CN110639147A - Power transmission line forest fire aviation fire extinguishing device - Google Patents
Power transmission line forest fire aviation fire extinguishing device Download PDFInfo
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- CN110639147A CN110639147A CN201911102611.6A CN201911102611A CN110639147A CN 110639147 A CN110639147 A CN 110639147A CN 201911102611 A CN201911102611 A CN 201911102611A CN 110639147 A CN110639147 A CN 110639147A
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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
- A62C3/16—Fire prevention, containment or extinguishing specially adapted for particular objects or places in electrical installations, e.g. cableways
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0072—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using sprayed or atomised water
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Abstract
The invention discloses a mountain fire aviation fire extinguishing device for a power transmission line, which comprises a helicopter body and a fire extinguishing system arranged on the helicopter body, wherein the fire extinguishing system comprises a fire extinguishing water agent box arranged on the helicopter body, an inner cavity of the fire extinguishing water agent box is divided into an upper cavity and a lower cavity positioned below the upper cavity through a layered partition plate, the bottom of the lower cavity is provided with a spraying hole controlled to be opened and closed by an opening and closing assembly, the layered partition plate is provided with a communication hole communicated with the upper cavity and the lower cavity, and the fire extinguishing system further comprises an on-off control assembly for controlling the on-off of the. The power transmission line forest fire aviation fire extinguishing device has the advantages of simple and compact structure, low cost, high use flexibility, wide application range and the like.
Description
Technical Field
The invention relates to the technical field of power transmission and distribution equipment, in particular to a mountain fire aviation fire extinguishing device for a power transmission line.
Background
Due to the influence of production life, mountain fire has spread to most countries in the world, such as canada, the united states and china. In recent years, due to mountain fire, the ultrahigh voltage alternating current and direct current transmission line has multiple tripping and locking outage events, and the mountain fire has become a serious threat to a large power grid.
The mountain fire of the power transmission line is multi-faceted and wide, the spreading is rapid, and the time-limit requirement for prevention and control is extremely high. At present, the research on the power transmission line forest fire prevention and control technology of man-made forest fire prediction, satellite fire point monitoring and ground efficient fire extinguishing is developed in China. However, in the period of high mountain fire, such as Qingming and spring festival, the number of people for worshiping in the country is concentrated and large, the road in the country is seriously blocked, the fire engine is usually blocked for 2-3 hours in the important roads in the city and the country, the running distance and the running time along the winding road are long, and the fire engine trips to the site line. The helicopter has high flying speed, is not limited by road traffic conditions in air flight, can fly linearly, and can effectively solve the problems. The conventional helicopter is applied to forest fires, the field environment is relatively simple, and the safety is higher by adopting a bucket fire extinguishing mode to throw the fire extinguishing agent at high altitude at one time. Different from forest fire extinguishment, the power transmission line forest fire extinguishment has the following characteristics:
1. the mountain fire points of the power transmission line are multi-sided and wide, more than 30 mountain fires of one local power transmission line can be simultaneously generated, and the fire extinguishing with multiple fire points is required;
2. the power transmission line forest fire extinguishing agent generally adopts the extinguishing agent with higher viscosity, even mixed clay, so as to avoid the increase of evaporation capacity caused by the diffusion of water agents, and the mode that selectable water pumps and extinguishing agent pumps are less and even can not be suitable for water gun fire extinguishing is adopted.
3. Need to take water and put out a fire in the field for a long time, adopt fire extinguishing agent even, open-air water and fire extinguishing agent all have certain corrosivity, and traditional helicopter fire extinguishing system arranges the power cable in the water tank in order to drive opening and shutting of fire extinguishing system, and the power and the control cable to helicopter fire extinguishing system are corrosive big, and the reliability is low, the life-span is short, and is difficult for the maintenance.
In conclusion, the existing helicopter fire extinguishing equipment cannot meet the fire extinguishing requirements of multiple fire points, safety, high reliability and long service life of the power transmission line forest fire.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects in the prior art and provides the power transmission line forest fire aviation fire extinguishing device which is simple and compact in structure, low in cost, high in use flexibility and wide in application range.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a transmission line mountain fire aviation extinguishing device, includes the helicopter body and installs the fire extinguishing systems on the helicopter body, fire extinguishing systems is including installing the water agent case of putting out a fire on the helicopter body, the lower floor's cavity of upper cavity and being located upper cavity below is separated into through the layering baffle to the inner chamber of water agent case of putting out a fire, the bottom of lower floor's cavity is equipped with the hole that sprays by switching module control switching, be equipped with the intercommunicating pore of intercommunication upper cavity and lower floor's cavity on the layering baffle, fire extinguishing systems still includes control the on-off control subassembly of intercommunicating pore break-make.
