Expandable Rod Height Adjustment for Top-Side Analyzer Mounting
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Solution Overview
Problem
Existing automatic analyzers face difficulties in adjusting the attachment height of the stirring mechanism due to their layout, making it challenging to fix components to a horizontal surface and adjust height dimensions from the upper side.
Innovation Solution
A height adjustment device comprising a fixed member, a hollow rod member, and a diameter-expanding pressing member is used to fix and adjust the height of the stirring mechanism relative to a reference surface from the upper side, utilizing a hole in the vertical position movable member and a diameter-expanding mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a conventional fixing mechanism is used to attach the stirring mechanism to the horizontal surface, then the stirring mechanism can be fixed, but the height adjustment from the upper side cannot be performed due to layout constraints of the automatic analyzer
Solution Approach 1:
Instead of adjusting the height from the lower side or side as in conventional mechanisms, this invention enables height adjustment from the upper side by inverting the adjustment direction. The operating member is provided on the upper surface of the movable member, allowing operators to adjust the height from above, which resolves the layout constraint problem in automatic analyzers where front, side, and back adjustments are difficult.
Solution Approach 2:
A rod member with a hollow interior acts as an intermediary between the fixing member and the movable member. The diameter-expanding pressing member is inserted through the rod member to press against its inner peripheral surface, enabling force transmission and height adjustment while maintaining a compact structure that fits the analyzer layout.
2Reliability
If the rod member is made solid to increase structural strength, then the fixing reliability improves, but the ability to expand diameter for fixing the movable member is reduced
Solution Approach 1:
The diameter-expanding pressing member is nested within the hollow rod member. The pressing member can be inserted through the rod member from the upper side and pressed against the inner peripheral surface of the rod member, utilizing the hollow space to achieve both structural integrity and expansion capability.
Solution Approach 2:
The rod member transitions from a static solid structure to a dynamic structure that can expand its diameter. By making the rod member hollow and allowing the diameter-expanding pressing member to press against its inner surface, the rod member can dynamically adjust its effective diameter to secure the movable member at the desired height.
3Ease of operation
If the fixing mechanism is designed to allow height adjustment from the upper side, then the ease of operation improves, but the structural complexity of the fixing mechanism increases
Solution Approach 1:
The height adjustment operation is inverted to occur from the upper side rather than the lower or side. The operating member is positioned on the upper surface of the movable member, and the diameter-expanding pressing member is inserted from above, allowing intuitive upper-side adjustment while maintaining relatively simple structure through the use of the hollow rod member.
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
Enables the fixation of component members to a horizontal surface and adjustment of height dimensions relative to a reference surface from the upper side, facilitating effective stirring and analysis in automatic analyzers.
Implementation Method 1
a sine wave, a rectangular wave, or the like is applied to a piezoelectric element at a frequency near a thickness resonance frequency to generate an ultrasonic wave
Implementation Method 2
generate an ultrasonic wave, and the ultrasonic wave is irradiated toward the liquid to be stirred
Implementation Method 3
mixing a liquid to be stirred (a sample and a reagent) in a non-contact manner using an effect of an acoustic radiation pressure of an ultrasonic wave
Implementation Method 4
a diameter-expanding pressing member configured to press the rod member in a diameter-expanding direction
Data Source
Figure 1
Figure 2
Figure 3~4B
AI summary
Provided is a height adjustment device capable of fixing a component member to a horizontal surface, and adjusting a height dimension with respect to a reference surface from the upper side of the device. A height adjustment device 113 comprises: a fixed member 201 that is fixed to a horizontal surface 112; a hollow rod member 202; a vertical position movable member 203 that is fixed to the fixed member 201 with the rod member 202 therebetween on an upper surface of the fixed member 201; and a diameter-expanding pressing member 204 that presses the rod member 202 in a diameter-expanding direction. A hole into which the rod member 202 is inserted from a lower surface toward an upper surface of the vertical position movable member 203 is formed in the vertical position movable member 203, an opening 205 is formed on the upper surface of the vertical position movable member 203 by inserting the rod member 202 into the hole, the diameter-expanding pressing member 204 is inserted downward into the hollow portion of the rod member 202 from above the opening 205, and the rod member 202 is pressed in the diameter-expanding direction whereby the position of the vertical position movable member 203 is fixed.