Aluminum plastic co-extrusion door and window
By using a fixed ring and bolt connection structure, a shock absorption mechanism, and a vacuum layer design, the structural loosening and vibration problems of aluminum-plastic co-extruded doors and windows under thermal expansion and contraction and strong winds have been solved, achieving more stable, heat-insulating, safe, and burglarproof door and window performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JIANRUI CURTAIN WALL DECORATION CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-03
AI Technical Summary
Existing aluminum-plastic co-extruded doors and windows are prone to loosening and cracking at the joint interface under long-term thermal expansion and contraction, affecting structural stability and sealing performance. They are also prone to vibration in strong winds, leading to sealing and safety issues.
The structure employs a fixed ring and bolt connection structure, combined with a shock absorption mechanism and vacuum layer design. The outer frame is fixed by rotating the turntable to drive the slider and bolts, which enhances the structural stability. The shock absorption mechanism uses damping rods and springs to absorb vibration energy, and the thermal insulation performance is improved by combining insulation strips and vacuum layer.
It effectively prevents the outer frame connection from loosening, enhances the overall structural stability of doors and windows, reduces the impact of vibration, improves thermal insulation performance and safety, and ensures sealing and anti-theft performance.
Smart Images
Figure CN224452623U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door and window manufacturing technology, and in particular to an aluminum-plastic co-extruded door and window. Background Technology
[0002] Aluminum-plastic co-extruded doors and windows are composite doors and windows made by bonding a rigid surface and foamed core of plastic with an aluminum lining surface with a thickness of about 4mm. This tightly integrates the inner metal and outer plastic into one, combining the traditional metal and plastic doors and windows. It combines the high strength of metal doors and windows with the thermal insulation advantages of plastic doors and windows, representing a major revolution in the history of doors and windows. It also has good moisture-proof and corrosion-resistant properties.
[0003] A search revealed Chinese Patent Publication No. CN115288573B, which discloses an integrated door and window made of aluminum-plastic co-extruded profiles. This invention belongs to the field of door and window technology, specifically an integrated door and window made of aluminum-plastic co-extruded profiles. It includes a window frame with a U-shaped structure, a window sash rotatably connected to the frame, and an outward-opening window sash with a window lock installed. On the left side of the window sash, a storage box is installed on the surface of the window frame, and a screen is wound inside the storage box via a rotating rod. On the right side of the storage box, a sliding groove is formed on the U-shaped surface of the window frame, and a sliding plate is slidably connected within the groove and fixed to the screen. The invention also includes a pull-back mechanism for pulling the window sash back. This invention primarily addresses the problem of needing to extend one's hand outside the window when closing the window, which can be uncomfortable and may even cause upper body discomfort. The handle needs to extend outside the window to reach the door, posing a safety hazard. Aluminum-plastic co-extruded windows have a relatively complex structure; improper sealing at corners and joints can easily lead to gaps, causing rainwater leakage and air infiltration. High-quality sealing strips are used, ensuring a tight, gap-free installation during window and door installation. Optimizing the window and door design by increasing sealing points and layers is also crucial. However, aluminum has a higher coefficient of thermal expansion than plastic, resulting in inconsistent expansion and contraction at different temperatures. This leads to stress concentration at the aluminum-plastic joint. Long-term, repeated thermal expansion and contraction can cause loosening and cracking at the aluminum-plastic interface, affecting the overall structural stability and sealing of the window and door. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides an aluminum-plastic co-extruded door and window, which aims to improve the problem that the bonding interface between aluminum and plastic will loosen and crack under long-term repeated thermal expansion and contraction in the existing technology, affecting the overall structural stability and sealing of the door and window.
[0005] To achieve the above objectives, this utility model adopts the following technical solution: an aluminum-plastic co-extruded door and window, comprising an outer frame, with fixing rings installed at the four corners of the front side of the outer wall of the outer frame, fixing blocks fixedly connected to the inner side of the fixing rings, grooves formed on the inner wall of the fixing blocks, sliders slidably connected to the inner wall of the grooves, threaded holes formed on the inner wall of the sliders, bolts threadedly connected to the inner side of the threaded holes, a turntable rotatably connected to the center of the front side of the fixing blocks, cranks rotatably connected to the inner side of the turntable at equal intervals, the end of the cranks rotatably connected to the front side of the top wall of the sliders, multiple sliding grooves equidistantly formed on the inner wall of the outer frame, window frames slidably connected to the inner side of the sliding grooves, and a shock-absorbing mechanism installed in the center of the inner wall of the window frame, the shock-absorbing mechanism being used to reduce the vibration impact on the window caused by strong winds.
