Early warning device used for fire prevention and extinguishment in building

Abstract

The invention discloses an early warning device used for fire prevention and extinguishment in a building. The early warning device comprises a valve, a pressure relief port is formed in the left sideof the valve, fixed rods are arranged on the upper side and the lower side of the pressure relief port respectively, the right ends of the fixed rods are fixedly connected with the left side of the valve, a supporting plate is fixedly connected to the ends, away from the valve, of the fixed rods, two symmetrically-distributed telescopic rods are fixedly connected to the left side of the supporting plate, a pressure relief block is fixedly connected to the ends, away from the supporting plate, of the telescopic rods, a seal pad is arranged on the surface of the pressure relief block, the outerwalls of the telescopic rods are sleeved with first springs, the ends, away from the telescopic rods, of the first springs are fixedly connected with the left side of the pressure relief block, and first sliding blocks are fixedly connected to the upper side and the lower side of the pressure relief block respectively. Pressure relief can be performed inside the valve effectively, a pressure relief mechanism can be convenient to install and detach, and meanwhile the connecting position of a water pipe and the valve can be effectively prevented from loosening when water is introduced.

Description

technical field [0001] The invention relates to the technical field of building fire prevention and fire extinguishing, in particular to an early warning device for building fire prevention and fire extinguishing. Background technique [0002] Fires caused by rotted power distribution cabinets, aging lines, short-circuited equipment, and improper operation of electrical equipment are the most common in enterprises. The main reason is that the power protection equipment does not play a good protective role, and cannot effectively protect the equipment and control the fire source caused by it when an electrical short circuit occurs. [0003] Most of the existing early warning devices for fire prevention and fire extinguishing in buildings are installed on the roof. When the pressure in the wet alarm valve is too high, the water pipes will easily break, and the staff need to repair them, which is too cumbersome and inconvenient. In some cases, the sudden flow of water will eas...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that in the prior art, when the pressure inside the valve clack is too high, it is easy to cause the water pipe to break, and the staff needs to repair it, which is too cumbersome and inconvenient. water, it is easy to cause the connection between the water pipe and the valve disc to become loose, thus affecting the normal use of the early warning device for building fire prevention and fire extinguishing, and a kind of early warning device for building fire prevention and fire extinguishing is proposed

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