A frame-fan flat energy-saving aluminum alloy double-inward-opening system window
By using a flush frame and sash design and a vertical isotherm structure, the problems of difficult maintenance of the screen sash, insufficient heat insulation performance, and inconsistent appearance of double-opening windows in the complex climate of northern regions are solved, achieving easy maintenance, heat insulation, and aesthetic appeal.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG SONGLIN DOOR & WINDOW TECH CO LTD
- Filing Date
- 2025-09-03
- Publication Date
- 2026-08-04
AI Technical Summary
Existing double-inward opening windows have problems such as difficulty in maintaining the screen, insufficient heat insulation and wind pressure resistance, and incompatibility with the architecture in the complex climate of the north, which cannot meet the comprehensive needs of high-end consumers.
The window features a flush frame and sash design, combined with a vertical isotherm structure and multi-cavity profiles. An integrated screen sash structure ensures easy disassembly of the screen sash, and the combination of thermal insulation strips and rubber strips enhances thermal insulation performance while maintaining a flat and aesthetically pleasing window appearance.
It achieves easy maintenance, improved thermal insulation performance, and enhanced aesthetics for the screen fan, meeting the high-performance protection and decorative needs of high-end consumers.
Smart Images
Figure CN224592009U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building door and window technology, specifically to a frame-sash flush, ultra-energy-saving aluminum alloy double inward opening system window. Background Technology
[0002] Driven by both the changing climate of northern my country (frequent sandstorms, willow catkins, and active mosquitoes in summer) and the upgrading of residents' living standards, the functional, safety, and aesthetic demands for building doors and windows are becoming increasingly stringent. This is especially true for high-end consumers (such as owners of villas, high-end residences, and ground-floor projects with yards), whose requirements for doors and windows have evolved from basic "wind and rain protection" to "high-performance protection + aesthetic integration." Specifically, this means considering: airtight sealing to prevent sandstorms and mosquitoes; low-energy thermal insulation performance; strong wind resistance; and aesthetic harmony with the building facade. However, existing double-opening windows still have the following technical challenges that urgently need to be addressed, making it difficult to meet these comprehensive requirements: 1. Insufficient functional adaptability: The screen fan is difficult to disassemble and cannot adapt to the maintenance needs of complex scenarios. In northern regions, dust and willow catkins easily adhere to the surface of window screens, requiring frequent cleaning or replacement during mosquito breeding seasons to maintain their protective performance. However, the screen design of mainstream double-opening windows on the market has a significant flaw: the matching screen hinges are incompatible with the screen frame and screen structure, making screen disassembly cumbersome (requiring the removal of multiple hardware components or damage to the sealing structure), and some products even cannot be directly disassembled due to structural limitations. This defect not only increases daily maintenance costs but also limits the frequency of screen cleaning and replacement, making it difficult to meet the core needs of northern users for "easy maintenance and high protection" in window screens.
[0003] II. Weak performance and reliability: Insufficient thermal insulation and wind pressure resistance, unable to meet high-performance requirements. 1. Inadequate thermal insulation performance (K-value): The thickness of the operable sash in a double-inward-opening window is one of the key parameters affecting the overall window's heat transfer coefficient (K-value). In existing technology, most double-inward-opening windows do not adopt a "vertical isotherm structure" design—that is, the thermal insulation cavity between the operable sash and the window frame does not extend along the isotherm direction, resulting in insufficient operable sash thickness (generally less than 30mm). This fails to form an effective thermal insulation buffer layer, allowing heat to easily conduct through the thin sash, making it difficult to reduce the overall window's K-value to a high-performance standard.
[0004] 2. Insufficient wind pressure resistance: Some double-inward opening windows use small-series profiles (such as profile width ≤90mm) in pursuit of a thinner and lighter appearance. Their cross-sectional moment of inertia and bending stiffness are limited. In windy areas in the north (such as coastal areas and plateaus), they are prone to deformation and sealing failure due to excessive wind load, and may even pose safety hazards.
