CZ278997B6 - Fireproof closure - Google Patents

Abstract

Fire isolation consists of active anti-fire layer (521), which is located on internal part of metal layer (52), at which on active anti-fire layer (521) is taken the refractoriness layer (54), on which is located the reflexive metal layer (55). Between reflexive metallic layers (55) from both sides of frame (51) is inside fixed the isolating layer (57) so, that between it and every reflexive metal layer (55) is created the air gap (56). On periphery of frame (51) is fixed the refractoriness layer (58) on which is fixed from internal side periphery reflexive metal layer (59).

Description

CZ 278997 B6

Fire shutter

Technical field

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire closure for use in the building industry to separate fire compartments, such as staircases, as well as other sections, from other building, living and utility areas.

Background Art

The fire closures known so far consist of a rigid frame and rotary wing closures, which in an alternative embodiment consist of two parts. The rigid frame is formed by a special shape profile that is welded in the corners and on the vertical parts - the legs - has a lower hinge part firmly attached to the frame. The frame is provided with anchoring elements. The rotating part consists of a frame on which a metal cover is fixed on both sides. Inside this frame is an insulating material. The swivel is provided with a lock and, if it is made up of two parts, one of them has a lock and the other has a plug at the top and bottom. The disadvantage of such a design is the demanding assembly, but in particular the short time resistance to thermal stress, especially under extreme conditions. During the thermal stress, both the frame and the rotating parts themselves are deformed.

The progressive solution represents MS. Author's Certificate No. 209 198, which consists of a door leaf filled with heat and sound insulation material. The wing is hinged to the door frame by means of hinges. The position of the door leaf is locked by a lever mechanism. The wing structure consists of hollow rectangular profiles in which there is a gear mechanism and a pull lever linkage. Steel rails are attached to the front and rear sides of the beams, which are also holders of the outer sheet metal cladding. The filling is made of silicone rubber, which is followed by a thermal insulation board and a fiber insulation with at least two layers of cement-fiber boards. There is an air gap between the mineral fiber insulation and the cement fiber boards. The disadvantage of this solution is the high material consumption due to the choice of insulating materials, the heavy weight and the complicated, time-consuming and expensive production.

SUMMARY OF THE INVENTION

The above mentioned drawbacks are eliminated by the fire closure according to the invention, consisting of a fixed frame, on which at least one wing provided with a metal layer on both end faces is pivotally mounted by means of hinges and horizontally adjustable, on the outside of which there is an aesthetic layer. Between the height and horizontally adjustable hinges, the sash frame is fixed by a bolt to engage the hole of the rigid frame and a fireproof insulation is placed on the inside of each metal layer within the frame. It is an object of the invention that the fireproofing layer consists of an active fire protection layer which is located on the inside of the metal layer and a refractory layer is placed on the active fire layer, on which the reflective metal layer is placed. An insulating layer is fixed between the reflective metal layers in the frame. An air gap is formed between the insulating layer and each reflective metal layer. A circumferential refractory layer is attached to the periphery of the frame, on which a circumferential reflective metal layer is fixed. The wing of the fire closure is preferably provided with a first hollow overlay on one end of the lock, which is supported on one end face of the second wing, a second overlapping strip is attached to the other end thereof at the lateral side thereof with the plug, which is supported on the other wing front. A refractory material is disposed within each of the hollow overlapping strips. The advantage of such a design is the stability of the shape under extreme thermal stresses. Overview, illustrations on the drawing

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows a fixed frame of a fire closure, FIG. 2 'is a side view of a rigid frame showing hinges, FIG. 3 is a cross section of a rigid frame, FIG. Fig. 5 is a cross-sectional view of a double wing, the frame of which consists of a closed profile; Fig. 6 shows a sequence of layers in a section of a wing; and Fig. 7 is a detail FIG. 4 shows a sequence of layers around the periphery of the wing. EXAMPLES OF THE INVENTION

The fixed frame of the fire closure consists of the webs 1, 2a of the beams 10, 20, 3 of an open C-shaped profile which are mutually firmly connected. The connection may alternatively be detachable. The rigid frame is formed by a hinge web 1 and a locking web 2, which in the upper part is connected by a hinged beam 3 and in the lower part by a connecting rod 4. The hinge web 1 consists of an open-shaped beam JLO, to which it is detachably connected from the inside. seat trim 3Λ. At least two vertically and horizontally adjustable hinges 12 are fastened to the beam 10 on one side. The hinge 12 consists of a body 121 from which a rotary part 122 protrudes perpendicularly. the nut 124 is provided with a cover 125. At the hinge point 12, the beam 10 is connected by a reinforcement 126. The hinge web 1 and the lock web 2 are provided with anchoring elements 127, 25. The inner side of the girder 10 is covered by a cover 129. The locking girder 2 consists of a girder 20 on which a second abutment flange 21 is detachably mounted on the inside, the girder 20 being provided with a bolt hole 22 and a locking aperture 23 provided with a cover 24. The casing beam 3 is releasably provided with a second bearing flange 31, with a reinforcement pad 32 adjacent to the corner. In the case of larger rigid frames, in particular double wings, the casing beam 3 is provided with a cover 33. · Wing 5 consists of a frame 51 on which a metal layer 52 is attached on both sides. The frame 51 consists of two embodiments, from a closed profile and an open profile, predominantly U-shaped. In the case of a closed profile frame 51, each metal layer 52 is in the form of a box onto which the active fireproof layer 521 is attached. On the outside, each metal layer 52 is provided with an aesthetic layer 53 made of conventional paints, optionally of comaxite, alternatively consists of artificial leather. From the inside of each metal layer 52 is -2-

Claims (2)

The active fire-resistant layer 521 is followed by a refractory layer 54 and a reflective layer 55. An insulating layer 57 is attached between the reflective metal layers 55 in the frame 51, and an air gap 56 is formed between the reflective metal layers 155. If the frame 51 is formed of an open U-shaped profile, the sequence of layers is identical. however, the f > 2 metal layer is flat and the < 50 mounting brackets overlap. The periphery of the wing 5 is a circumferential refractory layer 58 on which a circumferential reflective metal layer 59 is attached. In the case of double wings, one wing 5 is provided with a lock 50 and a second plug 501, provided with a first and a second vertical hollow overlay 502 and 503 s. The frame 51 is provided with hinges 512 in its hinge web 511, between which a pin 513 extends in the closed position to the aperture 128 on the hinge web support 10. self-closing device, in the lower part of the closure lever 514. Industrial applicability The fire closure according to the invention can be used in particular as protection of values in the event of a fire, but also as a noise and smoke barrier. 1. A fire shutter consisting of a fixed frame on which at least one wing is pivotably mounted by means of hinges, which are vertically and horizontally, provided with a metal layer on both end faces, on the outside of which an aesthetic layer is disposed, between The hinges are fixed to the wing frame by a bolt for engagement with the opening of the rigid frame and a fireproof insulation is placed on the inside of each metal layer, characterized in that the fire insulation of the wing (5) consists of an active fire layer (521) which is located on the inner side of the metal layer (52) and a refractory layer (54) is placed on the active fire-resistant layer (521), on which the reflective metal layer (55) is placed, in the frame between the two reflective metal layers (55) 51) an insulating layer (57) fixed therebetween and an air gap (56) is formed with each reflective metal layer (55), and a circumferential refractory layer (58) is fixed over the periphery of the frame (51) to which the circumferential reflective metal layer (59) is fixed. Fire shutter according to claim 1, characterized in that the wing (5) is provided with a first hollow overlay (502) on one face at its side with a lock (50) which is supported on one face of the other wing, a second hollow overlapping strip (503) is attached to the second end side of the wing (5) on the other side of the hinge side (50) and a refractory blanket (502, 503) is placed inside the hollow overlapping strips (502, 503) material (5021). 4 drawings -3-