CN210612380U - One-key folding mechanism of wheelchair - Google Patents

Abstract

The utility model discloses a wheelchair one-key folding mechanism, including end support frame, back support frame, handle, cushion, handrail, controller, side pipe, set up a set of front wheel and the rear wheel of setting in the side outside of managing in end support frame both sides, the cushion bottom is equipped with the cushion frame, side's pipe inside wall is equipped with the spacing groove of a set of symmetry, the spacing groove both ends all are equipped with spacing hole, two relative spacing downthehole joint are equipped with fixed knot and construct. The utility model is provided with the limit groove, the limit hole and the fixed structure, which is beneficial to relatively pushing the push block of the fixed structure, so that the spring is contracted, the fixture block leaves one limit hole in the limit groove and enters the other limit hole, and the wheelchair is folded under the action of the rotation connection of the square tube, the bottom support frame and the rear wheel, the structure is simple and the use is convenient; the hinge structure is favorable for packing up the cushion frame, so that the packing area is smaller, and the storage is convenient.

Description

One-key folding mechanism of wheelchair

Technical Field

The utility model relates to a wheelchair field, in particular to a wheelchair one-key folding mechanism.

Background

The wheelchair has been widely used and developed as a displacement tool for disabled persons or old and weak persons, and also provides convenience for the daily travel activities of users. The existing wheelchair has a variety of types, namely a folding type wheelchair and a fixed type wheelchair in structure, and a manual type wheelchair and an electric type wheelchair in driving modes. However, the wheelchair frame of the fixed wheelchair is fixed and can not be folded, and part of the wheelchair frame can be matched with a toilet bowl, but the wheelchair frame is fixed, so that the wheelchair is large in size and inconvenient to transport or carry, and the non-foldable wheelchair is mostly in a mode of manually pushing the wheelchair. The folding mode of some existing folding wheelchairs is complex, and most of the wheelchairs are used by old people, so that the wheelchair is inconvenient to use.

Therefore, there is a need for a one-key folding mechanism for a wheelchair that solves the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wheelchair one-key folding mechanism to the folding mode of solving some current folding wheelchairs that propose among the above-mentioned background art is comparatively complicated, and uses being mostly old person of wheelchair, makes to use special inconvenient problem.

In order to achieve the above object, the utility model provides a following technical scheme: a wheelchair one-key folding mechanism comprises a bottom support frame, a rear support frame, a handle, a cushion, handrails, a controller, a square tube, a group of front wheels arranged on two sides of the bottom support frame and rear wheels arranged on the outer side of the square tube, wherein a cushion frame is arranged at the bottom of the cushion, a group of symmetrical limiting grooves are formed in the inner side wall of the square tube, limiting holes are formed in two ends of each limiting groove, fixing structures are clamped in the two opposite limiting holes, a first support rod is fixedly connected to the top of each fixing structure, a second support rod is arranged at the top of each first support rod, a connecting rod is rotatably connected to the bottom of the cushion frame, the other end of the connecting rod is rotatably connected with the bottom support frame, and the second support rod can be folded;

the fixed knot constructs including the outside sleeve pipe, a set of through-hole has been seted up to outside sleeve pipe one side, the inside inner tube that is equipped with a set of symmetry of outside sleeve pipe, two be connected with the spring between the inner tube, the inner tube is kept away from spring one end and is connected with the fixture block, the inner tube runs through-hole fixedly connected with ejector pad, spacing groove, spacing hole and fixed knot construct are favorable to promoting fixed knot structure's ejector pad relatively for the spring shrink for the fixture block leaves a spacing hole of spacing inslot, enters into another spacing downthehole, makes and to fold the wheelchair under the effect of square pipe and bottom sprag frame and rear wheel rotation connection, simple structure facilitates the use.

Preferably, the square pipe and the bottom support frame are rotationally connected, and the handrail is in contact with the top of the square pipe.

Preferably, the first support rod and the seat cushion frame are connected through a hinge structure, and the hinge structure comprises a first hinge block arranged at one end of the seat cushion frame.

Preferably, the inside articulated piece of second that is equipped with of first articulated piece, the articulated piece of second and first bracing piece fixed connection, the inside bolt that runs through of first articulated piece and the articulated piece of second, articulated structure is favorable to packing up the cushion frame for it is littleer to pack up the area, convenient storage.

Preferably, the second support rod is fixedly connected with the handle, and the armrest is rotatably connected with the first support rod.

Preferably, one end of the bottom support frame, which is far away from the rear wheel, is provided with a pedal.

The utility model has the advantages that:

the limit groove, the limit hole and the fixing structure are arranged, so that the push block of the fixing structure can be relatively pushed, the spring is contracted, the clamping block leaves one limit hole in the limit groove and enters the other limit hole, and the wheelchair is folded under the action of the rotary connection of the square tube, the bottom support frame and the rear wheel, so that the wheelchair is simple in structure and convenient to use; the hinge structure is favorable for packing up the cushion frame, so that the packing area is smaller, and the storage is convenient.

Drawings

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

fig. 2 is a rear view of the present invention;

fig. 3 is a top view of the present invention;

fig. 4 is a perspective view of the present invention;

FIG. 5 is a schematic view of the fixing structure of the present invention;

FIG. 6 is a schematic view of the structure of the limiting groove of the present invention;

in the figure: 1 end support frame, 2 back support frames, 3 handles, 4 cushions, 41 cushion framves, 5 handrails, 6 controllers, 7 side pipes, 8 front wheels, 9 rear wheels, 10 spacing grooves, 11 spacing holes, 12 fixed knot construct, 13 first bracing piece, 14 second bracing piece, 15 connecting rods, 16 outside sleeve pipes, 17 through-holes, 18 inner tubes, 19 springs, 20 fixture blocks, 21 ejector pad, 131 hinge structures, 132 first articulated piece, 133 second articulated piece, 134 bolt, 91 pedal.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a one-key folding mechanism of a wheelchair, as shown in figures 1-6, which comprises a bottom support frame 1, a rear support frame 2, a handle 3, a cushion 4, a handrail 5, a controller 6, a square tube 7, a group of front wheels 8 arranged at both sides of the bottom support frame 1 and a rear wheel 9 arranged at the outer side of the square tube 7, wherein the bottom of the cushion 4 is provided with a cushion frame 41, the inner side wall of the square tube 7 is provided with a group of symmetrical limiting grooves 10, both ends of the limiting grooves 10 are provided with limiting holes 11, fixed structures 12 are clamped in the two opposite limiting holes 11, the top of the fixed structure 12 is fixedly connected with a first support rod 13, the top of the first support rod 13 is provided with a second support rod 14, the bottom of the cushion frame 41 is rotatably connected with a connecting rod 15, the other end of the connecting rod 15 is rotatably connected with the bottom support frame 1, the second support rod 14 can be turned over through the connection part, the occupied area is reduced, and the storage is convenient;

the fixing structure 12 comprises an outer sleeve 16, a group of through holes 17 are formed in one side of the outer sleeve 16, a group of symmetrical inner tubes 18 are arranged inside the outer sleeve 16, a spring 19 is connected between the inner tubes 18, one ends, far away from the spring 19, of the inner tubes 18 are connected with clamping blocks 20, the inner tubes 18 penetrate through the through holes and are fixedly connected with pushing blocks 21, and the end portions of the clamping blocks 20 are matched with the limiting holes 11.

