CN211633973U - an intelligent wheelchair - Google Patents

Abstract

The utility model discloses an intelligent wheelchair, which comprises a backrest and a seat cushion. Both sides of the seat cushion are provided with protective plates, the bottom end of the seat cushion is connected with a support frame, a drive box is arranged inside the support frame, and the support frame is close to the bottom of one side of the backrest. A driving wheel is arranged at the end, a direction wheel is arranged at the bottom end of the side of the support frame away from the backrest, one side of the support frame is connected with an L-shaped foot frame, a leg pad is laterally connected between the foot frames, and a foot pedal is arranged at the end of the foot frame , an auxiliary wheel is installed at the bottom end of the pedal. The utility model increases the contact area between the wheelchair and the ground through the auxiliary wheel, so that the wheelchair can move forward more smoothly, preventing the wheelchair from directly falling to the ground, and the information of the user on the wheelchair and the information of the external environment can be detected through the sensing module, and further It is convenient for the wheelchair to judge the forward route by itself, to prevent collisions, and it is beneficial for patients to relax or do rehabilitation exercises, so as to achieve the combination of medical care and health care.

Description

an intelligent wheelchair

technical field

The utility model relates to the field of medical machinery, in particular to an intelligent wheelchair based on intelligent perception and medical care services.

Background technique

At present, the world's aging population is increasing, the number of empty nesters is increasing, and the number of disabled people caused by various factors is increasing year by year. The physical therapy and rehabilitation of such a large number of disabled and elderly people has become a major hot spot in the society. With the development of technology, these disadvantaged groups are eager to get out of their homes and reintegrate into society. The emergence of intelligent wheelchairs has improved their freedom of movement and provided them with good travel. When the current smart wheelchair is running on an inclined ground, it is prone to roll over when the ground inclination is greater than 10°, causing the elderly or patient in the wheelchair to overturn to the ground, causing harm to the human body.

Utility model content

The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an intelligent wheelchair, which can prevent the wheelchair from rolling over due to the inclination of the ground during the use of the wheelchair.

In order to solve the above-mentioned technical problems, the utility model provides the following technical solutions:

The utility model relates to an intelligent wheelchair, comprising a backrest and a seat cushion. Handles are fixedly installed on both edges of the back of the backrest, armrests are installed on both sides of the top of the seat cushion, and one side of the bottom end of the backrest is connected to the side of the seat cushion. A rotating shaft is connected to one side, a controller is connected to a top end of one of the armrests, protective plates are provided on both sides of the seat cushion, a support frame is connected to the bottom end of the seat cushion, and a support frame is arranged inside the support frame. Drive box, the bottom end of the side of the support frame close to the backrest is provided with a driving wheel, the bottom end of the side of the support frame away from the backrest is provided with a direction wheel, one side of the support frame is connected to the L-shaped foot frame, the Legging pads are laterally connected between the tripods, a foot pedal is arranged at the end of the tripod, and an auxiliary wheel is installed at the bottom end of the foot pedal.

As a preferred technical solution of the present invention, both sides of the support frame are provided with sliding grooves, a sliding block is sleeved inside the sliding groove, and a support rod is connected to the bottom end of one side of the sliding block. A support plate is installed on the bottom surface of the support rod, a spring buckle is arranged on the top of the chute, a support plate is clamped inside the spring buckle, and the top end of the support plate is inserted into the support seat through the support shaft. Internally, the inner surface of the support seat is provided with a spring.

As a preferred technical solution of the present invention, the drive box is electrically connected to the controller, the drive box is connected to a steering wheel through a universal shaft, and the steering wheel is electrically connected to the controller.

As a preferred technical solution of the present invention, the outer surface of the rotating shaft is provided with a turning handle that can adjust the inclination of the backrest.

As a preferred technical solution of the present invention, the side of the backrest facing the seat cushion is provided with a safety belt.

As a preferred technical solution of the present invention, the elastic direction of the spring is on both sides of the support frame, so as to exert a thrust on the support plate, and the maximum opening angle of the support plate is 90°.

As a preferred technical solution of the present invention, the horizontal and vertical distance between the support plate and the driving wheel is greater than 5 cm and less than 12 cm.

As a preferred technical solution of the present invention, the controller is connected to a computer processing unit, and the computer processing unit includes a sensor module, a driving module and a human-computer interaction module, and the sensor module includes an internal state sensing module and an external Environment state perception module, the internal state perception module determines the posture information of the wheelchair user through the attitude sensor, and the external environment state perception module obtains self-positioning information through the displacement speed and distance of the encoder respectively; through the CCD camera, ultrasonic sensor and The proximity switch continuously obtains distance information of the surrounding environment and obstacles.

Compared with the prior art, the beneficial effects of the present utility model are as follows:

The utility model increases the contact area between the wheelchair and the ground through the auxiliary wheel, so that the wheelchair can move forward more stably, and at the same time, the wheelchair can be supported sideways when the wheelchair is tilted and overturned, so as to prevent the wheelchair from directly overturning on the ground and causing injury to the elderly or the patient. , reduce the possibility of injury, and the information of the user on the wheelchair and the information of the external environment can be detected through the perception module, so as to facilitate the wheelchair to judge the forward route by itself, prevent collision, and help the patient to relax more or do rehabilitation exercises. to the combination of medical care.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and are used to explain the present invention together with the embodiments of the present invention, and do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is the overall structure schematic diagram of the present utility model;

Fig. 2 is the structural schematic diagram of the utility model after removing the support plate and the spring buckle;

3 is a side view of a partial structure of the present utility model;

Fig. 4 is the intelligent module connection schematic diagram of the present invention;

In the picture: 1. Backrest; 2. Seat cushion; 3. Handle; 4. Armrest; 5. Controller; 6. Protective plate; 7. Support frame; 8. Drive box; 9. Drive wheel; 10, Steering wheel; 11 , tripod; 12, leg pad; 13, foot pedal; 14, auxiliary wheel; 15, chute; 16, sliding block; 17, support rod; 18, support plate; 19, spring buckle; 20, support plate; 21, support seat; 22, spring; 23, shaft; 24, computer processing unit; 25, wheelchair body; 26, sensor module; 27, drive module; 28, human-computer interaction module; 29, internal state perception module; 30, External environment state perception module; 31, attitude sensor; 32, encoder; 33, CCD camera; 34, ultrasonic sensor; 35, proximity switch.

Detailed ways

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present utility model, but not to limit the present utility model.

Wherein the same reference numbers in the drawings refer to the same parts throughout.

Example 1

As shown in Figures 1-4, the present invention provides an intelligent wheelchair based on intelligent perception and medical care services, including a backrest 1 and a seat cushion 2, handles 3 are fixedly installed on both sides of the back of the backrest 1, and the top of the seat cushion 2 is fixedly installed. Armrests 4 are installed on both sides, the bottom end side of the backrest 1 is connected with a side of the seat cushion 2 with a rotating shaft 23, one side of the armrest 4 is connected with a controller 5 at the top, and both sides of the seat cushion 2 are provided with protective plates. 6. The bottom end of the seat cushion 2 is connected with a support frame 7, a drive box 8 is set up inside the support frame 7, a drive wheel 9 is provided at the bottom end of the side of the support frame 7 close to the backrest 1, and the bottom of the side of the support frame 7 away from the backrest 1 is provided. A direction wheel 10 is provided at the end, one side of the support frame 7 is connected with an L-shaped foot frame 11, a leg pad 12 is laterally connected between the foot frames 11, the end of the foot frame 11 is provided with a foot pedal 13, An auxiliary wheel 14 is installed at the end.

Further, the two sides of the support frame 7 are provided with sliding grooves 15, the sliding block 16 is sleeved inside the sliding groove 15, the bottom end of one side of the sliding block 16 is connected with a support rod 17, and the bottom end of the support rod 17 is mounted on the surface. There is a support plate 18, a spring buckle 19 is arranged on the top of the chute 15, and a support plate 20 is clamped inside the spring buckle 19. A spring 22 is provided.

The drive box 8 is electrically connected to the controller 5 , the drive box 8 is connected to the steering wheel 10 through a universal shaft, and the steering wheel 10 is electrically connected to the controller 5 , through which the wheelchair can be controlled to walk.

The outer surface of the rotating shaft 23 is provided with a turning handle that can adjust the inclination of the backrest 1 , and the user can adjust the wheelchair backrest 1 according to their own preferences to achieve the most comfortable sitting posture.

The side of the backrest 1 facing the seat cushion 2 is provided with a safety tether, and for a patient who is unstable in sitting and standing, the patient is fixed by the safety tether to prevent the patient from sliding to the outside.

The direction of the spring 22 is on both sides of the support frame 7, so as to exert a thrust on the support plate 20. The maximum angle of the support plate 20 is 90°. When the spring buckle 19 is released from the end of the support plate 20, the spring 22 will The support plate 20 is pushed out, so that the support plate 20 rotates outward with the support base 21 as a fulcrum.

The horizontal and vertical distance between the support plate 18 and the driving wheel 9 is greater than 5cm and less than 12cm. When the wheelchair tilts and falls over, the support plate 18 touches the ground first, so that the sliding block 16 slides upwards in the chute 15 to push the spring buckle 19 open, thereby supporting. The plate 20 is opened to the outside, and can be supported by the support plate 20 when the wheelchair rolls over.

The controller 5 is connected with the computer processing unit 24, the computer processing unit 24 includes a sensor module 26, a driving module 27 and a human-computer interaction module 28, the sensor module 26 includes an internal state sensing module 29 and an external environment state sensing module 30 , the internal state perception module 29 determines the attitude information of the wheelchair user through the attitude sensor 31, the external environment state perception module 30 obtains self-positioning information through the displacement speed and distance of the encoder 32 respectively; through the CCD camera 33, the ultrasonic sensor 34 and the proximity switch 35 continuously obtain the distance information of the surrounding environment and obstacles.

Specifically, the patient or the elderly can first adjust the inclination of the wheelchair back 1 according to their own preferences during use, and can also fasten the safety belt to prevent the wheelchair from suddenly braking and slipping during the forward process. Manual control or computer self-control is selected by the controller 5 to realize the basic human-computer interaction function. During the forward process, if force is suddenly applied to the foot pedal 13, the bottom end of the foot pedal 13 is provided with an auxiliary wheel. 14. It can prevent the wheelchair from falling forward due to the force stepping on the air, and at the same time, the contact area between the wheelchair and the ground is increased, so that the forward movement is more stable. In contact, the sliding block 16 slides up inside the chute 15 to push the spring buckle 19 open, so that the support plate 20 opens to the outside, and can be supported by the support plate 20 before the wheelchair falls over, so as to prevent the wheelchair from directly overturning. It will cause great harm to the human body, and at the same time, the CCD camera 33, the ultrasonic sensor 34 and the proximity switch 35 can be used to detect and judge the external environment when the wheelchair moves forward, which can ensure that the wheelchair will not collide when the wheelchair moves forward automatically. , thereby improving the safety performance, and can also relax or perform rehabilitation training during the period of inconvenience, thereby promoting the physical recovery of the elderly or patients.

To sum up, the utility model increases the contact area between the wheelchair and the ground through the auxiliary wheel, so that the wheelchair can move forward more stably. The elderly or patients cause injury, reduce the possibility of injury, and the perception module can detect the information of the user on the wheelchair and the information of the external environment, so as to facilitate the wheelchair to judge the forward route by itself, prevent collision, and help the patient to relax more or Do rehabilitation exercises and combine medical care with care.

Finally, it should be noted that the above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. , it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (8)

1. An intelligent wheelchair based on intelligent perception and medical care services, comprising a wheelchair body (25), the wheelchair body (25) comprising a backrest (1), a seat cushion (2) and a computer processing unit (24), the backrest (1) Handles (3) are fixedly installed on both edges of the back of the seat cushion (2), and armrests (4) are installed on both sides of the top of the seat cushion (2). A rotating shaft (23) is connected to one side of the seat cushion (2), a controller (5) is connected to the top of one side of one of the armrests (4), and both sides of the seat cushion (2) are provided with protective plates ( 6), the bottom end of the seat cushion (2) is connected with a support frame (7), a drive box (8) is set up inside the support frame (7), and the support frame (7) is close to one side of the backrest (1). A drive wheel (9) is arranged at the bottom end of the side, a direction wheel (10) is arranged at the bottom end of the side of the support frame (7) away from the backrest (1), and one side of the support frame (7) is connected with the L-shaped feet A frame (11), a shin pad (12) is laterally connected between the foot frames (11), a footrest (13) is provided at the end of the foot frame (11), and the footrest (13) is An auxiliary wheel (14) is installed at the bottom end. 2. An intelligent wheelchair based on intelligent perception and medical care services according to claim 1, characterized in that, both sides of the support frame (7) are provided with chute (15), and the chute ( A sliding block (16) is sleeved inside the sliding block (16), a support rod (17) is connected to the bottom end of one side of the sliding block (16), and a support plate (18) is installed on the bottom end surface of the support rod (17). ), the top of the chute (15) is provided with a spring buckle (19), the inside of the spring buckle (19) is clamped with a support plate (20), and the top of the support plate (20) is clamped by a support shaft It is embedded in the support seat (21), and the inner surface of the support seat (21) is provided with a spring (22). 3. An intelligent wheelchair based on intelligent perception and medical care services according to claim 1, characterized in that the drive box (8) is electrically connected to the controller (5), and the drive box (8) The universal shaft is connected with the steering wheel (10), and the steering wheel (10) is electrically connected with the manipulator (5). 4 . The intelligent wheelchair based on intelligent perception and medical care services according to claim 1 , characterized in that, a turning handle capable of adjusting the inclination of the backrest ( 1 ) is provided on the outer surface of the rotating shaft ( 23 ). 5 . 5 . The intelligent wheelchair based on intelligent perception and medical care services according to claim 1 , wherein a safety belt is provided on the side of the backrest ( 1 ) facing the seat cushion ( 2 ). 6 . 6. An intelligent wheelchair based on intelligent perception and medical care services according to claim 2, characterized in that the spring (22) is stretched toward both sides of the support frame (7), so that the support plate ( 20) Apply thrust, the maximum angle of the support plate (20) is 90°. 7 . The intelligent wheelchair based on intelligent perception and medical care services according to claim 2 , wherein the horizontal and vertical distance between the support plate ( 18 ) and the driving wheel ( 9 ) is greater than 5 cm and less than 12 cm. 8 . 8. An intelligent wheelchair based on intelligent perception and medical care services according to claim 1, wherein the controller (5) is connected to a computer processing unit (24), and the computer processing unit (24) ) includes a sensor module (26), a driving module (27) and a human-computer interaction module (28), the sensor module (26) includes an internal state sensing module (29) and an external environment state sensing module (30), the internal state sensing module (29) The state perception module (29) determines the attitude information of the wheelchair user through the attitude sensor (31), and the external environment state perception module (30) obtains self-positioning information through the displacement speed and distance of the encoder (32) respectively; through the CCD camera (33), the ultrasonic sensor (34) and the proximity switch (35) continuously obtain the distance information of the surrounding environment and obstacles.

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