CN212797375U

CN212797375U - Passenger boarding car

Info

Publication number: CN212797375U
Application number: CN202021780148.9U
Authority: CN
Inventors: 刘均海; 宋桂香; 丁进; 韩云武; 付振山
Original assignee: Shandong Jiaotong University
Current assignee: Shandong Jiaotong University
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2021-03-26
Anticipated expiration: 2030-08-24

Abstract

The utility model discloses a passenger boarding car, which comprises a car body, a boarding platform, a car door system, a monitoring device and a lifting mechanism; the boarding platform is arranged at the front end of the car body, the monitoring device is arranged at the top of the car body, and the lifting mechanism is arranged on the side part of the car body; the boarding platform comprises a fixed platform and a movable platform and can be folded, unfolded and stretched. The car device can be in seamless butt joint with the cabin through an accurate design structure, and boarding safety is improved.

Description

Passenger boarding car

Technical Field

The utility model relates to a passenger car of boarding realizes the airport and removes intelligent management of boarding.

Background

The passenger boarding ladder is a mobile airport special device for passengers to get on and off the airplane, after the airplane arrives at the airport, the boarding car approaches the airplane, and the boarding ladder is in butt joint with the position of an airplane cabin door safely and slowly so as to provide the passengers with boarding and disembarking services. The boarding ladder is mainly provided with fixed ladder steps, because the passengers are more and the passages in the cabin are narrow, the passengers are easy to jam at the cabin door side of the cabin, and the ladder steps are also gathered with a plurality of people, so that the people are crowded, and a plurality of unsafe factors are easily formed, and particularly, the boarding or disembarking of old, weak, sick, disabled and pregnant passengers is inconvenient. Moreover, the movable doors on the two sides of the platform at the upper part of the airstairs are pushed and pulled manually, so that the airstairs are laborious and inconvenient to use, easy to clamp and hurt and have potential safety hazards when being butted with an airplane.

A special passenger boarding ladder is prepared for smooth boarding of passengers with inconvenient actions, and comprises movable cages connected through a lifting mechanism. The lift car is lifted by the lifting mechanism, the boarding platform is arranged at the front end of the lift car, and passengers can board the airplane smoothly through the boarding platform. The existing car structure is unreasonable in design, so that the seamless connection of the airplane cannot be easily caused when the platform extends to the maximum limit, or the airplane cannot be completely connected in place when the platform contracts; and the intelligent control function is poor, the butt joint point with the airplane cannot be accurately grasped, and the method is very unsafe.

Disclosure of Invention

The utility model discloses concentrate on in solving at least one problem among the above-mentioned prior art, the utility model provides a passenger's car of boarding, reasonable structural design has avoided the interference, remove the boarding platform and combine together to save the space and increased the length of boarding again with fixed boarding platform, and show the butt-joint relation of car device and aircraft hatch door in real time through three-dimensional scanning device, the automatic butt-joint function of boarding platform has been improved, the platform is received and can be regarded as the door and use, the passenger's sense of security when double door protection has improved the butt-joint aircraft, adopt vertical elevator formula operating system, the travelling comfort that the passenger was boarded has effectively been improved, for old, weak, sick, disabled, pregnant passenger provides convenience.

The utility model discloses the technical scheme who adopts as follows: a passenger boarding car comprises a car body, a boarding platform, a car door system, a monitoring device and a lifting mechanism;

the boarding platform is installed at the front end of the car body, the monitoring device is installed at the top of the car body, and the lifting mechanism is installed on the side part of the car body;

the boarding platform comprises a fixed platform and a moving platform, the fixed platform is drawn by an electric cylinder, a cylinder body of the electric cylinder is pivoted on the side wall of the car body through a hinge, the front end of a push rod of the electric cylinder is pivoted with a first connecting rod and a second connecting rod through the hinge, the other end of the first connecting rod is pivoted on the fixed platform through the hinge, and the other end of the second connecting rod is pivoted on the side wall of the car body through the hinge;

the moving platform is connected with the fixed platform in a sliding mode in parallel through a driving device.

Further: the boarding platform and the car door system are arranged on the same side.

Further: and the fixed platform and the movable platform are both provided with side guard plates.

Further: the car door system is provided with a motor-driven bidirectional screw rod, and the bidirectional screw rod is connected with two oppositely-opened car doors.

Further: the hinge adopts a pivot shaft.

Further: the driving device structure is as follows: the servo motor is arranged on the fixed platform and drives the connecting lead screw, the lead screw is sleeved with a sliding table, and the sliding table is arranged at the bottom of the movable platform.

