A clamping groove type heat insulation strip and a broken bridge aluminum profile thereof

CN224648401UActive Publication Date: 2026-08-18BEIDOBON (NANJING) NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202522521360.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-27
Publication Date
2026-08-18
Estimated Expiration
2035-11-27

AI Technical Summary

Technical Problem

这些问题不仅影响了产品的使用性能和寿命,也限制了其在更广泛场景中的应用

Benefits of technology

卡槽式结构结合多种卡钩设计显著提高了型材之间的连接稳定性,解决了因热胀冷缩导致的松动或脱落问题。其次,模块化设计使得隔热条的更换更加便捷,降低了维护成本并延长了产品的使用寿命。再次,通过密封胶条和隔音棉的配合使用,显著增强了型材之间的密封性能,减少了热量传导风险,提升了整体隔热效果。最后,卡槽式隔热条设计灵活,适配性强,能够满足不同场景下的装配需求,具有广泛的应用前景。

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Abstract

The utility model relates to door and window technical field, concretely relates to a kind of card slot type heat insulation strip and its broken bridge aluminum profile, it includes first profile, second profile, third profile, fourth profile, upper heat insulation strip, lower heat insulation strip, soundproof cotton, sealing rubber strip and the like component.Heat insulation strip adopts card slot type design, main part is equipped with reinforcing rib, surface is coated with weatherable coating, and it is realized convenient replacement by modular structure;Sealing rubber strip is used in conjunction with soundproof cotton, and improves sealing performance and heat insulation effect.The application can significantly improve profile connection stability, enhance the replaceability of heat insulation strip, and optimize the sealing performance, suitable for building door and window field, with the advantages of high efficiency, stability and easy maintenance.
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Description

Technical Field

[0001] This utility model relates to the field of door and window technology, specifically to a slotted thermal break strip and its thermally broken aluminum profile. Background Technology

[0002] With the continuous development of thermal break aluminum profiles and their thermal break strip technology, these materials have been widely used in the field of building doors and windows, becoming an important component in improving the energy-saving performance of buildings. However, existing thermal break aluminum profiles and their thermal break strips still have many problems in practical applications that need to be solved. Currently, thermal break strips on the market usually adopt embedded or plug-in structures. This connection method is not only complicated to install and disassemble, but also prone to loosening or falling off due to thermal expansion and contraction during long-term use, thus affecting the thermal insulation performance and the stability of the overall structure. In addition, existing designs lack flexibility in the connection method between the thermal break strip and the aluminum profile, making it difficult to adapt to the assembly requirements of different scenarios and limiting the applicability of the product.

[0003] Patent CN218824457U discloses a snap-fit ​​type thermally broken aluminum profile, which connects the first frame and the second frame using a thermally broken strip, and then snaps the second frame into a third frame to achieve glass fixation and flexible profile assembly. While this design improves the convenience of glass installation and is applicable to various door and window profiles, the connection between the thermal break strip and the aluminum profile still relies on a traditional snap-fit ​​structure, which may lead to loosening after long-term use. Furthermore, this design does not adequately consider the replaceability of the thermal break strip; once damaged, repair and replacement are difficult, affecting product lifespan and maintenance efficiency.

[0004] Furthermore, existing thermally broken aluminum profiles and their thermal break strips still have significant shortcomings in terms of connection stability, replaceability, and sealing performance. These problems not only affect the product's performance and lifespan but also limit its application in a wider range of scenarios. Therefore, there is an urgent need for a new solution that can overcome these deficiencies to provide a more efficient, stable, and easy-to-maintain design for thermally broken aluminum profiles and their thermal break strips. Summary of the Invention

[0005] The purpose of this utility model is to provide a slotted thermal insulation strip and its thermally broken aluminum profile to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, a slot-type thermal break strip and its thermally broken aluminum profile are provided, including a first profile, a second profile, a third profile, a fourth profile, an upper thermal break strip, a lower thermal break strip, sound insulation cotton, a sealing strip, glass fixing hooks, right-angle fixing hooks, angled hooks, glass fixing nails, and glass buffer pads. The first profile is located on the outermost side, directly contacting the outdoor environment; the fourth profile is located on the innermost side, directly contacting the indoor environment; the second and third profiles are respectively positioned in the middle for support and connection. Further, the first and second profiles are connected by the upper thermal break strip and reinforced by right-angle and angled hooks; the second and third profiles are connected by the lower thermal break strip, also reinforced by right-angle and angled hooks; sound insulation cotton is filled between the third and fourth profiles, and a sealing strip is used for sealing. The glass is fixed between the profiles by the glass fixing hooks and glass fixing nails, and glass buffer pads are placed between the glass and the profiles to reduce vibration and protect the glass.

[0007] In particular, the innovation of this utility model lies in the design and specific implementation of the slot-type thermal insulation strip. The slot-type thermal insulation strip comprises a main body and two symmetrically arranged snap-fit ​​parts. The main body has a rectangular or trapezoidal cross-section, with outwardly extending snap-fit ​​parts on both sides. The ends of the snap-fit ​​parts have barbed structures for engaging with the slots on the profile to form a secure connection. Furthermore, the main body of the slot-type thermal insulation strip has internal reinforcing ribs to improve its tensile and compressive strength. In addition, the surface of the slot-type thermal insulation strip is coated with a weather-resistant coating to enhance its anti-aging properties. This design makes the installation and disassembly of the thermal insulation strip more convenient, while also improving the stability of the connection.

[0008] Furthermore, to improve the replaceability of the thermal insulation strip, this invention adopts a modular design. Specifically, the upper and lower thermal insulation strips are made into independent units, each unit's length matching the profile length, and connected to the profile via a slot structure. When the thermal insulation strip needs replacement, simply use a special tool to remove the old strip from the slot and insert the new one to complete the replacement. This design not only simplifies the maintenance process but also extends the product's lifespan.

[0009] Specifically, this invention significantly enhances the sealing performance between profiles through the combined use of sealing strips and sound-absorbing cotton. The sealing strip is made of a high-polymer elastic material with a wavy or serrated cross-section, effectively filling gaps between profiles and blocking heat conduction. Furthermore, the inner side of the sealing strip has multiple raised structures that interlock with grooves on the profile surface, improving the sealing strip's fixation. The sound-absorbing cotton, with a density of 30-50 kg / m³ and a thickness of 10-20 mm, fills the space between the third and fourth profiles, effectively absorbing external noise and reducing heat transfer. This multi-layered sealing ensures a tight connection between the profiles, reduces the risk of heat conduction, and improves the overall thermal insulation effect.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: The slotted structure combined with multiple hook designs significantly improves the connection stability between profiles, solving the problem of loosening or detachment caused by thermal expansion and contraction. Secondly, the modular design makes replacing the thermal insulation strip more convenient, reducing maintenance costs and extending the product's lifespan. Thirdly, the combined use of sealing strips and sound insulation cotton significantly enhances the sealing performance between profiles, reducing the risk of heat conduction and improving the overall thermal insulation effect. Finally, the slotted thermal insulation strip design is flexible and highly adaptable, meeting the assembly needs of different scenarios and possessing broad application prospects. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] The meanings of the labels in the diagram are as follows: 1. First profile; 2. Second profile; 3. Third profile; 4. Fourth profile; 5. Upper thermal insulation strip; 6. Lower thermal insulation strip; 7. Sound insulation cotton; 8. Sealing strip; 9. Glass fixing hook; 10. Right angle fixing hook; 11. Angled hook; 12. Glass buffer pad. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0014] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” and “described” used herein may also include the plural forms. It should be further understood that the word “comprising” as used in this specification means the presence of the described features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0015] Please see Figure 1 As shown, a slotted thermal break strip and its thermally broken aluminum profile are provided. The overall structure consists of four main parts: the first profile 1 is located on the outermost side, directly contacting the outdoor environment; the fourth profile 4 is located on the innermost side, directly contacting the indoor environment; the second profile 2 and the third profile 3 are respectively positioned in the middle for support and connection. This multi-layered structural design not only improves the overall strength of the profile but also effectively blocks indoor and outdoor heat through the thermal break strip. Specifically, the first profile 1 and the second profile 2 are connected by an upper thermal break strip 5 and reinforced by right-angle fixing hooks 10 and angled hooks 11; the second profile 2 and the third profile 3 are connected by a lower thermal break strip 6, also reinforced by right-angle fixing hooks 10 and angled hooks 11; sound insulation cotton 7 is filled between the third profile 3 and the fourth profile 4, and a sealing strip 8 is used for sealing. The above connection method ensures a tight fit between the profiles, avoiding loosening or detachment due to thermal expansion and contraction.

[0016] Please refer to Figure 1 As shown: The core innovation of this utility model lies in the design and implementation of the slot-type thermal insulation strip. Its structure includes a main body and two symmetrically arranged snap-fit ​​parts. The main body has a rectangular or trapezoidal cross-section, with outwardly extending snap-fit ​​parts on both sides. The ends of the snap-fit ​​parts have barbed structures for engaging with the slots on the profiles to form a secure connection. For example, the snap-fit ​​parts of the upper thermal insulation strip 5 interlock with the slots on the first profile 1 and the second profile 2, and the barbed structure effectively prevents the thermal insulation strip from loosening due to external forces during long-term use. Furthermore, the main body of the upper thermal insulation strip 5 has internal reinforcing ribs to improve its tensile and compressive strength. The number and distribution of the reinforcing ribs are adjusted according to actual needs; typically, a longitudinal reinforcing rib is set in the central area of ​​the main body, and transverse reinforcing ribs are symmetrically arranged on both sides. This design not only enhances the mechanical properties of the thermal insulation strip but also extends its service life. To further enhance the weather resistance of the thermal insulation strip, its surface is coated with a weather-resistant coating made of fluorocarbon resin material, which can resist ultraviolet radiation and chemical corrosion, thereby enhancing the anti-aging performance of the thermal insulation strip.

[0017] To improve the replaceability of the thermal insulation strip, this utility model adopts a modular design. Taking the upper thermal insulation strip 5 and the lower thermal insulation strip 6 as examples, both are made into independent units. The length of each unit matches the length of the profile and is connected to the profile through a slot structure. When the thermal insulation strip needs to be replaced, the operator only needs to use a special tool to remove the old thermal insulation strip from the slot and insert the new thermal insulation strip to complete the replacement operation. The specific operation steps are as follows: S1, use a special tool to pry the barb structure of the thermal insulation strip out of the profile slot; S2, completely remove the old thermal insulation strip and check whether the profile slot is damaged or deformed; S3, align the snap-fit ​​part of the new thermal insulation strip with the profile slot and push it in forcefully until the barb structure is fully embedded in the slot; S4, check whether the connection between the thermal insulation strip and the profile is firm and confirm that there is no looseness. This modular design not only simplifies the maintenance process but also significantly reduces maintenance costs. This invention significantly enhances the sealing performance between profiles through the combined use of a sealing strip 8 and sound-insulating cotton 7. The sealing strip 8 is made of a high-polymer elastic material with a wavy or serrated cross-section, effectively filling gaps between profiles and blocking heat conduction. Specifically, the inner side of the sealing strip 8 has multiple raised structures that interlock with grooves on the profile surface, thereby improving the sealing strip's fixation effect. For example, between the third profile 3 and the fourth profile 4, the raised structures of the sealing strip 8 fit tightly against the grooves on the profile surface, forming an effective sealing barrier. The sound-insulating cotton 7, with a density of 30-50 kg / m³ and a thickness of 10-20 mm, fills the space between the third profile 3 and the fourth profile 4, effectively absorbing external noise and reducing heat transfer. The installation process of sound insulation cotton 7 is as follows: S1, cut the sound insulation cotton 7 to a size that matches the gap between the profiles; S2, evenly fill the gaps between the profiles with sound insulation cotton 7, ensuring its surface is flat and wrinkle-free; S3, use a special tool to compact the sound insulation cotton 7 to improve its sound absorption and heat insulation effects. This multi-layer sealing measure ensures a tight connection between the profiles, reduces the risk of heat conduction, and improves the overall heat insulation effect.

[0018] In practical use, the upper thermal insulation strip 5 and the lower thermal insulation strip 6 are fixed between the profiles via a slot structure. Their main body blocks heat transfer between the interior and exterior, maintaining a stable indoor temperature. Specifically, the main body of the upper thermal insulation strip 5 is made of polyamide material with a low thermal conductivity of less than 0.3 W / (m·K), effectively reducing heat conduction. Simultaneously, the internal reinforcing ribs further enhance the mechanical strength of the thermal insulation strip, making it less prone to deformation or damage during long-term use. The sound insulation principle is as follows: the sound insulation cotton 7 and the sealing strip 8 work together. The sound insulation cotton 7 absorbs external noise, while the sealing strip 8 blocks the sound propagation path, thereby improving indoor quietness. In high-rise buildings, the sound insulation cotton 7 effectively absorbs traffic noise from the street, while the sealing strip 8 blocks wind noise and other high-frequency noise. The fixing principle is as follows: the glass fixing hooks 9, right-angle fixing hooks 10, and angled hooks 11, along with the glass fixing nails, work together to ensure a stable connection between the glass and the profile, preventing loosening and detachment. The glass buffer pad 12 reduces glass vibration through its elastic properties, preventing damage caused by external forces. In strong winds, the glass buffer pad 12 can absorb the vibration energy generated by wind pressure, thus protecting the glass from damage.

[0019] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A card slot type heat insulation strip and its broken bridge aluminum profile, comprising a first profile (1), a second profile (2), a third profile (3), a fourth profile (4), an upper heat insulation strip (5), a lower heat insulation strip (6), sound insulation cotton (7), a sealing rubber strip (8), a glass fixing clasp (9), a right angle fixing clasp (10), an inclined clasp (11) and a glass buffer gasket (12), characterized in that: The first profile (1) and the second profile (2) are connected by an upper heat insulation strip (5) and reinforced by a right-angle fixing hook (10) and an oblique hook (11). The second profile (2) and the third profile (3) are connected by a lower heat insulation strip (6) and reinforced by a right-angle fixing hook (10) and an oblique hook (11). The third profile (3) and the fourth profile (4) are filled with sound insulation cotton (7) and sealed by a sealing strip (8).

2. The slot-type thermal break strip and its thermally broken aluminum profile according to claim 1, characterized in that: The upper heat insulation strip (5) and the lower heat insulation strip (6) each include a main body and two symmetrically arranged snap-fit ​​parts. The cross-section of the main body is rectangular or trapezoidal, and the end of the snap-fit ​​part has a barb structure for engaging with the slot on the profile to form a connection.

3. The slot-type thermal insulation strip and its thermally broken aluminum profile according to claim 2, characterized in that: The main body of the upper insulation strip (5) and the lower insulation strip (6) is provided with reinforcing ribs to improve tensile strength and compressive strength.

4. The slot-type thermal insulation strip and its thermally broken aluminum profile according to claim 3, characterized in that: The sealing strip (8) has a wavy or sawtooth cross section, and its inner side is provided with multiple protruding structures that fit into the grooves on the surface of the profile.

5. The slot-type thermal insulation strip and its thermally broken aluminum profile according to claim 1, characterized in that: The density of the sound insulation cotton (7) is 30 kg / m³ to 50 kg / m³, and the thickness is 10 mm to 20 mm.