An energy-saving sealing anti-seepage type door and window system based on cavity full-face filling

Abstract

The application discloses an energy-saving sealing anti-seepage type door and window system based on cavity full-section filling, relates to the technical field of building doors and windows, and aims to solve the problems of poor filling, insufficient heat preservation performance and poor sealing and anti-seepage performance of the cavity of an existing aluminum alloy door and window profile. The system comprises a door and window frame body, a full-section filling body, a window sash and a sealing assembly. The door and window frame body is composed of an aluminum alloy profile and has a profile cavity extending along the length direction. The full-section filling body is formed by foaming and solidification of foaming filling material in the profile cavity and fills the whole cross section of the profile cavity. The full-section filling body is combined with the inner wall surface of the aluminum alloy profile to block the air convection channel. The sealing assembly is arranged between the door and window frame body and the window sash and comprises sealing rubber strips arranged along the circumference of the door and window frame body. The application realizes full-section dense filling of the profile cavity, eliminates air convection heat transfer, improves the air tightness and water tightness through the multiple sealing structure, and enhances the heat preservation durability.

Description

Technical Field

[0001] This invention relates to the field of building door and window technology, specifically to an energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity. Background Technology

[0002] Aluminum alloy doors and windows are widely used in the building door and window industry due to their advantages such as high strength, corrosion resistance, high processing precision, and aesthetics. However, aluminum alloy profiles themselves have a high thermal conductivity (approximately 200 W / (m·K)), resulting in poor thermal insulation performance of aluminum alloy doors and windows and a significant thermal bridging effect.

[0003] To improve the thermal insulation performance of aluminum alloy doors and windows, existing technologies mainly use thermally broken aluminum alloy profiles. This involves placing a low thermal conductivity thermal break strip between the indoor and outdoor profiles to block the heat transfer path. However, hollow cavities still exist inside the indoor and outdoor profiles of the thermally broken aluminum alloy profiles. The air inside these cavities can cause convective heat transfer, resulting in heat being transferred through the interior of the profiles and weakening the thermal insulation effect of the thermal break structure.

[0004] To further reduce heat transfer from air convection within the profile cavity, some existing technologies fill the cavity with insulation material. However, these technologies have the following shortcomings: First, the filling method is imperfect. Gaps exist between the prefabricated filling strips and the inner wall of the profile. Injection filling suffers from problems such as incomplete filling, air bubbles, or voids, failing to achieve full-section dense filling of the profile cavity cross-section, and the air convection channels are not completely blocked. Second, the filling range is incomplete. Existing technologies often only fill a specific cavity of the profile, leaving the cavities of the indoor and outdoor profiles unfilled or incompletely filled. Third, the sealing system is incomplete. Existing sealing structures often use a single sealing strip or a simple waterproof structure, making it difficult to achieve comprehensive sealing and seepage prevention from the inside of the profile to the installation interface.

[0005] Therefore, there is an urgent need for a door and window system that can solve the above problems at the same time, so as to achieve a balance between excellent thermal insulation performance, sealing and seepage prevention performance and structural strength. Summary of the Invention

[0006] In view of the shortcomings of the prior art, the purpose of this invention is to provide an energy-saving, sealing and seepage-proof door and window system based on full-section filling of the inner cavity, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, a specific embodiment of the present invention provides an energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity, comprising a door and window frame, a full-section filler, a window sash, and a sealing assembly; the door and window frame is composed of an aluminum alloy profile, the aluminum alloy profile having an inner cavity extending along its length; the full-section filler fills the inner cavity of the profile, the full-section filler being formed by foaming and curing a foamed filling material in the inner cavity of the profile, and the full-section filler continuously extends along the length of the inner cavity of the profile and fills the entire cross-section of the inner cavity of the profile; the window sash is installed on the door and window frame; the sealing assembly is disposed between the door and window frame and the window sash, the sealing assembly including at least one sealing strip arranged circumferentially along the door and window frame; the full-section filler is bonded to the inner wall surface of the aluminum alloy profile to block the air convection channel in the inner cavity of the profile.

[0008] In addition, the energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity proposed in this application may also have the following additional technical features: In one embodiment of this application, the aluminum alloy profile is a thermally broken aluminum alloy profile, including an indoor profile, an outdoor profile, and a thermally broken bridge connecting the indoor profile and the outdoor profile. The indoor profile and the outdoor profile each have an inner cavity, and each inner cavity is filled with the full-section filler.

