Combined profile for doors and windows

Abstract

The utility model relates to the technical field of door and window structures, in particular to a combined section bar for doors and windows, which comprises at least three section bar units, and each section bar unit comprises an aluminum alloy section bar unit, a plastic steel section bar unit and a heat insulation strip. The combined profile comprises at least one aluminum alloy profile unit, at least one plastic steel profile unit and at most one heat insulation strip. The profile units are sequentially connected to form a linear structure or connected end to end to form an annular structure. Any two adjacent profile units are made of different materials. By means of the combined profile, the problem of high cost can be effectively solved, and the heat insulation and sound insulation effects can be improved.

Description

Technical Field

[0001] This utility model relates to the field of door and window structure technology, and in particular to a composite profile for doors and windows. Background Technology

[0002] Doors and windows are openings in the building's exterior envelope. They are crucial functional components that protect against wind, rain, dust, and insects, ensuring the building's physical properties such as heat, sound, and light. They also serve as both the building's exterior facade and interior environment, directly impacting the building's safety, comfort, energy efficiency, and the improvement of people's living standards. Doors and windows must possess multiple functions, including lighting, ventilation, weather protection, heat insulation, sound insulation, dust prevention, fire prevention, and security, to provide a safe and comfortable indoor living environment. Furthermore, as part of the building's exterior walls and interior decoration, their structural form, material texture, and surface color play a vital functional and decorative role in the aesthetic harmony of the building's interior and exterior.

[0003] Existing aluminum alloy doors and windows include ordinary aluminum alloy doors and windows and aluminum-plastic composite doors and windows. Aluminum-plastic composite doors and windows, also known as thermally broken aluminum doors and windows, are a new type of door and window following ordinary aluminum alloy doors and windows and uPVC doors and windows. Thermally broken aluminum doors and windows use thermally broken aluminum profiles and double-glazed windows, are aesthetically pleasing, and have energy-saving, sound insulation, noise reduction, dustproof, and waterproof functions. However, existing ordinary aluminum alloy doors and windows and aluminum-plastic composite doors and windows have problems such as overly simple structure, poor thermal insulation effect, and lack of aesthetic appeal.

[0004] In the prior art, a Chinese utility model patent document with publication number CN212562932U and publication date of March 23, 2020 has been proposed to solve the above-mentioned technical problems. The technical solution disclosed in the patent document is as follows: a plastic steel decorative aluminum alloy energy-saving door and window, including an aluminum alloy door and window body, a connector, a plastic steel decorative part and glass; the connection between the connector and the aluminum alloy door and window body is screwed, riveted or bonded, and the connection between the connector and the plastic steel decorative part is snap-fitted, and the plastic steel decorative part covers the indoor surface of the aluminum alloy door and window body.

[0005] The above technical solutions will have the following problems in actual use: Although the use of PVC decorative parts indoors can improve the thermal insulation performance of doors and windows, most structures still use thermal break strips between two aluminum alloy profiles. The number of thermal break strips used is relatively large, and the overall thermal insulation and sound insulation effect of the structure still needs to be improved, and the cost is high. Summary of the Invention

[0006] To address the aforementioned technical problems, this utility model proposes a composite profile for doors and windows, which can effectively solve the problem of high cost and improve heat insulation and sound insulation effects.

[0007] This utility model is achieved by adopting the following technical solution:

[0008] A composite profile for doors and windows includes at least three profile units, each profile unit including an aluminum alloy profile unit, a PVC profile unit, and a thermal break strip; the composite profile includes at least one aluminum alloy profile unit, at least one PVC profile unit, and at most one thermal break strip; the profile units are connected sequentially to form a linear structure or connected end-to-end to form a ring structure; any two adjacent profile units are made of different materials.

[0009] All the profile units are multi-chamber structures.

[0010] The profile unit closest to the indoor side is a PVC profile unit, and the profile unit closest to the outdoor side is an aluminum alloy profile unit.

[0011] When the composite profile has a linear structure, from indoor to outdoor direction, it includes a first PVC profile unit, a first aluminum alloy profile unit, a first thermal insulation strip, and a second aluminum alloy profile unit connected in sequence.

[0012] When the composite profile is in the form of a ring structure, it includes a second plastic steel profile unit, a third aluminum alloy profile unit, a third plastic steel profile unit, a fourth aluminum alloy profile unit, a second thermal insulation strip, and a fifth aluminum alloy profile unit connected in sequence, and the above profile units together enclose a first cavity.

[0013] The two ends of the third aluminum alloy profile unit are connected to the second and third plastic steel profile units respectively through the cooperation of slots and blocks; the two ends of the second heat insulation strip are connected to the fourth and fifth aluminum alloy profile units respectively through the cooperation of slots and blocks.

[0014] The second plastic steel profile unit has a positioning block on its outer wall, and the fifth aluminum alloy profile unit has a positioning groove on its outer wall that matches the positioning block.

[0015] A third cavity is formed between the fifth aluminum alloy profile unit and the second plastic steel profile unit; a second cavity is formed between the fourth aluminum alloy profile unit and the third plastic steel profile unit.

[0016] It also includes a fourth plastic steel profile unit, which is connected to the fourth aluminum alloy profile unit through the mutual cooperation of slots and blocks.

[0017] An EPDM rubber strip is also provided between the third aluminum alloy profile unit and the second thermal insulation strip.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. In this utility model, the above-described structural design allows the combined profiles to be connected in a linear or ring-like manner, adapting to the structural requirements of different doors and windows. Furthermore, this solution ensures that any two directly contacting profile units use different materials, achieving material complementarity and improving the overall structural stability. Simultaneously, direct contact between the same materials reduces heat transfer and effectively improves thermal insulation. Especially when the combined profiles are connected in a ring-like manner, a bridge-within-a-bridge silent energy-saving ring can be formed, resulting in even better thermal insulation and soundproofing effects, and a more significant energy-saving and consumption-reducing effect.

[0020] Furthermore, this utility model has at most one heat insulation strip, which can effectively reduce production costs and subsequent maintenance costs while ensuring performance.

[0021] 2. The profile units all feature a multi-chamber structure, which reduces heat transfer through the material itself. The air within the chambers further reduces heat transfer, significantly improving the material's insulation performance. This structural design also allows for more complex and dispersed connections between different materials, enhancing thermal insulation. Furthermore, the multi-chamber structure makes each profile unit more stable and rigid, significantly increasing its load-bearing capacity without adding material, and ensuring more stable cooperation between the profile units.

[0022] 3. The innermost layer is a PVC profile unit, and the outermost layer is an aluminum alloy profile unit. This design fully leverages the advantages of both materials: the aluminum alloy profile unit closer to the outside has excellent weather resistance and strength, capable of withstanding environmental influences such as wind and rain; the PVC profile unit closer to the inside provides good thermal insulation, helping to maintain stable indoor temperatures and enhancing aesthetics. This design achieves complementarity between the two materials, further improving the thermal insulation effect.

[0023] 4. When the composite profiles have a linear structure, multiple thermal insulation barriers are formed from the interior to the exterior. These include: reducing heat transfer efficiency due to the different materials and thermal conductivity of the two directly connected profile units; the first thermal insulation strip blocking the heat transfer path; and multiple air gaps reducing heat transfer. Through the cooperation of these multiple thermal insulation barriers, the thermal insulation, sound insulation, and energy-saving performance of doors and windows can be significantly improved. This multi-layered design also increases the deformation resistance of the composite profiles, extending the service life of doors and windows.

[0024] 5. When the composite profile is in the shape of a ring, it can form a bridge-in-bridge silent energy-saving ring. Compared with linear composite profiles, it has more blocking layers and more complete blocking angles, resulting in better heat insulation and sound insulation effects, and more obvious energy saving and consumption reduction effects.

[0025] 6. The third aluminum alloy profile unit located in the center and the two ends of the second thermal insulation strip are connected to the adjacent profile units through slots and blocks, respectively, making the connection more stable, the stress on the entire composite profile more even, and the positioning during installation easier and faster.

[0026] 7. The design of the second and third cavities facilitates further enhancement of thermal insulation and sound insulation effects, improves the stress uniformity of the entire composite profile, and enhances the structural stability of the entire composite profile.

[0027] 8. The cooperation between the positioning block and the positioning groove facilitates the improvement of the stability of the connection between the second plastic steel profile unit and the fifth aluminum alloy profile unit. It also facilitates the placement of the fifth aluminum alloy profile unit on the outside of the second plastic steel profile unit, making full use of the material properties of aluminum alloy and improving its resistance to external environmental influences.

[0028] 9. The inclusion of the fourth PVC profile unit facilitates further strengthening of the structural stability of the composite profile, while also making full use of the material properties of PVC to improve insulation and aesthetics.

[0029] 10. An EPDM rubber strip is also provided between the third aluminum alloy profile unit and the second thermal insulation strip, which can further improve the sealing, sound insulation and heat insulation effect. Attached Figure Description

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments, wherein:

[0031] Figure 1 This is a schematic diagram of the present invention when it has a ring structure;

[0032] Figure 2 This is a schematic diagram of the present invention when it has a linear structure;

[0033] Figure 3 This is a schematic diagram of the combined profile used in this utility model for a casement window;

[0034] Marked in the image:

[0035] 1. First PVC profile unit; 2. First aluminum alloy profile unit; 3. First thermal insulation strip; 4. Second aluminum alloy profile unit; 5. Second PVC profile unit; 6. Third aluminum alloy profile unit; 7. Third PVC profile unit; 8. Fourth aluminum alloy profile unit; 9. Second thermal insulation strip; 10. Fifth aluminum alloy profile unit; 11. First cavity; 12. Second cavity; 13. Third cavity; 14. Positioning block; 15. Positioning groove; 16. Fourth PVC profile unit; 17. EPDM rubber strip; 18. Bridge-in-bridge silent energy-saving ring. Detailed Implementation

[0036] Example 1

[0037] As one embodiment of this utility model, it includes a composite profile for doors and windows, comprising three profile units connected sequentially to form a linear structure. Each profile unit includes an aluminum alloy profile unit, a PVC profile unit, and a thermal break strip. More specifically, in this embodiment, from the indoor to the outdoor direction, the composite profile includes a PVC profile unit, a thermal break strip, and an aluminum alloy profile unit connected sequentially.

[0038] Example 2

[0039] In a preferred embodiment of this utility model, the utility model includes a composite profile for doors and windows, comprising three profile units connected sequentially and forming a ring structure. Specifically, in this embodiment, the composite profile includes an aluminum alloy profile unit, a thermal break strip, and a PVC profile unit connected sequentially. Each of the aluminum alloy profile unit, PVC profile unit, and thermal break strip has a multi-chamber structure. The bottom of the inner end of the thermal break strip is connected to the PVC profile unit, and the bottom of the outer end of the thermal break strip is connected to the aluminum alloy profile unit. The aluminum alloy profile unit and the PVC profile unit are connected by a slot and a locking block. Through this structure, a chamber is formed between the PVC profile unit, the thermal break strip, and the aluminum alloy profile unit.

[0040] Example 3

[0041] As another preferred embodiment of this utility model, this utility model includes a composite profile for doors and windows, as shown in the attached specification. Figure 2 The system comprises four profile units, which are connected sequentially to form a linear structure. Each profile unit includes an aluminum alloy profile unit, a PVC profile unit, and a thermal break strip. More specifically, in this embodiment, from indoors to outdoors, the combined profile includes a first PVC profile unit 1, a first aluminum alloy profile unit 2, a first thermal break strip 3, and a second aluminum alloy profile unit 4, connected sequentially.

[0042] Each profile unit has a multi-chamber structure, and adjacent profile units are connected by a slot and a block.

[0043] Example 4

[0044] In another preferred embodiment of this utility model, the utility model includes a composite profile for doors and windows, comprising four profile units connected sequentially and forming a ring structure by connecting end to end. Specifically, in this embodiment, from the outside to the inside, from top to bottom, the composite profile includes an aluminum alloy profile unit I, a PVC profile unit I, an alloy profile unit II, and a PVC profile unit II connected sequentially.

[0045] Furthermore, in order to make full use of the characteristics of different materials and improve the resistance to external environmental influences, the outer wall of the aluminum alloy profile unit I is located outside the plastic steel profile unit II, and the outer wall of the aluminum alloy profile unit I extends downward and connects with the outer wall of the plastic steel profile unit II.

[0046] Preferably, the aluminum alloy profile unit I, the plastic steel profile unit I, the aluminum alloy profile unit II, and the plastic steel profile unit II can be enclosed to form a cavity similar to a square.

[0047] Example 5

[0048] As another preferred embodiment of this utility model, this utility model includes a composite profile for doors and windows, comprising six profile units from top to bottom and from outside to inside. The profile unit includes an aluminum alloy profile unit I, a thermal break strip, an aluminum alloy profile unit II, a PVC profile unit I, an aluminum alloy profile unit III, and a PVC profile unit II connected in sequence.

[0049] Preferably, the PVC profile unit I is connected upwards to and covers the inner wall of the aluminum alloy profile unit II, so that the material facing indoors is PVC. The aluminum alloy profile unit I can be connected downwards to and covers the outer wall of the PVC profile unit II, so that the material facing outdoors is aluminum alloy.

[0050] Example 6

[0051] As another preferred embodiment of this utility model, this utility model includes a composite profile for doors and windows, as described in the attached specification. Figure 1 From top to bottom, from outdoors to indoors, it includes the second PVC profile unit 5, the third aluminum alloy profile unit 6, the third PVC profile unit 7, the fourth aluminum alloy profile unit 8, the second thermal insulation strip 9, and the fifth aluminum alloy profile unit 10, which are connected in sequence. All of the above profile units have a multi-chamber structure.

[0052] The outer end of the third aluminum alloy profile unit 6 is connected to the second plastic steel profile unit 5 through the cooperation of a slot and a block, and the inner end of the third aluminum alloy profile unit 6 is connected to the third plastic steel profile unit 7 through the cooperation of a slot and a block. The outer end of the second heat insulation strip 9 is connected to the fifth aluminum alloy profile unit 10 through the cooperation of a slot and a block, and the inner end of the second heat insulation strip 9 is connected to the fourth aluminum alloy profile unit 8 through the cooperation of a slot and a block.

[0053] Furthermore, a positioning block 14 is provided on the outer wall of the second plastic steel profile unit 5, and a positioning groove 15 for matching the positioning block 14 is formed on the inner wall of the outer wall of the fifth aluminum alloy profile unit 10. A first support column is provided at the bottom of the second plastic steel profile unit 5, and a first support member is provided at the top of the fifth aluminum alloy profile unit 10 to cooperate with the first support column. Through the cooperation of the first support column and the first support member, and through connecting parts such as screws, the second plastic steel profile unit 5 and the fifth aluminum alloy profile unit 10 can be connected, thereby forming a third cavity 13 between the fifth aluminum alloy profile unit 10 and the second plastic steel profile unit 5.

[0054] The bottom of the third plastic steel profile unit 7 is provided with a second support column, and the top of the fourth aluminum alloy profile unit 8 is provided with a second support member that matches the second support column. Through the cooperation of the second support column and the second support member, and through connectors, the third plastic steel profile unit 7 and the fourth aluminum alloy profile unit 8 can be connected, thereby forming a first cavity 11 between the second plastic steel profile unit 5, the third aluminum alloy profile unit 6, the third plastic steel profile unit 7, the fourth aluminum alloy profile unit 8, the second heat insulation strip 9, and the fifth aluminum alloy profile unit 10.

[0055] Furthermore, an EPDM rubber strip 17 is provided between the third aluminum alloy profile unit 6 and the second thermal insulation strip 9. Through the cooperation of the EPDM rubber strip 17 with the third aluminum alloy profile unit 6 and the second thermal insulation strip 9, the first cavity 11 can be further divided into three cavities, so that the EPDM rubber strip 17 can further improve the thermal insulation and sound insulation effect while providing a sealing function.

[0056] Preferably, this embodiment also includes a fourth PVC profile unit 16, which is connected to the fourth aluminum alloy profile unit 8 through the mutual cooperation of a slot and a locking block. Furthermore, the bottom end of the third PVC profile unit 7 can also be connected to the top end of the fourth PVC profile unit 16 via a connector, which not only makes the overall structural connection more stable but also allows the locking block of the fourth aluminum alloy profile unit 8 to be better pressed into the slot at the top end of the fourth PVC profile unit 16. The fourth aluminum alloy profile unit 8 and the third PVC profile unit 7 together form a second cavity 12.

[0057] The above structure enables the implementation of a bridge-in-bridge silent energy-saving ring 18, which improves heat insulation and sound insulation effects from multiple blocking levels and angles.

[0058] Example 7

[0059] As another preferred embodiment of this utility model, please refer to the appendix to the specification. Figure 3This utility model can use the combined profile from Embodiment 6 for casement windows. By cooperating with other components of the casement window, such as the window sash and pressure-equalizing strips, a complete casement window structure with good sound and heat insulation effects is formed.

[0060] In summary, any other corresponding modifications made by those skilled in the art based on the technical solution and concept of this utility model without creative mental effort after reading this utility model document are all within the scope of protection of this utility model.

Claims

1. A composite profile for doors and windows, characterized in that: The combined profile includes at least one aluminum alloy profile unit, at least one plastic steel profile unit, and at most one thermal insulation strip; the profile units are connected in sequence to form a linear structure or are connected head to tail to form a ring-shaped structure; any two adjacent profile units are made of different materials.

2. A composite profile for doors and windows according to claim 1, characterized in that: The profile units are all multi-chamber structures.

3. A composite profile for doors and windows according to claim 2, characterized in that: The profile unit closest to the indoor side is a plastic steel profile unit, and the profile unit closest to the outdoor side is an aluminum alloy profile unit.

4. A composite profile for doors and windows according to claim 2, characterized in that: When the combined profile is in a linear structure, from the indoor side to the outdoor side, it includes a first plastic steel profile unit (1), a first aluminum alloy profile unit (2), a first thermal insulation strip (3), and a second aluminum alloy profile unit (4) connected in sequence.

5. A composite profile for doors and windows according to claim 2, characterized in that: When the combined profile is in a ring-shaped structure, it includes a second plastic steel profile unit (5), a third aluminum alloy profile unit (6), a third plastic steel profile unit (7), a fourth aluminum alloy profile unit (8), a second thermal insulation strip (9), and a fifth aluminum alloy profile unit (10) connected in sequence, and the profile units collectively enclose a first cavity (11).

6. A composite profile for doors and windows according to claim 5, characterized in that: The third aluminum alloy profile unit (6) is connected to the second plastic steel profile unit (5) and the third plastic steel profile unit (7) at both ends through the mutual cooperation of a clamping groove and a clamping block; the second thermal insulation strip (9) is connected to the fourth aluminum alloy profile unit (8) and the fifth aluminum alloy profile unit (10) at both ends through the mutual cooperation of a clamping groove and a clamping block.

7. A composite profile for doors and windows according to claim 6, characterized in that: The outer side wall of the second plastic steel profile unit (5) is provided with a positioning block (14), and the outer side wall of the fifth aluminum alloy profile unit (10) is provided with a positioning groove (15) matched with the positioning block (14).

8. A composite profile for doors and windows according to claim 5 or 7, characterized in that: The fifth aluminum alloy profile unit (10) and the second plastic steel profile unit (5) enclose a third cavity (13) therebetween; the fourth aluminum alloy profile unit (8) and the third plastic steel profile unit (7) enclose a second cavity (12) therebetween.

9. A composite profile for doors and windows according to claim 7, characterized in that: A fourth plastic steel profile unit (16) is further included, and the fourth plastic steel profile unit (16) and the fourth aluminum alloy profile unit (8) are connected through the mutual cooperation of a clamping groove and a clamping block.

10. A composite profile for doors and windows according to claim 5, characterized in that: A three-element ethylene-propylene rubber strip (17) is further provided between the third aluminum alloy profile unit (6) and the second thermal insulation strip (9).

Images