CN108186218A - It is a kind of can folding deformation multifunctional wheelchair - Google Patents
It is a kind of can folding deformation multifunctional wheelchair Download PDFInfo
- Publication number
- CN108186218A CN108186218A CN201810188024.2A CN201810188024A CN108186218A CN 108186218 A CN108186218 A CN 108186218A CN 201810188024 A CN201810188024 A CN 201810188024A CN 108186218 A CN108186218 A CN 108186218A
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- back leg
- tooth
- lock
- seat board
- flank
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- 230000007246 mechanism Effects 0.000 claims abstract description 35
- 210000001364 upper extremity Anatomy 0.000 claims abstract description 21
- 241000219098 Parthenocissus Species 0.000 claims abstract description 13
- 230000007704 transition Effects 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 15
- 238000010586 diagram Methods 0.000 description 7
- 241000935985 Certhiidae Species 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
- A61G5/061—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps for climbing stairs
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/006—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs convertible to stretchers or beds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/06—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps
- A61G5/066—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs with obstacle mounting facilities, e.g. for climbing stairs, kerbs or steps with endless belts
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/08—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable
- A61G5/0883—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable having locking means for maintaining a folded or unfolded condition
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1056—Arrangements for adjusting the seat
- A61G5/1067—Arrangements for adjusting the seat adjusting the backrest relative to the seat portion
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Handcart (AREA)
Abstract
The invention discloses it is a kind of can folding deformation multifunctional wheelchair, including：Fully collapsible invalid's chair and the creeper undercarriage being arranged on rear side of fully collapsible invalid's chair；Fully collapsible invalid's chair includes：Back leg, seat board frame, lower supporter, front leg and supporting rod, creeper undercarriage include：Two groups of pedrail mechanisms installed by track frame；Supporting rod can be bent, when stretching, support base grillage, lower supporter, front leg and back leg lower part form stable quadrilateral structure, fully collapsible invalid's chair is made to be used as wheelchair, and creeper undercarriage stair activity can be passed through；When supporting rod is bent, seat board frame and lower supporter are rotated down, and connecting plate is fixed to by the cooperation of locking bolt and locking mechanism on seat board frame, and it is in planar to make the top of seat board frame and back leg, and the fully collapsible invalid's chair is made to be used as stretcher；One wheelchair improves the utilization rate of public utility, economizes on resources with regard to that can meet the needs of public places such as hospital, home for destitute are to a variety of public utilities such as wheelchair, stretchers.
Description
Technical field
The present invention relates to wheelchair clothing arts, and in particular to it is a kind of can folding deformation multifunctional wheelchair.
Background technology
With the development of society, Medical Devices and its auxiliary appliance have obtained significant progress, wherein such as wheelchair etc
Common auxiliary appliance becomes more and more practical and diversification, such as：Folding wheelchair, convenient for storage when not in use and
Convenient for the handicapped convenient stair activity of people, great convenience is provided for user for transfer, the wheelchair of climbing stairs.
Only, these wheelchairs vdiverse in function bias toward family's private more from design is upper, because the demand of user is different, often pay attention to
The protrusion of simple function is provided with demander selection purchase and uses, can leave unused when not in use, it is not required that is too many other complicated
Function.However, in public places such as hospital, homes for destitute, the people that wheelchair is often provided with demand as communal facility is used in conjunction with
, in different users or different use occasions, the function of being laid particular stress on is naturally just different, and for maximum possible
The input of communal facility is saved, one preferably has multiple functions wheelchair, and wherein other than as wheelchair normal use,
Highest use demand is stair-climbing wheel chair and stretcher.
Invention content
In view of the above-mentioned problems, the present invention propose it is a kind of can folding deformation multifunctional wheelchair, can safe and convenient it is upper downstairs
Ladder may be deformed to stretcher use, and convenient for being used as communal facility, multi-purpose content economizes on resources, and simple in structure, and configuration is thrown
Enter low.
