CN215994537U

CN215994537U - Portable folding wheelchair

Info

Publication number: CN215994537U
Application number: CN202121952967.1U
Authority: CN
Inventors: 王建芬
Original assignee: Foshan Nanhai Deyang Creative Rehabilitation Equipment Co ltd
Current assignee: Foshan Nanhai Deyang Creative Rehabilitation Equipment Co ltd
Priority date: 2021-08-19
Filing date: 2021-08-19
Publication date: 2022-03-11
Anticipated expiration: 2031-08-19

Abstract

The utility model provides a portable folding wheelchair, which comprises a backrest frame, a seat frame, a front frame and a rear frame, wherein the front frame is hinged to the middle position of the lower end of the backrest frame; the utility model adopts the short connecting sheet, the long connecting sheet and the switch sheet to carry out limit control on the backrest frame, the seat frame, the front frame and the rear frame, can eliminate the limit function of the switch sheet when pulling the pull rod, realizes the folding effect of the wheelchair, has the advantages of convenient folding, difficult unfolding after folding, small occupied space of the folded wheelchair, and convenient carrying and carrying.

Description

Portable folding wheelchair

Technical Field

The utility model relates to the field of wheelchairs, in particular to a portable folding wheelchair.

Background

Wheelchairs are chairs equipped with wheels to help replace walking and are classified into electric and manual folding wheelchairs. The wheelchair not only meets the requirements of physical disabilities and mobility-handicapped people for riding instead of walking, but also is more important to facilitate the family members to move and take care of the patients, so that the patients can do physical exercises and participate in social activities by means of the wheelchair. The common wheelchair generally comprises a foldable frame, front and rear wheels, left and right kneepads, a pedal, left and right detachable armrests, a handle brake device, a seat, a backrest, a medical image data bag, a bedpan, a urine receiving bag hook, an electric stand and the like. The hand-operated wheelchair is added with a hand-operated device on the basis of a common wheelchair. The electric wheelchair is additionally provided with an electronic power assisting system on the basis of a common wheelchair, so that the physical consumption of a user is reduced. On the basis of the electric wheelchair, the intelligent wheelchair is additionally provided with positioning movement, standing movement, remote control movement and related Internet + assisted life.

The common folding wheelchair is left and right folded, has unchanged height, can reduce the occupied space and is not beneficial to the transportation and storage of the folding wheelchair.

SUMMERY OF THE UTILITY MODEL

The utility model provides a portable folding wheelchair, which solves the problems that the common folding wheelchair in the background technology is left and right folded, has unchanged height, can reduce the occupied space and is small, and is not beneficial to the transportation and storage of the folding wheelchair.

The technical scheme of the utility model is realized as follows:

a portable folding wheelchair is characterized in that: the backrest comprises a backrest frame, a seat frame, a front frame and a rear frame, wherein the front frame is hinged to the middle position of the lower end of the backrest frame, the rear frame is hinged to the end part of the lower end of the backrest frame, the seat frame is positioned above the front frame, one end of the seat frame is hinged to the backrest frame, the other end of the seat frame is hinged to a short connecting sheet, the lower end of the short connecting sheet is hinged to the middle position of the front frame, the lower end of the front frame is hinged to an S-shaped long connecting sheet, and the other end of the long connecting sheet is hinged to the middle position of the rear frame; and a handle frame for driving the front frame, the rear frame and the seat frame to be folded relative to the backrest frame is arranged below the backrest frame.

Preferably, the handle frame comprises a pull rod and switch pieces fixed at two ends of the pull rod, the upper ends of the switch pieces are hinged to the inner side of the backrest frame, the inner side of a hook-shaped structure at the upper ends of the switch pieces abuts against a connecting rod in the middle of the backrest frame, the lower ends of the switch pieces are provided with limiting grooves, and the switch pieces are movably connected to the positions of pins installed on the inner side of the rear frame through the limiting grooves.

Preferably, the bottom of the front frame and the bottom of the rear frame are both provided with movable wheels.

Preferably, the movable wheels mounted at the bottom of the front frame are universal wheels.

Preferably, the upper part of the backrest frame is provided with a lifting hand pushing frame.

Preferably, the steel pipe sleeves on the two sides of the pushing frame are arranged at the outer positions of the steel pipes on the two sides of the backrest frame, a spring plate is installed in the steel pipe of the backrest frame, a limiting pin is connected to the outer side of the spring plate, the limiting pin penetrates through the side wall of the steel pipe of the backrest frame to extend outwards, a plurality of limiting holes are formed in the position of the side wall of the steel pipe of the pushing frame, and the limiting pin penetrates through the limiting holes to extend outwards.

Preferably, a seat cushion is arranged above the seat frame.

Preferably, an armrest is mounted on the front side of the back rest frame at a position above the seat frame.

Preferably, a foot pedal is connected to the front side of the front frame, and a connecting rod mounted on the front side of the front frame abuts against the lower side of the foot pedal.

Preferably, a brake mechanism for braking the wheelchair is mounted on the push handle frame.

By adopting the technical scheme, the utility model has the beneficial effects that:

the utility model adopts the short connecting sheet, the long connecting sheet and the switch sheet to carry out limit control on the backrest frame, the seat frame, the front frame and the rear frame, can eliminate the limit function of the switch sheet when pulling the pull rod, realizes the folding effect of the wheelchair, has the advantages of convenient folding, difficult unfolding after folding, small occupied space of the folded wheelchair, and convenient carrying and carrying.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

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

FIG. 3 is a side view of the present invention;

FIG. 4 is a perspective view of the handle frame of the present invention;

FIG. 5 is a schematic view of the lifting structure of the joint between the pushing arm frame and the backrest frame.

Wherein:

1. a backrest frame; 2. a seat frame; 3. a rear frame; 4. a front frame; 5. a moving wheel; 6. a foot pedal; 7. a hand pushing frame; 8. a handle frame; 801. a pull rod; 802. a switch sheet; 803. a limiting groove; 9. a handrail; 10. a seat cushion; 11. a brake pad; 12. a long connecting sheet; 13. a short connecting sheet; 14. a spring plate; 15. a spacing pin; 16. and a limiting hole.

Detailed Description

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.

Referring to fig. 1 to 5, a portable folding wheelchair is characterized in that: the backrest comprises a backrest frame 1, a seat frame 2, a front frame 4 and a rear frame 3, wherein the front frame 4 is hinged to the middle position of the lower end of the backrest frame 1, the rear frame 3 is hinged to the end position of the lower end of the backrest frame 1, the seat frame 2 is positioned above the front frame 4, one end of the seat frame 2 is hinged to the backrest frame 1, the other end of the seat frame 2 is hinged to a short connecting sheet 13, the lower end of the short connecting sheet 13 is hinged to the middle position of the front frame 4, the lower end of the front frame 4 is hinged to an S-shaped long connecting sheet 12, and the other end of the long connecting sheet 12 is hinged to the middle position of the rear frame 3; a handle frame 8 for folding the front frame 4, the rear frame 3, and the seat frame 2 with respect to the back frame 1 is provided below the back frame 1.

Specifically, the handle frame 8 includes a pull rod 801 and a switch plate 802 fixed at two ends of the pull rod 801, the upper end of the switch plate 802 is hinged to the inner side of the backrest frame 1, the inner side of a hook-shaped structure at the upper end of the switch plate 802 abuts against a connecting rod at the middle part of the backrest frame 1, the lower end of the switch plate 802 is provided with a limit groove 803, and the switch plate 802 is movably connected to the position of a pin installed at the inner side of the rear frame 3 through the limit groove 803.

Specifically, the bottom of the front frame 4 and the bottom of the rear frame 3 are both provided with moving wheels 5, and the moving wheels 5 arranged at the bottom of the front frame 4 are universal wheels, so that the direction can be conveniently mastered according to the intention of a user, and the wheelchair can be conveniently pushed to a specified position.

Specifically, the pushing handle frame 7 of liftable is installed on the upper portion of back frame 1, wherein, the steel-pipe box of pushing handle frame 7 both sides is established in the outside position of 1 both sides steel pipe of back frame, install a shell fragment 14 in the steel pipe of back frame 1, the outside of shell fragment 14 is connected with spacer pin 15, the spacer pin 15 passes the outside extension of the steel pipe lateral wall of back frame 1, and has seted up a plurality of spacing holes 16 in the steel pipe lateral wall position of pushing handle frame 7, spacer pin 15 passes spacing hole 16 and outwards extends, sets up like this and is used for the crowd to different heights, has the advantage that application scope is wide.

Specifically, a seat cushion 10 is provided above the seat frame 2.

Preferably, an armrest 9 is mounted on the front side of the back rest frame 1 at a position above the seat frame 2.

Specifically, a pedal 6 is connected to the front side of the front frame 4, a connecting rod mounted on the front side of the front frame 4 abuts against the lower side of the pedal 6, wherein the rotation of the end of the pedal 6 connected to the front frame 4 can be realized, that is, when the wheelchair is folded, the pedal 6 can be received to the inner side of the front frame 4, and the space occupation is further reduced.

Specifically, the hand pushing frame 7 is provided with a brake mechanism for braking the wheelchair, and specifically comprises a rotatable brake pad 11 mounted at the lower end of the rear frame 3, a cord connected to the brake pad 11, and a brake handle mounted on the hand pushing frame 7, and the structure and the working principle of the part belong to conventional technical means in the prior art, and are not described herein in detail.

The working principle is as follows:

in the unfolded state of the folding wheelchair, as shown in fig. 3, the upper end of the rear frame 3 inclines towards the center direction of the seat frame 2, the lower end of the backrest frame 1 moves to the lower part of the seat frame 2 along with the hinged point of the upper end of the rear frame 3, so that the upper end of the backrest frame 1 keeps an upright state, the upper end of the front frame 4 is hinged to the upper end of the backrest frame 1, the lower end of the front frame 4 is connected to the rear frame 3 through the long connecting sheet 12, the stability of the front frame 4 can be realized, after the front frame 4 is stable, the seat frame 2 keeps horizontal through the action of the short connecting sheet 13, and the whole wheelchair realizes the stable effect; when folding is needed, the pull rod 801 is pulled to rotate the switch piece 802 around the hinge point of the switch piece 802, at this time, the limit groove 803 below the switch piece 802 is separated from the pin inside the rear frame 3, and after the rotation, the connecting rod installed below the backrest frame 1 is pulled by using the hook-shaped structure end at the upper end, at this time, the lower end of the backrest frame 1 moves backwards and drives the rear frame 3 hinged with the backrest frame 1 to rotate anticlockwise in the state shown in fig. 3, that is, the hinge point of the backrest frame 1 and the rear frame 3 moves backwards, at this time, under the action of the long connecting piece 12, the front frame 4 can rotate upwards around the hinge point of the front frame and drive the seat frame 2 to rotate upwards around the hinge point of the front frame under the action of the short connecting piece 13, so that the seat frame 2 gradually approaches the backrest frame 1, and after the rotation to the limit position, the wheelchair completes the folding work, the user can carry the folded wheelchair conveniently.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A portable folding wheelchair is characterized in that: the backrest comprises a backrest frame (1), a seat frame (2), a front frame (4) and a rear frame (3), wherein the front frame (4) is hinged to the middle position of the lower end of the backrest frame (1), the rear frame (3) is hinged to the end position of the lower end of the backrest frame (1), the seat frame (2) is positioned above the front frame (4), one end of the seat frame (2) is hinged to the backrest frame (1), the other end of the seat frame (2) is hinged to a short connecting sheet (13), the lower end of the short connecting sheet (13) is hinged to the middle position of the front frame (4), the lower end of the front frame (4) is hinged to an S-shaped long connecting sheet (12), and the other end of the long connecting sheet (12) is hinged to the middle position of the rear frame (3); a handle frame (8) for driving the front frame (4), the rear frame (3) and the seat frame (2) to be folded relative to the backrest frame (1) is arranged below the backrest frame (1).

2. A portable, collapsible wheelchair as claimed in claim 1, wherein: handle frame (8) include pull rod (801) and fix switch piece (802) at pull rod (801) both ends, the upper end of switch piece (802) articulates in the inboard position of back frame (1), the inboard butt of the type structure that colludes of switch piece (802) upper end is on the connecting rod at back frame (1) middle part, spacing groove (803) have been seted up to switch piece (802) lower extreme, switch piece (802) are through spacing groove (803) swing joint at the pin position of back frame (3) inboard installation.

3. A portable, collapsible wheelchair as claimed in claim 1, wherein: the bottom of the front frame (4) and the bottom of the rear frame (3) are both provided with movable wheels (5).

4. A portable, collapsible wheelchair as claimed in claim 3, wherein: the moving wheels (5) arranged at the bottom of the front frame (4) are universal wheels.

5. A portable, collapsible wheelchair as claimed in claim 1, wherein: the upper part of the backrest frame (1) is provided with a lifting push frame (7).

6. A portable, collapsible wheelchair as claimed in claim 5, wherein: the steel pipe cover of pushing hands frame (7) both sides is established in the outside position of back frame (1) both sides steel pipe, install a shell fragment (14) in the steel pipe of back frame (1), the outside of shell fragment (14) is connected with spacer pin (15), the steel pipe lateral wall that spacer pin (15) passed back frame (1) outwards extends, and has seted up a plurality of spacing holes (16) in the steel pipe lateral wall position of pushing hands frame (7), spacer pin (15) pass spacing hole (16) outwards extend.

7. A portable, collapsible wheelchair as claimed in claim 1, wherein: a seat cushion (10) is arranged above the seat frame (2).

8. A portable, collapsible wheelchair as claimed in claim 1, wherein: the front side of the backrest frame (1) is provided with an armrest (9) at a position above the seat frame (2).

9. A portable, collapsible wheelchair as claimed in claim 1, wherein: the front side of the front frame (4) is connected with a pedal (6), and the lower part of the pedal (6) is abutted with a connecting rod arranged on the front side of the front frame (4).

10. A portable, collapsible wheelchair as claimed in claim 5, wherein: and a brake mechanism for braking the wheelchair is arranged on the hand pushing frame (7).