Floating Sleeve Pin-Lock Structure for Automatic Eccentric Alignment
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Solution Overview
Problem
Existing pin-lock connection structures with adjustable eccentricity require manual adjustment of the eccentric sleeve, which is inconvenient due to limited space for fitting the pin head and eccentric hole, making accurate alignment and fitting challenging.
Innovation Solution
A connection structure with a floating sleeve that moves radially within the lock cylinder, guided by a guide head, allowing automatic correction of deviation as the pin head is inserted, and is secured by a latch mechanism, enabling secure connection between the pin and locking portions without the need for precise initial alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of the eccentric sleeve is used, then the pin portion can be inserted into the locking portion, but the operation becomes inconvenient due to limited space for fitting the pin head and eccentric hole
Solution Approach 1:
The floating sleeve automatically adjusts its position relative to the pin head during insertion, eliminating the need for manual adjustment. The sleeve moves freely along the radial direction and self-aligns with the pin head through the insertion process itself, making the system self-adjusting and eliminating complex manual operation requirements
Solution Approach 2:
The floating sleeve is designed to be movable rather than fixed, allowing it to dynamically adjust its position during the insertion process. The sleeve can move along the radial direction of the lock cylinder and automatically corrects deviations as the pin head is inserted, transforming a static adjustment problem into a dynamic self-aligning process
2Manufacturing precision
If the eccentric sleeve is adjusted repeatedly to achieve accurate fit, then the pin head can be inserted into the eccentric hole, but the process becomes time-consuming and inefficient
Solution Approach 1:
The floating sleeve automatically achieves accurate alignment with the pin head through the insertion process itself, eliminating the need for repeated manual adjustments. The self-aligning mechanism ensures that the sleeve and pin head are properly positioned without requiring operator intervention or time-consuming trial-and-error adjustments
Solution Approach 2:
The floating sleeve is pre-configured to move freely along the radial direction, allowing it to automatically correct any initial misalignments before the final locking position is reached. This preliminary self-correction action ensures accurate alignment is achieved automatically during insertion, without requiring pre-adjustment or repeated attempts
3Reliability
If the pin head is closely fitted with the eccentric sleeve, then secure connection is achieved, but the gap between pin head and eccentric hole cannot be overly large requiring precise initial alignment
Solution Approach 1:
The floating sleeve transforms the static fitting problem into a dynamic self-aligning process. During insertion, the sleeve moves along the radial direction and automatically adjusts to achieve close contact with the pin head, ensuring reliable connection without requiring precise initial alignment or operator skill
Solution Approach 2:
The floating sleeve acts as an intermediary element between the pin head and the lock cylinder. It absorbs and corrects alignment deviations through its movable design, ensuring that the pin head achieves secure connection with the locking portion while compensating for any initial misalignments between components
Data Source
AI summary
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 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 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.