CN113133878A - Telescopic variable-angle stair climbing wheelchair - Google Patents
Telescopic variable-angle stair climbing wheelchair Download PDFInfo
- Publication number
- CN113133878A CN113133878A CN202110527945.9A CN202110527945A CN113133878A CN 113133878 A CN113133878 A CN 113133878A CN 202110527945 A CN202110527945 A CN 202110527945A CN 113133878 A CN113133878 A CN 113133878A
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- Prior art keywords
- push rod
- seat
- wheel
- main support
- telescopic
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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
- A61G5/06—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
- A61G5/06—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
- A61G5/066—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 with endless belts
-
- 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
-
- 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
- A61G5/1056—Arrangements for adjusting the seat
- A61G5/1059—Arrangements for adjusting the seat adjusting the height of the seat
-
- 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
- A61G5/1089—Anti-tip devices
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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)
- Handcart (AREA)
Abstract
The invention discloses a telescopic variable-angle stair climbing wheelchair which comprises a motor, crawler wheels, a road leveling driving wheel, a first seat balance push rod, a crawler wheel push rod, a road leveling driving wheel push rod, a seat push rod, a second seat balance push rod, a seat, a main support telescopic push rod, a battery, a road leveling driven wheel push rod and a main support. The invention has simple and convenient manufacturing process and convenient production. The four-wheel-drive four-track driving mode is adopted, so that the speed of going upstairs and downstairs can be effectively increased on the premise of ensuring safety. Due to the scalability and the angle-variable property of the crawler wheels and the connection and rotation characteristics of the seat, the wheelchair has the advantages of more reasonable and stable structure, more complete safety performance and higher safety factor, adopts a straight-up and straight-down traveling mode, is convenient to operate, and has stronger visual safety for passengers. The invention has the characteristic of simple and convenient operation and is suitable for popularization and application.
Description
Technical Field
The invention belongs to the technical field of machinery, and relates to a telescopic variable-angle stair climbing wheelchair, in particular to a four-wheel-drive four-track telescopic variable-angle stair climbing wheelchair.
Background
The existing wheelchairs comprise common hand-push wheelchairs and electric wheelchairs which run on the flat ground, electric wheelchairs/stair climbing machines which can climb stairs, full-intelligent control wheelchairs which can run on the flat ground and can go up stairs and steps, full-caterpillar wheelchairs which have certain complex terrain cross-country capability, and the like.
The wheelchair/stair climbing mechanism with two functions of walking on flat ground and climbing stairs in the market at present adopts one section of crawler chair to be installed downwards or installed after a chair is installed, one telescopic rod controls mode conversion, and no automatic seat balance adjusting device is provided. The biggest defects of the wheelchair are that: when a healthy person is required to operate to stably go up and down stairs, an operator is manually responsible for the stable transition of the angle of the seat when going up to the last step or going down to the first step. Otherwise, the rider will have a large angle of abrupt transition and contact with the ground when he goes up to the last step. From the selection of the upstairs and downstairs mode, the rider cannot sit on the seat comfortably and lies on the wheelchair half-way and continuously changes the angle of lying on his back with the change of the upstairs and downstairs and the change of the angle of stairs. When the chair is in the mode of going upstairs and downstairs, the telescopic rod extends out of the front end of the chair to face upwards, and the angle is changed to the position that the rear wheels exceed the height of the crawler belt. The height between the front end of the chair and the steps and the ground is increased, the legs of a user are suspended, and the chair is supported by the telescopic rod and swings between the steps to greatly increase the unsafe feeling of the user. The upper step and the lower step can not be operated in a direction; the power device has single function, simple control and the like.
Disclosure of Invention
The invention provides a telescopic variable-angle stair climbing wheelchair, which is used for the barrier-free travel of the old and the disabled with inconvenient actions.
The technical scheme is as follows:
a telescopic variable-angle stair climbing wheelchair comprises a motor 1, a crawler wheel 2, a road leveling driving wheel 3, a first seat balance push rod 4, a crawler wheel push rod 5, a road leveling driving wheel push rod 6, a seat push rod 7, a second seat balance push rod 8, a seat 9, a main support telescopic push rod 10, a battery 11, a road leveling driven wheel 12, a road leveling driven wheel push rod 13 and a main support 14, wherein the motor 1 and the crawler wheel 2 are connected through a motor shaft, the road leveling driving wheel 3 is connected with the motor shaft through a transmission chain, the first seat balance push rod 4 and the second seat balance push rod 8 are connected with the seat 9 through supports, the crawler wheel push rod 5 is connected with the crawler wheel 2 through the supports, the road leveling driving wheel push rod 6 is connected with the road leveling driving wheel 3 through the supports, the main support telescopic push rod 10 is connected with a front power system and a rear power system through the main support 14, the seat push rod 7 is fixed on the supports of the seat 9, the battery 11 is fixedly arranged on the main bracket 14 above the level road driven wheel 12 and the level road driven wheel push rod 13, the level road driven wheel 12 is connected with the main bracket 14, and the level road driven wheel push rod 13 is connected with the level road driven wheel 12 through a bracket.
Preferably, one end of the track wheel push rod 5 is connected with the main support 14 through a support, and the other end of the track wheel push rod 5 is connected with the track wheel 2 through a bearing and a movable connecting rod, so that the track wheel 2 can rotate up and down for 17.5 degrees around the shaft of the motor 1.
Further, the motor 1, the crawler wheel 2 and the crawler wheel push rod 5 are divided into a front group and a rear group to be connected with the front end and the rear end of the main support 14, the main support 14 is of a front telescopic type and a rear telescopic type, and two ends of the main support telescopic push rod 10 are respectively connected with the front end and the rear end of the main support 14, so that the longest effect of the front crawler wheel and the rear crawler wheel can be achieved when going upstairs and downstairs.
Further, the seat 9 is connected with the main support 14 through a rotating fulcrum below the pedal plate, so that the seat 9 rotates angularly around the rotating fulcrum below the pedal plate, and the distance of front and back change of the gravity center of the seat 9 is longer when going upstairs and downstairs. One end of the first seat balance push rod 4 is connected with the main bracket 14 through a support, one end of the first seat balance push rod is connected with one end of the second seat balance push rod 8 through a bearing and a shaft, and the other end of the second seat balance push rod 8 is connected with the seat 9. The seat 9 and the main support 14 form a triangular support loop all the time when going upstairs and downstairs, and the shaking of the seat 9 is reduced to the maximum extent.
The invention has the beneficial effects that:
the invention has simple and convenient manufacturing process and convenient production.
The invention adopts a four-drive four-track driving mode, and can more effectively increase the speed of going upstairs and downstairs on the premise of ensuring safety.
Due to the scalability and the angle-variable property of the crawler wheels and the connection and rotation characteristics of the seat, the structure of the wheelchair is more reasonable and stable, the safety performance is more complete, and the safety coefficient is higher.
The invention adopts a running mode of right-up and right-down, is convenient to operate and has stronger visual safety for passengers.
The invention has simple operation and only has four operation modes: the mode of stair, snow ground obstacle crossing mode, level road mode, the mode of getting on or off the bus, have easy and simple to handle characteristics, be fit for popularizing and applying.
Drawings
FIG. 1 is a schematic view of the lower plane structure of the telescopic variable angle stair-climbing wheelchair of the present invention;
FIG. 2 is a schematic side view of the track of the wheelchair of the present invention;
FIG. 3 is a schematic view of the driving and driven wheels of the telescopic variable angle stair-climbing wheelchair of the present invention;
FIG. 4 is a schematic view of going upstairs;
FIG. 5 is a schematic view of the upstairs process;
FIG. 6 is a schematic view of going downstairs;
fig. 7 is a schematic view of the downstairs process.
Detailed Description
The technical solutions of the present invention will be described in further detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1, a telescopic variable angle stair climbing wheelchair comprises a motor 1, a crawler wheel 2, a road leveling driving wheel 3, a first seat balance push rod 4, a crawler wheel push rod 5, a road leveling driving wheel push rod 6, a seat push rod 7, a second seat balance push rod 8, a seat 9, a main bracket telescopic push rod 10, a battery 11, a road leveling driven wheel 12, a road leveling driven wheel push rod 13 and a main bracket 14, wherein the motor 1 and the crawler wheel 2 are connected through a motor shaft, the road leveling driving wheel 3 is connected with the motor shaft through a transmission chain, the first seat balance push rod 4 and the second seat balance push rod 8 are connected with the seat 9 through brackets, the crawler wheel push rod 5 is connected with the crawler wheel 2 through brackets, the road leveling driving wheel push rod 6 is connected with the road leveling driving wheel 3 through brackets, the main bracket telescopic push rod 10 is connected with a front power system and a rear power system through the main bracket 14, the seat push rod 7 is fixed on the brackets of the seat 9, the battery 11 is fixedly arranged on the main bracket 14 above the level road driven wheel 12 and the level road driven wheel push rod 13, the level road driven wheel 12 is connected with the main bracket 14, and the level road driven wheel push rod 13 is connected with the level road driven wheel 12 through a bracket.
One end of the crawler wheel push rod 5 is connected with the main support 14 through a support, and the other end of the crawler wheel push rod 5 is connected with the crawler wheel 2 through a bearing and a movable connecting rod, so that the crawler wheel 2 can rotate up and down for 17.5 degrees around the shaft of the motor 1.
The motor 1, the crawler wheel 2 and the crawler wheel push rod 5 are divided into a front group and a rear group to be connected with the front end and the rear end of the main support 14, the main support 14 is of a front telescopic type and a rear telescopic type, two ends of the main support telescopic push rod 10 are respectively connected with the front end and the rear end of the main support 14, and the front crawler wheel and the rear crawler wheel can achieve the longest effect when going upstairs and downstairs.
The seat 9 is connected with the main support 14 through a rotating fulcrum below the pedal plate, so that the seat 9 rotates angularly by taking the rotating fulcrum below the pedal plate as a circle center, and the distance of front and back change of the gravity center of the seat 9 is longer when going upstairs and downstairs. One end of the first seat balance push rod 4 is connected with the main bracket 14 through a support, one end of the first seat balance push rod is connected with one end of the second seat balance push rod 8 through a bearing and a shaft, and the other end of the second seat balance push rod 8 is connected with the seat 9. The seat 9 and the main support 14 form a triangular support loop all the time when going upstairs and downstairs, and the shaking of the seat 9 is reduced to the maximum extent. The wheelchair has a width of 68 cm, a length of 86 cm and 126 cm at the maximum and a height of 140 cm.
Referring to fig. 2, the track wheel 2 forms an inner angle of 17.5 degrees and an outer angle of 55 degrees with the ground in the stair mode.
When the front end of the wheelchair detects going upstairs, the second seat balance push rod 8 works to keep the seat horizontal, the main support telescopic push rod 10 works to push out 40 cm to enable the effective working distance of the front and rear crawler wheel pieces 2 to be 110 cm, and meanwhile, when a certain angle is reached, the crawler wheel push rod 5 works to push out to enable the lower plane of the crawler wheel pieces 2 to be parallel and consistent with the inclined plane of the stairs, as shown in fig. 4. When the front end of the wheelchair detects the top end of a stair, the track wheel push rod 5 works and retracts to enable the lower plane of the track wheel 2 and the linear direction of the main support telescopic push rod piece 10 to form an inner included angle of 17.5 degrees, the sum of the front inner included angle and the rear inner included angle is 35 degrees, and a dynamic included angle is formed between the track wheel push rod and the stair, so that the wheelchair can automatically and stably guide the wheelchair in the forward moving process, as shown in fig. 5. After the upstairs process is finished, the main bracket telescopic push rod 10 automatically retracts by 40 cm, and the wheelchair returns to the minimum size, as shown in figure 2.
The invention has simple operation and only has four operation modes: a stair mode, a snow obstacle crossing mode, a level road mode and a getting on/off mode.
Stair mode:
1. when going upstairs and downstairs, under the effect of main support telescopic push rod 10 and first seat balance push rod 4, second seat balance push rod 8, seat 9 uses the pivot of running-board below as the centre of a circle to carry out angular rotation, makes seat 9 focus maximize antedisplacement when going upstairs, and focus maximize retruses when going downstairs, guarantees the security of wheelchair, lets the person of taking have more the sense of security in going.
2. The triangular supporting loop formed by the seat 9 and the main bracket 14 reduces the shaking of the seat 9 to the maximum extent, and further increases the safety of the passengers.
3. When going upstairs and finishing and starting downstairs, because the crawler wheel 2 inwards packs up and forms 17.5 degrees of inner included angle and 55 degrees of outer included angle, the transition at this moment is simpler and more convenient, steady, and the security is higher.
4. When going upstairs and downstairs, the wheelchair can be ensured not to turn over when being deviated left and right within a certain range due to the advantages of the width and the length of the wheelchair.
Snow obstacle crossing mode:
the lower plane of the crawler wheel 2 is parallel to the ground under the action of the crawler wheel push rod 5, so that the crawler wheel can walk in snowfields and can cross a 35 cm ditch barrier.
A road leveling mode:
the level driving wheel 3 and the level driven wheel 12 extend outwards under the action of the level driving wheel push rod 6 and the level driven wheel push rod 13, so that the crawler wheel 2 is separated from the ground, electricity is saved when the driver walks on a level road, and the driver feels more comfortable.
Getting on and off modes:
the height of the seat 9 is to be the lowest under the action of the seat push rod 7, the first seat balance push rod 4, the level road driving wheel push rod 6 and the level road driven wheel push rod 13, so that a rider can get on or off the wheelchair conveniently.
When the wheelchair front detects a descent, the seat 9 rests rearwardly against the main support 14 by the member 4 and continues to be downwardly and rearwardly by the action of the overhanging member 10, as shown in figure 6. The working push rod of the component 10 is pushed out by 40 cm, so that the effective working distance of the front and the rear groups of crawler wheel components 2 is changed to 110 cm, and when a certain angle is reached, the component 5 is pushed out to keep the lower plane of the crawler wheel components 2 and the inclined plane of the stairs in parallel and consistent, as shown in figure 7. When the front end of the wheelchair detects the bottom end of the stair, the part 5 works and retracts to enable the outer side of the crawler wheel part 2 and the linear direction of the telescopic push rod part 10 of the main bracket of the wheelchair to form an external included angle of 55 degrees, and a dynamic included angle is formed with the stair, so that the wheelchair can automatically and stably guide and level in the forward moving process. After the stairs are taken down, the back piece 10 is retracted by 40 cm, and the wheelchair returns to the minimum size, as shown in fig. 2.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, and any simple modifications or equivalent substitutions of the technical solutions that can be obviously obtained by those skilled in the art within the technical scope of the present invention are within the scope of the present invention.
Claims (4)
1. The utility model provides a building wheelchair is climbed to flexible become angle formula which characterized in that: the electric energy balance device comprises a motor, a crawler wheel, a road leveling driving wheel, a first seat balance push rod, a crawler wheel push rod, a road leveling driving wheel push rod, a seat push rod, a second seat balance push rod, a seat, a main support telescopic push rod, a battery, a road leveling driven wheel push rod and a main support, wherein the motor and the crawler wheel are connected through a motor shaft, the road leveling driving wheel is connected with the motor shaft through a transmission chain, the first seat balance push rod and the second seat balance push rod are connected with the seat through a support, the crawler wheel push rod is connected with the crawler wheel through a support, the road leveling driving wheel push rod is connected with the road leveling driving wheel through a support, the main support telescopic push rod is connected with a front power system and a rear power system through the main support, the seat push rod is fixed on the support of the seat, and the battery is placed and fixed on the main support above the road leveling driven wheel and the road leveling driven wheel push rod, the level road driven wheel is connected with the main bracket, and the level road driven wheel push rod is connected with the level road driven wheel through the bracket.
2. The telescopic variable angle stair climbing wheelchair as claimed in claim 1, wherein: one end of the crawler wheel push rod is connected with the main support through the support, and the other end of the crawler wheel push rod is connected with the crawler wheel through the bearing and the movable connecting rod, so that the crawler wheel can rotate up and down for 17.5 degrees around a shaft of the motor.
3. The telescopic variable angle stair climbing wheelchair as claimed in claim 1, wherein: the motor, the crawler wheel and the crawler wheel push rod are divided into a front group and a rear group to be connected with the front end and the rear end of the main support, the main support is of a front telescopic type and a rear telescopic type, and the two ends of the main support telescopic push rod are respectively connected with the front end and the rear end of the main support.
4. The telescopic variable angle stair climbing wheelchair as claimed in claim 1, wherein: the seat is connected with the main bracket through a rotating fulcrum below the pedal plate, so that the seat can rotate at an angle by taking the rotating fulcrum below the pedal plate as a circle center, and the distance of front and back change of the gravity center of the seat is longer when the seat goes upstairs and downstairs; one end of the first seat balance push rod is connected with the main support through a support, one end of the first seat balance push rod is connected with one end of the second seat balance push rod through a bearing and a shaft, and the other end of the second seat balance push rod is connected with the seat; the seat and the main bracket form a triangular supporting loop all the time when going upstairs and downstairs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110527945.9A CN113133878A (en) | 2021-05-14 | 2021-05-14 | Telescopic variable-angle stair climbing wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110527945.9A CN113133878A (en) | 2021-05-14 | 2021-05-14 | Telescopic variable-angle stair climbing wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113133878A true CN113133878A (en) | 2021-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110527945.9A Pending CN113133878A (en) | 2021-05-14 | 2021-05-14 | Telescopic variable-angle stair climbing wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113133878A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113885537A (en) * | 2021-12-07 | 2022-01-04 | 江苏邦邦智能科技有限公司 | Control method, device, equipment and medium for intelligent mobile equipment |
-
2021
- 2021-05-14 CN CN202110527945.9A patent/CN113133878A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113885537A (en) * | 2021-12-07 | 2022-01-04 | 江苏邦邦智能科技有限公司 | Control method, device, equipment and medium for intelligent mobile equipment |
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