CN206852724U - A kind of four-bar linkage folds and anti-hypsokinesis structure - Google Patents
A kind of four-bar linkage folds and anti-hypsokinesis structure Download PDFInfo
- Publication number
- CN206852724U CN206852724U CN201720037814.1U CN201720037814U CN206852724U CN 206852724 U CN206852724 U CN 206852724U CN 201720037814 U CN201720037814 U CN 201720037814U CN 206852724 U CN206852724 U CN 206852724U
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- CN
- China
- Prior art keywords
- backrest
- mounting
- chassis
- frame
- 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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- Carriages For Children, Sleds, And Other Hand-Operated Vehicles (AREA)
Abstract
The utility model discloses a kind of folding of four-bar linkage and anti-hypsokinesis structure,Including side arm,Chassis,Backrest after-frame and mounting,The chassis is made up of four connecting rods and two size identical fixed parts,Side arm is installed on the front end both sides of fixed part,Side arm upper end is connected with mounting,The mounting is formed by turning over retarder location after four connecting rods and anti-backrest,Backrest after-frame lower end is assigned into the posterior lateral connecting rod on chassis,This structure starts two side handrails backward when folding,Then bullet pin locking structure driving rope is pressed down on,Backrest after-frame is promoted forward,Drive side arm,Chassis and mounting its excess-three bar synchronization four-rod linkage,Backrest after-frame is promoted until can not be untill refolding,Volume can be saved to greatest extent,Enhance frame strength and whole vehicle stability,Even if under normal road condition in the case of locking structure failure,Backrest after-frame back rotation is encountered visit backrest after turn over retarder location and can stop immediately.
Description
Technical field
Medical care equipment technical field is the utility model is related to, especially a kind of four-bar linkage folds and anti-hypsokinesis structure.
Background technology
With the development and the improvement of people's living standards of social and welfare services, old man, disabled person use more and more
Rehabilitation wheelchair, so as to greatly facilitate the indoor and outdoor activity of old man, disabled person, improves the quality of life of old man, disabled person.
For the ease of carrying and transporting, the seat bottom of wheelchair is frequently provided with fold mechanism, to be folded into reduced size as far as possible.It is existing
Fold mechanism have two it is be hinged in the front rod of X shapes and two be hinged rear connecting rods in X shapes, be in X under seat
The front rod that shape is intersected occupies larger space, and easily turns over backward.
The content of the invention
The purpose of this utility model is to provide a kind of four-bar linkage folding and anti-hypsokinesis structure, former by using four bar connecting rods
Reason, coordinate locking structure, to solve the problems mentioned in the above background technology.
To achieve the above object, the utility model provides following technical scheme：A kind of four-bar linkage folds and anti-hypsokinesis structure,
Including side arm, chassis, backrest after-frame and mounting, the chassis is made up of four connecting rods and two size identical fixed parts,
Pedal is installed, the fixed part is arranged on the rear end bottom of longitudinally connected bar, institute on front side of the chassis in transverse connecting rod
State fixed part lower outer and be installed with rear drive sprocket, side arm, the side arm are installed on the front end both sides of the fixed part
Lower end outside is provided with connecting seat, and connecting seat is arranged with front-wheel, and the side arm upper end is connected with mounting, and the mounting is by four
Turn over retarder location composition after connecting rod and anti-backrest, system is turned in the both ends of the transverse connecting rod on rear side of the mounting after being provided with anti-backrest
Position is moved, retarder location is turned over after anti-backrest and is provided with locking structure, the backrest after-frame lower end assigns into the posterior lateral connection on chassis
On bar, backrest rear portion middle and lower part is provided with locked and fixed part, and locked and fixed part is fixedly connected with the locking structure of mounting, the backrest
Both sides are provided with bar above after-frame, and armrest pad is provided with bar, and the bar front end on right side is provided with button remote control
Device.
As further program of the utility model：The side arm upper end is set to bend arcuate structure.
As further program of the utility model：The chassis is arranged to rectangle, and the connection rod rear end of the left and right sides
Support bar is inside plugged with, chassis is fixedly connected with rear drive sprocket and is set to integral structure.
As further program of the utility model：The backrest rear portion is set to Jiong type, and inner side is provided with back cushion.
As further program of the utility model：The mounting is set to rectangle, and cushion is provided with mounting.
