Reinforced aluminum alloy door and window

By designing a window cleaning mechanism and a reinforced snap-fit ​​mechanism, the cleaning challenges and unstable connection issues of reinforced aluminum alloy doors and windows are solved, achieving automated cleaning and stable connection, thus improving the cleaning efficiency and structural strength of the windows.

CN223964382UActive Publication Date: 2026-03-03BINZHOU CHENGMING DOORS & WINDOWS CO LTD
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Patent Information

Application Number
CN202520601799.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-01
Publication Date
2026-03-03
Estimated Expiration
2035-04-01

AI Technical Summary

Technical Problem

Existing reinforced aluminum alloy doors and windows are difficult to clean, have unstable connections, and are inconvenient to disassemble the reinforcing beams.

Method used

The design includes a window cleaning mechanism, a reinforcement clamping mechanism, and a clamping auxiliary mechanism, comprising a drive motor, a transmission belt assembly, a cleaning beam, a reinforcement beam, clamping pipes, and a rotating sleeve, to achieve automated cleaning and secure connection.

Benefits of technology

It improves window cleaning efficiency and structural stability, simplifies the disassembly process, enhances the window's pressure and wind resistance, and ensures the stability and durability of the connection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a reinforced aluminum alloy door and window which comprises a window body, a window face cleaning mechanism, a reinforced clamping mechanism and a clamping auxiliary mechanism, and the window face cleaning mechanism comprises a driving motor, a transmission belt assembly, a top beam, a bottom beam, a guide frame and a cleaning beam. The reinforcing and clamping mechanism comprises a reinforcing beam, a clamping pipe, a clamping rod, a clamping groove, a rotating sleeve, a gradient block, a pushed block and an extending rod, a cleaning brush on the cleaning beam makes contact with the surface of glass, window glass can be effectively cleaned, the permeability and attractiveness of a window are kept, through the design of a guide frame and a guide wheel, the cleaning beam can precisely and stably slide in the window body, and the cleaning effect is good. Through cooperation of the reinforcing beam, the clamping pipe, the clamping rod and other assemblies, extra strength and stability can be provided for the window body, the compression resistance and wind resistance of the window body are effectively enhanced, the reinforcing structure can be easily and conveniently connected and disassembled through the design of the rotating sleeve and the slope block, and maintenance of the window body is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and more specifically, to a reinforced aluminum alloy door and window. Background Technology

[0002] Most existing reinforced aluminum alloy doors and windows use traditional window cleaning methods. The design and structure of these windows are usually not conducive to cleaning, especially in the corners and hard-to-reach areas of the window frame. Dust, stains or pollutants may accumulate on the window surface. However, due to the relatively complex window structure, cleaning work usually needs to be done manually, and it is difficult to completely remove some stubborn stains.

[0003] While the reinforcement design of reinforced aluminum alloy doors and windows effectively enhances the stability of the window frame, many reinforcement connection methods in the existing technology do not have sufficient stability and reliability. Reinforcement structures usually rely on welding for connection, but the welded points may crack or fall off due to corrosion or external forces.

[0004] While the existing reinforced aluminum alloy door and window reinforcement beam design can effectively increase the structural strength of the window, it also presents great inconvenience when it needs to be disassembled or adjusted. Usually, the reinforcement beam needs to be disassembled with special tools, and the fixing bolts or clamps need to be removed step by step during the disassembly process. This process is both time-consuming and cumbersome. The difficulty of disassembling the reinforcement beam increases the cost of maintenance and replacement, and also makes it more difficult to conduct regular inspections or repairs of the windows. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides a reinforced aluminum alloy door and window to solve the technical problems mentioned in the background art, such as the window surface being difficult to clean, the reinforcement connection being unstable, and the inconvenience of disassembling the reinforcement beam.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a reinforced aluminum alloy door and window, comprising a window frame, a window surface cleaning mechanism, a reinforcing snap-fit ​​mechanism, and a snap-fit ​​auxiliary mechanism. The window surface cleaning mechanism includes a drive motor, a transmission belt assembly, a top beam, a bottom beam, a guide frame, and a cleaning beam. The top beam and bottom beam are respectively installed at the top and bottom ends of the window frame. The drive motor is installed at one end of the top beam and bottom beam. The transmission belt assembly is fitted onto the top beam and bottom beam and is connected to the drive motor. The guide frame is installed on the transmission belt assembly. The cleaning beam is installed on the guide frame. The reinforcing clamping mechanism includes a reinforcing beam, a clamping tube, a clamping rod, a clamping groove, a rotating sleeve, a slope block, a push block, and an extension rod. The reinforcing beam is obliquely installed on one end face of the window. The clamping tube is installed on the window. The clamping groove is set on the side wall of the clamping rod. The rotating sleeve is limited and rotated on the outer wall of the clamping tube. The slope block is installed on the inner wall of the rotating sleeve. The extension rod is horizontally set on the side wall of the clamping tube. The push block is installed on one end of the extension rod. The rotating slope block can push the push block, so that the extension rod extends into the clamping groove.

[0009] The present invention is further configured such that the snap-fit ​​auxiliary mechanism includes a rotating block, a mating groove, a spring rod, a threaded ring, a directional ring, a clamping plate, and a clamping block. The rotating block is installed at the bottom end of the rotating sleeve. Multiple sets of spring rods are arranged in a ring on the outer wall of the snap-fit ​​tube. The mating groove is set on the rotating block. Multiple spring rods can be inserted into the mating groove in turn to make the rotating sleeve rotate stably. The threaded ring is threadedly connected to the outer wall of the snap-fit ​​tube. The directional ring is slidably installed on the outer wall of the snap-fit ​​tube. The clamping plate is installed on the side wall of the directional ring. The clamping block is installed on the outer wall of the rotating sleeve. The longitudinally moving clamping plate can fit the clamping block to prevent the rotating sleeve from rotating.

[0010] The present invention is further configured such that a glass body is installed on the window frame, and a cleaning brush is installed at one end of the cleaning beam, and the cleaning brush is in contact with the surface of the glass body. The contact between the cleaning brush and the glass surface can effectively clean the glass surface and maintain the transparency and aesthetics of the window.

[0011] The present invention is further configured such that guide wheels are installed on the guide frame, and the guide wheels are directionally slidably arranged in conjunction with the top beam and the bottom beam. The design of the guide wheels in conjunction with the guide frame enables the cleaning beam to slide accurately and stably within the window, avoiding deviation and jamming, and improving the accuracy and efficiency of the cleaning process.

[0012] The present invention is further configured such that a first longitudinal plate is installed on the window body, and a second longitudinal plate is symmetrically installed at both ends of the reinforcing beam, and the first longitudinal plate and the second longitudinal plate are connected by the reinforcing snap-fit ​​mechanism.

[0013] The present invention is further provided that a connecting plate is installed at the bottom of the side wall of the clamping tube, and the connecting plate is fixedly installed on one end face of the first longitudinal plate. The setting of the connecting plate facilitates the stable connection of the clamping tube.

[0014] The present invention is further configured such that one end of the snap-fit ​​rod can pass through the first longitudinal plate and the second longitudinal plate, and is snap-fitted with the snap-fit ​​tube. The snap-fit ​​tube is fixed on the window body, and the stable connection between the window body and the reinforcement structure is achieved through the cooperation with the snap-fit ​​rod, thereby effectively improving the structural strength of the door and window.

[0015] The present invention is further configured such that a thrust bearing is installed between the threaded ring and the directional ring, and a tension spring is installed between the outer wall of the clamping tube and the push block. The tension spring facilitates the insertion rod to move away from the clamping groove when the clamping is released.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides a reinforced aluminum alloy door and window, which has the following beneficial effects:

[0018] This utility model features a window cleaning mechanism. The cleaning brush on the cleaning beam contacts the glass surface, effectively cleaning the window glass and maintaining the window's transparency and aesthetics. Through the design of the guide frame and guide wheels, the cleaning beam can slide precisely and stably within the window, avoiding deviation and jamming, thereby improving the accuracy and efficiency of the cleaning process. The drive motor and transmission belt assembly work together to automate window cleaning, reduce manual intervention, and improve cleaning efficiency.

[0019] This utility model features a reinforced snap-fit ​​mechanism. Through the cooperation of components such as the reinforcing beam, snap-fit ​​tube, and snap-fit ​​rod, it can provide additional strength and stability to the window, effectively enhancing the window's resistance to pressure and wind. The design of the rotating sleeve and slope block allows the reinforced structure to be easily connected and disassembled, facilitating window maintenance. The cooperation between the snap-fit ​​rod and the snap-fit ​​tube ensures a stable connection between the window and the reinforced structure, improving the overall structural strength and durability.

[0020] This utility model features a snap-fit ​​auxiliary mechanism. The design of the spring rod and the mating groove ensures stable rotation of the rotating sleeve, preventing jamming or instability during use. The cooperation between the threaded ring, the directional ring, and the thrust bearing further improves the stability and durability of the snap-fit ​​structure, reduces wear on mechanical parts, and prevents ineffective rotation of the rotating sleeve by the cooperation of the clamping plate and the clamping block. This ensures the correct operation of the reinforced structure and enhances the safety and reliability of the device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the structure of this utility model;

[0025] Figure 5 This is a schematic diagram of the structure of this utility model.

[0026] In the diagram: 1. Window; 2. Drive motor; 3. Transmission belt assembly; 4. Top beam; 5. Bottom beam; 6. Guide frame; 7. Cleaning beam; 8. Reinforcing beam; 9. Clip-on pipe; 10. Clip-on rod; 11. Clip groove; 12. Rotating sleeve; 13. Slope block; 14. Push block; 15. Extension rod; 16. Rotating block; 17. Mating groove; 18. Spring rod; 19. Threaded ring; 20. Orienting ring; 21. Clamping plate; 22. Clamping block; 23. Glass body; 24. Cleaning brush; 25. Guide wheel; 26. First longitudinal plate; 27. Second longitudinal plate; 28. Connecting plate; 29. ​​Thrust bearing; 30. Reverse tension spring. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5A reinforced aluminum alloy door and window includes a window body 1, a window surface cleaning mechanism, a reinforcing locking mechanism, and a locking auxiliary mechanism. The window surface cleaning mechanism includes a drive motor 2, a transmission belt assembly 3, a top beam 4, a bottom beam 5, a guide frame 6, and a cleaning beam 7. The top beam 4 and bottom beam 5 are respectively installed at the top and bottom ends of the window body 1. The drive motor 2 is installed at one end of the top beam 4 and bottom beam 5. The transmission belt assembly 3 is fitted onto the top beam 4 and bottom beam 5 and is connected to the drive motor 2. The guide frame 6 is installed on the transmission belt assembly 3, and the cleaning beam 7 is installed on the guide frame 6. The reinforcing locking mechanism includes a... The reinforcement beam 8, clamping pipe 9, clamping rod 10, clamping groove 11, rotating sleeve 12, slope block 13, push block 14, and extension rod 15 are installed diagonally on one end face of the window 1. The clamping pipe 9 is installed on the window 1. The clamping groove 11 is set on the side wall of the clamping rod 10. The rotating sleeve 12 is installed on the outer wall of the clamping pipe 9 for limiting rotation. The slope block 13 is installed on the inner wall of the rotating sleeve 12. The extension rod 15 is set laterally on the side wall of the clamping pipe 9. The push block 14 is installed on one end of the extension rod 15. The rotating slope block 13 can push the push block 14, so that the extension rod 15 extends into the clamping groove 11.

