CN212296121U

CN212296121U - Bridge cut-off second grade fire window

Info

Publication number: CN212296121U
Application number: CN202020365540.0U
Authority: CN
Inventors: 孙玉民; 赵培影; 于永泽
Original assignee: Zhengzhou Hengmeida Glass Processing Co ltd
Current assignee: Zhengzhou Hengmeida Glass Processing Co ltd
Priority date: 2020-03-21
Filing date: 2020-03-21
Publication date: 2021-01-05
Anticipated expiration: 2030-03-21

Abstract

The utility model discloses a bridge cut-off second grade fire window relates to window technical field, including the window frame, the window frame skeleton is hollow structure, and the cavity intussuseption is filled with the thermal-insulated stopping of fire prevention, is provided with first casement, second casement and third casement in the window frame respectively, and equal fixed mounting has cavity grout fire prevention glass in first casement, second casement and the third casement, first casement fixed mounting is in the window frame top. Has the advantages that: the window body material uses a bridge-cut-off aluminum profile, so that the problems of no heat energy transmission bridge cut-off and poor energy-saving effect of the traditional B-class fireproof window formed by bending steel are solved; the U-shaped steel lining is arranged as an internal framework system, and the light heat-insulating filler is filled in the cavity, so that the fireproof performance, the heat-insulating performance and the stability of the window frame are improved; through setting up door and window sealing strip and fire prevention inflation sealing member and improving holistic leakproofness, be favorable to preventing flame from the conduction of the face of catching a fire to the face of being shaded from the fire, improve fire behavior.

Description

Bridge cut-off second grade fire window

Technical Field

The utility model relates to a window technical field especially relates to a bridge cut-off second grade fire window.

Background

The B-level fireproof window can meet the requirements of fire resistance stability and fire resistance integrity together with a frame within a certain time, the performance of the fireproof window depends on two parts, namely glass and a window frame, the failure of any one part can cause the fireproof window to lose effect, the window frame of the existing fireproof window is formed by bending steel materials, the inner side and the outer side of the window do not have the blocking effect of heat energy transfer, the heat transfer coefficient K value of a finished product generally exceeds 3.2 (the K value is less than or equal to 2.7 according to the requirements of normal civil buildings), and the energy-saving requirements of the civil buildings cannot be met; meanwhile, the surface flatness of the steel section is poor, and the steel section is easy to rust and corrode.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a bridge cut-off second grade fire window in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

a bridge cut-off class B fireproof window comprises a window frame, wherein the window frame is of a hollow structure, a steel lining is arranged in a cavity, the fireproof frame is formed by welding, novel light, fireproof, heat-insulation and heat-preservation filling materials are filled in the cavity, a first sash, a second sash and a third sash are respectively arranged in the window frame, hollow grouting fireproof glass is fixedly arranged in the first sash, the second sash and the third sash, the first sash is fixedly arranged above the window frame, the second sash and the third sash are respectively arranged below the first sash, the second sash is fixedly connected with the window frame, the third sash is connected with the window frame through hinges, one side of the third sash, away from the hinges, is provided with a window handle, the upper side and the lower side of the window handle are provided with inclined bolt tongues fixedly arranged on the third sash, the upper end of the third sash is inlaid with a sash opening and closing control device, two sides of the third sash are provided with door and window sealing strips, fireproof expansion sealing elements are embedded at the joints of the window frame and the first sash, the second sash and the third sash.

Preferably, the hollow grouting fireproof glass consists of two pieces of plate glass and a connecting strip, wherein the connecting strip is positioned at the outer edge of the plate glass and is used for connecting the two pieces of plate glass, so that a cavity is formed between the two pieces of plate glass, and the cavity is filled with fireproof liquid.

Preferably, the thickness of the flat glass is 5mm, and the distance between the two flat glasses is 15 mm.

Preferably, the joints of the hollow grouting fireproof glass and the first sash, the second sash and the third sash are coated with fireproof glue.

Has the advantages that: the utility model effectively prevents the indoor-outdoor conduction of heat energy by using the bridge-cut aluminum material, achieves the energy-saving effect, ensures that the heat transfer coefficient K of the finished window is less than or equal to 2.7, and improves the heat-insulating property and stability of the window frame by arranging the fireproof heat-insulating filler and the U-shaped steel lining; through setting up door and window sealing strip and fire prevention inflation sealing member and improving holistic leakproofness, be favorable to preventing the conduction of flame from the fire-facing to the back of the body fire face, improve fire behavior, reached the fire prevention standard of second level window, guaranteed its fire prevention function simultaneously, effectively improved his energy-conservation nature and outward appearance effect.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of a bridge cut-off second-class fire window of the present invention;

fig. 2 is a sectional view taken along the line a-a of the second-class fire window of the present invention;

FIG. 3 is a sectional view taken along line B-B of the second-class fire window of the present invention;

fig. 4 is a C-C sectional view of a bridge cut-off second-level fire window of the present invention.

The reference numerals are explained below:

1. a window frame; 201. a first sash; 202. a second sash; 203. a third sash; 3. hollow grouting fireproof glass; 4. a window handle; 5. a window sash opening and closing control device; 6. a hinge; 7. door and window sealing strips; 8. fireproof heat-insulating filling material; 9. fireproof glue; 10. a fire resistant intumescent seal; 11. latch bolt with oblique tongue.

