CN220158580U - A height-adjustable electric wheelchair - Google Patents

Abstract

The utility model discloses an electric wheelchair with adjustable height, and relates to the technical field of electric wheelchairs. According to the utility model, the driving wheel telescopic column and the driven wheel telescopic column are simultaneously started to drive the support to start lifting, patients with different body types are adjusted to the comfortable height of the patients, and then a plurality of telescopic pieces can be started to drive the two armrests to synchronously move upwards according to the use requirements of the patients, so that the two armrests support the arms of the patients; when encountering an uphill, the rotating rod swings upwards, the driving wheel telescopic column is started according to the swinging angle of the rotating rod at the moment, so that the rear side of the support is raised, the support inclined due to the uphill is reset, meanwhile, when encountering a downhill, the rotating rod swings downwards, the driven wheel telescopic column is started according to the swinging angle of the rotating rod, the front side of the support is raised, the support inclined due to the downhill is reset, and the wheelchair is prevented from being fallen down due to the lack of control over the balance of a patient with inconvenient legs and feet when the support is inclined on the slope.

Description

A height-adjustable electric wheelchair

Technical field

The utility model belongs to the technical field of electric wheelchairs, and specifically relates to a height-adjustable electric wheelchair.

Background technique

Traditional electric wheelchairs are modified and upgraded based on manual wheelchairs by superimposing power drive devices, controllers, batteries and other components. Manually operating the controller can drive the wheelchair to complete various functional operations such as forward, backward, and steering. It provides convenient and fast mobility for the elderly and disabled people.

However, in actual use, the electric wheelchair will cause the wheelchair to tilt when traveling on a slope. At this time, due to the inconvenience of the elderly and disabled legs and lack of balance control, the user may tip over. At the same time, due to the use of The patient's body shape is inconsistent, and the height of the wheelchair and the height requirements of the guardrails on both sides are inconsistent.

No effective solutions have yet been proposed for the problems in related technologies.

Utility model content

In view of the problems in the related technologies, the present utility model proposes a height-adjustable electric wheelchair to overcome the above technical problems existing in the existing related technologies.

In order to solve the above technical problems, the present utility model is realized through the following technical solutions:

The utility model is a height-adjustable electric wheelchair, which includes a bracket, a protective component, a driving component and a balancing component. The protective component is arranged on both sides of the bracket, and the driving component is arranged at the four corners of the bottom of the bracket. The balance component is arranged between two supports, the drive component can drive the bracket, the protection component and the balance component to move, and the rotation of the rotation rod can cause the drive component to tilt.

Further, the bracket includes a seat cushion and a backrest, and the backrest is disposed behind the seat cushion.

Further, the protection assembly includes guardrails, telescopic parts and handrails. Two guardrails are respectively provided on both sides of the seat cushion. Four telescopic parts are respectively provided on the tops of the two guardrails, two on each side. One of the handrails is respectively provided above the telescopic parts.

Further, the driving assembly further includes a driving wheel telescopic column, a driven wheel telescopic column, a driving wheel and a driven wheel. The two driving wheel telescopic columns are arranged on the side of the bottom of the seat cushion close to the backrest. The driven wheel telescopic column is arranged on the side of the bottom of the seat cushion away from the backrest. The two driving wheels are respectively rotatably connected to one end of the two driving wheel telescopic columns away from the seat cushion. The two driven wheels They are respectively provided at one end of the two driven wheel telescopic columns away from the seat cushion. The two support members are respectively provided between the two driving wheel telescopic columns and the two driven wheel telescopic columns. The two supports pieces are separated from each other.

Further, the balance assembly further includes a pulley, a connecting piece and a supporting column. The two supporting columns are respectively fixedly connected to the sides of the two supporting members that are close to each other. The connecting piece is arranged on the two supporting members. Between the columns, the rotating rod is rotationally connected to the connecting piece, and the pulley is provided at an end of the rotating rod away from the connecting piece.

The utility model has the following beneficial effects:

By activating the driving wheel telescopic column and the driven wheel telescopic column at the same time, the bracket starts to rise and fall, and is adjusted to the patient's comfortable height according to patients of different sizes. Afterwards, according to the patient's needs, several telescopic parts can be activated to drive the two armrests to move upward synchronously, so that the two handrails can be moved upward simultaneously. The armrest supports the patient's arm; when encountering an uphill slope, the rotating rod swings upward. At this time, the driving wheel telescopic column is activated according to the swing angle of the rotating rod, so that the rear side of the bracket is raised, so that the bracket that is tilted due to the uphill slope is re-opened. At the same time, when encountering a downhill slope, the rotating rod swings downward. At this time, the driven wheel telescopic column is activated according to the swing angle of the rotating rod, so that the front side of the bracket is raised and the bracket that is tilted due to encountering a downhill slope is returned to the normal position. This prevents patients with inconvenient legs and feet from falling off the wheelchair due to lack of balance control when the bracket is tilted on a slope.

Of course, any product implementing the present invention does not necessarily need to achieve all the above-mentioned advantages at the same time.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model and are not relevant to the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts.

Figure 1 is one of the three-dimensional structural schematic diagrams of the present utility model;

Figure 2 is the second schematic diagram of the three-dimensional structure of the utility model;

Figure 3 is an enlarged schematic diagram of part A of Figure 2 of the present invention;

Figure 4 is the third schematic diagram of the three-dimensional structure of the present utility model.

In the drawings, the parts represented by each number are listed as follows:

1. Bracket; 11. Seat cushion; 12. Backrest; 2. Protection components; 21. Guardrail; 22. Telescopic parts; 23. Handrails; 3. Driving components; 31. Driving wheel telescopic column; 32. Driven wheel telescopic column; 33 , support piece; 34. driving wheel; 35. driven wheel; 4. balance component; 41. rotating rod; 42. pulley; 43. connecting piece; 44. support column.

Detailed ways

The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the utility model. Obviously, the described embodiments are only some of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of utility model protection.

In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc. indicate the orientation or positional relationship, and are only for convenience of description. Utility models and simplified descriptions do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as limitations on the utility model.

Please refer to Figures 1 to 4. The utility model is a height-adjustable electric wheelchair, which includes a bracket 1, a protective component 2, a driving component 3 and a balancing component 4. The protective component 2 is arranged on the bracket 1 On both sides, the driving assembly 3 is arranged at the four corners of the bottom of the bracket 1, and the balancing assembly 4 is arranged between the two supports 33. The driving assembly 3 can drive the bracket 1, the protection assembly 2 and the balance As the assembly 4 moves, the rotation of the rotating rod 41 can cause the driving assembly 3 to tilt.

In one embodiment, the bracket 1 includes a seat cushion 11 and a backrest 12 , and the backrest 12 is disposed behind the seat cushion 11 .

In one embodiment, the protective assembly 2 includes guardrails 21, telescopic members 22 and handrails 23. Two guardrails 21 are respectively provided on both sides of the seat cushion 11, and four telescopic members 22 are respectively provided on two sides of the seat cushion 11. On the top of the guardrail 21, one handrail 23 is provided above the two telescopic members 22 on each side.

In one embodiment, the driving assembly 3 also includes a driving wheel telescopic column 31, a driven wheel telescopic column 32, a driving wheel 34 and a driven wheel 35. The two driving wheel telescopic columns 31 are arranged near the bottom of the seat cushion 11. On one side of the backrest 12, two driven wheel telescopic columns 32 are provided on the side of the bottom of the seat cushion 11 away from the backrest 12, and the two driving wheels 34 are respectively rotatably connected to the two driving wheels. The telescopic column 31 is at one end away from the seat cushion 11 , the two driven wheels 35 are respectively provided at the end of the two driven wheel telescopic columns 32 away from the seat cushion 11 , and the two support members 33 are respectively provided at two Between the driving wheel telescopic column 31 and the two driven wheel telescopic columns 32, the two support members 33 are separated from each other.

In one embodiment, the balance assembly 4 further includes a pulley 42, a connecting piece 43 and a support column 44. The two support columns 44 are respectively fixedly connected to the sides of the two support members 33 that are close to each other. The connecting piece 43 is arranged between the two support columns 44. The rotating rod 41 is rotationally connected to the connecting piece 43. The pulley 42 is arranged at an end of the rotating rod 41 away from the connecting piece 43. .

In actual use, firstly, the driving wheel telescopic column 31 and the driven wheel telescopic column 32 are started at the same time to drive the bracket 1 to start lifting, and the bracket 1 can be adjusted to the patient's comfortable height according to patients of different sizes. After that, several telescopic members 22 can be started according to the patient's needs. The two armrests 23 move up synchronously, so that the two armrests 23 support the patient's arms. When the comfort is confirmed, the electric wheelchair starts to drive. When encountering a slope, the front pulley 42 of the wheelchair first contacts the slope, causing the pulley 42 to rise and drive the rotation. The rod 41 swings up or down for a certain distance; when encountering an uphill slope, the rotating rod 41 swings upward. At this time, the driving wheel telescopic column 31 is started according to the swing angle of the rotating rod 41, so that the rear side of the bracket 1 is raised, so that due to encountering The bracket 1 that is tilted uphill returns to the straight position. At the same time, when encountering a downhill slope, the rotating rod 41 swings downward. At this time, the driven wheel telescopic column 32 is activated according to the swing angle of the rotating rod 41, so that the front side of the bracket 1 rises. When the bracket 1 is tilted when encountering a downhill slope, it returns to the straight position, thereby preventing the patient with inconvenient legs and feet from falling out of the wheelchair due to lack of balance control when the bracket 1 is tilted on the slope.

To sum up, with the help of the above technical solution of the present invention, firstly, the driving wheel telescopic column 31 and the driven wheel telescopic column 32 are started at the same time to drive the bracket 1 to start lifting, and then a number of telescopic members 22 can be started according to the patient's needs. The two armrests 23 move up synchronously, so that the two armrests 23 support the patient's arms. When the comfort is confirmed, the electric wheelchair starts to drive. When encountering a slope, the front pulley 42 of the wheelchair first contacts the slope, causing the pulley 42 to rise and drive the rotation. The rod 41 swings up or down for a certain distance; when encountering an uphill slope, the rotating rod 41 swings upward. At this time, the driving wheel telescopic column 31 is started according to the swing angle of the rotating rod 41, so that the rear side of the bracket 1 is raised, so that due to encountering The bracket 1 that is tilted uphill returns to the straight position. At the same time, when encountering a downhill slope, the rotating rod 41 swings downward. At this time, the driven wheel telescopic column 32 is activated according to the swing angle of the rotating rod 41, so that the front side of the bracket 1 rises. When encountering a downhill slope, the tilted bracket 1 returns to the straight position.

Beneficial effects: This kind of height-adjustable electric wheelchair first drives the bracket 1 to start lifting by starting the driving wheel telescopic column 31 and the driven wheel telescopic column 32 at the same time. It can be adjusted to the patient's comfortable height according to patients of different sizes, and then according to the patient's needs. A number of telescopic members 22 can be activated to drive the two armrests 23 to move upward synchronously, so that the two armrests 23 can support the patient's arms; when encountering an uphill slope, the rotating rod 41 swings upward, and at this time, the driving wheel is started according to the swing angle of the rotating rod 41 The telescopic column 31 raises the rear side of the bracket 1, so that the bracket 1 that is tilted due to encountering an uphill slope can return to the straight position. At the same time, when encountering a downhill slope, the rotating rod 41 swings downward. At this time, the swing angle of the rotating rod 41 is determined. Start the driven wheel telescopic column 32 to raise the front side of the support 1 and return the support 1 that is tilted due to encountering a downhill slope to prevent the support 1 from falling due to the patient's lack of balance control when the support 1 is tilted on the slope. Get out of the wheelchair.

In the description of this specification, reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one aspect of the utility model. in an embodiment or example. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiment does not describe all details in detail, nor does it limit the utility model to the specific implementation described. Obviously, many modifications and variations are possible in light of the contents of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that those skilled in the art can better understand and utilize the utility model.

Claims (5)

1. A height-adjustable electric wheelchair, characterized by: comprising a bracket (1), a protective component (2), a driving component (3) and a balancing component (4), the protective component (2) being arranged on the On both sides of the bracket (1), the driving assembly (3) is arranged at the four corners of the bottom of the bracket (1), the balancing assembly (4) is arranged between the two supports (33), and the driving assembly (3) 3) The bracket (1), the protective component (2) and the balancing component (4) can be driven to move, and the rotation of the rotating rod (41) can cause the driving component (3) to tilt. 2. A height-adjustable electric wheelchair according to claim 1, characterized in that: the bracket (1) includes a seat cushion (11) and a backrest (12), and the backrest (12) is arranged on the seat cushion. (11) Rear side. 3. A height-adjustable electric wheelchair according to claim 2, characterized in that: the protective component (2) includes a guardrail (21), a telescopic member (22) and an armrest (23), and the two Guardrails (21) are respectively provided on both sides of the seat cushion (11), four telescopic members (22) are respectively provided on the tops of two of the guardrails (21), and the two telescopic members (22) on each side One of the handrails (23) is respectively provided above. 4. A height-adjustable electric wheelchair according to claim 2, characterized in that: the driving assembly (3) also includes a driving wheel telescopic column (31), a driven wheel telescopic column (32), a driving wheel ( 34) and the driven wheel (35), the two driving wheel telescopic columns (31) are arranged on the side of the bottom of the seat cushion (11) close to the backrest (12), and the two driven wheel telescopic columns (32) ) is arranged on the side of the bottom of the seat cushion (11) away from the backrest (12), and the two driving wheels (34) are respectively rotatably connected to the two driving wheel telescopic columns (31) away from the seat cushion (11). 11), the two driven wheels (35) are respectively arranged at one end of the two driven wheel telescopic columns (32) away from the seat cushion (11), and the two supporting members (33) are respectively arranged at Between the two driving wheel telescopic columns (31) and the two driven wheel telescopic columns (32), the two support members (33) are separated from each other. 5. A height-adjustable electric wheelchair according to claim 4, characterized in that: the balance component (4) also includes a pulley (42), a connecting piece (43) and a support column (44), two The support columns (44) are respectively fixedly connected to the sides of the two support members (33) that are close to each other, and the connecting member (43) is provided between the two support columns (44). The rod (41) is rotationally connected to the connecting piece (43), and the pulley (42) is provided at an end of the rotating rod (41) away from the connecting piece (43).