Quickly-assembled external window structure for existing building

By connecting the inner frame of the quick-installation exterior window structure with the metal clips of the outer window frame, and combining components such as sound-absorbing cotton strips, rubber sealing gaskets, and temperature-sensitive gel, the problem of low construction efficiency in the renovation of existing building exterior windows is solved, achieving rapid installation and performance improvement.

CN224228498UActive Publication Date: 2026-05-12江苏筑原建筑设计有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
江苏筑原建筑设计有限公司
Filing Date
2025-05-29
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

The renovation of existing building windows is inefficient and cannot meet the needs of rapid updates. Existing technologies, such as complete demolition and replacement or replacement with new materials, have problems such as long construction cycles, high costs, and significant damage to the building structure.

Method used

The quick-installation exterior window structure includes metal clips connecting the inner and outer window frames, combined with components such as sound-absorbing cotton strips, rubber sealing gaskets, temperature-sensitive silicone gel, and magnetic sealing strips, to achieve rapid installation and improve airtightness, heat insulation, and sound insulation performance.

Benefits of technology

It enables the rapid replacement of existing building windows, improves installation efficiency, enhances airtightness, watertightness, heat insulation and sound insulation, and reduces construction damage to the building structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of existing building outer window updating structures, and discloses a fast-assembly type outer window structure for an existing building, which comprises an outer window frame of the existing building, an inner auxiliary frame arranged on the inner side of the outer window frame and a window sash assembled in the inner auxiliary frame, and an inserting groove is annularly formed in the inner side wall of the outer window frame. The inner auxiliary frame comprises two vertical frames, a top frame and a bottom frame, clamping strips are arranged on the outer side walls of the vertical frames, the top frame and the bottom frame in the length direction of the vertical frames, the top frame and the bottom frame, each clamping strip is sleeved with a plurality of metal clamping pieces in a sealed mode, and each metal clamping piece comprises an inserting-connecting part inserted into the corresponding inserting-connecting groove and a connecting part attached to the inner side wall of the outer window frame. The portions, located on the two sides of the inserting groove, of the connecting parts are each provided with one connecting part, the portions, extending out of the outer window frame, of the connecting parts are bent towards the outer window frame, the outer window frame is sleeved with the metal clamping pieces, and fixing pieces are connected between the connecting parts and the outer window frame. The installation method has the effect of improving the installation efficiency of the existing building external window structure.
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Description

Technical Field

[0001] This application relates to the field of structural technology for the renovation of exterior windows in existing buildings, and in particular to a quick-installation exterior window structure for existing buildings. Background Technology

[0002] Existing building windows commonly suffer from poor airtightness, insufficient thermal insulation, and structural aging due to long-term use. In recent years, with the continuous improvement of energy-saving standards, new materials such as Low-E glass and thermally broken aluminum profiles have gradually become more widespread, leading to a growing demand for window replacements in the field of building energy-saving renovations.

[0003] In older existing buildings, the sliding window frames typically have a groove around them to allow the window sash to be pushed and pulled to open and close. The following methods are commonly used for structural updates to the windows of such existing buildings.

[0004] One existing approach is complete removal and replacement, which involves entirely removing the old windows and installing new ones that meet the new standards. While this method can comprehensively improve the performance of the windows, it has a long construction period, often requiring the building to be shut down during construction. It is also costly, including not only the cost of the new windows but also the cost of demolition, and it can damage the original building structure, potentially requiring hole enlargement or reinforcement. The second approach is partial replacement with new materials, such as replacing ordinary glass with Low-E glass, which can improve thermal insulation but does not solve the problem of air leakage through the window frame. Furthermore, glass replacement requires specialized equipment, making it difficult to guarantee construction efficiency.

[0005] The main problem with the aforementioned existing technologies is their low construction efficiency, making it difficult to meet the demand for rapid window replacement in existing buildings. Whether it's the long cycle of complete demolition and replacement or the complex procedures involved in replacing new materials, window replacement is time-consuming and cannot meet the stringent time requirements of existing building renovations. Utility Model Content

[0006] To improve the installation efficiency of exterior window structures in existing buildings, this application provides a quick-installation exterior window structure for existing buildings.

