CN108926440A - wheelchair frame - Google Patents
wheelchair frame Download PDFInfo
- Publication number
- CN108926440A CN108926440A CN201811010893.2A CN201811010893A CN108926440A CN 108926440 A CN108926440 A CN 108926440A CN 201811010893 A CN201811010893 A CN 201811010893A CN 108926440 A CN108926440 A CN 108926440A
- Authority
- CN
- China
- Prior art keywords
- support arm
- auxiliary wheel
- wheelchair frame
- wheel
- car body
- 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.)
- Pending
Links
- 239000006096 absorbing agent Substances 0.000 claims description 23
- 230000035939 shock Effects 0.000 claims description 23
- 244000309464 bull Species 0.000 description 6
- 238000013016 damping Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000005484 gravity Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 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
- A61G5/10—Parts, details or accessories
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G5/00—Chairs or personal conveyances specially adapted for patients or disabled persons, e.g. wheelchairs
- A61G5/10—Parts, details or accessories
- A61G5/1078—Parts, details or accessories with shock absorbers or other suspension arrangements between wheels and frame
Abstract
The present invention discloses a kind of wheelchair frame, including car body, first support arm, driving wheel, the first auxiliary wheel and the second auxiliary wheel, the middle part of the first support arm is articulated in one end of the car body by the first support shaft, first auxiliary wheel is articulated in one end of the first support arm, second auxiliary wheel is set to the other end of the car body, and the driving wheel is articulated in the other end of the first support arm and between first auxiliary wheel and second auxiliary wheel.Wheelchair frame of the present invention can keep each wheel effectively to contact with ground on uneven road surface, guarantee normally travel.
Description
Technical field
The present invention relates to a kind of vehicle frames, more particularly to one kind each wheel and ground can be kept to have on uneven road surface
Effect contact, guarantees the wheelchair frame of normally travel.
Background technique
Existing wheel-chair generally all has a bull wheel, then in order to guarantee the balance of wheel-chair, before and after bull wheel
Direction two sides increase the steamboat of auxiliary, and bull wheel is usually to be directly installed on the vehicle frame of wheel-chair, by the horse being fixed on vehicle frame
Up to driving.And steamboat is usually to be articulated on support arm, support arm is articulated on vehicle frame, and shock-absorbing is carried out by shock absorber, and small
Wheel then carries out Auxiliary support to vehicle frame with support arm, prevents vehicle frame from losing disequilibrium.Although existing this wheel-chair is smooth
Adaptability is preferable on road surface, but traveling is possible to not advance on the road surface of out-of-flatness.This is because forward and backward steamboat
That support is realized by independent support arm and shock absorber, when the bull wheel by the steamboat of low-lying ground front and back be in compared with
When high ground, two steamboats are possible to that the wheelchair wheel can have been directly supported, and the bull wheel can then be erected, can not with it is low-lying
Ground face contact, and entire vehicle frame is to carry out driving advance, therefore, motor at this time by motor output power to bull wheel
Driving force just can not be transformed into the power of advance, to make wheelchair frame that can not advance.
Summary of the invention
Each wheel can be kept effectively to contact with ground on uneven road surface the purpose of the present invention is to provide a kind of,
Guarantee the wheelchair frame of normally travel.
To achieve the goals above, wheelchair frame provided by the invention include car body, it is first support arm, driving wheel, first auxiliary
Wheel and the second auxiliary wheel are helped, the middle part of the first support arm is articulated in one end of the car body by the first support shaft, and described the
One auxiliary wheel is articulated in one end of the first support arm, and second auxiliary wheel is set to the other end of the car body, the master
Driving wheel is articulated in the other end of the first support arm and between first auxiliary wheel and second auxiliary wheel.
Compared with prior art, the first support arm is passed through the first support shaft by one first support arm of setting by the present invention
It is articulated on the car body, and the driving wheel and the first auxiliary wheel is respectively arranged to the both ends of the first support arm, by
Forming two supporting points between the drive-connecting shaft that first support shaft and second auxiliary wheel and car body are pivotally connected therefore can
Effectively to support the car body, it is made to keep balance；Also, since the first support arm can be put along first support shaft
Dynamic, the height of the driving wheel and first auxiliary wheel can be by swinging adjust automatically, therefore, when encountering upward slope, descending
And when uneven equal road surfaces, the first support arm can adjust the height of the driving wheel Yu first auxiliary wheel in time, from
And the case where adapting to road surface automatically, avoid traditional car when encountering wrong path face, intermediate driving wheel is lifted by forward and backward auxiliary wheel
And the case where cannot landing, causing car that can not advance；The present invention passes through the swing adjust automatically of first support arm, it is ensured that institute
Stating driving wheel can effectively contact at any time with ground, guarantee wheelchair frame energy normally travel.
