CN2840970Y - Power starting structure of power auxiliary wheeled chair - Google Patents

Abstract

The utility model relates to a power starting structure of a power auxiliary wheel chair, which is mainly formed by that a motor and a starting mechanism are respectively arranged on each of wheels of both sides of the wheel chair. When a hand push wheel is wrenched and rotated by a user to enable the wheel chair to move forwards or backwards, a driving disk of the starting mechanism can be driven to rotate by the hand push wheel when the hand push wheel is wrenched and rotated by force to cause an actuating element to be pushed and contacted to a shallow end of a stage sliding groove form a deep end of the stage sliding groove; when the actuating element is positioned on the shallow end area, a touching disk can be pushed outwards by the actuating element to extend to just trigger a switch to actuate to start the motor to rotate to carry out auxiliary power output of the wheel chair. Especially, the utility model has the advantages of simple structure and component assembly, good structural strength and reliable actuating process; failure rate and manufacture cost can also be reduced.

Description

The dynamic start arrangement of power-assisted wheelchair

Technical field

This utility model is the dynamic start arrangement of power-assisted wheelchair, refer to especially when user application of force switching Hand-push ring, but the trigger switch start makes motor starting output auxiliary power drive wheelchair and travels.

Background technology

For action inconvenient crippled, traditional push chairs except the walking-replacing tool of the best, Zui Jia rehabilitation instrument especially; Because, stir the process that wheel travels when user with both hands, the motion of user arm and the rehabilitation of health are provided; It should be noted that traditional push chairs when mild road conditions are travelled, does not have the difficulty on travelling for user; But when road conditions had upstroke slope, it was comparatively painstaking just to seem for user; And surpass 15 when spending when upstroke slope, then almost can't travel voluntarily, and must be dependent on other people assist implementation side be able to by;

Therefore, the electric wheelchair industrial circle develops, can integrate manpower and power-actuated power-assisted type wheelchair, mainly be in the hub for vehicle wheel of wheelchair, to be equipped with electro-motor, and with the starting switch of electro-motor, be designed to when user is pulled the Hand-push ring rotation, the form that can trigger, for example: United States Patent (USP) No. 6230831, No. 5818189, No. 6354390 and No. 5878829 ... Deng; By this, when user is pulled the Hand-push ring rotation, can make revolution by in good time start switch, use the drive wheelchair and travel;

It should be noted that, in the aforementioned operation with Hand-push ring gauge tap and motor start, only promptly caused the danger of motor start by false touch gently for fear of Hand-push ring, usually Hand-push ring can be designed to have actuating travel, that is only after Hand-push ring was rotated a distance really, motor was just understood the start running, but the trip can not be long, otherwise have the slow operating experience of start;

In the common design, can be dependent on the detecting of accurate electronic circuit or mechanism, in order to do control power output that can be in good time as the manpower power; Control as motor starting but rely on accurate electronic circuit fully, not only fault rate height and cost are also high;

Therefore, the inventor does one's utmost thinking, and is then not only accurate than direct detecting manpower again with the shake-up of this mechanical displacement as switch if after can be earlier converting people's the application of force to mechanical displacement output, and structure is also significantly simplified and strengthened.

The utility model content

Main purpose of the present utility model, be to be to provide a kind of when user switching hand-pushing wheel carries out the wheelchair mobility operation, hand-pushing wheel is by in the process of application of force switching, the driving-disc that can drive actuating mechanism rotates, and the interlock trigger switch from the deep end of class's chute toward the pushing and pressing of shallow end direction, touching disc is stretched out, and then the trigger switch start, and starter rotates, and carries out the motor starting structure of power-assisted wheelchair of the output of auxiliary power.

