CN213964004U - Multifunctional intelligent wheelchair - Google Patents

Abstract

The present application relates to a multifunctional intelligent wheelchair, which includes a wheelchair body, a footrest, a seat, a backrest, a main track frame, a lift drive and a three-segment track. It is hinged on the seat through the second rotating shaft; a first drive is arranged between the wheelchair body and the footrest, a second drive is arranged between the wheelchair body and the seat, and a third drive is arranged between the seat and the backrest; three-segment crawler track Including middle track, front track, front drive, rear track, rear drive, track drive. In this way, through the adjustment of multiple angles of the seat, the patient can sit, lie down and stand, thereby avoiding long-term fatigue and pressure ulcers; The position state of the crawler, middle crawler and rear crawler can realize the up and down steps of the wheelchair, which is convenient for patients to use and travel independently, and reduces the burden of caregivers.

Description

Multifunctional intelligent wheelchair

Technical Field

The application relates to the technical field of wheelchairs, in particular to a multifunctional intelligent wheelchair.

Background

Wheelchairs are chairs equipped with wheels to help replace walking and are classified into electric and manual folding wheelchairs. The wheelchair not only meets the requirements of physical disabilities and mobility-handicapped people for riding instead of walking, but also is more important to facilitate the family members to move and take care of the patients, so that the patients can do physical exercises and participate in social activities by means of the wheelchair.

The common wheelchair generally comprises front and rear wheels, a pedal, left and right armrests, a seat, a backrest and the like. However, the seat part of the traditional wheelchair is relatively fixed, so that the patient can only sit on the wheelchair when using the wheelchair, and the patient can feel uncomfortable and tired due to the sitting posture kept for a long time, and pressure sores are easily generated, so that the rehabilitation of the patient is not facilitated. Moreover, the traditional wheelchair can only travel on a gentle road but cannot go up and down stairs, only patients need to detour or change destinations, and the independent travel of the patients is not facilitated; the traditional wheelchair has the defects that the wheelchair or patients need to be moved up and down along the steps, time and labor are wasted, and great troubles are brought to caregivers.

Therefore, how to solve the problem that the seat part of the existing wheelchair is fixed, so that the patient is easy to be tired and uncomfortable, and cannot go up and down the steps, so that the patient is inconvenient to go out independently is a key technical problem to be solved by technical personnel in the field.

SUMMERY OF THE UTILITY MODEL

For overcoming the problem that exists in the correlation technique to a certain extent at least, the utility model aims to provide a multi-functional intelligent wheelchair, it can solve the seat part of current wheelchair and fix, makes the patient personnel tired uncomfortable easily, can not go up the lower step moreover, is not convenient for the problem of patient personnel's independent trip. The technical effects that can be produced by the preferred technical scheme in the technical schemes provided by the application are described in detail in the following.

The application provides a multifunctional intelligent wheelchair, which comprises a wheelchair main body, a pedal plate arranged on the front side of the wheelchair main body, a seat arranged above the wheelchair main body, a backrest arranged on the rear side of the seat, a track main frame connected below the wheelchair main body in a lifting manner, lifting drives connected between the wheelchair main body and the track main frame and used for driving the track main frame to lift, and three-section type tracks symmetrically arranged on the left side and the right side of the track main frame, wherein when the lifting drives the track main frame to move to a first state, the three-section type tracks are lower than the wheelchair main body and can drive the wheelchair main body to move; the end parts of the pedal and the seat are hinged to the front side of the wheelchair main body through a first rotating shaft, and the backrest is hinged to one end, far away from the pedal, of the seat through a second rotating shaft; a first drive for driving the pedal to rotate along the first rotating shaft is arranged between the wheelchair main body and the pedal, a second drive for driving the seat to rotate along the first rotating shaft is arranged between the wheelchair main body and the seat, and a third drive for driving the backrest to rotate along the second rotating shaft is arranged between the seat and the backrest; the three-section type crawler comprises a middle crawler fixed on the crawler main frame, a front crawler rotatably connected to the front end of the middle crawler, a front driver for driving the front crawler to rotate, a rear crawler rotatably connected to the rear end of the middle crawler, a rear driver for driving the rear crawler to rotate, and a crawler driver for driving the front crawler, the rear crawler and the middle crawler to advance.

Preferably, the foot board and the backrest are linked by a link mechanism and driven by one of the first drive and the third drive.

Preferably, the link mechanism comprises a first link fixed on the pedal plate at a position close to the first rotating shaft, a second link fixed on the end of the backrest, and a transmission rod hinged between the first link and the second link, wherein the second rotating shaft is located at the connection position of the second link and the backrest.

Preferably, the pedal comprises a pedal body and a pedal bracket hinged with the seat, and a knee baffle is arranged at the front side of the pedal bracket and detachably connected to the pedal bracket through a baffle buckle.

Preferably, the wheelchair main part includes the frame and sets up two wheel components in the frame left and right sides, the track body frame articulates through the lift pivot the rear side of frame, and be located two between the wheel component.

Preferably, the lifting drive is a linear drive, and two ends of the lifting drive are respectively hinged to the frame and the main track frame.

Preferably, the wheel assembly comprises a driving wheel positioned at the front part of the frame, an omnidirectional wheel positioned at the rear part of the frame and a wheel drive in transmission connection with the driving wheel.

Preferably, the driving wheel and the omni wheel are hinged to the frame through wheel arms, damping springs are hinged between the wheel arms and the frame, and the wheel arms, the damping springs and the frame form a triangular support.

Preferably, a battery assembly is arranged in the track main frame, and the first drive, the second drive, the third drive, the lifting drive, the front drive, the rear drive and the track drive are all electrically connected with the battery assembly.

Preferably, handrails are arranged on the left and right sides of the backrest, a control handle and a control screen are arranged on the handrails, and the control handle and the control screen are communicably connected with the first drive, the second drive, the third drive, the lifting drive, the front drive, the rear drive and the crawler drive.

The technical scheme provided by the application can comprise the following beneficial effects:

be provided with between wheelchair main part and the running-board and be used for driving the running-board along first pivot pivoted first drive, be provided with between wheelchair main part and the seat and be used for driving the seat along first pivot pivoted second drive, be provided with between seat and the back and be used for driving the back along second pivot pivoted third drive, through first drive, second drive and third drive alright realize the angle modulation of running-board, seat and back. When a patient needs to sit, the first drive adjusts the pedal to be in a vertical state, the second drive adjusts the seat to be in a horizontal state, and the third drive adjusts the backrest to be in a vertical state, so that the patient can conveniently step on and lean on the chair; when a patient needs to lie flat, the first drive adjusts the pedal to be in a horizontal state, the second drive adjusts the seat to be in a horizontal state, the third drive adjusts the backrest to be in a horizontal state, and the three are parallel and level to lie flat; when patient personnel need stand, the footboard is adjusted to vertical state to first drive, and the seat is adjusted to vertical state to the second drive, and the third drive is adjusted the back to vertical state, and the three is vertical, need not the auxiliary personnel and can realize standing through the seat, and is convenient and reliable. So set up, through the regulation of a plurality of angles of seat, can realize patient personnel's seat, tie lie and stand, promote the degree of freedom of health activity, and then avoid sitting fatigue for a long time to and press the production of sore.

When the wheelchair needs to go up and down the steps, the main frame of the crawler belt is driven to move to a first state through lifting driving, so that the three-section crawler belt can drive the wheelchair main body to move; when the step is ascended, the front crawler belt is driven to ascend relative to the middle crawler belt through the front drive, or the rear crawler belt is driven to ascend relative to the middle crawler belt through the rear drive belt, so that the ascending angle can be matched with the step angle, and the ascending crawler belt ascends the step; when the stair is descended, the front crawler belt is driven to swing downwards relative to the middle crawler belt through the front drive, or the rear crawler belt is driven to swing downwards relative to the middle crawler belt through the rear drive belt so as to support the three-section crawler belt, so that the three-section crawler belt is parallel to the stair surface, the stair surface can be conveniently contacted with the stair fully, and the stability is improved; when the syllogic track is in the step middle part, adjust preceding track, well track and back track to same straight line on, and then guarantee the steady of upper and lower step, promote the security performance. So set up, adopt the design of syllogic track, the up-and-down step of wheelchair is realized to the position state through adjusting preceding track, well track and back track, is favorable to adapting to multiple road conditions, the patient personnel's of being convenient for independent utility and trip to reduce care personnel's burden.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a perspective block diagram of the present multi-functional intelligent wheelchair, according to some exemplary embodiments;

FIG. 2 is a front view of the present multi-functional intelligent wheelchair, according to some exemplary embodiments;

FIG. 3 is a perspective view of a seat portion shown in accordance with some exemplary embodiments;

FIG. 4 is a front view of a seat portion shown in accordance with some exemplary embodiments;

FIG. 5 is a perspective view of a connection structure of a three-segment track, according to some exemplary embodiments;

FIG. 6 is a front view of a connection structure of a three-segment track, according to some exemplary embodiments;

FIG. 7 is a perspective view of a three-segment track shown in accordance with some exemplary embodiments;

FIG. 8 is an internal block diagram of a center track shown in accordance with some exemplary embodiments;

FIG. 9 is a block diagram illustrating a front track, according to some exemplary embodiments;

FIG. 10 is a block diagram illustrating a rear track in accordance with some exemplary embodiments;

FIG. 11 is a perspective view of a wheelchair body shown in accordance with some exemplary embodiments;

figure 12 is a front view of a wheelchair body shown in accordance with some exemplary embodiments.

In the figure: 1. a wheelchair main body; 11. a frame; 12. a drive wheel; 13. an omni wheel; 14. driving wheels; 2. a foot pedal; 21. a pedal body; 22. a pedal bracket; 3. a seat; 31. a first link; 32. a second link; 33. a transmission rod; 34. a second drive; 35. a third drive; 4. a backrest; 41. a telescopic buckle; 42. a handrail; 43. a control handle; 44. a control screen; 5. a knee baffle; 6. a three-section crawler belt; 61. a front track; 62. a middle crawler belt; 63. a rear crawler belt; 64. driving a crawler; 7. a track main frame; 8. lifting and driving; 9. a battery assembly; 101. a driving wheel; 102. a driven wheel; 103. a transmission belt; 104. a front reduction motor; 105. a rear reduction motor; 106. a front gear; 107. a rear gear; 108. a front gear ring; 109. a rear ring gear.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus or methods consistent with aspects of the present application.

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. Further, the entire contents of the configurations shown in the following embodiments are not limited to those necessary as a solution of the invention described in the claims.

Referring to fig. 1 to 12, the present embodiment provides a multifunctional intelligent wheelchair, which includes a wheelchair main body 1, a pedal 2, a seat 3, a backrest 4, a track main frame 7, a lifting drive 8 and a three-section track 6, wherein the wheelchair main body 1 includes a frame 11 and wheel assemblies fixed on both sides of the frame 11, and the frame 11 is driven to move by the rotation of the wheel assemblies; the pedal 2, the seat 3 and the backrest 4 form a seat part of the wheelchair for patients to sit on, specifically, the pedal 2 is positioned on the front side of the wheelchair main body 1 and is used for bearing the legs of the patients, the seat 3 is positioned above the wheelchair main body 1 and is used for bearing the whole weight of the patients, and the backrest 4 is positioned on the rear side of the seat 3 and is used for the patients to lean on; the crawler main frame 7 is arranged below the wheelchair main body 1 in a displaceable manner, and the lifting drive 8 is arranged between the wheelchair main body 1 and the crawler main frame 7 and is used for driving the crawler main frame 7 to displace relative to the wheelchair main body 1; the three-section type caterpillar band 6 is arranged on the left side and the right side of the caterpillar band main frame 7 and is used for driving the wheelchair main body 1 and the caterpillar band main frame 7 to move forwards. Because the three-section type crawler 6 is fixedly connected with the crawler main frame 7, the three-section type crawler 6 can also move relative to the wheelchair main body 1 when the lifting drive 8 drives the crawler main frame 7 to move.

Specifically, the displacement of the track main frame 7 has two states, when the lifting drive 8 drives the track main frame 7 to displace to the first state, the track main frame 7 drives the three-section track 6 to displace to the first position, and at the moment, the three-section track 6 is lower than the lowest part of the wheelchair main body 1, so that the wheelchair main body 1 is supported and suspended, and the three-section track 6 can drive the wheelchair main body 1 to move; when the lifting drive 8 drives the track main frame 7 to move to the second state, the track main frame 7 drives the three-section type track 6 to move to the second state, and at the moment, the three-section type track 6 is higher than the lowest part of the wheelchair main body 1, so that the three-section type track 6 is suspended, and the wheelchair main body 1 is supported by the wheel assembly and is driven to move. Here, the displacement of the crawler main frame 7 may be vertical lifting or rotational lifting, and it is only necessary that the three-stage crawler 6 can support the wheelchair main body 1.

The ends of the pedal 2 and the seat 3 are hinged to the front side of the wheelchair main body 1 through a first rotating shaft, specifically, the upper end of the pedal 2, the front end of the seat 3 and the front end of the frame 11 are hinged together through the first rotating shaft to realize the relative rotation of the three, so as to keep the frame 11 still and rotate the pedal 2 or the seat 3 along the first rotating shaft, and further realize the multi-angle adjustment of the seat, for example, the pedal 2 is adjusted to be horizontal and the legs can be lifted, and the seat 3 is adjusted to be vertical and the patient can stand up; the backrest 4 is hinged to the seat 3 through a second rotating shaft at an end far away from the pedal 2, specifically, the lower end of the backrest 4 is hinged to the rear end of the seat 3, so as to keep the seat 3 stationary, and the backrest 4 is rotated along the second rotating shaft, so that the adjustment of the leaning angle is realized, for example, the backrest 4 is adjusted to be horizontal and a patient can lie down.

