CN113511144B

CN113511144B - Wheelchair-assisted getting-on and getting-off system for bus and bus

Info

Publication number: CN113511144B
Application number: CN202111065922.7A
Authority: CN
Inventors: 古玉锋; 张永吉; 程浩; 赵耀晶; 杜雨洁; 杨明瑞; 张帅; 高世椿; 王育阳; 赵宇飞
Original assignee: Changan University
Current assignee: Changan University
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2021-12-07
Anticipated expiration: 2041-09-13
Also published as: CN113511144A

Abstract

The invention discloses a wheelchair-assisted getting-on and getting-off system for a bus and the bus, wherein the wheelchair-assisted getting-on and getting-off system comprises: the fixed plate is fixed in the second-stage step of the bus and is fixedly connected with the driving device; the driving device is used for driving the core part to move towards the first-stage step; a core portion, the core portion comprising: the lifting device comprises an inclined plate, the inclined plate comprises a grounding end and is provided with a first working position and a second working position, in the first working position, an acute angle is formed between the inclined plate and the ground, and the grounding end is contacted with the ground; in the second working position, the inclined plate is flush with the ground in the bus; the telescopic device comprises a telescopic plate, and pulleys matched with the sliding grooves are arranged on the telescopic plate; and the clamping device is arranged on the telescopic plate and is used for clamping the wheelchair. The wheelchair can solve the problem that the existing wheelchair is inconvenient to get on or off the bus.

Description

Wheelchair-assisted getting-on and getting-off system for bus and bus

Technical Field

The invention relates to the technical field of auxiliary appliances, in particular to a wheelchair-assisted getting-on and getting-off system for a bus and the bus.

Background

In recent years, with the rapid development of the economy of China and the continuous progress of the material culture and the mental culture of society, the quality of life of people is continuously improved. However, the problem of inconvenience for the lower limb disabled to get on or off the vehicle always exists. At present, the improvement of the buses in China is continuously realized due to the development of new energy, specifically, the chassis of the buses becomes low, and the buses are changed from being stepped to being stepless, and the like, and the improvement also embodies the care of disabled people. However, most buses are not new energy vehicles, and they still need some devices to assist the disabled to get on or off the bus. At present, most auxiliary devices are not completely automated, and all auxiliary devices need to enter a bus through human interference or by means of the movement of a wheelchair.

Disclosure of Invention

The invention aims to provide a wheelchair-assisted getting-on and getting-off system for a bus and the bus, and aims to solve the problem that the existing wheelchair is inconvenient to get on and off the bus.

The technical scheme for solving the technical problems is as follows:

the invention provides a wheelchair-assisted getting on/off system for a bus, which comprises: the fixed plate is fixed in the second-stage step of the bus and is fixedly connected with the driving device; a driving device for driving the core part to move towards the first step; a core portion, the core portion comprising: the lifting device comprises an inclined plate, the inclined plate comprises a grounding end and has a first working position and a second working position, in the first working position, an acute angle is formed between the inclined plate and the ground, and the grounding end is in contact with the ground; in the second working position, the inclined plate is flush with the ground in the bus; the telescopic device comprises a telescopic plate, and pulleys matched with the sliding grooves are arranged on the telescopic plate; a clamping device mounted on the expansion plate for clamping the wheelchair.

Alternatively, the driving means is configured as a hydraulic driving means including a moving plate, two cylinder supports, and two cylinders fixed between the two cylinder supports and the moving plate.

Optionally, the lifting device further comprises a lifting upper plate located above the moving plate and having a closed position where the inclined plate is located above and parallel to the lifting upper plate and a raised position where the inclined plate is switched between the first working position and the second working position.

Alternatively, the inclined plate is driven by a first hydraulic mechanism to switch between the first operating position and the second operating position; and/or the lifting upper plate is driven to be switched between the closing position and the lifting position through a second hydraulic mechanism.

Optionally, the telescopic device further comprises a driving motor, a transmission gear and a rack guide rail matched with the transmission gear, the driving motor is located below the telescopic plate, and the transmission gear is connected with an output shaft of the driving motor.

