CN211950293U - Auxiliary ladder for aerial ladder, aerial ladder device and fire fighting truck - Google Patents
Auxiliary ladder for aerial ladder, aerial ladder device and fire fighting truck Download PDFInfo
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- CN211950293U CN211950293U CN202020197119.3U CN202020197119U CN211950293U CN 211950293 U CN211950293 U CN 211950293U CN 202020197119 U CN202020197119 U CN 202020197119U CN 211950293 U CN211950293 U CN 211950293U
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Abstract
The utility model discloses an auxiliary ladder, aerial ladder device and fire engine for aerial ladder, auxiliary ladder are used for being connected with the deck of walking of fire engine, and auxiliary ladder includes pedal assembly, link mechanism and frame, and the frame is fixed to be set up on walking the deck, and pedal assembly passes through link mechanism with the frame and links to each other, and aerial ladder device includes auxiliary ladder and aerial ladder, and auxiliary ladder links to each other with the aerial ladder, and the aerial ladder is used for rotationally linking to each other with the deck of walking of fire engine. Aerial ladder passes through the revolving stage and can rotate on the deck of walking of fire engine, supplementary ladder can follow aerial ladder through with aerial ladder fixed connection and move together, be equipped with aerial ladder device on the fire engine, when the fire engine carries out rescue work, the fireman with by the succor can pass through aerial ladder from top to bottom and remove to walk the deck, guaranteed the security and the travelling comfort of fireman with by the succor about aerial ladder, speed when also having promoted personnel about the aerial ladder simultaneously, whole rescue speed has been improved.
Description
Technical Field
The utility model relates to a fire-fighting equipment field, especially an auxiliary ladder, aerial ladder device and fire engine for aerial ladder.
Background
As shown in fig. 1-2, aerial ladder fire fighting is widely used at home and abroad as a very important rescue device, and at present, the main operation modes of the aerial ladder fire fighting vehicle are as follows: the aerial ladder frame can reach the operation height through lifting and stretching, so that firefighters and fire-fighting tools can be conveyed to the high altitude, or trapped personnel can be rescued from the high altitude, and the trapped personnel can climb up and down the aerial ladder frame only through the working bucket or the related personnel. The aerial ladder vehicles with the height of 42 meters or more are basically provided with pulleys, the aerial ladder frames are used as guide rails, the aerial ladder vehicles slide up and down under the traction of steel wire ropes, and the lifting buckets can quickly slide along the aerial ladder vehicles, so that workers or rescued persons can be quickly transported at high altitude and on the ground. However, the aerial ladder vehicles with the height of 32 meters or less are rarely provided with the pulleys, so that rescue workers generally enter the working bucket from a ladder or a fixed pedal in the middle of the vehicle when rescue is carried out on the aerial ladder vehicles, the working bucket firstly falls to be close to the ground after rescue, the rescued workers are conveyed to the ground, if the rescued workers are more, the rescued workers need to climb the root of the aerial ladder frame to the rotary table and then reach the ground after passing through the walking table plate, and the root of the aerial ladder frame is generally arranged at the tail part of the walking table plate of the fire fighting vehicle, so that the rescued workers are difficult to climb at the transition part of the rotary table and the aerial ladder frame, the aerial ladder vehicles are easy to fall from the tail part of the walking table plate, the ascending and descending safety and comfort of the workers cannot be guaranteed, meanwhile.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: to the problems existing in the prior art, an auxiliary ladder for an aerial ladder, an aerial ladder device and a fire fighting truck are provided.
In order to realize the purpose, the utility model discloses a technical scheme be:
an auxiliary ladder for an aerial ladder is used for being connected with a walking board of a fire fighting truck and comprises a pedal assembly, a connecting rod mechanism and a rack;
the frame is fixedly arranged on the walking board, and the pedal assembly is connected with the frame through a connecting rod mechanism.
Through the structure, the auxiliary ladder consisting of the pedal assembly, the connecting rod mechanism and the frame is used on the walking platform plate of the fire fighting truck, when the fire fighting truck rescues, the auxiliary ladder can be convenient for a fire fighter or a rescuer to get on or off the fire fighter, the safety of the fire fighter and the rescuers is ensured, and the practicability and the comfort of the fire fighting truck are improved.
