阅读说明：本技术 后轮可以调节角度的轮椅 (Wheelchair with adjustable angle of rear wheel ) 是由 张峻翊 于 2019-10-25 设计创作，主要内容包括：本发明涉及一种后轮可以调节角度的轮椅,包括椅座框架、脚踏板、靠背架,靠背架上设有把手；椅座框架的前部上表面开设有椅座位,后部下表面开设有驱动腔室,椅座框架的左、右、后三侧分别贴设有太阳能光伏电池板,椅座框架下方的左、右两侧分别设有主驱动轮,两个主驱动轮之间通过连接轴相连,椅座框架上设有驱动连接轴转动的驱动马达,主驱动轮包括轮框、主轮胎,轮框内环形阵列式设有至少四个"L"形金属轮子龙骨,主轮胎为大齿痕橡胶轮胎,主轮胎内设有减震器,主驱动轮的后方设有后轮,后轮转动安装于后支撑架上,椅座框架上还设有调节后支撑架倾斜角度的角度调节部件。本发明后轮可以调节角度。(The invention relates to a wheelchair with adjustable rear wheels, which comprises a seat frame, a pedal plate and a backrest frame, wherein a handle is arranged on the backrest frame; the chair seat has been seted up to the anterior upper surface of seat support frame, the drive cavity has been seted up to the rear portion lower surface, the left side of seat support frame, the right side, the back three sides is pasted respectively and is equipped with solar photovoltaic cell panel, the left side of seat support frame below, the right side both sides are equipped with main drive wheel respectively, link to each other through the connecting axle between two main drive wheels, be equipped with drive connecting axle pivoted actuating motor on the seat support frame, main drive wheel includes the wheel frame, the main tire, annular array is equipped with four at least "L" shape metal wheel fossil fragments in the wheel frame, the main tire is big tooth trace rubber tire, be equipped with the bumper shock absorber in the main tire, the rear of main drive wheel is equipped with the rear wheel, the rear wheel rotates and installs on. The rear wheel of the invention can be adjusted in angle.)

1. The utility model provides a wheelchair that rear wheel can angle regulation, includes seat support frame, running-board, back frame, be equipped with the handle on the back frame, its characterized in that:

the solar chair comprises a chair seat frame, a chair seat, a driving cavity, a solar photovoltaic cell panel, a driving shaft, a driving motor, a rear wheel, a shock absorber, a rear wheel, a rear support frame, a hinge pin, a driving shaft, a connecting shaft, a driving motor, a driving wheel, a main tire, a rear wheel, a rear support frame, a hinge pin, a connecting shaft, a driving motor, a driving shaft, a driving motor and a driving shaft, wherein the driving shaft is arranged on the upper surface of the front part of the chair seat frame, the chair seat frame is also provided with an angle adjusting part for adjusting the inclination angle of the rear supporting frame.

2. The wheelchair of claim 1 in which the rear wheels are angularly adjustable: the rear wheel is a small tooth trace rubber tire.

3. The wheelchair of claim 1 in which the rear wheels are angularly adjustable: the angle adjusting component comprises a plurality of first screw holes symmetrically formed in the left side wall and the right side wall of the driving cavity, a second screw hole formed in the rear support frame and locking bolts locked on the first screw holes and the second screw holes, the first screw holes are arranged in a circular arc shape, and the distance between each first screw hole and the pin shaft is equal.

4. The wheelchair of claim 1 in which the rear wheels are angularly adjustable: the angle adjusting part comprises arc-shaped sliding grooves symmetrically arranged on left and right side walls of the driving cavity and pulleys symmetrically clamped in the arc-shaped sliding grooves, the two pulleys are connected at one end close to each other through a connecting rod, one end far away from each other is fixedly connected with the rear supporting frame, a first electric telescopic rod driving the pulleys to slide along the arc-shaped sliding grooves is arranged in the driving cavity, the free end of a piston rod of the first electric telescopic rod is hinged to the middle end of the connecting rod, and the other end of the piston rod is hinged to the front wall of the driving cavity.

5. The wheelchair of claim 4 in which the rear wheels are angularly adjustable: the lower end of the backrest frame is rotationally connected with the seat frame through a pin shaft, the backrest frame is connected with the seat frame through a second electric telescopic rod, and the upper end and the lower end of the second electric telescopic rod are respectively hinged with the backrest frame and the seat frame.

