KR20210052826A - Closed structure of automatic door - Google Patents

Abstract

The present invention relates to a sealing structure of an automatic airtight fire door. When a door is slid to close an entry space, the door moves toward an upper door frame along an inclined surface of a trolley rail and tightly sticks to a gasket to improve sealing power to effectively block the inflow of toxic gas and inside/outside air. When the door slides, a bracket underneath the door moves in a guide rail to prevent the door from shaking. When the door moves to the upper door frame and a floor surface, a sticking surface is guided along a guide surface and a vertical surface of the bracket sticks to the inner wall of the guide rail to stably perform a sealing operation of the door.

Description

Closed structure of automatic door

The present invention relates to a sealing structure of an airtight fireproof automatic door, and more particularly, when the door is slid to close the access space, the door moves in the direction of the side door frame along the slope of the trolley rail so that the door closely adheres to the gasket. Therefore, the sealing power is further improved to effectively block the inflow of toxic gas and internal/external wind. When sliding the door, the bracket at the bottom of the door moves within the guide rail, preventing the door from shaking. When the door moves toward the bottom and upper door frames, It relates to a sealing structure of an airtight fireproof automatic door stably performing the sealing operation of the door because the contact surface is guided along the guide surface and the vertical surface of the bracket is in close contact with the inner wall surface of the guide rail.

In general, automatic doors are doors that open and close automatically when a person or other object approaches the front of the door.There is a button in front of the door to open and close when a button is pressed, or a pressure sensor or an infrared sensor is provided without touching the door directly. It is to open and close the door by recognizing the approach of the person.

In the general structure of the automatic door, a rail is provided on the floor or ceiling side, the fixed door is fixed to one side of the access space, and the door is configured to open and close along the rail to the left and right. When the door is overlapped and the door is closed, the fixed door and the partial section of the door are overlapped and extended.

In this case, the fixed door may be replaced with a space in which the entrance door can be inserted on the wall side where the automatic door is installed.

In the case of the automatic door as described above, in order for the door to move left and right along the rail, it is spaced a certain distance from the fixed door or the door insertion space, and external noise, air, foreign matter, etc. are introduced through this gap.

Recently, in order to solve these problems, a closed sliding automatic door has been registered as Korean Patent No. 10-1896427.

In the pre-registered invention, when the door part is slid, it is guided along the trolley rail and moves in the direction in which the door part is closed.At this time, the trolley moves along the inclined surface of the trolley rail in the direction of the floor surface and the door frame, and the door seal contacts the floor surface and the bracket. It is a closed configuration.

However, in the pre-registered invention, when the door part is slid, the sliding bracket formed under the door part moves along the lower guide sliding rail, so that the door part does not move smoothly, and it is very difficult to open and close the door part.

In addition, since the door seal that seals the door portion is simply made of a rubber material, it is vulnerable to fire, and there is a problem in that a gap is generated between the door portion and the door frame, and toxic gas is introduced.

As a way to solve these problems, a non-combustible gasket for fire doors has been registered as Korean Utility Model No. 20-0474104, and the pre-registration design is to form a silicone coating layer on one or both sides of the elastic cylindrical non-combustible material layer. The non-combustible material layer is formed by rolling a rectangular fiberglass fabric into a cylindrical shape, and adhesive portions are formed along both long sides of the rectangular fiberglass fabric to bond the upper limb adhesive portions to each other to form a cylindrical shape, and the silicone coating layer is cured at room temperature. It is composed of type heat-resistant silicone.

However, since the non-combustible material layer as described above is made of a fiberglass fabric, it has the advantage of having a small frictional force, but it is difficult to install due to lack of health, and there is a disadvantage in that the airtightness performance is deteriorated due to uneven flatness at the time of installation.

In addition, the non-combustible material layer has the advantage of withstanding high temperatures due to fire, but there is a problem in that the non-combustible material layer alone cannot tightly seal between the fire door and the wall surface.

Republic of Korea Patent Registration No. 10-1896427 (registered on Sep. 3, 2018) Republic of Korea Utility Model Registration No. 20-0474104 (2014.08.14 registration)

Accordingly, it was made in consideration of all the problems of the prior art as described above, and the purpose is to close the access space by sliding the door, the door moves in the direction of the upper door frame along the slope of the trolley rail, and the door closely adheres to the gasket. It is intended to provide a sealing structure of an airtight fireproof automatic door that effectively blocks the inflow of toxic gas and internal/external wind by further improving the sealing power.