Optionally, the clamping device comprises two rail sliding plates, and two clamping mechanisms are respectively arranged on the two rail sliding plates and used for clamping two groups of wheels of the wheelchair.

Optionally, the ground terminal is further connected with a flap device, and the flap device is rotatably connected with the expansion plate.

Optionally, the wheelchair-assisted getting on and off system further comprises a sensing control device, wherein the sensing control device comprises a pressure sensor, and the pressure sensor is arranged on the grounding side of the turning plate and used for sensing the ground.

Optionally, the sensing control device further includes a plurality of photoelectric sensors, and the plurality of photoelectric sensors are respectively disposed on the driving device, the telescopic device, and the flap device.

Based on the scheme, the invention further provides the bus, and the bus comprises the wheelchair-assisted getting-on and getting-off system for the bus.

The invention has the following beneficial effects:

the wheelchair-assisted getting-on and getting-off system for the bus can be used for enabling the disabled or the old who take the wheelchair to get on and off the bus to a great extent, on one hand, in operation, only a driver controls an opening button, and other actions can be realized through automation, so that excessive manual operation is reduced; on the other hand, the invention can be contracted to the lower part of the bus step during the non-use period, and the getting on and off of the buses by other people are not influenced; in addition, the invention is provided with an internal alarm prompting lamp and a sensor, and can realize the braking of the device at any time through the sensor, thereby greatly improving the safety and the reliability of the device during the use.

Drawings

FIG. 1 is a schematic perspective view of a wheelchair-assisted getting on/off system for a bus according to the present invention in a non-use state;

FIG. 2 is an expanded view of a schematic perspective view of a wheelchair-assisted getting on/off system for a bus according to the present invention;

FIG. 3 is an exploded view of a wheelchair assisted get-on and get-off system for a bus in accordance with the present invention;

FIG. 4 is a schematic diagram of the operation of the sensing control device of the wheelchair-assisted getting on/off system for buses according to the present invention;

fig. 5 is a partial reverse exploded view of the exploded view of fig. 3.

Description of the reference numerals

1-a fixed plate, 2-a hydraulic cylinder support, 3-a hydraulic cylinder, 4-a movable plate, 5-a primary horizontal lifting hydraulic cylinder, 51-a first inclined plate, 52-a second inclined plate, 6-a lifting upper plate, 7-a secondary horizontal lifting hydraulic cylinder, 8-an inclined plate, 9-a driving motor, 10-a transmission gear, 11-a rack guide rail, 12-a telescopic plate, 13-a first clamping hydraulic support, 14-a clamping hydraulic cylinder, 15-a second clamping hydraulic support, 16-a first guide rail sliding plate, 17-a second guide rail sliding plate, 18-a turning plate hydraulic cylinder support, 19-a turning plate hydraulic cylinder, 20-a turning plate, 21-a connecting rod, 22-a pressure sensor, 23-an internal alarm indicator lamp and 24-a photoelectric sensor, 25-hydraulic pump.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

In the present invention, the terms "first" and "second" are used only for distinction and have no sequential meaning.

Examples

The invention provides a wheelchair-assisted getting on/off system for a bus, which comprises the following components in parts by weight as shown in figures 1 to 3: the fixing plate 1 is fixed in the second-level step of the bus and fixedly connected with a driving device; a driving device for driving the core part to move towards the first step; a core portion, the core portion comprising: the lifting device comprises an inclined plate 8, wherein the inclined plate 8 comprises a grounding end and has a first working position and a second working position, in the first working position, an acute angle is formed between the inclined plate 8 and the ground, and the grounding end is close to the ground; in the second working position, the inclined plate 8 is flush with the ground in the bus; the inclined plate 8 is provided with a sliding groove, the telescopic device comprises a telescopic plate 12, and the telescopic plate 12 is provided with a pulley matched with the sliding groove; a clamping device mounted on the telescopic plate 12 for clamping the wheelchair.

The invention has the following beneficial effects:

the wheelchair-assisted getting-on and getting-off system for the bus can be used for enabling the disabled or the old who take the wheelchair to get on and off the bus to a great extent, on one hand, in operation, only a driver controls an opening button, and other actions can be realized through automation, so that excessive manual operation is reduced; on the other hand, the invention can be contracted to the lower part of the bus step during the non-use period, and the getting on and off of the buses by other people are not influenced; in addition, the invention is provided with the internal alarm prompting lamp 23 and the sensor, and the motion of the device can be braked at any time through the sensor, thereby greatly improving the safety and the reliability of the device during the use.