[0009] In one embodiment of this application, the thermal break extends continuously along the length of the aluminum alloy profile, and the thermal break, together with the indoor profile and the outdoor profile, forms a thermal break cavity, which is also filled with the full-section filler.

[0010] In one embodiment of this application, the inner wall surface of the aluminum alloy profile is provided with a plurality of anchoring protrusions spaced apart along the length direction of the inner cavity of the profile, and the full-section filler wraps around the anchoring protrusions.

[0011] In one embodiment of this application, the sealing assembly further includes a waterproof and airtight layer disposed between the door / window frame and the mounting wall. The waterproof and airtight layer is arranged along the outer periphery of the door / window frame, with one end of the waterproof and airtight layer bonded to the outdoor side of the door / window frame and the other end bonded to the structural layer of the mounting wall.

[0012] In one embodiment of this application, a sealing filler is used to fill the space between the waterproof and airtight layer and the door / window frame.

[0013] In one embodiment of this application, an injection hole and an exhaust hole are provided on the outer wall surface of the aluminum alloy profile, and the injection hole and the exhaust hole are respectively connected to the inner cavity of the profile.

[0014] In one embodiment of this application, a sealing plug is provided at the injection hole and the vent hole respectively, and the sealing plug closes the injection hole and the vent hole.

[0015] In one embodiment of this application, the foaming filler material is polyurethane foam, and the density of the full-section filler is 30~80 kg / m³. 3 .

[0016] In one embodiment of this application, the door and window frame includes an outer frame and a mullion, both the outer frame and the mullion having the profile cavity, the profile cavity being filled with the full-section filler, and the window sash being mounted on the outer frame via a hinge.

[0017] The advantages of this invention compared to existing technologies are: (1) By setting a full-section filler in the inner cavity of the aluminum alloy profile, and the full-section filler is formed by foaming and curing the foamed filler material directly in the inner cavity of the profile, it can achieve a tight bond with the inner wall of the profile, completely block the air convection channel in the inner cavity of the profile, thereby significantly reducing the heat transfer coefficient of the profile, eliminating the thermal bridge effect, and greatly improving the thermal insulation performance of the door and window system.

[0018] (2) The full-section filler extends continuously along the length of the profile cavity and fills the entire cross section, realizing full-section and full-length dense filling of the cavity. This avoids problems such as incomplete filling, gaps or voids in existing filling technologies. At the same time, the close bond between the filler and the inner wall of the profile enhances the structural strength and deformation resistance of the profile.

[0019] (3) By setting full-section fillers in the indoor and outdoor profiles of the thermally broken aluminum alloy profiles and in the thermally broken cavity, there are no longer any cavities in the cross-section of the entire door and window frame that can be used for air convection heat transfer, thus achieving full-section thermal insulation. The thermal insulation effect is significantly better than the existing technology that only fills a single cavity.

[0020] (4) Through the synergistic effect of the sealing components and the full-section filler, a continuous and reliable sealing structure is formed between the door and window frame and the window sash. At the same time, a waterproof and airtight layer is set between the door and window frame and the wall, realizing all-round and multi-level sealing and seepage prevention from the inside of the profile to the installation interface, effectively blocking the penetration path of water vapor and heat.

[0021] (5) During the foaming and curing process, the full-section filler forms a mechanical anchor with the anchoring protrusions on the inner wall of the profile, which enhances the bonding strength between the filler and the profile, avoids the risk of the filler separating from the inner wall of the profile during long-term use, and ensures the long-term stability and durability of the door and window system.

[0022] (6) By setting the injection hole and the vent hole, the foam filling material can be smoothly injected and evenly distributed in the inner cavity of the profile, ensuring the molding quality of the full-section filling. The setting of the sealing plug facilitates the sealing treatment after injection, and the process is simple and the cost is controllable.

[0023] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This invention provides a three-dimensional energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity, as described in one embodiment of the present invention. Figure 1 ; Figure 2 This invention provides a three-dimensional energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity, as described in one embodiment of the present invention. Figure 2 ; Figure 3 This invention provides a three-dimensional energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity, as described in one embodiment of the present invention. Figure 3 ; Figure 4 This is a perspective view of the internal structure of an energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity, according to an embodiment of the present invention. Figure 5 This is a schematic diagram of the internal structure of an energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity, according to one embodiment of the present invention.

