A high-performance aluminum alloy system door
By employing a low-threshold design, a double-layer sealing structure, and a composite structure combining outward-opening door panels with thermal insulation panels, the problems of tripping and air leakage in traditional aluminum alloy system doors, as well as the difficulty in balancing privacy protection and decoration, are solved, achieving a high-performance integration of sealing, insulation, and decoration.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG SONGLIN DOOR & WINDOW TECH CO LTD
- Filing Date
- 2025-09-16
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional aluminum alloy door systems suffer from problems such as tripping or drafts in their threshold design, and it is difficult to optimize privacy protection and decorative requirements in a coordinated manner.
The design features a low threshold combined with a double-layer sealing structure, reinforced door frame profiles, and an outward-opening door structure. This, along with a composite structure of multi-layer rubber strips and thermal insulation boards, achieves a natural transition, enhances sealing and insulation performance, and improves aesthetics.
It achieves a balance between low-threshold accessibility and high sealing performance, enhances the door's wind pressure resistance and thermal insulation performance, and improves privacy protection and decoration.
Smart Images
Figure CN224592024U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building door and window technology, specifically to a high-performance aluminum alloy system door. Background Technology
[0002] Hinged doors, as a common type of door in homes, still have shortcomings in the following structural designs: I. Defects in the use of the threshold structure Traditional high-threshold structures (e.g., height ≥ 70mm) can improve airtightness by increasing the coverage area of the sealing strip, but they are easy to trip over and hinder furniture moving, especially unfriendly to the elderly and children. On the other hand, low-threshold structures (e.g., height ≤ 20mm) are convenient to pass through, but due to insufficient compression of the sealing strip and poor adhesion to the ground, problems such as air leakage and poor sound insulation are caused, which are more obvious in winter when cold winds penetrate and outdoor noise enters.
[0003] To address the aforementioned issues, some products have attempted to combine both "high and low sill thresholds" in their design. However, several problems remain: firstly, the slope transition is unnatural, and right-angle turns are prone to dust accumulation; secondly, the sealing strips have poor compatibility, with ordinary strips exhibiting high hardness and insufficient compression resilience. Ultimately, it remains difficult to simultaneously achieve the dual goals of "low sill passage" and "high sealing performance."
[0004] II. Deficiencies in Privacy Protection Traditional aluminum alloy system doors often use a single piece of glass, which has the advantage of being transparent and beautiful, but cannot meet the privacy protection needs of the 700mm area below the door (such as the height that a person standing in daily use can easily reach when looking down), directly exposing the details of the interior space and reducing the user experience.
[0005] To compensate for the shortcomings of glass in terms of privacy, heat insulation, sound insulation, and strength, existing technologies often use double-sided flat insulation panels as a partial alternative. While these insulation panels can effectively achieve functions such as strength support, thermal insulation, and sound wave damping, their standardized, industrial appearance is severely out of sync with the overall decorative requirements of aluminum alloy system doors, resulting in poor aesthetics in certain areas and disrupting the aesthetic harmony of the door.
[0006] When addressing the above issues, existing solutions often present a trade-off between functional and aesthetic requirements, such as privacy, insulation, sound insulation, and strength: enhancing functionality (e.g., increasing insulation board thickness or density) may further reduce aesthetics; while attempting to improve aesthetics through decorative design (e.g., carving, splicing) may sacrifice material strength or lead to a decline in insulation and sound insulation performance, making it difficult to achieve synergistic optimization of both. Summary of the Invention
[0007] This invention provides a high-performance aluminum alloy system door to optimize the threshold structure and protect privacy.
[0008] A high-performance aluminum alloy system door includes a low threshold, a door frame, a door leaf, and glass. The low threshold includes an interior threshold profile and an exterior threshold profile; each of the interior and exterior threshold profiles has a cavity; and a thermal insulation strip assembly connects the interior and exterior threshold profiles. The door frame includes an interior door frame profile and an exterior door frame profile; a thermal insulation strip assembly two is connected between the interior door frame profile and the exterior door frame profile. The door leaf includes an interior door leaf profile, an exterior door leaf profile, and glass; a thermal insulation strip group three connects the interior door leaf profile and the exterior door leaf profile; and glass connects the two door leaf profiles. The interior sill profile is higher than the exterior sill profile. On the interior side of the interior sill profile, it has rounded corners and its upper surface slopes upwards to the other side. A threaded hole wall is provided in the inner cavity of the upper surface. The exterior sill profile has anti-slip texture on its upper surface and a threaded hole wall is provided in the inner cavity of its upper surface.
[0009] Furthermore, cavities are formed in both the interior and exterior profiles of the door leaf; a pressure line mounting groove is provided on one side of the interior profile of the door leaf, and a step is formed on the other side; a pressure line is installed in the pressure line mounting groove, and an adhesive strip is also installed on the pressure line, with the adhesive strip contacting the glass; When connected to a low threshold, a sealing element connection bracket is installed at the step, and two mounting slots are provided in the sealing element connection bracket; a weatherstripping is installed in the outer mounting slot, and a sealing strip is installed in the inner mounting slot; both the weatherstripping and the sealing strip contact the interior profile of the threshold when the door is closed. In the aforementioned door leaf exterior profile, the outer wall extends to both sides, and one side forms a rubber strip groove after the extension, with the rubber strip contacting the threshold exterior profile or the door frame exterior profile; the other side is fitted with a glass exterior rubber strip.
[0010] Furthermore, the interior profile and exterior profile of the door frame each have a cavity formed therein; a reinforcing rib is formed on one side of the interior profile of the door frame, and a rubber strip groove extends from the other side, with the rubber strip contacting the step of the interior profile of the door leaf. The exterior profile of the door frame has the same structure on both sides, and both sides are equipped with reinforcing ribs.
[0011] Furthermore, the door leaf is also connected to a door panel and a mullion; from one side of the fan profile to the other side of the fan profile, glass, a mullion, and a door panel are connected in sequence. The door panel includes door panel trim profiles and heat insulation board; a heat insulation board is installed between two sets of door panel trim profiles. The interior and exterior profiles of the door panel trim are symmetrically structured and connected by a thermal insulation strip group four. The interior profile of the door panel trim profile has a cavity formed, with the outer cavity wall bulging outward to form a wave pattern; on one side of the cavity, an installation groove is formed, with the outer wall of the installation groove bulging outward to form a textured pattern; on the other side of the cavity, an installation elongated wall is formed, with a reinforcing wall connected to the inner side of the installation elongated wall; the installation elongated wall extends in a concave-convex arc shape. The heat insulation board is installed in the mounting groove.
[0012] Furthermore, the mullion includes an interior mullion profile and an exterior mullion profile, each with a chamber. The interior and exterior mullion profiles are symmetrically distributed on both sides. A groove is provided on the interior mullion profile, a pressure line is installed in the groove, and an interior glass sealing strip is installed on the pressure line. One side of the interior glass sealing strip contacts the glass, while the other side contacts the interior profile of the door panel trim. The aforementioned mullion exterior profile extends to both sides, and glass exterior sealing strips are installed in the grooves in the side extension walls respectively; the glass exterior sealing strip on one side contacts the glass, and the glass exterior sealing strip on the other side contacts the exterior profile of the door panel trim profile.
[0013] The beneficial effects of this utility model are: (1) In the low threshold structure design, the cross-sectional design of high and low slopes and double-layer sealing structure breaks through the limitations of traditional swing doors that "high thresholds cause tripping" or "low thresholds cause air leakage", avoids dust accumulation or tripping at right angles, and ensures unobstructed passage for wheelchairs and strollers.
[0014] (2) In the door frame profile, four reinforcing ribs are set. By optimizing the distribution density, cross-sectional shape and connection method with the main body of the door frame, the overall wind pressure resistance of the door body is effectively improved, and the structural stability requirements of high-rise or strong wind environments are met.