As the utility model discloses a preferred scheme, the footboard subassembly includes two at least footboards. Through the structure, the aerial ladder can be used for climbing firemen and rescued persons.
As the utility model discloses a preferred scheme, link mechanism includes first drive lever, first driven lever and first connecting rod, first drive lever, first driven lever and frame link to each other and form a parallelogram link mechanism, and first drive lever links to each other with the scaling ladder, and footboard subassembly links to each other with first connecting rod, and first driven lever links to each other with first connecting rod. Through the structure, the frame is as parallelogram link mechanism's dead lever, when first drive lever takes place to remove, first connecting rod and first driven lever remove thereupon to drive the footboard subassembly form and change, thereby satisfy and climb this operation requirement of scaling ladder through the footboard subassembly, adopt parallelogram link mechanism simultaneously, footboard subassembly translation all the time, self does not take place the rotation, makes footboard subassembly itself be located the horizontal plane all the time, convenient to use, the utility model provides a link to each other between two parts indicate that both including directly linking to each other also include indirectly between two parts.
As the utility model discloses a preferred scheme, link mechanism still includes second connecting rod and installation pole, the installation pole be used for with aerial ladder fixed connection, the one end of second connecting rod is articulated with first active lever, the other end of second connecting rod is articulated with the installation pole. Through the structure, the mounting rod can rotate along with the movement change of the aerial ladder, a connecting line between the hinge point of the second connecting rod and the mounting rod and the rotating shaft of the mounting rod is a virtual second driving rod, a connecting line between the other hinge point of the second connecting rod and the rotating shaft of the first driving rod is a virtual second driven rod, a connecting line between the rotating shaft of the mounting rod and the rotating shaft of the first driving rod is a virtual fixed rod, the virtual second driving rod, the virtual second driven rod, the virtual fixed rod and the second connecting rod form a plane four-bar mechanism, when the mounting rod rotates along with the rotation of the aerial ladder, the virtual second driving rod can move along with the mounting rod, and the second connecting rod drives the virtual second driven rod to rotate. And because the second driven rod and the first driving rod are relatively fixed, the second driving rod can rotate along with the rotation of the mounting rod, so that the pedal assembly can translate along with the rotation of the aerial ladder, and the pedal assembly can be opened or closed.
Further, when the installation is carried out, a gap is formed between the rotating shaft of the installation rod and a hinge point of the second connecting rod and the installation rod.
As the preferred scheme of the utility model, supplementary ladder still includes the handrail, handrail and link mechanism fixed connection. Through above-mentioned structure, the handrail provides the place of support for the firefighter with by the rescue personnel when supplementary ladder from top to bottom, and personnel's safety when guaranteeing supplementary ladder from top to bottom, the handrail can also be followed link mechanism's translation and opened or withdraw, can practice thrift the space.
As the utility model discloses a preferred scheme, supplementary ladder includes the connecting piece, and the connecting piece includes first round pin axle, and footboard subassembly is articulated through first round pin axle with link mechanism. Through the structure, the pin shaft can realize the movement between the pedal assembly and the connecting rod mechanism.
The utility model provides an aerial ladder device, includes aerial ladder and above-mentioned supplementary ladder, supplementary ladder links to each other with the aerial ladder, and the aerial ladder is used for rotationally linking to each other with the walk board of fire engine.
Through the structure, the auxiliary ladder can follow the aerial ladder to move together through being fixedly connected with the aerial ladder, when the fire truck is used for rescue, a fireman and rescued personnel can go up and down the aerial ladder through the auxiliary ladder and move to the walking board, the safety and the comfort of the fireman and rescued personnel can be guaranteed, the speed of the personnel during the ascending and descending of the aerial ladder is also improved, and the whole rescue speed is improved.
As the utility model discloses a preferred scheme, the bottom of scaling ladder is equipped with the revolving stage, and the revolving stage rotationally is connected with walking the platen. Through the structure, the aerial ladder can rotate on the walking board of the fire fighting truck through the rotary table.
