Cable Sling Closure Device With Threaded Locking Sleeve
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Solution Overview
Problem
Existing locking devices for cable slings and high-pressure lines face challenges in secure attachment and re-tightening, particularly in cramped environments, where traditional methods require special tools and are time-consuming, and the 'whiplash effect' poses a risk for high-pressure lines.
Innovation Solution
A locking device with a variably adjustable screw connection between the locking sleeve and clamping sleeve allows for easy re-tightening of cable loops around lines, using a screw connection with external and internal threads, and securing means like grub screws and slots to prevent loosening, enabling secure attachment without special tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional locking devices are used for cable slings, then secure attachment is achieved, but installation is time-consuming and requires special tools
Solution Approach 1:
The locking device is divided into separate modular components: a locking sleeve with thread connection, a clamping sleeve with cutting edges, and cable sections. This segmentation allows for simpler assembly and disassembly operations, enabling faster installation while maintaining secure attachment through the threaded locking mechanism.
Solution Approach 2:
The locking device incorporates self-contained functional elements where the threaded connection on the locking sleeve enables self-adjustment and self-locking during installation. The clamping sleeve with integrated cutting edges automatically secures the cable when tightened, eliminating the need for external special tools or complex assembly procedures.
2Object-affected harmful factors
If cable slings are placed around high-pressure lines, then the whiplash effect is prevented, but attachment in cramped environments is difficult
Solution Approach 1:
The locking sleeve and clamping sleeve are designed to fit together in a nested configuration, with the clamping sleeve positioned within or adjacent to the locking sleeve. This compact nested arrangement reduces the overall size of the assembly, making it easier to attach cable slings around high-pressure lines in cramped environments while still providing secure prevention of the whiplash effect.
3Device complexity
If the locking sleeve and clamping sleeve are fixed at a fixed distance, then structural simplicity is maintained, but re-tightening capability is lost
Solution Approach 1:
The locking device incorporates a dynamic threaded connection between the locking sleeve and clamping sleeve, replacing a fixed rigid connection. This threaded interface allows the distance between the two sleeves to be adjusted during installation and re-tightening operations, enabling adaptability for different cable tensions and re-tightening requirements while maintaining relatively simple structural design.
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
The solution simplifies and speeds up the installation process, ensures secure attachment of cable slings to high-pressure lines, preventing loosening and the 'whiplash effect, and allows for easy handling in confined spaces without requiring special tools.
Implementation Method 1
the locking sleeve and the clamping sleeve can be fixed in a variably adjustable relative position to one another for retensioning the cable loop around a line by partially unscrewing the screw connection between the locking sleeve and the clamping sleeve
Implementation Method 2
rope securing means for locking the first and second rope sections in the locking sleeve so that the rope loop does not loosen
Data Source
Figure 1
Figure 2a
Figure 2b~2d
AI summary
The invention relates to a closure device (100) for a cable sling (200) which is placed around a line (410) for securing purposes. The aim of the invention is to simplify the assembly of the closure device and to shorten the assembly time. According to the invention, this is achieved in that the closure device also has a clamping sleeve (120) together with a locking sleeve (110), both cable portions of the sling being lockable in the locking sleeve in a non-displaceable manner. In order to lock the cable sling on the line in a non-displaceable manner, the closure device is designed such that the cable sling can be tightened, wherein the distance d between the clamping sleeve (120) and the locking sleeve (110) can be increased by a screwing process for example.