Further: the monitoring device adopts a laser three-dimensional scanner and is arranged at the position of the car opposite to the aircraft hatch.

Compared with the prior art, the beneficial effects of the utility model are embodied in: the utility model discloses the car, it is rational in infrastructure, through setting up portable and fixed boarding platform that combines together, can random adjustment stretch out length, boarding platform still can change between horizontality and vertical state, can do boarding platform, also can do the door, has effectively improved the security of boarding. The bidirectional screw driving device is arranged to control the car door to open or close the car door, so that the problem that the conventional elevator car device is not suitable for moving airstairs in airports is solved. The positions of the car and the airplane cabin can be controlled in real time by arranging the monitoring device. The lift car can effectively improve the boarding comfort of passengers, provides convenience for old, weak, sick, disabled and pregnant passengers, and solves the problem that the boarding of the passengers cannot provide convenience for the old, weak, sick, disabled and pregnant passengers at present.

Drawings

The drawings are only for purposes of illustrating particular embodiments and are not to be construed as limiting the invention.

Fig. 1a to 1c are a front view, a plan view, and a left side view of the boarding platform in an inclined state;

fig. 2a to 2c are a front view, a top view and a left view of the boarding platform in a vertical state;

fig. 3a to 3c are a front view, a plan view, and a left side view of the boarding platform in a horizontal state;

fig. 4 is a diagram showing the relationship between the respective related dimensions of the car device.

Detailed Description

The invention will be described in detail with reference to the drawings, which form a part hereof, and with reference to the embodiments, which are used to explain the invention. However, it should be understood by those skilled in the art that the following examples are not intended to limit the technical solutions of the present invention, and all equivalent changes or modifications made in the spirit of the technical solutions of the present invention should be considered as falling within the protection scope of the present invention.

As shown in fig. 1a to 1c, the passenger boarding car device of the present invention includes five parts, a car body 1, a boarding platform 2, a car door system 3, a monitoring device 4, and an elevating mechanism 5.

The height in the carriage of the car body 1 is equal to the height of a person and the space is comfortable, the height of the person can reach 2m or even about 2.2mm at present, the height of the space is approximately 200mm, and therefore the height in the carriage is 2200 mm-2400 mm most reasonably.

The boarding platform 2 and the car door system 3 are installed at the front door end of the car body 1, and the monitoring device 4 and the elevating mechanism 5 are installed at the top or side of the car body 1. The boarding platform 2 is used for being connected with an airplane when passengers board, the monitoring device 4 is used for monitoring the butt joint position of a lift car and an airplane hatch, and the lifting mechanism 5 is used for drawing the lift car device to move up and down on the boarding ladder guide rail frame.

Because the boarding platform 2 is only used when being butted with an airplane, in order to avoid the overlarge occupied area of the boarding platform 2 and the collision interference with other objects in the transportation process, the boarding platform 2 is designed to be foldable, and can be folded when not used, unfolded when being butted with the airplane and used as a door when being folded; simultaneously, in order to with the aircraft seamless joint as far as possible, the utility model discloses but still with boarding platform 2 design contraction type, through the distance of flexible adjustment and cabin.

Therefore, the boarding platform 2 includes two parts, a fixed platform 21 and a moving platform 22, the fixed platform 21 is mounted on the car body 1, is connected to the side bottom of the car body through a hinge a, and is pulled by the electric cylinder 23 to pivot around the hinge a under the traction of the electric cylinder 23. In order to avoid the movement dead point, the cylinder body of the electric cylinder 23 is connected to the side wall of the car body through a hinge C, the front end of the push rod of the electric cylinder 23 is connected with a first connecting rod 24 through a hinge E, the first connecting rod 24 is connected to the fixed platform 21 through a hinge B, and the angle is changed through the cooperation of a plurality of hinge points, so that the fixed platform 21 can rotate and unfold smoothly. Further, the front end of the push rod of the electric cylinder 23 is connected with a first connecting rod 24 through a hinge E, and is also connected with a second connecting rod 25, and the other end of the second connecting rod 25 is connected with the side wall of the car body through a hinge D.

The movable platform 22 is slidably connected to the fixed platform 21 by a driving device 26. The structure of the driving device can be that a servo motor drives a screw rod, a sliding table is sleeved on the screw rod and is installed at the bottom of the movable platform 22, the screw rod is driven to rotate through the servo motor, the sliding table is driven to slide on the screw rod, the movable platform 22 can move back and forth above the screw rod, the driving device is installed on the fixed platform 21, the movable platform 22 can move linearly on the fixed platform 21 through the driving device, the servo motor receives instructions to drive the screw rod to rotate, the sliding table is indirectly moved, and the movable platform is driven to reach an accurate position.