As a preferred scheme of the utility model, the connecting piece also comprises a second pin shaft, and the scaling ladder is connected with the connecting rod mechanism through the second pin shaft;
when the scaling ladder rotates, the scaling ladder is used for driving the pedal assembly to move through the connecting rod mechanism. Through the structure, the aerial ladder is connected with the connecting rod mechanism through the second pin shaft.
The aerial ladder device is arranged on a fire fighting truck body and is rotatably connected with the fire fighting truck.
Through the structure, the fire fighting truck with the aerial ladder device can rescue through the aerial ladder device, so that a fireman and rescued personnel can move between the aerial ladder and the fire fighting truck through the auxiliary ladder of the aerial ladder device, and the safety and the comfort of the fireman and the rescued personnel going up and down the aerial ladder are guaranteed.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
the auxiliary ladder consisting of the pedal assembly, the connecting rod mechanism and the frame is used on the walking platform plate of the fire fighting truck, when the fire fighting truck carries out rescue, the auxiliary ladder can be convenient for a fire fighter or can be used for getting on or off by the rescue personnel, the safety of the fire fighter and the rescue personnel is ensured, and the practicability and the comfort of the fire fighting truck are improved.
Drawings
Fig. 1 is a schematic structural diagram of a fire fighting truck aerial ladder device in the prior art.
Fig. 2 is a schematic structural diagram of a fire fighting truck aerial ladder device in the prior art.
Fig. 3 is a schematic structural view of the aerial ladder device in a retracted state.
Fig. 4 is a partially enlarged view of the area a in fig. 3.
Fig. 5 is an exploded view of the auxiliary ladder of the present invention.
Fig. 6 is a schematic structural view of the scaling ladder device according to the present invention in an open state.
Fig. 7 is a schematic structural view of the open state of the auxiliary ladder of the present invention.
Fig. 8 is a schematic structural view of the auxiliary ladder in the retracted state.
Fig. 9 is a schematic view of the link mechanism of the present invention.
Fig. 10 is a schematic structural view of the fire fighting truck of the present invention.
Fig. 11 is a schematic structural view of the fire fighting truck of the present invention.
Icon: 1-a turntable; 2-a walking board; 3-scaling ladder; 4-ladder frame step bar; 5-outer handrail; 6-inner handrail; 7-a frame; 8-a first driven lever; 9-a first pedal; 10-a second pedal; 11-a third pedal; 12-a first active lever; 13-a second link; 14-mounting a rod; 15-a second pin; 16-a first pin; 17-a first link; 18-a virtual second active bar; 19-a virtual second driven lever; 20-virtual fixed bar; 21-fire engine.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Examples
As shown in fig. 3 to 11, the present embodiment provides an auxiliary ladder for an aerial ladder, which is used on a deck 2 of a fire truck 21, the auxiliary ladder including a step assembly, a link mechanism, and a frame 7;
the connecting piece comprises a first pin shaft 16 and a second pin shaft 15, specifically, the first pin shaft 16 is a short pin shaft, and the second pin shaft 15 is a long pin shaft;
the connecting rod mechanism comprises a first driving rod 12, a first driven rod 8 and a first connecting rod 17, the rack 7 is fixed on the aerial ladder 3 of the fire fighting truck 21, and specifically, the rack 7 is a pedal at the rotary table; the two ends of the first connecting rod 17 are respectively hinged with the first driving rod 12 and the first driven rod 8 through the first pin shaft 16, the first driving rod 12, the rack 7, the first driven rod 8 and the first connecting rod 17 form a parallelogram connecting rod mechanism, the rack 7 is a fixed rod of the parallelogram connecting rod mechanism, when the first driving rod 12 moves, the first connecting rod 17 and the first driven rod 8 move along with the first driving rod, and meanwhile, the rack 7 is positioned at the bottom of the connecting rod mechanism, so that a transition place can be provided for a firefighter and rescued people to get on and off the auxiliary ladder, and the comfort of the auxiliary ladder is improved;
the quantity of the parallelogram link mechanisms is two groups, the pedal assemblies are connected to the two groups of the parallelogram link mechanisms, and the two groups of the parallelogram link mechanisms are oppositely arranged.
