Boarding vehicle

Abstract

The utility model relates to the technical field of boarding equipment, in particular to a boarding car which comprises a chassis, a cab, a compartment and a front platform, the chassis is provided with a first lifting device, the cab is located on the chassis, and the compartment is installed on the first lifting device so as to ascend or descend relative to the chassis; the compartment body is provided with a second lifting device, the second lifting device is located at the front end of the cab, the front platform is installed on the second lifting device, and the second lifting device is configured to drive the front platform to descend to the position below a top plate of the cab and further configured to drive the front platform to be communicated with the compartment body. The second lifting device can drive the front platform to ascend or descend so as to adjust the service height of the front platform, and the second lifting device can drive the front platform to descend to the position below the top plate of the cab, so that the service height can be lowered to the position below the top plate of the cab; when the second lifting device drives the front platform to communicate with the compartment body, passengers can enter the compartment body from the front platform.

Description

Technical Field

[0001] The present application relates to the technical field of boarding equipment, and in particular to a boarding vehicle. Background Art

[0002] A boarding car is a special vehicle that provides services for passengers who have limited mobility due to physical defects or poor health conditions to board and disembark from the aircraft.

[0003] In the related technology, the boarding car mainly includes a commercial chassis, a cab, a lifting system, a car body, and a front platform and a rear lifting platform located at the front and rear ends of the car body. The overall length is relatively long, and the front platform is fixedly installed on the car body and located above the cab. Passengers enter the car body through the rear lifting platform, and there are special fixing devices for wheelchairs and stretchers in the car body. When the boarding car successfully docks with the aircraft, the passenger enters the aircraft from the front platform.

[0004] Affected by the height of the cockpit, when docking with a small aircraft with a lower door height, the boarding vehicle cannot meet the use requirements of the small aircraft. Utility Model Content

[0005] The object of the present application is to provide a boarding vehicle to lower the service height of the front platform.

[0006] Based on the above-mentioned purpose, the present application provides a boarding vehicle, including a chassis, a cab, a body and a front platform, the chassis is provided with a first lifting device, the cab is located on the chassis, and the body is installed on the first lifting device to rise or descend relative to the chassis; the body is provided with a second lifting device, the second lifting device is located at the front end of the cab, and the front platform is installed on the second lifting device, the second lifting device is configured to drive the front platform to descend below the top plate of the cab, and the second lifting device is also configured to drive the front platform to communicate with the body.

[0007] In one embodiment of the present application, the cab is installed inside the compartment, and a side wall of the compartment is provided with a perspective window.

[0008] In one embodiment of the present application, the cab is installed on the chassis to drive the chassis to operate or brake; the body cover is arranged on the outside of the cab, and the body is provided with a transparent window corresponding to the side wall of the cab.

[0009] In one embodiment of the present application, the front platform includes a fixed platform and a telescopic platform, the fixed platform is connected to the second lifting device, the width of the fixed platform is equal to the width of the compartment, and the telescopic platform can move relative to the fixed platform to dock with the aircraft cabin door.

[0010] In one embodiment of the present application, the front platform has a first workstation and a second workstation, in which the floor of the front platform is located on the ground at the first workstation, and in which the floor of the front platform is flush with the floor of the compartment at the second workstation;

[0011] The second lifting device is used to drive the front platform to move between the first workstation and the second workstation.

[0012] In one embodiment of the present application, the boarding vehicle further comprises a transition plate;

[0013] The front platform also has a third workstation, which is located above the second workstation, and the first lifting device can also drive the front platform to move between the second workstation and the third workstation;

[0014] One end of the transition plate is connected to the front platform, and the other end of the transition plate can overlap the floor of the car body; or, one end of the transition plate is connected to the car body, and the other end of the transition plate can overlap the floor of the front platform.

[0015] In one embodiment of the present application, the first lifting device is a scissors-type lifting device; and / or the second lifting device is a linear guide rail.

[0016] In one embodiment of the present application, the chassis is provided with a leg assembly for supporting and fixing the chassis.

[0017] In one embodiment of the present application, the compartment is provided with a positioning portion, and the chassis is provided with a positioning matching portion, and the positioning portion cooperates with the positioning matching portion to position the compartment.

[0018] In one embodiment of the present application, the boarding vehicle further includes a position sensor, and the position sensor is used to detect the position of the compartment.

