CN107280873B - Electric drive headstock device for wheelchair - Google Patents
Electric drive headstock device for wheelchair Download PDFInfo
- Publication number
- CN107280873B CN107280873B CN201610213589.2A CN201610213589A CN107280873B CN 107280873 B CN107280873 B CN 107280873B CN 201610213589 A CN201610213589 A CN 201610213589A CN 107280873 B CN107280873 B CN 107280873B
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- Prior art keywords
- wheelchair
- front fork
- handlebar
- sleeve
- links
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Handcart (AREA)
- Rehabilitation Tools (AREA)
Abstract
The invention discloses an electric drive headstock device for a wheelchair, which comprises a headstock and a connecting device for connecting the headstock, wherein the headstock comprises a headstock shell, a handlebar and a driving hub, a front fork weldment is sealed on the inner side of the headstock shell, an opening groove at the bottom of the front fork weldment is connected with a rotating main shaft for controlling a driving hub to move forward, a driving rod arranged at the top of the front fork weldment is connected with the handlebar through a height adjusting button, a battery assembly locked through a fastener is embedded in a hollow part at one side of the front fork weldment, and the other side of the front fork weldment is connected with a steering seat through a bonding plate.
Description
Technical Field
The invention relates to a walking tool for the disabled, in particular to an electric driving head which can facilitate the wheelchair to move forward.
Background
Along with the development of social welfare industry and the improvement of the living standard of people, the disabled people increasingly use the rehabilitation wheelchair, the wheelchair is an indispensable riding tool for lower limb disabled people and old people with weak people, the trouble of caring people is saved, the wheelchair is convenient to transfer in a hospital and can conveniently move in real life, the wheelchair on the market is mainly divided into a folding manual wheelchair and an unfolding manual wheelchair, the folding manual wheelchair is generally composed of a wheelchair frame, wheels, a brake device and a seat rest, the wheelchair can be flexibly folded in actual use, the wheelchair is convenient to store, the wheelchair is as same as the unfolding manual wheelchair, the advancing power is required to depend on a hand rim fixed on wheels, the aim of advancing or retreating is achieved by manipulating the hand rim, the hand rim is usually made of stainless steel materials, the palm of a patient directly acts on a smooth hand wheel, friction force is small, driving is laborious, the problem is solved, the problem that the outer layer of the hand rim wraps a rubber sleeve is increased, the surface of the wheelchair is severely injured compared with a severe, and the hand is difficult to wear the surface of a rubber sleeve, and the palm is severely injured in daily use.
In summary, aiming at the defects of the electric wheelchair and the manual wheelchair in the prior art, an electric driving headstock device for the wheelchair is particularly needed to solve the defects in the prior art.
Disclosure of Invention
Aiming at the defects of the prior art that the wheelchair is in use and has great influence in the actual use, the invention provides the electric drive headstock device for the wheelchair, which has the advantages of simple structure, novel design, combination of the organic wheelchair and the manual wheelchair, convenience for the disabled to go out, enhancement of the practical performance of use and capability of solving the defects of the prior art.
In order to achieve the above object, the technical scheme of the present invention is as follows:
the utility model provides an electric drive headstock device for wheelchair, including headstock and the linking device who connects the wheelchair, the headstock includes the car shell, the handlebar, the drive wheel hub, the inboard of car shell seals has the front fork weldment, the open slot of front fork weldment bottom links up the rotation main shaft that controls drive wheel hub forward motor, the actuating lever of front fork weldment top installation links up the handlebar through the altitude mixture control button, front fork weldment one side hollow portion embedding has the battery pack who locks through the fastener, the opposite side of front fork weldment links up the steering seat through the laminating board, the connecting pipe that the steering seat below set up links up the support piece that makes the locomotive steadily place through elasticity turnover shaft, steering seat surface mounting's rectangle handle links up the regulating plate, the fixed slot at steering seat top is evenly arranged to the both sides of regulating plate, the recess that the regulating plate links up the steering seat through the expansion pin that the base was seted up to the base, the face of cylinder of bolt links up the regulating plate surface setting up the circular arc face of sleeve plate, steering post pole is installed to the inside hollow portion of steering seat.
The connecting device comprises a sealing cavity for connecting the adjusting plate and the pendant component, a rolling gear arranged on the surface of the pendant component is arranged in the sealing cavity, hoop fixing pieces are arranged at two ends of the pendant component, first hoops for fixing the wheelchair and capable of flexibly overturning are arranged on the surfaces of the hoop fixing pieces, and locking switches are arranged on the surfaces of the first hoops.
The connecting device comprises a connecting chuck connected with an adjusting plate, wherein the connecting chuck is fixed with a mounting sleeve, a second positioning hole formed in the surface of the mounting sleeve is connected with a fixing pin arranged on the surface of a sleeve, the sleeve is connected with a cross beam through a reinforcing rib, telescopic rods fixed through screws are arranged on two sides of the cross beam, and a second hoop connected with a wheelchair is arranged on the surface of the telescopic rods.
Further, quick adjustment head of handlebar link up the pivot of turning over, the both ends of handlebar are provided with the handle, the surface of handlebar is provided with the accuse display, the manual brake is installed to one side of one of them handle, wherein another handle sets up to drive button, the switch of backing a car is installed to one side of drive button, the inside of instructing the accuse display is provided with the controller, the surface mounting of instructing the accuse display has the display screen, the below of display screen is provided with adjustment button.
Further, the surface of the driving hub is provided with a tire, the surface of the tire is provided with anti-skid patterns, and a mud guard is arranged above the tire.
Furthermore, the headstock and the connecting device are detachably connected.
Further, the shape of the pendant component is U-shaped.
Further, the cross beam and the sleeve are vertically arranged.
The beneficial effects of the invention are as follows: the novel wheelchair has the advantages of simple structure, novel creation, convenient use of the aged or disabled people, flexible disassembly and assembly, excellent expansibility, capability of improving the life quality of the aged or disabled people, capability of controlling the wheelchair at will, exquisite appearance, convenient operation, excellent quality, long service life, novel design, good innovation scheme and wide market popularization prospect.
Drawings
The invention is described in detail below with reference to the attached drawing figures and the detailed description:
fig. 1 is a schematic diagram of an explosive structure according to the present invention.
Fig. 2 is a schematic perspective view of fig. 1 of the present invention.
Fig. 3 is a schematic side view of the present invention.
Fig. 4 is a schematic view of a connection structure of a hanging member according to the present invention.
Fig. 5 is a schematic view of a pendant assembly of the present invention 1.
Fig. 6 is a schematic perspective view of fig. 2 of the present invention.
Fig. 7 is a schematic perspective view of fig. 3 according to the present invention.
Fig. 8 is a schematic view of a pendant assembly of the present invention 2.
Fig. 9 is a schematic view of the structure of the toothed bar of the present invention.
Fig. 10 is a schematic structural view of the steering seat of the present invention.
In the drawing, 100-car shell, 110-battery assembly, 111-fastener, 112-fender, 120-driving hub, 130-motor, 140-rotating main shaft, 150-driving lever, 151-turning shaft, 152-height adjusting knob, 153-quick adjustment head, 160-handle, 161-handle, 162-finger control display, 163-display screen, 164-adjusting button, 165-reversing switch, 170-support, 171-elastic turning shaft, 172-connecting tube, 180-attaching plate, 181-steering seat, 182-adjusting plate, 183-hanging member, 184-anchor fixing member, first anchor, 186-hanging plate, 187-rotating shaft, 188-groove, 189-sheathing plate, 200-fixing groove, 210-first positioning hole, 220-rolling gear, 221-sealing cavity, 222-bottom plate, 223-rectangular handle, 230-front fork weldment, 300-joining joint, 310-mounting sleeve, 320-sleeve, 330-second positioning hole, 340-fixing pin, 350-reinforcing rib, 360-cross member, 370-380-second anchor pin, 400-telescopic anchor, 390-telescopic link, 400-telescopic link.
Detailed Description
The invention is further described with reference to the following detailed drawings in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the implementation of the invention easy to understand.
Referring to fig. 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, an electrically driven headstock device for a wheelchair, comprising a headstock and an engagement device for connecting the wheelchair, the headstock comprises a headstock housing 100, a handle bar 160 and a driving hub 120, a front fork weldment 230 is sealed on the inner side of the headstock housing 100, an opening groove at the bottom of the front fork weldment 230 is engaged with a rotating main shaft 140 for controlling a front motor 130 of the driving hub 120, a driving rod 150 mounted on the top of the front fork weldment 230 is engaged with the handle bar 160 through a height adjusting button 152, a battery assembly 110 locked through a fastener 111 is embedded in a hollow part on one side of the front fork weldment 230, the other side of the front fork weldment 230 is engaged with a steering seat 181 through an engagement plate 180, the connecting pipe 172 that turns to seat 181 below set up links up the support piece 170 that makes the locomotive steadily place through elasticity pivot 171, turn to seat 181 surface mounting's rectangle handle 223 links up regulating plate 182, the first locating hole 210 of connecting linking device has evenly been arranged to the both sides of regulating plate 182, the fixed slot 200 at the saddle 181 top is turned to the rotation axis 187 that the link plate 186 below that first locating hole 210 surface set up was installed, regulating plate 182 links up the saddle 181 through the recess 188 that the base was seted up and carries out flexible bolt 390 through spring 400, the face of cylinder of bolt 390 links up the arc of regulating plate 182 surface setting sleeve 189, the steering column pole is installed to the inside hollow part of saddle 181.
The quick adjustment 153 of handlebar 160 title connects pivot 151, the both ends of handlebar 160 are provided with handle 161, the surface of handlebar 160 is provided with command display 162, the manual brake is installed to one side of one of them handle, wherein another handle sets up to actuating button, reversing switch 165 is installed to one side of actuating button, the inside of command display 162 is provided with the controller, the surface mounting of command display 162 has display screen 163, the below of display screen 163 is provided with adjustment button 164, the surface mounting of drive wheel hub 120 has the tire, the surface of tire is provided with anti-skidding decorative pattern, the top of tire is provided with mud guard 112, adopt detachable connection between locomotive and the linking device. The steering seat can drive the wheelchair to flexibly steer through the fixing part of the middle part front fork weldment, is fixed with the adjusting plate, ensures the safety performance in running, supplies power through the battery assembly, drives the tire to run through the hub motor, has excellent stability, can adjust related parameters and display related information in running through the finger control display, has excellent practicability, can be connected with the foldable wheelchair and the non-foldable wheelchair, fills up the blank in the market, and in addition, the invention has three specifications of 8 inches, 10 inches and 12 inches, and the headstock is matched with motors of 6 inches, 8 inches, 10 inches, 12 inches and 16 inches, thereby enhancing the flexibility of use and adapting to the demands of different people.
In one embodiment of the invention:
the engagement device comprises an engagement adjusting plate 182 and a sealing cavity 221 of a hanging component 183, a rolling gear 220 arranged on the surface of the hanging component 183 is arranged in the sealing cavity 221, hoop fixing pieces 184 are arranged at two ends of the hanging component 183, first hoops 185 capable of flexibly overturning a fixed wheelchair are arranged on the surfaces of the hoop fixing pieces 184, locking switches are arranged on the surfaces of the first hoops 185, and the hanging component 183 is U-shaped.
In the process of installation, fix through adjusting the bridge pipe of first staple bolt and wheelchair, make linking means and wheelchair fix, then the rotation axis on regulating plate surface in the linking means falls into the fixed slot at steering seat top, promote the handlebar forward, the bolt that turns to is in the recess of turning to the seat bottom and offer under the effect of spring, the wheelchair perk forward simultaneously, make the front wheel of wheelchair break away from ground, make wheelchair and support car device connect and accomplish, the driving head can accomplish the steering this moment, traction action, the advancing of wheelchair can be realized to the handlebar drive button of holding in the palm, battery pack can provide power support, can be relaxed realization front and back control's removal, when need not using to hold in the palm the locomotive, just need with first staple bolt break away from the wheelchair can, just light completion break away from, in order to satisfy manual wheelchair and electric wheelchair's dual demand, the practicality is excellent, moreover through support piece can make wheelchair steady place on ground, this kind of installation mode is applicable to non-collapsible, the shape of subassembly is U-shaped, the both ends of being convenient for fixing in the wheelchair skeleton, the practicality is excellent. The safety performance is excellent, the driving control can be imported or domestic, the using surface of the product is enlarged, the storage battery can be a lead-acid battery or a lithium battery, and the purpose of advancing can be achieved by operating the driving rod.
In another embodiment of the invention:
the linking device comprises a linking chuck 300 connected with an adjusting plate 182, the linking chuck 300 is fixed with a mounting sleeve 310, a second positioning hole 330 formed in the surface of the mounting sleeve 310 is linked with a fixing pin 340 arranged on the surface of a sleeve 320, the sleeve 340 is connected with a cross beam 360 through a reinforcing rib 350, telescopic rods 370 fixed through screws are arranged on two sides of the cross beam 360, a second hoop 380 connected with a wheelchair is arranged on the surface of the telescopic rods 370, and the cross beam 360 and the sleeve 340 are vertically placed.
The length of the mounting sleeve and the sleeve can be adjusted through the second positioning hole and the fixing pin, the length of the mounting sleeve and the sleeve can be changed according to actual conditions, the width of the folding wheelchair in the cross beam can be changed through the telescopic rod due to larger size change of the folding wheelchair, so that the width suitable for the wheelchair is achieved, in the mounting process, the connecting device and the wheelchair are fixed through adjusting the second hoop and the bridge pipe of the wheelchair, then the rotating shaft on the surface of the adjusting plate in the connecting device falls into the fixing groove at the top of the steering seat, the handlebar is pushed forward, the steering bolt is sprung into the groove formed at the bottom of the steering seat under the action of the spring, the wheelchair is tilted forward, the front wheel of the wheelchair is separated from the ground, the connection of the wheelchair and the supporting device is completed, and at the moment, the driving head can complete steering and traction actions, the wheelchair can be moved forward by holding the handlebar driving button, the battery assembly can provide power supply support, the front, back, left and right movement can be easily realized, when a saddle head is not needed to be used, the second hoop is separated from the wheelchair, the separation can be easily completed, the dual requirements of the manual wheelchair and the electric wheelchair are met, the practicability is excellent, the wheelchair can be stably placed on the ground through the supporting piece, the mounting mode is suitable for the foldable wheelchair, the cross beam and the sleeve are vertically placed, the stability in use is improved, the safety performance is excellent, the driving control can be imported or domestic, the use surface of a product is enlarged, the storage battery can be a lead-acid battery or a lithium battery, and the purpose of advancing can be achieved through the operation of the driving rod.
Based on the above, the invention has the advantages of simple structure, novel creation, organically combined manual wheelchair and electric wheelchair, convenient use for the elderly or the disabled, flexible disassembly and assembly, excellent expansibility, improved life quality of the elderly or the disabled, capability of controlling the wheelchair at will, exquisite appearance, convenient operation, excellent quality, long service life, novel design, good innovation scheme and market popularization prospect.
It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides an electric drive locomotive device for wheelchair, includes locomotive and the linking device of connecting the wheelchair, its characterized in that: the locomotive includes car shell, the handlebar, the drive hub, the inboard of car shell is sealed to have the front fork weldment, the open slot of front fork weldment bottom links up the rotation main shaft that controls drive hub forward motor, the actuating lever of front fork weldment top installation links up the handlebar through the altitude mixture control button, the battery pack that front fork weldment one side cavity embedding was locked through the fastener, the opposite side of front fork weldment links up the steering seat through the laminating board, the connecting pipe that the steering seat below set up links up the support piece that makes the locomotive steadily place through elasticity turnover shaft, steering seat surface mounting's rectangle handle links up the regulating plate, the fixed slot at the link up steering seat top is evenly arranged to the both sides of regulating plate, the recess that the regulating plate was offered through the base links up the steering seat and carries out flexible bolt through the spring, the face of circular arc of sleeve plate is linked up to the regulating plate surface, steering post pole is installed to the inside cavity of steering seat.
2. An electrically driven vehicle head apparatus for a wheelchair as claimed in claim 1, wherein: the connecting device comprises a sealing cavity for connecting the adjusting plate and the hanging component, a rolling gear arranged on the surface of the hanging component is arranged in the sealing cavity, hoop fixing pieces are arranged at two ends of the hanging component, first hoops capable of flexibly overturning for fixing the wheelchair are arranged on the surfaces of the hoop fixing pieces, and locking switches are arranged on the surfaces of the first hoops.
3. An electrically driven vehicle head apparatus for a wheelchair as claimed in claim 1, wherein: the connecting device comprises a connecting chuck connected with the adjusting plate, the connecting chuck is fixed with the mounting sleeve, a second positioning hole formed in the surface of the mounting sleeve is connected with a fixing pin arranged on the surface of the sleeve, the sleeve is connected with the cross beam through a reinforcing rib, telescopic rods fixed through screws are arranged on two sides of the cross beam, and a second hoop connected with the wheelchair is formed in the surface of the telescopic rods.
4. An electrically driven vehicle head apparatus for a wheelchair as claimed in claim 1, wherein: the quick adjustment head of handlebar link up the pivot of turning over, the both ends of handlebar are provided with the handle, the surface of handlebar is provided with the accuse display, the manual brake is installed to one side of one of them handle, wherein another handle sets up to drive button, the switch of backing a car is installed to one side of drive button, the inside of instructing the accuse display is provided with the controller, the surface mounting of instructing the accuse display has the display screen, the below of display screen is provided with adjustment button.
5. An electrically driven vehicle head apparatus for a wheelchair as claimed in claim 1, wherein: the surface of the driving hub is provided with a tire, the surface of the tire is provided with anti-skid patterns, and a mud guard is arranged above the tire.
6. An electrically driven vehicle head apparatus for a wheelchair as claimed in claim 1, wherein: the headstock and the connecting device are detachably connected.
7. An electrically driven vehicle head apparatus for a wheelchair as claimed in claim 2, wherein: the shape of the pendant component is U-shaped.
8. An electrically driven vehicle head apparatus for a wheelchair as claimed in claim 3, wherein: the cross beam and the sleeve are vertically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213589.2A CN107280873B (en) | 2016-04-07 | 2016-04-07 | Electric drive headstock device for wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213589.2A CN107280873B (en) | 2016-04-07 | 2016-04-07 | Electric drive headstock device for wheelchair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107280873A CN107280873A (en) | 2017-10-24 |
| CN107280873B true CN107280873B (en) | 2023-07-21 |
Family
ID=60092873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610213589.2A Active CN107280873B (en) | 2016-04-07 | 2016-04-07 | Electric drive headstock device for wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107280873B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108478346B (en) * | 2018-04-03 | 2020-10-16 | 蔡书洪 | Electric vehicle head capable of being connected with wheelchair |
| CN108420613A (en) * | 2018-04-09 | 2018-08-21 | 苏州奔集动力有限公司 | A kind of electrically powered wheelchair device |
| CN109998809A (en) * | 2019-04-23 | 2019-07-12 | 恩比尔(厦门)机械制造有限公司 | Electric wheelchair head electric hoisting mechanism with safety device |
| CN110353900A (en) * | 2019-08-23 | 2019-10-22 | 广东技术师范大学 | A kind of dismountable type wheel-chair traction device |
| CN112754789A (en) * | 2021-01-20 | 2021-05-07 | 上海健康医学院 | External driving device of wheelchair |
| CN113509326A (en) * | 2021-05-07 | 2021-10-19 | 王超 | Connecting device for connecting electric locomotive and wheelchair |
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|---|---|---|---|---|
| TWM275833U (en) * | 2005-04-29 | 2005-09-21 | Sunpex Technology Co Ltd | Fixture structure for the front wheel of electric walker |
| CN202960980U (en) * | 2012-12-21 | 2013-06-05 | 陈岩军 | Motor-driven power booster of manually propelled wheelchair |
| CN104173148A (en) * | 2014-09-09 | 2014-12-03 | 上海威之群机电制品有限公司 | Wheelchair electric driving head and use method thereof |
| CN104758127A (en) * | 2015-03-25 | 2015-07-08 | 谢空成 | Quick connecting structure for electrically propelled wheelchair head and wheelchair and electrically propelled wheelchair head |
| CN205698290U (en) * | 2016-04-07 | 2016-11-23 | 上海威之群机电制品有限公司 | A kind of wheelchair driven by power headstock device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070096427A1 (en) * | 2005-10-14 | 2007-05-03 | James Knaub | Powered attachment for a wheelchair |
-
2016
- 2016-04-07 CN CN201610213589.2A patent/CN107280873B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM275833U (en) * | 2005-04-29 | 2005-09-21 | Sunpex Technology Co Ltd | Fixture structure for the front wheel of electric walker |
| CN202960980U (en) * | 2012-12-21 | 2013-06-05 | 陈岩军 | Motor-driven power booster of manually propelled wheelchair |
| CN104173148A (en) * | 2014-09-09 | 2014-12-03 | 上海威之群机电制品有限公司 | Wheelchair electric driving head and use method thereof |
| CN104758127A (en) * | 2015-03-25 | 2015-07-08 | 谢空成 | Quick connecting structure for electrically propelled wheelchair head and wheelchair and electrically propelled wheelchair head |
| CN205698290U (en) * | 2016-04-07 | 2016-11-23 | 上海威之群机电制品有限公司 | A kind of wheelchair driven by power headstock device |
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| Publication number | Publication date |
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| CN107280873A (en) | 2017-10-24 |
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