Smoke detection device for building fire-fighting equipment

By introducing a negative pressure structure into the smoke sensing detection device of building fire protection facilities and sucking external flue gas using negative pressure fan blades, the problem of airflow flow in the prior art cannot be inhaled, and the detection accuracy and practicality are improved.

CN222671790UActive Publication Date: 2025-03-25ANHUI DAYUE TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202421069835.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-16
Publication Date
2025-03-25
Estimated Expiration
2034-05-16

AI Technical Summary

Technical Problem

When the fan blades rotate, the smoke sensing detection device of existing building fire protection facilities causes internal airflow to flow and discharge from the smoke outlet, and cannot inhale the smoke generated by external combustion, affecting the accuracy of detection and reducing the practicality of the device.

Method used

A smoke sensing detection device with a negative pressure structure is designed to generate negative pressure by rotating the negative pressure fan blade, sucking in external smoke to ensure that smoke and dust can enter the detection device.

Benefits of technology

Through the design of the negative pressure structure, the efficiency and speed of the smoke sensing detection device are improved, the smoke can be effectively inhaled, and the detection accuracy and practicality are improved.

✦ Generated by Eureka AI based on patent content.
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Abstract

The utility model relates to the technical field of smoke detection devices of building fire-fighting facilities, and solves the problems that fan blades rotate to drive air flow in the smoke detection device to flow and discharge the air flow from a smoke port, so that smoke dust generated by external combustion cannot enter the smoke detection device from the smoke port, and the accuracy of the smoke detection device is influenced. According to the scheme, the problem that the practicability of the smoke detection device is not high is solved. The building fire-fighting facility smoke detection device comprises a chassis, a support is fixedly connected to the inner bottom wall of the chassis, a smoke detector is fixedly connected to the top surface of the support, a flow gathering cover is arranged on the top surface of the chassis, a negative pressure structure is arranged on the inner bottom wall of the flow gathering cover, and a mounting structure is arranged on the bottom surface of the chassis. The negative pressure structure comprises a cross rod arranged on the inner bottom wall of the flow gathering cover, the top face of the cross rod is rotationally connected with a connecting rod, negative pressure fan blades are arranged at the top end of the connecting rod, and the connecting rod is fixedly connected to the output end of the driving motor.
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