| 摘要 |
A feeding device for a caulking gun includes a frame, a trigger, a plunger shaft, a drive grip, a brake grip, two springs and a pressure release rod. A first recess and a second recess are defined in the frame. The plunger shaft extends through the frame and penetrates the drive grip, in the first recess, and the brake grip, in the second recess. The pressure release rod is slidably mounted between the drive grip and the brake grip. When the drive grip is moved back, due to a spring force, and presses the pressure release rod, the brake grip is pressed, to release the engagement with the plunger shaft, which releases the pressure on the caulking compound in the tube. Consequently the caulking compound does not flow out of the tube unless the trigger is squeezed and caulking compound is saved.
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