A kind of bridge-cutting heat insulation type extremely narrow frame equal-thickness casement window and its assembling method

Abstract

This invention provides a thermally broken, ultra-narrow frame, uniform thickness casement window and its assembly method. The thermally broken, ultra-narrow frame, uniform thickness casement window includes a frame, within which are an operable window assembly and a fixed window assembly. The operable window assembly includes an operable window frame and operable window glass, and the fixed window assembly includes a fixed window frame and fixed window glass. The adjacent sides of the operable and fixed window frames facing outwards have equal widths and both have outer frames of equal width. The operable and fixed window glass are on the same plane on their outward-facing sides. The operable, fixed, and frame thicknesses protruding from the glass are equal. A T-shaped mullion is provided at the side connection between the operable and fixed window frames, and a handle is provided on the side where the operable and fixed window frames connect. This application achieves consistent dimensions between the operable and fixed frame sizes, eliminating visual differences in the building facade, improving overall aesthetics, simplifying hardware structures, and enhancing thermal insulation performance.

Description

Technical Field

[0001] This invention relates to the technical field of casement windows, and in particular to a thermally broken, ultra-narrow frame, uniform thickness casement window and its assembly method. Background Technology

[0002] In the field of architectural doors and windows, casement windows have always been one of the most widely used window types. With the acceleration of urbanization and the booming development of the construction industry, architectural design concepts are constantly innovating, and people's requirements for the appearance and performance of buildings are becoming increasingly stringent. Modern architecture emphasizes integration with the urban environment, pursuing a simple and grand facade style, and public building-style facade design is gradually becoming the mainstream trend. This means that doors and windows, as an important component of buildings, must not only possess basic functions of lighting, ventilation, and protection, but also meet higher standards in terms of aesthetics and energy efficiency, in order to match the overall architectural style and enhance the quality and value of the building.

[0003] To meet the opening and closing requirements of doors and windows, traditional technologies employ various methods. Common insulated casement windows use relatively wide opening sash frame profiles, with significant differences in width and thickness between the opening sash frame and the fixed frame profiles. Some projects, aiming for a public building facade effect, use windows with a glass curtain wall-like appearance. Fully concealed frame windows connect the glass and frame profiles using structural adhesive, while semi-concealed frame windows place part of the frame profile behind the glass, with one side of the exposed frame using a recessed connection. These methods address the basic functional issues of doors and windows to some extent, but they also have their own characteristics and limitations.

[0004] However, these conventional methods using existing technologies have significant drawbacks. Ordinary casement windows have excessively wide opening sash frames, and the difference between these and the fixed frames disrupts the overall order and rhythmic division of the building facade, failing to meet the minimalist design requirements of public building facades. The thick metal profile opening frames occupy a large proportion of the facade's projected area, which is detrimental to the building's energy efficiency. Fully concealed frame windows pose safety hazards and have limited use; semi-concealed frame windows allow the thick inner profile frame to be seen through the glass, and the exposed outer frame's edges are difficult to finish, resulting in an unsightly construction appearance.

[0005] In summary, there is an urgent need for a casement window system that can achieve an extremely narrow frame visual effect, ensure structural safety, sealing performance and energy-saving effect, and make the appearance of the opening and fixed parts of the profile completely consistent, so as to meet the high performance and high aesthetic requirements of modern buildings, especially public buildings. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the defects in the prior art, thereby providing a thermally broken, ultra-narrow frame, equal-thickness casement window and its assembly method.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A thermally broken, ultra-narrow frame, uniform thickness casement window includes a frame, within which an opening window assembly and a fixed window assembly are provided. The opening window assembly includes an opening window frame and an opening window glass disposed within the opening window frame, and the fixed window assembly includes a fixed window frame and a fixed window glass disposed within the fixed window frame. The openable window frame and the fixed window frame have at least one set of adjacent sides, and the width of the adjacent sides facing the outside is equal. Both the openable window frame and the fixed window frame have an outer frame located outside and an inner frame located inside, and the corresponding outer frames have equal widths. The operable window glass and the fixed window glass are on the same plane on the outdoor side, and the operable window frame, the fixed window frame and the frame are all of equal thickness and protrude from the outdoor side of the operable window glass or the fixed window glass. Both the opening window frame and the fixed window frame have a mullion profile at their side connections. The mullion profile has a T-shaped structure. One side of the opening window frame and one side of the fixed window frame are respectively embedded in the two sides of the mullion profile. The side of the opening window frame connected to the mullion profile has a handle.

[0008] In the above scheme, by ensuring that the width of the adjacent sides of the operable window frame and the fixed window frame facing the outside is equal, and that both have outer frames of equal width, the operable and fixed windows present a consistent visual width on the exterior facade. This breaks the traditional difference where the operable window frame is significantly wider than the fixed frame, achieving continuity and uniformity in the building facade's segmentation. By ensuring that the exterior sides of the operable and fixed window glass are on the same plane, and that all window frames and borders protrude from the glass by an equal thickness, it is ensured that all visible frames of the entire window have the same visual depth when viewed from the outside. This creates an extremely simple and flat "ultra-narrow frame" appearance, significantly enhancing the sense of order and sophistication of the building facade. Furthermore, by employing a T-shaped mullion profile and embedding the sides of the operable and fixed window frames on its respective sides, this structure not only achieves a stable connection and precise alignment of the operable and fixed sashes in a coplanar position, but its T-shaped cross-section also facilitates stress distribution and sealing. Simultaneously, the T-shaped structure effectively reduces the width of both the operable and fixed window frames, allowing for a slight increase in depth to facilitate the installation of certain components, ensuring that the extremely narrow, uniform viewing angle outside the window is not affected. Placing the handle on the side where the operable window frame connects to the mullion profile, rather than on the front of the window frame, greatly simplifies the internal space requirements of the window sash, providing a structural possibility for achieving an extremely narrow interior frame width, while also optimizing the hardware transmission path. In summary, this solution integrates design from multiple dimensions, including the width, depth, flatness, and connection structure of the exterior visible surface, collaboratively achieving the core effects of an extremely narrow frame, visual unity, and structural reliability.

[0009] Preferably, the side of the openable window frame that fits against the frame has a first profile assembly; The first profile assembly includes: The second window sash profile is located on the indoor side. The frame has a first frame profile connected to the second window sash profile. The second window sash profile has a first end connected to the first frame profile and a second end connected to the operable window glass. The first outer frame is located on the outdoor side. The second window sash profile has a first connector on one side of its second end. The first outer frame is inserted into the first connector. The side of the first outer frame facing the outdoors has a horizontal side.

[0010] In the above solution, by setting a first profile assembly consisting of a second window sash profile and a first outer frame, and a first frame profile, and by using a structure in which the first outer frame is inserted into a first connector, modular plug-in installation between the operable window sash and the frame is achieved. This not only makes installation and disassembly on the exterior side more convenient and easier to maintain, but also ensures visual continuity and flatness of the exterior facade at the joint between the operable sash and the frame, without any abrupt steps or gaps, through the design of the horizontal side of the first outer frame facing the exterior, further enhancing the simple and beautiful effect of the ultra-narrow frame. At the same time, the second window sash profile, as a supporting component connecting the first frame profile and the operable window glass, provides a foundation for the subsequent installation of thermal insulation and sealing structures on its interior side, creating conditions for improving the overall thermal insulation and airtightness performance of the window.

