Tent Frame Unfolding Mechanism Guide Rods Stability

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Solution Overview

Problem

Existing tent frames are unstable and prone to deviation during unfolding due to uneven stress, lacking a guide structure for proper alignment and support.

Innovation Solution

A tent frame design featuring a tent roof fixing block with movable connection rods, an unfolding mechanism including an insertion rod and guide plastic, and supporting assemblies with leaf springs and pins, which distribute stress evenly and provide stability through snap-fit connections and guide rods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If a traditional tent frame structure is used without guide structures, then the assembly is simpler, but the tent frame is likely to deviate when being pushed upwards and unfolded and is less stable

Engineering Contradiction:
Improveassembly simplicityVSAvoidstability during unfolding
Core Design Contradiction:
Ease of operationVSStability of the object's composition

Solution Approach 1:

Guide rods are introduced as intermediary components between the connection seats and connection rods. These guide rods constrain the movement path of the connection rods during unfolding, ensuring they move along the correct trajectory and preventing deviation, thereby improving stability without significantly complicating the assembly process

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The support function is divided into multiple components: guide rods for alignment, limiting mechanisms for position control, and connection seats for structural attachment. This segmentation allows each component to perform its specific function efficiently, with guide rods handling alignment and limiting mechanisms handling position control

Inventive Principle:
Principle #1Segmentation

2Device complexity

If a traditional tent frame structure is used without limiting mechanisms, then the structure is simpler, but the tent frame is stressed intensely and unevenly when being unfolded and will become unstable after being unfolded

Engineering Contradiction:
Improvestructural complexityVSAvoidstress distribution uniformity
Core Design Contradiction:
Device complexityVSStress or pressure

Solution Approach 1:

Limiting mechanisms are pre-installed on connection seats before assembly. These limiting mechanisms preliminarily define the movement range and stopping positions of connection rods, ensuring that during the unfolding process, stress is distributed evenly across all components as they reach their designated positions simultaneously or in a controlled sequence

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

Limiting mechanisms act as intermediary components between the connection seats and connection rods, controlling the interaction forces. They limit the maximum movement of connection rods and ensure that stress is transmitted uniformly through the structure, preventing intense localized stress concentrations

Inventive Principle:
Principle #24Intermediary (Mediator)

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 design ensures even stress distribution and stability during unfolding, preventing deviation and simplifying the assembly and folding processes.

Implementation Method 1

a spring is fixedly connected between the pressing plate and the mounting base

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS20240376743A1Tent frame
Publication Date: 2024.11.14 XIAMEN MOQI IND & TRADE CO LTD
  • US20240376743A1 patent drawing
  • US20240376743A1 patent drawing
  • US20240376743A1 patent drawing

AI summary

Disclosed is a tent frame. The tent frame includes a tent roof fixing block, where an outer side of the tent roof fixing block is movably connected to a plurality of first connection rods through rotary shafts, and one ends of the plurality of first connection rods are movably connected to connectors through rotary shafts; one sides of the plurality of connectors are movably connected to second connection rods through rotary shafts, and one sides of the plurality of second connection rods are provided with supporting assemblies; a bottom of the tent roof fixing block is provided with an unfolding mechanism. The disclosure has the beneficial effects as follows: supporting structures are evenly stressed, and the tent frame is stabler and does not deviate after being unfolded. Accordingly, the tent frame is convenient to use and simpler to fold.