CN202554297U - Wheelchair - Google Patents
Wheelchair Download PDFInfo
- Publication number
- CN202554297U CN202554297U CN2012200802776U CN201220080277U CN202554297U CN 202554297 U CN202554297 U CN 202554297U CN 2012200802776 U CN2012200802776 U CN 2012200802776U CN 201220080277 U CN201220080277 U CN 201220080277U CN 202554297 U CN202554297 U CN 202554297U
- Authority
- CN
- China
- Prior art keywords
- threaded rod
- wheelchair
- established
- sliding
- armrest
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000000178 monomer Substances 0.000 claims description 7
- 230000009194 climbing Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
Disclosed is a wheelchair capable of climbing stairs. Parallel arched frames on two sides of the bottom of the wheelchair are connected by crossbeams, a threaded rod is disposed at the bottom of the wheelchair, convex shafts are disposed at two ends of the threaded rod and connected with the frames, a bevel gear is disposed at the rear end of the threaded rod, is meshed with another bevel gear in the perpendicular direction and is connected with a perpendicular motor shaft, a motor casing is fixed onto the arched frames, triangular support arms are disposed on the frames, shaft holes on the tops of the support arms are connected with sliding sleeve shafts of armrests of a seat, a threaded ring is disposed at a sliding sleeve end of one side of each armrest of the seat and fastened with the armrest of the seat, threads arranged on each armrest are meshed with threads of the corresponding threaded ring, sliding handles are positioned at the end of the left armrest and the end of the right armrest and connected with sliding ends of potentiometers in circuits, two electrodes, which include a fixed-end electrode and a sliding-end electrode, of the motor are connected onto the potentiometers, the potentiometers on the left armrest and the right armrest are connected to two electrodes of a storage battery in parallel, and the storage battery is fixed onto a backrest of the seat. The wheelchair can be a direct connection type wheelchair, a pulley type wheelchair and a caterpillar track type wheelchair according to different ground contact modes.
Description
Affiliated technical field:
This utility model relates to a kind of wheelchair that can stair climbing.
Background technology:
The wheelchair that uses at present is normally wheeled, can't stair climbing, and this is for the individuals with disabilities or the very inconvenience of limited person of taking action.
Summary of the invention:
In order to overcome the deficiency that existing wheelchair can't stair climbing, this utility model provides a kind of wheelchair, and this wheelchair not only can solve the stair climbing problem, and simple in structure, and is safe and reliable.
The technical scheme that this utility model adopted is: connect with crossbeam between the upswept frame that the wheelchair two bottom sides is parallel to each other; Threaded rod is established in the bottom, and the threaded rod two ends are established protruding axle and are connected with upswept frame, and another bevel gear engagement of bevel gear and vertical direction is established in its rear end; This gear is connected with the vertical direction motor shaft; Motor case is fixed on the upswept frame, establishes the triangular support arm on the vehicle frame, and the support arm top is established shaft hole and is connected with the rotating shaft of armrest sliding sleeve; Sliding sleeve is socketed on the armrest; One side handrail sliding sleeve end is established threaded collar and is interlocked with it, establishes screw thread and threaded collar threaded engagement on the handrail, and handrail slides in sliding sleeve to regulate the balance of human body when rotating threaded collar.Two handrail ends were connected with the sliding end of circuit potentiometer about sliding handle was arranged in; Motor the two poles of the earth are connected on the potentiometer; A stiff end very wherein, another is sliding end very, thus sliding to bring in through adjustment changes the external voltage that the potentiometer output voltage changes left and right sides motor and realizes turning to and acceleration and deceleration of wheelchair to change its rotating speed; Potentiometer on the handrail of the left and right sides is parallel to accumulator the two poles of the earth, and accumulator is fixed on the backrest.Be divided into three kinds of schemes according to different with the ground way of contact: first kind of direct-type, promptly do not establish any device screw thread on the threaded rod and directly contact to earth.Second kind of pulley-type promptly established double thread on threaded rod, establish protruding pulley between double thread, and pulley spindle is parallel with threaded rod, and two ends are located on the screw thread edge.For pulley-type and direct-type; The both sides motor drives the threaded rod reverse rotation of different rotation directions through bevel gear; Both sides threaded rod transverse movement trend offsets, and the pulley on the pulley-type screw thread edge has been eliminated the horizontal sliding friction to ground, and screw thread is meshed with the stair edge when going upstairs; It is up to produce axial thrust promotion wheelchair during threads turn, and pulley the during level land on the screw thread edge or screw thread itself promotes ground makes wheelchair along the threaded rod axially-movable.Because there is horizontal sliding friction in direct-type to ground, therefore be more suitable in the field and the snowfield road conditions.The third crawler type is promptly established crawler belt in the closed-loop path outer rim of threaded rod and upswept frame formation, and screw thread and threaded rod threaded engagement are established in crawler belt monomer inboard, and lateral projection is established in the outside, connects through pin between monomer.Motor passes through bevel gear and drives the threaded rod rotation, and the crawler belt of threaded rod drive and its threaded engagement owing to the protruding adherence properties of crawler belt, adds the rigid support of threaded rod, effectively speeling stairway along the threaded rod axially-movable.The seat of center of gravity under the rotating shaft of armrest and support arm will keep original attitude of human body no matter up parallel or descending all the time automatically.
The beneficial effect of this utility model is:
Effective speeling stairway and cross certain obstacle, it is stable that human body attitude keeps, be fit to comprise take action limited person's all kinds of crowds at urban road, field and snowfield use, simple in structure, safe and reliable.
Description of drawings:
Below in conjunction with accompanying drawing and embodiment this utility model is described further.
Fig. 1 is the front view of first embodiment of this utility model.
Fig. 2 is the vertical view of first embodiment of this utility model.
Fig. 3 is the part section enlarged drawing of Fig. 1.
Fig. 4 is the circuit theory diagrams of first embodiment of this utility model.
Fig. 5 is the front view of second embodiment of this utility model.
Fig. 6 is the local enlarged diagram of second embodiment of this utility model.
Fig. 7 is the A-A cutaway view of Fig. 6.
Fig. 8 is front view and the partial sectional view of the 3rd embodiment of this utility model.
Fig. 9 is the local enlarged diagram of the 3rd embodiment of this utility model.
Figure 10 is the B-B cutaway view of Fig. 8.
1. threaded rods, 2. threaded rod screw threads, 3. protruding axle 4. threaded rod bevel gears 5. upswept frames 6. motors 7. motor shaft bevel gears 8. crossbeams 9. triangular support arms 10. sliding sleeve rotating shafts 11. sliding sleeves 12. armrests 13. threaded collar 14. sliding handles 15. threaded collar screw threads 16. potentiometers 17. stiff ends 18. sliding ends 19. double threads 20. pulley spindles 21. pulleys 22. crawler belt monomers 23. lateral projection 24. crawler belt screw threads 25. track pins among Fig. 1 to Figure 10
The specific embodiment:
In Fig. 1 to Figure 10, connect with crossbeam (8) between the upswept frame that the wheelchair two bottom sides is parallel to each other (5), threaded rod (1) is established in the bottom; Threaded rod (1) two ends are established protruding axle (3) and are connected with upswept frame (5); Another bevel gear (7) engagement of bevel gear (4) and vertical direction is established in its rear end, and this gear is connected with the vertical direction motor shaft, and motor case is fixed on the upswept frame (5); Establish triangular support arm (9) on the vehicle frame; The support arm top is established shaft hole and is connected with armrest sliding sleeve rotating shaft (10), and sliding sleeve is socketed on the armrest (12), and a side handrail sliding sleeve end is established threaded collar (13) and interlocked with it; Establish screw thread on the handrail (12) and be meshed with threaded collar screw thread (15), handrail slides in sliding sleeve (11) to regulate the balance of human body when rotating threaded collar (13).Two handrails (12) end about sliding handle (14) is positioned at; Sliding handle (14) is connected with the sliding end (18) of potentiometer (16) in the circuit; Motor the two poles of the earth are connected on the potentiometer (16); A stiff end (17) very wherein, another is sliding end (18) very, through adjustment sliding end (18) change potentiometer (16) thus output voltage changes the external voltage of left and right sides motor (6) realizes turning to and acceleration and deceleration of wheelchair to change its rotating speed; Potentiometer (16) on the left and right sides handrail (12) is parallel to accumulator the two poles of the earth, and accumulator is fixed on the backrest.Be divided into three kinds of schemes according to different with the ground way of contact: first kind of direct-type, promptly do not establish any device screw thread (2) on the threaded rod (1) and directly contact to earth.Second kind of pulley-type promptly established double thread (19) on threaded rod (1), establish protruding pulley (21) between double thread (19), and pulley spindle (20) is parallel with threaded rod (1), and two ends are located on screw thread (19) edge.For pulley-type and direct-type; Both sides motor (6) drives threaded rod (1) reverse rotation of different rotation directions through bevel gear (7) and (4); Both sides threaded rod (1) transverse movement trend offsets; Pulley (21) on pulley-type screw thread (19) edge has been eliminated the horizontal sliding friction to ground; Screw thread when going upstairs (2) or (19) are meshed with the stair edge, and it is up to produce axial thrust promotion wheelchair during threads turn, and pulley (21) on screw thread during the level land (19) edge or screw thread (2) itself promotes ground makes wheelchair along threaded rod (1) axially-movable.Because there is horizontal sliding friction in direct-type to ground, therefore be more suitable in the field and the snowfield road conditions.The third crawler type is promptly established crawler belt in the closed-loop path outer rim of threaded rod (1) and upswept frame (5) formation, and crawler belt monomer (22) inboard is established screw thread (24) and is meshed with threaded rod screw thread (2), and lateral projection (23) is established in the outside, connects through pin (25) between monomer (22).Motor (6) drives threaded rod (1) rotation through bevel gear (7) and (4); The crawler belt (22) of threaded rod (1) drive and its threaded engagement is along threaded rod (1) axially-movable; Owing to the adherence properties of crawler belt protruding (23), add the rigid support of threaded rod (1), effectively speeling stairway.The seat of center of gravity under the rotating shaft of armrest (12) and support arm will keep original attitude of human body no matter up parallel or descending all the time automatically.
Claims (3)
1. wheelchair, it is by threaded rod, bevel gear, upswept frame; Motor, triangular support arm, support arm, sliding sleeve; Threaded collar, handrail, seat, sliding handle; Potentiometer, accumulator constitutes, and it is characterized in that: connect with crossbeam between the upswept frame that the wheelchair two bottom sides is parallel to each other, threaded rod is established in the bottom; The threaded rod two ends are established protruding axle and are connected with upswept frame, and another bevel gear engagement of bevel gear and vertical direction is established in its rear end, and this gear is connected with the vertical direction motor shaft, and motor case is fixed on the upswept frame; Establish the triangular support arm on the vehicle frame, the support arm top is established shaft hole and is connected with the rotating shaft of armrest sliding sleeve, and sliding sleeve is socketed on the armrest, and a side handrail sliding sleeve end is established threaded collar and interlocked with it; Establish screw thread and threaded collar threaded engagement on the handrail, two handrail ends were connected with the sliding end of circuit potentiometer about sliding handle was arranged in, and motor the two poles of the earth are connected on the potentiometer, wherein a stiff end very; Another is sliding end very, and the potentiometer on the handrail of the left and right sides is parallel to accumulator the two poles of the earth, and accumulator is fixed on the backrest.
2. wheelchair according to claim 1 is characterized in that: establish double thread on the threaded rod, establish protruding pulley between double thread, pulley spindle is parallel with threaded rod, and two ends are located on the screw thread edge.
3. wheelchair according to claim 1 is characterized in that: the closed-loop path outer rim that constitutes at threaded rod and upswept frame establish crawler belt around, screw thread and threaded rod threaded engagement are established in crawler belt monomer inboard, lateral projection is established in the outside, between monomer through the pin connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200802776U CN202554297U (en) | 2012-03-06 | 2012-03-06 | Wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200802776U CN202554297U (en) | 2012-03-06 | 2012-03-06 | Wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202554297U true CN202554297U (en) | 2012-11-28 |
Family
ID=47204007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200802776U Expired - Fee Related CN202554297U (en) | 2012-03-06 | 2012-03-06 | Wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202554297U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174421A (en) * | 2017-04-27 | 2017-09-19 | 陈建平 | A kind of electric bicycle that can be gone up downstairs |
| RU2686264C1 (en) * | 2018-08-20 | 2019-04-24 | Николай Петрович Дядченко | Screw propulsion unit |
-
2012
- 2012-03-06 CN CN2012200802776U patent/CN202554297U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107174421A (en) * | 2017-04-27 | 2017-09-19 | 陈建平 | A kind of electric bicycle that can be gone up downstairs |
| CN107174421B (en) * | 2017-04-27 | 2018-08-10 | 陈建平 | A kind of electric bicycle that can be gone up downstairs |
| RU2686264C1 (en) * | 2018-08-20 | 2019-04-24 | Николай Петрович Дядченко | Screw propulsion unit |
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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: 20121128 Termination date: 20130306 |