CN110251326A - A kind of foldable electric wheeled chair - Google Patents
A kind of foldable electric wheeled chair Download PDFInfo
- Publication number
- CN110251326A CN110251326A CN201910615646.3A CN201910615646A CN110251326A CN 110251326 A CN110251326 A CN 110251326A CN 201910615646 A CN201910615646 A CN 201910615646A CN 110251326 A CN110251326 A CN 110251326A
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- China
- Prior art keywords
- pin
- locking
- unlock
- backrest
- spring
- Prior art date
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 39
- 210000000245 forearm Anatomy 0.000 claims abstract description 37
- 230000000694 effects Effects 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 2
- 230000000712 assembly Effects 0.000 description 13
- 238000000429 assembly Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 10
- 230000007246 mechanism Effects 0.000 description 8
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000007704 transition Effects 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000003414 extremity Anatomy 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 210000003739 neck Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 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
- A61G5/04—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs motor-driven
-
- 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
-
- 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
Abstract
The invention discloses a kind of foldable electric wheeled chairs, comprising: cushion, backrest, body frame, forearm, position-limited rack and the folding regulating device for carrying out foldable locking or unlock to wheelchair, the cushion are connect by seat joint with the movable backrest.Through the above way, a kind of foldable electric wheeled chair of the present invention, breach the structure and folding mode of traditional push chairs, stability, the safety of wheelchair are improved using structures such as body frame and forearms, and the work of foldable locking and unlock, the folding and use of more convenient user are completed using regulating device etc. is folded.
Description
Technical field
The present invention relates to wheelchair and its accessories fields, more particularly to a kind of foldable electric wheeled chair.
Background technique
Wheelchair is walking-replacing tool and common medical rehabilitation instrument and the user of limbs the disabled and people with mobility problems
By progress physical exercise and participate in social activities.General wheelchair can be convenient for the user to use by folding.
But wheelchair is when folding and unfolding at present, generally requiring both hands operation could be folded and be opened up to wheelchair
It opens, operate unusual inconvenience, and wheelchair currently on the market there is a problem in terms of stability and load-bearing capacity,
In addition, the controller and battery of existing wheelchair cannot be directly connected to, there are safety issues because of the limitation of Wheelchair structure.
Summary of the invention
The invention mainly solves the technical problem of providing a kind of folding electric wheelchairs, have unfailing performance height, user
Just, the advantages that folding effect is good, at the same the application of wheelchair and its accessory and it is universal on have extensive market prospects.
In order to solve the above technical problems, one technical scheme adopted by the invention is that:
A kind of foldable electric wheeled chair is provided comprising: cushion, backrest, body frame and body frame forearm arranged in a crossed manner
And the folding regulating device for carrying out foldable locking or unlock to wheelchair,
The cushion is connect with the movable backrest, and the bottom end of the backrest is living by folding regulating device and the forearm
It is dynamic to connect, it is provided with position-limited rack between two forearms, the top of the body frame is set to the bottom surface of the cushion, the master
Frame is movably set on the position-limited rack, and the two sides of the forearm lower end and the body frame are provided with idler wheel.
In a preferred embodiment of the present invention, it is provided with bracket between two forearms, is provided on the bracket
Pedal, the pedal are overturn along the bracket, described to be movably set with handrail by back, between the cushion and the handrail
It is provided with the handle-adjusting device for adjustable handrail and backrest, battery is provided in the body frame and is connected with the battery
The controller connect, the controller are connected with the control handle being set on handrail.
In a preferred embodiment of the present invention, the handle-adjusting device includes gas spring, fixing seat, strip, pressing
Handle, resetting block, the cushion side are provided with the fixing seat, and the lower end of the fixing seat is provided with strip, the gas bullet
The upper end of spring is flexibly connected with the handrail, and lower end is flexibly connected with the fixing seat, and the pressing handle is movably set in institute
It states in gas spring, the bottom surface of the pressing handle is provided with resetting block, and the resetting block is in contact and pushes with the gas spring
The top of pressing handle moves out reset, and the lower end of the pressing handle is provided with the hook being cooperatively connected with the strip.
In a preferred embodiment of the present invention, the folding regulating device includes that the first regulating device and second adjust dress
It sets, the cushion is connect by first regulating device with the movable backrest, and the forearm adjusts dress by described second
It sets and is connect with the movable backrest.
In a preferred embodiment of the present invention, first regulating device include vehicle frame locking piece, it is vehicle frame unlock pin, outer
Key seat, interior key seat, unlock spring, fixing head, connection stay cord, the vehicle frame locking piece is set to the two sides of the cushion, described
Outer key seat is set to the two sides of the backrest, and the interior key seat is set in the outer key seat, and the both ends of the connection stay cord are set
It is equipped with the fixing head, the fixing head passes through the outer key seat and the interior key seat is connected with the vehicle frame unlock pin, institute
It is to be flexibly connected that vehicle frame unlock pin, which is stated, with the vehicle frame locking piece, is provided between the interior key seat and the fixing head for pushing away
The unlock spring of motor-car frame unlock pin.
