CN219184600U

CN219184600U - Wheelchair capable of switching running states

Info

Publication number: CN219184600U
Application number: CN202320463230.6U
Authority: CN
Inventors: 肖志明
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-03-13
Filing date: 2023-03-13
Publication date: 2023-06-16
Anticipated expiration: 2033-03-13

Abstract

The utility model discloses a wheelchair capable of switching running states, which comprises a wheelchair and a track wheel set, wherein universal wheels are arranged on two sides of the front end of the wheelchair, the track wheel set comprises a supporting plate frame, chain tracks, a front gear and a rear gear, the front gear is in transmission connection with the rear gear through the chain tracks, the rear gear is connected with a driving mechanism, a rotating shaft is connected between the rear gears of the two track wheel sets, a hydraulic telescopic rod is arranged between the wheelchair and the track wheel set, the hydraulic telescopic rod contracts to drive the front end of the track wheel set to rotate and move downwards, so that the front gear of the track wheel set and the chain track below the rear gear are jointly grounded to conveniently run on uneven roads, the hydraulic telescopic rod stretches to drive the front end of the track wheel set to rotate and move upwards, so that the chain track below the rear gear of the track wheel set and the universal wheels are mutually matched and grounded to conveniently run on flat roads such as a ceramic tile floor, and different road conditions are met by switching running states.

Description

Wheelchair capable of switching running states

Technical Field

The utility model relates to the technical field of wheelchairs, in particular to a wheelchair capable of switching running states.

Background

Along with the development of science and technology, electric wheelchair gradually goes into disabled person's life, but current electric wheelchair has two kinds, be wheeled wheelchair and crawler-type wheelchair respectively, wheeled wheelchair is fit for walking the level road surface such as ceramic tile ground, but is unsuitable for walking to climb stair or walk the level road surface beyond the obstacle, and crawler-type wheelchair is suitable for climbing stair or crossing the obstacle and go on the level road surface, but too heavy, the speed of traveling is slower, and is unsuitable for walking the level road surface such as ceramic tile ground, therefore the unable state of traveling of switching of above-mentioned two kinds of electric wheelchairs is in order to adapt to different road surface situation, be difficult to satisfy user many-sided user demand.

Disclosure of Invention

The utility model aims to provide a wheelchair capable of switching running states so as to solve the technical problems.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a changeable state of traveling's wheelchair, including wheelchair and the track wheelset of setting in the wheelchair both sides, the front end both sides of wheelchair are provided with the universal wheel, the track wheelset includes the back plate frame, the chain track with rotate the front gear of installing in back plate frame one side, back gear is connected through chain track transmission between front gear and the back gear, back gear is connected with actuating mechanism for drive back gear rotates, and be connected with the pivot between the back gear of two track wheelsets, be provided with hydraulic telescoping rod between wheelchair and the track wheelset, hydraulic telescoping rod shrink drives the rotatory lower shift of front end of track wheelset, make the front gear of track wheelset and the rotatory upward shift of front end of back gear below the drive track wheelset of chain track, make the chain track and the universal wheel of the back gear below of track wheelset mutually cooperate the ground to travel.

In one embodiment, the drive mechanism includes a motor.

In one embodiment, one side of the supporting plate frame is also provided with a manual wheel matched with the rear gear in a transmission way, and the manual wheel is connected with a hand-pulling driving rod for driving the manual wheel to rotate in a unidirectional way.

In one embodiment, the crawler wheel group further comprises an inner chain, a first gear group and a second gear group, the first gear group and the second gear group are rotatably arranged on one side of the supporting plate frame, the first gear group comprises a gear A, a gear B, a gear C and a gear D which are matched in an up-down sequential transmission mode, the first gear group is rotatably arranged on one side of the supporting plate frame through the gear C, the front end of the gear C is matched with the front gear in a transmission mode, the first gear group comprises a gear E and a gear F which are coaxially arranged, an inner gear is coaxially arranged on the rear gear, the inner gear is connected with the gear F through an inner chain transmission mode, a rotating rod is connected with one end, far away from the gear A, of the rotating rod, and a steering handle is connected to control the gear A to be matched with the gear E in a transmission mode, or the gear D to be matched with the gear E in a transmission mode.

In one embodiment, the crawler wheel set comprises a supporting plate frame, a crawler wheel set and a hand-pulling driving rod, wherein the crawler wheel set is provided with a crawler wheel set, the supporting plate frame is provided with a track wheel set, the crawler wheel set is provided with a track wheel set, and the crawler wheel set is provided with a track wheel set.

In one embodiment, the steering handle is rotatably arranged on one side of the supporting plate frame, the steering handle is provided with a limiting arc groove, and the end part of the rotating rod protrudes towards one side of the decorative cover to form a protruding column which is correspondingly matched with the limiting arc groove.

In one embodiment, one side of the wheelchair is also provided with a brake handle in braking engagement with the track wheel set.

In one embodiment, a protective cover is arranged above the wheel sets of the crawler belt corresponding to the wheelchair, and an armrest is arranged at the rear end of the wheelchair.

In one embodiment, the crawler belt wheel set further comprises a plurality of auxiliary gears arranged on one side of the supporting plate frame, and the bottoms of the auxiliary gears are in transmission fit with the chain crawler belt.

In one embodiment, the chain track includes a steel chain and a rubber band surrounding the steel chain.

The utility model has the following beneficial effects:

the utility model comprises a wheelchair and the crawler wheel sets arranged on two sides of the wheelchair, wherein universal wheels are arranged on two sides of the front end of the wheelchair, the crawler wheel sets comprise a supporting plate frame, a chain crawler and a front gear and a rear gear which are rotatably arranged on one side of the supporting plate frame, the front gear and the rear gear are connected through the chain crawler in a transmission way, the rear gear is connected with a driving mechanism for driving the rear gear to rotate, a rotating shaft is connected between the rear gears of the two crawler wheel sets, a hydraulic telescopic rod is arranged between the wheelchair and the crawler wheel sets, the front end of the crawler wheel sets is driven to rotate and move downwards by the contraction of the hydraulic telescopic rod, the front gear of the crawler wheel sets and the chain crawler under the rear gear are driven to travel together on an uneven road surface by the expansion of the hydraulic telescopic rod, the front end of the crawler wheel sets is driven to rotate and move upwards by the expansion of the hydraulic telescopic rod, and the chain crawler under the rear gear and the universal wheels are mutually matched and ground to travel, namely, the wheelchair is switched to be a wheelchair wheel type, and the wheelchair can conveniently travel on flat road surfaces such as a ceramic tile ground, so that the traveling state can be switched to adapt to different road conditions, and the use requirements of users in multiple aspects are met.

Drawings

FIG. 1 is a perspective view of one embodiment of the present utility model in a condition switched to a tracked wheelchair;

FIG. 2 is a right side view of a portion of the structure of one embodiment of the present utility model in a condition switched to a tracked wheelchair;

FIG. 3 is a front view of one embodiment of the present utility model in a change to track wheelchair;

FIG. 4 is a front view of one embodiment of the present utility model in a wheeled wheelchair position;

FIG. 5 is a right side view of a portion of the structure of one embodiment of the present utility model in a wheeled wheelchair position;

fig. 6 is a right side view of one embodiment of the present utility model in a state of being switched to a wheeled wheelchair.

The drawings are marked: the novel bicycle comprises a wheelchair, a 2 universal wheel, a 3 supporting plate frame, a 4-chain crawler, a 5 front gear, a 6 rear gear, a 7 manual wheel, an 8-hand driving rod, a 9-inner chain, a10 gear A, a 11 gear B, a 12 gear C, a 13 gear D, a 14 gear E, a 15 gear F, a 16 inner gear, a 17 auxiliary gear, a 18 pedal, a 19 steering handle, a 20 limiting arc groove, a 21 rotating rod, a 22 convex column, a 23 motor, a 24 rotating shaft, a 25 hydraulic telescopic rod, a 26 electric control cabin, a 27 electric rocker, a 28 decorative cover, a 29 yielding hole, a 30 braking handle, a 31 armrest and a 32 protective cover.

Detailed Description

For further illustration of the various embodiments, the utility model is provided with the accompanying drawings. The accompanying drawings, which are incorporated in and constitute a part of this disclosure, illustrate embodiments and together with the description, serve to explain the principles of the embodiments. With reference to these matters, one of ordinary skill in the art will understand other possible embodiments and advantages of the present utility model. The components in the figures are not drawn to scale and like reference numerals are generally used to designate like components.

For convenience of description, the up-down, front-back, left-right directions are shown by arrows in fig. 2 and 3, and the clockwise and counterclockwise directions are all referred to by the view angle of fig. 2.

Referring to fig. 1-6, as an embodiment of the present utility model, a wheelchair capable of switching running states is provided, including a wheelchair 1 and track wheel sets disposed at left and right sides of the wheelchair 1, wherein universal wheels 2 are disposed at two sides of a front end of the wheelchair 1, the track wheel sets include a support plate frame 3, a chain track 4, and a front gear 5 and a rear gear 6 rotatably mounted at one side of the support plate frame 3, the front gear 5 and the rear gear 6 are in transmission connection through the chain track 4, the rear gear 6 is connected with a driving mechanism, the driving mechanism includes a motor 23 for driving the rear gear 6 to rotate, and a rotating shaft 24 is connected between the rear gears 6 of the two track wheel sets, a hydraulic telescopic rod 25 is disposed between the wheelchair 1 and the track wheel sets, the hydraulic telescopic rod 25 contracts to drive the front ends of the track wheel sets to rotate and move down, so that the front gears 5 of the track wheel sets and the chain tracks 4 below the rear gear 6 jointly run in ground, and the hydraulic telescopic rod 25 stretches to drive the front ends of the track sets to rotate and move up, so that the chain tracks 4 below the track sets and the universal wheels 2 mutually cooperate and run.

According to the technical scheme, the front end of the crawler wheel set is driven to rotate and move downwards by controlling the contraction of the hydraulic telescopic rod 25, so that the front gear 5 of the crawler wheel set and the chain crawler 4 below the rear gear 6 are jointly grounded to run, namely, the crawler wheelchair is switched, and the crawler wheelchair is convenient to climb stairs or run on uneven roads after crossing obstacles; the front end of the crawler wheel set is driven to rotate and move upwards through the stretching of the hydraulic telescopic rod 25, so that the chain crawler 4 below the rear gear 6 of the crawler wheel set and the universal wheel 2 are mutually matched and run in a grounding way, namely, the crawler wheel set is switched into a wheel type wheelchair, and the crawler wheel type wheelchair can conveniently and rapidly run on flat roads such as ceramic tile lands.

In this embodiment, still be provided with automatically controlled storehouse 26 in the wheelchair 1, it includes the battery, hydraulic telescoping rod control module and chip, be used for providing electric power back drive control respectively, still be provided with electric rocker 27 on the wheelchair 1, be used for controlling wheelchair 1 direction, support grillage 3 one side still be provided with back gear 6 transmission complex manual wheel 7, be connected with hand power actuating lever 8 on the manual wheel 7, be used for driving the manual wheel 7 and carry out unidirectional rotation, and then control back gear 6 and chain track 4 rotate, this setting makes when the battery does not have electric or after the trouble, can remove the walking through manual mode control wheelchair 1, guarantee the travelling capacity.

In this embodiment, the crawler wheel group still includes inner chain 9, first gear train and second gear train rotate and set up in support grillage 3 one side, first gear train is including upper and lower order transmission complex gear A10, gear B11, gear C12, gear D13, first gear train passes through gear C12 and rotates and set up in support grillage 3 one side, and the front end and the front gear 5 transmission complex of gear C12, first gear train includes coaxial gear E14 and gear F15 that set up, rear gear 6 coaxial is provided with internal gear 16, be connected through inner chain 9 transmission between internal gear 16 and the gear F15, gear A10 is connected with a dwang 21, the one end that dwang 21 kept away from gear A10 is connected with a steering handle 19 for control gear A10 and gear E14, or gear D13 and gear E14 transmission complex.

In this embodiment, the device further includes a decorative cover 28, which is mounted on a side of the track wheel set away from the support plate frame 3, so that the device is more attractive, and the decorative cover 28 is provided with a yielding hole 29 corresponding to the position of the steering handle 19 and the hand driving rod 8, so that the user can operate the steering handle 19 and the hand driving rod 8 conveniently.

In this embodiment, the steering handle 19 is rotatably disposed on one side of the support plate frame 3, and the steering handle 19 has a limiting arc groove 20, and a protruding column 22 is formed by protruding an end of the rotating rod 21 toward the decorative cover 28, where the protruding column 22 is correspondingly matched with the limiting arc groove 20.

The operation process of the utility model is as follows:

as shown in fig. 2, when the wheelchair 1 needs to be controlled to move forward in a manual mode, the steering handle 19 is rotated anticlockwise and upwards, so that the rotating rod 21 drives the first gear set to rotate clockwise integrally, the gear a10 is separated from the gear E14, the gear D13 is matched with the gear E14 in a transmission manner, then the hand driving rod 8 is rotated anticlockwise and further drives the manual wheel 7 to rotate anticlockwise, when the hand driving rod 8 rotates clockwise, the manual wheel 7 keeps still, the hand driving rod 8 is repeatedly rotated anticlockwise and repeatedly, further drives the manual wheel 7 to rotate anticlockwise, and further sequentially drives the gear C12 to rotate clockwise, the gear D13 to rotate anticlockwise, the gear E14, the gear F15, the inner chain 9, the inner gear 16 and the rear gear 6 to rotate clockwise, so that the chain crawler 4 is driven to rotate clockwise, and the wheelchair 1 can be driven to move forward; as shown in fig. 5, when the wheelchair 1 needs to be controlled to travel backwards manually, the steering handle 19 is rotated clockwise and downwards, so that the rotating rod 21 drives the first gear set to rotate anticlockwise integrally, the gear C12 is separated from the gear E14, the gear a10 is matched with the gear E14 in a transmission manner, then the hand driving rod 8 is rotated anticlockwise and further drives the manual wheel 7 to rotate anticlockwise, when the hand driving rod 8 rotates clockwise and downwards, the manual wheel 7 keeps still, the hand driving rod 8 is repeatedly rotated anticlockwise and repeatedly, and further drives the manual wheel 7 to rotate anticlockwise, and further sequentially drives the gear C12 to rotate clockwise, the gear B11 to rotate anticlockwise, the gear a10 to rotate clockwise, the gear E14, the gear F15, the inner chain 9, the inner gear 16 and the rear gear 6 to rotate anticlockwise, so that the chain track 4 is driven to rotate anticlockwise, and the wheelchair 1 can be driven to travel backwards.

In this embodiment, a brake handle 30 that is in braking engagement with the track wheel set is further provided on one side of the wheelchair 1.

In this embodiment, the wheelchair 1 is provided with a protective cover 32 above the corresponding track wheel set, so as to prevent the track wheel set from contacting the user when switching the running state, and the wheelchair has a protective function, the pedals 18 are arranged on two sides of the front end of the wheelchair 1, and the handrail 31 is arranged at the rear end of the wheelchair 1.

In this embodiment, the track wheelset still includes a plurality of pinion 17 that set up in support grillage 3 one side, and pinion 17's bottom and chain track 4 transmission cooperation play supplementary effect that drives chain track 4 pivoted, also play the supporting role to chain track 4 simultaneously.

In this embodiment, the chain track 4 includes the steel chain and surrounds the rubber tape in the steel chain outside, and the rubber tape is contacted with the road surface, and amortization effect is better, and can not cause the damage to the road surface.

While the utility model has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A wheelchair capable of switching running states, which is characterized in that: including wheelchair and the track wheelset of setting in the wheelchair both sides, the front end both sides of wheelchair are provided with the universal wheel, the track wheelset includes the back-up frame, the chain track with rotate the front gear of installing in back-up frame one side, back gear, be connected through the chain track transmission between front gear and the back gear, back gear is connected with actuating mechanism, be used for driving back gear and rotate, and be connected with the pivot between the back gear of two track wheelsets, be provided with the hydraulic telescoping rod between wheelchair and the track wheelset, the front end rotation of hydraulic telescoping rod shrink drive track wheelset moves down, make the front gear of track wheelset and the chain track of back gear below go jointly the ground connection, the hydraulic telescoping rod stretches and drives the front end rotation of track wheelset and move up, make the chain track of the back gear below of track wheelset and the mutual cooperation ground connection of universal wheel go.

2. The switchable wheelchair of claim 1 wherein: the drive mechanism includes a motor.

3. The switchable wheelchair of claim 1 wherein: one side of the supporting plate frame is also provided with a manual wheel matched with the rear gear in a transmission way, and the manual wheel is connected with a hand-pulling driving rod for driving the manual wheel to rotate unidirectionally.

4. A wheelchair according to claim 3, wherein the wheelchair is switchable between a travel state and a non-travel state: the crawler wheel group still includes interior chain, first gear train and second gear train rotate and set up in supporting plate frame one side, first gear train is including upper and lower sequential transmission complex gear A, gear B, gear C, gear D, first gear train passes through gear C and rotates and set up in supporting plate frame one side, and gear C's front end and preceding gear transmission complex, first gear train is including coaxial gear E and gear F that sets up, the coaxial internal gear that is provided with of back gear, be connected through interior chain transmission between internal gear and the gear F, gear A is connected with a dwang, the one end that the dwang kept away from gear A is connected with a steering handle for control gear A and gear E, or gear D and gear E transmission complex.

5. The switchable wheelchair of claim 4 wherein: the device also comprises a decorative cover which is arranged on one side of the crawler wheel set, which is away from the supporting plate frame, and the decorative cover is provided with a yielding hole corresponding to the position of the steering handle and the hand-pulling driving rod.

6. The switchable wheelchair of claim 5 wherein: the steering handle is rotationally arranged on one side of the supporting plate frame and is provided with a limiting arc groove, the end part of the rotating rod protrudes towards one side of the decorative cover to form a convex column, and the convex column is correspondingly matched with the limiting arc groove.

7. The switchable wheelchair of claim 1 wherein: one side of the wheelchair is also provided with a brake handle which is in braking fit with the crawler wheel set.

8. The switchable wheelchair of claim 1 wherein: the wheelchair is provided with a protective cover corresponding to the upper part of the crawler wheel group, and the rear end of the wheelchair is provided with armrests.

9. The switchable wheelchair of claim 1 wherein: the crawler wheel group also comprises a plurality of auxiliary gears arranged on one side of the supporting plate frame, and the bottoms of the auxiliary gears are in transmission fit with the chain crawler.

10. The switchable wheelchair of claim 1 wherein: the chain track comprises a steel chain and a rubber belt surrounding the outer side of the steel chain.