Rod Positioning Clamp With Eccentric Quick-Lock Press Board
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Solution Overview
Problem
Conventional positioning devices for rods require users to manually screw and unscrew bolts to lock and unlock, wasting time and energy, and suffer from elastic fatigue leading to inaccurate positioning and inconvenient assembly.
Innovation Solution
A positioning device comprising a base with a sliding guide module, a press board with a guiding module, and an antislip piece, along with a positioning unit featuring a rotatable driving member that moves between pressing and releasing positions to secure or release the rod, allowing easy locking and unlocking without direct contact and deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a bolt is used to lock the rod by screwing, then the rod can be securely locked, but the user has to waste time and energy to screw and unscrew the bolt for locking and unlocking
Solution Approach 1:
The press board is designed to move dynamically between a pressed state (when the driving member applies force) and a released state (when the driving member moves away). This dynamic movement allows the press board to quickly engage or disengage from the rod, enabling fast locking and unlocking without the time-consuming screwing and unscrewing operations, while still providing reliable locking when engaged
Solution Approach 2:
The invention replaces the traditional screw-bolt mechanical system with a pressing-based mechanical system. Instead of using threaded fastening, the driving member directly presses the press board against the rod to create friction-based locking. This substitution eliminates the need for rotational screwing motions and reduces the complexity of the locking mechanism, achieving both speed and reliability
2Reliability
If the annular wall of the clamping ring is used to press the rod, then the rod can be locked, but the annular wall easily produces elastic fatigue during long-term utilization leading to inaccurate positioning
Solution Approach 1:
The pressing force is concentrated on the localized contact area between the press board and the rod, rather than being distributed around the entire circumference as in the annular wall design. This localized pressing reduces the total elastic deformation and fatigue accumulation in the clamping structure, maintaining positioning accuracy over longer service periods
Solution Approach 2:
The press board is designed as a simpler, more replaceable component compared to the annular wall structure. While it may have a shorter individual service life, it can be easily replaced without affecting the overall positioning system, and its simpler structure is less prone to elastic fatigue during normal operation
3Reliability
If the conventional positioning device structure is used, then the rod can be locked, but the device is not assembled conveniently
Solution Approach 1:
The positioning device is divided into distinct modular components: the base with mounting hole, the press board with guiding module, the driving member with handle, and the limiting member. These segmented components can be manufactured separately using standard processes and then easily assembled together, improving both manufacturability and assembly convenience while maintaining the locking function
Solution Approach 2:
The base serves multiple functions: it provides the mounting structure, contains the guiding module for the press board, houses the driving member, and includes the limiting member. This multi-functional design reduces the total number of separate components needed, simplifying both manufacturing and assembly processes while ensuring reliable locking operation
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 quick and energy-efficient locking and unlocking of rods, ensuring tight and precise clamping without deforming the press board, and facilitates convenient assembly and long-term use.
Implementation Method 1
The antislip piece is made of elastic material and is softer than the press board
Implementation Method 2
The driving member of the positioning unit is rotatably and eccentrically connected with the shaft
Data Source
AI summary
A positioning device includes a base, a press board, an antislip piece, and a positioning unit. The base includes an opening, and a mounting space. The mounting space is mounted on a rod. The press board is slidably mounted in the opening. The antislip piece is mounted on the press board and is close to the mounting space. The antislip piece is made of elastic material and is softer than the press board. The positioning unit includes a shaft mounted on the base and a driving member rotatably and eccentrically connected with the shaft. The driving member is driven between a pressing position for locking the rod and a releasing position for unlocking the rod. Thus, the user only needs to drive the driving member to lock or unlock the rod so that the rod is locked or unlocked easily and quickly.