Intelligent electric wheelchair structure

Abstract

The utility model discloses an intelligent electric wheelchair structure which comprises a bottom plate, the bottom plate is fixedly connected with a seat through a supporting column, the two sides of the seat are both fixedly connected with armrests, the number of the armrests is two, a storage battery is arranged below the seat, the intelligent electric wheelchair structure further comprises a replacement device, and the replacement device is arranged outside the bottom plate. The utility model relates to the technical field of wheelchairs, in particular to an intelligent electric wheelchair structure, through cooperation of an electric telescopic rod, a curved column, an auxiliary wheel and a buffering assembly, additional supporting points are provided for a wheelchair, the supporting area of the wheelchair is effectively enlarged, the toppling risk is reduced, and the service life of the wheelchair is prolonged. The problems that when an existing intelligent electric wheelchair passes through some abrupt slope road sections, the inclination angle of the wheelchair is increased, the action direction of gravity is changed, and if the gravity center exceeds the stable supporting range of the wheelchair, the wheelchair may lose balance, so that the using effect of the existing intelligent electric wheelchair is reduced are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a wheelchair technical field, concretely is a kind of intelligent electric wheelchair structure. BACKGROUND

[0002] Intelligent electric wheelchair is the basis on traditional manual wheelchair, superimposes high-performance power, possesses artificial control controller, just can drive wheelchair to complete forward, backward, steering, standing, lying down and other multiple functions of new generation intelligent wheelchair.

[0003] The existing intelligent electric wheelchair car when using, user sits on wheelchair, moves wheelchair by operating direction lever, and the overall intelligent electric wheelchair car relies on battery to provide stable power support;

[0004] However, the existing intelligent electric wheelchair car when passing some relatively steep slope section, the inclination angle of wheelchair increases, the direction of gravity changes, the gravity center position in original balance state will be offset with the inclination of wheelchair, if when gravity center exceeds the stable support range of wheelchair, wheelchair can lose balance, and then dump, to cause the physical harm to user, thereby reduce the use effect of existing intelligent electric wheelchair car. UTILITARY MODEL CONTENTS

[0005] In view of the deficiency of prior art, the utility model provides a kind of intelligent electric wheelchair car structure, solve the existing intelligent electric wheelchair car when passing some relatively steep slope section, the inclination angle of wheelchair increases, the direction of gravity changes, the gravity center position in original balance state will be offset with the inclination of wheelchair, if when gravity center exceeds the stable support range of wheelchair, wheelchair can lose balance, and then dump, to cause the physical harm to user, thereby reduce the use effect of existing intelligent electric wheelchair car problem.

[0006] To realize the above-mentioned purpose, the utility model is realized by the following technical scheme: a kind of intelligent electric wheelchair car structure, including bottom plate, bottom plate is fixedly connected with seat by support column, the both sides of seat are fixedly connected with armrest, the number of armrest is two, the lower portion of seat is provided with battery, intelligent electric wheelchair car structure further includes replacement device, replacement device is set to the outside of bottom plate;Support device is provided with two groups, and is respectively set to the both sides of bottom plate;Control device is set to the surface of armrest;Wherein, replacement device is replaced to battery, the risk of intelligent electric wheelchair car dumping is reduced by support device, the user controls intelligent electric wheelchair car by control device.

[0007] Preferably, the replacing device comprises a shell fixedly connected to the surface of the bottom plate, a drawer slidingly connected to the inner wall of the shell and abutting against the outer wall of the battery, two hollow columns fixedly connected to the two sides of the shell, a crossbar penetrating through the hollow columns and movably connected to the hollow columns, a connecting plate fixedly connected to the end of the crossbar, a first spring having two ends respectively installed on the side of the connecting plate close to the crossbar and the outer wall of the hollow column, a connecting column fixedly connected to the side of the crossbar away from the connecting plate, penetrating through the hollow column and movably connected to the hollow column, and a baffle fixedly connected to the side of the connecting column away from the crossbar and abutting against the front surface of the drawer, and two fixing assemblies are arranged inside the two hollow columns, wherein the crossbar is driven by the connecting plate to drive the connecting column and the baffle to move away from the surface of the drawer, so that the drawer is opened and the battery is replaced.

