Explosion-proof audible and visual alarm easy to install

An acousto-optic alarm, simple technology, applied in the directions of support structure installation, installation board safety device, electrical transmission signal system, etc., can solve problems such as inconvenience in production and assembly, and achieve the effect of saving fixed steps

Pending Publication Date: 2019-12-17
哈尔滨东方报警科技有限公司
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Abstract

The invention discloses an explosion-proof audible and visual alarm easy to install. The alarm comprises an upper cover, a lower cover and a lampshade. The top of the lower cover is connected with theupper cover; the top of the upper cover is connected with the lampshade; a buzzer is arranged in the lower cover, and a screw ring is positioned under the buzzer; a nylon column is arranged at the top of the buzzer; the top of the nylon column is connected with a fixing plate, the top of the fixing plate is connected with a supporting column, and the top of the supporting column is connected withan alarm lamp; a control circuit board is arranged on the fixed plate; a waterproof joint is arranged in the outer side of the upper cover; a second sealing ring is arranged at position where the lower cover and the upper cover are connected; a first sealing ring is arranged at position where the upper cover and the lampshade are connected; and the nylon column is fixedly connected with the fixedplate through a cross pan head screw. The circuit board is arranged between the upper shell and the lower shell, and the circuit board is extruded by the upper shell and the lower shell. A screw fastening step is omitted. The cost of part installation is reduced, and the assembly efficiency of the audible and visual alarm is greatly improved.

Application Domain

Mounting boards securingElectric transmission signalling systems

Technology Topic

EngineeringControl circuit

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  • Explosion-proof audible and visual alarm easy to install

Examples

  • Experimental program(1)

Example Embodiment

[0011] Example 1
[0012] An easy-to-install explosion-proof sound and light alarm, comprising an upper cover 5, a lower cover 10, and a lamp cover 1. It is characterized in that: the top of the lower cover 10 is connected to the upper cover 5; the top of the upper cover 5 is connected to the lamp cover 1; A buzzer 7 is arranged inside the lower cover 10, and a screw ring 8 is located below the buzzer 7; the top of the buzzer 7 is provided with a nylon column 6; the top of the dragon ball is connected to a fixed plate, and the top of the fixed plate is connected to a pillar. The top of the pillar is connected with an alarm light; the fixed board is provided with a control circuit board; the outer side of the upper cover 5 is provided with a waterproof connector 3; the connection between the lower cover 10 and the upper cover 5 is provided with a second sealing ring 9; The connection between the upper cover 5 and the lamp cover 1 is provided with a first sealing ring 2; the nylon column 6 and the fixing plate are fixedly connected by a cross pan head screw 4.
[0013] A film 11 is attached to the outer side of the upper cover 5.

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