Pivotable Block Lock for Heavy Chain Handling
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Solution Overview
Problem
Conventional block locks used in conveying technology are bulky and difficult to handle, weighing over 10 kg, making them cumbersome for fitters to manage, while still needing to transmit high tensile forces between chain links.
Innovation Solution
A pivotable block lock design with two interlocking halves that can pivot relative to each other, allowing for a scissor-like movement to open and lock, simplifying handling by forming accommodating openings for chain links and maintaining or increasing tensile force transmission through form-fitting engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional block locks are used to transmit high tensile forces, then the tensile force transmission is ensured, but the block lock becomes bulky and difficult to handle
Solution Approach 1:
The block lock is divided into two separable block-lock halves that can be handled independently. Each half can be grasped and positioned separately, making the assembly process much easier than handling a single heavy block lock of equivalent strength.
Solution Approach 2:
The block-lock halves are connected in a pivotable manner, allowing them to move relative to each other during assembly and locking. This dynamic connection enables the halves to be opened to different angles for easy chain insertion, then closed to form the secure locking structure.
2Weight of moving object
If the block lock weight is reduced for easier handling, then the ease of operation improves, but the tensile force transmission capability may be compromised
Solution Approach 1:
By segmenting the block lock into two lighter halves, the overall weight is reduced while maintaining the structural integrity needed for tensile force transmission. The distributed structure allows each half to be optimized for strength-to-weight ratio.
Solution Approach 2:
The two block-lock halves are combined through form-fitting engagement and locking mechanisms to create a unified structure that transmits tensile forces effectively. The combination of halves provides redundant load paths that maintain strength while reducing individual component mass.
3Ease of operation
If the block-lock halves are made separable for easier handling, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The block lock is segmented into two halves that are simpler in individual design but work together to provide the complete locking function. Each half can be manufactured and handled separately, reducing operational complexity despite the multi-component structure.
Solution Approach 2:
The block-lock halves feature form-fitting engagement surfaces that automatically align and lock together when brought into contact. This self-aligning mechanism reduces the need for complex adjustment procedures or specialized tools, simplifying the operation despite the separable design.
Data Source
AI summary
A block lock for connecting two chain ends is disclosed including two opposing block lock halves extending in the longitudinal direction when the block lock is in the locked state, which interlockingly engage in each other, and which lock to form at least one receiving opening for receiving a chain link. The block lock halves are pivotably coupled together in the region of a pivoting end such that the block lock halves can be shifted into an open position or locked position by performing the pivoting movement. In the locked position, the block lock halves integrally engage in one another at an opposite locking end and can be locked.