An electric wheelchair

Abstract

The present invention discloses an electric wheelchair, including a tablet computer, a display screen and a safety auxiliary mechanism. The tablet computer is installed in front of the seat; two sets of display screens are installed on the armrests of the seat respectively; a camera b facing the front is installed on the back of the tablet computer, and a camera a facing the rear side is installed on the back of the display screen; an infrared receiver and an infrared transmitter are also installed on the back of the tablet computer; the tablet computer is connected to the wheelchair controller signal via Bluetooth. The present invention can collect and enlarge images far ahead to the user, making it easy to observe beautiful scenery or detect danger, improving safety and experience; it can detect vehicles coming from behind in time, making it easy for users to safely operate the electric wheelchair, improving safety performance; it can provide navigation functions, making it easy for automatic driving; it can also be remotely connected to the Internet, making it easy for family members to remotely operate and drive; at the same time, the safety auxiliary mechanism can also assist the electric wheelchair to get on and off the curb, making it easy to travel.

Description

Technical Field

[0001] The present invention relates to the technical field of wheelchairs, in particular to an electric wheelchair. Background Art

[0002] Electric wheelchairs are upgraded from traditional manual wheelchairs by adding high-performance power drive devices, intelligent control devices, batteries and other components. With a manually operated intelligent controller, the new generation of intelligent wheelchairs can drive the wheelchair to complete multiple functions such as forward, backward, turning, standing, lying, etc. Electric wheelchairs are no longer a means of transportation exclusively for elderly people with mobility problems. Young people have also fallen in love with this "travel artifact". In the eyes of many businesses, some young customers are becoming potential buyers of electric wheelchairs.

[0003] The user group of electric wheelchairs is expanding. Patients with mobility impairments, the elderly, even middle-aged people, young people, teenagers with leg diseases, and children are all users of electric wheelchairs.

[0004] Among the existing electric wheelchair users, many elderly people generally have geriatric diseases, such as decreased hearing, vision, and reaction ability; the experience of operating an electric wheelchair is poor, which is very inconvenient when going out, and there may even be risks if the electric wheelchair is not operated properly. Some young people or children with leg diseases think that electric wheelchairs are too monotonous and lack entertainment experience, which cannot meet their needs.

[0005] For example, the publication number CN104825285B discloses a high-strength and lightweight electric wheelchair; the publication number CN105030441B discloses an electric wheelchair with a large load capacity, good stability, and not easy to shake and tilt; the publication number CN102755230B discloses an electric wheelchair with convenient turning. These wheelchairs all have the following problems: for elderly users with poor vision and hearing, the experience is poor; at the same time, for young people or children, they are too monotonous and cannot meet the entertainment needs. Summary of the invention

[0006] The object of the present invention is to provide an electric wheelchair to solve the problem that the existing electric wheelchairs in the above-mentioned background technology are inconvenient for the elderly to operate and are less entertaining than young users.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An electric wheelchair, comprising a tablet computer, a display screen and a safety auxiliary mechanism, wherein the tablet computer is mounted in front of a seat; the display screen is provided in two groups, and the two groups of display screens are respectively mounted on the armrests of the seat; a camera b facing the front is mounted on the back of the tablet computer, and a camera a facing the rear side is mounted on the back of the display screen; an infrared receiver and an infrared transmitter are also mounted on the back of the tablet computer; the tablet computer can realize information exchange and transmission with other external devices through infrared rays; wherein the tablet computer is connected to a microprocessor signal in a wheelchair controller through Bluetooth;

[0009] The safety auxiliary mechanism comprises a V-shaped frame rotatably mounted at the bottom of the seat and a first electric push rod hingedly mounted at the bottom of the seat, one end of the first electric push rod is hingedly connected to one side of the V-shaped frame; support rollers are rotatably mounted at both ends of the V-shaped frame, and a second motor for driving the support rollers to rotate is mounted on one side of the V-shaped frame;

[0010] The safety auxiliary mechanism also includes a second electric push rod, one end of which is fixedly connected to a strip plate, and a plurality of ultrasonic ranging sensors are evenly installed on the strip plate. The first electric push rod, the second motor and the second electric push rod are all controlled by a wheelchair controller, and the signal output end of the ultrasonic ranging sensor is connected to the signal input end of the wheelchair controller. The safety auxiliary mechanism can support the support roller on the ground on a bumpy road surface, increase friction and promote speed reduction and buffering and shock absorption, thereby improving safety. At the same time, the safety auxiliary mechanism can also assist the electric wheelchair to go up and down the curb.

