Portable vehicle-mounted wheelchair system for people with disabled lower limbs

Abstract

The utility model relates to a portable vehicle-mounted wheelchair system for people with lower limbs disabled, which comprises a base used for being mounted on a floor platform of a rear door in a vehicle, the base is driven by a first electric mechanism to horizontally rotate along a vertical shaft, and a sliding seat body driven by a second electric mechanism to perform reciprocating translation adjustment is arranged on the base. The sliding seat body is connected with a supporting platform through a parallelogram mechanism, and the parallelogram mechanism is driven by a driving assembly to ascend, descend and swing. According to the portable vehicle-mounted wheelchair system for the lower limb disabled person, the problem of getting on and off of the lower limb disabled person is solved. According to the device, the lower limb disabled can get on and off the vehicle without the help of an ordinary person, the wheelchair does not need to be replaced, the lower limb disabled can directly sit on the electric wheelchair to enter a riding room on the rear door of the large MPV, and the device can replace an automobile seat for the large MPV.

Description

Technical Field

[0001] The utility model relates to a convenient vehicle-mounted wheelchair system for people with lower limb disabilities, which is mainly used for people with lower limb disabilities to get on and off the wheelchair through the rear door of a large MPV. Background Art

[0002] As the population ages, the number of people with mobility impairments increases year by year, and their outdoor travel problems cannot be ignored. However, most of the devices on the market now are ramp-type wheelchair manual loading and unloading devices. Ramp-type wheelchair manual loading and unloading devices have a low degree of automation, are time-consuming and labor-intensive, and require the use of a ramp to push the wheelchair from the ground into the rear door of the car, which is inconvenient to use. Utility Model Content

[0003] In view of the deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a convenient vehicle-mounted wheelchair system for people with lower limb disabilities.

[0004] In order to solve the above technical problems, the technical solution of the utility model is: a portable vehicle-mounted wheelchair system for people with lower limb disabilities, comprising a base for installation on the rear door platform in the vehicle, the base being driven by a first electric mechanism to rotate horizontally along the vertical axis, the base being provided with a sliding seat body driven by a second electric mechanism to perform reciprocating translation adjustment, the sliding seat body being connected to a supporting platform via a parallelogram mechanism, and the parallelogram mechanism being driven by a driving assembly to perform lifting and swinging.

[0005] Preferably, a horizontal mounting plane is fixedly connected to the platform, the bottom surface of the base contacts the top surface of the mounting plane, the first electric mechanism includes a first motor located below the mounting plane, and the rotating shaft of the first motor passes upward through the mounting plane and is fixedly connected to the bottom surface of the base.

[0006] Preferably, a first gear is coaxially fixedly connected to the rotating shaft of the first motor, a first gear ring is fixedly connected to the bottom surface of the base, and the first gear is coaxial and meshing with the first gear ring.

[0007] Preferably, the bottom surface of the sliding seat body leans against the top surface of the base, the second electric mechanism includes a second motor fixedly connected to the inner bottom surface of the base, the output shaft of the second motor is coaxially fixedly connected to a driving gear, the driving gear is meshed with a driven gear, the driven gear is coaxially fixedly connected to a ball screw installed inside the base, and the sliding seat body is fixedly connected to a ball nut threadedly connected to the ball screw.

[0008] Preferably, the driving assembly includes a first rack fixedly connected to the inside of the base, the extension direction of the first rack is the translation direction of the sliding seat body, the first rack is meshed with a second gear, the second gear is installed on the side of the sliding seat body for rotation, and the axial direction of the second gear is perpendicular to the translation direction of the sliding seat body, the side of the second gear is coaxially connected to the first bevel gear via a rotating shaft, the first bevel gear is meshed with the second bevel gear, the second bevel gear is connected to a third bevel gear located below the support platform via a connecting shaft, the third bevel gear is meshed with a fourth bevel gear, the axial direction of the fourth bevel gear is perpendicular to the translation direction of the sliding seat body and is coaxially fixed to the third gear via the rotating shaft, the upper and lower parts of the third gear are meshed with second racks, the extension direction of the second rack is the translation direction of the sliding seat body, and the second racks are fixedly connected to the bottom surface of the support platform.