[0026] Explanation of reference numerals in the attached figures: 1. Door and window frame; 2. Full-section infill; 3. Window sash; 4. Sealing assembly; 6. Injection hole; 7. Vent hole; 11. Indoor profile; 12. Outdoor profile; 13. Thermal break; 14. Profile cavity; 15. Thermal break cavity; 16. Anchoring protrusion; 41. Sealing strip; 42. Waterproof and airtight layer; 43. Sealing filler. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. 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.

[0028] Example 1 like Figures 1 to 5 As shown, this embodiment provides an energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity, including a door and window frame 1, a full-section filling body 2, a window sash 3, and a sealing component 4.

[0029] The door and window frame 1 is the main supporting frame structure of the door and window system, and is made of aluminum alloy profiles. The aluminum alloy profiles are manufactured using an extrusion molding process, and have internal cavities 14 extending along the length of the profile. The number of internal cavities 14 can be one or more, depending on the cross-sectional shape of the profile. In this embodiment, the internal cavity 14 is a closed cavity extending along the length of the profile, and its cross-sectional shape can be rectangular, circular, trapezoidal, or other irregularly shaped. The wall thickness of the aluminum alloy profile is 1.4mm~2.5mm to ensure that the door and window frame 1 has sufficient structural strength.

[0030] The full-section filler 2 fills the inner cavity 14 of the profile. The full-section filler 2 is formed by foaming and curing a foamed filler material within the inner cavity 14. During preparation, the liquid or semi-liquid foamed filler material is injected into the inner cavity 14. The foamed filler material undergoes a chemical foaming reaction within the inner cavity 14, expanding in volume and gradually filling the entire space of the inner cavity 14. After foaming and curing, the full-section filler 2 extends continuously along the length of the inner cavity 14 and fills the entire cross-section of the inner cavity 14. "Filling the entire cross-section" means that at any cross-sectional location within the inner cavity 14, the full-section filler 2 occupies the entire area of ​​that cross-section, with no unfilled gaps or voids. The outer surface of the full-section filler 2 is tightly bonded to the inner wall of the aluminum alloy profile, with no gaps between them. Since the full-section filler 2 completely occupies the internal space of the profile cavity 14, there is no longer a cavity in the profile cavity 14 for air to flow, thus completely cutting off the convective heat transfer path of air in the profile cavity 14.

[0031] Window sash 3 is installed on the door / window frame 1. Window sash 3 includes a window sash frame and glass installed inside the window sash frame. Window sash 3 is installed on the side frame of door / window frame 1 via hinges, and window sash 3 can rotate relative to door / window frame 1 around the axis of the hinges to open and close. The window sash frame is made of aluminum alloy profile, and the interior of the window sash frame can also be filled with a full-section filler 2. The glass is double-glazed, with a spacer sandwiched between two glass panes and sealed to form a hollow layer. The hollow layer is filled with dry air or an inert gas (such as argon) to reduce the heat transfer coefficient of the glass portion.

[0032] A sealing assembly 4 is disposed between the door / window frame 1 and the window sash 3. The sealing assembly 4 includes at least one sealing strip 41 continuously arranged circumferentially along the door / window frame 1. The sealing strip 41 is made of ethylene propylene diene monomer (EPDM) rubber or silicone rubber, possessing excellent elasticity and aging resistance. The sealing strip 41 is embedded in a sealing groove opened on the frame of the door / window frame 1, the sealing groove extending continuously circumferentially along the door / window frame 1. When the window sash 3 is closed, the sash frame of the window sash 3 presses against the sealing strip 41, causing the sealing strip 41 to elastically deform and tightly adhere to the surface of the sash frame of the window sash 3, forming an airtight and watertight seal. In this embodiment, there are two sealing strips 41, respectively arranged on the inner and outer sides of the door / window frame 1, forming a double-seal structure, further improving sealing reliability.

[0033] In this embodiment, during the assembly of the door and window system, foamed filler material is first injected into the inner cavity 14 of the aluminum alloy profile. After the foamed filler material cures to form a full-section filler body 2, the filled aluminum alloy profile is cut and processed according to the design dimensions, and assembled into a door and window frame 1 by corner bracket connection or welding. Subsequently, a sealing strip 41 is embedded in the sealing groove of the door and window frame 1. Finally, the pre-assembled window sash 3 is installed on the door and window frame 1 by hinges, completing the overall assembly of the door and window system.

