A kind of damped wheelchair
The present invention relates to the field of medical instrument technology, specially a kind of damped wheelchair.
Currently, with the continuous improvement of living standards, the service life of people is increasingly longer, people pursue the life of high-quality.
Especially disabled person, patient and elderly and infirm outer activity indoors, they need using wheelchair, and most of people uses
Wheelchair be only lean on its own motive force either people from back motive force as power mobile.Though but such wheelchair
The trip comfort problem for so solving the trip of disabled person, not being fully solved patient and elderly and infirm, so designing one kind
Wheelchair with shock-absorbing function, which can be effectively solved when wheelchair encounters uneven road surface or poor surface conditions, there are the feelings jolted
Publication No. CN108078698A provides a kind of walking-aided wheelchair buffer damping mechanism, including bottom plate, bottom plate it is upper
Surface is equipped with cushion, and the front and rear sides of plate upper surface are equipped with side plate, are equipped with backboard, the right side of backboard on the left of the upper surface of bottom plate
Side is equipped with back cushion, and the right side of bottom plate and the top of connecting rod connect, and the bottom end of connecting rod is connect with pedal, the bottom left of bottom plate
It is connect with the top of the second damper, the bottom end of the second damper is connect with fixed plate, and the outside of the second damper is equipped with second
Damping spring, the bottom surface of fixed plate are equipped with shaft, and shaft is equipped with rear-wheel, and rear-wheel and shaft are rotatablely connected, this damping exists
It is provided with the first damping spring at universal wheel, the second damping spring is provided at rear-wheel, since universal wheel directly subtracts with first
Spring connection is shaken, so universal wheel is easy to appear swing when encountering rough road surface, and then can not be subtracted well
Shake and this damping carry out damping only in wheel portion, can not carry out damping on chair top.
Summary of the invention
The purpose of the present invention is to provide a kind of damped wheelchairs, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of damped wheelchair, including wheelchair frame, seat, scissors damping, rear-wheel, front-wheel damping, side plate, wheel carrier
With damping spring I, the two sides of wheelchair frame are arranged in two pieces of side plate opposition, and it is living that a pair of rear-wheel passes through two wheel carriers respectively
It is dynamic to be mounted in two blocks of side plates, damping spring I is equipped between wheel carrier and side plate, wherein：
The seat movement is mounted on wheelchair frame, sets that there are two the scissors dampings on the downside of seat, described in two
Front-wheel damping opposition is mounted on wheelchair frame, and front-wheel damping includes universal wheel, linking arm I, sleeve, damper, bottom
Seat, slider I, linking arm II and damping spring II, the universal wheel are rotatably installed on sleeve by linking arm I, the sleeve
It is movably arranged in the support shaft of wheelchair frame bottom, described damper one end is mounted on wheelchair frame by pin shaft, the other end is logical
It crosses pin shaft to be mounted on linking arm I, the pedestal is fixedly mounted on the bottom of wheelchair frame, and the slider I is movably arranged on pedestal
It is interior, it is equipped with a damping spring II between slider I and pedestal, is connected between the sleeve and slider I by linking arm II.
Preferably, one end of the linking arm I is welded on universal wheel, the other end is mounted on sleeve by pin shaft, institute
The one end for stating linking arm II is mounted on sleeve by pin shaft, the other end is mounted in slider I by pin shaft.
Preferably, the scissors damping includes bracket, sliding block II, reset spring and connecting rod, two brackets pair
Vertical to place, one of bracket is fixedly mounted on wheelchair frame, another is fixedly mounted on seat bottom, activity installation in bracket
Two sliding blocks II are respectively equipped with a reset spring, pass through pin shaft in the middle part of two connecting rods between sliding block II and bracket
Interconnection, the sliding block II in bracket that the both ends of connecting rod are placed with opposition respectively are rotatablely connected.
Preferably, two wheel carriers are movably arranged on respectively in two blocks of side plates, the upper and lower end face of the wheel carrier and side plate
Between be respectively equipped with a damping spring I, the shaft on the rear-wheel run through two wheel carriers.
Compared with prior art, the beneficial effects of the invention are as follows：
1. the present invention carries out damping by the way that a pair of of scissors damping is arranged in under-seat, using the side of Multistage damping
Formula come achieve the purpose that enhance damping effect.
2. the present invention vibration from wheel is weakened by front-wheel damping, and front-wheel traveling mistake
When encountering rough road surface in journey, front-wheel can inwardly be collapsible into row buffering, and then reduce impact, and encounter height
The contraction of front-wheel is conducive to the traveling of wheelchair when lower ladder.
Detailed description of the invention
Fig. 1 is overall structure schematic three dimensional views of the present invention；
Fig. 2 is front-wheel damping part body schematic diagram of the present invention；
Fig. 3 is scissors damping schematic three dimensional views of the present invention；
Fig. 4 is the portion A enlarged drawing in Fig. 1.
In figure：1 wheelchair frame, 2 seats, 3 scissors dampings, 4 rear-wheels, 5 front-wheel dampings, 6 side plates, 7 wheel carriers, 8 subtract
Shake spring I, 11 support shafts, 31 brackets, 32 sliding blocks II, 33 reset springs, 34 connecting rods, 51 universal wheels, 52 linking arms I, 53 sleeves,
54 dampers, 55 pedestals, 56 slider Is, 57 linking arms II, 58 damping springs II.
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1 to FIG. 4,：
A kind of damped wheelchair, including wheelchair frame 1, seat 2, scissors damping 3, rear-wheel 4, front-wheel damping 5, side plate
6, wheel carrier 7 and damping spring I 8, wherein：
Two sides of seat 2 are respectively fitting on the side handle of wheelchair frame 1, and then shape between seat 2 and wheelchair frame 1
At prismatic pair, the downside of seat 2 is set there are two scissors damping 3, and wherein scissors damping 3 includes bracket 31, sliding block II
32, reset spring 33 and connecting rod 34, two opposition of bracket 31 are placed, and one of bracket 31 is mounted by means of bolts on wheelchair
On frame 1, another be mounted by means of bolts on the bottom of seat 2, two sliding blocks II 32 of activity installation, sliding block II in bracket 31
A reset spring 33 is respectively equipped between 32 and bracket 31, wherein the both ends of reset spring 33 respectively with sliding block II 32 and bracket
31 are fixedly connected, the bracket that the middle part of two connecting rods 34 is placed with opposition respectively by pin shaft interconnection, the both ends of connecting rod 34
Sliding block II 32 in 31 is rotatablely connected, and then when two connecting rods 34 are rotated along the pin shaft at middle part will drive sliding block II 32 along branch
Frame 31 moves；Two front-wheel dampings 5 opposition is mounted on wheelchair frame 1, wherein front-wheel damping 5 include universal wheel 51,
Linking arm I 52, sleeve 53, damper 54, pedestal 55, slider I 56, linking arm II 57 and damping spring II 58, linking arm I 52
One end is welded on universal wheel 51, the other end is mounted on sleeve 53 by pin shaft, wherein between universal wheel 51 and linking arm I 52
Angle fix and the bottom surface line of universal wheel 51 is parallel with wheelchair frame 1 always, sleeve 53 is movably arranged on 1 bottom of wheelchair frame
In support shaft 11,54 one end of damper is mounted on wheelchair frame 1 by pin shaft, the other end by pin shaft is mounted on linking arm I 52
On, and then the both ends of damper 54 are respectively formed hingedly, pedestal 55 is mounted by means of bolts on the bottom of wheelchair frame 1, slider I 56
It is movably arranged in pedestal 55, a damping spring II 58 is equipped between slider I 56 and pedestal 55, wherein the two of damping spring II 58
End is fixedly connected with slider I 56 and pedestal 55 respectively, and one end of linking arm II 57 is mounted on sleeve 53 by pin shaft, is another
End is mounted in slider I 56 by pin shaft, and then the both ends of linking arm II 57 are respectively formed hingedly；
Two blocks of side plates 6, which oppose, is arranged in the two sides of wheelchair frame 1, and latus inframedium 6 is mounted by means of bolts on wheelchair frame 1
On, two wheel carriers 7 are movably arranged on respectively in two blocks of side plates 6, are respectively equipped with one between the upper and lower end face and side plate 6 of wheel carrier 7 and are subtracted
Spring I 8 is shaken, is wherein fixedly connected between damping spring I 8 and wheel carrier 7 and side plate 6, the shaft on rear-wheel 4 runs through two wheel carriers
7, wherein the shaft on rear-wheel 4 penetrates through the part of wheel carrier 7 as interference fit, and then rear-wheel 4 is fixedly mounted on wheel carrier 7.
The operation principle of the present invention is that：In bumpy sections, rear-wheel 4 is moved up and down when driving, and then drives wheel carrier 7 along side
Plate 6 moves up and down, and rear-wheel 4 realizes damping effect, and scissors during jolting under the buffer function of damping spring I 8
Intersect the angle change between the connecting rod 34 of installation in damping 3, and then sliding block II 32 is moved along bracket 31, resets bullet
The effect of buffering is realized under the action of spring 33, and then realizes the effect of damping below seat 2, and universal wheel during jolting
51 are able to carry out the swing of front and back, and part of impact force is transferred in damper 54 by linking arm I 52 during swing,
And then 54 pairs of vibrations of damper buffer, another part impact is transferred on sleeve 53 by linking arm I 52, at this time 53 edge of sleeve
Support shaft 11 move up and down, and then drive linking arm II 57 move, at this time linking arm II 57 push slider I 56 along pedestal 55
It moves back and forth, carries out damping under the action of damping spring II 58 buffers.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.