In a preferred embodiment of the present invention, second regulating device includes the first fixing piece, the second fixing piece, solution
Bullet pin, pushing block, button, rebound spring, locking bullet pin are locked, first fixing piece is set to the lower part of the backrest, and described the
Two fixing pieces are set to the top of the forearm, and loose slot is provided on first fixing piece and is connected with the loose slot
Logical lock hole, the button are set in the loose slot, and described return is provided between the loose slot and the button
Spring is played, one end of the unlock bullet pin is connected with the button, and the other end passes through loose slot and is connected with the pushing block, institute
The one end for stating locking bullet pin is set in second fixing piece by the rebound spring, the other end and lock hole activity
Connection.
In a preferred embodiment of the present invention, the forearm passes through the bottom for folding regulating device and the backrest
It is flexibly connected, the folding regulating device includes shell, shaft, lock cell and foldable locking unit is unfolded, the backrest
Bottom end is connected by the shaft and forearm rotation, and the shell is set to the lower end of the backrest, and the shell with
The shaft is connected, and the expansion lock cell and the foldable locking unit are set on the shell.
In a preferred embodiment of the present invention, the expansion lock cell include solution locked groove, unlock drawstring, limit hole,
Spring, fixed pin, the solution locked groove are set on the shell, and the forearm end is provided with the limit hole, the fixation
Pin is flexibly connected across the limit hole and with the solution locked groove, is provided between the limit hole and the fixed pin for multiple
The spring of the position fixed pin, the unlock drawstring drive two fixed pins to move forward and backward.
In a preferred embodiment of the present invention, the front end of the fixed pin is movably set in the solution locked groove, described
The rear end of fixed pin protrudes from the limit hole, and the rear end of the fixed pin is connected with limited block, described to unlock the two of drawstring
End is connected with the limited block respectively, card slot is provided on the fixed pin, the spring is set in the card slot.
In a preferred embodiment of the present invention, the foldable locking unit include locking press button, lock slots, locking pin,
Spring, the lock slots being cooperatively connected with the fixed pin are set on the shell, and promotion is provided in the lock slots
The locking pin of the fixed pin, the fixture block that sports limiting is carried out to the locking pin, the outer end of the locking pin is connected with promotion
Its locking press button moved forward and backward, the spring for resetting locking pin be set to the locking press button and the fixture block it
Between.
The beneficial effects of the present invention are: breaching the structure and folding mode of traditional push chairs, crank rocker double leval jib is utilized
Extreme position formed dead point, simplify mechanism, alleviate weight, and reached the best stabilized effect of structure, and using folding
Regulating device etc. is folded to complete the work of foldable locking and unlock, the folding and use of more convenient user.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, in which:
Fig. 1 is a kind of axis side structure schematic diagram of foldable electric wheeled chair specific embodiment one of the invention；
Fig. 2 is a kind of stereochemical structure of foldable electric wheeled chair specific embodiment one of the invention
Schematic diagram；
Fig. 3 is the structural representation of handle-adjusting device in one preferred embodiment of a kind of foldable electric wheeled chair of the invention
Figure；
Fig. 4 is the structural representation that lock cell is unfolded in a kind of foldable electric wheeled chair specific embodiment one of the invention
Figure；
Fig. 5 is the structural representation of foldable locking unit in a kind of foldable electric wheeled chair specific embodiment one of the invention
Figure；
Fig. 6 is a kind of folded state structural schematic diagram of foldable electric wheeled chair specific embodiment one of the invention；
Fig. 7 is a kind of axis side structure schematic diagram of foldable electric wheeled chair specific embodiment two of the invention；
Fig. 8 is the structural representation of the first regulating device in a kind of foldable electric wheeled chair specific embodiment two of the invention
Figure；
Fig. 9 is the first fixing piece in a kind of the second regulating device of foldable electric wheeled chair specific embodiment two of the invention
Structural schematic diagram；
Figure 10 is the second fixation in a kind of the second regulating device of foldable electric wheeled chair specific embodiment two of the invention
The structural schematic diagram of part；
Figure 11 is a kind of structural schematic diagram of foldable electric wheeled chair specific embodiment eighty percent discount overlapping state of the invention；
Figure 12 is the structural schematic diagram of handrail in a kind of foldable electric wheeled chair 5.2 of the invention；
Figure 13 is the schematic diagram of the section structure of handrail in a kind of foldable electric wheeled chair 5.2 of the invention；
Figure 14 is the structural schematic diagram of anti-tip wheel in a kind of foldable electric wheeled chair of the invention.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Fig. 1-14 is please referred to, the embodiment of the present invention includes:
A kind of foldable electric wheeled chair comprising: cushion 1, backrest 2, body frame 3, forearm 4, postbrachium 5, position-limited rack 6 and use
In the folding regulating device 7 for carrying out foldable locking or unlock to wheelchair, the cushion is by seat joint 9 or folds adjusting dress
It sets and is connect with the movable backrest.The cushion lower fixed frame constitutes the song of wheelchair by the fixed frame, body frame and forearm of back
Handle rocking bar four-bar mechanism can be rotated between four-bar mechanism with interaction, to complete folding and unfolding for wheelchair.
1) about body frame and position-limited rack
The backrest is flexibly connected with the forearm, and position-limited rack is provided between two forearms, and the body frame is (described
Body frame can be rhs-structure) top be set to the bottom surface of the cushion, and the end of the body frame cannot protrude from cushion,
User is facilitated to take.When wheelchair expansion, the body frame drives cushion movement to open until the body frame frame is in the position-limited rack
On, the bearing capacity and stability of wheelchair can be improved in position-limited rack, and wheelchair collapses downwards when preventing user from sitting down, under the body frame
Portion is provided with the postbrachium being connected with the body frame, and the two sides of the forearm lower end and the body frame are provided with idler wheel 8, uses
It is all set in forearm and postbrachium in the pipeline for driving and controlling idler wheel, not only entire wheelchair can be allowed more clean and tidy, but also
Can prevent pipeline it is exposed caused by security risk.
2) about idler wheel
Idler wheel (mainly front-wheel) can use Shockproof wheel, can also be using no wheel hub Shockproof wheel.
2.1) Shockproof wheel includes wheel, shock-proof spring, yoke, upper shock-proof seat, lower shock-proof seat, shock-absorbing gasket, described
Yoke is set to the bottom surface of the lower shock-proof seat, and the wheel is movably set between two yokes, the upper shock-proof seat and institute
It states lower shock-proof seat to be flexibly connected by axis, the bottom of the upper shock-proof seat is provided with the first groove, the top of the lower shock-proof seat
It is provided with the second groove, first groove and second groove constitute the spring groove for placing shock-proof spring, described
The two sides of first groove are provided with the third groove that limit is matched with second recess sidewall, the top surface of the upper shock-proof seat
It is provided with the shock-absorbing gasket and wheel connecting shaft.
When encountering up-and-down road, front-wheel is raised and drives lower shock-proof seat to compress shock-absorbing bullet upwards by yoke
The upper groove surface shape of spring, the top surface of lower shock-proof seat and third groove in an angle, can limit lower shock-proof seat, keep away instantly
When the top surface of third groove is encountered in the top surface of shake seat, that is, reach the range of shock-absorbing, prevents lower shock-proof seat displacement excessively, i.e.,
The shock-absorbing performance for improving wheel, improves the comfort of wheelchair, and makes the service life for extending Shockproof wheel, improves reality
The property used.
2.2) the no wheel hub Shockproof wheel include shock-absorbing wheel seat, shock-proof spring, wheel hub left cover, wheel hub right cover plate, in set
Sliding ring, sliding bearing, bearing retainer plate, tire.
The top surface of the shock-absorbing wheel seat is provided with tire connecting shaft, and the lower part of the shock-absorbing wheel seat is provided with a upper spring card
Slot is each provided with a limiting slot in shock-absorbing wheel seat (two sides of the i.e. described spring card slot) two side walls.The wheel hub left cover
The top surface of plate and the wheel hub right cover plate is matched with the limiting slot, to the wheel hub left cover and the wheel hub right cover plate into
The limit that row moves upwards, when tire drives cover board upward, shock-proof spring plays the role of buffering, while the upper limit of limiting slot
Plane contacts limit with the top surface of cover board, prevents cover board and the upward overexercise of tire, improves the stability of Shockproof wheel and comfortable
Property.
It is provided with left groove body at the top of the wheel hub left cover, right groove body, institute are provided at the top of the wheel hub right cover plate
It states left groove body and the right groove body forms the lower spring card slot matched with the upper spring card slot, the shock-proof spring is set to
In the upper spring card slot and the lower spring card slot.In order to prevent spring deviate from, can also upper spring card slot top surface and
Spring fixture block is set on the bottom surface of lower spring card slot, improves integrally-built stability.
The tire is set on the outer wall of the bearing retainer plate, is provided with bearing jack on the bearing retainer plate,
The sliding bearing is set in the bearing jack, and the axial-rotation in bearing jack, it is described in set the outer ring of sliding ring
Be provided with sliding groove on wall, the bearing retainer plate is rotated by the sliding bearing along the sliding groove, it is described in set sliding
The side of left and right two of circle is provided with the slot cover with the wheel hub left cover and wheel hub right cover plate mating connection.It is assembling
After the completion, it sets sliding ring in described to be located in the inner ring of the bearing retainer plate, the tire is set to the bearing retainer plate
Outer ring on, when tire bottom surface roll when, tire belt dynamic bearing retainer plate rotation, bearing retainer plate by sliding bearing in institute
It sets on sliding ring and rotates in stating, to realize the smooth operation without wheel hub Shockproof wheel.
2.3) an anti-dumping wheel construction, the anti-tip wheel knot can be set in (especially rear-wheel) on the transmission shaft of each idler wheel
Structure includes wheel, anti-dumping wheel support, pedestal and wheel tripper, and the pedestal is set on the transmission shaft, the pedestal
On be provided with a groove, one end of the anti-dumping wheel support is arranged in the groove by pin shaft parallel activity, and described
Axial-rotation in groove is provided with the wheel on the side wall of the other end.The wheel tripper is set on the pedestal,
And cooperates locking with the pedestal or unlock the anti-dumping wheel support.