In order to adjust the state of the seat 3 conveniently, a first drive for driving the pedal 2 to rotate along a first rotating shaft is arranged between the wheelchair main body 1 and the pedal 2, a second drive 34 for driving the seat 3 to rotate along the first rotating shaft is arranged between the wheelchair main body 1 and the seat 3, a third drive 35 for driving the backrest 4 to rotate along a second rotating shaft is arranged between the seat 3 and the backrest 4, and the angle adjustment of the pedal 2, the seat 3 and the backrest 4 can be realized through the first drive, the second drive 34 and the third drive 35. When a patient needs to sit, the first drive adjusts the footrest 2 to the vertical state, the second drive 34 adjusts the seat 3 to the horizontal state, and the third drive 35 adjusts the backrest 4 to the vertical state so that the person steps on and leans against; when a patient needs to lie down, the first drive adjusts the pedal 2 to be horizontal, the second drive 34 adjusts the seat 3 to be horizontal, and the third drive 35 adjusts the backrest 4 to be horizontal, so that the three are parallel and level for lying down; when patient personnel need stand, the footboard 2 is adjusted to vertical state to first drive, and the seat 3 is adjusted to vertical state to second drive 34, and the back 4 is adjusted to vertical state to third drive 35, and the three is vertical, need not the auxiliary personnel and can realize standing through the seat, and is convenient and reliable.

It should be noted that, in order to avoid the patient falling down, when the patient stands, the footrest 2, the seat 3 and the backrest 4 may be inclined at a certain angle with respect to the vertical direction for the patient to lean against; the first drive, the second drive 34, and the third drive 35 may be rotational drives or linear drives.

The three-section type crawler 6 comprises a front crawler 61, a middle crawler 62, a rear crawler 63, a front drive, a rear drive and a crawler drive 64, wherein the middle crawler 62 is fixed on the crawler main frame 7 and used for driving the crawler main frame 7 to move, the front crawler 61 and the rear crawler 63 are rotatably connected to two ends of the middle crawler 62 and ensure that the front crawler 61 is positioned at the front side of the wheelchair main body 1, the rear crawler 63 is positioned at the rear side of the wheelchair main body 1, and the front drive is arranged between the front crawler 61 and the middle crawler 62 and used for driving the front crawler 61 to rotate relative to the middle crawler 62 so as to realize the up-and-down swinging of the front crawler 61 and be beneficial to the up-and-down steps; the rear drive is arranged between the rear crawler 63 and the middle crawler 62 and is used for driving the rear crawler 63 to rotate relative to the middle crawler 62 so as to realize the up-and-down swinging of the rear crawler 63 and be beneficial to the up-and-down steps; the crawler belt drive 64 is used for driving the front crawler belt 61, the rear crawler belt 63 and the middle crawler belt 62 to move, and the wheelchair main body 1 is driven to move along the steps through the movement of the three-section crawler belt 6.

When the wheelchair needs to go up and down the steps, the main track frame 7 is driven to move to the first state through the lifting drive 8, so that the three-section type track 6 can drive the wheelchair main body 1 to move; when the steps are ascended, the front crawler 61 is driven to ascend relative to the middle crawler 62 through the front drive, or the rear crawler 63 is driven to ascend relative to the middle crawler 62 through the rear drive belt, so that the ascending angle is matched with the step angle, and the steps are ascended through the ascended crawler; when the user goes down the steps, the front crawler 61 is driven to swing downwards relative to the middle crawler 62 through front driving, or the rear crawler 63 is driven to swing downwards relative to the middle crawler 62 through rear driving so as to prop up the three-section crawler 6, so that the three-section crawler 6 is parallel to the stair surface, the three-section crawler 6 is convenient to fully contact with the steps, and the stability is improved; when the three-section type crawler 6 is positioned in the middle of the step, the front crawler 61, the middle crawler 62 and the rear crawler 63 are adjusted to be on the same straight line, so that the stability of going up and down the step is ensured, and the safety performance is improved.

By the arrangement, patients can sit, lie down and stand by adjusting the plurality of angles of the seat, so that the freedom degree of body movement is improved, and further the long-time sitting fatigue and the pressure sore generation are avoided; and the design of the three-section type crawler 6 is adopted, the upper and lower steps of the wheelchair are realized by adjusting the position states of the front crawler 61, the middle crawler 62 and the rear crawler 63, the wheelchair is favorable for adapting to various road conditions, is convenient for patients to use and go out independently, and reduces the burden of caregivers.

In this embodiment, the pedal 2 and the backrest 4 are linked through a link mechanism, and under the action of the link mechanism, when the pedal 2 rotates clockwise relative to the first rotating shaft, the backrest 4 also rotates clockwise relative to the second rotating shaft, so that the pedal 2 and the backrest 4 rotate synchronously, and the consistency of seat adjustment is improved; in addition, one of the first drive and the third drive 35 is used for driving, so that the use of one drive can be reduced only by the action of the first drive or only by the action of the third drive 35, the use of a mechanical structure is saved, the structure is simplified, and the efficiency is improved. Here, the first drive is simplified to the form of a third drive 35+ linkage.

The linkage mechanism comprises a first linkage 31, a second linkage 32 and a transmission rod 33, the first linkage 31 is fixed on the pedal 2 and is close to the first rotating shaft, a certain distance is kept between the first linkage 31 and the first rotating shaft, so that the pedal 2 and the first linkage 31 form a lever structure, and the pedal 2 can be driven to rotate relative to the first rotating shaft by pulling or pushing the first linkage 31; the second connecting rod 32 is fixed at the end of the backrest 4, and the second rotating shaft is located at the connecting position of the second connecting rod 32 and the backrest 4, so that the second connecting rod 32 and the backrest 4 form a lever structure, and the backrest 4 can be driven to rotate relative to the second rotating shaft by pulling or pushing the second connecting rod 32; the transmission rod 33 is hinged between the first link 31 and the second link 32 to allow the first link 31 and the second link 32 to be transmitted, thereby achieving the synchronous transmission of the footrest 2 and the backrest 4. Therefore, the transmission distance of the link mechanism can be reduced through the structure of the labor-consuming lever, the driving distance is reduced, and the device is stable and reliable.

Of course, the second link 32 forms an angle with the backrest 4, and the second link 32 does not hinder the rotation of the backrest 4 when the backrest 4 and the seat 3 are in the same plane.

In some preferred schemes, in order to ensure the linkage stability of the backrest 4 and the pedal 2, two link mechanisms are symmetrically arranged and are respectively positioned at the left side and the right side of the seat 3, so that the linkage balance can be ensured; moreover, the ends of the two second connecting rods 32 far away from the second rotating shaft are connected together through the cross rod, so that the two connecting rod mechanisms can be linked together, and the firmness and the stability of the connecting rods can be ensured.

In order to improve the efficiency and stability of the drive, the second drive 34 and the third drive 35 are both arranged as linear drives, specifically, one end of the second drive 34 is hinged on the wheelchair main body 1 at a position far away from the first rotating shaft, and the other end is hinged on the seat 3 at a position far away from the first rotating shaft; the third drive 35 is hinged at one end to the seat 3 at a position remote from the second pivot and at the other end to the crossbar. In this way, the second drive 34 and the third drive 35 have not only a driving function but also a supporting function, and ensure the connection stability of the footrest 2, the seat 3, and the backrest 4.

Here, the first drive, the second drive 34, and the third drive 35 may be configured as a hydraulic cylinder, an air cylinder, or a telescopic motor, which is not described in detail herein.

In some preferred schemes, the seat 3 comprises a seat frame and a seat cushion positioned on the seat frame, the seat frame is hinged between the pedal 2 and the backrest 4, the seat cushion is supported, the stability of the seat 3 is enhanced, and the seat cushion can improve the comfort level of the patient and prevent the generation of pressure sores.

In particular, the second drive 34 and the third drive 35 are both hinged in a middle position of the seat frame.

Backrest 4 is including main part and pars contractilis, and wherein, the lower extreme of main part is articulated with seat 3, can supply disease personnel back to lean on, and flexible position is located the main part top, can supply disease personnel head to lean on, and the pars contractilis passes through flexible knot 41 and is connected with the main part moreover to make pars contractilis connect on the main part, conveniently adjust the flexible length of backrest 4, so that be applicable to the disease personnel of different heights. When it is desired to stand or lie flat, the backrest 4 may be lengthened.

Wherein, be provided with the back of the body pillow on the main part, be provided with the headrest on the pars contractilis, and then promote the comfortable degree of back and head when patient personnel lean on.

Further, two armrests 42 are provided on the backrest 4 and are respectively located at the left and right sides of the seat 3, so that the patient can conveniently place the elbow, which is beneficial to standing and sitting.

In some embodiments, the pedal plate 2 includes a pedal body 21 and a pedal bracket 22, one end of the pedal bracket 22 is hinged to the seat 3, and the other end is fixed with the pedal body 21. The knee baffle 5 is arranged on the front side of the pedal bracket 22, when a patient needs to stand, the knee baffle 5 can play a role in protection, and the patient is prevented from kneeling when standing; and knee baffle 5 passes through baffle to detain detachably and connects on pedal support 22, specifically, the both sides of knee baffle 5 are provided with the connecting band, and the connecting band is detained fixedly with the baffle, and under the drive of baffle knot, the connecting band is fixed on pedal support 22 to make knee baffle 5 protect at patient's knee position.

In the embodiment, the wheelchair main body 1 comprises a frame 11 and two wheel assemblies arranged on the left side and the right side of the frame 11, the frame 11 is driven to move forwards through the wheel assemblies, the track main frame 7 is hinged to the rear side of the frame 11 through a lifting rotating shaft, and the track main frame 7 can be rotated downwards when the wheelchair is used, so that patients lean on the backrest 4, and the wheelchair is safe and comfortable; and the track main frame 7 is positioned between the two wheel components, so that the three-section type track 6 and the track main frame 7 can be hidden and arranged at the inner side of the wheelchair main body 1, the external function use is not influenced, the occupied space of the wheelchair can be saved, and the wheelchair is convenient to operate and use.

Specifically, lift drive 8 sets up at linear drive, and lift drive 8's one end articulates on frame 11, and the other end articulates on track body frame 7, and wherein, lift drive 8 can be close to the setting of lift pivot to form the lever structure of doing all can, be favorable to driving the state of track body frame 7, and reduce the driving distance.

Here, the lifting drive 8 may be provided as a hydraulic cylinder, an air cylinder, or a telescopic motor.

In some embodiments, the front track 61, the middle track 62 and the rear track 63 are configured as similar track structures, each including a housing, a driving wheel 101 and a driven wheel 102 rotatably disposed at two ends of the housing, and a transmission belt 103 surrounding and engaged with the driving wheel 101 and the driven wheel 102, wherein the driving wheel 101 is driven to rotate to realize rotation of the transmission belt 103, and the housing is driven to travel by the transmission belt 103. The driving wheel 101 of the front crawler 61 is coaxially and in transmission connection with the driven wheel 102 of the middle crawler 62, and the driving wheel 101 of the rear crawler 63 is coaxially and in transmission connection with the driving wheel 101 of the middle crawler 62, so that the three crawlers can integrally and synchronously rotate only by driving the driving wheel 101 of the middle crawler 62, the use of a driving structure and a mechanical structure is reduced, and the integral advance of the three-section crawler 6 is realized.

Of course, the driving wheel 101 of the front crawler 61 may be coaxially and drivingly connected with the driving wheel 101 of the middle crawler 62, and the driving wheel 101 of the rear crawler 63 may be coaxially and drivingly connected with the driven wheel 102 of the middle crawler 62.

In some preferred schemes, the front drive comprises a front speed reduction motor 104, a front gear 106 and a front gear ring 108, wherein the front speed reduction motor 104 is arranged inside the shell of the middle crawler belt 62, which is beneficial to ensuring the stability of the drive; the front gear 106 is arranged on the middle crawler belt 62 and is in transmission connection with the output shaft of the front speed reducing motor 104; the front gear ring 108 is arranged on the shell of the front crawler 61 and close to one side of the middle crawler 62, the front gear ring 108 is coaxially arranged with the driving wheel 101 of the front crawler 61 and is meshed with the front gear 106, the front gear ring 108 is driven to rotate through the rotation of the front gear 106, and further the front crawler 61 is driven to rotate by taking the axial direction of the front gear ring 108 as a shaft, so that the rotation of the front crawler 61 can be realized by controlling the front speed reducing motor 104, the operation is simple and convenient, the mechanical structure is stable and reliable, and the cost is saved.

Correspondingly, the rear drive comprises a rear speed reduction motor 105, a rear gear 107 and a rear gear ring 109, wherein the rear speed reduction motor 105 is arranged inside the shell of the middle crawler belt 62, which is beneficial to ensuring the driving stability; the rear gear 107 is arranged on the middle crawler belt 62 and is in transmission connection with an output shaft of the rear speed reducing motor 105; the rear gear ring 109 is arranged on the shell of the rear crawler 63 and close to one side of the middle crawler 62, the rear gear ring 109 and the driving wheel 101 of the rear crawler 63 are coaxially arranged and meshed with the rear gear 107, the rear gear 107 rotates to drive the rear gear ring 109 to rotate, and further the rear crawler 63 is driven to rotate by taking the axial direction of the rear gear ring 109 as a shaft, so that the rear crawler 63 can rotate by controlling the rear speed reducing motor 105, the operation is simple and convenient, the mechanical structure is stable and reliable, and the cost is saved.

The track driver 64 is provided with a driving motor which is fixed on the track main frame 7 and is in transmission connection with the driving wheel 101 of the middle track 62 so as to drive the middle track 62 to rotationally advance and further drive the front track 61 and the rear track 63 to rotationally advance, and the driving motor is stable and reliable. Here, since the three-stage crawler 6 has two sets, the crawler drive 64 is provided with two corresponding sets and symmetrically fixed to the mounting bars of the crawler main frame 7.

In some preferred schemes, a plurality of bearing wheels are arranged below the inside of the shell, and are uniformly distributed between the driving wheel 101 and the driven wheel 102 and are in transmission with the inner side of the lower part of the transmission belt 103 in a propping manner, so that the tightness of the transmission belt 103 can be enhanced under the action of the bearing wheels, the transmission belt 103 is prevented from deforming when going up and down steps, and the stability and the safety of the going up and down steps are improved.

Specifically, the transmission belt 103 is arranged on the rubber belt, so that the friction force between the transmission belt and the step surface can be improved, and the transmission belt has good shock absorption performance, is stable and reliable.

In the present embodiment, the wheel assembly includes a driving wheel 12, an omni wheel 13, and a wheel drive 14, wherein the driving wheel 12 is rotatably disposed at a front position of the frame 11; the wheel drive 14 is in transmission connection with the drive wheel 12 and is used for driving the drive wheel 12 to rotate so as to drive the wheelchair main body 1 to move; the omni wheel 13 is rotatably arranged at the rear position of the frame 11 and used for realizing the steering of the wheelchair main body 1, the omni wheel 13 can move in a plurality of different directions, and small discs of the left wheel and the right wheel push out the full force, but the omni wheel also can slide transversely conveniently and greatly. Therefore, the safety and stability of the wheelchair main body 1 are guaranteed, the traveling performance of the wheelchair main body 1 is improved, and convenience and flexibility are achieved.

The driving wheel 12 and the omnidirectional wheel 13 are hinged with the frame 11 through wheel arms, one end of each wheel arm is hinged on the frame 11, and the other end of each wheel arm is hinged on the driving wheel 12 or the omnidirectional wheel 13; and articulated between wheel arm and frame 11 have damping spring, damping spring's one end and the middle part of wheel arm are articulated, the other end and frame 11 are articulated, here, wheel arm and damping spring articulate respectively in the different positions of frame 11 to make wheel arm, damping spring and frame 11 form the triangular supports, be favorable to promoting the connection stability of drive wheel 12 and omniwheel 13, promote the shock attenuation effect.

In some preferred schemes, a battery assembly 9 is arranged in the crawler frame 7, and the crawler frame 7 can fix and protect the battery assembly 9; moreover, the first drive, the second drive 34, the third drive 35, the lifting drive 8, the front drive, the rear drive and the crawler drive 64 are all electrically connected with the battery assembly 9, and power is supplied to the drives through the battery assembly 9, so that long-distance traveling is facilitated. Here, the battery assembly 9 may be provided with a rechargeable battery.

Specifically, two armrests 42 are provided on the backrest 4 and are respectively located on the left and right sides of the seat 3, so that the patient can conveniently place the elbow, which is beneficial for standing and sitting. Moreover, the armrest 42 is provided with the control handle 43 and the control screen 44, the control handle 43 and the control screen 44 are in communication connection with the first drive, the second drive 34, the third drive 35, the lifting drive 8, the front drive, the rear drive and the track drive 64, so that the driving states of the first drive, the second drive 34 and the third drive 35 can be controlled through manual adjustment of patients, and further the multi-angle adjustment of the seat is realized, and the seat is flexible and convenient, and simple and clear, so that the position, the angle and the shape of the three-section type track 6 can be adjusted, and the driving states of the lifting drive 8, the front drive, the rear drive and the track drive 64 can be controlled through manual adjustment of patients, and further the position, the angle and the shape of the three-section type track 6 can be adjusted, thereby being beneficial to realizing up-and-down operation according to different steps, and being flexible and convenient, and simple and clear.

It should be noted that the terms "first," "second," "third," and the like, as used herein, are not intended to limit the specific order, but merely to distinguish one element from another or function. The stated horizontal, vertical, up, down, left and right are the same when the multifunctional intelligent wheelchair is in natural state.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments. The multiple schemes provided by the application comprise basic schemes of the schemes, are independent of each other and are not restricted to each other, but can be combined with each other under the condition of no conflict, so that multiple effects are achieved together.

While embodiments of the present application have been shown and described above, it is to be understood that the above embodiments are exemplary and not to be construed as limiting the present application, and that changes, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims (10)

1. A multifunctional intelligent wheelchair is characterized by comprising a wheelchair main body (1), a pedal plate (2) arranged at the front side of the wheelchair main body (1), a seat (3) arranged above the wheelchair main body (1), a backrest (4) arranged at the rear side of the seat (3), a track main frame (7) connected below the wheelchair main body (1) in a lifting way, a lifting drive (8) connected between the wheelchair main body (1) and the track main frame (7) and used for driving the track main frame (7) to lift, and three-section type tracks (6) symmetrically arranged at the left side and the right side of the track main frame (7), when the lifting drive (8) drives the track main frame (7) to move to the first state, the three-section type crawler belt (6) is lower than the wheelchair main body (1) and can drive the wheelchair main body (1) to move; the ends of the pedal (2) and the seat (3) are hinged to the front side of the wheelchair main body (1) through a first rotating shaft, and the backrest (4) is hinged to one end, far away from the pedal (2), of the seat (3) through a second rotating shaft; a first drive for driving the pedal (2) to rotate along the first rotating shaft is arranged between the wheelchair main body (1) and the pedal (2), a second drive (34) for driving the seat (3) to rotate along the first rotating shaft is arranged between the wheelchair main body (1) and the seat (3), and a third drive (35) for driving the backrest (4) to rotate along the second rotating shaft is arranged between the seat (3) and the backrest (4); the three-section type crawler (6) comprises a middle crawler (62) fixed on the crawler main frame (7), a front crawler (61) rotatably connected to the front end of the middle crawler (62), a front drive used for driving the front crawler (61) to rotate, a rear crawler (63) rotatably connected to the rear end of the middle crawler (62), a rear drive used for driving the rear crawler (63) to rotate, and a crawler drive (64) used for driving the front crawler (61), the rear crawler (63) and the middle crawler (62) to advance.

2. The multifunctional intelligent wheelchair as claimed in claim 1, characterized in that the footboard (2) and the backrest (4) are linked by a linkage mechanism and driven by one of the first drive and the third drive (35).

3. The multifunctional intelligent wheelchair as claimed in claim 2, wherein the linkage mechanism comprises a first link (31) fixed to the footboard (2) at a position close to the first pivot, a second link (32) fixed to the end of the backrest (4), and a transmission lever (33) hinged between the first link (31) and the second link (32), the second pivot being located at the junction of the second link (32) and the backrest (4).

4. The multifunctional intelligent wheelchair as claimed in claim 1, wherein the pedal plate (2) comprises a pedal main body (21) and a pedal bracket (22) hinged to the seat (3), and a knee baffle (5) is arranged on the front side of the pedal bracket (22) and detachably connected to the pedal bracket (22) through a baffle buckle.

5. The multifunctional intelligent wheelchair as claimed in claim 1, wherein the wheelchair body (1) comprises a frame (11) and two wheel assemblies arranged on the left and right sides of the frame (11), and the track main frame (7) is hinged to the rear side of the frame (11) through a lifting rotating shaft and is positioned between the two wheel assemblies.

6. The multifunctional intelligent wheelchair as claimed in claim 5, characterized in that the lifting drive (8) is arranged as a linear drive, and both ends of the lifting drive (8) are respectively hinged on the frame (11) and the track main frame (7).

7. The multifunctional intelligent wheelchair as claimed in claim 5, wherein the wheel assembly comprises a driving wheel (12) located at the front part of the frame (11), an omnidirectional wheel (13) located at the rear part of the frame (11), and a wheel drive (14) in transmission connection with the driving wheel (12).

8. Multifunctional intelligent wheelchair in accordance with claim 7, characterized in that the driving wheel (12) and the omni wheel (13) are both articulated with the frame (11) by means of wheel arms, between which and the frame (11) there are articulated shock absorbing springs, and the wheel arms, the shock absorbing springs and the frame (11) form a triangular support.

9. The multifunctional intelligent wheelchair as claimed in claim 1, wherein a battery assembly (9) is arranged in the track main frame (7), and the first drive, the second drive (34), the third drive (35), the lifting drive (8), the front drive, the rear drive and the track drive (64) are all electrically connected with the battery assembly (9).

10. The multifunctional intelligent wheelchair as claimed in claim 1, wherein armrests (42) are arranged on the backrest (4) on the left and right sides, a control handle (43) and a control screen (44) are arranged on the armrests (42), and the control handle (43) and the control screen (44) are communicably connected with the first drive, the second drive (34), the third drive (35), the lifting drive (8), the front drive, the rear drive and the crawler drive (64).

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