be opened only when the door is opened; A fire safety pin fixing at least one of the doors of the pair of doors to the door frame by the heat generated by the fire in a state where the pair of doors is closed; And a latch for latching the pair of doors by the heat generated by the fire while the pair of doors is closed.

Further, the flush-type door flap according to an embodiment of the present invention includes: a door frame including a side door frame installed on a side of the passage; And is rotatably coupled to the door frame, and is normally fixed to the side wall of the passage so as to maintain the opened state, and when a fire occurs, the lock is automatically released and rotated 90 or 180 degrees, Wherein the side door frame comprises a body installed on the opposite side of the space in which the door rotates with respect to the door, an extension extending from one side of the body to the space, Wherein the door is rotated by 90 ° or 180 ° to close the passage when the door is closed and the door is rotated to the inside of the door so as to engage with the door, And a protrusion projecting sideways from the door.

Further, the flush-type door flap according to an embodiment of the present invention includes: a door frame installed in the passage; The door is rotatably coupled to the door frame and is normally fixed to the side wall of the passage so that the passage is kept open. When a fire occurs, the door is automatically released and rotated by 90 or 180 degrees to close the passage A pair of doors; And a pair of doors to be fixed to the door frame when the pair of doors are fixed and released when the fire occurs, and when the pair of doors are fixed to the door frame, And the opening / closing roller opens and closes the pair of doors so that the door is opened only when the door is opened, and the opening and closing roller includes a roller provided on any one of the door frame and the door, Wherein the locking portion includes a locking member having a rolling portion that is rolled on the roller at an end thereof, and an elastic member that provides an elastic force to the locking member.

Further, the flush-type door flap according to an embodiment of the present invention includes: a door frame installed in the passage; The door is rotatably coupled to the door frame and is normally fixed to the side wall of the passage so that the passage is kept open. When a fire occurs, the door is automatically released and rotated by 90 or 180 degrees to close the passage A pair of doors; And a fire safety pin for fixing at least one of the doors of the pair of doors to the door frame by heat generated by a fire in a state in which the door is closed by the pair of doors, An elastic member for providing an elastic force to the fire-fighting pin, and a blocking plate for blocking the protrusion of the fire-fighting pin and normally melting the fire-fighting pin when the fire is generated.

Further, the flush-type door flap according to an embodiment of the present invention includes: a door frame installed in the passage; The door is rotatably coupled to the door frame and is normally fixed to the side wall of the passage so that the passage is kept open. When a fire occurs, the door is automatically released and rotated by 90 or 180 degrees to close the passage A pair of doors; And a latch portion for latching the pair of doors by heat generated by a fire in a state that the pair of doors is closed, wherein the latch portion includes a latch portion And a protrusion provided on a side of the other one of the pair of doors so as to be inflated by the heat generated when a fire occurs and inserted and caught in the groove.

The flush-type hinged door according to an embodiment of the present invention having the above-described structure can be used in both cases where the angle of rotation of the door for closing the passage at the time of fire is 90 ° or 180 °, The airtightness can be maintained, and the fever type of the door can be minimized.

In addition, the flush-type door flap according to the embodiment of the present invention has an effect that the door can be automatically fixed to the door frame when the passage is closed at the time of fire occurrence.

In addition, since the flap door of the embedding type according to the embodiment of the present invention can be opened only when a force of a predetermined pressure or more acts at the beginning of a fire, it is easy to evacuate people at the beginning of the fire, There is an effect that smoke can be prevented from flowing into the opposite space.

Further, since the fire safety pin, which prevents thermal deformation of the door when a fire occurs, operates only when the flame is adjacent to the fire door since the beginning of the fire, the flush doors of the flush type door openings according to the embodiment of the present invention, There is an effect that it can be facilitated.

Further, when the flame is adjacent to the fire door after the start of the fire, the pair of doors may be automatically interlocked with each other so that the door can be more firmly fixed to the door frame In addition, there is an effect of minimizing thermal deformation of the door.

