Cabinet Projection Screen with Automatic Cover-Lifting Mechanism
Solution Overview
Problem
Conventional projection screens occupy valuable space and are not versatile enough to serve multiple functions in limited work or living areas, such as offices or homes.
Innovation Solution
A cabinet projection screen with an automatic cover-lifting function, featuring a cover-lifting mechanism with a motor-driven cover plate, an elevator screen with a scroll and motor, and a controller for automated operation, allowing it to function as both a desk and a projection screen.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a conventional projection screen is suspended in an office or special site, then the large-screen display function is achieved, but the work area or living area becomes more limited and inconvenient
Solution Approach 1:
The patent combines the projection screen function with an office cabinet by integrating the screen rolling mechanism and projection screen into the cabinet structure. The cabinet body houses the screen storage compartment and rolling mechanism, allowing the screen to be deployed from and retracted into the cabinet. This merging of functions enables the cabinet to serve dual purposes: storage/furniture and projection display, thereby achieving large-screen display without sacrificing valuable work or living space.
Solution Approach 2:
The cabinet is designed with multi-functionality, serving both as ordinary office furniture (storage, workspace) and as a projection screen system. The cabinet body provides storage compartments for office supplies while the integrated elevator screen mechanism enables projection display functionality. This universal design allows a single piece of furniture to fulfill multiple roles, optimizing space utilization in limited environments.
2Adaptability or versatility
If the cover plate is opened to deploy the projection screen, then the projection function is activated, but the mechanism becomes more complex with multiple moving parts
Solution Approach 1:
The projection screen is wound around a scroll rod that is nested within the cabinet structure. The screen rolls up onto the scroll rod when retracted and unrolls when deployed. The scroll rod itself is positioned within the cabinet body, nested among other components like the cover plate and drive mechanism. This nested arrangement allows the screen storage mechanism to be compact while maintaining full deployment capability, reducing overall structural complexity.
Solution Approach 2:
The cover plate mechanism serves dual purposes: it protects the projection screen when closed and acts as part of the deployment structure when opened. The cover plate's movement is mechanically linked to the screen deployment, so opening the cover plate automatically initiates screen deployment without requiring separate controls. This self-service approach reduces the number of independent control mechanisms needed.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the use of a single unit as both a normal office desk and a projection screen, optimizing space by providing a multi-functional solution for presentations in compact environments.
Implementation Method 1
The cover-lifting mechanism includes a cover plate, a transmission rod, and a cover-plate drive motor. The cover-plate drive motor drives the cover plate to open or close through the transmission rod.
Implementation Method 2
The elevator screen includes a projection screen, a scroll, a scroll motor driving the scroll to rotate, and a compression frame.
Implementation Method 3
An elastic mechanism is installed on the compression frame. Two ends of the elastic mechanism are installed on the adjacent support rods, respectively.
Data Source
AI summary
A cabinet projection screen with an automatic cover-lifting function is provided, which includes a cabinet body (1). A cover-lifting mechanism (2) is disposed on the cabinet body (1). The cover-lifting mechanism (2) includes a cover plate (21), a transmission rod (22), and a cover-plate drive motor (23). The cover-plate drive motor (23) drives the cover plate (21) to open or close through the transmission rod (22). An elevator screen (3) is disposed inside the cabinet body (1). The elevator screen (3) is aligned with an opening (24) on the cabinet corresponding to the cover plate (21) when the cover plate (21) is opened. The cabinet projection screen can be used as a normal office desk or cabinet when not used for projection, and can also be used as a projection screen when necessary, so that a multi-functional office desk or cabinet is obtained.