CN2686582Y - Manual multifunctional wheelchair - Google Patents
Manual multifunctional wheelchair Download PDFInfo
- Publication number
- CN2686582Y CN2686582Y CN 200420015968 CN200420015968U CN2686582Y CN 2686582 Y CN2686582 Y CN 2686582Y CN 200420015968 CN200420015968 CN 200420015968 CN 200420015968 U CN200420015968 U CN 200420015968U CN 2686582 Y CN2686582 Y CN 2686582Y
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- Prior art keywords
- wheel
- ferrum
- wheelchair
- lowering
- ball bearing
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- Expired - Fee Related
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Abstract
The utility model provides a manual multifunctional wheelchair, characterized in that a screw elevating gear is connected to a vertical bar on the elbow rest of a wheelchair, a rotary spanner is connected with the upper end of the screw elevating gear, an iron fork wheel driven by a wheel shaft chain is connected with the lower end of the screw elevating gear through a bearing, and front wheels are fastened at the external housing of the screw elevating gear. Besides the general advantages of common wheelchairs, the utility model has the advantages of that the manual multifunctional wheelchair can go up and down along staircases, travel on slope and poor pavements, save time and energy, and is applied only by adding new means to the present wheelchair.
Description
Technical field
This utility model relates to a kind of manpower manual wheelchair, especially a kind of manually manual type multifunctional wheelchair of stair activity step of can manually walking also.
Background technology
At present, the wheelchair on the market is the general wheelchair of riding instead of walk, can only walk on smooth cement pavement, but in recent years, occurred some electronic wheelchairs on the market, replaced manual general wheelchair, stair activity is not arranged, walked that the gradient is big, the function of pavement behavior difference but do not possess.The machine power wheelchair that some power is big, have crawler belt also can stair activity, walk that the gradient is big, the road surface of pavement behavior difference, but production cost is too high, and crawler belt also can damage ground simultaneously, should not use in a lot of occasions.
Summary of the invention
Can not up/down steps in order to overcome existing general wheelchair, the deficiency of uneven ground such as abrupt slope, this utility model provides a kind of manual type multifunctional wheelchair, this manual wheelchair can not only be walked relatively poor road surface, and can up/down steps and abrupt slope.
The technical scheme that its technical problem that solves this utility model adopts comprises backrest, wheel shaft chain, driving device, brake unit, go-cart handgrip, belt and tire, its improvement is to be connected with lowering or hoisting gear by connector on the montant of armrest front end, elevating lever upper end in lowering or hoisting gear is connected with the lifting spanner by the pin axle, the lower end is connected with ferrum fork wheel, and be connected by adjusting device for chains on the tooth of big driving wheel wheel shaft by chain, on the shell of lowering or hoisting gear, front-wheel is arranged by bolting.
Above-mentioned lowering or hoisting gear is to have to be equipped with in the shell of female thread to have externally threaded elevating lever, the upper end of external screw thread elevating lever is connected with rotary spanner by the pin axle, the lower end is provided with single-row thrust ball bearing and supports the rotation of external screw thread elevating lever, single-row thrust ball bearing lower end is welded with the wheelchair pedal, the bottom is connected with deep groove ball bearing and ferrum fork wheel, and ferrum fork wheel wheel shaft passes gear that deep groove ball bearing is provided with to drive ferrum fork wheel; Ferrum at ferrum fork wheel is stuck the cover rubber sleeve; Rear tyre is the airless tire of real core rubber, and is provided with the groove hook on tire.
This utility model rear tyre is an airless tire, and on tire, be provided with groove, can sew up the right angle of stairway step during the stair activity step approx, make trailing wheel non-slip, simultaneously, when groove and stairway step right angle are sewed up, also provide impetus for trailing wheel, two idle rotation type driven gears are arranged on the rear axle, the driven gear function of this driven gear and bicycle rear is identical, and when chain drove forward, the gear driven trailing wheel advanced, chain is static or backward during jack, gear and trailing wheel do not have dynamic action (i.e. idle running), make front-wheel and ferrum fork wheel and the trailing wheel distance that can not rotate because of semidiameter not be inconsistent problem, and front-wheel is in the outside of screw thread lowering or hoisting gear and ferrum fork wheel, the spiral lift device shell has a double-screw bolt, is used for fixing front-wheel.Like this, front-wheel just has crooked fixing point and double-screw bolt fixing point, and front-wheel is stable when making the wheelchair walking.Front-wheel can rotate to an angle and upwards pack up, so as wheelchair to be gone upstairs or during step front-wheel can not block with stair or step.Front-wheel lower part structure is the same with the rotary front-wheel that general wheelchair uses, and can revolve three-sixth turn automatically, the turning problem of wheelchair when never using ferrum fork wheel to separate.Top is the spanner of a bending, and the spanner sweep just in time coincide with screw thread lowering or hoisting gear shell.Screw thread lowering or hoisting gear shell is a female thread, with two and half arc interface locks, is fixed on the four and half arc interfaces on the swan-neck of handrail, and the screw thread lowering or hoisting gear can be turned an angle, and solves the turning problem when using ferrum fork wheel.The screw thread lowering or hoisting gear also comprises the external screw thread axle of band ferrum fork wheel, and there is a single-row thrust ball bearing lower end of axle, supports the rotation of external screw thread axle.The lower end of single-row thrust ball bearing is connecting the pedal of wheelchair, is one and the vertical deep groove ball bearing of single-row thrust ball bearing bottom, is used to connect ferrum fork wheel.The wheel shaft of ferrum fork wheel passes deep groove ball bearing, and its other end is a driven gear, is used for driving ferrum fork wheel.Each ferrum fork of ferrum fork wheel all is with the very big rubber sleeve of coefficient of friction, to adapt to the pavement behavior of smooth earth.The upper end of external screw thread axle is a rotary spanner, is used to rotate the external screw thread axle, rotate this spanner after, can make the external screw thread axle drive ferrum fork wheel and rise or descend.Power set are the laborsaving power set that petty action wheel drives big driving wheel, little driving wheel is installed on the handrail of wheelchair, big driving wheel is under it, two driving wheels connect with belt, between big driving wheel and the big driving wheel is a line shaft, two pairs of power gear are arranged on the line shaft, be respectively applied for and drive trailing wheel and ferrum fork wheel, connect with mild steel link chain.The chain length regulating device of two mountain bike speed variator types is installed in wheelchair seat bottom, be used to regulate the power gear that is connected on the ferrum fork wheel and and its corresponding a pair of power gear on line shaft between the chain length of chain, the flexible problem of caused chain length when regulating ferrum fork wheel adjustable height to solve.
Go upstairs or during step, the rotary spanner on the rotation external screw thread axle descends until landing ferrum fork wheel, replaces front-wheel to support wheelchair and people's weight.Like this, front-wheel rises relatively, becomes unsettled.At this moment, pull preceding wheel spanner, the front-wheel rotation is risen, rotate rotary spanner again, make ferrum fork wheel be raised up to certain altitude, poor with trailing wheel formation certain height.This adjustable difference in height to be to be adjusted to the degree that can sew up stair or shoulder height, rotates little driving wheel after regulating trailing wheel, the petty action wheel drives trailing wheel and ferrum fork wheel, just can go upstairs or step with certain speed.Run into when turning, rotate the screw thread lowering or hoisting gear, ferrum fork wheel will rotate a certain angle, and turns.When replacing front-wheel,, control the rotating speed of little driving wheel and turn to, just can control the speed of travel and the direction of wheelchair, even brake because driven gear on the ferrum fork wheel and ferrum fork wheel are fixed as one with ferrum fork wheel.Downstairs during the ladder type step, rotation external screw thread axle descends ferrum fork wheel, and it is big to identical (can pack up front-wheel) with the difference in height of ladder type step downstairs to drop to the difference in height of ferrum fork wheel and trailing wheel, and other embodiment and the ladder type step of going upstairs are basic identical.
In the smooth-riding surface or roughness pavement in easy flights when walking, rotary spanner on the rotatable external screw thread axle, mention ferrum fork wheel, with front-wheel and trailing wheel walking, for driving wheelchair better, can not use laborsaving power set, and rotate driving torus (being located at the driving device on the trailing wheel on the general wheelchair) on the trailing wheel frame with hands.Because the driven gear on the hind axle has lost motion functionality, so torus drives and power drive is independent of each other.When big formula pavement behavior of the gradient was relatively poor, available laborsaving power set drove, and solve a series of problems that user brings because of muscle power.
The level land that this utility model has kept general wheelchair drives advantage, and its improved effect is this wheelchair energy stair activity, step, can walk the road surface of big, the domatic situation difference of the gradient; Owing to used power set, the muscle power that can save user effectively.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Fig. 2 is a screw thread lifting rod structure sketch map of the present utility model
Fig. 3 is a screw thread elevating lever of the present utility model left side TV structure sketch map
Fig. 4 is a ferrum furcate wheel structure sketch map of the present utility model
Fig. 5 is the left TV structure sketch map of ferrum fork wheel of the present utility model
Fig. 6 is a lowering or hoisting gear shell mechanism sketch map of the present utility model
Fig. 7 is the structural representation of armrest front end montant of the present utility model
Fig. 8 is a hind axle structural representation of the present utility model
Fig. 9 is a fore wheel structure sketch map of the present utility model
Among the figure: armrest 1 montant 2 lowering or hoisting gears 3 rotary handles 4 ferrum fork wheel 5 chains 6 adjusting device for chains 7 big driving wheel 8 shells 9 bolts 10 front-wheels 11 screw thread elevating levers 12 single-row thrust ball bearing 13 wheelchair pedals 14 deep groove ball bearings 15 gears 16 tires 17 grooves 18 connectors 19
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples, and present embodiment is must illustrate this utility model, this utility model is not imposed any restrictions.
This utility model is on the basis of existing wheelchair, front end montant (2) at two handrails of seat (1) upward is fixed with two lowering or hoisting gears (3) by symmetric four connectors (19), the lower end is connected with two symmetric ferrum fork wheels (5), and be connected on big driving wheel (8) the axle tooth by adjusting device for chains (7) by chain (6), go up at the shell (9) of two lowering or hoisting gears (3) and be connected with two front-wheels (11) by bolt (10).
Above-mentioned lowering or hoisting gear (3) is in the shell (9) that has female thread screw thread elevating lever (12) to be housed, the upper end of screw thread elevating lever (12) is fastened axle by pin and is connected with rotary spanner (4), the lower end is provided with single-row thrust ball bearing (13) and supports externally threaded rotation, the lower end of single-row thrust ball bearing (13) is connected with wheelchair pedal (14), the bottom is connected with deep groove ball bearing (15) and ferrum fork wheel (5), the wheel shaft of ferrum fork wheel (5) passes the gear (16) that deep groove ball bearing (15) is provided with, to drive ferrum fork wheel (5), ferrum at ferrum fork wheel (5) is stuck the cover rubber sleeve, rear tyre (17) is a real core rubber airless tire (17), and is provided with groove hook (18) on tire (17).
Claims (3)
1. manual type multifunctional wheelchair, comprise backrest, wheel shaft chain, driving device, brake unit, go-cart handgrip, belt and tire, it is characterized in that upward being connected with lowering or hoisting gear (3) by connector (19) at the montant (2) of armrest (1) front end, and be connected with ferrum fork wheel (5) in the lower end of lowering or hoisting gear (3), be connected by chain (6) and adjusting device for chains (7) on the tooth of big driving wheel (8); Shell (9) in lowering or hoisting gear (3) upward is fixed with front-wheel (11) by bolt (10).
2. manual type multifunctional wheelchair according to claim 1, it is characterized in that lowering or hoisting gear (3) is to be equipped with in the shell (9) that has female thread to have externally threaded elevating lever (12), the upper end of external screw thread elevating lever (12) is connected with rotary spanner (4) by the pin axle, the lower end is provided with the rotation that single-row thrust ball bearing (13) is supported elevating lever (12), and the bottom is connected with deep groove ball bearing (15) and ferrum fork wheel (5); The wheel shaft of ferrum fork wheel (5) passes the gear (16) that deep groove ball bearing (15) is provided with, to drive ferrum fork wheel (5); Ferrum at ferrum fork wheel (5) is stuck the cover rubber sleeve; The bottom of single-row thrust ball bearing (13) is welded with wheelchair pedal (14).
3. manual type multifunctional wheelchair according to claim 1 is characterized in that rear tyre (17) is the airless tire of real core rubber, and be provided with groove hook (18) on tire (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015968 CN2686582Y (en) | 2004-03-26 | 2004-03-26 | Manual multifunctional wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420015968 CN2686582Y (en) | 2004-03-26 | 2004-03-26 | Manual multifunctional wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2686582Y true CN2686582Y (en) | 2005-03-23 |
Family
ID=34668840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420015968 Expired - Fee Related CN2686582Y (en) | 2004-03-26 | 2004-03-26 | Manual multifunctional wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2686582Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381121A (en) * | 2013-04-29 | 2013-11-06 | 吴家全 | Multifunctional wheelchair and manufacturing method thereof |
| CN103784270A (en) * | 2014-02-25 | 2014-05-14 | 王战友 | Stair climbing wheelchair and control method thereof |
| CN106038124A (en) * | 2016-07-12 | 2016-10-26 | 天津市鑫成新科贸有限公司 | Lifting pedal plates of wheelchair |
| CN106038123A (en) * | 2016-07-12 | 2016-10-26 | 天津市鑫成新科贸有限公司 | Wheelchair pedal capable of lifting by hand cranking |
| CN109481162A (en) * | 2018-10-17 | 2019-03-19 | 陕西科技大学 | A kind of manually adjustable wheelchair |
-
2004
- 2004-03-26 CN CN 200420015968 patent/CN2686582Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381121A (en) * | 2013-04-29 | 2013-11-06 | 吴家全 | Multifunctional wheelchair and manufacturing method thereof |
| CN103784270A (en) * | 2014-02-25 | 2014-05-14 | 王战友 | Stair climbing wheelchair and control method thereof |
| CN103784270B (en) * | 2014-02-25 | 2016-06-01 | 王战友 | A kind of stair-climbing wheel chair and control method thereof |
| CN106038124A (en) * | 2016-07-12 | 2016-10-26 | 天津市鑫成新科贸有限公司 | Lifting pedal plates of wheelchair |
| CN106038123A (en) * | 2016-07-12 | 2016-10-26 | 天津市鑫成新科贸有限公司 | Wheelchair pedal capable of lifting by hand cranking |
| CN109481162A (en) * | 2018-10-17 | 2019-03-19 | 陕西科技大学 | A kind of manually adjustable wheelchair |
| CN109481162B (en) * | 2018-10-17 | 2020-06-02 | 陕西科技大学 | Manually adjustable wheelchair |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |