Door and window profile structure with multiple sealing structures
By using multiple sealing strips and an integrated hollow aluminum strip design, the shortcomings of traditional door and window profiles in terms of sealing performance, sound insulation, and energy saving are solved, achieving multiple sealing, heat insulation, and structural stability.
Patent Information
- Application Number
- CN202520724647.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-04-17
AI Technical Summary
Traditional door and window profiles are inadequate in terms of sealing performance, sound insulation, and energy saving, making it difficult to meet the needs of modern buildings for multiple sealing and thermal insulation.
The system employs the synergistic effect of multiple sealing strips, including an outer double-seal structure, an inner double-seal structure, and a middle seal structure, combined with an integrally molded hollow aluminum strip and a PA66 multi-chamber thermal insulation strip, to form a multi-layer sealing structure.
It significantly improves the sealing and sound insulation performance of doors and windows, enhances thermal insulation performance, strengthens structural stability, reduces energy consumption and maintenance costs, and provides a quiet, dry and energy-efficient living environment.
Smart Images

Figure CN223781375U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window technology, and in particular to a door and window profile structure with a multi-seal structure. Background Technology
[0002] In modern architecture, doors and windows, as an important component of the building envelope, have a crucial impact on the overall quality of a building. As people's living standards continue to improve, the requirements for the sealing performance of doors and windows are increasing. Good sealing performance can not only effectively block the intrusion of outdoor dust, rainwater, and noise, but also play a role in energy conservation and insulation, reducing the building's energy consumption to a certain extent.
[0003] However, traditional door and window profile structures have many shortcomings in terms of sealing. Common sealing methods often rely on only a single or simple sealing strip, making it difficult to form an effective multi-layered sealing protection system. In the face of severe weather conditions, such as strong winds and heavy rain, rainwater can easily seep into the room through weak points in the seal, affecting the indoor environment. Moreover, single-seal structures are inadequate in sound insulation, failing to meet people's demand for a quiet living environment. Furthermore, with the continuous improvement of building energy efficiency standards, existing door and window sealing structures are no longer sufficient to meet new requirements. Therefore, developing a door and window profile structure that can significantly improve sealing performance and possess a multi-layered sealing structure has become an urgent problem to be solved in the field of door and window technology. Utility Model Content
[0004] The purpose of this invention is to overcome the problems existing in the prior art and provide a door and window profile structure with a multi-seal structure. This structure can significantly improve the sealing performance of doors and windows through the synergistic effect of multiple sealing strips. In addition, the use of a double sealing structure with inner and outer seals of the strips provides better sound insulation.
[0005] This utility model is achieved through the following technical solution: a multi-seal door and window profile structure, including mutually cooperating window profiles and frame profiles, with multiple sealing structures between the window profiles and frame profiles. Each sealing structure includes a first sealing strip, a second sealing strip, a third sealing strip, a fourth sealing strip, and a fifth sealing strip. The first and second sealing strips are respectively disposed on the outer connecting sealing surfaces of the window profiles and frame profiles, forming an outer double-seal structure. The third and fourth sealing strips are respectively disposed on the inner connecting sealing surfaces of the window profiles and frame profiles, forming an inner double-seal structure. The fifth sealing strip is disposed in the middle of the window profile. A sealing tongue is disposed on the second sealing strip corresponding to the middle position of the window profile, forming a middle sealing structure.
[0006] To further optimize this utility model, the following technical solutions may be preferred:
[0007] Preferably, the inner and outer surfaces of the window profile and frame profile are flush, and both the window profile and frame profile are integrally formed hollow aluminum strips.
[0008] Preferably, the window profile and frame profile both include an outer shell and an inner shell, and a PA66 multi-chamber thermal insulation strip is provided between the outer shell and the inner shell, forming multiple thermal insulation chambers between the PA66 multi-chamber thermal insulation strip.
[0009] Preferably, the window profile has a first stepped portion corresponding to the position of the outer double sealing structure, and the first stepped portion has a first fixing groove for fixing the first sealing strip. The frame profile has an outer upright portion corresponding to the position of the outer double sealing structure, and the inner side of the outer upright portion has a second fixing groove for fixing the second sealing strip.
[0010] Preferably, the fifth sealing strip is located at the bottom of the window profile and protrudes and rests on the second sealing strip.
[0011] Preferably, the window profile has an inner upright portion corresponding to the inner double sealing structure position, and the inner side of the inner upright portion has a third fixing groove for fixing the third sealing strip. The frame profile has a second step portion corresponding to the inner double sealing structure position, and the second step portion has a fourth fixing groove for fixing the fourth sealing strip. The fourth fixing groove is positioned directly opposite the third fixing groove.
[0012] This utility model has the following effects:
[0013] (1) Excellent sealing performance and sound insulation: The outer double-seal structure formed by the first and second sealing strips on the outside can effectively block outdoor noise from spreading into the room through the gaps in doors and windows. The sealing strips are usually made of materials with good elasticity and sound absorption properties. When external noise comes in, the strips can effectively absorb some of the noise energy and reduce the reflection and refraction of sound. At the same time, the double-seal structure further compresses the path of noise transmission, making it more difficult for noise to penetrate into the room. The inner double-seal structure formed by the third and fourth sealing strips on the inside also plays an important role. Even if a small amount of noise breaks through the outer sealing structure, the inner double-seal structure can intercept and absorb it again. The inner and outer double-seal structures work together to block noise from both sides of the doors and windows, greatly increasing the difficulty of noise transmission. This double-seal structure of strips on strips, through the synergistic effect of multiple sealing strips, greatly extends the path of noise transmission, so that the noise gradually attenuates in the process of being absorbed, reflected and blocked multiple times, thereby significantly improving the sound insulation effect of doors and windows and creating a quieter and more comfortable indoor environment for users.
[0014] (2) The multi-layered sealing structure design, with an outer double sealing structure (first and second sealing strips), an inner double sealing structure (third and fourth sealing strips), and a middle sealing structure (second sealing strip and sealing tongue working together with a fifth sealing strip), works together to greatly reduce gaps, effectively preventing rainwater from seeping in and avoiding water accumulation on windowsills and dampness and mold on walls, creating a dry indoor environment. At the same time, the multiple seals have a significant noise reduction effect, greatly improving the tranquility of the living environment and effectively reducing outdoor noise interference.
[0015] (3) Excellent thermal insulation performance: Both the window profiles and frame profiles use one-piece molded hollow aluminum strips, which inherently possess certain thermal insulation properties. In addition, the PA66 multi-chamber thermal insulation strips installed between the outer and inner shells further prevent heat conduction by forming multiple insulation chambers. This effectively reduces indoor heat loss in winter and blocks outdoor heat from entering in summer, reducing energy consumption of air conditioning and heating equipment, improving the building's energy efficiency, and achieving the goal of energy conservation and environmental protection.
[0016] (4) Good structural stability and strength: The one-piece molded hollow aluminum strip window profile and frame profile ensure the overall structural stability of the profile. The PA66 multi-chamber thermal insulation strip not only plays a role in thermal insulation, but also enhances the connection strength between the outer shell and the inner shell, making the entire door and window profile structure more robust and durable, and extending the service life of the doors and windows.
[0017] (5) Easy to install and maintain: The flush design of the inner and outer surfaces of the window profile and frame profile allows for better integration with the wall and other building structures during installation, making installation more convenient. At the same time, each sealing strip is installed in its corresponding fixing groove, such as the first sealing strip in the first fixing groove and the second sealing strip in the second fixing groove. This clear installation location facilitates the replacement and maintenance of the sealing strips later, reducing maintenance costs.
[0018] (6) Precise sealing fit: The first step and inner vertical part set on the window profile corresponding to each sealing structure position, and the corresponding outer vertical part and second step on the frame profile, etc., make the installation position of the sealing strip precise, and the sealing structure can fit tightly together, further improving the sealing effect and ensuring the reliability of the overall performance of the doors and windows. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the internal structure of door and window profiles;
[0020] Figure 2 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;
[0021] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point B.
[0022] Wherein: 1-Window profile; 2-Frame profile; 3-First sealing strip; 4-Second sealing strip; 5-Third sealing strip; 6-Fourth sealing strip; 7-Fifth sealing strip; 8-Sealing tongue; 9-Outer shell; 10-Inner shell; 11-PA66 multi-chamber thermal insulation strip; 12-First fixing groove; 13-Second fixing groove; 14-First step; 15-Outer vertical part; 16-Third fixing groove; 17-Fourth fixing groove; 18-Second step; 19-Inner vertical part. Detailed Implementation
[0023] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" 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 utility model based on the specific circumstances.
