Foldable Tent Non-Circular Bracket Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing foldable tents with straight rods and spring pins suffer from inaccurate installation due to the lack of a relative positioning structure, leading to misalignment of the spring pin and pin hole, which prevents the tent parts from locking and connecting properly.
Innovation Solution
A foldable tent with a central lifting and automatic opening and closing structure is designed, featuring a central bracket group with an upper frame and base bracket, and inclined frames with non-circular structures to ensure precise alignment and locking of the spring pin and pin hole.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a straight rod with spring pin is installed on the second part by inserting and fixed by pasting with glue or screwing, then the support rod can be connected to the first part, but without a relative positioning structure, the alignment between the spring pin and pin hole is inaccurate, causing inappropriate installation and inability to lock and connect the parts properly
Solution Approach 1:
The patent applies asymmetry by designing the mounting hole with a non-circular cross-section that does not match the circular cross-section of the support rod. This asymmetric geometry creates a unique fitting relationship where only one specific orientation of the support rod allows it to pass through the mounting hole, thereby providing automatic positioning and ensuring accurate alignment between the spring pin and pin hole during installation.
2Ease of manufacture
If the support rod is fixed on the second part without a reference positioning structure, then the installation process is simpler, but the deflection installation causes the spring pin to stagger with the hole on the first part, affecting assembly accuracy
Solution Approach 1:
The patent implements self-service by designing the non-circular mounting hole and corresponding support rod geometry to automatically guide and position the support rod during insertion. The asymmetric shapes act as self-aligning features that automatically orient the support rod in the correct position as it is being installed, eliminating the need for external positioning fixtures or complex alignment procedures while ensuring precise assembly.
Data Source
AI summary
Disclosed is a foldable tent with central lifting and automatic opening and closing structure, including a central bracket group and inclined frames. The central bracket group includes an upper frame and a base bracket. The inclined frame includes a first inclined rod hinged with the upper frame at one end, and a second inclined rod hinged with the first inclined rod at one end. The upper frame includes an upper top and a middle piece. The upper top is provided with a mounting hole in a non-circular structure. The middle piece is provided with an upper section and a lower section both in a non-circular structure. The lower section is provided with a spring pin. The base bracket is provided with an insertion hole in a non-circular structure. The side wall of the insertion hole is provided with a pin hole capable of locking the spring pin.