Fixture for endoscopic inspection

1. A fixture for endoscopic inspection which is to be fixed to an access port of an engine for access by an endoscope, the fixture comprising:

an insertion direction regulating portion for regulating an access direction of an insertion portion of an endoscope connecting an external access port disposed on an exterior cover of the engine to an internal access port disposed on an exterior shroud of the engine; and

an installation direction regulating portion for uniquely regulating an installation direction so that the insertion direction regulating portion matches the access direction at a time of attachment to the external access port,

wherein the installation direction regulating portion is an index; and

the index is arranged such that, by matching the index with a flow direction of air of the engine, the installation direction is uniquely regulated so that the installation direction matches the access direction.

2. The fixture for endoscopic inspection according to claim 1 , wherein the insertion direction regulating portion includes a first hole axis having a predetermined angle with respect to a center axis in a longitudinal direction of a fixed cylinder portion connected to the installation direction regulating portion, the fixed cylinder portion being configured to be inserted into the external access port.

3. The fixture for endoscopic inspection according to claim 2 , wherein the insertion direction regulating portion includes a first insertion hole and a second insertion hole, and the first hole axis of the first insertion hole and a second hole axis of the second insertion hole are coaxial.