Wheel tripper can be using pull-type tripper or by formula tripper.
Pull-type tripper includes pulling pin, fixing shell, clamping block, and the fixing shell is set on the pedestal, institute
It states and is provided with loose slot in fixing shell, the lower part of the pulling pin passes through the loose slot and is connected with the clamping block, activity
It is provided with the spring for pushing clamping block to reset downwards between slot and the clamping block, is provided with and locks on the anti-dumping wheel support
Locking through-hole that block cooperation locks or unlocks (or on the pedestal and the lock interconnected is provided on the anti-dumping wheel support
Determine through-hole).
When needing using anti-tip wheel, the pulling pin is pulled up upwards, pulling pin is with clamping block upwards until being detached from anti-dumping
Locking through-hole on wheel support, at this moment anti-tip wheel unlock, can by bracket be unfolded 90 ° carry out using.When needing using anti-tip wheel
When, the inside 90 ° of foldings of anti-dumping wheel support after folding in place, can be locked block alignment and be inserted into locking through-hole, at this moment prevented
The wheel that inclines is just locked, reduces folded volume.
3) about body frame, battery unit and controller unit
The body frame is connected by body frame fixing seat with the cushion, and battery unit and control are provided in the body frame
Device unit processed, the battery and the controller carry out the direct electric connection of plug-in by battery plug and control jack.
The battery unit includes battery case, battery limiting seat, lifts slot, battery body, battery plug, guide holder,
The battery is fixedly installed in the battery case, and one end of the battery plug is controlled with the battery, and the other end is worn
The battery case is crossed, the guide holder is set to the bottom surface of the battery case, and the guide holder is described around being set to
The surrounding of battery plug, the limit base are set to the top surface of the battery case, and the lifting slot is set to the limit base
On.
The area of section of the limit base is greater than the area of section of the wheelchair support frame, be provided on the limit base with
The sealing ring that the wheelchair support frame top opening is connected can effectively prevent external sundries in this way and enter wheelchair support
Battery and controller are damaged in frame, extends the service life of battery and controller, improve safety, while when battery needs to charge
Or when maintenance, user directly holds lifting slot and lifts, and can both come out cell drawing, and be convenient for the user to use.
The controller unit includes controller housing 710, controller, controller jack, guide groove, and the controller is set
It is placed in the controller shell body, the lower part of the controller jack is connected on the controller, and top and the battery are inserted
Head plug connection, the guide groove are set to the top surface of the controller housing, and the guide groove surround and is set to the control
The surrounding of device jack, the guide groove and guide holder, which are worked in coordination, to be oriented to and is positioned, and battery can be allowed more accurate quick
Connect with controller, prevent from causing equipment part to damage because of insertion position deviation, the bottom surface of the controller housing is set
It is equipped with the control joint being connected with controller.
The controller housing is connected by bolt with the wheelchair support frame, can both guarantee controller housing in this way
It is stably fixed in wheelchair support frame, when controller, which needs repairing, to be detected, bottom cover can be opened, then remove bolt
Equal fasteners, so that it may easily take out controller housing.
The battery unit is movably set in the wheelchair support frame, the controller housing and the wheelchair support frame
To be detachably connected.The bottom of the body frame is provided with a bottom cover 711, and the bottom cover is to be detachably connected with support frame as described above,
It can effectively prevent external sundries in this way and enter damage battery and controller in wheelchair support frame, extend battery and controller
Service life, improve safety.
The wire guide for making external connection line be connected with controller connector is provided on the side wall of the body frame.It is described
Wire guide is connected with the connection frame for installing fixed idler whell, and external connection line passes through the connection frame and connects with the controller
Head is connected.
4) about pedal
It is provided with the bracket of arcuate structure between two forearms, mounting rack, the installation are provided on the bracket
The groove body to fit with bracket is provided on frame, pedal is set on U-shaped frame, and the two sides of the U-shaped frame bottom surface are provided with pedal
Connection frame, the pedal connection frame are U-shaped structure, and the end of the mounting rack is stuck in the opening of the pedal connection frame, and
Mounting rack and pedal connection frame are connected by bolt, allow U-shaped frame around bolt axial-rotation, when in use,
Pedal can be opened, when pleated, pedal can be overturn, to reduce the volume of stowed rear wheels chair.
5) about handrail
It is described that back is provided with handrail 10, the control handle being connected with the controller is provided on the handrail,
It is provided with the handle-adjusting device for adjustable handrail and backrest between the cushion and the handrail, the handrail and described leans on
Back is always to be flexibly connected, so only needing simultaneously link to backrest and handrail by the handle-adjusting device
Fixation and limit, help folding and unfolding for backrest and handrail, operate more convenient.
The controller for controlling wheelchair is provided in the handrail, the top surface of the handrail is provided with control panel, control
Button and rocking bar processed, the rocking bar and the control button are connected with the controller, control panel, control button and rocking bar
It can be set to simultaneously on a handrail, can also be disposed on two handrails, meet different use demands.It is described to shake
The lower part of bar is directly arranged in the handrail, and not on handrail or control cage is additionally installed in side, in this way can be effective
It prevents from control cage to be knocked in storage or driving process to fall, reduces the contacts such as wheel, pedestrian and fall rocking bar and generate mistake
The accidentally probability of control, substantially increases safety and the practicability of wheelchair.