[0011] Preferably, the tablet computer can be stored on one side of the seat, and the display screen can be stored on one side of the armrest.

[0012] Preferably, the above-mentioned tablet computer is stored on one side of the seat through a storage structure, and the storage structure includes an inner rod, a sleeve, a slide rail and a slider; the tablet computer is rotatably mounted on the upper end of the inner rod through a damping shaft; the lower end of the inner rod is slidably inserted in the sleeve, and the lower end of the inner rod can be threadedly connected to the upper end of the sleeve; the lower end of the sleeve is rotatably connected to one side of the slider through a damping shaft, and the slider is slidably mounted on the slide rail, and the slide rail is fixedly mounted on the bottom surface of the seat; a plastic clip for clamping the tablet computer is fixedly connected to one side of the seat.

[0013] Preferably, the above-mentioned display screen is fixedly connected to the rotating shaft of the first motor through an arc frame, and the first motor is fixedly installed on the lower side of the armrest; a downwardly recessed button is installed on the armrest, and the first motor is controlled by the button.

[0014] Preferably, the display screen is connected to the tablet computer via Bluetooth, a warning light is installed on the top of the display screen, and the warning light is controlled by the tablet computer.

[0015] Preferably, a turn signal is installed on the back of the seat back, and the turn signal is controlled by a wheelchair controller.

[0016] Preferably, a speaker is installed on the upper part of the chair back, and the speaker is connected to the tablet computer via Bluetooth.

[0017] Preferably, an operating area is provided on one of the armrests.

[0018] The present invention also provides a method for using an electric wheelchair, comprising:

[0019] S1. Install navigation software in the tablet computer, add a wheelchair driving tool module to the navigation software, so as to match the appropriate road section, enable navigation for the user through the tablet computer, and set a navigation destination switching button on the operation area to enable quick switching;

[0020] S2. During driving, the camera b collects the image in front and transmits it to the tablet computer, which can process and magnify it in real time for the user to observe; the navigation interface and the image are displayed in split screen or alternately; when encountering a traffic light, the user can be notified of the traffic light situation through the speaker in time, and the vehicle will automatically brake and stop when the light turns red;

[0021] At the same time, an infrared transmitting module is added to each traffic light to transmit traffic light signals; the infrared receiver on the back of the tablet computer can also receive the traffic light signals, thereby notifying the user, doubly confirming the traffic light signals to ensure safety;

[0022] S3. During driving, the turn signal can be automatically turned on before entering the navigation turn to alert the vehicles or people driving behind;

[0023] S4. During driving, the tablet computer processes the images taken by camera a in real time, detects the vehicle behind it in time, and warns the user by turning on the warning light;

[0024] S5. When driving, the car can be driven intelligently and automatically according to the navigation interface. When encountering special situations, the user can intervene manually.

[0025] S6. While driving, the tablet is connected to the Internet via a 4G module and can remotely drive the wheelchair.

[0026] The present invention also provides a second method for using an electric wheelchair, wherein the electric wheelchair is used for playing games, and specifically comprises the following steps:

[0027] S1. A functional area is provided on the chair back, and the functional area at least includes an infrared receiving function and a distance measuring function;

[0028] S2, loading the game in the tablet computer, collecting the driving data of the electric wheelchair through the tablet computer and the wheelchair controller, thereby realizing the movement operation in the game;

[0029] S3, by setting a button for operating the infrared transmitter to start on the operation area;

[0030] S4. Multiple people can transmit game data to each other through infrared transmitters and infrared receivers, and can play games in a wide square.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1. The present invention, through the design of the tablet computer and the camera b, can collect and magnify the image far ahead in front of the user, so that users with poor eyesight can better observe the front, observe the beautiful scenery or perceive the danger, and improve safety and experience;