[0011] Preferably, the frame further has a first side profile located on the outdoor side, the first frame profile having a first end connected to the second window sash profile and a second end close to the first side profile, a first thermal insulation strip connecting the first side profile and the second end of the first frame profile, and a first adhesive strip between the first frame profile and the side of the outer buckle frame away from the operable window glass.

[0012] In the above solution, a composite sealing and thermal insulation system is constructed by connecting a first thermal insulation strip between the first frame profile and the first side profile, and by setting a first adhesive strip between the first frame profile and the first outer frame. The first thermal insulation strip effectively blocks direct metal contact between the first frame profile and the first side profile on the outside, cutting off the main heat conduction bridge on this path and significantly improving the thermal insulation performance of the frame structure itself. At the same time, the first adhesive strip forms a flexible elastic sealing layer between the first frame profile and the first outer frame, which not only compensates for installation tolerances and thermal expansion and contraction deformation between components, ensuring tightness of the connection, but more importantly, constitutes a reliable barrier to prevent outdoor air and rainwater from penetrating inward. By integrating structural support, thermal break insulation, and dynamic sealing functions into a simple structure, the energy-saving effect and waterproof sealing reliability of the entire window are fundamentally enhanced while ensuring that the extremely narrow visual effect is not affected.

[0013] Preferably, the connection between the second window sash profile and the first connector has a second thermal insulation strip.

[0014] In the above solution, by adding a second thermal break strip at the connection between the second window sash profile and the first connector, the direct metal-to-metal heat conduction path from the first connector on the outside to the second window sash profile on the inside at this node is effectively blocked. This structure compensates for any localized thermal bridges that may exist in the profile assembly and is an important supplement to the macroscopic thermal break system established by the first thermal break strip. This significantly improves the overall thermal performance of the operable window sash in the closed state, reduces localized heat loss at the connection point, effectively prevents condensation, and does not increase any visible profile width or complexity, ensuring the unity of the visual purity of the ultra-narrow frame and the high-performance thermal insulation effect.

[0015] Preferably, a first installation space is formed between the second window sash profile, the first connector, and the first outer buckle frame on the side facing the operable window glass, and one end of the operable window glass is inserted into the first installation space; The first installation space is provided with a first structural adhesive along the edge of the operable window glass, and there is a first sealant between the first installation space and the operable window glass. A third adhesive strip is provided between the first outer frame and the operable window glass, and foam rods and first sealant are provided in the gaps within the first installation space.

[0016] In the above solution, a first installation space specifically designed to accommodate the glass end is constructed between the second window sash profile, the first connector, and the first outer frame. A multi-layered composite process is employed, using a first structural adhesive for primary structural bonding, a first sealant for flexible end sealing, and foam rods for gap filling and support, to achieve high-performance, high-reliability installation of the operable window glass on the frame side. This structure firstly provides strong structural adhesion through the first structural adhesive, ensuring a firm connection and load transfer between the glass and the profile components, thus improving overall wind pressure resistance and safety performance. Secondly, the first sealant forms a continuous elastic sealing layer at the end of the installation space, effectively compensating for manufacturing and installation tolerances and blocking the path of moisture and air penetration along the glass end face. The foam rod filling not only provides support and positioning, preventing excessive colloid collapse, but also optimizes the curing environment and stress distribution of the colloid. These three elements work synergistically to construct a high-performance glass installation system integrating structural fixation, multiple seals, and stress buffering within an extremely narrow profile cross-section, thereby significantly improving the overall window's sealing durability, structural safety, and long-term reliability while ensuring aesthetic appeal.

[0017] Preferably, the side of the openable window frame that is attached to the fixed window frame has a second profile assembly; The second profile assembly includes: The first window sash profile is located on the indoor side. The first window sash profile is connected to the mullion profile. The fixed window frame has a first fixed profile connected to the first window sash profile through the mullion profile. The first window sash profile has a first end connected to the mullion profile and a second end connected to the operable window glass. The first fixed profile has a first end connected to the mullion profile and a second end connected to the fixed window glass. The second outer frame is located on the outdoor side. A second connector is provided on one side of the second end of the first window sash profile. The second outer frame is inserted into the second connector. The side of the second outer frame facing the outdoors has a horizontal side.

[0018] In the above scheme, by setting up a second profile assembly consisting of a first window sash profile and a second outer frame, and cooperating with a first fixed profile, and using a mullion profile as the structural hub, an integrated and modular connection between the operable window and the fixed window on adjacent sides is achieved. The first window sash profile and the first fixed profile are independently connected to the mullion profile on the indoor side, forming a clear and direct dual-path mechanical transmission system, ensuring excellent wind pressure resistance and structural stability at this node. Simultaneously, on the outdoor side, the second outer frame is inserted into the second connector, achieving rapid, precise, and robust assembly. Its horizontal side facing the outdoor side ensures a completely flat and continuous facade effect at the outdoor joint between the operable window and the fixed window, without any visual breaks or protrusions, greatly enhancing the visual unity and minimalist aesthetics of the entire window. This structure integrates reliable structural load-bearing capacity, convenient assembly technology, and an ultimate aesthetic effect, making it one of the key design features for achieving an "ultra-narrow frame" and superior performance.

[0019] Preferably, the fixed window frame has a third outer buckle frame located on the outdoor side, the third outer buckle frame being correspondingly arranged with the second outer buckle frame, the outdoor side of the third outer buckle frame having a horizontal side edge, and the outdoor side surface of the second outer buckle frame having the same width as the outdoor side surface of the third outer buckle frame. A third connector is provided between the second outer buckle frame and the third outer buckle frame, the third outer buckle frame is fastened to the third connector, and a second adhesive strip is provided between the second outer buckle frame and the third connector.

[0020] In the above solution, by setting a third outer frame corresponding to the second outer frame of the operable window frame for the fixed window frame, and ensuring that the width of both sides facing the outside is consistent and horizontal, a seamless visual width and perfect uniformity in form are achieved at the joint between the operable and fixed sashes on the outside side, eliminating the visual break or width difference commonly seen in traditional window types at this location. Furthermore, by adding a third connector and adopting a composite connection method of "the third outer frame and the third connector snapping together" and "a second adhesive strip between the second outer frame and the third connector," this structure achieves a dual function: firstly, the snapping method provides a robust and reliable mechanical connection, ensuring the integrity and stability of the inter-sash structure; secondly, the second adhesive strip forms a flexible dynamic sealing layer between the two, effectively compensating for tolerances and deformations between components, and constituting another crucial sealing barrier against rainwater and dust penetration, significantly improving the long-term water tightness and air tightness of the entire window at the inter-sash gap.

[0021] Preferably, the connection between the second connector and the mullion profile has a third heat insulation strip.

[0022] In the above solution, by setting a third thermal insulation strip at the connection between the second connector and the mullion profile, another important heat conduction path from the second connector on the outside to the inside via the mullion profile is specifically blocked. This structure acts on the critical "T-shaped node" connecting the operable and fixed window sashes, and together with the first and second thermal insulation strips located in other positions on the window frame, it forms a coherent and complete "multi-level thermal break insulation system." This solves the problem of concentrated thermal bridging that is difficult to avoid at this complex node in traditional window types, and significantly reduces the overall linear heat transfer coefficient through the mullion and connectors. As a result, the entire window achieves uniform and excellent thermal insulation performance in the interface area between the operable and fixed sashes, effectively preventing localized low temperatures and condensation that may occur at this location. Thus, while ensuring the structural strength of the extremely narrow frame, it greatly improves the thermal performance and all-weather comfort of the entire window, achieving high-level energy-saving requirements.

