In-line detector for geometric deformation of non-metallic pipeline with automatic jam release function

An in-line detector for geometric deformation of a non-metallic pipeline with automatic jam release function, comprising:

• an adaptive module and a detection module, wherein the adaptive module includes a front mandrel, a first cup is disposed on the front mandrel, the first cup is configured to contact and seal an inner peripheral wall of a pipeline to form a first chamber and a second chamber which are separated from each other in a front-and-back direction of the first cup, an auxiliary support mechanism configured to always contact and seal the inner peripheral wall of the pipeline when the pipeline deforms is disposed on the first cup, a first pressure relief hole configured to communicate the first chamber and the second chamber is disposed on the front mandrel, and a control mechanism configured to control an opening degree of the first pressure relief hole and implement speed control is disposed in the first pressure relief hole;
• and
• the detection module includes a base, a power battery and a communication mechanism for connecting to an external device are disposed on the base, a second cup is disposed on the base, a detection mechanism is disposed between the second cup and the base, the communication mechanism is in signal connection to the detection mechanism and the control mechanism, respectively, the power battery is connected to the detection mechanism, the communication mechanism, and the control mechanism, respectively, the second cup is configured to contact the inner peripheral wall of the pipeline to form a third chamber and a fourth chamber which are separated from each other in a front-and-back direction of the second cup, the second chamber and the third chamber are located between the first chamber and the fourth chamber, the second chamber and the third chamber are in communication with each other, a second pressure relief hole configured to communicate the third chamber and the fourth chamber is disposed on the base, a connecting hole is disposed at an end of the base close to the front mandrel, the connecting hole has a frustum shape, a large end of the connecting hole is close to the front mandrel, the connecting hole is disposed along an axial direction of the pipeline, an end of the front mandrel matches the connecting hole, the end of the front mandrel is disposed in the connecting hole, a restoring mechanism is disposed between the end of the front mandrel and the base, and the restoring mechanism is configured to keep the front mandrel connected to the base and assist the end of the front mandrel in inserting into the connecting hole after the end of the front mandrel is disengaged from the connecting hole;
• the restoring mechanism includes a first spring, one end of the first spring is fixed on the base, another end of the first spring is fixed on the front mandrel, and the first spring is located in the connecting hole;
• and
• the control mechanism includes a cover plate and one or more stoppers, the cover plate covers an end of the first pressure relief hole located at the first chamber, one or more through holes are disposed in the cover plate, the one or more through holes are configured to communicate the first chamber and the first pressure relief hole, and a driving mechanism configured to drive the one or more stoppers to move and cause the one or more stoppers to block or open the one or more through holes is disposed on the front mandrel.