Large-size system door and window sealing structure
By using a sealing strip composed of a rigid base and a soft, elastic rubber strip in large-size system doors and windows, combined with the semi-embedded installation of the buckle strip and positioning groove, the problem of unstable sealing performance caused by installation tolerances and structural deformation is solved, achieving a stable sealing effect and convenient maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG YUELONGMEN TECH CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-14
AI Technical Summary
Large-size system doors and windows suffer from unstable sealing performance due to tolerance sensitivity, structural deformation, and aging of sealing strips during installation. This affects rainwater leakage, wind pressure penetration, and airtightness, increasing maintenance costs.
The sealing strip consists of a rigid base and a soft, elastic rubber strip. It provides rigid support and elastic sealing through a snap-on strip, positioning groove, and semi-embedded installation method, which can adapt to installation tolerances and structural deformations and facilitate modular replacement.
It achieves stable sealing performance for large-size system doors and windows, reduces maintenance costs, and improves product consistency and service life.
Smart Images

Figure CN224496289U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of doors and windows, and in particular to a sealing structure for large-size system doors and windows. Background Technology
[0002] Large-size system windows and doors are widely used in public buildings, commercial curtain walls, and high-end residences due to their expansive views and modern aesthetics. However, their large size and heavy weight also present challenges to sealing performance. Current methods often use soft rubber or silicone sealing strips, assembled between the door leaf and frame profiles through edge pressing, embedding, or snap-fit methods. However, in actual installation, the following shortcomings exist:
[0003] 1. Installation tolerance is sensitive. Large-span profiles are prone to uneven gaps between door leaves and door frames due to deviations in on-site processing, transportation and installation. Conventional soft sealing strips are difficult to adapt to width changes and cannot obtain a consistent amount of compression, resulting in poor sealing.
[0004] 2. Structural deformation: Under wind load or temperature difference, the wide profiles may bend or expand and contract due to thermal expansion and contraction. The original sealing strips may be unevenly stressed, resulting in localized warping or flattening and reduced sealing performance.
[0005] 3. Aging and maintenance costs: Soft sealing strips are prone to hardening and cracking when exposed to ultraviolet rays, rain, and hot and cold cycles for a long time, requiring regular replacement and increasing later maintenance costs.
[0006] The aforementioned deficiencies make it difficult for large-size system windows and doors to consistently meet standards in terms of rainwater leakage, wind pressure penetration, and airtightness, which also affects product consistency and service life. Utility Model Content
[0007] This utility model relates to a large-size system door and window sealing structure, including: a door leaf and a door frame, the door frame and the door leaf are connected by hinges, the door leaf includes a frame formed by door leaf frame profiles, the door leaf frame profiles are semi-embedded with an outer sealing strip, the outer sealing strip seals the contact surface between the inner profile of the door frame and the door leaf frame profile, the door leaf frame profiles are semi-embedded with a middle sealing strip, the middle sealing strip of the door leaf is composed of a rigid base and a soft elastic rubber strip;
[0008] The door frame includes a frame formed by the fitting and connection of the inner profile and the outer profile. The inner profile is semi-embedded with an inner sealing strip, which seals the contact surface between the inner profile and the door frame profile. The inner profile is semi-embedded with a middle sealing strip, which consists of a rigid base and a soft elastic rubber strip.
[0009] The soft, elastic rubber strip of the door leaf center sealing strip is squeezed against the soft, elastic rubber strip of the door frame center sealing strip to seal the contact surface between the door frame profile and the door leaf frame profile.
[0010] This utility model provides a large-size system door and window sealing structure that combines rigid support and elastic sealing, and is easy to modularly replace and maintain, by setting sealing strips composed of rigid bases and soft elastic rubber strips in the middle and inner and outer sides of the door leaf and door frame profiles, and in conjunction with buckle strips, positioning grooves and semi-embedded installation methods. It solves the problem of unstable sealing performance of existing large-size doors and windows due to large installation tolerances, easy structural deformation and aging of sealing strips.
