Valve Cover Plug Locking for Tamper-Evident Seal Protection
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Solution Overview
Problem
Existing valve covers fail to adequately protect valve openings and interior components from damage, contamination, and tampering, leading to potential leaks and safety hazards when storing or using compressed gases.
Innovation Solution
A valve cover design featuring a cap with a projecting plug and tear strips, which provides additional protection to the valve opening and interior components, and includes protrusions for secure locking, ensuring a tamper-evident seal and preventing unauthorized access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a simple protective cap is used to cover the valve exterior, then the valve is partially protected from external damage, but the valve opening and interior components remain exposed to contaminants and tampering
Solution Approach 1:
The protective device is divided into multiple functional segments: an outer cap structure for exterior protection, an inner plug for opening protection, and locking mechanisms. This segmentation allows each component to address specific protection needs while working together to provide comprehensive valve protection.
Solution Approach 2:
The inner plug is nested within the cap structure, with the plug fitting inside the cap's interior space. This nested configuration allows the smaller protection element (plug) to be housed within the larger protection element (cap), maximizing space utilization and providing layered protection.
2Ease of operation
If the valve opening is left accessible for normal operation, then the valve can be easily operated, but contaminants and obstructions can enter and damage internal components
Solution Approach 1:
The plug is pre-positioned to cover the valve opening before use, and the cap is designed to be easily removed or opened when valve operation is needed. This preliminary protective action maintains cleanliness while allowing quick access when required.
Solution Approach 2:
The plug acts as an intermediary barrier between the external environment and the valve opening. It physically blocks contaminants while allowing the valve to function when the plug is removed or opened, mediating between protection and accessibility requirements.
3Reliability
If a secure locking mechanism is added to prevent tampering, then the valve is better protected from unauthorized access, but the device complexity increases
Solution Approach 1:
The locking mechanism is designed to be self-actuating through simple user actions. The cap can be locked into place through friction fits, snap-fit features, or simple lugs that engage with corresponding features on the valve, eliminating the need for complex external locking devices.
Solution Approach 2:
The cap and plug are designed with flexible or deformable features that allow them to conform to and lock onto the valve body. This flexibility enables secure locking through material deformation rather than complex mechanical interlocks, simplifying the overall structure.
4Object-affected harmful factors
If the valve cover provides comprehensive protection, then the valve is well-protected from damage, but the cover may interfere with normal valve operation and access
Solution Approach 1:
The protective cap and plug are designed with dynamic characteristics, allowing them to be easily moved between protected and accessible states. The locking mechanism enables quick transition from locked (protected) to unlocked (accessible) states, maintaining both protection and operational ease.
Solution Approach 2:
The protective elements are designed to be pre-installed in the protective position, requiring minimal action to deploy or activate. This preliminary positioning ensures protection is in place before needed while allowing rapid access when operation is required.
Data Source
AI summary
The presently-disclosed subject matter includes valve covers. The valve covers can protect valves from exposure as well as from tampering. In some embodiments the valve cover comprises a cap that includes a top end and a side wall that is substantially cylindrical. Embodiments of valve covers also include a plug on an interior side of the top end of the cap that projects toward the opening of the cap. When the valve cover is installed, the plug can extend beyond an opening of the valve.