[0031] In this embodiment, the window cleaning mechanism forms a moving frame through the top beam 4 and the bottom beam 5. The drive motor 2 drives the transmission belt assembly 3 to run. The guide frame 6 moves smoothly between the top beam 4 and the bottom beam 5 under the drive of the transmission belt assembly 3 via the guide wheel 25. The cleaning brush 24 on the cleaning beam 7 keeps in contact with the surface of the glass body 23. As the guide frame 6 moves, it achieves comprehensive cleaning, ensuring the uniformity and reliability of the cleaning effect. The reinforcing snap-fit ​​mechanism ensures the stability of the window structure 1. The inclined reinforcing beam 8 is connected to the window 1 through the first longitudinal plate 26 and the second longitudinal plate 27. The snap-fit ​​tube 9 is fixed on the first longitudinal plate 26. The snap-fit ​​rod 10 can pass through the two longitudinal plates and snap-fit ​​with the snap-fit ​​tube 9. The rotating sleeve 12 rotates on the outer wall of the snap-fit ​​tube 9. The slope block 13 on the inner wall pushes the push block 14, driving the extension rod 15 into the snap-fit ​​groove 11 on the side wall of the snap-fit ​​rod 10, forming a reliable locking mechanism.

[0032] The snap-fit ​​auxiliary mechanism includes a rotating block 16, a mating groove 17, a spring rod 18, a threaded ring 19, a directional ring 20, a clamping plate 21, and a clamping block 22. The rotating block 16 is installed at the bottom end of the rotating sleeve 12. Multiple sets of spring rods 18 are arranged in a ring on the outer wall of the snap-fit ​​tube 9. The mating groove 17 is set on the rotating block 16. Multiple spring rods 18 can be inserted into the mating groove 17 in turn to make the rotating sleeve 12 rotate stably. The threaded ring 19 is threadedly connected to the outer wall of the snap-fit ​​tube 9. The directional ring 20 is directionally slidably installed on the outer wall of the snap-fit ​​tube 9. The clamping plate 21 is installed on the side wall of the directional ring 20. The clamping block 22 is installed on the outer wall of the rotating sleeve 12. The longitudinally moving clamping plate 21 can fit the clamping block 22 to prevent the rotating sleeve 12 from rotating.

[0033] In this embodiment, a mating groove 17 is provided on the rotating block 16 at the bottom of the rotating sleeve 12. Multiple sets of spring rods 18 on the outer wall of the clamping tube 9 can be inserted into the mating groove 17 one by one to achieve stable rotation of the rotating sleeve 12. The threaded ring 19 is mated with the directional ring 20 through the thrust bearing 29. The clamping plate 21 on the directional ring 20 can be fitted into the clamping block 22 on the outer wall of the rotating sleeve 12 to prevent the rotating sleeve 12 from rotating accidentally, so that the extension rod 15 can be stably inserted into the clamping groove 11.

[0034] Please see Figures 1-5 As a supplementary embodiment of a reinforced aluminum alloy door and window with a window cleaning mechanism, a reinforcing snap-fit ​​mechanism, and a snap-fit ​​auxiliary mechanism: A glass body 23 is installed on the window body 1, and a cleaning brush 24 is installed at one end of the cleaning beam 7, with the cleaning brush 24 in contact with the surface of the glass body 23. A guide wheel 25 is installed on the guide frame 6, and the guide wheel 25 is directionally slidably configured with the top beam 4 and the bottom beam 5. A first longitudinal plate 26 is installed on the window body 1, and a second longitudinal plate 27 is symmetrically installed at both ends of the reinforcing beam 8. The first longitudinal plate 26 and the second longitudinal plate 27 are connected by a reinforcing snap-fit ​​mechanism. A connecting plate 28 is installed at the bottom of the side wall of the snap-fit ​​tube 9, and the connecting plate 28 is fixedly installed on one end face of the first longitudinal plate 26. One end of the snap-fit ​​rod 10 can pass through the first longitudinal plate 26 and the second longitudinal plate 27 and is snap-fitted with the snap-fit ​​tube 9. A thrust bearing 29 is installed between the threaded ring 19 and the directional ring 20, and a tension spring 30 is installed between the outer wall of the snap-fit ​​tube 9 and the push block 14.

