Regional measuring device in annular part gap

The utility model provides a regional measuring device in annular part gap, including can with surface contact's in the annular part head part, can drive the head part can drive along straight reciprocating motion's driving medium the power of driving medium motion is inputed the piece and can be supported the supporting seat of driving medium, wherein, the head part is three for being no less than, all the circular direction interval arrangement is followed to the head part, the driving medium corresponding to the head part is provided with a plurality ofly, every transmission parts connection has one the head part, the driving medium set up in on the supporting seat, power input with transmission parts connection is in order to drive all driving medium simultaneous movement. The utilitymodel discloses can improve measurement of efficiency. 本实用新型提出种环状零件缝隙区域测量装置，包括可与环状零件内表面接触的顶件，可带动所述顶件沿直线往复运动的传动件，可带动所述传动件运动的动力输入件以及可支撑所述传动件的支撑座；其中，所述顶件为不少于三个，所有所述顶件沿圆形方向间隔排列；所述传动件对应于所述顶件设置有多个，每个所述传动件连接有个所述顶件，所述传动件设置于所述支撑座上；所述动