Fire-resistant expansion strip mounting structure for window frame

Abstract

This utility model discloses a window frame fire-resistant expansion strip installation structure, which includes a window frame and a window sash. One end face of the window sash is rotatably connected to one side of the window frame. The window frame includes a window frame a, a window frame thermal insulation strip, and a window frame b connected sequentially from the inside to the outside. A window frame corner bracket groove is fixed to the end of the window frame b near the window sash. The window sash includes a window sash a, a window sash thermal insulation strip, and a window sash b connected sequentially from the inside to the outside. A window sash corner bracket groove is fixed to the end of the window sash a near the window frame. A first fire-resistant expansion strip is clamped between the window frame b and the window frame corner bracket groove by a first clamping device. A second fire-resistant expansion strip is clamped between the window sash a and the window sash corner bracket groove by a second clamping device. A third fire-resistant expansion strip is clamped between the outer wall of the window sash b near the window frame b and the window sash thermal insulation strip by a third clamping device.

Description

Technical Field

[0001] This utility model relates to the field of building exterior window processing technology, specifically to the installation structure of fire-resistant expansion strips for window frames. Background Technology

[0002] Currently, the mainstream technical approach for fire-resistant windows is to use thermally broken aluminum alloy windows as the basic frame, and then add fire-resistant glass, fire-resistant sealing strips, and fire-resistant auxiliary materials to achieve the fire resistance limit while retaining the original thermal insulation performance of the window. In the event of a fire, the expansion strips will expand due to the high temperature, quickly filling the gaps between the profiles to form a tight fire barrier, effectively blocking the path of flame spread.

[0003] An existing patent (publication number: CN209603799U) discloses a fire-resistant aluminum alloy window, which features high-ratio expanded graphite strips adhered to the interior frame, exterior frame, exterior sash frame, and interior sash frame. The technical problems are as follows: 1. The profile lacks a specific installation location for the fire-resistant expanded graphite strips; they can only be adhered to the angle steel plate slots. Due to different fire resistance ratings, the thickness of the fire-resistant expanded graphite strips varies, and the existing angle steel plate slots cannot match different models of fire-resistant expanded graphite strips, resulting in low versatility and high costs associated with re-molding the profiles. 2. The angle steel plate slots contain angle steel plates. When installing the adhesive-coated fire-resistant expanded graphite strips, they need to be bypassed or adhered to the outer wall of the angle steel plates, affecting the fire resistance effect and preventing secure adhesion to the profile surface, often leading to detachment and a short service life. 3. The application of adhesive-backed fire-resistant expansion strips requires stringent conditions and advanced processing techniques. It must be performed in a dust-free environment, and repeated pressing is necessary after application to the profile to ensure effective adhesion of each section of the expansion strip. This process is labor-intensive, time-consuming, and inefficient. 4. Existing adhesive-backed fire-resistant expansion strip application also has relatively high temperature requirements. The optimal operating temperature is 15℃-35℃. However, in winter, the temperature in processing workshops is generally around 5℃, which is insufficient to meet the environmental temperature requirements for the application of fire-resistant expansion strips. Utility Model Content

[0004] The purpose of this utility model is to provide a window fire-resistant expansion strip installation structure.

[0005] This utility model is implemented by the following technical solution: a window frame fire-resistant expansion strip installation structure, which includes a window frame and a window sash, wherein one end face of the window sash is rotatably connected to one side of the window frame; the window frame includes window frame a, window frame thermal insulation strip, and window frame b connected sequentially from the inside to the outside, and a window frame corner bracket groove is fixed to the end of window frame b near the window sash; the window sash includes window sash a, window sash thermal insulation strip, and window sash b connected sequentially from the inside to the outside, and a window sash corner bracket groove is fixed to the end of window sash a near the window frame.

[0006] The first fire-resistant expansion strip is held between the window frame b and the window frame corner bracket slot by a first clamping device; the second fire-resistant expansion strip is held between the window sash a and the window sash corner bracket slot by a second clamping device; and the third fire-resistant expansion strip is held between the outer wall of the window sash b near the window frame b and the window sash insulation strip by a third clamping device.

[0007] Furthermore, the first clamping device includes a first clamp a and a first clamp b fixedly connected, the first clamp a and the first clamp b respectively clamping the first refractory expansion strip.

[0008] Furthermore, the side of the first clip a away from the first fire-resistant expansion strip is bolted to the outer wall of the window frame b.

[0009] Furthermore, the side of the first clip b furthest from the first fire-resistant expansion strip engages with the window frame corner bracket slot.

[0010] Furthermore, the second clamping device includes a second locking member, one side of which engages with the window sash corner bracket slot, and the other side of which clamps a second fire-resistant expansion strip.

