Corner wrapping connecting piece for fire-resistant window

Abstract

The utility model relates to the technical field of doors and windows, in particular to a fire-resistant window wrap angle connecting piece which further improves the flame retardant effect, improves safety and effectively prevents fire from spreading and comprises a corner brace, a plurality of installation grooves are formed in the side face of the attaching side of the corner brace, a heating expansion strip is arranged in each installation groove, and the heating expansion strip is connected with the corner brace. The outer portion of each mounting groove is filled with flame-retardant powder, the flame-retardant powder is extruded out of the mounting grooves after the heating expansion strips are heated and expanded so as to block gaps, a heated melting film used for blocking openings of the mounting grooves is mounted on the side face of the attaching side of the corner connector, and the heated melting film at the normal temperature prevents the flame-retardant powder from leaking out of the mounting grooves. The flame-retardant powder is high-density powder, a plurality of mounting holes are formed in the corner connector, screws used for connection are mounted in the mounting holes, and adhesive is mounted on the side face of the attaching side of the corner connector.

Description

Technical Field

[0001] The utility model relates to the technical field of doors and windows, in particular to a fire-resistant window corner connector. Background Art

[0002] As we all know, when an outdoor fire occurs or a fire test is performed on existing fire-resistant windows, the aluminum material on the fire-facing side (outdoor side) will melt due to the heat, and the heat will be transferred to the side close to the wall. The gap between the fire-resistant window and the wall is generally filled with waterproof mortar or injected with foaming agent. When an outdoor fire occurs, the waterproof mortar cracks or the foaming agent burns, causing a gap between the window frame and the wall. The thick smoke facing the fire side will enter the back-fire side, and the death rate due to suffocation by thick smoke is the highest in fires.

[0003] After searching, the publication number CN213654661U disclosed a fire-resistant window corner connector, which uses a fire-proof expansion strip. When a fire occurs, the fire-proof expansion strip continues to expand through the opening position, blocking the gap between the window frame and the wall corner, preventing the entry of thick smoke, and effectively solving the problem when an outdoor fire occurs.

[0004] However, in practice, fire-proof expansion strips are mostly thermosetting rubber strips. Rubber strips do have a certain sealing effect in the initial stage of combustion, but when the high temperature and combustion continue, the rubber strips are easily ignited and melted, and the sealing effect is poor, which can easily cause the fire to spread.

[0005] Therefore, we conducted in-depth research on the above issues, which led to the emergence of this case. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the deficiencies of the prior art, the utility model provides a fire-resistant window corner connector, which further improves the flame retardant effect and enhances safety.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fire-resistant window corner connector, including a corner code, a plurality of installation grooves are provided on the side surface of the corner code against which the corner code is abutted, a heat expansion strip is provided inside each of the installation grooves, and a flame retardant powder is filled on the outside of each of the installation grooves. After the heat expansion strip is heated and expanded, the flame retardant powder is squeezed out of the installation groove to seal the gap. A heat-melting film for sealing the opening of the installation groove is installed on the side surface of the corner code against which the corner code is abutted, and the heat-melting film at room temperature prevents the flame retardant powder from leaking out of the installation groove.

[0010] Furthermore, the flame retardant powder is high-density powder.

[0011] Furthermore, the angle bracket is provided with a plurality of mounting holes, and screws for connection are installed in the mounting holes.

[0012] Furthermore, adhesive is installed on the side surface of the corner bracket.

[0013] (3) Beneficial effects

[0014] Compared with the prior art, the present invention provides a fire-resistant window corner connector with the following features:

[0015] Beneficial effects:

[0016] The fire-resistant window corner connector is provided with an installation groove, flame retardant powder and a heat-melting film. When a fire occurs, the heat-melting film melts after being exposed to high temperature, and the flame retardant powder leaks out of the installation groove and enters the gap to play a sealing role, replacing the traditional rubber strip. The flame retardant powder will not be ignited or melted, and can continuously play a sealing role, thereby improving practicality. In addition, the heat-expanding strip is provided, and the heat-expanding strip expands after being heated to squeeze out more flame retardant powder, so that more flame retardant powder enters the gap, further improving the flame retardant effect, and effectively preventing the spread of fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model in which the installation slot is empty;

[0020] Figure 4 It is a schematic cross-sectional structural diagram of the present utility model.

[0021] In the figure: 1. Angle code; 2. Mounting slot; 3. Thermal expansion strip; 4. Flame retardant powder; 5. Thermal melting film; 6. Mounting hole; 7. Screw; 8. Adhesive. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-4The utility model relates to a fire-resistant window corner connector, comprising a corner code 1, and a plurality of mounting grooves 2 are opened on the side surface of the corner code 1 against which the corner code 1 is abutted, and a heat expansion strip 3 is provided inside each mounting groove 2, and the outside of each mounting groove 2 is filled with flame retardant powder 4. After the heat expansion strip 3 expands, the flame retardant powder 4 is squeezed out from the mounting groove 2, so that more flame retardant powder 4 enters the gap, further improving the sealing effect of the gap. A heat-melting film 5 for sealing the opening of the mounting groove 2 is installed on the side surface against which the corner code 1 is abutted. The heat-melting film 5 at room temperature prevents the flame retardant powder 4 from leaking from the mounting groove 2. Compared with traditional rubber strips, the heat-melting film 5 seals the gap after it is heated and melted in the early stage of combustion. The heat-melting film 5 melts after being subjected to high temperature, and the flame retardant powder 4 leaks out of the mounting groove 2. When a fire continues, the flame retardant powder 4 enters the gap, and the flame retardant powder 4 is used to seal it, effectively playing a flame retardant role.

[0024] Among them, the flame retardant powder 4 is a high-density powder to improve the flame retardant effect.

[0025] The angle bracket 1 is provided with a plurality of mounting holes 6 , in which screws 7 for connection are installed.

[0026] Among them, adhesive glue 8 is installed on the side of the corner code 1 that is in contact with the side.

[0027] To sum up, when using this fire-resistant window corner connector, the cornea is installed in a suitable position and fixed with screws 7 or adhesive 8, preferably fixed with screws 7. When a fire occurs, in the early stage of combustion, the heat-melting film 5 melts and seals the gap. The heat-melting film 5 melts after being exposed to high temperature, and the flame retardant powder 4 leaks out of the installation groove 2. When the fire continues, the flame retardant powder 4 enters the gap, and the flame retardant powder 4 is used to seal it, effectively playing a flame retardant role. The heat-expanding strip 3 expands when heated and squeezes the flame retardant powder 4 out of the installation groove 2, so that more flame retardant powder 4 enters the gap, further improving the sealing effect of the gap.

[0028] The technical terms or scientific terms used in the description of this application should have the usual meanings understood by those skilled in the art in the field to which this application belongs. The words "upper", "lower", "left", "right", "center", "vertical", "horizontal", "inside", "outside" and other words indicating orientation used in the description of this application are only used to indicate relative directions or positional relationships, and do not imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. When the absolute position of the described object changes, its relative positional relationship may also change accordingly, and therefore cannot be understood as a limitation on this application. The terms "first", "second", "third" and similar terms used in the description of this application are only used for descriptive purposes to distinguish different components, and cannot be understood as indicating or implying relative importance.

[0029] The words "a", "an" or "the" and the like used in the description of this application should not be understood as an absolute limitation on quantity, but should be understood as the presence of at least one. The words "include" or "comprise" and the like used in the description of this application mean that the elements or objects listed before the word include the elements or objects listed after the word and their equivalents, but do not exclude other elements or objects.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire-resistant window corner connector, comprising a corner code (1), characterized in that: A plurality of mounting grooves (2) are provided on the side of the angle code (1) against which the angle code (1) abuts, a heat expansion strip (3) is provided inside each of the mounting grooves (2), and a flame retardant powder (4) is filled outside each of the mounting grooves (2). After the heat expansion strip (3) expands under heat, the flame retardant powder (4) is squeezed out from the mounting groove (2) to seal the gap. A heat melting film (5) for sealing the opening of the mounting groove (2) is provided on the side of the angle code (1) against which the angle code (1) abuts, and the heat melting film (5) prevents the flame retardant powder (4) from leaking out of the mounting groove (2) at room temperature.

2. The fire-resistant window corner connector according to claim 1, characterized in that: The flame retardant powder (4) is high-density powder.

3. The fire-resistant window corner connector according to claim 1, characterized in that: The angle code (1) is provided with a plurality of mounting holes (6), and screws (7) for connection are installed in the mounting holes (6).

4. The fire-resistant window corner connector according to claim 1, characterized in that: Adhesive glue (8) is installed on the side of the corner code (1) that is in contact with the side.

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