[0005] 3. Poor aesthetic coordination: The protruding external screen windows detract from the building's visual appeal. High-end consumers' decorative requirements for doors and windows have shifted from "functional fulfillment" to "integration with architectural style." Current technology has significant shortcomings in the screen configuration and quilting design of double-opening windows: The issue of protruding external screens: To achieve the protective function of screens, individual windows often require the installation of external screens, resulting in a noticeable protrusion on the exterior. This design is particularly jarring in ground-floor projects with yards or villas, disrupting the integrity and simplicity of the building facade. It may even lead to dust accumulation and impacts on the user experience due to the protrusion.
[0006] In summary, existing double-inward-opening windows face multiple technical bottlenecks in complex northern climate scenarios, including difficulties in maintaining the screen, insufficient heat insulation and wind pressure resistance, and incompatibility with architectural design. Summary of the Invention
[0007] This utility model provides a double inward opening system window with a flush frame and sash, which is an ultra-energy-saving aluminum alloy window that is easy to maintain, improves window performance, and has a better aesthetic appearance.
[0008] A frame-and-sash flush, energy-efficient aluminum alloy double inward opening system window, comprising frame profiles, sash profiles, mullion profiles, quilting lines, and screen sashes; The frame profile includes an interior frame profile and an exterior frame profile, and a thermal insulation strip is provided between the interior frame profile and the exterior frame profile; The frame interior profile has two chambers, with the interior chamber being smaller and the wall forming a stepped shape; the frame interior profile also has a hardware groove, and two reinforcing ribs are provided on the side opposite to the hardware groove; The frame exterior profile has two chambers; an extension wall is also formed in the frame exterior profile, a sealing strip installation groove is provided in the extension wall, and two reinforcing ribs are provided on the side opposite to the extension wall. The fan profile includes an indoor fan profile and an outdoor fan profile, and a heat insulation strip group two is provided between the indoor fan profile and the outdoor fan profile; The mullion profile includes an interior mullion profile and an exterior mullion profile, and a thermal insulation strip group three is provided between the interior mullion profile and the exterior mullion profile; Insulating glass is installed on one side of the frame profile, and a sash is installed on the other side of the frame profile. An equal pressure sealing strip is installed between thermal insulation strip group two and thermal insulation strip group one. A mullion profile is installed on the other side of the sash. An equal pressure sealing strip is installed between thermal insulation strip group two and thermal insulation strip group three. When installing insulated glass in the frame profile, a pressure line is installed in the hardware groove; an interior sealing strip is installed on the pressure line, and an exterior sealing strip is installed in the sealing strip installation groove of the exterior frame profile. The pressure line structure includes a cavity shaped like a right trapezoid, with two right-angled sides extending outwards. One side extends to form a connecting wall that contacts the stepped part of the frame's interior profile, making the interior surface flush. The other side extends outwards to form the glass interior sealing strip mounting end. A mounting protrusion is also formed on the upper bottom, which is installed in the hardware groove of the frame's interior profile. One side of the mounting protrusion is a mounting hook, and the other side is a sealing strip groove. The aforementioned screen is installed on the outside of the screen exterior profile; the screen profile has two chambers, which are vertically connected and have a groove formed on the inner side of the connection, and a serrated surface is formed on the inner side. The screen is installed on the serrated surface and a screen pressure line is installed. One end of the screen pressure line is engaged in the groove, and the other end has two adhesive strip mounting grooves. One adhesive strip contacts the screen exterior profile, and the other adhesive strip contacts the screen.
[0009] Furthermore, the inner profile of the fan includes a cavity; one side of the outer wall extends and forms a groove for the adhesive strip, which contacts the inner profile of the frame; the other side of the outer wall forms a groove for mounting a pressure strip, on which a pressure strip is mounted, and an inner adhesive strip mounting end extends from the pressure strip. The outdoor profile chamber of the fan is smaller than the indoor profile chamber of the fan, and extends to the outdoor glass strip installation end, and a screen fan profile is installed on the outside of the outdoor profile of the fan.
