CN101564337A - Novel stair climbing wheelchair - Google Patents
Novel stair climbing wheelchair Download PDFInfo
- Publication number
- CN101564337A CN101564337A CNA2009100624466A CN200910062446A CN101564337A CN 101564337 A CN101564337 A CN 101564337A CN A2009100624466 A CNA2009100624466 A CN A2009100624466A CN 200910062446 A CN200910062446 A CN 200910062446A CN 101564337 A CN101564337 A CN 101564337A
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- wheelchair
- stair climbing
- handle
- wheel
- climbing
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Abstract
The invention discloses a novel stair climbing wheelchair. A stair climbing handle is rotated to drive a crank-link mechanism to drive a stair climbing rod to conduct stretching motion, thus realizing the stair climbing function of the wheelchair; a front guide wheel is arranged and a ratchet braking device is arranged on a main shaft of the wheelchair to cooperate with a self-owned braking device of the wheelchair, thus realizing the deceleration of the wheelchair when going downstairs; a ratchet mechanism is arranged on the handle so that the self-locking of the handle can be realized when climbing stairs, thus avoiding the reversion of the handle when no power is imposed and guaranteeing the safety of a user. Compared with other existing patents, the wheelchair has simpler structure and lower manufacturing cost; in addition, the wheelchair can easily switch from a stair climbing status to a flat ground running status as well as easily switch from the flat ground running status to the stair climbing status.
Description
Technical field
The present invention relates to a kind of wheelchair, especially a kind of novel stair climbing wheelchair.
Background technology
For some old peoples and lower limb the disabled, wheelchair is their requisite walking-replacing tool.But, because common wheelchair does not have the function of stair climbing on the market, thereby having limited its scope of application widely, the degree of depth and the range that make it participate in society are influenced deeply.Once there was the design of many stair climbing wheelchairs in China, but all too complicated.At present, abroad the patent of invention of existing many kinds of stair climbing wheelchairs is come out.Yet, their most complex structures, very expensive, price is not suitable for the ability to shoulder economically of developing country's user all at several ten thousand dollars.
Summary of the invention
Technical problem to be solved by this invention provides a kind of novel stair climbing wheelchair, can be easy to be transformed into from the level walking state state of stair activity, realizes the function of wheelchair stair activity with cheaper cost.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of novel stair climbing wheelchair, comprise wheelchair, bull wheel is installed in rear under the wheelchair, little front-wheel is installed in the wheelchair inferoanterior by linkage, is equipped with on the wheelchair to climb the building handle, climb the building handle by toggle with climb the building bar and be connected, the wheelchair below is equipped with front jocket wheel, and front jocket wheel is connected with the front jocket wheel handle by kinematic link.
Described climbing also is equipped with ratchet mechanism on the building handle.
Described climbing on the building bar is equipped with spring.
On the described little front-wheel spring is installed.
The ratchet brake gear is installed on the main shaft of wheelchair.
Described front jocket wheel is for to be provided with crawler belt outside a plurality of the wheel.
Novel stair climbing wheelchair provided by the invention is climbed the building handle by rotation, drive toggle and drive and climb the building bar and carry out stretching motion, thereby realized wheelchair climb the building function; By front jocket wheel is set, and on the main shaft of wheelchair, the ratchet brake gear is installed, thereby has realized that wheelchair slows down when going downstairs; By ratchet mechanism is installed on handle, when climbing the building, can realize the self-locking of handle like this, the counter-rotating of handle when avoiding not having an effect is with abundant assurance occupant's safety.The present invention compares with existing other patent, and its structure is more simple, manufacturing cost is also more cheap, and it can be transformed into the level walking state from the stair climbing state at an easy rate, can also be easy to be transformed into the stair climbing state from the level walking state.It is very suitable for the wheelchair user, is beneficial to popularization.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation under the walking states of plane of the present invention;
Fig. 2 is the structural representation that the present invention climbs the building state;
Fig. 3 is the structural representation that the present invention climbs the building state;
Fig. 4 is the structural representation that the present invention climbs the building state;
Fig. 5 is the structural representation that the present invention is transformed into downstairs movement state.
The specific embodiment
Extremely shown in Figure 5 as Fig. 1, a kind of novel stair climbing wheelchair, comprise wheelchair 7, bull wheel 5 is installed in 7 times rears of wheelchair, little front-wheel 4 is installed in wheelchair 7 inferoanteriors by linkage, is equipped with on the wheelchair 7 and climbs building handle 8, climb building handle 8 by toggle 1 with climb building bar 2 and be connected, wheelchair 7 belows are equipped with front jocket wheel 3, and front jocket wheel 3 is connected with front jocket wheel handle 6 by kinematic link 10.
Described climbing also is equipped with ratchet mechanism 9 on the building handle 8.
Described climbing on the building bar 2 is equipped with spring.
On the described little front-wheel 4 spring is installed.
The ratchet brake gear is installed on the main shaft of wheelchair 7.
Described front jocket wheel 3 is for to be provided with crawler belt outside a plurality of the wheel.
When moving on the level land, little front-wheel 4 and bull wheel 5 keep in touch with ground, climb building bar 2 and are contracted in wheelchair 7 belows with front jocket wheel 3, and this moment, the use of wheelchair 7 was identical with common wheelchair.
According to national building standard, stair must satisfy the height h≤15cm of each grade step, the width L 〉=26cm of each grade step.Adopt: shoulder height h=15cm, step width L=26cm herein.
When stair climbing, pull front jocket wheel handle 6, put down front jocket wheel 3 to stairway step, wheelchair rolls forward and runs into step until little front-wheel 4, because of little front-wheel 4 is to be connected with wheelchair 7 by linkage, and which is provided with spring, the little front-wheel 4 of wheelchair is run into to be upspring behind the step and is folded to the wheelchair below.
As shown in Figure 2, rotate counterclockwise by staff and to climb building handle 8, climb building handle 8 and drive crank and rocker mechanisms 1, crank and rocker mechanism 1 drives climbs the pulling force that building bar 2 overcomes spring, and its lower end contacts with ground.
As shown in Figure 3, be rotated further and climb building handle 8, crank and rocker mechanism 1 drive is climbed building bar 2 and is stretched, and the bull wheel 5 of wheelchair 7 leaves step and is raised to the upper level step, thereby has finished climbing of one-level step.Climb the ratchet mechanism 9 that building handle 8 is provided with, can realize self-locking, guaranteed that climbing building handle 8 at the intermittence that hands is had an effect can not reverse.The brake gear of wheelchair has two covers, and the one, ratchet mechanism brake gear, the one, friction-type brake gear.The friction-type brake gear is equipped with on the wheelchair agent structure, and this device mainly is that the wheelchair occupant uses when the level land.In the ratchet brake gear, the parking brake brake is installed in by the wheelchair armrest, ratchet mechanism is sleeved on the wheelchair main shaft, the outer ring of ratchet mechanism is meshed with the braking chain, braking chain one end is connected with brake cable, the other end is connected with extension spring, and the other end of cable wire is connected with keep plate, keep plate and the braked wheel interoperation that is positioned on the rear axle.Wheelchair is gone upstairs in the process, and the one-directional rotation of ratchet mechanism control wheelchair bull wheel 5 can realize the go upstairs self-locking of step of wheelchair.The self-locking device of wheelchair 7 locks to guarantee that it can not tumble downstairs automatically to wheelchair 7.
As shown in Figure 5, in the process of going downstairs, pull front jocket wheel handle 6, put down front jocket wheel 3 to stairway step, adopt this moment the ratchet mechanism brake gear to cooperate the brake gear of wheelchair self to control the speed that wheelchair is gone downstairs, hands is pinched brake, and extension spring is drawn back, the wheelchair main shaft drives on the ratchet outer ring cable wire action that the braking chain pulling with its engagement is attached thereto, thereby the bull wheel of control wheelchair and front jocket wheel are realized brake control.
Claims (6)
1, a kind of novel stair climbing wheelchair, comprise wheelchair (7), bull wheel (5) is installed in rear under the wheelchair (7), it is characterized in that: little front-wheel (4) is installed in wheelchair (7) inferoanterior by linkage, be equipped with on the wheelchair (7) and climb building handle (8), climb building handle (8) by toggle (1) with climb building bar (2) and be connected, wheelchair (7) below is equipped with front jocket wheel (3), front jocket wheel (3) is connected with front jocket wheel handle (6) by kinematic link (10).
2, novel stair climbing wheelchair according to claim 1 is characterized in that: described climbing also is equipped with ratchet mechanism (9) on the building handle (8).
3, novel stair climbing wheelchair according to claim 1 is characterized in that: described climbing on the building bar (2) is equipped with spring.
4, novel stair climbing wheelchair according to claim 1 is characterized in that: on the described little front-wheel (4) spring is installed.
5, novel stair climbing wheelchair according to claim 1 is characterized in that: on the main shaft of wheelchair (7) the ratchet brake gear is installed.
6, novel stair climbing wheelchair according to claim 1 is characterized in that: described front jocket wheel (3) is for to be provided with crawler belt outside a plurality of the wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100624466A CN101564337B (en) | 2009-06-04 | 2009-06-04 | Novel stair climbing wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100624466A CN101564337B (en) | 2009-06-04 | 2009-06-04 | Novel stair climbing wheelchair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101564337A true CN101564337A (en) | 2009-10-28 |
| CN101564337B CN101564337B (en) | 2011-06-08 |
Family
ID=41280815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100624466A Expired - Fee Related CN101564337B (en) | 2009-06-04 | 2009-06-04 | Novel stair climbing wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101564337B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188310A (en) * | 2011-05-25 | 2011-09-21 | 浙江飞神车业有限公司 | Electric wheelchair with obstacle clearing function |
| CN102283749A (en) * | 2011-06-27 | 2011-12-21 | 胡达广 | Multi-road condition electric wheel chair |
| CN103892970A (en) * | 2014-04-10 | 2014-07-02 | 赵树名 | Robotic wheelchair |
| CN111956403A (en) * | 2020-09-03 | 2020-11-20 | 河南中医药大学 | Intracardiac branch of academic or vocational study first aid transfer device |
| CN112744281A (en) * | 2019-10-31 | 2021-05-04 | 张效琪 | Electric baby carriage and baby carriage with elastic main wheel provided with crawler-type front guide wheel and rear auxiliary wheel and capable of being mounted on bus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103536404B (en) * | 2013-11-08 | 2016-03-02 | 梁德福 | A kind of multi-functional stair-climbing wheel chair |
| CN104382706B (en) * | 2014-11-25 | 2017-01-18 | 广西大学 | Deformable wheel of stair climbing wheelchair |
-
2009
- 2009-06-04 CN CN2009100624466A patent/CN101564337B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188310A (en) * | 2011-05-25 | 2011-09-21 | 浙江飞神车业有限公司 | Electric wheelchair with obstacle clearing function |
| CN102188310B (en) * | 2011-05-25 | 2013-05-29 | 浙江飞神车业有限公司 | Electric wheelchair with obstacle clearing function |
| CN102283749A (en) * | 2011-06-27 | 2011-12-21 | 胡达广 | Multi-road condition electric wheel chair |
| CN102283749B (en) * | 2011-06-27 | 2013-04-03 | 胡达广 | Multi-road condition electric wheel chair |
| CN103892970A (en) * | 2014-04-10 | 2014-07-02 | 赵树名 | Robotic wheelchair |
| CN112744281A (en) * | 2019-10-31 | 2021-05-04 | 张效琪 | Electric baby carriage and baby carriage with elastic main wheel provided with crawler-type front guide wheel and rear auxiliary wheel and capable of being mounted on bus |
| CN111956403A (en) * | 2020-09-03 | 2020-11-20 | 河南中医药大学 | Intracardiac branch of academic or vocational study first aid transfer device |
| CN111956403B (en) * | 2020-09-03 | 2022-08-26 | 河南中医药大学 | Intracardiac branch of academic or vocational study first aid transfer device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101564337B (en) | 2011-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20140604 |