CN212642564U

CN212642564U - High altitude rescue car with gyration extends butt joint platform's ladder step auto leveling

Info

Publication number: CN212642564U
Application number: CN202020786959.3U
Authority: CN
Inventors: 周碧池; 杨立新; 赵俊朋; 张海廷
Original assignee: Beijing Zhongzhuo Fire Fighting Equipment Co ltd
Current assignee: Beijing Zhongzhuo Fire Fighting Equipment Co ltd
Priority date: 2020-05-13
Filing date: 2020-05-13
Publication date: 2021-03-02
Anticipated expiration: 2030-05-13

Abstract

The utility model relates to a fire rescue technical field especially relates to a high altitude rescue car of ladder step auto leveling with gyration extension butt joint platform. This high altitude rescue car includes: the device comprises a chassis, a ladder frame, a rotary extension butt-joint platform and a butt-joint platform leveling mechanism, wherein the ladder frame performs amplitude variation motion in the vertical direction; the ladder frame is provided with a ladder step connecting rod and a plurality of leveling ladder steps which are parallel to each other and arranged at intervals along the length direction of the ladder frame, the leveling ladder steps are hinged to the ladder frame, and the ladder step connecting rod is hinged to the adjacent leveling ladder steps; one end of the butt joint platform leveling mechanism is hinged to the front end of the ladder frame, and the other end of the butt joint platform leveling mechanism is hinged to the rotary extending butt joint platform and used for driving the leveling ladder step to be adjusted to be in a horizontal state. The embodiment of the utility model provides an in change into with ladder frame articulated leveling ladder step through the fixed step ladder step of tradition, when ladder frame becomes the amplitude motion, butt joint platform levelling mechanism drive leveling ladder step is transferred to the horizontality, and the people steps on more comfortable, safety, increases rescue security, improves rescue efficiency.

Description

High altitude rescue car with gyration extends butt joint platform's ladder step auto leveling

Technical Field

The utility model relates to a fire rescue technical field, concretely relates to high altitude rescue car of ladder step auto leveling with gyration extension butt joint platform.

Background

In the occasions such as high-speed rails and light rails, the occasions such as high-rise commercial urban squares and the like, more people exist, and evacuation and rescue are needed in time when fire or other emergency occurs. People can be evacuated by adopting an aerial ladder fire truck or a rescue device of a lifting fire truck.

At present, ladder frames of an ordinary aerial ladder fire truck and a climbing platform fire truck are in ladder climbing forms, the foot positions of people are square pipes or round pipes, the contact area is small, and the comfort and the safety of people are poor; the rescue crawling ladder has low bearing capacity and limited number of people for rescue at one time; the ladder steps are step ladder steps fixed on the ladder frame, the bearing capacity is strong, in actual rescue, the arm support needs different amplitude angles, but the angle of the pedal plane of the ladder steps can not change along with the amplitude angle of the ladder frame, when the amplitude angle is greatly different, the ladder steps incline obviously relative to the horizontal plane, the people feel badly when stepping on the ladder, and the people feel hurry and nervous originally, under the condition, many people, especially old, young and weak people, do not dare to go up the rescue ladder step, or do not dare to move in the midway of the rescue ladder step, and the rescue efficiency is seriously influenced.

Therefore, it is necessary to design a high-altitude rescue vehicle capable of meeting the requirement of automatic leveling of the ladder step during high-altitude rescue.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the above-mentioned technical problem who exists among the prior art, provide a high altitude rescue car of ladder step automatic leveling with gyration extension butt joint platform, for traditional fixed step, butt joint platform levelling mechanism drive leveling ladder step automatic leveling increases rescue security, improves rescue efficiency.

In order to achieve the technical purpose, the embodiment of the utility model provides a high altitude rescue car of ladder step auto leveling with rotary extension docking platform is provided, including chassis, ladder frame, connect in docking platform and docking platform levelling mechanism are extended in the gyration of ladder frame front end, wherein: the ladder frame can perform amplitude variation motion in the vertical direction relative to the chassis; the ladder frame is provided with a ladder step connecting rod and a plurality of leveling ladder steps which are parallel to each other and arranged at intervals along the length direction of the ladder frame, the leveling ladder steps are hinged to the ladder frame, and the ladder step connecting rod is hinged to the adjacent leveling ladder steps; one end of the butt joint platform leveling mechanism is hinged to the front end of the ladder frame, the other end of the butt joint platform leveling mechanism is hinged to the rotary extending butt joint platform, and the butt joint platform leveling mechanism is used for driving the leveling ladder step to be adjusted to be in a horizontal state.

