Wheelchair facilitating getting on and off

Abstract

The utility model provides a wheelchair facilitating getting on and off. The wheelchair comprises a frame body, a seat plate, a moving mechanism, a transferring mechanism, a lifting mechanism and a controller. The moving mechanism and the transferring mechanism are arranged on the frame body. The moving mechanism drives the wheelchair to move. The transferring mechanism comprises multiple sections of arm rods, the multiple sections of arm rods are rotationally connected, the transferring mechanism is detachably connected with the seat plate, and the transferring mechanism enables the seat plate to stretch out of the outer side of the frame body; the lifting mechanism is connected between the frame body and the transfer mechanism; the controller is connected with the moving mechanism, the transferring mechanism and the lifting mechanism. A user and the seat plate can be conveniently transferred to a vehicle through the transfer mechanism, and then the seat plate is detached; or the chair plate is recovered to the wheelchair main body, and the chair plate is connected with the transfer mechanism; and the convenience of getting on and off the vehicle by the user who is inconvenient to move is improved.

Description

Technical Field

[0001] This application relates to the field of wheelchairs, and more particularly to a wheelchair that facilitates getting in and out of a vehicle. Background Technology

[0002] Currently, wheelchairs are mainly used to get in and out of vehicles in the following ways: (1) using a detachable flatbed as a ramp to push the wheelchair into the vehicle; (2) extending a lifting platform from the car to lift the wheelchair into the car; (3) manually carrying the user from the wheelchair to the car seat. The first and second methods require additional wheelchair space inside the car, while the third method is inconvenient for getting in and out of the vehicle. Utility Model Content

[0003] The following is an overview of the subject matter described in detail herein. This overview is not intended to limit the scope of the claims.

[0004] The purpose of this application is to at least partially solve one of the technical problems existing in the related technologies. The embodiments of this application provide a wheelchair that facilitates getting on and off a vehicle, thereby improving the convenience of getting on and off a vehicle.

[0005] An embodiment of this application provides a wheelchair that facilitates getting in and out of a vehicle, comprising:

[0006] Frame;

[0007] A seat panel for a user to sit on;

[0008] A mobility mechanism is provided on the frame and is used to drive the wheelchair to move.

[0009] A transfer mechanism is provided on the frame, the transfer mechanism includes multiple arm sections rotatably connected to each other, the transfer mechanism is detachably connected to the seat plate, and the transfer mechanism is used to extend the seat plate out of the outside of the frame;

[0010] A lifting mechanism is provided, which is connected between the frame and the transfer mechanism.

[0011] According to an embodiment of this application, the arm includes a first arm and a second arm. The first arm is connected to the frame via a first revolute joint, the first arm is connected to the second arm via a second revolute joint, and the second arm is connected to the seat plate via a third revolute joint.

[0012] According to an embodiment of this application, when the seat plate is located inside the frame, the first arm and the second arm are folded together, and the first arm and the second arm are located on the same side of the seat plate.

[0013] According to an embodiment of this application, when the seat plate is located inside the frame, the first arm and the second arm are arranged perpendicularly, the first arm is located behind the seat plate, and the second arm is located on the left or right side of the seat plate.

[0014] According to an embodiment of this application, the end of the transfer mechanism connected to the seat plate is provided with a first insertion plate, the first insertion plate is provided with an insertion hole, the seat plate is provided with a hook, and the hook is inserted into the insertion hole.

[0015] According to an embodiment of this application, a second insertion plate is provided at one end of the transfer mechanism connected to the seat plate. The second insertion plate is provided with a round hole, and the seat plate is provided with a column member, which is inserted into the round hole.

[0016] According to an embodiment of this application, the frame is provided with a telescopic rod, the end of which is connected to a support wheel; the telescopic rod is used to extend the support wheel outward from the outside of the frame.

[0017] According to an embodiment of this application, the moving mechanism is provided with a drive wheel and a follower wheel, and the drive wheel is connected to a driver.

[0018] According to an embodiment of this application, the seat panel is provided with a backrest, and the backrest is rotatably connected to the seat panel.

[0019] According to an embodiment of this application, the controller is connected to the moving mechanism, the transferring mechanism, and the lifting mechanism; the controller is connected to an environmental sensor, which is used to acquire environmental information around the wheelchair.

[0020] The above solution has at least the following beneficial effects: When a user needs to board, the user sits on the seat board and moves to the vehicle via a moving mechanism. A lifting mechanism raises and lowers the transfer mechanism and seat board to a suitable height. Multiple arm sections rotate and cooperate to extend the seat board outwards from the frame, allowing the seat board and the user seated on it to enter the vehicle through the door. The seat board is then detached from the transfer mechanism, completing the boarding process. Additionally, the rest of the wheelchair, except for the seat board, can be placed at the rear of the vehicle for easy transport. When a user needs to disembark, the multiple arm sections of the transfer mechanism extend outwards from the frame and into the vehicle body, connecting the transfer mechanism to the seat board. The multiple arm sections rotate and cooperate to retract the seat board and the user seated on it from the vehicle through the door onto the wheelchair. The lifting mechanism raises and lowers the transfer mechanism and seat board to a suitable height, completing the disembarkation process. This eliminates the need for additional space inside the vehicle to accommodate the wheelchair, significantly improving the convenience for users with mobility impairments when getting in and out of the vehicle. Attached Figure Description

[0021] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0022] Figure 1 It is a structural diagram of a wheelchair that facilitates getting in and out of a vehicle;

[0023] Figure 2 This is a structural diagram of the transfer mechanism and the lifting mechanism;

[0024] Figure 3 This is a structural diagram of the telescopic rod;

[0025] Figure 4 This is a diagram showing the wheelchair in the state of being used for getting on and off a vehicle, with the transfer mechanism and seat combined.

[0026] Figure 5 This is a diagram showing the wheelchair in a state where the transfer mechanism and seat are separated when the wheelchair is used for getting on and off the vehicle.

[0027] Figure 6 This is a diagram showing the use of a wheelchair for getting in and out of bed. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0029] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, or the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0030] The embodiments of this application will be further described below with reference to the accompanying drawings.

[0031] An embodiment of this application provides a wheelchair that facilitates getting in and out of a vehicle.

[0032] Reference Figure 1 The wheelchair includes: frame 100, seat 200, moving mechanism 300, transfer mechanism 500, lifting mechanism 400 and controller.

[0033] The wheelchair is provided with a seat 200 for the user to sit on; a moving mechanism 300 is mounted on the frame 100 and is used to move the wheelchair; a transfer mechanism 500 is mounted on the frame 100 and includes multiple arm sections that are rotatably connected to each other; the transfer mechanism 500 is detachably connected to the seat 200 and is used to extend the seat 200 out of the frame 100; a lifting mechanism 400 is connected between the frame 100 and the transfer mechanism 500; and a controller is connected to the moving mechanism 300, the transfer mechanism 500, and the lifting mechanism 400.

[0034] In this embodiment, when a user needs to get into the vehicle, the user sits on the seat 200 and moves to the side of the vehicle via the moving mechanism 300. The lifting mechanism 400 raises and lowers the transfer mechanism 500 and the seat 200 to a suitable height. The multi-section boom rotates and cooperates with each other to extend the seat 200 out of the frame 100. The seat 200 and the user sitting on the seat 200 are then extended into the vehicle through the vehicle door. The seat 200 is then detached from the transfer mechanism 500, completing the getting-in process. In addition, the rest of the wheelchair, except for the seat 200, can be placed at the rear of the vehicle for easy transport of the wheelchair.

[0035] When the user needs to get off the vehicle, the multi-section boom of the transfer mechanism 500 extends to the outside of the frame 100 and into the vehicle body, connecting the transfer mechanism 500 with the seat 200. The multi-section boom rotates and works together to retrieve the seat 200 and the user sitting on the seat 200 from inside the vehicle to the wheelchair through the vehicle door. The lifting mechanism 400 then raises and lowers the transfer mechanism 500 and the seat 200 to a suitable height, completing the disembarkation action.

[0036] There's no need to create extra space inside the car to accommodate a wheelchair; the user can sit in the car seat. This wheelchair improves the ease of getting in and out of the vehicle for users with mobility impairments, allowing for free and smooth transfers between the car and the wheelchair.

[0037] The seat panel 200 can be equipped with support brackets or other support mechanisms. These support mechanisms can be placed on the floor of the rear seat of the vehicle or on other load-bearing parts of the vehicle body, effectively preventing the wheelchair from tipping over during transfer.