Further, in the above technical solution, the square tube 7 and the bottom support frame 1 are rotatably connected, and the armrest 5 is in contact with the top of the square tube 7;

further, in the above technical solution, the first support rod 13 and the seat cushion frame 41 are connected by a hinge structure 131, and the hinge structure 131 includes a first hinge block 132 disposed at one end of the seat cushion frame 41;

further, in the above technical solution, a second hinge block 133 is arranged inside the first hinge block 132, the second hinge block 133 is fixedly connected with the first support rod 13, and bolts 134 are arranged inside the first hinge block 132 and the second hinge block 133 in a penetrating manner;

further, in the above technical solution, the second support rod 14 is fixedly connected with the handle 3, and the armrest 5 is rotatably connected with the first support rod 13;

further, in the above technical solution, a pedal 91 is disposed at one end of the bottom support frame 1 far from the rear wheel 9.

This practical theory of operation:

referring to the attached drawings 1-6 of the specification, when the wheelchair needs to be folded, the armrest 5 is pulled up under the action of the rotary connection of the armrest 5 and the first support rod 13, the two push blocks 21 of the fixing structure 12 are oppositely pushed from the rear side, the spring 19 is contracted, the fixture block 20 leaves one limiting hole 11 in the limiting groove 10 and enters the other limiting hole 11, the wheelchair is folded under the action of the rotary connection of the square tube 7, the bottom support frame 1 and the rear wheel 9 and the rotary connection of the connecting rod 15 and the bottom support frame 1, the structure is simple, the use is more convenient, when the wheelchair needs to be opened, the two push blocks 21 are pressed, the fixture block 20 enters the upper limiting hole 11, the cushion frame 41 is placed under the action of the hinge structure 131, and the armrest 5 is pulled down to be in contact with the square tube 7.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims (6)

1. The utility model provides a wheelchair one-key folding mechanism, includes end support frame (1), back support frame (2), handle (3), cushion (4), handrail (5), controller (6), side's pipe (7), set up a set of front wheel (8) in end support frame (1) both sides and set up rear wheel (9) in side's pipe (7) outside, its characterized in that: a cushion frame (41) is arranged at the bottom of the cushion (4), a group of symmetrical limiting grooves (10) is arranged on the inner side wall of the square tube (7), limiting holes (11) are formed in two ends of each limiting groove (10), fixed structures (12) are clamped in the two opposite limiting holes (11), a first supporting rod (13) is fixedly connected to the top of each fixed structure (12), a second supporting rod (14) is arranged at the top of each first supporting rod (13), a connecting rod (15) is rotatably connected to the bottom of the cushion frame (41), and the other end of each connecting rod (15) is rotatably connected with the bottom supporting frame (1);

fixed knot constructs (12) including outside sleeve pipe (16), a set of through-hole (17) have been seted up to outside sleeve pipe (16) one side, inside inner tube (18) that are equipped with a set of symmetry of outside sleeve pipe (16), two be connected with spring (19) between inner tube (18), inner tube (18) are kept away from spring (19) one end and are connected with fixture block (20), inner tube (18) run through-hole fixedly connected with ejector pad (21).

2. The wheelchair one-key folding mechanism of claim 1 wherein: square pipe (7) set up to rotate with end support frame (1) and are connected, handrail (5) and square pipe (7) top contact.

3. The wheelchair one-key folding mechanism of claim 1 wherein: the first supporting rod (13) is connected with the seat cushion frame (41) through a hinge structure (131), and the hinge structure (131) comprises a first hinge block (132) arranged at one end of the seat cushion frame (41).

4. A one-touch folding mechanism for a wheelchair as claimed in claim 3, wherein: the first articulated piece (132) is inside to be equipped with articulated piece of second (133), articulated piece of second (133) and first bracing piece (13) fixed connection, the inside through bolt (134) that is equipped with of first articulated piece (132) and articulated piece of second (133).

5. The wheelchair one-key folding mechanism of claim 1 wherein: the second supporting rod (14) is fixedly connected with the handle (3), and the handrail (5) is rotatably connected with the first supporting rod (13).

6. The wheelchair one-key folding mechanism of claim 1 wherein: one end of the bottom support frame (1) far away from the rear wheel (9) is provided with a pedal (91).

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