CN201022799Y

CN201022799Y - Wheelchair with body-building function

Info

Publication number: CN201022799Y
Application number: CNU2006200972358U
Authority: CN
Inventors: 赵建林; 邱凯
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-06-15
Filing date: 2006-06-15
Publication date: 2008-02-20
Anticipated expiration: 2016-06-15

Abstract

The utility model relates to a wheel chair with the function of body-building, which comprises a chair (1), a frame (2), wheels and a driving mechanism, wherein the driving mechanism is provided with a swinging crank (5) and a rotating shaft (7), the swinging crank (5) comprises two cranks, the inner end of the swinging crank (5) is movably connected and the outer end is respectively movably connected with the two handrail rods (3-3) of the frame, the crank body of the swinging crank (5) is provided inside with a pedal (6) fixedly connected with the crank body, the pedal is rotationally connected with the handrail rods by a pedal shaft (11), the rotating shaft comprises two connecting rods, the inner end of the rotating shaft is movably connected and the outer end is respectively connected with the inner ends of two back wheel shafts by bolts, the outer ends of the two back wheel shafts are respectively connected with a back wheel (2) by bearings (8), and the cranks (5-2) and the back wheel shafts (28) are respectively provided with a chain wheel connected with a chain (9). The utility model is convenient to use, safe, comfortable, able to build bodies, foldable and easy to convey and store.

Description

Wheelchair with body-building function

Technical field

This utility model relates to a kind of wheelchair with body-building function.

Background technology

Existing wheelchair, because of being subjected to the restriction of its structure, its major function is exactly the chair that can conveniently walk, need during use with the hands to drive could walk and two-wheel is braked and could be braked, and pedal also be fix immotile.Ache in the shank, waist and the back that cause when but user has only a hands to exert oneself to want to go about or because of long-time sitting wheelchair and when swelling, existing wheelchair just can not solve these major issues.

Summary of the invention

Technical problem to be solved in the utility model is: on the basis of existing wheelchair, provide a kind of modified model wheelchair with multiple function that comprises body-building function, to satisfy the convenient comfortable requirement of user needs.

The technical scheme that its technical problem that solves this utility model adopts is: comprise vehicle frame and the seat, wheel and the driving mechanism that are contained on this vehicle frame, seat is made up of backrest and seat surface.Driving mechanism is provided with folding swing bent axle and turning cylinder.The swing bent axle is made up of two joint bent axles, its inner termination flexibly connects, its external end head flexibly connects with two bars of vehicle frame respectively by bearing, and its axis body respectively is equipped with a fixedly connected with it pedal, and pedal is rotationally connected by pedal axle and bar.Turning cylinder is made up of two joint connecting rods, and its inner termination flexibly connects, and its external end head is connected with the inner termination of two rear vehicle shafts respectively by bolt, and each is connected with a rear wheel external end head of two rear vehicle shafts by bearing.One of them bent axle and rear vehicle shaft are equipped with a minor sprocket, hinge wheel respectively, and two sprocket wheels link to each other with chain.

This utility model is novel, is a kind of folding multifunctional manual wheelchair of being made up of simple mechanical system, therefore, compared with prior art has following major advantage:

One be to use convenient: having broken through common wheelchair needs with the hands to drive and could walk and limitation that the two-wheel braking could be braked, and user only need and be braked and just can finish with the one hand driving.

The 2nd, ride comfort: can allow user be sitting on the wheelchair and move on foot, thereby break away from the puzzlement of aching because of shank, waist and back that the sitting wheelchair causes as the normal person.

The 3rd, convenient in carrying: owing to forward swing dynamic crankshaft, back rotating shaft can fold, cause this wheelchair also can fold, dwindled volume, thereby be convenient to carry and deposit.

Description of drawings

Fig. 1 is an axonometric chart of the present utility model.

Fig. 2 is the axonometric chart after Fig. 1 removes seat 1 parts.

Fig. 3 is a structural representation of swinging bent axle 5 and relevant parts thereof among Fig. 1, and it is with respect to the view of Fig. 1 Rotate 180 degree.

Fig. 4 is the structural representation of turning cylinder 7 and relevant parts thereof among Fig. 1.

The specific embodiment

The utility model will be further described below in conjunction with accompanying drawing.

Structure of the present utility model comprises vehicle frame 3 and the seat 1, front vehicle wheel 4, rear wheel 2 and the driving mechanism that are contained on this vehicle frame as shown in Figures 1 to 4, and wherein: driving mechanism is provided with folding swing bent axle 5 and turning cylinder 7; The swing bent axle is made up of two joint bent axle 5-1,5-2, its inner termination flexibly connects, its external end head flexibly connects with two bar 3-3 of vehicle frame respectively by bearing, and its axis body respectively is equipped with a fixedly connected with it pedal 6, and pedal is rotationally connected with bar 3-3 by pedal axle 11; Turning cylinder is made up of two joint connecting rod 7-1,7-2, and its inner termination flexibly connects, and its external end head is connected with the inner termination of two

rear vehicle shafts

21,28 respectively by bolt, and the external end head of two rear vehicle shafts respectively is connected with a rear wheel 2 by bearing 8; Bent axle 5-2, rear vehicle shaft 28 are equipped with a minor sprocket 26 respectively, hinge wheel 20, two sprocket wheels link to each other with chain 9.Seat 1 is made up of backrest and seat surface.Sequence number 3-1,3-2 are respectively handle, bottom bar.

The structure of above-mentioned bent axle 5-1,5-2 is as shown in Figure 3: respectively have one on its axis body towards opposite " U " type counterweight pendulum mass 14.The counterweight pendulum mass is made up of the axle 16 of two side plates and flexible connection with it.The inner termination of bent axle 5-1 is flat plug 12; The inner termination of bent axle 5-2 is a prong 13, and plug links to each other the two by bolt 15 after stretching into prong, is hinged state.

As shown in Figure 3: above-mentioned pedal 6, the end welding of its top and pedal axle 11, the other end of pedal axle 11 has installing hole 10, and this installing hole and the bar 3-3 body of rod interlock; The one end welding of its middle part and connector bar 18, the other end of this connecting rod is welded with fixedly semicircle clamp 17, this clamp and movable semicircle clamp 19 form whole cylindrical cavity, this cavity is encircled on the axis body of axle 16, and link to each other by bolt, link to each other thereby make pedal 6 be swing with swing bent axle 5.

As shown in Figure 4: in the turning cylinder 7, the two ends of its connecting rod 7-1 are respectively notch 23, flat termination 24; The two ends of its connecting rod 7-2 are notch 23.Therefore, by bolt 27, notch 23, the flat termination 24 of connecting rod 7-1 are linked to each other with the flat termination 22 of rear vehicle shaft 21, an end slot mouth 23 cooperations of connecting rod 7-2 respectively, the other end notch 23 of connecting rod 7-2 is linked to each other with flat termination 25 cooperations of rear vehicle shaft 28, form whole turning cylinder 7, simultaneously, make two joint connecting rods form hinged state, and be convenient to fold in the junction at middle part.

Two bearings 8 are unilateral bearing, itself and two rear vehicle shafts constitute singlehanded arrestment mechanism, cooperate by interference fit and keyway and realize.

Sketch the work process of this wheelchair below in conjunction with accompanying drawing:

1. drive: can singlehandedly drive, the left back wheel of singlehanded driving, then right rear wheel is synchronized with the movement by turning cylinder 7 and left back wheel, and wheelchair moves ahead.Also but both hands drive, and both hands drive same prior art.

2. braking: can singlehanded brake, brake left back wheel by brake block (not drawing on the figure), make unilateral bearing 8 stuck in left back wheel axle sleeve, the left end of rear vehicle shaft is stuck in the inner ring of unilateral bearing by interference fit, the right-hand member of rear vehicle shaft adopts keyway to cooperate with right wheel and fixes, so also be braked, stop and braking state so wheelchair is in.

3. body-building: when this wheelchair was walked, rear wheel 2 drove turning cylinder 7 rotations, and the minor sprocket 26 that moves with turning cylinder 7 drives hinge wheels 20 motions by chain 9, made and swung bent axle 5 rotations, and then bipod is with crisscross motion up and down before and after the pedal, and row together on foot.

4. folding: this wheelchair can fold, the same prior art of its folding process.

Claims

1. wheelchair with body-building function comprises vehicle frame (3) and is contained in seat (1), wheel and driving mechanism on this vehicle frame that seat (1) is made up of backrest and seat surface.It is characterized in that: driving mechanism is provided with folding swing bent axle (5) and turning cylinder (7); The swing bent axle is by two joint bent axle (5-1,5-2) form, its inner termination flexibly connects, its external end head flexibly connects with two bars (3-3) of vehicle frame respectively by bearing, its axis body respectively is equipped with a fixedly connected with it pedal (6), and pedal is rotationally connected by pedal axle (11) and bar (3-3); Turning cylinder is by two joint connecting rod (7-1,7-2) form, its inner termination flexibly connects, its external end head by bolt respectively with two rear vehicle shafts (21,28) inner termination connects, and each is connected with a rear wheel (2) external end head of two rear vehicle shafts by bearing (8); Bent axle (5-2), rear vehicle shaft (28) are equipped with a minor sprocket (26), hinge wheel (20) respectively, and two sprocket wheels link to each other with chain (9).

2. the wheelchair with body-building function according to claim 1 is characterized in that (5-1 5-2), respectively has one towards opposite " U " type counterweight pendulum mass (14) to described bent axle on its axis body; The counterweight pendulum mass is made up of the axle (16) of two side plates and flexible connection with it.

3. the wheelchair with body-building function according to claim 1 is characterized in that: the inner termination of bent axle (5-1) is flat plug (12), and the inner termination of bent axle (5-2) is prong (13), and plug links to each other the two by bolt (15) after stretching into prong.

4. the wheelchair with body-building function according to claim 1 is characterized in that: bearing (8) is a unilateral bearing.