[0010] Furthermore, the structures on both sides of the mullion interior profile and the mullion exterior profile are symmetrically distributed. A groove is provided on the mullion interior profile, and a pressure line is installed in the groove. A small cavity also protrudes from the mullion profile, and the outer wall of the small cavity is flush with the outer wall of the pressure line. An adhesive strip is provided between the outer wall of the groove on the other side and the fan interior profile. The mullion outdoor profile has two chambers side by side. A glass outdoor sealing strip is installed in a groove in one side of the extended wall; a sealing strip is installed in the groove on the other side, which contacts the screen profile.
[0011] Furthermore, the heat insulation strip assembly includes heat insulation strip one and heat insulation strip two; multiple cavities are respectively provided in heat insulation strip one and heat insulation strip two; heat insulation strip one is a flat heat insulation strip; heat insulation strip two is a grooved heat insulation strip; in the side wall of the groove, one side wall has a T-shaped cross section. In the second set of heat insulation strips, one is heat insulation strip one, and the outer wall of the other heat insulation strip protrudes outward, forming a cavity that is larger than the cavity of heat insulation strip one; The aforementioned heat insulation strip group three consists of two heat insulation strips.
[0012] The beneficial effects of this utility model are: 1. This utility model solves the problem of traditional doors and windows requiring the later installation of screens or the inconvenience of screen installation through reasonable structural design. The integrated screen sash structure design ensures the aesthetics of the window structure design.
[0013] 2. The interior and exterior surfaces are designed to be flush, with no height difference, so that the windows appear flat from both inside and outside, significantly improving the aesthetics.
[0014] 3. The structural design incorporates a multi-cavity profile combined with a vertical isotherm structure to effectively block the heat exchange path between indoors and outdoors, significantly improving the heat preservation, insulation, and sound insulation performance compared to traditional thin-walled open fans.
[0015] In summary, this utility model achieves the positive effects of easy disassembly of the screen fan, improved heat insulation performance, and good aesthetics. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the pressure line structure; Figure 3 This is a schematic diagram of the frame profile structure; Figure 4 This is a schematic diagram of the fan-shaped profile structure; Figure 5 This is a schematic diagram of the mullion profile structure.
[0017] In the diagram: 1. Pressure line; 1.1. Cavity; 1.2. Connecting wall; 1.3. Mounting protrusion; 2.1. Indoor frame profile; 2.2. Outdoor frame profile; 2.3. Indoor side cavity; 2.4. Reinforcing rib; 3.1. Indoor sash profile; 3.2. Outdoor sash profile; 3.3. Pressure strip mounting groove; 4.1. Indoor mullion profile; 4.2. Outdoor mullion profile; 5. Equal pressure sealing strip; 6. Indoor glass sealing strip; 7. Outdoor glass sealing strip; 8. Screen sash profile; 8.1. Slot; 9. Pressure strip; 10.1. Thermal insulation strip one; 10.2. Thermal insulation strip two; 11. Screen sash pressure line. Detailed Implementation
[0018] The technical solution of the present invention will be further explained and illustrated below through specific embodiments.
