CN107137185A - Folding wheel chair and its locking device - Google Patents
Folding wheel chair and its locking device Download PDFInfo
- Publication number
- CN107137185A CN107137185A CN201710405831.0A CN201710405831A CN107137185A CN 107137185 A CN107137185 A CN 107137185A CN 201710405831 A CN201710405831 A CN 201710405831A CN 107137185 A CN107137185 A CN 107137185A
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- CN
- China
- Prior art keywords
- alignment pin
- wheel
- hinged
- lock cylinder
- moving spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
- A61G5/041—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven having a specific drive-type
- A61G5/042—Front wheel drive
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- 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
- A61G5/0808—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs foldable characterised by a particular folding direction
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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)
- Motorcycle And Bicycle Frame (AREA)
Abstract
The invention provides a kind of folding wheel chair and its locking device, belong to field of vehicles, seat frame is hinged on back rest, one end of seat frame and rear wheel fulcrum bar is hinged, and sliding shoe is sliding combined with rear wheel fulcrum bar, seat frame and one end of front-wheel pole are hinged, also there is front-wheel connecting rod between sliding shoe and front-wheel pole, the lower end of sliding shoe and back rest is hinged, lock cylinder is fixed on back rest bottom, alignment pin and back-moving spring are in lock cylinder, back-moving spring is enclosed on the periphery of alignment pin, one end of back-moving spring and one end of lock cylinder offset, the other end of back-moving spring offsets with alignment pin or the locating part being fixed on alignment pin, one end of lock cylinder has guide hole, the guide hole of lock cylinder is stretched out in one end of alignment pin, there is the positioning hole with alignment pin corresponding matching on rear wheel fulcrum bar, one end of alignment pin is fixedly connected with one end of drawstring.The folding wheel chair that the present invention is provided packs up rear small volume, and folds very convenient.
Description
Technical field
The present invention relates to technical field of transportation means, in particular to a kind of folding wheel chair and its locking device.
Background technology
Current people using electric wheel-chair vehicle and wheel-chair etc. it is various help the handicapped people to be moved easily, activity is set
It is standby, although general wheel-chair can not be folded there is provided the convenience in user's progress, when movable over long distances when it is used
Fold, so that wheel-chair when not in use, occupies sizable space, cause to transport and store great not convenient property.
Although wheel-chair is designed as assembling and dismantling structure by someone, so that wheel-chair will can be received after wheel-chair disassembling suitably when not in use
Close, to reduce wheel-chair space-consuming, but the fairly time consuming inconvenience during assembling and dismantling, so that existing wheel-chair is still deposited in folding
There is sizable room for improvement.
The content of the invention
The invention provides a kind of locking device, it is intended to solves the wheel-chair that reinforcer is present in the prior art and folds not side
Just the problem of.
The invention provides a kind of folding wheel chair, it is intended to solves the wheel-chair that reinforcer is present in the prior art and folds not
It is convenient, and space-consuming it is larger the problem of.
A kind of locking device, its improvement is：
A including alignment pin, back-moving spring and lock cylinder, the alignment pin and the back-moving spring are mounted in the lock cylinder,
The back-moving spring is enclosed on the periphery of alignment pin, and one end of the back-moving spring and one end of the lock cylinder offset, described to reset
The other end of spring offsets with the alignment pin or the locating part being fixed on the alignment pin, and one end of the lock cylinder, which has, leads
The guide hole of the lock cylinder is stretched out in hole, one end of the alignment pin；
B, one end of the alignment pin are fixedly connected with one end of drawstring.
In the above-mentioned technical solutions, the other end of the drawstring is fixedly connected with pulling block.
In the above-mentioned technical solutions, the other end of the drawstring is fixedly connected with grasping piece.
The present invention another technical scheme be：A kind of folding wheel chair, with back rest, seat frame, front-wheel pole, preceding
Wheel assembly, rear wheel fulcrum bar and wheel assembly, the seat frame are hinged on back rest, and its improvement is：
A, one end of the seat frame and the rear wheel fulcrum bar are hinged, and sliding shoe, institute are sliding combined with rear wheel fulcrum bar
State seat frame and one end of the front-wheel pole be hinged, also there is front-wheel connecting rod between the sliding shoe and the front-wheel pole,
One end of the front-wheel connecting rod is hinged on front-wheel pole, and the other end is hinged on sliding shoe；
B, the sliding shoe and back rest lower end are hinged；
C, also there is locking device, the locking device includes alignment pin, back-moving spring and lock cylinder, and the lock cylinder is fixed on
Back rest bottom, the alignment pin and the back-moving spring are in the lock cylinder, and the back-moving spring is enclosed on alignment pin
Periphery, one end of the back-moving spring and one end of the lock cylinder offset, the other end of the back-moving spring and the alignment pin
Or the locating part being fixed on the alignment pin offsets, one end of the lock cylinder has guide hole, and one end of the alignment pin is stretched out
There is the positioning hole with the alignment pin corresponding matching on the guide hole of the lock cylinder, the rear wheel fulcrum bar；
D, one end of the alignment pin are fixedly connected with one end of drawstring.
In the above-mentioned technical solutions, the other end of the drawstring is fixedly connected with pulling block, and the pulling block is arranged on described lean on
In backrest.
In the above-mentioned technical solutions, the other end of the drawstring stretches out the inner chamber of back rest and is fixedly connected with grasping piece,
The drawstring is located in the inner chamber of back rest.
In the above-mentioned technical solutions, the front component is fixedly connected on the other end of the front-wheel pole, the trailing wheel
Component is fixedly connected on the other end of the rear wheel fulcrum bar.
In the above-mentioned technical solutions, two middle side parts of the seat frame are respectively provided with hinge stent, one end of the front-wheel pole
One end with the rear wheel fulcrum bar is hinged on the hinge stent.
In the above-mentioned technical solutions, also there is handrail, the handrail is hinged on back rest, and described on the back rest
Also there is handrail pole between handrail and the seat frame, one end of the handrail pole is hinged on the handrail, described
The other end of handrail pole is hinged on the seat frame.
In the above-mentioned technical solutions, electric drive drive disk assembly, the electric drive driving section are fitted with the front component
Part is connected with the front wheel drive, and the electric drive drive disk assembly is electrically connected with the electric controller that the handrail is provided with.
The beneficial effects of the invention are as follows：
The locking device that is obtained by above-mentioned design of the present invention, only needs to pull drawstring i.e. using after on folding wheel chair
The control to locking device can be achieved, it is very convenient.
The folding wheel chair that the present invention is obtained by above-mentioned design, easily can be folded to wheel-chair, and
The space of wheel-chair occupancy can be greatly reduced.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of embodiment of the present invention, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not to be seen as
It is the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other related accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the schematic perspective view of folding wheel chair in the present invention；
Fig. 2 is the schematic front view of folding wheel chair in the present invention；
Fig. 3 is view of the folding wheel chair during packing up in the present invention；
Fig. 4 is the view after folding wheel chair is packed up in the present invention；
Fig. 5 is Fig. 2 partial schematic sectional view；
Fig. 6 is the locking state schematic diagram that locking device uses pulling block embodiment in the present invention；
Fig. 7 is the relieving view that locking device uses pulling block embodiment in the present invention.
Icon：100- back rests；200- seat frames；210- hinge stents；310- front-wheel poles；320- front components；321-
Electric drive drive disk assembly；330- front-wheel connecting rods；410- rear wheel fulcrum bars；411- positioning holes；420- wheel assemblies；500- handrails；
510- handrail poles；600- sliding shoes；700- locking devices；710- alignment pins；711- drawstrings；720- back-moving springs；730- locks
Cylinder；731- guide holes；800- pulling blocks；810- rope races.
Embodiment
To make the purpose, technical scheme and advantage of embodiment of the present invention clearer, below in conjunction with present invention implementation
Accompanying drawing in mode, the technical scheme in embodiment of the present invention is clearly and completely described, it is clear that described reality
The mode of applying is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention
The scope of protection.Therefore, the detailed description of embodiments of the present invention below to providing in the accompanying drawings, which is not intended to limit, wants
The scope of the present invention of protection is sought, but is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention,
The every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, belongs to this
Invent the scope of protection.
In the description of the invention, it is to be understood that the term of indicating position or position relationship is based on shown in accompanying drawing
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than indicate or imply signified equipment
Or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected to by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with or below second feature
Directly contacted including the first and second features, can also include the first and second features not be direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above to include fisrt feature special second
Directly over levying and oblique upper, or fisrt feature level height is merely representative of higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or are merely representative of fisrt feature level height
Less than second feature.
