CN214285476U - Portable folding wheelchair - Google Patents

Abstract

The utility model provides a portable folding wheelchair, which comprises a top frame, a bottom frame, a fixed vertical frame, a folding vertical frame and a folding mechanism, wherein the top frame and the bottom frame are respectively arranged at the top and the bottom of the portable folding wheelchair and are fixedly connected through a left fixed vertical frame and a right fixed vertical frame; the folding vertical frames are respectively arranged on the left side and the right side of the portable folding wheelchair and are respectively rotationally connected with the top frame and the underframe through a folding mechanism; the folding vertical frame is unfolded and folded through a folding mechanism; a fixed rod is connected between the fixed vertical frames, and a cushion is rotatably connected on the fixed rod; when the wheelchair is used, the folding vertical frame can be unfolded and forms a main supporting piece of the wheelchair together with the fixed vertical frame, and the cushion is unfolded and kept fixed under the limitation of external force and the top frame; when the wheelchair is not used, the folding stand can be folded at the inner side of the wheelchair, and the cushion can be folded at the backrest, so that the occupied area of the wheelchair is reduced, and the wheelchair is convenient to carry and transport.

Description

Portable folding wheelchair

Technical Field

The utility model relates to a wheelchair field particularly, involves a portable folding wheelchair.

Background

The wheelchair provides great convenience for people with mobility disabilities, but is inconvenient to carry and transport due to large volume, so that the use of the wheelchair is limited to a certain extent. The folding wheelchair solves the problem of large occupied space of the wheelchair, is convenient for a user to carry, but the folding structure of the existing folding wheelchair is complex, the operation is inconvenient, the folding part is seriously damaged after multiple operations, and the service life is short.

Disclosure of Invention

In view of this, the utility model provides a portable folding wheelchair solves the wheelchair structure among the prior art complicacy, the inconvenient scheduling problem of operation.

The utility model provides a portable folding wheelchair, which comprises a top frame, a bottom frame, a fixed vertical frame, a folding vertical frame and a folding mechanism;

the top frame and the bottom frame are respectively arranged at the top and the bottom of the portable folding wheelchair and are fixedly connected through the fixed vertical frame;

the folding vertical frame is respectively in rotating connection with the top frame and the bottom frame through the folding mechanism, so that the folding mechanism can rotate relative to the top frame and the bottom frame.

Further optionally, the roof rack comprises a left section and a right section, which are connected through a transition section, the left section and the right section of the roof rack are used for connecting the fixed vertical frame, and the arc section of the roof rack is fixed with a backrest.

Further optionally, the underframe comprises a left section and a right section, and is connected by a transition section, and the left section and the right section of the underframe are used for connecting the fixed vertical frame.

Further optionally, the fixed vertical frame comprises a first fixed vertical frame and a second fixed vertical frame, the first fixed vertical frame is arranged on the left side of the portable folding wheelchair, the upper end of the first fixed vertical frame is connected with the left section of the top frame, and the lower end of the first fixed vertical frame is connected with the left section of the bottom frame; the second fixed vertical frame is arranged on the right side of the portable folding wheelchair, the upper end of the second fixed vertical frame is connected with the right section of the top frame, and the lower end of the second fixed vertical frame is connected with the right section of the underframe.

Further optionally, the first fixed stand and the second fixed stand are provided with a second fixed rod, and a seat cushion is rotatably provided on the second fixed rod.

Further optionally, the folding vertical frame comprises a first folding vertical frame and a second folding vertical frame, the first folding vertical frame is arranged on the left side of the portable folding wheelchair, the upper end of the first folding vertical frame is connected with the left section of the top frame through a folding mechanism, and the lower end of the first folding vertical frame is connected with the left section of the bottom frame through a folding mechanism; the second folding vertical frame is arranged on the right side of the portable folding wheelchair, the upper end of the second folding vertical frame is connected with the right section of the top frame through a folding mechanism, and the lower end of the second folding vertical frame is connected with the right section of the bottom frame through a folding mechanism.

Further optionally, the folding mechanism includes a folding member a, a folding member B, and a folding member C, the folding member a and the folding member B are connected through a rotating structure, and the folding member a can move relative to the folding member B under an external force; the folding member C is used for fixing the folding member a and the folding member B, thereby limiting the movement of the folding member a relative to the folding member B.

Further optionally, the upper end and the lower end of the first folding vertical frame are respectively connected with the folding member a, and the left side section of the top frame and the left side section of the bottom frame are respectively connected with the folding member B; under the action of external force, when the first folding vertical frame is close to the backrest, the folding piece A moves relative to the folding piece B, and then the first folding vertical frame is folded on the inner side of the portable folding wheelchair.

Further optionally, the upper end and the lower end of the second folding vertical frame are respectively connected with the folding member a, and the right section of the top frame and the right section of the bottom frame are respectively connected with the folding member B; when the second folding vertical frame is close to the backrest under the action of external force, the folding piece A moves relative to the folding piece B, and then the second folding vertical frame is folded on the inner side of the portable folding wheelchair.

Further optionally, the folding leg is far away from the backrest under the action of external force, so that the first folding leg and the second folding leg are unfolded, and the folding member C acts on the folding member a and the folding member B, wherein the folding member a is fixed relative to the folding member B.

The utility model simplifies the structure of the folding wheelchair, and the fixing vertical frame is connected with the top frame and the bottom frame of the wheelchair to form a main supporting piece of the wheelchair; the folding vertical frame is rotationally connected with the top frame and the bottom frame of the wheelchair through the folding mechanism, the unfolding or folding of the wheelchair is realized through controlling the folding mechanism, the operation is convenient, the size after the folding is reduced, and the carrying and the transportation are convenient.

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. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

FIG. 1 is a schematic structural view of an embodiment of the portable foldable wheelchair according to the present invention when unfolded;

FIG. 2 is a schematic structural view of the portable foldable wheelchair according to the embodiment of the present invention;

in the figure:

1-a top frame; 11-the top frame left section; 12-the top frame right section; 13-a top frame transition section; 14-a limit structure; 15-backrest;

2-a chassis; 21-chassis left section; 22-undercarriage right side section; 23-undercarriage transition section; 24-a first fixation rod; 25-a basket;

3-fixing a vertical frame; 31-a first stationary stand; 32-a second stationary stand; 33-a second fixing bar; 34-a cushion;

4-folding the vertical frame; 41-a first folding stand; 411-the upper end of the first folding stand; 412-first folding stand lower end; 42-a second folding stand; 421-the upper end of the second folding stand; 422-the lower end of the second folding stand; 43-foot pedal;

5-a folding mechanism; 51-fold a; 52-fold B; 53-fold C; 54-a fixation hole; 55-a first folding mechanism; 56-a second folding mechanism; 57-a third folding mechanism; 58-a fourth folding mechanism;

6-pulley.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. 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 terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the embodiments of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise, and "a plurality" typically includes at least two, but does not exclude the presence of at least one.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.

The utility model provides a portable folding wheelchair, wheelchair roof-rack and chassis are connected through fixed grudging post, constitute main bearing structure, pass through folding mechanism with folding support again and be connected, when folding mechanism expandes, increase the usage space of wheelchair, when folding mechanism is folding, reduce the occupation space of wheelchair, the operation of being convenient for, portability and transportation.

Examples

< integral Structure >

As shown in fig. 1 and 2, the portable folding wheelchair provided by the present embodiment comprises a top frame 1, a bottom frame 2, a fixed stand 3, a folding stand 4 and a folding mechanism 5; the top frame 1 and the bottom frame 2 are connected through a fixed vertical frame 3 to form a frame of the folding wheelchair; the top frame 1 and the bottom frame 2 are both in a frame shape and play a role in bearing and supporting; the end parts of the top frame 1 and the bottom frame 2 are rotatably connected with the folding vertical frame 4 through a folding mechanism 5, so that the folding vertical frame 4 is unfolded and folded.

Preferably, the roof rack 1 comprises a roof rack left side section 11, a roof rack right side section 12 and a roof rack transition section 13; the top frame left side section 11 and the top frame right side section 12 are connected through a top frame transition section 13; the top frame transition section 13 can be used for fixing the backrest 15; the top frame 1 further has a limiting structure 14, which is arranged at the bottom of the top frame 1 and used for limiting the cushion 34.

Preferably, the chassis 2 comprises a chassis left section 21, a chassis right section 22 and a chassis transition section 23, the chassis left section 21 and the chassis right section 22 are connected by the chassis transition section 23; the underframe 2 is also provided with a first fixing rod 24, and a basket 25 is fixed at the tops of the underframe transition section 23 and the first fixing rod 24; pulleys 6 are fixed at the bottoms of the left side and the right side of the first fixing rod 24.

Preferably, the fixed stand 3 comprises a first fixed stand 31 and a second fixed stand 32, the first fixed stand 31 is arranged at the left side of the portable folding wheelchair; specifically, the upper end of the first fixed stand 31 is fixedly connected with the top frame left section 11, and the lower end of the first fixed stand 31 is fixedly connected with the bottom frame left section 21; the second fixed stand 32 is arranged at the right side of the portable folding wheelchair; the upper end of the second fixed stand 32 is fixedly connected to the top frame right section 12, and the lower end of the second fixed stand 32 is fixedly connected to the bottom frame right section 22.

Preferably, a second fixing rod 33 is connected between the first fixing stand 31 and the second fixing stand 32; a seat cushion 34 is rotatably connected to the second fixing lever 33; when the wheelchair is folded, the seat cushion 34 rotates clockwise and approaches the backrest 15; when the wheelchair is unfolded, when a user acts on the seat cushion 34 downwards, the seat cushion 34 rotates anticlockwise and is far away from the backrest 15, the front end of the seat cushion 34 is acted by a downward force, the rear end of the seat cushion 34 is limited downwards by the limiting structure 14, and at the moment, the seat cushion 34 stops rotating.

Preferably, the folding stand 4 comprises a first folding stand 41 and a second folding stand 42, the first folding stand 41 being disposed on the left side of the portable folding wheelchair; the second folding vertical frame 42 is arranged at the right side of the portable folding wheelchair; pulleys 6 are fixed at the bottoms of the first folding vertical frame 41 and the second folding vertical frame 42; the first folding stand 41 and the second folding stand 42 can be folded to the inside of the wheelchair toward the backrest by an external force.

Preferably, the bottom of each of the first folding stand 41 and the second folding stand 42 is rotatably connected with a pedal 43; when the wheelchair is unfolded, the pedal 43 rotates to the horizontal position around the first folding stand 41 and the second folding stand 42, so that a user can conveniently step on the wheelchair; when the wheelchair is folded, the pedals 43 rotate around the first folding stand 41 and the second folding stand 42 to be vertical, and the occupied space of the wheelchair is reduced.

< folding mechanism >

As shown in fig. 1 and 2, the folding mechanism 5 provided in the present embodiment includes a first folding mechanism 55, a second folding mechanism 56, a third folding mechanism 57, and a fourth folding mechanism 58, each of the first folding mechanism 55, the second folding mechanism 56, the third folding mechanism 57, and the fourth folding mechanism 58 has a folding member a, a folding member B, and a folding member C, and the folding member a and the folding member B are rotatably connected; the folding piece A and the folding piece B are both provided with fixing holes 54, and when the wheelchair is unfolded, the folding piece C is matched with the fixing holes 54 to limit the rotation of the folding piece A and the folding piece B; when the wheelchair is folded, the folding member C is disengaged from the fixing hole 54, and the folding members A and B can rotate.

Specifically, the folding member a of the first folding mechanism 55 is fixedly connected to the top chassis left section 11, and the folding member a of the second folding mechanism 56 is fixedly connected to the bottom chassis left section 21; the folding member B of the first folding mechanism 55 is fixedly connected with the upper end of the first folding vertical frame 41, and the folding member B of the second folding mechanism 56 is fixedly connected with the lower end of the first folding vertical frame 41, so that the first folding vertical frame 41 is rotatably connected with the top frame 1 and the bottom frame 2; under the action of external force, the first folding upright frame 41 approaches to the backrest 15, the folding piece A moves relative to the folding piece B, and then the first folding upright frame 41 is folded on the inner side of the portable folding wheelchair; the first folding leg 41 is moved away from the backrest 15 by an external force, so that the first folding leg 41 is unfolded and the folding member C acts on the folding member a and the folding member B, and the folding member a is fixed with respect to the folding member B.

The folding piece A of the third folding mechanism 57 is fixedly connected with the top frame right side section 12, and the folding piece A of the fourth folding mechanism 58 is fixedly connected with the bottom frame right side section 22; the folding member B of the third folding mechanism 57 is fixedly connected with the upper end of the second folding vertical frame 42, and the folding member B of the fourth folding mechanism 58 is fixedly connected with the lower end of the second folding vertical frame 42, so that the second folding vertical frame 42 is rotatably connected with the top frame 1 and the bottom frame 2; under the action of external force, the second folding vertical frame 42 approaches to the backrest 15, the folding piece A moves relative to the folding piece B, and then the second folding vertical frame 42 is folded on the inner side of the portable folding wheelchair; the second folding standing frame 42 is far away from the backrest 15 under the action of external force, so that the second folding standing frame 42 is unfolded, the folding piece C acts on the folding piece A and the folding piece B, and the folding piece A is fixed relative to the folding piece B.

< working principle >

The wheelchair folding principle that this embodiment provided is as follows:

the folding piece C of the first folding mechanism is separated from the fixing holes of the folding piece A and the folding piece B, the folding piece C of the second folding mechanism is separated from the fixing holes of the folding piece A and the folding piece B, and the first folding vertical frame is rotated towards the backrest of the wheelchair to realize folding;

the folded piece C of the third folding mechanism is separated from the fixing holes of the folded piece A and the folded piece B, the folded piece C of the fourth folding mechanism is separated from the fixing holes of the folded piece A and the folded piece B, the second folding vertical frame is rotated to the backrest of the wheelchair, and then the second folding vertical frame is folded.

