Wheelchair capable of being folded front and back

Abstract

The wheelchair comprises an underframe, a backrest support, a cushion and a front wheel support, the lower end of the backrest support is hinged to the lower end of the underframe, the rear end of the cushion is hinged to the backrest support, the upper end of the front wheel support is hinged to the front end of the cushion, and the lower end of the front wheel support is hinged to the front end of the underframe. A linkage mechanism is formed by the bottom frame, the backrest support, the cushion and the front wheel support, a fixing lock catch is installed at the lower end of the backrest support, a locking fixing part is arranged at the position, corresponding to the fixing lock catch, of the rear end of the bottom frame, the fixing lock catch is installed on the locking fixing part, positioning and fixing of the wheelchair are achieved, and when the wheelchair is folded, the fixing lock catch and the locking fixing part are unlocked. The backrest support is lifted, the upper end of the backrest support automatically and obliquely rotates downwards under the action of gravity, so that the whole linkage mechanism is folded, folding is more labor-saving and easy and convenient to operate by means of external force, in addition, the front wheel and the rear wheel can be detached, the size after folding can be further reduced, and storage or transportation is more convenient.

Description

Technical Field

[0001] This utility model relates to a medical assistive device, and more particularly to a wheelchair. Background Technology

[0002] Wheelchairs are devices that help people with mobility impairments move and get around. While wheelchairs generally provide convenience for users to travel medium to long distances, they take up a lot of space when stored and are inconvenient to carry and transport. Existing folding wheelchairs, although they can be folded, still have a relatively large volume when folded, and the steps of folding and unfolding are relatively cumbersome and inconvenient to operate. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, this utility model provides a wheelchair that folds forward and backward.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A folding wheelchair includes a base frame, a backrest support, a seat cushion, and a front wheel support. The lower end of the backrest support is hinged to the lower end of the base frame. The rear end of the seat cushion is connected to the backrest support. The upper end of the front wheel support is hinged to the front end of the seat cushion. The lower end of the front wheel support is hinged to the front end of the base frame. A fixing buckle is installed at the lower end of the backrest support. A locking and fixing part is provided at the rear end of the base frame corresponding to the fixing buckle. The fixing buckle is installed on the locking and fixing part to achieve positioning and fixation of the wheelchair.

[0006] The lower end of the backrest bracket is provided with a first crossbar, and the fixing buckle is installed in the middle of the first crossbar. The rear end of the base frame is provided with a corresponding second crossbar, and the locking fixing part is installed in the middle of the second crossbar and corresponds to the position of the fixing buckle.

[0007] A detachable rear wheel is mounted at the rear end of the chassis, and a detachable front wheel is mounted at the lower end of the front wheel bracket.

[0008] The upper end of the backrest bracket is equipped with a pusher.

[0009] The backrest support is equipped with a rotatable handle, and a linkage support bracket is installed between the end of the handle away from the backrest support and the seat cushion.

[0010] The backrest support is equipped with a backrest cushion located above the seat cushion.

[0011] The front wheel bracket is equipped with a foldable foot pedal.

[0012] The beneficial effects of this utility model are as follows: This utility model includes a base frame, a backrest support, a seat cushion, and a front wheel support. The lower end of the backrest support is hinged to the lower end of the base frame, the rear end of the seat cushion is connected to the backrest support, the upper end of the front wheel support is hinged to the front end of the seat cushion, and the lower end of the front wheel support is hinged to the front end of the base frame, so that the base frame, backrest support, seat cushion, and front wheel support form a linkage mechanism. A fixing buckle is installed at the lower end of the backrest support, and a locking fixing part is provided at the rear end of the base frame corresponding to the fixing buckle. The fixing buckle is installed on the locking fixing part to realize the positioning and fixation of the wheelchair. When folding, the fixing buckle is unlocked from the locking fixing part, the backrest support is lifted, and the upper end of the backrest support automatically rotates downwards by gravity, thereby folding the entire linkage mechanism. The folding is easier and simpler by relying on external force. In addition, the front and rear wheels can be detached, which can further reduce the volume after folding and make it easier to store or transport. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is one of the unfolded structural diagrams of this utility model;

[0015] Figure 2 This is one of the unfolded structural diagrams of this utility model;

[0016] Figure 3 This is a folding structure diagram of this utility model. Detailed Implementation

[0017] To make the purpose, technical solutions and advantages of the present invention more clear, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be noted that the embodiments of the present invention and the features therein can be combined with each other unless there is any conflict.

[0018] It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention.

[0019] The following describes some embodiments of the present invention with reference to the accompanying drawings.

[0020] Reference Figure 1-3A folding wheelchair includes a base frame 1, a backrest support 2, a seat cushion 3, and a front wheel support 4. The lower end of the backrest support 2 is hinged to the lower end of the base frame 1. The rear end of the seat cushion 3 is connected to the backrest support 2. The upper end of the front wheel support 4 is hinged to the front end of the seat cushion 3, and the lower end of the front wheel support 4 is hinged to the front end of the base frame 1, forming a linkage mechanism between the base frame 1, the backrest support 2, the seat cushion 3, and the front wheel support 4. A fixing buckle 5 is installed at the lower end of the backrest support 2. A locking part 6 is provided at the rear end of the base frame 1 corresponding to the fixing buckle 5. The fixing buckle 5 is installed on the locking part 6 to achieve positioning and fixation of the wheelchair. When folding, the fixing buckle is unlocked from the locking part, the backrest support is lifted, and the upper end of the backrest support automatically rotates downwards by gravity, thereby folding the entire linkage mechanism. The folding is easier and more convenient by relying on external force.

[0021] The lower end of the backrest bracket 2 is provided with a first crossbar 7, and the fixing buckle 5 is installed in the middle of the first crossbar 7. The rear end of the base frame 1 is provided with a corresponding second crossbar 8, and the locking fixing part 6 is installed in the middle of the second crossbar 8 and corresponds to the position of the fixing buckle 5.

[0022] The rear end of the base frame 1 is equipped with a detachable rear wheel 9, and the lower end of the front wheel bracket 4 is equipped with a detachable front wheel 10, which can further reduce the volume after folding and make it more convenient to store or transport. If there are certain items in the trunk of a private car, making it impossible to put the wheelchair completely even if it is folded, the front wheel 10, rear wheel 11 and the wheelchair body can be placed separately, which can better store the wheelchair.

[0023] like Figure 3 As shown in A, by rotating the front wheel 10 so that the side of the front wheel 10 is close to the wheelchair body, the folded volume can also be reduced, making operation more convenient.

[0024] The base frame 1 is provided with a first mounting hole, the rear wheel 9 is provided with a first insert shaft, the first insert shaft is inserted into the first mounting hole, the lower end of the front wheel bracket 4 is provided with a second mounting hole, the front wheel 10 is provided with a second insert shaft, the second insert shaft is inserted into the second mounting hole, and how the first insert shaft and the second insert shaft are fixed and disassembled in the first mounting hole and the second mounting hole is existing technology.

[0025] The upper end of the backrest bracket 2 is equipped with a pusher part 11.

[0026] The backrest support 2 is equipped with a rotatable handle 12. A linkage support bracket 13 is installed between the end of the handle 12 away from the backrest support 2 and the seat cushion 3. When the linkage mechanism is folded, the handle 12, the linkage support bracket 13, and the positional relationship between the backrest support 2 and the seat cushion 3 change accordingly, and they are folded synchronously.

[0027] The backrest support 2 is equipped with a backrest cushion 14 located above the seat cushion 3.

[0028] The front wheel bracket 4 is equipped with a foldable foot pedal 15. The foot pedal 15 needs to be folded independently, which can further reduce the volume after folding and make it more convenient to store or transport.

[0029] In this invention, the term "multiple" refers to two or more items unless otherwise expressly defined. The term "and / or" as used herein includes any and all combinations of one or more of the related listed items. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0030] It should be noted that when a component is referred to as being "assembled on," "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. 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.

[0032] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A folding wheelchair, comprising a base frame (1), a backrest support (2), a seat cushion (3), and a front wheel support (4), characterized in that... The lower end of the backrest bracket (2) is hinged to the lower end of the base frame (1), the rear end of the seat cushion (3) is hinged to the backrest bracket (2), the upper end of the front wheel bracket (4) is hinged to the front end of the seat cushion (3), the lower end of the front wheel bracket (4) is hinged to the front end of the base frame (1), a fixing buckle (5) is installed at the lower end of the backrest bracket (2), and a locking fixing part (6) is provided at the rear end of the base frame (1) corresponding to the fixing buckle (5). The fixing buckle (5) is installed on the locking fixing part (6) to realize the positioning and fixing of the wheelchair.

2. The wheelchair that folds forward and backward according to claim 1, characterized in that... The lower end of the backrest bracket (2) is provided with a first crossbar (7), the fixing buckle (5) is installed in the middle of the first crossbar (7), the rear end of the base frame (1) is provided with a corresponding second crossbar (8), the locking fixing part (6) is installed in the middle of the second crossbar (8) and corresponds to the position of the fixing buckle (5).

3. The wheelchair that folds forward and backward according to claim 1, characterized in that... The rear end of the base frame (1) is equipped with a detachable rear wheel (9), and the lower end of the front wheel bracket (4) is equipped with a detachable front wheel (10).

4. The wheelchair that folds forward and backward according to claim 1, characterized in that... The upper end of the backrest bracket (2) is equipped with a pusher (11).

5. The wheelchair that folds forward and backward according to claim 1, characterized in that... A rotatable handle (12) is installed on the backrest support (2), and a linkage support bracket (13) is installed between the end of the handle (12) away from the backrest support (2) and the seat cushion (3).

6. The wheelchair that folds forward and backward according to claim 1, characterized in that... The backrest support (2) is positioned above the seat cushion (3) and a backrest cushion (14) is installed thereon.

7. The wheelchair that folds forward and backward according to claim 1, characterized in that... The front wheel bracket (4) is equipped with a foldable foot pedal (15).

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