CN104758126B - Multifunctional wheelchair - Google Patents
Multifunctional wheelchair Download PDFInfo
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- CN104758126B CN104758126B CN201510196536.XA CN201510196536A CN104758126B CN 104758126 B CN104758126 B CN 104758126B CN 201510196536 A CN201510196536 A CN 201510196536A CN 104758126 B CN104758126 B CN 104758126B
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Abstract
The invention discloses a multifunctional wheelchair. The multifunctional wheelchair comprises an base plate support, a seat and a backrest, wherein the base plate support is composed of two first supporting rods, four first connecting rods, two first hinging pin shafts, a pull rod and a push-pull handle in a connected mode, the seat is composed of two second supporting rods, two seat plates, a second hinging pin shaft and a lifting handle in a connected mode, the second supporting rods are connected to the upper sides of the first supporting rods, a first support and a second support are fixed to the rear end and front end of each first supporting rod, a supporting shaft is arranged on each first support, a rear bull wheel is installed on each supporting shaft, and a front small wheel is installed on the lower side of each second support; the backrest is composed of two supporting pillars and a flexible back cushion in a connected mode, the lower ends of the two supporting pillars are connected to the rear portions of the two first supporting rods respectively, two handles are connected to the upper rear portions of the two supporting pillars, a foot stool is connected to the front end of each second supporting rod, and a handrail is connected to the middle of each second supporting rod. The multifunctional wheelchair is foldable, convenient to transport, and high in using reliability and comfort level.
Description
Technical field
The present invention relates to wheelchair manufacturing technology field, especially a kind of multifunctional wheelchair.
Background technology
Wheelchair be a kind of for disabled and the walking-replacing tool that uses of old people, traditional wheelchair is on the one hand no
Method folds, and takes up room big, not readily transportable and packaging；On the other hand, the angle of seat support and backrest is difficult to adjust, using comfortable
Property is not ideal enough.
On December 03rd, 2014 discloses Patent No. zl 201420369688. 6, entitled " one kind is new to roll over
Folded wheelchair ", it includes medicated cushion, and medicated cushion connects rear backrest, and the side of rear backrest is provided with folding rod, the opposite side peace of the rear side back of the body
Equipped with handrail, the centre of folding rod is provided with rotary shaft, and the both sides of medicated cushion are mounted on runner, and the outer ring of runner is provided with handss
Help circle, the side of hand rim is provided with the brake switch being easy to control stroke.The folding of this wheelchair and open and use trip shaft
It is controlled, improves the flexible performance of wheelchair use, when carrying, reduce the space that wheelchair takies, facilitate transport,
But its whole supporting construction is more thin, and the reliability of use is relatively low.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of multifunctional wheelchair, foldable, convenient transport, the reliability of use
Property and comfortableness are preferable.
For reaching above-mentioned purpose, the technical scheme is that a kind of multifunctional wheelchair, including chassis overhang, seat support, lean on
The back of the body, seat support is connected to above chassis overhang, and backrest is connected to the upper back of chassis overhang, and described chassis overhang includes two puts down
The first support bar of row, two first support bars are connected by four first connecting rods, every first support bar and two first
One end of connecting rod is hinged, and the other end of four first connecting rods is hinged by first hinging pin shaft two-by-two, a pull bar
Two ends be hinged with two first hinging pin shafts simultaneously, wherein one first hinging pin shaft is also connected with one and draws pushing handle；
Described seat support includes two parallel second support bars and two chair seat boards, and the side of each chair seat board is hinged on one
In root second support bar, the opposite side of two chair seat boards is hinged by the second hinging pin shaft, and two second support bars are respectively
It is connected to above two first support bars, an also hinged handle on described second hinging pin shaft, can be embedded in it during handle upset
In on a chair seat board；
The rear end of every first support bar is fixed with the first bearing, and the first bearing is fixed with cross-brace axle, cross-brace
Rear bull wheel is provided with axle, every first support bar be fixedly arranged at the front end with the second bearing, the second bearing following equipped with front steamboat；
Described backrest includes two support columns, after the lower end of two support columns is connected to two first support bars
Portion, is connected with soft back cushion between two support columns, the upper back of two support columns connects two handles；
Every second support bar be fixedly arranged at the front end with three abutments, three abutments are connected with dismountable foot rest, every
Second support bar be fixedly arranged in the middle of the 4th bearing, equipped with handrail on the 4th bearing.
Improve further, built with the first gas spring, one end of the first gas spring is hinged on every described first support bar
The front portion of first support bar, the other end of the first gas spring and the lower end of an arc are hinged, and the top of arc is stretched out
First support bar is outer to be fixedly connected with a described second support bar rear end；Every described first support bar upper back is provided with a support
Projection, described support protrusion is hinged with a described second support bar rear lower.This structure is passed through to adjust the first gas spring,
The angle of seat support and backrest can together with adjust.
Improve further, the upper end of each arc is hinged with the lower end of a described support column, each arc
Top also extends back a supporting part, and equipped with the second gas spring on described support column, the upper end of the second gas spring is hinged on described
The top of support column, the lower end of the second gas spring and one end of a second connecting rod are hinged, and the other end of second connecting rod is hinged on
On described supporting part.This structure is passed through to adjust the second gas spring, and the angle of backrest can individually adjust.
Improve further, piece orientable first rotating shaft of pivot joint on each described first bearing, first rotating shaft tilts to set
Put, the connected anti-tipping supporting leg in lower end of first rotating shaft.Turned after supporting leg, can prevent wheelchair from tumbling backward, improve
Safety in utilization.
Preferably described foot rest passes through the first interlocking assembly and connects three abutments, and described first interlocking assembly includes a support
Frame, the top of the connected foot rest in top of bracing frame, three abutments are provided with a taper connection hole, and the bottom of bracing frame is provided with one
Tapered strut is matched with described taper connection hole, upper articulation one draw ring of bracing frame, and the upper articulation of a hook is supporting
The middle part of frame, the outside of three abutments is provided with the first locating slot, and the bottom of hook is provided with a hook end and described first locating slot phase
Cooperation, one end of a third connecting rod is hinged on draw ring, the other end is hinged on the bottom of hook, and one end of one first extension spring is connected
On draw ring, the other end be connected on bracing frame, described draw ring and the first extension spring drive hook to rotate by third connecting rod and make
The hook end of hook can snap in the first described locating slot or depart from the first described locating slot.By draw ring, the first extension spring and
Third connecting rod drives hook to rotate and realizes locking and unlock, and facilitates the installation and removal of foot rest.
Improve further, described taper connection hole and described first locating slot are vertically arranged, on described three abutments also
Matched with bracing frame in the locking positioning face that is provided with；It is also equipped with the hook end of a positioning block and described hook in described first locating slot
Match, locating piece is spun in the first adjustment bolt, described first adjustment bolt is connected in the way of the rotatable axial restraint of circumference
It is connected on described three abutments, rotation the first adjustment bolt makes described locating piece vertically move up and down.By locating piece and institute
State the cooperation of the hook end of hook, prevent the upper and lower play of foot rest, improve and connect stationarity.
Improve further, described 4th bearing is installed with an elevating lever, the upper end of elevating lever is connected handrail, elevating lever
Side multiple second locating slot of interval setting from top to bottom, can be inclined with respect to what the 4th bearing rotated equipped with one on the 4th bearing
Heart wheel, piece first bearing pin of pivot joint in the eccentric orfice of eccentric, the outer peripheral face of eccentric arranges a groove, the outer peripheral face of eccentric
Also extend one handle, the 4th bearing is also equipped with the locking pin being matched with the second locating slot on elevating lever, a fourth link
One end be stuck on the groove of eccentric and be connected with the first bearing pin, the other end of fourth link is flexibly connected locking pin push-and-pull
Locking pin is matched with the second locating slot on described elevating lever or departs from the second locating slot on elevating lever.This structure handrail
Height can facilitate high high adjustment, improve the comfortableness using, adapt to different people uses needs.
Improve further, the top of two described support columns is also associated with handle mechanism, and described handle mechanism includes a u shape
Handle, the two ends of handle are connected two sets second interlocking assembly, the top of every described support column fix the 5th bearing and
A set of second interlocking assembly matches, and the connecting end surface of each the 5th bearing is provided with the 3rd locating slot；Often cover the second interlocking group
Part includes pedestal, push rod, latch hook, and pedestal is affixed with handle, and it is the 3rd fixed that pedestal side is provided with positioning convex and the 5th bearing
Position groove matches, and the lower hinge of push rod in the bottom of pedestal and can carry out back rotation along hinged place, and the both sides of latch hook one end extend
Two hinged cylinders are hinged on the top of pedestal, and two hinged cylinders are cased with torsion spring, and one end of torsion spring is fixed on pedestal, separately
One end is stuck on latch hook, and the corresponding push rod side of latch hook is provided with the slot to make way matching with push rod, and the middle part both sides of push rod extend two
Individual push away post, described 5th bearing is additionally provided with draw-in groove and matches with latch hook, push rod near latch hook side rotate when, in push rod
Portion embeds the slot to make way of latch hook, and two in the middle part of push rod push away post and drive latch hook to overcome the torsion of torsion spring to rotate, and the hook end of latch hook is stretched
Go out pedestal to be stuck on the draw-in groove of the 5th bearing, to when rotating away from latch hook side, push rod departs from latch hook to push rod, and latch hook is turned round in torsion spring
Rotate backward under power effect, the hook end of latch hook goes back in pedestal；The top of push rod is also equipped with allowing push rod and pedestal to be mutually located
Keeper.Caregiver can be facilitated to promote wheelchair by handle mechanism.
Improve further, pivot joint one wheel hub on every cross-brace axle, bull wheel after wheel hub is connected, on every cross-brace axle
Match with described wheel hub equipped with linkage braking mechanism, described linkage braking mechanism includes one and is fixed on cross-brace axle and locates
Fixing positioning disk by wheel hub, second rotating shaft passes through positioning disk, and one end of two brake blocks is hinged on positioning disk, the
One end of two rotating shafts is fixed a slide block and is matched with the other end of two brake blocks, when the second rotating shaft drives slide block to rotate,
Slide block drives the inner surface that two brake blocks are fitted in wheel hub to realize brake, and the second rotating shaft drives when stirring block reset, two
Brake block rotates the inner surface departing from wheel hub under the second extension spring acts on；The described second rotating shaft other end is connected one first and drives
Bar, the middle part of a pedal rod is hinged on one end of the first drive rod；One installing plate, a drive are also fixed on described cross-brace axle
Moving frame is hinged on a mounting board, and one end of pedal rod is hinged on bogie, and bogie is fixed a locating dowel and pedal rod phase
Cooperation, bogie is also fixed a handle, and pedal rod drives bogie to rotate by locating dowel, and handle drives bogie and then drives
Moving frame drives pedal rod to rotate backward by locating dowel；Equipped with the 3rd extension spring between described bogie and described first drive rod.
Can make to take people by handle and pedal rod and ward can carry out brake operation, both convenient uses, improve again and use safety
Property.
Further improve, the described second rotating shaft other end is also connected the second drive rod, equipped with peace on the second drive rod
The connecting pin of dress brake cable, described installing plate is also equipped with and the fixing connector of thread end phase that brakes, each described handle
Bottom is provided with parking brake, and brake cable connects parking brake, described connecting pin and described connector, in described connecting pin and described connector
Between brake cable on be also cased with a reseting pressuring spring.By parking brake, brake cable, described connecting pin, described connector and the second drive
Lever realizes hand-operated brake, and linkage braking effect is more preferable.
The present invention, by drawing pushing handle, makes four first connecting rods cross connection dead point, lifts handle then up, to two
First support bar and/or second support bar apply to draw close power, just can conveniently be folded, instant packed and transport；Using shape
During state, four first connecting rods, the first hinging pin shaft, pull bar link together firm for two first support bars, and whole chassis is propped up
Frame is more firm, improves the reliability that wheelchair uses.
On the other hand, the present invention can also realize the angle adjustment of seat support, backrest, the height adjustment of handrail, the height of handle
Low-key is whole, realize linkage brake moreover it is possible to facilitate foot rest and the installation and removal of handle mechanism, realizes the variation of function, effectively
Improve the comfortableness using and convenience.
Brief description
Fig. 1 is axonometric chart of the present invention；
Fig. 2 is three-dimensional exploded view of the present invention；
Fig. 3 is that chassis overhang of the present invention, seat support and backrest are connected with each other axonometric chart；
Fig. 4 is the three-dimensional exploded view of Fig. 3；
Fig. 5 is the front view of the present invention the first interlocking assembly and three abutments connection status；
Fig. 6 is the top view of Fig. 5；
Fig. 7 is the a-a sectional view of Fig. 6；
Fig. 8 is present invention three abutments and the first adjustment bolt and locating piece is connected with each other axonometric chart；
Fig. 9 is second support bar of the present invention, the 4th bearing and handrail and elevating lever is connected with each other axonometric chart；
Figure 10 is the b direction view of Fig. 9；
Figure 11 is the c-c sectional view of Figure 10；
Figure 12 is enlarged drawing at the d of Figure 11；
Figure 13 is the present invention the 5th bearing axonometric chart；
Figure 14 is the axonometric chart that the present invention the 5th bearing connects handle mechanism；
Figure 15 is the top view of Figure 14；
Figure 16 is the e-e cutaway view Amplified image of Figure 15；
Figure 17 is the three-dimensional exploded view of the present invention the second interlocking assembly；
Figure 18 is that cross-brace axle of the present invention, rear bull wheel, wheel hub and linkage braking mechanism are connected with each other and link braking machine
Structure is in braking state front view；
Figure 19 is that cross-brace axle of the present invention, rear bull wheel, wheel hub and linkage braking mechanism are connected with each other and link braking machine
Structure is in relaxation state front view；
Figure 20 Figure 18 hides the rear perspective view of rear bull wheel and wheel hub；
Figure 21 Figure 18 hides the front perspective view of rear bull wheel and wheel hub；
Figure 22 is folded state axonometric chart of the present invention.
Specific embodiment
With specific embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.
Shown in Fig. 1 to Fig. 4, a kind of multifunctional wheelchair, including chassis overhang 10, seat support 20, backrest 30, seat support 20 is connected to
Above chassis overhang 10, backrest 30 is connected to the upper back of chassis overhang 10；
Described chassis overhang 10 includes two parallel first support bars 1, and two first support bars 1 pass through four first even
Bar 11 is connected, and every first support bar 1 is hinged with one end of two first connecting rods 11, the other end of four first connecting rods 11
It is hinged by first hinging pin shaft 12 two-by-two, the two ends of a pull bar 13 are mutually cut with scissors with two first hinging pin shafts 12 simultaneously
Connect, wherein one first hinging pin shaft 12 is also connected with one and draws pushing handle 14；
Described seat support 20 includes two parallel second support bars 2 and two chair seat boards 21, the side of each chair seat board 21
It is hinged in a second support bar 2, the opposite side of two chair seat boards 21 is hinged by the second hinging pin shaft 22, two
Two support bars 2 are connected to above two first support bars 1, an also hinged handle 23 on described second hinging pin shaft 22,
Can be embedded on one of chair seat board 21 during handle 23 upset；
Described backrest 30 includes two support columns 3, and the lower end of two support columns 3 is connected to two first support bars 1
Rear portion, be connected with soft back cushion 31 between two support columns 3, the upper back of two support columns 3 connects two handles 32；
The rear end of every first support bar 1 is fixed with the first bearing 15, and the first bearing 15 is fixed with cross-brace axle 40, horizontal
Rear bull wheel 50 is provided with support shaft 40, every first support bar 1 be fixedly arranged at the front end with the second bearing 16, the second bearing 16
Below equipped with front steamboat 60；
Every second support bar 2 be fixedly arranged at the front end with three abutments 24, three abutments 24 are connected with dismountable foot rest
70, every second support bar 2 be fixedly arranged in the middle of the 4th bearing 25, equipped with handrail 80 on the 4th bearing 25.