[0023] Preferably, a second installation space is formed between the first window sash profile, the second connector, and the second outer buckle frame on the side facing the operable window glass. One end of the operable window glass is inserted into the second installation space. A second structural adhesive is provided along the edge of the operable window glass in the second installation space. A second sealant is provided between the end of the second installation space and the operable window glass. Foam rods and the second sealant are provided in the gaps within the second installation space. A third installation space is formed between the first fixing profile, the third connector, and the third outer buckle frame on the side facing the fixed window glass. One end of the fixed window glass is inserted into the third installation space. A third adhesive strip is provided along the edge of the fixed window glass in the third installation space. A third sealant is provided between the third installation space and the fixed window glass. Foam rods and the third sealant are provided in the gaps within the third installation space.

[0024] In the above solution, independent second and third installation spaces are constructed for operable and fixed window glass, respectively. A triple-layer composite process of "structural adhesive bonding, sealant end sealing, and foam rod filling support" is employed to achieve high-performance, high-durability installation of the glass within an extremely narrow frame. This design firstly provides strong and durable structural adhesion through the second structural adhesive and third sealing strip, ensuring reliable connection and load transfer between the glass and its respective profile components, meeting the stringent requirements of narrow-frame windows for wind pressure resistance and other mechanical properties. Secondly, the second and third sealants form a continuous, flexible final sealing layer at the ends of their respective installation spaces, effectively blocking potential paths for moisture and air intrusion along the glass end face. This, combined with the sealing strip system on the exterior side, constitutes multiple lines of waterproof sealing. The foam rod filling not only provides stable support and precise installation positioning for the glass, preventing improper flow and collapse of the adhesive during curing, but also optimizes the stress distribution within the adhesive joint, improving the long-term durability of the adhesive connection. This integrated installation structure successfully balances the three core requirements of structural safety, sealing, and long-term reliability within the extremely limited profile cross-sectional space, and is the key technological foundation for ensuring the excellent comprehensive performance of ultra-narrow frame casement windows.

[0025] An assembly method for a thermally broken, ultra-narrow frame, equal-thickness casement window, applicable to the aforementioned thermally broken, ultra-narrow frame, equal-thickness casement window, the assembly method comprising: The operable window glass is assembled with the first profile component and the second profile component of the operable window frame, and structural adhesive, sealant and foam rod are applied in the first installation space and the second installation space to prefabricate an integral operable window component unit. Assemble the frame with the fixed window frame, and install the fixed window frame onto the mullion profile; Install the assembled frame and fixed window frame into the window opening, and then install the prefabricated opening window component unit into place, so that one side is connected to the frame and the other side is connected to the mullion profile. Install the fixed window glass into the third installation space of the fixed window frame and apply structural adhesive and sealant. Then install and fasten each outer frame, completing all the sealing and sealing processes.

[0026] In the above solution, a logically clear and efficiently implemented systematic assembly process is constructed by breaking down the complex on-site installation process into four distinct stages: unit prefabrication, frame assembly, on-site installation, and final finishing. The core advantage of this method lies in its "unitized prefabrication" concept: by precisely assembling the operable window glass with the first and second profile components in a factory environment and completing the application of structural adhesives and sealants, a highly complete "operable window component unit" is formed. This ensures that critical structural bonding and multiple seals are completed under controlled environmental, process, and quality conditions, significantly improving the overall window's airtightness, watertightness, and long-term reliability, while greatly reducing the impact of on-site wet work and construction quality on the final performance.

[0027] During on-site installation, the prefabricated units are modularly connected to the pre-assembled frame and fixed window frame, making the installation process like building blocks. This significantly improves installation efficiency and accuracy, reduces on-site construction difficulty, and decreases reliance on skilled workers. In particular, by connecting one side of the operable window component unit to the frame and the other side to the mullion profile, the operable sash is quickly positioned and securely installed, ensuring a tight alignment with the fixed parts.

[0028] Finally, the installation of the fixed window glass and the fastening of each outer frame serve as the finishing touches. This not only completes the physical sealing of the entire window but also fully activates the multi-layered sealing and thermal insulation system guaranteed by the design through the final sealing and sealing process. This phased and modular assembly method is the key technological support for this ultra-narrow frame casement window to achieve excellent appearance and high performance while ensuring convenient construction, consistent quality, and a high yield rate.

[0029] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The width of the adjacent sides of the operable window frame and the fixed window frame, the thickness of the corresponding outer frame and the protruding glass are equal, forming an extremely narrow frame, so that the building facade is divided into "no breaks and no differences", which is in line with the overall minimalist design style of public building facades and enhances the overall aesthetics of the building. 2. The handle is installed on the side of the opening window frame, which greatly simplifies the transmission structure, makes the hardware transmission force more direct and efficient, and at the same time meets the design requirements of ultra-narrow frame outward opening window, increasing the light-receiving surface of the outward opening window; 3. The area of ​​the window frame profile is reduced compared to the total window area, and the handle and transmission hardware are set in the inner frame to avoid heat conduction between the inside and outside, resulting in better thermal insulation and energy-saving effects. 4. The opening window frame and the fixed window frame are connected on the side by T-shaped mullions, which makes the structure stable and ensures the overall stability of the window; 5. The operable window glass and the fixed window glass are on the same plane on the outside side, making the window appearance more flat and uniform and enhancing the overall sense of the building facade. 6. The separate embedded connections between the openable window frame and the mullion profile, the fixed window frame and the mullion profile, and the insertion connection between each profile component facilitate assembly and improve installation efficiency. 7. Each installation space is filled with adhesive strips, sealant, and foam rods to ensure the airtightness and waterproofness of the window, thereby improving its performance. Attached Figure Description

[0030] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure of the casement window in this embodiment.

[0032] Figure 2 for Figure 1 The first section view at point AA.

[0033] Figure 3 for Figure 1 The second section view at point AA.

[0034] Figure 4 for Figure 1 The third section view at point AA.

[0035] Figure 5 for Figure 1 The first section view at point BB.

[0036] Figure 6 for Figure 1 The second section view at point BB.

[0037] Figure 7 for Figure 1 The third section view at point BB.

[0038] Figure 8 This is an exploded view of the connection structure of the openable window in this embodiment.

[0039] Explanation of reference numerals in the attached figures: 1. Frame; 11. First frame profile; 12. First side profile; 21. Open the window frame; 22. Open the window glass; 211. First window sash profile; 212. Second window sash profile; 213. First outer frame; 214. Second outer frame; 215. First connector; 216. First installation space; 217. Second connector; 218. Third connector; 219. Second installation space; 220. Third installation space; 31. Fix the window frame; 32. Fix the window glass; 311. First fixed profile; 312. Third outer snap frame; 313. Fourth outer snap frame; 4. Mullion profiles; 5. Holding hands; 61. First thermal insulation strip; 62. Second thermal insulation strip; 63. Third thermal insulation strip; 64. Fourth thermal insulation strip; 71. First adhesive strip; 72. Second adhesive strip; 73. Third adhesive strip; 81. First structural adhesive; 82. Second structural adhesive; 91. First sealant; 92. Second sealant; 93. Third sealant; 94. Fourth sealant; 10. Hinges; 20. Hard pads; 30. Foam rods. Detailed Implementation

[0040] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] Existing insulated casement windows generally have a large opening sash frame width (usually ≥70mm) and a narrow fixed frame, resulting in the opening edge frame protruding significantly on the facade, disrupting the continuity of the building facade's segmentation and overall sense of order. At the same time, the high thermal conductivity and large projected area of ​​the profiles are not conducive to building energy conservation. Ordinary concealed frame windows rely solely on structural adhesive for load-bearing, which limits their safety. Although semi-concealed frame windows improve the visual effect, they still have problems such as the inner frame profile outline being visible through the glass on the concealed frame side, difficulty in finishing the profile ends on the exposed frame side, and inconsistent dimensions between the opening frame and the fixed frame profiles, making it difficult to achieve a unified facade texture.