[0008] Preferably, the fixing assembly comprises a clamping groove arranged on the surface of the crossbar, a pull rod penetrating through the hollow column and movably connected to the hollow column, a clamping block fixedly connected to the bottom of the pull rod, and a second spring having two ends respectively installed on the top of the clamping block and the inner wall of the hollow column, wherein the clamping block is driven by the crossbar to move out of the current clamping groove, so as to drive the pull rod to move and compress the second spring, and when the baffle moves away from the surface of the drawer, the clamping block is inserted into another clamping groove to fix the crossbar.

[0009] Preferably, the supporting device comprises two box bodies fixedly connected to the two sides of the bottom plate, two reinforcing plates fixedly connected to the outer walls of the two box bodies and the surface of the bottom plate, two electric telescopic rods fixedly connected to the inner walls of the two box bodies by bolts, two curved columns fixedly connected to the output ends of the two electric telescopic rods by bolts, penetrating through the box bodies and movably connected to the box bodies, and two auxiliary wheels arranged on the bottoms of the curved columns, and two buffer assemblies arranged outside the two box bodies, wherein the curved columns are driven by the electric telescopic rods to make the auxiliary wheels descend to the ground and contact the ground, so as to prevent the wheelchair from falling over.

[0010] Preferably, the buffer assembly comprises two hollow blocks fixedly connected to the ends of the two curved columns, two connecting blocks sleeved on the inner walls of the two hollow blocks and installed above the two auxiliary wheels, and four third springs having two ends respectively installed on the inner walls of the hollow blocks and the top of the connecting block, wherein the connecting block is driven by the auxiliary wheel to move in the hollow block, so that the third spring is deformed.

[0011] Preferably, the control device comprises a rocker installed on the surface of one armrest and a controller installed on the surface of the other armrest, wherein the user controls the wheelchair and moves the wheelchair by operating the rocker and the controller.

[0012] Beneficial effects

[0013] The utility model provides a kind of intelligent electric wheelchair structure.It has the following beneficial effects:The intelligent electric wheelchair structure, by the cooperation of box, reinforcing plate, electric telescopic link, curved column, auxiliary wheel and buffer assembly, additional support point is provided for wheelchair, effectively expand the support area of wheelchair, reduce the risk of dumping, solve the existing intelligent electric wheelchair when passing some relatively steep slope section, the inclination angle of wheelchair increases, the direction of action of gravity changes, the gravity center position in original balanced state will be offset with the inclination of wheelchair, if when gravity center exceeds the stable support range of wheelchair, wheelchair can lose balance, and then dumping occurs, thereby reduce the use effect problem of existing intelligent electric wheelchair.

[0014] By the cooperation of shell, drawer, cross bar, connecting plate, first spring, connecting column, baffle, hollow column and fixing assembly, the battery without electricity is replaced, when the power of existing intelligent electric wheelchair is depleted, currently mostly only can be charged to internal battery by the charging port set on wheelchair, the time of wheelchair charging is also relatively long, and when charging, user cannot use wheelchair, thereby greatly affect the problem of user travel convenience. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structure schematic diagram of the utility model;

[0016] Figure 2 It is Figure 1 The explosion map;

[0017] Figure 3 It is Figure 2 The structure schematic diagram of shell, drawer and baffle in it;

[0018] Figure 4 It is Figure 3 The enlarged view in A of it;

[0019] Figure 5 It is Figure 1 The structure schematic diagram of box, auxiliary wheel and hollow block in it;

[0020] Figure 6 It is Figure 5 The structure schematic diagram of hollow block, connecting block and third spring in it.

[0021] In the figure: 1, the base plate; 2, support column; 3, seat; 4, battery; 5, replacement device; 51, shell; 52, drawer; 53, cross bar; 54, connecting plate; 55, first spring; 56, connecting column; 57, baffle; 58, hollow column; 59, fixing assembly; 591, clamping groove; 592, pull rod; 593, clamping block; 594, second spring; 6, supporting device; 61, box body; 62, reinforcing plate; 63, electric telescopic rod; 64, curved column; 65, auxiliary wheel; 66, buffer assembly; 661, hollow block; 662, connecting block; 663, third spring; 7, armrest; 8, control device; 81, rocker; 82, controller. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] When passing through some relatively steep slope sections, the inclination angle of the wheelchair of the existing intelligent electric wheelchair vehicle increases, the direction of the action of gravity changes, the gravity center position in the original balanced state is offset with the inclination of the wheelchair, if the gravity center exceeds the stable support range of the wheelchair, the wheelchair can lose balance and then tip over, thereby reducing the use effect of the existing intelligent electric wheelchair vehicle.

