KR20220138503A - Ceiling reclamation type Fire door - Google Patents

Abstract

The present invention relates to a ceiling-embedded fire door capable of preventing the spread of damage by causing a fire door embedded horizontally in a ceiling to descend at a constant speed to safely block a passage in case of an emergency such as a fire. In accordance with the present invention, the ceiling-embedded fire door includes: a vertical frame installed vertically side by side on both side walls of an indoor passage, and a horizontal frame coupled to the upper end of the vertical frame to be installed horizontally on the ceiling of a building; a fire door provided horizontally inside the bottom of the horizontal frame to be hinged to one side of the horizontal frame; a shaft installed across the passage to be rotatable in an upper part of the fire door; and a door driving unit installed in an upper part of the horizontal frame to operate the fire door, wherein as the door driving unit unwinds a wire rope wound on the shaft, the fire door blocks the indoor passage by allowing a lower end part on one side to be lowered and rotated around a hinge on the other side to prevent the spread of damage caused by an emergency (a fire or the like), and the door driving unit reversely pulls and winds the wire rope onto the shaft to return the fire door to the ceiling.

Description

Ceiling reclamation type Fire door

The present invention relates to a ceiling-embedded fire door, and in the event of an emergency such as a fire, the fire door embedded horizontally in the ceiling descends at a constant speed to safely block the passage, thereby preventing the spread of damage. will be.

In general, fire doors are installed in passages inside buildings, and in the event of a fire, they prevent the spread of flames, smoke, toxic gases, etc. Provide physical means and evacuation time to quickly and safely evacuate people from the fire area or fire protection area.

Here, the installation is obligatory by the Fire Act in offices, commercial complexes, department stores, shopping malls, convention halls, etc. used by many people. Moreover, in recent years, in order to prevent safety accidents caused by fires and power outages in advance, various safety reinforcement devices are adopted or used, or reinforcement measures are promoted or planned accordingly. Meanwhile, the integrated screen fire shutter (built-in emergency door), which is widely used in multi-family houses, offices, schools, government offices, and public institutions, will be banned for safety and efficiency reasons. (To be implemented after October 2021)

Here, in the case of a fire door in a conventional building, a basic fire door (emergency door type) can be installed where the width is narrow, but in the case of a stair room with a rather wide passage, it is impossible to install only a fire door alone. After installation, there is a difficulty in having to separately install a fire door next to it. In particular, when a fire door is installed in a school or a place where many people walk, there is a high risk of damage and damage because the fire door is always exposed to the outside as well as a lot of inconvenience, and continuous management is required. In addition to external damage, it is easy to leave as it is because it is not normally used, such as automatic opening/closing devices, turntables, door checks, etc. In the worst case, the fire door does not close in an inoperable state, which can lead to a serious risk of not being able to perform a function again, so urgent improvement is required.

Korean Patent Publication No. 10-2085438, title of invention 'Fire shutter with lower roller' (Registration date February 28, 2020)

It is an object of the present invention to be horizontally buried in the ceiling in normal times so that the space of the passage can be utilized in daily life. It is to provide a ceiling-mounted fire door that can prevent fire damage.

A ceiling-embedded fire door of the present invention to achieve the above object includes: a vertical frame vertically installed side by side on both walls of an indoor passage, and a horizontal frame horizontally installed on the ceiling of a building by being coupled to the upper end of the vertical frame; a fire door provided horizontally inside the bottom surface of the horizontal frame and hingedly connected to one side of the horizontal frame; a shaft rotatably installed across the passage at the upper portion of the fire door; a door driving unit installed on the horizontal frame to operate the fire door; a controller for controlling the operation of the door driving unit; and, as the door driving unit unwinds the wire rope wound around the shaft, the fire door is rotated down by the other lower end based on one hinge to block the indoor passage. It is characterized in that the fire door is returned to the ceiling by preventing the spread of damage in an emergency (fire, etc.) and winding the wire rope with the shaft in reverse.

According to the present invention, the shaft is provided outside the lower end of the fire door, and the wire rope is configured to apply a tensile force in a tangential direction according to the lifting and rotating operation of the fire door.

According to the present invention, the shaft is characterized in that it further comprises a rope guide for guiding the progress of the wire rope.

According to the present invention, the door driving unit is characterized in that it is composed of an electric motor that generates rotational power by electric energy, and a power transmission unit that transmits the rotational power of the electric motor to the shaft.

The present invention can minimize fire damage as the fire door on the ceiling descends at a constant speed by the door driving unit to safely block the passage when a fire or emergency occurs, and the fire door acts as a brake for the door driving unit when the fire door moves up and down. It has an excellent safety effect by preventing sudden falls or malfunctions.

In addition, in the present invention, there is no inconvenience in using the passage in a state where the fire door is horizontally buried in the ceiling, and the daily space utilization is excellent. have. For example, if the height of the passage in the space where the fire door is installed exceeds the height of the existing fire door of 2100mm, the remaining upper part should be blocked with an iron plate, etc. It has the advantage of not disturbing the interior.

In addition, the present invention is very practical because it has a simple configuration and excellent durability, and can be easily installed anywhere on the ceiling of an indoor passage. There is an advantage that fire doors can be widely distributed at an affordable price.

In the present invention, since the shaft is located outside the lower outer end of the door, the tensile force acts in the direction of the wire rope to which the vertical load of the door acts, so that the door driving unit (electric motor, etc.) is overloaded to prevent overload of the door. It has a smoothing effect. In addition, by providing a rope guide on the shaft, the wire rope is wound stably without being disturbed along the moving direction, and the lifting operation of the door is smooth and there is an effect of preventing malfunction.

1 is a front view showing a ceiling-embedded fire door 100 in a longitudinal section according to a first embodiment of the present invention. FIG. 2 is a side view taken along line "A" - "A" of FIG. 1; 3 is a plan view taken along the line "B" - "B" of FIG. 1 . 4 is a cross-sectional front view of the shaft 140 installation structure of the ceiling-embedded fire door 100 according to the second embodiment of the present invention. 5 is a cross-sectional front view of the shaft 140 installation structure of the ceiling-embedded fire door 100 according to the third embodiment of the present invention.

First, prior to describing the present invention in detail, the present invention is not intended to be limited to specific embodiments, and it should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

The terms used in this specification are used only to describe specific embodiments, and are not intended to limit the present invention, and the singular expression includes a plural expression unless the context clearly dictates otherwise. As used herein, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification is present, and includes one or more other features or It should be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof does not preclude the possibility of addition.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Although the present invention has been described with reference to the embodiment shown in the drawings, which is described as one embodiment, the technical idea of the present invention and its core configuration and operation are not limited thereby. If it is determined that a detailed description of a known function or configuration related thereto may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a longitudinal cross-sectional front view of a ceiling-embedded fire door 100 according to a first embodiment of the present invention, and FIG. 2 is a side view taken along the line "A"-"A" of FIG. 1 . And FIG. 3 is a plan view taken along the line "B"-"B" of FIG. 1 .

The ceiling-embedded fire door 100 of the present invention according to the drawings is a vertical frame 110 vertically installed side by side on both sides of the wall W of the indoor passage P, and the vertical frame 110 is coupled to the upper end of the building. Horizontal frame 120 installed horizontally on the ceiling (R); a fire door 130 provided horizontally inside the bottom surface of the horizontal frame 120 and connected to one side of the horizontal frame 120 by a hinge 135; a shaft 140 rotatably installed across the passage P at the upper portion of the fire door 130; a door driving unit 150 installed on the horizontal frame 120 to operate the fire door 130 ; and a controller 160 for controlling the operation of the door driving unit 150. As the door driving unit 150 unwinds the wire rope 145 wound around the shaft 140, the fire door 130 ) is to prevent the spread of damage in an emergency (fire, etc.) by blocking the indoor passage (P) by rotating the lower end 132 of the other side down based on the hinge 135 on one side, and conversely, the shaft 140 with the wire rope It is characterized in that the fire door 130 is returned to the ceiling (R) by winding (145).

