一种拉手锁
By using a combination of transmission bars and gears, the problem of the toggle block movement getting stuck in the handle lock was solved, achieving stable, reliable, and smooth operation of the lock hook and improving the user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CMECH (GUANGZHOU) INDUSTRIAL LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-07-17
AI Technical Summary
In the operation of existing handle locks, the movement of the lever is prone to jamming, which causes the lock hook to move unsmoothly and affects the operating feel.
The lock hook rotation is controlled by a combination of a transmission bar and gears. The transmission bar is moved by a lever, and the gears mesh directly with the transmission bar to achieve stable, reliable and smooth movement of the lock hook. An elastic buffer sleeve is added to reduce impact noise.
It improves the smoothness and feel of the handle lock operation, reduces lag, and enhances the user experience.
Smart Images
Figure CN224514948U_ABST
Abstract
Claims
1. A lever handle lock characterised in that, Includes a handle, housing, lever, transmission assembly, and at least one locking hook; The transmission assembly includes a transmission bar and a gear; the gear is rotatably disposed within the housing, and the transmission bar is movably disposed within the housing, with teeth on the transmission bar meshing with the gear; The locking hook is rotatably disposed inside the housing and cooperates with the transmission bar. When the transmission bar moves, it drives the locking hook to rotate out of or back into the housing. The lever is located outside the housing and is connected to the transmission bar. The movement of the transmission bar can be controlled by moving the lever. The handle is connected to the housing; one side of the housing is provided with a hollow groove for avoiding the lock hook.
2. The handle lock of claim 1, wherein The locking hook includes a rotating part and a hook part. The rotating part is rotatably connected to the housing, and one end of the hook part is connected to the rotating part. The rotating part cooperates with the transmission bar. When the transmission bar moves, it drives the rotating part to rotate so that the hook part rotates out or back into the housing.
3. The handle lock of claim 2, wherein The end face of the rotating part is provided with a boss; the transmission bar is provided with a moving groove; the boss is correspondingly embedded in the moving groove.
4. The handle lock of claim 3, wherein A limiting wall is provided on one side of the actuating groove. In the width direction of the transmission bar, the limiting wall is closer to the rotation center of the rotating part than the actuating groove. When the hook rotates out of the housing to form a locked state, the boss and the limiting wall abut against each other to form a self-locking effect.
5. The handle lock of claim 1, wherein The transmission bar includes a transmission position and a drive position; the transmission position is located in the middle of the transmission bar and is hollowed out, and the gear teeth are arranged in the transmission position and extend along the length direction; there are two drive positions, located on both sides of the transmission position respectively, and there are two locking hooks, which respectively cooperate with the two drive positions; when the transmission bar moves, it drives the two locking hooks to rotate synchronously in opposite directions so that the two locking hooks rotate out of the housing at the same time or rotate back to the housing at the same time.
6. The handle lock of any one of claims 1-5, wherein, The gear sleeve has an elastic buffer sleeve; when the lock hook rotates back into the housing, it abuts against the elastic buffer sleeve.
7. The handle lock of claim 6, wherein It also includes a lock cylinder; the gear has a hole in which the flat shaft of the lock cylinder is inserted; when the lock cylinder rotates, it can drive the gear to rotate, thereby causing the transmission bar to move and controlling the lock hook to rotate out or back into the housing.
8. The pull handle lock of claim 7, wherein, One end face of the gear is connected to a frustum, and the elastic buffer sleeve is fitted on the frustum. The circumferential surface of the frustum is provided with several positioning grooves. The elastic buffer sleeve is provided with a sliding groove, and a positioning element and a first elastic element are provided in the sliding groove. The elastic force of the first elastic element always causes the positioning element to abut against the circumferential surface of the frustum.
9. The handle lock of any one of claims 1-5, wherein, The lever and the transmission bar are connected by a connecting rod; the housing is provided with a clearance groove, one end of the connecting rod is connected to the transmission bar, and the other end of the connecting rod passes through the clearance groove and is connected to the lever.
10. The handle lock of any one of claims 1-5, wherein, The housing includes an inner shell and an outer shell; the transmission assembly and the locking hook are both disposed in the inner cavity of the inner shell, and the inner shell is disposed in the outer shell; the handle is connected to the outer shell.