[0044] See Figures 1 to 7 This invention provides a thermally broken, ultra-narrow frame, uniform thickness casement window, including a frame 1. The frame 1 contains an operable window assembly and a fixed window assembly. The operable window assembly includes an operable window frame 21 and operable window glass 22 disposed within the operable window frame 21. The fixed window assembly includes a fixed window frame 31 and fixed window glass 32 disposed within the fixed window frame 31. The operable window frame 21 and the fixed window frame 31 have at least one set of adjacent sides, and the adjacent sides facing outwards have equal widths. Both the operable window frame 21 and the fixed window frame 31 have an outer frame located outdoors and an inner frame located indoors, with corresponding outer frames having equal widths. The operable window glass 22 and the fixed window glass 32 are on the same plane on their outdoor sides. The thickness of the operable window frame 21, the fixed window frame 31, and the frame 1, which protrude outdoors from the operable window glass 22 or the fixed window glass 32, are equal. Both the opening window frame 21 and the fixed window frame 31 have a mullion profile 4 at their side connection points. The mullion profile 4 has a T-shaped structure. One side of the opening window frame 21 and one side of the fixed window frame 31 are respectively embedded in the two sides of the mullion profile 4. The side of the opening window frame 21 connected to the mullion profile 4 has a handle 5.

[0045] Specifically, such as Figure 1 As shown, frame 1 is a rectangular frame structure, with the upper left corner of the inner side of frame 1 being an opening window assembly (in other embodiments, the opening window assembly may also be located in other positions, subject to the actual design). The rest is composed of fixed window assemblies. The opening window assembly, as the movable and openable part of the entire window, consists of an opening window frame 21 and the opening window glass 22 that it encloses and fixes. The fixed window assembly, as the immovable part of the entire window, consists of a fixed window frame 31 and the fixed window glass 32 that it encloses and fixes.

[0046] In a typical implementation, such as Figure 1As shown, the operable window assembly and the fixed window assembly are arranged adjacent to each other in a horizontal or vertical direction, and they share at least one common boundary line. At this boundary, the visible facade width of the sides of the operable window frame 21 and the fixed window frame 31 facing the outside (i.e., the exterior of the building) is designed to be completely equal. This ensures that when viewed from the outside, the frame edges of the operable and fixed sashes appear visually continuous without any abrupt changes in width.

[0047] Furthermore, both the operable window frame 21 and the fixed window frame 31 have clearly distinguishable outer and inner frame sections. The outer frame refers to the profile structure on the exterior side of the window frame, while the inner frame refers to the profile structure on the interior side. For each window frame, the width of its outer frame is equal. This design of equal width for both the inner and outer frames, combined with the aforementioned design of equal exterior width on adjacent sides, ensures visual consistency of all frame lines on the facade.

[0048] From a cross-sectional perspective, the exterior side of the operable window glass 22 and the exterior side of the fixed window glass 32 are located in the same vertical plane (or the inclined plane required by the design). Simultaneously, the thickness (i.e., the amount of protrusion of the frame in the direction perpendicular to the glass plane) of the operable window frame 21, the fixed window frame 31, and the frame 1, located on the exterior side and protruding from the glass plane, is equal. This results in a highly flat and orderly exterior facade for the entire window, with all frame lines protruding only very narrowly and uniformly, achieving the visual effect of an "extremely narrow frame."

[0049] In terms of structural connection, a mullion profile 4 is provided at the intersection of the adjacent sides of the operable window frame 21 and the fixed window frame 31. This mullion profile 4 is designed with a "T"-shaped cross-section, with the vertical portion of the "T" serving as the main support and connector. The ends of the adjacent side profiles of the operable window frame 21 are embedded and fixed in a groove or connecting position on one side of the "T"-shaped mullion, while the ends of the adjacent side profiles of the fixed window frame 31 are correspondingly embedded and fixed in the other side of the "T"-shaped mullion. This structure physically separates and securely connects the operable and fixed window frames. The T-shaped mullion profile 4 converts width into thickness, effectively reducing the visual width of the exterior borders of the operable window frame 21 and the fixed window frame 31. In practical operation, this achieves an extremely narrow border of at least 32.5mm, far lower than the existing borders exceeding 70mm.

[0050] Regarding the operating mechanism, the handle 5 is positioned on the specific side where the opening window frame 21 connects to the mullion profile 4. This handle 5 drives the locking and opening mechanism of the window sash. Its side-mounted layout helps minimize the width of the interior side (inner frame) of the window frame. The handle 5 is directly installed on the side wall profile of the opening window frame 21 via embedded parts or screws. The specific connection structure between the handle and the profile is as follows... Figure 3 and Figure 8As shown, this is conventional existing technology, which will not be described in detail here.

[0051] The aforementioned thermally broken, ultra-narrow frame, uniform thickness casement window, through the specific structural limitations described above, achieves a situation where, when viewed from the outside, the width, thickness, and glass surface flatness of the operable and fixed sash frames are completely consistent, while the width is much lower than the existing casement window frame width. Furthermore, it achieves a stable connection through a T-shaped mullion and optimizes the inner frame width through side-mounted handles. This thermally broken, ultra-narrow frame, uniform thickness casement window achieves the goal of a simple, unified, and high-quality appearance design for the building facade.

[0052] The following description, in conjunction with the accompanying drawings and specific embodiments, provides a more detailed account of the thermally broken, ultra-narrow frame, equal-thickness casement window provided by the present invention.

[0053] In one specific implementation, please refer to Figure 2 and Figure 5 The opening window frame 21 has a first profile assembly on one side of the frame 1. The first profile assembly includes a second window sash profile 212 and a first outer buckle frame 213. The second window sash profile 212 is located on the indoor side. The frame 1 has a first frame profile 11 connected to the second window sash profile 212. The second window sash profile 212 has a first end connected to the first frame profile 11 and a second end connected to the opening window glass 22. The first outer buckle frame 213 is located on the outdoor side. A first connector 215 is provided on one side of the second end of the second window sash profile 212. The first outer buckle frame 213 is inserted into the first connector 215. The side of the first outer buckle frame 213 facing the outdoors has a horizontal side.

[0054] Specifically, the first profile component is a structure that achieves the connection, sealing, and visual transition between the operable window sash and the window opening frame. For example... Figure 2 and Figure 5 As shown, the first profile assembly includes a second window sash profile 212 and a first outer frame 213. The second window sash profile 212 is a long strip structure with a second end close to the operable window glass and a first section facing the interior. The first frame profile 11 is a rectangular frame profile with an extended connecting arm on one side. The first frame profile 11 is connected to the first section of the second window sash profile 212 through the connecting arm, and a first adhesive strip 71 is provided between the two.

[0055] The second end of the second window sash profile 212 near the frame 1 also has a snap-fit ​​arm. There is a second heat insulation strip 62 between the snap-fit ​​arm and the first connector 215. The second heat insulation strip 62 is snapped into the snap-fit ​​arm and one end of the first connector 215 respectively. The other end of the first connector 215 is provided with a slot. The first outer buckle frame 213 is an elastic structure, and its middle long strip is inserted into the slot.

[0056] It should be understood that the second window sash profile 212 refers to the metal profile used to form the main load-bearing structure of the operable window frame 21 on the indoor side. Its material is aluminum alloy or thermally broken aluminum alloy, and its cross-sectional shape is set according to the actual situation. For example, it is a multi-cavity structure with hollow reinforcing ribs to balance strength and lightness. The second window sash profile 212 is an extruded profile, and its surface is treated with anodizing, electrophoretic coating or powder coating.

[0057] The first frame profile 11 refers to the interior side profile part of the frame 1 that directly connects with the operable window frame 21. The first frame profile 11 is a thermally broken aluminum alloy profile, and a first thermal insulation strip 61 is embedded inside to block the heat conduction path. A first rubber strip 71 is provided at the connection between the first frame profile 11 and the second window sash profile 212, as well as between the first side profile 12 and the first outer buckle frame 213. The first rubber strip 71 facilitates buffering and sealing of the operable window assembly when it is opened and closed. The first rubber strip 71 can be made of EPDM rubber strip.

[0058] The first connector 215 is an independent metal or engineering plastic component located on one side of the second end of the second window sash profile 212. Its function is to provide a plug-in support and a limiting reference for the first outer frame 213. The first connector 215 has a long strip cross-section structure, with a guide groove or snap-fit ​​structure at one end to guide and lock the insertion of the first outer frame 213. The material of the first connector is aluminum alloy or stainless steel, and the surface is treated with anti-corrosion. A second thermal insulation strip 62 is provided at the connection between the first connector and the second window sash profile 212. The second thermal insulation strip 62 is a polyamide 66 (PA66) reinforced nylon strip, and its width is set according to the actual thermal performance requirements.

[0059] The first outer buckle frame 213 refers to a decorative and functional profile located on the outside of the opening window frame 21, used to cover the end of the profile and achieve appearance finishing and sealing functions; the first outer buckle frame 213 is an aluminum alloy profile, and its surface treatment is consistent with that of the second window sash profile 212; the first outer buckle frame 213 is inserted into the guide groove provided in the first connector 215, and the insertion depth is set according to the actual situation. The side of the first outer buckle frame 213 facing the outside has a horizontal side, which refers to the planar structure whose outermost edge extends horizontally, and its width is consistent with the corresponding outer buckle structure of the adjacent fixed window frame 31 to achieve visual continuity of the facade; a first adhesive strip 71 is provided between the first outer buckle frame 213 and the first frame profile 11, and its cross-sectional shape is D-shaped, P-shaped or composite lip structure, used to form an elastic compression seal in the insertion state.

[0060] Based on any of the above implementation methods, please refer to Figure 2 and Figure 5The frame 1 also has a first side profile 12 located on the outdoor side. The first frame profile 11 has a first end connected to the second window sash profile 212 and a second end close to the first side profile 12. A first heat insulation strip 61 is connected between the first side profile 12 and the second end of the first frame profile 11. A first adhesive strip 71 is provided between the first frame profile 11 and the side of the first outer buckle frame 213 away from the operable window glass 22.

[0061] Specifically, in the cross-sectional direction perpendicular to the glass plane, the frame 1 is mainly composed of a first frame profile 11 located on the inner side (closer to the interior) and a first side profile 12 located on the outer side (closer to the exterior). The second end of the first side profile 12 is not directly rigidly connected to the second end of the first frame profile 11, but is bridged by a first thermal insulation strip 61. The first thermal insulation strip 61 is made of a non-metallic material with low thermal conductivity (such as nylon PA66 with glass fiber). It physically blocks the direct metal contact path between the first frame profile 11 and the first side profile 12, thereby forming an effective "thermal bridge" at this location. This significantly reduces the heat conduction from the exterior to the interior through the frame profile itself, improving the overall thermal insulation performance of the window.

[0062] Meanwhile, a first sealing strip 71 is provided between the first frame profile 11 and the first outer frame 213, on the side away from the operable window glass 22. This first sealing strip 71 is typically made of a highly elastic material such as EPDM. Its function is to form a flexible and durable sealing contact surface between the first frame profile 11 and the first outer frame 213. This seal effectively prevents outdoor air and rainwater from intruding through the gap between the first outer frame 213 and the frame body, improving the water tightness and air tightness of the entire window at this connection point.

[0063] Based on any of the above implementation methods, please refer to Figure 2 and Figure 5 A first installation space 216 is formed between the second window sash profile 212, the first connector 215 and the first outer frame 213 on the side facing the operable window glass 22. One end of the operable window glass 22 is inserted into the first installation space 216. A first structural adhesive 81 is provided along the edge of the operable window glass 22 in the first installation space 216. A first sealant 91 is provided between the opening end of the first installation space 216 and the operable window glass 22. Foam rods 30 and first sealant 91 are provided in the gaps in the first installation space 216.

[0064] Specifically, such as Figure 2As shown, the second window sash profile 212, the first connector 215, and the first outer buckle frame 213 form a U-shaped first installation space 216 on the side facing the operable window glass 22, thereby covering one side of the operable window glass 22. At the same time, the first installation space 216 is filled with multiple sets of structural adhesive to improve the installation stability of the operable window glass 22. Its U-shaped structure and the setting of structural adhesive effectively improve the installation stability of the operable window glass 22. The two opening ends of the first installation space 216, one on the outdoor side and the other on the indoor side, are sealed by the first sealant 91, forming a double seal between the indoor and outdoor sides.

[0065] It should be understood that the space is enclosed by the inner flange of the second window sash profile 212, the specific outline of the first connector 215, and the inner wall of the first outer frame 213, and its shape and size are precisely controlled to closely fit the end thickness of the operable window glass 22.

[0066] During the installation process, the end of the operable window glass 22 is first smoothly inserted into the first installation space 215. Then, a first structural adhesive 81 (indoor side) and a third adhesive strip 73 (outdoor side) are applied along the gap between the glass edge and the inner wall of the profile. The first structural adhesive 81 is typically a high-performance silicone structural sealant, whose core function is to provide a strong and durable structural bond, reliably transferring the glass's load (such as wind pressure and its own weight) to the supporting frame formed by the second window sash profile 212 and the first connector. This is crucial for ensuring the safety of narrow-frame windows.

[0067] At the two ends of the first installation space 216 near the indoor and outdoor areas (i.e., the starting and ending points of the glass insertion direction), a first sealant 91 is filled. This first sealant 91 is mostly an elastic sealant, and its main function is to form a flexible end sealing layer, effectively blocking the path that moisture and air may enter longitudinally along the glass end face, and together with the first structural adhesive 81, it constitutes a "wrap-around" seal for the glass end.

[0068] Furthermore, foam rods 30 and first sealant 91 are pre-placed or filled in the remaining gaps inside the first installation space 216 that are not completely filled with adhesive. The foam rods 30 are typically closed-cell polyethylene foam material, and they serve multiple functions: first, as a backing material, they control the application shape and thickness of the structural adhesive and sealant, preventing the adhesive from adhering to three sides and ensuring ideal curing; second, they provide elastic support, preventing hard contact between the glass and the rigid profile, and buffering minor displacements caused by temperature changes or external forces; third, they also have a certain degree of air barrier and auxiliary thermal insulation function.