Embodiment one.
A kind of locking device 700, please participate in legend 1~8, including alignment pin 710, back-moving spring 720 and lock cylinder 730, fixed
Position pin 710 and back-moving spring 720 are in lock cylinder 730, and back-moving spring 720 is enclosed on the periphery of alignment pin 710, back-moving spring
720 one end and one end of lock cylinder 730 offset, and the other end of back-moving spring 720 and alignment pin 710 or are fixed on alignment pin 710
On locating part offset, one end of lock cylinder 730 has guide hole 731, and the guide hole 731 of lock cylinder 730 is stretched out in one end of alignment pin 710,
One end of alignment pin 710 is fixedly connected with drawstring 711.
Legend 8~11 is referred to, the other end of drawstring 711, which is fixedly connected with pulling block 800, pulling block 800, has two ropes
Road 810, one end of drawstring 711 has a knot, and drawstring 711 is stuck in the road of the rope race 810 of pulling block 800 through rope race 810 and knot
At mouthful.
The present embodiment provides locking device 700 when needing to decontrol, and the drop-down of pulling block 800 can be pulled into drawstring 711, drawstring
711 pull alignment pin 710, make at the positioning before the disengaging of alignment pin 710, you can the relieving to locking device 700 is realized, when not
When needing to decontrol, back-moving spring 720 promotes alignment pin 710 its reset is re-inserted at positioning in the presence of elastic force.
Embodiment two.
A kind of locking device 700, please participate in legend 1~8, including alignment pin 710, back-moving spring 720 and lock cylinder 730, fixed
Position pin 710 and back-moving spring 720 are in lock cylinder 730, and back-moving spring 720 is enclosed on the periphery of alignment pin 710, back-moving spring
720 one end and one end of lock cylinder 730 offset, and the other end of back-moving spring 720 and alignment pin 710 or are fixed on alignment pin 710
On locating part offset, one end of lock cylinder 730 has guide hole 731, and the guide hole 731 of lock cylinder 730 is stretched out in one end of alignment pin 710,
One end of alignment pin 710 is fixedly connected with drawstring 711.
The other end of drawstring 711 is fixedly connected with grasping piece, and grasping piece is draw ring and is used to pull two drawstrings simultaneously
711, so unlock locking device 700 and just more facilitate.
The present embodiment provides locking device 700 when needing to decontrol, and pulls grasping piece to pull drawstring 711, drawstring 711
Alignment pin 710 is pulled, is made at the positioning before the disengaging of alignment pin 710, you can realize the relieving to locking device 700, work as needs
During locking, back-moving spring 720 promotes alignment pin 710 its reset is re-inserted at positioning in the presence of elastic force, you can
Complete locking.
Embodiment three.
A kind of folding wheel chair, please join sketch map 1~5, with back rest 100, seat frame 200, front-wheel pole 310, front-wheel
Component 320, rear wheel fulcrum bar 410 and wheel assembly 420, seat frame 200 are hinged on back rest 100, seat frame 200 and trailing wheel branch
One end of bar 410 is hinged, and sliding shoe 600, seat frame 200 and front-wheel pole 310 are sliding combined with rear wheel fulcrum bar 410
One end is hinged, and also has front-wheel connecting rod 330 between sliding shoe 600 and front-wheel pole 310, one end of front-wheel connecting rod 330 is hinged on
On front-wheel pole 310, the other end is hinged on sliding shoe 600, and the lower end of sliding shoe 600 and back rest 100 is hinged.
Also there is locking device 700, locking device 700 is located at the bottom of back rest 100, and locking device 700 includes positioning
Pin 710, back-moving spring 720 and lock cylinder 730, lock cylinder 730 are fixed on the bottom of back rest 100, alignment pin 710 and back-moving spring 720
In lock cylinder 730, back-moving spring 720 is enclosed on the periphery of alignment pin 710, one end and the lock cylinder 730 of back-moving spring 720
One end offsets, and the other end and the alignment pin 710 or the locating part being fixed on alignment pin 710 of back-moving spring 720 offset, lock cylinder
730 one end has a guide hole 731, one end of alignment pin 710 stretch out have on the guide hole 731 of lock cylinder 730, rear wheel fulcrum bar 410 with
The positioning hole 411 of the corresponding matching of alignment pin 710, one end of alignment pin 710 is fixedly connected with drawstring 711.