In addition, according to the present invention, the shaft 140 is provided outside the lower end 132 of the fire door 130 so that the wire rope 145 has a tensile force in the tangential direction according to the lifting and rotating operation of the fire door 130 . It is characterized in that it is configured to work.

In addition, according to the present invention, the shaft 140 is characterized in that it further comprises a rope guide 141 for guiding the progress of the wire rope (145).

Also, according to the present invention, the door driving unit 150 includes an electric motor 151 that generates rotational power by electric energy, and a power transmission unit 152 that transmits the rotational power of the electric motor 151 to the shaft 140 . ) is characterized in that it is composed of

The above is described in more detail as follows.

First, as shown in Figs. 1 to 3, the ceiling-embedded fire door 100 according to an embodiment of the present invention is installed in the indoor passage P to block the passage P when an emergency such as a fire occurs. In order to reduce damage and secure safety, the vertical frame 110 and the horizontal frame 120 supporting the fire door 130, the fire door 130 that blocks the passage P, and the fire door 130 are operated. It is composed of a shaft 140 and a door driving unit 150 for controlling the device, and a controller 160 for controlling the device.

The vertical frame 110 is installed vertically side by side on both sides of the wall (W) of the indoor passage (P) inside the building and is fixed to the wall so that the upper end is extended to the ceiling (R), and a horizontal frame is placed on the upper end of the vertical frame (110). (120) is combined. The horizontal frame 120 is horizontally installed on the indoor ceiling (R) of a building in a square or rectangular shape, and one end is coupled to the upper end of the vertical frame 110 . The vertical frame 110 and the horizontal frame 120 can be securely fixed and installed with anchors to beams or slabs of a building wall or ceiling to support the fire door 130 to operate stably, and a support for maintaining a gap with the slab. (135).

The fire door 130 is blocked or opened in the passage P, is provided inside the bottom surface of the horizontal frame 120 and connected to one side hinge 135 of the horizontal frame 120 to rotate up and down sections. The fire door 130 forms an emergency door 131 in the middle of the bottom so that when the fire door 130 blocks the passage P, it can be manually opened and quickly escaped.

On the other hand, as shown in FIG. 2 , the horizontal frame 120 and the fire door 130 are woven into a rectangular frame corresponding to the area of the indoor passage P, and are woven into the indoor passage P by the fire door 130 . ) can be completely blocked. The hinge 135 is a first hinge 135a connecting the front and rear corners of the fire door 130 to one side of the horizontal frame 120 at the upper end of the vertical frame 110, and the width of the fire door 130 (width of the passage) Accordingly, one or a plurality of second hinges 135b for connecting the middle portion and the horizontal frame 120 may be provided. The first and second hinges 135a and 135b include a pair of lugs respectively attached to the vertical frame 110 and the horizontal frame 120 and a pin through-coupled to the lugs.

In addition, the fire door 130 includes a door check that automatically and slowly closes the door on the first and second hinges 135a and 135a to serve as a brake, so that the abrupt operation of the fire door 130 is provided. It provides a cushioning action to prevent falling, malfunction, etc., and can prevent overload of the door drive unit (electric motor). Alternatively, the first and second hinges 135a and 135a may be provided with ordinary door closers to vary and adjust the operation speed of the fire door 130 so that the fire door 130 is more stable and smooth. It works and is very safe.

In addition, the vertical frame 110 and the horizontal frame 120 form 'L'-shaped grooves 111 and 121 on one side, respectively, to widen the contact area with the fire door 130, and the fire door 130 is a groove portion. It can be closely adhered and blocked while being fitted in (111, 121). The grooves 111 and 121 may be provided with a flame-resistant (non-flammable) gasket to improve the shielding rate.