Further, the ladder frame comprises an upper telescopic ladder frame; the leveling ladder step is provided with a stepping part and fixing parts connected to two sides of the stepping part, the fixing parts of the leveling ladder step are hinged with the ladder step connecting rod, the middle part of the stepping part is hinged with the upper telescopic ladder frame, and the hinge joint of the leveling ladder step, the ladder step connecting rod and the upper telescopic ladder frame forms a parallelogram structure; the ladder frame further comprises an upper leveling pull rod, one end of the upper leveling pull rod is hinged to the rotary extending butt-joint platform, the other end of the upper leveling pull rod is hinged to the fixing portion of the leveling step ladder, and the upper leveling pull rod, the leveling step ladder, the rotary extending butt-joint platform and the hinged point of the upper telescopic ladder frame form a parallelogram structure.

Further, the high altitude rescue car is still including lifting rotation mechanism and lifting platform, lifting platform set up in lifting rotation mechanism's top, lifting platform through set up in lifting system above lifting rotation mechanism lifts.

Furthermore, a lifting installation frame is arranged on the chassis and rotates through the lifting rotation mechanism; the front portion of lifting installation frame is provided with two preceding landing legs, the rear portion of lifting installation frame is provided with two back landing legs, lifting installation frame drives preceding landing leg with back landing leg gyration.

Further, the ladder frame also comprises an upper amplitude-variable ladder frame; the fixing part of the leveling ladder step is hinged with the ladder step connecting rod, the middle part of the stepping part is hinged with the upper amplitude-variable ladder frame, and the hinge joint of the leveling ladder step, the ladder step connecting rod and the upper amplitude-variable ladder frame forms a parallelogram structure; the ladder frame further comprises a lower leveling pull rod and a lower leveling connecting rod, the lower leveling connecting rod is hinged to the middle portion of the treading portion of the leveling ladder step and the fixing portion, one end of the lower leveling pull rod is hinged to the lower leveling connecting rod, the other end of the lower leveling pull rod is hinged to the lifting platform, and the lifting platform, the upper amplitude ladder frame, the lower leveling pull rod and the hinged point of the lower leveling pull rod form a parallelogram structure.

Further, the ladder frame also comprises an upper amplitude-changing oil cylinder for supporting the upper telescopic ladder frame and the upper amplitude-changing ladder frame, one end of the upper amplitude-changing oil cylinder is hinged to the front part of the upper amplitude-changing ladder frame, the other end of the upper amplitude-changing oil cylinder is hinged to the upper part of the lifting platform, and the amplitude-changing angle theta of the upper amplitude-changing ladder frame is 0-40 degrees.

Further, the high-altitude rescue car further comprises a lower telescopic ladder frame, a lower amplitude ladder frame and a lower ladder supporting oil cylinder for supporting the lower telescopic ladder frame and the lower amplitude ladder frame, wherein in a car folding state, the lower ladder supporting oil cylinder is folded to the side face of the lower telescopic ladder frame, the lower telescopic ladder frame is contracted into the lower amplitude ladder frame, and the lower telescopic ladder frame and the lower amplitude ladder frame are accommodated in the lifting platform; when the lifting platform is in use, the lower telescopic ladder frame and the lower amplitude ladder frame extend out of the lifting platform and are in linear connection.

Furthermore, a moving platform and a moving mechanism are arranged in the lifting platform, and the moving platform moves back and forth relative to the lifting platform through the moving mechanism; the rear end of the mobile platform is hinged with a lower variable amplitude oil cylinder, the lower variable amplitude oil cylinder is hinged with the lower variable amplitude ladder frame, and the lower variable amplitude oil cylinder is used for driving the lower variable amplitude ladder frame to move to be horizontal to the mobile platform.

Further, the rotary extension butt-joint platform comprises a leveling platform, a platform rotary mechanism and a rotary platform, wherein the rotary platform is arranged above the leveling platform, the rotary platform rotates left and right through the platform rotary mechanism, and the rotation angle beta of the rotary platform is +/-90 degrees.

Furthermore, an extension butt-joint platform, a platform telescopic mechanism and a platform slide rail are arranged on the rotary platform, the extension butt-joint platform is arranged above the rotary platform, the platform slide rail is arranged between the extension butt-joint platform and the rotary platform, and the extension butt-joint platform can move back and forth through the platform telescopic mechanism.

The embodiment of the utility model provides an in one or more technical scheme, following technological effect or advantage have at least:

1. the embodiment of the utility model provides an in change into with ladder frame articulated leveling ladder step through the fixed step ladder step of tradition, when ladder frame becomes the amplitude motion, butt joint platform levelling mechanism drive leveling ladder step is transferred to the horizontality, and the people steps on more comfortable, safety, makes the people more have the sense of security, increases rescue security, improves rescue efficiency.