[0007] The present application provides a quick-installation exterior window structure for existing buildings, which adopts the following technical solution:

[0008] A quick-installation exterior window structure for existing buildings includes an exterior window frame of the existing building. The inner sidewall of the exterior window frame is provided with an insertion groove. It also includes an inner sub-frame located inside the exterior window frame and a window sash assembled in the inner sub-frame. The inner sub-frame includes two vertical frames, a top frame located between the tops of the two vertical frames, and a bottom frame located at the bottom ends of the two vertical frames. The outer sidewalls of the vertical frames, top frame, and bottom frame are provided with locking strips along their own length direction. Each locking strip is sealed with multiple metal clips. The metal clips include an insertion part inserted into the insertion groove and a connecting part that fits against the inner sidewall of the exterior window frame. There is one connecting part on each side of the insertion groove, and the part extending out of the exterior window frame is bent toward the exterior window frame. The metal clips are fitted onto the exterior window frame, and the connecting part is connected to the exterior window frame with a fixing member.

[0009] By adopting the above technical solution, during the renovation and installation of exterior windows in existing buildings, multiple metal clips are first fitted onto the clips of the vertical frame, top frame, and bottom frame one by one. Then, the vertical frame, top frame, and bottom frame are assembled to the inside of the existing building's exterior window frame using the metal clips. Finally, the window sash is assembled using hinges. This allows for the rapid completion of the exterior window structure installation, thereby improving the installation efficiency of the existing building's exterior window structure.

[0010] Optionally, a sound-absorbing cotton strip is inserted into the insertion groove, and the sound-absorbing cotton strip fills the gap between the insertion part and the inner wall of the insertion groove.

[0011] By adopting the above technical solution, on the basis of connecting the inner frame and the outer window frame with metal clips, the sound-absorbing cotton strips pre-embedded in the insertion groove are used to fill the gap between the insertion part and the inner wall of the insertion groove, which can reduce the sound transmission caused by the gap and achieve the effect of sound absorption and noise reduction.

[0012] Optionally, a rubber sealing gasket is provided on the side wall of the outer window frame facing the metal clip. When the metal clip is sleeved and positioned on the outer window frame, the metal clip is embedded in the rubber sealing gasket, and the rubber sealing gasket is sealed and fitted with the outer side wall of the inner frame.

[0013] By adopting the above technical solution, the sealing between the outer window frame and the metal fasteners and the inner sub-frame is enhanced by using rubber sealing gaskets, reducing the leakage of air and rainwater, and improving the airtightness and watertightness of the outer window.

[0014] Optionally, each of the vertical frame, top frame, and bottom frame has an independently enclosed cavity. A variable viscosity fluid, which is a temperature-sensitive silicone gel, is injected into the cavity. Each vertical frame, top frame, and bottom frame has an injection port and an outlet on its side wall. The injection port is located above the outlet, and both the injection port and the outlet are equipped with a sealing plug.

[0015] By adopting the above technical solution, the temperature-sensitive silicone gel can change its viscosity with temperature variations. When injected into the cavities of each frame of the inner subframe, it can effectively improve the thermal and sound insulation performance of the inner subframe. Using the injection port and outlet port, the amount of fluid in the cavities of each frame of the inner subframe can be changed according to actual conditions, improving the stability of the thermal and sound insulation performance of the inner subframe.

[0016] Optionally, magnetic sealing strips are respectively provided on the inner sidewall of the inner frame and the outer peripheral sidewall of the window sash. The two magnetic sealing strips are arranged with opposite poles facing each other, and one of the magnetic sealing strips is provided with an electromagnetic coil. The current of the electromagnetic coil is adjusted by an external controller.

[0017] By adopting the above technical solution, the current of the electromagnetic coil can be adjusted by an external controller according to actual usage needs, thereby changing the magnetic force of the magnetic sealing strip and thus precisely adjusting the fit between the window sash and the inner frame to optimize the sealing effect.

[0018] Optionally, the bottom of the inner frame that fits against the window sash is provided with a drainage slope, and the drainage slope is inclined towards the outside. A drainage hole connecting to the outside is opened on the inner frame at the lowest point of the drainage slope.

[0019] By adopting the above technical solutions, the setting of drainage slope and drainage holes helps to drain the water accumulated at the top of the bottom frame to the outside in a timely manner, reducing problems such as window frame corrosion caused by water accumulation, and helping to extend the service life of the exterior window structure.

[0020] Optionally, a waterproof strip is provided on the bottom frame on the side of the drainage slope facing the interior.