[0033] 2. Through the tablet computer, display screen and camera a, the user can find the vehicle coming from behind in time without looking back, which is convenient for the user to operate the electric wheelchair safely and improves the safety performance;

[0034] 3. Through the infrared transmitter and infrared receiver, infrared devices such as infrared-controlled gates and electric doors can be controlled on the wheelchair, and the infrared receiver can receive infrared signals such as traffic light signals, etc., to improve safety and practicality;

[0035] 4. The tablet computer can provide navigation function, which is convenient for travel, and can collect driving data of the electric wheelchair for automatic driving; it can also be remotely connected to the Internet, which is convenient for family members to remotely operate the driving;

[0036] 5. The safety auxiliary mechanism can support the support roller on the ground on bumpy roads, increase friction and reduce speed and buffer shock, thereby improving safety; at the same time, the safety auxiliary mechanism can also assist the electric wheelchair to get on and off the curb; it can also travel unimpeded on urban roads with many curbs, making travel convenient;

[0037] 6. Use a tablet computer to collect the driving data of the electric wheelchair, and load game data into the tablet computer to play games, improve entertainment, and meet the needs of young users. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a schematic diagram of the structure of the electric wheelchair after the tablet computer is stored in an embodiment of the present invention;

[0039] Figure 2This is a schematic diagram of the structure of the tablet computer of the electric wheelchair after it is unfolded according to an embodiment of the present invention;

[0040] Figure 3 This is a schematic diagram of the structure of one of the handrails in an embodiment of the present invention;

[0041] Figure 4 It is a schematic diagram of the side view structure of the tablet computer when it is supported according to an embodiment of the present invention;

[0042] Figure 5 It is a schematic diagram of the side structure of the tablet computer when it is stored in an embodiment of the present invention;

[0043] Figure 6 This is a schematic diagram of the structure of a plastic clip according to an embodiment of the present invention;

[0044] Figure 7 It is a structural schematic diagram of a safety auxiliary mechanism according to an embodiment of the present invention;

[0045] Figure 8 Schematic diagram of the structure of a V-shaped frame according to an embodiment of the present invention.

[0046] In the figure: 100, seat; 200, armrest; 201, button; 202, operation area; 203, display screen; 204, warning light; 205, camera a; 206, arc frame; 207, first motor;

[0047] 300, seat back; 301, audio; 302, turn signal; 303, functional area;

[0048] 400, tablet computer; 401, camera b; 402, infrared receiver; 403, infrared transmitter; 404, damping shaft; 405, inner rod; 406, sleeve; 407, slide rail; 408, slider; 409, plastic clip;

[0049] 500, V-shaped frame; 501, support roller; 502, second motor; 503, first electric push rod;

[0050] 600, second electric push rod; 601, strip plate; 602, ultrasonic distance sensor. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] Example 1

[0053] See also Figure 1-8 , the present invention provides a technical solution:

[0054] like Figure 2 As shown in, an electric wheelchair includes a tablet computer 400, a display screen 203 and a safety auxiliary mechanism, wherein the tablet computer 400 is installed in front of the seat 100; the display screen 203 is provided with two groups, and the two groups of display screens 203 are respectively installed on the armrests 200 of the seat 100; during implementation, an operation area 202 is also provided on one of the armrests 200. A camera b401 facing the front is installed on the back of the tablet computer 400, and a camera a205 facing the rear side is installed on the back of the display screen 203; an infrared receiver 402 and an infrared transmitter 403 are also installed on the back of the tablet computer 400; infrared rays can realize the interactive transmission of information between the tablet computer 400 and other external devices; wherein the tablet computer 400 is connected to the microprocessor signal in the wheelchair controller via Bluetooth.

[0055] like Figure 7 and Figure 8 As shown in the figure, the safety auxiliary mechanism includes a V-shaped frame 500 rotatably installed at the bottom of the seat 100 and a first electric push rod 503 hingedly installed at the bottom of the seat 100, one end of the first electric push rod 503 is hinged to one side of the V-shaped frame 500; support rollers 501 are rotatably installed at both ends of the V-shaped frame 500, and a second motor 502 for driving the support roller 501 to rotate is installed on one side of the V-shaped frame 500.

[0056] like Figure 7 and Figure 8 As shown in , the safety auxiliary mechanism also includes a second electric push rod 600, one end of which is fixedly connected to a strip plate 601, and multiple ultrasonic distance sensors 602 are evenly installed on the strip plate 601. The first electric push rod 503, the second motor 502 and the second electric push rod 600 are all controlled by the wheelchair controller, and the signal output end of the ultrasonic distance sensor 602 is connected to the signal input end of the wheelchair controller; the safety auxiliary mechanism can support the support roller 501 on the ground on a bumpy road, increase friction and promote speed reduction and buffering and shock absorption, and improve safety; at the same time, the safety auxiliary mechanism can also assist the electric wheelchair to go up and down the curb. There are many curbs in the city, and there are curbs in many places, which makes it inconvenient for wheelchairs to walk or requires detours.

[0057] The specific method of getting on and off the curb of the electric wheelchair in this embodiment is as follows:

[0058] (1) First, the camera b401 is used to collect an image of the curb, and the tablet computer 400 analyzes the image in real time to automatically correct the position of the electric wheelchair so that the electric wheelchair and the front wheels of the electric wheelchair are perpendicular to the curb;

[0059] (2) The second electric push rod 600 is extended so that the strip plate 601 extends beyond the position of the front wheel, driving the rear wheel to move straight forward, and then the ultrasonic ranging sensor 602 detects the position and height of the curb;

[0060] (3) The first electric push rod 503 is then retracted so that the front part of the V-shaped frame 500 is supported on the ground and the front wheel of the electric wheelchair is lifted (or only supported to reduce the weight on the front wheel), and then the rear wheel of the electric wheelchair is driven to move a little so that the front wheel falls on the curb; then the first electric push rod 503 is retracted to its original position;

[0061] (4) The electric wheelchair is then driven forward so that the rear wheels are close to the curb, and then the first electric push rod 503 is extended, so that the rear part of the V-shaped frame 500 is supported on the ground and the rear wheels are lifted (or only supported to reduce the weight on the rear wheels), and the rear wheel drive and the second motor 502 are started to drive the support roller 501 to move forward at the same time, completing the curb operation; the above process is automatically completed by the intelligent program.

[0062] Similarly, when going down the curb, it can also be done automatically through the intelligent program; or the electric wheelchair can be driven directly down. Going down the curb is relatively simple and can be done directly.

[0063] During implementation, the tablet computer 400 can be stored at one side of the seat 100 , and the display screen 203 can be stored at one side of the armrest 200 .

[0064] The following is one of the storage implementations of the tablet computer 400 and the display screen 203:

[0065] like Figure 4 , Figure 5 and Figure 6 As shown, the tablet computer 400 is stored on one side of the seat 100 through a storage structure, and the storage structure includes an inner rod 405, a sleeve 406, a slide rail 407 and a slider 408; the tablet computer 400 is rotatably mounted on the upper end of the inner rod 405 through a damping shaft 404; the lower end of the inner rod 405 is slidably inserted into the sleeve 406, and the lower end of the inner rod 405 can be threadedly connected to the upper end of the sleeve 406; the lower end of the sleeve 406 is rotatably connected to one side of the slider 408 through the damping shaft 404, and the slider 408 is slidably mounted on the slide rail 407, and the slide rail 407 is fixedly mounted on the bottom surface of the seat 100; a plastic clip 409 for clamping the tablet computer 400 is fixedly connected to one side of the seat 100.

[0066] like Figure 2As shown in , the display screen 203 is fixedly connected to the rotating shaft of the first motor 207 through the arc frame 206, and the first motor 207 is fixedly installed on the lower side of the armrest 200; a downwardly recessed button 201 is installed on the armrest 200, and the first motor 207 is controlled by the button 201.

