UV Lamp Holder Latching Mechanism for Reliable Sealing
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Solution Overview
Problem
Existing UV liquid processing devices face issues with reliable sealing due to inadequate assembly confirmation and potential liquid leakage caused by user negligence, especially when the lamp holder is not properly assembled or disconnected from the liquid source.
Innovation Solution
A latching mechanism is implemented, featuring a locking dog that ensures the lamp holder is securely assembled and locked only when in place, with a water nozzle stopper that blocks or allows liquid flow based on the locking status, preventing leakage by requiring disconnection of the liquid source before disassembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a prompt structure is arranged to indicate assembly status, then users can confirm whether the device is assembled in place, but the prompt structure is not obvious enough and cannot ensure reliable sealing if users neglect to pay attention
Solution Approach 1:
The patent uses color changes of the locking dog to indicate assembly status. When the locking dog is in the locked position, it displays one color (e.g., green), and when in the unlocked position, it displays another color (e.g., red). This visual color indication makes the assembly status immediately obvious and cannot be missed by users, thereby ensuring reliable sealing without requiring users to pay special attention to prompt structures.
2Ease of operation
If the lamp holder is directly removable from the liquid handler, then operation is simple, but liquid leakage occurs when removed without disconnecting liquid source
Solution Approach 1:
The patent requires that the liquid source be disconnected before the lamp holder can be removed from the liquid handler. The system performs a preliminary check to ensure the liquid source is disconnected, and only then allows the lamp holder to be removed. This preliminary action prevents liquid leakage while maintaining simple operation, as the system automatically controls the removal permission based on the liquid source connection status.
3Reliability
If the latching mechanism is locked only when assembled in place, then sealing is ensured, but the mechanism adds complexity to the device structure
Solution Approach 1:
The latching mechanism automatically locks itself when the lamp holder is assembled in place on the liquid handler. The locking dog automatically moves to the locked position and engages with the locking groove, ensuring assembly in place without requiring additional manual operations or complex control systems. The mechanism serves itself by using the assembly action to trigger the locking function, thereby ensuring reliability without significantly increasing device complexity.
Data Source
AI summary
A ultra-violet liquid processing device comprises a liquid processor, a lamp holder, a latching mechanism provided within the lamp holder, and a lamp holder fixed cover provided with a lock hole therein. The latching mechanism comprises a locking dog able to extend from or retract into the lamp holder and a water nozzle blocker. When the lamp holder is pressed on the liquid processor and connected with the liquid processor by lamp holder fixed cover, the locking dog projects from the lamp holder and enter into the lock hole of the lamp holder fixed cover, so that the lamp holder fixed cover is locked and cannot move. By means of the lamp holder fixed cover being locked by the latching mechanism and not able to be moved, the ultra-violet liquid processing device is sealed reliably by means of the substantial structure.