As shown in FIG. 3, the shaft 140 is provided horizontally across the passage P at a predetermined interval on the upper portion of the fire door 130 and the horizontal frame 120, and the front and rear ends have retainers ( 142) is firmly fixed to the wall (W) so as to be rotatable by a rotation support means, such as. Meanwhile, the retainer 142 includes a bearing and a bearing housing for minimizing rotational friction (resistance) force with the shaft 140 .

One end of the wire rope 145 is coupled to the shaft 140 and wound to a predetermined length around the circumference, and the other end of the wire rope 145 is connected to the lower end 132 of the fire door 130 in a straight line. A plurality of wire ropes 145 are provided at regular intervals in the front and rear to sufficiently support the vertical operating load of the fire door 130, and a hook 146 for connecting the wire rope 145 is attached to the lower end 132. .

Next, the door driving unit 150 is for lifting and lowering the fire door 130 at a constant speed, and the electric motor 151 and the power transmission unit 152 inside the case 153 fixed to the wall or slab of the building is built-in The electric motor 151 generates rotational power (kinetic energy) by electric energy, and this rotational power is transmitted to the shaft 140 through the power transmission unit 152 to pull or unwind the wire rope 145. have. The power transmission unit 152 includes a chain and a sprocket, a belt and a pulley, a sputtering gear, etc. that transmit the rotational power of the electric motor 151 to the shaft 140, and the rotational power and rotational speed (operation speed). ) further includes a transmission capable of adding or subtracting.

That is, the door driving unit 150 rotates the shaft 140 from the upper part of the horizontal frame 120 with the electric motor 151 to unwind or wind the wire rope 145. It acts as a brake that can descend or ascend and return at a constant speed. Accordingly, it is possible to prevent a sudden fall or collision when the fire door 130 is operating, and to prevent accidents such as a body part being caught between the door and the frame during evacuation.

The controller 160 is for controlling the operation of the door driving unit 150 and the device, and can control the overall operation of electrical components such as the electric motor 151 and is mounted on the wall W or the vertical frame 110 . Attached and exposed so that it can be seen clearly. The controller 160 may include a power button, a door operation button and an emergency stop button for operating a door, a display or indicator light for visually outputting an operation state, a speaker for audibly outputting an alarm or a guide voice, etc. . And although not shown in a separate drawing, the controller 160 includes a power supply for supplying external power to an electric (electronic) component such as an electric motor 151 or an electric (electronic) circuit. The power supply unit contacts the internal power supply (terminal box) of the building through the electric wire, and power is applied at all times, so that it can respond quickly in case of an emergency. The power supply unit includes an emergency battery for preventing a problem in which the power supply is interrupted due to an unexpected power outage or the like.

The full-length buried type fire door 100 of the present invention configured as described above, as the shaft 140 rotating by the door driving unit 150 unwinds the wire rope 145, the fire door 130 has one side hinge 135 ), the lower end 132 of the other side descends while rotating the section to block the indoor passage (P) to prevent the spread of damage in case of an emergency due to fire, etc. It can help to protect precious lives and property.

[First embodiment]

As described above, the full-length buried type fire door 100 according to the first embodiment of the present invention is as shown in FIGS. In the section between the lower end 132 and the hinge 135 , the lower end 132 of the fire door 130 is wound with a wire rope 145 and fixed inside the horizontal frame 120 .

If an emergency occurs and the fire door 130 descends, when the wire rope 145 is released, the vertical load of the fire door 130 acts on the wire rope 145 . At this time, since the shaft 140 is located inside (between the lower end and the hinge) of the fire door 130, when the fire door 130 descends (counterclockwise) with respect to the hinge 135, the shaft 140 is rotated. The rotational moment of the lower part of the door 132 spaced apart from the outside of the is rapidly accelerated by the weight of the fire door 130, or, conversely, an overload that may occur when the fire door 130 is lifted and returned. expected. Accordingly, in the present invention, a stable opening and closing operation of the fire door 130 is guaranteed by disclosing the following second or third embodiment.

[Second embodiment]

4 is a cross-sectional front view of the shaft 140 installation structure of the ceiling-embedded fire door 100 according to the second embodiment of the present invention.

According to the second embodiment of the present invention, since the shaft 140 is located outside (left) of the lower end 132 of the fire door 130 as shown in FIG. 4 , when the fire door 130 descends, the wire The rope 145 is pulled in a tangential direction with respect to the rotation radius D of the fire door 130, and a tensile force is applied in the moving direction, so that the rope 145 can be stably descended without an abrupt operation.

[Third embodiment]

5 is a cross-sectional front view of the shaft 140 installation structure of the ceiling-embedded fire door 100 according to the third embodiment of the present invention.

According to the third embodiment of the present invention, the shaft 140 is located in the section between the door lower end 132 and the hinge 135 as shown in FIG. 5 , but directly above the door lower end 132 . Alternatively, the wire rope 145 is spanned by horizontally installing a guide bar 147 parallel to the shaft 140 on the outside (left) of the lower end 132 . That is, when the fire door 130 descends, the wire rope 145 is pulled in a tangential direction with respect to the rotation radius D of the fire door 130 , and a tensile force is applied in the moving direction, thereby stably descending. The guide bar 147 includes a bearing and a sleeve for minimizing rotational friction (resistance) force.

On the other hand, in the above-described embodiments of the present invention, a ring 146 for connecting the fire rope 145 is attached to the lower end 132 of the horizontal frame 120 , and the rotation radius D of the fire door 130 is a hinge It means the distance from the center of rotation of (153) to the lower end of the door 132 or the hook 146 for connection.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains may make various modifications, changes and substitutions within the scope without departing from the essential characteristics of the present invention. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are for explanation rather than limiting the technical spirit of the present invention, and the scope of the technical spirit of the present invention is not limited by these embodiments and the accompanying drawings. . The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

100: ceiling-mounted fire door 110: vertical frame 120: horizontal frame 130: fire door 140: shaft 145: wire rope 150: door drive unit 160: controller D: turning radius P: passage R: Ceiling

Claims (4)

In the ceiling-embedded fire door, the vertical frame 110 vertically installed side by side on both sides of the wall W of the indoor passage P, and horizontally installed on the building ceiling R by combining with the upper end of the vertical frame 110 frame 120; a fire door 130 provided horizontally inside the bottom surface of the horizontal frame 120 and connected to one side of the horizontal frame 120 by a hinge 135; a shaft 140 rotatably installed across the passage P at the upper portion of the fire door 130; a door driving unit 150 installed on the horizontal frame 120 to operate the fire door 130; a controller 160 controlling the operation of the door driving unit 150; including, the door driving unit ( 150) as the wire rope 145 wound around the shaft 140 is unwound, the fire door 130 is rotated down by the other lower end 132 based on the hinge 135 on one side to rotate the indoor passage (P). Prevents the spread of damage in emergency situations (fire, etc.) by blocking ceiling-mounted fire door. According to claim 1, wherein the shaft 140 is provided outside the lower end 132 of the fire door 130, so that the wire rope 145 has a tensile force in a tangential direction according to the lifting and rotating operation of the fire door 130. Ceiling embedded fire door, characterized in that it is configured to act. The fire door of claim 1, wherein the shaft (140) further comprises a rope guide (141) for guiding the progress of the wire rope (145). According to claim 1, wherein the door driving unit 150 is an electric motor (151) that generates rotational power by electric energy, and a power transmission unit (152) that transmits the rotational power of the electric motor (151) to the shaft (140). ), characterized in that the ceiling-embedded fire door.

Images