The pedal assembly is fixedly connected with the first connecting rod 17 and comprises a first pedal 9, a second pedal 10 and a third pedal 11, the first pedal 9 is positioned at the top of the connecting rod mechanism, the second pedal 10 is positioned at the lower end of the first pedal 9, and the third pedal 11 is positioned at the lower end of the second pedal 10;
the auxiliary ladder further comprises handrails, wherein the handrails comprise an inner handrail 6 and an outer handrail 5, the inner handrail 6 and the outer handrail 5 are positioned on the same side of the auxiliary ladder, the inner handrail 6 is fixedly connected with the first driving rod 12, and the bottom of the outer handrail 5 is fixedly connected with the rack 7;
the connecting rod mechanism further comprises a second connecting rod 13 and a mounting rod 14, the mounting rod 14 is used for being fixedly connected with the aerial ladder 3, one end of the second connecting rod 13 is hinged to the first driving rod 12 through a second pin shaft 15, and the other end of the second connecting rod 13 is hinged to the mounting rod 14 through a second pin shaft 15. The mounting rod 14 can rotate along with the movement change of the aerial ladder 3, a gap is arranged between a rotating shaft of the mounting rod 14 and a hinged point of the second connecting rod 13 and the mounting rod 14, a connecting line between a hinged point of the second connecting rod 13 and the mounting rod 14 and a rotating shaft of the mounting rod 14 is a virtual second driving rod 18, a connecting line between another hinged point of the second connecting rod 13 and a rotating shaft of the first driving rod 12 is a virtual second driven rod 19, a connecting line between a rotating shaft of the mounting rod 14 and a rotating shaft of the first driving rod 12 is a virtual fixed rod 20, the virtual second driving rod 18, the virtual second driven rod 19, the virtual fixed rod 20 and the second connecting rod 13 form a planar four-bar mechanism, when the mounting rod 14 follows the aerial ladder 3, the virtual second driving rod 18 moves, and the second connecting rod 13 and the virtual second driven rod 19 move together to follow the connecting rod mechanism and the aerial ladder 3.
The embodiment also provides an aerial ladder device, which comprises the auxiliary ladder and an aerial ladder 3, wherein the aerial ladder 3 is positioned on the walking board 2 of the fire truck 21, the aerial ladder 3 comprises a rotary table 1, the rotary table 1 is rotatably connected with the walking board 2, and the auxiliary ladder is fixedly connected with the aerial ladder 3;
one side of the frame 7 far away from the inner handrail 6 and the outer handrail 5 is fixedly connected with the rotary table 1.
The embodiment also provides a fire truck 21, and the aerial ladder device is arranged on the fire truck 21 and rotatably connected with the fire truck 21.
The beneficial effect that is used for supplementary ladder, aerial ladder device and fire engine 21 of aerial ladder that this embodiment provided lies in:
the auxiliary ladder consisting of the pedal assembly, the connecting rod mechanism and the frame is used on the walking board 2 of the fire truck 21, and when the fire truck 21 carries out rescue, the auxiliary ladder can be convenient for a fire fighter or a rescued person to get on or off the vehicle, so that the safety of the fire fighter and the rescued person is ensured, and the practicability and the comfort of the fire truck 21 are improved;
the handrails comprise an inner handrail 6 and an outer handrail 5, the inner handrail 6 and the outer handrail 5 are positioned on the same side of the auxiliary ladder, the inner handrail 6 is fixedly connected with the first driving rod 12, the bottom of the outer handrail 5 is fixedly connected with the rack 7, and the inner handrail 6 and the outer handrail 5 provide a support place for a fireman and rescued people when going up and down the auxiliary ladder, so that the safety of the fireman when going up and down the auxiliary ladder is ensured;
