CN202933122U - Stable type staircase and electrically propelled wheelchair capable of moving on flat ground - Google Patents
Stable type staircase and electrically propelled wheelchair capable of moving on flat ground Download PDFInfo
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- CN202933122U CN202933122U CN 201220645222 CN201220645222U CN202933122U CN 202933122 U CN202933122 U CN 202933122U CN 201220645222 CN201220645222 CN 201220645222 CN 201220645222 U CN201220645222 U CN 201220645222U CN 202933122 U CN202933122 U CN 202933122U
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Abstract
The utility model discloses a stable type staircase and an electrically propelled wheelchair capable of moving on flat ground. The stable type staircase and the electrically propelled wheelchair capable of moving on flat ground comprises a seat, a controller, a frame, front wheels, an Archimedes-like spiral impeller switching mechanism, transformable back wheels, a motor and a front wheel auxiliary small track, wherein the Archimedes-like spiral impeller switching mechanism is composed of a planet wheel mechanism, a clutch and a stretchable supporting rod, the planet wheel mechanism is composed of four planetary gears, a sun wheel and a planet carrier and is connected with the transformable back wheels, the transformable back wheels comprise four sections of arc flanges which can respectively be unscrewed towards the outer sides of the flanges and an arc-shaped rod hub, the four sections of the arc flanges form an integrated circular back wheel flange, each section of the arc flange and the arc-shaped rod hub form a slice of wheel blade, the number of the wheel blades are four and the structures and patterns of the wheel blades are the same, and each section of the arc-shaped rod hub is connected with corresponding a planet wheel and is connected with the planet carrier through hinges. The stable type staircase and the electrically propelled wheelchair capable of moving on flat ground has the advantages of being simple in structure, high in energy efficiency, stable in movement, comfortable to ride and sit, and is capable of being applied in daily family lives of the disabled and the old.
Description
Technical field:
This utility model relates to a kind of leveling style stair and level walking electric wheelchair, belongs to the mechanical field of helping the disabled, help the elderly.
Background technology:
On market, mainly contain two kinds of stair climbing type wheelchairs now, be respectively crawler type and planet gear type wheelchair.Steadily, but complex structure, volume are large, heavier, and stair are had to damage for crawler-type wheel chair motion, and efficiency is lower, the difficulty of turning.Planet gear type wheelchair small volume, but bumpy motion, center of gravity fluctuation is large, take uncomfortable, " iBOT " U.S. be the highest product of current star-like formula wheel wheelchair performance index, but cost is very high.
Summary of the invention:
For solve crawler-type wheel chair complex structure in the prior art scheme, volume large, to stair have the problems such as damage, efficiency be low and planet gear type wheel chair sport not steadily, the center of gravity fluctuation is large, take uncomfortable problem, the technical scheme that this utility model adopts is: a kind of leveling style stair and level walking electric wheelchair are comprised of the auxiliary little crawler belt of seat, controller, vehicle frame, front-wheel, class spiral of Archimedes impeller shifter, changeable type trailing wheel, motor and front-wheel; Class spiral of Archimedes impeller transformational structure is comprised of planetary wheeling mechanism, clutch and retractable support lever; Planetary wheeling mechanism is comprised of four planetary gears, sun gear and planet carriers, with the changeable type trailing wheel, links; The changeable type trailing wheel is comprised of four sections circular arc wheel rim and the bow wheel hubs that can outward winding to the wheel rim outside respectively, the four arcs wheel rim forms a complete circular trailing wheel wheel rim, every section circular arc wheel rim and bow wheel hub form a slice wheel blade, have four identical wheel blades of version; Every section bow wheel hub and corresponding line star-wheel fixedly link, and link with hinge with planet carrier, can rotate by the hinge fulcrum on planet carrier, and its rotational angle is regulated by controller, and changeable type trailing wheel wheel rim skin is hollow rubber.
Movement characteristic when this utility model utilizes Archimedes spiral Lun Zaipa building, by class spiral of Archimedes impeller shifter, the changeable type trailing wheel is transformed to four impellers from circular wheel, approach Archimedes spiral with the wheel rim circular arc, both basic guarantee stationarity during wheelchair Zai Pa building, guaranteed again wheelchair stationarity when level walking, compared with prior art, simple in structure, efficiency is high, does not damage stair, motion is steady, ride comfort, has larger advance.The daily family life that can be widely used in disabled and old man, to improve disabled and old man's quality of life.
The accompanying drawing explanation
Fig. 1: leveling style stair and level walking electric wheelchair structure schematic diagram
Fig. 2: class spiral of Archimedes impeller and shifter schematic diagram
Fig. 3: class spiral of Archimedes impeller shifter left view
Fig. 4: changeable type rear-wheel structure schematic diagram
The specific embodiment
Below in conjunction with drawings and Examples, this utility model is further illustrated.
Movement characteristic when this utility model utilizes Archimedes spiral Lun Zaipa building, be Archimedes spiral wheel wheel with constant angular velocity when the rotation of wheel shaft axle center realizing the horizontal direction uniform motion with pure rolling, the wheel hub axle center can be according to along wheel, radially waiting the speed motion mode to carry out the uniform motion of vertical direction, by class spiral of Archimedes impeller shifter, the changeable type trailing wheel is transformed to four impellers from circular wheel, four sections wheel rim circular arcs of changeable type wheel geometric locus and Archimedes spiral with respect to the wheel hub central point after being launched into four impellers is very similar, approach the Archimedes spiral error with the wheel rim circular arc very little, be referred to as the class Archimedes spiral, so both basic guarantee stationarity during wheelchair Zai Pa building, guaranteed again wheelchair stationarity when level walking, there is the function that steadily realizes level road walking and two kinds of motions of speeling stairway.
A kind of leveling style stair and level walking electric wheelchair, be comprised of the auxiliary little crawler belt of seat (7), controller (8), vehicle frame (6), front-wheel (5), class spiral of Archimedes impeller shifter (2), changeable type trailing wheel (1), motor (9) and front-wheel; Class spiral of Archimedes impeller shifter (2) is comprised of planetary wheeling mechanism (12,13,14,15), clutch (16) and retractable support lever (3); Planetary wheeling mechanism is comprised of four planetary gears (12,13,14,15), sun gear (11) and planet carrier (10), with changeable type trailing wheel (1), links; The changeable type trailing wheel is comprised of four sections circular arc wheel rim (17,18,19,20) and the bow wheel hubs (21,22,23,24) that can outward winding to the wheel rim outside respectively, the four arcs wheel rim forms a complete circular trailing wheel wheel rim, every section circular arc wheel rim and bow wheel hub form a slice wheel blade, have four identical wheel blades of version; Every section bow wheel hub and corresponding line star-wheel fixedly link, and link with hinge with planet carrier, can rotate by the hinge fulcrum on planet carrier, and its rotational angle is regulated by controller (16), and changeable type trailing wheel wheel rim skin is hollow rubber.
Under the stair climbing pattern, in changeable type trailing wheel (1) walking during to the position apart from stair step step certain distance, retractable support lever (3) stretches out downwards, by wheelchair jack-up, make wheelchair changeable type trailing wheel (1) built on stilts, class spiral of Archimedes impeller shifter (2) is controlled the planet circular system motion by clutch (16), drive the bow wheel hub of wheel blade to rotate to the wheel rim lateral direction around the hinge fulcrum on planet carrier, drive changeable type trailing wheel (1) is outwards outwarded winding and is converted four impellers to, the angle of outwards outwarding winding by controlling the wheel rim circular arc, convert out different class spiral of Archimedes, can adjust the curvature of class spiral of Archimedes to adapt to the variation of different stair sizes in certain limit, realize the steady walking of wheelchair on stair, after changeable type trailing wheel (1) is changed impeller by the circle wheel, retractable support lever (3) is upwards retracted, the auxiliary little crawler belt (4) of front-wheel stretches out with stair and contacts, as an auxiliary pivot guide wheelchair upstairs, every wheel blade has bow wheel hub and wheel rim to connect to form curved line trangle, the rigidity while strengthening wheel blade Zai Pa building and enhancing lifting capacity.When transferring level walking to, retractable support lever (3) stretches out downwards, by wheelchair jack-up, make wheelchair changeable type trailing wheel (1) built on stilts, controlling class spiral of Archimedes impeller transformational structure (2) by controller (8) makes the bow wheel hub rotate to side direction in wheel rim, change impeller into the circle wheel, realize steadily walking on level land; After changeable type trailing wheel (1) is taken turns by impeller conversion circle, retractable support lever (3) is upwards retracted, and the auxiliary little crawler belt (4) of front-wheel is retracted.The wheel rim skin of changeable type trailing wheel (1) is hollow rubber, can reduce when wheelchair is walked by the caused vibration of Uneven road.
Claims (1)
1. leveling style stair and level walking electric wheelchair, is characterized in that: the auxiliary little crawler belt of seat, controller, vehicle frame, front-wheel, class spiral of Archimedes impeller shifter, changeable type trailing wheel, motor and front-wheel, consist of; Class spiral of Archimedes impeller transformational structure is comprised of planetary wheeling mechanism, clutch and retractable support lever; Planetary wheeling mechanism is comprised of four planetary gears, sun gear and planet carriers, with the changeable type trailing wheel, links; The changeable type trailing wheel is comprised of four sections circular arc wheel rim and the bow wheel hubs that can outward winding to the wheel rim outside respectively, the four arcs wheel rim forms a complete circular trailing wheel wheel rim, every section circular arc wheel rim and bow wheel hub form a slice wheel blade, have four identical wheel blades of version; Every section bow wheel hub and corresponding line star-wheel fixedly link, and link with hinge with planet carrier, can rotate by the hinge fulcrum on planet carrier, and its rotational angle is regulated by controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220645222 CN202933122U (en) | 2012-11-29 | 2012-11-29 | Stable type staircase and electrically propelled wheelchair capable of moving on flat ground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220645222 CN202933122U (en) | 2012-11-29 | 2012-11-29 | Stable type staircase and electrically propelled wheelchair capable of moving on flat ground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202933122U true CN202933122U (en) | 2013-05-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220645222 Expired - Fee Related CN202933122U (en) | 2012-11-29 | 2012-11-29 | Stable type staircase and electrically propelled wheelchair capable of moving on flat ground |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202933122U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103054677A (en) * | 2012-11-29 | 2013-04-24 | 广西大学 | Electrically powered wheelchair capable of stably walking on staircase and flat ground |
| CN106137585A (en) * | 2016-08-12 | 2016-11-23 | 高宏 | The electric wheelchair that a kind of energy up/down steps stair travel pacifically |
-
2012
- 2012-11-29 CN CN 201220645222 patent/CN202933122U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103054677A (en) * | 2012-11-29 | 2013-04-24 | 广西大学 | Electrically powered wheelchair capable of stably walking on staircase and flat ground |
| CN106137585A (en) * | 2016-08-12 | 2016-11-23 | 高宏 | The electric wheelchair that a kind of energy up/down steps stair travel pacifically |
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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: 20130515 Termination date: 20131129 |