Rotary Nozzle Seat Structure for Fast Nozzle Replacement
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Solution Overview
Problem
Nozzles are difficult to replace due to snap-fitting, leading to low replacement speed and inefficient cleaning operations.
Innovation Solution
A rotary nozzle structure comprising a first center rod, first reset spring, driven wheel, fixed cover, rotating seat, nozzle seat structure, sheath, second reset spring, second center rod, and locking nut, with a sawtooth transmission mechanism allowing for easy rotation and replacement of nozzles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If snap-fitting is used to mount the nozzle, then the nozzle is firmly fixed, but the nozzle replacement becomes difficult and slow
Solution Approach 1:
The patent transforms the static snap-fitting connection into a dynamic bayonet-style rotational connection. The nozzle connects to the nozzle seat through a rotating insertion motion rather than a simple snap-fit, allowing for both secure fixation during use and easy rotational removal when replacement is needed. This dynamic connection method resolves the contradiction by providing stability during operation while enabling quick changes.
Solution Approach 2:
The patent divides the nozzle assembly into separable components: the nozzle, the nozzle seat, and the connecting mechanism. The nozzle seat includes a rotating connection structure with positioning features that allow the nozzle to be independently removed and replaced. This segmentation enables the nozzle to be firmly fixed when connected but easily replaced when needed, resolving the contradiction between fixation stability and replacement ease.
2Device complexity
If traditional nozzle replacement method is used, then the structure is simple, but the replacement speed is low and cleaning efficiency is reduced
Solution Approach 1:
The patent introduces a dynamic rotational connection mechanism that allows the nozzle to be quickly inserted and removed through a rotating motion. This bayonet-style connection enables rapid nozzle replacement without requiring complex tools or procedures, significantly improving replacement speed while maintaining reasonable structural complexity.
Solution Approach 2:
The patent creates a standardized repeating connection structure (the bayonet-style rotating connection) that can be consistently applied across different nozzle types and positions. This standardized connection mechanism allows for rapid, repeatable nozzle replacements, improving productivity while keeping the overall device complexity manageable through standardization.
Data Source
AI summary
The present invention discloses a rotary nozzle structure, including that a middle portion of the first center rod protrudes outwards to form an annular portion; the first reset spring, the driven wheel, the fixed cover are sequentially sleeved on an upper end of the first center rod, where two ends of the first reset spring respectively abut against the annular portion and the driven wheel, and the driven wheel is in matched transmission with the fixed cover; a rotating seat extends into the fixed cover and is sleeved on the first center rod, and the rotating seat is matched with the driven wheel through a sawtooth structure; the nozzle seat structure is sleeved on the rotating seat and is fixedly mounted on the fixed cover through the nut; the sheath is mounted on the upper end of the first center rod.