Weight Adjustable Dumbbell With Telescopic Handle And Rotating Lock
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Solution Overview
Problem
Old dumbbells are integrally formed, making it necessary for users to purchase multiple dumbbells of different weights, resulting in high costs and excessive storage requirements.
Innovation Solution
A weight-adjustable dumbbell design featuring a handle tube with guide grooves, telescopic tubes, and a locking mechanism, allowing users to easily add or remove dumbbell pieces by rotating the handle tube, with a weight display mechanism for convenient weight selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If dumbbells are integrally formed, then structural simplicity is improved, but weight adjustability deteriorates
Solution Approach 1:
The dumbbell is divided into multiple segments: a handle tube, multiple dumbbell pieces of different weights, and a locking mechanism. The dumbbell pieces can be individually selected and attached to the handle tube, allowing weight adjustment while maintaining a relatively simple overall structure.
2Adaptability or versatility
If multiple dumbbells with different weights are purchased, then weight variety is improved, but storage space and cost increase
Solution Approach 1:
The handle tube is designed as a universal component that can accommodate multiple dumbbell pieces of different weights. Instead of needing separate dumbbells for each weight, a single handle tube can be configured with different combinations of dumbbell pieces, making one dumbbell structure serve multiple weight functions.
3Reliability
If a locking mechanism is added, then safety is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is designed to automatically engage and lock the dumbbell pieces to the handle tube through a simple insertion and rotation motion. The mechanism self-locks without requiring additional tools or complex procedures, providing safety while maintaining operational simplicity.
Data Source
AI summary
The present invention discloses a weight adjustable dumbbell, which includes a dumbbell assembly, a dumbbell seat and a plurality of dumbbell pieces placed on two sides of the dumbbell seat, wherein the dumbbell assembly includes a handle tube, tailstock assemblies provided on two sides of the handle tube, a fixed shaft provided throughout inside the handle tube and the tailstock assembly and two telescopic tubes symmetrically sleeved outside the fixed shaft, wherein the handle tube is rotatably connected between the two tailstock assemblies, the handle tube is a hollow tube pieces, with an inner wall thereof being provided with two guide grooves with opposite screw directions, one end of the telescopic tube close to the center of the handle tube is provided with a guide block, and the other end thereof is symmetrically provided with an anti-rotation block , the tailstock assembly includes a tailstock body.