Adjustable Dumbbell Damping Blocks for Plate Stability
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Solution Overview
Problem
Existing adjustable dumbbells suffer from movement and resonance issues between dumbbell plates and the bar assembly, leading to user insecurity and distraction during exercises.
Innovation Solution
The adjustable dumbbell incorporates a dumbbell bar assembly with a bearing bar set and inserting plate assemblies that feature damping blocks and a V-shaped design to reduce movement and resonance, ensuring stability and user safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If damping blocks are installed in the inserting plate assemblies, then movement and resonance of dumbbell plates are reduced, but device complexity increases
Solution Approach 1:
Damping blocks are pre-installed in the inserting plate assemblies to provide cushioning before any movement occurs. These damping blocks absorb shocks and reduce resonance between the dumbbell plates and the bar assembly during exercise, preventing instability rather than reacting to it.
Solution Approach 2:
The damping blocks act as intermediary elements between the dumbbell plates and the inserting plate assemblies. They mediate the interaction by absorbing relative displacement through elastic deformation, reducing direct contact and resonance between the rigid components.
2Stability of the object's composition
If protruding strips are added to the bearing bar set, then movement of bearing bar set inside casing is reduced, but device complexity increases
Solution Approach 1:
Protruding strips are added locally to specific parts of the bearing bar set that contact the casing. This localized modification provides friction-based stabilization where needed without requiring complex structural changes to the entire bearing bar set or casing assembly.
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 solution effectively minimizes movement and resonance between the dumbbell plates and the bar assembly, enhancing user experience by reducing fear and allowing for focused exercise.
Implementation Method 1
The damping blocks can offset relative displacement of the dumbbell plates and the inserting plate assemblies through elastic deformation to reduce movement of the dumbbell plates and resonance between the dumbbell plates and the inserting plate assemblies
Implementation Method 2
The protruding strips abut against an inner wall of the casing. On the premise of not impeding sliding of the bearing bar set in the casing, movement of the bearing bar set inside the casing is reduced.
Data Source
AI summary
The application provides an adjustable dumbbell, including a dumbbell bar assembly and a plurality of dumbbell plates hooked to two sides of the dumbbell bar assembly. Inserting plate assemblies for being inserted into insertion ports of the dumbbell plates are disposed at two ends of the dumbbell bar assembly. The inserting plate assemblies are provided with damping block mounting holes, and the damping block mounting holes form third open slots at the bottoms of the inserting plate assemblies. Damping blocks are installed in the damping block mounting holes. The bottoms of the damping blocks abut against the bottoms of the insertion ports of the dumbbell plates through the third open slots.