| 摘要 |
A caulking gun includes a housing forming a handle and supporting a cartridge holder for receiving and holding a caulking cartridge. A flexible push plate is received through the housing to have a front end extending into the cartridge holder to carry a push disk. The housing has front and rear portions respectively receiving therein an advancer and a gripper through which the push plate extends. A guide roller is rotatably received in the housing rearward of the gripper. A rear end of the push plate extends through the gripper and is wrapped around the guide roller for further extension frontward to project outside and above the cartridge holder. When a trigger of the handle comprising a trigger is actuated to cause the advancer to advance the push plate frontward for extrusion of the caulking cartridge to dispense caulking, the gripper holds and prevents the push plate from returning rearward. |