[0011] Furthermore, the third clamping device includes a third clamp a and a third clamp b. The third clamp a is fixedly connected to the outer wall of the window sash b. The third clamp b is fixed at one end of the third clamp a near the thermal insulation strip of the window sash. The third clamp b clamps a third fire-resistant expansion strip on the side of the third clamp b near the thermal insulation strip of the window sash.

[0012] The advantages of this utility model are: under the action of the first clamping device, the second clamping device and the third clamping device, the fire-resistant expansion strip can be fixed to the window frame and window sash without relying on the window sash corner bracket slot or the window frame corner bracket slot, which reduces the impact of the angle steel plate assembly on the installation process of the fire-resistant expansion strip, ensures the installation of the fire-resistant expansion strip, and allows for selective adjustment of the model of the clips according to different fire resistance requirements, reducing the cost of re-molding the window profile and improving versatility.

[0013] The first, second, and third clamping devices can clamp and fix the fire-resistant expansion strips without the need for adhesive, thus extending the service life and stability of the fire-resistant expansion strips and reducing the problem of detachment.

[0014] The first, second, and third clamping devices do not need to be fixed along the entire length of the window profile. They only need to be fixed at appropriate intervals. The installation is convenient and the operation is simple. Compared with the cumbersome process of using adhesive fire-resistant expansion strips, it can greatly save time, improve efficiency, save costs, and facilitate the replacement of fire-resistant expansion strips later.

[0015] Replacing the adhesive-backed refractory expansion strips in the existing technology with non-adhesive-backed refractory expansion strips solves the limitation of low temperature on the adhesion of adhesive-backed refractory expansion strips, allowing the workshop to process normally in winter. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

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

[0018] Figure 2 This is a schematic diagram of the structure of the first clamping device in this utility model. Figure 1 ;

[0019] Figure 3 This is a schematic diagram of the structure of the first clamping device in this utility model. Figure 2 ;

[0020] Figure 4 This is a schematic diagram of the structure of the second clamping device in this utility model;

[0021] Figure 5 This is a schematic diagram of the third clamping device in the present invention;

[0022] In the picture:

[0023] Window frame 1, window frame a1.1, window frame b1.2, window frame thermal insulation strip 1.3, window sash 2, window sash a2.1, window sash b2.2, window sash thermal insulation strip 2.3, window frame corner bracket slot 4, window sash corner bracket slot 6, first clamping device 7, first clip a7.1, first clip b7.2, first fire-resistant expansion strip 8, second clamping device 9, second clip 9.1, second fire-resistant expansion strip 10, third clamping device 11, third fire-resistant expansion strip 12, third clip a11.1, third clip b11.2. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-5As shown, the window frame fire-resistant expansion strip installation structure includes a window frame 1 and a window sash 2. One end face of the window sash 2 is rotatably connected to one side of the window frame 1. The window frame 1 includes a window frame a1.1, a window frame thermal insulation strip 1.3, and a window frame b1.2 connected sequentially from the inside to the outside. A window frame corner bracket groove 4 is fixed to the end of the window frame b1.2 near the window sash 2. The window sash 2 includes a window sash a2.1, a window sash thermal insulation strip 2.3, and a window sash b2.2 connected sequentially from the inside to the outside. A window sash corner bracket groove 6 is fixed to the end of the window sash a2.1 near the window frame 1.

[0026] A first fire-resistant expansion strip 8 is held between the window frame b1.2 and the window frame corner bracket slot 4 by a first clamping device 7; a second fire-resistant expansion strip 10 is held between the window sash a2.1 and the window sash corner bracket slot 6 by a second clamping device 9; a third fire-resistant expansion strip 12 is held between the outer wall of the window sash b2.2 near the window frame b1.2 and the window sash thermal insulation strip 2.3 by a third clamping device 11.

[0027] Under the action of the first clamping device 7, the second clamping device 9, and the third clamping device 11, the fire-resistant expansion strip can be fixed to the window frame 1 and the window sash 2 without relying on the window sash corner bracket slot 6 and the window frame corner bracket slot 4. This reduces the impact of the angle steel plate assembly on the installation process of the fire-resistant expansion strip, ensuring the installation of the fire-resistant expansion strip. For different fire resistance rating requirements, the model of the clamps can be selectively adjusted, reducing the cost of re-molding the window profiles and improving versatility. The first clamping device 7, the second clamping device 9, and the third clamping device 11 can clamp and fix the fire-resistant expansion strip without the need for adhesive, extending the service life and stability of the fire-resistant expansion strip and reducing the problem of detachment.