[0021] By adopting the above technical solution, rainwater is effectively prevented from flowing into the room over the drainage slope, further enhancing the waterproof performance of the inner frame.

[0022] Optionally, the non-glass portion of the window sash is made of a porous sound-absorbing material.

[0023] By adopting the above technical solution, the non-glass part of the window sash is made of a sound-absorbing panel made of porous sound-absorbing material, which can effectively absorb sound, reduce the possibility of external noise entering the room, and improve the sound insulation performance of the exterior window.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. In the process of updating and installing the exterior windows of existing buildings, multiple metal clips are first fitted onto the clips of the vertical frame, top frame and bottom frame one by one. Then, the vertical frame, top frame and bottom frame are assembled into the inside of the exterior window frame of the existing building using metal clips. Finally, the window sash is assembled by hinge. This can quickly complete the installation of the exterior window structure, thereby improving the installation efficiency of the exterior window structure of existing buildings.

[0026] 2. Based on the connection between the inner frame and the outer window frame via metal clips, sound-absorbing cotton strips are pre-embedded in the insertion groove to fill the gap between the insertion part and the inner wall of the insertion groove, which can reduce the sound transmission caused by the gap and achieve the effect of sound absorption and noise reduction.

[0027] 3. The use of rubber sealing gaskets enhances the sealing between the outer window frame and the metal fasteners, as well as the inner subframe, reducing air and rainwater leakage and improving the airtightness and watertightness of the outer window. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application.

[0029] Figure 2 This is a cross-sectional view illustrating the connection relationship between the outer window frame, metal clips, bottom frame, and window sash in the embodiments of this application.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Outer window frame; 11. Insert groove; 12. Rubber sealing gasket; 13. Sound-absorbing cotton strip; 2. Inner frame; 21. Vertical frame; 22. Top frame; 23. Bottom frame; 231. Drainage slope; 232. Drainage hole; 24. Cavity; 241. Inlet; 242. Outlet; 243. Sealing plug; 3. Metal clips; 31. Insertion part; 32. Connecting part; 4. Hinge; 5. Window sash; 6. Clip strip; 7. Fixture; 8. Magnetic sealing strip; 81. Electromagnetic coil; 811. Electrical wire; 812. Power plug; 9. Waterproof rubber strip. Detailed Implementation

[0032] The following is in conjunction with the appendix Figures 1-2 This application will be described in further detail.

[0033] This application discloses a quick-installation exterior window structure for existing buildings.

[0034] Reference Figure 1 A quick-installation exterior window structure for existing buildings includes an exterior window frame 1 and an inner sub-frame 2. The exterior window frame 1 is the original structure on the existing building. The inner sub-frame 2 is located inside the exterior window frame 1 and is provided with several metal clips 3 between it and the exterior window frame 1. The inner sub-frame 2 is assembled onto the exterior window frame 1 through the metal clips 3, and a window sash 5 is hinged inside the inner sub-frame 2 through hinges 4.

[0035] Reference Figure 1 The inner frame 2 includes two vertical frames 21, a top frame 22, and a bottom frame 23. The top frame 22 is located between the tops of the two vertical frames 21, while the bottom frame 23 is located between the bottoms of the two vertical frames 21.

[0036] Reference Figure 1 and Figure 2The inner wall of the outer window frame 1 is provided with a circumferential insertion groove 11. The outer walls of the vertical frame 21, top frame 22, and bottom frame 23 are all integrally formed with locking strips 6 along their length. The locking strip 6 is a strip-shaped protruding structure, made of the same material as the frame, and partially inserted into the insertion groove 11. In this embodiment, each locking strip 6 is sealed with two metal clips 3, which are symmetrically distributed on the locking strip 6.

[0037] Reference Figure 1 and Figure 2 The metal clip 3 includes an integrally formed insertion part 31 and a connecting part 32. The insertion part 31 is inserted into the insertion groove 11, while the connecting part 32 is attached to the inner side wall of the outer window frame 1 and is provided on both sides of the insertion part 31. The two connecting parts 32 extend out of the outer window frame 1 and bend towards the outer window frame 1, so that the metal clip 3 is fitted onto the outer window frame 1, and the initial positioning of the two vertical frames 21, the top frame 22, and the bottom frame 23 with the outer window frame 1 can be gradually achieved. A fastener 7 is connected between the connecting part 32 and the side wall of the outer window frame 1. In this embodiment, the fastener 7 is a fastening bolt. The fastening bolt firmly connects the connecting part 32 of the metal clip 3 to the outer window frame 1, completing the installation of the inner frame 2 and the outer window frame 1.

