CN102697609A - Electric wheelchair and steering control device thereof - Google Patents
Electric wheelchair and steering control device thereof Download PDFInfo
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- CN102697609A CN102697609A CN201210150179XA CN201210150179A CN102697609A CN 102697609 A CN102697609 A CN 102697609A CN 201210150179X A CN201210150179X A CN 201210150179XA CN 201210150179 A CN201210150179 A CN 201210150179A CN 102697609 A CN102697609 A CN 102697609A
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- guide wheel
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Abstract
The invention discloses an electric wheelchair and a steering control device of the electric wheelchair. The electric wheelchair comprises a rack, a travel device, a seat device and the steering control device, wherein the rack comprises a front rack, a rear rack, a main rack and a seat rack, the travel device comprises a pair of front wheels and a rear wheel, and the steering control device comprises an enclosed flexible connecting piece with a certain intensity and three pairs of guide wheels capable of supporting and guiding the flexible connecting pipe; the flexible connecting piece is sheathed at a spindle of the rear wheel in a winding mode so as to drive the rear wheel to turn, the flexible connecting piece extending out of the spindle extends forwards to the first guide wheel, then extends forwards to the second guide wheel, and finally extends backwards to the third guide wheel, an operation handle is coaxially connected with the second guide wheel, the flexible connecting piece is driven by operating the operation handle so as to wind the second guide wheel, and the flexible connecting piece extending out from the third guide wheel horizontally extends to the third guide wheel on the opposite side. The electric wheelchair disclosed by the invention has the advantages of low cost, easiness in operation and flexibility and stability in steering.
Description
Technical field
The present invention relates to electric wheelchair, relate in particular to a kind of electric wheelchair that is used for the steering control device of electric wheelchair and has this steering control device.
Background technology
China is progressing into aging society, improves the life of elderly person quality, cares about the important topic that the old people becomes society.The old people has a considerable amount of old people's legs and feet inconvenience with advancing age, influences normal outdoor activity.Therefore, for the old people provides a kind of low cost, easy to operate and traveling walking-replacing tool stably, be an important ring of implementing love old people policy.Except the old people, the people with disability of lower limb disability or temporary transient handicapped patient also have same demand.
Wheelchair is a kind of important apparatus of helping the disabled, and also is the old people's of legs and feet inconvenience ideal walking-replacing tool.Yet common wheelchair generally needs to lean on occupant's self upper limbs force to drive, and is perhaps promoted to exercise by other people.
With respect to traditional push chairs, the power of electric wheelchair is not only applicable to the old people that gets old and weak, and is same, and it also is suitable for the people with disability of lower limb disability or the patient that can not walk.Electric wheelchair has energy-conserving and environment-protective, the energy supply reaches the advantage that adjustable-speed saves lastingly, also no longer relies on the manpower push-and-pull to advance.
Yet along with the raising (for example the 6-10 kilometer per hour) of electric wheelchair speed, its brake technology can adapt to the needs of running at high speed.But but there is certain deficiency in its steering.The steering of prior art electric wheelchair; Usually use electric steering system, electric steering system has increased the cost of wheelchair on the one hand, on the other hand; When electric steering system turns in 6-10 kilometer speed hourly; Therefore and be not suitable for weak old people or the patient takes the sensation that the occupant has is discontinuous (for example one one) is brought discomfort to the occupant.
Summary of the invention
To the problem that exists in the prior art; The object of the present invention is to provide a kind of cost low, be prone to control and turn to flexibly and the steering control device that is used for electric wheelchair stably, to overcome high and technical problem smoothness difference when turning to of prior art steering control device cost.
Another object of the present invention is to provide a kind of electric wheelchair with steering control device of the present invention.
The present invention realizes through following technical scheme:
A kind of electric wheelchair; It is characterized in that; Said electric wheelchair comprises support, running gear, seat unit and steering control device; Said support comprises fore-stock, after-poppet and is used to support the seat support of said seat unit; Said running gear comprises a pair of front-wheel that is arranged at said fore-stock and a trailing wheel that has electric driver that is arranged at said after-poppet, and said steering control device comprises: the closed flexible connecting member with certain intensity and be connected in a pair of first guide wheel of said support, a pair of second guide wheel and a pair of the 3rd guide wheel; Said flexible connecting member is supported and guiding by said a pair of first guide wheel, said a pair of second guide wheel and said a pair of the 3rd guide wheel, and said flexible connecting member also is wound in said trailing wheel rotating shaft to drive said rear-axle steering; Said a pair of first guide wheel extends out to said first guide wheel forward from the extended said flexible connecting member of said trailing wheel rotating shaft, behind said first guide wheel, extends to said second guide wheel forward; Said a pair of second guide wheel; Extand rearward to said the 3rd guide wheel from the extended said flexible connecting member of said second guide wheel; The operating grip that is connected with the said second guide wheel concentric; So that user rotates through said second guide wheel of operating operation handle drives, be wound in said second guide wheel along said operating grip travel direction to drive said flexible connecting member; Said a pair of the 3rd guide wheel extends horizontally to said the 3rd guide wheel of offside from the extended said flexible connecting member of said the 3rd guide wheel.
Beneficial effect of the present invention is, compares with prior art, and steering control device of the present invention and electric wheelchair of the present invention have the following advantages:
1, cost is low, and steering control device of the present invention adopts mechanical steering, combines through simple mechanical organ such as guide wheel, flexible connecting member, has reduced the cost of steering control device.
2, turn to steadily, steering control device of the present invention is pure frame for movement, also no longer includes incoherent sensation of electric steering system when therefore turning to, and has improved the stationarity that turns to.
3, motility and operation ease, when needs turn to, only need be according to daily habits, the operating grip of the operation left and right sides can be realized turning to, person's operation easy to use.
Description of drawings
Fig. 1 looks sketch map for the master of the electric wheelchair of first embodiment of the invention;
Fig. 2 is the schematic perspective view of the electric wheelchair of first embodiment of the invention;
Fig. 3 is the schematic perspective view of the steering control device of first embodiment of the invention;
Fig. 4 is the schematic perspective view of the steering control device of second embodiment of the invention;
Fig. 5 is the schematic perspective view of the steering control device of third embodiment of the invention;
Fig. 6 looks sketch map for the master of the electric wheelchair of second embodiment of the invention;
Fig. 7-Fig. 9 is the schematic perspective view of the electric wheelchair of second embodiment of the invention;
Figure 10 looks sketch map for the right side of the electric wheelchair of second embodiment of the invention;
Figure 11 is the schematic top plan view of the electric wheelchair of second embodiment of the invention;
Figure 12 is the hooking device sketch map of the electric wheelchair of second embodiment of the invention;
Figure 13 is the folded state sketch map of the electric wheelchair of second embodiment of the invention;
Wherein, the description of reference numerals of each element is following:
1 the near front wheel, 2 off-front wheels, 3 trailing wheels
4 flexible connecting members, 5 rotating shaft socket housings, 6 left-hand operation handles
7 fore-stock girders, 8 one main supports, 9 east side operation handles
10 medicated cushions, 11 cushion bracket, 12 backrests
13 handrails, 14 pedals, 15 back bracket
16 handrail rotating shafts, 17 handrail locating rods, 18 backrest connectors
19 lugs 20 are strengthened boss 21 brake lever
22 brake cable, 23 grip parts, 24 connecting rings
30 rear axis, 31 rear-wheel hubs, 32 back vent crossbeams
33 back vent vertical poles, 34 front support stands, 35 front-wheel connectors
36 accumulator, 40 guide wheels
41 guide wheels, 42 guide wheels, 43 guide wheels
44 guide wheels, 45 brace 46U shape framves
47 hold-down screws, 48 connecting plates, 49 hold-down screws
51 guide wheels, 52 guide wheels, 53 guide wheels
54 guide wheels, 55 connector 56U shape framves
57 hold-down screws, 58 connecting plates, 59 hold-down screws
60 connect vertical pole 61 front beams 62 front longitudinals
71 vertical poles are right to 73 vertical poles to 72 vertical poles
74 rotating shaft upper connectors 77 the 3rd cross bars (self-lock rod)
83 side plates, 87 hook top boards
89 from locking and hanging hook 90 rotating shafts
92 jointed shafts, 94 jointed shafts 95 connect axle
96 connect axle 97 connects axle 98 jointed shafts
99 axle center
The specific embodiment
The exemplary embodiments that embodies characteristic of the present invention and advantage will be described in detail in following explanation.Be understood that the present invention can have various variations on various embodiment, its neither departing from the scope of the present invention, and explanation wherein and accompanying drawing be the usefulness of being used as explanation in itself, but not in order to restriction the present invention.
The electric wheelchair of the embodiment of the invention, the electric wheelchair steering control device with embodiment of the invention.
In this description, about be to be as the criterion with the left and right directions that the occupant is sitting on the wheelchair, occupant's left hand one side is a left side, the right hand one side be the right side, the occupant towards a side be before, after an occupant side dorsad is.
The electric wheelchair of the embodiment of the invention; Can divide into four major parts according to function, promptly support the support of whole electric wheelchair, directly contact and support the seat unit of user parts of body, traveling and the running gear of brake and the steering control device that the realization electric wheelchair goes and turns to of realization electric wheelchair with user.
Briefly, the electric wheelchair of the embodiment of the invention is the three-wheel wheelchair, and running gear comprises trailing wheel 3 and front-wheel, and front-wheel comprises the near front wheel 1 and off-front wheel 2; Seat unit mainly comprises medicated cushion 10, backrest 12, handrail 13 and pedal 14; Support mainly comprises fore-stock, the after-poppet that is used to connect trailing wheel, seat support that is used for each parts of supporting chair device and the main support that is connected fore-stock and after-poppet that is used to connect front-wheel; Steering control device mainly comprises left and right sides operating grip 6,9, flexible connecting member 4 and the many groups guide wheel that is used to support or twine flexible connecting member 4.
Below specifically introduce the electric wheelchair of first embodiment of the invention:
One, running gear
As depicted in figs. 1 and 2, the electric wheelchair of first embodiment of the invention, trailing wheel 3 is a drivewheel in its running gear, the near front wheel 1 is a driven pulley with off-front wheel 2, and brake gear is to brake with off-front wheel 2 through control the near front wheel 1.
The near front wheel 1 is provided with off-front wheel 2 and vertical direction at an angle, to increase the riding stability of electric wheelchair.3 of trailing wheels are provided with motor and go to drive trailing wheel 3 in the vertical direction setting in the wheel hub 31 of trailing wheel 3, and then drive electric wheelchair and go.
Brake gear comprises brake lever 21, brake cable 22 and the brake assemblies (not shown) of all installing at the near front wheel 1 and off-front wheel 2; Brake assemblies is brake assemblies such as bicycle or the employed brake rubber block of motorcycle, brake rim or brake block for example; Brake assemblies is connected on the brake lever 21 through brake cable 22; Brake lever 21 is fixed on the below of left and right sides operating grip 6,9 leading sections through connecting ring 24, and when needs braked, the occupant held brake lever 21; With its leading section direction rotation of operating grip 6,9 to the left and right, can realize brake.The end of left and right sides operating grip 6,9 also is arranged with grip part 23.
Two, support
In the present embodiment, be used to connect the fore-stock of front-wheel, comprise fore-stock girder 7, a pair of connection vertical pole 60, front beam 61 and front longitudinal 62, preferred, fore-stock girder 7, connection vertical pole 60, front beam 61 and front longitudinal 62 are all in same plane; The after-poppet that is used to connect trailing wheel 3 comprises trailing wheel rotating shaft, rotating shaft socket housing 5, back vent crossbeam 32 and back vent vertical pole 33; And the seat support that is used for each parts of supporting chair device comprises cushion bracket 11, back bracket 15, handrail rotating shaft 16 and backrest connector 18; And the main support that connects fore-stock and after-poppet is an one main support 8.
One main support 8 can be selected the thicker circle of diameter or square pipe, bar or oval tubing and bar for use, and to strengthen the electric wheelchair integral intensity, one main support 8 also can be one-body molded with fore-stock.As shown in Figure 1, one main support 8 is angled with level, and this angle for example is the 20-30 degree.
As shown in Figure 2, the rear end of the connection vertical pole 60 of fore-stock is fixedly connected on the down either side of (for example welding or riveted joint) one main beam 8; The front end of two connection vertical poles 60 is welded in the fore-stock girder 7 of U-shaped; The a pair of front longitudinal 62 of the inboard fixed connection of the big U-shaped of fore-stock girder 7; The side of each front longitudinal 62 and fore-stock girder 7 forms a little U-shaped opening, and the near front wheel 1 promptly is arranged in the said little U-shaped opening with off-front wheel 2.Be fixedly connected with front beam 61 between the end of two front longitudinals 62; The place ahead of front beam 61 is hinged with pedal 14, for example through hinge pedal 14 is articulated in front beam 61.The quadrilateral frame that fore-stock girder 7, two front longitudinals 62 and front beam 61 are surrounded; Can be used for placing the accumulator 36 of electric wheelchair; The line of the motor in accumulator 36 and the rear-wheel hub 31 can be along fore-stock, main support and after-poppet cabling; If fore-stock, main support and after-poppet are tubing, then also can be in the tube chamber of tubing cabling.
The seat support of the electric wheelchair of the embodiment of the invention will be introduced with seat unit.
After-poppet comprises trailing wheel rotating shaft, rotating shaft socket housing 5, back vent crossbeam 32 and back vent vertical pole 33; The trailing wheel rotating shaft is arranged in the rotating shaft socket housing 5; The top of rotating shaft socket housing 5 is fixedly connected on the rear end of one main beam 8; The bottom of the trailing wheel rotating shaft in the rotating shaft socket housing 5 is fixedly connected on the top middle position of back vent crossbeam 32; The below at back vent crossbeam 32 two ends is fixedly connected two back vent longerons 33 respectively, and trailing wheel 3 promptly is connected between the two back vent longerons 33, and the trailing wheel rotating shaft of trailing wheel 3 is connected in the bottom of back vent longeron 33.Rotating shaft socket housing 5, back vent crossbeam 32 and back vent vertical pole 33 are in same plane; This plane has the sweptback angle of inclination less than 30 degree; Promptly become angle less than 30 degree with vertical direction; Also be that rotating shaft socket housing 5 has a sweptback angle of inclination less than 30 degree, preferred, this angle of inclination is 15 degree.
Three, seat unit and seat support
As depicted in figs. 1 and 2; The electric wheelchair of first embodiment of the invention; Its seat unit mainly comprises medicated cushion 10, backrest 12, handrail 13 and pedal 14; And seat support comprises cushion bracket 11, back bracket 15, handrail rotating shaft 16, handrail locating rod 17, backrest connector 18 and front support stand 34, and strengthens accessories such as boss 20 and lug 19.
Wherein, medicated cushion 10 is square or rectangular, and that can take out is installed in the cushion bracket 11.The front end of cushion frame 11 below is formed with and is fixedly connected (for example welding) in the through hole of two lugs, 19, two lugs 19 inverted U-shaped front support stand 34 is arranged.As depicted in figs. 1 and 2, the U-shaped two ends of front support stand 34 are connected with the U-shaped two ends of fore-stock girder 7.The bottom, rear end of cushion bracket 11 is fixedly connected on the front end of one main beam 8.Therefore, a contact point of two of two lugs 19 contact points and one main beam 8 altogether three contact points formed stable support to cushion bracket 11.
Back bracket 15 is connected in cushion bracket 11 through backrest connector 18; An end that is connected with cushion bracket 11 at backrest connector 18 is provided with reinforcement boss 20; To strengthen the bonding strength between cushion bracket 11 and the backrest connector 18, the reinforcement boss 20 that extends internally can also play the supporting role to medicated cushion 10 simultaneously.
14 of pedals are articulated in front beam 61, can pack up and put down.
The seat unit of the electric wheelchair of the embodiment of the invention, have simple in structure, realize and the low advantage of cost easily, effectively reduced the cost of whole electric wheelchair; Simultaneously, electric wheelchair of the present invention also can be the seat unit of high end configuration, and medicated cushion, backrest and handrail can be one-body molded, and then seat unit and seat support also can be one-body molded.
Four, steering control device
The steering control device of the electric wheelchair of the embodiment of the invention can be but is not limited to following three kinds of embodiments, that is to say that steering control device of the present invention can be but is not limited to following three embodiment:
The steering control device of first embodiment:
As shown in Figure 3, the steering control device of first embodiment of the invention mainly comprises four groups of guide wheels and supports the flexible connecting member 4 with guiding by these four groups of guide wheels, and flexible connecting member 4 is closed and have certain intensity.Flexible connecting member 4 flexible windings but can not flexiblely stretch, preferably steel wire rope also can be nylon material etc.The diameter of steel wire rope for example can be 2-6mm.Flexible connecting member 4 is wrapped in the trailing wheel rotating shaft, rotates and drives trailing wheel 3 and turn to through driving the trailing wheel rotating shaft.
As shown in Figure 3, four groups of guide wheels are respectively guide wheel 41,51, guide wheel 42,52, guide wheel 43,53 and guide wheel 44,54; All fluted on the circumference of each guide wheel flexible connecting member 4 is played support and guide effect.
The bottom of rotating shaft socket housing 5 also is the left and right sides, top, position that flexible connecting member 4 is twined in the trailing wheel rotating shaft, is fixedly connected with flaky brace 45,55 respectively, is fixedly connected guide wheel 41,51 on the brace 45,55 respectively; Behind guide wheel 41,51, extend out to said guide wheel 42,52 forward from the extended flexible connecting member 4 of trailing wheel rotating shaft.
As shown in Figure 3; The U-shaped frame 46,56 that is fixedly connected guide wheel 42,52 and guide wheel 44,54 is fixedly connected on fore-stock girder 7 rear sides; Two upper surfaces of each U-shaped frame all can be used for being fixedly connected guide wheel with two lower surfaces, and guide wheel 42,52 and guide wheel 44,54 in the present embodiment all are the upper surfaces that are arranged at wherein.Guide wheel 41,51 extended flexible connecting members 4 extend to guide wheel 43,53 forward behind guide wheel 42,52.
As shown in Figure 3; The connecting plate 48,58 that is fixedly connected guide wheel 43,53 is fixedly connected on the inboard of fore-stock girder 7; With left operating grip 6 of being connected with of guide wheel 43,53 concentrics and right operating grip 9; Operating grip 6,9 travel directions are wound in guide wheel 43,53 or leave guide wheel 43,53 along the left and right sides with drive flexible connecting member 4 so that user is through operation left and right sides operating grip 6,9, and then drive trailing wheel rotating shaft rotation, realize turning to of electric wheelchair.
Behind guide wheel 44,54, extend horizontally to the guide wheel 54,44 of offside from guide wheel 43,53 extended flexible connecting members 4.
Except that guide wheel 43,53 vertically was provided with, guide wheel 41,51, guide wheel 42,52 and guide wheel 44,54 all can be horizontally disposed with.The position that is provided with each guide wheel among Fig. 3; The winding direction of flexible connecting member 4 on guide wheel both can be the order according to guide wheel 41, guide wheel 42, guide wheel 43, guide wheel 44, guide wheel 54, guide wheel 53, guide wheel 52, guide wheel 51, also can according to the order of guide wheel 41, guide wheel 44, guide wheel 43, guide wheel 42, guide wheel 52, guide wheel 53, guide wheel 54, guide wheel 51.
For preventing that flexible connecting member 4 from skidding with respect to guide wheel 43,53, the front end of guide wheel 43,53 is respectively arranged with the hold- down screw 47,57 of fixing flexible connector 4.Be to skid equally, also be provided with the hold- down screw 49,59 of fixing flexible connector 4 in the trailing wheel rotating shaft for preventing.
The steering control device of second embodiment:
Shown in figure 12, the steering control device of second embodiment of the invention, its guide wheel and flexible connecting member be provided with that all the steering control device with first embodiment is identical.Different with the steering control device of first embodiment is; Flexible connecting member 4 is not directly to be set in the trailing wheel rotating shaft, but in the trailing wheel rotating shaft first sheathed guide wheel 40, the through hole 50 shown on the guide wheel 40 is used for fixing the trailing wheel rotating shaft; Flexible connecting member 4 is wrapped on the guide wheel 40; Can make the drive of 4 pairs of trailing wheel rotating shafts of flexible connecting member more reliable, preferred, flexible connecting member 4 can twine a circle on guide wheel 40.
For preventing that flexible connecting member 4 from skidding with respect to guide wheel 40, the front end of guide wheel 43,53 is respectively arranged with the hold- down screw 49,59 of fixing flexible connector 4 to prevent flexible connecting member 4.
The steering control device of the 3rd embodiment:
Shown in figure 13, the steering control device of third embodiment of the invention, its guide wheel 40, guide wheel 42,52, guide wheel 43,53, guide wheel 44,54 and flexible connecting member 4 be provided with that all the steering control device with second embodiment is identical.Different with the steering control device of second embodiment is, has omitted guide wheel 41,51, directly extends to guide wheel 42,52 from guide wheel 40 extended flexible connecting members 4, and present embodiment can make the structure of steering control device further simplify.
In the time of in the electric wheelchair driving process, need turning to, as turn left, then need pulled backwards left side operating grip 6; Promote right operating grip 9 forward; Make flexible connecting member 4 along the moving clockwise of guide wheel 43, and move, thereby driving the trailing wheel rotating shaft moves clockwise with what overlook along the counter clockwise direction of guide wheel 53; Trailing wheel 3 front ends are rotated left to right rear end, thus realize electric wheelchair turn left to.As turn right; Then need promote left operating grip 6 forward, the right operating grip 9 of pulled backwards makes flexible connecting member 4 move along the counter clockwise direction of guide wheel 43; And moving clockwise along guide wheel 53; Thereby drive the counter clockwise direction motion of trailing wheel rotating shaft to overlook, make trailing wheel 3 front ends left the rear end to right rotation, thereby realize electric wheelchair turn right to.Above-mentioned about mode of operation when changeing, consistent with people's operating habit, and simple to operate, can realize very flexibly turning to, can not produce incoherent sensation, improved ride quality.And the steering control device of various embodiments of the present invention all has low, the easy realization of cost and maintenance is easy to advantage.
Below specifically introduce the electric wheelchair of second embodiment of the invention:
Present embodiment is compared first embodiment, and the electric wheelchair that mainly is present embodiment is a kind of folding electric wheelchair.Its folding characteristic; Mainly be main support and seat support collapsible in the support; In addition, also increased the hooking device of the seat unit that is used to lock, remaining seat unit, running gear and steering control device etc. all can be identical with the electric wheelchair of first embodiment.Below specifically introduce seat support, main support and the hooking device of the electric wheelchair of present embodiment.
One, seat support
Like Fig. 6-shown in Figure 13; In the present embodiment; Backrest connector 18 no longer is direct welding with the annexation of back bracket 15, but back bracket 15 is articulated in backrest connector 18, so that back bracket 15 can be to the direction rotation of cushion bracket 11 when folding.Preferably, can wear jointed shaft 98 at the end of backrest connector 18, back bracket 15 is articulated in rotating shaft 98, and limit back bracket through the backstop locating part and opening the continued rotation that puts in place through lug.
In addition; Front support stand 34 also no longer is to be directly welded in fore-stock girder 7; But two front-wheel connectors 35 vertically are set respectively in two U-shaped ends of fore-stock girder 7, be hinged on two U-shaped ends of front support stand 34 through jointed shaft 92 top of front-wheel connector 35 respectively.And, also no longer be the welding relation between bracing frame 34 and the lug 19, but bracing frame 34 can rotate in the connecting hole of lug 19.
The annexation of seat support and main support also changes, and will after having introduced main support, introduce.
Two, main support
In the present embodiment, main support is divided into two groups, and one group is inboard following longeron 80, another group be the outside by vertical pole to 72, the 73 hinged vertical pole groups that form, it is hinged and intersect up and down that the vertical pole in following longeron 80 and the vertical pole group passes through self-lock rod 77 to 72.Following longeron 80 can be selected the material identical with the one main support of last embodiment 8 for use, and just the diameter of its material can be slightly less than one main support 8.
The front end of following longeron 80 is articulated in cushion bracket 11; The rear end then is articulated in rotating shaft socket housing 5; Position at rotating shaft socket housing 5 near the bottom; Symmetrically be provided with connector 81 under the countershaft, the top of connector 81 is the symmetrical rotating shaft upper connector 74 that is used for connection lengthwise pole pair 73 that is provided with equally under the rotating shaft, and the below of connector 81 then is the brace 45,55 that is symmetrical set under the rotating shaft.
Pass through to connect axle 97 hinged longerons 80 down under the rotating shaft on the connector 81.And on the rotating shaft upper connector 73, then through connecting axle 96 hinged vertical poles to 73 rear end.
The front end of following longeron 80 then is articulated in the tail end of cushion bracket 11 through jointed shaft 94, jointed shaft 94 also can be to connect axle.
Vertical pole is articulated in vertical pole to 72 to 73 front ends through connecting axle 95; At vertical pole to 72 middle part; Be articulated in down longeron 80 through self-lock rod 77; Vertical pole then is fixedly connected on the fore-stock rear end respectively to the front end of 72 two vertical poles vertical pole is to 71 two vertical poles, and vertical pole is to be fixedly connected on fore-stock girder 7 to 71 front end.
Three, hooking device
In the present embodiment, hooking device is to be used for when electric wheelchair is in user mode, and cushion bracket 11 is fixed in sturdy following longeron 80, the unsettled phenomenon in order to avoid seat unit has been in operation.
Like Fig. 9-shown in Figure 13; In the position of the rear end of cushion bracket central authorities, just horizontally extending backward extension device is welded in the top of jointed shaft 94 positions; Extension device can be made up of with 83 of biside plates a top board 82; Side plate 83 ends of extension device are equipped with rotating shaft 90, pivotablely on the two axial ends of rotating shaft 90 are provided with a pair of roughly S-shapedly from locking and hanging hook 89, a pair ofly are fixed together by top board 87 from locking and hanging hook 89.From locking and hanging hook 89 during, be to be locked in following longeron 80 and vertical pole on the self-lock rod 77 between 72 the vertical pole at lock-out state.
Outside the above-mentioned supporting structure, therefore left and right sides operating grip 6,9 can also can fold around 99 rotations of the axle center of guide wheel 43,53, and handrail 13 can be rotated around handrail rotating shaft 16, thereby also can fold.
The folding process of the electric wheelchair of second embodiment of the invention is following:
Before folding, remove the lock-out state from locking and hanging hook 89 of hooking device earlier.
Again the axle center 99 of left and right sides operating grip 6,9 around guide wheel 43,53 rotated backward, fold.Handrail 13, folds to the rotation of backrest 12 directions around handrail rotating shaft 16, back bracket 15 is rotated forward around jointed shaft 98 fold.
Then; Main support is folded, and in fact, main support is former and later two four-bar linkage structures; Last quadric chain is formed by jointed shaft 94 and 77 of the self-lock rods under jointed shaft 92, front support stand 34 and lug 34 formed pin joints, the cushion bracket 11; Upwards spur cushion rack 11, make front support stand 34 and cushion bracket 11 rotate, form folded state shown in figure 13 to the direction that is parallel to fore-stock girder 7.
Back one quadric chain is by connecting axle 95, connect axle 96, connecting axle 97 and 77 of self-lock rods form; Under the drive of the power that upwards spurs cushion rack 11; Make vertical pole also rotate with after-poppet to the direction that is parallel to fore-stock girder 7 to 73; Trailing wheel 3 is recovered between the near front wheel 1 and the off-front wheel 2, forms folded state shown in figure 13.
By on can know that the electric wheelchair of second embodiment of the invention has folding advantage, practice thrift to place the land used of wheelchair.And, the electric wheelchair of second embodiment of the invention, its folding operation is convenient, and folding back occupation space obviously reduces.
Beneficial effect of the present invention is, compares with prior art, and steering control device of the present invention and electric wheelchair of the present invention have the following advantages:
1, cost is low, steering control device of the present invention, and its steering adopts mechanical steering, combines through simple mechanical organ such as guide wheel, flexible connecting member, has reduced the cost of steering control device.
2, turn to steadily, steering control device of the present invention is pure frame for movement, also no longer includes incoherent sensation of electric steering system when therefore turning to, and has improved the stationarity that turns to.
3, motility and operation ease, when needs turn to, only need be according to daily habits, the operating grip of the operation left and right sides can be realized turning to, person's operation easy to use.
Technical scheme of the present invention is disclosed as above by preferred embodiment.Those skilled in the art should recognize change and the retouching of under the situation that does not break away from appended scope of the present invention that claim disclosed of the present invention and spirit, being done, and all belong within the protection domain of claim of the present invention.
Claims (10)
1. electric wheelchair; It is characterized in that; Said electric wheelchair comprises support, running gear, seat unit and steering control device; Said support comprises fore-stock, after-poppet and is used to support the seat support of said seat unit that said running gear comprises a pair of front-wheel that is arranged at said fore-stock and be arranged at a trailing wheel that has electric driver of said after-poppet that said steering control device comprises:
Closed flexible connecting member and be connected in a pair of first guide wheel of said support, a pair of second guide wheel and a pair of the 3rd guide wheel with certain intensity;
Said flexible connecting member is supported and guiding by said a pair of first guide wheel, said a pair of second guide wheel and said a pair of the 3rd guide wheel, and said flexible connecting member also is wound in said trailing wheel rotating shaft to drive said rear-axle steering;
Said a pair of first guide wheel extends out to said first guide wheel forward from the extended said flexible connecting member of said trailing wheel rotating shaft, behind said first guide wheel, extends to said second guide wheel forward;
Said a pair of second guide wheel; Extand rearward to said the 3rd guide wheel from the extended said flexible connecting member of said second guide wheel; The operating grip that is connected with the said second guide wheel concentric; So that user rotates through said second guide wheel of operating operation handle drives, be wound in said second guide wheel along said operating grip travel direction to drive said flexible connecting member;
Said a pair of the 3rd guide wheel extends horizontally to said the 3rd guide wheel of offside from the extended said flexible connecting member of said the 3rd guide wheel.
2. electric wheelchair as claimed in claim 1 is characterized in that said steering control device also comprises a pair of four guide idler, and said four guide idler is fixedly connected on the position of said after-poppet top near said trailing wheel rotating shaft; Behind said four guide idler, extend out to said first guide wheel forward from the extended said flexible connecting member of said trailing wheel rotating shaft;
Said second guide wheel vertically is provided with; Said first guide wheel and said four guide idler are horizontally disposed with; Said the 3rd guide wheel is perpendicular to the said second guide wheel setting, and said the 3rd guide wheel is positioned at said first guide wheel below, and said first guide wheel and said the 3rd guide wheel are arranged on the same U-shaped frame.
3. electric wheelchair as claimed in claim 2; It is characterized in that; Said trailing wheel rotating shaft is provided with fixing first hold-down screw of said flexible connecting member to prevent that said flexible connecting member from skidding with respect to said trailing wheel rotating shaft, and said second guide wheel is provided with fixing first hold-down screw of said flexible connecting member to prevent that said flexible connecting member from skidding with respect to said second guide wheel.
4. electric wheelchair as claimed in claim 3 is characterized in that, said trailing wheel is the trailing wheel that is provided with electric driver.
5. electric wheelchair as claimed in claim 2 is characterized in that, said flexible connecting member is the steel wire rope of 2-6mm.
6. electric wheelchair as claimed in claim 2 is characterized in that, main support that said main support is formed as one or folding main support.
7. electric wheelchair as claimed in claim 6 is characterized in that, said trailing wheel rotating shaft has the sweptback angle of inclination less than 30 degree.
8. electric wheelchair as claimed in claim 3 is characterized in that, said angle of inclination is 15 degree.
9. a steering control device that is used for electric wheelchair is characterized in that, said electric wheelchair comprises support, running gear, seat unit and steering control device, and said steering control device comprises:
Closed flexible connecting member and be connected in a pair of first guide wheel of the support of said electric wheelchair, a pair of second guide wheel and a pair of the 3rd guide wheel with certain intensity;
Said flexible connecting member is supported and guiding by said a pair of first guide wheel, a pair of second guide wheel and a pair of the 3rd guide wheel, and said flexible connecting member also is wound in the trailing wheel rotating shaft of trailing wheel of said electric wheelchair to drive said rear-axle steering;
Said a pair of first guide wheel extends out to said first guide wheel forward from the extended said flexible connecting member of said trailing wheel rotating shaft, behind said first guide wheel, extends to said second guide wheel forward;
Said a pair of second guide wheel; Extand rearward to said the 3rd guide wheel from the extended said flexible connecting member of said second guide wheel; The operating grip that is connected with the said second guide wheel concentric; So that user rotates through said second guide wheel of operating operation handle drives, be wound in said second guide wheel along said operating grip travel direction to drive said flexible connecting member;
Said a pair of the 3rd guide wheel extends horizontally to said the 3rd guide wheel of offside from the extended said flexible connecting member of said the 3rd guide wheel.
10. the steering control device that is used for electric wheelchair as claimed in claim 9 is characterized in that said steering control device also comprises a pair of four guide idler, and said four guide idler is fixedly connected on the position of said after-poppet top near said trailing wheel rotating shaft; Behind said four guide idler, extend out to said first guide wheel forward from the extended said flexible connecting member of said trailing wheel rotating shaft; Said second guide wheel vertically is provided with; Said first guide wheel and said four guide idler are horizontally disposed with; Said the 3rd guide wheel is perpendicular to the said second guide wheel setting, and said the 3rd guide wheel is positioned at said first guide wheel below, and said first guide wheel and said the 3rd guide wheel are arranged on the same U-shaped frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210150179.XA CN102697609B (en) | 2012-05-15 | 2012-05-15 | Electric wheelchair and steering control device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210150179.XA CN102697609B (en) | 2012-05-15 | 2012-05-15 | Electric wheelchair and steering control device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102697609A true CN102697609A (en) | 2012-10-03 |
| CN102697609B CN102697609B (en) | 2015-04-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210150179.XA Expired - Fee Related CN102697609B (en) | 2012-05-15 | 2012-05-15 | Electric wheelchair and steering control device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102697609B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103126828A (en) * | 2013-02-16 | 2013-06-05 | 周兴强 | Portable folding wheelchair |
| CN104274285A (en) * | 2014-09-27 | 2015-01-14 | 吴玲玲 | Wheel chair |
| CN105434119A (en) * | 2014-09-01 | 2016-03-30 | 特瑞国际开发有限公司 | Dual-drive wheelchair |
| CN108136820A (en) * | 2015-05-04 | 2018-06-08 | 奥比斯轮胎公司 | It is not in the mood for wheel assembly |
| CN109157346A (en) * | 2018-10-10 | 2019-01-08 | 安维车件(厦门)有限公司 | One kind proposing line apparatus and its utilization |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003339780A (en) * | 2002-05-24 | 2003-12-02 | Fes:Kk | Front drive type wheelchair |
| CN201879925U (en) * | 2010-11-02 | 2011-06-29 | 金祥曙 | Electric wheelchair |
| CN202682211U (en) * | 2012-05-15 | 2013-01-23 | 博尔塔拉蒙古自治州万力源科技开发有限责任公司 | Electric wheelchair and steering control device thereof |
-
2012
- 2012-05-15 CN CN201210150179.XA patent/CN102697609B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003339780A (en) * | 2002-05-24 | 2003-12-02 | Fes:Kk | Front drive type wheelchair |
| CN201879925U (en) * | 2010-11-02 | 2011-06-29 | 金祥曙 | Electric wheelchair |
| CN202682211U (en) * | 2012-05-15 | 2013-01-23 | 博尔塔拉蒙古自治州万力源科技开发有限责任公司 | Electric wheelchair and steering control device thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103126828A (en) * | 2013-02-16 | 2013-06-05 | 周兴强 | Portable folding wheelchair |
| CN105434119A (en) * | 2014-09-01 | 2016-03-30 | 特瑞国际开发有限公司 | Dual-drive wheelchair |
| CN105434119B (en) * | 2014-09-01 | 2017-06-30 | 特瑞国际开发有限公司 | Dual drive wheelchair |
| CN104274285A (en) * | 2014-09-27 | 2015-01-14 | 吴玲玲 | Wheel chair |
| CN108136820A (en) * | 2015-05-04 | 2018-06-08 | 奥比斯轮胎公司 | It is not in the mood for wheel assembly |
| CN109157346A (en) * | 2018-10-10 | 2019-01-08 | 安维车件(厦门)有限公司 | One kind proposing line apparatus and its utilization |
| CN109157346B (en) * | 2018-10-10 | 2024-02-27 | 安维车件(厦门)有限公司 | Wire lifting device and wheelchair using same |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102697609B (en) | 2015-04-22 |
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