Cable Gland Assembly for Sealing Across Varying Wall Thicknesses
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Solution Overview
Problem
Existing cable throughput solutions are either limited by a compact structure or require numerous components for assembly, and they often struggle to securely attach to different wall thicknesses.
Innovation Solution
A cable throughput system featuring a convertible element with a clamping element, an intermediate socket with a cage for a sealing element, and a unverzable nut, which allows for flexible assembly on various wall thicknesses through a compact thread connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cable gland uses a plug-in part with locking hooks and a sleeve-shaped locking element, then a substantially sealed seal can be achieved, but the holding force against tensile stress on the cable is limited and the plug-in part can only be mounted on walls of a certain thickness
Solution Approach 1:
The spring clips are designed to be elastically deformable, allowing them to dynamically adapt to different wall thicknesses. The clips can be compressed during installation and then spring back to engage with the wall, providing both sealing and securing functions without requiring multiple components for different wall thicknesses.
Solution Approach 2:
The spring clips change their physical state from a compressed, flexible state during installation to an expanded, locked state after installation. This parameter change allows the same component to adapt to various wall thicknesses while maintaining secure engagement and sealing performance.
2Adaptability or versatility
If a cable gland uses a clamping element with spring clips and a threaded stud with a threaded nut, then flexible mounting on walls of different thicknesses is enabled, but the cable gland has a relatively large axial extension and requires numerous components for installation
Solution Approach 1:
The patent combines multiple functions into the spring clips: they provide both the sealing function (by engaging with the wall and creating a seal) and the securing function (by locking behind the wall to prevent pull-out). This merging of functions reduces the number of separate components needed while maintaining adaptability to different wall thicknesses.
Solution Approach 2:
The spring clips are designed as universal components that can adapt to various wall thicknesses through their elastic deformation capability. A single design of spring clips can be used across different installation scenarios, eliminating the need for multiple specialized components for different wall thicknesses.
3Adaptability or versatility
If a cable gland uses a clamping element with spring clips secured by a threaded stud and nut, then flexible mounting is achieved, but the axial extension becomes relatively large
Solution Approach 1:
The spring clips utilize elastic deformation to achieve engagement with the wall, eliminating the need for long threaded studs and nuts that would increase axial extension. The dynamic spring action allows the clips to engage securely with minimal axial protrusion, reducing the overall length of the cable gland assembly.
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 system achieves a compact structure while ensuring a secure and flexible cable passage through different wall thicknesses, with improved sealing and reduced component count.
Implementation Method 1
The sealing element preferably has a channel for receiving a cable and extends from the cage into a receptacle of the clamping element. Thus, in addition to its sealing function in the area of the cage, which can be compressed radially by the union nut...
Implementation Method 2
The projection can, for example, have a chamfer and a wedge shape in the insertion direction, so that when inserted, the spring bars are bent radially inwards...
Data Source
Figure 1A~1B
Figure 2A~2B
Figure 3A~3B
AI summary
A cable gland (1) for passing a cable (10) through an opening (9) of a wall element (8) comprises a clamping element (2) which can engage behind an edge of the opening (9) with at least one locking section, an intermediate sleeve (3) with a cage (30) for receiving a sealing element (5) and an external thread (31) and a union nut (4, 4') which can be screwed onto the external thread (31) of the intermediate sleeve (3), wherein the intermediate sleeve (3) has an internal thread (32) which can be screwed onto an external thread (22) of the clamping element (2).