As a further improvement of the above technical solution:
the on-off control assembly comprises a buoyancy blocking piece, the buoyancy blocking piece is installed in the lower cavity in a sliding mode and moves up and down along with the height change of the water level in the lower cavity, the communication hole is blocked by the buoyancy blocking piece when the height of the water level in the lower cavity is larger than or equal to a preset height so as to be disconnected, and the communication hole is communicated by the buoyancy blocking piece when the height of the water level in the lower cavity is smaller than the preset height.
The upper cavity body is divided into upper cavities which are isolated from each other, the lower cavity body is divided into lower cavities which are consistent in number and in one-to-one correspondence with the upper cavities, communicating holes and on-off control assemblies are arranged between each lower cavity and the corresponding upper cavity body, and the spraying holes are communicated with all the lower cavities.
The upper cavity and/or the lower cavity are/is internally provided with more than one anti-oscillation partition plates, and the anti-oscillation partition plates are provided with communication ports.
The fire extinguishing water agent box is characterized in that an automatic water replenishing assembly is installed on the fire extinguishing water agent box and comprises a water suction pump and a hose, one end of the hose is communicated with the upper cavity, and a water outlet of the water suction pump is connected with the other end of the hose and is hoisted on the fire extinguishing water agent box through the hose.
The power transmission line forest fire aviation fire extinguishing device is characterized in that a fire extinguishing agent injection assembly is further arranged, the fire extinguishing agent injection assembly comprises a fire extinguishing agent electric pump arranged in the helicopter body and a fire extinguishing agent box used for storing a fire extinguishing agent, the inlet of the fire extinguishing agent electric pump is connected with the fire extinguishing agent box, and the outlet of the fire extinguishing agent electric pump is connected with the upper cavity.
The bottom surface of the lower cavity is provided with a converging surface, the communicating holes are formed in the middle of the converging surface, and the converging surface extends downwards from the periphery to the communicating holes in an inclined mode.
The switching subassembly is including rotating the sealing door, rotate the sealing door articulated install on the water agent case of putting out a fire and can rotate with the switching around articulated axis the spray opening, the outside of water agent case of putting out a fire is equipped with and is used for the drive to rotate sealing door pivoted rotation actuating mechanism, the switching subassembly is still including being used for preventing to rotate sealing door pivoted positioning mechanism when rotating the sealing door and sealing the spray opening.
The spraying holes are divided into two first spraying branch holes through a first separating beam, the opening and closing assembly is provided with a rotary sealing door corresponding to each first spraying branch hole, the hinge axes of the two rotary sealing doors are respectively arranged on two sides of the first separating beam, the swing end of each rotary sealing door is attached to the first separating beam when each rotary sealing door closes the first spraying branch hole, and a gap is formed between the swing ends of the two rotary sealing doors when the two rotary sealing doors close the two first spraying branch holes; positioning mechanism includes the bar, the bar rotates to be installed on the water agent case of putting out a fire and can be through rotating the conversion between orientation state and non-orientation state bar and first partition crossbeam press from both sides tight two simultaneously and seal the first rotation sealing door that sprays the branch hole during orientation state the extending direction of bar with the extending direction in gap is unanimous in order to allow two rotation sealing door to rotate during the non-orientation state, positioning mechanism still rotates the driver part including being used for driving bar pivoted.
The bar piece is installed on the water agent case of putting out a fire through a dwang, the dwang extends to this internal helicopter, rotate the driver part including locate this internal and with the motor that the dwang links to each other of helicopter.
Positioning mechanism includes the locating part, the locating part rotates to be installed on the water agent case of putting out a fire and can pass through to rotate and change between orientation state and non-orientation state the rotation sealing door that the hole was sprayed in the tight closure of orientation state time locating part and water agent case clamp, the locating part breaks away from the rotation sealing door and rotates in order to allow to rotate the sealing door when the non-orientation state, positioning mechanism still is used for driving locating part pivoted motor including locating the helicopter body.
The rotation driving mechanism comprises a swing arm, a connecting rod and a rotary driving piece, the swing arm is hinged to the outer wall of the fire extinguishing water agent box, the rotary driving piece is connected with the swing arm and drives the swing arm to swing, one end of the connecting rod is hinged to the swing end of the swing arm, and the other end of the connecting rod is hinged to the rotation sealing door.
The switching subassembly includes the translation sealing door, the translation sealing door is installed on the water agent case of putting out a fire with the translation mode and can be through removing the switching the spray orifice, the outside of water agent case of putting out a fire is equipped with the translation actuating mechanism who is used for driving the translation sealing door and removes.
The fire extinguishing water agent box is provided with an inclined plane corresponding to each translational sealing door, and the translational sealing doors are provided with flexible sealing pieces which are gradually compressed by the inclined planes and the translational sealing doors and seal gaps between the inclined planes and the translational sealing doors when the translational sealing doors slide towards the direction of the closed spraying holes.
The spraying hole is separated into two second spraying branch holes through a second separating cross beam, the opening and closing assembly corresponds to each second spraying branch hole and is provided with a translation sealing door, and the translation direction of each translation sealing door is the direction of opening the second spraying branch hole when the translation sealing door is close to the second separating cross beam and is offset with the second separating cross beam and closing the second spraying branch hole and keeping away from the second separating cross beam.