Specifically, on the existing bus with steps, the space existing inside the steps can be fully used for placing the wheelchair-assisted getting on and off system, and as the common buses with steps are provided with two steps, the whole wheelchair-assisted getting on and off system can be fixed on the bus through the fixed connection between the fixed plate 1 and the second-order steps. However, when a patient who takes the wheelchair, the bus needs to make one part of the wheelchair auxiliary system close to the ground and form an included angle with the ground, so the invention designs the inclined plate 8, the inclined plate 8 has a first working position contacted with the ground and a second working position flush with the ground in the bus, and comprises a grounding end and a connecting end opposite to the grounding end, in the first working position, an acute angle is formed between the inclined plate 8 and the ground, and the grounding end is close to the ground; in the second operating position, the inclined plate 8 is flush with the ground in the bus. In addition, because the inclined plate 8 is arranged in the first position in an inclined mode, if the wheelchair enters the inclined plate 8, the wheelchair can slide down without being fixed, and safety hazards are caused, and therefore the clamping device is arranged on the inclined plate 8. Furthermore, since it is necessary to extend the inclined plate 8 out of the bus, a telescopic device is designed which can slide relative to the inclined plate 8.

Alternatively, referring to fig. 2 and 3, the driving means is configured as a hydraulic driving means including a moving plate 4, two cylinder holders 2, and two cylinders 3 fixed between the two cylinder holders 2 and the moving plate 4.

Specifically, the left side and the right side (refer to fig. 2, the direction perpendicular to the X direction is the left-right direction) on the fixed plate 1 are respectively connected with the two hydraulic cylinder supports 2 through bolts, then the actuating elements on the two sides of the system, namely the two ends of the hydraulic cylinders 3, are respectively connected with the hydraulic cylinder supports 2 through bolts, the hydraulic cylinder supports 2 are connected with the movable plate 4 through bolts, and the hydraulic cylinders 3 are installed on the movable plate 4, so that the movable plate 4 moves outwards along the first-stage step of the bus under the action of the hydraulic cylinders 3.

Of course, the present invention is not limited to any particular driving device capable of implementing the core driving, and one skilled in the art may design the driving device in combination with the present invention, for example, in some embodiments, the driving device is configured to be electrically driven and/or a conventional mechanical driving (such as a gear, a worm gear, etc.).

Optionally, the lifting device further comprises a lifting plate 6, the lifting plate 6 is located above the moving plate 4 and has a closed position and a raised position, in the closed position, the inclined plate 8 is located above the lifting plate 6 and is parallel to the lifting plate 6, and in the raised position, the inclined plate 8 is switched between the first working position and the second working position.

The inclined plate 8 is driven by a first hydraulic mechanism to be switched between the first working position and the second working position; and/or the lifting upper plate 6 is driven by a second hydraulic mechanism to be switched between the closing position and the lifting position.

Specifically, referring to fig. 2 and 3, the lifting device is a device mounted on the moving plate 4, and is divided into a first-stage horizontal lifting mechanism and a second-stage inclined lifting mechanism. The first-level horizontal lifting mechanism comprises a first hydraulic mechanism, the first hydraulic mechanism comprises two sides of first-level horizontal lifting hydraulic cylinders 5 and two sides of inclined plates (a first inclined plate 51 and a second inclined plate 52), the first-level horizontal lifting mechanism is connected with the movable plate 4 through the two sides of the first-level horizontal lifting hydraulic cylinders 5, and the lifting upper plate 6 moves in the vertical direction. The second-level inclined lifting mechanism comprises a second hydraulic mechanism, and the second hydraulic mechanism is connected with the lifting upper plate 6 through bolts at the grounding end of the inclined plate 8 and second-level horizontal lifting hydraulic cylinders 7 at two sides of the connecting end, so that the inclined plate 8 can perform inclined motion by taking the bolt connecting point of the grounding end as the center. Also, the mechanism for driving the tilting plate 8 and the lifting top plate 6 is not limited in particular, and a person skilled in the art may design the mechanism in accordance with the present invention, for example, in some embodiments, the first hydraulic mechanism and/or the second hydraulic mechanism is replaced by an electric drive and/or a conventional mechanical drive (such as gears, worm gears, etc.).

In addition, referring to fig. 3 and 5, the telescopic device further includes a driving motor 9, a transmission gear 10, and a rack rail 11 cooperating with the transmission gear 10, the driving motor 9 is located below the telescopic plate 12 (referring to fig. 1, the direction of the arrow in the Y direction is downward, and vice versa), and the transmission gear 10 is connected to an output shaft of the driving motor 9. Specifically, referring to fig. 2 and 3, guide rail sliding blocks are arranged on two sides of the inclined plate 8, and four guide rail pulleys are respectively mounted on each guide rail sliding block and connected with guide rails on two sides inside the telescopic plate 12. A driving motor 9 is arranged below the inclined plate 8, and an output shaft of the driving motor 9 is connected with a transmission gear 10 and is connected with a rack guide rail 11 on the inner side of a telescopic plate 12, so that the telescopic plate 12 can move along the inclined direction of the inclined plate 8.

Of course, the widths of the front wheel set and the rear wheel set of the wheelchairs of different models are different, and the distance between the two clamping mechanisms on the two guide rail sliding plates is driven to change through the sliding and stretching of the two guide rail sliding plates relative to the inclined plate 8, so that the wheelchairs are adaptive to the wheelchairs of different models. Specifically, the clamping device comprises two guide rail sliding plates, and two clamping mechanisms are respectively arranged on the two guide rail sliding plates and used for clamping two groups of wheels of the wheelchair. Referring to fig. 2 and 3, the clamping device is provided with two rail sliding plates, namely a first rail sliding plate 16 and a second rail sliding plate 17, and each rail sliding plate is provided with two sets of opposite clamping mechanisms for respectively clamping a front wheel set and a rear wheel set of the wheelchair. Each set of clamping mechanism is composed of two pairs of same opposite clamping hydraulic cylinders 14, a first clamping hydraulic support 13 and a second clamping hydraulic support 15. The clamping hydraulic cylinder 14 is respectively connected with the hydraulic supports on two sides through bolts, the first clamping hydraulic support 13 is connected with the guide rail sliding plate through bolts, and the lower sliding block of the second clamping hydraulic support 15 is embedded into the groove of the guide rail sliding plate, so that the clamping end moves along the direction perpendicular to the advancing direction of the wheelchair, and the clamping function is respectively realized on two wheels of a front wheel set and two wheels of a rear wheel set of the wheelchair.

The ground terminal is further connected with a flap device, referring to fig. 2 and 3, the flap device is rotatably connected with the expansion plate 12. The rotatable connection mode between the flap device and the expansion plate 12 is not particularly limited in the present invention, and the skilled person can select the mode of hinge connection or the like to realize the rotatable connection between the flap device and the expansion plate 12. In the present invention, the hydraulic flap cylinder support 18 of the flap device is mounted on the telescopic plate 12 by means of bolts. One end of a turning plate hydraulic cylinder 19 of the turning plate device is connected with a turning plate hydraulic cylinder support 18 through a bolt, and the other end of the turning plate hydraulic cylinder 19, namely the piston rod end, is connected with the lower end of a connecting rod 21 through a bolt. The upper end of the connecting rod 21 is connected with a support lug on the side edge of the turning plate 20, and the bottom of the turning plate 20 is rotatably connected with the end part of the telescopic plate 12 through a bolt, so that the turning plate 20 rotates around the bolt connection point.

Besides, in the invention, the wheelchair-assisted getting on/off system further comprises a sensing control device, the sensing control device comprises a pressure sensor 22, and the pressure sensor 22 is arranged on the grounding side of the turning plate 20 and is used for sensing the ground. The sensing control device further comprises a plurality of photoelectric sensors 24, and the photoelectric sensors 24 are respectively arranged on the driving device, the telescopic device and the plate turnover device.

Specifically, referring to fig. 2 and 3, a plurality of photoelectric sensors 24 are respectively installed at the ends of the moving plate 4, the expansion plate 12, and the turning plate 20 to brake the power source and prevent a pedestrian from being touched. Pressure sensors 22 are placed at the lower ends of the telescopic plate 12 and the flap 20 so that the device can be angled according to the ground height. In addition, photoelectric sensors 24 and pressure sensors 22 are arranged on two guide rail sliding plates of the clamping device, so that after wheels of the wheelchair touch the opening of the two sensors, the clamping hydraulic cylinders 14 are started to clamp the front wheel set and the rear wheel set of the wheelchair.

In addition, referring to fig. 1, the sensing control device further includes a plurality of inner warning indication lamps 23, and the plurality of inner warning indication lamps 23 are uniformly distributed around the expansion plate 12 to remind passengers. The sensing control device is realized by using an 89C51 singlechip to perform A/D conversion on output signals of the sensor. The voltage signals input by the photoelectric sensor 24 and the pressure sensor 22 are converted into digital signals with digital quantity, after the conversion, the 89C51 single chip microcomputer controls the starting of the A/D converter, processes the input digital signals, amplifies the processed digital signals through a triode amplifying circuit, and then controls the opening and closing of the electromagnetic valve and the motor.

In addition, the wheelchair-assisted getting on/off system for the bus provided by the invention has the following working principle:

when the wheelchair is driven:

after the bus stops stably, the driver presses the getting-on start button, and the system device starts to start. Firstly, an alarm prompt lamp 23, a pressure sensor 22 and a photoelectric sensor 24 in the device are started; and then, a hydraulic pump 25 for driving the whole hydraulic system is started, and the hydraulic cylinder 3 is started under the action of the three-position four-way reversing valve, so that the core part extends out of the interior of the second-stage step of the bus. When the hydraulic cylinder 3 is fully extended, the first-level horizontal lifting hydraulic cylinder 5 is triggered to start, and when the connecting end (referring to fig. 2, the direction indicated by the arrow in the direction X in the figure is the connecting side, otherwise, the grounding side) of the expansion plate 12 is lifted to be flush with the floor of the bus, the photoelectric sensor 24 starts to stop lifting. At the same time, the clamping device motor is triggered to start in the forward direction, so that the first guide rail sliding plate 16 and the second guide rail sliding plate 17 equipped with the clamping device move to the end of the ground end of the telescopic plate 12. Then, the driving motor 9 is started to drive the transmission gear 10 and the rack guide rail 11 to enable the telescopic device to extend out of the bus, when the guide rail extends to the end part of the grounding end, the two-stage inclined lifting mechanism is automatically stopped and started, and the telescopic plate 12 and the inclined plate 8 which are in a horizontal state rotate around a bolt connection point at the front end of the inclined plate 8. When the pressure sensor 22 at the lower end of the telescopic plate 12 contacts the ground, the secondary horizontal lifting hydraulic cylinder 7 automatically stops working. After the secondary horizontal lifting hydraulic cylinder 7 stops working, the turning plate hydraulic cylinder 19 is started to enable the turning plate 20 to rotate around the bolt connection point, and when the pressure sensor 22 at the bottom of the turning plate 20 touches the ground, the movement is stopped. There are two clamping mechanism that are used for pressing from both sides tight wheelchair front wheelset and rear wheel group respectively on expansion plate 12, two clamping mechanism install respectively on two guide rail slide, when the wheelchair moved to the link along expansion plate 12, at first wheelchair front wheelset passed through second guide rail slide 17, activated photoelectric sensor 24 on the second guide rail slide 17, then through first guide rail slide 16 and activated pressure sensor 22 on it to the tight hydraulic support 13 of first clamp on the first guide rail slide 16 of control presss from both sides tight wheelchair front wheelset. After the first clamping hydraulic support 13 clamps the front wheel set of the wheelchair, the starting motor drives the wheelchair to move along the retractable plate 12. When the rear wheel group moves onto the second guide rail sliding plate 17, the pressure sensor 22 is excited, and the front wheel group of the wheelchair always excites the photoelectric sensor 24 on the first guide rail sliding plate 16, so that the first clamping hydraulic support 13 on the second guide rail sliding plate 17 clamps the rear wheel group of the wheelchair, and the wheelchair is fixed on the whole device. When the rear wheel set of the wheelchair is clamped, a driving motor 9 in the telescopic system is started to drive a gear 10 and a rack guide rail 11, so that the wheelchair is driven into the bus. Then, the secondary horizontal lifting hydraulic cylinder 7 is started to restore the whole device to the horizontal state. And simultaneously, the hydraulic flap cylinder 19 is started to control the retraction of the flap system. Then the front wheel set and the rear wheel set of the wheelchair are loosened, so that the wheelchair enters the bus. After the wheelchair enters the bus, the first-level horizontal lifting hydraulic cylinder 5 is started, so that the whole device is lowered to the original height. Then, the hydraulic cylinder 3 is started to retract the whole device into the second-stage step of the bus.

