CN201500244U

CN201500244U - Wheelchair power machine

Info

Publication number: CN201500244U
Application number: CN2009202374314U
Authority: CN
Inventors: 吴长秋; 吴长锐; 吴长泰; 许俊山
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-10-16
Filing date: 2009-10-16
Publication date: 2010-06-09
Anticipated expiration: 2019-10-16

Abstract

The utility model relates to a wheelchair power machine, comprising a control system, a deceleration differential drive system, a frame and a base connecting mechanism, wherein the control system comprises a steering mechanism and a control mechanism; the deceleration differential drive system comprises a first output half shaft, a second output half shaft and two driving wheels connected with the two output half shafts; and the base connecting mechanism comprises a base and a connecting seat. The steering mechanism and the connecting seat are connected and planted on the collapsible frame, and the deceleration differential drive system also comprises an inner clutch, an outer clutch, an elastic part and a transformation hand wheel which can cause the inner clutch and the outer clutch to be engaged or broken away. The first output half shaft is slid in one driving wheel, the two clutches are arranged under the elastic part, and the second output half shaft is tightly sheathed with the other driving wheel. The power machine adopting the structural design is applied on a traditional manual wheelchair, so that the traditional manual wheelchair can realize electric and manual driving functions. At the same time, the frame of the power machine can be folded, so the use is convenient and reliable.

Description

A kind of wheelchair engine

Technical field

This utility model relates to a kind of engine, particularly a kind of engine that is used for the traction wheel Wheel-chair.

Background technology

The wheel Wheel-chair has brought facility for action inconvenient old people, have great importance for the disabled and old people, wheel Wheel-chair on the market only can rely on electronic travelling mostly at present, though more traditional hand-pushing wheel Wheel-chair is more laborsaving, uses inconvenient when the needs use is manually travelled; Wheel Wheel-chair traction frame complex structure on the market fold the dismounting inconvenience, and steering structure is dumb simultaneously, is restricted when turning before and after needs, designs not hommization.

The patent No. is that one piece of utility model patent of ZL 200420014586.9 has disclosed a kind of electric traction head, with reference to figure 1, it comprises operating system, subtract, the differential drive system, frame and power supply box, operating system comprises steering mechanism and controlling organization, subtract, the differential drive system is by motor, worm gear reducer mechanism, box of tricks and two driving wheels are formed, control system and subtract, the differential drive system is installed on the frame, the battery in the power supply box is connected with controlling organization by power line, is connected with motor by the motor cable again.Two driving wheels (29) in this utility model all are to be fixedly mounted on two output semiaxis, so when this electric traction head is installed on the wheelchair, only can rely on electronic travelling, use inconvenience when manually travelling when needs use.

Therefore, can provide can be electronic not only can be manually, light and handy but also can fold the wheel Wheel-chair of dismantling and seem particularly important.

Summary of the invention

The technical problems to be solved in the utility model is to provide a kind of Wheel-chair engine of taking turns, and this engine is applied on traditional manual pulley Wheel-chair, just can realize electronic, manual driving functions; The support of engine is collapsible, easy to use and reliable simultaneously.

For addressing the above problem, the technical solution of the utility model is: a kind of wheelchair engine, comprise control system, deceleration differential drive system, support and support bindiny mechanism, described control system comprises steering mechanism and controlling organization, described deceleration differential drive system includes the first output semiaxis, the second output semiaxis, two driving wheels that link to each other with two output semiaxis, described support bindiny mechanism includes support and Connection Block, steering mechanism is connected with Connection Block assigns on folding support, described deceleration differential drive system also includes internal clutch, outer clutch, elastic component and can make internal clutch, outer clutch is in the conversion handwheel of engagement or disengaged position, first the output semiaxis is sliding in a driving wheel joins described two clutches under elastic component, the second output semiaxis another driving wheel that is locked.

When outer clutch breaks away from internal clutch under spring compression, at this moment the driving wheel on the first output semiaxis is in from the shelves idling conditions, can slide by hand push; When inside and outside clutch was meshing with each other and connect the driving wheel of first output on the semiaxis, driving wheel was in running order, the instruction by control system at this moment, electronic the travelling that the wheel Wheel-chair can advance or retreat.

As improvement of the present utility model, described support comprises first hinge joint and the second hinge joint, fastener, joint pin, anticreep finger external member, connects left hinge joint and right hinge saves by joint pin; Left side hinge joint is provided with the anticreep driving lever, and fastener connects wheelchair and expansion link.It is compact reliable that this structure makes support be connected with changement; When the needs fully collapsible invalid's chair, need only vertically dial the anticreep finger at folding support, make the separation of wheelchair engine, pull out removable pin again as long as upwards gently carrying can rolling over to prop up puts up angle, can and take turns Wheel-chair and fold synchronously, need not dismantle.

As further improvement of the utility model, described Connection Block and support junction are provided with damping glue post, make steering mechanism and wheelchair head keep balance, damping and anti-sway, sensation safer and more comfortable when user uses.

As further improvement of the utility model, described Connection Block is provided with spring housing and is positioned at the spring of spring housing, and steering mechanism is hinged by spring housing and support.This structure make steering mechanism to can before multi-angle oblique push away pendulum, easy to use.

Description of drawings

Fig. 1 is the structural representation of existing a kind of electric traction head embodiment;

Fig. 2 is one of structural representation of a kind of wheelchair engine of this utility model embodiment;

Fig. 3 be a kind of wheelchair engine of this utility model embodiment structural representation two;

Fig. 4 be a kind of wheelchair engine of this utility model embodiment structural representation three;

Fig. 5 is one of deceleration differential drive system mechanism sketch map among this utility model embodiment;

Fig. 6 be among this utility model embodiment deceleration differential drive system mechanism sketch map two;

Fig. 7 is one of motor among this utility model embodiment, reduction box structural scheme of mechanism;

Fig. 8 is one of internal clutch among this utility model embodiment, outer clutch configuration sketch map;

Fig. 9 is two of internal clutch among this utility model embodiment, an outer clutch configuration sketch map;

Figure 10 is one of removable supporting structure sketch map among this utility model embodiment;

Figure 11 be among this utility model embodiment removable supporting structure sketch map two;

Figure 12 be among this utility model embodiment removable supporting structure sketch map three;

Figure 13 is the structural representation that support connects among this utility model embodiment;

Figure 14 is one of this utility model embodiment application example sketch map;

Figure 15 is two of this utility model embodiment application example sketch map.

Among the figure:

1. soft shaft coupling 17. electromagnetic brakes of the outer clutch of reduction box 2. bearing blocks 3. worm gears 4. worm screws 5. straight bevel gears 6. first output shafts 60. second output shafts 7. worm gear platens 8. short pin shafts 9. worm gear support rings 10. internal clutch 11. 12. tower springs, 120. springs 13. conversion handwheels, 14. driving wheel 140. rollers, 15. motors 16. 18. steering mechanism 19. power keys, 20. voltameters, 21. speed regulators, 22. horn buttons 23. push rod 24. that advances retreats push rod 25. controllers 26. folding support group 27. Connection Blocks 28. damping rubber posts 29. supports 30. spring housings 31. left fastener 32. right fastener 33 expansion links 34. first hinges and saves 35. second hinges and save 36. anticreep driving levers, 37. joint pins, 38. removable pins, 39. T-shaped connecting holes, 40. crosspins

The specific embodiment

Come specific embodiment of the utility model is described below in conjunction with accompanying drawing.

In a kind of embodiment of the present utility model, see also Fig. 2 to Figure 15, electronic, manual wheelchair engine comprises control system, deceleration differential drive system, folding support, support bindiny mechanism and power supply box.

Control system comprises steering mechanism 18, controller 25, voltameter 20, horn button 22, power supply key 19, speed regulator 21, the push rod 23 that advances is installed in the steering mechanism 18, retreats push rod 24, can make the driving functions that advances, retreats of stepless speed regulation.When need stop, only need unclamp any push rod 23 or retreat push rod 24 of advancing, controller 25 promptly instructs the 17 outage brakes of electromagnetic brake device.

Deceleration differential drive system comprises worm screw 4 in motor 15, electromagnetic brake device 17 and the reduction box, worm gear 3, two groups of four straight bevel gears 5, first output shafts 6 and is positioned at driving wheel 14, first output shaft 60 on first output shaft 6 and the wheel that is positioned on first output shaft 60 rolls 140.Motor 15 connects soft shaft coupling 16 and reduction box 1 respectively, and worm screw 4, worm gear 3 in the reduction box 1 are hollow setting, by two worm gear platens 7, short pin shaft 8, straight bevel gear 5 are assembled into a Worm-gear assembly.After reduction box 1 and bearing block 2 and worm gear support ring 9,

first output shaft

6,60 combinations of second output shaft, constitute a deceleration differential box for 3 groups with worm gear.

First output shaft 6 in driving wheel 14 sliding join one group of internal clutch 10 and outside clutch 11, the second output shafts 60 fixed idler whells 140; Internal clutch 10 close-fittings and can be in the idle running of first output shaft 6 on wheel hub, and outer clutch 11 endoporus have the gathering sill that 45 depths of spending angles do not wait in two axles, slide in the alignment pin of first output shaft 6; Described conversion handwheel 13 connects outer clutch 11, under the compression of tower spring 12, to pull out and to push and to change 45 degree clockwise, counterclockwise, makes two kinds of difference in functionalitys that mesh and break away from.

Described folding support 26, comprise first hinge joint, 34, second hinge joint 35, the expansion link 33 that connect by joint pin 37, first hinge joint, 34 and second hinge joint 35 can be done the adjusting of support width on expansion link 33, wrist formula left side fastener 31 is connected wheelchair and expansion link 33 with right fastener 32, connect T-shaped connecting hole 39 on first hinge joint 34 and be furnished with anticreep driving lever 36, make when connecting the wheelchair head, play and prevent the function that comes off.Described removable pin 38 directly inserts the locating hole of left and right sides hinge joint 35 when support is in level, be installed on the wheelchair folding support is disposable; When the needs fully collapsible invalid's chair, as long as the anticreep driving lever 36 on the cocked support is isolated the wheelchair engine, on folding support, pull out removable pin 38 again, gently put forward 26 one-tenth little flexions of folding support, can be folding synchronously with wheelchair, need not dismantle.

Described support bindiny mechanism includes support 29 and Connection Block 27, the U type groove of Connection Block 27 is connected with steering mechanism 18 with folding support 26 respectively, be equipped with two damping glue posts 22 in Connection Block 27 bottoms, make steering mechanism and wheelchair head keep balance, damping and anti-sway.Described support 29 connects Connection Block 27 by the M10 screw, and the spring housing 30 in support 29 upper pillar stands is under the effect of the compression of spring 120 and damping, and it is comfortable that steering mechanism 18 is experienced in operating process.

Described control system is assigned on the folding support 26 separably with the deceleration differential drive system that is connected, and connects controller 25 by power supply box by power line, by motor cable, connection motor 15, forms a wheelchair engine again.

Start principle of the present utility model is as follows: when motor 15 does not have energized, electromagnetic brake device 17 is in free state, pull out conversion handwheel 13 and be rotated counterclockwise 45 degree location, make outer clutch 11 under 12 compressions of tower spring, break away from internal clutch 10, at this moment left driving wheel 14 is in from the shelves idling conditions, can slide by hand push.

If when wanting electronic travelling, power supply key on steering mechanism's 18 instrument boards 19 is inserted energising, the conversion handwheel 13 45 degree location that turn clockwise, under the effect of tower spring 12, inside and outside clutch is meshing with each other and to connect driving wheel 14 in running order, at this moment press and advance push rod 23 or retreat push rod 24, by controller 25 instructions, electronic the travelling that can advance or retreat.

Steering mechanism 18 and T-shaped Connection Block 27 assign on the folding support 26, turn about trailed wheelchair can be done.The deceleration differential box changes two groups of four straight bevel gears by the worm gear driving-belt, in the orthogonal transmission of axial line, this structure make both sides driving wheel 14 and roller 140 about when turning because resistance forms the speed by differential output, thereby make the wheelchair engine free and relaxed when turning.

If unclamp push

rod

23 or 24, motor 15 outages, electromagnetic brake device 17 is activated.At this moment taking turns Wheel-chair slows down until parking.According to the travel speed needs, speed regulator 21 can be done stepless speed regulation.Person in addition advances, retreats the speed of push rod in also travelling with the fine setting of pushing dynamics.

With adopting the engine of said structure design to be applied on traditional manual pulley Wheel-chair, just can realize electronic, manual driving functions; The support of engine is collapsible, easy to use and reliable simultaneously.

Above-described only is principle of the present utility model and preferred embodiment.Should be pointed out that for the person of ordinary skill of the art, on the basis of this utility model principle, can also make some other modification, also should be considered as protection domain of the present utility model.

Claims

1. wheelchair engine, comprise control system, deceleration differential drive system, support and support bindiny mechanism, described control system comprises steering mechanism and controlling organization, described deceleration differential drive system includes the first output semiaxis, the second output semiaxis, two driving wheels that link to each other with two output semiaxis, described support bindiny mechanism includes support and Connection Block, steering mechanism is connected with Connection Block assigns on folding support, it is characterized in that: described deceleration differential drive system also includes internal clutch, outer clutch, elastic component and make internal clutch, outer clutch is in the conversion handwheel of engagement or disengaged position, first the output semiaxis is sliding in a driving wheel joins described two clutches under elastic component, the second output semiaxis another driving wheel that is locked.

2. a kind of wheelchair engine according to claim 1 is characterized in that: described support comprises first hinge joint and the second hinge joint, fastener, joint pin, anticreep finger external member, connects left hinge joint and right hinge saves by joint pin; Left side hinge joint is provided with the anticreep driving lever, and fastener connects wheelchair and expansion link.

3. a kind of wheelchair engine according to claim 1 is characterized in that: described elastic component is the turriform spring.

4. a kind of wheelchair engine according to claim 1 is characterized in that: described Connection Block and support junction are provided with damping glue post.

5. a kind of wheelchair engine according to claim 4 is characterized in that: described Connection Block is provided with spring housing and is positioned at the spring of spring housing, and steering mechanism is hinged by spring housing and support.