CN215081048U

CN215081048U - Intelligent wheelchair capable of assisting in standing

Info

Publication number: CN215081048U
Application number: CN202120585628.8U
Authority: CN
Inventors: 王鑫
Original assignee: Guilin University of Electronic Technology
Current assignee: Guilin University of Electronic Technology
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-12-10
Anticipated expiration: 2031-03-23

Abstract

The utility model discloses an intelligent wheelchair that can assist and stand relates to the wheelchair field, the fixed quick-witted case that is provided with above the rear portion of bottom plate, quick-witted incasement fixation sets up driving motor, and driving motor's pivot is protrusion in the both sides of quick-witted case outwards, the fixed drive wheel that is provided with in driving motor's the pivot. The seat is fixedly connected with the bottom plate through the lifting deformation mechanism and comprises a cushion plate, and one end of the cushion plate is hinged with the bottom of the backrest. The lifting deformation mechanism comprises a second connecting rod, the bottom of one side of the cushion plate is hinged to one end of the second connecting rod, the other end of the second connecting rod is hinged to one end of the first connecting rod, and the other end of the first connecting rod is fixedly connected with the rotating part of the connecting rod rotating device. The middle part of the bottom surface of the cushion plate is connected with the bottom plate through a lifting cylinder. The seat cushion plate is fixedly provided with a leg fixing belt, and the backrest is fixedly provided with a waist fixing belt. Can let the user conveniently stand upright and remove, solve the not enough of prior art, the structure is very simple moreover, realizes easily that cost of maintenance is also not high.

Description

Intelligent wheelchair capable of assisting in standing

Technical Field

The utility model relates to a wheelchair field especially relates to an intelligent wheelchair that can assist and stand.

Background

Common wheelchairs in life are not in a lifting adjustment mode, and wheelchair users with inconvenient legs and feet want to be upright and convenient to move like normal people to do housework, such as cooking, dish washing and the like, which is very difficult. In the prior art, as publication (bulletin) numbers: CN101835444B discloses a standable wheelchair having a frame and an upright fixed to a front portion of the frame, to which an upright is connected a seat swingably fixed to the front portion of the frame, the seat being movable by an actuator from a sitting position into an upright position, the standable wheelchair having a backrest with a back cushion hingedly connected to the seat at an angle (α) with respect to the seat and at least one articulated parallelogram mechanism swingably provided on the front portion of the frame below the seat, the inclination angle (γ) of the seat being variable and the angle (α 1) between the backrest and the seat being changed to an angle (α 2) when the inclination angle (γ) of the seat is changed from a horizontal plane (H), the wheelchair, although enabling a human body to stand upright, however, when the wheelchair is used, particularly after standing, the center of gravity of the human body is located at the front of the whole wheelchair, so that the wheelchair is inconvenient to move, and accidents are easily caused due to unstable center of gravity.

Disclosure of Invention

In order to solve the above problem, the utility model discloses a following technical scheme realizes:

an intelligent wheelchair capable of assisting in standing comprises a bottom plate, wherein two sides of the rear part of the bottom plate are respectively provided with a driving wheel, two sides of the front part of the bottom plate are respectively provided with a supporting wheel, a seat is arranged on the bottom plate, a case is fixedly arranged on the rear part of the bottom plate, and a battery, a circuit board and a driving motor are fixedly arranged in the case;

the driving motor is provided with two driving motors, rotating shafts of the two driving motors outwards protrude out of two sides of the case, and the driving wheels are fixedly arranged on the rotating shafts of the driving motors; the two motors are used for controlling, so that the motion control can be flexibly realized, the rotation can be carried out in situ, and the operation is very flexible.

The seat is fixedly connected with the bottom plate through a lifting deformation mechanism; the seat comprises a cushion plate and a backrest, wherein one end of the cushion plate is hinged with the bottom of the backrest; the lifting deformation mechanism comprises a lifting cylinder, a connecting rod rotating device, a first connecting rod and a second connecting rod;

the bottom of one side of the cushion plate is hinged with one end of the second connecting rod, the other end of the second connecting rod is hinged with one end of the first connecting rod, and the other end of the first connecting rod is fixedly connected with the rotating part of the connecting rod rotating device;

the middle part of the bottom surface of the cushion plate is connected with the bottom plate through the lifting cylinder;

the seat cushion plate is fixedly provided with a leg fixing belt for fixing two legs of a user; the backrest is fixedly provided with a waist fixing belt for fixing the waist of a user.

Preferably, two sides of the cushion plate are respectively and fixedly provided with a guard plate for preventing a user from sliding off from the two sides;

a cushion is arranged on the cushion plate;

the leg fixing belts are detachably arranged between the two guard plates.

Preferably, the two sides of the backrest are respectively and fixedly provided with a waist protecting plate, and a buckle is arranged below the waist protecting plate and used for fixedly mounting the waist fixing belt.

Preferably, an operating rod is fixedly arranged on the guard plate and used for controlling the travelling and lifting of the whole wheelchair.

Preferably, the handrail is of a U-shaped structure, two ends of a U-shaped opening of the handrail are hinged to two sides of the case respectively, and an included angle between the handrail and the bottom plate can be adjusted within 0-60 degrees.

Preferably, one side of the middle part of the armrest is provided with a touch screen for facilitating the user to set parameters of the wheelchair and receive and display various information.

Preferably, the lifting cylinder is an electric cylinder. The simplest and cheapest structure is to purchase a worm and gear type linear motor directly, so that the design cost can be saved.

Preferably, the bottom plate is further provided with a non-slip mat. The non-slip mat is made of rubber materials, and anti-slip lines are arranged on the non-slip mat and used for preventing a user from slipping due to insufficient friction force.

Preferably, the connecting rod rotating device is a direct current speed reduction motor, and the direct current speed reduction motor is a vertical shaft output structure. The output rotating shaft of the speed reducing motor with the vertical shaft output structure is vertical to the rotating shaft of the motor, and the speed reducing motor is provided with a speed reducing gear box which can realize great torque transmission. The motors are available in a large number of markets, the products are mature, the motors can be directly purchased and used, and the design cost is reduced.

Preferably, the driving motor is a brushless single motor. The brushless single machine has simple structure and easy control, and is a common electric actuator at present.

The utility model discloses the fixed quick-witted case that is provided with above the rear portion of bottom plate, quick-witted incasement fixation sets up driving motor, and driving motor's pivot is the fixed drive wheel that is provided with in the pivot of driving motor in the both sides of quick-witted case of protrusion outwards. The seat is fixedly connected with the bottom plate through the lifting deformation mechanism and comprises a cushion plate, and one end of the cushion plate is hinged with the bottom of the backrest. The lifting deformation mechanism comprises a second connecting rod, the bottom of one side of the cushion plate is hinged to one end of the second connecting rod, the other end of the second connecting rod is hinged to one end of the first connecting rod, and the other end of the first connecting rod is fixedly connected with the rotating part of the connecting rod rotating device. The middle part of the bottom surface of the cushion plate is connected with the bottom plate through a lifting cylinder. The seat cushion plate is fixedly provided with a leg fixing belt, and the backrest is fixedly provided with a waist fixing belt. When the chair does not need to stand at ordinary times, the lifting cylinder extends out, the connecting rod rotating device rotates anticlockwise to drive the first connecting rod and the second connecting rod to rotate, and the seat cushion plate and the backrest are of an L-shaped chair structure. When the chair needs to be erected, the lifting cylinder retracts, meanwhile, the connecting rod rotating device rotates clockwise, at the moment, under the action of the lifting cylinder, the first connecting rod and the second connecting rod, the seat cushion plate slowly inclines, one end of the seat cushion plate, which is hinged with the backrest, faces upwards, the other end, which is far away from the backrest, faces downwards, the included angle between the seat cushion plate and the backrest is gradually increased, and finally the purpose of enabling a user to be erected is achieved. Because the leg fixing belts are fixedly arranged on the cushion plate and the waist fixing belts are fixedly arranged on the backrest, the user can not fall over due to the upright body. After the upright operation, the gravity center is still positioned in the middle of the bottom plate, so that the driving wheel can be continuously operated to advance without influencing the movement.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the embodiment provided by the present invention;

fig. 2 is a schematic view of another perspective of an embodiment provided by the present invention;

FIG. 3 is a schematic view of an embodiment of the present invention with the handrail and a drive wheel removed;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a schematic view of a variation of FIG. 4;

fig. 6 is an exploded view of an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the embodiments of the present application will be described clearly and completely with reference to fig. 1 to 6 of the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art without any inventive work based on the embodiments in the present application are within the scope of protection of the present application. Thus, the following detailed description of the embodiments of the present application, as presented in the figures, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

As shown in fig. 1 to 6, an intelligent wheelchair capable of assisting standing comprises a bottom plate 1, wherein two sides of the rear portion of the bottom plate 1 are respectively provided with a driving wheel 2, two sides of the front portion of the bottom plate 1 are respectively provided with a supporting wheel 3, the supporting wheels 3 with through grooves are unpowered and can be steered, for example, the supporting wheels can be realized by universal wheels, or independent steering systems can be provided, and the supporting wheels are not limited herein. The seat 4 is arranged on the bottom plate 1, the case 10 is fixedly arranged on the rear part of the bottom plate 1, and the battery, the circuit board and the driving motor are fixedly arranged in the case 10. The case 10 is an arc-shaped protruding structure made of metal material, and is provided with a cavity, and a battery, a circuit board and a driving motor are fixedly arranged in the cavity. Of course, other functional modules, such as a music playing or speaker module, a wireless charging module, etc., may also be provided. For safety, the bottom plate 1 is also provided with a non-slip mat. The non-slip mat is made of rubber materials, and anti-slip lines are arranged on the non-slip mat and used for preventing a user from slipping due to insufficient friction force.

In this embodiment, two driving motors are provided, the rotating shafts of the two driving motors protrude outwards from two sides of the chassis 10, and the driving wheels 2 are fixedly provided on the rotating shafts of the driving motors. The two motors are used for controlling, so that the motion control can be flexibly realized, the rotation can be carried out in situ, and the operation is very flexible. The present embodiment preferably drives the motor as a brushless single motor. The brushless single machine has simple structure and easy control, and is a common electric actuator at present.

The seat 4 is fixedly connected with the bottom plate 1 through a lifting deformation mechanism 7. Specifically, the seat 4 includes a cushion plate 40 and a backrest 41, and one end of the cushion plate 40 is hinged to the bottom of the backrest 41. The lifting deformation mechanism 7 includes a lifting cylinder 70, a link rotating device 71, a first link 72, and a second link 73. The bottom of one side of the cushion plate 40 is hinged with one end of a second connecting rod 73, the other end of the second connecting rod 73 is hinged with one end of a first connecting rod 72, and the other end of the first connecting rod 72 is fixedly connected with the rotating part of the connecting rod rotating device 71. The link rotating device 71 is a dc gear motor, which is a vertical axis output structure. The output rotating shaft of the speed reducing motor with the vertical shaft output structure is vertical to the rotating shaft of the motor, and the speed reducing motor is provided with a speed reducing gear box which can realize great torque transmission. The motors are available in a large number of markets, the products are mature, the motors can be directly purchased and used, and the design cost is reduced. The middle of the bottom surface of the cushion plate 40 is connected to the base plate 1 through a lifting cylinder 70, wherein the lifting cylinder 70 is an electric cylinder. The simplest and cheapest structure is to purchase a worm and gear type linear motor directly, so that the design cost can be saved. The cushion plate 40 is fixedly provided with a leg fixing belt for fixing two legs of a user; a waist fixing belt is fixedly arranged on the backrest 41 for fixing the waist of the user. When the chair does not need to stand at ordinary times, the lifting cylinder 70 extends out, the connecting rod rotating device 71 rotates anticlockwise to drive the first connecting rod 72 and the second connecting rod 73 to rotate, and the cushion plate 40 and the backrest 41 are of an L-shaped chair structure. When the user needs to stand, the lifting cylinder 70 retracts, meanwhile, the connecting rod rotating device 71 rotates clockwise, at this time, under the action of the lifting cylinder 70, the first connecting rod 72 and the second connecting rod 73, the cushion plate 40 tilts slowly, one end of the cushion plate, which is hinged with the backrest 41, faces upwards, the other end, which is far away from the backrest, faces downwards, the included angle between the cushion plate 40 and the backrest 41 becomes larger gradually, and finally, the purpose of standing the user is achieved. Because the leg fixing straps are fixedly arranged on the cushion plate 40 and the waist fixing straps are fixedly arranged on the backrest 41, the user can not be inclined due to the upright body. After the upright operation, the gravity center is still positioned in the middle of the bottom plate 1, so that the driving wheel 2 can be continuously operated to advance without influencing the movement, the structure can enable a user to conveniently upright and move, the defects of the prior art are overcome, the structure is simple, the implementation is easy, and the maintenance cost is not high.

In another embodiment, the link rotating means 71, the first link 72 and the second link 73 are provided in two sets, respectively, in parallel with each other under the cushion plate 40 for safety. In addition, both sides of cushion plate 40 are fixed respectively and are provided with backplate 401 for prevent that the user from following both sides landing, and the higher authority of cushion plate 40 is provided with cushion 400, improves the comfort level, and in addition still can the dismantled and assembled shank fixed band that is provided with between two backplate 401. Of course, the leg fixing straps can be in various forms, and the leg fixing straps can be arranged on the cushion plate 40 and the cushion 400 in a penetrating manner through holes, or can be wound on the whole cushion plate 40 by adopting similar straps, so that the leg fixing straps can play a role in fixing legs.

Similarly, a waist protecting plate 410 is fixedly arranged on each of two sides of the backrest 41, and a buckle 411 is arranged below the waist protecting plate 410 for fixedly mounting a waist fixing strap. For the convenience of operation, an operating rod 5 is fixedly arranged on the guard plate 401 and is used for controlling the travelling and lifting of the whole wheelchair.

In one embodiment, the handrail 6 is further arranged, the handrail 6 is of a U-shaped structure, two ends of a U-shaped opening of the handrail 6 are respectively hinged to two sides of the case 10, and an included angle between the handrail 6 and the bottom plate 1 can be adjusted between 0-60 degrees. One side of the middle part of the armrest 6 is provided with a touch screen 8 which is used for facilitating the user to set parameters of the wheelchair and receive and display various information. The touch screen 8 can realize interaction with people, can provide moving pictures such as movies for people, and even can be provided with a camera, so that remote video call and the like are realized.

Claims

1. The utility model provides a can assist intelligent wheelchair of standing, includes bottom plate (1), the rear portion both sides of bottom plate (1) are provided with a drive wheel (2) respectively, the anterior both sides of bottom plate (1) are provided with a supporting wheel (3) respectively, be provided with seat (4), its characterized in that above bottom plate (1):

a chassis (10) is fixedly arranged on the rear part of the bottom plate (1), and a battery, a circuit board and a driving motor are fixedly arranged in the chassis (10);

the rotating shafts of the two driving motors protrude outwards from the two sides of the case (10), and the driving wheels (2) are fixedly arranged on the rotating shafts of the driving motors;

the seat (4) is fixedly connected with the bottom plate (1) through a lifting deformation mechanism (7); the seat (4) comprises a cushion plate (40) and a backrest (41), wherein one end of the cushion plate (40) is hinged with the bottom of the backrest (41); the lifting deformation mechanism (7) comprises a lifting cylinder (70), a connecting rod rotating device (71), a first connecting rod (72) and a second connecting rod (73);

the bottom of one side of the cushion plate (40) is hinged with one end of the second connecting rod (73), the other end of the second connecting rod (73) is hinged with one end of the first connecting rod (72), and the other end of the first connecting rod (72) is fixedly connected with the rotating part of the connecting rod rotating device (71);

the middle part of the bottom surface of the cushion plate (40) is connected with the bottom plate (1) through the lifting cylinder (70);

the cushion plate (40) is fixedly provided with a leg fixing belt for fixing two legs of a user; the backrest (41) is fixedly provided with a waist fixing belt for fixing the waist of a user.

2. The intelligent wheelchair of claim 1 wherein:

two sides of the cushion plate (40) are respectively and fixedly provided with a guard plate (401) for preventing a user from sliding off from the two sides;

a cushion (400) is arranged on the cushion plate (40);

the leg fixing belts are detachably arranged between the two guard plates (401).

3. The intelligent wheelchair of claim 1 wherein:

the waist protecting plate is characterized in that waist protecting plates (410) are fixedly arranged on two sides of the backrest (41) respectively, and buckles (411) are arranged below the waist protecting plates (410) and used for fixedly mounting the waist fixing bands.

4. The intelligent wheelchair of claim 2 wherein:

an operating rod (5) is fixedly arranged on the guard plate (401) and is used for controlling the whole wheelchair to move forward and lift.

5. The intelligent wheelchair of claim 1 wherein:

the novel computer case is characterized in that handrails (6) are further arranged, each handrail (6) is of a U-shaped structure, two ends of each U-shaped opening are hinged to two sides of the corresponding case (10), and included angles between the handrails (6) and the corresponding bottom plate (1) can be adjusted within 0-60 degrees.

6. The intelligent wheelchair of claim 5 wherein:

a touch screen (8) is arranged on one side of the middle of the armrest (6) and is used for facilitating the user to set parameters of the wheelchair and receive and display various information.

7. The intelligent wheelchair of claim 1 wherein:

the lifting cylinder (70) is an electric cylinder.

8. The intelligent wheelchair of claim 1 wherein:

the bottom plate (1) is also provided with an anti-skid pad.

9. The intelligent wheelchair of claim 1 wherein:

the connecting rod rotating device (71) is a direct current speed reducing motor which is a vertical shaft output structure.

10. The intelligent wheelchair of claim 1 wherein:

the driving motor is a brushless single machine.