[0069] Through the coordinated arrangement of the first structural adhesive 81, the first sealant 91, the third adhesive strip 73, and the foam rod 30 within the first installation space 216, the three major functions of structural fixing, end flexible waterproof sealing, and stress buffer support are successfully integrated within the extremely limited profile cross-sectional space. This ensures the long-term stability of the glass installation, excellent sealing performance, and superior fatigue resistance while meeting the visual effect of an extremely narrow frame.

[0070] In one specific implementation method, please refer to Figure 3 and Figure 6 The opening window frame 21 has a second profile assembly on one side that fits into the fixed window frame 31. The second profile assembly includes a first window sash profile 211 and a second outer buckle frame 214. The first window sash profile 211 is located on the indoor side and is connected to the mullion profile 4. The fixed window frame 31 has a first fixed profile 311 connected to the first window sash profile 211 through the mullion profile. The first window sash profile 211 has a first end connected to the mullion profile 4 and a second end connected to the opening window glass 22. The first fixed profile 311 has a first end connected to the mullion profile 4 and a second end connected to the fixed window glass 32. The second outer buckle frame 214 is located on the outdoor side. A second connector 217 is provided on one side of the second end of the first window sash profile 211. The second outer buckle frame 214 is inserted into the second connector 217. The side of the second outer buckle frame 214 facing the outdoors has a horizontal side.

[0071] Specifically, this part is the connection structure between the operable window assembly and the fixed window assembly. It is mainly installed by a T-shaped mullion profile 4. The mullion profile 4 is a T-shaped structure that is inserted from the indoor side. A fourth thermal break strip 64 is pre-installed on one side. The first window sash profile 211 is located on one side of the mullion profile 4, and the first fixed profile 311 is located on the other side of the mullion profile 4.

[0072] The mullion profile 4 has a slot on the side facing the first fixed profile 311. One side of the first fixed profile 311 is fastened to one side of the mullion profile 4. The first window sash profile 211 is located on the other side of the mullion profile 4. A second adhesive strip 72 is provided at the connection between the first fixed profile 311 and the mullion profile 4 to facilitate the opening and closing of the window assembly.

[0073] It should be understood that the first window sash profile 211 refers to the main load-bearing profile on the interior side of the opening window frame 21 near the fixed window frame 31. It is an aluminum alloy profile or a thermally broken aluminum alloy profile, and its cross-sectional shape is set as a multi-cavity structure according to the actual stress requirements, such as a rectangular cavity structure with reinforcing ribs. Among them, the first fixed profile 311 refers to the interior side profile of the fixed window frame 31 that is connected to the mullion profile 4 and corresponds to one side of the opening window frame 21. The first end of the first fixed profile 311 is provided with a fitting structure that matches the other side of the mullion profile 4 to realize the fixation of the mullion profile 4.

[0074] It should be noted that the first window sash profile 211 is similar to the second window sash profile 212; they can be of the same structure and are arranged around the outer periphery of the operable window glass. A handle 5 is provided on one side of the first window sash profile 211 (e.g., Figure 3 As shown), the specific hardware locking point structure of the handle 5 is the same as that of the prior art, and will not be described again here. The opening window assembly has a hinge structure at the connection between the two sides of the frame 1 or the fixed window assembly in the height direction, such as... Figure 8 As shown, this part of the structure uses existing technology to open the window component, so it will not be described in detail here.

[0075] The structural load-bearing portion located on the interior side is jointly composed of the first window sash profile 211 and the first fixing profile 311. The first window sash profile 211 serves as the main frame of the operable window sash on this side. One end (the first end) is connected to the side of the mullion profile 4, thereby transferring the load of the operable sash to the mullion; the other end (the second end) forms part of the profile structure used to support and fix the operable window glass 22. Correspondingly, the first fixing profile 311 serves as the main component for fixing the window frame 31 on this side. One end (the first end) is also connected and fixed to the other side of the mullion profile 4, thereby anchoring the fixed portion to the mullion; the other end (the second end) extends and forms part of the profile structure used to support and fix the fixed window glass 32.

[0076] The exterior enclosure is primarily supported by the second outer frame 214. This second outer frame 214 is installed via a plug-in connection onto the second connector 217 located on one side of the second end of the first window sash profile 211. After installation, the exterior-facing surface of the second outer frame 214 is machined or designed as a horizontal side (or another flat profile that coordinates with the overall facade design). This design ensures that, from an exterior view, the visible frame line of the operable window on this side (formed by the second outer frame 214) perfectly matches and continues the visible frame line of the fixed window on the corresponding side in both width and shape.

[0077] Furthermore, the fixed window frame 31 has a third outer buckle frame 312 located on the outdoor side. The third outer buckle frame 312 is correspondingly arranged with the second outer buckle frame 214. The side of the third outer buckle frame 312 facing the outside has a horizontal side. The surface of the second outer buckle frame 214 facing the outside has the same width as the surface of the third outer buckle frame 312 facing the outside. A third connector 218 is provided between the second outer buckle frame 214 and the third outer buckle frame 312. The third outer buckle frame 312 is fastened to the third connector 218. A second adhesive strip 72 is provided between the second outer buckle frame 214 and the third connector 218.

[0078] Specifically, one side of the third connector is fastened to the side of the fourth heat insulation strip 64 away from the mullion profile 4, and the other side is respectively engaged with the second outer frame 214 and the third outer frame 312. A second adhesive strip 72 is provided between the second outer frame 214 and the third connector 218, and the third outer frame 312 is fastened to one side of the third connector 218.

[0079] To achieve ultimate visual consistency, after installation, the second outer frame 214 and the third outer frame 312 have completely identical widths on their exterior-facing sides, and both are flat, horizontal sides (or other continuous contours that meet the overall facade design requirements). This makes the operable and fixed sashes appear as a single, continuous, equal-width, and extremely narrow frame line without any steps or breaks when viewed from the outside, thus completely concealing the separation between the sashes and enhancing the overall integrity and sense of order of the window facade.

[0080] Regarding the internal connection and sealing mechanism, an independent third connector 218 is provided between the second outer buckle frame 214 and the third outer buckle frame 312. This third connector 218 serves as an intermediate receiving and connecting structure, and one side of it is mechanically fastened to the third outer buckle frame 312 to achieve a quick and secure connection. This fastening method typically involves the cooperation of profile hooks and grooves, ensuring the convenience and reliability of the connection.

[0081] More importantly, a second rubber strip 72 is provided at the joint between the second outer frame 214 and the third connector 218. This second rubber strip 72 is typically made of a highly elastic sealing material (such as EPDM rubber), forming a durable and flexible compression seal between the two. This sealing layer mainly performs two functions: first, dynamic sealing, which can effectively compensate for gap changes caused by temperature variations, material deformation, or installation tolerances, continuously preventing the infiltration of outdoor rainwater and air; second, buffering and absorbing to a certain extent the slight relative displacement or vibration that may occur between the two outer frames, improving the durability of the connection joint.

[0082] In one specific embodiment, a second mounting space 219 is formed between the first window sash profile 211, the second connector 217, and the second outer frame 214 on the side facing the operable window glass 22. One end of the operable window glass 22 is inserted into the second mounting space 219. A second structural adhesive 82 is provided along the edge of the operable window glass 22 in the second mounting space 219. A second sealant 92 is provided between the end of the second mounting space 219 and the operable window glass 22. Foam rods 30 are provided in the gaps within the second mounting space 219. A third installation space 220 is formed between the first fixing profile 311, the third connector 218 and the third outer buckle frame 312 on the side facing the fixed window glass 32. One end of the fixed window glass 32 is inserted into the third installation space 220. A third adhesive strip 73 is provided along the edge of the fixed window glass 32 in the third installation space 220. A third sealant 93 is provided between the opening end of the third installation space 220 and the fixed window glass 32. Foam rods 30 and second sealant 92 are provided in the gaps in the third installation space 220.