When the wheelchair gets off:

after the bus stops stably, the driver presses a get-off starting button, and the system starts to start. Firstly, an alarm prompt lamp 23, a pressure sensor 22 and a photoelectric sensor 24 in the device are started; and then, a hydraulic pump 25 for driving the whole hydraulic system is started, and the hydraulic cylinder 3 is started under the action of the three-position four-way reversing valve, so that the whole device extends out of the interior of a second-stage step of the bus. When the hydraulic cylinder 3 is fully extended, the first-level horizontal lifting hydraulic cylinder 5 is triggered to start, so that the lifting upper plate 6 and the devices above are lifted to be flush with the floor of the bus. When the photoelectric sensor 24 installed at the end of the connecting end of the expansion plate 12 senses the floor of the bus, the bus stops automatically. At the same time, the motor for actuating the clamping device is started in the reverse direction, so that the two rail slides 16, 17 with the clamping device attached thereto are moved to the end of the connection end of the telescopic plate 12. Two clamping devices for clamping a front wheel set and a rear wheel set of the wheelchair are respectively arranged on the telescopic plate 12, and the two sets of clamping devices are respectively arranged on the two guide rail sliding plates. When the wheelchair moves along the expansion plate 12 to the ground end, firstly, the front wheel set of the wheelchair passes through the first guide rail sliding plate 16, the photoelectric sensor 24 on the first guide rail sliding plate is activated, and then the first clamping hydraulic support 13 on the second guide rail sliding plate 17 is controlled to clamp the front wheel set of the wheelchair through the second guide rail sliding plate 17 and the pressure sensor 22 on the second guide rail sliding plate. After the first clamping hydraulic support 13 clamps the front wheel set of the wheelchair, the starting motor drives the wheelchair to move along the grounding end of the retractable plate 12. When the rear wheel group moves to the first guide rail sliding plate 16, the pressure sensor 22 is excited, and the front wheel group of the wheelchair always excites the photoelectric sensor 24 on the second guide rail sliding plate 17, so that the first clamping hydraulic support 13 on the first guide rail sliding plate 16 clamps the rear wheel group of the wheelchair, and the wheelchair is fixed on the whole device. When the rear wheel set of the wheelchair is clamped, the driving motor 9 is started to drive the gear 10 and the rack guide rail 11 to enable the telescopic device to extend out of the bus, the guide rail automatically stops when extending to the end part of the grounding end, and the secondary inclined lifting mechanism is started, so that the telescopic plate 12 and the inclined plate 8 which are in a horizontal state rotate around the bolt connection point at the front end of the inclined plate 8. When the pressure sensor 22 at the lower end of the telescopic plate 12 contacts the ground, the secondary horizontal lifting hydraulic cylinder 7 automatically stops working. After the secondary horizontal lifting hydraulic cylinder 7 stops working, the turning plate hydraulic cylinder 19 is started to enable the turning plate 20 to rotate around the bolt connection point, and when the pressure sensor 22 at the bottom of the turning plate 20 touches the ground, the movement is stopped. The second set of clamping mechanism is loosened to enable the front wheel set of the wheelchair not to be clamped, and the guide rail is started to enable the rear wheel set of the wheelchair to move towards the ground along the telescopic plate 12 under the action of the second guide rail sliding plate 17. When the wheelchair moves to the ground, a driving motor 9 in the telescopic system is started to drive a gear 10 and a rack guide rail 11 to move, so that the telescopic system is retracted. And simultaneously, the secondary horizontal lifting hydraulic cylinder 7 is started to enable the device to be retracted, and the plate turnover hydraulic cylinder 19 is started to control the plate turnover system to be retracted. And starting the first-level horizontal lifting hydraulic cylinder 5 to enable the whole device to be lowered to the original height. Then, the hydraulic cylinder 3 is started to retract the whole device to the lower part of the second-stage step of the bus.

