CN201453541U - Novel wheel chair for climbing stairs - Google Patents
Novel wheel chair for climbing stairs Download PDFInfo
- Publication number
- CN201453541U CN201453541U CN2009200862510U CN200920086251U CN201453541U CN 201453541 U CN201453541 U CN 201453541U CN 2009200862510 U CN2009200862510 U CN 2009200862510U CN 200920086251 U CN200920086251 U CN 200920086251U CN 201453541 U CN201453541 U CN 201453541U
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- China
- Prior art keywords
- wheelchair
- wheel
- handle
- climbing
- stair climbing
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- Expired - Fee Related
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Abstract
The utility model provides a novel wheel chair for climbing stairs. A crank connecting rod mechanism is driven to drive a stair climbing rod to do telescopic motion by rotating a stair climbing handle so as to realize the stair climbing function of the wheel chair; the novel wheel chair for climbing stairs is provided with a front guide wheel, and a ratchet wheel brake device is installed on a main shaft of the wheel chair and is matched with a brake device of the wheel chair so as to reduce the speed when the wheel chair goes downstairs; and the novel wheel chair for climbing stairs is provided with a ratchet wheel mechanism on the handle, thereby realizing the self-locking of the handle during climbing stairs and preventing the reversal of the handle without applying force to fully ensure the safety of a rider. Compared with other existing patents, the utility model has simpler structure and lower manufacture cost and can easily convert a stair climbing state into a flat ground traveling state and easily convert the flat ground traveling state into the stair climbing state.
Description
Technical field
This utility model 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 in the utility model 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 scheme that this utility model adopted 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.
The novel stair climbing wheelchair that this utility model provides 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.This utility model is compared with existing other patent, 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 utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the structural representation under the walking states of this utility model plane;
Fig. 2 is the structural representation that this utility model is climbed the building state;
Fig. 3 is the structural representation that this utility model is climbed the building state;
Fig. 4 is the structural representation that this utility model is climbed the building state;
Fig. 5 is the structural representation that this utility model 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. 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 |
|---|---|---|---|
| CN2009200862510U CN201453541U (en) | 2009-06-04 | 2009-06-04 | Novel wheel chair for climbing stairs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200862510U CN201453541U (en) | 2009-06-04 | 2009-06-04 | Novel wheel chair for climbing stairs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201453541U true CN201453541U (en) | 2010-05-12 |
Family
ID=42380881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200862510U Expired - Fee Related CN201453541U (en) | 2009-06-04 | 2009-06-04 | Novel wheel chair for climbing stairs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201453541U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104382705A (en) * | 2014-11-21 | 2015-03-04 | 王正东 | Off-road stair-climbing wheelchair capable of realizing wheel and track switching |
-
2009
- 2009-06-04 CN CN2009200862510U patent/CN201453541U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104382705A (en) * | 2014-11-21 | 2015-03-04 | 王正东 | Off-road stair-climbing wheelchair capable of realizing wheel and track switching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100512 Termination date: 20100604 |