[0038] The mobility mechanism 300 is mounted on the chassis of the frame 100. The mobility mechanism 300 can be electric or equipped with manual wheels. The electric mobility mechanism 300 can be controlled by the user via a control handle or by a control device located at the rear of the wheelchair. A control device is installed at the rear of the wheelchair and can be operated by someone other than the user. The control handle is wirelessly connected to the wheelchair's controller.

[0039] The moving mechanism 300 is equipped with drive wheels 310 and follower wheels 320, with the drive wheels 310 connected to the driver. Specifically, it adopts a moving chassis structure with two rear hub motors driving the wheels 310 and five front follower wheels 320.

[0040] Reference Figure 3 The chassis of the frame 100 is equipped with a telescopic rod 600, the end of which is connected to the support wheel 610. The telescopic rod 600 is used to extend the support wheel 610 outward from the frame 100. This extended structure provides a larger ground contact range, effectively preventing the wheelchair from tipping over during transfer. When the transfer mechanism 500 moves the seat 200 to the left, the telescopic rod 600 extends to the left; when the transfer mechanism 500 moves the seat 200 to the right, the telescopic rod 600 extends to the right.

[0041] Reference Figure 2 The lifting mechanism 400 uses an electric push rod 410 as the lifting power. The lifting mechanism 400 is fixed to the chassis by a fixed column 420. The electric push rod 410 can push the lifting slider to move up and down, thereby causing the transfer mechanism 500 and the seat plate 200 connected to the lifting slider to move up and down.

[0042] To withstand the enormous overturning moment, heavy-duty guide rails 430 are installed between the fixed column 420 and the lifting slider. Two pairs of heavy-duty guide rails 430 are used to accommodate changes in the direction of the overturning moment during the transfer of the seat plate 200, and these two pairs of heavy-duty guide rails 430 are perpendicular to each other.

[0043] The lifting mechanism 400 allows the passenger to be lifted from the wheelchair to a height higher than the car seat, and then lowered so that the seat panel 200 and backrest 210 are placed on the car seat. The lifting device can be manual or electric.

[0044] The lifting mechanism 400 allows users to adapt to different scenarios, such as tables of different heights.

[0045] The lifting mechanism 400 can handle both ordinary cars and larger vehicles such as vans. For the former, the lifting distance of the lifting mechanism 400 is required to be smaller than that for the latter.

[0046] The boom includes a first boom 510 and a second boom 520. The first boom 510 is connected to the frame 100 through a first revolute joint 530, and the first boom 510 is connected to the second boom 520 through a second revolute joint 540. The second boom 520 is connected to the seat plate 200 through a third revolute joint.

[0047] In one aspect, the transfer mechanism 500 is mainly located on the left or right side of the seat plate 200. When the seat plate 200 is located inside the frame 100, the first arm 510 and the second arm 520 are folded together, and the first arm 510 and the second arm 520 are located on the same side of the seat plate 200.

[0048] On the other hand, the transfer mechanism 500 is mainly located on the rear side of the seat plate 200. When the seat plate 200 is located inside the frame 100, the first arm 510 and the second arm 520 are arranged perpendicularly, with the first arm 510 located on the rear side of the seat plate 200 and the second arm 520 located on the left or right side of the seat plate 200.

[0049] The first rotary joint 530, the second rotary joint 540, and the third rotary joint all include a rotating shaft and a motor. The motor drives the rotating shaft to rotate, thereby realizing the rotation of the first boom 510, the second boom 520, and the frame 100. When the rotary joints of the transfer mechanism 500 are driven by a power device, the power can be a combination of a motor and a reducer, or it can be driven by an electric push rod 410, a hydraulic cylinder, etc. Each rotary joint also uses an encoder to measure the angle of each joint and transmits the relevant angle data to the control system.

[0050] The transfer mechanism 500 and the seat plate 200 are detachably connected through a coupling mechanism.

[0051] The transfer mechanism 500 enables the seat plate 200, along with the user, to be transferred between the wheelchair and the car seat. The transfer mechanism 500 has three degrees of freedom: forward and backward movement, left and right movement, and rotation about a vertical axis.

[0052] In practical applications, wheelchairs are often parked next to the open rear door of a car. Since the door cannot usually be fully opened, the seat panel 200 and the user cannot be directly moved to achieve a smooth transfer between the wheelchair and the car seat. Therefore, a three-degree-of-freedom transfer mechanism 500 is required to achieve the transfer.

[0053] The transfer mechanism 500 can be a single-arm structure, or a structure consisting of a rotating joint and a support arm, or a double-arm structure, thereby improving the overall rigidity of the support arm.