The effects according to the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims and the detailed description It will be possible.

FIG. 1 is a horizontal cross-sectional view schematically showing a state in which a flap door is closed according to an embodiment of the present invention. FIG. 1 is a perspective view of a flap door according to an embodiment of the present invention, 1 is a horizontal sectional view schematically showing an example,
FIG. 2 is a schematic front view of a flush-type door flap according to an embodiment of the present invention in a closed state; FIG.
FIG. 3 is a horizontal sectional view schematically showing an example in which the door of the embedding type fire door according to FIG. 1 is installed at a position where the door can be closed by 90 ° rotation,
4 is an enlarged view of a portion 'A' in FIG. 1,
5 is an enlarged view of a portion 'B' in FIG.
6 is a schematic view for explaining a configuration of an opening and closing roller according to an embodiment of the present invention,
7 is a schematic view for explaining the construction of a fire safety pin according to an embodiment of the present invention,
FIG. 8 is an enlarged view of portion C 'of FIG. 1, illustrating a configuration of a latch portion according to an embodiment of the present invention.

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

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. Rather, the intention is not to limit the invention to the particular forms disclosed, but rather, the invention includes all modifications, equivalents and substitutions that are consistent with the spirit of the invention as defined by the claims.

Relative terms such as 'upper', 'lower', 'side', 'left', 'right' and the like in the present specification can be used to describe the relation between the structures on the basis of the directions shown in the drawings, The invention is not limited by such terms. Also, in the accompanying drawings, thickness and size may be exaggerated for clarity of description, and the present invention is not limited by the relative size or thickness shown in the accompanying drawings.

FIG. 1 is a horizontal sectional view schematically showing a state in which a flap door is closed according to an embodiment of the present invention. FIG. 2 is a cross-sectional view showing a state in which the flap door is closed Fig.

Referring to FIGS. 1 and 2, the flap door 10 according to an embodiment of the present invention (hereinafter, referred to as a "buried fire door") maintains a state in which the passageway 11 is normally open, A door frame 20 installed in the passage 11, a pair of doors 30 rotatably engaged with the door frame 20, an opening and closing roller 40, A fire safety pin 50, and a latch portion 60. [

The door frame 20 includes an upper door frame 21 provided on the ceiling of the passage 11, a side door frame 22 provided on the side wall of the passage 11, and a lower door frame 23 provided on the bottom of the passage 11 .

The pair of doors 30 are fixedly installed in a state of being embedded in the side wall 12 of the passage 11 so as to maintain the opened state of the passage 11, (11) is closed.

The unlocking of the pair of doors 30 in the event of a fire can be implemented by an automatic closing device. For example, the pair of doors 30 are attached and fixed to the side wall 12 by electromagnetic force in a state of being engaged with the door frame 20 so as to be automatically rotatable in the direction of closing the passageway 11 When a fire is detected by a smoke detector or the like, power is shut off and the fixing is automatically released, thereby closing the passage 11. [ However, since the configuration of the automatic closing device corresponds to a well-known technology in the technical field of the present invention, a detailed description thereof will be omitted, and the present invention is not limited to the specific configuration of the automatic closing device.

The opening and closing roller 40 allows the door 30 to be automatically fixed to the door frame 20 when the door 30 is unlocked and closes the passage 11. After the door 30 is fixed, The door is opened and closed so that the door 30 is opened only when the door 30 is operated.

That is, when the fire is generated, the open / close roller 40 moves the pair of doors 30 to the upper door frame 21 or the lower door frame 21, And when the pair of doors 30 is fixed to the upper or lower door frame 21 or 23, the door is opened or closed so that the door is opened only when a force greater than a predetermined force is applied.

The flushing door 10 according to the present invention is a fire door installed to close the passage 11 only when a fire occurs. The opening and closing roller 40 allows people to escape at the beginning of a fire, 10, the door 30 is opened or closed only when a force of a predetermined force or more acts to block the entrance of the door 30 into the opposite space.

Generally, when a fire occurs, a predetermined wind pressure is provided in the opposite space to prevent the smoke generated due to the fire from flowing into the opposite space based on the fire door 10. The flame-proof door 10 according to the present invention, Is opened by the pushing force of a person and at the same time, it is not opened by the wind pressure, so that evacuation of people can be facilitated in the early stage of the fire, and at the same time, It is possible to block the inflow into the space. For example, the opening and closing roller 40 can be opened and closed only when a force of about 14.5 kg is applied so that the child can open the door 30 by himself, but not by the wind pressure. The specific configuration of the opening and closing roller 40 will be described later.

The fire safety pin 50 may further securely fix the door 30 to the door frame 20 when the flame is adjacent to the door 10 after the beginning of the fire so as to prevent the flame from spreading to the opposite space of the door 10 At least one of the door openings of the pair of door openings is connected to the upper door frame 21 or the lower door frame 23 by the heat generated by the fire in a state where the pair of door openings 30 are closed with the passage 11. [ Thereby fixing the door 30 more firmly.

In the flame-proof door 10 according to the present invention, the door 30 is opened and closed by the opening and closing roller 40 at the beginning of a fire. When the flame is adjacent to the fire door 10 after the beginning of the fire, Since the door 30 can be opened by the roller 40 and thermal deformation of the door 30 due to the adjacent flame can occur severely, It is necessary to prevent the door 30 from being opened by the pressure of the flame to prevent the fire from spreading to the adjacent area and to prevent the door 30 from being thermally deformed. The fire safety pin 50 is constructed such that only one door 30 is automatically inserted into the door frame 10 when the flame is adjacent to the fire door 10 after the start of the fire 20) It is a lock. In this way, when the fire safety pin 50 is operated automatically only when the flame is adjacent to the fire after the start of the fire, people can be evacuated easily in the early stage of the fire.

The fire safety pin of the conventional flush type fire door is formed in the form of a passive flush bolt so that any one of the pair of doors is fixed to the door frame from the beginning of the fire. When one of the doors is fixed to the door frame, people can not escape because it is possible to evacuate to the other door of a pair of doors.

On the other hand, since the fire safety pin 50 of the flame-proof door 10 according to the present invention operates automatically only when the flame is adjacent to the fire door 10 after the beginning of the fire, It is possible to evacuate using all of the pair of doors 30, thus making it easier to evacuate. The concrete construction of the fire safety pin 50 will be described later.

The latch portion 60 prevents the pair of doors 30 from being opened even when the flame is adjacent to the fire door 10 and the pressure of the flame is further increased after the start of the fire so as to prevent the fire from spreading to the adjacent area In addition, as a configuration for minimizing thermal deformation of the door 30 due to the further raised flame, a pair of doors 30 are automatically closed by the heat generated by the fire with the passage 11 closed, So that the door 30 is not opened and the door 30 is prevented from being thermally deformed.

The conventional fire door has a configuration of a latch bolt in which a handle is provided on the door so that the pair of doors is released from engagement with the door by rotating the handle, whereas the flame-proof door 10 according to an embodiment of the present invention has a conventional fire door The configuration of the latch portion 60 is used instead of the configuration of the latch bolt.

The latch portion 60 allows the door 30 to be opened and closed as the door 30 is pushed or pulled without engaging the pair of doors 30 at the initial stage of the fire, The pair of doors 30 are automatically engaged with each other as the door 30 is thermally expanded due to the heat generated by the adjacent flame when the door 30 is adjacent to the door 10 so as to prevent the pair of doors 30 from being opened, Thereby minimizing thermal deformation of the door 30. The specific configuration of the latch portion 60 will be described later.