2. The embodiment of the utility model provides an in go up telescopic ladder frame, go up become width of cloth ladder frame, lower telescopic ladder frame and become width of cloth ladder frame and be sharp connection when operating condition down, fold to the horizontality when the state of taking up the car, with the integrated shrink of rescue ladder frame of whole rescue car, reduced the occupation space of rescue car, increased the height of lifting of rescue car, further promoted rescue speed.

3. The embodiment of the utility model provides an in preceding landing leg and back landing leg revolve along with the lift installation frame, in the position of picking up the car, alpha be 0 when, preceding landing leg and back landing leg can stretch out support ground, for avoiding interfering with chassis 1's driver's cabin and frame, in 0 to alpha angle within range, preceding landing leg and back landing leg can not stretch out, the lowest position of preceding landing leg shrink is higher than the upper surface of sub vehicle frame, at 360-2 alpha within range, after to the predetermined position, preceding landing leg and back landing leg all can stretch out support ground, guarantee the reliability of support, improve the bearing capacity of lift installation frame.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the high-altitude rescue vehicle of the present invention, wherein the high-altitude rescue vehicle is in a working state;

fig. 2 is a front view of the high-altitude rescue vehicle in the embodiment of the present invention, wherein the high-altitude rescue vehicle is in a vehicle-folding state;

fig. 3 is a top view of the rotary extension docking platform according to an embodiment of the present invention;

fig. 4 is a cross-sectional view of the rescue ladder when the high-altitude rescue vehicle is in a vehicle-collecting state in the embodiment of the utility model;

fig. 5 is a schematic position diagram of a front leg and a rear leg in an embodiment of the present invention;

fig. 6 is a schematic view of the leveling ladder step of the upper telescopic ladder frame in the embodiment of the present invention;

fig. 7 is a schematic view of the leveling step ladder of the upper luffing ladder frame in the embodiment of the present invention.

Description of the reference numerals

1-a chassis; 2-auxiliary frame; 3-front support leg; 4-lifting the mounting frame; 5-lifting the system; 6-rear support leg; 7-auxiliary guiding device for going down stairs; 8-descending support oil cylinders; 9-a step-down telescopic oil cylinder; 10-lower telescopic ladder frame; 1001-lower telescopic ladder step; 11-a lower ladder supporting oil cylinder push rod; 12-a lower luffing ladder frame; 1201-lower amplitude ladder step; 13-lower amplitude cylinder; 14-a mobile platform; 15-a control system; 16-a moving mechanism; 17-lifting the platform; 18-upper luffing ladder frame; 19-mounting a telescopic oil cylinder; 20-an upper amplitude-variable oil cylinder; 21-mounting the telescopic ladder frame; 22-docking platform leveling mechanism; 23-a rotary extension docking platform; 24-a fire monitor system; 25-docking detection means; 26-lifting a slewing mechanism; 27-upper leveling pull rod; 28-leveling ladder rung, 2801-step part, 2802-fixed part; 29-ladder rung linkages; 30-lower leveling pull rod; 31-lower leveling link; 2301-leveling the platform; 2302-a platform swing mechanism; 2303-a rotating platform; 2304-platform slide rail; 2305-platform telescoping mechanism; 2306-extension docking platform.

Detailed Description

Other objects and advantages of the present invention will become apparent from the following explanation of the preferred embodiments of the present invention.

Fig. 1-7 show the schematic structural diagram of the high-altitude rescue vehicle with the automatic leveling step ladder with the rotary extension butt-joint platform provided by the utility model. For convenience of description, the terms "upper", "lower", "left" and "right" are used in the same way as the drawings, but do not limit the structure of the present invention. The arrows in fig. 1 indicate a specific orientation of the front, where the opposite front is the rear.

As shown in fig. 1-7, a high altitude rescue vehicle with a rotary extension docking platform for automatically leveling a ladder step comprises a chassis 1, a ladder frame, a rotary extension docking platform 23 connected to the front end of the ladder frame, and a docking platform leveling mechanism 22, wherein: the ladder frame can perform amplitude variation motion relative to the chassis 1 in the vertical direction; the ladder frame is provided with a ladder step connecting rod 29 and a plurality of leveling ladder steps 28 which are parallel and arranged at intervals along the length direction of the ladder frame, two ends of the leveling ladder steps 28 are hinged to the ladder frame, and the ladder step connecting rod 29 is hinged with the adjacent leveling ladder steps 28; one end of the docking platform leveling mechanism 22 is hinged to the front end of the ladder rack, the other end is hinged to the rotary extending docking platform 23, and the docking platform leveling mechanism 22 is used for driving the leveling ladder step 28 to be adjusted to a horizontal state.

Specifically, the auxiliary frame 2 is fixed on the chassis 1, the cylinder bodies of two upper telescopic cylinders 19 are arranged on the left side and the right side of the lower part of an upper telescopic ladder frame 21, and the piston rods of the upper telescopic cylinders 19 are connected with an upper luffing ladder frame 18; when the high-altitude rescue vehicle is in a working state, the upper telescopic ladder frame 21 is stretched out through the upper telescopic oil cylinder 19, and when the high-altitude rescue vehicle is in a vehicle folding state, the upper amplitude ladder frame 18 is accommodated in the upper telescopic ladder frame 21. The rotary extension butt-joint platform 23 is hinged at the front end of the upper telescopic ladder frame 21, and a fire monitor system 24 is installed in the rotary extension butt-joint platform 23 so as to perform various rescue operations. The docking platform leveling mechanism 22 may be a telescopic structure such as a hydraulic cylinder.

The embodiment of the utility model provides an in change into with ladder frame articulated leveling ladder rung 28 through fixed step ladder of tradition, when ladder frame becomes amplitude motion, butt joint platform levelling mechanism 22 drive leveling ladder rung 28 transfers to the horizontality, and the people steps on more comfortable, safety, makes the people more have the sense of security, increases rescue security, improves rescue efficiency.

In some embodiments, as shown in fig. 1, 2 and 6, the ladder frame includes an upper telescopic ladder frame 21, the leveling rung 28 has a tread 2801 and fixing parts 2802 connected to both sides of the tread 2801, the fixing part 2802 of the leveling rung 28 is hinged to a rung link 29, the middle part of the tread 2801 is hinged to the upper telescopic ladder frame 21, the rung link 29 is hinged to two adjacent sections of the leveling rung 28, the hinge points of the leveling rung 28, the rung link 29 and the upper telescopic ladder frame 21, i.e., C, D, E, F, constitute a parallelogram structure, and the tread 2801 of a plurality of leveling rungs 28 are kept relatively parallel; the ladder frame further comprises an upper leveling pull rod 27, one end of the upper leveling pull rod 27 is hinged with the rotary extending butt-joint platform 23, the other end of the upper leveling pull rod 27 is hinged with a fixing part 2802 of a leveling step ladder 28 positioned at the foremost end of the upper telescopic ladder frame 21, and four points A, B, C, D which are hinged points of the upper leveling pull rod 27, the leveling step ladder 28, the rotary extending butt-joint platform 23 and the upper telescopic ladder frame 21 form a parallelogram structure. Under the driving of the docking platform leveling mechanism 22, the rotary extension docking platform 23 keeps horizontal, and the rotary extension docking platform 23 drives the leveling ladder rung 28 to keep horizontal; the pedal position of the leveling ladder step 28 is a closed plane structure; people can step on the pedal more comfortably and safely. Specifically, the upper telescopic ladder frame 21 is provided with 25 sets of leveling rungs 28.

In some embodiments, as shown in fig. 1 and 2, the high altitude rescue vehicle further comprises a lifting swing mechanism 26 and a lifting platform 17, the lifting platform 17 is disposed above the lifting swing mechanism 26, and the lifting platform 17 is lifted by a lifting system 5 disposed above the lifting swing mechanism 26. The lifting system 5 adopts a mature and reliable scissor type lifting system 5, and a lifting platform 17 is arranged at the upper part of the lifting system 5; the tail of the upper luffing ladder 18 is hinged to the upper rear part of the lifting platform 17. Through the arrangement of the lifting platform 17 and the lifting slewing mechanism 26, the lifting and slewing of the lifting platform 17 can be realized by utilizing the lifting slewing mechanism 26, and the flexibility of rescue ladder frame for implementing rescue is increased.

In some embodiments, as shown in fig. 1 and 5, a lifting and mounting frame 4 is disposed on the chassis 1, and the lifting and mounting frame 4 is rotated by a lifting and rotating mechanism 26; the front part of the lifting and mounting frame 4 is provided with two front legs 3, the rear part of the lifting and mounting frame 4 is provided with two rear legs 6, and the lifting and mounting frame 4 drives the front legs 3 and the rear legs 6 to rotate. Specifically, the lifting system 5 is installed in the lifting installation frame 4, and the lifting installation frame 4 is connected with the auxiliary frame 2 through a lifting rotation mechanism 26, so that the lifting installation frame 4 can rotate to drive the lifting system 5 to rotate the whole ladder frame; front legs 3 are arranged on the left and right of the front portion of the lifting and mounting frame 4, rear legs 6 are arranged on the left and right of the rear portion of the lifting and mounting frame 4, the front legs 3 and the rear legs 6 rotate along with the lifting and mounting frame 4, when the vehicle is in a vehicle folding position, namely alpha is 0 degrees, the front legs 3 and the rear legs 6 can extend out of the supporting ground, in order to avoid interference with a cab and a vehicle frame of the chassis 1, the front legs 3 and the rear legs 6 cannot extend out within the range from 0 degrees to alpha degrees, the lowest position of the front legs 3 in a shrinking mode is higher than the upper surface of the auxiliary frame 2, within the range from 360 degrees to 2 degrees, after the front legs 3 and the rear legs 6 reach the supporting ground after the front legs reach the preset position, the supporting reliability is guaranteed, and.