Further, both the fixed platform 21 and the moving platform 22 are provided with side guards.

The hinge joints can adopt a pivot shaft mode, so that both hinged parts can rotate around a shaft.

For the car door system 3, a conventional elevator door system can be adopted, a lead screw power device drives a bidirectional lead screw, the bidirectional lead screw is connected with two oppositely-opened car doors, and the two car doors are synchronously close to or away from each other through rotation of the bidirectional lead screw, so that the purpose of opening and closing the doors is achieved.

For the monitoring device 4, a laser three-dimensional scanner may be employed, which can scan the relative position of the car and the aircraft hatch in all directions.

The lifting mechanism 5 can be a gear rack power mechanism, or a chain wheel and chain power mechanism, and is installed in a matching way with the guide rail frame and moves up and down on the guide rail frame.

Boarding platform mechanism 2 is the utility model discloses a key device, to the utility model discloses a if boarding platform mechanism 2 each spare part size design is unreasonable, and the mounted position design is unreasonable, and the lectotype is unreasonable etc. will cause and bear the weight of the shakiness, and the platform stretches out not in place, withdraws not in place scheduling problem, so rational design boarding platform mechanism 2 is the key. As shown in fig. 4, let:

l1: the horizontal distance between the hinge A and the hinge B and the vertical distance between the hinge A and the hinge C;

l2: the vertical distance between the hinge A and the hinge B;

l3: the horizontal distance between the hinge A and the hinge D;

l4: the vertical distance between the hinge A and the hinge D;

l5: the length of the second pull rod;

l6: the length of the first pull rod;

l7: minimum length of electric cylinder

L8: the horizontal distance between hinge A and hinge C;

l9: fixing the length of the platform;

l10: the length of the mobile platform;

l11: the mobile platform compensates the adjusting distance when the cabin door of the airplane moves up and down by the distance h;

l12: the extension length of a push rod of the electric cylinder;

l13: moving the moving platform out for a distance when the cabin door of the airplane is butted;

h: the height in the car body compartment;

c: depth in the car body compartment;

h: finely adjusting the height of the boarding platform when the cabin door of the airplane is butted;

and (2) symbol A: when the boarding platform rotates to the horizontal position, the included angle between the second connecting rod and the hinge D in the vertical direction is formed;

and B: when the boarding platform rotates to a vertical position, the included angle between the second connecting rod and the hinge D in the vertical direction is formed;

h < alpha >: the included angle between the moving platform and the horizontal direction caused by the moving platform moving out of the distance L13;

and (2) h: and the second connecting rod forms an angle with the vertical direction after the moving platform moves out of the distance L13.

Assuming that the position of the hinge A is (0, 0), the hinge B is (L1, L2), the hinge C is (L8, L1), and the hinge D is (L3, L4).

The height H in the cage main body is equal to the height of a person plus the comfortable height of the space, the height of the person is larger than 2000mm at present and can even reach about 2200mm, the height of the comfortable space is about 200mm, and therefore the height in the cage is the most reasonable between 2200mm and 2400 mm.

When the boarding platform rotates to the horizontal position around the hinge A, the boarding platform is connected by the hinge A and the hinge B, the weight of the boarding platform and the weight of a person staying on the platform during boarding are all borne by the hinge A and the hinge B, and particularly when the mobile platform extends out of the boarding platform, the hinge A and the hinge B not only bear the force action, but also bear the moment generated by the mobile platform. The longer the length of the horizontal position L1 of the hinge B, the better. However, L1, L2, L3 and L4 are associated with L5, L6, L7, L8, the length of L7 in turn being associated with the length of the pusher. The following relationship is obtained according to the weight of each association length:

the length L5 of the first link is determined by equation (5):

the length L6 of the second connecting rod is determined by the formula (6):

the included angle between the second connecting rod and the hinge D in the vertical direction is ^ A when the boarding platform is horizontal, and the included angle between the second connecting rod and the hinge D in the vertical direction is ^ B when the boarding platform is vertical, which is determined by the parameters of A (0, 0), B (L1, L2), C (L8, L1) and D (L3, L4), and the relationship of the two parameters accords with the formulas (7) and (8).

The shortest length L7 of the electric cylinder is determined by parameters of a (0, 0), B (L1, L2), C (L8, L1), D (L3, L4), and the relationship thereof conforms to formula (9).

In actual production, the length of the L7 can be referred to by the electric cylinder selection parameter, and then the length of the L8 is compensated according to the electric cylinder selection parameter.

