Multi-Gear Caulking Gun with Segmented Thrust Adjustment
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Solution Overview
Problem
Existing caulking guns have fixed single or limited adjustable thrust ratios, requiring multiple purchases for different viscosities and lacking stability in gear adjustments, leading to inefficiency and inconvenience.
Innovation Solution
A caulking gun with a multi-gear and adjustable thrust ratio mechanism using a segmented cylinder fixed pin and sliding groove, allowing for multiple thrust ratio adjustments through a segmented circular limiting hole and sliding groove structure, ensuring stable positioning and smooth operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed single thrust ratio structure is used, then the structure is simple and reliable, but the adaptability to different silicone viscosities is poor
Solution Approach 1:
The patent implements a dynamic adjustment mechanism where the fulcrum position can be changed along the rotating trigger. The user can adjust the fulcrum location to change the thrust ratio, allowing the same device to adapt to different silicone viscosities. This dynamic configuration enables one device to replace multiple fixed-ratio devices.
Solution Approach 2:
The rotating trigger is segmented with multiple locating holes at different positions along its length. These locating holes serve as discrete fulcrum positions, allowing the user to select different thrust ratios by changing which hole the fulcrum engages with. This segmentation provides multiple discrete adjustment options without requiring a continuous complex mechanism.
2Reliability
If an arc-shaped slip groove with circular pin is used for adjustment, then two thrust ratios can be provided, but the positioning stability is poor and operation is interrupted
Solution Approach 1:
Instead of using a continuous arc-shaped groove, the patent segments the adjustment path into discrete locating holes positioned at different locations along the rotating trigger. The fulcrum engages with specific holes to provide stable positioning at defined thrust ratios. This segmentation eliminates the slipping problem of continuous grooves while maintaining discrete adjustment options.
Solution Approach 2:
The patent introduces a fulcrum component that acts as an intermediary between the rotating trigger and the pusher plate. The fulcrum engages with specific locating holes to transmit force at different lever arms, providing stable thrust ratio adjustment. This intermediary mechanism ensures reliable force transmission while maintaining operational continuity by allowing smooth rotation between discrete positions.
3Adaptability or versatility
If an arc-shaped slip groove is used, then adjustment is possible, but only two thrust ratios can be provided and cannot provide more than two selections
Solution Approach 1:
The patent segments the rotating trigger with multiple locating holes at different positions, allowing the fulcrum to engage with any of these holes to provide multiple discrete thrust ratio selections. This segmentation approach enables more than two adjustments without requiring complex continuous adjustment mechanisms, maintaining simplicity while increasing versatility.
Solution Approach 2:
The rotating trigger is designed with multiple locating holes that serve multiple functions: each hole provides a different fulcrum position for different thrust ratios, and the same structure allows for both adjustment and stable operation. This multi-functional design enables a single mechanism to provide multiple thrust ratio selections without adding significant complexity.
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 multiple thrust ratio adjustments with enhanced stability and convenience, reducing the need for multiple purchases and improving operational efficiency.
Implementation Method 1
the rotating trigger 2 can be pivotally connected to the fixed handle 1 through a trigger fixed pin 4 so that the rotating trigger 2 can be rotated around the trigger fixed pin in an angle range... uses the principle of leverage to push the trigger pusher pin 3 to act on the pusher plate 6
Implementation Method 2
The segmented circular limiting hole is located on the fixed handle, the fixed handle is partially accommodated in the connection part of the rotating trigger to so that the segmented circular limiting hole will be located in the sliding groove
Data Source
AI summary
A caulking gun with multi-gear and adjustable thrust ratio is provided. In the caulking gun, the rotating trigger is pivotally connected to the fixed handle through a gear adjustment mechanism, which consists of a segmented circular limiting hole, a sliding groove and a segmented cylinder fixed pin. The sliding groove consists of groove openings respectively on the two sides of the connection part of the rotating trigger, and the sliding groove includes at least two limiting teeth formed by at least two successively connected locating holes. The segmented cylinder fixed pin passes through the segmented circular limiting hole and both ends extend out respectively from the sliding groove openings of both sides. The width of the connection of each two locating holes is the passing width of the limiting teeth, and the minimum width of the segmented cylinder fixed pin is slightly less than the passing width of the limiting teeth.