No-frame fusible alloy sprinkler nozzle

Abstract

A no-frame fusible alloy sprinkler nozzle (containing slag type nozzle, vertical nozzle, side-wall nozzle and common nozzle) disclosed by the invention is composed of a valve core, a valve lever, a screw cap, a fusible head, a splash plate, a valve body, a sealing ring and a nozzle body. The structural form of nozzle body is changed and the frame is eliminated for eliminating the accident potential existing because of the defective workmanship in the frame production process, and the system reliability is increased. The no-frame blocking at the outside of splash plate causes the sprinkle more uniform. A valve type structure is adopted for replacing the offset releasing mechanism and blanking adapter. The problems of accumulation phenomenon, elastic part fatigue, etc. which likely occur in traditional fusible nozzle is settled. The valve core position is automatically balanced through a back pressure cavity for widening the adaptability range of locking force and facilitating the installation and debugging. The fusible head is installed in a visible position for obtaining better temperature sensing effect and increased action sensitivity. Simultaneously, the no-frame fusible alloy sprinkle nozzle of the invention has the advantages of simplified manufacturing technology, reduced production cost and increased market competitiveness. The no-frame fusible alloy sprinkle nozzle of the invention is especially suitable for the important occasion which must be kept dry.

Description

technical field [0001] The invention relates to a fusible alloy sprinkler head, in particular to a frameless fusible alloy sprinkler head with high action sensitivity and reliability used in automatic fire extinguishing systems. Background technique [0002] In the automatic fire extinguishing system, as one of the patron saints of people's life and property, the fusible alloy sprinkler head (including: pendant sprinkler, vertical sprinkler, side wall sprinkler, ordinary sprinkler, etc.) is responsible for monitoring the fire and implementing fire fighting Fire has two major missions. Each fusible alloy sprinkler head is given a protected area. If a fire occurs in the area, when the temperature reaches the melting temperature set by the fusible alloy, the fusible alloy will melt immediately and the bias will be released. The mechanism is unstable, and the plug is thrown to one side under the action of system pressure and spring force; when the fire water pours out, the press...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to change the structure of the main body of the sprinkler head and remove the frame, so as to eliminate the hidden dangers of accidents due to the process defects in the frame production process. The valve structure composed of valve body, valve core and valve stem replaces the offset release mechanism and plug, and the valve body is used as the support of the splash plate, which solves the possible accumulation phenomenon of traditional fusible nozzles and the fatigue of elastic parts problems; through the back pressure chamber to automatically balance the position of the spool, the locking force adapts to a wider range, which is convenient for installation and debugging; the fusible alloy is set at the display position, the temperature sensing effect is better, and the action sensitivity is improved

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