CN207996268U - A kind of folding light shape electric wheelchair - Google Patents

Abstract

The utility model discloses a foldable light electric wheelchair, which comprises a rear frame and a seat frame. The seat frame is a parallelogram structure spliced by an upper frame and a lower frame, and the front ends of the upper frame and the lower frame are connected by movable parts. There are pedals, the rear end of the upper frame and the lower frame are connected to the rear frame, and a limit column is installed at the connection with the rear frame; a quick fixing mechanism is also installed on one side of the rear frame, and the quick fixing mechanism is locked on the Between the upper frame and the lower frame; the bottom of the lower frame is also equipped with front wheels and rear wheels, and an armrest is arranged above the upper frame, and the armrest is fixedly installed on the rear frame, and a controller is arranged on the armrest. The foldable light electric wheelchair utilizes the instability of a parallelogram to achieve the purpose of convenient folding, simple and reliable structure, and compact folding by rationally arranging rotatable movable parts at four nodes of the seat bracket.

Description

A foldable light electric wheelchair

technical field

The utility model relates to the technical field of wheelchairs, in particular to a foldable light electric wheelchair.

Background technique

Wheelchairs are widely used in the lives of disabled patients. At present, the existing wheelchairs are electric and manual, and intelligent control is not uncommon. However, there is a problem with filling most wheelchairs, that is, when not in use, if they cannot be folded, there will be problems such as occupying space and inconvenient transportation. Even if the existing wheelchair part has its own folding function, its folding is relatively cumbersome and has a complicated structure, and the folding effect cannot reach the most ideal state, and it is also relatively troublesome when unfolding.

Contents of the invention

The purpose of the utility model is to provide a foldable light electric wheelchair which is convenient to fold, has a simple and reliable structure, and can be folded compactly, which solves the problems in the prior art.

In order to achieve the above object, the utility model provides the following technical solutions: a foldable light electric wheelchair, including a rear frame and a seat frame, the seat frame is a parallelogram structure spliced by the upper frame and the lower frame, the upper frame and the The front end of the lower frame is connected with a pedal through a movable part, and the rear ends of the upper frame and the lower frame are connected to the rear frame, and a limit column is installed at the connection with the rear frame; one side of the rear frame is also equipped with a quick fixing mechanism, the fast fixing mechanism is locked between the upper frame and the lower frame; the bottom of the lower frame is also equipped with front wheels and rear wheels, and an armrest is arranged above the upper frame, and the armrest is fixedly installed on the rear frame, and the armrest is provided with controller.

Preferably, the diameter of the front wheel is smaller than that of the rear wheel, and the front wheel is on the same level as the rear wheel through the installed horn.

Preferably, the section of the seat frame composed of the upper frame and the lower frame is a foldable parallelogram structure.

Preferably, the joints connecting the upper frame and the lower frame are all rotatable movable parts.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. When the foldable light electric wheelchair is folded, open the fast fixing mechanism, push the CD lever between the upper shelf and the lower shelf forward or pull up the AC lever, so that the frame can be folded along the predetermined folding track of the parallelogram , wherein, the AC rod and BD rod between the upper and lower racks are in contact, and the folding action is completed; when it needs to be unfolded, contrary to the folding action, when the limit post of the AC rod touches the CD rod, the frame has been fully unfolded and synchronized Just lock the fast fixing mechanism; it utilizes the instability of the parallelogram, and reasonably arranges the rotatable movable parts at the four nodes of the seat bracket to achieve the purpose of convenient folding, simple and reliable structure, and compact folding.

2. The layout of the foldable light electric wheelchair makes full use of the folding movement track of the frame, so as to achieve no space occupation when folding, simultaneous opening when unfolding, and the layout of the C joint between the upper shelf and the lower shelf , so that the folding volume and the overall width of the vehicle are optimized; after the vehicle is folded, the rear wheels and floor pads form a fulcrum, and the folded vehicle can stand on a level ground for easy towing.

Description of drawings

Fig. 1 is the side structural representation of the utility model;

Fig. 2 is a schematic diagram of the utility model;

Fig. 3 is a structural schematic diagram of the overall deployment of the utility model at a left 45°;

Fig. 4 is a structural schematic diagram of the overall deployment of the utility model at 45° to the right;

Fig. 5 is a structural schematic diagram of the overall folded left 45° of the utility model;

Fig. 6 is a structural schematic diagram of the overall folded right 45° of the utility model;

Fig. 7 is a schematic diagram of the overall folded horizontal structure of the present invention.

In the figure: 1 rear frame, 2 seat bracket, 21 upper frame, 22 lower frame, 3 foot pedal, 4 limit column, 5 fast fixing mechanism, 6 front wheel, 7 rear wheel, 8 armrest, 9 controller.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1-7, a kind of foldable lightweight electric wheelchair, comprises rear frame 1 and seat frame 2, and seat frame 2 is the collapsible parallelogram structure that is spliced by upper frame 21 and lower frame 22, and upper frame 21 The nodes connected with the lower frame 22 are all rotatable movable parts, which make it easy to open and fold. The front ends of the upper frame 21 and the lower frame 22 are connected with a pedal 3 through the movable parts, and the rear ends of the upper frame 21 and the lower frame 22 are connected. On the rear frame 1, a limit column 4 is installed at the connection with the rear frame 1; a quick fixing mechanism 5 is also installed on one side of the rear frame 1, and the quick fixing mechanism 5 is locked between the upper frame 21 and the lower frame 22 The bottom of lower frame 22 is also equipped with front-wheel 6 and rear wheel 7, and the diameter of front-wheel 6 is less than rear-wheel 7, and front-wheel 6 is in same horizontal plane with rear-wheel 7 by the horn fork of installation, makes when folding through rear-wheel 7; The wheel 7 is directly dragged on the bottom surface, the front wheel 6 can be accommodated in the bracket, the front wheel 6 and the rear wheel 7 are opened to keep rolling on the level ground at the same height, the top of the upper shelf 21 is provided with a handrail 8, and the handrail 8 is fixedly mounted on the rear On the frame 1, and the armrest 8 is provided with a controller 9, so that a person sits on the armrest 8 with his hands on it, and can directly control the motion track of the electric wheelchair through the controller 9.

Working principle: This foldable lightweight electric wheelchair utilizes the instability of a parallelogram to rationally arrange the rotatable movable parts at the four nodes of the seat bracket 2 to achieve convenient folding, simple and reliable structure, and easy folding. The purpose of compactness; when it is folding, open the fast fixing mechanism 5, push the CD rod between the upper frame 21 and the lower frame 22 forward or pull up the AC rod, so that the frame is folded along the predetermined folding track of the parallelogram, wherein, The AC rod between the upper frame 21 and the lower frame 22 is in contact with the BD rod, and the folding action is completed; when it needs to be unfolded, contrary to the folding action, when the limit post 4 of the AC rod touches the CD rod, the frame has been fully unfolded and synchronized Lock the fast fixing mechanism 5 and get final product.

To sum up: this foldable light electric wheelchair, the layout of the pedal 3 makes full use of the folding movement track of the frame, so as not to occupy space when it is folded. The layout of the C joint points optimizes the folding volume and the overall width of the vehicle; after the vehicle is folded, the rear wheels 7 and the floor pads form four fulcrums, and the folded vehicle can stand on a level ground for easy towing.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (4)

1. a kind of folding light shape electric wheelchair, including after-frame(1)And seat support(2), it is characterised in that:The seat branch Frame(2)By restocking(21)And undercarriage(22)The parallelogram sturcutre being spliced into, restocking(21)And undercarriage(22)Front end pass through Movable part is connected with foot-operated(3), restocking(21)And undercarriage(22)Rear end be connected to after-frame(1)On, and with after-frame(1)Company The place of connecing is equipped with limited post(4);The after-frame(1)Side be also equipped with mechanism for quick fixing(5), mechanism for quick fixing(5) It is locked at restocking(21)And undercarriage(22)Between;The undercarriage(22)Bottom be also equipped with front-wheel(6)And trailing wheel(7), restocking (21)Top be provided with handrail(8), handrail(8)It is fixedly mounted on after-frame(1)On, and handrail(8)On be provided with controller (9).

2. the folding light shape electric wheelchair of one kind according to claim 1, it is characterised in that:The front-wheel(6)It is straight Diameter is less than trailing wheel(7), front-wheel(6)Pass through the angle fork and trailing wheel of installation(7)It is in same level.

3. the folding light shape electric wheelchair of one kind according to claim 1, it is characterised in that:The restocking(21)With under Frame(22)The seat support of composition(2)Section be folding parallelogram sturcutre.

4. the folding light shape electric wheelchair of one kind according to claim 1, it is characterised in that:The restocking(21)With under Frame(22)It is rotatable movable part at the node of connection.