[0034] During the use of the window and door system, when the window sash 3 is closed, the sealing strip 41 is pressed tightly between the window and door frame 1 and the window sash 3, preventing outdoor air, rainwater, and dust from entering the room through the gap between the frame and sash. Simultaneously, because the profile cavity 14 is completely filled with the full-section filler 2, air convection heat transfer within the profile cavity 14 is blocked, making it difficult for outdoor heat to transfer to the room through the profile cavity 14. This significantly reduces the heat transfer coefficient of the window and door system and improves its thermal insulation performance. Furthermore, the full-section filler 2 also enhances the structural rigidity of the aluminum alloy profile, improving the wind pressure deformation resistance of the window and door frame 1.

[0035] Example 2 This embodiment is basically the same as Embodiment 1 in structure and working principle, the difference being: Figure 4 and Figure 5As shown, the aluminum alloy profile is a thermally broken aluminum alloy profile.

[0036] The thermally broken aluminum alloy profile includes an indoor profile 11, an outdoor profile 12, and a thermally broken bridge 13 connecting the indoor profile 11 and the outdoor profile 12. Both the indoor profile 11 and the outdoor profile 12 are made of aluminum alloy and are located on the indoor and outdoor sides of the window / door frame 1, respectively. The thermally broken bridge 13 extends continuously along the length of the aluminum alloy profile, with its left and right ends fixedly connected to the indoor profile 11 and the outdoor profile 12, respectively. The thermally broken bridge 13 is made of PA66 nylon material, with 25% to 30% glass fiber filled to enhance its mechanical properties. The thermal conductivity of the thermally broken bridge 13 is 0.2 W / (m·K) to 0.3 W / (m·K), which is much lower than that of aluminum alloy, thus effectively blocking the direct heat conduction path between the indoor profile 11 and the outdoor profile 12.

[0037] The connection between the thermal break 13 and the indoor profile 11 and the outdoor profile 12 is as follows: the two ends of the thermal break 13 are respectively provided with snap-fit ​​grooves extending along the length direction, and the indoor profile 11 and the outdoor profile 12 are respectively provided with snap-fit ​​protrusions that are adapted to the snap-fit ​​grooves. The snap-fit ​​protrusions are embedded in the snap-fit ​​grooves, and the groove wall of the snap-fit ​​groove is plastically deformed by the rolling process, so as to firmly clamp the snap-fit ​​protrusions in the snap-fit ​​grooves, thereby realizing the fixed connection between the thermal break 13 and the indoor profile 11 and the outdoor profile 12.

[0038] The indoor profile 11 and the outdoor profile 12 each have an inner cavity 14. Each inner cavity 14 is filled with a full-section filler 2. The full-section filler 2 fills the inner cavities 14 of both the indoor profile 11 and the outdoor profile 12, using the same filling method as in Example 1, i.e., directly foaming and curing the filler material within each inner cavity 14. By providing a full-section filler 2 in both the inner cavities 14 of the indoor profile 11 and the outdoor profile 12, convective heat transfer on both the indoor and outdoor sides is blocked, further reducing the overall heat transfer coefficient of the thermally broken aluminum alloy profile.

[0039] Example 3 This embodiment is basically the same as embodiment two in structure and working principle, the difference being: Figure 4 and Figure 5 As shown, the thermal break 13 extends continuously along the length of the aluminum alloy profile, and the thermal break 13, the indoor profile 11, and the outdoor profile 12 enclose each other to form a thermal break cavity 15.

[0040] Specifically, the thermal break 13 has an approximate "I" shaped cross-section. Its two ends are connected to the indoor profile 11 and the outdoor profile 12, respectively. The middle of the thermal break 13, together with the inner walls of the indoor and outdoor profiles 11 and 12, forms a closed cavity, which is the thermal break cavity 15. The thermal break cavity 15 extends continuously along the length of the aluminum alloy profile. The thermal break cavity 15 is also filled with a full-section filler 2.

[0041] The preparation method of the full-section filler 2 in the thermal break cavity 15 is the same as that of the full-section filler 2 in the inner cavity 14 of the profile: after the aluminum alloy profile is extruded, foamed filler material is injected into the thermal break cavity 15 through the injection hole opened on the outer wall of the profile. The foamed filler material foams and solidifies in the thermal break cavity 15 to form the full-section filler 2, which fills the entire cross-section and the entire length of the thermal break cavity 15.

[0042] By also installing a full-section filler 2 in the thermal break area 13, the air gaps that originally existed between the thermal break 13 and the indoor profile 11 and the outdoor profile 12 are completely filled, eliminating any potential air convection and radiation heat transfer in this area, thus further improving the thermal insulation effect of the thermal break section. At this point, there are no more unfilled cavities inside the entire cross-section of the door and window frame 1, achieving full-section thermal insulation.