In some embodiments, as shown in fig. 1 and 7, the ladder frame further includes an upper luffing ladder frame 18, the fixing part 2802 of the leveling rung 28 is hinged to the rung connecting rod 29, the middle part of the rung 2801 is hinged to the upper luffing ladder frame 18, the rung connecting rod 29 is hinged to two adjacent sections of the leveling rung 28, four points H, I, J, K, which are the hinge points of the leveling rung 28, the rung connecting rod 29 and the upper luffing ladder frame 18, form a parallelogram structure, and the rung 2801 of the leveling rung 28 is guaranteed to be relatively horizontal; the ladder frame further comprises a lower leveling pull rod 30 and a lower leveling connecting rod 31, the lower leveling connecting rod 31 is respectively fixed with a treading part 2801 and a fixing part 2802 of a leveling ladder rung 28 positioned at the tail end of the upper amplitude ladder frame 18 into a whole through two hinge points, namely point I and point J, one end of the lower leveling pull rod 30 is hinged with the lower leveling connecting rod 31, the other end of the lower leveling pull rod 30 is hinged with the lifting platform 17, and the hinge points, namely J, K, L, M, of the lifting platform 17, the upper amplitude ladder frame 18, the lower leveling pull rod 30 and the lower leveling pull rod 30 form a parallelogram structure. When the upper amplitude ladder frame 18 is horizontal to the lifting platform 17, the leveling ladder step 28 is horizontal to the lifting platform 17, and the leveling ladder step 28 is driven to be horizontal to the lifting platform 17 while the upper amplitude ladder frame 18 is amplitude-changed; the stepping position of the leveling rung 28, i.e., the stepping portion 2801, is a closed planar structure; people can step on the pedal more comfortably and safely. 33 groups of leveling rungs 28 are uniformly arranged on the upper amplitude ladder frame 18, when the upper amplitude ladder frame 18 is horizontal, the leveling rungs 28 are horizontal, and when the upper amplitude ladder frame 18 is amplitude-variable, the leveling rungs 28 are driven to be horizontal.

In some embodiments, as shown in fig. 1 and 2, the ladder frame further comprises an upper luffing cylinder 20 for supporting the upper telescopic ladder frame 21 and the upper luffing ladder frame 18, the upper luffing cylinder 20 being hinged at one end to the front of the upper luffing ladder frame 18 and at the other end to the upper part of the lifting platform 17, the luffing angle θ of the upper luffing ladder frame 18 being 0 ° to 40 °. Specifically, the upper luffing cylinders 20 comprise two upper luffing cylinders 20, the cylinder bodies of the two upper luffing cylinders 20 are hinged to the middle position of the upper parts of the two sides of the lifting platform 17, and the piston rods of the upper luffing cylinders 20 are hinged to the front part of the upper luffing ladder frame 18. The rescue site needs the variation angle theta of the upper amplitude ladder frame 18 to change, the theta angle is preferably 30 degrees in the embodiment, the amplitude angle is smaller in the high altitude state, and people walk on the theta angle more safely.

In some embodiments, as shown in fig. 1, 2 and 4, the high-altitude rescue vehicle further comprises a lower telescopic ladder frame 10 and a lower luffing ladder frame 12, and a lower ladder support cylinder 8 for supporting the lower telescopic ladder frame 10 and the lower luffing ladder frame 12, wherein in a vehicle folding state, the lower ladder support cylinder 8 is folded to the side of the lower telescopic ladder frame 10, the lower telescopic ladder frame 10 is retracted into the lower luffing ladder frame 12, and the lower telescopic ladder frame 10 and the lower luffing ladder frame 12 are accommodated in the lifting platform 17; in a use state, the lower telescopic ladder frame 10 and the lower luffing ladder frame 12 extend out of the lifting platform 17, and the lower telescopic ladder frame 10 and the lower luffing ladder frame 12 are linearly connected. Specifically, the left side and the right side of the lower part of the lower luffing ladder frame 12 are connected with two lower ladder telescopic oil cylinders 9, the cylinder bodies of the two lower ladder telescopic oil cylinders 9 are installed on the left side and the right side of the lower part of the lower luffing ladder frame 12, the piston rods of the lower ladder telescopic oil cylinders 9 are connected with the lower telescopic ladder frame 10, the lower telescopic ladder frame 10 is extended out through the lower ladder telescopic oil cylinders 9 in the working state of the high-altitude rescue vehicle, and the lower telescopic ladder frame 10 is accommodated in the lower luffing ladder frame 12 in the vehicle folding state; the lower ladder support oil cylinder 8 and the lower ladder support oil cylinder push rod 11 are arranged on two sides of the lower telescopic ladder frame 10, the lower ladder support oil cylinder push rod 11 drives the lower ladder support oil cylinder 8 to rotate to a proper position, and the lower ladder support oil cylinder 8 is reliably supported on the ground, so that the bearing capacity of the lower telescopic ladder frame 10 is improved; when the vehicle is retracted, the lower ladder support oil cylinder push rod 11 drives the lower ladder support oil cylinder 8 to the side surface of the lower telescopic ladder frame 10, and the lower ladder telescopic oil cylinder 9 drives the lower telescopic ladder frame 10 to retract into the lower telescopic ladder frame 12. Go up telescopic ladder frame 21, go up variable amplitude ladder frame 18, lower telescopic ladder frame 10 and become variable amplitude ladder frame 12 and be sharp connection when operating condition, fold to the horizontality when the state of taking up the car, with the integrated shrink of the rescue ladder of whole rescue car, reduced the occupation space of rescue car, increased the height of lifting of rescue car, further promoted rescue speed.

In some embodiments, as shown in fig. 1, 2 and 4, the moving platform 14 and the moving mechanism 16 are disposed in the lifting platform 17, and the moving platform 14 moves back and forth relative to the lifting platform 17 through the moving mechanism 16; the outer end of the mobile platform 14 is hinged with a lower variable amplitude oil cylinder 13, the lower variable amplitude oil cylinder 13 is hinged with the lower variable amplitude ladder frame 12, and the lower variable amplitude oil cylinder 13 is used for driving the lower variable amplitude ladder frame 12 to move to be horizontal to the mobile platform 14. Specifically, the lower luffing ladder frame 12 is hinged with the outer end of the mobile platform 14, the lower luffing oil cylinder 13 drives the lower luffing ladder frame 12 to a horizontal position, and the mobile mechanism 16 drives the mobile platform 14 to move back and forth in the lifting platform 17 to drive the lower luffing ladder frame 12 to move into the lifting platform 17 or extend out of the lifting platform 17; the rear part of the lifting and mounting frame 4 is provided with an auxiliary guiding device 7 for descending stairs, which plays a role of auxiliary guiding and supporting in the moving process of the lower amplitude ladder frame 12.

In some embodiments, as shown in fig. 1, a plurality of parallel and spaced lower telescoping rungs 1001 are provided on the lower telescoping ladder 10, a plurality of parallel and spaced lower telescoping rungs 1201 are provided in the lower telescoping ladder 12, and both the

lower telescoping rungs

1001 and 1201 are fixed step rungs. The pedal position of people is confined planar structure, and area of contact is big, does not have unsettled sensation, and people's comfort and sense of security all improve, and step ladder rung bearing capacity is strong, and every step ladder rung all can bear simultaneously, and the rescue number greatly increased once has improved rescue efficiency. On the premise of ensuring the working height, the amplitude angle of the lower amplitude ladder frame 12 is preferably 35-40 degrees, and in the angle range, the step ladder step is approximately parallel to the ground, so that the comfort and the safety of people are improved.

In some embodiments, as shown in fig. 1 and 3, the rotary extension docking platform 23 comprises a leveling platform 2301, a platform turning mechanism 2302 and a rotary platform 2303, the rotary platform 2303 is disposed above the leveling platform 2301, and the rotary platform 2303 is rotated left and right by the platform turning mechanism 2302 by an angle β of ± 90 °.

In some embodiments, as shown in fig. 1 and 3, an extension docking platform 2306, a platform telescopic mechanism 2305 and a platform slide rail 2304 are disposed on the rotary platform 2303, the extension docking platform 2306 is disposed above the rotary platform 2303, the platform slide rail 2304 is disposed between the extension docking platform 2306 and the rotary platform 2303, and the extension docking platform 2306 is extended and retracted back and forth through the platform telescopic mechanism 2305 and the platform slide rail 2304; the fire monitor system 24 is mounted on the extended docking platform 2306. Through the arrangement of the platform swing mechanism 2302 and the platform telescopic mechanism 2305, the extension butt joint platform 2306 is driven to rotate left and right and move back and forth in a telescopic mode, the extension range of the rotary extension butt joint platform 23 is relatively increased, the flexibility of field rescue is increased, and the rescue range and the rescue efficiency are improved.

In some embodiments, the front end of the chassis 1 is provided with a docking detection device 25, the lifting platform 17 is provided with a control system 15, and the docking detection device 25 may adopt a sensor such as a laser range finder; after the rescue place is reached, the butt joint detection device 25 measures the vertical height, the horizontal distance and the butt joint angle of the target position, the control system 15 controls the action parameters of all devices of the whole machine, and the ladder frame is rapidly unfolded to implement rescue.

It should be noted that, the setting of the fire fighting system, the hydraulic system, the electric control system and the accessory equipment required in the embodiment of the present invention is easy to be realized by those skilled in the art, and the detailed structure is not described herein.

The utility model relates to a theory of operation of embodiment is: the lifting slewing mechanism 26 drives the whole rescue ladder and the lifting platform 17 to rotate left and right, and stops after slewing to a specified direction, and the front supporting legs 3 and the rear supporting legs 6 extend out of the supporting ground; the lower telescopic ladder frame 10 and the lower variable-amplitude ladder frame 12 extend out of the lifting platform 17, the lower ladder support oil cylinder push rod 11 drives the lower ladder support oil cylinder 8 to rotate to a proper position, and the lower ladder support oil cylinder 8 is reliably supported on the ground; the lifting platform 17 is lifted by the lifting system 5, and after reaching a designated position, the upper amplitude ladder frame 18 starts to move upwards in amplitude to a certain angle, and the upper telescopic ladder frame 21 works and extends upwards. The docking platform leveling mechanism 22 drives the rotary extension docking platform 23 to keep horizontal with the lifting platform 17, and the rotary extension docking platform 23 drives the leveling ladder step 28 to keep horizontal with the lifting platform 17. The platform swing mechanism 2302 drives the swing platform 2303 to move left and right, and the platform telescopic mechanism 2305 drives the extension butt joint platform 2306 to stretch to the rescue position to realize rescue operation.

The high altitude rescue vehicle with automatic leveling of the ladder rung with the revolving extension docking platform of the present invention has been described in detail with reference to the preferred embodiments of the present invention, however, it should be noted that those skilled in the art may make any alterations, modifications and changes on the basis of the above disclosure without departing from the spirit of the present invention. The present invention includes the above-described embodiments and any equivalents thereof.

Claims

1. The high-altitude rescue vehicle with the function of automatically leveling the ladder step with the rotary extension butt-joint platform is characterized by comprising a chassis (1), a ladder frame, a rotary extension butt-joint platform (23) connected to the front end of the ladder frame and a butt-joint platform leveling mechanism (22), wherein:

the ladder frame can perform amplitude variation motion in the vertical direction relative to the chassis (1);

the ladder frame is provided with a ladder step connecting rod (29) and a plurality of leveling ladder steps (28) which are parallel to each other and arranged at intervals along the length direction of the ladder frame, the leveling ladder steps (28) are hinged to the ladder frame (18), and the ladder step connecting rod (29) is hinged to the adjacent leveling ladder steps (28);

one end of the butt joint platform leveling mechanism (22) is hinged to the front end of the ladder frame, the other end of the butt joint platform leveling mechanism is hinged to the rotary extending butt joint platform (23), and the butt joint platform leveling mechanism (22) is used for driving the leveling ladder step (28) to be adjusted to be in a horizontal state.

2. High altitude rescue vehicle with automatic levelling of the rungs of the articulated extension docking platform according to claim 1, characterized in that the ladder frame comprises an upper telescopic ladder frame (21); the leveling ladder step (28) is provided with a stepping part (2801) and fixing parts (2802) connected to two sides of the stepping part (2801), the fixing part (2802) of the leveling ladder step (28) is hinged with the ladder step connecting rod (29), the middle part of the stepping part (2801) is hinged with an upper telescopic ladder frame (21), and hinged points of the leveling ladder step (28), the ladder step connecting rod (29) and the upper telescopic ladder frame (21) form a parallelogram structure; the ladder frame further comprises an upper leveling pull rod (27), one end of the upper leveling pull rod (27) is hinged to the rotary extension butt-joint platform (23), the other end of the upper leveling pull rod is hinged to a fixing portion (2802) of the leveling ladder step (28), the upper leveling pull rod (27) is connected to the leveling ladder step (28), the rotary extension butt-joint platform (23) and a hinge point of the upper telescopic ladder frame (21) form a parallelogram structure.