[0024] Therefore, the utility model provides an intelligent electric wheelchair vehicle structure, solves the cooperation of the box body, reinforcing plate, electric telescopic rod, curved column, auxiliary wheel and buffer assembly, realizes providing the wheelchair vehicle with an additional support point, effectively expands the support area of the wheelchair vehicle, reduces the risk of tipping over, solves the problem that when passing through some relatively steep slope sections, the inclination angle of the wheelchair of the existing intelligent electric wheelchair vehicle increases, the direction of the action of gravity changes, the gravity center position in the original balanced state is offset with the inclination of the wheelchair, if the gravity center exceeds the stable support range of the wheelchair, the wheelchair can lose balance and then tip over, thereby reducing the use effect of the existing intelligent electric wheelchair vehicle.

[0025] Through the personnel in the art, the parts in the case are connected in sequence, and the specific connection and operation sequence should be referred to the following working principle, and the detailed connection means is the public technical knowledge in the art, and the following mainly introduces the working principle and process.

[0026] Embodiment one: by Figures 1-6It can be known that a kind of intelligent electric wheelchair structure, including bottom plate 1, driving assembly is arranged below bottom plate 1, driving assembly includes drive wheel, steering wheel and motor, motor is installed at the bottom of bottom plate 1, the output shaft of motor is installed with drive wheel, drive wheel is fixedly connected to the bottom of bottom plate 1 by suspension system on one side, and drive wheel, steering wheel is installed on the bottom of the bottom plate on the other side away from drive wheel, drive wheel is driven by motor to rotate, to make intelligent electric wheelchair move, the moving direction of intelligent electric wheelchair is changed by drive wheel, bottom plate 1 is fixedly connected with seat 3 by support column 2, both sides of seat 3 are fixedly connected with handrail 7, first, user sits on seat 3, makes two arms rest on two handrails 7, the number of handrail 7 is two, the bottom of seat 3 is provided with battery 4, the model of battery 4 is 6-DZM-20, battery 4 provides power for intelligent electric wheelchair, intelligent electric wheelchair structure further includes replacement device 5, supporting device 6 and control device 8, replacement device 5 is arranged outside bottom plate 1;Supporting device 6 is provided with two groups, and is arranged on both sides of bottom plate 1 respectively;Control device 8 is arranged on the surface of handrail 7;Then, user controls control device 8, to make wheelchair move, when passing through road with slope, supporting device 6 is used to support wheelchair, to prevent wheelchair from falling, when battery 4 is out of power, user replaces battery 4 out of power by replacement device 5, wherein, battery 4 is replaced by replacement device 5, the risk of intelligent electric wheelchair falling is reduced by supporting device 6, user controls intelligent electric wheelchair by control device 8;

[0027] In the specific implementation process, it is worth pointing out that driving assembly is arranged below bottom plate 1, driving assembly includes drive wheel, steering wheel and motor, motor is installed at the bottom of bottom plate 1, the output shaft of motor is installed with drive wheel, drive wheel is fixedly connected to the bottom of bottom plate 1 by suspension system on one side, and drive wheel, steering wheel is installed on the bottom of the bottom plate on the other side away from drive wheel, drive wheel is driven by motor to rotate, to make intelligent electric wheelchair move, the moving direction of intelligent electric wheelchair is changed by drive wheel, the model of battery 4 is 6-DZM-20, battery 4 provides power for intelligent electric wheelchair, first, user sits on seat 3, makes two arms rest on two handrails 7, then, user controls control device 8, to make wheelchair move, when passing through road with slope, supporting device 6 is used to support wheelchair, to prevent wheelchair from falling, when battery 4 is out of power, user replaces battery 4 out of power by replacement device 5;

[0028] Specifically, first, the user sits on the seat 3, and the two arms are placed on the two armrests 7, then the user controls the control device 8 to move the wheelchair, when passing through the road with slope, the support device 6 supports the wheelchair to prevent the wheelchair from falling, when the battery 4 is out of power, the user replaces the device 5 to quickly replace the battery 4 without power.

