Spring-Loaded Angle Clamp Holder for Vibration-Resistant Rod Fixing
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Solution Overview
Problem
Existing angle adjustment mechanisms for musical instrument supports, such as rotary joints, require cumbersome operations to fix adjusted angles and are prone to loosening due to vibration, leading to potential screw breakage.
Innovation Solution
An angle fixing clamp holder with a first and second fixture group, a fixed bolt, and a compression spring, allowing for simple steering operation by axial sliding of the first cylindrical portion relative to the second, enabling rotation and clamping of the first and second erecting rods, with non-circular axisymmetric profiles for secure engagement and a compression spring for automatic fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a rotary joint with rotary knob is used to adjust the relative inclination angle, then the angle can be adjusted, but the operation becomes troublesome and the connection may loosen due to vibration
Solution Approach 1:
The patent employs a dynamic clamping mechanism where the first and second movable blocks can move along the first and second erecting rods. The locking assemblies dynamically adjust to clamp the rods at desired positions, replacing the static rotary knob mechanism. This dynamic system provides both ease of operation through linear movement and reliable connection through positive clamping action that resists vibration.
Solution Approach 2:
The patent replaces the spiral mechanical fastening system (rotary knob with threads) with a linear sliding and clamping system. The movable blocks slide along the rods and are secured by locking assemblies, eliminating the screwing and unscrewing operations. This substitution maintains adjustment capability while improving operational simplicity and connection reliability under vibrational conditions.
2Adaptability or versatility
If a rotary knob is fixed in a spiral way, then the angle adjustment is possible, but loosening and screw breakage may occur due to vibration
Solution Approach 1:
The locking assemblies provide dynamic clamping force that can be applied or released as needed. The movable blocks can be positioned at various locations along the rods and securely clamped, providing angle adjustment capability without the loosening problems of spiral fastening. The system adapts to different positions while maintaining reliable connection through friction and geometric constraints.
Solution Approach 2:
The patent extracts the problematic spiral fastening element (rotary knob with threads) from the system and replaces it with a sliding block and locking assembly mechanism. This extraction eliminates the source of vibration-induced loosening and potential screw breakage while preserving the essential function of angle adjustment through the movable blocks' positioning capability.
3Ease of operation
If the first cylindrical portion has axial rotation degree of freedom, then steering operation is enabled, but secure fixation is compromised
Solution Approach 1:
The system dynamically transitions between two states: during operation, the first cylindrical portion can rotate relative to the second cylindrical portion to enable steering; during fixation, the locking assemblies engage to eliminate rotation degree of freedom and provide secure connection. This dynamic state change allows the system to satisfy both contradictory requirements at different operational phases.
Solution Approach 2:
The system periodically alternates between allowing rotation (during steering operations) and preventing rotation (during fixed position operations). The locking assemblies are engaged or disengaged based on operational needs, creating a periodic pattern of freedom and constraint that satisfies both steering capability and fixation security requirements.
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
Facilitates easy adjustment and secure fixing of the relative inclination angle between rods with a simple steering operation, preventing loosening and screw breakage, while allowing quick release and adjustable fitting for different rod sizes.
Implementation Method 1
a compression spring is sleeved on the fixed bolt and positioned in the accommodating space, and the first cylindrical portion is pushed by the compression spring to move towards the second cylindrical portion
Implementation Method 2
when the first cylindrical portion is in the clamping position, the first non-circular axisymmetric profile clamps the second non-circular axisymmetric profile, and the first cylindrical portion in the clamping position does not have the axial rotation degree of freedom relative to the second cylindrical portion
Data Source
AI summary
The invention comprises a first fixture group for clamping a first erecting rod, a second fixture group for clamping a second erecting rod, a fixed bolt and a compression spring, wherein the first fixture group comprises a first cylindrical portion with a first non-circular axisymmetric profile, the second fixture group comprises a second cylindrical portion sleeved with the first cylindrical portion, the second cylindrical portion comprises a second non-circular axisymmetric profile correspondingly sleeved with the first non-circular axisymmetric profile, and the first cylindrical portion axially slides relative to the second cylindrical portion to have a rotatable rotating position and a non-rotatable clamping position, the fixed bolt penetrates through the second cylindrical portion, the first cylindrical portion and the compression spring to be screwed with a nut, and the first cylindrical portion is pushed by the compression spring to move from the rotating position to the clamping position.