6. The wheelchair of claim 5 in which the rear wheels are angularly adjustable: be equipped with the gyroscope in the seat support frame, one side of seat support frame is equipped with a plurality of control button, the rear portion of seat support frame is equipped with the control box, locate main control chip, battery charge controller, battery in the control box, battery charge controller's input and solar photovoltaic cell panel are connected, and its output is connected with the battery, gyroscope, control button, CD-ROM drive motor, first electric telescopic handle, second electric telescopic handle all link to each other with main control chip, and the battery supplies power for gyroscope, control button, CD-ROM drive motor, first electric telescopic handle, second electric telescopic handle through main control chip.

7. The wheelchair of claim 1 in which the rear wheels are angularly adjustable: the solar photovoltaic cell panel is a polycrystalline silicon photovoltaic cell panel.

Technical Field

The invention belongs to the technical field of wheelchairs, and particularly relates to a wheelchair with a rear wheel capable of adjusting an angle.

Background

The wheelchair is a chair provided with wheels, is an important moving tool for the rehabilitation, turnover transportation, treatment and outgoing activities of wounded, patients and disabled at home, not only meets the requirements of physically disabled people 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. Chinese patent CN208808882U discloses a wheel chair with help seeking function, which comprises a bracket, a large wheel and a direction wheel; a seat plate is arranged above the support, and a gravity sensor is arranged in the seat plate; the bracket is positioned on the seat plate and is fixedly connected with a hand bracket, and a control box is fixedly connected on the hand bracket; the left side of the bracket is vertically and fixedly connected with a backrest plate; back board left side fixedly connected with warning light and bee calling organ, warning light and bee calling organ and portable power source electric connection. However, the conventional wheelchair has the defects of poor stability, difficulty in adjusting the angle of the wheelchair body, inconvenience in charging and the like when the wheelchair moves on an unstable ground.

Therefore, based on the problems, the wheelchair with the angle-adjustable rear wheels has important practical significance.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a wheelchair with a rear wheel with an adjustable angle.

The invention is realized by adopting the following technical scheme:

the wheelchair with the rear wheels capable of adjusting the angle comprises a seat frame, a pedal plate and a backrest frame, wherein a handle is arranged on the backrest frame; the solar chair comprises a chair seat frame, a chair seat, a driving cavity, a solar photovoltaic cell panel, a driving shaft, a driving motor, a rear wheel, a shock absorber, a rear wheel, a rear support frame, a hinge pin, a driving shaft, a connecting shaft, a driving motor, a driving wheel, a main tire, a rear wheel, a rear support frame, a hinge pin, a connecting shaft, a driving motor, a driving shaft, a driving motor and a driving shaft, wherein the driving shaft is arranged on the upper surface of the front part of the chair seat frame, the chair seat frame is also provided with an angle adjusting part for adjusting the inclination angle of the rear supporting frame.

Preferably, the rear wheel is a small tooth trace rubber tire.

Preferably, the angle adjusting part comprises a plurality of first screw holes symmetrically formed in the left side wall and the right side wall of the driving cavity, a second screw hole formed in the rear support frame, and locking bolts locked in the first screw holes and the second screw holes, the first screw holes are arranged in a circular arc shape, and the distance between each first screw hole and the pin shaft is equal.

Further preferably, the angle adjusting part comprises arc-shaped sliding grooves symmetrically arranged on the left side wall and the right side wall of the driving cavity, and pulleys clamped in the arc-shaped sliding grooves in a sliding mode, the two pulleys are connected with each other through a connecting rod at one ends close to each other, the other ends far away from each other are fixedly connected with the rear supporting frame, a first electric telescopic rod driving the pulleys to slide along the arc-shaped sliding grooves is arranged in the driving cavity, the free end of a piston rod of the first electric telescopic rod is hinged to the middle end of the connecting rod, and the other end of the piston rod of the first.

Further preferably, the lower end of the back rest frame is rotatably connected with the seat frame through a pin shaft, the back rest frame is connected with the seat frame through a second electric telescopic rod, and the upper end and the lower end of the second electric telescopic rod are respectively hinged with the back rest frame and the seat frame.

Further preferred, be equipped with the gyroscope in the seat support frame, one side of seat support frame is equipped with control button, the rear portion of seat support frame is equipped with the control box, main control chip, battery charge controller, battery are located to the control box, battery charge controller's input and solar photovoltaic cell panel are connected, and its output is connected with the battery, gyroscope, control button, CD-ROM drive motor, first electric telescopic handle, second electric telescopic handle all link to each other with main control chip, and the battery supplies power for gyroscope, control button, CD-ROM drive motor, first electric telescopic handle, second electric telescopic handle through main control chip.

Preferably, the solar photovoltaic cell panel is a polycrystalline silicon photovoltaic cell panel.

The invention has the advantages and positive effects that:

1. according to the wheelchair, the solar photovoltaic cell panels are respectively adhered to the left side, the right side and the rear side of the seat frame and used for collecting solar energy in the environment and converting the solar energy into electric energy, emission is reduced, and an energy-saving effect is achieved.

2. The main driving wheel comprises a wheel frame and a main tire, wherein at least four L-shaped metal wheel keels are arranged in the wheel frame in an annular array mode, the main tire is a large-tooth-mark rubber tire, the wheel keels made of L-shaped metal sheets are used for performing step-by-step treatment on steps on a wheelchair, and the large-tooth-mark rubber tire is used for wrapping the main tire to increase the functions of shock absorption and skid resistance.

3. In the invention, the rear wheel is arranged behind the main driving wheel, and a user can adjust the inclination angles of the rear supporting frame and the rear wheel through the angle adjusting component, so that the wheelchair can adjust the angle at any time.

4. According to the invention, the inclination angles of the rear support frame and the rear wheel can be indirectly adjusted through the first electric telescopic rod, so that the angle of the wheelchair can be adjusted at any time, the operation is convenient, trouble and labor are saved, the angle of the rear wheel can be actively adjusted when the wheelchair encounters unstable ground, the wheelchair keeps balance and does not turn over, and the wheelchair is convenient to go up steps and down steps.

5. According to the invention, the included angle between the backrest frame and the chair seat frame can be adjusted according to the requirements of users, the operation is convenient, the trouble and the labor are saved, and the comfort level of the users is improved.

Drawings

The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and examples, but it should be understood that these drawings are designed for illustrative purposes only and thus do not limit the scope of the present invention. Furthermore, unless otherwise indicated, the drawings are intended to be illustrative of the structural configurations described herein and are not necessarily drawn to scale.

FIG. 1 is a schematic front view of the structure of embodiment 1;

FIG. 2 is a schematic front view of the rear wheel of FIG. 1 in an angle-adjusted condition;

FIG. 3 is a schematic front view of the structure of embodiment 2;

FIG. 4 is a schematic longitudinal cross-sectional view of the structure of FIG. 3;

FIG. 5 is a schematic view of the cross-section taken along the line A-A in FIG. 3;

FIG. 6 is a schematic cross-sectional view taken along the line B-B in FIG. 3;

FIG. 7 is a front view schematically illustrating the rear wheel of FIG. 3 in an angle-adjusted state;

FIG. 8 is a schematic view of the longitudinal cross-sectional structure of FIG. 7;

FIG. 9 is a schematic front view showing the structure of embodiment 3;

FIG. 10 is a schematic longitudinal cross-sectional view of the structure of FIG. 9;

fig. 11 is a front view schematically showing the angle-adjusted state of the back frame in fig. 10;

fig. 12 is a block diagram of a control system of embodiment 3.

In the figure: 1. the multifunctional solar chair comprises a chair seat frame, 2 parts of a pedal, 3 parts of a backrest frame, 4 parts of a handle, 5 parts of a chair seat, 6 parts of a driving chamber, 7 parts of a solar photovoltaic cell panel, 8 parts of a connecting shaft, 9 parts of a wheel frame, 10 parts of a main tire, 11 parts of an L-shaped metal wheel keel, 12 parts of a rear wheel, 13 parts of a rear supporting frame, 14 parts of a pin shaft, 15 parts of a first screw hole, 16 parts of a locking bolt, 17 parts of an arc-shaped sliding groove, 18 parts of a pulley, 19 parts of a connecting rod, 20 parts of a first electric telescopic rod, 21 parts of a control button, 22 parts of a control box, 23 parts of.

Detailed Description

First, it should be noted that the specific structures, features, advantages, etc. of the present invention will be specifically described below by way of example, but all the descriptions are for illustrative purposes only and should not be construed as limiting the present invention in any way. Furthermore, any single feature described or implicit in any embodiment or any single feature shown or implicit in any drawing may still be combined or subtracted between any of the features (or equivalents thereof) to obtain still further embodiments of the invention that may not be directly mentioned herein. In addition, for the sake of simplicity, the same or similar features may be indicated in only one place in the same drawing.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "disposed," "connected," "secured," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations. The present invention will be described in detail with reference to fig. 1 to 12.

The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and examples.