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0025] Example 1
[0026] like Figure 1-3The diagram shows a multi-seal door and window profile structure, comprising a window profile 1 and a frame profile 2 that cooperate with each other. Multiple sealing structures are installed between the window and frame profiles, including a first sealing strip 3, a second sealing strip 4, a third sealing strip 5, a fourth sealing strip 6, and a fifth sealing strip 7. The first and second sealing strips are respectively installed on the outer connecting sealing surfaces of the window and frame profiles, forming an external double-seal structure. This external double-seal structure (first and second sealing strips) achieves: ① Waterproofing and windproofing: The first and second sealing strips on the outer connecting sealing surfaces of the window and frame profiles form an external double-seal structure, greatly enhancing the door and window's ability to resist rain and strong winds. Rainwater is difficult to seep into the room through external gaps, effectively preventing dampness and mold on window sills and walls, reducing the risk of interior decoration damage and furniture corrosion caused by water damage. In strong winds, the external double-seal structure reduces wind noise entering the room, creating a quiet indoor environment. ②Durability: The double seal shares the burden of external environmental erosion on the sealing strip, extending its service life. Compared to a single-seal structure, the external double-seal structure can maintain good sealing performance even under long-term exposure to wind, sun, and rain, reducing the frequency of replacing door and window components due to sealing strip aging and lowering maintenance costs.
[0027] The third and fourth sealing strips are installed on the inner connecting sealing surfaces of the window and frame profiles, forming an inner double-seal structure. This inner double-seal structure (third and fourth sealing strips) achieves the following: ① Thermal insulation: The third and fourth sealing strips at the inner connecting sealing surfaces form an inner double-seal structure, further enhancing the thermal insulation performance of doors and windows. In winter, indoor heat is less likely to escape through gaps in doors and windows, reducing heat loss and heating energy consumption, thus saving energy costs. In summer, outdoor heat is also less likely to enter the room through inner gaps, keeping the room cool, improving air conditioning cooling efficiency, and reducing air conditioning power consumption. ② Dust and insect prevention: The inner double-seal structure effectively blocks dust, pollen, and other fine particles, as well as mosquitoes, from entering the room. For users living in dusty urban areas or near green areas prone to mosquito infestations, this structure helps maintain indoor cleanliness, reduces cleaning frequency, and prevents mosquito bites, improving living comfort.
[0028] The fifth sealing strip is installed in the middle of the window profile, and a sealing tongue 8 is designed on the second sealing strip corresponding to the middle position of the window profile. The second sealing strip and the sealing tongue form a mid-seal structure. This structural design: ① Enhances overall sealing: The fifth sealing strip, located in the middle of the window profile, forms a mid-seal structure with the sealing tongue on the second sealing strip, further optimizing the overall sealing effect. This structure fills any potential gaps in the middle of the window profile, ensuring tight sealing protection at all locations, thus improving the overall sealing performance of the doors and windows and providing a more stable indoor environment. ② Increases structural stability: The fifth sealing strip protrudes and rests on the second sealing strip, providing a seal while also offering some support between the window profile and the frame profile, enhancing the stability of the door and window structure. Especially when doors and windows are frequently opened and closed or subjected to high wind pressure, it can reduce the relative displacement between the window profile and the frame profile, extending the overall service life of the doors and windows.
[0029] As a preferred embodiment, the inner and outer surfaces of window profile 1 and frame profile 2 are flush, and both window profile and frame profile are integrally formed hollow aluminum strips; the above structure: (1) Aesthetics and practicality of the flush design: The flush design of the inner and outer surfaces of window profile and frame profile not only makes the appearance of doors and windows more concise and beautiful, meeting the aesthetic needs of modern architecture, but also makes it more convenient to clean doors and windows, with no uneven parts accumulating dust, making it easy to wipe and saving cleaning time and effort. (2) Advantages of integrally formed hollow aluminum strips: Both window profile and frame profile are integrally formed hollow aluminum strips. The integral forming process reduces the gaps between profile splicing and reduces the problem of poor sealing caused by splicing. The hollow aluminum strip structure has good thermal insulation performance while ensuring the strength of the profile, further improving the thermal insulation effect of doors and windows, and reducing the overall weight of doors and windows, making it convenient for installation and daily use.
[0030] In a preferred embodiment, both the window profile 1 and the frame profile 2 include an outer shell 9 and an inner shell 10. A PA66 multi-chamber thermal insulation strip 11 is installed between the outer shell and the inner shell, forming multiple thermal insulation chambers. This structural design has the following advantages: ① Excellent thermal insulation performance: The PA66 multi-chamber thermal insulation strip and the multiple thermal insulation chambers formed between the outer shell and the inner shell significantly improve the thermal insulation performance of the doors and windows. PA66 material itself has excellent thermal insulation properties, and the multi-chamber structure further prevents heat conduction, greatly reducing the rate of heat exchange between indoors and outdoors, effectively improving the thermal insulation effect of the doors and windows, making the indoor temperature more stable, and reducing the impact of temperature fluctuations on human comfort. ② Enhanced structural strength: While providing thermal insulation, the PA66 multi-chamber thermal insulation strip also enhances the overall structural strength of the window profile and frame profile. The multi-chamber structure acts like multiple supporting frames, enabling the profiles to better distribute stress when subjected to external forces, reducing the risk of deformation, extending the service life of doors and windows, and improving the reliability of doors and windows in various harsh environments.
[0031] In a preferred embodiment, a first stepped portion 14 is designed on the window profile corresponding to the outer double-seal structure position. A first fixing groove 12 for fixing the first sealing strip is provided on the first stepped portion. An outer upright portion 15 is designed on the frame profile corresponding to the outer double-seal structure position. A second fixing groove 13 for fixing the second sealing strip is designed on the inner side of the outer upright portion 15. In a preferred embodiment, the fifth sealing strip is installed at the bottom of the window profile and protrudes and abuts against the second sealing strip. In a preferred embodiment, an inner upright portion 19 is installed on the window profile corresponding to the inner double-seal structure position. A third fixing groove 16 for fixing the third sealing strip is provided on the inner side of the inner upright portion 19. A second stepped portion 18 is designed on the frame profile corresponding to the inner double-seal structure position. A fourth fixing groove 17 for fixing the fourth sealing strip is provided on the second stepped portion, with the fourth fixing groove positioned directly opposite the third fixing groove.
[0032] The design of the sealing strip fixing groove is as follows: (1) Convenience of installation: The fixing grooves set on the window profiles and frame profiles corresponding to the positions of each sealing strip, such as the first fixing groove, the second fixing groove, the third fixing groove, and the fourth fixing groove, make the installation of the sealing strip simple and quick. During the production of doors and windows, workers can directly embed the sealing strip into the corresponding fixing groove without complicated installation processes, which improves production efficiency and reduces labor costs. (2) Stability of sealing strip: The design of the fixing groove can ensure that the sealing strip always stays in the correct position during use and is not prone to displacement or falling off. Even if the doors and windows are frequently opened and closed and subjected to external forces such as large wind pressure and vibration, the sealing strip can still be firmly fixed in the fixing groove, continuously exert good sealing performance, and ensure the overall quality and performance stability of the doors and windows.
[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A door and window profile structure with a multi-layer sealing structure, characterized in that: The system includes mutually cooperating window profiles and frame profiles, with multiple sealing structures between the window profiles and frame profiles. These multiple sealing structures include a first sealing strip, a second sealing strip, a third sealing strip, a fourth sealing strip, and a fifth sealing strip. The first and second sealing strips are respectively located on the outer connecting sealing surfaces of the window profiles and frame profiles, forming an outer double sealing structure. The third and fourth sealing strips are respectively located on the inner connecting sealing surfaces of the window profiles and frame profiles, forming an inner double sealing structure. The fifth sealing strip is located in the middle of the window profile. A sealing tongue is provided on the second sealing strip corresponding to the middle position of the window profile, forming a middle sealing structure.
2. The door and window profile structure with a multi-seal structure according to claim 1, characterized in that: The inner and outer surfaces of the window profile and frame profile are flush, and both the window profile and frame profile are integrally formed hollow aluminum strips.
3. The door and window profile structure with a multi-seal structure according to claim 1, characterized in that: The window profile and frame profile both include an outer shell and an inner shell. A PA66 multi-chamber thermal insulation strip is provided between the outer shell and the inner shell, and multiple thermal insulation chambers are formed between the PA66 multi-chamber thermal insulation strip.
4. The door and window profile structure with a multi-seal structure according to claim 1, characterized in that: The window profile has a first step portion corresponding to the position of the outer double sealing structure. The first step portion has a first fixing groove for fixing the first sealing strip. The frame profile has an outer upright portion corresponding to the position of the outer double sealing structure. The inner side of the outer upright portion has a second fixing groove for fixing the second sealing strip.
5. The door and window profile structure with a multi-seal structure according to claim 2, characterized in that: The fifth sealing strip is located at the bottom of the window profile and protrudes and rests on the second sealing strip.
6. The door and window profile structure with a multi-seal structure according to claim 1, characterized in that: The window profile has an inner upright part corresponding to the inner double sealing structure position. The inner side of the inner upright part has a third fixing groove for fixing the third sealing strip. The frame profile has a second step part corresponding to the inner double sealing structure position. The second step part has a fourth fixing groove for fixing the fourth sealing strip. The fourth fixing groove is positioned directly opposite the third fixing groove.