3. The high altitude rescue vehicle with automatic leveling of the ladder rung with the swivel extension docking platform as claimed in claim 2, characterized in that the high altitude rescue vehicle further comprises a lifting swivel mechanism (26) and a lifting platform (17), the lifting platform (17) being arranged above the lifting swivel mechanism (26), the lifting platform (17) being lifted by a lifting system (5) arranged above the lifting swivel mechanism (26).

4. The stair step self-leveling high altitude rescue vehicle with slewing extension docking platform according to claim 3, characterized in that a lifting installation frame (4) is arranged on the chassis (1), the lifting installation frame (4) is slewing through the lifting slewing mechanism (26); the front portion of lifting installation frame (4) is provided with two preceding landing legs (3), the rear portion of lifting installation frame (4) is provided with two back landing legs (6), lifting installation frame (4) drive preceding landing leg (3) with back landing leg (6) gyration.

5. The high altitude rescue vehicle with automatic leveling of the rung with the articulated extension docking platform of claim 3, wherein the ladder rack further comprises an upper luffing ladder rack (18); the fixing part (2802) of the leveling stair step (28) is hinged with the stair step connecting rod (29), the middle part of the treading part (2801) is hinged with the upper amplitude-variable ladder frame (18), and the hinged points of the leveling stair step (28), the stair step connecting rod (29) and the upper amplitude-variable ladder frame (18) form a parallelogram structure; the ladder frame still includes leveling pull rod (30) down and leveling connecting rod (31) down, down leveling connecting rod (31) respectively with the middle part and fixed part (2802) of trampling portion (2801) of leveling ladder step (28) are articulated, down the one end of leveling pull rod (30) with down leveling connecting rod (31) articulated, the other end with it is articulated to lift platform (17), lift platform (17) go up amplitude ladder frame (18) leveling pull rod (30) down with the pin joint of leveling pull rod (30) down constitutes the parallelogram structure.

6. The high altitude rescue vehicle with automatic leveling of the ladder step of the rotary extension butt-joint platform as claimed in claim 5, wherein the ladder frame further comprises an upper luffing cylinder (20) for supporting the upper telescopic ladder frame (21) and the upper luffing ladder frame (18), one end of the upper luffing cylinder (20) is hinged to the front part of the upper luffing ladder frame (18), the other end is hinged to the upper part of the lifting platform (17), and the luffing angle θ of the upper luffing ladder frame (18) is 0-40 °.

7. The high-altitude rescue vehicle with the automatic leveling of the ladder rung of the rotary extension docking platform as recited in claim 3, further comprising a lower telescopic ladder frame (10) and a lower luffing ladder frame (12) and a lower ladder support cylinder (8) for supporting the two, wherein in the vehicle folding state, the lower ladder support cylinder (8) is folded to the side of the lower telescopic ladder frame (10), the lower telescopic ladder frame (10) is retracted into the lower luffing ladder frame (12), and the lower telescopic ladder frame (10) and the lower luffing ladder frame (12) are accommodated in the lifting platform (17); when the lifting platform is in use, the lower telescopic ladder frame (10) and the lower variable amplitude ladder frame (12) extend out of the lifting platform (17), and the lower telescopic ladder frame (10) and the lower variable amplitude ladder frame (12) are connected in a straight line.

8. The stair step self-leveling high altitude rescue vehicle with slewing extended docking platform according to claim 7, characterized in that a moving platform (14) and a moving mechanism (16) are arranged in the lifting platform (17), the moving platform (14) is moved back and forth relative to the lifting platform (17) by the moving mechanism (16); the rear end of the movable platform (14) is hinged with a lower amplitude cylinder (13), the lower amplitude cylinder (13) is hinged with the lower amplitude ladder frame (12), and the lower amplitude cylinder (13) is used for driving the lower amplitude ladder frame (12) to move to be horizontal to the movable platform (14).

9. The stair step self-leveling high altitude rescue vehicle with swivel extension docking platform according to claim 1, characterized in that the swivel extension docking platform (23) comprises a leveling platform (2301), a platform swing mechanism (2302) and a swivel platform (2303), the swivel platform (2303) is disposed above the leveling platform (2301), the swivel platform (2303) is rotated left and right through the platform swing mechanism (2302) with a rotation angle β of ± 90 °.

10. The stair step self-leveling high altitude rescue vehicle with a rotary extension docking platform according to claim 9, wherein an extension docking platform (2306), a platform telescoping mechanism (2305) and a platform sliding rail (2304) are arranged on the rotary platform (2303), the extension docking platform (2306) is arranged above the rotary platform (2303), the platform sliding rail (2304) is arranged between the extension docking platform (2306) and the rotary platform (2303), and the extension docking platform (2306) is moved back and forth through the platform telescoping mechanism (2305).