CN203354790U

CN203354790U - Multifunctional electric wheelchair

Info

Publication number: CN203354790U
Application number: CN 201320443150
Authority: CN
Inventors: 翟汉国
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-24
Filing date: 2013-07-24
Publication date: 2013-12-25
Anticipated expiration: 2023-07-24

Abstract

The utility model discloses a multifunctional electric wheelchair, belongs to the field of electric wheelchair equipment, and in particular relates to an electric wheelchair capable of freely walking on the ground and capable of steadily going upstairs and downstairs. The multifunctional electric wheelchair comprises a frame (1), two climbing spoke wheels (9) and a power device, wherein the climbing spoke wheels (9) are used for driving the frame (1) to go upstairs and downstairs; the power device is used for supplying power; the two climbing spoke wheels (9) are symmetrically connected to and arranged on two outer sides of the frame (1) through a main shaft (13). The multifunctional electric wheelchair is characterized in that a transmission mechanism is arranged at the bottom of the frame (1) through a fixed bracket; the power device comprises a ground walking power mechanism and a climbing power mechanism; the ground walking power mechanism is respectively connected with a handlebar (2) at the front end of the frame (1) and a rear walking wheel (8) on the rear part of the frame (1); the climbing power mechanism is connected with the main shaft (13) through the transmission mechanism. The multifunctional electric wheelchair can automatically walk on the ground and can go upstairs and downstairs freely, steadily, safely and effortlessly.

Description

Multifunctional electric wheelchair

Technical field

Multifunctional electric wheelchair, belong to the electric wheelchair apparatus field, is specifically related to a kind of electric wheelchair of going downstairs on not only can freely having walked but also can be steadily on ground.

Background technology

In the middle of prior art, can go up wheelchair or dolly downstairs and mainly contain two kinds, a kind of is the crawler type dolly, another kind is the star wheel type dolly, in other words the spoke wheel type dolly.All there is different defects in this several wheelchairs family dolly because of the structure of self, at first, the crawler type dolly, when upper going downstairs, only with the side edge of stairway step, touch, too little with the contact surface of stairway step, less stable during operation, and the lift angle of existing residential houses stair is larger, be generally 28 ° ~ 34 °, therefore its security performance is not high.

Second, the spoke wheel type dolly, mainly by vehicle frame, the composition such as spoke wheel and seat, spoke wheel consists of wheel hub and several spoke bars and wheel, spoke wheel has two, be arranged on respectively the both sides of vehicle frame and seat, this spoke wheel type dolly has solved the problem little with the stair contact surface, when stair activity, wheel contacts with the stair plane, therefore, its safety is better than crawler type dolly, but practical effect is desirable not enough, the subject matter that it exists is: 1, the length of spoke bar can not be adjusted, and the size of existing stair exists very large difference, the tread run of existing house and public place stair is mostly 26 ~ 30cm, riser height is 15 ~ 17.5cm.While changing in the scope of riser height at 15 ~ 17.5cm of stair, if the length of spoke bar is constant, load gravity is likely between the two spoke bar strong points, also likely be positioned at the outside of the two spoke bar strong points, be positioned at the land outside of wheel of lower floor ladder, also likely with two spoke bars in below the spoke bar coincide.When load gravity, between the two spoke bar strong points time, the motion that is suitable for going upstairs, now, just can make spoke wheel upwards overturn by less power, completes the motion of going upstairs.But the motion that is not suitable for going downstairs, because the following wheel that lands can be close to the tread of stair, be conducive to spoke wheel to the direction upset of going downstairs, but the motion that is not suitable for going upstairs, therefore, under this kind of stress, the motion of going upstairs will be used larger power.Therefore, existing spoke wheel type dolly is due to the stair that can not adapt to differing heights, and in upper process of going downstairs, neither convenient operation, not laborsaving yet.

2, existing spoke wheel type dolly is to realize the spoke wheel upset with Manual-pushing, thereby, required thrust is very large, stair activity is required great effort very much, because dolly not only will move ahead, also up, its difficulty is well imagined, for most of ordinary peoples, load is carried out several floors on wheel-chair and is difficult to be competent at.In addition, the Gai Che center can not be adjusted, not right in the position at practical operation Shi，Ruo center, likely produces very large opposing torque, and this is a very large added burden for motion upstairs, and the people of implementation will pay more muscle power.

Summary of the invention

The technical problems to be solved in the utility model is: overcome the deficiencies in the prior art, provide a kind of and can control voluntarily, can walk on the ground, the multifunctional electric wheelchair that can steadily above go downstairs again.

This utility model solves the technical scheme that its technical problem adopts: this multifunctional electric wheelchair, comprise vehicle frame, drive the climbing spoke wheel of going downstairs on vehicle frame and the power set that power is provided, the climbing spoke wheel is arranged with two, connect and be arranged on vehicle frame both sides outward by main shaft is symmetrical, it is characterized in that: described drive mechanism is arranged on bottom of frame by fixed support, power set comprise ground running actuating unit and climbing actuating unit, the handlebar of ground running actuating unit difference connecting vehicle frame front end and the walking trailing wheel at vehicle frame rear portion; The climbing actuating unit connects main shaft by drive mechanism.Ground running and on the walking action of going downstairs provide power by different actuating units respectively, facilitate user oneself to control, without other people, assist.

Described climbing spoke wheel comprises six spokes that are radial setting, every cylindrical shell setting that spoke is inner hollow, and the outer end of every spoke has chute, in the end of spoke, the buffer unit that can drive travelling wheel free-extension in chute is installed.By the setting of buffer unit, make user upper downstairs the time, not there will be because of vehicle frame rock and vibrations that wheel brings while bumping with stairway step cause the dangerous of use, raising traveling comfort energy and security performance.

Described buffer unit is sleeved on the end of spoke, comprises telescope support, walks wheel shaft, pulley spindle and pulley, and the telescope support both ends connect to walk respectively wheel shaft and pulley spindle, and by walking wheel shaft and pulley spindle, travelling wheel and pulley are installed.

Described fixed support comprises sleeve and the framework that is sleeved on the main shaft outside, and sleeve is divided into two sections of left and right, between two sections sleeves, by hexagonal-shaped frame, is connected and fixed, and frame roof is fixedly connected with bottom of frame; Main shaft stretches out respectively two sections sleeve outer ends through two sections sleeves and two ends, at the main shaft both ends, by bearing, two climbing spoke wheels is installed; Fixing suit buffer disc, buffer disc outer rim and pulley sliding-contact on the sleeve of two climbing spoke wheel inboards.

Described buffer disc is the disk that circumference is provided with an inside recess.The recess of buffer disc is the key position that pulley is inside contracting in spoke, by pulley, with buffer disc, relatively moving in process, pulley is realized the capable of expansion and contraction of pulley in the position of buffer disc outer rim, thereby indirectly change cleverly spoke total length at the volley, vibrations of avoiding travelling wheel and stairway step to bump bringing and rocking.

Described ground running actuating unit comprises movable motor and traveling controller, by traveling controller, connects handlebar; The climbing actuating unit comprises climbing motor and climbing controller, between climbing motor and climbing controller, is provided with permutator downstairs, by traveling controller, connects handlebar.By same battery walk earthward actuating unit and the climbing actuating unit power respectively, battery is furnished with charger.

Described drive mechanism is gear set transmission, comprise three grades of reduction gearing mechanisms that three groups of gears form, the primary speed-down transmission comprises the first drivewheel be arranged on the climbing motor output shaft and the first follower be engaged with, and the first drivewheel place is provided with parking brake; The double reduction transmission comprises the second follower that passes through coaxial mounted the second drivewheel of the first power transmission shaft and mesh with the second drivewheel with the first follower; Three grades of deceleration transmission comprise that with the second follower, by coaxial mounted the 3rd drivewheel of second driving shaft and the 3rd follower that is meshed with the 3rd drivewheel, the 3rd follower is fixedly connected with the main shaft middle part.Take turns and realize multi-change speed by multiple sets of teeth, guarantee traveling comfort and safety.

Described drive mechanism is Worm and worm-wheel gearing, comprises worm-gear speed reducer, and the outfan of worm-gear speed reducer connects the main shaft middle part, and the worm-gear speed reducer input connects the outfan of climbing motor.

Described vehicle frame is provided with medicated cushion and back cushion, and the rear support leg of back cushion and vehicle frame is the pivotable vehicle frame rear that is connected to respectively, by hinge, realizes the folding of rear support leg and back cushion or stretches.Adjust the comfort level of user by the anglec of rotation of adjusting back cushion, by adjusting the angle of inclination of rear support leg, can realize the folding stretching of wheelchair frame, be convenient to take in.

Described vehicle frame rear is provided with back bar, and back bar is by two of left and right telescopic and the telescopic both sides that are arranged on back cushion of adjusting bolt.

Compared with prior art, the beneficial effect that this utility model has is:

1, multi-functional automatic control, auxiliary without other people, easy to operate: ground running and on the walking action of going downstairs provide power by different actuating units respectively, can ground running, can go up again downstairs, Automatic Control, when ground running, facilitate user oneself to control, can walk freely without other people are auxiliary; Downstairs the time, time saving and energy saving upper, steady safety again.

2, upper steady downstairs, security performance is high: buffer unit is set up in the end at the climbing spoke wheel, setting by buffer unit, make user when upper going downstairs, by pulley, with buffer disc, relatively moving in process, pulley is realized the capable of expansion and contraction of pulley in the position of buffer disc outer rim, thereby indirectly change cleverly spoke total length at the volley, a plurality of spokes of avoiding climbing spoke wheel in traveling process with stairway step constantly bump the vehicle frame that brings vertical tremor and rock, improve traveling comfort energy and security performance, improved again upper speed downstairs simultaneously.

3, comfort level is high, convenient for collecting: vehicle frame is provided with medicated cushion and back cushion, and the rear support leg of back cushion and vehicle frame is the pivotable vehicle frame rear that is connected to respectively, by hinge, realizes the folding of rear support leg and back cushion or stretches; Adjust the comfort level of user by the anglec of rotation of adjusting back cushion, by adjusting the angle of inclination of rear support leg, can realize the folding stretching of wheelchair frame, be convenient to take in.

The accompanying drawing explanation

Fig. 1 is this multifunctional electric wheelchair front view schematic diagram.

Fig. 2 is the spoke structure schematic diagram of this climbing spoke wheel.

Fig. 3 is this climbing spoke wheel and gear drive annexation schematic diagram.

Fig. 4 is this climbing spoke wheel and Worm and worm-wheel gearing annexation schematic diagram.

Fig. 5 is that the ground running actuating unit circuit of this multifunctional electric wheelchair is controlled schematic diagram.

Fig. 6 is that the climbing actuating unit circuit of this multifunctional electric wheelchair is controlled schematic diagram.

Wherein: 1, vehicle frame 2, handlebar 3, steering front wheel 4, medicated cushion 5, back cushion 6, back bar 7, power set 8, walking trailing wheel 9, climbing spoke wheel 10, rear support leg 11, telescopic 12, bearing 13, main shaft 14, worm-gear speed reducer 15, climbing motor 16, spoke 17, chute 18, travelling wheel 19, buffer unit 20, telescope support 21, walk wheel shaft 22, pulley spindle 23, pulley 24, sleeve 25, framework 26, buffer disc 27, the first drivewheel 28, the first follower 29, the first power transmission shaft 30, the second drivewheel 31, the second follower 32, second driving shaft 33, the 3rd drivewheel 34, the 3rd follower.

The specific embodiment

Fig. 1 ~ 3rd, most preferred embodiment of the present utility model, be described further below in conjunction with 1 ~ 6 pair of this utility model of accompanying drawing.

With reference to accompanying drawing 1 ~ 3: multifunctional electric wheelchair, comprise vehicle frame 1, drive the climbing spoke wheel 9 of going downstairs on vehicle frame 1 and the power set that power is provided, climbing spoke wheel 9 is arranged with two, connect and be arranged on the outer both sides of vehicle frame 1 by main shaft 13 is symmetrical, drive mechanism is arranged on vehicle frame 1 bottom by fixed support, power set comprise battery, ground running actuating unit and climbing actuating unit, the handlebar 2 of ground running actuating unit difference connecting vehicle frame 1 front end and the walking trailing wheel 8 at vehicle frame 2 rear portions; The climbing actuating unit connects main shaft 13 by drive mechanism.Handlebar 2 tops are provided with brake gear, and steering front wheel 3 is installed in bottom, and brake gear connects the parking brake that the first drivewheel 27 places are provided with, and handlebar 2 is provided with permutator button downstairs.

Climbing spoke wheel 9 comprises six spokes 16 that are radial setting, every cylindrical shell setting that spoke 16 is inner hollow, the outer end of every spoke 16 has chute 17, in the end of spoke 16, installs and can drive the buffer unit 19 of travelling wheel 18 at chute 17 interior free-extensions.Buffer unit 19 is sleeved on the end of spoke 16, comprises telescope support 20, walks wheel shaft 21, pulley spindle 22 and pulley 23, and telescope support 20 both ends connect to walk respectively wheel shaft 21 and pulley spindle 22, and by walking wheel shaft 21 and pulley spindle 22 is installed travelling wheel 18 and pulleys 23.

Also be provided with medicated cushion 4 and back cushion 5 on vehicle frame 1, the rear support leg 10 of back cushion 5 and vehicle frame 1 is pivotable vehicle frame 1 rear that is connected to respectively, by hinge, realizes the folding of rear support leg 10 and back cushion 5 or stretches.Vehicle frame 1 rear is provided with back bar 6, and back bar 6 is by two of left and right telescopic 11 and the telescopic both sides that are arranged on back cushion 5 of adjusting bolt.

Fixed support comprises sleeve 24 and the framework 25 that is sleeved on main shaft 13 outsides, and sleeve 24 is divided into two sections of left and right, between two sections sleeves 24, by hexagonal-shaped frame 25, is connected and fixed, and framework 25 tops are fixedly connected with vehicle frame 1 bottom; Main shaft 13 stretches out respectively two sections sleeve 24 outer ends through two sections sleeves 24 and two ends, at main shaft 13 both ends, by bearing, two climbing spoke wheels 9 is installed; Fixing suit buffer disc 26, buffer disc 26 outer rims and pulley 23 sliding-contacts on the sleeve 24 of two climbing spoke wheel 9 inboards.Buffer disc 26 is the disk that circumference is provided with an inside recess.

In the middle of power set, by same battery walk earthward actuating unit and the climbing actuating unit power respectively, battery is furnished with charger, the ground running actuating unit comprises movable motor and traveling controller, movable motor is directly installed on steering front wheel 3 one sides, and by the connection handlebar, and connect handlebar 2 by traveling controller; The climbing actuating unit comprises climbing motor 15 and climbing controller, between climbing motor 15 and climbing controller, is provided with permutator downstairs, by traveling controller, connects handlebar 2.Ground running actuating unit and climbing actuating unit are arranged on respectively the rear of back cushion 5.

Drive mechanism is gear set transmission, comprise three grades of reduction gearing mechanisms that three groups of gears form, the primary speed-down transmission comprises that the first drivewheel 27 be arranged on climbing motor 15 output shafts and the first follower 28, the first drivewheel 27 places that are engaged with are provided with parking brake; The double reduction transmission comprises the second follower 31 that passes through coaxial mounted the second drivewheel 30 of the first power transmission shaft 29 and mesh with the second drivewheel 30 with the first follower 28; Three grades of deceleration transmission comprise with the second follower 31 and are fixedly connected with main shaft 13 middle parts by coaxial mounted the 3rd drivewheel 33 of second driving shaft 32 and the 3rd follower 34, the three followers 34 that are meshed with the 3rd drivewheel 33.

With reference to accompanying drawing 4: drive mechanism can also be Worm and worm-wheel gearing, comprises worm-gear speed reducer 14, and the outfan of worm-gear speed reducer 14 connects main shaft 13 middle parts, and worm-gear speed reducer 14 inputs connect the outfan of climbing motors 15.

Work process is as follows: this multifunctional electric wheelchair in use, be divided into ground running and upper two parts downstairs, when ground running, by the ground running start button on handlebar 2, by the walking battery, to movable motor, power, drive steering front wheel 3 by movable motor by traveling controller and rotate, rotate together thereby drive walking trailing wheel 8, finally drive vehicle frame 1 and realize freely walking.

While going downstairs on needs, press switching button downstairs, the climbing battery is to 15 power supplies of climbing motor, driving main shaft 13 by climbing motor 15 by drive mechanism rotates, driving two climbing spoke wheels 9 by main shaft 13 rotates, pulley 23 in the spoke 16 of two climbing spoke wheels 9 rotates along hard-wired buffer disc 26, when pulley 23 forwards in the recess of buffer disc 26, the travelling wheel 18 of this spoke 16 together with telescope support 20 to the interior retraction of spoke 16, along with being rotated further of climbing spoke wheel 9, pulley 23 in this spoke 16 skids off the recess of buffer disc 26, the travelling wheel 18 of this spoke 16 stretches out to spoke 16 outsides together with telescope support 20, by that analogy, can realize climbing spoke wheel 9 stretching on stair, also just realized electric wheelchair on stair up and down freely, the run trace of many spokes 16 is transformed into to straight line, avoided climbing the vertical tremor occurred when spoke wheel 9 collides with stairway step and rocking, increase stationarity and the walking fast of going downstairs on wheelchair.

The above, it is only preferred embodiment of the present utility model, be not this utility model to be done to the restriction of other form, any those skilled in the art may utilize the technology contents of above-mentioned announcement to be changed or be modified as the equivalent embodiment of equivalent variations.But every technical solutions of the utility model content that do not break away from, any simple modification, equivalent variations and the remodeling above embodiment done according to technical spirit of the present utility model, still belong to the protection domain of technical solutions of the utility model.

Claims

1. multifunctional electric wheelchair, comprise the climbing spoke wheel (9) that vehicle frame (1), drive vehicle frame (1) are above gone downstairs and the power set that power is provided, climbing spoke wheel (9) is arranged with two, connect and be arranged on the outer both sides of vehicle frame (1) by main shaft (13) is symmetrical, it is characterized in that: described drive mechanism is arranged on vehicle frame (1) bottom by fixed support, power set comprise ground running actuating unit and climbing actuating unit, the handlebar (2) of ground running actuating unit difference connecting vehicle frame (1) front end and the walking trailing wheel (8) at vehicle frame (2) rear portion; The climbing actuating unit connects main shaft (13) by drive mechanism.

2. multifunctional electric wheelchair according to claim 1, it is characterized in that: described climbing spoke wheel (9) comprises six spokes (16) that are radial setting, the cylindrical shell setting that every spoke (16) is inner hollow, the outer end of every spoke (16) has chute (17), in the end of spoke (16), the buffer unit (19) that can drive travelling wheel (18) free-extension in chute (17) is installed.

3. multifunctional electric wheelchair according to claim 2, it is characterized in that: described buffer unit (19) is sleeved on the end of spoke (16), comprise telescope support (20), walk wheel shaft (21), pulley spindle (22) and pulley (23), telescope support (20) both ends connect to walk respectively wheel shaft (21) and pulley spindle (22), and by walking wheel shaft (21) and pulley spindle (22), travelling wheel (18) and pulley (23) are installed.

4. multifunctional electric wheelchair according to claim 1, it is characterized in that: described fixed support comprises sleeve (24) and the framework (25) that is sleeved on main shaft (13) outside, sleeve (24) is divided into two sections of left and right, between two sections sleeves (24), by hexagonal-shaped frame (25), be connected and fixed, framework (25) top is fixedly connected with vehicle frame (1) bottom; Main shaft (13) stretches out respectively two sections sleeves (24) outer end through two sections sleeves (24) and two ends, at main shaft (13) both ends, by bearing, two climbing spoke wheels (9) is installed; Sleeve (24) upper fix inboard at two climbing spoke wheels (9) is set with buffer disc (26), buffer disc (26) outer rim and pulley (23) sliding-contact.

5. multifunctional electric wheelchair according to claim 4 is characterized in that: described buffer disc (26) is provided with the disk of an inside recess for circumference.

6. multifunctional electric wheelchair according to claim 1, it is characterized in that: described ground running actuating unit comprises movable motor and traveling controller, by traveling controller, connects handlebar (2); The climbing actuating unit comprises climbing motor (15) and climbing controller, between climbing motor (15) and climbing controller, is provided with permutator downstairs, by traveling controller, connects handlebar (2).

7. multifunctional electric wheelchair according to claim 1, it is characterized in that: described drive mechanism is gear set transmission, comprise three grades of reduction gearing mechanisms that three groups of gears form, the primary speed-down transmission comprises the first drivewheel (27) be arranged on climbing motor (15) output shaft and the first follower (28) be engaged with, and the first drivewheel (27) locates to be provided with parking brake; The double reduction transmission comprises the second follower (31) that passes through coaxial mounted the second drivewheel of the first power transmission shaft (29) (30) and mesh with the second drivewheel (30) with the first follower (28); Three grades of deceleration transmission comprise that with the second follower (31), by coaxial mounted the 3rd drivewheel (33) of second driving shaft (32) and the 3rd follower (34) that is meshed with the 3rd drivewheel (33), the 3rd follower (34) is fixedly connected with main shaft (13) middle part.

8. multifunctional electric wheelchair according to claim 1, it is characterized in that: described drive mechanism is Worm and worm-wheel gearing, comprise worm-gear speed reducer (14), the outfan of worm-gear speed reducer (14) connects main shaft (13) middle part, and worm-gear speed reducer (14) input connects the outfan of climbing motor (15).

9. multifunctional electric wheelchair according to claim 1, it is characterized in that: described vehicle frame (1) is provided with medicated cushion (4) and back cushion (5), the rear support leg (10) of back cushion (5) and vehicle frame (1) is pivotable vehicle frame (1) rear that is connected to respectively, by hinge, realizes the folding of rear support leg (10) and back cushion (5) or stretches.

10. according to the described multifunctional electric wheelchair of claim 1 or 9, it is characterized in that: described vehicle frame (1) rear is provided with back bar (6), and back bar (6) is by two telescopics in left and right (11) and the telescopic both sides that are arranged on back cushion (5) of adjusting bolt.