Legend 8~11 is referred to, the other end of drawstring 711 is fixedly connected with pulling block 800, and pulling block 800 is arranged on back rest
On 100, there are two rope races 810 in pulling block 800, one end of drawstring 711 has knot, and drawstring 711 is through rope race 810 and restricts
Knot is stuck at the road junction of rope race 810 of pulling block 800.
When the present embodiment offer folding wheel chair needs to pack up, Fig. 2,3,4 are referred to, pulling block 800 is pulled down and then pulled
Drawstring 711, drawstring 711 pulls alignment pin 710, makes the positioning hole 411 before the disengaging of alignment pin 710, realizes to locking device
700 relieving, sliding shoe 600 can be moved freely on rear wheel fulcrum bar 410 after locking device 700 unclamps, then by sliding shoe
600 move down along rear wheel fulcrum bar 410, and now sliding shoe 600 drives the bottom for the back rest 100 being hinged with it to move down, backrest
Frame 100 and rear wheel fulcrum bar 410 are gradually drawn close to seat frame 200 to be packed up, and now front-wheel pole 310 is in front-wheel connecting rod 330
Seat frame 200 is close under drive backward, when back rest 100 and front-wheel pole 310 are fitted with seat frame 200, folds and completes.
Example IV.
A kind of folding wheel chair, please join sketch map 1~5, with back rest 100, seat frame 200, front-wheel pole 310, front-wheel
Component 320, rear wheel fulcrum bar 410 and wheel assembly 420, seat frame 200 are hinged on back rest 100, seat frame 200 and trailing wheel branch
One end of bar 410 is hinged, and sliding shoe 600, seat frame 200 and front-wheel pole 310 are sliding combined with rear wheel fulcrum bar 410
One end is hinged, and also has front-wheel connecting rod 330 between sliding shoe 600 and front-wheel pole 310, one end of front-wheel connecting rod 330 is hinged on
On front-wheel pole 310, the other end is hinged on sliding shoe 600, and the lower end of sliding shoe 600 and back rest 100 is hinged.
Also there is locking device 700, locking device 700 is located at the bottom of back rest 100, and locking device 700 includes positioning
Pin 710, back-moving spring 720 and lock cylinder 730, lock cylinder 730 are fixed on the bottom of back rest 100, alignment pin 710 and back-moving spring 720
In lock cylinder 730, back-moving spring 720 is enclosed on the periphery of alignment pin 710, one end and the lock cylinder 730 of back-moving spring 720
One end offsets, and the other end and the alignment pin 710 or the locating part being fixed on alignment pin 710 of back-moving spring 720 offset, lock cylinder
730 one end has a guide hole 731, one end of alignment pin 710 stretch out have on the guide hole 731 of lock cylinder 730, rear wheel fulcrum bar 410 with
The positioning hole 411 of the corresponding matching of alignment pin 710, one end of alignment pin 710 is fixedly connected with drawstring 711.
The other end of drawstring 711 stretches out the inner chamber of back rest 100 and is fixedly connected with grasping piece, and drawstring 711 is located at backrest
In the inner chamber of frame 100, grasping piece is that draw ring is used to pull two drawstrings 711 simultaneously, so unlocks locking device 700 just more square
Just.
When the present embodiment offer folding wheel chair needs to pack up, Fig. 2,3,4 are referred to, pulling block 800 is pulled down and then pulled
Drawstring 711, drawstring 711 pulls alignment pin 710, makes the positioning hole 411 before the disengaging of alignment pin 710, realizes to locking device
700 relieving, sliding shoe 600 can be moved freely on rear wheel fulcrum bar 410 after locking device 700 unclamps, then by sliding shoe
600 move down along rear wheel fulcrum bar 410, and now sliding shoe 600 drives the bottom for the back rest 100 being hinged with it to move down, backrest
Frame 100 and rear wheel fulcrum bar 410 are gradually drawn close to seat frame 200 to be packed up, and now front-wheel pole 310 is in front-wheel connecting rod 330
Seat frame 200 is close under drive backward, when back rest 100 and front-wheel pole 310 are fitted with seat frame 200, folds and completes.
Embodiment five.
A kind of folding wheel chair, please join sketch map 1~5, with back rest 100, seat frame 200, front-wheel pole 310, front-wheel
Component 320, rear wheel fulcrum bar 410 and wheel assembly 420, seat frame 200 are hinged on back rest 100, seat frame 200 and trailing wheel branch
One end of bar 410 is hinged, and sliding shoe 600, seat frame 200 and front-wheel pole 310 are sliding combined with rear wheel fulcrum bar 410
One end is hinged, and also has front-wheel connecting rod 330 between sliding shoe 600 and front-wheel pole 310, one end of front-wheel connecting rod 330 is hinged on
On front-wheel pole 310, the other end is hinged on sliding shoe 600, and the lower end of sliding shoe 600 and back rest 100 is hinged.
Also there is locking device 700, locking device 700 is located at the bottom of back rest 100, and locking device 700 includes positioning
Pin 710, back-moving spring 720 and lock cylinder 730, lock cylinder 730 are fixed on the bottom of back rest 100, alignment pin 710 and back-moving spring 720
In lock cylinder 730, back-moving spring 720 is enclosed on the periphery of alignment pin 710, one end and the lock cylinder 730 of back-moving spring 720
One end offsets, and the other end and the alignment pin 710 or the locating part being fixed on alignment pin 710 of back-moving spring 720 offset, lock cylinder
730 one end has a guide hole 731, one end of alignment pin 710 stretch out have on the guide hole 731 of lock cylinder 730, rear wheel fulcrum bar 410 with
The positioning hole 411 of the corresponding matching of alignment pin 710, one end of alignment pin 710 is fixedly connected with drawstring 711.
Front component 320 is fixedly connected on the other end of front-wheel pole 310, and wheel assembly 420 is fixedly connected on trailing wheel branch
The other end of bar 410.
Two middle side parts of seat frame 200 are respectively provided with hinge stent 210, one end of front-wheel pole 310 and the one of rear wheel fulcrum bar 410
End is hinged on hinge stent 210.
When the present embodiment offer folding wheel chair needs to pack up, Fig. 2,3,4 are referred to, pulling block 800 is pulled down and then pulled
Drawstring 711, drawstring 711 pulls alignment pin 710, makes the positioning hole 411 before the disengaging of alignment pin 710, realizes to locking device 700
Relieving, locking device 700 unclamp after sliding shoe 600 can be moved freely on rear wheel fulcrum bar 410, then by sliding shoe 600
Moved down along rear wheel fulcrum bar 410, now sliding shoe 600 drives the bottom for the back rest 100 being hinged with it to move down, back rest
100 and rear wheel fulcrum bar 410 gradually draw close and pack up to seat frame 200, and now band of the front-wheel pole 310 in front-wheel connecting rod 330
Seat frame 200 is close to backward under dynamic, when back rest 100 and front-wheel pole 310 fits with seat frame 200, folds completion.
Embodiment six.
A kind of folding wheel chair, please join sketch map 1~5, with back rest 100, seat frame 200, front-wheel pole 310, front-wheel
Component 320, rear wheel fulcrum bar 410 and wheel assembly 420, seat frame 200 are hinged on back rest 100, seat frame 200 and trailing wheel branch
One end of bar 410 is hinged, and sliding shoe 600, seat frame 200 and front-wheel pole 310 are sliding combined with rear wheel fulcrum bar 410
One end is hinged, and also has front-wheel connecting rod 330 between sliding shoe 600 and front-wheel pole 310, one end of front-wheel connecting rod 330 is hinged on
On front-wheel pole 310, the other end is hinged on sliding shoe 600, and the lower end of sliding shoe 600 and back rest 100 is hinged.
Also there is locking device 700, locking device 700 is located at the bottom of back rest 100, and locking device 700 includes positioning
Pin 710, back-moving spring 720 and lock cylinder 730, lock cylinder 730 are fixed on the bottom of back rest 100, alignment pin 710 and back-moving spring 720
In lock cylinder 730, back-moving spring 720 is enclosed on the periphery of alignment pin 710, one end and the lock cylinder 730 of back-moving spring 720
One end offsets, and the other end and the alignment pin 710 or the locating part being fixed on alignment pin 710 of back-moving spring 720 offset, lock cylinder
730 one end has a guide hole 731, one end of alignment pin 710 stretch out have on the guide hole 731 of lock cylinder 730, rear wheel fulcrum bar 410 with
The positioning hole 411 of the corresponding matching of alignment pin 710, one end of alignment pin 710 is fixedly connected with drawstring 711.
Also there is handrail 500, handrail 500 is hinged on back rest 100, and handrail 500 and seat frame on back rest 100
Also have handrail pole 510 between 200, one end of handrail pole 510 is hinged on handrail 500, handrail pole 510 it is another
One end is hinged on seat frame 200.
Electric drive drive disk assembly 321, electric drive drive disk assembly 321 and front component 320 are fitted with front component 320
It is connected, and electric drive drive disk assembly 321 is electrically connected with the electric controller that handrail 500 is provided with.
When the present embodiment offer folding wheel chair needs to pack up, Fig. 2,3,4 are referred to, pulling block 800 is pulled down and then pulled
Drawstring 711, drawstring 711 pulls alignment pin 710, makes the positioning hole 411 before the disengaging of alignment pin 710, realizes to locking device
700 relieving, sliding shoe 600 can be moved freely on rear wheel fulcrum bar 410 after locking device 700 unclamps, then by sliding shoe
600 move down along rear wheel fulcrum bar 410, and now sliding shoe 600 drives the bottom for the back rest 100 being hinged with it to move down, backrest
Frame 100 and rear wheel fulcrum bar 410 are gradually drawn close to seat frame 200 to be packed up, and now front-wheel pole 310 is in front-wheel connecting rod 330
Seat frame 200 is close under drive backward, when back rest 100 and front-wheel pole 310 are fitted with seat frame 200, folds and completes.
The preferred embodiment of the present invention is the foregoing is only, is not intended to limit the invention, for this area
For technical staff, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of locking device, it is characterised in that：
A including alignment pin, back-moving spring and lock cylinder, the alignment pin and the back-moving spring are described in the lock cylinder
Back-moving spring is enclosed on the periphery of alignment pin, and one end of the back-moving spring and one end of the lock cylinder offset, the back-moving spring
The other end offseted with the alignment pin or the locating part being fixed on the alignment pin, one end of the lock cylinder has guide hole,
The guide hole of the lock cylinder is stretched out in one end of the alignment pin；
B, one end of the alignment pin are fixedly connected with one end of drawstring.
2. locking device according to claim 1, it is characterised in that：The other end of the drawstring is fixedly connected with pulling block.
3. locking device according to claim 1, it is characterised in that：The other end of the drawstring is fixedly connected with grasping
Part.
4. a kind of folding wheel chair, with back rest, seat frame, front-wheel pole, front component, rear wheel fulcrum bar and wheel assembly,
The seat frame is hinged on back rest, it is characterised in that：
A, one end of the seat frame and the rear wheel fulcrum bar are hinged, and sliding shoe, the seat are sliding combined with rear wheel fulcrum bar
Position frame and one end of the front-wheel pole are hinged, and also have front-wheel connecting rod between the sliding shoe and the front-wheel pole, described
One end of front-wheel connecting rod is hinged on front-wheel pole, and the other end is hinged on sliding shoe；
B, the sliding shoe and back rest lower end are hinged；
C, also there is locking device, the locking device includes alignment pin, back-moving spring and lock cylinder, and the lock cylinder is fixed on backrest
Frame bottom, the alignment pin and the back-moving spring are in the lock cylinder, and the back-moving spring is enclosed on the periphery of alignment pin,
One end of the back-moving spring and one end of the lock cylinder offset, the other end of the back-moving spring and the alignment pin or fixation
Locating part on the alignment pin offsets, and one end of the lock cylinder has guide hole, and the lock is stretched out in one end of the alignment pin
There is the positioning hole with the alignment pin corresponding matching on the guide hole of cylinder, the rear wheel fulcrum bar；
D, one end of the alignment pin are fixedly connected with one end of drawstring.
5. folding wheel chair according to claim 4, it is characterised in that：The other end of the drawstring is fixedly connected with drawing
Block, the pulling block is arranged on the back rest.
6. folding wheel chair according to claim 4, it is characterised in that：The other end of the drawstring stretches out the interior of back rest
Chamber and grasping piece is fixedly connected with, the drawstring is located in the inner chamber of back rest.
7. folding wheel chair according to claim 4, it is characterised in that：The front component is fixedly connected on the front-wheel
The other end of pole, the wheel assembly is fixedly connected on the other end of the rear wheel fulcrum bar.
8. folding wheel chair according to claim 4, it is characterised in that：Two middle side parts of the seat frame are respectively provided with hinged
Frame, one end of the front-wheel pole and one end of the rear wheel fulcrum bar are hinged on the hinge stent.
9. folding wheel chair according to claim 4, it is characterised in that：Also there is handrail on the back rest, it is described to help
Hand is hinged on back rest, and also has handrail pole, the one of the handrail pole between the handrail and the seat frame
End is hinged on the handrail, and the other end of the handrail pole is hinged on the seat frame.
10. folding wheel chair according to claim 9, it is characterised in that：Electric drive biography is fitted with the front component
Dynamic component, the electric drive drive disk assembly is connected with the front wheel drive, and on the electric drive drive disk assembly and the handrail
The electric controller electrical connection being provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710405831.0A CN107137185A (en) | 2017-05-31 | 2017-05-31 | Folding wheel chair and its locking device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710405831.0A CN107137185A (en) | 2017-05-31 | 2017-05-31 | Folding wheel chair and its locking device |
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| CN107137185A true CN107137185A (en) | 2017-09-08 |
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| CN201710405831.0A Pending CN107137185A (en) | 2017-05-31 | 2017-05-31 | Folding wheel chair and its locking device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730121A (en) * | 2021-09-24 | 2021-12-03 | 浙江爱司米电气有限公司 | Foldable wheelchair |
| CN114633785A (en) * | 2022-03-29 | 2022-06-17 | 山东宏泰科技有限公司 | Lightweight folding fire-fighting transfer cart |
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| US3968991A (en) * | 1972-11-01 | 1976-07-13 | Gannet Holdings Limited | Collapsible seat structures |
| EP0201423A1 (en) * | 1985-05-06 | 1986-11-12 | Composites Aquitaine | Collapsible wheel chair with means for quick unbolting |
| WO1994016928A1 (en) * | 1993-01-20 | 1994-08-04 | Mgb | Foldable assembly for the support or transportation of a person |
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| CN201070430Y (en) * | 2007-07-20 | 2008-06-11 | 李茂顺 | Interlocked locking device for bicycle frame |
| CN201245172Y (en) * | 2008-06-16 | 2009-05-27 | 苏州威凯儿童用品有限公司 | Foldable baby carriage |
| CN204197172U (en) * | 2014-11-05 | 2015-03-11 | 常州高尔登科技有限公司 | A kind of folding scooter |
| CN205234804U (en) * | 2015-10-30 | 2016-05-18 | 徐州医学院 | Portable tourism fully collapsible invalid's chair |
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| GB1321085A (en) * | 1970-04-17 | 1973-06-20 | Maclaren O F | Folding wheel chair |
| US3968991A (en) * | 1972-11-01 | 1976-07-13 | Gannet Holdings Limited | Collapsible seat structures |
| EP0201423A1 (en) * | 1985-05-06 | 1986-11-12 | Composites Aquitaine | Collapsible wheel chair with means for quick unbolting |
| WO1994016928A1 (en) * | 1993-01-20 | 1994-08-04 | Mgb | Foldable assembly for the support or transportation of a person |
| CN1137749A (en) * | 1993-11-15 | 1996-12-11 | 亨德里克·J·奥德曼 | Collapsible wheelchair |
| CN1136910A (en) * | 1994-11-25 | 1996-12-04 | 康碧株式会社 | Collapsible seating apparatus |
| CN2557121Y (en) * | 2002-06-28 | 2003-06-25 | 李茂顺 | Portable folding wheelchair |
| CN201070430Y (en) * | 2007-07-20 | 2008-06-11 | 李茂顺 | Interlocked locking device for bicycle frame |
| CN201245172Y (en) * | 2008-06-16 | 2009-05-27 | 苏州威凯儿童用品有限公司 | Foldable baby carriage |
| CN204197172U (en) * | 2014-11-05 | 2015-03-11 | 常州高尔登科技有限公司 | A kind of folding scooter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113730121A (en) * | 2021-09-24 | 2021-12-03 | 浙江爱司米电气有限公司 | Foldable wheelchair |
| CN114633785A (en) * | 2022-03-29 | 2022-06-17 | 山东宏泰科技有限公司 | Lightweight folding fire-fighting transfer cart |
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Application publication date: 20170908 |