It is a kind of can folding deformation multifunctional wheelchair, including：Fully collapsible invalid's chair and the crawler belt row being arranged on rear side of fully collapsible invalid's chair
Walk mechanism；The fully collapsible invalid's chair includes：Back leg, seat board frame, lower supporter, front leg and supporting rod, the back leg are in middle part
The dog-ear shape bent backward, and the angle bent backward is 15 ° -30 °, the bottom of back leg passes through triangle connection element and the bottom
The rear end of stent is hinged, and the lower part of triangle connection element is equipped with rear roller；The rear end of the seat board frame is hinged to back leg
Middle part, and hinge joint is located at the lower section of inflection point, the front end of seat board frame is hinged by the upper end of connecting plate and the front leg, preceding
The lower end of leg support is hinged with lower supporter front end, and the lower end of front leg is provided with the universal wheel being projected into below lower supporter；It is described
The upper end of supporting rod is hinged on the connecting plate, and the lower end of supporting rod is hinged to the rear portion of the seat board frame；The connecting plate
Lower part be provided with the locking bolt outwardly protruded, the rear portion of the lower supporter is provided with and the corresponding locking mechanism of the locking bolt；
The creeper undercarriage includes：Two groups by track frame install pedrail mechanisms, the lower end of track frame described in two groups respectively with
The triangle connection element of both sides is hinged, offered in the middle part of track frame along track frame length direction extension sliding slot, and
Level wears a slide bar in two sliding slots, and the middle part of the slide bar passes through hinged in the middle part of the rear side of connecting rod and back leg, institute
The middle part for stating connecting rod is hinged by the back lower of pneumatic spring and back leg；The close triangle that the slide bar is located at sliding slot connects
During one end of fitting, pedrail mechanism folding is posted by the rear portion of back leg, and the slide bar is located at the separate triangle connection element of sliding slot
One end when, pedrail mechanism outwardly opens upper parallel with back leg；The supporting rod can be bent, when supporting rod stretches, branch
Stable quadrilateral structure is formed at the lower part for supportting seat board frame, lower supporter, front leg and back leg, makes the fully collapsible invalid's chair conduct
Wheelchair uses；When supporting rod is bent, seat board frame and lower supporter are rotated down, and the connecting plate passes through the locking bolt and locking mechanism
Cooperation be fixed on seat board frame, the top of seat board frame and back leg is made the fully collapsible invalid's chair to be made to make as stretcher in planar
With.
Further, the locking mechanism includes：Housing and the lock fork being arranged in housing, flank of tooth closing piece, unlock pin,
Lock-bit spring and resetting spring offer the fore shaft of indent, the prong of the lock fork on the side of the width direction of the housing
Bottom end is rotatably installed on by axis pin in the housing, and the intersection end of lock fork is made to be located in the fore shaft, described
When lock fork rotates outward, fore shaft and prong are opened, when the lock fork inwardly rotates, prong is closed to form the fixed lock with fore shaft
The lockhole of bolt；The flank of tooth closing piece can be arranged on along what the length direction of housing slided in housing, and flank of tooth closing piece and lock fork
Intermeshing lock tooth is provided on accessible face, the flank of tooth closing piece sets the lock-bit bullet away from one end of lock tooth
Spring is provided with the waist-shaped hole along length side's arrangement of housing in the middle part of flank of tooth closing piece；After the unlock pin passes through the waist-shaped hole
It inserts on housing, one end of unlock pin is projected into outside housing, and the opposite other end sets the resetting spring, and the unlock
Pin is provided with unlock section away from one end of resetting spring, it is described unlock section backwards to the lock increment outwardly convex of flank of tooth closing piece and with
The waist-shaped hole is adapted, and the shank for unlocking section and unlock pin is in chamfered transition.
Further, unidirectional tooth of the lock tooth for flank of tooth direction on the contrary on the flank of tooth closing piece and lock fork, the flank of tooth lock
The flank of tooth of unidirectional tooth is towards the fore shaft side of housing on block.
Further, the supporting rod includes：It the upper rack posts and lower fulcrum bar that are hinged and is slidably nested with upper
Casing outside strut and lower fulcrum bar, the upper rack posts and lower fulcrum bar are in identical tubular structure, the connection of upper rack posts and lower fulcrum bar
End is all provided with being set to angle, and the side of the protrusion of angle is hinged by shaft, makes upper rack posts and lower fulcrum bar coaxially connected.
Further, the supporting rod further includes：The lock ring of described sleeve pipe one end is arranged on, the lock ring is nested with described
Outside upper rack posts/lower fulcrum bar, rotating the lock ring makes the latch in lock ring sting tight or release upper rack posts/lower fulcrum bar.
