CN215054097U

CN215054097U - Window fire-proof isolation area heat preservation node structure

Info

Publication number: CN215054097U
Application number: CN202121277517.7U
Authority: CN
Inventors: 孟现伟; 李敖; 戚顺航; 李超
Original assignee: Qicai Construction Development Co ltd
Current assignee: Qicai Construction Development Co ltd
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2021-12-07
Anticipated expiration: 2031-06-07

Abstract

The utility model belongs to the technical field of building outer wall fire prevention insulation construction and specifically relates to a window fire prevention median heat preservation node structure, its fire prevention median are the type of falling T and set up in the window top, and the fire prevention median corresponds the window position setting along longitudinal extension's part, by interior to outer basic unit's wall body, screed-coat, rock wool strip, turn over a packet reinforcing net, plaster mortar and finish coat in proper order, the rock wool strip is arranged along the window horizontal crossing circle, installs the molding polyphenyl board around the rock wool strip, and the molding polyphenyl board sets up in same vertical plane with rock wool strip contact, and the packet reinforcing net is turned over to the outer cladding of rock wool strip. The utility model directly arranges the fireproof isolation belt above the window, effectively isolates the direct contact between the window and the heat insulation material, and the fireproof isolation belt is arranged in an inverted T shape, thereby avoiding the upward spread of fire and the combustion supporting of the heat insulation material, and improving the fireproof effect of the external wall heat insulation system; the anchor bolts, the angle steel supporting pieces and the alkali-resistant glass fiber net are used for reinforcing, so that the reliability and durability of the structure are improved.

Description

Window fire-proof isolation area heat preservation node structure

Technical Field

The utility model belongs to the technical field of building outer wall fire prevention insulation construction and specifically relates to a window fire prevention median heat preservation node structure.

Background

The external heat-insulating system of the thin plastered outer wall of the polyphenyl plate is one of the mainstream technologies for energy conservation of the existing wall body, but the fire prevention problem becomes the most important problem in the application process because the combustion performance of the material is B1 grade. In order to avoid the situation that fire spreads to ignite materials at other positions to cause greater life and property loss when a fire breaks out, a fireproof isolation belt is required to be arranged when B1-level heat insulation materials are adopted according to the requirement of GB50016-2014 fireproof code for building design. At present, the common practice of the fireproof isolation belt is to arrange a fireproof heat preservation layer of a horizontal cross ring by adopting rock wool strips within the range of 500mm of the upper opening of a window. According to building fire prevention application tests and the situation of a fire scene, after a fire disaster occurs in a building room, the fire disaster reaches a certain degree, a deflagration phenomenon can be generated, flame can jump out from a window position and quickly and upwards continuously spread, and due to the fact that a part of B1-grade heat-insulating materials are arranged between a fire-proof isolation belt and a window in the conventional method, the fire disaster on the building can be easily transmitted to a floor above the fire-proof isolation belt to be supported to a certain degree, and the fire disaster situation is aggravated.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above problem, a window fire barrier heat preservation node structure is provided, the technical scheme of its adoption as follows:

the utility model provides a window fire barrier heat preservation node structure, fire barrier are the type of falling T and set up in the window top, and fire barrier corresponds the window position along longitudinal extension's part and sets up, by interior to exterior in proper order for basic unit's wall body, screed-coat, adhesive, rock wool strip, turns over a packet reinforcing net, rendering coat mortar and finish coat, the rock wool strip is arranged along window suitable for reading horizontal crossing circle, and the installation is moulded around the rock wool strip polyphenyl board, and moulds the polyphenyl board and set up in same vertical face with rock wool strip contact to ground, and the window suitable for reading sets up turns over a packet reinforcing net, turn over a packet reinforcing net one end and fix and set up between rock wool strip and screed-coat, and the rendering coat mortar is impressed after the rock wool strip bottom is walked around to the other end.

Preferably, the three adjacent sides of the turning-over reinforcing net are provided with local reinforcing nets in a relatively grounding manner, the local reinforcing nets comprise vertical reinforcing nets connected above the turning-over reinforcing nets and horizontal reinforcing nets on the left side and the right side, fireproof isolation belts extend out of the outer edges of the local reinforcing nets to cover the molded polystyrene board, and the overlapping size of the local reinforcing nets and the molded polystyrene board in each direction is not less than 100 mm.

Preferably, the rock wool strip includes first rock wool strip and the second rock wool strip of adjacent setting, first rock wool strip sets up and highly is 300mm along window upper shed horizontal intersection, and the second rock wool strip sets up in the window top, with the window with wide and highly be 600 mm.

Preferably, the length of the ladle turning reinforcing net is 400mm more than the thickness of the rock wool strips, and the length of the ladle turning reinforcing net arranged between the rock wool strips and the leveling layer is not less than 100 mm.

Preferably, the glazed hollow bead heat-insulating slurry is constructed at the upper opening of the window, the glazed hollow bead heat-insulating slurry is arranged below the rock wool strips, and the gradient of the bottom surface is not less than 5%.

Preferably, anchor bolts are fixedly arranged on the outer side surfaces of the turning and wrapping reinforcing net, the local reinforcing net and the molded polystyrene board and are arranged outside the range of 150mm of the upper opening of the window.

Preferably, a Z-shaped angle steel bearing piece is embedded in the upper opening of the window, one end of the angle steel bearing piece and the base layer wall body are poured into a whole, and the other end of the angle steel bearing piece is supported at the bottom of the rock wool strip.

Preferably, an alkali-resistant glass fiber net is laid in the finishing mortar, and the alkali-resistant glass fiber net is continuously laid at the position of the local reinforcing net, or the lap joint length of the alkali-resistant glass fiber net and the local reinforcing net is not less than 100 mm.

On the basis of the scheme, the rendering coat mortar comprises two layers, the alkali-resistant glass fiber net is arranged between the two layers of rendering coat mortar, the thickness of the first layer of rendering coat mortar is 2-3mm, the thickness of the second layer of rendering coat mortar is 1-2mm, and the total thickness of the two layers of rendering coat mortar is 3-5 mm.

The utility model has the advantages that: the fireproof isolation belt is directly arranged above the window, so that the window is effectively isolated from being directly contacted with the organic heat insulation material, the fireproof isolation belt is arranged in an inverted T shape, upward spread of fire and combustion supporting of the organic heat insulation material are avoided, and the fireproof effect of the external wall heat insulation system is improved; the anchor bolts, the angle steel supporting pieces and the alkali-resistant glass fiber net are used for reinforcing, so that the reliability and durability of the structure are improved.

Drawings

FIG. 1: the utility model discloses a schematic diagram of the position structure of the fireproof isolation belt;

FIG. 2: FIG. 1 is a schematic sectional view taken along line 1-1;

FIG. 3: FIG. 1 is a schematic cross-sectional view taken at 2-2;

FIG. 4: the utility model discloses local reinforcing net mounted position schematic diagram.

Detailed Description

The invention will be further explained with reference to the following figures and examples:

in the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 3, a window fireproof isolation belt heat preservation node structure, the fireproof isolation belt is arranged above a window in an inverted T shape, the part of the fireproof isolation belt extending along the longitudinal direction is arranged corresponding to the position of the window, a base layer wall 11, a leveling layer 12, an adhesive 13, a rock wool strip 15, a turning reinforcing net 21, a coating adhesive 16 and a facing layer 17 are sequentially arranged from inside to outside, the thickness of the leveling layer 12 is 10mm to 20mm, the rock wool strip 15 is horizontally arranged along the upper opening of the window in a crossed manner, a molded polystyrene board 14 is arranged around the rock wool strip 15, the molded polystyrene board 14 and the rock wool strip 15 are arranged in the same vertical plane in a contact manner, and the rock wool strip 15 and the molded polystyrene board 14 are bonded on the leveling layer 12 through the adhesive 13. The rock wool strip 15 includes first rock wool strip and the second rock wool strip of adjacent setting, first rock wool strip sets up and highly is 300mm along window upper shed horizontal intersection, and the second rock wool strip sets up in the window top, with the same width of window and highly be 600mm, and the second rock wool strip is for following longitudinal extension's part in the type of falling T structure promptly, can prevent effectively that flame from scurrying out and upwards spreading from the window.

The window upper opening is provided with a turning-over reinforcing net 21 for enhancing the durability of the structure and assisting the rock wool strips 15. The length of turning over a packet reinforcing net 21 is 400mm more than the thickness of rock wool strip 15, turn over a packet reinforcing net 21 one end and fix and set up between rock wool strip 15 and screed 12, the packet reinforcing net 21 length of turning over that sets up between rock wool strip 15 and screed 12 is no less than 100mm, and the other end is walked around rock wool strip 15 bottom and is impressed rendering coat mortar 16. As shown in fig. 4, three adjacent sides of the ladle reinforcing net 21 are provided with local reinforcing nets in a relatively grounded manner, and each local reinforcing net comprises a vertical reinforcing net 23 connected above the ladle reinforcing net 21 and horizontal reinforcing nets 22 at the left side and the right side, a fireproof isolation strip extends out of the outer edge of each local reinforcing net to cover the molded polystyrene board 14, and the overlapping size of each local reinforcing net and the molded polystyrene board 14 in each direction is not less than 100 mm. An alkali-resistant glass fiber net is laid in the plastering mortar 16, and the alkali-resistant glass fiber net is continuously laid at the position of the local reinforcing net or the lap joint length of the alkali-resistant glass fiber net and the local reinforcing net is not less than 100 mm. The rendering coat mortar 16 comprises two layers, the alkali-resistant glass fiber net is arranged between the two layers of rendering coat mortar 16, the thickness of the first layer of rendering coat mortar 16 is 2-3mm, the second layer of rendering coat mortar 16 is applied after the first layer of rendering coat mortar 16 is slightly dry and hard, the thickness of the second layer of rendering coat mortar 16 is 1-2mm, and the total thickness of the two layers of rendering coat mortar 16 is 3-5 mm.

After the turning-over reinforcing net 21, the local reinforcing net and the molded polystyrene board 14 are constructed, the anchor bolt 31 is fixedly installed on the outer side surface for fixing the outer wall structure. In order to prevent the anchor bolt 31 from penetrating and damaging the wall, the anchor bolt 31 is arranged outside the range of 150mm of the upper opening of the window. As shown in fig. 1, pre-buried zigzag angle steel supporting piece 32 of window upper shed, angle steel supporting piece 32 one end is poured as an organic whole with basic unit's wall body 11, and the other end bearing is in the 15 bottoms of rock wool strip, for rock wool strip 15 provides the support, prevents that rock wool strip 15 from taking place vertical slip under the action of gravity. The 1-2 angle steel supports 32 are optionally arranged according to the size of the window. The glazed hollow bead heat-insulating slurry 33 with the thickness of 20mm is constructed at the upper opening of the window, the glazed hollow bead heat-insulating slurry 33 is arranged below the rock wool strips 15, the gradient of the bottom surface of the glazed hollow bead heat-insulating slurry is not less than 5%, and the rainwater backflow and leakage are prevented.

The utility model discloses a structure is applicable to the outer wall at door and other positions equally.

The present invention has been described above by way of example, but the present invention is not limited to the above-mentioned embodiments, and any modification or variation based on the present invention is within the scope of the present invention.

Claims

1. A window fireproof isolation belt heat preservation node structure is characterized in that a fireproof isolation belt is arranged above a window in an inverted T shape, the part of the fireproof isolation belt extending along the longitudinal direction is arranged corresponding to the position of the window, and sequentially comprises a base layer wall body (11), a leveling layer (12), an adhesive (13), a rock wool strip (15), a turning-over reinforcing net (21), a plastering mortar (16) and a finishing coat (17) from inside to outside, the rock wool strips (15) are arranged along the horizontal intersection of the upper opening of the window, molded polystyrene boards (14) are arranged around the rock wool strips (15), the molding polystyrene board (14) is arranged in the same vertical plane in a contact way with the rock wool strip (15), the upper opening of the window is provided with a turning and reinforcing net (21), one end of the ladle turning reinforcing net (21) is fixedly arranged between the rock wool strip (15) and the leveling layer (12), and the other end of the ladle turning reinforcing net is pressed into the plastering mortar (16) after bypassing the bottom of the rock wool strip (15).

2. The window fire-retardant isolation belt heat-preservation node structure is characterized in that local reinforcing nets are oppositely and grounded on three adjacent sides of the turning-up reinforcing net (21) and comprise vertical reinforcing nets (23) connected above the turning-up reinforcing net (21) and horizontal reinforcing nets (22) on the left side and the right side, the outer edges of the local reinforcing nets extend out of the fire-retardant isolation belt to cover the molded polystyrene board (14), and the overlapping size of the local reinforcing nets and the molded polystyrene board (14) in all directions is not less than 100 mm.

3. The window fireproof isolation belt heat preservation node structure of claim 1, wherein the rock wool strips (15) comprise a first rock wool strip and a second rock wool strip which are adjacently arranged, the first rock wool strip is arranged along a horizontal intersection of the upper opening of the window and has a height of 300mm, and the second rock wool strip is arranged above the window and has the same width as the window and a height of 600 mm.

4. The insulation node structure of the fireproof isolation belt of the window according to claim 1, wherein the length of the ladle-turning reinforcing net (21) is 400mm more than the thickness of the rock wool strip (15), and the length of the ladle-turning reinforcing net (21) arranged between the rock wool strip (15) and the leveling layer (12) is not less than 100 mm.

5. The window fireproof isolation belt heat preservation node structure of claim 1, wherein a glazed hollow bead heat preservation slurry (33) is constructed at the upper opening of the window, the glazed hollow bead heat preservation slurry (33) is arranged below the rock wool strips (15), and the gradient of the bottom surface is not less than 5%.

6. The window fireproof isolation belt heat preservation node structure of claim 2, wherein an anchor bolt (31) is fixedly installed on the outer side surface of the turning-over reinforcing net (21), the local reinforcing net and the molded polystyrene board (14), and the anchor bolt (31) is arranged outside the range of 150mm of the upper opening of the window.

7. The window fireproof isolation belt heat preservation node structure as claimed in claim 1, wherein a Z-shaped angle steel support (32) is embedded in the upper opening of the window, one end of the angle steel support (32) is integrally cast with the base layer wall (11), and the other end of the angle steel support is supported at the bottom of the rock wool strip (15).

8. The insulating node structure of window fireproof isolation belt according to claim 2, wherein the finishing mortar (16) is laid with alkali-resistant glass fiber net, and the alkali-resistant glass fiber net is laid continuously at the position of the local reinforcing net, or the overlapping length of the alkali-resistant glass fiber net and the local reinforcing net is not less than 100 mm.

9. The window fireproof insulation belt thermal insulation node structure of claim 8, wherein the coating mortar (16) comprises two layers, the alkali-resistant glass fiber net is arranged between the two layers of coating mortar (16), the thickness of the first layer of coating mortar (16) is 2-3mm, the thickness of the second layer of coating mortar (16) is 1-2mm, and the total thickness of the two layers of coating mortar (16) is 3-5 mm.