Multifunctional fire-fighting water testing device nozzle

Abstract

The invention relates to a multifunctional fire-fighting water testing device nozzle. The multifunctional fire-fighting water testing device nozzle comprises a water testing nozzle body and a pressuregauge arranged on the water testing nozzle body, wherein the water inlet end of the water testing nozzle body communicates with a three-way valve, a cleaning mechanism for cleaning the interior of the water testing nozzle body is arranged in the three-way valve, the cleaning mechanism comprises a cleaning shaft arranged in a cavity of the three-way valve, the cleaning shaft and the water testingnozzle body are coaxially arranged, a plurality of connecting rods are hinged to the cleaning shaft and evenly distributed along the circumferential face of the cleaning shaft, elastic scraping rods for scraping the side wall of the water testing nozzle body are arranged at the other ends of the connecting rods, elastic jacking assemblies used for jacking the connecting rods to move in the direction away from the axis of the cleaning shaft is arranged at the contact positions of the connecting rods and the elastic scraping rods, and a driving mechanism for driving the cleaning shaft to slide back and forth in the length direction of the axis of the water testing nozzle body is arranged at the end, away from the water testing nozzle body, of the cleaning shaft. The water testing nozzle hasthe advantages that the water testing nozzle body can be cleaned without disassembling when the water testing nozzle is not used, and the detection precision of the water testing nozzle is ensured.

Description

technical field [0001] The invention relates to the technical field of fire-fighting equipment, in particular to a nozzle of a multifunctional fire-fighting water testing device. Background technique [0002] During the installation of the fire-fighting water network, it is necessary to test the water pressure of the fire-fighting pipes in contact with the fire-fighting water network to ensure that the water pressure of the fire-fighting equipment can play a role in extinguishing the fire; There is a water pressure gauge on the nozzle, which can clearly detect the water pressure. [0003] Existing Chinese utility model that authorization announcement number is CN210409352U discloses anti-destructive fire hydrant pressure measuring device, comprises fire hydrant pressure measuring joint, pipe tooth joint and pressure relief hose; The tooth joint is threaded, the water outlet end of the fire hydrant pressure measurement joint is provided with a pressure relief interface, and ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned existing technical solutions have the following defects: due to the unavoidable impurities in the water, during the long-term use of the above-mentioned fire hydrant pressure measuring joint, some scale will inevitably remain on the inner side wall of the fire hydrant pressure measuring joint. It will have a certain impact on the detection accuracy of the fire hydrant detection pressure head

However, when cleaning the scale, it is necessary to remove the pressure measuring joint of the fire hydrant from the pipe network of the fire hydrant. The cleaning is cumbersome and needs to be solved urgently

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