[0029] Embodiment two: by Figures 1-6 It can be known that the replacement device 5 comprises a shell 51, a drawer 52, a cross rod 53, a connecting plate 54, a first spring 55, a connecting column 56, a baffle 57, a hollow column 58 and a fixing assembly 59, the shell 51 is fixedly connected to the surface of the bottom plate 1, the drawer 52 is slidingly connected to the inner wall of the shell 51 and is attached to the outer wall of the battery 4, the hollow column 58 is two in number and is fixedly connected to the two sides of the shell 51, the cross rod 53 penetrates through the hollow column 58 and is movably connected with the hollow column 58, the cross rod 53 is moved in the hollow column 58 to limit the cross rod 53, the connecting plate 54 is fixedly connected to the end of the cross rod 53, when it is necessary to replace the battery 4, the user moves the two connecting plates 54, the connecting plate 54 drives the cross rod 53 to move, the first spring 55 is installed at the two ends of the connecting plate 54 respectively, one end of the first spring 55 is close to the cross rod 53 and the other end of the first spring 55 is close to the outer wall of the hollow column 58, the connecting plate 54 stretches the first spring 55, the connecting column 56 is fixedly connected to the side of the cross rod 53 away from the connecting plate 54, the cross rod 53 drives the connecting column 56 to move, penetrates through the hollow column 58 and is movably connected with the hollow column 58, the connecting column 56 is moved in the hollow column 58 to limit the connecting column 56, the baffle 57 is fixedly connected to the side of the connecting column 56 away from the cross rod 53, the connecting column 56 drives the baffle 57 to move and is attached to the front face of the drawer 52, the baffle 57 is away from the surface of the drawer 52, after finishing, the user pulls out the drawer 52 from the shell 51, the user takes out the battery 4 without power, puts the battery 4 with full power into the drawer 52, pushes the drawer 52 back into the shell 51, the fixing assembly 59 is provided with two groups and is arranged in the interiors of the two hollow columns 58, wherein the cross rod 53 is driven by the connecting plate 54 to make the connecting column 56 drive the baffle 57 to be away from the surface of the drawer 52, open the drawer 52 and replace the battery 4.

[0030] In the specific implementation process, it is worth pointing out that when the battery 4 needs to be replaced, the user moves the connecting plates 54 on both sides, the connecting plates 54 drive the horizontal rod 53 to move, the connecting plates 54 stretch the first springs 55, the horizontal rod 53 moves in the hollow column 58 and is limited, the horizontal rod 53 drives the connecting columns 56 to move, the connecting columns 56 move in the hollow column 58 and are limited, the connecting columns 56 drive the baffle 57 to move, so that the baffle 57 is away from the surface of the drawer 52, after finishing, the user pulls out the drawer 52 from the shell 51, the user takes out the battery 4 without electricity, puts the battery 4 with electricity into the drawer 52, and pushes the drawer 52 back into the shell 51, so as to realize the replacement of the battery 4 without electricity;

[0031] Further, the fixing assembly 59 comprises a clamping groove 591, a pull rod 592, a clamping block 593 and a second spring 594, the number of the clamping grooves 591 is two, and the clamping grooves 591 are arranged on the surface of the horizontal rod 53; the pull rod 592 penetrates through the hollow column 58 and is movably connected with the hollow column 58; with the movement of the horizontal rod 53, the clamping block 593 is driven by the horizontal rod 53 to be away from the current clamping groove 591 and contact with the surface of the horizontal rod 53, so as to drive the pull rod 592 to move upwards, the pull rod 592 moves in the hollow column 58 and is limited, and the clamping block 593 is fixedly connected to the bottom of the pull rod 592; the clamping block 593 compresses the second spring 594, when the baffle 57 is completely away from the surface of the drawer 52, the clamping block 593 is just aligned with another clamping groove 591, the second spring 594 rebounds, and under the elastic force of the second spring 594, the clamping block 593 is inserted into another clamping groove 591, so as to fix the horizontal rod 53, and the second spring 594 is installed at the top of the clamping block 593 and the inner wall of the hollow column 58 respectively; after the replacement of the battery 4 is completed, the user moves upwards to pull the pull rod 592 on both sides, so that the clamping block 593 is away from the clamping groove 591, at this time, the first spring 55 rebounds, and under the elastic force of the first spring 55, the baffle 57 returns to the initial position and contacts with the surface of the drawer 52, wherein the clamping block 593 is driven by the horizontal rod 53 to be away from the current clamping groove 591, so as to drive the pull rod 592 to move, so that the second spring 594 is compressed, and when the baffle 57 is away from the surface of the drawer 52, the clamping block 593 is inserted into another clamping groove 591, so as to fix the horizontal rod 53;

[0032] In the specific implementation process, it is particularly worth pointing out that the number of card slots 591 is two, and as the cross rod 53 moves, the card block 593 is driven by the cross rod 53 to leave the card slot 591 where it is currently located and contact the surface of the cross rod 53, thereby driving the pull rod 592 to move upwards. The pull rod 592 moves in the hollow column 58, and the pull rod 592 is limited. The card block 593 compresses the second spring 594. When the baffle 57 completely leaves the surface of the drawer 52, the card block 593 is just aligned with another card slot 591. The second spring 594 rebounds. Under the action of the elastic force of the second spring 594, the card block 593 is inserted into another card slot 591, so that the cross rod 53 is fixed. After the battery 4 is replaced, the user moves upwards to pull the pull rod 592 on both sides, so that the card block 593 leaves the card slot 591. At this time, the first spring 55 rebounds, and through the elastic force of the first spring 55, the baffle 57 returns to the initial position and contacts the surface of the drawer 52, thereby achieving the fixation of the cross rod 53;

[0033] Further, the supporting device 6 comprises a box body 61, a reinforcing plate 62, an electric telescopic rod 63, a curved column 64, an auxiliary wheel 65 and a buffer assembly 66. Two electric telescopic rods 63 are provided with a synchronizer to make the two electric telescopic rods 63 work synchronously. The model of the electric telescopic rod 63 is DYTZ-50. The number of the box body 61 is two, and each is fixedly connected to the two sides of the bottom plate 1. The number of the reinforcing plate 62 is two, and each is fixedly connected to the outer wall of the two box bodies 61 and the surface of the bottom plate 1. The reinforcing plate 62 increases the contact area between the box body 61 and the bottom plate 1, thereby improving the stability of the box body 61. The number of the electric telescopic rod 63 is two, and each is fixedly connected to the inner wall of the two box bodies 61 through a bolt. The number of the curved column 64 is two, and each is fixedly connected to the output end of the two electric telescopic rods 63 through a bolt. When the wheelchair needs to improve the anti-toppling performance, the user starts the two electric telescopic rods 63 through the control device 8. The two electric telescopic rods 63 drive the curved column 64 to move downward, penetrate through the box body 61 and movably connect with the box body 61. The curved column 64 moves in the box body 61 and is limited. The number of the auxiliary wheel 65 is two, and each is arranged at the bottom of the curved column 64. The curved column 64 drives the auxiliary wheel 65 to descend and contact the ground. After the operation is completed, the two electric telescopic rods 63 are stopped, so that the auxiliary wheel 65 contacts the ground and provides an additional support point for the wheelchair, effectively expands the support area of the wheelchair and reduces the risk of toppling. The buffer assembly 66 is provided with two groups, and each is arranged outside the two box bodies 61. The curved column 64 drives the auxiliary wheel 65 to descend to the ground and contact the ground under the drive of the electric telescopic rod 63, thereby preventing the wheelchair from toppling over;

[0034] In the specific implementation process, it is particularly worth pointing out that the reinforcing plate 62 increases the contact area between the box body 61 and the bottom plate 1, improves the stability of the box body 61, and the synchronizer is installed between the two electric telescopic rods 63 to make the two electric telescopic rods 63 work synchronously. The model of the electric telescopic rod 63 is DYTZ-50. When the wheelchair needs to improve the anti-toppling performance, the user starts the two electric telescopic rods 63 through the control device 8, the two electric telescopic rods 63 drive the curved column 64 to move downward, the curved column 64 moves in the box body 61, the curved column 64 is limited, and the curved column 64 descends with the auxiliary wheel 65 contacting the ground. After finishing, stop the two electric telescopic rods 63, realize that the auxiliary wheel 65 contacts the ground, and provides an additional support point for the wheelchair, effectively expands the support area of the wheelchair, and reduces the risk of toppling;

[0035] Further, the buffer assembly 66 includes hollow blocks 661, connecting blocks 662 and third springs 663. The hollow blocks 661 are provided with two, and are fixedly connected to the ends of the two curved columns 64. The connecting blocks 662 are provided with two, and are sleeved on the inner walls of the two hollow blocks 661. The connecting blocks 662 move in the hollow blocks 661, and are installed above the two auxiliary wheels 65. When the wheelchair travels on uneven road or encounters bumps, the auxiliary wheel 65 drives the connecting block 662 to move, and the third spring 663 is provided with four, and the two ends are respectively installed on the inner wall of the hollow block 661 and above the connecting block 662. The connecting block 662 causes the third spring 663 to deform. In this process, the third spring 663 repeatedly rebounds, consumes part of the kinetic energy through the friction between the connecting block 662 and the hollow block 661, plays a damping role, realizes the buffering of the auxiliary wheel 65, and improves the service life of the auxiliary wheel 65. The connecting block 662 moves in the hollow block 661 under the drive of the auxiliary wheel 65, so that the third spring 663 deforms;

[0036] In the specific implementation process, it is particularly worth pointing out that when the wheelchair travels on uneven road or encounters bumps, the auxiliary wheel 65 drives the connecting block 662 to move, the connecting block 662 moves in the hollow block 661, the connecting block 662 causes the third spring 663 to deform, in this process, the third spring 663 repeatedly rebounds, consumes part of the kinetic energy through the friction between the connecting block 662 and the hollow block 661, plays a damping role, realizes the buffering of the auxiliary wheel 65, and improves the service life of the auxiliary wheel 65;

[0037] Further, the control device 8 comprises a rocker 81 and a controller 82, the model of the rocker 81 is ALPS RK09, the model of the controller 82 is XMC4800, the connection mode between the controller 82 and the rocker 81 is analog signal connection, the rocker 81 outputs an analog voltage signal, the voltage value of which changes linearly with the deflection angle or pressing force of the rocker 81, the analog input pin of the controller 82 receives the signal, converts the analog signal into a digital signal through an internal analog-to-digital converter (ADC), and then analyzes and processes the signal by a processor, thereby controlling the moving direction and speed of the wheelchair, the connection mode between the controller 82 and the electric telescopic rod 63 is PWM control, the controller 82 outputs a control signal in a pulse width modulation (PWM) mode, the duty cycle of the PWM signal determines the average value of the power supply voltage of the motor of the electric telescopic rod 63, thereby controlling the telescopic speed, the controller 82 adjusts the duty cycle of the PWM signal according to the anti-tipping requirement of the wheelchair or other control instructions, and sends the PWM signal to the drive circuit of the electric telescopic rod 63, thereby achieving precise control of the electric telescopic rod 63, the rocker 81 is installed on the surface of one armrest 7; the controller 82 is installed on the surface of the other armrest 7; when a user sits on the wheelchair, the user moves the steering wheel at the bottom of the bottom plate 1 by controlling the rocker 81, thereby achieving direction control of the wheelchair, for example, left and right rotation of the rocker 81 can make the wheelchair turn left or right, forward and backward pushing of the rocker 81 can control the forward and backward movement of the wheelchair, the controller 82 is used to control the motor at the bottom of the bottom plate 1 to start the rotation of the drive wheel, thereby achieving the movement of the wheelchair, and the controller 82 is used to adjust other functional parameters of the wheelchair, such as speed adjustment, the user can accurately control the running state of the wheelchair according to actual requirements by operating the buttons on the controller 82, thereby achieving convenient and flexible movement, wherein the user controls the wheelchair and moves the wheelchair by controlling the rocker 81 and the controller 82;

[0038] In the implementation process, it is particularly worth pointing out that the model of the rocker 81 is ALPSRK09, the model of the controller 82 is XMC4800, the connection mode of the controller 82 and the rocker 81 is analog signal connection, the rocker 81 outputs an analog voltage signal, the voltage value of which changes linearly with the deflection angle or pressing force of the rocker 81, the analog input pin of the controller 82 receives the signal, converts the analog signal into a digital signal through an internal analog-to-digital converter (ADC), and then analyzes and processes it by the processor, thereby controlling the motion direction and speed of the wheelchair, the connection mode of the controller 82 and the electric telescopic rod 63 is PWM control, the controller 82 outputs a control signal through pulse width modulation (PWM), the duty cycle of the PWM signal determines the average value of the power supply voltage of the motor of the electric telescopic rod 63, thereby controlling the telescopic speed, the controller 82 adjusts the duty cycle of the PWM signal according to the anti-tilting requirement of the wheelchair or other control instructions, and sends it to the drive circuit of the electric telescopic rod 63, so as to realize accurate control of the electric telescopic rod 63, when the user sits on the wheelchair, the user moves the steering wheel at the bottom of the bottom plate 1 by controlling the rocker 81 to realize the direction control of the wheelchair, for example, rotating the rocker 81 left and right can make the wheelchair turn left or right, and pushing the rocker 81 forward and backward can control the forward and backward movement of the wheelchair, the controller 82 controls the motor at the bottom of the bottom plate 1 to start the drive wheel to rotate, thereby realizing the movement of the wheelchair, and the controller 82 is used to adjust other function parameters of the wheelchair, such as speed adjustment, the user can accurately control the running state of the wheelchair according to the actual requirement by operating the buttons on the controller 82, thereby realizing convenient and flexible movement;

[0039] Specific, the user in the wheelchair, by controlling the joystick 81 to achieve the direction control of the wheelchair, when the need to replace the battery 4, the user moves the connecting plate 54 on both sides, connecting plate 54 drive the horizontal rod 53 moves, connecting plate 54 will first spring 55 stretch, horizontal rod 53 in the hollow column 58 moves, horizontal rod 53 drive the connecting column 56 moves, connecting column 56 in the hollow column 58 moves, connecting column 56 drive the baffle 57 moves, make the baffle 57 away from the surface of the drawer 52, with the horizontal rod 53 moves, the block 593 in the drive of the horizontal rod 53 away from the current card slot 591, with the surface of the horizontal rod 53 contact, so as to drive the pull rod 592 up, pull rod 592 in the hollow column 58 moves, the pull rod 592 is limited, the block 593 compression second spring 594, when the baffle 57 completely away from the surface of the drawer 52, the block 593 is just aligned with another card slot 591, the second spring 594 rebound, under the action of the elastic force of the second spring 594, the block 593 is inserted into another card slot 591, the horizontal rod 53 is fixed, after finishing, the user will pull out the drawer 52 from the shell 51, the user will not take out the battery 4 of the full power, put the full power battery 4 into the drawer 52, put the drawer 52 back into the shell 51, at this time, the user moves up to pull the pull rod 592 on both sides, so that the block 593 away from the card slot 591, at this time the first spring 55 rebound, through the elastic force of the first spring 55, so that the baffle 57 back to the initial position, contact with the surface of the drawer 52, when the wheelchair needs to improve the anti-tilt performance, the user through the controller 82 start two electric telescopic rod 63, two electric telescopic rod 63 drive the curved column 64 downward, the curved column 64 in the box 61 moves, the curved column 64 from the auxiliary wheel 65 down, contact with the ground, after finishing, stop two electric telescopic rod 63, when the wheelchair is running on uneven road or encounter bumps, the auxiliary wheel 65 drive the connecting block 662 moves, the connecting block 662 in the hollow block 661 moves, the connecting block 662 makes the third spring 663 deformation, in the process, the third spring 663 will repeatedly rebound, through the friction between the connecting block 662 and the hollow block 661, the part of the kinetic energy is consumed, play the role of damping, buffer the auxiliary wheel 65.