And the second separating beam is provided with a rotation stopping groove corresponding to each translational sealing door, and each translational sealing door is inserted into the rotation stopping groove when closing the second spraying branch hole.
The rotation stopping groove is a V-shaped groove with the bottom width smaller than the opening width, and the end part of the translational sealing door inserted into the rotation stopping groove is of a tip structure.
The translation driving mechanism comprises an annular driving chain which is arranged on the outer wall of the fire extinguishing water agent box and driven to operate by a chain driving mechanism, the annular driving chain is provided with a linear driving section, and the translation sealing door is connected with the linear driving section.
Compared with the prior art, the invention has the advantages that:
according to the power transmission line forest fire aviation fire extinguishing device, the fire extinguishing system divides the inner cavity of the fire extinguishing water agent box into the upper layer cavity and the lower layer cavity, the bottom of the lower layer cavity is provided with the spraying holes controlled to be opened and closed by the opening and closing assembly, the spraying and fire extinguishing of the fire extinguishing water agent in the lower layer cavity are controlled in a mode that the opening and closing of the spraying holes are controlled by the opening and closing assembly, a water gun, a water pump and other equipment are not needed, the cost can be reduced, the structure is simple and compact, the fire extinguishing water agent does not pass through the water gun, the water pump and other equipment, the requirement on the viscosity characteristic; meanwhile, the on-off control assembly is adopted to control the on-off of the communication holes for communicating the upper cavity with the lower cavity, so that the fire extinguishing water in the upper cavity can enter the lower cavity for multiple times and the fire extinguishing water amount of the lower cavity at each time, and therefore, the aerial fire extinguishing device for the power transmission line forest fire can extinguish large-range power transmission line forest fires or a plurality of small-area power transmission line forest fires, and is high in use flexibility.
According to the power transmission line forest fire aviation fire extinguishing device, the opening and closing assembly of the outward turning type structure and the linear driving structure is designed, so that a cable can be prevented from directly contacting a fire extinguishing agent, the reliability and the service life of the power transmission line forest fire aviation fire extinguishing device are improved, and the power transmission line forest fire aviation fire extinguishing device is easy to maintain.
Drawings
Fig. 1 is a partial main sectional structural schematic view of the power transmission line forest fire aviation fire extinguishing apparatus in embodiment 1.
Fig. 2 is a partially sectional perspective view of the fire extinguishing agent tank in example 1.
Fig. 3 is a schematic perspective view of the fire extinguishing agent tank in example 1.
Fig. 4 is a partial main sectional structural schematic view of the mountain fire aviation fire extinguishing apparatus for the power transmission line in embodiment 2.
Illustration of the drawings:
1. a helicopter body; 2. a fire extinguishing water agent box; 20. a layered partition plate; 21. an upper cavity; 22. a lower cavity; 221. a converging surface; 23. a spray orifice; 231. a first dividing beam; 232. a first spray distribution hole; 233. a second partition beam; 2331. a rotation stopping groove; 234. a second spray sub-orifice; 24. a communicating hole; 25. a bevel; 26. an upper chamber; 27. a lower chamber; 28. an anti-oscillation partition plate; 281. a communication port; 3. an opening and closing assembly; 31. rotating the sealing door; 32. a strip; 33. rotating the rod; 34. swinging arms; 35. a connecting rod; 36. a translational sealing door; 37. a flexible seal; 38. an endless drive chain; 4. an on-off control component; 41. a buoyancy block piece; 5. an automatic water replenishing assembly; 51. a water suction pump; 52. a hose.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
Example 1:
as shown in fig. 1 to 3, the power transmission line forest fire aviation extinguishing device of this embodiment, including helicopter body 1 and the fire extinguishing system who installs on helicopter body 1, fire extinguishing system is including installing the water agent case 2 of putting out a fire on helicopter body 1, the inner chamber of water agent case 2 of putting out a fire separates into upper cavity 21 and the lower floor cavity 22 that is located upper cavity 21 below through layering baffle 20, the bottom of lower floor cavity 22 is equipped with the spraying hole 23 of controlling the switching by switching component 3, be equipped with the intercommunicating pore 24 that communicates upper cavity 21 and lower floor cavity 22 on layering baffle 20, fire extinguishing system still includes on-off control component 4 of control intercommunicating pore 24 break-make. The fire extinguishing system of the power transmission line forest fire aviation fire extinguishing device divides the inner cavity of the fire extinguishing water agent box 2 into an upper cavity 21 and a lower cavity 22, the bottom of the lower cavity 22 is provided with the spraying holes 23 controlled to be opened and closed by the opening and closing component 3, the spraying of the fire extinguishing water agent in the lower cavity 22 is controlled in a mode that the opening and closing of the spraying holes 23 are controlled by the opening and closing component 3, a water gun, a water pump and other equipment are not needed, the cost can be reduced, the structure is simple and compact, the fire extinguishing water agent does not pass through the water gun, the water pump and other equipment, the requirement on the viscosity characteristic of the fire extinguishing water agent is; meanwhile, the on-off control component 4 is adopted to control the on-off of the communication hole 24 for communicating the upper cavity 21 with the lower cavity 22, so that the fire extinguishing water in the upper cavity 21 can enter the lower cavity 22 for multiple times and the fire extinguishing water amount entering the lower cavity 22 every time, and therefore the aerial fire extinguishing device for the power transmission line forest fire can extinguish large-range power transmission line forest fires or a plurality of small-area power transmission line forest fires, and is high in use flexibility.
