Adjustable Eccentric Pin-Lock Structure for Automatic Misalignment Correction
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Solution Overview
Problem
Existing pin-lock connection structures face challenges in efficiently adjusting for eccentricity between components due to limited space for fitting the pin head into the eccentric sleeve, requiring repeated adjustments to achieve a secure fit.
Innovation Solution
A connection structure with a floating sleeve that moves radially to automatically correct deviations as the pin head is inserted, utilizing a guide head and latch mechanism for secure locking, allowing for adjustable eccentricity without manual alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pin head is closely fitted with the eccentric sleeve in the lock cylinder, then the connection reliability is improved, but the ease of operation deteriorates due to limited space for adjustment and repeated adjustments required
Solution Approach 1:
The floating sleeve automatically adjusts itself during the insertion process. As the pin head is inserted into the lock cylinder, the floating sleeve moves along the radial direction under the guide action of the guide head, and the deviation is automatically corrected. This self-adjusting mechanism eliminates the need for manual repeated adjustments while ensuring reliable connection.
Solution Approach 2:
The floating sleeve is designed to be movable rather than fixed. It can move along the radial direction of the lock cylinder during insertion, allowing dynamic adaptation to eccentricity. This dynamic capability enables automatic correction of misalignment without requiring manual intervention or complex adjustment mechanisms.
2Adaptability or versatility
If manual adjustment of the eccentric sleeve is used, then the adaptability to eccentricity is improved, but the productivity deteriorates due to repeated adjustments required
Solution Approach 1:
The floating sleeve performs self-adjustment during the insertion process. As the pin head enters the lock cylinder, the floating sleeve automatically moves radially and corrects deviation under the guide action of the guide head. This eliminates the need for manual repeated adjustments, maintaining high adaptability to eccentricity while significantly improving assembly efficiency.
Solution Approach 2:
The guide head is designed with a guiding surface that预先 (in advance) guides the floating sleeve during insertion. This preliminary guiding action ensures that the floating sleeve is correctly positioned before the pin head reaches the locking position, preventing the need for repeated adjustments and improving assembly productivity.
3Ease of operation
If the floating sleeve is made movable along the radial direction, then the ease of operation is improved, but the device complexity increases due to additional moving parts
Solution Approach 1:
The lock cylinder is segmented into a fixed outer cylinder and a movable inner floating sleeve. This segmentation allows the floating sleeve to move independently along the radial direction under the guide action of the guide head, facilitating easy insertion and automatic deviation correction. The segmented structure achieves operational simplicity without requiring complex external adjustment mechanisms.
Data Source
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AI summary
The present invention relates to a connection structure with automatic adjustable eccentricity, including a locking portion and a pin portion respectively arranged on two components. An adjusting portion is arranged between the locking portion and the pin portion. The locking portion includes a lock cylinder open toward the pin portion, a supporting sleeve threadedly arranged at an open end of the lock cylinder, a floating sleeve movably arranged on the supporting sleeve, and a latch mechanism arranged on the floating sleeve. The floating sleeve is movable along a radial direction of the lock cylinder. The pin portion includes a pin cylinder and a pin head. The pin cylinder is open toward the locking portion. The pin head includes a thread end threadedly connected with an open end of the pin cylinder and a pin end fixed on the thread end. An outer periphery of an upper part of the pin end is provided with an annular groove. Once the pin end is extended upwardly out of the supporting sleeve and the floating sleeve, the annular groove is fitted and fixed with the latch mechanism. The adjusting portion is sleeved on the pin end and is arranged to control a depth of the pin head inserted into the lock cylinder. The other end of the lock cylinder and the other end of the pin cylinder are respectively provided with a connecting member.