CN212997073U - Wheelchair lifter and vehicle - Google Patents

Abstract

The present disclosure relates to wheelchair elevators and vehicles. The wheelchair lifter comprises a lifting platform, a propping piece and a driving mechanism, wherein two limiting long grooves are oppositely arranged on the upper surface of the lifting platform, the two limiting long grooves are respectively used for accommodating two wheelchair wheels of a limiting wheelchair, and the driving mechanism can drive the propping piece to move in the limiting long grooves along the vertical direction so as to enable the wheelchair wheels to exit from the limiting long grooves. The wheelchair can be locked by arranging the limiting long groove, so that the wheelchair is prevented from shifting in the lifting process, and the safety is high. Moreover, by arranging the abutting piece and the driving mechanism, the wheelchair can be unlocked conveniently and timely after the lifting platform is lifted in place.

Description

Wheelchair lifter and vehicle

Technical Field

The disclosure relates to the technical field of vehicle parts, in particular to a wheelchair lifter and a vehicle.

Background

With the development of society, the vehicle uses and serves crowds more and more comprehensively, especially for various devices developed by disabled people, so that the vehicle is more convenient. The wheelchair lifter is usually arranged on the vehicle, the lifter is provided with a lifting platform connected with a vehicle door so as to be convenient for disabled people to get on or off the vehicle without getting off the wheelchair, but the device still has certain risk, namely, the lifting platform is not provided with a fixed structure on the wheelchair when being lifted, so that the disabled people are easy to fear and worry. The convenience and the safety have improved space.

SUMMERY OF THE UTILITY MODEL

The purpose of the present disclosure is to provide a wheelchair lift and a vehicle, in which a wheelchair can be reliably fixed to a lift table, so that the wheelchair is prevented from shaking during the lift of the lift table, and the safety is high.

In order to achieve the purpose, the disclosure provides a wheelchair lifter, which comprises a lifting platform, a supporting part and a driving mechanism, wherein two limiting long grooves are oppositely arranged on the upper surface of the lifting platform, the two limiting long grooves are respectively used for accommodating two wheelchair wheels of a limiting wheelchair, and the driving mechanism can drive the supporting part to move in the limiting long grooves along the vertical direction so as to enable the wheelchair wheels to exit from the limiting long grooves.

Optionally, the abutting pieces include a first abutting piece and a second abutting piece, and the first abutting piece and the second abutting piece are arranged at intervals in each limiting long groove along the length direction of the limiting long groove.

Optionally, the wheelchair lifter has a first working mode and a second working mode, in the first working mode, the upper end surface of the first abutting piece is higher than the upper end surface of the second abutting piece, and the upper end surface of the second abutting piece is flush with the upper surface of the lifting platform; in the second working mode, the upper end surface of the first abutting piece is flush with the upper surface of the lifting platform, and the upper end surface of the first abutting piece is lower than the upper end surface of the second abutting piece.

Optionally, the limiting long groove is configured as a non-through groove or a through groove, when the limiting long groove is configured as a non-through groove, a through hole for the abutting member to pass through is formed in the bottom wall of the limiting long groove, and the bottom wall of the limiting long groove is configured as an arc shape so as to be adapted to the arc surface of the wheelchair wheel.

Optionally, the distance between the two limiting long grooves in the width direction of the lifting platform can be adjusted to adapt to wheelchairs with different wheel tracks.

Optionally, one of the limiting long grooves extends to the side wall of the lifting platform in the width direction of the limiting long groove so as to adapt to wheelchairs with different wheel tracks.

Optionally, the abutting part comprises a top rod part and a top arranged at the upper end of the top rod part, and the top is an elastic top.

Optionally, the driving mechanism includes a linear motor, a push rod of the linear motor is arranged along the up-down direction, and the push rod is connected with the lower end of the abutting piece.

Optionally, the abutting part is configured as a multi-stage hydraulic oil cylinder structure, and the driving mechanism comprises a hydraulic pump which supplies pressure oil to the multi-stage hydraulic oil cylinder structure.

Optionally, the wheelchair lift further comprises a controller and a sensor, the controller and the sensor are electrically connected, the sensor is used for detecting the height position of the lifting platform, and the controller controls the driving mechanism to work according to the detection result of the sensor.