In addition, another object of the present invention is to prevent shaking of the door because the bracket at the bottom of the door moves within the guide rail when sliding the door, and when the door moves toward the bottom surface and the upper door frame, the contact surface is guided along the guide surface, and the vertical surface of the bracket Since it is in close contact with the inner wall of the guide rail, it is intended to provide a sealing structure for an airtight fireproof automatic door that stably performs the sealing operation of the door.

The present invention was devised to solve the above problems, and the sealing structure of the airtight fireproof automatic door of the present invention is a pair of doors that are located between the upper door frame and the side door frame and slide left and right to open and close the access space. ;

A trolley rail located in the upper direction of the door and coupled to the upper door frame to have an inclined surface;

A gasket fixed to one side and a lower portion of the door, and to the upper and side door frames;

A bracket formed under the door and operating within a sliding rail;

A guide rail formed in a longitudinal direction on a bottom surface corresponding to the door to guide the bracket when the door slides;

An inclined contact surface formed on a lower side of the bracket;

It is formed on one side of the guide rail and characterized in that the guide surface is formed to be inclined to correspond to the contact surface is configured.

In addition, among the gaskets, the lower sealing gasket fixed to the lower part of the door is a tubular fiberglass fabric gasket inserted into a pair of insertion grooves formed before and after the door, and the tubular hiberglass fabric gasket is a magnet attachment type. It is installed detachably by structure.

The contact surface is in close contact with the guide surface when the door is open, and when the door is closed, the vertical surface of the bracket on the other side of the contact surface is in close contact with the inner wall surface of the guide rail.

In addition, when the door is moved from the open state to the closed state, the contact surface slides down in a state in close contact with the guide surface, so that the vertical surface is in close contact with the inner wall surface of the guide rail, and the door is completely closed. In the case, the vertical surface and the contact surface of the bracket are in close contact with the guide surface of the guide rail and are pinched to fix the door.

A fixing plate protruding downward from the bottom of the door to fix the bracket is further provided, and the fixing plate is formed between the gasket and the gasket so as not to interfere with the gasket during the opening and closing operation of the door, and the bracket is compared to the fixing plate. It is preferable to be made of a material having high wear resistance and low sliding friction.

According to the sealing structure of the airtight fireproof automatic door of the present invention, when the door is closed by sliding the door, the door moves in the direction of the upper door frame along the slope of the trolley rail so that the door closely adheres to the gasket, thereby further improving the sealing force. It has the effect of blocking the inflow of toxic gas and internal/external wind.

In addition, according to the sealing structure of the airtight fireproof automatic door of the present invention, when the door is sliding, the bracket at the bottom of the door moves within the guide rail to prevent the door from shaking, and when the door moves toward the bottom surface and the upper door frame, the contact surface follows the guide surface. While being guided, since the vertical surface of the bracket is in close contact with the inner wall surface of the guide rail, there is an effect of stably performing the sealing operation of the door.

1 is a front configuration diagram of an automatic door to which the present invention is applied.
2 is a plan cross-sectional view of an automatic door to which the present invention is applied.
3 is a side cross-sectional view showing a state in which the door of the automatic door to which the present invention is applied has opened the access space.
4 is an enlarged cross-sectional view of portion'A' of FIG. 3.
5 is a side cross-sectional view showing a state in which the door of the automatic door to which the present invention is applied is slid to close the access space.
6 to 7 are enlarged cross-sectional views showing a state in which the door of an automatic door to which the present invention is applied is closed.

Hereinafter, other objects and features of the present invention in addition to the above objects will be clearly revealed through the description of the embodiments with reference to the accompanying drawings, and unless otherwise defined, all terms used herein including technical or scientific terms are the present invention. It has the same meaning as commonly understood by those of ordinary skill in the art to which the invention belongs.

Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

First, as shown in Figure 1, the automatic door is provided with a left and right sliding rail 30 coupled to the upper side of the door 100, a driving unit 40 coupled to the upper side of the left and right sliding rail 30 is provided, and , The trolley 50 coupled to the belt of the driving unit 40 is configured to slide left and right by the driving of the driving unit 40, and the automatic door configured as described above is registered as Korean Patent Registration No. 10-1896427. Since it is described in the structure of the closed sliding automatic door, a detailed description will be omitted.

The sealing structure of the present invention airtight fireproof automatic door, as shown in Figs. 2 to 3, a pair of doors 100, trolley rail 200, gasket 300, bracket 400, guide rail 500 It consists of

The pair of doors 100 serves to open and close the indoor access space, and are positioned between the upper door frame 70 and the side door frame 80 to slide left and right.

