Flame-retardant attached sealing rubber strip
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZHENGHE NEW MATERIALS TECHNOLOGY CO LTD
- Filing Date
- 2025-04-21
- Publication Date
- 2026-05-12
AI Technical Summary
Existing sealing strips have poor flame retardancy, are prone to aging, and affect their service life and resilience.
It adopts a hollow structure and support structure design, including an inner flame-retardant layer, an outer flame-retardant layer, a reinforcing layer and a sealing mechanism. It utilizes ceramicized silicone rubber and expanded graphite materials to provide flame-retardant and heat-insulating effects, combining the elasticity of silicone rubber and the sealing properties of liquid silicone rubber.
It improves the flame retardancy and durability of the sealing strip, enhances its heat insulation performance, maintains the sealing effect, and prevents mechanical damage.
Smart Images

Figure CN224228569U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of sealing strip technology, specifically a flame-retardant adhesive sealing strip. Background Technology
[0002] Sealing strips are elastic strip or rod-shaped materials used on building door and window components, such as the joints between glass and glazing bead, glass and frame / sash, frame and sash, and sash and sash. They prevent leakage or intrusion of internal and external media (rainwater, air, dust, etc.) and prevent or reduce damage caused by mechanical vibration and impact, thereby achieving functions such as sealing, sound insulation, heat insulation and shock absorption.
[0003] For example, utility model patent CN 205840716 U discloses a sealing strip used for sealing curtain walls or windows. The sealing strip includes a strip body, with a water-absorbing and expanding strip on the side of the strip body facing the curtain wall glass or window glass. This utility model improves the sealing performance between the curtain wall glass or window glass and the sealing strip.
[0004] However, in actual use, it was found that the sealing strip has poor flame retardancy and ages too quickly due to prolonged use or exposure to sunlight, which affects its rebound characteristics and thus affects the normal use of doors and windows.
[0005] Therefore, it is necessary to design a flame-retardant adhesive sealing strip that is both robust and has a good flame-retardant effect. Utility Model Content
[0006] The purpose of this invention is to provide a flame-retardant adhesive sealing strip to solve the problems mentioned in the background art.
[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a flame-retardant adhesive sealing strip, comprising a main structure, the main structure including an outer layer, a hollow mechanism provided at the upper end of the inner part of the outer layer, a support mechanism provided at the middle part of the inner part of the main structure, and multiple sets of sealing mechanisms provided at the mounting groove of the main structure; the support mechanism includes a reinforcing layer, and multiple sets of support columns provided on the relatively inner side of the reinforcing layer.
[0008] According to the above technical solution, the hollow structure includes an inner flame-retardant layer, the inner flame-retardant layer has a hollow layer inside, and multiple sets of support strips are fixedly connected to the outer end of the inner flame-retardant layer.
[0009] According to the above technical solution, an outer flame-retardant layer is fixedly connected to the outer end of the supporting rubber strip, and an inner middle layer is fixedly connected to the inside of the outer layer.
[0010] According to the above technical solution, the inner middle layer is fixedly connected to the outer flame-retardant layer and the reinforcing layer, and a support strip is fixedly connected to the lower end of the outer layer.
[0011] According to the above technical solution, the sealing mechanism includes a rubber outer layer, and liquid silicone rubber is fixedly connected inside the rubber outer layer.
[0012] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: In the specific implementation process, the hollow mechanism and the support mechanism can reset and support the main structure. When the outer layer is under pressure, the outer flame-retardant layer and the reinforcement layer can be supported by the support strip and the support column to increase the integrity of the outer layer. At the same time, the ceramic material of the outer layer can provide a good heat insulation effect. Ceramicized silicone rubber can be used for heat insulation and protection to avoid heat conduction. Moreover, ceramic has fire-retardant properties, which can improve the flame-retardant effect of the main structure. Attached Figure Description
[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. In the drawings: 1. Main structure; 101. Outer layer; 102. Inner middle layer; 2. Hollow mechanism; 201. Hollow layer; 202. Inner flame-retardant layer; 203. Supporting rubber strip; 204. Outer flame-retardant layer; 3. Sealing mechanism; 301. Rubber outer layer; 302. Liquid silicone rubber; 4. Support mechanism; 401. Reinforcing layer; 402. Support column; 5. Support strip.