[0038] Reference Figure 2 A rubber sealing gasket 12 is fixedly installed on the side wall of the outer window frame 1 facing the metal clip 3. When the metal clip 3 is fitted and positioned on the outer window frame 1, the connecting part 32 is embedded in the rubber sealing gasket 12, so that the rubber sealing gasket 12 and the outer side wall of the inner frame 2 are sealed and fitted together.

[0039] Reference Figure 2 To improve sound insulation, a sound-absorbing cotton strip 13 is inserted into the insertion groove 11. When the insertion part 31 is inserted into the insertion groove 11, the sound-absorbing cotton strip 13 fills the gap between the insertion part 31 and the inner wall of the insertion groove 11.

[0040] Reference Figure 1 and Figure 2 To improve the thermal insulation performance of the exterior window structure, each of the vertical frame 21, top frame 22, and bottom frame 23 has an independently enclosed cavity 24. A variable viscosity fluid, specifically a temperature-sensitive silicone gel, is injected into each cavity 24. The temperature-sensitive silicone gel has different viscosities at different temperatures; as the temperature increases, the viscosity decreases and the fluidity increases; conversely, as the temperature decreases, the viscosity increases and the fluidity decreases. This allows the thermal insulation performance of the inner frame 2 to be adjusted according to different seasons and ambient temperatures.

[0041] Reference Figure 1 and Figure 2Each vertical frame 21, top frame 22, and bottom frame 23 has an inlet 241 and an outlet 242 on its side wall, which communicate with the cavity 24. The inlet 241 is located above the outlet 242, and both the inlet 241 and the outlet 242 are provided with a sealing plug 243. The sealing plug 243 is generally made of rubber and fits tightly with the inlet 241 and the outlet 242 by interference fit to prevent leakage of variable viscosity fluid.

[0042] Reference Figure 1 and Figure 2 To improve the fit between the window sash 5 and the inner frame 2, magnetic sealing strips 8 are embedded in the inner wall of the inner frame 2 and the outer wall of the window sash 5, respectively. The magnetic sealing strips 8 are typically made of rubber magnetic strips, which have good flexibility and magnetism. The two magnetic sealing strips 8 are arranged with opposite poles, and an electromagnetic coil 81 is embedded in the magnetic sealing strip 8 located on the inner frame 2. The electromagnetic coil 81 is connected to an external controller inside the room via a connected wire 811 and a power plug 812. The external controller can change the attraction force between the magnetic sealing strips 8 by controlling and adjusting the current of the electromagnetic coil 81, thus ensuring the sealing performance between the window sash 5 and the inner frame 2.

[0043] Reference Figure 2 The bottom frame 23 has a recessed drainage slope 231 at its top, which slopes outwards to ensure smooth drainage of rainwater. A drainage hole 232, connecting to the outside, is located at the lowest point of the drainage slope 231 on the side wall of the bottom frame 23. Several drainage holes 232 are distributed along the length of the bottom frame 23 to ensure unobstructed drainage. A waterproof strip 9 is embedded on the side of the bottom frame 23 facing inwards from the drainage slope 231. When the window sash 5 is closed, its inward-facing side abuts against the waterproof strip 9, effectively preventing rainwater from seeping into the room when it flows into the drainage hole 232.

[0044] Reference Figure 1 To further improve the sound insulation effect of the exterior window structure, the glass part of window sash 5 is set with double-glazed glass, and inert gas is filled between the double-glazed glass. The non-glass part of window sash 5 is supported by porous sound-absorbing material, such as polyester fiber sound-absorbing board, mineral wool sound-absorbing board, etc. These materials have good sound absorption performance.