[0011] To achieve the above objectives, the present invention adopts the following technical solution:
[0012] A large-size system door and window sealing structure includes: a door leaf and a door frame, the door frame and the door leaf are connected by hinges, the door leaf includes a frame formed by door leaf frame profiles, the door leaf frame profiles are semi-embedded with an outer sealing strip, the outer sealing strip seals the contact surface between the inner profile of the door frame and the door leaf frame profile, the door leaf frame profiles are semi-embedded with a middle sealing strip, the middle sealing strip is composed of a rigid base and a soft elastic rubber strip;
[0013] The door frame includes a frame formed by the fitting and connection of the inner profile and the outer profile. The inner profile is semi-embedded with an inner sealing strip, which seals the contact surface between the inner profile and the door frame profile. The inner profile is semi-embedded with a middle sealing strip, which consists of a rigid base and a soft elastic rubber strip.
[0014] The soft, elastic rubber strip of the door leaf center sealing strip is squeezed against the soft, elastic rubber strip of the door frame center sealing strip to seal the contact surface between the door frame profile and the door leaf frame profile.
[0015] Further, the inner side of the door frame profile is provided with: an insulation block connecting strip and an insulation block positioning strip. The insulation block connecting strip is connected to the door insulation connecting groove of the door insulation filling block, and the insulation block positioning strip is connected to the door insulation positioning notch of the door insulation filling block. The outer side of the door frame profile is provided with: an outer sealing strip mounting groove, a door leaf middle sealing strip mounting groove, and a door leaf middle sealing strip mounting buckle. The outer sealing strip buckle is embedded in the outer sealing strip mounting groove. The inner profile of the door frame and the door frame profile squeeze the outer sealing strip to achieve sealing.
[0016] Furthermore, the rigid base of the door leaf center sealing strip is provided with: a door leaf center sealing strip buckle and a door leaf center sealing strip buckle groove. The door leaf center sealing strip buckle is embedded in the door leaf center sealing strip mounting groove, and the door leaf center sealing strip mounting buckle is embedded in the door leaf center sealing strip buckle groove, thereby realizing the fixed connection between the rigid base of the door leaf center sealing strip and the door leaf frame profile.
[0017] Further, the outer side of the inner profile of the door frame is provided with: inner connecting mounting strip one, inner connecting mounting strip two, and inner connecting mounting groove; the inner side of the outer profile of the door frame is provided with: outer profile mounting groove one, outer profile mounting groove two, and outer profile fastener. Inner connecting mounting strip one is embedded in outer profile mounting groove one, inner connecting mounting strip two is embedded in outer profile mounting groove two, and outer profile fastener is embedded in inner connecting mounting groove, thereby achieving a fixed connection between the inner profile of the door frame and the outer profile of the door frame.
[0018] Further, the inner side of the door frame profile is provided with: an inner sealing strip mounting groove, a door frame middle sealing strip mounting groove, a door frame middle sealing strip mounting buckle, and a door frame middle sealing strip positioning groove. The inner sealing strip buckle is embedded in the inner sealing strip mounting groove, and the door frame profile and the door leaf frame profile squeeze the inner sealing strip to achieve sealing.
[0019] Further, the rigid base of the door frame center sealing strip is provided with: a door frame center sealing strip buckle, a door frame center sealing strip buckle groove, and a door frame center sealing strip positioning strip. The door frame center sealing strip buckle is embedded in the door frame center sealing strip mounting groove, the door frame center sealing strip mounting buckle is embedded in the door frame center sealing strip buckle groove, and the door frame center sealing strip positioning strip cooperates with the door frame center sealing strip positioning groove for positioning, thereby realizing the fixed connection between the rigid base of the door frame center sealing strip and the profile inside the door frame.
[0020] This utility model provides a large-size system door and window sealing structure that combines rigid support and elastic sealing, and is easy to modularly replace and maintain, by setting sealing strips composed of rigid bases and soft elastic rubber strips in the middle and inner and outer sides of the door leaf and door frame profiles, and in conjunction with buckle strips, positioning grooves and semi-embedded installation methods. It solves the problem of unstable sealing performance of existing large-size doors and windows due to large installation tolerances, easy structural deformation and aging of sealing strips. Attached Figure Description
[0021] Figure 1 A front view of a product using the structure of this utility model;
[0022] Figure 2 This is a cross-sectional view of the present invention;
[0023] In the diagram: 1. Door leaf; 2. Door leaf frame profile; 21. Insulation block connecting strip; 22. Insulation block positioning strip; 23. Outer sealing strip mounting groove; 24. Door leaf center sealing strip mounting groove; 25. Door leaf center sealing strip mounting clip.
