A light detection type smoke detector based on plastic optical fiber conduction

Abstract

The invention provides a light-detection-type smoke detector based on plastic optical fiber transmission. The smoke detector comprises an upper shell, a smoke collector and an outer shell, wherein several installing holes are arranged on the upper shell; the smoke collector includes a main body formed through nesting a plurality of overturned bucket shape components; the main body possesses a first smoke collection channel formed by center leakage holes of each bucket shape component and a second smoke collection channel formed by gaps of each two bucket shape components; a high bench is arranged above the main body; the high bench possesses a first optical fiber clamping component and a second optical fiber clamping component which are separated from each other; the outer shell is connected to the upper shell to form a closed inner chamber; a bottom surface of the outer shell is sunkened from outside to inside so as to form a concave portion; a concave portion profile conforms to the smoke collector; a center of the concave portion is provided with a through hole connected to the inner chamber; the outer shell is provided with several convection holes; and a baffle plate is arranged at each convection hole in the inner chamber. The smoke detector of the invention possesses advantages that working is stable; an anti-interference capability is high; installation is simple; debugging is not needed and so on. The smoke detector can be widely used for various kinds of places to carry out fire hazard safety monitoring.

Description

technical field [0001] The invention belongs to the technical field of smoke detection, and in particular relates to an optical detection type smoke detector based on plastic optical fiber transmission, which forms a smoke detection network by interconnecting the plastic optical fibers. Background technique [0002] A smoke detector is a kind of sensing device that can detect a large amount of smoke generated by the burning of an open fire. At present, it is mainly divided into two categories: independent type and network type. The independent type of smoke detector has independent power supply, control and alarm modules inside. After detecting the smoke, it can judge whether there is a fire by itself, so as to send out a sound and light signal for warning; while the networked smoke detector is connected to a fire alarm network through a line, and when the smoke generated during a fire is detected, it will be sent to the alarm control. The feedback signal of the device can b...

AI Technical Summary

Problems solved by technology

At present, the technical challenges faced by smoke detectors include humid working environment, external interference, false alarms caused by dust accumulation, etc. In addition, most smoke detectors have relatively complicated structures and are inconvenient to disassemble and clean, which will also affect the smoke detector. Stability and detection sensitivity

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