Sprayer Pump Connecting Rod Multi-Level Latching
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Solution Overview
Problem
Sprayers face challenges with reliability and maintenance due to impact strains during transport and shutdown, requiring a solution that ensures a secure connection between the pump connecting rod parts to prevent disengagement and simplify assembly.
Innovation Solution
The pump connecting rod features interlocking connecting rod parts with multiple latching levels, including a first and second latching element, arranged at angles to each other, which can be deformed during assembly to create a stable and secure connection, preventing unintentional disengagement and allowing for easy assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single latching level is used to connect the connecting rod parts, then the assembly is simple, but the connection is vulnerable to impact forces and may disengage
Solution Approach 1:
The patent transitions from a single latching level to multiple latching levels (first and second latching levels at different heights), adding a vertical dimension to the connection system. This multi-level arrangement prevents disengagement under impact forces while maintaining manageable device complexity through systematic design.
Solution Approach 2:
The connecting device is segmented into multiple functional components: first and second latching elements, first and second latching surfaces, and associated spring elements. This segmentation allows each component to perform a specific function, improving overall reliability while keeping the assembly process manageable.
2Reliability
If the connecting rod parts are made secure against impact, then the sprayer operates reliably, but the assembly and disassembly becomes more difficult
Solution Approach 1:
The patent incorporates spring elements (first and second spring elements) that provide dynamic, elastic forces to the latching mechanism. These springs automatically engage and disengage the latching elements during assembly and disassembly, making the process easier while maintaining secure connection during operation. The dynamic spring action compensates for manufacturing tolerances and facilitates smooth operation.
3Reliability
If multiple latching elements are used to prevent disengagement, then the connection is impact-resistant, but the manufacturing cost increases
Solution Approach 1:
The patent merges multiple latching elements and spring elements into an integrated connecting device that can be manufactured as a single component or pre-assembled unit. This merging approach maintains connection stability through multiple latching points while simplifying manufacturing by reducing the number of separate parts and assembly steps.
Data Source
AI summary
The disclosure relates to a sprayer with a reservoir for a fluid, such as for a pesticide, with a pump device for pressurizing the fluid, whereby the pump device includes a pump drive, which is movably coupled to a pump piston by means of a pump connecting rod, whereby the pump connecting rod features a first connecting rod part and a second connecting rod part, whereby in order to connect the first connecting rod part and the second connecting rod part, at least one connecting device is provided, by means of which the connecting rod parts can be interlocked in at least two different latching levels.