According to another aspect of the present disclosure, a vehicle is provided, which includes the wheelchair lifting machine, the wheelchair lifting machine further includes a connecting portion, the lifting platform is movably disposed on the connecting portion in the up-down direction, and the connecting portion is connected to a body of the vehicle.

In the wheelchair lift that this disclosure provided, through setting up spacing elongated slot, can play the locking to the wheelchair, avoid the wheelchair to take place to shift at the lift in-process, the security is high, is favorable to eliminating the fear of disabled personage. Moreover, by arranging the abutting piece and the driving mechanism, the wheelchair can be unlocked conveniently and timely after the lifting platform is lifted in place.

Additional features and advantages of the disclosure will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:

FIG. 1 is a side elevation schematic view of a wheelchair lift of an embodiment of the present disclosure mated with a wheelchair wheel with the wheelchair wheel received within a spacing slot of a spacing;

FIG. 2 is a perspective schematic view of a wheelchair lift according to one embodiment of the present disclosure;

FIG. 3 is a schematic top view of a wheelchair lift embodying the present disclosure;

FIG. 4 is a perspective view of a wheelchair lift according to another embodiment of the present disclosure;

FIG. 5 is a schematic view of the wheelchair lift of one embodiment of the present disclosure operating in a first mode of operation;

figure 6 is a schematic view of the wheelchair lift of one embodiment of the present disclosure operating in a second mode of operation.

Description of the reference numerals

10-a lifting platform; 11-the upper surface of the lifting table; 12-a bevel; 20-limiting long grooves; 21-bottom wall of the limit elongated slot; 30-a butting piece; 31-a first abutting member; 32-a second abutting piece; 33-a stem portion; 34-a plug; 40-a drive mechanism; 41-linear motor; 411-a push rod; 42-a coupler; 50-wheelchair wheels.

Detailed Description

The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.

In the present disclosure, unless otherwise specified, the use of directional terms such as "up, down, left, and right" generally refers to the definition of reference in the drawing plane direction of the drawings, wherein "up" and "down" correspond to the up and down direction of the vehicle after the wheelchair lift is mounted on the vehicle. The terms "inside" and "outside" refer to the inside and the outside of the relevant parts. Furthermore, terms such as "first," "second," and the like, are used herein to distinguish one element from another, and are not necessarily sequential or significant.

As shown in fig. 1 to 6, the present disclosure provides a wheelchair lift, which includes a lifting platform 10, a propping member 30 and a driving mechanism 40, two limiting long grooves 20 are oppositely disposed on an upper surface 11 of the lifting platform 10, the two limiting long grooves 20 are respectively used for accommodating two wheelchair wheels 50 of a limiting wheelchair, the propping member 30 can move in the limiting long grooves 20 along an up-down direction, and the driving mechanism 40 can be used for driving the propping member 30 to move in the up-down direction, so that the wheelchair wheels 50 can be withdrawn from the limiting long grooves 20. Optionally, the lifting platform 10 is further provided with a slope 12 for the wheelchair to go in and out of the lifting platform 10, and the slope 12 extends obliquely downward from the upper surface 11 of the lifting platform 10.

When the wheelchair lifter is installed, the length directions of the two limiting long grooves 20 are consistent with the direction of the wheelchair entering and exiting the vehicle. Thus, when the disabled person gets ready to get on the vehicle, the lifting platform 10 can be lowered to a first preset position (i.e. a lower preset position) so as to move the wheelchair from the outside of the vehicle to the lifting platform 10, wherein the first preset position is, for example, a position where the lifting platform 10 is in contact with the ground, at this time, the wheelchair can be driven onto the lifting platform 10, and the two wheelchair wheels 50 of the wheelchair are respectively limited in the two limiting long grooves 20, so that the wheelchair can be locked. At this time, the abutting member 30 may be located at the lowest position (i.e., the initial position) on the lifting platform 10 to avoid the wheelchair wheel 50. The lift table 10 is then raised upwardly to a second predetermined position (i.e., an upper predetermined position), such as a position where the lift table 10 overlaps the door sill. Then, the driving mechanism 40 is started to drive the abutting piece 30 to move upwards to abut against the wheelchair wheel 50 so as to abut against and eject the wheelchair wheel 50 out of the limiting long groove 20, and the wheel is unlocked. Thus, the wheelchair can smoothly enter the vehicle. On the contrary, when the disabled prepares to get off the wheelchair, the wheelchair can be safely transferred by the limiting function of the limiting long groove 20 and the unlocking function of the abutting piece 30 and the driving mechanism 40.

It can be seen that in the wheelchair lift provided by the disclosure, the wheelchair can be locked by arranging the limiting long groove 20, the wheelchair is prevented from shifting in the lifting process, the safety is high, and the fear of disabled people can be eliminated. Moreover, by arranging the abutting part 30 and the driving mechanism 40, after the lifting platform 10 is lifted in place, the wheelchair can be unlocked timely and conveniently, the wheelchair can be conveniently moved away from the lifting platform 10, and the convenience is improved.

As shown in fig. 1, 5 and 6, in one embodiment, the side walls of the lift table 10 are configured as ramps 12 to facilitate the transfer of the wheelchair between the ground and the upper surface 11 of the lift table 10 via the ramps 12. In other embodiments of the present disclosure, straps may also be hinged to the platform 10, and may be lowered to create the incline 12 when it is desired to transfer the wheelchair between the ground and the platform 10, and may be retracted when not in use.

As shown in fig. 1, in one embodiment of the present disclosure, the end of the lifting platform 10 contacting the vehicle may not be provided with the inclined surface 12, and the upper surface 11 of the lifting platform 10 may be aligned with the overlapping position on the vehicle by adjusting the height of the lifting platform 10. Alternatively, in other embodiments of the present disclosure, the vehicle-contacting end of the lifting platform 10 may also be provided with the above-mentioned inclined surface 12.

It should be noted that the vehicle is only one of the applications of the wheelchair lifter, and the wheelchair lifter provided by the present disclosure may be applied to any other suitable objects, and the present disclosure is not limited thereto.

In the present disclosure, the number of the abutting member 30 is not limited, and may be single or plural. When the number of the abutting pieces 30 is single, the contact area between the abutting pieces 30 and the wheelchair wheel 50 can be increased appropriately, so as to abut against the wheelchair wheel 50 smoothly. As shown in fig. 1 and 3, in an embodiment of the present disclosure, two abutting pieces 30 may be provided, and include a first abutting piece 31 and a second abutting piece 32, and in each limiting long groove 20, the first abutting piece 31 and the second abutting piece 32 are arranged at intervals along a length direction of the limiting long groove 20. Thus, the stability of the abutting piece abutting against the wheelchair wheel 50 is favorably improved, and the two abutting pieces are arranged, so that the size of a single abutting piece is favorably reduced.

During specific work, the first abutting piece 31 and the second abutting piece 32 can move synchronously, so that the abutting stability of the abutting piece 30 on the wheelchair wheel 50 is further improved. Alternatively, the first abutting member 31 and the second abutting member 32 can be returned to their initial positions after acting on the wheelchair wheel 50. The initial positions of the first abutting piece 31 and the second abutting piece 32 are not limited in the present disclosure, as long as it is ensured that when the two abutting pieces are located at the initial positions, the limiting of the wheelchair wheel 50 in the limiting long groove 20 is not disturbed. Alternatively, in the embodiment shown in fig. 1 and 2, in which the limiting long groove 20 is a non-through groove, when the first abutting member 31 and the second abutting member 32 are located at the initial position, the upper end surfaces of the two abutting members are substantially flush with the bottom wall of the limiting long groove 20.

The wheelchair lifter comprises a first working mode and a second working mode, wherein in the first working mode, the upper end surface of the first abutting piece 31 is higher than the upper end surface of the second abutting piece 32, and the upper end surface of the second abutting piece 32 is flush with the upper surface 11 of the lifting platform 10; in the second working mode, the upper end surface of the first abutting piece 31 is lower than the upper end surface of the second abutting piece 32, and the upper end surface of the first abutting piece 31 is flush with the upper surface 11 of the lifting table 10.