After the first folding vertical frame is folded, the first folding vertical frame and the first fixed vertical frame can be bound together by a safety belt, after the second folding vertical frame is folded, the first folding vertical frame and the second folding vertical frame can be bound together by a safety belt, and the first folding vertical frame and the second folding vertical frame are prevented from being opened automatically when the wheelchair is placed or transported.

The wheelchair that this embodiment provided expandes the principle as follows:

rotating the first folding vertical frame to the left side of the wheelchair, arranging a folding piece C of the first folding mechanism in fixing holes of a folding piece A and a folding piece B, and arranging a folding piece C of the second folding mechanism in fixing holes of the folding piece A and the folding piece B, so that the first folding vertical frame is unfolded;

and rotating the second folding vertical frame to the right side of the wheelchair, arranging a folding piece C of the third folding mechanism in fixing holes of a folding piece A and a folding piece B, and arranging a folding piece C of the fourth folding mechanism in fixing holes of the folding piece A and the folding piece B, so that the fourth folding vertical frame is unfolded.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (9)

1. A portable folding wheelchair, comprising: the device comprises a top frame, a bottom frame, a fixed vertical frame, a folding vertical frame and a folding mechanism;

the top frame and the bottom frame are respectively arranged at the top and the bottom of the portable folding wheelchair and are fixedly connected through the fixed vertical frame;

the folding vertical frame is respectively connected with the top frame and the bottom frame in a rotating way through the folding mechanism, so that the folding vertical frame can rotate relative to the top frame and the bottom frame.

2. The portable folding wheelchair as claimed in claim 1, wherein said top frame comprises a left section and a right section, and is connected by a transition section, said left and right sections of said top frame being adapted to connect to said stationary uprights, said circular arc section of said top frame being adapted to secure a backrest.

3. The portable folding wheelchair as claimed in claim 2, wherein said chassis comprises a left section and a right section and is connected by a transition section, said left and right sections of said chassis being adapted to connect to said stationary stand.

4. The portable folding wheelchair as claimed in claim 3, wherein the fixed stand comprises a first fixed stand and a second fixed stand, the first fixed stand is disposed at the left side of the portable folding wheelchair, the upper end of the first fixed stand is connected with the left section of the top frame, and the lower end of the first fixed stand is connected with the left section of the bottom frame; the second fixed vertical frame is arranged on the right side of the portable folding wheelchair, the upper end of the second fixed vertical frame is connected with the right section of the top frame, and the lower end of the second fixed vertical frame is connected with the right section of the underframe.

5. The portable folding wheelchair as claimed in claim 4, wherein a second fixing rod is connected between the first and second fixing stands, and a seat cushion is rotatably connected to the second fixing rod.

6. The portable folding wheelchair as claimed in claim 4, wherein the folding stands comprise a first folding stand and a second folding stand, the first folding stand is disposed at the left side of the portable folding wheelchair, the upper end of the first folding stand is connected with the left section of the top frame through the folding mechanism, and the lower end of the first folding stand is connected with the left section of the bottom frame through the folding mechanism; the second folding vertical frame is arranged on the right side of the portable folding wheelchair, the upper end of the second folding vertical frame is connected with the right section of the top frame through the folding mechanism, and the lower end of the second folding vertical frame is connected with the right section of the underframe through the folding mechanism.

7. The portable folding wheelchair as claimed in claim 6, wherein the folding mechanism comprises a folding member A, a folding member B and a folding member C, the folding member A and the folding member B are connected through a rotating structure, and the folding member A can move relative to the folding member B under the action of external force; the folding member C is used for fixing the folding member a and the folding member B, thereby limiting the movement of the folding member a relative to the folding member B.

8. The portable folding wheelchair as claimed in claim 7, wherein the upper and lower ends of the first folding stand are connected to the folding member a, respectively, and the left sections of the top frame and the bottom frame are connected to the folding member B, respectively; when the first folding vertical frame is close to the backrest under the action of external force, the folding piece A moves relative to the folding piece B, and then the first folding vertical frame is folded on the inner side of the portable folding wheelchair.

9. The portable folding wheelchair as claimed in claim 7, wherein the upper and lower ends of the second folding stand are respectively connected to the folding member a, and the right section of the top frame and the right section of the bottom frame are respectively connected to the folding member B; when the second folding vertical frame is close to the backrest under the action of external force, the folding piece A moves relative to the folding piece B, and then the second folding vertical frame is folded on the inner side of the portable folding wheelchair.

Images