| 摘要 |
PROBLEM TO BE SOLVED: To provide a packer for injecting mortar, in which an inflation part is inflated by applying pressure thereto in a compression direction, capable of easily and efficiently inflating the inflation part.SOLUTION: The packer for injecting mortar comprises: a cylindrical injection shaft 3; rubber holders 4 and 5 installed around a front end outer periphery and a rear end outer periphery of the injection shaft respectively to move freely in a longer direction of the injection shaft; a plurality of inflation parts 6 which are installed around the periphery of the injection shaft between the rubber holders to move freely in a longer direction of the injection shaft, and are inflated to an outer peripheral direction by applying compression pressure thereto; a packer part 2 including a lock nut 8 coupled to the front end of the injection shaft; and a cylinder part 11 disposed on the base end of the packer part. The cylinder part comprises: a sealed cylinder body 12; a rod 16 penetrating the cylinder body and being coupled to the injection shaft in the front side; and a piston 19 installed around the rod in the cylinder body. In the cylinder part, there is formed a channel whose front end is open in the cylinder body and base end is open to the outside as well as a receiving space 27 adjacent to the front surface of the piston so as to receive actuation liquid. |
