| 摘要 |
A grease gun with a rotary oil injection tube comprises an oil storage tank, a valve seat, an oil injection tube and a press rod. The oil storage tank is hollow round cylinder with an opening in the front end. The oil storage tank serves to store grease. The press rod is a long rod pivotally installed to one side of the valve seat. The user can press the press rod for extruding grease. The valve seat is formed at a front end of the oil injection tube and the front surface thereof is installed with a tilt surface. The tilt surface is formed with a tilt through hole which is communicated with the oil storage tank. Thereby, the rotary seat of the oil injection tube can pass through the tilt through hole and is communicated with the tilt through hole. Thereby, a grease gun with a rotary oil injection tube is formed.
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