CN109124904A - A kind of multidirectional barrier free wheelchair - Google Patents
A kind of multidirectional barrier free wheelchair Download PDFInfo
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- CN109124904A CN109124904A CN201810755605.XA CN201810755605A CN109124904A CN 109124904 A CN109124904 A CN 109124904A CN 201810755605 A CN201810755605 A CN 201810755605A CN 109124904 A CN109124904 A CN 109124904A
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- fixed
- sleeve
- bearing
- roller bearing
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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
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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)
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Abstract
The invention discloses a kind of multidirectional barrier free wheelchairs, are related to medical wheelchair technical field.The present invention includes bracket institution, saddle mechanism is fixed on bracket institution, one opposite side of saddle mechanism is respectively and fixedly provided with wheel rim, supporting mechanism is fixed on bracket institution, saddle mechanism includes several seat plates, bracket institution includes several first bearings matched with the first roller bearing, and supporting mechanism includes a third roller bearing.The present invention is by designing new supporting structure, so that the handle of wheelchair, support frame, universal wheel and wheel rim become an entirety, four auxiliary universal wheels cooperate two wheel rims, support construction can be interchanged, support plate can be rotated along shaft, and it is single to solve wheelchair mechanism, unidirectional can only be used, steering is restricted, inconvenience is used, bracket is more independent, the not strong problem of integrated connection property.
Description
Technical field
The invention belongs to medical wheelchair technical fields, more particularly to a kind of multidirectional barrier free wheelchair.
Background technique
Wheelchair is the important tool of rehabilitation, it is not only the walking-replacing tool of limbs the disabled, it is often more important that borrows them
Help wheelchair to carry out physical exercise and participate in social activities.Common wheelchair generally by wheelchair frame, wheel, brake gear and seats against four
Part forms.In universally acknowledged wheelchair history, earliest record is the engraving of the Chinese sub- chair of Northern and Southern Dynasties' sarcophagi upper belt-wheel,
It is the predecessor of modern wheelchair.
Existing wheelchair mostly mechanism is single, and the degree being easy to use is not high, unidirectional can only use；User
When exclusive use, upper and lower wheelchair is inconvenient, and the structural stability of wheelchair is not strong, faces upward hypsokinesis before being easy in upper downslope, brings
Danger, steering are restricted, and use inconvenience；The bracket of existing wheelchair is more independent, and integrated connection property is not strong, causes strong
Not enough, service life is short, increases unnecessary cost for degree.
Summary of the invention
The purpose of the present invention is to provide a kind of multidirectional barrier free wheelchairs, by designing completely new supporting structure, so that wheel
Handle, support frame, universal wheel and the wheel rim of chair become an entirety, and four auxiliary universal wheels cooperate two wheel rims, support construction
It can be interchanged, support plate can be rotated along shaft, and it is single to solve existing wheelchair mostly mechanism, it unidirectional can only use,
The structural stability of wheelchair is not strong, faces upward hypsokinesis before being easy in upper downslope, and steering is restricted, and integrated connection property is not strong, causes
The inadequate problem of intensity.
In order to solve the above technical problems, the present invention is achieved by the following technical solutions:
The present invention is a kind of multidirectional barrier free wheelchair, including bracket institution, is fixed with saddle mechanism on the bracket institution,
One opposite side of saddle mechanism is rotatably connected to wheel rim, and one opposite side of bracket institution is respectively and fixedly provided with supporting mechanism；
The saddle mechanism includes two seat plates, and two seat plate one sides are fixed with first support, and described first
Frame is fixed with the first roller bearing by second support and third bracket；
The bracket institution includes two first bearings matched with the first roller bearing, two the first bearing week side
Opposite side is respectively and fixedly provided with the 4th bracket, and two one surfaces of the 4th bracket are fixed with the first strut, two first struts one
End is respectively fixed with shell and first sleeve, and the second strut, the first sleeve are fixed between the first sleeve and shell
Inner wall is fixed with fixed ring, and one surface of the second strut is fixed with handrail；
The supporting mechanism includes a third roller bearing, and third roller bearing both ends pass through bearing and inner walls and the respectively
The rotation connection of one sleeve lining, one end face of third roller bearing are fixed with disc spring, and the disc spring other end is fixed with inner walls
Connection, third roller bearing other end are fixed with gear, and one end face of gear is fixed with the first spring, first spring
The other end is fixed with handle, and one surface of handle is fixed with axis, and the axis is engaged with gear；
The third roller bearing week side is fixed with the first support plate, and one surface of the first support plate is provided with one first hole,
The inner wall in first hole is fixed with 3rd sleeve, the 3rd sleeve week side be fixed with fourth bearing, the fourth bearing
Inner surface is fixed with 4th sleeve, and one surface of the first support plate is fixed by 3rd sleeve, fourth bearing and 4th sleeve
There is the second support plate, one surface of the second support plate is provided with the second hole, and the inner wall in first hole is fixed with second spring, institute
The inner wall for stating the second hole is fixedly connected with the other end of second spring, and the inner wall in second hole and all sides of 4th sleeve are solid
Fixed connection.
Further, the bracket institution includes one first fixing axle, one end face of the first fixing axle and the 4th bracket
One surface is fixedly connected, and first fixing axle other end is fixed with second sleeve.
Further, the wheel rim includes 3rd bearing, the fixed company of the 3rd bearing inner wall and the first roller bearing week side
It connects.
Further, the second sleeve inner wall is fixed with the second fixing axle, and one end face of the second fixing axle is fixed with
Baffle, the second fixing axle week side are fixed with the second roller bearing.
Further, the second roller bearing week side is fixed with second bearing, the second bearing week side be fixed with three
A third strut, three one end faces of third strut are fixed with the first idler wheel.
Further, 3rd bearing week side is fixed with three the 4th struts, and three described 4th strut one end are solid
Surely there is wheel hub.
Further, the hub inner surface is fixed with the second idler wheel, and the hub outside surface is fixed there are six fixed link,
Six one end faces of fixed link are fixed with hand-push loop.
The invention has the following advantages:
1, the present invention is by designing completely new supporting structure, so that the handle of wheelchair, support frame, universal wheel and wheel rim become
One entirety so that whole stability is stronger, while but also the harmony of wheelchair is more perfect, solving existing wheel
Chair mechanism is single, and the degree being easy to use is not high, and the structural stability of wheelchair is not strong, and the bracket of wheelchair is more independent, whole
Body connectivity is not strong, and intensity is inadequate, the short problem of service life.
2, the present invention cooperates two wheel rims, so that the bottom cross section of wheelchair by newly devising four auxiliary universal wheels
Increase so that wheelchair is more stable, the steering simultaneously for wheelchair provides helps so that user using when steering become
It is more light comfortable, hypsokinesis is faced upward before being easy when solving downslope on wheelchair, turns to inconvenient problem.
3, the present invention passes through the support construction for changing wheelchair, so that the support construction of wheelchair can be interchanged, the same support
Plate both can be used as backrest, also can be used as the support of leg；Support plate can be rotated along shaft simultaneously, so that user is individually upper and lower
Enhanced convenience when wheelchair, when solving user's exclusive use, the problem of upper and lower wheelchair inconvenience.
Certainly, it implements any of the products of the present invention and does not necessarily require achieving all the advantages described above at the same time.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will be described below to embodiment required
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for ability
For the those of ordinary skill of domain, without creative efforts, it can also be obtained according to these attached drawings other attached
Figure.
Fig. 1 is a kind of structural schematic diagram of multidirectional barrier free wheelchair of the invention；
Fig. 2 is the structural schematic diagram of saddle mechanism；
Fig. 3 is the structural schematic diagram of bracket institution；
Fig. 4 is the structural schematic diagram of universal wheel；
Fig. 5 is the structural schematic diagram of indexing mechanism；
Fig. 6 is the structural schematic diagram of supporting mechanism；
Fig. 7 is the structural schematic diagram of third roller bearing, shell and first sleeve；
Fig. 8 is the partial enlarged view of A in Fig. 7；
Fig. 9 is the partial enlarged view of B in Fig. 7；
Figure 10 is the structural schematic diagram of the first support plate and the second support plate；
Figure 11 is the structural schematic diagram of 3rd sleeve；
In attached drawing, parts list represented by the reference numerals are as follows:
1- saddle mechanism, 2- bracket institution, 3- wheel rim, 4- supporting mechanism, 101- seat plate, 102- first support, 103-
Two brackets, 104- third bracket, the first roller bearing of 105-, 201- first bearing, the 4th bracket of 202-, the first strut of 203-, 204-
Shell, 205- first sleeve, the second strut of 206-, 207- handrail, the first fixing axle of 208-, 209- second sleeve, 210- baffle,
The second fixing axle of 211-, the second roller bearing of 212-, 213- second bearing, 214- third strut, the first idler wheel of 215-, 216- are fixed
Ring, 301- wheel hub, the second idler wheel of 302-, 303- fixed link, the 4th strut of 304-, 305- hand-push loop, 306- 3rd bearing, 401-
Third roller bearing, the first support plate of 402-, the second support plate of 403-, 404- disc spring, 405- gear, the first spring of 406-, 407- handle
Hand, 408- axis, 409- 3rd sleeve, 410- fourth bearing, 411- 4th sleeve, 412- second spring.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts all other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " aperture ", "upper", "lower", " thickness ", "top", " in ",
Indicating positions or the positional relationship such as " length ", "inner", " surrounding ", are merely for convenience of description of the present invention and simplification of the description, without
It is that the component of indication or suggestion meaning or element must have a particular orientation, is constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.
It please refers to shown in Fig. 1-11, the present invention is a kind of multidirectional barrier free wheelchair, including bracket institution 2, on bracket institution 2
It is fixed with saddle mechanism 1,1 one opposite side of saddle mechanism is rotatably connected to wheel rim 3, and 2 one opposite side of bracket institution is respectively and fixedly provided with
Supporting mechanism 4；
Saddle mechanism 1 includes that 2 seat plates, 101,2 101 1 surfaces of seat plate are fixed with first support 102, first support 102
The first roller bearing 105 is fixed with by second support 103 and third bracket 104；
Bracket institution 2 includes 2 first bearings 201 weeks of the first bearing matched with the first roller bearing 105 201,2
Lateral opposite sides are respectively and fixedly provided with the 4th bracket 202, and two 202 1 surfaces of the 4th bracket are respectively and fixedly provided with the first strut 203, and two
Described first strut, 203 one end is respectively fixed with shell 204 and first sleeve 205, the first sleeve 205 and shell 204 it
Between be fixed with the second strut 206,205 inner wall of first sleeve is fixed with fixed ring 216,206 1 surface of the second strut
It is fixed with handrail 207；
Supporting mechanism 4 includes a third roller bearing 401,401 both ends of third roller bearing pass through respectively bearing and 204 inner wall of shell and
The rotation connection of 205 inner wall of first sleeve, 401 1 end face of third roller bearing are fixed with disc spring 404,404 other end of disc spring and shell 204
Inner wall is fixedly connected, and 401 other end of third roller bearing is fixed with gear 405, and 405 1 end face of gear is fixed with the first spring 406,
First spring, 406 other end is fixed with handle 407, and 407 1 surface of handle is fixed with axis 408, and axis 408 is nibbled with gear 405
It closes；
401 weeks sides of third roller bearing are fixed with the first support plate 402, and 402 1 surface of the first support plate is provided with one first hole,
The inner wall in the first hole is fixed with 3rd sleeve 409, and 409 weeks sides of 3rd sleeve are fixed with fourth bearing 410, fourth bearing 410
Inner surface is fixed with 4th sleeve 411, and 402 1 surface of the first support plate passes through 3rd sleeve 409, fourth bearing 410 and the 4th
Sleeve 411 is fixed with the second support plate 403, and 403 1 surface of the second support plate is provided with the second hole, and the inner wall in the first hole is fixed with
The inner wall of two springs 412, the second hole is fixedly connected with the other end of second spring 412, the inner wall and 4th sleeve 411 in the second hole
All sides be fixedly connected.
Wherein as shown in Figures 3 and 4, bracket institution 2 includes one first fixing axle 208,208 1 end face of the first fixing axle and the
Four brackets, 202 1 surface is fixedly connected, and 208 other end of the first fixing axle is fixed with second sleeve 209.
Wherein as shown in figure 5, wheel rim 3 includes 3rd bearing 306,105 weeks sides of 306 inner wall of 3rd bearing and the first roller bearing
It is fixedly connected.
Wherein as shown in figure 4,209 inner wall of second sleeve is fixed with the second fixing axle 211,211 1 end face of the second fixing axle
It is fixed with baffle 210, the second side of fixing axle 211 weeks is fixed with the second roller bearing 212.
Wherein as shown in figure 4,212 weeks sides of the second roller bearing are fixed with second bearing 213,213 weeks sides of second bearing are solid
There are 3 third struts, 214,3 214 one end of third strut to be fixed with the first idler wheel 215 surely.
Wherein as shown in figure 5,306 weeks sides of 3rd bearing are fixed with 3 the 4th struts 304,3 the 4th struts 304 1
End is fixed with wheel hub 301.
Wherein as shown in figure 5,301 inner surface of wheel hub is fixed with the second idler wheel 302,301 outer surface of wheel hub is fixed with 6 admittedly
303,6 303 1 end faces of fixed link of fixed pole are fixed with hand-push loop 305.
One concrete application of the present embodiment are as follows: user is sitting on seat plate 101, moves hand-push loop 305 with hand push, so that the
Second wheel 302 rotates, to realize mobile purpose；When user turns to, the universal wheel below wheelchair is rotated, cooperation
Wheel rim 3 rotates wheelchair towards the direction of needs；When user needs lower wheelchair, handle 407 is pulled out, then
Swing handle 407, so that axis 408 no longer sticks gear 405, to lean back, so that 402 turns of the first support plate of wheelchair
It is dynamic, realize the purpose of lower wheelchair；When swing handle 407, handle 407 can move inwards under the action of the first spring 406,
So that axis 408 and gear 405 cooperate, the motionless purpose of fixed wheelchair the first support plate 402,401 one end of third roller bearing are realized
It is fixed with disc spring 404,404 other end of disc spring and shell 204 are fixed, disc spring 404 is squeezed when third shaft 401 rotates, so that
Disc spring 404 generates elastic force, and when fixing the first support plate 402 without axis 404, the first support plate 402 be can rotate to original
Fixed form, the second support plate 403 are identical as its principle.
In the description of this specification, the description of reference term " one embodiment ", " example ", " specific example " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one implementation of the invention
In example or example.In the present specification, schematic expression of the above terms may not refer to the same embodiment or example.
Moreover, particular features, structures, materials, or characteristics described can be in any one or more of the embodiments or examples to close
Suitable mode combines.
Present invention disclosed above preferred embodiment is only intended to help to illustrate the present invention.There is no detailed for preferred embodiment
All details are described, are not limited the invention to the specific embodiments described.Obviously, according to the content of this specification,
It can make many modifications and variations.These embodiments are chosen and specifically described to this specification, is in order to better explain the present invention
Principle and practical application, so that skilled artisan be enable to better understand and utilize the present invention.The present invention is only
It is limited by claims and its full scope and equivalent.
Claims (7)
1. a kind of multidirectional barrier free wheelchair, including bracket institution (2), it is characterised in that: be fixed with seat on the bracket institution (2)
It pads mechanism (1), (1) one opposite side of saddle mechanism is rotatably connected to wheel rim (3), (2) one opposite side of bracket institution
It is respectively and fixedly provided with supporting mechanism (4)；
The saddle mechanism (1) includes several seat plates (101), and several (101) one surfaces of seat plate are fixed with first support
(102), the first support (102) is fixed with the first roller bearing (105) by second support (103) and third bracket (104)；
The bracket institution (2) includes several first bearings (201) matched with the first roller bearing (105), and several described first
Bearing (201) week, lateral opposite sides were respectively and fixedly provided with the 4th bracket (202), and two (202) one surfaces of the 4th bracket are fixed
Have the first strut (203), two described first strut (203) one end are respectively fixed with shell (204) and first sleeve (205), institute
It states and is fixed between first sleeve (205) and shell (204) the second strut (206), first sleeve (205) inner wall is fixed with
Fixed ring (216), (206) one surface of the second strut are fixed with handrail (207)；
The supporting mechanism (4) includes a third roller bearing (401), and third roller bearing (401) both ends pass through bearing and shell respectively
Body (204) inner wall and the rotation connection of first sleeve (205) inner wall, (401) one end face of third roller bearing is fixed with disc spring
(404), disc spring (404) other end is fixedly connected with shell (204) inner wall, and third roller bearing (401) other end is solid
Surely have gear (405), (405) one end face of gear is fixed with the first spring (406), the first spring (406) other end
It is fixed with handle (407), (407) one surface of handle is fixed with axis (408), and the axis (408) is nibbled with gear (405)
It closes；
The all sides of the third roller bearing (401) are fixed with the first support plate (402), and (402) one surface of the first support plate is opened
There is one first hole, the inner wall in first hole is fixed with 3rd sleeve (409), and all sides of the 3rd sleeve (409) are fixed with
Fourth bearing (410), fourth bearing (410) inner surface are fixed with 4th sleeve (411), first support plate (402)
One surface is fixed with the second support plate (403), institute by 3rd sleeve (409), fourth bearing (410) and 4th sleeve (411)
It states (403) one surface of the second support plate and is provided with the second hole, the inner wall in first hole is fixed with second spring (412), and described
The inner wall in two holes is fixedly connected with the other end of second spring (412), the inner wall in second hole and the week of 4th sleeve (411)
Side is fixedly connected.
2. a kind of multidirectional barrier free wheelchair according to claim 1, which is characterized in that the bracket institution (2) includes one
First fixing axle (208), (208) one end face of the first fixing axle are fixedly connected with (202) one surface of the 4th bracket, and described
One fixing axle (208) other end is fixed with second sleeve (209).
3. a kind of multidirectional barrier free wheelchair according to claim 1, which is characterized in that the wheel rim (3) includes third axis
It holds (306), 3rd bearing (306) inner wall is fixedly connected with all sides of the first roller bearing (105).
4. a kind of multidirectional barrier free wheelchair according to claim 2, which is characterized in that second sleeve (209) inner wall
It is fixed with the second fixing axle (211), (211) one end face of the second fixing axle is fixed with baffle (210), second fixing axle
(211) all sides are fixed with the second roller bearing (212).
5. a kind of multidirectional barrier free wheelchair according to claim 4, which is characterized in that the second roller bearing (212) side
Face is fixed with second bearing (213), and all sides of the second bearing (213) are fixed with several third struts (214), several described
Third strut (214) one end is fixed with the first idler wheel (215).
6. a kind of multidirectional barrier free wheelchair according to claim 3, which is characterized in that 3rd bearing (306) side
Face is fixed with several 4th struts (304), and several described 4th strut (304) one end are fixed with wheel hub (301).
7. a kind of multidirectional barrier free wheelchair according to claim 6, which is characterized in that wheel hub (301) inner surface is solid
Surely have the second idler wheel (302), wheel hub (301) outer surface is fixed with several fixed links (303), several fixed links
(303) one end faces are fixed with hand-push loop (305).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810755605.XA CN109124904B (en) | 2018-09-13 | 2018-09-13 | Multidirectional barrier-free wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810755605.XA CN109124904B (en) | 2018-09-13 | 2018-09-13 | Multidirectional barrier-free wheelchair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109124904A true CN109124904A (en) | 2019-01-04 |
| CN109124904B CN109124904B (en) | 2020-12-11 |
Family
ID=64799988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810755605.XA Active CN109124904B (en) | 2018-09-13 | 2018-09-13 | Multidirectional barrier-free wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109124904B (en) |
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|---|---|---|---|---|
| JPH08191863A (en) * | 1995-01-13 | 1996-07-30 | Kiyoshi Teratani | Mobile wheelchair for half-paralytic |
| CN202096370U (en) * | 2011-01-29 | 2012-01-04 | 常州好利医疗器械有限公司 | Rest chair for bone fractured patients |
| KR101274411B1 (en) * | 2011-09-01 | 2013-06-17 | 한밭대학교 산학협력단 | Stretcher combined wheel chair |
| CN204541424U (en) * | 2015-04-15 | 2015-08-12 | 武汉科技大学 | A kind ofly manually can help and lock the rocking chair shaken |
| CN205031447U (en) * | 2015-09-25 | 2016-02-17 | 孙伟军 | Novel electronic stair combination wheelchair of climbing |
| CN205073151U (en) * | 2015-10-13 | 2016-03-09 | 浙江工业大学 | Multi -functional disabled person assists utensil based on human engineering |
| CN107518988A (en) * | 2017-09-18 | 2017-12-29 | 浙江佑仁智能机器人有限公司 | A kind of wheelchair for being used for front and rear transhipment patient |
| CN107550652A (en) * | 2017-09-13 | 2018-01-09 | 烟台市莱阳中心医院 | A kind of epileptic's special-purpose multifunctional wheelchair |
| CN107951630A (en) * | 2017-12-27 | 2018-04-24 | 佛山市文飞科技有限公司 | A kind of wheelchair conveniently stood up |
| CN207708099U (en) * | 2017-02-06 | 2018-08-10 | 重庆加加林医疗器械连锁有限公司 | A kind of wheelchair and medical aid |
-
2018
- 2018-09-13 CN CN201810755605.XA patent/CN109124904B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08191863A (en) * | 1995-01-13 | 1996-07-30 | Kiyoshi Teratani | Mobile wheelchair for half-paralytic |
| CN202096370U (en) * | 2011-01-29 | 2012-01-04 | 常州好利医疗器械有限公司 | Rest chair for bone fractured patients |
| KR101274411B1 (en) * | 2011-09-01 | 2013-06-17 | 한밭대학교 산학협력단 | Stretcher combined wheel chair |
| CN204541424U (en) * | 2015-04-15 | 2015-08-12 | 武汉科技大学 | A kind ofly manually can help and lock the rocking chair shaken |
| CN205031447U (en) * | 2015-09-25 | 2016-02-17 | 孙伟军 | Novel electronic stair combination wheelchair of climbing |
| CN205073151U (en) * | 2015-10-13 | 2016-03-09 | 浙江工业大学 | Multi -functional disabled person assists utensil based on human engineering |
| CN207708099U (en) * | 2017-02-06 | 2018-08-10 | 重庆加加林医疗器械连锁有限公司 | A kind of wheelchair and medical aid |
| CN107550652A (en) * | 2017-09-13 | 2018-01-09 | 烟台市莱阳中心医院 | A kind of epileptic's special-purpose multifunctional wheelchair |
| CN107518988A (en) * | 2017-09-18 | 2017-12-29 | 浙江佑仁智能机器人有限公司 | A kind of wheelchair for being used for front and rear transhipment patient |
| CN107951630A (en) * | 2017-12-27 | 2018-04-24 | 佛山市文飞科技有限公司 | A kind of wheelchair conveniently stood up |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109124904B (en) | 2020-12-11 |
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