[0024] 26. Door leaf insulation filling block; 27. Door leaf insulation positioning notch; 28. Door leaf insulation connecting groove.
[0025] 3. Door frame; 4. Inner profile of door frame; 41. Inner sealing strip mounting groove; 42. Door frame center sealing strip mounting groove; 43. Door frame center sealing strip mounting buckle; 44. Door frame center sealing strip positioning groove; 45. Inner connection mounting buckle one; 46. Inner connection mounting buckle two; 47. Inner connection mounting groove.
[0026] Door frame outer profile 5, outer profile mounting groove one 51, outer profile mounting groove two 52, outer profile fastening strip 53.
[0027] Door leaf center sealing strip 61, door leaf center sealing strip buckle 62, door leaf center sealing strip buckle groove 63
[0028] 64. Door frame center sealing strip; 65. Door frame center sealing strip buckle; 66. Door frame center sealing strip buckle groove; 67. Door frame center sealing strip positioning strip; 68. Rigid base; 69. Soft elastic rubber strip.
[0029] 7. Outer sealing strip, 71. Outer sealing strip buckle, 8. Inner sealing strip, 81. Inner sealing strip buckle, 9. Decorative panel. Detailed Implementation
[0030] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.
[0032] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.
[0034] According to the contents of the claim and specification, the specific implementation method is as follows:
[0035] like Figure 1-2As shown, this utility model provides a large-size system door and window sealing structure, including: a door leaf 1 and a door frame 3. The door frame 3 and the door leaf are connected by hinges. The door leaf 1 includes a frame formed by door leaf frame profiles 2. The door leaf frame profiles 2 are semi-embedded with an outer sealing strip 7, which seals the contact surface between the inner profile 4 of the door frame and the door leaf frame profile 2. The door leaf frame profiles 2 are semi-embedded with a middle sealing strip 61, which is composed of a rigid base and a soft elastic rubber strip 68. The door frame 3 includes a door leaf frame formed by the inner profile 4 of the door frame 2. The frame is formed by fitting and connecting the outer profile 5 of the door frame together. The inner profile 4 of the door frame is semi-embedded with an inner sealing strip 8, which seals the contact surface between the inner profile 4 of the door frame and the door leaf frame profile 2. The inner profile 4 of the door frame is semi-embedded with a middle sealing strip 64 of the door frame, which is composed of a rigid base and a soft elastic rubber strip 68. The soft elastic rubber strip 68 of the middle sealing strip 61 of the door leaf and the soft elastic rubber strip 68 of the middle sealing strip 64 of the door frame are squeezed to seal the contact surface between the inner profile 4 of the door frame and the door leaf frame profile 2.
[0036] Preferably, the inner side of the door frame profile 2 is provided with: an insulation block connecting strip 21 and an insulation block positioning strip 22. The insulation block connecting strip 21 is connected to the door insulation connecting groove 28 of the door insulation filling block 26, and the insulation block positioning strip 22 is connected to the door insulation positioning notch 27 of the door insulation filling block 26. The outer side of the door frame profile 2 is provided with: an outer sealing strip mounting groove 23, a door middle sealing strip mounting groove 24, and a door middle sealing strip mounting buckle 25. The outer sealing strip buckle 71 of the outer sealing strip 7 is embedded in the outer sealing strip mounting groove 23. After the soft elastic rubber strip comes into contact with the inner profile 4 of the door frame, it achieves a primary seal by compression.