[0040] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made in these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A smart electrically powered wheelchair structure comprising a base plate (1), characterized in that: The bottom plate (1) is fixedly connected with a seat (3) through a supporting column (2), both sides of the seat (3) are fixedly connected with armrests (7), the number of the armrests (7) is two, the lower portion of the seat (3) is provided with a storage battery (4), and the intelligent electric wheelchair structure further comprises: A replacement device (5) is arranged outside the bottom plate (1); Supporting devices (6) are arranged on both sides of the bottom plate (1); A control device (8) is arranged on the surface of the armrest (7); The storage battery (4) is replaced through the replacement device (5), the risk of the intelligent electric wheelchair toppling is reduced through the supporting device (6), and the user controls the intelligent electric wheelchair through the control device (8).

2. The intelligent electric-powered wheelchair structure according to claim 1, characterized in that: The replacement device (5) comprises: A shell (51) is fixedly connected to the surface of the bottom plate (1); A drawer (52) is slidingly connected to the inner wall of the shell (51) and is attached to the outer wall of the storage battery (4); Two hollow columns (58) are fixedly connected to the two sides of the shell (51); A cross rod (53) penetrates the hollow columns (58) and is movably connected with the hollow columns (58); A connecting plate (54) is fixedly connected to the end of the cross rod (53); First springs (55) are mounted on the side, close to the cross rod (53), of the connecting plate (54) and the outer wall of the hollow column (58); A connecting column (56) is fixedly connected to the side, away from the connecting plate (54), of the cross rod (53), penetrates the hollow column (58) and is movably connected with the hollow column (58); A baffle (57) is fixedly connected to the side, away from the cross rod (53), of the connecting column (56) and is attached to the front of the drawer (52); Two fixing assemblies (59) are arranged in the interiors of the two hollow columns (58); The cross rod (53) drives the connecting column (56) to drive the baffle (57) to move away from the surface of the drawer (52) and open the drawer (52) to replace the storage battery (4).

3. The intelligent electric-powered wheelchair structure according to claim 2, characterized in that: The fixing assembly (59) comprises: A clamping groove (591) is formed in the surface of the cross rod (53); A pull rod (592) penetrates the hollow column (58) and is movably connected with the hollow column (58); A clamping block (593) is fixedly connected to the bottom of the pull rod (592); Second springs (594) are mounted on the upper portion of the clamping block (593) and the inner wall of the hollow column (58); The clamping block (593) is driven by the cross rod (53) to move away from the clamping groove (591), thereby driving the pull rod (592) to move and compressing the second spring (594), when the baffle (57) moves away from the surface of the drawer (52), the clamping block (593) is inserted into another clamping groove (591) to fix the cross rod (53).

4. The intelligent electric-powered wheelchair structure of claim 1, wherein: The supporting device (6) comprises: Box (61), the number is two, and is fixedly connected to the two sides of the bottom plate (1); Reinforcing plate (62), the number is two, and is fixedly connected to the outer wall of the two box (61) and the surface of the bottom plate (1); Electric telescopic rod (63), the number is two, and is fixedly connected to the inner wall of two box (61) through bolt; Curved column (64), the number is two, and is fixedly connected to the output end of two electric telescopic rod (63) through bolt, and penetrates the box (61), and is movably connected with the box (61); Auxiliary wheel (65), the number is two, and is arranged at the bottom of the curved column (64); Buffer assembly (66), two groups are arranged, and are arranged outside the two box (61); Wherein, the curved column (64) is driven by the electric telescopic rod (63), so that the auxiliary wheel (65) is lowered to the ground, and is in contact with the ground, which prevents the wheelchair from falling.

5. The intelligent electric-powered wheelchair structure according to claim 4, characterized in that: The buffer assembly (66) comprises: Hollow block (661), two are arranged, and are fixedly connected to the end of two curved column (64); Connecting block (662), two are arranged, and are sleeved on the inner wall of two hollow block (661), and are installed above two auxiliary wheel (65); Third spring (663), four are arranged, and two ends are installed on the inner wall of the hollow block (661) and the upper of the connecting block (662); Wherein, the connecting block (662) is driven by the auxiliary wheel (65) to move in the hollow block (661), so that the third spring (663) is deformed.

6. The intelligent electric-powered wheelchair structure of claim 1, wherein: The control device (8) comprises: Rocker (81), installed on the surface of one of the armrests (7); Controller (82), installed on the surface of another armrest (7); Wherein, the user controls the wheelchair and moves the wheelchair by controlling the rocker (81) and the controller (82).

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