A sealing strip with a sheet for building doors and windows

Abstract

The utility model discloses a kind of patch type sealing strips for building doors and windows, including bottom sheet, the top surface of the bottom sheet is fixedly connected with sealing strip body, cavity is equipped in the sealing strip body, two sponge strips are fixed symmetrically in the cavity, the top surface of the bottom sheet is fixedly connected with multiple patch bodies of equidistant distribution symmetrically, the junction of the patch body and the bottom sheet is fixedly connected with adhesive tape.

Description

Technical Field

[0001] This utility model relates to the field of sealing strip technology, and in particular to a sheet-type sealing strip for building doors and windows. Background Technology

[0002] As a key component of the building envelope, the sealing performance of building doors and windows directly affects the building's energy efficiency, sound insulation, wind and water resistance, and living comfort. Sealing strips, installed between the door and window frames and sashes, are the core component that achieves a sealing function by elastically deforming and filling gaps.

[0003] Traditional sealing strips are typically irregularly shaped structures made of a single material, such as solid rubber strips or foam tube strips. Their sealing principle mainly relies on the elastic recovery force of the material itself, which deforms when squeezed by door or window sashes to block the passage of air, moisture, and sound.

[0004] To achieve a high level of sealing, the sealing strip needs to have a large compressive reaction force to ensure that the gap remains tight even under wind pressure. However, this results in the door and window sashes having to overcome enormous resistance when closing, leading to excessive opening and closing force, inconvenient operation, and a negative impact on the lifespan of the hardware. Conversely, if a softer sealing strip is used to reduce the opening and closing force, its sealing force may be insufficient, making it difficult to guarantee a sealing effect under inclement weather. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a sheet-type sealing strip for building doors and windows.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a sheet-type sealing strip for building doors and windows, comprising a base sheet, a sealing strip body fixedly connected to the top surface of the base sheet, a cavity provided inside the sealing strip body, two sponge strips symmetrically fixed inside the cavity, multiple equidistantly distributed sheet bodies symmetrically fixed to the top surface of the base sheet, and adhesive strips fixedly connected to the corners of the connection between the sheet bodies and the base sheet.

[0007] The bottom surface of the base plate is fixedly connected to a limiting strip, and the bottom surface of the limiting strip is fixedly connected to a limiting piece. The limiting piece and the limiting strip are an integral structure, which improves the stability and convenience of the sealing strip during installation. When the sealing strip is pressed into the installation groove of the door or window frame, the limiting piece can undergo elastic deformation, which facilitates insertion. Once installed in place, the limiting piece will return to its original shape or be stuck at the edge of the groove, working together with the limiting strip to form an effective anchor point. This effectively prevents the sealing strip from loosening, twisting, or even falling off due to frequent opening and closing of doors and windows or wind loads during daily use, ensuring the long-term reliability of the sealing effect, and also simplifying the installation process.

[0008] The base plate, the sealing strip body, and the limiting strip are all made of rubber, ensuring the overall elasticity, durability, and environmental adaptability of the sealing strip body. Rubber has excellent elasticity and recovery ability, ensuring that the sealing strip can effectively rebound after long-term compression, maintaining continuous sealing force. Simultaneously, rubber has good weather resistance, aging resistance, and temperature resistance, adapting to outdoor sun and rain, and seasonal temperature changes, extending the service life of the sealing strip. Furthermore, using the same material facilitates one-time molding through processes such as co-extrusion, simplifying the manufacturing process and ensuring the strong connection between components.

[0009] The reinforcing strip body is made of nylon. Using nylon as the reinforcing strip ensures that the strip is not easily bent or deformed under pressure, effectively dispersing and transmitting the closing force of the door and window sash to the bottom plate and the entire sealing strip, thus providing stable support in areas requiring greater sealing force. At the same time, the low coefficient of friction reduces the sliding resistance when the door and window sash contacts the nylon reinforcing strip during opening and closing, which directly contributes to reducing the overall opening and closing force of the door and window, resolving the contradiction between high sealing level and easy operation.

[0010] The side of the sponge strip has honeycomb holes, which further improves the sound insulation and cushioning performance of the sealing strip. The honeycomb structure significantly increases the air chambers and tortuous paths inside the sponge strip. When sound waves enter, they will undergo multiple reflections, friction and interference within this structure, thereby more effectively consuming sound energy and improving the sound insulation effect in the mid and low frequency range. At the same time, this porous structure gives the sponge strip better compression adaptability, which can better absorb and disperse the impact force when the door and window sashes are closed, playing a cushioning role, making the closing process smoother, and reducing the impact on hardware.

[0011] Two soft magnetic strips are symmetrically embedded on the bottom surface of the substrate, achieving a leap in airtightness and watertightness. When the door and window are closed, the soft magnetic strip on the sealing strip attracts the metal suction strip or another soft magnetic strip installed in the corresponding position (such as the door frame / window frame), generating a strong and uniform magnetic force. This magnetic force assists the elastic force of the sealing strip itself to ensure a tight fit of the sealing interface. Even under negative wind pressure, the magnetic force can effectively resist the opening of the gap, thereby significantly improving the wind pressure resistance and waterproof penetration ability of the door and window, making it particularly suitable for occasions with extreme requirements for sealing performance.

[0012] The double-sided adhesive tape bonded to the bottom of the soft magnetic strip enhances the initial fixing effect during installation; the double-sided adhesive tape allows the sealing strip to be pre-fixed by adhesion before it is officially inserted into the installation groove, which is particularly convenient for construction positioning and prevents displacement during installation.

