Multi-point lock for doors and windows

Abstract

The utility model relates to the technical field of locks, in particular to a multi-point lock for doors and windows, which comprises a first inverted-L-shaped upper lock frame mounted at the left upper corner end of a door frame, a second inverted-L-shaped upper lock frame mounted at the right upper corner end of the door frame, a third L-shaped lower lock frame mounted at the left bottom corner end of the door frame and a fourth inverted-L-shaped lower lock frame mounted at the right bottom corner end of the door frame. Forming a corner end bracket for the door and window frame; a first lock point is mounted below a vertical part of a first inverted L-shaped upper lock frame of the door frame; a second lock point is mounted below the first lock point on the left side of the door frame; a locking device is mounted below the second locking point; a third lock point is installed on the upper portion of the vertical portion of a third L-shaped lower lock frame of the door frame. A fourth locking point is installed in the middle of the bottom edge end of the door frame, and an L-shaped four-locking-point hardware mechanism is formed. The overall balance of the door and window frame can be improved, the wind pressure resistance of the door and window frame is greatly improved, the frame-shaped sealing strips are installed between the door and window frame, and the air tightness of the door and window frame is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of locks, in particular to a multi-point lock for doors and windows. Background Art

[0002] With the development of society, traditional doors and windows generally use iron frames. After a long period of use, iron frames will become rusty and greasy. Aluminum alloy frame structures are widely used due to their flexible and diverse designs, quick assembly and disassembly, convenient future expansion and maintenance, affordable cost, and low carbon and environmental protection. Various industrial aluminum profile products are widely used, such as aluminum profile frames, which are gradually replacing traditional iron frames. However, in actual use, there are concerns about the durability of aluminum profile frames.

[0003] Considering the safety and security of doors and windows, when designing locks, consider the size of the door or window and decide whether to use a single-point or multi-point lock. Locking points are devices used in door and window hardware to secure the door or window sash and prevent unauthorized opening. Their primary function is to ensure that doors and windows remain securely in place when closed, preventing them from being pried open or pushed open, thereby improving their security.

[0004] With the development of urbanization in today's society, more and more high-rise buildings are everywhere in cities. When using locks on doors and windows in high-rise buildings, they need better sealing and stronger wind pressure resistance. Therefore, traditional lock hardware is being innovated. Summary of the Invention

[0005] The purpose of the utility model is to provide a multi-point lock for doors and windows in view of the defects and shortcomings of the prior art.

[0006] The multi-point lock for doors and windows described in the utility model comprises a first inverted L-shaped upper locking frame installed at the upper left corner end of the door frame, a second inverted L-shaped upper locking frame installed at the upper right corner end of the door frame, a third L-shaped lower locking frame installed at the bottom left corner end of the door frame, and a fourth inverted L-shaped lower locking frame installed at the bottom right corner end of the door frame, forming a corner end bracket for door and window frames;

[0007] A first locking point is installed below the vertical portion of the first inverted L-shaped upper locking frame of the door frame; a second locking point is installed below the first locking point on the left side of the door frame; a locker is installed below the second locking point; and a third locking point is installed above the vertical portion of the third L-shaped lower locking frame of the door frame.

[0008] A fourth locking point is installed in the middle of the bottom edge of the door frame to form an L-shaped four-locking point hardware mechanism.

[0009] Further, a fifth locking point is installed at the lower middle part on the right side of the door frame, a sixth locking point is installed above the fifth locking point, and a four-locking-point hardware mechanism on the door frame forms a six-locking-point hardware mechanism in a U shape.

[0010] Further, an eighth locking point is installed on the horizontal part of the second inverted L-shaped upper locking frame of the door frame, a seventh locking point is installed on the left side of the eighth locking point, and together with the six-locking-point hardware mechanism on the door frame, it forms an eight-locking-point hardware mechanism in a square shape.

[0011] Further, a frame-shaped sealing strip matching the door frame is embedded on the inner side of the door and window.

[0012] After adopting the above structure, the beneficial effects of the present utility model are as follows: The multi-point lock for doors and windows described in the present utility model has a first locking point and a second locking point installed at the upper left part of the door frame, a third locking point installed at the lower part, a lock closer installed between the second locking point and the third locking point, a seventh locking point and an eighth locking point installed at the upper right part of the top surface of the door frame, a sixth locking point and a fifth locking point respectively installed on both sides of the middle of the right side of the door frame, and a fourth locking point installed in the middle of the bottom of the door frame, forming a multi-locking-point hardware mechanism in a square shape; it can improve the overall balance of the door and window frame and greatly improve its wind pressure resistance, and a frame-shaped sealing strip is installed between the door and window frames to ensure its airtightness. Description of the Drawings

[0013] The drawings described here are used to provide a further understanding of the present utility model, form a part of this application, but do not constitute an improper limitation to the present utility model. In the drawings:

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is Figure 1 an enlarged view of part A of

[0016] Figure 3 is Figure 1 an enlarged view of part B of

[0017] Figure 4 is Figure 1 an enlarged view of part C of

[0018] Figure 5 is Figure 1 an enlarged view of part D of

[0019] Description of the Reference Numerals:

[0020] First locking point 1; second locking point 2; third locking point 3; fourth locking point 4; fifth locking point 5; sixth locking point 6; seventh locking point 7; eighth locking point 8; first inverted L-shaped upper locking frame 9; second inverted L-shaped upper locking frame 10; third L-shaped lower locking frame 11; fourth inverted L-shaped lower locking frame 12; lock 13; door frame 14. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0023] like Figure 1 - Figure 5 As shown, the multi-point lock for doors and windows described in this specific embodiment includes a first inverted L-shaped upper lock frame 9 installed at the upper left corner end of the door frame 14, a second inverted L-shaped upper lock frame 10 installed at the upper right corner end of the door frame, a third L-shaped lower lock frame 11 installed at the bottom left corner end of the door frame, and a fourth inverted L-shaped lower lock frame 12 installed at the bottom right corner end of the door frame, forming a corner end bracket for door and window frames;

[0024] A first locking point 1 is installed below the vertical portion of the first inverted L-shaped upper locking frame of the door frame 14; a second locking point 2 is installed below the first locking point on the left side of the door frame; a lock 13 is installed below the second locking point 2; a third locking point 3 is installed above the vertical portion of the third L-shaped lower locking frame of the door frame;

[0025] A fourth locking point 4 is installed in the middle of the bottom end of the door frame to form an L-shaped four-locking point hardware mechanism.

[0026] Furthermore, a fifth locking point 5 is installed at the lower middle part of the right side of the door frame, a sixth locking point 6 is installed above the fifth locking point, and the four-locking point hardware mechanism on the door frame forms a U-shaped six-locking point hardware mechanism.

[0027] Furthermore, an eighth locking point 8 is installed on the horizontal part of the second inverted L-shaped upper locking frame of the door frame, and a seventh locking point 7 is installed on the left side of the eighth locking point, forming an eight-locking point hardware mechanism in the shape of an "mouth" together with the six-locking point hardware mechanism on the door frame.

[0028] Furthermore, a frame-shaped sealing strip that matches the door frame 14 is embedded on the inner side of the door and window.

[0029] The working principle of this utility model is specifically described as follows:

[0030] This design is aimed at the airtightness, balance and wind pressure resistance of doors and windows. The doors and windows of high-rise buildings are subject to large wind pressure, which can easily cause them to deform or lose their airtightness and balance.

[0031] In this design, the doors and windows are integrated with the doorframe, which is mounted in the wall and hinged to the doorframe. A frame-shaped sealing strip is embedded on the inside of the doors and windows, matching the doorframe and ensuring airtightness. The frame-shaped sealing strip should be cleaned and inspected regularly, and replaced if deformed.

[0032] In this design, the first locking point and the second locking point are installed on the upper left side of the door frame, and the third locking point is installed on the lower part, that is, three locking points are installed on one side of the door frame, and a locker is installed between the second locking point and the third locking point.

[0033] Then, install the seventh and eighth locking points (two locking hardware pieces) on the right side of the top surface of the door frame. Install the sixth and fifth locking points on either side of the right middle of the door frame. Finally, install the fourth locking point in the middle of the bottom of the door frame.

[0034] When using a four-point locking mechanism, the first through fourth points form an L-shaped locking mechanism. This fully meets the needs of ordinary doors and windows, where airtightness and wind pressure resistance are not critical. This L-shaped locking mechanism ensures a stable and balanced closing of the door or window.

[0035] If you want to further improve its air tightness requirements and wind pressure resistance, add two more locking points, the sixth locking point and the fifth locking point on the right side of the door frame to form a U-shaped locking point mechanism, which can further ensure the air tightness requirements and wind pressure resistance requirements.

[0036] To further enhance airtightness and wind resistance, seventh and eighth locking points are added to the top of the door frame, forming a "mouth"-shaped locking mechanism. This creates an integrated framework, achieving optimal airtightness and wind resistance. Therefore, different locking hardware can be selected to meet different airtightness and wind resistance requirements.

[0037] In this design, when installing the locking points for the door and window sashes, different numbers of locking points are selected based on the height of the door or window. The locking points, also known as locking points, are key components in creating a seal when the thermally insulated aluminum door or window is locked. When the door or window is locked, the locking points tightly engage with the lock base, working together with the hinges or sliding braces to generate strong sealing pressure, causing the sealing strips to elastically deform, thereby ensuring excellent sealing performance. For example, for doors and windows over 1500mm in height, it is recommended to use six-locking-point hardware for better sealing.

[0038] In this design, multiple locking points effectively enhance the security of Class A doors. Even if one locking point is compromised, the remaining points can still hold the door closed, delaying intrusion and providing valuable time for security. Furthermore, multiple locking points enhance the door's overall structural strength, improving its resistance to vandalism.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A multi-point lock for doors and windows, characterized by: It includes a first inverted L-shaped upper locking frame installed at the upper left corner of the door frame, a second inverted L-shaped upper locking frame installed at the upper right corner of the door frame, a third L-shaped lower locking frame installed at the bottom left corner of the door frame, and a fourth inverted L-shaped lower locking frame installed at the bottom right corner of the door frame, forming a corner bracket for door and window frames; A first locking point is installed below the vertical portion of the first inverted L-shaped upper locking frame of the door frame; a second locking point is installed below the first locking point on the left side of the door frame; a locker is installed below the second locking point; and a third locking point is installed above the vertical portion of the third L-shaped lower locking frame of the door frame. A fourth locking point is installed in the middle of the bottom edge of the door frame to form an L-shaped four-locking point hardware mechanism.

2. A multi-point lock for doors and windows according to claim 1, characterized in that: The fifth locking point is installed at the lower middle part of the right side of the door frame, the sixth locking point is installed above the fifth locking point, and the four-locking-point hardware mechanism on the door frame forms a U-shaped six-locking-point hardware mechanism.

3. The multi-point lock for doors and windows according to claim 1, characterized in that: An eighth locking point is installed on the horizontal part of the second inverted L-shaped upper locking frame of the door frame, and a seventh locking point is installed on the left side of the eighth locking point, forming an eight-locking point hardware mechanism in the shape of an "mouth" together with the six-locking point hardware mechanism on the door frame.

4. The multi-point lock for doors and windows according to claim 1, characterized in that: A frame-shaped sealing strip that matches the door frame is embedded on the inner side of the door and window.

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