The handrail is including but not limited to two kinds of structures:
5.1) handle-adjusting device includes gas spring 11 (can also be using other elasticity or stretcher), fixing seat
12, strip 13, pressing handle 14, resetting block 15, the resetting block have certain elasticity, can be using materials systems such as rubber
It forms.
Cushion two sides side and the bottom of handrail are provided with the fixing seat, the gas spring and the fixation
Seat is connected by bolt, and the end of gas spring and fixing seat can be provided with around bolt rotary motion, the lower end of the fixing seat
Strip.
The two sides of the pressing handle are vertically arranged there are two wing plate, and the wing plate is movably set in the gas spring,
The bottom surface of the pressing handle is provided with resetting block, and the resetting block is in contact with the gas spring and pushes the upper of pressing handle
Portion moves out reset, and the lower end of the pressing handle is provided with the hook 16 being cooperatively connected with the strip.
Fold, expansion wheelchair, or when in order to meet the different Ride Styles of user, it is necessary to adjust handrail and backrest
Position, can first pin the top of pressing handle, so that pressing handle oppresses resetting block, while make to press using lever principle
The lower end of handle tilts, and push-and-pull gas spring adjusts the position of handrail, then unclamps pressing handle, and resetting block pushes out pressing
The top of handle, while the lower part for pressing handle is inwardly moved, so that the hook of pressing handle, at its lower end is stuck in fixation
On the strip of seat, the fixation of handrail and backrest is completed.
5.2) handle-adjusting device include the first slide assemblies 401, the second slide assemblies 402, ribbed insert 403,
Handrail attachment base 404, sliding transition piece 405, handrail unblock button component 406, the handrail is set to the ribbed insert
Top surface, the handrail attachment base are set to the bottom surface of the ribbed insert, and the sliding transition piece is set to first sliding
The top of opening at the top of component, second slide assemblies is connected by stop nut with the handrail attachment base, institute
The lower part for stating the second slide assemblies passes through the sliding transition piece and is movably set in first slide assemblies.With described
The handrail unblock button component of two slide assemblies cooperation limit is set on first slide assemblies, first sliding
The bottom of component is covered by handrail next week to be connected with the cushion.
The handrail unblock button component includes handrail solution lock 4061, handrail unlock pin 4062, unblock button 4063, helps
Hand unlocks spring 4064, handrail limit card block 4065, and the diameter of the limit card block is greater than the diameter of the handrail unlock pin, this
Sample limit card block can preferably be cooperated with handrail limited block, and handrail is fixed on corresponding position, facilitates adjustable handrail
Position.
The handrail solution lock is set on first slide assemblies, is provided in the handrail attachment base for resetting
The handrail of button unlocks spring.Sliding groove 407 is provided on second slide assemblies, the both ends of the sliding groove are each provided with
One limit card slot 408, the limit card slot are connected with the sliding groove, and the diameter of the limit card slot is greater than the sliding
The diameter of slot.
It is provided on first slide assemblies, second slide assemblies and the sliding transition piece for handrail unlock pin
One end of the through-hole passed through, the handrail unlock pin is connected with the unblock button, the other end pass through the handrail solution lock,
Through-hole and sliding groove (or limit card slot) are connected with limit card block afterwards.The handrail unlock pin in the sliding groove back and forth
Movement, the limit card block are flexibly connected with the limiting slot.
When needing to unlock armrest mechanism, the unblock button is first pressed, button pushes handrail unlock pin forward, from
And the limit card block abjection is driven to be located at the limit card slot above sliding groove, and handrail at this moment can be pulled up, second
Slide assemblies can be pulled out from the first slide assemblies, until handrail unlock pin moves in the limit card slot below sliding groove
Afterwards, the limit card block is no longer influenced by the blocking of sliding groove and is dropped into limit card slot again, carries out handle adjusting locking.
6) about folding regulating device
Specific embodiment one
The cushion is by the way that seat joint 9 is connect with the movable backrest, the forearm passes through the folding regulating device 7
When connecting with the movable backrest, the folding regulating device includes shell, shaft 71, expansion lock cell and fold latch order
The bottom end of member, the backrest is connected by the shaft and forearm rotation, and the shell includes first shell 72 and second
Shell 73, the first shell shell are set to the lower end of the backrest, and the second shell is set to the upper end of the forearm,
The first shell and the second shell are set to the both ends of the shaft, the expansion lock cell and the foldable locking
Unit is set on the shell.
The expansion lock cell includes solution locked groove 701, unlock drawstring 702, limit hole 703, unlock spring 704, fixes
Pin 705, the solution locked groove are set in the first shell, and the limit hole is set in the second shell, the fixation
The front end of pin passes through the limit hole and is flexibly connected with the solution locked groove, and card slot, the limit are provided on the fixed pin
The unlock spring for resetting the fixed pin is provided between hole and the card slot, the rear end of the fixed pin protrudes from
The limit hole, and the rear end of the fixed pin is connected with limited block, the both ends of the unlock drawstring respectively with the limited block
It is connected and two fixed pins is driven to move forward and backward.
