Large pitch angle compact long-range fire water monitor

Abstract

The invention discloses a large-pitch-angle compact type long-range fire water monitor. The large-pitch-angle compact type long-range fire water monitor comprises an output part, a rotational part and a base, which are rotationally connected in sequence, wherein the rotational part comprises a movable intermediate tube consisting of a monitor neck tube, a specially-shaped tube and a base tube, a first meshing pair arranged between the monitor neck tube and the specially-shaped tube, a second meshing pair arranged between the specially-shaped tube and the base tube, and driving components in contact with the two meshing pairs; the first meshing pair and the second meshing pair are driven by the driving components respectively, and the spherical rotation of the rotational part is realized. Compared with the prior art, the large-pitch-angle compact type long-range fire water monitor has the advantages that an original scheme for calibrating a monitor head to the axis by utilizing a 90-degree bend or a large-curvature-radius bend is eliminated, the duration between entering and ejecting of water flow is shortened, the frequency of turning of the water flow is reduced, and the rotation of the water flow in a pipeline is eliminated, so that the water flow is uniform and concentrated, a fire extinguishing range is expanded, the size of the monitor is reduced, an operation torque needed by pitching rotation is reduced, the fire extinguishing strength of a fireman is reduced, the power of a matched power source is reduced, and water source matched power needed by the corresponding fire extinguishing range is reduced by over 80 percent.

Description

technical field [0001] The invention relates to a technology in the field of robot firefighting equipment, in particular to a compact long-range firefighting water cannon with a pitch angle of -15°~+105°. Background technique [0002] In order to realize the left and right and pitching movements of the spraying direction of the existing fire monitor, its flow channel is composed of multiple 90° bends or a large radius of curvature flow channel is used to install the swivel joint. The above arrangement makes the water flow in the bend pipe of the fire monitor rotate. , Pressure dispersion and pressure difference increase affect the final injection distance, and the required control rotation torque is relatively large. [0003] After searching the prior art, it is found that Chinese Patent Document No. CN204522076U, published on 2015.08.05, discloses a kind of figure 1 The linkage swivel joint for the fire monitor shown includes: a single elbow, a swivel seat and a double elb...

AI Technical Summary

Problems solved by technology

[0002] In order to realize the left and right and pitching movements of the spraying direction of the existing fire monitor, its flow channel is composed of multiple 90° bends or a large radius of curvature flow channel is used to install the swivel joint. The above arrangement makes the water flow in the bend pipe of the fire monitor rotate. , pressure dispersion and pressure difference increase, affecting the final injection distance, and the required control rotation torque is relatively large

[0003] After searching the prior art, it is found that Chinese Patent Document No. CN204522076U, published on 2015.08.05, discloses a kind of figure 1 The linkage swivel joint for the fire monitor shown includes: a single elbow, a swivel seat and a double elbow that are sequentially rotated and connected, wherein: a single elbow, a rolling body arranged between the single elbow and the swivel seat, and a swivel seat constitute The first revolving pair, the double elbow, the rolling elements arranged between the double elbow and the revolving seat, and the revolving seat constitute the second revolving pair, but the cross-sectional diameter of the pipeline in this technology changes, which will affect the water flow. In addition, the rotating jet exists Dead angle, unable to spray to achieve full spherical range

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