[0083] Specifically, on the operable window side, a second installation space 219 is formed by the specific profiles of the first window sash profile 211, the second connector 217, and the second outer frame 214, which together precisely accommodate and fix one end of the operable window glass 22. Correspondingly, on the fixed window side, a third installation space 220 is formed by the first fixing profile 311, the third connector 218, and the third outer frame 312, which accommodates and fixes one end of the fixed window glass 32. The internal structure of these two installation spaces is similar to that of the first installation space 216, and will not be described in detail here.

[0084] In terms of installation technology, a triple-synergistic composite technology is used throughout the installation space to achieve reliable glass fixation and long-term sealing: Within the second installation space 219, a second structural adhesive 82 is applied between the edge of the operable window glass 22 and the inner wall of the profile; within the third installation space 220, a third adhesive strip 73 is applied along the edge of the fixed window glass 32. These structural adhesives (typically high-modulus silicone sealant) provide the primary, long-term, reliable structural bonding force, effectively transferring the wind load and self-weight borne by the glass to their respective supporting profiles (first window sash profile 211, first fixed profile 311), which is the core of ensuring the safety of narrow-frame windows.

[0085] At the ends of the two installation spaces along the glass insertion direction (typically the indoor and outdoor ends), a second sealant 92 and a third sealant 93 are filled. These sealants (typically highly elastic neutral sealants) constitute a flexible terminal sealing layer, whose main function is to block capillary channels that moisture and air may enter longitudinally along the glass end face, and are a key line of defense for achieving excellent water tightness and air tightness.

[0086] Foam rods 30 are pre-placed in the remaining gaps within the two installation spaces that are not filled with adhesive. These closed-cell foam materials serve as a backing material and play a crucial role: first, they control the application shape and thickness of the structural adhesive and sealant to ensure ideal adhesive joints and prevent three-sided adhesion; second, they provide uniform elastic support for the glass, avoiding hard contact with rigid profiles; and third, they can buffer minor displacements caused by temperature changes or structural deformation, protecting the adhesive from excessive stress.

[0087] Through the integrated design described above, the second and third installation spaces successfully integrate three major functions—high-strength load transfer, multiple dynamic sealing, and stress buffering adjustment—within an extremely limited profile cross-section. This not only ensures the installation firmness and long-term safety of the glass within the extremely narrow frame, but also lays a solid technological foundation for achieving extremely high water tightness, air tightness, and excellent temperature change adaptability of the entire window. This is one of the structural features of this invention that balances aesthetics and performance.

[0088] Please refer to Figure 4 and Figure 7 It is a structure that connects the fixed window frame to the frame 1, specifically including a first fixed profile 311, a first frame profile 11, a first side profile 12, and a fourth outer buckle frame 313, wherein one side of the fourth outer buckle frame 313 is fastened to the first side profile 12, as shown below. Figure 7 As shown, a rigid pad 20 is provided between the fixed window glass 32 and the frame 1. There is no first connector. The rest of the structure is similar to the connection structure between the opening window assembly and the frame 1, so it will not be described in detail here.

[0089] It should also be noted that a mullion profile 4 is also provided at the connection between the fixed window components. Referring to the connection structure between the fixed window components and the movable window components and the connection structure between the fixed window components and the frame 1, two first fixed profiles 311 and two third outer buckle frames 312 are provided on both sides of the mullion profile 4. This will not be described in detail here.

[0090] This application further discloses an assembly method for a thermally broken, ultra-narrow frame, equal-thickness casement window, applicable to the aforementioned thermally broken, ultra-narrow frame, equal-thickness casement window. The assembly method includes the following steps: S1. Assemble the operable window glass 22 with the first profile component and the second profile component of the operable window frame 21 respectively, and apply structural adhesive, filler sealant, adhesive strip and foam rod in the first installation space and the second installation space to prefabricate an integral operable window component unit. S2. Assemble the frame 1 with the fixed window frame 31, and install the fixed window frame 31 onto the mullion profile 4; S3. Install the assembled frame 1 and fixed window frame 31 into the window opening, and then install the prefabricated opening window component unit in place, so that one side is connected to the frame 1 and the other side is connected to the mullion profile 4. S4. Install the fixed window glass 32 into the third installation space of the fixed window frame 31 and apply structural adhesive and sealant. Then install and fasten each outer frame to complete all the sealing and sealing processes.

[0091] Specifically, in step S1, the factory prefabrication and assembly of the operable window glass 22 is carried out according to the following process: First, one end of the operable window glass 22 is inserted into the first installation space 216 formed by the second window sash profile 212, the first connector, and the first outer frame 213. Then, the first structural adhesive 81 and the third adhesive strip 73 are applied to the gap between the glass edge and the inner wall of the profile in the space, and the first sealant 91 is filled at the open end of the installation space (usually the indoor and outdoor ends). At the same time, closed-cell foam rods 30 are filled into the remaining gaps in the space to complete the assembly and sealing of the glass and the first profile assembly (i.e., the side where the window sash connects to the frame). Similarly, the other end of the operable window glass 22 is inserted into the second installation space 219 formed by the first window sash profile 211, the second connector 217, and the second outer frame 214, and the second structural adhesive 82 is applied, and the second sealant 92, the second adhesive strip 73, and the foam rod 30 are filled. Subsequently, the handle 5 is installed on the side of the operable window frame 21 that connects to the mullion profile 4. Finally, the assembled components are fixed together in the factory using connectors such as corner brackets to form an "operable window assembly unit" that is dimensionally accurate, completely sealed, highly integrated, and easy to transport.

[0092] In step S2, the assembly of the frame 1 and the fixed window frame 31 is mainly carried out in the factory or on the construction site: First, the first frame profile 11 and the first side profile 12 constituting the frame 1 are connected by the first thermal insulation strip 61 to form the frame body with a thermal break structure; Second, the mullion profile 4 is fixed to the corresponding side of the first fixed profile 311 of the fixed window frame 31 by mechanical connection (such as screw connection or corner bracket connection), and the two are ensured to be tightly connected and accurately positioned; Subsequently, the assembled frame 1 and the fixed window frame 31 with mullion are assembled into an integral "fixed frame unit" by corner connectors.

[0093] In step S3, the on-site installation process is as follows: First, the "fixed frame unit" assembled in step S2 is hoisted or moved to the building window opening as a whole, and reliably fixed to the opening using connectors (such as fixing plates or anchors), and necessary horizontal and vertical adjustments are made. Then, the "opening window component unit" prefabricated in step S1 is installed in place as a whole: one side of the unit (i.e., the side with the second window sash profile 212) is connected and fixed to the first frame profile 11 of the frame 1 using hardware such as hinges 10; the other side of the unit (i.e., the side with the first window sash profile 211) is connected and locked to the corresponding side of the mullion profile 4 already installed on the fixed window frame using hardware such as locking points, and adjustments are made to ensure flexible opening and tight closing.