[0043] Example 4 This embodiment is basically the same as Embodiment 1 in structure and working principle, the difference being: Figure 5 As shown, multiple anchoring protrusions 16 are provided on the inner wall surface of the aluminum alloy profile. The anchoring protrusions 16 are arranged at intervals along the length direction of the inner cavity 14 of the profile.

[0044] The anchoring protrusion 16 is a protruding structure extending from the inner wall of the aluminum alloy profile towards the interior of the profile cavity 14. The specific form of the anchoring protrusion 16 can be a hemispherical protrusion, an annular boss, or a longitudinal protrusion extending along the length of the profile. In this embodiment, the anchoring protrusion 16 is a hemispherical protrusion, distributed in an array on each inner wall surface of the profile cavity 14, with a spacing of 15mm to 30mm between adjacent anchoring protrusions 16. The anchoring protrusion 16 is integrally formed with the profile body during the extrusion molding process of the aluminum alloy profile, requiring no secondary processing.

[0045] After the foamed filler material is injected into the inner cavity 14 of the profile, it completely encapsulates the anchoring protrusion 16 during its expansion. After the foamed filler material cures, a strong mechanical anchoring effect is formed between the full-section filler 2 and the anchoring protrusion 16: the anchoring protrusion 16 is embedded inside the full-section filler 2. When the full-section filler 2 is subjected to external force and tends to move along the length or radial direction of the inner cavity 14 of the profile, the anchoring protrusion 16 acts as a barrier, preventing relative displacement between the full-section filler 2 and the inner wall of the profile. Through the installation of the anchoring protrusion 16, the bonding strength between the full-section filler 2 and the inner wall of the aluminum alloy profile is significantly enhanced. This effectively avoids the risk of the full-section filler 2 detaching from or developing gaps with the inner wall of the profile due to thermal expansion and contraction stress caused by temperature changes, frame vibration caused by wind pressure, or impact vibration during transportation and installation during long-term use. This ensures the long-term stability and durability of the thermal insulation performance of the window and door system throughout its lifespan.

[0046] Example 5 This embodiment is basically the same as Embodiment 1 in structure and working principle, the difference being: Figure 1 and Figure 3 As shown, the sealing assembly 4 also includes a waterproof and airtight layer 42. The waterproof and airtight layer 42 is disposed between the door / window frame 1 and the mounting wall.

[0047] The wall to be installed is the main structural wall of the building, including a structural layer and a plaster layer covering the surface of the structural layer. The structural layer is a concrete or masonry structure, and the plaster layer is a cement mortar finishing layer. The door and window frame 1 is installed in the door and window openings opened in the wall, and there is an installation gap between the outer perimeter of the door and window frame 1 and the inner wall of the door and window opening.

[0048] A waterproof and airtight layer 42 is continuously arranged along the outer perimeter of the door and window frame 1, forming a closed annular waterproof and airtight barrier. One end of the waterproof and airtight layer 42 is bonded to the exterior side of the door and window frame 1, and the other end is bonded to the structural layer of the wall to which it is installed. Specifically, after the door and window frame 1 is installed, the interior end of the waterproof and airtight layer 42 is bonded to the exterior surface of the door and window frame 1 using pressure-sensitive adhesive or butyl tape, and the exterior end of the waterproof and airtight layer 42 is bonded to the surface of the structural layer of the wall using polymer cement mortar or a special adhesive. The waterproof and airtight layer 42 spans the installation gap between the door and window frame 1 and the wall, completely covering the gap from the exterior side.

[0049] The waterproof vapor barrier layer 42 is a waterproof and breathable membrane or a waterproof vapor barrier membrane. When the waterproof vapor barrier layer 42 uses a waterproof and breathable membrane, it has the characteristic that liquid water cannot penetrate it but water vapor can pass through. That is, it can prevent outdoor liquid water from entering the indoor side through the installation gaps, while allowing water vapor inside the wall to escape to the outside, preventing moisture accumulation inside the wall from causing mold or a decrease in thermal insulation performance. When the waterproof vapor barrier layer 42 uses a waterproof vapor barrier membrane, it has the function of blocking both liquid water and water vapor, and can more thoroughly prevent water vapor from penetrating through the installation gaps.

[0050] With the installation of the waterproof and airtight layer 42, the installation gap between the door and window frame 1 and the wall is reliably sealed, preventing outdoor rainwater and moisture from seeping into the room through the gap, while also preventing indoor hot air from leaking to the outside through the gap, further improving the water tightness and thermal insulation performance of the door and window system.