When installed, the second abutting member 32 can be brought closer to the vehicle interior as shown in fig. 1 and 5. Thus, when the disabled person gets ready to get on the vehicle, the wheelchair wheel 50 is first driven from the ground into the long limit groove 20 of the pedal to be fixed, and then moves up along with the lifting platform 10. When the wheelchair ascends to a position along with the lifting platform 10, the first working mode is started, that is, the driving mechanism 40 is started to drive the first abutting piece 31 and the second abutting piece 32 to move upwards, optionally, the first abutting piece 31 and the second abutting piece 32 can move synchronously to improve the stability, and when the upper end surface of the second abutting piece 32 is flush with the upper surface of the lifting platform 10, the upward movement of the second abutting piece 32 can be stopped, but the first abutting piece 31 is continuously driven to move upwards. Thus, an actuating force (urging force) toward the vehicle interior is applied to the wheelchair by the first abutting member 31 to urge the wheelchair toward the vehicle interior.

When the disabled person is ready to get off the wheelchair, the second operating mode may be started, and after the wheelchair descends to the proper position along with the lifting platform, the driving mechanism 40 is started to drive the first abutting member 31 and the second abutting member 32 to move upwards at the same time, as shown in fig. 6, when the upper end surface of the first abutting member 31 is flush with the upper surface 11 of the lifting platform 10, the upward movement of the first abutting member 31 may be stopped, but the second abutting member 32 continues to be driven to move upwards. Thus, by the action of the second abutting member 32, an actuating force (pushing force) is applied to the wheelchair, away from the vehicle, to push the wheelchair toward the ground.

The positions of the first abutting piece 31 and the second abutting piece 32 can be exchanged, and the corresponding modes can be correspondingly changed.

In the present disclosure, the limiting long groove 20 may be a through groove or a non-through groove, that is, may be through or not through in the vertical direction of the lifting platform 10, as shown in fig. 2 and 4 to 6, in an embodiment of the present disclosure, the limiting long groove 20 is configured as a non-through groove, at this time, a through hole (not shown) for passing the abutting member 30 (including the first abutting member 31 and the second abutting member 32) may be disposed on the bottom wall of the limiting long groove 20, and the bottom wall of the limiting long groove 20 may be configured as an arc shape to fit the arc surface of the wheelchair wheel 50. Thus, when the wheelchair wheel 50 is limited in the limiting long groove 20, the arc-shaped bottom wall of the limiting long groove 20 can be fully contacted with the wheelchair wheel 50, the contact area is increased, and the wheelchair wheel 50 is prevented from being excessively extruded.

In the embodiment shown in fig. 2 and 3, the two limiting long grooves 20 have the same structure, and the limiting long grooves 20 completely fall in the area defined by the periphery of the upper surface 11 of the lifting platform 10, and have two opposite side walls in the width direction of the limiting long grooves.

As shown in fig. 4, in another embodiment of the present disclosure, the structure of one of the limiting long grooves 20 is the same as that of the limiting long groove 20 of the embodiment shown in fig. 2 and 3, but the other limiting long groove 20 has only one side wall, that is, in this embodiment, the side wall of the other limiting long groove 20 extends to the lift table 10 in the width direction. For convenience of description, the limiting long groove 20 is referred to as an open limiting long groove. By arranging one limiting long groove 20 as an open limiting long groove as shown in fig. 4, in the present embodiment, the distance defined by the two limiting long grooves 20 in the width direction of the lifting platform 10 is adjustable, and wheelchairs with different wheel pitches can be considered, thereby facilitating the increase of the universality of the wheelchair lifter. It is understood that, in the embodiment shown in fig. 4, the width of the head 32 of the abutting member 30 in the open-type limiting long groove can be enlarged appropriately to fit the width of the open-type limiting long groove. Therefore, the propping pieces 30 positioned in the open type limiting long grooves can work normally for wheelchairs with different wheel pitches.

In order to accommodate wheelchairs of different track widths in the present disclosure, in other embodiments, the distance of the two elongated slots 20 in the width direction of the platform 10 may be made adjustable. Therefore, according to the wheel track of different wheelchairs, the distance between the two limiting long grooves 20 can be properly increased or decreased, so that the wheels of the wheelchairs with different wheel tracks can be limited in the two limiting long grooves 20. Specifically, the lifting platform 10 may be divided into two slidably connected modules along the width direction thereof, and the two limiting long grooves 20 are located on different modules. Meanwhile, each module is correspondingly provided with a propping piece 30 and a driving mechanism. Thus, the distance between the two modules can be adjusted, namely the distance between the two limiting long grooves 20 can be adjusted, so that the wheelchair can adapt to wheelchairs with different wheel tracks.

In the present disclosure, in order to avoid the impact on the two due to the contact between the abutting member 30 and the wheelchair wheel 50, a buffer structure may be provided at the contact portion between the two. Alternatively, as shown in fig. 6, in an embodiment of the present disclosure, the abutting member 30 includes a top rod portion 31 and a top head 32 disposed at an upper end of the top rod portion 31, and the top head 32 is an elastic top head 32, that is, the top head 32 is made of an elastic material, and a specific material may be rubber or the like, which is not limited by the present disclosure.

In other embodiments of the present disclosure, the elastic layer may be provided only on the surface of the head 32 that contacts the wheelchair wheel 50, and other portions of the head 32 may not be made of an elastic material.

In the present disclosure, the depth and width of the stopper long groove 20 are not particularly limited, and may be set to any appropriate values. For example, the width of the elongated restraining groove 20 may be designed to be slightly larger than the thickness of the wheelchair wheel, so as to ensure that the wheel can smoothly exit from the elongated restraining groove 20 while avoiding the wheel swinging in the thickness direction.

The present disclosure does not limit the specific shape of the lift table 10. Alternatively, in an embodiment of the present disclosure, the lifting platform 10 may be formed in a rectangular parallelepiped structure, and the length direction of the long restraining groove 20 coincides with the length direction of the rectangular parallelepiped structure.

In the present disclosure, the first abutting member 31 and the second abutting member 32 may share the same driving mechanism, or may correspond to one driving mechanism, and when one driving mechanism is adopted for each of the two, the respective driving mechanisms may be the driving mechanisms with the same structural type, or may be the driving mechanisms with different structural types, for example, one driving mechanism is driven by a motor, and the other driving mechanism is driven by a hydraulic pressure. As shown in fig. 1, 5 and 6, in one embodiment of the present disclosure, in consideration of simplifying the structure and the like, the first abutting member 31 and the second abutting member 32 may have one driving mechanism 40 each, and the two driving mechanisms 40 are the same driving mechanism 40.

The present disclosure does not limit the specific structure of the drive mechanism 40. Alternatively, as shown in fig. 6, in an embodiment of the present disclosure, the driving mechanism 40 is a linear motor 41, a push rod 411 of the linear motor 41 is arranged in the up-down direction, and the push rod 411 is connected to the lower end of the abutting member 30. In this way, the push rod 411 of the linear motor 41 can extend and retract in the vertical direction, so that the abutting piece 30 can extend and return in the vertical direction.

Alternatively, as shown in fig. 6, the push rod 411 may be connected to the abutting member 30 by using the coupling 42. In other embodiments of the present disclosure, the push rod 411 and the top rod portion 31 of the abutting member 30 may be connected by a pin key.

In addition, in other embodiments of the present disclosure, the push rod 411 of the linear motor 41 may be directly configured as the above-described abutting piece 30.

Alternatively, in another embodiment of the present disclosure, the abutting member 30 is configured as a multi-stage hydraulic cylinder structure, and the driving mechanism 40 includes a hydraulic pump which supplies pressure oil to the multi-stage hydraulic cylinder structure to achieve expansion and contraction of the multi-stage hydraulic cylinder structure, thereby achieving movement of the abutting member 30 in the up-down direction.

Specifically, in two adjacent casings of the abutting member 30, the casing at the next stage is a piston rod of the casing at the previous stage (not shown), the casing at the previous stage is a cylinder body of the casing at the next stage, and two ends of the multi-stage hydraulic cylinder structure may have an oil port a and an oil port B (not shown in the figure). In this embodiment, when the abutting member 30 needs to be lifted, oil can be fed from the port a, and when oil returns from the port B, the first-stage piston with a large effective acting area is pushed to move, and then the second-stage piston with a small effective acting area is pushed to move, so that the following sleeves are sequentially pushed until the multistage hydraulic oil cylinder structure extends to the required height. When the abutting piece 30 needs to be retracted, oil can be fed from the port B, and oil can be returned from the port A, so that the sleeves at all stages are sequentially retracted until the abutting piece 30 is retracted to a preset position.

The multistage hydraulic cylinder is characterized in that: the working stroke can be very long, and the working stroke can be shortened when the working stroke does not work. The device is suitable for occasions with limited installation space and long stroke requirements. The working principle and structure of the multi-stage oil cylinder are well known to those skilled in the art, and are not described in detail herein.

In the present disclosure, the wheelchair lift may further include a controller (not shown) and a sensor (not shown) electrically connected to the controller, wherein the sensor is used for detecting the height position of the lift platform 10, and the controller controls the operation of the driving mechanism 40 according to the detection result of the sensor, so as to drive the abutting member 30 to move upwards or reset. Therefore, the wheelchair can be unlocked in time, and the wheelchair is convenient and fast to use.

As an alternative embodiment, in operation, after the sensor detects that the lifting platform 10 is lifted to the abutting position with the vehicle door, the driving mechanism 40 may be activated to operate after a preset time (for example, 5s), so as to implement the above-mentioned first operation mode, which facilitates the wheelchair to safely and smoothly enter the vehicle from the lifting platform 10. When the sensor detects that the lifting platform 10 is lowered to contact with the bottom surface, the driving mechanism 40 can be started to work after a preset time (for example, 5s), so that the second working mode is realized, and the wheelchair can be safely and smoothly moved out of the lifting platform 10 to the ground.

In other embodiments of the present disclosure, a control terminal such as a remote controller may be used to activate the controller, so as to flexibly select the time for activating the driving mechanism 40 according to the required time.

According to another aspect of the present disclosure, there is provided a method for the wheelchair lift described above, the method comprising:

the getting-off method comprises the following steps:

determining the position of the lifting platform 10;

when the lifting platform 10 is lowered to the first preset position, the driving mechanism 40 drives the abutting piece 30 to move upwards in the long limiting groove 20, so as to abut the wheelchair wheel 50 out of the long limiting groove 20 and enable the wheelchair to move towards the direction far away from the interior of the vehicle;

the boarding method comprises the following steps:

the lifting platform 10 is positioned at a first preset position;

moving the wheelchair to the lifting platform 10, and limiting the wheelchair wheels 50 in the limiting long grooves 20;

determining the position of the lifting platform 10;

when the lifting platform 10 is lifted to the second preset position, the driving mechanism 40 drives the abutting piece 30 to move upwards in the long limiting groove 20, so as to abut the wheelchair wheel 50 out of the long limiting groove 20 and move the wheelchair towards the direction of entering the interior of the vehicle.

In the boarding process, first, the lift table 10 may be located at a first preset position (lower preset position). Here, the first preset position is, for example, a position where the lift table 10 is in contact with the ground;

the wheelchair is then moved to the lifting platform 10 and the wheelchair wheels 50 are restrained within the elongated restraining slots 20. Optionally, at this time, the first abutting piece 31 and the second abutting piece 32 may be in the initial positions; then, when the lifting platform 10 is lifted to a second preset position (upper preset position), here, the second preset position is, for example, a position where the lifting platform 10 is overlapped with a door sill; the driving mechanism 40 can drive the propping piece 30 to move upwards in the limiting long groove 20 so as to prop the wheel of the wheelchair out of the limiting long groove 20 and enable the wheelchair to move towards the direction entering the interior of the vehicle;

in the unloading process, firstly, the lifting platform 10 can be positioned at a second preset position; the wheelchair is then removed from the vehicle interior to the lift table 10 and restrained within the restraining elongated slots 20. Optionally, at this time, the first abutting piece 31 and the second abutting piece 32 may be in the initial positions; when the lifting platform 10 is lowered to the first predetermined position, the driving mechanism 40 can drive the abutting member 30 to move upward in the long limiting groove 20, so as to abut the wheelchair wheel 50 out of the long limiting groove 20 and move the wheelchair toward a direction away from the interior of the vehicle.

It is understood that in the present disclosure, there may be various methods of determining the position of the lift table 10, for example, providing a position sensor at a corresponding position of the vehicle body and/or the lift table 10 to detect the position of the lift table 10.

In the present disclosure, after the wheelchair is stopped in the stopper elongated groove 20, the lifting/lowering of the lifting/lowering base 10 may be performed by manually pressing a button, or the lifting/lowering base 10 may be automatically controlled by a controller. For example, a pressure sensor may be disposed in the long limit groove 20 to sense the wheelchair wheel 50, and when the controller determines that the wheelchair wheel 50 is located at the limit position based on the detected information of the pressure sensor, the controller may control the corresponding actuator to move the lifting platform 10 up and down.

Optionally, in an embodiment of the present disclosure, when the abutting part 30 includes the first abutting part 31 and the second abutting part 32, and in each limiting long groove 20, the first abutting part 31 and the second abutting part 32 are arranged at intervals along the length direction of the limiting long groove 20, the method of abutting the wheelchair wheel 50 against the limiting long groove 20 and moving the wheelchair toward the direction entering the vehicle interior may include:

the first abutting piece 31 and the second abutting piece 32 are driven to move upwards at the same time, when the upper end surfaces of the first abutting piece 31 and the second abutting piece 32 are flush with the upper surface 11 of the lifting platform 10, the upward movement of the second abutting piece 32 is stopped, and the first abutting piece 31 continues to move upwards, so that a pushing force (namely a starting force) for enabling the wheelchair to move towards the direction of entering the interior of the vehicle is provided.

Optionally, when the abutting part 30 includes the first abutting part 31 and the second abutting part 32, and the first abutting part 31 and the second abutting part 32 are arranged at intervals along the length direction of the long limiting groove 20 in each long limiting groove 20, the method of abutting the wheelchair wheel 50 out of the long limiting groove 20 and moving the wheelchair toward the direction away from the interior of the vehicle may include:

the first abutting piece 31 and the second abutting piece 32 are driven to move upwards at the same time, when the upper end surfaces of the first abutting piece 31 and the second abutting piece 32 are flush with the upper surface 11 of the lifting platform 10, the upward movement of the first abutting piece 31 is stopped, and the second abutting piece 32 continues to move upwards, so that a pushing force (namely, a starting force) for enabling the wheelchair to move towards the direction far away from the interior of the vehicle is provided.

It is understood that, in other embodiments of the present disclosure, when the first abutting member 31 and the second abutting member 32 are driven to move up and down, they may be driven simultaneously or at a certain time interval, and they may move at the same speed or at different speeds, which is not limited by the present disclosure.

In other embodiments of the present disclosure, the abutting pieces can provide the wheelchair wheel 50 with the pushing force toward the wheel or away from the vehicle by controlling the moving speed of the first abutting piece 31 and the second abutting piece 32. For example, in the step of pushing the wheelchair wheel 50 out of the limiting slot 20 and moving the wheelchair toward the direction of entering the vehicle, the upward moving speed of the first pushing member 31 and the second pushing member 32 can be reasonably controlled, so that the speed of the first pushing member 31 is greater than that of the second pushing member 32, and when the upper end surface of the second pushing member 32 is flush with the upper surface 11 of the lifting platform 10, the first pushing member 31 is just at the highest position protruding from the upper surface 11 of the lifting platform 10. Thus, the first abutting member 31 can also provide a pushing force to the wheelchair wheel 50 to enter the vehicle. Conversely, by properly designing the speeds of the first abutting part 31 and the second abutting part 32, the second abutting part 32 can provide a pushing force for the wheelchair wheel 50 to be far away from the inside of the vehicle.

According to still another aspect of the present disclosure, there is provided a vehicle including the wheelchair lifter described above, the wheelchair lifter further including a connecting portion on which the lifting platform 10 is movably provided in an up-down direction, the connecting portion being connected to a body of the vehicle. Like this, through integrated to the vehicle with the wheelchair lift, make things convenient for disabled personage's getting on or off the bus, increased the performance of vehicle.

The present disclosure does not limit the specific connection relationship between the lifting platform 10 and the connection portion. Alternatively, in one embodiment, a guide rail may be disposed on the connecting portion, a sliding groove may be disposed on the lifting platform, the two are in sliding fit, and a power transmission mechanism for driving the two to slide relatively is disposed. In another embodiment of the present disclosure, the lifting platform 10 may be connected to the connecting portion by using a connecting rod, and both ends of the connecting rod are respectively connected to the connecting portion and the lifting platform 10. In other embodiments, a scissor mechanism may be used to lift the connection portion from the lifting platform 10.

Furthermore, a storage cavity can be formed in the vehicle, when the wheelchair lifter is not used, the upgrading machine is stored in the storage cavity, and when the wheelchair lifter is required to be used, the wheelchair lifter is moved out of the storage cavity, so that the appearance of the vehicle is not influenced, and the space is saved. Alternatively, a storage chamber may be provided at a lower side of the floor panel of the vehicle, the storage chamber corresponding to a position where the passenger gets on or off the vehicle, and the coupling portion may be slidably provided in the storage chamber.

The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.

In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.

Claims (10)

1. The wheelchair lifter is characterized by comprising a lifting platform (10), an abutting part (30) and a driving mechanism (40), wherein two limiting long grooves (20) are oppositely arranged on the upper surface (11) of the lifting platform (10), the two limiting long grooves (20) are respectively used for accommodating two wheelchair wheels (50) of a limiting wheelchair, and the driving mechanism (40) can drive the abutting part (30) to move in the limiting long grooves (20) along the vertical direction so that the wheelchair wheels (50) can be withdrawn from the limiting long grooves (20).

2. The wheelchair lift of claim 1, wherein the abutting member (30) comprises a first abutting member (31) and a second abutting member (32), and the first abutting member (31) and the second abutting member (32) are arranged at intervals along the length direction of the limiting long groove (20) in each limiting long groove (20).

3. The wheelchair lift according to claim 2, characterized in that it has a first operating mode in which the upper end face of the first abutting piece (31) is higher than the upper end face of the second abutting piece (32), the upper end face of the second abutting piece (32) being flush with the upper surface (11) of the lifting platform (10); in the second working mode, the upper end surface of the first abutting piece (31) is flush with the upper surface (11) of the lifting platform (10), and the upper end surface of the first abutting piece (31) is lower than the upper end surface of the second abutting piece (32).

4. The wheelchair lift of claim 1, characterized in that the limiting long groove (20) is configured as a non-through groove or a through groove, when the limiting long groove (20) is configured as a non-through groove, a through hole for the ejection member (30) to pass through is provided on the bottom wall (21) of the limiting long groove (20), and the bottom wall (21) of the limiting long groove (20) is configured as an arc shape to fit with the arc surface of the wheelchair wheel (50).

5. The wheelchair lift in accordance with one of claims 1 to 4, characterised in that the distance of the two limiting elongated slots (20) in the width direction of the lifting platform (10) is adjustable to accommodate wheelchairs of different track widths.

6. The wheelchair lift as claimed in any of claims 1 to 4, characterised in that one of the spacing slots (20) extends in its width direction to the side wall of the lifting platform (10) to accommodate wheelchairs of different track widths.

7. The wheelchair lift of any one of claims 1 to 4, characterised in that the counter part (30) comprises a top rod part (33) and a top head (34) arranged at the upper end of the top rod part (33), the top head (34) being an elastic top head.

8. The wheelchair lift as claimed in one of claims 1 to 4, characterised in that the drive mechanism (40) comprises a linear motor (41), the push rod (411) of the linear motor (41) being arranged in the up-down direction, the push rod (411) being connected to the lower end of the counter part (30).

9. The wheelchair lift as claimed in any one of claims 1 to 4, further comprising a controller and a sensor electrically connected to the controller, the sensor being configured to detect a height position of the lifting platform (10), the controller controlling the operation of the drive mechanism (40) based on a detection result of the sensor.

10. A vehicle, characterized in that it comprises a wheelchair lift according to any one of claims 1-9, which wheelchair lift further comprises a connection part on which the lifting platform (10) is arranged movably in the up-down direction, said connection part being connected to the body of the vehicle.

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