[0067] During implementation, the display screen 203 is connected to the tablet computer 400 via Bluetooth, and a warning light 204 is installed on the top of the display screen 203, and the warning light 204 is controlled by the tablet computer 400. The warning light 204 can warn the user that a vehicle is approaching from behind, so that the user can pay attention.

[0068] During implementation, a turn signal 302 is installed on the back of the backrest 300 of the seat 100, and the turn signal 302 is controlled by the wheelchair controller. When driving based on the navigation route, the turn signal 302 is turned on before approaching the bend specified by the navigation, generally about 8-10 meters, to warn the rear.

[0069] In addition, for some users with poor hearing or users who are disturbed by loud noises outdoors, a speaker 301 is installed on the upper part of the chair back 300, and the speaker 301 is connected to the tablet computer 400 via Bluetooth. The speaker 301 is convenient for enhancing the user's experience.

[0070] Example 2

[0071] Different from the first embodiment, this embodiment provides a method for using an electric wheelchair, which specifically includes the following steps:

[0072] S1. Install navigation software in the tablet computer 400, add a wheelchair travel tool module to the navigation software, so as to match the appropriate road section, and enable navigation for the user through the tablet computer 400, and set a navigation destination switching button on the operation area 202 to enable quick switching;

[0073] S2. During driving, the camera b401 collects the image in front and transmits it to the tablet computer 400, which can process and enlarge it in real time for the user to observe; the navigation interface and the image are displayed in split screen or alternately; when encountering a traffic light, the user can be notified of the traffic light situation in time through the speaker 301, and the vehicle will automatically brake and stop when the light turns red;

[0074] At the same time, an infrared transmitting module is added to each traffic light to transmit the traffic light signal; the infrared receiver 402 on the back of the tablet computer 400 can also receive the traffic light signal, thereby notifying the user, doubly confirming the traffic light signal, and ensuring safety;

[0075] S3. During driving, the turn signal 302 can be automatically turned on before entering the navigation turn to prompt the vehicle or personnel driving behind;

[0076] S4. During driving, the image captured by the camera a205 is processed in real time by the tablet computer 400, and the vehicle behind the side is discovered in time, and the user is warned by turning on the warning light 204;

[0077] S5. When driving, the car can be driven intelligently and automatically according to the navigation interface. When encountering special situations, the user can intervene manually.

[0078] S6. While driving, the tablet computer 400 is connected to the Internet via the 4G module and can remotely drive the wheelchair.

[0079] Example 3

[0080] Different from the first embodiment, this embodiment provides a method for using an electric wheelchair, which is used for games and specifically includes the following steps:

[0081] S1. A functional area 303 is provided on the chair back 300, and the functional area 303 at least includes an infrared receiving function and a distance measuring function;

[0082] S2, loading the game in the tablet computer 400, collecting the driving data of the electric wheelchair through the tablet computer 400 and the wheelchair controller, thereby realizing the movement operation in the game;

[0083] S3, by setting a button on the operation area 202 for operating the infrared transmitter 403 to start;

[0084] S4. Multiple people can transmit game data to each other through the infrared transmitter 403 and the infrared receiver 402, and can play games in a wide square.

[0085] Common game types include maze, hide-and-seek, and shooting games. By collecting the movement data of the electric wheelchair, corresponding data is generated in the game, thus realizing the entertainment of wheelchair games.

