Unlock instant, AI-driven research and patent intelligence for your innovation.

An electric wheelchair with its pivoting front cantilever and power frame that is elastically linked with the frame

A technology of electric wheelchairs and power racks, which is applied to vehicle rescue, patient chairs or special transportation tools, medical transportation, etc., and can solve the problem of indirect and inaccurate restraint of the power unit 15, lack of safety, and impact on the seat. Issues such as user comfort

Active Publication Date: 2022-07-19
伍必翔
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, because the front suspension arm 111 is fixed on the vehicle frame 12, the two are integrally connected. Generally speaking, the seat (not shown) is fixed on the vehicle frame 12. Therefore, the front guide wheel 112 When encountering an obstacle and ascending, the front suspension arm 111, the vehicle frame 12 and the seat will also rise at the same time, which will affect the comfort of the user on the seat and also increase the fear of the user over the obstacle
[0005] Secondly, when the front guide wheel 112 encounters an obstacle and rises, the front suspension arm 111 and the vehicle frame 12 will pivot at an angle relative to the rear suspension arm 131. At this time, the pivoted vehicle frame 12 will be pressed against the rear by the shock absorber unit 14. The cantilever 131 can also prevent the power unit 15 from rising and lose its gripping ability. Therefore, when the electric wheelchair is crossing obstacles, it is too indirect to restrain the rise of the power unit 15, which highlights the lack of safety when crossing obstacles. defect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • An electric wheelchair with its pivoting front cantilever and power frame that is elastically linked with the frame
  • An electric wheelchair with its pivoting front cantilever and power frame that is elastically linked with the frame
  • An electric wheelchair with its pivoting front cantilever and power frame that is elastically linked with the frame

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] like Figure 2 to Figure 6As shown, the embodiment of the present invention provides an electric wheelchair which has a front cantilever and a power frame that pivot respectively and is elastically linked with the frame, which is mainly composed of a frame 20, two leading units 30, two power units 40, Two anti-tilt units 50, two first shock-absorbing units 60, two strain units 70, and two second shock-absorbing units 80 are composed, wherein:

[0056] The frame 20 is composed of a plurality of rods, and has a front frame part 21, a rear frame part 22 and two frame linkage parts 23 located between the front and rear frame parts 21 and 22; this embodiment in, as figure 2 As shown, the frame 21 is provided with a seat tube 24 for assembling the seat 25; Figure 7 As shown, the frame 20 also has two lower protrusions 26 disposed on both sides of the front frame portion 21 .

[0057] Two front guide units 30 are respectively pivoted on both sides of the frame 20 , and ea...

Embodiment 2

[0073] like Figure 10 As shown, an electric wheelchair provided by an embodiment of the present invention has a front cantilever and a power frame that pivot respectively and is elastically linked with the frame, which is also composed of a frame 20, a leading unit 30, a power unit 40, The anti-tilt unit 50, the first shock absorber unit 60, the strain unit, and the second shock absorber unit 80 are composed. The difference between the second embodiment and the first embodiment is:

[0074] The front suspension arm pivot portion 311 of the front suspension arm 31 and the power frame pivot portion 411 of the power frame 41 are coaxially provided on the front frame portion 21 . Therefore, the length of the frame 20 along the traveling direction can be shortened to meet the needs of users.

Embodiment 3

[0076] like Figure 11 As shown, the embodiment of the present invention provides an electric wheelchair which has a front cantilever and a power frame that pivot respectively and is elastically linked with the frame. The difference between the third embodiment and the first embodiment is:

[0077] Each strain unit 70 is a shock absorber with a compression spring, one end 73 of the strain unit 70 is assembled on the power frame extension 413 , and the other end 74 of the strain unit 70 is assembled on the frame linkage 23 .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention is an electric wheelchair with a front cantilever and a power frame pivoting respectively and elastically linked with the frame, comprising: a frame, two leading units, two power units, two anti-tilting units, and two first, Two and three shock-absorbing units; the front cantilever of the leading unit and the power frame of the power unit are respectively pivoted to be pivoted on the frame, when the front guide wheel of the leading unit rises as an obstacle, the front cantilever Pivoting to an angle, the first shock absorber unit generates elastic buffering force for the top pressure of the power frame, so that the power source on the power frame and the power wheel are simultaneously stressed, and the downward grip of the power wheel is improved, and The power frame is pressed to the frame by the strain unit, so that the frame is displaced in the same direction, the stability of the frame is increased, and the purpose of improving the safety and comfort of the electric wheelchair when crossing obstacles is achieved.

Description

technical field [0001] The invention relates to an electric wheelchair, in particular to an electric wheelchair which has a front cantilever that pivots and a power frame and is elastically linked with the frame. Background technique [0002] Electric wheelchairs are a necessary means of transportation for the elderly or those with reduced mobility. Because the general road surface has obstacles such as ups and downs, bumps, etc., such as stairs, or protruding road surfaces, etc., the current electric wheelchairs have the ability to overcome the above obstacles. Therefore, the safety and comfort of electric wheelchairs when crossing the above obstacles are extremely important. [0003] like figure 1 As shown, US9,913,768 is an electric wheelchair, which mainly fixes the front cantilever 111 of the leading unit 11 on the frame 12, and the frame 12 and the rear cantilever 131 of the anti-roll unit 13 are pivoted together, and the vehicle There is a shock absorber unit 14 bet...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): A61G5/06A61G5/10
CPCA61G5/06A61G5/10A61G5/1078A61G5/1089A61G2203/723
Inventor 伍必翔
Owner 伍必翔