CN1548020A - Wheelchair structure - Google Patents
Wheelchair structure Download PDFInfo
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- CN1548020A CN1548020A CNA031311342A CN03131134A CN1548020A CN 1548020 A CN1548020 A CN 1548020A CN A031311342 A CNA031311342 A CN A031311342A CN 03131134 A CN03131134 A CN 03131134A CN 1548020 A CN1548020 A CN 1548020A
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- seat support
- upper frame
- bar
- chair back
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Abstract
The wheelchair structure consists of seat with front and back wheels in the bottom, cushion on the seat, footrest in front, pivoted back, back cushion, and arm rests combined together. The seat is provided with pushing unit and support rack to regulate height, the pushing unit between the back and the footrest can move synchronously, the seat cushion and the back cushion are provided with transverse moving function, the back cushion can also slide longitudinally, and the inside of the seat may be hollowed for a closestool to be set in. The wheelchair is multifunctional and has increased activity range.
Description
Technical field
The present invention relates to the wheelchair structure that a kind of constant person that takes action rides instead of walk and uses, the outstanding bad mobility chair tool of taking in patients such as row, physical weakness of confession under directions.
Background technology
Traditional wheelchair is the simple delivery function of tool only, and promote so that wheelchair advances with both hands rotation trailing wheel or with other people by the patient, its unique advantage is to have the folding function that folds, because it is auxiliary not have other function, so the help for the patient is limited, then have to develop the wheelchair of other style, the domestic patent case of enumerating below for example:
1. No. 459528 " Wheelchair structure " the 11 days October calendar year 2001 day for announcing with seat lifting and translation functions, it is a kind of liftable wheelchair of seat of emphasizing, but after seat and people together upwards raise, can because of weight at the last chassis crank that causes, in case when the people is shifted, very easily cause wheelchair to topple over, need extreme care so use to go up.
2. announced No. 444590 " can face upward the Wheelchair structure of lying " date of declaration on 07 01st, 2002, be a kind ofly to emphasize all wheelchairs of adjustable angle of the chair back and sufficient platform, but the chair back and sufficient platform are indivedual adjustment, can not interlock, and be with manual enforcement, non-with electronic control.
3. No. 481001 on 03 21st, 2002 " tool is faced upward the wheelchair of the device of lying " day for announcing, also be to plant to emphasize all wheelchairs of adjustable angle of the chair back and sufficient platform, but sufficient platform is extremely short, and people's foot can not uphold, and can not adapt to all user (as: broken feet) then fully and use; And chair cushion is to be fixed on the chair back, so when chair back angle of inclination changed, chair cushion can change and produces to rub with people's back and rub along with chair back oblique angle, causes skin ulcer cotton-padded mattress or wound pain; The people is located at the device (being telescoping cylinder) of pulling of pushing away under the seat support again and can hinders cooperating of wheelchair and household toilet, so can't go to toilet on wheelchair.
4. No. 331135 on 05 01st, 1998 " being convertible into the sick bed of wheelchair use " day for announcing, what this case was emphasized is that sick bed can transfer the wheelchair use to, only the chair back of this case and sufficient platform are to adjust angle individually, can not interlock, and sick bed transferred to be that wheelchair uses, can not meet the use of ergonomics,, can not comply with for long-time seat of people so can only of short durationly implement.
5. No. 374017 " wheelchair leans on group with the seat anticline " November 11 1999 day for announcing, but what this case was emphasized is stretching and tool angle adjustment function of chair back mat telescoping cylinder, but regrettably sufficient platform does not have the oblique angle adjusts function, and and the chair back between no any continuous action relation, so can't be for people's use that lies low; When changing chair back angle of inclination again, back pad also can produce to rub and rub with people's back.
6. announce on 03 21st, 1998 " multifunctional wheelchair " day for announcing No. 328719, one of feature of this case is that the central authorities of seat cushion are provided with movably ram, so that the people also can go to toilet on wheelchair; But because of the end user is seated on the seat cushion,, and just disconnect detaching the back,, still perplex because of the end user is seated to cause on the seat cushion to assemble if put back original position again with seat cushion so that ram detaches is difficult.Another feature of this case is but that chair back mat locating support changes the angle of inclination again, but is to adopt manually in the operation, and does not have continuous action relation with sufficient platform, and sufficient platform can not adjust angle, so can't supply end user foot keep flat.
The wheelchair of habit formula mostly has following problem points, as:
1. general wheelchair is not had a seat support elevating mechanism, so the patient easily causes puzzlement will get the eminence article time; Wheelchair can't drop to and general home-use height (about 45 centimeters) as another, therefore can't allow the patient move on the wheelchair or by wheelchair and move on the bed, thereby cause nurse personnel's puzzlement; In addition, for cooperate height of table top also Chang Yinwei seat support, handrail be the high puzzlement that causes in the use than desktop, therefore in the design, the falling head of wheel seat cushion needs to reduce as much as possible, handrail needs tool turnover function, so could adapt to various desktops; Though present wheelchair has had elevating function, often be subjected to the restriction of mechanism, No. 459528 patent case of domestic as described above bulletin, when implementing to rise, two side handrails and foot supports frame but can't rise synchronously, so center of gravity is when last, easily cause the chassis unstable and wheelchair is toppled over wait unexpected generation.
2. the chair back and the sufficient platform of general wheelchair do not have synchronization control angle function, vertical can the adjustment also is with manual enforcement, domestic as described above bulletin all is like this 444590,481001, No. 331135, because non-automatic and non-interlock is implemented, move so people's back and foot are asynchronous, cause end user's center of gravity easily not produce slip in central authorities; In addition, also easily bring nurse personnel's puzzlement in the operation; The wheelchair of announcing the 444590th, No. 481001 again still has the insufficient shortcoming in angle of inclination, i.e. the chair back and sufficient platform pedal level fully, so that the level function that couches can't be provided, thus, easily increase the burden of waist down on the contrary.
3. the seat cushion central authorities of general wheelchair not tool move skidding, so the patient can't be sitting on the wheelchair and go to toilet, this makes bad patient in row must leave wheelchair and just can go to toilet, cause to use and go up inconvenience greatly, though the seat cushion of No. 328719 patent case of domestic bulletin has had drawable central skidding, in a single day after detaching, just disconnect as described above with seat cushion, this not only easily causes puzzlement in assembling, also can forget reduction, even be to cause loss because of inadvertent.
4. the back pad of general wheelchair is that secure bond is on the chair back, when so the chair back changes the angle of inclination, back pad can change and produces to rub with people's back and rub along with the angle of the chair back, this is because the chair back can produce thrust forward when being rotated forward by the state of reclining, make people's back have forward strength, cause the people to be passed forward, and the shearing parallel with the chair back cause back and the chair back produce friction (because of the chair back motionless); Similarly, when the rear-inclined, also can cause same situation to occur at the chair back, this end user that can make the back papula give birth to cotton-padded mattress feels more pain, and this is all an open question points of present wheelchair.
5. secondly, wheelchair foot platform pedal now is the flexible function of adjusting of tool not, so pedal can't drop to ground, the end user who satisfies for foot's fracture can cause puzzlement because of foot is difficult for moving to pedal; Again pedal be about two and indivedual independent the setting, if fail the synchronization lifting adjustment, also easily cause the puzzlement in the enforcement.
Moreover, the use that all can't go to toilet of most wheelchair, this is that restriction for fear of mechanism causes, and cooperates with household toilet so that wheelchair is difficult; Though the wheelchair that No. the 328719th, aforementioned bulletin can be used with toilet, but it is in conjunction with a shaped as frame seat support on the metallic chair frame of both sides, utilize the shaped as frame seat support to take for the end user, because the front and back ends of both sides chair frame all is not provided with cross bar, so though wheelchair can cooperate toilet to use, but be not enough to bear gravity load on the structure, after causing the end user of overweight to take, cause the lower knuckle distortion of both sides chair frame, satisfying the light end user of only suitable child or body weight uses, the end user who is not suitable for overweight implements, so cause regretting in the use.
Summary of the invention
The object of the present invention is to provide a kind of Wheelchair structure that cooperates toilet to use.
The Wheelchair structure that another object of the present invention is to provide a kind of seat support that makes wheelchair to have lift action.
A further object of the present invention is to provide a kind of Wheelchair structure that makes the wheelchair foot platform and the chair back have synchronous interlock effect.
Another purpose of the present invention is to provide a kind of back pad that makes wheelchair to have the Wheelchair structure of vertical shift effect on the chair back.
A further object of the present invention is to provide a kind of seat cushion central authorities of wheelchair that make can cause the Wheelchair structure of long nick in order to patient's size defecation.
For achieving the above object, the present invention adopts following design:
A kind of Wheelchair structure comprises: the seat support that can Gong take; One covers in the seat cushion of seat support end face; One is articulated in the sufficient platform of seat support front end; One is articulated in the chair back of chair base rear end; One covers the back pad on the chair back; Two are located at the handrail of seat support both sides; Reach four and be located at the beneath front and rear wheel of seat support; It is characterized in that: seat support system by upper frame, underframe and be located at upper frame and underframe between bracing frame formed; Aforementioned upper frame be about two truss, front and back two pivots form; And underframe by about two female bars, the front rail that is connected between two female bars formed; Support frame is with the side frame body of upper frame and underframe both sides secure bond.
A kind of Wheelchair structure comprises: the seat support that can Gong take; One covers in the seat cushion of seat support end face; One is articulated in the sufficient platform of seat support front end; One is articulated in the chair back of chair base rear end; One covers the back pad on the chair back; Two are located at the handrail of seat support both sides; Reach four and be located at the beneath front and rear wheel of seat support; It is characterized in that: seat support by upper frame, underframe and be located at upper frame and underframe between bracing frame formed; Aforementioned upper frame is made up of left and right two booms and forward and backward two pivots that are located between two booms, and under boom parallel sliding sash is arranged and form long rail groove; Underframe is made up of aircraft carrier bar in left and right two, the stretch sub bar in female bar and the front rail that is combined between two female bars, and the front end of this female bar is combined with front-wheel, and the rear end of sub bar is in conjunction with trailing wheel; Again, be installed with under the underframe and push away the device of pulling, this pushes away the device of pulling and has expansion link, and the end of expansion link then combines with the underframe sub bar; In addition, bracing frame is a forked link, and it is formed by first push rod, second push rod and with the pivot of two push rod cross coupled, and the bottom of this two push rod is combined in female bar front end and sub bar rear end with pivot individually, two connecting rods is intersect setting; The first push rod top and upper frame boom, sufficient platform bogie side frame are shared a pivot again, and the second push rod top then is horizontally set with in slide bar and the sliding sash rail groove of standard under the seat support upper frame; That sub bar in the female bar of underframe is also produced is flexible by being located at the actuation means on the handrail, being made the expansion link that pushes away the device of pulling, and the angle of first and second connecting rod is changed, and changes and make seat support produce lifting.
A kind of Wheelchair structure comprises: the seat support that can Gong take; One covers in the seat cushion of seat support end face; One is articulated in the sufficient platform of seat support front end; One is articulated in the chair back of chair base rear end; One covers the back pad on the chair back; Two are located at the handrail of seat support both sides; Reach four and be located at the beneath front and rear wheel of seat support; It is characterized in that: seat support by upper frame, underframe and be located at upper frame and underframe between bracing frame formed; Upper frame is made up of left and right two booms and forward and backward two pivots that are located between two booms, and under boom parallel sliding sash is arranged and form long rail groove; Underframe is made up of left and right two female bars and the front rail that is combined between two female bars, and this female bar front end is combined with front-wheel, and the rear end then is combined with trailing wheel, and underframe has sliding sash and forms long rail groove; In addition, also be provided with under the underframe and push away the device of pulling, this pushes away the device of pulling and has expansion link, and the expansion link end has slide bar; In addition, bracing frame is a forked link, it is formed by first push rod, second push rod and with the pivot of two push rod cross coupled, wherein, the first push rod top and upper frame boom, sufficient platform bogie side frame are shared a pivot, same slide bar is then shared with the expansion link that pushes away the device of pulling in the bottom, and this slide bar and standard are in the long rail groove of the sliding sash of female bar; The second push rod top then is horizontally set with in slide bar and the sliding sash rail groove of standard under the upper frame boom, and the bottom then is combined on female bar with pivot; When the expansion link that pushes away the device of pulling stretches the angle between first and second connecting rod is changed by being located at the actuation means on the handrail, being made, change and make seat support produce lifting.
A kind of Wheelchair structure comprises: the seat support that can Gong take; One covers in the seat cushion of seat support end face; One is articulated in the sufficient platform of seat support front end; One is articulated in the chair back of chair base rear end; One covers the back pad on the chair back; Two are located at the handrail of seat support both sides; Reach four and be located at the beneath front and rear wheel of seat support; It is characterized in that: be extended with pole under two side levers of the chair back, wherein a pole is connected with the end of the expansion link that pushes away the device of pulling, and the rear end system that pushes away the device of pulling is fixed under the seat support upper frame, makes that pushing away the device of pulling is the oblique angle setting; Another pole then articulates with an interlinking lever end, and connecting rod end in addition then articulates with the side lever of sufficient platform; By being located at the actuation means on the handrail, being made the device of pulling of pushing away under the seat support upper frame promote the chair back and the chair back and sufficient interstation and articulate, and reached the chair back and synchronous interlock of sufficient platform and angle adjustment with connecting rod.
A kind of Wheelchair structure comprises: the seat support that can Gong take; One covers in the seat cushion of seat support end face; One is articulated in the sufficient platform of seat support front end; One is articulated in the chair back of chair base rear end; One covers the back pad on the chair back; Two are located at the handrail of seat support both sides; Reach four and be located at the beneath front and rear wheel of seat support; It is characterized in that: on two side levers for back of the body frame vertical slide rail is set, in addition by one group of sliding sash of being made up of several cross bars and two side levers, is provided with under the side lever of sliding sash and integrating with that vertical slide rail symmetry cooperates, back pad has the straight skidding function by this group sliding sash.
A kind of Wheelchair structure comprises: the seat support that can Gong take; One covers in the seat cushion of seat support end face; One is articulated in the sufficient platform of seat support front end; One is articulated in the chair back of chair base rear end; One covers the back pad on the chair back; Two are located at the handrail of seat support both sides; Reach four and be located at the beneath front and rear wheel of seat support; It is characterized in that: the body of seat cushion is provided with groove, and notch forward, so the seat cushion body shape takes the shape of the letter U; Just can fill up ccontaining front and back two in the groove again, be respectively first skidding and second skidding, connect with hinge between two pads; The two side walls of groove is provided with slide rail in addition, and the both sides of second skidding are provided with and integrating with that the slide rail symmetry cooperates; When first skidding is pulled outwardly when moving, the second skidding meeting is together moved, and until first skidding pivot pendulum down, and second skidding moves to till the first skidding position, makes the seat cushion body center form long nick.
Can obtain following result according to enforcement of the present invention:
1. wheelchair can be adjusted adjustable height, is beneficial to user take eminence or lower article, more can be convenient near desktop, also can falling head to bed surface with high in order to translation.
2. but the chair back of wheelchair and sufficient platform synchronization control angle of inclination, and can determine suitable angle, and can reach and lie low and function such as sitting posture according to individual human needs.
3. the back pad of the chair back has the longitudinal sliding motion function, satisfies when the chair back is adjusted the angle of inclination, and back pad can together be slided along with the patient back, so can avoid dawdling and pain with the generation of patient back; When the end user transfers sitting posture to by lying, can reduce chair back thrust forward again.
4. seat cushion and back pad horizontal slippage function of tool all can make the nurse personnel easily the patient be moved to by wheelchair that bed is gone up or by moving on the wheelchair on the bed.
5. during lifting tables, its seat support is an integral elevating, and both sides have handrail or pin to stop the end user, can prevent that then the patient from turning on one's side to improve the security; Handrail or pin are all had a rotation function again, can be beneficial to seat cushion then and laterally shift out or move into.
6. two pivots before and after the upper frame of wheelchair seat support has, and underframe has the design of front rail can make to present under the seat cushion unsettledly, so that wheelchair can fall back to toilet, promptly toilet can be gone in the wheelchair, again the structural design ability heavy load of seat support and prevent that distortion from taking place.
7. have first skidding and second skidding in the medium altitude groove of seat cushion body, after two skidding remove simultaneously, first skidding can pivot the bottom naturally and not influence end user both feet and put or move, and second skidding can make body center form breach after shifting out, when wheelchair falls back to the toilet top, breach is ascended the throne directly over toilet, in order to the large and small defecation of end user.
8. the pedal of sufficient platform has Telescopic, can allow the people be transferred to when lying low by sitting posture, and foot can stretch and recumbency that can be comfortable; The mat pedal can be reduced to ground again, can horizontally move to pedal for end user's foot, praises to avoid foot.
9. the front and back ends of seat support upper frame has horizontal hinged arm, and the front end of underframe has cross bar, so seat support is following assisting of three horizontal bodies of rod, not only can make wheelchair cooperate toilet to implement, more can support big gravity, cause the structural bending distortion and avoid being subjected to gravity effect.
10. aforementioned every device is not to terminate in indivedual enforcements, it can be to merge or the overall co-ordination use, as: the chair back and sufficient platform mat interlinked mechanism and having lies low and sits function for sleeping in, but and mat back pad straight skidding and make the patient back avoid dawdling in the moving process, utilize elevating function to make height contour after lying low again again with bed surface, in order to carrying out horizontal slippage, and when traversing with the sliding function of seat cushion and back pad and reach, in operating process, properly use each mechanism so that the patient obtains the most appropriate in addition, careful treatment can be avoided patient's two degree injuries then and alleviate medical care or nurse personnel's hard work.
Following according to detailed description of the embodiment shown in the drawing as back:
Description of drawings
Fig. 1: the stereo appearance figure of Wheelchair structure of the present invention.
Fig. 2: the three-dimensional exploded view of Wheelchair structure of the present invention.
Fig. 3: the seat support three-dimensional structure diagram of wheelchair of the present invention.
Fig. 4: seat support upper frame rising sketch map of the present invention.
Fig. 5: seat support upper frame decline sketch map of the present invention.
Fig. 6: the sufficient platform of wheelchair of the present invention and chair back annexation sketch map.
Fig. 7: the sufficient platform of wheelchair of the present invention and the chair back topple over sketch map.
Fig. 8: the sufficient platform of wheelchair of the present invention and the chair back hold up sketch map.
Fig. 9: wheelchair of the present invention is the complete level stereo appearance figure of lying that inclines.
Figure 10: handrail spinning movement sketch map of the present invention.
Figure 11: the lie low sketch map that separates of wheelchair and back pad, seat cushion of the present invention.
Figure 12: be the chair back of the wheelchair sketch map during hypsokinesis not.
Figure 13: the sketch map when practising the chair back hypsokinesis of formula wheelchair.
Figure 14: the sketch map during for the chair back hypsokinesis of wheelchair of the present invention.
Figure 15: other plants the sketch map that separates of wheelchair chair cushion and back pad the present invention.
Figure 16: the present invention takes turns the three-dimensional exploded view of the chair back and back pad.
Figure 17: the three-dimensional exploded view of seat cushion of the present invention and central skidding.
Figure 18: the sketch map that wheelchair of the present invention cooperates with toilet.
Figure 19: the action sketch map of seat cushion of the present invention and central skidding.
Figure 20: the present invention's second aspect side view.
Figure 21: the sufficient platform structure chart of elicit illness state sample of the present invention.
The specific embodiment
As shown in Figure 1 and Figure 2, be respectively the stereo appearance figure of Wheelchair structure of the present invention and exploded view partly, disclose wheelchair 10 structures among the figure and comprise: the seat cushion 2, that the seat support that can Gong take 1, is covered in seat support 1 end face is located at sufficient platform 3, before the seat support 1 and is located at the back pad 5, that the chair back 4, behind the seat support 1 is covered on the chair back 4 and is located at the handrail 6 of seat support 1 both sides and is located at the beneath front and back wheel 14,15 of seat support.
Aforementioned, an actuation means 8 is set the side of handrail 6 so that patient's one-handed performance and take off the action of stating below the control: as wheelchair 10 move forward and backward and about the synchronous interlock and the angle adjustment of turnings, the lifting of seat support 1, sufficient platform 3 and the chair back 4; Its power supply then comes from the one group electric power supply system 7 of position in seat support 1 front lower place, and this system is chargeable accumulator structure; Single Electric Motor Wheel 9 is set under seat support 1 in addition, and it passes through the driving of reduction gear box 92 and two umbrella teeth 93,94 etc. with motor 91, and makes Electric Motor Wheel 9 produce actions such as advancing, retreat, turn or stop, and the patient can indiscriminately ad. as one wishes be driven; Because structure and operating principle that wheelchair drives have been the known skill of habit formula, non-feature of the present invention is in this only statement slightly, not explanation in detail.
Fig. 2, shown in Figure 3 for another example, the seat support three-dimensional structure diagram of this Fig. 3 wheelchair, its disclose seat support 1 substantially by upper frame 11, underframe 12 and be incorporated into upper frame and underframe between bracing frame 13 (forked link) formed.Wherein, upper frame 11 by about two booms 111,112,113 on front and back two pivots form, can set up several cross bars 115 (disclosing three among the figure) in addition and as reinforcement, be connected with parallel sliding sash 114 again under boom 111,114 of boom 111 and sliding sashes form long rail groove.Again, underframe 12 by about aircraft carrier bar 121 in two, stretch in two female bars sub bar 122 and be combined in about front rail 123 between two female bars formed, two female bar 121 front ends in conjunction with front-wheel 14, two sub bars 122 rear ends then in conjunction with trailing wheel 15; 122 of aforementioned two sub bars can not connect with cross bar (disclosing) yet, and this cross bar only is not set in this case, in case reason is to be provided with this cross bar, wheelchair 10 are matched with toilet, and in other words, toilet promptly can't move in the seat support 1 of wheelchair 10; Owing to there is not this cross bar,, make wheelchair 1 to fall back and go in the seat support 1 that this can be disclosed by Figure 18 and obtain to understand for toilet so present unsettledly in the seat support 1; Secondly, two pivots 112,113 and underframe 12 are under the consolidation of front rail 123 in front and back for upper frame 11, and not only structure is firm, prevents distortion, also more can bear heavy load.In addition, two groups of bracing frames 13 are the both sides that are combined in upper frame 11 and underframe 12, and its structure does not have certain restriction, as long as can make up with upper frame 11 and underframe 12.
Yet in order to make upper frame 11 can have elevating function, 13 of following bracing frames replace with forked link, it is by first push rod 131, second the push rod 132 and pivot 133 of two push rod cross coupled formed, the bottom of this two push rod is individually with pivot 134,135 are combined in female bar 121 front ends and sub bar 122 rear ends, make two connecting rods be intersection setting, first push rod, 131 tops and upper frame boom 111 again, foot platform bogie side frame 31 is shared same pivot 112, and in the sliding sash 114 rail grooves of slide bar 136 standards that second push rod, 131 tops are horizontally set with under upper frame boom 111, this slide bar 136 can be had a phorogenesis in the rail groove, for the benefit of roll again can be with slide bar 136 in conjunction with roller 137 enforcements.In addition, under underframe 12 left and right sides, set firmly the two equidirectional devices 16 of pulling that push away, this pushes away the device 16 of pulling is to drive worm screw (being expansion link 162) by worm gear (not disclosing) again after being slowed down via train of reduction gears (not disclosing) by fractional motor 161 to produce telescopic action, this device is known structure, non-pattern characteristics, and should also can replace enforcement by structure, be not limited to the structure that drawing discloses so push away the device 16 of pulling by the cooperation of pneumatic cylinder or wheel and rack; The end of aforementioned expansion link 162 needs combine with underframe sub bar 122 (fixing with pivot 164 in the drawing), therefore for the ease of disposing, and can be by contiguous block 163 in conjunction with expansion link 162, sub bar 122 and first push rod 131 totally three bars.Just can drive the advance and retreat of underframe sub bar 122 synchronously by expansion link 162 telescopic movings that push away the device 16 of pulling, make two push rods 131,132 of bracing frame 13 produce variable angle, and then by pivot 112, slide bar 136 common lifting upper frames 11 to change adjustable height, this can be understood by following Fig. 4, acquisition shown in Figure 5.
As shown in Figure 4, be seat support upper frame 11 rising sketch maps, when the expansion link 162 that pushes away the device 16 of pulling inwardly shrinks, underframe sub bar 122 can be moved inwardly, this moment first push rod 131 influenced by sub bar 122 interlocks and and 132 of second push rods produce variable angle, promptly the angle theta 1 of 131,132 of two push rods can be dwindled gradually, but the height H 1 of forked link 13 increases on the contrary gradually; Again, because second push rod, 132 vertical slide bars 136 are that standard is in the rail groove of upper frame sliding sash 114, so will force upper frame 11 steadily to rise jointly with pivot 112 and slide bar 136 in first and second push rod 131,132 interlocks, relatively, the height of seat 1 promptly increases.
Otherwise, as shown in Figure 5, be seat support upper frame 11 decline sketch maps, when the expansion link 162 that pushes away the device 16 of pulling is protruding, underframe sub bar 122 outwards can be moved, this moment first push rod 131 influenced by sub bar 122 interlocks and and 132 of second push rods produce angle and change, this angle theta 2 increases gradually, but the height H 2 of bracing frame 13 is dwindled on the contrary; Again, will order about upper frame 11 jointly with pivot 112, slide bar 136 and steadily descend in the time of two push rods, 131,132 interlocks, relatively, the height of seat 1 promptly reduces.By the elevating function of seat support upper frame 11, just can be convenient to the patient and be sitting in and just can take the position on the wheelchair 10 aloft or the article of lower, also can cooperate height of table top and suitably adjust, more can be convenient to patient's level between wheelchair and sick bed and move.
As shown in Figure 6, be the interlinked mechanism figure of sufficient platform 3 with the chair back 4, disclose among the figure sufficient platform 3 by about two side levers 31, connect two side levers cross tube 32, be located at two sub bars 35 in the side lever, the sheer pole 36, two that connect two sub bars is used for fixing the bolt 37 of sub bar and the two pedal 33 that is located under the sub bar is formed, 31 of two side levers foot can be set in addition and fill up 34 and contact in order to foot; In aforementioned, the top of two side levers 31 is to share same pivot 112 with upper frame boom 111, first push rod 131 (not disclosing); The lower end of two side levers 31 is provided with and is screwed in sub bar 35 after slotted hole 311 penetrates for bolt 37 again again, it is fixing that side lever 31 is combined with sub bar 35, again after bolt 37 pines change, the adjustable height of energy synchronization control Shuangzi bar 35, treat to fix with bolt 37 again behind the Decision Height, can make pedal 33 drop to ground in view of the above, tensible foot in the time of more being beneficial to the patient and changing lying posture into by sitting posture in order to outside the translation of patient foot.
Secondly, the chair back 4 by about two side levers 41, several cross bars 43 form, and highly locating suitably that in two side levers 41 handle 46 is set passes in order to the nursing staff, share a pivot 113 at the bottom and the upper frame boom 111 of two side levers 41 in addition, respectively extend a pole 42 under two side levers 41, this pole 42 can be considered as the extension rod of side lever 41; Wherein a pole 42 (being positioned at the last person of drawing) is connected with expansion link 171 ends that push away the device 17 of pulling, and the rear end system that pushes away the device 17 of pulling is fixed on upper frame 11 times (it is for 111 times good being located at boom), this pushes away the device 17 of pulling with aforementioned to push away the structure of pulling 16 identical, and can be replaced by the tracker action of other same function and implement; In addition, another pole 42 (being positioned at drawing person down) then articulates with a connecting rod 18, and the end in addition of this connecting rod 18 then articulates with sufficient platform side lever 31, and can set up pole 32 to be connected with connecting rod 18 on side lever 31 for the ease of producing interlock; Because pushing away the device 17 of pulling is to be the oblique angle setting, produce tilting actions so when expansion link 171 stretches, can drive the chair back 4, the chair back 4 drives sufficient platform 3 more synchronously and produces tilting action with connecting rod 18 again, so sufficient platform 3 is that synchronous interlock carries out angle adjustment with the chair back 4, and the process of interlock can be by following Fig. 7, shown in Figure 8ly know.
As shown in Figure 7, for become the process of chaise longue state with the chair back 4 interlocks about sufficient platform 3, become to articulate relation by aforementioned known upper frame 11, sufficient platform 3, the chair back 4 threes, therefore can affect the chair back 4 to make it when pushing away expansion link 171 contractions of holding up device 17 is axle center and backward toppling over pivot 113, again the chair back 4 again mat connecting rod 18 drive sufficient platform 3 synchronously, making it is that the axle center raises up with pivot 112, till sufficient platform 3, the chair back 4 are the level of state with upper frame 11, cut off to push away by safety switch (disclose, as limit switch) at last and hold up device 17 power supplys and can stop action.
Otherwise, as shown in Figure 8, can to affect the chair back 4 to make it when the expansion link 171 of holding up device 17 stretches be axle center and raising up forward with pivot 113 when pushing away, again the chair back 4 again mat connecting rod 18 drive sufficient platform 3 synchronously, making it is that the axle center descends with pivot 112, till sufficient platform 3, the chair back 4 are erected into vertical seat state fully, cut off to push away by safety switch (disclose) at last and hold up device 17 power supplys and can stop action.Hence one can see that, and the patient can make sufficient platform 3, the chair back 4 be adjusted to suitable angle according to the needs of oneself by actuation means 8.
As shown in Figure 9, for sufficient platform 3 and the chair back 4 interlocks become the sketch map of chaise longue state, these can be for patient lie low use and pedal 33 scalable adjusting length.Secondly, be provided with handrail 6 in seat support 1 both sides, this two handrail 6 is fixed on the side of upper frame boom 111, fixed mode as shown in figure 10, for the side of boom 111 is being fixed pedestal 60, and fixing wherein 62a on one side of hinge on the pedestal 60, in addition limit 62b then with handrail 6 secure bond, be provided with pilot pin 61 at the bottom bar of handrail 6, these pilot pin 61 strings are being established spring 63, satisfy when handrail 6 settings, pilot pin 61 is subjected to the multiple Zhang Zuoyong of spring 63 and inserts and reach locating effect in the locating hole 601 of pedestal 60; Otherwise, after pilot pin 61 is pulled upwardly, can break away from locating hole 601, and make the handrail 6 can be towards 180 ° of sideway swivels, because the structure and the operating principle of handrail 6 are the known skill of habit formula, and non-feature of the present invention, only satisfy statement slightly.
As shown in figure 11, be the wheelchair 10 of lying status and the exploded view of seat cushion 2, back pad 5, wherein, all be provided with slide rail 19 on three cross bars 115 of the upper frame 11 of seat support 1, and be provided with three 21 (or other slide assemblies) that integrate with slide rail 19 relative engagement in the bottom surface of seat cushion 2; Down swing after handrail 6 is removed positioning relations, at this moment seat cushion 2 is can level traversing outward, and in other words, after handrail 6 no longer stopped seat cushion 2, seat cushion 2 just can be 21 traversing with cooperating of slide rail 19 with integrating with; After shifting out, insert in the locating hole 25 of seat cushion 2 base plates by the pilot pin 61 (as Figure 12) of aforementioned handrail 6 again and reach the location; In addition, elasticity pilot pin (not disclosing) also can be set with seat cushion 2 location under truss 111.
Secondly, on the cross bar 43 of the chair back 4, be provided with slide rail 44, and be provided with in the bottom surface of back pad 5 with slide rail 44 relative engagement integrate with 51.In addition, more elasticity pilot pin 45 is set at side lever 41 or the side that pushes away frame 46, and be provided with and insert localized jack 52 for pilot pin 45 in the bottom surface of back pad 5, owing to being influenced by the spring expansion, inserts in the jack 52 by pilot pin 45, so the back pad 5 of peacetime state is to be positioned on the chair back 4, but after pilot pin 45 being extracted in by jack 52 with manual mode, back pad 5 can 51 produce traversing effect with cooperating of slide rail 44 with integrating with, and inserts in the locating holes 53 with pilot pin 45 after traversing again and reaches the location.By of the traversing effect of above-mentioned seat cushion 2 with back pad 5, can make the patient by moving on the wheelchair 10 on the bed or by moving on the bed on the wheelchair 10, because seat cushion 2 and back pad 5 are as slide plate, so do not need during patient's translation to assist with other accessory plate again, thus, just can avoid causing patient's wound or decubital ulcer pain.
In addition, when wheelchair 10 changes over chaise longue shape (as Fig. 9) by seat or changes over seat shape (as Fig. 1) by chaise longue, in the synchronous interlock process of the sufficient platform 3 and the chair back 4, patient's back can produce friction law with back pad 5, make back decubital ulcer or wound cause pain, this can be understood by Figure 13, acquisition shown in Figure 14.
As shown in figure 13, when the chair back 4 was upright state, human body was three positions such as head a1, back a2 and buttocks a3 with contacting of back pad 5, and human body when adopting sitting posture center of gravity be that pendulum is in buttocks a3 position; Satisfy when the chair back 4 pivots backward, as shown in figure 14, human body head a1, back a2 can topple over thereupon backward, but buttocks a3 still remains unchanged; Only back a2, buttocks a3,113 on pivot are triangle corresponding relations, since the rotating shaft of back a2 be the position in position near buttocks a3, and the rotating shaft of back pad 5 is at pivot 113, therefore is fixed on the back pad 5 on the chair back 4, during along with the chair back 4 rotations, will produce friction with human body back a2; In addition, because the difference of rotating shaft, can be when wheelchair 1 be sitting posture by the lying posture change, the normal force that the chair back 4 rises is different with the normal force of human body back a2, and the strength that can cause human body to be passed forward produces, and makes human buttock a3 slightly toward front slide.
Be head it off, have only and make back pad 5 have the straight skidding function can to overcome it, promptly as shown in figure 15, in the chair back 4 rotary courses, the downslide action be touched and be produced to back pad 5 can along with the subsides of human body back a2, that is to say that back pad 5 no longer is to be fixed on the chair back 4, but raising up or hypsokinesis and produce slip along with the chair back 4, though therefore back pad 5 keeps contacting closely with back a2, during as the chair back 4 hypsokinesis, back pad 5 promptly can glide; Otherwise the chair back 4 raises up then that back pad promptly rises, and thus, back a2 and back pad 5 remain and contact and do not rub.
In order to make back pad 5 have the longitudinal sliding motion function, design of the present invention as shown in figure 16, on two side levers 41 for the chair back 4 vertical slide rail 47 is set all, other sets up one group of sliding sash 40, and it is made up of two side levers 48, several and the bonded cross bar 43 of two side levers, side lever be provided with for 48 times with slide rail 47 symmetrical cooperate integrate with 49, thus, sliding sash 40 integrate with 49 with the cooperation of slide rail 47 under and tool straight skidding function thus, just can make back pad 5 length travel on the chair back 4 by back of the body frame 40; Still be provided with slide rail 44 on the cross bar 43 of sliding sash 40 again, and back pad still is provided with slide rail 44 symmetry cooperates and integrates with 51 for 5 times, so back pad 5 still has traversing effect, the seat cushion 5 of this figure embodiment can have longitudinal and transverse locomotive function concurrently then.In addition, the present invention also can make 5 tool vertical shifts of seat cushion function, and does not have traversing function, that is only under seat cushion 5, be provided with the vertical slide rail of back of the body frame 4 two 47 symmetrical cooperate integrate with 49, and sliding sash 40 is not set, so just can make 5 tool vertical shifts of seat cushion function, and not have traversing function.
As shown in figure 17, be seat cushion 2 exploded views of wheelchair of the present invention, the body of seat cushion 2 is provided with groove 28, its notch forward, so the seat cushion body shape takes the shape of the letter U; Again just can two skidding of ccontaining front and back in the groove 28, be respectively between first skidding 23 and second skidding, 24, two pads and connect with hinge 25; In addition the two side of groove 28 is provided with slide rail 22, and the both sides of second skidding 24 are provided with slide rail 22 symmetries cooperate and integrate with 26; When normality was used, first, second skidding the 23, the 24th was traversingly gone in the groove 28, made seat cushion 2 no longer include groove and presented, just like Fig. 2, seat cushion shown in Figure 11.But when using human desires to go to toilet, only need to move behind the wheelchair 10, toilet is gone in the seat support 1, have as shown in figure 18, at this moment seat cushion 2 just in time the position directly over toilet, also outwards detach with hand grip first skidding 23 preceding drawing with the nurse personnel again 27, just can together pull out (as Figure 19) together with second skidding 24, until first skidding 23 down and 24 of second skidding can stop displacement before notch, at this moment seat cushion 2 central authorities present microscler breach, so that patient's Excretory organ position is beneficial to big or small defecation on microscler breach, Ci Shi first skidding 23 is to be bottom state again, because the position is in central authorities, so can not hinder putting or moving of patient's biped; Otherwise, desire when reduction, go into the position with second skidding 24 is traversing earlier, then go into the position with first skidding 23 is traversing again, just can reach fast again implementation result easily.
In addition, seat cushion 2 both sides of disclosing seat support 1 among earlier figures 1～Fig. 6 are provided with pin 116, and pin 116 is the sides that are hubbed on upper frame boom 111, can avoid seat cushion 2 left and right sides unusual fluctuations by pin 116; In addition, also can with about two handrails 6 stop seat cushion 2, but behind handrail 6 bottoms, hold up under the state that leans on for both hands at no handrail 6, just need to rely on pin 116 to stop that seat cushion 2 avoids displacement.
Second implements aspect
As shown in figure 20, this aspect is characterised in that female bar 121 rear ends of underframe 12 are directly to combine with rear wheel 15, no longer includes aforesaid sub bar 122, but has flat shape sliding sash 124 and form long rail groove at female bar 121; In addition, first connecting rod 131 bottoms in the bracing frame 13 are provided with slide bar 138 (slide bar more can in conjunction with roller), this slide bar 138 more standard in the rail groove of sliding sash 124; Secondly, female bar 121 lower ends are more in conjunction with pushing away the device 16 of pulling, slide bar 138 is then shared with first connecting rod 131 in expansion link 161 ends of this device, so when expansion link 161 stretches, can directly promote first connecting rod 131, mat first connecting rod 131 changes the angle degree with second connecting rod 132 again, and makes the vertical pivot 112 of two connecting rods raise upper frame 11 firm liftings jointly with slide bar 136.The advantage of this design is that underframe 12 no longer is the flexible body of rod, so during seat support 1 lifting, the front and back two width W that take turns 14,15 no longer change, only have only support bracing frame 13 to be pushed away the telescopic action of the device 16 of pulling and change the height H 1 of upper frame 11, therefore the chassis of wheelchair 1 stability promotes, and safety also improves.
The 3rd implements aspect
As shown in figure 21, different with aforementioned foot platform 3 is that two pedals 33 are to be hubbed on the difference pole 38 of sub bar 35, is not to be located on the sheer pole 36; Two side levers, 31 lower ends need not to be provided with slotted hole again, just can be fixing with the sub bar 35 that is screwed into mode and will shuttles back and forth in side lever 31 with bolt 37.
More than, the good enforcement kenel according to shown in graphic has been described in detail the present invention; But the dealer can carry out various changes in the scope that does not surmount main idea of the present invention, therefore, utilizes the enforcement kenel with the relevant structure of the present invention such as, needs only the various change embodiment in not exceeding main idea scope of the present invention, all should contain to belong in the category of the present invention.
Claims (13)
1. a Wheelchair structure comprises: the seat support that can Gong take; One covers in the seat cushion of seat support end face; One is articulated in the sufficient platform of seat support front end; One is articulated in the chair back of chair base rear end; One covers the back pad on the chair back; Two are located at the handrail of seat support both sides; Reach four and be located at the beneath front and rear wheel of seat support; It is characterized in that:
Seat support by upper frame, underframe and be located at upper frame and underframe between bracing frame formed;
Aforementioned upper frame be about two truss, front and back two pivots form;
And underframe by about two female bars, the front rail that is connected between two female bars formed;
Support frame is with the side frame body of upper frame and underframe both sides secure bond.
2. a Wheelchair structure comprises: the seat support that can Gong take; One covers in the seat cushion of seat support end face; One is articulated in the sufficient platform of seat support front end; One is articulated in the chair back of chair base rear end; One covers the back pad on the chair back; Two are located at the handrail of seat support both sides; Reach four and be located at the beneath front and rear wheel of seat support; It is characterized in that:
Seat support by upper frame, underframe and be located at upper frame and underframe between bracing frame formed;
Aforementioned upper frame is made up of left and right two booms and forward and backward two pivots that are located between two booms, and under boom parallel sliding sash is arranged and form long rail groove;
Underframe is made up of aircraft carrier bar in left and right two, the stretch sub bar in female bar and the front rail that is combined between two female bars, and the front end of this female bar is combined with front-wheel, and the rear end of sub bar is in conjunction with trailing wheel; Again, be installed with under the underframe and push away the device of pulling, this pushes away the device of pulling and has expansion link, and the end of expansion link then combines with the underframe sub bar;
In addition, bracing frame is a forked link, and it is formed by first push rod, second push rod and with the pivot of two push rod cross coupled, and the bottom of this two push rod is combined in female bar front end and sub bar rear end with pivot individually, two connecting rods is intersect setting; The first push rod top and upper frame boom, sufficient platform bogie side frame are shared a pivot again, and the second push rod top then is horizontally set with in slide bar and the sliding sash rail groove of standard under the seat support upper frame;
That sub bar in the female bar of underframe is also produced is flexible by being located at the actuation means on the handrail, being made the expansion link that pushes away the device of pulling, and the angle of first and second connecting rod is changed, and changes and make seat support produce lifting.
3. a Wheelchair structure comprises: the seat support that can Gong take; One covers in the seat cushion of seat support end face; One is articulated in the sufficient platform of seat support front end; One is articulated in the chair back of chair base rear end; One covers the back pad on the chair back; Two are located at the handrail of seat support both sides; Reach four and be located at the beneath front and rear wheel of seat support; It is characterized in that:
Seat support by upper frame, underframe and be located at upper frame and underframe between bracing frame formed;
Upper frame is made up of left and right two booms and forward and backward two pivots that are located between two booms, and under boom parallel sliding sash is arranged and form long rail groove;
Underframe is made up of left and right two female bars and the front rail that is combined between two female bars, and this female bar front end is combined with front-wheel, and the rear end then is combined with trailing wheel, and underframe has sliding sash and forms long rail groove; In addition, also be provided with under the underframe and push away the device of pulling, this pushes away the device of pulling and has expansion link, and the expansion link end has slide bar;
In addition, bracing frame is a forked link, it is formed by first push rod, second push rod and with the pivot of two push rod cross coupled, wherein, the first push rod top and upper frame boom, sufficient platform bogie side frame are shared a pivot, same slide bar is then shared with the expansion link that pushes away the device of pulling in the bottom, and this slide bar and standard are in the long rail groove of the sliding sash of female bar; The second push rod top then is horizontally set with in slide bar and the sliding sash rail groove of standard under the upper frame boom, and the bottom then is combined on female bar with pivot;
When the expansion link that pushes away the device of pulling stretches the angle between first and second connecting rod is changed by being located at the actuation means on the handrail, being made, change and make seat support produce lifting.
4. a Wheelchair structure comprises: the seat support that can Gong take; One covers in the seat cushion of seat support end face; One is articulated in the sufficient platform of seat support front end; One is articulated in the chair back of chair base rear end; One covers the back pad on the chair back; Two are located at the handrail of seat support both sides; Reach four and be located at the beneath front and rear wheel of seat support; It is characterized in that:
Be extended with pole under two side levers of the chair back, wherein a pole is connected with the end of the expansion link that pushes away the device of pulling, and the rear end system that pushes away the device of pulling is fixed under the seat support upper frame, makes that pushing away the device of pulling is the oblique angle setting; Another pole then articulates with an interlinking lever end, and connecting rod end in addition then articulates with the side lever of sufficient platform; By being located at the actuation means on the handrail, being made the device of pulling of pushing away under the seat support upper frame promote the chair back and the chair back and sufficient interstation and articulate, and reached the chair back and synchronous interlock of sufficient platform and angle adjustment with connecting rod.
5. as claim 1 to 4 any one described Wheelchair structure wherein, it is characterized in that: sufficient platform by about two side levers, connect two side levers cross tube, be located at two sub bars in the side lever, the sheer pole, two that connect two sub bars is used for fixing the bolt of sub bar and the two pedal that is located under the sub bar is formed, the foot that is provided with between two side levers in order to the foot contact fills up in addition.
6. as claim 1 to 4 any one described Wheelchair structure wherein, it is characterized in that: sufficient platform by about two side levers, connect two side levers cross tube, connect two sub bars sheer pole, be located at the two pedal on the difference pole of two side levers and the bolt that is arranged on the side lever is formed.
7. as claim 1 to 4 any one described Wheelchair structure wherein, it is characterized in that: have several cross bars between two booms of seat support upper frame, cross bar is provided with slide rail, and be provided with in the bottom surface of seat cushion and the integrating with of slide rail relative engagement, and it is traversing to hinder the spacer seat cushion by the default pin of both sides boom.
8. as claim 1 to 4 any one described Wheelchair structure wherein, it is characterized in that: the both sides boom side of seat support upper frame is being fixed pedestal, combine with handrail with hinge on the pedestal, be provided with pilot pin in the bottom bar of handrail, the pilot pin string is being established spring, can force pilot pin to insert in the default locating hole of pedestal then and reach locating effect.
9. a Wheelchair structure comprises: the seat support that can Gong take; One covers in the seat cushion of seat support end face; One is articulated in the sufficient platform of seat support front end; One is articulated in the chair back of chair base rear end; One covers the back pad on the chair back; Two are located at the handrail of seat support both sides; Reach four and be located at the beneath front and rear wheel of seat support; It is characterized in that:
On two side levers for back of the body frame vertical slide rail is set, in addition by one group of sliding sash of being made up of several cross bars and two side levers, is provided with under the side lever of sliding sash and integrating with that vertical slide rail symmetry cooperates, back pad has the straight skidding function by this group sliding sash.
10. Wheelchair structure as claimed in claim 9 is characterized in that: the cross bar of sliding sash is provided with horizontal slide rail, and back pad has and integrating with that horizontal slide rail symmetry cooperates.
11. as claim 9 or 10 described Wheelchair structures, it is characterized in that: the chair back is provided with pilot pin, and the jack that the back pad bottom surface is provided with and pilot pin symmetry cooperates, this pilot pin can insert in the jack and back pad is located.
12. a Wheelchair structure comprises: the seat support that can Gong take; One covers in the seat cushion of seat support end face; One is articulated in the sufficient platform of seat support front end; One is articulated in the chair back of chair base rear end; One covers the back pad on the chair back; Two are located at the handrail of seat support both sides; Reach four and be located at the beneath front and rear wheel of seat support; It is characterized in that:
The body of seat cushion is provided with groove, and notch forward, so the seat cushion body shape takes the shape of the letter U; Just can fill up ccontaining front and back two in the groove again, be respectively first skidding and second skidding, connect with hinge between two pads; The two side walls of groove is provided with slide rail in addition, and the both sides of second skidding are provided with and integrating with that the slide rail symmetry cooperates; When first skidding is pulled outwardly when moving, the second skidding meeting is together moved, and until first skidding pivot pendulum down, and second skidding moves to till the first skidding position, makes the seat cushion body center form long nick.
13. Wheelchair structure as claimed in claim 12 is characterized in that: before first skidding, be provided with and draw handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03131134 CN1256921C (en) | 2003-05-13 | 2003-05-13 | Wheelchair structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03131134 CN1256921C (en) | 2003-05-13 | 2003-05-13 | Wheelchair structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1548020A true CN1548020A (en) | 2004-11-24 |
| CN1256921C CN1256921C (en) | 2006-05-24 |
Family
ID=34322798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03131134 Expired - Fee Related CN1256921C (en) | 2003-05-13 | 2003-05-13 | Wheelchair structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1256921C (en) |
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| CN101380262B (en) * | 2007-09-07 | 2010-08-25 | 国睦工业股份有限公司 | Electric wheelchair |
| CN103932848A (en) * | 2014-04-24 | 2014-07-23 | 郑清荣 | Full-automatic hydraulic lifting marching type electric stair climbing wheelchair |
| CN105434119A (en) * | 2014-09-01 | 2016-03-30 | 特瑞国际开发有限公司 | Dual-drive wheelchair |
| CN106038124A (en) * | 2016-07-12 | 2016-10-26 | 天津市鑫成新科贸有限公司 | Lifting pedal plates of wheelchair |
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| CN101380262B (en) * | 2007-09-07 | 2010-08-25 | 国睦工业股份有限公司 | Electric wheelchair |
| CN103932848A (en) * | 2014-04-24 | 2014-07-23 | 郑清荣 | Full-automatic hydraulic lifting marching type electric stair climbing wheelchair |
| CN105434119A (en) * | 2014-09-01 | 2016-03-30 | 特瑞国际开发有限公司 | Dual-drive wheelchair |
| CN105434119B (en) * | 2014-09-01 | 2017-06-30 | 特瑞国际开发有限公司 | Dual drive wheelchair |
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| CN110575325A (en) * | 2019-05-06 | 2019-12-17 | 宜春学院 | multifunctional wheelchair structure |
| CN112656596B (en) * | 2019-10-15 | 2023-03-21 | 苏建忠 | Multifunctional wheelchair |
| CN112656596A (en) * | 2019-10-15 | 2021-04-16 | 苏建忠 | Multifunctional wheelchair |
| CN110916919B (en) * | 2019-11-27 | 2021-08-31 | 深圳零壹建筑设计有限公司 | Multifunctional electric folding wheelchair |
| CN110916919A (en) * | 2019-11-27 | 2020-03-27 | 深圳零壹建筑设计有限公司 | Multifunctional electric folding wheelchair |
| CN112089538A (en) * | 2020-10-09 | 2020-12-18 | 姚福 | Wheelchair with rehabilitation assisting walking function |
| CN112089538B (en) * | 2020-10-09 | 2022-05-27 | 王予安 | Wheelchair with rehabilitation assisting walking function |
| CN113175985A (en) * | 2021-04-23 | 2021-07-27 | 滨州医学院烟台附属医院 | Weighing device for bedridden patient |
| CN113175985B (en) * | 2021-04-23 | 2022-03-25 | 滨州医学院烟台附属医院 | Weighing device for bedridden patient |
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| Publication number | Publication date |
|---|---|
| CN1256921C (en) | 2006-05-24 |
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