For achieving the above object, the technical scheme that this utility model adopted is: a kind of motor starting structure of power-assisted wheelchair, mainly respectively dispose a motor and actuating mechanism institute constitutor in the wheel of wheelchair both sides;

This wheelchair, both sides respectively dispose a wheel, and a wheel hub is established in this wheel center position, and a ccontaining motor in the wheel hub makes the rotor of motor set firmly mutually with wheel hub, and the stator of motor is fixedlyed connected with the vehicle frame of wheelchair;

This actuating mechanism is disposed at wheel hub one side of wheelchair, can be used as the motor power actuating mechanism of wheelchair, and it mainly comprises:

One cap is established with the one side closed lid of wheel hub, and the cap center offers an axis hole, is equipped with a plurality of first class's slotted eyes and a plurality of second class's slotted eye respectively in different radial positions, then protrude in the outer face of cap form a plurality of spacing protruding;

A plurality of first trigger switch, two ends are formed separately and are wide axle and thin axle; Be embedded in first class's slotted eye of cap after making the sheathed spring of thin axle head of first trigger switch, make first trigger switch in first class's slotted eye, carry out elastic displacement;

A plurality of second trigger switch, two ends are formed separately and are wide axle and thin axle; Be embedded in second class's slotted eye of cap after making the sheathed spring of thin axle head of second trigger switch, make second trigger switch in second class's slotted eye, carry out elastic displacement;

One first touching disc is equipped on the inner face of cap, and combines with the thin axial end of first trigger switch with end face;

One second touching disc is equipped on the inner face of cap, and combines with the thin axial end of second trigger switch with end face;

One driving-disc is equipped on the cap outer face, is located at the axis hole of cap with a side shaft pipe box, can see through a margining tablet and be incorporated into the central siphon end, and the restriction driving-disc is deviate from cap; On driving-disc, offer the spacing hole with spacing protruding correspondence position and quantity, make the spacing protruding spacing hole that is positioned at, make driving-disc must carry out the rotation operation of spacing hole stroke range in cap one side; End face in driving-disc and cap closing, and corresponding position, position with class's slotted eye, offer a plurality of first class's chutes and a plurality of second class's chute, first and second class chute two ends little by little are configured as shallow end and deep end respectively continuously, but the direction of offering of the shallow end of first and second class's chute and deep end is an inverse state;

A plurality of back-moving springs, be equipped between cap and the driving-disc, and seen through the elastic force of back-moving spring, make the deep end of the wide shaft end of first trigger switch and first class's chute keep normality to support and close, and the deep end of the wide shaft end of second trigger switch and second class's chute keeps normality to closing;

One Hand-push ring can see through binding end and driving-disc concrete mutually;

One first switch can be fixedly arranged on motor stator and corresponding with first touching disc, and first switch must open and close by first touching disc is triggered, and advancing and travelling startup or close the motor operation;

One second switch can be fixedly arranged on motor stator and corresponding with second touching disc, and second switch must open and close by second touching disc is triggered, and retreating to travel startup or close the motor operation.

The motor starting structure of described power-assisted wheelchair can be put a bearing between the axis hole of the central siphon of driving-disc and cap.

The motor starting structure of described power-assisted wheelchair, can be provided with in the driving-disc outer rim groove is set, be provided with projection, be provided with in the groove and back-moving spring can be able to be arranged in the cap end face, and the end of back-moving spring and projection support and close, and back-moving spring elasticity is equipped between cap and the driving-disc.

The motor starting structure of described power-assisted wheelchair, this switch can see through proximity switch and constitute, and in order to do when touching disc during near proximity switch, proximity switch can carry out the operation that opens or closes of switch.

A kind of motor starting structure of power-assisted wheelchair mainly respectively disposes a motor and actuating mechanism institute constitutor in the wheel of wheelchair both sides;

This wheelchair, both sides respectively dispose a wheel, and a wheel hub is established in this wheel center position, and a ccontaining motor in the wheel hub makes the rotor of motor set firmly mutually with wheel hub, and the stator of motor is fixedlyed connected with the vehicle frame of wheelchair;

This actuating mechanism is disposed at wheel hub one side of wheelchair, can be used as the motor power actuating mechanism of wheelchair, and it mainly comprises:

One cap is established with the one side closed lid of wheel hub, and the cap center offers an axis hole, is equipped with a plurality of classes slotted eye in radial position, then protrude in the outer face of cap form a plurality of spacing protruding;