After wheelchair folds, unlock drawstring can be stuck between backrest and body frame, so increasing a folding on the shell
Lock cell, the foldable locking unit setting can be set on the shell of wheelchair two sides, can also be positioned only at wheelchair one
On the shell of side, Wheelchair structure can simplify in this way, user only needs one hand to can be carried out locking and unlocking, more convenient use
Family operation.
The foldable locking unit includes locking press button 706, lock slots 707, locking pin 708, Lock spring 709, with institute
The lock slots for stating fixed pin mating connection are set on the shell, locking pin are provided in the lock slots and to institute
The fixture block 712 that locking pin carries out sports limiting is stated, the inner end of the locking pin is connected with a convex block, and the diameter of the convex block is greater than
The diameter of the locking pin prevents convex block to be fixed pin and excessively heads into, and the outer end of the locking pin is connected with its front and back fortune of promotion
Dynamic locking press button, the convex block directly contact and push the fixed pin, and the Lock spring for resetting locking pin is set
It is placed between the locking press button and the fixture block.
When folded bicycle, unlock drawstring is pulled, fixed pin pressuring spring is retracted to limit hole direction, so that fixed pin is from unlock
Deviate from slot, four-bar mechanism unlock is lifted up cushion and backrest is turned over, and cushion drives body frame to transport forward upwards
Dynamic, backrest drives forearm to turn over, and drives shell rotation, when four-bar mechanism and shell rotation are finished to fold latch and positioned
When setting, fixed pin is ejected outward by the thrust of spring and is inserted into lock slots, is locked to the vehicle folded.
When vehicle is unfolded, locking press button is inwardly pressed, locking pin is inwardly indented and fixed pin is pushed out from lock slots, four
Link mechanism unlock, all joints are again at unlock active state, and vehicle can be pulled along to expansion latched position, fixed
Pin is aligned again and is inserted into solution locked groove, carries out expansion locking to the vehicle being unfolded.
Specific embodiment two
When the cushion and the forearm are all connect by the folding regulating device with the movable backrest, the folding
Regulating device include the first regulating device 20 and the second regulating device 30, the cushion by first regulating device with it is described
Movable backrest connection, the position of such first regulating device is top, facilitates old man or handicapped people that drawstring is pulled to carry out
Unlock, the forearm are connect by second regulating device with the movable backrest.
First regulating device include vehicle frame locking piece 201, vehicle frame unlock pin 202, outer key seat 203, interior key seat 204,
Spring 205, fixing head 206, connection stay cord 207 are unlocked, the vehicle frame locking piece is set to the two sides of the cushion, the vehicle frame
The connecting hole matched with vehicle frame unlock pin is provided on locking piece, the outer key seat is set to the two sides of the backrest, described
Interior key seat is set in the outer key seat, and the interior key seat, which can be used to reduce, grinds key seat bring when unlock pin moves back and forth
Damage, the both ends of the connection stay cord are provided with the fixing head, and fixing head is provided with close to the end of drawstring and plays position-limiting action
Block, prevent fixing head and unlock pin from deviating from key seat under the action of tensioned power, the fixing head passes through the export trade
Seat and the interior key seat are connected with the vehicle frame unlock pin, and the vehicle frame unlock pin is to be flexibly connected with the connecting hole, institute
State the unlock spring being provided between interior key seat and the fixing head for pushing vehicle frame unlock pin.
Second regulating device include the first fixing piece 301, the second fixing piece 302, unlock bullet pin 303, pushing block 304,
Button 305, rebound spring 306, locking bullet pin 307, first fixing piece are set to the lower part of the backrest, and described second is solid
Determine the top that part is set to the forearm, first fixing piece is rotatably connected with second fixing piece (can be by turning
Axis connection).Loose slot 308 and the lock hole being connected with the loose slot 309, and institute are provided on first fixing piece
The junction for stating loose slot and the lock slots is provided with limit card block for limiting pushing block, prevents button entirely pop-up activity
Slot, the button are set in the loose slot, and the rebound spring is provided between the loose slot and the button, institute
The one end for stating unlock bullet pin is connected with the button, and the other end passes through loose slot and is connected with the pushing block, the locking bullet
One end of pin is set in second fixing piece by the rebound spring, and the other end is flexibly connected with the lock hole.
When needing fully collapsible invalid's chair, the connection stay cord, vehicle frame unlock pin band under the pulling force of connection stay cord are pulled
Retraction in the inside key seat of motor-car frame unlock pin, until vehicle frame unlock pin is thoroughly detached from the connecting hole, backrest and seat complete the
The unlock of one step, then rotate backward backrest, so that the first fixing piece rotates, until the lock hole on the first fixing piece is directed at locking
Bullet pin, pop-up is caught in lock hole locking bullet pin forward under the action of the spring, at this point, wheelchair vehicle just completes the lock of folding
It is fixed.
When needing to be unfolded wheelchair, by lower button, pushing block is pushed into lock slots under the action of button and unlock bullet pin, until
Bullet pin is locked by the completely out lock slots of pushing block, at this moment forearm and backrest unlock can be movable, and rotary backrest unlocks vehicle frame
When pin moves to the position of connecting hole, vehicle frame unlock pin is sprung into connecting hole under the action of the spring, completes the expansion of wheelchair
Locking.
In fully collapsible invalid's chair and when completing the first step unlock of backrest and seat, the connection stay cord, the vehicle frame solution are pulled
Lock pin drives in the inside key seat of vehicle frame unlock pin under the pulling force of connection stay cord and is retracted, until described in vehicle frame unlock pin is thoroughly detached from
Connecting hole, at this moment, backrest and seat complete first step unlock.When expansion wheelchair, rotary backrest make unlock pin move to connection
When the position in hole, vehicle frame unlock pin is sprung into connecting hole under the action of the spring, the locking of cushion and backrest.
A kind of beneficial effect of foldable electric wheeled chair of the present invention is: the structure and folding mode of traditional push chairs are breached,
Dead point is formed using the extreme position of crank rocker double leval jib, mechanism is simplified, alleviates weight, and reached the best of structure
Stablizing effect, and the work of foldable locking and unlock is completed using regulating device etc. is folded, the folding of more convenient user and
It uses.
The above description is only an embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (10)
1. a kind of foldable electric wheeled chair characterized by comprising cushion, backrest, body frame and the body frame are arranged in a crossed manner
Forearm and folding regulating device for carrying out foldable locking or unlock to wheelchair,
The cushion is connect with the movable backrest, and the bottom end of the backrest is connected by folding regulating device and the forearm activity
It connects, position-limited rack is provided between two forearms, the top of the body frame is set to the bottom surface of the cushion, and the body frame is living
Dynamic to be set on the position-limited rack, the two sides of the forearm lower end and the body frame are provided with idler wheel.
2. a kind of foldable electric wheeled chair according to claim 1, which is characterized in that be provided between two forearms
Bracket is provided with pedal on the bracket, and the pedal is overturn along the bracket, described to be movably set with handrail by back,
It is provided with the handle-adjusting device for adjustable handrail and backrest between the cushion and the handrail, is provided in the body frame
Battery unit and the controller unit being controlled with the battery, the controller unit and the manipulation hand being set on handrail
Handle is connected.
3. a kind of foldable electric wheeled chair according to claim 2, which is characterized in that the handle-adjusting device includes gas
Spring, fixing seat, strip, pressing handle, resetting block, the cushion side is provided with the fixing seat, under the fixing seat
End is provided with strip, and the upper end of the gas spring is flexibly connected with the handrail, and lower end is flexibly connected with the fixing seat, described
Pressing handle is movably set in the gas spring, and the bottom surface of the pressing handle is provided with resetting block, the resetting block and institute
Gas spring is stated to be in contact and the top of pressing handle is pushed to move out resets, the lower end for pressing handle be provided with it is described
The hook that strip is cooperatively connected.
4. a kind of foldable electric wheeled chair according to claim 1 to 3, which is characterized in that the folding adjusts dress
It sets including the first regulating device and the second regulating device, the cushion is connected by first regulating device and the movable backrest
It connects, the forearm is connect by second regulating device with the movable backrest.
5. a kind of foldable electric wheeled chair according to claim 4, which is characterized in that first regulating device includes vehicle
Frame locking piece, vehicle frame unlock pin, outer key seat, interior key seat, unlock spring, fixing head, connection stay cord, the vehicle frame locking piece setting
In the two sides of the cushion, the outer key seat is set to the two sides of the backrest, and the interior key seat is set in the outer key seat,
The both ends of the connection stay cord are provided with the fixing head, the fixing head pass through the outer key seat and the interior key seat with it is described
Vehicle frame unlock pin is connected, and the vehicle frame unlock pin and the vehicle frame locking piece are to be flexibly connected, the interior key seat and described solid
Determine to be provided with the unlock spring for pushing vehicle frame unlock pin between head.
6. a kind of foldable electric wheeled chair according to claim 5, which is characterized in that second regulating device includes the
One fixing piece, the second fixing piece, unlock bullet pin, pushing block, button, rebound spring, locking bullet pin, first fixing piece are set to
The lower part of the backrest, second fixing piece are set to the top of the forearm, are provided with activity on first fixing piece
Slot and the lock hole being connected with the loose slot, the button are set in the loose slot, and the loose slot and institute
It states and is provided with the rebound spring between button, one end of the unlock bullet pin is connected with the button, and the other end, which passes through, lives
Dynamic slot is connected with the pushing block, and one end of the locking bullet pin is set to second fixing piece by the rebound spring
Interior, the other end is flexibly connected with the lock hole.
7. a kind of foldable electric wheeled chair according to claim 1 to 3, which is characterized in that the forearm passes through institute
It states folding regulating device to be flexibly connected with the bottom of the backrest, the folding regulating device includes shell, shaft, expansion locking
The bottom end of unit and foldable locking unit, the backrest is connected by the shaft and forearm rotation, the shell setting
In the lower end of the backrest, and the shell is connected with the shaft, the expansion lock cell and the fold latch order
Member is set on the shell.