[0015] (3) The structure design of outward opening door leaf with built-in pressure line is adopted: the outward opening door leaf is hinged to the outside of the door frame through the rotating shaft, avoiding the risk of traditional inward opening door being easily affected by external impact; the built-in closed pressure line is precisely matched with the inside of the door frame to form a continuous sealing surface, which not only ensures the basic performance of air tightness and water tightness, but also realizes active anti-theft protection by utilizing the characteristics of outward opening structure.
[0016] (4) The outdoor sealing strips of the glass and the outdoor sealing strips of the door panel are all configured as long-tailed sealing strips, forming an additional heat insulation cavity independent of the main sealing cavity; by increasing the number of cavity layers and the thickness of the air layer, the heat conduction efficiency is effectively reduced and the overall heat insulation performance of the door is enhanced.
[0017] (5) The door panel trim adopts a composite structure. On the basis of achieving privacy protection and basic performance (such as sound insulation and sealing) by relying on the heat insulation board, the door decoration is improved at the same time. Moreover, the door panel trim is reliably connected to the main frame through the glass interior and exterior rubber strips to form an auxiliary heat insulation channel, enhance the overall thermal performance, and realize the integration of the three functions of "privacy-decoration-heat insulation". Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model; Figure 2 This is a schematic diagram of the low-threshold profile structure of this utility model; Figure 3 This is a schematic diagram of the door frame profile structure in this utility model; Figure 4 This is a schematic diagram of the door leaf profile structure in this utility model; Figure 5 This is a schematic diagram of the door leaf profile structure in this utility model; Figure 6 This is a schematic diagram of the structure of Embodiment 2 of this utility model; Figure 7 This is a schematic diagram of the mullion profile structure in this utility model; Figure 8 This is a schematic diagram of the middle door panel structure of this utility model; In the diagram: 1. Door sill interior profile; 2. Door sill exterior profile; 3. Door frame interior profile; 3.1. Sealing strip groove; 4. Door frame exterior profile; 5. Door leaf interior profile; 5.1. Sealing trim installation groove; 5.2. Step; 6. Door leaf exterior profile; 7. Sealing trim; 8. Sealing component connecting bracket; 9. Weatherstripping; 10. Sealing strip; 11. Glass exterior sealing strip; 12. Door panel trim profile; 12.1. Cavity; 12.2. Installation groove; 12.3. Installation long wall; 13. Thermal insulation board; 14. Mullion exterior profile; 15. Mullion interior profile. Detailed Implementation
[0019] The technical solution of the present invention will be further explained and illustrated below through specific embodiments. Example
[0020] See attached diagram. Figures 1-3 This utility model provides a high-performance aluminum alloy system door, including a low threshold, a door frame, a door leaf, and glass; The low threshold includes an interior threshold profile 1 and an exterior threshold profile 2; each of the interior threshold profile 1 and the exterior threshold profile 2 has a cavity formed therein; and a heat insulation strip assembly is connected between the interior threshold profile 1 and the exterior threshold profile 2. The door frame includes an interior door frame profile 3 and an exterior door frame profile 4; each of the interior door frame profile 3 and the exterior door frame profile 4 is provided with a cavity, and a heat insulation strip group 2 is connected between the interior door frame profile 3 and the exterior door frame profile 4. The door leaf includes an interior door leaf profile 5 and an exterior door leaf profile 6; each of the interior door leaf profile 5 and the exterior door leaf profile 6 is provided with a cavity, and a heat insulation strip group three is connected between the interior door leaf profile 5 and the exterior door leaf profile 6; glass is connected between the two door leaf profiles. The heat insulation strips in heat insulation strip group one, heat insulation strip group two, and heat insulation strip group three are all provided with cavities; The interior sill profile 1 is higher than the exterior sill profile 2. On the interior side of the interior sill profile 1, it has rounded corners and its upper surface slopes upwards to the other side; a threaded hole wall is provided in the inner cavity of its upper surface. The exterior sill profile 2 has anti-slip textures on its upper surface and a threaded hole wall is also provided in the inner cavity of its upper surface. In this embodiment, the sill adopts a natural slope with a drop of ≤5mm, with a maximum height of 25mm and a minimum height of 20mm. The transition area uses a rounded chamfer R=1mm to avoid dust accumulation or tripping hazards at right-angle turns, while ensuring unobstructed passage for wheelchairs, strollers, etc.
[0021] Figures 4-5 The door leaf interior profile 5 and the door leaf exterior profile 6 each have a cavity formed; the door leaf interior profile 5 has a pressure line mounting groove 5.1 on one side and a step 5.2 on the other side; a pressure line 7 is installed in the pressure line mounting groove 5.1, and an adhesive strip is also installed on the pressure line 7, which contacts the glass; When connected to a low threshold, a sealing element connecting bracket 8 is installed at the step, and two mounting grooves are provided in the sealing element connecting bracket 8; a weatherstripping 9 is installed in the outer mounting groove, and a sealing strip 10 is installed in the inner mounting groove; when the door is closed, both the weatherstripping 9 and the sealing strip 10 contact the interior profile 1 of the threshold; in this embodiment, a weatherstripping is configured on the inner side of the threshold with a compression of 1mm; the outer side uses EPDM rubber strips with a compression of 2-3mm. This double-layer seal, combined with the equal pressure cavity design with a frame-sash overlap of ≥11mm, effectively blocks the penetration of outdoor hot and cold air.
[0022] In the aforementioned door leaf outdoor profile 6, the outer wall extends to both sides respectively, and one side forms a rubber strip groove after the extension, and the rubber strip contacts the threshold outdoor profile 2 or the door frame outdoor profile 4; the other side is equipped with a glass outdoor rubber strip 11.
[0023] The door frame interior profile has a reinforcing rib on one side and extends to form a rubber strip groove 3.1 on the other side, with the rubber strip contacting the step 5.2 of the door leaf interior profile; In the aforementioned door frame exterior profile 4, both sides have the same structure and are equipped with reinforcing ribs. Example
[0024] Based on the structure of Example 1, see Figures 6-8 The door leaf is also connected to a door panel and a mullion; from one side of the fan profile to the other side of the fan profile, glass, mullion, and door panel are connected in sequence. The door panel includes a door panel trim profile 12 and a heat insulation board 13; the heat insulation board 13 is installed between the two sets of door panel trim profiles. The interior and exterior profiles of the door panel trim are symmetrically structured and connected by a thermal insulation strip group four. In the interior profile of the door panel trim profile, a cavity 12.1 is formed, and the outer cavity wall bulges outward to form a wave pattern; on one side of the cavity 12.1, an installation groove 12.2 is formed, and the outer wall of the installation groove 12.2 bulges outward to form a concave-convex pattern; on the other side of the cavity, an installation elongated wall 12.3 is formed, and a reinforcing wall is connected to the inner side of the installation elongated wall 12.3; the installation elongated wall 12.3 extends in a concave-convex arc shape; The heat insulation board 13 is installed in the mounting groove 12.2.
[0025] The mullion includes an interior mullion profile 15 and an exterior mullion profile 14. Each mullion profile 15 and exterior mullion profile 14 has a chamber, and their two sides are symmetrically distributed. A groove is provided on the interior mullion profile 15, and a pressure line 7 is installed within the groove. An interior glass sealing strip is installed on the pressure line 7. One side of the interior glass sealing strip contacts the glass; the other side contacts the interior profile of the door panel trim profile 12. The mullion exterior profile 14 extends to both sides, and glass exterior sealing strips are installed in the grooves in the side extension walls respectively; the glass exterior sealing strip on one side contacts the glass, and the glass exterior sealing strip on the other side contacts the exterior profile of the door panel trim profile 12.
