| 摘要 |
Continuously shooting pneumatic grease gun structure including an air chamber housing defining an elongated air chamber. A push hole extends from the air chamber through one end of the housing to an outer side. A piston is reciprocally axially movably disposed in the air chamber between a start position and an end position. A grease push rod is coaxially fitted in the push hole and synchronously movable along with the piston. A restoring spring is compressed between the end of the housing and the piston to resiliently keep the piston in the start position. A controlling valve is movably disposed on the housing between an open position and a close position. A shift air passage is formed in the body section controlling the air in the air chamber and moving the controlling valve from an open position to a closed position.
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