| 摘要 |
The present invention relates to an injector for a tree which injects an agent solution into a tree. Especially, the injector for a tree has an improved structure that make the agent solution reliably injected in a tree. The injector comprises a cylinder member that includes a cylinder part, which contains the agent solution for a tree therein, and an injection tube part, which is formed on an end side of the cylinder part, is inserted into the tree, and includes an agent solution pathway for discharging the agent solution from the cylinder part into the tree; a piston member which is joined with the cylinder member to be able to move in a first direction approaching the injection tube part and in the opposite direction, and injects the agent solution in the cylinder part into the agent solution pathway when the piston moves in the first direction; a spring which elastically presses the piston member in the first direction; and a locking means which selectively prevents the piston member from moving in the first direction. |