Built with the first gas spring 17, one end of the first gas spring 17 is hinged on first to every described first support bar 1
The front portion of strut 1, the other end of the first gas spring 17 and the lower end of an arc 18 are hinged, and the top of arc 18 is stretched out
First support bar 1 is outer to be fixedly connected with described second support bar 2 rear end, and the top of each arc 18 also extends forward one even
Socket part 181 is connected described second support bar 2, and each arc 18 is additionally provided with scale 182；After every described first support bar 1
Top is provided with a support protrusion 19, and described support protrusion 19 is hinged with described second support bar 2 rear lower；
The upper end of each arc 18 is hinged with the lower end of a described support column 3, and the top of each arc 18 is also
Extend back a supporting part 183, and equipped with the second gas spring 33 on described support column 3, the upper end of the second gas spring 33 is hinged on institute
State the top of support column 3, the lower end of the second gas spring 33 is hinged with one end of a second connecting rod 34, second connecting rod 34 another
End is hinged on described supporting part 183.
The orientable first rotating shaft 151 of pivot joint one on each described first bearing 15, first rotating shaft 151 is obliquely installed,
The connected anti-tipping supporting leg 152 in the lower end of first rotating shaft 151.Holding state can be formed when supporting leg 152 rotates backward, prevent
Only wheelchair tumble it is ensured that safety in utilization backward.
In conjunction with shown in Fig. 5 to Fig. 8, described foot rest 70 connects three abutments 24 by the first interlocking assembly 7, and described first
Interlocking assembly 7 includes a bracing frame 71, the top of the connected foot rest 70 in top of bracing frame 71, and three abutments 24 are provided with one
Taper connection hole 241, the bottom of bracing frame 71 is provided with a tapered strut 711 and is matched with described taper connection hole 241, bracing frame
71 upper articulation one draw ring 72, at the middle part of bracing frame 71, the outside of three abutments 24 is provided with the upper articulation of a hook 73
First locating slot 242, the bottom of hook 73 is provided with a hook end 731 and is matched with described first locating slot 242, a third connecting rod 74
One end be hinged on draw ring 72, the other end be hinged on hook 73 bottom, one end of first extension spring 75 is connected in draw ring
On 72, the other end be connected on bracing frame 71, described draw ring 72 and the first extension spring 75 are passed through third connecting rod 74 and are driven 73 turns of hook
The dynamic hook end 731 enabling hook 73 snaps in the first described locating slot 242 or departs from the first described locating slot 242；Hang
The hook end 731 of hook 73 is in the lock state when snapping in the first described locating slot 242, the first interlocking assembly 7 and three abutments 24
Can not separate, the hook end 731 of hook 73 is in released state when departing from the first described locating slot 242, the first interlocking assembly 7 He
Three abutments 24 are separable, just can pull down foot rest；
Preferably described taper connection hole 241 and described first locating slot 242 are vertically arranged, on described three abutments 24 also
Matched with bracing frame 71 in the locking positioning face 243 that is provided with；Be also equipped with described first locating slot 242 a positioning block 76 with described
The hook end 731 of hook 73 matches, and locating piece 76 is spun in one first adjustment bolt 77, and described first adjustment bolt 77 is with circumference
The mode of rotatable axial restraint is connected on described three abutments 24, and rotation the first adjustment bolt 77 makes described locating piece 76 edge
Vertically move up and down；By locating piece 76, the hook end 731 of described hook 73 is carried out coordinating spacing, the upper of foot rest 70 can be prevented
Lower play, further ensures that the stability of connection；
Described foot rest 70 includes a vertically arranged support tube 701, and a fastener 702 is passed through admittedly in the top of support tube 701
The even top of support frame as described above 71, pedal 703 is installed in the bottom of support tube 701；The middle part of described support tube 701 is also equipped with one
By leg support 704.
In conjunction with shown in Fig. 9 to Figure 12, described 4th bearing 25 being installed with an elevating lever 8, the upper end of elevating lever 8 is connected
Handrail 80, side multiple second locating slot 81 of interval setting from top to bottom of elevating lever 8, can phase equipped with one on the 4th bearing 25
The eccentric 82 that 4th bearing 25 is rotated, piece first bearing pin 83 of pivot joint, eccentric 82 in the eccentric orfice 821 of eccentric 82
Outer peripheral face one groove 822 is set, the outer peripheral face of eccentric 82 also extends one handle 823, the 4th bearing 25 is also equipped with and rises
The locking pin 84 that the second locating slot 81 on fall bar 8 matches, one end of a fourth link 85 is stuck in the groove 822 of eccentric 82
Upper and connected with the first bearing pin 83, the other end of fourth link 85 is flexibly connected locking pin 84 Pushpulll locking pin 84 and elevating lever
The second locating slot 81 on 8 matches or departs from the second locating slot 81 on elevating lever 8；On locking pin 84 and elevating lever 8 the
When two locating slots 81 match, elevating lever 8 is locked out driving handrail 80 to move up and down, and locking pin 84 departs from elevating lever 8
The second locating slot 81 when, elevating lever 8 is in relaxation state and handrail 80 can be driven to move up and down, carry out handrail 80 height adjust
Whole；
The 4th described bearing 25 is provided with a contiguous block 251 and is matched with described eccentric 82, and contiguous block 251 is provided with
Semi-cylindrical groove is matched with the outer peripheral face of eccentric 82, and described fourth link 85 passes through this contiguous block 251, and contiguous block 251 leads to
Cross a lid 252 to be pressed on the 4th bearing 25；
Described locking pin 84 one end of matching with the second locating slot 81 on elevating lever 8 is provided with a shoulder, and locking pin 84 covers
There is a spring 86, one end of spring 86 is connected on this shoulder, the other end is connected on described contiguous block 251；
Described second locating slot 81 is arcuate groove, and described locking pin 84 is matched with described second locating slot 81 end of one end
Portion is hemispherical projections；
Described locking pin 84 one end that is connected with described fourth link 85 is provided with hemisphere face groove, described fourth link 85 with
Described locking pin 84 one end that is connected is provided with hemispherical projections；
It is additionally provided with rule 87 on described elevating lever 8.
In conjunction with shown in Figure 13 to Figure 17, the top of two described support columns 3 is also associated with handle mechanism 90, described handle
Mechanism 90 includes the handle 901 of a u shape, and the two ends of handle 901 are connected two set of second interlocking assembly 9, every described support column 3
Top is fixed the 5th bearing 35 and is matched with a set of second interlocking assembly 9, and the connecting end surface of each the 5th bearing 35 sets
There is the 3rd locating slot 351；Often cover the second interlocking assembly 9 and include pedestal 91, push rod 92, latch hook 93, pedestal 91 is solid with handle 901
Connect, pedestal 91 side is provided with positioning convex 911 and is matched with the 3rd locating slot 351 on the 5th bearing 35, the bottom of push rod 92
It is hinged on the bottom of pedestal 91 and back rotation can be carried out along hinged place, the both sides of latch hook 93 one end extend two hinged cylinders 931 and cut with scissors
It is connected on the top of pedestal 91, two hinged cylinders 931 are cased with torsion spring 94, one end of torsion spring 94 is fixed on pedestal 91, another
End is stuck on latch hook 93, and corresponding push rod 92 side of latch hook 93 is provided with the slot to make way 932 matching with push rod 92, the middle part of push rod 92
Both sides extend two and push away post 921, described 5th bearing 35 is additionally provided with draw-in groove 352 and matches with latch hook 93, and push rod 92 is to close
When latch hook 93 side rotates, the middle part of push rod 92 embeds the slot to make way 932 of latch hook 93, and two of push rod 92 middle part push away post 921 and drive
Moveable lock hook 93 overcomes the torsion of torsion spring 94 to rotate, and the hook end of latch hook 93 is stretched out pedestal 91 and is stuck on the draw-in groove 352 of the 5th bearing 35,
To when rotating away from latch hook 93 side, push rod 92 departs from latch hook 93 to push rod 92, and latch hook 93 reversely turns under torsion spring 94 twisting force
Dynamic, the hook end of latch hook 93 goes back in pedestal 91；The top of push rod 92 is also equipped with the positioning allowing push rod 92 to be mutually located with pedestal 91
Part 95；The hook end of latch hook 93 is stretched out when pedestal 91 is stuck on the draw-in groove 352 of the 5th bearing 35 and is in the lock state, and handle 901 is no
Method is pulled down, and is in released state when the hook end of latch hook 93 goes back in pedestal 91, handle 901 and the second interlocking assembly 9 can be from
Pull down on five bearings 35.
Optimize structure further, two parallel bearing blocks 912 of setting, the bottom of push rod 92 and latch hook in described pedestal 91
Two on 93 hinged cylinders 931 are all hinged on two bearing blocks 912；
Described pedestal 91 also includes an end cap 913, and end cap 913 bolt lock is connected on pedestal 91, and pedestal 91 is provided with one
Affixed through hole 914 is plugged with the end of handle 901；
Described pedestal 91 lower hinge operates a switch 96, described operate a switch 96 for control be loaded on described support column switch
Part 36, controls the first gas spring 17 and the second gas spring 33 by switch member 36, adjusts described seat support 20 and described leans on to facilitate
The angle of the back of the body 30；
Also spin on described 5th bearing 35 adjusting screw 353, and adjusting screw 353 stretches into the draw-in groove on the 5th bearing 35
352 are matched with the hook end of latch hook 93；
Preferably described keeper 95 is a lock bolt, and keeper 95 is enclosed within push rod 92 top and can move up and down along push rod 92, seat
Body 91 is provided with the lock slots 915 matching with keeper 95, and this lock slots 915 may be provided on end cap 913；Described push rod 92
Upper end is connected a handle 97, the push rod 92 between handle 97 and keeper 95 is also cased with spring 98, under described keeper 95
Portion is provided with a convex hook 951 and is matched with described lock slots 915.
In conjunction with shown in Figure 18 to Figure 21, pivot joint one wheel hub 5 on every cross-brace axle 40, wheel hub 5 be connected after bull wheel 50,
Match with described wheel hub 5 equipped with linkage braking mechanism 400 on every cross-brace axle 40, described linkage braking mechanism 400 wraps
Include one and be fixed on cross-brace axle 40 and be in the other fixing positioning disk 4 of wheel hub 5, second rotating shaft 41 passes through positioning disk 4,
One end of two brake blocks 42 is hinged on positioning disk 4, and a slide block 43 and two brake blocks are fixed in one end of the second rotating shaft 41
42 other end matches, and when the second rotating shaft 41 drives slide block 43 to rotate, slide block 43 drives two brake blocks 42 to be fitted in
The inner surface of wheel hub 5 realizes brake, and when the second rotating shaft 41 drives slide block 43 to reset, two brake blocks 42 are made in the second extension spring 44
With the lower inner surface rotating and departing from wheel hub 5；
Described second rotating shaft 41 other end is connected first drive rod 45, and the middle part of a pedal rod 46 is hinged on the first drive
One end of lever 45；
One installing plate 411 is also fixed on described cross-brace axle 40, installing plate 411 and positioning disk 4 also can be connected,
One bogie 47 is hinged on installing plate 411, and one end of pedal rod 46 is hinged on bogie 47, fixing certain on bogie 47
Position post 471 is matched with pedal rod 46, and bogie 47 is also fixed a handle 48, and pedal rod 46 passes through locating dowel 471 and drives drive
Moving frame 47 rotates, and then bogie 47 drives pedal rod 46 to rotate backward by locating dowel 471 to handle 48 drive bogie 47；
Equipped with the 3rd extension spring 472 between described bogie 47 and described first drive rod 45；
Also be connected on described second rotating shaft 41 other end the second drive rod 49, equipped with installation brake cable on the second drive rod 49
491 connecting pin 492, described installing plate 411 is also equipped with the connector 493 fixing with brake cable 491 end phase, described in each
The bottom of handle 32 is provided with parking brake 321, and brake cable 491 connects parking brake 321, described connecting pin 492 and described connector 493,
Reseting pressuring spring also can be cased with the brake cable 491 between described connecting pin 492 and described connector 493；
Described first drive rod 45 is rotary with the second adjustment bolt 451, the second adjustment bolt 451 away from one end of pedal rod 46
One end withstand on described second drive rod 49.
When step on pedal rod 46 or be pressed downward shaking hands 48 when, the second rotating shaft 41 drives slide block 43 when rotating clockwise, and dials
Motion block 43 drives the inner surface that two brake blocks 42 are fitted in wheel hub 5 to realize brake, as shown in figure 18；When pulling up pedal rod 46
Or when pulling up handle 48, when the second rotating shaft 41 drives slide block 43 to reset, rear bull wheel 50 is at relaxation state, such as Figure 19
Shown.
In addition, each handle 32 can be worn being connected on the 6th bearing 37 being fixed on described support column 3 rear portion, by handle
Setting locating slot and the high high adjustment realizing handle 32 in the 6th bearing 37 installation lock-connecting piece on 32；In described second support bar 2
Can beyond pipe and interior tubule greatly mutually be socketed to form, the affixed three abutments 24 of interior tubule, such foot rest 70 just can before and after regulation position
Put.
Shown in Figure 22, when needing to fold, pull back and draw pushing handle 14, make four first connecting rods 11 cross connection dead point,
Lift handle 23 then up, apply to draw close power so that it may form in figure to two first support bars 1 and/or second support bar 2
Folded state, instant packed and transport.
The above is only one preferred embodiment of the present invention, those skilled in the art presses claim and makees equivalent change
Both fall within the protection domain of this case.
Claims (9)
1. a kind of multifunctional wheelchair, including chassis overhang, seat support, backrest, seat support is connected to above chassis overhang, and backrest connects
In the upper back of chassis overhang it is characterised in that:
Described chassis overhang includes two parallel first support bars, and two first support bars are passed through four first connecting rods and are connected
Connect, every first support bar is hinged with one end of two first connecting rods, the other end of four first connecting rods passes through one two-by-two
First hinging pin shaft is hinged, and the two ends of a pull bar are hinged with two first hinging pin shafts simultaneously, wherein one first hinge
Pin axle is also connected with one and draws pushing handle；
Described seat support includes two parallel second support bars and two chair seat boards, and the side of each chair seat board is hinged on one
On two support bars, the opposite side of two chair seat boards is hinged by the second hinging pin shaft, and two second support bars connect respectively
Above two first support bars, an also hinged handle on described second hinging pin shaft, wherein one can be embedded in during handle upset
On individual chair seat board；
The rear end of every first support bar is fixed with the first bearing, and the first bearing is fixed with cross-brace axle, on cross-brace axle
Rear bull wheel is installed, every first support bar be fixedly arranged at the front end with the second bearing, the second bearing following equipped with front steamboat；
Described backrest includes two support columns, and the lower end of two support columns is connected to the rear portion of two first support bars, and two
It is connected with soft back cushion, the upper back of two support columns connects two handles between root support column；
Every second support bar be fixedly arranged at the front end with three abutments, three abutments are connected with dismountable foot rest, every second
Support bar be fixedly arranged in the middle of the 4th bearing, equipped with handrail on the 4th bearing；
Pivot joint one wheel hub on every cross-brace axle, bull wheel after wheel hub is connected, equipped with linkage braking machine on every cross-brace axle
Structure is matched with described wheel hub, and described linkage braking mechanism includes one and is fixed on cross-brace axle and is in what wheel hub side was fixed
Positioning disk, second rotating shaft passes through positioning disk, and one end of two brake blocks is hinged on positioning disk, and one end of the second rotating shaft is solid
A fixed slide block is matched with the other end of two brake blocks, and when the second rotating shaft drives slide block to rotate, slide block drives two
The inner surface that brake block is fitted in wheel hub realizes brake, and the second rotating shaft drives when stirring block reset, and two brake blocks draw second
Spring effect is lower to rotate the inner surface departing from wheel hub；Described second the rotating shaft other end be connected first drive rod, a pedal rod
Middle part is hinged on one end of the first drive rod；One installing plate is also fixed on described cross-brace axle, a bogie is hinged on peace
On dress plate, one end of pedal rod is hinged on bogie, bogie is fixed a locating dowel and matches with pedal rod, on bogie
Also fix a handle, pedal rod drives bogie to rotate by locating dowel, handle drives bogie and then bogie passes through positioning
Post drives pedal rod to rotate backward；Equipped with the 3rd extension spring between described bogie and described first drive rod.
2. a kind of multifunctional wheelchair according to claim 1 it is characterised in that: every described first support bar is built with
One gas spring, one end of the first gas spring is hinged on the front portion of first support bar, the other end of the first gas spring and an arc
The lower end of plate is hinged, and the top of arc is stretched out and is fixedly connected with a described second support bar rear end outside first support bar；Often
First support bar upper back described in root is provided with a support protrusion, described support protrusion and a described second support bar rear lower phase
Hinged.
3. a kind of multifunctional wheelchair according to claim 1 it is characterised in that: the upper end of each arc with one described in
The lower end of support column is hinged, and the top of each arc also extends back a supporting part, equipped with the second gas on described support column
Spring, the upper end of the second gas spring is hinged on the top of described support column, the lower end of the second gas spring and the one of a second connecting rod
End is hinged, and the other end of second connecting rod is hinged on described supporting part.
4. a kind of multifunctional wheelchair according to claim 1 it is characterised in that: pivot joint one on each described first bearing
Orientable first rotating shaft, first rotating shaft is obliquely installed, the connected anti-tipping supporting leg in lower end of first rotating shaft.
5. a kind of multifunctional wheelchair according to claim 1 it is characterised in that: described foot rest passes through the first interlocking assembly even
Connect three abutments, described first interlocking assembly includes a bracing frame, the top of the connected foot rest in top of bracing frame, three abutments
It is provided with a taper connection hole, the bottom of bracing frame is provided with a tapered strut and is matched with described taper connection hole, bracing frame
Upper articulation one draw ring, one hook upper articulation at the middle part of bracing frame, the outside of three abutments is provided with the first locating slot,
The bottom of hook is provided with a hook end and is matched with described first locating slot, and one end of a third connecting rod is hinged on draw ring, another
End is hinged on the bottom of hook, and one end of one first extension spring is connected on draw ring, the other end is connected on bracing frame, described draw ring
Driving hook to rotate with the first extension spring by third connecting rod enables the hook end linked up with to snap in the first described locating slot or de-
From the first described locating slot.
6. a kind of multifunctional wheelchair according to claim 5 it is characterised in that: described taper connection hole and described first fixed
Position groove is vertically arranged, and is matched with bracing frame in a locking positioning face that described three abutments are additionally provided with；Described first locating slot
In be also equipped with a positioning block and match with the hook end of described hook, locating piece is spun in the first adjustment bolt, described first adjustment
Bolt is connected on described three abutments in the way of the rotatable axial restraint of circumference, and rotation the first adjustment bolt makes described positioning
Block vertically moves up and down.
7. a kind of multifunctional wheelchair according to claim 1 it is characterised in that: a lifting is installed with described 4th bearing
Bar, the connected handrail in upper end of elevating lever, side multiple second locating slot of interval setting from top to bottom of elevating lever, on the 4th bearing
Equipped with an eccentric that can rotate with respect to the 4th bearing, piece first bearing pin of pivot joint, eccentric in the eccentric orfice of eccentric
Outer peripheral face one groove is set, the outer peripheral face of eccentric also extends one handle, the 4th bearing is also equipped with and the on elevating lever
The locking pin that two locating slots match, one end of a fourth link is stuck on the groove of eccentric and is connected with the first bearing pin, the
The other end of double leval jib is flexibly connected locking pin and Pushpulll locking pin is matched with the second locating slot on described elevating lever or de-
The second locating slot on elevating lever.
8. a kind of multifunctional wheelchair according to claim 1 it is characterised in that: the top of two described support columns is also connected with
There is handle mechanism, described handle mechanism includes the handle of a u shape, the connected two set of second interlocking assembly in two ends of handle, every institute
The top stating support column is fixed the 5th bearing and is matched with a set of second interlocking assembly, the connecting end surface of each the 5th bearing
It is provided with the 3rd locating slot；Often cover the second interlocking assembly and include pedestal, push rod, latch hook, pedestal is affixed with handle, and pedestal side sets
Positioning convex is had to match with the 3rd locating slot on the 5th bearing, the lower hinge of push rod is in the bottom of pedestal and can be along hinged
Place carrys out back rotation, and the both sides of latch hook one end extend the top that two hinged cylinders are hinged on pedestal, two hinged cylinders are cased with
Torsion spring, one end of torsion spring is fixed on pedestal, the other end is stuck on latch hook, and the corresponding push rod side of latch hook is provided with is matched with push rod
Slot to make way, the middle part both sides of push rod are extended two and push away post, described 5th bearing is additionally provided with draw-in groove and is matched with latch hook, push rod
To when rotating near latch hook side, the middle part of push rod embeds the slot to make way of latch hook, and two in the middle part of push rod push away post and drive latch hook gram
The torsion taking torsion spring rotates, and the hook end of latch hook is stretched out pedestal and is stuck on the draw-in groove of the 5th bearing, and push rod turns to away from latch hook side
When dynamic, push rod departs from latch hook, and latch hook rotates backward under torsion spring twisting force, and the hook end of latch hook goes back in pedestal；Push rod upper
Portion is also equipped with the keeper allowing push rod and pedestal to be mutually located.
9. a kind of multifunctional wheelchair according to claim 1 it is characterised in that: also connected on the described second rotating shaft other end
Second drive rod, equipped with the connecting pin installing brake cable on the second drive rod, described installing plate is also equipped with and brakes thread end
The connector mutually fixed, the bottom of each described handle is provided with parking brake, and brake cable connects parking brake, described connecting pin and described company
Fitting, the brake cable between described connecting pin and described connector is also cased with a reseting pressuring spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510196536.XA CN104758126B (en) | 2015-04-23 | 2015-04-23 | Multifunctional wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510196536.XA CN104758126B (en) | 2015-04-23 | 2015-04-23 | Multifunctional wheelchair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104758126A CN104758126A (en) | 2015-07-08 |
| CN104758126B true CN104758126B (en) | 2017-01-25 |
Family
ID=53640467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510196536.XA Active CN104758126B (en) | 2015-04-23 | 2015-04-23 | Multifunctional wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104758126B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015034371A1 (en) * | 2013-09-06 | 2015-03-12 | Alu Rehab As | Detachable tie bar of a wheelchair and tilting device for the seat of a wheelchair |
| CN105147472A (en) * | 2015-09-07 | 2015-12-16 | 太仓市中峰模具塑胶有限公司 | Quick lifting and dismantling structure of wheelchair armrest |
| CN106726213B (en) * | 2017-03-13 | 2018-06-22 | 安维车件(厦门)有限公司 | It is a kind of to two foot pedals to lock foldable on lock construction and wheelchair |
| CN109512591B (en) * | 2017-09-19 | 2024-04-02 | 常州市凯盛机械配件有限公司 | Wheelchair travelling crane taking electric balance car as driving force |
| CN108578090B (en) * | 2018-03-13 | 2023-12-15 | 安徽龙顺交通器材有限公司 | Intelligent push chair |
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|---|---|---|---|---|
| US5217239A (en) * | 1989-01-20 | 1993-06-08 | Linido B.V. | Wheelchair |
| CN201510447U (en) * | 2009-09-30 | 2010-06-23 | 安维车件(厦门)有限公司 | Wheelchair footrest for disabled people |
| CN201921021U (en) * | 2010-12-28 | 2011-08-10 | 卫美恒(苏州)医疗器械有限公司 | Wheelchair for preventing back rolling |
| CN201949238U (en) * | 2010-12-21 | 2011-08-31 | 安维车件(厦门)有限公司 | Wheel chair with power drive device |
| CN204121300U (en) * | 2014-09-26 | 2015-01-28 | 广东凯洋医疗科技集团有限公司 | A kind of lavatory chair form electric wheel-chair vehicle |
| CN204600933U (en) * | 2015-04-23 | 2015-09-02 | 安维车件(厦门)有限公司 | A kind of multifunctional wheelchair |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3041446A4 (en) * | 2013-09-06 | 2017-08-23 | Alu Rehab As | Folding mechanism for a folding wheelchair, backrest post for wheelchair and wheelchair |
| WO2015034371A1 (en) * | 2013-09-06 | 2015-03-12 | Alu Rehab As | Detachable tie bar of a wheelchair and tilting device for the seat of a wheelchair |
-
2015
- 2015-04-23 CN CN201510196536.XA patent/CN104758126B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5217239A (en) * | 1989-01-20 | 1993-06-08 | Linido B.V. | Wheelchair |
| CN201510447U (en) * | 2009-09-30 | 2010-06-23 | 安维车件(厦门)有限公司 | Wheelchair footrest for disabled people |
| CN201949238U (en) * | 2010-12-21 | 2011-08-31 | 安维车件(厦门)有限公司 | Wheel chair with power drive device |
| CN201921021U (en) * | 2010-12-28 | 2011-08-10 | 卫美恒(苏州)医疗器械有限公司 | Wheelchair for preventing back rolling |
| CN204121300U (en) * | 2014-09-26 | 2015-01-28 | 广东凯洋医疗科技集团有限公司 | A kind of lavatory chair form electric wheel-chair vehicle |
| CN204600933U (en) * | 2015-04-23 | 2015-09-02 | 安维车件(厦门)有限公司 | A kind of multifunctional wheelchair |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104758126A (en) | 2015-07-08 |
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