Plug-In Dumbbell Plate Locking for Fast Quiet Weight Changes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing dumbbell structures face issues with complex lock catch structures increasing costs and labor-intensive, time-consuming weight adjustments, along with noise due to plate collisions.
Innovation Solution
A plug-in weighted dumbbell design featuring radial grooves, threaded and blind holes, and a rotating disc mechanism for quick and secure attachment of dumbbell plates, allowing for easy adjustment without additional components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lock catch clamping structure is provided on dumbbell plates during the plugging-in method, then the dumbbell plates can be securely fixed, but the structure becomes complex and the unit price increases
Solution Approach 1:
The patent extracts the complex lock catch clamping structure from the dumbbell plate and relocates the fastening function to the adjusting part. The dumbbell plate only needs a simple through hole, while the adjusting part contains the screw rod, rotating disc, and insertion plates that provide the securing mechanism. This separation simplifies the dumbbell plate structure while maintaining fixation reliability.
Solution Approach 2:
The adjusting part serves as an intermediary component between the dumbbell bar and the dumbbell plates. It contains the screw rod, rotating disc, and insertion plates that mediate the connection, providing secure fixation without requiring complex structures on the dumbbell plates themselves.
2Adaptability or versatility
If the twisting method is adopted to adjust the weight, then the dumbbell plates can be added or reduced, but the operation becomes time-consuming and labor-consuming
Solution Approach 1:
The adjusting part is pre-configured with the screw rod, rotating disc, and insertion plates in a threaded connection structure. The first insertion plate is initially positioned to block the second insertion plate. When adjustment is needed, users only need to rotate the rotating disc to move the first insertion plate out of the way, allowing the screw rod to be quickly extracted and repositioned, rather than completely disassembling the structure.
Solution Approach 2:
The rotating disc provides a dynamic adjustment mechanism. By rotating the disc, the first insertion plate moves along the screw rod thread, enabling quick transition between blocking and non-blocking positions. This dynamic element allows rapid weight adjustment without time-consuming manual assembly or disassembly operations.
3Adaptability or versatility
If the traditional twisting method is used, then weight adjustment is possible, but there is no connection between adjacent weight plates resulting in noise during use
Solution Approach 1:
The adjusting part merges multiple functions into a single component: it provides threaded connection for weight adjustment, structural support through the screw rod, and noise prevention through the insertion plates that create gaps between adjacent dumbbell plates. This unified structure eliminates the need for separate connection elements and inherently prevents plate collisions.
4Adaptability or versatility
If multiple dumbbell plates are provided on the adjusting parts, then weight options increase, but the structure becomes more complex
Solution Approach 1:
The adjusting part is designed as a universal component that can accommodate multiple dumbbell plates with different weights. The screw rod with its thread structure and the rotating disc mechanism can handle any number of plates by simply adjusting the position and number of insertion plates, without requiring different structural configurations for different weight combinations.
Data Source
AI summary
A plug-in weighted dumbbell relates to the technical field of fitness equipment. The plug-in weighted dumbbell includes a dumbbell bar and dumbbell plates, wherein radial plug-in grooves are formed on the dumbbell plates; the dumbbell bar includes a gripping part and adjusting parts, with the adjusting parts in threaded connection with the gripping part; a screwing part is provided at one end of each of the adjusting parts distal to the gripping part; the dumbbell plates are detachably provided on the adjusting parts through the radial plug-in grooves, and two fixed dumbbell plates are fixedly connected to the gripping part, with the fixed dumbbell plates being used to limit the position of the dumbbell plates. Through the configuration of the plug-in weighted dumbbell, the dumbbell plates can be replaced more conveniently and quickly.