[0045] The implementation principle of a quick-installation exterior window structure for existing buildings according to an embodiment of this application is as follows: During the renovation of an existing building's exterior window, firstly, the inner wall of the exterior window frame 1 is cleaned, and sound-absorbing cotton strips 13 are inserted into the insertion groove 11 on the inner wall of the exterior window frame 1. Simultaneously, rubber sealing gaskets 12 are glued to the side wall of the exterior window frame 1 facing the metal clip 3. Then, the vertical frame 21, top frame 22, and bottom frame 23, each fitted with a metal clip 3, are placed inside the exterior window frame 1, aligning the insertion part 31 of the metal clip 3 with the insertion groove 11 on the inner wall of the exterior window frame 1. Because the connecting part 32 extends out of the exterior window frame 1 and bends towards it, the initial positioning of the inner frame 2 and the exterior window frame 1 can be quickly achieved. Next, the connecting part 32 of the metal clip 3 is securely connected to the exterior window frame 1 using fastening bolts, completing the installation of the inner frame 2 and the exterior window frame 1. Finally, the window sash 5 is hinged to the inner frame 2 using hinges 4. It avoids the tedious measurement and positioning and numerous bolt tightening operations of traditional installation methods, reduces construction time and damage to the building structure, greatly improves installation efficiency, and can meet the time requirements for rapid replacement of exterior windows of existing buildings.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-installation exterior window structure for existing buildings, comprising an exterior window frame (1) of the existing building, wherein the inner sidewall of the exterior window frame (1) is provided with an insertion groove (11), characterized in that, It also includes an inner subframe (2) located inside the outer window frame (1) and a window sash (5) assembled inside the inner subframe (2). The inner subframe (2) includes two vertical frames (21), a top frame (22) located between the tops of the two vertical frames (21), and a bottom frame (23) located at the bottom of the two vertical frames (21). The outer walls of the vertical frames (21), the top frame (22), and the bottom frame (23) are all provided with retaining strips (6) along their own length direction. Each retaining strip (6) is sealed with a retaining strip. Multiple metal clips (3), each metal clip (3) includes a plug-in part (31) inserted into a plug-in groove (11) and a connecting part (32) that fits against the inner side wall of the outer window frame (1). The connecting part (32) is provided on both sides of the plug-in groove (11), and the part extending out of the outer window frame (1) is bent toward the outer window frame (1). The metal clip (3) is sleeved on the outer window frame (1), and a fastener (7) is connected between the connecting part (32) and the outer window frame (1).

2. The quick-installation exterior window structure for existing buildings according to claim 1, characterized in that, A sound-absorbing cotton strip (13) is inserted into the insertion groove (11), and the sound-absorbing cotton strip (13) fills the gap between the insertion part (31) and the inner wall of the insertion groove (11).

3. The quick-installation exterior window structure for existing buildings according to claim 1, characterized in that, A rubber sealing gasket (12) is provided on the side wall of the outer window frame (1) facing the metal clip (3). When the metal clip (3) is fitted and positioned on the outer window frame (1), the metal clip (3) is embedded in the rubber sealing gasket (12), and the rubber sealing gasket (12) is sealed and fitted with the outer side wall of the inner frame (2).

4. A quick-installation exterior window structure for existing buildings according to claim 1, characterized in that, Each of the vertical frame (21), top frame (22), and bottom frame (23) has an independently enclosed cavity (24). A variable viscosity fluid, which is a temperature-sensitive silicone gel, is injected into the cavity (24). Each vertical frame (21), top frame (22), and bottom frame (23) has an injection port (241) and an outlet (242) on its side wall. The injection port (241) is located above the outlet (242), and both the injection port (241) and the outlet (242) are provided with a sealing plug (243).

5. A quick-installation exterior window structure for existing buildings according to claim 1, characterized in that, Magnetic sealing strips (8) are respectively provided on the inner side wall of the inner frame (2) and the outer side wall of the window sash (5). The two magnetic sealing strips (8) are arranged with opposite poles facing each other, and one of the magnetic sealing strips (8) is provided with an electromagnetic coil (81). The current of the electromagnetic coil (81) is adjusted by an external controller.

6. A quick-installation exterior window structure for existing buildings according to claim 1, characterized in that, The bottom frame (23) is provided with a drainage slope (231) at the top, which is inclined towards the outside. A drainage hole (232) connecting to the outside is provided on the side wall of the bottom frame (23) at the lowest point of the drainage slope (231).

7. A quick-installation exterior window structure for existing buildings according to claim 6, characterized in that, A waterproof strip (9) is provided on the bottom frame (23) on the side of the drainage slope (231) facing the interior.

8. A quick-installation exterior window structure for existing buildings according to claim 1, characterized in that, The non-glass portion of the window sash (5) is made of porous sound-absorbing material.