| 摘要 |
A toy gun gas intake control mechanism includes a holder frame, an impact member having an elongated pivoted with its bottom end to the holder frame, a striking block, a pivot axle that pivotally connects the striking block to the top end of the elongated base and a spring member for revering the striking block, a retaining block supported on a spring member in the holder frame and having a retaining notch for retaining the outer end of the pivot axle. When firing a bullet, the bolt body of the toy gun moves forwards, the striking block strikes a seal member to open a gas inlet, and the pivot axle is moved out of the retaining notch of the retaining block for allowing upward displacement of the retaining block. When the bolt body moves backward after firing, the retaining block is forced downwards to the inside or the holder frame by the bolt body, the outer end of the pivot axle is engaged into the retaining notch, and the striking block is returned, causing the seal member to close the gas inlet again.
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