[0086] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An electric wheelchair, characterized in that: include: A tablet computer, which is installed just in front of the seat; The display screen is provided with two groups, and the two groups of display screens are respectively installed on the armrests of the seat; a camera b facing the front is installed on the back of the tablet computer, and a camera a facing the rear side is installed on the back of the display screen; an infrared receiver and an infrared transmitter are also installed on the back of the tablet computer; the tablet computer can realize the interactive transmission of information with other external devices through infrared rays; wherein the tablet computer is connected to the microprocessor signal in the wheelchair controller through Bluetooth; It also includes a safety auxiliary mechanism, which includes a V-shaped frame rotatably mounted at the bottom of the seat and a first electric push rod hingedly mounted at the bottom of the seat, one end of the first electric push rod is hingedly connected to one side of the V-shaped frame; both ends of the V-shaped frame are rotatably mounted with support rollers, and one side of the V-shaped frame is mounted with a second motor for driving the support roller to rotate; The safety auxiliary mechanism also includes a second electric push rod, one end of which is fixedly connected to a strip plate, and a plurality of ultrasonic distance measuring sensors are evenly installed on the strip plate. The first electric push rod, the second motor and the second electric push rod are all controlled by a wheelchair controller, and the signal output end of the ultrasonic distance measuring sensor is connected to the signal input end of the wheelchair controller. The safety auxiliary mechanism can support the support roller on the ground on a bumpy road surface, increase friction and promote speed reduction and buffering and shock absorption, thereby improving safety. At the same time, the safety auxiliary mechanism can also assist the electric wheelchair to go up and down the curb; The tablet computer is stored on one side of the seat through a storage structure, and the storage structure includes an inner rod, a sleeve, a slide rail and a slider; the tablet computer is rotatably mounted on the upper end of the inner rod through a damping shaft; the lower end of the inner rod is slidably inserted in the sleeve, and the lower end of the inner rod can be threadedly connected to the upper end of the sleeve; the lower end of the sleeve is rotatably connected to one side of the slider through a damping shaft, and the slider is slidably mounted on the slide rail, and the slide rail is fixedly mounted on the bottom surface of the seat; a plastic clip for clamping the tablet computer is fixedly connected to one side of the seat; The display screen is fixedly connected to the rotating shaft of the first motor through an arc frame, and the first motor is fixedly installed on the lower side of the armrest; a button recessed downward is installed on the armrest, and the first motor is controlled by the button.

2. An electric wheelchair according to claim 1, characterized in that: The display screen is connected to the tablet computer via Bluetooth. A warning light is installed on the top of the display screen, and the warning light is controlled by the tablet computer.

3. An electric wheelchair according to claim 2, characterized in that: A turn signal light is installed on the back of the seat back, and the turn signal light is controlled by a wheelchair controller.

4. An electric wheelchair according to claim 3, characterized in that: A speaker is installed on the upper part of the chair back and is connected to the tablet computer via Bluetooth.

5. An electric wheelchair according to claim 4, characterized in that: An operating area is provided on one of the armrests.

6. A method for using the electric wheelchair as claimed in claim 5, characterized in that: include: S1. Install navigation software in the tablet computer, add a wheelchair driving tool module to the navigation software, so as to match the appropriate road section, enable navigation for the user through the tablet computer, and set a navigation destination switching button on the operation area to enable quick switching; S2. During driving, the camera b collects the image in front and transmits it to the tablet computer, which can process and magnify it in real time for the user to observe; the navigation interface and the image are displayed in split screen or alternately; when encountering a traffic light, the user can be notified of the traffic light situation through the speaker in time, and the vehicle will automatically brake and stop when the light turns red; At the same time, an infrared transmitting module is added to each traffic light to transmit traffic light signals; the infrared receiver on the back of the tablet computer can also receive the traffic light signals, thereby notifying the user, doubly confirming the traffic light signals to ensure safety; S3. During driving, the turn signal can be automatically turned on before entering the navigation turn to alert the vehicles or people driving behind; S4. During driving, the tablet computer processes the images taken by camera a in real time, detects the vehicle behind it in time, and warns the user by turning on the warning light; S5. When driving, the car can be driven intelligently and automatically according to the navigation interface. When encountering special situations, the user can intervene manually. S6. While driving, the tablet is connected to the Internet via a 4G module and can remotely drive the wheelchair.

7. A method for using the electric wheelchair as claimed in claim 5, characterized in that: The electric wheelchair is used for games, which specifically includes the following steps: S1. A functional area is provided on the chair back, and the functional area at least includes an infrared receiving function and a distance measuring function; S2, loading the game in the tablet computer, collecting the driving data of the electric wheelchair through the tablet computer and the wheelchair controller, thereby realizing the movement operation in the game; S3, by setting a button for operating the infrared transmitter to start on the operation area; S4. Multiple people can transmit game data to each other through infrared transmitters and infrared receivers, and can play games in a wide square.

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