Water pipeline connecting structure for fire truck and fire truck with same

Abstract

The invention discloses a water pipeline connecting structure for a fire truck. The water pipeline connecting structure comprises a first pipe (1) and a second pipe (2), which can rotate relatively around a rotating axis, the rotating axis is vertical to the axial directions of the first pipe and the second pipe; in addition, the water pipeline connection structure also comprises a rotary joint (3), one end of the rotary joint is communicated with the first pipe, the other end of the rotary joint is connected with the second pipe and the rotation center of the rotary joint is coaxial with the rotating axis. The invention also discloses a fire truck provided with the water pipeline connecting structure. Through adoption of the technical scheme, the on-way resistance of a water pipeline can be reduced greatly, pressure loss can be lowered and the injection distance and flow of water injected from a vehicle-mounted water spraying device can be improved; moreover, the water pipeline connecting structure has good fire resistance and is hardly aged; in addition, the water pipeline consisting of hard pipes has excellent sealing performance and the pressure resistance and the safety of the water pipeline of the fire truck can be improved remarkably.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a waterway connection structure of a fire truck, and also to a fire truck with the waterway connection structure. Background technique [0002] The waterway of the fire truck includes the boarding waterway and the offloading waterway. The oncoming waterway and the offloading waterway are connected by the on / off rotary joint, so that the water that gets off the truck is transported to the water cannon installed on the onboard vehicle through the waterway. , in order to carry out high-altitude fire fighting operations. The boarding waterway of the fire truck is usually arranged along the boarding waterway of the fire truck, so the boarding waterway needs to move along with the boarding action. The action of getting on the vehicle includes some slewing motions and luffing motions, so the corresponding boarding waterway also needs to be bent and rotated accordingly, which is us...

AI Technical Summary

Problems solved by technology

[0003] Since the lining material of the hose is usually rubber, the fluid resistance of the waterway in the hose section is relatively large, resulting in a large pressure loss, which significantly reduces the range and flow of water from the water spray device on the vehicle.

And because the hose is made of rubber, its fire resistance and service life are also limited to a certain extent. After a certain number of years of use, there is a hidden danger of tube explosion as the rubber ages.

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