Interchangeable-Core Barbell Clamp for Fast Multi-Size Locking
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Solution Overview
Problem
Existing barbell clamping technologies are limited by the need for multiple clamps to match different barbell sizes, leading to inconvenience and inefficiency in weight plate replacement, as traditional spiral locks require slow rotation and are not adaptable to varying barbell sizes.
Innovation Solution
A barbell clamping assembly with a replaceable core system, featuring press blocks connected by springs, a hexagon bolt, rotating rod, handle, and clamping blocks with elastic support, allowing for quick size adjustments and secure locking without replacing the entire assembly, accommodating various barbell sizes through interchangeable cores.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional spiral lock clamps are used, then barbell bars can be securely locked, but multiple different sized clamps are needed for different barbell sizes and replacement is time-consuming
Solution Approach 1:
The clamp body is designed as a universal structure that can accommodate multiple barbell sizes through interchangeable inner cores. The inner cores come in different sizes (24mm, 25.4mm, 28mm, 29mm) and can be quickly swapped within the same clamp body, eliminating the need for multiple dedicated clamps for different barbell sizes.
Solution Approach 2:
The clamp is divided into two main segments: a universal clamp body and replaceable inner cores. This segmentation allows the outer clamp body to remain the same while the inner cores are changed to match different barbell sizes, simplifying the overall system while maintaining versatility.
2Reliability
If traditional spiral lock mechanism is used, then secure locking is achieved, but weight plate replacement requires slow rotation and is time-consuming
Solution Approach 1:
The traditional spiral lock mechanism is replaced with a quick-release lever system. Instead of requiring rotational movement of a screw, the user simply pulls the lever to release the clamping force, dramatically reducing the time required for weight plate replacement while maintaining secure locking through the spring-loaded clamping blocks.
Solution Approach 2:
The clamp transitions from a static spiral lock to a dynamic quick-release mechanism. The lever provides a simple mechanical motion (pulling) that rapidly releases the clamping force, allowing fast weight plate replacement. The spring-loaded clamping blocks automatically adjust to maintain secure locking when the lever is in the engaged position.
3Adaptability or versatility
If multiple sized clamps are purchased to match different barbell sizes, then all sizes are covered, but it is troublesome when size is not suitable after purchase
Solution Approach 1:
By making the clamp body universal and only the inner cores size-specific, the product simplifies the purchasing decision. Users only need to buy one clamp body and select the appropriate inner core size, reducing the complexity of matching and purchasing the correct clamp for their barbell size.
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
Enables fast and secure locking of barbell bars of different sizes with interchangeable cores, reducing wear and eliminating the need for multiple clamps, thus enhancing versatility and user convenience.
Implementation Method 1
The replaceable core is connected to the press blocks through first springs respectively
Implementation Method 2
The first clamping block and the second clamping block are connected to the barbell clamping body through second springs respectively
Implementation Method 3
a first magnet is disposed at a side of the arc fixing groove and in the barbell clamping body, and a second magnet matching with the first magnet is disposed in the fixing block and magnetically attractive to the first magnet
Data Source
AI summary
The invention relates to the field of barbell clamping technologies and particularly to a barbell clamping assembly including a barbell clamping body. A replaceable core is inserted into the barbell clamping body. Press blocks are inserted into the replaceable core. The replaceable core is connected to the press blocks through first springs. A hexagon bolt is inserted into the barbell clamping body. A rotating rod is inserted into the hexagon bolt. A handle is sleeved onto the rotating rod. A fixing block is disposed on a side of the handle. A clamping structure is inserted into the barbell clamping body and includes first and second clamping blocks inserted into the barbell clamping body. The first and seconds clamping blocks are connected to the barbell clamping body by second springs, and an arc fixing groove is disposed in the barbell clamping body and between the first and second clamping blocks.