A composite sealing strip for a vacuum glass retrofit window
By introducing an insulating and protective layer and a thermal insulation layer into the composite sealing strip of the vacuum glass retrofit window, the problem of easy degradation of sealant is solved, achieving better sealing and durability, and improving the thermal insulation and sound insulation performance of the window.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN YEHAO CURTAIN WALL DECORATION ENG CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-05-26
AI Technical Summary
The composite sealing strips of existing vacuum glass retrofitted windows are susceptible to corrosion from ultraviolet rays and the external environment during long-term use, leading to sealant degradation, cracking, and wear, which affects the sealing effect and service life.
A composite sealing strip comprising a skeleton, a sealing rubber layer, an insulating protective layer, and a thermal insulation layer was designed. The insulating protective layer is quickly assembled through splicing grooves and snap-fit blocks, and a rubber sealing gasket and a thermal insulation layer are provided on the inner side to enhance sealing and protective effects.
It effectively blocks ultraviolet rays and external erosion, slows down the aging of the sealing rubber layer, improves the sealing effect and thermal insulation and sound insulation performance, facilitates the disassembly and maintenance of the isolation protective layer, and extends its service life.
Smart Images

Figure CN224282392U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vacuum glass technology, specifically a composite sealing strip for a vacuum glass modified window. Background Technology
[0002] Vacuum glass is a high-performance, energy-saving glass made of two layers of flat glass sealed at the edges with low-melting-point glass powder, with a vacuum evacuated between them and embedded with micron-level support materials to form a "vacuum layer." Window retrofitting refers to replacing the ordinary glass in existing windows with vacuum glass to improve their thermal insulation, sound insulation, and condensation prevention performance. Composite sealing strips are key components in vacuum glass retrofitting windows, used to fill the gap between the glass and the window frame. They are made of various materials (such as rubber + metal frame, silicone + fiber reinforcement layer, etc.) and achieve sealing, shock absorption, and cushioning functions through elastic compression. Their core function is to prevent vacuum layer leakage, external moisture intrusion, and to improve the overall airtightness of the window.
[0003] When using existing composite sealing strips for vacuum glass retrofitted windows, the sealant used for sealing is directly exposed to the outside. The rubber material is prone to degradation under long-term contact with external air and ultraviolet radiation, resulting in surface cracking, hardening or powdering, loss of elasticity, and the outer rubber layer may be scratched by the window frame edge during installation or worn by cleaning tools during later maintenance, thus affecting the sealing effect and service life. Utility Model Content
[0004] The purpose of this invention is to provide a composite sealing strip for a vacuum glass retrofit window to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A composite sealing strip for a vacuum glass retrofit window includes a window body and a composite sealing strip. The window body is disposed on both sides of the composite sealing strip. The composite sealing strip includes a frame, a sealing rubber layer, and an insulating protective layer. Inner adhesive layers are disposed on both sides of the frame. A desiccant is filled in the internal cavity of the frame. The sealing rubber layer is disposed around the outside of the frame, and the insulating protective layer is disposed around the outside of the sealing rubber layer.
[0007] Preferably, the insulating protective layer includes a first frame and a second frame, both of which are provided with splicing grooves. The splicing groove of the first frame is provided with a snap-fit groove, and the splicing groove of the second frame is provided with a snap-fit block that can cooperate with the splicing groove.
[0008] Preferably, the insulating protective layer is provided with rubber sealing gaskets on both sides that come into contact with the window to improve its insulating and protective effect.
[0009] Preferably, the inner side of the insulating protective layer is provided with a heat insulation layer for isolating external temperature.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] 1. This utility model, by installing an insulating protective layer, can block external erosion such as ultraviolet rays and sand and dust. The heat insulation layer reduces the impact of temperature on the sealing rubber layer, effectively delaying the degradation, cracking, hardening and other aging phenomena of the sealing rubber layer. The design of the rubber sealing gasket allows the insulating protective layer to form a secondary seal at the contact point with the window frame, ensuring the sealing effect of the vacuum glass, improving the heat insulation and sound insulation performance of the window, and strengthening the protection of the sealing rubber layer. The insulating protective layer adopts a splicing structure, which can be quickly assembled through splicing grooves, snap grooves and snap blocks, making it easy to install. During later maintenance, the damaged insulating protective layer can be disassembled and replaced separately without replacing the entire pressure strip. The operation is simple and convenient, saving manpower and time costs. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0013] Figure 2 This is a schematic diagram of the composite sealing strip structure of this utility model;
[0014] Figure 3 This is a schematic diagram of the skeleton structure of this utility model;
[0015] Figure 4 This is a schematic diagram of the splicing groove structure of this utility model.
[0016] In the diagram: 1. Window; 2. Frame; 3. Inner adhesive layer; 4. Desiccant; 5. Sealing rubber layer; 6. Isolation and protection layer; 7. Rubber sealing gasket; 8. First frame; 9. Second frame; 10. Splicing groove; 11. Snap-fit groove; 12. Snap-fit block; 13. Thermal insulation layer. 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] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.
[0020] Please see Figure 1-4 A composite sealing strip for a vacuum glass retrofit window includes a window body 1 and a composite sealing strip. The window body 1 is disposed on both sides of the composite sealing strip. The composite sealing strip includes a frame 2, a sealing rubber layer 5, and an insulating protective layer 6. Inner rubber layers 3 are disposed on both sides of the frame 2. A desiccant 4 is filled in the internal cavity of the frame 2. The sealing rubber layer 5 is disposed around the outside of the frame 2, and the insulating protective layer 6 is disposed around the outside of the sealing rubber layer 5. The frame 2 provides rigid support to ensure that the strip maintains its shape stability under long-term compression and prevents damage caused by opening and closing of the window body 1 or wind pressure. The inner rubber layer 3 deforms and fills the gap between the skeleton 2 and the sealing rubber layer 5, enhancing the interlayer adhesion and preventing delamination. At the same time, it buffers the thermal expansion difference between the skeleton 2 and the rubber layer. The desiccant 4 absorbs trace amounts of moisture inside the pressure strip and at the edge of the vacuum layer, maintaining a low humidity environment inside the vacuum glass and preventing condensation on the inner surface of the glass. The sealing rubber layer 5 fills the gap between the glass and the window frame through elastic deformation, achieving airtight and watertight functions. The protective layer 6 blocks ultraviolet rays, rain, snow, and dust from eroding the sealing rubber layer 5, effectively delaying the degradation, cracking, hardening, and other aging phenomena of the sealing rubber layer 5.
[0021] Please see Figure 4The isolation and protective layer 6 includes a first frame 8 and a second frame 9. Both the first frame 8 and the second frame 9 are provided with splicing slots 10. The splicing slot 10 of the first frame 8 is provided with a snap-fit slot 11, and the splicing slot 10 of the second frame 9 is provided with a snap-fit block 12 that can cooperate with the splicing slot 10. The isolation and protective layer 6, composed of the first frame 8 and the second frame 9, can be quickly assembled through the splicing slot 10, the snap-fit slot 11 and the snap-fit block 12, which facilitates the disassembly and assembly of the isolation and protective layer 6 and makes it convenient for users to replace it.
[0022] Please see Figure 2 Both sides of the insulating protective layer 6 that come into contact with the window 1 are provided with rubber sealing gaskets 7 to improve its insulating and protective effect. The rubber sealing gaskets 7 form a secondary seal at the contact point between the insulating protective layer 6 and the window 1, filling micro gaps, improving airtightness, and strengthening the insulating and protective effect of the insulating protective layer 6 on the sealing rubber layer 5.
[0023] Please see Figure 4 The inner side of the protective layer 6 is provided with a heat insulation layer 13 for isolating external temperature. The heat insulation layer 13 is made of materials with low thermal conductivity such as aerogel felt, which reduces heat transfer at the edge of the window frame, prevents the sealing rubber layer 5 from directly contacting high or low temperature surfaces, and delays aging.
[0024] Working principle: The frame 2 acts as a rigid support core, maintaining the stability of the pressure strip shape under the opening and closing of the window 1 and the action of wind pressure, providing a reliable support for other components. The inner adhesive layer 3 fills the gap between the frame 2 and the sealing rubber layer 5, enhancing their adhesion and buffering the stress caused by the difference in thermal expansion coefficients to prevent delamination. The desiccant 4 is placed inside the cavity of the frame 2, continuously absorbing trace amounts of moisture inside the pressure strip and at the edge of the vacuum layer, ensuring a low humidity environment inside the vacuum glass and preventing condensation on the inner surface of the glass from affecting light transmission and usability. The sealing rubber layer 5, through its own elastic deformation, tightly fills the gap between the glass and the window frame, achieving airtightness and watertightness, effectively blocking air... The air and moisture penetration isolation protective layer 6 is quickly assembled from the first frame 8 and the second frame 9 through splicing groove 10, snap-fit groove 11 and snap-fit block 12. It surrounds the outside of the sealing rubber layer 5, blocking the corrosion of the sealing rubber layer 5 by ultraviolet rays, rain, snow and sand. The inner heat insulation layer 13 uses low thermal conductivity materials such as aerogel felt, which greatly reduces the heat transfer at the edge of the window frame, prevents the sealing rubber layer 5 from directly contacting the extreme temperature surface, and slows down the aging rate. At the same time, the rubber sealing gaskets 7 on both sides of the contact between the isolation protective layer 6 and the window body 1 form a secondary seal at the contact point, fills the micro gaps, further improves the airtightness, and strengthens the protection of the sealing rubber layer 5.
[0025] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A composite sealing strip for a vacuum glass retrofit window, comprising a window body (1) and a composite sealing strip, wherein the window body (1) is disposed on both sides of the composite sealing strip, characterized in that: The composite sealing strip includes a skeleton (2), a sealing rubber layer (5) and an insulating protective layer (6). The skeleton (2) has inner rubber layers (3) on both sides. The internal cavity of the skeleton (2) is filled with a desiccant (4). The sealing rubber layer (5) is arranged around the outside of the skeleton (2), and the insulating protective layer (6) is arranged around the outside of the sealing rubber layer (5).
2. The composite sealing strip for a vacuum glass retrofit window according to claim 1, characterized in that: The isolation and protective layer (6) includes a first frame (8) and a second frame (9). Both the first frame (8) and the second frame (9) are provided with splicing slots (10). The splicing slot (10) of the first frame (8) is provided with a snap-fit slot (11), and the splicing slot (10) of the second frame (9) is provided with a snap-fit block (12) that can cooperate with the splicing slot (10).
3. The composite sealing strip for a vacuum glass retrofit window according to claim 2, characterized in that: The insulating protective layer (6) is provided with rubber sealing gaskets (7) on both sides that come into contact with the window (1) to improve its insulating protective effect.
4. The composite sealing strip for a vacuum glass retrofit window according to claim 2, characterized in that: The inner side of the insulating protective layer (6) is provided with a heat insulation layer (13) for isolating external temperature.