[0019] Example 1
[0020] A frame-sash flush, energy-saving aluminum alloy double inward opening system window, comprising frame profiles, sash profiles, mullion profiles, pressure line 1, and screen sash; The frame profile includes an interior frame profile 2.1 and an exterior frame profile 2.2, with a thermal insulation strip assembly provided between the interior frame profile 2.1 and the exterior frame profile 2.2; The frame interior profile has two chambers, with the interior chamber 2.3 being smaller and the wall forming a step; the frame interior profile 2.1 also has a hardware groove, and two reinforcing ribs 2.4 are provided on the side opposite to the hardware groove; The frame exterior profile 2.2 has two chambers; an extension wall is also formed in the frame exterior profile, a sealing strip installation groove is provided in the extension wall, and two reinforcing ribs 2.4 are provided on the side opposite to the extension wall; The fan profile includes an inner fan profile 3.1 and an outer fan profile 3.2, and a heat insulation strip assembly 2 is provided between the inner fan profile 3.1 and the outer fan profile 3.2; The mullion profile includes an interior mullion profile 4.1 and an exterior mullion profile 4.2, with a thermal insulation strip assembly 3 installed between the interior mullion profile 4.1 and the exterior mullion profile 4.2; Insulating glass is installed on one side of the frame profile, and a sash is installed on the other side of the frame profile. An equal pressure sealing strip 5 is installed between the second thermal insulation strip group and the first thermal insulation strip group. A mullion profile is installed on the other side of the sash. An equal pressure sealing strip 5 is installed between the second thermal insulation strip group and the third thermal insulation strip group. When installing insulated glass in the frame profile, a pressure line 1 is installed in the hardware groove; an interior glass sealing strip 6 is installed on the pressure line 1, and an exterior glass sealing strip 7 is installed in the sealing strip installation groove of the exterior frame profile 2.2. The pressure line structure includes a cavity 1.1, which is a right-angled trapezoid with two right-angled sides extending outwards. One side extends to form a connecting wall 1.2, which contacts the step of the frame interior profile 2.1 to make the interior surface flush. The other side extends to form the glass interior sealing strip mounting end. A mounting protrusion is also formed on the upper bottom, which is installed in the hardware groove of the frame interior profile. One side of the mounting protrusion 1.3 is a mounting hook, and the other side is a sealing strip groove. The screen is installed on the outside of the outer profile 3.2 of the screen. The screen profile 8 has two chambers, which are vertically connected and form a groove 8.1 on the inner side of the connection. The inner side is formed with a serrated surface. The screen is installed on the serrated surface and a screen pressing line 11 is installed. One end of the screen pressing line 11 is inserted into the groove 8.1, and the other end forms two adhesive strip mounting grooves. One adhesive strip contacts the outer profile 3.2 of the screen and the other adhesive strip contacts the screen.
[0021] The aforementioned heat insulation strip assembly includes heat insulation strip 10.1 and heat insulation strip 20.2; multiple cavities are respectively provided in heat insulation strip 10.1 and heat insulation strip 20.2; heat insulation strip 10.1 is a flat heat insulation strip; heat insulation strip 20.2 is a grooved heat insulation strip; in the side wall of the groove, one side wall has a T-shaped cross section; In the second set of heat insulation strips, one is heat insulation strip 10.1, and the outer wall of the other heat insulation strip protrudes outward, forming a cavity that is larger than the cavity of heat insulation strip 1. The aforementioned heat insulation strip group three consists of two heat insulation strips. Example 2
[0022] Based on the structure of Embodiment 1, the interior profile 3.1 of the fan includes a chamber; one side of the outer wall extends and forms a groove for the adhesive strip, which contacts the interior profile 2.1 of the frame; the other side of the outer wall forms a groove for mounting a pressure strip 9, on which a pressure strip 9 is mounted, and an interior adhesive strip 6 mounting end extends from the pressure strip 9. The outer fan profile 3.2 chamber is smaller than the inner fan profile 3.1 chamber, and extends to the glass outer sealing strip 7 installation end, and a screen fan profile 8 is installed on the outside of the outer fan profile 3.2. Example 3
[0023] Based on the structure of Embodiment 1 or Embodiment 2, the structures on both sides of the inner mullion profile 4.1 and the outer mullion profile 4.2 are symmetrically distributed. A groove 4.3 is provided on the inner mullion profile 4.1, and a pressure line 1 is installed in the groove 4.3. A small cavity also protrudes from the mullion profile, and the outer wall of the small cavity is flush with the outer wall of the pressure line. An adhesive strip is provided between the outer wall of the groove on the other side and the inner fan profile 3.1. The mullion outdoor profile 4.2 has two chambers side by side. A glass outdoor sealing strip 7 is installed in a groove in the extension wall on one side; a sealing strip is installed in the groove on the other side, which contacts the screen profile 8.
