Adjustable Spring-Grip With Labeled Blind Holes
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Solution Overview
Problem
Conventional abdominal spring-grips have a limited adjustment range and lack a quantitative reference for grip strength, with an extensive and complex adjustment mode.
Innovation Solution
A spring-grip design featuring a torsional spring with hollow handles, a limit steel ball, and labeled blind holes on the torsion arms, allowing for adjustable grip strength through a combination of truncated-cone through holes and step protrusions, enabling easy and precise adjustment of grip length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional spacing pieces with through holes are used to adjust grip position, then the structure is simple, but the adjustment range is small and the operation is extensive
Solution Approach 1:
The limit steel ball is designed to be movable within the truncated-cone through hole, allowing it to dynamically transition between locked positions (at different blind holes) and an unlocked state (at the open end). This dynamic mechanism enables continuous adjustment across multiple positions while maintaining structural simplicity, resolving the contradiction between wide adjustment range and simple structure.
Solution Approach 2:
The truncated-cone through hole provides a continuously variable geometry that allows the limit steel ball to be positioned at different depths, corresponding to different grip adjustment positions. By changing the positional parameter of the limit steel ball along the conical axis, the system achieves wide adjustment range without requiring multiple discrete components, thus maintaining structural simplicity.
2Measurement precision
If conventional adjustment mechanisms are used, then the structure is simple, but the grip strength lacks quantitative reference
Solution Approach 1:
Different blind holes are marked with different colors or labels indicating specific grip strength values. This visual indication system provides quantitative reference for grip strength without adding mechanical complexity, allowing users to select the desired grip level based on the markings. The limit steel ball's position at different colored markings directly correlates to different quantified grip strengths.
Solution Approach 2:
Multiple blind holes are provided at different positions along the torsion arm, each representing a discrete grip strength level. The limit steel ball can be positioned at any of these pre-defined locations, effectively copying the function of a continuous adjustment mechanism through discrete steps. This provides quantitative grip strength reference while maintaining structural simplicity through the use of standardized blind hole patterns.
3Reliability
If the limit steel ball diameter is larger than tube wall thickness, then the fixing is reliable, but the adjustment operation becomes difficult
Solution Approach 1:
The limit steel ball is designed with diameter larger than the tube wall thickness to ensure reliable fixing when engaged with blind holes, but the truncated-cone through hole provides a clearance path that allows the ball to be dynamically inserted and removed. The conical geometry creates a tapered clearance that guides the ball during insertion while maintaining secure engagement at the locked position, resolving the contradiction between reliable fixing and easy adjustment operation.
Solution Approach 2:
The truncated-cone through hole acts as an intermediary structure that mediates between the limit steel ball and the blind holes. The conical shape provides a transition zone that facilitates the insertion and removal of the steel ball, enabling easy adjustment operation while ensuring reliable fixing when the ball engages with the blind holes at the desired position.
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 design provides a wider adjustment range with intuitive grip value indication, simplifying the adjustment process and ensuring precise grip strength control, facilitating more effective grip exercises.
Implementation Method 1
when the spring is pressed downwards, the fixed handle relatively moves upwards to drive the limit steel ball to move upwards
Implementation Method 2
The abdominal spring-grip is a conventional fitness equipment for exercising grip strength, the structure thereof generally comprises a torsional spring and two handles
Data Source
AI summary
A spring-grip easy to adjust grip, comprising a torsional spring and two handles for inserting torsion arms of the torsional spring, wherein spacing blind holes are punched on the torsion arm; the handles comprise a fixed handle, a movable handle, a collar, a spring and a limit steel ball, the fixed handle and the movable handle are both hollow tubular structures, compared to the prior art, the invention is provided with different inner diameter segments in the movable handle to realize the limit steel ball having two states of tension and looseness in truncated-cone through hole, thereby realizing the torsion arm having two states of fixation or movable adjustment in handles, which makes grip adjustment method easier, simultaneously, spacing blind holes are labeled with different grip values, which can intuitively determine the grip when using different spacing blind holes, and scientifically guide the grip exercise.