CN111150570A - Medical wheelchair - Google Patents
Medical wheelchair Download PDFInfo
- Publication number
- CN111150570A CN111150570A CN202010252740.XA CN202010252740A CN111150570A CN 111150570 A CN111150570 A CN 111150570A CN 202010252740 A CN202010252740 A CN 202010252740A CN 111150570 A CN111150570 A CN 111150570A
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- CN
- China
- Prior art keywords
- wheelchair
- braking device
- base
- adjusting knob
- rear wheel
- 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.)
- Granted
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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
- A61G5/02—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs propelled by the patient or disabled person
-
- 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
- A61G5/1005—Wheelchairs having brakes
-
- 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
- A61G5/1005—Wheelchairs having brakes
- A61G5/1021—Wheelchairs having brakes engaging specific brake elements
- A61G5/1027—Hub elements, e.g. drums
-
- 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
- A61G5/1005—Wheelchairs having brakes
- A61G5/1035—Wheelchairs having brakes manipulated by wheelchair user
-
- 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
- A61G2205/00—General identification or selection means
- A61G2205/20—Color codes
Landscapes
- 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)
Abstract
The invention discloses a medical wheelchair, which comprises a front wheel, a rear wheel, a seat and a mechanical braking device, wherein the mechanical braking device comprises a base (1), a braking device and an adjusting knob (9), the base (1) is connected to a hub of the rear wheel of the medical wheelchair, the braking device is positioned between the base (1) and the adjusting knob (9), a rear wheel shaft (12) of the wheelchair penetrates through the base (1) to be connected with the braking device, the state of the braking device is changed by rotating the adjusting knob (9) through a patient, so that the rear wheel of the medical wheelchair is switched back and forth between a free rotation state, a forward only state and a forward and backward locking state, and meanwhile, the current working state of the wheelchair can be clearly observed and indicated through the color displayed in a window, the operation is simple, and the use of the patient is convenient.
Description
Technical Field
The invention belongs to the technical field of medical wheelchairs, and particularly relates to a mechanical braking device of a medical wheelchair.
Background
The wheelchair is a device with movable wheels which is widely used in the prior art, and people who can not walk due to diseases, injuries and disabilities in the society have great demands on the wheelchair, so that the wheelchair not only ensures the improvement of the life quality, but also is beneficial to the rapid rehabilitation of patients, enhances the possibility of short-distance movement, is a very useful and effective tool for people who can not walk or have difficulty in walking, and is greatly helpful.
At present, most of medical wheelchairs are manually driven wheelchairs, due to the special hospital environment, patients or wheelchair users contact the wheelchairs for the first time under many conditions, the first user is in a hospital and cannot be pushed to move by nursing staff or family members all the time, the users are required to drive the wheelchairs to move independently under many conditions, and the manually driven wheelchairs in the prior art have the technical problems of difficulty in driving, difficulty in controlling, incapability of effectively braking, prevention of retreating and the like, so that the problems existing in the manual wheelchairs are urgently needed to be improved.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a medical wheelchair, wherein a mechanical braking device is particularly applied to manually driving hubs of two rear wheels of the wheelchair so as to obtain an ideal control effect.
A medical wheelchair comprises front wheels, rear wheels, a seat and a mechanical braking device, wherein the front wheels rotate universally and are used for controlling the direction, the rear wheels are used for manually driving the wheelchair to move, and the mechanical braking device is arranged on a hub of the rear wheels;
the mechanical brake device comprises a base, a brake device and an adjusting knob, wherein the base is connected to a hub of a rear wheel of the manually driven wheelchair, the brake device is positioned between the base and the adjusting knob, and a rear wheel shaft of the wheelchair penetrates through the base to be connected with the brake device;
the base is in a circular truncated cone shape, screw holes are uniformly distributed on the circumference of a small end plane of the circular truncated cone at one end of the base, which is far away from a hub of the rear wheel, the small end plane is provided with platforms formed by removing materials downwards from the small end plane, and each platform is positioned between two screw holes; an annular groove is formed in the small end plane, and a window is formed between the inner wall of the platform and the annular groove;
the braking device comprises a ratchet wheel and a pawl, the ratchet wheel and the shaft sleeve are arranged integrally, the number of the pawls is one, the pawls are uniformly distributed around the circumference of the ratchet wheel, and a plate spring is arranged on the outer side of each pawl; the ratchet wheel, the pawl and the plate spring are all positioned in a groove with a corresponding shape of a plane of the small end of the circular truncated cone;
the state of the braking device is changed by rotating the adjusting knob, so that the rear wheel of the wheelchair is switched back and forth among a free rotation state, a forward only state and a state of locking forward and backward.