Claims
1. A frame-sash flush, ultra-energy-efficient aluminum alloy double inward opening system window, characterized in that, This includes framed profiles, fan-shaped profiles, mullion profiles, quilting, and mesh fans; The frame profile includes an interior frame profile and an exterior frame profile, and a thermal insulation strip is provided between the interior frame profile and the exterior frame profile; The frame interior profile has two chambers, with the interior chamber being smaller and the wall forming a stepped shape; the frame interior profile also has a hardware groove, and two reinforcing ribs are provided on the side opposite to the hardware groove; The frame exterior profile has two chambers; an extension wall is also formed in the frame exterior profile, a sealing strip installation groove is provided in the extension wall, and two reinforcing ribs are provided on the side opposite to the extension wall. The fan profile includes an indoor fan profile and an outdoor fan profile, and a heat insulation strip group two is provided between the indoor fan profile and the outdoor fan profile; The mullion profile includes an interior mullion profile and an exterior mullion profile, and a thermal insulation strip group three is provided between the interior mullion profile and the exterior mullion profile; Insulating glass is installed on one side of the frame profile, and a sash is installed on the other side of the frame profile. An equal pressure sealing strip is installed between thermal insulation strip group two and thermal insulation strip group one. A mullion profile is installed on the other side of the sash. An equal pressure sealing strip is installed between thermal insulation strip group two and thermal insulation strip group three. When installing insulated glass in the frame profile, a pressure line is installed in the hardware groove; an interior sealing strip is installed on the pressure line, and an exterior sealing strip is installed in the sealing strip installation groove of the exterior frame profile. The pressure line structure includes a cavity shaped like a right trapezoid, with two right-angled sides extending outwards. One side extends to form a connecting wall that contacts the stepped part of the frame's interior profile, making the interior surface flush. The other side extends outwards to form the glass interior sealing strip mounting end. A mounting protrusion is also formed on the upper bottom, which is installed in the hardware groove of the frame's interior profile. One side of the mounting protrusion is a mounting hook, and the other side is a sealing strip groove. The aforementioned screen is installed on the outside of the screen exterior profile; the screen profile has two chambers, which are vertically connected and have a groove formed on the inner side of the connection, and a serrated surface is formed on the inner side. The screen is installed on the serrated surface and a screen pressure line is installed. One end of the screen pressure line is engaged in the groove, and the other end has two adhesive strip mounting grooves. One adhesive strip contacts the screen exterior profile, and the other adhesive strip contacts the screen.
2. The frame-sash flush, ultra-energy-saving aluminum alloy double inward opening system window according to claim 1, characterized in that, The aforementioned interior profile of the fan includes a chamber; one side of the outer wall extends and forms a groove for the adhesive strip, which contacts the interior profile of the frame; the other side of the outer wall forms a groove for mounting a pressure strip, on which a pressure strip is mounted, and an interior adhesive strip mounting end extends from the pressure strip; The outdoor profile chamber of the fan is smaller than the indoor profile chamber of the fan, and extends to the outdoor glass strip installation end, and a screen fan profile is installed on the outside of the outdoor profile of the fan.
3. The frame-sash flush, ultra-energy-saving aluminum alloy double inward opening system window according to claim 1, characterized in that, The inner mullion profile and the outer mullion profile are symmetrically distributed on both sides. A groove is provided on the inner mullion profile, and a pressure line is installed in the groove. A small cavity protrudes from the mullion profile, and the outer wall of the small cavity is flush with the outer wall of the pressure line. An adhesive strip is provided between the outer wall of the groove on the other side and the inner mullion profile. The mullion outdoor profile has two chambers side by side, and the glass outdoor sealing strip is installed in the groove in one side of the extended wall; A rubber strip is installed in the groove on the other side, which contacts the fan profile.
4. The frame-sash flush, ultra-energy-saving aluminum alloy double inward opening system window according to claim 1, characterized in that, The heat insulation strip assembly includes heat insulation strip one and heat insulation strip two; multiple cavities are respectively provided in heat insulation strip one and heat insulation strip two; heat insulation strip one is a flat heat insulation strip; heat insulation strip two is a grooved heat insulation strip; in the side wall of the groove, one side wall has a T-shaped cross section. In the second set of heat insulation strips, one is heat insulation strip one, and the outer wall of the other heat insulation strip protrudes outward, forming a cavity that is larger than the cavity of heat insulation strip one; The aforementioned heat insulation strip group three consists of two heat insulation strips.