[0094] In step S4, the final finishing and fixing installation includes: First, inserting one end of the fixed window glass 32 into the third installation space formed by the first fixing profile 311, the third connector, and the third outer frame 312, and applying the third adhesive strip 73 along the edge of the glass in this space, filling the open end with the third sealant 93, and filling the gaps with foam rods 30. Then, sequentially fastening the third outer frame 312 to the third connector 218, and sealing the second outer frame 214 to the third connector 218 using the second adhesive strip 72; simultaneously, sealing the first outer frame 213 to the first frame profile 11 using the first adhesive strip 71. Finally, checking and ensuring all adhesive strips are in place and the sealant is continuous and complete, completing the sealing process for the entire window, forming a finished casement window with an extremely narrow and uniform appearance and reliable performance.

[0095] The above embodiments are merely preferred embodiments of the present invention and should not be construed as limiting the scope of protection of the present invention. Any non-substantial changes and substitutions made by those skilled in the art based on the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A thermally broken, ultra-narrow frame, uniform thickness casement window, comprising a frame (1), wherein the frame (1) is provided with an opening window assembly and a fixed window assembly, characterized in that, The opening window assembly includes an opening window frame (21) and an opening window glass (22) disposed in the opening window frame (21), and the fixed window assembly includes a fixed window frame (31) and a fixed window glass (32) disposed in the fixed window frame (31). The openable window frame (21) and the fixed window frame (31) have at least one set of adjacent sides, and the width of the adjacent sides facing the outside is equal. The openable window frame (21) and the fixed window frame (31) both have an outer frame located outside and an inner frame located inside, and the corresponding outer frames have equal widths. The operable window glass (22) and the fixed window glass (32) are on the same plane on the outdoor side. The operable window frame (21), the fixed window frame (31) and the frame (1) are located outdoors and protrude from the operable window glass (22) or the fixed window glass (32) with equal thickness. The opening window frame (21) and the fixed window frame (31) are connected by a mullion profile (4) at their side connections. The mullion profile (4) is a T-shaped structure. One side of the opening window frame (21) and one side of the fixed window frame (31) are respectively embedded in the two sides of the mullion profile (4). The side of the opening window frame (21) connected to the mullion profile (4) has a handle (5).

2. The thermally broken, ultra-narrow frame, equal-thickness casement window according to claim 1, characterized in that, The opening window frame (21) has a first profile assembly on one side that fits against the frame (1); The first profile assembly includes: The second window sash profile (212) is located on the indoor side. The frame (1) has a first frame profile (11) connected to the second window sash profile (212). The second window sash profile (212) has a first end connected to the first frame profile (11) and a second end connected to the operable window glass (22). The first outer frame (213) is located on the outdoor side. The second end of the second window sash profile (212) is provided with a first connector (215). The first outer frame (213) is inserted into the first connector (215). The side of the first outer frame (213) facing the outside has a horizontal side.

3. A thermally broken, ultra-narrow frame, equal-thickness casement window according to claim 2, characterized in that, The frame (1) also has a first side profile (12) located on the outdoor side. The first frame profile (11) has a first end connected to the second window sash profile (212) and a second end close to the first side profile (12). A first thermal insulation strip (61) is connected between the first side profile (12) and the second end of the first frame profile (11). A first adhesive strip (71) is provided between the first frame profile (11) and the side of the outer buckle frame (213) away from the operable window glass (22).

4. A thermally broken, ultra-narrow frame, equal-thickness casement window according to claim 2, characterized in that, The second window sash profile (212) has a second thermal insulation strip (62) at the connection between it and the first connector (215).

5. A thermally broken, ultra-narrow frame, equal-thickness casement window according to claim 2, characterized in that, A first installation space (216) is formed between the second window sash profile (212), the first connector (215), and the first outer buckle frame (213) on the side facing the operable window glass (22), and one end of the operable window glass (22) is inserted into the first installation space (216); The first installation space (216) is provided with a first structural adhesive (81) along the edge of the operable window glass (22), and there is a first sealant (91) between the first installation space (216) and the operable window glass (22). A third adhesive strip (73) is provided between the first outer frame (213) and the operable window glass (22). Foam rods (30) and the first sealant (91) are provided in the gaps in the first installation space (216).

6. A thermally broken, ultra-narrow frame, equal-thickness casement window according to claim 1, characterized in that, The opening window frame (21) has a second profile assembly on one side that fits against the fixed window frame (31); The second profile assembly includes: The first window sash profile (211) is located on the indoor side. The first window sash profile (211) is connected to the mullion profile (4). The fixed window frame (31) has a first fixed profile (311) connected to the first window sash profile (211) through the mullion profile. The first window sash profile (211) has a first end connected to the mullion profile (4) and a second end connected to the operable window glass (22). The first fixed profile (311) has a first end connected to the mullion profile (4) and a second end connected to the fixed window glass (32). The second outer frame (214) is located on the outdoor side. The second end of the first window sash profile (211) is provided with a second connector (217). The second outer frame (214) is inserted into the second connector (217). The side of the second outer frame (214) facing the outside has a horizontal side.

7. A thermally broken, ultra-narrow frame, equal-thickness casement window according to claim 6, characterized in that, The fixed window frame (31) has a third outer frame (312) located on the outdoor side. The third outer frame (312) is correspondingly arranged with the second outer frame (214). The third outer frame (312) has a horizontal side on the outdoor side. The outdoor side surface of the second outer frame (214) has the same width as the outdoor side surface of the third outer frame (312). A third connector (218) is provided between the second outer buckle frame (214) and the third outer buckle frame (312), the third outer buckle frame (312) is fastened to the third connector (218), and a second adhesive strip (72) is provided between the second outer buckle frame (214) and the third connector (218).

8. A thermally broken, ultra-narrow frame, equal-thickness casement window according to claim 7, characterized in that, The second connector has a third heat insulation strip (63) at the connection between it and the mullion profile (4).

9. A thermally broken, ultra-narrow frame, equal-thickness casement window according to claim 7, characterized in that, A second mounting space (219) is formed between the first window sash profile (211), the second connector (217), and the second outer buckle frame (214) on the side facing the operable window glass (22). One end of the operable window glass (22) is inserted into the second mounting space (219). The second mounting space (219) is provided with a second structural adhesive (82) along the edge of the operable window glass (22). There is a second sealant (92) between the second mounting space (219) and the operable window glass (22). There are foam rods (30) and the second sealant (92) in the gaps in the second mounting space (219). A third installation space (220) is formed between the first fixing profile (311), the third connector (218), and the third outer buckle frame (312) on the side facing the fixed window glass (32). One end of the fixed window glass (32) is inserted into the third installation space (220). The third installation space (220) is provided with a third adhesive strip (73) along the edge of the fixed window glass (32). There is a third sealant (93) between the third installation space (220) and the fixed window glass (32). There is a foam rod (30) and the third sealant (93) in the gaps in the third installation space (220).

10. A method for assembling a thermally broken, ultra-narrow frame, uniform thickness casement window, characterized in that... The assembly method, applicable to a thermally broken, ultra-narrow frame, equal-thickness casement window as described in any one of claims 1-9, comprises: The operable window glass (22) is assembled with the first profile component and the second profile component of the operable window frame (21) respectively, and structural adhesive, sealant and foam rod are applied in the first installation space and the second installation space to prefabricate an integral operable window component unit; Assemble the frame (1) with the fixed window frame (31) and install the fixed window frame (31) on the mullion profile (4); Install the assembled frame (1) and fixed window frame (31) into the window opening, and then install the prefabricated opening window component unit into place, so that one side is connected to the frame (1) and the other side is connected to the mullion profile (4). Install the fixed window glass (32) into the third installation space of the fixed window frame (31) and apply structural adhesive and sealant. Then install and fasten each outer frame to complete all the sealing and sealing processes.

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