In this embodiment, the on-off control unit 4 includes a buoyancy block 41, the buoyancy block 41 is slidably installed in the lower chamber 22 and moves up and down with the change of the water level in the lower chamber 22, and the buoyancy block 41 blocks the communication hole 24 to disconnect the communication hole 24 when the water level in the lower chamber 22 is higher than or equal to a predetermined height, and the buoyancy block 41 is separated from the communication hole 24 to communicate the communication hole 24 when the water level in the lower chamber 22 is lower than the predetermined height. The preset height can be set according to actual needs, and the buoyancy plugging piece 41 is made of the existing light material. The buoyancy plugging piece 41 is installed in the lower cavity 22 in a sliding manner, specifically: two guide rods are arranged in the lower cavity 22, and the buoyancy plugging piece 41 is provided with guide holes which are sleeved on the guide rods and are in sliding fit with the guide rods. The on-off control component 4 has simple structure, low cost and stable and reliable work.
In this embodiment, the upper cavity 21 is divided into two or more upper chambers 26 isolated from each other, the lower cavity 22 is divided into lower chambers 27 corresponding to the upper chambers 26 one by one, a communication hole 24 and an on-off control assembly 4 are provided between each lower chamber 27 and the corresponding upper chamber 26, and the spraying holes 23 are communicated with all the lower chambers 27.
Because the power transmission line mountain fire aviation extinguishing device is when high altitude adjustment position or fly fast, the water agent of putting out a fire can vibrate in upper cavity 21 and lower floor cavity 22, vibrates the effort that can give power transmission line mountain fire aviation extinguishing device a certain direction to lead to the flight unstability. Divide into a plurality of cavities with upper cavity 21 and lower floor cavity 22, make the water agent of putting out a fire vibrate the range in the small region and be limited, can reduce the effort to transmission line mountain fire aviation extinguishing device, the direction of the water agent of putting out a fire direction difference also can produce and offset each other in each cavity simultaneously to weaken the whole effort of transmission line mountain fire aviation extinguishing device, do benefit to and improve flight stability and security.
In this embodiment, more than one anti-swing partition plates 28 are disposed in the upper chamber 26 and the lower chamber 27, and the anti-swing partition plates 28 are provided with communication ports 281. The helicopter body 1 instability caused by violent oscillation of the water body in the flying process can be avoided, and the smooth liquid circulation in the fire extinguishing water agent box 2 is ensured.
In this embodiment, the automatic water replenishing assembly 5 is installed on the fire extinguishing water agent tank 2, the automatic water replenishing assembly 5 includes a water suction pump 51 and a hose 52, one end of the hose 52 is communicated with the upper cavity 21, and a water outlet of the water suction pump 51 is connected with the other end of the hose 52 and is hung on the fire extinguishing water agent tank 2 through the hose 52. The automatic water replenishing assembly 5 is arranged, so that the power transmission line forest fire aviation fire extinguishing device can take water from water sources such as lakes and ponds in the field. Under the condition of no lake or pond, the water bag can be arranged on the ground to supply liquid by stream water and well water. The automatic water replenishing assembly 5 is arranged on the front side of the fire extinguishing water agent box 2, the type of the water suction pump 51 is commercially available HP2000, 24V direct current power supply is adopted, the water suction flow is 2000L/min, and the water suction height is 3 m.
In this embodiment, transmission line mountain fire aviation extinguishing device still is equipped with fire extinguishing agent injection subassembly, and fire extinguishing agent injection subassembly is including installing the fire extinguishing agent electric pump in helicopter body 1 and the fire extinguishing agent case that is used for saving the fire extinguishing agent, and the entry and the fire extinguishing agent case of fire extinguishing agent electric pump link to each other, and the export of fire extinguishing agent electric pump links to each other with upper cavity 21. The fire extinguishing agent injection assembly can inject fire extinguishing agent into the fire extinguishing agent box 2 to be mixed with water replenished through the automatic water replenishing assembly 5 to obtain the fire extinguishing agent. The fire extinguishing agent electric pump adopts a commercially available centrifugal pump, the pressure is less than 0.2Mpa, and the flow is not less than 120L/min.
In this embodiment, the bottom surface of the lower chamber 22 is provided with a converging surface 221, the communication hole 24 is provided in the middle of the converging surface 221, and the converging surface 221 is inclined and downwardly extended from the periphery to the communication hole 24. The fire extinguishing water agent in the lower cavity 22 is converged to the communication hole 24, thereby quickening the water outlet time and reducing the fire extinguishing response time. Preferably, the bottom surface of the lower cavity 22 is defined by a front inclined surface and a rear inclined surface, and a left inclined surface and a right inclined surface, wherein the left inclined surface and the right inclined surface adopt a 10-degree taper angle, and the front inclined surface and the rear inclined surface adopt a 3-degree taper angle.
In this embodiment, the opening and closing assembly 3 includes the rotary sealing door 31, the rotary sealing door 31 is hinged to the fire extinguishing water agent box 2 and can rotate around the hinge axis to open and close the spraying hole 23, the exterior of the fire extinguishing water agent box 2 is provided with a rotary driving mechanism for driving the rotary sealing door 31 to rotate, and the opening and closing assembly 3 further includes a positioning mechanism for preventing the rotary sealing door 31 from rotating when the rotary sealing door 31 closes the spraying hole 23. The rotary driving mechanism drives the rotary sealing door 31 to rotate to open and close the spraying hole 23, a response block of the rotary sealing door, and the whole opening and closing assembly 3 is good in structural stability, convenient to manufacture and install and stable and reliable in work. Meanwhile, the rotation driving mechanism is arranged outside the fire extinguishing agent box 2, so that the corrosion of the fire extinguishing agent or the field water containing ions to the circuit and the rotation driving mechanism can be avoided, and the service life is prolonged. In addition, after the rotary driving mechanism drives the rotary sealing door 31 to seal the spraying hole 23, the positioning mechanism prevents the rotary sealing door 31 from rotating, the rotary driving mechanism is not required to provide power to enable the rotary sealing door 31 to keep a state of sealing the spraying hole 23, power consumption of the rotary driving mechanism can be reduced, cost is reduced, the service life of the rotary driving mechanism is prolonged, and stable reliability of work is guaranteed.
In this embodiment, the spraying hole 23 is divided into two first spraying branch holes 232 by the first separating beam 231, the opening and closing assembly 3 is provided with one rotary sealing door 31 corresponding to each first spraying branch hole 232, the hinge axes of the two rotary sealing doors 31 are respectively arranged at two sides of the first separating beam 231, and the swing end of the rotary sealing door 31 is attached to the first separating beam 231 when each rotary sealing door 31 closes the first spraying branch hole 232, that is, the two rotary sealing doors 31 are hinged and installed in a split door manner, so that the response of spraying fire extinguishing water is faster, and a gap is formed between the swing ends of the two rotary sealing doors 31 when the two rotary sealing doors 31 close the two first spraying branch holes 232; positioning mechanism includes strip 32, strip 32 rotates and installs on fire extinguishing water agent case 2 and can pass through the rotation and change between orientation state and non-orientation state, strip 32 and first partition crossbeam 231 press from both sides tight two rotation sealing door 31 of sealing first spraying minute hole 232 simultaneously when orientation state, strip 32 fixes a position two rotation sealing door 31 simultaneously with first partition crossbeam 231 this moment, prevent two rotation sealing door 31 and rotate, the extending direction of strip 32 is consistent with the extending direction in gap when non-orientation state so that allow two rotation sealing door 31 to rotate, the rotatable spraying hole 23 that opens of rotation sealing door 31 this moment, positioning mechanism still includes the rotation drive part that is used for driving strip 32 pivoted. This positioning mechanism only needs to rotate strip spare 32 and can realize fixing a position and not fixing a position two rotation sealing door 31 simultaneously between two states, its simple structure is compact, with low costs, easily control to when fixing a position rotation sealing door 31, need not rely on power unit to maintain, can reduce cost, improve the location reliability.
In this embodiment, strip 32 installs on water agent case 2 of putting out a fire through a dwang 33, and dwang 33 extends to helicopter body 1 in, and the motor that the rotation drive part links to each other with dwang 33 in locating helicopter body 1 is direct to get the electricity from the battery in helicopter body 1.
In this embodiment, the rotation driving mechanism includes swing arm 34, connecting rod 35 and rotary driving piece, and swing arm 34 is articulated to be installed on the outer wall of water agent case 2 of putting out a fire, and rotary driving piece links to each other with swing arm 34 and drives swing arm 34 swing, and the one end of connecting rod 35 is articulated with the swing end of swing arm 34, and the other end of connecting rod 35 is articulated with rotation sealing door 31. The rotation driving mechanism has the advantages of simple and compact structure, easy manufacture and assembly, and stable and reliable work. The rotary drive is preferably a motor.
