Plastic electric lift device
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing stand assist lifts occupy large spaces, making them inconvenient for storage and transfer.
Innovation Solution
A plastic electric lift device with a folding mechanism and clamping assembly that allows the seat assembly to fold and unfold, reducing space occupation by folding the backrest relative to the seat plate, and featuring a removable push rod head for easy storage and transport.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the lift structure is made rigid and stable to ensure safety and support functionality, then the structural strength and stability are improved, but the space occupation increases making storage and transfer inconvenient
Solution Approach 1:
The lift device is divided into separable modules: the push rod head can be detached from the folding assembly, and the folding assembly itself can be collapsed. This segmentation allows the device to be disassembled into smaller components for convenient storage while maintaining structural integrity during use
Solution Approach 2:
The folding assembly incorporates movable joints and folding mechanisms that allow the structure to dynamically change its configuration. The crisscross arm mechanism can transition between extended (for stability) and folded (for compact storage) states, enabling the device to adapt its volume based on operational needs
2Reliability
If the push rod head is permanently fixed to the folding assembly to ensure operational reliability, then the reliability is improved, but the ease of operation for storage and transfer deteriorates
Solution Approach 1:
The push rod head is designed as a separate, detachable component from the folding assembly. This allows the device to be divided into manageable parts for easy storage and transport, while the connection mechanism ensures reliable operation when assembled
Solution Approach 2:
A clamping assembly acts as an intermediary mechanism between the push rod head and the folding assembly. This clamping mechanism provides reliable connection during operation while allowing easy detachment when storage is needed, bridging the contradiction between fixed reliability and operational flexibility
3Stability of the object's composition
If the backrest is fixed relative to the seat plate to ensure user support and safety, then the stability is improved, but the volume increases reducing portability
Solution Approach 1:
The backrest is connected to the seat plate through a rotatable joint, allowing it to dynamically adjust its position. During use, the backrest can be positioned to provide optimal user support and stability, while during storage, it can be rotated to fold parallel to the seat plate, reducing the overall device volume
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
The device significantly reduces space occupation, facilitating convenient storage and transfer by allowing the lift to be folded compactly, while maintaining functionality for user assistance.
Implementation Method 1
a torsion spring sleeved on the shaft rod; a first end of the torsion spring is configured to abut against the base plate; a second end of the torsion spring is configured to abut against the clamping part
Implementation Method 2
the electric push rod assembly comprises a main body and a push rod; the push rod is partially provided within the main body; the push rod is configured to extend and retract along an axial direction of the main body
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A plastic electric lift device includes a seat assembly, a folding assembly, an electric push rod assembly and a clamping assembly. The seat assembly includes a seat plate and a backrest rotatably connected thereto. The folding assembly is configured to support the seat assembly. The electric push rod assembly includes a main body and a push rod partially within the main body. The main body is provided at the backrest. The push rod has a push rod head removably provided at the folding assembly, and is configured to extend and retract along an axis of the main body, such that the main body drives the folding assembly to expand or fold to drive the seat assembly to ascend or descend. The clamping assembly is configured to limit the push rod head to the folding assembly or to release the push rod head from the folding assembly.