Grease Fitting Depressurization Housing With Guided Valve Needle
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Solution Overview
Problem
Manual interventions on lubricators pose risks to operators due to potential pressure-related hazards and environmental concerns, as well as the risk of damaging the non-return valve, which can lead to bursts and reduced lubricator lifespan.
Innovation Solution
A device with a housing for the lubricator head, a needle that moves parallel to the axis to open the non-return valve, and an exhaust opening to direct escaping gas away from the operator, along with a seal to prevent leaks, and a spring mechanism to control the force applied to the valve, ensuring safe operation and reduced wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual intervention is used to press on the valve with a pointed tool, then the valve can be opened to check for pressure, but the operator is exposed to pressurized gas and lubricant, creating safety hazards
Solution Approach 1:
A needle integrated into a housing serves as an intermediary tool between the operator and the valve. The needle can be safely inserted through the housing to press on the valve, while the housing contains any escaping gas and lubricant, preventing direct exposure to the operator. This intermediary structure maintains the ability to open the valve for pressure checking while eliminating the safety hazards of manual intervention.
Solution Approach 2:
The housing is designed with an exhaust opening positioned away from the operator, and the needle is pre-positioned to direct any escaping gas through this opening. By anticipating the potential hazard of gas escape and preparing the housing structure in advance, the system prevents the harmful effect from reaching the operator before it can occur.
2Reliability
If manual pressure is applied to the valve with a pointed tool, then the valve can be opened, but the weakened grease fitting may burst, endangering the operator
Solution Approach 1:
The needle integrated into the housing acts as a controlled intermediary that distributes the force applied to the valve. Rather than concentrating force through a simple pointed tool, the needle is guided by the housing structure, allowing for more controlled and distributed pressure application that reduces the risk of causing the weakened fitting to burst while still enabling valve opening.
3Ease of operation
If the needle contacts the valve directly, then the valve can be opened, but excessive force may damage the weakened grease fitting
Solution Approach 1:
The housing structure provides a cushioning effect by distributing the force applied to the needle across a larger area of the grease fitting. The housing walls and the geometry of the needle insertion path are designed to prevent concentration of stress at a single point, thereby cushioning the impact and reducing the likelihood of damaging the weakened fitting while still enabling sufficient force to open the valve.
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 device safely depressurizes the lubricator, reducing operator risk, minimizing the risk of valve damage, and extending the lubricator's lifespan by allowing controlled pressure release and precise positioning.
Implementation Method 1
an internal spring bearing on the moving part, the internal moving part being guided in translation by the pointer
Implementation Method 2
an internal movable part, one face of which, provided with a closed curved seal, opens into the housing
Data Source
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AI summary
The device (10) for verifying the depressurization of a grease fitting comprises: - a housing (28) for a grease fitting head (12) configured to prevent movement of the grease fitting head parallel to an axis (32), - a needle (18) having one end (26) bearing against a valve (13) of the grease fitting, - a means (14) for moving the needle towards the housing, parallel to the axis, and - an opening (27) for venting gas from the check valve. In some embodiments, the housing (28) comprises two parallel rails for guiding and retaining the grease fitting head (12) and a stop (38) at one end of the guide rails. In some embodiments, the device includes an internal movable part (19) one face (40), provided with a seal (25) in the form of a closed curve, opens into the receiving housing (28).