[0028] Furthermore, the first clamping device 7 includes a first clamp a7.1 and a first clamp b7.2 fixedly connected, and the first clamp a7.1 and the first clamp b7.2 respectively clamp the first refractory expansion strip 8.

[0029] Furthermore, the side of the first clip b7.2 furthest from the first fire-resistant expansion strip 8 engages with the window frame corner bracket slot 4. Profiles with built-in window frame corner bracket slots 4 can directly engage the first clip b7.2. Figure 2 As shown, if the profile does not have the window frame corner bracket slot 4, the side of the first clip a7.1 furthest from the first fire-resistant expansion strip 8 needs to be bolted to the outer wall of the window frame b1.2. Figure 3 As shown.

[0030] Furthermore, the second clamping device 9 includes a second locking member 9.1. Figure 4 As shown, one side of the second clip 9.1 engages with the window sash corner bracket slot 6, and the other side of the second clip 9.1 holds the second fire-resistant expansion strip 10.

[0031] Furthermore, the third clamping device 11 includes a third clamping component a11.1 and a third clamping component b11.2. Figure 5 As shown, the third clip a11.1 is fixedly connected to the outer wall of the window sash b2.2 by bolt connection. The third clip a11.1 is fixed to the end of the window sash near the thermal insulation strip 2.3 by the third clip b11.2, and the third fire-resistant expansion strip 12 is clamped on the side of the third clip b11.2 near the thermal insulation strip 2.3.

[0032] The specific operation process of this embodiment is as follows:

[0033] Multiple first clamping devices 7 are arranged between the window frame b1.2 and the window frame corner bracket groove 4. The first clamping devices 7 are evenly spaced along the height direction of the window frame 1 (they do not need to be fixed along the entire length of the window profile, but only fixed at appropriate intervals). Then, the first fire-resistant expansion strip 8 is passed between each of the first clamping devices 7.

[0034] Multiple second clamping devices 9 are arranged between the window sash a2.1 and the window sash corner bracket groove 6. The second clamping devices 9 are evenly spaced along the height direction of the window frame 1 (they do not need to be fixed along the entire length of the window profile, but only fixed at appropriate intervals). Then, the second fire-resistant expansion strip 10 is passed between each of the second clamping devices 9.

[0035] Multiple third clamping devices 11 are arranged between the outer wall of the window sash b2.2 near the window frame b1.2 and the window sash thermal insulation strip 2.3. The third clamping devices 11 are evenly spaced along the height direction of the window frame 1 (they do not need to be fixed along the entire length of the window profile, but only fixed at appropriate intervals). Then, the third fire-resistant expansion strip 12 is passed between each third clamping device 11.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fire-resistant expansion strip installation structure for a window frame, comprising a window frame and a window sash, wherein one end face of the window sash is rotatably connected to one side of the window frame; the window frame comprises, from the inside out, a window frame a, a window frame thermal insulation strip, and a window frame b, wherein a window frame corner bracket groove is fixed to the end of the window frame b near the window sash; the window sash comprises, from the inside out, a window sash a, a window sash thermal insulation strip, and a window sash b, wherein a window sash a is fixed to the end of the window sash a near the window frame, characterized in that: The first fire-resistant expansion strip is held between the window frame b and the window frame corner bracket slot by a first clamping device; the second fire-resistant expansion strip is held between the window sash a and the window sash corner bracket slot by a second clamping device; and the third fire-resistant expansion strip is held between the outer wall of the window sash b near the window frame b and the window sash insulation strip by a third clamping device.

2. The window fire-resistant expansion strip installation structure according to claim 1, characterized in that, The first clamping device includes a first clamp a and a first clamp b that are fixedly connected, and the first clamp a and the first clamp b respectively clamp the first fire-resistant expansion strip.

3. The window fire-resistant expansion strip installation structure according to claim 2, characterized in that, The first clip a is bolted to the outer wall of the window frame b on the side away from the first fire-resistant expansion strip.

4. The window fire-resistant expansion strip installation structure according to claim 2, characterized in that, The side of the first clip b furthest from the first fire-resistant expansion strip engages with the corner bracket slot of the window frame.

5. The window fire-resistant expansion strip installation structure according to claim 1, characterized in that, The second clamping device includes a second locking member, one side of which engages with the window sash corner bracket slot, and the other side of which clamps a second fire-resistant expansion strip.

6. The window fire-resistant expansion strip installation structure according to claim 1, characterized in that, The third clamping device includes a third clamp a and a third clamp b. The third clamp a is fixedly connected to the outer wall of the window sash b. The third clamp b is fixed at one end of the third clamp a near the thermal insulation strip of the window sash. The third clamp b clamps a third fire-resistant expansion strip on the side of the third clamp b near the thermal insulation strip of the window sash.

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