[0054] The transfer mechanism 500's rotating joints can be powered or unpowered. When powered, multiple joints can be manually operated to achieve forward and backward movement, left and right movement, and rotation around a vertical axis, thus enabling transfer between car seats and wheelchairs. Alternatively, sensors such as binocular cameras can detect the surrounding space and automatically plan a path for automated transfer. When unpowered, the resistance torque on each rotating joint is small, allowing for manual transfer.

[0055] Reference Figure 4 and Figure 5 In one aspect, the connecting mechanism includes a first insertion plate and a seat panel connector 551, with the seat panel connector 551 equipped with a hook. The end of the transfer mechanism 500 connected to the seat panel 200 is provided with a first insertion plate, which has an insertion hole. The seat panel 200 is equipped with a hook, which is inserted into the insertion hole. The hook extends downwards. When the seat panel 200 and the transfer mechanism 500 are in a separated state, and it is necessary to connect the seat panel 200 to the transfer mechanism 500, the seat panel 200 is placed on the car seat and is stationary. The lifting mechanism 400 drives the transfer mechanism 500 and the connecting mechanism to rise, causing the hook to insert into the insertion hole, thereby connecting the transfer mechanism 500 and the seat panel 200 together. When the seat panel 200 is engaged with the transfer mechanism 500, and it is necessary to separate the seat panel 200 from the transfer mechanism 500, the seat panel 200 is placed on the car seat. The lifting mechanism 400 drives the transfer mechanism 500 and the engagement mechanism to descend, causing the hook to disengage from the insertion hole, thereby separating the transfer mechanism 500 from the seat panel 200.

[0056] Understandably, the connecting mechanism also includes a locking mechanism, which can be a threaded locking mechanism, a snap-locking mechanism, etc. The locking mechanism secures the first insertion plate and the hook to prevent accidental detachment.

[0057] On the other hand, the connecting mechanism includes a second insertion plate and a seat panel connector 551, with the seat panel connector 551 having a post. The end of the transfer mechanism 500 connected to the seat panel 200 has a second insertion plate with a circular hole, and the seat panel 200 has a post inserted into the circular hole. The post extends downwards. When the seat panel 200 and the transfer mechanism 500 are separated, and it is necessary to connect the seat panel 200 to the transfer mechanism 500, the seat panel 200 is placed on the car seat and is stationary. The lifting mechanism 400 drives the transfer mechanism 500 and the connecting mechanism to rise, causing the post to insert into the circular hole, thereby connecting the transfer mechanism 500 and the seat panel 200 together. When the seat panel 200 is engaged with the transfer mechanism 500, and it is necessary to separate the seat panel 200 from the transfer mechanism 500, the seat panel 200 is placed on the car seat. The lifting mechanism 400 drives the transfer mechanism 500 and the engagement mechanism to descend, causing the column to disengage from the round hole, thereby separating the transfer mechanism 500 from the seat panel 200.

[0058] The seat plate 200 can rotate around the column by the cooperation of the column and the round hole.

[0059] The frame 100 and seat panel 200 are connected and separated by a connecting mechanism. When connected by the connecting mechanism, sufficient rigidity and strength can be provided for the seat panel 200 and backrest 210, while also achieving ease of separation.

[0060] The seat panel 200 is provided with a backrest 210, which is rotatably connected to the seat panel 200. When transferring the user from the wheelchair to the bed, the backrest 210 is rotated so that the backrest 210 and the seat panel 200 are on the same plane, allowing the user to lie flat on the plane formed by the seat panel 200 and the backrest 210.

[0061] Reference Figure 6 When a user needs to get into bed, the user sits on the seat 200 and moves to the bedside via the moving mechanism 300. The lifting mechanism 400 raises and lowers the transfer mechanism 500 and the seat 200 to a suitable height. The multi-section arm rotates and cooperates to extend the seat 200 out of the frame 100, transferring the seat 200 and the user sitting on it to the bed. The seat 200 is then detached from the transfer mechanism 500, completing the getting-in action. The backrest 210 is rotated so that the backrest 210 and the seat 200 are on the same plane.