The trolley rail 200 is located in the upper direction of the door 100, is coupled to the upper door frame 70 and has an inclination so that the door 100 can descend to the bottom surface, and the angle of the inclined surface is 10 ~ It is 15°.

The gasket 300 is fixed to a pair of doors 100 to block the inflow of toxic gas, and a gasket 300 is fixed at one side and a lower portion of the door 100 of any one of the doors 100 , The gasket 300 is fixed only to the lower part of the other door 100.

The gasket 300 is fixed to one side and the lower and upper door frames 70 and side door frames 80 of a pair of doors 100, respectively, and is formed by rolling a fiber glass fabric so that one side forms a circular shape.

The gasket 300 fixed to the upper door frame 70 is horizontally fixed so as to be in close contact with the inside of the door 100, and the gasket 300 fixed to the side door frame 80 is in close contact with the inside of the door 100. It is preferable to be fixed vertically.

The gasket 300 may be formed of a soft rubber material, preferably a cylindrical fiberglass fabric manufactured by weaving in a plain weave, and a thickness of 0.13 to 0.5 mm. By adopting a cylindrical structure using non-flammable or flame-retardant fiberglass fabric, the shape of the gasket is maintained even at high temperatures, and a sealed space is formed inside the cylindrical gasket, thereby maximizing the flame blocking effect between the inside and outside of the fire door.

The gasket 300 is fixed to the insertion groove 310 having a U-shaped cross section formed in a pair before and after the lower portion of the door 100.

In the insertion groove 310, a magnet 108 (preferably a permanent magnet) is fixed at regular intervals along the length direction of the insertion groove 310, and a metal support member 308 inside the gasket 300 ) Is inserted so that the gasket 300 is fixed to the insertion groove 310 in a magnetic attachment manner to be attached and detached. The support member 308 is configured in a c-shape to fix the gasket by pushing it into the insertion groove inside the gasket, and the width of the support member is separated from the insertion groove by the frequent movement of the automatic door by keeping the gasket pushed firmly. It would be desirable to have a size enough to be inserted in a state that is almost in close contact with the insertion groove in order not to do so.

In addition, in the present invention, the gasket is configured as a pair on both sides of the bracket 400 to provide a double sealing effect, but when moving, the gasket moves away and the gasket descends only when closing to seal the lower part of the fire door. It is manufactured to minimize the possibility of wear due to frictional force caused by the installation of double gaskets.

In addition, by configuring the fixing plate and the bracket, which are necessary elements for guiding the lower end of the fire door, to be concealed in the center by a pair of gaskets, the beauty of the fire door can be clearly seen.

The bracket 400 is formed under the door and moves within the guide rail 500.

The bracket 400 may be directly fixed to the lower portion of the door 100, or the fixing plate 800 may be formed to protrude from the lower portion of the door 100 to fix the bracket 400.

Since the bracket 400 and the fixing plate 800 are located between the gasket 300 and the gasket 300 fixed under the door 100, they do not interfere with the gasket 300 when the door 100 is opened and closed. Will not be.

The bracket 400, in particular, the contact surface 600 configured to contact the guide surface 700 is preferably made of a material having high wear resistance and low sliding friction compared to the fixed plate 800. Therefore, if the degree of wear is severe due to long use, the bracket 400 is separated from the fixing plate 800, so that it can be replaced with a new one, the bracket is separated from the fixing plate when necessary by attaching it to the fixing plate by fixing means such as bolts. It would be desirable to make it possible.

The guide rail 500 is formed to be recessed in the bottom surface and serves to guide the bracket 400 when the door 100 slides.

In addition, an inclined contact surface 600 is provided on a lower side of the bracket 400, and a guide surface 700 is formed in an inclined manner on an upper side of the guide rail 500, and the same It is preferably formed at an angle.

Even if the contact surface is made of a material having a low frictional force, since the contact area in contact with the guide surface is relatively large, as another embodiment of the present invention, a protrusion portion 610 having a protrusion line 612 formed on the contact surface may be further formed. have. The protrusion line 612 is formed long in the moving length direction of the fire door so that the entire contact surface does not contact to minimize the possibility of noise or wear due to friction. It is preferable to form about 1 to 3 lines, and the bracket It would be economical to configure only the protrusion 610 of the above-described material with low frictional force and high wear resistance, and the protrusion 610 may be configured to be detachable to the bracket 400 so that only this part can be replaced when worn. will be.

The operating state of the sealing structure of the present invention airtight fireproof automatic door configured as described above will be described in detail as follows.

First, looking at a state in which the door 100 is opening the access space, as shown in FIGS. 3 to 4, the bracket 400 formed under the door 100 is located in the guide rail 500, the The contact surface 600 formed under the bracket 400 is in close contact with the guide surface 700 formed on one side of the guide rail 500.

In this state, when the door 100 in the open state is slid and closed by the driving of the driving unit 40, the pair of doors 100 slide and move toward the access space, respectively, and any one door 100 The gasket 110 mounted on one side is in close contact with the sealing protrusion formed on one side of the other door 100.

Looking at the process of closing the door 100, the trolley 50 is moved in the direction in which the door 100 is closed by the hanger roller 52 along the trolley rail 200, as shown in FIGS. 5 to 7 At the same time, the bracket 400 is moved along the guide rail 500.

At this time, just before the door 100 is completely closed, the hanger roller 52 mounted on the trolley 50 along the inclined surface of the trolley rail 200 is in the direction of the bottom and the upper door frame 70 and the side door frame 80, that is, It is moved diagonally.

When the door 100 is slid to close the access space as described above, the contact surface 600 formed on the bracket 400 slides diagonally along the guide surface 700 and moves. Since the vertical surface is in close contact with the inner wall surface of the guide rail 500 so that the door 100 is in close contact with the gasket 300, toxic gases and harmful substances are prevented from entering the room.

Here, since the bracket 400 is located between the gasket 300 and the gasket 300, no interference occurs when the gasket 300 is in close contact with the floor surface.

As described above, when the door 100 completely closes the access space, the gasket 300 fixed to the lower portion of the door 100 is in close contact with the bottom surface, and is fixed to the upper door frame 70 and the side door frame 80. As the inner surface of the door 100 is in close contact with the gasket 300, the inflow of toxic gas and unburned gas is effectively blocked.

In addition, the vertical surface and the contact surface 600 of the bracket 400 are sandwiched between the inner wall surface and the guide surface 700 of the guide rail 500, thereby more firmly fixing the door 100, and the door ( 100) is to be prevented from shaking.

As described above, although the present invention has been described by limited embodiments and drawings, terms or words used in the present specification and claims are limited to a conventional or dictionary meaning and should not be interpreted. It must be interpreted as a corresponding meaning and concept.

Accordingly, the embodiments described in the present specification and the configurations shown in the drawings are only one embodiment of the present invention, and do not represent all the technical spirit of the present invention, and thus various It should be understood that there may be equivalents and variations.

100: door
200: trolley rail
300: gasket
310: insertion groove
400: bracket
500: guide rail
600: contact surface
700: guide surface
800: fixed plate

Claims (5)

A pair of doors positioned between the upper door frame and the side door frame to open and close the access space while sliding left and right;
A trolley rail located in the upper direction of the door and coupled to the upper door frame to have an inclined surface;
A gasket fixed to one side and a lower portion of the door, and to the upper and side door frames;
A bracket formed under the door and operating within a sliding rail;
A guide rail formed in a longitudinal direction on a bottom surface corresponding to the door to guide the bracket when the door slides;
An inclined contact surface formed on a lower side of the bracket; And
The sealing structure of an airtight fireproof automatic door, characterized in that the guide surface is formed on one side of the guide rail and is inclined to correspond to the contact surface.
The method according to claim 1,
Among the gaskets, the lower sealing gasket fixed to the lower part of the door is a cylindrical fiberglass fabric gasket inserted into a pair of insertion grooves formed before and after the door,
The sealing structure of the airtight fireproof automatic door, characterized in that the tubular hiberglass fabric gasket is detachably installed by a magnet attachment type structure.
The method according to claim 1,
The sealing structure of an airtight fireproof automatic door, characterized in that the contact surface is in close contact with the guide surface when the door is open, and the vertical surface of the bracket on the other side of the contact surface is in close contact with the inner wall surface of the guide rail when the door is closed. .
The method of claim 3,
When the door is moved from an open state to a closed state, the contact surface slides down in a state that is in close contact with the guide surface, so that the vertical surface is in close contact with the inner wall surface of the guide rail, and when the door is completely closed, the The sealing structure of an airtight fireproof automatic door, characterized in that the vertical surface and the contact surface of the bracket are in close contact with and pinched between the inner wall surface and the guide surface of the guide rail to fix the door.
The method according to claim 1,
A fixing plate protruding downward from the lower portion of the door to fix the bracket is further provided,
The fixing plate is formed between the gasket and the gasket so as not to interfere with the gasket during the opening and closing operation of the door,
The bracket is a sealing structure for an airtight fireproof automatic door, characterized in that the bracket is made of a material having a high wear resistance and low sliding friction compared to the fixing plate.

Images