A theft and prying prevention integrated aluminum protective door and window

By incorporating a sealing structure into aluminum doors and windows, including a stop strip, a rotating groove, a rotating shaft, and a connecting rod, the main door panel and the contact strip are fitted together, sealing the gaps in the door panel and solving the problem of doors and windows being easily pried open, thus improving the anti-theft effect.

CN224396347UActive Publication Date: 2026-06-23HENAN LECHENG BUILDING DECORATION ENGINEERING CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HENAN LECHENG BUILDING DECORATION ENGINEERING CO LTD
Filing Date
2025-07-29
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing aluminum doors and windows have gaps between the door panels, making them easy to pry open and providing poor security.

Method used

By setting a sealing structure between the door panels, including a stop strip, a rotating groove, a rotating shaft, a sealing strip, and a connecting rod, the main door panel fits against the contact strip when it rotates, and the sealing strip fits tightly to seal the gap and prevent the lock tongue from being pushed back.

Benefits of technology

It effectively prevents doors and windows from being pried open, improves anti-theft performance, and prevents the sealing strip from blocking the main door panel from closing when the door is closed.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224396347U_ABST
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Abstract

This utility model belongs to the field of door and window technology, specifically an integrated anti-theft and anti-pry aluminum protective door and window, including a door frame. A secondary door panel is rotatably installed on the inner wall of the door frame via hinges, and a main door panel is rotatably installed on the inner side wall of the door frame via hinges. A lock body is fixedly installed on the side wall of the main door panel. Handles are provided on both the front and rear side walls of the lock body. A sealing structure is provided inside the door frame. This utility model, by rotating the main door panel, causes the lock body to engage with the side wall of the secondary door panel. During the rotation of the main door panel, the side wall of the main door panel comes into contact with the side wall of the contact strip, making the contact strip and the side wall of the stop strip tightly fit together. At the same time, the contact strip pulls the sealing strip through the connecting rod to tightly fit the side wall of the main door panel away from the stop strip, blocking the gap between the secondary door panel and the main door panel, preventing the lock tongue of the lock body from being pushed back into its interior through the gap between the secondary door panel and the main door panel, and thus preventing the door from being pried open. This solves the problem that existing doors and windows are easily pried open.
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Description

Technical Field

[0001] This utility model relates to the field of door and window technology, and in particular to an integrated anti-theft and anti-pry aluminum protective door and window. Background Technology

[0002] Aluminum security doors and windows are gradually becoming the mainstream choice in the market due to their superior performance.

[0003] A search revealed Chinese patent CN207332679U, which discloses an aluminum door and window with a heat-insulating structure. The structure includes a product nameplate, peephole, door panel, connecting hinges, a top and bottom lock cover, a reinforcing protective layer, an anti-theft security lock, a fixing plate, and a door frame. The product nameplate is riveted to the upper left corner of the door panel surface. The fixing plate is welded to the inside of the door frame. The bottom surface of the reinforcing protective layer is tightly attached to the door panel surface. The reinforcing protective layer consists of a shock-absorbing protective layer, a heat-insulating layer, and a waterproof layer. The shock-absorbing protective layer is tightly attached to the back of the heat-insulating layer, the upper surface of the heat-insulating layer is tightly attached to the lower surface of the waterproof layer, and the bottom surface of the shock-absorbing protective layer is connected to the door panel surface. This patent enables aluminum doors and windows to achieve heat insulation even when the outside temperature is high, preventing high temperatures from entering the room through the aluminum doors and windows, thus improving the practicality of the device.

[0004] In the aforementioned existing technical solution, two door panels are installed inside the door frame and locked together by an anti-theft security lock. However, in actual use, due to the gap between the two door panels, the lock tongue in the lock body can be pushed back into the gap between the two door panels, thereby prying open the door, resulting in poor anti-theft effect. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model proposes an integrated anti-theft and anti-pry aluminum protective door and window. During the rotation of the main door panel, the side wall of the main door panel fits against the side wall of the contact strip, so that the side wall of the contact strip and the stop strip fit tightly. At the same time, the contact strip pulls the sealing strip through the connecting rod to fit tightly against the side wall of the main door panel away from the stop strip, blocking the gap between the sub-door panel and the main door panel. This prevents the lock tongue of the lock body from being pushed back into its interior through the gap between the sub-door panel and the main door panel, thereby preventing the door from being pried open.

[0006] The technical solution to achieve the purpose of this utility model is as follows: an integrated anti-theft and anti-pry aluminum protective door and window, including a door frame, a secondary door panel is rotatably installed on the inner wall of the door frame through a hinge, a main door panel is rotatably installed on the inner side wall of the door frame through a hinge, a lock body is fixedly installed on the side wall of the main door panel, and handles are provided on both the front and rear side walls of the lock body. The door frame is provided with a sealing structure, which includes:

[0007] A door sill is fixedly installed on the side wall of the sub-door panel, with the sill located at the end closest to the interior.

[0008] There are two rotating grooves, which are opened on the upper and lower inner walls of the door frame. A rotating shaft is rotatably installed inside each of the two rotating grooves. A sealing strip is fixedly installed on the side wall of the two rotating shafts that are close to each other. The sealing strip is aligned with the position of the stop strip.

[0009] The contact strip is located inside the door frame and fits against the side wall of the baffle. Connecting rods are rotatably installed on both the upper and lower side walls of the contact strip, and the two connecting rods are respectively fixedly installed at the upper and lower ends of the side wall of the sealing strip.

[0010] In some embodiments, the side wall of the secondary door panel closest to the main door panel is engaged with the inner wall of the door frame via a snap-fit ​​structure, the latch on the lock body is engaged with the adjacent side wall of the secondary door panel, and the two handles are engaged with the two ends of the lock rod inside the lock body respectively.

[0011] In some embodiments, a reset torsion spring is provided inside the rotating groove. The reset torsion spring is sleeved on the side wall of the rotating shaft, and the upper and lower ends of the reset torsion spring are respectively engaged with the inner top wall of the rotating groove and the top wall of the sealing strip.

[0012] In some embodiments, a contact groove is provided on the side wall of the main door panel near the baffle.

[0013] In some embodiments, the upper and lower side walls of the main door panel are provided with receiving grooves, and the receiving grooves are connected to the contact grooves.

[0014] In some embodiments, the end of the handle near the baffle that is away from the main door panel corresponds to the side wall of the sub-door panel, and the end of the handle away from the baffle that is away from the sub-door panel corresponds to the side wall of the main door panel.

[0015] Compared with the prior art, the significant advantages of this utility model are:

[0016] Firstly, this utility model, by rotating the main door panel, causes the lock body to engage with the side wall of the secondary door panel. During the rotation, the side wall of the main door panel comes into contact with the side wall of the contact strip, ensuring a tight fit between the contact strip and the side wall of the stop strip. Simultaneously, the contact strip, through the connecting rod, pulls the sealing strip to tightly fit against the side wall of the main door panel away from the stop strip, blocking the gap between the secondary door panel and the main door panel. This prevents the lock tongue from being pushed back into its interior through the gap between the secondary door panel and the main door panel, thus preventing the door from being pried open. This solves the problem of existing doors and windows being easily pried open.

[0017] Secondly, this utility model utilizes the elasticity of the reset torsion spring to allow the sealing strip to rotate outward around the rotation axis. When the main door panel is in the open state, the sealing strip and the sub-door panel are in a mutually perpendicular state, allowing the sealing strip to make room for a certain amount of space. This prevents the sealing strip from blocking the side wall of the main door panel when it is closed, thus preventing the main door panel from being unable to be closed. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the main door panel in the open state of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the door frame of this utility model;

[0023] Figure 5 This is a utility model Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 This is a schematic diagram of the contact strip position of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Door frame; 2. Secondary door panel; 3. Main door panel; 4. Lock body; 5. Handle; 6. Sealing strip; 7. Rotating groove; 8. Rotating shaft; 9. Return torsion spring; 10. Connecting rod; 11. Contact strip; 12. Receiving groove; 13. Contact groove; 14. Stop bar. Detailed Implementation

[0027] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0028] This utility model provides an improved integrated anti-theft and anti-pry aluminum protective door and window. The technical solution of this utility model is as follows:

[0029] like Figures 1-6As shown, an integrated anti-theft and anti-pry aluminum protective door and window includes a door frame 1. A secondary door panel 2 is rotatably installed on the inner wall of the door frame 1 via hinges. A main door panel 3 is rotatably installed on the inner side wall of the door frame 1 via hinges. The side wall of the secondary door panel 2 closest to the main door panel 3 is snapped onto the inner side wall of the door frame 1 via a snap-fit ​​structure. A lock body 4 is fixedly installed on the side wall of the main door panel 3. The lock tongue of the lock body 4 is snapped onto the adjacent side wall of the secondary door panel 2. Handles 5 are provided on both the front and rear side walls of the lock body 4. The two handles 5 are respectively snapped onto the two ends of the lock rod inside the lock body 4. A sealing structure is provided inside the door frame 1. The sealing structure includes a stop bar 14, a rotating groove 7, and a contact bar 11. The stop bar 14 is fixedly installed on the side wall of the secondary door panel 2, and the stop bar 14 is located at the end closest to the interior. There are two rotating grooves 7, which are opened on the upper and lower side walls inside the door frame 1. A rotating shaft 8 is rotatably installed inside each of the two rotating grooves 7. A sealing strip 6 is fixedly installed on the side wall of the two rotating shafts 8 that are close to each other, and the sealing strip 6 is aligned with the position of the stop strip 14. The contact strip 11 is set inside the door frame 1 and is in contact with the side wall of the stop strip 14. The upper and lower sides of the contact strip 11 are rotatably installed with connecting rods 10, and the two connecting rods 10 are fixedly installed at the upper and lower ends of the side wall of the sealing strip 6 respectively. By rotating the main door panel 3, the lock body 4 is engaged with the side wall of the secondary door panel 2. During the rotation, the side wall of the main door panel 3 is in contact with the side wall of the contact strip 11, so that the contact strip 11 is tightly in contact with the side wall of the stop strip 14. At the same time, the contact strip 11 pulls the sealing strip 6 through the connecting rod 10 to be tightly in contact with the side wall of the main door panel 3 away from the stop strip 14, blocking the gap between the secondary door panel 2 and the main door panel 3, and preventing the lock tongue of the lock body 4 from being pushed back into its interior through the gap between the secondary door panel 2 and the main door panel 3, thereby prying open the door.

[0030] like Figures 1-6As shown, in this embodiment, a reset torsion spring 9 is provided inside the rotating groove 7. The reset torsion spring 9 is sleeved on the side wall of the rotating shaft 8, and the upper and lower ends of the reset torsion spring 9 are respectively engaged with the inner top wall of the rotating groove 7 and the top wall of the sealing strip 6. By utilizing the elasticity of the reset torsion spring 9, the sealing strip 6 can rotate outward around the rotating shaft 8. When the main door panel 3 is in the open state, the sealing strip 6 and the secondary door panel 2 are in a mutually perpendicular state, allowing the sealing strip 6 to leave a certain space and preventing the main door panel 3 from being closed. When the sealing strip 6 blocks the side wall of the main door panel 3, the main door panel 3 cannot be closed. A contact groove 13 is provided on the side wall of the main door panel 3 near the baffle 14, and receiving grooves 12 are provided on both the upper and lower side walls of the main door panel 3. The receiving grooves 12 and the contact grooves 13 are interconnected. The receiving grooves 12 and the contact grooves 13 provide space on the side wall of the main door panel 3 to accommodate the connecting rod 10 and the contact strip 11, allowing the main door panel 3 to contact the side wall of the contact strip 11 when closed, thus facilitating the connection. The contact strip 11 pulls the sealing strip 6 to rotate via the connecting rod 10, achieving the effect of facilitating the sealing structure to fit against the side wall of the main door panel 3. The end of the handle 5 closest to the stop strip 14 that is away from the main door panel 3 corresponds to the side wall of the secondary door panel 2, and the end of the handle 5 furthest from the stop strip 14 that is away from the secondary door panel 2 corresponds to the side wall of the main door panel 3. The handle 5 located outside drives the handle 5 located inside to rotate 90 degrees synchronously, so that the handle 5 located inside is offset from the secondary door panel 2, opening the main door panel 3. Since the handles 5 at both ends of the lock body 4 can only rotate synchronously in the unlocked state, when the handle 5 located outside rotates, the handle 5 located inside will not participate in the rotation. Therefore, when the sealing structure is disassembled, the bolt on the lock body 4 is pushed into its interior. By pulling the handle 5 located outside outward, when the main door panel 3 is opened, the handle 5 located inside will contact the side wall of the secondary door panel 2, locking the position of the main door panel 3 and preventing the main door panel 3 from being opened, further improving the anti-theft effect of the door.

[0031] The specific working method is as follows: by rotating the main door panel 3, the lock body 4 is engaged with the side wall of the secondary door panel 2. During the rotation, the side wall of the main door panel 3 is in contact with the side wall of the contact strip 11, so that the contact strip 11 is in close contact with the side wall of the stop strip 14. At the same time, the contact strip 11 pulls the sealing strip 6 through the connecting rod 10 to be in close contact with the side wall of the main door panel 3 away from the stop strip 14, blocking the gap between the secondary door panel 2 and the main door panel 3, and preventing the lock tongue of the lock body 4 from being pushed back into its interior through the gap between the secondary door panel 2 and the main door panel 3, thereby prying open the door.

[0032] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. An integrated anti-theft and anti-pry aluminum protective door and window, comprising a door frame (1), a secondary door panel (2) rotatably mounted on the inner wall of the door frame (1) via hinges, a main door panel (3) rotatably mounted on the inner side wall of the door frame (1) via hinges, a lock body (4) fixedly mounted on the side wall of the main door panel (3), and handles (5) provided on both the front and rear side walls of the lock body (4), characterized in that: The door frame (1) is provided with a sealing structure inside, the sealing structure including; A baffle (14) is fixedly installed on the side wall of the sub-door panel (2), and the baffle (14) is located at the end closest to the interior. Rotating groove (7), there are two rotating grooves (7), the two rotating grooves (7) are opened on the upper and lower side walls inside the door frame (1), the rotating shaft (8) is rotatably installed inside the two rotating grooves (7), and a sealing strip (6) is fixedly installed on the side wall of the two rotating shafts (8) that are close to each other, and the sealing strip (6) is aligned with the position of the baffle (14); Contact strip (11) is set inside the door frame (1). The contact strip (11) is attached to the side wall of the baffle (14). Connecting rods (10) are rotatably installed on both the upper and lower side walls of the contact strip (11). The two connecting rods (10) are respectively fixedly installed on the upper and lower ends of the side wall of the sealing strip (6).

2. The integrated anti-theft and anti-pry aluminum protective door and window according to claim 1, characterized in that: The side wall of the sub-door panel (2) near the main door panel (3) is clamped to the inner wall of the door frame (1) by a snap-fit ​​structure. The lock tongue on the lock body (4) is clamped to the side wall of the sub-door panel (2) and the two handles (5) are respectively clamped to the two ends of the lock rod inside the lock body (4).

3. The integrated anti-theft and anti-pry aluminum protective door and window according to claim 1, characterized in that: The rotating groove (7) is provided with a reset torsion spring (9). The reset torsion spring (9) is sleeved on the side wall of the rotating shaft (8), and the upper and lower ends of the reset torsion spring (9) are respectively engaged with the inner top wall of the rotating groove (7) and the top wall of the sealing strip (6).

4. The integrated anti-theft and anti-pry aluminum protective door and window according to claim 1, characterized in that: A contact groove (13) is provided on the side wall of the main door panel (3) near the baffle (14).

5. The integrated anti-theft and anti-pry aluminum protective door and window according to claim 1, characterized in that: The upper and lower side walls of the main door panel (3) are provided with receiving grooves (12), and the receiving grooves (12) are connected to the contact grooves (13).

6. The integrated anti-theft and anti-pry aluminum protective door and window according to any one of claims 1-5, characterized in that: The end of the handle (5) near the baffle (14) away from the main door panel (3) corresponds to the side wall of the sub-door panel (2), and the end of the handle (5) away from the baffle (14) away from the sub-door panel (2) corresponds to the side wall of the main door panel (3).