Based on the technical scheme, the invention further provides a bus which comprises the wheelchair-assisted getting on/off system for the bus, so that the bus provided by the invention has the same advantages as the wheelchair-assisted getting on/off system for the bus, and the details are not repeated herein. In addition, besides the wheelchair-assisted getting on/off system for the bus, the bus provided by the invention also comprises any other structural organization, which are common structural organizations, and the invention is not particularly limited to this.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a supplementary system of getting on or off bus of wheelchair for bus which characterized in that, supplementary system of getting on or off bus includes:

the fixing plate (1) is fixed in the secondary step of the bus and fixedly connected with the driving device;

a driving device for driving the core part to move towards the first step; a core portion, the core portion comprising:

the lifting device comprises an inclined plate (8), wherein the inclined plate (8) comprises a grounding end and has a first working position and a second working position, in the first working position, an acute angle is formed between the inclined plate (8) and the ground, and the grounding end is in contact with the ground; in the second working position, the inclined plate (8) is flush with the ground in the bus;

the telescopic device is characterized in that a sliding groove is formed in the inclined plate (8), the telescopic device comprises a telescopic plate (12), and a pulley matched with the sliding groove is arranged on the telescopic plate (12);

a clamping device mounted on the telescopic plate (12) for clamping the wheelchair; the drive arrangement constructs for hydraulic drive arrangement, hydraulic drive arrangement includes movable plate (4), lifting device still includes lifting upper plate (6), lifting upper plate (6) are located the top of movable plate (4) just has and closes up position and rising position close up the position, hang plate (8) are located lifting upper plate's (6) top and with lifting upper plate (6) are parallel rise the position, hang plate (8) switch over in first operating position with second operating position.

2. The wheelchair-assisted getting on and off system for buses as claimed in claim 1, wherein the hydraulic drive further comprises two hydraulic cylinder supports (2) and two hydraulic cylinders (3) fixed between the two hydraulic cylinder supports (2) and the moving plate (4).

3. Wheelchair-assisted boarding and disembarking system for buses according to claim 1, characterized in that the inclined plate (8) is driven by a first hydraulic mechanism to switch between the first and second working positions; and/or the lifting upper plate (6) is driven to be switched to the closing position and the lifting position through a second hydraulic mechanism.

4. The wheelchair-assisted getting on and off system for buses as claimed in claim 1, wherein the telescopic device further comprises a driving motor (9), a transmission gear (10) and a rack guide rail (11) which is matched with the transmission gear (10), the driving motor (9) is located below the telescopic plate (12), and the transmission gear (10) is connected with an output shaft of the driving motor (9).

5. The wheelchair-assisted getting on/off system for buses as claimed in claim 1, wherein the clamping device comprises two rail slides, and the two rail slides are respectively provided with a clamping mechanism for clamping two sets of wheels of the wheelchair.

6. The wheelchair-assisted getting on and off system for buses as claimed in claim 1, wherein the ground terminal is further connected with a flap device, and the flap device is rotatably connected with the expansion plate (12).

7. The wheelchair-assisted getting on/off system for buses as claimed in claim 6, further comprising a sensing control device, wherein the sensing control device comprises a pressure sensor (22), and the pressure sensor (22) is arranged on the grounded side of the flap (20) in the flap device for sensing the ground.

8. The wheelchair-assisted getting on/off system for buses as claimed in claim 7, wherein the sensing control device further comprises a plurality of photoelectric sensors (24), and the plurality of photoelectric sensors (24) are respectively disposed on the driving device, the telescopic device and the flap device.

9. A bus characterized in that it comprises a wheelchair assisted getting on/off system for a bus according to any one of claims 1-8.