CN108478346B - Electric vehicle head capable of being connected with wheelchair - Google Patents
Electric vehicle head capable of being connected with wheelchair Download PDFInfo
- Publication number
- CN108478346B CN108478346B CN201810288646.2A CN201810288646A CN108478346B CN 108478346 B CN108478346 B CN 108478346B CN 201810288646 A CN201810288646 A CN 201810288646A CN 108478346 B CN108478346 B CN 108478346B
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- bolt
- wheelchair
- clamping
- positioning bolt
- cross beam
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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
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
- A61G5/047—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven by a modular detachable drive system
-
- 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
Abstract
The invention discloses an electric locomotive capable of being connected with a wheelchair, which comprises a cross beam and an electric locomotive, wherein the cross beam is detachably connected with a front wheel upright post of the wheelchair through a connecting frame; the middle part of the cross beam is provided with a clamping part which is a clamping groove opened towards the front of the vehicle head, the lower end groove wall of the clamping groove extends forwards to form a supporting part, and the supporting part is provided with an opening; the electric drive headstock is provided with a clamping part, the clamping part is a hollow fixture block with through holes on the upper end surface and the lower end surface, a positioning bolt, a spring and a limiting plate are arranged on the clamping part, the positioning bolt passes through the through holes, and the limiting plate is fixedly connected to the lower part of the positioning bolt and is positioned in the clamping part; the spring sleeve is arranged on the positioning bolt and is positioned between the bolt head of the positioning bolt and the limiting plate; the bolt head of the positioning bolt is usually stopped against the upper part of the beam support; the bolt head of the positioning bolt is lifted upwards to enable the positioning bolt to be clamped in the opening of the supporting part, and at the moment, the electric drive locomotive is connected with the turbine; the invention is convenient to install, can be independently operated without the help of other people by a user, and saves time and labor.
Description
Technical Field
The invention relates to the field of wheelchair equipment, in particular to an electric locomotive capable of being connected with a wheelchair.
Background
When the lower limbs of a person are injured or have problems, the person cannot walk for a temporary or long time or is too old and inconvenient to walk, and then the person can move with the assistance of a wheelchair and the like; manual wheelchairs require intervention of human power to move them, and the manual wheelchairs in the prior art can be folded, stored or placed in a vehicle for transportation;
the manual wheelchair can be folded, the occupied area is small, and the user can not operate the wheelchair alone conveniently; the electric seat is simple and convenient to operate, but the volume of the electric seat is not variable, and a large storage space is occupied; therefore, there is an urgent need for a device which can occupy a small area in the storage stage and can be conveniently operated for the elderly or people who cannot normally walk in a short time; the electric wheelchair is widely applied to life as a tool for people with inconvenient leg and foot movement, can enlarge the range of motion of the people and save physical strength. The electric wheelchair is formed by connecting an electric locomotive and a wheelchair and is generally detachable. However, the electric locomotive of the existing detachable electric wheelchair is complex to install and detach, generally needs help of other people, cannot be independently operated, and wastes time and labor.
Therefore, there is a need to develop a wheelchair electric locomotive device which is easy to install and use to overcome the above-mentioned drawbacks.
Disclosure of Invention
In view of the above, the present invention provides an electric locomotive connectable to a wheelchair.
In order to achieve the purpose, the invention adopts the following technical scheme: the invention provides an electric locomotive capable of being connected with a wheelchair, which comprises
The cross beam is detachably connected with the front wheel upright post of the wheelchair through a connecting frame; the middle part of the cross beam is provided with a clamping part;
the electric drive locomotive is provided with a clamping portion, and the clamping portion is connected with the clamping portion in a matched clamping mode.
The electric drive headstock can be in adaptive clamping connection with the wheelchair through the clamping part and the clamping part, is convenient and quick, saves manpower, and can be independently operated by a user.
Further, the electric drive headstock comprises a support rod body, a handle, a wheel carrier, wheels and a driving part; the clamping part is fixed on the rear side of the lower part of the supporting rod body, and the clamping part and the handle are fixedly connected to the supporting rod body through a handle connecting rod; the wheel carrier is n-shaped, and the upper part of the wheel carrier is fixedly connected with the lower end of the supporting rod body; the wheels are arranged in the wheel frame through wheel shafts; the driving part drives the wheel shaft to rotate or advance.
The electric bicycle of the invention has simple structure, small volume and light weight, and is convenient for users to move and use.
Furthermore, the connecting frame comprises a pipe clamp and a vertical rod; the tube clamps are two groups, each group of tube clamps is formed by symmetrically arranging two half tube clamps, and a cylindrical space can be formed in the middle of each group of tube clamps for accommodating and fixedly connecting a front wheel upright post of the wheelchair; the two upright posts are respectively and correspondingly fixedly connected to the same end of the pipe clamp one by one;
preferably, the central axis of the upright is parallel to the central axis of the front wheel upright, and is located inside the front wheel upright.
The connecting frame is pre-installed on a front wheel upright post of the wheelchair, namely two half pipe clamps are fixed on the front wheel upright post of the wheelchair through fixing bolts, the upright posts are fixed at the same ends of the two groups of pipe clamps, and the shortest straight line space on the same plane is formed between the upright posts so that the crossbeam is fixed and conveniently connected with the two upright posts.
Furthermore, the two ends of the cross beam are detachably connected with the two upright rods.
Furthermore, the clamping part is a hollow clamping block, and a positioning bolt is arranged on the clamping part; the clamping portion is a clamping groove with an opening towards the front of the vehicle head, a supporting portion extends forwards from the groove wall of the lower end of the clamping groove, an opening is formed in the supporting portion, the hollow clamping block is clamped and embedded in the clamping groove, and the lower end of the positioning bolt is clamped and connected in the opening of the supporting portion.
Furthermore, the clamping part also comprises a spring and a limiting plate, the clamping part is provided with a through hole penetrating through the upper end plate and the lower end plate, and the positioning bolt penetrates through the through hole and is longer than the distance between the upper end plate and the lower end plate; the limiting plate is fixedly connected to the lower part of the positioning bolt and is positioned inside the clamping part; the spring is sleeved on the positioning bolt and positioned between the inner side surface of the upper end plate of the clamping part and the limiting plate; the bolt head of the positioning bolt is usually stopped against the outer side surface of the upper end plate of the clamping part.
When using, upwards mention the pilot pin, install card and the portion with joint portion in, after targetting in place, release the pilot pin, the pilot pin passes the trompil of card and portion supporting part, fixes the electric drive locomotive on the wheelchair, just can use the electric drive locomotive to drive the wheelchair removal this moment.
Further, the support body of rod includes telescopic link and dead lever, the telescopic link is the cavity type with the dead lever, the inside lower extreme of dead lever is provided with the bolt, the inside upper end of telescopic link is fixed with the nut, the bolt passes the dead lever lower extreme with the nut is connected.
Furthermore, a pressing plate is fixed between the bolt head of the positioning bolt and the through hole.
Preferably, the length of the pressure plate is longer than the width of the upper end plate of the clamping part.
Preferably, the surface of the pressure plate is provided with anti-skid lines.
The setting of clamp plate can utilize the clamp plate to mention the pilot pin, makes things convenient for the location installation of pilot pin.
Further, one end of the bolt head far away from the positioning bolt is provided with a wedge shape.
The setting of wedge-shaped positioning bolt in this scheme makes things convenient for the positioning bolt to get into in the trompil of card and the lower extreme supporting part of portion, saves physical power, and specific only needs place the joint portion of electric drive locomotive in the draw-in groove of the card of crossbeam and portion to the draw-in groove is the axle, promotes the locomotive to electric drive locomotive the place ahead, can draw the positioning bolt into in the trompil of card and the lower extreme supporting part of portion.
The invention has the following advantages:
1. the wheelchair is small in size, convenient to detach from the wheelchair and convenient to use, can be operated by a single person, and can meet the travel requirements of disabled people, wounded people and old people.
2. The invention and the wheelchair are arranged separately, which is convenient for folding and storing the wheelchair, reduces the occupied space and is convenient for carrying and transporting the automobile or other vehicles.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a side view of the structure of the present invention;
FIG. 3 is a schematic view of a wheelchair;
in the figure: 1 is a support rod body; 2 is a front wheel upright post; 3 is a pressing plate; 4 is a handle; 5 is a telescopic rod; 6 is a wheel carrier; 71 is a through hole; 72 is a positioning bolt; 73 is a spring; 74 is a limit plate; 8 is a beam, 9 is a clamping part; 10 is a pipe clamp; 11 is a vertical rod; 12 is a clamping part; and 13 is a wheel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 and 2, the electric locomotive capable of being connected with the wheelchair comprises an electric locomotive, a cross beam 8 and a connecting frame.
The connecting frame is pre-installed on a front wheel upright post of the wheelchair, and comprises a pipe clamp 10 and an upright rod 11; the pipe clamps 10 are two groups, each group of pipe clamps 10 is formed by symmetrically arranging two half pipe clamps, and a cylindrical space can be formed in the middle of each group of pipe clamps 10 to accommodate the front wheel upright post 2 of the wheelchair; in the embodiment, two half pipe clamps are fastened at the side ends of the pipe clamp 10 by two hexagon socket head cap bolts and are fixed on the front wheel upright post 2 of the wheelchair; two upright posts 11 are welded at the same end of the pipe clamp 10 in a one-to-one correspondence manner; the central axis of the upright rod 11 is parallel to the central axis of the front wheel upright 2 and is positioned at the inner side of the front wheel upright 2. The arrangement can reduce the use of the material of the cross beam 8 as much as possible, reduce the weight of the cross beam 8 and facilitate the taking and use of a user.
The two ends of the cross beam 8 are detachably connected with the two upright posts 11, the upright posts 11 are divided into a first upright post and a second upright post in the embodiment, the inner side edge of the first upright post is longitudinally provided with side-by-side holes, and the front side edge and the rear side edge of the second upright post are fixedly provided with a plurality of bolts which are arranged in a one-to-one correspondence manner; the crossbeam 8 is a hollow structure with one closed end and one open end, the open end of the crossbeam 8 is provided with a fixing frame, one end of the fixing frame is matched with the inner cavity of the open end of the crossbeam and is telescopically arranged in the open end of the crossbeam 8; the other end of mount is the T style of calligraphy, and its both sides limit has the recess corresponding with the bolt, and the blind end of crossbeam 8 is provided with the trompil, and the inside of crossbeam 8 is equipped with the bolt, and the trompil is passed to the one end of the round pin body of bolt, and the other end of the round pin body of bolt passes and fixes the first limiting plate that is used for spacing the bolt inside the crossbeam. A first spring is arranged between the first limiting plate and the bolt, and the first spring is sleeved on the bolt and positioned between the first limiting plate and a handle of the bolt;
crossbeam 8 can utilize the mount to be connected with the second pole setting, inserts the mount T style of calligraphy on the bolt of second pole setting, then stirs 8 other ends bolts of crossbeam inboard, makes crossbeam 8 along the horizontal direction place in first pole setting with in the middle of the second pole setting, release bolt, the bolt inserts downthehole of first pole setting.
In the present embodiment, the cross-section of the cross-beam 8 is square.
In other embodiments, the cross-section of the cross-beam 8 is circular or any polygon.
The arrangement of the fixing frame on the cross beam 8 enables the cross beam 8 to adapt to wheelchairs of different models, namely to be suitable for wheelchairs with different distances between the front wheel upright posts 2.
The middle part of the cross beam 8 is provided with a clamping part 9; the clamping portion 9 is a clamping groove with an opening towards the front of the vehicle head, a supporting portion extends forwards from the groove wall at the lower end of the clamping groove, and an opening is formed in the supporting portion.
The electric drive headstock comprises a clamping part 12, a support rod body 1, a handle 4, a wheel carrier 6, wheels 13 and a drive part;
the clamping part 12 is fixed at the rear side of the lower part of the supporting rod body 1 and corresponds to the clamping part 9;
the handle 4 is fixedly connected to the upper part of the support rod body 1 through a handle connecting rod;
the support rod body 1 comprises a telescopic rod 5 and a fixed rod, the telescopic rod 5 and the fixed rod are hollow, a bolt is arranged at the lower end of the inside of the fixed rod, a nut is fixed at the upper end of the inside of the telescopic rod 5, and the bolt penetrates through the lower end of the fixed rod and is connected with the nut.
In this embodiment, the fixing rod has a battery mounted therein. An electronic control system, etc. The setting of telescopic link can make whole electric drive locomotive can carry out altitude mixture control through bolt and nut, can supply the user of different heights to use.
The wheel carrier 6 is n-shaped, and the upper part of the wheel carrier 6 is fixedly connected with the lower end of the telescopic rod 5;
the wheels 13 are arranged in the wheel carrier 6 through wheel shafts;
the driving part drives the wheel shaft to rotate or advance.
The clamping part 12 is a hollow clamping block, and the clamping part 12 is provided with a positioning bolt 72; the lower end of the positioning bolt 72 is clamped in the opening of the supporting part. The clamping part 12 further comprises a spring 73 and a limiting plate 74, the clamping part 12 is provided with a through hole 71 penetrating through the upper end plate and the lower end plate, and a positioning bolt 72 penetrates through the through hole 71 and is longer than the distance between the upper end plate and the lower end plate; the limiting plate 74 is fixedly connected to the lower part of the positioning bolt 73 and is positioned inside the clamping part 12; the spring 73 is sleeved on the positioning bolt 72 and positioned between the inner side surface of the upper end plate of the clamping part 12 and the limiting plate 74; the head of the positioning bolt 72 usually abuts against the outer side surface of the upper end plate of the clamping portion 12.
When the electric wheelchair is used, the positioning bolt 72 is lifted upwards, the clamping portion 12 is installed in the clamping portion 9, after the positioning bolt 72 is in place, the positioning bolt 72 is released, the positioning bolt 72 penetrates through an opening of the supporting portion of the clamping portion 9, the electric drive headstock is fixed on the wheelchair, and at the moment, the electric drive headstock can be used for driving the wheelchair to move.
In this embodiment, the pressing plate 3 is fixed between the head of the positioning pin 72 and the through hole 71. The length of clamp plate 3 is longer than the width of joint portion upper end plate, and the surface of clamp plate 3 still is provided with anti-skidding line. The setting of clamp plate 3 can utilize clamp plate 3 to lift the pilot pin 72 upwards, makes things convenient for the location installation of pilot pin 72. The arrangement of the anti-slip lines on the surface of the pressing plate 3 can ensure that the invention is smoother when in use and can not cause the problem of slipping.
The end of the head remote from the positioning pin 72 is wedge-shaped. The setting of wedge-shaped positioning bolt 72 makes things convenient for the positioning bolt 72 to get into in the trompil of card and portion 9 lower extreme supporting part, saves physical power, and specific clamping portion 12 that only needs to drive the locomotive places in the card of crossbeam 8 and the draw-in groove of portion 9 to the draw-in groove is the axle, promotes the locomotive to electric drive locomotive the place ahead, can draw the positioning bolt 72 smoothly in the trompil of card and portion 9 lower extreme supporting part. Therefore, the electrically driven head can be fixed on the wheelchair and used for driving the wheelchair to move.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. An electric locomotive which can be connected with a wheelchair is characterized by comprising,
the cross beam (8), the cross beam (8) is detachably connected with the wheelchair front wheel upright post (2) through a connecting frame; the middle part of the cross beam (8) is provided with a clamping part (9);
the electric drive locomotive is provided with a clamping part (12), and the clamping part (12) is in adaptive clamping connection with the clamping part (9);
the connecting frame comprises a connecting frame and a connecting rod,
the wheelchair comprises two groups of pipe clamps (10), wherein each group of pipe clamps (10) is formed by symmetrically arranging two half pipe clamps, and a cylindrical space can be formed in the middle of each group of pipe clamps (10) and is used for accommodating and fixedly connecting a front wheel upright post (2) of the wheelchair;
the vertical rods (11) comprise first vertical rods and second vertical rods, and the first vertical rods and the second vertical rods are respectively and correspondingly fixedly connected to the inner side ends of each group of pipe clamps (10);
the inner side edge of the first upright stanchion is longitudinally provided with side-by-side holes, and the front side edge and the rear side edge of the second upright stanchion are fixedly provided with a plurality of bolts which are arranged in a one-to-one correspondence manner; the cross beam (8) is of a hollow structure with one closed end and one open end; a fixing frame is arranged at the opening end of the cross beam (8), and one end of the fixing frame is matched with the inner cavity of the opening end of the cross beam and is arranged in the opening end of the cross beam (8) in a telescopic manner; the other end of the fixing frame is T-shaped, grooves corresponding to bolts are formed in two side edges of the fixing frame, an opening is formed in the closed end of the cross beam (8), a bolt is arranged inside the cross beam (8), one end of a bolt body of the bolt penetrates through the opening, and the other end of the bolt body penetrates through a first limiting plate which is fixed inside the cross beam (8) and used for limiting the bolt; a first spring is arranged between the first limit plate and the bolt, is sleeved on the bolt and is positioned between the first limit plate and a handle of the bolt;
crossbeam (8) utilize the mount with the second pole setting is connected, will mount T style of calligraphy is inserted on the bolt of second pole setting, then will crossbeam (8) other end bolt is stirred to the inboard, makes crossbeam (8) along the horizontal direction place in the middle of first pole setting with the second pole setting, release the bolt, the bolt inserts the downthehole of first pole setting.
2. The wheelchair-connectible electric locomotive according to claim 1, characterized in that it comprises
A support rod body (1); the clamping part (12) is fixed on the rear side of the lower part of the supporting rod body (1) and corresponds to the clamping part (9) in position;
the handle (4) is fixedly connected to the supporting rod body (1) through a handle connecting rod;
the wheel carrier (6), the said wheel carrier (6) is n-shaped, the upper portion of the said wheel carrier (6) is fixedly connected with lower end of the said support rod body (1);
a wheel (13), the wheel (13) being mounted in the wheel carrier (6) by means of a wheel axle;
a driving part driving the wheel shaft to rotate or advance.
3. Electric vehicle head connectable to a wheelchair, according to claim 1, characterized in that the uprights (11) have a central axis parallel to the central axis of the front wheel upright (2) and are located inside the front wheel upright (2).
4. The electric locomotive capable of being connected with the wheelchair as claimed in any one of claims 1 to 3, characterized in that the clamping portion (12) is a hollow block, and the clamping portion (12) is provided with a positioning bolt (72); the clamping part (9) is a clamping groove with an opening towards the front of the vehicle head, a supporting part extends forwards from the groove wall at the lower end of the clamping groove, an opening is formed in the supporting part, the hollow clamping block is clamped and embedded in the clamping groove, and the lower end of the positioning bolt (72) is clamped and connected in the opening of the supporting part.
5. The electric head of claim 4, characterized in that the clamping portion (12) further comprises a spring (73) and a limit plate (74), the clamping portion (12) has a through hole (71) penetrating through the upper and lower end plates, the locating bolt (72) penetrates through the through hole (71) and is longer than the distance between the upper and lower end plates; the limiting plate (74) is fixedly connected to the lower part of the positioning bolt (72) and is positioned in the clamping part (12); the spring (73) is sleeved on the positioning bolt (72) and is positioned between the inner side surface of the upper end plate of the clamping part (12) and the limiting plate (74); the bolt head of the positioning bolt (72) is normally stopped against the outer side surface of the upper end plate of the clamping part (12).
6. The electric locomotive capable of being connected with a wheelchair as claimed in claim 2, characterized in that the supporting rod body (1) comprises a hollow telescopic rod (5) and a fixing rod, the lower end of the inside of the fixing rod is provided with a bolt, the upper end of the inside of the telescopic rod (5) is fixed with a nut, and the bolt passes through the lower end of the fixing rod and is connected with the nut.
7. Electric vehicle head connectable to a wheelchair according to claim 5, characterized in that a pressure plate (3) is fixed between the head of the positioning bolt (72) and the through hole (71).
8. Electric vehicle head connectable to a wheelchair according to claim 5, characterised in that the end of the head remote from the positioning bolt (72) is arranged in a wedge shape.
9. The electric locomotive capable of being connected with the wheelchair as claimed in claim 7, wherein the length of the pressure plate (3) is longer than the width of the upper end plate of the clamping portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810288646.2A CN108478346B (en) | 2018-04-03 | 2018-04-03 | Electric vehicle head capable of being connected with wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810288646.2A CN108478346B (en) | 2018-04-03 | 2018-04-03 | Electric vehicle head capable of being connected with wheelchair |
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| Publication Number | Publication Date |
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| CN108478346A CN108478346A (en) | 2018-09-04 |
| CN108478346B true CN108478346B (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810288646.2A Active CN108478346B (en) | 2018-04-03 | 2018-04-03 | Electric vehicle head capable of being connected with wheelchair |
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| CN (1) | CN108478346B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109481167A (en) * | 2018-12-29 | 2019-03-19 | 陈立新 | A kind of wheelchair auxiliary device for moving and wheelchair |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101088482A (en) * | 2006-06-12 | 2007-12-19 | 杰迈电子股份有限公司 | Auxiliary electric wheelchair device with draw-in and draw-off function |
| US20110095508A1 (en) * | 2009-10-26 | 2011-04-28 | Wu's Tech Co., Ltd. | Quick-release mechanism for wheel chair and auxiliary operating lever |
| GB2481059A (en) * | 2010-06-11 | 2011-12-14 | Wus Tech Co Ltd | A quick-release coupling for securing an auxiliary drive assembly to a manually operated wheelchair |
| CN202859488U (en) * | 2012-09-24 | 2013-04-10 | 卢明荣 | Electrically propelled wheelchair structure |
| ES2443085B1 (en) * | 2013-07-08 | 2014-11-25 | Batec Mobility, S.L. | Coupling system of an auxiliary element in a wheelchair |
| CN106572937B (en) * | 2014-06-23 | 2019-07-23 | 韩国生产技术研究院 | Driving assist system with other installation frame |
| KR101697761B1 (en) * | 2015-04-14 | 2017-01-18 | 주식회사 네오엘에프엔 | combination structure of wheelchair and drive unit |
| CN204581736U (en) * | 2015-04-17 | 2015-08-26 | 孟如苗 | A kind of electric wheelchair |
| CN107280873B (en) * | 2016-04-07 | 2023-07-21 | 上海威之群机电制品有限公司 | Electric drive headstock device for wheelchair |
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