KR970007701B1 - Fireproof doors - Google Patents

Abstract

None.

Description

Improved fire doors

1 is a front view of the fire door of the present invention.

2 is a rear view of FIG.

3 is a partial cross-sectional view cut according to III-III of FIG.

4 is a partial cross-sectional view taken in accordance with IV-IV of FIG.

Figure 5 is an enlarged cross-sectional view of the fire protection facing portion according to the present invention.

6 is a front view of a modified embodiment according to the invention with two doors.

7 is a partial cross-sectional view taken in accordance with VI-VI of FIG.

8 is a front view of a modified embodiment of FIG. 1 with a shutter.

9 is a partial cross-sectional view taken in accordance with IX-IX of FIG.

FIG. 10 is a front view of the modified embodiment of FIG. 6 with a shutter.

* Explanation of symbols for main parts of the drawings

1: door frame 2: door

6: facing 7: insulation

8: steel sheet 10: web

12: structure frame 13: outer frame

15: edge of pacing 31: fixed point

40: sealing joint 41: metal plate

The present invention relates to a fire door in the form of a door frame and a door that is rotated and fire resistant to the door frame, the door having two vertically parallel square facings having a structural frame and an insulation disposed therebetween. It can be seen that it is of particular interest as a fire door in an industrial building that is not exclusively used but must have a fire protection of more than one hour.

These may be particularly useful in the conventional or nuclear industry.

Various types of firewalls consisting of one or several letters or panels are well known. Manufacturers of these doors have compromised the mechanical strength of the doors and have maximized fire resistance.

In conventional fire doors, attempts have been made to reduce metal parts so that heat transfer does not occur. As a result, the doors became quite vulnerable.

The present invention provides a fire door that satisfies the requirements of better use than a conventional fire door, and in particular, it is possible to open and close a large number of times (approximately 600,000 times) without being damaged while maintaining a safe fire property with structural safety. Provide a fire door with high mechanical strength.

According to the present invention, each facing of the improved form of the fire door of the known type is composed of a composite web formed of two steel sheets and a hydraulic fixing agent and a reinforcing fiber, wherein the web is disposed between the two steel sheets and each facing is provided. The web and the web are fixed to each other and each facing is detachably fixed to the structural frame formed of metal parts, and the door also provides a fire door characterized in that it consists of an outer frame covering the edge of the facing separated by a fire joint. It is done.

This type of fire door seems to cause significant heat transfer and therefore does not seem to attract special attention to those skilled in the art.

Indeed, surprisingly, the use of the stated form of pacing combined with the outer frame away from the edge of the pacing by the fire joint ensures that the door is in good fire protection and is capable of opening and closing a lot more times than the previous fire door. It is possible to manufacture a door having a mechanically strong structure.

Another important advantage is the possibility of eliminating the facing fixed to a rigid framework. This advantage significantly reduces the manufacturing cost of installed fire doors. The need to place fire doors early on the construction site or at work often results in the doors being replaced at the end of the work day. If a part of the door is damaged during operation or use, the pacing is detachable, eliminating the need to exchange doors and thus lower costs.

Preferred embodiments of the invention consist of one and / or other of the following devices.

The insulation arranged between the facings is a ceramic fiber sheet.

By using this sheet, there is no need to use overlaps arranged inside the door.

These overlaps form heat passages when combined poorly, which is a drawback of the prior art fire doors that use rock wool panels.

The doors are formed of a tetrahedron rigid frame. In the prior art, the door frame is generally formed by a pedestal-like structure in which three sides and a bottom are mounted on a concrete floor. The shape of the door frame of this structure has many drawbacks, such as being impossible to change when the door frame is placed and relying on the horizontal tolerance (1 centimeter) of civil engineering for the door to be fitted with mechanical tolerances (millimeters).

Since the gap between the door frame and the door should be very small, the tetrahedron rigid frame has certain advantages.

The door consists of a single lock stop that is to be combined with the door frame so that the door remains closed in the door frame in case of fire. This structure allows for good mechanical resistance of the fire door of the present invention and thus eliminates the need for two additional break points provided unilaterally to a conventional fire door.

Facing composite webs are made of cement reinforced by cellulose fibers that exclude fibers composed of asbestos.

Two steel sheets are made of galvanized steel with holes having bent edges towards the web to fix the steel sheet to the composite web during the facing manufacturing.

This preparation is preferably done before the web is solidified while pressing the steel plates toward the webs.

The pacing is fixed to the frame by a screw whose head is protected by an outer frame covering the edge of the face.

A fire door consists of a shutter having the same structure as the fire door.

The door frame consists of joints located between the door and the door frame and protected by a metal plate.

The invention will be clearly understood from the following description of several embodiments given as examples which do not suggest the scope of the invention.

FIG. 1 shows a front view of the present invention having a door frame 1 and a door 2 associated with the door frame and having fire resistance. For example, doors are designed to be fire resistant for one and a half hours and flame resistant for three hours.

The door 2 pivots around a conventional hinge 3 with bearings. The door has a handle 4 and a door closure 4a on the front side.

2 shows the back of the present invention, which is comprised of the well-known asphyxiation safety device 5. The structure of the fire door can be clearly seen from the cross section shown in FIG. The door 2 consists of two vertically parallel rectangular facings 6 with a thermal insulation 7 formed between ceramic fiber sheets. For example, the sheet is made from fibers well known under the name "kerlane", which has a high melting point (1700 ° C) and low thermal conductivity.