[0037] Preferably, the outer side of the inner profile 4 of the door frame is provided with: an inner connecting mounting strip 45, an inner connecting mounting strip 46, and an inner connecting mounting groove 47. The inner side of the outer profile 5 of the door frame is provided with: an outer profile mounting groove 51, an outer profile mounting groove 52, and an outer profile mounting strip 53. The inner connecting mounting strip 45 is embedded in the outer profile mounting groove 51, the inner connecting mounting strip 46 is embedded in the outer profile mounting groove 52, and the outer profile mounting strip 53 is embedded in the inner connecting mounting groove 47, thereby achieving a fixed connection between the inner profile 4 of the door frame and the outer profile 5 of the door frame.
[0038] Preferably, the inner side of the door frame profile 4 is provided with: an inner sealing strip mounting groove 41, a door frame middle sealing strip mounting groove 42, a door frame middle sealing strip mounting buckle 43, and a door frame middle sealing strip positioning groove 44. The inner sealing strip buckle 81 of the inner sealing strip 8 is embedded in the inner sealing strip mounting groove 41. After the soft elastic rubber strip comes into contact with the door frame profile 2, it achieves a primary seal by compression.
[0039] Preferably, the rigid base of the door leaf middle sealing strip 61 is provided with: a door leaf middle sealing strip buckle 62 and a door leaf middle sealing strip buckle groove 63. The door leaf middle sealing strip buckle 62 is embedded in the door leaf middle sealing strip mounting groove 24, and the door leaf middle sealing strip mounting buckle 25 is embedded in the door leaf middle sealing strip buckle groove 63, so as to realize the fixed connection between the rigid base of the door leaf middle sealing strip 61 and the door leaf frame profile 2.
[0040] Preferably, the rigid base of the door frame middle sealing strip 64 is provided with: a door frame middle sealing strip buckle 65, a door frame middle sealing strip buckle groove 66, and a door frame middle sealing strip positioning strip 67. The door frame middle sealing strip buckle 65 is embedded in the door frame middle sealing strip mounting groove 42, the door frame middle sealing strip mounting buckle 43 is embedded in the door frame middle sealing strip buckle groove 66, and the door frame middle sealing strip positioning strip 67 cooperates with the door frame middle sealing strip positioning groove 44 for positioning, thereby realizing the fixed connection between the rigid base of the door frame middle sealing strip 64 and the profile 4 inside the door frame.
[0041] Preferably, the middle portions of the door leaf frame profile 2 and the inner door frame profile 4 are respectively semi-embedded with a door leaf intermediate sealing strip 61 and a door frame intermediate sealing strip 64. Each intermediate sealing strip consists of a rigid base and a soft elastic rubber strip 68. The rigid base is embedded in the door leaf frame profile 2 and the inner door frame profile 4 to ensure reliable positioning of the sealing strip. When the door is closed, the soft elastic rubber strip 68 is pressed against the opposite sealing strip to achieve secondary airtightness and watertightness protection.
[0042] Preferably, when the sealing strip ages or is damaged, the snap strip in the corresponding installation groove can be removed first, the soft rubber strip and the hard base unit can be taken out, and a new intermediate sealing strip module can be reinstalled. There is no need to completely disassemble the door leaf or door frame profile, making maintenance simple.
[0043] Preferably, the front and rear ends of the door leaf 1 and the door frame 3 are provided with encapsulated decorative panels 9.
[0044] This utility model provides a large-size system door and window sealing structure that combines rigid support and elastic sealing, and is easy to modularly replace and maintain, by setting sealing strips composed of rigid bases and soft elastic rubber strips 68 in the middle and inner and outer sides of the door leaf 1 and door frame 3 profiles, and in conjunction with buckle strips, positioning grooves and semi-embedded installation method. It solves the problem of unstable sealing performance of existing large-size doors and windows due to large installation tolerances, easy structural deformation and aging of sealing strips.