Further, the supporting rod further includes：The intraluminal spring of the upper rack posts and lower fulcrum bar is arranged on, it is described
The both ends of spring are connect respectively with upper rack posts and lower fulcrum bar.
Further, it is described can folding deformation multifunctional wheelchair further include:Headrest frame and pedal frame, the headrest frame can
The flexible upper end for being plugged in the back leg, the folding front end for being arranged on the lower supporter of the pedal frame.
Further, the stage casing on the back leg top is provided with handrail, after the upper end at the back leg rear portion is provided with
Handle, the handrail and rear handle can recline back leg folding；The front end of the lower supporter is provided with tensile front handlebar.
Further, it is both provided with safety belt on the top of the back leg and seat board frame.
The beneficial effects of the invention are as follows：
1st, it is provided by the invention can folding deformation multifunctional wheelchair, can be used as common wheelchair, crawler belt can be passed through
The stair activity of walking mechanism safe and convenient can be deformed into stretcher use, once wheelchair can be met the public affairs such as hospital, home for destitute
Demand of the place to a variety of public utilities such as wheelchair, stretcher altogether, improves the utilization rate of public utility, economizes on resources；
2nd, it is provided by the invention can folding deformation multifunctional wheelchair, relative to existing functional form wheelchair, not in structure
On add excessive structure, it is simple in structure, it is easy to use, configuration input it is low, be suitable as communal facility and come into operation.
Description of the drawings
Fig. 1 is the structure diagram of wheelchair state of the embodiment of the present invention；
Fig. 2 is the structure diagram of stair activity state of the embodiment of the present invention；
Fig. 3 is the structure diagram of stretcher state of the embodiment of the present invention；
Fig. 4 is the structure enlargement diagram in A portions in Fig. 3；
Fig. 5 is the schematic cross-sectional view of locking mechanism locked state of the embodiment of the present invention；
Fig. 6 is the schematic cross-sectional view of locking mechanism opening state of the embodiment of the present invention；
Fig. 7 is the half section structure diagram of supporting rod of the embodiment of the present invention；
Fig. 8 is the complete section structure diagram of supporting rod of the embodiment of the present invention；
Fig. 9 is the structure diagram of B sections in Fig. 8；
Reference numeral：Handle, 12- after 1- fully collapsible invalid's chairs, 11- back legs, 111- triangle connection elements, 112- handrails, 113-
Seat board frame, 122- locking bolts, 13- lower supporters, 131- front handlebars, 14- front legs, 15- supporting rods, is propped up on 151- 121- connecting plates
It is rolled after bar, 152- lower fulcrum bars, 153- angles, 154- shafts, 155- casings, 156- lock rings, 1561- latches, 157- springs, 16-
Wheel, 17- universal wheels, 18- headrest frames, 19- pedal frames, 2- creepers undercarriage, 21- pedrail mechanisms, 211- track frames, 212- are slided
Slot, 22- slide bars, 23- connecting rods, 24- pneumatic springs, 3- locking mechanisms, 31- housings, 311- fore shafts, 32- lock forks, 321- pins
Axis, 33- flank of tooth closing piece, 331- waist-shaped holes, 34- unlock pins, 341- unlocks section, 35- lock-bits spring, 36- resetting springs, 37- locks
Tooth.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, with reference to
Specific embodiment, the present invention is further explained.
As shown in Figures 1 to 9, it is provided in this embodiment can folding deformation multifunctional wheelchair, including：1 He of fully collapsible invalid's chair
It is arranged on the creeper undercarriage 2 of 1 rear side of fully collapsible invalid's chair；The fully collapsible invalid's chair 1 includes：Back leg 11, seat board frame 12, lower supporter
13rd, front leg 14 and supporting rod 15, back leg 11 are in the dog-ear shape that bends backward of middle part, and the angle bent backward for 15 °-
30 °, the bottom of back leg 11 is hinged by triangle connection element 111 and the rear end of lower supporter 13, and the lower part of triangle connection element 11
Rear roller 16 is installed；The rear end of seat board frame 12 is hinged to the middle part of back leg 11, and hinge joint is located at the lower section of inflection point, seat
The front end of grillage 12 is hinged by connecting plate 121 and the upper end of front leg 14, the lower end of front leg 14 and the front end of lower supporter 13
It is hinged, and the lower end of front leg 14 is provided with the universal wheel 17 for being projected into 13 lower section of lower supporter；The upper end of supporting rod 15 is hinged to
On connecting plate 121, the lower end of supporting rod 15 is hinged to the rear portion of seat board frame 13；The lower part of connecting plate 121, which is provided with, to be outwardly protruded
Locking bolt 122, the rear portion of lower supporter 13 is provided with and 122 corresponding locking mechanism 3 of the locking bolt；Creeper undercarriage 2 includes：
Two groups of pedrail mechanisms 21 installed by track frame 211, the lower ends of two groups of track frames 211 respectively with the triangle connection element of both sides
111 is hinged, makes its connection adjustable angle with back leg 11, the middle part of track frame 211 is offered along the length side of track frame 211
To the sliding slot 212 of extension, and level wears a slide bar 22 in the sliding slot 212 of two track frames 211, and the middle part of the slide bar 22 leads to
A connecting rod 23 is crossed with hinged in the middle part of the rear side of back leg 11, and the middle part of connecting rod 23 is passed through into pneumatic spring 24 and back leg
The back lower of frame 11 is hinged, and passes through the connection of slidable adjustment pedrail mechanism 21 of the slide bar 22 in sliding slot 212 and back leg 11
Angle, pneumatic spring 24 does adaptability and stretches in mediation process, and passes through connecting rod 23 with pneumatic spring 24 to pedrail mechanism 21
Connection angle be fixed；Specifically, referring to Fig. 1, slide bar 22 is located at one end of the close triangle connection element 111 of sliding slot 212
When, 21 folding of pedrail mechanism is posted by the rear portion of back leg 11, and slide bar 22 is located at the separate triangle connection element 111 of sliding slot 212
During one end, pedrail mechanism 21 outwardly open it is upper parallel with back leg 11, so as to stair activity use and as stretcher when
Implementation.
Supporting rod 15 can be bent, referring to Fig. 1 and Fig. 2, when supporting rod 15 stretches, and support base grillage 12, lower supporter 13, foreleg
Stable quadrilateral structure is formed at the lower part of frame 14 and back leg 11, fully collapsible invalid's chair 1 is made to be used as wheelchair, at this point, because after
Leg support 11 is in the dog-ear shape that middle part is bent backward, and the lower part of back leg 11 is in upright state, and 11 top of back leg is in omit backward
Inclined state, when human body is sitting on seat board frame 12, back is in the dependence of back-tilting type, more comfortably.Referring to Fig. 1, ordinary wheel is done
Chair is located at one end of the close triangle connection element 111 of sliding slot 212 in use, the slide bar 22 of creeper undercarriage 2 glides,
21 folding of pedrail mechanism is posted by the rear portion of back leg 11, other people is facilitated to stand after wheelchair implementation.And want stair activity
When, it is only necessary to slide bar 22 is pulled upward to one end of the separate triangle connection element 111 positioned at sliding slot 212, makes pedrail mechanism 21 outside
It opens and upper parallel with back leg 11, at this point, pedrail mechanism 21 is made to be contacted with step to layback on stair Wheelchair back,
It can easily be moved up and down between step；And in the prior art, some creepers undercarriage 2 are also configured with motor, pass through electricity
Machine provides power drive pedrail mechanism 21 automatic creeping, and stair activity is more convenient.
Referring to Fig. 3, the top that back leg 11 is made after wheelchair is in horizontality, it, can after supporting rod 15 is bent
Seat board frame 12 and lower supporter 13 to be rotated down simultaneously, because back leg 11 is in the dog-ear shape that middle part is bent backward, it is easy to
With regard to seat board frame 12 can be adjusted to be in the top of back leg 11 intimate plane state, and front leg 14 and lower supporter at this time
13 are in the state extended laterally outward, and top, seat board frame 12, front leg 14 and the lower supporter 13 of back leg 11 is made continuously to spread
Being set as one can allow human body to stretch the stretcher face to lie low；To maintain the stabilization in this stretcher face, the lift in Convenient stretcher face is put, will
Connecting plate 121 is fixed to by the cooperation of locking bolt 122 and locking mechanism 3 on seat board frame 13, passes through 11 lower part of back leg and seat board
The angle formed between frame 12, present grillage 12, front leg 14, lower supporter 13 and back leg form stable three between 11 lower part
Angular structure achievees the effect that rock-steady structure.Creeper undercarriage 2 at this time may be at folding state, and above-mentioned is received
The multifunctional wheelchair of shape is sold off as stretcher, and lift, which is exercised, to be used；Creeper undercarriage 2 can also be opened, make pedrail mechanism 21 with
Back leg 11 it is upper parallel, be with bottom surface parallel contact, can it is more convenient by creeper undercarriage 2 will deform and
Into stretcher carry out.
For make it is above-mentioned can folding deformation multifunctional wheelchair use it is more comfortable, it is also provided with headrest frame 18 and foot
Frame 19 is stepped on, the telescopic upper end for being plugged in back leg 11 of the headrest frame 18 is relied on for head, and pedal frame 19 is folding sets for this
It puts in the front end of lower supporter 13, both feet is put to step on, meanwhile, the addition of the two can lengthen length when being used as stretcher, adapt to
The people of different heights lies low.The stage casing on 11 top of back leg is provided with handrail 112, and the upper end at 11 rear portion of back leg is provided with rear
Hand 113, facilitate as wheelchair in use, user by handrail 112 place both hands and other people later by rear handle
113 push wheelchair movement；And the handrail 112 and rear handle 113 can recline 11 folding of back leg, facilitate and used as stretcher
When, by its folding；And tensile front handlebar 131 is set in the front end of lower supporter 13, the lift of Convenient stretcher is put.Back leg 11
Safety belt is both provided on top and seat board frame 12, human body is fixed by safety belt, ensures to receive by above-mentioned
When selling off the multifunctional wheelchair stair activity of shape and being used as stretcher transporting patient, human body can be effectively prevent to turn over and fallen, ensured
It is safe to use.
Certainly, it is above-mentioned can folding deformation multifunctional wheelchair, completely without in use, the supporting rod that can also dismantle
15 with the connection of 13 one end of lower supporter, seat board frame 12, front leg 14 and lower supporter 13 back leg 11 that reclines upwards are folded, it is and normal
The folding for advising fully collapsible invalid's chair is similar, reduces occupied space, facilitates storage and transfer.
As shown in Figs. 4-6, the locking mechanism 3 in the present embodiment includes：Housing 31 and the lock fork being arranged in housing 31
32nd, flank of tooth closing piece 33, unlock pin 34, lock-bit spring 35 and resetting spring 36 are offered on the side of the width direction of housing 31
The fore shaft 311 of indent, the prong bottom end of lock fork 32 are rotatably installed on by axis pin 321 in the housing 31, and make lock
The intersection end of fork 32 is located in the fore shaft 211, when lock fork 32 rotates outward, opens fore shaft 311 and prong, lock fork 32 inwardly rotates
When, prong is closed the lockhole for forming the locking bolt 122 on fixed connecting plate 121 with fore shaft 311, and connecting plate 121 is locked to bottom branch
On frame 13；Flank of tooth closing piece 33 can be arranged in housing 31, and flank of tooth closing piece 33 and lock fork along what the length direction of housing 31 slided
Intermeshing lock tooth 37, one end setting lock-bit bullet away from lock tooth 37 of flank of tooth closing piece 33 are provided on 32 accessible face
Spring 35 makes flank of tooth closing piece 33 be stretched out in its natural state to the direction of lock fork 32, and passes through phase in flank of tooth closing piece 33 and lock fork 32
The lock tooth 37 mutually engaged locks lock fork 32, prevents its rotation, achievees the effect that sealed；The middle part of flank of tooth closing piece 33 is provided with along shell
The waist-shaped hole 331 of length side's arrangement of body 31, unlock pin 34 are inserted after passing through the waist-shaped hole 331 onto housing 31, unlock pin 34
One end be projected into outside housing 31, the opposite other end setting resetting spring 36, and the unlock pin 34 deviate from resetting spring 36
One end be provided with unlock section 341, the unlock section 341 backwards to flank of tooth closing piece 33 37 end outwardly convex of lock tooth and with the waist-shaped hole
331 are adapted, and the shank for unlocking section 341 and unlock pin 34 is in chamfered transition.The unlock section 341 is located at waist type under natural conditions
The outside in hole 331 makes the lock tooth 37 of flank of tooth closing piece 33 be meshed with the lock tooth 37 of 32 prong bottom outer surface of lock fork, to lock
Fork 32 prevents its rotation；Pressing inward against unlock pin 34 makes unlock section 341 enter in waist-shaped hole 331, makes flank of tooth closing piece 33 towards lock-bit
35 one end of spring is moved, and disengagement flank of tooth closing piece 33 is engaged with the locking tooth 37 of lock fork 32, locks locking bolt 122 to rotate lock fork 32
Gu unlock.
To make above-mentioned locking mechanism 3 more convenient to use, the lock tooth 37 on flank of tooth closing piece 33 and lock fork 32 is arranged to
The opposite unidirectional tooth in flank of tooth direction, specifically, referring to Fig. 5 and Fig. 6, the flank of tooth of unidirectional tooth is towards housing 31 on flank of tooth closing piece 33
311 side of fore shaft is set, and the unidirectional tooth direction in lock fork 32 is opposite.When sealed, locking bolt 122 initially enters the prong of lock fork 32,
And lock fork 32 is pressed inward against, at this point, the back of tooth of unidirectional tooth can take advantage of a situation and squeeze the tooth of unidirectional tooth on flank of tooth closing piece 33 in lock fork 32
The back of the body makes flank of tooth closing piece 33 be got out of the way, and then lock fork 32 be free to inwardly rotate to the contraction of lock-bit spring 35, until and fore shaft
311 are closed the lockhole for forming fixing lock bolt 122, and locking bolt is locked；Locking mechanism 3 under locking condition, is turned out lock fork 32
When, the unidirectional tooth in lock fork 32 and flank of tooth closing piece 33 can be in direct contact by the flank of tooth, and the two is not given in mutually, and lock fork 32 can not turn
It is dynamic, it ensure that the effect of locking, flank of tooth closing piece 33 made to be disengaged with the unidirectional tooth in lock fork 32 at this point, unlock pin 34 need to be pressed inward against
Engagement, could rotate lock fork 32 and unlock, and after unclamping unlock pin 34, unlock pin 34 and flank of tooth closing piece 33 can be in 36 Hes of resetting spring
It is resetted under the effect respectively of lock-bit spring 35, so that next time is so that used time automatic lock-bit, realizes the locking to locking bolt 122 or solution
The semi-automation of lock, it is easy to use.
As shown in Figure 7 to 9, the supporting rod 15 in the present embodiment includes：The upper rack posts 151 and lower fulcrum bar being hinged
152 and the casing 155 outside upper rack posts 151 and lower fulcrum bar 152 slidably is nested with, the upper rack posts 151 and lower fulcrum bar 152 are in
Identical tubular structure, the connecting pin of the two are all provided with being set to angle 153, and the side of the protrusion of angle 153 is cut with scissors by shaft 154
It connects, makes upper rack posts 151 and lower fulcrum bar 152 coaxially connected.Casing 155 slides the connection for being nested with upper rack posts 151 and lower fulcrum bar 152
When except portion, upper rack posts 151 and lower fulcrum bar 152 are fixed to the body of rod stretched as one, stable supporting role can be played；
And except the connecting portion that casing 155 both slides into after, the two can be bent relative to shaft 154 into dog-ear, also just be eliminated
Support to seat board frame 12 facilitates and folds to complete to deform by seat board frame 12 and lower supporter 13.
Meanwhile in the lock ring 156 of 155 one end of casing, which is nested with outside upper rack posts 151 or lower fulcrum bar 152, rotation
Twist lock ring 156 makes the latch 1561 in lock ring 156 sting tight or unclamp upper rack posts 151 or lower fulcrum bar 152, so as to by casing 155
Fixed to the certain position on upper rack posts 151 or lower fulcrum bar 152 so that casing 155 it is firm be located at upper rack posts 151 and lower fulcrum bar
On 152 connecting portion, ensure supporting rod 15 stabilization support effect or by casing 155 be fixed to both connecting portion it
Outside, the random of casing 155 is avoided to slide the bending for influencing supporting rod 15 and the folding of fully collapsible invalid's chair 1 deformation.
Further, also in upper rack posts 151 and piece spring 157 of intraluminal setting of lower fulcrum bar 152 in the present embodiment,
The both ends of the spring 157 are connect respectively with upper rack posts 151 and lower fulcrum bar 152, with the connection to upper rack posts 151 and lower fulcrum bar 152
Certain interior pulling force is formed, and when supporting rod 15 is bent, a screen resilience for assisting being restored to straight configuration is provided it, is made
The deformation of fully collapsible invalid's chair 1 becomes more laborsaving, and use is also more convenient.
Using above-mentioned technical proposal can folding deformation multifunctional wheelchair, can use, can also lead to as common wheelchair
Cross the stair activity of 2 safe and convenient of creeper undercarriage, can also be deformed into stretcher use, once wheelchair can meet hospital,
Demand of the public places such as home for destitute to a variety of public utilities such as wheelchair, stretcher improves the utilization rate of public utility, saves money
Source；Meanwhile relative to existing functional form wheelchair, excessive structure is not added in structure, it is simple in structure, it is easy to use,
Configuration input is low, is suitable as communal facility and comes into operation.
In conclusion it is provided by the invention can folding deformation multifunctional wheelchair, can safe and convenient stair activity, it is variable
It forms stretcher to use, convenient for using as communal facility, multi-purpose content economizes on resources, and simple in structure, and configuration input is low.
The basic principles, main features and the advantages of the invention have been shown and described above, for this field skill
For art personnel, it is clear that the present invention is not limited to the details of above-mentioned exemplary embodiment, and without departing substantially from the present invention spirit or
In the case of essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes falling within the meaning and scope of the equivalent requirements of the claims in the present invention
It is interior.Any reference numeral in claim should not be considered as to the involved claim of limitation.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (9)
1. it is a kind of can folding deformation multifunctional wheelchair, which is characterized in that including：It fully collapsible invalid's chair and is arranged on rear side of fully collapsible invalid's chair
Creeper undercarriage,
The fully collapsible invalid's chair includes：Back leg, seat board frame, lower supporter, front leg and supporting rod, the back leg in middle part backward
The dog-ear shape of bending, and the angle bent backward is 15 ° -30 °, the bottom of back leg passes through triangle connection element and the lower supporter
Rear end be hinged, and the lower part of triangle connection element is equipped with rear roller；The rear end of the seat board frame is hinged to the middle part of back leg,
And hinge joint is located at the lower section of inflection point, the front end of seat board frame is hinged by the upper end of connecting plate and the front leg, front leg
Lower end be hinged with lower supporter front end, and the lower end of front leg is provided with the universal wheel being projected into below lower supporter；The support
The upper end of bar is hinged on the connecting plate, and the lower end of supporting rod is hinged to the rear portion of the seat board frame；Under the connecting plate
Portion is provided with the locking bolt outwardly protruded, and the rear portion of the lower supporter is provided with and the corresponding locking mechanism of the locking bolt；
The creeper undercarriage includes：Two groups of pedrail mechanisms installed by track frame, the lower end of track frame described in two groups point
It is not hinged with the triangle connection element of both sides, the sliding slot along the length direction extension of track frame is offered in the middle part of track frame,
And level wears a slide bar in two sliding slots, the middle part of the slide bar in the middle part of the rear side of connecting rod and back leg by cutting with scissors
It connects, the middle part of the connecting rod is hinged by the back lower of pneumatic spring and back leg；The slide bar is located at the close of sliding slot
During one end of triangle connection element, pedrail mechanism folding is posted by the rear portion of back leg, and the slide bar is located at the separate triangle of sliding slot
During one end of connector, pedrail mechanism outwardly opens upper parallel with back leg；
The supporting rod can be bent, when supporting rod stretches, support base grillage, lower supporter, front leg and back leg lower part shape
Into stable quadrilateral structure, the fully collapsible invalid's chair is made to be used as wheelchair；When supporting rod is bent, seat board frame and lower supporter are downward
Rotation, the connecting plate are fixed to by the cooperation of the locking bolt and locking mechanism on seat board frame, make seat board frame and back leg
Top is in planar, and the fully collapsible invalid's chair is made to be used as stretcher.
2. it is according to claim 1 can folding deformation multifunctional wheelchair, which is characterized in that
The locking mechanism includes：Housing and the lock fork being arranged in housing, flank of tooth closing piece, unlock pin, lock-bit spring and multiple
Position spring,
The fore shaft of indent is offered on the side of the width direction of the housing, the prong bottom end of the lock fork passes through axis pin
It is rotatably installed in the housing, and the intersection end of lock fork is made to be located in the fore shaft, when the lock fork rotates outward, beat
Unlocking port and prong, when the lock fork inwardly rotates, prong is closed the lockhole to form the fixed locking bolt with fore shaft；
The flank of tooth closing piece can be arranged on along what the length direction of housing slided in housing, and flank of tooth closing piece and lock fork is accessible
Face on be provided with intermeshing lock tooth, the flank of tooth closing piece sets the lock-bit spring, the flank of tooth away from one end of lock tooth
The waist-shaped hole along length side's arrangement of housing is provided in the middle part of closing piece；
The unlock pin is inserted after passing through the waist-shaped hole onto housing, and one end of unlock pin is projected into outside housing, and opposite is another
One end sets the resetting spring, and the unlock pin is provided with unlock section, the unlock section away from one end of resetting spring
Backwards to flank of tooth closing piece lock increment outwardly convex and be adapted with the waist-shaped hole, and the shank for unlocking section and unlock pin is in inclined-plane
Transition.
3. it is according to claim 2 can folding deformation multifunctional wheelchair, which is characterized in that
Lock tooth on the flank of tooth closing piece and lock fork unidirectional tooth opposite for flank of tooth direction, the tooth of unidirectional tooth on the flank of tooth closing piece
Face is towards the fore shaft side of housing.
4. it is according to claim 1 can folding deformation multifunctional wheelchair, which is characterized in that
The supporting rod includes：It the upper rack posts and lower fulcrum bar that are hinged and is slidably nested with outside upper rack posts and lower fulcrum bar
Casing, in identical tubular structure, the connecting pin of upper rack posts and lower fulcrum bar is all provided with being set to angle for the upper rack posts and lower fulcrum bar,
And the side of the protrusion of angle is hinged by shaft, makes upper rack posts and lower fulcrum bar coaxially connected.
5. it is according to claim 4 can folding deformation multifunctional wheelchair, which is characterized in that
The supporting rod further includes：The lock ring of described sleeve pipe one end is arranged on, the lock ring is nested in the upper rack posts/lower fulcrum bar
Outside, rotating the lock ring makes the latch in lock ring sting tight or release upper rack posts/lower fulcrum bar.
6. it is according to claim 5 can folding deformation multifunctional wheelchair, which is characterized in that
The supporting rod further includes：It is arranged on the intraluminal spring of the upper rack posts and lower fulcrum bar, the both ends point of the spring
It is not connect with upper rack posts and lower fulcrum bar.
7. according to claim 1-6 any one of them can folding deform multifunctional wheelchair, which is characterized in that
It further includes:Headrest frame and pedal frame, the telescopic upper end for being plugged in the back leg of the headrest frame, the pedal frame
The folding front end for being arranged on the lower supporter.
8. according to claim 1-6 any one of them can folding deform multifunctional wheelchair, which is characterized in that
The stage casing on the back leg top is provided with handrail, and the upper end at the back leg rear portion is provided with rear handle, the handrail
It can recline back leg folding with rear handle；The front end of the lower supporter is provided with tensile front handlebar.
9. according to claim 1-6 any one of them can folding deform multifunctional wheelchair, which is characterized in that
Safety belt is both provided on the top of the back leg and seat board frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188024.2A CN108186218A (en) | 2018-03-07 | 2018-03-07 | It is a kind of can folding deformation multifunctional wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810188024.2A CN108186218A (en) | 2018-03-07 | 2018-03-07 | It is a kind of can folding deformation multifunctional wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108186218A true CN108186218A (en) | 2018-06-22 |
Family
ID=62594737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810188024.2A Pending CN108186218A (en) | 2018-03-07 | 2018-03-07 | It is a kind of can folding deformation multifunctional wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108186218A (en) |
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| CN109124909A (en) * | 2018-09-20 | 2019-01-04 | 佛山科学技术学院 | A kind of improved wheelchair |
| CN109568040A (en) * | 2018-12-25 | 2019-04-05 | 捷和电机（江西）有限公司 | Folding wheel chair vehicle |
| CN113693837A (en) * | 2021-09-01 | 2021-11-26 | 沈阳捷通消防车有限公司 | Transfer equipment and vehicle with same |
| TWI756698B (en) * | 2020-05-28 | 2022-03-01 | 國立陽明交通大學 | Multi-posture assistive device |
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