[0051] Example 6 This embodiment is basically the same as embodiment five in structure and working principle, the difference being: Figure 3 As shown, a sealing filler 43 is filled between the waterproof and air-tight layer 42 and the door and window frame 1.

[0052] Sealing filler 43 is used to fill the installation gap between the outer surface of the door / window frame 1 and the inner wall of the door / window opening in the wall. Sealing filler 43 is a polyurethane foam sealant, which is injected into the installation gap in liquid or foam form during filling. It then undergoes a foaming and curing reaction, expanding in volume to fully fill the entire space of the installation gap. After curing, it adheres tightly to the outer surface of the door / window frame 1 and the inner wall of the door / window opening in the wall. The density of the cured sealing filler 43 is 15 kg / m³. 3 ~30kg / m 3 The thermal conductivity is no greater than 0.035 W / (m·K).

[0053] The sealing filler 43 serves two purposes: firstly, it fills and seals the gaps, blocking air leakage paths; secondly, it has good thermal insulation properties, eliminating the thermal bridging effect between the door / window frame 1 and the wall, and preventing condensation at the installation gaps. The waterproof and airtight layer 42 covers the exterior surface of the sealing filler 43, protecting it from aging and degradation due to long-term exposure to the outdoor environment.

[0054] The sealing filler 43 is filled as follows: After the door and window frame 1 is installed in the door and window opening in the wall, a special foaming gun is used to inject polyurethane foam sealant into the installation gap. After the foam sealant has completely cured, the excess part that overflows into the installation gap is cut off with a blade, so that the outer surface of the sealing filler 43 is flush with the surface of the wall. Then, a waterproof and air-tight layer 42 is installed on the outdoor surface of the sealing filler 43.

[0055] Example 7 This embodiment is basically the same as Embodiment 1 in structure and working principle, the difference being: Figure 2 and Figure 3 As shown, an injection hole 6 and an vent hole 7 are provided on the outer wall surface of the aluminum alloy profile. The injection hole 6 and the vent hole 7 are respectively connected to the inner cavity 14 of the profile.

[0056] Injection holes 6 are formed on the exterior or interior sidewall of the aluminum alloy profile and are used to inject foamed filler material into the inner cavity 14 of the profile. The number of injection holes 6 is determined according to the length and cross-sectional dimensions of the inner cavity 14 of the profile. When the length of the inner cavity 14 of the profile is large, multiple injection holes 6 can be arranged at intervals along the length of the profile to ensure that the foamed filler material can be evenly distributed and fill the entire inner cavity 14 of the profile. The diameter of the injection holes 6 is 3mm to 8mm, preferably 5mm.

[0057] Vent 7 is located on the wall of the aluminum alloy profile, corresponding to the position of the injection hole 6. Vent 7 is used to expel gas from the inner cavity 14 of the profile during the injection of foamed filler material. When the foamed filler material is injected into the inner cavity 14 of the profile through the injection hole 6, the air originally present in the inner cavity 14 needs to be expelled through the vent 7; otherwise, the air will hinder the flow and diffusion of the foamed filler material, resulting in incomplete filling. The diameter of the vent 7 is the same as or slightly smaller than the diameter of the injection hole 6, preferably 3mm to 5mm.

[0058] In preparing the full-section filler 2, the aluminum alloy profile is first placed horizontally with the injection hole 6 facing upwards or to the side. Components A and B of the foamed filler material are pumped from the storage container in a predetermined ratio (e.g., 1:1), mixed evenly through a mixing head, and then injected into the profile cavity 14 through the injection hole 6. During injection, gas in the profile cavity 14 is discharged through the vent hole 7. When foamed filler material overflows from the vent hole 7, it indicates that the profile cavity 14 is basically filled, and injection is stopped. The foamed filler material is then allowed to stand in the profile cavity 14 to foam and cure for 10 to 60 minutes at an ambient temperature of 15°C to 35°C. After curing, the full-section filler 2 is formed in the profile cavity 14.

[0059] The inclusion of injection hole 6 and vent hole 7 ensures that the injection process of foamed filler material is smooth, guaranteeing the molding quality and filling density of the full-section filler 2.

[0060] Example 8 This embodiment is basically the same as the seventh embodiment in terms of structure and working principle, except that: sealing plugs are provided at the injection hole 6 and the vent hole 7 respectively.