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model;
[0016] Figure 3 This is a partial structural schematic diagram of the present invention. 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] Please see Figure 1-3This utility model provides a technical solution: a flame-retardant adhesive sealing strip, comprising a main structure 1, the main structure 1 including an outer layer 101, a hollow mechanism 2 provided at the upper end of the inner part of the outer layer 101, a support mechanism 4 provided at the middle part of the inner part of the main structure 1, and multiple sets of sealing mechanisms 3 provided at the mounting groove of the main structure 1; the support mechanism 4 includes a reinforcing layer 401, and multiple sets of support columns 402 provided on the relatively inner side of the reinforcing layer 401; the support columns 402 are made of silicone rubber, which has excellent elasticity, high and low temperature resistance, ultraviolet resistance and oxidation resistance, and can quickly return to its original shape after being compressed or stretched, and can drive the reinforcing layer 401 to reset after being squeezed; the outer layer 101 is made of ceramicized silicone rubber, which has excellent high temperature resistance.
[0019] Please see Figure 1-3 The hollow structure 2 includes an inner flame-retardant layer 202, and a hollow layer 201 is provided inside the inner flame-retardant layer 202. Multiple sets of support strips 203 are fixedly connected to the outer end of the inner flame-retardant layer 202. The support strips 203, such as the support column 402, are made of silicone rubber and can drive the outer flame-retardant layer 204 to reset.
[0020] Please see Figure 1-3 An outer flame-retardant layer 204 is fixedly connected to the outer end of the supporting rubber strip 203, and an inner middle layer 102 is fixedly connected to the inside of the outer layer 101. The inner middle layer 102 is composed of expanded graphite, which has good thermal insulation and flame-retardant effects. When the temperature rises to a certain level, the expanded graphite will expand to form a porous carbonaceous structure with low thermal conductivity, which can effectively isolate oxygen and heat conduction. Its expansion behavior at high temperature makes it form a protective carbon layer in the event of a fire, slowing down the spread of flames.
[0021] Please see Figure 1-3 The inner middle layer 102 is fixedly connected to the outer flame-retardant layer 204 and the reinforcing layer 401, and the lower end of the outer layer 101 is fixedly connected to a support strip 5; the support strip 5 is made of soft rubber and can protect the support mechanism 4 inside the main structure 1.
[0022] Please see Figure 1-3 The sealing mechanism 3 includes a rubber outer layer 301, and a liquid silicone rubber 302 is fixedly connected inside the rubber outer layer 301. The liquid silicone rubber 302 has good sealing performance, which can effectively prevent the penetration of moisture and air. It also has high temperature resistance and can work at temperatures up to 200°C, and has good low temperature performance, which can withstand environments as low as -60°C, thereby maintaining the fit between the mounting groove and the mounting location.
[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0024] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A flame-retardant adhesive sealing strip, comprising a main structure (1), characterized in that: The main structure (1) includes an outer layer (101), a hollow mechanism (2) is provided at the upper end of the inner part of the outer layer (101), a support mechanism (4) is provided at the middle part of the inner part of the main structure (1), and multiple sealing mechanisms (3) are provided at the mounting slot of the main structure (1). The support mechanism (4) includes a reinforcing layer (401), and multiple sets of support columns (402) are provided on the inner side of the reinforcing layer (401).
2. The flame-retardant adhesive sealing strip according to claim 1, characterized in that: The hollow structure (2) includes an inner flame-retardant layer (202), and a hollow layer (201) is provided inside the inner flame-retardant layer (202). Multiple sets of support strips (203) are fixedly connected to the outer end of the inner flame-retardant layer (202).
3. The flame-retardant adhesive sealing strip according to claim 1, characterized in that: The outer end of the support strip (203) is fixedly connected to an outer flame-retardant layer (204), and the inner middle layer (102) is fixedly connected to the inside of the outer layer (101).
4. The flame-retardant adhesive sealing strip according to claim 1, characterized in that: The inner middle layer (102) is fixedly connected to the outer flame retardant layer (204) and the reinforcing layer (401), and a support strip (5) is fixedly connected to the lower end of the outer layer (101).
5. The flame-retardant adhesive sealing strip according to claim 1, characterized in that: The sealing mechanism (3) includes a rubber outer layer (301), and liquid silicone rubber (302) is fixedly connected inside the rubber outer layer (301).