Preferably, the wheelchair frame further includes second support arm, the second support arm is set to the car body and described the
Between two auxiliary wheels, one end of the second support arm is articulated in the car body, the other end and described second by the second support shaft
Auxiliary wheel pivot joint.By the way that the second support arm is arranged, second auxiliary wheel is set also to be able to achieve swing, and then reach adjust automatically
Purpose.
Specifically, shock absorber is equipped between the second support arm and the car body.The shock absorber can be to second support arm
Damping is carried out, vibration is avoided to be passed directly on car body and is conducive to keep second auxiliary wheel and ground face contact.
Specifically, shock absorber is equipped between the first support arm and the second support arm.The shock absorber can be to first
Support arm and second support arm carry out damping, and vibration is avoided to be passed directly on car body and be conducive to first auxiliary wheel and second
Auxiliary wheel is kept and ground face contact.
Specifically, the first support arm is equipped with the first top, and the second support arm is equipped with and can support with described first
The second top that top is mutually supported.First top can mutually be limited with second top, to prevent
The first support arm is excessively swung with the second support arm.
Preferably, being equipped with shock absorber between the first support arm and the car body.The shock absorber can be to first support arm
Damping is carried out, vibration is avoided to be passed directly on car body, improves comfort.
Preferably, the first support arm includes the first strut and the second strut, first strut and second strut
It is mutually pivotally connected by first support shaft, and is equipped with shock absorber between first strut and the second strut.
Preferably, the wheelchair frame further includes driving device, the driving device be set in the first support arm and
The driving wheel is driven to rotate.
Specifically, first support shaft is set in parallel with second support shaft.
Specifically, the level height of first support shaft is greater than the level height of second support shaft.
Detailed description of the invention
Fig. 1 is the three-dimensional structure diagram of wheelchair frame embodiment one of the present invention.
Fig. 2 is the side view of wheelchair frame embodiment one of the present invention.
Fig. 3 is the exploded view of wheelchair frame embodiment one of the present invention.
Structure chart when Fig. 4 is the upward slope of wheelchair frame embodiment one of the present invention.
Fig. 5 is the three-dimensional structure diagram of wheelchair frame embodiment two of the present invention.
Fig. 6 is the side view of wheelchair frame embodiment two of the present invention.
Fig. 7 is the exploded view of wheelchair frame embodiment two of the present invention.
Structure chart when Fig. 8 is the upward slope of wheelchair frame embodiment two of the present invention.
Structure chart when Fig. 9 is the descending of wheelchair frame embodiment two of the present invention.
Figure 10 is the three-dimensional structure diagram of wheelchair frame embodiment three of the present invention.
State diagram when Figure 11 is the upward slope of wheelchair frame embodiment three of the present invention.
Specific embodiment
For the technology contents that the present invention will be described in detail, construction feature, the effect realized, below in conjunction with embodiment and match
Attached drawing is closed to be explained in detail.
As shown in Figures 1 to 4, the wheelchair frame 100 of the embodiment of the present invention one is expanded in figure comprising car body 1, first
Support arm 2, second support arm 3, driving wheel 4, the first auxiliary wheel 5 and the second auxiliary wheel 6, the first support arm 2, second support arm 3, active
The 4, first auxiliary wheel 5 of wheel and the second auxiliary wheel 6 are distributed in the two sides of the car body 1, and the middle part of the first support arm 2 passes through the
One support shaft 2a is articulated in one end of the car body 1, and first auxiliary wheel 5 is articulated in one end of the first support arm 2.It is described
Driving wheel 4 is articulated in the other end of the first support arm 2 and between first auxiliary wheel 5 and second auxiliary wheel 6.
The second support arm 3 is set between the car body 1 and second auxiliary wheel 6, specifically, one end of the second support arm 3
Extend articulated section, the car body 1, the other end and second auxiliary wheel are articulated in by the second support shaft 3a on articulated section
6 pivot joints.The second support arm 3 can make second auxiliary wheel 6 also be able to achieve swing, and then achieve the purpose that adjust automatically.
