KR101884503B1

KR101884503B1 - The door improved fire protecting property and the fire door unit comprising the same

Info

Publication number: KR101884503B1
Application number: KR1020150113095A
Authority: KR
Inventors: 오경옥
Original assignee: 오경옥
Priority date: 2015-08-11
Filing date: 2015-08-11
Publication date: 2018-08-01
Also published as: KR20170019124A

Abstract

The present invention relates to a door with fire resistance and a fire door unit comprising the same. The door has a first plate (111), a second plate (112) facing away from the first plate (111) A first extending bend 113 extending in the direction of the second plate 112 and a second extending bend 114 extending from the end of the second plate 112 and extending in the direction of the first plate 111, The first plate 111 and the second plate 112 are separated from each other by a door 110 and a first plate 111 and a second plate 112. The first plate 111 and the second plate 112 are spaced apart from each other, And a door frame 120 having a sealing flame retardant packing member 122.

Description

FIELD OF THE INVENTION [0001] The present invention relates to a door having improved fire resistance and a fire door unit including the door,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door having improved fire resistance and a fire door unit including the same, and more particularly, to a door that can be used in the fields of construction, interior decoration, and disaster prevention.

A fire door unit refers to a door installed in a building to prevent a fire from spreading. Fireproof doors shall meet the Fireproof Door Standard requirements of the Ministry of Land Transport and Public Notice No. 2015-212. Article 5 of this Notice stipulates fireproof door fireproof test methods and test methods. The fireproof door test method according to these regulations must have fireproof performance for one hour at 980 ℃.

In order to achieve fire resistance in fire environments, fireproofing must be performed to prevent ducts that can not pass gases such as toxic gases and to prevent deformation (bending phenomenon) that can occur in fire conditions.

1 is a view showing a configuration of a conventional fire door unit. In FIG. 1, a main heat insulating material M ₁ is filled between two spaced plates P ₁ and P ₂ . The internal stiffener (R) prevents the fire door from being bent by heat during a fire to prevent it from being detached from the door frame.

In order to secure the inner reinforcement (R) to plate (P _2), it is arranged as shown in Figure 1 so as to face the internal reinforcement (R) and one side of the plate (P _2), and then, the internal reinforcement (R) and the plate (P ₂ ). However, since the space between the plates P ₁ and P ₂ is narrow, it is not easy to weld the internal stiffener R to the plate P ₂ , and the operation time is also long.

Korean Registered Patent No. 20-0448747 (door with improved insulation and airtightness)

An object of the present invention is to provide a door having excellent ductility and fire resistance and being easy to manufacture and a fire door unit including the same.

The fire door unit according to an embodiment of the present invention includes a first plate 111, a second plate 112 facing away from the first plate 111, a second plate 112 bent at an end of the first plate 111, A first extension bend 113 extending in the direction of the first plate 112 and a second extension bend 114 bending at the end of the second plate 112 and extending in the direction of the first plate 111 110 and the first plate 111 and the second plate 112. The door frame 120 contacts the ends of the first plate 111 or the second plate 112 to seal the spaces spaced apart from each other, Wherein the first extension bend portion 113 and the second extension bend portion 114 are spaced apart from each other with the heat insulating member 115 therebetween And the first extension bend or the second extension bend 114 can be folded and stacked in multiple layers.

Preferably, the second extension bends 114 may be stacked in layers of two to five layers, and the multiple layers may be spaced apart from one another and the insulation may be disposed therebetween.

The door according to the present invention and the fire door unit having the same according to the present invention do not require a process for welding the internal reinforcing member to the door and are excellent in fire resistance to prevent deformation (warping) of the fire door due to fire through a simple bending process. Further, since the space of the door and the door frame is sealed by using the flame-retardant packing member, it is possible to secure the ductility to block the spread of the noxious gas and the flame.

1 is a view showing a configuration of a conventional fire door unit.
2 is a perspective view illustrating a fire door unit according to a first embodiment of the present invention.
3 is a cross-sectional view taken along the line II 'shown in FIG.
4 is an enlarged view for explaining the second extension bending portion shown in Fig.
5 is a cross-sectional view illustrating a fire door unit according to a second embodiment of the present invention.
Fig. 6 is an enlarged view for explaining the second extension bending portion shown in Fig. 5;
7 is an enlarged view for explaining a fire door unit according to a third embodiment of the present invention.
8 is an enlarged view for explaining a fire door unit according to a fourth embodiment of the present invention.

The present invention is capable of various modifications and various forms, and specific embodiments are illustrated in the drawings and described in detail in the text. It should be understood, however, that the invention is not intended to be limited to the particular forms disclosed, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprising" or "having ", and the like, are intended to specify the presence of stated features, integers, steps, operations, elements, parts, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, parts, or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted as ideal or overly formal in meaning unless explicitly defined in the present application Do not.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

FIG. 2 is a perspective view showing a fire door unit according to a first embodiment of the present invention, and FIG. 3 is a sectional view taken along the line I-I 'shown in FIG. Referring to FIGS. 2 and 3, the fire door unit 100 according to the first embodiment of the present invention includes a door 110 and a door frame 120. The door 110 includes a first plate 111, a second plate 112, a first extending bend 113, and a second extending bend 114.

The first plate 111 and the second plate 112 may be made of a metal, an alloy, or a synthetic resin having high strength and high flame resistance, and form the framework of the door 110. As shown in FIG. 3, the first plate 111 and the second plate 112 may be arranged to face each other and face each other.

The first extension bend 113 may be bent at the end of the first plate 111 and extend in the direction of the second plate 112. The angle at which the first extending bend 113 is bent at the end of the first plate 111 and the number of times the first extending bend 113 is bent can be variously changed according to the shape of the door 110 and the door 120. For example, as shown in FIG. 3, the first extending bend portion 113 is bent at a right angle from the end of the first plate 111 toward the second plate 112, . The first extension bending portion 113 extends in the direction of the second plate 112 and is further extended from the first plate 111 at a point where the second extension bending portion 114 is spaced from the second extension bending portion 114 by a distance of 2 mm to 20 mm. ) Direction. The first extension bend 113 may have a thickness of 0.6 mm to 1.2 mm, but is not limited thereto.

The second extension bend 114 is bent at the end of the second plate 112 and extends in the direction of the first plate 111. The angle at which the second extending bend 114 is bent at the end of the second plate 112 and the number of times the second extending bend 114 is bent can be variously changed according to the shape of the door 110 and the door frame 120. For example, as shown in FIG. 3, the second extension bend 114 is bent at a right angle in the direction of the first plate 111 at the end of the second plate 112, And may be extended to a position facing the first extension bend 113. [0052] Here, the second extending bend 114 may have a shape of a coil that is folded and folded again along the surface facing the first extending bend 113. The second extension bend 114 can replace the conventional internal stiffener and improve the fire resistance.

4 is an enlarged view for explaining the second extension bending portion shown in Fig. Referring to FIGS. 3 and 4, the curved line curved at the lower portion of the first plate 111, with respect to the layer facing the first extending bend 113, And the length of the curved line curved toward the inside is shortened, so that it can have a shape that is wound inside several times. Further, unlike the embodiment shown in FIG. 4, as the second extending bend 114 is bent, the length of the stacked layers in the inner layer can be gradually reduced.

When calculating the number of laminated layers based on the layer of the second extending bend 114 facing the first extending bend 113, it is preferable that the layers are stacked in layers of 2 to 5 layers. Therefore, it is preferable that the second extending bent portion 114 is bent once to four times to improve the heat insulating property and the fire resistance. The second extension bend 114 may have a thickness of 0.6 mm to 1.2 mm, but is not limited thereto.

The second extension bending portions 114, which are stacked in layers, can be stacked in a spaced-apart form without being in contact with each other. In addition, the second extension bending portion 114 can prevent the door from being deformed due to heat generated during a fire, thereby improving fire resistance. As shown in FIG. 4, the heat insulating material M may be filled between the first plate 111 and the second plate 112 so that heat is not transmitted to each other. Preferably, the door 100 may further include a heat insulating member 115 disposed in a space where the first extending bend 113 and the second extending bend 114 face each other.

The door frame 120 includes a base 121 and a flame-retardant packing member 122. The base 121 is a skeleton forming the door frame 120. The door frame 120 is coupled with the hinge H at one side and engages with a locking member (not shown) at the other side of the door 100 to fix and seal the door 110. The base 121 may have a shape corresponding to an end of the door 100 so as to house the door 100 therein. Specifically, the base 121 has a shape corresponding to the first extending bend 113 and the second extending bend 114, and may be spaced apart from each other at equal intervals. Therefore, a certain space T may be formed at the ends of the base 121 and the door 110.

The flame-retardant packing member (122) seals the space (T). When a fire occurs, the space T must be sealed to prevent toxic gases or flames from spreading. The flame retardant packing member 122 may have a material selected from halogen, phosphorus, antimony, phosphoric ester, melamine, aluminum hydroxide, magnesium hydroxide, and mixtures thereof, but is not limited thereto. The flame retardant packing member 122 may be disposed at an edge portion where the first plate 111 is connected to the first extension bend 113. 6, when the door 110 is fixed to the door frame 120, a corner part of the first plate 111, which is connected to the first extension bend 113, 122 can be pressurized. Therefore, the space T of the door and the door frame can be sealed by the flame-retardant packing member.

FIG. 5 is a cross-sectional view illustrating a fire door unit according to a second embodiment of the present invention, and FIG. 6 is an enlarged view for explaining a second extension bending portion shown in FIG.

Referring to FIGS. 5 and 6, the fire door unit according to the second embodiment of the present invention includes a door 110 and a door frame 120. The door 110 includes a first plate 111, a second plate 112, a first extension bend 113, a second extension bend 114 and a heat insulating member 115, 120 includes a base 121 and a flame-retardant packing member 122.

The fire door unit according to the second embodiment of the present invention has a configuration corresponding to that of the first embodiment described above except for the second extension bending portion. Therefore, the description of the components omitted in the second embodiment should be interpreted in the corresponding sense if they have the same names as the components of the first embodiment.

The second extending bend 114 may have a form in which the bent portion is repeated several times in the form of "∪" and "∩". When calculating the number of laminated layers of the second extending bend 114 based on one surface of the second extending bend 114 facing the first extending bend 113, It is preferable to improve the heat insulating property and the fire resistance. Thus, the second extension bend 114 can be bent once to four times. Also, unlike FIG. 6, as the second extending bend 114 is folded, the stacked length of the upper layer may gradually become shorter.

7 is an enlarged view for explaining a fire door unit according to a third embodiment of the present invention. The fire door door unit according to the third embodiment of the present invention has a configuration corresponding to that of the first embodiment described above except for the second extending bend portion and the heat insulating member. Therefore, the description of the components omitted in the third embodiment should be interpreted in the corresponding sense if they have the same names as the components of the first embodiment.

Referring to FIG. 7, the heat insulating material M may be filled in a space between the first extending bend portion 113 and the second extending bend portion 114 in place of the heat insulating member used in the first embodiment. In addition, the first extension bend 113 may have a single layer shape rather than being bent several times.

8 is an enlarged view for explaining a fire door unit according to a fourth embodiment of the present invention. The fire door unit according to the fourth embodiment of the present invention has a configuration corresponding to the above-described first embodiment except for the first extending bend, the second extending bend, and the heat insulating member. Therefore, the description of the components omitted in the fourth embodiment should be interpreted in the corresponding sense if they have the same names as the components of the first embodiment.

8, the heat insulating material M can be filled in a space between the first extending bend portion 113 and the second extending bend portion 114, in place of the heat insulating member used in the first embodiment. In addition, the first extension bend 113 may have a folded shape, and the second extension bend 114 may be formed as a single layer without being stacked in multiple layers. Also, unlike FIG. 8, as the first extending bend 113 is folded, the stacked length of the upper layer may gradually become shorter.

In the first to fourth embodiments, the fire door unit of the present invention is described by exemplifying the left and right side portions of the door and the door frame. However, it is to be understood that the fire door unit of the present invention can be applied to the upper and lower sides.

As described above, the door according to the present invention and the fire door unit including the door do not require welding work for connecting the internal stiffener to the plate. By simply bending the plate a plurality of times, it is possible to prevent the warpage of the fire door due to smoke and fire (fire resistance). Further, since the space of the door and the door frame is sealed by using the flame-retardant packing member, it is possible to secure the ductility to block the spread of the noxious gas and the flame.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the inventions. It will be clear to those who have knowledge of.

100: Fire door unit
110: door 111: first plate
112: second plate 113: first extension bend
114: second extension bent portion 115: heat insulating member
120: door frame 121: base
122: Flame retardant packing member

Claims

A first plate 111;
A second plate (112) facing away from the first plate (111);
A first extension bend 113 bent at an end of the first plate 111 and extending in the direction of the second plate 112; And
And a second extending bend (114) bent at an end of the second plate (112) and extending in the direction of the first plate (111)
The first extending bend 113 and the second extending bend 114 are spaced apart from each other and the first extending bend 113 or the second extending bend 114 is disposed in a first The first plate 111 and the second plate 112 are prevented from being bent by the flame by being folded and stacked in the inward direction facing the first plate 111 and the second plate 112,
The first extending bend 113 or the second extending bend 114 are stacked in three or more layers to form an internal stiffener in the longitudinal direction of the door and a plurality of stacked layers are spaced apart from each other Improved fire resistant door.

delete

The method according to claim 1,
Wherein the door further comprises a heat insulating member (115) disposed in a space where the first extending bend (113) and the second extending bend (114) are opposed to each other.

A fire door unit comprising a door (110) improved in heat insulation and fire resistance, and a door frame (120) sealing a space defined by the door (110)
A second plate 112 which is bent at an end of the first plate 111 and extends in the direction of the second plate 112, a first plate 111, a second plate 112 facing the first plate 111, A door 110 including a first extension bend 113 and a second extension bend 114 bending at an end of the second plate 112 and extending in the direction of the first plate 111; And
A flame-retardant packing member (not shown) spaced apart from the first plate 111 and the second plate 112 and sealing a space in contact with the first plate 111 or the end of the second plate 112 And a door frame (120) having a door (122)
The first extension bend 113 and the second extension bend 114 are spaced apart from each other and the first extension bend 114 or the second extension bend 114 is disposed on the first plate 111 And the second plate 112 are folded inward to face each other to prevent the first plate 111 and the second plate 112 from being bent by the flame,
The first extending bend 113 or the second extending bend 114 are stacked in three or more layers to form an internal stiffener in the longitudinal direction of the door and a plurality of stacked layers are spaced apart from each other A fire door unit.

delete

6. The method of claim 5,
Wherein the door further comprises a heat insulating member (115) disposed in a space where the first extending bend (113) and the second extending bend (114) are opposed to each other.