8. a kind of foldable electric wheeled chair according to claim 7, which is characterized in that the expansion lock cell includes solution
Locked groove, unlock drawstring, limit hole, spring, fixed pin, the solution locked groove are set on the shell, the forearm end setting
Have a limit hole, the fixed pin passes through the limit hole and is flexibly connected with the solution locked groove, the limit hole with it is described
The spring for resetting the fixed pin is provided between fixed pin, before the unlock drawstring drives two fixed pins
After move.
9. a kind of foldable electric wheeled chair according to claim 8, which is characterized in that the front end activity of the fixed pin is set
It is placed in the solution locked groove, the rear end of the fixed pin protrudes from the limit hole, and the rear end connection of the fixed pin is limited
The both ends of position block, the unlock drawstring are connected with the limited block respectively, and card slot, the spring are provided on the fixed pin
It is set in the card slot.
10. a kind of foldable electric wheeled chair according to claim 8, which is characterized in that the foldable locking unit includes
Locking press button, lock slots, locking pin, spring, the lock slots being cooperatively connected with the fixed pin are set on the shell,
The fixture block for being provided in the lock slots and pushing the locking pin of the fixed pin, carry out sports limiting to the locking pin, it is described
The outer end of locking pin is connected with the locking press button for pushing it to move forward and backward, and the spring for resetting locking pin is set to described
Between locking press button and the fixture block.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615646.3A CN110251326A (en) | 2019-07-09 | 2019-07-09 | A kind of foldable electric wheeled chair |
| PCT/CN2019/126137 WO2021004013A1 (en) | 2019-07-09 | 2019-12-18 | Collapsible electric wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910615646.3A CN110251326A (en) | 2019-07-09 | 2019-07-09 | A kind of foldable electric wheeled chair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110251326A true CN110251326A (en) | 2019-09-20 |
Family
ID=67925223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910615646.3A Pending CN110251326A (en) | 2019-07-09 | 2019-07-09 | A kind of foldable electric wheeled chair |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110251326A (en) |
| WO (1) | WO2021004013A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111249079A (en) * | 2020-01-21 | 2020-06-09 | 广州视源电子科技股份有限公司 | Anti-tilting wheelchair |
| CN111374842A (en) * | 2020-04-14 | 2020-07-07 | 浙江爱司米电气有限公司 | Foldable wheelchair |
| WO2021004013A1 (en) * | 2019-07-09 | 2021-01-14 | 苏州凯道智能设备有限公司 | Collapsible electric wheelchair |
| CN113230050A (en) * | 2021-03-29 | 2021-08-10 | 浙江英洛华康复器材有限公司 | Hidden operation structure for folding, locking and releasing wheelchair |
| CN113476227A (en) * | 2021-07-21 | 2021-10-08 | 中山小神童创新科技有限公司 | Support bracket and handrail using same |
| CN115258018A (en) * | 2022-07-01 | 2022-11-01 | 东阳市联宜机电有限公司 | Folding seat and folding tool of riding instead of walk |
| CN115843287A (en) * | 2021-06-01 | 2023-03-24 | Ｗｈｉｌｌ株式会社 | Electric mobile device |
| CN116687679A (en) * | 2023-07-21 | 2023-09-05 | 广东大洋医疗科技股份有限公司 | Folding wheelchair |
| CN117281698A (en) * | 2020-08-09 | 2023-12-26 | 上海邦邦机器人有限公司 | foldable wheelchair |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113730116B (en) * | 2021-09-24 | 2024-04-19 | 浙江爱司米电气有限公司 | Foldable wheelchair |
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| WO2021004013A1 (en) * | 2019-07-09 | 2021-01-14 | 苏州凯道智能设备有限公司 | Collapsible electric wheelchair |
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| CN117281698A (en) * | 2020-08-09 | 2023-12-26 | 上海邦邦机器人有限公司 | foldable wheelchair |
| CN113230050A (en) * | 2021-03-29 | 2021-08-10 | 浙江英洛华康复器材有限公司 | Hidden operation structure for folding, locking and releasing wheelchair |
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| CN113476227B (en) * | 2021-07-21 | 2022-05-31 | 中山小神童创新科技有限公司 | Support bracket and handrail using same |
| CN113476227A (en) * | 2021-07-21 | 2021-10-08 | 中山小神童创新科技有限公司 | Support bracket and handrail using same |
| CN115258018A (en) * | 2022-07-01 | 2022-11-01 | 东阳市联宜机电有限公司 | Folding seat and folding tool of riding instead of walk |
| CN116687679A (en) * | 2023-07-21 | 2023-09-05 | 广东大洋医疗科技股份有限公司 | Folding wheelchair |
| CN116687679B (en) * | 2023-07-21 | 2024-01-30 | 广东大洋医疗科技股份有限公司 | Folding wheelchair |
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|---|---|
| WO2021004013A1 (en) | 2021-01-14 |
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