In this embodiment, the helicopter body 1 is a rotary wing helicopter with a load greater than 1 ton, preferably a squirrel helicopter with a maximum load of 2 tons. Four corners of the upper part of the fire extinguishing water agent box 2 are riveted on an undercarriage of the helicopter body 1 through winding drums, the fire extinguishing water agent box 2 is located below the belly of the helicopter body 1, and the fire extinguishing water agent box 2 is located below the belly of the helicopter body 1. The fire extinguishing agent box 2 is welded by aviation aluminum materials, and is formed by plastic.
Preferably, the top of the fire extinguishing water agent box 2 is provided with a high-pressure gas input hole, a power line input hole and a signal line output hole.
In this embodiment, the spraying hole 23 is divided into two first spraying branch holes 232 by the first dividing beam 231, and the two rotary sealing doors 31 are used to correspondingly close the first spraying branch holes 232. In other embodiments, the spray opening 23 may not be divided into two first spray branch openings 232 by the first dividing beam 231, i.e. only one spray opening 23 and one rotary sealing door 31 may be provided in combination. At this moment, the positioning mechanism comprises a limiting piece, the limiting piece is rotatably installed on the fire extinguishing water agent box 2 and can be switched between a positioning state and a non-positioning state through rotation, the limiting piece and the fire extinguishing water agent box 2 clamp the rotating sealing door 31 for closing the spraying hole 23 in the positioning state, the limiting piece is separated from the rotating sealing door 31 to allow the rotating sealing door 31 to rotate in the non-positioning state, and the positioning mechanism further comprises a motor arranged in the helicopter body 1 and used for driving the limiting piece to rotate. The limiting member may be in the form of the above-mentioned strip 32, and the driving mechanism for driving the limiting member to rotate may also be a rotation driving member for driving the strip 32 to rotate.
Example 2:
as shown in fig. 4, the power transmission line forest fire aviation fire extinguishing apparatus of the present embodiment is substantially the same as that of embodiment 1, and mainly differs therefrom in that in the present embodiment, the opening and closing assembly 3 includes a translational sealing door 36, the translational sealing door 36 is installed on the fire-extinguishing water agent tank 2 in a translational manner and can open and close the spraying holes 23 by moving, and a translational driving mechanism for driving the translational sealing door 36 to move is arranged outside the fire-extinguishing water agent tank 2. The opening and closing assembly 3 adopts a structural form that the translation driving mechanism drives the translation sealing door 36 to move to open and close the spraying hole 23, has simple structure, better compactness, high working stability and reliability and can improve the sealing property.
In the embodiment, the translation sealing door 36 is installed on the fire extinguishing water agent tank 2 in a translation manner through a guide rail mechanism, and the guide rail mechanism adopts the prior art.
In this embodiment, the fire extinguishing water agent box 2 is provided with an inclined surface 25 corresponding to each translational sealing door 36, and the translational sealing door 36 is provided with a flexible sealing element 37 which is gradually pressed by the inclined surface 25 and the translational sealing door 36 when the translational sealing door 36 slides towards the direction of closing the spraying hole 23 and seals a gap between the inclined surface 25 and the translational sealing door 36. When the translational sealing door 36 slides to close the spraying hole 23, the flexible sealing piece 37 is automatically pressed by the inclined plane 25 and the translational sealing door 36, and meanwhile, the gap between the inclined plane 25 and the translational sealing door 36 is sealed, so that the sealing performance can be improved, and the translational sealing door 36 is simple in structure and arrangement and easy to manufacture and assemble.
In this embodiment, the spraying hole 23 is divided into two second spraying branch holes 234 by the second dividing beam 233, the opening and closing assembly 3 is provided with one translational sealing door 36 corresponding to each second spraying branch hole 234, and the translational direction of each translational sealing door 36 is the direction in which the translational sealing door 36 closes the second spraying branch hole 234 when approaching the second dividing beam 233 and abutting against the second dividing beam 233, and opens the second spraying branch hole 234 when the translational sealing door 36 is far from the second dividing beam 233. The structure has high stability and reliability, and is convenient for controlling the opening degree of the second spraying minute hole 234.
In this embodiment, the second partition beam 233 is provided with a rotation stop groove 2331 corresponding to each of the translational sealing doors 36, and each of the translational sealing doors 36 is inserted into the rotation stop groove 2331 when closing the second spraying branch hole 234, on one hand, the rotation stop groove 2331 plays a role in positioning and limiting, and can improve the stability of the translational sealing door 36 when closing the second spraying branch hole 234; on the other hand, the sliding seal door 36 is inserted into the rotation stop groove 2331 to form a labyrinth seal, which can improve the sealing property.
In this embodiment, the rotation-stop groove 2331 is a V-shaped groove with a bottom width smaller than the opening width, and the end of the translational sealing door 36 inserted into the rotation-stop groove 2331 is a pointed structure.
