A kind of device that can wheelchair be expanded to rocking chair
Technical field
This utility model patent is a kind of fexible unit that can wheelchair be expanded to rocking chair; On the basis of common wheelchair, install and use the fexible unit that this kind can expand to wheelchair rocking chair; Can make common wheelchair have the function of rocking chair; And possess the automatic lifting function, make the convenient life of wheelchair user.
Background technology
China is as populous nation, and the situation of aging is very severe.According to The Statistics, to the year two thousand fifty, the aged of China more than 80 years old will reach 100,000,000 people, account for 1/5th of the world.China more than 60 years old aging population every year with 3% speed increase.
Calculate that according to national people with disability's sampling survey data for the second time national all kinds of people with disabilitys add up to 8,296 ten thousand people.Wherein physical disabilities have 2,412 ten thousand people, account for 29.07%; Multiple disabilities 1,352 ten thousand people account for 16.30%.
Common wheelchair is the old man of Chronic Non-Communicable Diseases more than 60 years old, the people with disability's of the elderly more than 80 years old and physical disabilities and multiple disabilities important life instrument.
How to let these wheelchair users better, more healthy, more the life of quality is arranged, be an important topic.
Summary of the invention
The purpose of this utility model is the defective that exists in the prior art in order to solve, provide a kind of can make common wheelchair under the constant prerequisite of original functions, device with rocking chair function.
In order to achieve the above object, this utility model provides a kind of device that can wheelchair be expanded to rocking chair, and this device is fixed in wheelchair seat support below, comprises spiral lifting mechanism and hyperbola rocking bar; The upper end of spiral lifting mechanism links to each other with the wheelchair seat support; The hyperbola rocking bar is located at the both sides, lower end of spiral lifting mechanism, and is fixedly linked with spiral lifting mechanism.
Further improvement to this utility model is: spiral lifting mechanism comprises lifting support, motor power, motor, shaft coupling, threaded screw rod; Electromotive power source links to each other with motor; The output shaft of motor links to each other with the threaded screw rod transmission through shaft coupling; Lifting support links to each other with threaded screw rod, and goes up and down through the rotation of threaded screw rod; Spiral lifting mechanism links to each other with the hyperbola rocking bar with wheelchair respectively through lifting support.
Above-mentioned spiral lifting mechanism also comprises gear wheel and pinion, and gear wheel is provided with hand handle; Gear wheel is meshed with pinion; Threaded screw rod links to each other with pinion.Gear wheel links to each other with shaft coupling through power transmission shaft; Threaded screw rod links to each other with the output shaft transmission of motor through pinion, gear wheel, power transmission shaft, shaft coupling successively.Two lifting structures, front support stand and bearing supporting frames about lifting support comprises; Lifting structure is a diamond structure; Threaded screw rod is two, and the two ends of each threaded screw rod link to each other with the front and rear fulcrum of corresponding lifting structure respectively; Motor power links to each other with front support stand; Pinion is two, is located at the gear wheel both sides respectively; Two threaded screw rod one ends pass bearing supporting frame and link to each other with corresponding pinion respectively, and the other end is provided with screw thread, and links to each other with front support stand.
The spiral lifting structure comprises lifting support, threaded screw rod, gear wheel and pinion; Two lifting structures, front support stand and bearing supporting frames about lifting support comprises; Lifting structure is a diamond structure; Threaded screw rod is two, and the two ends of each threaded screw rod link to each other with the front and rear fulcrum of corresponding lifting structure respectively; Gear wheel and bearing supporting frame are rotatedly connected; Gear wheel is provided with hand handle; Pinion is two, is located at the gear wheel both sides respectively, and is meshed with gear wheel; Threaded screw rod one end passes bearing supporting frame and links to each other with corresponding pinion respectively, and the other end is provided with screw thread, and links to each other with front support stand.The hyperbola rocking bar is provided with foldable mechanism.
This utility model is compared prior art and is had the following advantages: utilize the hyperbola rocking bar to realize the swing function of wheelchair; Rocking bar adopts foldable mechanism to fold simultaneously; Can the hyperbola rocking bar be folded when not required and pack up, it is free, safe, unrestricted more that wheelchair is carried out.Utilize the elevating function of spiral lifting mechanism realization wheelchair, enlarged to user and can touch height; Utilize two lifting structures simultaneously, guaranteed the balance and stability between wheelchair and the hyperbola rocking bar on the one hand, be convenient to up-down, more laborsaving, quick on the other hand; Other is provided with motor and realizes spiral lifting, and the wheelchair user only need press motor switch and just can control the ascending, descending of wheelchair and stop like this.Adopt gear train assembly during manual operation, can raise the efficiency, can reduce the moment of torsion of motor again, more laborsaving.This utility model patent has solved the function singleness property of common wheelchair on the existing market, highly non-adjustable, and the weak shortcoming of leisure effect, has very strong practicality, an operability.This utility model device is easy to use, and is simple in structure, safe and reliable, with low cost, makes user comfortable, relieved.In today of current aged tendency of population, attention people with disability rights and interests; This kind fexible unit has wide development space and market; Also be to improve the people with disability; The crowd of physical disabilities and multiple disabilities particularly, the essential instrument of the important life that the Chronic Non-Communicable Diseases patient more than 60 years old and the elderly more than 80 years old improve the quality of living.
Description of drawings
Fig. 1 can expand to wheelchair the structural representation of the device of rocking chair for this utility model;
Fig. 2 is installed on the use sketch map on the wheelchair for this utility model;
Fig. 3 is the side view of wheelchair among Fig. 2;
Fig. 4 is the structural representation of lifting structure when the decline state among Fig. 1;
Fig. 5 is the structural representation of lifting structure when propradation among Fig. 1.
Among the figure, the 1-wheelchair, 2-can expand to wheelchair the device of rocking chair, 3-hyperbola rocking bar, 4-spiral lifting mechanism; The 5-lifting support, 6-motor power, 7-motor, 8-shaft coupling, 9-threaded screw rod; The 10-gear wheel, 11-pinion, the hand handle of 12-, 13-lifting structure; The 14-front support stand, 15-bearing supporting frame, 16-foldable mechanism, 17-power transmission shaft.
The specific embodiment
Below in conjunction with accompanying drawing this utility model can be elaborated the device that wheelchair expands to rocking chair.
Referring to Fig. 2 and Fig. 3, this utility model can be fixed on the device 2 that wheelchair expands to rocking chair the seat support below of wheelchair 1 through screw bolt and nut.In conjunction with Fig. 1, this utility model device comprises spiral lifting mechanism 4 and hyperbola rocking bar 3.The upper end of spiral lifting mechanism 4 links to each other with the seat support of wheelchair 1, and lower end and hyperbola rocking bar 3 are fixedly linked.Hyperbola rocking bar 3 is located at the left and right sides of spiral lifting mechanism 4.Hyperbola rocking bar 3 is provided with foldable mechanism 16, and this foldable mechanism 16 is a hinge.Hyperbola rocking bar 3 comprises a plurality of bows, links to each other through foldable mechanism 16 between the bow.
Spiral lifting mechanism 4 comprises lifting support 5, motor power 6, motor 7, shaft coupling 8, threaded screw rod 9, gear wheel 10 and pinion 11.Two lifting structures 13, front support stand 14 and bearing supporting frames 15 about lifting support 5 comprises.In conjunction with Fig. 4 and Fig. 5, lifting structure 13 is a diamond structure, and diamond structure can rotate change rhombus angle through each fulcrum.Threaded screw rod 9 is two, and two ends link to each other with the front and rear fulcrum of corresponding lifting structure 13 respectively.Motor power 6 is fixedly mounted on the front support stand 14, and links to each other with motor 7.Motor 7 links to each other with power transmission shaft 17 1 ends through shaft coupling 8, and power transmission shaft 17 other ends link to each other with gear wheel 10 through bearing supporting frame 15.Gear wheel 10 is provided with hand handle 12, and pinion 11 is two, is located at the both sides of gear wheel 10, and is meshed with gear wheel 10.Each lifting structure 13 corresponding threaded screw rod 9 one end passes bearing supporting frame 15 and links to each other with corresponding pinion 11 respectively, and the other end is provided with screw thread, and links to each other with front support stand 14.
During use, open motor power 6,, drive shaft coupling 8 successively and rotate with drive link 17 through just commentaries on classics, the counter-rotating of motor 7.Rotate through drive link 17, drive gear wheel 10 and rotate; Or, drive gear wheel 10 and rotate through manually rotating hand handle 12.Drive the rotation (module of big pinion is identical) of two pinions 11 through gear wheel 10 rotation, and the rotating speed of pinion 11 is several times of gear wheel 10, occurrence is relevant with the gear ratio of pinion greatly.Pinion 11 rotates the rotation that drives threaded screw rod 9, thereby realizes the up-down of spiral lifting mechanism 4.
In the lifting process, it is constant that threaded screw rod 9 and power transmission shaft 17 remain the sustained height difference, with one lifting of same speed.In conjunction with Fig. 4 and Fig. 5, threaded screw rod 9 has two junction points with the diamond structure of lifting structure 13.Junction point of left end (end that threaded screw rod 9 links to each other with front support stand 14) is equivalent to nut; The female thread of locating through external screw thread on the threaded screw rod 9 and junction point (being the fulcrum of lifting structure 13) links to each other; When the rotation of pinion 11 drives threaded screw rod 9 rotations; This end junction point side-to-side movement thereupon, and realize that the angle of diamond structure changes, thus realize.Junction point of right-hand member is being rotationally connected of threaded screw rod 9 and lifting structure 13, and this connection can make threaded screw rod 9 freely rotate, and guarantees the invariant position of junction point at the length direction of threaded screw rod 9 simultaneously.When threaded screw rod 9 rotates, left end junction point meeting side-to-side movement, the junction point of right-hand member keeps original link position, but threaded screw rod 9 can rotate freely.Rotate the rhombus angle that changes lifting structures 13 through threaded screw rod 9 and change, just can realize that elevating movement controlled.
When the hyperbola rocking bar 3 that is connected lifting structure 13 lower ends drops to the four wheels that is lower than common wheelchair; Wheelchair is converted into rocking chair; Can realize the leisure swing function of rocking chair, the wheelchair user is loosened and leisure fully, help physical and mental health more.When directly using as wheelchair, hyperbola rocking bar 3 rises, and fold through foldable mechanism 16 and packs up, and can make implementation wheelchair person free, safe, unrestricted more.