Lifting transmission latch hook structure

By designing and improving the transmission lock hook structure, the safety risks and aesthetic problems caused by exposed locking points were solved, achieving the concealment of the lock hook and improving the safety and aesthetics of doors and windows.

CN224173860UActive Publication Date: 2026-04-28GUANGDONG MOSEN DOOR & WINDOW SYST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGDONG MOSEN DOOR & WINDOW SYST CO LTD
Filing Date
2025-05-19
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing locking points of sliding doors and windows are exposed, posing a safety risk and being unsightly.

Method used

Design a lifting transmission lock hook structure, including a main control lock box, a secondary lock box and a transmission bar. The lock hook can extend or retract into the channel opening and is connected to the lock hook through the transmission bar to avoid exposure. The transmission uses a rack and pinion gear meshing to increase safety and aesthetics.

Benefits of technology

The lock hooks are concealed, preventing bumps and damage, improving safety and aesthetics, and enhancing the sealing performance of doors and windows.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224173860U_ABST
    Figure CN224173860U_ABST
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Abstract

The utility model relates to the technical field of door and window locks, in particular to a lifting transmission latch hook structure. Comprising a frame strip and a lockset, the lockset comprises a main control lock box and an auxiliary lock box, the main control lock box and the auxiliary lock box are arranged on the frame strip, a transmission strip is arranged between the main control lock box and the auxiliary lock box, and the transmission strip is arranged on the frame strip in an up-down sliding mode; the auxiliary lock box is provided with a rotatable lock hook, and the frame strip is provided with a channel opening matched with the auxiliary lock box. The transmission strip is connected with the lock hook in a matched mode, so that the lock hook can stretch out of the channel opening to be connected with a door and window lock hole or retract into the auxiliary lock box. The main control lock box is reasonable in structure, the main control lock box is synchronously connected with the lock hook in the auxiliary lock box through the transmission strip, so that the lock hook can stretch out of the channel opening to be connected with a lock hole in a door and window lock hole, the lock hook can retract and be hidden in the auxiliary lock box, injury caused by collision to people is avoided, and the safety and the attractiveness of a door and a window can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of door and window lock technology, specifically to a lifting transmission lock hook structure. Background Technology

[0002] Currently, the main products in the sliding door and window market are ordinary sliding doors and windows and lift-up sliding doors. As the country requires reducing building energy consumption, more and more sliding doors and windows are adopting lift-up sliding doors. Compared with ordinary sliding doors, lift-up sliding doors have better sound insulation, heat insulation, waterproofing, and sealing performance. However, since the locking points of the lift-up sliding doors on the market are exposed during use, they are easy to scratch or bump people, posing a safety risk. Therefore, the existing technology still needs to be improved and developed. Utility Model Content

[0003] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a lifting transmission lock hook structure that is structurally reasonable and makes door and window locks safe and aesthetically pleasing.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] The present invention discloses a lifting transmission lock hook structure, comprising a frame and a lock. The lock includes a main control lock box and a secondary lock box, which are respectively disposed on the frame. A transmission bar is provided between the main control lock box and the secondary lock box, and the transmission bar is slidably disposed on the frame. The secondary lock box is provided with a rotatable lock hook, and the frame is provided with a channel opening that matches the secondary lock box. The transmission bar is connected to the lock hook, so that the lock hook can extend out of the channel opening to connect to the keyhole of a door or window, or retract into the secondary lock box.

[0006] According to the above scheme, the secondary lock box is provided with an action cavity, and one end of the lock hook is provided with a first bushing. The first bushing is located in the action cavity and is rotatably connected to the secondary lock box through a rotating shaft, so that the lock hook can extend out of the channel or retract into the action cavity.

[0007] According to the above scheme, the action cavity is provided with a rack, the rack is provided with a first tenon, the transmission bar is provided with a first rivet eye, the first tenon is inserted into the first rivet eye so that the rack can slide up and down along the action cavity; the first bushing is provided with indexing teeth, and the rack is meshed with the indexing teeth.

[0008] According to the above scheme, the side of the secondary lock box opposite to the frame bar is set with an opening, and a slide is opened on the transmission bar. The slide is matched with the channel opening and the action cavity.

[0009] According to the above scheme, a plastic gasket is provided in the action cavity. The plastic gasket is located between the side wall of the rack and the inner wall of the action cavity, and the plastic gasket is fixedly connected to the secondary lock box by a fastener.

[0010] According to the above scheme, the main control lock box is located in the middle of the frame bar, and the upper and lower parts of the frame bar are provided with auxiliary lock boxes. The main control lock box is connected to the lock hooks on the two auxiliary lock boxes respectively through the transmission bar.

[0011] According to the above scheme, the main control lock box is provided with a crank and a connecting rod. The crank is rotatably connected to the main control lock box through a second bushing. The crank is rotatably connected to the first end of the connecting rod. The transmission bar is provided with a second rivet eye. The second end of the connecting rod is provided with a second tenon. The second tenon is inserted into the second rivet eye so that the connecting rod and the transmission bar are connected.

[0012] According to the above scheme, the main control lock box is also equipped with a locker, the locker is equipped with a third tenon, and the transmission bar is equipped with a third rivet eye.

[0013] The beneficial effects of this utility model are as follows: This utility model has a reasonable structure. The main control lock box is synchronously connected to the lock hook in the secondary lock box through the transmission bar, so that the lock hook can extend out of the channel opening to connect to the door and window keyhole. The lock hook can be retracted and hidden in the secondary lock box to avoid injury to people from bumping into it, thereby improving safety and the aesthetics of the doors and windows. Attached Figure Description

[0014] Figure 1 This is a simplified schematic diagram of the overall structure of this utility model;

[0015] Figure 2 yes Figure 1 Enlarged structural diagram of section A in the middle;

[0016] Figure 3 yes Figure 1 Schematic diagram of the cross-sectional structure of section A in the middle;

[0017] Figure 4 yes Figure 1 Schematic diagram of the internal structure of section B.

[0018] In the picture:

[0019] 1. Frame bar; 2. Main lock box; 3. Secondary lock box; 4. Plastic gasket; 11. Transmission bar; 12. Channel opening; 13. First rivet eye; 14. Slide rail; 15. Second rivet eye; 16. Third rivet eye; 21. Crank; 22. Connecting rod; 23. Second bushing; 24. Second tenon; 25. Locking device; 26. Third tenon; 31. Lock hook; 32. Actuating cavity; 33. First bushing; 34. Rack; 35. First tenon; 36. Indexing gear. Detailed Implementation

[0020] The technical solution of this utility model will be described below with reference to the accompanying drawings and embodiments.

[0021] like Figure 1-4As shown, the lifting transmission lock hook 31 structure of this utility model includes a frame 1 and a lock. The lock includes a main control lock box 2 and a secondary lock box 3, which are respectively disposed on the frame 1. A transmission bar 11 is provided between the main control lock box 2 and the secondary lock box 3, and the transmission bar 11 is slidably disposed on the frame 1. The secondary lock box 3 is provided with a rotatable lock hook 31, and the frame 1 is provided with a channel opening 12 that matches the secondary lock box 3. The transmission bar 11 and the lock hook 31 are connected in cooperation, so that the lock hook 31 can extend out of the channel opening 12 to connect to the door or window lock hole, or retract into the secondary lock box 3. It can be understood that the main control lock box 2 is equipped with a door or window handle, which is connected to the transmission bar 11, driving the transmission bar 11 to slide up and down along the frame 1, thereby causing the lock hook 31 to rotate on the secondary lock box 3. Specifically, the lock hook 31 is rotatably connected to the secondary lock box 3. When the door or window is closed, the lock hook 31 rotates and passes through the passage opening 12 to lock onto the door or window keyhole. When the door or window is opened, the lock hook 31 can be retracted and stored in the secondary lock box 3 to prevent the lock hook 31 from being exposed and causing bumps and damage, thereby improving security and the aesthetics of the door or window.

[0022] Furthermore, the secondary lock box 3 is provided with an actuating cavity 32, and one end of the locking hook 31 is provided with a first bushing 33. The first bushing 33 is located inside the actuating cavity 32 and is rotatably connected to the secondary lock box 3 via a rotating shaft, thereby allowing the locking hook 31 to extend out of the channel opening 12 or retract into the actuating cavity 32. The secondary lock box 3 has a hollow structure, and its internal actuating cavity 32 is used to house the first bushing 33 and the rotating shaft, so that the locking hook 31 can extend out of the channel opening 12 or be stored in the actuating cavity 32.

[0023] Preferably, the actuating cavity 32 is provided with a rack 34, the rack 34 is provided with a first tenon 35, and the transmission bar 11 is provided with a first rivet eye 13. The first tenon 35 is inserted into the first rivet eye 13, so that the rack 34 can slide up and down along the actuating cavity 32. The first bushing 33 is provided with an indexing tooth 36, and the rack 34 is engaged with the indexing tooth 36. The transmission bar 11 is connected to the first tenon 35 on the rack 34 through the first rivet eye 13, so that the transmission bar 11 and the rack 34 are linked. When the rack 34 slides up and down along the actuating cavity 32, the engaged indexing tooth 36 drives the first bushing 33 and the hook lock 31 to rotate, so that the hook lock 31 can extend out of the channel opening 12 or be stored in the secondary lock box 3. Specifically, the locking hook 31 is rotatably mounted in the secondary lock box 3 via the first bushing 33. The rotation angle of the locking hook 31 is less than 90°. That is, when the locking hook 31 passes through the passage 12 and connects with the door and window lock eye latch, the locking hook 31 is at the 3 o'clock / 9 o'clock position. When the locking hook 31 rotates to the 6 o'clock position, it passes through the passage 12 and is stored in the action cavity 32.

[0024] The secondary lock box 3 has an opening on the side opposite to the frame strip 1. The transmission bar 11 has a slide rail 14, which is paired with the channel opening 12 and the actuating cavity 32. It can be understood that the frame strip 1 is the side frame of the door or window, that is, the channel opening 12 is opened horizontally. The transmission bar 11 is slidably arranged between the main control lock box 2, the secondary lock box 3 and the frame strip 1. The transmission bar 11 needs to be provided with a slide rail 14 to avoid the movement of the lock hook 31, so that the lock hook 31 can pass through the slide rail 14 and the channel opening 12 to extend or retract into the secondary lock box 3. When the lock hook 31 is locked on the door or window keyhole, the transmission bar 11 can still slide up and down.

[0025] A plastic gasket 4 is provided inside the actuating cavity 32. The plastic gasket 4 is located between the side wall of the rack 34 and the inner wall of the actuating cavity 32, and is fixedly connected to the secondary lock box 3 by a fastener. The plastic gasket 4 is used to reduce the sliding friction between the rack 34 and the actuating cavity 32, thereby making the movement of the rack 34 and the locking hook 31 smoother.

[0026] The main lock box 2 is located in the middle of the frame strip 1. Secondary lock boxes 3 are located at both the upper and lower parts of the frame strip 1, and the main lock box 2 is connected to the lock hooks 31 on the two secondary lock boxes 3 via a transmission strip 11. Preferably, the two secondary lock boxes 3 are symmetrically arranged above and below the main lock box 2, making the connection between the lock and the door / window frame tighter when the door / window is closed. Furthermore, the main lock box 2 being located in the middle of the frame strip 1 makes it easier for the user to operate the door / window handles on the main lock box 2.

[0027] The main control lock box 2 is equipped with a crank 21 and a connecting rod 22. The crank 21 is rotatably connected to the main control lock box 2 via a second bushing 23. The first end of the crank 21 is rotatably connected to the first end of the connecting rod 22. The transmission bar 11 is provided with a second rivet eye 15, and the second end of the connecting rod 22 is provided with a second tenon 24. The second tenon 24 is inserted into the second rivet eye 15, thereby connecting the connecting rod 22 and the transmission bar 11. Preferably, the main control lock box 2 is equipped with a crank 21 and a connecting rod 22 to drive the transmission bar 11. The second bushing 23 is provided with a square socket for mounting a door and window wrench. The user drives the crank 21 to rotate by connecting the wrench to the second bushing 23. The crank 21 drives the transmission bar 11 to slide up and down through the connecting rod 22, thereby synchronously driving the locking hooks 31 on the two auxiliary lock boxes 3 to extend or retract.

[0028] The main control lock box 2 also includes a locking device 25, which has a third tenon 26 and a third rivet eye 16 on the transmission bar 11. It can be understood that the locking device 25, used for door and window locking, can lock the door or window by restricting the sliding of the transmission bar 11. Simply put, the locking device 25 can drive the third tenon 26 to insert into the third rivet eye 16, preventing the transmission bar 11 from sliding up and down, thus locking the lock hook 31 with the door / window keyhole and serving as an anti-theft lock. The structure of the locking device 25 can be replaced by existing conventional methods, and its principle is no different from existing technology, so it will not be described in detail here.

[0029] The above description is only a preferred embodiment of the present utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the claims of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A lifting transmission lock hook (31) structure, comprising a frame (1) and a lock, characterized in that: The lock includes a main control lock box (2) and a secondary lock box (3). The main control lock box (2) and the secondary lock box (3) are respectively set on the frame strip (1). A transmission strip (11) is provided between the main control lock box (2) and the secondary lock box (3). The transmission strip (11) is slidably set on the frame strip (1). The secondary lock box (3) is provided with a rotatable lock hook (31). The frame strip (1) is provided with a channel opening (12) that matches the secondary lock box (3). The transmission strip (11) and the lock hook (31) are connected in cooperation, so that the lock hook (31) can extend out of the channel opening (12) to connect to the door and window lock hole, or retract into the secondary lock box (3).

2. The lifting transmission lock hook (31) structure according to claim 1, characterized in that: The secondary lock box (3) is provided with an action cavity (32), and one end of the lock hook (31) is provided with a first bushing (33). The first bushing (33) is located in the action cavity (32), and the first bushing (33) is rotatably connected to the secondary lock box (3) through a rotating shaft, so that the lock hook (31) can extend out of the channel opening (12) or retract into the action cavity (32).

3. The lifting transmission lock hook (31) structure according to claim 2, characterized in that: The actuating cavity (32) is provided with a rack (34), the rack (34) is provided with a first tenon (35), the transmission bar (11) is provided with a first rivet eye (13), the first tenon (35) is inserted into the first rivet eye (13) so that the rack (34) can slide up and down along the actuating cavity (32); the first bushing (33) is provided with an indexing tooth (36), and the rack (34) is meshed with the indexing tooth (36).

4. The lifting transmission lock hook (31) structure according to claim 3, characterized in that: The secondary lock box (3) is open on the side opposite to the frame strip (1), and a slide (14) is provided on the transmission strip (11). The slide (14) is paired with the channel opening (12) and the action cavity (32).

5. The lifting transmission lock hook (31) structure according to claim 4, characterized in that: The actuation cavity (32) is provided with a plastic gasket (4), which is located between the side wall of the rack (34) and the inner wall of the actuation cavity (32), and the plastic gasket (4) is fixedly connected to the secondary lock box (3) by a fastener.

6. The lifting transmission lock hook (31) structure according to claim 1, characterized in that: The main control lock box (2) is located in the middle of the frame strip (1). The upper and lower parts of the frame strip (1) are provided with auxiliary lock boxes (3). The main control lock box (2) is connected to the lock hooks (31) on the two auxiliary lock boxes (3) respectively through the transmission strip (11).

7. The lifting transmission lock hook (31) structure according to claim 1, characterized in that: The main control lock box (2) is provided with a crank (21) and a connecting rod (22). The crank (21) is rotatably connected to the main control lock box (2) through a second bushing (23). The first end of the crank (21) is rotatably connected to the first end of the connecting rod (22). The transmission bar (11) is provided with a second rivet eye (15). The second end of the connecting rod (22) is provided with a second tenon (24). The second tenon (24) is inserted into the second rivet eye (15) so that the connecting rod (22) and the transmission bar (11) are connected.

8. The lifting transmission lock hook (31) structure according to claim 7, characterized in that: The main control lock box (2) is also equipped with a locker (25), the locker (25) is equipped with a third tenon (26), and the transmission bar (11) is equipped with a third rivet (16).