Explosion-Resistant Cover Assembly with Rotating Thread Alignment
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Solution Overview
Problem
Existing explosion-resistant devices face challenges in maintaining safety and ease of use in hazardous environments due to the weight and size of large coverings, which can cause accidental drops and injuries, and the difficulty in aligning and engaging heavy threads, posing risks to workers and equipment.
Innovation Solution
A rotatable cover assembly with a radial support and joint mechanism that retains the cap, allowing for easy alignment and engagement of threads, reducing the risk of accidental drops and enhancing safety by ensuring the cap remains secured even under pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a large covering is used to enclose equipment in hazardous environments, then safety and explosion resistance are improved, but the weight and size increase causing accidental drops and injuries
Solution Approach 1:
The cover assembly is divided into multiple components: a main cover body, a hinge mechanism, and a latch system. This segmentation allows the heavy cover to be manipulated in controlled portions through rotational movement, reducing the effective weight handled during operation while maintaining full enclosure safety
2Strength
If heavy threads are used for secure engagement, then connection strength is improved, but the difficulty in aligning and engaging increases
Solution Approach 1:
The hinge mechanism pre-positions the cover and aligns the threaded connections before final engagement. This preliminary alignment action eliminates the difficulty of manually aligning heavy threads, allowing workers to simply lower the cover onto pre-aligned threaded interfaces
Solution Approach 2:
The hinge acts as an intermediary mechanism that mediates between the heavy cover weight and the thread engagement process. It controls the lowering motion and ensures proper alignment is maintained throughout the engagement process, reducing operational difficulty
3Reliability
If the cap is made secure to prevent dislocation, then reliability is improved, but the complexity of the retention mechanism increases
Solution Approach 1:
The latch mechanism is designed to automatically engage and lock the cap in place through the natural rotational movement of the hinge. Once the cover is lowered, the latch self-activates to secure the cap, eliminating the need for additional manual securing operations or complex multi-component retention systems
Data Source
Figure 1A~1B
Figure 1C
Figure 1D~1E
AI summary
An explosion-resistant device for a hazardous environment is provided. The device includes an enclosure. The enclosure includes a body, a projected rim extending away from the body and defining an opening, and rim threads positioned on a surface of the projected rim. The device further includes a cover assembly including a joint that includes a first portion and a second portion, the first portion affixed with the body. The cover assembly further includes a cap including a cap top and a cap side extending from the cap top, the cap side further including cap threads complementary to the rim threads. The cover assembly also includes a radial support affixed with the second portion and obstructing the cap from dislocating out of the radial support. The cover assembly is rotatably coupled with the enclosure via the joint.