In this embodiment, the translational driving mechanism comprises an annular driving chain 38 which is installed on the outer wall of the fire extinguishing water agent box 2 and driven by the chain driving mechanism to operate, the annular driving chain 38 is provided with a linear driving section, and the translational sealing door 36 is connected with the linear driving section. The chain driving mechanism drives the annular driving chain 38 to move, and the linear driving section of the annular driving chain 38 moves in a linear reciprocating manner, so that the translational sealing door 36 is driven to move in a reciprocating manner to open and close the spraying hole 23. The translation driving mechanism has the advantages of simple and compact structure, low cost and stable and reliable work. The chain drive mechanism for driving the endless drive chain 38 comprises two chain wheels wound around the endless drive chain 38, one of the chain wheels being connected to and driven by a motor.
In other embodiments, the spray opening 23 may not be divided into two second spray sub-openings 234 by the second dividing beam 233, i.e. only one spray opening 23 and one translating sealing door 36 combination may be provided.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-described embodiments. Modifications and variations that may occur to those skilled in the art without departing from the spirit and scope of the invention are to be considered as within the scope of the invention.
Claims (18)
1. The utility model provides a transmission line mountain fire aviation extinguishing device, includes helicopter body (1) and installs the fire extinguishing systems on helicopter body (1), its characterized in that: fire extinguishing system is including installing fire extinguishing water agent case (2) on helicopter body (1), the inner chamber of fire extinguishing water agent case (2) is separated into upper cavity (21) and is located lower floor's cavity (22) of upper cavity (21) below through layering baffle (20), the bottom of lower floor's cavity (22) is equipped with spraying hole (23) by switching module (3) control switching, be equipped with intercommunicating pore (24) that communicate upper cavity (21) and lower floor's cavity (22) on layering baffle (20), fire extinguishing system is still including control on-off control subassembly (4) of intercommunicating pore (24) break-make.
2. The power transmission line forest fire aviation fire extinguishing device according to claim 1, characterized in that: the on-off control assembly (4) comprises a buoyancy blocking piece (41), the buoyancy blocking piece (41) is slidably arranged in the lower cavity (22) and moves up and down along with the change of the height of the water level in the lower cavity (22), and when the height of the water level in the lower cavity (22) is greater than or equal to the preset height, the buoyancy blocking piece (41) blocks the communication hole (24) to disconnect the communication hole (24), and when the height of the water level in the lower cavity (22) is less than the preset height, the buoyancy blocking piece (41) is separated from the communication hole (24) to communicate the communication hole (24).
3. The power transmission line forest fire aviation fire extinguishing device according to claim 1, characterized in that: go up cavity (21) and separate into upper chamber (26) of two above mutual isolations, lower floor's cavity (22) separate into with go up cavity (26) quantity unanimity and lower cavity (27) of one-to-one, all be equipped with between every lower cavity (27) and the last cavity (26) that corresponds intercommunicating pore (24) and on-off control subassembly (4), spray hole (23) and all lower cavity (27) intercommunications.
4. The power transmission line forest fire aviation fire extinguishing device according to claim 3, characterized in that: more than one anti-oscillation partition plate (28) is arranged in the upper cavity (26) and/or the lower cavity (27), and a communication opening (281) is formed in the anti-oscillation partition plate (28).
5. The power transmission line forest fire aviation fire extinguishing device according to claim 1, characterized in that: install automatic water supply subassembly (5) on water agent case of putting out a fire (2), automatic water supply subassembly (5) are including water suction pump (51) and hose (52), the one end and the upper cavity (21) of hose (52) communicate, the delivery port of water suction pump (51) with the other end of hose (52) links to each other and hoists on water agent case of putting out a fire (2) through hose (52).
6. The power transmission line forest fire aviation fire extinguishing device according to claim 5, characterized in that: the fire extinguishing agent injection assembly is arranged on the power transmission line forest fire aviation fire extinguishing device and comprises a fire extinguishing agent electric pump installed in the helicopter body (1) and a fire extinguishing agent box used for storing a fire extinguishing agent, an inlet of the fire extinguishing agent electric pump is connected with the fire extinguishing agent box, and an outlet of the fire extinguishing agent electric pump is connected with the upper cavity (21).
7. The power transmission line forest fire aviation fire extinguishing device according to claim 1, characterized in that: the bottom surface of the lower-layer cavity (22) is provided with a converging surface (221), the communication hole (24) is formed in the middle of the converging surface (221), and the converging surface (221) extends downwards from the periphery to the communication hole (24) in an inclined mode.
8. The fire fighting device according to any one of claims 1 to 7, characterized in that: opening and closing subassembly (3) are including rotating sealing door (31), rotate sealing door (31) articulated install on fire extinguishing water agent case (2) and can rotate with the switching around the hinge axis spray hole (23), the outside of fire extinguishing water agent case (2) is equipped with and is used for the drive to rotate sealing door (31) pivoted rotation drive mechanism, opening and closing subassembly (3) are still including being used for preventing to rotate sealing door (31) pivoted positioning mechanism when rotating sealing door (31) and sealing spray hole (23).
