CN110327569A - A kind of Elevating platform fire truck of the rescue ladder overhead with transition platform - Google Patents
A kind of Elevating platform fire truck of the rescue ladder overhead with transition platform Download PDFInfo
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- CN110327569A CN110327569A CN201910750371.4A CN201910750371A CN110327569A CN 110327569 A CN110327569 A CN 110327569A CN 201910750371 A CN201910750371 A CN 201910750371A CN 110327569 A CN110327569 A CN 110327569A
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- 230000003028 elevating effect Effects 0.000 title claims abstract description 19
- 241000282326 Felis catus Species 0.000 claims description 4
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- 238000010586 diagram Methods 0.000 description 4
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B3/00—Devices or single parts for facilitating escape from buildings or the like, e.g. protection shields, protection screens; Portable devices for preventing smoke penetrating into distinct parts of buildings
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C27/00—Fire-fighting land vehicles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
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- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- General Health & Medical Sciences (AREA)
- Ladders (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention discloses a kind of Elevating platform fire trucks of rescue ladder overhead with transition platform of fire fighting truck technical field, using mixing cantilever crane (4) structure, and it is equipped with transition platform (6), the especially described mixing cantilever crane (4) and corresponding rescue ladder (5) use Multi-section retractable structure, so that the present invention is with following significant technical effect and social benefit: there is automatic flat-adjustable function, can keep horizontal with chassis；Height after making cantilever crane return the vehicle to the garage and knock off is low, and force-bearing situation is more stable, and rescue ladder bearing capacity is stronger；Transition platform meets the psychological needs that midway adjusts with rests, and staff is made more to have a sense of security when operating.
Description
Technical field
The present invention relates to elevating fire truck technical field more particularly to Elevating platform fire truck, in particular to one kind has
The Elevating platform fire truck of the rescue ladder overhead of transition platform.
Background technique
Currently, the cantilever crane of Elevating platform fire truck, lower arm (or principal arm) and the arrangement of upper arm (or cranking arm) mainly have
Two kinds, one is upper and lower arrangements, stack, and cantilever crane height is high, and return the vehicle to the garage and knock off height height, the volume of vehicle are big；Another kind is upper arm
(or cranking arm) is mounted on the side of lower arm (or principal arm), although height reduces, lower arm unbalance loading is increased, so that lower arm and connection
Part bears biggish crankling vibration load, and force-bearing situation deteriorates；Meanwhile in order to improve riding stability, make the state vehicle that returns the vehicle to the garage and knock off
Centre-of gravity shift is smaller, and the state of returning the vehicle to the garage and knock off, which needs cantilever crane and chassis longitudinal centre line biasing oblique certain angle, arranges, increases related
Structure design and processing complexity.
Currently, rescue ladder is offset to the side of cantilever crane, cantilever design, rescue ladder bearing capacity are lower, and give work
The sense of security for making personnel is lower.
Summary of the invention
Ascending a height for technical problem to be solved by the invention is to provide a kind of rescue ladder overhead with transition platform is flat
Platform fire fighting truck overcomes prior art rescue ladder and is offset to the side of cantilever crane, cantilever design, rescue ladder bearing capacity compared with
It is low, the technical problem that height is high, volume is big and lower to the sense of security of staff of returning the vehicle to the garage and knock off.
The technical problem to be solved by the present invention is to what is be achieved through the following technical solutions:
A kind of Elevating platform fire truck of the rescue ladder overhead with transition platform, including chassis, rescue ladder, work
Platform further includes mixing cantilever crane, transition platform；
The mixing cantilever crane by lower arm, upper arm, cranking arm forms；The lower arm includes lower-left arm and bottom right arm, the upper arm
Between lower-left arm and bottom right arm, the upper arm is articulated with the middle part of the lower arm front end, and mixing cantilever crane is that bilateral symmetry is tied
Structure, such structure make the lower arm unbalance loading very little, due to the lower-left arm and bottom right arm shared load, improve described
The force-bearing situation of lower arm, the upper arm fall between the lower-left arm and the bottom right arm when returning the vehicle to the garage and knock off and reduce height of returning the vehicle to the garage and knock off；
The upper arm free end is hinged with described crank arm；The workbench is articulated with the free end of cranking arm；
The transition platform is articulated with the lower arm front end, has automatic flat-adjustable function, keeps horizontal with the chassis；Institute
State transition platform close to it is described mixing cantilever crane one end have with the passway of the lower arm and the upper arm top surface, it can be achieved that on
Lower passage；The relatively described rescue ladder of the transition platform is more stable, and area is bigger, and staff can be made to stop at stable ground
Side's adjustment rest, antisecosis while, psychologically more have a sense of security.
The rescue ladder includes lower arm ladder, upper arm ladder, ladder of cranking arm；
The lower arm ladder includes lower-left arm ladder and bottom right arm ladder, and the lower-left arm ladder is arranged in the lower-left arm
Top surface, the top surface of the bottom right arm is arranged in the bottom right arm ladder, and the lower-left arm ladder and bottom right arm ladder can lead to
The transition platform；
The top surface of the upper arm is arranged in the upper arm ladder, and the transition platform can lead to the upper arm ladder；
The top surface cranked arm is arranged in the ladder of cranking arm, and the ladder of cranking arm leads to the upper arm ladder and the work
Make platform；
The lower arm ladder, upper arm ladder, ladder of cranking arm are arranged on respective arms top of support, and ladder fixing piece is simply supported beam
Structure, relative to cantilever beam structure, structure stress situation improves, while enhancing the sense of security of staff.
According to the needs of operation height, the lower arm of the mixing cantilever crane, is cranked arm as one and/or multiple telescopic arms at upper arm
Formula structure, telescopic arm are several joint numbers；With the lower arm, upper arm, the lower arm ladder, the upper arm ladder, song matched of cranking arm
Arm ladder is one and/or multiple telescopic ladder structures, and retractable cat ladder is several joint numbers.
The telescopic arm or retractable cat ladder joint number are preferably two sections or three sections, meet the same of operation height and amplitude requirement
When, simplify structure, is arranged convenient for structure.
It is described mixing cantilever crane in order to further realize flexible Telescopic, especially use following technical measures: institute
Stating lower arm includes lower-left basic arm, lower-left telescopic arm, bottom right basic arm, bottom right telescopic arm；
The upper arm includes upper arm basic arm, upper two joint arm, upper three joint arms, and the upper arm basic arm is articulated with the lower-left
The middle part of telescopic arm and the bottom right telescopic arm front end, when returning the vehicle to the garage and knock off, the three joint arms of the upper arm shrink and fall in the lower arm
Centre, to significantly reduce height of returning the vehicle to the garage and knock off；The upper three joint arms free end is hinged with described crank arm.
The transition platform is articulated with the front end of the lower-left telescopic arm and the bottom right telescopic arm；The transition platform leans on
One end of the nearly mixing cantilever crane is equipped with the passway with the lower-left telescopic arm, bottom right telescopic arm and upper arm basic arm top surface,
It can be achieved current up and down；The transition platform can lead to the upper arm basic arm ladder；
The ladder of cranking arm is set to the top surface cranked arm, the ladder of cranking arm can lead to the upper three joint arms ladder and
The workbench.
The lower arm ladder of the rescue ladder includes that lower-left basic arm ladder, lower-left telescopic arm ladder, bottom right basic arm are climbed
Ladder, bottom right telescopic arm ladder, are arranged at the top surface of corresponding cantilever crane and with corresponding boom frame telescopic；The lower-left telescopic arm ladder and
The bottom right telescopic arm ladder can lead to the transition platform；The upper arm ladder of the rescue ladder includes that upper arm basic arm is climbed
The top surface for the corresponding mixing cantilever crane being used in combination is arranged in and with corresponding in ladder, upper two joint arms ladder, upper three joint arms ladder
Boom frame telescopic, the stable structure of all ladders constituted in this way, force-bearing situation improve, and enhance the sense of security of staff.
The transition platform and the workbench are also provided with far from one end of the mixing cantilever crane rescues passway,
The transition platform and the workbench can be used as Succor plain stage simultaneously, personnel are quickly transferred to suitable occasion, with full
The needs that a variety of occasions of foot are efficiently rescued.
The mixing cantilever crane is arranged on chassis by turntable, subframe, has the technology that can be consolidated again with flexible rotating
Effect；Generally bilateral symmetry, state of returning the vehicle to the garage and knock off vehicle centre-of gravity shift is smaller, and riding stability is good.
The lower arm ladder, upper arm ladder, crank arm ladder and transition platform guardrail be the guardrail that can be fallen, when returning the vehicle to the garage and knock off into
One step reduces placing height.
The transition platform, workbench can combine conventional fire fighting device, such as fire monitor, independent or combined can make
With being able to satisfy the needs of complicated fire-fighting and rescue environment；Fire extinguisher canvas hose is centrally arranged as far as possible with the mixing cantilever crane direction, can be dropped
It is low to be lost along stroke pressure, improve fire-fighting liquid transfer efficiency.
Amplitude oil cylinder, telescopic oil cylinder required for the present invention, leveling cyclinder, fire extinguisher canvas hose, hydraulic system, electric-control system and
Fitment combination high-quality in the prior art may be selected in the setting of the equipment such as fire pump, is that those skilled in the art may be implemented and obtain
's.
The technical solution provided by the invention have compared with the existing technology it is following significant the utility model has the advantages that
Due to such a structure: the lower-left arm and bottom right arm constitute lower arm, and upper arm is located at lower-left arm and bottom right
Between arm, upper arm is articulated with the middle part of lower arm front end, is fallen between lower-left arm and bottom right arm when upper arm returns the vehicle to the garage and knock off；Lower arm ladder, on
Arm ladder, ladder of cranking arm are mounted on the top surface of corresponding cantilever crane；Transition platform is articulated with lower arm front end；So the present invention has
Automatic flat-adjustable function can keep horizontal with chassis；Especially between lower-left arm and bottom right arm, upper arm returns the vehicle to the garage and knock off the upper arm
When fall between lower-left arm and bottom right arm, the height after making cantilever crane return the vehicle to the garage and knock off is low, and force-bearing situation is more stable, rescue ladder be installed on phase
The top surface of cantilever crane is answered, bearing capacity is stronger, meanwhile, transition platform meets the psychological needs that midway adjusts with rests, and makes work people
It more haves a sense of security when member's operation；Transition platform and workbench can be used as Succor plain stage simultaneously, meet a variety of occasions and efficiently rescue
Needs.
Detailed description of the invention
Fig. 1 is a kind of working state structure schematic diagram of the present invention
Fig. 2 is the status architecture schematic diagram that returns the vehicle to the garage and knock off of Fig. 1
Fig. 3 is another working state structure schematic diagram of the present invention
Fig. 4 is the status architecture schematic diagram that returns the vehicle to the garage and knock off of Fig. 3
In figure: 1. chassis；2. subframe；3. turntable；4. mixing cantilever crane；5. rescuing ladder；6. transition platform；7. work is flat
Platform；8. lower arm；9. lower-left arm；10. bottom right arm；11. lower arm ladder；12. lower-left arm ladder；13. bottom right arm ladder；14. upper arm；
15. upper arm ladder；16. cranking arm；17. ladder of cranking arm；18. lower-left basic arm；19. lower-left telescopic arm；20. bottom right basic arm；21.
Bottom right telescopic arm；22. lower-left basic arm ladder；23. lower-left telescopic arm ladder；24. bottom right basic arm ladder；25. bottom right is flexible
Arm ladder；26. upper arm basic arm；Two joint arm on 27.；Three joint arms on 28.；29. upper arm basic arm ladder；30. two joint arms are climbed on
Ladder；Three joint arms ladder on 31..
Specific embodiment
Embodiment 1
A kind of Elevating platform fire truck of rescue ladder overhead with transition platform as depicted in figs. 1 and 2, including bottom
Disk 1, subframe 2, turntable 3, mixing cantilever crane 4, rescue ladder 5, workbench 7, transition platform 6；
The mixing cantilever crane 4 by lower arm 8, upper arm 14, cranking arm 16 forms, lower arm 8 has lower-left arm 9 and 10 two, bottom right arm
Point, upper arm 14 is between lower-left arm 9 and bottom right arm 10, and upper arm 14 is articulated with the middle part of 8 front end of lower arm, 8 unbalance loading very little of lower arm,
10 shared load of lower-left arm 9 and bottom right arm, improves down 8 arm force-bearing situations, upper arm 14 falls in lower-left arm 9 and the right side when returning the vehicle to the garage and knock off
Height of returning the vehicle to the garage and knock off is reduced between lower arm 10；14 free end of upper arm, which is hinged with, cranks arm 16, workbench 7 be articulated with crank arm 16 freedom
End, the setting rescue of workbench 7 passway.
The transition platform 6 of the present embodiment is articulated with 8 front end of lower arm, has automatic flat-adjustable function, keeps horizontal with chassis 1；
Transition platform 6 has the passway with 14 top surface of lower arm 8 and upper arm, it can be achieved that current up and down, mistake close to one end of mixing cantilever crane 4
Crossing platform 6 also has rescue passway far from one end of mixing cantilever crane 4, meets the needs of a variety of rescue occasions.6 phase of transition platform
More stable to rescue ladder 5, area is bigger, and personnel can be made to stop at stable place adjustment rest, while antisecosis, the heart
It more haves a sense of security in reason.
The rescue ladder 5 is made of lower arm ladder 11, upper arm ladder 15, ladder 17 of cranking arm；Lower arm ladder 11 has a left side
13 two parts of lower arm ladder 12 and bottom right arm ladder, lower-left arm ladder 12 are installed on the top surface of lower-left arm 9, and bottom right arm ladder 13 is pacified
Top surface loaded on bottom right arm 10, lower-left arm ladder 12 and bottom right arm ladder 13 can lead to transition platform 6；Upper arm ladder 15 is installed
In the top surface of upper arm 14, transition platform 6 can lead to upper arm ladder 15；Ladder 17 of cranking arm be installed on crank arm 16 top surface, crank arm and climb
Ladder 17 can lead to upper arm ladder 15 and workbench 7；Lower arm ladder 11, upper arm ladder 15, ladder 17 of cranking arm are installed in accordingly
On cantilever crane top surface, structure stress situation improves, and enhances the sense of security.
The lower arm ladder 11, upper arm ladder 15, crank arm ladder 17 and transition platform 6 guardrail can fall, return the vehicle to the garage and knock off
When reduce height.
The conventional fire fighting device such as fire monitor, setting independent or combined can be set as needed in workbench 7 and transition platform 6
It uses, is able to satisfy the needs of complicated fire-fighting and rescue environment；Fire extinguisher canvas hose is centrally arranged as far as possible with mixing cantilever crane, is reduced and is damaged along journey
It loses.
Embodiment 2
Another kind as shown in Figure 3 and Figure 4 has the Elevating platform fire truck of the rescue ladder overhead of transition platform, including
By chassis 1, subframe 2, turntable 3, mixing cantilever crane 4, ladder 5, workbench 7, transition platform 6 are rescued,
Mixing cantilever crane 4 by lower arm 8, upper arm 14, cranking arm 16 forms；When lower arm 8 is using two joint arm telescopic structures, including a left side
Lower basic arm 18, lower-left telescopic arm 19, bottom right basic arm 20, bottom right telescopic arm 21；Upper arm 14 uses two joint arm telescopic structures
When, including upper arm basic arm 26, upper two joint arm 27, upper three joint arms 28；Upper arm basic arm 26 is articulated with lower-left telescopic arm 19 and the right side
The middle part of lower 21 front end of telescopic arm, when returning the vehicle to the garage and knock off, the centre of lower arm 8 is shunk and fallen in the three joint arms of upper arm 14, reduces the height that returns the vehicle to the garage and knock off
Degree；Upper 28 free end of three joint arms, which is hinged with, cranks arm 16, workbench 7 be articulated with crank arm 16 free end, the setting of workbench 7 rescues
Help passway.
The transition platform 6 of the present embodiment is articulated with the front end of lower-left telescopic arm 19 and bottom right telescopic arm 21, has automatic adjust
Flat function keeps horizontal with chassis 1；Transition platform 6 has close to one end of mixing cantilever crane 4 to be stretched with lower-left telescopic arm 19, bottom right
The passway of 26 top surface of contracting arm 21 and upper arm basic arm is, it can be achieved that current up and down, the one end of transition platform 6 far from mixing cantilever crane 4
Also there is rescue passway, meet the needs of a variety of rescue occasions.