In the meantime, the embedding type fire door 10 according to the embodiment of the present invention is configured such that when a pair of doors 30 are coupled to the door frame 20 so as to be rotatable by 90 or 180 degrees, and furthermore, the passageway 11 is closed The coupling structure of the door frame 20 and the door 30 has such a structure that airtightness can be maintained without generating a gap between the door 30 and the door frame 20.

1 is a horizontal cross-sectional view schematically showing an example in which a door of the embossed fire door according to the present invention is installed at a position where the door can be closed when the door is rotated by 180 DEG. Fig. 3 is a cross- Fig. 2 is a horizontal cross-sectional view schematically showing an example in which the cover is closed.

As shown in FIGS. 1 and 3, the embedding type fire door 10 according to the present invention can be rotated 90 or 180 degrees to close the passage 11 according to the shape of the passage 11 to be closed.

For example, as shown in FIG. 1, when the embedding type fire door 10 according to the present invention is installed in the 'T' shaped passage 11, the pair of doors 30 normally have the passage 11 And it must be rotated by about 180 ° in order to close the 'T' shaped passage 11 when a fire occurs.

3, when the embedding type fire door 10 according to the present invention is installed in the straight passage 13, the pair of doors 30 are normally embedded in the side wall 14 And it is only necessary to rotate it by about 90 degrees in order to close the straight passage 13 when a fire occurs.

As described above, the embedding type fire door 10 according to the present invention is constructed so as to close the passages 11 and 13 in a state in which the pair of doors 30 are fixedly embedded in the side walls 12 and 14 of the passages 11 and 13 The angle to be rotated is approximately 90 ° or 180 °, depending on the type of passageway 11,13 installed.

When the door 30 of the embedding type fire door 10 according to the present invention closes the passages 11 and 13, airtightness must be maintained without generating a gap between the door frame 20 and the door 30 do. To this end, the conventional embedded type fire door is made to have a different structure of coupling between the door frame and the door according to the rotation angle of the door.

However, the combined structure of the door frame 20 and the door 30 of the embedding type fire door 10 according to an embodiment of the present invention has a single structure, and the rotation angle of the door 30 is 90 or 180 And the airtightness can be maintained without generating a gap between the door 30 and the door frame 20 when the door 11 is closed. Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 4 is an enlarged view of a portion 'A' of FIG. 1, and FIG. 5 is an enlarged view of a portion 'B' of FIG.

4 and 5, the side door frame 22 includes a body 24 provided on the opposite side of the space 15 in which the door 30 rotates with respect to the door 30, And an engaging portion 27 bent in the direction of the door 30 from the end portion of the extending portion 25. [

The door 30 may include a projection 34 projecting sideways of the door 30 so as to be caught by the engagement portion 27 when the passages 11 and 13 are closed.

The protrusion 34 of the door 30 rotates inward of the locking portion 25 of the side door frame 22 as the door 30 is unlocked and rotates to close the passage 11 The protruding portion 34 is engaged with the latching portion 25 and is brought into a close contact state when the door 30 closes the passageways 11 and 13. Therefore, a gap is formed between the door 30 and the side door frame 22 So that the airtightness can be maintained.

Since the side door frame 22 is formed with the space 28 through which the projections 34 of the door 30 are rotated by the extended portions 25, the projections 34 of the door 30 are engaged with the side door frames 22 without interfering with each other.

4 and 5, if the side door frame 22 and the door 30 have the above-described structure, the rotation of the door 30 can be rotated by 90 or 180 degrees.

6 is a schematic view for explaining a configuration of an opening / closing roller according to an embodiment of the present invention. Hereinafter, a specific construction of the opening and closing roller according to an embodiment of the present invention will be described in detail with reference to FIG.

The opening and closing roller 40 according to an embodiment of the present invention includes a roller 41 installed on the upper door frame 21 or the lower door frame 23, a locking part 42 And the locking portion 42 includes a locking member 44 having a rolling portion 43 that rolls on the roller 41 at an end thereof and an elastic member 45 that provides an elastic force to the locking member 44 can do.