[0006] The above technical solution works as follows: by rotating the turntable, the four cranks can rotate. Since the inner wall of the groove is slidably connected to the slider, and the end of the crank is rotatably connected to the front side of the top wall of the slider, the crank drives the slider to slide towards the center of the turntable in the groove. After the slider approaches the turntable, the turntable stops rotating. Then, the bolt is aligned with the threaded hole and screwed in. The bolt will enter the interior of the outer frame, fixing the outer frame, the fixing block and the slider together, preventing the connection of the outer frame from loosening and falling off, which would affect the overall structural stability of the door and window.
[0007] As a further description of the above technical solution:
[0008] The shock absorption mechanism includes an insulation layer, which is installed in the middle of the inner wall of the window frame. Multiple cavities are equidistantly opened on the inner side of the insulation layer. Insulation strips are equidistantly installed on the inner walls of the multiple cavities. Damping rods are equidistantly installed on the inner sides of the insulation strips. Springs are installed on the outer walls of the damping rods. Gaskets are fixedly connected to the front and rear ends of the damping rods. The gaskets are connected to the inner walls of the insulation layer.
[0009] Through the above technical solution: the vibration of the window frame is transmitted to the shims, the shims compress the damping rods, and the damping rods compress the springs. When the springs are subjected to vibration, they undergo elastic deformation, absorbing and buffering the vibration energy. This allows the damping rods to adapt to the weight of the window frame and the vibration frequency, further improving the vibration resistance of the window frame. It can effectively isolate the vibration caused by strong winds blowing the window frame. The thermal insulation strips are uniformly combined, have appropriate density, and are well-bonded, providing good sound insulation, heat insulation, shock absorption, and noise reduction. They can effectively reduce heat transfer and improve the thermal insulation performance of doors and windows.
[0010] As a further description of the above technical solution:
[0011] A handle is fixedly connected to the front side of the outer wall of the window frame, and an anti-slip sleeve is installed on the outer wall of the handle.
[0012] Through the above technical solution: the handle is used to control the opening and closing of doors and windows, and the anti-slip sleeve has good elasticity and flexibility, which can fit tightly to the handle and provide a reliable anti-slip effect.
[0013] As a further description of the above technical solution:
[0014] A fixing frame is installed on the top rear side of the outer frame, and a rain shelter is fixedly connected to the top of the fixing frame.
[0015] Through the above technical solutions, the rain shelter has good weather resistance, corrosion resistance and decorative properties, is lightweight, easy to install, and has a variety of colors and textures to choose from, which can coordinate with the appearance of doors, windows and buildings.
[0016] As a further description of the above technical solution:
[0017] An anti-theft net is installed on the rear side of the outer wall of the outer frame.
[0018] The above technical solution provides a simple and secure anti-theft net structure with strong anti-theft performance, effectively preventing thieves from entering the room through windows. It is suitable for places with high anti-theft requirements.
[0019] As a further description of the above technical solution:
[0020] Multiple panes of glass are fixedly connected at equal intervals on the inner center of the window frame.
[0021] Through the above technical solution, the glass undergoes a special heat treatment process, which gives it a certain degree of light transmittance and visibility, meeting basic lighting needs, and providing good impact resistance and safety.
[0022] As a further description of the above technical solution:
[0023] A vacuum layer is provided on the inner side of the glass.
[0024] The above technical solution involves creating a vacuum layer between two layers of glass, forming a space with almost no air. By using a special process to extract the air between the glass panes to create a vacuum, heat transfer can be effectively reduced, improving the thermal insulation performance of doors and windows, while also providing good sound insulation.
[0025] As a further description of the above technical solution:
[0026] Sealing strips are fixedly connected to all four corners of the glass.
[0027] The above technical solution allows for the sealing strip to be used to seal the corners and joints of doors and windows, preventing rainwater and air penetration, and providing good adhesion and sealing performance.
[0028] This utility model has the following beneficial effects:
[0029] 1. In this utility model, by rotating the turntable, the four cranks can rotate. Since the inner wall of the groove is slidably connected to the slider, and the end of the crank is rotatably connected to the front side of the top wall of the slider, the crank drives the slider to slide towards the center of the turntable in the groove. After the slider approaches the turntable, the turntable stops rotating. Then, the bolt is aligned with the threaded hole and screwed in. The bolt will enter the inner frame and fix the outer frame, the fixing block and the slider together, preventing the outer frame connection from loosening and falling off, which would affect the overall structural stability of the door and window.
[0030] 2. In this utility model, the vibration of the window frame transmits the force to the shim, the shim compresses the damping rod, and the damping rod compresses the spring. When the spring is subjected to vibration, it undergoes elastic deformation, absorbing and buffering the vibration energy. This allows the damping rod to adapt to the weight of the window frame and the vibration frequency during vibration, further improving the vibration resistance of the window frame. It can effectively isolate the vibration caused by strong winds blowing the window frame. The thermal insulation strips are uniformly combined, have appropriate density, and are well bonded, providing good sound insulation, heat insulation, shock absorption, and noise reduction. They can effectively reduce heat transfer and improve the thermal insulation performance of doors and windows. Attached Figure Description
[0031] Figure 1 This is a perspective view of an aluminum-plastic co-extruded door and window proposed in this utility model;
[0032] Figure 2 This is a front view of an aluminum-plastic co-extruded door and window proposed in this utility model;
[0033] Figure 3 This is a partial structural exploded view of an aluminum-plastic co-extruded door and window proposed in this utility model;
[0034] Figure 4 This is a schematic diagram of a shock-absorbing mechanism for an aluminum-plastic co-extruded door and window proposed in this utility model;
[0035] Figure 5 This is a partial structural diagram of an aluminum-plastic co-extruded door and window proposed in this utility model.
[0036] Legend:
[0037] 1. Outer frame; 2. Shock absorption mechanism; 201. Insulation layer; 202. Cavity; 203. Insulation strip; 204. Damping rod; 205. Spring; 206. Gasket; 3. Fixing ring; 4. Fixing bracket; 5. Rain shelter; 6. Window frame; 7. Slide track; 8. Glass; 9. Security grille; 10. Anti-slip sleeve; 11. Handle; 12. Fixing block; 13. Sliding block; 14. Crank; 15. Turntable; 16. Threaded hole; 17. Groove; 18. Bolt; 19. Vacuum layer; 20. Sealing strip. Detailed Implementation
[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0039] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of an aluminum-plastic co-extruded door and window, including an outer frame 1. Fixing rings 3 are installed at the four corners of the front side of the outer wall of the outer frame 1. Fixing blocks 12 are fixedly connected to the inner side of the fixing rings 3. Grooves 17 are formed on the inner wall of the fixing blocks 12. Sliding sliders 13 are slidably connected to the inner wall of the grooves 17. Threaded holes 16 are formed on the inner wall of the sliders 13. Bolts 18 are threadedly connected to the inner side of the threaded holes 16. A turntable 15 is rotatably connected to the center of the front side of the fixing blocks 12. Cranks 14 are rotatably connected to the inner side of the turntable 15 at equal intervals. The end of the cranks 14 is rotatably connected to... On the front side of the top wall of slider 13, cranks 14 are evenly distributed on the inner side of turntable 15. By rotating turntable 15, the four cranks 14 can rotate synchronously. Since there is a sliding connection between the inner wall of groove 17 and slider 13, the ends of cranks 14 are rotatably connected to the front side of the top wall of slider 13. Therefore, when cranks 14 rotate, they drive slider 13, causing slider 13 to move towards the center of turntable 15 within groove 17. When slider 13 approaches turntable 15, turntable 15 stops rotating. Then, bolt 18 is aligned with threaded hole 1. 6. Screw it in. Bolt 18 will pass through the hole in the outer frame 1 and enter the interior of the outer frame 1, tightly connecting with the fixing block 12 and the slider 13. In this way, the outer frame 1, the fixing block 12 and the slider 13 are fixed together. This design can effectively prevent the connection of the outer frame 1 from loosening and avoid the phenomenon of falling off due to loosening, thereby ensuring that the overall structural stability of the door and window is not affected. Multiple sliding grooves 7 are equally spaced on the inner wall of the outer frame 1. The window frame 6 is slidably connected to the inner side of the sliding grooves 7. A shock-absorbing mechanism 2 is installed in the middle of the inner wall of the window frame 6. The shock-absorbing mechanism 2 is used to reduce the impact of strong winds on the window. To mitigate the impact of vibrations, a handle 11 is fixedly connected to the front side of the outer wall of the window frame 6. An anti-slip sleeve 10 is installed on the outer wall of the handle 11. The handle 11 is used to control the opening and closing of the door and window. The anti-slip sleeve 10 has good elasticity and flexibility, can fit tightly against the handle 11, and provides a reliable anti-slip effect. A fixing bracket 4 is installed on the top rear side of the outer frame 1. A rain shelter 5 is fixedly connected to the top of the fixing bracket 4. The rain shelter 5 has good weather resistance, corrosion resistance and decorative properties. It is lightweight, easy to install, and the surface can be selected with a variety of colors and textures to coordinate with the appearance of the door, window and building.
[0040] Specifically, cranks 14 are equidistantly rotatably connected to the inner side of the turntable 15. By rotating the turntable 15, the four cranks 14 can rotate. Since the inner wall of the groove 17 is slidably connected to the slider 13, and the end of the crank 14 is rotatably connected to the front side of the top wall of the slider 13, the crank 14 drives the slider 13 to slide towards the center of the turntable 15 in the groove 17. After the slider 13 approaches the turntable 15, the turntable 15 stops rotating. Then, the bolt 18 is aligned with the threaded hole 16 and screwed in. The bolt 18 will enter the interior of the outer frame 1, fixing the outer frame 1, the fixing block 12 and the slider 13 together, preventing the connection of the outer frame 1 from loosening and falling off, which would affect the overall structural stability of the door and window.
[0041] Reference Figure 2 , Figure 4 and Figure 5 The damping mechanism 2 includes an insulation layer 201, which is installed in the middle of the inner wall of the window frame 6. Multiple cavities 202 are equidistantly formed on the inner side of the insulation layer 201. Insulation strips 203 are equidistantly installed on the inner walls of each cavity 202. Damping rods 204 are equidistantly installed on the inner sides of the insulation strips 203. Springs 205 are installed on the outer walls of the damping rods 204. Shims 206 are fixedly connected to the front and rear ends of the damping rods 204. The shims 206 are connected to the inner walls of the insulation layer 201. When the window frame 6 vibrates, the vibration is transmitted to the damping rods 204 through the shims 206. Under the action of vibration, the damping rods 204 compress the springs 205. The springs 205 undergo elastic deformation under the influence of vibration, thereby absorbing and buffering the vibration. The design of the damping rod 204 allows it to adapt to the weight and vibration frequency of the window frame 6, further enhancing the vibration resistance of the window frame 6. It can effectively isolate the vibration generated by the window frame 6 under strong winds, protecting the doors and windows from damage. The thermal insulation strip 203 has a uniform combination, appropriate density, and tight connection, and has excellent sound insulation, heat insulation, shock absorption and noise reduction functions. It can significantly reduce heat transfer, improve the thermal insulation effect of the doors and windows, and ensure the comfort of the indoor environment. The outer wall of the outer frame 1 is equipped with a burglarproof net 9. Multiple glass panes 8 are fixedly connected at equal intervals in the middle of the inner side of the window frame 6. The burglarproof net 9 has a simple structure, is firmly installed, and has strong anti-theft performance. It can effectively prevent thieves from entering the room through the window and is suitable for places with high anti-theft requirements.
[0042] Specifically, the vibration of the window frame 6 transmits the force to the gasket 206, which compresses the damping rod 204. The damping rod 204 then compresses the spring 205. When the spring 205 is subjected to vibration, it undergoes elastic deformation, absorbing and buffering the vibration energy. This allows the damping rod 204 to adapt to the weight of the window frame 6 and the vibration frequency during vibration, further improving the vibration resistance of the window frame 6. It can effectively isolate the vibration generated by the window frame 6 being blown by strong winds. The thermal insulation strip 203 is uniformly assembled, has a suitable density, and is well-bonded, providing good sound insulation, heat insulation, shock absorption, and noise reduction. It can effectively reduce heat transfer and improve the thermal insulation performance of doors and windows. The glass 8 undergoes a special heat treatment process, giving it a certain degree of light transmittance and visibility, meeting basic lighting requirements, and providing good impact resistance and safety.
[0043] Reference Figure 1 , Figure 2 and Figure 4 A vacuum layer 19 is provided on the inner side of the glass 8, and sealing strips 20 are fixedly connected to the four corners of the glass 8.
[0044] Specifically, the vacuum layer 19 is a space with almost no air formed between the two layers of glass 8. The air between the glass 8 is extracted through a special process to form a vacuum state, which can effectively reduce heat transfer and improve the thermal insulation performance of doors and windows. It also has a good sound insulation effect. The sealing strip 20 is used to seal the corners, joints and other parts of doors and windows to prevent rainwater and air penetration. It has good adhesion and sealing performance.
