Pressure-Balanced Ventilation Valve for Stable Hose Lifter Hovering
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vacuum tube lifters often automatically move to the end position, which is not desirable in certain applications, and existing solutions for controlling the ventilation valve are complex or prone to unintentional actuation.
Innovation Solution
A ventilation valve with a pressure-balanced mechanism featuring two valve body assemblies that move in opposite directions, ensuring they remain in position despite pressure differences, allowing for intuitive and energy-efficient control of the hose lifter's length.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single valve body is used in the ventilation valve, then the structure is simple, but the valve is prone to unintentional actuation by pressure differences and cannot maintain a stable hovering state
Solution Approach 1:
The single valve body is divided into two separate valve bodies (first valve body and second valve body) that can move independently in opposite directions. This segmentation allows each valve body to be balanced against pressure differences, preventing unintentional actuation and enabling stable hovering state maintenance.
Solution Approach 2:
The two valve bodies are positioned asymmetrically on opposite sides of the ventilation opening, allowing them to respond differently to pressure differences. The first valve body moves in one direction while the second valve body moves in the opposite direction, creating a balanced system that resists pressure-induced actuation.
2Reliability
If a separate locking lever is added to lock the trigger in a defined switching position, then the hovering height can be maintained, but the device complexity increases
Solution Approach 1:
The ventilation valve mechanism automatically maintains the hovering state through its own design - the two valve bodies self-balance against pressure differences and remain in position without requiring external locking mechanisms. The system serves itself by using the pressure differences to maintain valve positions rather than requiring additional locking components.
3Ease of operation
If the vent valve is actuated by a single operating element, then the control is simple, but the valve cannot be reliably held in intermediate positions
Solution Approach 1:
The valve mechanism is designed to be dynamically responsive - the two valve bodies can move independently in response to operating element actuation, allowing the system to achieve and maintain intermediate positions. The dynamic coupling between the two valve bodies enables reliable positioning while maintaining ease of operation through a single operating element.
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 solution enables a stable hovering state without additional locking mechanisms, providing intuitive operation and energy savings while preventing unintentional actuation, thus enhancing the usability of vacuum tube lifters.
Implementation Method 1
when a pressure difference exists between the vacuum side and the vent side, at least in the closed position, a first force acting in the first switching direction is exerted on the first valve body assembly, and a second force acting opposite to the second switching direction is exerted on the second valve body assembly
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The invention relates to a ventilation valve (10) for a tube lifter, as well as a tube lifter (100) comprising such a ventilation valve (10) and an operating device (108) for a tube lifter (100) comprising such a ventilation valve (10).