Tapered Barbell Clamp Locking for Fast Plate Securing
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Solution Overview
Problem
Existing barbell clamps, particularly the spiral-opening type, suffer from poor locking performance and difficulty in assembly/disassembly, especially when securing weight plates during use.
Innovation Solution
A barbell clamp design featuring a first sleeve with a tapered inner and outer diameter, a limiting assembly with spheres, and a second sleeve for secure locking and easy disassembly, utilizing a collar for enhanced resistance and a hand-held portion for ease of operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the spiral-opening barbell clamp uses pressing blocks embedded in threads, then the locking function is provided, but the locking performance becomes poor and difficulty in opening occurs
Solution Approach 1:
The patent inverts the traditional locking mechanism by using a tapered sleeve that automatically locks when assembled, rather than requiring threaded pressing blocks to be actively engaged. The taper geometry causes the clamp to tighten naturally as it is put together, and opening simply requires pulling the sleeve off, reversing the complexity from opening to closing.
Solution Approach 2:
The patent changes the geometric parameters of the clamp body by incorporating a tapered sleeve with specific angle ranges (5-15 degrees). This parameter change transforms the locking mechanism from a threaded engagement system to a friction-based tapered fit system, improving both locking reliability and ease of opening.
2Reliability
If the Olympic-style barbell clamp uses threaded clamp body and half-blocks, then the locking performance is satisfactory, but the assembly and disassembly cannot be very fast
Solution Approach 1:
The patent segments the clamp into a clamp body and a separate tapered sleeve that can be independently assembled. This segmentation allows the sleeve to be quickly snapped onto the barbell bar and weight plate assembly, eliminating the need to thread complex locking mechanisms during assembly and disassembly operations.
Solution Approach 2:
The tapered sleeve is pre-configured with the correct taper angle and dimensional parameters during manufacturing. This preliminary action ensures that during assembly, the sleeve automatically self-aligns and locks into position without requiring precise manual adjustment or threading operations, significantly speeding up the assembly process.
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 effectively prevents weight plates from sliding off and allows for easy assembly and disassembly by leveraging the tapered sleeve design and limiting spheres, providing secure locking and labor-saving operation.
Implementation Method 1
an outer wall of the first sleeve is an inclined surface, an inner wall of the second sleeve is in contact with the inclined surface
Implementation Method 2
a limiting assembly is installed on an inner wall of the first sleeve, the limiting assembly limits the position after the barbell bar is properly inserted into the first sleeve
Data Source
AI summary
A barbell clamp comprises a first sleeve that is sleeved on one end of a barbell bar and a second sleeve that is sleeved outside the first sleeve, the first sleeve gradually decreases in inner and outer diameters from its first end to its second end, an outer wall of the first sleeve is an inclined surface, an inner wall of the second sleeve is in contact with the inclined surface, a limiting assembly is installed on an inner wall of the first sleeve, the limiting assembly limits the position after the barbell bar is properly inserted into the first sleeve, a collar is fixedly mounted on an outer end of the first sleeve, an outer surface of the collar is matched with an outer surface of a weight plate, which can effectively prevent the barbell from sliding off.