CN208877041U - Portable wheel chair power assisting device - Google Patents
Portable wheel chair power assisting device Download PDFInfo
- Publication number
- CN208877041U CN208877041U CN201820452146.3U CN201820452146U CN208877041U CN 208877041 U CN208877041 U CN 208877041U CN 201820452146 U CN201820452146 U CN 201820452146U CN 208877041 U CN208877041 U CN 208877041U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- inner ring
- wheelchair
- fixedly connected
- outer ring
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a kind of portable wheel chair power assisting devices, including handle, drive rod, shell, ratchet inner ring, pawl, constant force spring, ratchet outer ring, support frame, fixed device, support plate, described drive rod one end is fixedly connected with handle, and the other end is fixedly connected with shell；Ratchet inner ring and support plate are fixedly connected on the inside of shell；Ratchet inner ring and ratchet outer ring are cooperatively connected, ratchet outer ring is fixedly connected on the support frame, multiple ratchets is disposed between ratchet inner ring and ratchet outer ring, and the rear end of pawl is placed in ratchet inner ring, and connected with the constant force spring in ratchet inner ring, fixed device is connected on support frame periphery.The utility model mechanism is using connecting rod and ratchet Integrated design, while effective transmission force drives main wheel to wheelchair, guarantees that user saves force mode, thus improves wheelchair drive efficiency.In addition, the utility model and wheelchair connection structure are simple, easily assembling, guarantee the convenience of wheelchair user.
Description
Technical field
The utility model relates to a kind of wheelchair manual operation device, especially a kind of power-assisted for wheelchair manual operation device is filled
It sets.
Background technique
Wheelchair is patient or private carrier for disabled, is the important tool of rehabilitation.It is not only patient
Or the walking-replacing tool of disabled person, it is often more important that they can be carried out physical exercise by means of wheelchair and participate in social activities.
Common wheelchair generally by wheelchair frame, wheel, brake apparatus and seats against four parts and forms.Traditional push chairs mostly by other people carry out or
Oneself manual rotating wheel advances, not only laborious but also inconvenient in this way, and great puzzlement is caused for user.
Although occurring hand wheelchair currently on the market, hand wheelchair is the direction of transfer for changing power, to power
Utilization rate it is equally lower.Electric wheelchair in the market needs to continue the reasons such as charging not general in market due to expensive
And.Therefore, for the problem present on, a kind of work-saving device suitable for traditional push chairs just seems particularly significant.
Summary of the invention
The purpose of this utility model is to provide for a kind of suitable for traditional push chairs and with the portable wheel chair power-assisted of hand-drive
Device, to solve the problems, such as that wheelchair is laborious and inconvenient in the market.
The utility model solves the scheme that its technical problem is taken: a kind of portable wheel chair power assisting device, including handle
Hand, drive rod, shell, ratchet inner ring, pawl, constant force spring, ratchet outer ring, support frame, fixed device, support plate, the biography
Lever one end is fixedly connected with handle, and the other end is fixedly connected with shell；Ratchet inner ring and support plate are fixedly connected on the inside of shell；
Ratchet inner ring and ratchet outer ring are cooperatively connected, and ratchet outer ring is fixedly connected on the support frame, between ratchet inner ring and ratchet outer ring
Multiple ratchets are disposed with, and the rear end of pawl is placed in ratchet inner ring, and are connected with the constant force spring 6 in ratchet inner ring,
Fixed device is connected on support frame periphery.
Cylindrical boss is equipped on the inside of the drive rod, when handle is pulled to body interior direction, the circular cylindrical projection
Platform is embedded in the gap between pawl and constant force spring, withstands pawl, receives pawl from, at this time handle, drive rod, shell,
Ratchet inner ring, pawl, constant force spring, support plate, ratchet outer ring, support frame, fixed device will form it is one whole, between there is no
It relatively rotates, realizes emergency braking function.
The portable wheel chair power assisting device is fixed on the wheel inner ring of wheelchair by fixed device.
Pass through drive rod drive with hand the beneficial effects of the utility model are: traditional push chairs are directly driven wheelchair and be changed to hand
Dynamic, it is more labor-saving on the one hand to increase torque in this way, on the other hand avoids hand and directly drives inconvenience caused by wheelchair, keeps hand
Cleaning.
Detailed description of the invention
Fig. 1 is the portable wheel chair power assisting device structural schematic diagram of the utility model；
Fig. 2 is the portable wheel chair power assisting device main view of the utility model；
Fig. 3 is the right sectional view in Fig. 2 along A-A；
Fig. 4 is the cross-sectional view in Fig. 3 along B-B.
Specific embodiment
The working principle of the utility model is further illustrated with reference to the accompanying drawing.
As shown in Figures 1 to 4, a kind of portable wheel chair power assisting device, including handle 1, drive rod 2, shell 3, in ratchet
Circle 4, pawl 5, constant force spring 6, ratchet outer ring 7, support frame 8, fixed device 9, support plate 10.Handle 1 and drive rod 2 pass through spiral shell
Nail is fixed；Drive rod 2 and shell 3 pass through pin connection；Shell 3, ratchet inner ring 4 and support plate 10 are fixed by screw；In ratchet
Circle 4 is cooperatively connected with ratchet outer ring 7, and ratchet outer ring 7 is fixedly connected on support frame 8, between ratchet inner ring 4 and ratchet outer ring 7
Be disposed with multiple ratchets 5, and the rear end of pawl 5 is placed in ratchet inner ring 4, and with 6 company of contact of constant force spring in ratchet inner ring 4
It connects, support frame 8 and ratchet outer ring 7 are fixed by screw, and support frame 8 and fixed device 9 are fixed by screw.
The utility model can realize two functions of quick start and emergency braking.
Device is passed through into the wheel inner ring that fixed device 9 is fixed on wheelchair first, is made between device and wheelchair without opposite
Rotation.User holds handle 1 and pushes forward, and handle 1 drives drive rod 2 to rotate, and drive rod 2 and shell 3 pass through pin connection shape
Integral, shell 3, ratchet inner ring 4 and support plate 10 are rotated together by screw fixation, and pawl 5 is in and puts state outside at this time, are pushed up
Firmly ratchet outer ring 7 rotates counterclockwise it, and ratchet outer ring 7 is fixed in the wheel of wheelchair by support frame 8 and fixed device 9
Circle, therefore the vehicle wheel rotation with wheelchair realizes quick start function.When user, which holds handle 1, to be pulled back, pawl 5 by
To ratchet outer ring 7 limitation compression constant force spring 6 be in interior receipts state, at this time handle 1, drive rod 2, shell 3, ratchet inner ring 4,
The entirety that the entirety and ratchet outer ring 7, support frame 8, fixed device 9 that pawl 5, constant force spring 6, support plate 10 are formed are formed generates
It relatively rotates, therefore wheel chair wheel can continue to rotate.User pushes and pulls the company that wheelchair can be realized before and after passing through handle 1 in this way
Reforwarding is dynamic.
When user wants emergency braking in the process of moving, handle 1 need to only be drawn to body interior direction, in biography
The cylindrical boss 11(of 2 inside of lever is as shown in partial enlargement in Fig. 3) it can be embedded in the gap between pawl 5 and constant force spring 6,
Withstanding pawl 5 receives it from, at this time handle 1, drive rod 2, shell 3, ratchet inner ring 4, pawl 5, constant force spring 6, support
The entirety that plate 10, ratchet outer ring 7, support frame 8, fixed device 9 will form, between there is no relative rotations, realize emergency braking
Function.
Claims (3)
1. a kind of portable wheel chair power assisting device, including handle, drive rod, shell, ratchet inner ring, pawl, constant force spring, ratchet
Outer ring, support frame, fixed device, support plate, it is characterised in that: described drive rod one end is fixedly connected with handle, the other end and outer
Shell is fixedly connected；Ratchet inner ring and support plate are fixedly connected on the inside of shell；Ratchet inner ring and ratchet outer ring are cooperatively connected, outside ratchet
Circle is fixedly connected on the support frame, multiple ratchets is disposed between ratchet inner ring and ratchet outer ring, and the rear end of pawl is placed in spine
It takes turns in inner ring, and is connected with the constant force spring in ratchet inner ring, be connected with fixed device on support frame periphery.
2. portable wheel chair power assisting device according to claim 1, it is characterised in that: be equipped with cylinder on the inside of the drive rod
Shape boss.
3. portable wheel chair power assisting device according to claim 1 or 2, it is characterised in that: the portable wheel chair power-assisted
Device is fixed on the wheel inner ring of wheelchair by fixed device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820452146.3U CN208877041U (en) | 2018-04-02 | 2018-04-02 | Portable wheel chair power assisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820452146.3U CN208877041U (en) | 2018-04-02 | 2018-04-02 | Portable wheel chair power assisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208877041U true CN208877041U (en) | 2019-05-21 |
Family
ID=66492227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820452146.3U Expired - Fee Related CN208877041U (en) | 2018-04-02 | 2018-04-02 | Portable wheel chair power assisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208877041U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108433892A (en) * | 2018-04-02 | 2018-08-24 | 上海理工大学 | Portable wheel chair power assisting device |
-
2018
- 2018-04-02 CN CN201820452146.3U patent/CN208877041U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108433892A (en) * | 2018-04-02 | 2018-08-24 | 上海理工大学 | Portable wheel chair power assisting device |
| CN108433892B (en) * | 2018-04-02 | 2023-12-01 | 上海理工大学 | Portable wheelchair booster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190521 Termination date: 20200402 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |