CN205698292U - A kind of wheel-chair lifting backrest - Google Patents
A kind of wheel-chair lifting backrest Download PDFInfo
- Publication number
- CN205698292U CN205698292U CN201620366861.6U CN201620366861U CN205698292U CN 205698292 U CN205698292 U CN 205698292U CN 201620366861 U CN201620366861 U CN 201620366861U CN 205698292 U CN205698292 U CN 205698292U
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- China
- Prior art keywords
- cross bar
- backing cushion
- expansion link
- wheel
- cylinder
- 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.)
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- Mattresses And Other Support Structures For Chairs And Beds (AREA)
Abstract
A kind of wheel-chair lifting backrest, including backing cushion, described backing cushion rear surface is provided with serpentine spring, is provided with back frame after described backing cushion, and backing cushion is fixed on back frame by fixing nail, described back frame is provided with cross bar, described cross bar has expansion link and cylinder, and expansion link upper end is linked together by bolt and cross bar, is provided with push rod in described cylinder, push rod upper end is linked together by bolt and cross bar, and described expansion link and cylinder lower end are fixed on wheel-chair vehicle frame.Cylinder drives cross bar to move up and down by push rod simultaneously, cross bar drives backing cushion can make oscilaltion in vertical direction, expansion link coordinates cross bar lifting to stretch up and down, in the handoff procedure of stand-up wheelchair car sitting posture and stance, backing cushion can be close to user back all the time, awards the support that back is certain.
Description
Technical field
This utility model belongs to the technical field of wheel-chair, is specifically related to a kind of wheel-chair lifting backrest.
Background technology
Wheel-chair backrest is the building block in wheel-chair overall structure.Conventional wheel Wheel-chair backrest is vertically fixed on seat cushion
On, it is impossible to accomplish regulation before and after up and down, be not suitable for using in stand-up wheelchair car.
Summary of the invention
This utility model mainly solves the technical problem existing for above-mentioned prior art, it is provided that a kind of wheel-chair lifting is leaned on
The back of the body, improves user comfort, it is adaptable to stand-up wheelchair car.
Above-mentioned technical problem of the present utility model is mainly addressed by following technical proposals: a kind of wheel-chair liter
Fall backrest, including backing cushion, described backing cushion rear surface is provided with serpentine spring, is provided with back frame, leans on after described backing cushion
Back pad is fixed on back frame by fixing nail, and described back frame is provided with cross bar, described cross bar have expansion link and
Cylinder, expansion link upper end is linked together by bolt and cross bar, is provided with push rod in described cylinder, push rod upper end by bolt and
Cross bar links together, and described expansion link and cylinder lower end are fixed on wheel-chair vehicle frame.
This utility model has the advantages that to have arranging density low due to serpentine spring, good pliability and subtracting
The feature of shaking property, can absorb the user vibrations to backrest, plays certain cushioning effect, makes user back more steadily more comfortable
Lean against on backrest.Cylinder drives cross bar to move up and down by push rod simultaneously, and cross bar drives backing cushion can make in vertical direction
Oscilaltion, expansion link coordinates cross bar lifting to stretch up and down, in the handoff procedure of stand-up wheelchair car sitting posture and stance, leans on
Back pad can be close to user back all the time, awards the support that back is certain.Therefore this utility model has simple in construction, design is closed
The features such as reason.
Accompanying drawing explanation
Fig. 1 is this utility model one structural representation.
In figure: 1, backing cushion；2, serpentine spring；3, back frame；4, fixing nail；5, expansion link；6, bolt；7, cylinder；
8, wheel-chair vehicle frame；9, cross bar；10, push rod.
Detailed description of the invention
Below by embodiment, and combine accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment: a kind of wheel-chair lifting backrest, as it is shown in figure 1, a kind of wheel-chair lifting backrest, including backing cushion, institute
Stating backing cushion rear surface and be provided with serpentine spring, be provided with back frame after described backing cushion, backing cushion is fixed on by fixing nail
On back frame, described back frame is provided with cross bar, and described cross bar has expansion link and cylinder, and spiral shell is passed through in expansion link upper end
Bolt and cross bar link together, and are provided with push rod in described cylinder, and push rod upper end is linked together by bolt and cross bar, described in stretch
Contracting bar and cylinder lower end are fixed on wheel-chair vehicle frame.
Serpentine spring can absorb the user vibrations to backrest, plays certain cushioning effect, makes user back more steady
More comfortable lean against on backrest.Cylinder drives cross bar to move up and down by push rod simultaneously, and cross bar drive backing cushion can be vertically
Oscilaltion is made in direction, and expansion link coordinates cross bar lifting to stretch up and down, in stand-up wheelchair car sitting posture and the switching of stance
Cheng Zhong, backing cushion can be close to user back all the time, award the support that back is certain.
Finally it is pointed out that above example is only the more representational example of this utility model.Obviously, this practicality is new
Type is not limited to above-described embodiment, it is also possible to have many deformation.Every according to technical spirit of the present utility model to above example
Any simple modification, equivalent variations and the modification made, is all considered as belonging to protection domain of the present utility model.
Claims (1)
1. a wheel-chair lifting backrest, including backing cushion, it is characterised in that described backing cushion rear surface is provided with serpentine spring, institute
Stating and be provided with back frame after backing cushion, backing cushion is fixed on back frame by fixing nail, and described back frame is provided with
Cross bar, described cross bar has expansion link and cylinder, and expansion link upper end is linked together by bolt and cross bar, in described cylinder
Being provided with push rod, push rod upper end is linked together by bolt and cross bar, and described expansion link and cylinder lower end are fixed on wheel-chair car
On frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620366861.6U CN205698292U (en) | 2016-04-26 | 2016-04-26 | A kind of wheel-chair lifting backrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620366861.6U CN205698292U (en) | 2016-04-26 | 2016-04-26 | A kind of wheel-chair lifting backrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205698292U true CN205698292U (en) | 2016-11-23 |
Family
ID=57290950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620366861.6U Active CN205698292U (en) | 2016-04-26 | 2016-04-26 | A kind of wheel-chair lifting backrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205698292U (en) |
-
2016
- 2016-04-26 CN CN201620366861.6U patent/CN205698292U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |