Nested Trampoline Support Structure for Stronger Tube Joints
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Solution Overview
Problem
Conventional trampoline support structures suffer from inadequate structural strength, leading to potential bending, separation, or fracturing during use and transportation, and lack effective anchoring to prevent loosening and user falls outside the trampoline frame.
Innovation Solution
A trampoline support structure comprising a manifold with integrated longitudinal and transverse installation portions, a mesh encircled tube anchored within, and a support tube forming a multi-layer tubular structure that enhances stability by interlocking annular tubes and a buffer gap mechanism, eliminating the need for welding and providing enhanced anchoring.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional single-layer tube structures are used for trampoline frames, then the device complexity is low and ease of manufacture is high, but the structural strength is insufficient leading to bending and separation during use
Solution Approach 1:
The patent implements a multi-layer nested tube structure where inner tubes are inserted into outer tubes at connection nodes. Specifically, the protection fence tube is nested within the frame tube, and additional reinforcement tubes are nested within both. This nested configuration creates a multi-layer tubular structure that significantly enhances structural strength and resistance to bending and separation while maintaining a relatively simple overall design that is easy to manufacture.
2Reliability
If screw fastening is used to anchor the encircled mesh support rack assembly, then the ease of manufacture is improved, but the reliability deteriorates due to loosening from stress and vibration during jumping
Solution Approach 1:
The patent replaces screw fastening with a nested insertion mechanism where the encircled mesh support rack assembly is inserted into and anchored within the frame tube structure. The nested tube design provides inherent mechanical anchoring through friction and geometric interlocking, eliminating the need for separate fasteners. This improves reliability by preventing loosening from vibration and stress while maintaining ease of manufacture through simple insertion and assembly.
3Strength
If transverse tubes are used to connect frame tubes without one passing through another, then the ease of operation is maintained, but the structural strength deteriorates causing easy bending during vibration and transportation
Solution Approach 1:
The patent implements a nested configuration where transverse connection tubes are inserted within longitudinal frame tubes, and additional reinforcement tubes are inserted within both. This nested arrangement creates multiple layers of structural support at each connection node, significantly enhancing connection strength and resistance to bending during vibration and transportation. The modular nested design maintains ease of operation through simple insertion and assembly without requiring complex fastening procedures.
4Strength
If welded connections are used to enhance structural strength, then the strength is improved, but the ease of repair deteriorates due to difficulty in disassembly and reconfiguration
Solution Approach 1:
The patent employs nested insertion connections where tubes are inserted into one another without welding. The nested configuration provides structural strength through friction, geometric interlocking, and multi-layer support. This non-welded nested design maintains ease of repair by allowing simple insertion and removal of components, enabling easy disassembly, reconfiguration, and replacement without the need for welding equipment or procedures.
Data Source
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AI summary
A trampoline support structure includes a manifold (1), a first annular tube (2), a mesh encircled tube (3), a second annular tube (4) and a support tube (5). The manifold (1) includes a longitudinal installation portion (11), a transverse installation portion (12) and an installation hole (13) located on the transverse installation portion (12). The first annular tube (2) includes a first assembly section (21) inserted into the transverse installation portion (12) and an anchor hole (23) located on the first assembly section (21). The mesh encircled tube (3) includes an anchor section (31) inserted into the installation hole (13), the anchor hole (23) and the longitudinal installation portion (11). The second annular tube (4) includes a second assembly section (41) inserted into the first assembly section (21). The support tube (5) is coupled on the longitudinal installation portion (11). By coupling the second annular tube (4) on the first annular tube (2), anchoring the mesh encircled tube (3) on the transverse installation portion (12) and the first annular tube (2), the anchor section (31), the longitudinal installation portion (11) and the support tube (5) form a multi-layer structure, thus can solve the problem of inadequate structural strength occurred to the conventional techniques.