[0013] This utility model has the following beneficial effects: 1. Compared with existing technologies, the innovative added-plate structure effectively solves the contradiction between high sealing performance and low opening and closing force of traditional sealing strips; the nylon added plate, with its high rigidity and low coefficient of friction, can effectively disperse the closing force to provide stable support and ensure the sealing effect under high wind pressure, and can also significantly reduce the sliding resistance when opening and closing doors and windows, making operation easier and extending the life of hardware.

[0014] 2. Compared with existing technologies, by setting nylon reinforcing sheets and optional soft magnetic strips, it not only relies on the elasticity of the materials, but also achieves extremely reliable airtight and watertight performance under harsh weather conditions through the dual effects of mechanical support and magnetic adsorption, making it particularly suitable for high-level sealing requirements; the low friction characteristics of the reinforcing sheets reduce the opening and closing force, the honeycomb-hole sponge enhances sound insulation and buffering, and the limiting structure and pre-adhesive double-sided adhesive ensure secure and convenient installation; this design comprehensively improves the energy-saving, sound insulation, wind and water resistance, and long-term reliability of building doors and windows. Attached Figure Description

[0015] Figure 1 This is a three-dimensional view of the overall structure of a sheet-type sealing strip for building doors and windows proposed in this utility model; Figure 2 This utility model proposes a sheet-type sealing strip for building doors and windows. Figure 1 Enlarged view of the structure at point A in the middle; Figure 3 This is a front view of the overall structure of a sheet-type sealing strip for building doors and windows proposed in this utility model.

[0016] Illustration: 1. Limiting piece; 2. Limiting strip; 3. Base piece; 4. Adding piece body; 5. Sealing strip body; 6. Sponge strip; 7. Honeycomb holes; 8. Adhesive strip; 9. Soft magnetic strip; 10. Cavity. Detailed Implementation

[0017] 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 protection scope of the present utility model.

[0018] Reference Figures 1 to 3The building's doors and windows use a sheet-type sealing strip: including a base plate 3, a sealing strip body 5 fixedly connected to the top surface of the base plate 3, a cavity 10 inside the sealing strip body 5, two sponge strips 6 symmetrically fixed inside the cavity 10, honeycomb holes 7 opened on the side of the sponge strips 6, multiple equidistantly distributed sheet bodies 4 symmetrically fixed to the top surface of the base plate 3, the sheet bodies 4 are made of nylon, and an adhesive strip 8 is fixedly connected to the corner of the connection between the sheet bodies 4 and the base plate 3, a limiting strip 2 is fixedly connected to the bottom surface of the base plate 3, a limiting piece 1 is fixedly connected to the bottom surface of the limiting strip 2, the limiting piece 1 and the limiting strip 2 are an integral structure, the base plate 3, the sealing strip body 5 and the limiting strip 2 are all made of rubber, two soft magnetic strips 9 are symmetrically embedded on the bottom surface of the base plate 3, and double-sided adhesive is glued to the bottom surface of the soft magnetic strips 9.

[0019] Through an innovative added-plate structure, the contradiction between high sealing performance and low opening and closing force in traditional sealing strips is effectively resolved. The nylon added plate, with its high rigidity and low coefficient of friction, effectively disperses the closing force to provide stable support, ensuring a good seal under high wind pressure, while significantly reducing the sliding resistance when opening and closing doors and windows, making operation easier and extending the life of hardware. Meanwhile, the sponge strip and its honeycomb structure within the sealing strip enhance sound insulation and cushioning performance. The unique integrated design of the limiting strip and limiting plate greatly improves installation stability and convenience, preventing the sealing strip from loosening during use. The combined design achieves a balance between sealing performance and user experience, while the limiting structure and pre-adhesive double-sided tape ensure secure and convenient installation. When the doors and windows are closed, the soft magnetic strip on the sealing strip attracts the metal suction strip or another soft magnetic strip installed in the corresponding position (such as the door frame / window frame), generating a strong and uniform magnetic force. This magnetic force, combined with the elastic force of the sealing strip itself, ensures a tight seal at the sealing interface. Even under negative wind pressure, the magnetic force can effectively resist the opening of gaps, thereby significantly improving the wind pressure resistance and waterproof penetration of doors and windows, making them particularly suitable for occasions with extreme requirements for sealing performance.

[0020] 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 sheet-type sealing strip for building doors and windows, comprising a base sheet (3), characterized in that: The top surface of the substrate (3) is fixedly connected to the sealing strip body (5), the sealing strip body (5) is provided with a cavity (10), two sponge strips (6) are symmetrically fixed in the cavity (10), and multiple equidistantly distributed pad bodies (4) are symmetrically fixed on the top surface of the substrate (3). Adhesive strips (8) are fixedly connected at the corners of the connection between the pad body (4) and the substrate (3).

2. The sheet-type sealing strip for building doors and windows according to claim 1, characterized in that: The bottom surface of the substrate (3) is fixedly connected to the limiting strip (2), and the bottom surface of the limiting strip (2) is fixedly connected to the limiting piece (1). The limiting piece (1) and the limiting strip (2) are an integral structure.

3. The sheet-type sealing strip for building doors and windows according to claim 2, characterized in that: The substrate (3), the sealing strip body (5), and the limiting strip (2) are all made of rubber.

4. The sheet-type sealing strip for building doors and windows according to claim 1, characterized in that: The substrate (4) is made of nylon.

5. A sheet-type sealing strip for building doors and windows according to claim 1, characterized in that: The side of the sponge strip (6) has honeycomb holes (7).

6. A sheet-type sealing strip for building doors and windows according to claim 1, characterized in that: Two soft magnetic strips (9) are symmetrically embedded on the bottom surface of the film (3).

7. A sheet-type sealing strip for building doors and windows according to claim 6, characterized in that: Double-sided adhesive tape is bonded to the bottom surface of the soft magnetic strip (9).

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