CN2438439Y - Push-pull rod type convenient wheelchair - Google Patents
Push-pull rod type convenient wheelchair Download PDFInfo
- Publication number
- CN2438439Y CN2438439Y CN 00247753 CN00247753U CN2438439Y CN 2438439 Y CN2438439 Y CN 2438439Y CN 00247753 CN00247753 CN 00247753 CN 00247753 U CN00247753 U CN 00247753U CN 2438439 Y CN2438439 Y CN 2438439Y
- Authority
- CN
- China
- Prior art keywords
- flywheel
- transmission shaft
- power transmission
- push
- bar
- 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
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- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 238000009434 installation Methods 0.000 claims description 3
- 230000003028 elevating effect Effects 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 1
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Abstract
The utility model discloses a push-and-pull rod formula makes things convenient for wheelchair, including chair frame, seat support, drive wheel and directive wheel, little flywheel and flywheel disk pinion are installed respectively to drive wheel shaft both sides, install big flywheel on one side on the transmission shaft, and flywheel disk gear wheel is installed to the another side, fixed connection actuating handle in the middle of the transmission shaft. The utility model discloses but one-hand operation, simple laborsaving, steering control is nimble convenient, easy to use, strong adaptability, simple structure, it is with low costs.
Description
This utility model relates to a kind of wheelchair, relates to a kind of available hand control push-pull bar specifically and drives the push-and-pull rod-type Convenient wheelchair that wheelchair moves.
At present, the wheelchair kind on the market is a lot, but mostly with hands rotating drive wheel wheelchair is moved for end user oneself, and the handrail of other people push boat chair is installed in the wheelchair back, this type of wheelchair can be promoted by other people, but also end user oneself drives wheelchair, and is more convenient during use.But this type of wheelchair with the hands rotating drive wheel just can make wheelchair advance or retreat, thereby make the both hands driving that the very inconvenience of end user of certain difficulty be arranged, and this type of wheelchair end user oneself be difficult to control turn to, this has also limited end user oneself to a certain extent and has used wheelchair, and this type of wheelchair end user oneself rotates very effort, speed per hour is very slow, and oneself can control freely use the probability of wheelchair very little for a lot of old men, people with disability and patient.
The purpose of this utility model is to provide a kind of one-hand operation, turns to control flexible, is easy to use adaptable push-and-pull rod-type Convenient wheelchair.
The purpose of this utility model is achieved in that
This utility model comprises chair frame, seat support, driving wheel and deflecting roller, its structural feature is: connect live axle and the power transmission shaft that driving wheel is installed on both sides on said frame, said live axle both sides are installed small flywheel and flywheel disc type pinion respectively, on said power transmission shaft, install and the big flywheel of small flywheel by chain drive, at the another side installation of said power transmission shaft and the flywheel disc type gear wheel of flywheel disc type pinion, connect driving handle in said power transmission shaft center fixed.This utility model is owing to adopt bicycle freewheel drive system and bicycle freewheel disc type gear train assembly, so when using, with hands driving handle forward, big flywheel drives small flywheel by chain and rotates, driving wheel rotates forward, flywheel disc type gear train assembly when mounted with flywheel drive system switched in opposite, the not transmission of flywheel disc type gear train assembly, when pulling back handle with hands, the not transmission of flywheel drive system, and the transmission of flywheel disc type gear train assembly, driving wheel can rotate forward continuously.
All fixedly connected turning-bar in the middle of said two deflecting rollers, this connects cross bar above turning-bar, and the cross bar front on both sides connects a pull bar, fixedly turns to console panel on this pull bar.
Advantage of the present utility model is:
Because a cover flywheel drive system and a cover flywheel disc type gear train assembly are installed respectively on live axle, thereby realized the purpose that one-handed performance can make driving wheel rotate, and handle when pushing away forward a cover system rotate, another set of system stops operating, when handle pulled back, the system of rotation stopped operating, and the system that does not rotate begins to rotate, thereby driving wheel can be rotated forward continuously, easy to operate; Of the present utility model turning to by body swing can be realized, turns to control flexible; This utility model is simple in structure, and cost is low, and function is complete, and adaptability is strong.
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is described in further detail.
Fig. 1 is a sketch map of the present utility model;
Fig. 2 is the drive part transmission sketch map of Fig. 1;
Fig. 3 is the transfer sketch map of Fig. 1;
Fig. 4 is a flywheel disc type gear structure sketch map among Fig. 1.