[0061] The sealing plug is a plug structure adapted to the injection hole 6 and the vent hole 7, made of rubber or plastic. The sealing plug is cylindrical or frustoconical in shape, with its outer diameter slightly larger than the diameters of the injection hole 6 and the vent hole 7 to achieve an interference fit. After the full-section filler 2 has cured, the sealing plug is pressed into the injection hole 6 and the vent hole 7, tightly fitting against the walls of the injection hole 6 and the vent hole 7, sealing them. The outer end face of the sealing plug is flush with the outer wall surface of the aluminum alloy profile to ensure a smooth and aesthetically pleasing appearance of the door and window frame 1.

[0062] The sealing plug not only seals the injection hole 6 and the vent hole 7 to prevent moisture from entering the profile cavity 14 through the injection hole 6 and the vent hole 7, but also prevents the full-section filler 2 from shifting outward or falling out from the injection hole 6 and the vent hole 7 due to vibration or aging shrinkage during long-term use.

[0063] Example 9 This embodiment is basically the same in structure and working principle as any of the above embodiments, except that the foaming filler material is polyurethane foam material. The polyurethane foam material is generated by a foaming reaction after mixing isocyanate component (component A) and polyol component (component B). The mixing ratio of component A and component B is 1:1 to 1.2:1 (volume ratio), and the mixture is injected into the inner cavity 14 of the profile.

[0064] The density of the full-section filler 2 is 30 kg / m³. 3 ~80kg / m 3 When the density of the full-section filler 2 is less than 30 kg / m³ 3 When the foamed material has excessively large pores, its structural strength is insufficient, and the pores may be interconnected, affecting its thermal insulation performance; when the density of the full-section filler 2 is higher than 80 kg / m³, the insulation performance is compromised. 3 While the strength was improved, the material usage increased, leading to higher costs. Furthermore, the thermal conductivity increased with density, resulting in a decrease in insulation performance. Therefore, the density of the full-section filler 2 was controlled at 30 kg / m³. 3 ~80kg / m 3 Within this range, it can balance good thermal insulation performance with sufficient structural strength.

[0065] The thermal conductivity of the full-section filler 2 formed after the polyurethane foam material has cured is no greater than 0.024 W / (m·K), exhibiting excellent thermal insulation performance. Simultaneously, the polyurethane foam material has a natural chemical affinity with the inner wall surface of the aluminum alloy profile, enabling it to form a good bond with the profile's inner wall surface during the foaming process, eliminating the need for additional adhesives.

[0066] Example 10 This embodiment is basically the same as the first embodiment in terms of structure and working principle, except that the door and window frame 1 includes an outer frame and a middle mullion.

[0067] The outer frame is the main frame of the door and window system, including the top frame, bottom frame, left frame, and right frame, which are connected by corner brackets to form a rectangular frame. The mullion is a horizontal or vertical dividing profile located inside the outer frame, dividing the internal area of ​​the outer frame into multiple window sash installation areas. Both the outer frame and the mullion are made of thermally broken aluminum alloy profiles, and both have an inner cavity 14. The inner cavity 14 is filled with a full-section filler 2.

[0068] The window sash 3 is mounted to the outer frame or the mullion via hinges. Specifically, when the window sash 3 is mounted to the outer frame, one side of the hinge is fixedly connected to the side frame of the outer frame, and the other side is fixedly connected to the sash frame of the window sash 3. The window sash 3 rotates around the axis of the hinge to open and close. When the window sash 3 is mounted to the mullion, one side of the hinge is fixedly connected to the mullion, and the other side is fixedly connected to the sash frame of the window sash 3. In the case of multiple window sashes 3, each window sash 3 can be mounted to the outer frame and the mullion separately, and each window sash 3 can be opened independently.

[0069] In this embodiment, the profile cavities 14 of both the outer frame and the mullion are filled with full-section fillers 2. Therefore, regardless of whether the window sash 3 is installed on the outer frame or the mullion, the overall thermal insulation performance and structural strength of the door and window system are fully guaranteed.

[0070] In the above embodiments, the door and window system can be a casement window system, a sliding window system, a casement door system, or a sliding door system. When the door and window system is a casement window system, the window sash 3 is installed on the door and window frame 1 via hinges, and the window sash 3 rotates to open around the vertical axis. When the door and window system is a sliding window system, the window sash 3 is installed on the door and window frame 1 via pulleys and guide rails, and the window sash 3 slides to open in the horizontal direction. When the door and window system is a casement door system or a sliding door system, the window sash 3 is replaced by a door sash, and its structure and installation method are similar to those of the window sash 3, and will not be described again. All of the above forms are within the protection scope of this invention.