For example, when the roller 41 is installed in the upper door frame 21, the locking part 42 can be installed at the upper end of the door 30, and the roller 41 is installed in the lower door frame 23 The locking portion 42 may be installed at the lower end of the door 30. The roller 41 may be provided on the door 30 and the locking portion 42 may be provided on the door frame 20 and the present invention is not limited thereto. The rolling portion 43 may be formed in the shape of an inclined surface or may be rounded to smoothly roll on the roller 41, but the present invention is not limited thereto.

The door 30 is rotated in a direction in which the rolling section 43 is rotated by the roller (not shown) when the door 30 is unfastened and rotates to close the passage 11 in the event of a fire, 41 and can be fixed to the upper door frame 21 or the lower door frame 23 while being caught by the roller 41 by the elastic member 45 after being rolled. And after the door 30 is fixed to the upper door frame 21 or the lower door frame 23, only when the force beyond the elastic force of the elastic member 45 acts, the rolling part 43 is moved in the opposite direction to the roller 41 The door 30 can be opened while being rolled. Here, the predetermined force for opening the door 30 can be adjusted according to the elasticity of the elastic member 45 and the degree of protrusion of the rolling portion 43.

7 is a schematic view for explaining the construction of a fire safety pin according to an embodiment of the present invention. Hereinafter, a specific configuration of a fire safety pin according to an embodiment of the present invention will be described in detail with reference to FIG.

The fire safety pin 50 according to an embodiment of the present invention includes a fireproof pin 51, an elastic member 52 that provides an elastic force to the fireproof pin 51, and a protrusion of the fireproof pin 51 And a blocking plate 53 for preventing the fire-fighting pin 51 from being melted by the generated heat when a fire occurs.

The fire safety pin 50 having the above configuration may be installed in any one of the door frame 20 and the door 30. When the fire safety pin 50 is installed in the door frame 20, the fire safety pin 50 may be mounted on the upper door frame 21 or the lower door frame 23 Can be installed.

Further, the blocking plate 53 may be made of a material that can be melted by heat, for example, plastic or rubber. In fact, when the fire-fighting test commissioned by the inventor of the present invention conducted the fire resistance test, the fireproof fin 51 melted after about 5 to 7 minutes, and the fire pin 51 then protruded through the blocking plate 53 by the elastic force of the elastic member 52 I could confirm.

According to the fire safety pin 50 having the above construction, the fire prevention pin 51 is normally blocked by the shutoff plate 53. When the fire door 50 is fixed to the door frame 20 when the fire is generated, The fireproof pin 51 penetrates the blocking plate 53 by the elastic force of the elastic member 52 and protrudes from the door frame 20 or the door 30 by the elastic force of the elastic member 52, The door 30 can be more firmly fixed to the door frame 20.

For example, when the fire safety pin 50 is installed on the upper door frame 21, when the blocking plate 53 melts and the fireproof pin 51 protrudes, the fireproof pin is hooked on the upper end of the door 30, (30) can be more firmly fixed to the door frame (20).

8 is an enlarged view of a portion 'C' in FIG. Hereinafter, a specific configuration of the latch unit 60 according to an embodiment of the present invention will be described in detail with reference to FIG.

The latch portion 60 according to the embodiment of the present invention includes a groove portion 62 formed on the side of one of the pair of doors 30 and a side portion 62 formed on the other side of the door 31 And may include protruding protrusions 61.

When a fire occurs, a pair of doors 30 are closed with the passages 11 and 13 closed, that is, when a pair of doors 30 is fixed to the door frame 20, The pair of doors 30 are inflated so that the protrusions 61 are inserted into the grooves 62 and the pair of doors 30 are engaged with each other It can become a state of being.

