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Explosion-proof sound alarm

A sound alarm and explosion-proof technology, which is applied in the direction of electromagnetic audible signals, can solve the problems of high cost, low sound, and short transmission distance

Inactive Publication Date: 2015-01-07
无锡格林通安全装备有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These gas leakage sound and light alarms can be divided into explosion-proof sound alarms and intrinsically safe explosion-proof sound alarms: explosion-proof sound alarms have higher power, larger size, loud sound, but higher cost; The explosion-proof sound alarm is small in size and low in cost, but because it adopts an intrinsically safe method, the power of the product is limited, the sound is not very loud, and the transmission distance is not far

Method used

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  • Explosion-proof sound alarm

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0016] The structure of the explosion-proof type sound alarm of the present invention is as figure 1 As shown, it includes base 5, A / B potting compound 1, control circuit board 6, horn 7, end cover 3, explosion-proof disc 4, base 5 and end cover 3 are fixedly connected by threads to form an internal cylinder together Shaped cavity, the end of the explosion-proof sound alarm close to the base 5 is defined as the upper end, and the end close to the end cover 3 is defined as the lower end. A / B potting glue 1, control circuit board 6, and horn are arranged in sequence from the upper end to the lower end. 7. Several explosion-proof plates 4 (this invention is only described in the case of three explosion-proof plates 4), the opening end of the horn 7 is set towards the flame-proof plate 4, and the other end of the horn 7 is connected to the control circuit board 6...

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Abstract

The invention discloses an explosion-proof sound alarm which comprises a base, an A / B pouring sealant, a control circuit board, a horn, an end cover and a plurality of explosion-proof sheets, wherein the base and the end cover are fixedly connected with each other to jointly form an inside tubular cavity; the A / B pouring sealant, the control circuit board, the horn and the plurality of explosion-proof sheets are arranged in sequence from upper end to bottom end; the opening end of the horn is arranged towards the explosion-proof sheets, and the other end of the horn is connected with the control circuit board. The explosion-proof audible alarm has the benefits that compared with an intrinsically-safe sound alarm, the higher power can be outputted, the sound is larger, and the transmission to a farther distance can be performed; compared with a large-scale explosion-proof sound alarm, the output power is reduced, and the size can be reduced to a very large extent; meanwhile, due to the adoption of a directional transmission way, the sound of the explosion-proof sound alarm can also be transmitted over a long distance, the transmission range is only limited, and the alarm transmission to a farther distance can also be achieved as long as a transmission port of the sound alarm faces to the site environment frequently patrolled.

Description

technical field [0001] The invention relates to a sound alarm, in particular to an explosion-proof sound alarm. Background technique [0002] The sound and light alarm is a kind of alarm signal device used in dangerous places to send warning signals to people through sound and various lights. The explosion-proof audible and visual alarm is suitable for installation in places with explosive gas atmospheres containing IIC grade T6 temperature group. It can also be used in explosion-proof places in zone 1 and zone 2 that have explosion-proof requirements in petroleum, chemical and other industries, and can also be used in the open air and outdoors. When emergency situations such as accidents or fires occur at the production site, the control signal sent by the fire alarm controller activates the sound and light alarm circuit, and sends out sound and light alarm signals to complete the alarm purpose. It can also be used in conjunction with the manual alarm button to achieve sim...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B3/10
CPCG08B3/10
Inventor 陈荣
Owner 无锡格林通安全装备有限公司
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