CN217611773U

CN217611773U - Mobile power-assisted wheelchair

Info

Publication number: CN217611773U
Application number: CN202221750045.7U
Authority: CN
Inventors: 林志恒; 邵加丽; 谢兵
Original assignee: Nanjing Institute of Mechatronic Technology
Current assignee: Nanjing Institute of Mechatronic Technology
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-10-21
Anticipated expiration: 2032-07-08

Abstract

The utility model discloses a mobile power-assisted wheelchair, which comprises a frame, a pedal and a backrest, wherein the lower part of the frame is provided with a chassis, the bottom of the chassis is provided with a mobile wheel set, the mobile wheel set comprises a driving wheel set positioned at the rear part of the frame and a steering wheel set positioned at the front part of the frame, two driving wheels of the driving wheel set are connected through a differential mechanism, and the chassis is provided with a driving mechanism for driving the driving wheel set to rotate; the pedal is arranged on the front side of the frame, the upper part of the pedal is rotationally connected with the frame, and the frame is provided with a first adjusting mechanism for adjusting the inclination angle of the pedal; the backrest is arranged at the rear side of the frame, the lower end of the backrest is rotationally connected with the frame, and a second adjusting mechanism for adjusting the angle of the backrest is arranged on the frame; the utility model discloses can adjust the angle and the position of back and footboard in a flexible way, can adjust to suitable position, when satisfying the removal walking purpose, can adjust the position of sitting.

Description

Mobile power-assisted wheelchair

Technical Field

The utility model relates to a helping hand equipment technical field, concretely relates to remove helping hand wheelchair.

Background

The wheelchair can make things convenient for legs and feet to remove inconvenient old man, trips such as patient, current wheelchair is mostly artifical the promotion, need the special messenger to assist and promote, also have the electronic wheelchair of part, can be by the personnel of sitting on the wheelchair from the removal of main control wheelchair, but current wheelchair is mostly fixed back and footboard structure, can't adjust in a flexible way, lead to personnel to sit can arouse fatigue for a long time, and be unfavorable for the recovery of health, especially have special requirements's situation to patient's health, ordinary wheelchair can't satisfy the user demand.

SUMMERY OF THE UTILITY MODEL

The technical purpose is as follows: the not enough of user demand can't be satisfied in the regulation of being not convenient for to current wheelchair, the utility model discloses a can adjust the removal helping hand wheelchair of angle and the position of back and footboard in a flexible way.

The technical scheme is as follows: in order to achieve the technical purpose, the utility model adopts the following technical scheme:

a movable power-assisted wheelchair comprises a frame, a pedal and a backrest, wherein a chassis is arranged at the lower part of the frame, a movable wheel set is arranged at the bottom of the chassis and comprises a driving wheel set positioned at the rear part of the frame and a steering wheel set positioned at the front part of the frame, two driving wheels of the driving wheel set are connected through a differential mechanism, a driving mechanism for driving the driving wheel set to rotate is arranged on the chassis, the driving mechanism is electrically connected with a controller arranged on the frame, and a driving end of the driving mechanism is connected with a rotating shaft of one of the driving wheels in a matched manner through the gear set; the pedal is arranged on the front side of the frame, the upper part of the pedal is rotationally connected with the frame, and the frame is provided with a first adjusting mechanism for adjusting the inclination angle of the pedal; the backrest is arranged at the rear side of the frame, the lower end of the backrest is rotatably connected with the frame, and the frame is provided with a second adjusting mechanism for adjusting the angle of the backrest.

Preferably, the utility model discloses a second adjustment mechanism includes the second electricity jar, and the drive end of second electricity jar is articulated with the second regulation pole of fixing at back end, and the rear end of second electricity jar is articulated with the frame, and the second electricity jar promotes the second regulation pole and drives the back and rotate for the frame, carries out angular adjustment.

Preferably, the hinged end of the second adjusting rod of the utility model is inclined downwards, and the included angle between the second adjusting rod and the backrest is less than 90 degrees

Preferably, the utility model discloses a first adjustment mechanism is including setting up the first electric jar in the frame, and first electric jar one end is articulated with the frame, and the other end is articulated with the footboard.

Preferably, the utility model discloses a footboard includes curb plate and bottom plate, and the curb plate is articulated with the frame, and the back of curb plate is articulated with the drive end of first electric jar, and the bottom plate is articulated each other with the curb plate lower extreme, and the rear end middle part of bottom plate articulates there is first regulation pole, first regulation pole and bottom plate parallel arrangement, and the other end of first regulation pole articulates on the frame, and curb plate, bottom plate, first regulation pole and frame form four-bar linkage structure jointly.

Preferably, the utility model discloses a be equipped with the handrail on the back, first electric jar, second electric jar all are connected with the controller electricity, and the controller setting is in the handrail to be equipped with the control panel who is used for being connected the transmission control signal with the controller electricity on the handrail.

Has the advantages that: the utility model provides a remove helping hand wheelchair has following beneficial effect:

1. the utility model discloses an angle of second adjustment mechanism adjustment back in the frame, first adjustment mechanism carry out the adjustment of footboard angle, to the patient that has the demand to the position of sitting state, can adjust to suitable position, when satisfying the trip purpose, can not exert an influence to the recovery of health.

2. The utility model discloses second adjustment mechanism promotes the second through the second electric jar and adjusts the pole and drive the back rotation, and the second is adjusted the pole and is less than 90 degrees with the contained angle of back, can reduce the inclination of second electric jar, makes it arrange the frame in, reduces adjustment mechanism's occupation space.

3. The utility model discloses a footboard falls into curb plate and bottom plate two parts to form four-bar linkage structure jointly with first regulation pole and frame, when first electric jar promoted the curb plate and removes, can drive linkage such as bottom plate, first regulation pole, realize the inclination of curb plate, and the angular adjustment of bottom plate.

4. The utility model discloses a first adjustment mechanism, second adjustment mechanism all are connected with the controller electricity, when the control command that control panel issued is received to the controller, can control automatically, and the personnel of being convenient for when sitting on the wheelchair adjust and control.

Drawings

In order to 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.

Figure 1 is a side view of the present invention,

fig. 2 is a view along direction a in fig. 1.

Wherein the content of the first and second substances, 1-vehicle frame, 2-pedal, 3-backrest, 4-chassis, 5-driving wheel set, 6-steering wheel set, 7-differential, 8-driving mechanism, 9-second electric cylinder, 10-second adjusting rod, 11-first electric cylinder, 12-side plate, 13-bottom plate, 14-first adjusting rod and 15-handrail.

Detailed Description

The present invention will be more clearly and completely described below by way of a preferred embodiment in conjunction with the accompanying drawings, which are not intended to limit the scope of the invention as described herein.

As shown in fig. 1 and 2, for the utility model discloses a mobile power-assisted wheelchair, which comprises a frame 1, pedals 2 and a backrest 3, wherein a chassis 4 is arranged at the lower part of the frame 1, a mobile wheel set is arranged at the bottom of the chassis 4, the mobile wheel set comprises a driving wheel set 5 at the rear part of the frame and a steering wheel set 6 at the front part of the frame, the steering wheel set is driven by an independent motor, and when needing to steer, the motor drives the corresponding steering wheel set to rotate for a certain angle; the two driving wheels of the driving wheel set 5 are connected through a differential mechanism 7, a driving mechanism 8 for driving the driving wheel set to rotate is arranged on the chassis 4, the driving mechanism 8 is electrically connected with a controller arranged on the frame, and the driving end of the driving mechanism 8 is connected with a rotating shaft of one of the driving wheels in a matched mode through a gear set; the pedal 2 is arranged on the front side of the frame 1, the upper part of the pedal 2 is rotationally connected with the frame 1, and the frame 1 is provided with a first adjusting mechanism for adjusting the inclination angle of the pedal; the backrest 3 is arranged at the rear side of the frame 1, the lower end of the backrest 3 is rotatably connected with the frame 1, and the frame 1 is provided with a second adjusting mechanism for adjusting the angle of the backrest.

Through first adjustment mechanism, second adjustment mechanism carry out the position control of back and footboard, make it suit with the user demand, make the personnel of taking be in the most suitable health gesture, avoid resumeing to produce adverse effect to the health, for the convenience of control, the utility model discloses a be equipped with handrail 15 on the back 3, first electric jar 11, second electric jar 9 all are connected with the controller electricity, and the controller setting is in handrail 15 to be equipped with the control panel who is used for being connected transmission control signal with the controller electricity on handrail 15, personnel on the wheelchair issue the instruction through control panel and carry out the back and the footboard position control of wheelchair, and control the action of wheelchair.

In a specific embodiment, the utility model discloses a second adjustment mechanism includes second electric jar 9, the drive end of second electric jar 9 is articulated with the second regulation pole 10 of fixing at back 3 rear end, the rear end of second electric jar 9 is articulated with frame 1, second electric jar 9 promotes second regulation pole 10 and drives back 3 and rotate for the frame, carry out angle adjustment, the hinged end downward sloping of second regulation pole 10, the contained angle of second regulation pole 10 and back between 3 is less than 90, use the acute angle to be suitable, second electric jar 9 can slope the setting in frame 1 like this, reduce the volume that the structure occupy, make the wheelchair smaller and more exquisite.

The utility model discloses a first adjustment mechanism is including setting up first electric jar 11 in

frame

1, 11 one end of first electric jar are articulated with frame 1, the other end is articulated with footboard 2, footboard 2 includes curb plate 12 and bottom plate 13, curb plate 12 is articulated with frame 1, the back of curb plate 12 is articulated with the drive end of first electric jar 11, bottom plate 13 is articulated each other with 12 lower extremes of curb plate, the rear end middle part of bottom plate 13 articulates there is first regulation pole 14, first regulation pole 14 and 13 parallel arrangement of bottom plate, the other end of first regulation pole 14 articulates on frame 1, curb plate 12, bottom plate 13, first regulation pole 14 and frame 1 form four-bar linkage structure jointly, when one of them connecting rod removed, other connecting rods can synchronous motion, it is right as the example to use the inclination of increase curb plate 12 the utility model discloses first adjustment mechanism's working process explains: the first electric cylinder 11 is pushed forward, the side plate 12 rotates anticlockwise according to the direction in fig. 1 under the pushing force of the first electric cylinder, the bottom plate 13 positioned below the side plate 12 moves along with the rotation of the side plate 12, the lower end of the first adjusting rod 14 rotates along the hinge center of the upper end of the first adjusting rod and the frame 1 under the pulling force of the bottom plate 13, and the included angle between the bottom plate 13 and the first adjusting rod 14 is correspondingly increased to accord with the natural unfolding posture of a human body; correspondingly when the angle of the side plate 12 needs to be reduced, the first electric cylinder 11 is pulled back, the side plate 12 rotates anticlockwise to drive the bottom plate 13 below the side plate to move along with the side plate, the lower end of the first adjusting rod 14 rotates in the same direction with the side plate 12 under the action of the bottom plate 13, and in the process, the included angle between the first adjusting rod 14 and the bottom plate 13 is reduced to meet the posture of legs and feet when a human body sits on the seat.

The utility model provides a remove helping hand wheelchair when using, by the control panel input control instruction on personnel's through handrail 15, control panel can adopt prior art's touch-sensitive screen etc. to realize, gives the controller with operating signal transmission, by controller received control signal after, the execution operating instruction such as motor, the electric jar that control corresponds.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims

1. A mobile power-assisted wheelchair is characterized by comprising a frame (1), pedals (2) and a backrest (3), wherein a chassis (4) is arranged at the lower part of the frame (1), a mobile wheel set is arranged at the bottom of the chassis (4), the mobile wheel set comprises a driving wheel set (5) positioned at the rear part of the frame and a steering wheel set (6) positioned at the front part of the frame, two driving wheels of the driving wheel set (5) are connected through a differential (7), a driving mechanism (8) used for driving the driving wheel set to rotate is arranged on the chassis (4), the driving mechanism (8) is electrically connected with a controller arranged on the frame, and the driving end of the driving mechanism (8) is connected with a rotating shaft of one driving wheel in a matched mode through the gear set; the pedal (2) is arranged on the front side of the frame (1), the upper part of the pedal (2) is rotatably connected with the frame (1), and the frame (1) is provided with a first adjusting mechanism for adjusting the inclination angle of the pedal; the backrest (3) is arranged at the rear side of the frame (1), the lower end of the backrest (3) is rotatably connected with the frame (1), and the frame (1) is provided with a second adjusting mechanism for adjusting the angle of the backrest.

2. A mobile power-assisted wheelchair according to claim 1, wherein the second adjusting mechanism comprises a second electric cylinder (9), the driving end of the second electric cylinder (9) is hinged with a second adjusting rod (10) fixed at the rear end of the backrest (3), the rear end of the second electric cylinder (9) is hinged with the frame (1), and the second electric cylinder (9) pushes the second adjusting rod (10) to drive the backrest (3) to rotate relative to the frame for angle adjustment.

3. A mobile assisted wheelchair according to claim 2, wherein the hinged end of the second adjustment lever (10) is inclined downwardly and the angle between the second adjustment lever (10) and the backrest (3) is less than 90 °.

4. A mobile assisted wheelchair according to claim 2, wherein the first adjustment mechanism comprises a first electric cylinder (11) arranged in the frame (1), one end of the first electric cylinder (11) being hinged to the frame (1) and the other end being hinged to the pedal (2).

5. The movement-assisted wheelchair as claimed in claim 4, characterized in that the pedal (2) comprises a side plate (12) and a bottom plate (13), the side plate (12) is hinged to the frame (1), the back of the side plate (12) is hinged to the driving end of the first electric cylinder (11), the bottom plate (13) is hinged to the lower end of the side plate (12), the middle of the rear end of the bottom plate (13) is hinged to a first adjusting rod (14), the first adjusting rod (14) is arranged in parallel with the bottom plate (13), the other end of the first adjusting rod (14) is hinged to the frame (1), and the side plate (12), the bottom plate (13), the first adjusting rod (14) and the frame (1) form a four-bar linkage structure together.

6. A movement-assisted wheelchair according to claim 4, characterized in that the backrest (3) is provided with an armrest (15), the first electric cylinder (11) and the second electric cylinder (9) are electrically connected with a controller, the controller is arranged in the armrest (15), and the armrest (15) is provided with a control panel for electrically connecting with the controller and transmitting control signals.