That is, in the latch portion 60 according to the embodiment of the present invention, when the pair of doors 30 close the passages 11 and 13 at the initial stage of the fire, the protrusion 61 is inserted into the groove portion 62 The door 30 can be opened or closed by pushing or pulling the door 30 because the pair of doors 30 are not engaged with each other. On the other hand, when the flame is adjacent to the fire door 10 The protrusions 61 fit into the groove 62 as the pair of doors 30 are thermally expanded due to the thermal expansion of the door 30 and the pair of doors 30 can be engaged with each other, Can be prevented from being opened and thermal deformation of the pair of doors 30 can be minimized.

The latch portion 60 further includes a first packing member 63 provided in the groove portion 62 and a second packing member 64 provided on a side surface 33 of the pair of doors 30 can do.

The first packing member 63 is configured to maintain the airtightness by blocking the gap 34 between the pair of doors 30 before the pair of doors 30 is thermally expanded in the initial stage of the fire, The packing member 64 is a structure for further improving the airtightness between the pair of doors 30 when the pair of doors 30 are thermally expanded to be interlocked with each other after the occurrence of a fire.

The latch portion 60 may further include a reinforcing member 65 provided on each of the pair of door assemblies 30 so as to face each other with the protruding portion 61 and the groove portion 62 interposed therebetween.

Not only thermal deformation of the pair of doors 30 can be further minimized by the reinforcing member 65 when the flame is adjacent to the fire door 10 but also a pair of reinforcing members 65 The protrusions 61 and the grooves 62 can be made relatively smooth so that the protrusions 61 and the grooves 62 due to thermal expansion when the flames are large , That is, the engagement of the pair of door halves 30 can be effectively performed.

As described above, the present invention relates to a flush-type door opening and closing door that is normally embedded in one side wall of a passage and automatically closes a passage when a fire occurs, and the embodiments can be modified in various forms. Accordingly, the present invention is not limited to the embodiments disclosed herein, and all changes which can be made by those skilled in the art are also within the scope of the present invention.

10: Embedded type Amphibious door 20: Door frame
30: a pair of doors 40: opening and closing rollers
50: fire safety pin 60: latch part

Claims (13)

A flush door for a flush type indoor and outdoor use in which a passageway is normally kept open and a passageway is automatically closed when a fire occurs,
A door frame installed in the passage;
The door is rotatably coupled to the door frame and is normally fixed to the side wall of the passage so that the passage is kept open. When a fire occurs, the door is automatically released and rotated by 90 or 180 degrees to close the passage A pair of doors;
When a fire occurs, the pair of doors are fixed to the door frame when the pair of doors is released from the fixing and rotated, and when the pair of doors is fixed to the door frame, An opening / closing roller for opening / closing the pair of doors so as to be opened only when the door is opened;
A fire safety pin fixing at least one of the doors of the pair of doors to the door frame by the heat generated by the fire in a state where the pair of doors is closed; And
And a latch for latching the pair of doors by heat generated by a fire while the pair of doors are closed,
Wherein the latch portion is provided at a side portion of the door of the other one of the pair of doors so as to be expanded by the heat generated at the time of fire occurrence and inserted into the groove portion, Wherein the protruding portion is formed with a protruding portion. The method according to claim 1,
The door frame includes a body installed on the opposite side of a space in which the door rotates with respect to the door, an extension extending from one side of the body in the space direction, and a latching part bent in the door direction from the end of the extension. Including,
Wherein the door includes a protruding portion protruding sideways of the door so as to be engaged with the engaging portion when the door is rotated by 90 ° or 180 ° to close the passage when the door is closed. Yang door lighting door. The method according to claim 1,
Wherein the opening / closing roller includes a roller provided on one of the door frame and the door, and a locking portion provided on the other of the door frame or the door,
Wherein the locking portion includes a locking member having a rolling portion that is rolled on the roller at an end thereof, and an elastic member that provides an elastic force to the locking member. The method according to claim 1,
The fire safety pin includes a fireproof pin, an elastic member for providing an elastic force to the fireproof pin, and a blocking plate for blocking the protrusion of the fireproof pin at normal times and for melting the fireproof pin when the fire occurs, Wherein the flap is a flap. delete The method according to claim 1,
Wherein the latch portion further comprises a first packing member which is provided in the groove portion to maintain airtightness between the pair of doors. The method according to claim 1,
Wherein the latch portion further comprises a reinforcing member provided on each of the pair of doors so as to face each other with the projecting portion and the groove portion interposed therebetween. delete delete delete delete A flush door for a flush type indoor and outdoor use in which a passageway is normally kept open and a passageway is automatically closed when a fire occurs,
A door frame installed in the passage;
The door is rotatably coupled to the door frame and is normally fixed to the side wall of the passage so that the passage is kept open. When a fire occurs, the door is automatically released and rotated by 90 or 180 degrees to close the passage A pair of doors; And
And a latch for latching the pair of doors by heat generated by a fire while the pair of doors are closed,
Wherein the latch portion is provided at a side portion of the door of the other one of the pair of doors so as to be expanded by the heat generated at the time of fire occurrence and inserted into the groove portion, And a first packing member that is provided in the groove and maintains airtightness between the pair of doors. A flush door for a flush type indoor and outdoor use in which a passageway is normally kept open and a passageway is automatically closed when a fire occurs,
A door frame installed in the passage;
The door is rotatably coupled to the door frame and is normally fixed to the side wall of the passage so that the passage is kept open. When a fire occurs, the door is automatically released and rotated 90 or 180 degrees to close the passage A pair of doors; And
And a latch for latching the pair of doors by heat generated by a fire while the pair of doors are closed,
Wherein the latch portion is provided at a side portion of the door of the other one of the pair of doors so as to be expanded by the heat generated at the time of fire occurrence and inserted into the groove portion, And a reinforcing member provided on each of the pair of doors so as to face each other with the projecting portion and the groove portion interposed therebetween.
KR1020150105407A 2015-07-25 2015-07-25 Buried double swing type fire door KR101774830B1 (en)

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KR101923643B1 (en) * 2018-04-20 2018-11-29 이명현 Anti-thermal deformation device of double fire doors
KR102154233B1 (en) * 2020-02-10 2020-09-09 주식회사 대광도어 Heat strain prevention apparatus for fire doors
KR102375408B1 (en) * 2021-05-15 2022-03-17 전주대학교 산학협력단 Fire pin device installed on fire door or fire door frame
KR102427887B1 (en) * 2021-07-06 2022-08-01 이규현 Fire pin device installed on fire door or fire door frame

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KR20190021649A (en) 2017-08-23 2019-03-06 세메스 주식회사 Fireproof shutter
KR102176650B1 (en) * 2019-11-19 2020-11-09 (주)유신테크 Fire prevention door
KR102415580B1 (en) * 2020-05-27 2022-07-01 (주)동광명품도어 Apparatus for preventing deformation of fire door and operating system using the same
KR102237179B1 (en) * 2020-06-10 2021-04-06 김형수 Buried fire door assembly
KR102259665B1 (en) * 2020-09-21 2021-06-02 (주)한국방화문 Fire doors reinforced with gap tightness

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KR100750903B1 (en) 2005-11-30 2007-08-22 한라산업(주) Folding Type Fireproof Door

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KR200340262Y1 (en) * 2003-09-03 2004-01-31 티비테크애드 주식회사 Fire door

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101923643B1 (en) * 2018-04-20 2018-11-29 이명현 Anti-thermal deformation device of double fire doors
WO2019203415A1 (en) * 2018-04-20 2019-10-24 이명현 Device for preventing deformation of fire-rated double door
KR102154233B1 (en) * 2020-02-10 2020-09-09 주식회사 대광도어 Heat strain prevention apparatus for fire doors
KR102375408B1 (en) * 2021-05-15 2022-03-17 전주대학교 산학협력단 Fire pin device installed on fire door or fire door frame
KR102427887B1 (en) * 2021-07-06 2022-08-01 이규현 Fire pin device installed on fire door or fire door frame

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