Cable Sealing Device with Breakable Tabs for Variable Diameters
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Solution Overview
Problem
Existing sealing devices for cables, such as cable glands, have a limited range of diameters over which effective sealing can be achieved, making them inefficient for various cable sizes and difficult to assemble and use.
Innovation Solution
A sealing device with multiple coaxially arranged tubular sealing members connected by breakable tabs, allowing separation and adaptation to different cable diameters, along with a tapering cross-section and threaded engagement for axial movement, facilitates wider diameter sealing and easier assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single sealing device is used, then the structure is simple, but the range of cable diameters that can be sealed is limited
Solution Approach 1:
The sealing device is divided into multiple sealing members (first sealing member and second sealing member) with different bore diameters arranged coaxially. The larger-bore first sealing member can seal larger cables, while the smaller-bore second sealing member can seal smaller cables. This segmentation allows a single sealing device assembly to handle a wider range of cable diameters by selectively using the appropriate sealing member.
2Adaptability or versatility
If multiple sealing members are used for different cable diameters, then the adaptability increases, but the assembly complexity increases
Solution Approach 1:
The sealing members are arranged coaxially one inside another, with the second sealing member positioned within the first sealing member. This nested arrangement allows multiple sealing members to occupy the same space efficiently and simplifies the assembly process, as the sealing members can be installed in a straightforward sequential manner along the same axis.
Solution Approach 2:
The sealing members are designed to be movable relative to each other along the axial direction, allowing them to shift positions to accommodate different cable diameters. This dynamic capability enables the sealing device to adapt to various cable sizes without requiring complex disassembly and reassembly, maintaining ease of manufacture while providing versatility.
3Ease of operation
If breakable connecting portions are used, then the ease of separation improves, but the strength of connection decreases
Solution Approach 1:
The connecting portions are designed as separate, breakable elements that connect the sealing members. These connecting portions can be easily broken to separate the sealing members when needed, providing ease of operation for maintenance or cable replacement. The breakable nature is intentionally designed to allow simple separation while maintaining sufficient connection strength during normal operation.
Data Source
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AI summary
A sealing device (18) for sealing engagement with a cable isdisclosed. The sealing device comprises sealing members (24, 26) defining respective bores (34, 36) for receiving a cable, the sealing members being is adapted to be deformed into sealing engagement with the cable. Breakable tabs (28) connect the sealing members, and adapted to be broken to enable separation of the sealing members.