Detailed Description

The technical scheme of the invention is further explained by combining the attached drawings as follows:

as shown in fig. 1-4, a bridge cut-off class b fireproof window comprises a window frame 1, wherein the window frame 1 is made of aluminum alloy, the window frame 1 is made of steel material, the processing is more convenient, the flatness of the finished product is good, the framework of the window frame 1 is of a hollow structure, a U-shaped steel lining is fixedly installed in a cavity of the window frame 1, the melting point of the aluminum alloy is lower than that of the steel material, the U-shaped steel lining is added to reinforce the window frame 1 and prevent the window frame 1 from deforming in a high-temperature environment, a fireproof heat-insulating filling material 8 is filled in the cavity of the window frame 1, the fireproof heat-insulating filling material 8 is filled in the window frame 1 to form a bridge cut-off, heat continuous conduction is reduced, heat insulating performance is improved, a first sash 201, a second sash 202 and a third sash 203 are respectively arranged in the window frame 1, hollow grouting fireproof glass 3 is fixedly installed in, the first sash 201 is fixedly arranged above the window frame 1, the second sash 202 and the third sash 203 are respectively arranged below the first sash 201, the second sash 202 is fixedly connected with the window frame 1, the third sash 203 is connected with the window frame 1 through a hinge 6, one side of the third sash 203, which is far away from the hinge 6, is in screw connection with a window handle 4, the upper side and the lower side of the window handle 4 are provided with latch bolts 11 which are fixedly arranged on the third sash 203, the upper end of the third sash 203 is embedded with a sash opening and closing control device 5, the sash opening and closing control device 5 is used for manually opening and closing the sash, door and window sealing strips 7 are embedded on two sides of the third sash 203, the door and window sealing strips 7 are used for filling and sealing a gap between the third sash 203 and the window frame 1, fireproof expansion sealing elements 10 are embedded at the joints of the window frame 1 and the first sash 201, the second sash 202 and the third sash 203, the fireproof expansion sealing elements, the hollow grouting fireproof glass 3 is composed of two pieces of plate glass and a connecting strip, the connecting strip is located on the outer edge of the plate glass and is used for connecting the two pieces of plate glass, a cavity is formed between the two pieces of plate glass, fireproof liquid is filled in the cavity, the thickness of the plate glass is 5mm, the distance between the two pieces of plate glass is 15mm, and the joints of the hollow grouting fireproof glass 3 and the first window sash 201, the second window sash 202 and the third window sash 203 are coated with fireproof glue 9.

The working principle is as follows: the first sash 201 and the second sash 202 are fixed on the window frame 1, the third sash 203 can be opened or closed, the door and window sealing strip 7 is tightly attached to the window frame 1 after the third sash is closed, smoke and fire are prevented from diffusing outwards, fireproof heat-insulating filling materials 8 are filled in the window frame 1 to form a broken bridge and block heat diffusion, when a fire disaster happens, the fireproof expansion sealing piece 10 is heated and expanded to enhance the sealing performance between the window frame 1 and each sash, fireproof liquid is heated to foam and expand and becomes opaque white, heat generated by combustion is efficiently prevented from being conducted from the fire-facing surface to the back fire surface, and meanwhile, the heat radiation of the flame on the fire-facing surface of the glass is prevented from being transmitted to the back.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a bridge cut-off second grade fire window, includes window frame (1), its characterized in that: the frame of the window frame (1) is of a hollow structure, a U-shaped steel lining is fixedly installed in a cavity of the window frame (1), fireproof heat-insulating filling materials (8) are filled in the cavity of the window frame (1), a first sash (201), a second sash (202) and a third sash (203) are respectively arranged in the window frame (1), hollow grouting fireproof glass (3) is fixedly installed in the first sash (201), the second sash (202) and the third sash (203), the first sash (201) is fixedly installed above the window frame (1), the second sash (202) and the third sash (203) are respectively arranged below the first sash (201), the second sash (202) is fixedly connected with the window frame (1), the third sash (203) is connected with the window frame (1) through a hinge (6), a handle hinge (4) is connected to one side, far away from the window (6), of the third sash (203), both sides are equipped with latch bolt (11) to one side of fixed mounting at third casement (203) about window handle (4), and third casement (203) upper end is inlayed and is had casement opening and closing control device (5), third casement (203) both sides are inlayed and are had door and window sealing strip (7), window frame (1) is inlayed with the junction of first casement (201), second casement (202) and third casement (203) and is had fire prevention inflation sealing member (10).

2. A bridge cut-off class b fire window according to claim 1, wherein: the hollow grouting fireproof glass (3) is composed of two pieces of plate glass and a connecting strip, wherein the connecting strip is located on the outer edge of the plate glass and is used for connecting the two pieces of plate glass, so that a cavity is formed between the two pieces of plate glass, and the cavity is filled with fireproof liquid.

3. A bridge cut-off class b fire window according to claim 2, wherein: the thickness of the plate glass is 5mm, and the distance between the two plate glasses is 15 mm.

4. A bridge cut-off class b fire window according to claim 1, wherein: the joints of the hollow grouting fireproof glass (3) and the first sash (201), the second sash (202) and the third sash (203) are coated with fireproof glue (9).