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US 12,714,898 B2Granted
Firefighting motor and fire extinguishing device
AssigneeZhejiang Yuan Fire Fighting Equipment Co., Ltd.
InventorsGuojian Yang, Zhenyu Yang
Life of this patent
Estimating the term…
Abstract
A firefighting motor and a fire extinguishing device comprising the same are disclosed. The firefighting motor includes a stator, a rotor disposed outside the stator and rotating around the stator, and a coil winding disposed on the stator or the rotor, where a medium channel for a fire extinguishing medium to flow through is provided in the stator, and the medium channel runs through the stator.
Claims10
A fire extinguishing device comprising:
- a firefighting motor comprising:
- a stator;
- a rotor disposed outside the stator to rotate around the stator;
- and
- a coil winding disposed on the stator or the rotor,
- wherein the stator includes a medium channel for a fire extinguishing medium to flow through, and
- wherein the medium channel extends through the stator in a direction substantially parallel to a rotational axis of the rotor;
- a nozzle that rotates synchronously with the rotor and is in fluid communication with the medium channel;
- a connecting piece that connects the medium channel with the nozzle and establishes fluid communication therebetween;
- and
- a pivoting mechanism configured to drive the nozzle to pivot and installed on the firefighting motor to rotate together with the firefighting motor,
- wherein, when the rotor drives the nozzle to rotate, a motion trajectory of the nozzle forms a first plane,
- wherein, when the pivoting mechanism drives the nozzle to pivot, a motion trajectory of the nozzle forms a second plane perpendicular to the first plane, and
- wherein the pivoting mechanism comprises:
- a support frame installed on the rotor;
- an adjustment power source installed on the support frame;
- and
- a transmission mechanism connected to the adjustment power source and the nozzle and configured to transmit power output from the adjustment power source to the nozzle to drive the nozzle to pivot.
15 more elements
A fire extinguishing device comprising:
- a firefighting motor comprising:
- a stator;
- a rotor disposed outside the stator to rotate around the stator;
- and
- a coil winding disposed on the stator or the rotor,
- wherein the stator includes a medium channel for a fire extinguishing medium to flow through, and
- wherein the medium channel extends through the stator in a direction substantially parallel to a rotational axis of the rotor;
- a nozzle that rotates synchronously with the rotor and is in fluid communication with the medium channel;
- and
- a connecting piece that connects the medium channel with the nozzle and establishes fluid communication therebetween,
- wherein the connecting piece comprises:
- a connector, an end portion of which includes an axially extending limiting groove and an outer annular groove radially extending from the limiting groove, the limiting groove having a first limiting protrusion and a second limiting protrusion both extending radially outward;
- a steel ball confined within the outer annular groove and movable within a predetermined radial range;
- a movable sleeve sleeved on an outer periphery of the connector and comprising an end inclined surface and a radially inward protrusion extending from the end inclined surface, wherein the end inclined surface and the radially inward protrusion are configured such that, when the movable sleeve moves toward the first limiting protrusion, the end inclined surface pushes the steel ball to move radially inward within the outer annular groove, and when the movable sleeve moves to abut against the first limiting protrusion, the steel ball abuts against the radially inward protrusion;
- and
- an elastic member sleeved on the outer periphery of the connector, wherein one end face of the elastic member abuts against the radially inward protrusion of the movable sleeve, and another end face abuts against the second limiting protrusion of the connector.
13 more elements
Dependencies are inferred from the claim text.