| 摘要 |
A paint ball gun includes a barrel connected with a handle and a drop hole and an aperture are defined through a wall of the barrel. Paint balls can be supplied into the barrel via the drop hole. A linear motor is located in the barrel and drives a retractable driving rod which is connected to a push unit located in the barrel. An inlet is defined through a wall of the push unit and the inlet is moved with the push unit between a first position and a second position, the inlet is moved to the first position where the aperture is sealed and the paint ball enters the barrel. When the inlet is moved to the second position, the inlet is in communication with the aperture so that the paint ball is pushed by pressurized air introduced into the barrel via the aperture and the inlet.
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