The first support shaft 2a is set in parallel with the second support shaft 3a, and the level height of the first support shaft 2a is greater than institute
State the level height of the second support shaft 3a.The pivot joint center of first auxiliary wheel 5 and the second auxiliary wheel 6 is in straight up.
Again as shown in Figures 2 and 3, shock absorber 7 is equipped between the first support arm 2 and the second support arm 3.The shock-absorbing
Device 7 is shock-proof spring.The first support arm 2 is substantially L-shaped, and one end of the damper is articulated in the L-type of the first support arm 2
Short side lower end, the level height of the drive-connecting shaft of the two is less than the level height of the first support shaft 2a；The damper
The other end is articulated in the second support arm 3, and the level height of the drive-connecting shaft of the two is high greater than the level of the second support shaft 3a
Degree, so that the shock absorber 7 is inclined to set；Setting can make the first support arm 2 swing with the second support arm 3 in this way
When be central axis direction along the shock absorber 7 to the force direction of the shock absorber 7.The shock absorber 7 can be to
One support arm 2 and second support arm 3 carry out damping, and vibration is avoided to be passed directly on car body 1 and be conducive to first auxiliary wheel 5
And second auxiliary wheel 6 keep with ground face contact.
The first support arm 2 is equipped with the first top 2b, and the second support arm 3 is equipped with can be with first top
The second top 3b that 2b is mutually supported.The first top 2b can be limited mutually with the second top 3b, thus
Prevent the first support arm 2 from excessively swinging with the second support arm 3.
The first support arm 2 includes the first strut 21 and the second strut 22, first strut 21 and second strut
22 are fixedly connected to form an entirety.The first support shaft 2a and the first auxiliary wheel 5 are set on first strut 21, institute
It states driving wheel 4 to be set on second strut 22, first auxiliary wheel 5 is set on first strut 21.
The wheelchair frame 100 further includes driving device 8, and the driving device 8 includes motor and retarder, the driving
Device 8 is set in the first support arm 2 and the driving wheel 4 is driven to rotate.
In summary again referring to Fig. 4, being retouched in detail to the working principle of the wheelchair frame 100 of the present embodiment one below
It states,
When the wheelchair frame 100 is walked on smooth road surface, the gravity of the car body 1 is applied to described first
Support axis 2a and the second support shaft 3a, at this point, first auxiliary wheel 5 provide a upward support force, the driving wheel 4 provide to
On support force, the two supports gravity suffered by the first support shaft 2a simultaneously.And second auxiliary wheel 6 provide one to
On support force, the shock absorber 7 provide one to component supports described in second support arm 3, the two supports described second simultaneously
Gravity suffered by axis 3a is supportted, and then can smoothly support the weight of the entire car body 1.
When the wheelchair frame 100 is walked on the road surface of out-of-flatness, for example, go up a slope when, second auxiliary wheel 6 by
To the jacking force on slope, the second support arm 3, which generates a torque, is rotated up it along the second support shaft 3a, and compresses
The shock absorber 7, second support arm 3 described in pushing tow makes second auxiliary wheel 6 to balance this torque to the shock absorber 7 simultaneously
It remains and is contradicted with the slope.And the driving wheel 4 is when going up a slope, jacking force of first auxiliary wheel 5 by slope,
The first support arm 2 will generate a torque, and it makes to be rotated up along the first support shaft 2a, therefore, at described first
First auxiliary wheel 5 of the other end of arm 2 then has the tendency that rotating down and remains conflict with slope.Meanwhile when stating
When one auxiliary wheel 5 first goes up a slope, under the action of first support arm 2, the driving wheel 4 then have the tendency that rotating down and with it is oblique
Slope surface remains conflict.Therefore, it is adjusted by the rotation of the first support arm 2, the driving wheel 4 can be enable to protect always
Hold with ground face contact, thus guarantee effectively drive a vehicle.
