CN216777395U - Barrier-free wheelchair - Google Patents

Abstract

The utility model discloses an obstacle-free wheelchair which comprises a frame, a back frame, front wheels and rear wheels, wherein the front wheels are symmetrically arranged at the front end of the frame, the rear wheels are symmetrically arranged at the rear end of the frame, the front wheels are universal wheels, the front wheels are connected with steering mechanisms, the rear wheels are connected with movement mechanisms, the steering mechanisms and the movement mechanisms are integrated in an electric controller for control, the front wheels and the rear wheels are of coaxial double-wheel structures, each coaxial double-wheel structure comprises an inner wheel and an outer wheel which are arranged side by side, the inner wheel comprises an inner spoke and an inner rim, the outer wheel comprises an outer spoke and an outer rim, the inner rim is a full circle, the outer rim comprises a plurality of arc-shaped rims, the diameters of the arc-shaped rims are the same as those of the inner wheel, and the outer spoke is a telescopic mechanism. The outer spoke is a cylinder and is connected with a cylinder driving mechanism. The problem of current wheelchair can't climb stair and cross the obstacle is solved.

Description

Barrier-free wheelchair

Technical Field

The utility model relates to the field of novel wheelchair structures, in particular to an obstacle-free wheelchair.

Background

The inconvenience of going out while sitting on the wheelchair is a very headache problem in life for a large number of disabled people. For example, people want to go downstairs and go out to shops opposite to streets to buy daily necessities, the difficulty is that the people cannot imagine that the road teeth from a section of stairs to the street corners and even the deceleration strips which are common on the roads can become the road barricades of the wheelchair. Some of the electronic wheelchair that have on the market current make the improvement to going up and down stairs, utilize the track structure to turn into the slope with the stair of a lesson, recycle the slope removal that the friction between track and the stair right angle drove the wheelchair, nevertheless this kind of motion's wheelchair seat also can become the slope, and whole people falls into and can't move the bullet in the seat, and the sense of insecurity can rise when the comfort level greatly reduced. The utility model discloses a wheelchair, including wheelchair, wheel assembly, power source, the wheel assembly is used for the wheel assembly to make up the effect of climbing the building, but this kind of motion's wheelchair can't be made into electronic wheelchair, there is very big limitation in the aspect of the power source, nursing staff drags on stair very hard, and need to fall down to go up, self also has certain potential safety hazard, slightly carelessly do not step on under the foot steady or step on empty, can take place wheelchair and people from the tragic accident that the stair fell down. Therefore, the utility model designs the barrier-free electric wheelchair based on the defects and shortcomings of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an obstacle-free wheelchair to solve the problem that the conventional wheelchair cannot climb stairs and get over obstacles.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an accessible wheelchair, includes frame, back of the body frame, front wheel and rear wheel, the front wheel symmetry sets up in the frame front end, the rear wheel symmetry sets up in the frame rear end, the front wheel is the universal wheel, the front wheel is connected with steering mechanism, the rear wheel is connected with motion, steering mechanism and motion are integrated to be controlled in electric controller, front wheel and rear wheel are coaxial double round structure, coaxial double round structure is including interior wheel and the foreign steamer of arranging side by side, interior wheel includes interior spoke and interior rim, the foreign steamer includes outer spoke and foreign steamer circle, interior rim is the whole circle, the foreign steamer circle comprises a plurality of arc wheel circles, the arc wheel circle is the same with the diameter of interior rim, outer spoke is telescopic machanism. The outer spoke is a cylinder and is connected with a cylinder driving mechanism.

Preferably, a sponge contact head is arranged between the outer spokes. The sponge contact head can beautify the appearance, prevents simultaneously that the flexible removal of cylinder from causing the collision between two adjacent wheel sections.

Preferably, an integrated drive control box is arranged below the frame, and a level gauge is arranged in the integrated drive control box. When the gradienter detects that the seat and the horizontal position deviate, a command is transmitted to a corresponding outer wheel section cylinder through a line, the seat is leveled by the extension of the cylinder, the effective travel distance of the small wheel cylinder is recommended to be within 60 mm, and when the effective travel distance exceeds 60 mm, although the small wheel and the large wheel are arranged in a front-back collinear manner, the steering effect of the wheelchair can be influenced when the diameter of the outer wheel section of the small wheel is too large. The effective travel distance of the large wheel cylinder is recommended to be within 120 mm, and when the diameter of the outer wheel section of the large wheel is too large, the outer wheel section at the top can collide with the arm of a user to cause injury.

Preferably, a baffle is arranged between the frame and the rear wheel. The swinging angle of clothes or the rolling of small articles into the wheel can be prevented.

Preferably, a safety belt is arranged on the frame. Prevent the human body from overturning when the electric wheelchair is started and suddenly stopped.

Preferably, the rear part of the frame is provided with back cushions, and elastic back cushions are arranged between the back cushions. The back cushion can be used for leaning of a user; the middle of the two back cushions is provided with a flexible elastic back cushion which can be adjusted to the most suitable height position by users with different body types.

Preferably, the rear part of the frame is provided with a handle. When the walking aid is used together with family members for leisure and walking, the walking aid can be pushed to use.

Preferably, the frame is provided with a sponge handrail. Sponge armrests are arranged on two sides of the seat and can be used for a user to place arms.

