Hidden Screen Pull-Line Adjustment and Anti-Leakage Structure
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing hidden screens face issues with inconvenient adjustment due to internal pull line mechanisms, require tools for assembly and maintenance, and struggle with large rolling forces leading to light leakage and mosquito/dust entry.
Innovation Solution
The mechanism is redesigned to allow pull line adjustment on the outer side of the cylinder body, utilize convex ribs and embedding grooves for tool-free assembly, and incorporate a positioning bar to prevent screen movement under large rolling forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the rotating member is disposed inside the cylinder body, then the structure is compact, but adjustment and control become inconvenient due to blockages caused by components
Solution Approach 1:
The rotating member is divided into two functional parts: the rotating mechanism itself is disposed inside the cylinder body for compactness, while the control handle extends outward through the side wall to the exterior. This segmentation allows the operational interface to be accessible while keeping the mechanical components compact.
Solution Approach 2:
A control handle serves as an intermediary element that transmits rotational force from the exterior to the rotating member inside the cylinder body. The handle penetrates the side wall and connects to the rotating member, allowing operators to adjust the tightness of the pull line without direct access to the internal components.
2Ease of operation
If the rotating member is disposed on the side portion of the cylinder body, then adjustment and control become convenient, but the structural compactness is reduced
Solution Approach 1:
The rotating member is divided into two functional parts: the rotating mechanism itself is disposed inside the cylinder body for compactness, while the control handle extends outward through the side wall to the exterior. This segmentation allows the operational interface to be accessible while keeping the mechanical components compact.
3Device complexity
If multiple components are arranged inside the cylinder body, then the structure is compact, but blockages occur that prevent convenient adjustment and control
Solution Approach 1:
A control handle serves as an intermediary element that transmits rotational force from the exterior to the rotating member inside the cylinder body. The handle penetrates the side wall and connects to the rotating member, allowing operators to adjust the tightness of the pull line without direct access to the internal components.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A screen device includes a cylinder body, a movable frame and two first frame materials, wherein the cylinder body and the movable frame are disposed between the two first frame materials, and a rolling bar is disposed in the cylinder body; a screen is disposed between the rolling bar and the movable frame, and at least one rotating member is disposed in the cylinder body; at least one pull line penetrates the movable frame, and at least one end of the pull line penetrates the first frame material to extend into the cylinder body, and is then combined to the rotating member; the rotating member is disposed on a side portion of the cylinder body, and therefore, the rotating member can be adjusted and controlled only by using a tool on the side portion of the cylinder body, so as to adjust and control the tightness of the pull line when needed. The process thereof is completely free from blockages caused by any component, and adjustment and control is really convenient.