Claims
1. A high-performance aluminum alloy system door, characterized in that, This includes a low threshold, door frame, door panel, and glass. The low threshold includes an interior threshold profile and an exterior threshold profile; each of the interior and exterior threshold profiles has a cavity; and a thermal insulation strip assembly connects the interior and exterior threshold profiles. The door frame includes an interior door frame profile and an exterior door frame profile; a second set of thermal insulation strips connects the interior door frame profile and the exterior door frame profile. The door leaf includes an interior door leaf profile, an exterior door leaf profile, and glass; a thermal insulation strip group three connects the interior door leaf profile and the exterior door leaf profile; and glass connects the two door leaf profiles. The interior sill profile is higher than the exterior sill profile. On the interior side of the interior sill profile, it has rounded corners and its upper surface slopes upwards to the other side. A threaded hole wall is provided in the inner cavity of the upper surface. The exterior sill profile has anti-slip texture on its upper surface and a threaded hole wall is provided in the inner cavity of its upper surface.
2. The high-performance aluminum alloy system door according to claim 1, characterized in that, The interior and exterior profiles of the door leaf each have cavities formed; the interior profile of the door leaf has a pressure line mounting groove on one side and a step on the other side; a pressure line is installed in the pressure line mounting groove, and an adhesive strip is also installed on the pressure line, with the adhesive strip contacting the glass; When connected to a low threshold, a sealing element connection bracket is installed at the step, and two mounting slots are provided in the sealing element connection bracket; a weatherstripping is installed in the outer mounting slot, and a sealing strip is installed in the inner mounting slot; both the weatherstripping and the sealing strip contact the interior profile of the threshold when the door is closed. In the aforementioned door leaf exterior profile, the outer wall extends to both sides respectively, and one side forms a rubber strip groove after the extension, with the rubber strip contacting the threshold exterior profile or the door frame exterior profile; the other side is installed with a glass exterior rubber strip.
3. The high-performance aluminum alloy system door according to claim 1, characterized in that, The interior and exterior profiles of the door frame each have a cavity; a reinforcing rib is formed on one side of the interior profile of the door frame, and a rubber strip groove extends from the other side, with the rubber strip contacting the step of the interior profile of the door leaf. In the aforementioned door frame exterior profile, both sides have the same structure and are equipped with reinforcing ribs.
4. The high-performance aluminum alloy system door according to claim 1, characterized in that, The door leaf is also connected to a door panel and a mullion; from one side of the fan profile to the other side of the fan profile, glass, mullion, and door panel are connected in sequence. The door panel includes door panel trim profiles and a heat insulation board; a heat insulation board is installed between two sets of door panel trim profiles. The interior and exterior profiles of the door panel trim are symmetrically structured and connected by a thermal insulation strip group four. The interior profile of the door panel trim profile has a cavity formed, with the outer cavity wall bulging outward to form a wave pattern; on one side of the cavity, an installation groove is formed, with the outer wall of the installation groove bulging outward to form a textured pattern; on the other side of the cavity, an installation elongated wall is formed, with a reinforcing wall connected to the inner side of the installation elongated wall; the installation elongated wall extends in a concave-convex arc shape. The heat insulation board is installed in the mounting groove.
5. The high-performance aluminum alloy system door according to claim 4, characterized in that, The mullion includes an interior mullion profile and an exterior mullion profile. Each of the interior and exterior mullion profiles has a chamber, and the structures on both sides of the interior and exterior mullion profiles are symmetrically distributed. A groove is provided on the interior mullion profile, and a pressure line is installed within the groove. An interior glass sealing strip is installed on the pressure line. One side of the interior glass sealing strip contacts the glass; the other side contacts the interior profile of the door panel trim. The aforementioned mullion exterior profile extends to both sides, and glass exterior sealing strips are installed in the grooves in the side extension walls respectively; the glass exterior sealing strip on one side contacts the glass, and the glass exterior sealing strip on the other side contacts the exterior profile of the door panel trim profile.