CN217162485U

CN217162485U - Wheelchair driving device

Info

Publication number: CN217162485U
Application number: CN202122808041.1U
Authority: CN
Inventors: 王其健
Original assignee: Fengzhuo Automation Technology Co Ltd
Current assignee: Fengzhuo Automation Technology Co Ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-08-12
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses a wheelchair drive arrangement, it includes: the wheelchair comprises a driving frame, a first driving wheel, a second driving wheel, a first control handle and a second control handle, wherein the driving frame is arranged at the lower end of the wheelchair in a detachable mode, the first driving wheel and the second driving wheel are arranged on the driving frame and used for driving the wheelchair to move forwards and backwards, the first control handle is arranged on an armrest on one side of the wheelchair and used for controlling the first driving wheel and the second driving wheel to work, the second control handle is arranged on a backrest push rod of the wheelchair and used for controlling the first driving wheel and the second driving wheel to work, and the first control handle and the second control handle can independently control the first driving wheel and the second driving wheel to work. The utility model discloses in through adopting on the handrail of wheelchair and on the back push rod set up independent control's first brake valve lever and second brake valve lever respectively, make wheelchair user and nursing staff homoenergetic independent control first drive wheel and second drive wheel drive wheelchair remove, promote convenience and the security that the wheelchair used.

Description

Wheelchair driving device

The technical field is as follows:

the utility model relates to the field of wheelchair power devices, in particular to a wheelchair driving device.

The background art comprises the following steps:

the wheelchair is an important tool for rehabilitation, not only is the walking tool for the disabled with limbs injured, but also is more important for the disabled to do physical exercise and participate in social activities by means of the wheelchair. The wheelchairs are mainly divided into manual wheelchairs and electric wheelchairs, the manual wheelchairs are low in price but do not have power driving devices, and the wheelchairs need to be pushed by hand in the using process, so that labor is wasted. The electric wheelchair is additionally provided with a power driving device on the basis of a manual wheelchair, but the driving device is fixed with the wheelchair into a whole, so that the electric wheelchair cannot be conveniently and quickly disassembled and assembled, cannot be suitable for wheelchairs of other models, has poor universality and is expensive, and therefore, the driving device which is good in universality, can be suitable for various wheelchairs and is convenient to disassemble and assemble is needed to be invented.

In view of the above, the present inventors propose the following.

The utility model has the following contents:

an object of the utility model is to overcome the not enough of prior art, provide a wheelchair drive arrangement.

In order to solve the technical problem, the utility model adopts the following technical scheme: a wheelchair drive apparatus comprising: the wheelchair comprises a driving frame arranged at the lower end of a wheelchair in a detachable mode, a first driving wheel and a second driving wheel which are arranged on the driving frame and used for driving the wheelchair to move forwards and backwards, a first control handle arranged on an armrest on one side of the wheelchair and used for controlling the first driving wheel and the second driving wheel to work, and a second control handle arranged on a backrest push rod of the wheelchair and used for controlling the first driving wheel and the second driving wheel to work, wherein the first control handle and the second control handle can independently control the first driving wheel and the second driving wheel to work.

Furthermore, in the above technical solution, a connecting mechanism fixedly connected with the wheelchair in a detachable manner is disposed at a front end of the driving frame, a first adjusting frame and a second adjusting frame for adjusting heights of the first driving wheel and the second driving wheel are disposed on two sides of a rear end of the driving frame, respectively, and the first driving wheel and the second driving wheel are mounted at ends of the first adjusting frame and the second adjusting frame, respectively.

Further, in the above technical solution, the first adjusting bracket includes a swing arm having one end hinged to the driving bracket, a rotating shaft hinged to the driving bracket and located above the swing arm, a rotating block hinged to the middle of the swing arm, an adjusting lever passing through the rotating block and the rotating shaft, and a damping spring sleeved on the middle of the adjusting lever and located between the rotating block and the rotating shaft, and the first driving wheel is mounted at the other end of the swing arm; the second adjusting frame is the same as the first adjusting frame in structure.

Further, in the above technical solution, a first gasket and a second gasket are respectively disposed at two ends of the damping spring, and a first nut and a second nut are mounted on the adjusting rod, wherein the first nut is located at an end of the adjusting rod, the second nut is located between the damping spring and the rotating shaft, and a shaft sleeve is further sleeved on the damping spring; the two sides of the rotating block are arranged on the swing arm through a first connecting shaft and a second connecting shaft.

Furthermore, in the above technical scheme, the connecting mechanism includes a first telescopic claw and a second telescopic claw which are installed on two sides of the front end of the driving frame and can be stretched towards two sides, a claw adjusting handle which is installed on the front end of the driving frame in a rotatable manner and is used for adjusting the stretching lengths of the first telescopic claw and the second telescopic claw, and a locking shaft handle which is arranged on the claw adjusting handle and is used for tightly holding and limiting the rotation of the claw adjusting handle, wherein a first clamping jaw for grasping the wheelchair is arranged at one end of the first telescopic claw, and a second clamping jaw for grasping the wheelchair is arranged at one end of the second telescopic claw.

Furthermore, in the above technical solution, the other end of the first telescopic clamping jaw is provided with a first rack, the other end of the second telescopic clamping jaw is provided with a second rack opposite to the first rack, and a gear engaged with the first rack and the second rack is arranged at the end of the rotating rod at the lower end of the clamping jaw adjusting handle.

Further, in the above technical solution, a drive-by-wire box for connecting with the first driving wheel and the second driving wheel is provided on the driving frame; two parallel front wheels are arranged below the front end of the wheelchair, and two parallel rear wheels are arranged below the rear end of the wheelchair.

After the technical scheme is adopted, compared with the prior art, the utility model has following beneficial effect: in the utility model, the first control handle and the second control handle which are independently controlled are respectively arranged on the handrail and the backrest push rod of the wheelchair, so that a wheelchair user and a nursing staff can independently control the first driving wheel and the second driving wheel to drive the wheelchair to move, and the convenience and the safety of the wheelchair are improved; secondly, install the drive frame on the wheelchair with dismantled and assembled mode for drive arrangement can change, and can install on different wheelchairs, promote drive arrangement's commonality, thereby increase drive arrangement's rate of utilization, and charge and maintain drive arrangement fast.

Description of the drawings:

FIG. 1 is a diagram illustrating the usage of the present invention;

fig. 2 is a perspective view of the present invention;

fig. 3 is a perspective view of a first adjusting bracket of the present invention;

fig. 4 is an exploded view of a first adjustable bracket according to the present invention;

fig. 5 is a perspective view of the connection mechanism of the present invention;

fig. 6 is an exploded view of the connection mechanism of the present invention.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Referring to fig. 1 to 6, there is provided a wheelchair driving apparatus, including: the wheelchair comprises a driving frame 2 which is arranged at the lower end of a wheelchair 1 in a detachable mode, a first driving wheel 3 and a second driving wheel 4 which are arranged on the driving frame 2 and are used for driving the wheelchair 1 to move forwards and backwards, a first control handle 5 which is arranged on an armrest 13 at one side of the wheelchair 1 and is used for controlling the first driving wheel 3 and the second driving wheel 4 to work, and a second control handle 6 which is arranged on a backrest push rod 14 of the wheelchair 1 and is used for controlling the first driving wheel 3 and the second driving wheel 4 to work, wherein the first control handle 5 and the second control handle 6 can independently control the first driving wheel 3 and the second driving wheel 4 to work. By respectively arranging the first control handle 5 and the second control handle 6 which are independently controlled on the handrail 13 and the backrest push rod 14 of the wheelchair 1, a wheelchair user and a nursing staff can independently control the first driving wheel 3 and the second driving wheel 4 to drive the wheelchair 1 to move, and the use convenience and safety of the wheelchair are improved; secondly, install drive frame 2 on wheelchair 1 with removable mode for drive arrangement can change, and can install on different wheelchairs 1, promote drive arrangement's commonality, thereby increase drive arrangement's rate of utilization, and charge and maintain drive arrangement fast.

The front end of the driving frame 2 is provided with a connecting mechanism 7 fixedly connected with the wheelchair 1 in a detachable mode, two sides of the rear end of the driving frame 2 are respectively provided with a first adjusting frame 8 and a second adjusting frame 9 for adjusting the heights of the first driving wheel 3 and the second driving wheel 4, and the first driving wheel 3 and the second driving wheel 4 are respectively arranged at the end parts of the first adjusting frame 8 and the second adjusting frame 9.

The first adjusting frame 8 comprises a swing arm 81 with one end hinged to the driving frame 2, a rotating shaft 82 hinged to the driving frame 2 and located above the swing arm 81, a rotating block 83 hinged to the middle of the swing arm 81, an adjusting rod 84 connected with the rotating block 83 and the rotating shaft 82 in a penetrating manner, and a damping spring 85 sleeved on the middle of the adjusting rod 84 and located between the rotating block 83 and the rotating shaft 82, and the first driving wheel 3 is mounted at the other end of the swing arm 81; the second adjusting bracket 9 has the same structure as the first adjusting bracket 8. The heights of the first driving wheel 3 and the second driving wheel 4 are respectively adjusted through the first adjusting frame 8 and the second adjusting frame 9, so that the wheelchair 1 with different heights can be adapted, and the universality of the driving device is improved.

A first washer 851 and a second washer 852 are respectively arranged at two ends of the damping spring 85, a first nut 86 and a second nut 87 are mounted on the adjusting rod 84, wherein the first nut 86 is located at the end of the adjusting rod 84, the second nut 87 is located between the damping spring 85 and the rotating shaft 82, and a shaft sleeve 88 is further sleeved on the damping spring 85; both sides of the pivoting block 83 are mounted on the swing arm 81 through the first and second connecting

shafts

831 and 832. The damping spring 85 is sleeved on the adjusting rod 84 between the rotating block 83 and the rotating shaft 82, so that the vibration of the wheelchair 1 in the driving process is reduced, a user can ride the wheelchair more comfortably, and the adaptability of the wheelchair 1 to different road conditions can be improved.

The connecting mechanism 7 comprises a first telescopic claw 71 and a second telescopic claw 72 which are arranged on two sides of the front end of the driving frame 2 and can be stretched towards two sides, a claw adjusting handle 73 which is arranged on the front end of the driving frame 2 in a rotatable mode and is used for adjusting the stretching length of the first telescopic claw 71 and the second telescopic claw 72, and a locking shaft handle 74 which is arranged on the claw adjusting handle 73 and is used for holding and limiting the rotation of the claw adjusting handle 73, wherein one end of the first telescopic claw 71 is provided with a first clamping jaw 711 for clamping the wheelchair 1, and one end of the second telescopic claw 72 is provided with a second clamping jaw 721 for clamping the wheelchair 1. The first telescopic claw 71 and the second telescopic claw 72 are adopted on both sides of the connecting mechanism 7 to be connected with the wheelchair 1, so that the driving frame 2 can be installed on wheelchairs 1 with different widths, and the universality of the driving device is improved.

The other end of the first telescopic jaw 71 is provided with a first rack 712, the other end of the second telescopic jaw 72 is provided with a second rack 722 opposite to the first rack 712, and the end of a rotating rod 731 at the lower end of the jaw adjusting handle 73 is provided with a gear 732 engaged with the first rack 712 and the second rack 722.

The drive frame 2 is provided with a drive-by-wire box 10 which is connected with the first drive wheel 3 and the second drive wheel 4; two parallel front wheels 11 are arranged below the front end of the wheelchair 1, and two parallel rear wheels 12 are arranged below the rear end of the wheelchair 1. The first driving wheel 3 and the second driving wheel 4 can work independently, the first driving wheel 3 and the second driving wheel 4 are electrically connected with the wire control box 10, electric power is supplied by the wire control box 10, and the wire control box 10 is wirelessly connected and controlled with the first control handle 5 and the second control handle 6.

To sum up, when the utility model is used, the first control handle 5 and the second control handle 6 are respectively arranged on the armrest 13 and the backrest push rod 14 of the wheelchair 1; further, the locking shaft handle 74 is loosened, the first telescopic claw 71 and the second telescopic claw 72 are adjusted to proper lengths by rotating the claw adjusting handle 73, then the first telescopic claw 71 and the second telescopic claw 72 are respectively fixed to two sides of the wheelchair 1, then the claw adjusting handle 73 is rotated to tighten the first telescopic claw 71 and the second telescopic claw 72, and finally the claw adjusting handle 71 is locked by the locking shaft handle 74; further, the heights of the first driving wheel 3 and the second driving wheel 4 are changed by operating the first adjusting frame 8 and the second adjusting frame 9, so that the first driving wheel 3 and the second driving wheel 4 are in smooth contact with the bottom surface; finally, after the first control handle 5 and the second control handle 6 are connected with the wire control box 10, the first driving wheel 3 and the second driving wheel 4 can be independently controlled to work through the first control handle 5 and the second control handle 6, and the turning can be carried out by utilizing the speed difference of the independent work of the first driving wheel 3 and the second driving wheel 4.

Of course, the above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes and modifications made by the constructions, features, and principles of the present invention in accordance with the claims of the present invention are intended to be included in the scope of the present invention.

Claims

1. A wheelchair drive apparatus, comprising: the wheelchair comprises a driving frame (2) arranged at the lower end of a wheelchair (1) in a detachable mode, a first driving wheel (3) and a second driving wheel (4) which are arranged on the driving frame (2) and used for driving the wheelchair (1) to move forwards and backwards, a first control handle (5) which is arranged on an armrest (13) on one side of the wheelchair (1) and used for controlling the first driving wheel (3) and the second driving wheel (4) to work, and a second control handle (6) which is arranged on a backrest push rod (14) of the wheelchair (1) and used for controlling the first driving wheel (3) and the second driving wheel (4) to work, wherein the first control handle (5) and the second control handle (6) can independently control the first driving wheel (3) and the second driving wheel (4) to work.

2. A wheelchair drive of claim 1, wherein: the front end of drive frame (2) be provided with the mode that can the dismouting with wheelchair (1) fixed connection's coupling mechanism (7), the rear end both sides of drive frame (2) are provided with respectively and are used for adjusting first drive wheel (3) with first alignment jig (8) and second alignment jig (9) of second drive wheel (4) height, first drive wheel (3) with second drive wheel (4) install respectively in first alignment jig (8) with second alignment jig (9) tip.

3. A wheelchair drive of claim 2, wherein: the first adjusting frame (8) comprises a swing arm (81) with one end hinged to the driving frame (2), a rotating shaft (82) hinged to the driving frame (2) and located above the swing arm (81), a rotating block (83) hinged to the middle of the swing arm (81), an adjusting rod (84) connected with the rotating block (83) and the rotating shaft (82) in a penetrating mode, and a damping spring (85) sleeved in the middle of the adjusting rod (84) and located between the rotating block (83) and the rotating shaft (82), and the first driving wheel (3) is mounted at the other end of the swing arm (81); the second adjusting frame (9) has the same structure as the first adjusting frame (8).

4. A wheelchair drive mechanism as claimed in claim 3, wherein: a first gasket (851) and a second gasket (852) are respectively arranged at two ends of the damping spring (85), a first nut (86) and a second nut (87) are mounted on the adjusting rod (84), wherein the first nut (86) is positioned at the end part of the adjusting rod (84), the second nut (87) is positioned between the damping spring (85) and the rotating shaft (82), and a shaft sleeve (88) is further sleeved on the damping spring (85); two sides of the rotating block (83) are arranged on the swing arm (81) through a first connecting shaft (831) and a second connecting shaft (832).

5. A wheelchair drive unit as claimed in any one of claims 2 to 4, wherein: the connecting mechanism (7) comprises a first telescopic clamping jaw (71) and a second telescopic clamping jaw (72) which are arranged on two sides of the front end of the driving frame (2) and can stretch out and draw back towards two sides, a clamping jaw adjusting handle (73) which is arranged on the front end of the driving frame (2) in a rotatable mode and is used for adjusting the stretching length of the first telescopic clamping jaw (71) and the second telescopic clamping jaw (72), and a locking shaft handle (74) which is arranged on the clamping jaw adjusting handle (73) and is used for tightly holding and limiting the rotation of the clamping jaw adjusting handle (73), wherein one end of the first telescopic clamping jaw (71) is provided with a first clamping jaw (711) used for tightly clamping the wheelchair (1), and one end of the second telescopic clamping jaw (72) is provided with a second clamping jaw (721) used for tightly clamping the wheelchair (1).

6. A wheelchair drive of claim 5, wherein: the other end of the first telescopic claw (71) is provided with a first rack (712), the other end of the second telescopic claw (72) is provided with a second rack (722) opposite to the first rack (712), and the end part of a rotating rod (731) at the lower end of the claw adjusting handle (73) is provided with a gear (732) meshed with the first rack (712) and the second rack (722).

7. A wheelchair drive of claim 6, wherein: a linear control box (10) connected with the first driving wheel (3) and the second driving wheel (4) is arranged on the driving frame (2); two parallel front wheels (11) are arranged below the front end of the wheelchair (1), and two parallel rear wheels (12) are arranged below the rear end of the wheelchair (1).