[0009] Preferably, the connecting shafts are connected to the second bevel gear and the third bevel gear via universal joints, the right side of the second bevel gear is meshed with the left side of the first bevel gear, and the left side of the third bevel gear is meshed with the right side of the fourth bevel gear.

[0010] Preferably, the parallelogram mechanism comprises an upper short side, a lower short side and two long oblique sides hinged between the upper and lower short sides, the upper short side is horizontally fixedly connected to the sliding seat body, and the lower short side is horizontally fixedly connected to the supporting platform.

[0011] Preferably, a convex baffle is fixedly provided on the front edge of the support platform.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the portable wheelchair system for lower limb disabled people solves the problem of getting on and off the vehicle for lower limb disabled people. This device does not require the help of ordinary people or the replacement of wheelchairs during the process of getting on and off the vehicle, and can directly enter the passenger compartment of the rear door of a large MPV by sitting on an electric wheelchair, and can also replace car seats for large MPVs.

[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The structure of the embodiment of the utility model is shown in FIG. Figure 1 .

[0015] Figure 2 The structure of the embodiment of the utility model is shown in FIG. Figure 2 .

[0016] Figure 3 The structure of the embodiment of the utility model is shown in FIG. Figure 3 .

[0017] Figure 4The structure of the embodiment of the utility model is shown in FIG. Figure 4 .

[0018] Figure 5 The working state of the embodiment of the utility model is shown in FIG. Figure 1 .

[0019] Figure 6 The working state of the embodiment of the utility model is shown in FIG. Figure 2 . DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0022] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0023] like Figures 1 to 6 As shown, this embodiment provides a portable vehicle-mounted wheelchair system for people with lower limb disabilities, including a base 1 for installation on the rear door platform in a vehicle, the base is driven by a first electric mechanism to rotate horizontally along a vertical axis, a sliding seat body 2 is provided on the base and is driven by a second electric mechanism to perform reciprocating translation adjustment, the sliding seat body is connected to a supporting platform 3 via a parallelogram mechanism, and the parallelogram mechanism is driven by a driving component to perform lifting and swinging.

[0024] In an embodiment of the utility model, a horizontal mounting plane is fixedly connected to the platform, the bottom surface of the base is in contact with the top surface of the mounting plane, and the first electric mechanism includes a first motor 5 located below the mounting plane, and the rotating shaft of the first motor passes upward through the mounting plane and is fixedly connected to the bottom surface of the base.

[0025] In the embodiment of the utility model, a first gear 6 is coaxially fixedly connected to the rotating shaft of the first motor, a first gear ring 7 is fixedly connected to the bottom surface of the base, and the first gear is coaxial and meshed with the first gear ring.

[0026] In an embodiment of the utility model, the bottom surface of the sliding seat body rests on the top surface of the base, the second electric mechanism includes a second motor 8 fixedly connected to the inner bottom surface of the base, the output shaft of the second motor is coaxially fixedly connected to a driving gear 9, the driving gear is meshed with a driven gear 10, the driven gear is coaxially fixedly connected to a ball screw 11 installed inside the base, and the sliding seat body is fixedly connected to a ball nut 12 threadedly connected to the ball screw.

[0027] In an embodiment of the utility model, the driving assembly includes a first rack 13 fixedly connected to the inside of the base, the extension direction of the first rack is the translation direction of the sliding seat body, the first rack is meshed with a second gear 14, the second gear is installed on the side of the sliding seat body for rotation, and the axial direction of the second gear is perpendicular to the translation direction of the sliding seat body, the side of the second gear is coaxially fixed with a first bevel gear 16 via a rotating shaft 15, the first bevel gear is meshed with a second bevel gear 17, the second bevel gear is connected to a third bevel gear 19 located below the support platform via a connecting shaft 18, the third bevel gear is meshed with a fourth bevel gear 20, the axial direction of the fourth bevel gear is perpendicular to the translation direction of the sliding seat body and is coaxially fixed with a third gear 21 via a rotating shaft, the upper and lower parts of the third gear are meshed with second racks 22, the extension direction of the second rack is the translation direction of the sliding seat body, and the second racks are fixed to the bottom surface of the support platform.

[0028] In the embodiment of the utility model, the connecting shaft is connected to the second bevel gear and the third bevel gear via a universal joint 23, the right side of the second bevel gear meshes with the left side of the first bevel gear, and the left side of the third bevel gear meshes with the right side of the fourth bevel gear.

[0029] In the embodiment of the utility model, the parallelogram mechanism includes an upper short side 24, a lower short side 25 and two long oblique sides 26 hinged between the upper and lower short sides. The upper short side is horizontally fixed to the sliding seat body, and the lower short side is horizontally fixed to the supporting platform.

[0030] In the embodiment of the utility model, an upward convex baffle 27 is fixedly provided on the front edge of the support platform.

[0031] In an embodiment of the utility model, the portable wheelchair system for people with lower limb disabilities is installed on the platform of the rear seat position of a large MPV. The original second row of seats of the car needs to be removed for modification. The function of the seat belt should be retained, and the fixed buckle of the seat belt can be fixed in a suitable position in the car.

[0032] In the embodiment of the utility model, the electric wheelchair size applicable to the portable wheelchair system for lower limb disabled persons is the size of indoor and outdoor electric wheelchairs that meet the regulations. The specific size range of the electric wheelchair is shown in the following table:

[0033]

[0034] According to actual measurements, for example, after the second row of seats in Honda Elysion is removed, the interior height of the second row is not less than 1200 mm, the height of the rear door frame is not less than 1200 mm, and the width of the rear door after opening is not less than 710 mm; for another example, after the second row of seats in Buick GL8 is removed, the interior height of the second row is not less than 1210 mm, the height of the rear door frame is not less than 1210 mm, and the width of the rear door after opening is not less than 800 mm. Therefore, since the electric wheelchair of the vehicle-mounted wheelchair system of the present application is to get on and off the vehicle with the back of the wheelchair against the rear door, and the wheelchair is rotated in the vehicle after getting on the vehicle, according to the specified specific electric wheelchair size range, the maximum total width of the electric wheelchair of 700 mm fully meets the rear door frame width requirements when getting on and off the vehicle in most MPV models, and the maximum total height of the electric wheelchair of 1090 mm also meets the second row interior height and rear door frame height requirements of most MPV models. At the same time, the wheels of most electric wheelchairs also have a lifting function, which can further reduce the height of the electric wheelchair itself.

[0035] A working method of a portable wheelchair system for lower limb disabled persons is carried out according to the following steps:

[0036] S1: A disabled person rides an electric wheelchair to the rear door of a large MPV, and the rear door is opened;

[0037] S2: Adjust the electric wheelchair to lean against the rear door, that is, the width direction of the electric wheelchair is aligned with the width direction of the rear door;

[0038] S3: The base installed on the rear door platform inside the vehicle rotates outward 90°, and then the sliding seat body moves outward, driving the supporting platform to move outward together;

[0039] S4: During the outward translation of the support platform, the drive assembly drives the support platform to simultaneously drop to a position below the bottom surface of the seat surface 28 of the electric wheelchair, and the electric wheelchair moves backward so that the support platform extends under the seat surface, and then the support platform rises again and gradually translates inward, the support platform supports the bottom of the seat surface of the electric wheelchair, and the baffle blocks the front of the seat surface, so that the entire electric wheelchair and the disabled person are lifted up and retracted into the vehicle (such as Figure 5 , 6 shown);

[0040] S5: The base is then rotated inwards 90° to reset, and the back of the electric wheelchair is turned toward the rear compartment of the large MPV, and the disabled person's line of sight is toward the front of the vehicle;

[0041] S6: The electric wheelchair is braked, and the disabled person fastens the safety belt in the vehicle. The disabled person has finished getting on the vehicle in the wheelchair, and the process of getting off the vehicle is the opposite of the above process.