[0019] The beneficial effects of this application are mainly:

[0020] The boarding car provided by the present application has a car body installed on a first lifting device to rise or fall relative to the chassis, thereby driving the front platform to rise or fall. At the same time, since the car body is provided with a second lifting device, the second lifting device is located at the front end of the cab, and the front platform is installed on the second lifting device; the second lifting device can drive the front platform to rise or fall to adjust the service height of the front platform, and since the second lifting device can drive the front platform to fall below the roof of the cab, the service height can be lowered to below the roof of the cab; when the second lifting device drives the front platform to connect with the car body, passengers can enter the car body from the front platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 A schematic diagram of the structure of the boarding vehicle provided in the embodiment of the present application;

[0023] Figure 2 A schematic diagram of the structure of the boarding vehicle provided in an embodiment of the present application (showing the cab);

[0024] Figure 3 A schematic diagram of a boarding vehicle provided in an embodiment of the present application being in a first working position on a front platform;

[0025] Figure 4 A schematic diagram of a boarding vehicle provided in an embodiment of the present application being in the second working position on the front platform;

[0026] Figure 5 A front view of the boarding vehicle provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of a boarding vehicle provided in an embodiment of the present application being in the third working position on the front platform;

[0028] Figure 7 for Figure 6 A partial enlarged view of point A in the middle.

[0029] The following are the descriptions of the reference numerals:

[0030] 1-chassis; 2-cab; 3-carriage; 31-transparent window; 4-front platform; 41-telescopic platform; 42-fixed platform; 5-first lifting device; 6-second lifting device; 71-front outrigger assembly; 72-rear outrigger assembly; 81-transition plate body; 82-folded edge. DETAILED DESCRIPTION

[0031] The technical solution of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0032] In the description of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, if the terms "first", "second", "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0033] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0034] See also Figures 1 to 7 As shown, this embodiment provides a boarding vehicle, including a chassis 1, a cab 2, a body 3 and a front platform 4, the chassis 1 is provided with a first lifting device 5, the cab 2 is located on the chassis 1, and the body 3 is installed on the first lifting device 5 to rise or fall relative to the chassis 1; the body 3 is provided with a second lifting device 6, the second lifting device 6 is located at the front end of the cab 2, and the front platform 4 is installed on the second lifting device 6, the second lifting device 6 is configured to drive the front platform 4 to descend below the top plate of the cab 2, and the second lifting device 6 is also configured to drive the front platform 4 to communicate with the body 3.

[0035] In the boarding vehicle provided in this embodiment, the car body 3 is installed on the first lifting device 5 to rise or fall relative to the chassis 1, thereby driving the front platform 4 to rise or fall. At the same time, since the car body 3 is provided with a second lifting device 6, the second lifting device 6 is located at the front end of the cab 2, and the front platform 4 is installed on the second lifting device 6; the second lifting device 6 can drive the front platform 4 to rise or fall to adjust the service height of the front platform 4, and since the second lifting device 6 can drive the front platform 4 to fall below the top plate of the cab 2, the service height can be lowered to below the top plate of the cab 2; the front platform 4 is used to connect the car body 3 and the aircraft. When the second lifting device 6 drives the front platform 4 to communicate with the car body 3, passengers can enter the car body 3 from the aircraft through the front platform 4, and can also board the aircraft from the car body 3 through the front platform 4.

[0036] It should be understood that the front platform 4 is lowered below the roof of the cab 2, which means that the bottom plate of the front platform 4 can be lowered below the lowest position of the cab roof. Generally, the upper surface of the roof of a conventional cab can be a plane, or a structure with a high middle and low sides. When the roof is a structure with a high middle and low sides, the second lifting device 6 can drive the front platform 4 to descend until the bottom plate of the front platform is lower than the lower positions of the two sides of the cab 2 roof.

[0037] In special circumstances, for a semi-cab structure with only one driving position, the upper surface of its top plate is a stepped surface, which includes a first surface, a second surface and a vertical surface connected between the first surface and the second surface, and the first surface is higher than the second surface. At this time, the second lifting device 6 can drive the front platform 4 to descend until the bottom plate of the front platform is lower than the second surface.

[0038] In one embodiment, see Figure 2 As shown, Figure 2 Part of the side wall of the box body 3 is hidden to show the cab 2 inside the box body 3. The cab 2 is installed inside the box body 3. The side wall of the box body 3 is provided with a perspective window. The side wall of the box body 3 includes but is not limited to the front side wall, the left side wall and the right side wall. The specific setting position and size of the transparent window 31 shall be based on not affecting the driver's sight.

[0039] In this embodiment, the cab 2 is not directly mechanically connected to the chassis 1, and the cab 2 rises and falls together with the vehicle body 3. The chassis 1 includes a power system, a steering system, and a braking system.