[0045] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
Claims
1. A large-size system door and window sealing structure, comprising: Door leaf (1), door frame (3), the door frame (3) and the door leaf are connected by hinges, characterized in that: the door leaf (1) includes a frame formed by the door leaf frame profile (2), the door leaf frame profile (2) is semi-embedded with an outer sealing strip (7), the outer sealing strip (7) seals the contact surface between the inner profile (4) of the door frame and the door leaf frame profile (2), the door leaf frame profile (2) is semi-embedded with a door leaf middle sealing strip (61), the door leaf middle sealing strip (61) is composed of a rigid base and a soft elastic rubber strip (68); The door frame (3) includes a frame formed by the inlay connection of the inner profile (4) and the outer profile (5). The inner profile (4) is semi-embedded with an inner sealing strip (8). The inner sealing strip (8) seals the contact surface between the inner profile (4) and the door leaf frame profile (2). The inner profile (4) is semi-embedded with a middle sealing strip (64). The middle sealing strip (64) is composed of a rigid base and a soft elastic rubber strip (68). The soft elastic rubber strip (68) of the door leaf middle sealing strip (61) and the soft elastic rubber strip (68) of the door frame middle sealing strip (64) are squeezed together to seal the contact surface between the door frame inner profile (4) and the door leaf frame profile (2).
2. The large-size system door and window sealing structure according to claim 1, characterized in that: The inner side of the door frame profile (2) is provided with: insulation block connecting strip (21) and insulation block positioning strip (22). The insulation block connecting strip (21) is connected to the door insulation connecting groove (28) of the door insulation filling block (26). The insulation block positioning strip (22) is connected to the door insulation positioning notch (27) of the door insulation filling block (26). The outer side of the door frame profile (2) is provided with: outer sealing strip installation groove (23), door middle sealing strip installation groove (24), and door middle sealing strip installation buckle (25). The outer sealing strip buckle (71) of the outer sealing strip (7) is embedded in the outer sealing strip installation groove (23). The inner profile (4) of the door frame and the door frame profile (2) squeeze the outer sealing strip (7) to achieve sealing.
3. The large-size system door and window sealing structure according to claim 2, characterized in that: The rigid base of the door leaf middle sealing strip (61) is provided with: door leaf middle sealing strip buckle (62) and door leaf middle sealing strip buckle groove (63). The door leaf middle sealing strip buckle (62) is embedded in the door leaf middle sealing strip mounting groove (24), and the door leaf middle sealing strip mounting buckle (25) is embedded in the door leaf middle sealing strip buckle groove (63), so as to realize the fixed connection between the rigid base of the door leaf middle sealing strip (61) and the door leaf frame profile (2).
4. The large-size system door and window sealing structure according to claim 1, characterized in that: The outer side of the inner profile (4) of the door frame is provided with: inner connecting mounting strip one (45), inner connecting mounting strip two (46), and inner connecting mounting groove (47). The inner side of the outer profile (5) of the door frame is provided with: outer profile mounting groove one (51), outer profile mounting groove two (52), and outer profile mounting strip (53). The inner connecting mounting strip one (45) is embedded in the outer profile mounting groove one (51), the inner connecting mounting strip two (46) is embedded in the outer profile mounting groove two (52), and the outer profile mounting strip (53) is embedded in the inner connecting mounting groove (47), so as to realize the fixed connection between the inner profile (4) of the door frame and the outer profile (5) of the door frame.
5. The large-size system door and window sealing structure according to claim 1, characterized in that: The inner side of the door frame profile (4) is provided with: inner sealing strip installation groove (41), door frame middle sealing strip installation groove (42), door frame middle sealing strip installation buckle (43), and door frame middle sealing strip positioning groove (44). The inner sealing strip buckle (81) of the inner sealing strip (8) is embedded in the inner sealing strip installation groove (41). The inner door frame profile (4) and the door leaf frame profile (2) squeeze the inner sealing strip (8) to achieve sealing.
6. The large-size system door and window sealing structure according to claim 5, characterized in that: The rigid base of the door frame middle sealing strip (64) is provided with: door frame middle sealing strip buckle (65), door frame middle sealing strip buckle groove (66), and door frame middle sealing strip positioning strip (67). The door frame middle sealing strip buckle (65) is embedded in the door frame middle sealing strip mounting groove (42), the door frame middle sealing strip mounting buckle (43) is embedded in the door frame middle sealing strip buckle groove (66), and the door frame middle sealing strip positioning strip (67) cooperates with the door frame middle sealing strip positioning groove (44) for positioning, so as to realize the fixed connection between the rigid base of the door frame middle sealing strip (64) and the profile (4) inside the door frame.