Compared with prior art, the first support arm 2 is passed through the first support by one first support arm 2 of setting by the present invention
Axis 2a is articulated on the car body 1, and the driving wheel 4 and the first auxiliary wheel 5 are respectively arranged at the first support arm 2
Both ends, due to forming two supports between the first support shaft 2a and the drive-connecting shaft of second auxiliary wheel 6 and car body 1 pivot joint
Therefore point can effectively support the car body 1, it is made to keep balance；Also, since the first support arm 2 can be along described
One support shaft 2a is swung, the height of the driving wheel 4 and first auxiliary wheel 5 can by swinging adjust automatically, therefore, when
When encountering upward slope, descending and the road surfaces such as uneven, the first support arm 2 can adjust the driving wheel 4 and described first in time
The height of auxiliary wheel 5, so that the case where adapting to road surface automatically, avoids traditional car when encountering wrong path face, intermediate driving wheel 4
The case where being lifted and cannot be landed by forward and backward auxiliary wheel, causing car that can not advance；The present invention passes through the swing of first support arm 2
Adjust automatically, it is ensured that the driving wheel 4 can effectively contact at any time with ground, guarantee that wheelchair frame 100 can be just
Often traveling.
As shown in Figures 5 to 9, the wheelchair frame 200 of the embodiment of the present invention two, the embodiment of the present invention wheel are expanded in figure
Wheel-chair frame is essentially identical with above-described embodiment one, and difference is the structure of the first support arm 2 ', the embodiment of the present invention
First support arm 2 ' includes the first strut 21 ', the second strut 22 ' and shock absorber 23 ', and the first support arm 2 ' passes through described first
Support axis 2a ' is articulated on the car body 1, first strut 21 ' and the mutually pivot joint of the second strut 22 ', drive-connecting shaft and institute
It states the first support shaft 21 ' coaxially, and the shock absorber 23 ' is set between first strut 21 ' and the second strut 22 '.This reality
The wheelchair frame 200 of example two is applied in uphill, downhill, the first support arm 2 ', the swing principle of second support arm 3 and above-described embodiment
The working principle of one wheelchair frame 100 be it is essentially identical, effect be also it is similar, be not repeated to describe herein, only this reality
It applies and is additionally arranged a shock absorber 23 ' in the first support arm 2 ' of example two, so that the shock-proof effect of the first support arm 2 ' is more preferable.
The wheelchair frame 300 of the embodiment of the present invention three, the wheelchair of the present embodiment are expanded as shown in Figure 10 to Figure 11, in figure
Vehicle frame 300 includes car body 301, first support arm 302, driving wheel 303, the first auxiliary wheel 304, the second auxiliary wheel 305 and driving dress
(not shown) is set, the middle part of the first support arm 302 is articulated in one end of the car body 301 by the first support shaft 302a,
First auxiliary wheel 304 is articulated in one end of the first support arm 302, and second auxiliary wheel 305 passes through the second support shaft
305a is articulated in the other end of the car body 301, and the driving wheel 303 is articulated in the other end of the first support arm 302 and position
Between first auxiliary wheel 304 and second auxiliary wheel 305.The driving device is set to the first support arm 302
Above and the driving wheel 303 is driven to rotate.The first support shaft 301a is set in parallel with the second support shaft 305a, institute
The level height for stating the first support shaft 302a is greater than the level height of the second support shaft 305a.In addition, the first support arm
It is also provided with shock absorber between 302 and the car body 301, and then damping can be carried out to first support arm 302, avoids vibration straight
It connects and passes on car body 301, improve comfort.
Again as shown in figure 11, the wheelchair frame 300 of the present embodiment when walking on the road surface of out-of-flatness, such as go up a slope when,
Second auxiliary wheel 305 can lift the end of the car body 301 after the jacking force by slope, and the car body 301
The first support arm 302 of the other end can swing, the driving wheel 303 may leave ground, at this point, due to described
First auxiliary wheel 304 still lands, and therefore, the first support arm 302 can generate one in one end of first auxiliary wheel 304
Upward torque so that the first support arm 302 is swung, and then makes first support arm 302 described in described 303 one end of driving wheel
To lower swing, it is affixed on the driving wheel 303 on ground, to guarantee first auxiliary wheel 304, driving wheel 303
And second auxiliary wheel 305 can simultaneously with ground face contact, guarantee effectively drive a vehicle.
The above disclosure is only a preferred example of the present invention, cannot limit the right model of the present invention with this certainly
It encloses, therefore according to equivalent variations made by scope of the present invention patent, still falls within the range that the present invention is covered.
Claims (10)
1. a kind of wheelchair frame, it is characterised in that: including car body, first support arm, driving wheel, the first auxiliary wheel and the second auxiliary
Wheel, the middle part of the first support arm are articulated in one end of the car body by the first support shaft, and first auxiliary wheel is articulated in
One end of the first support arm, second auxiliary wheel are set to the other end of the car body, and the driving wheel is articulated in described
The other end of first support arm and between first auxiliary wheel and second auxiliary wheel.
2. wheelchair frame as described in claim 1, it is characterised in that: the wheelchair frame further includes second support arm, and described
Two support arms are set between the car body and second auxiliary wheel, and one end of the second support arm is pivotally connected by the second support shaft
In the car body, the other end and second auxiliary wheel are pivotally connected.
3. wheelchair frame as claimed in claim 2, it is characterised in that: be equipped with shock-absorbing between the second support arm and the car body
Device.
4. wheelchair frame as claimed in claim 2, it is characterised in that: be equipped between the first support arm and the second support arm
Shock absorber.
5. such as the described in any item wheelchair frames of claim 2 to 4, it is characterised in that: the first support arm is equipped with first and supports
Top, the second support arm are equipped with the second top that can mutually support with first top.
6. wheelchair frame as described in claim 1, it is characterised in that: be equipped with shock-absorbing between the first support arm and the car body
Device.
7. wheelchair frame as described in claim 1, it is characterised in that: the first support arm includes the first strut and second
Bar, first strut is mutually pivotally connected with second strut by first support shaft, and first strut and second
Shock absorber is equipped between strut.
8. wheelchair frame as described in claim 1, it is characterised in that: the wheelchair frame further includes driving device, the drive
Dynamic device is set in the first support arm and the driving wheel is driven to rotate.
9. wheelchair frame as claimed in claim 2, it is characterised in that: first support shaft and second support shaft are in flat
Row setting.
10. wheelchair frame as claimed in claim 2, it is characterised in that: the level height of first support shaft is greater than described
The level height of second support shaft.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811010893.2A CN108926440A (en) | 2018-08-31 | 2018-08-31 | wheelchair frame |
| PCT/CN2018/106538 WO2020042249A1 (en) | 2018-08-31 | 2018-09-19 | Wheelchair frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811010893.2A CN108926440A (en) | 2018-08-31 | 2018-08-31 | wheelchair frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108926440A true CN108926440A (en) | 2018-12-04 |
Family
ID=64443243
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811010893.2A Pending CN108926440A (en) | 2018-08-31 | 2018-08-31 | wheelchair frame |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108926440A (en) |
| WO (1) | WO2020042249A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110576923A (en) * | 2019-08-15 | 2019-12-17 | 东莞威信运动用品有限公司 | Self-adaptive frame |
| CN113303985A (en) * | 2021-04-30 | 2021-08-27 | 浙江英洛华康复器材有限公司 | Split type medical care bed |
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| CN2580935Y (en) * | 2002-10-28 | 2003-10-22 | 唐承慧 | Electric wheel chair car shock reducing incline proof device |
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| US7828310B2 (en) * | 2009-02-25 | 2010-11-09 | Karma Medical Products Co., Ltd. | Chassis structure for mid-wheel drive power wheelchair |
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- 2018-09-19 WO PCT/CN2018/106538 patent/WO2020042249A1/en active Application Filing
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| JPH081553A (en) * | 1994-06-15 | 1996-01-09 | Murata Mach Ltd | Robot-mounted automated guided vehicle |
| CN2580935Y (en) * | 2002-10-28 | 2003-10-22 | 唐承慧 | Electric wheel chair car shock reducing incline proof device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113303985A (en) * | 2021-04-30 | 2021-08-27 | 浙江英洛华康复器材有限公司 | Split type medical care bed |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020042249A1 (en) | 2020-03-05 |
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| CB02 | Change of applicant information |
Address after: 523000 No. 8, 1st Road, Qiaotou third industrial zone, Houjie Town, Dongguan City, Guangdong Province Applicant after: Guangdong Qunwang Technology Co.,Ltd. Address before: 523000 Dongguan Weixin sporting goods Co., Ltd., Qiaotou third industrial zone, Houjie Town, Dongguan City, Guangdong Province Applicant before: DONGGUAN PRESTIGE SPORTING PRODUCTS Co.,Ltd. |
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