CN110203400B - Many people of helicopter cable fall extinguishing device - Google Patents

Many people of helicopter cable fall extinguishing device Download PDF

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Publication number
CN110203400B
CN110203400B CN201910457035.0A CN201910457035A CN110203400B CN 110203400 B CN110203400 B CN 110203400B CN 201910457035 A CN201910457035 A CN 201910457035A CN 110203400 B CN110203400 B CN 110203400B
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China
Prior art keywords
claw
column
base
steel wire
wire rope
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CN201910457035.0A
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Chinese (zh)
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CN110203400A (en
Inventor
何诚
舒立福
张运生
刘晓东
陈锋
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Nanjing Forest Police College
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Nanjing Forest Police College
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    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0228—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires with delivery of fire extinguishing material by air or aircraft
    • A62C3/0242—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires with delivery of fire extinguishing material by air or aircraft by spraying extinguishants from the aircraft
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/04—Helicopters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D1/00—Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight
    • B64D1/16—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting
    • B64D1/18—Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting by spraying, e.g. insecticides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D47/00—Equipment not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U10/00—Type of UAV
    • B64U10/10—Rotorcrafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64U—UNMANNED AERIAL VEHICLES [UAV]; EQUIPMENT THEREFOR
    • B64U2101/00—UAVs specially adapted for particular uses or applications
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Emergency Management (AREA)
  • Mechanical Engineering (AREA)
  • Forests & Forestry (AREA)
  • Ecology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Pest Control & Pesticides (AREA)
  • Remote Sensing (AREA)
  • Emergency Lowering Means (AREA)

Abstract

The invention discloses a multi-person cable descending device of a helicopter, which comprises a base, a bracket fixed above the base, a fixed disc arranged at the top end of the bracket, a balancing weight arranged on the bracket, a plurality of claw columns connected to the base, a plurality of claw column steel wire ropes and a motor, wherein the bracket is fixed above the base; one end of each claw column is uniformly connected to the side surface of the base through a rotating shaft, the other end of each claw column extends outwards and is connected with a claw column steel wire rope, and a nylon net is arranged between every two adjacent claw columns; a plurality of claw column pulleys are fixed on the side surface of the fixed disc, one end of each claw column steel wire rope is connected with the claw column, and the other end of each claw column steel wire rope is connected with the balancing weight after bypassing the claw column pulleys; a counterweight pulley is also arranged below the fixed disk and is positioned above the counterweight block, the counterweight block is also connected with a counterweight steel wire rope, and the counterweight steel wire rope is connected to the motor driving shaft after bypassing the counterweight pulley. The multi-person cable descending device of the helicopter provides an umbrella-shaped bearing structure capable of containing more persons and articles, can be put down when in use and furled when not in use, and has large bearing capacity and high safety.

