A pulley device
By using a single adjusting element to drive the expansion or contraction of the balance wheel assembly and the parallel wheel assembly in the pulley device, the problems of complex structure and inconvenient assembly of the pulley device are solved, achieving structural simplification and cost reduction.
CN224452542UActive Publication Date: 2026-07-03梁耀灿
View PDF 0 Cites 0 Cited by
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 梁耀灿
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-03
Smart Images
Figure CN224452542U_ABST
Abstract
This utility model belongs to the technical field of door and window hardware accessories, and particularly relates to a pulley device, including a mounting plate, a first drive arm, a second drive arm, and an adjusting component. The upper end of the mounting plate is provided with a swing wheel assembly and a parallel wheel assembly rotatably connected thereto along its length. One end of the first drive arm is driveably connected to the parallel wheel assembly, and one end of the second drive arm is drively connected to the swing wheel assembly. The axis of the adjusting component is set along the length of the mounting plate and rotatably disposed at the other end of the first drive arm. The adjusting component is threadedly connected to the other end of the second drive arm, allowing the adjusting component to rotate around its axis. This utility model allows the swing wheel assembly and the parallel wheel assembly to be extended or retracted separately by the cooperation of a single adjusting component with the first and second drive arms, simplifying the overall structure of the device, reducing the number of parts, lowering assembly complexity and production costs, and greatly improving the user experience.
Need to check novelty before this filing date? Find Prior Art