As Fig. 1, shown in Figure 2, in the middle of the chair frame 6 is seat support 3, chair frame front is that driving wheel 13 back are deflecting roller 7, on the chair frame, connect live axle 16 and the power transmission shaft 17 that driving wheel is installed on both sides, the live axle both sides are installed small flywheel 12 and flywheel disc type pinion 15 respectively, on power transmission shaft, install and the big flywheel 11 of small flywheel by chain drive, at the another side installation of power transmission shaft and the flywheel disc type gear wheel 14 of flywheel disc type pinion, connect driving handle 1 in the power transmission shaft center fixed, said flywheel disc type gear as shown in Figure 4, adopt the version of bicycle freewheel, the centre is a Flywheel disc 18, the Flywheel disc outer ring is a toothed disc 19, two block tongue loose slots 23 are arranged on Flywheel disc, block tongue 22 is movably arranged in the block tongue loose slot, the jump ring 24 of one support block tongue is installed in the block tongue loose slot, two circle balls 25 are fixed with gland in two sides at Flywheel disc, the toothed disc inner ring is the latch that cooperates with block tongue, this latch simultaneously is right angle 21 at jump ring, block tongue simultaneously is oblique angle 20, when the intermediary power transmission shaft of Flywheel disc drives the Flywheel disc rotation, Flywheel disc changes facing to latch right angle face, jump ring blocks latch driven gear dish and rotates, when Flywheel disc changes facing to latch oblique angle face, block tongue is pressed on the inclined-plane of latch, this moment, block tongue pressed jump ring, block tongue is skidded off on the inclined-plane of latch come, thereby Flywheel disc then toothed disc does not change; So when using, with hands driving handle forward, power transmission shaft rotates, big flywheel drives small flywheel by chain and rotates, so the intermediary live axle of small flywheel drives driving wheel and rotates, flywheel disc type gear train assembly when mounted with flywheel drive system switched in opposite, like this when the pushing handle power transmission shaft rotates counterclockwise forward, the Flywheel disc of flywheel disc type gear wheel rotates and the toothed disc of Flywheel disc outer ring does not rotate, and the flywheel disc type pinion on this moment live axle toothed disc does not as a same reason also rotate; When after handle promotes certain angle forward, pulling back, power transmission shaft clockwise rotates, the Flywheel disc of the large and small flywheel in the flywheel drive system all rotates, and the chain sprocket of Flywheel disc outer ring does not all rotate, and the flywheel disc type gear wheel on the power transmission shaft began to rotate and drove the flywheel disc type pinion rotation that is engaged with this moment, thereby live axle drives driving wheel and rotates, thus no matter push away forward or pull back handle all can make driving wheel probably a direction rotate continuously; All fixedly connected turning-bar 5 in the middle of said two deflecting rollers 7 as shown in Figure 3, connects cross bar 4 above the turning-bar, the cross bar front on both sides connects a pull bar 17, fixedly turns to console panel 2 on the pull bar; Can will turn to console panel to pull to the seat support place during use, the left and right swing by health relies on a left side or the right side with console panel, realize turning to of deflecting roller, if when not needing user oneself to turn to, steering wheel can be pulled to the seat support back and be used as handrail, as shown in phantom in FIG..The elevating mechanism that one energy lifting seat support is arranged below seat support, elevating mechanism comprises lower fulcrum bar 9 that is actively connected on the chair frame and the upper rack posts 8 that is actively connected on the seat support, thread connection control wheel 10 between the upper and lower pole, rotate the control wheel, change angle between the upper and lower pole by the screw thread transmission, thereby change the distance of seat support and chair frame.
Claims (2)
1, a kind of push-and-pull rod-type Convenient wheelchair, comprise chair frame (6), seat support (2), driving wheel (13) and deflecting roller (7), it is characterized in that: on said chair frame, connect live axle (16) and the power transmission shaft (17) that driving wheel is installed on both sides, said live axle both sides are installed small flywheel (12) and flywheel disc type pinion (15) respectively, on said power transmission shaft, install and the big flywheel (11) of small flywheel by chain drive, at the another side installation of said power transmission shaft and the flywheel disc type gear wheel (14) of flywheel disc type pinion, connect driving handle (1) in said power transmission shaft center fixed.
2, push-and-pull rod-type Convenient wheelchair according to claim 1, it is characterized in that: all fixedly connected turning-bar (5) in the middle of said two deflecting rollers, this connects cross bar (4) above turning-bar, the cross bar front on both sides connects a pull bar (17), fixedly turns to console panel (2) on this pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00247753 CN2438439Y (en) | 2000-08-27 | 2000-08-27 | Push-pull rod type convenient wheelchair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00247753 CN2438439Y (en) | 2000-08-27 | 2000-08-27 | Push-pull rod type convenient wheelchair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2438439Y true CN2438439Y (en) | 2001-07-11 |
Family
ID=33606614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00247753 Expired - Fee Related CN2438439Y (en) | 2000-08-27 | 2000-08-27 | Push-pull rod type convenient wheelchair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2438439Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100518704C (en) * | 2002-08-05 | 2009-07-29 | J.T.拉布斯有限公司 | Manually-propelled vehicle and control components thereof |
-
2000
- 2000-08-27 CN CN 00247753 patent/CN2438439Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100518704C (en) * | 2002-08-05 | 2009-07-29 | J.T.拉布斯有限公司 | Manually-propelled vehicle and control components thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |