A fully automatic hook lock for a mobile door

By adopting a symmetrical pull rod transmission structure in the hook lock, the transmission design of the hook lock is simplified, the production cost is reduced, and the anti-pry effect is improved, solving the problems of complex structure and high cost of existing hook locks.

CN224496090UActive Publication Date: 2026-07-14ZHONGSHAN AVIS SECURITY TECHNOLOGY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHONGSHAN AVIS SECURITY TECHNOLOGY CO LTD
Filing Date
2025-08-13
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing hook locks have complex structures, high production costs, and poor anti-pry performance.

Method used

The lock employs a symmetrical arrangement of a first pull rod and a second pull rod. A drive assembly drives the first and second pull rods to rotate, which in turn pushes the first hook and the second hook to extend or retract into the lock housing, thereby unlocking and locking. The structure is simple and has a good anti-pry effect.

Benefits of technology

The transmission structure has been simplified, production costs have been reduced, and the anti-pry effect has been improved.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224496090U_ABST
    Figure CN224496090U_ABST
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Abstract

The utility model discloses a full -automatic hook lock for mobile door relates to lock technical field, including the lock shell and setting in the drive assembly, transmission assembly and hook body subassembly of lock shell, transmission assembly includes first pull rod and second pull rod, and first pull rod with second pull rod all rotatablely connect in the lock shell, hook body subassembly includes first hook body and second hook body, and one end of first hook body is rotatablely connected in the lock shell through first pivot, and one end of second hook body is rotatablely connected in the lock shell through second pivot, and first pull rod connects the middle part of first hook body, and second pull rod connects the middle part of second hook body, when drive assembly drives first pull rod and second pull rod rotate, first pull rod and second pull rod respectively push first hook body and second hook body and extend or retract into the lock shell, the utility model discloses simple structure, and transmission structure and principle are also simple, and good effect of anti -prying.
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Description

Technical Field

[0001] This utility model relates to the field of lock technology, specifically a fully automatic hook lock for sliding doors. Background Technology

[0002] Hook locks are locks used for sliding doors and windows.

[0003] Existing hook locks are usually single-hook locks, meaning they have only one hook, which is not good in terms of pulling force and anti-pry. There are also some double-hook locks, but the transmission structure of existing double-hook locks is more complex, resulting in complex structure and high production cost. Utility Model Content

[0004] This utility model discloses a fully automatic hook lock for sliding doors to solve the technical problem of complex structure.

[0005] To solve the above-mentioned technical problems, the present invention proposes the following optimized technical solution:

[0006] A fully automatic hook lock for a sliding door includes a lock housing and a drive assembly, a transmission assembly, and a hook assembly disposed within the lock housing. The transmission assembly includes a first pull rod and a second pull rod, both of which are rotatably connected within the lock housing. The drive assembly drives the first pull rod and the second pull rod to rotate. The hook assembly includes a first hook body and a second hook body. One end of the first hook body is rotatably connected within the lock housing via a first pivot, and one end of the second hook body is rotatably connected within the lock housing via a second pivot. The first pull rod is connected to the middle portion of the first hook body, and the second pull rod is connected to the middle portion of the second hook body.

[0007] When the drive assembly drives the first pull rod and the second pull rod to rotate, the first pull rod and the second pull rod respectively push the first hook and the second hook to extend or retract into the lock housing.

[0008] Furthermore, the drive assembly includes a drive member, a drive gear, and a driven gear. The drive member is connected within the lock housing and is connected to the drive gear. The drive gear meshes with the driven gear, and the driven gear is used to drive the first pull rod and the second pull rod to rotate.

[0009] Furthermore, the transmission assembly also includes a bushing, which is fitted onto the shaft of the lock housing, and both the first pull rod and the driven gear are fitted onto the bushing.

[0010] Furthermore, the second pull rod engages with the first pull rod.

[0011] Furthermore, the first pull rod is provided with a first extension, the first extension is connected to a first connecting shaft, the first hook body is provided with a first groove in the middle, and the first connecting shaft is movably connected in the first groove.

[0012] Furthermore, the second pull rod is provided with a second extension, the second extension is connected to a second connecting shaft, the middle part of the second hook body is provided with a second groove, and the second connecting shaft is movably connected in the second groove.

[0013] Furthermore, the transmission assembly also includes a torsion spring, the two ends of which are respectively fitted onto the second extension and the second rotating shaft.

[0014] The present invention has the following advantages over the prior art:

[0015] The hook lock provided by this utility model adopts a symmetrical arrangement of a first pull rod and a second pull rod, and a symmetrical arrangement of a first hook body and a second hook body. The first pull rod and the second pull rod are driven to rotate by a drive component. The first pull rod and the second pull rod respectively drive the first hook body and the second hook body to extend or retract into the lock shell, thereby realizing the locking and unlocking. The structure is simple, the transmission structure and principle are also simple, and the anti-pry effect is good. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a top view of the inside of the lock case of this utility model.

[0018] Figure 3 This is a schematic diagram of the internal structure of the lock case of this utility model. Figure 1 .

[0019] Figure 4 This is a schematic diagram of the internal structure of the lock case of this utility model. Figure 2 .

[0020] In the diagram: 1. Lock housing; 2. First pull rod; 3. Second pull rod; 4. First hook body; 5. Second hook body; 6. First rotating shaft; 7. Second rotating shaft; 8. Driving component; 9. Driving gear; 10. Driven gear; 11. Bushing; 12. First extension; 13. First connecting shaft; 14. First slot; 15. Second extension; 16. Second connecting shaft; 17. Second slot; 18. Torsion spring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] See Figures 1-4 A fully automatic hook lock for a sliding door includes a lock housing 1 and a drive assembly, a transmission assembly, and a hook assembly disposed within the lock housing 1. The transmission assembly includes a first pull rod 2 and a second pull rod 3, both of which are rotatably connected within the lock housing 1. The drive assembly is used to drive the first pull rod 2 and the second pull rod 3 to rotate. The hook assembly includes a first hook 4 and a second hook 5. One end of the first hook 4 is rotatably connected within the lock housing 1 via a first rotating shaft 6, and one end of the second hook 5 is rotatably connected within the lock housing 1 via a second rotating shaft 7. The first pull rod 2 is connected to the middle portion of the first hook 4, and the second pull rod 3 is connected to the middle portion of the second hook 5.

[0023] When the drive assembly drives the first pull rod 2 and the second pull rod 3 to rotate, specifically, the rotation direction of the first pull rod 2 is opposite to the rotation direction of the second pull rod 3. The first pull rod 2 and the second pull rod 3 respectively push the middle of the first hook body 4 and the second hook body 5, so that the other end of the first pull rod 2 and the other end of the second pull rod 3 extend or retract into the lock case 1, thereby realizing locking and unlocking.

[0024] In this embodiment, the driving assembly includes a driving component 8, a driving gear 9, and a driven gear 10. The driving component 8 is a motor, which is connected inside the lock housing 1. The driving component 8 is connected to the driving gear 9, specifically, the output shaft of the motor is connected to the center of the driving gear 9. The driving gear 9 meshes with the driven gear 10, and the driven gear 10 is used to drive the first pull rod 2 and the second pull rod 3 to rotate, specifically, the rotation direction of the first pull rod 2 is opposite to the rotation direction of the second pull rod 3.

[0025] In this embodiment, the transmission assembly further includes a bushing 11, which is fitted onto the shaft of the lock housing 1. The first pull rod 2 and the driven gear 10 are both fitted onto the bushing 11. When the driven gear 10 rotates, it drives the bushing 11 to rotate, which in turn drives the first pull rod 2 to rotate, thereby achieving the rotation of the first pull rod 2.

[0026] In this embodiment, the second pull rod 3 engages with the first pull rod 2. When the first pull rod 2 rotates, since the first pull rod 2 is engaged with the second pull rod 3, the first pull rod 2 will drive the second pull rod 3 to rotate. At this time, the rotation direction of the first pull rod 2 is opposite to the rotation direction of the second pull rod 3.

[0027] In this embodiment, the first pull rod 2 is provided with a first extension 12, the first extension 12 is connected to a first connecting shaft 13, and the first hook body 4 is provided with a first groove 14 in the middle, and the first connecting shaft 13 is movably connected in the first groove 14. When the first pull rod 2 rotates, the first extension 12 pushes the first hook body 4 to extend or retract into the lock housing 1 through the first connecting shaft 13.

[0028] In this embodiment, the second pull rod 3 is provided with a second extension 15, the second extension 15 is connected to a second connecting shaft 16, and the second hook body 5 is provided with a second groove 17 in the middle, and the second connecting shaft 16 is movably connected in the second groove 17. When the second pull rod 3 rotates, the second extension 15 pushes the second hook body 5 to extend or retract into the lock housing 1 through the second connecting shaft 16.

[0029] In this embodiment, the transmission assembly further includes a torsion spring 18, with its two ends respectively fitted onto the second extension 15 and the second rotating shaft 7. When the second hook 5 extends out of the lock housing 1, the torsion spring 18 is subjected to torque. Therefore, when the second hook 5 retracts into the lock housing 1, the reaction force of the torsion spring 18 helps the second hook 5 retract into the lock housing 1.

[0030] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A fully automatic hook lock for sliding doors, characterized in that, The device includes a lock housing and a drive assembly, a transmission assembly, and a hook assembly disposed within the lock housing. The transmission assembly includes a first pull rod and a second pull rod, both of which are rotatably connected within the lock housing. The drive assembly is used to drive the first pull rod and the second pull rod to rotate. The hook assembly includes a first hook and a second hook. One end of the first hook is rotatably connected within the lock housing via a first pivot, and one end of the second hook is rotatably connected within the lock housing via a second pivot. The first pull rod is connected to the middle portion of the first hook, and the second pull rod is connected to the middle portion of the second hook. When the drive assembly drives the first pull rod and the second pull rod to rotate, the first pull rod and the second pull rod respectively push the first hook and the second hook to extend or retract into the lock housing.

2. The fully automatic hook lock for a sliding door according to claim 1, characterized in that, The drive assembly includes a drive member, a drive gear, and a driven gear. The drive member is connected inside the lock housing and is connected to the drive gear. The drive gear meshes with the driven gear, and the driven gear is used to drive the first pull rod and the second pull rod to rotate.

3. The fully automatic hook lock for a sliding door according to claim 2, characterized in that, The transmission assembly also includes a bushing, which is fitted onto the shaft of the lock housing, and the first pull rod and the driven gear are both fitted onto the bushing.

4. The fully automatic hook lock for a sliding door according to claim 2, characterized in that, The second pull rod engages with the first pull rod.

5. A fully automatic hook lock for a sliding door according to claim 1, characterized in that, The first pull rod is provided with a first extension, the first extension is connected to a first connecting shaft, the first hook body is provided with a first groove in the middle, and the first connecting shaft is movably connected in the first groove.

6. A fully automatic hook lock for a sliding door according to claim 1, characterized in that, The second pull rod is provided with a second extension, the second extension is connected to a second connecting shaft, the middle part of the second hook body is provided with a second groove, and the second connecting shaft is movably connected to the second groove.

7. A fully automatic hook lock for a sliding door according to claim 6, characterized in that, The transmission assembly also includes a torsion spring, with its two ends respectively fitted onto the second extension and the second rotating shaft.