CN204744693U - Singlehanded preceding control device of hand wheelchair - Google Patents
Singlehanded preceding control device of hand wheelchair Download PDFInfo
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- CN204744693U CN204744693U CN201520437368.4U CN201520437368U CN204744693U CN 204744693 U CN204744693 U CN 204744693U CN 201520437368 U CN201520437368 U CN 201520437368U CN 204744693 U CN204744693 U CN 204744693U
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- steering spindle
- hand
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Abstract
The utility model discloses a singlehanded preceding control device of hand wheelchair, it includes crank and front wheel, characteristics are: it still includes steering spindle, threaded bush, fore carriage, U -shaped support frame, studdle, driving pulley, from the driven pulleys and drive belt, and the crank is a U -shaped crank, the vertical setting of steering spindle, and fore carriage, upper end and threaded bush one end thread connection are fixed to its lower extreme, from the driven pulleys rotates and supports on the fore carriage, rotates with the front wheel is coaxial, synchronous, studdle fixes the upper end at U -shaped support frame bottom, lower extreme and threaded bush other end thread connection, the top of U -shaped support frame is equipped with the supporting seat, is equipped with the transmission shaft in the supporting seat, U -shaped crank, driving pulley respectively non - rotation assembly the U -shaped support frame is inboard, the correspondence of the transmission shaft in the outside is served lieing in, U -shaped crank and coaxial, the synchronous rotation of driving pulley. The utility model discloses rational in infrastructure, low in manufacturing cost controls portably.
Description
Technical field
This utility model relates to the parts being suitable for the chair of people with disability specially, actuation means before especially a kind of one hand of hand wheelchair.
Background technology
We know, wheelchair is the important tool of rehabilitation, and it is not only the walking-replacing tool of limbs the disabled, the more important thing is and make them carry out physical exercise by means of wheelchair and participate in social activity.And hand wheelchair is on common wheelchair basis, increase hand actuation means.The common hand wheelchair of tradition is generally applicable to the sound user of those both hands, for the patient of some hemiplegic patients or upper limb disability, then cannot by singlehanded manipulation wheelchair, numerous technical staff research and develop operating-controlling mechanism before the one hand of hand wheelchair for this reason, such as, one " one-handed performance people with disability tricycle " is disclosed in CN103029782A Chinese invention patent application description disclosed in 10 days April in 2013, it comprises vehicle frame, brake block, driving mechanism and two driven trailing wheels, vehicle frame comprises the front fork being connected with wheel, back vent and seat, front fork and vehicle frame are rotationally connected, feature is: driving mechanism is by front fork, turning-bar, rocking bar, crank disc, the toggle that connecting rod is formed, wherein, turning-bar is fixedly connected with front fork, the upper end of rocking bar be provided with handle and lower end and turning-bar vertical hinged, crank disc is coaxially connected with front-wheel, the two ends of connecting rod are hinged with the middle part of crank disc perimembranous and rocking bar respectively, front wheel diameter is greater than rear wheel diameter, front fork, brake block is equipped with respectively in back vent both sides.Although this patent application achieves one-handed performance tricycle, its driving mechanism is the toggle be made up of front fork, turning-bar, rocking bar, crank disc, connecting rod, there is complex structure, deficiency that manufacturing cost is high.
Summary of the invention
There is complex structure, deficiency that manufacturing cost is high to overcome in prior art the hand front operating-controlling mechanism disclosing hand wheelchair, this utility model provide that a kind of structure is simple, reasonable in design, actuation means before the one hand of the hand wheelchair that manipulates easy, low cost of manufacture.
This utility model solves the technical scheme that its technical problem adopts: actuation means before a kind of one hand of hand wheelchair, it comprises a crank, one front-wheel, it is characterized in that: it also comprises a steering spindle, one threaded sleeve, one front wheel carrier, one U-shaped bracing frame, one studdle, two driving pulleys, at least one driven pulley and around being assemblied in driving pulley, two driving-belts on driven pulley, wherein, described crank is a U-shaped crank, described steering spindle is vertically arranged, lower end and the described front wheel carrier of this steering spindle are fixedly connected, the upper end of steering spindle connects with the threaded one end of described threaded sleeve, on front wheel carrier, fork-join has front axle, and described driven pulley is rotatably supported on this front axle, and described front-wheel is nonrotationally assemblied on driven pulley, synchronous axial system coaxial with driven pulley, the upper end of described studdle is fixedly connected in the bottom of U-shaped bracing frame, the lower end of studdle and the other end thread connection of described threaded sleeve, the top of described U-shaped bracing frame is arranged with supporting seat respectively, two power transmission shafts respectively laterally, be rotatably supported in supporting seat, the two ends of described U-shaped crank are nonrotationally assemblied in a corresponding end of two power transmission shafts be positioned at inside U-shaped bracing frame respectively, described driving pulley is nonrotationally assemblied in another corresponding end of two power transmission shafts be positioned at outside U-shaped bracing frame respectively, synchronous axial system coaxial with U-shaped crank.
Described U-shaped crank is set with a crank sleeve pipe.
Described steering spindle, studdle are respectively fitted with lock nut, the position of lock nut difference locking screw thread sleeve pipe and steering spindle, threaded sleeve and studdle.
Steering spindle of the present utility model can be rotated with vehicle frame and be assembled, and its lower end and front wheel carrier are fixedly connected, and upper end connects with the threaded one end of threaded sleeve; Driven pulley is rotatably supported on front wheel carrier, and front-wheel is coaxial with driven pulley, synchronous axial system; The upper end of studdle is fixedly connected bottom U-shaped bracing frame, the other end thread connection of lower end and threaded sleeve; There is power transmission shaft at the top of U-shaped bracing frame by supporting seat transverse direction, rotational support respectively; The two ends of U-shaped crank are nonrotationally assemblied in a corresponding end of the power transmission shaft be positioned at inside U-shaped bracing frame, driving pulley is nonrotationally assemblied in another corresponding end of the power transmission shaft be positioned at outside U-shaped bracing frame respectively, and driving-belt is corresponding to being assemblied on two driving pulleys and driven pulley respectively.This utility model structure is simple, and used unit is few, low cost of manufacture; The thread connection of turning cylinder, studdle and threaded sleeve, can realize the tensioning adjustment of driving-belt and the adjustment of U-shaped crank height, it is reasonable in design; Singlehanded shake U-shaped crank, U-shaped crank is coaxial with driving pulley, synchronous axial system, thus, synchronous axial system coaxial with front-wheel through driving-belt drive driven pulley, its manipulation is easy.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the schematic diagram of a kind of structure of the present utility model.
Labelling in figure: 1. driving pulley, 2. crank, 3.U shape bracing frame, 4. studdle, 5. driving-belt, 6. threaded sleeve, 7. steering spindle, 8. front wheel carrier, 9. front axle, 10. driven pulley, 11. front-wheels, 12. first lock nuts, 13. second lock nuts, 14. crank sleeve pipes, 15. supporting seats, 16. power transmission shafts.
Detailed description of the invention
As shown in Figure 1, a kind of singlehanded actuation means of hand wheelchair, it comprises crank 2, front-wheel 11, and wherein, crank 2 is a U-shaped crank.
In FIG, the singlehanded actuation means of this hand wheelchair also comprises steering spindle 7, threaded sleeve 6, front wheel carrier 8, U-shaped bracing frame 3, studdle 4, two driving pulley 1, driven pulley 10 and two driving-belts 5.
As shown in Figure 1, steering spindle 7 is vertically arranged, and can rotate in actual applications connect with vehicle frame.Lower end and the front wheel carrier 8 of this steering spindle 7 are welded and fixed, and the upper end of steering spindle 7 connects with the threaded one end of threaded sleeve 6.
On front wheel carrier 8, fork-join has front axle 9, and driven pulley 10 warp beam is held and is rotatably supported on this front axle 9, front-wheel 11 by key connecting on driven pulley 10, synchronous axial system coaxial with driven pulley 10.
In FIG, the upper end of studdle 4 is fixedly welded on the bottom of U-shaped bracing frame 3, the lower end of studdle 4 and the other end thread connection of threaded sleeve 6.
In FIG, the top of U-shaped bracing frame 3 is arranged with supporting seat 15 respectively, two power transmission shafts 16 respectively by bearing laterally, be rotatably supported in supporting seat 15.
As shown in Figure 1, the two ends of U-shaped crank 2 are welded in a corresponding end of two power transmission shafts 16 be positioned at inside U-shaped bracing frame 3 respectively, driving pulley 1 is assemblied in respectively by key connecting in another corresponding end of two power transmission shafts 16 be positioned at outside U-shaped bracing frame 3, synchronous axial system coaxial with U-shaped crank 2.
In FIG, two driving-belts 5 are corresponding to being assemblied in driving pulley 1 with on driven pulley 10 respectively.In order to transmission is accurately with steady, fricton-tight during work, have constant gear ratio, as shown in Figure 1, driving pulley 1, driven pulley 10 are synchronous pulley, and driving-belt 5 is Timing Belt.Synchronous belt pulley transmission is achieved between driving-belt 5 and driving pulley 1, driven pulley 10.
For convenience of the hand operation to U-shaped crank 2, reduce the friction of U-shaped crank 2 opponent, as shown in Figure 1, crank 2 is set with a crank sleeve pipe 14.
Steering spindle 7, studdle 4 are respectively fitted with the first lock nut 12, second lock nut 13.The position of the first lock nut 12, second lock nut 13 difference locking screw thread sleeve pipe 6 and steering spindle 7, threaded sleeve 6 and studdle 4.
This utility model in use, by the position of adjustment threaded sleeve 6 with steering spindle 7, studdle 4, to driving-belt 5 realize tensioning adjustment and to U-shaped crank 2 height adjust; Singlehanded shake U-shaped crank 2, U-shaped crank 2 is coaxial with driving pulley 1, synchronous axial system, thus drives through driving-belt 5 that driven pulley 10 is coaxial with front-wheel 11, synchronous axial system, realizes the forward and backward movement of hand wheelchair; When needs turn to, one hand pulls crank 2, and moment of torsion reaches steering spindle 7 realize turning to through U-shaped bracing frame 3, studdle 4, threaded sleeve 6.
This utility model structure is simple, reasonable in design, manipulate easy, low cost of manufacture.
Claims (3)
1. actuation means before the one hand of a hand wheelchair, it comprises a crank, a front-wheel, it is characterized in that: it also comprises a steering spindle, a threaded sleeve, a front wheel carrier, a U-shaped bracing frame, a studdle, two driving pulleys, at least one driven pulley and around two driving-belts be assemblied on driving pulley, driven pulley, wherein, described crank is a U-shaped crank, described steering spindle is vertically arranged, lower end and the described front wheel carrier of this steering spindle are fixedly connected, and the upper end of steering spindle connects with the threaded one end of described threaded sleeve; On front wheel carrier, fork-join has front axle, and described driven pulley is rotatably supported on this front axle, and described front-wheel is nonrotationally assemblied on driven pulley, synchronous axial system coaxial with driven pulley; The upper end of described studdle is fixedly connected in the bottom of U-shaped bracing frame, the lower end of studdle and the other end thread connection of described threaded sleeve; The top of described U-shaped bracing frame is arranged with supporting seat respectively, two power transmission shafts respectively laterally, be rotatably supported in supporting seat; The two ends of described U-shaped crank are nonrotationally assemblied in a corresponding end of two power transmission shafts be positioned at inside U-shaped bracing frame respectively, described driving pulley is nonrotationally assemblied in another corresponding end of two power transmission shafts be positioned at outside U-shaped bracing frame respectively, synchronous axial system coaxial with U-shaped crank.
2. actuation means before the one hand of a kind of hand wheelchair according to claim 1, is characterized in that: described U-shaped crank is set with a crank sleeve pipe.
3. actuation means before the one hand of a kind of hand wheelchair according to claim 1, it is characterized in that: on described steering spindle, studdle, be respectively fitted with lock nut, the position of lock nut difference locking screw thread sleeve pipe and steering spindle, threaded sleeve and studdle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437368.4U CN204744693U (en) | 2015-06-25 | 2015-06-25 | Singlehanded preceding control device of hand wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520437368.4U CN204744693U (en) | 2015-06-25 | 2015-06-25 | Singlehanded preceding control device of hand wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204744693U true CN204744693U (en) | 2015-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520437368.4U Active CN204744693U (en) | 2015-06-25 | 2015-06-25 | Singlehanded preceding control device of hand wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204744693U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104887412A (en) * | 2015-06-25 | 2015-09-09 | 张艺炜 | Single-hand front control device of hand-cranked wheelchair |
-
2015
- 2015-06-25 CN CN201520437368.4U patent/CN204744693U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104887412A (en) * | 2015-06-25 | 2015-09-09 | 张艺炜 | Single-hand front control device of hand-cranked wheelchair |
| CN104887412B (en) * | 2015-06-25 | 2016-12-28 | 张艺炜 | A kind of singlehanded front actuation means of hand wheelchair |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |