Portable apparatus for detecting pipe angle and accessory thereof

The utility model discloses a portable pipe fitting angle detecting device which is used for detecting the error of the axial included angle error of the thread of a pipe fitting and is composed of a 180-degree detection guide screw 5, a transverse arm 4 and a groove-shaped platform 7 which are provided with internal thread guide screw holes, and an L-shaped retaining arm 8, and the utility model also discloses accessories of the portable pipe fitting angle detecting device. The transverse arm 4 and the platform 7 are connected with the 180-degree detection guide screw 5 through the internal thread guide screw holes and are locked at required positions through locking nuts 6. During the detection, the platform 7 can be directly placed on any plane or retained at the edge of a workbench 2 or a similar tabletop through the L-shaped retaining arm 8. The transverse arm 4, the platform 7, the 180-degree detection guide screw 5 and the L-shaped retaining arm 8 can be disassembled and placed together with the access