Aluminum profile toothless polyamide thermal barrier strip for a type a notch
By designing a polyamide thermal insulation strip for A-type slot aluminum profiles that eliminates the need for toothing, and employing a support component and sealing block structure, the problem of difficult-to-control toothing process is solved, achieving efficient and stable thermal insulation performance and simplifying the processing procedure, thereby improving the thermal insulation and compressive strength of aluminum profiles.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN LANGSHI NEW MATERIALS CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-24
AI Technical Summary
In the existing processing steps of A-type slot aluminum profile thermal insulation strips, the toothing process is difficult to control, resulting in unstable shear force. Furthermore, the traditional processing steps are complex, affecting thermal insulation performance and efficiency.
A non-toothed polyamide thermal insulation strip for A-type slot aluminum profiles is designed, employing a support component and sealing block structure, including aluminum teeth, support rods, support rings, and sealing blocks, which simplifies the processing steps and enhances thermal insulation performance and sealing effect.
By simplifying the processing steps, processing efficiency was improved, equipment footprint was reduced, the bending and compressive strength of the insulation strips was enhanced, the insulation effect and sealing performance were improved, and the impact of errors was reduced.
Smart Images

Figure CN224549930U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of thermal insulation strip technology, specifically a polyamide thermal insulation strip for A-type slot aluminum profiles that does not require tooth cutting. Background Technology
[0002] Aluminum profile thermal break strips are a key connecting material used in thermally broken aluminum alloy doors, windows, and curtain wall structures. They are usually made of high-strength, low-thermal-conductivity engineering plastics such as polyamide or polyurethane. They are embedded between the inner and outer frames of the aluminum profile, dividing the aluminum profile into inner and outer parts, acting as a thermal break, effectively blocking the heat conduction of the metal, and improving the thermal insulation performance of doors and windows.
[0003] The composite processing steps for A-slot thermal insulation aluminum profiles are divided into toothing, strip insertion, and rolling. Currently, the industry average level of dimensional accuracy of aluminum profiles and thermal insulation strips can basically meet the corresponding national standards. Based on this, the main factors affecting the shear force of A-slot thermal insulation aluminum profiles are the toothing and rolling processes. The toothing process is the most difficult to control in terms of shear force due to factors such as the operator's skill level in operating the equipment, the condition of the toothing disc, and the difficulty in measuring toothing data. Therefore, we propose a toothless polyamide thermal insulation strip for A-slot aluminum profiles. Utility Model Content
[0004] The purpose of this invention is to provide a polyamide thermal insulation strip for aluminum profiles with A-type slots that does not require toothing, in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a polyamide heat insulation strip for A-type slot aluminum profiles without tooth cutting, comprising a heat insulation strip body, wherein a support assembly is provided inside the heat insulation strip body, the support assembly comprising: An aluminum tooth, wherein a support rod is fixedly connected to the outer and inner walls of the aluminum tooth; A support ring, which is fixedly connected to the inner wall of the thermal insulation strip body; The first sealing block has an annular groove on its side wall.
[0006] Preferably, the diameter of the aluminum teeth is larger than the diameter of the heat insulation strip body, the aluminum teeth are fixedly connected to the outer wall of the heat insulation strip body, and the aluminum teeth are inserted into the aluminum profile body.
[0007] Preferably, the number of support rings is set in several groups, and the several groups of support rings are equally spaced on the inner wall of the heat insulation strip body, thereby increasing the strength of the heat insulation strip body.
[0008] Preferably, the outer diameter of the aluminum tooth is equal to the inner diameter of the slot on the aluminum profile body, and the heat insulation strip body is inserted into the aluminum profile body.
[0009] Preferably, the sealing block one is inserted into the heat insulation strip body, the sealing block one is made of polyamide cylindrical block, and the sealing block one seals the opening of the heat insulation strip body.
[0010] Preferably, the annular groove on one side wall of the sealing block cooperates with the support ring, the cross-section of the sealing block is convex, and the outer diameter of the wider part of the sealing block is equal to the outer diameter of the aluminum tooth.
[0011] Preferably, a second sealing block is inserted into the inner wall of the aluminum tooth, and the outer diameter of the second sealing block is equal to the inner diameter of the aluminum tooth.
[0012] Compared with the prior art, this utility model provides a polyamide thermal insulation strip for aluminum profiles with A-type slots that does not require toothing, and has the following beneficial effects: 1. This polyamide thermal insulation strip for A-type slot aluminum profiles, which eliminates the need for toothing, utilizes a support assembly. This eliminates the need for a toothing machine during use, reducing equipment footprint compared to large-volume production units using a three-step process. The absence of toothing increases processing efficiency and reduces the impact of toothing errors on the shear force of the composite profile. The hollow design of the thermal insulation strip further blocks heat transfer, enhancing its insulation effect. The support ring provides circumferential support, effectively supporting the inner wall and preventing collapse. The support rod forms a skeleton inside the cavity, enhancing the bending and compressive strength of the aluminum teeth and preventing collapse during extrusion, assembly, or use.
[0013] 2. This polyamide thermal insulation strip for A-type slot aluminum profiles without teeth can achieve a seal by using a second sealing block that fits tightly against the inner wall of the aluminum teeth, blocking air convection and heat conduction, thus improving the overall thermal insulation effect. Whether the thermal insulation strip is cut in the middle or on the aluminum teeth, a secondary seal can be achieved through the first and second sealing blocks, without affecting the thermal insulation performance, thus improving processing flexibility. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main structure of the present utility model; Figure 2 This is a schematic diagram of the thermal insulation strip body structure of this utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the heat insulation strip of this utility model.
[0015] In the figure: 1. Thermal insulation strip body; 2. Support assembly; 201. Aluminum tooth; 203. Support rod; 204. Support ring; 205. Sealing block one; 206. Annular groove; 3. Sealing block two; 4. Aluminum profile body. Detailed Implementation
[0016] like Figures 1-3 As shown, this utility model provides a technical solution: a polyamide heat insulation strip for aluminum profiles without teeth for A-type slots, including a heat insulation strip body 1, and a support component 2 is provided inside the heat insulation strip body 1. The support component 2 includes 201, aluminum teeth 203, support rods 204, support rings 205, sealing blocks 206, and annular grooves.
[0017] In one embodiment of this utility model, aluminum teeth 201 are fixedly connected to the outer wall of the heat insulation strip body 1, and a support rod 203 is fixedly connected to the inner wall of the outer wall of the aluminum teeth 201. The diameter of the aluminum teeth 201 is larger than the diameter of the heat insulation strip body 1. The aluminum teeth 201 are inserted into the aluminum profile body 4. The outer diameter of the aluminum teeth 201 is equal to the inner diameter of the slot on the aluminum profile body 4. The heat insulation strip body 1 is inserted into the aluminum profile body 4.
[0018] The support ring 204 is fixedly connected to the inner wall of the heat insulation strip body 1. Several sets of support rings 204 are provided, and the several sets of support rings 204 are equally spaced on the inner wall of the heat insulation strip body 1. The support rings 204 improve the strength of the heat insulation strip body 1.
[0019] The sealing block 205 is inserted into the heat insulation strip body 1. The side wall of the sealing block 205 has an annular groove 206. The sealing block 205 is made of polyamide cylindrical block. The sealing block 205 seals the opening of the heat insulation strip body 1. The annular groove 206 on the side wall of the sealing block 205 cooperates with the support ring 204. The cross-section of the sealing block 205 is convex. The outer diameter of the wider part of the sealing block 205 is equal to the outer diameter of the aluminum tooth 201.
[0020] The thermal insulation strip body 1 reduces the original three processes of toothing, strip insertion, and rolling in the composite processing of A-type groove thermal insulation aluminum profiles to two processes: strip insertion and rolling. The reduction of processes directly improves the per capita efficiency of composite processing. The thermal insulation strip body 1 does not require a toothing machine during use, which reduces the equipment footprint compared to production units that use the three-step method for large production batches. The absence of toothing processing improves processing efficiency and reduces the impact of toothing process errors on the shear force of composite profiles.
[0021] The thermal insulation strip body 1 is hollow, forming an air cavity. The thermal conductivity of air is much lower than that of plastic and metal, which can further block heat transfer and improve the thermal insulation effect of the thermal insulation strip. The hollow design reduces the amount of material used while ensuring strength, making the thermal insulation strip lighter and easier to assemble and transport as a whole. The support ring 204 provides circumferential support force, which can effectively support the inner wall and prevent collapse, so that the hollow cavity of the thermal insulation strip always maintains a regular shape and ensures its precise fit with components such as aluminum teeth 201.
[0022] The aluminum tooth 201 is hollow, and a support rod 203 is fixedly connected to the inner wall of the aluminum tooth 201. The hollow part forms an air cavity. Air has a very low thermal conductivity, which can further block the heat transfer in the aluminum tooth 201 and help improve the heat insulation effect of the profile. At the same time, the support rod 203 forms a skeleton inside the cavity, which enhances the bending and compressive strength of the aluminum tooth 201 and prevents it from collapsing during extrusion, assembly or use.
[0023] The sealing block 205 is inserted into the opening of the thermal insulation strip body 1 to seal and prevent dust, impurities, and moisture from entering the hollow cavity, thus ensuring thermal insulation performance. The cross-section of the sealing block is convex, and the outer diameter of the wider part is equal to the outer diameter of the aluminum tooth 201, which can precisely match the aluminum profile body 4 to provide positioning, limiting, and stable connection. The annular groove 206 on the side wall of the sealing block engages with the support ring 204 on the inner wall of the thermal insulation strip body 1 to form a snap-fit positioning, ensuring that the sealing block will not loosen or fall off due to vibration or force, preventing air or moisture from seeping in and improving the sealing performance of the thermal insulation strip.
[0024] In addition, a sealing block 2 3 is inserted into the inner wall of the aluminum tooth 201. The outer diameter of the sealing block 2 3 is equal to the inner diameter of the aluminum tooth 201. The sealing block 2 3 fits tightly against the inner wall of the aluminum tooth 201, which can achieve a seal, block air convection and heat conduction, and improve the overall heat insulation effect. Whether it is cut from the middle of the heat insulation strip or cut on the aluminum tooth 201, a secondary seal can be achieved through the sealing block 1 205 and the sealing block 2 3, and the heat insulation performance is not affected, thus improving the processing flexibility.
[0025] In this utility model, when in use, the heat insulation strip body 1 is hollow, and the hollow part forms an air cavity. The thermal conductivity of air is much lower than that of plastic and metal, which can further block heat transfer and improve the heat insulation effect of the heat insulation strip. The hollow design reduces the amount of material used while ensuring strength. The support ring 204 provides circumferential support force, which can effectively support the inner wall and prevent collapse. The sealing block 205 is inserted into the opening of the heat insulation strip body 1 to play a sealing and sealing role, preventing dust, impurities and moisture from entering the hollow cavity and ensuring heat insulation performance.
[0026] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A polyamide heat insulation strip for A-type slot aluminum profiles without tooth cutting, comprising a heat insulation strip body (1), characterized in that: The heat insulation strip body (1) is provided with a support component (2) inside, and the support component (2) includes: Aluminum tooth (201), wherein a support rod (203) is fixedly connected to the outer wall and inner wall of the aluminum tooth (201); Support ring (204), the support ring (204) is fixedly connected to the inner wall of the heat insulation strip body (1); The sealing block 1 (205) has an annular groove (206) on its side wall.
2. The polyamide thermal insulation strip for A-type slot aluminum profiles without tooth cutting according to claim 1, characterized in that: The diameter of the aluminum tooth (201) is larger than the diameter of the heat insulation strip body (1), and the aluminum tooth (201) is fixedly connected to the outer wall of the heat insulation strip body (1).
3. The polyamide thermal insulation strip for A-type slot aluminum profiles without tooth cutting according to claim 1, characterized in that: The number of the support rings (204) is set in several groups, and the several groups of support rings (204) are equally spaced on the inner wall of the heat insulation strip body (1).
4. The polyamide thermal insulation strip for A-type slot aluminum profiles without tooth cutting according to claim 1, characterized in that: The outer diameter of the aluminum tooth (201) is equal to the inner diameter of the slot on the aluminum profile body (4), and the heat insulation strip body (1) is inserted into the aluminum profile body (4).
5. A polyamide heat insulation strip for A-type slot aluminum profiles without tooth cutting, as described in claim 1, characterized in that: The sealing block (205) is inserted into the heat insulation strip body (1), and the sealing block (205) is made of polyamide cylindrical block.
6. A polyamide heat insulation strip for A-type slot aluminum profiles without tooth cutting, as described in claim 1, characterized in that: The annular groove (206) on the side wall of the sealing block (205) cooperates with the support ring (204). The cross-section of the sealing block (205) is convex. The outer diameter of the wider part of the sealing block (205) is equal to the outer diameter of the aluminum tooth (201).
7. A polyamide thermal insulation strip for A-type slot aluminum profiles without tooth cutting, as described in claim 1, characterized in that: The inner wall of the aluminum tooth (201) is fitted with a sealing block two (3), and the outer diameter of the sealing block two (3) is equal to the inner diameter of the aluminum tooth (201).