Self-voiced positioning pig

The self-emitting sound positioning pig uses airflow to drive a sound-emitting unit to produce a rhythm, which solves the problem of inaccurate positioning of the pig in the pipeline, ensures operational safety, and avoids the risk of the pig flying out.

CN224359088UActive Publication Date: 2026-06-16PIPIXIONG ROBOT (CHENGDU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PIPIXIONG ROBOT (CHENGDU) CO LTD
Filing Date
2025-06-11
Publication Date
2026-06-16

AI Technical Summary

⚠Technical Problem

Existing pipeline cleaning tools are not accurately positioned within the pipeline, which may lead to the risk of them getting stuck or flying out and injuring operators. The existing positioning method is also susceptible to the effects of lithium battery power failure, signal interference, etc., resulting in the loss of positioning signals.

⚗Method used

The self-emitting positioning pig is adopted. By setting a sound unit on the pig, the high-pressure airflow drives the airflow through the whistle hole in the cavity to emit a predetermined rhythm. The location is determined by the sound capture device or human ear, ensuring that the air pressure is balanced after the pig enters the station and preventing it from flying out.

🎯Benefits of technology

It achieves precise positioning of the pig, enhances operational safety, and avoids the risk of the pig flying out and injuring operators.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-sound positioning pig, specifically relates to pipeline cleaning technical field, including the sound unit of the boring hole in the bottom of sound source fixing spare insertion, the sound unit includes cavity part, and the multiple whistle holes that are distributed in the circumferential array are set up on it. The utility model discloses the whistle hole of pig when operating in the pipeline, and the sound that it sends is used for positioning, and after the in-station stop gas, its isobaric design can automatic pressure relief, and the operation safety when opening the pipeline is ensured.
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