The vertical distance between the hinge A and the hinge C is also designed to be L1, because the boarding platform device can drive the moving platform device to rotate around the hinge A to the vertical position to close the car, and the electric cylinder is less stressed when the boarding platform device plays a role of a car door. The horizontal position L8 of the hinge C corresponds to formula (10):

L8＝floor((L2+L6+L7)/10)×10 (10)

the depth C of the car is restricted by L8, and in order to ensure that the position of the hinge C is provided on the frame of the car wall, equation (11) needs to be satisfied:

C＝L8+H/25 (11)

generally, when C is larger than 2000mm, a patient lying on a bed can be carried. Few boarding vehicles are currently available to achieve this function.

And when the boarding platform mechanism drives the moving platform to rotate to a vertical position around the hinge A, the lift car is closed. The fixed and mobile platforms assume the role of car door in vertical position. Meanwhile, when the fixed platform and the mobile platform are in horizontal positions, the fixed platform and the mobile platform play a role in butting against the cabin door of the airplane. The fixed platform length L9 and the moving platform length L10 are thus correlated to the height H of the car and the height L4 of the hinge D.

L9＝L4+H/50 (12)

L10＝H-L9+H/4 (13)

Therefore, the height of the lift car and the type selection of the electric cylinder are determined, the positions of the hinge A, the hinge B, the hinge C and the hinge D are determined through formulas (1) to (13), the lengths of the first connecting rod and the second connecting rod are determined, and the lengths of the electric cylinder and other key dimensions are determined. In addition, the force applied to the first connecting rod is shared by the second connecting rod and the electric cylinder. When the boarding platform is in a horizontal state and a vertical state, the push rod is not stressed, namely, the electric cylinder only acts in the rotation process of the boarding platform, so that the service life of the electric cylinder can be effectively prolonged.

After passengers board and load certain goods, the total weight of the airplane changes, so that the cabin door of the airplane has a certain up-down moving distance h, namely the boarding platform finely adjusts the height when the cabin door of the airplane is butted. According to practical experience, when the car is butted with the airplane door, the boarding platform in the horizontal position is moved to the lowest position which can be reached by the airplane door, and the moving distance of the moving platform is L13. And then the length L12 of the electric cylinder and the moving distance L13+ L11 of the moving platform are adjusted to a proper position for adjustment and compensation, wherein L11 is the fine adjustment distance when the moving platform compensates the up-and-down movement distance h of the airplane door. Because alpha angle changes with h, alpha angle changes cause beta angle changes, so the method has the following steps:

ɑ＝arctan(h/(L9+L13)) (14)

ɑ1＝arctan(L2/L1) (15)

due to the fact that

The use process of the car is as follows:

step 1: in the process of butting the car device with the airplane cabin door, the movable boarding ladder firstly conveys the car device to a preset position, the appearance of the airplane cabin door is scanned by the laser three-dimensional scanning device, and the space position of the airplane cabin door and the car device is judged.

Step 2: the boarding platform rotates to a horizontal state around the axis of the hinge A from a vertical state, and the moving-out distance L13 of the moving platform when the airplane cabin door is butted is calculated according to the space position of the airplane cabin door and the car device.

And step 3: and adjusting and compensating the vertical position difference through the adjusting distance L11 of the mobile platform and the extension length L12 of the electric cylinder according to the vertical positions of the airplane door and the mobile platform.

And 4, step 4: the car door is opened by a car door system, passengers enter the airplane cabin from the car, and then the car door is closed.

And 5: after boarding of passengers is finished, the movable platform is firstly withdrawn, then the fixed platform is rotated to the vertical position, and the boarding platform is withdrawn.

Claims

1. A passenger boarding car, characterized in that: the boarding platform comprises a car body, a boarding platform, a car door system, a monitoring device and a lifting mechanism;

2. A passenger boarding car according to claim 1, characterized in that: the boarding platform and the car door system are arranged on the same side.

3. A passenger boarding car according to claim 1, characterized in that: and the fixed platform and the movable platform are both provided with side guard plates.

4. A passenger boarding car according to claim 1, characterized in that: the car door system is provided with a motor-driven bidirectional screw rod, and the bidirectional screw rod is connected with two oppositely-opened car doors.

5. A passenger boarding car according to claim 1, characterized in that: the hinge adopts a pivot shaft.

6. A passenger boarding car according to claim 1, characterized in that: the driving device structure is as follows: the servo motor is arranged on the fixed platform and drives the connecting lead screw, the lead screw is sleeved with a sliding table, and the sliding table is arranged at the bottom of the movable platform.

7. A passenger boarding car according to claim 1, characterized in that: the monitoring device adopts a laser three-dimensional scanner and is arranged at the position of the car opposite to the aircraft hatch.