Foldable wheelchair

Abstract

The utility model relates to the technical field of wheelchairs, and particularly discloses a foldable wheelchair which comprises a seat, a backrest, front wheels, rear wheels and a folding framework, and the folding framework comprises an upper framework used for fixing the seat and the backrest and a lower framework used for fixing the front wheels and the rear wheels; the horizontal support comprises two third rod pieces and a first U-shaped rod piece, one end of each third rod piece is hinged to the connecting base, and the other end of each third rod piece is hinged to the first U-shaped rod piece. The first U-shaped rod piece is hinged to the second rod piece, the top of the first U-shaped rod piece is hinged to a transverse rod of the lower framework, and a handle piece used for pushing the wheelchair to be folded or unfolded is arranged on the first U-shaped rod piece. The operation is relatively simple, and the practicability is relatively high.

Description

Technical Field

[0001] This application relates to the field of wheelchair technology, and more particularly to a foldable wheelchair. Background Technology

[0002] Wheelchairs are the main means of transportation for people with disabilities to get around. To facilitate storage, most wheelchairs are now designed to be foldable.

[0003] In practical use, existing manually folding wheelchairs are inconvenient for users to open because they lack a point of leverage. To solve this problem, this application discloses a foldable wheelchair. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this application discloses a foldable wheelchair.

[0005] To achieve the above objectives, the technical solution adopted in this application is: a foldable wheelchair, including a seat, a backrest, front wheels, rear wheels, and a folding frame. The folding frame includes an upper frame for fixing the seat and backrest, and a lower frame for fixing the front wheels and rear wheels. The upper frame includes a hinged seat frame and a backrest frame. The lower frame includes two sets of linkage mechanisms and a set of horizontal supports. Each set of linkage mechanisms mainly consists of a C-shaped rod, a first member, a second member, and a connecting seat. The rear wheels are connected to the C-shaped rod, and the top of the first member is connected to the... The seat frame is hinged, with its bottom end hinged to the connecting seat, and the front wheel is mounted on the bottom of the connecting seat; one end of the second rod is fixedly connected to the first rod, and the other end is fixedly connected to the C-shaped rod; the horizontal support includes two third rods and a first U-shaped rod, one end of the third rod is hinged to the connecting seat, and the other end is hinged to the first U-shaped rod; the first U-shaped rod is hinged to the second rod; the top of the first U-shaped rod is hinged to the crossbar of the lower frame, and the first U-shaped rod is provided with a handle for pushing the wheelchair to fold or open.

[0006] More preferably, the handle is fixed to the first U-shaped rod by screws.

[0007] A further preferred embodiment is that a storage box is provided between the two rods and the three rods.

[0008] More preferably, the rear end of the second rod is provided with a second U-shaped rod, and the end of the second U-shaped rod is provided with an auxiliary wheel.

[0009] More preferably, armrest frames are hinged to both sides of the backrest frame, and the bottom of the armrest frames is hinged to the seat frame via four rods.

[0010] This application achieves the following beneficial effects:

[0011] This application provides a handle on the first U-shaped rod, which makes it convenient for operators to open or fold the folding wheelchair during use. The operation is relatively simple and has high practicality.

[0012] Other features and advantages of this application will be set forth in the following description and will be apparent in part from the description, or may be learned by practicing the application. The objectives and other advantages of this application may be realized and obtained by means of the structures shown in the description and the accompanying drawings. Attached Figure Description

[0013] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the disclosure of this application and, together with the specification, serve to explain the principles of this disclosure.

[0014] Figure 1 This is a schematic diagram of the overall structure disclosed in this application;

[0015] Figure 2 This is a schematic diagram of the rear structure disclosed in this application;

[0016] Figure 3 This is a partial structural diagram disclosed in this application. Detailed Implementation

[0017] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0018] In the description of this application, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the component or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0019] Example

[0020] To address the problem that existing folding wheelchairs lack a point of leverage, making folding difficult for operators, reference was made to... Figures 1-3As shown, this application discloses a foldable wheelchair, including a seat 10, a backrest 20, front wheels 30, rear wheels 40, and a folding frame 50. The folding frame includes an upper frame 51 for fixing the seat and backrest, and a lower frame 52 for fixing the front and rear wheels. The upper frame includes a seat frame 511 and a backrest frame 512 that are hinged together. The lower frame includes two sets of linkage mechanisms 521 and a set of horizontal supports 522. Each set of linkage mechanisms mainly consists of a C-shaped rod 5211, a first rod 5212, a second rod 5213, and a connecting seat 5214. The rear wheels are connected to the C-shaped rod. The top of the first rod is hinged to the seat frame, and the bottom end is hinged to the connecting seat. The front wheels are mounted on the bottom of the connecting seat. One end of the second rod is fixedly connected to the first rod. The other end is fixed to the C-shaped rod; the horizontal support includes two rods 5221 and a first U-shaped rod 5222. One end of the rod 5221 is hinged to the connecting seat, and the other end is hinged to the first U-shaped rod; the first U-shaped rod is hinged to the rod 2, and the top of the first U-shaped rod is hinged to the crossbar of the lower frame. The first U-shaped rod is provided with a handle 60 for pushing the wheelchair to fold or open. The electric wheelchair of our company's application number 202320711066.6 discloses the folding principle of the above-mentioned wheelchair. The difference between this application and the electric wheelchair is that this application is folded manually by the handle, not by the electric push rod. Correspondingly, the components related to the electric push rod and battery assembly in the electric wheelchair have been eliminated.

[0021] The handle of this application is fixed to the first U-shaped rod by screws 70. This method is relatively simple, convenient and quick to install, and has strong practicality.

[0022] To facilitate the storage of items, this application provides a storage box 80 between the two poles and the three poles. In practice, users can place miscellaneous items in this storage box.

[0023] In addition to the above structure, this application provides a second U-shaped rod 90 at the rear end of the second rod, and an auxiliary wheel 100 at the end of the second U-shaped rod, which enables the wheelchair to move smoothly. Armrest frames 110 are hinged on both sides of the backrest frame, and the bottom of the armrest frame is hinged to the seat frame through the fourth rod, which makes it convenient for the user to place their arms.

[0024] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] The above embodiments are only for illustrating the technical concept and features of this application, and are intended to enable those skilled in the art to understand the content of this application and implement it accordingly. They should not be used to limit the scope of protection of this application. All equivalent changes or modifications made in accordance with the spirit and essence of this application should be included within the scope of protection of this application.

Claims

1. A foldable wheelchair, characterized in that, The system includes a seat, backrest, front wheels, rear wheels, and a folding frame. The folding frame includes an upper frame for securing the seat and backrest, and a lower frame for securing the front and rear wheels. The upper frame includes a hinged seat frame and a backrest frame. The lower frame includes two sets of linkage mechanisms and a horizontal support. Each linkage mechanism mainly consists of a C-shaped rod, a first member, a second member, and a connecting seat. The rear wheels are connected to the C-shaped rod. The top of the first member is hinged to the seat frame, and its bottom is hinged to the connecting seat. The front wheel is mounted on the bottom of the connecting seat; one end of the second rod is fixedly connected to the first rod, and the other end is fixedly connected to the C-shaped rod; the horizontal support includes two third rods and a first U-shaped rod, one end of the third rod is hinged to the connecting seat, and the other end is hinged to the first U-shaped rod; the first U-shaped rod is hinged to the second rod; the top of the first U-shaped rod is hinged to the crossbar of the lower frame, and the first U-shaped rod is provided with a handle for pushing the wheelchair to fold or open.

2. The foldable wheelchair according to claim 1, characterized in that, The handle is fixed to the first U-shaped rod by screws.

3. A foldable wheelchair according to claim 1, characterized in that, A storage box is provided between the two rods and the three rods.

4. A foldable wheelchair according to claim 1, characterized in that, The rear end of the second rod is provided with a second U-shaped rod, and the end of the second U-shaped rod is provided with an auxiliary wheel.

5. A foldable wheelchair according to claim 1, characterized in that, Armrest frames are hinged to both sides of the backrest frame, and the bottom of the armrest frames is hinged to the seat frame via four rods.

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