As further program of the utility model：The side arm, chassis, the connecting place of backrest after-frame and mounting are equipped with
Axis connection is rotated, folded, folded and is fixed.
As further program of the utility model：The pedal possesses independent rotational structure with bar.
Compared with prior art, the utility model beneficial effect：
This four-bar linkage folds and anti-hypsokinesis structure, according to parallelogram not stationarity, movable principle, is connected using tetrad
It is dynamic, coordinate bullet pin locking structure to fold the purpose for folding and fixing to reach, bar and pedal are not involved in four-rod linkage, have
The standby function of independently rotating, can save volume, the one-part form on four-rod linkage chassis and the one with rear drive sprocket to greatest extent
Change, enhance frame strength and whole vehicle stability, retarder location is turned over after anti-backrest in the case of locking structure failure and can be with
Prevent backrest after-frame from turning over.
Brief description of the drawings
Fig. 1 is overall exploded view of the present utility model；
Fig. 2 is overall structure figure of the present utility model；
Fig. 3 is overall side view of the present utility model；
Fig. 4 is folding picture of the present utility model.
In figure：1- side arms；2- chassis；3- backrest after-frames；4- mountings；5- connecting rods；6- fixed parts；7- pedals；After 8-
Driving wheel；9- connecting seats；10- front-wheels；11- locking structures；12- bars；13- armrest pads；14- button remote controls；15- is sat
Pad；16- support bars；17- fixtures；18- back cushions；Retarder location is turned over after the anti-backrests of 19-.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to Fig. 1-4, in the utility model embodiment, a kind of four-bar linkage folds and anti-hypsokinesis structure, including side arm 1,
Chassis 2, backrest after-frame 3 and mounting 4, chassis 2 are made up of four connecting rods 5 and two size identical fixed parts 6, and chassis 2 is set
Rectangle is set to, pedal 7 is installed in the front side transverse connecting rod 5 of chassis 2, fixed part 6 is arranged on the rear end bottom of longitudinally connected bar 5
Portion, and support bar 16 is plugged with the rear end of connecting rod 5 of the left and right sides, the lower outer of fixed part 6 is installed with rear drive sprocket
8, chassis 2 is fixedly connected with rear drive sprocket 8 and is set to integral structure, is provided with side arm 1 on the front end both sides of fixed part 6, under side arm 1
End outside is provided with connecting seat 9, and connecting seat 9 is arranged with front-wheel 10, and the upper end of side arm 1 is set to bend arcuate structure, the upper end of side arm 1
Mounting 4 is connected with, mounting 4 is formed by turning over retarder location 19 after four connecting rods 5 and anti-backrest, the transverse connecting rod 5 of the rear side of mounting 4
Both ends anti-backrest is installed after turn over retarder location 19, retarder location 19 is turned over after anti-backrest and is provided with locking structure 11, mounting 4 is set to square
Shape, cushion 15 is installed on mounting 4, the lower end of backrest after-frame 3 is assigned into the posterior lateral connecting rod 5 on chassis 2, backrest rear portion 3
Middle and lower part is provided with locked and fixed part 17, and locked and fixed part 17 is fixedly connected with the locking structure 11 of mounting 4, the top of backrest after-frame 3
Both sides are provided with bar 12, and armrest pad 13 is provided with bar 12, and the front end of bar 13 on right side is provided with button remote control
Device 14, backrest rear portion 3 are set to Jiong type, and inner side is provided with back cushion 18, side arm 1, chassis 2, the phase of backrest after-frame 3 and mounting 4
Rotation axis connection is equipped with even, folded, folded and is fixed, pedal 7 possesses independent rotational structure with bar 12.This
Structure starts two side handrails backward when folding, and then presses down on bullet pin locking structure 11 and drives rope, promotes backrest forward
After-frame 3, side arm 1, chassis 2 and mounting 4 its excess-three bar synchronization four-rod linkage are driven, promote backrest after-frame 3 until can not roll over again
It is stacked as stopping, pedal 7 possesses independent rotational structure with bar 12, and volume, bottom can be saved to greatest extent by being not involved in four-rod linkage
The one-part form of disk 2 and the integration with rear drive sprocket 8, enhance frame strength and whole vehicle stability, under normal road condition i.e.
In the case of making the failure of locking structure 11, the back rotation of backrest after-frame 3 is encountered visit backrest after turn over retarder location 19 and can stop immediately.