The plate spring is U-shaped, wherein the lengths of two ends of the U-shaped plate spring are different, and a long edge of the U-shaped plate spring is abutted against the outer side of the pawl; the ball bearing is characterized in that counter bores are uniformly distributed on the plane of the small end, a ball is arranged in each counter bore, a spring is arranged between each ball and the bottom of each counter bore, and the spring applies thrust to the balls.
The adjusting knob comprises an upper holding part, a lower display part and a bottom connecting part, wherein the lower display part comprises a group color indicator, each group of color indicators comprises a green indicator, a red indicator and a yellow indicator, and the group color indicators are uniformly distributed on the circumference of the lower display part.
The bottom connecting part comprises a group of half ball seats arranged on the bottom of the adjusting knob, each group of half ball seats corresponds to each group of color indicators one by one on the circumference of each group of half ball seats, each group of half ball seats is one group, each group of half ball seats corresponds to one ball one by one, and each group of half ball seats only matches with one ball in the same state.
The bottom connecting part further comprises arc-shaped stopping pieces protruding from the bottom of the adjusting knob, the arc-shaped stopping pieces are uniformly distributed along the circumference of the bottom of the adjusting knob, and the circle center of each arc-shaped stopping piece coincides with the circle center of the adjusting knob.
The bottom connecting portion still includes from the outstanding combination tooth in lower part display portion bottom, the combination tooth is three, around the circumferencial direction equipartition, the combination tooth inserts in the annular groove, just lower part display portion bottom axial is upwards than adjust knob bottom is higher.
The mechanical braking device further comprises a fixing plate which is abutted against the boss of the lower display part, through holes are evenly distributed in the circumference of the fixing plate, and screws penetrate through the through holes and are connected with the screw holes and used for fixedly connecting the adjusting knobs with the base.
The invention has the advantages that:
1. the medical wheelchair can be in three working states of free movement, only advancing or locking in place, the states can be switched by rotating the adjusting knob by a patient, and the current working state of the wheelchair can be clearly observed and indicated by the color displayed in the window, so that the operation is simple.
2. According to the mechanical brake device of the medical wheelchair, the wheelchair can move freely and only go forward or be locked in place to switch back and forth through the matching of the ratchet wheel, the pawl, the plate spring and the arc-shaped stop piece, so that the structure is simple and practical while the operation efficiency is improved.
3. The mechanical brake device of the medical wheelchair is easy to install and disassemble, can be simply installed on a rear wheel hub of the wheelchair, does not need to additionally add a brake part, is simple to modify, can be manually and safely operated by patients through simple rotation of the knob, and has a simple structure and a good effect.
Drawings
FIGS. 1-3 show a three-dimensional schematic view of the present apparatus;
figures 4-6 show three views of the connection shaft of the present device to the rear wheel hub of a wheelchair;
FIG. 7 shows a front cross-sectional view along the X-X direction of the present apparatus FIG. 4;
FIG. 8 shows a Y-Y cross-sectional view of the hub allowed free rotation mode of FIG. 4;
FIG. 9 shows a Y-Y cross-sectional view of the mode of FIG. 4 allowing forward rotation but preventing rearward motion;
fig. 10 shows a Y-Y cross-sectional view of the forward and backward rotation prevention mode of fig. 4.
Detailed Description
As shown in fig. 1 to 7, the medical wheelchair comprises a front wheel, a rear wheel, a seat and a mechanical braking device, wherein the front wheel is universally rotated and used for controlling the direction, the rear wheel is used for manually driving the wheelchair to move, and the mechanical braking device is arranged on a hub of the rear wheel.
The mechanical brake device comprises a base 1, a brake device and an adjusting knob 9, wherein the base 1 is connected to a hub of a rear wheel of the medical wheelchair, the brake device is located between the base 1 and the adjusting knob 9, a rear wheel shaft 12 of the wheelchair penetrates through the base 1 to be connected with the brake device, and the state of the brake device is changed by rotating the adjusting knob 9, so that the rear wheel of the wheelchair is switched back and forth among a free rotation state, a forward only state and a forward and backward locking state.
One end of the base 1, which is close to a hub of the rear wheel, is provided with a plurality of radial grooves 1A which are dispersed along the center of the base, the radial grooves 1A are matched with spokes on the rear wheel, the center of the base 1 is provided with a through hole 1L, and the rear wheel shaft 12 penetrates through the through hole 1L and is connected with a braking device.
The base 1 is in a circular truncated cone shape, one end plane of the base 1, which is far away from a hub of a rear wheel, is provided with 6 screw holes 1B uniformly distributed on the circumference of a small end plane of the circular truncated cone, the small end plane is provided with 3 platforms 1D formed by removing materials downwards from the small end plane, and each platform 1D is positioned between two screw holes 1B; an annular groove 1E is formed in the small end plane, and a window 1C is formed between the inner wall of the platform 1D and the annular groove 1E.
The braking device comprises ratchet wheels 6A and pawls 5, the ratchet wheels 6A and the shaft sleeve 6 are arranged integrally, the number of the pawls 5 is 3, the pawls are uniformly distributed around the circumference of the ratchet wheels 6A, and plate springs 4 are arranged on the outer sides of the 3 pawls 5; the ratchet wheel 6A, the pawl 5 and the plate spring 4 are all positioned in grooves with corresponding shapes of the plane of the small end of the circular truncated cone.
The plate spring is U-shaped, wherein the lengths of two ends of the U-shape are different, and the long edge of the U-shape abuts against the outer side of the pawl 5.
The ball bearing is characterized in that the plane of the small end is provided with 3 counter bores 1F which are uniformly distributed in the circumference, each counter bore is internally provided with a ball 3, a spring 2 is arranged between each ball 3 and the bottom of the counter bore 1F, and the spring 2 applies thrust to the ball 3.
The adjusting knob 9 comprises an upper holding portion, a lower display portion and a bottom connecting portion, the upper holding portion is convenient for manual holding operation, and further the upper holding portion comprises a rod 10 which penetrates through the upper holding portion, so that the adjusting knob 9 can be rotated in a labor-saving manner.
The lower display part comprises 3 groups of color indicators 9D, each group of color indicators comprises a green indicator, a red indicator and a yellow indicator, and the 3 groups of color indicators are uniformly distributed on the circumference of the lower display part.
The bottom connecting portion is including setting up 3 groups of half ball seats 9C on adjusting knob 9 bottom, and every group half ball seat 9C circumference on with every group color indicator one-to-one, every group half ball seat 9C is 3 a set of, and every group half ball seat 9C and one 3 one-to-one of ball, under the same state, every group half ball seat 9C only cooperatees with a ball 3.
The bottom connecting portion further comprises 3 arc-shaped stopping pieces 9B protruding from the bottom of the adjusting knob 9, the arc-shaped stopping pieces 9B are uniformly distributed along the circumference of the bottom of the adjusting knob 9, the circle center of each arc-shaped stopping piece 9B coincides with the circle center of the adjusting knob 9, and the circle centers of the arc-shaped stopping pieces 9B are closer to the circle center of the adjusting knob 9 than the circle center of the hemispherical seat 9C in the radial direction.
Bottom connecting portion still includes follow the outstanding combination tooth 9A in lower part display portion bottom, combination tooth 9A is three, around the circumferencial direction equipartition, combination tooth 9A inserts in the annular groove 1E, just lower part display portion bottom axial is higher than adjust knob 9 bottom, combination tooth 9A radially is farther away from the centre of a circle of adjust knob 9 than hemisphere seat 9C.
Mechanical brake still includes stationary blade 7, stationary blade 7 supports and leans on the boss of lower part display portion, 6 through-holes 7A of circumference equipartition on the stationary blade 7, screw 8 pass through-hole 7A with screw hole 1B is connected, be used for with adjust knob 9 with base 1 fixed connection.
The rear wheel shaft 12 sequentially penetrates through the base and the adjusting knob 9 and is connected with a top fixing pin 11; the rear wheel axle 12 is fixedly connected with the shaft sleeve 6, namely the rear wheel axle 12 is fixedly connected with the ratchet wheel 6A.
When the mechanical braking device is used, the combination tooth 9A is inserted into the annular groove 1E, the arc-shaped stop piece 9B is positioned on the inner side of the pawl 5, the long edge of the plate spring 4 abuts on the outer side of the pawl 5, the color indicator 9D is positioned at the window 1C, and only one indicator with the same color can be seen through the three windows 1C at the same time under the same state, and indicators with different colors can be seen after the adjusting knob 9 is rotated; the color indicators 9D, the half ball seats 9C and the arc-shaped stoppers 9B are in one-to-one correspondence in position in the circumferential direction; and the arc-shaped stopper 9B is located radially outside the ratchet 6A.
The application method of the medical wheelchair comprises the following steps:
free rotation state of the rear wheel: as shown in fig. 8, the adjustment knob 9 is rotated to abut the arc-shaped stopper 9B against the inside of the pawl 5, thereby lifting the pawl 5 so that the pawl 5 is not engaged with the ratchet 6A and the pawl 5 is not restrained from rotating in the ratchet 6A, and the rotational movement of the rear wheel shaft 12 is not restricted so that the rear wheel is in a freely rotating state.
The one-way rotation state of the rear wheel: as shown in fig. 9, the adjusting knob 9 is rotated to make the arc-shaped stop piece 9B not contact with the pawl 5, and the pawl 5 makes the ratchet wheel 6A and the pawl 5 in a normal meshing state under the action of the plate spring 4, so that the rear wheel shaft 12 can only rotate in one direction, and the rear wheel can only move forward and can not move backward.
In the rear wheel locking state, as shown in fig. 10, the adjustment knob 9 is rotated to bring the arc-shaped stopper 9B into contact with the other pawl 5 adjacent thereto and bring the arc-shaped stopper 9B into abutment against the outside of the other pawl 5, thereby locking the 3 pawls 5 in a position in which they are engaged with the ratchet 6A, so that the rear wheel shaft 12 is locked so as not to be able to rotate, and the rear wheel is in a state in which it is not able to advance nor retreat, i.e., the wheelchair is locked in place.
Meanwhile, the mutual matching of the ball 3 and the hemispherical seat 9C enables the ball 3 and the hemispherical seat 9C to correspond to a state of rear wheel rotation each time, so that a patient can conveniently control the state of the wheelchair, and the operation is simple; meanwhile, the color of the color indicator 9D can be seen from the window 1C, so that the patient can know the using state of the wheelchair more clearly and simply, for example, when the patient sees the color indicator as green from the window 1C, the wheelchair is in a free rotation state; when the patient sees the color indicator as yellow from the window 1C, the wheelchair is in a state that the wheelchair can only move forward but can not move backward; when the patient sees the color indicator red from the window 1C, the wheelchair is in the locked state.
Claims (7)
1. A medical wheelchair is characterized by comprising front wheels, rear wheels, a seat and a mechanical braking device, wherein the front wheels rotate universally and are used for controlling the direction, the rear wheels are used for manually driving the wheelchair to move, and the mechanical braking device is arranged on a hub of the rear wheels;
the mechanical braking device comprises a base (1), a braking device and an adjusting knob (9), wherein the base (1) is connected to a hub of a rear wheel of the medical wheelchair, the braking device is positioned between the base (1) and the adjusting knob (9), and a rear wheel shaft (12) of the wheelchair penetrates through the base (1) to be connected with the braking device;
the base (1) is in a circular truncated cone shape, 6 screw holes (1B) are uniformly distributed on the circumference of a small end plane of the circular truncated cone at one end, far away from a rear wheel hub, of the base (1), 3 platforms (1D) formed by removing materials downwards from the small end plane are arranged on the small end plane, and each platform (1D) is located between two screw holes (1B); an annular groove (1E) is formed in the small end plane, and a window (1C) is formed between the inner wall of the platform (1D) and the annular groove (1E);
the braking device comprises ratchet wheels (6A) and pawls (5), the ratchet wheels (6A) and the shaft sleeve (6) are integrally arranged, the number of the pawls (5) is 3, the pawls are uniformly distributed around the circumference of the ratchet wheels (6A), and plate springs (4) are arranged on the outer sides of the 3 pawls (5); the ratchet wheel (6A), the pawl (5) and the plate spring (4) are all positioned in grooves with corresponding shapes of the plane of the small end of the circular truncated cone;
the state of the brake device is changed by rotating the adjusting knob (9), so that the rear wheel of the wheelchair is switched back and forth among a free rotation state, a forward only state and a state of locking forward and backward.
2. Medical wheelchair according to claim 1, characterised in that the leaf spring is U-shaped, wherein the U-shape is not of uniform length at both ends, wherein the long side rests against the outside of the pawl (5); the ball-shaped counter bore is characterized in that counter bores (1F) are uniformly distributed on the plane of the small end, a ball (3) is arranged in each counter bore, and a spring (2) is arranged between each ball (3) and the bottom of each counter bore (1F).
3. The medical wheelchair as claimed in claim 1, wherein the adjusting knob (9) comprises an upper grip part, a lower display part and a bottom connecting part, the lower display part comprising 3 sets of color indicators (9D), each set comprising one green indicator, one red indicator and one yellow indicator, the 3 sets of color indicators being circumferentially distributed around the circumference of the lower display part.
4. Medical wheelchair according to claim 3, characterized in that the bottom connection comprises 3 sets of half-ball seats (9C) arranged on the bottom of the adjusting knob (9), each set of half-ball seats (9C) being in one-to-one correspondence with each set of color indicators on the circumference, each set of half-ball seats (9C) being in 3 sets, and each set of half-ball seats (9C) being in one-to-one correspondence with one of the balls (3), each set of half-ball seats (9C) cooperating with only one ball (3) in the same state.
5. The medical wheelchair as claimed in claim 3, characterised in that the bottom connection further comprises 3 arc-shaped stops (9B) protruding from the bottom of the adjustment knob (9), the arc-shaped stops (9B) being evenly distributed along the circumference of the bottom of the adjustment knob (9), and the centre of each arc-shaped stop (9B) coinciding with the centre of the adjustment knob (9).
6. The medical wheelchair as claimed in claim 3, wherein the bottom connecting portion further comprises three coupling teeth (9A) protruding from the bottom of the lower display portion, the three coupling teeth (9A) being uniformly distributed around the circumferential direction, the coupling teeth (9A) being inserted into the annular groove (1E), and the bottom of the lower display portion being axially higher than the bottom of the adjusting knob (9).
7. The medical wheelchair as claimed in any one of claims 1 to 6, wherein the mechanical brake device further comprises a fixing plate (7), the fixing plate (7) abuts against the boss of the lower display part, 6 through holes (7A) are evenly distributed on the circumference of the fixing plate (7), and a screw (8) passes through the through hole (7A) to be connected with the screw hole (1B) for fixedly connecting the adjusting knob (9) with the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010252740.XA CN111150570B (en) | 2020-04-02 | 2020-04-02 | Medical wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010252740.XA CN111150570B (en) | 2020-04-02 | 2020-04-02 | Medical wheelchair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111150570A true CN111150570A (en) | 2020-05-15 |
| CN111150570B CN111150570B (en) | 2020-10-13 |
Family
ID=70567688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010252740.XA Expired - Fee Related CN111150570B (en) | 2020-04-02 | 2020-04-02 | Medical wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111150570B (en) |
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| SU1210824A1 (en) * | 1984-04-05 | 1986-02-15 | Shkurova Diana F | Wheel-chair |
| CN1040140A (en) * | 1988-08-08 | 1990-03-07 | 奥古斯J·里姆 | Wheelchair |
| CN2109835U (en) * | 1991-12-30 | 1992-07-15 | 刘天顺 | Auto-walk lioght wheelchair |
| GB2278582A (en) * | 1993-06-04 | 1994-12-07 | Wu Johnson | Wheelchair drive mechanism |
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| CN201399055Y (en) * | 2009-03-20 | 2010-02-10 | 武汉大学 | Hand-operated stair climbing wheelchair crank handle device |
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| JP2013046655A (en) * | 2011-08-29 | 2013-03-07 | Niigata Univ | Wheelchair with movement prevention device |
| CN203176342U (en) * | 2013-04-12 | 2013-09-04 | 张安兵 | Hill starting assisting device of manual-gear automobile and automobile |
| CN103325637A (en) * | 2012-03-17 | 2013-09-25 | Abb股份公司 | Electrical installation technology input device with rotary control part |
| CN204070221U (en) * | 2014-07-08 | 2015-01-07 | 宁波海宝渔具有限公司 | A kind of spool can the fishing reel of unidirectional spline |
| CN105774878A (en) * | 2016-05-30 | 2016-07-20 | 安徽工业大学 | Trolley braking device capable preventing backward sliding and reducing speed |
| CN206427018U (en) * | 2017-02-10 | 2017-08-22 | 重庆幻速汽车配件有限公司 | A kind of electric car halting mechanism |
| CN108433892A (en) * | 2018-04-02 | 2018-08-24 | 上海理工大学 | Portable wheel chair power assisting device |
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2020
- 2020-04-02 CN CN202010252740.XA patent/CN111150570B/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4560181A (en) * | 1984-01-30 | 1985-12-24 | Design Loft, Inc. | Wheelchair operated by hand pedalled reciprocating motion |
| SU1210824A1 (en) * | 1984-04-05 | 1986-02-15 | Shkurova Diana F | Wheel-chair |
| CN1040140A (en) * | 1988-08-08 | 1990-03-07 | 奥古斯J·里姆 | Wheelchair |
| CN2109835U (en) * | 1991-12-30 | 1992-07-15 | 刘天顺 | Auto-walk lioght wheelchair |
| GB2278582A (en) * | 1993-06-04 | 1994-12-07 | Wu Johnson | Wheelchair drive mechanism |
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| CN2709215Y (en) * | 2003-11-05 | 2005-07-13 | 宜炫企业有限公司 | Castor structure |
| CN1944158A (en) * | 2006-10-30 | 2007-04-11 | 中国农业大学 | Mechanical creeping walking mechanism |
| CN200991370Y (en) * | 2006-12-29 | 2007-12-19 | 西北工业大学 | Backing-resistant device of wheeled chair |
| CN201399055Y (en) * | 2009-03-20 | 2010-02-10 | 武汉大学 | Hand-operated stair climbing wheelchair crank handle device |
| CN102370548A (en) * | 2011-07-25 | 2012-03-14 | 卫美恒(苏州)医疗器械有限公司 | Single-arm wheelchair |
| JP2013046655A (en) * | 2011-08-29 | 2013-03-07 | Niigata Univ | Wheelchair with movement prevention device |
| CN103325637A (en) * | 2012-03-17 | 2013-09-25 | Abb股份公司 | Electrical installation technology input device with rotary control part |
| CN203176342U (en) * | 2013-04-12 | 2013-09-04 | 张安兵 | Hill starting assisting device of manual-gear automobile and automobile |
| CN204070221U (en) * | 2014-07-08 | 2015-01-07 | 宁波海宝渔具有限公司 | A kind of spool can the fishing reel of unidirectional spline |
| CN105774878A (en) * | 2016-05-30 | 2016-07-20 | 安徽工业大学 | Trolley braking device capable preventing backward sliding and reducing speed |
| CN206427018U (en) * | 2017-02-10 | 2017-08-22 | 重庆幻速汽车配件有限公司 | A kind of electric car halting mechanism |
| CN108433892A (en) * | 2018-04-02 | 2018-08-24 | 上海理工大学 | Portable wheel chair power assisting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111150570B (en) | 2020-10-13 |
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