[0062] When the user needs to get out of bed, the backrest 210 is rotated so that it is perpendicular to the seat board 200. The multi-section arm of the transfer mechanism 500 extends to the outside of the frame 100, connecting the transfer mechanism 500 to the seat board 200. The multi-section arm rotates and cooperates with each other to retrieve the seat board 200 and the user sitting on the seat board 200 onto the wheelchair. The lifting mechanism 400 raises and lowers the transfer mechanism 500 and the seat board 200 to a suitable height, completing the getting out of bed action.

[0063] The controller is connected to the moving mechanism 300, the transferring mechanism 500, and the lifting mechanism 400; the controller is also connected to an environmental sensor, which is used to acquire environmental information around the wheelchair. Based on the environmental information acquired by the environmental sensor, the controller calculates the control signal for the wheelchair and sends the control signal to the moving mechanism 300, the transferring mechanism 500, and the lifting mechanism 400 to control their movement.

[0064] The movement and transfer of the wheelchair can also be remotely controlled, and two-way interactive audio and video communication with the passenger can be achieved through devices such as cameras and displays. The wheelchair can achieve automatic navigation and movement, and through the matching LiDAR, binocular cameras and other equipment, it can automatically stop next to the vehicle seat, deploy the support mechanism, then achieve automatic transfer, and automatically disengage the connecting mechanism.

[0065] When the user gets out of the car, the transfer mechanism 500 can be connected to the connecting mechanism by manual operation, or it can be connected automatically by detection equipment.

[0066] The wheelchair has a transfer and lifting device, so it can be used in various scenarios such as going to the toilet, entering the bathtub in a lying or sitting position, and taking a shower in a semi-sitting and semi-standing position.

[0067] The lifting mechanism 400 and the telescopic rod 600 are connected to the frame 100 by a convenient fastening and loosening mechanism, which facilitates disassembly and assembly and allows them to be placed separately after disassembly.

[0068] The above is a detailed description of the preferred embodiments of this application, but this application is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A wheelchair facilitating getting on and off, characterized in that, The utility model relates to a wheelchair, including: A frame body; A seat plate for a user to sit on; A moving mechanism provided on the frame body, the moving mechanism being used to drive the wheelchair to move; A transfer mechanism provided on the frame body, the transfer mechanism including a plurality of arm links, the plurality of arm links being rotatably connected to each other, the transfer mechanism being detachably connected to the seat plate, the transfer mechanism being used to extend the seat plate outside the frame body; A lifting mechanism connected between the frame body and the transfer mechanism.

2. The easy-in and easy-out wheelchair according to claim 1, wherein The arm links include a first arm link and a second arm link, the first arm link being connected to the frame body through a first revolute pair, the first arm link being connected to the second arm link through a second revolute pair, and the second arm link being connected to the seat plate through a third revolute pair.

3. The easy-in and easy-out wheelchair according to claim 2, wherein When the seat plate is located inside the frame body, the first arm link and the second arm link are folded and arranged, and the first arm link and the second arm link are located on the same side of the seat plate.

4. The easy-in and easy-out wheelchair according to claim 2, wherein When the seat plate is located inside the frame body, the first arm link and the second arm link are arranged perpendicularly, the first arm link is located on the back side of the seat plate, and the second arm link is located on the left side or the right side of the seat plate.

5. The easy-in and easy-out wheelchair according to claim 1, wherein One end of the transfer mechanism connected to the seat plate is provided with a first jack plate, the first jack plate is provided with a jack, the seat plate is provided with a hook, and the hook is inserted into the jack.

6. The easy-in and easy-out wheelchair according to claim 1, wherein One end of the transfer mechanism connected to the seat plate is provided with a second jack plate, the second jack plate is provided with a round hole, the seat plate is provided with a column, and the column is inserted into the round hole.

7. The easy-in and easy-out wheelchair according to claim 1, wherein The frame body is provided with a telescopic rod, the telescopic rod, and a support wheel connected to the end of the telescopic rod; the telescopic rod is used to extend the support wheel outside the frame body.

8. The easy-in and easy-out wheelchair of claim 1, wherein, The moving mechanism is provided with a driving wheel and a follow-up wheel, and the driving wheel is connected to a driver.

9. The easy-in and easy-out wheelchair according to claim 1, wherein, The seat plate is provided with a backrest, and the backrest is rotatably connected to the seat plate.

10. The easy-in and easy-out wheelchair according to claim 1, wherein, A controller is connected to the moving mechanism, the transfer mechanism, and the lifting mechanism; the controller is connected to an environmental sensor, and the environmental sensor is used to obtain environmental information around the wheelchair.

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