A new door closing sensing automatic locking and opening scratchproof lock body

CN224693187UActive Publication Date: 2026-08-28ZHEJIANG DAXIONG SECURITY TECH CO LTD
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Patent Information

Application Number
CN202521266498.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-20
Publication Date
2026-08-28
Estimated Expiration
2035-06-20

AI Technical Summary

Technical Problem

[0002]现有传统机械锁在实际应用中，其闭锁机制过度依赖人工操作或需额外配置外置电动装置实现自动化，导致使用便利性与智能化程度不足，同时自弹式锁体结构存在显著设计缺陷，不仅容易因意外触碰产生误锁定现象，其动态锁舌在感应触发过程中还会与门框发生高频次刮擦接触，长期运行易引发机械部件磨损，加之闭锁瞬间的惯性冲击可能造成锁体与门框的刚性碰撞，存在结构性损伤风险的问题

Benefits of technology

1、本实用新型中，通过新型关门感应自动上锁开门防刮锁体中的固定组件，并且利用锁体通过机械联动结构实现三种状态控制：不上锁状态下，单独操作斜舌或触碰舌件均因触发钩一与斜舌无接触而不触发机构；自动上锁时需同步按压斜舌与触碰舌组件，通过触发钩挡片逆时针转动使触发钩一与斜舌接触，斜舌回弹时带动触发钩一逆时针运动，驱动锁止片释放自弹拨板，经主栓拨板传动使主栓一上移完成锁定；开锁则通过锁芯拨轮或把手拨轴驱动斜舌推板，联动主栓拨板、斜舌拨片及触碰舌拨片连杆，实现主栓回收、自弹拨板蓄力及触碰舌组件复位，从而有益于解决现有机械锁需要手动上锁或者需要外置电动上锁，同时原来自弹锁容易误触上锁和感应触碰舌刮擦及撞击门框的问题。

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Abstract

The utility model relates to lock body technical field especially is a new type of door closing induction automatic locking door opening scratchproof lock body, including lock body spare, the inner wall of lock body spare installs the latch piece, the inner wall of lock body spare installs the touch tongue subassembly, the utility model discloses a lock body is through mechanical linkage structure and realizes three state controls: the state of not locking, the separate operation latch or touch tongue spare all does not trigger the mechanism because of the contact of trigger hook no.
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Claims

1. A novel door-closing sensor-activated automatic locking and scratch-resistant lock body, comprising a lock body component (1), characterized in that: The inner wall of the lock body (1) is equipped with a slanted tongue (2), a touch tongue assembly (3), a trigger hook stop (4), a trigger hook (5), a locking plate (6), a locking torsion spring (7), a self-spring plate (8), a self-spring torsion spring (9) at one end, and a main bolt (10). One end of the lock body (1) is equipped with a main bolt plate (11), the inner wall of the lock body (1) is equipped with a tongue push plate (12), the inner wall of the lock body (1) is equipped with a tongue paddle (13), the inner wall of the lock body (1) is equipped with a push plate (14), the inner wall of the lock body (1) is equipped with a start plate (15), the inner wall of the lock body (1) is equipped with a handle paddle shaft (16), the inner wall of the lock body (1) is equipped with a first touch tongue paddle (17), one end of the first touch tongue paddle (17) is equipped with a touch tongue paddle connecting rod (18), and the inner wall of the lock body (1) is equipped with a lock cylinder paddle wheel (19).

2. The novel door-closing sensor-activated automatic locking and scratch-resistant lock body according to claim 1, characterized in that: The oblique tongue (2) is located on one side of the touch tongue assembly (3), the trigger hook stop (4) is located on one side of the trigger hook (5), the locking plate (6) is located on one side of the locking torsion spring (7), the self-springing plate (8) is located on one side of the self-springing torsion spring (9), and one end of the self-springing torsion spring (9) is connected to the inner wall of the lock body (1).

3. The novel door-closing sensor-activated automatic locking and scratch-resistant lock body according to claim 1, characterized in that: The main bolt (10) is located on one side of the main bolt lever (11), and one end of the main bolt lever (11) is connected to the inner wall of the lock body (1). The oblique tongue push plate (12) is located on one side of the oblique tongue lever (13).

4. A novel door-closing sensor-activated automatic locking and scratch-resistant lock body according to claim 1, characterized in that: The push plate (14) is located on one side of the start plate (15), the first touch tongue lever (17) is located on one side of the touch tongue lever connecting rod (18), and one end of the touch tongue lever connecting rod (18) is connected to the inner wall of the lock body (1).

5. A novel door-closing sensor-activated automatic locking and scratch-resistant lock body according to claim 1, characterized in that: The touch tongue assembly (3) includes a touch tongue (31), wherein the touch tongue (31) is located on the inner wall of the lock body (1) and the touch tongue (31) is located on one side of the oblique tongue (2). The trigger hook (5) includes a contact hook (51), wherein the contact hook (51) is located on the inner wall of the lock body (1) and the contact hook (51) is located on one side of the oblique tongue (2).

6. A novel door-closing sensor-activated automatic locking and scratch-resistant lock body according to claim 5, characterized in that: The locking plate (6) includes a locking protrusion (61), wherein the locking protrusion (61) is located in the inner cavity of the lock body (1), the locking protrusion (61) is located on one side of the self-spring plate (8), the self-spring plate (8) includes a hook (81), wherein the hook (81) is located in the inner cavity of the lock body (1), and the hook (81) is located on one side of the locking protrusion (61).