Helicopter forest fire fighting bucket operation device

By improving the structural design of the helicopter bucket and utilizing electric push rods, fixed pulleys, and gear transmission, the problem of the rope and sealing plug bearing high pressure during water transportation was solved, resulting in energy savings, increased water filling frequency, and enhanced fire extinguishing efficiency.

CN224039835UActive Publication Date: 2026-03-27JIANGSU HONGXIANG AVIATION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-11
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

Existing helicopter bucket fire extinguishing systems suffer from high pressure on the ropes and sealing plugs during water transport, leading to excessive power consumption and easy breakage of the electric actuator, thus affecting fire extinguishing efficiency.

Method used

The design incorporates a bucket body, a first U-shaped frame, a lifting and adjusting assembly, and a water outlet. Through a combination of an electric push rod, a fixed pulley, and a movable pulley, the rope winding action is made effortless, reducing the energy consumption of the electric push rod. The rack and pinion transmission drives the sealing plug to move downward, allowing the water to be discharged smoothly.

Benefits of technology

It reduces the energy consumption of the electric actuator, increases the number of times the water bucket can be filled, and enhances the durability and fire extinguishing efficiency of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a helicopter forest fire fighting water bucket operating device, which relates to the technical field of helicopter bucket fire extinguishment and comprises a water bucket body, a first U-shaped frame is fixedly connected to the middle of the upper end of the water bucket body, a lifting adjusting component is arranged at the lower end of the first U-shaped frame, and a water outlet hole is formed in the middle of the lower end of the water bucket body. The lifting adjusting assembly comprises an electric push rod fixedly connected to the right side of the lower end of the first U-shaped frame, the output end of the electric push rod is fixedly connected with a winding rope, the inner end of the winding rope abuts against a fixed pulley, a movable pulley is arranged on the lower portion of the fixed pulley, and the left portion of the winding rope is wound around the outer side of the movable pulley. And the middle part of the lower end of the movable pulley is fixedly connected with a movable column. Labor-saving action can be performed on the winding rope through the electric push rod, the fixed pulley and the movable pulley, energy output by the electric push rod is reduced, and the water filling frequency of the bucket body is increased.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of helicopter bucket fire extinguishing, concretely to a helicopter forest fire extinguishing fire fighting bucket operation device. BACKGROUND

[0002] Helicopter fire extinguishing is not limited by ground roads and traffic conditions, can fly to the designated place in a short time, has the characteristics of strong mobility and flexible use, wherein the bucket fire extinguishing is a direct fire extinguishing method for extinguishing forest fires by using the helicopter external hanging bucket to carry water and directly spraying water on the fire head and fire line from the air, the bucket for water spraying operation currently adopts metal frame and canvas enclosure, the upper part is open for water filling, the bottom is provided with a release valve, and the structure of the bucket is relatively simple.

[0003] The utility model discloses a helicopter forest fire extinguishing fire fighting bucket operation device in the utility model discloses a bucket body, the upper end opening of the bucket body is fixedly connected with the n-shaped plate along the radial direction, the upper surface middle part of the n-shaped plate is fixedly connected with the butt joint ring, the inner bottom of the bucket body is through the water outlet hole along the axial direction, the water outlet hole is equipped with the sealing plug that is adapted to it. Through the butt joint installation of the helicopter sling and the butt joint ring, the purpose of simplifying the connecting rope is achieved, then the end part of the connecting rope is moved by controlling the extension of the electric push rod, the sealing plug is moved up by the guide of the pulley, the sealing of the water outlet hole is cancelled, the water in the bucket body is poured out, the fire extinguishing operation is carried out, and the setting of the single connecting rope controlled by the electric push rod further avoids the winding of multiple ropes, but the problem that the rope and the sealing plug pressure in the bucket cannot be reduced by supporting the rope through a pulley, the phenomenon that the water in the bucket generates large pressure on the rope and the sealing plug during transportation is caused, finally the electric push rod is prone to power consumption when pulling the rope, and the rope end connected to the end of the electric push rod is prone to breakage, therefore, the utility model provides a helicopter forest fire extinguishing fire fighting bucket operation device. UTILITY MODEL CONTENTS

[0004] The utility model discloses a helicopter forest fire extinguishing fire fighting bucket operation device to solve the problems in the above background technology.

[0005] In order to achieve the above object, the utility model provides the following technical scheme: a helicopter forest fire extinguishing fire bucket operating device, including the bucket body, the bucket body upper end middle part is fixedly connected with first U-shaped frame, the first U-shaped frame lower end is provided with pull adjusting component, the bucket body lower end middle part is opened with the water outlet, the water outlet inner wall is slidably connected with the water outlet component, the pull adjusting component includes the electric push rod of fixed connection in the first U-shaped frame lower end right side, the electric push rod output end is fixedly connected with winding rope, the winding rope inner end abuts with the fixed pulley, the fixed pulley lower part is provided with the movable pulley, the winding rope left part is set up and is connected the movable pulley outside, the winding rope tail end is fixedly connected with the lower side lifting hook, the movable pulley lower end middle part is fixedly connected with the moving column, the moving column lower end is fixedly connected with the moving round plate, the moving round plate lower end both sides are fixedly connected with first rack, every first rack inner end is engagedly connected with the follow-up gear, the follow-up gear surface is fixedly connected with follow-up shaft and follow-up shaft penetrates follow-up gear, the follow-up gear is away from first rack one end and is engagedly connected with second rack, the second rack lower end is fixedly connected with water outlet component.

[0006] Preferably, the water outlet component includes a spring fixedly connected to the outer side of the lower end of the bucket body, the lower end of the spring is fixedly connected with an action plate, and the inner side of the upper end of the action plate is fixedly connected with a closure plug.

[0007] Preferably, the fixed pulley is fixedly connected with a lifting hook at both ends, and the lifting hook at the upper side is inserted into the lower end of the first U-shaped frame.

[0008] Preferably, the closure plug is slidably connected to the water outlet hole, and the outer diameter of the closure plug is matched with the inner diameter of the water outlet hole.

[0009] Preferably, the follow-up shaft is rotatably connected with a side plate on both sides through a bearing, and the lower end of the side plate is fixedly connected with the inner wall of the bucket body.

[0010] Preferably, the first U-shaped frame is fixedly connected with a second U-shaped frame at the end away from the bucket body, and the second U-shaped frame is arranged at the upper end middle part of the first U-shaped frame.

[0011] Preferably, the lower end of the second rack is fixedly connected to the upper end of the closure plug.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] 1. The utility model provides a water bucket body, first U-shaped frame, second U-shaped frame, pull regulation assembly and water outlet hole can complete when needing to discharge water in the water bucket body, at this time can through external power supply to power supply electric push rod, the output end of electric push rod drives winding rope to move down at this time, winding rope slides on the outer side of fixed pulley upper end at this time, the winding rope drives movable pulley to move up and in turn drives moving column and moving round plate to move up at this time, the moving round plate drives first rack to move up at this time, left first rack drives left follow-up gear to rotate clockwise at this time, left follow-up gear drives left second rack to move down at this time, right first rack drives right follow-up gear to rotate counterclockwise at this time, right follow-up gear drives right second rack to move down at this time, the utility model discloses can through electric push rod, fixed pulley and movable pulley to winding rope to save the effort of action, reduce the energy of electric push rod output, improve the number of water bucket body filling.

[0014] 2. The utility model discloses a water outlet hole and water outlet assembly can complete in the process of second rack moving down, the second rack drives the closure plug to move down and in turn drives the action plate to move down at this time, in this process, the spring is in the tensile state at this time, when the closure plug and water outlet hole are separated, the water in the water bucket body is discharged at this time. DRAWINGS

[0015] Figure 1 It is the whole structure schematic diagram of the utility model;

[0016] Figure 2 It is the whole cross section structure schematic diagram of the utility model;

[0017] Figure 3 It is the pull regulation assembly structure schematic diagram of the utility model;

[0018] Figure 4 It is the water outlet assembly cross section structure schematic diagram of the utility model.

[0019] In the drawing: 1, water bucket body;2, first U-shaped frame;3, second U-shaped frame;4, pull regulation assembly;41, electric push rod;42, winding rope;43, fixed pulley;44, hook;45, movable pulley;46, moving column;47, moving round plate;48, first rack;49, follow-up gear;410, follow-up shaft;411, side plate;412, second rack;5, water outlet hole;6, water outlet assembly;61, spring;62, action plate;63, closure plug. CONCRETE IMPLEMENTATION

[0020] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] Please refer to Figure 1 - Figure 4 The utility model provides a kind of technical scheme: a helicopter forest fire extinguishing fire bucket operating device, including bucket body 1, first U-shaped frame 2 is fixedly connected in the middle of bucket body 1 upper end, first U-shaped frame 2 lower end is provided with pull adjusting assembly 4, water outlet 5 is set in the middle of bucket body 1 lower end, water outlet 5 inner wall is slidably connected with water outlet assembly 6, pull adjusting assembly 4 includes the electric push rod 41 of fixed connection in the right side of first U-shaped frame 2 lower end, the output end of electric push rod 41 is fixedly connected with winding rope 42, winding rope 42 inner end is abutted with fixed pulley 43, dynamic pulley 45 is set in the lower part of fixed pulley 43, winding rope 42 left part is set around the outside of dynamic pulley 45, winding rope 42 tail end is fixedly connected with lower side lifting hook 44, dynamic pulley 45 lower end middle part is fixedly connected with moving column 46, moving column 46 lower end is fixedly connected with moving round plate 47, moving round plate 47 lower end both sides are fixedly connected with first rack 48, each first rack 48 inner end is meshingly connected with follow-up gear 49, follow-up gear 49 surface is fixedly connected with follow-up shaft 410 and follow-up shaft 410 penetrates follow-up gear 49, follow-up gear 49 is meshingly connected with second rack 412 away from first rack 48 one end, second rack 412 lower end is fixedly connected with water outlet assembly 6.

[0022] In the embodiment, water outlet assembly 6 includes spring 61 fixedly connected to the outer side of the lower end of bucket body 1, spring 61 lower end is fixedly connected with action plate 62, action plate 62 upper end inner side is fixedly connected with closure plug 63.

[0023] Specifically, the process of moving down the second rack 412 can be completed by the water outlet assembly 6, at this time the second rack 412 drives the closure plug 63 to move down and in turn drives the action plate 62 to move down, in this process, the spring 61 is in a stretched state at this time, when the closure plug 63 is separated from the water outlet hole 5, the water cup in the bucket body 1 is discharged at this time.

[0024] In the embodiment, the upper and lower ends of the fixed pulley 43 are fixedly connected with the lifting hook 44, and the upper lifting hook 44 is inserted into the lower end of the first U-shaped frame 2.

[0025] Specifically, the upper end of the fixed pulley 43 is fixedly connected with the lower end of the first U-shaped frame 2.

[0026] In the embodiment, the outer end of the closing plug 63 is slidingly connected with the water outlet hole 5, and the outer diameter of the closing plug 63 is matched with the inner diameter of the water outlet hole 5.

[0027] Specifically, it is ensured that the closing plug 63 does not leak during the operation.

[0028] In the embodiment, the follow-up shaft 410 is rotatably connected with the side plate 411 on both sides through bearings, and the lower end of the side plate 411 is fixedly connected with the inner wall of the bucket body 1.

[0029] Specifically, the side plate 411 can be provided to stably support the follow-up shaft 410.

[0030] In the embodiment, the first U-shaped frame 2 is fixedly connected with the second U-shaped frame 3 at one end away from the bucket body 1, and the second U-shaped frame 3 is arranged at the middle of the upper end of the first U-shaped frame 2.

[0031] Specifically, the second U-shaped frame 3 can be provided to fixedly connect the bucket body 1 and the pull wire on the helicopter.

[0032] In the embodiment, the lower end of the second rack 412 is fixedly connected with the upper end of the closing plug 63.

[0033] Specifically, it is ensured that the second rack 412 can directly work on the closing plug 63.

