Fire-fighting lance with motor

Abstract

The utility model relates to a fire-fighting lance with a motor, which is characterized in that a driving motor is fixedly arranged below the front of a handle in the middle of the fire-fighting lance, an elastic alloy drill bit in the shape of a shell is arranged in front of the motor, the front part of the alloy drill bit is formed by wrapping six blades and covers a nozzle, and a plurality of water outlet holes are arranged at the front ends of the blades. And the alloy drill bit can rotate under the driving of the motor. During high-speed rotation, the six thicker and heavier blades at the front part can be completely opened under the action of centrifugal force, and the nozzles are exposed to directly spray water. In the later period of fire extinguishing of a fire brigade, residual fire piles exist around a fire scene, the six blades of the fire-fighting lance are in a closed state and poke into the fire piles, the alloy drill bit of the motor is started to drill into the residual fire piles to spray water, and when the motor drives the alloy drill bit to rotate at high speed, the blades at the front end rotate at high speed to open to scatter the fire piles, expose the nozzle and spray water columns to extinguish fire. Fire piles and residual fire sources are thoroughly eliminated.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing equipment technology, and in particular to the use of fire hoses in special scenarios, which is a fire hose with a motor. Background Technology

[0002] In the later stages of firefighting, the fire has weakened considerably, leaving behind piles of ashes and partially burned materials. At this point, conventional fire hoses can only spray water onto the surface of the embers, which quickly run off, wasting water. Even though the surface fire is extinguished, the interior remains hot and still contains embers, often compacted by collapsed materials. If water isn't thoroughly sprayed into these embers, they can reignite, igniting further flammable materials. Faced with this situation, existing fire hoses can only spray the surface or first break up the embers with other tools before spraying water; it's difficult to directly insert the hose into the remaining embers to extinguish the remaining fire. Summary of the Invention

[0003] To address the aforementioned problems, this utility model proposes a fire hose with an electric motor, which can be inserted into a residual fire pile to spray water from inside the fire pile and extinguish the remaining fire inside.

[0004] This utility model is implemented as follows: A fire hose with a motor includes a metal water pipe and a nozzle. A central handle is fixedly installed in the middle of the water pipe, and a rear handle is fixedly installed at the rear. A drive motor is fixedly installed below and in front of the central handle. In front of the motor, the water pipe wall has two concentric rings of front and rear pipe clamps that bulge outwards around the water pipe. A flexible alloy drill bit, shaped like a shell casing, has a front part consisting of six blades that cover the nozzle. The rear part is a cylindrical structure that is rotatably connected to the front and rear pipe clamps. The alloy drill bit can rotate at high speed driven by the motor, and the six blades can open when rotating at high speed.

[0005] Furthermore, the rear of the alloy drill bit is fixedly provided with a front metal rib and a rear metal rib. The outer contour of the front metal rib is hexagonal and is integral with the six cutting blades. The inner contour is circular and is tightly attached to and rotatably connected to the front tube clamp. The rear metal rib is circular and is tightly attached to and rotatably connected to the rear tube clamp.

[0006] Furthermore, the drive wheel of the motor and the rear metal rib are located on the same cross-section, and the drive wheel drives the rear metal rib and the alloy drill bit to rotate as a whole.

[0007] Furthermore, the tip of the alloy drill bit to the front metal rib is formed by six blades, with multiple holes respectively provided at the tip of each blade.

[0008] Furthermore, the longitudinal section of the blade is thickest at the tip and thinnest in the rear quarter, with a smooth transition in thickness from front to back.

[0009] Furthermore, the motor can be a large-diameter hollow shaft motor fixedly installed in front of the central handle, driving the rear metal rib to rotate.

[0010] Furthermore, the motor is powered by a battery or an external power source, with the external power supply cable running along the water pipe and fire hose.

[0011] Furthermore, the motor control button is located on the front side of the rear handle, and multiple speed settings are provided.

[0012] Furthermore, the front metal rib and the front tube clamp, and the rear metal rib and the rear tube clamp can be connected by rolling bearings.

[0013] Furthermore, the motor, drive wheel, and rear metal rib are all protected by a protective cover made of 2 mm thick steel plate.

[0014] A fire hose with an electric motor has a total length of 1.8 meters to 2.4 meters.

[0015] The beneficial effects of this invention are as follows: The addition of a motor-driven blade to the front of a conventional fire hose reel allows the six blades to be closed at low speeds, enabling the alloy drill bit to penetrate the remaining embers and inject water. At high speeds, the blades open to disperse the embers and spray water to extinguish the fire. This solves the problem of completely extinguishing remaining embers composed of residual ash and semi-burnt materials in the later stages of firefighting. It also completely disperses the embers and eliminates any remaining fire sources within the embers. Attached Figure Description

[0016] Figure 1 This is the front view of the utility model (in this document, "front" refers to the left side of the figure; "rear" refers to the right side of the figure).

[0017] Figure 2 This is an axial cross-sectional view of the present invention;

[0018] Figure 3 This is a side view of the present invention;

[0019] Figure 4 This is a cross-sectional view of the utility model (AA).

[0020] Figure 5 This is an axial cross-sectional view of the high-speed rotating blade of the alloy drill bit of this utility model when it is open.

[0021] In the diagram: 0. Alloy drill bit, 1. Water pipe, 2. Nozzle, 3. Middle handle, 4. Rear handle, 5. Motor, 6. Drive wheel, 7. Front metal rib, 8. Rear metal rib, 9. Front pipe clamp, 10. Rear pipe clamp, 11. Protective cover, 12. Cutting tool, 13. Rear quarter section. Detailed Implementation

[0022] Example:

[0023] A type of fire hose with an electric motor, see attached. Figure 1 To be continued Figure 5 This fire hose includes a metal water pipe 1 and a nozzle 2. A central handle 3 is fixedly installed in the middle of the water pipe 1, and a rear handle 4 is fixedly installed at the rear. The feature is that a drive motor 5 is fixedly installed below and in front of the central handle 3. In front of the motor 5, the water pipe 1 has two concentric rings, a front clamp 9 and a rear clamp 10, that bulge outwards around the water pipe 1. A flexible alloy drill bit 0, shaped like a shell casing, has a front portion consisting of six blades 12 encasing the nozzle 2. The rear portion is a cylindrical structure rotatably connected to the front clamp 9 and the rear clamp 10. Driven by the motor 5, the alloy drill bit 0 can rotate. When rotating at high speed, due to centrifugal force, all six blades 12 at the front of the thicker and heavier alloy drill bit 0 will open completely.

[0024] The alloy drill bit 0 is fixedly provided with a front metal rib 7 and a rear metal rib 8 at its rear. The outer contour of the front metal rib 7 is hexagonal and integral with the six cutting blades 12, while the inner contour is circular. It is tightly attached to and rotatably connected to the front clamp 9. The rear metal rib 8 is circular and is tightly attached to and rotatably connected to the rear clamp 10. This rotatable connection ensures that the alloy drill bit cannot move along the rotation axis.

[0025] The drive wheel 6 of the motor 5 and the rear metal rib 8 are located on the same cross-section. The drive wheel 6 drives the rear metal rib 8 and the alloy drill bit 0 to rotate as a whole. If belt drive is used, the outer ring of the rear metal rib 8 and the drive wheel 6 has belt grooves. Alternatively, if gear drive is used, the outer ring of the rear metal rib 8 and the drive wheel 6 has meshing teeth.

[0026] The tip of the alloy drill bit 0 to the front metal rib 7 is formed by six blades 12, with multiple holes respectively provided at the tip of each blade 12. When the fire hose is aimed at the remaining fire, the motor 5 is started to rotate at low speed, allowing the alloy drill bit 0 to drill into the remaining fire and spray water into the interior.

[0027] As attached Figure 5As shown, the longitudinal section of the blade 12 is thickest at the tip and thinnest in the rear quarter, with a smooth transition in thickness from front to back. The control button for the motor 5 is located on the front side of the rear handle 4, and it has multiple speed settings. When the fire hose enters the fire and is switched to the high setting, the motor 5 rotates at high speed. Under the action of centrifugal force, the six blades at the tip of the alloy drill bit 0 gradually open completely. The centrifugal force of the blade 12 disperses the remaining fire, and at the same time, the nozzle 2 is fully exposed, and the high-speed water flow completely extinguishes the fire inside.

[0028] The motor can be a large-diameter hollow shaft motor, fixedly installed in front of the central handle 3, directly driving the rear metal rib 8 to rotate. The motor 5 is driven by battery power or an external power source, with the external power cable running along the water pipe 1 and the fire hose.

[0029] The front metal rib 7 and the front tube clamp 9, and the rear metal rib 8 and the rear tube clamp 10 can be connected by rolling bearings.

[0030] The motor 5, drive wheel 6, and rear metal rib 8 are all protected by the protective cover 11 made of 2 mm thick steel plate.

[0031] A fire hose with an electric motor has a total length of 1.8 meters to 2.4 meters.

[0032] The beneficial effects of this invention are as follows: The addition of a motor-driven blade to the front of a conventional fire hose reel allows the six blades to be closed at low speeds, enabling the alloy drill bit to penetrate the remaining embers and inject water. At high speeds, the blades open to disperse the embers and spray water to extinguish the fire. This solves the problem of completely extinguishing remaining embers composed of residual ash and semi-burnt materials in the later stages of firefighting. It also completely disperses the embers and eliminates any remaining fire sources within the embers.

[0033] Those skilled in the art can make various changes and modifications without departing from the spirit of this utility model. The technical scope of this utility model is not limited to the contents of the specification; its protection scope must be determined by the scope of the claims.

Claims

1. A fire-fighting lance with an electric motor, comprising a metal water pipe (1) and a nozzle (2), a middle handle (3) is fixedly installed in the middle of the water pipe (1), and a rear handle (4) is fixedly installed at the rear, characterized in that, The driving motor (5) is fixedly installed below the front of the middle handle (3), and in front of the motor (5), the water pipe (1) wall protrudes outward in front of and behind two circles to surround the front pipe hoop (9) and the rear pipe hoop (10) of the water pipe (1), the elastic alloy drill bit (0) in the shape of a shell of a cannonball is composed of six blades (12) wrapped together in front, covers the nozzle (2), and the rear part is a cylindrical structure rotatably connected with the front pipe hoop (9) and the rear pipe hoop (10), the alloy drill bit (0) can rotate at high speed through the driving of the motor (5), and the six blades (12) can be spread out when rotating at high speed.

2. The fire monitor with an electric motor according to claim 1, characterized in that The rear part of the alloy drill bit (0) is fixedly provided with a front metal rib (7) and a rear metal rib (8), the outer contour of the front metal rib (7) is in the shape of a hexagon and is integrated with the six blades (12), the inner contour is circular, and the front metal rib (7) is tightly and rotatably connected with the front pipe hoop (9); the rear metal rib (8) is circular, and the rear metal rib (8) is tightly and rotatably connected with the rear pipe hoop (10).

3. The fire monitor with an electric motor according to claim 2, characterized in that The driving wheel (6) of the motor (5) and the rear metal rib (8) are located on the same cross section, the driving wheel (6) drives the rear metal rib (8) and the alloy drill bit (0) to rotate as a whole.

4. The fire monitor with an electric motor according to claim 2, characterized in that The tip of the alloy drill bit (0) to the front metal rib (7) is wrapped by the six blades (12), and a plurality of holes are respectively arranged at the tip part of each blade (12).

5. The fire gun with motor according to claim 1, characterized in that, The longitudinal section of the blade (12) is thickest at the tip, and the blade is thinnest at the rear quarter (13), and the thickness is smoothly transitioned from front to back.

6. The fire gun with an electric motor according to claim 2, characterized in that, The motor (5) is fixedly installed in front of the middle handle (3) by using a large-diameter hollow shaft motor to drive the rear metal rib (8) to rotate.

7. The fire gun with an electric motor according to claim 3, characterized in that, The driving energy source of the motor (5) adopts a battery power supply or an external power supply, and the cable of the external power supply is led along the water pipe (1) and the fire hose.

8. The fire gun with an electric motor according to claim 3, characterized in that, The control button of the motor (5) is arranged on the front side of the rear handle (4) and is provided with a plurality of speed gears.

9. The fire gun with motor according to claim 2, characterized in that, Rolling bearings can be used to connect between the front metal rib (7) and the front pipe hoop (9) and between the rear metal rib (8) and the rear pipe hoop (10).

10. The fire gun with motor according to claim 1, characterized in that, The motor (5), the driving wheel (6), and the rear metal rib (8) are all protected by a protective cover (11) made of a 2mm-thick steel plate.

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