Liquid transfer unit and apparatus, and automatic testing device
By designing a liquid transfer unit with buffer and sensing components, the problem of easy damage or clogging of the injection needle was solved, achieving stability and accuracy in liquid transfer and improving detection efficiency and precision.
WO2026143918A1PCT designated stage Publication Date: 2026-07-09SHENZHEN DEEP CABLE TECH +1
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- SHENZHEN DEEP CABLE TECH
- Filing Date
- 2025-04-28
- Publication Date
- 2026-07-09
AI Technical Summary
Technical Problem
In existing liquid transfer processes, the injection needle is easily damaged or blocked due to hard contact, affecting detection efficiency and accuracy.
Method used
A liquid transfer unit was designed, including a transfer needle, a transfer base, a buffer assembly, and a transfer drive mechanism. The buffer assembly consists of a guide, an elastic element, and a limiting element, which can deform under external pressure to prevent damage and blockage of the transfer needle, and is equipped with a sensing component for alarm.
Benefits of technology
It effectively reduces damage and clogging of the transfer needle, improves the stability and accuracy of liquid transfer, and ensures the continuity and precision of the detection process.
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Smart Images
Figure CN2025091799_09072026_PF_FP_ABST
Abstract
A liquid transfer unit (10) and apparatus, and an automatic testing device. The liquid transfer unit (10) comprises a transfer needle (11), a transfer base (12), a buffering assembly (13), and a transfer driving mechanism. The transfer base (12) is provided with a mounting cavity (121) and a first through hole (122) which are communicated with each other, and at least a portion of the buffering assembly (13) is arranged in the mounting cavity (121); one end of the transfer needle (11) passes through the buffering assembly (13) and the first through hole (122) and extends out of the transfer base (12), and the other end of the transfer needle is connected to the transfer driving mechanism; and the transfer driving mechanism drives the transfer needle (11) to aspirate and dispense a liquid to be transferred. At least a portion of the buffering assembly (13) is capable of deforming when the transfer needle (11) is pressed by an external force. During liquid transfer, if the transfer needle (11) is improperly positioned, the transfer needle (11) may come into hard contact with other objects, and in this case, the objects will press the transfer needle (11) in the reverse direction. However, since the buffering assembly (13) is capable of deforming under the action of pressing, the transfer needle (11) is enabled to move upward under force, thereby effectively reducing damage to the transfer needle (11) and avoiding blockage of the transfer needle (11).
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