Description

Many people of helicopter cable fall extinguishing device
Technical Field
The invention belongs to the technical field of fire extinguishing equipment, and relates to a fire extinguishing device for multi-person cable descending from a helicopter.
Background
Among the various disasters, fire is one of the main disasters that threaten public safety and social development most often and most generally. Forest fire prevention work is an important component of disaster prevention and reduction work. In recent years, the incidence of global forest fires is increased year by year, the fires not only reduce the density of the forest and destroy the forest structure, but also cause succession of tree species and reduce the utilization value of the forest, and in areas with dense tree species, the spreading speed of the fires is extremely high and must be restrained in a short time so as to avoid causing more serious damage.
As the trees in the forest are various and the terrain is complex, common fire fighting tools, traffic vehicles and the like in cities cannot be used in the forest landform, and special fire fighting equipment is required. Due to the narrow and incoherent forest roads, fire fighting facilities often cannot be quickly transported to a fire scene. The direct fire fighting method is convenient for fire extinguishing operation, but it is difficult for fire fighters to reach the fire point immediately and to transport a large amount of fire fighting water or fire extinguishing agent. Therefore, when a fire is located in a mountain area where traffic is inconvenient, an aviation fire-extinguishing method of spraying a fire extinguishing agent by an airplane or a helicopter or direct fire fighting by air transporting fire fighters and equipment to the fire is often used. Because the forest topography is complicated, it is extremely difficult to fix a position when airborne personnel and equipment, and the danger coefficient is extremely high, consequently, adopt the cable to fall the fire fighter and equipment to the place usually. The conventional cable descending method is to extend a cabin door and put down a cable to form a cable descending channel, generally only one person can fall at a time, the efficiency is low, the requirement on the operating proficiency of the person during cable descending is extremely high, and a special carrying tool needs to be replaced when equipment needs to fall, so that the operation is very inconvenient.
Disclosure of Invention
In order to solve the problems, the invention discloses a multi-person cable-descending device of a helicopter, which adopts a foldable bracket type structure, can bear a plurality of persons and equipment at one time and is convenient and flexible to use.
In order to achieve the purpose, the invention provides the following technical scheme:
a multi-person cable descending device of a helicopter comprises a base, a support fixed above the base, a fixed disc arranged at the top end of the support, a balancing weight arranged on the support, a plurality of claw columns connected to the base, a plurality of claw column steel wire ropes and a motor; one end of each claw column is connected with the base through a rotating shaft, the other end of each claw column extends outwards and is connected with a claw column steel wire rope, the claw columns are uniformly connected to the side surface of the base in an umbrella rib shape, and a nylon net is arranged between every two adjacent claw columns; a plurality of claw column pulleys are fixed on the side surface of the fixed disc, one end of each claw column steel wire rope is connected with a claw column, and the other end of each claw column steel wire rope is connected with a balancing weight after bypassing the claw column pulleys; the fixed disk is characterized in that a counterweight pulley is further arranged below the fixed disk, the counterweight pulley is located above the counterweight block, the counterweight block is further connected with a counterweight steel wire rope, and the counterweight steel wire rope is connected to a motor driving shaft after bypassing the counterweight pulley.
Furthermore, the base center is provided with the fire control post, the fire control post side is provided with the hole for water spraying, has the passageway with the hole for water spraying intercommunication in it, still is provided with the water inlet on the fire control post, water inlet and passageway intercommunication.
Furthermore, the fire-fighting column is connected with a linear driving mechanism, and the linear driving mechanism is used for driving the fire-fighting column to stretch.
Further, the linear driving mechanism is a linear motor or an air cylinder.
Furthermore, a limiting piece used for limiting the position of the claw column is arranged on the rotating shaft.
Furthermore, a plurality of sliding grooves are formed in the side face of the balancing weight, and at least three supporting rods are embedded into the sliding grooves on the support.
Furthermore, the periphery of the fixed disk is provided with a safety buckle fixing hole.
Furthermore, a lifting lug is arranged at the top of the fixed disc.
