How is the external buckle hose interface designed in coordination with fire spray guns, fire hydrants and other equipment?
Publish Time: 2024-11-28
In the actual combat scenario of fire fighting and rescue, the external buckle hose interface is like a hub, closely cooperating with fire spray guns and fire hydrants to weave an efficient and reliable water supply and fire extinguishing network, which contains many exquisite design considerations.When coordinating with fire hydrants, the external buckle structure of the interface is the key point of fit. The specifications of the water outlet of the fire hydrant are unified, and the outer diameter and buckle groove shape and depth of the external buckle interface are precisely matched to ensure that the connection is tight and stable at the moment. The material selection takes into account the characteristics of the metal material of the fire hydrant. Most of them are corrosion-resistant and high-strength brass or aluminum alloys, which can withstand long-term outdoor placement erosion, and the thermal expansion and contraction coefficients are adapted. Regardless of the cold or heat, the connection is as tight as before. In the design of the internal flow channel, the transition from the large-caliber water flow channel of the fire hydrant to the hose interface, the gradual reduction in diameter and smooth inner wall reduce the "sudden change" loss of water flow, ensure that large-flow fire water flows smoothly into the hose, and allow water to rush to the fire scene without hindrance in an emergency.The connection of fire spray guns is even more ingenious. The interface end and the water inlet of the spray gun are like mortise and tenon in size, with extremely small tolerances. The external buckle is tightly fastened to the corresponding slot of the spray gun. The rotation locking mechanism is simple, efficient and firm, and can withstand the impact of high-pressure water flow without loosening. Considering the flexible and changeable operation of the spray gun, the jet direction needs to be flexibly adjusted. The hose interface is designed with a universal joint-like structure at the connection, allowing a certain angle of bending and twisting, so that firefighters can operate the spray gun handy without being constrained by rigid connections. In addition, in view of the differences in flow and pressure requirements of different types of fire spray guns (such as DC water guns and spray water guns), the flow coefficient of the interface inner chamber is finely adjusted to adapt to the best working state of the spray gun, so that the water flow can be ejected powerfully and accurately, and the atomization is uniform, meeting the requirements of various fire fighting tactics.From material compatibility, size adaptation to functional connection, the external buckle hose interface works in depth with fire hydrants and spray guns, gathering the strength of all parties, and turning into a solid and reliable "lifeline" for fire fighting, laying a solid foundation for protecting life and property.