[0045] Working principle: Rotary cranks 14 are equidistantly arranged on the inner side of the turntable 15. By rotating the turntable 15, the four cranks 14 can rotate synchronously. Since there is a sliding connection between the inner wall of the groove 17 and the slider 13, the end of the crank 14 is rotatably connected to the front side of the top wall of the slider 13. Therefore, when the crank 14 rotates, it drives the slider 13, causing the slider 13 to slide towards the center of the turntable 15 within the groove 17. When the slider 13 approaches the turntable 15, the turntable 15 stops rotating. Then, the bolt 18 is aligned with the threaded hole 16 and screwed in. The bolt 18 passes through the hole in the outer frame 1 and enters the interior of the outer frame 1, tightly connecting with the fixing block 12 and the slider 13, thus fixing the outer frame 1, fixing block 12, and slider 13 together. This design effectively prevents loosening at the connection of the outer frame 1, avoiding detachment due to loosening, thereby ensuring that the overall structural stability of the door and window is not affected.
[0046] When the window frame 6 vibrates, this vibration is transmitted to the damping rod 204 through the gasket 206. When the damping rod 204 is vibrated, it compresses the spring 205. The spring 205 undergoes elastic deformation under the action of vibration, thereby absorbing and buffering the vibration energy. This design allows the damping rod 204 to adapt to the weight of the window frame 6 and the vibration frequency during vibration, further improving the vibration resistance of the window frame 6. It can effectively isolate the vibration generated when the window frame 6 is blown by strong winds, thereby protecting the doors and windows from damage. The thermal insulation strip 203 has a uniform combination, appropriate density, and good bonding. It has good sound insulation, heat insulation, shock absorption, and noise reduction effects, which can effectively reduce heat transfer, improve the thermal insulation performance of doors and windows, and ensure the comfort of the indoor environment.
[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.
Claims
1. An aluminium-polymer co-extruded door and window comprising an outer frame (1), characterized in that: Fixed rings (3) are installed at the four corners of the front side of the outer wall of the outer frame (1). Fixed blocks (12) are fixedly connected to the inner side of the fixed rings (3). Grooves (17) are opened on the inner wall of the fixed blocks (12). Slider (13) is slidably connected to the inner wall of the grooves (17). Threaded holes (16) are opened on the inner wall of the slider (13). Bolts (18) are threadedly connected to the inner side of the threaded holes (16). Turntable (15) is rotatably connected to the middle of the front side of the fixed blocks (12). Cranks (14) are equidistantly rotatably connected to the inner side of the turntable (15). The end of the crank (14) is rotatably connected to the front side of the top wall of the slider (13). Multiple sliding grooves (7) are equidistantly opened on the inner wall of the outer frame (1). Window frames (6) are slidably connected to the inner side of the sliding grooves (7). A shock-absorbing mechanism (2) is installed in the middle of the inner wall of the window frame (6). The shock-absorbing mechanism (2) is used to reduce the vibration impact on the window caused by strong winds.
2. An aluminum-plastic co-extrusion door and window according to claim 1, characterized in that: The damping mechanism (2) includes an insulation layer (201), which is installed in the middle of the inner wall of the window frame (6). Multiple cavities (202) are equidistantly opened on the inner side of the insulation layer (201). Insulation strips (203) are equidistantly installed on the inner walls of the multiple cavities (202). Damping rods (204) are equidistantly installed on the inner side of the insulation strips (203). Springs (205) are installed on the outer wall of the damping rods (204). Gaskets (206) are fixedly connected to the front and rear ends of the damping rods (204). The gaskets (206) are connected to the inner wall of the insulation layer (201).
3. The co-extruded aluminum plastic door and window according to claim 1, characterized in that: A handle (11) is fixedly connected to the front side of the outer wall of the window frame (6), and an anti-slip sleeve (10) is installed on the outer wall of the handle (11).
4. The aluminum-plastic co-extruded door and window according to claim 1, characterized in that: A fixing frame (4) is installed on the top rear side of the outer frame (1), and a rain shelter (5) is fixedly connected to the top of the fixing frame (4).
5. The co-extruded aluminum door and window according to claim 1, wherein: An anti-theft net (9) is installed on the rear side of the outer wall of the outer frame (1).
6. An aluminum-plastic co-extrusion door and window according to claim 1, characterized in that: Multiple glass panes (8) are fixedly connected at equal intervals on the inner center of the window frame (6).
7. An aluminum-plastic co-extrusion door and window according to claim 6, characterized in that: A vacuum layer (19) is provided on the inner side of the glass (8).
8. The co-extruded aluminum plastic door and window according to claim 6, characterized in that: Sealing strips (20) are fixedly connected to the four corners of the glass (8).