The rescue ladder 5 of the present embodiment is made of lower arm ladder 11, upper arm ladder 15, ladder 17 of cranking arm；Lower arm ladder 11
Including lower-left basic arm ladder 22, lower-left telescopic arm ladder 23, bottom right basic arm ladder 24, bottom right telescopic arm ladder 25, pacify
Mounted in corresponding cantilever crane top surface and with corresponding boom frame telescopic；Lower-left telescopic arm ladder 23 and bottom right telescopic arm ladder 25 can lead to
Transition platform 6；Upper arm ladder 15 includes two joint arm ladders 30, upper three joint arms ladder 31 on upper arm basic arm ladder 29,30, is pacified
Mounted in corresponding cantilever crane top surface and with corresponding boom frame telescopic；Transition platform 6 can lead to upper arm basic arm ladder 29；It cranks arm ladder 17
Be installed on crank arm 16 top surface, ladder 17 of cranking arm can lead to upper three joint arms ladder 31 and workbench 7；All ladder structure stresses
Situation improves, and enhances the sense of security.
By embodiment 1 and embodiment 2 as it can be seen that a kind of ascending a height for rescue ladder overhead with transition platform of the invention is flat
Platform fire fighting truck have following beneficial effect: cantilever crane return the vehicle to the garage and knock off height low and force-bearing situation it is more preferable；Rescue ladder bearing capacity more
By force, it makes one more to have a sense of security；The application of transition platform meets the needs of complicated fire-fighting and rescue environment；Meet midway adjustment and stops
The psychological needs of breath make one more to have a sense of security；Transition platform and workbench can be used as Succor plain stage simultaneously, meet a variety of occasions
The needs efficiently rescued are applied in practice, have significant social benefit.
Claims (9)
1. it is a kind of with transition platform rescue ladder overhead Elevating platform fire truck, including chassis (1), rescue ladder (5),
Workbench (7), it is characterized in that: further including mixing cantilever crane (4), transition platform (6)；
The mixing cantilever crane (4) by lower arm (8), upper arm (14), crank arm (16) form；The lower arm (8) include lower-left arm (9) and
Bottom right arm (10), the upper arm (14) are located between lower-left arm (9) and bottom right arm (10), the upper arm (14) be articulated with it is described under
The middle part of arm (8) front end；(16) are cranked arm described in being hinged in upper arm (14) free end；The workbench (7) is articulated with institute
State (16) free end of cranking arm；
The transition platform (6) is articulated with the lower arm (8) front end, keeps horizontal with the chassis (1)；The transition platform
(6) there is the passway with the lower arm (8) and the upper arm (14) top surface close to one end of mixing cantilever crane (4)；
The rescue ladder (5) includes lower arm ladder (11), upper arm ladder (15), ladder of cranking arm (17)；
The lower arm ladder (11) includes lower-left arm ladder (12) and bottom right arm ladder (13), lower-left arm ladder (12) setting
In the top surface of the lower-left arm (9), the bottom right arm ladder (13) is arranged in the top surface of the bottom right arm (10), the lower-left arm
Ladder (12) and bottom right arm ladder (13) lead to the transition platform (6)；
In the top surface of the upper arm (14), the transition platform (6) leads to the upper arm ladder for upper arm ladder (15) setting
(15)；
The ladder of cranking arm (17) setting leads to the upper arm ladder in the top surface for cranking arm (16), the ladder of cranking arm (17)
(15) and the workbench (7)；
The lower arm ladder (11), upper arm ladder (15), ladder of cranking arm (17) are arranged on respective arms top of support.
2. the Elevating platform fire truck of the rescue ladder overhead according to claim 1 with transition platform, it is characterized in that:
The mixing lower arm (8) of cantilever crane (4), upper arm (14), crank arm (16) be one and/or multiple telescopic boom structures, telescopic arm
For several joint numbers；With the lower arm (8), upper arm (14), the lower arm ladder (11) that (16) match cranked arm, upper arm ladder
(15), ladder (17) are cranked arm as one and/or multiple telescopic ladder structures, retractable cat ladder is several joint numbers.
3. the Elevating platform fire truck of the rescue ladder overhead according to claim 2 with transition platform, it is characterized in that:
The telescopic arm or retractable cat ladder joint number are two sections or three sections.
4. the Elevating platform fire truck of the rescue ladder overhead according to claim 2 with transition platform, it is characterized in that:
The lower arm (8) includes lower-left basic arm (18), lower-left telescopic arm (19), bottom right basic arm (20), bottom right telescopic arm (21)；
The upper arm (14) includes upper arm basic arm (26), upper two joint arm (27), upper three joint arms (28), the upper arm basic arm
(26) it is articulated with the middle part of the lower-left telescopic arm (19) and the bottom right telescopic arm (21) front end；The upper three joint arms (28) are certainly
It is hinged with by end and described cranks arm (16).
5. the Elevating platform fire truck of the rescue ladder overhead according to claim 4 with transition platform, it is characterized in that:
The transition platform (6) is articulated with the front end of the lower-left telescopic arm (19) and the bottom right telescopic arm (21)；The transition is flat
Platform (6) is equipped with and the lower-left telescopic arm (19), bottom right telescopic arm (21) and upper arm base close to one end of mixing cantilever crane (4)
The passway of this arm (26) top surface；The transition platform (6) leads to the upper arm basic arm ladder (29)；
The ladder of cranking arm (17) is set to the top surface for cranking arm (16), and the ladder of cranking arm (17) leads to the upper three joint arms
Ladder (31) and the workbench (7).
The lower arm ladder (11) of rescue ladder (5) includes lower-left basic arm ladder (22), lower-left telescopic arm ladder (23), the right side
Lower basic arm ladder (24), bottom right telescopic arm ladder (25), are arranged at the top surface of corresponding cantilever crane and with corresponding boom frame telescopic；Institute
It states lower-left telescopic arm ladder (23) and the bottom right telescopic arm ladder (25) and leads to the transition platform (6) respectively；The rescue
The upper arm ladder (15) of ladder (5) includes upper arm basic arm ladder (29), upper two joint arms ladder (30), upper three joint arms ladder
(31), it is arranged at the top surface of corresponding cantilever crane and with corresponding boom frame telescopic.
6. the Elevating platform fire truck of the rescue ladder overhead according to claim 1 or 2 with transition platform, feature
Be: the transition platform (6) and the workbench (7) are additionally provided with far from one end of mixing cantilever crane (4) and rescue passway.
7. the Elevating platform fire truck of the rescue ladder overhead according to claim 1 or 2 with transition platform, feature
Be: the mixing cantilever crane (4) is arranged on chassis (1) by turntable (3), subframe (2).
8. the Elevating platform fire truck of the rescue ladder overhead according to claim 1 or 2 with transition platform, feature
Be: the lower arm ladder (11), upper arm ladder (15), ladder of cranking arm (17) and transition platform (6) guardrail be the shield that can be fallen
Column.
9. the Elevating platform fire truck of the rescue ladder overhead according to claim 1 or 2 with transition platform, feature
It is: the conventional fire fighting device of the transition platform (6), workbench (7) combination.
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| CN201910750371.4A CN110327569B (en) | 2019-08-14 | 2019-08-14 | Rescue cat ladder overhead climbing platform fire truck with transition platform |
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| CN201910750371.4A CN110327569B (en) | 2019-08-14 | 2019-08-14 | Rescue cat ladder overhead climbing platform fire truck with transition platform |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111084947A (en) * | 2019-12-19 | 2020-05-01 | 长沙中联消防机械有限公司 | Arm support unit, aerial ladder fire truck and aerial ladder fire truck rescue method |
| CN112158784A (en) * | 2020-10-30 | 2021-01-01 | 徐州徐工随车起重机有限公司 | Multi-platform foldable tunnel maintenance operation device |
| CN112319344A (en) * | 2020-10-30 | 2021-02-05 | 徐州徐工随车起重机有限公司 | Self-walking tunnel maintenance operation vehicle |
| WO2024193030A1 (en) * | 2023-03-21 | 2024-09-26 | 三一汽车制造有限公司 | Crank arm structure, boom structure, and elevating platform fire truck |
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| CN111084947A (en) * | 2019-12-19 | 2020-05-01 | 长沙中联消防机械有限公司 | Arm support unit, aerial ladder fire truck and aerial ladder fire truck rescue method |
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| CN112158784B (en) * | 2020-10-30 | 2021-11-23 | 徐州徐工随车起重机有限公司 | Multi-platform foldable tunnel maintenance operation device |
| WO2022089086A1 (en) * | 2020-10-30 | 2022-05-05 | 徐州徐工随车起重机有限公司 | Self-walking tunnel maintenance working vehicle |
| JP7483937B2 (en) | 2020-10-30 | 2024-05-15 | 徐州徐工随車起重机有限公司 | Self-propelled tunnel maintenance vehicle |
| WO2024193030A1 (en) * | 2023-03-21 | 2024-09-26 | 三一汽车制造有限公司 | Crank arm structure, boom structure, and elevating platform fire truck |
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