9. The power transmission line forest fire aviation fire extinguishing device according to claim 8, characterized in that: the spraying holes (23) are divided into two first spraying branch holes (232) through a first separating beam (231), the opening and closing assembly (3) is provided with a rotary sealing door (31) corresponding to each first spraying branch hole (232), the hinge axes of the two rotary sealing doors (31) are respectively arranged on two sides of the first separating beam (231), the swing ends of the rotary sealing doors (31) are attached to the first separating beam (231) when the rotary sealing doors (31) close the first spraying branch holes (232), and gaps are formed between the swing ends of the two rotary sealing doors (31) when the two rotary sealing doors (31) close the two first spraying branch holes (232); positioning mechanism includes strip (32), strip (32) rotate and install on water agent case (2) of putting out a fire and can pass through the rotation and change between orientation state and non-orientation state strip (32) and first partition crossbeam (231) press from both sides tight two simultaneously and seal the rotation sealing door (31) that first spraying divides hole (232) during orientation state the extending direction of strip (32) during non-orientation state with the extending direction in gap is unanimous in order to allow two rotation sealing door (31) to rotate, positioning mechanism still rotates the driver part including being used for driving strip (32) pivoted.
10. The power transmission line forest fire aviation fire extinguishing device according to claim 9, characterized in that: strip-shaped member (32) are installed on water agent case (2) put out a fire through a dwang (33), dwang (33) extend to helicopter body (1) in, rotate the driver part including locate helicopter body (1) in and with the motor that dwang (33) link to each other.
11. The power transmission line forest fire aviation fire extinguishing device according to claim 8, characterized in that: positioning mechanism includes the locating part, the locating part rotates to be installed on water agent case (2) of putting out a fire and can pass through to rotate and change between positioning status and non-positioning status limiting part and the tight rotation sealing door (31) that seals spray orifice (23) of water agent case (2) clamp of putting out a fire during positioning status the limiting part breaks away from rotation sealing door (31) and rotates in order to allow to rotate sealing door (31) during non-positioning status, positioning mechanism is still including locating helicopter body (1) interior motor that is used for driving the locating part pivoted.
12. The power transmission line forest fire aviation fire extinguishing device according to claim 8, characterized in that: the rotation driving mechanism comprises a swing arm (34), a connecting rod (35) and a rotary driving piece, wherein the swing arm (34) is hinged to the outer wall of the fire extinguishing water agent box (2), the rotary driving piece is connected with the swing arm (34) and drives the swing arm (34) to swing, one end of the connecting rod (35) is hinged to the swing end of the swing arm (34), and the other end of the connecting rod (35) is hinged to the rotation sealing door (31).
13. The fire fighting device according to any one of claims 1 to 7, characterized in that: switching subassembly (3) are including translation sealing door (36), translation sealing door (36) are installed on fire extinguishing water agent case (2) with the translation mode and can be through removing the switching spray orifice (23), the outside of fire extinguishing water agent case (2) is equipped with the translation actuating mechanism that is used for driving translation sealing door (36) and removes.
14. The power transmission line forest fire aviation fire extinguishing device according to claim 13, characterized in that: the fire extinguishing water agent box (2) is provided with an inclined plane (25) corresponding to each translational sealing door (36), and the translational sealing doors (36) are provided with flexible sealing pieces (37) which are gradually compressed and sealed by the inclined plane (25) and the translational sealing doors (36) when the translational sealing doors (36) slide towards the direction of the closed spraying hole (23) and are used for sealing gaps between the inclined plane (25) and the translational sealing doors (36).
15. The power transmission line forest fire aviation fire extinguishing device according to claim 13, characterized in that: spray hole (23) and separate into two second through second partition crossbeam (233) and spray branch hole (234), switching subassembly (3) are corresponding every second and spray branch hole (234) and all are equipped with a translation sealing door (36), and the translation direction of each translation sealing door (36) is close to second partition crossbeam (233) and closes second when offseting with second partition crossbeam (233) and sprays branch hole (234), and the direction that the second sprayed branch hole (234) was opened when translation sealing door (36) kept away from second partition crossbeam (233) for translation sealing door (36).
16. The power transmission line forest fire aviation fire extinguishing device according to claim 15, characterized in that: the second separating beam (233) is provided with a rotation stopping groove (2331) corresponding to each translational sealing door (36), and each translational sealing door (36) is inserted into the rotation stopping groove (2331) when closing the second spraying branch hole (234).
17. The power transmission line forest fire aviation fire extinguishing device according to claim 16, characterized in that: the rotation stopping groove (2331) is a V-shaped groove with the bottom width smaller than the opening width, and the end part of the translational sealing door (36) inserted into the rotation stopping groove (2331) is of a tip structure.
18. The power transmission line forest fire aviation fire extinguishing device according to claim 13, characterized in that: the translation driving mechanism comprises an annular driving chain (38) which is arranged on the outer wall of the fire extinguishing water agent box (2) and driven to operate by a chain driving mechanism, the annular driving chain (38) is provided with a linear driving section, and the translation sealing door (36) is connected with the linear driving section.
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