多点锁齿轮箱结构
By incorporating a multi-stage gear transmission structure, a zeroing mechanism, and damping components, the design solves the problems of transmission accuracy and mechanical durability in multi-point lock gearbox structures. This enables precise lock positioning, reduced noise, and easy maintenance, making it suitable for multi-point locking of heavy-duty doors and windows.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU KUNSHAN GENERAL LOCKSET CO LTD
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing multi-point lock gearbox structures have shortcomings in terms of transmission accuracy, return control, and mechanical durability, resulting in lock body position deviation, impact noise, and difficulties in assembly and maintenance.
It adopts a multi-stage gear transmission structure, zeroing mechanism and damping component design, combined with Hall sensor and optocoupler sensor to achieve precise origin positioning, flexible buffering and simplified assembly. Through the high torque transmission of worm gear and worm wheel and the support of ball bearing, the transmission stability and ease of maintenance are improved.
It achieves precise lock positioning, reduces noise, extends service life, and simplifies assembly and maintenance processes, making it suitable for multi-point locking needs of heavy-duty doors and windows.
Smart Images
Figure CN224514938U_ABST
Abstract
Claims
1. A multi-point locking gear box structure, characterized by, It includes a circuit board (1), a motor (2), a worm (3), a worm wheel (4), a gear A (18), a gear B (5), a gear C (6), a gear D (7), a zeroing gear (8), a drive unit (11), a zeroing mechanism, a mounting shell (16), and a mounting plate (17). The motor (2) is fixed inside the mounting housing (16), and its output shaft is connected to the worm (3), which meshes with the worm wheel (4); The worm gear (4) is coaxially fixedly connected to gear A (18), gear A (18) meshes with gear B (5), gear B (5) meshes with gear C (6), gear C (6) meshes with gear D (7), and gear D (7) is connected to the drive member (11) to drive the drive member (11) to move in the up and down direction; The zeroing mechanism includes a zeroing gear (8), a powerful magnet (9), and a zeroing sensing plate (10). The zeroing gear (8) is coaxially mounted with gear D (7). The powerful magnet (9) is mounted on the zeroing gear (8). The zeroing sensing plate (10) is fixedly mounted and has a Hall sensor on it to sense the position signal of the powerful magnet (9) so as to control the motor (2) to be positioned in the initial state. The mounting housing (16) is used to fix the motor (2), worm (3) and worm wheel (4), and the mounting plate (17) is used to support the transmission structure between gear A (18) and gear D (7).
2. The multipoint lock gear box structure according to claim 1, wherein A damping element (12) is provided above the driving element (11). The damping element (12) is made of silicone material and is installed on the mounting shell (16), and contacts the driving element (11) at the extreme position of motion.
3. The multipoint lock gear box structure according to claim 1, wherein The drive unit (11) is provided with a stroke control unit (13), which cooperates with an optocoupler sensor installed on the mounting housing (16) to limit the movement stroke of the drive unit (11).
4. The multipoint lock gear box structure according to claim 1, wherein The gear A (18) is coaxially and fixedly connected to the worm gear (4). The gear A (18) meshes with the gear B (5), gear C (6) and gear D (7) in sequence. The gear D (7) is connected to the drive component (11) through a mechanical connection, forming a multi-stage transmission structure.
5. The multipoint lock gear box structure according to claim 1, wherein It also includes a rack (15) and a ball bearing (14); the rack (15) is fixedly connected to the drive member (11) and meshes with the gear D (7); the ball bearing (14) is disposed on the sliding path of the rack (15) and installed in the mounting housing (16).
6. The multipoint lock gear box structure according to claim 1, wherein The mounting housing (16) and mounting plate (17) adopt a split or integrated structure to fix the gear transmission assembly and provide mechanical support.