[0071] The technical solution described in this application embodiment involves providing a full-section filler 2, formed by direct foaming and curing of foamed filling material, within the profile cavity 14 of the door and window frame 1. This filler 2 completely fills the entire cross-section of the profile cavity 14 and tightly bonds with the inner wall, eliminating air convection channels and reducing the heat transfer coefficient of the door and window system. Simultaneously, the multiple sealing structures of the sealing strip 41 and the waterproof and airtight layer 42 enhance the airtightness and watertightness of the door and window system at the frame-sash overlap joints and wall installation joints. Furthermore, the wrapping and bonding between the anchoring protrusion 16 and the full-section filler 2 strengthens the bond between the filler and the inner wall of the profile, preventing the risk of detachment during long-term use and ensuring the long-term stability of the door and window system's thermal insulation performance.

[0072] Obviously, the above-described embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include these modifications and variations.

Claims

1. An energy-saving, sealing, and leak-proof door and window system based on full-section filling of the inner cavity, characterized in that, Includes door and window frames (1), full-section infill (2), window sashes (3) and sealing components (4); The door and window frame (1) is made of aluminum alloy profile, and the aluminum alloy profile has a profile cavity (14) extending along its length direction. The full-section filler (2) fills the inner cavity (14) of the profile. The full-section filler (2) is formed by foaming and curing of foamed filler material in the inner cavity (14) of the profile. The full-section filler (2) extends continuously along the length direction of the inner cavity (14) of the profile and fills the entire cross-section of the inner cavity (14). The window sash (3) is installed on the door and window frame (1); The sealing assembly (4) is disposed between the door and window frame (1) and the window sash (3), and the sealing assembly (4) includes at least one sealing strip (41) arranged circumferentially along the door and window frame (1). The full-section filler (2) is combined with the inner wall of the aluminum alloy profile to block the air convection channel in the inner cavity (14) of the profile.

2. The energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity according to claim 1, characterized in that, The aluminum alloy profile is a thermally broken aluminum alloy profile, including an indoor profile (11), an outdoor profile (12), and a thermally broken bridge (13) connecting the indoor profile (11) and the outdoor profile (12). The indoor profile (11) and the outdoor profile (12) each have a profile cavity (14), and each profile cavity (14) is filled with the full-section filler (2).

3. The energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity according to claim 2, characterized in that, The thermal break (13) extends continuously along the length of the aluminum alloy profile, and the thermal break (13) and the indoor profile (11) and the outdoor profile (12) enclose a thermal break cavity (15), which is also filled with the full-section filler (2).

4. The energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity according to claim 1, characterized in that, The inner wall of the aluminum alloy profile is provided with a plurality of anchoring protrusions (16) arranged at intervals along the length direction of the inner cavity (14) of the profile, and the full-section filler (2) wraps the anchoring protrusions (16).

5. The energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity according to claim 1, characterized in that, The sealing assembly (4) further includes a waterproof and airtight layer (42) disposed between the door and window frame (1) and the mounting wall. The waterproof and airtight layer (42) is arranged along the outer periphery of the door and window frame (1). One end of the waterproof and airtight layer (42) is bonded to the outdoor side of the door and window frame (1), and the other end is bonded to the structural layer of the mounting wall.

6. The energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity according to claim 5, characterized in that, The waterproof and air-tight layer (42) is filled with a sealing filler (43) between itself and the door and window frame (1).

7. The energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity according to claim 1, characterized in that, The outer wall surface of the aluminum alloy profile is provided with an injection hole (6) and an exhaust hole (7), and the injection hole (6) and the exhaust hole (7) are respectively connected to the inner cavity (14) of the profile.

8. The energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity according to claim 7, characterized in that, A sealing plug is provided at the injection hole (6) and the vent hole (7) respectively, and the sealing plug closes the injection hole (6) and the vent hole (7).

9. The energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity according to claim 1, characterized in that, The foamed filler material is polyurethane foam, and the density of the full-section filler (2) is 30~80 kg / m³. 3 .

10. The energy-saving, sealing, and waterproof door and window system based on full-section filling of the inner cavity according to claim 1, characterized in that, The door and window frame (1) includes an outer frame and a middle mullion. Both the outer frame and the middle mullion have the profile inner cavity (14). The profile inner cavity (14) is filled with the full-section filler (2). The window sash (3) is installed on the outer frame by a hinge.

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