Each facing consists of a web 10 and two steel sheets 8 synthesized from a composite made from a hydraulic binder 10 'and a reinforcing oil 10 " It can be seen well from Figures 3 and 4, especially Figure 5. The hydraulic binder is preferably formed of cement and the reinforcing fibers are preferably formed of asbestos glass cellulose fibers. In the manufacture of facings, the two steel plates are galvanized, punched and pressed to the web which has not yet solidified, when the web is solidified, the web 10 firmly holds the steel plate 18. The holes 9 in the steel plate 8 ) Is obtained by stamping such that the edges 9 'bend towards the web 10 so that the plates can be fixed to the web itself, each facing 8 having a frame 12 surrounding the insulation 7. ) Is detachably fixed by a screw (11). This framework was formed by two horizontal channel sections and two vertical channel sections.The screws 11 for fastening the facing to the framework formed by the channel sections are provided with a sufficient number to provide an even distribution of force. For example, ten or more in the longitudinal direction and four or five in the width direction)

The door 2 also consists of an outer frame 13 formed by a galvanized metal angle or channel portion 14. This outer frame covers the edge 15 of the facing and is separated from the facing by a joint 16 having a very high thermal insulation which is well known under the name "KERLANE PAPER".

The door frame 1 of the fire door of the present invention is formed of a rigid rectangular tetrahedron having a bottom surface 20 (FIG. 4) coupled to a right angle member 21 (FIG. 3) formed by an angle steel and a crosspiece 22. .

When the door frame is mounted, the water frame is placed on the excavation 23 provided in the concrete floor 24 and laid flat. The stationary and centering device 25 is provided on top of the crosspiece 22 that enters the excavation provided in the concrete wall 26. In the closed position the door comes into contact with the angle steel 27 welded to the crosspiece and the right angle member through the elastic joint 28.

These joints of anti-handling devices (for example, in the form well known under the "HELIOS" trademark for revolving doors) allow for sealing and cushioning between the contact surfaces.

In FIG. 3, the groove 30 is formed in the heat insulating material 7 of the door, the conventional lock 30a is inserted therein, the handle 4 of the lock is shown on one side, and the asphyxia safety device 5 is on the other side. Has been shown. The lock has a bolt 31 engaged with the door frame 2 in the bolt receiving groove 32 when the door is closed to the door frame. The lock is placed in the enclosure without contact with the lock box 33 by the " KERLANE Paper " sheet 34. In FIG. 3 the lock 30a is simply shown by the space indicated by the broken line.

The door remains closed by a single point formed by the bolts of the lock, without the need to install additional lockout points at the top and bottom of the door.

In FIGS. 3 and 4 the joint 40 is a refractory and expanding joint that expands to block the space between the door and the frame to prevent passage of flame, gas and smoke in response to heat. These joints are protected by a metal plate 41 bonded to the door in front of the joint in the direction of opening the door. These metal plates protect these joints from external shocks that may occur when opening and closing the fire doors.

6 shows a fire door according to the invention with one door 50 closed and the other door 51 having two doors 50, 51 identical to the doors described above. The closed door includes a known occlusion device (FIG. 7) and has a lockout point for the door frame at the top 53 and bottom 54 of the door. When the door is closed, the open door pushes the closed door into its outer frame. Between the door and the door frame (FIGS. 3 and 4) there is provided an elastic joint 55 of similar type to the joint 28 used in one door.

FIG. 8 shows a fire door according to the invention consisting of the same shutter 56 as the structure of the door of the fire door according to the invention, as can be clearly seen in the cross section of FIG.

A device 57 is provided with a variable ring 58 that locks this shutter in a closed position or in another position, which can encircle a known hinge 59 which is secured to the door frame 1.

10 schematically shows a fire door according to the invention comprising two doors and consisting of a shutter of the same length as the width of the two doors.

The present invention is not particularly limited to the above-described embodiments, and many modifications may be made by those skilled in the art, and particularly include a fire door having the following structure.

-Fire doors with doors with several locking stops, which are combined with the door frames to securely close the doors to the door frames;-insulation arranged between the facings; Fire doors having a facing having a web of composite material different from reinforced cement, for example glass fiber reinforced concrete, or having a steel plate fixed to the web by nails or other means other than those specifically described herein.

Claims (5)

It consists of a door (2) that is fireproof and consists of two vertically facing rectangular faces (6), which are strongly fixed to each other by the door frame (1) and the structure frame (12) and insulated (7) arranged. In the fire door, each facing 6 consists of two steel plates 8 and a web 10 made of a composite material formed of a hydraulic fixing agent and a reinforcing fiber, the web 10 being disposed between the two steel plates and It is fixed to each other with a steel plate, each facing 6 is detachably fixed to the structural frame 12 formed of a metal member, the door surrounds the edge 15 and the structural frame of the facing 6 and has a fire-resistant insulating joint 16 The fire door, characterized in that consisting of the outer frame (13) separated from the pacing (6) and the structural frame by. 2. Fire door according to claim 1, characterized in that the heat insulator (7) disposed between the facings is a ceramic fiber site. The fire door according to claim 1, characterized in that the door (2) comprises a single chain stop point (31) which engages with the door frame to ensure that the door is closed on the door frame. 2. The composite web 10 of the facing 6 is made of cement reinforced with asbestos glass fiber, the two steel plates are made of galvanized steel and the two steel plates are provided with the steel sheets in the manufacture of the facing. A fire door, characterized in that a hole (9) is formed having an edge bent towards the web to be secured to the composite web. The door frame (1) according to claim 1, wherein the door frame (1) is protected by a metal plate (41) glued to the door frame (1) in front of the sealing joint (40) in the direction of opening the door and adhered to the door frame between the door frame (1) and the door (2). Fire door characterized in that it comprises a sealed joint (40).

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