[0042] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model.

Claims

1. A portable wheelchair system for people with lower limb disabilities, characterized by: The invention comprises a base for being installed on the rear door platform in a vehicle, the base is driven by a first electric mechanism to rotate horizontally along a vertical axis, a sliding seat body is arranged on the base and is driven by a second electric mechanism to perform reciprocating translation adjustment, the sliding seat body is connected to a supporting platform via a parallelogram mechanism, and the parallelogram mechanism is driven by a driving component to perform lifting and swinging.

2. The portable wheelchair system for lower limb disabled persons according to claim 1, characterized in that: A horizontal mounting plane is fixedly connected to the platform, the bottom surface of the base contacts the top surface of the mounting plane, the first electric mechanism includes a first motor located below the mounting plane, and the rotating shaft of the first motor passes upward through the mounting plane and is fixedly connected to the bottom surface of the base.

3. The portable wheelchair system for lower limb disabled persons according to claim 2, characterized in that: A first gear is coaxially fixedly connected to the rotating shaft of the first motor, a first gear ring is fixedly connected to the bottom surface of the base, and the first gear is coaxially meshed with the first gear ring.

4. The portable wheelchair system for lower limb disabled persons according to claim 1, characterized in that: The bottom surface of the sliding seat body leans against the top surface of the base, the second electric mechanism includes a second motor fixedly connected to the inner bottom surface of the base, the output shaft of the second motor is coaxially fixedly connected to a driving gear, the driving gear is meshed with a driven gear, the driven gear is coaxially fixedly connected to a ball screw installed inside the base, and the sliding seat body is fixedly connected to a ball nut threadedly connected to the ball screw.

5. The portable wheelchair system for lower limb disabled persons according to claim 1, characterized in that: The driving assembly includes a first rack fixedly connected to the inside of the base, the extension direction of the first rack is the translation direction of the sliding seat body, the first rack is meshed with a second gear, the second gear is installed on the side of the sliding seat body for rotation, and the axial direction of the second gear is perpendicular to the translation direction of the sliding seat body, the side of the second gear is coaxially connected with the first bevel gear via a rotating shaft, the first bevel gear is meshed with the second bevel gear, the second bevel gear is connected to a third bevel gear located below the supporting platform via a connecting shaft, the third bevel gear is meshed with a fourth bevel gear, the axial direction of the fourth bevel gear is perpendicular to the translation direction of the sliding seat body and is coaxially fixed with the third gear via the rotating shaft, the upper and lower parts of the third gear are meshed with second racks, the extension direction of the second rack is the translation direction of the sliding seat body, and the second racks are fixedly connected to the bottom surface of the supporting platform.

6. The portable wheelchair system for lower limb disabled persons according to claim 5, characterized in that: The connecting shafts are connected to the second bevel gear and the third bevel gear via universal joints. The right side of the second bevel gear meshes with the left side of the first bevel gear, and the left side of the third bevel gear meshes with the right side of the fourth bevel gear.

7. The portable wheelchair system for lower limb disabled persons according to claim 1, characterized in that: The parallelogram mechanism comprises an upper short side, a lower short side and two long oblique sides hinged between the upper and lower short sides, the upper short side is horizontally fixedly connected to the sliding seat body, and the lower short side is horizontally fixedly connected to the supporting platform.

8. The portable wheelchair system for lower limb disabled persons according to claim 1, characterized in that: An upward convex baffle is fixedly provided on the front edge of the support platform.

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