一种结构简单小巧的离合结构

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By employing a meshing structure of drive gears, active double-layer gears, and driven double-layer gears in the intelligent lock clutch, combined with sleeves and springs, the problem of screw damage caused by excessive torque is solved, achieving a compact and stable clutch design.

CN224514924UActive Publication Date: 2026-07-17ZHONGSHAN 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: 2026-07-17

AI Technical Summary

Technical Problem

The lead screw of the existing smart lock clutch is prone to damage when subjected to excessive torque, resulting in structural instability.

Method used

The system employs a drive gear, an active double-layer gear, a driven double-layer gear, and an output gear that mesh sequentially. The screw is connected via a sleeve and a spring, which reduces the torque transmission to the screw and protects the screw structure.

Benefits of technology

It effectively reduces torque, protects the lead screw structure, and makes the overall clutch more adaptable and compact.

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Abstract

本实用新型公开了一种结构简单小巧的离合结构，涉及离合结构技术领域，包括壳体以及设置在所述壳体内的马达、传动组件、丝杆和推杆，所述传动组件包括驱动齿轮、主动双层齿轮、从动双层齿轮和输出齿轮，所述驱动齿轮套接在所述马达的输出轴上，所述主动双层齿轮的大轮与所述驱动齿轮啮合，所述从动双层齿轮的大轮与所述主动双层齿轮的小轮啮合，所述输出齿轮与所述从动双层齿轮的小轮啮合，所述输出齿轮套接在所述丝杆上，所述推杆可滑动地套接在所述丝杆上；本实用新型大大降低了扭力，扭力适配结构小巧的丝杆，使丝杆的结构得到保护，智能离合器整体适配性也更好。

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Claims

1. A simple and compact clutch structure characterized by comprising: The device includes a housing and a motor, transmission assembly, lead screw, and push rod disposed within the housing. The transmission assembly includes a drive gear, a driving double-layer gear, a driven double-layer gear, and an output gear. The drive gear is sleeved on the output shaft of the motor. The large wheel of the driving double-layer gear meshes with the drive gear. The large wheel of the driven double-layer gear meshes with the small wheel of the driving double-layer gear. The output gear meshes with the small wheel of the driven double-layer gear. The output gear is sleeved on the lead screw. The push rod is slidably sleeved on the lead screw.

2. The compact clutch structure according to claim 1, wherein The housing includes a bottom shell and a top shell, and the bottom shell and the top shell are detachably connected.

3. The compact clutch structure according to claim 2, wherein The bottom shell and the top shell are connected by bolts.

4. The compact clutch structure according to claim 2, wherein The bottom shell has a first slot whose shape and size are adapted to the motor, and the motor is accommodated in the first slot.

5. The compact clutch structure according to claim 2, wherein The bottom shell is provided with a second slot whose shape and size are adapted to the transmission assembly. The driving double-layer gear and the driven double-layer gear are rotatably connected in the second slot through a first rotating shaft and a second rotating shaft, respectively.

6. The compact clutch structure according to claim 1, wherein It also includes a sleeve, which is connected to the push rod and slidably fitted onto the lead screw.

7. The compact clutch structure according to claim 6, wherein The thread of the lead screw is half a thread.

8. The compact clutch structure according to claim 7, wherein It also includes a spring, which is sleeved on the lead screw, with its two ends abutting against the sleeve and the thread, respectively.