一种防盗门锁及副锁结构

By introducing a linkage component between a deflector block and a secondary slider into the door lock structure, the locking stroke of the secondary lock cylinder is adjusted, solving the problem of fixed resistance in existing door locks and achieving a balance between flexible resistance adjustment and protective strength.

CN224514949UActive Publication Date: 2026-07-17ZHEJIANG WUYI WANLONG DOOR IND CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG WUYI WANLONG DOOR IND CO LTD
Filing Date
2025-08-05
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing door locks and secondary lock structures have fixed resistance when unlocking and locking, which cannot be adjusted according to actual needs, resulting in problems such as excessive resistance or insufficient protection.

Method used

By setting up a linkage component between the deflection block and the secondary slider, the movement stroke of the secondary slider can be controlled by the adjustable linkage component. The resistance to locking and unlocking can be adjusted by adjusting the distance between the linkage component and the deflection block, and the locking stroke of the secondary locking pin can be increased or decreased to adjust the resistance.

Benefits of technology

It allows for adjustment of locking and unlocking resistance as needed, avoiding excessive resistance while ensuring protection strength, thus providing a flexible anti-theft door lock structure.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224514949U_ABST
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Abstract

本申请公开了一种防盗门锁及副锁结构,其属于锁具技术领域。包括:主锁体与副锁体,其特征在于:还包括:锁钩,滑动安装在主锁体;副滑块,滑动安装在副锁体内;偏转块,转动安装在副锁体内;联动组件包括:调整槽,开设在偏转块上,沿偏转块转动轴线的径向延伸;调整滑块,滑动安装在调整槽内;连接头,转动设置在调整滑块上,连接头嵌入到横向槽内运动。本申请的有益效果在于提供了一种防盗门锁及副锁结构,通过设置的偏转块与副滑块,通过控制联动组件的位置,调整副滑块的运动行程,通过减小联动组件与偏转块偏转轴线的间距,减小阻力。
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Claims

1. A security door lock and deadbolt structure comprising: The main lock body (10) and the secondary lock body (11) are characterized in that: A type of anti-theft door lock and its auxiliary lock structure also includes: The locking hook (12) is slidably mounted on the main lock body (10); The secondary slider (14) is slidably installed inside the secondary lock body (11). A secondary lock pin (15) is fixedly connected to the secondary slider (14). One end of the secondary lock pin (15) slides out of the secondary lock body (11) to lock. A deflection block (21) is rotatably installed inside the secondary lock body (11). A linkage component (24) is installed on the deflection block (21). A transverse groove (20) for the linkage component (24) to be embedded is provided on the secondary slider (14). The secondary slider (14) moves by deflecting the deflection block (21). The linkage component (24) includes: An adjustment groove (26) is provided on the deflection block (21) and extends radially along the rotation axis of the deflection block (21); Adjust the slider (27), which is slidably installed in the adjustment groove (26); The connector (32) is rotatably mounted on the adjusting slider (27), and the connector (32) is embedded in the transverse groove (20) for movement.

2. The anti-theft door lock and its auxiliary lock structure according to claim 1, characterized in that: A connecting strip (13) is slidably installed inside the secondary lock body (11), and a mounting post (25) is rotatably installed inside the secondary lock body (11). The deflection block (21) is rotatably installed on the mounting post (25), so that the deflection block (21) deflects around the axis of the mounting post (25). A column head (22) is rotatably provided on the deflection block (21). An installation groove (23) for the column head (22) to be embedded is provided on the connecting strip (13). The axis of the column head (22) is in the same direction as the axis of the mounting post (25). The movement of the connecting strip (13) pushes the deflection block (21) to rotate around the mounting post (25) through the column head (22).

3. The anti-theft door lock and its auxiliary lock structure according to claim 2, characterized in that: The locking hook (12) is connected to the connecting bar (13). The movement of the locking hook (12) drives the movement of the connecting bar (13). The main slider (16) is slidably installed inside the main lock body (10). The main locking pin (17) is fixedly installed on the main slider (16). One end of the main locking pin (17) slides out of the main lock body (10) for locking. The moving head (18) is fixedly installed on the main slider (16). The locking hook (12) is provided with a guide groove (19). The moving head (18) is embedded in the guide groove (19) and moves. When the main slider (16) moves, the moving head (18) moves in the guide groove (19) and drives the locking hook (12) to move.

4. The anti-theft door lock and its auxiliary lock structure according to claim 3, characterized in that: Limiting grooves (28) are evenly distributed on both sides of the adjustment groove (26). A limiting member (30) for positioning the adjustment slider (27) is slidably provided on the adjustment slider (27). A limiting head (31) embedded in the limiting groove (28) is provided on the limiting member (30).

5. The anti-theft door lock and its auxiliary lock structure according to claim 4, characterized in that: A bolt (29) is rotatably connected to the adjusting slider (27). The bolt (29) passes through the limiting member (30) and is threadedly connected to the limiting member (30). By rotating the bolt (29), the limiting member (30) moves, so that the limiting member (30) has a first state and a second state. In the first state, the limiting head (31) is embedded in the limiting groove (28) to limit the adjusting slider (27). In the second state, the limiting head (31) is disengaged from the limiting groove (28), and the adjusting slider (27) slides in the adjusting groove (26).

6. The anti-theft door lock and its auxiliary lock structure according to claim 1, characterized in that: The connector (32) has an annular groove, and the edge of the transverse groove (20) is embedded in the annular groove.

7. The anti-theft door lock and its auxiliary lock structure according to claim 5, characterized in that: A retaining ring is fixedly provided at one end of the bolt (29) to limit the limiting member (30) and prevent the limiting member (30) from coming out.

8. The anti-theft door lock and its auxiliary lock structure according to claim 6, characterized in that: The secondary lock body (11) is also provided with a through groove (33). When the secondary slider (14) is in the lowest position, the transverse groove (20) is directly opposite the through groove (33).