In summary：This four-bar linkage folds and anti-hypsokinesis structure, starts two side handrails backward during folding, then presses down on
Bullet pin locking structure 11 drives rope, promotes backrest after-frame 3 forward, drives side arm 1, chassis 2 and its excess-three bar of mounting 4 synchronization four
Bar links, and promotes backrest after-frame 3 until can not be untill refolding, pedal 7 possesses independent rotational structure with bar 12, no
Volume, the one-part form on chassis 2 and the integration with rear drive sprocket 8 can be saved to greatest extent by participating in four-rod linkage, enhance car
Frame intensity and whole vehicle stability, even if under normal road condition in the case of the failure of locking structure 11, the back rotation of backrest after-frame 3 is touched
Retarder location 19 is turned over after to anti-backrest immediately to stop.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (7)
1. a kind of four-bar linkage folds and anti-hypsokinesis structure, including side arm（1）, chassis（2）, backrest after-frame（3）And mounting（4）, its
It is characterised by：The chassis（2）By four connecting rods（5）With two size identical fixed parts（6）Composition, the chassis（2）
The transverse connecting rod of front side（5）On pedal is installed（7）, fixed part（6）Installed in longitudinally connected bar（5）Rear end bottom,
The fixed part（6）Lower outer is installed with rear drive sprocket（8）, fixed part（6）Front end both sides on side arm is installed
（1）, the side arm（1）Lower end outside is provided with connecting seat（9）, connecting seat（9）It is arranged with front-wheel（10）, the side arm（1）
Upper end is connected with mounting（4）, mounting（4）By four connecting rods（5）Retarder location is turned over after anti-backrest（19）Composition, the mounting
（4）The transverse connecting rod of rear side（5）Both ends anti-backrest is installed after turn over retarder location（19）, retarder location is turned over after anti-backrest（19）On
Provided with locking structure（11）, the backrest after-frame（3）Lower end assigns into chassis（2）Posterior lateral connecting rod（5）On, after backrest
Portion（3）Middle and lower part is provided with locked and fixed part（17）, locked and fixed part（17）It is fixedly connected with mounting（4）Locking structure（11）,
The backrest after-frame（3）Top both sides are provided with bar（12）, bar（12）On armrest pad is installed（13）, right side is helped
Hand lever（13）Front end is provided with button remote control（14）.
2. a kind of four-bar linkage according to claim 1 folds and anti-hypsokinesis structure, it is characterised in that：The side arm（1）On
End is set to bend arcuate structure.
3. a kind of four-bar linkage according to claim 1 folds and anti-hypsokinesis structure, it is characterised in that：The chassis（2）If
It is set to rectangle, and the connecting rod of the left and right sides（5）Support bar is plugged with rear end（16）, chassis（2）It is fixedly connected with rear drive sprocket
（8）It is set to integral structure.
4. a kind of four-bar linkage according to claim 1 folds and anti-hypsokinesis structure, it is characterised in that：The backrest rear portion
（3）Jiong type is set to, and inner side is provided with back cushion（18）.
5. a kind of four-bar linkage according to claim 1 folds and anti-hypsokinesis structure, it is characterised in that：The mounting（4）If
For rectangle, mounting（4）On cushion is installed（15）.
6. a kind of four-bar linkage according to claim 1 folds and anti-hypsokinesis structure, it is characterised in that：The side arm（1）, bottom
Disk（2）, backrest after-frame（3）And mounting（4）Connecting place be equipped with rotation axis connection, folded, folded and fixed.
7. a kind of four-bar linkage according to claim 1 folds and anti-hypsokinesis structure, it is characterised in that：The pedal（7）
With bar（12）Possesses independent rotational structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720037814.1U CN206852724U (en) | 2017-01-13 | 2017-01-13 | A kind of four-bar linkage folds and anti-hypsokinesis structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720037814.1U CN206852724U (en) | 2017-01-13 | 2017-01-13 | A kind of four-bar linkage folds and anti-hypsokinesis structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206852724U true CN206852724U (en) | 2018-01-09 |
Family
ID=60815147
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720037814.1U Expired - Fee Related CN206852724U (en) | 2017-01-13 | 2017-01-13 | A kind of four-bar linkage folds and anti-hypsokinesis structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206852724U (en) |
-
2017
- 2017-01-13 CN CN201720037814.1U patent/CN206852724U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20190113 |