[0040] Exemplarily, the fuel chassis 1 uses an engine as a power source, and the electric chassis 1 uses a drive motor and a power battery as a power source.

[0041] In some embodiments, the power system, steering system and braking system are all implemented through a hydraulic pipeline system. For example, the hydraulic pipeline is laid on the chassis 1, and the flow direction of the hydraulic oil in the hydraulic pipeline is controlled by the control system to achieve the movement, steering or braking stop of the boarding vehicle.

[0042] In other embodiments, the power system and steering system may also adopt an electronically controlled power steering system. The chassis 1 is provided with a motor actuator, a gearbox and a sensor (speed sensor, pressure sensor, etc.). The electronically controlled power steering system uses sensors to collect vehicle status and driver operation information, and calculates a suitable output signal through an electronic controller (ECU), and then transmits the output power to the steering mechanism through the motor actuator and the gearbox, thereby achieving accurate and efficient steering of the vehicle. The braking system may be an electric braking system, which obtains the driver's braking intention through a brake pedal sensor (such as a pressure sensor). The brake pedal sensor can measure the position and pressure of the pedal and transmit the information to the ECU. At the same time, the wheel speed sensor detects the wheel speed in real time and transmits the information to the ECU. The ECU calculates the braking force requirement based on the pressure of the brake pedal and the speed of the wheel, and adjusts the vehicle braking force by controlling the brake pressure.

[0043] It should be understood that the hydraulic pipeline system, the electric power steering system and the electric brake system should be understandable to those skilled in the art, and are well known and easy to implement for those skilled in the art, so this embodiment will not be described in detail.

[0044] In another embodiment, the cab 2 is mounted on the chassis 1 to drive the chassis 1 to run or brake; the body 3 is covered outside the cab 2, and the body 3 is provided with a transparent window 31 corresponding to the side wall of the cab 2, so that the driver can observe the external environment through the glass of the cab 2 and the transparent window 31 on the body 3. At this time, the connection relationship between the cab 2 and the chassis 1 and the implementation method of the running, steering and braking of the chassis 1 are the same as those of the conventional boarding vehicle, and will not be described in detail here.

[0045] When the boarding vehicle is in motion, the compartment 3 is lowered to a low position, and the driver's sight line is higher than the front platform 4, which makes docking with the aircraft more accurate and safer. The vehicle driving and the lifting and lowering of the compartment 3 can be completed by one staff member, which is more efficient and saves labor costs.

[0046] In one embodiment, the first lifting device 5 is a scissor lift device, and the second lifting device 6 is a linear guide rail. In this embodiment, a guide rail (not shown in the figure) is provided on the chassis 1 to allow the scissor lift device to reciprocate along the extension direction of the guide rail during the lifting process. For example, the extension direction of the guide rail is parallel to the length direction of the car body 3 (in Figure 1 The direction of the arrow Y in FIG.

[0047] It should be noted that the structures and working principles of the scissor lift device and the linear guide rail should be understandable to those skilled in the art, and are well known and easy to implement for those skilled in the art, so they will not be described in detail in this embodiment.

[0048] In this embodiment, the extension direction of the linear guide rail is in the height direction of the box body 3 (in Figure 1 The direction of the arrow Y in FIG.

[0049] Of course, the first lifting device 5 and the second lifting device 6 may also adopt other forms of lifting mechanisms.

[0050] In one embodiment, see Figure 1 and Figure 5 As shown, the front platform 4 includes a fixed platform 42 and a telescopic platform 41. The fixed platform 42 is connected to the second lifting device 6. The width of the fixed platform 42 is equal to the width of the compartment 3. The telescopic platform 41 can move relative to the fixed platform 42 to dock with the aircraft cabin door.

[0051] Exemplarily, the telescopic platform 41 is controlled to move forward and backward by a hydraulic cylinder or a motor to dock with the aircraft cabin door. The fixed platform 42 is installed on the second lifting device 6 and can be lifted and lowered with the cabin 3 or can be lifted and lowered separately along the second lifting device 6.

[0052] When the boarding vehicle completes the docking operation, the cabin 3 rises to the height of the aircraft door, and the telescopic platform 41 extends to receive the aircraft. Since the width of the fixed platform 42 is equal to the width of the cabin 3, a wheelchair or a stretcher can enter and exit the cabin 3 without any obstacles. The width of the fixed platform 42 and the width of the cabin 3 refer to the width of the two along the width direction of the cabin 3 (in Figure 5 The arrow direction Z in the figure indicates the dimension.