Compared with the prior art, the utility model has the beneficial effects that:

the barrier-free wheelchair disclosed by the utility model adopts a coaxial double-wheel-group structure, is a normal electric wheelchair when used on the flat ground, and is simple to operate and convenient to use. When the wheelchair encounters a road obstacle or stairs, the cylinders of the front wheel set and the rear wheel set of the wheelchair start to operate as required through the mode switching of the buttons at the hand. Under the spirit level detection of seat below, each position of foreign steamer section is automatic to be extended and is guaranteed the level of seat, has certain resilience degree again simultaneously, can easily cross the obstacle.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the rear wheel structure of the present invention;

fig. 3 is a schematic structural view of the outer wheel of the rear wheel of the present invention.

Reference numerals: 1. a frame; 2. a back frame; 3. a front wheel; 4. a rear wheel; 5. an electric controller; 60. an inner wheel; 61. an outer wheel; 601. an inner spoke; 602. an inner race; 611. an outer spoke; 612. an outer wheel ring; 62. a sponge contact; 7. an integrated drive control box; 8. a baffle plate; 9. a seat belt; 10. back cushion; 11. elastic cushion; 12. a handle; 13. sponge handrail.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to fig. 3, the barrier-free wheelchair of the present embodiment includes a frame 1, a back frame 2, a front wheel 3 and a rear wheel 4, the front wheel 3 is symmetrically disposed at the front end of the frame 1, the rear wheel 4 is symmetrically disposed at the rear end of the frame 1, the front wheel 3 is a universal wheel, the front wheel 3 is connected with a steering mechanism, the rear wheel 4 is connected with a moving mechanism, the steering mechanism and the moving mechanism are integrated with an electric controller 5 for control, the front wheel 3 and the rear wheel 4 are coaxial two-wheel structures, the coaxial two-wheel structures include an inner wheel 60 and an outer wheel 61 that are disposed side by side, the inner wheel 60 includes an inner spoke 601 and an inner wheel 602, the outer wheel 61 includes an outer spoke 611 and an outer wheel 612, the inner wheel 602 is a full circle, the outer wheel 612 is composed of a plurality of arc-shaped rims, the diameter of the arc-shaped rims is the same as that of the inner wheel 602, and the outer spoke 611 is a telescopic mechanism. The outer ring of the wheel is pressed with grains for increasing the friction force with the ground.

The outer spokes 611 are air cylinders and are connected to an air cylinder drive mechanism.

A sponge contact head 62 is provided between the outer spokes 611.

An integrated drive control box 7 is arranged below the frame 1, and a level gauge is arranged in the integrated drive control box 7.

A fender 8 is arranged between the frame 1 and the rear wheel 4.

The frame 1 is provided with a safety belt 9.

The rear part of the frame 1 is provided with back cushions 10, and elastic back cushions 11 are arranged between the back cushions 10.

The rear part of the frame 1 is provided with a handle 12.

The frame 1 is provided with a sponge handrail 13.

In normal use, the structure is the same as that of the existing electric wheelchair on the market, the steering and driving are all conventional operations, the integrated drive control box 7 comprises but is not limited to a motor drive mechanism, a cylinder drive mechanism, a control module and the like, the use of the cylinder is a conventional means in the field, and the detailed description is not provided,

when an obstacle is encountered, the electric controller 5 can be adjusted to perform steering, speed adjustment and the like, and when the obstacle is difficult to pass through, the air cylinder is started to extend the outer spoke 611, so that the outer rim 612 is expanded outwards to form a moving wheel. The motion wheel has obviously better trafficability than the traditional round wheel and has the function of climbing stairs. At the moment, the control module is connected with the level gauge, so that the control module can control the stretching of the cylinder, the balance of the level gauge is guaranteed, and then the balance of the wheelchair is guaranteed.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (9)

1. The utility model provides an accessible wheelchair, includes frame (1), back of the body frame (2), front wheel (3) and rear wheel (4), front wheel (3) symmetry sets up in frame (1) front end, rear wheel (4) symmetry sets up in frame (1) rear end, front wheel (3) are the universal wheel, front wheel (3) are connected with steering mechanism, rear wheel (4) are connected with motion, steering mechanism and motion are integrated to be controlled in electric controller (5), its characterized in that: front wheel (3) and rear wheel (4) are coaxial double round structure, coaxial double round structure is including interior wheel (60) and foreign steamer (61) of arranging side by side, interior wheel (60) is including interior spoke (601) and interior rim (602), foreign steamer (61) is including outer spoke (611) and foreign steamer circle (612), interior rim (602) is the whole circle, foreign steamer circle (612) comprises a plurality of arc wheel rims, the arc wheel rim is the same with the diameter of interior rim (602), outer spoke (611) is telescopic machanism.

2. The barrier-free wheelchair of claim 1, wherein: the outer spoke (611) is an air cylinder and is connected with an air cylinder driving mechanism.

3. The barrier-free wheelchair of claim 2, wherein: sponge contact heads (62) are arranged between the outer spokes (611).

4. The barrier-free wheelchair of claim 3, wherein: an integrated drive control box (7) is arranged below the frame (1), and a level gauge is arranged in the integrated drive control box (7).

5. The barrier-free wheelchair of claim 1, wherein: a baffle (8) is arranged between the frame (1) and the rear wheel (4).

6. The barrier-free wheelchair of claim 1, wherein: the frame (1) is provided with a safety belt (9).

7. The barrier-free wheelchair of claim 1, wherein: the rear part of the frame (1) is provided with back cushions (10), and an elastic back cushion (11) is arranged between the back cushions (10).

8. The barrier-free wheelchair of claim 1, wherein: the rear part of the frame (1) is provided with a handle (12).

9. The barrier-free wheelchair of claim 1, wherein: the frame (1) is provided with a sponge handrail (13).

Images