A plurality of trigger switch, two ends are formed separately and are wide axle and thin axle; Be embedded in class's slotted eye of cap after making the sheathed spring of thin axle head of trigger switch, make trigger switch must in class's slotted eye, carry out elastic displacement;

One touching disc is equipped on the inner face of cap, and combines with the thin axial end of trigger switch with end face;

One driving-disc is equipped on the cap outer face, is located at the axis hole of cap with a side shaft pipe box, can see through a margining tablet and be incorporated into the central siphon end, and the restriction driving-disc is deviate from cap; On driving-disc, offer the spacing hole with spacing protruding correspondence position and quantity, make the spacing protruding spacing hole that is positioned at, make driving-disc must carry out the rotation operation of spacing hole stroke range in cap one side; In the end face of driving-disc and cap closing, and with class slotted eye corresponding position, offer a plurality of classes chute, these class chute two ends little by little are configured as shallow end and deep end respectively continuously;

A plurality of back-moving springs are equipped between cap and the driving-disc, and are seen through the elastic force of back-moving spring, make the wide shaft end of trigger switch and the deep end of class's chute keep normality to closing;

One Hand-push ring can see through binding end and driving-disc concrete mutually;

One switch can be fixedly arranged on motor stator and corresponding with touching disc, and switch must open and close by touching disc is triggered, and advancing and travelling startup or close the motor operation.

The use the beneficial effects of the utility model are: this utility model is different from tradition is directly done strong and weak detecting to the thrust numerical value of user design; But the user manpower is seen through mechanism design, and make it convert (referring to that touching disc stretches out displacement) behind the mechanical displacement to, again with this mechanical displacement touch switch member, use the running that starts auxiliary power; The structural design that this utility model converts manpower to mechanical displacement quite simplify and structural strength good, not only help industrial circle the production assembly, reduce fault rate, reduce cost, because it is certain that structure is simplified start, more can improve the reliability and the safety of use.This utility model not only structure and member is formed homogeneous phase when simplifying, and structural strength is good, and the certain fault rate of member start is low, and can meet the actual demand of user.

Description of drawings

Fig. 1 is the three-dimensional exploded view of this utility model main member.

Fig. 2 is the local amplification stereogram of Fig. 1.

Fig. 3 is the driving-disc amplification stereogram of Fig. 1.

Fig. 4 is the bonding state schematic perspective view of Fig. 2.

Fig. 5 is this utility model Wheelchair structure sketch map.

Fig. 6 is a not actuator state amplification schematic side view of this utility model driving-disc.

Fig. 7 is the mobility operation view of advancing of Fig. 6.

Fig. 8 be Fig. 6 retreat the mobility operation view.

Fig. 9 is a not actuator state amplification cross-sectional schematic of this utility model driving-disc.

Figure 10 is that advancing of Fig. 9 exercised the mode of operation sketch map.

Figure 11 be Fig. 9 retreat the mobility operation view.

[primary clustering symbol description]

20 wheelchairs, 21 wheels

22 wheel hubs, 23 motors

231 rotors, 232 stators

30 caps, 31 axis holes

32 first class's slotted eyes, 33 second class's slotted eyes

34 spacing protruding 35 projections

40 first trigger switch, 41 wide axles

42 thin axle 43 screws

44 springs

50 second trigger switch, 51 wide axles

52 thin axle 53 screws

54 springs

60 first touching discs, 61 screws

70 second touching discs, 71 screws

80 driving-discs, 81 central siphons

82 margining tablets, 83 bearings

84 spacing holes, 85 first class's chutes

851 deep ends, 852 shallow end

86 second class's chutes, 861 deep ends

862 shallow end 87 are provided with groove

90 back-moving springs

100 Hand-push rings, 101 binding ends

200 first switches

300 second switches

The specific embodiment

About this utility model for reaching above-mentioned purpose, the technology that is adopted, means and effect, lift below a preferable possible embodiments cooperate graphic detailed description as after; At first, please cooperate and consult Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in Figure 9, the motor starting structure of the power-assisted wheelchair that this utility model embodiment is provided, it mainly is respectively to dispose a motor and actuating mechanism institute constitutor in the wheel of wheelchair both sides; Wherein:

This wheelchair 20, both sides respectively dispose a wheel 21, and this wheel 21 is provided with a wheel hub 22 in the center, form accommodation space in this wheel hub 22 and supply a motor 23 ccontaining, and this motor 23 can see through battery (figure does not show) power supply running; Motor 23 of the present utility model can be outer rotor-type motor 23, make the rotor 231 of motor 23 set firmly mutually with wheel hub 22, the stator 232 of motor 23 is then fixedlyed connected with the vehicle frame 201 of wheelchair 20, drives wheels 21 operation of travelling in order to do making wheelchair 20 must see through motor 23;

This actuating mechanism, be wheel hub 22 1 sides that are disposed at wheelchair 20, and can be used as the motor 23 dynamic start mechanisms of wheelchair 20, it comprises that mainly a cap 30, a plurality of first trigger switch 40, a plurality of second trigger switch 50, one first touching disc 60, one second touching disc 70, a driving-disc 80, a plurality of back-moving spring 90, a Hand-push ring 100, one first switch 200 and a second switch 300 constitute, wherein:

This cap 30, establish with the one side closed lid of the accommodation space of wheel hub 22, offer an axis hole 31 in the center of cap 30, and in different radial positions place respectively ring-type be provided with a plurality of first class's slotted eyes 32 and a plurality of second class's slotted eye 33, then protrude in the outer face of cap 30 and form a plurality of spacing protruding 34; In addition, can be provided with plurality of bump 35 in cap 30 end faces;

This first trigger switch 40, two ends can be formed separately the class structure into wide axle 41 and thin axle 42, and offer screw 43 in the end face of thin axle 42; Behind the sheathed spring 44 of thin axle 42 ends of first trigger switch 40 it is embedded in first class's slotted eye 32 of cap 30, and the wall edge that makes spring 44 1 ends and first class's slotted eye 32 supports and closes, in order to do making first trigger switch 40 carry out elastic displacement in first class's slotted eye 32;

This second trigger switch 50, two ends can be formed separately the class structure into wide axle 51 and thin axle 52, and offer screw 53 in the end face of thin axle 52; Behind the sheathed spring 54 of thin axle 52 ends of second trigger switch 50 it is embedded in second class's slotted eye 33 of cap 30, and the wall edge that makes spring 54 1 ends and second class's slotted eye 32 supports and closes, and makes second trigger switch 50 carry out elastic displacement in second class's slotted eye 33;

This first touching disc 60 sets the inner face that is positioned at cap 30, and with the thin axle 42 end face screws 43 of its end face and first trigger switch 40, sees through screw 61 locking combinations;

This second touching disc 70 sets the inner face that is positioned at cap 30, and with the thin axle 52 end face screws 53 of its end face and second trigger switch 50, sees through screw 71 locking combinations;

This driving-disc 80, be equipped on cap 30 outer faces, central siphon 81 with the one side is sheathed in the axis hole 31 of cap 30, can see through a margining tablet 82 and be incorporated into central siphon 81 ends, use restriction driving-disc 80 and deviate from cap 30, this margining tablet 82 can see through a C type buckle structure and reach, and can put a bearing 83 between central siphon 81 and axis hole 31, also can see through a margining tablet 82 restriction bearings 83 location; On driving-disc 80, offer the spacing hole 84 with spacing protruding 34 correspondence positions and quantity, and can make spacing protruding 34 to be positioned at spacing hole 84, make driving-disc 80 must carry out the rotation operation of spacing hole 84 stroke range in cap 30 1 sides; In driving-disc 80 its with cap 30 end face of closing mutually, and corresponding position, position with first and second class's slotted eye 3233, offer a plurality of first class's chutes 85 and a plurality of second class's chute 86, first and second class's chute 8586 its two ends are configured as shallow end 851 861 and deep end 852 862 respectively continuously and little by little, but the direction of offering of both shallow end 851 861 of first and second class's chute 85 86 and deep end 852 862 is an inverse state; In addition, can be provided with a plurality of grooves 87 that are provided with in driving-disc 80 outer rims;

This back-moving spring 90 is equipped between cap 30 and the driving-disc 80, and back-moving spring 90 can be arranged at being provided with in the groove 87 of driving-disc 80, and the projection 35 of the end of back-moving spring 90 and cap 30 is to closing; And being seen through the elastic force of back-moving spring 90, wide axle 41 ends that make first trigger switch 40 keep normalities to support with the deep end 852 of first class's chute 85 closing, and the deep end 862 maintenance normalities of wide axle 51 ends of second trigger switch 50 and second class's chute 86 are to closing;

This Hand-push ring 100, it forms binding end 101 in centre bit, Hand-push ring 100 can see through binding end 101 and driving-disc 80 concrete mutuallies, and must with driving-disc 80 interlock mutually;

This first switch 200 can be fixedly arranged on motor 23 stators 232, and can be used as the starting switch of motor 23 runnings; Make first switch, 200 1 sides corresponding, and first switch 200 must open and close the operation of advancing and travelling and starting or cut out auxiliary driving motor 23 by first touching disc 60 is triggered with first touching disc 60;

This second switch 300 can be fixedly arranged on motor 23 stators 232, and can be used as the starting switch of motor 23 runnings; Make second switch 300 1 sides corresponding, and second switch 300 must open and close by second touching disc 70 is triggered, retreat the operation of travelling and starting or closing auxiliary driving motor 23 with second touching disc 70;

The above assembly that is each member of this utility model and structure concerns the position, below its user mode is described in detail as follows:

Please consult Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, shown in Figure 6 again, see through structural design of the present utility model, when user switching Hand-push ring 100 (clockwise direction switching) or (counterclockwise switching) when carrying out the mobility operation of wheelchair 20 backward forward, Hand-push ring 100 can drive simultaneously that wheel 21 rotates and make motor 23 output auxiliary powers by actuating mechanism.The procedure declaration that motor 23 is activated is as follows below:

At first, when user is pulled Hand-push ring 100 and is advanced mobility operation (switching of Hand-push ring clockwise direction), the binding end 101 of Hand-push ring 100 and driving-disc 80 concrete mutuallies, so driving-disc 80 can be driven by Hand-push ring 100 and rotates; The rotational travel of driving-disc 80 is that limit limited hole 84 and spacing protruding 34, when spacing protruding 34 processes that are moved to spacing hole 84 1 ends gradually simultaneously, wide axle 41 ends of first trigger switch 40 just can change from deep end 852 positions of first class's chute 85 and are positioned at shallow end 851 positions, when first trigger switch 40 is positioned at the start zone of shallow end 851, first trigger switch 40 can be toward the 42 direction displacements of thin axle, because first touching disc 60 and first trigger switch, 40 thin axle 42 end concrete mutuallies, therefore first touching disc 60 can be stretched (as Fig. 7 to extrapolation by first trigger switch 40, shown in Figure 10), stretching out of first touching disc 60 just can trigger 200 starts of first switch, carries out the auxiliary power output running of motor 23; At this moment, second trigger switch 50 is that deep end 862 scopes that are positioned at second class's chute 86 move, thereby second touching disc 70 can not stretch out, and second switch 300 also can start;

Moreover, when user is pulled Hand-push ring 100 and is retreated mobility operation (the operator throw-out collar counterclockwise rotates); The rotational travel of driving-disc 80 is that limit limited hole 84 and spacing protruding 34, when spacing protruding 34 processes that are moved to spacing hole 84 1 ends gradually simultaneously, wide axle 51 ends of second trigger switch 50 just can change from deep end 862 positions of second class's chute 86 and are positioned at shallow end 861 positions, when second trigger switch 50 is positioned at the start zone of shallow end 861, second trigger switch 50 can be toward the 52 direction displacements of thin axle, because second touching disc 70 and second trigger switch, 50 thin axle 52 end concrete mutuallies, therefore second touching disc 70 can be stretched to extrapolation by second trigger switch 50 and (see also Fig. 8, shown in Figure 11), stretching out of second touching disc 70 just can trigger second switch 300 starts, and carries out the output running of motor 23 auxiliary powers; At this moment, first trigger switch 40 is that deep end 851 scopes that are positioned at first class's chute 85 move, thereby first touching disc 60 can not stretch out, and first switch 200 also can start.

Through above explanation as can be known, operator's application of force switching Hand-push ring not only is able to the Manpower propulsion of bicycle wheel and travels, and the moment of Hand-push ring rotation, must be through actuating mechanism and with seasonal motor running output auxiliary power; In other words, the output of the auxiliary power of motor only can be carried out in operator's switching Hand-push ring; With regard to the wheelchair user, not only can possess the function of the rehabilitation of arm motion, and also unlikely again too effort in the operation, especially when the wheelchair up-hill journey, seeing through this utility model design wheelchair user, upward slope easily voluntarily can drive safely.

The subsidiary person of carrying is, the employed switch of this utility model, mainly be to get it can carry out that circuit is closed and the open function person gets final product, this utility model is to see through touching disc as switch triggering person, touching disc can be along with the wheel rotation of travelling, and it is good therefore can adopting the non-contact type switch, for example can adopt proximity switch (PROXIMITY SWITCH) as switch of the present utility model, in order to do when touching disc during near proximity switch, proximity switch can carry out the open and close operation of switch.

Pass through above explanation as can be known, the utility model is different from tradition and directly user's thrust numerical value is detectd as power The design of surveying; But user's manpower is seen through mechanism design, (refer to that touching disc stretches after making it convert mechanical displacement to Go out displacement), again with this mechanical displacement touch switch member, use the running that starts auxiliary power; The utility model The structural design that converts manpower to mechanical displacement quite simplify and structural strength good, not only be conducive to the life of industrial circle Produce assembly, reduce trouble, reduce cost, because that structure is simplified start is certain, more can improve the reliability of use And security.

Claims (5)

1. the motor activation structure of a power-assisted wheelchair mainly respectively disposes a motor and and activates mechanism and constitute in the wheel of wheelchair both sides; It is characterized in that:

This wheelchair, both sides respectively dispose a wheel, and a wheel hub is established in this wheel center position, and a ccontaining motor in the wheel hub makes the rotor of motor set firmly mutually with wheel hub, and the stator of motor is fixedlyed connected with the vehicle frame of wheelchair;

This actuating mechanism is disposed at wheel hub one side of wheelchair, can be used as the motor power actuating mechanism of wheelchair, and it mainly comprises:

One cap is established with the one side closed lid of wheel hub, and the cap center offers an axis hole, is equipped with a plurality of first class's slotted eyes and a plurality of second class's slotted eye respectively in different radial positions, then protrude in the outer face of cap form a plurality of spacing protruding;

A plurality of first trigger switch, two ends are formed separately and are wide axle and thin axle; Be embedded in first class's slotted eye of cap after making the sheathed spring of thin axle head of first trigger switch, make first trigger switch in first class's slotted eye, carry out elastic displacement;

A plurality of second trigger switch, two ends are formed separately and are wide axle and thin axle; Be embedded in second class's slotted eye of cap after making the sheathed spring of thin axle head of second trigger switch, make second trigger switch in second class's slotted eye, carry out elastic displacement;

One first touching disc is equipped on the inner face of cap, and combines with the thin axial end of first trigger switch with end face;

One second touching disc is equipped on the inner face of cap, and combines with the thin axial end of second trigger switch with end face;

One driving-disc is equipped on the cap outer face, is located at the axis hole of cap with a side shaft pipe box, can see through a margining tablet and be incorporated into the central siphon end, and the restriction driving-disc is deviate from cap; On driving-disc, offer the spacing hole with spacing protruding correspondence position and quantity, make the spacing protruding spacing hole that is positioned at, make driving-disc must carry out the rotation operation of spacing hole stroke range in cap one side; End face in driving-disc and cap closing, and corresponding position, position with class's slotted eye, offer a plurality of first class's chutes and a plurality of second class's chute, first and second class chute two ends little by little are configured as shallow end and deep end respectively continuously, but the direction of offering of the shallow end of first and second class's chute and deep end is an inverse state;

A plurality of back-moving springs, be equipped between cap and the driving-disc, and seen through the elastic force of back-moving spring, make the deep end of the wide shaft end of first trigger switch and first class's chute keep normality to support and close, and the deep end of the wide shaft end of second trigger switch and second class's chute keeps normality to closing;

One Hand-push ring can see through binding end and driving-disc concrete mutually;

One first switch can be fixedly arranged on motor stator and corresponding with first touching disc, and first switch must open and close by first touching disc is triggered, and advancing and travelling startup or close the motor operation;

One second switch can be fixedly arranged on motor stator and corresponding with second touching disc, and second switch must open and close by second touching disc is triggered, and retreating to travel startup or close the motor operation.

2. the motor activation structure of power-assisted wheelchair according to claim 1 is characterized in that: can put a bearing between the axis hole of the central siphon of driving-disc and cap.

3. the motor activation structure of power-assisted wheelchair according to claim 1, it is characterized in that: can be provided with in the driving-disc outer rim groove is set, be provided with projection in the cap end face, be provided with in the groove and back-moving spring can be able to be arranged at, and the end of back-moving spring and projection support and close, and back-moving spring elasticity is equipped between cap and the driving-disc.

4. the motor activation structure of power-assisted wheelchair according to claim 1 is characterized in that: this switch can see through proximity switch and constitute, and in order to do when touching disc during near proximity switch, proximity switch can carry out the operation that opens or closes of switch.

5. the motor activation structure of a power-assisted wheelchair mainly respectively disposes a motor in the wheel of wheelchair both sides and an actuating mechanism constitutes; It is characterized in that:

This wheelchair, both sides respectively dispose a wheel, and a wheel hub is established in this wheel center position, and a ccontaining motor in the wheel hub makes the rotor of motor set firmly mutually with wheel hub, and the stator of motor is fixedlyed connected with the vehicle frame of wheelchair;

This actuating mechanism is disposed at wheel hub one side of wheelchair, and the motor power that can be used as wheelchair activates mechanism, and it mainly comprises:

One cap is established with the one side closed lid of wheel hub, and the cap center offers an axis hole, is equipped with a plurality of classes slotted eye in radial position, then protrude in the outer face of cap form a plurality of spacing protruding;

A plurality of trigger switch, two ends are formed separately and are wide axle and thin axle; Be embedded in class's slotted eye of cap after making the sheathed spring of thin axle head of trigger switch, make trigger switch must in class's slotted eye, carry out elastic displacement;

One touching disc is equipped on the inner face of cap, and combines with the thin axial end of trigger switch with end face;

One driving-disc is equipped on the cap outer face, is located at the axis hole of cap with a side shaft pipe box, can see through a margining tablet and be incorporated into the central siphon end, and the restriction driving-disc is deviate from cap; On driving-disc, offer the spacing hole with spacing protruding correspondence position and quantity, make the spacing protruding spacing hole that is positioned at, make driving-disc must carry out the rotation operation of spacing hole stroke range in cap one side; In the end face of driving-disc and cap closing, and with class slotted eye corresponding position, offer a plurality of classes chute, these class chute two ends little by little are configured as shallow end and deep end respectively continuously;

A plurality of back-moving springs are equipped between cap and the driving-disc, and are seen through the elastic force of back-moving spring, make the wide shaft end of trigger switch and the deep end of class's chute keep normality to closing;

One Hand-push ring can see through binding end and driving-disc concrete mutually;

One switch can be fixedly arranged on motor stator and corresponding with touching disc, and switch must open and close by touching disc is triggered, and advancing and travelling startup or close the motor operation.

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