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Sound-generating components, excitation mechanism, and injection pen
This utility model belongs to the field of injection pen technology, specifically relating to a sound-generating component, including: an end cap inserted into the rear end of the upper pen body; a fixing sleeve inserted into the end cap, the side wall of the fixing sleeve having a sliding groove; a striking sleeve inserted into the fixing sleeve, the side wall of the striking sleeve having a striking block, the striking block being inserted into the sliding groove, and a striking spring provided at the front end of the striking block, the striking spring being adapted to push the striking block along the sliding groove to the rear end after the injection pen is activated, so as to strike the front end wall of the end cap to generate sound; in short, a striking block is provided on the side wall of the striking sleeve and is slidably disposed in the sliding groove, after the injection pen is activated, the striking spring is released to push the striking block to strike the front end wall of the end cap to generate sound, ensuring accurate sound generation after injection is completed.
Owner:JIANGSU WANHAI MEDICAL INSTR CO LTD