[0053] In one embodiment, the front platform 4 has a first station and a second station. In the first station, see Figure 3 As shown, the floor of the front platform 4 is located on the ground, in the second station, see Figure 4 As shown, the floor of the front platform 4 is flush with the floor of the compartment 3; the second lifting device 6 is used to drive the front platform 4 to move between the first station and the second station.

[0054] When the second lifting device 6 drives the front platform 4 to descend to the ground, the lowest service height of the front platform 4 is 0 meters. At this time, passengers can directly enter the front platform 4, eliminating the existing rear lifting platform, thereby shortening the overall length of the boarding car. For example, when the front platform 4 is in the first position, the wheelchair can be directly pushed onto the front platform 4. The driver can also control the front platform 4 to rise to the second position by holding the front platform 4 control box. At this time, the floor of the front platform 4 is at the same height as the floor of the car body 3, which is convenient for pushing the wheelchair into the car body 3.

[0055] It should be understood that the front platform 4 can not only be located at the first working station or the second working station, but can also hover at any position between the two working stations.

[0056] In one embodiment, the boarding car also includes a transition plate; the front platform 4 also has a third workstation, which is located above the second workstation, and the first lifting device 5 can also drive the front platform 4 to move between the second workstation and the third workstation; one end of the transition plate is connected to the car body 3, and the other end of the transition plate can be overlapped on the floor of the front platform 4.

[0057] By setting the third station, the position of the front platform 4 can be fine-tuned, so that the aircraft door can be docked more accurately. In addition, the third station can achieve a higher service height and can be used to serve large aircraft such as A380.

[0058] It should be noted that, in order to enable the front platform 4 to move to the third workstation, the second lifting device 6 may be a multi-stage cylinder.

[0059] In some embodiments, see Figure 6 and Figure 7 As shown, the transition plate includes a transition plate body 81, one end of which is hinged to the floor of the car body, and the other end of the transition plate body 81 is bent to form a folded edge 82. The angle between the folded edge 82 and the transition plate body 81 is an obtuse angle. The folded edge 82 extends to the outside of the car body 3. When the front platform 4 rises to the floor of the front platform and contacts the folded edge 82, the front platform continues to rise, which can lift up the folded edge 82, so that the transition plate body 81 is in an inclined state, which is convenient for wheelchairs or stretchers to pass.

[0060] It should be understood that the width of the folded edge 82 can be designed to be as wide as possible without affecting the descent of the front platform, so as to increase the contact area between the folded edge 82 and the floor of the front platform and enhance the overlap stability.

[0061] In other embodiments, one end of the transition plate can also be connected to the front platform 4, and the other end of the transition plate can be overlapped on the floor of the body 3. Exemplarily, a slide is provided on the floor of the front platform 4, and the extension direction of the slide is consistent with the length direction of the body 3; a rotating shaft is provided on the lower surface of the transition plate, and the rotating shaft is limited in the slide and can move back and forth along the extension direction of the slide. During the lifting and lowering process of the front platform 4, the transition plate moves to the floor of the front platform 4 along the extension direction of the slide to ensure that the front platform 4 can be lifted and lowered normally. When the front platform 4 is in the third station, or when the position of the front platform 4 is between the second station and the third station, the transition plate slides in the direction close to the body 3. Since the height of the body floor is lower than the height of the front platform floor, the transition plate will rotate around the axis of the rotating shaft under the action of its own gravity, and thus will tilt downward, so that the end of the transition plate located outside the slide is overlapped on the floor of the body 3. At this time, the transition plate forms a slope between the floor of the front platform 4 and the body 3, which is convenient for wheelchairs or stretchers to pass.

[0062] In one embodiment, the chassis 1 is provided with a leg assembly for supporting and fixing the chassis 1 .

[0063] For example, see Figure 1 As shown, the leg assembly includes a front leg assembly 71 and a rear leg assembly 72. Both the front leg assembly 71 and the rear leg assembly 72 are connected to the chassis 1. When the body 3 is lifted, the leg assembly is mainly used to provide auxiliary support to the entire vehicle to ensure the stability of the boarding vehicle during operation. Both the front leg assembly 71 and the rear leg assembly 72 include two legs, that is, the leg assembly includes a total of four legs. All four legs are extended to contact the ground to form a four-point auxiliary support for the entire vehicle. When the body 3 is lifted to a certain height, the four legs can effectively prevent the entire vehicle from swinging laterally. When the boarding vehicle completes its work or needs to be evacuated urgently, the four legs are all retracted and the entire vehicle drives away from the working position.

[0064] In one embodiment, the body 3 is provided with a positioning portion, and the chassis 1 is provided with a positioning matching portion, and the positioning portion cooperates with the positioning matching portion to position the body 3 .

[0065] Exemplarily, the positioning portion can be a positioning protrusion, the number of the positioning protrusions can be four, the four positioning protrusions are respectively arranged at the four corners of the bottom of the body 3, the positioning matching portion can be a positioning groove, and correspondingly, the number of the positioning grooves is also four. When the body 3 is lowered onto the chassis 1, the four positioning protrusions can be respectively and correspondingly limited in the four positioning grooves.

[0066] Of course, the positioning portion may also be a positioning groove, and the positioning matching portion may be a positioning protrusion.

[0067] It should be noted that the forms of the positioning portion and the positioning matching portion are not limited to the positioning protrusion and the positioning groove, as long as the positioning function of the compartment body 3 can be achieved.

[0068] In one embodiment, the boarding vehicle further includes a position sensor (not shown in the figure), which is used to detect the position of the compartment 3 .

[0069] In this embodiment, the boarding vehicle further includes a controller, such as a PLC controller. When the position sensor detects that the body 3 is at the lowest position (i.e., the body 3 falls on the chassis 1), the controller can control the leg assembly to retract, and the boarding vehicle can move. When the body 3 is not at the lowest position, the boarding vehicle cannot move to ensure safety.

[0070] For example, the position sensor may be a proximity switch. The model of the PLC controller may be S7-200.

[0071] In one embodiment, the boarding vehicle also includes an emergency system, which may include an emergency electric pump or a manual emergency pump. When the boarding vehicle fails and the body 3 cannot be lowered or the legs cannot be retracted, the emergency electric pump or the manual emergency pump can be used to lower the body 3 to the lowest position and retract the legs, allowing the vehicle to quickly evacuate the scene.

[0072] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A boarding vehicle, characterized in that: The vehicle comprises a chassis, a cab, a body and a front platform, wherein the chassis is provided with a first lifting device, the cab is located on the chassis, and the body is installed on the first lifting device so as to rise or fall relative to the chassis; the body is provided with a second lifting device, the second lifting device is located at the front end of the cab, the front platform is installed on the second lifting device, the second lifting device is configured to drive the front platform to descend below the top plate of the cab, and the second lifting device is also configured to drive the front platform to communicate with the body.

2. The boarding vehicle according to claim 1, characterized in that: The cab is installed inside the box body, and the side wall of the box body is provided with a perspective window.

3. The boarding vehicle according to claim 1, characterized in that: The cab is installed on the chassis to drive the chassis to run or brake; the box cover is arranged outside the cab, and the box is provided with a transparent window corresponding to the side wall of the cab.

4. The boarding vehicle according to any one of claims 1 to 3, characterized in that: The front platform includes a fixed platform and a telescopic platform, the fixed platform is connected to the second lifting device, the width of the fixed platform is equal to the width of the compartment, and the telescopic platform can move relative to the fixed platform to dock with the aircraft cabin door.

5. The boarding vehicle according to any one of claims 1 to 3, characterized in that: The front platform has a first workstation and a second workstation. In the first workstation, the floor of the front platform is located on the ground. In the second workstation, the floor of the front platform is flush with the floor of the compartment. The second lifting device is used to drive the front platform to move between the first workstation and the second workstation.

6. The boarding vehicle according to claim 5, characterized in that: Also included is a transition plate; The front platform also has a third workstation, which is located above the second workstation, and the first lifting device can also drive the front platform to move between the second workstation and the third workstation; One end of the transition plate is connected to the front platform, and the other end of the transition plate can overlap the floor of the car body; or, one end of the transition plate is connected to the car body, and the other end of the transition plate can overlap the floor of the front platform.

7. The boarding vehicle according to any one of claims 1 to 3, characterized in that: The first lifting device is a scissors-type lifting device; and / or the second lifting device is a linear guide rail.

8. The boarding vehicle according to any one of claims 1 to 3, characterized in that: The chassis is provided with a leg assembly for supporting and fixing the chassis.

9. The boarding vehicle according to any one of claims 1 to 3, characterized in that: The box body is provided with a positioning portion, and the chassis is provided with a positioning matching portion, and the positioning portion cooperates with the positioning matching portion to position the box body.

10. The boarding vehicle according to any one of claims 1 to 3, characterized in that: A position sensor is also included, and the position sensor is used to detect the position of the compartment.

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