Portable toxic and harmful gas detection early warning device

By using a wristband-style portable toxic and harmful gas detection device, which utilizes spiral blades to drive airflow and an electric heater to scrape away water droplets, the problem of low detection accuracy in humid air is solved, achieving high-precision and safe gas detection and improving the portability of the device.

CN121856486APending Publication Date: 2026-04-14ZHONG AN HESHUN INTERNET OF THINGS TECH (SHANDONG) CO LTD
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Patent Information

Application Number
CN202610171758.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-06
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing portable toxic and harmful gas detection devices cannot effectively detect gases in humid environments, as the harmful gases cannot make effective contact with the sensor, resulting in reduced detection accuracy and posing safety hazards.

Method used

It adopts a wristband structure, which includes a detection mechanism, a ventilation mechanism and an extension mechanism. It uses spiral blades to drive airflow, combined with an electric heater and sweeping blades to scrape away water droplets. Heat is transferred through a heat-conducting metal belt, extending the air intake position and increasing the detection range, thereby improving detection accuracy and portability.

Benefits of technology

It improves detection accuracy, avoids the influence of moisture on the sensor, increases the detection range, protects the safety of testing personnel, saves energy consumption, and enhances the portability of the device.

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Abstract

The invention discloses a portable toxic and harmful gas detection early warning device, and relates to the technical field of air pollution detection. The portable toxic and harmful gas detection early warning device comprises a wrist strap, a device box is fixedly connected to the top of the wrist strap, a buckle is fixedly connected to the bottom of the wrist strap, and a detection mechanism is fixedly connected to the interior of the device box. According to the portable poisonous and harmful gas detection early warning device, the spiral blade is driven, external air is pushed into the ventilation pipe through the air inlet pipe, meanwhile, the gas is heated, contact between the detection sensor and the air is promoted, the detection precision is improved, meanwhile, water drops are not prone to be condensed on the surface of the detection sensor through the heated air, and the detection accuracy is improved. Meanwhile, the sweeping blades are pushed by air flow, so that water attached to the surface of the detection sensor is scraped, the detection precision is improved, the situation that harmful gas cannot be detected due to the fact that the sensor is affected is avoided, and the effect of protecting detection personnel is achieved.
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