[0034] Working principle: when the water in the bucket body 1 needs to be discharged, the electric push rod 41 can be powered at this time, the output end of the electric push rod 41 drives the winding rope 42 to move downward at this time, the winding rope 42 slides on the outer side of the upper end of the fixed pulley 43 at this time, the winding rope 42 drives the movable pulley 45 to move upward and in turn drives the moving column 46 and the moving disc 47 to move upward at this time, the moving disc 47 drives the first rack 48 to move upward at this time, the left first rack 48 drives the left follow-up gear 49 to rotate clockwise at this time, the left follow-up gear 49 drives the left second rack 412 to move downward at this time, the right first rack 48 drives the right follow-up gear 49 to rotate counterclockwise at this time, the right follow-up gear 49 drives the right second rack 412 to move downward at this time, the second rack 412 drives the closing plug 63 to move downward in the process of moving downward of the second rack 412, and in turn drives the action plate 62 to move downward, in this process, the spring 61 is in a stretched state at this time, when the closing plug 63 is separated from the water outlet hole 5, the water in the bucket body 1 is discharged at this time, the utility model realizes that the winding rope 42 can be labor-saving by the electric push rod 41, the fixed pulley 43 and the movable pulley 45, reduces the energy output of the electric push rod 41, and improves the water filling frequency of the bucket body 1.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A helicopter forest fire extinguishing bucket handling device, comprising a bucket body (1), characterized in that: The first U-shaped frame (2) is fixedly connected to the upper middle part of the water bucket body (1), the pull adjusting assembly (4) is arranged at the lower end of the first U-shaped frame (2), the water outlet hole (5) is formed in the lower middle part of the water bucket body (1), the water outlet assembly (6) is slidably connected to the inner wall of the water outlet hole (5), the electric push rod (41) is fixedly connected to the right side of the lower end of the first U-shaped frame (2), the winding rope (42) is fixedly connected to the output end of the electric push rod (41), the fixed pulley (43) is abutted to the inner end of the winding rope (42), the movable pulley (45) is arranged at the lower part of the fixed pulley (43), the winding rope (42) is arranged outside the movable pulley (45) on the left side, the lower side hook (44) is fixedly connected to the tail end of the winding rope (42), the movable column (46) is fixedly connected to the lower middle part of the movable pulley (45), the movable circular plate (47) is fixedly connected to the lower end of the movable column (46), the first gear rack (48) is fixedly connected to the lower end of the movable circular plate (47) on both sides, the driven gear (49) is meshingly connected to the inner end of each first gear rack (48), the driven shaft (410) is fixedly connected to the surface of the driven gear (49) and penetrates through the driven gear (49), the second gear rack (412) is meshingly connected to one end of the driven gear (49) away from the first gear rack (48), and the water outlet assembly (6) is fixedly connected to the lower end of the second gear rack (412).

2. A helicopter forest fire fighting water bucket handling apparatus according to claim 1, characterized in that: The spring (61) is fixedly connected to the outer side of the lower end of the water bucket body (1), the acting plate (62) is fixedly connected to the lower end of the spring (61), and the closing plug (63) is fixedly connected to the inner side of the upper end of the acting plate (62).

3. A helicopter forest fire fighting water bucket handling apparatus according to claim 1, wherein: The hooks (44) are fixedly connected to the upper and lower ends of the fixed pulley (43), and the upper hooks (44) are inserted into the lower end of the first U-shaped frame (2).

4. A helicopter forest fire fighting water bucket handling apparatus according to claim 2, wherein: The outer end of the closing plug (63) is slidably connected to the water outlet hole (5), and the outer diameter of the closing plug (63) is matched with the inner diameter of the water outlet hole (5).

5. A helicopter forest fire fighting water bucket handling apparatus according to claim 1, wherein: The side plates (411) are rotatably connected to the both sides of the driven shaft (410) through bearings, and the inner wall of the water bucket body (1) is fixedly connected to the lower end of the side plates (411).

6. A helicopter forest fire fighting water bucket handling apparatus according to claim 1, wherein: The second U-shaped frame (3) is fixedly connected to one end of the first U-shaped frame (2) away from the water bucket body (1), and the second U-shaped frame (3) is arranged at the upper middle part of the first U-shaped frame (2).

7. A helicopter forest fire fighting water bucket handling apparatus according to claim 2, wherein: The lower end of the second gear rack (412) is fixedly connected to the upper end of the closing plug (63).

Citation Information

Patent Citations

  • Helicopter forest fire fighting bucket operating device

    CN219323804U