Furthermore, the claw column pulley is fixed on the side face of the fixed disc through a claw column support.
Furthermore, the counterweight pulley is fixed below the fixed disc through a counterweight support.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. this many people of helicopter cable falls device provides the umbelliform bearing structure that can hold more personnel and article, can put down when using, draws in when not using, and the bearing capacity is big, and the security is high.
2. The invention also provides a simple fire-fighting device which is used for spraying water in the cable descending process, opening up a low-temperature fire-preventing safety belt and further increasing the safety coefficient.
3. The pulley and the steel wire rope are adopted to open and furl the cable descending device, the reliability is strong, and the operation is simple and convenient.
4. The safety buckle fixing hole can further increase the use safety.
Drawings
Fig. 1 is a schematic view of an overall structure of a multi-person cable landing device of a helicopter according to an embodiment.
FIG. 2 is a partial view of the fixing plate and the weight member.
Fig. 3 is a bottom view of the multi-person cable landing device of the helicopter according to the second embodiment.
FIG. 4 is a schematic view of a base portion according to a second embodiment.
FIG. 5 is a schematic view of the fire pillar, the base, the water tank structure and the connection according to the second embodiment.
Description of reference numerals:
the device comprises a base 1, a support 2, a fixed disc 3, a balancing weight 4, a claw column 5, a claw column steel wire rope 6, a motor 7, a rotating shaft 8, a nylon net 9, a claw column pulley 10, a claw column support 11, a balancing weight pulley 12, a balancing weight steel wire rope 13, a balancing weight support 14, a through hole 15, a supporting rod 16, a sliding groove 17, a supporting seat 18, a limiting sheet 19, a lifting lug 20, a safety buckle fixing hole 21, a fire-fighting column 23, a channel 24, a water spraying hole 25, a water inlet 26, a water pipe 27 and a linear motor 28.
Detailed Description
The technical solutions provided by the present invention will be described in detail below with reference to specific examples, and it should be understood that the following specific embodiments are only illustrative of the present invention and are not intended to limit the scope of the present invention.
The first embodiment is as follows:
as shown in fig. 1 and 2, the multi-person cable landing device for the helicopter comprises a base 1, a support 2, a fixed disc 3, a balancing weight 4, a plurality of claw columns 5, a plurality of claw column steel wire ropes 6 and a motor 7. Wherein, support 2 is fixed in base 1 top, and fixed disk 3 sets up on support 2 tops, and balancing weight 4 sets up on the support, and motor 7 sets up on base 1. In the embodiment, 5 claw columns are arranged, the number of the claw column steel wire ropes 6 is the same as that of the claw columns, one end of each claw column is connected with the base 1 through a rotating shaft 8, the other end of each claw column extends outwards and is connected with one claw column steel wire rope 6, a nylon net 9 is arranged between every two adjacent claw columns, and the claw columns 5 are uniformly connected to the side face of the base 1 and are opened to form an umbrella shape. The nylon net is made of high-light high-density nylon materials, so that the bearing weight is large, the safety coefficient is high, and multiple layers of nylon nets can be arranged if necessary. The number of the claw columns 5 can be set as required, and 5-8 claw columns are preferable in view of supporting strength and cost. As an improvement, the rotating shaft 8 is preferably provided with a limiting piece 19 for limiting the movement of the claw column, and when the tail end of the claw column is placed to be horizontal or close to the horizontal position, the claw column does not descend under the action of the limiting piece 19.
A plurality of claw column pulleys 10 are fixed on the side surface of the fixed disc 3, one end of each claw column steel wire rope 6 is connected with the claw column 5, and the other end of each claw column steel wire rope is connected with the balancing weight 4 after bypassing the claw column pulleys 10. Preferably, the side surface of the fixed disk 3 is provided with a claw pole bracket 11, and the claw pole pulley 10 is fixed on the claw pole bracket 11. A counterweight pulley 12 is further arranged below the fixed disc 3, the counterweight pulley 12 is positioned above the counterweight block 4, the counterweight block 4 is further connected with a counterweight steel wire rope 13, and the counterweight steel wire rope is connected to a driving shaft of the motor 7 after bypassing the counterweight pulley. Preferably, a weight holder 14 is fixed below the fixed plate 3, and the weight sheave 12 is fixed to the weight holder 14. Specifically, as shown in the figure, a through hole 15 is further formed in the counterweight block, and the counterweight steel wire rope downward from the counterweight pulley passes through the through hole and then is connected to the motor.
Obviously, the pulleys used in this example are all fixed pulleys.
In the embodiment, the support 2 comprises 5 uniformly arranged support rods 16, the edge of the balancing weight 4 is provided with a sliding groove 17, the support rods are embedded into the sliding groove, the inner side of each support rod and the inner end surface of the corresponding sliding groove are both polished, roughness is reduced, and when the balancing weight moves up and down, friction between the balancing weight and the support rods is small, and energy is saved. The number of the supporting rods can be set according to requirements, is at least three, and is preferably the same as that of the claw columns. As an improvement, a supporting seat 18 is also arranged between the balancing weight and the base, and each supporting rod passes through the supporting seat and is fixedly connected with the supporting seat. A certain distance is arranged between the supporting seat and the base to form a space for accommodating a motor and other equipment. The supporting seat is provided with a through hole 15 corresponding to the position of the through hole on the balancing weight for the balancing weight steel wire rope to penetrate and then be connected with the motor.
In addition, a lifting lug 20 is provided on the top of the fixed disk. The multi-person cable-descending device of the helicopter can be conveniently hoisted under the helicopter through the lifting lugs.
As an improvement, the periphery of the fixed disk is also provided with a safety buckle fixing hole 21 for fixing a safety buckle by each fireman, thereby improving the safety of the cable drop.
When the multi-person cable descending device of the helicopter is used, the counterweight steel wire rope is tightened through the operation of the driving motor, the counterweight block ascends under the traction action of the steel wire rope, so that the claw column steel wire rope is loosened, the tail end of the claw column descends to the state shown in the figure 1, the claw column is completely opened at the moment, personnel, equipment and articles can be placed on the nylon net, after the weight is balanced, the multi-person cable descending device descends integrally, 6-10 persons can descend at one time, and the efficiency is obviously improved. When not using this device, can draw in the device: the motor is reversed to lower the balancing weight, the claw column steel wire rope is tightened, and the tail end of the claw column (in this case, the end of the claw column far away from the base is the tail end) is pulled by the balancing weight steel wire rope to rise to a position close to the fixed disc to be folded, so that the storage space is saved.
Example two:
in order to further improve the safety, on the basis of the first embodiment, the rope descending device can be further provided with simple fire-fighting equipment for opening up a low-temperature fire-avoiding safety belt in the rope descending process. Specifically, as shown in fig. 3, 4 and 5, in this example, a fire pillar 23 is further provided at the center of the base, and a channel 24 for passing water is provided in the fire pillar 23. The bottom of the side surface of the fire-fighting column is provided with a water spraying hole 25, the top of the fire-fighting column is provided with a water inlet 26, and the channel is communicated with the water spraying hole and the water inlet. The inlet opening should be connected to a water tank 29 provided on the helicopter via a water pipe 27. The water pipe should adopt the fire hose of sufficient length, and when the cable falls the device and descends, the fire hose constantly extends, sustainable to the fire column water supply.
The fire post is preferably connected to a linear drive mechanism to effect extension and retraction of the fire post. The linear driving mechanism preferably employs a linear motor 28 or a cylinder capable of generating a linear motion. When the rope drop device is not needed to be used, the fire fighting column retracts into the base, the bottom surface of the fire fighting column is flush with the lower end surface of the base, and the fire fighting column can be prevented from being damaged by collision when the rope drop device falls to the ground. When the low-temperature fire-avoiding safety belt needs to be developed, the linear driving mechanism is driven to enable the fire fighting column to extend outwards and protrude below the base, the water spraying holes are exposed, a water tank switch in the helicopter is turned on to supply water to the fire fighting column, water flow is sprayed outwards from the water spraying holes to form a uniform spraying surface, and the wetting rope falls to the lower area to form the low-temperature fire-avoiding safety belt.
Besides spraying water, the fire column can also spray foam, dry powder and other common fire extinguishing substances, and in this case, a foam or dry powder containing box is arranged on the base, and pressurizing equipment is added to apply the spraying pressure to ensure a sufficient spraying range.
The technical means disclosed in the invention scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.

Claims (10)

1. A multi-person cable landing device of a helicopter is characterized in that: the device comprises a base (1), a support (2) fixed above the base, a fixed disc (3) arranged at the top end of the support, a balancing weight (4) arranged on the support, a plurality of claw columns (5) connected to the base, a plurality of claw column steel wire ropes (6) connected with the claw columns, and a motor (7); one end of each claw column (5) is connected with the base (1) through a rotating shaft (8), the other end of each claw column extends outwards and is connected with a claw column steel wire rope (6), the claw columns (5) are uniformly connected to the side surface of the base (1) in an umbrella rib shape, and a nylon net is arranged between every two adjacent claw columns (5); a plurality of claw column pulleys (10) are fixed on the side surface of the fixed disc (3), one end of each claw column steel wire rope (6) is connected with the claw column (5), and the other end of each claw column steel wire rope is connected with the balancing weight (4) after bypassing the claw column pulleys (10); fixed disk below still is provided with a counter weight pulley (12), and counter weight pulley (12) are located balancing weight (4) top, and balancing weight (4) still are connected with a counter weight wire rope (13), counter weight wire rope (13) are walked around and are connected to motor (7) drive shaft behind counter weight pulley (12).
2. A helicopter multi-person cable landing apparatus as claimed in claim 1, wherein: the fire fighting column is characterized in that a fire fighting column (23) is arranged in the center of the base (1), a water spraying hole (25) is formed in the side face of the fire fighting column (23), a channel (24) communicated with the water spraying hole (25) is formed in the fire fighting column, a water inlet (26) is further formed in the fire fighting column, and the water inlet (26) is communicated with the channel (24).
3. A helicopter multi-person cable landing apparatus as claimed in claim 2, wherein: the fire-fighting column is connected with the linear driving mechanism, and the linear driving mechanism is used for driving the fire-fighting column to stretch.
4. A helicopter multi-person cable landing apparatus as claimed in claim 3, wherein: the linear driving mechanism is a linear motor (28) or an air cylinder.
5. A helicopter multi-person cable landing apparatus as claimed in claim 1, wherein: and a limiting piece (19) used for limiting the position of the claw column (5) is arranged on the rotating shaft (8).
6. A helicopter multi-person cable landing apparatus as claimed in claim 1, wherein: a plurality of sliding grooves (17) are formed in the side face of the balancing weight (4), the support (2) comprises 5 evenly-arranged supporting rods, and at least three supporting rods (16) are embedded into the sliding grooves (17).
7. A helicopter multi-person cable landing apparatus as claimed in claim 1, wherein: the periphery of the fixed disc (3) is provided with a safety buckle fixing hole (21).
8. A helicopter multi-person cable landing apparatus as claimed in claim 1, wherein: the top of the fixed disk (3) is provided with a lifting lug (20).
9. A helicopter multi-person cable landing apparatus as claimed in claim 1, wherein: the claw column pulley (10) is fixed on the side surface of the fixed disc (3) through a claw column bracket (11).
10. A helicopter multi-person cable landing apparatus as claimed in claim 1, wherein: the counterweight pulley (12) is fixed below the fixed disc (3) through a counterweight bracket (14).
CN201910457035.0A 2019-05-29 2019-05-29 Many people of helicopter cable fall extinguishing device Active CN110203400B (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
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CN110203400B true CN110203400B (en) 2023-03-31

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CN111013046A (en) * 2019-11-30 2020-04-17 芜湖市努尔航空信息科技有限公司 Aviation fire extinguishing auxiliary device and aviation fire extinguishing method

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NL191010A (en) * 1953-09-23
CN101240698B (en) * 2007-02-07 2013-05-29 李健超 Tower type pumping machine
CN204106895U (en) * 2014-09-04 2015-01-21 郎涛 A kind of forest-fire model equipment
CN204619206U (en) * 2015-04-07 2015-09-09 张亚晨 A kind of simple and easy limiter of speed
CN107140175A (en) * 2017-06-01 2017-09-08 北京天宇新超航空科技有限公司 A kind of unmanned automatic deploying and retracting kite balloon airship scheme

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