[0035] More specifically, when the entire device is put into use, the window 1 cleaning mechanism can be activated. The drive motor 2 drives the transmission belt assembly 3, which in turn drives the cleaning beam 7 to clean the cleaning brush 24 on the glass surface. At this time, the glass surface of the window 1 will be automatically cleaned to remove stains, improving the visibility and aesthetics of the window 1. The device's reinforcing and snapping mechanism plays a role in reinforcing the structure of the window 1 through components such as the reinforcing beam 8, snapping rod 10, and snapping tube 9, ensuring the stability of the window 1 under cleaning or any external force. The snapping auxiliary mechanism ensures the accuracy and stability of the reinforcing and snapping process, preventing loosening or failure caused by excessive rotation of the rotating sleeve 12 or misoperation.

[0036] In summary, when the overall equipment is in use or running: when the window cleaning mechanism is required to run, the window cleaning mechanism forms a moving frame through the top beam 4 and the bottom beam 5. The drive motor 2 drives the transmission belt assembly 3 to run. Under the drive of the transmission belt assembly 3, the guide frame 6 moves smoothly between the top beam 4 and the bottom beam 5 through the guide wheel 25. The cleaning brush 24 on the cleaning beam 7 keeps in contact with the surface of the glass body 23. With the movement of the guide frame 6, a comprehensive cleaning is achieved, ensuring the uniformity and reliability of the cleaning effect.

[0037] When the reinforcement snap-fit ​​mechanism is in operation, the reinforcement snap-fit ​​mechanism stabilizes the structure of the window 1. The inclined reinforcement beam 8 is connected to the window 1 through the first longitudinal plate 26 and the second longitudinal plate 27. The snap-fit ​​tube 9 is fixed on the first longitudinal plate 26. The snap-fit ​​rod 10 can pass through the two longitudinal plates and form a snap-fit ​​with the snap-fit ​​tube 9. The rotating sleeve 12 rotates on the outer wall of the snap-fit ​​tube 9. The slope block 13 on the inner wall pushes the push block 14, which drives the extension rod 15 into the snap-fit ​​groove 11 on the side wall of the snap-fit ​​rod 10, forming a reliable locking mechanism.

[0038] When the auxiliary mechanism needs to be engaged, the rotating block 16 at the bottom of the rotating sleeve 12 is provided with a mating groove 17. Multiple sets of spring rods 18 on the outer wall of the clamping tube 9 can be inserted into the mating groove 17 one by one to achieve stable rotation of the rotating sleeve 12. The threaded ring 19 is engaged with the directional ring 20 through the thrust bearing 29. The clamping plate 21 on the directional ring 20 can be fitted into the clamping block 22 on the outer wall of the rotating sleeve 12 to prevent the rotating sleeve 12 from rotating accidentally, so that the extension rod 15 can be stably inserted into the clamping groove 11.

[0039] When the entire device is put into use, the window 1 cleaning mechanism can be started. The drive motor 2 drives the transmission belt assembly 3, which causes the cleaning beam 7 to drive the cleaning brush 24 to clean the glass surface. At this time, the glass surface of the window 1 will be automatically cleaned to remove stains, improving the visibility and aesthetics of the window 1. The device's reinforcement and snap-fit ​​mechanism plays a role. Through the reinforcement beam 8, snap-fit ​​rod 10 and snap-fit ​​tube 9 and other components, the structure of the window 1 is reinforced to ensure the stability of the window 1 under cleaning or any external force. The snap-fit ​​auxiliary mechanism ensures the accuracy and stability of the reinforcement and snap-fit ​​process and prevents loosening or failure caused by excessive rotation of the rotating sleeve 12 or misoperation.

[0040] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. A reinforced aluminum alloy door and window, comprising a window body (1), a window surface cleaning mechanism, a reinforcing snap-fit ​​mechanism, and a snap-fit ​​auxiliary mechanism, wherein the window surface cleaning mechanism comprises a drive motor (2), a transmission belt assembly (3), a top beam (4), a bottom beam (5), a guide frame (6), and a cleaning beam (7), wherein the top beam (4) and the bottom beam (5) are respectively installed at the top and bottom ends of the window body (1), the drive motor (2) is installed at one end of the top beam (4) and the bottom beam (5), the transmission belt assembly (3) is fitted onto the top beam (4) and the bottom beam (5), the transmission belt assembly (3) is connected to the drive motor (2), the guide frame (6) is installed on the transmission belt assembly (3), and the cleaning beam (7) is installed on the guide frame. On the frame (6), the reinforcing clamping mechanism includes a reinforcing beam (8), a clamping pipe (9), a clamping rod (10), a clamping groove (11), a rotating sleeve (12), a slope block (13), a push block (14), and an extension rod (15). The reinforcing beam (8) is obliquely installed on one end face of the window (1). The clamping pipe (9) is installed on the window (1). The clamping groove (11) is set on the side wall of the clamping rod (10). The rotating sleeve (12) is limited to rotate and installed on the outer wall of the clamping pipe (9). The slope block (13) is installed on the inner wall of the rotating sleeve (12). The extension rod (15) is horizontally set on the side wall of the clamping pipe (9). The push block (14) is installed on one end of the extension rod (15).

2. The reinforced aluminum alloy door and window according to claim 1, characterized in that: The snap-fit ​​auxiliary mechanism includes a rotating block (16), a mating groove (17), a spring rod (18), a threaded ring (19), a directional ring (20), a clamping plate (21), and a clamping block (22). The rotating block (16) is installed at the bottom end of the rotating sleeve (12). Multiple sets of spring rods (18) are arranged in a ring on the outer wall of the snap-fit ​​tube (9). The mating groove (17) is set on the rotating block (16). Multiple spring rods (18) can be inserted into the mating groove (17) one after another to make the rotating sleeve (12) rotate stably. The threaded ring (19) is threadedly connected to the outer wall of the snap-fit ​​tube (9). The directional ring (20) is directionally slidably installed on the outer wall of the snap-fit ​​tube (9). The clamping plate (21) is installed on the side wall of the directional ring (20). The clamping block (22) is installed on the outer wall of the rotating sleeve (12).

3. The reinforced aluminum alloy door and window according to claim 1, characterized in that: A glass body (23) is installed on the window (1), and a cleaning brush (24) is installed at one end of the cleaning beam (7), and the cleaning brush (24) is in contact with the surface of the glass body (23).

4. The reinforced aluminum alloy door and window according to claim 1, characterized in that: The guide frame (6) is equipped with guide wheels (25), and the guide wheels (25) are directionally slidably arranged in conjunction with the top beam (4) and the bottom beam (5).

5. A reinforced aluminum alloy door and window according to claim 1, characterized in that: The window (1) is provided with a first longitudinal plate (26), and the two ends of the reinforcing beam (8) are symmetrically provided with second longitudinal plates (27). The first longitudinal plate (26) and the second longitudinal plate (27) are connected by the reinforcing snap-fit ​​mechanism.

6. A reinforced aluminum alloy door and window according to claim 5, characterized in that: A connecting plate (28) is installed at the bottom of the side wall of the card tube (9), and the connecting plate (28) is fixedly installed on one end face of the first longitudinal plate (26).

7. A reinforced aluminum alloy door and window according to claim 5, characterized in that: One end of the snap-fit ​​rod (10) can pass through the first longitudinal plate (26) and the second longitudinal plate (27) and be snapped together with the snap-fit ​​tube (9).

8. A reinforced aluminum alloy door and window according to claim 2, characterized in that: A thrust bearing (29) is installed between the threaded ring (19) and the directional ring (20), and a tension spring (30) is installed between the outer wall of the clamping pipe (9) and the push block (14).