Reusable Stop-Bolt Locking for Liquid Container Discharge Taps
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Solution Overview
Problem
Existing discharge taps for liquid containers require a new securing device after each use, leading to additional effort and increased risk of transporting partially filled containers without proper closure due to the need for replacement and re-mounting of securing devices.
Innovation Solution
A discharge tap with a reusable securing device featuring a stop bolt held by a guiding device, allowing translation between locking and unlocking positions, eliminating the need for device replacement or re-mounting, and incorporating a tamper-proof seal for added security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a securing device is used to secure the handle at the shut-off position, then the discharge tap remains closed during transport, but the securing device must be replaced after each use requiring additional effort and time
Solution Approach 1:
The stop bolt is designed to remain on the discharge tap and automatically reset to the locking position after use. The guiding device allows the stop bolt to translate between locking and unlocking positions without requiring removal or replacement, enabling the securing device to serve itself for subsequent uses.
Solution Approach 2:
Instead of discarding the securing device after one use, the stop bolt is recovered and reused. The guiding device enables the stop bolt to be reset to its locking position after the handle is opened, allowing continuous reuse without replacement.
2Reliability
If a securing device is used to prevent unintentional displacement, then the discharge tap remains secure, but the device requires destruction or removal after first use eliminating reusability
Solution Approach 1:
The stop bolt transitions from a static, single-use securing element to a dynamic, reusable component. The guiding device enables the stop bolt to move between locked and unlocked positions and automatically return to the locking position, providing both security during transport and reusability for subsequent uses.
3Reliability
If a securing device is provided for the discharge tap, then the shut-off position is secured, but the device complexity increases with additional components
Solution Approach 1:
The stop bolt combines multiple functions into a single component: it acts as both the securing element and the indicator element. The guiding device integrates the movement guidance and reset functionality into the existing handle structure, reducing overall system complexity while maintaining security and reusability.
Data Source
AI summary
A discharge tap (10) for liquid containers, in particular for connecting to the outlet neck or the outlet opening of a transportation and storage container for liquids, having a tap housing (11) in which a valve body being pivotable around a valve axle by means of a handle (12) for opening and closing a flow cross section of an outlet tube (13) is arranged, said handle being provided with a handle stop and a housing dome of the tap housing being provided with a housing stop, said handle stop and said housing stop being able to be locked relatively to each other via a securing device (16) for securing the locking position, the securing device (16) comprising a stop bolt (17) being able to be displaceable between a bolting position and an unbolting position in a translatory manner in direction of the valve axle.