CN2222527Y

CN2222527Y - Wheel device for motor-driven wheelchair

Info

Publication number: CN2222527Y
Application number: CN 95207464
Authority: CN
Inventors: 陈森荣
Original assignee: Teh Lin Prosthetic and Orthopaedic Inc
Current assignee: Teh Lin Prosthetic and Orthopaedic Inc
Priority date: 1995-04-04
Filing date: 1995-04-04
Publication date: 1996-03-20
Anticipated expiration: 2005-04-04

Abstract

The utility model relates to a wheel device for a motor-driven wheelchair. The utility model comprises wheels and a driving gear. A positioning hole is installed on a wheel frame of each wheel. The driving gear comprises a power device and a gearing device. A driving gear rotated by a power supply device is installed on the power device. Transmitting gears are installed on the gearing device. A locating rod penetrated in the positioning hole of the wheel frame is installed on the transmitting gear. Chains are wound and installed on the driving gears and transmitting gears. When the driving gear is driven by chains, the transmitting gear is rotated and the wheel frame is applied with force to drive the wheel frame to rotate, the driving force is increased, and friction and noise are lowered; in addition, a clutch device is installed on the power device, so the wheels can be changed to be in electric or manual operations.

Description

Wheel device for motor-driven wheelchair

This utility model relates to a kind of Wheel device for motor-driven wheelchair, particularly relates to a kind ofly being convenient to collect, carry and the wheelchair wheel of the big power of tool.

The wheelchair of disabled's action in the past, user must advance wheelchair with the wheel of hand propelled wheelchair, to help disabled's action.But the complete armrest of its power of advancing of this kind manual type wheelchair portion promotes, expend bodily strength in the use, and if when running into the hole, hole, utilize hand to be short of power, can't cross the hole, hole.In order to improve the disappearance that above-mentioned manual type wheelchair expends bodily strength, produce a kind of electric wheelchair, as shown in Figure 1, seat 1 bottom of this electric wheelchair is provided with a driving device 11, and power transmission shaft transmission of the transmission mat of two wheels 2, though this electric wheelchair can reach electronic effect, but because its driving device 11 is equipped on seat support 1 bottom, make the wheelchair can't folding storage, when carrying when going out to use, very inconvenient for the disabled.And because 2 on this two wheel leans on a power transmission shaft transmission, its power of advancing is also not enough, when meeting the hole, hole, still can't cross smoothly, causes the inconvenience of user.Therefore wheelchair also can't really be looked after the disabled in the past.

The purpose of this utility model is to provide a kind of Wheel device for motor-driven wheelchair, and having increases driving force and reduce gearing friction and the effect of reduction transmission noise, to reach more practical purpose.

Another purpose of the present utility model is providing a kind of Wheel device for motor-driven wheelchair, but has electric operating and manually operated effect.

This utility model Wheel device for motor-driven wheelchair is assemblied on the wheelchair both sides, comprise a wheel and a driving device, it is characterized in that: the wheel frame of this wheel is provided with at least one locating hole, this driving device is located at this and takes turns in the frame, comprise power set, actuating device and power supply device, these power set are provided with one can supply power supply and the driven wheel that rotates via power supply device, this actuating device is provided with a travelling gear and a chain, locating hole place with respect to the wheel frame on this travelling gear is provided with locating rod, and this locating rod is arranged in the locating hole of wheel frame, this chain is located on the driven wheel and travelling gear of power set, when the driven wheel of power set during by chain drive, its locating rod of mat forces in the wheel frame can to make travelling gear rotate also, and the driven wheel frame rotates.Therefore, rotate, can increase driving force and reduce frictional force and noise, and these power set are provided with a clutch apparatus, can change into electronic wheel or manual operation with the chain drive wheel.

Below by most preferred embodiment and accompanying drawing Wheel device for motor-driven wheelchair of the present utility model is elaborated, in the accompanying drawing:

Fig. 1 is the side view of motorized wheelchair in the past.

Fig. 2 is the exploded view of this utility model preferred embodiment.

Fig. 3 is the constitutional diagram of this utility model preferred embodiment.

Fig. 4 is first sketch map of this utility model preferred embodiment.

Fig. 5 is second sketch map of this utility model preferred embodiment.

Shown in Fig. 2,3, this utility model preferred embodiment Wheel device for motor-driven wheelchair comprises two wheels 3 (because two wheels structure is identical, so wherein only show a wheel) and a driving device 4.

Two wheels 3 are located at the both sides of wheelchair respectively, and the wheel frame 31 of each wheel 3 is provided with three and is the locating holes 32 that 120 degree are provided with mutually, and respectively take turns frame 31 central authorities and be provided with perforation 33, one sides and be provided with a lid 448.

This driving device 4 is located at this and takes turns 448 of frame 31 and this lids, comprises power set 40, an actuating device 41 and a power supply device 42.

These power set 40 connect a power supply device 42, rotate with the supply power supply.These power set 40 are provided with a motor 43, a clutch apparatus 44 and a driven wheel 449 in the present embodiment.This motor 43 is via two accumulator, 421 supply power supplys, and the rotating shaft 431 of this motor 43 articulates a worm screw 432.This clutch apparatus 44 is provided with a fluted disc being meshed with worm screw 432 in 43 rotating shafts 431 of this motor 441, an axostylus axostyle 442 and a clutch control lever 443.Wherein, these fluted disc 441 central authorities are provided with a perforation 444, and these 444 peripheries of boring a hole are provided with fastening part 446 (this fastening part 446 is to form two breach by these perforation 444 peripheries in the present embodiment).These axostylus axostyle 442 outer sheathed sleeves 45, this sleeve 45 compresses a flexible member 46, and be arranged in the perforation 444 of fluted disc 441, also be provided with fastening part 447 (this fastening part 447 is by being convexly equipped with two projections on the axostylus axostyle 442 in the present embodiment) on it, can be stuck on the fastening part 446 of fluted disc 441, just projection is equipped in the breach.These axostylus axostyle 442 1 ends also expose lid 448 outsides.This clutch control lever 443 is located at lid 448 outsides, and close axostylus axostyle 442 is exposed to the position of lid 448, can promote axostylus axostyle 442 exposes the outer positions of lid 448 and up moves, the fastening part 447 that makes axostylus axostyle 442 separates with the fastening part 446 of fluted disc 441, on the contrary, this axostylus axostyle 442 is pushed against by flexible member 46, and axostylus axostyle 442 is combined with fluted disc 441.

This actuating device 41 is provided with a travelling gear 411 and a chain 412, be provided with three locating rods 413 with respect to these three locating hole 32 places of taking turns frame 31 on this travelling gear 411, this locating rod 413 is arranged in the locating hole 32 of wheel frame 31, and it is fixing by a latch 414, this chain 412 is set around the driven wheel 449 (as Fig. 3) of this travelling gear 411 and this power set 40, when axostylus axostyle 442 rotates, can drive travelling gear 411 transmissions by chain 412.

As Fig. 2, shown in 3, when the fastening part 446 of this axostylus axostyle 442 engages mutually with the fastening part 447 of fluted disc 441, if start power supply device 42 motor 43 of power set 40 is rotated, worm screw 432 on this motor 43 can drive fluted disc 441 rotations with its engagement, because this clutch apparatus 44 is to be equipped on the fluted disc 441, therefore, this axostylus axostyle 442 also can be along with rotation, and by 411 rotations of chain 412 drive travelling gears, and because this travelling gear 411 is equipped in the locating hole 32 of wheel frame 31 with locating rod 413, so this travelling gear 411 forces on the wheel frame 31 by this locating rod 413, rotates and drive wheel 3.

As mentioned above, by the media of chain 412, therefore, can increase the strength that transmission produces widely and reduce friction, and can reduce the noise that transmission produces, more convenient practicality during actual the use as transmission wheel 3.

In addition, this utility model also has can utilize electronic and manually operated effect, shown in Fig. 3,4, when the clutch control lever 434 pushing and pressing axostylus axostyles 442 of clutch apparatus 44 expose the position of lid 448, the fastening part 446 of this axostylus axostyle 442 just is limited on the fastening part 447 of fluted disc 441, and this fluted disc 441 is when being subjected to worm screw 431 transmissions of motor 43, and the axostylus axostyle 442 that can drive clutch apparatus 44 rotates, at this moment, be exactly a kind of electric operating.On the contrary, in the time will making electric operating into manual operation, shown in Fig. 3,5, can push clutch control lever 443 open, this axostylus axostyle 442 will be by 445 pushing and pressing of the flexible members in the perforation 444 of fluted disc 441, and make fastening part 447 on it break away from the blocking of fastening part 446 on the axostylus axostyles 442, so, just can manually operated mode promote wheel, to reach manually operated effect.

The utlity model has following advantage:

1. the mode of this utility model transmission wheel drives chain 412 transmissions with power set 40, drive via chain 412 is fastened in travelling gear 411 rotations of taking turns on the frame 31 again, and reach electrically operated effect, therefore, frictional force that its transmission produced and noise reduce widely, and increase the power that transmission produced.

2. this utility model has electronic and manually operated effect by the control of clutch apparatus 44.

In sum, this utility model Wheel device for motor-driven wheelchair, can reach really increases transmission force and reduces gearing friction and reduce the effect of transmission noise, but and has electric operating and a manually operated effect.

Claims

1. a Wheel device for motor-driven wheelchair is installed on the wheelchair both sides, comprises a wheel, it is characterized in that:

The wheel frame of this wheel is provided with the locating hole of at least one;

This is taken turns and is provided with a driving device in the frame, this driving device comprises power set, actuating device and power supply device, these power set are provided with a driven wheel that utilizes this power supply device supply power supply and rotate, this actuating device is provided with a travelling gear and a chain, locating hole place with respect to the wheel frame on this travelling gear is provided with locating rod, and this locating rod penetrates in the locating hole of wheel frame, and this chain is set around on this driven wheel and the travelling gear.

2. Wheel device for motor-driven wheelchair as claimed in claim 1 is characterized in that:

Locating hole on this wheel wheel frame has three, and is mutually 120 degree, and the locating rod on this actuating device travelling gear has three.

3. if claim 1 or 2 described Wheel device for motor-driven wheelchair is characterized in that:

This is taken turns frame one side and is provided with a lid, and this driving device is located at this and takes turns between frame and lid;

The power set of this driving device are provided with a motor and a clutch apparatus, be articulated with a worm screw in the rotating shaft of this motor, this clutch apparatus is provided with the fluted disc that is meshed with this worm screw, axostylus axostyle and clutch control lever, these fluted disc central authorities are provided with a perforation, this perforation periphery is provided with fastening part, this axostylus axostyle is arranged in the perforation of this fluted disc, which is provided with and the fastening part of this perforation fastening part of blocking or disengaging mutually, this axostylus axostyle one end and the outside of exposing this lid, this clutch control lever is located at this lid outside, controls this axostylus axostyle and mutually combines with fluted disc or separate.

4. Wheel device for motor-driven wheelchair as claimed in claim 3 is characterized in that:

The fastening part of this clutch apparatus fluted disc central perforation periphery is a breach, and the fastening part of this axostylus axostyle is the projection that cooperates with this breach.