aerial ladder device is including supplementary ladder and aerial ladder 3, aerial ladder 3 is located fire engine 21 and walks on platen 2, aerial ladder 3's revolving stage 1 with walk platen 2 rotationally be connected, supplementary ladder and aerial ladder 3 fixed connection, aerial ladder 3 can rotate on the platen 2 of walking of fire engine 21 through revolving stage 1, supplementary ladder can follow aerial ladder 3 through 3 fixed connection with aerial ladder and move together, when fire engine 21 carries out rescue work, the fireman with by the succor can pass through aerial ladder 3 about the supplementary ladder and move to walk on the platen 2, the security and the travelling comfort of aerial ladder 3 about the fireman with by the succor have been guaranteed, the speed when also having promoted personnel about aerial ladder 3 simultaneously, holistic rescue speed has been improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. An auxiliary ladder for an aerial ladder is used for being connected with a walking board (2) of a fire fighting truck, and is characterized by comprising a pedal assembly, a connecting rod mechanism and a frame (7);
the rack (7) is arranged on the walking board (2), and the pedal assembly is connected with the rack (7) through the connecting rod mechanism;
the connecting rod mechanism comprises a first driving rod (12), a first driven rod (8) and a first connecting rod (17), the first driving rod (12), the first driven rod (8) and the rack (7) are connected to form a parallelogram connecting rod mechanism, the first driving rod (12) is connected with the scaling ladder, the pedal assembly is connected with the first connecting rod (17), and the first driven rod (8) is connected with the first connecting rod (17);
the connecting rod mechanism further comprises a second connecting rod (13) and an installation rod (14), the installation rod (14) is used for being fixedly connected with the aerial ladder (3), one end of the second connecting rod (13) is hinged to the first driving rod (12), and the other end of the second connecting rod (13) is hinged to the installation rod (14).
2. An auxiliary ladder for an aerial ladder as claimed in claim 1, wherein the step assembly comprises at least two steps.
3. The auxiliary ladder for an aerial ladder of claim 1, further comprising an armrest fixedly connected to the linkage mechanism.
4. An auxiliary ladder for an aerial ladder as claimed in claim 1, further comprising a connection comprising a first pin (16), the pedal assembly being hinged to the linkage via the first pin (16).
5. Aerial ladder arrangement, characterized in that it comprises an aerial ladder (3) and an auxiliary ladder according to any of the preceding claims 1-3, which auxiliary ladder is connected to the aerial ladder (3), the aerial ladder (3) being intended for rotatable connection to the running board (2) of the fire engine.
6. Aerial ladder device as claimed in claim 5, characterized in that the aerial ladder (3) is provided at its bottom with a turntable (1), said turntable (1) being rotatably connected to said walking board (2).
7. The aerial ladder device as claimed in claim 5, further comprising a connecting member comprising a first pin (16), wherein the pedal assembly is hinged to the linkage mechanism by the first pin (16);
the connecting piece also comprises a second pin shaft (15), and the scaling ladder (3) is connected with the connecting rod mechanism through the second pin shaft (15);
when the scaling ladder (3) rotates, the pedal assembly is driven to move through the connecting rod mechanism.
8. A fire fighting truck, characterized in that the truck body is provided with an aerial ladder device as claimed in any one of the claims 5-7, said aerial ladder device being rotatably connected to said fire fighting truck.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020197119.3U CN211950293U (en) | 2020-02-21 | 2020-02-21 | Auxiliary ladder for aerial ladder, aerial ladder device and fire fighting truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020197119.3U CN211950293U (en) | 2020-02-21 | 2020-02-21 | Auxiliary ladder for aerial ladder, aerial ladder device and fire fighting truck |
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| Publication Number | Publication Date |
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| CN211950293U true CN211950293U (en) | 2020-11-17 |
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| CN202020197119.3U Active CN211950293U (en) | 2020-02-21 | 2020-02-21 | Auxiliary ladder for aerial ladder, aerial ladder device and fire fighting truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206874A (en) * | 2020-02-21 | 2020-05-29 | 四川川消消防车辆制造有限公司 | Auxiliary ladder for aerial ladder, aerial ladder device and fire fighting truck |
-
2020
- 2020-02-21 CN CN202020197119.3U patent/CN211950293U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111206874A (en) * | 2020-02-21 | 2020-05-29 | 四川川消消防车辆制造有限公司 | Auxiliary ladder for aerial ladder, aerial ladder device and fire fighting truck |
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