CN109589214A - A kind of intelligent wheel chair of climbing stairs obstacle detouring - Google Patents
A kind of intelligent wheel chair of climbing stairs obstacle detouring Download PDFInfo
- Publication number
- CN109589214A CN109589214A CN201910073115.6A CN201910073115A CN109589214A CN 109589214 A CN109589214 A CN 109589214A CN 201910073115 A CN201910073115 A CN 201910073115A CN 109589214 A CN109589214 A CN 109589214A
- Authority
- CN
- China
- Prior art keywords
- wheelchair
- wheel
- upper body
- driving wheel
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
-
- 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
-
- 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
- A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
- A61G5/061—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps for climbing stairs
-
- 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
- A61G5/104—Devices for lifting or tilting the whole wheelchair
Abstract
The invention discloses a kind of intelligent wheel chairs of climbing stairs obstacle detouring, including wheelchair upper body and wheelchair lower body, wheelchair upper body includes seat, wheelchair lower body includes the wheelchair upper body dip angle adjusting mechanism connecting with seat, body support frame under the wheelchair being connect with wheelchair upper body dip angle adjusting mechanism, and four groups of wheelchair wheels, wheelchair lower body frame includes the wheelchair upper body revolving support seat that seat lower surface is fixedly mounted, wheelchair upper body revolving support seat lower removable is inserted with wheelchair lower body axis, wheelchair lower body axis both ends are fixedly installed with supporting plate, supporting plate two sides are provided with wheel dip angle adjusting mechanism.The present invention being leaned forward or being swung back by wheel, increase critical size range of toppling, improve safety when wheelchair breaks the barriers, wheelchair pose adjustment during climb and fall is realized by wheelchair pitch angle control, guarantee that wheel seat remains horizontality, improves safety and the comfort of seating.
Description
Technical field
The present invention relates to intelligent wheel chair technical fields, more specifically, in particular to a kind of intelligence of climbing stairs obstacle detouring
Wheelchair.
Background technique
Domestic city is in the majority with multilayer apartment-type building especially in small and medium-sized cities, and the use of elevator is spread to not yet
All residential buildings cause inconvenience to wheelchair user.Wheelchair user is outgoing simultaneously faces climb and fall, road road
The obstacles such as tooth, stair need special messenger and help that the place for wanting arrival could be arrived at, this just causes action to wheelchair user
Limitation and inconvenience.
In order to improve wheelchair user's freedom of action and reduce dependence to nursing staff, it is necessary to design it is a it is novel can
The wheelchair of stair climbing obstacle detouring can greatly improve the quality of life of the elderly and the disabled, make their trip more convenient, building
Ladder and roadblock will no longer become the obstacle of their trips.
Wheelchair stair-climbing ladder obstacle detouring requirement is realized it is necessary to which solve in wheelchair walking process may problems faced: as stair,
Curb, climb and fall etc..
Summary of the invention
The purpose of the present invention is to provide a kind of problem on obstacle that is able to solve and may be faced in wheelchair walking process can
The intelligent wheel chair of stair climbing obstacle detouring.
In order to achieve the above object, The technical solution adopted by the invention is as follows: a kind of intelligent wheel chair of climbing stairs obstacle detouring,
Including wheelchair upper body and wheelchair lower body, the wheelchair upper body includes seat, and the wheelchair lower body includes the wheelchair connecting with seat
Body support frame and four groups of wheelchair wheels, described under upper body dip angle adjusting mechanism, the wheelchair connecting with wheelchair upper body dip angle adjusting mechanism
Wheelchair lower body frame includes the wheelchair upper body revolving support seat that seat lower surface is fixedly mounted, and wheelchair upper body revolving support seat lower part is living
Dynamic to be inserted with wheelchair lower body axis, the wheelchair lower body axis both ends are fixedly installed with supporting plate, and supporting plate two sides are provided with wheel
Sub- dip angle adjusting mechanism, the wheel dip angle adjusting mechanism include the first worm gear, from wheel wheel shaft, the second motor, the second worm screw
And connecting plate, the bracket board ends are connect by follower shaft with connecting plate, the connecting plate side surface is in driven wheel axle position
It sets and is fixedly installed with fixed plate, fixed plate surface is provided with two groups of protruding plates, and second worm screw is movably arranged on two groups of protrusions
Between plate, second motor is fixedly mounted on one side surface of fixed plate, and first worm gear is fixed to be set in from wheel wheel shaft one
End, second worm screw engage with the first worm gear, and the output shaft of second motor is fixedly connected with second worm screw one end, described
Connecting plate one side surface opposite with wheel dip angle adjusting mechanism is arranged in wheelchair wheel.
Preferably, the wheelchair wheel includes engagement band, drive sprocket axle, driven wheel, driving wheel stator, driving wheel, braking
Device, the first cover board and two group of second cover board, the driving wheel and driven wheel are located at engagement with internal both ends, and driving wheel and
Driven wheel is connected by meshing transmission with band is engaged, and the second cover board described in two groups is fixedly connected with driving wheel and driven wheel respectively, described
Second cover board side surface of driving wheel position and driven wheel side surface are fixedly installed with bearing, one side surface of brake with
From wheel wheel shaft one end be fixedly connected, another side surface of brake is fixedly connected with the first cover board, the bearing on the driven wheel and
Another side surface connection of first cover board, the first cover board is installed on the driven wheel by bolt, on the driven wheel and driving wheel
Second cover board is fixedly connected, and the drive sprocket axle is mounted on the connecting plate side surface from wheel wheel shaft opposite end, the master
Driving wheel stator is arranged in driving wheel, and driving wheel stator one end is mounted on drive sprocket axle.
Preferably, wheelchair upper body dip angle adjusting mechanism includes mounting plate, pitch angle control device, the first worm screw, the first electricity
Machine and the second worm gear, the mounting plate is fixed to be fixedly mounted wheelchair lower body axis surface described in one group wherein, second worm gear
It is fixedly mounted on the revolving support seat of wheelchair upper body, the first motor is fixedly mounted on one side surface of mounting plate, and the first electricity
The output shaft of machine is fixedly connected with the first worm screw, and the first worm screw engages with the second worm gear, and the pitch angle control device is fixedly mounted on
Mounting plate side surface, and pitch angle control device is electrically connected with first motor.
Preferably, the driving wheel and driven wheel surface are uniformly provided with multiple groups groove, and the engagement band inner surface is uniform
It is fixedly installed multiple groups casting lug thereon, the driving wheel and driven wheel and is engaged by groove with the casting lug thereon for engaging band.
Compared with the prior art, the advantages of the present invention are as follows:
The wheelchair is designed by completely new traveling wheel and structure, is able to solve the problem on obstacle that may be faced in wheelchair walking process,
Have important practical significance, have the beneficial effect that: 1, leaning forward or swinging back by wheel increases the critical size model that topples
It encloses, improves safety when wheelchair breaks the barriers；2, it by integrated walking and the design of pitch angle control Special wheel, realizes
Walking and obstacle detouring requirement.3, wheelchair pose adjustment during climb and fall is realized by wheelchair pitch angle control, guarantees wheel seat
It remains horizontality, improves safety and the comfort of seating；4, appearance is carried out using the unidirectional power transmission of worm and gear
State control, avoids the bi-directional of movement, and system is simpler, reliable.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is a kind of structure chart of the intelligent wheel chair of climbing stairs obstacle detouring of the present invention.
Fig. 2 is wheelchair wheel explosive view of the invention；
Fig. 3 is wheel dip angle adjusting mechanism structure chart of the invention；
Fig. 4 is wheelchair upper body dip angle adjusting mechanism of the invention.
Specific embodiment
The preferred embodiment of the present invention is described in detail with reference to the accompanying drawing, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in fig.1, the present invention provides a kind of intelligent wheel chair of climbing stairs obstacle detouring, including under wheelchair upper body and wheelchair
Body, wheelchair upper body include seat 23, and wheelchair lower body includes the wheelchair upper body dip angle adjusting mechanism 24 and wheelchair connecting with seat 23
Body support frame 25 and four groups of wheelchair wheels 26 under the wheelchair that upper body dip angle adjusting mechanism 24 connects, wheelchair lower body frame includes seat 23
The wheelchair upper body revolving support seat 18 that lower surface is fixedly mounted, 18 lower removable of wheelchair upper body revolving support seat are inserted under wheelchair
Body axis 13,13 both ends of wheelchair lower body axis are fixedly installed with supporting plate 15, and 15 two sides of supporting plate are provided with wheel Inclination maneuver
Mechanism 27, as shown in figure 4, wheel dip angle adjusting mechanism 27 include the first worm gear 1, from wheel wheel shaft 2, the second motor 20, second
Worm screw 22 and connecting plate 12,15 both ends of supporting plate are connect by follower shaft 2 with connecting plate 12, and 12 side surface of connecting plate is driven
2 position of wheel shaft is fixedly installed with fixed plate, and fixed plate surface is provided with two groups of protruding plates, and the second worm screw 22 is movably arranged on two groups
Between protruding plate, the second motor 21 is fixedly mounted on 2 one side surface of fixed plate, and the first worm gear 1 is fixed to be set in from wheel wheel shaft 2 one
End, the second worm screw 21 engage with the first worm gear 1, and the output shaft of the second motor 20 is fixedly connected with 21 one end of the second worm screw, wheelchair
Connecting plate 12 one side surface opposite with wheel dip angle adjusting mechanism 27 is arranged in wheel, when encountering the similar obstacles such as go upstairs
When, by control the second motor 20 operating, and then the rotation of the second worm screw 21 is driven, the first snail can be driven by the second worm screw 21
The rotation of wheel 1, so as to adjust the tilt angle of wheelchair wheel, so that Convenient wheelchair wheel can be climbed, upstairs with proper angle
And leaping over obstacles.
It is fixedly connected since the first worm gear 1 is used with connecting plate 12, and the follower shaft 2 of entire connecting plate 12 is another
End is mounted on supporting plate 15, drives entire connecting plate 12 centered on follower shaft 2 around supporting plate when the rotation of the first worm gear 1
15 rotations reach leaping over obstacles by the adjustment of 15 angle of supporting plate, realize obstacle crossing function.
As shown in Fig. 2, wheelchair wheel 26 includes engagement band 6, drive sprocket axle 11, driven wheel 5, driving wheel in the present embodiment
Stator 9, driving wheel 10, brake 3, the first cover board 4 and two group of second cover board 7, driving wheel 10 and driven wheel 5 are located at engagement
6 inside both ends of band, and driving wheel 10 and driven wheel 5 are connected by meshing transmission with band 6 is engaged, two group of second cover board 7 is respectively and actively
Wheel 10 is fixedly connected with driven wheel 5, and 7 side surface of the second cover board and 5 side surface of driven wheel of 10 position of driving wheel are fixedly mounted
There is bearing 8,3 one side surface of brake is fixedly connected with from wheel 2 one end of wheel shaft, and another side surface of brake 3 and the first cover board 4 are solid
Fixed to connect, the bearing 8 on driven wheel 5 is connect with another side surface of the first cover board 4, and the first cover board 4 is mounted on driven by bolt
On wheel 5, driven wheel 5 is fixedly connected with the second cover board 7 on driving wheel 10, and drive sprocket axle 11 is mounted on from wheel 2 phase of wheel shaft
12 side surface of connecting plate of anti-one end, drive sprocket axle 11 can be connect with external driving device, this is the prior art, in figure not
It shows, driving wheel stator 9 is arranged in driving wheel 10, and 9 one end of driving wheel stator is mounted on drive sprocket axle 11, works as drive sprocket axle
11 by driving device when being rotated, and driving wheel 5 drives engagement band 6 to rotate together, and by driving driven wheel 10 to rotate together,
To realize walking function.
As shown in figure 3, in the present embodiment, wheelchair upper body dip angle adjusting mechanism 24 include mounting plate 22, pitch angle control device 14,
First worm screw 16, first motor 17 and the second worm gear 19, mounting plate 22 is fixed to be fixedly mounted one group of wheelchair lower body axis 13 wherein
Surface, the second worm gear 19 are fixedly mounted on wheelchair upper body revolving support seat 18, and first motor 17 is fixedly mounted on mounting plate 22
One side surface, and the output shaft of first motor 17 is fixedly connected with the first worm screw 16, the first worm screw 16 engages with the second worm gear 19,
Pitch angle control device 14 is fixedly mounted on 22 side surface of mounting plate, and pitch angle control device 14 is electrically connected with first motor 17, works as wheelchair
When movement encounters upward slope on the ground, seat 23 generates rotation backward, and the pitch angle control device 14 being mounted on mounting plate 22 is examined
The variation of corner is measured, and feeds back a control signal to first motor 17, first motor 17 generates rotation, drives the first worm screw
16 rotations, and then the first worm screw 16 drives the rotation of the second worm gear 19, and is a movement opposite with 23 rotation direction of seat,
Similarly descending process is opposite with this process.
It is fixedly connected since wheelchair upper body revolving support seat 18 is used with the second worm gear 19.When the rotation of the second worm gear 19,
Wheelchair upper body revolving support seat 18 will be allowed to do a movement opposite with 23 rotation direction of seat around wheelchair lower body axis 13, so that it may
To guarantee that seat 23 always in horizontality, guarantees the comfort taken.
In the present embodiment, driving wheel 10 and 5 surface of driven wheel are uniformly provided with multiple groups groove, and engagement 6 inner surface of band is uniform
It is fixedly installed multiple groups casting lug thereon, driving wheel 10 and driven wheel 5 and is engaged by groove with the casting lug thereon for engaging band 6, guarantee engagement
Band 6 can be rotated by driving wheel 10.
Although the embodiments of the invention are described in conjunction with the attached drawings, but patent owner can be in appended claims
Within the scope of make various deformations or amendments, as long as it does not exceed the scope of protection described in the claims to the invention, all should
Within protection scope of the present invention.
Claims (4)
1. a kind of intelligent wheel chair of climbing stairs obstacle detouring, including wheelchair upper body and wheelchair lower body, it is characterised in that: on the wheelchair
Body includes seat, and the wheelchair lower body includes the wheelchair upper body dip angle adjusting mechanism connecting with seat and wheelchair upper body inclination angle tune
Body support frame and four groups of wheelchair wheels under the wheelchair of complete machine structure connection, the wheelchair lower body frame include that seat lower surface is fixedly mounted
Wheelchair upper body revolving support seat, wheelchair upper body revolving support seat lower removable is inserted with wheelchair lower body axis, the wheelchair lower body
Axis both ends are fixedly installed with supporting plate, and supporting plate two sides are provided with wheel dip angle adjusting mechanism, the wheel Inclination maneuver
Mechanism includes the first worm gear, from wheel wheel shaft, the second motor, the second worm screw and connecting plate, and the bracket board ends pass through driven
Wheel shaft is connect with connecting plate, and the connecting plate side surface is fixedly installed with fixed plate in follower shaft position, and fixed plate surface is set
Two groups of protruding plates are equipped with, second worm screw is movably arranged between two groups of protruding plates, and second motor is fixedly mounted on
One side surface of fixed board, first worm gear is fixed to be set in from wheel wheel shaft one end, and second worm screw engages with the first worm gear, institute
The output shaft for stating the second motor is fixedly connected with second worm screw one end, wheelchair wheel setting with wheel dip angle adjusting mechanism
Opposite one side surface of connecting plate.
2. a kind of intelligent wheel chair of climbing stairs obstacle detouring according to claim 1, it is characterised in that: the wheelchair wheel attached bag
Engagement band, drive sprocket axle, driven wheel, driving wheel stator, driving wheel, brake, the first cover board and two group of second cover board are included, it is described
Driving wheel and driven wheel are located at engagement with internal both ends, and driving wheel and driven wheel are connected by meshing transmission with band is engaged, and two
Group second cover board is fixedly connected with driving wheel and driven wheel respectively, the second cover board side surface of the driving wheel position and from
Driving wheel side surface is fixedly installed with bearing, and one side surface of brake is fixedly connected with from wheel wheel shaft one end, and brake is another
One side surface is fixedly connected with the first cover board, and the bearing on the driven wheel is connect with another side surface of the first cover board, the first lid
Plate is installed on the driven wheel by bolt, and the driven wheel is fixedly connected with the second cover board on driving wheel, the drive sprocket axle
It is mounted on the connecting plate side surface from wheel wheel shaft opposite end, the driving wheel stator is arranged in driving wheel, driving wheel
Stator one end is mounted on drive sprocket axle.
3. a kind of intelligent wheel chair of climbing stairs obstacle detouring according to claim 1, it is characterised in that: incline the wheelchair upper body
Angle adjusting mechanism includes mounting plate, pitch angle control device, the first worm screw, first motor and the second worm gear, and the mounting plate is fixed solid
Dingan County be installed therein one group described in wheelchair lower body axis surface, second worm gear is fixedly mounted on wheelchair upper body revolving support seat
On, the first motor is fixedly mounted on one side surface of mounting plate, and the output shaft of first motor is fixedly connected with the first worm screw,
First worm screw engages with the second worm gear, and the pitch angle control device is fixedly mounted on mounting plate side surface, and pitch angle control device and
The electrical connection of one motor.
4. a kind of intelligent wheel chair of climbing stairs obstacle detouring according to claim 2, it is characterised in that: the driving wheel and from
Driving wheel surface is uniformly provided with multiple groups groove, and the engagement band inner surface is fixedly uniformly arranged with multiple groups casting lug thereon, the active
Wheel and driven wheel are engaged by groove with the casting lug thereon for engaging band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910073115.6A CN109589214A (en) | 2019-01-25 | 2019-01-25 | A kind of intelligent wheel chair of climbing stairs obstacle detouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910073115.6A CN109589214A (en) | 2019-01-25 | 2019-01-25 | A kind of intelligent wheel chair of climbing stairs obstacle detouring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109589214A true CN109589214A (en) | 2019-04-09 |
Family
ID=65966583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910073115.6A Pending CN109589214A (en) | 2019-01-25 | 2019-01-25 | A kind of intelligent wheel chair of climbing stairs obstacle detouring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109589214A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111096861A (en) * | 2020-01-10 | 2020-05-05 | 王浩然 | Self-adaptive electric wheelchair capable of climbing steep slope |
| CN112754791A (en) * | 2021-01-26 | 2021-05-07 | 张德强 | Wheel inclination adjustable patient rehabilitation wheelchair |
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|---|---|---|---|---|
| CN2320234Y (en) * | 1998-02-19 | 1999-05-26 | 孙卫国 | Electric wheel-chair device capable of going up and down steps |
| WO2002096336A1 (en) * | 2001-05-24 | 2002-12-05 | Ki-Soo Kim | A wheel chair |
| CN201492595U (en) * | 2009-08-20 | 2010-06-02 | 李雨水 | Electric wheelchair capable of climbing stairs |
| CN201558239U (en) * | 2009-11-30 | 2010-08-25 | 王�华 | Multifunctional wheelchair upstairs and downstairs |
| CN202051917U (en) * | 2011-04-26 | 2011-11-30 | 谭先权 | Wheelchair with stair climbing function |
| CN203524885U (en) * | 2013-02-23 | 2014-04-09 | 哈尔滨市馨元拖鞋厂 | Stairs climbing obstacle-crossing electrically powered wheelchair |
| CN104970931A (en) * | 2015-06-19 | 2015-10-14 | 邵胜昌 | Multifunctional electric wheelchair |
| CN105559984A (en) * | 2016-02-29 | 2016-05-11 | 华南理工大学 | Nursing power assistance system |
| CN108294870A (en) * | 2017-08-09 | 2018-07-20 | 仲兆宏 | Barrier free accessibility balance car |
-
2019
- 2019-01-25 CN CN201910073115.6A patent/CN109589214A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2320234Y (en) * | 1998-02-19 | 1999-05-26 | 孙卫国 | Electric wheel-chair device capable of going up and down steps |
| WO2002096336A1 (en) * | 2001-05-24 | 2002-12-05 | Ki-Soo Kim | A wheel chair |
| CN201492595U (en) * | 2009-08-20 | 2010-06-02 | 李雨水 | Electric wheelchair capable of climbing stairs |
| CN201558239U (en) * | 2009-11-30 | 2010-08-25 | 王�华 | Multifunctional wheelchair upstairs and downstairs |
| CN202051917U (en) * | 2011-04-26 | 2011-11-30 | 谭先权 | Wheelchair with stair climbing function |
| CN203524885U (en) * | 2013-02-23 | 2014-04-09 | 哈尔滨市馨元拖鞋厂 | Stairs climbing obstacle-crossing electrically powered wheelchair |
| CN104970931A (en) * | 2015-06-19 | 2015-10-14 | 邵胜昌 | Multifunctional electric wheelchair |
| CN105559984A (en) * | 2016-02-29 | 2016-05-11 | 华南理工大学 | Nursing power assistance system |
| CN108294870A (en) * | 2017-08-09 | 2018-07-20 | 仲兆宏 | Barrier free accessibility balance car |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111096861A (en) * | 2020-01-10 | 2020-05-05 | 王浩然 | Self-adaptive electric wheelchair capable of climbing steep slope |
| CN112754791A (en) * | 2021-01-26 | 2021-05-07 | 张德强 | Wheel inclination adjustable patient rehabilitation wheelchair |
| CN112754791B (en) * | 2021-01-26 | 2023-11-24 | 美而特智能后勤服务有限公司 | Patient rehabilitation wheelchair with adjustable wheel inclination angle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 400020 No. 100, Four Villages, Jialing, Jiangbei District, Chongqing Applicant after: Chongqing Chemical Industry Vocational College Address before: 401220 Bodhi East Road, Changshou District, Chongqing, No. 2009 Applicant before: Chongqing Chemical Industry Vocational College |
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| CB02 | Change of applicant information | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190409 |
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| RJ01 | Rejection of invention patent application after publication |